JP7081276B2 - Cloth transfer mechanism of cloth adhesive device and cloth adhesive device - Google Patents

Description

The present invention relates to a cloth bonding device and a cloth transport mechanism of the cloth bonding device.

Conventionally, a cloth bonding device for manufacturing clothes and the like by bonding cloth is known. For example, the cloth bonding device described in Patent Document 1 includes a nozzle, an upper roller, a lower roller, a roller support portion, and a drive motor. The nozzle is located between the lower cloth and the upper cloth and applies the adhesive to the lower cloth. The roller support portion extends horizontally in a cylindrical shape and supports the lower roller substantially horizontally from the upstream side in the transport direction. The lower roller is arranged below the upper roller. The drive motor drives the lower roller. The cloth bonding device sandwiches and conveys the lower cloth coated with the adhesive and the upper cloth between the lower roller and the upper roller.

Japanese Unexamined Patent Publication No. 2015-190075

In a conventional cloth bonding device, when two sheets of cloth are bonded, the bonded cloth has a bonding step of forming a tubular shape. In the bonding step, an adhesive is applied to the end of the lower cloth, and the ends of the upper cloth are bonded and bonded. Therefore, it is necessary to prevent the position of the lower cloth with respect to the nozzle during transportation. In the conventional cloth bonding device, it is necessary for the operator to perform the bonding operation while holding the cloth, and the position of the cloth tends to shift. Therefore, it becomes difficult to form the cloth into a tubular shape, the adhesive quality is not stable, and the work efficiency is lowered.

An object of the present invention is to provide a cloth bonding device and a cloth transport mechanism of the cloth bonding device that improve work efficiency.

The cloth bonding device of the first aspect of the present invention is located between the lower cloth moving in the transport direction and the upper cloth overlapping the lower cloth from above, and has a nozzle having a discharge port for discharging the adhesive, and the nozzle. A first transport roller provided on the downstream side in the transport direction to transport the lower cloth and the upper cloth to which the adhesive is attached in the transport direction, and a first transport roller provided below the first transport roller. A second transport roller that transports the upper cloth and the lower cloth in the transport direction in cooperation with the transport direction, and a tubular shape that extends along the transport direction and includes the second transport roller at one end in the transport direction. In a cloth bonding device provided with a portion, the adhesive is discharged from the nozzle, and the upper cloth and the lower cloth are conveyed in the transport direction to bond the upper cloth and the lower cloth , the cylinder. The lower cloth is provided on the upstream side of the second transport roller and the nozzle in the transport direction, has a rotation axis parallel to the transport direction, and is orthogonal to the transport direction and the vertical direction. A position control roller that adjusts the position of the end portion, a first drive portion that is provided on the other end side of the tubular portion opposite to the one end portion and serves as a power source for the second transport roller, and the position control roller. A drive unit including a second drive unit that serves as a power source for the cloth, and a cylindrical portion provided on the downstream side of the position control roller in the transport direction and on the upstream side of the second transport roller in the transport direction, are orthogonal to each other. The position control roller controls the second drive unit based on the position of the end portion of the lower cloth that detects the position of the end portion of the lower cloth in the direction and the position of the end portion of the lower cloth detected by the end detection unit. A first adjustment control unit for adjusting the position of the end portion of the lower cloth in the orthogonal direction and a first unit provided inside the tubular portion to transmit the power of the first drive unit to the second transfer roller. It is provided with a transmission mechanism and a second transmission mechanism provided inside the tubular portion to transmit the power of the second drive portion to the position control roller.

In this case, the cylindrical portion is provided with a second transport roller at one end. The drive portion is located on the other end side of the tubular portion. Therefore, the drive unit can be arranged at a location away from the second transfer roller and the position control roller, and the diameter of the cylindrical portion can be reduced. Therefore, it becomes easy to arrange the tubular portion inside the tubular cloth, and the positions of the upper cloth and the lower cloth are less likely to shift. Therefore, it becomes easy to form the cloth into a tubular shape, the adhesive quality is stable, and the work efficiency is improved.

In the cloth bonding device, the inside of the tubular portion is provided with a stretched portion extending in the transport direction and the tubular portion, and the stretched portion is swingably supported around a swinging shaft extending in the orthogonal direction. A fulcrum portion, a roller support portion provided in the extension portion on the downstream side of the fulcrum portion in the transport direction and supporting the second transport roller, and a roller support portion provided in the extension portion on the downstream side of the fulcrum portion in the transport direction. A first support plate that faces the nozzle and supports the lower cloth, and the stretched portion are provided on the upstream side in the transport direction from the fulcrum portion of the stretched portion, and the stretched portion swings around the swing shaft. The second transport roller and the first support plate are moved up and down to provide a gap adjusting mechanism portion for adjusting the gap between the nozzle and the first support plate, and the drive portion adjusts the gap. A third drive unit, which is a drive source for the mechanism unit, may be provided.

In this case, the gap between the nozzle and the first support plate can be adjusted by the third driving portion swinging the stretched portion. Further, since the stretched portion extends in the tubular portion in the transport direction, the diameter of the tubular portion can be reduced as compared with the case where the stretched portion extends in the vertical direction. Further, the third drive unit is provided on the drive unit located on the upstream side of the tubular portion in the transport direction. Therefore, the third drive unit can be arranged at a position away from the second transfer roller and the position control roller, and the diameter of the cylindrical portion can be reduced. Therefore, it becomes easy to arrange the tubular portion inside the tubular cloth, the adhesive quality is stable, and the work efficiency is improved.

The cloth adhesive device is rotatably supported by the stretched portion and includes a roller under the nozzle facing the discharge port of the nozzle, and the roller under the nozzle projects upward from the first support plate. It may come into contact with the lower cloth. In this case, since the lower nozzle roller on the lower side of the discharge port conveys the lower cloth, the lower cloth is difficult to extend between the second transfer roller and the lower nozzle roller. Therefore, the cloth bonding device can ensure the stability of the quality of the lower cloth and the upper cloth bonded to each other.

The cloth bonding device is provided at the upper end of the frame of the tubular portion, and is provided with a second support plate that supports the lower cloth from below, an upstream side of the nozzle in the transport direction, and above the tubular portion. An upper support portion that supports the upper cloth from below may be provided. In this case, the cloth bonding device can be provided with an upper support portion for supporting the upper cloth in the tubular portion, and the configuration can be made compact. The cloth bonding device can stably convey the upper cloth and the lower cloth when they are overlapped and conveyed by the first transfer roller and the second transfer roller.

In the cloth bonding device, the upper support portion may be attached to the end portion of the second support plate on the downstream side in the transport direction. In this case, the mounting structure of the upper support portion can be made more compact. The cloth bonding device can stably convey the upper cloth and the lower cloth when they are overlapped and conveyed by the first transfer roller and the second transfer roller.

The cloth bonding device includes a nozzle moving mechanism for moving the nozzle between an approaching position approaching the first transport roller and a retracting position on the upstream side of the transport direction from the approaching position.
The upper support portion is located at a first position located upstream of the transport direction with respect to the nozzle and at one end or the other end side in the orthogonal direction with respect to the first position. Rotational movement may be possible between the second position retracted from the moving path moving between the approaching position and the retracting position. In this case, when the nozzle is moved between the approach position and the retracted position, by arranging the upper support portion at the second position, it is possible to prevent the upper support portion from interfering with the moving nozzle.

In the cloth bonding device, the second position may be a position on one or the other side in the orthogonal direction with respect to the first position. In this case, since the second position is displaced in the orthogonal direction with respect to the first position, it is easy for the operator to confirm the movement path of the nozzle that moves between the approach position and the retracted position.

In the cloth bonding device, the end detection portion is provided inside the tubular portion, and the first light emitting portion that emits light upward and the first light receiving portion that receives the light emitted by the first light emitting portion. A positioning portion for positioning the upper support portion at the first position and a light emitted by the first light emitting portion provided on the bottom surface of the upper support portion are reflected toward the first light receiving portion. The first reflecting portion is provided with a first reflecting portion, the first reflecting portion can reflect the light when the upper support portion is positioned at the first position by the positioning portion, and the end detecting portion is the first. The position of the end portion of the lower cloth may be detected depending on whether or not the first light receiving portion detects the light reflected by the reflecting portion. In this case, the positioning portion stabilizes the position of the upper support portion at the first position. Since the position of the upper support portion is stable at the first position, it is possible to more reliably irradiate the first reflecting portion with the light from the first light emitting portion. Therefore, in the cloth bonding device, the adjustment accuracy of the position of the end portion of the lower cloth by the adjustment control unit is improved.

In the cloth bonding device, the positioning portion is provided on a positioning shaft portion which is a metal shaft portion extending upward from the second support plate and is provided on the bottom surface of the upper support portion and extends downward, and the upper support portion is provided. When it is located at the first position, it may be provided with a magnet that abuts on the positioning shaft portion. In this case, the position of the upper support portion can be positioned at the first position by the magnet. Therefore, it is possible to reduce the possibility that the upper support portion moves from the first position during the transportation of the upper cloth, and it is possible to reduce the adhesion defect during the adhesion work.

In the cloth bonding device, the second transmission mechanism extends in the transport direction inside the tubular portion, and has a roller shaft portion that rotatably supports the position control roller at the downstream end portion in the transport direction. A belt that connects the roller shaft portion and the output unit of the second drive unit and transmits the driving force of the output unit of the second drive unit to the roller shaft portion, and the belt are housed inside, and the first The arm portion is provided with an arm portion fixed to the two drive portions, and the arm portion can swing around the output portion of the second drive unit, and the position control roller is urged upward via the arm portion. The position control roller moves upward until it comes into contact with the upper support portion by the urging force of the urging member, and the driving portion resists the urging force of the urging member. A fourth drive unit may be provided which moves the roller shaft portion downward by swinging the arm portion and moves the position control roller downward. In this case, the fourth drive unit moves the position control roller downward, so that the position control roller and the upper support unit interfere with each other when the upper support unit moves between the first position and the second position. Can be prevented.

The cloth bonding device is provided in the tubular portion, and is located on the upstream side in the transport direction with respect to the nozzle, and has a terminal detection unit for detecting a terminal position which is an end portion on the upstream side in the transport direction of the lower cloth. When the end detection unit detects the end position of the lower cloth, it may be provided with a discharge stop means for stopping the discharge of the adhesive from the nozzle. In this case, when the end detection unit detects the end position of the lower cloth, the discharge stop means stops the discharge of the adhesive from the nozzle. Therefore, the work efficiency is improved as compared with the case where the operator operates to stop the ejection of the adhesive from the nozzle.

In the cloth bonding device, the terminal detection unit is provided inside the tubular portion, and has a second light emitting unit that emits light upward and a second light receiving unit that receives the light emitted by the second light emitting unit. The terminal detection unit is provided with a second reflecting unit provided on the bottom surface of the upper support unit and reflecting the light emitted by the second light emitting unit toward the second light receiving unit. The terminal position of the lower cloth may be detected depending on whether or not the second light receiving unit detects the light reflected by the reflecting unit. In this case, the second reflecting unit does not reflect the light when the lower cloth is on the path of the light from the second light emitting part, and reflects the light when the lower cloth is not on the path of the light. The end position of the lower cloth can be detected. Since the second reflective portion is provided on the upper support portion, the configuration for detecting the terminal position of the lower cloth can be made compact.

In the cloth bonding device, when the end detection unit detects the end position of the lower cloth, the transfer stop control for stopping the transfer of the upper cloth and the lower cloth by the first transfer roller and the second transfer roller. Means may be provided. In this case, when the end detection unit detects the end position of the lower cloth, the transfer stop control means stops the transfer of the upper cloth and the lower cloth. Therefore, the work efficiency of the cloth bonding device is improved as compared with the case where the worker operates the cloth bonding device to stop the transportation of the upper cloth and the lower cloth.

The cloth bonding device may include a position stop control means for stopping the position adjustment of the lower cloth by the position control roller when the end detection unit detects the end position of the lower cloth. In this case, when the end detection unit detects the end position of the lower cloth, the position stop control means stops the position adjustment of the lower cloth. Therefore, the work efficiency of the cloth bonding device is improved as compared with the case where the worker operates the cloth bonding device to stop the driving of the position control roller.

In the cloth bonding device, in the transport stop control means, after the end detection unit detects the end position of the lower cloth, the first transfer roller and the second transfer roller are driven by a predetermined amount or for a predetermined time, and then. The first transfer roller and the second transfer roller may be stopped. In this case, when the end detection unit detects the end position of the lower cloth, the first transfer roller and the second transfer roller are driven by a predetermined amount or for a predetermined time, and then the transfer of the upper cloth and the lower cloth is stopped. Therefore, the cloth bonding device can stop the transportation of the upper cloth and the lower cloth after the end portion of the lower cloth is surely bonded, and the work efficiency is improved.

The cloth bonding device may include a setting means capable of setting the predetermined amount or the predetermined time until the transfer stop control means stops the first transfer roller and the second transfer roller. In this case, a predetermined amount or a predetermined time for driving the first transfer roller and the second transfer roller until the transfer of the upper cloth and the lower cloth is stopped can be set. Therefore, the cloth bonding device can stop the transportation of the upper cloth and the lower cloth after the end portion of the lower cloth is surely bonded, and the work efficiency is improved.

The cloth transport mechanism of the second aspect of the present invention is located between the lower cloth moving in the transport direction and the upper cloth overlapping the lower cloth from above, and is downstream from the nozzle having a discharge port for discharging the adhesive. A second transport roller provided on the side and transporting the lower cloth and the upper cloth to which the adhesive is attached in cooperation with the first transport roller in the transport direction, and the second transport roller extending along the transport direction. (Ii) A cylindrical portion having a transport roller at one end in the transport direction is provided, the adhesive is discharged from the nozzle to the lower cloth, and the upper cloth and the lower cloth are conveyed in the transport direction. In the cloth transport mechanism of the cloth bonding device for adhering the upper cloth and the lower cloth , the cylindrical portion is provided on the upstream side of the second transport roller and the nozzle in the transport direction, and rotates in parallel with the transport direction. A position control roller having a shaft and adjusting the position of the end portion of the lower cloth in an orthogonal direction orthogonal to the transport direction and the vertical direction, and a cylindrical portion on the other end side opposite to the one end portion. A drive unit provided with a first drive unit that serves as a power source for the second transport roller, a second drive unit that serves as a power source for the position control roller, and a cylindrical portion that is more than the position control roller. An end detection unit provided downstream of the transport direction and upstream of the second transport roller to detect the position of the end of the lower cloth in the orthogonal direction, and the end detection unit detected by the end detection unit. An adjustment control unit that controls the second drive unit based on the position of the end portion of the lower cloth and adjusts the position of the end portion of the lower cloth in the orthogonal direction by the position control roller, and the inside of the cylindrical portion. The first transmission mechanism that transmits the power of the first drive unit to the second transfer roller, and the inside of the cylindrical portion that transmits the power of the second drive unit to the position control roller. It is equipped with a second transmission mechanism.

In this case, the drive unit is located on the upstream side of the tubular portion in the transport direction. Therefore, in the cloth transport mechanism, the drive unit can be arranged at a position away from the second transport roller and the position control roller, and the diameter of the tubular portion can be reduced. Therefore, it becomes easy to arrange the tubular portion inside the tubular cloth, and the positions of the upper cloth and the lower cloth are less likely to shift. Therefore, the cloth bonding device provided with the cloth transport mechanism can easily form the cloth into a tubular shape, the bonding quality is stable, and the work efficiency is improved.

The perspective view of the cloth adhesive apparatus 1. Front view of the cloth adhesive device 1. FIG. 3 is a perspective view of the internal structure of the cloth adhesive device 1. The left side view of the cloth adhesive device 1. The left side view which shows the bonding operation of the upper cloth 6 and the lower cloth 8. The left side view of the internal structure of the cloth adhesive device 1. An exploded perspective view of the nozzle 11. The perspective view of the cloth transport mechanism 701 when the upper support part 314 is in the first position. The perspective view of the internal structure of the cloth transport mechanism 701. Another perspective view of the internal structure of the cloth transport mechanism 701. The perspective view of the internal mechanism of the cloth transport mechanism 701. FIG. 3 is a perspective view of the cloth transport mechanism 701 when the upper support portion 314 is in the second position. The plan view of the cloth transport mechanism 701 when the upper support part 314 is in the second position. The left side view of the stretching mechanism 801 etc. in which the first support plate 831 moved upward. The left side view of the stretching mechanism 801 etc. in which the first support plate 831 moved downward. The plan view of the roller adjustment mechanism part 901. The perspective view of the roller adjustment mechanism part 901 when the lower holding roller 909 is in the upper position. The perspective view of the roller adjustment mechanism part 901 when the lower holding roller 909 is in a lower position. The plan view of the cloth transport mechanism 701 when the upper support part 314 is in the first position. The perspective view of the upper support part 314. Another perspective view of the upper support portion 314. Left side view when the holding portion 971,981 is in the release position. Left side view when the holding portion 971,981 is in the holding position. The electric block diagram of the cloth adhesive device 1. Flow chart of main processing. Flow chart of bonding process. A flow chart of a modified example of the main process.

An embodiment of the present invention will be described. The following explanation uses left and right, front and back, and up and down indicated by arrows in the figure. The cloth adhesive device 1 adheres the upper cloth 6 and the lower cloth 8 with the adhesive Z (see FIG. 5). The upper cloth 6 overlaps the lower cloth 8 from above. The lower cloth 8 and the upper cloth 6 are, for example, flexible cloths. In the present embodiment, as an example, it is assumed that one end side of the tubular cloth 200 is the upper cloth 6 and the other end side is the lower cloth 8 (see FIG. 8). The upper cloth 6 and the lower cloth 8 may be different cloths. In the cloth bonding device 1 of the present embodiment, the lower specific end portion 8A, which is the right end portion of the lower cloth 8, and the upper specific end portion 6A, which is the left end portion of the upper cloth 6, are bonded via the adhesive Z (FIG. 5, see FIG. 8). The cloth bonding device 1 conveys the upper cloth 6 and the lower cloth 8 in the rear direction. In the present embodiment, the rear direction in which the upper cloth 6 and the lower cloth 8 are transported may be referred to as the downstream side in the transport direction, and the front direction may be referred to as the upstream side in the transport direction. Further, the left-right direction orthogonal to the transport direction and the vertical direction may be referred to as an orthogonal direction.

The mechanical configuration of the cloth bonding device 1 will be described with reference to FIGS. 1 to 23. As shown in FIGS. 1 to 4, the cloth adhesive device 1 includes a pedestal portion 2, a pedestal portion 3, an arm portion 4, and a head portion 5. The pedestal portion 2 has a rectangular parallelepiped shape and is fixed to the workbench. The pedestal portion 3 is a columnar shape extending upward from the upper surface of the pedestal portion 2. The arm portion 4 extends to the left from the upper end portion of the pedestal portion 3. The head 5 projects to the left from the left end of the arm 4.

The pedestal portion 2 supports the fixing portion 32. The fixing portion 32 has a rectangular plate shape fixed to the left surface of the pedestal portion 2. The front portion of the fixed portion 32 extends to the front side of the front end of the pedestal portion 2. A slope portion 799 is provided at the rear portion of the left surface of the fixed portion 32. The slope portion 799 extends downward to the left from the upper part of the left surface of the fixed portion 32.

The fixing portion 32 supports the cloth transport mechanism 701 at the front portion on the left surface. The cloth transport mechanism 701 includes a lower transport roller 270, a tubular portion 708, a lower pinching roller 909, a nozzle lower roller 275, a drive unit 800, a lower detection unit 535, a terminal detection unit 545, a first transmission mechanism 840, and a second. It is equipped with a transmission mechanism 900 and the like. The CPU 101, which will be described later, may be provided inside the cloth transport mechanism 701 or may be provided outside the cloth transport mechanism 701 and electrically connected to the cloth transport mechanism 701.

The cloth transport mechanism 701 includes a stretched portion 704, a drive portion accommodating portion 702, and a tubular portion 708. The extending portion 704 extends from the left surface of the fixing portion 32 to the left. The drive unit storage unit 702 is a left portion of the stretched unit 704 in the cloth transport mechanism 701. The upper end of the drive unit accommodating portion 702 is located above the upper end of the extension portion 704. The drive unit storage unit 702 stores the drive unit 800 (see FIG. 3). The front portion 702A of the drive portion storage portion 702 has a box shape. The rear portion 702B of the drive portion accommodating portion 702 extends rearward from the left rear portion of the front portion 702A. The position of the bottom surface 702D of the rear portion 702B is above the bottom surface 702C of the front portion 702A. The rear portion of the bottom surface 702D extends rearward and upward (see FIG. 4).

The tubular portion 708 is provided on the rear side from the rear portion 702B of the drive portion storage portion 702 and extends in the transport direction. The tubular portion 708 includes a lower transport roller 270 and a nozzle lower roller 275 at the rear portion, which is one end in the transport direction. A support plate 705 is provided at the upper end of the drive unit storage portion 702 and the upper end of the frame 710 of the cylindrical portion 708. The support plate 705 is formed along the shape of the upper end of the drive unit accommodating portion 702 and the upper end of the frame 710 of the cylindrical portion 708. In the support plate 705, the portion provided at the upper end of the frame 710 is referred to as a second support plate 714. The second support plate 714 is a portion extending rearward at the rear end portion of the support plate 705. The tubular portion 708 is formed by a frame 710, a second support plate 714, and a rear portion of the stretching mechanism 801.

As shown in FIGS. 1 and 8 to 10, the frame 710 includes a left wall portion 711, a right wall portion 712, a bottom wall portion 713, and an opening portion 719. The bottom wall portion 713 extends rearward from the bottom surface 702D of the rear portion 702B of the drive portion storage portion 702. The vertical position of the bottom wall portion 713 is above the bottom surface 702C of the front portion 702A of the drive portion storage portion 702 and below the second support plate 714. The left wall portion 711 extends upward from the left end portion of the bottom wall portion 713. The right wall portion 712 extends upward from the right end portion of the bottom wall portion 713.

As shown in FIG. 4, the portion 710A rearward from the central portion of the upper end of the frame 710 is slightly below the rear portion 710B of the upper end of the frame 710. At the upper end of the frame 710, the portion 710A and the rear portion 710B are connected by a slope portion 710C.

As shown in FIG. 1, the opening 719 is provided at the rear end of the frame 710. The opening 719 is formed by the rear ends of the left wall portion 711, the right wall portion 712, the bottom wall portion 713, and the second support plate 714, respectively. The rear end of the left wall portion 711 and the rear end of the right wall portion 712 forming the opening 719 extend diagonally forward and upward. The rear end portion of the stretching mechanism 801 described later projects rearward from the inside of the opening 719.

As shown in FIGS. 1, 3, and 4, the head 5 supports the upper transport mechanism 70. The upper transfer mechanism 70 includes a support arm 16, an upper transfer roller 12, an arm air cylinder 122 (see FIG. 24), and an upper transfer motor 112. The support arm 16 extends from the rear to the front below the head 5, and further extends forward and downward. The support arm 16 is swingably supported by the head 5. The support arm 16 rotatably supports the upper transfer roller 12 at the lower end portion. The upper transport roller 12 rotates with the left-right direction as the axial direction. The arm air cylinder 122 is provided on the head 5 in a posture along the vertical direction. The arm air cylinder 122 includes a shaft, and the shaft of the arm air cylinder 122 is connected to the rear end portion of the support arm 16. The support arm 16 swings in the vertical direction by the drive of the arm air cylinder 122.

The upper transfer motor 112 is provided on the support arm 16. The upper transfer motor 112 is connected to the upper transfer roller 12 via a transmission mechanism provided inside the support arm 16. The upper transfer roller 12 is rotated by the power of the upper transfer motor 112.

As the arm air cylinder 122 swings the support arm 16, the upper transfer roller 12 moves between the holding position and the upper retracting position. In FIG. 5, the upper transport roller 12 in the pinch position is shown by a solid line, and the upper transport roller 12 in the upper retract position is shown by a two-dot chain line. The upper transport roller 12 at the pinching position sandwiches the lower cloth 8 and the upper cloth 6 between the lower cloth roller 270 described later. The upper transfer roller 12 is located on the downstream side in the transfer direction from the nozzle 11. The lower transfer roller 270 is below the upper transfer roller 12. The upper transport roller 12 and the lower transport roller 270 cooperate with each other to transport the lower cloth 8 and the upper cloth 6 to which the adhesive Z is attached in the transport direction. The upper transport roller 12 in the upper retract position retracts upward from the upper cloth 6.

As shown in FIGS. 3, 4, and 6, the head portion 5 (see FIG. 1) includes a nozzle moving mechanism 22. The nozzle moving mechanism 22 moves the nozzle 11 between an approaching position approaching the upper transport roller 12 and a retracting position on the upstream side of the transport direction from the approaching position.

The nozzle moving mechanism 22 includes a nozzle motor 113, a support shaft, and a nozzle lever 18 (see FIG. 4 ) . The nozzle motor 113 is a pulse motor provided on the left side inside the head 5. The nozzle motor 113 includes an output shaft with a worm fixed. The support shaft has a cylindrical shape extending in the left-right direction above the worm. The support shaft supports a worm wheel that meshes with the top of the worm. The support shaft is rotated together with the worm wheel by the power of the nozzle motor 113. The support shaft has a flow path of the adhesive Z inside.

As shown in FIG. 4, the nozzle lever 18 extends in the vertical direction, and the nozzle 11 is attached to the lower end portion. The nozzle lever 18 includes a lever member 9 and a cover 181. The lever member 9 (see FIG. 6) is provided on the left side of the worm wheel and has an arm shape extending downward from the left end of the support shaft. The cover 181 extends in the vertical direction and covers the lever member 9 and the holding air cylinder 974 described later.

As shown in FIG. 7, the lever member 9 includes a flow path 21 inside. The flow path 21 communicates with the flow path inside the support shaft. The lower end of the lever member 9 is the nozzle mounting portion 10. The nozzle 11 projects downward from the nozzle mounting portion 10 and further projects to the right. The right part of the nozzle 11 is a rod shape having a substantially triangular shape when viewed from the left side. The nozzle 11 is removable from the nozzle mounting portion 10, and is mounted on the nozzle mounting portion 10 with a screw 14. The nozzle 11 is provided with a nozzle flow path inside. The nozzle flow path is the flow path of the adhesive Z and communicates with the flow path 21. The lever member 9 includes a heater 132 (see FIG. 24) inside the vicinity of the flow path 21. The heat of the heater 132 is conducted to the adhesive Z flowing through the flow path 21.

The nozzle 11 supports the upper cloth 6 from below at the upper end portion. The discharge port 11B is formed on the lower surface of the nozzle 11. The discharge port 11B is a plurality of circular holes arranged at substantially equal intervals in the left-right direction. The discharge port 11B discharges the adhesive Z toward the lower cloth 8. The nozzle mounting portion 10 can be attached to and detached from a plurality of types of nozzles 11 having different widths or positions in the left-right direction of the discharge port 11B.

The support shaft of the nozzle moving mechanism 22 supports the lever member 9 so as to be swingable. Therefore, the nozzle lever 18 swings counterclockwise and clockwise when viewed from the left side. The nozzle lever 18 movably supports the nozzle 11 between the approach position and the retracted position. In FIG. 4, the nozzle 11 in the approaching position is shown by a solid line, and the nozzle 11 in the retracted position is shown by a two-dot chain line. As for the approaching position, when the nozzle 11 is in the approaching position, the discharge port 11B faces downward and faces the lower cloth 8 from above. When the nozzle 11 is in the retracted position, the discharge port 11B faces forward and downward.

As shown in FIG. 3, the head 5 includes a mounting portion 41 and a supply mechanism 45. The mounting portion 41 is provided at substantially the center of the head 5. The mounting portion 41 includes a cover 41A (see FIG. 1), an accommodating portion 41B, a lid 41C, and a heater 131 (see FIG. 24). The cover 41A has a substantially rectangular parallelepiped box shape and extends upward from the upper surface of the head 5. The cover 41A opens in the vertical direction. The accommodating portion 41B is provided inside the cover 41A. The accommodating portion 41B has a substantially rectangular parallelepiped box shape and extends from the inside of the head 5 to the upper end of the cover 41A. The accommodating portion 41B opens upward. The accommodating portion 41B accommodates the cartridge inside the accommodating portion 41B so as to be removable. The lid 41C is detachably provided on the upper side of the accommodating portion 41B, and the upper portion of the accommodating portion 41B is opened and closed. The cartridge contains the heat-meltable adhesive Z. Adhesive Z liquefies above a predetermined temperature and solidifies below a predetermined temperature. The heater 131 is provided in the accommodating portion 41B. The heater 131 heats the cartridge housed in the housing section 41B, and the adhesive Z melts and liquefies.

The supply mechanism 45 supplies the adhesive Z in the cartridge to the nozzle 11. The supply mechanism 45 includes a pump motor 114 and a gear pump. The pump motor 114 is provided inside the arm portion 4 (see FIG. 1). The pump motor 114 includes an output shaft 114A. The gear pump is provided on the front side of the mounting portion 41 and is connected to the right end portion of the support shaft which is the center of swing of the nozzle lever 18. The output shaft 114A is connected to the gear pump via the gear 46A. The gear pump sucks the adhesive Z in the cartridge. The gear pump supplies the sucked adhesive Z to the nozzle 11 via the flow path in the support shaft of the nozzle moving mechanism 22 and the flow path 21 of the lever member 9.

The upper pinching mechanism 600 will be described with reference to FIGS. 2, 3, and 5. The upper pinching mechanism 600 includes an upper arm 607, a tension spring, an upper pinching roller 601 and an upper motor 605, and an upper air cylinder 625 (see FIG. 24).

The cloth bonding device 1 includes an upper arm 607 at the lower part of the arm portion 4. The upper arm 607 extends downward and to the left from the lower part of the arm portion 4. The upper arm 607 can swing about the upper axis W in the front-rear direction by driving the upper air cylinder 625 (see FIG. 24). The urging force of the tension spring is also used for swinging the upper arm 607. The upper air cylinder 625 is provided at the lower part of the arm portion 4. The tip portion 607A of the upper arm 607 is located on the upper side of the tubular portion 708 and on the upstream side in the transport direction of the nozzle 11. The upper holding roller 601 is provided with an upper holding roller 601 on the tip portion 607A side (see FIG. 5). The upper holding roller 601 can rotate about the front-rear direction as an axial direction.

The upper holding roller 601 is located above the upper support portion 314. The upper holding roller 601 can swing around the upper axis W as the upper arm 607 swings. The upper holding roller 601 rotates about the upper axis W between the upper contact position and the upper separation position. The upper contact position is a position where the lower end of the upper holding roller 601 is at the same height as the upper support surface 315A (described later) of the upper support portion 314. In FIG. 5, the upper holding roller 601 when the upper holding roller 601 is in the upper contact position is illustrated by a solid line. When the upper support portion 314 is in the first position (see FIG. 8) and the upper holding roller 601 is in the upper contact position, the upper holding roller 601 comes into contact with the upper support surface 315A of the upper support portion 314.

The upper separation position is a position where the lower end of the upper holding roller 601 is above the upper support surface 315A. In FIG. 5, the upper holding roller 601 when the upper motor support member 604 is in the upper separated position is illustrated by a two-dot chain line.

The upper motor 605 (see FIG. 24) is fixed to the rear of the upper part of the upper arm 607 and can rotate forward and backward. The upper motor 605 rotates the upper holding roller 601 via the drive mechanism.

The upper detection unit 635 (see FIG. 24) is provided on the head 5. The upper detection unit 635 is a known optical sensor. When the upper support portion 314 is in the first position (see FIG. 8), the upper detection portion 635 is above the upper reflection portion 315H (see FIG. 20) of the upper support portion 314. The upper detection unit 635 includes an upper light emitting unit 635A and an upper light receiving unit 635B (see FIG. 24). The upper light emitting unit 635A and the upper light receiving unit 635B are at the same height position as each other. The upper light emitting portion 635A emits light toward the inner region of the upper reflecting portion 315H. The upper light receiving unit 635B can receive light emitted by the upper light emitting unit 635A and reflected by the upper reflecting unit 315H. The upper light emitting portion 635A and the upper light receiving portion 635B are located above the upper reflecting portion 315H when the upper supporting portion 314 is in the first position.

When the upper support portion 314 is in the first position and the upper specific end portion 6A (see FIG. 8) is above the upper reflection portion 315H, the upper specific end portion 6A blocks the light of the upper light emitting portion 635A. At this time, the upper light receiving unit 635B does not receive the light of the upper light emitting unit 635A. When the upper support portion 314 is in the first position and the upper specific end portion 6A is not above the upper reflection portion 315H, the upper reflection portion 315H reflects light upward, and the upper light receiving portion 635B receives the reflected light. Therefore, the upper detection unit 635 can detect whether or not the upper specific end portion 6A is located above the upper reflection unit 315H. Hereinafter, when the upper reflection unit 315H is in the first position, the position directly below the upper light emitting unit 635A in the inner region of the upper reflection unit 315H is referred to as an upper detection position. The upper detection position is a position between the upper reflection portion 315H and the upper light emitting portion 635A when the upper support portion 314 is in the first position. The upper detection position is a predetermined front-rear direction position between the discharge port 11B of the nozzle 11 and the upper holding roller 601 in the approaching position, and a left-right direction position on the left side of the upper holding roller 601. The upper detection position is substantially the same as the lower detection position in the front-rear direction. The upper detection unit 635 detects whether or not the upper specific end portion 6A is in the upper detection position.

8 to 18, the internal configuration of the drive unit accommodating portion 702 and the cylindrical portion 708 will be described. The drive unit accommodating unit 702 and the cylindrical unit 708 include a drive unit 800, a gap adjusting mechanism unit 818, a lower detection unit 535, a terminal detection unit 545, and the like.

As shown in FIGS. 8 to 11, the drive unit 800 is housed in the drive unit storage unit 702. That is, the drive unit 800 is located on the front end portion side which is the other end portion on the opposite side of the one end portion of the cylindrical portion 708 in the transport direction. The drive unit 800 includes a vertical adjustment motor 802 (see FIG. 11), a lower transfer motor 842, a lower motor 902, and a lower air cylinder 931. The vertical adjustment motor 802 is a drive source for the clearance adjusting mechanism unit 818. The lower transfer motor 842 is a power source for the lower transfer roller 270 and the nozzle lower roller 275. The lower motor 902 is a power source for the lower holding roller 909.

As shown in FIG. 11, the gap adjusting mechanism portion 818 includes an eccentric plate 803, a hole portion 805, and a contact portion 806. The drive shaft 812 of the vertical adjustment motor 802 extends to the left. The eccentric plate 803 is fixed around the drive shaft 812. The hole portion 805 and the contact portion 806 will be described later. The gap adjusting mechanism portion 818 is located on the upstream side in the transport direction with respect to the fulcrum portions 810 and 811 of the stretching mechanism 801 described later. The gap adjusting mechanism unit 818 is driven by the drive of the vertical adjustment motor 802 to swing the stretching mechanism 801.

As shown in FIGS. 9 to 11, the rear portion of the stretching mechanism 801 extends inside the tubular portion 708 in the transport direction. The stretching mechanism 801 includes a stretching plate portion 804, a stretching plate portion 808, a swing shaft 809, a fulcrum portion 810, a fulcrum portion 811, a lower transport roller support portion 820, a lower transport roller 270, a nozzle lower roller support portion 826, and a nozzle lower roller. It is equipped with 275, a first support plate 831 (see FIG. 8), and the like.

The stretched plate portion 804 is a plate-shaped member extending in the front-rear direction. The lower front portion of the stretch plate portion 804 is located on the left side of the vertical adjustment motor 802. The extension plate portion 804 extends upward from the left side of the vertical adjustment motor 802, and the upper portion extends downstream in the transport direction. The portion 807 on the downstream side in the transport direction of the stretched plate portion 804 is located inside the cylindrical portion 708 (see FIG. 9).

The stretch plate portion 804 is provided with a hole portion 805 of the gap adjusting mechanism portion 818 in the lower front portion. The eccentric plate 803 is arranged inside the hole 805. The hole 805 has a substantially rectangular shape. The hole 805 includes a contact portion 806. The contact portion 806 is a portion that protrudes upward at the center of the lower end of the hole portion 805 in the front-rear direction. The contact portion 806 is a flat surface extending in the front-rear direction.

The eccentric plate 803 is eccentric so that the distance between the outer circumference of the eccentric plate 803 and the drive shaft 812 changes. The vertical adjustment motor 802 drives the eccentric plate 803 of the gap adjusting mechanism unit 818 by driving the drive shaft 812 to swing the stretching mechanism 801. The details will be described later.

The stretch plate portion 808 is provided so as to face the left side of the portion 807 on the downstream side in the transport direction of the stretch plate portion 804. The stretch plate portion 808 extends in the transport direction. The front end portion of the stretch plate portion 808 is located behind the arm portion 951 described later.

The fulcrum portion 810 and the fulcrum portion 811 are provided at the central portion in the front-rear direction of the stretching mechanism 801. The fulcrum portion 810 is a circular hole portion provided in the central portion in the front-rear direction of the extension plate portion 804. The fulcrum portion 811 is a circular hole portion provided at the front end portion of the extension plate portion 808. The fulcrum portion 810 and the fulcrum portion 811 face each other in the left-right direction.

The swing shaft 809 is inserted into the fulcrum portion 810 and the fulcrum portion 811. The fulcrum portion 810 and the fulcrum portion 811 are located at the front portion of the tubular portion 708. The swing shaft 809 extends in the left-right direction. The left end portion of the swing shaft 809 is inserted into a hole portion 716 provided in the left wall portion 711 of the tubular portion 708 (see FIG. 9). The right end portion of the swing shaft 809 is inserted into a hole portion 717 provided in the right wall portion 712 of the tubular portion 708 (see FIG. 10). The holes 716 and 717 support the swing shaft 809. The stretching mechanism 801 can swing around the swing shaft 809.

As shown in FIGS. 9 to 11, the lower transfer roller support portion 820 supports the lower transfer roller 270. The lower transport roller support portion 820 is provided in the stretching mechanism 801 on the downstream side in the transport direction with respect to the fulcrum portions 810 and 811. In the present embodiment, the lower transfer roller support portion 820 is provided at the rear end portion of the stretching mechanism 801.

The lower transfer roller support portion 820 includes a hole portion 821, a hole portion 822, and a shaft portion 823. The hole portion 821 is a circular hole portion provided at the rear end portion of the stretched plate portion 808 (see FIG. 11). The hole portion 822 is a circular hole portion provided at the end portion of the stretched plate portion 804 on the downstream side in the transport direction (see FIG. 10). The hole portion 821 and the hole portion 822 face each other in the left-right direction. The shaft portion 823 extends in the left-right direction. The left end of the shaft portion 823 is inserted into the hole portion 821. The right end of the shaft portion 823 is inserted into the hole portion 822. The holes 821 and 822 rotatably support the shaft portion 823.

The lower transfer roller 270 is inserted through the shaft portion 823 and is located between the stretch plate portion 804 and the stretch plate portion 808. The shaft portion 823 is provided with a pulley 824 on the right side of the lower transport roller 270. The belt 845, which will be described later, is hung on the pulley 824.

The roller support portion 826 under the nozzle is provided in the stretching mechanism 801 on the downstream side in the transport direction with respect to the fulcrum portions 810 and 811. In the present embodiment, the nozzle lower roller support portion 826 is provided on the upstream side of the lower transport roller support portion 820 in the transport direction.

The roller support portion 826 under the nozzle includes a hole portion 827, a hole portion 828, and a shaft portion 829. The hole portion 827 is a circular hole portion provided in front of the hole portion 821 in the stretch plate portion 808 (see FIG. 11). The hole portion 828 is a circular hole portion provided in front of the hole portion 822 in the stretch plate portion 804 (see FIG. 10). The hole 827 and the hole 828 face each other in the left-right direction. The shaft portion 829 extends in the orthogonal direction. The left end of the shaft portion 829 is inserted through the hole portion 827. The right end of the shaft portion 829 is inserted through the hole portion 828. The holes 827 and 828 rotatably support the shaft portion 829.

The roller under the nozzle 275 is inserted through the shaft portion 829 and is located between the stretch plate portion 804 and the stretch plate portion 808. The nozzle lower roller 275 is located on the front side of the lower transfer roller 270. The shaft portion 829 is provided with a pulley 830 on the right side of the roller 275 under the nozzle. The belt 845, which will be described later, is hung on the pulley 830.

As shown in FIGS. 12 and 13, the first support plate 831 is provided in the stretching mechanism 801 on the downstream side in the transport direction with respect to the fulcrum portions 810 and 811 (see FIG. 11). In the present embodiment, the first support plate 831 is provided at the rear end portion of the stretching mechanism 801. The first support plate 831 is attached to the upper end of the stretch plate portion 804 and the upper end of the stretch plate portion 808 with screws. The first support plate 831 has a plate shape extending in the front-rear direction and faces the nozzle 11 when it is in an approaching position from below. The first support plate 831 supports the lower cloth 8 from below together with the second support plate 714.

The first support plate 831 includes a hole 832, a hole 833, a notch 834, and a hole 835. The hole 832 is provided at the rear end of the first support plate 831. The hole portion 832 is a rectangular hole in a plan view that penetrates in the vertical direction. The upper end of the lower transfer roller 270 is arranged in the hole 832. The hole portion 833 is a rectangular hole in a plan view penetrating in the vertical direction, and is located below the discharge port 11B of the nozzle 11 located at an approaching position. The hole 833 is provided in front of the hole 832. The upper end of the roller 275 under the nozzle is arranged in the hole 833. The lower nozzle roller 275 faces the discharge port 11B of the nozzle 11 in the vertical direction.

The cutout portion 834 is a portion in which a part of the front end of the first support plate 831 is cut out toward the rear. The upper end of the lower holding roller 909 is arranged in the notch 834. The lower transfer roller 270, the nozzle lower roller 275, and the lower holding roller 909 project upward from the first support plate 831 and come into contact with the lower cloth 8. The hole portion 835 is provided by cutting out the right front end portion of the hole portion 833 to the right and penetrates in the vertical direction. The hole portion 835 faces the lower detection portion 535 described later in a plan view.

As shown in FIG. 11, the lower transfer motor 842 is attached to the right side of the front upper part of the stretch plate portion 804. The stretch plate portion 804 is provided with a hole portion 843 in the front upper portion. The drive shaft of the lower transfer motor 842 passes through the inside of the hole portion 843. The drive shaft is connected to the first transmission mechanism 840.

The first transmission mechanism 840 is a mechanism for transmitting the power of the lower transfer motor 842 to the lower transfer roller 270 and the nozzle lower roller 275. The central portion and the rear portion of the first transmission mechanism 840 are provided inside the tubular portion 708.

The first transmission mechanism 840 includes a belt 845, a pulley 844, and the above-mentioned pulleys 824 and 830. The pulley 844 is fixed to the drive shaft of the lower transfer motor 842. The belt 845 is hung on the pulley 844. The belt 845 is located on the left side of the stretch plate portion 804. The belt 845 extends in the front-rear direction inside the tubular portion 708. The belt 845 extends slightly upward and rearward at the rear of the stretching mechanism 801 and hangs on the pulleys 824 and 830.

When the lower transfer motor 842 is driven, the lower transfer roller 270 is rotationally driven via the pulley 844, the belt 845, and the pulley 824. Further, when the lower transfer motor 842 is driven, the roller under the nozzle 275 is rotationally driven via the pulley 844, the belt 845, and the pulley 830. The diameters of the pulley 824 and the pulley 830 are the same, and the diameters of the lower transfer roller 270 and the nozzle lower roller 275 are the same. Therefore, when the lower transfer motor 842 is driven, the lower transfer roller 270 and the nozzle lower roller 275 are rotationally driven in the same direction at the same speed.

The clearance adjusting mechanism unit 818 swings the stretching mechanism 801 around the swing shaft 809 to move the lower transfer roller 270, the nozzle lower roller 275, and the first support plate 831 up and down, and the nozzle 11 with the discharge port 11B. Adjust the gap K (see FIGS. 14 and 15) with the first support plate 831. An aspect of adjusting the gap K between the discharge port 11B of the nozzle 11 and the first support plate 831 will be described. A spring (not shown) urges the front portion of the stretching plate portion 804 upward, thereby urging the front portion of the stretching mechanism 801 upward. Therefore, the contact portion 806 of the hole portion 805 of the stretch plate portion 804 abuts on the eccentric plate 803 by the urging force of the spring (see FIG. 11).

When the vertical adjustment motor 802 is driven, the eccentric plate 803 rotates via the drive shaft 812. When the eccentric plate 803 rotates, the outer peripheral portion of the eccentric plate 803 that abuts on the contact portion 806 changes. Therefore, the stretching mechanism 801 swings around the swing shaft 809 according to the distance from the drive shaft 812 to the outer circumference of the eccentric plate 803 (see arrows 849 and 850 in FIGS. 14 and 15).

When the front portion of the stretching mechanism 801 rises, the rear portion of the stretching mechanism 801 descends, and the lower transfer roller 270, the nozzle lower roller 275, and the first support plate 831 descend (see FIG. 15). In this case, the gap K between the discharge port 11B of the nozzle 11 and the first support plate 831 is widened. As shown in FIG. 15, when the distance between the drive shaft 812 and the outer circumference of the eccentric plate 803 is the shortest, the gap K between the discharge port 11B of the nozzle 11 and the first support plate 831 becomes maximum. At this time, the lower transfer roller 270 is in the roller retracted position. When in the roller retracted position, the lower transfer roller 270 separates downward from the upper transfer roller 12.

When the front portion of the stretching mechanism 801 is lowered, the rear portion of the stretching mechanism 801 is raised, and the lower transfer roller 270, the nozzle lower roller 275, and the first support plate 831 are raised (see FIG. 14). In this case, the gap K between the discharge port 11B of the nozzle 11 and the first support plate 831 becomes smaller. As shown in FIG. 14, when the distance between the drive shaft 812 and the outer circumference of the eccentric plate 803 becomes the longest, the gap K between the discharge port 11B of the nozzle 11 and the first support plate 831 becomes the minimum. At this time, the lower transfer roller 270 is in the roller contact position. When in the roller contact position, the lower transfer roller 270 contacts the upper transfer roller 12 from below. Therefore, the gap adjusting mechanism unit 818 adjusts the gap K between the nozzle 11 and the first support plate 831.

The second transmission mechanism 900 and the roller adjusting mechanism unit 901 will be described with reference to FIGS. 11 and 16 to 18. The second transmission mechanism 900 is a mechanism that transmits the power of the lower motor 902 to the lower holding roller 909. The rear portion of the second transmission mechanism 900 is provided inside the tubular portion 708.

As shown in FIG. 11, the lower motor 902 is provided on the left side of the front portion of the stretch plate portion 804. As shown in FIGS. 11 and 16 to 18, a support member 903 is provided behind the lower motor 902. The support member 903 has a box shape and is fixed in the drive unit storage unit 702. The support member 903 includes a hole 939 that penetrates in the front-rear direction.

The second transmission mechanism 900 is connected to the rear end portion of the lower motor 902. The second transmission mechanism 900 includes an arm portion 951, a roller shaft portion 908, a belt 907, a pulley 942, and a pulley 945. The arm portion 951 accommodates the belt 907 inside and is fixed to the lower motor 902. The arm portion 951 includes a connecting plate portion 952, a cylindrical portion 953, a disk portion 954, and a connecting member 937.

The connecting plate portion 952 is fixed to the rear surface of the lower motor 902. The connecting plate portion 952 has a rectangular shape when viewed from the rear. The cylindrical portion 953 is connected to the rear surface of the connecting plate portion 952. The columnar portion 953 (see FIG. 16) extends in the front-rear direction inside the hole portion 939 of the support member 903. The rear portion of the cylindrical portion 953 is located on the rear side of the support member 903. The support member 903 rotatably supports the cylindrical portion 953.

The disk portion 954 is connected to the rear end portion of the cylindrical portion 953. The disk portion 954 is circular when viewed from the rear. The diameter of the disk portion 954 is larger than the diameter of the cylindrical portion 953.

The connecting member 937 is fixed to the rear end portion of the disk portion 954. The connecting member 937 includes a base portion 905, a plate portion 904, and a plate portion 906. The base 905 is. It is fixed to the rear end of the disk portion 954 with four screws 941. The base 905 has a thickness in the anteroposterior direction. The base 905 includes a notch 936 cut out from the upper right to the lower left.

From the front end of the base 905, an arcuate plate 904 extends upward to the right. From the rear end of the base 905, an arcuate plate 906 extends upward to the right. The upper right portions of the plate portions 904 and 906 rotatably support the roller shaft portion 908. The roller shaft portion 908 extends in the front-rear direction inside the tubular portion 708. The roller shaft portion 908 fixes the lower holding roller 909 to the rear end portion. The lower holding roller 909 is located on the upstream side of the lower transport roller 270 and the nozzle 11 in the transport direction in the cylindrical portion 708. The lower holding roller 909 is a roller that has a rotation axis parallel to the transport direction and adjusts the position of the end portion of the lower cloth 8 in the left-right direction. In the present embodiment, the lower holding roller 909 adjusts the position of the lower specific end portion 8A, which is the right end portion of the lower cloth 8.

The drive shaft 910 extends to the inside of the notch 936 of the connecting member 937 through the holes provided inside the connecting plate portion 952, the cylindrical portion 953, and the disk portion 954. The front end portion of the drive shaft 910 is connected to the output shaft of the lower motor 902 and is rotated by the drive of the lower motor 902. The pulley 942 is provided at the rear end of the drive shaft 910. The pulley 945 is provided between the plate portion 904 and the plate portion 906 in the roller shaft portion 908. The belt 907 is a member that connects the drive shaft 910 and the roller shaft portion 908 and transmits the drive force of the lower motor 902 to the roller shaft portion 908. The arm 951 accommodates the belt 907 between the plate 904 and the plate 906 and inside the notch 936. The belt 907 is hung on the pulley 942 and the pulley 945. When the lower motor 902 is driven, the lower holding roller 909 rotates via the drive shaft 910, the pulley 942, the belt 907, the pulley 945, and the roller shaft portion 908.

A mechanism for moving the lower holding roller 909 up and down will be described. A plate portion 930 is provided on the upper surface of the support member 903. The plate portion 930 extends in the left-right direction. The lower air cylinder 931 is provided on the left front portion of the plate portion 930. The rod 932 of the lower air cylinder 931 extends to the right. The rod 932 is provided with a contact member 933 at the right end. The contact member 933 has a substantially L-shape in front view including a plate portion 934 and a plate portion 935. The plate portion 934 is a portion to be fixed to the rod 932. The plate portion 934 extends in the vertical direction. The plate portion 935 extends to the right from the lower end of the plate portion 934. The right end of the plate 935 abuts on the shaft 940.

The shaft portion 940 extends upward from the upper surface of the connecting plate portion 952 of the arm portion 951. As shown in FIG. 17, the connecting plate portion 952 includes a shaft portion 911 on the left surface. The shaft portion 911 extends to the left. The upper end of the spring 946 is fixed to the shaft portion 911. The lower end of the spring 946 is locked to the upper end of the bolt 947 fixed to the drive unit accommodating portion 702.

As described above, the support member 903 rotatably supports the cylindrical portion 953 of the arm portion 951. Therefore, the arm portion 951 can swing around the drive shaft 910 of the lower motor 902. The spring 946 urges the lower holding roller 909 upward via the arm portion 951 by urging the shaft portion 911 downward.

The vertical movement of the lower holding roller 909 will be described. As shown in FIG. 17, when the rod 932 retracts to the left, the lower holding roller 909 is located in the upper position (see FIGS. 5 and 17). The upper position is the position of the lower holding roller 909 that has moved upward until it comes into contact with the upper support portion 314 by the urging force of the spring 946.

As shown in FIG. 16, when the rod 932 advances to the right, the contact member 933 moves the shaft portion 940 to the right. As the shaft portion 940 moves, the arm portion 951 swings counterclockwise with respect to the drive shaft 910 against the urging force of the spring 946. Therefore, the roller shaft portion 908 moves downward, and the lower holding roller 909 moves downward to a lower position (see FIG. 18). (See arrows 943, 944 in FIGS. 17 and 18). The lower position is the position of the lower holding roller 909 separated downward from the upper support portion 314. In FIG. 18, the figure shown in FIG. 17 is overlapped by a two-dot chain line.

When the lower pinching roller 909 is in the lower position (see FIG. 18) and the rod 932 retracts to the left, the lower pinching roller 909 moves to the upper position (see FIG. 17) due to the urging force of the spring 946. (See arrows 943, 944 in FIGS. 17 and 18). In FIG. 5, the lower holding roller 909 when the lower holding roller 909 is in the upper position is shown by a solid line or a dotted line. The lower holding roller 909 when the lower holding roller 909 is in the lower position is illustrated by a two-dot chain line.

The upper support portion 314 will be described with reference to FIGS. 8, 12, 13, and 19 to 21. The upper support portion 314 supports the upper cloth 6 from below. The upper support portion 314 is provided on the upstream side in the transport direction from the nozzle 11 and above the tubular portion 708.

As shown in FIGS. 8, 12, 13, and 19, the upper support portion 314 is supported by the right rear portion of the second support plate 714. The upper support portion 314 rotates between the first position shown in FIGS. 8 and 19 and the second position shown in FIGS. 12 and 13. The first position is a position on the upstream side in the transport direction with respect to the nozzle 11. The second position is a position located on the right side of the first position, and is a position where the nozzle 11 retracts from the movement path in which the nozzle 11 moves between the approach position and the retracted position by the nozzle moving mechanism 22.

In the following description, the direction when the upper support portion 314 is in the first position will be described. As shown in FIGS. 20 and 21, the upper support portion 314 includes an extension portion 316, a protrusion 317, a recess 318, a cylindrical portion 319, a hole portion 323, a plate-shaped portion 315, a notch portion 326, and a magnet 341. The upper support portion 314 is a mounting member 324 and is rotatably attached to the second support plate 714 with the vertical direction as the axial direction. The upper support portion 314 is positioned at the first position by the positioning portion 340. The positioning unit 340 includes a magnet 341 and a positioning shaft unit 342.

The stretched portion 316 is a plate-shaped portion provided on the right side of the upper support portion 314. The protruding portion 317 is a portion that protrudes forward from the front end of the extending portion 36. The left front portion of the protruding portion 317 is arcuate. The recess 318 is a portion where the upper surface of the stretched portion 316 is recessed downward. The recess 318 is circular in a plan view. The cylindrical portion 319 is provided below the recess 318 on the bottom surface of the stretched portion 316 and extends downward. The hole portion 323 penetrates the central portion of the concave portion 318 and the cylindrical portion 319 in a vertical direction.

The mounting member 324 includes a head portion 324A and a shaft portion 324B. The head 324A is circular in a plan view. The diameter of the head 324A is larger than the diameter of the hole 323. The shaft portion 324B extends downward from the lower part of the head portion 324A. The head portion 324A is arranged inside the recess 318, and the shaft portion 324B inserts the inside of the hole portion 323. The lower part of the shaft portion 324B is fixed to the second support plate 714. The upper support portion 314 is rotatable about the shaft portion 324B between the first position and the second position.

The plate-shaped portion 315 is provided on the left side of the stretched portion 316. The plate-shaped portion 315 extends in the left-right direction and the front-back direction, and is parallel to the second support plate 714. The plate-shaped portion 315 includes an upper support surface 315A, an upstream lower surface 315B, a downstream lower surface 315C, an accommodation hole 315D, a second lower reflection portion 315E, an accommodation hole 315F, a first lower reflection portion 315G, and an upper reflection portion 315H. The upper support surface 315A is a flat surface that supports the upper cloth 6 from below. The upstream lower surface 315B forms the front portion of the lower surface of the plate-shaped portion 315, and the downstream lower surface 315C forms the rear portion of the lower surface of the upper support portion 314. The downstream lower surface 315C is above the upstream lower surface 315B.

The upper reflection portion 315H is a region on the left rear portion of the plate-shaped portion 315. The upper reflecting unit 315H can reflect the light emitted by the upper light emitting unit 635A of the upper detecting unit 635 (see FIG. 24). The accommodating hole 315D is provided on the left side of the upstream lower surface 315B. The accommodating hole 315D is a concave portion that is recessed upward and is long in the left-right direction. The second lower reflective portion 315E is housed inside the accommodating hole 315D. The second lower reflection portion 315E is located above the upstream lower surface 315B. The second lower reflecting portion 315E is a member capable of reflecting light. The second lower reflection unit 315E reflects the light emitted by the light emitting unit 545A of the terminal detection unit 545 (see FIG. 24) toward the light receiving unit 545B.

The accommodating hole 315F is provided at the center of the lower surface 315C on the downstream side in the left-right direction. The accommodating hole 315F is a concave portion that is recessed upward and is long in the left-right direction. The left-right length of the accommodation hole 315F is longer than the left-right length of the accommodation hole 315D. The first lower reflective portion 315G is housed inside the accommodating hole 315F. The first lower reflection portion 315G is located above the lower surface 315C on the downstream side. The first lower reflecting portion 315G is a member capable of reflecting light. The first lower reflection unit 315G reflects the light emitted by the lower light emitting unit 535A of the lower detection unit 535 (see FIG. 24) toward the lower light receiving unit 535B.

The cutout portion 326 is a portion in which the lower left front portion of the lower portion of the protruding portion 317 is cut out to the right rear. The right rear portion of the notch 326 is provided with a recess 328 recessed rearward. The right portion of the notch 326 is provided with a recess 329 that is recessed upward. The magnet 341 of the positioning portion 340 fits into the recess 328 and the recess 329 in the notch 326. The magnet 341 has a plate shape that is provided on the bottom surface of the upper support portion 314 and extends downward.

As shown in FIG. 8, the positioning shaft portion 342 is provided on the front side of the mounting member 324 in the right rear portion of the second support plate 714. The positioning shaft portion 342 is a metal shaft portion extending upward from the second support plate 714. As shown in FIG. 8, the magnet 341 abuts on the positioning shaft portion 342 from the right side when the upper support portion 314 is located at the first position. The positioning portion 340 positions the upper support portion 314 at the first position by the magnet 341 coming into contact with the positioning shaft portion 342 by the magnetic force of the magnet 341.

The second lower reflection unit 315E reflects the light emitted by the light emitting unit 545A of the terminal detection unit 545 (see FIG. 24) to the light receiving unit 545B when the upper support unit 314 is positioned at the first position by the positioning unit 340. It is possible. The end detection unit 545 detects the end position 201 (see FIG. 8) of the lower cloth 8 depending on whether or not the light receiving unit 545B detects the light reflected by the second lower reflection unit 315E. The end position 201 is the end portion of the lower cloth 8 on the upstream side in the transport direction.

The first lower reflection unit 315G emits light emitted by the lower light emitting unit 535A of the lower detection unit 535 (see FIG. 24) when the upper support unit 314 is positioned at the first position by the positioning unit 340, and the lower light receiving unit 535B. It is reflective to. The lower detection unit 535 determines whether or not the lower specific end portion 8A is below the first lower reflection unit 315G depending on whether or not the lower light receiving unit 535B detects the light reflected by the first lower reflection unit 315G. To detect.

When the upper support portion 314 is in the first position (see FIGS. 8 and 19), the upper support portion 314 is in front of the nozzle 11 in the approaching position and enters the nozzle 11 movable range. At this time, the nozzle 11 and the upper support portion 314 are aligned in the transport direction. When the upper support portion is in the second position, the upper support portion 314 is to the right of the nozzle 11 movable range.

As shown in FIG. 5, when the upper support portion 314 is in the first position and the lower holding roller 909 is in the upper position, the lower holding roller 909 comes into contact with the upstream lower surface 315B. The lower holding roller 909 can hold the lower cloth 8 between the upper supporting portion 314 and the lower surface 315B on the upstream side. When the lower holding roller 909 is in the lower position, the lower holding roller 909 is separated downward from the upstream lower surface 315B.

The lower detection unit 535 will be described. The lower detection unit 535 is an optical sensor arranged in a support portion provided at the rear portion of the frame 710 of the tubular portion 708, and is located below the hole portion 835 of the first support plate 831. The lower detection unit 535 is provided in the cylindrical portion 708 at a position in the front-rear direction downstream of the lower holding roller 909 in the transport direction and upstream of the lower transport roller 270 in the transport direction (see FIG. 13). It is provided on the right side of the lower roller 275 (see FIG. 13). The lower detection unit 535 detects the position of the end portion of the lower cloth 8 in the left-right direction. In the present embodiment, the position of the lower specific end portion 8A, which is the right end portion of the lower cloth 8, is detected. The CPU 101 (see FIG. 24) controls the lower motor 902 based on the position of the end portion of the lower cloth 8 detected by the lower detection unit 535, and the lower holding roller 909 determines the position of the end portion of the lower cloth 8 in the left-right direction. adjust.

When the upper support portion 314 is in the first position, the lower detection portion 535 is below the first lower reflection portion 315G (see FIG. 21) of the upper support portion 314. The lower detection unit 535 includes a lower light emitting unit 535A (see FIG. 24) and a lower light receiving unit 535B (see FIG. 24). The lower light emitting unit 535A and the lower light receiving unit 535B are at the same height position as each other. The lower light emitting portion 535A emits light toward the inner region of the first lower reflecting portion 315G. The lower light receiving unit 535B can receive light emitted by the lower light emitting unit 535A and reflected by the first lower reflecting unit 315G. The lower light emitting portion 535A and the lower light receiving portion 535B are located below the first lower reflecting portion 315G when the upper supporting portion 314 is in the first position.

When the upper support portion 314 is in the first position and the lower specific end portion 8A is below the first lower reflection portion 315G, the lower specific end portion 8A blocks the light of the lower light emitting portion 535A. At this time, the lower light receiving unit 535B does not receive the light of the lower light emitting unit 535A. When the upper support portion 314 is in the first position and the lower specific end portion 8A is not below the first lower reflection portion 315G, the first lower reflection portion 315G reflects light downward, and the lower light receiving portion 535B receives light. do. Therefore, the lower detection unit 535 can detect whether or not the lower specific end portion 8A is below the first lower reflection portion 315G. Hereinafter, in the inner region of the first lower reflection portion 315G, the position directly above the lower light emitting portion 535A is referred to as a lower detection position. The lower detection position is a position between the first lower reflection portion 315G and the lower light emitting portion 535A when the upper support portion 314 is in the first position. The lower detection position is a predetermined front-rear direction position between the discharge port 11B of the nozzle 11 in the approaching position and the lower holding roller 909, and a left-right position on the right side with respect to the lower holding roller 909. The lower detection unit 535 detects whether or not the lower specific end portion 8A is present at the lower detection position.

The terminal detection unit 545 will be described. The terminal detection unit 545 is an optical sensor arranged in a support portion provided at the rear of the frame 710 of the cylindrical portion 708, and is located below the gap where the first support plate 831 and the second support plate 714 are separated in the front-rear direction. .. The end detection unit 545 is provided on the left front side of the lower sandwiching roller 909 (see FIG. 13).

When the upper support portion 314 is in the first position, the terminal detection portion 545 is below the second lower reflection portion 315E (see FIG. 21) of the upper support portion 314. The terminal detection unit 545 includes a light emitting unit 545A (see FIG. 24) and a light receiving unit 545B (see FIG. 24). The light emitting unit 545A and the light receiving unit 545B are at the same height position as each other. The light emitting unit 545A emits light toward the inner region of the second lower reflecting unit 315E. The light receiving unit 545B can receive the light emitted by the light emitting unit 545A and reflected by the second lower reflecting unit 315E. The light emitting portion 545A and the light receiving portion 545B are located below the second lower reflecting portion 315E when the upper supporting portion 314 is in the first position.

When the upper support portion 314 is in the first position and the lower cloth 8 is below the second lower reflection portion 315E, the lower cloth 8 blocks the light of the light emitting unit 545A. At this time, the light receiving unit 545B does not receive the light of the light emitting unit 545A. When the terminal position 201 (see FIG. 8) of the lower cloth 8 passes below the second lower reflection portion 315E, the lower cloth 8 is not below the second lower reflection portion 315E. When the upper support portion 314 is in the first position and the lower cloth 8 is not below the second lower reflection portion 315E, the second lower reflection portion 315E reflects the light downward, and the light receiving portion 545B receives the light. Therefore, the end detection unit 545 can detect the end position 201 of the lower cloth 8.

The air outlet 848 will be described. As shown in FIG. 9 , the air outlet 848 is arranged on the front side of the opening 719 in the cylindrical portion 708. The air outlet 848 blows out air and removes dust adhering to the first lower reflection portion 315G or the second lower reflection portion 315E of the upper support portion 314.

As shown in FIGS. 22 and 23, the cloth adhesive device 1 includes a holding portion 971 and a holding portion 981. The holding portions 971,981 are provided above the tubular portion 708. The holding portions 971 and 981 can move up and down, and move between the holding position (see FIG. 23) and the releasing position (see FIG. 22). The holding position is a position for holding the lower cloth 8 between the cylindrical portion 708 and the holding portions 971,981. The release position is a position above the holding position to release the holding of the lower cloth 8. Hereinafter, the mechanism for moving the holding portions 971,981 in the vertical direction will be described in detail.

The nozzle lever 18 is provided with a holding air cylinder 974 at the front portion. The holding air cylinder 974 is a driving unit that moves the holding portion 971 between the holding position and the releasing position. The holding air cylinder 974 includes a rod 972 that extends downward, and the rod 972 moves up and down.

The holding portion 971 is a columnar shape extending in the vertical direction, and is provided at the lower end portion of the rod 972. The bottom surface of the holding portion 971 is parallel to the front-rear direction and the left-right direction. The holding portion 971 is located on the upstream side in the transport direction from the nozzle 11. When the rod 972 advances downward, the holding portion 971 is located at the holding position shown in FIG. 23. When the rod 972 retracts upward, the holding portion 971 is located at the release position shown in FIG. 22.

The head 5 is provided with a plate-shaped portion 989 at the rear portion. The plate-shaped portion 989 is located behind the rear end of the tubular portion 708 in the front-rear direction. The plate-shaped portion 989 extends upward and its upper end extends forward. The lower end of the plate-shaped portion 989 supports the holding air cylinder 984. The holding air cylinder 984 is a driving unit that moves the holding portion 981 between the holding position and the releasing position. The holding air cylinder 984 includes a rod 985 that extends downward, and the rod 985 moves up and down. The lower end of the rod 985 fixes the plate-shaped portion 986. The plate-shaped portion 986 extends forward from the lower end of the rod 985. The plate-shaped portion 986 fixes the plate-shaped portion 987 to the bottom surface. The plate-shaped portion 987 extends along the plate-shaped portion 986. The front end of the plate-shaped portion 987 is on the front side of the front end of the plate-shaped portion 986.

The plate-shaped portion 987 fixes the shaft portion 982 to the front end portion. The shaft portion 982 extends downward from the front end portion of the plate-shaped portion 987. The shaft portion 982 is a columnar shape extending in the vertical direction. The holding portion 981 is a columnar shape extending in the vertical direction, and is provided at the lower end portion of the shaft portion 982. The bottom surface of the holding portion 981 is parallel to the front-rear direction and the left-right direction. The holding portion 981 is located on the downstream side in the transport direction from the nozzle 11. The holding air cylinder 984 moves the rod 985 in the vertical direction. With the vertical movement of the rod 985, the plate-shaped portion 986, the plate-shaped portion 987, the shaft portion 982, and the holding portion 981 move in the vertical direction. When the rod 985 advances downward, the holding portion 981 is located at the holding position shown in FIG. 23. When the rod 985 retracts upward, the holding portion 981 is located at the release position shown in FIG. 22.

When the holding portion 971 is in the holding position, the holding portion 971 holds the lower cloth 8 between the holding portion 971 and the second support plate 714 of the tubular portion 708. The holding portion 971 is located in the front-rear direction position on the front side of the upper support portion 314 at the first position and in the left-right direction position on the left side of the upper support portion 314. When the holding portion 981 is in the holding position, the holding portion 981 holds the lower cloth 8 between the holding portion 981 and the first support plate 831 of the tubular portion 708. The holding portion 981 is located at a position in the front-rear direction on the rear side of the upper support portion 314 at the first position and at a position in the left-right direction on the left side of the upper support portion 314.

The electrical configuration of the cloth bonding device 1 will be described with reference to FIG. 24. The cloth bonding device 1 includes a control device 100. The control device 100 includes a CPU 101, a ROM 102, a RAM 103, a storage device 104, and drive circuits 105 and 106. The CPU 101 controls the operation of the cloth bonding device 1 in an integrated manner. The CPU 101 is connected to a ROM 102, a RAM 103, a storage device 104, an operation unit 19, a tread 7, a lower detection unit 535, an upper detection unit 635, a terminal detection unit 545, drive circuits 105, 106, and heaters 131, 132. The ROM 102 stores a program that executes various processes. The RAM 103 temporarily stores various types of information. The storage device 104 is non-volatile and stores various set values and the like.

The operation unit 19 includes a switch, a knee switch, an information input unit, and the like. The switch is provided at the lower part of the front surface of the head 5. The knee switch is provided at the bottom of the workbench and is operated by the operator's knee. The information input unit is provided with a liquid crystal screen and can input various information. The information input unit is provided on the workbench. The operator operates the operation unit 19 to input various instructions to the cloth bonding device 1. The operation unit 19 outputs information indicating various instructions to the CPU 101 as a detection result. The tread plate 7 is provided at the bottom of the workbench and is operated by the operator's feet. The operator inputs an instruction to start or end bonding, which will be described later, via the tread plate 7. The tread plate 7 outputs information indicating an adhesion start instruction or an adhesion end instruction to the CPU 101 as a detection result. The lower detection unit 535, the upper detection unit 635, and the terminal detection unit 545 output the detection result to the CPU 101.

By transmitting a control signal to the drive circuit 105, the CPU 101 drives and controls the lower transfer motor 842, the upper transfer motor 112, the nozzle motor 113, the pump motor 114, the vertical adjustment motor 802, the lower motor 902, and the upper motor 605, respectively. .. The CPU 101 drives and controls each of the arm air cylinder 122, the lower air cylinder 931 and the upper air cylinder 625 by transmitting a control signal to the drive circuit 106. The CPU 101 drives the heaters 131 and 132. The heater 131 heats the adhesive Z in the cartridge. The heater 132 heats the adhesive Z flowing through the flow path 21 inside the lever member 9 toward the discharge port 11B. The adhesive Z is liquefied by heating the heaters 131 and 132.

The main process will be described with reference to FIGS. 25 and 26. For example, the operator inputs an instruction to start the main process to the operation unit 19. The CPU 101 reads the program from the ROM 102 and starts the main process. Before the start of the main treatment, the cloth bonding device 1 is in the initial state. When the cloth bonding device 1 is in the initial state, the nozzle 11 is in the approaching position, the upper transfer roller 12 is in the holding position, the upper holding roller 601 is in the upper contact position, and the lower holding roller 909 is in the upper position. .. The CPU 101 performs an initialization process (S10). In the initialization process, the CPU 101 drives the heaters 131 and 132.

As shown in FIG. 25, the CPU 101 determines whether or not the roller movement instruction is detected based on the detection result of the operation unit 19 (S11). The roller movement instruction is an instruction to move the upper transfer roller 12, the upper holding roller 601 and the lower holding roller 909, respectively.

Before detecting the roller movement instruction (S11: NO), the CPU 101 determines whether or not the setting instruction is detected (S12). The setting instruction is an instruction to set a predetermined amount or a predetermined time. The predetermined amount is the distance between the upper cloth 6 and the lower cloth 8 from the detection of the terminal position 201 by the CPU 101 until the upper transfer roller 12 and the lower transfer roller 270 stop the transfer. The predetermined time is the time from when the CPU 101 detects the terminal position 201 until the upper transfer roller 12 and the lower transfer roller 270 stop the transfer. The CPU 101 repeats the processes of S11 and S12 before detecting the setting instruction (S12: NO).

When the operator inputs a setting instruction to the operation unit 19 (S12: YES), the CPU 101 sets a predetermined amount or a predetermined time based on the input of the operation unit (S13). The operator operates the information input unit of the operation unit 19 to input a predetermined amount or a predetermined time. The CPU 101 stores in the storage device 104 a predetermined amount or a predetermined time input via the information input unit of the operation unit 19. The CPU 101 returns the process to S11.

When the operator inputs a roller movement instruction to the operation unit 19 (S11: YES), the CPU 101 drives and controls the arm air cylinder 122 (see FIG. 24) to raise the upper transfer roller 12 (S14). The upper transport roller 12 rises from the pinching position to the upper retracting position.

The CPU 101 drives and controls the lower air cylinder 931 to lower the lower holding roller 909 (S15). When the lower air cylinder 931 moves the rod 932 to the right, the arm portion 951 rotates counterclockwise in the rear view, and the roller shaft portion 908 and the lower holding roller 909 are lowered. Therefore, the lower holding roller 909 moves from the upper position to the lower position (see FIGS. 5 and 18). At this time, the lower holding roller 909 is separated downward from the upstream lower surface 315B of the upper support portion 314.

The CPU 101 drives and controls the upper air cylinder 625 to raise the upper holding roller 601 (S16). The upper pinching roller 601 moves from the upper contact position to the upper separation position (see FIG. 5). The upper holding roller 601 is separated upward from the upper support surface 315A of the upper support portion 314.

The CPU 101 determines whether or not the nozzle displacement instruction has been detected based on the detection result of the operation unit 19 (S17). The nozzle displacement instruction is an instruction to displace the nozzle 11 between the approach position and the retracted position. The CPU 101 stands by before detecting the nozzle displacement instruction (S17: NO).

While the CPU 101 is on standby (S17: NO), the operator rotates the upper support portion 314 counterclockwise in a plan view and moves from the first position (see FIG. 19) to the second position (see FIG. 13). When the operator inputs the nozzle displacement instruction to the operation unit 19 (S17: YES), the CPU 101 drives and controls the nozzle motor 113 to swing the nozzle lever 18 and displaces the nozzle 11 from the approach position to the retracted position (S18). , See Figure 4). The CPU 101 inputs a predetermined pulse signal as a control signal to the drive circuit 105, so that the nozzle 11 is displaced to the retracted position. Since the upper support portion 314 is in the second position, the nozzle 11 is displaced to the retracted position without contacting the upper support portion 314. Since the nozzle lever 18 includes the holding portion 971, the holding portion 971 moves with the movement of the nozzle lever 18. When the nozzle 11 reaches the retracted position, the nozzle motor 113 is driven and stopped.

The CPU 101 determines whether or not the nozzle displacement instruction is detected based on the detection result of the operation unit 19 (S19). The CPU 101 stands by before detecting the nozzle displacement instruction (S19: NO). While the CPU 101 is on standby (S19: NO), the operator places the lower cloth 8 on the first support plate 831 and the second support plate 714. Both the lower transfer roller 270 and the nozzle lower roller 275 come into contact with the lower cloth 8 from below.

When the operator on which the lower cloth 8 is placed inputs a nozzle displacement instruction to the operation unit 19 (S19: YES), the CPU 101 drives and controls the nozzle motor 113 to displace the nozzle 11 from the retracted position to the approaching position (S20). ). When the CPU 101 inputs a predetermined pulse signal as a control signal to the drive circuit 105, the nozzle 11 is displaced to an approaching position. The discharge port 11B faces the lower cloth 8 from above.

The CPU 101 executes the gap adjustment process (S21). The gap adjusting process is a process of swinging the stretching mechanism 801 to adjust the gap K between the nozzle 11 and the first support plate 831. For example, an operator inputs an instruction to raise or lower the first support plate 831 to the operation unit 19. The CPU 101 drives and controls the vertical adjustment motor 802 (see FIG. 24) to swing the stretching mechanism 801 according to the detection result of the operation unit 19, and moves the first support plate 831 up and down (FIGS. 14 and 15). Arrow 849). The operator operates the operation unit 19 so that an appropriate gap K is formed between the lower cloth 8 and the discharge port 11B (see FIG. 7). At this time, the upper support portion 314 is in the second position, and the upper cloth 6 is not placed on the first support plate 831 and the second support plate 714. Therefore, the operator can easily visually recognize the vertical distance between the first support plate 831 and the discharge port 11B. When the operator inputs the end instruction of the gap adjustment process to the operation unit 19, the CPU 101 shifts the process to S22.

The CPU 101 determines whether or not the roller movement instruction is detected based on the detection result of the operation unit 19 (S22). Before detecting the roller movement instruction (S22: NO), the CPU 101 determines whether or not the holding unit movement instruction is detected based on the detection result of the operation unit 19 (S23). The holding unit movement instruction is an instruction in which the CPU 101 moves and controls the holding units 971 and 981. The CPU 101 repeats the processes of S22 and S23 before detecting the holding unit movement instruction (S23: NO).

When the operator inputs a holding unit movement instruction to the operation unit 19 (S23: YES), the CPU 101 drives and controls the holding air cylinders 974,984, and the holding units 971,981 are released from the release position (FIG. 22) to the holding position (FIG. 22). The movement is controlled to 23) (S24). The holding portions 971,981 descend and hold the lower cloth 8 with the tubular portion 708. The process returns to S22.

While the CPU 101 is on standby (S22: NO, S23: NO), the operator rotates the upper support portion 314 clockwise in a plan view and moves from the second position (see FIG. 13) to the first position (see FIG. 19). do. The upper support portion 314 moves to a position above the lower holding roller 909 and below the upper holding roller 601. The operator places the upper cloth 6 on the first support plate 831, the second support plate 714, and the upper support surface 315A. For example, the cloth 200 is arranged in a cylindrical shape around the tubular portion 708 (see FIG. 8). The upper cloth 6 overlaps the lower cloth 8 from above between the lower cloth roller 270 and the upper cloth roller 12. At this time, the upper specific end portion 6A overlaps the upper side of the lower specific end portion 8A.

After the upper cloth 6 is placed, when the operator inputs a roller movement instruction to the operation unit 19 (S22: YES), the CPU 101 drives and controls the arm air cylinder 122 to lower the upper transfer roller 12 to the holding position (S25). ). The upper transport roller 12 sandwiches the lower cloth 8 and the upper cloth 6 between the lower cloth roller 270 (see FIG. 5).

The CPU 101 drives and controls the lower air cylinder 931 to raise the lower holding roller 909 (S26). When the lower air cylinder 931 moves the rod 932 to the left, the arm portion 951 rotates clockwise in the rear view due to the urging force of the spring 946, and the roller shaft portion 908 and the lower holding roller 909 rise. Therefore, the lower holding roller 909 moves from the lower position to the upper position (see FIGS. 5 and 17). At this time, the lower holding roller 909 sandwiches the lower cloth 8 with the upstream lower surface 315B of the upper support portion 314 (see FIG. 5).

The CPU 101 drives and controls the upper air cylinder 625 to lower the upper holding roller 601 (S27). The upper holding roller 601 moves from the upper separation position to the upper contact position (see FIG. 5). The upper holding roller 601 sandwiches the upper cloth 6 with the upper supporting surface 315A (see FIG. 5). The CPU 101 executes the bonding process (S28).

The bonding process will be described with reference to FIG. 26. The bonding process is a process of adhering the lower specific end portion 8A of the lower cloth 8 and the upper specific end portion 6A of the upper cloth 6 with the adhesive Z. The CPU 101 determines whether or not the start instruction is detected depending on whether or not the operator operates the tread 7 with his or her foot (S51). The CPU 101 waits before detecting the start instruction (S51: NO). The start instruction is an instruction to start the bonding operation. The start instruction also includes an instruction to move the holding portions 971,981 in the holding position to the release position.

When the operator operates the tread 7 with his / her foot and inputs a start instruction (S51: YES), it is determined whether or not the holding portions 971 and 981 are in the holding position (S52). When the holding portions 971,981 are in the release position (S52: NO), the process proceeds to S54.

When the holding units 971,981 are in the holding position (S52: YES), the CPU 101 drives and controls the holding air cylinders 974,984 to move the holding units 971,981 from the holding position (FIG. 23) to the release position (FIG. 22). Movement control (S53). The holding portions 971,981 rise to release the holding of the lower cloth 8.

The CPU 101 drives and controls the upper transfer motor 112 and the lower transfer motor 842 to start driving the upper transfer roller 12 and the lower transfer roller 270 (S54). The upper transfer roller 12 and the lower transfer roller 270 cooperate to transfer the lower cloth 8 and the upper cloth 6 to the rear side (see the arrow Y in FIG. 5). The nozzle lower roller 275 rotates together with the lower transport roller 270, and auxiliary transports the lower cloth 8 toward the rear.

The CPU 101 drives and controls the pump motor 114 and starts discharging the adhesive Z (S55). The adhesive Z is liquefied by the heat generated by the heaters 131 and 132. The supply mechanism 45 supplies the adhesive Z to the nozzle 11 by driving the pump motor 114. The discharge port 11B (see FIG. 7) discharges the adhesive Z toward the lower specific end portion 8A located below. The upper transfer roller 12, the lower transfer roller 270, and the nozzle lower roller 275 convey the lower cloth 8 and the upper cloth 6 to the rear side while the discharge port 11B applies the adhesive Z to the lower specific end portion 8A.

The CPU 101 determines whether or not the lower specific end portion 8A is in the lower detection position based on the detection result of the lower detection unit 535 (S56). When the lower detection unit 535 detects that the lower specific end portion 8A is in the lower detection position, the CPU 101 determines that the lower specific end portion 8A is in the lower detection position (S56: YES). The CPU 101 drives and controls the lower motor 902 to rotationally drive the lower holding roller 909 in the first output direction (S57). The first output direction is the rotation direction in which the upper end of the lower holding roller 909 is directed to the left side. The lower holding roller 909 that rotates in the first output direction moves the lower specific end portion 8A to the left side. At this time, the lower specific end portion 8A moves in a direction deviating from the lower detection position. The CPU 101 shifts the process to S59.

When the lower detection unit 535 detects that the lower specific end portion 8A is not in the lower detection position, the CPU 101 determines that the lower specific end portion 8A is not in the lower detection position (S56: NO). The CPU 101 drives and controls the lower motor 902 to rotate and drive the lower holding roller 909 in the second output direction (S58). The second output direction is opposite to the first output direction. The lower holding roller 909 that rotates in the second output direction moves the lower specific end portion 8A to the right side. At this time, the lower specific end portion 8A moves in a direction approaching the lower detection position. The CPU 101 shifts the process to S59.

The CPU 101 determines whether or not the upper specific end portion 6A is in the upper detection position based on the detection result of the upper detection unit 635 (S59). When the upper detection unit 635 detects that the upper specific end portion 6A is in the upper detection position, the CPU 101 determines that the upper specific end portion 6A is in the upper detection position (S59: YES). The CPU 101 drives and controls the upper motor 605 to rotate and drive the upper holding roller 601 in the third output direction (S60). The third output direction is the rotation direction in which the lower end of the upper holding roller 601 is directed to the right side. The upper holding roller 601 rotating in the third output direction moves the upper specific end portion 6A to the right side. At this time, the upper specific end portion 6A moves in a direction deviating from the upper detection position. The CPU 101 shifts the process to S62.

When the upper detection unit 635 detects that the upper specific end portion 6A is not in the upper detection position, the CPU 101 determines that the upper specific end portion 6A is not in the upper detection position (S59: NO). The CPU 101 drives and controls the upper motor 605 to rotate and drive the upper holding roller 601 in the fourth output direction (S61). The fourth output direction is opposite to the third output direction. The upper pinching roller 601 rotating in the fourth output direction moves the upper specific end portion 6A to the left side. At this time, the upper specific end portion 6A moves in a direction approaching the upper detection position. The CPU 101 shifts the process to S62.

The CPU 101 determines whether or not the instruction to end the bonding process has been detected based on the detection result of the tread 7 (S62). Before detecting the end instruction of the bonding process (S62: NO), the CPU 101 determines whether or not the end position 201 of the lower cloth 8 is detected based on the detection result of the end detection unit 545 (S63). The CPU 101 repeatedly executes the processes S56 to S63 before detecting the terminal position 201 of the lower cloth 8 (S63: NO). The pump motor 114, the upper transfer motor 112, the lower transfer motor 842, the lower motor 902, and the upper motor 605 are continuously driven, and the heaters 131 and 132 continuously generate heat.

When the CPU 101 repeatedly executes S56 to S63, the lower cloth 8 after the adhesive Z adheres enters between the lower transfer roller 270 and the upper transfer roller 12. The upper transport roller 12 and the lower transport roller 270 press the lower specific end portion 8A and the upper specific end portion 6A against each other with the adhesive Z and transport the lower specific end portion 8A and the upper specific end portion 6A to the rear side. Therefore, the cloth adhesive device 1 adheres the lower specific end portion 8A and the upper specific end portion 6A via the adhesive Z.

When the CPU 101 repeatedly executes S56 to S63, the lower sandwiching roller 909 is rotationally driven in the first output direction or the second output direction. For example, when the lower specific end portion 8A curves to the left front side, the lower specific end portion 8A passes through the left side of the lower detection position as the lower cloth 8 moves backward (S56: NO). The CPU 101 rotationally drives the lower holding roller 909 in the second output direction (S58). Therefore, even when the lower specific end portion 8A is curved to the left front side, the cloth adhesive device 1 can suppress the displacement of the positional relationship between the lower specific end portion 8A passing below the discharge port 11B and the discharge port 11B in the left-right direction.

When the lower specific end portion 8A extends linearly in the front-rear direction, the CPU 101 rotationally drives the lower holding roller 909 in the first output direction and the second output direction alternately (S56: YES, S57, S56: NO, S58). ). Therefore, the cloth adhesive device 1 can suppress the displacement of the positional relationship between the lower specific end portion 8A passing below the discharge port 11B and the discharge port 11B in the left-right direction.

When the CPU 101 repeatedly executes S56 to S63, the upper holding roller 601 is rotationally driven in the third output direction or the fourth output direction. When the upper specific end portion 6A curves to the right front side, the upper specific end portion 6A passes to the right side of the upper detection position as the upper cloth 6 moves backward (S59: NO). The CPU 101 rotationally drives the upper holding roller 601 in the fourth output direction (S61). Therefore, the cloth adhesive device 1 can suppress the displacement of the positional relationship between the upper specific end portion 6A passing through the upper support portion 11A and the discharge port 11B in the left-right direction.

When the upper specific end portion 6A extends linearly in the front-rear direction, the CPU 101 rotationally drives the upper holding roller 601 alternately in the third output direction and the fourth output direction (S59: YES, S60, S59: NO, S61). Therefore, the cloth adhesive device 1 can suppress the displacement of the positional relationship between the upper specific end portion 6A passing below the discharge port 11B and the discharge port 11B in the left-right direction.

By repeatedly executing S56 to S63 by the CPU 101, the cloth adhesive device 1 adjusts the positions of the lower specific end portion 8A and the upper specific end portion 6A passing through the nozzle 11 in the left-right direction. Therefore, the left-right length of the upper specific end portion 6A that overlaps the lower specific end portion 8A in the vertical direction is within a predetermined range.

When the CPU 101 detects the end position 201 of the lower cloth 8 based on the detection result of the end detection unit 545 (S63: YES), the CPU 101 stops driving the lower motor 902 and the upper motor 605, and causes the upper holding roller 601 and the lower holding roller 601. The position adjustment of the lower cloth 8 by the 909 is stopped (S64).

The CPU 101 determines whether or not the upper transfer roller 12 and the lower transfer roller 270 are driven for a predetermined amount or a predetermined time set in S13 (S65). When the upper transfer roller 12 and the lower transfer roller 270 are not driven by the CPU 101 for a predetermined amount or a predetermined time set in S13 (S65: NO), the process returns to S65. Therefore, the CPU 101 continues to convey and bond the upper cloth 6 and the lower cloth 8.

When the upper transfer roller 12 and the lower transfer roller 270 are driven by the CPU 101 for a predetermined amount or a predetermined time set in S13 (S65: YES) , the CPU 101 stops driving the upper transfer motor 112 and the lower transfer motor 842. The transportation of the upper cloth 6 and the lower cloth 8 is stopped (S66). The CPU 101 stops driving the pump motor 114 (S67). The CPU 101 stops the ejection of the adhesive Z from the nozzle 11 (S67). The CPU 101 ends the bonding process and ends the main process.

When the CPU 101 repeatedly executes S56 to S63 and the operator operates the tread 7 with his / her foot to input an instruction to end the bonding process (S62: YES), the CPU 101 has an upper transfer motor 112, a lower transfer motor 842, and a pump motor. 114, the lower motor 902, and the upper motor 605 are stopped (S68). The CPU 101 ends the bonding process and ends the main process.

As described above, the cloth adhesive device 1 executes the process. In the present embodiment, the tubular portion 708 is provided with a lower transfer roller 270 at the rear end portion. The drive unit 800 is located on the front side of the cylindrical portion 708. The drive unit 800 includes a lower transfer motor 842 and a lower motor 902. Therefore, in the cloth bonding device 1, the drive unit 800 can be arranged at a position away from the lower transfer roller 270 and the lower holding roller 909, and the diameter of the tubular portion 708 can be reduced. Therefore, in the cloth bonding device 1, it becomes easy to arrange the tubular portion 708 inside the tubular cloth 200, and the positions of the upper cloth 6 and the lower cloth 8 are less likely to shift. Therefore, the cloth bonding device 1 makes it easy to form the cloth 200 into a tubular shape, the bonding quality is stable, and the work efficiency is improved.

The gap adjusting mechanism portion 818 is provided on the upstream side of the swing shaft 809 of the stretching mechanism 801. The stretching mechanism 801 swings around the swing shaft 809. The stretching mechanism 801 adjusts the gap between the nozzle 11 and the first support plate 831 by moving the first support plate 831 and the lower transfer roller 270 up and down. At this time, the lower transfer roller 270 moves up and down between the roller contact position (see FIG. 14) and the roller retract position (see FIG. 15). The vertical adjustment motor 802 is a drive source for the gap adjusting mechanism unit 818, and the gap between the nozzle 11 and the first support plate 831 can be adjusted by swinging the stretching mechanism 801. Further, since the stretching mechanism 801 extends in the tubular portion 708 in the transport direction, the diameter of the tubular portion 708 can be reduced as compared with the case where the stretching mechanism 801 is provided at a position different from that of the tubular portion 708. Further, the vertical adjustment motor 802 is included in the drive unit 800 located on the upstream side in the transport direction in the tubular unit 708. Therefore, in the cloth bonding device 1, the vertical adjustment motor 802 can be arranged at a position away from the lower transfer roller 270 and the lower holding roller 909, and the diameter of the tubular portion 708 can be reduced. Therefore, in the cloth bonding device 1, it becomes easy to arrange the tubular portion 708 inside the tubular cloth 200, the bonding quality is stable, and the work efficiency is improved.

The roller under the nozzle 275 is rotatably supported by the stretching mechanism 801 and faces the discharge port 11B of the nozzle 11. The roller under the nozzle 275 projects upward from the first support plate 831 and comes into contact with the lower cloth 8. Since the nozzle lower roller 275 on the lower side of the discharge port 11B conveys the lower cloth 8, the lower cloth 8 is located between the position where the lower transfer roller 270 and the upper transfer roller 12 convey and the position below the discharge port 11B. It is hard to grow. Therefore, in the cloth bonding device 1, the application of the adhesive to the lower cloth 8 is stable, and the stability of the quality of the lower cloth 8 and the upper cloth 6 bonded to each other can be ensured.

Effect of claim 4 The second support plate 714 is provided at the upper end of the frame 710 of the tubular portion 708, and supports the lower cloth 8 from below. The upper support portion 314 is provided on the upstream side in the transport direction from the nozzle 11 and above the tubular portion 708, and supports the upper cloth 6 from below. Therefore, in the cloth bonding device 1, the upper support portion 314 for supporting the upper cloth 6 can be provided on the tubular portion 708, and the configuration can be made compact. The cloth bonding device 1 can stably convey the upper cloth 6 and the lower cloth 8 when they are overlapped and conveyed by the upper transfer roller 12 and the lower transfer roller 270.

The upper support portion 314 is attached to the end portion of the second support plate 714 on the downstream side in the transport direction. In this case, the mounting structure of the upper support portion 314 can be made more compact. The cloth bonding device 1 can stably convey the upper cloth 6 and the lower cloth 8 when they are overlapped and conveyed by the upper transfer roller 12 and the lower transfer roller 270.

The nozzle moving mechanism 22 moves the nozzle 11 between the approaching position and the retracting position (see FIG. 4). The upper support portion 314 is rotatable between the first position and the second position. Therefore, when the nozzle 11 is moved between the approach position and the retracted position, by arranging the upper support portion 314 at the second position, it is possible to prevent the upper support portion 314 from interfering with the moving nozzle 11.

The second position of the upper support portion 314 is a position on one or the other side in the left-right direction from the first position. In the present embodiment, as an example, the second position is the position on the right side of the first position. Since the second position is displaced in the left-right direction with respect to the first position, it is easy for the operator to confirm the movement path of the nozzle 11 that moves between the approach position and the retracted position.

The positioning unit 340 positions the upper support unit 314 at the first position. The first lower reflection unit 315G can reflect the light from the lower light emitting unit 535A of the lower detection unit 535 when the upper support unit 314 is positioned at the first position by the positioning unit 340. The lower detection unit 535 detects the position of the end portion of the lower cloth 8 depending on whether or not the lower light receiving unit 535B detects the light reflected by the first lower reflection unit 315G. Since there is a positioning portion 340, the position of the upper support portion 314 is stable at the first position. Therefore, as compared with the case where the positioning unit 340 is not provided, the first lower reflection unit 315G can be more reliably irradiated with the light from the lower light emitting unit 535A. Therefore, in the cloth bonding device 1, the accuracy of adjusting the position of the end portion of the lower cloth 8 by the CPU 101 is improved.

The positioning unit 340 includes a positioning shaft unit 342 and a magnet 341. Therefore, the magnet 341 can position the position of the upper support portion 314 to the first position. Therefore, it is possible to reduce the possibility that the upper support portion 314 moves from the first position during the transportation of the upper cloth 6, and it is possible to reduce the adhesion defect during the adhesion work.

The second transmission mechanism 900 includes a roller shaft portion 908, a belt 907, and an arm portion 951 (see FIG. 17). The drive unit 800 includes a lower air cylinder 931 that moves the roller shaft portion 908 downward and moves the lower holding roller 909 downward by swinging the arm portion 951 against the urging force of the spring 946. The lower air cylinder 931 moves the lower holding roller 909 downward, so that the lower holding roller 909 and the upper support portion 314 interfere with each other when the upper support portion 314 moves between the first position and the second position. Can be prevented.

The end detection unit 545 is provided in the cylindrical portion 708. When the end detection unit 545 detects the end position 201 of the lower cloth 8 (S63: YES), the CPU 101 stops the ejection of the adhesive from the nozzle 11 (S67). Therefore, the cloth adhesive device 1 is operated by an operator to stop the ejection of the adhesive from the nozzle 11, and the work efficiency is improved.

The second lower reflection portion 315E is provided on the bottom surface of the upper support portion 314. The terminal detection unit 545 detects the terminal position 201 of the lower cloth 8 depending on whether or not the light receiving unit 545B detects the light emitted by the light emitting unit 545A and reflected by the second lower reflecting unit 315E. The second lower reflecting unit 315E does not reflect the light when the lower cloth 8 is on the path of the light from the light emitting unit 545A, and reflects the light when the lower cloth 8 is not on the path of the light. The end position of the lower cloth 8 can be detected. Since the second lower reflection portion 315E is provided on the upper support portion 314, the configuration for detecting the end position 201 of the lower cloth 8 can be made more compact than in the case where the second lower reflection portion 315E is provided separately from the upper support portion 314.

When the end detection unit 545 detects the end position 201 of the lower cloth 8 (S63: YES), the CPU 101 stops the transfer of the upper cloth 6 and the lower cloth 8 by the upper transfer roller 12 and the lower transfer roller 270 (S66). .. Therefore, the work efficiency of the cloth bonding device 1 is improved as compared with the case where the worker operates the cloth bonding device 1 to stop the transportation of the upper cloth 6 and the lower cloth 8.

When the end detection unit 545 detects the end position 201 of the lower cloth 8 (S63: YES), the CPU 101 stops the position adjustment of the lower cloth 8 by the lower holding roller 909 (S64). Therefore, the work efficiency of the cloth bonding device 1 is improved as compared with the case where the worker operates the cloth bonding device 1 to stop the driving of the lower sandwiching roller 909.

After the end detection unit 545 detects the end position 201 of the lower cloth 8 (S63: YES), the CPU 101 drives the upper transfer roller 12 and the lower transfer roller 270 by a predetermined amount or for a predetermined time (S65), and then the upper transfer roller. 12 and the lower transfer roller 270 are stopped (S66). Therefore, the cloth bonding device 1 can stop the transportation of the upper cloth 6 and the lower cloth 8 after the terminal portion of the lower cloth 8 is surely bonded, and the work efficiency is improved.

The CPU 101 can set a predetermined amount or a predetermined time until the upper transfer roller 12 and the lower transfer roller 270 are stopped in S65 and S66 (S13). Therefore, a predetermined amount or a predetermined time for driving the upper transfer roller 12 and the lower transfer roller 270 until the transfer of the upper cloth 6 and the lower cloth 8 is stopped can be set. Therefore, the cloth bonding device 1 can stop the transportation of the upper cloth 6 and the lower cloth 8 after the terminal portion of the lower cloth 8 is surely bonded, and the work efficiency is improved.

The cloth transport mechanism 701 of the cloth bonding device 1 includes a lower transport roller 270, a tubular portion 708, a lower holding roller 909, a drive unit 800, a lower detection unit 535, a first transmission mechanism 840, a second transmission mechanism 900, and the like. The cylindrical portion 708 is provided with a lower transport roller 270 at the rear end portion. The drive unit 800 is located on the front side of the cylindrical portion 708. The drive unit 800 includes a lower transfer motor 842 and a lower motor 902. Therefore, in the cloth transport mechanism 701, the drive unit 800 can be arranged at a position away from the lower transport roller 270 and the lower pinch roller 909, and the diameter of the tubular portion 708 can be reduced. Therefore, in the cloth transport mechanism 701, the tubular portion 708 is easily arranged inside the tubular cloth 200, and the positions of the upper cloth 6 and the lower cloth 8 are less likely to shift. Therefore, the cloth bonding device 1 provided with the cloth transport mechanism 701 can easily form the cloth 200 into a tubular shape, the bonding quality is stable, and the work efficiency is improved.

The cloth bonding device 1 includes holding portions 971,981 that move between the holding position and the releasing position. The cloth adhesive device 1 can hold the lower cloth 8 and release the holding of the lower cloth 8 by the holding portions 971 and 981. Since the lower cloth 8 can be held, it is possible to prevent the position of the lower cloth 8 from being displaced due to the weight of the cloth or the like after the lower cloth 8 is arranged on the tubular portion 708. Therefore, the cloth bonding device 1 can prevent the positions of the lower cloth 8 and the upper cloth 6 from being displaced from each other, and can prevent deterioration of the bonding quality.

The holding portion 971 is provided on the upstream side in the transport direction from the nozzle 11. Therefore, the lower cloth 8 can be held and the holding of the lower cloth 8 can be released by the holding portion 971 provided on the upstream side in the transport direction from the nozzle 11. Since the holding portion 971 is on the upstream side in the transport direction from the nozzle 11, it is possible to prevent the lower cloth 8 on the upstream side in the transport direction from the nozzle 11 from being displaced due to the weight of the cloth or the like. Therefore, the cloth bonding device 1 can prevent the positions of the lower cloth 8 and the upper cloth 6 from being displaced from each other, and can prevent deterioration of the bonding quality. Since the holding portion 971 is on the upstream side in the transport direction from the nozzle 11, the operator can easily visually recognize the holding state of the lower cloth 8 by the holding portion 971.

The holding portion 981 is provided on the downstream side in the transport direction from the nozzle 11. Therefore, the lower cloth 8 can be held and the lower cloth 8 can be released by the holding portion 981 provided on the downstream side in the transport direction from the nozzle 11. Since the holding portion 981 is on the downstream side in the transport direction from the nozzle 11, it is possible to prevent the lower cloth 8 on the downstream side in the transport direction from the nozzle 11 from being displaced due to the weight of the cloth or the like. Therefore, the cloth bonding device 1 can prevent the positions of the lower cloth 8 and the upper cloth 6 from being displaced from each other, and can prevent deterioration of the bonding quality.

The nozzle lever 18 extends in the vertical direction and movably supports the nozzle 11 between the approaching position and the retracting position (see FIG. 4). A holding air cylinder 974 that moves the holding portion 971 between the holding position and the releasing position is provided on the nozzle lever 18. Since the holding air cylinder 974 is provided on the nozzle lever 18, the holding portion 971 does not interfere with the nozzle 11 even if the nozzle 11 is moved between the approaching position and the retracting position. The cloth bonding device 1 can simplify the structure for attaching the holding air cylinder 974 as compared with the case where the holding air cylinder 974 and the nozzle lever 18 are separately provided.

The holding air cylinder 974 includes a rod 972 that extends downward and moves up and down. The holding portion 971 is provided at the lower end of the rod 972, and is located at the holding position when the rod 972 advances downward, and at the release position when the rod 972 retracts upward. In this case, the cloth bonding device 1 can make the configuration of the holding portion 971 and the holding air cylinder 974 compact.

The CPU 101 moves and controls the holding units 971 and 981 to the holding position and the releasing position (S24, S53). The operation unit 19 and the tread plate 7 input an instruction to move and control the holding units 971 and 981 by the CPU 101. In this case, the cloth adhesive device 1 can move the holding portions 971 and 981 when instructed by the operating portion 19 and the tread plate 7. Therefore, the operator can instruct the holding unit 971,981 to hold and release the lower cloth 8 at an arbitrary timing.

The cloth bonding device 1 includes an upper transfer motor 112 which is a drive unit which is a power source of the upper transfer roller 12, and a lower transfer motor 842 which is a drive unit which is a power source of the lower transfer roller 270. The CPU 101 controls the upper transfer motor 112 and the lower transfer motor 842 to drive the upper transfer roller 12 and the lower transfer roller 270, and conveys the upper cloth 6 and the lower cloth 8 in the transfer direction (S55). When the holding unit 971,981 is in the holding position and an instruction is input to the tread plate 7 which is an indicating unit (S51: YES), the CPU 101 moves and controls the holding units 971,981 to the release position (S53). ). The CPU 101 transports the upper cloth 6 and the lower cloth 8 in the transport direction after the holding portions 971 and 981 are moved to the release position by S53 (S55). In this case, when the upper cloth 6 and the lower cloth 8 are instructed to be conveyed, the upper cloth 6 and the lower cloth 8 may be conveyed after the holding of the lower cloth 8 is released by the holding portions 971 and 981. can. Therefore, the operator does not need to perform another operation for transporting the upper cloth 6 and the lower cloth 8 after the holding of the lower cloth 8 by the holding portions 971 and 981 is released. Therefore, work efficiency is improved.

In the above description, the stretching mechanism 801 is an example of the stretching portion of the present invention. The lower transfer motor 842 is an example of the first drive unit of the present invention. The lower motor 902 is an example of the second drive unit of the present invention. The vertical adjustment motor 802 is an example of the third drive unit of the present invention. The lower air cylinder 931 is an example of the fourth drive unit of the present invention. The upper transfer roller 12 is an example of the first transfer roller of the present invention. The lower transfer roller 270 is an example of the second transfer roller of the present invention. The lower holding roller 909 is an example of the position control roller of the present invention. The lower detection unit 535 is an example of the end detection unit of the present invention. The lower light emitting unit 535A is an example of the first light emitting unit of the present invention. The lower light receiving unit 535B is an example of the first light receiving unit of the present invention. The first lower reflection unit 315G is an example of the first reflection unit of the present invention. The second lower reflecting unit 315E is an example of the second reflecting unit of the present invention. The roller shaft portion 908 is an example of the drive shaft and the roller shaft portion of the present invention. The spring 946 is an example of the urging member of the present invention. The light emitting unit 545A is an example of the second light emitting unit of the present invention. The light receiving unit 545B is an example of the second light receiving unit of the present invention. The CPU 101 that executes S56 to S61 is an example of the adjustment control unit of the present invention. The CPU 101 that performs the processes of S63 and S68 is an example of the discharge stopping means of the present invention. The CPU 101 that executes S63, S65, and S66 is an example of the transport stop control means of the present invention. The CPU 101 that executes S63 and S64 is an example of the position stopping means of the present invention. The CPU 101 that executes S13 is an example of the setting means of the present invention.

The present invention is not limited to the above examples. For example, the CPU 101 may not be able to set a predetermined amount or a predetermined time until the upper transfer roller 12 and the lower transfer roller 270 are stopped in S65 and S66. After the end detection unit 545 detects the end position 201 of the lower cloth 8 (S63: YES), the CPU 101 does not drive the upper transfer roller 12 and the lower transfer roller 270 by a predetermined amount or for a predetermined time, and then the upper transfer roller 12 And the lower transfer roller 270 may be stopped (S66).

The cylindrical portion 708 does not have to include the termination detection portion 545. At this time, when the end detection unit 545 detects the end position 201 of the lower cloth 8 (S63: YES), the CPU 101 executes a process (S64) of stopping the position adjustment of the lower cloth 8 by the lower holding roller 909. It does not have to be. When the end detection unit 545 detects the end position 201 of the lower cloth 8 (S63: YES), the CPU 101 stops the transfer of the upper cloth 6 and the lower cloth 8 by the upper transfer roller 12 and the lower transfer roller 270 (S66). ) Does not have to be executed. When the end detection unit 545 detects the end position 201 of the lower cloth 8 (S63: YES), the CPU 101 does not have to execute the process (S67) of stopping the ejection of the adhesive from the nozzle 11. The upper support portion 314 does not have to include the second lower reflection portion 315E.

The first transmission mechanism 840 may have a configuration different from that of the above embodiment, and may transmit the driving force of the lower transfer motor 842 to the lower transfer roller 270. For example, the first transmission mechanism 840 is provided with a rotating shaft extending in the front-rear direction instead of the belt 845, and a bevel gear is provided on the rotating shaft. If the drive shaft of the lower transfer motor 842 is provided with a bevel gear instead of the pulley 844, and the shaft portions 823 and 829 are provided with a bevel gear instead of the pulleys 824 and 830, they are configured to mesh with the bevel gear of the rotating shaft. good. The second transmission mechanism 900 may transmit the driving force of the lower motor 902 to the lower sandwiching roller 909 with a configuration different from that of the above embodiment.

The positioning unit 340 may have a different configuration from the positioning shaft unit 342 and the magnet 341. For example, the positioning portion 340 is provided with a pin that can move up and down instead of the magnet 341, and is provided with a hole portion into which the pin can be inserted instead of the positioning shaft portion 342. When the upper support portion 314 is in the first position, the pin may be moved downward and inserted into the hole portion for positioning. The positioning unit 340 may not be provided. The second position of the upper support portion 314 may be on the left side of the first position. The upper support portion 314 may not be rotatable around the shaft portion 324B, but may be linearly movable to the right. The upper support portion 314 does not have to move between the first position and the second position. The position of the upper support portion 314 may be different from that of the above embodiment. The upper support portion 314 may be provided on the frame 710. The upper support portion 314 may be provided integrally with the nozzle 11. At this time, when the nozzle 11 is moved between the approach position and the retracted position, the upper support portion 314 also moves, so that it is possible to prevent the upper support portion 314 from interfering with the moving nozzle 11. The upper support portion 314 may not be provided.

The second support plate 714 does not have to be a part of the support plate 705. It may be separated from the support plate 705 in front of the second support plate 714. The cloth bonding device 1 may support the lower cloth 8 with a configuration different from that of the second support plate 714.

The nozzle moving mechanism 22 may not be provided, and the nozzle 11 may not be able to move between the approaching position and the retracting position. The roller under the nozzle 275 may not be provided. The gap adjusting mechanism portion 818 is not provided, and the lower transfer roller 270, the first support plate 831, and the nozzle lower roller 275 do not have to move up and down. The drive unit 800 may include at least a lower transfer motor 842 and a lower motor 902. The drive unit 800 may be located on the rear end side of the cylindrical portion 708. At this time, the tubular portion 708 may extend downstream of the lower transport roller 270 in the transport direction, and may include a lower transport roller 270, a nozzle lower roller 275, and a lower pinching roller 909 on the front end side.

The discharge port 11B of the nozzle 11 is formed on the lower surface of the nozzle 11 and discharges the adhesive Z toward the lower cloth 8. The discharge port of the nozzle may discharge the adhesive Z toward the upper cloth 6. At this time, the discharge port may be formed on the surface of the nozzle that supports the upper cloth 6.

The CPU 101 does not have to control the movement of the holding units 971 and 981 between the holding position and the releasing position. At this time, the holding portions 971,981 may be manually moved to the holding position and the releasing position by the operator. The configuration for moving the holding portions 971,981 may be different from the above-described embodiment. For example, the holding portions 971 and 981 may be provided with a solenoid, a motor, or the like instead of the holding air cylinders 974 and 984. The holding portions 971 and 981 may be on the left side of the nozzle 11. It is not necessary to provide one of the holding portions 971 and 981.

The CPU 101 drives and controls the vertical adjustment motor 802 to drive the gap adjustment mechanism unit 818, swings the stretching mechanism 801 and moves the first support plate 831 up and down, and an appropriate gap K is the lower cloth 8 and the discharge port 11B. It was adjusted to occur during (see FIG. 6) (S21). When the CPU 101 detected the holding unit movement instruction (S23: YES), the CPU 101 lowered the holding unit S24 to the holding position (S24). However, the main process of the CPU 101 may be modified as shown in FIG. 27.

As shown in FIG. 27, the CPU 101 does not execute the processes of S23 and S24 (see FIG. 25), but executes the processes of S81 to S84. Hereinafter, the main processing of FIG. 27 will be described. Since the processes other than S81 to S84 in FIG. 27 are the same as the main processes shown in FIG. 25, the description thereof will be omitted. The clearance adjusting mechanism unit 818 swings the stretching mechanism 801 around the swing shaft 809, and moves the lower transfer roller 270 up and down between the roller contact position (see FIG. 14) and the roller retracting position (see FIG. 15). Move. When the lower transfer roller 270 moves to the roller retracting position, the nozzle lower roller 275 also moves downward (see the nozzle lower roller 275 shown by the two-dot chain line in FIG. 5). The operator operates the operation unit 19 and inputs an instruction to move the lower transfer roller 270 from the roller contact position to the roller retract position. When the operation unit 19 is operated (S81: YES), the CPU 101 drives and controls the vertical adjustment motor 802 to drive and control the gap adjustment mechanism unit 818, and changes the lower transfer roller 270 from the roller contact position to the roller retract position. (S82). The operator can easily rearrange the lower cloth 8. The operator operates the operation unit 19 after completing the rearrangement of the lower cloth 8. The CPU 101 returns to S83 and waits until the operation unit 19 is operated (S83: NO). When the operation unit 19 is operated (S83: YES), the CPU 101 drives and controls the vertical adjustment motor 802 to drive and control the gap adjustment mechanism unit 818, and changes the lower transfer roller 270 from the roller retracted position to the roller contact position. (S84). The CPU 101 shifts the processing to S22. Even when the operator does not operate the operation unit 19 in S81 (S81: NO), the CPU 101 shifts the processing to S21. The CPU 101 executes the gap adjustment process (S21), and when the operator inputs an instruction to end the gap adjustment process to the operation unit 19, the CPU 101 shifts the process to S22. The CPU 101 stands by before detecting the roller movement instruction (S22: NO). When the CPU 101 detects the roller movement instruction (S22: YES), the CPU 101 executes the processing after S25.

In this case, when the gap adjusting mechanism portion 818 moves the lower transfer roller 270 to the roller contact position, the holding portions 971 and 981 move to the holding position. Therefore, when the lower transport roller 270 sandwiches the cloth with the upper transport roller 12, the lower cloth 8 can be held by the holding portions 971 and 981. Therefore, the operator does not need to perform a single operation for holding the lower cloth 8 by the holding portions 971 and 981. Therefore, work efficiency is improved.

1 Cloth adhesive device 6 Upper cloth 7 Tread plate 8 Lower cloth 11 Nozzle 11B Discharge port 12 Upper transfer roller 18 Nozzle lever 19 Operation unit 22 Nozzle movement mechanism 101 CPU
201 Termination position 270 Lower transfer roller 314 Upper support section 315E Second lower reflection section 315G First lower reflection section 340 Positioning section 341 Magnet 342 Shaft section 535 Lower detection section 535A Lower light emitting section 535B Lower light receiving section 545 Termination detection section 545 Termination detection Part 545A Light emitting part 545B Light receiving part 701 Cloth transport mechanism 701 Cloth transport mechanism 708 Cylindrical part 710 Frame 714 Second support plate 800 Drive part 801 Stretching mechanism 802 Vertical adjustment motor 809 Shaking shaft 810, 81 Abutment part 812 Drive shaft 818 Gap Adjustment mechanism 820 Lower transfer roller support 831 First support plate 840 First transmission mechanism 842 Lower transfer motor 900 Second transmission mechanism 901 Roller adjustment mechanism 902 Lower motor 909 Lower holding roller 931 Lower air cylinder 951 Arm 971,981 Holding part 972,985 Rod 974,984 Holding air cylinder

Claims (17)

A nozzle located between the lower cloth that moves in the transport direction and the upper cloth that overlaps the lower cloth from above and has a discharge port for discharging the adhesive.
A first transport roller provided on the downstream side in the transport direction from the nozzle and transporting the lower cloth and the upper cloth to which the adhesive is attached in the transport direction.
A second transfer roller provided below the first transfer roller and in cooperation with the first transfer roller to transfer the upper cloth and the lower cloth in the transfer direction.
A cylindrical portion extending along the transport direction and having the second transport roller at one end in the transport direction is provided.
In a cloth adhesive device that discharges the adhesive from the nozzle and conveys the upper cloth and the lower cloth in the transport direction to bond the upper cloth and the lower cloth .
The cylindrical portion is provided on the upstream side of the second transport roller and the nozzle in the transport direction, has a rotation axis parallel to the transport direction, and has the lower portion in an orthogonal direction orthogonal to the transport direction and the vertical direction. A position control roller that adjusts the position of the edge of the cloth,
The cylindrical portion is provided on the other end side opposite to the one end portion, and includes a first drive portion that serves as a power source for the second transport roller and a second drive portion that serves as a power source for the position control roller. The drive unit and
An end portion detection provided in the cylindrical portion on the downstream side in the transport direction from the position control roller and on the upstream side in the transport direction from the second transport roller to detect the position of the end portion of the lower cloth in the orthogonal direction. Department and
Adjustment control that controls the second drive unit based on the position of the end portion of the lower cloth detected by the end detection unit, and adjusts the position of the end portion of the lower cloth in the orthogonal direction by the position control roller. Department and
A first transmission mechanism provided inside the cylindrical portion and transmitting the power of the first drive portion to the second transfer roller.
A cloth bonding device provided inside the tubular portion and provided with a second transmission mechanism for transmitting the power of the second drive portion to the position control roller. A stretched portion extending inside the tubular portion in the transport direction,
A fulcrum portion provided in the tubular portion and supporting the extended portion so as to be swingable around a swing axis extending in the orthogonal direction.
A roller support portion provided on the downstream side of the fulcrum portion in the extension portion in the transport direction to support the second transport roller, and a roller support portion.
A first support plate provided in the stretched portion on the downstream side of the fulcrum portion in the transport direction, facing the nozzle, and supporting the lower cloth.
By providing the stretched portion on the upstream side in the transport direction from the fulcrum portion and swinging the stretched portion around the swing shaft to move the second transport roller and the first support plate up and down. A gap adjusting mechanism for adjusting the gap between the nozzle and the first support plate is provided.
The cloth bonding device according to claim 1, wherein the drive unit includes a third drive unit that is a drive source of the gap adjusting mechanism unit. A roller under the nozzle that is rotatably supported by the stretched portion and faces the discharge port of the nozzle is provided.
The cloth bonding device according to claim 2, wherein the roller under the nozzle projects upward from the first support plate and comes into contact with the lower cloth. A second support plate provided at the upper end of the frame of the cylindrical portion and supporting the lower cloth from below, and
The invention according to any one of claims 1 to 3, further comprising an upper support portion provided on the upstream side in the transport direction from the nozzle and above the tubular portion to support the upper cloth from below. Cloth adhesive device. The cloth adhesive device according to claim 4, wherein the upper support portion is attached to an end portion of the second support plate on the downstream side in the transport direction. A nozzle moving mechanism for moving the nozzle between an approaching position approaching the first transport roller and a retracting position on the upstream side of the transport direction from the approaching position is provided.
The upper support portion is located at a first position located upstream of the transport direction with respect to the nozzle and at one end or the other end side in the orthogonal direction with respect to the first position. The cloth bonding apparatus according to claim 4 or 5, wherein the cloth adhesive device can be rotationally moved between a moving path that moves between the approaching position and the retracting position and a second position that retracts from the moving path. The cloth bonding apparatus according to claim 6, wherein the second position is a position on one or the other side in the orthogonal direction with respect to the first position. The end detection unit is
A first light emitting part provided inside the cylindrical part and emitting light upward,
The first light emitting unit is provided with a first light receiving unit that receives light emitted by the first light emitting unit.
A positioning unit that positions the upper support unit at the first position,
It is provided on the bottom surface of the upper support portion, and includes a first reflecting portion that reflects the light emitted by the first light emitting portion toward the first light receiving portion.
The first reflecting portion can reflect the light when the upper support portion is positioned at the first position by the positioning portion.
6. The end portion detecting unit is characterized in that it detects the position of the end portion of the lower cloth depending on whether or not the first light receiving unit detects the light reflected by the first reflecting unit. Or the cloth adhesive device according to 7. The positioning unit is
A positioning shaft portion, which is a metal shaft portion extending upward from the second support plate,
A magnet provided on the bottom surface of the upper support portion, extending downward, and abutting on the positioning shaft portion when the upper support portion is located at the first position.
The cloth adhesive device according to claim 8, wherein the cloth adhesive device is provided. The second transmission mechanism is
A roller shaft portion that extends in the transport direction inside the tubular portion and rotatably supports the position control roller at the downstream end portion in the transport direction.
A belt that connects the roller shaft portion and the output unit of the second drive unit and transmits the driving force of the output unit of the second drive unit to the roller shaft portion.
The belt is housed inside, and an arm portion fixed to the second drive portion is provided.
The arm portion can swing around the output portion of the second drive portion, and can be swung around the output portion.
A urging member for urging the position control roller upward via the arm portion is provided.
The position control roller moves upward until it comes into contact with the upper support portion by the urging force of the urging member.
The drive unit includes a fourth drive unit that moves the roller shaft portion downward and moves the position control roller downward by swinging the arm portion against the urging force of the urging member. The cloth adhesive device according to any one of claims 6 to 9, wherein the cloth adhesive device is characterized in that. A terminal detection unit provided in the cylindrical portion, located on the upstream side of the nozzle in the transport direction, and detecting a terminal position which is an end portion of the lower cloth on the upstream side in the transport direction.
One of claims 3 to 10, wherein the end detection unit includes a discharge stop means for stopping the discharge of the adhesive from the nozzle when the end position of the lower cloth is detected. The cloth gluing device described. The termination detector is
A second light emitting part provided inside the cylindrical part and emitting light upward,
A second light receiving unit that receives the light emitted by the second light emitting unit is provided.
It is provided on the bottom surface of the upper support portion, and includes a second reflecting portion that reflects the light emitted by the second light emitting portion toward the second light receiving portion.
11. The eleventh aspect of the present invention, wherein the terminal detecting unit detects the terminal position of the lower cloth depending on whether or not the second light receiving unit detects the light reflected by the second reflecting unit. Cloth gluing device. When the end detection unit detects the end position of the lower cloth, it is provided with a transfer stop control means for stopping the transfer of the upper cloth and the lower cloth by the first transfer roller and the second transfer roller. The cloth bonding apparatus according to claim 11 or 12. 13. The cloth according to claim 13, wherein the end detection unit includes a position stop control means for stopping the position adjustment of the lower cloth by the position control roller when the end position of the lower cloth is detected. Adhesive device. In the transport stop control means, after the terminal detection unit detects the terminal position of the lower cloth, the first transport roller and the second transport roller are driven by a predetermined amount or for a predetermined time, and then the first transport roller and the first transport roller and the second transport roller are driven. The cloth bonding apparatus according to claim 13, wherein the second transport roller is stopped. The cloth according to claim 15, wherein the transport stop control means includes a setting means capable of setting the predetermined amount or the predetermined time until the first transport roller and the second transport roller are stopped. Adhesive device. The lower cloth is located between the lower cloth moving in the transport direction and the upper cloth overlapping the lower cloth from above, and is provided on the downstream side in the transport direction from the nozzle having a discharge port for discharging the adhesive. A second transport roller that transports the cloth and the upper cloth in the transport direction in cooperation with the first transport roller,
A cylindrical portion extending along the transport direction and having the second transport roller at one end in the transport direction is provided.
In the cloth transport mechanism of the cloth adhesive device that discharges the adhesive from the nozzle to the lower cloth and transports the upper cloth and the lower cloth in the transport direction to bond the upper cloth and the lower cloth .
The cylindrical portion is provided on the upstream side of the second transport roller and the nozzle in the transport direction, has a rotation axis parallel to the transport direction, and has the lower portion in an orthogonal direction orthogonal to the transport direction and the vertical direction. A position control roller that adjusts the position of the edge of the cloth,
The cylindrical portion is provided on the other end side opposite to the one end portion, and includes a first drive portion that serves as a power source for the second transport roller and a second drive portion that serves as a power source for the position control roller. The drive unit and
An end portion detection provided in the cylindrical portion on the downstream side in the transport direction from the position control roller and on the upstream side in the transport direction from the second transport roller to detect the position of the end portion of the lower cloth in the orthogonal direction. Department and
Adjustment control that controls the second drive unit based on the position of the end portion of the lower cloth detected by the end detection unit, and adjusts the position of the end portion of the lower cloth in the orthogonal direction by the position control roller. Department and
A first transmission mechanism provided inside the cylindrical portion and transmitting the power of the first drive portion to the second transfer roller.
A cloth transport mechanism provided inside the tubular portion and provided with a second transmission mechanism for transmitting the power of the second drive portion to the position control roller.

Images