JPH0767511B2 - Fabric folding device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fabric folding device for forming a folded-back portion of a predetermined width on the edge of the futon side, for example, to sew the futon side in a folding manner. The present invention relates to a means for transporting a work surface for folding so as to lay it on a work surface without wrinkles.

[0002]

2. Description of the Related Art Generally, the futon side sewn seams are of a folding type in which they are sewn along a folded piece having a predetermined width formed on the edge of the futon side. For this reason,
Before the sewing process, a folding process is provided to form a fold of a predetermined width on the futon side edge. When such a folding operation of the fabric body is performed manually, the folding width is determined by the feeling, and it is largely due to experience, especially for a large fabric body such as a futon side (hereinafter referred to as a work), The fold forming section (one side on the futon side) is long, the fold width varies, and the quality is not stable.

Therefore, it is conceivable to provide a workbench having a size that can be laid in the state where the entire cloth body is spread, and to form the folding back on each side at once on the workbench. For this purpose, a means for transporting the cloth body onto the workbench without wrinkles is required. As a prior example of a means for transporting a work such as a futon to a workbench, as disclosed in Japanese Utility Model Laid-Open No. 3-66948, it is provided in a path from a cloth supply source to a cloth supply point (workbench). A plurality of cloth conveying bodies that are set symmetrically with respect to the cloth conveying direction at a predetermined angle so that the outer side portion in the cloth width direction of the cloth conveying path is located in front of the inner side portion in the cloth conveying direction. And a drive means for rotating each rotating roller of each cloth conveying body so as to impart a conveying force obliquely forward to the cloth contacting the cloth conveying body, and the cloth conveying of each pair of rotating rollers. There is provided a cloth conveying device configured to sequentially increase the conveying force in the direction according to the cloth passing order of each rotating roller.

[0004]

However, in the conventional conveying device described in the above publication, a plurality of cloth conveying bodies are
Since it is composed of a plurality of rollers arranged in a line in the cloth conveying direction, it has a wide area as a conveying passage. Therefore, if the conventional conveying device described in the above publication is combined with a folding device and the conventional device is used as a means for conveying the cloth onto the workbench, a wide area such as the futon side can be obtained even with the cloth alone. In the case of occupying, the area of the conveying passage is added in addition to the folding device, and the exclusive area of the entire device becomes considerably large.

The present invention provides a folding device for a cloth body which allows the cloth body to be laid on the work surface without unfolding naturally during the process of conveying the cloth body to the work surface. To aim.

[0006]

According to the present invention, there is provided a base body having a work surface on which a cloth body is laid on a box-shaped upper surface, and a work piece having a reference position on one side of the work surface, and the work surface extending backward. A movable long base, a clamping means for chucking the edge of the cloth body aligned with the base in the reference position, and outside the working surface in parallel with the longitudinal direction of the base. The clamp means, which is installed and chucks the cloth body, rotates in order to apply a restraining force to the cloth body in a direction opposite to the moving direction of the clamp means at the timing when the clamp means is moved from the reference position to the back of the base body. It is a device for folding a cloth body, which comprises a reverse feeding means.

[0007]

According to this structure, when the worker aligns the cloth body with the base at the reference position, the clamping means automatically chucks one side edge of the cloth body, and the cloth body moves by the movement of the base. It is transported to the back of the work surface. At this time, the reverse feeding means, which is installed outside the work surface in parallel with the longitudinal direction of the base, rotates in order to apply a restraining force to the cloth body in the opposite direction in accordance with the conveyance of the cloth body. It is laid out on the work surface without wrinkling.

[0008]

The present invention will be described in detail below with reference to the drawings. FIG. 1 shows an overall schematic view of a fabric folding device according to an embodiment of the present invention, and FIGS. 2 to 9 show details of each part. Figure 1
As shown in FIG. 3, the folding device 1 includes frame bodies 3 and 4 each of which has U-shaped ends on both sides of a box-shaped base body 2 that also serve as legs.
Is attached, and the operation box 5 is arranged at the upper corner of the one frame 3. The top plate 2a of the base body 2 serves as a work surface for bending, and a rectangular rotary sheet 6 rotatably driven by turntable means described later is laid. On the upper middle bar of the frame bodies 3 and 4, two folding means 7 and 8 having the same structure for forming a folding piece having a predetermined width on the peripheral edge of the cloth body (hereinafter referred to as a work) are installed. Rods 9 and 10
It is adapted to be attached above the rotary seat 6 via the. Further, the side plate provided with the operation box 5 has a clamp means 1 for guiding the work onto the rotating sheet 6.
1 is provided.

2 to 4 show the construction of the folding means 7 and 8. The bending means 7 and 8 are different in that the bending means 7 is movable in a direction parallel to the frames 3 and 4 (hereinafter referred to as A direction), and the bending means 8 is fixed to the erection rod 10. Only the main configuration is the same. That is, taking the folding means 7 as an example, a cylinder 21 is attached to the erection rod 9 at a substantially central portion through a bracket 20. As shown in FIG. 4, a bracket 24 to which a long work pressing assembly 22 and a long fold forming assembly 23 are attached is fastened to the tip of the cylinder 21. The work pressing assembly 22 and the crease forming assembly 23 are attached to the bracket 24 so as to be opposed to each other by the cylinders 25 and 26 and the guide means 27 and 27 formed of sliders and rails so as to be freely slidable. . Both ends of the bracket 24 are sliders 2
A rail 2 attached to the erection rod 9 in a cross shape via 8
It is supported by 9.

As shown in FIG. 4, the work pressing assembly 22 includes a continuous rod 30 mounted on the slider side of the slide means 27, and a plurality of vertically extending rods (four in FIG. 3) extending from the continuous rod 30. Hanging shaft 31, a pressing plate 32 slidably supported by the hanging shaft 31, and the pressing plate 32.
And a spring 33 mounted between the hanging shafts 31. The tip 25a of the cylinder 25 is connected to the connecting rod 30.

Further, the fold forming assembly 23 includes a continuous rod 34 similar to the continuous rod 30, a cylinder 35 mounted in the vertical direction from the continuous rod 34, and the cylinder 35.
The heater 36 held by the tip portion 35a of the
6 is constructed in parallel with 6, and is configured by a blower tube 37 that lifts a predetermined width from the side edge of the work to the inside of the work by blowing air to the pressing plate 32 side. As with the work pressing assembly 22, the cylinder 26 is attached to the continuous rod 34.
The front end portion 26a of the is connected.

A buffer material 40 such as a Teflon sheet can be fed to the heater 36 by a winding roller 38 and a supply roller 39. The cushioning material 40 is a heater 36
Is interposed between the work and the work to avoid direct contact between the heater 36 and the work. The folding means 7 is moved in the A direction by moving the erection rod 9.
That is, the motor 41 is attached to one end of the erection rod 9, while the frame member 4 is provided with a rail member 42 of a predetermined length facing the motor 41. A rack 43 and a rail 44 are formed on the rail member 42, and a pinion 46a of a wheel shaft 46 coupled to the output shaft of the motor 41 via a belt 45 is meshed with the rack 43, and the rail 44 is attached to the erection rod 9. The slider 47 is fitted. Since the detailed configuration and operation of the transfer mechanism of the folding means 7 as described above are described in the specification of the fabric folding device (office reference number P0000004811) according to the invention of the simultaneous application, The description in this specification will be omitted with reference to this.

Next, the structure of the clamp means 11 will be described with reference to FIGS. As shown in FIG. 9, the clamp means 11 has an elongated shape parallel to the B direction orthogonal to the A direction on the top plate 2a on the operation box 5 side, and on the base 48 movable in the B direction. It is installed in. In this case, a plurality of clamp means 11 (for example, four) are integrated, and one clamp means 11 is shown in FIGS. 5 to 7.

That is, a ruler plate 49 and an abutment 50 are installed on the base 48, and a clamp member 51 having a substantially V-shaped cross section is provided on the abutment 50 via a rotary shaft 55 in the A direction. It is rotatably attached. Clamp member 51
In order to chuck the work at the front end, a swing member 56 having a long hole 56a is attached to the rear end, and the cylinder 5 that moves vertically is installed in the long hole 56a of the swing member 56.
The second tip portion 52a is loosely fitted. Also,
Optical type sensor means 53 for determining whether or not the state of the work due to the chucking of the clamp members 51 is normal is provided between the clamp members 51 and outside the clamp members 51 at both ends. The clamp member 51 has a window 51 through which the state of the aligned work can be visually confirmed.
a is worn.

The clamp means 11 is, as shown in FIGS. 8 and 9, a belt 5 which is installed on a driving pulley 57 and a driven pulley 58 which are provided corresponding to the positions of the frames 3 and 4.
9, the sheet is conveyed in the B direction. More specifically, the lower surface of the base 48 has a moving rod 6 having a U-shaped cross section.
2 are joined, and both ends of the moving rod 62 are top plates 2
It is disposed in the base 2 by penetrating through the A-direction guide grooves 54, 54 formed by dividing into two parts a. In the base body 2, a belt 59 that travels by the driving pulley 57 and the driven pulley 58 described above and rails 63 are attached to both ends in the A direction, and both ends of the moving rod 62 are attached to the belt 59 by fastening members 64. It is coupled and is guided to the rail 63 via the bracket 60 and the slider 61.

A gear 65 is attached to the driven pulley 58 so that the shafts thereof coincide with each other, and the terminal gear 6 is attached to the gear 65.
6 is meshed. The terminal gear 66 is substantially the base 4
It is located at both ends of 8 and is connected by a shaft 67. A reversing roller 68 whose surface is coated with a friction member is coaxially mounted on the shaft 67. The reverse rotation roller 68 constitutes the reverse feeding means according to the present invention. The driving pulley 57 of the belt 59 is connected to the output pulley 70 of the motor 69 via the belt 71.

On the other hand, the turntable means for rotationally driving the rotary sheet 6 is such that the shaft member supporting the rotary sheet 6 is supported by a bearing device and the shaft member is driven by a drive source such as a motor. , Since it has nothing to do with the gist of the present invention,
Detailed description is omitted. The structure and operation of such a turntable means are also described in detail in the specification of the above-mentioned simultaneous application.

The folding device 1 of this embodiment is constructed as described above. Next, the bending operation of the cloth body of the device will be described. The bending operation of the folding device 1 includes a setting step of setting a work so that it is chucked on the clamp means 11, a conveying step of conveying the clamp means 11 chucking the work onto the rotating sheet 6, and a rotation step. For example, this process includes forming folded pieces on four edges of the work laid on the sheet 6. This step is further divided into two steps of forming a folded piece with two opposite edges. Hereinafter, these will be described in order.

Setting step: First, an operator aligns one side of the work (for each width of one clamp member 51) with the ruler plate 49 of the clamp means 11. In this case, the cylinder 52, as shown by the solid line in FIG.
Is in the lower position so as to maintain a gap with the base 48, and the work is inserted through the gap. Then, the sensor means 5 set at both ends of one clamp member 51
When 3 senses that the work is inserted normally,
The cylinder 52 is automatically displaced to the upper position, and the clamp member 51 is operated so that the tip end side is lowered as shown by the alternate long and short dash line in FIG. 6 to chuck the work W (see FIG. 8). When all the clamping members 51 complete chucking in this way, the conveyance mechanism of the clamping means 11 is operated at the timing of the signals of all the sensor means 53 to guide the work W onto the rotating sheet 6.

Conveyance step: When the clamp means 11 is conveyed, the motor 69 is operated to drive the belt 59 clockwise in FIG. 8, and the upper side of the belt 59 with the base 48 travels in the F direction. . At this time, the intermediate gear 65 rotates in the forward direction with the belt 59, whereby the terminal gear 66 rotates in the G direction that repels the work W from the surface of the base 48. Therefore, the work W chucked by the clamp means 11 is rotated in the reverse direction to the direction in which it is conveyed.
Receives frictional force. Such a restraining force has a function of keeping the spread state of the work W, in which the traveling edge is widened by the clamp means 11, as it is based on the property of the cloth body. In this way, in this embodiment, the work W is laid on the rotating sheet 6 in a state where the work W is naturally spread during the process of transporting the work W. When the work W is completely laid on the rotating sheet 6, the carrying process is completed.

Main Step: Now, as shown in FIG. 10, the work W laid on the rotary sheet 6 has a long side B.
Unfolded to match the direction. At this time, the long side R1 on the right side coincides with the fold forming position shown by D by the work pressing assembly 22 of the folding means 8, or more precisely, the end of the pressing plate 32 by the positioning means (not shown) during work clamping. Is positioned as. Further, by this positioning, the rotating sheet 6 is inserted from the end of the long side R1 of the work W.
The distance Y to the rotation center O of the workpiece W coincides with the distance X from the short side edge of the work W to the rotation center O.
This distance X is set by the feed amount according to the type of the work in the above-mentioned transfer process. Then, the folding means 7 at the standby position shown by the alternate long and short dash line in FIG. While maintaining the above, the motor 41 is operated to reach the position of the left long side L1. When the bending means 7 is transferred, the wheel shaft 46 rolls by the operation of the motor 41, the pinion 46a meshes with the rack 43, and the slider 47 is guided by the rail 44, while the erection rod 9 moves toward the right side A direction. Due to being transported. Data can be set in advance in the operation box 5 according to the type of the work W so that the folding means 7 stops at the fold forming position on the left long side L1.

The bending means 7 and 8 are the long left and right sides L of the work.
When the cylinder 21 is set to the position in the A direction that substantially coincides with R1 and R1, the bending means 7 and 8 are lowered to land the pressing plate 32 on the rotary sheet 6. As a result, the work W is constrained by the pressing plate 32 by a predetermined width inside the fold forming positions C and D of the folded piece P based on the force of the spring 33. At this time, the portion that becomes the folded piece P is in a free state, and the blower tube 3 is struck at the time of landing.
Since air is blown from 7, the portion to be the folded piece P is lifted upward.

After the work state of FIG. 4, the crease forming assembly 23 is sub-slipped by the operation of the cylinder 26.
It is close to the work pressing assembly 22 as shown in FIG. Due to the proximity movement of the fold forming assembly 23, the heater 36 covered by the cushioning material 40 enters between the work portion that is the folded piece P that is being lifted by the air flow and the rotating sheet 6, and is the workpiece that is the folded piece P. When the portion reaches the pressing plate 32, the operation of the cylinder 35 lowers it by a predetermined stroke. As a result, the heater 36
Presses the work part to be the folded piece P. afterwards,
When the cylinder 26 operates and the work pressing assembly 22 is separated from the fold forming assembly 23 as shown in FIG. 13, the heater 36 is energized. Thereby, folds are formed at the folding line positions C and D according to the width of the folded piece P, and the folded piece P having a desired width can be formed. After forming the fold, the cylinder 35 is reset, and the work pressing assembly 22 and the folding means 7 and 8 of the fold forming assembly 23 return to the standby position shown by the one-dot chain line in FIG.

Next, in order to form a folded piece on the short side of the work W which is the side in the direction A at present, the rotary sheet 6 is rotated by 90 ° by the turntable means. When the rotary sheet 6 is rotated 90 °, the work W is aligned (parallel) with the long side in the A direction and the short side in the B direction as shown in FIG. 11. In this case, since the distance y from the rotation center O of the rotary sheet 6 to the short side edge of the right side is equal to X by the above-described operation at the time of setting the work and setting the carry amount, the folding means 8 is used for forming the fold line. It matches the position F. Further, the folding means 7 is moved to the stop on the fold forming position E on the left short side L1. Then, the folded piece P ′ can be formed also on the short side by the same operation as when the fold is formed on the long side. The folded piece P ′ on the short side is a corner that intersects with the previously formed folded piece P on the long side, and is naturally arranged and stacked.

Thus, according to the present invention, the work is conveyed onto the rotating sheet while preventing the wrinkle from being generated, and the work of extending the wrinkle in the subsequent folding step is unnecessary and the work surface is not taken. is there. The reverse feeding means does not prevent adoption of means such as a blowing means and a brush other than the reverse rotation roller as in the above embodiment.

[0026]

As described above, according to the present invention, in combination with the clamping means for chucking and transporting the work, the reverse feeding means for applying the restraining force to the work in the direction opposite to the direction of transporting the work. By providing the wrinkle, it is possible to convey the work onto the rotating sheet while preventing the wrinkles from occurring, and the work of extending the wrinkle in the subsequent folding process is unnecessary, and the workability especially for the work such as the futon side is improved. .

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of a fabric folding device according to the present invention.

FIG. 2 is a configuration diagram showing a bending means according to the above embodiment.

FIG. 3 is a configuration diagram showing the folding means viewed from a line IV-IV in FIG.

FIG. 4 is a configuration diagram of the folding means viewed from the B direction.

FIG. 5 is a configuration diagram of the clamp means viewed from above.

FIG. 6 is a configuration diagram of a clamp unit as viewed from the right side in FIG.

FIG. 7 is a configuration diagram of a clamp means when FIG. 6 is viewed from the right side.

FIG. 8 is an explanatory diagram illustrating a transport mechanism of a clamp unit.

FIG. 9 is a configuration diagram of the above-described transport mechanism as viewed from above.

FIG. 10 is an explanatory view showing an operation of forming a folded piece on two opposite sides of a work.

FIG. 11 is an explanatory view showing an operation of forming a folded piece on another two opposite sides.

FIG. 12 is an explanatory view showing a state in which a folded piece is formed.

FIG. 13 is an explanatory view showing a state where the work pressing means is separated from the fold forming means.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Fabric folding device, 2 ... Base, 11 ... Clamping means,
48 ... Base, 49 ... Ruler plates 49, 51 ... Clamping member, 55 ... Rotating shafts 55, 56 ... Oscillating member, 52 ... Cylinder, 53 ... Sensor means, 57 ... Driving pulley, 58 ... Followed pulley, 59 ... Belt , 62 ... Moving rods 62, 63 ...
Rails, 61 ... Sliders, 65 ... Intermediate gears, 66 ... End gears, 67 ... Shafts, 68 ... Reverse rotation rollers (reverse feeding means), 69
... Motor, W ... Work, P, P '... Folded piece.

Claims (1)

[Claims] 1. A base body having a work surface on which a cloth body is laid on a box-shaped upper surface, and a long base which has a reference position on one side of the work surface and is movable inward on the work surface. Clamping means for chucking the peripheral edge of the cloth body aligned with the base in the reference position, and the cloth body installed outside the working surface in parallel with the longitudinal direction of the base. Reverse feeding means for rotating to apply a restraining force to the cloth body in a direction opposite to the moving direction of the clamp means at a timing when the clamped clamp means is moved from the reference position to the back of the base body. A folding device for a cloth body.