JP7628296B2 - Workpiece bonding device and workpiece bonding method - Google Patents

Description

The present invention relates to a workpiece lamination device and a workpiece lamination method for laminating a sheet-like workpiece to a flat workpiece.

The present applicant has previously proposed this type of work lamination device (Patent Document 1). The work lamination device of Patent Document 1 is composed of a conveyor device that intermittently feeds a first work adsorbed on a conveyor belt toward a lamination position, a turntable that intermittently rotates a second work adsorbed on a plurality of adsorption tables to face the first work fed to the lamination position, a first peeling device, a second peeling device, a positioning device that corrects the positional deviation of each work during the intermittent rotation of the turntable, and a lamination device that presses the first work after positioning against the second work with a lamination roller to laminate the two workpieces. The work lamination device of Patent Document 1 is used, for example, when laminating a functional sheet such as a polarizing sheet, an anti-reflection film, an electromagnetic wave shielding film, or an ultraviolet ray shielding film to a flat workpiece such as a liquid crystal substrate or a plasma display substrate.

JP 2012-3037 A

According to the work lamination device of Patent Document 1, the supply of the first and second workpieces, the peeling off of the protective paper, positioning, and lamination with the lamination roller can be performed continuously, so the waiting time between each process can be shortened, shortening the time required for the series of lamination processes and improving productivity. However, while the turntable must be rotated 90 degrees at a time up to 270 degrees, the supply of the workpieces, the peeling off of the protective paper, positioning, and lamination with the lamination roller must be performed in sequence, and then the turntable must be rotated 270 degrees in the opposite direction to return to the initial state. Therefore, although the waiting time between each process can be shortened to some extent, there is a limit to the degree to which the time required for the series of lamination processes can be shortened.

The object of the present invention is to provide a workpiece lamination device and a workpiece lamination method that can reduce the time required for each lamination process of the two workpieces and further improve the productivity of the lamination process by continuously laminating the first workpiece and the second workpiece to form a group of laminated bodies of the two workpieces in a layered state.

The work bonding device according to the present invention comprises a sheet supply mechanism 2 that unwinds and supplies a continuous sheet-like first work W1, a rotary bonding table 5 having a plurality of bonding surfaces 31 and driven to rotate about a horizontal axis to hold one of the bonding surfaces 31 in a bonding position while winding up the first work W1, a work mounting table 3 arranged adjacent to the rotary bonding table 5 and on which a flat second work W2 is stacked, a work transport mechanism 4 that adsorbs and holds the second work W2 on the work mounting table 3 and transports it onto the bonding surface 31 held in a bonding position, and a bonding mechanism 6 that presses the first work W1 connected to the rotary bonding table 5 against the second work W2 with a bonding roller 37 to bond the two workpieces W1 and W2 together. The rotary lamination table 5 is intermittently rotated by the table drive mechanism 30, and while winding up the first work W1, the laminate of the first work W1 and the second work W2 is withdrawn from the lamination position, and the new lamination surface 31 is held in the lamination position. The work transport mechanism 4 transfers the second work W2 onto the new lamination surface 31, the lamination mechanism 6 laminates the first work W1 and the second work W2, and the table drive mechanism 30 rotates the rotary lamination table 5 to repeatedly and continuously form a group of laminates of the first work W1 and the second work W2 on the lamination surface 31 of the rotary lamination table 5.

The work placement table 3 is composed of a front stage placement table 3A and a rear stage placement table 3B, and the rear stage placement table 3B is arranged between the rotary lamination table 5 and the front stage placement table 3A. The work transport mechanism 4 is composed of a front stage transport mechanism 4A that adsorbs and holds the second work W2 on the front stage placement table 3A and transports it to the rear stage placement table 3B, and a rear stage transport mechanism 4B that adsorbs and holds the second work W2 on the rear stage placement table 3B and transports it onto the lamination surface 31 of the rotary lamination table 5. The front stage transport mechanism 4A and the rear stage transport mechanism 4B move back and forth, and the front stage transport mechanism 4A transports the second work W2 from the front stage placement table 3A to the rear stage placement table 3B, and the rear stage transport mechanism 4B transports the second work W2 on the rear stage placement table 3B onto the lamination surface 31 of the rotary lamination table 5.

Equipped with a welding mechanism 7 that welds and fixes the outer edge of the bonding end of the first workpiece W1 bonded to the second workpiece W2 to the first workpiece W1 in the lower layer.

The present invention also relates to a method for laminating a workpiece using a workpiece laminating device that includes a sheet supply mechanism 2 that unwinds and supplies a continuous sheet-like first workpiece W1, a rotary laminating table 5 that has a plurality of laminating surfaces 31 and is driven to rotate around a horizontal axis to hold one of the laminating surfaces 31 in a laminating position while winding up the first workpiece W1, a workpiece mounting table 3 that is arranged adjacent to the rotary laminating table 5 and on which a flat second workpiece W2 is stacked and mounted, a workpiece transport mechanism 4 that adsorbs and holds the second workpiece W2 on the workpiece mounting table 3 and transports it onto the laminating surface 31 held in the laminating position, and a laminating mechanism 6 that presses the first workpiece W1 connected to the rotary laminating table 5 against the second workpiece W2 with a laminating roller 37 to laminate the two workpieces W1 and W2. This process includes a preparation step in which the unwound end of the first work W1 in the form of a continuous sheet unwound from the sheet supply mechanism 2 is fixed to the clamp 26 of the rotary laminating table 5; a work transport step in which the second work W2 on the work mounting table 3 arranged adjacent to the rotary laminating table 5 is held by the work transport mechanism 4 and transported to the laminating surface 31 of the rotary laminating table 5; a laminating step in which the first work W1 connected to the rotary laminating table 5 is pressed against the second work W2 by the laminating roller 37 of the laminating mechanism 6 to laminate both workpieces W1 and W2; and a laminating table rotation step in which the rotary laminating table 5 is intermittently rotated to retract the laminate of the first work W1 and the second work W2 from the laminating position while winding up the first work W1, and hold the new laminating surface 31 in a laminating posture. The process is characterized by repeating the work transfer process, lamination process, and lamination table rotation process in succession to form a group of laminated bodies in which the first work W1 and the second work W2 are laminated on the lamination surface 31 of the rotary lamination table 5.

This includes a welding process in which the first work W1 between the lamination end of the first work W1 and the lamination roller 37 is welded and fixed to the first work W1 below while the outer edge of the lamination end of the first work W1 is pressed down by the lamination roller 37.

The work lamination device according to the present invention is composed of a sheet supply mechanism 2, a work placement table 3, a work transport mechanism 4, a rotary lamination table 5, and a lamination mechanism 6. After the initial lamination process including lamination preparation is completed, the work transport mechanism 4 transports the second work W2, the lamination of the two workpieces W1 and W2 by the lamination roller 37, and the table drive mechanism 30 rotates and drives the rotary lamination table 5. This allows the lamination of the two workpieces W1 and W2 on each lamination surface 31 of the rotary lamination table 5. Unlike the conventional lamination device, the work lamination device according to the present invention does not require the rotary lamination table to be returned to its initial state for each lamination cycle, thereby shortening the time required for lamination of the first workpiece W1 and the second workpiece W2 per lamination process, thereby improving the productivity of the lamination process.

The front stage loading table 3A and the rear stage loading table 3B constitute the work loading table 3, and the front stage transport mechanism 4A and the rear stage transport mechanism 4B constitute the work transport mechanism 4. According to this work bonding device, when the work is transferred, the front stage transport mechanism 4A and the rear stage transport mechanism 4B move back and forth to transfer the second work W2 from the front stage loading table 3A to the rear stage loading table 3B, and the second work W2 on the rear stage loading table 3B can be transferred onto the bonding surface 31 of the rotary lamination table 5, so that the time required for the work transfer can be shortened and the time required for each lamination process can be shortened accordingly. In addition, in the case where the upper surface of the second work W2 is covered with protective paper, while the second work W2 on the rear stage loading table 3B is transferred to the rotary lamination table 5 by the rear stage transport mechanism 4B, the protective paper of the second work W2 transferred by the front stage transport mechanism 4A can be peeled off by the peeling device, so that the processing time required for the series of lamination processes can be further shortened.

The lamination table 5 is provided with a welding mechanism 7 that welds and fixes the outer edge of the lamination end of the first work W1 laminated to the second work W2 to the first work W1 in the lower layer. This allows the first work W1 between the lamination end of the first work W1 and the lamination roller 37 to be fixed integrally to the first work W1 in the lower layer. Therefore, when the rotary lamination table 5 is rotated and driven by the table drive mechanism 30, the tension of the first work W1 acts on the lamination surfaces of both works W1 and W2, and it is possible to reliably prevent the first work W1 from peeling off from the second work W2. Therefore, the first work W1 can be wound up by the rotary lamination table 5 in a stable manner, which is continuous with the lamination of the first work W1 to the second work W2.

In the work bonding method according to the present invention, the preparation process, the work transfer process, the bonding process, and the bonding table inversion process are performed in sequence, so that the first work W1 can be continuously bonded to the second work W2. In particular, in the continuous bonding process after the initial bonding process including the preparation process is completed, the work transfer process, the bonding process, the welding process, and the bonding table inversion process are repeatedly performed in succession, so that a group of bonded bodies in which the first work W1 and the second work W2 are bonded to each other can be continuously formed on the multiple bonding surfaces 31 of the rotary bonding table 5. According to this work bonding method, a group of bonded bodies of both work W1 and W2 can be formed in a layered form on each of the bonding surfaces 31 of the rotary bonding table 5. Therefore, unlike the conventional bonding device, it is not necessary to return the rotary bonding table to the initial state for each series of bonding cycles, and the time required for each bonding process of the first work W1 and the second work W2 can be shortened, thereby improving the productivity of the bonding process.

By including a welding process in which the first work W1 between the lamination end of the first work W1 and the lamination roller 37 is welded and fixed to the first work W1 in the lower layer while the outer edge of the lamination end of the first work W1 is pressed down by the lamination roller 37, the first work W1 between the lamination end of the first work W1 and the lamination roller 37 can be fixed integrally to the first work W1 in the lower layer. Therefore, when the rotary lamination table 5 is rotated and driven by the table drive mechanism 30, the tension of the first work W1 acts on the lamination surfaces of both works W1 and W2, and it is possible to reliably prevent the first work W1 from peeling off from the second work W2. Therefore, the first work W1 can be wound up by the rotary lamination table 5, which is continuous with lamination of the first work W1 to the second work W2, in a always stable state.

FIG. 2 is a front view of the workpiece bonding device according to the embodiment of the present invention. FIG. 2 is a view taken along the arrow A in FIG. FIG. 2 is a view taken along the arrow B in FIG. FIG. FIG. 11 is an explanatory diagram showing a work transfer step in the bonding procedure. FIG. 11 is an explanatory diagram showing a work transfer step and a lamination step of the lamination procedure. 11 is an explanatory diagram showing a lamination table reversing step and a second workpiece transport step of the lamination procedure. FIG. FIG. 11 is an explanatory diagram showing a second lamination step and a welding step in the lamination procedure. 13 is an explanatory diagram showing a second lamination table reversing step and a third workpiece transport step of the lamination procedure. FIG. FIG. 13 is an explanatory diagram showing successive lamination steps (a third lamination step and a second welding step) of the lamination procedure. FIG. 11 is an explanatory diagram showing a sheet cutting step of the lamination procedure. FIG. 11 is a front view showing a schematic view of the blank bonded body after a sheet cutting process. 1A and 1B are a perspective view and a front view of a blank laminate after finish cutting.

(Embodiment) Figures 1 to 13 show an embodiment of the work bonding device according to the present invention. In this embodiment, front, back, left, right, and up and down refer to the crossed arrows shown in Figures 1 and 2 and the indications of front, back, left, right, and up and down written near each arrow. In Figure 1, the work bonding device has a pair of front and back frames 1, 1, and between the front and back frames 1, 1, a sheet supply mechanism 2, a work placement table 3, a work transport mechanism 4, a rotary bonding table 5, a bonding mechanism 6, a welding mechanism 7, etc. are arranged.

The sheet supply mechanism 2 is composed of a roll shaft 10 that is rotatably supported by the frame 1-1 and supports the original roll R of the first work W1, a brake (not shown) that keeps the amount of sheet fed from the original roll R constant, three guide rollers 11 arranged on the upper part of the frame 1-1, and a tension mechanism 12 that is arranged below the two guide rollers 11 near the original roll R and moves up and down relative to both rollers 11 to apply a constant tension to the first work W1. The continuous sheet-like first work W1 fed from the original roll R is reversed and guided downward by the first guide roller 11, reversed and guided upward by the tension roller 13 of the tension mechanism 12, guided horizontally by the second and third guide rollers 11, and fed and guided downwardly toward the rotary lamination table 5 while being supported by the third guide roller 11.

The workpiece placement table 3 is composed of a front-stage placement table 3A and a rear-stage placement table 3B. The front-stage placement table 3A and the rear-stage placement table 3B are arranged between the rotary lamination table 5 and the sheet supply mechanism 2. The front-stage placement table 3A is arranged near the sheet supply mechanism 2, and the rear-stage placement table 3B is arranged between the rotary lamination table 5 and the front-stage placement table 3A. A group of flat plate-shaped second workpieces W2 are placed on the front-stage placement table 3A. The platform portion of the front-stage placement table 3A is raised by a lifting mechanism (not shown) by the thickness of the second workpiece W2 each time the second workpiece W2 is transferred. A pair of front-stage cameras 8A are provided on the underside of the rear-stage placement table 3B, one on the left and one on the right, to detect the placement posture of the second workpiece W2 on the rear-stage placement table 3B.

The work transport mechanism 4 is composed of a front-stage transport mechanism 4A that adsorbs and holds the second work W2 on the front-stage mounting table 3A and transports it to the rear-stage mounting table 3B, and a rear-stage transport mechanism 4B that adsorbs and holds the second work W2 on the rear-stage mounting table 3B and transports it onto the lamination surface 31 of the rotary lamination table 5. The front-stage and rear-stage transport mechanisms 4A and 4B are guided and supported by guide rails 15 fixed to the front and rear frames 1 and 1 so that they can slide freely left and right. In detail, as shown in FIG. 2, the front and rear transport mechanisms 4A and 4B are composed of an inverted L-shaped transport frame 16 guided and supported by front and rear guide rails 15, front and rear operation mechanisms 17 fixed on the transport frame 16, a transport table 19 supported by an elevation shaft 18 of the operation mechanism 17, an adsorption stand 20 provided on the underside of the transport table 19 to adsorb and hold the second work W2, and a drive mechanism (not shown) arranged between the transport frame 16 and either the front or rear frame 1 to reciprocate the transport mechanisms 4A and 4B. In the rear transport mechanism 4B, a holding roller 21 is provided on the side edge of the adsorption stand 20 on the rotary lamination stand 5 side to receive the first work W1 when the rear transport mechanism 4B transfers the second work W2 to the rotary lamination stand 5. The operation mechanism 17 of the rear transport mechanism 4B also has a positioning device.

3 and 4, the rotary lamination table 5 is composed of a flat plate-shaped base plate 25 fixed between a pair of front and rear frames 24, a clamp 26 fixed to the side end of the base plate 25, a winding roller 27 arranged at the side end of the base frame 24, and a rotating shaft 28 fixed to the front and rear surfaces of the base frame 24. The rotating shaft 28 is rotatably supported by bearings 29 fixed to the front and rear frames 1. Reference numeral 30 indicates a table drive mechanism that intermittently reverses (rotates) the rotary lamination table 5. By intermittently reversing (rotating) the rotary lamination table 5 by the table drive mechanism 30, the first work W1 can be wound by the base plate 25 and the winding roller 27 while the pair of upper and lower lamination surfaces 31 of the base plate 25 can be alternately opposed to the first work W1. Above the rotary lamination table 5, a pair of left and right rear stage cameras 8B are provided to detect the placement posture of the second work W2 transferred onto the base plate 25. The rear camera 8B detects the placement orientation of the second workpiece W2 after the first workpiece W1 has been bonded.

As shown in Figures 1 and 3, the lamination mechanism 6 is composed of a slide frame 34 that is guided and supported by the guide rails 15, an operation mechanism 35 that is fixed to the front and rear of the underside of the slide frame 34, a roller frame 36 that is raised and lowered by the operation mechanism 35, and a lamination roller 37 that is rotatably supported by the roller frame 36. A guide rail 38 that is long in the front-rear direction is fixed to the top surface of the slide frame 34, and this guide rail 38 guides and supports the welding mechanism 7 so that it can move back and forth along the central axis of the lamination roller 37.

In FIG. 3, the welding mechanism 7 is composed of a slide block 41 guided by a guide rail 38, an operation mechanism 42 fixed to the slide block 41, and a welding head 43 that is raised and lowered by the operation mechanism 42. Separate from the welding mechanism 7, the slide block 41 is provided with a cutting mechanism 45 for cutting the first workpiece W1. The cutting mechanism 45 is composed of an operation mechanism 46 fixed to the slide block 41 like the welding mechanism 7, and a cutter 47 that is raised and lowered by the operation mechanism 46.

The workpiece lamination device configured as described above laminates the first workpiece W1 onto the top surface of the second workpiece W2 in the manner described below. The lamination process of the two workpieces W1 and W2 sequentially includes a preparation process, a workpiece transport process, a lamination process, a welding process, a lamination table inversion process (lamination table rotation process), a continuous lamination process, a sheet cutting process, and a finish cutting process.

In the preparation process, the first work W1 fed from the sheet supply mechanism 2 is wound around each guide roller 11 and tension roller 13 as shown in FIG. 1, and then the fed end of the first work W1 is wound around the left winding roller 27 and then fixed to the clamp 26 on the left back side of the rotary lamination table 5. In this state, the tension mechanism 12 is raised and lowered to apply a constant tension to the first work W1. In addition, the second work W2 on the front stage loading table 3A is transferred to the rear stage loading table 3B by the front stage transport mechanism 4A.

In the work transfer process, as shown in Figures 5(a) to 5(b), the second work W2 on the work placement table 3 is held by the work transfer mechanism 4, and then transferred to the lamination surface 31 on the upper surface side of the rotary lamination table 5 to face the first work W1. Specifically, the second work W2 on the rear stage placement table 3B is held by the rear stage transfer mechanism 4B and transferred to the lamination surface 31 of the rotary lamination table 5, and in parallel, the second work W2 on the front stage placement table 3A is held by the front stage transfer mechanism 4A and transferred to the rear stage placement table 3B. At this time, the second work W2 is adsorbed and held by the suction table 20 of the front and rear stage transfer mechanisms 4A and 4B, and while the conveying table 19 and the suction table 20 are raised and lowered by the operation mechanism 17, both workpieces W1 and W2 are adsorbed and held, or the suction is released and both workpieces W1 and W2 are transferred. In addition, before the rear-stage conveying mechanism 4B finishes moving onto the lamination surface 31 of the rotary lamination table 5, the holding roller 21 receives the first work W1 and holds it to the side of the lamination surface 31 as shown in FIG. 5(b). The placement posture of the second work W2 transferred to the rear-stage placement table 3B by the front-stage conveying mechanism 4A is detected and stored by the front-stage camera 8A.

In the first lamination process, the first work W1 covering the upper surface of the rotary lamination table 5 is pressed against the second work W2 by the lamination roller 37 of the lamination mechanism 6 to laminate the two workpieces W1 and W2. Specifically, as shown in FIG. 6(a), the roller frame 36 is lowered by the operation mechanism 35, and the lamination roller 37 presses the first work W1 against the second work W2. In this state, the lamination mechanism 6 is moved toward the rear stage mounting table 3B side (right side) as shown in FIG. 6(b) to laminate the two workpieces W1 and W2. When lamination of the two workpieces W1 and W2 is completed, the lamination posture of the second workpiece W2 is detected and stored by the rear stage camera 8B. When the first lamination process is completed, the first workpiece W1 does not exist on the lower layer (lower surface side) of the first workpiece W1 laminated to the second workpiece W2, so the welding process is not performed.

Next, the second work transfer process is performed. In the second work transfer process, as shown in FIG. 7(a), the lamination mechanism 6 is returned to the standby position on the lamination start side, and then the rotary lamination table 5 is driven in a counterclockwise direction by the table drive mechanism 30 to rotate in a reverse manner. While the first work W1 is wound by the base plate 25 and the winding roller 27, the laminate of the first work W1 and the second work W2 is retreated to the lower surface side of the rotary lamination table 5 as shown in FIG. 7(b), and the new lamination surface 31 faces the first work W1. In this state, as shown in FIG. 7(c), the second work W2 on the front stage loading table 3A and the second work W2 on the rear stage loading table 3B are held by the front stage transport mechanism 4A and the rear stage transport mechanism 4B and transported to the lamination surface 31 of the rear stage loading table 3B and the rotary lamination table 5.

Next, the second lamination process is performed. In the second lamination process, as in the first lamination process, the lamination roller 37 presses the first workpiece W1 against the second workpiece W2, and in this state, the lamination mechanism 6 is moved toward the rear stage mounting table 3B to laminate both workpieces W1 and W2 (see Figures 8(a) and (b)). When lamination of both workpieces W1 and W2 is completed, the lamination posture of the second workpiece W2 is detected by the rear stage camera 8B and stored.

After the second lamination process is completed, the first welding process is performed. In the welding process, as shown in FIG. 8(c), while the first work W1 is pressed down by the lamination roller 37, the first work W1 between the lamination end of the first work W1 and the lamination roller 37 is welded and fixed to the first work W1 in the lower layer by the welding mechanism 7. In detail, while the welding head 43 is intermittently or continuously lowered by the operation mechanism 42, the slide block 41 is moved backward to weld the upper first work W1 to the lower first work W1. As described above, by welding and fixing the first work W1 between the lamination end of the first work W1 and the lamination roller 37 to the lower first work W1, when the rotary lamination table 5 is reversed and driven by the table drive mechanism 30, the tension of the first work W1 acts on the lamination surfaces of both workpieces W1 and W2, and the first work W1 can be reliably prevented from peeling off from the second work W2. When the welding process is completed, the lamination roller 37 is raised, and at the same time, the slide block 41 is moved to the front standby position, and the lamination mechanism 6 is returned to the standby position on the lamination start end side, and the lamination table reversal process is started. As shown in Figures 9(a) and (b), the rotary lamination table 5 is driven to reverse. The above preparation process to the second lamination table reversal process constitute the initial lamination process.

In the continuous lamination process, the following steps are continuously repeated to form a group of laminated bodies on a pair of lamination surfaces 31 of the rotary lamination table 5: a work transfer process (see FIG. 9(c)) in which the second work W2 on the front-stage loading table 3A and the rear-stage loading table 3B is held by the front-stage and rear-stage transport mechanisms 4A and 4B and transferred to the rear-stage loading table 3B and the lamination surface 31 of the rotary lamination table 5; a lamination process in which the first work W1 is pressed against the second work W2 by the lamination roller 37 to laminate the two workpieces W1 and W2; a welding process in which the outer edge of the lamination end of the first work W1 is welded and fixed to the first work W1 below by the welding mechanism 7; and a lamination table inversion process in which the rotary lamination table 5 is rotated counterclockwise by the table drive mechanism 30. In the work transfer process, the position of the placement posture of the second work W2 held by the rear transport mechanism 4B is adjusted by a positioning device above the rotary lamination table 5, based on the memorized lamination posture of the second work W2.

Figures 10(a)-(b) show the state where the first workpiece W1 is bonded to the third second workpiece W2, and Figure 10(c) shows the state where the outer edge of the bonding end of the first workpiece W1 is bonded and fixed to the lower first workpiece W1 by the bonding mechanism 7. When the bonding amount of both workpieces W1 and W2 reaches a predetermined amount by the continuous bonding process, the sheet cutting process is performed to obtain the blank bonded body 50. Specifically, as shown in Figure 11, while the cutter 47 is lowered by the operating mechanism 46 of the cutting mechanism 45, the slide block 41 is moved backward to cut the outer edge of the welded part by the bonding mechanism 7, and the blank bonded body 50 is separated from the first workpiece W1. The rotary bonding table 5 in this state is separated from the bearing 29, and the blank bonded body 50 is removed from the rotary bonding table 5, thereby obtaining the blank bonded body 50 as shown in Figure 12. In order to avoid complicating the drawings, Figures 12 and 13 show a blank laminate 50 in which only three layers of the laminate of the first workpiece W1 and the second workpiece W2 are stacked, but the number of layers of the laminate of the two workpieces W1 and W2 can exceed several tens of layers, depending on the size of the workpieces.

In the finishing cutting process, unnecessary portions of the blank laminate 50 obtained through the sheet cutting process are cut off. When removed from the rotary laminating table 5, the upper and lower blank laminates 50 face each other as shown in FIG. 12. By cutting the first work W1 between the welded portion of the blank laminate 50 in this state and the side edge of the second work W2, two blank laminates 50 are obtained. Finally, by cutting the first work W1 that protrudes outside the side edge of the second work W2, a laminate of the first work W1 and the second work W2 with a predetermined external dimension as shown in FIG. 13 can be obtained. Thereafter, by repeatedly performing the preparation process to the finishing cutting process, the laminate of the first work W1 and the second work W2 can be efficiently produced. In addition, in the workpiece lamination device and workpiece lamination method of this embodiment, a laminate of the first workpiece W1 and the second workpiece W2 is produced while the first workpiece W1 is being wound up, so both workpieces W1 and W2 can be laminated together even if the first workpiece W1 is made of a material such as a wrap film, which has difficulty maintaining a flat shape in a sheet form.

According to the work laminating device and work laminating method configured as described above, in the continuous laminating process after the initial laminating process is completed, the transfer of the second work W2 by the rear transport mechanism 4B, lamination of both workpieces W1 and W2 by the laminating roller 37, welding of the laminating end of the first workpiece W1 by the welding mechanism 7, and the inversion drive of the rotary laminating table 5 by the table drive mechanism 30 are performed repeatedly and continuously in the order described above, so that a laminate of both workpieces W1 and W2 can be formed on each laminating surface 31 of the rotary laminating table 5. Therefore, unlike the conventional laminating device, since it is not necessary to return the rotary laminating table to the initial state for each series of laminating cycles, the time required for each laminating process of the first workpiece W1 and the second workpiece W2 can be shortened, and the productivity of the laminating process can be further improved.

In addition, the workpiece placement table 3 is composed of the front stage placement table 3A and the rear stage placement table 3B, and the workpiece transfer mechanism 4 is composed of the front stage transport mechanism 4A and the rear stage transport mechanism 4B. Therefore, in the work transfer process, the front stage transport mechanism 4A and the rear stage transport mechanism 4B move back and forth to transfer the second workpiece W2 from the front stage placement table 3A to the rear stage placement table 3B, and at the same time, the second workpiece W2 on the rear stage placement table 3B can be transferred onto the bonding surface 31 of the rotary lamination table 5. Therefore, the time required for work transfer can be minimized, and the time required for each lamination process can be shortened accordingly. In addition, in the case where the upper surface of the second workpiece W2 is covered with protective paper, the protective paper of the second workpiece W2 transferred by the front stage transport mechanism 4A can be peeled off by the peeling device while the second workpiece W2 on the rear stage placement table 3B is transferred to the rotary lamination table 5 by the rear stage transport mechanism 4B, so that the processing time required for the series of lamination processes can be further shortened.

The lamination mechanism 6 is placed in a standby position on one side of the rotary lamination table 5, and the welding mechanism 7 is placed adjacent to the outer side of the lamination mechanism 6. In addition, while the lamination roller 37 holds down and holds the outer edge of the lamination end of the first workpiece W1, the welding mechanism 7 is moved along the central axis of the lamination roller 37 to weld and fix the first workpiece W1 between the lamination end of the first workpiece W1 and the lamination roller 37 to the first workpiece W1 in the lower layer. With this lamination device, the first workpiece W1 between the lamination end of the first workpiece W1 and the lamination roller 37 can be accurately welded and fixed to the first workpiece W1 in the lower layer by the welding mechanism 7 while maintaining the lamination posture of the first workpiece W1 and the second workpiece W2. In addition, by welding and fixing the first work W1 between the lamination end of the first work W1 and the lamination roller 37 to the first work W1 in the lower layer in this way, when the rotary lamination table 5 is driven in reverse by the table drive mechanism 30, the tension of the first work W1 acts on the lamination surfaces of both works W1 and W2, and it is possible to reliably prevent the first work W1 from peeling off from the second work W2. Therefore, the winding of the first work W1 by the rotary lamination table 5, which is subsequent to lamination of the first work W1 to the second work W2, can always be performed in a stable state.

In the above embodiment, the workpiece mounting table 3 is composed of a front stage mounting table 3A and a rear stage mounting table 3B, and the workpiece transport mechanism 4 is composed of a front stage transport mechanism 4A and a rear stage transport mechanism 4B, but this is not necessary, and one workpiece mounting table 3 and one workpiece transport mechanism 4 may be provided between the sheet supply mechanism 2 and the rotary lamination table 5. In this case, the workpiece transport mechanism 4 is equipped with a holding roller 21, similar to the rear stage transport mechanism 4B. The rotary lamination table 5 may be structured to have one or more pairs of lamination surfaces 31 with a cross section of a triangle or a square. The sheet supply mechanism 2 can be arranged above the workpiece mounting table 3 or above the rotary lamination table 5.

2 Sheet supply mechanism 3 Workpiece placement table 3A Front placement table 3B Rear placement table 4 Workpiece transport mechanism 4A Front transport mechanism 4B Rear transport mechanism 5 Rotary lamination table 6 Laminating mechanism 7 Welding mechanism 30 Table drive mechanism 31 Laminating surface 37 Laminating roller W1 First workpiece W2 Second workpiece

Claims (5)

A sheet supply mechanism (2) that feeds and supplies a continuous sheet-like first work (W1);
a rotary laminating table (5) having a plurality of laminating surfaces (31), which is rotated around a horizontal axis and holds one of the laminating surfaces (31) in a laminating position while winding up the first work (W1);
A work placement table (3) arranged adjacent to the rotary lamination table (5) and on which a flat second work (W2) is stacked and placed;
a work transport mechanism (4) that adsorbs and holds the second work (W2) on the work placement table (3) and transports it onto the lamination surface (31) that is held in a lamination posture;
a lamination mechanism (6) that presses a first work (W1) connected to a rotary lamination table (5) against a second work (W2) with a lamination roller (37) to laminate both workpieces (W1, W2);
Equipped with
The rotary laminating table (5) is intermittently rotated by a table driving mechanism (30) to retract the laminate of the first work (W1) and the second work (W2) from the laminating position while winding up the first work (W1), and to hold a new laminating surface (31) in a laminating position;
The work bonding device is configured to repeatedly and continuously transfer the second work (W2) onto a new bonding surface (31) by the work transport mechanism (4), bond the first work (W1) and the second work (W2) by the bonding mechanism (6), and rotate the rotary bonding table (5) by the table drive mechanism (30) to form a group of bonded bodies of the first work (W1) and the second work (W2) on the bonding surface (31) of the rotary bonding table (5). The workpiece placement table (3) is composed of a front-stage placement table (3A) and a rear-stage placement table (3B), and the rear-stage placement table (3B) is disposed between the rotary lamination table (5) and the front-stage placement table (3A);
The work transport mechanism (4) is composed of a front-stage transport mechanism (4A) that adsorbs and holds the second work (W2) on the front-stage mounting table (3A) and transports it to the rear-stage mounting table (3B), and a rear-stage transport mechanism (4B) that adsorbs and holds the second work (W2) on the rear-stage mounting table (3B) and transports it onto the laminating surface (31) of the rotary laminating table (5),
The work bonding device according to claim 1, wherein the front-stage conveying mechanism (4A) and the rear-stage conveying mechanism (4B) move back and forth, the front-stage conveying mechanism (4A) transfers the second work (W2) from the front-stage mounting table (3A) to the rear-stage mounting table (3B), and the rear-stage conveying mechanism (4B) transfers the second work (W2) on the rear-stage mounting table (3B) onto the bonding surface (31) of the rotary bonding table (5). The work bonding device according to claim 2, further comprising a welding mechanism (7) that welds and fixes the outer edge of the bonding end of the first work (W1) bonded to the second work (W2) to the first work (W1) below. a sheet supply mechanism (2) for unwinding and supplying a continuous sheet-like first work (W1); a rotary laminating table (5) having a plurality of laminating surfaces (31), which is driven to rotate about a horizontal axis and holds one of the laminating surfaces (31) in a laminating position while winding up the first work (W1); a work placement table (3) arranged adjacent to the rotary laminating table (5) and on which a flat plate-like second work (W2) is placed in a layered manner; a work transport mechanism (4) for adsorbing and holding the second work (W2) on the work placement table (3) and transporting it onto the laminating surface (31) held in the laminating position; and a laminating mechanism (6) for pressing the first work (W1) connected to the rotary laminating table (5) against the second work (W2) with a laminating roller (37) to laminate both workpieces (W1, W2),
A preparation process of fixing a feed end of a continuous sheet-like first work (W1) fed from a sheet supply mechanism (2) to a clamp (26) of a rotary lamination table (5);
A work transfer process in which a second work (W2) on a work placement table (3) arranged adjacent to the rotary lamination table (5) is held by a work transfer mechanism (4) and transferred to a lamination surface (31) of the rotary lamination table (5);
a lamination process in which a first work (W1) connected to a rotary lamination table (5) is pressed against a second work (W2) by a lamination roller (37) of a lamination mechanism (6) to laminate both workpieces (W1, W2);
a lamination table rotating process in which the rotary lamination table (5) is intermittently rotated and driven to wind up the first work (W1), while retracting the laminate of the first work (W1) and the second work (W2) from the lamination position, and holding a new lamination surface (31) in a lamination posture;
This method for laminating works is characterized in that a work transport step, a lamination step, and a lamination table rotation step are repeatedly and continuously performed to form a group of laminated bodies in which a first work (W1) and a second work (W2) are laminated on a lamination surface (31) of a rotary lamination table (5). The method for laminating workpieces according to claim 4, further comprising a welding step of welding and fixing the first workpiece (W1) between the lamination end of the first workpiece (W1) and the lamination roller (37) to the first workpiece (W1) below, while the outer edge of the lamination end of the first workpiece (W1) is pressed by the lamination roller (37).

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