JP5451539B2 - Work bonding apparatus and work bonding method - Google Patents

Description

  The present invention relates to, for example, a workpiece bonding apparatus and a workpiece bonding method for bonding a sheet-shaped workpiece to a flat workpiece. The workpiece bonding apparatus and the workpiece bonding method of the present invention are used, for example, when bonding a functional sheet such as a polarizing sheet, an antireflection film, an electromagnetic wave shielding film, or an ultraviolet shielding film to a liquid crystal substrate or a plasma display substrate. The Moreover, it uses also when bonding flat plate-shaped workpiece | work or sheet-like workpiece | work.

  The present applicant has previously proposed a bonding apparatus of this type (Patent Document 1). There, a conveyor device that sequentially conveys the first workpiece and the second workpiece to the bonding position, a bonding table that holds the first workpiece conveyed to the bonding position, a drive structure for the bonding table, and the like. It constitutes a bonding device. The conveyor surface of the conveyor device is formed with a breathable silk screen, a vacuum chamber for adsorbing each workpiece is disposed therein, and an adhesive roller is provided inside the vacuum chamber. At the time of pasting, the 1st work adsorbed by the pasting table and the 2nd work conveyed with the conveyor belt are made to face up and down in a pasting position, and the 2nd work is pressed against the 1st work with an adhesion roller. Paste.

JP 2009-280338 A (paragraph number 0034, FIG. 1)

  According to the bonding apparatus of patent document 1, a series of bonding processes can be performed continuously. However, since the conveyor surface of the conveyor device is formed with a breathable silk screen and the silk screen has to be stretched with a large tension in the width direction, it is necessary to use a transport chain with a special structure. There is a problem in that the structure becomes complicated and the cost increases. In addition, the first work and the second work are sequentially supplied onto the silk screen, and the first work passed to the bonding table and the second work on the silk screen are bonded together, so that the entire process waits. Inevitable that time will be long. Therefore, there is a limit to shortening the time required for the bonding process while the bonding process can be performed continuously.

  An object of the present invention is to provide a workpiece laminating apparatus and a workpiece laminating method that can shorten the time required for a series of laminating processes by shortening the waiting time between the steps, and can improve productivity as a whole. . The object of the present invention is to automatically and continuously perform each operation of supplying a workpiece, peeling a protective paper, positioning a workpiece, bonding a workpiece, and carrying out a bonded body after the bonding has been completed. Is to provide a workpiece laminating apparatus that can reduce the manufacturing cost and reduce the cost.

The workpiece | work bonding apparatus which concerns on this invention is comprised with the following each apparatus. As shown in FIG. 1, the conveyor apparatus 1 which intermittently feeds the 1st workpiece | work W1 adsorbed-held on the conveyance belt 12 toward the bonding position. A turntable 2 having a plurality of suction stands 40 on the peripheral surface, and causing the second work W2 sucked by the suction stand 40 to be intermittently rotationally displaced so as to face the first work W1 fed to the bonding position. . The 1st peeling apparatus 6 for peeling the protective paper which covers the surface of the 1st workpiece | work W1, and the 2nd peeling apparatus 7 for peeling the protective paper which covers the surface of the 2nd workpiece | work W2 . A positioning device 8 (see FIG. 3) that detects the positions of the workpieces W1 and W2 and corrects the misalignment of the workpieces W1 and W2 in the process of intermittently rotating and rotating the turntable 2. A bonding apparatus 5 that presses the first workpiece W1 after positioning onto the second workpiece W2 via the conveying belt 12 with a bonding roller 31 provided inside the conveying belt 12, and bonds both the workpieces W1 and W2. By supplying the workpieces W1 and W2, the separation of the protective paper, the positioning, and the pasting are continuously performed by the workpiece laminating apparatus constituted by each of the above devices.

  A suction stand 40 for sucking the second workpiece W2 and a detection opening 41 for detecting the position of the first workpiece W1 are alternately provided on each of the four circumferential surfaces of the turntable 2 formed in a square box shape. While the turntable 2 is intermittently rotated from 90 to 270 degrees in one direction from the initial state, the protective paper of the second work W2 is peeled off by the second peeling device 7, and the positions of both the works W1 and W2 are shifted. Is corrected by the positioning device 8, and both the workpieces W <b> 1 and W <b> 2 are bonded by the bonding roller 31. After the pasting is completed, the turntable 2 is reversely rotated 270 degrees by the turntable drive device 39 to return to the initial state, and a series of pasting processes are continuously performed.

  As shown in FIG. 2, the first peeling device 6 for the first workpiece W <b> 1 is provided above the conveyor belt 12, and the second peeling device 7 for the second workpiece W <b> 2 is provided above the turntable 2. The positioning device 8 is disposed inside the turntable 2 (see FIG. 3).

  The first support base 18 and the second support base 19 that adsorb and hold the first work W1 via the transport belt 12 and the laminating device 5 on the inside of the transport surface of the transportable belt 12 that can be vented are connected to the upper side in the transport direction. From the lower side to the lower side in the order of description (see FIG. 4). The bonding apparatus 5 includes a bonding roller 31 and a roller drive structure 34 that moves the bonding roller 31 toward the first support base 18 (see FIG. 3). The 1st support stand 18 and the 2nd support stand 19 form the comb-tooth part 20 * 21 and the groove part 22 * 23 alternately, respectively, and the mutual comb-tooth part 20 * 21 and the groove part 22 * 23 are mutually slidable freely Provide. Adsorption grooves 24 and 25 are formed on the contact surfaces of the comb teeth portions 20 and 21 with the conveyor belt 12. Accompanying the bonding operation of the bonding roller 31, the second support base 19 is retracted toward the first support base 18 by the roller drive structure 34.

  In the workpiece | work bonding method which concerns on this invention, the 1st workpiece | work W1 and the 2nd workpiece | work W2 are bonded through the following procedures. After the protective paper of the first workpiece W1 sucked and held on the transport belt 12 is peeled off by the first peeling device 6, the paper is intermittently fed toward the bonding position by the transport belt 12. The turntable 2 disposed above the bonding position is intermittently driven to rotate, the posture of the second work W2 sucked by the suction table 40 is sequentially changed, and the first work W1 fed to the bonding position is sent. And face up. In the process of sequentially changing the posture of the second workpiece W2, the protective paper of the second workpiece W2 is peeled off by the second peeling device 7, and further, the positioning device 8 provided inside the turntable 2 is used to position each of the workpieces W1 and W2. The position is detected, and the positional deviation between the workpieces W1 and W2 is corrected. The first workpiece W1 after position correction is pressed against the second workpiece W2 via the conveyor belt 12 by the laminating roller 31 provided inside the conveyor belt 12, and both the workpieces W1 and W2 are bonded. By passing through said procedure, supply of both workpiece | work W1 * W2, peeling of a protection paper, positioning, and bonding are performed continuously, It is characterized by the above-mentioned.

More specifically, the first workpiece W1 and the second workpiece W2 can be bonded through the following steps. A first suction step of sucking and holding a first work W1 by a first support 18 provided on the inner surface of the transport belt 12 via a transport belt 12 capable of ventilating the first work W1, and a first release of the protective paper of the first work W1 a first peeling step of peeling the apparatus 6, and intermittently convey the first workpiece W1 protective paper is peeled off to lamination position, attracting and holding the second supporting stand 19 provided on the inner surface of the conveyor belt 12 The second conveying step , the second adsorption step of supplying and adsorbing and holding the second workpiece W2 to the adsorption table 40 of the turntable 2 disposed above the bonding position, and the rotary table 2 being rotationally displaced, the second A second peeling step for peeling the protective paper of the workpiece W2 with the second peeling device 7, and a position at which the positioning device 8 detects the position of the first workpiece W1 conveyed to the bonding position by rotationally displacing the turntable 2 a detecting step, and intermittently rotated displacing the turntable 2, the protective sheet is peeled off The second workpiece W2 is directly opposed to the first workpiece W1 conveyed to the bonding position, the position of the second workpiece W2 is detected by the positioning device 8, and the positional deviation between both the workpieces W1 and W2 is corrected. The adjustment step and one end of the first work W1 are pressed against the second work W2 via the conveying belt 12 by the bonding roller 31, and the bonding roller 31 is moved toward the other end of the first work W1, It consists of a bonding process for bonding W1 and W2, and includes a first adsorption process, a first peeling process, a bonding conveyance process, a second adsorption process, a second peeling process, a position detection process, a position adjustment process, and bonding. The process is performed continuously.

  When the suction table 40 for sucking the second workpiece W2 and the detection opening 41 for detecting the position of the first workpiece W1 are alternately provided on each of the four circumferential surfaces of the turntable 2 formed in a square box shape, After the 2 adsorption steps, the turntable 2 is intermittently rotated up to 270 degrees by 90 degrees in one direction to perform a second peeling process, a position detection process, a position adjustment process, and a bonding process. After the pasting step is completed, the turntable 2 is reversely rotated 270 degrees to return to the initial state, and a series of pasting steps are continuously performed.

  In the bonding apparatus of the present invention, the first work W1 sucked and held on the conveyor belt 12 is intermittently fed toward the bonding position. In addition, the rotary table 2 is intermittently rotationally displaced so that the second workpiece W2 adsorbed on the adsorption table 40 faces the first workpiece W1 fed to the bonding position. Furthermore, while feeding each workpiece | work W1 * W2 to the bonding position, peeling of the protective paper of both the workpiece | work W1 * W2, positioning, and bonding were performed continuously and parallelly. In this way, when each operation such as workpiece supply, protective paper peeling, workpiece positioning, workpiece bonding, etc. is automatically performed continuously and in parallel, each processing step between each processing step is performed. The waiting time can be shortened, the time required for a series of pasting processes can be shortened, and the productivity of the pasting apparatus can be improved as a whole.

  While intermittently rotating the square box-shaped turntable 2 by 90 degrees up to 270 degrees, the protective paper of the second work W2 is peeled off, the positional deviation of both the works W1 and W2 is corrected, When W2 bonding is performed, a series of processes from supply of workpieces to bonding can be performed continuously and in parallel with no waste. Therefore, the time required for a series of bonding processes can be further shortened, and the productivity of the bonding apparatus can be further improved. In addition, when the turntable 2 is rotated backward by 270 degrees and returned to the initial state after the pasting is completed, a series of pasting operations can be repeated smoothly and without twisting of the power supply line, the pipe line, etc. Yes. Therefore, since it is not necessary to use a special structure such as a rotary joint, parts, or the like, the bonding apparatus can be configured, so that the structure of the entire apparatus can be simplified and the manufacturing cost of the bonding apparatus can be reduced as compared with the conventional apparatus.

  According to the laminating apparatus in which the first peeling device 6 for the first workpiece W1 is provided above the conveyor belt 12 and the second peeling device 7 for the second workpiece W2 is provided above the turntable 2, both workpieces W1 and Since the peeling of the protective paper of W2 can be performed simultaneously by the two peeling devices 6 and 7, the waiting time until the peeling of the protective paper is completed can be shortened. Further, when the positioning device 8 is arranged inside the turntable 2, the positioning device 8 can be arranged by effectively using the internal space of the turntable 2, so that the bonding device can be reduced in size and made compact. Further, the posture of the CCD camera 46 of the positioning device 8 can be fixed to prevent the structure of the positioning device 8 from becoming complicated, and the cost required for manufacturing the bonding device can be reduced accordingly.

  When the 1st support stand 18, the 2nd support stand 19, and the bonding apparatus 5 are arrange | positioned inside the conveyance surface of the conveyance belt 12 which can ventilate, the state which adsorbed and supported the 1st workpiece | work W1 by both the support bases 18 and 19 As it is, it can be fed to the peeling position and the bonding position. Therefore, in the process of transporting the first work W1 by the transport belt 12, the first work W1 is reliably prevented from being displaced, and the state in which the first work W1 is positioned at the supply position is bonded to the two works W1 and W2. It can be maintained until it is finished. In addition, when the first support base 18 and the second support base 19 are provided so as to be slidable relative to each other with the comb tooth portions 20 and 21 and the groove portions 22 and 23 overlapping in the front-rear direction, the space occupied by the first support base 18 is provided. The second support table 19 can be reciprocally slid using this, and both the support tables 18 and 19 can securely hold the first workpiece W1 by suction. This means that the suction support structure can be simplified while reducing the space occupied by the suction support structure of the first workpiece W1, and the overall cost of the bonding apparatus can be reduced accordingly. Furthermore, since it accompanies the bonding operation | movement of the bonding roller 31 and the 2nd support stand 19 is evacuated, while holding the 1st workpiece | work W1 by the 2nd support stand 19 from the start of bonding to the end of bonding, both The workpieces W1 and W2 can be properly and reliably bonded.

  In the work bonding method according to the present invention, while the first work W1 is intermittently fed to the bonding position by the transport belt 12, the turntable 2 is intermittently driven to rotate to the suction stand 40. The adsorbed second work W2 was made to face the first work W1 fed to the bonding position. Further, in the process of sequentially changing the posture of the second workpiece W2, the protective paper is peeled off by the second peeling device 7, the positional deviation of both the workpieces W1 and W2 is corrected, and both the workpieces W1 are changed after the last posture change. -W2 was pasted. In this way, if each work such as workpiece supply, protective paper peeling, workpiece positioning, workpiece bonding, etc. is performed automatically in a continuous and parallel manner, the waiting time for each processing is shortened. Thus, the time required for a series of bonding processes can be shortened, and the productivity when bonding both the workpieces W1 and W2 can be improved.

  In said workpiece | work bonding method, a 1st adsorption | suction process, a 1st peeling process, a bonding conveyance process, a 2nd adsorption process, a 2nd peeling process, a position detection process, a position adjustment process, and bonding When both the workpieces W1 and W2 are bonded through the process, a series of operations can be performed without waste to further improve productivity. In particular, the first suction step and the second suction step, the first peeling step and the second peeling step are performed simultaneously, and the position detection step and the position adjustment step are performed while the turntable 2 is intermittently rotated. The waiting time when performing can be further shortened, and productivity can be improved.

  The square box-like turntable 2 provided with the suction stand 40 and the detection opening 41 is intermittently rotated up to 270 degrees by 90 degrees after the second suction step, and the second peeling step, the position detection step, When the position adjusting step and the bonding step are performed, a series of processes from supplying the workpiece to bonding can be performed continuously and in parallel without waste. Therefore, the time required for a series of bonding processes can be further shortened, and the productivity of the bonding apparatus can be further improved. In addition, when the turntable 2 after the pasting is finished is rotated backward by 270 degrees to return to the initial state, a series of pasting operations are accompanied by twisting of a power supply line, a pipeline, or the like introduced into the turntable 2. It can be done smoothly and smoothly without worries. Therefore, the structure for preventing twisting such as a rotary joint can be omitted, and the cost required for the bonding equipment can be reduced accordingly.

It is a perspective view which shows schematic structure of the workpiece | work bonding apparatus which concerns on this invention. It is a top view of a workpiece bonding apparatus. It is a vertical side view of a workpiece bonding apparatus. It is a partially broken top view which shows the structure of a conveyor apparatus and a support stand. It is the sectional view on the AA line in FIG. It is the BB sectional view taken on the line in FIG. It is a side view showing rotation operation of a turntable. It is a vertical front view which shows the bonding operation | movement of a bonding roller. It is operation | movement explanatory drawing which shows the bonding operation | movement of the bonding apparatus. It is operation | movement explanatory drawing which shows the bonding operation | movement of the bonding apparatus. It is a table | surface which shows the operation | movement step of a workpiece | work bonding apparatus. It is a schematic front view which shows another Example of a workpiece | work bonding apparatus. It is a schematic plan view of the workpiece | work bonding apparatus which concerns on FIG. It is a schematic front view which shows operation | movement of the workpiece | work supply structure which concerns on FIG.

(Example) FIG. 1 thru | or FIG. 11 shows the Example of the workpiece | work bonding apparatus which concerns on this invention. In the present invention, “front / rear”, “left / right”, and “upper / lower” refer to the crossed arrows shown in FIG. In FIG. 1 and FIG. 2, the workpiece bonding apparatus is disposed above the bonding position and the conveyor apparatus 1 that intermittently feeds the first workpiece W1 toward the peeling position and the bonding position, and the second workpiece W2. The main body is composed of a turntable 2 for adsorbing and holding. A first workpiece supply device 3 and a second workpiece supply device 4 for supplying the workpieces W1 and W2 are arranged on both sides of the front portion of the conveyor device 1, and a laminating device 5 is arranged inside the conveyor device 1. It is. Above the middle part of the conveyor device 1 and above the turntable 2, a first peeling device 6 and a second peeling device 7 for peeling the protective paper covering the surfaces of the workpieces W1 and W2 are arranged. Inside the turntable 2, there is disposed a positioning device 8 that detects the positions of both the workpieces W1 and W2 and corrects the positional deviation between the workpieces W1 and W2.

  The first work W1 and the second work W2 are made of a glass substrate typified by a liquid crystal substrate or a plasma display substrate, a functional sheet such as a polarizing sheet, an antireflection film, an electromagnetic wave shielding film, or an ultraviolet shielding film. In the following examples, a case where the first workpiece W1 is a functional sheet and the second workpiece W2 is a glass substrate will be described. The pressure-sensitive adhesive layer on the surface of the functional sheet serving as the first workpiece W1 is covered with protective paper, and similarly, the surface of the glass substrate serving as the second workpiece W2 is covered with protective paper.

  The external dimensions of both the workpieces W1 and W2 are the same. For example, position indications for positioning are displayed at corresponding positions of the workpieces W1 and W2. For example, a black circle position display is displayed on the first work W1, and a position display consisting of a circle having a diameter slightly larger than the previous position display is displayed on the second work W2. As will be described later, the first work W1 and the second work W2 are positioned by the positioning device 8 using these position indications as the position reference.

  The conveyor device 1 includes a pair of left and right belt pulleys 11, 11, a breathable transport belt 12 wound around both belt pulleys 11, 11, a motor 13 that rotationally drives one belt pulley 11, and the like. The conveyor belt 12 is formed by coating a plastic material on the outer surface of the base fabric, and suction surfaces 14 for sucking the first workpiece W1 are provided at regular intervals on the surface wall of the belt. As shown in FIGS. 2 and 4, a group of fine suction holes 15 are formed in a lattice pattern on each suction surface 14. The conveyor belt 12 is driven in the direction indicated by the arrow P to sequentially convey the first workpiece W1 to the peeling position and the bonding position, and further sends the bonded body W3 that has been bonded to the discharge position. (See FIG. 2).

  Inside the conveyance surface of the conveyance belt 12, the first support base 18 and the second support base 19 that adsorb and hold the first work W <b> 1 via the conveyance belt 12, and the laminating device 5 from the upper side in the conveyance direction. They are arranged in the order of description toward the lower side (see FIG. 9A). As shown in FIGS. 4 to 6, both the first and second support bases 18 and 19 are configured by alternately forming comb-tooth portions 20 and 21 and groove portions 22 and 23 in the front-rear direction. Adsorption grooves 24 and 25 are formed in the contact surfaces (upper surfaces) of the comb teeth portions 20 and 21 with the conveyor belt 12, and the suction grooves 24 and 25 are not shown in the drawing through a passage. Connected to the source. In order to prevent the comb-tooth portions 20 and 21 and the groove portions 22 and 23 that are engaged with each other from shifting vertically, the comb-tooth portions 20 and 21 adjacent to the front and rear are supported by a common support shaft 28 (see FIG. 6). ). The support shaft 28 is fixed to the first support base 18.

  Whereas the first support base 18 is fixed to the conveyor frame, the second support base 19 is supported by the slide base 26 and is guided and supported by a guide rail 27 that guides the slide base 26 so as to be slidable left and right. Yes (see FIG. 3). The comb tooth portions 20 and 21 and the groove portions 22 and 23 of both the support bases 18 and 19 are provided so as to be relatively slidable in a state of being engaged with each other, thereby accompanying the movement of the laminating roller 31, The support table 19 can be retracted toward the first support table 18 side.

  As shown in FIG. 3, the bonding apparatus 5 includes a bonding roller 31, an air cylinder 32 that moves the bonding roller 31 to a lower standby position and an upper bonding posture, a bonding roller 31, and an air cylinder. The slide base 26 is configured to support the slide base 26 and the roller drive structure 34 that reciprocates the slide base 26 along the guide rail 27. As shown in FIG. 9A, the bonding roller 31 stands by at the home position below the bonding position, and the bonding roller 31 switched to the bonding posture is directed to the first support base 18 side. Both works W1 and W2 can be bonded by moving operation. At this time, the first work W1 is pressed against the second work W2 by the laminating roller 31 via the transport belt 12. When the bonding roller 31 is bonded and moved, the second support base 19 can accompany the bonding roller 31 and retreat, and thus the second support table 19 can be prevented from obstructing the movement of the bonding roller 31. .

  A frame 38 straddling the conveyor belt 12 forward and backward is provided at the bonding position (see FIG. 1), and the turntable 2 is provided on the frame 38 with the rotation table 2 at the lower bonding position and the upper position. It is operated up and down to the rotation position. Further, by rotating the turntable 2 in the state moved to the rotation position around the shaft 37 by the turntable driving device 38, the posture of the turntable 2 is sequentially changed from the first position to the fourth position shown in FIG. Can be changed.

  The turntable 2 has a suction table 40 for sucking and holding the second work W2 and a detection opening 41 for detecting the position of the first work W1 on the front and rear peripheral surfaces and the upper and lower peripheral surfaces of the cubic frame. Two are provided alternately. A vacuum chamber 42 is formed in the suction table 40 in a recessed manner, and an aluminum honeycomb core 43 is fitted in the opening surface (see FIG. 8), and the second workpiece W2 is sucked and held via the honeycomb core 43. Can do. The vacuum chamber 42 of each suction stand 40 is connected to a vacuum source (not shown) through a dedicated passage, and can supply vacuum pressure individually or stop supply. The suction table 40 is supported by the position adjustment structure 48. By adjusting the position of the suction table 40 with the position adjustment structure 48, the second work W2 can be positioned with respect to the first work W1.

  The first and second peeling devices 6 and 7 have the same structure, and after capturing the front left corner of the protective paper covering the surface of each workpiece W1 and W2, the guide rails 51 and 52 (see FIG. 2) The protective paper is removed while moving along the diagonal direction. The first peeling device 6 peels the protective paper of the first workpiece W1 sent to the peeling position, and at this time, the second peeling device 7 simultaneously protects the second paper W2 that is located on the upper surface of the turntable 2. Peel off.

  As shown in FIG. 3, the positioning device 8 includes a CCD camera 46 arranged in the internal space of the turntable 2 and a control unit that takes in the image of the CCD camera 46 and determines the state of misalignment between the workpieces W1 and W2. (Not shown) and a position adjustment structure 48 that adjusts the position of the suction table 40 in response to an output signal from the control unit. The control unit includes an alignment controller, a focus controller, and the like. The position adjustment structure 48 includes a uvw table that adjusts the suction table 40 forward and backward and left and right.

  As shown in FIG. 7, the turntable 2 is rotated 90 degrees from the first position to the fourth position by the turntable drive structure 39, and the second workpiece W2 is supplied therebetween, and the protective paper is peeled off. Then, both workpieces W1 and W2 are positioned and bonded. Moreover, after discharge | releasing the bonding body W3 in which bonding was complete | finished to the conveyance belt 12, it rotates 270 degree | times reversely and returns to an initial state. Below, after starting a bonding apparatus, operation | movement of each apparatus in a 4th position from a 1st position is demonstrated with the operation | movement step shown in FIG.

  In the first position, one suction stand 40 is located in front of the turntable 2 and faces the second workpiece supply device 4. In this state, the second work W2 of the first sheet is supplied to the suction table 40 by the second work supply device 4 and sucked and held (step 1). This work supply operation is performed in parallel with the supply operation of the first work W1 to the conveyor belt 12. Next, the turntable 2 is rotated 90 degrees to displace the suction stand 40 in a state where the first second workpiece W2 is sucked to the second position and lowers it to the bonding position (step 3). In the second position, the second work W2 is located on the upper surface of the turntable 2, and in this state, the second peeling device 7 is operated to peel off the protective paper of the first second work W2. (Step 4). This peeling operation is performed in parallel with the peeling operation of the first workpiece W1. Next, after raising the turntable 2 to the rotation position, the turntable 2 is rotated by 90 degrees, and the suction stand 40 in a state where the first second work W2 is sucked is displaced to the third position (step 4).

  In the third position, the first second work W2 is located on the rear surface of the turntable 2, and the other suction stand 40 is located on the front face of the turntable 2 and faces the second work supply device 4. ing. The detection openings 41 are located above and below the turntable 2. In this state, the second work W2 of the second piece is supplied to the other suction stand 40 by the second work supply device 4 and sucked (step 6). At this time, the first workpiece W1 is also simultaneously supplied onto the conveyor belt 12 (step 6). Further, the position display position of the first workpiece W1 fed to the bonding position is captured by the CCD camera 46 through the detection opening 41, and the position is stored (step 8). Next, the turntable 2 is rotated 90 degrees to displace the suction stand 40 in a state where the first second workpiece W2 is sucked to the fourth position and lowers it to the bonding position (step 9).

  In the 4th position, the 1st 2nd work W2 has faced the 1st 1st work W1 which is still in the pasting position, and opened a slight pasting gap. The bonding gap between the workpieces W1 and W2 can be selected within a range of 0.1 to 5 mm depending on the difference in the forming material, and may be approximately 2 mm. In this state, the position display position of the second workpiece W2 is captured by the CCD camera 46, and the position shift state with the position display position of the first work W1 as a reference is determined by the alignment controller. Further, the alignment controller determines the direction to be adjusted and moves the position adjusting structure 48 according to the output signal from the alignment controller to properly position both the workpieces W1 and W2 (step 10). At this time, since the second second work W2 is on the upper surface of the turntable 2, the second peeling device 7 is operated to remove the protective paper (step 11). At the same time, the first workpiece W1 is peeled off (step 11).

  When peeling of the protective paper is completed, the laminating roller 31 is switched to the laminating posture and raised, and one side end of the first work W1 is pressed against the second work W2 (step 11). Furthermore, the laminating roller 31 is moved by the roller drive structure 34 from the one side end of the first workpiece W1 to the other side end, and the laminating of both the workpieces W1 and W2 is completed (step 11). At this time, the second support 19 moves along with the bonding roller 31. After that, the bonding roller 31 is lowered to the standby position and returned to the home position, the supply of the vacuum pressure to the suction table 40 is shut off, and the bonding body W3 is discharged onto the transport belt 12. The released bonded body W3 is sent out to the discharge position when the transport belt 12 is fed next time.

  While the second support 19 and the bonding roller 31 are bonded and moved, the conveyor belt 12 is stopped, and the vacuum pressure is continuously supplied to the suction groove 25 of the second support 19. Therefore, as shown in FIG. 8, the first workpiece W1 is elastically deformed into a gentle S-shape and is inclined downward toward the second support base 19, and both the workpieces W1 and W2 are formed by the bonding roller 31. It is pasted in a state that is always open toward the traveling direction. Therefore, it can bond appropriately, forcing the air which is going to be pinched by the bonding surface to escape.

  After releasing the bonding body W3 at the fourth position, after raising it to the rotary table 2 rotation position, it is rotated 270 degrees in the opposite direction (step 12), and the suction table 40 that has released the bonding body W3 is the first. Return to the initial position. Next, the 3rd 2nd workpiece | work W2 is supplied to the adsorption stand 40 (step 13). At this time, the second work W2 of the second sheet is located at the third position on the rear surface of the turntable 2, and the position display position of the second work W1 of the second sheet fed to the bonding position is It is detected by the CCD camera 46 (step 15).

  After the turntable 2 is rotated 90 degrees, it is lowered to the bonding position, and the second second workpiece W2 is positioned at the fourth position (step 16). Correction is performed (step 17). Furthermore, the protective paper of the 3rd 2nd workpiece | work W2 is peeled (step 18), and both workpiece | work W1 * W2 is bonded by the bonding roller 31 (step 18). The third second workpiece W2 is sequentially rotated and moved to the third position and the fourth position, and positioning and bonding are performed as described above. Thus, every time the odd-numbered second workpiece W2 is bonded at the fourth position, the turntable 2 is rotated 270 degrees in the reverse direction to return to the initial state. Thereafter, by repeating the above, the supply of the first workpiece W1 and the second workpiece W2, the peeling of the protective paper, the positioning of the workpieces W1 and W2, and the bonding can be performed continuously. Subsequent operation steps will be described later.

  The workpiece | work bonding method which concerns on this invention can be performed in the following procedures. After the protective paper of the first workpiece W1 sucked and held on the transport belt 12 is peeled off by the first peeling device 6, the paper is intermittently fed toward the bonding position by the transport belt 12. The rotary table 2 disposed above the bonding position is intermittently driven to rotate, the posture of the second workpiece W2 adsorbed by the adsorption table 40 is sequentially changed, and the first workpiece W1 fed to the bonding position and Make them face up. In the process of sequentially changing the posture of the second work W2, the protective paper of the second work W2 is peeled off by the second peeling device 7, and further, each of the workpieces W1 and W2 is read by the positioning device 8 provided inside the turntable 2. Is detected, and the positional deviation between the workpieces W1 and W2 is corrected. The first workpiece W1 after position correction is pressed against the second workpiece W2 via the conveyor belt 12 by the laminating roller 31 provided inside the conveyor belt 12, and both the workpieces W1 and W2 are bonded. Thereby, supply of both the workpiece | work W1 * W2, peeling of a protection paper, positioning, and bonding are performed continuously, It is characterized by the above-mentioned.

Specifically, the first workpiece W1 and the second workpiece W2 can be bonded through the following steps.
A first suction step of sucking and holding the first work W1 by the first support base 18 via the transport belt 12 capable of aeration.
A peeling conveyance step of feeding the first work W1 sucked and held in the first suction step to the peeling position.
A first peeling step of peeling the protective paper of the first workpiece W1 by the first peeling device 6;
The bonding conveyance process which conveys the 1st workpiece | work W1 from which protective paper was peeled to the bonding position, and adsorb | sucks it with the 2nd support stand 19 provided in the inner surface of the conveyance belt 12. FIG.
A second suction step in which the second workpiece W2 is supplied to the suction table 40 of the turntable 2 and sucked and held.
A second peeling step in which the rotating table 4 is rotationally displaced and the protective paper of the second workpiece W2 is peeled off by the second peeling device 7.
A position detection step in which the position of the first workpiece W1 conveyed to the bonding position is detected by the positioning device 8 by rotationally displacing the turntable 2.
The position of the second work W2 is detected by the positioning device 8 by rotating the turntable 2 so that the second work W2 from which the protective paper has been peeled faces the first work W1 conveyed to the bonding position. And a position adjusting step for correcting the positional deviation between the workpieces W1 and W2.
One end of the first workpiece W1 is pressed against the second workpiece W2 by the laminating roller 31 via the conveyor belt 12, the laminating roller 31 is moved toward the other end of the first workpiece W2, and both the workpieces W1 and W2 are moved. The pasting process to paste.

  In said manufacturing method, the peeling conveyance process which feeds the 1st workpiece | work W1 adsorbed-held at the 1st adsorption | suction process to a peeling position can be abbreviate | omitted. In this case, after the first work W1 is supplied onto the transport belt 12 by the first work supply device 3, the protective paper can be peeled and removed by the first peeling device 6 as it is.

  When the suction surface for sucking the second workpiece and the detection opening for detecting the position of the first workpiece are alternately provided on each of the four peripheral surfaces of the turntable 2 formed in a square box shape, the second suction is performed. After the process, the rotary table is intermittently rotated up to 270 degrees by 90 degrees in one direction, and the second peeling process, the position detecting process, the position adjusting process, and the bonding process are performed. Furthermore, after a bonding process is complete | finished, a turntable is reversely rotated 270 degree | times, it returns to an initial state, and it is made to perform a series of bonding processes continuously.

  The operation status of each device in each of the above steps will be described using the operation explanatory diagrams shown in FIGS. 9 and 10 together with the operation steps shown in FIG. Here, the operation after the time point when the turntable 2 first rotates 270 degrees will be described. After the turntable 2 is rotated 90 degrees from the first position three times, adjusting the positional deviation of both the workpieces W1 and W2 (step 19), peeling of the protective paper of the second workpieces W1 and W2; The first workpieces W1 and W2 are bonded together (step 11). Thereafter, the turntable 2 is raised to the rotational position, and reversely rotated 270 degrees to return to the initial state of the first position (step 12). In the state returned to the initial state, both the third workpieces W1 and W2 are supplied (step 13, see FIG. 9A), and at the same time, the position of the first workpiece W1 is detected (step 15).

  When the turntable 2 is rotated 90 degrees from the first position and lowered to the bonding position (step 16), the misalignment of both the workpieces W1 and W2 is corrected (see step 17, FIG. 9B), 3 sheets The protective paper of both eyes W1 and W2 is peeled off (see step 18, FIG. 9 (c)), and the second workpieces W1 and W2 are bonded together (see step 18 and FIG. 10 (a)). ). When the turntable 2 is raised to the rotation position and rotated 90 degrees from the second position (step 19), both the fourth workpieces W1 and W2 are supplied (step 20, see FIG. 10 (b)). Then, the position of the first workpiece W1 is detected (step 22). Further, when the turntable 2 is rotated 90 degrees from the third position and lowered to the bonding position (step 23), the positional deviation between both the works W1 and W2 is corrected (step 24), and both the fourth work pieces The protective paper of W1 and W2 is peeled off, and the third workpieces W1 and W2 are bonded (step 25). After this, the turntable 2 is again rotated backward 270 degrees to return to the first position, and supply of both workpieces W1 and W2, peeling of protective paper, correction of misalignment, and pasting of both workpieces W1 and W2 are continued. And do it.

  According to said bonding apparatus, while conveying the 1st workpiece | work W1 intermittently to the bonding position with the conveyor apparatus 1, the 2nd workpiece | work W2 adsorb | sucked to the suction stand 40 of the turntable 2 is intermittently rotationally displaced. It can be made to face in a bonding position. In addition, while the second workpiece W2 is intermittently rotationally displaced to the bonding position, both the workpieces W1 and W2 are peeled off, the displacement is corrected, and the next workpiece is supplied in parallel. It is possible to shorten the waiting time when supplying the workpiece, peeling the protective paper, positioning, and bonding.

  Therefore, according to said bonding apparatus and workpiece | work bonding method, it can shorten the waiting time between each process, can shorten the time which a series of bonding processes require, and can improve the productivity of bonding process as a whole. Become. Moreover, each operation | work of supply of a workpiece | work, peeling of a protective paper, positioning of a workpiece | work, bonding of a workpiece | work, and carrying out of the bonding body which has completed bonding can be performed continuously and concurrently. Further, each time the turntable 2 is turned 270 degrees, the feed line, the signal line, and the pipe line provided between the frame 38 and the turntable 2 are rotated by rotating 270 degrees in the opposite direction to return to the initial state. Can be prevented from twisting. Therefore, it is not necessary to use a rotary joint or the like, and it is possible to provide a workpiece bonding apparatus that can simplify the entire structure of the bonding apparatus, reduce manufacturing costs, and reduce costs.

  FIG. 12 shows another embodiment of the bonding apparatus according to the present invention. There, the protective paper was peeled off while feeding the web 54 of the first work W1 wound up in a roll shape, cut into a predetermined length, and supplied to the supply position of the conveyor belt 12. Specifically, the cutter 55 arranged facing the upper side in the transport direction of the supply position is guided along the guide rail 56 so as to be movable back and forth. The operation range of the cutter 55 is indicated by a symbol Z in FIG. Further, the cutter base 57 that supports the guide rail 56 is guided by the guide rail 61 so as to be capable of reciprocating left and right along the conveyance surface of the conveyance belt 12. The web 54 fed out from the roll-shaped workpiece web 58 is reversely guided by a guide roller 59 supported by a cutter table 57, and only the protective paper is taken up by the take-up roller 60 while passing through the guide roller 59. It is done.

  The first workpiece W1 is supplied as follows. First, as shown in FIG. 14A, the cutter table 57 waiting at the previous cutting position is moved in the conveying direction of the conveying belt 12 while rotating the workpiece web 58 and the winding roller 60 in the feeding direction. The web 54 is driven to feed the web 54 to the supply position by a predetermined length. At this time, the web 54 placed on the transport belt 12 is sucked and held by the first support base 18.

  Next, as shown in FIG. 14B, the cutter table 57 is returned to the cutting position and stopped while only the winding roller 60 is driven to wind. In this state, the cutter 55 is slid forward along the guide rail 56, whereby the first workpiece W1 having a predetermined length can be supplied to the supply position on the conveyor belt 12. Since others are the same as the previous embodiment, the same reference numerals are assigned to the same members, and descriptions thereof are omitted. As described above, when the cutter base 57 is moved and the web 54 is supplied onto the conveyor belt 12, the cut end of the web 54 can be accurately fed to the suction surface 14 and sucked. Further, the cutting length of the web 54 can be accurately defined by the moving distance of the cutter table 57.

  In the above embodiment, the CCD camera 46 of the positioning device 8 is disposed inside the turntable 2 formed in a square box shape, but this is not necessary. For example, when the two position adjusting structures 48 and the suction table 40 are provided back to back, the CCD camera 46 can be provided outside the turntable 2. In this case, the CCD camera 46 is preferably supported so that the posture can be changed between a position corresponding to the first work W1 and a position corresponding to the second work W2. When the CCD camera 46 is provided outside the turntable 2, the cross section of the turntable 2 is formed in a polygonal shape such as a regular triangle, a pentagon, or a hexagon, and the suction table 40 is provided on each side surface. it can.

  The workpieces W1 and W2 can be supplied by a conveyor device, or the workpieces W1 and W2 stacked on the stocker can be sequentially supplied by the first and second supply devices 3 and 4. . Moreover, if necessary, supply of each workpiece | work W1 * W2 and taking out of the bonding body W3 may be performed manually. The detection opening 41 can be formed by a hole provided in a wall facing the CCD camera 46.

  If a plurality of the bonding apparatuses of the present invention are prepared, a plurality of functional sheets are laminated on one side of the glass substrate by sequentially performing a bonding process in each bonding apparatus, or a glass substrate. For example, when a functional sheet is bonded to both front and back surfaces, the work can be efficiently performed. The turntable 2 can be arranged in a state where the rotation center axis is vertical or in an oblique state.

DESCRIPTION OF SYMBOLS 1 Conveyor apparatus 2 Turntable 3 1st workpiece | work supply apparatus 4 2nd workpiece | work supply apparatus 5 Bonding apparatus 6 1st peeling apparatus 7 2nd peeling apparatus 8 Positioning apparatus 12 Conveyor belt 18 1st support stand 19 2nd support stand 31 Pasting Combined roller 39 Turntable drive device 40 Suction table 41 Detection opening W1 First work W2 Second work W3 Bonded body

Claims (7)

A conveyor device (1) for intermittently feeding the first workpiece (W1) adsorbed and held on the conveyor belt (12) toward the bonding position;
A first workpiece (W1) having a plurality of suction platforms (40) on the peripheral surface, intermittently rotationally displaced the second workpiece (W2) sucked by the suction platform (40), and fed to the bonding position. ) Turntable (2)
A first peeling device (6) for peeling the protective paper covering the surface of the first workpiece (W1), and a second peeling device (7) for peeling the protective paper covering the surface of the second workpiece (W2 ). When,
A positioning device (8) that detects the position of each work (W1, W2) in the process of intermittently rotating the turntable (2) and corrects the misalignment of both works (W1, W2);
The first workpiece (W1) after positioning is pressed against the second workpiece (W2) via the conveyance belt (12) by the laminating roller (31) provided inside the conveyance belt (12), and both workpieces (W1・ Equipped with a bonding device (5) for bonding W2),
A workpiece bonding apparatus characterized by continuously supplying both workpieces (W1 and W2), peeling the protective paper, positioning, and bonding. A suction stand (40) for sucking the second work (W2) to each of the four circumferential surfaces of the turntable (2) formed in a square box shape, and a detection opening (41) for detecting the position of the first work (W1). And are provided alternately,
While the turntable (2) is intermittently rotated from 90 to 270 degrees in one direction from the initial state, the protective paper of the second work (W2) is peeled off by the second peeling device (7), and both works (W1 · W2) can be misaligned with the positioning device (8), and both workpieces (W1 · W2) can be bonded with the bonding roller (31).
The work piece according to claim 1, wherein the turntable (2) after the bonding is finished is reversely rotated by 270 degrees with the turntable drive device (39) to return to the initial state, and a series of bonding processes are continuously performed. Bonding device. A first peeling device (6) for the first workpiece (W1) is provided above the conveyor belt (12), and a second peeling device (7) for the second workpiece (W2) is provided on the turntable (2). Provided above,
The workpiece bonding apparatus according to claim 2, wherein the positioning device (8) is disposed inside the turntable (2). A first support base (18) and a second support base (19) for adsorbing and holding the first work (W1) via the transport belt (12) inside the transport surface of the transportable belt (12) capable of ventilation; The bonding device (5) is arranged in the order of description from the upper side to the lower side in the conveying direction,
The laminating device (5) includes a laminating roller (31) and a roller driving structure (34) for moving the laminating roller (31) toward the first support base (18).
The first support base (18) and the second support base (19) have comb teeth portions (20, 21) and groove portions (22, 23) alternately formed. 21) and the grooves (22, 23) are slidable relative to each other,
Adsorption grooves (24, 25) are formed on the contact surfaces of the comb teeth (20, 21) with the conveyor belt (12),
Accompanying the bonding operation of the bonding roller (31), the second support base (19) is retracted and moved toward the first support base (18) by the roller drive structure (34). The workpiece bonding apparatus described in 1. After the protective paper of the first workpiece (W1) adsorbed and held on the conveyor belt (12) is peeled off by the first peeling device (6), it is intermittently fed toward the bonding position by the conveyor belt (12). ,
The turntable (2) arranged above the bonding position is intermittently driven to rotate, and the posture of the second workpiece (W2) sucked by the suction table (40) is sequentially changed and fed to the bonding position. Facing the first work (W1) made,
In the process of sequentially changing the posture of the second workpiece (W2), the protective paper of the second workpiece (W2) is peeled off by the second peeling device (7), and further, a positioning device provided inside the turntable (2) In (8), the position of each workpiece (W1, W2) is detected and the positional deviation between both workpieces (W1, W2) is corrected,
The first workpiece (W1) after position correction is pressed against the second workpiece (W2) via the conveyor belt (12) by the laminating roller (31) provided inside the conveyor belt (12). (W1 / W2) can be pasted,
Supplying both works (W1 and W2), peeling of protective paper, positioning, and pasting are performed in succession. A first suction step of sucking and holding a first work (W1) by a first support (18) provided on an inner surface of the transport belt (12) via a transport belt (12) capable of venting;
A first peeling step of peeling the protective paper of the first workpiece (W1) with the first peeling device (6);
A bonding conveyance step of intermittently conveying the first work (W1) from which the protective paper has been peeled off to the bonding position, and adsorbing and holding the first work (W1) on the inner surface of the conveying belt (12); ,
A second suction step of feeding and holding the second workpiece (W2) to the suction table (40) of the turntable (2) disposed above the bonding position ;
A second peeling step of rotationally displacing the turntable (2) and peeling the protective paper of the second workpiece (W2) with the second peeling device (7);
A position detection step of rotating the turntable (2) and detecting the position of the first work (W1) conveyed to the bonding position by the positioning device (8);
The second workpiece (W2) from which the rotating paper (2) is intermittently rotationally displaced and the protective paper is peeled off is directly opposed to the first workpiece (W1) conveyed to the bonding position. A position adjusting step of detecting the position of (W2) by the positioning device (8) and correcting the positional deviation of both the workpieces (W1, W2);
One end of the first workpiece (W1) is pressed against the second workpiece (W2) via the conveying belt (12) by the laminating roller (31), and the laminating roller (31) is moved to the other end of the first workpiece (W1). headed by moving, Ri Do and a bonding step of bonding the two workpieces (W1 · W2),
Workpiece bonding characterized by continuously performing a first adsorption process, a first peeling process, a bonding conveyance process, a second adsorption process, a second peeling process, a position detection process, a position adjustment process, and a bonding process. Method. A suction stand (40) for sucking the second work (W2) to each of the four circumferential surfaces of the turntable (2) formed in a square box shape, and a detection opening (41) for detecting the position of the first work (W1). And are provided alternately,
After the second adsorption step, the turntable (2) is intermittently rotated up to 270 degrees in 90 degrees in one direction, and the second peeling step, the position detection step, the position adjustment step, and the bonding step are performed. Do,
The work bonding method according to claim 6, wherein after the bonding step is finished, the turntable (2) is rotated backward by 270 degrees to return to the initial state, and a series of bonding steps are continuously performed.

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