JP2008063059A - Pressure sensitive adhesive sheet sticking apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve quality of a finished product of a pressure sensitive adhesive sheet sticking apparatus for sticking a pressure sensitive adhesive sheet on an object to be stuck such as a glass substrate while cutting the pressure sensitive adhesive sheet into a required length. <P>SOLUTION: In an pressure sensitive adhesive sheet peeling and delivering part 9, the pressure sensitive adhesive sheet sticking apparatus presses and sticks the pressure sensitive adhesive sheet peeled from a belt-shape peeling sheet and delivered to a surface to be stuck of the glass substrate 1 on the surface to be stuck of the glass substrate 1 by a sticking roller 14. A cutting means 38 for cutting the belt-shape pressure sensitive adhesive sheet into a unit pressure sensitive adhesive sheet of the predetermined length is provided at an upper stream side of the pressure sensitive adhesive sheet peeling and delivering part 9 in a belt-shape base material feeding route and the cutting means 38 is provided with a cutting edge 46 for cutting only a belt-shape pressure sensitive adhesive sheet on a belt-shape peeling sheet in a width direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention uses a strip-like base material in which a strip-like adhesive sheet continuous in the length direction of the strip-like release sheet is detachably pasted on the continuous strip-like release sheet, and the adhesive of the required length peeled from the strip-like release sheet. The present invention relates to an adhesive sheet sticking device for sticking a sheet on a sticking surface of a sticking object.

For example, as a pressure-sensitive adhesive sheet sticking device that can be used when sticking various optical function pressure-sensitive adhesive sheets to a surface glass substrate of a large flat display such as a plasma television, as described in Patent Document 1, the above-mentioned is applied to a continuous strip-shaped release sheet. Using a strip-like base material to which a strip-like adhesive sheet continuous in the length direction of the strip-like release sheet is releasably attached, this strip-like base material is sent to the adhesive sheet peeling and sending unit arranged beside the movement path of the object to be stuck The pressure-sensitive adhesive sheet is peeled off from the strip-shaped release sheet and sent toward the application surface of the object to be adhered by the adhesive roller by the application roller on the application surface of the object to be adhered. A pressure-sensitive adhesive sheet sticking device is known. In this type of pressure-sensitive adhesive sheet sticking device, it is necessary to cut a continuous belt-like pressure-sensitive adhesive sheet in accordance with the size of the area to be stuck in the object to be stuck. In the configuration described in Patent Document 1, the width of the belt-like pressure-sensitive adhesive sheet is reduced. Cutting parallel to the length direction (feed direction) to match the width of the area to be pasted is performed by cutting both sides of the belt-like substrate in the middle of feeding with a slitter along the length direction (feed direction). The widthwise cutting for adjusting the band-like pressure-sensitive adhesive sheet to the length of the area to be stuck is performed on the belt-like pressure-sensitive adhesive sheet which is peeled from the belt-like release sheet and is in a tension state between the pressure-sensitive adhesive sheet peeling and feeding unit and the sticking roller. It was something to do.
Japanese Patent Laid-Open No. 11-193172

  In the cutting method in the width direction of the belt-like pressure-sensitive adhesive sheet in the conventional pressure-sensitive adhesive sheet sticking apparatus as described above, the cutting position is an intermediate position between the pressure-sensitive adhesive sheet peeling-out part and the sticking roller, and the state is peeled from the belt-like peeling sheet Cutting the strip-shaped adhesive sheet (with the adhesive surface exposed), and the cutting surface of the object to be adhered before the adhesive sheet is exposed just below the cutting position, the cutting action by the cutter There is a high possibility that dust-like chips generated sometimes adhere to the adhesive surface of the adhesive sheet or the adherend surface of the adherend. Moreover, compared to the case where the belt-like adhesive sheet is sheared in the width direction on the fixed smooth receiving surface, the belt-like pressure-sensitive adhesive sheet in a state of being tensioned in the air is pushed in the width direction by the cutter. The amount of dusty chips generated is also increased. Therefore, the frequency of occurrence of defective products in which dust chips are sandwiched between the surface to be adhered and the pressure-sensitive adhesive sheet affixed thereto has been a very serious problem in practice. In addition, it is necessary to temporarily stop the movement of the adherend (drawing of the adhesive sheet) in the process of sticking the adhesive sheet to the adherend for cutting in the width direction of the belt-like adhesive sheet, which increases the cycle time. Due to the problem and the width direction cutting method as described above, it is necessary to have a suction means to pull up the free end of the adhesive sheet cut just before the front and rear two-stage sticking roller and the lower-side sticking roller However, there is also a problem that the structure of the pressure-sensitive adhesive sheet peeling and feeding part is complicated.

  An object of the present invention is to provide an adhesive sheet sticking device that can solve the conventional problems as described above. In the present invention described in claim 1, reference numerals of the embodiments described later are used. If it attaches and shows, the strip | belt-shaped base material 12 on which the strip | belt-shaped adhesive sheet 12b continuous in the length direction of the said strip | belt-shaped peeling sheet 12a was stuck on the continuous strip-shaped peeling sheet 12a so that peeling could be peeled was attached. ) Is fed to the adhesive sheet peeling / delivery part 9 disposed on the side of the movement path, and the adhesive sheet peeling / delivery part 9 is peeled off from the strip-like release sheet 12a and the adherend surface of the adherend (glass substrate 1). A pressure-sensitive adhesive sheet attaching apparatus for pressing and sticking the pressure-sensitive adhesive sheet 12b sent to the surface of the object (glass substrate 1) by a sticking roller 14 onto the surface to be stuck (glass substrate 1). A cutting means 38 for cutting into a receiving sheet is disposed in the belt-like base material feeding path, which is better than the pressure-sensitive adhesive sheet peeling / feeding section 9, and this cutting means 38 only removes the belt-like pressure-sensitive adhesive sheet 12b on the belt-like peeling sheet 12a. The cutting blade 46 that cuts in the width direction is provided.

  In carrying out the present invention with the above-described configuration, specifically, as described in claim 2, the cutting means 38 is configured to be movable along the belt-shaped substrate feeding path, and the cutting means 38 is moved. By doing so, the length of the unit pressure-sensitive adhesive sheet can be changed in accordance with the length of the area to be adhered of the object to be adhered (glass substrate 1).

  In the width direction cutting of the belt-shaped adhesive sheet by the cutting means 38, when the objects to be adhered (glass substrate 1) are supplied batchwise one by one to the adhesive sheet affixing device, one object (glass) After completion of the adhesive sheet attaching process to the substrate 1), during the preparation time until the next object to be attached (glass substrate 1) is set at the adhesive sheet attaching start position equipped with this adhesive sheet attaching apparatus, This can be performed while the feeding of the belt-like substrate 12 is stopped, and in order to each sticking area of the sticking object in turn with respect to the sticking object moving continuously on the sticking object moving path In the continuous supply method in which the adhesive sheet is applied, the feeding of the belt-like substrate 12 is stopped during the waiting time until the start of the next application area arrives after the application of the adhesive sheet to one application area is completed. What you can do with Kill.

  That is, in the pressure-sensitive adhesive sheet sticking device of the present invention, it is possible to cut the belt-like pressure-sensitive adhesive sheet 12b in the width direction with respect to the belt-like base material 12 in the feeding stop state, and therefore, conventionally known various types of cutting means are used. In particular, as described in claim 3, a configuration including a traveling cutting blade 46 that travels in the width direction of the strip-shaped substrate 12 and a strip-shaped substrate receiving surface 39 a that faces the traveling cutting blade 46. It is desirable to use the cutting means 38. In this case, as described in claim 4, the traveling cutting blade 46 of the cutting means 38 is composed of a circular blade body 50 whose circular outer periphery is a blade edge, and the circular blade body 50 is arranged around the circular center. In addition to being pivotally supported, it is possible to provide a fixture 61 for fixing the circular blade body 50 in a non-rotatable manner during a cutting action.

  Further, when the configuration described in the third or fourth aspect is employed, the cutting means 38 is provided on both sides of the vertical path portion 11B in the feeding path of the belt-like substrate 12 as described in the fifth aspect. A pair of left and right parallel rod-shaped members 39, 40 arranged is provided, a rail 48 for supporting and guiding the traveling cutting blade 46 is laid on one rod-shaped member 40, and the belt-shaped base material receiving surface 39 a is disposed on the other rod-shaped member 39. Can be provided. Further, in this case, as described in claim 6, the cutting means 38 is configured to be horizontally movable along the horizontal path portion 11 </ b> A in the feeding path of the belt-shaped substrate 12, and according to claim 2. Similarly to the configuration, by moving the cutting means 38, the length of the unit adhesive sheet can be changed according to the length of the surface to be attached (glass substrate 1) of the object to be attached (the glass substrate 1). Are provided with belt-like base material guide rollers 33 and 34 for forming a vertical path portion 11B in the horizontal path portion 11A of the belt-like base material 12, and the pair of left and right parallel bar members 39 on the left and right sides of the vertical path portion 11B. , 40 can be arranged.

  Furthermore, as described in claim 7, only the belt-like release sheet 12 a is sent from the belt-like base material 12 that is sent in the same direction as the moving direction of the adherend (glass substrate 1) to the pressure-sensitive adhesive sheet peel-off portion 9. The turn guide 13 that reverses the strip-shaped adhesive sheet 12b from the strip-shaped release sheet 12a and sends the strip-shaped adhesive sheet 12b to the position adjacent to the feed direction of the strip-shaped adhesive sheet 12b from the turn guide 13 is moved. In contrast, the adhesive roller 14 is provided between the turn guide 13 and the moving path of the object to be adhered (glass substrate 1), and is disposed toward the side where the adhesive roller 14 is located. And an air discharge pipe 29 for discharging air.

  According to the pressure-sensitive adhesive sheet sticking apparatus of the present invention having the above-described configuration, the width direction cutting means for cutting the belt-like pressure-sensitive adhesive sheet into unit pressure-sensitive adhesive sheets having a predetermined length that matches the length of the surface to be stuck is peeled off the pressure-sensitive adhesive sheet. The adhesive sheet is arranged in the belt-shaped substrate feeding path, which is better than the delivery unit, and is configured to cut only the belt-like adhesive sheet on the belt-like release sheet in the width direction by the cutting blade of this cutting means. The position of the cutting means will be separated from the peeling and sending part to the upper side by at least the length of the area to be adhered of the object to be adhered. And since the strip | belt-shaped adhesive sheet of the state affixed on the strip | belt-shaped peeling sheet is cut | disconnected, the dust-like chips scattered at the time of the cutting | disconnection of this strip | belt-shaped adhesive sheet are very few. Therefore, a small amount of dust-like chips generated at the position of the cutting means moves adjacent to the pressure-sensitive adhesive sheet peeling and feeding part, and the pressure-sensitive adhesive surface of the material to be pasted before sticking the pressure-sensitive adhesive sheet or just before being stuck. The possibility of adhering to the adhesive surface of the sheet becomes extremely small or none. That is, the generation of defective products in which dust chips are sandwiched between the application surface of the object to be applied and the pressure-sensitive adhesive sheet attached thereto is almost eliminated, and a high-quality product can be produced efficiently.

  Moreover, since the belt-like pressure-sensitive adhesive sheet sent from the pressure-sensitive adhesive sheet peeling / feeding part can be simply pressed and pasted on the surface to be stuck with a sticking roller, the pressure-sensitive adhesive sheet includes a sticking roller as compared with the conventional one. The configuration of the peeling delivery unit itself is simple and can be configured at low cost. Furthermore, it is no longer necessary to temporarily stop the movement of the adherend (drawing of the adhesive sheet) during the pasting process of the adhesive sheet to the adherend to cut the widthwise direction of the belt-like adhesive sheet. The cycle time of sticking one adhesive sheet to an object can be shortened, and work efficiency can be improved.

  In addition, according to the structure of Claim 2, even when the length of the to-be-attached area | region of the to-be-attached to-be-treated object fluctuates, a cutting | disconnection means is moved and between the said cutting | disconnection means and an adhesive sheet peeling delivery part The path length is the same as the length of the area to be adhered to the object to be adhered, or when the length of the area to be adhered is short, it is changed to an integral multiple of the length of the object to be newly handled. Although it is possible to easily obtain a unit pressure-sensitive adhesive sheet having a length suitable for the length of the area to be pasted, in some cases, without changing the position of the cutting means, the cutting means and the pressure-sensitive adhesive sheet peeling and feeding unit It is also possible to change the path length between them by a path length changing means using a dancer roller or the like.

  Moreover, according to the structure of Claim 3, a strip | belt-shaped base material is pinched | interposed between a strip | belt-shaped base-material receiving surface and a traveling cutting blade, and only the strip | belt-shaped adhesive sheet part of a strip | belt-shaped base material is carried out by the travel of the said traveling cutting blade. Because it can be cut, even a very thin film-like (thin film) belt-like adhesive sheet can accurately cut only the belt-like adhesive sheet part, and it is not a push-cut as in the past. Since it can be sheared, the amount of dusty chips generated can be greatly reduced.

  When adopting the configuration according to claim 3, according to the configuration according to claim 4, even if the roundness accuracy of the circular blade body is somewhat low, the circular blade is fixed without being rotated during the actual cutting action. Since only a part of the edge can be used for cutting, as long as the gap between the band-shaped substrate receiving surface before the cutting operation and the blade edge of the circular blade body is accurately adjusted, the band-like adhesive can be accurately obtained. Only the sheet portion can be cut. Moreover, before the wear level of the blade edge part used for cutting exceeds the allowable range, the circular blade body is rotated by the required angle to adjust the new blade edge part for cutting. A good cutting action can be continued.

  Furthermore, when the configuration described in claim 3 or 4 is adopted, the gap between the belt-shaped substrate receiving surface and the traveling cutting blade must be maintained with high accuracy. For example, since one rod-like member provided with a rail that supports and guides the traveling cutting blade and the other rod-like member provided with the belt-like base material receiving surface are arranged in parallel in the horizontal direction, not in the vertical direction, these Even if the two long and heavy rod-shaped members are bent and deformed by gravity, and the bending allowance is not the same, the horizontal horizontal distance between the two rod-shaped members juxtaposed in the horizontal direction That is, there is substantially no change in the distance between the cutting blade and the belt-like substrate receiving surface. Therefore, the gap between the belt-shaped substrate receiving surface and the traveling cutting blade can be maintained with high accuracy over a long period of time, and a desired cutting action can always be performed.

  Furthermore, according to the structure of Claim 6, the length suitable for the length of the to-be-attached area | region of the to-be-attached object was moved similarly to when the cutting means is moved and the structure of Claim 2 is employ | adopted. Unit adhesive sheet can be obtained, but the moving direction of the cutting means at that time is horizontal, not vertical up and down, so the height of the entire device is lowered, installation stability and maintenance workability In addition, the belt-like base material feed path portion corresponding to the cutting means can be set in the vertical direction so that the function and effect when the configuration according to claim 5 is adopted can also be obtained.

  Moreover, according to the structure of Claim 7, before the front-end | tip part of the adhesive sheet sent out from a turn guide contacts the said to-be-applied surface before it is pressed by the to-be-attached surface of an to-be-attached object with a sticking roller. The tip of the adhesive sheet that is prevented by the air flow discharged from the air discharge pipe and is sent to the application roller side in the state of being lifted from the application surface of the application object by the air flow is applied to the application object. The sticking roller that advances and moves to the surface side can be pressed against the surface to be pasted to start the pasting action, so that good pasting without air bubbles remaining between the surface to be pasted and the adhesive sheet Can be realized. When this configuration is implemented in a conventional configuration in which dust-like chips are generated in the pressure-sensitive adhesive sheet peeling and feeding section, the generated dust-like chips are likely to adhere to the pressure-sensitive adhesive surface of the pressure-sensitive adhesive sheet due to the air flow and can be put to practical use. However, since the configuration of the present invention does not generate dust-like chips in the pressure-sensitive adhesive sheet peeling and feeding section, it is possible to realize a configuration in which the front end portion of the pressure-sensitive adhesive sheet is urged toward the sticking roller by an air flow. It became.

  A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a glass substrate which is an object to be stuck, which is set at a fixed position on a horizontal reciprocating table 2. The The horizontal reciprocating table 2 linearly reciprocates at a constant speed on the guide rails 2a and 2b between the unloading work position P1 of the glass substrate 1 and the adhesive sheet sticking start position P2, and moves to the unloading work position P1. Is a glass substrate front end positioning and fixing guide 3 that coincides with the front end of the horizontal reciprocating table 2 that stops at the unloading work position P1, and a lateral standby position of the horizontal reciprocating table 2 that stops at the unloading work position P1. A glass substrate side edge positioning movable guide 4 that can be horizontally reciprocated in the left and right Y directions perpendicular to the table movement direction (hereinafter referred to as the front and rear X direction) between the glass substrate side edge positioning positions on the table 2 is provided. Yes.

  Thus, on the horizontal reciprocating table 2 stopped at the unloading work position P 1, the glass substrate side edge positioning movable guide 4 has advanced to the glass substrate side edge positioning position on the horizontal reciprocating table 2. Accordingly, when the glass substrate 1 is placed on the horizontal reciprocating table 2 stopped at the unloading work position P1, the front end of the glass substrate 1 comes into contact with the glass substrate front end positioning and fixing guide 3 and the glass substrate 1 The glass substrate 1 can be accurately positioned at a predetermined position in both the X and Y directions on the horizontal reciprocating table 2 by placing the side so as to contact the glass substrate side positioning movable guide 4. When the glass substrate 1 is placed at a predetermined position, the glass substrate side positioning movable guide 4 is moved back to the standby position, whereby the fixed guide 3 and the movable guide 4 are unloaded and left at the work position P1, and the horizontal reciprocating motion is performed. The table 2 can be started to travel to the adhesive sheet sticking start position P2.

  The traveling drive means 5 of the horizontal reciprocating table 2 may be of any type, but in this embodiment, a rotating screw shaft 6 supported parallel to the front-rear X direction at a fixed position below the moving path of the horizontal reciprocating table 2. And a motor 7 that drives the rotary screw shaft 6 to rotate forward and backward, and a female screw body 8 that is provided at the bottom of the horizontal reciprocating table 2 and is screwed into the rotary screw shaft 6. Thus, the horizontal reciprocating table 2 can be unloaded and moved back and forth at a constant speed between the work position P1 and the adhesive sheet sticking start position P2.

  An adhesive sheet peeling and feeding unit 9 is provided above the front end of the horizontal reciprocating table 2 that stops at the adhesive sheet sticking start position P2, and a strip-like release sheet take-up device unit is located above the horizontal reciprocating table 2. 10 and a belt-like pressure-sensitive adhesive sheet cutting device portion 11 located above the belt-like release sheet winding device portion 10 are provided. As shown in FIG. 1B, the belt-like base material 12 used in the present invention peels off a continuous belt-like pressure-sensitive adhesive sheet (an optical functional pressure-sensitive adhesive sheet affixed to the glass substrate 1) 12b on one side of a continuous belt-like release sheet 12a. The width is wider than the width of the area to be pasted on the glass substrate 1 (the length in the left-right Y direction), and the required length is wound in a roll shape.

  The structure of the pressure-sensitive adhesive sheet peeling / feeding unit 9 is basically well known in the art. As shown in FIG. 3, a turn guide 13 for peeling and feeding the belt-like pressure-sensitive adhesive sheet 12b from the belt-like peeling sheet 12a, And a sticking roller 14 which can be moved up and down provided at a position adjacent to the feeding direction of the belt-like adhesive sheet 12b. The affixing roller 14 is supported by the elevating guide 15 so as to be movable up and down and is pivotally supported at the lower end of the elevating member 17 that is driven up and down by the elevating driving means 16 by a horizontal support shaft 14a in the left and right Y directions. The elevating drive means 16 shown in this embodiment includes a vertical screw shaft 18 fixedly erected vertically from the elevating member 17, and a female screwed on the vertical screw shaft 18 and supported at a predetermined position so as to be capable of rotating only. The screw body 19 and a motor 21 that drives the female screw body 19 to rotate forward and backward via a gear train 20, and the female screw body 19 is driven to rotate forward and backward by the motor 21. The elevating member 17 (sticking roller 14) can be driven up and down at a constant speed between the upper retreat level and the lower sticking level for pressing and pasting the belt-like adhesive sheet 12b onto the glass substrate 2.

  As indicated by phantom lines in FIG. 3, a backup roller 22 can be pivotally supported on the elevating member 17 at a position directly above the application roller 14 in parallel with the application roller 14 as necessary. The backup roller 22 has rigidity sufficient to correct the bending deformation of the application roller 14, and at least when the application roller 14 is at the lower application level, it abuts on the upper side thereof. It can be configured to be movable up and down with respect to the sticking roller 14 so that it can be separated from the upper part 14.

  As shown in FIG. 4, the turn guide 13 of the pressure-sensitive adhesive sheet peeling / feeding unit 9 is composed of a belt-like plate material laid in parallel with the left and right Y directions between a pair of left and right arm members 23. Thus, a holding plate 24 that sandwiches the belt-like base material 12 between the upper surface of the tip of the turn guide 13 is provided. The pair of left and right arm members 23 are supported so as to be swingable up and down around both end support shafts 25a of a guide roller 25 that is supported on the fixed machine frame side in parallel with the left and right Y directions. A pair of upper and lower stopper bolts 26a and 26b for sandwiching a lever 23a projecting rearward from the arm member 23 from both upper and lower sides is provided on the fixed machine frame side, and the stopper bolts 26a and 26b The tip level of the turn guide 13 can be finely adjusted up and down by adjustment. Further, the pressing plate 24 is supported at both ends between a pair of left and right vertical swinging members 28 that are supported by a pair of left and right arm members 23 via a rotatable shaft 27 parallel to the left and right Y directions and extend forward. It consists of a fixed strip-shaped plate material.

  Further, an air discharge pipe 29 is installed under the tip of the turn guide 13 in parallel with the left and right Y directions. The air discharge pipe 29 is provided with a large number of air discharge ports 29a for discharging air toward the vicinity of the lower side of the applying roller 14 located at the lower attaching level at appropriate intervals in the length direction. Therefore, the air discharge pipe 29 is supported so as to be capable of rotating with respect to the pipe support member 30 supporting both ends thereof, and the air discharge pipe 29 can be rotated to finely adjust the direction of the air discharge port 29a up and down. It is desirable to configure.

  As shown in FIG. 1, the strip-shaped adhesive sheet cutting device unit 11 is fed from the raw roll 12 </ b> A of the strip-shaped base material 12, and adjusts the width of the strip-shaped base material 12 to a predetermined width. It is incorporated in a horizontal path portion 11A parallel to the front-rear X direction of the strip-like base material 12 drawn through a slitter 31 that cuts both sides, and as shown in FIGS. Up and down parallel to the left and right Y directions, which are supported on the guide rails 32a and 32b so as to be reciprocally movable in the front-rear X direction, and for forming the vertical path portion 11B of the belt-like base material 12 in the belt-like base material horizontal path portion 11A. A pair of guide rollers 33 and 34 is provided. Accordingly, the belt-like substrate horizontal path portion 11A includes an upper horizontal path portion 11Aa extending from the fixed position of the guide roller 35 parallel to the left and right Y directions to the upper guide roller 33 of the belt-like adhesive sheet cutting device unit 11; It is comprised from lower horizontal path | route part 11Ab from the lower guide roller 34 of the strip | belt-shaped adhesive sheet cutting device part 11 to the guide roller 36 of a fixed position parallel to the left-right Y direction used as the terminal position of 11 A of strip | belt-shaped base material horizontal path | route parts. The guide roller 25 disposed on the rear side of the pressure-sensitive adhesive sheet peeling / feeding unit 9 is positioned directly below the guide roller 36 serving as a terminal position of the belt-like substrate horizontal path portion 11A.

  The details of the belt-like pressure-sensitive adhesive sheet cutting device 11 will be described with reference to FIGS. 5 to 7. The belt-like pressure-sensitive adhesive sheet cutting device 11 is moved back and forth on the guide rails 32 a and 32 b in addition to the guide rollers 33 and 34. A traveling body 37 supported in a reciprocating manner in the X direction and a cutting means 38 are provided. The traveling body 37 is formed by connecting two rod-like members 39, 40 parallel to each other in the front-rear X direction and parallel to each other in the left-right Y direction by connecting members 41a, 41b in the front-rear X direction at both ends thereof. A rectangular frame having a horizontally long plan shape, and each member 39 to 41b is made of a steel material having a quadrangular cross section, and is a square pipe material or a solid (solid) bar that has little or no bending deformation due to gravity. Steel can be used. Slide guides 42 that are slidably fitted to the guide rails 32 a and 32 b are attached to the lower sides of the left and right ends of the traveling body 37, and the upper guide rollers 33 are disposed on the front upper sides of the left and right ends of the traveling body 37. A pair of left and right bearing members 43 that pivot on both ends protrude upward, and a pair of left and right bearing members 44 that pivotally support both ends of the lower guide roller 34 are downward on the lower side of the left and right ends of the traveling body 37. Projected.

  The traveling body 37 is reciprocally driven in the front-rear X direction on the guide rails 32a and 32b by the traveling drive means 62 shown in FIGS. The travel drive means 62 used in this embodiment includes two pairs of front and rear left and right timing pulleys 64a supported on the outer sides of the fixed frames 63a and 63b parallel to the front and rear X direction for supporting the guide rails 32a and 32b separately. 64b and 65a, 65b, a pair of left and right timing belts 66a, 66b stretched between the timing pulleys in the front-rear X direction, and one position of each of the timing belts 66a, 66b on the outer left and right ends of the traveling body 37. A belt fixing member 67a, 67b for fixing, a pair of left and right timing pulleys 64a, 65a on the rear end side for hanging the pair of left and right timing belts 66a, 66b, and an interlocking shaft 68 in the left and right Y direction, and this interlocking The motor 69 drives the shaft 68 to rotate forward and reverse. Thus, by operating the motor 69 and rotating the pair of left and right timing belts 66a and 66b in the same direction, the traveling body 37 can travel in the front-rear X direction on the guide rails 32a and 32b.

  The cutting unit 38 includes a traveling member 45, a cutting blade 46 attached to the traveling member 45, and a cutting blade driving unit 47 that drives the cutting blade 46 to travel via the traveling member 45. The traveling member 45 is L-shaped in a side view, and is attached to the back of the vertical portion on a guide rail 48 that is laid on the inner vertical surface of the front bar-shaped member 40 in the traveling body 37 and parallel to the left and right Y directions. It is supported via the slide guide 48a and can reciprocate between the front and rear rod members 39, 40 of the traveling body 37 in the left-right Y direction. The cutting blade 46 is formed of a circular blade body 50 attached to a vertical fixed shaft 49 fixedly erected on a horizontal portion of the traveling member 45 so as to stand vertically between the front and rear rod members 39, 40 of the traveling body 37. It consists of a circumferential edge.

  The cutting blade driving means 47 includes timing pulleys 51a and 51b that are pivotally supported by vertical support shafts at front positions on both upper left and right ends of the traveling body 37, and a timing belt 52 that is stretched between the timing pulleys 51a and 51b. And a belt fixing member 53 for fixing one portion of the timing belt 52 to the back of the upper end of the vertical portion of the traveling member 45, and a motor 54 for driving one of the timing pulleys 51a to rotate forward and backward. The running member 45 (cutting blade 46) can be reciprocated in the left-right Y direction along the guide rail 48 by operating and rotating the timing belt 52 forward and backward. The timing pulley 51b, which is not driven by the motor, is pivotally supported so as to be adjustable in position in the left and right Y directions in order to adjust the tension of the timing belt 52. The left and right timing pulleys 51a and 51b are disposed below the pedestals 55a and 55b attached to the upper sides of the left and right ends of the traveling body 37, and are pivotally supported in a cantilever manner on the pedestals 55a and 55b. Is mounted on the upper side of the pedestal 55a.

  As shown in FIGS. 8 and 9, the vertical fixed shaft 49 that supports the circular blade body 50 has a lower end portion on a shaft clamp 56 that is fixed on the horizontal portion of the traveling member 45 so that its position can be adjusted in the front-rear X direction. The circular blade body 50 is rotatably fitted to the vertical fixed shaft 49 via a bearing 58 so as to be supported by a support seat plate 57 that is clamped and fixed above the shaft clamp 56 and fitted to the vertical fixed shaft 49. A fixed plate 60 fixed to the vertical fixed shaft 49 by two fixing bolts 59 is provided at the upper end of the vertical fixed shaft 49 protruding upward from the circular blade body 50. At least one (two in the illustrated example) rotary blade fixing tool (bolt) 61 that is threaded through 60 is provided, and when the fixing tool 61 is loosened, the rotary blade 50 is fixed to the vertical fixing shaft. Can be rotated around 49, but the By the Teigu 61 by screwed is pressed against the front end on the upper surface of the rotary blade body 50, it is configured to rotatably secure the rotary blade body 50. Thus, by adjusting the position of the shaft clamp 56 relative to the traveling member 45 in the front-rear X direction, the circumferential edge of the circular blade 50, that is, the cutting blade 46, and the rear bar-shaped member 39 of the traveling body 37. The gap with the belt-like base material receiving surface 39a constituted by the inner vertical surface is adjusted to correspond to the thickness of the belt-like release sheet 12a constituting the belt-like base material 12.

  The pressure-sensitive adhesive sheet affixing device having the above configuration can be used as follows. That is, the belt-like base material 12 drawn out of the raw roll 12A motor 69 passes through the slitter 31 and from the guide roller 35 at the starting end position of the horizontal path portion 11A provided with the belt-like adhesive sheet cutting device portion 11 to the upper horizontal route. Part 11Aa, upper guide roller 33 of the strip-shaped adhesive sheet cutting device unit 11, vertical path portion 11B in the strip-shaped adhesive sheet cutting device unit 11, lower guide roller 34 of the strip-shaped adhesive sheet cutting device unit 11, lower horizontal path unit 11Ab The guide roller 36 at the end position of the horizontal path portion 11A, the guide roller 25 provided with the adhesive sheet peeling / feeding portion 9 and the turn guide 13 of the adhesive sheet peeling / feeding portion 9 are spanned. Then, the belt-like substrate 12 is U-turned by the turn guide 13 to peel the belt-like release sheet 12a located on the inner side during the U-turn from the belt-like pressure-sensitive adhesive sheet 12b located on the outer side. Pull out to the take-up device unit 10 and wind and fix the tip to the belt-like release sheet take-up shaft 10a of the belt-like release sheet take-up device unit 10. The belt-like substrate 12 on the turn guide 13 passes between the tip of the holding plate 24 and the top surface of the tip of the turn guide 13 in a state of being superimposed on the turn guide 13 by gravity, and the belt-like release sheet 12a. The pressure-sensitive adhesive plate 24 prevents the belt-like adhesive sheet 12 b peeled off from the tip of the turn guide 13 from floating upward.

  On the other hand, the traveling body 37 of the belt-like pressure-sensitive adhesive sheet cutting device unit 11 has a belt-like base from the position where the cutting blade 46 (circular blade body 50) in the cutting means 38 of the belt-like pressure-sensitive adhesive sheet cutting device unit 11 to the tip of the turn guide 13. When the movement path length of the material 12 is the same as the length in the front-rear X direction of the adhesive sheet application region on the glass substrate 1, or the length in the front-rear X direction of the adhesive sheet application region is short, an integer of the length The travel drive means 62 is operated to travel to a predetermined position in the front and rear X direction on the guide rails 32a and 32b so as to be doubled and stopped and fixed.

  In this state, the strip-like release sheet take-up shaft 10a of the belt-like release sheet take-up device unit 10 and the driving rotary body of the slitter 31, the slit scrap take-up device 70 on both the left and right sides separated from the strip-like base material 12 by the slitter 31, etc. The belt-like base material 12 whose left and right lateral widths are adjusted by the slitter 31 in accordance with the width in the left and right Y direction of the adhesive sheet pasting area on the glass substrate 1 is rotated at the tip of the turn guide 13. Until the required tension. At this time, as shown in FIG. 5, the belt-like base material 12 that hangs down the vertical path portion 11 </ b> B in the belt-like pressure-sensitive adhesive sheet cutting device portion 11 from the top to the bottom is the inner vertical surface of the rear bar-like member 39 of the traveling body 37, That is, only the belt-like pressure-sensitive adhesive sheet 12b of the belt-like substrate 12 is dropped at the position in contact with the belt-like substrate receiving surface 39a at the position in contact with the belt-like substrate receiving surface 39a. Cut in the width direction with the body 50).

  That is, as described above, the cutting blade driving means 47 is operated to move the traveling member 45 from the one end stop position to the other end stop position of the guide rail 48 that is laterally separated from the belt-like base material 12. The cutting blade 46 (circular blade body 50) that moves integrally with the traveling member 45 by traveling at a constant speed in the left-right Y direction along the belt-like base material 12 that is in contact with the belt-like base material receiving surface 39a. On the other hand, the belt-like pressure-sensitive adhesive sheet 12b is made to run at a constant speed in the left-right Y direction while being cut in by the thickness of the belt-like pressure-sensitive adhesive sheet 12b.

At this time, the circular blade body 50 constituting the cutting blade 46 is fixed to the vertical fixed shaft 49 by a rotary blade body fixing tool (bolt) 61, and only a part of the circumferential blade edge of the circular blade body 50 is the cutting blade 46. Therefore, the gap between a part of the circumferential edge of the circular blade 50 acting as the cutting blade 46 and the belt-like substrate receiving surface 39a becomes equal to the thickness of the belt-like release sheet 12a of the belt-like substrate 12. As described above, as long as the position of the circular blade body 50 on the traveling member 45, that is, the position of the shaft clamp 56 is adjusted, only the belt-like adhesive sheet 12b can be reliably obtained regardless of the true circular accuracy of the circular blade body 50. Can be cut in the width direction. Of course, in this case, it is assumed that the distance between the guide rail 48 that guides the traveling of the traveling member 45 and the belt-like base material receiving surface 39a is constant over the entire traveling region of the traveling member 45. A high parallel accuracy is required between the front and rear rod members 39 and 40 of 37. However, according to the above configuration, the belt-shaped base receiving surface 39a.
The rod-shaped member 39 and the rod-shaped member 40 that supports the guide rail 48 are arranged in parallel in the front-rear direction. Even if it is assumed that bending deformation occurs due to gravity, the guide rail 48 and the belt-shaped base receiving surface 39a Since there is virtually no risk of fluctuation in the horizontal interval between the two, since the accuracy of the interval can be maintained, only the belt-like adhesive sheet 12b can be reliably cut in the left-right width direction as described above. It is.

  The belt-like base material 12 obtained by cutting the belt-like adhesive sheet 12b in the left-right width direction at a predetermined position as described above is the belt-like release sheet winding shaft 10a of the belt-like release sheet winding device 10 as described above, and all other drives. By rotating and driving the target rotating body, it is fed to the turn guide 13 side, and its feeding length is made equal to the length in the front-rear X direction of the adhesive sheet pasting region on the glass substrate 1. Therefore, as described above, the moving path length of the belt-like base material 12 from the position of the cutting blade 46 to the tip of the turn guide 13 is an integer of the length in the front-rear X direction of the adhesive sheet pasting region on the glass substrate 1. When the position of the traveling body 37 is set so as to be doubled, the band-shaped base is once or more times until the cutting position of the band-shaped adhesive sheet 12b cut first reaches the tip of the turn guide 13. The feeding of the material 12 is stopped and the cutting means 38 is operated.

  In any case, the preparation of the belt-like substrate 12 is completed in a state where the cutting position of the belt-like adhesive sheet 12b cut first reaches the tip of the turn guide 13 and the belt-like substrate 12 is stopped. Is stopped, the cutting means 38 operates to cut the strip-shaped adhesive sheet 12b at the next position. The strip-shaped adhesive sheet 12b peeled and sent from the strip-shaped release sheet 12a that is U-turned by the turn guide 13 until the cutting position of the strip-shaped adhesive sheet 12b that has been cut first reaches the tip of the turn guide 13. Removed.

  On the other hand, on the horizontal reciprocating table 2 stopped at the unloading work position P1, the glass substrate 1 is set at a predetermined position as described above. Then, the horizontal reciprocating table 2 on which the glass substrate 1 is set travels from the loading / unloading operation position P1 to the adhesive sheet sticking start position P2 by the operation of the travel driving means 5, and stops. The stop position is a position where the front end of the adhesive sheet pasting region on the glass substrate 1 that is mounted is directly below the front end of the turn guide 13.

  With the above, preparation for sticking the adhesive sheet to the glass substrate 1 set on the horizontal reciprocating table 2 is completed, and the sticking step is executed from this state. That is, the belt-like pressure-sensitive adhesive sheet 12b of the belt-like base material 12 is peeled off from the belt-like release sheet 12a by rotationally driving the belt-like release sheet winding shaft 10a of the belt-like release sheet winding device section 10 and all other rotating bodies to be driven. The action of feeding from the turn guide 13 while the action of lowering the sticking roller 14 by the raising / lowering driving means 16 and the action of unloading the horizontal reciprocating table 2 from the adhesive sheet sticking start position P2 and traveling toward the work position P1. Started at the same time. At this time, the feeding speed of the strip-shaped adhesive sheet 12b from the turn guide 13 (winding speed of the strip-shaped release sheet 12a by the strip-shaped release sheet winding shaft 10a) and the traveling speed of the horizontal reciprocating table 2 (glass substrate 1) are equal. It is controlled to become. And when the descending speed of the sticking roller 14 arrives at the position just below the sticking roller 14 in a state where the front end of the belt-like adhesive sheet 12b and the front end of the adhesive sheet sticking region on the glass substrate 1 coincide with each other in the front-rear X direction. The pasting roller 14 is controlled so as to reach a lower limit level that sandwiches the front end of the strip-shaped adhesive sheet 12b between the front end of the adhesive sheet pasting region on the glass substrate 1.

  In addition, before the front-end | tip of the strip | belt-shaped adhesive sheet 12b is pinched | interposed into the front end of the adhesive sheet sticking area | region of the glass substrate 1 with the sticking roller 14, it is sent out from the front-end | tip of the turn guide 13, and moves to the sticking roller 14 side in the air. When the tip of the belt-like adhesive sheet 12b hangs down due to gravity and comes into contact with the glass substrate 1, and then is pressed against the glass substrate 1 by the sticking roller 14, air is taken in between the belt-like adhesive sheet 12b and the glass substrate 1. Bubbles may occur. Accordingly, immediately before starting to feed the belt-shaped adhesive sheet 12b from the turn guide 13, air having an appropriate pressure is supplied to the air discharge pipe 29 and is discharged from the turn guide 13 by the air flow discharged from the air discharge port 29a. It is possible to control the front end portion of the pressure-sensitive adhesive sheet 12b to be inclined obliquely upward so as not to hang down and to bring the front end of the belt-like pressure-sensitive adhesive sheet 12b into contact with the peripheral surface of the sticking roller 14 that descends. By this control, it is avoided that the tip of the belt-like adhesive sheet 12b comes into contact with the glass substrate 1 before being pressed against the glass substrate 1 side by the sticking roller 14, and bubbles are formed between the belt-like adhesive sheet 12b and the glass substrate 1. It can be surely prevented from occurring. The supply of the pressure air to the air discharge pipe 29 can be stopped after the sticking action of the belt-like adhesive sheet 12b by the sticking roller 14 is started.

  As described above, the sticking action of the belt-like adhesive sheet 12b to the glass substrate 1 on the traveling horizontal reciprocating table 2 is started. Thereafter, the horizontal reciprocating table 2 is moved to the unloading work position P1. The sticking roller 14 travels continuously, stays at the lower limit level until the end position of the adhesive sheet sticking region on the glass substrate 1 has passed, and sends the belt-like adhesive sheet 12b of the belt-like base material 12 from the turn guide 13. The operation is performed until the strip-shaped adhesive sheet 12b has been fed out by the length in the front-rear X direction of the adhesive sheet pasting region on the glass substrate 1, that is, the next width direction cutting position on the strip-shaped adhesive sheet 12b is the tip of the turn guide 13 Will continue until Thereby, the sticking process of one adhesive sheet separated from the belt-like adhesive sheet 12b to the adhesive sheet attaching area on one glass substrate 1 set on the horizontal reciprocating table 2 is completed.

  When the one sticking step of the pressure-sensitive adhesive sheet is completed, the feeding action of the belt-like base material 12 by the belt-like peeling sheet winding shaft 10a of the belt-like peeling sheet winding device unit 10 is stopped and the feeding action of the belt-like base material 12 is stopped. While being stopped, the cutting means 38 is operated to cut the strip-shaped adhesive sheet 12b in the width direction at the next position, the sticking roller 14 is raised to the ascent limit level, and on the horizontal reciprocating table 2 The glass substrate 1 to which the adhesive sheet has been attached is taken out from the horizontal reciprocating table 2 in a state where the horizontal reciprocating table 2 is unloaded and stopped at the work position P1, and is reloaded with the next glass substrate 1. Then, the horizontal reciprocating table 2 on which the next glass substrate 1 is mounted is unloaded, traveled from the work position P1 to the adhesive sheet application start position P2, and stopped, thereby starting the adhesive sheet application process for the next glass substrate 1. Can be made.

  In addition, if the cutting performance with respect to the strip | belt-shaped adhesive sheet 12b falls by abrasion of the cutting blade 46 (a part of circumferential blade edge of the circular blade body 50) in the cutting | disconnection means 38 by repetition of the said adhesive sheet sticking process, The rotary blade fixing tool (bolt) 61 that fixes the circular blade 50 is loosened, and the circular blade 50 is rotated with respect to the vertical fixing shaft 49, so that unused portions of the circumferential blade edge are removed. What is necessary is just to fix the circular blade body 50 by making it oppose to the strip | belt-shaped base material receiving surface 39a, and fastening the rotary blade body fixing tool (bolt) 61 again in this state. At this time, the circular blade body on the traveling member 45 is set so that the gap between the belt-shaped substrate receiving surface 39a and the circumferential blade edge of the circular blade body 50 facing the same is the same as the thickness of the belt-shaped adhesive sheet 12b. 50 attachment positions (attachment position of the shaft clamp 56) can be finely adjusted.

  In the said embodiment, although the specific example which implemented this invention apparatus as an apparatus which affixes an adhesive sheet with respect to the glass substrate 1 which is mounted on the horizontal reciprocation table 2 and drive | works was shown, embodiment of this invention is shown. It is not limited to this. For example, even if it is a plate-like object to be adhered such as the glass substrate 1, it is also implemented as an apparatus for attaching an adhesive sheet to a plate-like object to be conveyed in one direction by a roller conveyor or a slat conveyor. In addition, even when the object to be attached is not a plate shape but a continuous sheet shape (film shape), an adhesive sheet sticking device to which the structure of the present invention is applied can be configured. In this case, the adhesive sheet can be attached to the continuous sheet-like object to be moved horizontally, or the adhesive sheet can be attached to the continuous sheet-like object to be moved vertically and vertically. Furthermore, it is also possible to constitute such that the adhesive sheet is simultaneously attached to both surfaces of the object to be attached.

Fig. A is a schematic side view of the entire apparatus, and Fig. B is a perspective view showing a part of a belt-like substrate used. It is a schematic plan view of an apparatus main part. It is a schematic side view of an apparatus principal part. It is a vertical side view which shows the detail of an adhesive sheet peeling delivery part. It is a vertical side view which shows the detail of a strip | belt-shaped adhesive sheet cutting device part. It is a partially notched top view which shows the detail of a strip | belt-shaped adhesive sheet cutting device part. It is a partially notched rear view which shows the detail of a strip | belt-shaped adhesive sheet cutting device part. It is a top view which shows the detail of a cutting blade part. It is a partially longitudinal front view which shows the detail of the cutting blade part.

Explanation of symbols

1 Glass substrate (attachment)
2 Horizontal reciprocating tables 2a, 2b, 32a, 32b, 48 Guide rails 5 Traveling drive means 7, 21, 54, 69 for horizontal reciprocating tables Motor 9 Adhesive sheet peeling and feeding section 10 Strip-shaped peeling sheet winding device section 10a Strip-shaped peeling Sheet winding shaft 11 Band-shaped adhesive sheet cutting device section 11A Horizontal path section 11Aa Upper horizontal path section 11Ab Lower horizontal path section 11B Vertical path section 12 Band-shaped substrate 12A Band-shaped base material roll 12a Band-shaped release sheet 12b Band-shaped adhesive sheet 13 turn guide 14 sticking roller 16 sticking roller raising / lowering driving means 24 holding plate 25, 33-36 guide roller 29 air discharge pipe 31 slitter 37 traveling body 38 cutting means 39, 40 rod-like member 39a belt-like base material receiving surface 41a, 41b connecting member 45 Traveling member 46 Cutting blade 47 Cutting blade driving means 4 9 Vertical fixed shaft 50 Circular blade bodies 52, 66a, 66b Timing belts 53, 67a, 67b Belt fixing member 56 Axis clamp 60 Fixing plate 61 Rotating blade body fixing tool (bolt)
62 Traveling drive means 70 of the traveling body Slit debris winding device P1 Glass substrate unloading work position P2 Adhesive sheet pasting start position

Claims (7)

  A pressure-sensitive adhesive sheet peeling / feeding unit arranged on the side of the movement path of the object to be pasted, a belt-like base material having a belt-like pressure-sensitive adhesive sheet continuous in the length direction of the belt-like release sheet on the continuous belt-like release sheet. The pressure-sensitive adhesive sheet is peeled off from the strip-shaped release sheet and sent to the surface of the object to be pasted by the pressure-sensitive adhesive sheet peel-off section by pressing the pressure-sensitive adhesive sheet onto the surface of the object to be pasted by the pasting roller. A pressure-sensitive adhesive sheet sticking device for sticking, wherein a cutting means for cutting the belt-like pressure-sensitive adhesive sheet into a unit pressure-sensitive adhesive sheet having a predetermined length is disposed in the belt-like base material feeding path, which is better than the pressure-sensitive adhesive sheet peeling and feeding portion. A cutting means is a pressure sensitive adhesive sheet sticking device provided with a cutting blade which cuts only a beltlike adhesive sheet on a beltlike release sheet in the width direction.   The pressure-sensitive adhesive sheet sticking apparatus according to claim 1, wherein the cutting means is configured to be movable along a belt-like substrate feeding path, and the length of the unit pressure-sensitive adhesive sheet can be changed by the movement of the cutting means.   The pressure sensitive adhesive sheet sticking device according to claim 1 or 2, wherein the cutting means includes a traveling cutting blade that travels in a width direction of the belt-shaped substrate and a belt-shaped substrate receiving surface that faces the traveling cutting blade.   The traveling cutting blade of the cutting means is composed of a circular blade body having a circular outer periphery as a blade edge. The circular blade body is rotatably supported around the circular center, and the circular blade body is rotated during a cutting action. The pressure sensitive adhesive sheet sticking device according to claim 3, further comprising a fixing tool for impossible fixing.   The cutting means includes a pair of left and right parallel rod-shaped members arranged on both sides of the vertical vertical path portion in the belt-shaped substrate feeding path, and a rail for supporting and guiding the traveling cutting blade is provided on one rod-shaped member, The pressure sensitive adhesive sheet sticking device according to claim 3 or 4 with which said beltlike substrate receiving surface is provided in the other rod-shaped member.   The cutting means is configured to be horizontally movable along a horizontal path portion in the belt-like base material feeding path, and the cutting means includes a belt-like base material guide roller that forms an upper and lower vertical path portion in the horizontal path portion. The adhesive sheet sticking device according to claim 5, wherein the pair of left and right parallel bar-shaped members are disposed on both left and right sides of the upper and lower vertical path unit. The pressure-sensitive adhesive sheet peeling / feeding unit includes a turn guide that reverses only the belt-like peeling sheet from the belt-like base material sent in the same direction as the moving direction of the object to be peeled and peels and sends the belt-like pressure-sensitive adhesive sheet from the belt-like peeling sheet. An adhering roller provided at a position adjacent to the feeding direction of the belt-like adhesive sheet from the turn guide so as to be movable in and out of the moving path of the object to be adhered, and the turn guide and the moving path of the object to be adhered The pressure sensitive adhesive sheet sticking device according to any one of claims 1 to 6, further comprising an air discharge pipe which is disposed between the air discharge pipes and discharges air toward a side where the sticking roller is located.

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