JP2009268949A - Adhesive applying device and adhesive applying method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adhesive applying device and an adhesive applying method by which the stringing phenomenon is suppressed and the application state of an adhesive is stabilized. <P>SOLUTION: The adhesive application device includes: an adhesive supply means 30 for supplying the adhesive H; an adhesive application roller 4 having a rotating outer peripheral surface 5 on which the adhesive H is supplied from the adhesive supply means 30 and from which the adhesive H is transferred on a work W; and a cooling means provided on the adhesive application roller 4 to cool the outer peripheral surface 6 of the adhesive application roller 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an adhesive application device and an adhesive application method for applying an adhesive to the surface of a sheet-like workpiece.

As an apparatus for applying a hot melt adhesive to the surface of a sheet-like workpiece, for example, an apparatus described in Patent Document 1 can be cited. In this apparatus, hot melt adhesive is supplied to the outer peripheral surface of a roller, and this hot melt adhesive is sequentially transferred to the outer peripheral surface of a plurality of rollers and then applied to a work.
JP 2006-272215 A

  However, in the apparatus as described above, when the hot melt adhesive is applied to the workpiece, if the hot melt adhesive is not cooled to a predetermined temperature or less, a stringing phenomenon occurs between the roller and the workpiece, and the adhesive is bonded. The application state of the agent may not be stable.

  The present invention has been made to solve the above-described problems associated with the prior art, and provides an adhesive application device and an adhesive application method capable of suppressing the stringing phenomenon and stabilizing the application state of the adhesive. The purpose is to do.

  An adhesive application device according to the present invention that achieves the above object includes an adhesive supply means for supplying an adhesive, an adhesive supplied from the adhesive supply means to the outer peripheral surface, and the adhesive on the outer peripheral surface while rotating. And an adhesive application roller for transferring the film to the workpiece. Further, the apparatus includes a cooling unit that is provided on the adhesive application roller and cools the outer peripheral surface of the adhesive application roller.

  Another form of the adhesive application device according to the present invention that achieves the above object includes an adhesive supply means for supplying an adhesive, a plurality of rotatable rollers, and an outer periphery driven around the plurality of rollers. An adhesive belt is supplied to the surface from the adhesive supply means, and an application belt is pressed against the workpiece by one of the rollers to transfer the adhesive on the outer peripheral surface to the workpiece. Further, the apparatus has a cooling means for cooling the outer peripheral surface of the coating belt.

  The adhesive coating method according to the present invention that achieves the above object includes cooling a rotatable adhesive coating roller to supply an adhesive to an outer peripheral surface, and rotating the adhesive coating roller while cooling the adhesive. Transfer the adhesive on the outer peripheral surface to the workpiece.

  In another embodiment of the adhesive coating method according to the present invention for achieving the above object, the coating belt circumscribing a plurality of rotatable rollers is cooled, and the adhesive is supplied to the outer peripheral surface of the coating belt. While the adhesive is cooled, the coating belt is rotated, and the outer peripheral surface is pressed against the workpiece by one of the rollers to transfer the adhesive on the outer peripheral surface to the workpiece.

  The adhesive application device according to the present invention configured as described above has an adhesive application roller that transfers the adhesive on the outer peripheral surface to the workpiece while rotating, and the adhesive application roller is provided with a cooling means. The supplied adhesive can be cooled before being transferred to the workpiece. Accordingly, when the adhesive is transferred from the outer peripheral surface of the adhesive application roller to the workpiece, the stringing phenomenon of the adhesive is suppressed, and the application state of the adhesive can be stabilized.

  Another form of the adhesive application device according to the present invention configured as described above has a coating belt that is pressed against the work by one of the rotating rollers and transfers the adhesive on the outer peripheral surface to the work, Since the cooling means for cooling the outer peripheral surface of the coating belt is provided, the supplied adhesive can be cooled before being transferred to the workpiece. Therefore, when the adhesive is transferred from the outer peripheral surface of the coating belt to the workpiece, the stringing phenomenon of the adhesive is suppressed, and the application state of the adhesive can be stabilized.

  The adhesive application method according to the present invention configured as described above is for supplying the adhesive on the outer peripheral surface to the workpiece by rotating the adhesive application roller while cooling the adhesive supplied to the adhesive application roller. The adhesive to be transferred can be cooled before being transferred to the workpiece. Accordingly, when the adhesive is transferred from the outer peripheral surface of the adhesive application roller to the workpiece, the stringing phenomenon of the adhesive is suppressed, and the application state of the adhesive can be stabilized.

  Another form of the adhesive application method according to the present invention configured as described above is to rotate the application belt while cooling the adhesive supplied to the application belt, and to apply the adhesive on the outer peripheral surface of the application belt. Since it transfers to a workpiece | work, it can cool before transferring the adhesive agent supplied to a workpiece | work. Therefore, when the adhesive is transferred from the outer peripheral surface of the coating belt to the workpiece, the stringing phenomenon of the adhesive is suppressed, and the application state of the adhesive can be stabilized.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

<First Embodiment>
1 is a front view of the adhesive application device according to the first embodiment, FIG. 2 is a side view of the adhesive application device, FIG. 3 is a partial cross-sectional view taken along line III-III in FIG. FIG. 5 is an enlarged sectional view in the vicinity of the rotation center axis of the adhesive application device, FIG. 5 is a sectional view taken along line VV in FIG. 3, and FIG. 6 is a sectional view taken along line VI-VI in FIG. .

  FIG. 7 is a diagram showing a collar used in the adhesive application device, where (A) is a front view, (B) is a side view, and FIG. 8 is a diagram showing a sleeve used in the adhesive application device. FIG. 9A is a front view, FIG. 9B is a side view, and FIG. 9 is an enlarged side view showing a scraping blade used in the adhesive application device.

  The adhesive application device 1 according to the first embodiment of the present invention is a device for applying the hot melt adhesive H to the surface of a flat secondary battery (work W).

  As shown in FIGS. 1 and 2, the adhesive application device 1 includes an adhesive application roller 4 that is rotatably held with respect to the roller holding unit 3. The outer peripheral surface 5 of the adhesive application roller 4 is formed of silicon.

  The roller holding unit 3 can be moved up and down by a pressurized air cylinder 6 and can press the adhesive application roller 4 against the workpiece W. The roller holding unit 3 is movable along a guide rail 7 that is fixedly installed, and is driven by a ball screw 8. A ball screw motor 10, which is a servo motor, is connected to the ball screw 8 via a coupling 11. By driving the ball screw motor 10, the adhesive application roller 4 is moved along the surface of the workpiece W. Can be moved.

  A first pulley 12A is fixed to a side end of the adhesive application roller 4, and the first pulley 12A is connected to a second pulley 12B rotatably provided on the roller holding unit 3 by a first belt 13A. Yes. The roller holding unit 3 is provided with a third pulley 12C that rotates coaxially with the second pulley 12B. The second pulley 12B and the third pulley 12C are fixed to each other.

  The roller holding part 3 is provided with a first link member 14A and a second link member 14B extending in a link structure. One end of the first link member 14A is connected to the roller holding portion 3, and the other end of the second link member 14B is connected to the second link member 14B. A fourth pulley 12D and a fifth pulley 12E fixed to each other are rotatably connected to the other end of the first link member 14A, and the fourth pulley 12D and the third pulley 12C are connected by a second belt 13B. Has been. The fifth pulley 12E is connected to a sixth pulley 12F and a third belt 13C that are rotatably provided at the tip of the second link member 14B. The sixth pulley 12F is fixed to the pinion 15.

  The pinion 15 meshes with a rack 16 that extends along the moving direction of the roller holder 3. A pinion holding portion 17 extending to the rack 16 side is provided from the distal end portion of the second link member 14B in order to hold the pinion 15 at a position where the pinion 15 meshes with the rack 16. Therefore, even if the roller holding unit 3 moves up and down, the pinion holding unit 17 can properly mesh the pinion 15 and the rack 16 while absorbing the displacement by the link mechanism.

  When the roller holding unit 3 is moved by driving the ball screw 8, the pinion 15 is rotated by the rack 16, and the adhesive application roller 4 is rotated via the third belt 13C, the second belt 13B, and the first belt 13A.

  Below the adhesive application roller 4, a roller conveyor 20 for conveying the pallet 19 holding the workpiece W is provided. A pallet stopper 21 for stopping the pallet 19 being conveyed is provided below the roller conveyor 20. The pallet stopper 21 is provided with a stopper 24 that is rotated about an axis of rotation 23 by an air cylinder 22, and the pallet 19 can be stopped by protruding the stopper 24 above the roller conveyor 20.

  A locating pin 26 protruding upward is provided below the roller conveyor 20, and the locating pin 26 can be moved up and down by an air cylinder 27. When the locating pin 26 is raised, the locating pin 26 is fitted into a locating hole provided on the lower surface of the pallet 19 to position the pallet 19.

  The pallet 19 can place the workpiece W on the upper surface, and a clamper 28 that clamps the edge of the workpiece W is provided.

  The apparatus 1 also adjusts the nozzle 30 (adhesive supply means) for supplying the hot melt adhesive H to the outer peripheral surface 5 of the adhesive application roller 4 and the thickness of the supplied hot melt adhesive H. A take-off blade 31 is provided.

  As shown in FIG. 9, the scraping blade 31 is connected to the rotary cylinder 32 at the center and can rotate, and the hot melt adhesive H can be scraped off at both ends. In the vicinity of the scraping blade 31, a centrifugal separator 34 is provided that sucks air by the negative pressure supplied from the suction tube 33 and centrifuges the attached hot melt adhesive H to the recovery tank 35. The centrifuge 34 is provided with a heater jacket 36 for preventing the hot melt adhesive H from hardening. On the side of the scraping blade 31 of the centrifugal separator 34, a heater 37 is provided for heating the scraping blade 31 so that the hot melt adhesive H can be easily peeled off. The scraping blade 31 has a tip portion located at a predetermined distance from the outer peripheral surface 5 of the adhesive application roller 4.

  As shown in FIGS. 3 and 4, the adhesive application roller 4 is rotatably connected to a support shaft 40 fixedly provided on the roller holding unit 3 by a bearing 41. The adhesive application roller 4 includes two lid members 42A and 42B provided at both ends in the axial direction, and a central member 43 positioned between the lid members 42A and 42B. The lid members 42 </ b> A and 42 </ b> B are annular members and are connected to the central member 43 by bolts 44. The central member 43 is a cylindrical member as shown in FIGS. 5 and 6, and annular channels 45A and 45B, which are annular grooves formed on both sides facing the lid members 42A and 42B, and a radius from the center. There are four radial channels 46A and 46B that extend radially in the direction and reach the annular channels 45A and 45B. Further, eight through passages 47 penetrating in the axial direction are formed so as to communicate the annular passages 45A and 45B on both sides.

  Between the lid members 42A and 42B and the central member 43, a first O-ring 48A for sealing the outer side in the radial direction of the annular flow paths 45A and 45B is provided. Between the cover members 42A and 42B and the support shaft 40, a second O-ring 48B is provided for sealing the outer side in the axial direction of the radial flow paths 46A and 46B. Between the central member 43 and the support shaft 40, a third O-ring 48C for sealing the inner side in the axial direction of the radial flow paths 46A and 46B is provided.

  A bearing 41 is located on the outer side in the axial direction of the third O-ring 48C via a collar 49 shown in FIG. Between the second O-ring 48B and the third O-ring 48C, as shown in FIG. 8, a sleeve 51 in which four radial through holes 50 are formed corresponding to the positions of the radial flow paths 46A and 46B is provided.

  At both ends of the support shaft 40, there are inlet channels 52 formed by radial channels formed corresponding to the positions of the radial channels 46A and 46B and channels that communicate with the channels from the shaft end side. And an outlet channel 53 is formed. A supply tube 54 for supplying a coolant is connected to the inlet channel 52, and a discharge tube 55 for discharging the coolant is connected to the outlet channel 53.

  Next, the operation of the apparatus 1 will be described.

  FIG. 10 is a side view when an adhesive is applied by the adhesive application device according to the first embodiment of the present invention.

  First, the workpiece W is fixed on the pallet 19 by the clamper 28 and conveyed by the roller conveyor 20. When the conveyed pallet 19 reaches below the adhesive application roller 4, the pallet 19 is stopped by the pallet stopper 21. Thereafter, the locate pin 26 is raised and the locate pin 26 is inserted into the locate hole of the pallet 19, and the pallet 19 is positioned while being raised from the roller conveyor 20.

  Next, the coolant is supplied from the supply tube 54. Thereby, the coolant flows into the inlet channel 52 of the support shaft 40, the through hole 50 of the sleeve 51, the radial channel 46A (cooling channel), the annular channel 45A (cooling channel), and the through channel of the central member 43. 47 (cooling channel), radial channel 46B (cooling channel) on the opposite side, annular channel 45B (cooling channel), through hole 50 of sleeve 51, outlet channel 53 of support shaft 40, and discharge tube 55. , This route flows. Thereby, these flow paths function as cooling means, and the outer peripheral surface 5 of the adhesive application roller 4 is cooled.

  Next, the hot melt adhesive H is supplied from the nozzle 30 to the outer peripheral surface 5 of the adhesive application roller 4. Further, the ball screw 8 is driven to move the adhesive application roller 4. At this time, the pinion 15 meshes with the rack 16 and rotates, and the adhesive application roller 4 rotates through the first to third belts 13A to 13C. Thereby, the adhesive application roller 4 can be rotated in synchronization with the movement of the adhesive application roller 4.

  The hot melt adhesive H on the outer peripheral surface 5 of the adhesive application roller 4 is scraped off by the scraping blade 31 and adjusted to a predetermined thickness.

  Thereafter, the pressurized air cylinder 6 is driven to lower the adhesive application roller 4 and press the hot melt adhesive H against the surface of the workpiece W. Thereby, the hot melt adhesive H on the outer peripheral surface 5 can be transferred to the workpiece W.

  After moving the adhesive application roller 4 for a predetermined length, the ball screw 8 is stopped to stop the movement of the adhesive application roller 4. Further, the adhesive application roller 4 is raised by the pressurized air cylinder 6, and the adhesive application roller 4 is separated from the workpiece W.

  Thereafter, the scraping blade 31 is rotated by the rotary cylinder 32, the hot melt adhesive H adhering to the scraping blade 31 is heated by the heater 37, and is collected in the collection tank 35 by the centrifugal separator 34.

  Thereafter, the locate pin 26 is lowered to return the pallet 19 onto the roller conveyor 20, and the pallet stopper 21 is tilted to carry out the pallet 19.

  According to the present embodiment, since the outer peripheral surface 5 of the adhesive application roller 4 is cooled by the cooling means, the temperature of the hot melt adhesive H is threaded when the hot melt adhesive H is transferred to the workpiece W. The temperature can be easily lowered to a temperature at which the phenomenon hardly occurs.

  Further, in the case where the hot melt adhesive is applied to the belt and the hot melt adhesive is transferred from the belt to the work W, the belt bends when the adhesive is applied to the belt, and the adhesive is applied to the work W. There is a possibility that the application start point and the application end point are shifted. However, in this embodiment, since no belt is used, the application start point and the application end point of the hot melt adhesive H with respect to the work W can be adjusted more accurately.

  Further, since the scraping blade 31 is provided, the thickness of the hot melt adhesive H on the outer peripheral surface 5 of the adhesive application roller 4 can be set to a desired thickness.

Second Embodiment
Next, an adhesive application device according to the second embodiment will be described.

  FIG. 11 is a front view of the adhesive application device according to the second embodiment, and FIG. 12 is a side view of the adhesive application device. In addition, the same code | symbol is attached | subjected to the site | part which has the same function as the adhesive agent coating device which concerns on 1st Embodiment, and description is abbreviate | omitted.

  The adhesive application device 60 according to the second embodiment is different from the first embodiment only in the structure for rotating the adhesive application roller 4.

  In this apparatus 60, a roller driving motor 62 is connected to the second pulley 12B via a coupling 61. The roller driving motor 62 is a servo motor. A cable bearer 63 that accommodates a cable is connected to the roller driving motor 62.

  The roller driving motor 62 and the ball screw motor 10 are connected to the same control device, and can be driven synchronously. Therefore, the movement and rotation of the adhesive application roller 4 can be synchronized without using a mechanism such as the rack 16 and the pinion 15 as in the first embodiment.

<Third Embodiment>
Next, an adhesive application device according to a third embodiment will be described.

  FIG. 13 is a side view of the adhesive application device according to the third embodiment, and FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG. In addition, the same code | symbol is attached | subjected to the site | part which has the same function as the adhesive agent coating apparatus which concerns on 1st, 2nd embodiment, and description is abbreviate | omitted.

  As shown in FIGS. 13 and 14, the adhesive application device 70 according to the third embodiment has an adhesive storage tank 71 (adhesive supply means) in which a hot melt adhesive H is accommodated. A support shaft 40 is fixedly connected to the adhesive storage tank 71, and an adhesive application roller 72 is rotatably connected to the support shaft 40. The hot melt adhesive H in the adhesive storage tank 71 is put to a height at which the outer peripheral surface 73 of the adhesive application roller 72 is immersed.

  A cutout portion 74 cut out in the circumferential direction is formed on the outer peripheral surface 73 of the adhesive application roller 72. The notch 74 has a small radius, and a portion of the outer peripheral surface 73 excluding the notch 74 is formed one step higher. The circumference of the large-diameter portion 75 formed one step higher corresponds to the length of the part of the workpiece W to which the hot melt adhesive H is applied. The adhesive application roller 72 is the same as the adhesive application roller 4 of the first embodiment except for the structure in which the cutout portion 74 and the large diameter portion 75 are formed on the outer peripheral surface 73.

  The adhesive application roller 72 has a first pulley 76 </ b> A fixed to a side end thereof, and the first pulley 76 </ b> A is connected to a second pulley 76 </ b> B rotatably provided in the adhesive storage tank 71 by a first belt 77. ing. A roller driving motor 79 is connected to the second pulley 76B via a coupling 78. The roller driving motor 79 is a servo motor.

  Above the adhesive application roller 72, a roller conveyor 81 for conveying the pallet 80 holding the workpiece W is provided. The roller conveyor 81 supports a flange portion 82 formed on the edge of the pallet 80. Above the roller conveyor 81, a chain conveyor 84 for moving the pallet 80 is provided. The chain conveyor 84 is provided with a conveyance pin 85 protruding downward, and the pallet 80 can be pushed and moved by the conveyance pin 85. The chain conveyor 84 is driven by a chain motor 86 that is a servo motor.

  The roller driving motor 79 and the chain motor 86 are connected to the same control device, and can be driven synchronously.

  The pallet 80 is provided with a clamper 87 that clamps the edge of the workpiece W, and can hold the workpiece W on the lower surface.

  Next, the operation of the apparatus 70 will be described.

  FIG. 15 is a side view when an adhesive is started to be applied by the adhesive application device according to the third embodiment, and FIG. 16 is a side view when the adhesive is applied by the adhesive application device. 17 is a side view when the adhesive is applied by the adhesive application device.

  First, the workpiece W is fixed to the lower surface of the pallet 80 by the clamper 87 and conveyed on the roller conveyor 81 by the chain conveyor 84. Next, the outer peripheral surface 73 of the adhesive application roller 72 is cooled in the same procedure as in the first embodiment.

  Next, the roller driving motor 79 is driven to rotate the adhesive application roller 72. At this time, the adhesive application roller 72 can be rotated in synchronization with the movement of the chain conveyor 84. When the adhesive application roller 72 rotates, the hot melt adhesive H adheres to the large diameter portion 75 of the outer peripheral surface 73 that has been immersed in the hot melt adhesive H.

  The hot melt adhesive H on the outer peripheral surface 73 of the adhesive application roller 72 is scraped off by the scraping blade 31 and adjusted to a predetermined thickness.

  Thereafter, the hot melt adhesive H on the outer peripheral surface 73 is pressed and transferred to the workpiece W. At the time of transfer, as shown in FIGS. 15 and 17, the stepped portion 88 between the large diameter portion 75 and the notch portion 74 is in contact with the start point and end point of the adhesive application position of the workpiece W.

  According to the present embodiment, the application start point and the application end point of the hot melt adhesive H to the workpiece W are determined by the shape of the outer peripheral surface 73 of the adhesive application roller 72 (the cutout portion 74 and the large diameter portion 75). The application range does not shift and stable application is possible.

<Fourth embodiment>
Next, an adhesive application device according to a fourth embodiment will be described.

  18 is a side view of the adhesive application device according to the fourth embodiment, FIG. 19 is a perspective view showing cooling means of the adhesive application device, and FIG. 20 is a cross-sectional view taken along line XX-XX in FIG. It is. In addition, the same code | symbol is attached | subjected to the site | part which has the same function as the adhesive agent coating apparatus which concerns on 1st-3rd embodiment, and description is abbreviate | omitted.

  The adhesive application device 90 according to the fourth embodiment is different from the first to third embodiments in that the hot melt adhesive H is applied onto the belt and the hot melt adhesive H is transferred from the belt to the workpiece W. .

  As shown in FIG. 18, this apparatus is a driving roller that is rotationally driven by a pressing roller 92 that presses a coating belt 91, which will be described later, against a workpiece W, and a belt driving motor 93 that drives the coating belt 91. It has a roller 94 and an intermediate roller 95 located between the pressing roller 92 and the driving roller 94. The belt driving motor 93 is a servo motor. A coating belt 91 made of silicon is provided outside the three rollers 92, 94, and 95.

  Outside the coating belt 91, a nozzle 97 that supplies the hot melt adhesive H to the outer peripheral surface 96 of the coating belt 91 is provided. Inside the coating belt 91, a cooling means 98 that contacts the coating belt 91 is provided at a position corresponding to the nozzle 97. As shown in FIGS. 19 and 20, the cooling means 98 has a lid 101 fixed to a cup-shaped box 99 via a seal rubber 100, and a space 102 is formed inside. Connected to the cooling means 98 are a supply tube 103 that communicates with the space 102 and supplies a cooling liquid, and a discharge tube 104 that discharges the cooling liquid.

  A chain conveyor 105 for conveying the pallet 19 holding the workpiece W is provided below the coating belt 91. Conveying pins 106 protruding upward are attached to the chain conveyor 105, and the pallet 19 can be pushed and moved by the conveying pins 106. The chain conveyor 105 is driven by a chain motor 107 that is a servo motor.

  The belt driving motor 93 and the chain motor 107 are connected to the same control device, and can be driven synchronously.

  Next, the operation of the apparatus 90 will be described.

  First, the workpiece W is fixed on the pallet by a clamper, and the pallet is set on the chain conveyor 105. Next, a cooling liquid is circulated to the cooling means 98 to cool the outer peripheral surface 96 of the coating belt 91 in contact with the cooling means 98.

  Next, while driving the chain motor 107 to move the pallet 19, the belt driving motor 93 is driven to rotate the coating belt 91. At this time, the application belt 91 can be rotated in synchronization with the movement of the chain conveyor 105.

  Next, the hot melt adhesive H is supplied from the nozzle 97 to the coating belt 91. Thereafter, the hot melt adhesive H on the outer peripheral surface 96 of the coating belt 91 is pressed against the workpiece W and transferred.

  According to the present embodiment, since the outer peripheral surface 96 of the coating belt 91 is cooled by the cooling means 98, the temperature of the hot melt adhesive H is threaded when transferring the hot melt adhesive H to the workpiece W. The temperature can be easily lowered to a temperature at which the phenomenon hardly occurs.

  Further, in this embodiment, the cooling means 98 (belt retraction suppressing portion) is provided inside the position corresponding to the nozzle 97 of the coating belt 91, so that the coating belt 91 is not retracted and bent. The hot melt adhesive H can be supplied. Therefore, the application start point and application end point of the hot melt adhesive H on the workpiece W can be adjusted more accurately.

<Fifth Embodiment>
Next, an adhesive application device according to a fifth embodiment will be described.

  FIG. 21 is a side view of the adhesive application device according to the fifth embodiment. In addition, the same code | symbol is attached | subjected to the site | part which has the same function as the adhesive agent coating apparatus which concerns on 1st-4th embodiment, and description is abbreviate | omitted.

  The adhesive application device 110 according to the fifth embodiment is different from the fourth embodiment in cooling means.

  As shown in FIG. 21, the apparatus 110 includes a pressing roller 111 that presses the coating belt 91 against the workpiece W, and a driving roller that is rotationally driven by a belt driving motor 112 that drives the coating belt 91. 113 and two intermediate rollers 114A and 114B located between the pressing roller 111 and the driving roller 113. One of the intermediate rollers (intermediate roller 114 </ b> A) is located at a position corresponding to the nozzle 97.

  The pressing roller 111 and the driving roller 113 are cooled by the same structure as that of the adhesive application roller 4 of the first embodiment.

  Next, the operation of the apparatus 110 will be described.

  First, the workpiece W is fixed on the pallet 19 by the clamper 28, and the pallet 19 is set on the chain conveyor 105. Next, a cooling liquid is passed through the pressing roller 111 and the driving roller 113 to cool the outer peripheral surface 96 of the coating belt 91.

  Next, while driving the chain motor 107 to move the pallet 19, the belt driving motor 112 is driven to rotate the coating belt 91. At this time, the application belt 91 can be rotated in synchronization with the movement of the chain conveyor 105.

  Next, the hot melt adhesive H is supplied from the nozzle 97 to the coating belt 91. Thereafter, the hot melt adhesive H on the outer peripheral surface of the coating belt 91 is pressed against the work W and transferred.

  According to this embodiment, since the outer peripheral surface of the coating belt 91 is cooled by the pressing roller 111 and the driving roller 113, the hot melt adhesive H is transferred when the hot melt adhesive H is transferred to the workpiece W. Can be easily lowered to a temperature at which the stringing phenomenon hardly occurs.

  In this embodiment, since the intermediate roller 114A (belt retraction suppressing portion) is provided inside the position corresponding to the nozzle 97 of the application belt 91, the application belt 91 is not retracted and bent. The hot melt adhesive H can be supplied. Therefore, the application start point and application end point of the hot melt adhesive H on the workpiece W can be adjusted more accurately.

<Sixth Embodiment>
Next, an adhesive application device according to a sixth embodiment will be described.

  FIG. 22 is a side view of the adhesive application device according to the sixth embodiment. In addition, the same code | symbol is attached | subjected to the site | part which has the same function as the adhesive agent coating apparatus which concerns on 1st-5th embodiment, and description is abbreviate | omitted.

  The adhesive application device 120 according to the sixth embodiment differs from the fourth embodiment in the positions of the cooling means and the nozzle 97.

  As shown in FIG. 22, the apparatus 120 includes a pressing roller 121 that presses the coating belt 91 against the work W, and a driving roller that is rotationally driven by a belt driving motor 122 that drives the coating belt 91. 123, and an intermediate roller 124 positioned between the pressing roller 121 and the driving roller 123.

  The driving roller 123 is cooled by the same structure as the adhesive application roller 4 of the first embodiment.

  The nozzle 97 is provided corresponding to a position where the application belt 91 is in contact with the driving roller 123.

  Next, the operation of the apparatus 120 will be described.

  First, the workpiece W is fixed on the pallet 19 by the clamper 28, and the pallet 19 is set on the chain conveyor 105. Next, a cooling liquid is circulated to the driving roller 123 to cool the outer peripheral surface 96 of the coating belt 91.

  Next, while driving the chain motor 107 to move the pallet 19, the belt driving motor 122 is driven to rotate the coating belt 91. At this time, the application belt 91 can be rotated in synchronization with the movement of the chain conveyor 105.

  Next, the hot melt adhesive H is supplied from the nozzle 97 to the coating belt 91. Thereafter, the hot melt adhesive H on the outer peripheral surface of the coating belt 91 is pressed against the work W and transferred.

  According to this embodiment, since the outer peripheral surface of the coating belt 91 is cooled by the driving roller 123, the temperature of the hot melt adhesive H is threaded when the hot melt adhesive H is transferred to the workpiece W. The temperature can be easily lowered to a temperature at which the phenomenon hardly occurs.

  In this embodiment, since the driving roller 123 (belt retraction suppressing portion) is provided inside the position corresponding to the nozzle 97 of the application belt 91, the application belt 91 does not retreat and bend. In addition, the hot melt adhesive H can be supplied. Therefore, the application start point and application end point of the hot melt adhesive H on the workpiece W can be adjusted more accurately.

  The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims. For example, the scraping blade 31 may be applied to the fourth to sixth embodiments. Also, the number of rollers can be changed. Moreover, a workpiece | work is not limited to a secondary battery.

It is a front view of the adhesive agent coating device which concerns on 1 embodiment. It is a side view of the adhesive agent coating apparatus. It is a fragmentary sectional view which follows the III-III line of FIG. It is an expanded sectional view of the rotation center axis vicinity of the adhesive agent coating apparatus. It is sectional drawing which follows the VV line of FIG. It is sectional drawing which follows the VI-VI line of FIG. It is a figure which shows the color used for the adhesive agent coating apparatus, (A) is a front view, (B) is a side view. It is a figure which shows the sleeve used for the adhesive agent coating apparatus, (A) is a front view, (B) is a side view. It is an enlarged side view which shows the scraping blade used for the adhesive agent coating apparatus. It is a side view at the time of apply | coating an adhesive agent with the adhesive agent coating apparatus which concerns on 1st Embodiment of this invention. It is a front view of the adhesive agent coating device which concerns on 2nd Embodiment. It is a side view of the adhesive agent coating apparatus. It is a side view of the adhesive agent coating device which concerns on 3rd Embodiment. It is sectional drawing which follows the XIV-XIV line | wire of FIG. It is a side view at the time of starting to apply | coat an adhesive agent with the adhesive agent coating apparatus which concerns on 3rd Embodiment. It is a side view at the time of apply | coating the adhesive agent by the adhesive agent coating apparatus. It is a side view at the time of having finished applying adhesive with the adhesive application device. It is a side view of the adhesive agent coating device which concerns on 4th Embodiment. It is a perspective view which shows the cooling means of the adhesive agent coating apparatus. It is sectional drawing which follows the XX-XX line of FIG. It is a side view of the adhesive agent coating device which concerns on 5th Embodiment. It is a side view of the adhesive agent coating device which concerns on 6th Embodiment.

Explanation of symbols

1, 60, 70, 90, 110, 120 Adhesive application device,
3 Roller holding part,
4 Adhesive application roller,
5,73 The outer peripheral surface of the adhesive application roller,
30,97 nozzles (adhesive supply means),
31 blades,
40 support shaft,
45A, 45B annular channel (cooling channel),
46A, 46B Radial flow path (cooling flow path),
47 Through channel (cooling channel),
52 inlet channel,
53 outlet channel,
71 Adhesive storage tank (adhesive supply means),
72 adhesive application roller,
74 Notch,
91 belt for application,
92, 111, 121 pressing roller,
96 The outer peripheral surface of the coating belt,
98 Cooling means (belt retraction suppression part),
114A Intermediate roller (belt retraction suppressor),
H hot melt adhesive,
W Work.

Claims (15)

An adhesive supply means for supplying an adhesive;
An adhesive application roller that transfers the adhesive on the outer peripheral surface to the workpiece while rotating by supplying an adhesive to the outer peripheral surface from the adhesive supply means;
A cooling means provided on the adhesive application roller for cooling the outer peripheral surface of the adhesive application roller.   The adhesive applicator according to claim 1, wherein a cutout portion cut out in a circumferential direction is formed on an outer peripheral surface of the adhesive application roller.   3. The apparatus according to claim 1, further comprising a scraping blade that is provided at a predetermined distance from the outer peripheral surface of the adhesive application roller and adjusts the thickness of the adhesive applied to the outer peripheral surface. Adhesive applicator. The cooling means is formed from one side of the shaft end to a support shaft located at the rotation center of the adhesive application roller, and an inlet channel into which a cooling medium flows;
An outlet channel formed on the support shaft from the other side of the shaft end to discharge the cooling medium;
The adhesive application according to any one of claims 1 to 3, further comprising: a cooling flow path that communicates between the inlet flow path and the outlet flow path and passes through the inside of the adhesive application roller. apparatus.   The adhesive application device according to claim 1, wherein the adhesive supply unit is a nozzle.   The adhesive according to any one of claims 1 to 4, wherein the adhesive supply means is an adhesive storage tank in which an adhesive is accommodated so that an outer peripheral surface of the adhesive application roller is immersed. Agent applicator. An adhesive supply means for supplying an adhesive;
A plurality of rotatable rollers;
Driven by circumscribing the plurality of rollers, the adhesive is supplied to the outer peripheral surface from the adhesive supply means, and is pressed against the workpiece by one of the rollers to transfer the adhesive on the outer peripheral surface to the workpiece. An application belt to
And a cooling means for cooling the outer peripheral surface of the coating belt.   8. The adhesive supply means is a nozzle, and a belt retraction suppressing portion in contact with the application belt is provided inside a portion where the adhesive is supplied by the nozzle of the application belt. The adhesive applicator described in 1.   The adhesive application device according to claim 8, wherein the belt retraction suppressing unit is one of the rollers.   The adhesive application device according to claim 7, wherein the cooling unit is provided in at least one of the rollers. The cooling means is formed from one side of the shaft end to a support shaft located at the rotation center of the roller, and an inlet channel into which a cooling medium flows,
An outlet channel formed on the support shaft from the other side of the shaft end to discharge the cooling medium;
The adhesive application device according to claim 10, further comprising a cooling flow path that communicates between the inlet flow path and the outlet flow path and passes through the roller.   The adhesive applying device according to claim 8, wherein the cooling unit is provided in the belt retraction suppressing unit.   13. The apparatus according to claim 7, further comprising a scraping blade that is provided at a predetermined distance from the outer peripheral surface of the coating belt and adjusts the thickness of the adhesive applied to the outer peripheral surface. 2. The adhesive application device according to item 1.   The rotatable adhesive application roller is cooled to supply an adhesive to the outer peripheral surface, and the adhesive application roller is rotated while the adhesive is cooled to transfer the adhesive on the outer peripheral surface to the workpiece. Adhesive application method.   A coating belt circumscribing a plurality of rotatable rollers is cooled, an adhesive is supplied to the outer peripheral surface of the coating belt, the coating belt is rotated while cooling the adhesive, and one of the rollers An adhesive coating method comprising pressing an outer peripheral surface against a workpiece and transferring the adhesive on the outer peripheral surface to the workpiece.

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