Bonding device

Abstract

The invention provides a bonding device, which can inhibit the adhesion of the bonding agent of a bonding tape to a pressure roller. The bonding device is provided with: a first crimping roller; a non-adhesive tape-like object hung on the first pressure-contact roller and facing the adhesive tape; a second crimping roller that presses the adhesive tape and the sheet between the second crimping roller and the tape; and a heating device that heats the adhesive tape before the adhesive tape enters between the belt-shaped object and the second pressure contact roller, the adhesive tape having a base material tape and an adhesive applied to the base material tape, the adhesive tape and the sheet entering between the belt-shaped object and the second pressure contact roller and being pressed by the adhesive tape and the sheet. Thus, the adhesive tape and the sheet are joined such that the adhesive applied to the base tape is exposed from the edge of the base tape in the short-side direction.

Description

Technical Field

[0001] The technology disclosed in this specification relates to an adhesion device. Background Art

[0002] In the technical field of manufacturing devices for sewn products, an adhesion device is known, as disclosed in Patent Document 1, that heats an adhesive tape to adhere it to a sheet. The adhesion device includes a nozzle that jets hot air and a pair of pressure rollers that join the adhesive tape heated by the hot air to the sheet.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2017-203224 Summary of the Invention

[0006] (I) Technical Problem to be Solved

[0007] The adhesive of the adhesive tape may adhere to the pressure roller. If the adhesive adhering to the pressure roller is transferred to the sheet, the quality of the sewn product may be reduced.

[0008] The purpose of the technology disclosed in this specification is to suppress the adhesion of the adhesive of the adhesive tape to the pressure roller.

[0009] (II) Technical Solution

[0010] This specification discloses an adhesion device. The adhesion device includes: a first pressure roller; a non-adhesive belt-like material that is hung on the first pressure roller and opposed to the adhesive tape; a second pressure roller that presses the adhesive tape and the sheet between it and the belt-like material; and a heating device that heats the adhesive tape before the adhesive tape enters between the belt-like material and the second pressure roller. The adhesive tape has a base tape and an adhesive coated on the base tape. By the adhesive tape and the sheet entering between the belt-like material and the second pressure roller and being pressed, the adhesive tape and the sheet are joined in such a way that the adhesive coated on the base tape exposes from the edge in the short side direction of the base tape.

[0011] (III) Advantageous Effects

[0012] According to the technology disclosed in this specification, it is possible to suppress the adhesion of the adhesive of the adhesive tape to the pressure roller. Brief Description of the Drawings

[0013] Figure 1 It is a view of the adhesion device of the first embodiment observed from the left rear.

[0014] Figure 2 It is a view of the adhesion device of the first embodiment observed from the rear.

[0015] Figure 3It is a view of the bonding device of the first embodiment observed from the left side.

[0016] Figure 4 It is a block diagram showing the bonding device of the first embodiment.

[0017] Figure 5 It is a side view schematically showing the adhesive tape and the sheet of the first embodiment.

[0018] Figure 6 It is a top view schematically showing the adhesive tape and the sheet of the first embodiment.

[0019] Figure 7 It is a view of the bonding device of the first embodiment observed from the left side.

[0020] Figure 8 It is a view of the bonding device of the first embodiment observed from the front left side.

[0021] Figure 9 It is a view of the adhesive coating device of the first embodiment observed from the left side.

[0022] Figure 10 It is a view of the adhesive coating device of the first embodiment observed from the front left side.

[0023] Figure 11 It is a view of the pump of the first embodiment observed from the front left side.

[0024] Figure 12 It is a view of the crimping device of the first embodiment observed from the left side.

[0025] Figure 13 It is a view of the crimping device of the first embodiment observed from the back left side.

[0026] Figure 14 It is a view of the crimping device of the first embodiment observed from the front left side.

[0027] Figure 15 It is a view of the cooling device of the first embodiment observed from the front left side.

[0028] Figure 16 It is a view of the cooling device of the first embodiment observed from the back lower side.

[0029] Figure 17 It is a view of the cooling device of the first embodiment observed from the back lower side.

[0030] Figure 18 It is a flowchart showing the operation of the bonding device of the first embodiment.

[0031] Figure 19 It is a view for explaining the operation of the adhesive coating device of the first embodiment.

[0032] Figure 20 This is a diagram for explaining the operation of the crimping device of the first embodiment.

[0033] Figure 21 This is a diagram for explaining the operation of the crimping device of the first embodiment.

[0034] Figure 22 This is a diagram for explaining the operation of the tape conveying device of the first embodiment.

[0035] Figure 23 This is a view of the cooling device of the second embodiment as observed from the left side.

[0036] Figure 24 This is a view of the support plate of the third embodiment as observed from the front left.

[0037] Figure 25 This is a view of the driven roller of the fourth embodiment as observed from the front left.

[0038] Explanation of reference numerals

[0039] 1: Bonding device, 2: Base, 3: Main body, 3A: Bracket part, 3B: Arm part, 4: Support mechanism, 4A: First support member, 4B: Second support member, 4C: Third support member, 4D: Fourth support member, 4E: Fifth support member, 4F: Sixth support member, 4G: Seventh support member, 5: Belt conveying device, 6: Adhesive coating device, 7: Pressing device, 8: Operation panel, 9: Operation pedal, 10: Jet cooler, 11: Controller, 12: Workbench, 12A: Top plate, 12B: Leg member, 12C: Bottom plate, 13: Cover, 13A: First cover, 13B: Second cover, 13C: Third cover, 14: Reel, 15: First driving roller (upstream driving roller), 15A: Pinch roller, 16: Second driving roller (downstream driving roller), 17: Third driving roller, 17A: Pinch roller, 18: Tension adjusting roller, 19A: Guide rod, 19B: Guide rod, 19C: Guide rod, 20: Driven roller, 21: Driven roller, 22: Driven roller, 23: Driven roller, 23A: Opening, 24: Driven roller, 25: Driven roller, 26: Driven roller, 27: Driven roller, 28: Driven roller, 29: Guide member, 30: Cylinder, 31: Pump housing, 32: Valve housing, 33: Coating nozzle, 33A: Discharge port, 34: Support plate, 35: Adhesive cooling nozzle (second cooling device), 35A: Jet port, 36: Blower, 37: Pump, 37A: First gear, 37B: Second gear, 38: Valve, 39: Supply pipe, 40: Heating nozzle (heating device), 40A: Jet port, 41: First pressing roller, 42: Second pressing roller, 43: First support member, 44: Second support member, 45: Lifting actuator, 46: Pulley, 47: Driven roller, 48: Pulley, 49: Pulley, 50: Belt-like object, 51: Cooling device (first cooling device), 52: Housing, 52A: Opening, 53: Radiator (first radiator), 53A: Substrate (first substrate), 53B: Fin (first fin), 54: Outlet, 55: Radiator (second radiator), 55A: Substrate (second substrate), 55B: Fin (second fin), 56: Cooling device (second cooling device), 56A: Jet port, 111: Processor, 112: Memory, 113: Storage unit, 340: Support plate (second cooling device), 510: Cooling device (first cooling device), 510A: Jet port, M: Sheet, St: Stitch, T: Adhesive tape, Tb: Base material tape, Td: Liquid accumulation, Te: Protrusion, Tg: Adhesive. Detailed implementation mode

[0040] Hereinafter, the implementation mode will be described with reference to the drawings. In the implementation mode, the positional relationships of the respective parts are described using the terms left, right, front, rear, upper, and lower. These terms represent relative positions or directions with respect to the center of the bonding device 1.

[0041] [First Embodiment]

[0042] A description will be given of the first embodiment.

[0043] [Outline of the bonding device]

[0044] Figure 1 FIG. is a view of the bonding device 1 of the present embodiment as viewed from the left rear. Figure 2 FIG. is a view of the bonding device 1 of the present embodiment as viewed from the rear. Figure 3 FIG. is a view of the bonding device 1 of the present embodiment as viewed from the left. Figure 4 FIG. is a block diagram showing the bonding device 1 of the present embodiment.

[0045] The bonding device 1 heats the adhesive tape T and bonds it to the sheet M. The bonding device 1 includes a base 2, a main body 3, a support mechanism 4, a tape conveying device 5, an adhesive coating device 6, a crimping device 7, an operation panel 8, an operation pedal 9, a jet cooler 10, and a controller 11.

[0046] The bonding device 1 is supported on the workbench 12. The workbench 12 has a top plate 12A on which the base 2 is placed, a plurality of leg members 12B that support the top plate 12A, and a bottom plate 12C disposed between the plurality of leg members 12B.

[0047] The main body 3 is supported on the base 2. The main body 3 has a bracket portion 3A supported on the base 2 and an arm portion 3B supported on the bracket portion 3A. The arm portion 3B is disposed above the base 2.

[0048] The support mechanism 4 is supported on the main body 3. The support mechanism 4 is supported at the left end portion of the arm portion 3B. The support mechanism 4 supports respectively: the tape conveying device 5, the adhesive coating device 6, and the crimping device 7. At least a part of the support mechanism 4 is covered by a cover 13. The cover 13 includes: a first cover 13A, a second cover 13B, and a third cover 13C.

[0049] The tape conveying device 5 conveys the base material tape Tb wound around the reel 14 to the crimping device 7. The tape conveying device 5 includes: a first drive roller 15, a second drive roller 16, and a third drive roller 17.

[0050] In a state where the base material tape Tb is conveyed by the tape conveying device 5, the adhesive coating device 6 applies an adhesive Tg to the base material tape Tb. The adhesive coating device 6 applies the adhesive Tg to the base material tape Tb before the base material tape Tb is conveyed to the crimping device 7. By applying the adhesive Tg to the base material tape Tb, an adhesive tape T is generated. The adhesive coating device 6 has: a pump 37 that is driven to supply the adhesive Tg to the base material tape Tb, and a valve 38 that can cut off the supply of the adhesive Tg. The adhesive tape T generated in the adhesive coating device 6 is conveyed by the tape conveying device 5 to the crimping device 7.

[0051] The crimping device 7 joins the adhesive tape T and the sheet M. The crimping device 7 includes: a heating nozzle 40, a first crimping roller 41, a second crimping roller 42, a first support member 43, a second support member 44, and a lifting actuator 45.

[0052] The heating nozzle 40 functions as a heating device and heats the adhesive tape T before the adhesive tape T enters between the first crimping roller 41 and the second crimping roller 42. The heating nozzle 40 ejects hot air for heating the adhesive tape T.

[0053] The first crimping roller 41 and the second crimping roller 42 press the adhesive tape T and the sheet M heated by the heating nozzle 40, and join the adhesive tape T and the sheet M.

[0054] The first support member 43 supports the first crimping roller 41 so as to be rotatable. The second support member 44 supports the second crimping roller 42 so as to be rotatable. The lifting actuator 45 generates power for moving the first support member 43 in the vertical direction.

[0055] The operation panel 8 is operated by the operator of the bonding device 1. The operation panel 8 is disposed above the support portion 3A. The operation panel 8 has a display device and an input device. The display device includes, for example, a flat panel display such as a liquid crystal display. The input device includes a touch sensor. In the present embodiment, the operation panel 8 includes a touch panel. By operating the operation panel 8 by the operator, an operation signal is sent from the operation panel 8 to the controller 11.

[0056] The operation pedal 9 is operated by the operator of the bonding device 1. The operation pedal 9 is operated by the operator's foot. The operation pedal 9 is disposed on the bottom plate 12C. The operation pedal 9 is operated to switch the drive and stop of the bonding device 1. By operating the operation pedal 9 by the operator, an operation signal is sent from the operation pedal 9 to the controller 11. By operating the operation pedal 9, the belt conveyor device 5, the adhesive coating device 6, and the crimping device 7 are respectively driven. By releasing the operation of the operation pedal 9, the drives of the belt conveyor device 5, the adhesive coating device 6, and the crimping device 7 are stopped.

[0057] The jet cooler 10 supplies cold air. In the present embodiment, the jet cooler 10 supplies compressed cooling air as cold air.

[0058] The controller 11 outputs a control signal for controlling the bonding device 1. The controller 11 includes a computer system. The controller 11 has a processor 111 such as a CPU (Central Processing Unit), a memory 112 such as a ROM (Read Only Memory) or a RAM (Random Access Memory), and a storage unit 113. The functions of the controller 11 are stored in the storage unit 113 as a computer program. The processor 111 reads out the computer program from the storage unit 113 and expands it in the memory 112, and executes processing according to the computer program. In addition, the computer program can also be sent to the controller 11 via a network.

[0059] <Adhesive tape>

[0060] Figure 5 is a side view schematically showing the adhesive tape T and the sheet M of the present embodiment. Figure 6 is a top view schematically showing the adhesive tape T and the sheet M of the present embodiment.

[0061] The adhesive tape T has a base tape Tb and an adhesive Tg coated on the coating surface of the base tape Tb. The coating surface of the base tape Tb is either the front surface or the back surface of the base tape Tb. The base tape Tb is made of synthetic resin.

[0062] The base tape Tb is conveyed by the tape conveying device 5 to the crimping device 7 via the adhesive coating device 6. In a state where the base tape Tb is conveyed by the tape conveying device 5, the adhesive coating device 6 coats the adhesive Tg on the coating surface of the base tape Tb. The adhesive coating device 6 coats the adhesive Tg on the coating surface of the base tape Tb before the base tape Tb is conveyed to the crimping device 7. The base tape Tb and the sheet M are joined via the adhesive Tg. The adhesive Tg is thermoplastic. The adhesive Tg is melted by heating. The adhesive Tg exerts an adhesive force by curing in a state of contact with the sheet M.

[0063] In the present embodiment, the adhesive Tg is a reactive polyurethane (PUR: Poly Urethane Reactive) moisture-curing type hot melt adhesive. The adhesive Tg undergoes moisture curing. The adhesive Tg is cured once by cooling and cured twice by moisture. The adhesives Tg cured once can be restored to a molten state by heating. The adhesives Tg cured twice cannot be restored to a molten state even by heating. The tape conveying device 5 conveys the adhesive tape T to the crimping device 7 before the adhesive Tg coated on the base tape Tb by the adhesive coating device 6 is cured twice.

[0064] The sheet M is used for clothing. The sheet M only needs to be able to be joined to the adhesive tape T. The sheet M can be cloth, can be a plastic sheet (Japanese: ビニールシート), or can be a rubber sheet. The cloth can be a woven cloth or a non-woven cloth.

[0065] As Figure 6 shown, a stitch St is formed on the sheet M. The stitch St is formed on the sheet M by a sewing machine (not shown). In the present embodiment, the crimping device 7 joins the adhesive tape T and the sheet M in such a way that the adhesive tape T covers the stitch St. In the case where waterproofness is required for the clothing, the adhesive tape T covers the stitch St, thereby suppressing rainwater from passing through the sheet M via the stitch St.

[0066] In the present embodiment, the adhesive tape T and the sheet M are joined in such a way that the adhesive agent Tg slightly protrudes from the edge in the short side direction of the base material tape Tb. The adhesive agent Tg that slightly protrudes from the edge in the short side direction of the base material tape Tb is cured twice, thereby being able to suppress the adhesive tape T from peeling off the sheet M. For example, even if the edge of the base material tape Tb is scratched by the fingernail or the like of the user of the clothing, the adhesive tape T can be suppressed from peeling off the sheet M.

[0067] <Tape conveying device>

[0068] Figure 7 is a view of the bonding device 1 of the present embodiment as observed from the left. Figure 8 is a view of the bonding device 1 of the present embodiment as observed from the left front. Figure 7 and Figure 8 respectively show the state where the cover 13 has been removed from the support mechanism 4.

[0069] The tape conveying device 5 includes: a first drive roller 15, guide rods 19A, 19B, a driven roller 20, a second drive roller 16, driven rollers 21, 22, 23, a tension adjusting roller 18, driven rollers 24, 25, 26, 27, a third drive roller 17, a guide rod 19C, and a driven roller 28.

[0070] The base material tape Tb is wound around a reel 14. The reel 14 is rotatably supported on the upper part of the first support member 4A of the support mechanism 4. The reel 14 rotates about a reel rotation axis extending in the left-right direction, thereby paying out the base material tape Tb. The base material tape Tb paid out from the reel 14 is conveyed toward the crimping device 7.

[0071] In the following description, on the conveying path of the adhesive tape T, the position close to the reel 14 or the direction close to the reel 14 is appropriately referred to as the upstream side, and the position close to the crimping device 7 or the direction close to the crimping device 7 is appropriately referred to as the downstream side.

[0072] In addition, in the following description, the direction in which the base material tape Tb is conveyed from the reel 14 toward the crimping device 7 is appropriately referred to as the positive direction, and the direction opposite to the positive direction is appropriately referred to as the negative direction.

[0073] The tape conveyance device 5 can convey the base material tape Tb in the positive direction and the negative direction, respectively. At least one of the first drive roller 15, the second drive roller 16, and the third drive roller 17 rotates forward to convey the base material tape Tb in the positive direction. By rotating at least one of the first drive roller 15, the second drive roller 16, and the third drive roller 17 in the reverse direction, the base material tape Tb is conveyed in the negative direction.

[0074] On the conveyance path of the adhesive tape T, the third drive roller 17 among the first drive roller 15, the second drive roller 16, the tension adjustment roller 18, and the third drive roller 17 is disposed on the most downstream side, the tension adjustment roller 18 is disposed on the downstream side following the third drive roller 17, the second drive roller 16 is disposed on the downstream side following the tension adjustment roller 18, and the first drive roller 15 is disposed on the most upstream side. The base material tape Tb unwound from the reel 14 is conveyed in the positive direction in such a manner that it sequentially passes through the first drive roller 15, the guide rod 19A, the guide rod 19B, the driven roller 20, the second drive roller 16, the driven roller 21, the driven roller 22, the driven roller 23, the tension adjustment roller 18, the driven roller 24, the driven roller 25, the driven roller 26, the driven roller 27, the third drive roller 17, the guide rod 19C, and the driven roller 28, and then supplied to the crimping device 7.

[0075] The first drive roller 15 is disposed on the downstream side of the reel 14 on the conveyance path of the base material tape Tb. The first drive roller 15 is disposed immediately after the reel 14 on the conveyance path of the base material tape Tb. The first drive roller 15 is disposed below the reel 14. The first drive roller 15 is rotatably supported by the second support member 4B of the support mechanism 4. The first drive roller 15 rotates forward to convey the base material tape Tb to the crimping device 7 via the adhesive coating device 6. The first drive roller 15 is connected to a first drive motor (not shown). The first drive roller 15 rotates forward or reversely using the rotational force generated by the first drive motor. A pinch roller 15A is disposed at a position opposed to the first drive roller 15. The first drive roller 15 rotates in a state where the base material tape Tb is clamped between it and the pinch roller 15A.

[0076] The guide bars 19A, 19B, and the driven roller 20 respectively support the base material tape Tb. On the conveyance path of the base material tape Tb, the guide bars 19A, 19B, and the driven roller 20 are respectively disposed between the first drive roller 15 and the second drive roller 16. The guide bars 19A and 19B are respectively disposed at positions lower than the first drive roller 15. The guide bar 19B is disposed at a position in front of the guide bar 19A. The driven roller 20 is disposed at a position lower than the guide bars 19A and 19B. The guide bars 19A and 19B are respectively supported by the second support member 4B of the support mechanism 4. The driven roller 20 is rotatably supported by the third support member 4C of the support mechanism 4. The driven roller 20 is disposed at a position in front of the second drive roller 16.

[0077] The second drive roller 16 is disposed at a position downstream of the driven roller 20 on the conveyance path of the base material tape Tb. The second drive roller 16 is rotatably supported by the third support member 4C of the support mechanism 4. The driven roller 20 is disposed at a position in front of the adhesive coating device 6. The second drive roller 16 is disposed at a position behind the adhesive coating device 6. After the base material tape Tb passes through the driven roller 20, the adhesive Tg is coated on the base material tape Tb by the adhesive coating device 6. The second drive roller 16 rotates forward to convey the adhesive tape T to the crimping device 7, and the adhesive tape T is generated by coating the adhesive Tg on the base material tape Tb. The second drive roller 16 is connected to a second drive motor (not shown). The second drive roller 16 rotates forward or backward by the rotational force generated by the second drive motor.

[0078] The surface of the second drive roller 16 in contact with the base material tape Tb is made of rubber. The frictional force of the surface of the second drive roller 16 with respect to the base material tape Tb is large. The frictional force of the surface of the second drive roller 16 is larger than the frictional force of the surface of the first drive roller 15 and the frictional force of the surface of the third drive roller 17. Since the frictional force of the surface of the second drive roller 16 with respect to the base material tape Tb is large, the second drive roller 16 can convey the base material tape Tb even if there is no pinch roller at the position opposed to the second drive roller 16.

[0079] The driven rollers 21, 22, and 23 respectively support the adhesive tape T. On the conveyance path of the base material tape Tb, the driven rollers 21, 22, and 23 are respectively disposed between the second drive roller 16 and the tension adjustment roller 18. The driven roller 21 is disposed at a position lower than the second drive roller 16. The driven roller 22 is disposed in front of and above the driven roller 21. The driven roller 23 is disposed in front of and above the driven roller 22. The driven roller 21 is supported by the third support member 4C of the support mechanism 4. The driven rollers 22 and 23 are supported by the first support member 4A of the support mechanism 4. The driven roller 23 is supported by the upper end portion of the first support member 4A.

[0080] The tension adjusting roller 18 supports the adhesive tape T. The tension adjusting roller 18 adjusts the tension applied to the adhesive tape T. The tension adjusting roller 18 is disposed at a position lower than the driven roller 23. The tension adjusting roller 18 is supported by the first support member 4A so as to be swingable in the vertical direction. A guide member 29 is provided at the lower part of the first support member 4A. The guide member 29 guides the tension adjusting roller 18 in the vertical direction. The tension adjusting roller 18 swings in the vertical direction to adjust the tension applied to the adhesive tape T. The tension adjusting roller 18 swings in the vertical direction so that the tension applied to the adhesive tape T is not excessive.

[0081] The driven rollers 24, 25, 26, and 27 respectively support the adhesive tape T. On the conveyance path of the base material tape Tb, the driven rollers 24, 25, 26, and 27 are respectively disposed between the tension adjusting roller 18 and the third driving roller 17. The driven roller 24 is disposed at a position in front of and above the tension adjusting roller 18. The driven roller 25 is disposed at a position in front of and below the driven roller 24. The driven roller 26 is disposed at a position in front of and above the driven roller 25. The driven roller 27 is disposed at a position in front of and above the driven roller 26. The driven roller 24 is supported by the first support member 4A of the support mechanism 4. The driven rollers 25 and 26 are supported by the third support member 4C of the support mechanism 4. The driven roller 27 is supported by the fourth support member 4D of the support mechanism 4.

[0082] The third driving roller 17 is disposed at a position in front of and below the driven roller 27. The third driving roller 17 is supported by the fifth support member 4E of the support mechanism 4 so as to be rotatable. The third driving roller 17 rotates forward to convey the adhesive tape T to the crimping device 7. The third driving roller 17 is connected to a third driving motor (not shown). The third driving roller 17 rotates forward or backward by the rotational force generated by the third driving motor. A pinch roller 17A is disposed at a position opposed to the third driving roller 17. The third driving roller 17 rotates in a state of clamping the adhesive tape T between it and the pinch roller 17A.

[0083] The guide rod 19C and the driven roller 28 respectively support the adhesive tape T. On the conveyance path of the base material tape Tb, the guide rod 19C and the driven roller 28 are respectively disposed between the third driving roller 17 and the crimping device 7. The guide rod 19C is disposed at a position in front of and below the third driving roller 17. The driven roller 28 is disposed at a position in front of and above the guide rod 19C. The guide rod 19C and the driven roller 28 are supported by the fifth support member 4E of the support mechanism 4.

[0084] <Adhesive Coating Device>

[0085] Figure 9 It is a view of the adhesive coating device 6 of the present embodiment as viewed from the left. Figure 10This is a view of the adhesive coating device 6 of the present embodiment as observed from the left front. Figure 9 This corresponds to Figure 7 a magnified view of a part of Figure 10 This corresponds to Figure 8 a magnified view of a part of

[0086] The adhesive coating device 6 includes a cylinder 30, a pump housing 31, a valve housing 32, a coating nozzle 33, a support plate 34, an adhesive cooling nozzle 35, a feeder 36 (refer to Figure 7 ), a pump 37 (refer to Figure 4 ), and a valve 38 (refer to Figure 4 ).

[0087] The cylinder 30 stores the adhesive Tg. The pump housing 31 stores the pump 37. The valve housing 32 stores the valve 38. The cylinder 30, the pump housing 31, and the valve housing 32 each have a heater (not shown) for heating the adhesive Tg. The heater suppresses an increase in the viscosity of the adhesive Tg. The pump 37 is driven to supply the adhesive Tg stored in the cylinder 30 to the coating nozzle 33. The valve 38 is disposed in the flow path of the adhesive Tg between the pump 37 and the coating nozzle 33. The valve 38 opens or closes the flow path of the adhesive Tg between the pump 37 and the coating nozzle 33.

[0088] Figure 11 This is a view of the pump 37 of the present embodiment as observed from the left front. In the present embodiment, the pump 37 is a gear pump. The pump 37 is stored in the pump housing 31. The pump 37 includes a first gear 37A and a second gear 37B that meshes with the first gear 37A. The adhesive Tg stored in the cylinder 30 is supplied between the first gear 37A and the second gear 37B via a supply pipe 39. As Figure 7 shown, the feeder 36 is connected to the upper end portion of the cylinder 30. The feeder 36 pressurizes the internal space of the cylinder 30 and pushes out the adhesive Tg stored in the cylinder 30 toward the pump 37. The first gear 37A and the second gear 37B rotate synchronously to supply the adhesive Tg from the pump 37 to the coating nozzle 33.

[0089] The valve 38 is an electromagnetic valve. The valve 38 is stored in the valve housing 32. The valve 38 is disposed in the flow path of the adhesive Tg between the pump 37 and the coating nozzle 33. By opening the valve 38, the adhesive Tg is supplied from the pump 37 to the coating nozzle 33. By closing the valve 38, the supply of the adhesive Tg from the pump 37 to the coating nozzle 33 is stopped.

[0090] The coating nozzle 33 coats the base material tape Tb with the adhesive Tg. The coating nozzle 33 has a discharge port 33A for discharging the adhesive Tg. In a state where the base material tape Tb is being conveyed in the positive direction by the tape conveying device 5, the coating nozzle 33 coats the coating surface of the base material tape Tb with the adhesive. By coating the coating surface of the base material tape Tb with the adhesive Tg, an adhesive tape T is formed.

[0091] The coating nozzle 33 is disposed between the driven roller 20 and the second driving roller 16 on the conveyance path of the base material belt Tb. The second driving roller 16 is disposed at a position downstream of the driven roller 20 and the coating nozzle 33 on the conveyance path of the base material belt Tb. The driven roller 20 supports the base material belt Tb. The second driving roller 16 rotates forward to convey the base material belt Tb in the positive direction.

[0092] The base material belt Tb is supported by the driven roller 20 and the second driving roller 16 such that the coating surface faces upward between the driven roller 20 and the second driving roller 16. In the present embodiment, the base material belt Tb is supported by the driven roller 20 and the second driving roller 16 such that the coating surface is parallel to the horizontal plane between the driven roller 20 and the second driving roller 16.

[0093] The coating nozzle 33 is disposed above the base material belt Tb between the driven roller 20 and the second driving roller 16. The coating nozzle 33 coats the adhesive Tg on the coating surface of the base material belt Tb from above the base material belt Tb. By discharging the adhesive Tg from the discharge port 33A, the adhesive Tg is coated on the coating surface of the base material belt Tb.

[0094] The support plate 34 supports the base material belt Tb from below between the driven roller 20 and the second driving roller 16. The base material belt Tb is conveyed from the driven roller 20 toward the second driving roller 16 while being in contact with the upper surface of the support plate 34. While the base material belt Tb is supported by the support plate 34, the coating nozzle 33 coats the adhesive Tg on the base material belt Tb.

[0095] The adhesive cooling nozzle 35 functions as a second cooling device to cool the adhesive Tg coated on the base material belt Tb. The adhesive cooling nozzle 35 is disposed between the coating nozzle 33 and the heating nozzle 40 on the conveyance path of the base material belt Tb. The adhesive cooling nozzle 35 is disposed at a position downstream of the coating nozzle 33 on the conveyance path of the base material belt Tb.

[0096] The adhesive cooling nozzle 35 ejects cold air for cooling the adhesive Tg coated on the base material belt Tb. The adhesive cooling nozzle 35 has an ejection port 35A for ejecting cold air toward the adhesive Tg. The cold air supplied from the air jet cooler 10 is ejected from the ejection port 35A. The adhesive cooling nozzle 35 cools the adhesive Tg immediately after the adhesive Tg is coated on the base material belt Tb.

[0097] The ejection port 35A is disposed at a position facing the adhesive tape T supported by the second driving roller 16. The adhesive cooling nozzle 35 ejects cold air toward the adhesive tape T supported by the second driving roller 16. While the base material belt Tb is supported by the second driving roller 16, the adhesive cooling nozzle 35 ejects cold air toward the adhesive Tg.

[0098] The adhesive Tg is cured once by cooling. By curing once with the adhesive Tg, it is possible to suppress: on the conveyance path of the adhesive tape T between the adhesive cooling nozzle 35 and the crimping device 7, the adhesive Tg dripping from the base material tape Tb or adhering to the components of the bonding device 1. The components of the bonding device 1 include: the driving roller and the driven roller of the tape conveyance device 5 disposed on the conveyance path of the adhesive tape T between the adhesive cooling nozzle 35 and the crimping device 7.

[0099] As described above, the surface of the second driving roller 16 is made of rubber, and the frictional force of the surface of the second driving roller 16 with respect to the base material tape Tb is large. At a position opposed to the second driving roller 16, the adhesive cooling nozzle 35 is disposed, and the pinch roller is not disposed.

[0100] <Crimping device>

[0101] Figure 12 It is a view of observing the crimping device 7 of the present embodiment from the left. Figure 13 It is a view of observing the crimping device 7 of the present embodiment from the left rear. Figure 14 It is a view of observing the crimping device 7 of the present embodiment from the left front.

[0102] The crimping device 7 has: a heating nozzle 40, a first crimping roller 41, a second crimping roller 42, a strip 50, a first support member 43, a second support member 44, a lifting actuator 45 (see Figure 4 ) and a cooling device 51.

[0103] The heating nozzle 40 heats the adhesive tape T before the adhesive tape T enters between the first crimping roller 41 and the second crimping roller 42. The heating nozzle 40 heats the adhesive tape T in a state of not contacting the adhesive tape T. The heating nozzle 40 heats the adhesive tape T in a state of facing the adhesive tape T with a gap therebetween. The heating nozzle 40 has a jet port 40A for jetting hot air. The jet port 40A is disposed so as to face the boundary between the first crimping roller 41 and the second crimping roller 42. The adhesive tape T is heated by the hot air jetted from the jet port 40A.

[0104] The heating nozzle 40 is supported by the seventh support member 4G of the support mechanism 4. The seventh support member 4G is rod-shaped. The heating nozzle 40 is disposed at a position rearward of the first crimping roller 41 and the second crimping roller 42. The heating nozzle 40 supplies hot air to the adhesive tape T from a position rearward of the first crimping roller 41 and the second crimping roller 42.

[0105] The first crimping roller 41 and the second crimping roller 42 are disposed in the vertical direction. The first crimping roller 41 is disposed at a position above the second crimping roller 42.

[0106] The first crimping roller 41 and the second crimping roller 42 press the adhesive tape T and the sheet M heated by the heating nozzle 40, and join the adhesive tape T and the sheet M. In a state where the adhesive tape T is conveyed in the forward direction by the tape conveying device 5, the first crimping roller 41 and the second crimping roller 42 press the adhesive tape T and the sheet M. The first crimping roller 41 and the second crimping roller 42 are a pair of pressing rollers that cooperate to join the adhesive tape T and the sheet M. The first crimping roller 41 and the second crimping roller 42 rotate synchronously.

[0107] The first drive roller 15, the second drive roller 16, and the third drive roller 17 rotate forward respectively to convey the adhesive tape T between the strip 50 and the second crimping roller 42. The adhesive tape T and the sheet M enter between the first crimping roller 41 and the second crimping roller 42 from positions behind the first crimping roller 41 and the second crimping roller 42 respectively. The adhesive tape T enters between the first crimping roller 41 and the second crimping roller 42 from a position above and behind the first crimping roller 41. The sheet M enters between the first crimping roller 41 and the second crimping roller 42 from a position below and behind the second crimping roller 42. The adhesive tape T and the sheet M that have passed between the first crimping roller 41 and the second crimping roller 42 retreat forward from between the first crimping roller 41 and the second crimping roller 42 respectively.

[0108] The surface of the first crimping roller 41 facing the adhesive tape T is formed of a material to which the adhesive Tg hardly adheres. Similarly to the surface of the first crimping roller 41, the surface of the second crimping roller 42 is also formed of a material to which the adhesive Tg hardly adheres. That is, the surfaces of the first crimping roller 41 and the second crimping roller 42 are non-adhesive with respect to the adhesive Tg. Examples of the material to which the adhesive Tg hardly adheres include silicon or tetrafluoroethylene resin (PTFE: polytetrafluoroethylene).

[0109] The first crimping roller 41 is rotatably supported by the first support member 43. The first crimping roller 41 is connected to a first motor (not shown). The first crimping roller 41 rotates by the rotational force generated by the first motor. The first crimping roller 41 rotates about a first rotation axis extending in the left-right direction.

[0110] The second crimping roller 42 is rotatably supported by the second support member 44. The second crimping roller 42 is connected to a second motor (not shown). The second crimping roller 42 rotates by the rotational force generated by the second motor. The second crimping roller 42 rotates about a second rotation axis extending in the left-right direction.

[0111] The strip 50 is supplied together with the adhesive tape T and the sheet M between the first crimping roller 41 and the second crimping roller 42. The strip 50 enters between the first crimping roller 41 and the second crimping roller 42 from a position behind the first crimping roller 41 and the second crimping roller 42. The strip 50 that has passed between the first crimping roller 41 and the second crimping roller 42 retreats forward from between the first crimping roller 41 and the second crimping roller 42.

[0112] The strip 50 is annular. The strip 50 is an endless belt. A part of the strip 50 hangs on the first crimping roller 41. A part of the strip 50 hangs on the driven roller 47 provided in front of the first crimping roller 41. The driven roller 47 is rotatably supported by the sixth support member 4F of the support mechanism 4.

[0113] A pulley 46 is arranged between the first crimping roller 41 and the driven roller 47. A pulley 48 and a pulley 49 are arranged between the driven roller 47 and the first crimping roller 41. The pulley 46, the pulley 48, and the pulley 49 respectively support the strip 50. The pulley 46, the pulley 48, and the pulley 49 are respectively supported by the sixth support member 4F of the support mechanism 4.

[0114] The first crimping roller 41 rotates to move the strip 50. The strip 50 moving forward from the lower part of the first crimping roller 41 enters the lower part of the driven roller 47 via the pulley 46. The strip 50 moving backward from the upper part of the driven roller 47 enters the upper part of the first crimping roller 41 via the pulley 48 and the pulley 49.

[0115] The adhesive tape T and the sheet M are arranged between the strip 50 hanging on the first crimping roller 41 and the second crimping roller 42. Between the first crimping roller 41 and the second crimping roller 42, the strip 50 is arranged at a position above the adhesive tape T. Between the first crimping roller 41 and the second crimping roller 42, the sheet M is arranged at a position below the adhesive tape T. The strip 50 faces the base tape Tb of the adhesive tape T. The sheet M contacts the adhesive Tg of the adhesive tape T. The second crimping roller 42 presses the adhesive tape T and the sheet M between it and the strip 50 hanging on the first crimping roller 41.

[0116] The surface of the strip 50 facing the adhesive tape T is formed of a material to which the adhesive Tg hardly adheres. That is, the surface of the strip 50 is non-adhesive with respect to the adhesive Tg. Examples of the material to which the adhesive Tg hardly adheres include silicon or tetrafluoroethylene resin (PTFE: polytetrafluoroethylene).

[0117] The first support member 43 is supported by a support mechanism 4 so as to be movable in the vertical direction. The first support member 43 can be moved in the vertical direction by the power generated by a lifting actuator 45. As the lifting actuator 45, a cylinder can be exemplified. By driving the lifting actuator 45, the first crimping roller 41 supported by the first support member 43 can be moved in the vertical direction. The second crimping roller 42 does not move in the vertical direction.

[0118] In a state where the strip 50, the adhesive tape T, and the sheet M are disposed between the first crimping roller 41 and the second crimping roller 42, the first crimping roller 41 descends so as to approach the second crimping roller 42, whereby the strip 50, the adhesive tape T heated by the heating nozzle 40, and the sheet M are pressed by the first crimping roller 41 and the second crimping roller 42. The strip 50, the adhesive tape T heated by the heating nozzle 40, and the sheet M are pressed by the first crimping roller 41 and the second crimping roller 42, whereby the adhesive tape T and the sheet M are joined.

[0119] Figure 15 FIG. is a view of the cooling device 51 of the present embodiment as viewed from the front left. Figure 16 FIG. is a view of the cooling device 51 of the present embodiment as viewed from the lower rear. Figure 17 FIG. is a view of the cooling device 51 of the present embodiment as viewed from the lower rear.

[0120] The cooling device 51 functions as a first cooling device and cools the adhesive tape T that has retreated from between the first crimping roller 41 and the second crimping roller 42. The cooling device 51 is disposed at a position in front of the first crimping roller 41 and the second crimping roller 42. The cooling device 51 is disposed so as to face the boundary between the first crimping roller 41 and the second crimping roller 42. The cooling device 51 cools the adhesive tape T that has retreated forward from between the first crimping roller 41 and the second crimping roller 42. The cooling device 51 cools the adhesive tape T immediately after the adhesive tape T heated by the heating nozzle 40 is joined to the sheet M.

[0121] The cooling device 51 cools the adhesive tape T joined to the sheet M by the first crimping roller 41 and the second crimping roller 42. In a state where the adhesive tape T that has retreated from between the first crimping roller 41 and the second crimping roller 42 is clamped by the strip 50 and the sheet M, the cooling device 51 cools the adhesive tape T. By cooling the adhesive tape T that has retreated from between the first crimping roller 41 and the second crimping roller 42, the adhesive Tg that has retreated from between the first crimping roller 41 and the second crimping roller 42 is cooled.

[0122] The cooling device 51 cools the strip 50 that retreats forward between the first crimping roller 41 and the second crimping roller 42, and cools the adhesive tape T. The cooling device 51 is disposed above the strip 50 between the first crimping roller 41 and the pulley 46. The cooling device 51 cools the adhesive Tg via the strip 50.

[0123] The cooling device 51 has a housing 52 and a radiator 53 housed in the housing 52. The radiator 53 has: a substrate 53A, and a plurality of fins 53B protruding upward from the upper surface of the substrate 53A. The substrate 53A is arranged to contact the strip 50. The lower surface of the substrate 53A contacts the upper surface of the strip 50 that moves forward from the lower part of the first crimping roller 41. The strip 50 moves in a state of contacting the lower surface of the substrate 53A.

[0124] An opening 52A is provided on the upper surface of the housing 52. The cold air supplied from the jet cooler 10 flows into the internal space of the housing 52 via the opening 52A. The cold air flowing into the internal space of the housing 52 via the opening 52A is supplied to the fins 53B. The cold air flows between the adjacent fins 53B. Since the cold air flows between the adjacent fins 53B, the substrate 53A is cooled. Since the substrate 53A is cooled, the strip 50 in contact with the lower surface of the substrate 53A is cooled. Since the strip 50 is cooled, the adhesive tape T sandwiched between the strip 50 and the sheet M is cooled via the strip 50.

[0125] The cold air flowing between the adjacent fins 53B flows out from an outlet 54 provided between the rear end portion of the substrate 53A and the rear end portion of the housing 52. The cold air flowing out from the outlet 54 is blown onto the strip 50. The strip 50 is also cooled by the cold air flowing out from the outlet 54. Since the strip 50 is cooled, the adhesive tape T is cooled.

[0126] <Operation>

[0127] Next, with reference to Figure 18 、 Figure 19 、 Figure 20 and Figure 21 an example of the operation of the bonding device 1 of the present embodiment will be described. Figure 18 is a flowchart showing the operation of the bonding device 1 of the present embodiment. Figure 19 is a diagram for explaining the operation of the adhesive coating device 6 of the present embodiment. Figure 20 and Figure 21 are diagrams for explaining the operation of the crimping device 7 of the present embodiment, respectively. Figure 19 is a view of the adhesive coating device 6 as viewed from the left. Figure 20 is a view of the crimping device 7 as viewed from the left. Figure 21 is a view of the crimping device 7 as viewed from the rear.

[0128] The operator of the bonding device 1 operates the operation pedal 9 with his foot to start the bonding device 1. By operating the operation pedal 9, an operation signal for driving the bonding device 1 is sent from the operation pedal 9 to the controller 11. The controller 11 acquires the operation signal from the operation pedal 9 (step S1).

[0129] The controller 11 drives the belt conveyor device 5 to convey the adhesive tape T in the positive direction (step S2).

[0130] The drive belt conveyor device 5 includes driving the first drive roller 15, the second drive roller 16, and the third drive roller 17 respectively. The controller 11 rotates the first drive roller 15, the second drive roller 16, and the third drive roller 17 forward respectively to convey the adhesive tape T in the positive direction. The controller 11 starts the driving of the first drive roller 15, the driving of the second drive roller 16, and the driving of the third drive roller 17 simultaneously.

[0131] The controller 11 drives the adhesive applicator device 6 and the crimping device 7 respectively (step S3).

[0132] Driving the adhesive applicator device 6 includes opening the valve 38 and driving the pump 37. By driving the pump 37 with the valve 38 open, the adhesive Tg is discharged from the discharge port 33A of the coating nozzle 33.

[0133] Driving the crimping device 7 includes: in a state where the strip 50, the adhesive tape T, and the sheet M are disposed between the first crimping roller 41 and the second crimping roller 42, bringing the first crimping roller 41 closer to the second crimping roller 42 so that the adhesive tape T and the sheet M are pressed by the first crimping roller 41 and the second crimping roller 42; rotating the first crimping roller 41 and the second crimping roller 42 respectively; and ejecting hot air from the ejection port 40A of the heating nozzle 40.

[0134] When the first drive roller 15, the second drive roller 16, and the third drive roller 17 rotate forward respectively, the first crimping roller 41 and the second crimping roller 42 rotate forward respectively so that the strip 50, the adhesive tape T, and the sheet M between the first crimping roller 41 and the second crimping roller 42 move forward.

[0135] Since the first crimping roller 41 rotates forward, the strip 50 rotates. Since the first crimping roller 41 rotates forward, the strip 50 moving forward from the lower part of the first crimping roller 41 enters the lower part of the driven roller 47 via the pulley 46. The strip 50 moving backward from the upper part of the driven roller 47 enters the upper part of the first crimping roller 41 via the pulley 48 and the pulley 49.

[0136] By driving the belt conveyor 5, the adhesive coating device 6, and the crimping device 7 respectively, the adhesive tape T formed by coating the adhesive Tg on the base tape Tb in the adhesive coating device 6 is conveyed between the strip 50 and the second crimping roller 42. In the crimping device 7, the adhesive tape T is joined to the sheet M.

[0137] In addition, the processes of step S2 and step S3 can also be implemented simultaneously.

[0138] As Figure 19 shown, the base tape Tb conveyed in the positive direction moves from the driven roller 20 toward the second drive roller 16. The lower surface of the base tape Tb is supported by the support plate 34. In a state where the base tape Tb is supported by the support plate 34, the coating nozzle 33 coats the adhesive Tg on the upper surface of the base tape Tb. The base tape Tb that has passed below the coating nozzle 33 is disposed at a position facing the ejection port 35A of the adhesive cooling nozzle 35 in a state of being supported by the second drive roller 16. Cold air is ejected from the ejection port 35A toward the adhesive Tg coated on the base tape Tb. By ejecting cold air onto the adhesive Tg, the adhesive Tg is cooled and undergoes primary curing.

[0139] As Figure 20 and Figure 21 shown, the adhesive tape T having the adhesives Tg after primary curing is supplied between the first crimping roller 41 and the second crimping roller 42. The adhesive tape T enters between the first crimping roller 41 and the second crimping roller 42 from a position above and behind the first crimping roller 41. The sheet M enters between the first crimping roller 41 and the second crimping roller 42 from a position below and behind the second crimping roller 42. The strip 50 enters between the first crimping roller 41 and the second crimping roller 42 together with the adhesive tape T and the sheet M from a position behind the first crimping roller 41 and the second crimping roller 42.

[0140] The heating nozzle 40 ejects hot air onto the adhesive Tg before the adhesive tape T enters between the first crimping roller 41 and the second crimping roller 42. The ejection port 40A of the heating nozzle 40 faces the adhesive Tg of the adhesive tape T. The ejection port 40A ejects hot air onto the adhesive Tg of the adhesive tape T. The adhesive Tg is heated by the hot air ejected from the ejection port 40A. The adhesive Tg melts by being heated by the hot air. In a state where the adhesive Tg is melted, the adhesive tape T enters between the first crimping roller 41 and the second crimping roller 42. Between the first crimping roller 41 and the second crimping roller 42, the adhesive Tg is disposed on the lower surface of the base tape Tb. Between the first crimping roller 41 and the second crimping roller 42, the sheet M is disposed below the adhesive tape T. Between the first crimping roller 41 and the second crimping roller 42, the melted adhesive Tg comes into contact with the sheet M. The adhesive tape T and the sheet M are joined by the first crimping roller 41 and the second crimping roller 42.

[0141] As Figure 21As shown, in the left - right direction, the size (width) of the adhesive tape T is smaller than the size (width) of the strip 50. In the left - right direction, the adhesive tape T does not protrude from the strip 50.

[0142] The adhesive tape T passing between the first crimping roller 41 and the second crimping roller 42 is cooled by the cooling device 51 in a state of being joined to the sheet M. The cooling device 51 cools the adhesive tape T via the strip 50. The adhesive tape T is cooled by the cooling device 51 in a state of being clamped between the strip 50 and the sheet M. Since the adhesive tape T is cooled by the cooling device 51, the adhesive Tg is cured once. As Figure 20 shown, by the first - stage curing of the adhesive Tg, the adhesive tape T and the sheet M move forward in a state of being joined to each other and separated from the strip 50.

[0143] As described above, the width of the adhesive tape T is smaller than the width of the strip 50. Since the adhesive tape T is pressed by the first crimping roller 41 and the second crimping roller 42, at least a part of the adhesive Tg may protrude from the base tape Tb in the left - right direction. As described above, the strip 50 is non - adhesive with respect to the adhesive Tg. Therefore, it is possible to prevent the adhesive Tg protruding from the base tape Tb from adhering to the strip 50. In addition, the adhesive Tg protruding from the base tape Tb is cooled by the cooling device 51 and is cured once in a state of adhering to the sheet M. By the first - stage curing of the adhesive Tg, the adhesive Tg protruding from the base tape Tb does not adhere to the strip 50 but is separated from the strip 50 together with the sheet M.

[0144] As referred to Figure 6 As described, by performing the second - stage curing in a state where the adhesive Tg protrudes from the base tape Tb, for example, even if the edge of the base tape Tb is scratched by the fingernail of the user of the clothing, it is possible to prevent the adhesive tape T from peeling off from the sheet M.

[0145] The operator of the bonding device 1 can end the bonding operation of the adhesive tape T and the sheet M performed by the bonding device 1 by releasing the operation of the operation pedal 9. The controller 11 determines whether to end the bonding operation of the adhesive tape T and the sheet M. That is, the controller 11 determines whether the operation of the operator on the operation pedal 9 is released. When the operation of the operation pedal 9 is released, no operation signal is sent from the operation pedal 9 to the controller 11, so the controller 11 can determine whether the operation of the operator on the operation pedal 9 is released (step S4).

[0146] When it is determined in step S4 that the bonding operation of the adhesive tape T and the sheet M is not ended (step S4: No), the process returns to step S2, and the bonding operation of the adhesive tape T and the sheet M continues.

[0147] When it is determined in step S4 that the bonding operation of the adhesive tape T and the sheet M is completed (step S4: YES), the controller 11 stops the driving of the adhesive coating device 6 and the crimping device 7 respectively (step S5).

[0148] Stopping the driving of the adhesive coating device 6 includes closing the valve 38 and stopping the driving of the pump 37. By stopping the driving of the pump 37 with the valve 38 closed, the discharge of the adhesive Tg from the discharge port 33A of the coating nozzle 33 is stopped.

[0149] Stopping the driving of the crimping device 7 includes: raising the first crimping roller 41 so as to separate the first crimping roller 41 from the second crimping roller 42; stopping the rotation of the first crimping roller 41 and the second crimping roller 42 respectively; and stopping the ejection of the hot air from the ejection port 40A of the heating nozzle 40.

[0150] After stopping the driving of the adhesive coating device 6 and the crimping device 7 respectively, the controller 11 stops the driving of the tape conveying device 5. In addition, the controller 11 may simultaneously perform the stopping of the driving of the adhesive coating device 6, the stopping of the driving of the crimping device 7, and the stopping of the driving of the tape conveying device 5.

[0151] Stopping the driving of the tape conveying device 5 includes stopping the rotation of the first driving roller 15, the second driving roller 16, and the third driving roller 17 respectively.

[0152] After stopping the driving of the tape conveying device 5, the adhesive coating device 6, and the crimping device 7 respectively, the controller 11 drives the tape conveying device 5 to move the adhesive tape T in the reverse direction by a predetermined distance. After driving the tape conveying device 5 to move the adhesive tape T in the reverse direction by a predetermined distance, the controller 11 stops the driving of the tape conveying device 5 (step S6).

[0153] Moving the adhesive tape T in the reverse direction includes at least reversing the first driving roller 15. The first driving roller 15 is disposed on the upstream side of the coating nozzle 33 in the conveying path of the base tape Tb. Moving the adhesive tape T in the reverse direction may also include reversing the first driving roller 15, the second driving roller 16, and the third driving roller 17 respectively. In the present embodiment, moving the adhesive tape T in the reverse direction includes reversing the first driving roller 15 while the second driving roller 16 and the third driving roller 17 are stopped respectively.

[0154] Figure 22 It is a diagram for explaining the operation of the tape conveying device 5 of the present embodiment. When the adhesive Tg is applied to the base tape Tb, the base tape Tb is conveyed in the forward direction. When it is determined that the bonding operation of the adhesive tape T and the sheet M is completed, the controller 11 stops the tape conveying device 5.

[0155] AsFigure 22 As shown, when the driving of the belt conveyor 5, the adhesive coating device 6, and the crimping device 7 is stopped respectively, it is possible for the adhesive Tg to accumulate in a part of the layer of the adhesive Tg. That is, it is possible to form a liquid accumulation Td of the adhesive Tg in a part of the layer of the adhesive Tg. It is considered that after the driving of the adhesive coating device 6 is stopped, the adhesive Tg remaining in the internal flow path of the coating nozzle 33 flows out from the discharge port 33A to the adhesive tape T, thereby forming the liquid accumulation Td.

[0156] In the present embodiment, after the controller 11 stops the driving of the belt conveyor 5, the adhesive coating device 6, and the crimping device 7 respectively, the controller 11 drives the belt conveyor 5 to move the adhesive tape T in the reverse direction by a predetermined distance. The predetermined distance when moving the adhesive tape T in the reverse direction is the distance at which the liquid accumulation Td of the adhesive Tg is flattened by the coating nozzle 33, where the liquid accumulation Td of the adhesive Tg is formed due to the adhesive Tg remaining in the internal flow path of the coating nozzle 33 after the driving of the adhesive coating device 6 is stopped. That is, the predetermined distance is the distance at which the coating nozzle 33 can contact the liquid accumulation Td when moving the adhesive tape T in the reverse direction. The predetermined distance can be obtained in advance through preliminary experiments or simulations, for example.

[0157] As Figure 22 shown, after the liquid accumulation Td is formed in the layer of the adhesive Tg, the adhesive tape T is moved in the reverse direction so that the liquid accumulation Td is flattened by the coating nozzle 33. The liquid accumulation Td is flattened by the coating nozzle 33, and thus the liquid accumulation Td disappears.

[0158] After the controller 11 moves the adhesive tape T in the reverse direction by a predetermined distance, the controller 11 stops the driving of the belt conveyor 5. That is, after the controller 11 reverses the first driving roller 15 to move the adhesive tape T in the reverse direction by a predetermined distance, the controller 11 stops the first driving roller 15.

[0159] When the adhesive tape T moves in the reverse direction, the tension adjusting roller 18 swings upward. When the driving of the belt conveyor 5 is stopped after the adhesive tape T moves in the reverse direction, the tension adjusting roller 18 swings downward. After the driving of the belt conveyor 5 is stopped, the base material tape Tb moves slightly in the positive direction due to the downward swing of the tension adjusting roller 18.

[0160] As Figure 22 shown, after the liquid accumulation Td is flattened by the coating nozzle 33, it is possible to have a convex portion Te of the adhesive Tg remaining. Due to the swing of the tension adjusting roller 18, the base material tape Tb moves in the positive direction, so that the coating nozzle 33 contacts the convex portion Te. By the coating nozzle 33 contacting the convex portion Te, the convex portion Te disappears.

[0161] In the case of restarting the bonding operation between the adhesive tape T and the sheet M, there is no accumulated liquid Td in the layer of the adhesive Tg, so that uneven coating of the adhesive Tg can be suppressed.

[0162] <Effect>

[0163] As described above, in the present embodiment, the bonding device 1 includes: a first crimping roller 41; a non-adhesive belt-like material 50 that is hung on the first crimping roller 41 and faces the adhesive tape T; a second crimping roller 42 that presses the adhesive tape T and the sheet M between it and the belt-like material 50; and a heating device, namely a heating nozzle 40, that heats the adhesive tape T before the adhesive tape T enters between the belt-like material 50 and the second crimping roller 42. The adhesive tape T has a base tape Tb and an adhesive Tg coated on the base tape Tb. By the adhesive tape T and the sheet M entering between the belt-like material 50 and the second crimping roller 42 and being pressed, the adhesive tape T and the sheet M are joined in such a manner that the adhesive Tg coated on the base tape Tb exposes from the edge in the short side direction of the base tape Tb.

[0164] According to the present embodiment, the first crimping roller 41 is covered by the non-adhesive belt-like material 50, and the second crimping roller 42 is covered by the sheet M, so that contact between the adhesive tape T and the first crimping roller 41 and the second crimping roller 42 can be suppressed. Since contact between the adhesive tape T and the first crimping roller 41 and the second crimping roller 42 can be suppressed, adhesion of the adhesive Tg of the adhesive tape T to the first crimping roller 41 and the second crimping roller 42 can be suppressed.

[0165] The adhesive tape T that retreats from between the first crimping roller 41 and the second crimping roller 42 is cooled by the cooling device 51 in a state of being clamped by the belt-like material 50 and the sheet M. Since the adhesive tape T is cooled by the cooling device 51, the adhesive Tg is cured once. By the adhesive Tg being cured once, the adhesive tape T and the sheet M can move in a state of being joined to each other and separated from the belt-like material 50. Transfer of the adhesive Tg attached to at least one of the first crimping roller 41 and the second crimping roller 42 to the sheet M can be suppressed, so that deterioration of the quality of the clothing as a sewn product can be suppressed.

[0166] The width of the adhesive tape T is smaller than the width of the belt-like material 50. Since the adhesive tape T is pressed by the first crimping roller 41 and the second crimping roller 42, at least a part of the adhesive Tg may expose from the base tape Tb in the left and right directions. The belt-like material 50 is non-adhesive with respect to the adhesive Tg. Therefore, adhesion of the adhesive Tg exposed from the base tape Tb to the belt-like material 50 can be suppressed. In addition, the adhesive Tg exposed from the base tape Tb is cooled by the cooling device 51 and is cured once in a state of being attached to the sheet M. By the adhesive Tg being cured once, the adhesive Tg exposed from the base tape Tb does not adhere to the belt-like material 50 but separates from the belt-like material 50 together with the sheet M.

[0167] The cooling device 51 cools the strip 50 that retreats from between the first crimping roller 41 and the second crimping roller 42, thereby cooling the adhesive tape T. The cooling device 51 can cool the adhesive tape T via the strip 50.

[0168] The cooling device 51 includes a radiator 53 as a first radiator, and the radiator 53 has: a substrate 53A as a first substrate, and fins 53B as first fins protruding from the substrate 53A. Cold air is supplied to the fins 53B. The substrate 53A is arranged to be in contact with the strip 50. By supplying cold air to the fins 53B, the substrate 53A is cooled. Since the substrate 53A is cooled, the strip 50 in contact with the substrate 53A is cooled.

[0169] The bonding device 1 includes: a tape conveying device 5 that conveys a base tape Tb; a coating nozzle 33 that has a discharge port 33A for discharging an adhesive Tg, and coats the adhesive Tg on the coating surface of the base tape Tb in a state where the base tape Tb is being conveyed to generate an adhesive tape T; and an adhesive cooling nozzle 35 as a second cooling device, which is arranged between the coating nozzle 33 and the heating nozzle 40 on the conveying path of the base tape Tb and cools the adhesive Tg coated on the base tape Tb. The adhesive Tg coated on the coating surface of the base tape Tb is cooled by the adhesive cooling nozzle 35, thereby performing primary curing. By performing primary curing of the adhesive Tg, it is possible to suppress: on the conveying path of the adhesive tape T between the adhesive cooling nozzle 35 and the heating nozzle 40, the adhesive Tg drips from the base tape Tb or adheres to the components of the bonding device 1.

[0170] The adhesive cooling nozzle 35 is arranged at a position on the conveying path of the base tape Tb that is downstream of the coating nozzle 33. The adhesive cooling nozzle 35 can cool the adhesive Tg immediately after it is coated on the base tape Tb.

[0171] The tape conveying device 5 has: a driven roller 20 that supports the base tape Tb; and a second driving roller 16 that is arranged at a position on the conveying path of the base tape Tb that is downstream of the driven roller 20 and rotates forward to convey the base tape Tb between the strip 50 and the second crimping roller 42. The adhesive cooling nozzle 35 jets cold air onto the adhesive tape T supported by the second driving roller 16. Since the adhesive tape T is supported by the second driving roller 16, the slack of the adhesive tape T can be suppressed at the second driving roller 16. The adhesive cooling nozzle 35 can jet cold air onto the adhesive tape T with the slack suppressed. The adhesive Tg can be subjected to primary curing without omission.

[0172] [Second Embodiment]

[0173] A description will be given of a second embodiment. In the following description, components that are the same as or equivalent to those of the above-described embodiment are denoted by the same reference numerals, and the description of such components is simplified or omitted.

[0174] Figure 23 FIG. is a view of the cooling device 510 of the present embodiment as viewed from the left. In the above-described embodiment, the cooling device 51 includes a heat sink 53 that contacts the strip 50. In the present embodiment, the cooling device 510 includes a strip cooling nozzle that supplies cold air to the strip 50. The cooling device 510 functions as a first cooling device and cools the adhesive tape T that retreats from between the first crimping roller 41 and the second crimping roller 42. The cooling device 510 has a jet port 510A that jets cold air toward the strip 50. The cold air supplied from the jet air cooler 10 is jetted from the jet port 510A. The cooling device 510 is disposed at a position in front of the first crimping roller 41 and the second crimping roller 42. In a state where the adhesive tape T that retreats forward from between the first crimping roller 41 and the second crimping roller 42 is sandwiched between the strip 50 and the sheet M, the cooling device 51 cools the adhesive tape T. The cooling device 510 cools the adhesive tape T by jetting cold air toward the strip 50. By cooling the adhesive tape T, the adhesive Tg is cooled and undergoes primary curing. By the primary curing of the adhesive Tg, the adhesive Tg exposed from the base material tape Tb does not adhere to the strip 50 but separates from the strip 50 together with the sheet M.

[0175] [Third Embodiment]

[0176] A description will be given of a third embodiment. In the following description, components that are the same as or equivalent to those of the above-described embodiment are denoted by the same reference numerals, and the description of such components is simplified or omitted.

[0177] Figure 24 FIG. is a view of the support plate 340 of the present embodiment as viewed from the left front. The support plate 340 supports the base material tape Tb coated with the adhesive Tg by the coating nozzle 33 from below. In the present embodiment, the support plate 340 functions as a second cooling device and cools the adhesive Tg applied to the base material tape Tb by the adhesive applying device 6. The support plate 340 cools the adhesive Tg from below the base material tape Tb between the driven roller 20 and the second driving roller 16.

[0178] As Figure 24As shown, a radiator 55 is disposed inside the support plate 340. The radiator 55 has a substrate 55A and a plurality of fins 55B protruding downward from the lower surface of the substrate 55A. The cold air from the jet cooler 10 is supplied to the fins 55B. The cold air from the jet cooler 10 flows between the adjacent fins 55B. Since the cold air flows between the adjacent fins 55B, the substrate 55A is cooled. Since the substrate 55A is cooled, the upper surface of the support plate 340 is cooled. The upper surface of the support plate 340 facing the base material tape Tb is cooled by the substrate 55A. The support plate 340 cools the adhesive Tg coated on the base material tape Tb. Since the adhesive Tg is cooled by the support plate 340, it is possible to suppress the adhesive Tg from dripping from the base material tape Tb or adhering to the components of the bonding device 1 on the conveying path of the base material tape Tb between the adhesive coating device 6 and the crimping device 7.

[0179] [Fourth Embodiment]

[0180] The fourth embodiment will be described. In the following description, the same or equivalent components as those in the above embodiments are denoted by the same reference numerals, and the description of these components is simplified or omitted.

[0181] Figure 25 It is a view of the driven roller 23 of the present embodiment observed from the left front. In the present embodiment, the driven roller 23 is disposed on the downstream side of the coating nozzle 33 in the conveying path of the base material tape Tb, and the driven roller 23 functions as a second cooling device to cool the adhesive Tg coated on the base material tape Tb. The driven roller 23 supports the adhesive tape T, which is generated by coating the adhesive Tg on the base material tape Tb in the adhesive coating device 6.

[0182] As Figure 25 shown, the driven roller 23 is cooled by the cooling device 56. The cooling device 56 functions as a second cooling device to cool the adhesive Tg coated on the base material tape Tb. The cooling device 56 is a roller cooling nozzle that jets cold air into the opening 23A provided in the driven roller 23. The cooling device 56 has a jet port 56A for jetting cold air into the opening 23A. The cold air from the jet cooler 10 is jetted from the jet port 56A. The cooling device 56 jets the cold air from the jet cooler into the opening 23A.

[0183] The opening 23A is formed in the driven roller 23 so as to extend in a direction parallel to the rotation axis of the driven roller 23. The opening 23A includes a through hole that penetrates the left end face and the right end face of the driven roller 23. The cold air ejected from the ejection port 56A passes through the opening 23A, thereby cooling the surface of the driven roller 23. Since the surface of the driven roller 23 is cooled, the adhesive Tg coated on the base material tape Tb is cooled. Since the adhesive Tg is cooled by the cooling device 56 in the driven roller 23, it is possible to suppress the adhesive Tg from dripping from the base material tape Tb or adhering to the components of the bonding device 1 on the conveyance path of the base material tape Tb between the driven roller 23 and the crimping device 7.

[0184] [Other embodiments]

[0185] In the above-described embodiment, the heating device that heats the adhesive tape T before it enters between the first crimping roller 41 and the second crimping roller 42 is the heating nozzle 40 that ejects hot air. The heating device only needs to be able to heat the adhesive tape T in a state of not contacting the adhesive tape T. The heating device may be a high-frequency generating device that irradiates the adhesive tape T with high frequency to heat the adhesive tape T, a ultrasonic generating device that irradiates the adhesive tape T with ultrasonic waves to heat the adhesive tape T, a laser emitting device that irradiates the adhesive tape T with laser to heat the adhesive tape T, or a radiant heat device that heats the adhesive tape T using radiant heat.

[0186] In the above-described embodiment, the valve 38 may also be omitted.

Claims

1. A bonding device comprising: A first crimping roller; A non-adhesive belt-like object hung on the first pressing roller and facing the adhesive tape; a second pressing roller for pressing the adhesive tape and the sheet between the second pressing roller and the belt-shaped object; and a heating device for heating the adhesive tape before the adhesive tape enters between the strip and the second pressing roller, The adhesive tape comprises a base tape and an adhesive applied to the base tape. The adhesive tape and the sheet material enter between the belt-shaped object and the second pressing roller and are pressed, so that the adhesive tape and the sheet material are bonded to each other such that the adhesive applied to the base tape is exposed from the edge in the short-side direction of the base tape.

2. The bonding device according to claim 1, characterized in that The width of the adhesive tape is smaller than the width of the belt-shaped object.

3. The bonding device according to claim 1, characterized in that A first cooling device is provided for cooling the adhesive tape when the adhesive tape is withdrawn from between the first pressing roller and the second pressing roller and is sandwiched between the belt-shaped object and the sheet. The first cooling device cools the adhesive tape by cooling the strip-shaped object withdrawn from between the first pressure-bonding roller and the second pressure-bonding roller.

4. The bonding device according to claim 3, characterized in that The first cooling device includes a first heat sink having a first substrate and first fins protruding from the first substrate. supplying cold air to the first fin, The first substrate is configured to be in contact with the ribbon.

5. The bonding device according to claim 3, characterized in that The first cooling device includes a web cooling nozzle for supplying cool air to the web.

6. The bonding device according to claim 1, characterized in that have: a belt conveyor device that conveys a belt of substrate; a coating nozzle having a discharge port for discharging an adhesive, wherein the adhesive is applied to a coating surface of the substrate tape while the substrate tape is being conveyed, thereby producing the adhesive tape; as well as The second cooling device is disposed between the coating nozzle and the heating device on the conveyance path of the substrate tape, and cools the adhesive coated on the substrate tape.

7. The bonding device according to claim 6, characterized in that The second cooling device includes an adhesive cooling nozzle that is disposed on a conveyance path of the substrate tape at a position downstream of the coating nozzle and sprays cold air toward the adhesive.

8. The bonding device according to claim 7, characterized in that The belt conveying device comprises: a driven roller that supports the base belt; and a driving roller that is arranged on the conveying path of the base belt at a position downstream of the driven roller and rotates to convey the base belt between the belt-shaped object and the second pressure-bonding roller. The adhesive cooling nozzle blows the cool air toward the adhesive tape supported by the driving roller.

9. The bonding device according to claim 6, characterized in that: The belt conveying device comprises: a driven roller that supports the base belt; and a driving roller that is arranged on the conveying path of the base belt at a position downstream of the driven roller and rotates to convey the base belt between the belt-shaped object and the second pressure-bonding roller. The substrate belt is supported by the driven roller and the driving roller respectively so that the coating surface faces upward between the driven roller and the driving roller. The coating nozzle applies the adhesive to the coating surface from above the coating surface. The second cooling device includes a support plate configured to cool the adhesive from below the substrate tape between the driven roller and the driving roller.

10. The bonding device according to claim 9, characterized in that A second heat sink is disposed inside the support plate, the second heat sink having a second substrate and second fins protruding from the second substrate. supplying cold air to the second fin, The upper surface of the support plate facing the base material tape is cooled by the second substrate.

11. The bonding device according to claim 6, characterized in that The second cooling device includes a driven roller that is disposed on a conveyance path of the substrate tape at a position downstream of the coating nozzle and supports the adhesive tape.

12. The bonding device according to claim 11, characterized in that The second cooling device includes a roller cooling nozzle that sprays cold air toward an opening provided in the driven roller.

13. The bonding device according to claim 1, characterized in that The surface of the belt is silicon or polytetrafluoroethylene resin.

14. The bonding device according to claim 1, characterized in that The base tape of the adhesive tape is made of synthetic resin.

15. The bonding device according to claim 1, characterized in that The adhesive applied to the adhesive tape is a polyurethane moisture-curing hot-melt adhesive.

16. The bonding device according to claim 1, characterized in that The sheet material is at least one of cloth for clothing, a plastic sheet for clothing, and a rubber sheet for clothing.

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