JP2020165016A - Bonding device - Google Patents

Abstract

To provide a bonding device capable of more simply and more securely inhibiting a part on which no bonding agent is applied from being generated on a sheet.SOLUTION: A bonding device comprises a nozzle 11, a conveyance mechanism, and a retention mechanism 800. The nozzle 11 discharges a bonding agent Z. The conveyance mechanism crimps and conveys an upper sheet 6 and a lower sheet 8 with the bonding agent Z discharged by the nozzle 11 and interposed therebetween. The retention mechanism 800 performs changeover between a retention state for retaining the lower sheet 8 in front of the nozzle 11 and a release state for releasing the lower sheet 8. When the bonding device 1 determines to stop bonding the upper sheet 6 and the lower sheet 8, the retention mechanism 800 changes over from the release state to the retention state. At the time of stopping bonding, the retention mechanism 800 in the retention state retains the lower sheet 8. Thereby, the bonding device can inhibit the lower sheet 8 below the nozzle 11 from moving in a front-back direction after stopping bonding operation.SELECTED DRAWING: Figure 19

Description

The present invention relates to an adhesive device.

The adhesive device disclosed in Patent Document 1 executes an adhesive operation in which an overlapping cloth sandwiched between adhesives discharged from a nozzle is sandwiched between a first roller and a belt and crimped while being conveyed. The cloths are the lower cloth and the upper cloth. When performing the bonding operation with a highly elastic cloth, resistance due to contact with the nozzle and belt and resistance due to the viscosity of the adhesive are added to the lower cloth, and the lower cloth is located at the lower position of the nozzle and at the first roller and belt. It extends between the pinching position and tension is applied. In the above-mentioned bonding device, when the user instructs to stop, the first roller and the belt rotate in the direction opposite to the time when the bonding operation is executed, and the cloth is transported to the upstream side in the transport direction. The transport distance and transport speed at this time can be set according to the thickness and properties of the cloth. As the cloth moves upstream in the transport direction, the gluing device releases the portion of the lower cloth that is just below the nozzle from tension. Therefore, the bonding device can prevent the stretched lower cloth from shrinking after the bonding operation is completed and the lower cloth located below the nozzle from moving. Therefore, the adhesive device can prevent the unapplied portion of the adhesive from forming on the cloth.

Japanese Unexamined Patent Publication No. 2013-67913

In the above-mentioned adhesive device, it is necessary for the user to set the transport distance and the transport speed when the cloth is fed upstream in the transport direction according to the thickness and properties of the cloth, which is troublesome. Further, even if the first roller and the belt rotate in opposite directions, slippage occurs between the lower cloth and the belt, and the cloth may not be able to be transported by the set transport distance. Therefore, unapplied parts of the adhesive may form on the cloth.

An object of the present invention is to provide an adhesive device capable of more easily and more reliably suppressing the occurrence of an unapplied portion of an adhesive on a sheet.

The adhesive device according to one aspect of the present invention comprises a nozzle for discharging an adhesive, a transport mechanism for crimping and transporting an upper sheet and a lower sheet with the adhesive discharged by the nozzle in between, and a transfer mechanism from the nozzle. In an adhesive device including an adhesive control unit that controls the discharge of the adhesive and the drive of the transfer mechanism, and crimps and adheres the upper sheet and the lower sheet to the downstream side in the transfer direction. Switching between a holding state in which the upper sheet or the lower sheet to which the adhesive discharged by the nozzle adheres is held on the upstream side of the nozzle in the transport direction and a release state in which the discharge sheet is released. The holding mechanism is provided with a possible holding mechanism, and the holding mechanism is in the released state when the upper sheet and the lower sheet are conveyed by the adhesion control unit, and stops the adhesion between the upper sheet and the lower sheet by the adhesion control unit. When the stop determination unit determines whether or not to stop the adhesion between the upper sheet and the lower sheet by the adhesion control unit, the stop determination unit switches the holding mechanism from the released state to the holding state. It is characterized by including a holding control unit.

According to the above configuration, when the adhesion between the upper sheet and the lower sheet is stopped, the adhesive device can hold the discharge sheet only by switching the holding mechanism from the released state to the holding state. By holding the discharge sheet, the adhesive device can more easily and more reliably suppress the movement of the portion of the discharge sheet at the position where the adhesive discharged by the nozzle adheres due to tension. Therefore, the adhesive device can more easily and more reliably suppress the unapplied portion of the adhesive from being generated on the discharge sheet.

In the adhesive device, the holding mechanism is provided on the upstream side of the nozzle in the transport direction, and is cut by moving to the holding state for holding the discharge sheet and the release state for releasing the discharge sheet. The holding member may be provided with an alternative holding member and a driving unit for moving the holding member, and the holding control unit may switch the holding member from the released state to the holding state by controlling the driving unit. The holding mechanism can hold the discharge sheet only by moving the holding member by driving the drive unit. Therefore, the adhesive device can simplify the holding mechanism.

In the adhesive device, the discharge sheet is the lower sheet, and includes an arrangement member provided on the upstream side of the nozzle in the transport direction and arranged between the upper sheet and the lower sheet, and the holding member is a holding member. In the holding state, the lower sheet may be sandwiched between the lower sheet and the arrangement member and held. By sandwiching the lower sheet between the holding member and the arranging member, the adhesive device can prevent the lower sheet from moving after the bonding operation is stopped. Therefore, the holding mechanism can easily hold the lower sheet by the holding member, and can prevent the unapplied portion of the adhesive from being generated on the lower sheet.

The adhesive device includes a time measuring unit for determining whether or not a predetermined holding time, which is a predetermined time, has elapsed since the holding control unit switched the holding mechanism from the released state to the holding state, and the predetermined holding time. When the timing determination unit determines that the time has passed, the adhesive stop unit may be provided to stop the discharge of the adhesive from the nozzle and the drive of the transfer mechanism. After the holding mechanism is switched to the holding state, the discharge sheet is conveyed until a predetermined holding time elapses. Therefore, since the lower sheet between the holding member and the conveying mechanism is in an stretched state, the bonding device can more reliably suppress the movement of the lower sheet after the bonding operation is stopped.

The adhesive device includes a time receiving unit that accepts the setting of the predetermined holding time, and when the time measuring determination unit determines that the predetermined holding time received by the time receiving unit has elapsed, the adhesive stop unit said. The discharge of the adhesive from the nozzle and the drive of the transfer mechanism may be stopped. Since the operator can freely set a predetermined time according to the materials of the lower sheet and the upper sheet, the adhesive device can easily control the suppression of the movement in the front-rear direction due to the tension of the lower sheet and the upper sheet.

The adhesive device may include a release control unit that switches the holding mechanism from the holding state to the releasing state when the upper sheet and the lower sheet are transferred by the adhesion control unit. Since the holding mechanism is released when the lower sheet and the upper sheet are started to be conveyed, the adhesive device can start the transfer from the state where the lower sheet is held. Since the adhesive device can start the transportation of the lower sheet with the movement of the lower sheet restricted, it is possible to surely suppress the unapplied portion of the adhesive from being generated on the lower sheet.

The adhesive device may include a release time receiving unit that accepts the setting of the release time, which is the time when the release control unit switches the holding mechanism from the holding state to the releasing state. Since the user can freely set the release time according to the elasticity of the sheet, the adhesive device can suppress the unapplied part of the adhesive from being generated on the lower sheet regardless of the material of the sheet, and the adhesive device can be used. Usability is improved.

In the adhesive device, the nozzle has a discharge port for discharging the adhesive, and the holding member may hold the lower sheet at a position aligned with the discharge port in the transport direction. Since the holding position of the lower sheet by the holding member is aligned with the discharge port in the transport direction, the adhesive device can suppress the lower sheet held by the holding member from tilting with respect to the transport direction.

The bonding device is provided with a rotating shaft extending in the transport direction, a roller provided on the rotating shaft on the downstream side of the holding member in the transport direction, and an upstream side of the holding member in the transport direction. A swinging portion that supports the rotating shaft and can swing around an axis extending in the transport direction at a position deviated from the rotating shaft, and a swinging drive portion that swings the swinging portion. The roller includes a motor that rotates the rotation shaft, and a detection unit that is fixed at a predetermined position and detects the presence or absence of one end of the lower sheet in a predetermined direction orthogonal to the vertical direction and the transport direction. By driving the swing drive unit, it is possible to swing between the holding position where the lower sheet is sandwiched between the arrangement member and the lower position below the holding position, and the adhesion control unit is used. When the lower sheet and the upper sheet are conveyed, the swing drive unit is controlled to move the roller from the lower position to the holding position, and the motor is driven according to the detection result of the detection unit. An adjustment control unit that reciprocates the roller is provided, and the holding member may be held above the rotation axis by sandwiching the lower sheet with the arrangement member in the holding state. Good. The holding member sandwiches the lower sheet between the holding member and the arranging member above the rotating shaft. Therefore, the holding member can prevent the lower sheet from tilting with respect to the transport direction while avoiding contact with the rotating shaft.

The perspective view of the adhesive device 1. The left side view of the adhesive device 1. The perspective view of the lower transport mechanism 50. An enlarged left side view (partial sectional view) of the nozzle 11, the lower transfer roller 64, and the upper transfer roller 12. The perspective view of the lower transport drive part 60, the lower holding mechanism 80, and the clearance adjustment part 77. An enlarged perspective view of the lower transfer roller 64 and the nozzle lower roller 65. Front view of the adhesive device 1. The perspective view of the lower holding mechanism 80 and the moving mechanism 81. The perspective view of the holding mechanism 800. Right side view of the tread plate 7. The electric block diagram of the adhesive device 1. Flow diagram of setting process. The flow chart of the heater temperature control process. The flow chart of the heater temperature control process following FIG. The graph which shows the temperature change of a heater 131 and an adhesive Z. Flow diagram of main processing. Flow diagram of bonding process. The flow chart of the bonding process following FIG. The left side view (partial sectional view) of the holding mechanism 800 which was switched to the holding state when the bonding operation was stopped. The left side view of the lower sheet 8 extending in the front-rear direction after the holding mechanism 800 is switched to the holding state. The left side view of the holding mechanism 800 which switches to the released state when the bonding operation is restarted. Flow chart of lower edge control processing. Flow chart of upper edge control processing.

An adhesive device 1 which is an embodiment of the present invention will be described. In the following description, the left and right, front and back, and top and bottom indicated by arrows in the figure are used. The adhesive device 1 adheres the upper sheet 6 (see FIG. 3) and the lower sheet 8 (see FIG. 3) with the adhesive Z (see FIG. 19). The lower sheet 8 and the upper sheet 6 are sheet-like adhesive objects, for example, a flexible cloth. The upper sheet 6 overlaps the lower sheet 8 from above. The adhesive device 1 adheres the lower specific end portion 8A, which is the right end portion of the lower sheet 8, and the upper specific end portion 6A, which is the left end portion of the upper sheet 6, via the adhesive Z. The adhesive device 1 conveys the upper sheet 6 and the lower sheet 8 in the rear direction.

As shown in FIGS. 1 and 2, the adhesive device 1 includes a pedestal portion 2, a pedestal portion 3, an arm portion 4, a head portion 5, and a transport mechanism 20. The pedestal portion 2 has a rectangular parallelepiped shape and is fixed to the workbench. The left surface of the pedestal portion 2 is a fixed surface, and the fixed surface fixes the support plate 51. The pedestal portion 3 is columnar and extends upward from the upper surface of the pedestal portion 2. The arm portion 4 extends to the left from the upper end portion of the pedestal portion 3. The arm portion 4 includes an operation portion 19 at the front portion. The head 5 projects to the left from the left end of the arm 4. The transport mechanism 20 includes a lower transport mechanism 50 and an upper transport mechanism 70. The lower transport mechanism 50 is provided on the support plate 51, and the upper transport mechanism 70 is provided on the head 5.

As shown in FIG. 3, the lower transport mechanism 50 is a so-called "cylindrical type" having an elongated tubular rear portion extending in the front-rear direction. For example, when creating a T-shirt, an operator attaches the sheet 200 to the lower transport mechanism 50 in a tubular shape with one end side of the sheet 200 as the upper sheet 6 and the other end side as the lower sheet 8. Since the rear portion of the lower transport mechanism 50 has an elongated tubular shape, the operator can handle the sheet 200 at the rear portion of the lower transport mechanism 50.

As shown in FIGS. 3 and 4, the lower transfer mechanism 50 includes a frame 55, a lower transfer drive unit 60, and the like. The frame 55 has a box shape that extends in the front-rear direction and the left-right direction and opens upward. The frame 55 accommodates the lower transport drive unit 60. The upper end opening of the frame 55 is closed by a support plate 57 extending in the horizontal direction. The support plate 57 supports the lower sheet 8 and the upper sheet 6. The rear end of the frame 55 is an opening 553 that opens rearward, and extends from the upper front to the lower rear. The rear end of the lower transport drive unit 60 projects rearward from the opening 553.

The right portion of the rear end of the support plate 57 is provided with a fixed shaft portion 316 projecting upward. The fixed shaft portion 316 supports the rotation support portion 314. The rotation support portion 314 is a plate member having a substantially rectangular shape in a plan view. The rotation support portion 314 can rotate about the fixed shaft portion 316 between the operating position (see FIG. 3) and the retracted position. The rotation support portion 314 in the operating position is located directly below the upper holding roller 32 described later and directly above the lower holding roller 76 described later (see FIG. 4). The retracted position is a rotation position rotated by approximately 90 ° counterclockwise in a plan view from the operating position. The upper surface 315 of the rotation support portion 314 is provided with an upper reflector, and the lower surface 317 of the rotation support portion 314 is provided with a lower reflector.

As shown in FIGS. 5 and 6, the lower transfer drive unit 60 includes a support frame 61, a lower transfer motor 63, a lower transfer roller 64, a nozzle lower roller 65, a transfer belt 67 (see FIG. 9), and the like. The support frame 61 extends in the front-rear direction. The cross section of the support frame 61 viewed along the front-rear direction is a substantially U-shape that opens upward. The nozzle plate 59 and the tip plate 56 are fixed to the upper part of the rear end of the support frame 61. The nozzle plate 59 extends in the front-rear direction, and the tip plate 56 extends rearward and downward from the rear end of the nozzle plate 59. The nozzle plate 59 includes an opening 591 that opens in the vertical direction. The opening 591 is located directly below the rotation support portion 314 when it is in the operating position. A roller opening 592 is provided at the connecting portion between the nozzle plate 59 and the tip plate 56. The roller opening 592 penetrates each of the nozzle plate 59 and the tip plate 56 in the thickness direction.

The lower transfer motor 63 is fixed to the front right surface of the support frame 61. The drive shaft of the lower transfer motor 63 projects from the right side of the support frame 61 to the left and enters the inside of the support frame 61. The lower transfer roller 64 is fixed to a rotating shaft 641 rotatably supported at the rear end of the support frame 61. The lower transfer roller 64 projects outward from the roller opening 592. The lower transfer roller 64 supports the lower sheet 8 and the upper sheet 6 which are overlapped with the adhesive Z in between. The roller under the nozzle 65 is fixed to the rotating shaft 651 rotatably supported by the support frame 61 in front of the rotating shaft 641. The roller under the nozzle 65 projects upward from the opening 591. The transport belt 67 bridges the drive shaft and the rotary shafts 641 and 651 of the lower transport motor 63 inside the support frame 61. The transfer belt 67 transmits the driving force of the lower transfer motor 63 to the lower transfer roller 64 and the nozzle lower roller 65. Therefore, when the lower transfer motor 63 is driven, the lower transfer roller 64 and the nozzle lower roller 65 rotate with the left-right direction as the axial direction.

The gap adjusting unit 77 will be described with reference to FIG. The gap adjusting unit 77 includes a gap adjusting motor 68, a cam plate 69, a swing shaft 62, and a spring. The clearance adjusting motor 68 is provided above the fixing plate 512 (see FIG. 1) extending to the left from the lower end of the support plate 51 and below the lower transport motor 63. The drive shaft 681 of the clearance adjusting motor 68 projects to the left. A cam plate 69 having a substantially circular shape is fixed to the tip of the drive shaft 681 when viewed from the left side. The cam plate 69 is arranged inside the cam hole 631 provided in the lower right portion of the support frame 61, and the center of the cam plate 69 is eccentric from the drive shaft 681 of the clearance adjusting motor 68.

The swing shaft 62 extends in the left-right direction and is fixed by a frame 55 (see FIG. 3). The swing shaft 62 rotatably supports a substantially central portion of the support frame 61 in the front-rear direction. The spring urges the support frame 61 in a direction in which the rear end portion of the support frame 61 swings downward. Therefore, the cam plate 69 comes into contact with the lower end of the cam hole 631. When the cam plate 69 is rotated by driving the clearance adjusting motor 68, the support frame 61 swings around the swing shaft 62 according to the rotation angle of the cam plate 69. The gap adjusting motor 68 moves up and down the rear end of the support frame 61 (arrow Q) to open a gap between the nozzle 11 discharge port 13 (see FIG. 7) and the nozzle plate 59 (hereinafter referred to as a nozzle gap). change. The lower transfer roller 64 and the lower nozzle roller 65 swing in the vertical direction as the nozzle gap is changed. In FIG. 4, the lower transfer roller 64 and the nozzle lower roller 65 when the rear end of the support frame 61 is above are shown by solid lines, and the lower transfer roller 64 and the nozzle lower when the rear end of the support frame 61 is below are shown by solid lines. The roller 65 is illustrated by a chain double-dashed line.

The lower holding mechanism 80 will be described with reference to FIGS. 5 and 8. The lower holding mechanism 80 is housed in the frame 55 (see FIG. 3). The lower sandwiching mechanism 80 can change the position of the lower sheet 8 in the left-right direction while sandwiching the lower sheet 8 with the lower surface 317 (see FIG. 4) of the rotation support portion 314. The lower holding mechanism 80 includes a fixed base portion 71, a lower holding motor 72, a connecting shaft 910, a support frame portion 73, a belt 74, a shaft portion 75, a lower holding roller 76, a moving mechanism 81, and the like.

The fixing base portion 71 has a substantially rectangular parallelepiped shape and is fixed to the inner portion of the frame 55 (see FIG. 3). The fixed base portion 71 has a circular through hole 711 penetrating in the front-rear direction, and holds the rotating portion 717 rotatably inside the through hole 711. The center of rotation of the rotating portion 717 is an axis J extending in the front-rear direction.

The lower holding motor 72 is fixed to the front surface of the rotating portion 717. The lower holding motor 72 rotates integrally with the rotating portion 717 with respect to the fixed base portion 71. The fixed base portion 71 rotatably supports the lower holding motor 72 together with the rotating portion 717. The lower pinch motor 72 is provided with a pin 940 at the rear of the upper surface. Pin 940 projects upward. The lower holding motor 72 fixes one end of the spring 946 to the rear part of the left surface. The spring 946 extends downward and the other ends are fixed to the inner portion of the frame 55.

The drive shaft of the lower sandwiching motor 72 is inserted into a through hole provided in the center of the rotating portion 717 and connected to the connecting shaft 910. The connecting shaft 910 projects rearward from the rear surface of the rotating portion 717. The support frame portion 73 is arranged behind the fixing base portion 71 and fixed to the rear surface of the rotating portion 717. Therefore, the support frame portion 73 rotates integrally with the rotating portion 717. The spring 946 constantly urges the lower holding motor 72 in the counterclockwise direction when viewed from the front. The support frame portion 73 accommodates the rear end portion of the connecting shaft 910 inside. The support frame portion 73 rotatably supports the rear end portion of the shaft portion 75. The belt 74 is hung on the connecting shaft 910 and the shaft portion 75. The shaft portion 75 is arranged inside the support frame 61, and extends in the front-rear direction at a position shifted to the upper right with respect to the axis J.

The lower holding roller 76 is fixed to the rear end portion of the shaft portion 75, and can rotate together with the shaft portion 75 in the front-rear direction as an axial direction. The lower holding roller 76 is arranged below the upper holding roller 32. When the lower pinch motor 72 is driven, the shaft portion 75 rotates via the drive shaft, the connecting shaft 910, and the belt 74 of the lower pinch motor 72. Therefore, the lower holding roller 76 rotates around the shaft portion 75 together with the shaft portion 75.

The moving mechanism 81 includes a plate portion 930, an air cylinder 931 and a plate member 933. The plate portion 930 is provided on the upper surface of the fixed base portion 71 and extends in the left-right direction. The air cylinder 931 is provided on the left front portion of the plate portion 930. The output shaft 932 of the air cylinder 931 extends to the right. The plate member 933 is an L-shaped member in front view, and is fixed to the right end portion of the output shaft 932. The right end of the plate member 933 comes into contact with the pin 940 of the lower holding motor 72.

When the output shaft 932 moves to the right, the plate member 933 moves the pin 940 to the right. As the pin 940 moves, the lower pinching motor 72 swings clockwise with the support frame portion 73 around the axis J against the urging force of the spring 946. At this time, the shaft portion 75 moves downward, and the lower holding roller 76 swings around the axis J to the lower separation position. The lower separation position is the swing position of the lower holding roller 76 in which the upper end of the lower holding roller 76 is separated downward from the lower surface 317 of the rotation support portion 314. In FIG. 4, the lower holding roller 76 at the lower separated position is illustrated by the alternate long and short dash line.

When the air cylinder 931 is driven and the output shaft 932 moves to the left and separates from the pin 940, the lower holding motor 72 receives the urging force of the spring 946 to support the support frame portion in the counterclockwise direction in the front view around the axis J. It swings with 73. At this time, the lower holding roller 76 swings around the axis J to the lower holding position. The lower holding position is the swinging position of the lower holding roller 76 that sandwiches the lower sheet 8 with the lower surface 317 of the rotation support portion 314. In FIG. 4, the lower holding roller 76 in the lower holding position is illustrated by a solid line.

The lower detection unit 78 will be described with reference to FIG. The lower detection unit 78 is fixed at a predetermined position on the support frame 61, and is located below the opening 591 (see FIG. 6) of the nozzle plate 59. The lower detection unit 78 is an optical detector in which a lower light emitting unit and a lower light receiving unit are integrated. The lower light emitting part and the lower light receiving part are at the same height position as each other. The lower light emitting portion emits light toward the opening 591 of the nozzle plate 59. The light that has passed through the opening 591 is reflected downward by the lower reflector when the rotation support portion 314 is in the operating position. The reflected light reflected by the lower reflector passes through the opening 591. The lower light receiving portion can receive light that has passed through the opening 591.

For example, when the lower specific end 8A of the lower sheet 8 is above the opening 591 of the nozzle plate 59, the lower specific end 8A blocks the light emitted by the lower light emitting portion. Therefore, the lower light receiving unit does not receive the light emitted by the lower light emitting unit. When the lower specific end portion 8A is not above the opening 591, the light emitted by the lower light emitting portion is reflected by the lower reflector. The lower light receiving portion receives the reflected light through the opening 591. Therefore, the lower detection unit 78 can detect whether or not the lower specific end portion 8A is located at the lower detection position, which is a predetermined position in the left-right direction. The lower detection position is a left-right position on the right side of the position where the lower holding roller 76 sandwiches the lower sheet 8 with the lower surface 317, and a front-rear position on the front side of the nozzle 11 described later.

As shown in FIG. 2, the upper transfer mechanism 70 includes an upper transfer arm 16, an upper transfer roller 12, an upper transfer motor 112, a transmission mechanism, an air cylinder 122 (see FIG. 11), and a link mechanism. The upper transport arm 16 extends from the rear to the front below the head 5, and further extends forward and downward. The tip portion 16A of the upper transport arm 16 rotatably supports the upper transport roller 12. The upper transfer roller 12 can rotate about the left-right direction as an axial direction. The upper transfer motor 112 is provided on the upper transfer arm 16. The upper transfer motor 112 is connected to the upper transfer roller 12 via a transmission mechanism provided inside the upper transfer arm 16. The transmission mechanism is, for example, a pulley or a belt. The upper transfer roller 12 is rotated with the left-right direction as an axial direction by the power of the upper transfer motor 112.

The air cylinder 122 is provided on the head 5 in a posture along the front-rear direction. The air cylinder 122 is connected to the upper transport arm 16 via a link mechanism. The upper transport arm 16 swings in the vertical direction by driving the air cylinder 122. When the air cylinder 122 swings the upper transport arm 16, the upper transport roller 12 swings between the transport position (see FIG. 4) and the upper position (see FIG. 2). The transport position is the swing position of the upper transport roller 12 that sandwiches the lower sheet 8 and the upper sheet 6 with the lower transport roller 64. The positions where the upper transfer roller 12 and the lower transfer roller 64 sandwich the lower sheet 8 and the upper sheet 6 correspond to the points P in FIGS. 4 and 19 to 21. The upper position is the swinging position of the upper transport roller 12 separated upward from the transport position.

The upper holding mechanism 30 will be described with reference to FIG. 7. The upper holding mechanism 30 changes the position of the upper seat 6 in the left-right direction. The upper holding mechanism 30 is provided below the arm portion 4. The upper holding mechanism 30 includes an upper supporting portion 34, an upper arm 31, a rotating shaft 33, an upper holding roller 32, an upper holding motor 38, a transmission mechanism, a spring 37, an air cylinder 39, and the like. The upper support portion 34 has a box shape fixed to the right side of the lower surface of the arm portion 4. The upper support portion 34 includes a circular through hole (not shown) that opens in the front-rear direction. The through hole rotatably supports the upper rotating portion. The upper rotating portion projects forward and backward from the through hole of the upper support portion 34. The rotation axis of the upper rotation portion is the axis W extending in the front-rear direction. The upper arm 31 has an arm shape and a tubular shape extending downward to the left from the upper rotating portion. In other words, the upper arm 31 extends in a direction orthogonal to the transport direction. The upper arm 31 swings as the upper rotating portion rotates.

The upper arm 31 has a tip portion 31A that rotatably supports a rotation shaft 33 extending in the front-rear direction. The upper holding roller 32 is fixed to the rotating shaft 33. That is, the upper holding roller 32 can rotate with the front-rear direction as the axial direction. The upper holding roller 32 is arranged above the lower holding roller 76 and is on the front side of the upper conveying roller 12. The upper holding motor 38 is a motor that is fixed to the rear portion of the upper rotating portion and can rotate in the forward and reverse directions, and can rotate together with the upper rotating portion. The drive shaft of the upper pinching motor 38 protrudes forward and enters the inside of the upper rotating portion. The transmission mechanism includes a shaft member extending in the front-rear direction inside the upper rotating portion, a pulley provided at the front end of the shaft member, a belt, and the like. The transmission mechanism transmits the driving force of the upper holding motor 38 to the rotating shaft 33. Therefore, when the upper holding motor 38 is driven, the upper holding roller 32 is rotated in the forward and reverse directions.

As the upper rotating portion rotates, the upper arm 31 swings around the axis W. At this time, the upper holding roller 32 swings between the upper holding position (see FIG. 4) and the upper separation position (see FIG. 7). The upper holding position is the swinging position of the upper holding roller 32 in which the lower end of the upper holding roller 32 sandwiches the upper sheet 6 with the upper surface 315 of the rotation support portion 314. The upper separation position is the swing position of the upper holding roller 32 separated upward from the upper holding position.

The spring 37 urges the upper arm 31 clockwise in the front view around the axis W via another member. Therefore, the spring 37 urges the upper arm 31 in the rotation direction from the upper holding position to the upper separation position. Due to the weight of the upper arm 31 and the upper holding roller 32 and the like, the tip portion 31A of the upper arm 31 faces downward. The spring 37 urges the upper arm 31 in the direction opposite to the urging. Therefore, the spring 37 prevents the upper holding roller 32 in the upper holding position from excessively exerting a downward force. The air cylinder 39 is fixed to the upper support portion 34. The air cylinder 39 rotates the upper pinching motor 38 about the axis W via a fixing member 35 fixed to the right surface of the upper pinching motor 38. Therefore, due to the drive of the air cylinder 39, the upper holding roller 32 swings from the upper holding position to the upper separation position.

The adhesive device 1 includes an upper detection unit 85 below the arm portion 4. The upper detection unit 85 is an optical detector in which an upper light emitting unit and an upper light receiving unit are integrated. The upper detection unit 85 is provided at a front-rear position between the upper transport roller 12 and the upper holding roller 32. The upper light emitting part and the upper light receiving part are at the same height position as each other. The upper light emitting portion emits light from above toward the upper reflector provided on the upper surface 315 of the rotation support portion 314. The light emitted by the upper light emitting part is reflected by the upper reflector. The upper light receiving unit receives the reflected light reflected by the upper reflector.

For example, when the upper specific end portion 6A of the upper sheet 6 is above the upper reflector, the upper specific end portion 6A blocks the light emitted by the upper light emitting portion. Therefore, the upper light receiving unit does not receive the light emitted by the upper light emitting unit. When the upper specific end portion 6A is not above the upper reflector, the light emitted by the upper light emitting portion is reflected by the upper reflector. The upper light receiving part receives the reflected light. Therefore, the upper detection unit 85 can detect whether or not the upper specific end portion 6A is located at the upper detection position, which is a predetermined position in the left-right direction of the upper surface 315 of the rotation support portion 314. The upper detection position is a left-right position on the left side of the position where the upper holding roller 32 sandwiches the upper sheet 6 with the upper surface 315 of the rotation support portion 314, and a front-rear position on the front side of the nozzle 11. ..

The nozzle swing mechanism 22 provided on the head portion 5 will be described with reference to FIG. 7. The nozzle swing mechanism 22 includes a nozzle motor 113, a support shaft 9, a nozzle lever 18, a nozzle 11, and the like. The nozzle motor 113 is fixed inside the head 5. The drive shaft of the nozzle motor 113 projects forward and fixes the motor gear 15. The support shaft 9 extends in the left-right direction above the drive shaft of the nozzle motor 113. The central portion of the support shaft 9 fixes the worm wheel 25 that meshes with the upper portion of the motor gear 15. The nozzle lever 18 is fixed to the left end of the support shaft 9. The nozzle lever 18 extends downward from the support shaft 9. The nozzle 11 is connected to the lower end of the nozzle lever 18 and is located on the front side with respect to the lower transfer roller 64 and the upper transfer roller 12. The nozzle 11 includes a vertically extending portion extending downward from the nozzle lever 18 and a horizontally extending portion extending to the right from the lower end of the vertically extending portion. The horizontally extended portion has a discharge port 13 on the lower surface. The discharge port 13 is a plurality of circular holes arranged at substantially equal intervals in the left-right direction. The upper sheet 6 is arranged on the upper part of the horizontally extended portion. Therefore, the nozzle 11 can discharge the adhesive Z between the lower sheet 8 and the upper sheet 6 from the discharge port 13.

When the driving force of the nozzle motor 113 is transmitted to the motor gear 15 and the worm wheel 25, the nozzle lever 18 rotates about the support shaft 9. At this time, the nozzle 11 is displaced between the proximity position (see FIG. 2) and the retreat position. When the nozzle 11 is in a close position, the discharge port 13 is directly above the roller under the nozzle 65 and faces downward. The nozzle 11 in the retreat position is located in front of the upper holding roller 32. When the nozzle 11 is in the retreat position, the discharge port 13 faces forward and downward.

The nozzle 11 has a flow path 11A inside, and the nozzle lever 18 has a flow path 21 inside. The flow paths 11A and 21 are flow paths of the adhesive Z communicating with each other. The flow path 11A communicates with the discharge port 13. The nozzle lever 18 includes a nozzle heater 132 (see FIG. 11) inside. The nozzle heater 132 heats the adhesive Z flowing through the flow path 21.

As shown in FIG. 1, the head 5 includes a mounting portion 41. The mounting portion 41 is provided at substantially the center of the head 5, and includes a cover 41A, an accommodating portion, a lid 41B, and a heater 131 (see FIG. 11). The cover 41A has a substantially rectangular parallelepiped box shape and extends upward from the upper surface of the head 5. The cover 41A opens in the vertical direction. The accommodating portion is provided inside the cover 41A. The housing portion has a substantially rectangular parallelepiped box shape and extends from the inside of the head 5 to the upper end of the cover 41A. The containment section opens upward. The accommodating portion internally accommodates a cartridge (not shown) in a detachable manner. The lid 41B is detachably provided on the upper side of the accommodating portion to open and close the upper opening of the accommodating portion. The cartridge contains the heat-meltable adhesive Z. The adhesive Z liquefies when it reaches the melting temperature and solidifies at a temperature lower than the melting temperature. The heater 131 is provided in the accommodating portion. That is, the heater 131 is provided in the supply path for supplying the adhesive Z to the nozzle 11. The heater 131 heats the cartridge housed in the housing section. The adhesive Z is melted and liquefied by heating the heater 131. By removing the lid 41B, the operator can replace the cartridge accommodated in the accommodating portion with another cartridge.

The arm portion 4 further includes a supply mechanism. The supply mechanism includes a pump motor 114 (see FIG. 11) and a gear pump. The pump motor 114 is arranged inside the arm portion 4 and is located on the right front side of the mounting portion 41. The drive shaft of the pump motor 114 projects to the left and is connected to the gear pump via a gear. The gear pump is connected to the support shaft 9. The gear pump sucks the adhesive Z from the cartridge by driving the pump motor 114. The gear pump supplies the sucked adhesive Z to the flow path 11A of the nozzle 11 via the flow path 21 (see FIG. 7) of the nozzle lever 18. Therefore, the nozzle 11 discharges the adhesive Z from the discharge port 13.

The holding mechanism 800 will be described with reference to FIGS. 4 and 9. The holding mechanism 800 includes a support base 802, a rotating shaft 804, a rotating member 806, an air cylinder 809, and a holding member 810. The support base 802 extends upward from the inner bottom of the frame 55 (see FIG. 1) and enters the inside of the support frame 61. The rotation shaft 804 is a shaft extending in the left-right direction, and is supported by the upper end portion of the support base 802. The rotating member 806 is rotatably provided at both left and right ends of the rotating shaft 804. The rotating member 806 includes a first arm 806A extending downward from the connecting portion of the rotating shaft 804 and a second arm 806B extending rearward from the connecting portion with the rotating shaft 804. The second arm 806B is located below the shaft portion 75 of the lower holding mechanism 80. The air cylinder 809 is fixed to the inner portion of the frame 55 (see FIG. 1) in front of the first arm 806A. The air cylinder 809 includes a drive shaft 809A extending in the front-rear direction, and the rear end of the drive shaft 809A is connected to the first arm 806A.

The holding member 810 is fixed to the rear end of the second arm 806B and is located below the rotation support portion 314. The holding member 810 is provided on the front side of the lower holding roller 76 and on the rear side of the support frame portion 73 (see FIG. 8). The holding member 810 is aligned with at least a part of the discharge port 13 (see FIG. 7) of the nozzle 11 in the front-rear direction. The holding member 810 has a substantially U-shape that opens downward when viewed from the front, and the opening portion is an insertion hole 810A through which the shaft portion 75 is inserted. When the lower holding roller 76 of the lower holding mechanism 80 swings between the lower holding position and the lower separating position, the shaft portion 75 swings up and down inside the insertion hole 810A and is separated from the holding member 810. To maintain.

As the drive shaft 809A moves in the front-rear direction with the driving of the air cylinder 809, the rotating member 806 rotates with respect to the rotating shaft 804. Therefore, the holding member 810 is switched between the holding state (see FIG. 19) and the released state (see FIG. 4). The holding member 810 in the holding state sandwiches and holds the lower sheet 8 with the lower surface 317 of the rotation support portion 314. The holding member 810 in the holding state projects upward from the notch hole 57A (see FIG. 3) formed at the rear end of the support plate 57. The position where the holding member 810 holds the lower sheet 8 between the rotating support portion 314 and the lower seat 8 is above the shaft portion 75 of the lower holding mechanism 80, and is substantially the same height as the discharge port 13. The holding member 810 in the released state is located below the holding member 810 and releases the lower sheet 8 between the holding member 810 and the lower surface 317. The upper end of the holding member 810 at this time is at substantially the same vertical position as the upper surface of the support plate 57. Hereinafter, the holding mechanism 800 when the holding member 810 is in the holding state may be referred to as "holding mechanism 800 in the holding state", and the holding mechanism 800 when the holding member 810 is in the released state is referred to as "holding mechanism in the released state". It may be called "800".

The tread plate 7 provided on the floor surface will be described with reference to FIG. The tread plate 7 can be rotated around the support shaft 97 by being operated by the operator's feet. At this time, the tread plate 7 rotates between the stepping position and the treading position. The upper surface of the tread plate 7 when in the stepping position is indicated by the alternate long and short dash line Pb. The upper surface of the tread plate 7 when in the tread position is indicated by the alternate long and short dash line Pn. The tread plate 7 shown by the solid line in FIG. 10 is in a neutral position between the stepping position and the stepping position. The tread plate 7 maintains a neutral position when there is no operation by the operator. One end of the tread plate 7 is connected to the tip of the rotary lever 92 via a connecting rod 96.

The support shaft 91 rotatably supports the base end portion of the rotary lever 92. The support shaft 91 is fixed to the box 88 below the workbench. The spring 93 constantly urges the rotary lever 92 counterclockwise when viewed from the right side. When the rotary lever 92 comes into contact with the stopper 94, its rotation in the counterclockwise direction is restricted when viewed from the right side. When the operator steps back on the tread plate 7 in the neutral position toward the tread position, the stopper 94 moves upward. When the operator steps on the tread plate 7 in the neutral position toward the stepping position, the spring 93 extends. The base end portion of the rotary lever 92 is connected to the drive shaft of the potentiometer 95. The drive shaft of the potentiometer 95 rotates in synchronization with the rotation lever 92. As the tread plate 7 rotates, the rotation lever 92 rotates via the connecting rod 96. The drive shaft of the potentiometer 95 rotates as the rotation lever 92 rotates. The potentiometer 95 outputs a detected voltage value according to the rotation angle of the drive shaft to the CPU 101 (see FIG. 11) described later.

The electrical configuration of the adhesive device 1 will be described with reference to FIG. The bonding device 1 includes a control device 100. The control device 100 includes a CPU 101, a ROM 102, a RAM 103, a storage device 104, a potentiometer 95, and drive circuits 105 and 106. The CPU 101 controls the operation of the adhesive device 1 in an integrated manner. The CPU 101 includes ROM 102, RAM 103, storage device 104, operation unit 19, potentiometer 95, lower detection unit 78, upper detection unit 85, drive circuit 105, 106, heater 131, nozzle heater 132, temperature sensor 133, nozzle temperature sensor 134, timer 135. , Connects to the display unit 260. The ROM 102 stores a program that executes various processes. The RAM 103 temporarily stores various types of information. The storage device 104 is non-volatile and stores various set values and the like. The storage device 104 stores a temperature flag and an abnormality notification flag, which will be described later.

The operation unit 19 detects the input of various information and outputs the detection result to the CPU 101. The potentiometer 95 is connected to the tread plate 7. The potentiometer 95 outputs a detected voltage value according to the rotation position of the tread plate 7 to the CPU 101. Therefore, the CPU 101 can determine whether or not the tread plate 7 is in the neutral position, whether or not the tread plate 7 is stepped on, and whether or not the tread plate 7 is stepped back. The lower detection unit 78 and the upper detection unit 85 output the detection result to the CPU 101.

By transmitting a control signal to the drive circuit 105, the CPU 101 drives each of the lower transfer motor 63, the upper transfer motor 112, the nozzle motor 113, the pump motor 114, the gap adjustment motor 68, the lower pinch motor 72, and the upper pinch motor 38. Control. The CPU 101 drives and controls each of the air cylinders 39, 122, 809, and 931 by transmitting a control signal to the drive circuit 106. The CPU 101 drives the heater 131 and the nozzle heater 132. The heater 131 heats the adhesive Z in the cartridge. The nozzle heater 132 heats the adhesive Z flowing through the flow path 21 inside the nozzle lever 18 toward the discharge port 13. The adhesive Z is liquefied by heating the heater 131 and the nozzle heater 132. The temperature sensor 133 detects the temperature of the heater 131. The nozzle temperature sensor 134 detects the temperature of the nozzle heater 132. The timer 135 outputs the timing result to the CPU 101. The display unit 260 is provided on a workbench, for example. The display unit 260 displays various information in response to the control signal from the CPU 101.

An outline of the bonding operation of the bonding device 1 will be described with reference to FIGS. 4 and 19 to 21. At the start of the bonding operation, the bonding device 1 is in the initial state. When the bonding device 1 is in the initial state, the nozzle 11 is in the close position, the upper transfer roller 12 is in the transfer position, the rotation support portion 314 is in the operating position, and the lower holding roller 76 is in the lower separation position. The upper holding roller 32 is in the upper separated position (see FIG. 7), the rear end of the support frame 61 is raised upward, and the holding mechanism 800 is in the released state.

When the operator turns on the power of the adhesive device 1, the adhesive device 1 heats and liquefies the adhesive Z by the heater 131 and the nozzle heater 132. The heater 131 rises to a start-up temperature higher than a predetermined temperature, maintains the start-up temperature for a predetermined time (hereinafter referred to as a predetermined time) from the power-on of the adhesive device 1, and then falls to a predetermined temperature. The predetermined temperature is the temperature of the adhesive Z suitable for discharging the adhesive Z to the lower sheet 8, and is higher than the melting temperature of the adhesive Z. The predetermined temperature is included in the temperature range of the adhesive Z when the adhesive device 1 discharges the lower sheet 8 and the upper sheet 6 from the discharge port 13.

When the operator operates the tread plate 7, the upper transfer roller 12 swings to the upper position (see FIG. 2), and the lower holding roller 76 swings to the lower holding position and rotates with the drive of the lower holding motor 72. Start moving. The lower sheet 8 is arranged on the support plate 57 and the nozzle plate 59, and is inserted between the lower holding roller 76 and the rotation support portion 314. After the rear end of the support frame 61 moves upward, the upper sheet 6 is arranged on the support plate 57 and the rotation support portion 314. The upper pinching roller 32 swings to the upper pinching position and starts rotating with the drive of the upper pinching motor 38. After the rotation of the upper holding roller 32 is started, the upper transport roller 12 swings to the transport position.

The bonding device 1 starts the bonding operation. Specifically, the lower transfer motor 63 and the upper transfer motor 112 start driving, and the transfer mechanism 20 moves the lower sheet 8 and the upper sheet 6 to the rear side in cooperation with the lower transfer roller 64 and the upper transfer roller 12. Transport. At the same time, the pump motor 114 is driven, and the nozzle 11 discharges the adhesive Z from the discharge port 13. The transport mechanism 20 crimps the upper sheet 6 and the lower sheet 8 with the adhesive Z discharged by the nozzle 11 in between. Therefore, the adhesive device 1 adheres the upper sheet 6 and the lower sheet 8. At this time, the rotation direction of the lower holding roller 76 is switched according to the detection result of the lower detection unit 78, and the rotation direction of the upper holding roller 32 is switched according to the detection result of the upper detection unit 85. Therefore, the adhesive device 1 can keep the lengths of the lower specific end portion 8A and the upper specific end portion 6A, which are vertically overlapped with each other, in a certain range in the left-right direction.

When the bonding operation is stopped, the bonding device 1 switches the holding mechanism 800 from the released state to the holding state. When a predetermined time (hereinafter referred to as a predetermined holding time) elapses after the holding mechanism 800 is switched to the holding state, the adhesive device 1 stops driving the lower transfer motor 63, the upper transfer motor 112, and the pump motor 114. When the transport mechanism 20 is stopped, the lower sheet 8 tends to be in a state of being extended in the front-rear direction between the holding member 810 and the transport position (see FIG. 20). When the bonding operation is resumed, the bonding device 1 drives the lower transfer motor 63, the upper transfer motor 112, and the pump motor 114. At the start of transporting the upper sheet 6 and the lower sheet 8 by the transport mechanism 20, the holding member 810 switches from the holding state to the released state at a predetermined time (hereinafter referred to as a release time) (see FIG. 21).

The setting process will be described with reference to FIG. The setting process is a process of setting variables related to the heater temperature control process (see FIG. 13) and the main process (see FIG. 16), which will be described later. The variables are start-up temperature, predetermined time, predetermined temperature, predetermined holding time, and release time. The initial values of the above variables are stored in the storage device 104.

The CPU 101 determines whether or not to change the variable (S1). When the operator inputs information indicating that the variable is not changed to the operation unit 19 (S1: NO), the CPU 101 ends the setting process. At this time, the initial value of the variable is applied in the heater temperature control process and the main process.

When the operator inputs information indicating that the variable is changed to the operation unit 19 (S1: YES), the CPU 101 accepts the start-up temperature setting (S2). The operator inputs a desired start-up temperature to the operation unit 19, and the CPU 101 updates and stores the input temperature in the storage device 104 as the start-up temperature.

The CPU 101 accepts the setting of a predetermined time (S3). The operator inputs a desired predetermined time to the operation unit 19, and the CPU 101 updates and stores the input predetermined time in the storage device 104. The CPU 101 accepts a predetermined temperature setting (S4). The operator inputs a desired predetermined temperature to the operation unit 19, and the CPU 101 updates and stores the input predetermined temperature in the storage device 104. The CPU 101 accepts the setting of the predetermined holding time (S5). The operator inputs a desired predetermined holding time to the operation unit 19, and the CPU 101 updates and stores the input predetermined holding time in the storage device 104. The CPU 101 accepts the setting of the release time (S6). The operator inputs a desired release time to the operation unit 19. The desired release time is, for example, the time elapsed since the bonding device 1 resumes the bonding operation. The CPU 101 updates and stores the input release time in the storage device 104. The CPU 101 ends the setting process.

The heater temperature control process will be described with reference to FIGS. 13 to 15. The heater temperature control process is a process of controlling the temperature of the heater 131 from the start of the adhesive device 1 to heat the adhesive Z. The activation of this example includes the time when the power of the adhesive device 1 is turned on and the time when the cartridge mounted on the mounting portion 41 is replaced. At the start of the heater temperature control process, both the temperature flag and the abnormality notification flag stored in the storage device 104 are 0. The nozzle heater 132 is controlled to reach a predetermined temperature in parallel with the execution of the heater temperature control process, and the adhesive Z flowing inside the flow paths 11A and 21 (see FIG. 7) is liquefied.

The CPU 101 determines whether or not the detected temperature, which is the temperature detected by the temperature sensor 133, is equal to or higher than the determination temperature (S11). The determination temperature is a temperature lower than a predetermined temperature and higher than the melting temperature. For example, when the adhesive Z inside the cartridge is solidified, the detection temperature is lower than the determination temperature (S11: NO). The CPU 101 updates the storage temperature flag to 0 in the storage device 104 and stores it (S13).

The CPU 101 controls the timer 135 to start timing (S15). The CPU 101 controls the heater 131 while acquiring the detected temperature at a predetermined cycle so that the detected temperature becomes the startup temperature (S17). The CPU 101 determines whether or not the detected temperature is equal to or higher than the startup temperature (S19). When the detection temperature is lower than the startup temperature (S19: NO), the CPU 101 shifts the process to S17. When the CPU 101 repeats S17 and S19, the temperature of the heater 131 reaches the startup temperature. The time is time t1 in FIG. 15, and the temperature of the adhesive Z is lower than the starting temperature. The CPU 101 determines that the detected temperature is equal to or higher than the startup temperature (S19: YES).

The CPU 101 determines whether or not a predetermined time has elapsed from the start of timekeeping based on the timekeeping result of the timer 135 (S21). When it is determined that the predetermined time has not elapsed (S21: NO), the CPU 101 shifts the process to S17. When the CPU 101 repeats S17 to S21, the heater 131 maintains the starting temperature, and a predetermined time elapses from the start of timekeeping (S21: YES). In FIG. 15, the time when the predetermined time elapses is time t2, and the temperature of the adhesive Z is the start-up temperature. The CPU 101 updates the temperature flag stored in the storage device 104 to 1 (S23). When the temperature flag is 1, it indicates that the nozzle 11 can discharge the adhesive Z. The CPU 101 ends the timing of the timer 135 (S25).

As shown in FIG. 14, the CPU 101 updates the memory abnormality notification flag in the storage device 104 to 0 (S31). The CPU 101 controls the heater 131 so that the detection temperature becomes a predetermined temperature (S33). The CPU 101 determines whether or not the detection temperature falls within a predetermined range (S35). The predetermined range is a range of ± α ° C. with respect to the predetermined temperature received in S3, and is a range including the predetermined temperature. Immediately after the detection temperature starts to gradually decrease from the start-up temperature, the detection temperature is higher than the predetermined range (S35: NO).

The CPU 101 determines whether or not the cartridge mounted on the mounting unit 41 is replaced (S39). When the operator inputs the cartridge replacement information, which is the information indicating that the cartridge replacement is executed, to the operation unit 19 (S39: YES), the CPU 101 controls the heater 131 so that the detected temperature becomes a predetermined temperature (S45). ). The CPU 101 determines whether or not the replacement of the cartridge is completed (S46). The CPU 101 shifts the process to S45 and repeats S45 and S46 until the operator inputs the replacement completion information indicating that the cartridge has been replaced (S46: NO). At this time, the operator replaces the cartridge mounted on the mounting unit 41 with a new cartridge. The operator inputs the exchange completion information to the operation unit 19 (S46: YES), and the CPU 101 shifts the process to S13 (see FIG. 13). After the execution of S13 and S15, the CPU 101 controls the heater 131 while acquiring the detected temperature at a predetermined cycle so that the detected temperature becomes the startup temperature (S17).

When the operator does not input the cartridge replacement information to the operation unit 19 (S39: NO), the CPU 101 determines whether or not the tread plate 7 has been stepped on (S41). When the operator does not step on the tread plate 7 (S41: NO), the CPU 101 shifts the process to S33. When the CPU 101 repeats S33, S35, S39, and S41, the detection temperature gradually decreases from the startup temperature and falls within a predetermined range. In FIG. 15, the time when the detected temperature reaches the predetermined temperature is t3, and the adhesive Z is higher than the predetermined temperature. When the CPU 101 determines that the detection temperature is within the predetermined range (S35: YES), the CPU 101 updates the storage abnormality notification flag to 1 and stores it in the storage device 104 (S37). When the abnormality notification flag is 1, it indicates that the abnormality notification is executed when the detection temperature is out of the predetermined range.

In the bonding process (see FIG. 17) described later, the bonding device 1 executes the bonding operation while the operator steps on the tread plate 7 (S73: YES, S78: NO). At that time, the CPU 101 determines that the tread plate 7 has been stepped on (S41: YES). The CPU 101 determines whether or not the detection temperature is within a predetermined range (S42). When the detection temperature is within the predetermined range (S42: YES), the CPU 101 shifts the process to S33 and repeats S33, S35, S39, S41, and S42. At that time, when the detection temperature deviates from the predetermined range for a sudden reason (S42: NO), the CPU 101 determines whether or not the abnormality notification flag is 1 (S43). When the abnormality notification flag is 1 (S43: YES), the CPU 101 executes the abnormality notification (S44). For example, the CPU 101 displays information indicating that the temperature of the adhesive Z is out of the predetermined range on the display unit 260. The CPU 101 shifts the process to S33 and repeats S33, S35, S39, S41, and S42.

Before the detection temperature drops from the start-up temperature to within a predetermined range (S35: NO), the operator may step on the tread plate 7 in the bonding process described later (S73: YES). The CPU 101 determines that the tread plate 7 has been stepped on (S41: YES). The detection temperature is out of the predetermined range (S42: NO). At this time, the abnormality notification flag is 0 (S43: NO), and the CPU 101 does not execute S44 and shifts the process to S33. Therefore, the bonding device 1 can stably execute the bonding operation without falsely notifying the occurrence of an abnormality.

When the detection temperature is higher than the determination temperature in S11 (S11: YES), the CPU 101 determines whether or not the temperature flag of storage in the storage device 104 is 1. When the temperature flag is 0 (S27: NO), the CPU 101 shifts the process to S13. When the temperature flag was updated to 1 in the previous heater temperature control process (S23), in the current heater temperature control process, the CPU 101 determines that the temperature flag is 1 (S27: YES), and performs the process in S31. Move to. That is, the CPU 101 does not execute the control (S17) of the heater 131 in which the detected temperature becomes the startup temperature. Since the adhesive Z has been liquefied before the start of the heater temperature control process this time, the adhesive device 1 can omit S17 to S21 and can prevent the adhesive Z from being unnecessarily heated at a high temperature.

The main processing will be described with reference to FIGS. 16 to 23. At the start of the main process, the nozzle 11 is in the proximity position and the rotation support portion 314 is in the operating position. When the power of the bonding device 1 is turned on, the CPU 101 starts the main process. The main process is executed in parallel with the heater temperature control process. The CPU 101 determines whether or not an operation instruction has been given to the operation unit 19 (S49). The CPU 101 waits until the operator inputs an operation instruction to the operation unit 19 (S49: NO). When the operator inputs an operation instruction to the operation unit 19 (S49: YES), the CPU 101 controls the air cylinder 931 to swing the lower holding roller 76 from the lower holding position to the lower separation position to control the air cylinder 39. Then, the upper holding roller 32 swings from the upper holding position to the upper separated position (S50). The CPU 101 controls the gap adjusting motor 68 to lower the rear end of the support frame 61 to expand the nozzle gap (S51). The CPU 101 determines whether or not the roller swing instruction has been detected (S52). The roller swing instruction is an instruction to swing the upper transport roller 12 in the vertical direction. The CPU 101 waits until the operator inputs the roller swing instruction to the operation unit 19 (S52: NO). When the operator inputs a roller swing instruction to the operation unit 19 (S52: YES), the CPU 101 controls the air cylinder 122 to swing the upper transfer roller 12 from the transfer position to the upper position (S53).

The CPU 101 controls the air cylinder 931 to swing the lower holding roller 76 from the lower separating position to the lower holding position (S54). The CPU 101 starts the lower edge control process (see FIG. 22) described later (S55). Specifically, the CPU 101 updates the lower edge flag stored in the storage device 104 from 0 to 1. When the lower edge flag is 0, the end of the lower edge control process is indicated, and when the lower edge flag is 1, the start of the lower edge control process is indicated. Even when the lower edge flag stored in the storage device 104 is already 1, the CPU 101 overwrites the lower edge flag with 1.

The CPU 101 determines whether or not the lower sheet 8 is arranged (S59). The CPU 101 waits until the operator inputs information indicating the completion of the arrangement of the lower sheet 8 to the operation unit 19 (S59: NO). At this time, the operator arranges the lower sheet 8. Specifically, the operator arranges the lower sheet 8 on the support plate 57, the nozzle plate 59, and the lower transfer roller 64. The lower sheet 8 is sandwiched between the lower holding roller 76 and the lower surface 317 of the rotation support portion 314. When the operator inputs information indicating the completion of the arrangement of the lower sheet 8 to the operation unit 19 (S59: YES), the CPU 101 controls the gap adjusting motor 68 to move the rear end of the support frame 61 upward to close the nozzle gap. Reduce (S61).

The CPU 101 determines whether or not the upper sheet 6 is arranged (S62). The CPU 101 waits until the operator inputs information indicating the completion of the arrangement of the upper sheet 6 to the operation unit 19 (S62: NO). At this time, the operator arranges the upper sheet 6. Specifically, the operator arranges the upper sheet 6 from above on the support plate 57, the upper surface 315 of the rotation support portion 314, the horizontally extended portion of the nozzle 11, and the rear end portion of the lower sheet 8. When the operator inputs information indicating the completion of the arrangement of the upper sheet 6 to the operation unit 19 (S62: YES), the CPU 101 controls the air cylinder 39 to swing the upper holding roller 32 from the upper separation position to the upper holding position. It moves (S63). The upper holding roller 32 sandwiches the upper sheet 6 with the upper surface 315 of the rotation support portion 314.

The CPU 101 starts the upper edge control process (see FIG. 23) described later (S64). Specifically, the CPU 101 updates the upper edge flag stored in the storage device 104 from 0 to 1. When the upper edge flag is 0, the end of the upper edge control process is indicated, and when the upper edge flag is 1, the start of the upper edge control process is indicated. Even when the upper edge flag stored in the storage device 104 is already 1, the CPU 101 overwrites the upper edge flag with 1.

The CPU 101 determines whether or not the roller swing instruction has been detected (S65). The CPU 101 waits until the operator inputs the roller swing instruction to the operation unit 19 (S65: NO). When the operator inputs a roller swing instruction to the operation unit 19 (S65: YES), the CPU 101 controls the air cylinder 122 to swing the upper transfer roller 12 from the upper position to the transfer position (S66). The upper transfer roller 12 sandwiches the lower sheet 8 and the upper sheet 6 with the lower transfer roller 64. The CPU 101 executes the bonding process (S69).

As shown in FIG. 17, the CPU 101 determines whether or not the tread plate 7 has been stepped on (S73). The CPU 101 waits until the operator steps on the tread plate 7 (S73: NO). When the operator steps on the tread plate 7 (S73: YES), the CPU 101 determines whether or not the detection temperature is within a predetermined range (S75). When the detection temperature is not within the predetermined range (S75: NO), the CPU 101 shifts the process to S73.

When the detection temperature is within the predetermined range (S75: YES), the CPU 101 controls the lower transfer motor 63 and the upper transfer motor 112 to start driving the lower transfer roller 64 and the upper transfer roller 12 (S76). The transport mechanism 20 transports the upper sheet 6 and the lower sheet 8 to the rear side by the cooperation of the upper transfer roller 12 and the lower transfer roller 64. The CPU 101 controls the pump motor 114 to start discharging the adhesive Z (S77). By driving the pump motor 114, the supply mechanism supplies the cartridge and the adhesive Z liquefied in the flow paths 11A and 21 to the discharge port 13. Therefore, the nozzle 11 discharges the adhesive Z from the discharge port 13.

The CPU 101 determines whether or not the tread plate 7 is in the neutral position (S78). The rotation of the tread plate 7 from the stepping position to the neutral position indicates that the bonding operation is stopped. That is, in S78, the CPU 101 determines whether or not to stop the adhesion between the upper sheet 6 and the lower sheet 8. While the operator is stepping on the tread plate 7 (S78: NO), the CPU 101 stands by. At this time, the nozzle 11 discharges the adhesive Z toward the lower sheet 8, and the transport mechanism 20 crimps the lower sheet 8 and the upper sheet 6 coated with the adhesive Z and transports them to the rear side. Therefore, the adhesive device 1 adheres the lower sheet 8 and the upper sheet 6.

When the tread plate 7 that the operator has stepped on is returned to the neutral position (S78: YES), the CPU 101 determines that the adhesion between the upper sheet 6 and the lower sheet 8 is stopped, and controls the air cylinder 809 to release the holding member 810. The state is switched to the holding state (S79). The holding member 810 sandwiches the lower sheet 8 with the lower surface 317 of the rotation support portion 314 (see FIG. 19).

The CPU 101 controls the timer 135 to start timing (S80). The CPU 101 determines whether or not the predetermined holding time has elapsed (S81). The CPU 101 waits until the predetermined holding time elapses (S81: NO). At this time, the lower transfer motor 63, the upper transfer motor 112, and the pump motor 114 are driven. By driving the lower transfer roller 64 and the upper transfer roller 12, the lower sheet 8 is in a posture extended in the front-rear direction between the holding member 810 and the transfer position (see FIG. 20).

When the predetermined holding time elapses (S81: YES), the CPU 101 ends the control of the timer 135 and ends the timekeeping (S82). The CPU 101 stops driving the lower transfer motor 63, the upper transfer motor 112, and the pump motor 114 (S83). The bonding device 1 stops the bonding operation.

The CPU 101 determines whether or not the tread plate 7 in the neutral position has been stepped on (S84). When the operator steps on the tread plate 7 (S84: YES), the CPU 101 determines whether or not the detection temperature is within a predetermined range (S90). When the detection temperature is not within the predetermined range (S90: NO), the CPU 101 stands by. When the detection temperature is within the predetermined range (S90: YES), the CPU 101 controls the lower transfer motor 63 and the upper transfer motor 112, and restarts the driving of the lower transfer roller 64 and the upper transfer roller 12 (S91).

The CPU 101 controls the timer 135 to start timing (S92). The CPU 101 determines whether or not the release time has arrived based on the timing result of the timer 135 (S93). The CPU 101 waits until the release time arrives (S93: NO). At this time, the holding member 810 in the holding state and the lower sheet 8 in the transporting position maintain the stretched state in the front-rear direction (see FIG. 21). When the release time arrives (S93: YES), the CPU 101 controls the air cylinder 809 to switch the holding member 810 from the holding state to the released state (S94). The holding member 810 is separated downward from the lower sheet 8 (see FIG. 21). The CPU 101 controls the timer 135 to end the timing (S95).

The CPU 101 shifts the process to S77, and the bonding device 1 continues the bonding operation. When the tread plate 7 that the operator has stepped on is returned to the neutral position (S78: YES), the CPU 101 executes S80 to S84 after holding the holding member 810 in the holding state (S79). When the operator does not step on the tread plate 7 (S84: NO), the CPU 101 determines whether or not the tread plate 7 has been stepped back (S85). When the tread plate 7 is not stepped back (S85: NO), the CPU 101 shifts the process to S84. When the operator steps back on the tread plate 7 (S85: YES), the CPU 101 controls the air cylinder 809 to release the holding member 810 (S86), and returns to the main process.

The CPU 101 ends the lower edge control process (see FIG. 22) and the upper edge control process (see FIG. 23), which will be described later (S70). Specifically, the CPU 101 updates the lower edge flag and the upper edge flag stored in the storage device 104 from 1 to 0, respectively. The CPU 101 determines whether or not there has been an operation of turning off the power of the adhesive device 1 (S72). When there is no operation to turn off the power (S72: NO), the CPU 101 shifts the process to S49. Before inputting the operation instruction in the operation unit 19 (S49: NO), the operator takes out the bonded lower sheet 8 and upper sheet 6. Therefore, the sheet 200 to which the lower specific end portion 8A and the upper specific end portion 6A are adhered is completed. When the CPU 101 executes S50 to S69, the bonding device 1 can bond the new lower sheet 8 and the upper sheet 6.

When there is an operation to turn off the power (S72: YES), the CPU 101 ends the main process.

The lower edge control process will be described with reference to FIG. The lower edge control process is a process executed in parallel with the main process. The CPU 101 determines whether or not to start the lower edge control process (S101). The CPU 101 waits until the lower edge flag stored in the storage device 104 is updated to 1 (S101: NO). When the lower edge flag is updated to 1 in S55 of the main process (S101: YES), the CPU 101 determines whether or not the lower specific end portion 8A is in the lower detection position based on the detection result of the lower detection unit 78. (S103). When the CPU 101 determines that the lower specific end portion 8A is in the lower detection position (S103: YES), the CPU 101 controls the lower pinch motor 72 to rotate the lower pinch roller 76 in the first output direction (S105). The first output direction is the rotation direction of the lower holding roller 76 in which the upper end of the lower holding roller 76 is directed to the left. The CPU 101 shifts the process to S109.

When the CPU 101 determines that the lower specific end portion 8A is not in the lower detection position (S103: NO), it controls the lower pinch motor 72 to rotate the lower pinch roller 76 in the second output direction (S107). The second output direction is opposite to the first output direction. The CPU 101 shifts the process to S109.

The CPU 101 determines whether or not to end the lower edge control process (S109). The CPU 101 shifts the process to S103 and repeats S103 to S109 until the lower edge flag is updated to 0 in S70 of the main process (S109: NO). When the CPU 101 executes S105, the lower sheet 8 moves to the left, and when the CPU 101 executes S107, the lower sheet 8 moves to the right. That is, during the execution of the bonding operation, the lower sheet 8 is conveyed to the rear side while reciprocating in the left-right direction while being sandwiched between the lower holding roller 76 and the lower surface 317 of the rotation support portion 314. ..

When the lower edge flag is updated from 1 to 0 in S70 of the main process (S109: YES), the CPU 101 stops driving the lower pinch motor 72 (S111), shifts the process to S101, and enters a standby state. ..

The upper edge control process will be described with reference to FIG. 23. The upper edge control process is a process executed in parallel with the main process. The CPU 101 determines whether or not to start the upper edge control process (S121). The CPU 101 waits until the upper edge flag stored in the storage device 104 is updated to 1 (S121: NO). When the upper edge flag is updated to 1 in S64 of the main process (S121: YES), the CPU 101 determines whether or not the upper specific end portion 6A is in the upper detection position based on the detection result of the upper detection unit 85. (S123). When the CPU 101 determines that the upper specific end portion 6A is in the upper detection position (S123: YES), the CPU 101 controls the upper pinch motor 38 to rotate the upper pinch roller 32 in the third output direction (S125). The third output direction is the rotation direction of the lower holding roller 76 in which the lower end of the upper holding roller 32 faces to the right. The CPU 101 shifts the process to S129.

When the CPU 101 determines that the upper specific end portion 6A is not in the upper detection position (S123: NO), the CPU 101 controls the upper pinching motor 38 to rotate the upper pinching roller 32 in the fourth output direction (S). S127). The fourth output direction is opposite to the third output direction. The CPU 101 shifts the process to S129.

The CPU 101 determines whether or not to end the upper edge control process (S129). Until the upper edge flag is updated from 1 to 0 in S70 of the main process (S129: NO), the CPU 101 shifts the process to S123 and repeats S123 to S129. When the CPU 101 executes S125, the upper sheet 6 moves to the right, and when the CPU 101 executes S127, the upper sheet 6 moves to the left. The CPU 101 alternately repeats S125 and S127. During the execution of the bonding operation, the upper sheet 6 moves back and forth in the left-right direction while being sandwiched between the upper holding roller 32 and the upper surface 315 of the rotation support portion 314, and moves to the rear side together with the lower sheet 8. Be transported.

When the upper edge flag is updated from 1 to 0 in S70 of the main process (S129: YES), the CPU 101 stops driving the upper pinch motor 38 (S131), shifts the process to S121, and enters a standby state. ..

During the bonding process, the CPU 101 repeats the lower edge control processes S103 to S109 and the upper edge control process S123 to S129. Therefore, the adhesive device 1 can keep the lengths of the lower specific end portion 8A and the upper specific end portion 6A, which are vertically overlapped with each other, in a certain range in the left-right direction.

During the execution of the bonding operation, the adhesive Z located between the discharge port 13 and the lower sheet 8 is attached to the lower sheet 8 at the bonding position on the lower side of the discharge port 13. (Hereinafter, referred to as transport resistance) is generated. Among the lower sheets 8, the lower sheet 8 between the nozzle 11 and the transfer position is in a state of being stretched in the front-rear direction due to the transfer resistance during the execution of the bonding operation. Therefore, tension acts on the lower sheet 8. If the tension acting on the lower sheet 8 disappears due to the stop of the discharge of the adhesive Z from the discharge port 13 after the bonding operation is stopped, the stretched lower sheet 8 may move in the front-rear direction. is there. Since the position of the lower sheet 8 in the front-rear direction changes depending on whether the bonding operation is stopped or restarted, there is a possibility that the lower sheet 8 may have an unapplied portion of the adhesive Z even if the bonding device 1 resumes the bonding operation. is there. In the present embodiment, when the CPU 101 determines that the adhesion between the upper sheet 6 and the lower sheet 8 is stopped (S78: YES), the CPU 101 switches the holding mechanism 800 from the released state to the holding state (S79). The holding member 810 sandwiches the lower sheet 8 with the lower surface 317 of the rotation support portion 314. When stopping the adhesion between the upper sheet 6 and the lower sheet 8, the CPU 101 simply switches the holding mechanism 800 from the released state to the holding state, and the bonding device 1 holds the lower sheet 8 between the holding member 810 and the rotation support portion 314. Can be held between. Therefore, the bonding device 1 can more easily prevent the lower sheet 8 from moving in the front-rear direction between the time when the bonding operation is stopped and the time when it is restarted. Therefore, the adhesive device 1 can more easily and more reliably suppress the unapplied portion of the adhesive Z from being generated on the lower sheet 8.

Only by moving the holding member 810 by driving the air cylinder 809, the holding mechanism 800 is switched to the holding state, and the lower sheet 8 can be held between the rotating support portion 314 and the rotating support portion 314. Therefore, the adhesive device 1 can simplify the holding mechanism 800.

By sandwiching the lower sheet 8 between the holding member 810 and the rotation support portion 314, the bonding device 1 can suppress the lower sheet 8 from moving in the front-rear direction after the bonding operation is stopped. Therefore, the holding mechanism 800 can easily hold the lower sheet 8 by the holding member 810, and can prevent the uncoated portion of the adhesive Z from forming on the lower sheet 8.

For example, when the bonding operation is stopped (S78: YES), the lower sheet 8 between the holding member 810 in the holding state and the nozzle 11 is loose, and the lower sheet between the nozzle 11 and the transport position is loose. There are times when 8 is extended in the front-rear direction due to transport resistance. At this time, the lower sheet 8 between the nozzle 11 and the transport position may move in the front-rear direction between the end and the restart of the adhesive operation, and an unapplied portion of the adhesive may be generated on the lower sheet 8. .. In the present embodiment, after the holding mechanism 800 is switched to the holding state, the CPU 101 drives the lower transfer motor 63 and the upper transfer motor 112 until a predetermined holding time elapses (S81: NO), and the lower sheet 8 and the upper sheet 6 is transported. Therefore, since the lower sheet 8 between the holding member 810 and the nozzle 11 is in a state of being stretched in the front-rear direction, the bonding device 1 more reliably ensures that the lower sheet 8 moves in the front-rear direction after the bonding operation is stopped. Can be suppressed.

In the setting process, the CPU 101 accepts the setting of the predetermined holding time (S3). Since the user can freely set a predetermined time according to the materials of the lower sheet 8 and the upper sheet 6, the adhesive device 1 suppresses the movement of the lower sheet 8 and the upper sheet 6 in the front-rear direction due to the tension. Easy to control.

The CPU 101 switches the holding mechanism 800 from the holding state to the released state (S94) at the start of transporting the upper sheet 6 and the lower sheet 8 (S91). The adhesive device 1 can start the transfer from the state where the lower sheet 8 is held. Since the adhesive device 1 can start the transportation of the lower sheet 8 in a state where the movement of the lower sheet 8 in the front-rear direction is restricted, it is possible to reliably suppress the unapplied portion of the adhesive Z from being generated on the lower sheet 8.

In the setting process, the CPU 101 accepts the setting of the release time (S6). Since the operator can freely set the release time according to the elasticity of the lower sheet 8, the adhesive device 1 ensures that an unapplied portion of the adhesive Z is generated on the lower sheet 8 regardless of the material of the sheet or the like. Can be deterred.

The position where the holding member 810 holds the lower sheet 8 with the rotation support portion 314 is aligned with the discharge port 13 in the transport direction. Therefore, when the bonding operation is stopped (S78: YES), the bonding device 1 can prevent the lower sheet 8 held by the holding member 810 from tilting in the front-rear direction.

The lower detection unit 78 detects the presence or absence of the lower specific end portion 8A. When the lower sheet 8 and the upper sheet 6 are conveyed, the CPU 101 swings the lower holding roller 76 from the lower separation position to the lower holding position (S50), and moves the lower holding roller 76 according to the detection result of the lower detection unit 78. It reciprocates (S103 to S107). The holding member 810 is held above the shaft portion 75 with the lower sheet 8 sandwiched between the holding member 810 and the rotating support portion 314. Therefore, the holding member 810 can prevent the lower sheet 8 from tilting in the front-rear direction while avoiding contact with the shaft portion 75.

In the above description, the lower sheet 8 is an example of the discharge sheet of the present invention. The air cylinder 809 is an example of the drive unit of the present invention. The rotation support portion 314 is an example of the arrangement member of the present invention. The shaft portion 75 is an example of the rotating shaft of the present invention. The lower holding roller 76 is an example of the roller of the present invention. The support frame portion 73 is an example of the swing portion of the present invention. The air cylinder 931 is an example of the swing drive unit of the present invention. The lower holding motor 72 is an example of the motor of the present invention. The lower detection unit 78 is an example of the detection unit of the present invention.

The CPU 101 that executes S76 and S77 is an example of the adhesion control unit of the present invention. The CPU 101 that executes S78 is an example of the stop determination unit of the present invention. The CPU 101 that executes S79 is an example of the holding control unit of the present invention. The CPU 101 that executes S81 is an example of the timekeeping determination unit of the present invention. The CPU 101 that executes S83 is an example of the adhesion stop portion of the present invention. The CPU 101 that executes S5 is an example of the time reception unit of the present invention. The CPU 101 that executes S94 is an example of the release control unit of the present invention. The CPU 101 that executes S6 is an example of the release time reception unit of the present invention. The CPU 101 that executes S50, S103, S105, and S107 is an example of the adjustment control unit of the present invention.

The present invention is not limited to the above examples. The discharge port 13 of the nozzle 11 may be provided above the horizontal extension portion. At this time, the nozzle 11 discharges the adhesive Z to the upper sheet 6, and the holding member 810 holds the upper sheet 6 by sandwiching it with, for example, the rotation support portion 314. The upper sheet 6 at that time is an example of the discharge sheet of the present invention. The transport mechanism 20 may include a transport belt instead of the lower transport roller 64 and the nozzle lower roller 65. The transport belt is arranged below the nozzle 11.

The position where the holding member 810 holds the lower sheet 8 with the rotation support portion 314 may be aligned with at least a part of the discharge port 13 in the front-rear direction, and is displaced in the vertical direction with respect to the discharge port 13. You may. The holding member 810 may hold the lower sheet 8 between a member different from the rotation support portion 314, and the holding position may not be aligned in the front-rear direction with respect to the discharge port 13. ..

The holding member 810 may have a spherical shape provided above the shaft portion 75 instead of having a substantially U-shape that opens downward in the front view, or extends above the shaft portion 75 in the left-right direction. It may be columnar.

The release time may be at the same time as the restart of the transport operation (S91), or may be before the restart of the transport operation. At that time, the CPU 101 executes S94 at the same time as S91 or before S91. The operator may be able to set in S6 of the setting process whether or not the release time is set after the transport operation or before the recoil operation.

The holding member 810 is not limited to directly contacting and holding the lower sheet 8. For example, the holding member 810 that switches from the released state to the holding state may move upward and come into contact with the lower holding roller 76 at the lower holding position from below and urge upward. At this time, the holding member 810 indirectly sandwiches and holds the lower sheet 8 with the rotation support portion 314 via the lower holding roller 76. When the lower holding roller 76 sandwiches and holds the lower sheet 8 with the rotation support portion 314, the holding mechanism 800 including the holding member 810 may be omitted. At this time, a driving means (air cylinder or the like) for urging the lower holding roller 76 upward may be provided. At this time, the lower holding roller 76 is an example of the holding member of the present invention, and the driving means is an example of the driving unit of the present invention.

1 Adhesive device 6 Upper sheet 8 Lower sheet 11 Nozzle 13 Discharge port 20 Conveyance mechanism 72 Lower holding motor 73 Support frame part 75 Shaft part 76 Lower holding roller 78 Lower detection part 101 CPU
314 Rotational support 800 Holding mechanism 809 Air cylinder 810 Holding member 931 Air cylinder Z Adhesive

Claims (9)

Nozzle that discharges adhesive and
A transport mechanism in which the upper sheet and the lower sheet are crimped and conveyed with the adhesive discharged by the nozzle in between.
Adhesion provided with an adhesion control unit that controls the discharge of the adhesive from the nozzle and the drive of the transfer mechanism, and crimps and adheres the upper sheet and the lower sheet to the downstream side in the transfer direction. In the device
A holding state in which the upper sheet or the discharge sheet, which is the lower sheet to which the adhesive discharged by the nozzle adheres, is held on the upstream side of the nozzle in the transport direction, and a release state in which the discharge sheet is released. Equipped with a switchable holding mechanism
The holding mechanism is in the released state when the upper sheet and the lower sheet are conveyed by the adhesion control unit.
A stop determination unit that determines whether or not to stop adhesion between the upper sheet and the lower sheet by the adhesion control unit,
Adhesion including a holding control unit that switches the holding mechanism from the released state to the holding state when the stop determining unit determines that the bonding of the upper sheet and the lower sheet by the bonding control unit is stopped. apparatus. The holding mechanism is
A holding member provided on the upstream side of the nozzle in the transport direction and switched between a holding state for holding the discharge sheet and a release state for releasing the discharge sheet.
A drive unit for moving the holding member is provided.
The adhesive device according to claim 1, wherein the holding control unit switches the holding member from the released state to the holding state by controlling the driving unit. The discharge sheet is the lower sheet.
An arrangement member provided on the upstream side of the nozzle in the transport direction and arranged between the upper sheet and the lower sheet is provided.
The adhesive device according to claim 2, wherein the holding member holds the lower sheet sandwiched between the lower sheet and the arranging member in the holding state. A timekeeping determination unit that determines whether or not a predetermined holding time, which is a predetermined time, has elapsed since the holding control unit switched the holding mechanism from the released state to the holding state.
3. The third aspect of the present invention is the provision of an adhesive stop portion for stopping the discharge of the adhesive from the nozzle and the drive of the transfer mechanism when the time measuring unit determines that the predetermined holding time has elapsed. Adhesive device described in. It is equipped with a time reception unit that accepts the setting of the predetermined holding time.
When the timekeeping determination unit determines that the predetermined holding time received by the time reception unit has elapsed, the adhesion stop unit stops the ejection of the adhesive from the nozzle and the drive of the transfer mechanism. The adhesive device according to claim 4, wherein the adhesive device is characterized by the above. The invention according to any one of claims 3 to 5, further comprising a release control unit that switches the holding mechanism from the holding state to the releasing state at the start of transporting the upper sheet and the lower sheet by the adhesion control unit. Adhesive device. The adhesive device according to claim 6, wherein the release control unit includes a release time reception unit that receives a setting of a release time, which is a time to switch the holding mechanism from the holding state to the release state. The nozzle has a discharge port for discharging the adhesive.
The adhesive device according to any one of claims 3 to 7, wherein the holding member holds the lower sheet at a position aligned with the discharge port in the transport direction. A rotation shaft extending in the transport direction and
A roller provided on the rotating shaft on the downstream side of the holding member in the transport direction,
A swinging portion provided on the upstream side of the holding member in the transport direction, supporting the rotating shaft, and swinging around an axis extending in the transport direction at a position deviated from the rotating shaft.
A rocking drive unit that swings the rocking part,
A motor that rotates the rotating shaft and
It is provided with a detection unit that is fixed at a predetermined position and detects the presence or absence of one end of the lower sheet in a predetermined direction orthogonal to the vertical direction and the transport direction.
The roller can swing between the holding position where the lower sheet is sandwiched between the placement member and the lower position below the holding position by driving the swing driving unit.
When the lower sheet and the upper sheet are conveyed by the adhesion control unit, the rocking drive unit is controlled to move the roller from the lower position to the holding position, and the motor is driven to drive the detection unit. It is equipped with an adjustment control unit that reciprocates the roller according to the detection result.
The adhesive device according to claim 8, wherein when the holding member is in the holding state, the lower sheet is sandwiched between the holding member and the arrangement member above the rotating shaft.

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