JP2018090361A - Bonding device and method of controlling the same - Google Patents

Abstract

An adhesive device capable of stably adhering an adhesive to a downstream end of a conveyed sheet in a transport direction, and a method of controlling the adhesive device. The bonding device includes a support part and a nozzle. The support portion 420 supports the lower cloth C1 from below. The nozzle 11 is provided on the opposite side of the support cloth 420 with respect to the lower cloth C1. The nozzle 11 has a discharge port 11D for discharging the adhesive Z downward. The nozzle 11 is displaced between a first facing position shown in (a) and a second facing position shown in (b). When the nozzle 11 is at the first facing position, the discharge port 11D faces the lower cloth C1 from above. When the nozzle 11 is located at the second facing position, the discharge port 11D faces the lower cloth C1 from above at a position behind the first facing position. While the nozzle 11 moves from the first opposing position to the second opposing position, the ejection port 11D ejects the adhesive Z to the stationary lower cloth C1. [Selection diagram] FIG.

Description

  The present invention relates to a bonding apparatus and a method for controlling the bonding apparatus.

  A bonding apparatus that bonds two stacked sheets is known. The bonding apparatus disclosed in Patent Document 1 superposes and bonds an upper cloth and a lower cloth, which are examples of sheets. The bonding apparatus includes a belt, a nozzle, and a first roller. The belt is disposed below the nozzle. The conveyance part which is a part extended in the front-back direction among belts supports the lower cloth. The conveyance part extends to the rear side of the nozzle. The nozzle includes a discharge port for discharging the adhesive at the lower end. The bonding apparatus sandwiches the lower cloth between the conveyance site and the discharge port. A 1st roller is provided above the rear-end part of a conveyance site | part. The conveying part of the first roller and the belt sandwiches the upper cloth disposed on the rear side of the nozzle via the upper part of the nozzle and the lower cloth to which the adhesive is attached from above and below. The bonding apparatus bonds an upper cloth and a lower cloth sandwiched from above and below while conveying them backward.

JP 2010-222140 A

  The bonding apparatus first discharges the adhesive to the downstream end of the lower cloth in the transport direction when the bonding operation starts. In this case, the belt presses the downstream end in the transport direction of the lower cloth, which is in front of the first roller, against the discharge port. The discharge port discharges adhesive. The belt conveys the downstream end portion in the conveyance direction of the lower cloth to which the adhesive is attached toward the first roller. However, if the force with which the belt presses the lower cloth against the discharge port is too weak, the belt may slide against the lower cloth. As a result, the adhesive adhering to the rear end portion of the lower fabric may be excessive. On the other hand, when the force with which the belt presses the lower cloth against the discharge port is too strong, the discharge port may not be able to discharge the adhesive. As a result, there is a possibility that the adhesive adhering to the rear end portion of the lower cloth is insufficient.

  An object of the present invention is to provide a bonding apparatus capable of stably adhering an adhesive to a downstream end portion in the conveyance direction of a conveyed sheet, and a method for controlling the bonding apparatus.

  The bonding apparatus according to the first aspect of the present invention includes a support portion that supports the first sheet from below, and an adhesive that is provided on the opposite side of the support portion with respect to the first sheet. A nozzle having a discharge port for discharging the adhesive, a supply mechanism for supplying the adhesive to the nozzle, and the first sheet to which the adhesive is attached downstream of the nozzle in the transport direction of the first sheet; And a conveying mechanism that conveys the second sheet that is superimposed on the first sheet from above, and includes a nozzle motor that is connected to the nozzle, and the nozzle has the discharge port at the first outlet. The driving force of the nozzle motor is between a first facing position facing one sheet and a second facing position where the discharge port faces the first sheet on the downstream side in the transport direction from the first facing position. Displaced by the conveyor A discharge control unit that drives and controls the supply mechanism and the nozzle motor in a state where the nozzle is stopped, displaces the nozzle from the first facing position to the second facing position, and discharges the adhesive from the discharge port; After the adhesive is discharged by the discharge controller, the nozzle motor is driven and controlled while the transport mechanism and the supply mechanism are stopped, and the nozzle is displaced from the second facing position to the first facing position. After the displacement of the nozzle to the first facing position by the first displacement control unit and the first displacement control unit, the conveyance mechanism and the supply mechanism are driven and controlled, and the adhesive is discharged from the discharge port. And a discharge conveyance control unit that conveys the first sheet and the second sheet.

  According to the above configuration, for example, after the operator arranges the downstream end of the first sheet in the conveyance direction on the support unit, the discharge control unit displaces the nozzle from the first opposing position to the second opposing position, The adhesive is discharged toward the downstream end of the sheet in the conveyance direction. The relative positions of the first sheet and the nozzles stably change according to the displacement of the nozzles by the ejection control unit. Therefore, it is possible to realize an adhesive device capable of stably attaching an adhesive to the downstream end portion of the conveyed sheet.

  In the bonding apparatus, the transport mechanism includes a lower transport unit having a lower rotation shaft extending in a predetermined direction orthogonal to the transport direction and the vertical direction, and a lower rotation unit supported by the lower rotation shaft; The conveyance unit is moved between a first contact position where the lower rotation unit contacts the first sheet from the lower side and a first retraction position where the lower rotation unit retracts downward with respect to the first contact position. A lower conveyance driving unit, an upper rotation shaft extending in parallel with the lower rotation axis on the upper side with respect to the second sheet, and the lower conveyance unit supported by the upper rotation shaft and in the first contact position An upper conveyance unit having an upper rotation unit sandwiching the first sheet and the second sheet, and controlling the lower conveyance drive unit before ejection by the ejection control unit. The lower transport unit is moved from the first contact position to the first retracted position. After the displacement of the nozzle by the one conveyance control unit and the discharge control unit and before the conveyance by the discharge conveyance control unit, the lower conveyance driving unit is controlled to move the lower conveyance unit from the first retracted position. You may provide the 2nd conveyance control part which moves to a 1st contact position. After the first transport control unit moves the lower transport unit to the first retracted position, the discharge control unit displaces the nozzle to the second facing position. Therefore, the nozzle that is displaced to the second facing position is unlikely to contact the lower rotating portion. Since the displacement of the nozzle toward the second facing position is stabilized, the bonding apparatus can more stably adhere the adhesive to the downstream end of the conveyed sheet.

  In the bonding apparatus, the nozzle at the second facing position is configured such that the lower rotating portion and the upper rotating portion sandwich the first sheet and the second sheet, or the downstream side in the transport direction from the sandwiching position. May be. The nozzle that is displaced toward the second facing position can adhere the adhesive across the downstream end of the first sheet.

  In the bonding apparatus, a nozzle lever that extends in the vertical direction and supports the nozzle at a lower end portion, and a support that extends in the predetermined direction and is connected to the upper end portion of the nozzle lever so as to swingably support the nozzle lever. The nozzle motor is connected to the support shaft and rotates the support shaft; the nozzle lever swings around the support shaft by the rotation of the support shaft; The nozzle lever may be displaced to displace between the first facing position and the second facing position. Even if the nozzle is displaced between the first facing position and the second facing position, the separation distance between the supply mechanism and the discharge port is unlikely to change. Therefore, the bonding apparatus can easily keep the temperature of the discharged adhesive constant.

  In the bonding apparatus, the nozzle can be displaced between a retreat position downstream of the second facing position in the transport direction and the first facing position, and when the nozzle is in the retracted position, The vertical position of the discharge port is higher than when the nozzle is at the first opposed position and the second opposed position, after the discharge of the adhesive by the discharge control unit, and the first displacement A retreat displacement control unit that drives and controls the nozzle motor in a state in which the transport mechanism and the supply mechanism are stopped before the nozzle is moved by the control unit and displaces the nozzle from the second facing position to the retreat position; The first displacement control unit may displace the nozzle to the first facing position via the second facing position after the retreating displacement control unit has displaced the nozzle to the retracted position. . The nozzle displaced to the retreat position by the retreat displacement control unit becomes difficult to contact the first sheet until it is displaced by the first displacement control unit.

  In the bonding apparatus, the support portion includes a first support surface along the transport direction, and an arc-shaped surface that is provided on one side of the predetermined direction with respect to the first support surface and has the support shaft as a center. A support member having a second support surface, a base portion that supports the support member so as to be movable in the predetermined direction, and is fixed to the base portion and is connected to the support member and moves the support member in the predetermined direction. A support member driving unit, and an end of the second support surface on the downstream side in the transport direction is located downstream of an end of the first support surface on the downstream side in the transport direction, and the support member is The first support surface is a first support position that supports the first sheet, and the other side of the predetermined direction with respect to the first support position, and the second support surface supports the first sheet. Between the two support positions and the front by the first transport control unit A first movement control unit that moves the support member from the first support position to the second support position by controlling the support member driving unit after the movement of the lower transport unit and before discharge by the discharge control unit. And after the ejection by the ejection control unit and before the movement of the lower conveyance unit by the second conveyance control unit, the support member driving unit is controlled to move the support member from the second support position to the first You may provide the 2nd movement control part which moves to a support position. When the first movement control unit moves the support member to the second support position, the second support surface supports the first sheet instead of the first support surface. The downstream end portion of the second support surface is on the downstream side in the transport direction with respect to the downstream end portion of the first support surface. Therefore, after the lower conveyance unit moves to the first retracted position, the bonding apparatus can suppress the first sheet from drooping downward.

  In the bonding apparatus, the base includes a first base to which the support member is fixed, and a second base to support the first base so as to be movable in the predetermined direction and to fix the support member driving unit. And the support portion is supported by the first base portion, is located on the downstream side in the transport direction with respect to the first support surface, and extends in the predetermined direction with the end portion on the downstream side in the transport direction of the second support surface. A juxtaposed member, and a juxtaposed member driving unit that is fixed to the first base, is connected to the juxtaposed member, and moves the juxtaposed member in the predetermined direction with respect to the first base. The member moves between the first support surface and a side-by-side position aligned in the transport direction, and a non-operating position away from the second support surface to the side opposite to the second support surface with respect to the side-by-side position. The second movement control unit is arranged in front of the support unit in which the juxtaposed member is in the juxtaposed position. The supporting member is moved, and after the movement by the first conveyance control unit and before the movement of the lower conveyance unit by the second conveyance control unit, the juxtaposition member driving unit is controlled so that the juxtaposition member is A third movement control unit that moves from a non-operating position to the juxtaposed position; and after the movement of the lower transport unit by the second transport control unit and before transport by the discharge transport control unit, the juxtaposed member drive unit And a fourth movement control unit that moves the juxtaposed member from the juxtaposed position to the non-actuated position. When the second movement control unit moves the support member to the first support position, the first support surface and the juxtaposed member support the first sheet. Therefore, the 1st sheet | seat with which the adhesive agent by discharge of a discharge control part adhered adheres to the downward direction easily.

  In the bonding apparatus, the transport mechanism moves the upper transport unit upward from a second contact position where the upper rotating unit contacts the second sheet from above, and the upper rotating unit moves upward with respect to the second contact position. An upper conveyance drive unit that moves between a second retraction position and a second retraction position, wherein the support unit is supported by the first base so as to be movable in the predetermined direction; Fixed to the moving member on the upstream side in the conveying direction, rotatably supporting the juxtaposed member, and a shaft member extending in the predetermined direction, and when the lower conveying unit is moved by the second conveying control unit, The lower rotating part comes into contact with the juxtaposed member from below, controls the upper transport driving unit after the juxtaposed member is moved by the fourth movement control unit, and before transport by the discharge transport control unit, The upper rotating part is moved from the second retracted position to the second contact It may comprise a third conveyance control unit which moves to the position. When the second transport control unit moves the lower transport unit to the first contact position, the lower rotating unit biases the juxtaposed member at the juxtaposed position upward. The juxtaposed member at the juxtaposed position rotates around the shaft member while supporting the first sheet. Even when the lower conveyance unit moves to the first contact position, the juxtaposed member continues to support the first sheet. Therefore, the bonding apparatus can suppress downward dripping of the first sheet to which the adhesive is attached when the lower transport unit is moved from the first retracted position to the first contact position.

  The bonding apparatus may include a position adjustment mechanism that adjusts a vertical position of the support portion. The bonding apparatus can adjust the gap between the support portion and the nozzle according to the thickness of the first sheet. Therefore, the bonding apparatus can stably adhere the adhesive to the downstream end portion of the first sheet regardless of the thickness of the first sheet to be conveyed.

  The bonding apparatus includes a position adjustment mechanism that adjusts a vertical position of the support portion, the position adjustment mechanism being rotatable about a motor and an axis extending in the vertical direction, and a screw connected to the motor. A shaft and a meshing body fixed to the base and having a hole portion through which the screw shaft is inserted and meshed, and the motor is controlled to move the meshing body up and down to move the support portion in the vertical direction. You may provide the adjustment control part which adjusts a position. The position of the support portion changes continuously according to the amount of rotation of the screw shaft. Therefore, the bonding apparatus can adjust the vertical position of the support portion with high accuracy.

  The bonding apparatus may include a worm that is rotatable about an axis extending in the transport direction and that is connected to the nozzle motor, and a worm wheel that is fixed to the support shaft and meshes with the worm. In this case, the displacement amount of the nozzle with respect to the drive amount of the nozzle motor becomes small. Therefore, the bonding apparatus can perform fine position control of the nozzle with high accuracy.

  In the bonding apparatus, a biasing member that is movable between a biasing position that biases the nozzle in the first facing position in the transport direction and a separation position that is spaced from the nozzle with respect to the biasing position. And an air cylinder having a rod connected to the urging member, controlling the air cylinder after the displacement of the nozzle by the first displacement control unit and before the conveyance by the discharge conveyance control unit, An urging control unit that moves the urging member from the separation position to the urging position may be provided. The first facing position of the nozzle is unlikely to vary. Therefore, the bonding apparatus can accurately control the position of the nozzle.

  The control method of the bonding apparatus according to the second aspect of the present invention includes a support portion that supports the first sheet from the lower side, and is provided on the opposite side of the support portion with respect to the first sheet. A nozzle having a discharge port for discharging the adhesive, a supply mechanism for supplying the adhesive to the nozzle, and the first to which the adhesive is attached downstream of the nozzle in the transport direction of the first sheet. One sheet and a conveying mechanism that conveys the second sheet superimposed on the first sheet from above, the nozzle having a first facing position where the discharge port faces the first sheet; A control method for an adhesive device, wherein the discharge port is displaced by a driving force of a nozzle motor connected to the nozzle between the discharge port and a second facing position facing the first sheet downstream of the first facing position in the transport direction. The transport mechanism is stopped. A discharge control step of driving and controlling the supply mechanism and the nozzle motor in a state where the nozzle is displaced from the first facing position to the second facing position and discharging the adhesive from the discharge port; After discharging the adhesive in the discharge control step, the nozzle motor is driven and controlled while the transport mechanism and the supply mechanism are stopped, and the nozzle is displaced from the second facing position to the first facing position. After the displacement of the nozzle to the first facing position in the one displacement control step and the first displacement control step, the conveyance mechanism and the supply mechanism are driven and controlled, and the adhesive is discharged from the discharge port, and A discharge conveyance control step of conveying the first sheet and the second sheet in between is provided. According to the said structure, there exists an effect similar to a 1st aspect.

FIG. 3 is a perspective view of the bonding apparatus 1. FIG. 3 is a perspective view showing an internal structure of the bonding apparatus 1. 2 is a left side view of the bonding apparatus 1. FIG. The perspective view of the nozzle lever rocking | fluctuation mechanism 22. FIG. The perspective view of the air cylinder 123. FIG. The perspective view of the lower conveyance mechanism 205. FIG. FIG. 10 is another perspective view of the lower transport mechanism 205. The perspective view of the lower cloth support mechanism 400. FIG. The rear view of the position adjustment mechanism 410. FIG. The perspective view of the support part 420. FIG. The perspective view of the auxiliary | assistant support mechanism 460. FIG. 2 is a block diagram showing an electrical configuration of the bonding apparatus 1. FIG. The flowchart of the main process. Explanatory drawing which shows the flow which the nozzle 11 displaces. Explanatory drawing which shows the flow of a movement of the supporting member 440, the lower roller 18, and the juxtaposed member 470. FIG. Explanatory drawing which shows the flow of a movement of the supporting member 440, the lower roller 18, and the juxtaposed member 470 following FIG. The left side view of the lower conveyance mechanism 205 and the upper conveyance mechanism 70 which convey by pinching | interposing the lower cloth C1 and the upper cloth C2.

  An embodiment of the present invention will be described. In the following description, left, right, front, back, and top and bottom indicated by arrows in the figure are used. The bonding apparatus 1 bonds two objects to be bonded with an adhesive Z. The object to be bonded is in the form of a flexible sheet, such as a lower cloth C1 and an upper cloth C2.

  The mechanical configuration of the bonding apparatus 1 will be described with reference to FIGS. As shown in FIGS. 1 to 3, the bonding apparatus 1 includes a pedestal 2, a pedestal 3, an arm 4, and a head 5. The pedestal portion 2 has a rectangular parallelepiped shape and is fixed to the work table. The pedestal 3 is columnar and extends upward from the upper surface of the pedestal 2. The arm portion 4 extends leftward from the upper end portion of the pedestal portion 3. The head 5 projects leftward from the left end of the arm 4.

  The pedestal 2 supports the attachment member 31. The attachment member 31 includes a fixing part 32 and a holding part 33. The fixing part 32 has a rectangular plate shape and is fixed to the left surface of the pedestal part 2. The holding portion 33 has a substantially box shape that extends leftward from the lower end portion of the fixed portion 32 and opens upward and leftward.

  The front end of the left surface of the fixing portion 32 fixes the cover 501 (see FIG. 1). The cover 501 has a box shape that opens downward, rightward, and rearward. The upper end of the cover 501 is a first support plate 52. The first support plate 52 is formed in a planar shape and supports the lower cloth C1 (see FIG. 14) from below. The fixing part 32 supports the second support plate 53. The second support plate 53 is a plate material that curves and extends rearward and obliquely downward. The second support plate 53 supports the upper cloth C2 (see FIG. 14D) from below.

  The holding part 33 holds the lower air cylinder 121. The lower air cylinder 121 includes a movable portion 121A (see FIG. 3) on the upper side. The movable portion 121 </ b> A moves in the vertical direction as the lower air cylinder 121 is driven. The movable portion 121A fixes the fixed portion 34 to the upper end portion. The fixed part 34 is a rectangular plate shape and extends substantially parallel to the horizontal plane. The fixing part 34 fixes the holding part 35 on the upper side. The holding part 35 has a triangular shape in left side view. The rear surface of the upper surface of the holding unit 35 is inclined upward.

  The holding unit 35 holds the lower transport mechanism 205 on the upper side. The lower transport mechanism 205 includes a lower transport unit 210 and a lower roller driving mechanism 15. The lower transport unit 210 includes the lower feed arm 7, the lower rotating shaft 211, and the lower roller 18. The lower feed arm 7 has a box shape extending in the vertical direction, and an arm shape whose upper side is inclined forward. The lower feed arm 7 supports the lower rotary shaft 211 at the tip. The lower rotating shaft 211 extends in the left-right direction and protrudes leftward from the lower feed arm 7. The lower roller 18 is supported at the left end of the lower rotating shaft 211.

  The lower roller driving mechanism 15 includes a lower conveyance motor 111, a first pulley, a timing belt, and a second pulley. The lower transport motor 111 is fixed to the holding unit 35 on the right side of the lower feed arm 7. The first pulley is fixed to the output shaft of the lower transport motor 111. The second pulley is fixed to the right end of the lower rotating shaft 211 inside the lower feed arm 7. The timing belt is bridged between the first pulley and the second pulley. The power of the lower transport motor 111 is transmitted to the lower roller 18 via the first pulley, the timing belt, the second pulley, and the lower rotating shaft 211. Therefore, the lower roller driving mechanism 15 rotates the lower roller 18 with the power of the lower transport motor 111.

  The lower transport unit 210 moves up and down between the first contact position (see FIGS. 3 and 16C) and the first retracted position (see FIG. 15A) by driving the lower air cylinder 121. When the lower conveyance unit 210 is in the first contact position, the lower roller 18 contacts the lower cloth C1 from below. When the lower conveyance unit 210 is in the first retracted position, the lower roller 18 is retracted downward with respect to the first contact position and separated downward from the lower cloth C1.

  As shown in FIGS. 2 and 3, the head 5 (see FIG. 1) supports the upper transport mechanism 70. The upper transport mechanism 70 includes the support arm 16, the upper transport unit 220, the upper air cylinder 122 (see FIG. 12), and the upper roller driving mechanism 21. The support arm 16 has a substantially L-shaped box shape that extends downward from the rear end of the head 5 and protrudes further forward. The support arm 16 supports the shaft portion 5B at the front end. The shaft portion 5B extends in the left-right direction.

  The upper transport unit 220 includes the upper feed arm 6, the upper rotating shaft 72, and the upper roller 12. The upper feed arm 6 is rotatably supported by the shaft portion 5B. The upper feed arm 6 has a box shape extending in the front-rear direction, and has an arm shape with the front side extending obliquely forward and downward. The rear end portion of the upper feed arm 6 is provided inside the lower end portion of the support arm 16 and is behind the shaft portion 5B. The upper rotating shaft 72 is supported at the front end of the upper feed arm 6. The upper rotary shaft 72 extends in the left-right direction and protrudes leftward from the upper feed arm 6. The upper roller 12 is supported at the left end of the upper rotating shaft 72.

  The upper air cylinder 122 (see FIG. 12) is provided inside the support arm 16 in a posture along the vertical direction. The upper air cylinder 122 includes a shaft extending in the vertical direction. The shaft of the upper air cylinder 122 is connected to the rear end portion of the upper feed arm 6. The upper feed arm 6 swings around the shaft portion 5 </ b> B by driving the upper air cylinder 122.

  The upper roller drive mechanism 21 includes an upper conveyance motor 112, a first pulley 21A, a first timing belt 21B, a second pulley, a second timing belt, and a third pulley. The upper conveyance motor 112 is fixed to the upper left part on the rear side of the head 5. The first pulley 21A is fixed to the output shaft 112A of the upper transport motor 112. The second pulley is provided inside the upper feed arm 6. The first timing belt 21B is bridged between the first pulley 21A and the second pulley. The third pulley is fixed to the right end of the upper rotating shaft 72 inside the upper roller 12. The second timing belt is bridged between the second pulley and the third pulley. The power of the upper conveyance motor 112 is transmitted to the upper roller 12 via the first pulley 21A, the first timing belt 21B, the second pulley, the second timing belt, the third pulley, and the upper rotating shaft 72. Therefore, the upper roller driving mechanism 21 rotates the upper roller 12 with the power of the upper conveying motor 112.

  As the upper feed arm 6 swings around the shaft portion 5B, the upper transport unit 220 moves between the second contact position (see FIG. 2) and the second retracted position (see FIG. 3). When the upper conveyance part 220 exists in a 2nd contact position, the upper roller 12 contacts the upper cloth C2 from the upper side. The upper roller 12 in the second retracted position retracts upward with respect to the second contact position and retracts upward from the upper cloth C2.

  The lower roller 18 of the lower conveyance unit 210 at the first contact position and the upper roller 12 of the upper conveyance unit 220 at the second contact position sandwich the upper and lower lower cloth C1 and upper cloth C2 from above and below. Hereinafter, a conveyance direction position where the lower roller 18 and the upper roller 12 sandwich the lower cloth C1 and the upper cloth C2 is referred to as a sandwiching position P (see FIG. 2). The upper conveyance mechanism 70 and the lower conveyance mechanism 205 convey the lower cloth C1 to which the adhesive Z is attached and the upper cloth C2 that overlaps the lower cloth C1 from above on the nipping position P. Hereinafter, the direction in which the upper roller 12 and the lower roller 18 convey the lower cloth C1 and the upper cloth C2 in an overlapping manner is referred to as a conveyance direction. The conveyance direction is a direction from the front to the rear (see arrow S in FIG. 2).

  As shown in FIGS. 2 and 4, the head 5 includes a nozzle lever swinging mechanism 22. The nozzle lever swing mechanism 22 includes a nozzle motor 113, a speed reduction mechanism 23, a nozzle lever 9, a nozzle cover 29, a nozzle support portion 10, and a nozzle 11. The nozzle motor 113 is a pulse motor and is provided on the left side inside the head 5. An output shaft 113 </ b> A of the nozzle motor 113 extends forward from the nozzle motor 113. The speed reduction mechanism 23 includes a worm 24, a support shaft 26, and a worm wheel 25. The worm 24 is fixed to the output shaft 113A of the nozzle motor 113. The worm 24 can rotate integrally with the output shaft 113A around an axis extending in the transport direction. The support shaft 26 has a cylindrical shape extending in the left-right direction above the worm 24. The left end of the support shaft 26 is closed, and the right end of the support shaft 26 is opened. The worm wheel 25 is fixed to the support shaft 26 and meshes with the upper end portion of the worm 24. When the worm 24 is rotated by driving the nozzle motor 113, the worm wheel 25 is rotated integrally with the support shaft 26. The reduction mechanism 23 transmits the power of the nozzle motor 113 to the worm wheel 25 at a predetermined reduction ratio (1:50 in this embodiment).

  The nozzle lever 9 is provided on the left side of the worm wheel 25 and has an arm shape extending downward from the left end of the support shaft 26. The extending direction of the nozzle lever 9 is a direction orthogonal to the support shaft 26. The upper end of the nozzle lever 9 is connected to the support shaft 26. The nozzle cover 29 has a box shape that covers the nozzle lever 9. The nozzle cover 29 is fixed to the nozzle lever 9 by a fastening member. The rear wall 29A of the nozzle cover 29 has an insertion hole. The insertion hole penetrates the rear wall 29A and exposes a part of the rear surface of the nozzle lever 9.

  The nozzle support 10 is supported at the lower end of the nozzle lever 9. The nozzle support portion 10 protrudes downward from the lower end of the nozzle lever 9. The nozzle 11 has a rod shape protruding rightward from the lower end of the nozzle support portion 10. The upper end of the nozzle 11 can support the upper cloth C2 from the lower side (see FIG. 14D). The nozzle 11 has a discharge port 11D (see FIG. 14C) on the lower surface. The discharge ports 11D are a plurality of circular holes arranged at equal intervals along the left-right direction. The discharge port 11D can discharge the adhesive Z (see FIG. 14) to the lower cloth C1.

  The nozzle lever 9 swings around the support shaft 26 by driving the nozzle motor 113. Therefore, the nozzle 11 is displaced between the initial position (see FIG. 3) and the retracted position (see FIG. 14 (c)) by the swing of the nozzle lever 9. When the nozzle 11 is in the initial position, the discharge port 11 </ b> D is located forward and downward with respect to the support shaft 26. When the nozzle 11 is in the retreat position, the discharge port 11D is on the downstream side of the clamping position P in the transport direction. The retreat position is a position lower than the initial position in the vertical direction. Before the nozzle 11 is displaced to the retreat position, the bonding apparatus 1 displaces the lower conveyance unit 210 and the upper conveyance unit 220 to the first retraction position and the second retraction position, respectively (see FIG. 14C).

  When the nozzle 11 is displaced between the initial position and the retreat position, the nozzle 11 passes through the first facing position (see FIGS. 2 and 14A) and the second facing position (see FIG. 14B). Both the first facing position and the second facing position are positions that are lower than the initial position and the retracted position in the vertical direction. When the nozzle 11 is in the first facing position, the discharge port 11D faces the lower cloth C1 from above. When the nozzle 11 is in the second facing position, the discharge port 11D faces the lower cloth C1 from above on the downstream side in the transport direction from the first facing position. In the present embodiment, the first facing position is a position on the upstream side in the transport direction from the sandwiching position P, and the second facing position is a position on the downstream side in the transport direction from the sandwiching position P.

  As shown in FIG. 5, the head 5 includes an air cylinder 123. The air cylinder 123 is fixed on the lower side of the nozzle motor 113 so that the front side is inclined downward. The air cylinder 123 includes a rod 123A and a biasing member 123B. The rod 123A extends from the upper rear to the lower front. The urging member 123B is connected to the front end portion of the rod 123A. When the nozzle 11 is in the first facing position, the air cylinder 123 is driven and the rod 123A moves together with the urging member 123B. In this case, the urging member 123B moves between the urging position (see FIG. 5) and the separation position (see FIG. 2) via the insertion hole of the rear wall 29A of the nozzle cover 29. The urging member 123B in the urging position contacts the rear surface of the nozzle lever 9 and urges the nozzle lever 9 forward. Therefore, the urging member 123B at the urging position urges the nozzle 11 at the first facing position to the upstream side in the transport direction. The urging member 123 </ b> B at the separation position is separated rearward from the rear wall 29 </ b> A of the nozzle cover 29. In FIG. 5, the illustration of the rear wall 29A of the nozzle cover 29 is omitted.

  As shown in FIG. 2, the head 5 includes a mounting portion 41 and a supply mechanism 45. The mounting portion 41 is provided at a substantially central portion of the head 5 and includes a cover 41A (see FIG. 1), a housing portion 41B, a lid 41C, and a heater 131 (see FIG. 12). The cover 41 </ b> A 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 41B is provided inside the cover 41A. The accommodating portion 41B 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 accommodating part 41B opens upward. The accommodating portion 41B accommodates a cartridge (not shown) in a removable manner. The lid 41C is detachably provided on the upper side of the accommodating portion 41B, and opens and closes the upper opening of the accommodating portion 41B. The cartridge contains a hot-melt adhesive Z (see FIG. 14). The adhesive Z liquefies when heated to a predetermined temperature and solidifies at a temperature lower than the predetermined temperature. The heater 131 is provided in the accommodating portion 41B. The heater 131 heats the cartridge accommodated in the accommodating portion 41B. The adhesive Z is melted and liquefied by the heating of the heater 131.

  The supply mechanism 45 includes a pump motor 114 and a gear pump 46. The pump motor 114 is provided inside the arm portion 4 (see FIG. 1). An output shaft 114 </ b> A of the pump motor 114 extends leftward from the pump motor 114. The gear pump 46 is provided on the front side of the mounting portion 41 and is connected to the right end portion of the support shaft 26. The output shaft 114A is connected to the gear pump 46 through a gear 46A. The gear pump 46 sucks the adhesive Z from the cartridge accommodated in the accommodating portion 41B. The gear pump 46 supplies the sucked adhesive Z to the nozzle 11.

  The flow path (not shown) of the adhesive Z will be described. The adhesive Z flows through the flow paths inside the gear pump 46, inside the support shaft 26, inside the nozzle lever 9, inside the nozzle support portion 10, and inside the nozzle 11, and reaches the discharge port 11D. The nozzle lever 9 includes a heater 132 (see FIG. 12) in the vicinity of the internal flow path. Heat of the heater 132 is conducted to the nozzle 11 through the nozzle support 10. The heater 132 heats the adhesive Z flowing inside the nozzle lever 9 toward the discharge port 11D.

  When the pump motor 114 is driven, the gear pump 46 sucks the adhesive Z from the cartridge accommodated in the accommodating portion 41B. The adhesive Z dissolved by heating by the heaters 131 and 132 flows from the cartridge through each flow path, and the discharge port 11D discharges the adhesive Z downward.

  As shown in FIGS. 6 to 9, the bonding apparatus 1 includes a lower cloth support mechanism 400. The lower cloth support mechanism 400 is provided on the upstream side in the transport direction of the lower transport mechanism 205 and is fixed to the pedestal 2 (see FIG. 1). The lower cloth support mechanism 400 includes a base 405, a position adjustment mechanism 410, and a support unit 420. The lower cloth support mechanism 400 supports the lower cloth C1 (see FIG. 14) from the lower side by the support portion 420.

  The base 405 has a substantially rectangular plate shape when viewed from the front, and is fixed to the left surface of the base 2. The base 405 supports the position adjustment mechanism 410. The position adjustment mechanism 410 adjusts the vertical position of the support part 420. The position adjustment mechanism 410 includes an adjustment motor 412, a screw shaft 414, a connection belt 415 (see FIG. 9), a connection base 413, and a meshing body 417 (see FIG. 9). In FIG. 6, the illustration of the adjustment motor 412 is omitted.

  The adjustment motor 412 is fixed to the lower end of the base 405. The adjustment motor 412 includes an output shaft that protrudes downward. A pulley 412A (see FIG. 9) is fixed to the output shaft of the adjustment motor 412. The screw shaft 414 is provided at a position shifted to the right rear with respect to the output shaft of the adjustment motor 412. The screw shaft 414 is rotatable around an axis extending in the vertical direction. A pulley 414A (see FIG. 9) is fixed to the lower end of the screw shaft 414. The connection belt 415 is annular and spans between a pulley 412A fixed to the output shaft of the adjustment motor 412 and a pulley 414A fixed to the screw shaft 414. The upper end of the screw shaft 414 is rotatably supported by the base 405. The screw shaft 414 includes a screw portion on the outer peripheral surface. The screw portion is formed in a spiral shape along the axis of the screw shaft 414 above the connecting belt 415.

  The connection base 413 has a rectangular shape extending in the vertical direction when viewed from the front. The connection base part 413 supports the support part 420. The connection base 413 includes an insertion hole 416 (see FIG. 8). The insertion hole 416 extends in the vertical direction. The upper end portion of the insertion hole 416 is enlarged in diameter as compared with other portions of the insertion hole 416. The screw shaft 414 is inserted through the insertion hole 416. The meshing body 417 (see FIG. 9) has a cylindrical shape along the vertical direction, and is fitted into and fixed to the upper end portion of the insertion hole 416. The meshing body 417 includes a hole 417A. A screw portion is formed on the inner peripheral surface of the hole portion 417A. The screw portion is formed in a spiral shape along the center line of the hole portion 417A. The screw portion of the meshing body 417 meshes with the screw portion of the screw shaft 414.

  The power of the adjustment motor 412 is transmitted to the screw shaft 414 via the connecting belt 415, and the screw shaft 414 rotates. As the screw shaft 414 rotates, the meshing body 417 moves up and down integrally with the connection base portion 413 and the support portion 420. Therefore, the position adjustment mechanism 410 can adjust the vertical position of the support portion 420 with the driving force of the adjustment motor 412.

  As shown in FIGS. 6 to 8 and 10, the support part 420 includes an extended base part 422, a pair of rails 423, a movable base part 425, a support plate 429 (see FIG. 8), and a support member drive part 430 (see FIG. 8). , A support member 440 (see FIG. 10), and an auxiliary support mechanism 460.

  The extended base 422 has a substantially rectangular plate shape when viewed from the back, and extends to the left from the connection base 413. In the present embodiment, the extended base 422 is integral with the connection base 413. The extended base 422 includes a pair of protrusions 422A that protrude forward. The pair of protrusions 422A are arranged with a space in the left-right direction. The pair of protrusions 422A support a pair of rails 423 extending in the left-right direction. The pair of rails 423 are lined up in the vertical direction.

  The movable base 425 has a substantially rectangular box shape when viewed from the back, and extends in the left-right direction. The movable base 425 has a pair of holes through which the pair of rails 423 are inserted, and is movable in the left-right direction with respect to the pair of rails 423. In other words, the pair of rails 423 supports the movable base 425 so as to be movable in the left-right direction. That is, the connection base 413 supports the movable base 425 through the pair of rails 423 so as to be movable in the left-right direction. The movable base 425 includes an extending portion 428 on the right surface. The extending portion 428 extends in the vertical direction, and the upper end portion is above the movable base portion 425.

  The support plate 429 (see FIG. 8) is fixed to the front surface of the extending base 422 between the pair of protrusions 422A. The lower end of the support plate 429 is a plate that is bent rearward and has a thickness in the left-right direction. The support plate 429 includes a holding hole having a circular shape in a side view at the lower end. The support member drive unit 430 (see FIG. 8) supports the holding hole in a posture along the left-right direction. The support member driving unit 430 is an air cylinder. The support member driving unit 430 includes a shaft 431. The shaft 431 extends in the left-right direction and is movable in the left-right direction. The connecting plate 433 is fixed to the shaft 431 on the left side of the holding hole. The connecting plate 433 is fixed to the front surface of the movable base 425 with four fastening members. Therefore, when the shaft 431 moves left and right by driving the support member driving unit 430, the movable base 425 moves left and right along the pair of rails 423.

  As shown in FIG. 10, the support member 440 is fixed to the upper end portion of the extending portion 428. In other words, the connection base 413 (see FIG. 8) supports the support member 440 so as to be movable in the left-right direction via the pair of rails 423. The upper surface of the support member 440 is a support surface 445. The support surface 445 is on the opposite side to the discharge port 11D (see FIG. 14C) with respect to the lower cloth C1. The support surface 445 supports the lower cloth C1 from the lower side.

  The support surface 445 includes a first support surface 441 and a second support surface 442. The first support surface 441 is a plane along the transport direction, and has a rectangular shape extending in the left-right direction in plan view. The second support surface 442 is provided on the right side of the first support surface 441. The downstream end of the second support surface 442 in the transport direction is on the downstream side of the downstream end of the first support surface 441 in the transport direction. The second support surface 442 includes surfaces 442A and 442B. The surface 442A has an arc shape centered on the support shaft 26 (see FIG. 2). The surface 442A overlaps the lower roller 18 in the transport direction. The surface 442B extends forward from the front end of the surface 442A. The surface 442B is horizontal and is along the conveyance direction. The surface 442B is flush with the first support surface 441.

  The support member 440 moves left and right between the first support position (see FIG. 15B) and the second support position (see FIGS. 10, 11, and 15A) by moving the movable base 425 left and right. Move. When the support member 440 is in the first support position, the first support surface 441 supports the lower cloth C1 on the upstream side in the conveyance direction of the clamping position P (see FIG. 2). When the support member 440 is in the second support position, the second support surface 442 supports the lower cloth C1 from the upstream side in the transport direction of the sandwiching position P to the downstream side in the transport direction of the sandwich position P. When the support member 440 is in the second support position, the lower transport unit 210 is in the first retracted position (see FIG. 15A).

  The auxiliary support mechanism 460 will be described with reference to FIGS. 10 and 11. The auxiliary support mechanism 460 is a mechanism that supports the lower cloth C1 in an auxiliary manner, and is fixed to the movable base 425. Therefore, the auxiliary support mechanism 460 moves left and right together with the movable base 425 and the support member 440. The auxiliary support mechanism 460 includes a juxtaposed member driving unit 461, a connecting unit 463, a shaft member 465, and a juxtaposed member 470.

  The juxtaposed member driving unit 461 is an air cylinder. The juxtaposed member driving unit 461 is fixed to the front surface of the movable base 425. The juxtaposed member driving unit 461 includes a moving member 461A. The moving member 461A is a shaft extending in the left-right direction, and moves left and right by the driving of the juxtaposed member driving unit 461. That is, the moving member 461A is supported by the movable base 425 so as to be movable in the left-right direction. The connecting portion 463 is provided at the left end portion of the moving member 461A and extends upward. The shaft member 465 extends in the left-right direction and fixes the left end portion to the upper end portion of the connecting portion 463. That is, the shaft member 465 is fixed to the moving member 461A via the connecting portion 463. The shaft member 465 fixes the restriction plate 467 to the right end. The regulating plate 467 is a plate having a thickness in the left-right direction.

  The juxtaposed member 470 is rotatably supported by the shaft member 465. The juxtaposed member 470 includes an auxiliary support portion 475. The auxiliary support portion 475 is provided on the rear side of the shaft member 465 and on the downstream side in the transport direction with respect to the first support surface 441. The auxiliary support portion 475 has a plate shape extending in the left-right direction. The auxiliary support portion 475 is at the same vertical position as the first support surface 441. The auxiliary support portion 475 has a downstream end portion in the transport direction aligned with a downstream end portion in the transport direction of the surface 442A of the second support surface 442 in the left-right direction. The auxiliary support portion 475 includes a contact portion 475A on the lower surface. When the contact portion 475A contacts the restriction plate 467 from above, the restriction plate 467 restricts the downward rotation of the juxtaposed member 470. When the contact portion 475A contacts the restriction plate 467, the upper surface of the auxiliary support portion 475 is along the transport direction.

  When the moving member 461 </ b> A moves left and right by driving the juxtaposed member driving unit 461, the juxtaposed member 470 moves relative to the movable base 425. Therefore, the juxtaposed member 470 moves between the juxtaposed position (see FIGS. 15A and 15B) and the non-actuated position (see FIGS. 10 and 16D). When the juxtaposed member 470 is in the juxtaposed position, the auxiliary support portion 475 is aligned with the first support surface 441 in the transport direction and is close to the surface 442A from the left side. In this case, the auxiliary support part 475 can support the lower cloth C1 together with the first support surface 441 from the lower side. When the juxtaposed member 470 is in the non-actuated position, the auxiliary support portion 475 is separated from the side 442A to the left with respect to the juxtaposed position. In other words, when the juxtaposed member 470 is in the non-operating position, the auxiliary support portion 475 is separated from the second support surface 442 on the side opposite to the second support surface 442 with respect to the juxtaposed position. In this case, the juxtaposed member 470 is separated to the left from the lower cloth C1.

  The electrical configuration of the bonding apparatus 1 will be described with reference to FIG. The bonding apparatus 1 includes a control device 100. The control device 100 includes a CPU 101, a ROM 102, a RAM 103, a storage device 104, and drive circuits 105 and 106. The CPU 101 performs overall control of the operation of the bonding apparatus 1. The CPU 101 is connected to the ROM 102, the RAM 103, the storage device 104, the drive circuits 105 and 106, the switch 19, the tread board 8, and the heaters 131 and 132. The ROM 102 stores programs for executing various processes. The RAM 103 temporarily stores various information. The storage device 104 is nonvolatile and stores various setting values. The switch 19 is provided at the lower front of the head 5 (see FIG. 1). The switch 19 outputs various information corresponding to the operation of the operator to the CPU 101. The tread board 8 is provided at the lower part of the work table and is operated by the operator with his / her foot. The tread board 8 instructs the CPU 101 to start and end the bonding operation in accordance with the operator's operation.

  The drive circuit 105 drives and controls the lower transport motor 111, the upper transport motor 112, the nozzle motor 113, and the pump motor 114 based on a command from the CPU 101. The nozzle motor 113 is connected to the encoder 135. The encoder 135 detects the rotation angle phase and rotation speed of the output shaft 113A of the nozzle motor 113. The encoder 135 outputs the detection result to the CPU 101. The drive circuit 106 drives and controls the lower air cylinder 121, the upper air cylinder 122, the air cylinder 123, the support member drive unit 430, and the juxtaposed member drive unit 461 based on commands from the CPU 101. The CPU 101 controls the temperatures of the heaters 131 and 132, respectively.

  The main process will be described with reference to FIGS. 3 and 13 to 17. When the operator operates the switch 19 and inputs a main process start instruction, the CPU 101 reads a program for executing the main process stored in the ROM 102 and starts the main process.

  At the start of the main process, the bonding apparatus 1 is in an initial state (see FIG. 3). When the bonding apparatus 1 is in the initial state, the nozzle 11 is in the initial position, the lower transport unit 210 is in the first contact position, the upper transport unit 220 is in the second retracted position, and the support member 440 is in the first support position. The juxtaposed member 470 is in a non-actuated position.

  The CPU 101 determines whether or not the placement of the lower cloth C1 is completed based on the detection result of the switch 19 (S11). The operator places the lower cloth C <b> 1 on the first support plate 52 and the first support surface 441. The operator adjusts the arrangement position of the lower cloth C1 so that the downstream end of the lower cloth C1 in the transport direction is located slightly downstream from the clamping position P (see FIG. 14A). Since the upper roller 12 is in the second retracted position, the operator can easily adjust the arrangement position of the lower cloth C1. The operator does not operate the switch 19 until the placement of the lower cloth C1 is completed (S11: NO), and the CPU 101 stands by. The operator finishes the adjustment of the arrangement position of the lower cloth C1, and inputs information indicating the completion of the placement of the lower cloth C1 to the switch 19 (S11: YES).

  The CPU 101 drives and controls the nozzle motor 113 to displace the nozzle 11 from the initial position to the first facing position (see FIG. 14A) (S13). The CPU 101 acquires the detection result of the encoder 135, and stops driving the nozzle motor 113 when the nozzle 11 reaches the first facing position (S13). The CPU 101 drives the air cylinder 123 to move the urging member 123B from the separation position (see FIG. 3) to the urging position (see FIG. 5) (S15). The biasing member 123 </ b> B that has moved to the biasing position biases the nozzle 11 forward via the nozzle lever 9. The nozzle lever 9 swings slightly forward. The worm wheel 25 slightly rotates by the amount of backlash generated when the worm 24 and the worm wheel 25 are engaged. When the tooth portion of the worm wheel 25 comes into contact with the tooth portion of the worm 24, the nozzle lever 9 stops. Therefore, the bonding apparatus 1 can execute the positioning of the nozzle 11 that has moved to the first facing position.

  The CPU 101 executes height adjustment processing (S17). The height adjustment process is a process of adjusting the vertical position of the support part 420. For example, the operator inputs an instruction to raise or lower the support unit 420 to the switch 19. The CPU 101 drives and controls the adjustment motor 412 according to the instruction detected by the switch 19 to move the support unit 420 up and down. The operator operates the switch 19 so that an appropriate gap is generated between the lower cloth C1 and the discharge port 11D.

  The CPU 101 controls the lower air cylinder 121 to move the lower transport unit 210 from the first contact position (see FIG. 3) to the first retracted position (see FIG. 14A) (S19). The lower roller 18 is separated downward from the lower cloth C1.

The CPU 101 controls the support member driving unit 430 to move the support member 440 from the first support position (see FIG. 10) to the second support position (see FIG. 15A) (S21). At this time, the second support surface 442 supports the downstream end of the lower cloth C1 in the transport direction. The lower cloth C1 above the surface 442A (see FIG. 10) of the second support surface 442 is along the circumferential direction with the support shaft 26 as the center. The CPU 101 drives the air cylinder 123 to separate the urging member 123B from the urging position to the separation position (S23).

  The CPU 101 executes the tip application process (S25). The tip application process is a process for applying the adhesive Z to the downstream end of the lower cloth C1 in the transport direction. During execution of the tip coating process, the CPU 101 stops the lower transport motor 111 and the upper transport motor 112 and stops the lower transport mechanism 205 and the upper transport mechanism 70. The CPU 101 controls the nozzle motor 113 and the pump motor 114 to displace the nozzle 11 from the first facing position to the second facing position, and discharges the adhesive Z downward from the discharge port 11D (FIG. 14A). ) And (b)). The downstream end portion of the lower cloth C1 in the transport direction follows an arc shape with the support shaft 26 as the center. The nozzle lever 9 that supports the nozzle 11 swings around the support shaft 26 by driving the nozzle motor 113. That is, when the nozzle motor 113 is driven, the nozzle 11 is displaced along an arc shape with the support shaft 26 as the center. Therefore, the gap between the discharge port 11D and the upper surface of the lower cloth C1 does not change during the displacement of the nozzle 11. Therefore, even if the adhesive Z is discharged from the discharge port 11D while the nozzle 11 is displaced, the adhesive Z can be stably attached to the lower cloth C1. The CPU 101 acquires the detection result of the encoder 135. Therefore, when the nozzle 11 reaches the second facing position, the CPU 101 can stop driving the nozzle motor 113 and the pump motor 114.

  The CPU 101 drives and controls the nozzle motor 113 to displace the nozzle 11 from the second facing position to the retreat position (S27). In this case, the CPU 101 stops the lower transport motor 111, the upper transport motor 112, and the pump motor 114, and stops the lower transport mechanism 205, the upper transport mechanism 70, and the supply mechanism 45. CPU101 acquires the detection result of the encoder 135, and stops the nozzle 11 in a retreat position. The discharge port 11D of the nozzle 11 is displaced to the rear upper side of the downstream end portion in the transport direction of the lower cloth C1 (see FIG. 14C).

  The CPU 101 controls the juxtaposed member driving unit 461 to move the juxtaposed member 470 from the non-actuated position to the juxtaposed position (S28). The CPU 101 controls the support member driving unit 430 to move the support member 440 from the second support position (see FIG. 15A) to the first support position (see FIG. 15B) (S29). With the juxtaposed member 470 in the juxtaposed position, the support member 440 moves to the right. Instead of the second support surface 442, the first support surface 441 and the auxiliary support part 475 support the lower cloth C1 to which the adhesive Z is attached (see FIG. 15B).

  The CPU 101 executes height adjustment processing (S31). S31 is the same process as S17. The operator can appropriately adjust the gap between the lower cloth C1 to which the adhesive Z is attached and the discharge port 11D by adjusting the vertical position of the support portion 420.

  The CPU 101 drives and controls the nozzle motor 113 to displace the nozzle 11 from the retracted position to the first facing position (S33). In this case, the CPU 101 stops the lower transport motor 111, the upper transport motor 112, and the pump motor 114, and stops the lower transport mechanism 205, the upper transport mechanism 70, and the supply mechanism 45. When the nozzle motor 113 is driven, the nozzle 11 is displaced from the retreat position to the first facing position via the second facing position (see FIGS. 14C and 14D). The CPU 101 acquires the detection result of the encoder 135 and stops the nozzle 11 at the first facing position.

  The CPU 101 drives the air cylinder 123 to move the urging member 123B from the separation position to the urging position (S35). S35 is the same processing as S15. When the CPU 101 executes S35, the bonding apparatus 1 can position the nozzle 11 displaced to the first facing position.

  The CPU 101 controls the lower air cylinder 121 to move the lower transport unit 210 from the first retracted position (see FIG. 15B) to the first contact position (see FIG. 16C) (S37). In the course of the movement, the lower roller 18 comes into contact with the juxtaposed member 470 from below and biases it. The juxtaposed member 470 rotates upward about the shaft member 465 while supporting the lower cloth C1. The juxtaposed member 470 is spaced upward from the restriction plate 467 (see FIG. 11). With the rotation of the juxtaposed member 470, the downstream end portion in the transport direction of the lower cloth C1 to which the adhesive Z is attached is curved upward (not shown).

  The CPU 101 drives the juxtaposed member drive unit 461 to move the juxtaposed member 470 from the juxtaposed position (see FIG. 16C) to the non-actuated position (see FIG. 16D) (S39). The juxtaposed member 470 moves relative to the left with respect to the support member 440, and is separated from the lower surface of the lower cloth C1 to the left. The juxtaposed member 470 moves to the left of the lower roller 18 and then rotates downward due to its own weight. The juxtaposed member 470 stops at a rotational position where it comes into contact with the regulating plate 467 (see FIG. 11).

  Based on the detection result of the switch 19, the CPU 101 determines whether or not an instruction to start an adhesion process (S45) described later has been detected (S41). The CPU 101 waits until it detects an adhesive processing start instruction (S41: NO). The operator places the upper cloth C2 on the second support plate 53 and the nozzle 11, and superimposes the downstream end of the upper cloth C2 in the transport direction on the downstream end of the lower cloth C1 in the transport direction from above (FIG. 14). (See (d)). Since the upper conveyance unit 220 is in the second retracted position, the operator can easily place the upper cloth C2. The operator inputs an instruction to start the adhesion start process to the switch 19 after placing the upper cloth C2. The CPU 101 detects a start instruction for the bonding process (S41: YES), and moves the process to S43.

  The CPU 101 controls the upper air cylinder 122 to move the upper transport unit 220 from the second separation position (see FIG. 16D) to the second contact position (see FIG. 17) (S43). The lower roller 18 and the upper roller 12 pinch the lower cloth C1 and the upper cloth C2 to which the adhesive Z is attached from the vertical direction at the pinching position P (see FIG. 2) (S43).

  The CPU 101 drives and controls the lower transport motor 111, the upper transport motor 112, and the pump motor 114, and executes the bonding process (S45). When the operator steps on the tread board 8 after holding the lower cloth C1 with the left hand and holding the upper cloth C2 with the right hand, for example, the CPU 101 starts the bonding process (S45).

  As shown in FIG. 17, the lower roller 18 and the upper roller 12 rotate, and the lower transport mechanism 205 and the upper transport mechanism 70 transport the lower cloth C1 and the upper cloth C2 in the transport direction. Therefore, the downstream end part in the transport direction of the lower cloth C1 and the upper cloth C2 that have passed through the clamping position P adheres to each other via the adhesive Z discharged by the tip coating process. At the same time, when the pump motor 114 (see FIG. 12) is driven, the discharge port 11D discharges the adhesive Z downward. The lower conveyance mechanism 205 and the upper conveyance mechanism 70 continuously convey the lower cloth C1 and the upper cloth C2 to which the adhesive Z is attached. The lower cloth C1 and the upper cloth C2 moved to the downstream side in the transport direction from the sandwiching position P are bonded to each other through the adhesive Z. When the CPU 101 detects stoppage of the operator's stepping on the tread plate 8, the CPU 101 stops the lower conveyance motor 111 and the upper conveyance motor 112, and ends the bonding process.

  The CPU 101 executes initialization processing (S47). The CPU 101 controls the air cylinder 123 to move the urging member 123B from the urging position to the separation position, and drives and controls the nozzle motor 113 to move the nozzle 11 from the first facing position to the initial position. 122 is controlled to move the upper conveyance unit 220 from the second contact position to the second separation position. The bonding apparatus 1 returns to the initial state. The CPU 101 ends the main process.

  As described above, after the operator arranges the downstream end of the lower cloth C1 in the transport direction on the support surface 445, the CPU 101 displaces the lower cloth while displacing the nozzle 11 from the first facing position to the second facing position. The adhesive Z is discharged toward the downstream end of C1 in the transport direction (S25). The relative positions of the lower cloth C1 and the nozzle 11 change stably as the nozzle 11 is displaced. The adhesive Z adheres across the downstream end of the lower cloth C1 in the transport direction. Therefore, the bonding | adhering apparatus 1 which can adhere | attach the adhesive agent Z stably to the conveyance direction downstream end part of the lower cloth C1 conveyed can be implement | achieved.

  After moving the lower transport unit 210 to the first retracted position (S19), the CPU 101 displaces the nozzle 11 to the second facing position (S25). Therefore, the nozzle 11 that is displaced to the second facing position is unlikely to contact the lower roller 18. Since the displacement of the nozzle 11 toward the second facing position is stabilized, the bonding apparatus 1 can adhere the adhesive Z more stably to the downstream end portion in the transport direction of the transported lower cloth C1.

  When the operator places the downstream end of the lower cloth C1 in the transport direction on the lower roller 18, the lower cloth C1 is disposed on the downstream side of the clamping position P. The nozzle 11 at the second facing position is downstream of the holding position P in the transport direction. Therefore, the nozzle 11 that is displaced toward the second facing position is more likely to adhere the adhesive Z across the downstream end portion in the transport direction of the lower cloth C1.

  For example, in the case of adopting a configuration in which the nozzle 11 is displaced between the first facing position and the second facing position by moving the nozzle lever 9 linearly, the flow path of the adhesive Z from the supply mechanism 45 to the discharge port 11D. The structure which deform | transforms so that may become long is needed. In this case, the adhesive Z dissolved by the heaters 131 and 132 may solidify due to a decrease in temperature. However, in this embodiment, the nozzle 11 is displaced between the first facing position and the second facing position as the nozzle lever 9 swings around the support shaft 26 (S25, S33). Even if the nozzle 11 is displaced, the separation distance between the discharge port 11D and the supply mechanism 45 is unlikely to change. Therefore, the bonding apparatus 1 can easily keep the temperature of the discharged adhesive Z constant.

  The CPU 101 displaces the nozzle 11 displaced to the second facing position to the retreat position (S27). The retreat position is on the downstream side and the upper side with respect to the second facing position. Therefore, the nozzle 11 displaced to the retreat position becomes difficult to contact the lower cloth C1 until the displacement (S33) toward the first facing position is started. When the support member 440 is displaced from the second support position to the first support position (S29), the lower cloth C1 is difficult to contact the nozzle 11. Therefore, the support surface 445 that supports the lower cloth C <b> 1 can be stably switched from the first support surface 441 to the second support surface 442.

  After the lower conveyance unit 210 has moved to the first retracted position (S19), the support member 440 has moved to the second support position (S21), so that the second support surface 442 is replaced by the lower support surface 441 instead of the first support surface 441. The cloth C1 is supported. The downstream end of the second support surface 442 in the transport direction is on the downstream side of the downstream end of the first support surface 441 in the transport direction. Therefore, after the lower conveyance part 210 moves to the 1st retreat position, the bonding apparatus 1 can suppress that the lower cloth C1 hangs down.

  The CPU 101 moves the support member 440 from the second support position to the first support position with the juxtaposed member 470 in the juxtaposed position (S29). The first support surface 441 and the auxiliary support portion 475 of the juxtaposed member 470 support the lower cloth C1 from below instead of the second support surface 442. Therefore, the lower cloth C1 to which the adhesive Z is attached is difficult to hang down.

  When the CPU 101 moves the lower transport unit 210 from the first retracted position to the first contact position (S37), the lower roller 18 biases the juxtaposed member 470 upward. The juxtaposed member 470 rotates upward about the shaft member 465 while supporting the lower cloth C1. When the lower conveyance unit 210 moves to the first contact position, the juxtaposed member 470 continues to support the lower cloth C1. Therefore, the bonding apparatus 1 can suppress the downward sag of the lower cloth C1 to which the adhesive Z is adhered when the lower transport unit 210 is moved from the first retracted position to the first contact position.

  The bonding apparatus 1 includes a position adjustment mechanism 410. The bonding apparatus 1 can adjust the gap between the support surface 445 of the support portion 420 and the discharge port 11D of the nozzle 11 according to the thickness of the lower cloth C1. Therefore, regardless of the thickness of the lower cloth C1, the nozzle 11 can be displaced from the first facing position to the second facing position while maintaining an appropriate gap with the lower cloth C1. Therefore, the bonding apparatus 1 can stably adhere the adhesive Z to the downstream end portion in the transport direction of the lower cloth C1 regardless of the thickness of the lower cloth C1.

  As the screw shaft 414 rotates, the position adjustment mechanism 410 adjusts the vertical position of the support portion 420. The vertical position of the support portion 420 changes continuously according to the amount of rotation of the screw shaft 414. Therefore, the bonding apparatus 1 can adjust the vertical position of the support portion 420 with high accuracy.

  The speed reduction mechanism 23 includes a worm 24 and a worm wheel 25, thereby transmitting the power of the nozzle motor 113 to the worm wheel 25 at a predetermined reduction ratio. The displacement amount of the nozzle 11 with respect to the drive amount of the nozzle motor 113 becomes small. Therefore, the bonding apparatus 1 can perform fine position control of the nozzle 11 with high accuracy.

  When the CPU 101 moves the biasing member 123B from the separation position to the biasing position (S23, S35), the biasing member 123B biases the nozzle 11 forward. The bonding apparatus 1 can position the nozzle 11 at the first facing position. Therefore, the bonding apparatus 1 makes it difficult for the first opposing positions of the nozzles 11 to vary, and can accurately control the position of the nozzles 11.

  In the above description, the lower cloth C1 is an example of the first sheet of the present invention. The upper cloth C2 is an example of the second sheet of the present invention. The lower transport mechanism 205 and the upper transport mechanism 70 are examples of the transport mechanism of the present invention. The lower roller 18 is an example of a lower rotating portion of the present invention. The lower air cylinder 121 is an example of a lower conveyance driving unit of the present invention. The upper roller 12 is an example of an upper rotating portion of the present invention. The movable base 425 is an example of the first base of the present invention. The extending base 422 and the connecting base 413 are an example of the second base of the present invention. The upper air cylinder 122 is an example of an upper conveyance driving unit of the present invention. The adjustment motor 412 is an example of the motor of the present invention. The left-right direction is an example of a predetermined direction of the present invention.

  The CPU 101 that executes S25 is an example of the discharge control unit of the present invention. The CPU 101 that executes S33 is an example of a first displacement control unit of the present invention. The CPU 101 that executes S45 is an example of the discharge conveyance control unit of the present invention. The CPU 101 that executes S19 is an example of the first transport control unit of the present invention. The CPU 101 that executes S37 is an example of a second transport control unit of the present invention. The CPU 101 that executes S27 is an example of the retreat displacement control unit of the present invention. The CPU 101 that executes S21 is an example of the first movement control unit of the present invention. The CPU 101 that executes S29 is an example of the second movement control unit of the present invention. The CPU 101 that executes S28 is an example of a third movement control unit of the present invention. The CPU 101 that executes S39 is an example of a fourth movement control unit of the present invention. The CPU 101 that executes S43 is an example of a third transport control unit of the present invention. The CPU 101 that executes S17 and S31 is an example of the adjustment control unit of the present invention. The CPU 101 that executes S35 is an example of an urging control unit of the present invention. S25 is an example of the discharge control process of the present invention. S33 is an example of the first displacement control process of the present invention. S45 is an example of the discharge conveyance control process of the present invention.

  The present invention is not limited to the above embodiment. The lower conveyance unit 210 may move between the first contact position and the first retraction position by moving left and right, for example, instead of moving up and down. The lower conveyance unit 210 may be fixed at the first contact position instead of being movable between the first contact position and the first retracted position. In this case, the bonding apparatus 1 does not include the lower air cylinder 121, and the CPU 101 does not have to execute S19 and S37. The lower conveyance unit 210 may include a belt instead of including the lower roller 18. In this case, the pulley may be fixed by the lower rotating shaft 211, and the other pulley may be rotatably provided at a position shifted from the lower rotating shaft 211 in the transport direction. The belt is stretched over two pulleys. Therefore, the belt can rotate around the lower rotation shaft 211 by the driving force of the lower transport motor 111. The second facing position may be the same transport direction position as the sandwiching position P, instead of being the position downstream of the sandwiching position P, or the position upstream of the sandwiching position P in the transport direction. It may be.

  The nozzle 11 may be displaced by linear movement instead of being displaced by swinging around the support shaft 26 of the nozzle lever 9. In this case, a configuration is adopted in which the flow path of the adhesive Z becomes longer as the nozzle lever 9 moves. The bonding apparatus 1 may not include the speed reduction mechanism 23. In this case, a configuration in which a gear fixed to the output shaft 113A arranged in a posture along the left-right direction and another gear fixed to the support shaft 26 mesh with each other may be employed. The urging member 123B in the urging position may urge the nozzle 11 directly forward instead of urging the nozzle 11 forward via the nozzle lever 9. The bonding apparatus 1 may not include the air cylinder 123 and the urging member 123B. In this case, the CPU 101 does not have to execute S23 and S35.

  After the lower transport unit 210 has moved to the first retracted position (S19) and before the support member 440 has moved from the second support position to the first support position (S29), the CPU 101 can perform any timing. The juxtaposed member 470 may be moved from the non-actuated position to the juxtaposed position (S28). The juxtaposed member driving unit 461 may be a solenoid or a motor instead of an air cylinder. The juxtaposed member 470 may not be rotatably supported by the shaft member 465. In this case, if the juxtaposed member 470 is at a position shifted from the lower roller 18 in the left-right direction, the lower roller 18 of the lower transport unit 210 at the first contact position contacts the juxtaposed member 470 at the juxtaposed position. do not do. The bonding apparatus 1 may not include the juxtaposed member 470 and the juxtaposed member drive unit 461. In this case, the CPU 101 does not have to execute S39. The nozzle 11 may not be displaceable to the retreat position. In this case, the CPU 101 does not have to execute S27 and S33. The support member driving unit 430 may be a solenoid or a motor instead of an air cylinder. The support member 440 does not include the first support surface 441 and the second support surface 442 and may not be movable left and right. In this case, the bonding apparatus 1 does not include the support member driving unit 430, and the CPU 101 does not have to execute S21 and S29.

  The support unit 420 may move up and down by driving an air cylinder or a solenoid, for example, instead of moving the support unit 420 up and down by driving the adjustment motor 412. In this case, in the CPU 101, the support unit 420 moves up and down between the upper end position and the lower end position of the movable range. If the nozzle 11 is stationary at any one of the initial position, the first facing position, the second facing position, and the retreat position, the CPU 101 adjusts the vertical position of the support section 420 (S17, S31). ) May be executed at an arbitrary timing.

  The output shaft of the adjustment motor 412 may be provided at a position coaxial with the screw shaft 414, for example, instead of being provided at a position shifted from the screw shaft 414 in the transport direction and the left-right direction. In this case, for example, the adjustment motor 412 may be provided below the screw shaft 414, and the output shaft of the adjustment motor 412 may protrude upward. The bonding apparatus 1 may not include the connection belt 415.

DESCRIPTION OF SYMBOLS 1 Adhesive device 9 Nozzle lever 11 Nozzle 11D Discharge port 12 Upper roller 18 Lower roller 24 Worm 25 Warm wheel 26 Support shaft 45 Supply mechanism 70 Upper conveyance mechanism 72 Upper rotating shaft 101 CPU
113 Nozzle motor 121 Lower air cylinder 122 Upper air cylinder 123 Air cylinder 123A Rod 123B Energizing member 205 Lower transport mechanism 210 Lower transport section 220 Upper transport section 410 Position adjustment mechanism 412 Adjustment motor 413 Connection base 414 Screw shaft 417 Engagement body 417A Hole Part 420 support part 422 extended base part 425 movable base part 430 support member drive part 440 support member 441 first support surface 442 second support surface 442A surface 461 parallel member drive part 461A moving member 465 shaft member 470 parallel member C1 lower cloth C2 Top cloth P Clamping position Z Adhesive

Claims (13)

A support portion for supporting the first sheet from below;
A nozzle provided on the opposite side to the support portion with respect to the first sheet, and having a discharge port for discharging an adhesive toward the first sheet;
A supply mechanism for supplying the adhesive to the nozzle;
A transport mechanism for transporting the first sheet with the adhesive attached to the nozzle downstream of the first sheet, and a second sheet superimposed on the first sheet from above;
In a bonding apparatus comprising:
A nozzle motor connected to the nozzle,
The nozzle includes a first facing position where the discharge port faces the first sheet, and a second facing position where the discharge port faces the first sheet downstream of the first facing position in the transport direction. Is displaced by the driving force of the nozzle motor,
Discharge that drives and controls the supply mechanism and the nozzle motor while the transport mechanism is stopped, displaces the nozzle from the first facing position to the second facing position, and discharges the adhesive from the discharge port. A control unit;
After the discharge of the adhesive by the discharge controller, the nozzle motor is driven and controlled with the transport mechanism and the supply mechanism being stopped to displace the nozzle from the second facing position to the first facing position. A first displacement control unit;
After the displacement of the nozzle to the first facing position by the first displacement control unit, the conveyance mechanism and the supply mechanism are driven and controlled to discharge the adhesive from the discharge port and the first sheet and the And a discharge conveyance control unit that conveys the second sheet with the second sheet interposed therebetween. The transport mechanism is
A lower conveying portion having a lower rotating shaft extending in a predetermined direction orthogonal to the conveying direction and the vertical direction, and a lower rotating portion supported by the lower rotating shaft;
The lower conveyance unit is arranged between a first contact position where the lower rotation unit contacts the first sheet from below and a first retraction position where the lower rotation unit retracts downward with respect to the first contact position. A lower conveyance drive unit that moves with
An upper rotating shaft extending in parallel with the lower rotating shaft on the upper side with respect to the second sheet, and the lower rotating portion of the lower conveying portion supported by the upper rotating shaft and in the first contact position And an upper conveying part having an upper rotating part sandwiching the first sheet and the second sheet,
Before discharge by the discharge controller, a first transfer control unit that controls the lower transfer drive unit to move the lower transfer unit from the first contact position to the first retracted position;
After the displacement of the nozzle by the discharge control unit and before the transfer by the discharge transfer control unit, the lower transfer drive unit is controlled to move the lower transfer unit from the first retracted position to the first contact position. The bonding apparatus according to claim 1, further comprising: a second conveyance control unit that performs the following operation.   The nozzle in the second facing position is characterized in that the lower rotating part and the upper rotating part are located between the first sheet and the second sheet, or on the downstream side in the transport direction from the holding position. The bonding apparatus according to claim 2. A nozzle lever that extends in the vertical direction and supports the nozzle at a lower end;
A support shaft extending in the predetermined direction and connected to the upper end of the nozzle lever to support the nozzle lever in a swingable manner;
The nozzle motor is connected to the support shaft and rotates the support shaft,
The nozzle lever swings around the support shaft by the rotation of the support shaft,
4. The bonding apparatus according to claim 2, wherein the nozzle is displaced between the first facing position and the second facing position by swinging the nozzle lever. The nozzle is displaceable between a retreat position on the downstream side in the transport direction from the second facing position and the first facing position,
When the nozzle is in the retracted position, the vertical position of the discharge port is higher than when the nozzle is in the first opposing position and the second opposing position,
After the discharge of the adhesive by the discharge controller and before the movement of the nozzle by the first displacement controller, the nozzle motor is driven and controlled with the transport mechanism and the supply mechanism stopped. A retreat displacement control unit that displaces the retreat position from the second facing position to the retreat position,
The first displacement control unit is configured to displace the nozzle to the first facing position via the second facing position after the retreating displacement controlling unit has displaced the nozzle to the retracted position. The bonding apparatus according to claim 4. The support part is
A support member having a first support surface along the transport direction, and a second support surface including an arcuate surface centered on the support shaft and provided on one side of the predetermined direction with respect to the first support surface. When,
A base for supporting the support member in a movable manner in the predetermined direction;
A support member driving unit fixed to the base, connected to the support member and moving the support member in the predetermined direction;
The end of the second support surface on the downstream side in the transport direction is on the downstream side of the end of the first support surface on the downstream side in the transport direction,
The support member is a first support position where the first support surface supports the first sheet, and the other side of the predetermined direction with respect to the first support position, and the second support surface is the first sheet Move between the second support position to support
After the movement of the lower conveyance unit by the first conveyance control unit and before ejection by the ejection control unit, the support member driving unit is controlled to move the support member from the first support position to the second support position. A first movement control unit that moves to
After the ejection by the ejection control unit and before the movement of the lower transport unit by the second transport control unit, the support member driving unit is controlled to move the support member from the second support position to the first support position. The bonding apparatus according to claim 4, further comprising: a second movement control unit that moves to the position. The base is
A first base to which the support member is fixed;
A first base portion movably supported in the predetermined direction, and a second base portion to which the support member drive portion is fixed;
The support part is
A juxtaposed member that is supported by the first base, is located downstream of the first support surface in the transport direction, and is aligned with the end of the second support surface on the downstream side of the transport direction, in the predetermined direction;
A juxtaposed member driving unit fixed to the first base and connected to the juxtaposed member to move the juxtaposed member in the predetermined direction with respect to the first base;
The juxtaposed member is located between the juxtaposed position aligned with the first support surface in the transport direction, and a non-operating position away from the second support surface on the opposite side of the juxtaposed position to the second support surface. Move and
The second movement control unit moves the support member of the support unit in which the parallel member is in the parallel position,
After the movement by the first conveyance control unit and before the movement of the lower conveyance unit by the second conveyance control unit, the juxtaposition member driving unit is controlled to move the juxtaposition member from the inoperative position to the parallel operation unit. A third movement control unit that moves to the installation position;
After the movement of the lower conveyance unit by the second conveyance control unit and before conveyance by the discharge conveyance control unit, the juxtaposition member driving unit is controlled to move the juxtaposition member from the juxtaposition position to the inoperative state. The bonding apparatus according to claim 6, further comprising a fourth movement control unit that moves to a position. The transport mechanism is
The upper conveyance unit is arranged between a second contact position where the upper rotation unit contacts the second sheet from above and a second retraction position where the upper rotation unit retreats upward with respect to the second contact position. It has an upper transport drive that moves,
The support part is
A moving member supported by the first base so as to be movable in the predetermined direction;
A shaft member that is fixed to the moving member on the upstream side in the transport direction with respect to the lower rotating portion, supports the juxtaposed member in a rotatable manner, and extends in the predetermined direction;
When the lower transport unit is moved by the second transport control unit, the lower rotating unit comes into contact with the juxtaposed member from below,
After the movement of the juxtaposed member by the fourth movement control unit and before conveyance by the discharge conveyance control unit, the upper conveyance driving unit is controlled, and the upper rotation unit is moved from the second retracted position to the second contact position. The bonding apparatus according to claim 7, further comprising a third conveyance control unit that moves to a position.   The bonding apparatus according to claim 1, further comprising a position adjustment mechanism that adjusts a vertical position of the support portion. A position adjustment mechanism that adjusts the vertical position of the support portion is provided.
A motor,
A screw shaft that is rotatable about an axis extending in the vertical direction and is coupled to the motor;
An engagement body fixed to the base portion and having a hole portion through which the screw shaft is inserted and meshed;
The adjustment control part which adjusts the position in the up-and-down direction of the support part by controlling the motor and moving the meshing body up and down is provided. The bonding apparatus as described. A worm rotatable about an axis extending in the transport direction and coupled to the nozzle motor;
The bonding apparatus according to claim 4, further comprising: a worm wheel that is fixed to the support shaft and meshes with the worm. An urging member that is movable between an urging position that urges the nozzle in the first facing position in the transport direction and a separation position that is separated from the nozzle with respect to the urging position;
An air cylinder having a rod connected to the biasing member,
The urging unit moves the urging member from the separation position to the urging position by controlling the air cylinder after the displacement of the nozzle by the first displacement control unit and before conveyance by the discharge conveyance control unit. The bonding apparatus according to claim 11, further comprising a control unit. A support portion that supports the first sheet from below, a nozzle that is provided on the opposite side of the support portion with respect to the first sheet, and has a discharge port that discharges an adhesive toward the first sheet; and A supply mechanism for supplying the adhesive to the nozzle; and the first sheet on which the adhesive has adhered to the nozzle on the downstream side in the conveyance direction of the first sheet; A transport mechanism for transporting the second sheet in between,
The nozzle includes a first facing position where the discharge port faces the first sheet, and a second facing position where the discharge port faces the first sheet downstream of the first facing position in the transport direction. A control method of the bonding apparatus that is displaced by a driving force of a nozzle motor connected to the nozzle,
Discharge that drives and controls the supply mechanism and the nozzle motor while the transport mechanism is stopped, displaces the nozzle from the first facing position to the second facing position, and discharges the adhesive from the discharge port. Control process;
After discharging the adhesive in the discharge control step, the nozzle motor is driven and controlled with the transport mechanism and the supply mechanism stopped, and the nozzle is displaced from the second facing position to the first facing position. A first displacement control step;
After the nozzle is displaced to the first facing position in the first displacement control step, the conveyance mechanism and the supply mechanism are driven and controlled to discharge the adhesive from the discharge port, and the first sheet and the first sheet. A control method comprising: a discharge conveyance control process for conveying with two sheets sandwiched therebetween.

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