JP6859681B2 - Adhesive device and control method of the adhesive device - Google Patents

Description

The present invention relates to an adhesive device and a method for controlling the adhesive device.

An adhesive device for adhering two overlapping sheets is known. The adhesive device disclosed in Patent Document 1 superimposes and adheres an upper cloth and a lower cloth, which are examples of sheets. The bonding device includes a belt, a nozzle, and a first roller. The belt is placed below the nozzle. The transport portion of the belt, which extends in the front-rear direction, supports the lower cloth. The transport site extends to the rear side of the nozzle. The nozzle is provided with a discharge port at the lower end for discharging the adhesive. The adhesive device sandwiches the lower cloth between the transport portion and the discharge port. The first roller is provided on the upper side of the rear end portion of the transport portion. As the transport portion of the first roller and the belt, the upper cloth arranged on the rear side of the nozzle via the upper part of the nozzle and the lower cloth to which the adhesive is attached are overlapped and sandwiched from above and below. The bonding device bonds the upper cloth and the lower cloth sandwiched from above and below while transporting them backward.

Japanese Unexamined Patent Publication No. 2010-222140

At the start of the bonding operation, the bonding device first discharges the adhesive to the downstream end of the lower cloth in the transport direction. In this case, the belt presses the downstream end portion of the lower cloth in front of the first roller in the transport direction against the discharge port. The discharge port discharges the adhesive. The belt conveys the end portion of the lower cloth to which the adhesive is attached on the downstream side in the conveying direction 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 slip against the lower cloth. As a result, excess adhesive may adhere to the rear end of the lower cloth. On the other hand, if the force of the belt pressing 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 of the lower cloth will be insufficient.

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

The adhesive device of the first aspect of the present invention is provided with a support portion that supports the first sheet from below and a side opposite to the support portion with respect to the first sheet, and an adhesive is provided toward 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 on the downstream side of the first sheet in the transport direction with respect to the nozzle. In an adhesive device including a transport mechanism that sandwiches and transports a second sheet that is superposed on the first sheet from above, a nozzle motor that connects to the nozzle is provided, and the transport mechanism is the first A first facing position in which the discharge port faces the first sheet and a downstream side in the transport direction from the sandwiching position, which is on the upstream side in the transport direction from the sandwiching position where the one sheet and the second sheet are sandwiched. The discharge port is displaced by the driving force of the nozzle motor between the discharge port and the second facing position facing the first sheet on the downstream side in the transport direction from the first facing position, and the transport mechanism is moved to the first. The supply mechanism and the nozzle motor are driven and controlled in a state where the sheet and the second sheet are stopped without being sandwiched, the nozzle is displaced from the first facing position to the second facing position, and the bonding is performed from the discharge port. After the discharge control unit that discharges the agent and the adhesive is discharged by the discharge control unit, the nozzle motor is driven and controlled with the transport mechanism and the supply mechanism stopped, and the nozzle is moved to the second facing position. After the first displacement control unit that displaces from the first facing position and the first displacement control unit displaces the nozzle to the first facing position, the transport mechanism and the supply mechanism are driven and controlled to perform the above. It is characterized by including a discharge / transport control unit that discharges the adhesive from a discharge port and conveys the adhesive with the first sheet and the second sheet sandwiched between them.

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

In the bonding device, the transport mechanism includes a lower transport portion having a lower rotating shaft extending in a predetermined direction orthogonal to the transport direction and a vertical direction, a lower rotating portion supported by the lower rotating shaft, and the lower rotating portion. The transport portion is moved between the first contact position where the lower rotating portion contacts the first sheet from below and the first retracting position where the lower rotating portion retracts downward with respect to the first contact position. The lower transfer drive unit, the upper rotation axis extending parallel to the lower rotation axis on the upper side of the second seat, and the lower transfer unit supported by the upper rotation shaft and at the first contact position. An upper transport unit having a first sheet and an upper rotary portion that sandwiches the second sheet is provided between the lower rotary portion and the lower rotary portion, and the lower transport drive unit is controlled before discharge by the discharge control unit. The first transport control unit that moves the lower transport 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 transport by the discharge transport control unit. A second transport control unit that controls the lower transport drive unit to move the lower transport unit from the first retracted position to the first contact position may be provided. 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 displaced to the second facing position is unlikely to come into contact with the lower rotating portion. Since the displacement of the nozzle toward the second facing position is stabilized, the adhesive device can more stably adhere the adhesive to the downstream end portion of the sheet to be conveyed.

In the adhesive device, the nozzle at the second facing position is located at a holding position where the lower rotating portion and the upper rotating portion sandwich the first sheet and the second sheet, or on the downstream side in the transport direction from the holding position. May be. The nozzle that is displaced toward the second facing position can adhere the adhesive to the downstream end of the first sheet.

In the bonding device, a nozzle lever extending in the vertical direction and supporting the nozzle at the lower end portion and a support extending in the predetermined direction and connected to the upper end portion of the nozzle lever to swingably support the nozzle lever. A shaft is provided, the nozzle motor is connected to the support shaft to rotate the support shaft, the nozzle lever swings around the support shaft due to the rotation of the support shaft, and the nozzle has a shaft. The swing of the nozzle lever may cause displacement 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 adhesive device tends to keep the temperature of the discharged adhesive constant.

In the bonding device, the nozzle can be displaced between the retreat position on the downstream side in the transport direction from the second facing position and the first facing position, and when the nozzle is in the retreating position, The vertical position of the discharge port is higher than when the nozzle is in the first facing position and the second facing position, and after the adhesive is discharged by the discharge control unit, and the first displacement. Before the movement of the nozzle by the control unit, the retreat displacement control unit that drives and controls the nozzle motor with the transport mechanism and the supply mechanism stopped to displace 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 displaces the nozzle to the retreating position. .. The nozzle displaced to the retreat position by the retreat displacement control unit is less likely to come into contact with the first sheet until it is displaced by the first displacement control unit.

In the adhesive device, the support portion has a first support surface along the transport direction and an arcuate surface provided on one side of the first support surface in the predetermined direction and centered on the support shaft. A support member having a second support surface including the support member, a base portion that movably supports the support member in the predetermined direction, and a base portion that is fixed to the base portion and connected to the support member to move the support member in the predetermined direction. The support member drive unit is provided, and the end portion of the second support surface on the downstream side in the transport direction is on the downstream side of the end portion of the first support surface on the downstream side in the transport direction, and the support member is The first support surface is on the other side of the first support position in the predetermined direction with respect to the first support position that supports the first sheet, and the second support surface supports the first sheet. By moving between the two support positions, after the lower transport unit is moved by the first transport control unit and before the discharge by the discharge control unit, the support member drive unit is controlled to move the support member to the support member. The support member drive unit has a first movement control unit that moves from the first support position to the second support position, after discharge by the discharge control unit, and before the movement of the lower transport unit by the second transport control unit. May be provided with a second movement control unit that moves the support member from the second support position to the first 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 of the second support surface is on the downstream side in the transport direction with respect to the downstream end of the first support surface. Therefore, after the lower transport unit has moved to the first retracted position, the adhesive device can prevent the first sheet from sagging downward.

In the adhesive device, the base portion includes a first base portion to which the support member is fixed and a second base portion to support the first base portion so as to be movable in the predetermined direction and to fix the support member drive portion. The support portion is supported by the first base portion, is located on the downstream side in the transport direction from the first support surface, and is located at the end portion of the second support surface on the downstream side in the transport direction and in the predetermined direction. The parallel member is provided with a parallel member that is lined up and a parallel member drive unit that is fixed to the first base portion, is connected to the parallel member, and moves the parallel member in the predetermined direction with respect to the first base portion. The member moves between the first support surface and the side-by-side position arranged in the transport direction, and the non-operating position away from the second support surface on the side opposite to the second support surface with respect to the side-by-side position. In the second movement control unit, the parallel member moves the support member of the support unit in the parallel position, and after the movement by the first transfer control unit and by the second transfer control unit. Before the movement of the lower transport unit, the third movement control unit that controls the parallel member drive unit to move the parallel member from the non-operating position to the parallel position, and the second transport control unit. A fourth movement in which the parallel member driving unit is controlled to move the parallel member from the parallel position to the non-operating position after the movement of the lower transport unit and before the transfer by the discharge transport control unit. It may be provided with a control unit. When the second movement control unit moves the support member to the first support position, the first support surface and the side-by-side member support the first sheet. Therefore, the first sheet to which the adhesive adhered by the discharge of the discharge control unit is unlikely to drip downward.

In the adhesive device, the transport mechanism has a second contact position in which the upper rotating portion contacts the second sheet from above and the upper rotating portion upward with respect to the second contact position. The upper transport drive unit that moves between the second retracted position and the retracted second retracted position is provided, and the support portion includes a moving member that is movably supported in the predetermined direction by the first base portion and the lower rotating portion. When the lower transport unit is moved by the second transport control unit, it is provided with a shaft member that is fixed to the moving member on the upstream side in the transport direction, rotatably supports the parallel member, and extends in the predetermined direction. The lower rotating unit contacts the parallel member from below, and controls the upper transfer drive unit after the parallel member is moved by the fourth movement control unit and before the transfer is performed by the discharge transfer control unit. A third transport control unit that moves the upper rotating unit from the second retracted position to the second contact position may be provided. When the second transport control unit moves the lower transport unit to the first contact position, the lower rotating unit urges the parallel members in the parallel position to the upper side. The juxtaposed members in the juxtaposed position rotate around the shaft member while supporting the first sheet. The parallel member continues to support the first sheet even when the lower carrier moves to the first contact position. Therefore, the adhesive device can suppress the downward sagging of the first sheet to which the adhesive is attached when the lower transport portion is moved from the first retracted position to the first contact position.

The adhesive device may include a position adjusting mechanism for adjusting the vertical position of the support portion. The adhesive device can adjust the gap between the support and the nozzle according to the thickness of the first sheet. Therefore, the adhesive device 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 adhesive device includes a position adjusting mechanism for adjusting the vertical position of the support portion, and the position adjusting mechanism is rotatable about a motor and an axis extending in the vertical direction, and is a screw connected to the motor. A shaft and a meshing body fixed to the base portion and having a hole through which the screw shaft is inserted and meshed are provided, and the motor is controlled to move the meshing body up and down to move the meshing body up and down in the vertical direction of the support portion. An adjustment control unit for adjusting the position may be provided. The position of the support portion continuously changes according to the amount of rotation of the screw shaft. Therefore, the adhesive device can accurately adjust the vertical position of the support portion.

The adhesive device may include a worm that is rotatable about an axis extending in the transport direction and 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 device can accurately control the fine position of the nozzle.

In the adhesive device, an urging member that can move between an urging position that urges the nozzle at the first facing position in the transport direction and a separation position that separates the nozzle from the urging position. And an air cylinder having a rod connected to the urging member, the air cylinder is controlled after the displacement of the nozzle by the first displacement control unit and before the transfer by the discharge transfer 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 device can accurately control the position of the nozzle.

The method for controlling the adhesive device according to the second aspect of the present invention is provided with a support portion that supports the first sheet from below and a side opposite to the support portion with respect to the first sheet, and is directed toward 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 adheres on the downstream side in the transport direction of the first sheet. The nozzle is provided with a transfer mechanism that sandwiches and conveys one sheet and a second sheet that is overlapped with the first sheet from above, and the nozzle is from a holding position where the transfer mechanism sandwiches the first sheet and the second sheet. Also on the upstream side in the transport direction and the discharge port faces the first sheet, and on the downstream side in the transport direction from the pinching position and on the downstream side in the transport direction from the first facing position. A method for controlling an adhesive device in which the discharge port is displaced from a second facing position facing the first sheet by a driving force of a nozzle motor connected to the nozzle, wherein the transport mechanism is the first. The supply mechanism and the nozzle motor are driven and controlled in a state where the sheet and the second sheet are stopped without being sandwiched, the nozzle is displaced from the first facing position to the second facing position, and the bonding is performed from the discharge port. After the adhesive is discharged in the discharge control step of discharging the agent and the discharge control step, the nozzle motor is driven and controlled with the transport mechanism and the supply mechanism stopped, and the nozzle is placed in the second facing position. After the nozzle is displaced to the first facing position in the first displacement control step of shifting to the first facing position and the first displacement control step, the transport mechanism and the supply mechanism are driven and controlled to discharge the nozzle. It is characterized by including a discharge / transport control step of discharging the adhesive from an outlet and transporting the first sheet and the second sheet with the second sheet sandwiched between them. According to the above configuration, the same effect as that of the first aspect is obtained.

The perspective view of the adhesive device 1. The perspective view which shows the internal structure of the adhesive apparatus 1. The left side view of the adhesive device 1. The perspective view of the nozzle lever swing mechanism 22. The perspective view of the air cylinder 123. The perspective view of the lower transport mechanism 205. Another perspective view of the lower transport mechanism 205. The perspective view of the lower cloth support mechanism 400. The rear view of the position adjustment mechanism 410. Perspective view of the support portion 420. The perspective view of the auxiliary support mechanism 460. The block diagram which shows the electrical structure of the adhesive device 1. Flow diagram of main processing. Explanatory drawing which shows the flow which a nozzle 11 is displaced. Explanatory drawing which shows the flow of movement of a support member 440, a lower roller 18, and a parallel member 470. FIG. 15 is an explanatory view showing a flow of movement of the support member 440, the lower roller 18, and the parallel member 470 following FIG. The left side view of the lower transport mechanism 205 and the upper transport mechanism 70 that sandwich and transport the lower cloth C1 and the upper cloth C2.

An embodiment of the present invention will be described. In the following explanation, the left and right, front and back, and top and bottom indicated by arrows in the figure are used. The adhesive device 1 adheres two objects to be bonded with the adhesive Z. The object to be adhered is a flexible sheet, for example, a lower cloth C1 and an upper cloth C2.

The mechanical configuration of the bonding device 1 will be described with reference to FIGS. 1 to 11. As shown in FIGS. 1 to 3, the adhesive device 1 includes a pedestal portion 2, a pedestal portion 3, an arm portion 4, and a head portion 5. The pedestal portion 2 has a rectangular parallelepiped shape and is fixed to the work table. The pedestal portion 3 is columnar and extends upward from the upper surface of the pedestal portion 2. The arm portion 4 extends to the left from the upper end portion of the pedestal portion 3. The head portion 5 projects to the left from the left end portion of the arm portion 4.

The pedestal portion 2 supports the mounting member 31. The mounting member 31 includes a fixing portion 32 and a holding portion 33. The fixing portion 32 has a rectangular plate shape and is fixed to the left surface of the pedestal portion 2. The holding portion 33 has a substantially box shape extending to the left from the lower end of the fixing portion 32 and opening upward and to the left.

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, to the right, and to the rear. The upper end of the cover 501 is the first support plate 52. The first support plate 52 is formed in a flat shape and supports the lower cloth C1 (see FIG. 14) from below. The fixing portion 32 supports the second support plate 53. The second support plate 53 is a plate material that curves and extends diagonally downward and rearward. The second support plate 53 supports the upper cloth C2 (see FIG. 14D) from below.

The holding portion 33 holds the lower air cylinder 121. The lower air cylinder 121 is provided with a movable portion 121A (see FIG. 3) on the upper side. The movable portion 121A moves in the vertical direction as the lower air cylinder 121 is driven. The movable portion 121A fixes the fixing portion 34 to the upper end portion. The fixing portion 34 has a rectangular plate shape and extends substantially parallel to the horizontal plane. The fixing portion 34 fixes the holding portion 35 on the upper side. The holding portion 35 has a triangular shape when viewed from the left side. The rear side of the upper surface of the holding portion 35 is inclined upward.

The holding portion 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 drive mechanism 15. The lower transport unit 210 includes a lower feed arm 7, a lower rotating shaft 211, and a lower roller 18. The lower feed arm 7 has a box shape extending in the vertical direction and an arm shape in which the upper side is inclined forward. The lower feed arm 7 supports the lower rotation shaft 211 at the tip end portion. The lower rotation shaft 211 extends in the left-right direction and projects to the left from the lower feed arm 7. The lower roller 18 is supported by the left end of the lower rotating shaft 211.

The lower roller drive mechanism 15 includes a lower transfer motor 111, a first pulley, a timing belt, and a second pulley. The lower transfer motor 111 is fixed to the holding portion 35 on the right side of the lower feed arm 7. The first pulley is fixed to the output shaft of the lower transfer 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 transfer 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 drive mechanism 15 rotates the lower roller 18 by the power of the lower conveyor motor 111.

The lower transport unit 210 moves up and down between the first contact position (see FIGS. 3 and 16 (c)) and the first retract position (see FIG. 15 (a)) by driving the lower air cylinder 121. When the lower transport portion 210 is in the first contact position, the lower roller 18 contacts the lower cloth C1 from the lower side. When the lower transport portion 210 is in the first retracted position, the lower roller 18 retracts downward with respect to the first contact position and separates the lower roller 18 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 a support arm 16, an upper transport portion 220, an upper air cylinder 122 (see FIG. 12), and an upper roller drive mechanism 21. The support arm 16 has a substantially L-shaped side view that extends downward from the rear end of the head 5 and further projects forward. The support arm 16 supports the shaft portion 5B at the front end portion. The shaft portion 5B extends in the left-right direction.

The upper transport unit 220 includes an upper feed arm 6, an upper rotating shaft 72, and an 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 an arm shape in which the front side is inclined 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 by the front end of the upper feed arm 6. The upper rotation shaft 72 extends in the left-right direction and projects to the left from the upper feed arm 6. The upper roller 12 is supported by 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 5B by driving the upper air cylinder 122.

The upper roller drive mechanism 21 includes an upper transfer motor 112, a first pulley 21A, a first timing belt 21B, a second pulley, a second timing belt, and a third pulley. The upper transfer motor 112 is fixed to the upper left portion on the rear side of the head 5. The first pulley 21A is fixed to the output shaft 112A of the upper transfer motor 112. The second pulley is provided inside the upper feed arm 6. The first timing belt 21B bridges 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 transfer 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 drive mechanism 21 rotates the upper roller 12 by the power of the upper transfer motor 112.

When the upper feed arm 6 swings around the shaft portion 5B, the upper transport portion 220 moves between the second contact position (see FIG. 2) and the second retract position (see FIG. 3). When the upper transport portion 220 is in the second contact position, the upper roller 12 comes into contact with the upper cloth C2 from above. The upper roller 12 in the second retracting 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 transport portion 210 at the first contact position and the upper roller 12 of the upper transport portion 220 at the second contact position sandwich the lower cloth C1 and the upper cloth C2 which are vertically overlapped with each other from the vertical direction. Hereinafter, the position in the transport direction in which the lower roller 18 and the upper roller 12 sandwich the lower cloth C1 and the upper cloth C2 is referred to as a holding position P (see FIG. 2). [Inayama 1] The upper transport mechanism 70 and the lower transport mechanism 205 sandwich and transport the lower cloth C1 to which the adhesive Z is attached and the upper cloth C2 that overlaps the lower cloth C1 from above at the holding position P. Hereinafter, the direction in which the upper roller 12 and the lower roller 18 superimpose and convey the lower cloth C1 and the upper cloth C2 is referred to as a conveying direction. The transport direction is from the front to the rear (see arrow S in FIG. 2).

As shown in FIGS. 2 and 4, the head portion 5 includes a nozzle lever swing mechanism 22. The nozzle lever swing mechanism 22 includes a nozzle motor 113, a 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. The output shaft 113A 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 about an axis extending in the transport direction. The support shaft 26 has a tubular 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 open. The worm wheel 25 is fixed to the support shaft 26 and meshes with the upper end portion of the worm 24. The worm 24 rotates by driving the nozzle motor 113, so that the worm wheel 25 rotates 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 extension 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 portion 10 is supported by the lower end of the nozzle lever 9. The nozzle support portion 10 projects downward from the lower end of the nozzle lever 9. The nozzle 11 has a rod shape protruding to the right 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 port 11D is 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 retreat position (see FIG. 14 (c)) due to the swing of the nozzle lever 9. When the nozzle 11 is in the initial position, the discharge port 11D is 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 holding position P in the transport direction. The retreat position is lower than the initial position in the vertical direction. Before the nozzle 11 is displaced to the retreat position, the adhesive device 1 displaces the lower transport unit 210 and the upper transport unit 220 to the first retracted position and the second retracted position, respectively (see FIG. 14 (c)).

When the nozzle 11 is displaced between the initial position and the retreat position, the nozzle 11 passes through a first facing position (see FIGS. 2 and 14 (a)) and a second facing position (see FIG. 14 (b)). Both the first facing position and the second facing position are lower than the initial position and the retreating 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 pinching position P, and the second facing position is a position on the downstream side in the transport direction from the pinching position P. [Inayama 2]

As shown in FIG. 5, the head portion 5 includes an air cylinder 123. The air cylinder 123 is fixed on the lower side of the nozzle motor 113 in a posture in which the front side is inclined downward. The air cylinder 123 includes a rod 123A and an urging 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 comes into contact with the rear surface of the nozzle lever 9 to urge the nozzle lever 9 forward. Therefore, the urging member 123B in the urging position urges the nozzle 11 in the first facing position to the upstream side in the transport direction. The urging member 123B at the separated position is separated behind the rear wall 29A of the nozzle cover 29. In FIG. 5, the rear wall 29A of the nozzle cover 29 is not shown.

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 substantially the center of the head 5, and includes a cover 41A (see FIG. 1), an accommodating portion 41B, a lid 41C, and a heater 131 (see FIG. 12). The cover 41A has a substantially rectangular parallelepiped box shape and extends upward from the upper surface of the head 5. The cover 41A opens in the vertical direction. The accommodating portion 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 portion 41B opens upward. The accommodating portion 41B detachably accommodates a cartridge (not shown) inside. The lid 41C is detachably provided on the upper side of the accommodating portion 41B to open and close 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 housed in the housing section 41B. The adhesive Z is melted and liquefied by heating 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). The output shaft 114A of the pump motor 114 extends to the left 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 via the gear 46A. The gear pump 46 sucks the adhesive Z from the cartridge housed in the housing section 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, the inside of the support shaft 26, the inside of the nozzle lever 9, the inside of the nozzle support portion 10, and the inside of the nozzle 11 and reaches the discharge port 11D. The nozzle lever 9 is provided with a heater 132 (see FIG. 12) in the vicinity of the internal flow path. The heat of the heater 132 is conducted to the nozzle 11 via the nozzle support portion 10. The heater 132 heats the adhesive Z that flows 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 housed in the housing portion 41B. The adhesive Z melted 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 adhesive device 1 includes a lower cloth support mechanism 400. The lower cloth support mechanism 400 is provided on the upstream side of the lower transport mechanism 205 in the transport direction and is fixed to the pedestal portion 2 (see FIG. 1). The lower cloth support mechanism 400 includes a base 405, a position adjusting mechanism 410, and a support portion 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 in front view, and is fixed to the left surface of the pedestal portion 2. The base 405 supports the position adjusting mechanism 410. The position adjusting mechanism 410 adjusts the vertical position of the support portion 420. The position adjusting mechanism 410 includes an adjusting motor 412, a screw shaft 414, a connecting belt 415 (see FIG. 9), a connecting base 413, and a mating body 417 (see FIG. 9). Note that in FIG. 6, the adjustment motor 412 is not shown.

The adjustment motor 412 is fixed to the lower end of the base 405. The adjusting motor 412 includes an output shaft that projects 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 about an axis extending in the vertical direction. The lower end of the screw shaft 414 fixes the pulley 414A (see FIG. 9). The connecting belt 415 is annular and bridges the pulley 412A fixed to the output shaft of the adjusting motor 412 and the 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 is provided with a screw portion on the outer peripheral surface. The screw portion is formed spirally above the connecting belt 415 along the axis of the screw shaft 414.

The connecting base 413 has a rectangular shape extending in the vertical direction when viewed from the front. The connecting base 413 supports the support 420. The connecting base 413 includes an insertion hole 416 (see FIG. 8). The insertion hole 416 extends in the vertical direction. The upper end of the insertion hole 416 has a larger diameter than the other parts of the insertion hole 416. A screw shaft 414 is inserted into the insertion hole 416. The meshing body 417 (see FIG. 9) has a tubular shape along the vertical direction, and is fitted 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 adjusting 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 connecting base portion 413 and the support portion 420. Therefore, the position adjusting mechanism 410 can adjust the vertical position of the support portion 420 by the driving force of the adjusting motor 412.

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

The extension base 422 has a substantially rectangular plate shape in the rear view, and extends to the left from the connection base 413. In this embodiment, the extension base 422 is integrated with the connecting base 413. The extension base 422 includes a pair of protrusions 422A that project forward. The pair of protruding portions 422A are arranged with a space in the left-right direction. The pair of protrusions 422A supports a pair of rails 423 extending in the left-right direction. The pair of rails 423 are lined up with a space in the vertical direction.

The movable base 425 has a substantially rectangular box shape in the rear view 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 can move in the left-right direction with respect to the pair of rails 423. In other words, the pair of rails 423 support the movable base 425 so as to be movable in the left-right direction. That is, the connecting base 413 supports the movable base 425 movably in the left-right direction via the pair of rails 423. The movable base 425 includes an extension 428 on the right side. The extension 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 extension 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 is provided with a holding hole having a circular side view at the lower end. The support member drive unit 430 (see FIG. 8) is supported by the holding holes in a posture along the left-right direction. The support member drive unit 430 is an air cylinder. The support member drive unit 430 includes a shaft 431. The shaft 431 extends in the left-right direction and can move 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 the drive of the support member drive unit 430, the movable base portion 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 extension portion 428. In other words, the connecting base 413 (see FIG. 8) movably supports the support member 440 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 of the lower cloth C1 from the discharge port 11D (see FIG. 14C). The support surface 445 supports the lower cloth C1 from below.

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 a plan view. The second support surface 442 is provided on the right side of the first support surface 441. The end portion of the second support surface 442 on the downstream side in the transport direction is on the downstream side of the end portion of the first support surface 441 on the downstream side 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 follows the transport 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. 15 (b)) and the second support position (see FIGS. 10, 11, and 15 (a)) 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 transport direction of the holding 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 pinch position P to the downstream side in the transport direction of the pinch position P. When the support member 440 is in the second support position, the lower transport portion 210 is in the first retract 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 for auxiliaryly supporting the lower cloth C1 and is fixed to the movable base portion 425. Therefore, the auxiliary support mechanism 460 moves left and right together with the movable base portion 425 and the support member 440. The auxiliary support mechanism 460 includes a parallel member driving unit 461, a connecting portion 463, a shaft member 465, and a parallel member 470.

The parallel member drive unit 461 is an air cylinder. The parallel member drive unit 461 is fixed to the front surface of the movable base portion 425. The parallel 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-right by driving the parallel member driving unit 461. That is, the moving member 461A is supported by the movable base portion 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 regulation plate 467 to the right end. The regulation plate 467 has a plate shape having a thickness in the left-right direction.

The parallel member 470 is rotatably supported by the shaft member 465. The parallel 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 located at substantially the same vertical position as the first support surface 441. In the auxiliary support portion 475, the downstream end portion in the transport direction is aligned with the 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 is provided with a contact portion 475A on the lower surface. When the contact portion 475A comes into contact with the regulation plate 467 from above, the regulation plate 467 restricts the downward rotation of the parallel member 470. When the contact portion 475A abuts on the regulation plate 467, the upper surface of the auxiliary support portion 475 follows the transport direction.

Since the moving member 461A moves left and right by being driven by the parallel member driving unit 461, the parallel member 470 moves left and right relative to the movable base portion 425. Therefore, the juxtaposed member 470 moves between the juxtaposed position (see FIGS. 15 (a) and 15 (b)) and the non-operating position (see FIGS. 10 and 16 (d)). When the parallel member 470 is in the parallel 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 portion 475 can support the lower cloth C1 from the lower side together with the first support surface 441. When the parallel member 470 is in the non-operating position, the auxiliary support portion 475 is separated from the surface 442A to the left side with respect to the parallel position. In other words, when the parallel 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 parallel position. In this case, the parallel member 470 is separated from the lower cloth C1 to the left.

The electrical configuration of the bonding device 1 will be described with reference to FIG. The bonding device 1 includes a control device 100. The control device 100 includes a CPU 101, a ROM 102, a RAM 103, a storage device 104, and drive circuits 105 and 106. The CPU 101 controls the operation of the adhesive device 1 in an integrated manner. 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 plate 8, and the heaters 131 and 132. The ROM 102 stores a program that executes various processes. The RAM 103 temporarily stores various types of information. The storage device 104 is non-volatile and stores various set values and the like. The switch 19 is provided at the lower part of the front surface of the head 5 (see FIG. 1). The switch 19 outputs various information according to the operation of the operator to the CPU 101. The tread plate 8 is provided at the lower part of the work table and is operated by the operator with his / her feet. The tread plate 8 instructs the CPU 101 to start and end the bonding operation according to the operation of the operator.

The drive circuit 105 drives and controls the lower transfer motor 111, the upper transfer motor 112, the nozzle motor 113, and the pump motor 114, respectively, 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 the 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 parallel member drive unit 461, respectively, based on a command 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 the start instruction of the main process, the CPU 101 reads the 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 device 1 is in the initial state (see FIG. 3). When the bonding device 1 is in the initial state, the nozzle 11 is in the initial position, the lower transport portion 210 is in the first contact position, the upper transport portion 220 is in the second retract position, and the support member 440 is in the first support position. The parallel member 470 is in the non-operating position.

Based on the detection result of the switch 19, the CPU 101 determines whether or not the placement of the lower cloth C1 is completed (S11). The operator places the lower cloth C1 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 of the holding 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 (S11: NO) until the placement of the lower cloth C1 is completed, and the CPU 101 stands by. The operator finishes adjusting the arrangement position of the lower cloth C1 and inputs the 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 when the nozzle 11 reaches the first facing position, drives and stops the nozzle motor 113 (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 urging member 123B that has moved to the urging position urges the nozzle 11 forward via the nozzle lever 9. The nozzle lever 9 swings slightly forward. The worm wheel 25 rotates slightly due to the backlash generated when the worm 24 and the worm wheel 25 mesh with each other. When the tooth portion of the worm wheel 25 comes into contact with the tooth portion of the worm 24, the nozzle lever 9 comes to rest. Therefore, the adhesive device 1 can perform positioning of the nozzle 11 that has moved to the first facing position.

The CPU 101 executes the height adjustment process (S17). The height adjustment process is a process for adjusting the vertical position of the support portion 420. For example, the operator inputs an instruction to raise or lower the support portion 420 to the switch 19. The CPU 101 drives and controls the adjustment motor 412 in response to the instruction detected by the switch 19, and moves the support portion 420 up and down. The operator operates the switch 19 so that an appropriate gap is formed 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. [Inayama 3]

The CPU 101 controls the support member drive 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 portion 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 centered on the support shaft 26. 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 coating process (S25). The tip coating process is a process of applying the adhesive Z to the downstream end of the upper surface of the lower cloth C1 in the transport direction. During the execution of the tip coating process, the CPU 101 stops the lower transfer motor 111 and the upper transfer motor 112, and puts the lower transfer mechanism 205 and the upper transfer mechanism 70 in a stopped state. The CPU 101 drives and 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. 14 (a)). ), (B)) [Inayama 4]. The downstream end of the lower cloth C1 in the transport direction follows an arc shape centered on the support shaft 26. 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 centered on the support shaft 26. 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 adhered 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 drive and stop 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 retreating position (S27). In this case, the CPU 101 stops the lower transfer motor 111, the upper transfer motor 112, and the pump motor 114, and puts the lower transfer mechanism 205, the upper transfer mechanism 70, and the supply mechanism 45 in a stopped state. The CPU 101 stops the nozzle 11 at the retreat position by acquiring the detection result of the encoder 135. The discharge port 11D of the nozzle 11 is displaced to the rear and upper side of the downstream end of the lower cloth C1 in the transport direction (see FIG. 14 (c)).

The CPU 101 controls the parallel member driving unit 461 to move the parallel member 470 from the non-operating position to the parallel member 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 parallel member 470 in the parallel 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 portion 475 support the lower cloth C1 to which the adhesive Z is attached (see FIG. 15B).

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

The CPU 101 drives and controls the nozzle motor 113 to displace the nozzle 11 from the retreating position to the first facing position (S33). In this case, the CPU 101 stops the lower transfer motor 111, the upper transfer motor 112, and the pump motor 114, and puts the lower transfer mechanism 205, the upper transfer mechanism 70, and the supply mechanism 45 in a stopped state. When the nozzle motor 113 is driven, the nozzle 11 is displaced from the retreating 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 process as S15. When the CPU 101 executes S35, the adhesive device 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 process of the movement, the lower roller 18 comes into contact with the parallel member 470 from below and urges it. The parallel member 470 rotates upward around the shaft member 465 while supporting the lower cloth C1. The parallel member 470 is separated upward from the regulation plate 467 (see FIG. 11). As the parallel member 470 rotates, the downstream end of the lower cloth C1 to which the adhesive Z adheres is curved upward (not shown).

The CPU 101 drives the parallel member driving unit 461 to move the parallel member 470 from the parallel position (see FIG. 16C) to the non-operating position (see FIG. 16D) (S39). The parallel member 470 moves relative to the support member 440 to the left and is separated from the lower surface of the lower cloth C1 to the left. The parallel member 470 moves to the left of the lower roller 18 and then rotates downward due to its own weight. The parallel member 470 stops at a rotation position in contact with the regulation plate 467 (see FIG. 11).

Based on the detection result of the switch 19, the CPU 101 determines whether or not the start instruction of the bonding process (S45) described later has been detected (S41). The CPU 101 waits until it detects an instruction to start the bonding process (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 on the downstream end of the lower cloth C1 from above on the downstream end of the lower cloth C1 in the transport direction (FIG. 14). (D)). Since the upper transport unit 220 is in the second retracted position, the operator can easily place the upper cloth C2. After placing the upper cloth C2, the operator inputs an instruction to start the bonding start process to the switch 19. The CPU 101 detects the instruction to start the bonding process (S41: YES), and shifts 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 sandwich the lower cloth C1 and the upper cloth C2 to which the adhesive Z is attached from above and below at the holding position P (see FIG. 2) (S43).

The CPU 101 drives and controls the lower transfer motor 111, the upper transfer motor 112, and the pump motor 114 to execute the bonding process (S45). When the operator steps on the tread plate 8 after holding the lower cloth C1 with his left hand and the upper cloth C2 with his right hand, 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 lower cloth C1 and the upper cloth C2 that have passed through the holding position P are adhered to each other via the adhesive Z discharged by the tip coating process. At the same time, the pump motor 114 (see FIG. 12) is driven, so that the discharge port 11D discharges the adhesive Z downward. The lower transport mechanism 205 and the upper transport mechanism 70 continuously transport 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 that have moved downstream from the holding position P in the transport direction are adhered to each other via the adhesive Z. When the CPU 101 detects that the operator has stopped stepping on the tread plate 8, it stops the lower transfer motor 111 and the upper transfer motor 112, and ends the bonding process.

The CPU 101 executes the initialization process (S47). The CPU 101 controls the air cylinder 123 to move the urging member 123B from the urging position to the remote position, drives and controls the nozzle motor 113 to move the nozzle 11 from the first facing position to the initial position, and moves the upper air cylinder. The 122 is controlled to move the upper transport unit 220 from the second contact position to the second separation position. The bonding device 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 nozzle 11 from the first facing position to the second facing position while shifting the lower cloth. 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 with the displacement of the nozzle 11. The adhesive Z adheres to the downstream end of the lower cloth C1 in the transport direction. Therefore, it is possible to realize an adhesive device 1 capable of stably adhering the adhesive Z to the downstream end portion of the lower cloth C1 to be conveyed in the conveying direction.

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 come into contact with the lower roller 18. Since the displacement of the nozzle 11 toward the second facing position is stabilized, the adhesive device 1 can more stably adhere the adhesive Z to the downstream end portion of the lower cloth C1 to be conveyed in the conveying direction.

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

For example, when adopting a configuration in which the nozzle 11 is displaced between the first facing position and the second facing position by linearly moving the nozzle lever 9, the flow path of the adhesive Z from the supply mechanism 45 to the discharge port 11D is adopted. It is necessary to have a configuration that deforms so that In this case, the adhesive Z melted by the heaters 131 and 132 may solidify as the temperature decreases. However, in the present embodiment, the nozzle lever 9 swings around the support shaft 26, so that the nozzle 11 is displaced between the first facing position and the second facing position (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 adhesive device 1 can easily keep the temperature of the adhesive Z to be discharged constant.

The CPU 101 displaces the nozzle 11 displaced to the second facing position to the retreating position (S27). The retreat position is downstream and above the second facing position. Therefore, the nozzle 11 displaced to the retreating position is less likely to come into contact with 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 unlikely to come into contact with the nozzle 11. Therefore, the support surface 445 that supports the lower cloth C1 can be stably switched from the first support surface 441 to the second support surface 442.

After the lower transport portion 210 moves to the first retracted position (S19), the support member 440 moves to the second support position (S21), so that the second support surface 442 is lowered instead of the first support surface 441. Supports cloth C1. The end portion of the second support surface 442 on the downstream side in the transport direction is on the downstream side of the end portion of the first support surface 441 on the downstream side in the transport direction. Therefore, after the lower transport unit 210 has moved to the first retracted position, the adhesive device 1 can prevent the lower cloth C1 from hanging downward.

The CPU 101 moves the support member 440 from the second support position to the first support position while the parallel member 470 is in the parallel position (S29). The first support surface 441 and the auxiliary support portion 475 of the parallel 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 does not easily 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 urges the parallel member 470 upward. The parallel member 470 rotates upward around the shaft member 465 while supporting the lower cloth C1. Even when the lower transport portion 210 moves to the first contact position, the parallel member 470 continues to support the lower cloth C1. Therefore, the adhesive device 1 can suppress the downward sagging of the lower cloth C1 to which the adhesive Z is attached when the lower transport portion 210 is moved from the first retracted position to the first contact position.

The bonding device 1 includes a position adjusting mechanism 410. The adhesive device 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 adhesive device 1 can stably adhere the adhesive Z to the downstream end portion of the lower cloth C1 in the transport direction regardless of the thickness of the lower cloth C1.

By rotating the screw shaft 414, the position adjusting 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 adhesive device 1 can accurately adjust the vertical position of the support portion 420.

The speed reduction mechanism 23 includes the worm 24 and the worm wheel 25, so that the power of the nozzle motor 113 is transmitted 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 device 1 can accurately control the fine position of the nozzle 11.

When the CPU 101 moves the urging member 123B from the separation position to the urging position (S23, S35), the urging member 123B urges the nozzle 11 forward. The bonding device 1 can position the nozzle 11 at the first facing position. Therefore, the adhesive device 1 makes it difficult for the first facing position of the nozzle 11 to vary, and can accurately control the position of the nozzle 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 the lower rotating portion of the present invention. The lower air cylinder 121 is an example of the lower transfer drive unit of the present invention. The upper roller 12 is an example of the upper rotating portion of the present invention. The movable base 425 is an example of the first base of the present invention. The extension base 422 and the connection base 413 are examples of the second base of the present invention. The upper air cylinder 122 is an example of the upper transport drive 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 the 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 the first displacement control unit of the present invention. The CPU 101 that executes S45 is an example of the discharge transfer control unit of the present invention. The CPU 101 that executes S19 is an example of the first transfer control unit of the present invention. The CPU 101 that executes S37 is an example of the second transfer 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 the third movement control unit of the present invention. The CPU 101 that executes S39 is an example of the fourth movement control unit of the present invention. The CPU 101 that executes S43 is an example of the third transfer 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 the 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 step of the present invention. S45 is an example of the discharge transfer control process of the present invention.

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

The nozzle 11 may be displaced by swinging around the support shaft 26 of the nozzle lever 9, but the nozzle lever 9 may be displaced by linear movement. 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 adhesive device 1 does not have to include the speed reduction mechanism 23. In this case, a configuration may be adopted 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. 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 device 1 does not have to include the air cylinder 123 and the urging member 123B. In that 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 has an arbitrary timing. The parallel member 470 may be moved from the non-operating position to the parallel position (S28). The juxtaposed member drive unit 461 may be a solenoid or a motor instead of an air cylinder. The parallel member 470 does not have to be rotatably supported by the shaft member 465. In this case, if the parallel member 470 is located at a position deviated from the lower roller 18 in the left-right direction, the lower roller 18 of the lower transport portion 210 at the first contact position comes into contact with the parallel member 470 at the parallel position. do not. The adhesive device 1 does not have to include the parallel member 470 and the parallel member drive unit 461. In that case, the CPU 101 does not have to execute S39. The nozzle 11 does not have to be displaceable in the retreat position. In that case, the CPU 101 does not have to execute S27 and S33. The support member drive unit 430 may be a solenoid or a motor instead of an air cylinder. The support member 440 does not have a first support surface 441 and a second support surface 442, and may not be movable left and right. In this case, the adhesive device 1 does not include the support member driving unit 430, and the CPU 101 does not have to execute S21 and S29.

Instead of moving the support portion 420 up and down by driving the adjustment motor 412, the support portion 420 may move up and down by driving, for example, an air cylinder or a solenoid. In this case, the CPU 101 causes the support portion 420 to move 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 of the initial position, the first facing position, the second facing position, and the retreating position, the CPU 101 adjusts the vertical position of the support portion 420 (S17, S31). ) May be executed at any time.

The output shaft of the adjustment motor 412 may be provided, for example, at a position coaxial with the screw shaft 414, instead of being provided at a position deviated from the screw shaft 414 in the transport direction and the left-right direction. In this case, for example, the adjusting motor 412 may be provided below the screw shaft 414, and the output shaft of the adjusting motor 412 may project upward. The bonding device 1 does not have to include the connecting belt 415.

1 Adhesive device 9 Nozzle lever 11 Nozzle 11D Discharge port 12 Upper roller 18 Lower roller 24 Worm 25 Worm wheel 26 Support shaft 45 Supply mechanism 70 Upper transport mechanism 72 Upper rotation shaft 101 CPU
113 Nozzle motor 121 Lower air cylinder 122 Upper air cylinder 123 Air cylinder 123A Rod 123B Biasing member 205 Lower transfer mechanism 210 Lower transfer part 220 Upper transfer part 410 Position adjustment mechanism 412 Adjustment motor 413 Connection base 414 Screw shaft 417 Engagement 417A Hole Part 420 Support part 422 Extension 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 Upper cloth P Holding position Z Adhesive

Claims (13)

A support part that supports the first sheet from below,
A nozzle provided on the side opposite 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 that supplies the adhesive to the nozzle,
A transport mechanism that sandwiches and transports the first sheet to which the adhesive is attached and the second sheet that is superposed on the first sheet from above on the downstream side in the transport direction of the first sheet with respect to the nozzle.
In an adhesive device equipped with
A nozzle motor connected to the nozzle is provided.
The nozzles are the first facing position where the transport mechanism is on the upstream side in the transport direction from the sandwiching position where the first sheet and the second sheet are sandwiched, and the discharge port faces the first sheet, and the sandwiching position. With the driving force of the nozzle motor, the discharge port is on the downstream side in the transport direction and on the downstream side in the transport direction from the first facing position with the second facing position facing the first sheet. Displace and
With the transport mechanism stopped without sandwiching the first sheet and the second sheet, the supply mechanism and the nozzle motor are driven and controlled to displace the nozzle from the first facing position to the second facing position. And a discharge control unit that discharges the adhesive from the discharge port,
After the adhesive is discharged by the discharge control unit, the nozzle motor is driven and controlled with the transport mechanism and the supply mechanism stopped to displace the nozzle from the second facing position to the first facing position. First displacement control unit and
After the displacement of the nozzle to the first facing position by the first displacement control unit, the transport mechanism and the supply mechanism are driven and controlled to discharge the adhesive from the discharge port and the first sheet and the said. An adhesive device characterized by being equipped with a discharge transfer control unit that transfers the second sheet across the sandwich. The transport mechanism
A lower transport portion having a lower rotation shaft extending in a predetermined direction orthogonal to the transport direction and a vertical direction, and a lower rotation portion supported by the lower rotation shaft.
Between the first contact position where the lower rotating portion contacts the first sheet from below and the first retracting position where the lower rotating portion retracts downward with respect to the first contact position. The lower transport drive unit that moves with
An upper rotating shaft extending parallel to the lower rotating shaft on the upper side of the second sheet, and the lower rotating portion of the lower transporting portion supported by the upper rotating shaft and at the first contact position. An upper transport portion having an upper rotating portion that sandwiches the first sheet and the second sheet is provided between the first sheet.
A first transport control unit that controls the lower transport drive unit to move the lower transport unit from the first contact position to the first evacuation position before discharge by the discharge control unit.
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 adhesive device according to claim 1, further comprising a second transport control unit. The nozzle at the second facing position is characterized in that the lower rotating portion and the upper rotating portion are sandwiched between the first sheet and the second sheet or on the downstream side in the transport direction with respect to the sandwiching position. The adhesive device according to claim 2. A nozzle lever that extends in the vertical direction and supports the nozzle at the lower end,
A support shaft that extends in a predetermined direction and is connected to the upper end of the nozzle lever to swingably support the nozzle lever is provided.
The nozzle motor is connected to the support shaft to rotate the support shaft.
The nozzle lever swings around the support shaft by rotation of the support shaft.
The adhesive device according to claim 2 or 3, wherein the nozzle is displaced between the first facing position and the second facing position by swinging the nozzle lever. The nozzle can be displaced between the 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 retreat position, the vertical position of the discharge port is higher than when the nozzle is in the first facing position and the second facing position.
After the adhesive is discharged by the discharge control unit and before the nozzle is moved by the first displacement control unit, the nozzle motor is driven and controlled with the transport mechanism and the supply mechanism stopped to control the nozzle. Is provided with a retreat displacement control unit that displaces from the second facing position to the retreat position.
The first displacement control unit is characterized in that, after the retreat displacement control unit displaces the nozzle to the retreat position, the nozzle is displaced to the first facing position via the second facing position. The adhesive device according to claim 4. The support portion
A support member having a first support surface along the transport direction and a second support surface provided on one side of the first support surface in the predetermined direction and including an arcuate surface centered on the support shaft. When,
A base that movably supports the support member in the predetermined direction,
A support member drive unit that is fixed to the base portion, connected to the support member, and moves the support member in the predetermined direction is provided.
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 has a first support position in which the first support surface supports the first sheet and the other side in the predetermined direction with respect to the first support position, and the second support surface is the first sheet. Move between and support the second support position,
After the lower transport unit is moved by the first transport control unit and before discharge by the discharge control unit, the support member drive unit is controlled to move the support member from the first support position to the second support position. The first movement control unit that moves to
After the discharge by the discharge control unit and before the movement of the lower transport unit by the second transfer control unit, the support member drive unit is controlled to move the support member from the second support position to the first support position. The adhesive device according to claim 4 or 5, further comprising a second movement control unit that moves to. The base is
The first base to which the support member is fixed and
The first base portion is movably supported in the predetermined direction, and the second base portion to which the support member driving portion is fixed is provided.
The support portion
A parallel member supported by the first base portion, located on the downstream side in the transport direction from the first support surface, and aligned with the end portion of the second support surface on the downstream side in the transport direction and in the predetermined direction.
It is provided with a parallel member driving unit that is fixed to the first base portion, is connected to the parallel member, and moves the parallel member in the predetermined direction with respect to the first base portion.
The juxtaposed member is located between a juxtaposed position aligned with the first support surface and the transport direction and a non-operating position separated from the second support surface on the side opposite to the second support surface with respect to the juxtaposed position. Move and
In the second movement control unit, the parallel member moves the support member of the support portion in which the parallel member is in the parallel position.
After the movement by the first transfer control unit and before the movement of the lower transfer unit by the second transfer control unit, the parallel member drive unit is controlled to move the parallel member from the non-operating position to the parallel member. The third movement control unit that moves to the installation position,
After the lower transfer unit is moved by the second transfer control unit and before the transfer is performed by the discharge transfer control unit, the parallel member drive unit is controlled to move the parallel member from the parallel position to the non-operation. The adhesive device according to claim 6, further comprising a fourth movement control unit that moves to a position. The transport mechanism
Between the second contact position where the upper rotating portion contacts the second sheet from above and the second retracting position where the upper rotating portion retracts upward with respect to the second contact position. Equipped with a moving upper transport drive unit
The support portion
A moving member movably supported in the predetermined direction by the first base,
It is provided with a shaft member that is fixed to the moving member on the upstream side in the transport direction from the lower rotating portion, rotatably supports the parallel member, 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 parallel member from below.
After the parallel member is moved by the fourth movement control unit and before the transfer by the discharge transfer control unit, the upper transfer drive unit is controlled, and the upper rotation unit is brought into contact with the second contact from the second retracted position. The adhesive device according to claim 7, further comprising a third transfer control unit that moves to a position. The adhesive device according to any one of claims 1 to 8, further comprising a position adjusting mechanism for adjusting the vertical position of the support portion. The position adjusting mechanism is provided with a position adjusting mechanism for adjusting the vertical position of the support portion.
With the motor
A screw shaft that can rotate around the axis extending in the vertical direction and is connected to the motor,
Provided with a mating body fixed to the base and having a hole through which the screw shaft is inserted and meshed.
One of claims 6 to 8, further comprising an adjustment control unit that controls the motor and adjusts the position of the support portion in the vertical direction by moving the meshed body up and down. The described adhesive device. A worm that is rotatable around an axis extending in the transport direction and is connected to the nozzle motor,
The adhesive device according to any one of claims 4 to 8, further comprising a worm wheel that is fixed to the support shaft and meshes with the worm. An urging member that can move between an urging position that urges the nozzle at the first facing position in the transport direction and a separation position that separates the nozzle from the nozzle with respect to the urging position.
An air cylinder having a rod connected to the urging member is provided.
After the displacement of the nozzle by the first displacement control unit and before the transfer by the discharge transfer control unit, the air cylinder is controlled to move the urging member from the separation position to the urging position. The adhesive device 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 side opposite to the support portion with respect to the first sheet and has a discharge port that discharges an adhesive toward the first sheet, and the nozzle. The supply mechanism for supplying the adhesive to the nozzle and the first sheet to which the adhesive is attached are overlapped on the first sheet from above on the downstream side in the transport direction of the first sheet with respect to the nozzle. Equipped with a transport mechanism that sandwiches and transports the second sheet,
The nozzles are the first facing position where the transport mechanism is on the upstream side in the transport direction from the sandwiching position where the first sheet and the second sheet are sandwiched, and the discharge port faces the first sheet, and the sandwiching position. nozzle motor for connecting the second opposed position in which the discharge port at the downstream side than the first opposed position to a said downstream side is opposed to said first sheet, said nozzle than It is a control method of the adhesive device that is displaced by the driving force of
With the transport mechanism stopped without sandwiching the first sheet and the second sheet, the supply mechanism and the nozzle motor are driven and controlled to displace the nozzle from the first facing position to the second facing position. In addition, a discharge control step of discharging the adhesive from the discharge port and
After the adhesive is discharged in the discharge control step, the nozzle motor is driven and controlled with the transport mechanism and the supply mechanism stopped to displace the nozzle from the second facing position to the first facing position. First displacement control process and
After the nozzle is displaced to the first facing position in the first displacement control step, the transport 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. (Ii) A method for controlling an adhesive device, which comprises a discharge / transport control process for sandwiching and transporting a sheet.

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