CN212065822U - Bonding device - Google Patents

Abstract

The utility model relates to a bonding device. The bonding device includes a conveying section, a nozzle, a supply section, a first roller, a first drive section, a first support section, and a guide section. The first roller is disposed upstream of the nozzle in the conveying direction so as to be rotatable about an axis extending parallel to the conveying direction. The first support portion is located on the upstream side in the conveying direction of the first roller, and supports the first sheet from the lower side. The guide portion is positioned between the first roller and the first support portion in the conveying direction, an upstream portion of the guide portion in the conveying direction is positioned below a downstream portion of the guide portion in the conveying direction, the guide portion has a surface that supports the first sheet from below, and the guide portion guides the first sheet from the first support portion to an outer periphery of the first roller along the surface. In the case where the first sheet has the stepped portion, the first sheet can be guided from the first supporting portion to the outer periphery of the first roller by the guide portion. The adhesive is prevented from being unevenly applied and the adhesive quality is prevented from being reduced.

Description

Bonding device

Technical Field

The utility model relates to a bonding device.

Background

There is an adhesive bonding apparatus which bonds two sheets to each other by means of an adhesive. The bonding apparatus described in jp-a-2018-90918 includes a nozzle, a conveying unit, a first roller, and a second roller. The nozzle is positioned between the first sheet and the second sheet, and applies the adhesive to the first sheet. The conveying section conveys the first sheet and the second sheet, to which the adhesive has been applied by the nozzle, in the conveying direction while pressing the first sheet and the second sheet together at the pressing position so as to overlap each other. The first roller moves the first sheet in a specific direction orthogonal to the transport direction and the vertical direction on the upstream side in the transport direction of the pressing position. The second roller is opposed to the first roller from above, and the first sheet is prevented from floating from the first roller by the second roller coming into contact with the upper surface of the first sheet.

In the case where the first sheet has a stepped portion, there is a possibility that the side surface of the first roller of the bonding device may come into contact with the stepped portion. In this case, there is a possibility that the side surface of the first roller restricts the movement of the stepped portion. In this case, since the first sheet extends between the position where the stepped portion contacts the first roller and the pressing position, the application state of the adhesive is not uniform, and the adhesion quality is degraded.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a bonding apparatus in which, even when a first sheet has a stepped portion, the coating state of an adhesive is not uneven, and the decrease in bonding quality is suppressed.

The bonding apparatus according to claim 1 comprises: a conveying unit that conveys a first sheet and a second sheet along a conveying direction intersecting the vertical direction while pressing the first sheet and the second sheet together via an adhesive so that the first sheet and the second sheet overlap each other; a nozzle having a discharge port capable of discharging the adhesive to the first sheet, the nozzle being disposed upstream of the conveying portion in the conveying direction and between the first sheet and the second sheet in the vertical direction; a supply unit configured to supply the adhesive to the nozzle; a first roller that is disposed on an upstream side of the nozzle in the conveying direction so as to be rotatable about an axis extending parallel to the conveying direction, an outer periphery of the first roller being in contact with the first sheet from below, the first roller moving the first sheet in a specific direction orthogonal to the conveying direction and the vertical direction; and a first driving unit connected to the first roller, wherein the bonding apparatus conveys the first sheet and the second sheet by pressing them against each other by the conveying unit while discharging the adhesive from the discharge port by the supply unit and applying the adhesive to a specific end portion of the first sheet on one side in the specific direction, and wherein the first driving unit rotates the first roller to move the first sheet in the specific direction, the bonding apparatus comprising: a first support portion that is located on an upstream side in the conveying direction of the first roller and supports the first sheet from a lower side; and a guide portion that is located between the first roller and the first support portion in the conveying direction, a portion of the guide portion that is located upstream in the conveying direction being located below a portion of the guide portion that is located downstream in the conveying direction, the guide portion having a surface that supports the first sheet from below, the guide portion guiding the first sheet along the surface from the first support portion to the outer periphery of the first roller.

In the case where the first sheet has the stepped portion, the bonding apparatus can also guide the first sheet from the first supporting portion to the outer periphery of the first roller by the guide portion. The bonding apparatus can avoid the following situations: the side surface of the first roller restricts the movement of the stepped portion, and the adhesive is unevenly applied, thereby degrading the adhesion quality.

The bonding apparatus according to claim 2 may further include: a second support portion that faces the first roller from above, the second support portion being capable of sandwiching the first sheet between the second support portion and the first roller; a second roller that is disposed between the nozzle and the first support portion in the transport direction, an outer periphery of which contacts the second sheet from above, and that is capable of nipping the second sheet between the second roller and the second support portion, and that moves the second sheet in the specific direction; a second driving unit connected to the second roller; a support mechanism having a support member that supports the first sheet from below the nozzle, the support member being provided on the downstream side in the conveyance direction of the first support portion, the support mechanism being capable of changing a vertical position of the support member; and a moving portion that supports the first roller so as to be movable in the vertical direction, wherein the guide portion is provided so as to be movable in the vertical direction together with the first roller. The bonding apparatus can appropriately adjust the gap between the first sheet and the discharge port of the nozzle even when the first sheet has a stepped portion by adjusting the vertical position of the support member in accordance with the vertical position of the first roller. The bonding device can appropriately adjust the position of the end of the second sheet with respect to the end of the first sheet by using the first roller and the second roller.

The first driving portion of the bonding apparatus according to claim 3 may include a shaft portion extending parallel to the conveying direction and to which the first roller is fixed, and the guide portion may be a rotating member fixed to the shaft portion. The guide portion of the bonding apparatus can be rotated coaxially with the first roller with a relatively simple configuration.

The guide portion of the bonding apparatus according to claim 4 may be formed integrally with the first roller. The bonding apparatus can reduce the number of parts compared to the case where the guide portion and the first roller are independent of each other. The bonding device can reliably avoid the first sheet from being pinched between the guide portion and the first roller.

In the bonding apparatus according to claim 5, a vertical position of an end portion of the guide portion located on the upstream side in the transport direction may be lower than a vertical position of an upper surface of the first support portion, or may be the same as the vertical position of the upper surface of the first support portion. In the bonding apparatus, the first sheet is less likely to be caught at the upstream end of the guide portion in the conveying direction.

The first roller of the bonding apparatus according to claims 6 and 7 may have a groove extending in parallel to the conveyance direction on the outer periphery, and the length of the guide portion in the conveyance direction may be larger than the length of the groove in the conveyance direction. The bonding device can smoothly guide the first sheet from the first supporting portion to the outer periphery of the first roller, as compared with a device in which the conveying direction length of the guide portion is less than or equal to the conveying direction length of the groove.

Drawings

Fig. 1 is a front view of the bonding apparatus 1.

Fig. 2 is a left side view of the bonding apparatus 1.

Fig. 3 is a perspective view of the internal structure of the bonding apparatus 1.

Fig. 4 is an enlarged view of the left side view of the bonding apparatus 1.

Fig. 5 is a perspective view of the lower transport device 50 without the support plate sections 51.

Fig. 6 is a plan view of the lower transport device 50 without the support plate sections 51.

Fig. 7 is a left side view of the first driving portion 80.

Fig. 8 is a perspective view of the first driving portion 80.

Fig. 9 is an explanatory diagram of the process of adjusting the gap K by the gap adjusting section 77.

Fig. 10 is a block diagram showing an electrical configuration of the bonding apparatus 1.

Fig. 11 is a flowchart of the main process.

Fig. 12 is a flowchart of the bonding process.

Fig. 13 is a flowchart of the gap adjustment process.

Fig. 14 is an enlarged view of the left side view of the bonding apparatus 1.

Fig. 15 is a left side view of the first driving portion 82.

Fig. 16 is a left side view of the first driving portion 83.

Detailed Description

The embodiments of the present invention will be described. The following description uses the left and right, front and back, and up and down indicated by arrows in the drawings. As shown in fig. 4 and 5, the bonding apparatus 1 bonds the right end portion, i.e., the lower specific end portion 8A of the lower cloth 8 and the left end portion, i.e., the upper specific end portion 6A of the upper cloth 6 together with the adhesive Z. The upper cloth 6 overlaps the lower cloth 8 from the upper side. The lower cloth 8 and the upper cloth 6 are bonded in a sheet form, and are, for example, flexible cloth. The bonding apparatus 1 conveys the upper cloth 6 and the lower cloth 8 to the rear Y. The conveying direction is the front-back direction. The horizontal direction orthogonal to the conveyance direction and the vertical direction is also referred to as a specific direction.

Referring to fig. 1 to 9, a mechanical structure of the bonding apparatus 1 will be described. The bonding apparatus 1 includes a base portion 2, a lower conveyor 50, a column portion 3, a horn portion 4, and a head portion 5. The base part 2 is rectangular and fixed to the table. The base portion 2 has a fixing surface 25 at a lower portion of the left surface. The fixing surface 25 is a left surface of the base portion 2, and is a plane parallel to the vertical direction. The lower transport device 50 is fixed to the fixing surface 25. The column part 3 is columnar and extends upward from the upper surface of the base part 2. The arm portion 4 extends leftward from the upper end of the column portion 3. The nose portion 5 protrudes leftward from the left end portion of the arm portion 4.

The lower transport device 50 operates in cooperation with an upper transport mechanism 70 described later, transports the upper cloth 6 and the lower cloth 8 rearward in a state where the upper cloth 6 and the lower cloth 8 are overlapped, and controls a specific directional position of the lower cloth 8. The lower transport device 50 extends substantially horizontally from the front side to the rear side, and has a distal end portion in the shape of an elongated tube, and the lower transport device 50 is in the shape of a "tube". As shown in fig. 5, for example, when producing a T-shirt, the cloth 200 is bonded in a tubular state with a portion on one end side of the cloth 200 formed in a tubular shape as an upper cloth 6 and a portion on the other end side of the cloth 200 as a lower cloth 8. Since the distal end portion of the lower transport device 50 has an elongated tubular shape, the operator can treat the cloth 200 with the distal end portion of the lower transport device 50.

As shown in fig. 1 to 5, the lower conveyance device 50 includes a support plate 51, a frame 55, a lower conveyance unit 60, and the like. The support plate 51 supports the frame 55 and the lower conveying unit 60. The support plate portion 51 includes a vertical plate 511, a horizontal plate 512, and a sloped portion 513. The vertical plate 511 is a plate member having a substantially rectangular shape that is long in the vertical direction when viewed from the left. The right surface of the vertical plate 511 is detachably fixed to the fixing surface 25 of the base 2. The inclined surface 513 is provided on the left surface of the vertical plate 511 except for the front portion. The inclined surface 513 has a substantially triangular shape in front view, and has an inclined surface inclined from the upper portion toward the lower left. The inclined surface part 513 allows the cloth formed by the upper cloth 6 and the lower cloth 8 stuck together to slide thereon, so that the cloth can be prevented from being caught. The horizontal plate 512 extends substantially horizontally leftward from a front portion of a lower end portion of the vertical plate 511, and the horizontal plate 512 is plate-shaped.

The frame 55 accommodates the lower conveyance unit 60. The frame 55 is fixed to the front portion of the left surface of the vertical plate 511 of the support plate 51 and to the upper surface of the horizontal plate 512 by screws. The frame 55 has a receiving portion 551 and an extending portion 552, and the frame 55 is provided with a support plate 57, a first support portion 58, and a second support portion 314. The housing 551 is a front part of the frame 55, and has an upper part opened in a substantially box shape. The storage 551 stores therein a plurality of motors 63, 68, and 72 of the lower transport unit 60, which will be described later. The extending portion 552 extends rearward from the rear portion of the receiving portion 551, has an elongated substantially square tubular shape, and has an opening 553 at a rear end portion. The upper portion of the extension 552 is open. The tip portion of the lower conveying unit 60 is housed inside the extending portion 552. The rear end of the lower conveyance section 60 is exposed from the opening 553. The support plate 57 is a plate member extending horizontally. The support plate 57 is fixed to an upper opening of the housing 551 by screws. The first support portion 58 is fixed to an upper opening of the extension portion 552 by means of screws. The first support portion 58 is a plate member having a substantially rectangular shape that is long in the front-rear direction in plan view. The rear portion of the first support portion 58 has a recess 582 that is recessed forward.

As shown in fig. 5 and 6, the second support portion 314 is a plate member having a substantially rectangular shape in plan view, and the second support portion 314 is fixed to a right rear corner portion of the upper surface 581 of the first support portion 58 so as to be rotatable about the fixed shaft portion 316. The second support portion 314 is rotatable in the horizontal direction between an operating position shown in fig. 5 and a retracted position shown in fig. 6 about the fixed shaft portion 316. The second support portion 314 in the operating position is located directly below the second roller 32 described later and directly above the lower roller 76 described later. As shown in fig. 4, the second roller 32 can sandwich the upper cloth 6 between the second roller 32 and the upper surface 315 of the second support portion 314. Lower surface 317 of second support portion 314 in the operating position is spaced apart from nozzle plate 59, which will be described later, in the vertical direction. The lower roller 76 can clamp the lower cloth 8 between the lower roller 76 and the lower surface 317 of the second support portion 314. Reflection plate 95 is provided on upper surface 315 of second support portion 314, and reflection plate 96 is provided on lower surface 317 of second support portion 314. When the second support portion 314 is in the operating position, the reflection plate 96 is positioned directly above an opening 591 provided in a nozzle plate 59 to be described later.

As shown in fig. 3 to 9, the lower conveying section 60 includes a support frame 61, a lower conveying mechanism 66, a gap adjusting section 77, a first driving section 80, a position detecting section 950, and a lower detecting section 78. The support frame 61 extends parallel to the conveyance direction, and a cross section of the support frame 61 orthogonal to the conveyance direction is substantially U-shaped and open upward. The support frame 61 has a right plate portion 611, a left plate portion 612, a bottom plate portion 613, a tip end plate 56, and a nozzle plate 59. The right plate portion 611 is a plate member having a front portion 804 provided upright in the up-down direction and a rear portion 806 extending from the front portion 804 in parallel with the conveying direction. The front portion 804 has a cam hole 631 at a lower portion, which has a rectangular shape in left view. The left plate portion 612 is provided upright in parallel with the rear portion 806 of the right plate portion 611 and extends in parallel with the conveying direction, and the left plate portion 612 has an elongated substantially rectangular shape in left view. The bottom plate portion 613 has a substantially rectangular shape in a bottom view, and the bottom plate portion 613 connects the rear portion of the rear lower end portion of the rear portion 806 of the right plate portion 611 and the rear portion of the rear lower end portion of the left plate portion 612 substantially horizontally.

The tip end plate 56 is fixed to the rear end portion of the support frame 61 and is inclined rearward and downward from the upper end portion. The top end plate 56 has a recess 561 having a rectangular notch shape at an upper end. The nozzle plate 59 is fixed to an upper rear portion of the support frame 61 and extends substantially parallel to the conveyance direction. The nozzle plate 59 is disposed directly below the discharge ports 13 of the nozzles 11, and is disposed adjacent to the first support portion 58 on the rear side of the first support portion 58 fixed to the support frame 61. The nozzle plate 59 supports the lower cloth 8 from below on the lower side of the nozzles 11. The nozzle plate 59 has an opening 591, a recess 592, and a recess 834. The opening 591 is provided right below the discharge port 13 and has a rectangular shape. The recess 592 is a recess provided at the rear end of the nozzle plate 59 and having a rectangular notch shape. The recess 834 is a rectangular notch-shaped recess provided at the front end of the nozzle plate 59. The recess 834 is opposed to the first support part 58 in the conveying direction.

As shown in fig. 3 to 5, the lower conveyance mechanism 66 cooperates with an upper conveyance mechanism 70 described later to convey the upper cloth 6 and the lower cloth 8 rearward in a state where the upper cloth 6 and the lower cloth 8 are overlapped. The lower conveyance mechanism 66 has a lower conveyance motor 63, a lower conveyance roller 64, a nozzle lower roller 65, a conveyance belt 67, and the like. The lower conveying motor 63 is fixed to the right surface of the front portion 804 of the right plate portion 611. The drive shaft of the lower conveyance motor 63 passes through the through hole 805 from the right surface of the front portion 804, protrudes leftward, and extends inward of the support frame 61. The lower transport roller 64 is rotatably supported inside the distal end portion of the support frame 61. The rotation shaft 641 of the lower conveying roller 64 extends in the left-right direction, and the lower conveying roller 64 is rotatably inserted into a hole provided in the rear portion 806 of the right plate portion 611 and a hole provided in the left plate portion 612. The lower conveying roller 64 is located immediately below the upper conveying roller 12, and can contact the upper conveying roller 12 from below. The lower transport roller 64 is located inside an opening opened by the concave portion 561 of the tip end plate 56 and the concave portion 592 of the nozzle plate 59, and the upper portion of the lower transport roller 64 protrudes above the nozzle plate 59.

The lower nozzle roller 65 is rotatably supported inside the distal end portion of the support frame 61 on the front side of the lower transport roller 64. The rotating shaft 651 of the lower nozzle roller 65 extends in the left-right direction, and is rotatably inserted into a hole portion provided in the rear portion 806 of the right plate portion 611 and a hole portion provided in the left plate portion 612. The nozzle lower roller 65 is located below the discharge port 13 at the bottom of the nozzle 11. The lower nozzle rollers 65 are located inside the opening 591 of the nozzle plate 59, and the upper ends of the lower nozzle rollers 65 protrude above the nozzle plate 59. The conveyor 67 is provided inside the support frame 61 so as to extend from the drive shaft of the lower conveyor motor 63, the rotary shaft 641, and the rotary shaft 651. The conveying belt 67 can transmit the driving force of the lower conveying motor 63 to the lower conveying roller 64 and the nozzle lower roller 65. Therefore, when the lower conveyance motor 63 is driven, the lower conveyance roller 64 and the nozzle lower roller 65 rotate together.

As shown in fig. 3 and 9, the gap adjusting unit 77 adjusts the gap K between the discharge port 13 of the nozzle 11 and the nozzle plate 59 by swinging the support frame 61 of the lower transport unit 60 about the swing shaft 62 with respect to the frame body 55 (see fig. 4). The gap adjusting part 77 has the gap adjusting motor 68, the cam plate 69, the swing shaft 62, and a spring. The gap adjustment motor 68 is provided below the lower conveyance motor 63 and is fixed inside the housing 551. The drive shaft 681 of the gap adjustment motor 68 protrudes leftward. A cam plate 69 having a substantially circular shape is fixed to a distal end portion of the drive shaft 681. The right plate portion 611 extends upward from the left side of the gap adjustment motor 68, and the upper portion of the right plate portion 611 extends rearward. The cam plate 69 is located inside the cam hole 631 provided in the front portion 804 of the right plate portion 611, and the center of the cam plate 69 is eccentric with respect to the drive shaft 681 of the gap adjustment motor 68.

The swing shaft 62 is inserted between the right plate portion 611 and the left plate portion 612 in the left-right direction at the substantially center in the longitudinal direction of the support frame 61, and the swing shaft 62 is rotatably inserted into a hole 621 provided in the rear portion 806 of the right plate portion 611 and a hole 622 provided in the left plate portion 612. The left end of the swing shaft 62 protrudes to the left of the left plate portion 612, and the right end of the swing shaft 62 protrudes to the right of the right plate portion 611. Both end portions of the swing shaft 62 are fixed to the extension portion 552 of the frame 55. The spring biases the support frame 61 in a direction to swing the rear end portion side of the support frame 61 downward. Therefore, the cam plate 69 contacts the lower edge portion of the cam hole 631. As shown in fig. 9, when the cam plate 69 is rotated by the driving of the gap adjustment motor 68, the support frame 61 swings about the swing shaft 62 in accordance with the rotation angle of the cam plate 69. At this time, the first driving portion 80 does not swing. The gap adjustment motor 68 adjusts the gap K by moving the support frame 61 up and down.

The first driving unit 80 can control the position of the lower cloth 8 in the left-right direction while the lower cloth 8 is held between the first driving unit 80 and the lower surface 317 of the second support unit 314. As shown in fig. 3, 7, and 8, the first driving portion 80 includes a fixing seat portion 71, a lower motor 72, a coupling shaft 910, a support frame portion 73, a conveyor belt 74, a shaft portion 75, a lower roller 76, a moving mechanism 81, and the like. The fixing seat 71 is substantially rectangular parallelepiped and is fixed to the inside of the housing 551 of the frame 55. The fixing seat portion 71 has a through hole 711 penetrating in the front-rear direction and having a circular shape, and the rotating portion 717 is rotatably held inside the through hole 711. The lower motor 72 is fixed to the front surface of the rotating portion 717, and the lower motor 72 rotates integrally with the rotating portion 717 with respect to the fixed seat portion 71. The stationary seat portion 71 rotatably supports the lower motor 72 together with the rotating portion 717. A pin 940 is provided at the rear of the upper surface of the lower motor 72. The pin 940 protrudes upward. One end of the spring 946 is fixed to the rear of the left surface of the lower motor 72. The spring 946 extends downward, and the other end of the spring 946 is fixed to the inside of the housing 551 of the frame 55. The drive shaft of the lower motor 72 is inserted into a through hole provided in the center of the rotating portion 717 and is coupled to the coupling shaft 910. The coupling shaft 910 protrudes rearward from the rear surface of the rotating portion 717. The support frame 73 is disposed behind the fixing seat 71 and is fixed to the rear surface of the rotating portion 717. Therefore, the support frame portion 73 rotates integrally with the rotating portion 717. The spring 946 always biases the lower motor 72 in the counterclockwise direction in the front view. That is, the spring 946 always biases the lower roller 76 upward. The rear end of the coupling shaft 910 is accommodated inside the support frame 73. The support frame 73 rotatably supports the tip end of the shaft 75 by the shaft 75. The conveyor belt 74 is stretched over the coupling shaft 910 and the shaft 75. The shaft 75 is disposed inside the support frame 61 and extends parallel to the conveyance direction.

The lower roller 76 is fixed to the rear end of the shaft portion 75 and is located below the second roller 32. The lower roller 76 is located between the concave portion 834 of the nozzle plate 59 and the concave portion 582 of the first support portion 58 in the conveying direction. The lower roller 76 has a first roller 761 and a guide 762. The first roller 761 is a disk-shaped portion provided at the rear portion of the lower roller 76. The first roller 761 is disposed upstream of the nozzle 11 in the conveying direction and is rotatable about an axis extending parallel to the conveying direction, and an outer periphery 769 of the first roller 761 can contact the lower cloth 8 from below and can move the lower cloth 8 in a specific direction. An outer periphery 769 of the first roller 761 has a groove 763 extending parallel to the conveying direction. A plurality of grooves 763 are provided at an equal interval on the outer periphery 769. The rear end of the outer periphery 769 is chamfered. The rear end of the groove 763 extends to a chamfered portion of the rear end of the outer periphery 769. The upper end 767 of the first roller 761 is positioned above the upper surface 581 of the first supporting portion 58.

The guide 762 has a surface 764 capable of supporting the lower cloth 8 from below, and the guide 762 is capable of guiding the lower cloth 8 from the first supporting portion 58 to the outer periphery of the first roller 761 along the surface 764. The guide 762 is provided on the front side of the first roller 761. The guide 762 is positioned between the first roller 761 and the first support 58 in the conveying direction, and an upstream side portion of the guide 762 in the conveying direction is positioned below a downstream side portion of the guide 762 in the conveying direction. There is a gap between the guide part 762 and the first support part 58. The guide 762 has a truncated cone shape with a smaller diameter toward the front side. The surface 764 of the guide 762 is linearly inclined when viewed from the left. The front end of the guide 762 is chamfered. As shown in fig. 7, when the lower roller 76 is at an upper position described later, the vertical position of the upper end 765 of the guide part 762 located on the upstream side in the conveying direction is lower than the vertical position of the upper surface 581 of the first support part 58, and lower than the vertical position of the upper end 766 of the downstream side end part in the conveying direction of the first roller 761. The vertical length between the upper end 767 of the first roller 761 and the upper end 765 of the upstream end of the guide 762 in the conveying direction is larger than the depth of the groove 763. The vertical position of the upper end portion of the guide 762 located on the upstream side in the conveying direction may be the same as the vertical position of the upper surface 581 of the first support 58. The guide 762 is a rotary member fixed to the shaft 75. The guide part 762 is formed integrally with the first roller 761 and is fixed to the shaft part 75. The guide 762 is movable in the vertical direction together with the first roller 761 by a movement mechanism 81 described later. The length D2 of the guide part 762 in the conveying direction is larger than the length D1 of the groove 763 in the conveying direction. When the lower motor 72 is driven, the shaft 75 is rotated by the drive shaft of the lower motor 72, the coupling shaft 910, and the conveyor belt 74. Therefore, the lower roller 76 rotates together with the shaft 75 around the shaft 75.

The moving mechanism 81 moves the lower roller 76 to the upper position and the lower position. At this time, the lower conveyance mechanism 66 does not move. The moving mechanism 81 has a plate portion 930, a cylinder 931, and a plate member 933. The plate 930 is provided on the upper surface of the fixing seat 71 and extends in the left-right direction. Cylinder 931 is provided at the front left of plate portion 930. An output shaft 932 of the cylinder 931 extends rightward. The plate member 933 is a member having an L-shape in front view, and is fixed to the right end portion of the output shaft 932. The right end of the plate member 933 abuts against the pin 940 of the lower motor 72. When the output shaft 932 advances rightward, the plate member 933 moves the pin 940 rightward. As shown by arrows a and B in fig. 8, the lower motor 72 swings together with the support frame 73 about the coupling shaft 910 against the biasing force of the spring 946 in the clockwise direction in the front view as the pin 940 moves. Therefore, as shown by an arrow C in fig. 8, the shaft portion 75 moves downward, and the lower roller 76 moves downward. As shown by the two-dot chain line in fig. 4, the lower position is a position where the lower roller 76 is located after being separated downward from the lower surface 317 of the second support portion 314. When the cylinder 931 is driven and the pin 940 is moved leftward, the lower motor 72 swings together with the support frame 73 counterclockwise in the front view by the urging force of the spring 946. Therefore, the shaft portion 75 moves upward, and the lower roller 76 moves upward. As shown by the broken line in fig. 4, the upper position is a position at which the lower roller 76 moves upward by the urging force of the spring 946 to come into contact with the lower surface 317 of the second support portion 314.

As shown in fig. 8 and 9, the position detecting unit 950 can output a signal indicating the vertical position of the lower roller 76 to the CPU 101. The position detector 950 includes an extension member 951, a magnetic body 962, and a magnetic sensor 963. The extension member 951 has a plate shape extending in the vertical direction and rotates together with the lower motor 72. The magnetic body 962 is a permanent magnet fixed to the lower end of the extension member 951. The magnetic body 962 moves in the left-right direction in accordance with the rotation of the extension member 951. The magnetic sensor 963 is fixed to the support plate 998. The support plate 998 extends downward from the front surface of the fixing seat 71 in front of the magnetic body 962. The magnetic sensor 963 can detect magnetism of the magnetic substance 962. The magnetic field detected by the magnetic sensor 963 changes with a change in the position of the magnetic substance 962 in the left-right direction. Therefore, the magnetic sensor 963 can detect the position of the magnetic substance 962 in the left-right direction.

As shown in fig. 4 to 6, the lower detection portion 78 is disposed inside the support frame 61 and below an opening portion 591 provided in the nozzle plate 59. The lower detector 78 is an optical detector formed by integrating the lower light emitting portion 781 and the lower light receiving portion 782 (see fig. 10). The lower light emitting portion 781 and the lower light receiving portion 782 are at the same height position with each other. The lower light emitting portion 781 emits light toward the opening portion 591 of the nozzle plate 59. The light passing through opening 591 is reflected by reflection plate 96 provided on lower surface 317 of second support unit 314. The reflected light reflected by the reflection plate 96 passes through the opening 591. The lower light receiving part 782 receives light passing through the opening part 591.

When the lower specific end portion 8A of the lower cloth 8 is above the opening portion 591 of the nozzle plate 59, the lower specific end portion 8A blocks the light emitted by the lower light emitting portion 781. Therefore, the lower light receiving part 782 does not receive the light emitted from the lower light emitting part 781. When the lower specific end portion 8A is not located above the opening portion 591, the reflecting plate 96 reflects the light emitted from the lower light emitting portion 781. The lower light receiving unit 782 receives the reflected light through the opening 591. Therefore, the lower detection portion 78 can detect whether or not the lower specific end portion 8A is located above the opening portion 591. The opening 591 of the nozzle plate 59 is provided at a lower detection position where the lower detection portion 78 detects the lower specific end portion 8A.

As shown in fig. 1 to 4, the head unit 5 includes an upper conveying mechanism 70, a holding mechanism 98, a nozzle swing mechanism 22, and a mounting portion 41. The upper transport mechanism 70 includes the support arm 16, the upper transport roller 12, an upper transport motor 112, an air cylinder 122 (see fig. 10), and a link mechanism 124. The support arm 16 extends forward from the rear below the nose portion 5, and then extends forward and downward. The support arm 16 supports the upper conveying roller 12 at a lower front end portion so that the upper conveying roller 12 can rotate. The upper transport roller 12 is located behind the nozzle 11, and the rotation shaft 121 of the upper transport roller 12 faces in the left-right direction. The upper feed roller 12 and the lower feed roller 64 cooperate to feed the lower cloth 8 and the upper cloth 6 to which the adhesive Z is attached in the feed direction. The upper conveyance motor 112 is provided to the support arm 16. The upper transport motor 112 is connected to the upper transport rollers 12 via a transmission mechanism provided inside the support arm 16, and the upper transport rollers 12 are rotated by the power of the upper transport motor 112.

The cylinder 122 is provided in the nose portion 5 in a posture along the front-rear direction. The cylinder 122 has a rod 123, and the rod 123 is connected to the support arm 16 via a link mechanism 124. The support arm 16 is driven by the cylinder 122 to swing in the up-down direction. The upper transport roller 12 moves between the nip position and the upper retracted position by swinging the support arm 16 by the air cylinder 122. In fig. 4, the upper transport rollers 12 at the nip position are shown by solid lines, and the upper transport rollers 12 at the upper retracted position are shown by two-dot chain lines. The upper feed rollers 12 in the nipping position contact the upper cloth 6 from the upper side, and nip the lower cloth 8 and the upper cloth 6 between the upper feed rollers 12 and the lower feed rollers 64. The upper feed roller 12 in the upper retracted position is positioned above the upper cloth 6 and is separated from the upper cloth 6.

The holding mechanism 98 holds the lower cloth 8 by pressing the lower cloth 8 from the upper side. The holding mechanism 98 includes a cylinder 974, a cylinder 984, a holding portion 971, a holding portion 981, and a connecting portion 983. The cylinder 974 is provided at a position forward of the nozzle 11 with the output shaft 972 facing downward. The holding portion 971 is fixed to a lower end of the output shaft 972. The cylinder 984 is provided at a position rearward of the nozzle 11 with the output shaft 982 facing downward. The connection portion 983 connects the lower end of the output shaft 982 and the upper end of the holding portion 981. The bottom surfaces of the holding portions 971 and 981 are substantially parallel to the front-rear direction. When the output shafts 972 and 982 move downward, the holding portions 971 and 981 are located at the holding positions. When the holding portion 971 is at the holding position, the holding portion 971 is close to the first support portion 58 and can contact the lower cloth 8 from the upper side. When the holding portion 981 is at the holding position, the holding portion 981 is close to the nozzle plate 59 and can contact the lower cloth 8 from the upper side. When the output shafts 972 and 982 retract upward, the holding portions 971 and 981 are positioned at the release positions shown in fig. 4, and are separated from the lower cloth 8.

The nozzle swing mechanism 22 includes the nozzle lever 18, the nozzle 11, the nozzle motor 113, a support shaft, and the like, and the nozzle swing mechanism 22 can swing the nozzle lever 18 about the support shaft extending in the left-right direction by the power of the nozzle motor 113. The nozzle lever 18 supports the nozzle 11 so that the nozzle 11 can move between the close position and the retracted position. The nozzle lever 18 has a lever member 9 and a cap 181. The lever member 9 extends downward from the left end of the support shaft and is arm-shaped. The stem member 9 includes a flow path 21, a nozzle mounting portion 10, and a heater 132 (see fig. 10). The flow path 21 extends in the vertical direction and has a cylindrical shape. The nozzle 11 is attached to the nozzle attaching portion 10 so that the nozzle 11 can be attached and detached, and a plurality of types of nozzles 11 having different widths or positions in the left-right direction of the discharge port 13 can be attached and detached. The heater 132 is provided in the vicinity of the flow path 21 in the rod member 9 and heats the adhesive Z flowing through the flow path 21. The cover 181 extends in the vertical direction, has a box shape, and covers the rod member 9 and the cylinder 974.

The nozzle 11 protrudes downward from the nozzle mounting portion 10 and then protrudes rightward. The right portion of the nozzle 11 is a rod shape having a substantially triangular shape when viewed from the left. The nozzle 11 is fitted to the nozzle fitting portion 10 by means of screws. The nozzle 11 has a flow passage 15 therein. The flow path 15 communicates with a flow path 21 provided in the lever member 9. The upper end of the portion of the nozzle 11 protruding rightward can support the upper cloth 6 from below. The discharge port 13 is a plurality of circular holes located on the lower surface of the nozzle 11 and arranged at substantially equal intervals in the left-right direction. The nozzle motor 113 is a pulse motor provided on the left side in the interior of the head unit 5. A worm is fixed to an output shaft of the nozzle motor 113. The support shaft extends in the left-right direction above the worm and is cylindrical, and supports a worm wheel that meshes with the upper end of the worm. The support shaft is rotated together with the worm wheel by the power of the nozzle motor 113.

In fig. 2, the nozzle 11 at the close position is shown by a solid line, and the nozzle 11 at the retracted position is shown by a two-dot chain line. When the nozzle 11 is in the close position, the discharge port 13 faces downward and faces the lower cloth 8 from above. When the nozzle 11 is in the close position, the bonding apparatus 1 discharges the adhesive Z from the discharge port 13 toward the lower cloth 8. When the nozzle 11 is at the retracted position, the discharge port 13 faces downward and forward.

As shown in fig. 1 to 3, the inner container accommodating the adhesive Z is attached to the attachment portion 41. The mounting portion 41 is provided at a substantially central portion of the nose portion 5, and includes a cover 411, a housing portion 412, a cover 413, and a heater 131 (see fig. 10). The cover 411 has a substantially rectangular parallelepiped box shape and extends upward from the upper surface of the nose portion 5. The cover 411 is opened in the vertical direction. The housing portion 412 is provided inside the cover 411. The housing portion 412 has a substantially rectangular parallelepiped box shape and extends from the inside of the nose portion 5 to the upper end of the cover 411. The housing portion 412 is opened upward. The inner container is accommodated in the accommodating portion 412 so that the inner container can be attached and detached. The cover 413 is detachably provided on the upper side of the housing portion 412, and opens or closes an upper opening of the housing portion 412. The inner container contains a hot-melt adhesive Z (see fig. 4). The adhesive Z becomes liquid when heated to a predetermined temperature, and becomes solid at a temperature lower than the predetermined temperature. The heater 131 is provided in the storage part 412 and heats the inner container stored in the storage part 412. The adhesive Z is heated by the heater 131 and then melted to become liquid.

As shown in fig. 1 and 3, the arm unit 4 includes the second driving unit 30, the feeding mechanism 45, and an upper detection unit 85. The second driving unit 30 is provided on the lower surface of the arm unit 4 and controls the position of the upper cloth 6 in the left-right direction. The second driving section 30 has an upper arm 31, a rotary shaft 33, a second roller 32, an upper motor 38, a spring 37, an air cylinder 39, and the like. The upper arm 31 extends leftward and downward from the right side of the lower surface of the arm portion 4. The right end of the upper arm 31 is supported on the lower left side of the arm 4 so that the upper arm 31 can rotate about the axis W. The lower left end of the upper arm 31 is located on the front side of the nozzle 11 when in the close position. The rotary shaft 33 protrudes rearward from the lower left end of the upper arm 31, and has the front-rear direction as the axial direction. The second roller 32 is fixed to a rear end portion of the rotating shaft 33, and the second roller 32 is rotatable together with the rotating shaft 33. The second roller 32 is above the lower roller 76. The second roller 32 has a plurality of grooves 34 extending in parallel with the conveying direction on the outer periphery. The second roller 32 is movable between an upper contact position and an upper spaced position. In fig. 4, the second roller 32 at the upper contact position is shown by a solid line, and the second roller 32 at the upper separation position is shown by a two-dot chain line. The height position of the lower end of the second roller 32 at the upper contact position is the same as the height position of the upper surface 315 of the second support portion 314, which will be described later, and the second roller 32 contacts the upper cloth 6 from above and sandwiches the upper cloth 6 between the second roller 32 and the second support portion 314. The lower end of the second roller 32 in the upward spaced position is spaced apart from the upper surface 315 of the second support portion 314, and is spaced apart from the upper cloth 6. The upper motor 38 is a motor capable of rotating in the forward direction and the reverse direction, and is capable of transmitting power to the second roller 32 via a transmission mechanism provided inside the upper arm 31, thereby rotating the second roller 32 in the forward direction and the reverse direction.

The upper arm 31 is rotatable about the axis W between a contact position and a spaced position. The contact position is a position to which the upper arm 31 is rotated when the second roller 32 is at the upper contact position. The spaced position is a position to which the upper arm 31 is rotated when the second roller 32 is at the upper spaced position. At this time, the second roller 32 is in the upper separated position. The spring 37 biases the upper arm 31 in the clockwise direction in the front view centered on the axis W through another member at all times. Therefore, the spring 37 always biases the upper arm 31 in a direction to pivot the upper arm 31 from the contact position to the spaced position. The tip end of the upper arm 31 is urged to pivot in the direction toward the contact position by the own weight of the upper arm 31, the second roller 32, and the like. Since the spring 37 biases the upper arm 31 against the biasing force in the direction of pivoting the upper arm 31 toward the spaced position, it is possible to suppress the force of moving the upper arm 31 toward the contact position from becoming excessive. The upper arm 31 is driven by the air cylinder 39 to rotate around the axis W in the clockwise direction in the front view, and the upper arm 31 is rotated from the contact position to the spaced position.

The upper detection unit 85 is an optical detector formed by integrating an upper light emitting unit 851 and an upper light receiving unit 852 (see fig. 10). The upper detection portion 85 is supported between the upper transport roller 12 and the second roller 32. The upper detection portion 85 is at the same height position as the rotary shaft 121 of the upper conveyance roller 12, or at a height position lower than the rotary shaft 121. Upper light emitting section 851 and upper light receiving section 852 are at the same height position with each other. The upper light emitting portion 851 emits light toward the reflective plate 95 provided on the upper surface 315 of the second support portion 314. The light emitted from the upper light emitting section 851 is reflected by the reflecting plate 95. Upper light receiving unit 852 receives the reflected light reflected by reflecting plate 95. The reflection plate 95 is provided at an upper detection position where the upper specific end portion 6A is detected by the upper detection portion 85. When the upper specific end portion 6A of the upper cloth 6 is located above the reflection plate 95, the upper specific end portion 6A blocks light emitted by the upper light emitting portion 851. Therefore, upper light receiving unit 852 cannot receive the light emitted from upper light emitting unit 851. When the upper specific end portion 6A is not above the reflection plate 95, the light emitted from the upper light emitting portion 851 is reflected by the reflection plate 95. Upper light receiving unit 852 receives the reflected light. Therefore, the upper detection portion 85 can detect whether or not the upper specific end portion 6A is on the upper surface 315 of the second support portion 314.

The supply mechanism 45 has a pump motor 114 and a gear pump 46. An output shaft 115 of the pump motor 114 extends leftward from the pump motor 114. The gear pump 46 is provided on the front side of the fitting portion 41 and is connected to the lever member 9. The output shaft 115 is connected to the gear pump 46 via a gear 461. The gear pump 46 can suck the adhesive Z from the liner accommodated in the accommodating portion 412. The gear pump 46 can supply the pumped adhesive Z to the nozzle 11.

The flow path of the adhesive Z will be described. The adhesive Z flows through the flow path 21 inside the gear pump 46, the rod member 9, and the flow path 15 inside the nozzle 11 to reach the discharge port 13. The rod member 9 has a heater 132 (see fig. 10) in the vicinity of the flow path inside thereof. The heat of the heater 132 is transferred to the nozzle 11 through the nozzle mounting portion 10. The heater 132 can heat the adhesive Z flowing to the discharge port 13 inside the rod member 9. The gear pump 46 sucks the adhesive Z from the liner accommodated in the accommodating portion 412 by driving the pump motor 114. The adhesive Z melted by the heaters 131 and 132 flows from the inner container into the respective flow paths, and is discharged downward from the discharge port 13.

Referring to fig. 10, an electrical structure of the bonding apparatus 1 will be described. The bonding apparatus 1 includes a control apparatus 100. The control device 100 has a CPU101, a ROM102, a RAM103, a storage device 104, a drive circuit 105, and a drive circuit 106. The CPU101 comprehensively controls the operation of the bonding apparatus 1. The CPU101 is connected to the ROM102, RAM103, storage device 104, operation unit 19, pedal 7, lower detection unit 78, upper detection unit 85, drive circuit 105, drive circuit 106, heater 131, heater 132, and magnetic sensor 963. The ROM102 stores programs for performing various processes. The RAM103 is used to temporarily store various information. The storage device 104 is a nonvolatile storage device for storing various setting values and the like.

The operation unit 19 includes a switch, a knee switch, an information input unit, and the like. The switch is provided at the lower part of the front surface of the nose portion 5. The knee control switch is provided at a lower portion of the table and can be operated by an operator using the knee. The information input unit has a liquid crystal screen, and various kinds of information can be input by the information input unit. The information input part is arranged on the workbench. The operator operates the operation unit 19 to input various instructions to the bonding apparatus 1. The operation unit 19 outputs information indicating various instructions to the CPU101 as a detection result. The pedal 7 is provided at a lower portion of the table, and is operated by the foot of the operator. An operator inputs an adhesion start instruction or an adhesion end instruction, which will be described later, via the pedal 7. The pedal 7 outputs information indicating an instruction to start bonding or an instruction to end bonding to the CPU101 as a detection result. The lower detection unit 78 and the upper detection unit 85 output the detection results to the CPU 101.

The CPU101 controls the driving of the lower conveyance motor 63, the upper conveyance motor 112, the nozzle motor 113, the pump motor 114, the gap adjustment motor 68, the lower motor 72, and the upper motor 38, respectively, by sending control signals to the drive circuit 105. The CPU101 controls the driving of the cylinder 39, the cylinder 122, the cylinder 931, the cylinder 974, and the cylinder 984, respectively, by sending control signals to the drive circuit 106. The CPU101 drives the heater 131 and the heater 132. The heater 131 heats the adhesive Z in the inner container. The heater 132 heats the adhesive Z flowing to the discharge port 13 in the flow path 21 inside the rod member 9. The adhesive Z becomes liquid by being heated by the heater 131 and the heater 132. The CPU101 can detect the vertical position of the lower roller 76 based on the detection result of the magnetic sensor 963.

The main process is described with reference to fig. 11 to 13. For example, an operator inputs a main process start instruction to the operation unit 19. The CPU101 reads out a program from the ROM102 and starts the main process. Before the main process is started, the bonding apparatus 1 is in an initial state. When the bonding apparatus 1 is in the initial state, the nozzle 11 is in the close position, the upper transport roller 12 is in the nip position, the second roller 32 is in the upper contact position, and the lower roller 76 is in the upper position. As shown in fig. 5, the cloth 200 is bonded in a cylindrical state by taking a portion on one end side of the cloth 200 as an upper cloth 6 and a portion on the other end side of the cloth 200 as a lower cloth 8, and the description will be given by taking this as an example. The cloth 200 has a step 203 extending in a direction perpendicular to the conveyance direction. The step portion 203 is a portion formed by bonding two pieces of fabric so as to be overlapped in the vertical direction.

The CPU101 performs initialization processing (S10). At the time of initialization processing, the CPU101 drives the heater 131 and the heater 132. The adhesive Z becomes liquid by the heat generated by the heaters 131 and 132. The CPU101 determines whether or not a roller movement instruction is detected (S11). The roller movement instruction is an instruction to move the upper conveying roller 12, the second roller 32, and the lower roller 76, respectively. The CPU101 waits until it is determined from the detection result of the operation unit 19 that the roller movement instruction is detected (S11: no). When determining that the roller movement instruction is detected (yes in S11), the CPU101 controls the driving of the air cylinder 122 to raise the upper conveying roller 12 (S14). The upper conveyance roller 12 is raised from the nip position to the upper retracted position.

The CPU101 controls the driving of the air cylinder 931 to lower the lower roller 76 and move the lower roller 76 from the upper position to the lower position (S15). At this time, lower roller 76 is separated downward from lower surface 317 of second support portion 314. The CPU101 controls the driving of the air cylinder 39 to raise the second roller 32 and move the second roller 32 from the upper contact position to the upper separation position (S16). Second roller 32 is separated upward from upper surface 315 of second support portion 314.

The CPU101 determines whether or not a nozzle movement instruction is detected based on the detection result of the operation unit 19 (S17). The nozzle movement instruction is an instruction to move the nozzle 11 between the close position and the retracted position. The CPU101 waits until determining that the nozzle movement instruction is detected (S17: no). The operator rotates second supporting unit 314 counterclockwise in a plan view, moves second supporting unit 314 from the operating position to the retracted position, and then inputs a nozzle movement instruction using operation unit 19. When the CPU101 determines that the nozzle movement instruction is detected (YES in S17), the CPU101 controls the driving of the nozzle motor 113 to swing the nozzle lever 18 and move the nozzle 11 from the close position to the retreat position (S18). The CPU101 inputs a predetermined pulse signal as a control signal to the drive circuit 105, and the nozzle 11 moves to the retracted position. Since the second support portion 314 is at the retracted position, the nozzle 11 moves to the retracted position without contacting the second support portion 314. Since the nozzle lever 18 has the holding portion 971, the holding portion 971 moves together with the movement of the nozzle lever 18. When the nozzle 11 reaches the retracted position, the driving of the nozzle motor 113 is stopped.

The CPU101 determines whether or not a nozzle movement instruction is detected based on the detection result of the operation unit 19 (S19). The CPU101 waits until determining that the nozzle movement instruction is detected (S19: no). The operator places the lower cloth 8 on the nozzle plate 59 and the first support portion 58, and then inputs a nozzle movement instruction by the operation portion 19. The lower feed roller 64 and the nozzle lower roller 65 are both in contact with the lower cloth 8 from the lower side. When determining that the nozzle movement instruction is detected (yes in S19), the CPU101 controls the driving of the nozzle motor 113 to move the nozzle 11 from the retracted position to the close position (S20). The CPU101 inputs a predetermined pulse signal as a control signal to the drive circuit 105, and the nozzle 11 is moved to the close position. The discharge port 13 faces the lower cloth 8 from above.

The CPU101 performs the vertical position adjustment processing (S21). The vertical position adjustment process is a process of adjusting the vertical position of the nozzle plate 59. When adjusting the gap K, the operator adjusts the vertical position of the nozzle plate 59. An operator inputs an instruction to raise or lower the nozzle plate 59 to the operation unit 19. The CPU101 controls the driving of the gap adjustment motor 68 in accordance with the detection result of the operation unit 19, swings the support frame 61, and moves the nozzle plate 59 up and down, thereby generating an appropriate gap K between the lower cloth 8 and the discharge port 13. At this time, the second support portion 314 is at the retracted position, and the upper cloth 6 is not placed on the nozzle plate 59 and the first support portion 58. Therefore, the operator can easily recognize the vertical distance between the nozzle plate 59 and the discharge port 13. When the operator inputs an instruction to end the vertical position adjustment process to the operation unit 19, the CPU101 detects the end instruction, and proceeds to S22.

The CPU101 determines whether or not a roller movement instruction is detected based on the detection result of the operation unit 19 (S22). When determining that the roller movement instruction has not been detected (no in S22), the CPU101 determines whether or not the holder movement instruction has been detected (S23). The holding portion movement instruction is an instruction for controlling the movement of the holding portion 971 and the holding portion 981 by the CPU 101. When determining that the holding unit movement instruction is detected (yes in S23), the CPU101 controls the driving of the air cylinder 974 and the air cylinder 984 to control the holding unit 971 and the holding unit 981 to move from the release position to the holding position (S24). The holding portions 971 and 981 are lowered, and the lower cloth 8 is held by sandwiching the lower cloth 8 between the holding portions 971 and the first support portions 58 and between the holding portions 981 and the nozzle plate 59 of the extension 552. When determining that the holding section movement instruction is not detected (S23: no), or after S24, the CPU101 returns the process to S22.

The operator rotates second supporting unit 314 clockwise in a plan view, and moves it from the retracted position to the operating position. Second bearing portion 314 moves to a position above lower roller 76 and below second roller 32. The upper cloth 6 is placed on the upper surfaces 315 of the nozzle plate 59, the first support portion 58, and the second support portion 314 by the operator. For example, the operator disposes the cloth 200 around the extension 552 in a cylindrical shape. The upper cloth 6 overlaps the lower cloth 8 from above between the lower feed rollers 64 and the upper feed rollers 12. At this time, the upper specific end portion 6A overlaps the lower specific end portion 8A on the upper side of the lower specific end portion 8A. After the upper cloth 6 is placed, the operator inputs a roller movement instruction to the operation unit 19. When determining that the roller movement instruction is detected (yes in S22), the CPU101 controls the driving of the air cylinder 122 to lower the upper transport roller 12 to the nipping position (S25). The upper feed rollers 12 sandwich the lower cloth 8 and the upper cloth 6 between the upper feed rollers 12 and the lower feed rollers 64.

The CPU101 controls the driving of the air cylinder 931 to raise the lower roller 76 (S26). When the output shaft 932 is moved leftward by the cylinder 931, the support frame 73 is rotated clockwise in the rear view by the biasing force of the spring 946, and the shaft portion 75 and the lower roller 76 are raised. Thus, the lower roller 76 is moved from the lower position to the upper position. At this time, the lower roller 76 sandwiches the lower cloth 8 between the lower roller 76 and the lower surface 317 of the second support portion 314. The CPU101 controls the driving of the air cylinder 39 to lower the second roller 32 (S27). The second roller 32 moves from the upper spaced position to the upper contact position. The second roller 32 sandwiches the upper cloth 6 between the second roller 32 and the upper surface 315 of the second support portion 314.

The CPU101 performs the bonding process (S28). The bonding process is a process of bonding the lower specific end portion 8A of the lower cloth 8 and the upper specific end portion 6A of the upper cloth 6 together with the adhesive Z. As shown in fig. 12, the CPU101 determines whether or not a start instruction is detected, depending on whether or not the operator operates the pedal 7 with his foot (S51). The start instruction is an instruction to start the bonding operation. The start instruction further includes an instruction to move the holding portions 971 and 981 in the holding position to the release position. The CPU101 stands by until it is determined that the start instruction is detected (S51: no).

When determining that the start instruction is detected (yes in S51), the CPU101 determines whether or not the holding portions 971 and 981 are at the holding positions (S52). When the CPU101 determines that the holding portion 971 and the holding portion 981 are at the release position (S52: no), the CPU101 advances the process to S54. When determining that the holding portion 971 and the holding portion 981 are at the holding positions (yes in S52), the CPU101 controls the driving of the air cylinder 974 and the air cylinder 984 to control the holding portion 971 and the holding portion 981 to move from the holding positions to the release positions (S53). The holding portions 971 and 981 rise to release the holding of the lower cloth 8.

The CPU101 controls the driving of the upper conveyance motor 112 and the lower conveyance motor 63, and starts the driving of the upper conveyance roller 12 and the lower conveyance roller 64 (S54). The upper feed rollers 12 and the lower feed rollers 64 cooperate to feed the lower cloth 8 and the upper cloth 6 to the rear side. The lower nozzle roller 65 rotates together with the lower feed roller 64, and the lower nozzle roller 65 supplementarily feeds the lower cloth 8 rearward. The lower cloth 8 is in contact with the lower feed roller 64 and the nozzle lower roller 65, and moves in the feed direction. The surface 764 of the guide 762 guides the lower cloth 8 positioned on the upper surface 581 of the first support 58 toward the upper end 767 of the first roller 761. The lower cloth 8 smoothly moves from the upper surface 581 of the first supporting portion 58 to the upper end 767 of the first roller 761.

The CPU101 controls the driving of the pump motor 114 to start the discharge of the adhesive Z (S55). The supply mechanism 45 supplies the adhesive Z to the nozzle 11 by driving the pump motor 114. The adhesive Z is discharged downward from the discharge port 13 (see fig. 1), applied to the lower specific end portion 8A, and conveyed to the rear side by the upper conveying roller 12, the lower conveying roller 64, and the lower nozzle roller 65, the lower cloth 8, and the upper cloth 6.

The CPU101 determines whether or not the lower specific end portion 8A is at the lower detection position based on the detection result of the lower detection portion 78 (S56). When the lower detection portion 78 does not detect light, the CPU101 determines that the lower specific end portion 8A is at the lower detection position (S56: yes). At this time, the CPU101 controls the driving of the lower motor 72 to drive the lower roller 76 to rotate in the first output direction (S57). The first feeding direction is a rotation direction when the upper end of the lower roller 76 is directed leftward. The lower roller 76 rotating in the first feeding direction moves the lower specific end portion 8A to the left. At this time, the lower specific end portion 8A moves in a direction deviating from the lower detection position.

When the lower detection portion 78 detects light, the CPU101 determines that the lower specific end portion 8A is not at the lower detection position (S56: no). The CPU101 controls the driving of the lower motor 72 to drive the lower roller 76 to rotate in the second output direction (S58). The second output direction is the reverse of the first output direction. The lower roller 76 rotating in the second feeding direction moves the lower specific end portion 8A to the right. At this time, the lower specific end portion 8A moves in a direction approaching the lower detection position.

After S57 or S58, the CPU101 determines whether or not the upper specific end portion 6A is at the upper detection position based on the detection result of the upper detector 85 (S59). When the upper detection unit 85 does not detect light, the CPU101 determines that the upper specific end portion 6A is at the upper detection position (S59: yes). The CPU101 controls the driving of the upper motor 38 to drive the second roller 32 to rotate in the third output direction (S60). The third output direction is a rotational direction when the lower end of the second roller 32 is directed rightward. The second roller 32 rotating in the third feeding direction moves the upper specific end portion 6A to the right. At this time, the upper specific end portion 6A moves in a direction away from the upper detection position.

When the upper detection unit 85 detects light, the CPU101 determines that the upper specific end portion 6A is not at the upper detection position (S59: no). The CPU101 controls the driving of the upper motor 38 to drive the second roller 32 to rotate in the fourth output direction (S61). The fourth output direction is the reverse of the third output direction. The second roller 32 rotating in the fourth feeding direction moves the upper specific end portion 6A to the left. At this time, the upper specific end portion 6A moves in a direction to approach the upper detection position.

After S60 or S61, the CPU101 performs the gap adjustment process (S62). The gap adjustment process is a process of adjusting the gap K in accordance with the vertical position of the lower roller 76. As shown in fig. 13, in the gap adjustment process, the CPU101 determines whether the lower roller 76 has descended or not, based on the detection result of the magnetic sensor 963 (S101). While the non-stepped portion 203 of the lower cloth 8 passes between the lower roller 76 and the lower surface 317 of the second support portion 314, the lower roller 76 does not descend and rotates in the first output direction or the second output direction. At this time, the extension setting member 951 does not move in the left-right direction, and the detection result of the magnetic sensor 963 is constant. Therefore, the CPU101 determines that the lower roller 76 is not lowered (S101: no), and the process proceeds to S109. The CPU101 refers to the storage device 104 and determines whether or not the down flag is on (S109). The drop flag is stored in the storage device 104. The initial value of the down flag is off. When the CPU101 determines that the down flag is off (S109: no), the CPU101 shifts the process to S201.

As shown in fig. 4, when the lower rear end portion 202 of the stepped portion 203 of the lower cloth 8 enters between the lower roller 76 and the lower surface 317 of the second support portion 314, the rear end portion of the stepped portion pushes down the lower roller 76 by an amount corresponding to the amount of change in the thickness of the lower cloth 8 (hereinafter referred to as the height of the stepped portion). The shaft 75 rotates around the coupling shaft 910 in the clockwise direction in the front view. Therefore, the extension member 951 rotates clockwise in the front view about the coupling shaft 910, and the magnetic substance 962 moves leftward. The magnetic sensor 963 detects the movement of the magnetic body 962 to the left and also detects the position of the magnetic body 962 in the left-right direction after the movement. At this time, the CPU101 determines that the lower roller 76 has descended (S101: YES). The CPU101 acquires the amount of lowering of the lower roller 76 based on the detection result of the magnetic sensor 963 (S103). When S101 is executed, the magnetic sensor 963 outputs the position in the left-right direction before and after the magnetic substance 962 moves to the CPU101 as a detection result. The CPU101 acquires the amount of movement of the magnetic substance 962 in the left-right direction based on the detection result of the magnetic sensor 963, and acquires the amount of lowering of the lower roller 76 (S103).

The CPU101 starts counting time (S105). The CPU101 sequentially stores the count results to the RAM 103. The CPU101 updates the down flag stored in the storage device 104 to on (S107). The CPU101 determines whether or not a predetermined time has elapsed after the timer is started in S105 (S111). The predetermined time is set to a timing at which the lower rear end portion 202 enters between the nozzle 11 and the nozzle lower roller 65, based on the conveyance speed of the lower cloth 8. When the rear end portion of the stepped portion is located between the nozzle 11 and the lower nozzle roller 65, the CPU101 determines that the predetermined time has not elapsed (S111: no). At this time, the CPU101 shifts the process to S201.

When the CPU101 determines that the predetermined time has elapsed (yes in S111), the CPU101 controls the driving of the gap adjustment motor 68 to lower the support frame 61 by an amount corresponding to the amount of lowering of the lower roller 76 acquired in S103 (S113). At this time, the gap K between the discharge port 13 of the nozzle 11 and the nozzle plate 59 is larger than the gap before the movement. The support frame 61 finishes the downward movement at the timing when the lower rear end portion 202 enters between the lower nozzle roller 65 and the nozzle 11. Therefore, the bonding apparatus 1 keeps the discharge distance constant both before and after the lower rear end portion 202 enters between the nozzle lower roller 65 and the nozzle 11. The discharge distance is the shortest distance between the discharge port 13 of the nozzle 11 and the lower cloth 8. The CPU101 ends the time counting (S115), updates the down flag stored in the storage device 104 to off (S119), and shifts the process to S201.

The CPU101 determines whether the lower roller 76 has risen based on the detection result of the magnetic sensor 963 (S201). While the stepped portion 203 of the lower cloth 8 passes between the lower roller 76 and the lower surface 317 of the second support portion 314, the lower roller 76 does not rise and rotates in the first output direction or the second output direction. At this time, the extension setting member 951 does not move in the left-right direction, and the detection result of the magnetic sensor 963 is constant. Therefore, the CPU101 determines that the lower roller 76 is not raised (S201: no), and shifts the process to S209. The CPU101 refers to the storage device 104 and determines whether or not the up flag is on (S209). The up flag is stored in the storage device 104. The initial value of the up flag is off. When the CPU101 determines that the rising flag is off (S209: no), the CPU101 ends the gap adjustment processing and returns the processing to the bonding processing in fig. 12.

As shown in fig. 14, when the upper front end portion 201 of the stepped portion 203 of the lower cloth 8 is separated from between the lower roller 76 and the lower surface 317 of the second support portion 314, the lower roller 76 is moved upward by an amount corresponding to the height of the stepped portion by the urging force of the spring 946. The shaft portion 75 rotates about the coupling shaft 910 in the counterclockwise direction in the front view. Therefore, the extension member 951 rotates counterclockwise in the front view about the coupling shaft 910, and the magnetic substance 962 moves rightward. The magnetic sensor 963 detects the movement of the magnetic body 962 to the right and also detects the position of the magnetic body 962 in the left-right direction after the movement. At this time, the CPU101 determines that the lower roller 76 has ascended (S201: yes), and the CPU101 acquires the amount of ascent of the lower roller 76 based on the detection result of the magnetic sensor 963 (S203). The magnetic sensor 963 outputs the position in the left-right direction before and after the movement of the magnetic substance 962 as the detection result to the CPU 101. The CPU101 acquires the amount of movement of the magnetic substance 962 in the left-right direction based on the detection result of the magnetic sensor 963, and acquires the amount of elevation of the lower roller 76 based on the acquired amount of movement (S203).

The CPU101 starts counting time (S205). The CPU101 sequentially stores the count results to the RAM 103. The CPU101 updates the rising flag stored in the storage device 104 to on (S207). The CPU101 determines whether or not a predetermined time has elapsed after the timer is started in S205 (S211). The predetermined time in S211 is set to be the same as the predetermined time in S111. When the CPU101 determines that the predetermined time has not elapsed (S211: no), the CPU101 ends the ascending process and returns the process to the bonding process in fig. 12.

When the CPU101 determines that the predetermined time has elapsed (yes in S211), the CPU101 controls the driving of the gap adjustment motor 68 to raise the support frame 61 by an amount corresponding to the amount of raising of the lower roller 76 acquired in S203 (S213). At this time, the gap K between the discharge port 13 of the nozzle 11 and the nozzle plate 59 is smaller than the gap before the movement. The support frame 61 finishes the upward movement at the timing when the upper front end portion 201 is separated from between the lower nozzle roller 65 and the nozzle 11. Therefore, the bonding apparatus 1 keeps the discharge distance constant both before and after the upper front end portion 201 is separated from between the nozzle lower roller 65 and the nozzle 11. The CPU101 ends the time counting (S215), updates the rising flag stored in the storage device 104 to off (S219), ends the gap adjustment processing, and returns the processing to the bonding processing in fig. 12. The CPU101 determines whether or not an instruction to end the bonding process is detected based on the detection result of the pedal 7 (S63). When determining that the instruction to end the bonding process has not been detected (S63: no), the CPU101 returns the process to S56. When the CPU101 determines that the instruction to end the bonding process is detected (YES in S63), the CPU101 stops the driving of the upper conveyance motor 112, the lower conveyance motor 63, the pump motor 114, the lower motor 72, and the upper motor 38 (S68). The CPU101 ends the bonding process and ends the main process.

In the above embodiment, the bonding apparatus 1 is an example of the bonding apparatus of the present invention, the discharge port 13 is an example of the discharge port of the present invention, the nozzle 11 is an example of the nozzle of the present invention, and the supply mechanism 45 is an example of the supply portion of the present invention. The upper conveying mechanism 70 and the lower conveying mechanism 66 are examples of the conveying unit of the present invention. The lower cloth 8 is an example of the first sheet of the present invention, and the upper cloth 6 is an example of the second sheet of the present invention. The first roller 761 is an example of the first roller of the present invention, the shaft portion 75 is an example of the shaft portion of the present invention, the groove 763 is an example of the groove of the present invention, and the first driving portion 80 is an example of the first driving portion of the present invention. The first support portion 58 is an example of the first support portion of the present invention, the face 764 is an example of the face of the present invention, and the guide portion 762 is an example of the guide portion of the present invention. The second support portion 314 is an example of the second support portion of the present invention, the second roller 32 is an example of the second roller of the present invention, and the second driving portion 30 is an example of the second driving portion of the present invention. The nozzle plate 59 is an example of the support member of the present invention, and the gap adjusting portion 77 is an example of the support mechanism of the present invention. The moving mechanism 81 is an example of a moving unit of the present invention.

In the bonding apparatus 1 according to the above-described embodiment, even when the lower cloth 8 has the stepped portion, the lower cloth 8 can be guided from the first support portion 58 to the outer periphery of the lower roller 76 by the guide portion 762. The bonding apparatus 1 can avoid the following situations: the side surface of the lower roller 76 restricts the movement of the stepped portion, and the adhesive Z is unevenly applied, thereby degrading the adhesion quality.

The bonding apparatus 1 includes a second support portion 314, a second roller 32, and a second driving portion 30. The second support 314 faces the first roller 761 from above, and can nip the lower cloth 8 between the second support 314 and the first roller 761. The second roller 32 is located between the nozzle 11 and the first support portion 58 in the transport direction, and the outer periphery of the second roller 32 contacts the upper cloth 6 from the upper side, so that the upper cloth 6 can be held between the second roller 32 and the second support portion 314, and the upper cloth 6 can be moved in a specific direction. The second driving unit 30 is connected to the second roller 32. The CPU101 controls the second driving unit 30 to rotate the second roller 32 and move the upper cloth 6 in a specific direction (S60, S61). The bonding apparatus 1 includes a moving mechanism 81, and the moving mechanism 81 supports the first roller 761 so that the first roller 761 can move in the vertical direction. The bonding apparatus 1 includes the nozzle plate 59, and a gap adjusting portion 77 capable of changing the vertical position of the nozzle plate 59. The nozzle plate 59 supports the lower cloth 8 from below the nozzles 11, and the nozzle plate 59 is provided on the downstream side in the transport direction of the first support portion 58. The CPU101 controls the gap adjusting unit 77 in accordance with the vertical position of the lower roller 76 to change the vertical position of the nozzle plate 59 (S62). The guide 762 is provided to be movable in the up-down direction together with the first roller 761. Therefore, even when the lower cloth 8 has a stepped portion, the bonding apparatus 1 can appropriately adjust the gap K between the lower cloth 8 and the discharge port 13 of the nozzle 11 by changing the vertical position of the nozzle plate 59 in accordance with the vertical position of the first roller 761. The bonding apparatus 1 can appropriately adjust the position of the end of the upper cloth 6 with respect to the end of the lower cloth 8 by the first roller 761 and the second roller 32.

Specifically, when the stepped portion of the lower cloth 8 enters between the lower roller 76 and the lower surface 317 of the second support portion 314, the lower roller 76 moves downward against the biasing force of the spring 946. At this time, the magnetic substance 962 moves leftward, and the output voltage as the detection result of the magnetic sensor 963 changes (S101: yes). At this time, the CPU101 lowers the support frame 61 by an amount corresponding to the height of the step portion based on the detection result of the magnetic sensor 963 (S113). When the stepped portion is separated from between the lower roller 76 and the lower surface 317 of the second support portion 314, the lower roller 76 moves upward by the urging force of the spring 946. At this time, the magnetic substance 962 moves to the right, and the output voltage of the magnetic sensor 963 changes (S201: yes). The CPU101 raises the support frame 61 at a timing when the step portion is separated from between the lower nozzle roller 65 and the nozzle 11 based on the detection result of the magnetic sensor 963 (S213). Therefore, the bonding apparatus 1 can adjust the gap K in accordance with the thickness of the lower cloth 8 passing between the second support portion 314 and the lower roller 76. Therefore, the bonding apparatus 1 can suppress a decrease in work efficiency when bonding the lower cloth 8 having the step portion, and can suppress a bonding failure due to a change in the discharge distance.

The magnetic sensor 963 can detect the position of the magnetic substance 962 in the left-right direction. That is, the magnetic sensor 963 can detect the position to which the extension setting member 951 is rotated. The position to which the extension setting member 951 is rotated is related to the up-down direction position of the lower roller 76. In comparison with the case where the vertical position of the lower roller 76 is directly detected by an optical sensor, a limit switch, or the like, the magnetic sensor 963 can be disposed at a position separated from the lower cloth 8 in the vertical direction in the bonding apparatus 1. Therefore, the bonding apparatus 1 can easily secure the conveyance area of the lower cloth 8.

The first driving portion 80 of the bonding apparatus 1 includes a shaft portion 75, and the shaft portion 75 extends parallel to the conveying direction and is fixed with the first roller 761. The CPU101 controls the first driving portion 80 to rotate the shaft portion 75, thereby rotating the first roller 761. The guide 762 is a rotary member fixed to the shaft 75. Therefore, the guide 762 of the bonding apparatus 1 can be rotated coaxially with the first roller 761 with a simple configuration.

The guide 762 of the bonding apparatus 1 is a member integrally formed with the first roller 761. Therefore, the bonding apparatus 1 can reduce the number of components compared to the case where the guide 762 and the first roller 761 are independent of each other. The bonding apparatus 1 can reliably avoid the lower cloth 8 from being sandwiched between the guide 762 and the first roller 761.

The vertical position of the upstream end of the guide 762 in the conveying direction of the bonding apparatus 1 is lower than the vertical position of the upper surface 581 of the first support 58, or is the same as the vertical position of the upper surface 581 of the first support 58. In the bonding apparatus 1, the lower cloth 8 is less likely to be caught at the upstream end in the conveying direction of the guide 762.

The first roller 761 of the bonding apparatus 1 has a groove 763 extending parallel to the conveying direction on the outer periphery, and the length D2 of the guide part 762 in the conveying direction is larger than the length D1 of the groove 763 in the conveying direction. Therefore, the bonding apparatus 1 can smoothly guide the lower cloth 8 from the first supporting portion 58 to the outer periphery 769 of the first roller 761, compared with an apparatus in which the length of the guide portion 762 in the conveying direction is less than or equal to the length D1 of the groove 763 in the conveying direction.

The present invention can be modified in various ways in addition to the above embodiments. The bonding device may be a bonding device capable of bonding sheets made of a material other than cloth to each other. The shape and structure of the lower transport device may be different from those of the above-described embodiments, and for example, instead of the lower transport device 50 having a cylindrical shape with a distal end portion in an elongated cylindrical shape, a plate member that extends in the horizontal direction and can support the lower cloth 8 from below may be provided. The lower conveying device can also be not disassembled.

The shapes of the first roller and the guide portion may be appropriately changed. The first roller and the guide portion may be independent of each other. For example, the bonding apparatus may have the first driving unit 82 shown in fig. 15. The first driving portion 82 is different from the first driving portion 80 of the above-described embodiment in that it includes the first roller 91 and the guide portion 92 instead of the lower roller 76. The first roller 91 is fixed to the rear end of the shaft portion 75, and the first roller 91 has a plurality of grooves 912 extending in parallel with the conveying direction on the outer periphery 911. The guide portion 92 is provided between the first roller 91 and the first support portion 58 in the conveying direction, and the guide portion 92 has a surface 921 such that an upstream portion in the conveying direction of the surface 921 is located below a downstream portion in the conveying direction of the surface. The guide portion 92 is a truncated cone-shaped member, and is independent from the first roller 91. The guide portion 92 is fixed to the shaft portion 75 so as to be spaced apart from the first roller 91 on the upstream side in the conveying direction of the first roller 91. The guide portion 92 may also be in contact with the first roller 91. The upper end 922 of the guide 92 located on the upstream side in the conveying direction is located below the upper end 581 of the first support 58 in the vertical direction and below the upper end 913 of the downstream end of the first roller 91 in the conveying direction. The vertical position of the upper end 923 of the downstream end in the conveying direction of the guide section 92 is the same as the vertical position of the upper end 913 of the downstream end in the conveying direction of the first roller 91. The vertical length between the upper end 914 of the first roller 91 and the upper end 922 of the upstream end of the guide section 92 in the conveying direction is longer than the depth of the groove 912. When the moving mechanism 81 is driven, the guide portion 92 moves up and down together with the first roller 91. The length D4 of the guide portion 92 in the conveying direction is greater than the length D3 of the groove 912 in the conveying direction.

The configuration of the guide portion may be changed as appropriate, and for example, the guide portion may not be fixed to the shaft portion to which the first roller is fixed, or the guide portion may not be a rotating body that rotates together with the first roller. For example, the bonding apparatus may have the first driving unit 83 shown in fig. 16. The first driving portion 83 is different from the first driving portion 80 of the above embodiment in that it includes a first roller 91 and a plate member 94 instead of the lower roller 76. The first roller 91 is the same as the first roller in the first driving section 82 shown in fig. 15. The plate member 94 is provided on the upstream side in the conveying direction of the first roller 91, and extends parallel to the conveying direction. The plate member 94 has a plate portion 941 and a guide portion 942. The plate portion 941 extends substantially parallel to the shaft portion 75. The front end of the plate portion 941 is fixed to the rear upper end of the support frame 73. The guide portion 942 is coupled to a rear end of the plate portion 941. The guide portion 942 is provided between the first roller 91 and the first support portion 58 in the conveying direction, and the conveying direction upstream side portion of the guide portion 942 is located below the conveying direction downstream side portion of the guide portion 942. The guide portion 942 is linearly inclined rearward and upward with respect to the extending direction of the plate portion 941. The length D5 of the guide portion 942 in the conveying direction is larger than the length D3 of the groove 912 in the conveying direction. When the first roller 91 rotates, the plate member 94 does not rotate. When the moving mechanism 81 is driven, the plate member 94 moves up and down together with the first roller 91.

The first roller and the second roller may not have a groove portion on the outer periphery. The length of the guide portion in the conveying direction may be equal to or shorter than the length of the groove in the conveying direction. The shape of the guide portion may be changed as appropriate, and the guide portion may have a surface whose shape is curved when viewed from the side. The first roller and the second roller may have, on the outer periphery thereof, groove portions extending in a direction intersecting the conveying direction, protrusion portions protruding from the outer periphery, and the like. The upper-lower position of the upstream end of the guide portion in the conveying direction may be located above the upper surface of the first support portion in the upper-lower direction. The bonding apparatus may omit the second roller and the second driving unit. In this case, the processing of S16, S27, and S59 to S61 may be changed as appropriate. The moving mechanism 81 and the position detecting section 950 may be omitted as appropriate. In this case, the process of S62 may be appropriately omitted. The magnetic sensor 963 may be an optical sensor or another detector such as a limit switch.

The bonding apparatus may omit the second driving unit 30. In this case, the moving mechanism 81 may be omitted, or the lower roller 76 may not be moved to the upper position and the lower position. The bonding device may be provided with, for example, a clamping member capable of clamping the lower cloth 8 between the clamping member and the lower roller 76 and capable of moving up and down, and a position detection unit capable of outputting a signal indicating the vertical position of the clamping member to the CPU 101.

Each process in the gap adjustment process can be appropriately changed. For example, in the process of S113, the amount of lowering of the support frame 61 by controlling the driving of the gap adjustment motor 68 may be a predetermined amount. In this case, the process of S103 may be omitted. In the process of S213, the support frame 61 may be raised by a preset amount by controlling the driving of the gap adjustment motor 68. In this case, the process of S203 may be omitted.

The program including the instruction for causing the bonding apparatus to perform the main process may be stored in a storage device included in the bonding apparatus before the bonding apparatus performs the main process. The program acquisition method, the acquisition path, and the device for storing the program can be appropriately changed. The bonding apparatus may receive a program to be executed by the control unit from another apparatus via a cable or wireless communication, and store the program in a storage device such as a flash memory. Other devices include, for example, computers and servers connected via a network. Each step of the process to be performed by the bonding apparatus may be partially or entirely performed by an electronic device (e.g., ASIC) other than the CPU 101. Each step in the above-described processing may be distributed processing by a plurality of electronic devices (for example, a plurality of CPUs).

Claims (7)

1. A bonding apparatus (1) comprises:

a conveying unit (70, 66) that conveys the first sheet and the second sheet in a conveying direction intersecting the vertical direction while pressing the first sheet and the second sheet together via an adhesive so that the first sheet and the second sheet overlap each other;

a nozzle (11) having a discharge port (13) capable of discharging the adhesive to the first sheet, the nozzle being disposed upstream of the conveying section in the conveying direction and between the first sheet and the second sheet in the vertical direction;

a supply unit (45) that supplies the adhesive to the nozzle;

a first roller (761) that is disposed upstream of the nozzle in the conveying direction so as to be rotatable about an axis extending parallel to the conveying direction, an outer periphery of the first roller being in contact with the first sheet from below, the first roller moving the first sheet in a specific direction orthogonal to the conveying direction and the vertical direction; and

a first drive section (80) connected to the first roller,

the bonding apparatus is configured to convey the first sheet and the second sheet while pressing the first sheet and the second sheet against each other by the conveying unit while discharging the adhesive from the discharge port by the supply unit and applying the adhesive to a specific end portion of the first sheet on one side in the specific direction, and to move the first sheet in the specific direction by rotating the first roller by the first driving unit,

the bonding apparatus is characterized in that,

the bonding device comprises:

a first support section (58) that is located on the upstream side in the conveying direction of the first roller and supports the first sheet from below; and

and a guide section (762) which is located between the first roller and the first support section in the conveying direction, a portion of the guide section located upstream in the conveying direction being located below a portion of the guide section located downstream in the conveying direction, the guide section having a surface which supports the first sheet from below, the guide section guiding the first sheet along the surface from the first support section to the outer periphery of the first roller.

2. Bonding device according to claim 1,

the bonding apparatus further includes:

a second support portion (314) that faces the first roller from above, the second support portion being capable of sandwiching the first sheet between the second support portion and the first roller;

a second roller (32) which is disposed between the nozzle and the first support portion in the transport direction, an outer periphery of which contacts the second sheet from above, and which is capable of nipping the second sheet between the second roller and the second support portion, and which moves the second sheet in the specific direction;

a second drive unit (30) connected to the second roller;

a support mechanism (77) that has a support member that supports the first sheet from below the nozzle, the support member being provided on the downstream side in the conveyance direction of the first support portion, the support mechanism being capable of changing a vertical position of the support member; and

a moving section (81) that supports the first roller so that the first roller can move in the vertical direction,

the guide portion is provided to be movable in the up-down direction together with the first roller.

3. Bonding device according to claim 2,

the first drive portion has a shaft portion (75) extending parallel to the conveyance direction and to which the first roller is fixed,

the guide portion is a rotary member fixed to the shaft portion.

4. Bonding device according to claim 2,

the guide portion is a member formed integrally with the first roller.

5. The bonding apparatus according to any one of claims 1 to 4,

a vertical position of an end portion of the guide portion located on the upstream side in the conveying direction is lower than a vertical position of an upper surface of the first support portion, or is the same as the vertical position of the upper surface of the first support portion.

6. The bonding apparatus according to any one of claims 1 to 4,

the first roller has a groove (763) extending parallel to the conveying direction at the outer periphery,

the guide portion has a length in the conveying direction that is greater than a length of the groove in the conveying direction.

7. Bonding device according to claim 5,

the first roller has a groove (763) extending parallel to the conveying direction at the outer periphery,

the guide portion has a length in the conveying direction that is greater than a length of the groove in the conveying direction.

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