JP6598662B2 - Loop single sewing system - Google Patents

Description

  The present invention relates to a loop piece sewing system.

  The loop piece sewing system includes a feeding device and a sewing machine. The supply device supplies a loop piece, which is a belt-like member, to the sewing machine. The sewing machine sews the loop piece on the cloth. For example, the loop piece sewing system disclosed in Patent Document 1 includes a supply device and a sewing machine. The supply device has a clamping mechanism, an X direction moving mechanism, a Y direction moving mechanism, and a Z direction moving mechanism. The clamping mechanism includes a first clamping member, a second clamping member, and an air cylinder. When the air cylinder is driven, the first clamping member and the second clamping member clamp the loop material from the vertical direction. The loop material is an example of a loop piece. The X-direction movement mechanism, the Y-direction movement mechanism, and the Z-direction movement mechanism move the clamping mechanism in the X direction, the Y direction, and the Z direction, respectively. The sewing machine includes a mounting table, a cloth presser, and a cloth conveyance mechanism. Place the cloth on the mounting table. The presser foot is pressed down from above. The cloth conveyance mechanism moves the placing table and the cloth presser in the X direction and the Y direction.

  After the clamping mechanism clamps one end of the loop material between the first clamping member and the second clamping member, the X-direction moving mechanism is driven to move the loop material to the sewing position of the sewing machine. When the Y-direction moving mechanism and the Z-direction moving mechanism are driven, the clamping mechanism moves to the other end portion side of the loop material, and the sewing machine presses one end portion of the loop material against the cloth with a cloth presser. The sewing machine sews one end of the loop material to the cloth while the cloth conveying mechanism moves the feed base and the cloth presser in the X direction and the Y direction. At this time, the X-direction moving mechanism and the Y-direction moving mechanism are driven in conjunction with the sewing operation of the sewing machine. The clamping mechanism moves in conjunction with the mounting table.

Japanese Patent No. 5372451

  When the sewing machine sews the loop material on the cloth, the clamping mechanism needs to move in conjunction with the feed base in order to suppress the twisting of the loop piece and the inclination of the loop piece. However, in the loop piece sewing system, it is necessary to drive the X-direction moving mechanism and the Y-direction moving mechanism, respectively, in conjunction with the operation in which the cloth conveying mechanism sends the feed base. Therefore, the control performed by the loop piece sewing system can be complicated.

  The objective of this invention is providing the loop piece sewing system which can suppress the twist of a loop piece and the inclination of a loop piece by simple control.

  A loop piece sewing system according to claim 1 of the present invention includes a sewing machine having a feed plate on which cloth is placed, a supply device that supplies a loop piece that is a belt-like member to the sewing machine, and the loop supplied by the supply device. A loop piece holding member that holds the piece from above and below the feed plate, and the sewing machine sews the loop piece to the cloth while the loop piece holding member holds the loop piece. In the single sewing system, the supply device includes a pair of first opposing members facing in the up-down direction and a pair of second facing members in the vertical direction with a gap horizontally between the pair of first opposing members. The other end portion of the loop piece opposite to the one end portion of the loop piece. The pair of second pairs A clamping mechanism that can be clamped by a member; a first position that supports the clamping mechanism, wherein the pair of first opposing members and the pair of second opposing members are respectively located above the feed plate; A first moving body that moves between a second position that is a position spaced apart from the feed plate in a specific direction that is a specific direction parallel to a horizontal direction with respect to the position, and wherein the sewing machine includes the feed plate A second moving body that is movable in a first predetermined direction parallel to the specific direction, a second predetermined direction parallel to the horizontal direction and perpendicular to the first predetermined direction, and A feed mechanism including a movable body that feeds the cloth in the first predetermined direction and the second predetermined direction by movement, the movable body being fixed to the second movable body together with the feed plate and the feed plate; A base end and an end opposite to the base end, the feed plate A presser arm having a top end portion on the upper side, the presser arm movably connected to the top end portion of the presser arm in the vertical direction, and a presser foot portion for pressing the cloth from the upper side, A position that is connected to the tip end portion of the presser arm so as to be movable in the up-down direction, the first moving body is moved to the second position, and the position where the cloth presser part presses the cloth. A loop pressing portion that presses the loop piece from above, the loop piece clamping member is connected to the movable body, and the one end portion of the loop piece is held when the loop pressing portion presses the loop piece. Hold it. After the loop pressing portion presses the loop piece and the loop piece holding member holds the loop piece, the sewing machine sews the loop piece to the cloth. The loop piece clamping member moves integrally with the movable body and interlocks with the operation of the sewing machine. Therefore, the relative position of the cloth placed on the feed plate and the loop piece holding member holding the loop piece is difficult to shift. Therefore, the twist of the loop piece and the inclination of the loop piece due to the shift of the position of the loop piece and the position of the cloth during sewing hardly occur. Furthermore, since the loop piece clamping member is connected to the movable body, it is not necessary to control the loop piece clamping member in conjunction with the sewing operation of the sewing machine. Therefore, the loop piece sewing system can suppress the twist of the loop piece and the inclination of the loop piece with simple control.

  A loop piece sewing system according to a second aspect of the present invention is the loop piece sewing system according to the first aspect, wherein the sewing machine is connected to the movable body and the loop piece clamping member is movable in the first predetermined direction. And a first drive unit that is provided on the support member and moves the loop piece clamping member. The loop piece clamping member can be moved relative to the movable body in the first predetermined direction. Therefore, the loop piece sewing system can adjust the position where the loop piece holding member holds the loop piece according to the type of the cloth and the loop piece.

  A loop piece sewing system according to a third aspect of the present invention is the loop piece sewing system according to the first or second aspect, wherein the loop piece clamping member includes the pair of loop pieces when the first moving body is in the second position. Each of the first opposing member and the pair of second opposing members is provided on the side opposite to the specific direction side. The loop piece sewing system can arrange the loop piece holding member without changing the existing positional relationship of the supply device with respect to the sewing machine. Therefore, the loop piece sewing system can apply the loop piece clamping member to an existing supply device.

  The loop piece sewing system according to a fourth aspect of the present invention is the loop piece sewing system according to any one of the first to third aspects, in addition to the configuration of the invention according to any one of the first to third aspects. A shaft member that rotatably supports the pair of first opposing members around an axis extending in a predetermined direction, and a second drive unit that rotates the shaft member upside down by rotating the shaft members. It is characterized by comprising. The loop piece sewing system can increase the upward swelling of the loop piece to be sewn on the cloth.

  A loop piece sewing system according to a fifth aspect of the invention is characterized in that, in addition to the configuration of the invention according to any one of the first to fourth aspects, the loop piece clamping member is connected to the cloth presser portion. To do. The presser foot drive unit can move the loop piece clamping member in the vertical direction in addition to the presser foot portion. Therefore, the loop piece sewing system can simplify the mechanism of the supply device.

  In addition to the configuration of the invention according to any one of claims 1 to 5, the loop piece sewing system of the invention according to claim 6 includes a loop presser drive unit that moves the loop presser part in the vertical direction, And a presser foot drive unit that moves the presser foot in the vertical direction. The loop pressing portion and the loop holding member can move in the vertical direction independently of each other. Therefore, the loop piece sewing system can simplify the mechanism of the sewing machine and freely execute the operation of pressing the loop piece against the cloth and the operation of holding the loop piece.

The top view of the sewing system 1 which supplies the loop piece 7 to the sewing machine 3. FIG. The front view of the 1st apparatus 10. FIG. The enlarged front view of the mounting member 11 vicinity. FIG. 3 is a right side view of a part of the configuration of the first device 10. FIG. 3 is a right side view of the first device 10. The front view of a part of structure of the 2nd apparatus 40. FIG. The front view of the 2nd clamping mechanism 170. FIG. The left view of the sewing machine 3. FIG. The perspective view of the feed mechanism 300. FIG. The perspective view of the loop piece clamping mechanism 200. FIG. The top view of the feed mechanism 300. FIG. The front view of the loop piece clamping mechanism 200. FIG. The top view of the loop piece supply apparatus 2 before the 2nd apparatus 40 receives the loop piece 7. FIG. Flow chart of creating the loop piece 7. FIG. 15 is a flowchart of creating the loop piece 7 following FIG. 14. The top view of the loop piece supply apparatus 2 with which the 2nd apparatus 40 receives the loop piece 7. FIG. The top view of the loop piece supply apparatus 2 after the 2nd apparatus 40 receives the loop piece 7. FIG. The top view of the loop piece supply apparatus 2 with the 2nd apparatus 40 in an intermediate state. The flowchart which sews the loop piece 7 to the cloth 9. FIG. FIG. 6 is a perspective view in which a loop pressing portion 350 presses a loop piece 7. The flowchart following FIG. 19 which sews the loop piece 7 to the cloth 9. FIG. The flowchart following FIG. 21 which sews the loop piece 7 to the cloth 9. FIG.

  The sewing system 1 which is an example of embodiment of this invention is demonstrated. In the following description, the top, bottom, left and right, front and back indicated by arrows in the figure are used. The sewing system 1 sews both ends in the length direction of the loop piece 7 (see FIG. 20) to the cloth 9 respectively. As an example, the cloth 9 obtained by sewing the loop piece 7 can be applied to the tongue of a shoe. A shoe wearer can insert a shoelace between the loop piece 7 and the cloth 9.

  As shown in FIG. 1, the sewing system 1 includes a loop piece supply device 2, a sewing machine 3, and a loop piece holding mechanism 200 (see FIG. 11). The loop piece supply device 2 creates the loop piece 7 from the continuous belt-like member 8 (see FIG. 14) and supplies the loop piece 7 to the sewing machine 3. The loop piece clamping mechanism 200 clamps the loop piece 7 supplied from the loop piece supply device 2 from above and below. The sewing machine 3 sews the loop piece 7 held by the loop piece holding mechanism 200 to the cloth 9 placed on the feed plate 302 (see FIG. 9).

  The loop piece supply device 2 includes a work table 5, a first device 10, and a second device 40. The work table 5 is a substantially rectangular plate-like member that extends in the front-rear direction on the right side of the sewing machine 3, and supports the first device 10 and the second device 40. The first device 10 creates a loop piece 7 having a predetermined length from the continuous strip-shaped member 8. The second device 40 supplies the loop piece 7 to the sewing machine 3.

  The first device 10 is provided at the rear end of the work table 5. As shown in FIGS. 2 and 3, the first device 10 includes an operation portion (not shown), a holding member 16, a gripping portion 17, a mounting member 11, a cutting portion 18, a pressing member 12, a moving member 38, and a driving portion. 21-25 etc. are provided. Each of the drive units 21 to 25 is an air cylinder.

  The steering portion is provided on the right side of the rear end portion of the work table 5. The operating portion winds and holds the continuous band-shaped member 8. The continuous belt-like member 8 that is fed leftward from the steering portion extends in the left-right direction. The holding member 16 is provided on the left side of the operation portion. The holding member 16 has a substantially rectangular shape extending in the left-right direction in plan view, and holds the continuous belt-like member 8 fed from the operation portion from the lower side.

  The grip portion 17 is provided on the left side of the holding member 16. The grip portion 17 is movable in the left-right direction between a grip position (see FIG. 14A) and a withdrawal position (see FIG. 3). The grip position is the right end of the movable range of the grip portion 17. The withdrawal position is the left end of the movable range of the grip portion 17. The grip portion 17 at the grip position is close to the left end portion of the holding member 16. The grip portion 17 in the retracted position is separated from the holding member 16 to the left. The grip portion 17 moves in the left-right direction by obtaining power from the drive portion 21. The drive unit 21 is fixed below the holding member 16.

  The grip portion 17 includes an upper grip member 33 and a lower grip member 34. The upper gripping member 33 faces the lower gripping member 34 from above and is movable in the vertical direction. The upper grip member 33 is connected to the drive unit 22. The drive unit 22 is an air cylinder that moves the upper gripping member 33 in the vertical direction. When the drive unit 22 is driven, the grip unit 17 is switched between a grip state (see FIG. 14B) and a release state (see FIG. 3). When the gripping portion 17 is in the gripping state, the upper gripping member 33 is located at the lower end of the movable range. When the grip portion 17 is in the released state, the upper grip member 33 is positioned at the upper end of the movable range. The gripping portion 17 in the gripping state grips the continuous band-shaped member 8 between the upper gripping member 33 and the lower gripping member 34. The grip portion 17 in the released state releases the continuous belt-like member 8 between the upper grip member 33 and the lower grip member 34.

  The gripping portion 17 in the gripping position grips the left end portion of the continuous band-shaped member 8 held by the holding member 16 by switching from the released state to the gripping state. When the gripping portion 17 moves from the gripping position to the withdrawal position, the continuous band-shaped member 8 moves to the left. Hereinafter, the movement path of the continuous strip-shaped member 8 that moves to the left of the holding member 16 is referred to as a movement path 6.

  The mounting member 11 is a plate-like member having a substantially rectangular shape in plan view, and is provided at a substantially central position in the left-right direction of the movement path 6. The mounting member 11 is below the moving region of the grip portion 17 in the left-right direction. The mounting member 11 supports the continuous belt-like member 8 that moves along the movement path 6 from below.

  The cutting part 18 is provided between the mounting member 11 and the holding member 16 in the left-right direction. The cutting part 18 cuts the continuous band-shaped member 8 with the vertical direction interposed therebetween. As shown in FIGS. 3 and 4, the cutting portion 18 includes a cradle 20 and a movable member 19. The cradle 20 and the movable member 19 face each other in the vertical direction with the movement path 6 therebetween. The cradle 20 has a substantially rectangular parallelepiped shape and is provided below the movement path 6 so as to be movable in the vertical direction. The cradle 20 has a groove portion 31 extending in the front-rear direction on the upper surface. The cradle 20 is connected to the drive unit 23. The drive unit 23 is provided below the cradle 20. The cradle 20 moves in the vertical direction by obtaining the power of the drive unit 23. The cradle 20 extends vertically between a position close to the movement path 6 from below (see FIG. 14D) and a position spaced below the movement region of the gripping portion 17 (see FIG. 3). Moving. The movable member 19 has a substantially rectangular parallelepiped shape, and is provided so as to be movable in the vertical direction above the movement path 6. The movable member 19 has a heating element 32 on the lower surface. The movable member 19 is connected to the drive unit 24. The drive unit 24 is provided above the movable member 19. The movable member 19 moves in the vertical direction by obtaining power from the drive unit 24. The movable member 19 is located between the position where the heating element 32 is below the movement path 6 (see FIG. 14D) and the position where the heating element 32 is above the movement region of the gripping portion 17 (see FIG. 3). Moving.

  When the drive units 23 and 24 are driven, the cutting unit 18 is switched between a cutting state (see FIG. 14D) and a cutting standby state (see FIG. 3). When the cutting part 18 is in a cut state, the cradle 20 is located at the upper end of the movable range, and the movable member 19 is located at the lower end of the movable range. At this time, the heating element 32 enters the groove portion 31 of the cradle 20, and the cradle 20 and the movable member 19 sandwich the continuous strip member 8 from the vertical direction. When the cutting unit 18 is in the cutting standby state, the cradle 20 is located at the lower end of the movable range, and the movable member 19 is located at the upper end of the movable range.

  As shown in FIGS. 3 and 5, the pressing member 12 is a substantially rectangular plate member in plan view, and is opposed to the mounting member 11 from above with the movement path 6 therebetween. The lateral length of the pressing member 12 is substantially the same as the lateral length of the mounting member 11. The pressing member 12 is connected to the shaft portion 108 via the arm 39. The shaft portion 108 is provided behind the pressing member 12 and extends in the left-right direction. The arm 39 is connected to the drive unit 25. The drive unit 25 is provided above the shaft unit 108. The pressing member 12 rotates about the shaft portion 108 by obtaining power from the driving unit 25 via the arm 39. The pressing member 12 at the lower end of the movable range sandwiches the continuous band-shaped member 8 between the mounting member 11 (see FIG. 14C). The pressing member 12 at the upper end of the movable range is above the moving region of the gripping part 17 (see FIG. 3).

  The moving member 38 has a cylindrical shape extending in the front-rear direction, and is provided between the mounting member 11 and the cutting portion 18 in the left-right direction. The moving member 38 is connected to a vertical drive unit (not shown). The vertical drive unit is an air cylinder. The moving member 38 moves in the vertical direction by obtaining power from the vertical drive unit. The moving member 38 at the lower end of the movable range is on the lower right side of the right end portion of the mounting member 11 (see FIG. 3). The moving member 38 at the upper end of the movable range is close to the right end portion of the mounting member 11 (see FIG. 14E).

  As shown in FIGS. 6 and 7, the second device 40 includes a shaft 53, a rotating unit 51, a first clamping mechanism 150, a second clamping mechanism 170, driving units 61 to 64, and the like. The drive parts 61-64 are air cylinders, respectively. In FIG. 6, the illustration of the second clamping mechanism 170 is omitted.

  The shaft 53 extends upward from the front end portion of the work table 5. The lower end of the shaft 53 is fixed to the work table 5 with a screw 57. The rotating part 51 has a box shape having a substantially rectangular shape in plan view, and is supported by a shaft 53 so as to be rotatable. The rotating unit 51 is connected to the driving unit 61. The drive unit 61 is fixed to the work table 5 on the right rear side of the shaft 53. The rotating part 51 rotates between the receiving position (see FIGS. 13 and 16) and the supply position (see FIGS. 1 and 18) around the shaft 53 by obtaining power from the driving part 61. The receiving position is a rotation position of the rotation unit 51 when the rotation unit 51 extends in the front-rear direction. The supply position is a rotation position of the rotation unit 51 when the rotation unit 51 extends in the left-right direction. When the rotation unit 51 rotates from the receiving position to the supply position, the rotation unit 51 rotates approximately 90 ° counterclockwise in plan view.

  The rotating portion 51 includes a support shaft 52, a support base 56, a pair of guide portions 55, a moving body 121, a rail member 122, a movable member 125, a moving base 127, a rail member 171, a moving member 172, and the like. Hereinafter, one direction of the extending direction of the rotating portion 51 is referred to as a first direction, a direction opposite to the first direction is referred to as a second direction, and the first direction and the second direction are simply referred to as an extending direction. . The first direction is the direction in which the arrow A1 shown in FIG. 1, FIG. 6, FIG. The second direction is the direction in which the arrow A2 shown in FIG. 1, FIG. 6, FIG. The extending direction is parallel to the horizontal direction. In FIG. 6, illustration of the rail member 171 and the moving member 172 is omitted.

  The support shaft 52 extends in the upper right of the shaft 53 in parallel to the horizontal direction and orthogonal to the extending direction. The support shaft 52 is provided on the second direction side and the upper side of the shaft 53. The support base 56 has a substantially rectangular plate shape in plan view, and is provided on the upper portion of the rotating unit 51. The support base 56 can rotate around the support shaft 52. The support base 56 is connected to the drive unit 62. The driving unit 62 is provided on the rotating unit 51 below the support base 56. The support base 56 rotates between a horizontal position (see FIG. 6) and an inclined position (not shown) by obtaining power from the drive unit 62. The horizontal position is a rotational position of the support base 56 extending in parallel with the extending direction. The inclined position is a rotational position of the support base 56 extending upward as it goes in the first direction.

  The pair of guide portions 55 are provided on the support base 56. The pair of guide portions 55 each extend in the extending direction. The pair of guide portions 55 are arranged in a predetermined direction with a gap horizontally. The predetermined direction is a direction parallel to the horizontal direction and orthogonal to the extending direction. Hereinafter, one direction of the predetermined direction is referred to as a third direction, and the direction opposite to the third direction is referred to as a fourth direction. The third direction is the direction in which the arrow A3 faces in FIGS. The fourth direction is the direction in which the arrow A4 faces in FIGS.

  The moving body 121 has a substantially rectangular shape in plan view, and is provided in the pair of guide portions 55. The moving body 121 is movable along the pair of guide portions 55. The moving body 121 is connected to the driving unit 63. The drive unit 63 is provided on the second direction side with respect to the pair of guide units 55. The moving body 121 moves between the retracted position (see FIGS. 13 and 18) and the extended position (see FIGS. 1 and 16) by obtaining power from the drive unit 63. The retreat position is a position that is an end in the second direction in the movable range of the moving body 121. The extending position is a position that is an end in the first direction in the movable range of the moving body 121.

  The rail member 122 is supported at a part on the third direction side of the upper surface of the moving body 121. The rail member 122 extends in a predetermined direction. The drive unit 64 is supported by the movable member 125 on the first direction side of the rail member 122. The movable member 125 is provided on the rail member 122 so as to be movable. The movable member 125 is connected to the drive unit 64. The movable member 125 is movable along the rail member 122 between a holding standby position (not shown) and a holding execution position (see FIGS. 1 and 13, etc.) by obtaining power from the drive unit 64. The holding standby position is a position that is an end in the third direction in the movable range of the movable member 125. The nipping execution position is a position that is an end in the fourth direction in the movable range of the movable member 125.

  The moving table 127 is a plate having a substantially rectangular shape in plan view, and is provided on the upper surface of the movable member 125. The moving table 127 is connected to the lift drive unit. The raising / lowering drive unit is an air cylinder provided on the movable member 125. When the elevating drive unit is driven, the moving table 127 moves between the upper end and the lower end of the movable range.

  The rail member 171 is supported by the moving body 121 on the fourth direction side of the drive unit 64 and the movable member 125. The rail member 171 extends in the extending direction. The moving member 172 is provided above the rail member 171. The moving member 172 can move relative to the movable member 125 along the rail member 171. The moving member 172 is connected to the clamping drive unit. The clamping drive unit is an air cylinder. The moving member 172 moves between a first predetermined position (see FIG. 1) and a second predetermined position (not shown) by obtaining power from the clamping drive unit. The first predetermined position is a position of the moving member 172 that contacts the end in the first direction in the rail member 171. The second predetermined position is a position of the moving member 172 that contacts the end in the second direction in the rail member 171.

  As shown in FIG. 6, the first clamping mechanism 150 is supported by the movable table 127. The first clamping mechanism 150 is movable together with the movable table 127. The first clamping mechanism 150 includes a drive unit 152, a shaft member 153, a first holding unit 154, a shaft unit 156, opposing members 157 and 158, and a drive unit 159. The driving unit 152 is a motor supported by the movable table 127. The shaft member 153 extends in the extending direction. A gear (not shown) provided on the shaft member 153 meshes with a gear (not shown) provided on the output shaft of the drive unit 152. Therefore, the shaft member 153 rotates as the drive unit 152 is driven. Hereinafter, the axis of the shaft member 153 is referred to as an axis 155. The shaft member 153 can rotate around the axis 155.

  The first holding part 154 is supported at the first direction end of the shaft member 153. The shaft portion 156 is a shaft member provided in the first holding portion 154 and extending along a predetermined direction. The opposing members 157 and 158 each have a substantially rectangular shape extending in the extending direction in plan view. The facing members 157 and 158 face each other in the vertical direction with the axis 155 therebetween. A second direction end portion of the facing member 157 is rotatably supported by the shaft portion 156. The facing member 158 is supported by the first holding portion 154. The facing member 157 is connected to the driving unit 159. The drive unit 159 is provided on the opposite side of the opposing member 158 with respect to the opposing member 157. The opposing member 157 rotates in a direction approaching or separating from the opposing member 158 around the shaft portion 156 by obtaining power from the drive unit 159.

  When the drive unit 152 rotates the shaft member 153, the first holding unit 154, the shaft unit 156, the opposing members 157 and 158, and the drive unit 159 rotate integrally. As the driving unit 152 is driven, the first clamping mechanism 150 is switched between a normal state (see FIG. 6) and a reverse state (see FIG. 21 (i)). The normal state is a state of the first clamping mechanism 150 in which the facing member 158 is above the facing member 157. The inverted state is a state of the first clamping mechanism 150 in which the facing member 158 is below the facing member 157. When the first clamping mechanism 150 is switched from the normal state to the reversed state, the positional relationship between the opposing members 157 and 158 in the vertical direction is reversed.

  As the opposing member 157 rotates with the drive of the drive unit 159, the first clamping mechanism 150 switches between the first clamping state (see FIG. 6) and the first releasing state (see FIG. 21 (f)). When the first clamping mechanism 150 is in the first clamping state, the facing member 157 contacts the facing member 158. When the first clamping mechanism 150 is in the first released state, the facing member 157 is separated from the facing member 158. The first clamping mechanism 150 in the first clamping state can clamp the end of the loop piece 7 between the first direction ends of the opposing members 157 and 158. The first clamping mechanism 150 in the first released state can release the end of the loop piece 7 between the first direction ends of the opposing members 157 and 158.

  As shown in FIGS. 1 and 7, the second clamping mechanism 170 is provided on the moving member 172. The second clamping mechanism 170 includes a second holding part (not shown), a shaft part 173, opposing members 177 and 178, and a driving part 179. The second holding portion is provided at the end of the moving member 172 in the first direction. The shaft portion 173 is a shaft member provided in the second holding portion and extending along a predetermined direction.

  The opposing members 177 and 178 each have a substantially rectangular shape extending in the extending direction in plan view. The facing member 177 faces the facing member 178 from above. The end portion in the second direction of the facing member 177 is rotatably supported by the shaft portion 173. The opposing member 178 is supported by the second holding part. The facing member 177 is connected to the driving unit 179. The drive unit 179 is an air cylinder provided above the opposing member 177. The opposing member 177 rotates in a direction approaching or separating from the opposing member 178 around the shaft portion 173 by obtaining power from the drive unit 179.

  As the opposing member 177 rotates, the second clamping mechanism 170 is switched between the second clamping state (see FIG. 7) and the second releasing state (see FIG. 19D). When the second clamping mechanism 170 is in the second clamping state, the facing member 177 contacts the facing member 178. When the second clamping mechanism 170 is in the second released state, the facing member 177 is separated from the facing member 178. The second clamping mechanism 170 in the second clamping state can clamp the end portion of the loop piece 7 between the first direction end portions of the facing members 177 and 178. The second clamping mechanism 170 in the second released state can release the end portion of the loop piece 7 between the first direction end portions of the opposing members 177 and 178.

  The opposing members 177 and 178 of the second clamping mechanism 170 are opposed to the opposing members 157 and 158 of the first clamping mechanism 150 with a gap in a predetermined direction. Hereinafter, the separation distance in the predetermined direction between the end portions of the opposing members 177 and 178 in the first direction and the end portions of the opposing members 157 and 158 in the first direction is referred to as a predetermined distance. The predetermined distance is maximum when the movable member 125 is in the holding standby position and is minimum when the movable member 125 is in the holding execution position. The maximum value of the predetermined distance is the dimension L1 in FIGS. 13, 15 (f), and 19 (a). The minimum value of the predetermined distance is the dimension L2 in FIG. The maximum value of the predetermined distance is shorter than the length of the moving path 6 of the continuous strip member 8. The minimum value of the predetermined distance is longer than the horizontal length of the mounting member 11 of the first device 10.

  The height positions of the opposing members 157, 158, 177 and 178 when the support base 56 is in the horizontal position will be described. When the first clamping mechanism 150 is in the normal state and the first released state, and the movable table 127 is at the lower end of the movable range, the position of the facing member 157 is lower than the mounting member 11 of the first device 10 ( (Refer FIG.15 (f)). At this time, the position of the facing member 158 is above the lower end of the movable range of the pressing member 12 of the first device 10 (see FIG. 15F). When the second clamping mechanism 170 is in the second released state, the position of the facing member 178 is below the placement member 11, and the position of the facing member 177 is above the lower end of the movable range of the pressing member 12 (FIG. 15 (f)).

  The sewing machine 3 shown in FIGS. 1 and 8 to 11 is an industrial sewing machine having a known configuration. In FIG. 8, illustration of a loop pressing portion 350 and a loop piece clamping mechanism 200, which will be described later, is omitted. As shown in FIGS. 1, 8, and 9, the sewing machine 3 includes a bed portion 71, a pedestal portion 72, an arm portion 73, a head portion 74, and the like. The bed portion 71 extends in the front-rear direction and has a needle plate 77 at the top. The needle plate 77 has a needle hole 78. The bed portion 71 includes a hook mechanism, a thread trimming mechanism, and the like. The hook mechanism rotates the rotary hook that houses the lower thread. The thread cutting mechanism cuts the upper thread and the lower thread inside the bed portion 71.

  The pedestal 72 extends upward from the rear end of the bed 71. The pedestal 72 has a sewing machine motor 98 and the like inside. The arm portion 73 extends forward from the upper end portion of the pedestal column portion 72. The arm portion 73 faces the upper surface of the bed portion 71. The arm portion 73 includes a main shaft 79 and the like inside. The main shaft 79 extends in the front-rear direction. The rear end of the main shaft 79 is connected to the sewing machine motor 98. The sewing machine motor 98 rotates the main shaft 79. The head portion 74 is provided at the front end portion of the arm portion 73, and the lower end portion projects downward from the arm portion 73. The head 74 includes a needle bar vertical movement mechanism and a balance driving mechanism. The needle bar vertical movement mechanism is connected to the needle bar 86. The needle bar 86 extends downward from the lower end of the head 74. A sewing needle 85 is attached to the lower end of the needle bar 86. The sewing needle 85 has a hole at the lower end. The sewing needle 85 holds the upper thread through the eye hole. The driving force of the sewing machine motor 98 is transmitted to the needle bar vertical movement mechanism and the balance driving mechanism via the main shaft 79. As the needle bar vertical movement mechanism is driven, the needle bar 86 and the sewing needle 85 move up and down. The lower end portion of the sewing needle 85 can reach the rotary hook inside the bed portion 71 through the needle hole 78.

  As shown in FIGS. 8 and 9, the sewing machine 3 includes a feed mechanism 300. The feed mechanism 300 is a mechanism that feeds the cloth 9 in the front-rear direction and the left-right direction by the movement of the second moving member 107. The feed mechanism 300 includes an X-axis motor, a pair of X-axis fixed rails 101, a first moving member 103, a pair of Y-axis fixed rails 105, a second moving member 107, a feed plate 302, a presser arm 330, a guide shaft 305, and a holding member. 307, a drive shaft 310, a Y-axis motor 312 and the like.

  The X-axis motor, the pair of X-axis fixed rails 101, the first moving member 103, the pair of Y-axis fixed rails 105, the second moving member 107, and the like are provided inside the bed portion 71. FIG. 8 illustrates one of the pair of Y-axis fixed rails 105. The X-axis motor is provided on the rear side inside the bed portion 71. The pair of X-axis fixed rails 101 are arranged in the front-rear direction in front of the X-axis motor. The pair of X-axis fixed rails 101 extend in the left-right direction, respectively. The first moving member 103 is a plate-like member having a substantially rectangular shape in plan view, and is movably provided on the pair of X-axis fixed rails 101. The first moving member 103 moves along the pair of X-axis fixed rails 101 by obtaining power from the X-axis motor. The pair of Y-axis fixed rails 105 are arranged in the left-right direction on the upper surface of the first moving member 103. The pair of Y-axis fixed rails 105 extend in the front-rear direction. The second moving member 107 is a plate-like member having a substantially rectangular shape in plan view, and is provided on the pair of Y-axis fixed rails 105. The second moving member 107 and the pair of Y-axis fixed rails 105 can move in the left-right direction along with the first moving member 103 along the pair of X-axis fixed rails 101. The second moving member 107 is movable in the front-rear direction along the pair of Y-axis fixed rails 105 by obtaining power from a Y-axis motor 312 described later. That is, the second moving member 107 is movable in the left-right direction and the front-rear direction.

  The feed plate 302 has a substantially rectangular shape in plan view. The rear end portion of the feed plate 302 is connected to the upper surface of the second moving member 107. The presser arm 330 has a proximal end portion 331, an arm portion 332, and a distal end portion 333. The base end portion 331 is fixed to the second moving member 107 with the feed plate 302 interposed therebetween. That is, the base end portion 331 is fixed to the second moving member 107 together with the feed plate 302. The base end portion 331 includes a through hole extending in the left-right direction. The arm portion 332 extends upward from the base end portion 331 and further bends and extends forward. The distal end portion 333 is an end portion on the side opposite to the proximal end portion 331 of the presser arm 330. The front end portion 333 has a substantially rectangular shape when viewed from the front, and is located above the feed plate 302. The tip portion 333 has two insertion holes. The two insertion holes are arranged in the left-right direction. Each of the two insertion holes has a long diameter in the vertical direction, and penetrates the distal end portion 333 in the front-rear direction.

  Hereinafter, the feed plate 302 and the presser arm 330 are collectively referred to as “movable body 345”. The movable body 345 can move in the left-right direction and the front-rear direction together with the second moving member 107, and feeds the cloth 9 in the left-right direction and the front-rear direction by the movement of the second moving member 107.

  The guide shaft 305 is inserted through the through hole of the base end portion 331 and extends in the left-right direction. The guide shaft 305 guides the movement of the presser arm 330 in the left-right direction. The holding member 307 extends in the left-right direction behind the presser arm 330 and is fixed to both ends of the guide shaft 305. The holding member 307 supports the presser arm 330 so as to be movable in the left-right direction. The drive shaft 310 extends rearward from the center in the left-right direction on the rear surface of the holding member 307. The drive shaft 310 is movable in the front-rear direction. The drive shaft 310 enters the pedestal 72 through a hole provided in the front wall of the pedestal 72. The Y-axis motor 312 is fixed inside the pillar portion 72. The Y-axis motor 312 is connected to the rear end portion of the drive shaft 310. The drive shaft 310 moves in the front-rear direction by obtaining power from the Y-axis motor 312. As the drive shaft 310 moves, the holding member 307, the guide shaft 305, the movable body 345, and the second moving member 107 move integrally in the front-rear direction.

  As shown in FIG. 9, the presser arm 330 includes a loop presser drive unit 342, a shaft part 343, a rotating part 344, a right drive part 346, a loop presser part 350, and the like. The loop presser drive unit 342 is an air cylinder provided on the right surface of the base end 331. The shaft portion 343 projects rightward from the right surface of the arm portion 332 in front of the loop presser driving portion 342. The rotating portion 344 is supported by the shaft portion 343 so as to be rotatable. The rotating portion 344 includes a portion extending rearward and upward from the shaft portion 343 and a portion extending forward from the shaft portion 343. The rear end portion of the rotating portion 344 is connected to the loop presser driving portion 342. The front end portion of the rotating portion 344 protrudes forward of the front end portion 333 through a right insertion hole provided in the front end portion 333. The rotating unit 344 rotates about the shaft portion 343 by obtaining power from the loop presser driving unit 342. The right drive unit 346 is a substantially L-shaped plate-like member when viewed from the left side, and is provided on the front surface of the distal end 333 so as to be vertically movable. The right driving unit 346 is connected to the front end of the rotating unit 344. The right drive unit 346 moves in the vertical direction as the rotation unit 344 rotates.

  The loop retainer 350 is plate-shaped. The loop pressing portion 350 includes an extending member 352 and a pressing member 354. The extending member 352 extends forward from the right drive unit 346, bends upward, and further extends forward. The rear end portion of the extending member 352 is fixed to the lower surface of the right drive unit 346 with screws 355 and 356. The pressing member 354 extends obliquely to the left from the front end of the extending member 352 and further extends to the left. The presser member 354 is bifurcated in the front-rear direction. The right end of the pressing member 354 is fixed to the lower surface of the extending member 352 with a plurality of screws 317. The left end portion of the pressing member 354 faces the upper surface of the feed plate 302.

  The loop pressing part 350 moves between the first separation position (see FIG. 9) and the first proximity position (see FIG. 20) by moving in the vertical direction together with the right driving part 346. The first separation position is a vertical position of the loop pressing portion 350 that the pressing member 354 faces with respect to the upper surface of the feed plate 302 with a gap. The first proximity position is a vertical position of the loop pressing portion 350 where the pressing member 354 presses the loop piece 7 and the cloth 9 toward the feed plate 302.

  As shown in FIGS. 8 and 10, the presser arm 330 includes a presser foot drive portion 362, a shaft portion 363, a rotation portion 364, a left drive portion 366, and a presser foot portion 370. Since the presser foot drive unit 362, the shaft unit 363, the rotation unit 364, and the left drive unit 366 have the same configuration as the loop presser drive unit 342, the shaft unit 343, the rotation unit 344, and the right drive unit 346, the description is simplified. Turn into. The presser foot drive unit 362 is an air cylinder provided on the left side of the presser foot drive unit 362 with the base end portion 331 interposed therebetween. The shaft portion 363 and the rotation portion 364 are provided on the left side of the shaft portion 343 and the rotation portion 344 with the arm portion 332 therebetween. The front end portion of the rotation portion 364 protrudes forward of the front end portion 333 through a left insertion hole provided in the front end portion 333. The left driving unit 366 is provided on the left side of the right driving unit 346 on the front surface of the distal end 333 so as to be movable up and down. When the presser foot drive unit 362 is driven, the rotation unit 364 rotates about the shaft unit 363 and the left drive unit 366 moves in the vertical direction.

  As shown in FIGS. 9 to 11, the presser foot 370 includes a support member 371, an extending member 372, and presser members 374 and 375. The support member 371 is a plate-like member that is long in the left-right direction in plan view, and extends leftward from the upper surface of the front end portion of the left drive unit 366. The right end portion of the support member 371 is fixed to the upper surface of the front end portion of the left drive portion 366 with a plurality of screws 317. The extending member 372 extends forward from the center in the left-right direction on the upper surface of the support member 371, bends rightward, and further extends forward. The rear end portion of the extending member 372 is fixed to the upper surface of the support member 371 with a plurality of screws 391. The pressing member 374 is provided in front of the support member 371. The pressing member 374 is a plate-like member that extends from the rear portion of the extending member 372 to the lower right and extends further to the right. The pressing member 374 faces the upper surface of the feed plate 302 behind the pressing member 354 of the loop pressing portion 350. The pressing member 375 is a plate-like member that extends from the front end of the extending member 372 to the lower right and extends further to the right. The presser member 375 faces the presser member 374 in the front-rear direction with the presser member 354 of the loop presser portion 350 interposed therebetween. The separation distance in the front-rear direction of the pressing members 374 and 375 is longer than the maximum value of the predetermined distance between the opposing members 157 and 158 and the opposing members 177 and 178.

  The presser foot 370 moves in the vertical direction together with the left driving portion 366, thereby moving between the second separation position (see FIG. 10) and the second proximity position (see FIG. 20). The second separation position is the height position of the presser foot 370 where the presser members 374 and 375 are opposed to each other with a gap with respect to the upper surface of the feed plate 302. The second proximity position is a height position of the cloth presser portion 370 in which the presser members 374 and 375 press the cloth 9 toward the feed plate 302.

  As shown in FIGS. 10 to 12, the loop piece clamping mechanism 200 is provided on the support member 371 of the presser foot 370. That is, the loop piece clamping mechanism 200 is connected to the presser arm 330 of the movable body 345. The loop piece clamping mechanism 200 includes a drive unit 201, a connecting member 206, a fixing member 208, a shaft unit 204, loop piece clamping members 211 and 212, a spring 214, a holding member 220, and a drive unit 222.

  The drive unit 201 is an air cylinder supported on the upper surface of the left end portion of the support member 371. The drive unit 201 has an arm portion 202 extending in the left-right direction. When the drive unit 201 is driven, the arm unit 202 moves in the left-right direction. The connecting member 206 is a substantially rectangular plate-like member extending in the front-rear direction when viewed from the left side. The rear end portion of the connecting member 206 is connected to the right end portion of the arm portion 202. The connecting member 206 is located on the left side of the extending member 372 of the presser foot 370. The connecting member 206 has two long holes 207 at the front end. The two long holes 207 are arranged in the front-rear direction in front of the drive unit 201. Each of the two long holes 207 has a long diameter in the vertical direction and penetrates the connecting member 206 in the left-right direction.

  The fixing member 208 is a substantially rectangular plate-like member when viewed from the right side, and is fixed to the right surface of the front end portion of the connecting member 206 with a screw 203. The fixing member 208 includes two screw holes. The two screw holes face the two long holes 207, respectively. The screw 203 is inserted into the long hole 207 and fastened to the screw hole. The fixing member 208 has a pair of support wall portions 209. Each of the pair of support wall portions 209 has a substantially rectangular shape when viewed from the front. The pair of support wall portions 209 are opposed to each other on the right side of the connecting member 206 in the front-rear direction with a gap. In FIG. 12, the support wall portion 209 at the rear of the pair of support wall portions 209 is illustrated.

  The shaft portion 204 is fixed to each of the pair of support wall portions 209. The shaft portion 204 extends in the left-right direction between the pair of support wall portions 209. Each of the loop piece clamping members 211 and 212 is a substantially rectangular plate-like member that extends in the left-right direction in plan view, and is provided at a position between the pair of support wall portions 209 in the front-rear direction. The loop piece clamping members 211 and 212 respectively extend in the front-rear direction below the extending member 372 of the presser foot 370. The right end portion of the bottom surface of the loop piece clamping member 211 is uneven along the left-right direction. The left end portion of the loop piece clamping member 211 is rotatably connected to the shaft portion 204. The loop piece clamping member 212 is opposed to the upper surface of the feed plate 302 with a gap. The right end portion of the upper surface of the loop piece clamping member 212 is uneven along the left-right direction. The spring 214 is connected to the center part in the left-right direction of each of the loop piece clamping members 211 and 212. The spring 214 biases the loop piece clamping members 211 and 212 in a direction approaching each other.

  The holding member 220 is a plate-like member having a substantially L shape when viewed from the front, and is fixed to the fixing member 208 above the loop piece clamping member 211 with a screw 219. The holding member 220 has a mounting hole at the right end. The mounting hole penetrates the holding member 220 in the vertical direction. The drive unit 222 is an air cylinder attached to the attachment hole. The drive unit 222 has an arm portion 223 extending in the vertical direction. The lower end of the arm 223 is connected to the loop piece clamping member 211 on the left side of the spring 214. The drive part 222 rotates the loop piece clamping member 211 around the shaft part 204 by moving the arm part 223 in the vertical direction.

  When the driving unit 222 is driven, the loop piece clamping mechanism 200 is switched between a loop clamping state (see FIG. 12) and a loop releasing state (see FIG. 19A). When the loop piece clamping mechanism 200 is in the clamping state, the loop piece clamping member 211 is close to the upper surface of the loop piece clamping member 212. When the loop piece clamping mechanism 200 is in the released state, the loop piece clamping member 211 is separated upward from the upper surface of the loop piece clamping member 212. The loop piece clamping mechanism 200 in the clamping state clamps the end of the loop piece 7 with the loop piece clamping members 211 and 212. The released loop piece clamping mechanism 200 releases the end of the loop piece 7 between the loop piece clamping members 211 and 212.

  When the drive unit 201 is driven, the loop piece clamping members 211 and 212 move in the left-right direction together with the arm unit 202. In other words, the support member 371 supports the loop piece clamping members 211 and 212 so as to be movable in the left-right direction. In FIG. 12, the loop piece holding members 211 and 212 at the left end of the movable range are shown by solid lines, and the loop piece holding members 211 and 212 at the right end of the movable range are shown by two-dot chain lines.

  The loop piece clamping mechanism 200 moves in the vertical direction together with the presser foot portion 370 as the left drive portion 366 of the presser arm 330 moves up and down. The loop piece clamping mechanism 200 is above the upper surface of the feed plate 302 with a gap regardless of the vertical position.

  With reference to FIG. 14 and FIG. 15, the operation in which the first device 10 creates the loop piece 7 from the continuous strip-shaped member 8 and the second device 40 receives the loop piece 7 will be described. Before the creation of the loop piece 7, the first device 10 and the second device 40 are in an initial state (see FIGS. 13 and 14A). When the first device 10 is in the initial state, the gripping portion 17 is in the gripping position in the released state, the cutting portion 18 is in the cutting standby state, the pressing member 12 is at the upper end of the movable range, and the moving member 38 is in the movable range. (Refer to FIG. 14A). When the second device 40 is in the initial state, the rotating unit 51 is in the receiving position, the support base 56 is in the horizontal position, the moving body 121 is in the retracted position, and the movable member 125 is in the holding standby position. 127 is at the upper end of the movable range, the moving member 172 is in the second predetermined position, the first clamping mechanism 150 is in the normal state and the first released state, and the second clamping mechanism 170 is in the second released state. Prior to the creation of the loop piece 7, the left end portion of the continuous band-shaped member 8 that is fed out from the operation portion of the first device 10 is placed on the left end portion of the holding member 16.

  When the drive unit 22 (see FIG. 2) is driven, the grip unit 17 is switched from the released state to the grip state. The grip portion 17 grips the left end portion of the continuous band-shaped member 8 between the upper grip member 33 and the lower grip member 34. When the driving unit 21 (see FIG. 2) is driven, the gripping unit 17 in the gripping state moves from the gripping position to the withdrawal position (see FIG. 14A). The continuous band-shaped member 8 moves to the left together with the grip portion 17 (see FIGS. 14A and 14B).

  As shown in FIG. 14C, when the drive unit 25 (see FIG. 5) is driven, the pressing member 12 moves from the upper end of the movable range to the lower end of the movable range. The pressing member 12 sandwiches the continuous band-shaped member 8 with the mounting member 11. As shown in FIG. 14D, when the drive units 23 and 24 are driven, the cutting unit 18 is switched from the cutting standby state to the cutting state. The heating element 32 of the movable member 19 sandwiches the continuous strip member 8 between the groove portions 31 of the cradle 20. The heating element 32 generates heat. Therefore, the cutting part 18 cuts the continuous strip-shaped member 8 inside the groove part 31. At this time, the continuous belt-like member 8 on the left side of the heating element 32 is the loop piece 7.

  As shown in FIG. 14E, when the drive unit 22 (see FIG. 2) is driven, the grip unit 17 is switched from the grip state to the release state. When the drive units 23 and 24 are driven, the cutting unit 18 is switched from the cut state to the cut standby state. When the vertical drive unit is driven, the moving member 38 moves from the lower end of the movable range to the upper end of the movable range. The loop piece 7 located on the right side of the pressing member 12 and the mounting member 11 extends linearly from the moving member 38 to the upper right.

  As shown in FIGS. 15 (f) and 16, when the drive unit 63 of the second device 40 is driven, the moving body 121 moves from the retracted position to the extended position. The first clamping mechanism 150 and the second clamping mechanism 170 move together with the moving body 121 in the first direction (arrow A1 direction). The facing members 157 and 158 are opposed to each other on the right side of the loop piece 7 extending rightward and upward from the moving member 38 with the moving path 6 therebetween. The facing members 177 and 178 are opposed to each other between the mounting member 11 and the grip portion 17 with the loop piece 7 therebetween.

  When the drive unit 64 (see FIG. 6) of the second device 40 is driven, the movable member 125 (see FIG. 6) moves from the holding standby position to the holding execution position. The first clamping mechanism 150 moves together with the movable member 125 while the opposing member 158 pushes the loop piece 7 extending from the moving member 38 to the upper right and leftward. When the driving unit 159 (see FIG. 6) is driven, the first clamping mechanism 150 is switched from the first released state to the first clamping state, and when the driving unit 179 (see FIG. 7) is driven, the second clamping mechanism is driven. 170 switches from the second released state to the second sandwiched state. As shown in FIG. 15 (g), the opposing members 157 and 158 fold the end of the loop piece 7 in two and sandwich it from above and below, and the opposing members 177 and 178 hold the other end of the loop piece 7 together. Clamp from above and below. Hereinafter, the end portion of the loop piece 7 folded in half is referred to as one end portion of the loop piece 7, and the end portion opposite to the one end portion is referred to as the other end portion.

  As shown in FIG. 17, when the drive unit 63 is driven, the moving body 121 moves from the extended position to the retracted position. The first clamping mechanism 150 and the second clamping mechanism 170 move integrally with the moving body 121 and pull out the loop piece 7 between the placement member 11 and the pressing member 12 forward.

  As shown in FIG. 18, when the driving unit 61 is driven, the rotating unit 51 rotates from the receiving position to the supplying position. The loop piece 7 sandwiched by the second device 40 is located to the right of the feed plate 302 of the sewing machine 3 (see FIG. 9). When the driving unit 62 (see FIG. 6) is driven, the support base 56 rotates from the horizontal position to the inclined position. The opposing members 157, 158, 177, 178 move upward together with the loop piece 7 (not shown). Hereinafter, the state of the second device 40 at that time is referred to as an intermediate state. The loop piece 7 sandwiched by the second device 40 in the intermediate state extends in the front-rear direction. One end portion of the loop piece 7 sandwiched by the second device 40 in the intermediate state is a rear end portion, and the other end portion of the loop piece 7 is a front end portion.

  The operation in which the second device 40 supplies the loop piece 7 to the sewing machine 3 and the sewing machine 3 sews the loop piece 7 to the cloth 9 will be described with reference to FIGS. 1, 9, and 19 to 22. Before the supply of the loop piece 7, the second device 40 holds the loop piece 7 in an intermediate state (see FIG. 18), and the sewing machine 3 is in the initial state. When the sewing machine 3 is in the initial state, the presser member 354 of the loop presser part 350 is in front of the sewing needle 85, the loop presser part 350 is in the first separation position, the cloth presser part 370 is in the second proximity position, The clamping mechanism 200 is in a loop release state, and the loop piece clamping members 211 and 212 are at the left end of the movable range. The pressing members 374 and 375 of the cloth presser portion 370 at the second proximity position press the cloth 9 against the feed plate 302 from above.

  As shown in FIGS. 1, 18, and 19 (a), when the driving unit 63 of the second device 40 is driven, the moving body 121 moves from the retracted position to the extended position. The facing members 157, 158, 177 and 178 move the loop piece 7 above the feed plate 302. The other end of the loop piece 7 moves to a position below the presser member 354 and the sewing needle 85. At this time, the opposing members 157, 158, 177, 178 are on the right side of the loop piece clamping members 211, 212 at the left end of the movable range. The opposing members 157 and 158 are at positions between the pressing member 374 and the loop piece clamping members 211 and 212 in the front-rear direction, and the opposing members 177 and 178 are between the loop piece clamping members 211 and 212 and the pressing member 354. It is in the position.

  As shown in FIG. 19B, the driving unit 62 (see FIG. 6) of the second device 40 is driven, so that the support base 56 (see FIG. 6) is rotated from the inclined position to the horizontal position. The opposing members 157, 158, 177, 178 move downward with the loop piece 7 sandwiched therebetween. As shown in FIG. 19C, when the loop presser driving unit 342 (see FIG. 11) of the sewing machine 3 is driven, the loop presser unit 350 is moved from the first separation position to the first proximity position. The pressing member 354 presses the other end of the loop piece 7 and the cloth 9 from above between the pressing members 374 and 375 of the cloth pressing portion 370. At this time, the opposing members 157, 158, 177, 178 maintain the state where the loop piece 7 is sandwiched.

  As shown in FIG. 19D, when the drive unit 179 of the second device 40 is driven, the second clamping mechanism 170 is switched from the second clamping state to the second released state. The opposing members 177 and 178 release the other end of the loop piece 7.

  As shown in FIG. 19 (e) and FIG. 20, when the clamping drive unit of the second device 40 is driven, the moving member 172 (see FIG. 7) moves from the second predetermined position to the first predetermined position. The opposing members 177 and 178 move to the right of the feed plate 302 (in the direction of arrow P in FIG. 20). When the drive unit 201 (see FIG. 10) of the loop piece clamping mechanism 200 is driven, the loop piece clamping members 211 and 212 move from the left end to the right end of the movable range (in the direction of arrow Q in FIG. 20). The right end portions of the loop piece clamping members 211 and 212 are opposed to each other at the front and rear positions between the facing members 157 and 158 and the sewing needle 85 with one end portion of the loop piece 7 therebetween. When the driving unit 222 (see FIG. 12) of the loop piece clamping mechanism 200 is driven, the loop piece clamping mechanism 200 is switched from the loop release state to the loop clamping state. The loop piece clamping members 211 and 212 clamp one end of the loop piece 7.

  As shown in FIG. 21 (f), when the drive unit 159 (see FIG. 6) of the second device 40 is driven, the first clamping mechanism 150 is switched from the first clamping state to the first releasing state. The opposing members 157 and 158 release one end of the loop piece 7.

  As shown in FIGS. 8 and 21G, the sewing machine motor 98 of the sewing machine 3 and the X-axis motor are driven in conjunction with each other. When the second moving member 107 moves in the left-right direction by driving the X-axis motor, the feed plate 302 moves the loop piece 7 and the cloth 9 in the left-right direction. At this time, the loop presser part 350, the loop piece clamping mechanism 200, and the cloth presser part 370 move in the left-right direction together with the feed plate 302. The main shaft 79 is rotated by driving the sewing machine motor 98. The lower end of the sewing needle 85 passes through the other end of the loop piece 7 and the cloth 9 and descends below the needle plate 77. When the lower end of the sewing needle 85 reaches the rotary hook, the rotary hook entangles the lower thread with the upper thread held by the sewing needle 85. The balance driving mechanism pulls the upper thread entangled with the lower thread onto the needle plate 77. The sewing machine 3 forms stitches on the loop piece 7 and the cloth 9. The sewing needle 85 repeatedly moves up and down while the feed plate 302 moves the loop piece 7 and the cloth 9 in the left-right direction. The sewing machine 3 forms a stitch along the left-right direction at the other end of the loop 7. Therefore, the sewing machine 3 sews the other end of the loop piece 7 to the cloth 9.

  As shown in FIG. 21 (h), after the sewing machine 3 sews the other end portion of the loop piece 7 to the cloth 9, the loop presser driving portion 342 (see FIG. 11) is driven so that the loop presser portion 350 is in the first proximity. Move from position to first separation position. When the drive unit 159 (see FIG. 6) of the second device 40 is driven, the first clamping mechanism 150 is switched from the first released state to the first clamping mechanism. The opposing members 157 and 158 sandwich one end of the loop piece 7. When the driving unit 222 (see FIG. 12) of the loop piece clamping mechanism 200 is driven, the loop piece clamping mechanism 200 is switched from the loop clamping state to the loop releasing state.

  As shown in FIG. 21 (i), the loop piece clamping members 211 and 212 release one end of the loop piece 7. When the drive unit 201 is driven, the loop piece clamping members 211 and 212 move from the right end of the movable range to the left end of the movable range, and retract from the loop piece 7 to the left. When the drive unit 152 (see FIG. 6) is driven, the first clamping mechanism 150 is switched from the normal state to the inverted state. The opposing members 157 and 158 rotate one end portion of the loop piece 7 about 180 ° clockwise around the axis 155 (see FIG. 4) in the left side view.

  As shown in FIG. 21 (j), when the Y-axis motor 312 (see FIG. 8) of the sewing machine 3 is driven, the feed mechanism 300 (see FIG. 8) causes the loop presser portion 350, the cloth presser portion 370, and the loop piece to be clamped. The mechanism 200 and the movable body 345 (see FIG. 10) are moved backward integrally. The other end of the loop piece 7 moves downward and rearward at one end of the loop piece 7. The other end of the loop piece 7 swells in a substantially C shape when viewed from the left.

  As shown in FIG. 22 (k), when the raising / lowering drive unit of the second device 40 is driven, the movable table 127 (see FIG. 6) moves from the upper end to the lower end of the movable range. The facing members 157 and 158 descend to the position close to the cloth 9 from above.

  As shown in FIG. 22 (l), when the loop presser drive unit 342 (see FIG. 11) of the sewing machine 3 is driven, the loop presser unit 350 moves from the first separation position to the first proximity position. The pressing member 354 presses one end of the loop piece 7 and the cloth 9 against the feed plate 302 in front of the sewing needle 85. When the drive unit 159 (see FIG. 6) of the second device 40 is driven, the first clamping mechanism 150 is switched from the first clamping state to the first release mechanism. The opposing members 157 and 158 release one end of the loop piece 7. When the drive unit 63 (see FIG. 6) of the second device 40 is driven, the moving body 121 (see FIG. 6) moves from the extended position to the retracted position. The first clamping mechanism 150 moves together with the second clamping mechanism 170 to a position away from the feed plate 302 to the right.

  As shown in FIG. 22 (m), the sewing machine motor 98 and the X-axis motor are driven in conjunction with each other. The sewing needle 85 moves up and down as the sewing machine motor 98 is driven. As the X-axis motor is driven, the feed plate 302 moves the loop piece 7 in the left-right direction. The sewing machine 3 sews one end of the loop piece 7 to the cloth 9 along the left-right direction. The sewing machine 3 sews both ends of the loop piece 7 to the cloth 9.

  As described above, when the sewing machine 3 sews the other end of the loop piece 7 extending in the front-rear direction to the cloth 9, the loop piece holding members 211 and 212 move in the left-right direction together with the movable body 345. Therefore, the relative positions of the cloth 9 fed by the feed plate 302 and the loop piece clamping members 211 and 212 that sandwich one end of the loop piece 7 are difficult to shift. For example, when the loop piece clamping mechanism 200 cannot move on the right side of the sewing machine 3, the loop piece clamping mechanism 200 cannot move integrally with the movable body 345, and the cloth 9 and the loop that the feed plate 302 of the movable body 345 feeds. The relative positions of the single clamping members 211 and 212 are shifted. At this time, an excessive force in the direction in which the cloth 9 moves acts on the loop piece 7. Therefore, the loop piece 7 may be twisted. Further, the length of the loop piece 7 changes in a direction intersecting with the front-rear direction due to an excessive force acting on the loop piece 7, so that the loop piece 7 may be inclined with respect to the cloth 9. . However, in this embodiment, since the loop piece clamping members 211 and 212 move integrally with the movable body 345, the force directed in the direction in which the cloth 9 moves is unlikely to act on the loop piece 7. Therefore, the sewing system 1 can suppress the twist of the loop piece 7 and the inclination of the loop piece 7 due to the shift of the position of the loop piece 7 and the position of the cloth 9 during sewing. Since the loop piece clamping mechanism 200 is supported by the support member 371 of the presser arm 330, control for the loop piece clamping members 211 and 212 to be interlocked with the sewing operation of the sewing machine 3 is unnecessary. Therefore, the sewing system 1 can suppress the twist of the loop piece 7 and the inclination of the loop piece 7 with simple control.

  When the driving unit 201 is driven, the loop piece clamping members 211 and 212 can be moved relative to the movable body 345 in the left-right direction. Therefore, the sewing system 1 can adjust the position at which the loop piece clamping members 211 and 212 hold the loop piece 7 in accordance with the thicknesses of the cloth 9 and the loop piece 7 and various kinds of fabrics.

  The loop piece clamping members 211 and 212 at the left end of the movable range are positioned on the left side with respect to the opposing members 157, 158, 177, and 178 moved to above the feed plate 302, respectively. The sewing system 1 can arrange the loop piece clamping members 211 and 212 without changing the existing positional relationship of the loop piece supply device 2 with respect to the sewing machine 3. Therefore, the sewing system 1 can apply the loop piece clamping members 211 and 212 to the existing loop piece supply device 2.

  After the first clamping mechanism 150 is switched from the normal state to the inverted state, the feed mechanism 300 moves the cloth 9 and the other end of the loop piece 7 backward. The portion on the other end side of the loop piece 7 is curved in a substantially C shape when viewed from the left side. Therefore, the sewing system 1 can increase the swelling toward the upper side of the other end of the loop piece 7. When the cloth 9 sewed with the loop piece 7 is, for example, a shoe tongue, a shoe wearer can easily insert a shoelace between the loop piece 7 and the cloth 9.

  The loop piece clamping mechanism 200 is supported by a support member 371. That is, the loop piece clamping members 211 and 212 are connected to the presser foot 370. The presser foot drive unit 362 can move the loop piece clamping members 211 and 212 in the vertical direction in addition to the presser foot portion 370. Therefore, the sewing system 1 can simplify the mechanism of the loop piece supply device 2.

  When the loop presser drive unit 342 is driven, the loop presser unit 350 moves up and down, and when the presser foot drive unit 362 is driven, the presser foot unit 370 moves up and down. The loop pressing portion 350 and the loop piece clamping members 211 and 212 can move up and down independently of each other. Therefore, the sewing system 1 can simplify the mechanism of the sewing machine 3 and can freely perform the operation of pressing the loop piece 7 against the cloth 9 and the operation of holding the loop piece 7.

  In the above description, the sewing system 1 corresponds to the loop piece sewing system of the present invention. The loop piece supply device 2 corresponds to the supply device of the present invention. The opposing members 157 and 158 correspond to a pair of first opposing members of the present invention. The opposing members 177 and 178 correspond to a pair of second opposing members of the present invention. The first clamping mechanism 150 and the second clamping mechanism 170 correspond to the clamping mechanism of the present invention. The moving body 121 corresponds to the first moving body of the present invention. The second moving member 107 corresponds to the second moving body of the present invention. The drive unit 201 corresponds to the first drive unit of the present invention. The drive unit 222 corresponds to the second drive unit of the present invention. The right direction corresponds to the specific direction of the present invention. The left-right direction corresponds to the first predetermined direction of the present invention. The front-rear direction corresponds to the second predetermined direction of the present invention. The retracted position of the moving body 121 when the rotating unit 51 is in the supply position corresponds to the second position of the present invention. The extending position of the moving body 121 when the rotating unit 51 is in the supply position corresponds to the first position of the present invention.

  The sewing system 1 can be variously changed. The loop piece clamping mechanism 200 may be supported by the feed plate 302 instead of being supported by the support member 371. Even at this time, the loop piece clamping mechanism 200 can move in conjunction with the sewing operation of the sewing machine 3. The loop piece clamping mechanism 200 may not include the drive unit 201.

  The loop piece clamping members 211 and 212 at the left end of the movable range may be positioned on the right side rather than on the left side with respect to the opposing members 157, 158, 177 and 178 moved to above the feed plate 302. .

  The opposing members 177 and 178 may be folded in two and sandwiched in the vertical direction instead of sandwiching the other end portion of the loop piece 7 in a linearly extending state. The rotation angle of the opposing members 157 and 158 when the first clamping mechanism 150 is switched from the normal state to the reverse state may be less than 180 ° or may exceed 180 °.

DESCRIPTION OF SYMBOLS 1 Sewing system 2 Loop piece supply apparatus 3 Sewing machine 7 Loop piece 8 Continuous belt-like member 9 Cloth 107 Second moving member 121 Moving body 150 First clamping mechanism 153 Shaft member 155 Axis 157, 158 Opposing member 170 Second clamping mechanism 177, 178 Opposing member 201 Drive unit 222 Drive unit 300 Feed mechanism 330 Presser arm 331 Base end portion 333 Tip portion 342 Loop presser drive unit 345 Movable body 350 Loop presser portion 362 Work clamp drive unit 370 Work presser portion 371 Support member

Claims (6)

A sewing machine having a feed plate on which cloth is placed, a supply device for supplying a loop piece, which is a belt-like member, to the sewing machine, and holding the loop piece supplied by the supply device from above and below the feed plate from above and below. A loop piece sewing system in which the sewing machine sews the loop piece to the cloth in a state where the loop piece holding member holds the loop piece.
The supply device includes:
A pair of first facing members facing in the up-down direction; and a pair of second facing members facing in the up-down direction with a gap horizontally between the pair of first facing members, and the length of the loop piece The one end portion in the vertical direction can be folded between the pair of first opposing members, and the other end portion of the loop piece opposite to the one end portion can be sandwiched between the pair of second opposing members. A clamping mechanism;
A first position for supporting the clamping mechanism, wherein the pair of first opposing members and the pair of second opposing members are respectively located above the feed plate, and parallel to the first position in the horizontal direction. A first moving body that moves between a second position that is a position away from the feed plate in a specific direction that is a specific direction, and
The sewing machine
A second moving body that supports the feed plate and is movable in a first predetermined direction parallel to the specific direction, and in a second predetermined direction parallel to the horizontal direction and orthogonal to the first predetermined direction;
A feeding mechanism comprising a movable body that feeds the cloth in the first predetermined direction and the second predetermined direction by the movement of the second moving body;
The movable body is
The feed plate;
A presser arm having a base end fixed to the second moving body together with the feed plate, and a tip end on the opposite side of the base end and above the feed plate;
The presser arm is
A cloth presser that is connected to the tip of the presser arm so as to be movable in the vertical direction, and presses the cloth from above;
A position that is connected to the tip end portion of the presser arm so as to be movable in the up-down direction, the first moving body is moved to the second position, and the position where the cloth presser part presses the cloth. And a loop presser part for pressing the loop piece from above,
The loop piece sewing system is characterized in that the loop piece clamping member is connected to the movable body and clamps the one end portion of the loop piece when the loop pressing portion presses the loop piece. The sewing machine
A support member coupled to the movable body and supporting the loop piece clamping member movably in the first predetermined direction;
The loop piece sewing system according to claim 1, further comprising: a first drive unit that is provided on the support member and moves the loop piece clamping member. The loop piece clamping member is
Provided on the opposite side to the specific direction side with respect to each of the pair of first opposing members and the pair of second opposing members when the first moving body is in the second position. The loop piece sewing system according to claim 1 or 2, characterized in that The clamping mechanism is
A shaft member that rotatably supports the pair of first opposing members around the axis extending in the first predetermined direction between the pair of first opposing members;
The loop piece sewing system according to any one of claims 1 to 3, further comprising: a second drive unit configured to turn the pair of first opposing members upside down by rotating the shaft member. .   The loop piece sewing system according to any one of claims 1 to 4, wherein the loop piece clamping member is connected to the cloth presser portion. A loop presser drive unit that moves the loop presser part in the vertical direction;
The loop-piece sewing system according to any one of claims 1 to 5, further comprising: a presser foot drive unit that moves the presser foot portion in the vertical direction.

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