HK1211997B

HK1211997B - Supply device and sewing system

Info

Publication number: HK1211997B
Application number: HK15112744.7A
Authority: HK
Inventors: 早川范一; 宫地康次
Original assignee: 兄弟工业株式会社; 哈姆斯株式会社
Priority date: 2014-02-28
Filing date: 2015-12-28
Publication date: 2018-06-29

Description

Supply device and sewing system

Technical Field

The invention relates to a feeding device and a sewing system.

Background

There is a tab supply device that supplies a tab to a sewing device. A waistband or the like passes under the tab. The tab supply device disclosed in japanese patent application laid-open No. 2003-311059 cuts the continuous strip-shaped member with a cutting device to produce a strip-shaped member having a predetermined length. The belt loop sheet supply device clamps both end portions of the belt-like member with a pair of holding portions, respectively. The pair of holding parts is fork-shaped. The tab sheet supply device rotates the holding portion to bend both end portions of the belt-like member, thereby producing a tab sheet. The belt loop sheet supply device supplies a belt loop sheet to the sewing device.

The tab supply device rotates the grip portion to bend both end portions of the tab. Therefore, the length of the bent portion may be relatively large. When the length of the bent portion is large and the length of the belt-like member is small, both end portions of the bent portion may come together. At this time, a member such as a belt may be difficult to pass through from the inside of the belt loop.

Disclosure of Invention

The invention aims to provide a feeding device and a sewing system, which can feed a belt loop sheet with a length shorter than that of a bending part in the prior art to a sewing device.

The feeding device according to claim 1 is a feeding device for feeding a tab sheet formed by bending both end portions of a belt-like member in a longitudinal direction to a sewing device, the feeding device including: a placement section having a placement surface on which a longitudinal center portion of the belt-shaped member can be placed; a pressing portion capable of pressing the belt-like member placed on the placing portion from an upper side; and a pair of clamping portions, each of which has a first member and a second member, the first member and the second member being rod-shaped members extending in a width direction of the belt-shaped member, the width direction being orthogonal to the longitudinal direction; a length of the placement portion in a direction parallel to a longitudinal direction of the belt-shaped member is smaller than a length of the belt-shaped member; the pair of holding portions bend both end portions in the longitudinal direction of the belt-like member pressed by the pressing portion along both ends in a direction parallel to the longitudinal direction of the belt-like member of the placement portion, respectively, to produce the belt tab, and the pair of holding portions hold both end portions in the longitudinal direction of the belt tab from above and below by the first member and the second member, respectively.

When the pressing portion presses the belt-like member, the belt-like member is bent along both ends of the placing portion by the pair of holding portions to produce a belt loop sheet. In this case, the supply device can suppress the band-shaped member from being deflected as compared with the case where the band-shaped member is not pressed by the pressing portion. The pair of clamping portions can more reliably bend the belt-shaped member along the two ends of the placing portion. The pair of holding portions hold both end portions of the belt loop sheet in the longitudinal direction. The supply device can shorten the length of the bent portion compared to when the holding portion is rotated to bend both end portions of the belt-shaped member. The supply device can supply the sewing device with a belt loop sheet having a length shorter than that of a conventional bending portion.

In the supply device according to claim 2, the pair of holding portions hold the both end portions of the belt loop sheet at positions in a plane passing through the both ends of the mounting portion and orthogonal to the mounting portion, respectively. The supply device bends both ends of the belt-like member along both ends of the placement portion in the longitudinal direction. Both end portions of the belt loop sheet in the longitudinal direction are close to both ends of the placement portion. The feeding device can shorten the length of the bent portion when clamping the position of the belt loop sheet near both end portions, compared to when clamping the position of the belt loop sheet far from both end portions. The pair of holding portions hold both end portions of the belt loop sheet at positions corresponding to both ends of the placement portion, respectively. The feeding device can shorten the length of the bent portion.

The supply device according to claim 3 or 4 further includes: a pair of rod-shaped moving rods which are provided at positions separated upward from the placement portion and outside the two ends of the placement portion in the longitudinal direction of the belt-shaped member, and which extend in the width direction of the belt-shaped member; a moving bar driving unit that switches positions of the pair of moving bars between a position separated upward from the placement unit and a position on an extension plane of the placement unit; a first clamp driving unit that moves each of the pair of clamp units in a longitudinal direction of the belt-shaped member between a position outside the two ends of the placement unit and a position inside the two ends of the placement unit; a second clamp driving unit configured to move the first member located on the upper side of the pair of upper and lower first members and the second member located on the lower side of the pair of upper and lower second members; a first movement control unit that moves the pair of moving rods to lower positions by the moving rod driving unit when the pressing unit presses the belt-shaped member, and presses the both end portions of the belt-shaped member, thereby bending the both end portions of the belt-shaped member along the placing unit and maintaining the bent state; a first clamping control section that moves the pair of shift levers to the inner side position by the first clamping drive section in a state where the first member is located above the placement section and the second member is located below the placement section after the first shift control section moves the pair of shift levers by the shift lever drive section, and further bends the both end portions of the belt-shaped member, which are bent by the pair of shift levers and remain bent, toward the inner side so as to be substantially parallel to the placement section, respectively, thereby manufacturing the belt loop sheet; and a second clamping control portion that moves the first member of each of the pair of clamping portions toward the second member by the second clamping driving portion after the first clamping control portion moves the pair of clamping portions by the first clamping driving portion, and clamps the both end portions of the tab sheet from the up-down direction. The pair of moving rods bend the band-shaped member along the placing portion and maintain the bent state. The pair of holding portions further inwardly bend both end portions of the belt-like member substantially parallel to the placement portion, respectively, to produce a belt loop sheet. The feeding device bends the belt-like member in two stages using a pair of moving rods and a pair of clamping portions. The supply device can reliably bend the belt-shaped member along the placement portion, as compared with when bending the belt-shaped member along the placement portion using only a pair of clamping portions.

The feeding device of technical scheme 5 ~ 8 still includes: a support portion that supports the pair of clamping portions; a third holding drive portion that can move the pair of holding portions in the width direction of the belt loop sheet; a support shaft that supports the support portion so that the support portion can swing; a swinging portion that can swing the support portion about the support shaft; a swing control portion for swinging the support portion by the swing portion from a holding position where the pair of holding portions respectively oppose the placing portion to a supply position where the pair of holding portions respectively oppose the sewing device when the third holding drive portion moves the pair of holding portions in the width direction of the tab sheet to separate the tab sheet from the placing portion; and a fourth clamping control portion that moves the pair of clamping portions in the width direction of the tab sheet by the third clamping drive portion to supply the tab sheet to the sewing device when the swing control portion swings the support portion to the supply position by the swing portion. The supply device performs an operation of holding the belt loop sheet and an operation of supplying the belt loop sheet to the sewing device. In the feeding device, the structure of holding the tab and the structure of feeding the tab to the sewing device need not conflict with each other. The support portion of the supply device is swingable about the support shaft. The supply device can simplify the structure and operation of the placement portion, the pressing portion, and the pair of nip portions, as compared to when the support portion cannot be swung.

The supply device according to claim 9 further comprises: a supply unit for supplying the continuous belt-like member to the placement unit; a cutting unit configured to cut the continuous belt-shaped member supplied by the supply unit to produce the belt-shaped member; and a cutting control unit for cutting the continuous belt-like member by the cutting unit when the pressing unit presses the continuous belt-like member. The feeding device cuts the continuous belt-like member while the pressing portion presses the continuous belt-like member. The feeding device can suppress the distortion of the cut surface in the width direction of the continuous belt-shaped member (belt-shaped member). The feeding device can improve the finished product quality of the belt loop sheet.

The supply device according to claim 10 further comprises: a third holding drive portion that can move the pair of holding portions in the width direction of the belt loop sheet; a second movement control unit that moves the pair of shift levers from a position on an extension plane of the placement unit to a position away from the placement unit upward by the shift lever driving unit after the second clamping control unit clamps the two end portions of the strap piece from above and below by the second clamping driving unit; a pressing control unit that moves the pair of moving bars upward by the moving bar driving unit and then separates the pressing unit from the placement unit; and a third holding control portion that moves the pair of holding portions in the width direction of the tab by the third holding drive portion after the pressing control portion moves the pressing portion away from the placing portion, and moves the tab away from the placing portion. After the pressing portion is away from the placing portion, the pair of gripping portions moves in the width direction of the belt loop sheet. The feeding device can smoothly separate the tab from the placing portion, as compared to when the pair of holding portions are moved in the width direction of the tab with the pressing portion pressing the tab. The supply device can suppress the bending portion of the belt loop sheet from being skewed with respect to the width direction of the belt loop sheet. The feeding device can improve the finished product quality of the belt loop sheet.

The supply device according to claim 11 further comprises: a third holding drive portion that can move the pair of holding portions in the width direction of the belt loop sheet; a fourth clamp control part which can make the pair of clamp parts move to the needle plate of the sewing device by the third clamp driving part; and a fifth nip control portion which moves the pair of nip portions to the outside in the longitudinal direction of the belt loop sheet by the first nip drive portion when the fourth nip control portion moves the pair of nip portions onto the needle plate by the third nip drive portion and the presser foot portion of the sewing device presses the belt loop sheet located above the needle plate. When the presser foot of the sewing device presses the belt loop sheet, the supply device moves the holding portion outward in the longitudinal direction of the belt loop sheet. The feeding device can suppress both end portions in the longitudinal direction of the belt loop sheet from being skewed with respect to the width direction of the belt loop sheet, as compared with when the holding portion is moved in the width direction of the belt loop sheet. The supply device can improve the quality of finished products of sewing of the belt loop sheet.

In the feeding device according to claim 12, the fourth grip control portion can move the pair of gripping portions above a needle plate of the sewing device by the third grip driving portion to feed the tab sheet to the sewing device; the feeding device further includes a fifth nip control portion that moves the pair of nip portions to the outside in the longitudinal direction of the belt loop sheet by the first nip driving portion when the fourth nip control portion moves the pair of nip portions to the upper side of the needle plate by the third nip driving portion and the presser foot portion of the sewing device presses the belt loop sheet located above the needle plate. When the presser foot of the sewing device presses the belt loop sheet, the supply device moves the holding portion outward in the longitudinal direction of the belt loop sheet. The feeding device can suppress both end portions in the longitudinal direction of the belt loop sheet from being skewed with respect to the width direction of the belt loop sheet, as compared with when the holding portion is moved in the width direction of the belt loop sheet. The supply device can improve the quality of finished products of sewing of the belt loop sheet.

The sewing system according to claim 13 includes a supplying device that supplies the sewing device with a tab piece formed by bending both end portions of the belt-like member in the longitudinal direction; the sewing device sews the belt loop sheet to a sewing object, and the sewing system is characterized by comprising: a placement section having a placement surface on which a longitudinal center portion of the belt-shaped member can be placed; a pressing portion capable of pressing the belt-like member placed on the placing portion from an upper side; and a pair of clamping portions, each of which has a first member and a second member, the first member and the second member being rod-shaped members extending in a width direction of the belt-shaped member, the width direction being orthogonal to the longitudinal direction; a length of the placement portion in a direction parallel to a longitudinal direction of the belt-shaped member is smaller than a length of the belt-shaped member; the pair of holding portions bend both end portions in the longitudinal direction of the belt-like member pressed by the pressing portion along both ends in a direction parallel to the longitudinal direction of the belt-like member of the placement portion, respectively, to produce the belt tab, and the pair of holding portions hold both end portions in the longitudinal direction of the belt tab from above and below by the first member and the second member, respectively.

When the pressing portion presses the belt-like member, the belt-like member is bent along both ends of the placing portion by the pair of holding portions to produce a belt loop sheet. In this case, the sewing system can suppress the band-shaped member from being deflected as compared with the case where the band-shaped member is not pressed by the pressing portion. The pair of clamping portions can more reliably bend the belt-shaped member along the two ends of the placing portion. The pair of holding portions hold both end portions of the belt loop sheet in the longitudinal direction. The sewing system can shorten the length of the bent portion compared to when the holding portion is rotated to bend both end portions of the belt-like member. The sewing system can supply a belt loop sheet having a length shorter than that of a conventional bent portion to a sewing device.

The sewing system of claim 14 further comprises: a pair of rod-shaped moving rods which are provided at positions separated upward from the placement portion and outside the two ends of the placement portion in the longitudinal direction of the belt-shaped member, and which extend in the width direction of the belt-shaped member; a moving bar driving unit that switches positions of the pair of moving bars between a position separated upward from the placement unit and a position on an extension plane of the placement unit; a first clamp driving unit that moves the pair of clamp units in a longitudinal direction of the belt-shaped member between positions outside the two ends of the placement unit and positions inside the two ends of the placement unit; a second clamping drive portion which can move the first member on the upper side of the pair of first members and the second member on the lower side of the pair of clamping portions; a first movement control unit that moves the pair of moving rods to lower positions by the moving rod driving unit when the pressing unit presses the belt-shaped member, and presses the both end portions of the belt-shaped member, thereby bending the both end portions of the belt-shaped member along the placing unit and maintaining the bent state; a first clamping control section that moves the pair of shift levers to the inner side position by the first clamping drive section in a state where the first member is located above the placement section and the second member is located below the placement section after the first shift control section moves the pair of shift levers by the shift lever drive section, and further bends the both end portions of the belt-shaped member, which are bent by the pair of shift levers and remain bent, toward the inner side so as to be substantially parallel to the placement section, respectively, thereby manufacturing the belt loop sheet; and a second clamping control portion that moves the first member of each of the pair of clamping portions toward the second member by the second clamping driving portion after the first clamping control portion moves the pair of clamping portions by the first clamping driving portion, and clamps the both end portions of the belt loop sheet from the up-down direction. The pair of moving rods bend the band-shaped member along the placing portion and maintain the bent state. The pair of holding portions further inwardly bend both end portions of the belt-like member substantially parallel to the placement portion, respectively, to produce a belt loop sheet. The sewing system bends a belt-like member in two stages using a pair of moving bars and a pair of clamping portions. The sewing system can reliably bend the belt-shaped member along the placement portion, compared to when bending the belt-shaped member along the placement portion using only a pair of clamping portions.

The sewing system according to claim 15 is characterized in that the sewing system further comprises: a third holding drive portion that can move the pair of holding portions in the width direction of the belt loop sheet; a fourth clamp control part which can make the pair of clamp parts move to the needle plate of the sewing device by the third clamp driving part; a presser foot portion capable of pressing the belt loop sheet located above the needle plate of the sewing device from an upper side; a presser foot control section that presses the belt loop piece held by the pair of holding sections from above by the presser foot when the fourth holding control section moves the pair of holding sections onto the needle plate by the third holding drive section; and a fifth nip control portion that moves the pair of nip portions outward in the longitudinal direction of the tab sheet by the first nip driving portion when the presser foot portion control portion presses the tab sheet by the presser foot portion. When the presser foot presses the belt loop piece, the sewing system moves the holding portion outward in the longitudinal direction of the belt loop piece. The sewing system can suppress both end portions in the longitudinal direction of the belt loop sheet from being skewed with respect to the width direction of the belt loop sheet as compared with when the holding portion is moved in the width direction of the belt loop sheet. The sewing system can improve the quality of finished products of sewing the belt loop sheet.

In the sewing system of claim 16, the presser foot presses a range including a part of the pair of bent portions of the belt loop sheet from above. The sewing system can suppress the bending portion of the belt loop sheet from moving outward in the longitudinal direction of the belt loop sheet together with the pair of clamping portions when the pair of clamping portions move outward in the longitudinal direction of the belt loop sheet. The sewing system can suppress a change in the length of the belt loop sheet in the longitudinal direction compared to the length of the belt loop sheet before the pair of clamping portions move. The sewing system can improve the quality of finished products of sewing the belt loop sheet.

The sewing system according to claim 17 further comprises a release control portion that releases the pair of gripping portions from gripping the belt loop piece by the second gripping driving portion, respectively, when the presser foot portion is caused by the presser foot control portion to press the belt loop piece; when the release control portion releases the grip of each of the pair of gripping portions on the belt loop sheet, the fifth grip control portion moves each of the pair of gripping portions to the outside of the belt loop sheet by the first grip driving portion. The sewing system can more reliably suppress the bending portion of the belt tab from moving together with the pair of holding portions than when the pair of holding portions are moved outward in the longitudinal direction of the belt tab, respectively, in a state where the belt tab is held between the pair of holding portions, respectively. The sewing system can improve the quality of finished products of sewing the belt loop sheet.

Drawings

Fig. 1 is a plan view of the sewing system 1 with the support portion 51 in the supply position and the support table 54 in the extended position.

Fig. 2 is a front view of the first device 10 of the tab feeding device 2.

Fig. 3 is an enlarged front view of a portion near the placement portion 11 in fig. 2 when the pair of holding portions 41 and 46 hold the belt loop sheet 7 from above and below.

Fig. 4 is a right side view of a partial structure of the first device 10 with the knife 19 in the standby position.

Fig. 5 is a right side view of the first device 10 with the pressing portion 12 and the pair of moving bars 13, 14 in the standby position.

Fig. 6 is a front view of the second device 40 and the sewing machine 3 in the state of fig. 1.

Fig. 7 is a plan view of the first device 10 and the second device 40 when the support portion 51 is located at the clamping position and the support table 54 is located at the standby position.

Fig. 8 is a block diagram of the sewing system 1.

Fig. 9 is a flowchart of the sewing control process.

Fig. 10 is a right side view of the second device 40 in the state of fig. 7.

Fig. 11 is a view schematically showing a positional relationship among the placement portion 11, the belt-like member 8, the pressing portion 12, and the pair of moving rods 13 and 14 when the pressing portion 12 presses the belt-like member 8.

Fig. 12 is a view schematically showing a positional relationship among the placement portion 11, the belt-like member 8, the pressing portion 12, and the pair of moving rods 13 and 14 when the pair of moving rods 13 and 14 press both end portions 86 and 87 of the belt-like member 8.

Fig. 13 is a plan view of the first device 10 and the second device 40 when the support portion 51 is located at the clamping position and the support table 54 is moved to the extended position.

Fig. 14 is a diagram schematically showing a positional relationship among the placement portion 11, the belt-like member 8, the pressing portion 12, the pair of moving rods 13, 14, and the tip end portions of the pair of gripping portions 41, 46 when the pair of gripping portions 41, 46 move to positions corresponding to both ends 111, 112 in the longitudinal direction 89 of the placement portion 11.

Fig. 15 is a plan view of the first device 10 and the second device 40 in the state of fig. 14.

Fig. 16 is a diagram schematically showing the positional relationship between the placement portion 11, the tab 7, the pressing portion 12, the pair of shift levers 13, 14, and the tip portions of the pair of gripping portions 41, 46 when both end portions 68, 69 of the tab 7 in the longitudinal direction 89 are gripped from above and below by the pair of gripping portions 41, 46.

Fig. 17 is a plan view of the first device 10 and the second device 40 when the loop sheet 7 is sandwiched by the pair of sandwiching portions 41, 46 and the support table 54 moves to the standby position.

Fig. 18 is a plan view of the sewing machine 3 and the second device 40 when the support portion 51 is located at the supply position and the support table 54 is located at the standby position.

Fig. 19 is a left side view of tab 7 and presser foot 82 when presser foot 82 presses tab 7.

Fig. 20 is a left side view of tab 7 and presser foot 82 as first members 42, 47 are moved away from second members 43, 48, respectively.

Fig. 21 is a left side view of the tab 7, presser foot 82, and the pair of grip portions 41, 46 when the pair of grip portions 41, 46 are moved to the outside in the longitudinal direction 88 of the tab 7.

Fig. 22 is a left side view of tab 7 and presser foot 82 when sewing machine 3 sews tab 7 to cloth 9.

Detailed Description

An embodiment of the present invention is explained with reference to the drawings. The configurations of the sewing system 1, the tab feeding device 2, and the sewing machine 3 are explained with reference to fig. 1 to 3. In the following description, the upper and lower sides, the left and right sides, and the front and rear sides shown by arrows in the drawings are used.

The sewing system 1 makes a belt loop sheet 7 for passing a string-like member. Then, the sewing system 1 sews the belt loop sheet 7 to a sewing object (cloth or leather). The sewing system 1 includes a tab sheet supply device 2 and a sewing machine 3. The belt loop sheet 7 is a member in which a belt-like member 8 (see fig. 11) is bent in the longitudinal direction of the belt-like member 8. The tab sheet supply device 2 folds both ends of the belt-like member 8 in the longitudinal direction to produce tab sheets 7. The tab sheet supply device 2 supplies a tab sheet 7 to the sewing machine 3. The sewing machine 3 sews both longitudinal end portions of the tab 7 supplied from the tab supply device 2 to the sewing object. The tab sheet supply device 2 is disposed adjacent to the sewing machine 3.

The tab sheet feeding device 2 includes a first device 10, a second device 40, and a driving portion 66. In a plan view, the longitudinal direction (left-right direction) of the first device 10 is substantially perpendicular to the longitudinal direction (front-back direction) of the sewing machine 3. The first apparatus 10 manufactures a belt-like member 8 having a predetermined length from a continuous belt-like member, and bends the belt-like member 8. The continuous belt-like member is a continuous belt-like member made of, for example, cloth or leather.

The first device 10 mainly includes a supply unit 15, a cutting unit 18, a placement unit 11, a pressing unit 12, a pair of moving bars 13 and 14, and driving units 21 to 27 (see fig. 8). The supply unit 15 holds the continuous belt-shaped member, draws the continuous belt-shaped member by a predetermined length, and supplies the continuous belt-shaped member to the mounting unit 11. The supply unit 15 includes a holding unit 16 and a drawing unit 17. The holding portion 16 holds the continuous belt-like member. The drawing unit 17 receives power from the driving unit 23 and moves from the standby position shown in fig. 2 to the grip position. The standby position is a position where the drawing unit 17 is located on the left side of the mounting unit 11. The grasping position is a position where the pulling-out portion 17 is located when one end portion of the continuous belt-like member held by the holding portion 16 is disposed above the grasping member 172 of the pulling-out portion 17. Specifically, the grasping position is a position where the drawing portion 17 is located when the stopper 29 abuts against the main body of the driving portion 23. The stopper 29 is fixed to the arm portion of the driving portion 23.

The drawing portion 17 has gripping members 171 and 172 at the right end portion. The gripper members 171, 172 extend in the longitudinal direction of the continuous belt-like member. The grasping member 171 is located above the grasping member 172. The pulling portion 17 receives power from the driving portion 24 (see fig. 8) and moves the grasping member 171 toward the grasping member 172. The drawing portion 17 grips one end (left end) of the continuous belt-like member by gripping members 171 and 172 from above and below. The pulling-out portion 17 receives power from the driving portion 23, pulls out a continuous belt-like member of a predetermined length from the holding portion 16, and supplies the continuous belt-like member to the mounting portion 11. Then, the drawing unit 17 receives power from the driving unit 25 and moves to the standby position. The driving portions 23 to 25 are air cylinders. The longitudinal direction of the continuous belt-like member is a direction in which the pulling-out portion 17 pulls out the continuous belt-like member. In the present embodiment, the longitudinal direction of the continuous belt-like member coincides with the longitudinal direction of the continuous belt-like member. The width direction of the continuous belt-shaped member is orthogonal to the longitudinal direction of the continuous belt-shaped member in a plan view. The longitudinal direction and the width direction of the continuous belt-like member coincide with the longitudinal direction and the width direction of the belt-like member 8 (belt loop sheet 7), respectively.

The cutting unit 18 cuts the continuous belt-shaped member supplied from the supply unit 15 to the mounting unit 11 to produce the belt-shaped member 8. The cutting portion 18 is located between the holding portion 16 and the placement portion 11 in the left-right direction. The cutting section 18 includes a knife 19 and an anvil 20. The knife 19 is located above the feed path of the continuous belt-like member. The anvil 20 is located below the knife 19, and a feeding path of the continuous band-shaped member is partitioned between the knife 19 and the anvil 20. The knife 19 has a blade portion at a portion (lower end) on the anvil 20 side. The blade portion extends substantially parallel to the width direction of the continuous band-shaped member (in the front-rear direction). As shown in fig. 4, the knife 19 is connected to the lower end of the driving portion 26. The driving unit 26 is an air cylinder and moves the knife 19 in the vertical direction. When the driving unit 26 moves the knife 19 downward from the position shown in fig. 4, the knife 19 moves from the standby position to the cutting position. The cutting position is a position where the blade portion of the knife 19 and the anvil 20 contact the continuous belt-like member. The standby position is a position where the knife 19 is located above the cutting position. The knife 19 is in the standby position in the state shown in fig. 4. The anvil 20 receives the knife 19 which is moved to the cutting position. The driving portion 27 is located below the anvil 20. The driving portion 27 is a cylinder. The anvil 20 can be moved in the up-down direction by receiving power from the driving portion 27. When the driving unit 26 moves the knife 19 downward from the position shown in fig. 4, the anvil 20 receives power from the driving unit 27 and moves upward. The knife 19 moves across the feed path of the continuous belt-like member, thereby cutting the continuous belt-like member on the feed path.

The mounting portion 11 is a plate member having a rectangular shape in a plan view. The mounting portion 11 has a mounting surface 113 (see fig. 11) on the upper surface thereof on which the longitudinal center portion of the belt-like member 8 can be mounted. In the tab sheet feeding device 2 of the present embodiment, the continuous belt-like member is pulled out by the pulling-out portion 17 and placed on the placement surface 113, and the continuous belt-like member is cut by the cutting portion 18 to produce a belt-like member of a predetermined length. The mounting surface 113 is a surface of the mounting portion 11 that faces the pressing portion 12. The mounting surface 113 is planar and extends in the horizontal direction. When the longitudinal center portion of the belt-like member 8 is placed on the placement surface 113, the longitudinal direction of the belt-like member 8 is parallel to the left-right direction. The length of the mounting portion 11 in the left-right direction is smaller than the length of the belt-like member 8 in the longitudinal direction. The mounting portion 11 has both ends 111, 112 at both ends in the left-right direction. The mounting surfaces 113 do not contact both ends of the belt-like member 8 in the longitudinal direction. The length of the mounting portion 11 in the left-right direction corresponds to the length of the belt loop sheet 7 in the longitudinal direction. The length of the placement portion 11 in the front-rear direction is greater than the length of the belt loop sheet 7 in the width direction. The mounting portion 11 can be replaced with a mounting portion having a different length in the left-right direction. The length of the tab 7 can be changed to a length corresponding to the placement portion after replacement by replacing the placement portion 11.

As shown in fig. 5, the pressing portion 12 has a substantially rectangular parallelepiped shape extending in the front-rear direction. The upper surface of the pressing portion 12 is inclined downward from the front end portion of the substantially central portion in the front-rear direction. The front end of the pressing part 12 is located at a standby position which is separated upward from the placing part 11. The rear end of the pressing portion 12 is connected to the shaft 122. The driving portion 21 is located above the pressing portion 12. The driving portion 21 is connected to the pressing portion 12 between the front end of the pressing portion 12 and the shaft 122. The driving section 21 drives the pressing section 12 to swing up and down about the shaft 122 as a fulcrum. The pressing portion 12 receives power from the driving portion 21 and moves from the standby position shown in fig. 5 to the pressing position shown in fig. 3. The pressing position is closer to the mounting portion 11 than the standby position. When the pressing portion 12 is at the pressing position, the continuous belt-like member (belt-like member 8, belt loop 7) placed on the placing portion 11 is pressed from above. The length in the left-right direction of the pressing portion 12 is smaller than the length in the length direction of the belt loop sheet 7. The pressing portion 12 is disposed at the center of the placement portion 11 in the lateral direction.

As shown in fig. 2 and 3, the pair of moving bars 13 and 14 are provided at positions separated upward from the mounting portion 11. The pair of moving rods 13 and 14 are provided at positions corresponding to both ends 111 and 112 (see fig. 14) of the placement unit 11, respectively. The pair of travel bars 13, 14 extend in the width direction (front-rear direction) of the belt-like member 8. The positions corresponding to both ends 111, 112 of the mounting portion 11 are slightly outside of both ends 111, 112 of the mounting portion 11 in the left-right direction. The rear ends of the pair of moving rods 13, 14 are fixed to the fitting members 221, 222. The mounting members 221, 222 extend in the vertical direction, and the upper ends of the mounting members 221, 222 are connected to the connecting portion 223. The coupling portion 223 is a member extending in the vertical direction, and is coupled to the driving portion 22. The pair of moving rods 13 and 14 can be moved in a direction (vertical direction) perpendicular to the placement unit 11 by receiving power from the driving unit 22 via the connection unit 223 and the mounting members 221 and 222. When the pressing part 12 presses the belt-like member 8, the pair of moving levers 13 and 14 receive power from the driving part 22 and move from the standby position (see fig. 3) to the lowering position (see fig. 12). The standby position is a position separated upward from the mounting unit 11. The lowered position is a position on the extended installation surface 90 of the placement unit 11. In this case, the pair of moving bars 13 and 14 and the placing portion 11 are on the same horizontal plane. The driving portions 21 and 22 are air cylinders. The distance between the pair of moving bars 13 and 14 can be changed according to the length of the placement portion attached to the first device 10 in the left-right direction.

The second means 40 cooperate with the first means 10 to make the tab 7. The second device 40 supplies the manufactured belt loop sheet 7 to the sewing machine 3. As shown in fig. 6 and 7, the second device 40 mainly includes a support portion 51, a shaft 52, a shaft 53, a support table 54, a guide portion 55, a coupling portion 56, driving portions 61 to 65, and a pair of gripping portions 41 and 46. In the following description, a side of the second device 40 in the longitudinal direction closer to the pair of clamping portions 41 and 46 is referred to as one end side of the second device 40, and a side of the second device 40 in the longitudinal direction closer to the shaft 52 is referred to as the other end side of the second device 40. One end side of the second device 40 is one end side of each component of the second device 40. The other end side of the second device 40 is the other end side of each component of the second device 40.

The pair of holding portions 41 and 46 bend both end portions 86 and 87 (see fig. 11) of the belt-like member 8 pressed by the pressing portion 12 along both ends 111 and 112 (see fig. 14) of the placing portion 11, respectively, to produce the belt loop sheet 7. The pair of holding portions 41 and 46 hold both end portions 68 and 69 in the longitudinal direction of the tab sheet 7 from above and below (see fig. 14).

As shown in fig. 6 and 10, a clamping portion 41 of the pair of clamping portions includes a first member 42, a second member 43, a spring 44, and a shaft 45, and a clamping portion 46 of the pair of clamping portions includes a first member 47, a second member 48, a spring 49, and a shaft 50. The first member 42, the first member 47, the second member 43, and the second member 48 are rod-shaped members, and extend parallel to the width direction of the belt-shaped member 8. The first member 42 is vertically swingable about the shaft 45, and the first member 47 is vertically swingable about the shaft 50. The spring 44 biases the first member 42 in a direction to separate from the second member 43, and the spring 49 biases the first member 47 in a direction to separate from the second member 48. The first member 42 receives power from the driving portion 61 and moves to the second member 43 side (downward), and the first member 47 receives power from the driving portion 62 and moves to the second member 48 side (downward). The driving portions 61 and 62 are air cylinders. The driving portions 61 and 62 are provided above the first member 42 and 47, respectively. The clamping portion 41 is arranged parallel to the clamping portion 46. The grip portion 41 and the grip portion 46 are disposed at positions spaced apart in the longitudinal direction of the tab 7. The driving unit 63 is an air chuck and is fixed to the support base 54. The driving portion 63 is provided with a pair of guide portions 67 on the upper surface. The pair of guide portions 67 are connected to be able to approach or separate from each other. The pair of guides 67 fix the rear end portion of the second member 43 and the rear end portion of the second member 48, respectively. When the driving portion 63 is driven, the pair of guide portions 67 approach or separate from each other. That is, the driving unit 63 can change the distance between the gripping unit 41 and the gripping unit 46 on the horizontal plane to the gripping position shown in fig. 15 and the spaced position shown in fig. 7. The driving section 63 equally moves the pair of gripping sections 41 and 46 in parallel to change the distance between the pair of gripping sections 41 and 46. The interval between the grip portion 41 and the grip portion 46 at the grip position is smaller than the length in the length direction of the belt loop sheet 7. The interval between the grip portion 41 and the grip portion 46 at the exit position is larger than the length in the length direction of the tab sheet 7.

The support portion 51 is a rectangular plate-shaped member. The support portion 51 supports the pair of clamping portions 41 and 46 via the support base 54 and the guide portion 55. The shaft 53 is in the shape of a round bar and extends in the vertical direction. One end (upper end) of the shaft 53 is connected to a substantially central portion of the support portion 51 in the longitudinal direction. The other end (lower end) of the shaft 53 is fixed to the table 5 by a screw 57. The shaft 53 supports the support portion 51 in a manner that the support portion 51 can swing. Coupling portion 56 is coupled to the lower surface of one end side of support portion 51. Support portion 51 is connected to drive portion 66 via connection portion 56. The support portion 51 can receive power from the driving portion 66 to swing between the supply position shown in fig. 1 and the clamping position shown in fig. 7 with the shaft 53 as a fulcrum. The supply position is a position where the support portion 51 is located when the longitudinal direction of the second device 40 is orthogonal to the longitudinal direction of the sewing machine 3. The longitudinal direction of the sewing machine 3 is the front-rear direction. When the support portion 51 is at the supply position, the pair of clamp portions 41 and 46 face the sewing machine 3. The clamping position is a position where the support portion 51 is located when the longitudinal direction of the second device 40 is orthogonal to the longitudinal direction of the first device 10. The longitudinal direction of the first device 10 is the left-right direction. When the support portion 51 is in the clamping position, the pair of clamping portions 41 and 46 face the first device 10. At this time, the pair of guide portions 67 are located at the left and right side positions, respectively. The driving portion 63 guides the pair of guide portions 67 so that the pair of guide portions 67 can move in the left-right direction, respectively.

The support base 54 supports the lower surfaces of the pair of gripping portions 41 and 46 on the other end side. The guide portion 55 has a linear rail shape extending from one end side to the other end side. The guide portion 55 supports the support base 54 so that the support base 54 can move. The support base 54 receives power from the driving unit 64 and moves along the guide unit 55 between a standby position shown in fig. 18 and 7 and an extended position shown in fig. 1 and 13. The driving portion 64 is a cylinder. The standby position is a position where the support base 54 is located when the arm portion of the driving portion 64 is retracted to the other end side. The extended position is a position at which the support table 54 is located when the arm portion of the drive portion 64 is projected to one end side. When the support base 54 moves, the pair of gripping portions 41 and 46 also move together with the support base 54. The shaft 52 is provided above the other end of the support portion 51. The support portion 51 can be swung about the shaft 52 as a fulcrum by receiving power from the drive portion 65. The driving unit 65 changes the vertical position of the pair of gripping portions 41 and 46 by swinging the support portion 51 about the shaft 52 as a fulcrum.

The sewing machine 3 is an industrial sewing machine having a known structure. As shown in fig. 1 and 6, the sewing machine 3 includes a bed portion 71, a column portion 72, a arm portion 73, and a tip portion 74. The chassis portion 71 extends in the front-rear direction. The bed portion 71 is provided with a needle plate 77, a presser foot drive mechanism 81 (see fig. 8), and a presser foot 82 at an upper portion. Needle plate 77 has needle receiving holes 78. The presser foot drive mechanism 81 is provided in front of the column portion 72. The presser drive mechanism 81 receives power from the drive unit 97 (see fig. 8) to move the presser 82 in the vertical, horizontal, and front-rear directions. The presser foot 82 presses the belt loop sheet 7 located above the needle plate 77 from the upper side. As shown in fig. 18, the presser foot 82 has a tip end side (left end side) that is divided into front and rear two tip end portions 821, 822. The distal ends 821 and 822 extend in the left-right direction. The presser 82 presses the inner side of the belt loop sheet 7 with the tip portions 821 and 822 than both ends in the longitudinal direction.

The housing portion 71 includes therein a shuttle mechanism, a conveying mechanism, a thread cutting mechanism 80 (see fig. 8), and the like. The shuttle mechanism rotates a rotary shuttle accommodating the bobbin thread. The conveying mechanism conveys the cloth 9 in the left-right direction and the front-rear direction. The feed mechanism moves the cloth 9 in the left-right direction and the front-back direction together with the presser foot drive mechanism 81. The pillar portion 72 extends upward from the rear end portion of the base portion 71. The column part 72 has a sewing machine motor 98 and the like inside. The arm portion 73 extends forward from the upper end portion of the column portion 72. The arm portion 73 is opposed to the upper surface of the base portion 71. The arm portion 73 has a main shaft 79 and the like therein. The rear end of the main shaft 79 is connected to a sewing machine motor 98. The sewing machine motor 98 rotates the main shaft 79. The tip portion 74 is provided at the tip of the arm portion 73, and a needle bar up-and-down movement mechanism, a thread take-up lever drive mechanism, and the like are provided inside.

The main shaft 79 transmits a rotational force generated in accordance with the driving of the sewing machine motor 98 to the needle bar up-down movement mechanism and the thread take-up lever driving mechanism, thereby driving the needle bar up-down movement mechanism and the thread take-up lever driving mechanism. The needle bar up-down movement mechanism moves the needle bar 75 up and down. The needle bar 75 extends downward. The lower end of the needle bar 75 is exposed from the lower side of the distal end 74. The needle bar 75 can be fitted with a needle 76 at the lower end. When the needle bar 75 is lowered to the lowermost position, the lower end of the needle 76 reaches the rotary hook through a needle receiving hole 78 provided in the needle plate 77. The rotary hook cooperates with the needle bar 75 to interlace the ground thread on the upper thread held by the needle 76. The thread take-up lever driving mechanism raises the face thread interwoven on the ground thread above the needle plate 77. The sewing machine 3 forms stitches on the cloth 9.

An electrical structure of the sewing system 1 is explained with reference to fig. 8. The control section 4 of the sewing system 1 synchronously controls the belt loop sheet supply device 2 and the sewing machine 3. The control section 4 includes a CPU101, a ROM102, a RAM103, a signal line 104, an input/output interface (I/F)105, and an external communication I/F106. The CPU101, ROM102, and RAM103 are electrically connected to an input/output I/F105 via a signal line 104. The external communication I/F106 is electrically connected to the input/output I/F105. The CPU101 controls the tab supply device 2 and the sewing machine 3, and executes various operations and processes related to the production and sewing of the tab 7 in accordance with various programs stored in the ROM 102. The ROM102 stores various programs, various initial setting parameters, and the like. The RAM103 temporarily stores setting values, operation results of the CPU101, and the like. The external communication I/F106 is responsible for communication with external devices. The CPU101 communicates with the tab supply device 2 and the sewing machine 3 via the external communication I/F106 and the input/output I/F105.

The tab sheet supply device 2 includes a CPU31, a ROM32, a RAM33, a signal line 34, an input/output I/F35, an external communication I/F36, drive sections 21 to 27, and drive sections 61 to 66. The CPU31, ROM32, and RAM33 are electrically connected to the input/output I/F35 via a signal line 34. The external communication I/F36, the driving units 21 to 27, and the driving units 61 to 66 are electrically connected to the input/output I/F35. The CPU31 controls the tab supply device 2 in accordance with instructions from the control unit 4, and executes various calculations and processes related to the production and supply of the tab 7. The ROM32 stores various programs, various initial setting parameters, and the like. The RAM33 temporarily stores setting values, operation results of the CPU31, and the like. The external communication I/F36 is responsible for communication with external devices. The CPU31 communicates with the control unit 4 via the external communication I/F36 and the input/output I/F35.

The driving portion 21 is a driving source of the pressing portion 12. The driving unit 21 swings the pressing unit 12 upward or downward in accordance with the instruction of the CPU 31. The driving unit 22 is a driving source for the pair of travel bars 13 and 14. The driving unit 22 moves the pair of moving levers 13 and 14 upward or downward in accordance with an instruction from the CPU 31. The driving unit 22 switches the positions of the pair of travel levers 13 and 14 between the standby position and the lowering position in accordance with an instruction from the CPU 31. The driving units 23 to 25 are driving sources of the drawing unit 17. The driving unit 23 pulls the continuous belt-like member onto the mounting surface 113 of the mounting unit 11 by the pulling unit 17 in accordance with an instruction from the CPU 31. The drive unit 24 grips the continuous belt-like member by the pulling unit 17 in accordance with an instruction from the CPU 31. The driving unit 25 moves the drawing unit 17 in the left direction according to the instruction of the CPU 31. The driving unit 26 is a driving source of the knife 19. The driving unit 26 moves the knife 19 upward or downward according to an instruction from the CPU 31. The driving section 27 is a driving source of the anvil 20. The driving unit 27 moves the anvil 20 upward or downward according to the instruction of the CPU 31.

The driving portion 61 is a driving source of the first member 42 of the clamping portion 41. The driving unit 61 moves the first member 42 downward in accordance with an instruction from the CPU 31. The driving portion 62 is a driving source of the first member 47 of the clamping portion 46. The driving unit 62 moves the first member 47 downward in accordance with an instruction from the CPU 31. The driving unit 63 is a driving source for changing the interval between the gripping unit 41 and the gripping unit 46. The driving section 63 enlarges or reduces the interval between the gripping section 41 and the gripping section 46 in accordance with the instruction of the CPU 31. The driving portion 64 is a driving source when moving the pair of gripping portions 41 and 46 in the width direction of the tab sheet 7. The driving unit 64 moves the pair of gripping portions 41 and 46 to one end side or the other end side of the second device 40 in accordance with an instruction from the CPU 31. The driving unit 65 is a driving source for adjusting the vertical position of the pair of gripping portions 41 and 46. The driving unit 65 swings the pair of gripping portions 41 and 46 upward or downward in accordance with an instruction from the CPU 31. The driving unit 66 is a driving source for swinging the second device 40 (the support unit 51) in a plan view. The driving unit 66 swings the second device 40 in accordance with an instruction from the CPU 31.

The sewing machine 3 includes a CPU91, a ROM92, a RAM93, a signal line 94, an input/output I/F95, an external communication I/F96, a drive section 97, a drive section 99, and a sewing machine motor 98. The CPU91, ROM92, and RAM93 are electrically connected to the input/output I/F95 via a signal line 94. The external communication I/F96, the drive unit 97, the drive unit 99, and the sewing machine motor 98 are electrically connected to the input/output I/F95. The CPU91 controls the sewing machine 3 in accordance with instructions from the control unit 4, and executes various calculations and processes related to the placement and sewing of the tab 7. The ROM92 stores various programs, various initial setting parameters, and the like. The RAM93 temporarily stores setting values, operation results of the CPU91, and the like. The external communication I/F96 is responsible for communication with external devices. The CPU91 communicates with the control unit 4 via the external communication I/F96 and the input/output I/F95. The driving section 97 is a driving source of the presser foot driving mechanism 81. The drive unit 97 moves the presser foot 82 up and down, right and left, and forward and backward by the presser foot drive mechanism 81 according to the instruction of the CPU 91. The sewing machine motor 98 is a driving source of the main shaft 79. The sewing machine motor 98 rotates the main shaft 79 as instructed by the CPU 91. The driving unit 99 is a driving source of the thread cutting mechanism 80. The drive unit 99 drives the thread cutting mechanism 80 according to an instruction from the CPU91 to cut the upper thread and the lower thread.

The sewing control process executed by the CPU101 of the control section 4, the CPU31 of the tab supply device 2, and the CPU91 of the sewing machine 3 in cooperation will be described with reference to fig. 9. The operator turns on the power supply of the sewing system 1 and operates the operation section to input a start instruction. At this time, the CPU101 reads a program of the sewing control process from the ROM102, and executes the process in accordance with an instruction included in the program. At the start of the process, tab feeding device 2 is in the state in fig. 7. The support portion 51 is in the clamped position. The pair of gripping portions 41, 46 are in the spaced-apart position. The support table 54 is in the standby position. The pressing portion 12, the pulling portion 17, and the knife 19 are each in a standby position, but not shown in the figure. The grasping members 171, 172 of the pulling-out portion 17 are spaced apart from each other.

The CPU101 outputs an instruction to the tab supply device 2 to execute a process of supplying the continuous band-shaped member to the placement portion 11. The CPU31 receives an instruction from the CPU101, and sequentially executes subsequent processes in accordance with the instruction. The CPU31 controls the driving unit 23 and the driving unit 24 to pull the continuous belt-like member by a predetermined length and supply the continuous belt-like member to the mounting unit 11 (S1). More specifically, the CPU31 drives the driving unit 23 to move the drawing unit 17 of the supply unit 15 from the standby position to the pickup position shown in fig. 2. The CPU31 drives the driving unit 24 to move the grasping member 171 toward the grasping member 172. The grasping members 171 and 172 grasp one end portion of the continuous belt-like member from above and below. The CPU31 drives the driving unit 23 to move the drawing unit 17 from the grasping position to the cutting position. The cutting position is between the standby position and the grasping position. The drawing portion 17 is located leftward of the placing portion 11 when located at the cutting position.

The CPU31 drives the driving unit 21 to lower the pressing unit 12 from the standby position shown in fig. 5 to the pressing position shown in fig. 3 (S2). The pressing portion 12 presses the continuous belt-like member from the upper side. The CPU31 controls the driving units 26 and 27 to move the knife 19 and the anvil 20 from the standby position shown in fig. 4 to the cutting position, thereby cutting the continuous belt-shaped member (S3). Then, the CPU31 controls the driving units 26 and 27 to move the knife 19 and the anvil 20 from the cutting position to the standby position. The CPU31 controls the driving section 24 to move the grasping member 171 away from the grasping member 172. The CPU31 controls the driving unit 25 to move the drawing unit 17 from the cutting position to the standby position.

As shown in fig. 11, the tab feeding device 2 places the belt-like member 8 of a predetermined length on the placement surface 113 of the placement portion 11 through the processes of S1 to S3. Both end portions 86, 87 of the belt-like member 8 in the longitudinal direction 89 do not contact the placement surface 113. The both ends 86, 87 are located outside both ends 111, 112 of the mounting portion 11. The center C of the belt-like member 8 in the longitudinal direction 89 coincides with the center C of the placement portion 11 in the left-right direction. The CPU31 controls the driving unit 22 to move the pair of shift levers 13 and 14 from the standby position shown in fig. 11 to the lowering position shown in fig. 12 (S4). The extension installation surface 90 is a horizontal surface passing through the center of the placement portion 11 in the vertical direction. The extension installation surface 90 may be a plane including the upper surface of the placement portion 11 (the surface on the pressing portion 12 side). The extension installation surface 90 may be a plane including the lower surface of the placement portion 11. The lowered position may be a position where the pair of moving bars 13 and 14 respectively extend across the installation surface 90 or respectively contact the installation surface 90. As shown in fig. 12, the pair of moving rods 13 and 14 press both end portions 86 and 87 of the belt-like member 8 at the lowered positions, respectively. The pair of shift levers 13 and 14 respectively bend both end portions 86 and 87 of the belt-like member 8 downward along the placement portion 11 and maintain the bent state.

The CPU31 controls the driving units 64 and 63 to move the pair of gripping units 41 and 46 to the positions corresponding to the placement unit 11 (S5). More specifically, the CPU31 controls the drive unit 64 to move the support base 54 from the standby position shown in fig. 7 to the extended position shown in fig. 13. At this time, as shown by the two-dot chain line in fig. 14, one ends (distal ends) of the pair of gripping portions 41, 46 are positioned outside the placement portion 11 in the longitudinal direction 89. One end (tip) of the first member 42, 47 is located above the placement portion 11. One end (distal end) of the second member 43, 48 is located below the placement portion 11 and above the lower end position of the both end portions 86, 87 of the belt-like member 8. As shown in fig. 15, the CPU31 controls the driving unit 63 to move the pair of gripping portions 41 and 46 to positions corresponding to the opposite ends 111 and 112 of the mounting unit 11, respectively. At this time, the distance from each of the pair of gripping portions 41 and 46 to both ends 111 and 112 of the placement portion 11 is smaller than the distance from each of the pair of gripping portions 41 and 46 to the center in the longitudinal direction 89 of the placement portion 11. Specifically, the pair of gripping portions 41 and 46 are each moved in parallel in the longitudinal direction 89 of the belt-like member 8 from positions outside the opposite ends 111 and 112 of the placement portion 11 to positions inside as indicated by solid lines in fig. 14. In fig. 14, the left end of the nip portion 41 shown by the solid line is on a plane D1 passing through the left end 111 of the loading portion 11. The right end of the holding portion 46 is on a plane D2 passing through the right end 112 of the placement portion 11. Both the planes D1 and D2 are perpendicular to the extended installation surface 90 (see fig. 12) of the placement unit 11. That is, the pair of clamping portions 41 and 46 are located in the planes D1 and D2 passing through the opposite ends 111 and 112 of the placement portion 11. The second members 43, 48 bend both end portions 86, 87 of the belt-like member 8 inward in the longitudinal direction 89 of the belt-like member 8. As shown in fig. 14, the pair of holding portions 41 and 46 bend both end portions 86 and 87 of the belt-like member 8 by substantially 180 degrees along the placement portion 11, respectively, to produce the tab sheet 7.

The CPU31 controls the driving portions 61, 62 to vertically sandwich both end portions 68, 69 in the longitudinal direction 89 of the tab sheet 7 with the pair of sandwiching portions 41, 46 (S6). Specifically, the first members 42 and 47 of the pair of gripping portions 41 and 46 receive power from the driving portions 61 and 62, respectively, and move toward the second members 43 and 48. As shown in fig. 16, the grip portion 41 in the pair of grip portions grips the tab sheet 7 from above and below with the first member 42 and the second member 43, and the grip portion 46 in the pair of grip portions grips the tab sheet 7 from above and below with the first member 47 and the second member 48. The CPU31 controls the driving unit 22 to move the pair of moving levers 13 and 14 from the lowered positions shown in fig. 16 to the standby positions shown in fig. 3 (S7).

The CPU31 drives the driving unit 21 to move the pressing unit 12 from the pressing position shown in fig. 16 to the standby position shown in fig. 5 (S8). The CPU31 drives the driving section 64 to move the pair of gripping sections 41, 46 in the width direction of the tab 7 (S9). Specifically, the CPU31 drives the driving unit 64 to move the support base 54 from the extended position shown in fig. 15 to the standby position shown in fig. 17. As shown in fig. 17, the pair of holding portions 41 and 46 moves forward while holding both end portions 68 and 69 of the tab 7. The belt loop sheet 7 moves in parallel with the pair of gripping portions 41 and 46 and is separated from the placement portion 11. When the pair of gripping portions 41, 46 and the tab 7 leave the placing portion 11, the first members 42, 47 move to the second members 43, 48 sides, respectively. The space between the first member 42 and the second member 43 is reduced, and the space between the first member 47 and the second member 48 is reduced.

When the pair of gripping portions 41 and 46 moves and the loop sheet 7 is separated from the placing portion 11, the CPU31 drives the driving portion 66 to swing the supporting portion 51 to a position where the pair of gripping portions 41 and 46 faces the sewing machine 3 (S10). More specifically, CPU31 drives driving unit 66 to swing support unit 51 from the nipping position shown in fig. 17 to the feeding position shown in fig. 18. The CPU31 drives the driving section 64 to move the pair of gripping sections 41 and 46 in the width direction (left direction) of the tab 7 (S11). The pair of nip portions 41 and 46 is positioned above the cloth 9 (needle plate 77) after moving in the width direction of the tab sheet 7. The cloth 9 is located on the upper surface of the needle plate 77. More specifically, the CPU31 drives the driving unit 64 to move the support base 54 from the standby position shown in fig. 18 to the extended position shown in fig. 1. The CPU31 drives the driving unit 65 to move the pair of gripping portions 41 and 46 downward (S12). The lower surfaces of the pair of nip portions 41 and 46 on the tip end side contact the upper surface of the fabric 9. The CPU31 outputs an instruction to the control section 4 to indicate that the processing at S12 is ended.

The CPU101 of the control section 4 receives an instruction from the tab sheet supply device 2 and outputs an instruction to lower the presser foot 82 to the sewing machine 3. The CPU91 of the sewing machine 3 receives the instruction output from the control unit 4, and drives the driving unit 97 to move the presser foot 82 downward (S13). As shown in fig. 19, the presser foot 82 moves from the standby position shown by the one-dot chain line to the sewing position shown by the solid line. The standby position is a position where the presser foot 82 is located when being away from above the tab sheet 7 located above the cloth 9. The sewing position is a position where the presser foot 82 is located when pressing the belt loop sheet 7 from above. The tip portions 821, 822 of the presser foot 82 are both located between the pair of clamp portions 41, 46. Tip portion 821 presses against a range including range 38. Range 38 includes a portion of one of the folded portions 118 of tab 7. The apex 822 presses against a range including range 39. Range 39 includes a portion of the other folded portion 119 of tab 7. The presser foot 82 presses a range including a part of each of the pair of bending portions 118, 119 of the belt loop sheet 7 from the upper side. The CPU91 outputs an instruction to the control section 4 to indicate that the processing at S13 is ended. The CPU101 of the control section 4 receives the instruction output from the sewing machine 3, and outputs an instruction to the tab supply device 2 to execute a process of releasing the tab 7 from the pair of gripping sections 41 and 46.

The CPU31 of the tab feeding device 2 receives the instruction output by the control section 4. The CPU31 stops the driving of the driving portions 61, 62, and releases the grip of the pair of grip portions 41, 46 on the tab 7 (S14). As shown in fig. 20, when the driving of the driving portions 61, 62 is stopped, the first members 42, 47 are separated from the second members 43, 48 by the springs 44, 49, respectively.

The CPU31 drives the driving section 63 to move the pair of gripping sections 41 and 46 outward in the longitudinal direction 88 of the tab 7 (S15). Specifically, the CPU31 drives the driving portion 63 to move the pair of gripping portions 41 and 46 in the direction away from each other in the longitudinal direction 88 of the tab 7. As shown in fig. 21, presser foot 82 presses against tab 7 while maintaining the positions of bending portions 118, 119 of tab 7.

The CPU31 drives the driving unit 64 to move the support base 54 from the extended position to the standby position, and thereby moves the pair of gripping portions 41 and 46 in the width direction (right direction) of the tape tab 7 (S16). The CPU31 outputs an instruction to the control section 4 to indicate that the processing at S16 is ended. The CPU101 of the control section 4 receives the instruction output from the tab sheet feeding device 2. The CPU101 outputs an instruction to the sewing machine 3 to execute a process of sewing the loop sheet 7 to the cloth 9.

The CPU91 of the sewing machine 3 receives the instruction output from the control unit 4. CPU91 drives driving unit 97 and sewing machine motor 98 to sew both ends 68, 69 of tab sheet 7 to fabric 9 (S17). When the process of sewing the belt loop sheet 7 is finished, the CPU91 drives the driving section 99 to cut the upper thread and the lower thread (S17). As shown in fig. 22, sewing machine 3 forms stitches 151, 152 shown in dashed lines at both end portions 68, 69 of tab 7. The stitches 151, 152 are outside the tip portions 821, 822 of the presser foot 82 in the longitudinal direction 88 of the tab sheet 7, respectively. The CPU91 of the sewing machine 3 outputs an instruction to the control unit 4 to end the processing of S17. CPU31 of tab feeding device 2 drives driving portion 66 to swing supporting portion 51 from the feeding position to the nipping position (S18). The CPU31 outputs an instruction to the control section 4 to indicate that the processing at S18 is ended. The CPU101 of the control section 4 ends the sewing control process upon receiving instructions output from the sewing machine 3 and the tab feeding device 2, respectively.

The sewing system 1 corresponds to the sewing system of the present invention. The tab sheet feeding device 2 corresponds to the feeding device of the present invention. The sewing machine 3 corresponds to a sewing device of the present invention. The mounting portion 11 corresponds to the mounting portion of the present invention. The mounting surface 113 corresponds to the mounting surface of the present invention. The support portion 51 corresponds to the support portion of the present invention. The shaft 53 corresponds to a support shaft of the present invention. The supply unit 15 corresponds to the supply unit of the present invention. The first members 42, 47 correspond to the first member of the present invention. The second members 43, 48 correspond to the second member of the present invention. The pair of clamping portions 41 and 46 corresponds to a pair of clamping portions of the present invention. The pair of moving bars 13, 14 correspond to the pair of moving bars of the present invention. The cutting section 18, the driving section 26, and the driving section 27 correspond to the cutting section of the present invention. The pressing portion 12 and the driving portion 21 correspond to the pressing portion of the present invention. The driving portion 22 corresponds to a travel bar driving portion of the present invention. The driving portion 66 corresponds to a swing portion of the present invention. The driving portion 63 corresponds to a first clamp driving portion of the present invention. The driving portions 61 and 62 correspond to a second clamp driving portion of the present invention. The driving portion 64 corresponds to a third clamp driving portion of the present invention. The CPU31 that executes the process of S4 in fig. 9 functions as the first movement control unit of the present invention. The CPU31 that executes the process of S7 functions as the second movement control unit of the present invention. The CPU31 executing the process of S5 functions as the first pinching control section of the present invention. The CPU31 executing the process of S6 functions as the second grip control unit of the present invention. The CPU31 that executes the process of S10 functions as the wobble control unit of the present invention. The CPU31 executing the process of S11 functions as the fourth grip control unit of the present invention. The CPU31 that executes the process of S3 functions as the disconnection control unit of the present invention. The CPU31 executing the process of S8 functions as the pressing control unit of the present invention. The CPU31 that executes the process of S9 functions as the third pinching control section of the present invention. The presser foot 82 corresponds to the presser foot portion of the present invention. The CPU91 that executes the processing of S13 corresponds to the presser foot control section of the present invention. The CPU31 that executes the process of S15 functions as the fifth grip control unit of the present invention. The springs 44 and 49 and the CPU31 that executes the processing of S14 correspond to the release control section of the present invention.

In the tab supply device 2, when the pressing part 12 presses the belt-like member 8, the pair of clamping parts 41 and 46 bends the belt-like member 8 along both ends 111 and 112 of the placing part 11 to produce the tab 7. At this time, the tab sheet feeding device 2 can suppress the belt-like member 8 from flexing compared to when the belt-like member 8 is not pressed by the pressing portion 12. The pair of clamping portions 41 and 46 can more reliably bend the belt-like member 8 along the two ends 111 and 112 of the placement portion 11. The pair of holding portions 41, 46 move to positions corresponding to both end portions 86, 87 of the belt-like member 8, respectively, and hold both end portions 68, 69 of the tab sheet 7. The tab feeding device 2 can shorten the length of the bending portions 118, 119 compared to when the grip portion is rotated to bend the both end portions 86, 87 of the belt-like member 8. The tab supply device 2 can supply the tab 7 having a shorter length of the bent portions 118, 119 than before to the sewing machine 3.

When tab sheet feeding device 2 finishes making tab sheet 7, both ends 68, 69 in longitudinal direction 89 of tab sheet 7 approach both ends 111, 112 of placement portion 11. Tab supply device 2 can shorten the length of bent portions 118, 119 when sandwiching the position of tab sheet 7 near both ends compared to when sandwiching the position of tab sheet 7 far from both ends. As shown in fig. 16, the pair of clamping portions 41, 46 of the tab supply device 2 clamp both end portions 68, 69 of the tab 7 at positions corresponding to both ends 111, 112 of the placement portion 11, respectively. Therefore, the tab feeding device 2 can shorten the length of the bending portions 118, 119 of the tab 7.

As shown in fig. 12, the tab feeding device 2 moves the pair of moving levers 13 and 14 to bend the belt-like member 8 along the placing portion 11 and maintain the bent state (S4). As shown in fig. 14, the pair of holding portions 41 and 46 bend both end portions 86 and 87 of the belt-like member 8 further inward in the longitudinal direction 89 of the belt-like member 8 to be substantially parallel to the placement portion 11, respectively, to produce the belt loop sheet 7 (S5). The tab sheet feeding device 2 bends the belt-like member 8 by approximately 180 degrees in two stages by a pair of moving bars 13, 14 and a pair of clamping portions 41, 46. The tab feeding device 2 can reliably bend the belt-like member 8 along the placement portion 11, compared to when bending the belt-like member 8 only with the pair of clamping portions 41, 46. Both ends 111, 112 of the mounting portion 11 are rounded. Therefore, the tab feeding device 2 can easily bend both ends 68, 69 of the belt-like member 8 along both ends 111, 112 of the placement portion 11, compared to when both ends of the placement portion 11 are not rounded.

The tab supply device 2 performs the operation of holding the tab 7 (S1 to S9) and the operation of supplying the tab 7 to the sewing machine 3 (S11, S12, S14 to S16). In the tab sheet feeding device 2, the structure of holding the tab sheet 7 and the structure of feeding the tab sheet 7 to the sewing machine 3 need not conflict with each other. The support portion 51 of the tab sheet feeding device 2 can swing around the shaft 53. The tab feeding device 2 can simplify the structure and operation of the placement portion 11, the pressing portion 12, and the pair of nipping portions 41 and 46, compared to when the support portion 51 cannot be swung. When the support portion 51 is in the clamping position, the sewing machine 3 is relatively distant from the second device 40, as compared to when the support portion 51 is in the supply position. When the support portion 51 is at the clamping position, the operator can easily perform the work of replacing the cloth 9 on the sewing machine 3 and the work of disposing the cloth 9 at a desired position. Therefore, the tab sheet supply device 2 can improve the operability of the work of the operator for arranging the cloth 9 on the sewing machine 3.

While the pressing part 12 presses the continuous belt-like member, the tab sheet feeding device 2 cuts the continuous belt-like member (S2, S3). The tab sheet feeding device 2 can suppress the skew of the cut surface with respect to the width direction of the continuous belt-like member (belt-like member 8). The tab sheet feeding device 2 can improve the finished product quality of the tab sheet 7. After the pressing portion 12 is separated from the placement portion 11, the pair of gripping portions 41 and 46 move in the width direction (forward) of the tape tab 7 (S8 and S9). Compared to when the pair of nipping portions 41, 46 is moved in the width direction of the tab 7 with the pressing portion 12 pressing the tab 7, the tab supply device 2 can smoothly separate the tab 7 from the placement portion 11. Tab supply device 2 can suppress the bending portions 118, 119 of tab sheet 7 from skewing with respect to the width direction of tab sheet 7. The tab sheet feeding device 2 can improve the finished product quality of the tab sheet 7.

When the presser foot 82 presses the belt loop sheet 7 (S13), the sewing system 1 moves the pair of holding portions 41 and 46 outward in the longitudinal direction 88 of the belt loop sheet 7 (S15). Compared with a sewing system in which the clamping portion is moved in the width direction of the belt tab, the sewing system 1 can suppress both end portions in the length direction 88 of the belt tab 7 from being skewed with respect to the width direction of the belt tab 7. The sewing system 1 can improve the quality of finished products of sewing of the belt loop sheet 7.

Tip portions 821 and 822 of the presser foot 82 press ranges 38 and 39 including a part of the pair of bent portions 118 and 119 of the strap sheet 7 from above, respectively. The sewing system 1 can suppress the bent portions 118, 119 of the tab 7 from moving together with the pair of gripping portions 41, 46 when the pair of gripping portions 41, 46 move outward in the longitudinal direction 88 of the tab 7 (S15). The sewing system 1 can suppress the change in the length of the belt loop sheet 7 in the longitudinal direction from the length of the belt loop sheet 7 before the pair of clamping portions 41, 46 move. The sewing system 1 can improve the quality of finished products of sewing of the belt loop sheet 7.

After releasing the grip of the pair of grip portions 41 and 46 on the tab 7 by the drive of the drive portions 61 and 62 (S14), the sewing system 1 moves the pair of grip portions 41 and 46 outward in the longitudinal direction 88 of the tab 7 (S15). The sewing system 1 can more reliably suppress the bent portions 118, 119 of the tab sheet 7 from moving together with the pair of holding portions 41, 46, compared to when the pair of holding portions 41, 46 move outward in the longitudinal direction 88 of the tab sheet 7 in a state where the tab sheet 7 is held from above and below, respectively. The sewing system 1 can improve the quality of finished products of sewing of the belt loop sheet 7.

The present invention is not limited to the above embodiment, and various modifications can be made. The control section 4 may be provided in the sewing machine 3 or the tab sheet supply device 2. The CPU31 of the tab sheet supply device 2 can directly control the drive parts 97, 99 of the sewing machine 3 and the sewing machine motor 98. The configurations of the tab sheet supply device 2 and the sewing machine 3 may be appropriately changed. The pair of moving rods 13 and 14 may be rod-shaped. The shape, arrangement, and moving direction of each of the pair of moving levers 13 and 14 may be changed as appropriate. The tab sheet feeding device 2 may not have a pair of moving bars 13, 14. For example, the pair of holding portions 41 and 46 may be configured to bend the both end portions 86 and 87 of the belt-like member 8 as shown in fig. 12 by moving the second members 43 and 48 downward from above the both end portions 86 and 87 of the belt-like member 8.

The position where the pair of holding portions 41, 46 hold the belt loop sheet 7 is preferably a position corresponding to both ends 111, 112 of the placement portion 11. The positions corresponding to both ends 111, 112 of the placement portion 11 may be positions inside the planes D1, D2 in the longitudinal direction 89 of the belt loop sheet 7. The position where the loop sheet 7 is sandwiched by the pair of sandwiching portions 41, 46 may be a position where the center portion in the left-right direction of the sandwiching portion 41 is within a plane D1 passing through the left end 111 of the mounting portion 11, and the center portion in the left-right direction of the sandwiching portion 46 is within a plane D2 passing through the right end 112 of the mounting portion 11.

The amount of swing of the support portion 51 by the driving of the driving portion 66 can be changed according to the arrangement of the sewing machine 3 and the tab supply device 2, the mounting direction of the tab 7 with respect to the longitudinal direction of the sewing machine 3, and the like. As in the conventional sewing system, when the needle plate 77, the placing section 11, and the pair of nip sections 41 and 46 are arranged on the same straight line, the tab feeding device 2 may not have the support section 51, the shaft 53, and the driving section 66 as appropriate. At this time, the tab sheet feeding device 2 may omit the process of S10.

The process of S6 may be omitted in the case when the pressing part 12 can move in the width direction of the tab 7, or the like. The tab sheet feeding device 2 may not include the feeding portion 15, the cutting portion 18, and the driving portions 23 to 27, when directly feeding the tape-shaped member 8 to the mounting portion 11. In this case, the processing from S1 to S3 may be omitted or changed. The drive portions 21 to 27 and the drive portions 61 to 66 of the tab sheet feeding device 2 may be changed to other actuators such as motors as appropriate.

The shape, size, arrangement, and the like of the presser foot 82 may be appropriately changed. The top end of the presser foot 82 may not be bifurcated. The tip portions 821, 822 of the presser foot 82 may extend from the left to the right. The range in which the presser 82 presses the belt loop sheet 7 in the longitudinal direction may be appropriately changed. The sewing system 1 may omit the process of S14.

The storage device of the sewing system 1 may store a program including instructions for the sewing system 1 to execute the sewing control process of fig. 9 before the sewing system 1 executes the program. The program acquisition method, the acquisition path, and the device storing the program may be changed as appropriate. The sewing system 1 may receive the program executed by the processor from another device through data line or wireless communication, and store the program in a storage device such as a flash memory. Other devices include, for example, a PC, a server connected to the sewing system 1 through a network.

The steps of the sewing control process of fig. 9 are not limited to the example in which the CPUs 31 and 91 execute in accordance with the instruction of the CPU 101. A part or all of the sewing control process may be executed by an electronic device (for example, ASIC) other than the CPU. The sewing control process may be performed in a plurality of steps by a plurality of electronic devices (e.g., a plurality of CPUs). The steps of the sewing control processing of the above embodiment may be changed in order, omitted, or added as necessary. The scope of the present invention also includes a configuration in which a part or all of the actual processing is executed by an Operating System (OS) or the like operating on the sewing system 1 based on an instruction from a processor of the sewing system 1, and the functions of the above-described embodiments are realized by this processing.

Claims

1. A feeding device for feeding a belt loop piece (7) formed by bending both end portions of a belt-like member (8) in a longitudinal direction to a sewing device (3),

the supply device (2) comprises:

a placement section (11) having a placement surface (113) on which the longitudinal center section of the belt-like member can be placed;

pressing parts (12, 21) capable of pressing the belt-shaped member placed on the placing part from the upper side; and

a pair of clamping portions (41, 46) each having a first member (42, 47) and a second member (43, 48) which are rod-shaped members extending in a width direction orthogonal to a longitudinal direction of the belt-shaped member;

a length of the placement portion in a direction parallel to a longitudinal direction of the belt-shaped member is smaller than a length of the belt-shaped member;

the pair of holding portions bend both end portions (86, 87) in the longitudinal direction of the belt-like member pressed by the pressing portion along both ends (111, 112) in the direction parallel to the longitudinal direction of the belt-like member of the placement portion, respectively, to produce the belt loop piece, and the pair of holding portions hold both end portions (68, 69) in the longitudinal direction of the belt loop piece from above and below with the first member and the second member, respectively.

2. The supply device according to claim 1,

the pair of holding portions hold the both end portions of the belt loop sheet at positions in planes (D1, D2) passing through the both ends of the mounting portion and orthogonal to the mounting portion, respectively.

3. The supply device according to claim 1,

the supply device further includes:

a pair of rod-shaped moving rods (13, 14) which are provided at positions separated upward from the placement portion and outside the two ends of the placement portion in the longitudinal direction of the belt-shaped member, and which extend in the width direction of the belt-shaped member;

a moving lever driving unit (22) for switching the positions of the pair of moving levers between a position spaced upward from the placement unit and a position on an extension plane of the placement unit;

a first clamping drive unit (63) that moves each of the pair of clamping units in the longitudinal direction of the belt-shaped member between a position outside the two ends of the placement unit and a position inside the two ends of the placement unit;

second clamping driving parts (61, 62) which can make the first member at the upper side of the first member and the second member at the upper side of the pair of clamping parts move to the second member at the lower side;

a first movement control unit (31) that moves the pair of moving rods to lower positions by the moving rod driving unit when the pressing unit presses the belt-like member, and presses the two end portions of the belt-like member, thereby bending the two end portions of the belt-like member along the placing unit and maintaining the bent state;

a first clamping control unit (31) that moves the pair of shift levers to the inner positions by the first clamping drive unit in a state where the first member is located above the placement unit and the second member is located below the placement unit after the first shift control unit moves the pair of shift levers by the shift lever drive unit, and further bends the both end portions of the band-shaped member, which are bent by the pair of shift levers and remain bent, toward the inner side so as to be substantially parallel to the placement unit, thereby manufacturing the strap piece; and

and a second clamping control unit (31) that moves the first member of each of the pair of clamping units toward the second member by the second clamping drive unit after the first clamping control unit moves the pair of clamping units by the first clamping drive unit, and that clamps the both end portions of the belt loop sheet from the up-down direction.

4. The supply device according to claim 2,

the supply device further includes:

5. The supply device according to claim 1,

the supply device further includes:

a support part (51) for supporting the pair of clamping parts;

a third clamping drive portion (64) which can move the pair of clamping portions in the width direction of the belt loop sheet;

a support shaft (53) that supports the support portion in a manner such that the support portion can swing;

a swing portion (66) which can swing the support portion around the support shaft;

a swing control unit (31) for swinging the support unit by the swing unit from a holding position where the pair of holding portions respectively oppose the placing portion to a supply position where the pair of holding portions respectively oppose the sewing device, when the third holding drive unit moves the pair of holding portions in the width direction of the tab sheet and separates the tab sheet from the placing portion; and

and a fourth clamping control portion (31) which moves the pair of clamping portions in the width direction of the tab sheet by the third clamping drive portion to supply the tab sheet to the sewing device when the swing control portion swings the support portion to the supply position by the swing portion.

6. The supply device according to claim 2,

the supply device further includes:

a support part (51) for supporting the pair of clamping parts;

7. The supply device according to claim 3,

the supply device further includes:

a support part (51) for supporting the pair of clamping parts;

8. The supply device according to claim 4,

the supply device further includes:

a support part (51) for supporting the pair of clamping parts;

9. The supply device according to any one of claims 1 to 8,

the supply device further includes:

a supply unit (15) for supplying the continuous belt-like member to the placement unit;

cutting units (18, 26, 27) for cutting the continuous strip-shaped member supplied by the supply unit to produce the strip-shaped member; and

and a cutting control unit (31) for cutting the continuous belt-shaped member by the cutting unit when the pressing unit presses the continuous belt-shaped member.

10. The supply device according to claim 3 or 4,

the supply device further includes:

a second movement control unit (31) for moving the pair of shift levers from a position on an extension plane of the mounting unit to a position away from the mounting unit in an upward direction by the shift lever drive unit after the second clamping control unit vertically clamps the two end portions of the strap piece by the second clamping drive unit;

a pressing control unit (31) for moving the pair of moving bars upward by the second movement control unit using the moving bar driving unit and then separating the pressing unit from the placing unit;

and a third clamping control portion (31) which moves the pair of clamping portions in the width direction of the tab by the third clamping drive portion after the pressing control portion moves the pressing portion away from the mounting portion, thereby moving the tab away from the mounting portion.

11. The supply device according to claim 3 or 4,

the supply device further includes:

a fourth clamping control part (31) which can make the pair of clamping parts move to the needle plate (77) of the sewing device by the third clamping driving part;

and a fifth nip control part (31) which moves the pair of nip parts to the outside in the longitudinal direction of the belt loop sheet by the first nip drive part when the fourth nip control part moves the pair of nip parts to the needle plate by the third nip drive part and a presser foot part (82) of the sewing device presses the belt loop sheet located above the needle plate.

12. The supply device according to claim 7 or 8,

the fourth grip control portion can move the pair of grip portions above a needle plate (77) of the sewing device by the third grip driving portion to supply the tab sheet to the sewing device;

the feeding device further includes a fifth nip control portion (31) which moves the pair of nip portions to the outside in the longitudinal direction of the belt loop sheet by the first nip drive portion when the fourth nip control portion moves the pair of nip portions to the needle plate by the third nip drive portion and a presser foot portion (82) of the sewing device presses the belt loop sheet located above the needle plate.

13. A sewing system including a supply device (2) that supplies a belt loop piece (7) formed by bending both end portions of a belt-like member (8) in a longitudinal direction to a sewing device (3) that sews the belt loop piece to a sewing object (9), the sewing system (1) characterized by comprising:

14. The sewing system of claim 13,

the sewing system further includes:

15. The sewing system of claim 14,

the sewing system further includes:

a presser foot part (82) capable of pressing the belt loop sheet located above a needle plate (77) of the sewing device from above;

a presser foot control part (91) for pressing the belt loop piece held by the pair of holding parts from above by the presser foot when the pair of holding parts is moved above the needle plate by the fourth holding control part by the third holding drive part;

and a fifth clamping control section (31) for moving the pair of clamping sections outward in the longitudinal direction of the belt loop sheet by the first clamping drive section when the presser foot section control section presses the presser foot section against the belt loop sheet.

16. The sewing system of claim 15,

the presser foot presses a range including a part of the pair of bent portions of the belt loop sheet from above.

17. The sewing system of claim 15 or 16,

the sewing system further comprises a release control part (31) which releases the clamping of the pair of clamping parts on the belt loop sheet respectively under the action of the second clamping driving part when the foot pressing part control part presses the foot pressing part on the belt loop sheet;

when the release control portion releases the grip of each of the pair of gripping portions on the belt loop sheet, the fifth grip control portion moves each of the pair of gripping portions to the outside of the belt loop sheet by the first grip driving portion.