CN112981742A - Curved surface sewing clamp and curved surface sewing method - Google Patents
Curved surface sewing clamp and curved surface sewing method Download PDFInfo
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- CN112981742A CN112981742A CN202110155631.0A CN202110155631A CN112981742A CN 112981742 A CN112981742 A CN 112981742A CN 202110155631 A CN202110155631 A CN 202110155631A CN 112981742 A CN112981742 A CN 112981742A
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
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- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a curved surface sewing clamp and a curved surface sewing method. Curved surface sewing jig, demountable installation is on sewing equipment, and anchor clamps include following part: the first clamping plate comprises a first curved part, and a first sewing groove is formed in the first curved part; the second clamping plate comprises a second curved part, and a second sewing groove is formed in the second curved part; the second sewing groove is matched with the first sewing groove in a separable mode, and the second curved part is offset from the first curved part in a separable mode. The curved surface sewing method comprises the curved surface sewing clamp and also comprises the following steps of S1 and installing the clamp; s2, feeding; and S3, sewing. By the aid of the clamp and the sewing method using the clamp, radian curved surface positioning sewing is realized by the inner and outer circular arc tangent principle, the utilization rate of a computer sewing process can be increased, and the general problem of the inclined industry in heel and drawstring sewing operation is effectively solved.
Description
Technical Field
The invention relates to the technical field of sewing tools, in particular to a curved surface sewing clamp and a curved surface sewing method.
Background
The sewing process of the Y-axis cambered surface is a technical bottleneck which can not be broken through by numerical control lathes in the sewing industry. In the traditional Y-axis radian curved surface sewing process, various problems such as deflection, heavy needle and the like are easy to occur,
it is therefore desirable to develop a tool that ameliorates the above problems.
Disclosure of Invention
According to one aspect of the present invention, there is provided a curved sewing jig detachably mountable to a sewing apparatus, the jig comprising:
the first clamping plate is fixedly arranged and comprises a first curved part, and a first sewing groove is formed in the first curved part;
the second clamping plate is arranged above the first clamping plate in a lifting and movable manner and comprises a second curved part, and a second sewing groove is formed in the second curved part;
the second sewing groove is matched with the first sewing groove in a separable mode, and the second curved part is offset from the first curved part in a separable mode.
The invention provides a clamp for sewing a curved material. In the clamp, a first clamping plate is fixedly arranged, a second clamping plate can lift and move above the first clamping plate, and the second clamping plate is attached to or separated from the first clamping plate; when the sewing machine works, a workpiece is placed on the first clamping plate, the second clamping plate and the first clamping plate clamp the workpiece tightly, then the sewing piece is placed on the second sewing groove, and the workpiece and the sewing piece are sewn by the sewing equipment. This anchor clamps utilizes curved portion to sew the material that contains the radian curved surface, through the tangent principle of interior excircle circular arc, realizes radian curved surface location and makes up, has effectively solved the crooked general puzzlement of appearance in the sewing operation of radian curved surface material.
In some embodiments, the sewing device includes a sewing mechanism, a sliding platform, and a pressing mechanism, wherein the sliding platform is disposed on the sliding platform, the sliding platform is located below the sewing mechanism, the pressing mechanism is disposed on the sliding platform, the first clamping plate is fixed at a driving end of the sliding platform, and the second clamping plate is disposed at the driving end of the pressing mechanism.
Thus, the sewing device is constituted by the above structure, and the sewing mechanism is configured to sew the workpiece; the sliding platform is configured to drive the first clamping plate, the pressing mechanism and the second clamping plate on the pressing mechanism to move on a horizontal plane; the pressing mechanism is configured to drive the second clamping plate to move up and down.
In some embodiments, a support bar is disposed in the first sewing groove, a head end of the support bar extends from one end of the first sewing groove to the other end of the first sewing groove, and a tail end of the support bar is separated from the other end of the first sewing groove.
Therefore, the support strip can provide support force for the workpiece, and the tail end of the support strip and the gap of the first sewing groove can be passed by the sewing end of the sewing equipment, so that a continuous U-shaped sewing thread is formed.
In some embodiments, the curved surface sewing jig further comprises a cushion pad, the lower end surface of the second clamping plate is provided with a mounting groove, the mounting groove is located at the edge position of the second sewing groove, and the cushion pad is embedded in the mounting groove.
Therefore, the cushion pad can improve the clamping force of the clamp on the workpiece, and can avoid scraping the workpiece.
In some embodiments, the cushion pad is provided with a through groove identical to the second sewing groove, and the through groove, the first sewing groove and the second sewing groove are identical in shape.
Therefore, the sewing end of the sewing equipment sews the workpiece through the through groove and the second sewing groove, and the first sewing groove is a low clearance part of the workpiece.
In some embodiments, the first curved portion and the second curved portion are identical in structure, and the first curved portion and the second curved portion are arranged in a shape similar to the outer end face of the heel.
Therefore, the workpiece is positioned, clamped and sewn through the first curved part and the second curved part which are arranged in a shape similar to the outer end surface of the heel.
In some embodiments, the first clamping plate further comprises a first mounting portion disposed at one end of the first curved portion; the second splint still includes the second installation department, and the one end of second curved portion is located to the second installation department.
Thereby, the first mounting portion is used for mounting and the second mounting portion is used for mounting.
In some embodiments, the edge of the first mounting portion is provided with a notch, and the notch is used for mounting and positioning.
Thereby, the passing notch of the first clamping plate is positioned and installed on the sewing device.
In another aspect of the present invention, there is provided a curved surface sewing method, comprising the above curved surface sewing jig, further comprising the steps of,
s1, mounting a clamp: installing a first installation plate at the driving end of the sliding platform, and installing a second installation plate at the driving end of the pressing mechanism;
s2, feeding: placing the heel on the upper end face of the first clamping plate, starting the first pressing mechanism, driving the second clamping plate to descend by the first pressing mechanism, clamping the heel by the second clamping plate in a manner that the second clamping plate is matched with the first clamping plate, and installing a pull belt at the upper end of the heel;
s3, sewing: and starting the sewing mechanism, driving the first clamping plate and the second clamping plate to move by the sliding platform, and sewing the pull belt to the heel by matching with the sewing mechanism.
The invention also provides a method for sewing a curved surface by using the clamp. According to the method, the heel is clamped by using the structure of the clamp, the pull belt is placed on the upper end face of the heel, and the radian curved surface positioning sewing is realized by the inner and outer circular arc tangent principle.
In some embodiments, in step S2, a draw tape is installed along the opening of the second sewing groove, and the draw tape is engaged with the upper end surface of the heel and positioned in the second sewing groove.
Therefore, the drawstring can be positioned through the second sewing groove, and dislocation is prevented.
The invention has the following beneficial effects: by the aid of the clamp and the sewing method using the clamp, the utilization rate of a computer sewing process can be improved, and the common problem of the deflection in the heel and drawstring sewing operation in the industry is effectively solved.
Drawings
Fig. 1 is a schematic perspective view of a curved surface sewing jig according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view of the curved sewing jig shown in fig. 1.
Fig. 3 is an exploded perspective view of the curved sewing jig shown in fig. 1 from another perspective.
Fig. 4 is a schematic plan view of the curved sewing jig shown in fig. 1.
FIG. 5 is a schematic plan view showing a state of a sewing machine to which the curved surface sewing jig of FIG. 1 is applied
Fig. 6 is a schematic plan view showing another state of the sewing machine to which the curved surface sewing jig of fig. 1 is applied.
Reference numbers in the figures: 1-sewing equipment, 11-sewing mechanism, 12-sliding platform, 13-pressing mechanism, 2-clamp, 21-first clamping plate, 211-first curved part, 212-first sewing groove, 213-supporting strip, 214-first installation part, 215-notch, 22-second clamping plate, 221-second curved part, 222-second sewing groove, 223-installation groove, 224-second installation part, 23-buffer cushion, 231-through groove, a-heel and b-drawstring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 schematically shows a curved sewing jig 2 according to an embodiment of the present invention, detachably mounted on a sewing apparatus 1, the jig 2 comprising the following components:
the first clamping plate 21 is fixedly arranged, the first clamping plate 21 comprises a first curved part 211, and a first sewing groove 212 is arranged on the first curved part 211;
the second clamping plate 22, the second clamping plate 22 is set above the first clamping plate 21 in a lifting and moving way, the second clamping plate 22 includes a second curved part 221, the second curved part 221 is set with a second sewing groove 222;
the second clamping plate 22 and the first clamping plate 21 are distributed vertically and in parallel, the second sewing groove 222 is matched with the first sewing groove 212 in a separable mode, and the second curved part 221 is abutted against the first curved part 211 in a separable mode.
The working principle of the clamp 2 is as follows: the first clamping plate 21 is fixedly arranged, the second clamping plate 22 can move up and down above the first clamping plate 21, and the second clamping plate 22 is attached to the first clamping plate 21 or separated from the first clamping plate 21; during operation, a workpiece is placed on the first clamping plate 21, the second clamping plate 22 and the first clamping plate 21 clamp the workpiece, then a sewing piece is placed on the second sewing groove 222, and the sewing device 1 sews the workpiece and the sewing piece; the curved part is utilized to sew the material containing the radian curved surface, and the radian curved surface positioning sewing is realized through the inner and outer circular arc tangent principle.
To better explain the components in the present embodiment, the present embodiment is explained in detail by using the X, Y, Z-axis three-dimensional concept. The second clamping plate 22 and the first clamping plate 21 are vertically distributed, the first sewing groove 212 and the second sewing groove 222 are arranged along the vertical direction, the vertical direction is marked as a Z axis, the longitudinal direction perpendicular to the Z axis is a Y axis, and the transverse direction perpendicular to the Z axis is an X axis. The plane formed by the X axis and the Y axis is an XY plane, the plane formed by the X axis and the Z axis is an XZ plane, and the plane formed by the Y axis and the Z axis is a YZ plane. Further, the front, rear, left, right, up and down directions in this specification will be described with reference to the arrow direction as a forward direction with reference to fig. 1 to 2: the positive direction of the X axis is a front position, and the negative direction is a rear position; the positive direction of the Z axis is an upper direction, otherwise, the positive direction is a lower direction; the positive direction of the Y axis is the right direction, and the negative direction is the left direction. The end face of the first clamping plate 21 lies in the XY plane.
Referring to fig. 5 to 6, the sewing device 1 includes a sewing mechanism 11, a sliding platform 12, and a pressing mechanism 13, the sliding platform 12 is disposed, the sliding platform 12 is located below the sewing mechanism 11, the pressing mechanism 13 is disposed on the sliding platform 12, a first clamping plate 21 is fixed at a driving end of the sliding platform 12, and a second clamping plate 22 is disposed at a driving end of the pressing mechanism 13. The sewing mechanism 11 is configured to sew a workpiece; the slide table 12 is configured to drive the first clamp plate 21, the pressing mechanism 13, and the second clamp plate 22 on the pressing mechanism 13 to move in a horizontal plane; the pressing mechanism 13 is configured to drive the second clamping plate 22 to move up and down. The working end of the sewing mechanism 11 can move up and down along the Z-axis direction, the driving end of the sliding platform 12 can move on the XY plane, and the driving end of the pressing mechanism 13 can move up and down along the Z axis.
Referring to fig. 2 to 3, a support bar 213 is provided in the first sewing groove 212. The head end of the support bar 213 extends from one end of the first sewing groove 212 to the other end of the first sewing groove 212, and the support bar 213 extends in the X-axis direction; the end of the support bar 213 is separated from the other end of the first sewing groove 212. The supporting bar 213 can provide a supporting force to the workpiece, and the end of the supporting bar 213 and the gap of the first sewing groove 212 can pass the sewing end of the sewing device 1, thereby forming a continuous U-shaped sewing thread.
Referring to fig. 2-3, the curved sewing jig 2 further includes a cushion 23, the cushion 23 is made of acrylic material, and the cushion 23 is formed into a curved body having the same shape as the second curved portion 221 of the second clamping plate 22 by hot bending. The lower end surface of the second clamping plate 22 is provided with a mounting groove 223, the mounting groove 223 is positioned below the second sewing groove 222, the mounting groove 223 is positioned at the edge position of the second sewing groove 222, and the cushion 23 is embedded in the mounting groove 223. The buffer cushion 23 can improve the clamping force of the clamp 2 on the workpiece, and can avoid scraping the workpiece.
Referring to fig. 2-3, the cushion 23 is provided with a through groove 231 identical to the second sewing groove 222, and the through groove 231, the first sewing groove 212 and the second sewing groove 222 are rectangular grooves having round corners and have the same size as the drawstring b. The sewing end of the sewing device 1 sews the workpiece through the through groove 231 and the second sewing groove 222, and the first sewing groove 212 is a clearance part where the workpiece is lowered.
With reference to fig. 2-4, the first curved portion 211 and the second curved portion 221 have the same structure, and both the first curved portion 211 and the second curved portion 221 are disposed in a pseudo-shape with the outer end surface of the heel a; in this embodiment, the first curved portion 211 and the second curved portion 221 are both wave-shaped in side view and have exactly the same curvature as the heel a of the shoe. The workpiece is positioned, clamped and sewn through a first curved part 211 and a second curved part 221 which are arranged in a shape similar to the outer end face of the heel a.
With reference to fig. 2-4, the first clamping plate 21 further includes a first mounting portion 214, the first mounting portion 214 is disposed at the rear end of the first curved portion 211; a second clamping plate 22, further comprising a second mounting portion 224, wherein the second mounting portion 224 is arranged at the rear end of the second curved portion 221; the first mounting portion 214 and the second mounting portion 224 are each provided with a plurality of through holes for mounting to the sewing apparatus 1 by bolts. The first mounting portion 214 is for mounting and the second mounting portion 224 is for mounting.
Referring to fig. 2-3, the edge of the first mounting portion 214 is provided with two notches 215, and the notches 215 are inserted into the sliding platform 12 for positioning, i.e. the notches 215 are used for mounting and positioning. The passing recess 215 of the first clamp plate 21 is positioned and mounted on the sewing machine 1.
The curved surface sewing method using the curved surface sewing clamp 2 comprises the following specific steps:
s1, mounting fixture 2: a first mounting plate is mounted at the drive end of the slide platform 12 and a second mounting plate is mounted at the drive end of the hold-down mechanism 13, as shown in fig. 5.
S2, feeding: the heel a is placed on the upper end face of the first clamping plate 21, the first pressing mechanism 13 is started, the first pressing mechanism 13 drives the second clamping plate 22 to descend, the second clamping plate 22 is matched with the first clamping plate 21 to clamp the heel a, the pull belt b is installed along the opening of the second sewing groove 222, and the pull belt b is attached to the upper end face of the heel a and is located in the second sewing groove 222, as shown in fig. 6.
S3, sewing: the sewing mechanism 11 is started, the sliding platform 12 drives the first clamping plate 21 and the second clamping plate 22 to move, and the pull belt b is sewn on the heel a in cooperation with the sewing mechanism 11.
According to the method, the heel a is clamped by using the structure of the clamp 2, the pull belt b is placed on the upper end face of the heel a, and radian curved surface positioning sewing is realized through the inner and outer circular arc tangent principle.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. Curved surface sewing jig, demountable installation is on sewing machine (1), its characterized in that, anchor clamps (2) include following part:
the first clamping plate (21), the first clamping plate (21) is fixedly arranged, the first clamping plate (21) comprises a first curved part (211), and a first sewing groove (212) is formed in the first curved part (211);
the second clamping plate (22), the second clamping plate (22) is arranged above the first clamping plate (21) in a lifting and moving manner, the second clamping plate (22) comprises a second curved part (221), and a second sewing groove (222) is formed in the second curved part (221);
the second sewing groove (222) is matched with the first sewing groove (212) in a separable mode, and the second curved part (221) is abutted against the first curved part (211) in a separable mode.
2. A curved surface sewing jig according to claim 1, characterized in that the sewing device (1) comprises a sewing mechanism (11), a sliding platform (12), a pressing mechanism (13), the sliding platform (12) is arranged below the sewing mechanism (11), the pressing mechanism (13) is arranged on the sliding platform (12), the first clamping plate (21) is fixed at the driving end of the sliding platform (12), and the second clamping plate (22) is arranged at the driving end of the pressing mechanism (13).
3. The curved surface sewing jig of claim 2, wherein a support bar (213) is provided in the first sewing groove (212), a head end of the support bar (213) extends from one end of the first sewing groove (212) to the other end of the first sewing groove (212), and a tail end of the support bar (213) is separated from the other end of the first sewing groove (212).
4. The curved surface sewing jig of claim 2, further comprising a cushion (23), wherein the lower end surface of the second clamping plate (22) is provided with a mounting groove (223), the mounting groove (223) is located at the edge position of the second sewing groove (222), and the cushion (23) is embedded in the mounting groove (223).
5. The curved surface sewing jig according to claim 4, characterized in that the cushion (23) is provided with a through groove (231) which is the same as the second sewing groove (222), and the through groove (231), the first sewing groove (212) and the second sewing groove (222) have the same shape.
6. The curved surface sewing jig according to claim 2, characterized in that the first curved portion (211) and the second curved portion (221) have the same structure, and the first curved portion (211) and the second curved portion (221) are both arranged in a pseudo-shape with the outer end surface of the heel.
7. The curved sewing jig of claim 2, wherein the first clamp plate (21) further comprises a first mounting portion (214), the first mounting portion (214) being provided at one end of the first curved portion (211); the second clamping plate (22) further comprises a second mounting portion (224), and the second mounting portion (224) is arranged at one end of the second curved portion (221).
8. The curved surface sewing jig of claim 7, wherein the first mounting portion (214) is provided with a notch (215) at an edge position, and the notch (215) is used for mounting and positioning.
9. Curved sewing method, comprising a curved sewing jig (2) according to any one of claims 2 to 7, characterized by further comprising the steps of,
s1, mounting jig (2): the first mounting plate is arranged at the driving end of a sliding platform (12), and the second mounting plate is arranged at the driving end of a pressing mechanism (13);
s2, feeding: placing a heel (a) on the upper end face of a first clamping plate (21), starting a first pressing mechanism (13), driving a second clamping plate (22) to descend by the first pressing mechanism (13), clamping the heel (a) by the second clamping plate (22) in a manner of being matched with the first clamping plate (21), and installing a pull belt (b) on the upper end of the heel (a);
s3, sewing: the sewing mechanism (11) is started, the sliding platform (12) drives the first clamping plate (21) and the second clamping plate (22) to move, and the pull belt (b) is sewn on the heel (a) through the sewing mechanism (11).
10. The curved surface sewing method according to claim 9, wherein in the step S2, the draw tape (b) is installed along an opening of the second sewing groove (222), and the draw tape (b) is attached to the upper end surface of the heel (a) and is positioned in the second sewing groove (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110155631.0A CN112981742A (en) | 2021-02-04 | 2021-02-04 | Curved surface sewing clamp and curved surface sewing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110155631.0A CN112981742A (en) | 2021-02-04 | 2021-02-04 | Curved surface sewing clamp and curved surface sewing method |
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| Publication Number | Publication Date |
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| CN112981742A true CN112981742A (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110155631.0A Pending CN112981742A (en) | 2021-02-04 | 2021-02-04 | Curved surface sewing clamp and curved surface sewing method |
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| CN (1) | CN112981742A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113584733A (en) * | 2021-07-06 | 2021-11-02 | 杭州职业技术学院 | Breast support lining sewing clamp and breast support lining sewing method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05194A (en) * | 1991-06-21 | 1993-01-08 | Takayuki Iwasa | Sewn product handling device for electronic sewing machine |
| WO1999056573A2 (en) * | 1998-05-05 | 1999-11-11 | Mario Ciucani | Method and machine for stitching a shoe upper to a related sole |
| CN204509661U (en) * | 2015-01-27 | 2015-07-29 | 湖南天衡儿童用品股份有限公司 | A kind of numerical control industrial sewing machine |
| CN106835509A (en) * | 2017-02-15 | 2017-06-13 | 爱美（浙江）纺织品有限公司 | A kind of clamping device of curtain taping machine |
| CN207552631U (en) * | 2017-11-30 | 2018-06-29 | 际华三五一五皮革皮鞋有限公司 | A kind of arc-shaped joint tooled joint sewing template |
| CN208501232U (en) * | 2018-06-08 | 2019-02-15 | 启翔股份有限公司 | Curved surface object apparatus for sewing |
| CN209128691U (en) * | 2018-11-27 | 2019-07-19 | 安踏（中国）有限公司 | A kind of auxiliary holding device of sewing machine |
| US20190368092A1 (en) * | 2018-05-31 | 2019-12-05 | Nike, Inc. | Stitching system for a shoe upper |
| CN214694603U (en) * | 2021-02-04 | 2021-11-12 | 中山市志捷鞋业技术服务有限公司 | Curved surface sewing clamp |
-
2021
- 2021-02-04 CN CN202110155631.0A patent/CN112981742A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05194A (en) * | 1991-06-21 | 1993-01-08 | Takayuki Iwasa | Sewn product handling device for electronic sewing machine |
| WO1999056573A2 (en) * | 1998-05-05 | 1999-11-11 | Mario Ciucani | Method and machine for stitching a shoe upper to a related sole |
| CN204509661U (en) * | 2015-01-27 | 2015-07-29 | 湖南天衡儿童用品股份有限公司 | A kind of numerical control industrial sewing machine |
| CN106835509A (en) * | 2017-02-15 | 2017-06-13 | 爱美（浙江）纺织品有限公司 | A kind of clamping device of curtain taping machine |
| CN207552631U (en) * | 2017-11-30 | 2018-06-29 | 际华三五一五皮革皮鞋有限公司 | A kind of arc-shaped joint tooled joint sewing template |
| US20190368092A1 (en) * | 2018-05-31 | 2019-12-05 | Nike, Inc. | Stitching system for a shoe upper |
| CN208501232U (en) * | 2018-06-08 | 2019-02-15 | 启翔股份有限公司 | Curved surface object apparatus for sewing |
| CN209128691U (en) * | 2018-11-27 | 2019-07-19 | 安踏（中国）有限公司 | A kind of auxiliary holding device of sewing machine |
| CN214694603U (en) * | 2021-02-04 | 2021-11-12 | 中山市志捷鞋业技术服务有限公司 | Curved surface sewing clamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113584733A (en) * | 2021-07-06 | 2021-11-02 | 杭州职业技术学院 | Breast support lining sewing clamp and breast support lining sewing method |
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Application publication date: 20210618 |