Cloth clamping and fixing structure of sewing machine

Abstract

The utility model discloses a sewing machine cloth clamping and fixing structure, and belongs to the technical field of cloth clamping and fixing, the clamping and fixing structure comprises a sewing machine main body and a bearing plate, the two sides of the bearing plate are symmetrically provided with first sliding grooves respectively, the inner walls of the first sliding grooves are slidably provided with supporting frames, the supporting frames are arranged in an L shape, and the first sliding grooves are provided with second sliding grooves. A clamping plate is slidably mounted on one side of the inner wall of the supporting frame, an adjusting assembly is mounted on the clamping plate, first supporting plates are symmetrically and slidably mounted at the top end of the bearing plate, the first supporting plates are also L-shaped, the two ends of each first supporting plate are connected with driving assemblies, and first springs are symmetrically and fixedly mounted at the top ends of the inner walls of the first supporting plates; a pressing seat is fixedly installed at the bottom end of the first spring, a pull rod is rotatably installed at the top end of the pressing seat, and the top end of the pull rod slidably penetrates through the first supporting plate and is fixedly provided with a pull block. Therefore, the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cloth clamping and fixing, in particular to a cloth clamping and fixing structure for a sewing machine. Background Art

[0002] Sewing machines are needed in the process of garment processing. Sewing machines are machines that use one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing materials are interwoven or sewn together. Sewing machines can sew fabrics into finished products. The stitches are neat, beautiful, flat and firm, with fast sewing speed and easy use.

[0003] Existing sewing machines generally require a clamping and fixing mechanism to fix the fabric during use, but the fixed fabric is inconvenient to move, resulting in low practicality. At the same time, it is inconvenient to install and disassemble, resulting in inconvenience in replacement and maintenance at a later stage. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a sewing machine cloth clamping and fixing structure, aiming to improve the problem that the cloth is inconvenient to move after being fixed by the existing clamping and fixing mechanism, resulting in low practicality, and is inconvenient to install and disassemble, resulting in inconvenience in replacement and maintenance at a later time.

[0005] The utility model is implemented as follows: a fabric clamping and fixing structure for a sewing machine comprises a sewing machine body and a carrying plate, first slide grooves are symmetrically arranged on both sides of the carrying plate, a support frame is slidably installed on the inner wall of the first slide groove, the support frame is L-shaped, a clamping plate is slidably installed on one side of the inner wall of the support frame, an adjustment component is installed on the clamping plate, the first support plate is symmetrically slidably installed on the top of the carrying plate, the first support plate is also L-shaped and has driving components connected at both ends, a first spring is symmetrically fixedly installed on the top of the inner wall of the first support plate, a clamping seat is fixedly installed on the bottom end of the first spring, a pull rod is rotatably installed on the top of the clamping seat, and the top of the pull rod slides through the first support plate and is fixedly installed with a pull block.

[0006] In a preferred technical solution of the present utility model, a second spring is fixedly installed between the inner wall of the first sliding groove and one end of the support frame.

[0007] In the preferred technical solution of the utility model, a limit block is symmetrically fixedly installed at the outlet of the inner wall of the first slide groove, a limit groove matching the limit block is provided on the support frame, and the limit block is slidably connected to the inner wall of the limit groove.

[0008] In the preferred technical scheme of the present utility model, the adjusting assembly includes a first threaded rod and a first turntable, a second slide groove is provided on the inner side wall of the support frame, the first threaded rod is rotatably installed between the two sides of the inner wall of the second slide groove, the clamping plate is threadedly installed on the first threaded rod, the first rotating shaft is fixedly installed on the bottom end of the first threaded rod, the bottom end of the first rotating shaft passes through the support frame and fixedly installs the first turntable, one end of the clamping plate is slidably installed in the second slide groove, and an anti-slip pad is fixedly installed on one side of the top end of the clamping plate.

[0009] In the preferred technical solution of the utility model, the first slider is symmetrically fixed on both sides of the splint, one end of the first slider passes through the support frame, and first strip holes matching the first slider are provided on both sides of the support frame, and the first slider is slidably connected to the inner wall of the first strip hole.

[0010] In the preferred technical scheme of the present utility model, the driving assembly includes a slide plate, a two-way threaded rod and a connecting frame, a driving cavity is provided in the bearing plate, the slide plate is symmetrically and slidingly installed in the driving cavity, the two-way threaded rod is rotatably installed between the two sides of the inner wall of the driving cavity, the two slide plates are symmetrically threadedly installed on the two-way threaded rod, one end of the two-way threaded rod is fixedly installed with a second rotating shaft, one end of the second rotating shaft passes through the bearing plate and fixedly installed with a second turntable, the connecting frame is symmetrically and fixedly installed at both ends of the slide plate, the connecting frame is L-shaped, one end of the connecting frame at both ends slides through the bearing plate and is fixedly connected to the two ends of the first support plate, second strip holes matching the connecting frame are symmetrically provided on both sides of the bearing plate, the connecting frame is slidably connected to the inner wall of the second strip hole, and the threads on the two-way threaded rod are centrally symmetrically arranged.

[0011] In the preferred technical solution of the utility model, a first guide rod is fixedly installed between the two sides of the inner wall of the driving cavity, the slide plate is slidably installed on the first guide rod, and two first guide rods are symmetrically arranged on the two sides of the bidirectional threaded rod.

[0012] In the preferred technical solution of the utility model, the pressing seat is U-shaped, and a plurality of pressing rollers are rotatably mounted on the inner wall of the pressing seat.

[0013] In the preferred technical solution of the utility model, the second guide rod is symmetrically fixedly installed on the top of the clamping seat, the top of the second guide rod passes through the first support plate and is fixedly installed with a support strip, the pull rod slides through the support strip, the first spring is movably sleeved on the outer side of the second guide rod, and a support ring is fixedly installed on the pull rod, and the support ring is slidably connected to the bottom end of the support strip.

[0014] In the preferred technical solution of the utility model, a support block is fixedly installed on the outside of the pull rod, a through hole matching the support block is provided on the first support plate, and a groove matching the support block is provided on the top of the first support plate, and the groove and the through hole are symmetrically arranged on the outside of the pull rod.

[0015] The beneficial effects of the utility model are as follows: the utility model obtains a cloth clamping and fixing structure for a sewing machine through the above-mentioned design, wherein the bearing plate is placed on the desktop of the sewing machine body, and the support frames on both sides are stretched at the same time to drive the second spring to stretch and put it on the desktop of the sewing machine body. After releasing the hand, the support frame is driven by the pulling force of the second spring to move back to clamp and fix the sewing machine body. At this time, each first turntable is rotated respectively to drive the first threaded rod to rotate through the first rotating shaft, and the rotation of the first threaded rod drives the clamping plate to move up and cooperate with the support frame to fix the two sides of the table board of the sewing machine body, which is convenient for quick installation and disassembly of the clamping structure and convenient for later maintenance and replacement, thereby improving the practicality in use; when working, the pull block is first pulled to drive the pull rod to move up, and the pull rod moves up to drive the clamping seat to move up to separate from the bearing plate, and the first support plate moves up to create a pressure on the first spring. To form an extrusion, the pull rod moves up and drives the support block to move up and pass through the through hole. At this time, the pull rod is rotated to drive the support block to rotate to the top of the groove and then release the hand. After releasing the hand, the support block is driven to be clamped in the groove and fixed by the pulling force of the first spring. At this time, the cloth is placed on the carrying plate, and the second turntable is rotated to drive the two-way threaded rod to rotate through the second rotating shaft. The rotation of the two-way threaded rod drives the two first support plates to move relative to each other to a suitable clamping position through the cooperation of the slide plate and the connecting frame. At this time, the pull block is pulled to drive the pull rod to move up until the support block is out of the groove and then rotated 180° and released. The elastic force of the first spring drives the clamping seat to move down to the clamping roller to squeeze and fix the cloth. The clamping roller can be used to clamp the cloth and ensure that the cloth will not be hindered when moving. Cloths of different widths and specifications can be clamped and used through adjustment. It has a wide range of applications and perfect functional diversity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a structural schematic diagram of a cloth clamping and fixing structure for a sewing machine provided by an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the internal structure of the first chute is provided for the embodiment of the utility model;

[0019] Figure 3 A structural schematic diagram of a support frame is provided for an implementation mode of the utility model;

[0020] Figure 4 A schematic diagram of the structure of a drive assembly is provided for an embodiment of the utility model;

[0021] Figure 5 A schematic structural diagram of a first support plate is provided for an embodiment of the utility model;

[0022] Figure 6 A structural schematic diagram of a pull rod is provided for an implementation mode of the utility model.

[0023] In the figure: 110-sewing machine body; 120-carrying plate; 121-support frame; 122-clamping plate; 123-second spring; 124-first threaded rod; 125-first turntable; 130-first support plate; 131-first spring; 132-pressure seat; 133-pull rod; 134-pull block; 135-pressure roller; 136-support bar; 137-support block; 140-slide plate; 141-bidirectional threaded rod; 142-connecting frame; 143-second turntable; 144-first guide rod. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 and Figure 2 The utility model provides a technical solution: a cloth clamping and fixing structure for a sewing machine, comprising a sewing machine body 110 and a carrying plate 120, first slide grooves are symmetrically arranged on both sides of the carrying plate 120, a support frame 121 is slidably installed on the inner wall of the first slide groove, the support frame 121 is L-shaped, a clamping plate 122 is slidably installed on one side of the inner wall of the support frame 121, an adjusting component is installed on the clamping plate 122, a first support plate 130 is symmetrically slidably installed on the top of the carrying plate 120, the first support plate 130 is also L-shaped and has driving components connected at both ends, a first spring 131 is symmetrically fixedly installed on the top of the inner wall of the first support plate 130, a clamping seat 132 is fixedly installed on the bottom end of the first spring 131, a pull rod 133 is rotatably installed on the top of the clamping seat 132, and the top of the pull rod 133 slides through the first support plate 130 and is fixedly installed with a pull block 134.

[0026] In some specific implementation schemes, a second spring 123 is fixedly installed between the inner wall of the first slide groove and one end of the support frame 121. The elastic force of the second spring 123 pulls the support frame 121 to move, thereby improving the stability of the supporting plate 120 during installation.

[0027] See also Figure 3 A limit block is symmetrically fixedly installed at the exit of the inner wall of the first slide groove, a limit groove matching the limit block is provided on the support frame 121, the limit block is slidably connected to the inner wall of the limit groove, the adjustment component includes a first threaded rod 124 and a first turntable 125, a second slide groove is provided on the inner side wall of the support frame 121, the first threaded rod 124 is rotatably installed between the two sides of the inner wall of the second slide groove, the clamping plate 122 is threadedly installed on the first threaded rod 124, the bottom end of the first threaded rod 124 is fixedly installed with a first rotating shaft, the bottom end of the first rotating shaft passes through the support frame 121 and is fixedly installed with the first turntable 125, one end of the clamping plate 122 is slidably installed in the second slide groove, and an anti-slip pad is fixedly installed on one side of the top end of the clamping plate 122.

[0028] In some specific embodiments, the first slider is symmetrically fixed on both sides of the splint 122, one end of the first slider passes through the support frame 121, and first strip holes matching the first slider are provided on both sides of the support frame 121. The first slider is slidably connected to the inner wall of the first strip hole. The cooperation between the first slider and the first strip hole improves the stability of the splint 122 when it moves.

[0029] See also Figure 4 The driving assembly includes a slide plate 140, a bidirectional threaded rod 141 and a connecting frame 142. A driving cavity is provided in the carrying plate 120. The slide plate 140 is symmetrically slidably installed in the driving cavity. The bidirectional threaded rod 141 is rotatably installed between the inner walls of the driving cavity. The two slide plates 140 are symmetrically threaded on the bidirectional threaded rod 141. One end of the bidirectional threaded rod 141 is fixedly installed with a second rotating shaft, one end of the second rotating shaft passes through the carrying plate 120 and is fixedly installed with a second turntable 143. The connecting frames 142 are symmetrically fixedly installed at both ends of the slide plate 140. The connecting frames 142 are L-shaped, and one end of the connecting frames 142 at both ends slides through the carrying plate 120 and is fixedly connected to the two ends of the first support plate 130. Second strip holes matching the connecting frames 142 are symmetrically provided on both sides of the carrying plate 120, and the connecting frames 142 are slidably connected to the inner wall of the second strip hole. The threads on the bidirectional threaded rod 141 are centrally symmetrically arranged.

[0030] In some specific embodiments, a first guide rod 144 is fixedly installed between the two sides of the inner wall of the driving cavity, and the slide plate 140 is slidably installed on the first guide rod 144. The two first guide rods 144 are symmetrically arranged on both sides of the bidirectional threaded rod 141. The arrangement of the first guide rod 144 improves the stability of the slide plate 140 when it moves.

[0031] See also Figure 5 and Figure 6 The pressing seat 132 is U-shaped, and a plurality of pressing rollers 135 are rotatably installed on the inner wall of the pressing seat 132. A second guide rod is symmetrically fixedly installed on the top of the pressing seat 132. The top of the second guide rod passes through the first support plate 130 and is fixedly installed with a support strip 136. The pull rod 133 slides through the support strip 136. The first spring 131 is movably sleeved on the outer side of the second guide rod. A support ring is fixedly installed on the pull rod 133, and the support ring is slidably connected to the bottom end of the support strip 136. The pressing roller 135 can not only press the cloth, but also ensure that the cloth will not be obstructed when moving.

[0032] In some specific implementation schemes, a support block 137 is fixedly installed on the outside of the pull rod 133, a through hole matching the support block 137 is provided on the first support plate 130, and a groove matching the support block 137 is provided on the top of the first support plate 130. The groove and the through hole are symmetrically arranged on the outside of the pull rod 133, so as to facilitate the limited support of the pull rod 133 after it is pulled up, and facilitate the discharge and adjustment.

[0033] Working principle: put the carrier plate 120 on the desktop of the sewing machine body 110, and at the same time stretch the support frames 121 on both sides to move and drive the second spring 123 to stretch and put it on the desktop of the sewing machine body 110. After releasing your hand, the pulling force of the second spring 123 drives the support frame 121 to move back to clamp and fix the sewing machine body 110. At this time, rotate each first turntable 125 and drive the first threaded rod 124 to rotate through the first rotating shaft. The rotation of the first threaded rod 124 drives the clamping plate 122 to move up and cooperate with the support frame 121 to fix both sides of the desktop of the sewing machine body 110. When working, first pull the pull block 134 to drive the pull rod 133 to move up. The pull rod 133 moves up and drives the clamping seat 132 to move up until the clamping roller 135 is separated from the carrier plate 120. The first support plate 130 moves up to squeeze the first spring 131. The pull rod 133 moves up and drives the support plate 122 to move up. The block 137 moves up to pass through the through hole, at this time, the pull rod 133 is rotated to drive the support block 137 to rotate to the top of the groove and then release the hand. After releasing the hand, the support block 137 is clamped and fixed in the groove through the pulling force of the first spring 131. At this time, the cloth is placed on the carrying plate 120, and the second turntable 143 is rotated to drive the bidirectional threaded rod 141 to rotate through the second rotating shaft. The bidirectional threaded rod 141 rotates through the slide plate 140 and the connecting frame 142 to drive the two first support plates 130 to move relative to each other to a suitable clamping position. At this time, the pull block 134 is pulled to drive the pull rod 133 to move up until the support block 137 is out of the groove and then rotated 180° and release the hand. The elastic force of the first spring 131 drives the clamping seat 132 to move down to the clamping roller 135 to squeeze and fix the cloth. The clamping roller 135 can not only achieve the clamping of the cloth, but also ensure that the cloth will not be hindered when moving.

[0034] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cloth clamping and fixing structure for a sewing machine, comprising a sewing machine body and a bearing plate, characterized in that: The first slide grooves are symmetrically arranged on both sides of the bearing plate, and the support frame is slidably installed on the inner wall of the first slide groove. The support frame is L-shaped, and a clamping plate is slidably installed on one side of the inner wall of the support frame. An adjustment component is installed on the clamping plate, and the first support plate is symmetrically slidably installed on the top of the bearing plate. The first support plate is also L-shaped and has driving components connected to both ends. A first spring is symmetrically fixedly installed on the top of the inner wall of the first support plate, and a clamping seat is fixedly installed on the bottom end of the first spring. A pull rod is rotatably installed on the top of the clamping seat, and the top of the pull rod slides through the first support plate and fixedly installs a pull block.

2. A cloth clamping and fixing structure for a sewing machine according to claim 1, characterized in that: A second spring is fixedly installed between the inner wall of the first sliding groove and one end of the supporting frame.

3. The cloth clamping and fixing structure for a sewing machine according to claim 1, characterized in that: A limiting block is symmetrically fixedly installed at the outlet of the inner wall of the first sliding groove, and a limiting groove matching the limiting block is arranged on the supporting frame.

4. The cloth clamping and fixing structure for a sewing machine according to claim 1, characterized in that: The adjustment assembly includes a first threaded rod and a first turntable. A second slide groove is provided on the inner wall of the support frame. The first threaded rod is rotatably installed between the two sides of the inner wall of the second slide groove. The clamping plate is threadedly installed on the first threaded rod. The first rotating shaft is fixedly installed at the bottom end of the first threaded rod. The bottom end of the first rotating shaft passes through the support frame and fixes the first turntable.

5. The cloth clamping and fixing structure for a sewing machine according to claim 4, characterized in that: First sliding blocks are symmetrically fixedly installed on both sides of the clamping plate, one end of the first sliding block passes through the support frame, and first strip holes matching the first sliding blocks are arranged on both sides of the support frame.

6. The cloth clamping and fixing structure for a sewing machine according to claim 1, characterized in that: The driving assembly includes a slide plate, a bidirectional threaded rod and a connecting frame, a driving cavity is provided in the bearing plate, the slide plate is symmetrically slidably installed in the driving cavity, the bidirectional threaded rod is rotatably installed between the two sides of the inner wall of the driving cavity, two slide plates are symmetrically threadedly installed on the bidirectional threaded rod, one end of the bidirectional threaded rod is fixedly installed with a second rotating shaft, one end of the second rotating shaft passes through the bearing plate and fixedly installed with a second turntable, the connecting frames are symmetrically fixedly installed at both ends of the slide plate, the connecting frames are L-shaped, one end of the connecting frames at both ends slides through the bearing plate and is fixedly connected to the two ends of the first support plate, and second strip holes matching the connecting frames are symmetrically provided on both sides of the bearing plate.

7. A cloth clamping and fixing structure for a sewing machine according to claim 6, characterized in that: A first guide rod is fixedly installed between two sides of the inner wall of the driving cavity, and the slide plate is slidably installed on the first guide rod.

8. The cloth clamping and fixing structure for a sewing machine according to claim 1, characterized in that: The pressing seat is U-shaped, and a plurality of pressing rollers are rotatably mounted on the inner wall of the pressing seat.

9. The cloth clamping and fixing structure for a sewing machine according to claim 1, characterized in that: The top end of the clamping seat is symmetrically fixed with a second guide rod, the top end of the second guide rod passes through the first support plate and is fixedly installed with a support strip, and the pull rod slides through the support strip.

10. The cloth clamping and fixing structure for a sewing machine according to claim 1, characterized in that: A support block is fixedly installed on the outside of the pull rod, a through hole matching the support block is arranged on the first support plate, and a groove matching the support block is arranged on the top of the first support plate, and the groove and the through hole are symmetrically arranged on the outside of the pull rod.

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