Button clamp device of button sewing machine and button sewing machine

Abstract

The utility model provides a button clamp device of a button sewing machine and the button sewing machine, and belongs to the technical field of sewing equipment. The button clamp device comprises a mounting plate, a first presser foot and a second presser foot, the inner end of the first presser foot and the inner end of the second presser foot are hinged to the mounting plate, and the mounting plate is further provided with an adjusting plate which can move along the mounting plate and enable the first presser foot and the second presser foot to be close to each other or away from each other. Elastic connecting rods are arranged below the outer ends of the first presser foot and the second presser foot respectively, the outer end of one connecting rod extends to the position below the outer end of the first presser foot, and the outer end of the other connecting rod extends to the position below the outer end of the second presser foot. The connecting rods below the first presser foot and the second presser foot of the button clamp device can deform in a self-adaptive mode according to the left cloth and the right cloth of different heights, elastic pressing is carried out, and adaptability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing equipment and relates to a button clamp device of a button sewing machine and the button sewing machine. Background Art

[0002] In the prior art, the button clamp device used in button sewing machines has a densely raised pyramid-shaped pressing block at the bottom of the presser foot to increase the friction between the presser foot and the fabric, allowing the presser foot to more firmly press the fabric and prevent the fabric from moving during sewing. For the relevant structure of the pressing block, please refer to the patent document with application number 201920147600.9, which provides a button clamp device, including the left and right pressing plates in the button clamp device.

[0003] Since the pressing block is made of metal material without deformation ability, when the heights of the fabric on the left and right sides are different, the left and right presser feet cannot press the fabric at the same time, resulting in one side of the fabric being pressed and the other side being relaxed. During sewing, the relaxed fabric will be moved with the needle, resulting in the fabric not being able to sew, stitches being skipped, and the seam being unable to be formed. Summary of the Invention

[0004] The utility model aims at solving the above problems in the prior art and provides a button clamp device for a button sewing machine. The technical problem to be solved by the utility model is how to perform adaptive pressing on fabrics of different heights.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] A button clamp device for a button sewing machine includes a mounting plate, a first presser foot, and a second presser foot. The inner ends of the first presser foot and the second presser foot are respectively hinged on the mounting plate. The mounting plate is also provided with an adjustment plate that can move along the mounting plate and make the first presser foot and the second presser foot move closer to or away from each other. It is characterized in that elastic connecting rods are respectively provided below the outer ends of the first presser foot and the second presser foot. The outer end of one connecting rod extends below the outer end of the first presser foot, and the outer end of the other connecting rod extends below the outer end of the second presser foot.

[0007] In this button clamp device, when a driving member (such as a cylinder) drives the adjustment plate to move along the mounting plate, the adjustment plate causes the presser foot 1 and the presser foot 2 to move closer to or away from each other, and the outer ends of the presser foot 1 and the presser foot 2 complete the clamping or loosening of the button.

[0008] The connecting rods under presser foot one and presser foot two press the fabrics on the left and right sides respectively. Since the connecting rods are elastic, the two connecting rods can adaptively deform to the left and right fabrics of different heights (thicknesses) and perform elastic compression. They can firmly compress fabrics of different heights and have good adaptability.

[0009] In the above-mentioned button clamp device of a button sewing machine, the connecting rod is a spring sheet, the inner end of the spring sheet is fixed to presser foot one or presser foot two by a screw, and the outer end of the spring sheet extends below the outer end of presser foot one or presser foot two.

[0010] As an embodiment, the connecting rod is a spring sheet, which is detachably fixed to the lower part of the presser foot 1 or the presser foot 2 by a screw, and is easy to disassemble and assemble.

[0011] As another embodiment, the connecting rod may also be a rubber rod, or a rod or sheet made of other materials that can produce elastic deformation.

[0012] In the button clamp device of the button sewing machine described above, the spring sheet includes a sheet body, the sheet body is fixed on the first presser foot or the second presser foot, and the outer end portion of the sheet body has a laterally extending bending portion.

[0013] The bent portion presses the fabric, and the bent portion extends laterally, so as to be able to more fully abut against the fabric and press the fabric more firmly.

[0014] In the button clamp device of the button sewing machine described above, a pressing block made of a flexible material is provided on the bending portion.

[0015] The pressing block made of flexible material presses the fabric to avoid scratching or puncturing the fabric, ensuring that the fabric is firmly pressed while preventing the fabric from being damaged.

[0016] In the above-mentioned button clamp device of a button sewing machine, the pressing block is a rubber piece.

[0017] The pressing block made of rubber material can elastically press the fabric to improve the stability of the pressing material.

[0018] As an embodiment, the pressing block is covered on the bent portion of the spring sheet through a vulcanization process.

[0019] In the above-mentioned button clamp device of a button sewing machine, the bottom of the pressing block is flat.

[0020] The flat pressing block at the bottom can be more fully in contact with the fabric and can press the fabric more firmly.

[0021] In the above-mentioned button clamp device of a button sewing machine, a clearance groove is provided on the mounting plate, a screw is provided on the adjustment plate, the screw is passed through the clearance groove and can move in the clearance groove, two inclined slide grooves are provided on the adjustment plate, and guide rods are respectively installed on the presser foot one and the presser foot two, and each guide rod is located in a corresponding slide groove and can move in the slide groove.

[0022] The adjusting plate is mounted on the mounting plate by screws, and the outer end of the screw is larger than the width of the paving groove, so the adjusting plate will not detach from the mounting plate. When the driving member (such as a cylinder) drives the adjusting plate to move, the screw moves in the paving groove of the mounting plate, and at the same time, each guide rod moves in the corresponding slide groove, so that the presser foot 1 and the presser foot 2 move closer or farther away, and the outer ends of the presser foot 1 and the presser foot 2 complete the clamping or loosening of the button.

[0023] As an embodiment, the guide rod is a screw.

[0024] The utility model also provides a button sewing machine, which comprises any one of the button clamp devices mentioned above.

[0025] Compared with the prior art, the advantages of the present invention are as follows:

[0026] 1. The connecting rods under the presser foot 1 and presser foot 2 of this button clamp device can adaptively deform to the left and right fabrics of different heights (thicknesses) and perform elastic compression. It can firmly compress fabrics of different heights and has good adaptability.

[0027] 2. In this button clamp device, the pressing block made of flexible material presses the fabric to avoid scratching or puncturing the fabric, ensuring that the fabric is firmly pressed while preventing the fabric from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the button clamp device Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the structure of the button clamp device Figure 2 ;

[0030] Figure 3 This is a schematic diagram of the structure of the button clamp device Figure 3 .

[0031] In the figure: 1 mounting plate, 2 presser foot 1, 3 presser foot 2, 4 adjustment plate, 5 connecting rod, 6 sheet body, 7 bending part, 8 pressing block, 9 clearance groove, 10 screw, 11 slide groove, 12 guide rod. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0033] like Figure 1As shown, the button clamp device includes a mounting plate 1, a presser foot 1 2 and a presser foot 2 3. The inner ends of the presser foot 1 2 and the presser foot 2 3 are respectively hinged on the mounting plate 1. The mounting plate 1 is also provided with an adjustment plate 4 that can move along the mounting plate 1 and make the presser foot 1 2 and the presser foot 2 3 move closer to or away from each other. Elastic connecting rods 5 are respectively provided below the outer ends of the presser foot 1 2 and the presser foot 2 3. The outer end of one connecting rod 5 extends below the outer end of the presser foot 1 2, and the outer end of the other connecting rod 5 extends below the outer end of the presser foot 2 3.

[0034] In this button clamp device, when the driving member (such as a cylinder) drives the adjustment plate 4 to move along the mounting plate 1, the adjustment plate 4 causes the presser foot 1 2 and the presser foot 2 3 to move closer to or away from each other, and the outer ends of the presser foot 1 2 and the presser foot 2 3 complete the clamping or loosening of the button.

[0035] The connecting rods 5 below the presser foot 1 2 and the presser foot 2 3 respectively press the fabrics on the left and right sides. Since the connecting rods 5 are elastic, the two connecting rods 5 can adaptively deform to the left and right fabrics of different heights (thicknesses) and perform elastic compression. They can firmly compress fabrics of different heights and have good adaptability.

[0036] like Figure 2 As shown, in this embodiment, the connecting rod 5 is a spring sheet, the inner end of the spring sheet is fixed to the presser foot 1 2 or the presser foot 2 3 by a screw 10, and the outer end of the spring sheet extends to below the outer end of the presser foot 1 2 or the presser foot 2 3.

[0037] As an embodiment, the connecting rod 5 is a spring sheet, which is detachably fixed to the lower part of the presser foot 1 2 or the presser foot 2 3 by a screw 10, and is easy to disassemble and assemble.

[0038] As another embodiment, the connecting rod 5 may also be a rubber rod, or a rod or sheet 6 made of other materials that can produce elastic deformation.

[0039] like Figure 2 As shown, in this embodiment, the spring sheet includes a sheet body 6 , which is fixed on the presser foot 1 2 or the presser foot 2 3 , and an outer end portion of the sheet body 6 has a laterally extending bent portion 7 .

[0040] The bent portion 7 presses the cloth, and the bent portion 7 extends laterally, so that it can be more fully in contact with the cloth and press the cloth more firmly.

[0041] like Figure 3 As shown, in this embodiment, a pressing block 8 made of a flexible material is provided on the bending portion 7 .

[0042] The pressing block 8 made of a flexible material presses the cloth to avoid scratching or puncturing the cloth, ensuring that the cloth is firmly pressed while preventing the cloth from being damaged.

[0043] As an embodiment, the pressing block 8 is a rubber piece.

[0044] The pressing block 8 made of rubber material can elastically press the cloth to improve the stability of the pressing material.

[0045] As an embodiment, the pressing block 8 is covered on the bent portion 7 of the spring leaf through a vulcanization process.

[0046] Preferably, the bottom of the pressing block 8 is flat.

[0047] The pressing block 8 with a flat bottom can be more fully in contact with the cloth and can press the cloth more firmly.

[0048] like Figure 1 and 2 As shown, in this embodiment, a clearance groove 9 is provided on the mounting plate 1, a screw 10 is provided on the adjusting plate 4, the screw 10 is passed through the clearance groove 9 and can move in the clearance groove 9, two inclined slide grooves 11 are provided on the adjusting plate 4, and a guide rod 12 is respectively installed on the presser foot 1 2 and the presser foot 2 3, and each guide rod 12 is respectively located in a corresponding slide groove 11 and can move in the slide groove 11.

[0049] The adjusting plate 4 is mounted on the mounting plate 1 by screws. The outer end of the screw is larger than the width of the clearance groove 9, and the adjusting plate 4 will not detach from the mounting plate 1. When the driving member (such as a cylinder) drives the adjusting plate 4 to move, the screw 10 moves in the clearance groove 9 of the mounting plate 1, and at the same time, each guide rod 12 moves in the corresponding slide groove 11, so that the presser foot 1 2 and the presser foot 2 3 are moved closer or farther away, and the outer ends of the presser foot 1 2 and the presser foot 2 3 complete the clamping or loosening of the button.

[0050] As an embodiment, the guide rod 12 is a screw.

[0051] The utility model also provides a button sewing machine, which comprises any one of the button clamp devices mentioned above.

[0052] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A button clamp device for a button sewing machine, comprising a mounting plate (1), a first presser foot (2) and a second presser foot (3), wherein the inner ends of the first presser foot (2) and the second presser foot (3) are respectively hinged on the mounting plate (1), and the mounting plate (1) is further provided with an adjusting plate (4) which can move along the mounting plate (1) and make the first presser foot (2) and the second presser foot (3) move closer to or farther away from each other, characterized in that: Elastic connecting rods (5) are respectively provided below the outer ends of the first presser foot (2) and the second presser foot (3), the outer end of one connecting rod (5) extending below the outer end of the first presser foot (2), and the outer end of the other connecting rod (5) extending below the outer end of the second presser foot (3).

2. A button clamp device for a button sewing machine according to claim 1, characterized in that: The connecting rod (5) is a spring sheet, the inner end of which is fixed to the first presser foot (2) or the second presser foot (3) by a screw (10), and the outer end of which extends below the outer end of the first presser foot (2) or the second presser foot (3).

3. The button clamp device of a button sewing machine according to claim 2, characterized in that: The spring sheet comprises a sheet body (6), which is fixed on the first presser foot (2) or the second presser foot (3), and the outer end of the sheet body (6) has a laterally extending bending portion (7).

4. The button clamp device of a button sewing machine according to claim 3, characterized in that: A pressing block (8) made of a flexible material is provided on the bending portion (7).

5. The button clamp device of a button sewing machine according to claim 4, characterized in that: The pressing block (8) is a rubber piece.

6. The button clamp device of a button sewing machine according to claim 4, characterized in that: The bottom of the pressing block (8) is flat.

7. A button clamp device for a button sewing machine according to any one of claims 1 to 6, characterized in that: The mounting plate (1) is provided with a clearance groove (9), the adjusting plate (4) is provided with a screw (10), the screw (10) is passed through the clearance groove (9) and can move in the clearance groove (9), the adjusting plate (4) is provided with two inclined sliding grooves (11), the presser foot 1 (2) and the presser foot 2 (3) are respectively provided with a guide rod (12), each guide rod (12) is respectively located in a corresponding sliding groove (11) and can move in the sliding groove (11).

8. A button sewing machine, characterized in that: The button sewing machine comprises a button clamp device according to any one of claims 1-7.

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