Label positioning mechanism for sewing machine

Abstract

The utility model discloses a label positioning mechanism for a sewing machine, the positioning mechanism is arranged at a pressing claw arranged on a material conveying device used for pressing and dragging materials in the sewing machine, the positioning mechanism comprises a rod body and a pressing block, and the rod body penetrates through and is matched in a material pressing end of the pressing claw. The pressing block is integrally formed at the end, away from the material pressing end, of the rod body in the length direction, the part, between the pressing block and the material pressing end, of the rod body is an adjusting section with the variable length, and the pressing block, the material pressing end and the adjusting section form a material pressing part for fabric and labels placed on the surface of a workbench of the sewing machine. The pressing part performs circular motion in a plane perpendicular to the surface of the workbench by taking the end part, far away from the pressing end side, of the pressing claw as a center, and the positioning mechanism presses a label clamped between two pieces of fabric while the fabric is pressed by the pressing claw; and the position of the label is prevented from deviating in the process that the material conveying device drags the fabric to move to the machine head of the sewing machine.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary processing devices in sewing processing, in particular to a label positioning mechanism for a sewing machine. Background Art

[0002] In the process of sewing clothes, it is necessary to sew the label with the clothing data on the fabric of the clothes. When sewing the label, one end of the label is generally clamped at the sewing position of the two pieces of fabric, and the label is sewn on the fabric in a way of sewing. When a sewing machine with an automatic feeding device with a pressure claw is used for clothing manufacturing, the fabric and the label need to be placed on the surface of the workbench, and the fabric and the label are pressed on the surface of the workbench by the pressure claw and then transferred to the sewing processing position of the sewing machine. In the process of sewing the fabric and the label, due to the different sizes of labels of different clothing products, if the length of the pressure claw is limited, the pressing length of the pressure claw on the label is insufficient. When the automatic feeding device drags the label and the fabric to move on the surface of the workbench, the label is easy to deviate from between the two pieces of fabric, resulting in that after the label and the fabric are transferred to the processing position for sewing, the end of the label is not completely sewn at the sewing position of the fabric, causing the label to fall off easily, affecting the sewing effect of the clothes. Utility Model Content

[0003] In view of the above technical deficiencies, the utility model provides a positioning mechanism which can press a label clamped between two pieces of fabric while pressing the fabric with a pressing claw, so as to prevent the position of the label from shifting when the fabric is dragged by a material transmission device to move to the head of a sewing machine.

[0004] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0005] The utility model discloses a label positioning mechanism for a sewing machine, which is arranged at a pressing claw equipped with a material transmission device in the sewing machine for pressing and dragging materials, the positioning mechanism comprises a rod body and a pressing block, the rod body penetrates and fits in the material pressing end of the pressing claw, the pressing block is integrally formed at the end of the rod body far away from the material pressing end in the length direction, the rod body between the pressing block and the material pressing end is an adjustment section with variable length, the pressing block, the material pressing end and the adjustment section form a material pressing part for the fabric and the label placed on the workbench surface of the sewing machine, and the material pressing part performs circular motion in a plane perpendicular to the workbench surface with the end of the pressure claw far away from the material pressing end as the center.

[0006] Furthermore, the wall surface of the pressing end outside the rod body is provided with at least one mounting hole, and the mounting hole is fitted with a shaft-type fixing member pressed on the side wall of the rod body to fix the position of the rod body in the pressing end.

[0007] Furthermore, the mounting hole is a threaded hole, the shaft-type fixing member is a screw, the screw is fitted in the threaded hole by threaded fitting, and the end with the threaded side presses the rod body.

[0008] Furthermore, the mounting hole is a through hole, and the shaft-type fixing member is a pin. The pin is fitted in the through hole in an interference fit manner and the rod body is pressed by its end.

[0009] Furthermore, the outer surfaces of both ends of the rod body in the length direction are provided with external thread sections, and the rod body is provided with internal thread sections at the penetration position of the pressing end, and the rod body is connected in the pressing end through the cooperation between the external thread section and the internal thread section.

[0010] Furthermore, the pressing block is formed in a semi-enclosed form at one end of the rod body in the length direction, and the end surface of the pressing block away from the rod body is a plane.

[0011] Furthermore, the pressing block is formed in a surrounding manner at one end of the rod body in the length direction, and the cross section of the pressing block is rectangular or circular.

[0012] The beneficial effects of the utility model are:

[0013] The positioning mechanism moves with the pressing end of the pressing claw. When the pressing end presses the fabric, the label clamped between the two pieces of fabric is pressed to prevent the label from shifting in position when the material transmission device uses the pressing claw to drag the fabric to the sewing machine head. The length of the rod connected to the pressing block extending out of the pressing end can be adjusted to accommodate labels of different sizes, so that the pressing block can press the entire label to ensure that there will be no problems of thread throwing, thread missing, and thread jump when the label is sewn with the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure when the positioning mechanism is arranged on a sewing machine.

[0015] Figure 2 It is a structural schematic diagram of the positioning mechanism.

[0016] Figure 3 It is a schematic diagram of the structure in which the rod body is fitted in the pressure claw.

[0017] Figure 4 It is a structural schematic diagram of the rod body fitting in the pressing end when the mounting hole is a threaded hole.

[0018] Figure 5 It is a structural schematic diagram of the rod body fitting in the pressing end when the mounting hole is a through hole.

[0019] Figure 6 It is a schematic diagram of the structure of the external thread section and the internal thread section.

[0020] Figure 7 The figure is a schematic diagram of a structure in which a pressing block and a rod body are integrally formed.

[0021] Figure 8 It is a schematic diagram of another structure in which a pressing block and a rod body are integrally formed.

[0022] In the figure, 1, sewing machine; 2, material transmission device; 3, pressure claw; 4, rod body; 5, pressure block; 6, adjustment section; 7, material pressing part; 8, mounting hole; 9, threaded hole; 10, screw; 11, through hole; 12, pin; 13, external thread section; 14, internal thread section; 15, material pressing end. DETAILED DESCRIPTION

[0023] The utility model discloses a label positioning mechanism for a sewing machine, such as Figures 1 to 3 As shown in combination, the positioning mechanism is arranged at a pressing claw 3 equipped with a material transmission device 2 in the sewing machine 1 for pressing and dragging materials. The positioning mechanism includes a rod body 4 and a pressing block 5. The rod body 4 penetrates and fits in the pressing end 15 of the pressing claw 3. The pressing block 5 is integrally formed at the end of the rod body 4 away from the pressing end 15 in the length direction. The rod body 4 between the pressing block 5 and the pressing end 15 is an adjustment section 6 with variable length. The pressing block 5, the pressing end 15 and the adjustment section 6 form a pressing part 7 for the fabric and label placed on the worktable surface of the sewing machine 1. The pressing part 7 performs circular motion in a plane perpendicular to the worktable surface with the end of the pressing claw 3 away from the pressing end 15 as the center.

[0024] It should be noted that, during the sewing process, after the labels to be sewn are placed between multiple pieces of fabric, the entire combination of fabric and label is placed on the workbench surface, and when the pressing end 15 rotates and presses to the top of the sewing end of the fabric and the label, as the pressing claw 3 moves, the pressing block 5 presses the label clamped between the two pieces of fabric, and the pressing block 5 presses the portion of the label in the length direction and away from the sewing end, thereby preventing the label from being offset in the process of the material transmission device 2 using the pressing claw 3 to drag the fabric to the head of the sewing machine 1, and the length of the rod 4 connected to the pressing block 5 extending out of the pressing end 15 can be adjusted to adapt to labels of different sizes, so that the pressing block 5 can press the entire label to ensure that there will be no problems of thread throwing, thread leakage, and thread jump when the label is sewn with the fabric.

[0025] As a further preferred embodiment of the present invention, Figure 3 As shown, at least one mounting hole 8 is provided on the wall surface of the pressing end 15 outside the rod body 4 , and a shaft-type fixing member is fitted in the mounting hole 8 and pressed against the side wall of the rod body 4 to fix the position of the rod body 4 in the pressing end 15 .

[0026] By installing a shaft-type fixing part into the mounting hole 8 and using the shaft-type fixing part to press the rod body 4 , the rod body 4 can be stably fixed to the pressing end 15 after the length adjustment operation of the adjustment section 6 is completed.

[0027] As one of the embodiments of the present utility model, Figure 4 As shown, the mounting hole 8 is a threaded hole 9, and the shaft-type fixing member is a screw 10. The screw 10 is fitted in the threaded hole 9 by threaded fitting, and the end with the threaded side presses the rod body 4.

[0028] Among them, the screw is installed into the screw hole, and the end with the threaded side of the screw is used to press against the surface of the rod body 4 on the opposite side of the screw hole, so that the rod body 4 can be detachably connected to the pressing end 15. When adjustment is needed, the screw can be removed with the help of tools to adjust the length of the adjustment section 6.

[0029] As one of the embodiments of the present utility model, Figure 5 As shown, the mounting hole 8 is a through hole 11, and the shaft-type fixing member is a pin 12. The pin 12 is fitted in the through hole 11 in an interference fit manner and uses its end to press the rod body 4.

[0030] Among them, the pin 12 is installed into the through hole 11, and the pin 12 is used to press against the surface of the rod body 4 on the opposite side of the through hole 11, so that the rod body 4 is fixedly connected to the pressing end 15. When adjustment is needed, the pin 12 can be destroyed and removed with the help of tools to adjust the length of the adjustment section 6.

[0031] As one of the embodiments of the present utility model, Figure 6 As shown, the outer surfaces of both ends of the rod body 4 in the length direction are provided with external thread sections 13, and the rod body 4 is provided with internal thread sections 14 at the penetration position of the pressing end 15. The rod body 4 is connected in the pressing end 15 through the cooperation between the external thread sections 13 and the internal thread sections 14.

[0032] By twisting the rod body 4 and utilizing the connection between the external thread segment 13 and the internal thread segment 14 , the distance that the adjusting segment 6 of the rod body 4 extends out of the pressing end 15 is adjusted, thereby adjusting the length of the pressing portion 7 and changing the position of the pressing block 5 .

[0033] As one of the embodiments of the present utility model, Figure 7 As shown, the pressing block 5 is formed in a semi-enclosed form at one end of the rod body 4 in the length direction, and the end surface of the pressing block 5 away from the rod body 4 is a plane.

[0034] When the material conveying device 2 drags the fabric and label to move on the workbench, the end surface of the pressing block 5 away from the rod body 4 has a larger contact area with the label, which can improve the pressing effect on the label and greatly reduce the possibility of label position deviation.

[0035] As one of the embodiments of the present utility model, Figure 8 As shown, the pressing block 5 is formed in a surrounding manner at one end of the rod body 4 in the length direction, and the cross section of the pressing block 5 is rectangular or circular.

[0036] Among them, the pressing block 5 is formed on the rod body 4 in an enclosing form, and the processing operation on the pressing block 5 and the rod body 4 becomes more convenient. Moreover, the pressing block 5 has a surface for pressing the label in the circumferential direction of its central axis, and can be adjusted according to the different matching structures between the rod body 4 and the pressing end 15, so that the position adjustment of the rod body 4 in the pressing end 15 will not cause the pressing block 5 to be unable to press against the label surface.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A label positioning mechanism for a sewing machine, the positioning mechanism being arranged at a pressing claw of a material transmission device for pressing and dragging a material in a sewing machine, characterized in that: The positioning mechanism includes a rod body and a pressure block, the rod body penetrates and fits in the pressing end of the pressing claw, the pressure block is integrally formed at the end of the rod body away from the pressing end in the length direction, the rod body between the pressure block and the pressing end is an adjustment section with variable length, the pressure block, the pressing end and the adjustment section form a pressing part for the fabric and label placed on the worktable surface of the sewing machine, and the pressing part performs circular motion in a plane perpendicular to the worktable surface with the end of the pressing claw away from the pressing end as the center.

2. A label positioning mechanism for a sewing machine according to claim 1, characterized in that: The pressing end wall surface outside the rod body is provided with at least one mounting hole, and the mounting hole is matched with a shaft-type fixing part pressed on the side wall of the rod body to fix the position of the rod body in the pressing end.

3. A label positioning mechanism for a sewing machine according to claim 2, characterized in that: The mounting hole is a threaded hole, the shaft-type fixing part is a screw, the screw is fitted in the threaded hole by threaded fitting, and the end with the threaded side thereof presses the rod body.

4. A label positioning mechanism for a sewing machine according to claim 2, characterized in that: The mounting hole is a through hole, and the shaft-type fixing member is a pin. The pin is fitted in the through hole in an interference fit manner and the rod body is pressed by its end.

5. The label positioning mechanism for a sewing machine according to claim 1, characterized in that: The outer surfaces of both ends of the rod body in the length direction are provided with external thread sections, and the rod body is provided with internal thread sections at the penetration position of the pressing end. The rod body is connected in the pressing end through the cooperation between the external thread sections and the internal thread sections.

6. The label positioning mechanism for a sewing machine according to claim 1, characterized in that: The pressing block is formed in a semi-enclosed manner at one end of the rod body in the length direction, and the end surface of the pressing block away from the rod body is a plane.

7. The label positioning mechanism for a sewing machine according to claim 1, characterized in that: The pressing block is formed in a surrounding manner at one end of the rod body in the length direction, and the cross section of the pressing block is rectangular or circular.

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