A strip clamping assembly for a sewing machine

Abstract

A tape clamping assembly for a sewing machine, comprising a clamping piece assembly and an adjusting assembly, the clamping piece assembly comprising a mounting base, a screw rod, an adjusting nut, a clamping piece and an adjusting spring, the adjusting assembly comprising an adjusting pressure piece, a movable slot and a stopper, the adjusting pressure piece being sleeved on the outside of the screw rod and located between the clamping piece and the adjusting spring, the stopper abutting against the clamping piece, and the screw rod being inserted into the movable slot. The tape clamping assembly for a sewing machine provided by the present application clamps the tape by the clamping piece, and an adjusting spring is arranged at one end of the clamping piece, the adjusting spring abutting against the clamping piece to press the tape between the clamping piece and the mounting base, so that the tape is clamped, thereby facilitating the operator to straighten the clamped tape.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of sewing machines, in particular to a belt material clamping assembly for a sewing machine. BACKGROUND

[0002] A sewing machine is a tool for sewing cloth, which can sew most materials. When sewing some light and thin cloth, a belt material is usually added to the sewing position to avoid wrinkles and make the product more beautiful. Nowadays, the belt material is directly placed under the sewing head, and the operator needs to constantly straighten the part to be sewn with both hands during the sewing process, then sews the straightened part, and manually feeds the belt material after sewing. This operation is very time-consuming and the sewing efficiency is very low. SUMMARY

[0003] Therefore, the present application provides a belt material clamping assembly for a sewing machine to solve the above problems.

[0004] A belt material clamping assembly for a sewing machine includes a clamping assembly for clamping the belt material, and an adjusting assembly for adjusting the clamping degree of the clamping assembly. The clamping assembly includes a mounting seat, a screw rod inserted into the mounting seat, an adjusting nut sleeved on the screw rod, a clamping piece sleeved on the screw rod and abutting against the mounting seat, and an adjusting spring sleeved on the screw rod and having two ends respectively abutting against the clamping piece and the adjusting nut. The adjusting assembly includes an adjusting pressure piece sleeved on the screw rod, a movable groove opened in the adjusting pressure piece, and an abutting portion provided at one end of the adjusting pressure piece. The adjusting pressure piece is sleeved on the outside of the screw rod and located between the clamping piece and the adjusting spring. The abutting portion abuts against the clamping piece, and the screw rod is inserted into the movable groove. When the adjusting pressure piece moves, the position of the abutting portion abutting against the clamping piece changes to change the clamping degree of the clamping piece on the belt material.

[0005] Further, the adjusting assembly further includes a positioning assembly provided between the adjusting pressure piece and the mounting seat, the positioning assembly is provided on both sides of the adjusting pressure piece with the abutting portion, the positioning assembly includes a plurality of positioning holes arranged along the extension direction of the adjusting pressure piece, and a pin rod provided between the mounting seat and the adjusting pressure piece, the pin rod is inserted into one of the positioning holes to cooperate with the screw rod to position the adjusting assembly.

[0006] Further, the top of the mounting seat is provided with a pad, and the pad is located between the clamping piece and the mounting seat

[0007] Further, the top of the base plate is provided with two limiting parts, which are arranged at intervals and on both sides of the adjusting pressing plate respectively, so as to limit the movement of the adjusting pressing plate in the horizontal direction

[0008] Further, the width of the abutting part is the same as that of the adjusting pressing plate, and the width of the clamping piece is the same as that of the abutting part.

[0009] Further, a pin seat is arranged between the pin rod and the mounting seat, and the height of the pin seat is the same as that of the abutting part, so as to horizontally arrange the adjusting pressing plate.

[0010] Further, a pressing ring is arranged between the adjusting spring and the adjusting pressing plate, the pressing ring is sleeved on the outside of the screw rod, and the pressing ring is welded with the adjusting spring.

[0011] Compared with the prior art, the belt clamping assembly for the sewing machine provided by the application is characterized in that: a clamping piece is arranged, an adjusting spring is arranged at one end of the clamping piece, the clamping piece is abutted by the adjusting spring, the belt is pressed between the clamping piece and the mounting seat, the clamping of the belt is realized, the operator can straighten the clamped belt, and the belt is pulled out by applying additional force to realize feeding, the adjusting spring is sleeved on the outside of a screw rod, an adjusting nut is sleeved on the outside of the screw rod, and one end of the adjusting spring abuts against the adjusting nut, the spacing between the adjusting nut and the mounting seat is adjusted, the deformation degree of the adjusting spring is changed, the clamping tightness of the clamping piece is changed, and the adjusting assembly can change the clamping degree of the clamping piece. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The structure diagram of the belt clamping assembly for the sewing machine provided by the application is shown.

[0013] Figure 2 The front view of the belt clamping assembly for the sewing machine is shown. Figure 1 DETAILED DESCRIPTION

[0014] The specific embodiments of the application are further described below. It should be understood that the description of the embodiments of the application herein is not used to limit the protection scope of the application.

[0015] As Figure 1 and Figure 2 ​As shown in the structure diagram of the strip clamping assembly for sewing machine provided by the present application. The strip clamping assembly for sewing machine comprises a clamping assembly 10, and an adjusting assembly 20 arranged on one side of the clamping assembly 10 and used for adjusting the clamping degree of the clamping assembly 10. Some other functional modules are also included, such as bolts arranged on the clamping assembly 10 and used for fixing the clamping assembly 10 on the sewing machine, etc. which should be the technology known by the skilled in the art and will not be described in detail here.

[0016] The clamping assembly 10 comprises a mounting base 11, a screw rod 12 inserted into the mounting base 11, an adjusting nut 13 sleeved on the screw rod 12, a clamping piece 14 sleeved on the screw rod 12, a pad plate 16 sleeved on the screw rod 12 and located between the clamping piece 14 and the mounting base 11, and an adjusting spring 15 sleeved on the screw rod 12 and abutting against the adjusting nut 13 and the clamping piece 14 at both ends. The adjusting nut 13 can adjust the compression degree of the adjusting spring 15 after being rotated, so as to change the clamping tightness of the clamping assembly 10. The clamping piece 14 is pushed by the adjusting spring 15 and abuts against the pad plate 16, and the clamping piece 14 and the pad plate 16 cooperate to form a clamping part. In use, the strip is clamped between the clamping piece 14 and the pad plate 16, so as to realize the fixation of the strip. The top of the pad plate 16 is provided with two limiting parts 161 arranged on both sides of the clamping piece 14, so as to limit the movement of the clamping piece 14 in the horizontal direction. In this embodiment, one end of the adjusting spring 15 is welded with the adjusting nut 13, and the other end is welded with the pressing ring 17. The pressing ring 17 makes the one end of the adjusting spring 15 stably abut against the adjusting pressing piece 21, so as to ensure the stability of clamping.

[0017] The adjusting assembly 20 comprises an adjusting pressing piece 21 sleeved on the screw rod, a positioning assembly 22 arranged between the adjusting pressing piece 21 and the mounting base 11, and an abutting part 23 arranged at the bottom of the adjusting pressing piece 21 and abutting against the clamping piece 14. The adjusting pressing piece 21 is in the shape of a long strip, and a strip-shaped through groove 211 is formed on the adjusting pressing piece 21 along the length direction of the adjusting pressing piece 21. The adjusting pressing piece 21 moves in the linear direction, so that the position of the screw rod 12 in the through groove 211 changes, and then the abutting point of the abutting part 23 and the clamping piece 14 changes. The width of the abutting part 23 is the same as the width of the adjusting pressing piece 21, and the width of the clamping piece 14 is the same as the width of the abutting part 23.

[0018] The positioning assembly 22 comprises a plurality of positioning holes 221 arranged along the length direction of the adjusting plate 21, a pin 222 arranged at the top of the mounting base 11 and inserted into one of the positioning holes 221, and a pin seat 223 arranged between the pin 222 and the mounting base 11. When the adjusting plate 21 is moved, the pin 222 is selectively inserted into one of the positioning holes 221 to position the adjusting plate 21. The height of the pin seat 223 is the same as the height of the abutting portion 23, so that when the two ends of the adjusting plate 21 abut against the clamping piece 14 and the pin seat 223 respectively, the adjusting plate 21 is in a horizontal state, thereby ensuring that the force applied by the adjusting spring 15 to the adjusting plate 21 is stable in direction.

[0019] In use, the belt material is clamped between the clamping piece 14 and the backing plate 16, and the adjusting spring 15 pushes the clamping piece 14, so that the clamping piece 14 clamps the belt material. In order to ensure that the belt material is taut, the operator only needs to hold the middle part of the belt material with one hand and move it towards himself. Since one end of the belt material is clamped by the clamping piece 14 and the backing plate 16, and the other end is pressed by the other hand, the belt material will be in a taut state. After sewing is completed, the operator uses more force to pull the belt material out of the clamping piece 14 and the backing plate 16 and adjusts the positions of the two hands on the belt material respectively, so that continuous feeding can be realized, thereby facilitating sewing. The clamping degree of the clamping piece 14 is adjusted by adjusting the adjusting nut 13 and the positioning assembly 22.

[0020] Rotating the adjusting nut 13 can realize the movement of the adjusting nut 13 on the screw rod 12. The closer the adjusting nut 13 is to the mounting base 11, the greater the clamping degree between the clamping plate 14 and the backing plate 16.

[0021] Changing the position of the adjusting plate 21 can change the position of the abutting portion 23 on the adjusting plate 21 abutting against the clamping piece 14. When the abutting point of the abutting portion 23 and the clamping piece 14 is away from the mounting position of the clamping piece 14 and the screw rod 12, the clamping degree between the clamping plate 14 and the backing plate 16 is greater. When the adjusting plate 21 is moved, the adjusting plate 21 needs to be lifted first, so that the pin 222 is separated from the positioning hole 221, then the adjusting plate 21 is moved to the appropriate position, and finally the adjusting plate 21 is released and the pin 222 is inserted into the corresponding positioning hole 221.

[0022] Compared with the prior art, the strip clamping assembly for the sewing machine provided by the present application is characterized in that a clamping piece 14 is arranged on the mounting base 11, and an adjusting spring 15 is arranged at one end of the clamping piece 14 and abuts against the clamping piece 14, so that the strip is pressed between the clamping piece 14 and the mounting base 11, the clamping of the strip is realized, the operator can straighten the clamped strip, and the strip is pulled out by applying an additional force to realize the feeding of the strip; the adjusting spring 15 is sleeved on the outside of a screw rod 12, an adjusting nut 13 is sleeved on the outside of the screw rod 12, and one end of the adjusting spring 15 abuts against the adjusting nut 13; the spacing between the adjusting nut 13 and the mounting base 11 is adjusted, so that the deformation degree of the adjusting spring 15 is changed, and then the clamping tightness of the clamping piece 14 is changed; and the adjusting assembly 20 can change the clamping degree of the clamping piece 14.

[0023] The above is only the preferred embodiment of the present application, and is not used to limit the protection scope of the present application, any modification, equivalent replacement or improvement within the spirit of the present application is covered in the claim scope of the present application.

Claims

1. A tape clamping assembly for a sewing machine, characterized by: The strip clamping assembly for sewing machine comprises a clamping piece assembly for clamping the strip and an adjusting assembly for adjusting the clamping degree of the clamping piece assembly, the clamping piece assembly comprises a mounting base, a screw rod inserted into the mounting base, an adjusting nut sleeved on the screw rod, a clamping piece sleeved on the screw rod and abutting against the mounting base, and an adjusting spring sleeved on the screw rod and abutting against the clamping piece and the adjusting nut at both ends, the adjusting assembly comprises an adjusting press piece sleeved on the screw rod, a movable slot formed in the adjusting press piece, and an abutting part arranged at one end of the adjusting press piece, the adjusting press piece is sleeved on the outside of the screw rod and located between the clamping piece and the adjusting spring, the abutting part abuts against the clamping piece, the screw rod is inserted into the movable slot, when the adjusting press piece moves, the position of the abutting part abutting against the clamping piece changes, so as to change the clamping degree of the clamping piece to the strip, the adjusting assembly further comprises a positioning assembly arranged between the adjusting press piece and the mounting base, the positioning assembly is arranged on both sides of the adjusting press piece with the abutting part, the positioning assembly comprises a plurality of positioning holes arranged along the extension direction of the adjusting press piece, and a pin rod arranged between the mounting base and the adjusting press piece, the pin rod is inserted into one of the positioning holes to cooperate with the screw rod to position the adjusting assembly, a pin seat is arranged between the pin rod and the mounting base, the height of the pin seat is the same as the height of the abutting part, so that when the both ends of the adjusting press piece abut against the clamping piece and the pin seat respectively, the adjusting press piece is in a horizontal state, so as to ensure that the force direction of the adjusting spring to the adjusting press piece is stable.

2. The strip clamping assembly for a sewing machine according to claim 1, characterized in that: The top of the mounting base is provided with a pad plate, and the pad plate is located between the clamping piece and the mounting base.

3. The strip clamping assembly for a sewing machine according to claim 2, characterized in that: The top of the pad plate is provided with two limiting parts, the limiting parts are arranged at intervals and are arranged on both sides of the clamping piece respectively, so as to limit the movement of the clamping piece in the horizontal direction.

4. The tape clamping assembly for a sewing machine according to claim 2, wherein: The width of the abutting part is the same as the width of the adjusting press piece, and the width of the clamping piece is the same as the width of the abutting part.

5. The strip clamping assembly for a sewing machine according to claim 1, characterized in that: A pressing ring is arranged between the adjusting spring and the adjusting press piece, the pressing ring is slidably sleeved on the outside of the screw rod, and the pressing ring is welded with the adjusting spring.

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