Self-speed-regulation type integrated shuttle

Abstract

The utility model discloses a self-speed-regulating type integrated shuttle, which is characterized in that a shuttle shell is in the shape of a cylinder with one open end and comprises a bottom plate and a peripheral wall, and a hollow shaft is integrally formed on the bottom plate; the shuttle peg comprises a cylinder part and flange parts located on the two sides of the cylinder part, the shuttle peg is inserted into the hollow shaft through the cylinder part and rotationally installed in the shuttle shell, a first touch pressing part and a second touch pressing part are arranged on the shuttle shell, the first touch pressing part generates first resistance for preventing the shuttle peg from rotating by touching and pressing the shuttle peg, and the second touch pressing part generates second resistance for preventing the shuttle peg from rotating by touching and pressing the shuttle peg. The second touch pressing part generates second resistance for preventing the shuttle peg from rotating by touching and pressing the bottom line on the shuttle peg, and the second resistance is reduced along with the reduction of the bottom line on the shuttle peg. The utility model provides the self-speed-regulating integrated shuttle which can automatically regulate the resistance for blocking the rotation of the shuttle peg so as to achieve a relatively stable wire outlet speed.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing auxiliary equipment, and particularly relates to a self-speed-regulating integrated bobbin. Background Art

[0002] For the existing bobbin core and bobbin case, disassembly and assembly are required to wind the thread. Therefore, an integrated bobbin for an embroidery machine with the application number CN202323166489.3 appears. The bobbin core and the bobbin case can realize the replacement and use of the bobbin thread without being separated. In order to make the integrated bobbin have a relatively stable thread tension when the thread comes out and the bobbin core will not continue to rotate and unwind due to inertia when the embroidery machine stops leading the thread, an elastic bobbin skin that contacts the bobbin core and provides frictional resistance to it is arranged on the peripheral wall of the bobbin case. However, the frictional resistance of this structure to the bobbin core is constant. When there is more bobbin thread, the diameter is larger, and the pulling force required to rotate the bobbin core is smaller. As the diameter of the bobbin thread decreases during use, the pulling force required to rotate the bobbin core becomes larger. However, the existing pulling force for the bobbin thread is constant. This results in the bobbin thread coming out relatively loose at the beginning, and becoming tighter and tighter as the bobbin thread decreases, causing an imbalance in the tightness of the thread coming out and affecting the knitting quality. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a self-speed-regulating integrated bobbin, which can automatically adjust the resistance to hinder the rotation of the bobbin core and achieve a relatively stable thread outlet speed, and can solve the deficiencies of the existing technology.

[0004] The technical solution of the utility model is: a self-speed-regulating integrated bobbin, the bobbin case is in the shape of a cylinder with one end open, including a bottom plate and a peripheral wall, and a hollow shaft is integrally formed on the bottom plate; a bobbin core, including a cylindrical part and flange parts located on both sides of the cylindrical part, the bobbin core is rotationally installed in the bobbin case by inserting the cylindrical part into the hollow shaft. The bobbin case is provided with a first pressing part and a second pressing part. The first pressing part generates a first resistance to hinder the rotation of the bobbin core by pressing the bobbin core, and the second pressing part generates a second resistance to hinder the rotation of the bobbin core by pressing the bobbin thread on the bobbin core, and the second resistance decreases as the bobbin thread on the bobbin core decreases.

[0005] Further, the end of the second pressing part is upturned.

[0006] Further, the second pressing part blocks the bobbin core to prevent the bobbin core from escaping outwards.

[0007] Further, it includes an elastic bobbin skin arranged on the bobbin case, and the first pressing part and the second pressing part are both located on the bobbin skin.

[0008] Further, the tightness between the bobbin skin and the bobbin case is adjustable, and the first resistance and the second resistance are adjusted by adjusting the tightness between the bobbin skin and the bobbin case.

[0009] By implementing the present utility model, the bobbin case has a bobbin wound with the bottom thread. The first pressing part generates a first resistance that hinders the rotation of the bobbin by pressing on the bobbin, and the second pressing part generates a second resistance that hinders the rotation of the bobbin by pressing on the bottom thread on the bobbin. The second resistance decreases as the bottom thread on the bobbin decreases, so that the total resistance of the first resistance plus the second resistance decreases as the bottom thread decreases, accelerating the thread payout speed, achieving a balance of the situation where the thread payout is first loose and then tight due to the decrease in the bottom thread diameter, enabling it to have a relatively stable thread payout speed, maintaining the balance of the tightness and looseness of the thread payout, and improving the knitting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the present utility model.

[0011] As shown in the figure: bobbin case 1; peripheral wall 2; bobbin 3; flange portion 4; first pressing part 5; second pressing part 6; bobbin cover 7; fastener 8. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] Embodiments of the present utility model are as follows Figure 1 As shown, a self - speed - adjusting integrated bobbin case, the bobbin case 1 is in a cylindrical shape with one end open, including a bottom plate and a peripheral wall 2, and a hollow shaft is integrally formed on the bottom plate; the bobbin 3 includes a cylindrical portion and flange portions 4 located on both sides of the cylindrical portion. The bobbin 3 is rotationally installed in the bobbin case 1 by inserting the cylindrical portion into the hollow shaft. On the peripheral wall 2 of the bobbin case 1, there are a first pressing part 5, a second pressing part 6, and an opening for the first pressing part 5 and the second pressing part 6 to enter. The first pressing part 5 generates a first resistance that hinders the rotation of the bobbin 3 by pressing on the flange portion 4 of the bobbin 3, and the second pressing part 6 generates a second resistance that hinders the rotation of the bobbin 3 by pressing on the bottom thread on the bobbin 3. The first pressing part 5 and the second pressing part 6 can be separately arranged on two independent components installed on the bobbin case 1, or for the convenience of installation, as in this application, they are both arranged on the elastic bobbin cover 7. The two are distributed with a height difference. Since the bobbin cover 7 has elasticity, as the bottom thread decreases, the diameter gradually decreases, and the pressing degree of the second pressing part 6 on the bottom thread also gradually weakens, so that the second resistance decreases as the bottom thread is used. Of course, since the first pressing part 5 and the second pressing part 6 are both located on the elastic bobbin cover 7, the deformation of the second pressing part 6 will also affect the change in the pressing degree of the first pressing part 5 on the flange portion 4, causing the first resistance to change. However, as long as it is ensured that the total resistance of the first resistance plus the second resistance decreases as the bottom thread decreases, it can achieve a balance of the situation where the thread payout is first loose and then tight due to the decrease in the bottom thread diameter, thereby achieving a relatively stable thread payout speed, maintaining the balance of the tightness and looseness of the thread payout, and improving the knitting quality.

[0013] As a preference, the end of the second pressing part 6 is slightly warped. Since the bobbin core 3 and the bobbin case 1 will not separate when threading the upper thread and the lower thread on the integrated shuttle, the second pressing part 6 will also contact the lower thread when threading the upper thread. By slightly warping the end of the second pressing part 6, it is avoided that the end of the second pressing part 6 makes hard contact with the lower thread when threading the upper thread, thereby causing damage to the lower thread.

[0014] As a preference, the second pressing part 6 is close to the flange part 4 inside the bobbin core 3 to limit the bobbin core 3 and prevent the bobbin core 3 from axially moving and escaping to the open side of the bobbin case 1 away from the bottom plate.

[0015] As a preference, the tightness between the shuttle skin and the shuttle case is adjustable. By adjusting the tightness between the shuttle skin and the shuttle case, the adjustment of the first resistance and the second resistance is realized. The shuttle skin 7 is connected to the peripheral wall 2 of the shuttle case 1 through a fastener 8 such as a bolt. By adjusting the tightness of the fastener 8, the tightness of the first pressing part 5 and the second pressing part 6 in contact with the flange part 4 and the lower thread is adjusted, so as to realize the adjustment of the initial resistance magnitude.

Claims

1. A self-regulating integrated shuttle, wherein the shuttle case is in a cylindrical shape with one end open, comprising a bottom plate and a peripheral wall, and a hollow shaft is integrally formed on the bottom plate; the shuttle core comprises a cylindrical portion and flange portions located on both sides of the cylindrical portion, and the shuttle core is rotatably installed in the shuttle case through the cylindrical portion being inserted on the hollow shaft, and the characteristics are: The bobbin case is provided with a first pressure part and a second pressure part. The first pressure part generates a first resistance to hinder the rotation of the bobbin by pressing the bobbin, and the second pressure part generates a second resistance to hinder the rotation of the bobbin by pressing the bottom line on the bobbin. The second resistance decreases as the bottom line on the bobbin decreases.

2. The self-speed regulating integrated shuttle according to claim 1, characterized in that: The end of the second contacting and pressing portion is tilted upward.

3. The self-speed regulating integrated shuttle according to claim 1, characterized in that: The second contact and pressure portion blocks the bobbin and prevents the bobbin from escaping outward.

4. The self-speed regulating integrated shuttle according to any one of claims 1 to 3, characterized in that: The invention comprises an elastic shuttle skin arranged on the shuttle case, wherein the first contact and pressure part and the second contact and pressure part are both located on the shuttle skin.

5. The self-speed regulating integrated shuttle according to claim 4, characterized in that: The tightness between the shuttle skin and the shuttle case is adjustable, and the first resistance and the second resistance are adjusted by adjusting the tightness between the shuttle skin and the shuttle case.

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