Bobbin mounting bracket suitable for doubling low-torque yarns
By installing a pull shaft inside the elastic inner clamp of the yarn doubling machine, the wear problem caused by friction during the loading and unloading of the yarn spool is solved, thus protecting the inner wall of the yarn spool and improving the quality of the yarn.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-02
- Publication Date
- 2026-04-21
AI Technical Summary
The existing elastic inner clamping structure of the doubling machine has a large friction when putting on and taking off the bobbin, which leads to severe wear on the inner wall of the bobbin and affects the quality of the yarn.
By installing a pull shaft inside the elastic inner clamp, the elastic inner clamp is deformed by the pull shaft, so that there is no contact between the spool and the elastic inner clamp during loading and unloading, and the pull shaft is used to improve the support strength of the clamp.
It effectively reduces wear on the inner wall of the bobbin, increases the service life of the bobbin, and improves the quality of the yarn.
Smart Images

Figure CN224147378U_ABST
Abstract
Description
Technical fields:
[0001] This utility model relates to the technical field of doubling machines, and more specifically to a bobbin mounting bracket suitable for doubling low-torque yarns. Background technology:
[0002] Low-torque yarn is a type of yarn produced using a new spinning technology. It features a soft hand feel, evenness, high strength, and low hairiness. When using low-torque yarn to weave garments, a doubling process is required. Doubling improves yarn quality, making it more uniform, increasing strength, and reducing hairiness, thus improving the overall quality of the yarn. Doubling is achieved by combining multiple strands of yarn into one using a doubling machine. Currently, doubling machines typically have a horizontal bottom beam with an elliptical elastic inner clamp. The yarn spool can be fitted onto this elastic inner clamp, and the elastic clamp holds the spool on the horizontal bottom beam. However, this structure has a drawback: when the spool is fitted onto the elastic inner clamp, the clamp needs to deform, resulting in significant friction during the fitting and removal process. Because the elastic inner clamp is made of metal while the spool is made of plastic, the inner surface of the spool experiences severe wear, accelerating its wear and tear over time. Utility model content:
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a bobbin mounting bracket suitable for low-torque yarn doubling. It has a pull shaft inside the elastic inner clamp, which can improve the support strength of the elastic inner clamp. At the same time, driving the pull shaft can cause the elastic inner clamp to deform. The bobbin can be loaded and unloaded without contacting the elastic inner clamp, which can effectively solve the problem of wear on the inner wall of the bobbin.
[0004] A bobbin mounting bracket suitable for low-torque yarn doubling includes a horizontal base beam fixed to the bottom of the doubling machine frame. Several bobbin supports are linearly and evenly distributed on the horizontal base beam. Each bobbin support includes a tray abutting against the horizontal base beam. A connecting sleeve is formed on the lower end face of the tray's center, and the connecting sleeve is connected to the horizontal base beam via a bearing. A vertically shaped, elliptical elastic inner clamp is fixed to the upper end face of the tray's center. A vertical pull shaft is inserted into the elastic inner clamp. A screw is inserted at the top of the elastic inner clamp, and the end of the screw passes through the elastic inner clamp and is screwed to the top of the pull shaft. The bottom end of the pull shaft passes through the elastic inner clamp and the tray, extends out of the horizontal base beam, and is pivotally connected to a T-shaped connector.
[0005] The lower end of the connector is inserted with a longitudinal steel wire rope. The rear end of the steel wire rope is inserted and fixed to the positioning block. The positioning block is fixed to the horizontal bottom beam on the rear side of the pull shaft. The front end of the steel wire rope passes through the guide block and is fixed to a pull ring. The guide block is fixed to the horizontal bottom beam on the front side of the pull shaft.
[0006] Preferably, the lower end of the connector is shaped into a spherical shape, the diameter of the lower end of the connector is larger than the diameter of the pull shaft, and the lower end of the connector is formed with an insertion hole opposite to the steel wire rope, the diameter of the insertion hole being larger than the diameter of the steel wire rope.
[0007] Preferably, the bottom of the elastic inner clip is formed with an opening opposite to the pull shaft, the diameter of the opening being larger than the diameter of the pull shaft. The bottom of the elastic inner clip is fixedly connected to the tray by welding, and the top is clamped and fixed to the screw and the pull shaft.
[0008] Preferably, the top end of the pull shaft is an arc surface, and the surface of the top end of the pull shaft overlaps with the inner surface of the elastic inner clip.
[0009] Preferably, the width of the elastic inner clip is greater than the diameter of the pull shaft.
[0010] Preferably, the diameter of the tray is smaller than the distance between adjacent pull shafts on the bottom beam.
[0011] Preferably, the lower end surface of the tray is formed with a plurality of anti-slip concave surfaces, and the lower end of the tray abuts against the upper end surface of the cross bottom beam.
[0012] The beneficial effects of this utility model are as follows:
[0013] This spool mounting bracket has a pull shaft inside the elastic inner clamp. The pull shaft can improve the support strength of the elastic inner clamp, and driving the pull shaft can cause the elastic inner clamp to deform. The spool can be loaded and unloaded without contacting the elastic inner clamp, which can effectively solve the problem of wear on the inner wall of the spool. Attached image description:
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a front view structural diagram of the present invention;
[0016] Figure 3 This is a side view of the structure of this utility model.
[0017] In the diagram: 1. Horizontal bottom beam; 2. Wire drum bracket; 21. Tray; 22. Pull shaft; 23. Elastic inner clamp; 231. Opening; 24. Screw; 25. Connector; 26. Steel wire rope; 27. Positioning block; 28. Guide block; 29. Pull ring. Detailed implementation method:
[0018] Example: See Figures 1 to 3As shown, a bobbin mounting bracket suitable for low-torque yarn doubling includes a horizontal base beam 1 fixed to the bottom of the doubling machine frame. Several linearly and evenly distributed bobbin supports 2 are arranged on the horizontal base beam 1. Each bobbin support 2 includes a tray 21 abutting against the horizontal base beam 1. A connecting bushing is formed on the lower end face of the middle portion of the tray 21, and the connecting bushing is connected to the horizontal base beam 1 via a bearing. A vertically oriented, elliptical elastic inner clamp 23 is fixed to the upper end face of the middle portion of the tray 21. A vertical pull shaft 22 is inserted into the elastic inner clamp 23. A screw 24 is inserted into the top end of the elastic inner clamp 23, and the end of the screw 24 passes through the elastic inner clamp 23 and is screwed to the top end of the pull shaft 22. The bottom end of the pull shaft 22 passes through the elastic inner clamp 23 and the tray 21 and extends out of the horizontal base beam 1, pivotally connected to a T-shaped connector 25.
[0019] A longitudinal steel wire rope 26 is inserted into the lower end of the connector 25. The rear end of the steel wire rope 26 is inserted into and fixed on the positioning block 27. The positioning block 27 is fixed on the horizontal bottom beam 1 on the rear side of the pull shaft 22. The front end of the steel wire rope 26 passes through the guide block 28 and is fixed to the pull ring 29. The guide block 28 is fixed on the horizontal bottom beam 1 on the front side of the pull shaft 22.
[0020] The lower end of the connector 25 is shaped into a spherical shape, and the diameter of the lower end of the connector 25 is larger than the diameter of the pull shaft 22. The lower end of the connector 25 is also shaped with an insertion hole opposite to the wire rope 26. The diameter of the insertion hole is larger than the diameter of the wire rope 26, so that the wire rope 26 will not come into contact with the pull shaft 22, and the problem of the wire rope 26 getting tangled is less likely to occur.
[0021] The bottom of the elastic inner clamp 23 is formed with an opening 231 opposite to the pull shaft 22. The diameter of the opening 231 is larger than the diameter of the pull shaft 22. The bottom of the elastic inner clamp 23 is fixedly connected to the tray 21 by welding, and the top is clamped and fixed to the screw 24 and the pull shaft 22. The pull shaft 22 is used to improve the support strength of the elastic inner clamp 23.
[0022] The top end of the pull shaft 22 is arc-shaped, and the surface of the top end of the pull shaft 22 overlaps with the inner surface of the elastic inner clamp 23, which facilitates the mating connection between the pull shaft 22 and the elastic inner clamp 23.
[0023] The width of the elastic inner clip 23 is greater than the diameter of the pull shaft 22; otherwise, the opening 231 will affect the overall shape of the elastic inner clip 23.
[0024] The diameter of the tray 21 is smaller than the distance between adjacent pull shafts 22 on the bottom beam 1, so there will be no interference between adjacent trays 21.
[0025] The lower end surface of the tray 21 is formed with several anti-slip concave surfaces. The lower end of the tray 21 abuts against the upper end surface of the horizontal bottom beam 1. The anti-slip concave surfaces can provide resistance to the rotation of the tray 21 and prevent the loaded bobbins from automatically unwinding due to inertia.
[0026] Working principle: This structure is a spool mounting bracket, and the structure of the spool mounting bracket is as follows: Figure 1 , 2 As shown in Figure 3, a pull shaft 22 is installed inside the elastic inner clamp 23. The pull shaft 22 restricts the horizontal swaying of the elastic inner clamp 23 and improves the support strength of the elastic inner clamp 23.
[0027] Meanwhile, the pull shaft 22 can move up and down, causing the elastic inner clamp 23 to deform. For example, by pulling the pull ring 29, the steel wire rope 26 is pulled out, and the steel wire rope 26 will drive the pull shaft 22 to move upward. Then, the upper end of the pull shaft 22 pushes against the elastic inner clamp 23, so that the two sides of the elastic inner clamp 23 are gathered and stretched, and the spool can be put on the elastic inner clamp 23. Then, the pull ring 29 is released, and the elastic inner clamp 23 elastically resets to clamp the spool. The spool is removed in the same way. The operation is convenient and the problem of wear on the inner wall of the spool is also solved.
[0028] The embodiments described herein are illustrative and not intended to limit the scope of the invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the invention; therefore, the scope of protection of the invention should be as set forth in the claims.
Claims
1. A bobbin mounting support suitable for use in low torque yarn doubling, comprising a cross bottom beam (1) fixed to the bottom of the frame of a doubling machine, a plurality of bobbin supports (2) being arranged on the cross bottom beam (1) in a linear and uniform distribution, characterized in that: The spool support (2) includes a tray (21) abutting against a horizontal bottom beam (1). A connecting bushing is formed on the lower end face of the middle part of the tray (21). The connecting bushing is connected to the horizontal bottom beam (1) through a bearing. A vertical and elliptical elastic inner clip (23) is fixed to the upper end face of the middle part of the tray (21). A vertical pull shaft (22) is inserted into the elastic inner clip (23). A screw (24) is inserted into the top of the elastic inner clip (23). The end of the screw (24) passes through the elastic inner clip (23) and is screwed to the top of the pull shaft (22). The bottom end of the pull shaft (22) passes through the elastic inner clip (23) and the tray (21) and extends out of the horizontal bottom beam (1) and is pivotally connected to a T-shaped connector (25). A longitudinal steel wire rope (26) is inserted into the lower end of the connector (25). The rear end of the steel wire rope (26) is inserted and fixed on the positioning block (27). The positioning block (27) is fixed on the horizontal bottom beam (1) on the rear side of the pull shaft (22). The front end of the steel wire rope (26) passes through the guide block (28) and is fixed with a pull ring (29). The guide block (28) is fixed on the horizontal bottom beam (1) on the front side of the pull shaft (22).
2. A bobbin mounting bracket suitable for use in low torque doubling of yarn according to claim 1, characterized in that: The lower end of the connector (25) is shaped into a spherical shape. The diameter of the lower end of the connector (25) is larger than the diameter of the pull shaft (22). The lower end of the connector (25) is shaped into an insertion hole opposite to the wire rope (26). The diameter of the insertion hole is larger than the diameter of the wire rope (26).
3. A bobbin mounting bracket for low-torque yarn doubling according to claim 2, characterized in that: The bottom of the elastic inner clip (23) is formed with an opening (231) opposite to the pull shaft (22). The diameter of the opening (231) is larger than the diameter of the pull shaft (22). The bottom of the elastic inner clip (23) is fixedly connected to the tray (21) by welding, and the top is clamped and fixed to the screw (24) and the pull shaft (22).
4. A bobbin mounting bracket suitable for use in low torque doubling of yarn according to claim 3, characterized in that: The top end of the pull shaft (22) is an arc surface, and the surface of the top end of the pull shaft (22) overlaps with the inner surface of the elastic inner clip (23).
5. A bobbin mounting bracket suitable for use in low torque doubling of yarn according to claim 3, wherein: The width of the elastic inner clip (23) is greater than the diameter of the pull shaft (22).
6. A bobbin mounting bracket suitable for use in low torque doubling of yarn according to claim 1, characterized in that: The diameter of the tray (21) is smaller than the distance between adjacent pull shafts (22) on the bottom beam (1).
7. A bobbin mounting bracket suitable for use in low torque doubling of yarn according to claim 1, wherein: The lower end of the tray (21) is formed with several anti-slip concave surfaces, and the lower end of the tray (21) abuts against the upper end of the horizontal bottom beam (1).