Winding jig for polytetrafluoroethylene sewing thread production
By using the magnetic connection between the support component and the limiting component, the problem of inconvenient replacement of the thread spool in the production of PTFE sewing thread is solved, enabling rapid positioning and release of the thread spool and improving the efficiency of winding production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-14
AI Technical Summary
In the current production and winding of polytetrafluoroethylene sewing thread, the replacement of the spool is inconvenient and inefficient, and the operation is cumbersome due to the need to rotate the nut for disassembly and assembly.
By employing support and limiting components, combined with magnetic connection, the spool can be quickly positioned and depositioned. The magnetic connection with the stainless steel rotating rod simplifies the spool replacement process.
It improves the efficiency of bobbin replacement and the applicability of winding, simplifies bobbin replacement operations, and increases the efficiency of winding production.
Smart Images

Figure CN224118507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polytetrafluoroethylene sewing thread production technology, specifically to a winding fixture for the production of polytetrafluoroethylene sewing thread. Background Technology
[0002] Polytetrafluoroethylene (PTFE) sewing thread is widely used in many fields due to its excellent heat resistance, corrosion resistance, non-stick properties, and high strength. In filter manufacturing, it is used to sew high-temperature and corrosion-resistant filter media; in the medical field, it is used as surgical sutures to reduce the risk of postoperative infection; and in the aerospace field, it is also used in the production of high-end protective clothing such as spacesuits.
[0003] In the existing production and winding process of polytetrafluoroethylene sewing thread, the end of the thread spool needs to be limited after the thread spool is threaded onto the rotating rod of the support spool with a nut. This means that the nut needs to be rotated off and reinstalled every time the spool is replaced, which causes inconvenience and inefficiency in spool replacement. Therefore, a winding fixture for the production of polytetrafluoroethylene sewing thread is proposed. Utility Model Content
[0004] To address the problems in the existing technology, this utility model provides a winding fixture for the production of polytetrafluoroethylene (PTFE) sewing thread. This fixture positions the spool for winding and can position different lengths depending on the spool's length, greatly increasing the applicability of the winding process. Magnetic attraction makes positioning and unpositioning the spool more convenient, improving the efficiency of changing the spool after each winding cycle.
[0005] The technical solution adopted by this utility model to solve its technical problem is a winding fixture for the production of polytetrafluoroethylene sewing thread, including a support component and a limiting component, wherein the limiting component is disposed on the support component;
[0006] The support assembly includes a stainless steel rotating rod, a baffle plate, a bearing, and a transmission wheel. One end of the stainless steel rotating rod has a positioning hole, and the baffle plate is located on the end of the stainless steel rotating rod away from the positioning hole, and the baffle plate is integrally connected to the stainless steel rotating rod.
[0007] By adopting the above technical solution, a winding fixture is provided for the production of polytetrafluoroethylene sewing thread through a component consisting of a support component and a limiting component. This fixture positions the spool for winding and can position different lengths according to the length of the spool, greatly increasing the applicability of winding.
[0008] Specifically, the bearing and the transmission wheel are sequentially arranged on one side of the baffle, and the inner bushing of the bearing and the center of the transmission wheel are both connected to the stainless steel rotating rod through key pins;
[0009] A flange is provided on the outer bushing of the bearing.
[0010] By adopting the above technical solution, the stainless steel rotating rod can be rotatably installed with the winding machine through the bearing with flange, and the transmission wheel can be connected to the transmission belt of the winding machine, thereby providing rotational force to the stainless steel rotating rod.
[0011] Specifically, the limiting component includes a pressure sleeve and a plug-in component, the pressure sleeve is disposed on the plug-in component, and the inner circumferential surface of the pressure sleeve is provided with an internal thread.
[0012] By adopting the above technical solution and setting the plug-in component, the end of the spool sleeved on the stainless steel rotating rod can be limited, so that the spool is stably placed on the stainless steel rotating rod.
[0013] Specifically, the plug-in assembly includes a threaded head corresponding to the internal thread, one end of the threaded head is connected to a plug corresponding to the positioning hole, and the end of the plug away from the threaded head is provided with a magnet for magnetic connection with the stainless steel rotating rod.
[0014] Specifically, the plug-in assembly is plugged into the positioning socket via a plug connector and magnetically connected to the stainless steel rotating rod via a magnet.
[0015] By adopting the above technical solution and using magnets, the limiting component and the stainless steel rotating rod can be quickly magnetically assembled.
[0016] The beneficial effects of this utility model are as follows: The assembly composed of a support component and a limiting component provides a winding fixture for the production of polytetrafluoroethylene (PTFE) sewing thread, which positions the spool for winding. It can also position the spool at different lengths depending on its length, greatly increasing the applicability of winding. The magnetic attraction makes positioning and releasing the spool more convenient, improving the efficiency of spool replacement after each winding. This solves the problem in existing PTFE sewing thread production where a nut is needed to thread the rotating rod supporting the spool before limiting the end of the spool, resulting in the need to rotate and remove the nut for each spool replacement, causing inconvenience and inefficiency. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 A schematic diagram showing the sleeve of the stainless steel rotating rod in this utility model on the spool;
[0019] Figure 2 This is an exploded view of the present invention;
[0020] Figure 3 This is a schematic diagram of the support component of this utility model;
[0021] Figure 4 This is a schematic diagram of the limiting component of this utility model;
[0022] Figure 5 This is a schematic diagram of the plug-in assembly of this utility model;
[0023] In the figure: support component 1, stainless steel rotating rod 11, baffle 12, positioning socket 13, bearing 14, transmission wheel 15, limit component 2, pressure sleeve 21, internal thread 211, plug-in component 22, threaded head 221, plug connector 222, magnet 223. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] like Figure 1-5 As shown, the present invention provides a winding fixture for the production of polytetrafluoroethylene sewing thread, comprising a support component 1 and a limiting component 2, wherein the limiting component 2 is disposed on the support component 1.
[0026] The support assembly 1 includes a stainless steel rotating rod 11, a baffle 12, a bearing 14, and a transmission wheel 15. One end of the stainless steel rotating rod 11 is provided with a positioning hole 13. The baffle 12 is located on the stainless steel rotating rod 11 at the end away from the positioning hole 13, and the baffle 12 is integrally connected to the stainless steel rotating rod 11.
[0027] In use, the support component 1 and the limiting component 2 provide a winding fixture for the production of polytetrafluoroethylene sewing thread, so as to position the spool for winding, and to position it at different lengths according to the different lengths of the spool, which greatly increases the applicability of winding.
[0028] The present invention also includes that the bearing 14 and the transmission wheel 15 are sequentially arranged on one side of the baffle 12, and the inner bushing of the bearing 14 and the center of the transmission wheel 15 are both connected to the stainless steel rotating rod 11 by key pins.
[0029] A flange is provided on the outer bushing of the bearing 14.
[0030] In use, the stainless steel rotating rod 11 is rotatably mounted to the winding machine by means of the bearing 14 with flange. The transmission wheel 15 is provided so that the transmission belt of the winding machine can be connected to the transmission wheel 15, thereby providing rotational force to the stainless steel rotating rod 11.
[0031] The present invention also includes that the limiting component 2 includes a pressure sleeve 21 and a plug-in component 22, the pressure sleeve 21 is disposed on the plug-in component 22, and the inner circumferential surface of the pressure sleeve 21 is provided with an internal thread 211.
[0032] In use, the plug-in component 22 can be used to limit the end of the spool sleeved on the stainless steel rotating rod 11, so that the spool is stably placed on the stainless steel rotating rod 11.
[0033] The present invention also includes that the plug-in assembly 22 includes a threaded head 221 corresponding to the internal thread 211, one end of the threaded head 221 is connected to a plug connector 222 corresponding to the positioning plug hole 13, and the end of the plug connector 222 away from the threaded head 221 is provided with a magnet 223 for magnetic connection with the stainless steel rotating rod 11.
[0034] The present invention also includes that the plug-in assembly 22 is plugged into the positioning socket 13 through the plug connector 222 and magnetically connected to the stainless steel rotating rod 11 through the magnet 223.
[0035] In use, the setting of magnet 223 enables the limit component 2 and the stainless steel rotating rod 11 to be quickly magnetically assembled.
[0036] In use, this invention assembles the stainless steel rotating rod 11 onto the winding machine via a bearing 14 with a flange, and places the winding machine's drive belt onto the drive pulley 15, enabling the winding machine to drive the stainless steel rotating rod 11 to rotate. During winding, the operator places the spool of wire to be wound onto the stainless steel rotating rod 11, and then uses the connector 222 to insert the limiting component 2 onto the end of the stainless steel rotating rod 11. The pressure sleeve 21 of the limiting component 2 limits the end of the spool, clamping the spool tightly within the pressure sleeve 21. Between the baffle 12, the operator then inserts the sewing thread end into the winding machine and fastens it to the spool placed on the stainless steel rotating rod 11, forming a preliminary fixation of the thread end. The winding machine then drives the transmission wheel 15 of the stainless steel rotating rod 11 to rotate, causing the spool to rotate and thus winding the sewing thread. When it is necessary to remove the wound spool, the operator simply pulls the limiting component 2 out of the end of the stainless steel rotating rod 11, so that the two lose their magnetic connection. This allows for quick replacement of the spool required for the next winding, making it flexible and convenient to use.
[0037] When dealing with spools of different lengths, the operator rotates the pressure sleeve 21 and uses the threaded connection between the internal thread 211 and the threaded head 221 of the pressure sleeve 21 to adjust the threaded position of the pressure sleeve 21 on the connector 222. This is done to meet the needs of spools of different lengths. The direction of thread movement of the internal thread 211 and the threaded head 221 is opposite to the driving direction of the winding machine, ensuring the stability of the pressure sleeve 21 in pressing the spool during the rotation of the stainless steel rotating rod 11.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A winding fixture for the production of polytetrafluoroethylene sewing thread, characterized in that, It includes a support component (1) and a limiting component (2), wherein the limiting component (2) is disposed on the support component (1); The support assembly (1) includes a stainless steel rotating rod (11), a baffle (12), a bearing (14), and a transmission wheel (15). One end of the stainless steel rotating rod (11) is provided with a positioning hole (13). The baffle (12) is located on the end of the stainless steel rotating rod (11) away from the positioning hole (13), and the baffle (12) is integrally connected with the stainless steel rotating rod (11).
2. A winding fixture for producing polytetrafluoroethylene sewing thread according to claim 1, characterized in that, The bearing (14) and the transmission wheel (15) are arranged sequentially on one side of the baffle (12), and the inner bushing of the bearing (14) and the center of the transmission wheel (15) are connected to the stainless steel rotating rod (11) by key pins. The outer bushing of the bearing (14) is provided with a flange.
3. A winding fixture for producing polytetrafluoroethylene sewing thread according to claim 2, characterized in that, The limiting component (2) includes a pressure sleeve (21) and a plug-in component (22). The pressure sleeve (21) is disposed on the plug-in component (22), and the inner circumferential surface of the pressure sleeve (21) is provided with an internal thread (211).
4. A winding fixture for producing polytetrafluoroethylene sewing thread according to claim 3, characterized in that, The plug assembly (22) includes a threaded head (221) corresponding to the internal thread (211), one end of which is connected to a plug (222) corresponding to the positioning hole (13), and the end of the plug (222) away from the threaded head (221) is provided with a magnet (223) for magnetic connection with the stainless steel rotating rod (11).
5. A winding fixture for producing polytetrafluoroethylene sewing thread according to claim 4, characterized in that, The plug-in assembly (22) is plugged into the positioning socket (13) via the plug connector (222) and magnetically connected to the stainless steel rotating rod (11) via the magnet (223).