Quick change structure of polytetrafluoroethylene sewing thread production line cylinder

Abstract

The utility model discloses a polytetrafluoroethylene sewing thread production line cylinder quick-change structure which comprises an installation frame, a bearing a and a bearing b and further comprises a fixed cone block and a movable cone set, the bearing a and the bearing b are installed at the two ends of the top of the installation frame respectively, the fixed cone block is arranged at one end in the installation frame, and the movable cone set is arranged at the other end in the installation frame. The tail end of the fixed cone block is fixedly mounted with an inner shaft sleeve of the bearing a through a key pin; the bearing b comprises a bearing body and clamping grooves, and the clamping grooves are formed along the inner wall of an inner shaft sleeve of the bearing body at equal intervals. A set of quick-changing mechanism is provided for the bobbin for winding after the polytetrafluoroethylene sewing thread is produced, so that a worker can quickly disassemble and assemble the bobbin on winding equipment, the operation is convenient and efficient, the winding efficiency of the polytetrafluoroethylene sewing thread production is higher, and the production efficiency is improved. The problems that an existing rotating tool for winding in polytetrafluoroethylene sewing thread production has many disassembly and assembly steps on a bobbin, the bobbin disassembly and replacement efficiency is affected, and the production efficiency of polytetrafluoroethylene sewing threads is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of polytetrafluoroethylene sewing thread production lines, in particular to a polytetrafluoroethylene sewing thread production line drum quick-change structure. Background Art

[0002] PTFE sewing thread is a special sewing thread made of polytetrafluoroethylene, which is resistant to strong acids and alkalis.

[0003] The existing polytetrafluoroethylene sewing thread needs to be wound on a bobbin before it can be used with sewing equipment. However, when the winding tooling for the production of polytetrafluoroethylene sewing thread is used to rotate and fix the bobbin, the plug on the rotating shaft must be removed before the bobbin can be assembled, and then it must be fixed with the plug. As a result, the bobbin removal and replacement steps take a long time, affecting the production efficiency of the polytetrafluoroethylene sewing thread.

[0004] The existing winding process of polytetrafluoroethylene sewing thread has the following disadvantages: the existing rotary tooling used for winding polytetrafluoroethylene sewing thread production has many steps for disassembling and assembling the bobbin, which affects the efficiency of bobbin disassembly and replacement, resulting in low production efficiency of polytetrafluoroethylene sewing thread. To this end, we propose a polytetrafluoroethylene sewing thread production bobbin quick-change structure. Utility Model Content

[0005] The main purpose of the utility model is to provide a polytetrafluoroethylene sewing thread production line drum quick-change structure, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A polytetrafluoroethylene sewing thread production line cylinder quick-change structure, comprising a mounting frame, a bearing and a bearing, and also comprising a fixed cone block and a moving cone group, wherein the two ends of the top of the mounting frame are respectively mounted with the bearing a and the bearing b, the fixed cone block is arranged at one end of the mounting frame, and the tail end of the fixed cone block is fixedly mounted with the inner sleeve of the bearing a through a key pin;

[0008] The b-bearing comprises a bearing and a slot, wherein the slot is opened at equal distances along the inner wall of the inner sleeve of the bearing.

[0009] Furthermore, the movable cone assembly includes a conical pressure block, a pull rod, a limit clip, a tension spring and a paddle. The pull rod is fixedly connected to the center of the back of the conical pressure block, and a limit clip corresponding to the slot on the b bearing is integrated on the periphery of the pull rod.

[0010] Furthermore, the pull rod is inserted into the b bearing, and the limiting clamping strips on the periphery of the pull rod are respectively inserted into the clamping grooves.

[0011] Furthermore, the paddle is fixedly connected to the end of the pull rod at a side away from the conical pressing block.

[0012] Furthermore, the tension spring is sleeved on the pull rod, and two ends of the tension spring are respectively welded and fixed to the paddle and the inner sleeve of the b bearing.

[0013] Compared with the prior art, the utility model has the following beneficial effects: a bobbin tooling is formed by a mounting frame, a bearing, a bearing, a fixed cone block and a moving cone group, so as to provide a set of quick-change mechanisms for bobbins used for winding after the production of polytetrafluoroethylene sewing thread, so that workers can quickly disassemble and assemble the bobbins on the winding equipment, and the operation is convenient and efficient. The fixed cone block is inserted into the center of one end of the bobbin, and the moving cone group is inserted into the center of the other end of the bobbin. The a bearing and the b bearing provide axial rotation support for the fixed cone block and the moving cone group respectively, so that the bobbin can be rotated and wound under the support of the fixed cone block and the moving cone group. At the same time, based on the stretching of the spring, the moving cone group can be flexibly pulled and drawn in the b bearing, so that the bobbin can be quickly disassembled and replaced, which is conducive to faster winding efficiency in the production of polytetrafluoroethylene sewing thread, and solves the problem that the existing rotary tooling for winding polytetrafluoroethylene sewing thread production has many steps for disassembling and assembling the bobbin, which affects the disassembly and replacement efficiency of the bobbin and leads to low production efficiency of polytetrafluoroethylene sewing thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a polytetrafluoroethylene sewing thread production line drum quick-change structure.

[0015] Figure 2 The utility model is a schematic diagram of the mounting frame structure of a polytetrafluoroethylene sewing thread production line drum quick-change structure.

[0016] Figure 3 It is a schematic diagram of a movable cone group of a polytetrafluoroethylene sewing thread production line cylinder quick-change structure of the utility model.

[0017] Figure 4 This is a schematic diagram of the B bearing of a polytetrafluoroethylene sewing thread production line cylinder quick-change structure of the utility model.

[0018] In the figure: 1, mounting frame; 2, bearing a; 3, fixed cone block; 4, bearing b; 401, bearing; 402, slot; 5, moving cone group; 501, conical pressure block; 502, pull rod; 503, limit clamping strip; 504, tension spring; 505, paddle. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-4As shown, a polytetrafluoroethylene sewing thread production line cylinder quick-change structure includes a mounting frame 1, a bearing 2 and a b bearing 4, and also includes a fixed cone block 3 and a moving cone group 5. The two ends of the top of the mounting frame 1 are respectively installed with the a bearing 2 and the b bearing 4. The fixed cone block 3 is arranged at one end inside the mounting frame 1, and the tail end of the fixed cone block 3 is fixedly installed with the inner sleeve of the a bearing 2 through a key pin; the b bearing 4 includes a bearing 401 and a slot 402, and the slot 402 is opened at equal distances along the inner wall of the inner sleeve of the bearing 401.

[0021] Among them, the moving cone group 5 includes a conical pressure block 501, a pull-out rod 502, a limit strip 503, a tension spring 504 and a paddle 505. The pull-out rod 502 is fixedly connected to the center of the back of the conical pressure block 501. The outer periphery of the pull-out rod 502 is integrally provided with a limit strip 503 corresponding to the slot 402 on the b bearing 4. The pull-out rod 502 is inserted into the b bearing 4, and the limit strips 503 on the outer periphery of the pull-out rod 502 are respectively inserted into the slot 402; the slot 402 and the limit strip 503 can increase the resistance between the pull-out rod 502 and the inner sleeve of the bearing 401, so that the pull-out rod 502 can rotate based on the bearing 401.

[0022] The paddle 505 is fixedly connected to the end of the pull rod 502 at a side away from the conical pressing block 501 .

[0023] Among them, the tension spring 504 is sleeved on the pulling rod 502, and the two ends of the tension spring 504 are respectively welded and fixed to the paddle 505 and the inner sleeve of the b bearing 4; the tension spring 504 has an elastic tightening effect between the paddle 505 and the b bearing 4, and in the absence of external force, the tension spring 504 can pull the paddle 505, so that the conical pressure block 501 of the pulling rod 502 pushes the wire bobbin, so that the wire bobbin can be pressed by the conical pressure block 501 and the fixed cone block 3.

[0024] It should be noted that the utility model is a quick-change structure for producing a bobbin of a polytetrafluoroethylene sewing thread production line. During operation, a worker assembles the bobbin quick-change structure of the present application onto the bobbin of a winding machine. When assembling the bobbin, a worker pulls the pull-out rod 502 through the paddle 505 to increase the distance between the conical pressure block 501 at the end of the pull-out rod 502 and the fixed conical block 3, and then inserts one end of the bobbin into the fixed conical block 3, and then releases the paddle 505 to insert the conical pressure block 501 into the other end of the bobbin to complete the assembly of the bobbin. After the winding is completed, a worker pulls the pull-out rod 502 through the paddle 505 again to make the end of the bobbin lose the limit of the conical pressure block 501, and then the bobbin after winding can be removed, thereby completing the quick-change processing of the bobbin for winding processing of polytetrafluoroethylene sewing thread.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A polytetrafluoroethylene sewing thread production line cylinder quick-change structure, comprising a mounting frame (1), a bearing a (2) and a bearing b (4), characterized in that: It also comprises a fixed cone block (3) and a moving cone group (5), wherein the two ends of the top of the mounting frame (1) are respectively mounted with a bearing a (2) and a bearing b (4), the fixed cone block (3) is arranged at one end inside the mounting frame (1), and the tail end of the fixed cone block (3) is fixedly mounted with the inner sleeve of the bearing a (2) via a key pin; The b-bearing (4) comprises a bearing (401) and a retaining groove (402), wherein the retaining groove (402) is provided at equal distances along the inner wall of the inner sleeve of the bearing (401).

2. A polytetrafluoroethylene sewing thread production line drum quick-change structure according to claim 1, characterized in that: The movable cone assembly (5) comprises a conical pressure block (501), a pull rod (502), a limit clamping strip (503), a tension spring (504) and a paddle (505); the pull rod (502) is fixedly connected to the center of the back of the conical pressure block (501); and a limit clamping strip (503) corresponding to the clamping groove (402) on the b bearing (4) is integrally provided on the periphery of the pull rod (502).

3. A polytetrafluoroethylene sewing thread production line drum quick-change structure according to claim 2, characterized in that: The pull-out rod (502) is inserted into the b bearing (4), and the limiting clamping strips (503) on the periphery of the pull-out rod (502) are respectively inserted into the clamping grooves (402).

4. The polytetrafluoroethylene sewing thread production line drum quick-change structure according to claim 2, characterized in that: The plectrum (505) is fixedly connected to the end of the pull rod (502) at a side away from the conical pressing block (501).

5. The polytetrafluoroethylene sewing thread production line drum quick-change structure according to claim 2, characterized in that: The tension spring (504) is sleeved on the pull rod (502), and two ends of the tension spring (504) are respectively welded and fixed to the paddle (505) and the inner sleeve of the b bearing (4).

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