Machining tool for production of high-sealing-performance polytetrafluoroethylene interlayer gasket

Abstract

The utility model discloses a machining tool for producing a high-tightness polytetrafluoroethylene interlayer gasket, which comprises a base, a moving component and four limiting components, the four limiting components are respectively positioned at four corners of the base, and a positioning area for the polytetrafluoroethylene interlayer gasket is formed among the four limiting components. The limiting assemblies are arranged on the moving assembly, each limiting assembly is used for clamping one corner of the polytetrafluoroethylene interlayer gasket, and stretching of the polytetrafluoroethylene interlayer gasket is completed through displacement of the moving assembly. After the screw rod is axially fed relative to the limiting base, the positioning plate is driven to descend, the polytetrafluoroethylene interlayer gasket is clamped and fixed, then the sliding block slides in the sliding groove, the moving column is driven to move, the limiting base drives the polytetrafluoroethylene interlayer gasket to be leveled, and the surface of the polytetrafluoroethylene interlayer gasket does not have wrinkles; and the precision in the later machining process is improved.

Description

Technical Field

[0001] The utility model relates to a processing tool for producing a high-sealing polytetrafluoroethylene sandwich gasket. Background Art

[0002] Polytetrafluoroethylene is a high molecular weight polymer made by polymerizing tetrafluoroethylene as a monomer. Its chemical formula is (C2F4) n PTFE has excellent heat and cold resistance and can be used for long periods of time at temperatures between -180°C and 260°C. This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. Furthermore, PTFE is heat-resistant and has an extremely low coefficient of friction.

[0003] Currently, polytetrafluoroethylene sandwich gaskets need to be cut and processed during the production process to achieve the required area. However, during the processing, polytetrafluoroethylene itself may have certain wrinkles, resulting in inaccurate cutting and affecting subsequent use. Utility Model Content

[0004] The purpose of the utility model is to provide a processing tool for producing a high-sealing polytetrafluoroethylene sandwich gasket to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a processing tool for the production of high-sealing polytetrafluoroethylene sandwich gaskets, comprising a base, a moving component and a limit component, wherein four limit components are provided, which are respectively located at the four corners of the base, and a positioning area for the polytetrafluoroethylene sandwich gasket is formed between the four limit components, and the limit components are provided on the moving component, and each limit component is used to clamp a corner of the polytetrafluoroethylene sandwich gasket, and the stretching of the polytetrafluoroethylene sandwich gasket is completed by the displacement of the moving component.

[0006] Preferably, the moving assembly includes slide rails opened on the surface of the base and located at four corners, and moving columns are provided in the slide rails.

[0007] Preferably, slide grooves are provided on both sides of the slide rail, and sliders are provided on both sides of the movable column, and the sliders extend into the slide grooves.

[0008] Preferably, the limiting assembly includes a limiting seat arranged on the upper surface of the movable column, a cavity is defined in the limiting seat, and the cavity is open toward the side of the polytetrafluoroethylene interlayer gasket.

[0009] Preferably, a threaded hole is provided on the upper surface of the limit seat, and a screw which can be axially fed upward and downward relative to the surface of the limit seat is inserted into the threaded hole.

[0010] Preferably, one end of the screw located in the cavity is connected to a positioning plate via a bearing.

[0011] Preferably, the end of the screw away from the positioning plate is connected to a handle.

[0012] The technical effects and advantages of the utility model are as follows: the processing tooling for the production of the high-sealing polytetrafluoroethylene sandwich gasket places the four corners of the polytetrafluoroethylene sandwich gasket in the cavities opened in the limit seat, and turns the handle to drive the rotation of the screw. As the screw is axially fed relative to the limit seat, the positioning plate is driven to descend, and the polytetrafluoroethylene sandwich gasket is clamped and fixed. Subsequently, the slider slides in the slide groove to drive the movement of the moving column, so that the limit seat drives the polytetrafluoroethylene sandwich gasket to flatten it, so that there are no wrinkles on its surface, so as to improve the accuracy of the later processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the limit seat of the utility model;

[0015] Figure 3 This is a structural diagram of the chute of the present utility model;

[0016] Figure 4 This is a schematic structural diagram of the screw rod of the present invention.

[0017] In the figure: 1. Base; 2. Slide rail; 3. Moving column; 4. Slide groove; 5. Slider; 6. Limit seat; 7. Screw; 8. Positioning plate; 9. Handle. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] In order to improve the processing accuracy of polytetrafluoroethylene sandwich gaskets, refer to Figure 1 、 Figure 2 and Figure 3As shown, it includes a base 1, a moving component and a limit component, and the limit components are provided with four, which are respectively located at the four corners of the base 1, and a positioning area for the polytetrafluoroethylene sandwich gasket is formed between the four limit components. The limit component is provided on the moving component, and each limit component is used to clamp a corner of the polytetrafluoroethylene sandwich gasket. The stretching of the polytetrafluoroethylene sandwich gasket is completed by the displacement of the moving component, and the four corners of the polytetrafluoroethylene sandwich gasket are respectively placed in the cavity opened in the limit seat 6. The handle 9 is turned to drive the rotation of the screw 7. As the screw 7 is axially fed relative to the limit seat 6, the positioning plate 8 is driven to descend, and the polytetrafluoroethylene sandwich gasket is clamped and fixed. Subsequently, the slider 5 slides in the slide groove 4 to drive the movement of the moving column 3, so that the limit seat 6 drives the polytetrafluoroethylene sandwich gasket to be flattened so that there are no wrinkles on its surface.

[0020] In order to facilitate the flattening of the polytetrafluoroethylene sandwich gasket, refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the moving assembly includes a slide rail 2 opened on the surface of the base 1 and located at the four corners. A moving column 3 is provided in the slide rail 2. By sliding the moving column 3 in the slide rail 2, the limiting seat 6 can be driven to move accordingly, so as to pull the four corners of the polytetrafluoroethylene sandwich gasket in four directions to make its surface flat. Slide grooves 4 are opened on both sides of the slide rail 2. Slide blocks 5 are set on both sides of the moving column 3. The slide blocks 5 extend into the slide grooves 4. By sliding the sliders 5 along the length direction of the slide grooves 4, the moving column 3 can be driven to slide in the slide rail 2. The limiting assembly includes a limiting seat 6 set on the upper surface of the moving column 3. A cavity is opened in the limiting seat 6. The cavity is open toward the side of the polytetrafluoroethylene sandwich gasket. A corner of the polytetrafluoroethylene sandwich gasket can be inserted into the cavity through the open side to facilitate the subsequent fixation of the positioning plate 8. A threaded hole is provided on the upper surface of the limit seat 6, and a screw 7 that can be axially fed up and down relative to the surface of the limit seat 6 is inserted into the threaded hole. The internal thread on the inner wall of the threaded hole is adapted to the external thread on the outer side of the screw 7. As the screw 7 rotates, the screw 7 can be driven to move in or out of the cavity, causing the positioning plate 8 to descend and clamp the polytetrafluoroethylene sandwich gasket. The bearing prevents the positioning plate 8 from rotating with the screw 7. The end of the screw 7 located in the cavity is connected to the positioning plate 8 through a bearing, and the polytetrafluoroethylene sandwich gasket can be clamped and fixed by the positioning plate 8. The end of the screw 7 away from the positioning plate 8 is connected to a handle 9, and the handle 9 is turned to drive the screw 7 to rotate.

[0021] When in use, first place the four corners of the polytetrafluoroethylene sandwich gasket in the cavity opened in the limit seat 6, turn the handle 9 to drive the screw 7 to rotate, and as the screw 7 is axially fed relative to the limit seat 6, it drives the positioning plate 8 to descend, clamping and fixing the polytetrafluoroethylene sandwich gasket. Then, the slider 5 slides in the slide groove 4, driving the movement of the movable column 3, so that the limit seat 6 drives the polytetrafluoroethylene sandwich gasket to flatten it, so that there are no wrinkles on its surface.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. A processing tool for producing high-sealing polytetrafluoroethylene sandwich gaskets, characterized in that: The invention comprises a base (1), a moving component and a limiting component, wherein four limiting components are provided and are respectively located at the four corners of the base (1), and a positioning area for the polytetrafluoroethylene sandwich gasket is formed between the four limiting components. The limiting components are provided on the moving component, and each limiting component is used to clamp a corner of the polytetrafluoroethylene sandwich gasket. The polytetrafluoroethylene sandwich gasket is stretched by the displacement of the moving component.

2. The processing tooling for producing a high-sealability polytetrafluoroethylene sandwich gasket according to claim 1 is characterized by: The moving assembly comprises slide rails (2) opened on the surface of the base (1) and located at four corners, and a moving column (3) is arranged in the slide rails (2).

3. The processing tooling for producing a high-sealability polytetrafluoroethylene sandwich gasket according to claim 2 is characterized by: Slide grooves (4) are provided on both sides of the slide rail (2), and sliders (5) are provided on both sides of the movable column (3), and the sliders (5) extend into the slide grooves (4).

4. The processing tooling for producing a high-sealability polytetrafluoroethylene sandwich gasket according to claim 3 is characterized by: The limiting assembly comprises a limiting seat (6) arranged on the upper surface of the movable column (3), wherein a cavity is provided in the limiting seat (6), and the cavity is open toward one side of the polytetrafluoroethylene interlayer gasket.

5. The processing tooling for producing a high-sealability polytetrafluoroethylene sandwich gasket according to claim 4 is characterized in that: A threaded hole is provided on the upper surface of the limit seat (6), and a screw (7) capable of axially feeding upward and downward relative to the surface of the limit seat (6) is inserted into the threaded hole.

6. The processing tooling for producing a high-sealability polytetrafluoroethylene sandwich gasket according to claim 5, characterized in that: One end of the screw (7) located in the cavity is connected to a positioning plate (8) via a bearing.

7. The processing tooling for producing a high-sealability polytetrafluoroethylene sandwich gasket according to claim 6, characterized in that: The end of the screw rod (7) away from the positioning plate (8) is connected to a handle (9).

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