Automatic shearing machine for PTFE (Polytetrafluoroethylene) flat sheet membrane

Abstract

The utility model provides an automatic PTFE flat sheet membrane shearing machine which comprises a base, the top of the base is fixedly connected with a first mounting frame, two guide rollers are rotationally connected between the two sides of the inner wall of the first mounting frame, the two sides of the inner wall of the first mounting frame are rotationally connected with two-way lead screws, one end of each two-way lead screw is fixedly connected with a driving hand wheel, and the other end of each two-way lead screw is fixedly connected with a second mounting frame. And the outer surface of the bidirectional screw rod is in threaded connection with two moving plates. Through cooperative use of the bidirectional screw rod, the driving hand wheel, the moving plate, the limiting frame, the rolling assembly, the electric telescopic rod, the limiting assembly and the like, a PTFE flat sheet membrane between the two guide rollers can be limited and fixed, and the situation that the shearing surface is uneven due to the fact that the PTFE flat sheet membrane is prone to deviation during shearing is avoided; and the overall shearing quality and cutting precision of the PTFE flat sheet membrane are guaranteed, meanwhile, the problem that when the PTFE flat sheet membrane deviates, the cutting edge is irregular or burrs appear is solved, and the subsequent application effect of the PTFE flat sheet membrane is improved.

Description

Technical Field

[0001] This utility model relates to the field of PTFE flat sheet film processing, and in particular to an automatic PTFE flat sheet film shearing machine. Background Technology

[0002] PTFE flat sheet membrane is a thin film made of polytetrafluoroethylene. It possesses excellent chemical resistance, high-temperature resistance, electrical insulation, and corrosion resistance, and is widely used in chemical engineering, electronics, power, and medical fields. After production, PTFE flat sheet membranes need to be cut for convenient subsequent use.

[0003] Existing automatic PTFE flat sheet film shearing machines lack an effective fixing structure, causing the PTFE flat sheet film to easily shift during shearing. This results in an uneven sheared surface, affecting the overall shearing quality and cutting accuracy. Furthermore, when the PTFE flat sheet film shifts, irregularities or burrs appear on the cut edges, which in turn affects the subsequent application results. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes an automatic shearing machine for PTFE flat sheet film.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is: an automatic PTFE flat film shearing machine, including a base; a mounting frame one is fixedly connected to the top of the base; two guide rollers are rotatably connected between the two sides of the inner wall of the mounting frame one; a bidirectional lead screw is rotatably connected to the two sides of the inner wall of the mounting frame one; a drive handwheel is fixedly connected to one end of the bidirectional lead screw; two moving plates are threadedly connected to the outer surface of the bidirectional lead screw; a limit frame is fixedly connected between the two sides of the moving plates; a rolling assembly is provided on the top of the limit frame and the top of its inner wall; a mounting frame two is fixedly connected to the top of the base and behind the mounting frame one; an electric telescopic rod is installed on the top of the mounting frame two; the telescopic end of the electric telescopic rod penetrates into the interior of the mounting frame two and is provided with a limit assembly; two mounting plates are fixedly connected to the top of the base and in front of the mounting frame one; an mounting assembly is provided between the two mounting plates; two locking blocks are provided on the mounting assembly; a fixing groove is opened on the top of the locking blocks; a feeding roller is fixedly connected between the opposite sides of the two locking blocks.

[0006] By setting a drive handwheel to rotate the bidirectional lead screw, the two limit plates drive the two limit frames to move closer to each other until they come into contact with both sides of the PTFE flat film between the two guide rollers. At the same time, in conjunction with the limit assembly, the PTFE flat film can be limited and fixed in front of the shearing blade.

[0007] The rolling assembly includes several rolling grooves formed on the top of the limiting frame, and rolling balls are tactilely connected inside each of the rolling grooves.

[0008] By setting rolling grooves and rolling balls, the two guide rollers can be rotated easily, reducing the friction between the two guide rollers and the two limit frames.

[0009] The limiting component includes a limiting plate fixedly connected to the telescopic end of the electric telescopic rod, and a limiting groove is provided on the side of the limiting plate near the mounting frame.

[0010] A guide rod is fixedly connected between the two sides of the inner wall of the limiting groove, and two connecting brackets are slidably connected to the outer surface of the guide rod.

[0011] By setting guide rods and connecting frames, the two moving plates can be made to move in a straight line when the bidirectional lead screw rotates.

[0012] One side of each of the two connecting brackets is fixedly connected to one side of each of the two movable plates.

[0013] The mounting assembly includes two mounting shafts that rotate through two mounting plates, and mounting frames are fixedly connected to opposite sides of the two mounting shafts.

[0014] A fixing frame is fixedly connected to the top of the mounting frame, a screw rod is threaded through the top of the fixing frame, and a fixing block is fixedly connected to the bottom end of the screw rod.

[0015] By driving the screw, the screw moves the fixed block downward until the fixed block enters the fixing groove on the clamping block, thus fixing the clamping block and completing the installation of the feeding roller.

[0016] A shearing blade is fixedly connected to the bottom of the mounting plate.

[0017] Compared with the prior art, the beneficial effects of this utility model include:

[0018] 1. By using a combination of structures such as a two-way lead screw, drive handwheel, moving plate, limit frame, rolling assembly, electric telescopic rod, and limit assembly, the PTFE flat film between the two guide rollers can be limited and fixed, preventing the PTFE flat film from easily shifting during shearing and causing uneven shearing surfaces. This ensures the overall shearing quality and cutting accuracy of the PTFE flat film, and also solves the problem of irregular or burr-like cutting edges caused by PTFE flat film shifting, thus improving the subsequent application effect of the PTFE flat film.

[0019] 2. Through the combined use of mounting plates, mounting components, locking blocks, and fixing slots, the locking blocks can be disengaged from the fixing slots, enabling quick installation and disassembly of the feeding rollers, further improving the ease of use of the PTFE flat film automatic shearing machine. Attached Figure Description

[0020] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0021] Figure 1 The schematic diagram shows an overall three-dimensional structural schematic diagram according to one embodiment of the present invention.

[0022] Figure 2 The schematic diagram shows a structural schematic of a mounting bracket according to one embodiment of the present invention.

[0023] Figure 3 The schematic diagram shows a structural schematic of a mounting plate according to one embodiment of the present invention.

[0024] Figure 4 for Figure 1 A magnified view of a portion at point A shown in the diagram.

[0025] In the diagram, the following components are labeled: 1. Base; 2. Mounting bracket one; 3. Guide roller; 4. Two-way lead screw; 5. Drive handwheel; 6. Moving plate; 7. Limiting bracket; 8. Mounting bracket two; 9. Electric telescopic rod; 10. Mounting plate; 11. Locking block; 12. Fixing groove; 13. Feeding roller; 14. Rolling groove; 15. Rolling ball; 16. Limiting plate; 17. Limiting groove; 18. Guide rod; 19. Connecting bracket; 20. Mounting shaft; 21. Mounting frame; 22. Fixing bracket; 23. Screw; 24. Fixing block; 25. Shearing blade. Detailed Implementation

[0026] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0027] According to one embodiment of the present invention, in conjunction with Figure 1-4As shown. An automatic shearing machine for PTFE flat sheet film includes a base 1; a mounting frame 2 is fixedly connected to the top of the base 1; two guide rollers 3 are rotatably connected between the two sides of the inner wall of the mounting frame 2; a bidirectional lead screw 4 is rotatably connected to the two sides of the inner wall of the mounting frame 2; a drive handwheel 5 is fixedly connected to one end of the bidirectional lead screw 4; two moving plates 6 are threadedly connected to the outer surface of the bidirectional lead screw 4; a limit frame 7 is fixedly connected between the two sides of the moving plates 6; rolling components are provided on the top of the limit frame 7 and the top of its inner wall; a second mounting frame 8 is fixedly connected to the top of the base 1 and behind the mounting frame 2; an electric telescopic rod 9 is installed on the top of the second mounting frame 8; the telescopic end of the electric telescopic rod 9 penetrates into the interior of the second mounting frame 8 and is provided with a limit component; two... Mounting plate 10, with mounting assembly between the two mounting plates 10. The mounting assembly has two locking blocks 11, with a fixing groove 12 on the top of each locking block 11. A feeding roller 13 is fixedly connected between the opposite sides of the two locking blocks 11. Two moving plates 6 are threaded onto two different threads on the bidirectional lead screw 4. The drive handwheel 5 is T-shaped with one end extending to the outside of the mounting frame 2. The top of the limiting frame 7 is located between the two guide rollers 3, and the limiting frame 7 is U-shaped. By setting the drive handwheel 5 to drive the bidirectional lead screw 4 to rotate, the two limiting plates 16 respectively drive the two limiting frames 7 to move closer to each other until they abut against the two sides of the PTFE flat film between the two guide rollers 3. At the same time, in conjunction with the limiting assembly, the PTFE flat film can be limited and fixed in front of the shearing blade 25.

[0028] The rolling assembly includes several rolling grooves 14 formed on the top of the limiting frame 7. Each of the rolling grooves 14 is connected to a rolling ball 15. The rolling grooves 14 are arranged in a rectangular array on the top of the limiting frame 7. By setting the rolling grooves 14 and the rolling balls 15, the two guide rollers 3 can rotate easily, reducing the friction between the two guide rollers 3 and the two limiting frames 7.

[0029] The limiting assembly includes a limiting plate 16 fixedly connected to the telescopic end of the electric telescopic rod 9. A limiting groove 17 is formed on the side of the limiting plate 16 near the mounting bracket 2. A guide rod 18 is fixedly connected between the two sides of the inner wall of the limiting groove 17. Two connecting brackets 19 are slidably connected to the outer surface of the guide rod 18. A shearing blade 25 is fixedly connected to the bottom of the limiting plate 16. The guide rod 18 is square in shape. One side of each of the two connecting brackets 19 is fixedly connected to one side of each of the two moving plates 6. By setting the guide rod 18 and the connecting brackets 19, the two moving plates 6 can make linear movements when the bidirectional lead screw 4 rotates.

[0030] The mounting assembly includes two mounting shafts 20 that rotate through two mounting plates 10. Mounting frames 21 are fixedly connected to opposite sides of each mounting shaft 20. A fixing bracket 22 is fixedly connected to the top of each mounting frame 21. A screw 23 is threaded through the top of the fixing bracket 22. A fixing block 24 is fixedly connected to the bottom of the screw 23. The fixing block 24 is circular in shape and slides through the bottom into the interior of the mounting frame 21. Two locking blocks 11 are slidably connected inside the two mounting frames 21. The diameter of the fixing block 24 is the same as the diameter of the fixing groove 12. By driving the screw 23, the screw 23 moves the fixing block 24 downwards until the fixing block 24 enters the fixing groove 12 on the locking block 11, thus fixing the locking block 11 and completing the installation of the feeding roller 13.

[0031] In this embodiment, when it is necessary to install or remove the feeding roller 13, first place the two locking blocks 11 into the two mounting frames 21 respectively and make the fixing groove 12 correspond to the position of the fixing block 24. At this time, the fixing block 24 is located inside the fixing frame 22. Then, simply rotate the top of the screw 23 to make the screw 23 drive the fixing block 24 to move downward until the fixing block 24 enters the interior of the fixing groove 12, and fix the locking blocks 11 so that the feeding roller 13 is installed between the two mounting plates 10.

[0032] When it is necessary to cut the PTFE flat sheet film, first pass the opening of the PTFE flat sheet film between the two guide rollers 3 and position it below the shearing blade 25. Then, turn the drive handwheel 5 to drive the bidirectional lead screw 4 to rotate, thereby causing the two moving plates 6 to move closer to each other as the bidirectional lead screw 4 rotates. This, in turn, causes the two limiting frames 7 to move closer to each other until they abut against the two sides of the PTFE flat sheet film between the two guide rollers 3. At the same time, the two connecting frames 19 will move closer to each other along the guide rod 18, thereby limiting and fixing the PTFE flat sheet film. Then, simply activate the electric telescopic rod 9, so that its telescopic end can drive the limiting plate 16 and the shearing blade 25 to move downward and contact the PTFE flat sheet film, thereby enabling the cutting of the PTFE flat sheet film.

[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A PTFE flat sheet membrane automatic shearing machine characterized by, The base (1) includes a mounting bracket (2) fixedly connected to its top. Two guide rollers (3) are rotatably connected between the two sides of the inner wall of the mounting bracket (2). Two bidirectional lead screws (4) are rotatably connected between the two sides of the inner wall of the mounting bracket (2). A drive handwheel (5) is fixedly connected to one end of the bidirectional lead screw (4). Two movable plates (6) are threadedly connected to the outer surface of the bidirectional lead screw (4). A limit frame (7) is fixedly connected between the two sides of the movable plates (6). Rolling components are provided on the top of the limit frame (7) and the top of its inner wall. The top of the base (1) is located at the mounting bracket (2). (2) is fixedly connected to the rear of the mounting frame two (8). The top of the mounting frame two (8) is equipped with an electric telescopic rod (9). The telescopic end of the electric telescopic rod (9) extends into the interior of the mounting frame two (8) and is provided with a limit component. The top of the base (1) and in front of the mounting frame one (2) are fixedly connected to two mounting plates (10). An installation component is provided between the two mounting plates (10). The installation component is provided with two locking blocks (11). The top of the locking blocks (11) is provided with a fixing groove (12). A feeding roller (13) is fixedly connected between the opposite sides of the two locking blocks (11).

2. The automatic PTFE flat film shearing machine according to claim 1, characterized in that, The rolling assembly includes several rolling grooves (14) formed on the top of the limiting frame (7), and rolling balls (15) are rolled inside each of the several rolling grooves (14).

3. The PTFE flat sheet membrane automatic shearing machine according to claim 1, characterized in that, The limiting component includes a limiting plate (16) fixedly connected to the telescopic end of the electric telescopic rod (9), and the limiting plate (16) has a limiting groove (17) on the side near the mounting bracket (2).

4. The PTFE flat sheet membrane automatic shearing machine according to claim 3, characterized in that, A guide rod (18) is fixedly connected between the two sides of the inner wall of the limiting groove (17), and two connecting brackets (19) are slidably connected to the outer surface of the guide rod (18).

5. The PTFE flat sheet membrane automatic shearing machine according to claim 4, characterized in that, One side of each of the two connecting brackets (19) is fixedly connected to one side of each of the two movable plates (6).

6. The PTFE flat sheet membrane automatic shearing machine according to claim 1, characterized in that, The mounting assembly includes two mounting shafts (20) that rotatably pass through two mounting plates (10), and each of the two mounting shafts (20) is fixedly connected to a mounting frame (21) on opposite sides.

7. The PTFE flat sheet membrane automatic shearing machine according to claim 6, characterized in that, The top of the mounting frame (21) is fixedly connected to a fixing bracket (22), and a screw (23) is threaded through the top of the fixing bracket (22). A fixing block (24) is fixedly connected to the bottom end of the screw (23).

8. The PTFE flat sheet membrane automatic shearing machine according to claim 3, characterized in that, A shearing blade (25) is fixedly connected to the bottom of the limiting plate (16).

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