Ptfe film cutting device

Abstract

The utility model discloses a ptfe film cutting device which comprises a machine frame, a conveying roller arranged on the machine frame in a rotating mode and a cutting assembly adjacent to the conveying roller, a ptfe film is arranged between the conveying roller and the cutting assembly, the cutting assembly comprises a plurality of cutting knives and a driving assembly used for driving the cutting knives to move at the same time, and the conveying roller is arranged on the machine frame. The moving direction of the cutting knives is opposite to the conveying direction of the ptfe film, and the multiple cutting knives are arranged side by side in the width direction of the ptfe film. The ptfe film cutting device is reasonable in structure, the ptfe films can be cut at the same time before production, manual one-by-one cutting is avoided, and the production efficiency and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting, in particular to a PTFE film cutting device. Background Art

[0002] PTFE membrane is a microporous film made of polytetrafluoroethylene using a special process such as calendering, extrusion, and biaxial stretching.

[0003] During production, the PTFE film needs to be cut into a certain width according to customer needs before shipment. If the PTFE film is produced wider and the customer requires a narrower width, multiple cutting knives are required to cut it simultaneously.

[0004] Before production, not only does the cutting knife need to be installed in place, but it is also necessary to use the cutting knife to manually cut out the openings one by one so that the cutting knife can cut smoothly when the PTFE film is transmitted on the subsequent production line. This is not only time-consuming and labor-intensive, but manual cutting also results in insufficient precision.

[0005] Therefore, it is necessary to improve the ptfe film cutting device of the prior art. Utility Model Content

[0006] The purpose of the utility model is to overcome the defects in the prior art and provide a PTFE film cutting device, which can cut PTFE films at the same time before production, avoiding manual cutting one by one and improving production efficiency and precision.

[0007] In order to achieve the above technical effects, the technical solution of the utility model is: a PTFE film cutting device, comprising a frame, a transmission roller rotatably arranged on the frame, and a cutting assembly adjacent to the transmission roller. The PTFE film is arranged between the transmission roller and the cutting assembly. The cutting assembly includes a plurality of cutting knives and a driving assembly for driving the cutting knives to move simultaneously. The moving direction of the cutting knives is arranged opposite to the transmission direction of the PTFE film, and the plurality of cutting knives are arranged side by side along the width direction of the PTFE film.

[0008] The preferred technical solution is that it also includes a mounting cross bar, the cutting knife is arranged on the mounting cross bar, the driving component is used to drive the mounting cross bar to slide, and the sliding direction of the mounting cross bar is arranged opposite to the transmission direction of the PTFE film.

[0009] The preferred technical solution is that the frame is fixedly provided with a first guide rail, the mounting cross bar is fixedly provided with a first slider slidably connected to the first guide rail, and the extension direction of the first guide rail is parallel to the transmission direction of the PFTE film.

[0010] Preferably, the driving assembly comprises a cylinder, a cylinder body of the cylinder is fixedly connected with the rack, a piston rod of the cylinder is fixedly connected with the mounting cross rod, and the piston rod of the cylinder is arranged in parallel with the extending direction of the first guide rail.

[0011] Preferably, the mounting cross rod is fixedly provided with a second guide rail, the extending direction of the second guide rail is parallel to the width direction of the ptfe film, and a tool seat corresponding to the cutting knife is further arranged, the tool seat is slidably connected with the second guide rail, and a fixing assembly for fixing the tool seat to at least two working positions is arranged between the tool seat and the second guide rail.

[0012] Preferably, the fixing assembly comprises a locking bolt, the second guide rail is provided with a plurality of threaded holes in the extending direction thereof, and the locking bolt is arranged in the tool seat and is threadedly connected with the threaded holes.

[0013] Preferably, the tool seat is provided with a mounting gap for mounting the cutting knife.

[0014] The ptfe film cutting device has the advantages of reasonable structure, the cutting knives are driven to move through the driving assembly, manual cutting of the ptfe film is avoided, and the production efficiency and precision are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of an embodiment of the ptfe film cutting device of the utility model;

[0016] Figure 2 is a structural schematic view of the mounting cross rod;

[0017] Figure 3 is Figure 2 is an enlarged schematic view of position A in FIG.

[0018] Figure 4 is Figure 2 is an enlarged schematic view of position B in FIG.

[0019] In the figure: 1, rack; 11, first guide rail; 2, transmission roller; 3, cutting knife; 4, mounting cross rod; 41, first sliding block; 42, second guide rail; 43, threaded hole; 5, cylinder; 6, tool seat; 61, mounting gap; 7, locking bolt. DETAILED DESCRIPTION

[0020] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Example

[0021] like Figures 1-4 As shown, the PTFE film cutting device of the embodiment includes a frame 1, a transmission roller 2 rotatably arranged on the frame 1, and a cutting component adjacent to the transmission roller 2. The PTFE film is arranged between the transmission roller 2 and the cutting component. The cutting component includes a plurality of cutting knives 3 and a driving component for driving the cutting knives 3 to move simultaneously. The moving direction of the cutting knives 3 is set opposite to the transmission direction of the PTFE film, and the plurality of cutting knives 3 are arranged side by side along the width direction of the PTFE film.

[0022] Through such a design, the driving component can drive all the cutting knives 3 to cut openings in the PTFE film at the same time. Compared with the fixed cutting knives 3 and the production line transmitting the PTFE film, the movement of the cutting knives 3 is more controllable and more convenient, and the openings can be cut in the PTFE film. When it is confirmed that there is no problem, the transmission of the PTFE film can be started, thereby achieving the purpose of cutting and winding the PTFE film.

[0023] Furthermore, it also includes a mounting cross bar 4, the cutting knife 3 is arranged on the mounting cross bar 4, the driving component is used to drive the mounting cross bar 4 to slide, and the sliding direction of the mounting cross bar 4 is set opposite to the transmission direction of the PTFE film.

[0024] With such a design, the driving assembly only needs to drive the mounting cross bar 4 to achieve the purpose of driving all the cutting knives 3 to move.

[0025] Specifically, the rack 1 is fixedly provided with a first guide rail 11, and the mounting cross bar 4 is fixedly provided with a first slider 41 slidably connected to the first guide rail 11. The extension direction of the first guide rail 11 is parallel to the transmission direction of the PFTE film.

[0026] Through such a design, the purpose of sliding the mounting cross bar 4 is achieved.

[0027] Specifically, the driving assembly includes a cylinder 5, the cylinder body of the cylinder 5 is fixedly connected to the frame 1, the piston rod of the cylinder 5 is fixedly connected to the mounting cross bar 4, and the extension direction of the piston rod of the cylinder 5 is arranged parallel to the extension direction of the first guide rail 11.

[0028] Through such a design, the purpose of the cylinder 5 driving the mounting cross bar 4 to slide is achieved.

[0029] Furthermore, the mounting cross bar 4 is fixedly provided with a second guide rail 42, and the extension direction of the second guide rail 42 is parallel to the width direction of the PTFE film; it also includes a tool seat 6 corresponding one-to-one to the cutting knife 3, and the tool seat 6 is slidingly connected to the second guide rail 42, and a fixing component is provided between the tool seat 6 and the second guide rail 42 for fixing the tool seat 6 in at least two working positions.

[0030] Through such a design, the purpose of adjusting the position of the tool holder 6 is achieved.

[0031] Specifically, the fixing assembly includes a locking bolt 7 . The second guide rail 42 is provided with a plurality of threaded holes 43 along its extending direction. The locking bolt 7 is passed through the tool holder 6 and is threadedly connected to the threaded holes 43 .

[0032] Through such a design, the purpose of adjusting and fixing the position of the tool holder 6 on the mounting cross bar 4 is achieved.

[0033] Furthermore, the tool holder 6 is provided with a mounting slot 61 for mounting the cutting knife 3 .

[0034] Through such a design, the purpose of installing the cutting knife 3 on the tool holder 6 is achieved.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A PTFE film cutting device, characterized in that, The invention comprises a frame (1), a transmission roller (2) rotatably arranged on the frame (1), and a cutting assembly adjacent to the transmission roller (2); a PTFE film is arranged between the transmission roller (2) and the cutting assembly; the cutting assembly comprises a plurality of cutting knives (3) and a driving assembly for driving the cutting knives (3) to move simultaneously; the moving direction of the cutting knives (3) is arranged opposite to the transmission direction of the PTFE film; and the plurality of cutting knives (3) are arranged side by side along the width direction of the PTFE film.

2. The PTFE film cutting device according to claim 1, wherein It also includes a mounting cross bar (4), the cutting knife (3) is arranged on the mounting cross bar (4), the driving assembly is used to drive the mounting cross bar (4) to slide, and the sliding direction of the mounting cross bar (4) is arranged opposite to the transmission direction of the PTFE film.

3. The PTFE film cutting device according to claim 2, wherein: The frame (1) is fixedly provided with a first guide rail (11), and the mounting cross bar (4) is fixedly provided with a first slider (41) slidably connected to the first guide rail (11), and the extension direction of the first guide rail (11) is parallel to the transmission direction of the PFTE film.

4. The PTFE film cutting device according to claim 3, characterized in that: The driving assembly comprises a cylinder (5), a cylinder body of the cylinder (5) is fixedly connected to the frame (1), a piston rod of the cylinder (5) is fixedly connected to the mounting cross bar (4), and a telescopic direction of the piston rod of the cylinder (5) is arranged parallel to an extension direction of the first guide rail (11).

5. The PTFE film cutting device according to claim 2, characterized in that: The mounting cross bar (4) is fixedly provided with a second guide rail (42), and the extension direction of the second guide rail (42) is parallel to the width direction of the PTFE film; it also includes a tool seat (6) corresponding to the cutting knife (3) one by one, the tool seat (6) is slidably connected to the second guide rail (42), and a fixing component for fixing the tool seat (6) in at least two working positions is provided between the tool seat (6) and the second guide rail (42).

6. The PTFE film cutting device according to claim 5, characterized in that: The fixing assembly includes a locking bolt (7), and the second guide rail (42) is provided with a plurality of threaded holes (43) along its extension direction. The locking bolt (7) is passed through the tool seat (6) and is threadedly connected to the threaded hole (43).

7. The PTFE film cutting device according to claim 5, characterized in that: The tool seat (6) is provided with a mounting gap (61) for mounting the cutting knife (3).

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