Polytetrafluoroethylene film slitting device

Abstract

The utility model relates to the technical field of material slitting, and particularly discloses a polytetrafluoroethylene film slitting device which comprises a rack, an unwinding roller and a winding roller are rotationally connected to the left side in the rack, the winding roller is located above the unwinding roller, a slitting mechanism and an adjusting mechanism are arranged in the rack, and the slitting mechanism is used for slitting a film. According to the utility model, the slitting mechanism is adjusted through the arranged adjusting mechanism, so that the slitting width of the film can be changed, and the problems that a knife rest needs to be replaced when the slitting width is changed, the work inconvenience is brought to workers when the knife rest is replaced in a narrow space, and the production of the film is influenced are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of material slitting, and in particular relates to a polytetrafluoroethylene film slitting device. Background Art

[0002] Polytetrafluoroethylene film has excellent dielectric properties, no aging, good chemical corrosion resistance and a wide range of strength. In the production process of polytetrafluoroethylene film, it needs to go through stirring and mixing, pressing, sintering, turning, calendering and other processes.

[0003] In the Chinese patent with the publication number CN205973200U, a polytetrafluoroethylene film narrow band slitting machine is mentioned, which includes a frame, a reeling mechanism, a slitting mechanism and a reeling mechanism. The reeling mechanism, the slitting mechanism and the reeling mechanism are all installed on the frame. The slitting mechanism includes a first pressure roller, an auxiliary cutting roller and a second pressure roller arranged in sequence. A knife holder is provided on one side of the auxiliary cutting roller. The auxiliary cutting roller is provided with a first gasket and a second gasket arranged in sequence. The diameter of the first gasket is greater than the diameter of the second gasket. The knife holder is provided with a blade corresponding to the middle position of the second gasket. The polytetrafluoroethylene film narrow band slitting machine forms a groove on the auxiliary cutting roller by arranging the first gasket and the second gasket in sequence on the auxiliary cutting roller, and the diameter of the first gasket is greater than the diameter of the second gasket. The film is slit by arranging a blade corresponding to the middle position of the second gasket on the knife holder, so that the narrow band after slitting is not easy to deform, and the slitting accuracy is high and the slitting is stable.

[0004] However, the above patent has a certain cutting width when slitting the film. If the slitting width is changed, the knife holder needs to be replaced. Replacing the knife holder in a narrow space will bring inconvenience to the workers, thereby affecting the production of the film. Utility Model Content

[0005] The utility model aims to provide a polytetrafluoroethylene film slitting device to solve the problem in the prior art that when changing the slitting width, the knife holder needs to be replaced, and replacing the knife holder in a narrow space will bring inconvenience to the workers, thereby affecting the production of the film.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A polytetrafluoroethylene film slitting device comprises a frame, wherein a unwinding roller and a winding roller are rotatably connected to the left side of the frame, the winding roller is located above the unwinding roller, and a slitting mechanism and an adjusting mechanism are arranged inside the frame, wherein the slitting mechanism is used for slitting thin films.

[0008] Preferably: the slitting mechanism includes a tool holder shaft and a tool holder assembly, the tool holder shaft is rotatably connected inside the frame, a limiting groove is provided on the side wall of the tool holder shaft, the tool holder assembly is slidably connected to the circumferential surface of the tool holder shaft, and the tool holder assembly is provided in multiple groups.

[0009] Preferably: the tool holder assembly includes a tool holder sleeve and a tool head, the tool holder sleeve is slidably connected to the circumferential surface of the tool holder shaft, a limiting block is fixedly connected inside the tool holder sleeve, the limiting block is located inside the limiting groove and slidably connected thereto, a connecting rod and an adjusting rod are fixedly connected to the outer wall of the tool holder sleeve, and the tool head is fixedly connected to the end of the connecting rod away from the tool holder sleeve.

[0010] Preferably, the adjustment mechanism comprises an adjustment plate and an electric push rod, the front and rear end surfaces of the frame are provided with slide grooves, an adjustment plate is slidably connected between two groups of the slide grooves, and the upper surface of the adjustment plate is provided with a guide groove.

[0011] Preferably, the guide grooves are provided in a plurality of groups, the spacings between adjacent guide grooves are the same, and the spacings between the plurality of groups of guide grooves increase successively from left to right.

[0012] Preferably, both front and rear ends of the frame are fixedly connected with electric push rods, and the output shaft end of the electric push rod is fixedly connected to the right end of the adjustment plate.

[0013] Preferably: a guide mechanism is arranged inside the frame, and the guide mechanism includes a first guide roller, a second guide roller and a third guide roller; the first guide roller, the second guide roller and the third guide roller are rotatably connected inside the frame, the first guide roller is located at the lower left of the third guide roller, the second guide roller is located at the upper right of the third guide roller, and the second guide roller and the third guide roller are both located directly below the adjustment mechanism.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model starts the electric push rod to drive the adjustment plate to move to the left, and then drives the blade time interval to become larger under the transmission of the adjustment rod, so that the width between the films is changed during the slitting process, thereby solving the problem that the knife holder needs to be replaced when changing the slitting width, and replacing the knife holder in a small space will bring inconvenience to the workers at work, thereby affecting the production of the film.

[0016] 2. The utility model provides the first guide roller, the second guide roller and the third guide roller, so that when the film is cut, on the one hand, it can guide the film, and on the other hand, it can reserve enough moving space for changing the position of the adjustment plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional plan structure of the frame of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall left-side structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the main structure of the tool holder assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the top view structure of the adjustment plate of the utility model.

[0022] In the figure: 1. frame; 11. slide; 2. unwinding roller; 3. guide mechanism; 31. first guide roller; 32. second guide roller; 33. third guide roller; 4. slitting mechanism; 41. tool holder shaft; 411. limit groove; 42. tool holder assembly; 421. tool holder sleeve; 422. limit block; 423. connecting rod; 424. tool head; 425. adjusting rod; 5. adjusting mechanism; 51. adjusting plate; 511. guide groove; 52. electric push rod; 6. winding roller. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-Figure 3 As shown, the utility model provides a polytetrafluoroethylene film slitting device, including a frame 1, a unwinding roller 2 and a winding roller 6 are rotatably connected to the left side of the frame 1, and the winding roller 6 is located above the unwinding roller 2. A slitting mechanism 4 and an adjusting mechanism 5 are arranged inside the frame 1, and the slitting mechanism 4 is used for slitting the film. The slitting mechanism 4 is adjusted by the arranged adjusting mechanism 5, so that the slitting width of the film can be changed, thereby solving the problem that the tool holder needs to be replaced when changing the slitting width, and replacing the tool holder in a narrow space will bring inconvenience to the workers at work, thereby affecting the production of the film.

[0025] In a further embodiment, referring to Figure 3-Figure 4The slitting mechanism 4 includes a tool holder shaft 41 and a tool holder assembly 42. The tool holder shaft 41 is rotatably connected inside the frame 1. A limiting groove 411 is provided on the side wall of the tool holder shaft 41. The tool holder assembly 42 is slidably connected to the circumferential surface of the tool holder shaft 41. The tool holder assembly 42 is provided with multiple groups. The tool holder assembly 42 includes a tool holder sleeve 421 and a cutter head 424. The circumferential surface of the tool holder shaft 41 is slidably connected to the tool holder sleeve 421. The tool holder sleeve 421 is fixedly connected to a limiting block 422 inside. The limiting block 422 is located inside the limiting groove 411 and is slidably connected thereto. A connecting rod 423 and an adjusting rod 425 are fixedly connected to the outer wall of the tool holder sleeve 421. The end of the connecting rod 423 away from the tool holder sleeve 421 is fixedly connected to the cutter head 424.

[0026] In this embodiment, the multiple sets of knife holder assemblies 42 are provided to act on the film, thereby being able to cut the film, thereby achieving a cutting effect.

[0027] In a further embodiment, referring to Figure 3-Figure 5 The adjusting mechanism 5 includes an adjusting plate 51 and an electric push rod 52. Slide grooves 11 are provided on the front and rear end surfaces of the frame 1. The adjusting plate 51 is slidably connected between the two sets of slide grooves 11. A guide groove 511 is provided on the upper end surface of the adjusting plate 51. The lower end of the adjusting rod 425 penetrates into the guide groove 511 and is slidably connected thereto. The front and rear ends of the frame 1 are fixedly connected with the electric push rod 52. The output shaft end of the electric push rod 52 is fixedly connected to the right end of the adjusting plate 51. There are multiple sets of guide grooves 511. The spacing between adjacent guide grooves 511 is the same, and the spacing between the multiple sets of guide grooves 511 increases from left to right.

[0028] In this embodiment, the electric push rod 52 is started to drive the adjustment plate 51 to move to the left. Since the lower end of the adjustment rod 425 passes through the guide groove 511 and is slidably connected thereto, under the restriction of the guide groove 511, the distance between adjacent adjustment rods 425 gradually increases, thereby changing the distance between adjacent cutting heads 424, thereby achieving the effect of adjusting the distance between the cutting heads 424.

[0029] In a further embodiment, referring to Figure 2 A guide mechanism 3 is arranged inside the frame 1, and the guide mechanism 3 includes a first guide roller 31, a second guide roller 32 and a third guide roller 33. The first guide roller 31, the second guide roller 32 and the third guide roller 33 are rotatably connected inside the frame 1. The first guide roller 31 is located at the lower left of the third guide roller 33, the second guide roller 32 is located at the upper right of the third guide roller 33, and the second guide roller 32 and the third guide roller 33 are both located directly below the adjusting mechanism 5.

[0030] In this embodiment, by providing the first guide roller 31, the second guide roller 32 and the third guide roller 33, the film can be guided when being cut, and sufficient moving space can be reserved for changing the position of the adjustment plate 51.

[0031] The working principle of the utility model is as follows: the free end of the film in the unwinding roller 2 is wound around the first guide roller 31, the knife holder sleeve 421, the second guide roller 32, the third guide roller 33 and the side wall of the winding roller 6 in sequence, and then the electric push rod 52 is started to drive the adjustment plate 51 to move to the left. Since the lower end of the adjustment rod 425 penetrates into the guide groove 511 and is slidably connected thereto, the adjustment rod 425 is driven to move under the restriction of the guide groove 511, and the movement of the adjustment rod 425 drives the knife holder sleeve 421 to move, and the movement of the knife holder sleeve 421 drives the connecting rod 423 to move, and the movement of the connecting rod 423 drives the cutter head 424 to move, so that the distance between adjacent cutter heads 424 is increased, thereby changing the width between the films during the slitting process, thereby solving the problem of needing to replace the knife holder when changing the slitting width, and replacing the knife holder in a small space will bring inconvenience to the workers at work, thereby affecting the production of the film.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polytetrafluoroethylene film slitting device, comprising a frame (1), characterized in that: The left side of the frame (1) is rotatably connected with an unwinding roller (2) and a winding roller (6), the winding roller (6) being located above the unwinding roller (2), and a slitting mechanism (4) and an adjusting mechanism (5) are arranged inside the frame (1), the slitting mechanism (4) being used for slitting a film; The slitting mechanism (4) comprises a tool holder shaft (41) and a tool holder assembly (42); the tool holder shaft (41) is rotatably connected inside the frame (1); a limiting groove (411) is provided on the side wall of the tool holder shaft (41); the tool holder assembly (42) is slidably connected to the circumferential surface of the tool holder shaft (41); and a plurality of tool holder assemblies (42) are provided; The adjusting mechanism (5) comprises an adjusting plate (51) and an electric push rod (52); the front and rear end surfaces of the frame (1) are provided with sliding grooves (11); the adjusting plate (51) is slidably connected between two groups of the sliding grooves (11); and the upper end surface of the adjusting plate (51) is provided with a guide groove (511).

2. A polytetrafluoroethylene film slitting device according to claim 1, characterized in that: The tool holder assembly (42) comprises a tool holder sleeve (421) and a tool head (424); the circumferential surface of the tool holder shaft (41) is slidably connected to the tool holder sleeve (421); a limiting block (422) is fixedly connected inside the tool holder sleeve (421); the limiting block (422) is located inside the limiting groove (411) and is slidably connected thereto; a connecting rod (423) and an adjusting rod (425) are fixedly connected to the outer wall of the tool holder sleeve (421); and the tool head (424) is fixedly connected to one end of the connecting rod (423) away from the tool holder sleeve (421).

3. The polytetrafluoroethylene film slitting device according to claim 1, characterized in that: The guide grooves (511) are provided in a plurality of groups, the spacing between adjacent guide grooves (511) is the same, and the spacing between the plurality of groups of guide grooves (511) increases successively from left to right.

4. A polytetrafluoroethylene film slitting device according to claim 3, characterized in that: The front and rear ends of the frame (1) are both fixedly connected with electric push rods (52), and the output shaft end of the electric push rod (52) is fixedly connected to the right end of the adjustment plate (51).

5. The polytetrafluoroethylene film slitting device according to claim 1, characterized in that: A guide mechanism (3) is arranged inside the frame (1), and the guide mechanism (3) comprises a first guide roller (31), a second guide roller (32) and a third guide roller (33). The first guide roller (31), the second guide roller (32) and the third guide roller (33) are rotatably connected inside the frame (1), the first guide roller (31) is located at the lower left of the third guide roller (33), the second guide roller (32) is located at the upper right of the third guide roller (33), and the second guide roller (32) and the third guide roller (33) are both located directly below the adjustment mechanism (5).

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