Cutting device for polyester film production

Abstract

The utility model discloses a cutting device for polyester film production, which belongs to the technical field of film production, and comprises an outer frame, an inner frame arranged in the outer frame, a column roller rotatably connected in the inner frame, a cutter fixed on the side surface of the column roller, a pin roller connected on the side surface of the column roller in a rolling manner, and a pressing and cutting component arranged between the outer frame and the inner frame, an adjusting assembly for locking the column roller is arranged at one end of the column roller; locking of the column roller is relieved through the arranged adjusting assembly, so that the column roller can be rotated and adjusted, the cutter on the side face of the column roller is adjusted to face downwards, the cutter makes contact with the side face of a polyester film at the moment, the column roller is locked again through the adjusting assembly, the cutting stability of the cutter to the polyester film is improved, and the cutting efficiency is improved. The pressing and cutting assembly drives the inner frame to move downwards, so that the cutter on the side face of the column roller is close to the cutting base plate, the cutter and the cutting base plate are matched to evenly and rapidly cut a polyester film, and the polyester film cutting and guiding functions are achieved at the same time.

Description

Technical Field

[0001] This utility model relates to the field of film production technology, and in particular to a cutting device for polyester film production. Background Technology

[0002] Polyester film refers to thick sheets made from polyethylene terephthalate using an extrusion process. It is a packaging film with comprehensive performance characteristics. It has good transparency and gloss, good airtightness and aroma retention, moderate moisture resistance, and its moisture permeability decreases at low temperatures. Polyester film has excellent mechanical properties, with the best toughness among all thermoplastics. Its tensile strength and impact strength are much higher than those of ordinary films, and it has good stiffness and dimensional stability. It is suitable for secondary processing such as printing and paper bags. Polyester film also has excellent heat resistance, cold resistance, and good chemical and oil resistance.

[0003] In the prior art, during the production process, a polyester film winding device is needed to wind up the stretched polyester film to facilitate subsequent storage or processing. After winding, the polyester film needs to be cut. However, in the prior art, the polyester film winding device usually requires separate guiding and cutting devices to transport, guide, wind, and cut the polyester film separately. Its overall structure is relatively complex, occupies a large volume, and has a high cost of use.

[0004] Therefore, it is necessary to provide a cutting device for polyester film production to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a cutting device for polyester film production, so as to solve the problems in the above-mentioned background technology that the effective separation of garbage and wastewater cannot be achieved, which is not convenient for classification and treatment and has a heavy burden.

[0006] To achieve the above objectives, the present invention provides the following solution to the above technical problems: a cutting device for polyester film production, comprising an outer frame, an inner frame disposed inside the outer frame, a roller rotatably connected inside the inner frame, a cutter fixed on the side of the roller, a roller rollingly connected to the side of the roller, a pressure cutting assembly for driving the cutter to cut the film disposed between the outer frame and the inner frame, and an adjustment assembly for locking the roller disposed at one end of the roller.

[0007] As a further embodiment of this utility model, the pressing and cutting assembly includes a nut sleeve fixed at the top of the outer frame, a threaded rod internally connected to the nut sleeve, the bottom end of the threaded rod being rotatably connected to the inner frame, a protruding post fixed at one end of the inner frame, and a sliding groove adapted to slide the protruding post on the side of the outer frame.

[0008] As a further embodiment of this utility model, the adjusting component includes a shaft fixed to one end of the roller and arranged coaxially with the roller. A convex plate is fixed on the side of the shaft, and a locking bolt is threaded onto the convex plate. A screw hole adapted to the thread of the locking bolt is opened on the side of the inner frame. There are two screw holes, and the two screw holes correspond to the cutter and the roller respectively.

[0009] As a further embodiment of this utility model, a handle is fixed to the top of the threaded rod, and a rubber sleeve is fitted onto the surface of the handle.

[0010] As a further embodiment of this utility model, an end plate is fixed to the end of the shaft away from the roller, and a handle rod a is fixed to the side of the end plate.

[0011] As a further embodiment of this utility model, a cutting plate is fixed on the inner side wall of the outer frame, and a cutting plate that cooperates with the cutting blade is provided on the top surface of the cutting plate.

[0012] As a further embodiment of this utility model, a support plate is provided on one side of the outer frame, a take-up roller is rotatably connected to the top of the support plate, and a connecting rod is fixed between the outer frame and the support plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] As the polyester film passes through the inner frame, the rollers on the side of the column roller face downwards and contact the polyester film. The rolling rollers limit and guide the conveying of the polyester film, guiding it onto the rotating take-up roller for winding. This improves the smoothness of the polyester film winding on the take-up roller. When the polyester film needs to be cut, the adjusting column roller is rotated so that the cutter on the side of the column roller faces downwards. At this time, the cutter contacts the side of the polyester film, and the inner frame is moved downwards by the pressure cutting assembly. This brings the cutter on the side of the column roller closer to the cutting plate, and the cutter and the cutting plate work together to cut the polyester film evenly and quickly. This system combines the functions of cutting and guiding the polyester film. The guiding and cutting functions can be quickly switched, effectively simplifying the overall structure and reducing investment and maintenance costs. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the overall side view structure of this utility model;

[0017] Figure 2 This is a partial structural diagram of the pressure-cutting component of this utility model;

[0018] Figure 3This is a front view structural diagram of the pressure-cutting component of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the outer frame of this utility model;

[0020] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle;

[0021] Figure 6 This is a partial structural diagram of the roller and cutter of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Cutting assembly; 101. Threaded rod; 102. Nut sleeve; 103. Handle rod; 104. Slide groove; 105. Protruding column; 2. Adjustment assembly; 201. Protruding plate; 202. Locking bolt; 203. Threaded hole; 204. Shaft; 205. End plate; 206. Handle rod a; 3. Outer frame; 4. Connecting rod; 5. Support plate; 6. Take-up roller; 7. Column roller; 10. Inner frame; 11. Roller; 12. Cutting seat plate; 13. Cutting knife. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Please see Figure 1-6This utility model provides a cutting device for polyester film production, including an outer frame 3, an inner frame 10 inside the outer frame 3, a roller 7 rotatably connected inside the inner frame 10, a cutter 13 fixed on the side of the roller 7, and a roller 11 rotatably connected to the side of the roller 7. A pressure cutting assembly 1 for driving the cutter 13 to cut the film is provided between the outer frame 3 and the inner frame 10. An adjustment assembly 2 for locking the roller 7 is provided at one end of the roller 7. A support plate 5 is provided on one side of the outer frame 3. A take-up roller 6 is rotatably connected to the top of the outer frame 3. A connecting rod 4 is fixed between the outer frame 3 and the support plate 5. A cutting plate 12 is fixed on the inner side wall of the outer frame 3. A cutting plate 12 that cooperates with the cutter 13 is provided on the top surface of the cutting plate 12. When winding the polyester film, the take-up roller 6 can be rotated by a motor. The polyester film passes through the inside of the outer frame 3 and is wound up by the rotating take-up roller 6. During the process of the polyester film passing through the inside of the outer frame 3, the rollers on the side of the column roller 7... Roller 11 faces downward and contacts the polyester film, thereby limiting and guiding the conveying of the polyester film through the rolling roller 11, guiding the polyester film onto the rotating take-up roller 6 for winding, improving the smoothness of the polyester film winding on the take-up roller 6. When the polyester film needs to be cut after winding, the locking of the roller 7 is released by the setting component 2, so that the roller 7 can be rotated and adjusted so that the cutter 13 on the side of the roller 7 is adjusted downward. At this time, the cutter 13 contacts the side of the polyester film. Then, the roller 7 is locked again by the setting component 2, improving the stability of the cutter 13 in cutting the polyester film. The inner frame 10 is moved downward by the setting pressure cutting component 1, so that the cutter 13 on the side of the roller 7 is close to the cutting seat plate 12. The cutter 13 and the cutting seat plate 12 work together to cut the polyester film evenly and quickly, so that the cutting and guiding functions of the polyester film are combined. The guiding function and the cutting function can be quickly switched, effectively simplifying the overall structure and reducing investment and maintenance costs.

[0026] Further as Figure 2 and Figure 3As shown, it is worth noting that the cutting assembly 1 includes a nut sleeve 102 fixed to the top of the outer frame 3. A threaded rod 101 is internally threaded onto the nut sleeve 102. The bottom end of the threaded rod 101 is rotatably connected to the inner frame 10. A protrusion 105 is fixed to one end of the inner frame 10, and a sliding groove 104 is provided on the side of the outer frame 3 to slide and adapt to the protrusion 105. When the polyester film needs to be cut, the adjusting roller 7 is rotated to adjust the cutter 13 on the side of the roller 7 to face downwards. At this time, the roller 11 moves to another position, and the cutting... The cutting blade 13 contacts the side of the polyester film. By rotating the threaded rod 101 downwards, and through the cooperation of the protrusion 105 and the slide groove 104, the inner frame 10 is guided and limited. The downward-rotating threaded rod 101 drives the inner frame 10 to move downwards, so that the cutting blade 13 on the side of the roller 7 presses the polyester film and moves it closer to the cutting plate 12. Thus, the cutting blade 13 and the cutting plate 12 work together to cut the polyester film evenly and quickly, so that the cutting and guiding functions of the polyester film are combined and can be quickly switched, effectively improving the overall practicality.

[0027] Further as Figure 3 , Figure 5 and Figure 6 As shown, it is worth noting that the setting component 2 includes a shaft 204 fixed to one end of the roller 7 and arranged coaxially with the roller 7. A protruding plate 201 is fixed on the side of the shaft 204, and a locking bolt 202 is threaded onto the protruding plate 201. A screw hole 203 adapted to the thread of the locking bolt 202 is opened on the side of the inner frame 10. There are two screw holes 203, and the two screw holes 203 correspond to the cutter 13 and the roller 11 respectively. In specific operation, by screwing the locking bolt 202 on the protruding plate 201 into the screw hole 203, the roller 7 is locked, so that the roller 11 can stably guide the polyester film, and at the same time, the cutter 13 can stably cut the polyester film.

[0028] This solution includes the following working process: The polyester film passes through the inside of the outer frame 3 and is wound up by the rotating take-up roller 6. During the process of the polyester film passing through the inside of the outer frame 3, the rollers 11 on the side of the column roller 7 face downward and are in contact with the polyester film. The rollers 11 limit and guide the conveying of the polyester film, guiding it onto the rotating take-up roller 6 for winding. When the winding is completed and the polyester film needs to be cut, the locking bolt 202 on the convex plate 201 is unscrewed to release the locking of the column roller 7. The column roller 7 can then be rotated and adjusted so that the cutter 13 on the side of the column roller 7 can be adjusted. With the section facing downwards, the roller 11 moves to another position. At this time, the cutter 13 contacts the side of the polyester film. By screwing the locking bolt 202 on the convex plate 201 into another screw hole 203, the roller 7 is relocked. By rotating the threaded rod 101 downwards, and through the cooperation of the convex post 105 and the slide groove 104, the inner frame 10 is guided and limited. Thus, the inner frame 10 is moved downwards by the downward-rotating threaded rod 101, so that the cutter 13 on the side of the roller 7 presses the polyester film and moves closer to the cutting plate 12. Thus, the cutter 13 and the cutting plate 12 work together to cut the polyester film evenly and quickly.

[0029] Further as Figure 2 As shown, it is worth noting that a handle rod 103 is fixed to the top of the threaded rod 101, and a rubber sleeve is fitted onto the surface of the handle rod 103; in actual operation, the threaded rod 101 is rotated by holding the handle rod 103, which facilitates operation.

[0030] Further as Figure 6 As shown, it is worth noting that an end plate 205 is fixed on the end of the shaft 204 away from the roller 7, and a handle rod a206 is fixed on the side of the end plate 205; the roller 7 is rotated and adjusted by holding the handle rod a206.

[0031] In summary: The rolling roller 11 limits and guides the conveying of the polyester film, guiding it onto the rotating take-up roller 6 for winding, thus improving the smoothness of the polyester film winding on the take-up roller 6. When the polyester film needs to be cut after winding, the setting component 2 releases the lock of the column roller 7, allowing the column roller 7 to be rotated and adjusted so that the cutter 13 on the side of the column roller 7 is adjusted downward. At this time, the cutter 13 contacts the side of the polyester film. Then, the setting component 2 locks the column roller 7 again, improving the stability of the cutter 13 in cutting the polyester film. The setting pressure cutting component 1 drives the inner frame 10 to move downward, so that the cutter 13 on the side of the column roller 7 is close to the cutting plate 12. The cutter 13 and the cutting plate 12 work together to cut the polyester film evenly and quickly, so that the cutting and guiding functions of the polyester film are combined. The guiding and cutting functions can be quickly switched, effectively simplifying the overall structure and reducing investment and maintenance costs.

Claims

1. A cutting device for polyester film production comprising an outer frame, characterized in that, An inner frame is provided inside the outer frame, and a roller is rotatably connected inside the inner frame. A cutter is fixed on the side of the roller, and a roller is rotatably connected to the side of the roller. A pressure cutting assembly is provided between the outer frame and the inner frame to drive the cutter to cut the film. An adjustment assembly for locking the roller is provided at one end of the roller.

2. The cutting apparatus for polyester film production according to claim 1, wherein The pressure-cutting assembly includes a nut sleeve fixed at the top of the outer frame, a threaded rod internally connected to the nut sleeve, the bottom end of the threaded rod being rotatably connected to the inner frame, a protruding post fixed at one end of the inner frame, and a sliding groove adapted to slide the protruding post on the side of the outer frame.

3. The cutting apparatus for polyester film production according to claim 2, wherein The setting component includes a shaft fixed to one end of the roller and arranged coaxially with the roller. A convex plate is fixed on the side of the shaft, and a locking bolt is threaded onto the convex plate. The side of the inner frame is provided with a screw hole that matches the thread of the locking bolt. There are two screw holes, and the two screw holes correspond to the cutter and the roller respectively.

4. The cutting apparatus for polyester film production according to claim 2, wherein A handle is fixed to the top of the threaded rod, and a rubber sleeve is fitted onto the surface of the handle.

5. The cutting apparatus for polyester film production according to claim 3, wherein An end plate is fixed to the end of the shaft away from the roller, and a handle rod a is fixed to the side of the end plate.

6. The cutting apparatus for polyester film production according to claim 1, wherein A cutting plate is fixed on the inner side wall of the outer frame, and a cutting plate that cooperates with the cutting blade is provided on the top surface of the cutting plate.

7. The cutting apparatus for polyester film production according to claim 1, wherein A support plate is provided on one side of the outer frame, and a take-up roller is rotatably connected to the top of the support plate. A connecting rod is fixed between the outer frame and the support plate.

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