Film cutting device for plastic extrusion casting film machine
By designing a film cutting device for plastic extrusion casting film machine, the problem of film end sticking to the winding coil is solved by using the combination of an inclined cutting knife and a diaphragm roll, and the film end is easily dragged Drag and use improve the convenience of operation.
Patent Information
- Application Number
- CN202421261985.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-04
AI Technical Summary
After the film is produced, the ends of the film are easily stuck to the winding coil, which makes it difficult to find the rear end and cannot be found during use, which is extremely troublesome.
A film cutting device for plastic extrusion casting film machine is designed, including cutting table, triangular vertical table, connecting shaft, movable tube, flip plate, inclined cutting knife, placement frame, diaphragm roll and door frame, which is cut by inclined cutting. The combination of the knife and the diaphragm roll achieves precise cutting of the film and retaining the end.
It effectively solves the problem of film ends sticking to the winding roll, realizes convenient drag and use of film ends, and improves the convenience of operation.
Smart Images
Figure CN222472657U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of film processing, in particular to a film cutting device for a plastic extrusion cast film machine. Background Art
[0002] Cast film is a non-stretched, non-directional flat extruded film produced by quenching the melt. The plastic film prepared by the casting method first passes through the extruder to plasticize and melt the raw materials. It is extruded through a T-shaped structure forming die and cast in a sheet shape onto the roller surface of a steadily rotating cooling roller. The film is cooled and shaped on the cooling roller, and then the product is rolled up after traction and trimming. It includes PE cast film (CPE) - which is divided into LLDPE, LDPE, HDPE cast film; PET cast film; PVC cast film; PP cast film (CPP); EVA cast film; CPET cast film; PVB glass interlayer film, etc. The cast coating method is a type of extruded melt cast film. Its basic principle is to inject adhesive through the pressure of the coating head cavity. The top of the coating head is a slit with adjustable size. During coating, as the base paper runs, the adhesive flows out of the slit of the coating head evenly and is coated on the surface of the base paper. There are two methods: single-layer cast and multi-layer co-extrusion cast. The main requirements for single-layer film are low-temperature heat sealing performance and good flexibility. Multi-layer co-extruded cast film can generally be divided into three layers: heat sealing layer, support layer, and corona layer. The material selection is wider than that of single-layer film, and materials that meet the requirements of each layer can be selected separately to give the film different functions and uses. Among them, the heat sealing layer group needs to be heat-sealed, which requires the material to have a low melting point, good hot melt, a wide heat sealing temperature, and easy sealing; the support layer supports the film and increases the stiffness of the film; the corona layer needs to be printed or metallized, and requires a moderate surface tension, and there should be strict restrictions on the addition of additives.
[0003] After the film is produced, it is necessary to set the length of the film before cutting. However, after the film is cut, the end of the film will stick to the winding roll, and it is difficult to find the end. The end cannot be found during use, which is extremely troublesome. In view of this, a film cutting device for a plastic extrusion cast film machine is developed. Utility Model Content
[0004] The utility model provides a film cutting device for a plastic extrusion cast film machine, which solves the problem in the prior art that after the film production is completed, the film needs to be cut when it is wound, and the end of the film will stick to the winding roll, and it is difficult to find the end. When in use, the end cannot be found, which is very troublesome.
[0005] The technical solution of the utility model is as follows:
[0006] A processing table, the bottom surface of which is provided with supporting legs;
[0007] A cutting and distinguishing component, wherein the cutting and distinguishing component is arranged on the processing table;
[0008] A driving rotating assembly, wherein the driving rotating assembly is arranged on the upper end surface of the processing table;
[0009] The cutting and dividing component includes a cutting table, a triangular stand is provided on the cutting table, a connecting shaft is provided on the triangular stand, a movable tube is mounted on the connecting shaft, a flip plate is connected to the lower end surface of the movable tube, an inclined cutting knife is provided at one end of the flip plate, a placement frame is provided on the side wall of the flip plate, a diaphragm roll is placed on the placement frame, one end of the diaphragm roll extends out, a portal frame is provided on the lower end surface of the flip plate, and the extended end of the diaphragm roll rests on the portal frame.
[0010] As a further technical solution, a driving cylinder is provided on the cutting table, a walking wheel is provided at the output end of the driving cylinder, a walking groove is provided on the lower end surface of the flip plate, and the walking wheel is embedded in the walking groove.
[0011] As a further technical solution, the driving rotating assembly includes a support frame, which is arranged on the upper end surface of the processing table, a moving wheel is arranged on the upper end of the support frame, an annular groove is arranged on the bottom surface of the cutting table, and the moving wheel is embedded in the annular groove, and a driving motor is arranged on the upper end surface of the processing table, and a driving rod is connected to the output end of the driving motor, and the driving rod is fixedly connected to the cutting table.
[0012] As a further technical solution, a counterweight block is provided on the upper surface of the flip plate, and the counterweight block is located directly above the driving cylinder.
[0013] As a further technical solution, the number of the support frames is four, and the four support frames are evenly distributed on the processing table, and the support frames are spread out with the driving motor as the center.
[0014] As a further technical solution, the diaphragm roll is a plastic film that has static electricity adsorption.
[0015] As a further technical solution, the driving motor is vertically arranged, and the driving rod is fixed to the cutting table by welding.
[0016] As a further technical solution, the movable tube and the connecting shaft are connected via a bearing sleeve.
[0017] The working principle and beneficial effects of the utility model are:
[0018] In the utility model, the cutting table, the triangular stand, the connecting shaft, the movable tube, the turning plate, the inclined cutting knife, the placement frame, the diaphragm roll, the door frame, the driving cylinder, the walking wheel and the walking groove in the cutting and distinguishing components interact with each other, so that the inclined cutting knife cuts the film on the conveyor belt, and the diaphragm roll is used to lay the diaphragm, so that the end of the rolled film can be dragged out at any time, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0020] Figure 1 It is a schematic diagram of the structure of the utility model;
[0021] Figure 2 It is an axonometric view of the utility model;
[0022] Figure 3 This is a bottom view of the cutting table of the utility model;
[0023] Figure 4 This is a partial axonometric view of the flip plate of the utility model;
[0024] In the figure: 1. Processing table; 2. Supporting feet; 3. Cutting section assembly; 3-1. Cutting table; 3-2. Triangular stand; 3-3. Connecting shaft; 3-4. Movable tube; 3-5. Turning plate; 3-6. Inclined cutting knife; 3-7. Placement frame; 3-8. Diaphragm roll; 3-9. Door-shaped frame; 3-10. Driving cylinder; 3-11. Traveling wheel; 3-12. Traveling groove; 4. Driving rotating assembly; 4-1. Support frame; 4-2. Moving wheel; 4-3. Annular groove; 4-4. Driving motor; 4-5. Driving rod; 5. Counterweight. DETAILED DESCRIPTION
[0025] The following will be combined with 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 of 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.
[0026] like Figure 1~Figure 4 As shown, this embodiment provides a film cutting device for a plastic extrusion cast film machine, comprising
[0027] A processing table 1, wherein the bottom surface of the processing table 1 is provided with supporting legs 2;
[0028] A cutting and distinguishing component 3, wherein the cutting and distinguishing component 3 is arranged on the processing table 1;
[0029] A driving rotating assembly 4, wherein the driving rotating assembly 4 is arranged on the upper end surface of the processing table 1;
[0030] The cutting and dividing component 3 includes a cutting table 3-1, on which a triangular stand 3-2 is arranged, on which a connecting shaft 3-3 is arranged, on which a movable tube 3-4 is mounted, and the lower end face of the movable tube 3-4 is connected with a flip plate 3-5, one end of which is provided with an inclined cutting knife 3-6, and a side wall of the flip plate 3-5 is provided with a mounting frame 3-7, on which a diaphragm roll 3-8 is mounted, one end of which protrudes, and a portal frame 3-9 is arranged on the lower end face of the flip plate 3-5, and the protruding end of the diaphragm roll 3-8 rests on the portal frame 3-9.
[0031] When the film is cut off, the end of the film roll 3-8 will be in contact with the film to be cut, and the film roll 3-8 will be attached to the film through the static electricity of the film itself. After the inclined cutting knife 3-6 cuts, a certain length of film will be left at the end of the film, so that the end of the film will not be adsorbed by the partition of the film, so that the end of the film is retained and can be pulled out at any time during use.
[0032] Specifically, a driving cylinder 3-10 is provided on the cutting table 3-1, a walking wheel 3-11 is provided at the output end of the driving cylinder 3-10, a walking groove 3-12 is provided on the lower end surface of the flip plate 3-5, and the walking wheel 3-11 is embedded in the walking groove 3-12.
[0033] In this embodiment, the driving cylinder 3-10 is used to drive the flipping of the flip plate 3-5, and the walking wheel 3-11 walks in the walking groove 3-12, so that the driving cylinder 3-10 is more stable when pushing upward.
[0034] Furthermore, the driving rotating assembly 4 includes a support frame 4-1, which is arranged on the upper end surface of the processing table 1, and a moving wheel 4-2 is arranged on the upper end of the support frame 4-1. The bottom surface of the cutting table 3-1 is provided with an annular groove 4-3, and the moving wheel 4-2 is embedded in the annular groove 4-3. The upper end surface of the processing table 1 is provided with a driving motor 4-4, and the output end of the driving motor 4-4 is connected to a driving rod 4-5, and the driving rod 4-5 is fixedly connected to the cutting table 3-1.
[0035] In this embodiment, the support frame 4-1 is used to support the cutting table 3-1, and the moving wheel 4-2 moves in the annular groove 4-3, so that the driving motor 4-4 can drive the cutting table 3-1 to rotate more smoothly.
[0036] Furthermore, a counterweight block 5 is provided on the upper end surface of the flip plate 3-5, and the counterweight block 5 is located directly above the driving cylinder 3-10. There are four support frames 4-1, and the four support frames 4-1 are evenly distributed on the processing table 1. The support frames 4-1 are spread out with the driving motor 4-4 as the center.
[0037] In this embodiment, the counterweight 5 is used to enable the inclined cutting knife 3-6 on the flip plate 3-5 to be quickly reset after cutting.
[0038] Furthermore, the diaphragm roll 3-8 is a plastic film with self-adsorbing static electricity, the driving motor 4-4 is vertically arranged, the driving rod 4-5 is welded and fixed to the cutting table 3-1, and the movable tube 3-4 is connected to the connecting shaft 3-3 through a bearing set.
[0039] When cutting is required, the cutting table 3-1 is first driven to rotate by the driving motor 4-4, so that the inclined cutting knife 3-6 is in the same position as the film on the production line, and the driving cylinder 3-10 is used to drive the flipping of the flip plate 3-5. Since the flip plate 3-5 is fixedly connected to the movable tube 3-4, the movable tube 3-4 can drive the flip plate 3-5 to flip at an angle when it rotates. During the flipping process of the flip plate 3-5, the inclined cutting knife 3-6 can move downward to realize the cutting process of the inclined cutting knife 3-6. When the whole is flipped downward, the diaphragm roll 3-8 also moves with the inclined cutting knife 3-6, and the inclined cutting knife 3-6 and the diaphragm roll 3-8 approach the film at the same time. At this time, the end of the diaphragm roll 3-8 on the gantry 3-9 will contact the film to be cut, and the diaphragm roll 3-8 and the film will be adsorbed and fit together through the static electricity of the film itself. After the inclined cutting knife 3-6 cuts, a certain length of diaphragm will remain at the end of the film, so that the end of the film will not be adsorbed through the partition of the diaphragm, so that the end of the film is retained and can be pulled out at any time during use.
[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A film cutting device for a plastic extrusion cast film machine, characterized in that: include A processing table (1), wherein the bottom surface of the processing table (1) is provided with supporting legs (2); A cutting and distinguishing component (3), wherein the cutting and distinguishing component (3) is arranged on the processing table (1); A driving rotating assembly (4), wherein the driving rotating assembly (4) is arranged on the upper end surface of the processing table (1); The cutting and dividing component (3) comprises a cutting table (3-1), a triangular stand (3-2) is arranged on the cutting table (3-1), a connecting shaft (3-3) is arranged on the triangular stand (3-2), a movable tube (3-4) is sleeved on the connecting shaft (3-3), a flip plate (3-5) is connected to the lower end surface of the movable tube (3-4), an inclined cutting knife (3-6) is arranged at one end of the flip plate (3-5), a placement frame (3-7) is arranged on the side wall of the flip plate (3-5), a diaphragm roll (3-8) is arranged on the placement frame (3-7), one end of the diaphragm roll (3-8) protrudes, a portal frame (3-9) is arranged on the lower end surface of the flip plate (3-5), and the protruding end of the diaphragm roll (3-8) rests on the portal frame (3-9).
2. A film cutting device for a plastic extrusion cast film machine according to claim 1, characterized in that: The cutting table (3-1) is provided with a driving cylinder (3-10), the output end of the driving cylinder (3-10) is provided with a walking wheel (3-11), the lower end surface of the flip plate (3-5) is provided with a walking groove (3-12), and the walking wheel (3-11) is embedded in the walking groove (3-12).
3. The film cutting device for a plastic extrusion cast film machine according to claim 1, characterized in that: The driving rotating assembly (4) comprises a support frame (4-1), the support frame (4-1) is arranged on the upper end surface of the processing table (1), a moving wheel (4-2) is arranged on the upper end of the support frame (4-1), an annular groove (4-3) is arranged on the bottom surface of the cutting table (3-1), the moving wheel (4-2) is embedded in the annular groove (4-3), a driving motor (4-4) is arranged on the upper end surface of the processing table (1), the output end of the driving motor (4-4) is connected to a driving rod (4-5), and the driving rod (4-5) is fixedly connected to the cutting table (3-1).
4. The film cutting device for a plastic extrusion cast film machine according to claim 2, characterized in that: A counterweight block (5) is provided on the upper end surface of the flip plate (3-5), and the counterweight block (5) is located directly above the driving cylinder (3-10).
5. The film cutting device for a plastic extrusion cast film machine according to claim 3, characterized in that: The number of the support frames (4-1) is four, and the four support frames (4-1) are evenly distributed on the processing table (1), and the support frames (4-1) are spread out with the driving motor (4-4) as the center.
6. The film cutting device for a plastic extrusion cast film machine according to claim 1, characterized in that: The diaphragm roll (3-8) is a plastic film that has the ability to absorb static electricity.
7. A film cutting device for a plastic extrusion cast film machine according to claim 3, characterized in that: The driving motor (4-4) is arranged vertically, and the driving rod (4-5) is fixed to the cutting table (3-1) by welding.
8. The film cutting device for a plastic extrusion cast film machine according to claim 1, characterized in that: The movable tube (3-4) and the connecting shaft (3-3) are connected via a bearing sleeve.