Raw material filtering device for preparing high-toughness PVC (polyvinyl chloride) membrane material
By designing a rotating filter cartridge assembly and a multi-stage filter screen cylinder rolling filter device, the problem of material accumulation caused by traditional static filter screens is solved, achieving high efficiency in PVC membrane material raw material particle size uniformity, and improving the membrane material's high toughness and product quality.
Patent Information
- Application Number
- CN202520404677.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-10
AI Technical Summary
In traditional PVC membrane filtration devices, the static filter screen leads to material accumulation, affecting the filtration effect and failing to effectively guarantee the uniformity of raw material particles in high-toughness PVC membranes.
A filtration device comprising a filter housing, a support frame, a filter cartridge assembly, and a drive motor was designed. The device performs rolling filtration through the rotating filter cartridge assembly and achieves multi-stage filtration using multi-stage filter screens to ensure that the particle size meets the requirements.
It achieves efficient rolling filtration, ensuring uniform particle size of PVC membrane raw materials, and improving the membrane's high toughness and product quality.
Smart Images

Figure CN223864095U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of PVC membrane processing technology, and relates to a raw material filtration device for preparing high-toughness PVC membrane. Background Technology
[0002] In the production and processing of high-toughness PVC membrane, polyvinyl chloride resin is melted and then calendered. In order to ensure the high toughness of the PVC membrane, the raw materials of the PVC membrane need to be filtered and screened to avoid incomplete melting of the raw materials due to large differences in particle size, which would affect the high toughness of the PVC membrane.
[0003] Traditional PVC membrane filtration devices mainly rely on filter screens for filtration and screening. During the filtration and screening process, the static state of the filter screen can easily lead to material accumulation, affecting the filtration and screening effect. To address this issue, we designed a raw material filtration device for the preparation of high-toughness PVC membranes. Summary of the Invention
[0004] The purpose of this invention is to provide a raw material filtration device for the preparation of high-toughness PVC membrane materials, so as to solve the problems mentioned in the background art.
[0005] The objective of this utility model can be achieved through the following technical solution: a raw material filtration device for preparing high-toughness PVC membrane materials, comprising a filter box and two support frames, wherein the filter box is fixedly installed at the top of the two support frames, and a feed hopper is fixedly installed on one side of the top of the filter box. An inclined filter cylinder assembly is rotatably connected inside the filter box, and the top of the filter cylinder assembly is aligned with the discharge end of the feed hopper. A coarse material discharge hopper is fixedly connected to the bottom of the filter cylinder assembly. Multiple inclined partitions are fixedly installed at equal intervals inside the bottom of the filter box, and a fine material discharge hopper is fixedly installed on one side of each of the partitions.
[0006] In the above-mentioned raw material filtration device for preparing high-toughness PVC membrane, the filter cylinder assembly includes a first filter cylinder, a second filter cylinder, and a third filter cylinder. The second filter cylinder is fixedly welded to one side of the first filter cylinder, and the third filter cylinder is fixedly welded to one side of the second filter cylinder. The apertures of the first filter cylinder, the second filter cylinder, and the third filter cylinder increase sequentially.
[0007] In the above-mentioned raw material filtration device for preparing high-toughness PVC membrane, the top and bottom of the filter cylinder assembly are detachably equipped with cross-shaped connectors. A rotating shaft is fixedly provided at the center of each of the two cross-shaped connectors. The two rotating shafts are rotatably connected to the wall of the filter box. A motor mounting plate is fixedly installed on the top of one side of the filter box. A drive motor is fixedly installed at the top of the motor mounting plate. The output shaft of the drive motor is fixedly connected to one end of the corresponding rotating shaft.
[0008] In the above-mentioned raw material filtration device for preparing high-toughness PVC membrane, an installation groove is provided at the end of the cross-shaped connector, and a T-shaped connecting column is nested inside the installation groove. A return spring is fixedly installed at the bottom of the installation groove, and the top of the return spring is fixedly connected to the bottom of the T-shaped connecting column. A connecting seat is provided at each of the four aligned positions of the cross-shaped connector and is fixedly connected to the inner wall of the filter cartridge assembly. The top of the T-shaped connecting column is nested and connected to the connecting seat.
[0009] In the above-mentioned raw material filtration device for preparing high-toughness PVC membrane, a strip-shaped channel communicating with the outside is provided on one side of the mounting groove, and a push block is slidably connected inside the strip-shaped channel. One side of the push block is fixedly connected to the bottom of the T-shaped connecting column.
[0010] In the above-mentioned raw material filtration device for preparing high-toughness PVC membrane, an observation port is provided on the other side of the top of the filter box, a cover plate is hinged to one side of the inner wall of the observation port, and a pull block is fixed on one side of the top of the cover plate.
[0011] In the above-mentioned raw material filtration device for preparing high-toughness PVC membrane, a sealing strip is fixedly bonded to the connection between the cover plate and the observation port.
[0012] Compared with the prior art, the advantages of the raw material filtration device for preparing high-toughness PVC membrane material of this utility model are: the rotating filter cylinder assembly can perform rolling filtration of the raw materials of high-toughness PVC membrane material, ensuring that the particle size of high-toughness PVC membrane material meets the requirements, and avoiding the impact of different particle sizes of membrane material raw materials on the product quality of PVC membrane material. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the raw material filtration device for preparing high-toughness PVC membrane material according to this utility model.
[0014] Figure 2 This is a schematic diagram of the internal structure of the filter box of the raw material filtration device for preparing high-toughness PVC membrane material according to this utility model.
[0015] Figure 3 This is a schematic diagram of the connection structure between the filter cylinder assembly and the cross-shaped connector of the raw material filtration device for preparing high-toughness PVC membrane material according to this utility model.
[0016] Figure 4 This utility model relates to a raw material filtration device for preparing high-toughness PVC membrane materials. Figure 3 Enlarged view of a portion of point A in the middle.
[0017] In the diagram, 1. Filter box; 2. Support frame; 3. Cover plate; 4. Feed hopper; 5. Coarse material discharge hopper; 6. Fine material discharge hopper; 7. Motor mounting plate; 8. Drive motor; 9. Filter cylinder assembly; 901. First filter screen cylinder; 902. Second filter screen cylinder; 903. Third filter screen cylinder; 10. Observation port; 11. Cross-shaped connector; 12. Rotating shaft; 13. Partition plate; 14. T-shaped connecting column; 15. Mounting groove; 16. Return spring; 17. Push block; 18. Connecting seat. Detailed Implementation
[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0019] like Figure 1-4 As shown, the raw material filtration device for preparing high-toughness PVC membrane material of this utility model includes a filter box 1 and two support frames 2. The filter box 1 is fixedly installed on the top of the two support frames 2. A feed hopper 4 is fixedly installed on one side of the top of the filter box 1. An inclined filter cylinder assembly 9 is rotatably connected inside the filter box 1. The top of the filter cylinder assembly 9 is aligned with the discharge end of the feed hopper 4. A coarse material discharge hopper 5 is fixedly connected to the bottom of the filter cylinder assembly 9 and is fixedly connected to the filter box 1. Multiple inclined partitions 13 are fixedly installed at equal intervals inside the bottom of the filter box 1. A fine material discharge hopper 6 is fixedly installed on one side of each of the multiple partitions 13.
[0020] Specifically, the rotating filter cartridge assembly 9 can perform rolling filtration of the raw materials of high-toughness PVC membrane, ensuring that the particle size of the high-toughness PVC membrane meets the requirements and avoiding the impact of different particle sizes of the membrane raw materials on the product quality of PVC membrane.
[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the raw material filtration device for preparing high-toughness PVC membrane material of this utility model includes a filter cylinder assembly 9 comprising a first filter cylinder 901, a second filter cylinder 902, and a third filter cylinder 903. The second filter cylinder 902 is fixedly welded to one side of the first filter cylinder 901, and the third filter cylinder 903 is fixedly welded to one side of the second filter cylinder 902. The pore sizes of the first filter cylinder 901, the second filter cylinder 902, and the third filter cylinder 903 increase sequentially.
[0022] Specifically, the filter cartridge assembly 9 is formed by welding three sections: a first filter cylinder 901, a second filter cylinder 902, and a third filter cylinder 903. The apertures of the first filter cylinder 901, the second filter cylinder 902, and the third filter cylinder 903 are restricted, which enables multi-stage filtration and screening of PVC film raw materials.
[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the raw material filtration device for preparing high-toughness PVC membrane material of this utility model has cross-shaped connectors 11 that can be detachably installed at the top and bottom of the filter cylinder assembly 9. A rotating shaft 12 is fixedly provided at the center of each of the two cross-shaped connectors 11. The two rotating shafts 12 are rotatably connected to the wall of the filter box 1. A motor mounting plate 7 is fixedly installed on the top of one side of the filter box 1. A drive motor 8 is fixedly installed at the top of the motor mounting plate 7. The output shaft of the drive motor 8 is fixedly connected to one end of the corresponding rotating shaft 12.
[0024] Specifically, the drive motor 8 drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the filter cartridge assembly 9 to rotate, thereby realizing the rolling filtration and screening of the PVC membrane material inside the filter cartridge assembly 9.
[0025] The cross-shaped connector 11 has an installation groove 15 at its end. A T-shaped connecting post 14 is nested inside the installation groove 15. A return spring 16 is fixedly installed at the bottom of the installation groove 15. The top of the return spring 16 is fixedly connected to the bottom of the T-shaped connecting post 14. Each of the four aligned positions of the cross-shaped connector 11 is provided with a connecting seat 18 that is fixedly connected to the inner wall of the filter cartridge assembly 9. The top of the T-shaped connecting post 14 is nested and connected to the connecting seat 18.
[0026] A strip-shaped through groove communicating with the outside is provided on one side of the mounting groove 15. A push block 17 is slidably connected inside the strip-shaped through groove, and one side of the push block 17 is fixedly connected to the bottom of the T-shaped connecting column 14.
[0027] Specifically, through the cooperation of the reset spring 16 and the push block 17, the push block 17 can push the T-shaped connecting post 14 to retract, and the reset spring 16 can control the reset of the T-shaped connecting post 14, thereby realizing the insertion and separation of the T-shaped connecting post 14 and the connecting seat 18, thus facilitating the assembly and disassembly between the cross-shaped connector 11 and the filter cartridge assembly 9.
[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the raw material filtration device for preparing high-toughness PVC membrane material of this utility model has an observation port 10 on the other side of the top of the filter box 1. A cover plate 3 is hinged to one side of the inner wall of the observation port 10. A pull block is fixed to one side of the top of the cover plate 3. A sealing strip is fixedly bonded to the connection between the cover plate 3 and the observation port 10.
[0029] Specifically, the observation port 10 allows for easy cleaning when the filter cartridge assembly 9 becomes clogged, and also facilitates replacement when the filter cartridge assembly 9 is damaged.
[0030] In specific implementation, when using this high-toughness PVC membrane material raw material filtration device, the cut PVC membrane material raw material particles are first injected into the filter cylinder assembly 9 through the feed hopper 4. Then, the power is turned on and the drive motor 8 is turned on. The drive motor 8 drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the filter cylinder assembly 9 to rotate. The rotation of the filter cylinder assembly 9 causes the PVC membrane material passing through the filter cylinder assembly 9 to undergo rolling filtration in sequence. The raw material that passes through the filter cylinder assembly 9 flows out through the corresponding fine material discharge hopper 6, while the material that cannot pass through the filter cylinder assembly 9 flows out through the coarse material discharge hopper 5. This achieves filtration and screening of the particle size of the high-toughness PVC membrane material raw material, ensuring the product quality of the PVC membrane material.
[0031] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. A raw material filtration device for preparing high-toughness PVC membrane material, comprising a filter box (1) and two support frames (2), wherein the filter box (1) is fixedly installed on the top of the two support frames (2), and a feed hopper (4) is fixedly installed on one side of the top of the filter box (1), characterized in that, The filter box (1) is rotatably connected to an inclined filter cylinder assembly (9). The top of the filter cylinder assembly (9) is aligned with the discharge end of the feed hopper (4). The bottom of the filter cylinder assembly (9) is provided with a coarse material discharge hopper (5) fixedly connected to the filter box (1). Multiple inclined partitions (13) are fixedly installed at equal intervals inside the bottom of the filter box (1). A fine material discharge hopper (6) is fixedly installed on one side of each of the multiple partitions (13).
2. The raw material filtration device for preparing high-toughness PVC membrane material according to claim 1, characterized in that, The filter cartridge assembly (9) includes a first filter cartridge (901), a second filter cartridge (902), and a third filter cartridge (903). The second filter cartridge (902) is fixedly welded to one side of the first filter cartridge (901), and the third filter cartridge (903) is fixedly welded to one side of the second filter cartridge (902). The apertures of the first filter cartridge (901), the second filter cartridge (902), and the third filter cartridge (903) increase sequentially.
3. The raw material filtration device for preparing high-toughness PVC membrane material according to claim 2, characterized in that, The top and bottom of the filter cartridge assembly (9) are detachably equipped with cross-shaped connectors (11). A rotating shaft (12) is fixedly provided at the center of each of the two cross-shaped connectors (11). The two rotating shafts (12) are rotatably connected to the wall of the filter box (1). A motor mounting plate (7) is fixedly installed on the top of one side of the filter box (1). A drive motor (8) is fixedly installed on the top of the motor mounting plate (7). The output shaft of the drive motor (8) is fixedly connected to one end of the corresponding rotating shaft (12).
4. The raw material filtration device for preparing high-toughness PVC membrane material according to claim 3, characterized in that, The cross-shaped connector (11) has an installation groove (15) at its end. A T-shaped connecting post (14) is nested inside the installation groove (15). A reset spring (16) is fixedly installed at the bottom of the installation groove (15). The top of the reset spring (16) is fixedly connected to the bottom of the T-shaped connecting post (14). Each of the four aligned positions of the cross-shaped connector (11) is provided with a connecting seat (18) that is fixedly connected to the inner wall of the filter cartridge assembly (9). The top of the T-shaped connecting post (14) is nested with the connecting seat (18).
5. The raw material filtration device for preparing high-toughness PVC membrane material according to claim 4, characterized in that, The mounting groove (15) has a strip-shaped through groove on one side that communicates with the outside. A push block (17) is slidably connected inside the strip-shaped through groove. One side of the push block (17) is fixedly connected to the bottom of the T-shaped connecting column (14).
6. The raw material filtration device for preparing high-toughness PVC membrane material according to claim 1, characterized in that, An observation port (10) is provided on the other side of the top of the filter box (1). A cover plate (3) is hinged to one side of the inner wall of the observation port (10). A pull block is fixed on one side of the top of the cover plate (3).
7. The raw material filtration device for preparing high-toughness PVC membrane material according to claim 6, characterized in that, A sealing strip is fixedly bonded to the connection between the cover plate (3) and the observation port (10).