Raw material processing device for polyester film production

Abstract

The utility model discloses a raw material processing device for polyester film production, and particularly relates to the technical field of polyester film production, which comprises a processing box fixedly mounted at the top of a mounting frame, a liquid discharge pipe and a liquid inlet pipe fixedly communicated with the processing box, an electric telescopic rod fixedly mounted at the top of the processing box, and an extrusion plate fixedly mounted at the bottom of the electric telescopic rod. A first filter screen plate is fixedly installed in an inner cavity of the treatment box, a sliding support is arranged at the top of the first filter screen plate, a plurality of scraping plates distributed at equal intervals are fixedly installed on the inner side of the sliding support, the bottoms of the scraping plates are attached to the top of the first filter screen plate, and a second filter screen plate is slidably installed at the bottom of the first filter screen plate in a penetrating mode; by adjusting the overlap ratio of the meshes of the first filter screen plate and the second filter screen plate, the raw material solution and impurities filtered in the raw material solution are discharged in batches, and the scraping of a plurality of scraping plates is matched, so that the first filter screen plate is not blocked, the maintenance cost is reduced, and the downtime is shortened.

Description

Technical Field

[0001] This utility model relates to the field of polyester film production technology, specifically to a raw material processing device for polyester film production. Background Technology

[0002] Patent publication number CN211941954U discloses a raw material processing device for polyester film production, including a processing box. The inner cavity of the processing box is divided into a buffer chamber and a storage chamber on the left and right sides by a filter plate. Multiple overflow holes are evenly distributed on the filter plate. A flanged feed pipe connected to the storage chamber is installed on the top surface of the processing box. An extrusion plate is arranged on the right side of the storage chamber. Multiple needle rods are evenly distributed on the left side of the extrusion plate, corresponding to the multiple evenly distributed overflow holes. A hydraulic push rod is fixedly installed in the middle of the right side wall of the processing box, and the telescopic end of the hydraulic push rod is fixedly connected to the right side of the extrusion plate. This technical solution has a simple structure and is easy to assemble and install. The needle rods evenly distributed on the extrusion plate facilitate cleaning of the overflow holes evenly distributed on the filter plate, playing a role in preventing blockage and cleaning.

[0003] In the prior art, after the filter plate filters the raw material solution, the impurities in the raw material solution are difficult to be discharged and cleaned on the liquid-facing side of the filter plate. Over time, more and more impurities accumulate on the liquid-facing side, which will clog the pores of the filter plate, thereby reducing the filtration efficiency. This also means that the filter plate needs to be replaced or cleaned more frequently, increasing maintenance costs and downtime. Utility Model Content

[0004] The purpose of this invention is to provide a raw material processing device for polyester film production.

[0005] The technical problem solved by this utility model is that the filtered impurities are difficult to remove and clean, and over time, they are prone to clogging the filter plate, which increases the frequency of replacing or cleaning the filter plate, reduces the filtration efficiency, and increases maintenance costs and downtime.

[0006] This utility model can be achieved through the following technical solution: a processing box fixedly installed on the top of the mounting frame, a drain pipe fixedly connected to the bottom of the processing box, an inlet pipe fixedly connected to the top of one side of the processing box, an electric telescopic rod fixedly installed on the top of the processing box, a squeezing plate fixedly installed at the bottom of the electric telescopic rod, a filter screen plate one fixedly installed in the inner cavity of the processing box, a sliding bracket capable of reciprocating left and right on the top of the filter screen plate one, several equally spaced scrapers fixedly installed on the inner side of the sliding bracket, the bottom of the scrapers fitting against the top of the filter screen plate one, a filter screen plate two slidably installed through the bottom of the filter screen plate one, and a limiting component for limiting the position of the filter screen plate two installed on the processing box.

[0007] A further technical improvement of this utility model is that the mesh openings of filter screen plate one and filter screen plate two are in a one-to-one correspondence.

[0008] Furthermore, the structure that causes the sliding rod support to reciprocate left and right includes a sliding groove plate fixedly installed on one side of the sliding support, a second sealed box fixedly installed on one side of the processing box near the sliding groove plate, a rotating plate rotatably installed inside the second sealed box, and the end of the rotating plate away from the rotating shaft being slidably connected to the sliding groove plate through it.

[0009] Furthermore, the limiting component includes a first sealed box fixedly installed on one side of the processing box, a slide rod slidably installed through one side of the first sealed box, a threaded rod threadedly connected through one side of the processing box at the position corresponding to the slide rod, one end of the threaded rod extending into the processing box being rotatably connected to one side of the filter screen plate, and the other end of the threaded rod being fixedly connected to one end of the slide rod extending into the first sealed box.

[0010] Furthermore, a knob is fixedly installed at the end of the slide bar away from the threaded rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This application adjusts the overlap of the mesh openings of filter screen one and filter screen two. After all the raw material solution is filtered, the mesh openings of filter screen one and filter screen two are completely overlapped. The filtered impurities can be discharged from the enlarged mesh openings of filter screen one and filter screen two. With the scraping of several scrapers, filter screen one is not clogged, thus reducing maintenance costs and downtime. Attached Figure Description

[0013] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0016] Figure 3 This is a front sectional view of the overall structure of this utility model;

[0017] In the diagram: 1. Mounting frame; 2. Processing box; 3. Drain pipe; 4. Inlet pipe; 5. Electric telescopic rod; 6. Squeezing plate; 7. Filter screen one; 8. Filter screen two; 9. First sealed box; 10. Sliding rod; 11. Threaded rod; 12. Knob; 13. Sliding bracket; 14. Scraper; 15. Slide plate; 16. Second sealed box; 17. Rotating plate. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] Please see Figure 1-3 As shown, this embodiment provides a raw material processing device for polyester film production, including a mounting frame 1, a processing box 2 fixedly mounted on the top of the mounting frame 1, a drain pipe 3 fixedly connected to the bottom of the processing box 2, an inlet pipe 4 fixedly connected to the top of one side of the processing box 2, valves installed on both the drain pipe 3 and the inlet pipe 4, an electric telescopic rod 5 fixedly mounted on the top of the processing box 2, an extrusion plate 6 fixedly mounted on the bottom of the electric telescopic rod 5, and a filter screen plate 7 fixedly mounted inside the processing box 2.

[0020] Open the inlet pipe 4 to transport the raw material solution into the processing tank 2. Then, drive the extrusion plate 6 downward through the electric telescopic rod 5 to extrude the raw material solution through the mesh of the filter screen plate 7 from the top of the filter screen plate 7 to the bottom of the filter screen plate 7. By opening the outlet pipe, the filtered raw material solution in the processing tank 2 can be discharged.

[0021] A filter screen plate 8 is slidably installed through the bottom of filter screen plate 7. The mesh of filter screen plate 8 corresponds one-to-one with the mesh of filter screen plate 7. A first sealed box 9 is fixedly installed on one side of the treatment box 2. A slide rod 10 is slidably installed through one side of the first sealed box 9. A threaded rod 11 is threadedly connected through one side of the treatment box 2 at the position corresponding to the slide rod 10. One end of the threaded rod 11 extends into the treatment box 2 and is rotatably connected to one side of filter screen plate 8. The other end of the threaded rod 11 is fixedly connected to one end of the slide rod 10 extending into the first sealed box 9. A knob 12 is fixedly installed on the end of the slide rod 10 away from the threaded rod 11.

[0022] When the slider 10 is rotated clockwise by the knob 12, the slider 10 will drive the threaded rod 11 to move into the inner cavity of the processing box 2 along the extension direction of the slider 10, thereby causing the filter screen plate 2 8 to slide at the bottom of the filter screen plate 1 7, causing the mesh of the filter screen plate 1 7 and the filter screen plate 2 8 to gradually become completely overlapping, and vice versa, causing the mesh of the filter screen plate 1 7 and the filter screen plate 2 8 to gradually become completely non-overlapping. The larger the overlapping area of ​​the mesh of the filter screen plate 1 7 and the filter screen plate 2 8, the larger the impurities that the raw material solution can filter through the filter screen plate 1 7 and the filter screen plate 2 8, and vice versa, the smaller the impurities that the raw material solution can filter through the filter screen plate 1 7 and the filter screen plate 2 8.

[0023] A sliding bracket 13 is slidably installed through the inner cavity of the processing box 2 near the position above the filter screen plate 7. Several scrapers 14 are fixedly installed on the inner side of the sliding bracket 13 at equal intervals. The bottom of the scrapers 14 is in contact with the top of the filter screen plate 7. A sliding groove plate 15 is fixedly installed on one side of the sliding bracket 13. A second sealed box 16 is fixedly installed on one side of the processing box 2 near the sliding groove plate 15. A rotating plate 17 is rotatably installed inside the second sealed box 16. A drive motor for driving the rotating plate 17 to rotate is installed on the second sealed box 16. The end of the rotating plate 17 away from the rotating shaft is slidably connected through the sliding groove plate 15. The first sealed box 9 is used to isolate the threaded rod 11 from the air outside the processing box 2 to prevent dust in the air from contaminating the threaded rod 11 and being brought into the processing box 2 to contaminate the raw material solution.

[0024] When the rotating plate 17 rotates, it drives the sliding support 13 to move back and forth in the processing box 2 through the sliding plate 15, so that it scrapes the top of the filter screen plate 7 through several scrapers 14. During this process, the end of the rotating plate 17 away from the rotating shaft will slide on the sliding plate 15 to correct the positional relationship between the rotating plate 17 and the sliding support 13. The second sealed box 16 is used to isolate the sliding support 13 from the air outside the processing box 2 to prevent dust in the air from adhering to the sliding support 13 and being brought into the processing box 2 to contaminate the raw material solution.

[0025] In use, this invention first rotates the slide bar 10 via the knob 12, causing the slide bar 10 to drive the filter screen plate 2 8 to slide at the bottom of the filter screen plate 1 7 via the threaded rod 11. The overlap of the mesh openings of the filter screen plate 1 7 and the filter screen plate 2 8 is adjusted so that the size of the overlap is suitable for the minimum amount of impurities in the raw material solution to be filtered. Then, the raw material solution is transported to the processing tank 2 through the inlet pipe 4. Next, the extrusion plate 6 squeezes the raw material solution through the gap between the overlapping mesh openings of the filter screen plate 1 7 and the filter screen plate 2 8, causing impurities smaller than the size of the overlapping mesh openings in the raw material solution to be filtered onto the top of the filter screen plate 1 7. Then, the rotation... The plate 17 rotates, causing the sliding bracket 13 to drive several scrapers 14 to scrape back and forth on the top of the filter screen plate 7, removing impurities that clog the mesh of the filter screen plate 7 until the raw material solution is completely filtered. Then, the outlet pipe is opened to completely discharge the filtered raw material solution. Then, the knob 12 is turned clockwise until the mesh on the filter screen plate 8 and the mesh on the filter screen plate 7 are completely overlapped, and the overlapping area is maximized. At this time, the impurities filtered on the top of the filter screen plate 7 can be discharged to the bottom of the filter screen plate 8 through the gap between the overlapping mesh of the filter screen plate 7 and the filter screen plate 8 under the scraping of several scrapers 14, and finally discharged through the drain pipe 3.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A raw material processing device for polyester film production, comprising a processing box (2) fixedly installed on the top of a mounting frame (1), characterized in that: The bottom of the treatment box (2) is fixedly connected with a liquid discharge pipe (3), one side of the top of the treatment box (2) is fixedly connected with a liquid inlet pipe (4), the top of the treatment box (2) is fixedly installed with an electric telescopic rod (5), the bottom of the electric telescopic rod (5) is fixedly installed with an extrusion plate (6), the inner cavity of the treatment box (2) is fixedly installed with a filter screen plate one (7), the top of the filter screen plate one (7) is provided with a sliding support (13) capable of reciprocating left and right, a plurality of equally distributed scraper plates (14) are fixedly installed on the inner side of the sliding support (13), the bottom of the scraper plate (14) is attached to the top of the filter screen plate one (7), the bottom of the filter screen plate one (7) is slidingly installed with a filter screen plate two (8), the treatment box (2) is installed with a limiting assembly for limiting the filter screen plate two (8).

2. The raw material processing device for polyester film production according to claim 1, characterized by The mesh of the filter screen plate one (7) and the mesh of the filter screen plate two (8) are in one-to-one correspondence.

3. The raw material processing device for polyester film production according to claim 1, characterized by The structure for reciprocating the sliding support (13) left and right includes a sliding groove plate (15) fixedly installed on one side of the sliding support (13), a second closed box (16) is fixedly installed on one side of the treatment box (2) near the position of the sliding groove plate (15), a rotating plate (17) is rotatably installed in the second closed box (16), and the end of the rotating plate (17) away from the rotating shaft is slidingly connected with the sliding groove plate (15).

4. The raw material processing device for polyester film production according to claim 1, characterized by The limiting assembly includes a first closed box (9) fixedly installed on one side of the treatment box (2), a sliding rod (10) is slidingly installed on one side of the first closed box (9), a threaded rod (11) is threadedly connected with the position of the one side of the treatment box (2) corresponding to the sliding rod (10), one end of the threaded rod (11) extending into the treatment box (2) is rotatably connected with one side of the filter screen plate two (8), and the other end of the threaded rod (11) is fixedly connected with one end of the sliding rod (10) extending into the first closed box (9).

5. The raw material processing device for polyester film production according to claim 4, wherein The end of the sliding rod (10) away from the threaded rod (11) is fixedly installed with a knob (12).

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