Plastic extruder provided with filter screen changing mechanism

Abstract

The utility model belongs to the technical field of plastic extruder, especially a plastic extruder with filter screen replacement mechanism, present the following scheme, it includes plastic extrusion equipment, the right side intercommunication of plastic extrusion equipment has feeding pipe, the one end intercommunication of feeding pipe away from plastic extrusion equipment has filter box, the left side of filter box is fixedly connected with plastic extrusion equipment, the bottom intercommunication of filter box has the down -spout, this plastic extruder with filter screen replacement mechanism still includes: filter mechanism, the filter mechanism is located in the inner chamber of filter box, and filter mechanism is used for filtering the impurity in plastic, mounting mechanism, in the utility model: through the cooperation of filter mechanism and mounting mechanism, the problem that maintenance is difficult after the filter part is blocked is solved, the convenience of maintenance operation is improved significantly, maintenance personnel can contact filter part without complex tools or long time shutdown, the continuity of production is guaranteed, and the overall operation efficiency of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic extruder technology, and in particular to a plastic extruder equipped with a filter screen replacement mechanism. Background Technology

[0002] A plastic extruder is a device that heats and melts plastic raw materials and extrudes them through a mold. It is widely used in the plastics processing industry, especially in the production of plastic films, pipes, profiles, sheets, cable sheaths and other products.

[0003] Replacing the filter screen in a traditional plastic extruder is difficult, requiring deep inside the equipment for operation. The limited space makes maintenance inconvenient, and the cumbersome and time-consuming disassembly process leads to frequent downtime and reduced efficiency. Therefore, this utility model proposes a plastic extruder equipped with a filter screen replacement mechanism to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to solve the problems of difficult filter replacement in traditional plastic extruders, which require deep inside the equipment for operation, resulting in narrow space, inconvenient maintenance, cumbersome disassembly steps, and long time consumption, leading to frequent downtime and reduced efficiency. Therefore, this invention proposes a plastic extruder with a filter replacement mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic extruder equipped with a filter screen replacement mechanism includes a plastic extrusion device. A feed pipe is connected to the right side of the plastic extrusion device, and a filter box is connected to the end of the feed pipe away from the plastic extrusion device. The left side of the filter box is fixedly connected to the plastic extrusion device, and a discharge pipe is connected to the bottom of the filter box. The plastic extruder with the filter screen replacement mechanism also includes:

[0007] A filtration mechanism located inside the filter box, the filtration mechanism being used to filter impurities in the plastic;

[0008] The installation mechanisms are located on the front and rear sides of the filter box and are used for quick maintenance of the filter mechanism.

[0009] As a preferred embodiment of this utility model, the filtration mechanism includes: a mounting frame, a filter plate, and a positioning plate;

[0010] The mounting frame is slidably positioned inside the filter box, and the filter plate is fixedly installed inside the mounting frame. The right side of the mounting frame passes through the filter box and is fixedly connected to the positioning plate.

[0011] As a preferred embodiment of this utility model, the installation mechanism includes: a positioning box, two insert blocks, two pressure plates, two inclined blocks, two vertical plates, two first springs, two guide plates, a transmission box, a limiting rod, a limiting sleeve, a second spring, a connecting plate, an inclined plate, and a push plate;

[0012] The front and rear sides of the filter box are fixedly connected to the positioning box. The front and rear sides of the left side of the positioning plate are fixedly connected to the insertion block. The left side of the insertion block extends through the inner cavity of the positioning box. An insertion port is opened at the top of the insertion block. The pressure plate is slidably disposed in the inner cavity of the positioning box and located at the top of the insertion block. The bottom of the pressure plate is fixedly connected to the inclined block. The top of the inclined block extends through the inner cavity of the insertion port. The top of the pressure plate is fixedly connected to the vertical plate. The top of the pressure plate, located on the surface of the vertical plate, is fixedly connected to the first spring. The tops of the two vertical plates on opposite sides are fixedly connected to the guide plate. The transmission box is fixedly... The device is fixedly installed on the right side of the top of the filter box. The top of the inner cavity of the transmission box is fixedly connected to the limiting rod, and the bottom of the limiting rod is fixedly connected to the top of the filter box. The limiting sleeve is slidably sleeved on the surface of the limiting rod. The second spring is movably sleeved on the surface of the limiting rod and located at the bottom of the limiting sleeve. The front and rear sides of the limiting sleeve are fixedly connected to the connecting plate. The end of the connecting plate away from the limiting sleeve passes through the transmission box and is fixedly connected to the inclined plate. The bottom of the inclined plate is slidably connected to the top of the filter box. The right side of the limiting sleeve is fixedly connected to the push plate, and the right side of the push plate passes through the transmission box.

[0013] As a preferred embodiment of this utility model, a positioning port is provided on the right side of the filter box, and the positioning port cooperates with the mounting frame.

[0014] As a preferred embodiment of this utility model, the top and bottom of the left side of the insert block are chamfered, and the chamfers are adapted to the beveled block.

[0015] As a preferred embodiment of this utility model, the transmission box has limit ports on both the front and rear sides, which are adapted to the connecting plate. The right side of the transmission box has a guide port, which is adapted to the push plate.

[0016] As a preferred embodiment of this utility model, a slide rail is provided at the bottom of the inclined plate, and slide grooves are provided on the front and rear sides of the top of the filter box, with the slide rail and slide grooves being compatible. Beneficial effects

[0017] By setting up a filter mechanism that allows the filter plate to be easily removed from the working position, it is easy to clean or replace it. This solves the problem of difficult maintenance after the filter components are clogged, significantly improves the convenience of maintenance operations, and allows maintenance personnel to access the filter components without complicated tools or long downtime, ensuring the continuity of production and improving the overall operating efficiency of the equipment.

[0018] The push plate moves the limit sleeve downward, which in turn moves the connecting plate. Then the connecting plate moves the inclined plate, which pushes the guide plate and the vertical plate upward. The vertical plate moves the push plate and the inclined block. Then the inclined block moves out of the socket, which unlocks the positioning plate. Then the worker pulls the installation frame and the filter plate out of the filter box. This makes the disassembly of the filter mechanism simple and direct, effectively overcoming the shortcomings of the traditional structure's cumbersome and time-consuming disassembly steps. It greatly shortens the maintenance time and improves the convenience of maintenance operations.

[0019] In this utility model, the combined use of the filtration mechanism and the installation mechanism solves the problem of difficult maintenance after the filter components become clogged, significantly improving the convenience of maintenance operations. Maintenance personnel can access the filter components without complicated tools or long downtime, ensuring the continuity of production and improving the overall operating efficiency of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a right view of the plastic extrusion equipment and filter box of this utility model;

[0022] Figure 3 For the present utility model Figure 3 Enlarged view of A in the middle;

[0023] Figure 4 For the present utility model Figure 3 Enlarged view of B in the middle;

[0024] Figure 5 This is a cross-sectional view of the positioning box and insert plate of this utility model.

[0025] In the diagram: 1. Plastic extrusion equipment; 2. Feed pipe; 3. Filter box; 4. Discharge pipe; 5. Mounting frame; 6. Filter plate; 7. Positioning plate; 8. Positioning box; 9. Insert block; 10. Pressure plate; 11. Inclined block; 12. Vertical plate; 13. First spring; 14. Guide plate; 15. Transmission box; 16. Limiting rod; 17. Limiting sleeve; 18. Second spring; 19. Connecting plate; 20. Inclined plate; 21. Push plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1

[0027] Reference Figures 1-5A plastic extruder equipped with a filter screen replacement mechanism includes a plastic extrusion device 1, a feed pipe 2 connected to the right side of the plastic extrusion device 1, a filter box 3 connected to the end of the feed pipe 2 away from the plastic extrusion device 1, a filter box 3 fixedly connected to the left side of the filter box 3, and a discharge pipe 4 connected to the bottom of the filter box 3. The plastic extruder equipped with the filter screen replacement mechanism also includes:

[0028] The filter mechanism is located inside the filter box 3 and is used to filter impurities in the plastic.

[0029] The installation mechanisms are located on the front and rear sides of the filter box 3, and are used for quick maintenance of the filter mechanism.

[0030] The filtration mechanism includes: mounting frame 5, filter plate 6, and positioning plate 7;

[0031] The mounting frame 5 is slidably disposed within the inner cavity of the filter box 3, and the filter plate 6 is fixedly installed within the inner cavity of the mounting frame 5. The right side of the mounting frame 5 passes through the filter box 3 and is fixedly connected to the positioning plate 7. By setting a filter mechanism that can slide out of the filter box 3, the filter plate 6 can be easily removed from the working position, making it easy to clean or replace. This solves the problem of difficult maintenance after the filter components are clogged, significantly improves the convenience of maintenance operations, and allows maintenance personnel to access the filter components without complicated tools or long downtime, ensuring the continuity of production and improving the overall operating efficiency of the equipment.

[0032] The installation mechanism includes: positioning box 8, two insert blocks 9, two pressure plates 10, two inclined blocks 11, two vertical plates 12, two first springs 13, two guide plates 14, transmission box 15, limiting rod 16, limiting sleeve 17, second spring 18, connecting plate 19, inclined plate 20, and push plate 21.

[0033] The front and rear sides of the filter box 3 are fixedly connected to the positioning box 8. The front and rear sides of the left side of the positioning plate 7 are fixedly connected to the insertion block 9. The left side of the insertion block 9 extends through the inner cavity of the positioning box 8. An insertion port is provided at the top of the insertion block 9. The pressure plate 10 is slidably disposed in the inner cavity of the positioning box 8 and located at the top of the insertion block 9. The bottom of the pressure plate 10 is fixedly connected to the inclined block 11. The top of the inclined block 11 extends through the inner cavity of the insertion port. The top of the pressure plate 10 is fixedly connected to the vertical plate 12. The top of the pressure plate 10 and located on the surface of the vertical plate 12 is fixedly connected to the first spring 13. The tops of the two vertical plates 12 on opposite sides are fixedly connected to the guide plate 14. The transmission box 15 is fixedly installed on the right side of the top of the filter box 3. The top of the inner cavity of the transmission box 15 is fixedly connected to the limiting rod 16. The bottom of the limiting rod 16 is fixedly connected to the top of the filter box 3. The limiting sleeve 17 is slidably sleeved on the surface of the limiting rod 16. The second spring 18 is movably sleeved on the surface of the limiting rod 16 and located at the limiting position. The bottom of sleeve 17, the front and rear sides of the limiting sleeve 17 are fixedly connected to the connecting plate 19. The end of the connecting plate 19 away from the limiting sleeve 17 passes through the transmission box 15 and is fixedly connected to the inclined plate 20. The bottom of the inclined plate 20 is slidably connected to the top of the filter box 3. The right side of the limiting sleeve 17 is fixedly connected to the push plate 21. The right side of the push plate 21 passes through the transmission box 15. Pushing the push plate 21 causes the limiting sleeve 17 to move down, causing the connecting plate 19 to move. Then the connecting plate 19 causes the inclined plate 20 to move. The inclined plate 20 pushes the guide plate 14 and the vertical plate 12 to move up. The vertical plate 12 causes the push plate 21 and the inclined block 11 to move. Then the inclined block 11 moves out of the socket, realizing the unlocking of the positioning plate 7. Then the worker pulls the mounting frame 5 together with the filter plate 6 out of the filter box 3, making the disassembly of the filter mechanism simple and direct, effectively overcoming the disadvantages of the traditional structure disassembly steps being cumbersome and time-consuming, greatly shortening the maintenance time required, and improving the convenience of maintenance operations.

[0034] To facilitate the insertion of the mounting frame 5 into the filter box 3, a positioning port is provided on the right side of the filter box 3. The positioning port cooperates with the mounting frame 5, thereby facilitating the insertion of the mounting frame 5 into the filter box 3.

[0035] In order to ensure that the insert 9 and the inclined block 11 come into contact and to prevent the transport from getting stuck, the top and bottom of the left side of the insert 9 are chamfered. The chamfers are adapted to the inclined block 11, so that the insert 9 and the inclined block 11 come into contact and to prevent the transport from getting stuck.

[0036] To facilitate the movement of the inclined plate 20 driven by the connecting plate 19, limit ports are provided on the front and rear sides of the transmission box 15. The limit ports are adapted to the connecting plate 19. A guide port is provided on the right side of the transmission box 15. The guide port is adapted to the push plate 21, thereby facilitating the movement of the inclined plate 20 driven by the connecting plate 19.

[0037] In order to limit the movement path of the inclined plate 20, a slide rail is provided at the bottom of the inclined plate 20, and a slide groove is provided on the front and rear sides of the top of the filter box 3. The slide rail and the slide groove are matched to limit the movement path of the inclined plate 20.

[0038] It should be noted that all electrical equipment used in this application is powered by an external power source. The specific type of motor used should be selected by those skilled in the art. Furthermore, all information regarding motors is prior art and will not be elaborated upon in this solution.

[0039] The working principle of this utility model is as follows: In use, the operator pushes the push plate 21, causing the limiting sleeve 17 to move downwards and the connecting plate 19 to move. Then, the connecting plate 19 moves the inclined plate 20, which pushes the guide plate 14 and the vertical plate 12 upwards. The vertical plate 12 moves the push plate 21 and the inclined block 11. Then, the inclined block 11 moves out of the socket, unlocking the positioning plate 7. Then, the worker pulls the mounting frame 5 along with the filter plate 6 out of the filter box 3, thus completing the disassembly. After replacing the new filter plate 6, the mounting frame 5 is aligned with the filter box 3. When the positioning port of box 3 is pushed to the left, the positioning plate 7 drives the insert block 9 to insert into the positioning box 8 to the left. The top of the insert block 9 contacts the inclined surface at the bottom of the inclined block 11. Under the action of the pushing force, the chamfer of the insert block 9 squeezes the inclined block 11, forcing the inclined block 11 and the pressure plate 10 to move upward and compress the first spring 13 again. When the insert block 9 is fully inserted, the insertion port at its top is exactly below the inclined block 11. At this time, the first spring 13 releases its elastic force, pushing the pressure plate 10 and the inclined block 11 to return to their original position downward. The inclined block 11 is inserted into the insertion port, firmly locking the insert block 9.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic extruder equipped with a filter screen replacement mechanism, comprising a plastic extrusion device (1), a feed pipe (2) connected to the right side of the plastic extrusion device (1), a filter box (3) connected to the end of the feed pipe (2) away from the plastic extrusion device (1), a filter box (3) fixedly connected to the left side of the filter box (3) and a discharge pipe (4) connected to the bottom of the filter box (3), characterized in that, The plastic extruder equipped with a filter replacement mechanism also includes: The filter mechanism is located in the inner cavity of the filter box (3) and is used to filter impurities in the plastic. The installation mechanisms are located on the front and rear sides of the filter box (3) and are used for quick maintenance of the filter mechanism.

2. A plastic extruder provided with a filter screen replacement mechanism according to claim 1, characterized in that, The filtration mechanism includes: a mounting frame (5), a filter plate (6), and a positioning plate (7); The mounting frame (5) is slidably set in the inner cavity of the filter box (3), and the filter plate (6) is fixedly installed in the inner cavity of the mounting frame (5). The right side of the mounting frame (5) passes through the filter box (3) and is fixedly connected to the positioning plate (7).

3. The plastic extruder provided with a filter screen replacement mechanism according to claim 1, characterized in that, The installation mechanism includes: a positioning box (8), two insert blocks (9), two pressure plates (10), two inclined blocks (11), two vertical plates (12), two first springs (13), two guide plates (14), a transmission box (15), a limiting rod (16), a limiting sleeve (17), a second spring (18), a connecting plate (19), an inclined plate (20), and a push plate (21). The front and rear sides of the filter box (3) are fixedly connected to the positioning box (8). The front and rear sides of the left side of the positioning plate (7) are fixedly connected to the insert block (9). The left side of the insert block (9) extends through the inner cavity of the positioning box (8). The top of the insert block (9) has an insertion port. The pressure plate (10) is slidably disposed in the inner cavity of the positioning box (8) and located on the top of the insert block (9). The bottom of the pressure plate (10) is fixedly connected to the inclined block (11). The top of the inclined block (11) extends through the inner cavity of the insertion port. The top of the pressure plate (10) is fixedly connected to the vertical plate (12). The top of the pressure plate (10) and located on the surface of the vertical plate (12) is fixedly connected to the first spring (13). The tops of the two vertical plates (12) on opposite sides are fixedly connected to the guide plate (14). The transmission box (15) is fixedly installed in the passage. The top right side of the filter box (3) is fixedly connected to the top of the inner cavity of the transmission box (15) and the limiting rod (16). The bottom of the limiting rod (16) is fixedly connected to the top of the filter box (3). The limiting sleeve (17) is slidably sleeved on the surface of the limiting rod (16). The second spring (18) is movably sleeved on the surface of the limiting rod (16) and located at the bottom of the limiting sleeve (17). The front and rear sides of the limiting sleeve (17) are fixedly connected to the connecting plate (19). The end of the connecting plate (19) away from the limiting sleeve (17) passes through the transmission box (15) and is fixedly connected to the inclined plate (20). The bottom of the inclined plate (20) is slidably connected to the top of the filter box (3). The right side of the limiting sleeve (17) is fixedly connected to the push plate (21). The right side of the push plate (21) passes through the transmission box (15).

4. The plastic extruder provided with a filter screen replacement mechanism according to claim 2, wherein The filter box (3) has a positioning port on the right side, which is matched with the mounting frame (5).

5. The plastic extruder provided with a filter screen replacement mechanism according to claim 3, wherein The top and bottom of the left side of the insert (9) are chamfered, and the chamfers are compatible with the beveled block (11).

6. A plastic extruder provided with a filter screen replacement mechanism according to claim 3, wherein Limiting ports are provided on the front and rear sides of the transmission box (15), and the limiting ports are adapted to the connecting plate (19). A guide port is provided on the right side of the transmission box (15), and the guide port is adapted to the push plate (21).

7. A plastic extruder provided with a filter screen replacement mechanism according to claim 3, wherein The bottom of the inclined plate (20) is provided with a slide rail, and the front and rear sides of the top of the filter box (3) are provided with slide grooves, and the slide rail and slide groove are matched.

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