Paper pulp molding raw material filtering and screening device

Abstract

The utility model belongs to the technical field of pulp molding raw material filtering and screening, and particularly relates to a pulp molding raw material filtering and screening device which comprises a supporting frame and a filtering and screening box, a vibration mechanism is installed between the supporting frame and the filtering and screening box and used for shaking of the filtering and screening box, and an insertion rod is inserted into one end of the filtering and screening box and connected with the supporting frame. A scraping plate is mounted at one end of the inserting rod and is used for moving and cleaning the inner bottom wall of the filtering and screening box; through the arrangement of the anti-rotation assembly and the reciprocating component, the cleaning effect of the inner bottom wall of the filtering and screening box and the moving stability of the scraping plate are remarkably improved. In the anti-rotation assembly, a fixing block and a limiting insertion rod are in close fit through a limiting insertion hole, a first spring provides elastic resistance, when the scraper tends to rotate due to external force, the scraper can be effectively prevented from rotating, it is ensured that the scraper is tightly attached to the inner bottom wall of the filtering and screening box all the time for cleaning, and the problem that cleaning is not thorough due to rotation of the scraper is solved.

Description

Technical Field

[0001] This utility model relates to the field of pulp molding raw material filtration and screening technology, and in particular to a pulp molding raw material filtration and screening device. Background Technology

[0002] In the production process of pulp molded products, the filtration and screening of pulp molding raw materials is a crucial step, directly affecting the quality and performance of subsequent products. Currently, while pulp molding raw material filtration and screening devices on the market can meet basic filtration and screening requirements to a certain extent, many problems still need to be solved in actual operation. These problems seriously affect production efficiency and product quality, increasing production costs for enterprises.

[0003] In existing filtration and screening devices, impurities and unfiltered raw materials tend to accumulate on the bottom wall of the filter box during long-term use. These accumulations not only occupy the effective space of the filter box and reduce filtration efficiency, but may also affect the uniform distribution of pulp molding materials, leading to inconsistent product quality. However, existing cleaning devices often have design flaws and cannot effectively solve this problem.

[0004] On the one hand, the scrapers of some cleaning devices are prone to rotation during movement, resulting in reduced adhesion between the scraper and the bottom wall of the filter box, making it impossible to completely remove accumulated material. This leads to incomplete cleaning, leaving impurities and raw material residues, requiring frequent shutdowns for manual cleaning, significantly reducing production efficiency. On the other hand, some cleaning devices have poorly designed moving parts, with unstable reciprocating motion of the scraper, which can easily cause impact and wear to other parts of the device, shortening its service life and increasing the company's equipment maintenance and replacement costs. Therefore, we provide a pulp molding raw material filtration and screening device. Utility Model Content

[0005] To address the aforementioned problems, this invention proposes a pulp molding raw material filtration and screening device, which more accurately solves the problems mentioned in the background art.

[0006] This utility model is achieved through the following technical solution:

[0007] The utility model proposes a pulp molding raw material filtering and screening device, including a support frame and a filtering and screening box. A vibration mechanism is installed between the support frame and the filtering and screening box for shaking the filtering and screening box. A plug rod is inserted into one end of the filtering and screening box, and a scraper is installed at one end of the plug rod for moving and cleaning the inner bottom wall of the filtering and screening box.

[0008] The scraper has an opening groove on its surface. A shaft is fixedly installed at the end of the plug rod, and the shaft is rotatably connected to the end wall of the opening groove through a bearing. An anti-rotation component is connected between the plug rod and the scraper to ensure the stability of the scraper when it moves.

[0009] A reciprocating component is connected between the filter box and the plug rod to enable the scraper to move back and forth for cleaning.

[0010] Furthermore, the anti-rotation assembly includes a fixing block fixedly installed on the periphery of the end of the plug rod and a sliding groove formed on the surface of the scraper. The end of the fixing block is provided with a limit insertion hole, and a limit plug is inserted into the end wall of the sliding groove. A limit slide is slidably connected to the inner wall of the sliding groove, and the surface of the limit slide is fixedly connected to one end of the limit plug. A spring is sleeved around the periphery of the limit plug.

[0011] Furthermore, the reciprocating component includes a welding block fixedly installed on the upper surface of the filter screening box and a V-shaped plate fixedly installed on the end of the insertion rod. A insertion rod is inserted into the surface of the welding block. One end of the insertion rod is fixedly connected to a limit plate, and the other end of the insertion rod is fixedly connected to the surface of the V-shaped plate. A spring is sleeved around the insertion rod, and a pull handle is fixedly connected to the surface of the V-shaped plate.

[0012] Furthermore, the fixing block is located inside the opening groove, and the other end of the limiting rod is inserted into the inner wall of the limiting hole, and the inner diameter of the limiting hole is compatible with the outer diameter of the limiting rod.

[0013] Furthermore, one end of the spring is fixedly connected to the end wall of the sliding groove, and the other end of the spring is fixedly connected to the surface of the limiting slide plate.

[0014] Furthermore, one end of the second spring is fixedly connected to the surface of the limiting plate, and the other end of the second spring is fixedly connected to the surface of the welding block.

[0015] The beneficial effects of this utility model are:

[0016] This invention significantly improves the cleaning effect of the bottom wall of the filter box and the stability of the scraper movement by setting up an anti-rotation component and a reciprocating component. In the anti-rotation component, the fixing block and the limiting rod are tightly engaged through the limiting hole, and the spring provides elastic resistance. When the scraper is subjected to external force and has a tendency to rotate, it can effectively prevent its rotation, ensuring that the scraper is always in close contact with the bottom wall of the filter box for cleaning. This avoids the problem of incomplete cleaning caused by scraper rotation, effectively prevents the accumulation of impurities, and improves the filtration efficiency and quality.

[0017] This invention utilizes the elasticity of spring two, along with the pulling of a handle, to move the scraper back and forth. This design ensures smooth and reliable reciprocating motion of the scraper, enabling comprehensive and thorough cleaning of the bottom wall of the filter box. Simultaneously, the stable reciprocating motion reduces impact and wear on other components caused by unstable movement, extending the device's lifespan, ensuring continuous and efficient operation, and lowering maintenance and replacement costs for businesses. Attached Figure Description

[0018] Figure 1 This is a three-dimensional first view of one embodiment of the present utility model;

[0019] Figure 2 This is a two-dimensional second view of one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure after the scraper is removed in one embodiment of the present invention;

[0021] Figure 4 This is a partial structural diagram of the scraper in one embodiment of the present invention;

[0022] Figure 5 This is one embodiment of the present utility model. Figure 3 Enlarged view of the structure at point A in the middle.

[0023] In the diagram: 1. Support frame; 2. Filter box; 3. Vibration mechanism; 4. Connecting rod; 5. Scraper; 6. Opening groove; 7. Shaft rod; 8. Fixing block; 9. Limiting insertion hole; 10. Sliding groove; 11. Limiting rod; 12. Limiting slide plate; 13. Spring 1; 14. Welding block; 15. Insertion rod; 16. Limiting plate; 17. Spring 2; 18. V-shaped plate; 19. Pull handle. Detailed Implementation

[0024] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.

[0025] Example

[0026] like Figures 1-5As shown, an embodiment of this utility model provides a pulp molding material filtering and screening device, which mainly consists of a support frame 1 and a filtering and screening box 2. A vibration mechanism 3 is installed between the support frame 1 and the filtering and screening box 2. The vibration mechanism 3 can be a common vibration motor or an eccentric wheel vibration device. By starting the vibration mechanism 3, the filtering and screening box 2 can be driven to shake, thereby realizing the filtering and screening of pulp molding materials. A connector rod 4 is inserted into one end of the filtering and screening box 2, and a scraper 5 is installed at one end of the connector rod 4. The scraper 5 is shaped to fit the inner bottom wall of the filter box 2. When the connecting rod 4 moves the scraper 5, the scraper 5 can adhere to the inner bottom wall of the filter box 2, scraping away impurities or unscreened raw materials accumulated at the bottom, thus cleaning the inner bottom wall of the filter box 2. The scraper 5 has an opening groove 6 on its surface, and a rotating shaft 7 is fixedly installed at the end of the connecting rod 4. The rotating shaft 7 is rotatably connected to the end wall of the opening groove 6 via a bearing, allowing relative rotation between the connecting rod 4 and the scraper 5, facilitating the scraper 5 to adapt to different angles and positions during movement. Simultaneously, an anti-rotation component is connected between the connecting rod 4 and the scraper 5 to ensure the scraper 5 remains stable during movement and does not rotate arbitrarily, ensuring effective cleaning. A reciprocating component is connected between the filter box 2 and the connecting rod 4. By operating the reciprocating component, the scraper 5 can move back and forth within the filter box 2, thereby performing a comprehensive cleaning of the inner bottom wall of the filter box 2.

[0027] In the pulp molding raw material filtration and screening process, the vibration mechanism 3 drives the filter screening box 2 to shake for screening, while the reciprocating component drives the scraper 5 to move back and forth to clean the inner bottom wall of the filter screening box 2. The anti-rotation component ensures that the scraper 5 moves stably, effectively preventing the accumulation of impurities, improving the filtration and screening efficiency and quality, and ensuring the continuous and stable operation of the device.

[0028] Furthermore, the anti-rotation assembly specifically includes a fixing block 8 fixedly installed on the periphery of the end of the plug rod 4 and a sliding groove 10 formed on the surface of the scraper 5. The fixing block 8 is located inside the opening groove 6, providing a basis for subsequent limiting connection; a limiting insertion hole 9 is formed at the end of the fixing block 8, and a limiting plug rod 11 is inserted into the end wall of the sliding groove 10. A limiting slide plate 12 is slidably connected to the inner wall of the sliding groove 10, and the surface of the limiting slide plate 12 is fixedly connected to one end of the limiting plug rod 11, so that the limiting plug rod 11 can slide within the sliding groove 10. A spring 13 is sleeved around the limiting plug rod 11. The spring 13 is elastic, can deform under force, and return to its original shape after the external force disappears.

[0029] When the scraper 5 is subjected to external force and tends to rotate, the fixing block 8 will press the limiting rod 11, causing the limiting slide plate 12 to slide within the sliding groove 10, and the spring 13 will be compressed. Due to the elasticity of the spring 13, a reverse force will be generated, preventing the limiting rod 11 from moving, thereby limiting the rotation of the fixing block 8, thus ensuring that the scraper 5 will not rotate arbitrarily when moving, improving the stability of the scraper 5's movement, and ensuring the cleaning effect.

[0030] Furthermore, the reciprocating component specifically includes a welding block 14 fixedly mounted on the upper surface of the filter screening box 2 and a V-shaped plate 18 fixedly mounted on the end of the insertion rod 4. An insertion / extraction rod 15 is inserted into the surface of the welding block 14. One end of the insertion / extraction rod 15 is fixedly connected to a limiting disc 16, which prevents the insertion / extraction rod 15 from being completely pulled out of the welding block 14. The other end of the insertion / extraction rod 15 is fixedly connected to the surface of the V-shaped plate 18. A second spring 17 is sleeved around the insertion / extraction rod 15. The second spring 17 is elastic, capable of deforming under force and returning to its original shape after the external force disappears. A pull handle 19 is fixedly connected to the surface of the V-shaped plate 18 for easy manual operation by the operator.

[0031] When the scraper 5 needs to be moved, the operator manually pulls the handle 19, which moves the V-shaped plate 18, causing the insertion rod 15 to slide within the welding block 14, stretching the spring 17. When the handle 19 is released, the spring 17 returns to its original state, generating a reverse force that pushes the insertion rod 15 to slide in the opposite direction, causing the V-shaped plate 18 and the insertion rod 4 to move in the opposite direction, thus realizing the back-and-forth movement of the scraper 5 to clean the inner bottom wall of the filter box 2. This reciprocating component has a simple structure, is easy to operate, and can effectively realize the reciprocating motion of the scraper 5.

[0032] Furthermore, the fixing block 8 is located inside the opening slot 6, providing space for the fitting of the limiting rod 11 and the limiting hole 9. The other end of the limiting rod 11 is inserted into the inner wall of the limiting hole 9, and the inner diameter of the limiting hole 9 is matched with the outer diameter of the limiting rod 11, so that the limiting rod 11 can be tightly inserted into the limiting hole 9 to achieve the limiting function of the fixing block 8.

[0033] When the scraper 5 is subjected to external force and tends to rotate, the fixing block 8 will squeeze the limiting rod 11. However, due to the tight fit between the limiting hole 9 and the limiting rod 11, the limiting rod 11 is difficult to pull out from the limiting hole 9, thereby preventing the fixing block 8 from rotating, ensuring the stability of the scraper 5 when moving, and preventing the scraper 5 from rotating randomly and affecting the cleaning effect.

[0034] Furthermore, one end of spring 13 is fixedly connected to the end wall of the sliding groove 10, and the other end is fixedly connected to the surface of the limiting slide plate 12. When the scraper 5 is subjected to external force and tends to rotate, the fixing block 8 presses the limiting rod 11, causing the limiting slide plate 12 to slide within the sliding groove 10, and spring 13 is compressed.

[0035] When spring 13 is compressed, it generates an elastic force that hinders the sliding of the limiting slide plate 12, thereby limiting the movement of the limiting rod 11, preventing the fixed block 8 from rotating, and ensuring the stability of the scraper 5 during movement. When the external force disappears, spring 13 returns to its original state, pushing the limiting slide plate 12 and the limiting rod 11 back to their original positions, restoring the device to its initial state and preparing it for the next anti-rotation action.

[0036] Furthermore, one end of the second spring 17 is fixedly connected to the surface of the limiting plate 16, and the other end is fixedly connected to the surface of the welding block 14. When the operator pulls the pull handle 19, it drives the V-shaped plate 18 to move, thereby causing the insertion rod 15 to slide in the welding block 14, and the second spring 17 is stretched.

[0037] When the second spring 17 is stretched, it generates an elastic force. This elastic force comes into play when the handle 19 is released, pushing the insertion rod 15 to slide in the opposite direction, which in turn causes the V-shaped plate 18 and the insertion rod 4 to move in the opposite direction, thereby realizing the back-and-forth movement of the scraper 5. The elasticity of the second spring 17 makes the reciprocating motion of the scraper 5 more stable and reliable, improving the efficiency and quality of cleaning operations.

[0038] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pulp molding raw material filtering and screening device, comprising a support frame (1) and a filtering and screening box (2), wherein a vibration mechanism (3) is installed between the support frame (1) and the filtering and screening box (2) for shaking the filtering and screening box (2), characterized in that, One end of the filter screening box (2) is provided with a plug rod (4), and one end of the plug rod (4) is provided with a scraper (5) for moving and cleaning the inner bottom wall of the filter screening box (2). The scraper (5) has an opening groove (6) on its surface. The end of the plug rod (4) is fixedly installed with a shaft rod (7), and the shaft rod (7) is rotatably connected to the end wall of the opening groove (6) through a bearing. An anti-rotation component is connected between the plug rod (4) and the scraper (5) for the stability of the scraper (5) when it moves. A reciprocating component is connected between the filter box (2) and the plug rod (4) to enable the scraper (5) to move back and forth for cleaning.

2. The pulp molding raw material filtering and screening device according to claim 1, characterized in that, The anti-rotation assembly includes a fixing block (8) fixedly installed on the periphery of the end of the plug rod (4) and a sliding groove (10) opened on the surface of the scraper (5). The end of the fixing block (8) is provided with a limiting insertion hole (9). A limiting plug rod (11) is inserted into the end wall of the sliding groove (10). A limiting slide plate (12) is slidably connected to the inner wall of the sliding groove (10), and the surface of the limiting slide plate (12) is fixedly connected to one end of the limiting plug rod (11). A spring (13) is sleeved around the periphery of the limiting plug rod (11).

3. The pulp molding raw material filtering and screening device according to claim 1, characterized in that, The reciprocating component includes a welding block (14) fixedly installed on the upper surface of the filter box (2) and a V-shaped plate (18) fixedly installed on the end of the plug-in rod (4). A plug-in rod (15) is inserted into the surface of the welding block (14). One end of the plug-in rod (15) is fixedly connected to a limit plate (16), and the other end of the plug-in rod (15) is fixedly connected to the surface of the V-shaped plate (18). A spring (17) is sleeved around the plug-in rod (15), and a pull handle (19) is fixedly connected to the surface of the V-shaped plate (18).

4. The pulp molding raw material filtering and screening device according to claim 2, characterized in that, The fixing block (8) is located inside the opening groove (6), and the other end of the limiting rod (11) is inserted into the inner wall of the limiting hole (9), and the inner diameter of the limiting hole (9) is compatible with the outer diameter of the limiting rod (11).

5. The pulp molding raw material filtering and screening device according to claim 2, characterized in that, One end of the spring (13) is fixedly connected to the end wall of the sliding groove (10), and the other end of the spring (13) is fixedly connected to the surface of the limiting slide plate (12).

6. The pulp molding raw material filtering and screening device according to claim 3, characterized in that, One end of the second spring (17) is fixedly connected to the surface of the limiting plate (16), and the other end of the second spring (17) is fixedly connected to the surface of the welding block (14).

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