Online switching equipment for white oil filter element of extruder

Abstract

The utility model relates to the technical field of online switching of filter elements, and discloses online switching equipment for white oil filter elements of an extruder, which comprises a connecting column, a connecting component is arranged on the outer wall of the connecting column, the connecting component is used for connecting other pipelines, a pipeline component is arranged on the outer wall of the connecting column, and the pipeline component is used for connecting other pipelines. And the pipeline assembly is used for controlling the problem of air in the filtering tank and comprises a first connecting pipe, one end of the first connecting pipe is fixedly connected to the outer wall of the connecting column, the filtering tank is fixedly connected to one end of the first connecting pipe, and a bypass valve is fixedly connected to one end of the filtering tank. According to the utility model, air in the filtering tank is firstly exhausted through the exhaust port, exhausted through the T-shaped connecting pipe, exhausted through opening the bypass valve, and replaced by closing the first exhaust control valve, so that the effect of switching the filter elements on line is achieved, the problem that the product quality is influenced by adding a filter screen traditionally is solved, and the stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of online filter element switching technology, and in particular to an online switching device for extruder white oil filter elements. Background Technology

[0002] Extruder white oil filter elements are key components of the extruder lubrication system. They have a multi-layered structure, including an outer layer of metal mesh and an inner layer of fiber or filter paper, and may also include an activated carbon layer, with diverse materials. During operation, white oil undergoes preliminary filtration through the outer layer and then impurities are intercepted by the inner layer. The continuous operation of the extruder places extremely high demands on the stability of the lubrication system. During production, the white oil filter element gradually becomes clogged over time and with continued filtration, leading to reduced white oil flow and pressure fluctuations, affecting the normal lubrication of the equipment. Therefore, it is necessary to use an online white oil filter switching device for faster and more stable operation.

[0003] The online white oil filter element switching device for extruders mainly includes filter element assemblies, switching mechanisms, drive units, valves, and other structures. The filter element assembly contains filter elements used to filter impurities in the white oil. The switching mechanism enables online replacement of the filter elements, such as a rotary switching frame. The drive unit provides power for the switching, such as a motor. Valves include inlet and outlet valves, controlling the flow direction of the white oil. Supporting components include fixing rings, uprights, and crossbars. A pressure monitoring device monitors the pressure, and the control system controls the actions of each component based on the signals, ensuring timely filter element switching during extruder operation, guaranteeing normal equipment operation and product quality.

[0004] Traditionally, when replacing extruder white oil filters, the white oil is heated and then pumped into the extruder by a three-plunger pump. Since the white oil needs to be recycled, purified, and decolorized after use, clay is used in these processes, leaving residual particulate matter. While other companies use brand-new white oil or add filtration devices during pipeline transport, the lack of filtration at the point where the three-plunger pump enters the extrusion system easily leads to fine particles entering the extruder system. This can cause a rapid increase in extrusion system pressure, ultimately resulting in defective products. Therefore, an online white oil filter switching device for extruders is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an online switching device for extruder white oil filter elements, which aims to improve the problem in the prior art where it is impossible to replace the filter element quickly, resulting in reduced white oil flow, pressure changes, and affecting the normal lubrication of the equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An online switching device for extruder white oil filter cartridges includes a connecting column and a fixing plate. The outer wall of the connecting column is provided with a connecting assembly for connecting other pipes. The outer wall of the connecting column is also provided with a pipe assembly for controlling the air inside the filter tank.

[0008] The piping assembly includes a first connecting pipe, one end of which is fixedly connected to the outer wall of a connecting column. A filter tank is fixedly connected to one end of the first connecting pipe. A bypass valve is fixedly connected to one end of the filter tank. A T-shaped connecting pipe is fixedly connected to the bottom of the filter tank. A first exhaust control valve is fixedly connected to one end of the T-shaped connecting pipe. An outlet pipe is fixedly connected to one end of the first exhaust control valve. An inlet and outlet valve is fixedly connected to one end of the T-shaped connecting pipe. The other end of the inlet and outlet valve is fixedly connected to the outer wall of the connecting column. A filter exhaust pipe is fixedly connected to the other end of the T-shaped connecting pipe. One end of the filter exhaust pipe is fixedly connected to the outer wall of the connecting column.

[0009] As a further description of the above technical solution:

[0010] The connecting assembly includes a flange, one end of which is fixedly connected to the outer wall of the connecting column, a handle is fixedly connected to the side wall of the flange, a screw is threadedly connected to the inside of the flange, and a nut is threadedly connected to the outer wall of the screw.

[0011] As a further description of the above technical solution:

[0012] An L-shaped support plate is fixedly connected to the side wall of the fixed plate, and a first support plate is fixedly connected to the side wall of the L-shaped support plate.

[0013] As a further description of the above technical solution:

[0014] A hydraulic cylinder is fixedly connected inside the first support plate, and a gear column is fixedly connected to the output end of the hydraulic cylinder;

[0015] As a further description of the above technical solution:

[0016] The L-shaped support plate is fixedly connected to a base plate on its side wall, and a first rotating column is rotatably connected to the inner wall of the base plate, and a second rotating column is rotatably connected to the inner wall of the base plate.

[0017] As a further description of the above technical solution:

[0018] A first gear is fixedly connected to the outer wall of the first rotating column, and a second gear is fixedly connected to the outer wall of the second rotating column. The outer wall of the first gear meshes with the outer wall of the gear column, and the first gear meshes with the second gear.

[0019] As a further description of the above technical solution:

[0020] The first rotating column and the second rotating column are both fixedly connected to the outer walls of the clamping plate. The other end of the first rotating column is rotatably connected to the inner wall of the L-shaped support plate, and the other end of the second rotating column is rotatably connected to the inner wall of the L-shaped support plate.

[0021] As a further description of the above technical solution:

[0022] A titanium rod filter element is fixedly connected inside the filter canister, the outer wall of the filter canister is set on the inner wall of the clamping plate, and an exhaust port is fixedly connected to the top of the filter canister.

[0023] This utility model has the following beneficial effects:

[0024] In this invention, the air inside the filter tank is first discharged through the exhaust port, and the filter tank is discharged through the T-shaped connecting pipe. Then, the bypass valve is opened to discharge the air, and then the first exhaust control valve is closed. The filter element inside the filter tank is replaced without affecting the operation of the other filter tank, thus achieving the effect of online filter element switching. This solves the problem that adding a filter screen in the traditional way will affect the quality of the product and improves the stability of the online switching equipment for extruder white oil filter elements.

[0025] In this invention, the output end of the hydraulic cylinder drives the gear column to move. The movement of the gear column causes the first gear meshing with it on the outer wall to rotate. The rotation of the first gear causes the second gear meshing with it to rotate. At the same time, the clamping plate is brought together, achieving the effect of clamping the filter can. This solves the problem of the filter can shaking during operation, which affects the filtration effect and improves the practicality of the online switching equipment for extruder white oil filter elements. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an online switching device for white oil filter elements in an extruder, as proposed in this utility model.

[0027] Figure 2 This is an exploded structural diagram of the L-shaped support plate of an online switching device for extruder white oil filter elements proposed in this utility model;

[0028] Figure 3 This is a cross-sectional structural diagram of the filter tank of an online switching device for white oil filter elements in an extruder, as proposed in this utility model.

[0029] Legend:

[0030] 1. Fixed plate; 2. L-shaped support plate; 3. Filter tank; 4. Outlet pipe; 5. Connecting column; 6. Flange; 7. Handle; 8. Screw; 9. First exhaust control valve; 10. T-shaped connecting pipe; 11. Filter exhaust pipe; 12. Inlet and outlet valves; 13. First connecting pipe; 14. Bypass valve; 15. Hydraulic cylinder; 16. First support plate; 17. Gear column; 18. First gear; 19. Second gear; 20. First rotating column; 21. Second rotating column; 22. Clamping plate; 23. Base plate; 24. Titanium rod filter element; 25. Nut; 26. Exhaust port. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 and Figure 3This utility model provides an embodiment of an online switching device for white oil filter elements in an extruder, comprising a connecting column 5 and a fixing plate 1. The connecting column 5 can be made of high-strength stainless steel, which has good corrosion resistance and mechanical properties, ensuring stable operation of the equipment in complex working environments. A connecting assembly is provided on the outer wall of the connecting column 5, which is used to connect other pipes. A pipe assembly is also provided on the outer wall of the connecting column 5, which is used to control the airflow inside the filter tank 3. The pipe assembly includes a first connecting pipe 13, one end of which is fixedly connected to the outer wall of the connecting column 5, and the other end of which is fixedly connected to the filter tank 3. The filter tank 3 can be made of stainless steel, which is robust and highly corrosion-resistant, effectively protecting the internal filter element and withstanding certain working pressures. A bypass valve 14 is fixedly connected to one end of the filter tank 3. The bypass valve 14 can be a ball valve made of high-quality brass or stainless steel, which has good corrosion resistance and mechanical properties. The filter tank 3 has good sealing and corrosion resistance, and can accurately control the opening and closing of the bypass channel. A T-shaped connecting pipe 10 is fixedly connected to the bottom of the filter tank 3. A first exhaust control valve 9 is fixedly connected to one end of the T-shaped connecting pipe 10. An outlet pipe 4 is fixedly connected to one end of the first exhaust control valve 9. The outlet pipe 4 can be made of stainless steel. An inlet and outlet valve 12 is fixedly connected to one end of the T-shaped connecting pipe 10. The inlet and outlet valve 12 can be made of stainless steel butterfly valve. The butterfly valve has good flow regulation performance and fast opening and closing characteristics. The other end of the inlet and outlet valve 12 is fixedly connected to the outer wall of the connecting column 5. The other end of the T-shaped connecting pipe 10 is fixedly connected to the filter exhaust pipe 11. One end of the filter exhaust pipe 11 is fixedly connected to the outer wall of the connecting column 5. A titanium rod filter element 24 is fixedly connected inside the filter tank 3. The titanium rod filter element 24 has good corrosion resistance and filtration performance and can effectively filter impurities in white oil. The outer wall of the filter tank 3 is set on the inner wall of the clamping plate 22. An exhaust port 26 is fixedly connected to the top of the filter tank 3.

[0033] Specifically, when using the online switching equipment for extruder white oil filter cartridges, it is crucial to first closely monitor the air level inside filter tanks 3. When the air level inside one filter tank 3 reaches a certain threshold, it indicates that the filtration efficiency of that tank may be affected. In this case, the air inside the other filter tank 3 should be purged to prepare for the subsequent switching operation. Next, the bypass valve 14 should be opened; this step is critical. Opening the bypass valve 14 ensures that the flow of white oil is not completely blocked during the switching process, thus maintaining the basic operation of the extruder lubrication system. After the bypass valve 14 is fully open, the inlet and outlet valves 12 are closed. This creates a relatively enclosed space inside the filter tank 3, facilitating the replacement and removal of the filter cartridge. Operators can carefully replace or remove the existing filter cartridge inside the filter tank 3 and then install a new one. After replacement, the equipment awaits the next replacement operation. The other filter tank 3 continues to operate normally, and its operation is not hindered by the replacement of the filter cartridge in one tank 3, thus achieving the effect of online filter cartridge switching and effectively ensuring the continuous and stable operation of the extruder and the good filtration effect of the white oil.

[0034] Reference Figure 1 and Figure 2An L-shaped support plate 2 is fixedly connected to the side wall of the fixed plate 1. The L-shaped support plate 2 can be made of high-strength aluminum alloy, which is lightweight and high-strength, facilitating equipment installation and support structure construction. A first support plate 16 is fixedly connected to the side wall of the L-shaped support plate 2. The first support plate 16 can be made of steel plate of moderate thickness, with strength sufficient to support the hydraulic cylinder 15 while ensuring structural stability. The hydraulic cylinder 15 is fixedly connected inside the first support plate 16. The cylinder body of the hydraulic cylinder 15 can be made of high-quality carbon steel, which has good mechanical properties and pressure resistance, capable of withstanding the pressure during operation. A gear column 17 is fixedly connected to the output end of the hydraulic cylinder 15. The gear column 17 can be made of medium carbon steel and has undergone quenching and tempering treatment to improve its hardness and wear resistance, ensuring good meshing with the first gear 18. A base plate 23 is fixedly connected to the side wall of the L-shaped support plate 2. The gear column 17 can also be made of medium carbon steel. After quenching and tempering, its hardness and wear resistance are improved to ensure good meshing with the first gear 18. The inner wall of the base plate 23 is rotatably connected to the first rotating column 20, and the inner wall of the base plate 23 is rotatably connected to the second rotating column 21. The outer wall of the first rotating column 20 is fixedly connected to the first gear 18, and the outer wall of the second rotating column 21 is fixedly connected to the second gear 19. The outer wall of the first gear 18 meshes with the outer wall of the gear column 17, and the first gear 18 meshes with the second gear 19. The first gear 18 and the second gear 19 can be made of high-strength alloy steel and have undergone precision machining and heat treatment to ensure their gear accuracy and wear resistance, and meet the requirements for good meshing. The outer walls of the first rotating column 20 and the second rotating column 21 are both fixedly connected to the clamping plate 22. The clamping plate 22 can be made of engineering plastic material with certain elasticity and wear resistance. The other end of the first rotating column 20 is rotatably connected to the inner wall of the L-shaped support plate 2, and the other end of the second rotating column 21 is rotatably connected to the inner wall of the L-shaped support plate 2.

[0035] Specifically, the hydraulic cylinder 15 serves as a power source, and its output end has sufficient power to drive the gear column 17 to move. When the piston rod of the hydraulic cylinder 15 extends or retracts, the gear column 17 will move linearly accordingly. The movement of the gear column 17 drives the first gear 18, which meshes with it, to rotate. Due to the meshing transmission principle between gears, the first gear 18 will rotate along with the gear column 17. At the same time as the first gear 18 rotates, it will also drive the second gear 19, which meshes with it, to rotate. This gear transmission method can accurately transmit power and motion, ensuring that the two gears can rotate in a coordinated manner. In this process, since the first rotating column 20 and the second rotating column 21 are both fixedly connected to the outer walls of the clamping plates 22, and the first rotating column 20 and the second rotating column 21 rotate with the rotation of the first gear 18 and the second gear 19 respectively, the clamping plates 22 are also driven to rotate. When the clamping plates 22 rotate to the appropriate position, they can tightly clamp the filter canister 3 from both sides, achieving the effect of clamping the filter canister 3, thereby providing stable support and fixing conditions for the filter canister 3.

[0036] Reference Figure 1 The connecting components include a flange 6, which can be made of high-quality stainless steel, which has good corrosion resistance and mechanical strength, and can ensure stable connection in complex working environments. One end of the flange 6 is fixedly connected to the outer wall of the connecting column 5. A handle 7 is fixedly connected to the side wall of the flange 6. The handle 7 can be made of stainless steel or engineering plastic. The stainless steel handle 7 is sturdy and durable, while the engineering plastic handle 7 has a better feel and anti-slip performance. The flange 6 is internally threaded with a screw 8, which can be made of high-strength carbon steel. After heat treatment, it has good strength and toughness. A nut 25 is threadedly connected to the outer wall of the screw 8.

[0037] Specifically, when maintaining the equipment, nut 25 can be rotated. Since nut 25 and screw 8 are threadedly connected, rotating nut 25 causes screw 8 to gradually unscrew from nut 25, allowing it to be removed. Simultaneously, handle 7 can be pulled. Handle 7 is fixedly connected to the side wall of flange 6. When handle 7 is under force, this force is transmitted to flange 6, causing it to move. Since one end of flange 6 is originally fixed to the outer wall of connecting column 5, pulling handle 7 causes flange 6 to gradually detach from the outer wall of connecting column 5, facilitating easier maintenance of the internal structure. This method allows for easy opening of the equipment's connecting parts, facilitating the inspection, repair, or replacement of internal components, thus improving the convenience and efficiency of equipment maintenance.

[0038] Working Principle: Using the online switching device for extruder white oil filter elements, firstly, when the air level inside one filter tank 3 reaches a certain limit, the air inside the other filter tank 3 is discharged. Then, the bypass valve 14 is opened, and after the bypass valve 14 is fully open, the inlet and outlet valves 12 are closed to replace the filter element inside the filter tank 3. A new filter element is then installed, ready for the next replacement. This process does not interfere with the movement of the other filter tank 3, achieving the effect of online filter element switching. Subsequently, the output end of the hydraulic cylinder 15 drives the gear column 17 to move. The movement of the gear column 17 drives the first gear 18, which in turn rotates. Simultaneously, the rotation of the first gear 18 drives the second gear 19, which in turn rotates. During this process, the clamping plate 22 is also rotated, achieving the effect of clamping the filter tank 3. Next, the nut 25 can be turned to remove the screw 8, and the handle 7 can be pulled. The handle 7, under force, moves the flange 6, causing it to detach from the outer wall of the connecting column 5, making it easier to maintain the internal structure.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. An online switching device for white oil filter elements in an extruder, comprising a connecting column (5) and a fixing plate (1), characterized in that: The outer wall of the connecting column (5) is provided with a connecting component, which is used to connect other pipes. The outer wall of the connecting column (5) is provided with a pipe component, which is used to control the air inside the filter tank (3). The piping assembly includes a first connecting pipe (13), one end of which is fixedly connected to the outer wall of the connecting column (5), and a filter tank (3) is fixedly connected to one end of the first connecting pipe (13). A bypass valve (14) is fixedly connected to one end of the filter tank (3). A T-shaped connecting pipe (10) is fixedly connected to the bottom of the filter tank (3). A first exhaust control valve (9) is fixedly connected to one end of the T-shaped connecting pipe (10). An outlet pipe (4) is fixedly connected to one end of the first exhaust control valve (9). An inlet and outlet valve (12) is fixedly connected to one end of the T-shaped connecting pipe (10). The other end of the inlet and outlet valve (12) is fixedly connected to the outer wall of the connecting column (5). A filter exhaust pipe (11) is fixedly connected to the other end of the T-shaped connecting pipe (10). One end of the filter exhaust pipe (11) is fixedly connected to the outer wall of the connecting column (5).

2. The online switching device for extruder white oil filter elements according to claim 1, characterized in that: The connecting assembly includes a flange (6), one end of which is fixedly connected to the outer wall of the connecting column (5), a handle (7) is fixedly connected to the side wall of the flange (6), a screw (8) is threaded inside the flange (6), and a nut (25) is threaded on the outer wall of the screw (8).

3. The online switching device for extruder white oil filter elements according to claim 1, characterized in that: The side wall of the fixed plate (1) is fixedly connected to an L-shaped support plate (2), and the side wall of the L-shaped support plate (2) is fixedly connected to a first support plate (16).

4. The online switching device for extruder white oil filter elements according to claim 3, characterized in that: A hydraulic cylinder (15) is fixedly connected inside the first support plate (16), and a gear column (17) is fixedly connected to the output end of the hydraulic cylinder (15).

5. The online switching device for extruder white oil filter elements according to claim 3, characterized in that: The L-shaped support plate (2) is fixedly connected to the side wall of the base plate (23), the inner wall of the base plate (23) is rotatably connected to the first rotating column (20), and the inner wall of the base plate (23) is rotatably connected to the second rotating column (21).

6. The online switching device for extruder white oil filter elements according to claim 5, characterized in that: The outer wall of the first rotating column (20) is fixedly connected to a first gear (18), and the outer wall of the second rotating column (21) is fixedly connected to a second gear (19). The outer wall of the first gear (18) meshes with the outer wall of the gear column (17), and the first gear (18) meshes with the second gear (19).

7. The online switching device for extruder white oil filter elements according to claim 5, characterized in that: The first rotating column (20) and the second rotating column (21) are both fixedly connected to the outer walls of the clamping plate (22). The other end of the first rotating column (20) is rotatably connected to the inner wall of the L-shaped support plate (2), and the other end of the second rotating column (21) is rotatably connected to the inner wall of the L-shaped support plate (2).

8. The online switching device for extruder white oil filter elements according to claim 1, characterized in that: The filter canister (3) is fixedly connected to a titanium rod filter element (24), the outer wall of the filter canister (3) is set on the inner wall of the clamping plate (22), and the top of the filter canister (3) is provided with an exhaust port (26).

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