A filter screen cleaning device for papermaking
By designing a filter cleaning device that includes a collection box, a vacuum motor, and a cleaning mechanism, dust and debris on the filter screen are automatically cleaned, solving the problem of inconvenient filter screen cleaning and improving dust removal efficiency and debris absorption during the cutting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN TENGRONGDA PAPER PULP PROCESSING CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-09
AI Technical Summary
In existing papermaking equipment, dust and debris adhering to the filter screen are difficult to clean efficiently, affecting the dust removal effect and requiring a lot of manual operation.
Design a filter cleaning device that includes a collection box, a vacuum motor, a dust inlet assembly, a filter screen, and a cleaning mechanism. Through the cooperation of a push-pull assembly and a scraper, the device automatically cleans dust and debris from the filter screen, reducing manual operation.
It enables convenient and efficient cleaning of the filter screen, reduces manual operation time, improves dust removal efficiency, and ensures effective absorption of debris during the cutting process.
Smart Images

Figure CN224331750U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of papermaking equipment, and in particular to a papermaking filter cleaning device. Background Technology
[0002] Paper is a widely used item in people's production, daily life, learning, and daily cleaning. Various equipment is used in paper production. The finished paper needs to be cut and rolled according to the requirements. During the cutting process, a lot of debris will be generated at the cut. In order to prevent the debris from contaminating the workshop or from adhering to the paper surface, dust removal equipment is usually used to absorb it.
[0003] The internal filter of the dust removal device is a component that prevents dust and debris from entering the vacuum motor. After a certain period of use, a large amount of dust and debris adheres to the filter, making it impossible for the suction power of the vacuum motor to pass through the filter and affecting the dust removal effect. In order not to affect the vacuuming, the operator needs to disassemble, clean or replace the filter, which takes a lot of time and affects the cutting process. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the aforementioned problems in the prior art, this utility model provides a papermaking filter cleaning device that can more conveniently and efficiently clean dust and debris adhering to the filter screen, reducing manual operation time and thus better absorbing debris generated during cutting.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:
[0008] A papermaking filter cleaning device includes a collection box, a vacuum motor, a dust inlet assembly, a filter screen, and a cleaning mechanism. The top of the collection box is provided with a mounting hole for the vacuum motor, which is detachably connected to the mounting hole. The upper part of the collection box is provided with a dust inlet, and the dust inlet assembly is connected to the dust inlet. The filter screen is disposed inside the collection box, and the cleaning mechanism is connected to the filter screen. The filter screen is disposed above the dust inlet.
[0009] The cleaning mechanism includes a mounting box, a push-pull assembly, a sealing assembly, scrapers, and a reset assembly. Each end of the upper part of the collection box has an opening, and a mounting box is located at each opening. One side of the push-pull assembly is connected to one of the mounting boxes, and the other side is connected to one end of the filter screen through an opening. One side of the reset assembly is connected to another mounting box, and the other side is connected to the other end of the filter screen through another opening. A sealing assembly is located outside each opening. Several scrapers are arranged below the filter screen, with the upper part of each scraper movably connected to the lower surface of the filter screen. Each scraper is connected to the interior of the collection box.
[0010] Furthermore, the push-pull assembly includes a first linear drive member, a slide rod, and a push-pull plate. The push-pull plate passes through the opening, one end of the push-pull plate is connected to one end of the filter screen, and the other end of the push-pull plate is slidably connected to the mounting box through a plurality of slide rods. The linear drive member is linearly driven connected to the push-pull plate.
[0011] Furthermore, the reset assembly includes several elastic elements and a movable plate. The movable plate passes through another opening, one end of which is connected to the other end of the filter screen, and the other end of which is connected to the mounting box through several elastic elements.
[0012] Furthermore, the sealing assembly includes two sets of holding components and a sealing ring. A sealing groove adapted to the sealing ring is provided on the outer side of the opening. The sealing ring is disposed inside the sealing groove. A holding component is disposed opposite to the upper and lower parts of the opening. The holding components are movably connected to the sealing ring and are detachably connected to the inside of the mounting box.
[0013] Furthermore, the pressing assembly includes a second linear drive, a pressure plate, and a sliding key. A sliding groove is provided on the outside of the collection box. One side of the pressure plate is slidably connected to the sliding groove via the sliding key. The other side of the pressure plate is movably connected to the sealing ring. The second linear drive is detachably connected to the mounting box and is linearly driven connected to the pressure plate.
[0014] Furthermore, the dust inlet assembly includes a dust suction hood and a dust inlet pipe, wherein the dust suction hood is connected to the dust inlet via the dust inlet pipe.
[0015] Furthermore, it also includes a sealing door, and the lower part of the collection box is provided with a dust outlet, on which the sealing door is detachably connected.
[0016] Furthermore, it also includes a PLC controller, which is electrically connected to both the vacuum motor and the cleaning mechanism.
[0017] (III) Beneficial Effects
[0018] The beneficial effects of this utility model are as follows: In actual production and use, when dust removal is required at the paper cutting position, the dust inlet assembly can be installed at the cutting point of the cutting device. Then, the dust collection motor is run, allowing dust and debris to enter the collection box through the dust inlet assembly. The filter screen then blocks the dust and debris, causing them to fall into the collection box for collection. When cleaning the filter screen is required, the dust collection motor can be stopped, and the sealing assembly can be released from the opening, allowing the filter screen to move. Then, the push-pull assembly is operated, causing the filter plate to be pushed and pulled. As the filter moves, it scrapes against the scraper inside the collection box, causing the dust adhering to the filter screen to fall to the bottom of the collection box, thus cleaning the filter screen. After cleaning, the push-pull assembly resets the filter screen, and then the sealing assembly operates. The sealing assembly, in conjunction with the push-pull assembly and the reset assembly, seals the filter screen, thereby activating the vacuum motor to continue dust removal. This allows for more convenient and efficient cleaning of dust and debris adhering to the filter screen, reducing manual operation time and better absorbing debris generated during cutting. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a papermaking filter cleaning device according to an embodiment of the present invention.
[0020] Figure 2 This is a front view of the overall structure of a papermaking filter cleaning device according to an embodiment of the present invention.
[0021] Figure 3 This is a cross-sectional view of the overall structure of the papermaking filter cleaning device according to an embodiment of the present invention.
[0022] Figure 4 for Figure 3 A magnified view of a portion of the image;
[0023] [Explanation of Labels in the Attached Image]
[0024] First linear drive component 1, slide bar 2, mounting box 3, vacuum motor 4, collection box 5, dust inlet 6, vacuum hood 7, dust inlet pipe 8, push-pull plate 9, filter screen 10, scraper 11, elastic component 12, moving plate 13, sealing door 14, sealing ring 15, pressure plate 16, second linear drive component 17, sliding key 18. Detailed Implementation
[0025] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] Please refer to Figures 1 to 4 As shown, a papermaking filter cleaning device of the present invention includes a collection box 5, a dust suction motor 4, a dust inlet assembly, a filter 10, and a cleaning mechanism. The top of the collection box 5 is provided with a mounting hole for the dust suction motor 4, and the dust suction motor 4 is detachably connected to the mounting hole. The upper part of the collection box 5 is provided with a dust inlet 6, and the dust inlet assembly is connected to the dust inlet 6. The filter 10 is provided inside the collection box 5, and the cleaning mechanism is connected to the filter 10. The filter 10 is located above the dust inlet 6.
[0027] The cleaning mechanism includes a mounting box 3, a push-pull assembly, a sealing assembly, scrapers 11, and a reset assembly. Both ends of the upper part of the collection box 5 have an opening, and a mounting box 3 is located at each opening. One side of the push-pull assembly is connected to one mounting box 3, and the other side is connected to one end of the filter screen 10 through an opening. One side of the reset assembly is connected to another mounting box 3, and the other side is connected to the other end of the filter screen 10 through another opening. A sealing assembly is located outside each opening. Several scrapers 11 are arranged below the filter screen 10, with the upper part of each scraper 11 movably connected to the lower surface of the filter screen 10. Each scraper 11 is connected to the interior of the collection box 5.
[0028] The working principle of this utility model is as follows: In actual production and use, when dust removal is required at the paper cutting position, the dust inlet component can be installed at the cutting position of the cutting device. Then, the dust suction motor 4 is run, allowing dust and debris to enter the collection box 5 through the dust inlet component. The filter screen 10 then blocks the dust and debris, causing them to fall into the collection box 5 for collection. When the filter screen 10 needs to be cleaned, the dust suction motor 4 can be stopped, and the sealing component can be released from the opening, allowing the filter screen 10 to move. Then, the push-pull component is run, causing the filter plate to move. During the movement, the filter plate scrapes against the scraper 11 inside the collection box 5, causing the dust adhering to the filter screen 10 to fall to the lower part of the collection box 5, thereby cleaning the filter screen 10. After cleaning, the push-pull component resets the filter screen 10, and then the sealing component is run, allowing the sealing component to seal in cooperation with the push-pull component and the reset component, thereby running the dust suction motor 4 to continue dust removal.
[0029] Furthermore, the push-pull assembly includes a first linear drive 1, a slide rod 2, and a push-pull plate 9. The push-pull plate 9 is inserted inside the opening. One end of the push-pull plate 9 is connected to one end of the filter screen 10. The other end of the push-pull plate 9 is slidably connected to the mounting box 3 through a plurality of slide rods 2. The linear drive is linearly driven connected to the push-pull plate 9.
[0030] As can be seen from the above description, when it is necessary to clean the filter screen 10, the sealing component can be released to open the opening, allowing the filter screen 10 to move. Then, the first linear drive 1 is activated, causing the first linear drive 1 to pull one end of the filter screen 10 back and forth through the push-pull plate 9. During the movement, the filter screen 10 is rubbed and scraped on the scraper 11, so that the dust and debris on the filter screen 10 are scraped off. The scraped dust and debris then fall into the collection box 5 for collection.
[0031] Furthermore, the reset assembly includes several elastic elements 12 and a movable plate 13. The movable plate 13 is inserted into another opening. One end of the movable plate 13 is connected to the other end of the filter screen 10, and the other end of the movable plate 13 is connected to the mounting box 3 through several elastic elements 12.
[0032] As can be seen from the above description, when the push-pull assembly pushes and pulls one end of the filter screen 10, the other end of the filter screen 10 is pulled by the elastic element 12, which facilitates subsequent reset.
[0033] Furthermore, the sealing assembly includes two sets of pressing components and a sealing ring 15. A sealing groove adapted to the sealing ring 15 is provided on the outer side of the opening. The sealing ring 15 is disposed inside the sealing groove. A pressing component is disposed opposite to the upper and lower parts of the opening. The pressing components are movably connected to the sealing ring 15. The pressing components are detachably connected to the interior of the mounting box 3.
[0034] Furthermore, the pressing assembly includes a second linear drive 17, a pressure plate 16, and a sliding key 18. The collection box 5 is provided with a sliding groove on its exterior. One side of the pressure plate 16 is slidably connected to the sliding groove via the sliding key 18. The other side of the pressure plate 16 is movably connected to the sealing ring 15. The second linear drive 17 is detachably connected to the mounting box 3 and is linearly driven connected to the pressure plate 16.
[0035] As can be seen from the above description, when it is necessary to fix the filter screen 10 and seal the opening, the second linear drive 17 can be operated to drive the pressure plate 16 to move towards the moving plate 13 and the push-pull plate 9 until the pressure plate 16 presses against the moving plate 13 and the push-pull plate 9. This allows the moving plate 13 and the push-pull plate 9 to be limited by the cooperation of the upper and lower pressure plates 16. At the same time, the side wall of the pressure plate 16 presses against the sealing ring 15 on the outside of the opening, so that the opening is sealed, which facilitates the subsequent vacuuming treatment by the vacuuming motor 4.
[0036] Furthermore, the dust inlet assembly includes a dust suction hood 7 and a dust inlet pipe 8, wherein the dust suction hood 7 is connected to the dust inlet 6 via the dust inlet pipe 8.
[0037] As can be seen from the above description, when it is necessary to remove dust from the cutting area of the cutting device, the dust hood 7 can be installed above the cutting area, and then the dust suction motor 4 can be run to allow the dust to pass through the dust hood 7 and enter the collection box 5 through the dust inlet pipe 8 for collection.
[0038] Furthermore, it also includes a sealing door 14, and the lower part of the collection box 5 is provided with a dust outlet, on which the sealing door 14 is detachably connected.
[0039] As can be seen from the above description, when it is necessary to clean the collection box 5, the impurities collected in the collection box 5 can be taken out through the dust outlet, and the dust outlet can be sealed and closed through the sealing door 14 when the vacuum motor 4 is running.
[0040] Furthermore, it also includes a PLC controller, which is electrically connected to the vacuum motor 4 and the cleaning mechanism respectively.
[0041] As can be seen from the above description, it is beneficial to adjust the parameters of the papermaking filter screen 10 cleaning device through the PLC controller, and to make it more convenient for operators to operate the papermaking filter screen 10 cleaning device. Example 1
[0042] Please refer to Figures 1 to 4 A papermaking filter screen 10 cleaning device includes a collection box 5, a dust suction motor 4, a dust inlet assembly, a filter screen 10, and a cleaning mechanism. The top of the collection box 5 is provided with a mounting hole for the dust suction motor 4, and the dust suction motor 4 is detachably connected to the mounting hole. The upper part of the collection box 5 is provided with a dust inlet 6, and the dust inlet assembly is connected to the dust inlet 6. The filter screen 10 is provided inside the collection box 5, and the cleaning mechanism is connected to the filter screen 10. The filter screen 10 is located above the dust inlet 6.
[0043] The cleaning mechanism includes a mounting box 3, a push-pull assembly, a sealing assembly, scrapers 11, and a reset assembly. Both ends of the upper part of the collection box 5 have an opening, and a mounting box 3 is located at each opening. One side of the push-pull assembly is connected to one mounting box 3, and the other side is connected to one end of the filter screen 10 through an opening. One side of the reset assembly is connected to another mounting box 3, and the other side is connected to the other end of the filter screen 10 through another opening. A sealing assembly is located outside each opening. Several scrapers 11 are arranged below the filter screen 10, with the upper part of each scraper 11 movably connected to the lower surface of the filter screen 10. Each scraper 11 is connected to the interior of the collection box 5.
[0044] The push-pull assembly includes a first linear drive 1, a slide rod 2, and a push-pull plate 9. The push-pull plate 9 is inserted into the opening. One end of the push-pull plate 9 is connected to one end of the filter screen 10. The other end of the push-pull plate 9 is slidably connected to the mounting box 3 through a plurality of slide rods 2. The linear drive is linearly driven connected to the push-pull plate 9.
[0045] The first linear drive unit 1 is a screw jack;
[0046] The reset assembly includes several elastic elements 12 and a movable plate 13. The movable plate 13 is inserted into another opening. One end of the movable plate 13 is connected to the other end of the filter screen 10. The other end of the movable plate 13 is connected to the mounting box 3 through several elastic elements 12.
[0047] The outer surfaces of the movable plate 13 and the push-pull plate 9 are provided with a rubber coating, which helps the pressure plate 16 to better seal the opening when it is pressed onto the push-pull plate 9 and the movable plate 13.
[0048] The elastic element 12 is a spring;
[0049] The sealing assembly includes two sets of pressing components and a sealing ring 15. A sealing groove adapted to the sealing ring 15 is provided on the outside of the opening. The sealing ring 15 is disposed inside the sealing groove. A pressing component is disposed opposite to the upper and lower parts of the opening. The pressing components are movably connected to the sealing ring 15. The pressing components are detachably connected to the inside of the mounting box 3.
[0050] The pressing assembly includes a second linear drive 17, a pressure plate 16, and a sliding key 18. The collection box 5 is provided with a sliding groove on its outside. One side of the pressure plate 16 is slidably connected to the sliding groove through the sliding key 18. The other side of the pressure plate 16 is movably connected to the sealing ring 15. The second linear drive 17 is detachably connected to the mounting box 3. The second linear drive 17 is linearly driven connected to the pressure plate 16.
[0051] The second linear drive component 17 is a cylinder;
[0052] The dust inlet assembly includes a dust suction hood 7 and a dust inlet pipe 8, wherein the dust suction hood 7 is connected to the dust inlet 6 through the dust inlet pipe 8;
[0053] It also includes a sealing door 14, and the lower part of the collection box 5 is provided with a dust outlet, and the sealing door 14 is detachably connected to the dust outlet by bolts;
[0054] It also includes a PLC controller, which is electrically connected to the vacuum motor 4 and the cleaning mechanism respectively;
[0055] The PLC controller is model DATA-7311, and the PLC controller is electrically connected to the first linear drive 1, the second linear drive 17 and the vacuum motor 4 respectively.
[0056] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.
[0057] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A filter screen cleaning device for papermaking, characterized in that: The device includes a collection box, a vacuum motor, a dust inlet assembly, a filter, and a cleaning mechanism. The top of the collection box has a mounting hole for the vacuum motor, which is detachably connected to the mounting hole. The upper part of the collection box has a dust inlet, which is connected to the dust inlet assembly. The filter is located inside the collection box, and the cleaning mechanism is connected to the filter. The filter is positioned above the dust inlet. The cleaning mechanism includes a mounting box, a push-pull assembly, a sealing assembly, scrapers, and a reset assembly. Each end of the upper part of the collection box has an opening, and a mounting box is located at each opening. One side of the push-pull assembly is connected to one of the mounting boxes, and the other side is connected to one end of the filter screen through an opening. One side of the reset assembly is connected to another mounting box, and the other side is connected to the other end of the filter screen through another opening. A sealing assembly is located outside each opening. Several scrapers are arranged below the filter screen, with the upper part of each scraper movably connected to the lower surface of the filter screen. Each scraper is connected to the interior of the collection box.
2. The papermaking filter cleaning device as described in claim 1, characterized in that: The push-pull assembly includes a first linear drive member, a slide rod, and a push-pull plate. The push-pull plate passes through the opening, one end of the push-pull plate is connected to one end of the filter screen, and the other end of the push-pull plate is slidably connected to the mounting box through a plurality of slide rods. The linear drive member is linearly driven connected to the push-pull plate.
3. The papermaking filter cleaning device as described in claim 1, characterized in that: The reset assembly includes several elastic elements and a movable plate. The movable plate passes through another opening. One end of the movable plate is connected to the other end of the filter screen, and the other end of the movable plate is connected to the mounting box through several elastic elements.
4. The papermaking filter cleaning device as described in claim 1, characterized in that: The sealing assembly includes two sets of holding components and a sealing ring. A sealing groove adapted to the sealing ring is provided on the outside of the opening. The sealing ring is disposed inside the sealing groove. A holding component is disposed opposite to the upper and lower parts of the opening. The holding components are movably connected to the sealing ring and are detachably connected to the inside of the mounting box.
5. The papermaking filter cleaning device as described in claim 4, characterized in that: The pressing assembly includes a second linear drive, a pressure plate, and a sliding key. A sliding groove is provided on the outside of the collection box. One side of the pressure plate is slidably connected to the sliding groove via the sliding key. The other side of the pressure plate is movably connected to the sealing ring. The second linear drive is detachably connected to the mounting box and is linearly driven connected to the pressure plate.
6. The papermaking filter cleaning device as described in claim 1, characterized in that: The dust inlet assembly includes a dust suction hood and a dust inlet pipe, wherein the dust suction hood is connected to the dust inlet via the dust inlet pipe.
7. The papermaking filter cleaning device as described in claim 1, characterized in that: It also includes a sealing door, and the lower part of the collection box is provided with a dust outlet, on which the sealing door is detachably connected.
8. The papermaking filter cleaning device as described in claim 1, characterized in that: It also includes a PLC controller, which is electrically connected to the vacuum motor and the cleaning mechanism respectively.