A biaxially oriented thin film dust removal device

Abstract

This utility model discloses a biaxially stretched film dust removal device, applied in the field of film dust removal technology. It includes a housing, with a first roller and a second roller respectively installed on both sides of the housing. A film is slidably connected between the first and second rollers. Rotating rods are rotatably connected inside both the first and second rollers. By rotating a linear rack that meshes with gears on both sides, the second roller and the first roller can slide upwards and downwards respectively, thus biaxially stretching the film. This tightens and flattens the film surface, facilitating dust adsorption and improving dust removal efficiency. The rotation of the gears synchronously drives the fixed block to rotate, allowing the two cover plates to rotate and tilt, bringing them closer to the top and bottom sides of the stretched film, ensuring a tight fit. Simultaneously, the sliding push plate can scrape away dust accumulated on the filter screen, facilitating the filtration and cleaning of adsorbed dust.

Description

Technical Field

[0001] This utility model belongs to the field of film dust removal technology, and specifically relates to a biaxially oriented film dust removal device. Background Technology

[0002] Dust easily accumulates on the surface of the film during the production process. The dust needs to be removed from the surface of the film before lamination or winding.

[0003] Currently, Chinese utility model patent CN221361627U discloses a biaxially oriented membrane dust removal device. Existing membrane dust removal methods generally use a fan to pressurize the suction pipe, causing the pipe to adsorb dust from the membrane surface through negative pressure. However, because the membrane is relatively loose when moving on the rollers, it is impossible to flatten the membrane surface, resulting in bending or wrinkles that hinder effective dust adsorption and reduce the efficiency of membrane dust removal. Furthermore, during the dust removal process, the membrane can clog the filter inside the suction pipe. The difficulty in cleaning the filter reduces the negative pressure suction of the suction pipe, further affecting the efficiency of membrane dust removal. Utility Model Content

[0004] The purpose of this invention is to provide a biaxially stretched film dust removal device, which has the advantages of biaxially stretching the film flat, facilitating the filtration and cleaning of adsorbed dust, and improving the efficiency of dust adsorption and removal on the film surface.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a biaxially oriented film dust removal device, comprising a housing, wherein a first roller and a second roller are respectively installed on both sides of the housing, a film is slidably connected between the first roller and the second roller, a rotating rod is rotatably connected inside the first roller and the second roller, and a slider is rotatably connected to both ends of the rotating rod and slidably connected to the housing, a gear is rotatably connected between the two sliders inside the housing, and a straight rack meshing with the gear is bolted to one end of each slider near the end of the rack.

[0006] Using the above technical solution, the rotating linear rack meshes with gears on both sides, causing the second roller and the first roller to slide upwards and downwards respectively, thus stretching the film bidirectionally. This tightens and flattens the film surface, facilitating dust adsorption and improving dust removal efficiency. The rotation of the gears synchronously drives the fixed block to rotate, allowing the two cover plates to tilt and approach the top and bottom sides of the stretched film, ensuring a tight fit. Simultaneously, the sliding push plate scrapes away accumulated dust on the filter screen, facilitating dust filtration and cleaning, and improving practicality.

[0007] The present invention is further configured such that: a fixing block is bolted to one end of the gear near the inside of the housing; two cover plates are symmetrically bolted to the end of the fixing block away from the gear; each of the two cover plates has a through groove inside; a connecting block is bolted to the end of the cover plate away from the fixing block; and a rotating cylinder that is rotatably connected to the housing is bolted to the end of the connecting block away from the cover plate; the interior of the rotating cylinder is connected to both the rotating cylinder and the through groove.

[0008] By adopting the above technical solution, the two cover plates can be rotated and tilted to get close to the upper and lower sides of the stretched film, ensuring a tight fit.

[0009] The present invention is further configured such that: a dust collection box bolted to the same housing is rotatably sleeved at the end of the rotating cylinder away from the connecting block; a filter screen is bolted inside the dust collection box; an adsorption fan bolted to the same dust collection box is provided on the side of the filter screen away from the rotating cylinder; a push plate is slidably connected to the end of the filter screen near the rotating cylinder; a screw threaded through the dust collection box is rotatably connected to the top of the push plate; and a storage box bolted to the same dust collection box is provided at the bottom of the filter screen.

[0010] Using the above technical solution, the dust accumulated on the filter screen is scraped off by sliding the push plate up and down.

[0011] The present invention is further configured such that: a handwheel rotatably connected to the housing is bolted to one end of the gear away from the fixed block, and a fastening bolt that is engaged with the housing is threaded through the inside of the handwheel.

[0012] Using the above technical solution, the gear can be rotated by turning the handwheel, and the handwheel can be locked by tightening the fastening bolt, thereby securing the gear.

[0013] The present invention is further configured such that: a sealing ring, which is bonded to the dust collection box, is slidably sleeved on the surface of both the rotating cylinder and the dust collection box at one end near the dust collection box.

[0014] By adopting the above technical solution, the airtightness of the dust collection box is improved, preventing air from entering the interior through gaps.

[0015] The present invention is further configured such that: both sides of the box are rotatably connected to positioning rollers that are slidably connected to the film.

[0016] The above technical solution is used to position the film sliding and improve the stability of the film sliding inside the box.

[0017] The present invention is further configured such that a return spring is bolted to the side of each of the two sliders that are far apart from each other, and is fixedly connected to the housing.

[0018] By adopting the above technical solution, the rebound force of the reset spring can be used to drive the slider to reset quickly, so that the first roller and the second roller stop bidirectional stretching of the film.

[0019] The present invention is further configured such that an inspection door is bolted to the top of the box.

[0020] By adopting the above technical solution, the top of the enclosure can be opened by disassembling the inspection door, which facilitates the maintenance of the internal equipment.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. By rotating the linear rack, it meshes with gears on both sides, causing the second roller and the first roller to slide upwards and downwards respectively, thus stretching the film bidirectionally. This tightens and flattens the film surface, facilitating the adsorption of surface dust and improving the dust removal effect.

[0023] 2. The rotation of the gears synchronously drives the fixed block to rotate, allowing the two cover plates to rotate and tilt, bringing them closer to the top and bottom sides of the stretched film to ensure a tight fit. Simultaneously, the push plate can slide up and down to scrape away accumulated dust on the filter screen, facilitating the filtration and cleaning of adsorbed dust and improving practicality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of one side of the structure of this utility model;

[0026] Figure 3 This is a sectional view of the box structure of this utility model;

[0027] Figure 4 This is a cross-sectional view of the structure from the other side of this utility model;

[0028] Figure 5 This is a partial structural cross-sectional view of this utility model.

[0029] Reference numerals: 1. Box body; 2. Membrane; 3. First roller; 4. Slider; 5. Linear rack; 6. Gear; 7. Rotating rod; 8. Second roller; 9. Fixing block; 10. Cover plate; 11. Through groove; 12. Connecting block; 13. Rotating cylinder; 14. Dust collection box; 15. Adsorption fan; 16. Filter screen; 17. Screw; 18. Push plate; 19. Storage box; 20. Handwheel; 21. Fastening bolt; 22. Positioning roller; 23. Return spring; 24. Inspection door; 25. Sealing ring. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Example 1:

[0032] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A biaxially oriented film dust removal device includes a housing 1. A first roller 3 and a second roller 8 are respectively installed on both sides inside the housing 1. A film 2 is slidably connected between the first roller 3 and the second roller 8. A rotating rod 7 is rotatably connected inside both the first roller 3 and the second roller 8. A slider 4, slidably connected to the housing 1, is rotatably connected to both ends of the rotating rod 7. A gear 6 is rotatably connected between the two sliders 4 inside the housing 1. A linear rack 5, meshing with the gear 6, is bolted to the end of each slider 4 near the end of the first roller 4. By rotating the linear rack 5 to mesh with the gears 6 on both sides, the second roller 8 and the first roller 3 can be driven to slide upwards and downwards respectively, thus biaxially stretching the film. This tightens and flattens the film surface, facilitating the adsorption of surface dust and improving the dust removal effect.

[0033] refer to Figure 2 , Figure 4 Positioning rollers 22, which are rotatably connected to the film 2 on both sides of the housing 1, are used to position the film and improve its stability as it slides inside the housing 1.

[0034] refer to Figure 2 Each of the two sliders 4, located on opposite sides, is fitted with a return spring 23 that is fixedly connected to the housing 1. The return force of the return spring 23 can be used to quickly reset the sliders 4, thereby stopping the first roller 3 and the second roller 8 from bidirectionally stretching the film.

[0035] refer to Figure 1 The top of the enclosure 1 is bolted with an inspection door 24. The top of the enclosure 1 can be opened by removing the inspection door 24, which facilitates the maintenance of the internal equipment.

[0036] Brief description of the usage process: The film is passed between the first roller 3 and the second roller 8, and then the rotating gear 6 engages with the linear racks 5 on both sides, causing one slider 4 to slide upwards and the other downwards. This causes the first roller 3 and the second roller 8 to slide up and down, stretching the film bidirectionally and making the film surface taut and flat. Finally, the rotation of the first roller 3 and the second roller 8 on the surface of the rotating rod 7 does not affect the forward sliding of the film inside the housing 1.

[0037] Example 2:

[0038] refer to Figure 1 , Figure 2 , Figure 5 A biaxially oriented film dust removal device includes a gear 6 with a fixing block 9 bolted to one end near the inside of the housing 1. Two cover plates 10 are symmetrically bolted to the end of the fixing block 9 away from the gear 6. Each cover plate 10 has a through groove 11 inside. A connecting block 12 is bolted to the end of the cover plate 10 away from the fixing block 9. A rotating cylinder 13, which is rotatably connected to the housing 1, is bolted to the end of the connecting block 12 away from the cover plate 10. The interior of the rotating cylinder 13 communicates with both the rotating cylinder 13 and the through groove 11. A dust collection box 14, bolted to the housing 1, is rotatably sleeved at the end of the cylinder 13 away from the connecting block 12. A filter screen 16 is bolted inside the dust collection box 14. An adsorption fan 15, bolted to the dust collection box 14, is located on the side of the filter screen 16 away from the rotating cylinder 13. A push plate 18 is slidably connected to the end of the filter screen 16 near the rotating cylinder 13. A screw 17, threaded through the dust collection box 14, is rotatably connected to the top of the push plate 18. A storage box 19, bolted to the dust collection box 14, is located at the bottom of the filter screen 16. The rotation of the gear 6 synchronously drives the fixing block 9 to rotate, allowing the two cover plates 10 to rotate and tilt, thus bringing them closer to the upper and lower sides of the stretched film, ensuring a tight fit. Simultaneously, the push plate 18 can slide up and down to scrape away the dust accumulated on the filter screen 16, facilitating the filtration and cleaning of the adsorbed dust and improving practicality.

[0039] refer to Figure 4 , Figure 5 A handwheel 20, which is rotatably connected to the housing 1, is bolted to the end of gear 6 away from the fixed block 9. A fastening bolt 21, which is engaged with the housing 1, is threaded through the inside of the handwheel 20. Rotating the handwheel 20 can drive gear 6 to rotate, while tightening the fastening bolt 21 can lock the handwheel 20, thereby securing gear 6.

[0040] refer to Figure 5 Both the rotating cylinder 13 and the dust collection box 14 have a sealing ring 25 slidably fitted onto one end of the surface near the dust collection box 14. This improves the sealing of the inside of the dust collection box 14 and prevents air from entering the interior through gaps.

[0041] Brief description of the usage process: By rotating gear 6, the fixing block 9 is rotated synchronously, allowing the two cover plates 10 on one side of the fixing block 9 to tilt and approach the upper and lower sides of the stretched film. Then, by turning on the adsorption fan 15, air is drawn in, causing the cover plates 10 to adsorb the dust passing through the through groove 11 and transport it into the dust collection box 14 using the rotating cylinder 13. Afterward, the dust is filtered through the filter screen 16, and the screw 17 is rotated to engage with the threads of the dust collection box 14, thereby causing the push plate 18 to slide up and down on one side of the filter screen 16, scraping the dust accumulated on the surface into the storage box 19 for storage.

[0042] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A biaxially oriented film dust removal device, comprising a housing (1), characterized in that: The first roller (3) and the second roller (8) are respectively installed on both sides inside the box (1). A thin film (2) is slidably connected between the first roller (3) and the second roller (8). A rotating rod (7) is rotatably connected inside the first roller (3) and the second roller (8). A slider (4) that is slidably connected to the box (1) is rotatably connected to both ends of the rotating rod (7). A gear (6) is rotatably connected between the two sliders (4) inside the box (1). A straight rack (5) that meshes with the gear (6) is bolted to one end of the slider (4) near the straight rack (5).

2. The biaxially oriented thin film dust removal device according to claim 1, characterized in that: A fixing block (9) is bolted to one end of the gear (6) near the inside of the housing (1). Two cover plates (10) are symmetrically bolted to the end of the fixing block (9) away from the gear (6). Both cover plates (10) have through slots (11) inside. A connecting block (12) is bolted to the end of the cover plate (10) away from the fixing block (9). A rotating cylinder (13) that is rotatably connected to the housing (1) is bolted to the end of the connecting block (12) away from the cover plate (10). The interior of the rotating cylinder (13) is connected to the rotating cylinder (13) and the through slot (11) respectively.

3. The biaxially oriented thin film dust removal device according to claim 2, characterized in that: The rotating cylinder (13) is rotatably sleeved with a dust collection box (14) bolted to the housing (1) at one end away from the connecting block (12). A filter screen (16) is bolted inside the dust collection box (14). An adsorption fan (15) bolted to the dust collection box (14) is provided on the side of the filter screen (16) away from the rotating cylinder (13). A push plate (18) is slidably connected to one end of the filter screen (16) near the rotating cylinder (13). A screw rod (17) threaded through the dust collection box (14) is rotatably connected to the top of the push plate (18). A storage box (19) bolted to the dust collection box (14) is provided at the bottom of the filter screen (16).

4. The biaxially oriented thin film dust removal device according to claim 2, characterized in that: The end of the gear (6) away from the fixed block (9) is bolted with a handwheel (20) that is rotatably connected to the housing (1). The handwheel (20) is threaded through and connected with a fastening bolt (21) that is snapped into the housing (1).

5. A biaxially oriented thin film dust removal device according to claim 3, characterized in that: The rotating cylinder (13) and the dust collection box (14) are both slidably fitted with a sealing ring (25) that is bonded to the dust collection box (14) at one end of their surfaces.

6. The biaxially oriented thin film dust removal device according to claim 1, characterized in that: Both sides of the box (1) are rotatably connected to positioning rollers (22) that are slidably connected to the film (2).

7. The biaxially oriented thin film dust removal device according to claim 1, characterized in that: Each of the two sliders (4) is bolted with a return spring (23) fixedly connected to the housing (1) on the side that is far apart from each other.

8. The biaxially oriented thin film dust removal device according to claim 1, characterized in that: The top of the housing (1) is bolted with an inspection door (24).

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