Roller dust collecting device

Abstract

The utility model discloses a kind of roll pressure dust collection devices, hard scraper is pasted on pressure roller surface, for scraping dust adhered on pressure roller surface, dust adhered on pressure roller surface is turned over using brush roller, using soft scraper and pressure roller surface contact, for scraping remaining dust adhered on pressure roller surface, dust collecting element is arranged for collecting dust scraped off on pressure roller surface. The utility model is sequentially arranged by hard scraper, brush roller and soft scraper along the direction of rotation of pressure roller, forms three-stage cleaning system, hard scraper first scrapes most of adhered dust;Brush roller turns over stubborn dust and loosens;Finally, soft scraper is closely attached to roller surface by elasticity, and depth scraping is carried out, to ensure no residue. This progressive cleaning can effectively deal with dust of different adhesion degree, greatly improves the cleanliness of pressure roller surface, fundamentally reduces the product defects such as pole piece indentation and material shortage caused by dust residue, significantly improves product qualification rate and consistency.

Description

Technical Field

[0001] This utility model relates to the field of roller-pressed dust scraping and collection technology, and in particular to a roller-pressed dust collection device. Background Technology

[0002] In the rolling production process of lithium battery negative electrode sheets, the rolling mill is the core equipment, and the dust collection effect generated during its operation directly affects product quality and production stability.

[0003] Currently, the dust collection devices of traditional roller presses used in production lines generally have design flaws, resulting in low dust collection efficiency and failing to meet actual production needs. Specific problems are mainly reflected in the following aspects:

[0004] First, dust cleaning is incomplete, and stubborn dust is difficult to remove completely. Second, the baffle structure (such as side baffles) of traditional dust collection devices has a fixed angle and unreasonable design, making it difficult to effectively catch powder falling from the gap between the scraper and the roller surface, and also unable to block dust splashed by the rotation of the roller surface, allowing a large amount of dust to easily spread into the production environment. Third, the scattered dust easily adheres to the surface of the negative electrode sheet. When these dust-laden electrodes enter the subsequent rolling process, they will form stubborn stains under the pressure of the roller surface, leading to defects such as indentations and missing material on the electrode surface, seriously affecting the consistency and performance of the electrode sheet. Fourth, the dust collection hole design of traditional dust collection boxes lacks guidance, and powder easily accumulates inside the box and cannot be efficiently sucked away, further reducing collection efficiency.

[0005] In summary, the shortcomings of traditional roller press dust collection devices have become a key bottleneck restricting the improvement of negative electrode sheet production quality. There is an urgent need for a new type of dust collection device with optimized structure, high collection efficiency, and effective solution to roller sticking problems, in order to meet the stringent requirements of the lithium battery industry for electrode sheet quality and improve production stability and product qualification rate. Utility Model Content

[0006] To address the aforementioned problems, the purpose of this invention is to provide a roller-pressed dust collection device that solves the problems of incomplete dust cleaning and dust dispersion affecting the quality of electrode production.

[0007] The objective of this utility model can be achieved through the following technical solution: a roller-pressed dust collection device, comprising:

[0008] Hardened scraper: The hardened scraper is attached to the surface of the pressure roller and is used to scrape off the dust adhering to the surface of the pressure roller.

[0009] Brush rollers are used to agitate dust adhering to the surface of the pressure rollers.

[0010] A soft scraper component, which contacts the surface of the pressure roller and is used to scrape off any remaining adhering dust from the surface of the pressure roller;

[0011] Dust collection components are used to collect dust that is scraped off the surface of the pressure roller;

[0012] The hard scraper, brush roller, and soft scraper are arranged sequentially along the rotation direction of the pressure roller, and the dust collection component is located below the hard scraper, brush roller, and soft scraper.

[0013] As a further embodiment of this utility model, the hard scraper includes a hard scraper and a sliding plate, wherein the hard scraper is rotatably connected to the sliding plate, and the slope of the hard scraper is greater than the slope of the sliding plate.

[0014] As a further embodiment of this utility model, the brush roller includes a brush roller and an adsorption element, wherein the adsorption element is disposed between the brush roller and the soft scraper for adsorbing scattered dust.

[0015] As a further embodiment of this utility model, it also includes: a roller wiping component, arranged behind the soft scraper component along the rotation direction of the pressure roller, for wiping away the remaining sticky dust on the surface of the pressure roller.

[0016] As a further embodiment of this utility model, the roller wiping component includes a detachable filament cloth, which follows the base and reciprocates along the roller axis to wipe away the remaining adhesive dust on the roller surface.

[0017] As a further embodiment of this utility model, the dust collection component includes a collection box, and the outer baffle of the collection box is rotatably connected to an outer sliding plate for adjusting the collection range of scattered dust.

[0018] As a further embodiment of this utility model, the dust collection component includes a dust collection box, and the collection box and the dust collection box are provided with a plurality of dust collection holes, the side slope of the dust collection holes being greater than the slope of the sliding plate.

[0019] As a further improvement of this utility model, it also includes: a protective cover for accommodating the various components and forming a relatively independent dust collection environment.

[0020] The beneficial effects of this utility model are:

[0021] 1. This utility model employs a three-stage cleaning system formed by arranging a hard scraper, a brush roller, and a soft scraper sequentially along the rotation direction of the pressure roller. The hard scraper first removes most of the adhered dust; the brush roller loosens stubborn dust; and finally, the soft scraper, with its elasticity, adheres tightly to the roller surface for deep scraping, ensuring no residue remains. This progressive cleaning effectively addresses dust with varying degrees of adhesion, significantly improving the cleanliness of the pressure roller surface. It fundamentally reduces product defects such as electrode indentations and material shortages caused by dust residue, significantly improving product qualification rate and consistency.

[0022] 2. This utility model innovatively employs a collection strategy combining mechanical guidance and negative pressure adsorption. The sliding plate and collection box, through a reasonable slope design, guide the dust to slide downwards in a directional manner, reducing splashing. The dust collection box actively collects dust through negative pressure and utilizes multiple dust collection holes to maintain a stable negative pressure environment, ensuring efficient and thorough collection. Simultaneously, the protective cover creates a relatively enclosed space, effectively suppressing the diffusion of dust into the surrounding environment. This not only significantly improves the cleanliness of the work area and reduces the burden of equipment maintenance but also meets the environmental protection requirements of modern industrial production.

[0023] 3. The structural design of this utility model reflects a high degree of practicality and flexibility. The rotating connection design between the hard scraper and the sliding plate facilitates precise adjustment of the scraper gap; the angle of the outer baffle of the collection box is adjustable to adapt to different dust collection ranges; the filament cloth adopts a detachable design and can reciprocate along the roller shaft, which reduces the amount of consumables and facilitates replacement and maintenance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the roller-pressed dust collection device of this utility model;

[0025] Figure 2 This utility model Figure 1 A magnified structural diagram of component A;

[0026] Figure 3 This utility model Figure 1 A magnified structural diagram of component B;

[0027] Figure 4 This is a schematic diagram of the reciprocating motion of the drawing cloth of this utility model;

[0028] Figure 5 This is a top view of the collection box and collection hole of this utility model;

[0029] Figure 6 This is a side view of the collection hole and dust collection box of this utility model.

[0030] 10. Pressure roller;

[0031] 100. Hardened scraper component; 110. Hardened scraper; 120. Material sliding plate;

[0032] 200. Brush roller component; 210. Brush roller; 220. Adsorption component;

[0033] 300. Soft scraper parts; 310. Soft scraper;

[0034] 400. Dust collection component; 410. Collection box; 411. Slide plate; 412. Outer baffle; 420. Dust collection box; 430. Dust collection hole; 431. Side of dust collection hole;

[0035] 500. Roller wiping component; 510. Brushing cloth; 520. Top rod; 530. Base; 540. Sliding rod;

[0036] 600. Work protective cover; 610. Shell; 620. Receiving plate. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] Example 1:

[0039] like Figure 1 As shown, this utility model discloses a roller-pressed dust collection device, including a hard scraper 100, a brush roller 200, a soft scraper 300, and a dust collection component 400.

[0040] The hard scraper component 100 includes a hard scraper 110, which is attached to the surface of the pressure roller. By adjusting the gap between the hard scraper 110 and the surface of the pressure roller, it can scrape off most of the dust adhering to the surface of the pressure roller. The material of the hard scraper 110 has high hardness and wear resistance, and can maintain its shape and performance stability during long-term contact with the surface of the pressure roller to scrape dust, reducing the need for frequent replacement due to wear.

[0041] The brush roller component 200 includes a brush roller 210. After the pressure roller 10 is cleaned by the hard scraper component 100, some dust still adheres tightly to the pressure roller 10 and has not been scraped off, so it needs to be further processed. The brush roller 210 rotates with the rotating shaft, and the brush of the brush roller 210 contacts the surface of the pressure roller. The brush roller 210 is used to turn over the dust adhering to the surface of the pressure roller, and the dust adhering to the surface of the pressure roller is loosened or falls off by the turning.

[0042] The soft scraper component 300 includes a soft scraper 310. The soft scraper 310 is made of a flexible material with moderate elasticity. Under the action of elasticity, the soft scraper 310 always maintains contact and resistance with the body of the pressure roller 10, so that the soft scraper 310 can further scrape off the remaining adhering dust and improve the dust cleaning effect.

[0043] A dust collection device 400 is provided on the lower side of the hard scraper 100, the brush roller 200 and the soft scraper 300. The dust collection device 400 can collect the dust that is scraped off the surface of the pressure roller, and prevent the dust from flying in the working area and causing pollution.

[0044] During the production process, the cleanliness of the surface of the pressure roller 10 has a crucial impact on the forming and quality of the product. This device, through the three-stage arrangement of hard scraper 100, brush roller 200 and soft scraper 300 along the rotation direction of the pressure roller 10, can effectively clean the adhesive dust and stubborn adhering dust on the surface of the pressure roller 10. After being cleaned by this device, the pressure roller 10 can reduce product defects caused by dust residue, significantly improve the cleanliness of the pressure roller 10, thereby ensuring the quality and stability of the rolling process and improving the product qualification rate.

[0045] Example 2:

[0046] Based on the structure of Example 1, this example optimizes the structure of the hard scraper 100, making it easier to adjust the gap between the hard scraper 110 and the pressure roller surface, and also making it easier to collect the scraped dust.

[0047] like Figure 2 As shown, the hard scraper component 100 includes a hard scraper 110 and a sliding plate 120. The sliding plate 120 is fixedly installed with a fixed slope. The hard scraper 110 is rotatably connected to the sliding plate 120. The gap between the hard scraper 110 and the pressure roller surface can be adjusted by rotating the connection.

[0048] Furthermore, to ensure the accuracy of gap adjustment, scale markings can be set at the connection between the sliding plate 120 and the hard scraper 110, allowing operators to precisely adjust the gap size according to actual needs. This enables quick and accurate adjustments when cleaning dust with different properties or when addressing different operating conditions of the pressure roller 10.

[0049] Meanwhile, the slope of the hard scraper 110 is greater than that of the sliding plate 120. With a large slope of the hard scraper 110, dust is more likely to splash when it slides quickly down the hard scraper 110 to the collection box 410, causing dust to disperse. The small-slope sliding plate 120 can buffer the dust, slow down the dust sliding speed, reduce dust splashing, and facilitate dust collection. At the same time, the sliding plate 120 also facilitates the layout and installation of the components below.

[0050] Furthermore, the surface of the sliding plate 120 undergoes a special smoothing treatment, which can further reduce the friction between the dust and the sliding plate 120, allowing the dust to slide more smoothly into the collection box 410.

[0051] Example 3:

[0052] Based on the structure of Embodiment 1 or 2, this embodiment optimizes the structure of the brush roller by setting up an adsorption element 220, which can adsorb dust scattered by the brush roller 210.

[0053] Specifically, such as Figure 2As shown, the adsorption element 220 is disposed between the brush roller 210 and the soft scraper 310. The adsorption element 220 adopts negative pressure adsorption, which uses negative pressure to adsorb the dust scattered by the brush roller 210 and dust scattered from other nearby components, and then concentrates and transports the adsorbed dust to a specific collection area. This negative pressure adsorption method is highly efficient and stable, and can effectively capture the surrounding dust in a short time, preventing the dust from spreading further inside the device.

[0054] Example 4:

[0055] Based on the structure of Embodiment 1, 2 or 3, the device in this embodiment is further provided with a roller wiping component 500, which is used to wipe away the remaining sticky dust on the surface of the pressure roller 10.

[0056] Specifically, such as Figure 3 As shown, the roller wiping component 500 is arranged behind the soft scraper component 300 along the rotation direction of the pressure roller 10. The roller wiping component 500 is equipped with a separate dust collection component 400. The roller wiping component 500 includes a detachable scouring pad 510. The scouring pad 510 can be one or two layers. Utilizing the flexibility of the scouring pad 510, the top rod 520 tightly adheres the scouring pad 510 to the pressure roller surface, thoroughly cleaning and wiping away the remaining dust particles on the pressure roller surface. This adhesion method not only ensures the cleaning effect but also does not damage the surface of the pressure roller 10.

[0057] Furthermore, the detachable design allows the 510 brushed cloth to be easily replaced after a period of use to maintain good cleaning performance.

[0058] By using the roller wiping component 500, after the soft scraper component 300 has cleaned most of the dust on the surface of the pressure roller 10, a secondary cleaning can be performed on the remaining fine dust particles, forming a complete and efficient dust cleaning system, which further improves the dust collection efficiency and cleaning quality of the entire roller dust collection device.

[0059] Furthermore, such as Figure 3 and Figure 4As shown, the disassembly seat of the drawing cloth 510 is connected to the base 530 via the top rod 520. The base 530 is mounted on the sliding rod 540. Driven by a cylinder, the base 530 reciprocates along the sliding rod 540, thereby causing the drawing cloth 510 to reciprocate along the axial direction of the pressure roller 10, wiping away the remaining adhesive dust on the surface of the pressure roller 10. This structure reduces the amount of drawing cloth 510 used; only reciprocating motion along the axial direction of the pressure roller 10 is needed to effectively clean the remaining adhesive dust on the surface of the pressure roller 10, avoiding the need for large-area application of the drawing cloth 510. Simultaneously, this reciprocating motion allows the drawing cloth 510 to make more thorough contact with the surface of the pressure roller 10, ensuring that every area of ​​the drawing cloth 510 performs its cleaning function, thus improving the utilization rate of the drawing cloth 510.

[0060] Example 5:

[0061] Based on the structures of embodiments 1, 2, 3 or 4, this embodiment optimizes the structure of the dust collection component 400 to better collect scattered dust.

[0062] Specifically, such as Figure 2 and Figure 5 As shown, the dust collection component 400 includes a collection box 410 and a dust collection box 420. The slide plate 411 of the collection box 410 includes an outer slide plate and an inner slide plate. The outer slide plate and the inner slide plate are arranged in a funnel shape to increase the dust collection range. The inner slide plate is close to the pressure roller surface and maintains a small gap with the pressure roller surface, which can prevent dust from falling onto the electrode sheet and affecting the quality of the electrode sheet.

[0063] An outer baffle 412 is rotatably connected to the end of the outer slide plate. The angle between the outer baffle 412 and the outer slide plate can be adjusted to a suitable angle according to the actual situation and then fixed. The outer baffle 412 is used to adjust the range of dust collection and effectively prevent the powder coming from the roller surface from scattering everywhere.

[0064] Furthermore, such as Figure 5 and Figure 6 As shown, the collection box 410 and the dust collection box 420 are provided with multiple dust collection holes 430. The dust collection box 420 can use negative pressure to collect the falling dust. The design of the dust collection holes 430 can prevent the opening of the dust collection box 420 from being too large, which is conducive to maintaining the negative pressure environment of the dust collection box 420.

[0065] Furthermore, the slope of the side of the dust collection hole 431 is greater than the slope of the sliding plate 411, which is conducive to the collection of dust in the collection box 410, allowing the falling dust to pass more smoothly through the dust collection hole 430 into the dust collection box 420. The larger slope design of the side of the dust collection hole 431 allows the dust to slide down the slope quickly and smoothly under the action of gravity, reducing the residue and accumulation of dust in the collection box 410.

[0066] Example 6:

[0067] Based on the structure of embodiments 1, 2, 3, 4 or 5, the device in this embodiment is further provided with a work protective cover 600, which forms a relatively independent dust collection environment.

[0068] Specifically, such as Figure 1 As shown, the protective cover 600 is used to house components such as the hard scraper 100, the brush roller 200, the soft scraper 300, the dust collector 400, and the roller wiping component 500. The protective cover 600 includes a housing 610 and a receiving plate 620. The outer end of the receiving plate 620 is connected to the housing 610, and the inner end maintains an appropriate gap with the pressure roller surface. The receiving plate 620 can catch the dust scattered by each component during operation, preventing the dust from falling onto the electrode sheet and affecting the quality of the electrode sheet. At the same time, the housing 610 encloses the internal components, which can effectively reduce the dust from being blown into the surrounding environment.

[0069] The principle of this invention: This roller-pressed dust collection device utilizes a hard scraper 110 for initial cleaning, followed by the tumbling action of a brush roller 210 to loosen and disperse any remaining tightly adhered dust. Then, a soft scraper 310, with its elasticity, adheres closely to the surface of the pressure roller 10 for deep scraping, ensuring no residue remains. This three-stage cleaning structure effectively addresses dust with varying degrees of adhesion.

[0070] Meanwhile, the device uses a sliding plate 120, a collection box 410, and other structures with reasonable slope design to guide dust to slide down in a direction and reduce splashing; the dust collection box 420 generates negative pressure to actively collect scattered dust, and maintains a stable negative pressure environment through the dust collection hole 430 structure to ensure collection efficiency. The protective cover 600 forms a relatively closed space, which effectively inhibits the spread of dust to the surrounding environment and improves the overall collection effect and the cleanliness of the working environment.

[0071] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.

[0072] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

Claims

1. A roller-pressed dust collection device, characterized in that, include: Hardened scraper: The hardened scraper is attached to the surface of the pressure roller and is used to scrape off the dust adhering to the surface of the pressure roller. Brush rollers are used to agitate dust adhering to the surface of the pressure rollers. A soft scraper component, which contacts the surface of the pressure roller and is used to scrape off any remaining adhering dust from the surface of the pressure roller; Dust collection components are used to collect dust that is scraped off the surface of the pressure roller; The hard scraper, brush roller, and soft scraper are arranged sequentially along the rotation direction of the pressure roller, and the dust collection component is located below the hard scraper, brush roller, and soft scraper.

2. The roller-pressed dust collection device according to claim 1, characterized in that, The hard scraper component includes a hard scraper and a sliding plate. The hard scraper is rotatably connected to the sliding plate, and the slope of the hard scraper is greater than the slope of the sliding plate.

3. The roller-pressed dust collection device according to claim 1, characterized in that, The brush roller assembly includes a brush roller and an adsorption element, which is disposed between the brush roller and the soft scraper to adsorb scattered dust.

4. The roller-pressed dust collection device according to claim 1, characterized in that, Also includes: The roller wiping component is arranged behind the soft scraper component along the rotation direction of the pressure roller and is used to wipe away the remaining sticky dust on the surface of the pressure roller.

5. The roller-pressed dust collection device according to claim 4, characterized in that, The roller wiping component includes a detachable filament cloth that follows the base and reciprocates along the roller axis to wipe away any remaining adhering dust from the roller surface.

6. The roller-pressed dust collection device according to claim 1, characterized in that, The dust collection component includes a collection box, and the outer baffle of the collection box is rotatably connected to an outer sliding plate for adjusting the range of scattered dust collection.

7. A roller-pressed dust collection device according to claim 6, characterized in that, The dust collection component includes a dust collection box, which is provided with multiple dust collection holes. The slope of the side of the dust collection holes is greater than the slope of the sliding plate.

8. The roller-pressed dust collection device according to claim 1, characterized in that, Also includes: The work protective cover is used to house the various components and create a relatively independent dust collection environment.

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