Battery pole piece roller press

Abstract

The utility model relates to the technical field of battery processing equipment, and more specifically relates to a battery pole piece roller press, which comprises: a box body, the two sides of which are provided with an inlet end and an outlet end for a pole piece to enter and exit; the compression roller assembly is arranged in the box body and comprises an upper roller and a lower roller; the first cleaning assembly is arranged at the inlet end of the box body and is used for cleaning the pole piece; and the second cleaning assembly is arranged in the box body and is used for cleaning the upper roller and the lower roller on the pressing roller assembly. By arranging the first cleaning assembly and the second cleaning assembly, dust on a pole piece material and dust on the compression roller assembly are cleaned respectively, the situation that in the compression roller process, dust and other impurities are pressed into an active substance and a foil, and consequently the quality of a pole piece is affected is avoided, it is guaranteed that no dust exists in the pole piece compression roller process, and the quality of the pole piece is improved. The product quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing equipment, and more specifically, to a roll press for rolling battery electrodes. Background Art

[0002] Lithium batteries are a type of battery with lithium metal or lithium alloy as the positive / negative electrode material and using a non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high requirements for the environment. With the development of science and technology, lithium batteries have become the mainstream.

[0003] The processing of lithium battery electrodes is usually carried out by a roll press. Specifically, the electrode is extruded by two relatively rotating pressure rollers to a certain thickness to compact the raw materials on the electrode. However, due to the problems in the production workshop environment, impurities such as dust are easily adhered to the surface of the electrode and the pressure rollers. Therefore, during the rolling process of the electrode, impurities are easily pressed into the electrode, thus affecting the quality of the electrode. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a roll press that can clean the electrode and the pressure rollers.

[0005] To solve the above technical problems, the utility model proposes a roll press for battery electrodes, including:

[0006] A box body, with an inlet end and an outlet end for the electrode to enter and exit provided on both sides;

[0007] A pressure roller assembly, arranged inside the box body, and the pressure roller assembly includes an upper roller and a lower roller;

[0008] A first cleaning component, arranged at the inlet end of the box body, for cleaning the electrode;

[0009] And a second cleaning component, arranged inside the box body, for cleaning the upper roller and the lower roller on the pressure roller assembly.

[0010] In the above technical solution, further, the first cleaning component includes:

[0011] A cleaning strip, arranged at the inlet end of the box body, and a through groove is provided on the side section of the cleaning strip;

[0012] And cleaning cotton, with two pieces, and arranged at the upper and lower ends of the through groove.

[0013] In any of the above technical solutions, further, the cleaning strip is detachably arranged at the inlet end of the box body.

[0014] In any of the above technical solutions, further, there are two sets of second cleaning components, which act on the upper roller and the lower roller respectively; the second cleaning component includes:

[0015] A connecting bar, which is arranged close to the upper roller or the lower roller. There is a negative pressure chamber in the connecting bar. A strip-shaped groove communicating with the negative pressure chamber is opened on the side of the connecting bar adjacent to the upper roller or the lower roller. An interface communicating with the negative pressure chamber is also arranged on the connecting bar;

[0016] And a negative pressure generating device, which is connected to the interface and is used to generate negative pressure at the strip-shaped groove and suck impurities on the upper roller or the lower roller in a negative pressure manner.

[0017] In any of the above technical solutions, further, a scraper is arranged on the side of the connecting bar where the strip-shaped groove is opened, and the other end of the scraper abuts against the upper roller or the lower roller;

[0018] Wherein, a storage groove for storing impurities is formed between the scraper and the connecting bar.

[0019] In any of the above technical solutions, further, the pressure roller assembly further includes:

[0020] A first lifting part, which is used to drive the upper roller to move up and down in the vertical direction to adjust the distance between the upper roller and the lower roller.

[0021] In any of the above technical solutions, further, the first lifting part is two electric push rods connected to both sides of the upper roller.

[0022] In any of the above technical solutions, further, the pressure roller assembly further includes:

[0023] A support member, which is arranged in the box body and is used to support the lower roller;

[0024] And a buffer member, which is arranged between the support member and the lower roller.

[0025] In any of the above technical solutions, further, the support member includes:

[0026] Two sleeves, which are respectively arranged on both sides in the box body;

[0027] And two connecting rods, which are respectively slidably embedded in the two sleeves. The upper ends of the two connecting rods extend out of the two sleeves and are respectively connected to both sides of the lower roller;

[0028] Wherein, the buffer member is a buffer spring arranged in the sleeve, and the upper end of the buffer spring abuts against the connecting rod.

[0029] In any of the above technical solutions, further, the upper end of the box body is open, and a top cover is further covered on the upper port of the box body;

[0030] Wherein, a second lifting part for driving the top cover to lift is arranged around the top cover and the box body.

[0031] Beneficial effects: Compared with the prior art, in this application, a first cleaning component for cleaning the pole piece material and a second cleaning component for cleaning the pressure roller assembly are provided, so as to respectively clean the pressure roller assembly and the dust on the pole piece material, avoiding the influence on the quality of the pole piece caused by dust and other impurities being pressed into the active material and the foil during the pressure roller process, ensuring that there is no dust during the pole piece pressure roller process, and guaranteeing the product quality. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0033] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0034] Figure 2 is an internal structural schematic diagram of the present invention;

[0035] Figure 3 is a sectional structural schematic diagram of the present invention;

[0036] Figure 4 is a sectional structural schematic diagram of the present invention;

[0037] Figure 5 is Figure 3 an enlarged structural schematic diagram of part A in

[0038] The description of the reference numerals in the drawings is as follows:

[0039] 100, box body; 101, inlet end; 102, outlet end; 110, top cover; 120, second lifting part; 200, pressure roller assembly; 210, upper roller; 220, lower roller; 230, first lifting part; 240, support member; 241, sleeve; 242, connecting rod; 250, buffer member; 300, first cleaning component; 310, cleaning strip; 311, through groove; 320, cleaning cotton; 400, second cleaning component; 410, connecting strip; 411, negative pressure chamber; 412, strip-shaped groove; 413, interface; 414, scraper; 415, storage tank; 500, heating component; 600, guide roller. Detailed Embodiments

[0040] Next, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0041] It should be noted that, as shown in the present application and the claims, unless the context clearly indicates an exception, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0042] If there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If the specific posture changes, then the directional indications will also change accordingly.

[0043] In the present invention, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] The present utility model provides a pole piece roll press capable of cleaning the pole piece and the pressing roller.

[0046] The following will detail the battery pole piece roll press of the present application through the following embodiments.

[0047] Embodiment 1:

[0048] As Figures 1 - 5 shown, in this embodiment, the battery pole piece roll press includes: a box body 100, with an inlet end 101 and an outlet end 102 for the pole piece to enter and exit on both sides; a pressing roller assembly 200, disposed inside the box body 100, the pressing roller assembly 200 includes an upper roller 210 and a lower roller 220. After the pole piece enters from the inlet end 101 of the box body 100, the upper roller 210 and the lower roller 220 are used to roll press the pole piece, and finally it is discharged from the outlet end 102.

[0049] To avoid impurities in the produced pole piece, a first cleaning component 300 is provided, disposed at the inlet end 101 of the box body 100 for cleaning the pole piece;

[0050] and a second cleaning component 400, disposed inside the box body 100 for cleaning the upper roller 210 and the lower roller 220 on the pressing roller assembly 200.

[0051] First, the first cleaning component 300 is used to clean the impurities on the surface of the pole piece. At the same time, the second cleaning component 400 cleans the upper roller 210 and the lower roller 220 inside the box body 100, thereby effectively improving the cleanliness during the pole piece rolling process.

[0052] Specifically, the first cleaning component 300 includes: a cleaning strip 310, disposed at the inlet end 101 of the box body 100, and a through groove 311 is provided on the side section of the cleaning strip 310; and two cleaning cotton pieces 320, disposed at the upper and lower ends of the through groove 311.

[0053] By using the cleaning cotton 320 to clean the pole piece, not only can the impurities on the surface of the pole piece be cleaned up, but also the pole piece will not be scratched.

[0054] Specifically, the second cleaning component 400 has two groups and acts on the upper roller 210 and the lower roller 220 respectively; the second cleaning component 400 includes: a connecting strip 410, closely disposed adjacent to the upper roller 210 or the lower roller 220. A negative pressure chamber 411 is provided inside the connecting strip 410. A strip-shaped groove 412 communicating with the negative pressure chamber 411 is provided on the side of the connecting strip 410 adjacent to the upper roller 210 or the lower roller 220. An interface 413 communicating with the negative pressure chamber 411 is also provided on the connecting strip 410;

[0055] And a negative pressure generating device (not shown in the figure) is connected to the interface 413 and is used to generate negative pressure at the strip groove 412 and absorb impurities on the upper roller 210 or the lower roller 220 in a negative pressure manner.

[0056] For processing the dust and other impurities in the box body 100 and on the upper roller 210 and the lower roller 220, a connecting strip 410 and a negative pressure generating device are provided to absorb the dust and other impurities on the upper roller 210 and the lower roller 220 in a negative pressure manner.

[0057] It should be noted that a heating assembly 500 and a plurality of guide rollers 600 are also provided in the box body 100, wherein the heating assembly 500 is arranged between the inlet end 101 of the box body 100 and the pressure roller assembly 200, and the plurality of guide rollers 600 are arranged staggered up and down between the heating assembly 500 and the inlet end 101 of the box body 100, and are used to guide the electrode from the inlet end 101 to the heating assembly 500.

[0058] Embodiment 2:

[0059] This embodiment is a further improvement made on the basis of the first embodiment.

[0060] like Figure 2 and Figure 3 As shown, in this embodiment, the cleaning strip 310 is detachably disposed at the inlet end 101 of the box 100 to facilitate replacement of the cleaning strip 310 .

[0061] Specifically, angle irons are installed on the upper and lower sides of the inlet end 101 of the box body 100, and the cleaning strip 310 is inserted into the angle irons for easy operation.

[0062] Embodiment three:

[0063] This embodiment is a further improvement made on the basis of any of the above embodiments.

[0064] like Figure 3 and Figure 5 As shown, in this embodiment, a scraper 414 is provided on one side of the connecting strip 410 with a strip groove 412, and the other end of the scraper 414 abuts against the upper roller 210 or the lower roller 220; wherein a storage groove 415 for storing impurities is formed between the scraper 414 and the connecting strip 410.

[0065] For some impurities on the surfaces of the upper roller 210 and the lower roller 220, it is difficult to remove them by negative pressure. Therefore, a scraper 414 is provided. When the upper roller 210 and the lower roller 220 rotate, the scraper 414 removes all the impurities on the two rollers and drops them onto the storage tank 415. Then, under the action of the negative pressure generating device, the impurities falling on the storage tank 415 will be smoothly adsorbed into the negative pressure chamber 411 in the connecting bar 410 and finally discharged from the interface 413.

[0066] By providing the scraper 414, the cleaning ability of the second cleaning component 400 for the upper roller 210 and the lower roller 220 is effectively improved.

[0067] Embodiment 4:

[0068] This embodiment is a further improvement based on any of the above embodiments.

[0069] As Figure 4 shown, in this embodiment, the pressure roller assembly 200 further includes: a first lifting part 230 for driving the upper roller 210 to move up and down in the vertical direction to adjust the distance between the upper roller 210 and the lower roller 220.

[0070] By providing the first lifting part 230, it is convenient to adjust the distance between the upper roller 210 and the lower roller 220, and then the rolling of the pole piece is realized. Specifically, the first lifting part 230 is two electric push rods connected to both sides of the upper roller 210. The specific structure of the first lifting part 230 is not limited as long as it can realize the lifting of the upper roller 210.

[0071] Optimally, in this embodiment, the pressure roller assembly 200 further includes: a support member 240 provided in the box body 100 for supporting the lower roller 220; and a buffer member 250 provided between the support member 240 and the lower roller 220.

[0072] To ensure that the pressing force of the upper roller 210 and the lower roller 220 on the pole piece is uniform, a buffer member 250 is provided. Through the buffer member 250, the lower roller 220 can move up and down, so that the force on the pole piece is uniform.

[0073] Specifically, the support member 240 includes: two sleeves 241 respectively provided on both sides in the box body 100; and two connecting rods 242 respectively slidably embedded in the two sleeves 241. The upper ends of the two connecting rods 242 extend out of the two sleeves 241 and are respectively connected to both sides of the lower roller 220;

[0074] Among them, the buffer member 250 is a buffer spring provided in the sleeve 241, and the upper end of the buffer spring abuts against the connecting rod 242.

[0075] Through the elastic force of the elastic buffer spring, the buffer of the lower roller 220 is realized, so that the force on the lower roller 220 is uniform.

[0076] Embodiment Five:

[0077] This embodiment is a further improvement based on any of the above embodiments.

[0078] As Figure 1 and Figure 2 shown, in this embodiment, the upper end of the box body 100 is open, and a top cover 110 is also covered on the upper port of the box body 100; wherein, a second lifting part 120 for driving the top cover 110 to lift and lower is arranged around the top cover 110 and the box body 100.

[0079] By arranging the top cover 110 on the box body 100, and then using the second lifting part 120 to drive the top cover 110 to lift and lower, so as to open or cover the box body 100, thereby facilitating the staff to observe the internal situation of the box body 100.

[0080] It should be noted that the structure of the second lifting part 120 can be the same as that of the first lifting part 230, both are electric push rods. An electric push rod is arranged around the box body 100, and then each electric push rod is connected to the bottom week of the top cover 110. By driving the synchronous movement of each electric push rod, the lifting and lowering of the top cover 110 is realized.

[0081] The above has described the embodiments of the present disclosure. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary technical personnel in the technical field to understand the embodiments disclosed herein.

Claims

1. A battery pole piece rolling press, characterized in that, Comprising: A box body (100) with an inlet end (101) and an outlet end (102) on both sides for the electrode plates to enter and exit; A pressing roller assembly (200) arranged inside the box body (100), and the pressing roller assembly (200) includes an upper roller (210) and a lower roller (220); A first cleaning assembly (300) arranged at the inlet end (101) of the box body (100) for cleaning the electrode plates; And a second cleaning assembly (400) arranged inside the box body (100) for cleaning the upper roller (210) and the lower roller (220) of the pressing roller assembly (200).

2. The battery electrode sheet rolling press according to claim 1, wherein The first cleaning assembly (300) includes: A cleaning strip (310) arranged at the inlet end (101) of the box body (100), and a through groove (311) is provided on the side section of the cleaning strip (310); And two cleaning cotton pieces (320) arranged at the upper and lower ends of the through groove (311).

3. The battery electrode sheet rolling press according to claim 2, wherein The cleaning strip (310) is detachably arranged at the inlet end (101) of the box body (100).

4. The battery pole piece rolling press according to claim 1, wherein The second cleaning assembly (400) has two groups and acts on the upper roller (210) and the lower roller (220) respectively; the second cleaning assembly (400) includes: A connecting strip (410) arranged close to the upper roller (210) or the lower roller (220), a negative pressure chamber (411) is arranged inside the connecting strip (410), a strip-shaped groove (412) communicating with the negative pressure chamber (411) is provided on the side of the connecting strip (410) adjacent to the upper roller (210) or the lower roller (220), and an interface (413) communicating with the negative pressure chamber (411) is also arranged on the connecting strip (410); And a negative pressure generating device connected to the interface (413) for generating negative pressure at the strip-shaped groove (412) and sucking impurities on the upper roller (210) or the lower roller (220) in a negative pressure manner.

5. The battery electrode sheet rolling press according to claim 4, wherein, A scraper (414) is arranged on the side of the connecting strip (410) where the strip-shaped groove (412) is provided, and the other end of the scraper (414) abuts against the upper roller (210) or the lower roller (220); Wherein, a storage groove (415) for storing impurities is formed between the scraper (414) and the connecting strip (410).

6. The battery electrode sheet roll press according to claim 1, wherein, The pressing roller assembly (200) further includes: A first lifting part (230) for driving the upper roller (210) to move up and down in the vertical direction to adjust the distance between the upper roller (210) and the lower roller (220).

7. The battery electrode sheet roll press according to claim 6, characterized in that, The first lifting part (230) is two electric push rods connected to both sides of the upper roller (210).

8. The battery electrode sheet roll press according to claim 1, wherein, The pressing roller assembly (200) further includes: A support member (240) arranged inside the box body (100) for supporting the lower roller (220); And a buffer member (250) arranged between the support member (240) and the lower roller (220).

9. The battery electrode sheet rolling press according to claim 8, wherein, The support member (240) includes: The sleeve (241) has two and is respectively arranged on both sides inside the box body (100); And the connecting rods (242) have two and are respectively slidably embedded in the two sleeves (241). The upper ends of the two connecting rods (242) are respectively connected to both sides of the lower roller (220) after extending out of the two sleeves (241); Wherein, the buffer member (250) is a buffer spring arranged inside the sleeve (241), and the upper end of the buffer spring abuts against the connecting rod (242).

10. The battery pole piece rolling press according to claim 1, wherein, The upper end of the box body (100) is open, and a top cover (110) is also covered on the upper port of the box body (100); Wherein, a second lifting part (120) for driving the top cover (110) to lift is arranged around the top cover (110) and the box body (100).

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