Device for preventing pole piece from falling off during roll-down after pole piece slitting

Abstract

The utility model relates to the technical field of anti-falling devices, and discloses a device for preventing a pole piece from falling off when the pole piece is rolled down after being cut, the device comprises supporting side frames, connecting sliding blocks are slidably sleeved in the two supporting side frames, and springs I are fixed between the tops of the connecting sliding blocks and the top surfaces in the supporting side frames; the opposite sides of the two connecting sliding blocks extend to the outer sides of the supporting side frames, inner supporting plates are fixed to the opposite sides of the two connecting sliding blocks, and outer supporting plates are arranged on the outer sides of the inner supporting plates in a sliding mode. By means of an elastic downward pressing structure, when a pole piece is wound after being cut, the pole piece can be always attached to the winding shaft, the pole piece is prevented from falling off due to elasticity and inertia, and the service life of the pole piece is prolonged. According to the pole piece winding device, the winding shaft is arranged, so that the pole piece can be better attached when wound, the problem that an existing pole piece is prone to falling off from the winding shaft under the action of elasticity and inertia after being cut and rolled downwards is solved, the winding stability of the pole piece after being cut is improved, and the pole piece can be better protected.

Description

Technical Field

[0001] The utility model application relates to the technical field of anti-dropping devices, in particular to a device for preventing pole pieces from dropping off when pole pieces are rolled down after being cut. Background Art

[0002] The pole piece is the electrode of the battery, which is divided into positive pole piece and negative pole piece. The positive pole piece is usually made of lithium compounds, lithium cobalt oxide and other materials. The pole piece production is the basic process for manufacturing lithium-ion power batteries, which has very high requirements for the precision, intelligence level and reliability of production performance of the equipment. The pole piece slitting is to cut and divide the rolled battery pole piece into strips according to the battery specifications. The pole piece after slitting requires high strip size accuracy and no wrinkles or powder loss.

[0003] Pole sheet slitting is the last step in pole sheet forming. The quality of the cutting edge and the size data of the pole sheet will directly affect the performance and safety of the finished battery. However, during the unwinding process of the existing pole sheet after slitting, the pole sheet reel has a certain elasticity and inertia during movement, and the pole sheet is easy to fall off the reel under the action of the buffer force, resulting in the scrapping of the pole sheet and the decline of product quality. Summary of the invention

[0004] In order to solve the problem that the existing pole piece is easy to fall off from the reel due to the action of elasticity and inertia when rolled down after slitting, the utility model provides a device for preventing the pole piece from falling off when the pole piece is rolled down after slitting, so as to solve the above problem.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for preventing a pole piece from falling off when it is rolled down after being cut, comprises a supporting side frame, two supporting side frames are slidably sleeved with a connecting slider inside, and a spring is fixed between the top of the connecting slider and the top surface inside the supporting side frame, the opposite sides of the two connecting sliders extend to the outside of the supporting side frames and are fixed with an inner supporting plate, the outer side of the inner supporting plate is slidably provided with an outer supporting plate, a pressure roller is provided between the two outer supporting plates on the sides of the two inner supporting plates, and both ends of the pressure roller are rotatably connected to the outer supporting plate through bearings, a moving screw is fixed to the outer side of the two inner supporting plates, and the moving screw is slidably inserted inside the outer supporting plate, and one end of each moving screw extending to the outside of the outer supporting plate is threadedly sleeved with a fixing clamp.

[0007] Furthermore, the two supporting side frames are provided with a transversely placed "convex" sliding groove that cooperates with the connecting slider, and the connecting slider and spring 1 are both slidably sleeved with a sliding rod, and the upper and lower ends of the sliding rod are fixed on the inner wall of the supporting side frame.

[0008] Furthermore, an adjustment groove cooperating with the movable screw rod is opened inside the outer support plate, and the two movable screw rods are both arranged in a transversely placed "T" shape, and the height of each fixed clamp block is greater than the height of the adjustment groove.

[0009] Furthermore, a top plate is provided above the pressure roller, and a cleaning cotton is fixed on the bottom surface of the top plate, and the bottom surface of the cleaning cotton is slidably fitted with the outer surface of the pressure roller, fixed scrapers are fixed on both sides of the top plate, and the fixed scrapers are clamped and hung on the side fixing plates, and the bottom surfaces of the two side fixing plates are fixed to the top surface of the outer support plate, and a limiting rod is slidably inserted inside the side fixing plate of the top surface of each fixed scraper, and a movable pull rod is fixed on the side of the limiting rod, a fixed sleeve is slidably sleeved on the outer side of the movable pull rod, and the side of the fixed sleeve is fixed on the side of the side fixing plate, and two springs are sleeved on the outer side of the movable pull rod inside the fixed sleeve, and both ends of the two springs are respectively fixed on the limiting rod and the fixed sleeve.

[0010] Furthermore, the lengths of the top plate and the cleaning cotton are both greater than the length of the pressure roller, and the side of the cleaning cotton close to the pressure roller is configured to be in an arc shape that matches the pressure roller.

[0011] Furthermore, a rectangular groove cooperating with the limiting plug rod is opened inside the side fixing plate, and the movable pull rods are all arranged in a transversely placed "T" shape, and the length of the movable pull rod is greater than the length of the limiting plug rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the elastic downward pressing structure can keep the pole piece in contact with the reel at all times when the pole piece is rolled up after slitting, so as to avoid the pole piece falling off due to elasticity and inertia, and make the pole piece fit better when rolled up, thus solving the problem that the existing pole piece is easy to fall off from the reel under the action of elasticity and inertia after slitting, improving the stability of the pole piece when it is rolled up after slitting, and better protecting the pole piece.

[0014] 2. In the utility model, through the cleaning component on the top, when the pressure roller rotates, the pressure roller and the cleaning cotton are in contact and friction, so that the surface of the pressure roller can be kept clean and free of debris, thereby avoiding indentations on the surface of the pole piece due to debris when the pressure roller contacts the pole piece, thereby better protecting the pole piece and further improving the winding effect of the pole piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic front view of a device structure for preventing a pole piece from falling off according to an embodiment of the present application;

[0017] Figure 2 yes Figure 1 A bottom view schematic diagram of the structure of the device for preventing the pole piece from falling off in the embodiment shown;

[0018] Figure 3 yes Figure 1 A schematic front view of the structure of the device for preventing the pole piece from falling off in the embodiment shown;

[0019] Figure 4 yes Figure 1 In the embodiment shown Figure 1 A schematic diagram of the enlarged structure in FIG.

[0020] The meanings of the reference numerals in the figure are: 1. Support side frame; 2. Connecting slider; 3. Spring one; 4. Inner support plate; 5. Outer support plate; 6. Pressure roller; 7. Moving screw; 8. Fixed clamp; 9. Top plate; 10. Cleaning cotton; 11. Side fixing plate; 12. Fixed scraper; 13. Limiting rod; 14. Moving pull rod; 15. Spring two; 16. Fixed sleeve. DETAILED DESCRIPTION

[0021] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] Reference Figure 1 , Figure 2 and Figure 4, a device for preventing a pole piece from falling off when rolling down after the pole piece is cut, comprising a supporting side frame 1, two supporting side frames 1 are both slidably sleeved with a connecting slider 2, two supporting side frames 1 are both provided with a transversely placed "convex" slide groove cooperating with the connecting slider 2, the connecting slider 2 and a spring 3 are both slidably sleeved with a slide rod, and the upper and lower ends of the slide rod are both fixed on the inner wall of the supporting side frame 1, and a spring 3 is fixed between the top of the connecting slider 2 and the top surface of the supporting side frame 1, the opposite sides of the two connecting sliders 2 extend to the outside of the supporting side frame 1 and are fixed with an inner support plate 4, and the outer side of the inner support plate 4 is An outer support plate 5 is slidably arranged, and an adjustment groove cooperating with the movable screw 7 is opened inside the outer support plate 5. The two movable screws 7 are both arranged in a horizontally placed "T" shape, and the height of each fixed clamp 8 is greater than the height of the adjustment groove. A pressure roller 6 is arranged between the two outer support plates 5 on the sides of the two inner support plates 4, and both ends of the pressure roller 6 are rotatably connected to the outer support plate 5 through bearings. Moving screws 7 are fixed on the outer sides of the two inner support plates 4, and the moving screws 7 are slidably inserted inside the outer support plate 5, and a fixed clamp 8 is threadedly sleeved on one end of each movable screw 7 extending to the outside of the outer support plate 5.

[0023] Specifically, when the electrode is being wound up, the pressure roller 6 is aligned on the reel and made to fit the pressure roller 6 with the outermost electrode. As the diameter of the electrode roll increases, the connecting slider 2 is driven to move by the pressure roller 6, the outer support plate 5 and the inner support plate 4, so that the connecting slider 2 compresses the spring 3 and moves inside the supporting side frame 1. Before use, the fixing clamps 8 on both sides are turned to release the clamping of the outer support plate 5 by the fixing clamps 8. The position and angle of the pressure roller 6 can be adjusted according to the position of the reel. After the adjustment is completed, the fixing clamps 8 are turned to clamp the outer support plate 5 again.

[0024] As an optimization solution, Figure 3 and Figure 4As shown, a top plate 9 is arranged above the pressure roller 6, and the lengths of the top plate 9 and the cleaning cotton 10 are both greater than the length of the pressure roller 6. The side of the cleaning cotton 10 close to the pressure roller 6 is set to an arc shape that matches the pressure roller 6, and the cleaning cotton 10 is fixed to the bottom surface of the top plate 9, and the bottom surface of the cleaning cotton 10 is slidingly fitted with the outer surface of the pressure roller 6. Fixed scrapers 12 are fixed on both sides of the top plate 9, and the fixed scrapers 12 are all engaged and hung on the side fixing plates 11. A rectangular groove that matches the limit plug rod 13 is opened inside the side fixing plates 11, and the movable pull rods 14 are all set to a "T" shape placed horizontally, and the movable pull rods 1 4 is greater than the length of the limiting rod 13, the bottom surfaces of the two side fixing plates 11 are fixed to the top surface of the outer support plate 5, and the side fixing plates 11 on the top surface of each fixed scraper 12 are slidably inserted with a limiting rod 13, and the side of the limiting rod 13 is fixed with a moving rod 14, and the outside of the moving rod 14 is slidably sleeved with a fixed sleeve 16, and the side of the fixed sleeve 16 is fixed to the side of the side fixing plate 11, and the outside of the moving rod 14 inside the fixed sleeve 16 is sleeved with a spring 2 15, and both ends of the spring 2 15 are respectively fixed to the limiting rod 13 and the fixed sleeve 16.

[0025] Specifically, when the pressure roller 6 is rotating, it cleans by contacting and rubbing with the cleaning cotton 10. When the cleaning cotton 10 is dirty, the movable rod 14 is pulled, so that the movable rod 14 drives the limiting rod 13 to move. When the limiting rod 13 moves, the spring 2 15 is compressed, and the limiting rod 13 moves to release the limit on the fixed scraper 12. The cleaning cotton 10 can be removed by pulling the fixed scraper 12. After cleaning is completed, the movable rod 14 is pulled again to engage the fixed scraper 12 inside the side fixed plate 11, and the movable rod 14 is released, so that the limiting rod 13 moves to the top of the fixed scraper 12 under the push of the spring 2 15.

[0026] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for preventing a pole piece from falling off when the pole piece is rolled down after being cut, characterized in that: The invention comprises a supporting side frame (1), wherein the two supporting side frames (1) are both slidably sleeved with a connecting slider (2), and a spring (3) is fixed between the top of the connecting slider (2) and the top surface of the supporting side frame (1), the opposite sides of the two connecting sliders (2) extend to the outside of the supporting side frame (1) and are fixed with an inner supporting plate (4), the outer side of the inner supporting plate (4) is slidably provided with an outer supporting plate (5), a pressure roller (6) is provided between the two outer supporting plates (5) on the sides of the two inner supporting plates (4), and both ends of the pressure roller (6) are rotatably connected to the outer supporting plate (5) through bearings, the outer sides of the two inner supporting plates (4) are both fixed with a moving screw (7), and the moving screw (7) is slidably inserted into the inner side of the outer supporting plate (5), and one end of each moving screw (7) extending to the outside of the outer supporting plate (5) is threadedly sleeved with a fixing clamp (8).

2. The device for preventing the pole piece from falling off when the pole piece is rolled down after being cut according to claim 1, characterized in that: The two supporting side frames (1) are provided with a transversely placed "convex" shaped sliding groove cooperating with the connecting slider (2), and the connecting slider (2) and the spring (3) are both provided with a sliding rod slidably sleeved therein, and the upper and lower ends of the sliding rod are fixed on the inner wall of the supporting side frame (1).

3. The device for preventing the pole piece from falling off when the pole piece is rolled down after being cut according to claim 1, characterized in that: An adjustment slot cooperating with the movable screw rod (7) is provided inside the outer support plate (5); the two movable screw rods (7) are both arranged in a transverse "T" shape; and the height of each fixed clamping block (8) is greater than the height of the adjustment slot.

4. The device for preventing the pole piece from falling off when the pole piece is rolled down after being cut according to claim 1, characterized in that: A top plate (9) is arranged above the pressure roller (6), and a cleaning cotton (10) is fixed on the bottom surface of the top plate (9), and the bottom surface of the cleaning cotton (10) is slidably fitted with the outer surface of the pressure roller (6). Fixed scrapers (12) are fixed on both sides of the top plate (9), and the fixed scrapers (12) are both engaged and hung on the side fixing plates (11). The bottom surfaces of the two side fixing plates (11) are both fixed on the top surface of the outer support plate (5), and the side fixing plates (11) on the top surface of each fixed scraper (12) are A limiting plug rod (13) is slidably inserted inside, and a moving pull rod (14) is fixed on the side of the limiting plug rod (13). A fixed sleeve (16) is slidably sleeved on the outside of the moving pull rod (14), and the side of the fixed sleeve (16) is fixed on the side of the side fixing plate (11). A spring (15) is sleeved on the outside of the moving pull rod (14) inside the fixed sleeve (16), and both ends of the spring (15) are respectively fixed on the limiting plug rod (13) and the fixed sleeve (16).

5. The device for preventing the pole piece from falling off when the pole piece is rolled down after being cut according to claim 4, characterized in that: The lengths of the top plate (9) and the cleaning cotton (10) are both greater than the length of the pressure roller (6), and the side of the cleaning cotton (10) close to the pressure roller (6) is arranged in an arc shape that matches the pressure roller (6).

6. The device for preventing the pole piece from falling off when the pole piece is rolled down after being cut according to claim 4, characterized in that: A rectangular groove cooperating with the limiting plug rod (13) is provided inside the side fixing plate (11), and the movable pull rod (14) is arranged in a transversely placed "T" shape, and the length of the movable pull rod (14) is greater than the length of the limiting plug rod (13).

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