Cathode roller surface treatment device capable of reducing edge tearing

Abstract

The utility model relates to the technical field of electrolytic copper foil, in particular to a cathode roller surface treatment device capable of reducing edge tearing, which comprises a base, fixing boxes are respectively arranged on the left side and the right side of the top end of the base, lifting assemblies are arranged in inner cavities of the two fixing boxes, a machine shell is arranged between the two lifting assemblies, and a plurality of grooves are formed in the machine shell. An adjusting assembly is arranged in an inner cavity of the machine shell, the left side and the right side of the rear end of the adjusting assembly extend to the left side and the right side of the rear end of the machine shell correspondingly and are fixedly connected with spray heads correspondingly, and the two spray heads are both connected with a storage tank containing weak hydrochloric acid. According to the cathode roller surface treatment device capable of reducing edge tearing, through the arrangement of the spray heads, a weak hydrochloric acid solution can be sprayed on the left side and the right side of the cathode roller, oxidation of the left side and the right side of the cathode roller is accelerated, the binding force between edge deposition copper foil and the cathode roller surface is reduced, the edge tearing probability during lithium battery copper foil stripping is reduced, and the yield is increased; the problem that when the foil is stripped from the surface of the cathode roller, the binding force between the copper foil and the edge of the cathode roller is too large and is torn is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic copper foil, in particular to a cathode roller surface treatment device capable of reducing edge tearing. Background Art

[0002] Lithium battery copper foil is widely used in lithium-ion batteries and other fields due to its good ductility and high conductivity. In the production process of lithium battery copper foil, there are three main processes: copper dissolving, electrolytic foil making, and slitting and packaging. When copper foil is electrodeposited on the surface of the cathode roller, its electroplating efficiency and deposition effect are easily affected by the surface morphology of the cathode roller.

[0003] Edge tearing is a common problem in the production process of lithium battery copper foil. It refers to the situation that when the copper foil is peeled off from the surface of the cathode roller, the foil tears from the edge to the middle of the foil, which directly leads to broken foil and inability to be rolled up normally. After the edge tearing, the residual foil adheres to the surface of the cathode roller and enters the electrolytic cell as the cathode roller rotates, which can easily cause a short circuit between the cathode and anode of the electrolytic cell, causing a major accident. The main reason for the edge tearing of the copper foil is that when the foil is peeled off from the surface of the cathode roller, the bonding force between the copper foil and the edge of the cathode roller is too large. There are many reasons for the excessive bonding force, such as electroplating edge effect, copper plating on the titanium edge of the cathode roller, uneven copper foil deposition, etc. To address this problem, a cathode roller surface treatment device for reducing edge tearing is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a cathode roller surface treatment device that reduces tearing, so as to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical solutions: a cathode roller surface treatment device that reduces tearing, comprising a base, the top left and right sides of the base are respectively provided with fixed boxes, the inner cavities of the two fixed boxes are both provided with lifting components, a housing is provided between the two lifting components, the inner cavity of the housing is provided with an adjustment component, the left and right sides of the rear end of the adjustment component respectively extend to the left and right sides of the rear end of the housing and are respectively fixedly connected with nozzles, and the two nozzles are connected to a storage tank filled with weak hydrochloric acid.

[0005] Preferably, wheels are provided at the four corners of the bottom end of the base, and the wheels are self-locking universal wheels.

[0006] Preferably, the lifting assembly includes a second motor, a screw rod, a slider, a second slide, a connecting plate and a connecting assembly, the second motor is arranged at the bottom end of the inner cavity of the fixed box, one end of the screw rod is rotatably connected to the top end of the inner cavity of the casing through a bearing, the other end of the screw rod is fixedly connected to the output end of the second motor, the slider is screwed to the outer wall of the screw rod, the second slide is opened on one side of the outer wall of the fixed box, the connecting plate can be slidably embedded in the inner cavity of the second slide, the connecting assembly is arranged on the inner wall of the fixed box and fixedly connected to the slider, and the two ends of the connecting plate are respectively fixedly connected to the slider and the casing.

[0007] Preferably, the connection assembly includes a connection groove and a connection block, the connection groove is opened on the inner wall of the fixed box, and the connection block is slidably embedded in the inner cavity of the connection groove and fixedly connected to the outer wall of the sliding block.

[0008] Preferably, the adjusting assembly includes a first motor, a gear, a limit assembly, a rack, a first slide and a connecting rod. The first motor is arranged at the front end of the casing, and the output end of the first motor extends to the inner cavity of the casing and is rotatably connected to the rear side of the inner cavity of the casing through a bearing. The gear is fixedly sleeved on the output end of the first motor, and the two limit assemblies are respectively arranged on the upper and lower sides of the inner cavity of the casing, and the two racks are respectively arranged on the side where the two limit assemblies are close to each other and are meshed with the gears. The two first slides are respectively opened on the left and right sides of the rear end of the casing, and the two connecting rods are respectively slidably embedded in the inner cavities of the two first slides, and one end of the two connecting rods is respectively fixedly connected to the two racks, and the other end of the two connecting rods is respectively fixedly connected to the two nozzles.

[0009] Preferably, each of the limiting components includes a limiting slot and a limiting block, the limiting slot is opened on one side of the inner wall of the casing, and the limiting block is slidably embedded in the inner cavity of the limiting slot and fixedly connected to one of the racks.

[0010] Preferably, the inner cavity of the limiting groove and the outer wall of the limiting block are matched and both are in a "T" shape.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. Through the setting of the nozzle, a weak hydrochloric acid solution can be sprayed on the left and right sides of the cathode roller to accelerate the oxidation of the left and right sides of the cathode roller, reduce the bonding force between the edge deposited copper foil and the cathode roller surface, reduce the probability of edge tearing when the lithium battery copper foil is peeled off, improve the yield rate, and solve the problem of excessive bonding force between the copper foil and the edge of the cathode roller and tearing when the foil is peeled off from the cathode roller surface. Through the setting of the adjustment component, the distance between the two nozzles can be adjusted, which is convenient for adjusting the distance between the two nozzles according to the length of different cathode rollers, thereby improving the flexibility of the device during use. Through the setting of the lifting component, the height of the nozzle can be adjusted, which is convenient for adjusting the height of the nozzle according to cathode rollers of different heights, thereby further improving the flexibility of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 This is a front sectional view of the fixed box of the utility model;

[0015] Figure 3 This is a front cross-sectional view of the housing of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the gear of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the slideway and the connecting rod of the utility model.

[0018] In the figure: 1, base; 2, fixing box; 3, casing; 4, nozzle; 5, wheel; 6, first motor; 7, gear; 8, limit groove; 9, limit block; 10, rack; 11, first slide; 12, connecting rod; 13, second motor; 14, screw rod; 15, slider; 16, second slide; 17, connecting plate; 18, connecting groove; 19, connecting block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 5The utility model provides a technical solution: a cathode roller surface treatment device for reducing tearing, comprising a base 1, a fixed box 2 is respectively arranged on the left and right sides of the top of the base 1, the inner cavities of the two fixed boxes 2 are both provided with a lifting assembly, a shell 3 is arranged between the two lifting assemblies, an adjusting assembly is arranged in the inner cavity of the shell 3, the left and right sides of the rear end of the adjusting assembly extend to the left and right sides of the rear end of the shell 3 respectively and are respectively fixedly connected with a nozzle 4, the two nozzles 4 are connected to a storage tank filled with weak hydrochloric acid, and through the arrangement of the nozzle 4, the weak hydrochloric acid solution can be sprayed on the left and right sides of the cathode roller to accelerate the oxidation of the left and right sides of the cathode roller , which reduces the bonding force between the edge deposited copper foil and the cathode roller surface, reduces the probability of edge tearing when the lithium battery copper foil is peeled off, improves the yield rate, and solves the problem of excessive bonding force between the copper foil and the edge of the cathode roller and tearing when the foil is peeled off from the cathode roller surface. By setting the adjustment component, the distance between the two nozzles 4 can be adjusted, which is convenient for adjusting the distance between the two nozzles 4 according to the length of different cathode rollers, thereby improving the flexibility of the device when in use. By setting the lifting component, the height of the nozzle 4 can be adjusted, which is convenient for adjusting the height of the nozzle 4 according to cathode rollers of different heights, thereby further improving the flexibility of the device when in use.

[0021] In this embodiment, wheels 5 are disposed at the four corners of the bottom end of the base 1, and the wheels 5 are self-locking universal wheels.

[0022] In this embodiment, the lifting assembly includes a second motor 13, a screw rod 14, a slider 15, a second slide 16, a connecting plate 17 and a connecting assembly. The second motor 13 is arranged at the bottom end of the inner cavity of the fixed box 2, one end of the screw rod 14 is rotatably connected to the top of the inner cavity of the casing 3 through a bearing, and the other end of the screw rod 14 is fixedly connected to the output end of the second motor 13. The slider 15 is screwed to the outer wall of the screw rod 14, and the second slide 16 is opened on one side of the outer wall of the fixed box 2. The connecting plate 17 is slidably embedded in the inner cavity of the second slide 16, and the connecting assembly is arranged on the inner wall of the fixed box 2 It is fixedly connected to the slider 15, and the two ends of the connecting plate 17 are fixedly connected to the slider 15 and the casing 3 respectively. The second motor 13 is started to make the second motor 13 drive the screw rod 14 to rotate. Under the action of the rotational force of the thread on the outer wall of the screw rod 14, when the screw rod 14 rotates, the slider 15 can slide up and down along a straight line under the limiting action of the connecting groove 18 and the connecting block 19, and then the connecting plate 17 drives the casing 3 and the nozzle 4 to slide up and down, which is convenient for adjusting the height of the nozzle 4 according to the cathode rollers of different heights, and further improves the flexibility of the device when in use.

[0023] In this embodiment, the connecting assembly includes a connecting groove 18 and a connecting block 19. The connecting groove 18 is opened on the inner wall of the fixed box 2. The connecting block 19 can be slidably embedded in the inner cavity of the connecting groove 18 and fixedly connected to the outer wall of the slider 15. Under the joint action of the connecting block 19 and the connecting groove 18, the slider 15 can be prevented from rotating with the screw rod 14 when the screw rod 14 rotates, thereby improving the stability of the lifting assembly when in use.

[0024] In this embodiment, the adjustment component includes a first motor 6, a gear 7, a limit assembly, a rack 10, a first slide 11 and a connecting rod 12. The first motor 6 is arranged at the front end of the casing 3, and the output end of the first motor 6 extends to the inner cavity of the casing 3 and is rotatably connected to the rear side of the inner cavity of the casing 3 through a bearing. The gear 7 is fixedly sleeved on the output end of the first motor 6. The two limit assemblies are respectively arranged on the upper and lower sides of the inner cavity of the casing 3. The two racks 10 are respectively arranged on the side where the two limit assemblies are close to each other and are meshed with the gear 7. The two first slides 11 are respectively opened on the left and right sides of the rear end of the casing 3. The two connecting rods 12 are respectively slidably embedded in the two first In the inner cavity of the slide 11, one end of the two connecting rods 12 is fixedly connected to the two racks 10 respectively, and the other ends of the two connecting rods 12 are fixedly connected to the two nozzles 4 respectively. The first motor 6 is started to make the first motor 6 drive the gear 7 to rotate. Since the two racks 10 are engaged with the gear 7, when the gear 7 rotates, the two racks 10 can slide relative to each other at the same time under the limiting action of the limiting groove 8 and the limiting block 9, and then the two connecting rods 12 respectively drive the two nozzles 4 to slide relative to each other, so that the distance between the two nozzles 4 can be adjusted, which is convenient for adjusting the distance between the two nozzles 4 according to the length of different cathode rollers, thereby improving the flexibility of the device when in use.

[0025] In this embodiment, each limit assembly includes a limit slot 8 and a limit block 9. The limit slot 8 is opened on one side of the inner wall of the casing 3. The limit block 9 can be slidably embedded in the inner cavity of the limit slot 8 and fixedly connected to one of the racks 10. Under the joint action between the limit block 9 and the limit slot 8, the rack 10 can always slide along a straight line, thereby improving the stability of the adjustment assembly during use.

[0026] In this embodiment, the inner cavity of the limit groove 8 is matched with the outer wall of the limit block 9 and both are in a "T" shape, so that one end of the limit block 9 can always remain embedded in the inner cavity of the limit groove 8, preventing the limit block 9 from escaping from the inner cavity of the limit groove 8, causing the rack 10 to move out of engagement with the gear 7.

[0027] The use method and advantages of the utility model: When in use, the working process is as follows:

[0028] By setting the nozzle 4, the weak hydrochloric acid solution can be sprayed on the left and right sides of the cathode roller to accelerate the oxidation of the left and right sides of the cathode roller, so that the bonding force between the edge deposited copper foil and the cathode roller surface is reduced, the probability of edge tearing when the lithium battery copper foil is peeled off is reduced, the yield rate is improved, and the problem of excessive bonding force between the copper foil and the edge of the cathode roller and tearing when the foil is peeled off from the cathode roller surface is solved. The first motor 6 is started to drive the gear 7 to rotate. Since the two racks 10 are meshed with the gear 7, when the gear 7 rotates, the two racks 10 can slide relatively at the same time under the limiting action of the limiting groove 8 and the limiting block 9, so that the two connecting rods 12 respectively drive the two sprays. The heads 4 slide relative to each other, so that the distance between the two nozzles 4 can be adjusted, which is convenient for adjusting the distance between the two nozzles 4 according to the length of different cathode rollers, thereby improving the flexibility of the device when in use. The second motor 13 is started, so that the second motor 13 drives the screw rod 14 to rotate. Under the action of the rotational force of the thread on the outer wall of the screw rod 14, when the screw rod 14 rotates, the slider 15 can slide up and down along a straight line under the limiting action of the connecting groove 18 and the connecting block 19, and then the connecting plate 17 drives the casing 3 and the nozzle 4 to slide up and down, which is convenient for adjusting the height of the nozzle 4 according to the cathode rollers of different heights, thereby further improving the flexibility of the device when in use.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cathode roller surface treatment device for reducing edge tearing, comprising a base (1), characterized in that: The top left and right sides of the base (1) are respectively provided with fixed boxes (2), the inner cavities of the two fixed boxes (2) are both provided with lifting components, a casing (3) is provided between the two lifting components, the inner cavity of the casing (3) is provided with an adjustment component, the rear left and right sides of the adjustment component respectively extend to the rear left and right sides of the casing (3) and are respectively fixedly connected with nozzles (4), and the two nozzles (4) are both connected to a storage tank filled with weak hydrochloric acid.

2. A cathode roller surface treatment device for reducing edge tearing according to claim 1, characterized in that: Wheels (5) are arranged at the four corners of the bottom end of the base (1), and the wheels (5) are self-locking universal wheels.

3. The cathode roller surface treatment device for reducing edge tearing according to claim 1, characterized in that: The lifting assembly comprises a second motor (13), a screw rod (14), a slider (15), a second slideway (16), a connecting plate (17) and a connecting assembly, wherein the second motor (13) is arranged at the bottom end of the inner cavity of the fixed box (2), one end of the screw rod (14) is rotatably connected to the top end of the inner cavity of the casing (3) through a bearing, and the other end of the screw rod (14) is fixedly connected to the output end of the second motor (13), the slider (15) is screwed to the outer wall of the screw rod (14), the second slideway (16) is opened on one side of the outer wall of the fixed box (2), and the connecting plate (17) is slidably embedded in the inner cavity of the second slideway (16), the connecting assembly is arranged on the inner wall of the fixed box (2) and is fixedly connected to the slider (15), and the two ends of the connecting plate (17) are respectively fixedly connected to the slider (15) and the casing (3).

4. The cathode roller surface treatment device for reducing edge tearing according to claim 3, characterized in that: The connection assembly comprises a connection groove (18) and a connection block (19); the connection groove (18) is provided on the inner wall of the fixed box (2); the connection block (19) is slidably embedded in the inner cavity of the connection groove (18) and fixedly connected to the outer wall of the slider (15).

5. The cathode roller surface treatment device for reducing edge tearing according to claim 1, characterized in that: The adjustment component comprises a first motor (6), a gear (7), a limit assembly, a rack (10), a first slideway (11) and a connecting rod (12); the first motor (6) is arranged at the front end of the casing (3); the output end of the first motor (6) extends to the inner cavity of the casing (3) and is rotatably connected to the rear side of the inner cavity of the casing (3) through a bearing; the gear (7) is fixedly sleeved on the output end of the first motor (6); the two limit assemblies are respectively arranged on the upper and lower sides of the inner cavity of the casing (3); the two racks (10) are respectively arranged on the sides of the two limit assemblies close to each other and are meshed with the gear (7); the two first slideways (11) are respectively opened on the left and right sides of the rear end of the casing (3); the two connecting rods (12) are respectively slidably embedded in the inner cavities of the two first slideways (11); one end of the two connecting rods (12) is respectively fixedly connected to the two racks (10); and the other end of the two connecting rods (12) is respectively fixedly connected to the two nozzles (4).

6. The cathode roller surface treatment device for reducing edge tearing according to claim 5, characterized in that: Each of the limit assemblies comprises a limit slot (8) and a limit block (9); the limit slot (8) is provided on one side of the inner wall of the housing (3); the limit block (9) is slidably embedded in the inner cavity of the limit slot (8) and is fixedly connected to one of the racks (10).

7. The cathode roller surface treatment device for reducing edge tearing according to claim 6, characterized in that: The inner cavity of the limiting groove (8) is matched with the outer wall of the limiting block (9) and both are in a "T" shape.

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