Nickel-plated copper foil oil removal device and treatment system

Abstract

The utility model discloses a nickel-plated copper foil oil removal device and a treatment system. The nickel-plated copper foil oil removal device comprises a first oil removal assembly and a second oil removal assembly, the first oil removing assembly comprises a first oil removing box and a first conveying roller arranged in the first oil removing box, a first inlet used for inputting nickel-plated copper foil and a first outlet used for outputting the nickel-plated copper foil are formed in the first oil removing box, and the height of the first conveying roller is smaller than the height of the first inlet and the height of the first outlet. The second oil removing assembly comprises a second oil removing box and a spraying head arranged in the second oil removing box, and a second inlet and a second outlet are formed in the second oil removing box. According to the nickel-plated copper foil oil removal device, the nickel-plated copper foil is immersed in the oil removal liquid in the first oil removal box, a large amount of oil liquid on the surface of the nickel-plated copper foil is removed, after the nickel-plated copper foil enters the second oil removal box from the first oil removal box, the spraying head can conduct secondary oil removal on the nickel-plated copper foil, and the oil liquid left on the surface of the nickel-plated copper foil is cleaned away.

Description

Technical Field

[0001] The utility model belongs to the technical field of nickel-plated copper foil production, and particularly relates to a nickel-plated copper foil degreasing device and a processing system. Background Art

[0002] Traditional lithium-ion battery negative electrode current collectors use electrolytic copper foil. During the winding and rolling process, the copper foil's low toughness can easily cause cracks, affecting battery safety. Existing technology can improve the toughness and conductivity of the copper foil by nickel plating it, thereby enhancing overall battery performance.

[0003] After nickel plating, the surface of the nickel-plated copper foil needs to be treated. The process includes degreasing, pickling, water washing, drying and other operations. The degreasing step is generally to immerse the nickel-plated copper foil in a cleaning tank filled with degreasing liquid. After the nickel-plated copper foil is immersed in the degreasing liquid, the degreasing liquid can wash away the oil on its surface.

[0004] However, even after soaking the nickel-plated copper foil in the degreasing solution, a small amount of oil will still remain on its surface. Some of this residual oil is stubborn and cannot be removed by soaking alone. Another portion of the residual oil is because the density of the degreasing solution is greater than that of the oil itself. After removal, the oil will float on the surface of the degreasing solution. When the nickel-plated copper foil is removed from the degreasing solution, the oil on the surface of the degreasing solution will reattach to the nickel-plated copper foil.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a nickel-plated copper foil degreasing device, which is used to solve the problem that a small amount of oil still remains on the surface of the nickel-plated copper foil after being soaked in degreasing liquid.

[0007] In order to achieve the above-mentioned purpose, a specific embodiment of the present invention provides a nickel-plated copper foil degreasing device, comprising a first degreasing component and a second degreasing component. The first degreasing component comprises a first degreasing tank and a first conveying roller disposed in the first degreasing tank. The first degreasing tank is used to accommodate degreasing liquid for soaking the nickel-plated copper foil. The first degreasing tank is provided with a first inlet for inputting the nickel-plated copper foil and a first outlet for outputting the nickel-plated copper foil. The height of the first conveying roller is less than the height of the first inlet and the first outlet. The second degreasing component comprises a second degreasing tank and a spray head disposed in the second degreasing tank. The second degreasing tank is provided with a second inlet and a second outlet. The second inlet is used to receive the nickel-plated copper foil outputted from the first outlet. The second outlet is used to output the nickel-plated copper foil in the second degreasing tank. The spray head is used to remove oil from the surface of the nickel-plated copper foil.

[0008] In one or more embodiments of the present invention, an overflow port is provided on the side wall of the first deoiling tank, the height of the overflow port is greater than the height of the first conveying roller, and the first deoiling assembly also includes a collection box arranged next to the first deoiling tank and connected to the overflow port.

[0009] In one or more embodiments of the present invention, the first oil removal assembly further includes a first filter disposed in the collection box, and the height of the first filter is smaller than the height of the overflow port.

[0010] In one or more embodiments of the present invention, the first oil removal assembly further includes a water pump, a first delivery pipe communicating with the collection tank and the input end of the water pump, and a second delivery pipe communicating with the first oil removal tank and the output end of the water pump.

[0011] In one or more embodiments of the present invention, the first oil removal assembly further includes a second conveying roller disposed in the first oil removal tank. The second conveying roller is located on a side of the first conveying roller close to the first outlet and has a height greater than that of the overflow port.

[0012] In one or more embodiments of the present invention, the first oil removal assembly further includes a liquid replenishing tube connected to the collection tank.

[0013] In one or more embodiments of the present invention, the first oil removal assembly further includes a liquid level sensor disposed in the collection box.

[0014] In one or more embodiments of the present invention, the second oil removal assembly also includes a third conveying roller and a fourth conveying roller arranged in the second oil removal tank. The fourth conveying roller is arranged close to the second inlet and its height is greater than that of the third conveying roller. There are multiple spray heads and they are located on both sides of the inner common tangent of the third conveying roller and the fourth conveying roller.

[0015] In one or more embodiments of the present invention, the second oil removal assembly further includes a fifth conveying roller disposed in the second oil removal tank, the fifth conveying roller being disposed close to the second outlet and having a height greater than that of the third conveying roller.

[0016] In one or more embodiments of the present invention, the second oil removal assembly further includes a baffle disposed in the second oil removal tank, the baffle being located above the common tangent line between the third conveyor roller and the fourth conveyor roller, with the bottom end of the baffle being close to the third conveyor roller.

[0017] In one or more embodiments of the present invention, the second oil removal assembly further includes a second filter disposed at the bottom of the second oil removal tank.

[0018] Another aspect of the present invention provides a nickel-plated copper foil processing system, comprising the nickel-plated copper foil degreasing device, a pickling device, a water washing device, and a drying device. The pickling device is used to pickle the nickel-plated copper foil output from the second outlet. The water washing device is used to wash the nickel-plated copper foil output from the pickling device, and the drying device is used to dry the nickel-plated copper foil output from the water washing device.

[0019] In one or more embodiments of the present invention, the drying device includes a drying box, a sponge roller arranged in the drying box, and a dryer arranged in the drying box. The drying box is provided with a third inlet for inputting nickel-plated copper foil and a third outlet for outputting nickel-plated copper foil. The sponge roller is located on the side of the dryer close to the third inlet.

[0020] Compared with the existing technology, the utility model immerses the nickel-plated copper foil into the degreasing liquid in the first degreasing tank to remove a large amount of oil attached to its surface. After the nickel-plated copper foil enters the second degreasing tank from the first degreasing tank, the spray head can perform a second degreasing on the nickel-plated copper foil to clean off the oil remaining on the surface of the nickel-plated copper foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some of the embodiments described in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts.

[0022] Figure 1 This is a schematic structural diagram of the first oil removal component in Example 1 of the present utility model;

[0023] Figure 2 This is a schematic structural diagram of the first oil removal component in Example 1 of the present utility model;

[0024] Figure 3 This is a schematic structural diagram of the second oil removal assembly in Example 1 of the present utility model;

[0025] Figure 4 This is a schematic structural diagram of a nickel-plated copper foil processing system in Example 2 of the present utility model;

[0026] Figure 5 This is a structural diagram of the drying device in Example 2 of the present utility model.

[0027] Description of main reference numerals: 1. first oil removal assembly, 101. first oil removal tank, 1011. first inlet, 1012. first outlet, 1013. overflow port, 102. first conveying roller, 103. second conveying roller, 104. collecting tank, 105. first filter, 106. water pump, 107. first delivery pipe, 108. second delivery pipe, 109. liquid filling pipe, 1010. liquid level sensor, 2. second oil removal assembly, 201. Second oil removal tank, 2011. Second inlet, 2012. Second outlet, 202. Sprinkler head, 203. Third conveyor roller, 204. Fourth conveyor roller, 205. Fifth conveyor roller, 206. Baffle, 207. Second filter, 3. Pickling device, 4. Water washing device, 5. Drying device, 501. Drying box, 5011. Third inlet, 5012. Third outlet, 502. Sponge roller, 503. Dryer. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "vertical", "horizontal", "top", "bottom", "up", "down", "front", "back", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Example 1:

[0031] Reference Figures 1 to 3 As shown, this embodiment provides a nickel-plated copper foil degreasing device, which includes a first degreasing component 1 and a second degreasing component 2.

[0032] Specifically, the first deoiling component 1 of this embodiment includes a first deoiling tank 101 and a first conveying roller 102 arranged in the first deoiling tank 101. The first deoiling tank 101 is used to accommodate a deoiling liquid for soaking the nickel-plated copper foil. The deoiling liquid can be water or other liquids with a density greater than oil. The first deoiling tank 101 is provided with a first inlet 1011 for inputting the nickel-plated copper foil and a first outlet 1012 for outputting the nickel-plated copper foil. The height of the first conveying roller 102 is less than the heights of the first inlet 1011 and the first outlet 1012. The second oil removal component 2 includes a second oil removal tank 201 and a spray head 202 arranged in the second oil removal tank 201. The second oil removal tank 201 is provided with a second inlet 2011 and a second outlet 2012. The second inlet 2011 is used to receive the nickel-plated copper foil output by the first outlet 1012, and the second outlet 2012 is used to output the nickel-plated copper foil in the second oil removal tank 201. The spray head 202 is directed toward the nickel-plated copper foil in the second oil removal tank 201 and is used to remove residual oil on the surface of the nickel-plated copper foil.

[0033] According to the above structural design, after the nickel-plated copper foil is immersed in the degreasing liquid in the first degreasing tank 101, a large amount of oil attached to its surface can be removed. After the nickel-plated copper foil enters the second degreasing tank 201 from the first degreasing tank 101, the degreasing liquid sprayed by the spray head 202 can perform secondary degreasing on the nickel-plated copper foil and clean away the oil remaining on the surface of the nickel-plated copper foil.

[0034] The following further introduces other structures of the first oil removal component 1 in this embodiment.

[0035] Reference Figure 2 As shown, an overflow port 1013 is formed on the side wall of the first de-oiling tank 101 of this embodiment. The height of the overflow port 1013 is greater than the height of the first conveyor roller 102. In addition, the first de-oiling assembly 1 of this embodiment further includes a collection box 104, which is disposed beside the first de-oiling tank 101 and communicates with the overflow port 1013.

[0036] After the degreasing liquid washes away the oil on the surface of the nickel-plated copper foil, the oil floats on the surface of the degreasing liquid due to the density of the degreasing liquid being greater than that of the oil. When the liquid level of the degreasing liquid is greater than the height of the overflow port 1013, the oil floating on the degreasing liquid will flow into the collection box 104 through the overflow port 1013, clearing the oil accumulated in the first degreasing tank 101 and reducing the oil that re-adheres to the surface of the nickel-plated copper foil when it is separated from the degreasing liquid.

[0037] After the oil flows into the collection tank 104 through the overflow port 1013, it carries away a large amount of de-oiled liquid. To facilitate the recycling of the de-oiled liquid in the collection tank 104, the first de-oiling assembly 1 of this embodiment further includes a first filter 105. The first filter 105 is disposed within the collection tank 104, and the height of the first filter 105 is less than that of the overflow port 1013. After the de-oiled liquid in the first de-oiling tank 101 enters the collection tank 104 through the overflow port 1013, the de-oiled liquid can directly fall into the first filter 105, where the activated carbon and other adsorbents within the first filter 105 filter out any contaminants in the de-oiled liquid.

[0038] Furthermore, the first degreasing assembly 1 of this embodiment further includes a water pump 106, a first delivery pipe 107, and a second delivery pipe 108. The first delivery pipe 107 is connected to the collection tank 104 and the input end of the water pump 106, and the second delivery pipe 108 is connected to the first degreasing tank 101 and the output end of the water pump 106. After the water pump 106 is started, the degreasing liquid in the collection tank 104 can be transferred back to the first degreasing tank 101 through the first delivery pipe 107 and the second delivery pipe 108, thereby recycling the degreasing liquid.

[0039] Since the nickel-plated copper foil will carry away a portion of the degreasing liquid when it leaves the first degreasing tank 101, the volume of the degreasing liquid in the collection tank 104 will gradually decrease, and it is impossible to provide sufficient degreasing liquid to the first degreasing tank 101. To solve this problem, refer to Figure 1 As shown, the first degreasing assembly 1 of this embodiment further includes a liquid replenishing pipe 109 connected to the collection box 104 , through which the degreasing liquid can be replenished into the collection box 104 , and then indirectly replenished into the first degreasing tank 101 .

[0040] Furthermore, in order to facilitate the knowledge of the timing for replenishing the degreasing liquid into the collection box 104, the first degreasing component 1 of this embodiment also includes a liquid level sensor 1010 provided in the collection box 104. The operator can clearly know the liquid level height of the degreasing liquid in the collection box 104 through the liquid level sensor 1010. When the liquid level height of the degreasing liquid in the collection box 104 is at a low level, the operator can replenish a certain amount of degreasing liquid into the collection box 104.

[0041] Reference Figure 1 As shown, the first degreasing assembly 1 of this embodiment further includes a second conveyor roller 103 disposed within the first degreasing tank 101. The second conveyor roller 103 is located on the side of the first conveyor roller 102 near the first outlet 1012 and is taller than the overflow outlet 1013. Furthermore, the second conveyor roller 103 is adapted to be mounted above the level of the degreasing liquid within the first degreasing tank 101, thereby facilitating the transfer of the nickel-plated copper foil from the degreasing liquid within the first degreasing tank 101 via the second conveyor roller 103.

[0042] The following further introduces other structures of the second oil removal component 2 in this embodiment.

[0043] Reference Figure 3 As shown, the second oil removal component 2 of this embodiment also includes a third conveyor roller 203 and a fourth conveyor roller 204 arranged in the second oil removal tank 201. The fourth conveyor roller 204 is arranged near the second inlet 2011 and its height is greater than the height of the third conveyor roller 203. The spray heads 202 are provided in plurality and are located on both sides of the inner common tangent of the third conveyor roller 203 and the fourth conveyor roller 204, that is, the spray heads 202 are suitable for being arranged on the top and bottom surfaces of the nickel-plated copper foil so as to remove the oil on both sides of the nickel-plated copper foil at the same time.

[0044] Furthermore, the second degreasing assembly 2 of this embodiment further includes a fifth conveyor roller 205 disposed within the second degreasing tank 201. The fifth conveyor roller 205 is positioned near the second outlet 2012 and is taller than the third conveyor roller 203. The third, fourth, and fifth conveyor rollers 203, 204, and 205 are arranged roughly at the corners of an inverted triangle. The third conveyor roller 203 is positioned relatively closer to the bottom of the second degreasing tank 201, allowing the degreasing liquid used to rinse the nickel-plated copper foil to quickly fall to the bottom of the second degreasing tank 201.

[0045] Since the degreasing liquid sprayed onto the nickel-plated copper foil may cause splashing, the oil carried by the degreasing liquid may be splashed back onto the nickel-plated copper foil on the fourth conveyor roller 204 and the fifth conveyor roller 205. To solve this problem, refer to Figure 2 As shown, the second degreasing component 2 of this embodiment also includes a baffle 206 arranged in the second degreasing tank 201, and the baffle 206 is located above the common tangent line of the third conveying roller 203 and the fourth conveying roller 204. The bottom end of the baffle 206 is close to the third conveying roller 203, and the baffle 206 is used to intercept the above-mentioned splashed degreasing liquid and the oil it carries.

[0046] Furthermore, in practical applications, in the axial direction of the third conveying roller 203 , the length of the baffle 206 should be no less than the length of the nickel-plated copper foil, so that the baffle 206 covers the nickel-plated copper foil as much as possible.

[0047] Reference Figure 3 As shown, the second oil removal component 2 of this embodiment also includes a second filter 207 arranged at the bottom of the second oil removal tank 201. The second filter 207 can filter the oil removal liquid accumulated in the second oil removal tank 201 and remove the oil mixed in the oil removal liquid to facilitate the recycling of the oil removal liquid accumulated in the second oil removal tank 201.

[0048] Example 2:

[0049] Reference Figure 4 and Figure 5As shown, this embodiment provides a nickel-plated copper foil processing system, which includes the nickel-plated copper foil degreasing device of the first embodiment, a pickling device 3, a water washing device 4, and a drying device 5. The pickling device 3 is used to pickle the nickel-plated copper foil output from the second outlet 2012, the water washing device 4 is used to wash the nickel-plated copper foil output from the pickling device 3, and the drying device 5 is used to dry the nickel-plated copper foil output from the water washing device 4.

[0050] Reference Figure 5 As shown, the drying device 5 of this embodiment includes a drying box 501, a sponge roller 502 and a dryer 503. The drying box 501 is provided with a third inlet 5011 for inputting nickel-plated copper foil and a third outlet 5012 for outputting nickel-plated copper foil. The sponge roller 502 and the dryer 503 are both arranged in the drying box 501, the sponge roller 502 is relatively close to the third inlet 5011, and the dryer 503 is relatively close to the third outlet 5012, that is, the sponge roller 502 is arranged on the side of the dryer 503 close to the third inlet 5011.

[0051] Furthermore, in this embodiment, multiple sponge rollers 502 are provided, and are basically divided into two layers, and the single sponge roller 502 in the lower layer and the two sponge rollers 502 in the upper layer on both sides thereof are basically distributed in an inverted triangle.

[0052] Furthermore, a height difference between the center of the upper sponge roller 502 and the center of the lower sponge roller 502 in the vertical direction is substantially equal to the sum of the radii of the upper sponge roller 502 and the lower sponge roller 502 .

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0054] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A nickel-plated copper foil degreasing device, characterized in that: include: A first degreasing assembly includes a first degreasing tank and a first conveying roller disposed within the first degreasing tank. The first degreasing tank is used to accommodate a degreasing liquid for soaking the nickel-plated copper foil. The first degreasing tank is provided with a first inlet for inputting the nickel-plated copper foil and a first outlet for outputting the nickel-plated copper foil. The height of the first conveying roller is smaller than the heights of the first inlet and the first outlet. The second oil removal component includes a second oil removal tank and a spray head arranged in the second oil removal tank. The second oil removal tank is provided with a second inlet and a second outlet. The second inlet is used to receive the nickel-plated copper foil output by the first outlet, and the second outlet is used to output the nickel-plated copper foil in the second oil removal tank. The spray head is used to remove the oil on the surface of the nickel-plated copper foil.

2. The nickel-plated copper foil degreasing device according to claim 1, characterized in that: An overflow port is provided on the side wall of the first deoiling tank, the height of the overflow port is greater than the height of the first conveying roller, and the first deoiling assembly further comprises a collection box provided beside the first deoiling tank and connected to the overflow port.

3. The nickel-plated copper foil degreasing device according to claim 2, characterized in that: The first oil removal assembly further includes a first filter disposed in the collection box, wherein the height of the first filter is smaller than the height of the overflow port.

4. The nickel-plated copper foil degreasing device according to claim 2, characterized in that: The first oil removal assembly further includes a water pump, a first delivery pipe communicating with the collection tank and the input end of the water pump, and a second delivery pipe communicating with the first oil removal tank and the output end of the water pump.

5. The nickel-plated copper foil degreasing device according to claim 2, characterized in that: The first oil removal assembly further includes a second conveying roller disposed in the first oil removal tank, the second conveying roller being located on a side of the first conveying roller close to the first outlet and having a height greater than that of the overflow port; and / or, The first oil removal assembly further includes a liquid replenishing pipe connected to the collection box; and / or, The first oil removal assembly further includes a liquid level sensor disposed in the collection box.

6. The nickel-plated copper foil degreasing device according to claim 1, characterized in that: The second oil removal assembly also includes a third conveying roller and a fourth conveying roller arranged in the second oil removal tank. The fourth conveying roller is arranged close to the second inlet and has a height greater than that of the third conveying roller. The spray heads are provided in plurality and are located on both sides of the inner common tangent of the third conveying roller and the fourth conveying roller.

7. The nickel-plated copper foil degreasing device according to claim 6, characterized in that: The second oil removal assembly further includes a fifth conveying roller disposed in the second oil removal tank. The fifth conveying roller is disposed close to the second outlet and has a height greater than that of the third conveying roller.

8. The nickel-plated copper foil degreasing device according to claim 6, characterized in that: The second degreasing assembly further includes a baffle disposed in the second degreasing tank, the baffle being located above a common tangent line between the third conveying roller and the fourth conveying roller, with a bottom end of the baffle being close to the third conveying roller; and / or, The second oil removal assembly further includes a second filter disposed at the bottom of the second oil removal tank.

9. A nickel-plated copper foil processing system, characterized in that: include: The nickel-plated copper foil degreasing device according to any one of claims 1 to 8; A pickling device, used for pickling the nickel-plated copper foil output from the second outlet; A water washing device, used for washing the nickel-plated copper foil output from the pickling device; The drying device is used to dry the nickel-plated copper foil output from the washing device.

10. The nickel-plated copper foil processing system according to claim 9, characterized in that: The drying device includes a drying box, a sponge roller arranged in the drying box, and a dryer arranged in the drying box. The drying box is provided with a third inlet for inputting nickel-plated copper foil and a third outlet for outputting nickel-plated copper foil. The sponge roller is located on the side of the dryer close to the third inlet.

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