Cold rolling system for aluminum foil

Abstract

The invention discloses an aluminum foil cold rolling system, which relates to the field of aluminum foil production, and comprises a support frame, one end of the top of the support frame is provided with a first roller bracket for temporarily storing an aluminum foil roll, and the other end of the top of the support frame is provided with a second roller bracket for winding the cold-rolled aluminum foil roll; two sets of rollers are rotationally installed at the position, close to one end, in the supporting frame, a cooling assembly is assembled on the side, located on the rollers, in the supporting frame, a driving motor for driving the rollers is installed on the outer wall of the supporting frame, and a limiting roller is assembled at the position, close to the other end, in the supporting frame. A wiping assembly rotationally connected with the supporting frame is arranged below the limiting roller. Cooling liquid can be evenly sprayed to the outer wall of a roller and the outer wall of an aluminum foil through the cooling assembly, the effect of cooling the roller and the aluminum foil is achieved, meanwhile, the sprayed cooling liquid is collected and can be recycled, meanwhile, the cooling liquid can achieve the cooling effect through a return pipe, and therefore the heat dissipation efficiency and quality of the roller can be guaranteed.

Description

Technical Field

[0001] The invention relates to the field of aluminum foil production, in particular to a cold rolling system for aluminum foil. Background Art

[0002] With the country's continuous investment in the new energy industry, more and more manufacturers have begun to increase their research on new energy lithium battery products. Battery tabs, one of the key materials for new energy lithium batteries, have also received more and more attention. At present, the common battery tab materials in the market are mainly 1060-O state-0.15mm pure aluminum series. This pure aluminum series has two main defects: on the one hand, mechanical properties such as tensile strength are poor, generally 75MPa, especially the elongation performance is poor, generally 14%, and the forming performance is poor, which is not conducive to subsequent processing; on the other hand, with the improvement of endurance performance by automobile manufacturers, the thickness of 0.15mm can no longer meet the energy density requirements. In the production process of aluminum foil materials for battery tabs, the battery tabs are generally thinned and the mechanical properties are enhanced through cold rolling operations.

[0003] However, during the actual cold rolling of aluminum foil, frequent contact rolling is required, and the pressing between the rollers will generate a lot of heat. Long-term pressing will cause the rollers to overheat and affect the pressing efficiency. Therefore, the coolant is generally heated during the pressing process of the cold rolling mill. After the pressing is completed, some coolant remains on the aluminum plate. If the aluminum plate is brought into the aluminum coil, it will affect the quality of the aluminum coil and ultimately affect the quality of the aluminum coil. Summary of the invention

[0004] Based on this, the object of the present invention is to provide a cold rolling system for aluminum foil to solve the technical problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cold rolling system for aluminum foil, comprising a support frame, wherein a first roller support for temporarily storing aluminum foil rolls is installed at one end of the top of the support frame, and a second roller support for rewinding the aluminum foil rolls after cold rolling is installed at the other end of the top of the support frame, two groups of rollers are rotatably installed near one end of the support frame, a cooling assembly is installed on one side of the rollers in the support frame, a driving motor for driving the rollers is installed on the outer wall of the support frame, a limiting roller is installed near the other end of the support frame, and a wiping assembly rotatably connected to the support frame is provided below the limiting roller;

[0006] The cooling assembly includes two groups of discharge pipes fixed in the support frame, and the outer wall of each group of the discharge pipes is connected to a plurality of groups of nozzles. A temporary storage tank is provided in the support frame directly below the roller, and a return pipe connected to the temporary storage tank is provided on one side of the temporary storage tank. A water pump connected to the two groups of discharge pipes is installed on the outer wall of the support frame, and a plurality of cooling fans are installed below the return pipe in the support frame;

[0007] The wiping assembly includes two groups of cleaning rollers that rotate with the support frame, and a plurality of sponge strips are fixed to the outer wall of each group of cleaning rollers. A guide frame is provided on the side away from the two groups of cleaning rollers, and an extrusion strip is fixed to the top of the guide frame near the cleaning roller. Both ends of each group of guide frames are fixed to the inner wall of the support frame, and a collecting frame is provided in the support frame just below the guide frame. The bottom end of each group of guide frames is connected to two groups of drainage pipes, and the two groups of drainage pipes are located at the bottom of the guide frame near the inner wall of the support frame.

[0008] As a preferred technical solution of a cold rolling system for aluminum foil of the present invention, the input end of the water pump is connected to the return pipe through a pipeline, and the output pipe of the water pump is connected to two groups of discharge pipes through a three-way pipe.

[0009] As a preferred technical solution for a cold rolling system of aluminum foil of the present invention, the second roller bracket and the first roller bracket are both composed of a bracket and a roller, a motor for driving the roller is installed on the outer wall of the second roller bracket, and the horizontal height of the roller in the first roller bracket is higher than that of the second roller bracket.

[0010] As a preferred technical solution for a cold rolling system of aluminum foil of the present invention, two sets of gears are installed at positions corresponding to the outer wall of the support frame and the ends of the two sets of rollers, and the gears are respectively fixed to one end of the roller away from the driving motor.

[0011] As a preferred technical solution for a cold rolling system of aluminum foil of the present invention, two sets of guide plates are fixed at the top edge of the temporary storage tank in the support frame, and the tops of the guide plates are inclined outwards.

[0012] As a preferred technical solution for a cold rolling system of aluminum foil of the present invention, a first pressing roller rotatably arranged with the inner wall of the support frame is provided at the lower left of the limiting roller, and a second pressing roller rotatably connected with the inner wall of the support frame is provided at the lower right of the limiting roller.

[0013] As a preferred technical solution for a cold rolling system of aluminum foil of the present invention, a notch is provided in the support frame at the contact position with the return tube and the cooling fan, and the cooling fan and the return tube are both fixed to the inner wall of the notch.

[0014] As a preferred technical solution for a cold rolling system of aluminum foil of the present invention, a drive motor is installed at the corresponding positions of the outer wall of the support frame and the ends of the two groups of cleaning rollers, and the output end of the drive motor is connected to the ends of the cleaning rollers through a coupling.

[0015] In summary, the present invention mainly has the following beneficial effects:

[0016] The present invention can evenly spray the coolant onto the outer wall of the roller and the outer wall of the aluminum foil through the cooling component, thereby achieving a cooling effect on the roller and the aluminum foil. At the same time, the sprayed coolant is collected and recycled. At the same time, the coolant passes through the return pipe to achieve a cooling effect, thereby ensuring the heat dissipation efficiency and quality of the roller.

[0017] The present invention tests the residual liquid on the aluminum foil after cold rolling through a wiping component, and at the same time drives the cleaning roller to rotate, so that the sponge strip that has absorbed water contacts the extrusion strip, and the water inside the sponge strip can be taken out and collected, ensuring that the sponge strip can continuously wipe the water on the outer wall of the aluminum foil, ensuring the high quality of the cold rolled and rolled aluminum foil.

[0018] The present invention cools down the circulating coolant by means of a heat dissipation fan, and at the same time, under the action of a guide plate, part of the air is directed toward the wiped power aluminum foil, thereby further accelerating the air drying efficiency of the aluminum foil, thereby ensuring the quality of the aluminum foil after cold rolling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a first perspective stereogram of the present invention;

[0020] Figure 2 It is a second viewing angle stereogram of the present invention;

[0021] Figure 3 It is a three-dimensional cutaway view of the present invention;

[0022] Figure 4 It is a partial structural diagram of the wiping assembly of the present invention;

[0023] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 It is a front cutaway plan view of the present invention.

[0025] In the figure: 100, support frame; 200, cooling assembly; 300, wiping assembly;

[0026] 101, temporary storage slot; 102, missing slot;

[0027] 110, first roller support; 120, second roller support; 130, roller; 140, limiting roller; 141, first pressing roller; 142, second pressing roller; 150, driving motor;

[0028] 210, water pump; 220, discharge pipe; 230, nozzle; 240, guide plate; 250, cooling fan; 260, return pipe;

[0029] 310, collecting frame; 320, cleaning roller; 330, drainage tube; 340, guide frame; 350, sponge bar; 360, squeezing bar. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] The following describes an embodiment of the present invention based on its overall structure.

[0032] A cold rolling system for aluminum foil, such as Figures 1 to 6 As shown, it includes a support frame 100, a first roller support 110 for temporarily storing aluminum foil rolls is installed at one end of the top of the support frame 100, a second roller support 120 for winding the aluminum foil rolls after cold rolling is installed at the other end of the top of the support frame 100, two groups of rollers 130 are rotatably installed near one end of the support frame 100, a cooling assembly 200 is installed on one side of the rollers 130 in the support frame 100, a driving motor 150 for driving the rollers 130 is installed on the outer wall of the support frame 100, a limiting roller 140 is installed near the other end of the support frame 100, and a wiping assembly 300 rotatably connected to the support frame 100 is provided below the limiting roller 140;

[0033] The cooling assembly 200 includes two groups of exhaust pipes 220 fixed in the support frame 100, and the outer wall of each group of exhaust pipes 220 is connected to a plurality of nozzles 230. A temporary storage tank 101 is provided in the support frame 100 directly below the roller 130, and a return pipe 260 connected to the temporary storage tank 101 is provided on one side of the temporary storage tank 101. A water pump 210 connected to the two groups of exhaust pipes 220 is installed on the outer wall of the support frame 100, and a plurality of cooling fans 250 are installed below the return pipe 260 in the support frame 100.

[0034] The wiping assembly 300 includes two groups of cleaning rollers 320 that rotate with the support frame 100, and a plurality of groups of sponge strips 350 are fixed to the outer wall of each group of cleaning rollers 320. A guide frame 340 is provided on the side away from the two groups of cleaning rollers 320. An extrusion strip 360 is fixed to the top of the guide frame 340 near the cleaning roller 320. Both ends of each group of guide frames 340 are fixed to the inner wall of the support frame 100. A collecting frame 310 is provided in the support frame 100 just below the guide frame 340. Two groups of drainage pipes 330 are connected to the bottom end of each group of guide frames 340. The two groups of drainage pipes 330 are located at the bottom of the guide frame 340 near the inner wall of the support frame 100. The input end of the water pump 210 is connected to the return pipe 260 through a pipeline, and the output pipe of the water pump 210 is connected to the two groups of discharge pipes 220 through a three-way pipe.

[0035] Two groups of guide plates 240 are fixed at the top edge of the temporary storage tank 101 in the support frame 100, and the tops of the guide plates 240 are inclined outward.

[0036] As the instruction manual Figure 6 As shown, the aluminum foil to be cold-rolled passes between the two sets of rollers 130, and is wound around the first pressing roller 141, the limiting roller 140 and the second pressing roller 142, and finally is wound around the second roller support 120, so that the aluminum foil can be cold-rolled normally;

[0037] The aluminum foil is rolled when it passes between the two groups of rollers 130. At this time, the water pump 210 extracts the coolant (water) in the temporary storage tank 101 and enters the water pump 210 through the return pipe 260, and enters the discharge pipe 220 through the water pump 210, and finally is discharged through the nozzle 230, and is sprayed on the outer wall of the roller 130 and the position of the aluminum foil to be rolled. Because two groups of discharge pipes 220 are arranged above and below, the two groups of rollers 130 can be cooled at the same time, and the coolant left from the outer wall of the roller 130 and the aluminum foil will flow to the temporary storage tank 101 below, and under the constraint of the guide plate 240, it is avoided that the coolant is spilled with the movement of the aluminum foil, so that the cooling liquid is recycled and reused;

[0038] When the coolant in the temporary storage tank 101 is drawn into the return pipe 260, the cooling fan 250 will accelerate the air flow around the return pipe 260, and the return pipe 260 is preferably a relatively thin pipe, which can extend the blowing time and heat dissipation efficiency, and ensure that the temperature of the coolant reused is relatively low, so that the roller 130 and the aluminum foil can be better cooled;

[0039] After passing through the rollers, the aluminum foil moves along the track formed by the first pressing roller 141, the limiting roller 140 and the second pressing roller 142. At this time, the two sets of cleaning rollers 320 rotate in a direction opposite to the aluminum foil, and the sponge strips 350 on the outer wall thereof come into contact with the aluminum foil, thereby absorbing the residual liquid (coolant) on the aluminum foil. When the sponge strips 350 after absorbing the liquid are squeezed by the squeezing strips 360 along the transmission of the cleaning rollers 320, the water inside the sponge strips 350 flows into the guide frame 340 along the squeezing strips 360. At this time, the sponge strips 350 from which the water has been removed come into contact with the aluminum foil again, thereby completing the effect of wiping the water.

[0040] The liquid entering the guide frame 340 will flow downward through the drainage pipe 330 until it enters the collection frame 310. When a certain amount of liquid is accumulated, it can be manually taken out and introduced into the temporary storage tank 101 for recycling, thereby achieving the purpose of saving cooling.

[0041] While the cooling fan 250 is working to accelerate the air flow, under the action of the guide plate 240, part of the air will approach the wiped aluminum foil, thereby further accelerating the air drying efficiency of the aluminum foil, thereby ensuring the quality of the aluminum foil after cold rolling.

[0042] Please refer to Figure 1 , Figure 2 and Figure 3 The second roller bracket 120 and the first roller bracket 110 are both composed of a bracket and a roller. A motor for driving the roller is installed on the outer wall of the second roller bracket 120. The horizontal height of the roller in the first roller bracket 110 is higher than that of the second roller bracket 120.

[0043] The second roller bracket 120 and the first roller bracket 110 have brackets and rollers that are movably connected, and the existing technology is used to realize the loading and unloading of the aluminum foil roll. The motor in the second roller bracket 120 provides power to the cold-rolled aluminum foil so that it is wound on the roller, and the first roller bracket 110 with a relatively high horizontal height prevents the coolant sprayed on the rolling roller 130 from being discharged outside the device.

[0044] Please refer to Figure 1 Two sets of gears are installed at the corresponding positions of the outer wall of the support frame 100 and the ends of the two sets of rollers 130, and the gears are respectively fixed to the ends of the rollers 130 away from the driving motor 150.

[0045] By utilizing the meshing transmission between the two sets of gears, the two sets of rollers 130 rotate in different directions, so that a traction force to one side can be generated on the aluminum foil to achieve the final cold rolling effect.

[0046] Please refer to Figure 3 and Figure 6 A first pressing roller 141 rotatably arranged with the inner wall of the support frame 100 is provided at the lower left of the limiting roller 140 , and a second pressing roller 142 rotatably connected with the inner wall of the support frame 100 is provided at the lower right of the limiting roller 140 .

[0047] The cold-rolled aluminum foil moves along the set trajectory, ultimately achieving the desired purpose of wiping residual moisture.

[0048] Please refer to Figure 6 A notch 102 is provided in the support frame 100 at a position where the return tube 260 and the heat dissipation fan 250 are in contact with each other, and the heat dissipation fan 250 and the return tube 260 are both fixed to the inner wall of the notch 102 .

[0049] Please refer to Figure 1 A driving motor is installed at the corresponding positions of the outer wall of the support frame 100 and the ends of the two groups of cleaning rollers 320, and the output end of the driving motor is connected to the ends of the cleaning rollers 320 through a coupling.

[0050] By utilizing the power provided by the driving motor, the rotation direction of the cleaning roller 320 is opposite to the moving direction of the aluminum foil, so that the residual liquid on the aluminum foil can be completely wiped.

[0051] When in use, the aluminum foil to be cold rolled passes between the two sets of rollers 130, and is wound around the first pressing roller 141, the limiting roller 140 and the second pressing roller 142, and finally wound around the second roller support 120, so that the aluminum foil can be cold rolled normally (as shown in the attached manual). Figure 6 shown);

[0052] The aluminum foil is rolled when it passes between the two groups of rollers 130. At this time, the water pump 210 extracts the coolant (water) in the temporary storage tank 101 and enters the water pump 210 through the return pipe 260, and enters the discharge pipe 220 through the water pump 210, and finally is discharged through the nozzle 230, and is sprayed on the outer wall of the roller 130 and the position of the aluminum foil to be rolled. Because two groups of discharge pipes 220 are arranged above and below, the two groups of rollers 130 can be cooled at the same time, and the coolant left from the outer wall of the roller 130 and the aluminum foil will flow to the temporary storage tank 101 below, and under the constraint of the guide plate 240, it is avoided that the coolant is spilled with the movement of the aluminum foil, so that the cooling liquid is recycled and reused;

[0053] When the coolant in the temporary storage tank 101 is drawn into the return pipe 260, the cooling fan 250 will accelerate the air flow around the return pipe 260, and the return pipe 260 is preferably a relatively thin pipe, which can extend the blowing time and heat dissipation efficiency, and ensure that the temperature of the coolant reused is relatively low, so that the roller 130 and the aluminum foil can be better cooled;

[0054] After passing through the rollers, the aluminum foil moves along the track formed by the first pressing roller 141, the limiting roller 140 and the second pressing roller 142. At this time, the two sets of cleaning rollers 320 rotate in a direction opposite to the aluminum foil, and the sponge strips 350 on the outer wall thereof come into contact with the aluminum foil, thereby absorbing the residual liquid (coolant) on the aluminum foil. When the sponge strips 350 after absorbing the liquid are squeezed by the squeezing strips 360 along the transmission of the cleaning rollers 320, the water inside the sponge strips 350 flows into the guide frame 340 along the squeezing strips 360. At this time, the sponge strips 350 from which the water has been removed come into contact with the aluminum foil again, thereby completing the effect of wiping the water.

[0055] The liquid entering the guide frame 340 will flow downward through the drainage pipe 330 until it enters the collection frame 310. When a certain amount of liquid is accumulated, it can be manually taken out and introduced into the temporary storage tank 101 for recycling, thereby achieving the purpose of saving cooling.

[0056] While the cooling fan 250 is working to accelerate the air flow, under the action of the guide plate 240, part of the air will approach the wiped aluminum foil, thereby further accelerating the air drying efficiency of the aluminum foil, thereby ensuring the quality of the aluminum foil after cold rolling.

[0057] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A cold rolling system for aluminum foil, comprising a support frame (100), characterized in that: A first roller support (110) for temporarily storing the aluminum foil roll is installed at one end of the top of the support frame (100), and a second roller support (120) for rolling up the aluminum foil roll after cold rolling is installed at the other end of the top of the support frame (100). Two groups of rollers (130) are rotatably installed near one end of the support frame (100), a cooling assembly (200) is installed on one side of the rollers (130) in the support frame (100), a driving motor (150) for driving the rollers (130) is installed on the outer wall of the support frame (100), and a limiting roller (140) is installed near the other end of the support frame (100), and a wiping assembly (300) rotatably connected to the support frame (100) is provided below the limiting roller (140); The cooling assembly (200) comprises two groups of discharge pipes (220) fixed in a support frame (100), the outer wall of each group of the discharge pipes (220) being connected to a plurality of groups of nozzles (230), a temporary storage tank (101) being provided in the support frame (100) at a position directly below the rolling roller (130), a return pipe (260) connected to the temporary storage tank (101) being provided on one side of the temporary storage tank (101), a water pump (210) connected to the two groups of discharge pipes (220) being installed on the outer wall of the support frame (100), and a plurality of groups of cooling fans (250) being installed in the support frame (100) below the return pipe (260); The wiping assembly (300) comprises two groups of cleaning rollers (320) rotating with the support frame (100), a plurality of groups of sponge strips (350) being fixed to the outer wall of each group of the cleaning rollers (320), a guide frame (340) being provided on the side away from the two groups of the cleaning rollers (320), a squeezing strip (360) being fixed at the top of the guide frame (340) close to the position of the cleaning rollers (320), two ends of each group of the guide frames (340) being fixed to the inner wall of the support frame (100), a collecting frame (310) being provided in the support frame (100) directly below the guide frames (340), two groups of drainage pipes (330) being connected to the bottom end of each group of the guide frames (340), the two groups of drainage pipes (330) being located at the bottom of the guide frames (340) close to the inner wall of the support frame (100).

2. A cold rolling system for aluminum foil according to claim 1, characterized in that: The input end of the water pump (210) is connected to the return pipe (260) through a pipeline, and the output pipe of the water pump (210) is connected to the two groups of discharge pipes (220) through a three-way pipe.

3. The cold rolling system for aluminum foil according to claim 1, characterized in that: The second roller bracket (120) and the first roller bracket (110) are both composed of a bracket and a roller, a motor for driving the roller is installed on the outer wall of the second roller bracket (120), and the horizontal height of the roller in the first roller bracket (110) is higher than that of the second roller bracket (120).

4. The cold rolling system for aluminum foil according to claim 1, characterized in that: Two sets of gears are mounted at positions corresponding to the outer wall of the support frame (100) and the ends of the two sets of rollers (130), and the gears are respectively fixed to one end of the rollers (130) away from the driving motor (150).

5. The cold rolling system for aluminum foil according to claim 1, characterized in that: Two groups of guide plates (240) are fixed at the top edge of the temporary storage tank (101) in the support frame (100), and the tops of the guide plates (240) are arranged to be inclined outwards.

6. The cold rolling system for aluminum foil according to claim 1, characterized in that: A first pressing roller (141) rotatably arranged with the inner wall of the support frame (100) is provided at the lower left of the limiting roller (140), and a second pressing roller (142) rotatably connected with the inner wall of the support frame (100) is provided at the lower right of the limiting roller (140).

7. The cold rolling system for aluminum foil according to claim 1, characterized in that: A notch (102) is provided in the support frame (100) at a position where the notch contacts the return tube (260) and the heat dissipation fan (250), and the heat dissipation fan (250) and the return tube (260) are both fixed to the inner wall of the notch (102).

8. The cold rolling system for aluminum foil according to claim 1, characterized in that: A driving motor is installed at positions corresponding to the outer wall of the support frame (100) and the ends of the two groups of cleaning rollers (320); the output end of the driving motor is connected to the ends of the cleaning rollers (320) via a coupling.

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