Special-shaped lithium strip rolling and shaping device

Abstract

The utility model discloses a special-shaped lithium strip rolling and shaping device which is sequentially provided with a lithium strip placing mechanism and a special-shaped rolling mechanism along a processing path, the lithium strip placing mechanism is used for placing a lithium ingot; the special-shaped rolling mechanism comprises a first special-shaped roller and a second special-shaped roller which can move towards each other and away from each other, the outer surface of one of the first special-shaped roller and the second special-shaped roller is provided with a circumferentially-arranged convex strip, the outer surface of the other one of the first special-shaped roller and the second special-shaped roller is provided with a circumferentially-arranged groove, and the convex strip and the groove are oppositely arranged. The convex strips are matched with the grooves to press indentations on the lithium strip; after the scheme is adopted, the problem of poor production quality of the existing rolling and shaping device can be solved, the rigidity of a lithium strip can be improved, the tension control of unwinding of the rolled lithium strip can be better controlled, the flowability of lithium can be reduced, the problem of material stacking in the rolling process can be better solved through indentations, the rolling speed can be increased, and the production efficiency and the qualified rate can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium strip rolling and shaping, in particular to a special-shaped lithium strip rolling and shaping device. Background Art

[0002] The current production process of lithium ribbons on the market is extrusion. Lithium ingots are extruded into shape through high-pressure molds. After extrusion, because the density of lithium is relatively small, there will be many voids and looseness in the extruded lithium ribbons. If they are further rolled into ultra-thin lithium ribbons, piles of materials will occur. The produced and processed lithium ribbons will have many tiny holes and pitting, which will affect the product quality.

[0003] Specifically, the lithium ribbon currently produced on the market is directly subjected to multiple calendering and roller pressing (double roller differential speed) friction after being extruded to achieve the purpose of producing ultra-thin lithium ribbon, but this production process has the following defects:

[0004] 1. Excessive calendering differential speed can easily cause problems such as material pile-up, edge cracking, and pitting.

[0005] 2. When the length reaches a certain level, the material must be replaced, and less than 200 meters can be produced at a time;

[0006] 3. It is easy to have wavy edges, cracked edges and other phenomena on the edges. Utility Model Content

[0007] The purpose of the utility model is to provide a special-shaped lithium strip rolling and shaping device to solve the problem of poor production quality of the existing rolling and shaping devices.

[0008] In order to solve the above technical problems, the utility model provides a special-shaped lithium strip rolling and shaping device. Along the processing path, the special-shaped lithium strip rolling and shaping device is sequentially provided with a lithium strip placing mechanism and a special-shaped rolling mechanism; the lithium strip placing mechanism is used to place lithium ingots; the special-shaped rolling mechanism includes a first special-shaped roller and a second special-shaped roller that can move toward and away from each other, one of the first special-shaped roller and the second special-shaped roller has a circumferentially arranged convex strip on its outer surface, and the other of the first special-shaped roller and the second special-shaped roller has a circumferentially arranged groove on its outer surface, the convex strip and the groove are arranged opposite to each other, and the cooperation between the convex strip and the groove is used to press indentations on the lithium strip.

[0009] In one embodiment, there are multiple protrusions and multiple grooves, and the multiple protrusions are aligned with the multiple grooves respectively.

[0010] In one embodiment, the special-shaped rolling mechanism further includes a heating rod, and at least one of the first special-shaped roller and the second special-shaped roller is rollingly mounted on the heating rod.

[0011] In one embodiment, the special-shaped rolling mechanism further includes an oiling module, and the oiling module is used to oil the lithium strip roll-formed by the special-shaped rolling mechanism.

[0012] In one embodiment, along the processing path, the special-shaped lithium strip rolling and shaping device is provided with the lithium strip placing mechanism, the special-shaped rolling mechanism, the air cooling mechanism, the cutting mechanism, the secondary rolling mechanism and the thickness measuring mechanism in sequence.

[0013] In one embodiment, the blowing direction of the air cooling mechanism is aligned with the bottom of the lithium strip roll-formed by the special-shaped rolling mechanism.

[0014] In one embodiment, the cutting mechanism includes two cutting rollers that can move toward and away from each other, and both ends of the two cutting rollers are provided with rollers.

[0015] In one embodiment, the secondary rolling mechanism includes two upper pressing rollers and two lower pressing rollers; the two upper pressing rollers are arranged above the lithium strip cut by the cutting mechanism, and the two upper pressing rollers are connected to a swing arm, which is rotatably installed on the special-shaped lithium strip rolling and shaping device, and the swing arm is used for the two upper pressing rollers to press the lithium strip by swinging down with their own weight; the two lower pressing rollers are arranged below the lithium strip cut by the cutting mechanism.

[0016] In one embodiment, the thickness measuring mechanism includes two thickness measuring sensors, which are respectively arranged on the upper and lower sides of the lithium strip after the secondary rolling, and the two thickness measuring sensors are used to detect the thickness of the lithium strip; the special-shaped rolling mechanism is provided with a pressure sensor, which is used to detect the pressure applied by the special-shaped rolling mechanism to the lithium strip; according to the detection results of the thickness measuring sensor and the pressure sensor, the special-shaped lithium strip rolling and shaping device is adjusted to adjust the pressure applied by the special-shaped rolling mechanism to the lithium strip, so as to roll the lithium strip to a preset thickness.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. Excessive rolling differential speed will easily cause problems such as pile-up, cracked edges, pitting and light transmission. After being rolled and shaped by this special-shaped lithium strip rolling and shaping device, the rigidity and toughness of lithium will be increased, and the tension requirements of production will be reduced.

[0019] 2. When the lithium strip reaches a certain length, it needs to be re-made, and less than 200 meters can be produced at a time. However, after being processed by the special-shaped lithium strip rolling and shaping device, the lithium strip is less likely to pile up, thereby extending the production length of the product and improving production efficiency.

[0020] 3. After being rolled and shaped by the special-shaped lithium strip rolling and shaping device, the surface of the lithium strip is smooth and the internal structure is compact, which enhances the rigidity of the lithium strip, solves the tension control problem of unwinding, can control the tension more stably, change the flow ductility of lithium, and lessen the edge wave edge and crack edge phenomena. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the structure provided by the embodiment of the utility model Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure provided by the embodiment of the utility model Figure 2 ;

[0024] Figure 3 yes Figure 2 Schematic diagram of the structure of part A.

[0025] The reference numerals are as follows:

[0026] 10. Lithium belt placement mechanism;

[0027] 20. Special-shaped rolling mechanism; 21. First special-shaped roller; 22. Second special-shaped roller; 23. Raised strip; 24. Groove; 25. Heating rod; 26. Oiling module; 27. Pressure sensor;

[0028] 30. Air cooling mechanism;

[0029] 40. Cutting mechanism; 41. Cutting roller; 42. Hob;

[0030] 50. Secondary rolling mechanism; 51. Second upper pressing roller; 52. Second lower pressing roller; 53. Swing arm;

[0031] 60. Thickness measuring mechanism; 61. Thickness measuring sensor. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] The utility model provides a special-shaped lithium strip rolling and shaping device, which is implemented as follows: Figures 1 to 3As shown, along the processing path, the special-shaped lithium strip rolling and shaping device is sequentially provided with a lithium strip placing mechanism 10 and a special-shaped rolling mechanism 20; the lithium strip placing mechanism 10 is used to place lithium ingots; the special-shaped rolling mechanism 20 includes a first special-shaped roller 21 and a second special-shaped roller 22 that can move toward and away from each other, and one of the outer surfaces of the first special-shaped roller 21 and the second special-shaped roller 22 is provided with a circumferentially arranged convex strip 23, and the other outer surface of the first special-shaped roller 21 and the second special-shaped roller 22 is provided with a circumferentially arranged groove 24, the convex strip 23 and the groove 24 are arranged opposite to each other, and the cooperation of the convex strip 23 and the groove 24 is used to press indentations on the lithium strip.

[0034] During application, the lithium strip placement mechanism 10 is used to place the lithium ingot, and then the lithium strip is pulled out from the lithium ingot to the special-shaped rolling mechanism 20 for rolling; at this time, the special-shaped rolling mechanism 20 controls the first special-shaped roller 21 and the second special-shaped roller 22 to move toward each other, and the convex strip 23 will be embedded in the groove 24, so that an indentation can be pressed on the lithium strip. After the indentation is formed, the rigidity of the lithium strip will be increased, the tension control of the unwinding of the rolled lithium strip can be better controlled, the fluidity of lithium can be reduced, and the indentation can better solve the stacking problem in the rolling process, which can increase the rolling speed, increase production efficiency and pass rate.

[0035] like Figure 3 As shown, in this embodiment, multiple ridges 23 and multiple grooves 24 are provided, and the multiple ridges 23 are aligned with the multiple grooves 24 respectively.

[0036] After adopting this configuration, once the lithium ribbon is rolled using the special-shaped rolling mechanism 20 , multiple indentations can be formed, thereby further improving various properties of the lithium ribbon.

[0037] like Figures 1 to 3 As shown, the special-shaped rolling mechanism 20 of this embodiment further includes a heating rod 25 , and at least one of the first special-shaped roller and the second special-shaped roller 22 is rollingly mounted on the heating rod 25 .

[0038] After adopting this setting, the heating rod 25 is equivalent to the rotating shaft of one of the special-shaped rollers. For example, in this embodiment, the first special-shaped roller 21 is sleeved on the outside of the heating rod 25, and the heating rod 25 will heat the first special-shaped roller 21, thereby making it easier to roll the lithium strip.

[0039] In addition, corresponding temperature sensors can be added to detect temperature to ensure that the heating temperature can be controlled at an appropriate state at all times.

[0040] like Figures 1 to 3 As shown, in this embodiment, the special-shaped rolling mechanism 20 further includes an oiling module 26, which is used to oil the lithium strip rolled by the special-shaped rolling mechanism 20. The oiling module 26 can use a nozzle or other structure to achieve oil spraying and oiling operations.

[0041] After adopting this setting method, the surface of the lithium belt is oiled, which facilitates the processing of subsequent steps and avoids the occurrence of the lithium belt sticking to the roller.

[0042] like Figure 1 As shown, this embodiment is arranged along the processing path, and the special-shaped lithium strip rolling and shaping device is sequentially provided with a lithium strip placing mechanism 10, a special-shaped rolling mechanism 20, an air cooling mechanism 30, a cutting mechanism 40, a secondary rolling mechanism 50 and a thickness measuring mechanism 60.

[0043] After adopting this setting method, the entire processing production line can be realized.

[0044] like Figure 1 As shown, in this embodiment, the blowing direction of the air cooling mechanism 30 is aligned with the lower side of the lithium strip roll-formed by the special-shaped rolling mechanism 20. For example, the air cooling mechanism 30 can be implemented by a fan or other structure.

[0045] After adopting this setting method, dry cold air can be blown to the lithium belt to ensure that the subsequent processing operations can be carried out smoothly after the lithium belt is cooled.

[0046] like Figure 1 and Figure 2 As shown, the cutting mechanism 40 of this embodiment includes two cutting rollers 41 that can move toward and away from each other, and rollers 42 are provided at both ends of the two cutting rollers 41.

[0047] like Figure 1 and Figure 2 As shown, this embodiment is provided with a secondary rolling mechanism 50 including two upper pressing rollers 51 and two lower pressing rollers 52; the two upper pressing rollers 51 are arranged above the lithium strip cut by the cutting mechanism 40, and the two upper pressing rollers 51 are connected to a swing arm 53, which is rotatably installed on the special-shaped lithium strip rolling and shaping device, and the swing arm 53 is used for the two upper pressing rollers 51 to swing down and press the lithium strip by utilizing their own weight; the two lower pressing rollers 52 are arranged below the lithium strip cut by the cutting mechanism 40.

[0048] After adopting this setting method, the left end of the swing arm 53 in the direction shown in the figure will be rotatably connected to the special-shaped lithium strip rolling and shaping device, so that the swing arm 53 can drive the two upper pressing rollers 51 to swing clockwise due to their own weight; therefore, when the two upper pressing rollers 51 will automatically swing down and press the lithium strip, the lithium strip will be clamped between the two upper pressing rollers 51 and the two lower pressing rollers 52, thereby realizing the re-pressing of the lithium strip.

[0049] like Figures 1 to 3As shown, this embodiment is provided with a thickness measuring mechanism 60 including two thickness sensors 61, and the two thickness sensors 61 are respectively arranged at the upper and lower parts of the lithium strip after the secondary rolling, and the two thickness sensors 61 cooperate to detect the thickness of the lithium strip; the special-shaped rolling mechanism 20 is provided with a pressure sensor 27, and the pressure sensor 27 is used to detect the pressure applied by the special-shaped rolling mechanism 20 to the lithium strip; according to the detection results of the thickness sensor 61 and the pressure sensor 27, the special-shaped lithium strip rolling and shaping device is adjusted to adjust the pressure applied by the special-shaped rolling mechanism 20 to the lithium strip, so as to roll the lithium strip to a preset thickness.

[0050] Among them, a laser ranging sensor can be used as the thickness measuring sensor 61. Therefore, after adopting this setting method, the two thickness measuring sensors 61 can obtain the thickness information of the lithium strip by testing the distance between them and the two surfaces of the lithium strip; if the thickness of the lithium strip is too thick, it means that the pressing force is insufficient, so combined with the pressure information measured by the pressure sensor 27, the applied pressure can be increased accordingly; similarly, if the thickness of the lithium strip is too thin, it means that the pressing force is too great, so combined with the pressure information measured by the pressure sensor 27, the applied pressure can be reduced accordingly.

[0051] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A device for rolling and shaping special-shaped lithium strips, characterized in that: Along the processing path, the special-shaped lithium strip rolling and shaping device is sequentially provided with a lithium strip placing mechanism and a special-shaped rolling mechanism; The lithium strip placement mechanism is used to place lithium ingots; The special-shaped rolling mechanism includes a first special-shaped roller and a second special-shaped roller that can move toward and away from each other. The outer surface of one of the first special-shaped roller and the second special-shaped roller is provided with a circumferentially arranged convex strip, and the outer surface of the other of the first special-shaped roller and the second special-shaped roller is provided with a circumferentially arranged groove. The convex strip and the groove are arranged opposite to each other, and the cooperation between the convex strip and the groove is used to press an indentation on the lithium strip.

2. The device for rolling and shaping special-shaped lithium strips according to claim 1, characterized in that: There are multiple protrusions and multiple grooves, and the multiple protrusions are aligned with the multiple grooves respectively.

3. The device for rolling and shaping special-shaped lithium strips according to claim 1, characterized in that: The special-shaped rolling mechanism further includes a heating rod, and at least one of the first special-shaped roller and the second special-shaped roller is rollingly mounted on the heating rod.

4. The device for rolling and shaping special-shaped lithium strips according to claim 1, characterized in that: The special-shaped rolling mechanism further includes an oiling module, which is used to oil the lithium strip rolled by the special-shaped rolling mechanism.

5. The device for rolling and shaping special-shaped lithium strips according to claim 1, characterized in that: Along the processing path, the special-shaped lithium strip rolling and shaping device is sequentially provided with the lithium strip placing mechanism, the special-shaped rolling mechanism, the air cooling mechanism, the cutting mechanism, the secondary rolling mechanism and the thickness measuring mechanism.

6. The device for rolling and shaping special-shaped lithium strips according to claim 5, characterized in that: The blowing direction of the air cooling mechanism is aligned with the lower side of the lithium strip roll-formed by the special-shaped rolling mechanism.

7. The device for rolling and shaping special-shaped lithium strips according to claim 5, characterized in that: The cutting mechanism comprises two cutting rollers which can move towards and away from each other, and both ends of the two cutting rollers are provided with rollers.

8. The device for rolling and shaping special-shaped lithium strips according to claim 5, characterized in that: The secondary rolling mechanism includes two upper pressing rollers and two lower pressing rollers; The two upper pressing rollers are arranged above the lithium strip cut by the cutting mechanism, and the two upper pressing rollers are connected to a swing arm, which is rotatably mounted on the special-shaped lithium strip rolling and shaping device, and the swing arm is used for the two upper pressing rollers to swing down and press the lithium strip under their own weight; The second pressing rollers are arranged below the lithium strip cut by the cutting mechanism.

9. The device for rolling and shaping special-shaped lithium strips according to claim 5, characterized in that: The thickness measuring mechanism includes two thickness measuring sensors, which are respectively arranged above and below the lithium strip after the secondary rolling, and the two thickness measuring sensors cooperate to detect the thickness of the lithium strip; The special-shaped rolling mechanism is provided with a pressure sensor, and the pressure sensor is used to detect the pressure applied by the special-shaped rolling mechanism to the lithium strip; According to the detection results of the thickness sensor and the pressure sensor, the special-shaped lithium strip rolling and shaping device is used to adjust the pressure applied by the special-shaped rolling mechanism to the lithium strip, so as to roll the lithium strip to a preset thickness.

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