Lithium battery shell leveling device

Abstract

The utility model discloses a lithium battery shell leveling device which comprises a bottom table, and two stand columns are vertically and fixedly connected to the two sides of the top face of the bottom table. According to the rolling mechanism, the movable pressing roller is driven by the sliding blocks on the two sides to move, the height can be changed, then the distance between the movable pressing roller and the fixed pressing roller is changed to adapt to lithium battery shells with different thicknesses, the movable pressing roller is driven by the ball spline to rotate, and therefore during rolling, the movable pressing roller and the fixed pressing roller are both in a rotating state, and the rolling efficiency is improved. The friction force of the lithium battery shell does not need to be utilized to drive the movable compression roller to rotate, so that the condition of larger friction force on the lithium battery shell when the movable compression roller does not rotate can be avoided; according to the utility model, the overall height of the rolling mechanism can be adjusted, so that the height of the rolling mechanism can be adjusted after the distance between the movable compression roller and the fixed compression roller is adjusted by the rolling mechanism, the central position between the movable compression roller and the fixed compression roller is maintained at the original position, the feeding position is not changed, the feeding mechanism does not need to be adjusted again, and the production efficiency is improved. The operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production equipment, in particular to a lithium battery shell leveling device. Background Art

[0002] With the development of science and technology, lithium batteries have become mainstream. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996. Their safety, specific capacity, self-discharge rate and performance-price ratio are better than lithium ion batteries. Due to their own high technical requirements, only companies in a few countries are now producing such lithium metal batteries. Lithium batteries require an outer shell to wrap the internal materials to ensure that the materials do not leak. During the production of lithium batteries, the surface of the packaging shell needs to be flattened. At present, the main method used is roller pressing. The lithium battery passes between two rollers and is subjected to the pressure of the rollers to make the surface of the shell flat; for example, the Chinese invention patent with the authorization announcement number CN112496087A discloses an outer shell for lithium battery production and processing. The shell leveling device includes two support frames, an extrusion mechanism, a replacement mechanism, a transmission mechanism and an anti-falling mechanism. A motor No. 1 is installed at one end of one of the support frames; however, it cannot adjust the pressure roller according to the thickness of the battery shell, and its adaptability is poor. In this regard, the Chinese invention patent with the authorization announcement number CN116274487A discloses a shell leveling device for lithium battery production and processing, which relates to the technical field of shell leveling, including a fixed frame, a leveling mechanism and a limiting mechanism, the leveling mechanism is arranged on the fixed frame, the limiting mechanism is arranged on the fixed frame, the fixed frame is provided with a transmission roller, the leveling mechanism includes a cross plate and a roller frame, a pressure roller is arranged inside the roller frame, and a first bearing is fixedly installed on the upper surface of the roller frame; it adopts a pressure roller with adjustable height to adjust the roller distance, which can adapt to lithium battery shells of different thicknesses, but still has the following defects:

[0003] This leveling structure uses an adjustable roller to adjust the roller distance, which can be adjusted according to the thickness of the lithium battery shell. However, only one roller is driven by a motor. When rolling, the other roller rotates by the friction of the lithium battery shell. It is easy for the other roller to not rotate, which will produce greater friction on the lithium battery shell and cause damage to the shell. After adjusting the roller distance, the center line position between the two rollers changes, so the feeding position will also change, and the feeding mechanism needs to be adjusted, which is more troublesome.

[0004] For this reason, we propose a lithium battery shell leveling device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium battery shell leveling device to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a lithium battery shell leveling device, comprising a base, two columns are vertically fixed on both sides of the top surface of the base, two slide plates are vertically slidably arranged on the two columns, and a rolling mechanism is arranged between the two slide plates;

[0007] The rolling mechanism comprises a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are parallel to each other, a fixed pressure roller is rotatably arranged between the bottom ends of the first vertical plate and the second vertical plate, a power slide groove is arranged on the side of the first vertical plate close to the second vertical plate, a power slider is vertically slidably connected in the power slide groove, a guide slide groove is arranged on the side of the second vertical plate close to the first vertical plate, a guide slider is vertically slidably connected in the guide slide groove, and a dynamic pressure roller is rotatably arranged between the guide slider and the power slider;

[0008] The power slide groove is vertically rotatably connected to the spline long rod, the power slider is vertically rotatably connected to the ball spline, the ball spline is slidably sleeved on the spline long rod, an upper transmission cavity is opened in the power slider, the ball spline is located in the upper transmission cavity and fixedly sleeved on the first bevel gear, the fixed pressure roller is fixedly connected to the first upper short shaft near the center of one end of the power slider, the end of the first upper short shaft is located in the upper transmission cavity and fixedly connected to the second bevel gear, and the first bevel gear is meshed and connected to the second bevel gear.

[0009] Preferably, the first vertical plate is located below the power slide groove and is vertically rotatably connected to a lower rotating rod, and the top end of the lower rotating rod is fixedly connected to the bottom end of the spline long rod.

[0010] Preferably, the fixed pressure roller is fixedly connected to a lower short shaft near the center of one end of the first vertical plate, the lower short shaft is rotatably connected to the inside of the first vertical plate, and a lower transmission cavity is opened inside the lower part of the first vertical plate.

[0011] Preferably, the lower rotating rod is located in the lower transmission cavity and fixedly sleeved with the fourth bevel gear, the end of the lower short shaft is located in the lower transmission cavity and fixedly connected to the third bevel gear, the third bevel gear is meshed and connected to the fourth bevel gear, and the fourth bevel gear is in the opposite direction to the first bevel gear.

[0012] Preferably, the fixed pressure roller is horizontally fixed to the lower long shaft near the center of one end of the second vertical plate, the lower long shaft is rotatably connected in the second vertical plate, the bottom of the second vertical plate is fixed to the side away from the fixed pressure roller, and the rotating shaft end of the second servo reduction motor is fixed to the end of the lower long shaft.

[0013] Preferably, the dynamic pressure roller is horizontally fixed to a second upper short shaft near the center of one end of the guide slider, the second upper short shaft is rotatably connected in the guide slider, a guide rod is vertically fixed in the guide groove, a guide hole is vertically opened in the guide slider, and the guide hole is slidably sleeved on the guide rod.

[0014] Preferably, the top ends of the first and second vertical plates are fixed to the top plate, the top ends of the power slider and the guide slider are horizontally fixed to the lower pressure plate, the center of the top plate is vertically fixed with an electric push rod, and the bottom end of the electric push rod output end is fixed to the center of the top surface of the lower pressure plate.

[0015] Preferably, two sliding openings are provided on the two slides, the sliding openings are slidably sleeved on the columns, two side sliding grooves are provided on the sides of the two columns close to each other, the inner side walls of the sliding openings are fixedly connected to the side sliding blocks, and the side sliding blocks are vertically slidably connected in the side sliding grooves.

[0016] Preferably, a total of two inner cavities are opened inside the two columns and the base, one side of the inner cavity is connected to the side slide groove, the base is horizontally rotatably connected to a long rod, the long rod passes through the bottom ends of the two inner cavities, the long rod is located inside the bottom ends of the two inner cavities and is fixedly sleeved with two driving pulleys, the top end of the inner cavity is rotatably connected to the driven pulley, the driving pulley and the driven pulley are sleeved with a synchronous belt, the synchronous belt is fixedly connected to the side slider, one end of the base is fixedly connected to the first servo reduction motor, and the rotating shaft end of the first servo reduction motor is fixedly connected to the end of the long rod.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The dynamic pressure roller in the rolling mechanism of the utility model is driven to move by sliders on both sides, and the height can be changed, thereby changing the distance between the dynamic pressure roller and the fixed pressure roller to adapt to lithium battery shells of different thicknesses. The ball spline is used to drive the dynamic pressure roller to rotate. In this way, during rolling, the dynamic pressure roller and the fixed pressure roller are both in a rotating state, and there is no need to use the friction force of the lithium battery shell to drive the dynamic pressure roller to rotate. This can avoid the situation where the dynamic pressure roller does not rotate and generates a large friction force on the lithium battery shell; the utility model can adjust the overall height of the rolling mechanism. In this way, after the rolling mechanism has adjusted the distance between the dynamic pressure roller and the fixed pressure roller, the height of the rolling mechanism can be adjusted again, so that the center position between the dynamic pressure roller and the fixed pressure roller is maintained in place, so that the feeding position will not change, and there is no need to adjust the feeding mechanism again, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure in the first and second embodiments of the utility model;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of the rolling mechanism in the first and second embodiments of the utility model;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the structure at center A;

[0022] Figure 4 This is a schematic diagram of the main body cutaway structure in the second embodiment of the utility model.

[0023] In the figure: 1, base; 2, rolling mechanism; 11, column; 12, slide plate; 13, slide mouth; 14, side slide groove; 15, side slide block; 16, inner cavity; 17, long rod; 18, driving pulley; 19, driven pulley; 110, synchronous belt; 111, first servo reduction motor; 21, first vertical plate; 22, second vertical plate; 23, fixed pressure roller; 24, power slide groove; 25, power slide block; 26, guide slide groove; 27, guide slide block; 28, spline long rod; 29, ball bearing Spline; 210, upper transmission chamber; 211, first bevel gear; 212, first upper short shaft; 213, second bevel gear; 214, lower rotating rod; 215, lower transmission chamber; 216, second upper short shaft; 217, lower short shaft; 218, third bevel gear; 219, lower long shaft; 220, second servo reduction motor; 221, top plate; 222, lower pressure plate; 223, electric push rod; 224, guide rod; 225, guide hole; 226, fourth bevel gear; 227, dynamic pressure roller. DETAILED DESCRIPTION

[0024] 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 technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] See also Figure 1-3 The utility model provides a technical solution: a lithium battery shell leveling device, comprising a base 1, two columns 11 are vertically fixed on both sides of the top surface of the base 1, two slide plates 12 are vertically slidably arranged on the two columns 11, and a rolling mechanism 2 is arranged between the two slide plates 12. The two slide plates 12 are connected by sliding, and the overall height of the rolling mechanism 2 can be adjusted. In this way, after the rolling mechanism 2 adjusts the distance between the dynamic pressure roller 227 and the fixed pressure roller 23, the height of the rolling mechanism 2 can be adjusted again, so that the center position between the dynamic pressure roller 227 and the fixed pressure roller 23 is maintained in place, so that the feeding position will not change, and there is no need to adjust the feeding mechanism again, which is more convenient;

[0027] The rolling mechanism 2 includes a first vertical plate 21 and a second vertical plate 22, the first vertical plate 21 and the second vertical plate 22 are parallel to each other, a fixed pressure roller 23 is rotatably arranged between the bottom ends of the first vertical plate 21 and the second vertical plate 22, a power slide groove 24 is arranged on the side of the first vertical plate 21 close to the second vertical plate 22, a power slider 25 is vertically slidably connected in the power slide groove 24, a guide slide groove 26 is arranged on the side of the second vertical plate 22 close to the first vertical plate 21, a guide slider 27 is vertically slidably connected in the guide slide groove 26, and a dynamic pressure roller 227 is rotatably arranged between the guide slider 27 and the power slider 25;

[0028] The power slide 24 is vertically rotatable and connected to the spline long rod 28, the power slider 25 is vertically rotatable and connected to the ball spline 29, the ball spline 29 is slidably sleeved with the spline long rod 28, an upper transmission cavity 210 is provided in the power slider 25, the ball spline 29 is located in the upper transmission cavity 210 and is fixedly sleeved with the first bevel gear 211, the fixed pressure roller 23 is fixedly connected to the first upper short shaft 212 near the center of one end of the power slider 25, the end of the first upper short shaft 212 is located in the upper transmission cavity 210 and is fixedly connected to the second bevel gear 213, and the first bevel gear 211 is meshed and connected Connected to the second bevel gear 213, the dynamic pressure roller 227 in the rolling mechanism 2 is driven to move by the sliders on both sides, and the height can be changed, thereby changing the distance between the dynamic pressure roller 227 and the fixed pressure roller 23 to adapt to lithium battery shells of different thicknesses. The ball spline 29 is used to drive the dynamic pressure roller 227 to rotate. In this way, during rolling, the dynamic pressure roller 227 and the fixed pressure roller 23 are both in a rotating state, and there is no need to use the friction force of the lithium battery shell to drive the dynamic pressure roller 227 to rotate, thereby avoiding the situation where the dynamic pressure roller 227 does not rotate and generates a large friction force on the lithium battery shell.

[0029] Embodiment 2:

[0030] See also Figure 1-4 , which is the second embodiment of the utility model. This embodiment is based on the previous embodiment. The first vertical plate 21 is located below the power slide 24 and is vertically rotated to connect to the lower rotating rod 214. The top end of the lower rotating rod 214 is fixedly connected to the bottom end of the spline long rod 28.

[0031] The fixed pressure roller 23 is fixedly connected to the lower short shaft 217 at the center of one end close to the first vertical plate 21 . The lower short shaft 217 is rotatably connected to the inside of the first vertical plate 21 . A lower transmission cavity 215 is defined inside the lower part of the first vertical plate 21 .

[0032] The lower rotating rod 214 is located in the lower transmission cavity 215 and is fixedly sleeved with the fourth bevel gear 226. The end of the lower short shaft 217 is located in the lower transmission cavity 215 and is fixedly connected to the third bevel gear 218. The third bevel gear 218 is meshed and connected to the fourth bevel gear 226. The fourth bevel gear 226 and the first bevel gear 211 are facing opposite directions.

[0033] The fixed pressure roller 23 is horizontally fixed to the lower long shaft 219 near the center of one end of the second vertical plate 22, and the lower long shaft 219 is rotatably connected to the second vertical plate 22. The bottom of the second vertical plate 22 is fixed to the side away from the fixed pressure roller 23, and the rotating shaft end of the second servo reduction motor 220 is fixed to the end of the lower long shaft 219.

[0034] The dynamic pressure roller 227 is horizontally fixedly connected to the second upper short shaft 216 near the center of one end of the guide slider 27. The second upper short shaft 216 is rotatably connected in the guide slider 27. The guide slide groove 26 is vertically fixedly connected to the guide rod 224. A guide hole 225 is vertically opened in the guide slider 27, and the guide hole 225 is slidably sleeved on the guide rod 224.

[0035] The top ends of the first vertical plate 21 and the second vertical plate 22 are fixedly connected to the top plate 221, the top ends of the power slider 25 and the guide slider 27 are horizontally fixedly connected to the lower pressure plate 222, the center of the top plate 221 is vertically fixedly connected to the electric push rod 223, the bottom end of the output end of the electric push rod 223 is fixedly connected to the center of the top surface of the lower pressure plate 222, the fixed pressure roller 23 is driven to rotate by the second servo reduction motor 220, and the spline long rod 28 is driven to rotate at the same time, and the dynamic pressure roller 227 is driven to rotate by the ball spline 29, because the fourth bevel gear 226 and the first bevel gear 211 are in opposite directions, so the dynamic pressure roller 227 and the fixed pressure roller 23 also turn in opposite directions, so the lithium battery casing can be rolled.

[0036] Two sliding openings 13 are provided on the two slide plates 12, and the sliding openings 13 are slidably sleeved on the columns 11. Two side sliding grooves 14 are provided on the side where the two columns 11 are close to each other. The inner side walls of the sliding openings 13 are fixedly connected to the side sliding blocks 15, and the side sliding blocks 15 are vertically slidably connected in the side sliding grooves 14.

[0037] A total of two inner cavities 16 are provided inside the two columns 11 and the base 1, one side of the inner cavity 16 is connected to the side slide groove 14, the base 1 is horizontally rotatably connected to a long rod 17, the long rod 17 passes through the bottom ends of the two inner cavities 16, the long rod 17 is located inside the bottom ends of the two inner cavities 16 and is fixedly sleeved with two driving pulleys 18, the top of the inner cavity 16 is rotatably connected to a driven pulley 19, the driving pulley 18 and the driven pulley 19 are sleeved with a synchronous belt 110, the synchronous belt 110 is fixedly connected to the side slider 15, one end of the base 1 is fixedly connected to a first servo reduction motor 111, the rotating shaft end of the first servo reduction motor 111 is fixedly connected to the end of the long rod 17, the two synchronous belts 110 are driven to rotate by the first servo reduction motor 111, and the slide plate 12 can be driven to move, thereby changing the overall height position of the rolling mechanism 2.

[0038] Embodiment 3:

[0039] See also Figure 1-4, which is the third embodiment of the utility model. This embodiment is based on the above two embodiments. When the utility model is used, the feeding mechanism feeds the lithium battery shell into the space between the dynamic pressure roller 227 and the fixed pressure roller 23 for rolling, so that the surface of the lithium battery shell can be flattened; the dynamic pressure roller 227 in the rolling mechanism 2 of the utility model is driven to move by the sliders on both sides, and the height can be changed, thereby changing the distance between the dynamic pressure roller 227 and the fixed pressure roller 23 to adapt to lithium battery shells of different thicknesses. The ball spline 29 is used to drive the dynamic pressure roller 227 to rotate, so that during rolling, the dynamic pressure roller 227 and the fixed pressure roller 23 are The pressure rollers 23 are all in a rotating state, and there is no need to use the friction force of the lithium battery shell to drive the dynamic pressure roller 227 to rotate. This can avoid the situation where the dynamic pressure roller 227 does not rotate and generates a large friction force on the lithium battery shell; the utility model can adjust the overall height of the rolling mechanism 2, so that after the rolling mechanism 2 adjusts the distance between the dynamic pressure roller 227 and the fixed pressure roller 23, the height of the rolling mechanism 2 can be adjusted again, so that the center position between the dynamic pressure roller 227 and the fixed pressure roller 23 is maintained in place, so that the feeding position will not change, and there is no need to adjust the feeding mechanism again, which is more convenient.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery housing leveling device, comprising a base (1), characterized in that: Two columns (11) are vertically fixedly connected to the top surface of the base (1) on both sides, two slide plates (12) are vertically slidably arranged on the two columns (11), and a rolling mechanism (2) is arranged between the two slide plates (12); The rolling mechanism (2) comprises a first vertical plate (21) and a second vertical plate (22), the first vertical plate (21) and the second vertical plate (22) are parallel to each other, a fixed pressure roller (23) is rotatably arranged between the bottom ends of the first vertical plate (21) and the second vertical plate (22), a power slide groove (24) is provided on the side of the first vertical plate (21) close to the second vertical plate (22), a power slider (25) is vertically slidably connected in the power slide groove (24), a guide slide groove (26) is provided on the side of the second vertical plate (22) close to the first vertical plate (21), a guide slider (27) is vertically slidably connected in the guide slide groove (26), and a dynamic pressure roller (227) is rotatably arranged between the guide slider (27) and the power slider (25); The power slide groove (24) is vertically rotatably connected to a spline long rod (28), the power slider (25) is vertically rotatably connected to a ball spline (29), the ball spline (29) is slidably sleeved on the spline long rod (28), an upper transmission cavity (210) is provided in the power slider (25), the ball spline (29) is located in the upper transmission cavity (210) and is fixedly sleeved on a first bevel gear (211), the fixed pressure roller (23) is fixedly connected to a first upper short shaft (212) near the center of one end of the power slider (25), the end of the first upper short shaft (212) is located in the upper transmission cavity (210) and is fixedly connected to a second bevel gear (213), and the first bevel gear (211) is meshedly connected to the second bevel gear (213).

2. A lithium battery shell leveling device according to claim 1, characterized in that: The first vertical plate (21) is located below the power slide groove (24) and is vertically rotatably connected to a lower rotating rod (214), and the top end of the lower rotating rod (214) is fixedly connected to the bottom end of the spline long rod (28).

3. A lithium battery shell leveling device according to claim 2, characterized in that: The fixed pressure roller (23) is fixedly connected to a lower short shaft (217) near the center of one end of the first vertical plate (21); the lower short shaft (217) is rotatably connected to the inside of the first vertical plate (21); and a lower transmission chamber (215) is provided inside the lower part of the first vertical plate (21).

4. A lithium battery shell leveling device according to claim 3, characterized in that: The lower rotating rod (214) is located in the lower transmission chamber (215) and is fixedly sleeved with the fourth bevel gear (226). The end of the lower short shaft (217) is located in the lower transmission chamber (215) and is fixedly connected with the third bevel gear (218). The third bevel gear (218) is meshedly connected with the fourth bevel gear (226). The fourth bevel gear (226) faces in the opposite direction to the first bevel gear (211).

5. A lithium battery casing leveling device according to claim 4, characterized in that: The fixed pressure roller (23) is horizontally fixedly connected to a lower long shaft (219) near the center of one end of the second vertical plate (22); the lower long shaft (219) is rotatably connected inside the second vertical plate (22); the bottom of the second vertical plate (22) is fixedly connected to a second servo reduction motor (220) at a side away from the fixed pressure roller (23); and the rotating shaft end of the second servo reduction motor (220) is fixedly connected to the end of the lower long shaft (219).

6. A lithium battery shell leveling device according to claim 1, characterized in that: The dynamic pressure roller (227) is horizontally fixedly connected to the second upper short shaft (216) near the center of one end of the guide slider (27); the second upper short shaft (216) is rotatably connected in the guide slider (27); a guide rod (224) is vertically fixed in the guide groove (26); a guide hole (225) is vertically opened in the guide slider (27); and the guide hole (225) is slidably sleeved on the guide rod (224).

7. A lithium battery shell leveling device according to claim 1, characterized in that: The top ends of the first vertical plate (21) and the second vertical plate (22) are fixedly connected to a top plate (221); the top ends of the power slider (25) and the guide slider (27) are horizontally fixedly connected to a lower pressure plate (222); the center of the top plate (221) is vertically fixedly connected to an electric push rod (223); the bottom end of the output end of the electric push rod (223) is fixedly connected to the center of the top surface of the lower pressure plate (222).

8. A lithium battery casing leveling device according to claim 1, characterized in that: Two sliding openings (13) are provided on the two slide plates (12), and the sliding openings (13) are slidably sleeved on the columns (11). Two side sliding grooves (14) are provided on the sides of the two columns (11) close to each other. The inner side walls of the sliding openings (13) are fixedly connected to side sliding blocks (15), and the side sliding blocks (15) are vertically slidably connected in the side sliding grooves (14).

9. A lithium battery casing leveling device according to claim 8, characterized in that: A total of two inner cavities (16) are provided inside the two upright columns (11) and the base (1), one side of the inner cavity (16) is connected to the side slide groove (14), the base (1) is horizontally rotatably connected to a long rod (17), the long rod (17) passes through the bottom ends of the two inner cavities (16), the long rod (17) is located inside the bottom ends of the two inner cavities (16) and is fixedly sleeved with two driving pulleys (18), the top end of the inner cavity (16) is rotatably connected to a driven pulley (19), a synchronous belt (110) is sleeved on the driving pulley (18) and the driven pulley (19), the synchronous belt (110) is fixedly connected to the side slider (15), one end of the base (1) is fixedly connected to a first servo reduction motor (111), and the shaft end of the first servo reduction motor (111) is fixedly connected to the end of the long rod (17).

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