Swing roller assembly for lithium battery production

Abstract

The utility model discloses a swing roller assembly for lithium battery production, and particularly relates to the technical field of lithium battery production, the swing roller assembly comprises wallboards, the two wallboards are symmetrically distributed, a first mounted bearing is fixedly clamped at the tops of the two wallboards, a rotating shaft is fixedly clamped at the middle part of the first mounted bearing, and the rotating shaft is fixedly clamped at the middle part of the rotating shaft; swing arms are fixedly arranged at the two ends of the rotating shaft, floating rollers are arranged at the bottoms of the swing arms, a swing assembly is arranged on the side, close to the swing arms, of one wall plate, and an auxiliary mechanism is arranged on the side, close to the rotating shaft, of the other wall plate. The swing assembly comprises a cylinder seat shaft, and the cylinder seat shaft is fixedly mounted on one side, close to the swing arm, of one wall plate. The tension of a lithium battery diaphragm is flexibly controlled by arranging the swing assembly and using an auxiliary mechanism in a matched manner, and the tension of the diaphragm is controlled to fluctuate within a small range; and the phenomenon that the film is irregular or fleets edges on the roll core is reduced, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, specifically to a swing roller assembly for lithium battery production. Background Technology

[0002] Lithium batteries are a type of rechargeable battery with lithium as the main component. They are widely used in various electronic devices and electric vehicles due to their high energy density, long charge cycle life and low self-discharge rate.

[0003] In lithium battery separator production lines, winding is the final stage of the entire production line. The stability and reliability of winding directly affect the product. If the tension of the film cannot be guaranteed during winding, the film will be uneven or have misaligned edges on the roll core, which greatly affects production efficiency and product quality. To address this issue, we propose a swing roller assembly for lithium battery production. Utility Model Content

[0004] The purpose of this invention is to provide a swing roller assembly for lithium battery production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a swing roller assembly for lithium battery production, comprising a wall panel, wherein two wall panels are symmetrically distributed, a first bearing with a seat is fixedly mounted on the top of the two wall panels, a rotating shaft is fixedly mounted on the middle of the first bearing with a seat, swing arms are fixedly mounted on both ends of the rotating shaft, and a floating roller is mounted on the bottom of the swing arm; a swing assembly is mounted on the side of one wall panel near the swing arm, and an auxiliary mechanism is mounted on the side of the other wall panel near the rotating shaft;

[0006] The swing assembly includes a cylinder seat shaft, which is fixedly installed on one of the wall panels near the swing arm. A rotating seat is rotatably fitted on the end of the cylinder seat shaft away from the wall panel. A low-friction cylinder is fixedly installed on the side of the rotating seat away from the cylinder seat shaft by bolts. A sleeve is fixedly installed on the drive end of the low-friction cylinder. A cylinder rod shaft is rotatably clamped on the side of the sleeve away from the low-friction cylinder. The end of the cylinder rod shaft away from the sleeve is fixedly clamped to the swing arm.

[0007] Preferably, the auxiliary mechanism includes a large gear and a potentiometer bracket. The large gear is movably sleeved on the outside of the rotating shaft. The large gear is fixedly installed on the top of the swing arm. The potentiometer bracket is fixedly installed on the wall panel. A precision potentiometer is fixedly installed at the end of the potentiometer bracket. A small gear is fixedly installed at the input end of the precision potentiometer. The large gear and the small gear are meshed together.

[0008] Preferably, a protective cover is fixedly installed on the outside of the potentiometer bracket, and the large gear, potentiometer bracket, precision potentiometer and small gear are all located in the protective cover.

[0009] Preferably, steps are machined at both ends of the rotating shaft, and a fixed seat is fixedly installed at the step position. The top of the swing arm is movably sleeved on the outside of the rotating shaft, and the top of the swing arm is fixedly installed on the fixed seat.

[0010] Preferably, two pressure plates are fixedly installed on the inner side of the wall panel, and hydraulic dampers are fixedly installed on the pressure plates. The two hydraulic dampers are located on both sides of the swing arm.

[0011] Preferably, the swing arm has multiple mounting holes along its central axis, and a second bearing with a seat is fixedly fastened in the middle of one of the mounting holes. The two ends of the floating roller are respectively fixedly fastened to the middle of the corresponding second bearing with a seat.

[0012] Preferably, the outer wall of the wall panel is fitted with a first cover on the side near the first bearing seat by bolts.

[0013] Preferably, a second cover is fixedly fastened to the outer wall of the swing arm near the second bearing seat by bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By setting up a swing component and using an auxiliary mechanism, the tension of the lithium battery separator can be flexibly controlled, and the tension of the membrane can be controlled to fluctuate within a small range, reducing the phenomenon of unevenness or edge slippage of the membrane on the roll core, thereby improving production efficiency and product quality.

[0016] 2. By opening multiple mounting holes, it is easy to install the floating roller in different positions, which increases the flexibility of the entire swing roller assembly.

[0017] 3. By setting a low-friction cylinder, a constant thrust can be ensured. When used in conjunction with a precision potentiometer, the signal can be sensitively acquired, thus making tension control more accurate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a side view of the structure of this utility model.

[0021] Figure 3 This is a top view of the structure of this utility model.

[0022] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0023] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0024] Figure 6 This is a schematic diagram of the tension control principle of this utility model.

[0025] In the diagram: 1. Wall panel; 11. First bearing with seat; 111. First cover; 2. Rotating shaft; 21. Fixed seat; 3. Swing arm; 301. Mounting hole; 4. Floating roller; 41. Second bearing with seat; 411. Second cover; 5. Swing assembly; 6. Pressure plate; 61. Hydraulic damper; 51. Cylinder seat shaft; 511. Rotating seat; 52. Low friction cylinder; 53. Sleeve; 54. Cylinder rod shaft; 7. Auxiliary mechanism; 71. Large gear; 72. Potentiometer bracket; 73. Precision potentiometer; 74. Small gear; 75. Protective cover. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Figure 1-6 As shown, this utility model provides a swing roller assembly for lithium battery production, including a wall panel 1. The wall panel 1 has two symmetrically distributed components. The top of the two wall panels 1 is fixedly fitted with a first bearing 11 with a seat. The middle of the first bearing 11 is fixedly fitted with a rotating shaft 2. The two ends of the rotating shaft 2 are fixedly fitted with swing arms 3. The two ends of the rotating shaft 2 are machined with steps. The steps are fixedly fitted with fixed seats 21. The top of the swing arm 3 is movably sleeved on the outside of the rotating shaft 2. The top of the swing arm 3 is fixedly mounted on the fixed seat 21 to fix the rotating shaft 2 and the swing arm 3, thereby facilitating the rotation of the swing arm 3 along the rotating shaft 2.

[0028] The bottom of the swing arm 3 is provided with a floating roller 4, one of the wall panels 1 is provided with a swing assembly 5 on the side near the swing arm 3, and the other wall panel 1 is provided with an auxiliary mechanism 7 on the side near the rotating shaft 2.

[0029] The swing assembly 5 includes a cylinder seat shaft 51, which is fixedly installed on one of the wall plates 1 near the swing arm 3. A rotating seat 511 is rotatably sleeved on the end of the cylinder seat shaft 51 away from the wall plate 1. A low-friction cylinder 52 is fixedly installed on the side of the rotating seat 51 away from the cylinder seat shaft 51 by bolts. The thrust output by the low-friction cylinder 52 is constant and controllable, and the tension can be precisely controlled. A sleeve 53 is fixedly installed on the drive end of the low-friction cylinder 52. A cylinder rod shaft 54 ​​is rotatably clamped on the side of the sleeve 53 away from the low-friction cylinder 52. The end of the cylinder rod shaft 54 ​​away from the sleeve 53 is fixedly clamped on the swing arm 3. By controlling the opening of the low-friction cylinder 52, the swing arm 3 is pushed to rotate along the rotating shaft 2, thereby controlling the floating roller 4 to swing automatically.

[0030] The auxiliary mechanism 7 includes a large gear 71 and a potentiometer bracket 72. The large gear 71 is movably sleeved on the outside of the rotating shaft 2 and is fixedly installed on the top of the swing arm 3. The potentiometer bracket 72 is fixedly installed on the wall plate 1. A precision potentiometer 73 is fixedly installed at the end of the potentiometer bracket 72. A small gear 74 is fixedly installed at the input end of the precision potentiometer 73. The large gear 71 and the small gear 74 are meshed together. When the swing arm 3 rotates, the large gear 71 drives the small gear 74 to rotate, which in turn controls the precision potentiometer 73. The rotation angle of the rotating shaft 2 is transmitted to the precision potentiometer 73, which outputs the rotation angle as an electrical signal to provide feedback on the current tension change of the membrane.

[0031] A protective cover 75 is fixedly installed on the outside of the potentiometer bracket 72. The large gear 71, potentiometer bracket 72, precision potentiometer 73 and small gear 74 are all located in the protective cover 75. By setting the protective cover 75, the large gear 71, potentiometer bracket 72, precision potentiometer 73 and small gear 74 are protected.

[0032] Two pressure plates 6 are fixedly installed on the inner side of the wall panel 1. A hydraulic damper 61 is fixedly installed on the pressure plate 6. The two hydraulic dampers 61 are located on both sides of the swing arm 3. By setting the two hydraulic dampers 61, the swing amplitude of the swing arm 3 is limited, the impact is reduced, and the low friction cylinder 52 is protected.

[0033] Multiple mounting holes 301 are provided along the central axis of the swing arm 3. A second bearing 41 is fixedly mounted in the middle of one of the mounting holes 301. The two ends of the floating roller 4 are respectively fixedly mounted in the middle of the corresponding second bearing 41. By providing multiple mounting holes 301, it is convenient to install the floating roller 4 in different positions, which increases the flexibility of the entire swing roller assembly.

[0034] A first cover 111 is fixedly mounted on the outer wall of the wall panel 1 near the first bearing 11 by bolts. By setting the first cover 111, grease inside the first bearing 11 is prevented from splashing.

[0035] A second cover 411 is bolted to the side of the outer wall of the swing arm 3 near the second bearing 41. The second cover 411 is installed to prevent grease from splashing inside the second bearing 41.

[0036] Working principle: such as Figure 5 As shown, the thrust of the low-friction cylinder 52 is set by the precision pressure reducing valve. At this time, the thrust acting on the floating roller 4 is set to F1. Then, after the lithium battery separator passes through the floating roller 4, the tension of the membrane will pull the swing arm 3 to rotate. At this time, the tension acting on the floating roller 4 is F2. F1 and F2 are opposite in direction. F1 is the set value, F2 is the actual value, V1 is the speed of the front end of the membrane, and V2 is the speed of the rear end of the membrane.

[0037] Comparing F1 and F2: If F1 > F2, the tension is too low. The low-friction cylinder 52 controls the swing arm 3 to swing to the right. The precision potentiometer 73 reads the signal, and the system increases the speed V2 of the membrane's rear section, making V2 > V1. The membrane tightens, and the tension increases. At this time, F2 increases until F1 = F2, at which point the acceleration of V2 stops. If F1 < F2, the tension is too high. The low-friction cylinder 52 controls the swing arm 3 to swing to the left. The precision potentiometer 73 reads the signal, and the system slows down the speed V2 of the membrane's rear section, making V2 < V1. The membrane loosens, and the tension decreases. At this time, F2 decreases until F1 = F2, at which point the deceleration of V2 stops.

[0038] By repeating this process, the membrane tension can be controlled to fluctuate within a small range. By setting a low-friction cylinder 52, a constant thrust can be ensured. In conjunction with a precision potentiometer 73, the signal can be sensitively acquired, thus making tension control more accurate.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A swing roller assembly for lithium battery production, comprising a wall panel (1), characterized in that: The wall panel (1) is provided with two symmetrically distributed wall panels (1). The top of the two wall panels (1) is fixedly provided with a first bearing (11). The middle of the first bearing (11) is fixedly provided with a rotating shaft (2). The two ends of the rotating shaft (2) are fixedly provided with swing arms (3). The bottom of the swing arms (3) is provided with a floating roller (4). One of the wall panels (1) is provided with a swing assembly (5) on the side near the swing arm (3), and the other wall panel (1) is provided with an auxiliary mechanism (7) on the side near the rotating shaft (2). The swing assembly (5) includes a cylinder seat shaft (51), which is fixedly installed on one of the wall plates (1) near the swing arm (3). A rotating seat (511) is rotatably sleeved on the end of the cylinder seat shaft (51) away from the wall plate (1). A low-friction cylinder (52) is fixedly installed on the side of the rotating seat (511) away from the cylinder seat shaft (51) by bolts. A sleeve (53) is fixedly installed on the drive end of the low-friction cylinder (52). A cylinder rod shaft (54) is rotatably clamped on the side of the sleeve (53) away from the low-friction cylinder (52). The end of the cylinder rod shaft (54) away from the sleeve (53) is fixedly clamped on the swing arm (3).

2. The oscillating roller assembly for lithium battery production according to claim 1, characterized in that: The auxiliary mechanism (7) includes a large gear (71) and a potentiometer bracket (72). The large gear (71) is movably sleeved on the outside of the rotating shaft (2). The large gear (71) is fixedly installed on the top of the swing arm (3). The potentiometer bracket (72) is fixedly installed on the wall panel (1). A precision potentiometer (73) is fixedly installed at the end of the potentiometer bracket (72). A small gear (74) is fixedly installed at the input end of the precision potentiometer (73). The large gear (71) and the small gear (74) are meshed together.

3. The oscillating roller assembly for lithium battery production according to claim 2, characterized in that: A protective cover (75) is fixedly installed on the outside of the potentiometer bracket (72), and the large gear (71), potentiometer bracket (72), precision potentiometer (73) and small gear (74) are all located in the protective cover (75).

4. The oscillating roller assembly for lithium battery production according to claim 1, characterized in that: The two ends of the rotating shaft (2) are machined with steps, and a fixed seat (21) is fixedly installed at the step position. The top of the swing arm (3) is movably sleeved on the outside of the rotating shaft (2), and the top of the swing arm (3) is fixedly installed on the fixed seat (21).

5. A swing roller assembly for lithium battery production according to claim 1, characterized in that: Two pressure plates (6) are fixedly installed on the inner side of the wall panel (1), and hydraulic buffers (61) are fixedly installed on the pressure plates (6). The two hydraulic buffers (61) are located on both sides of the swing arm (3).

6. A swing roller assembly for lithium battery production according to claim 1, characterized in that: The swing arm (3) has multiple mounting holes (301) along the central axis. A second bearing (41) is fixedly mounted in the middle of one of the mounting holes (301). The two ends of the floating roller (4) are respectively fixedly mounted in the middle of the corresponding second bearing (41).

7. A swing roller assembly for lithium battery production according to claim 1, characterized in that: The outer wall of the wall panel (1) is fitted with a first cover (111) by bolts on the side near the first bearing seat (11).

8. A swing roller assembly for lithium battery production according to claim 6, characterized in that: The second cover (411) is fixedly mounted on the outer wall of the swing arm (3) near the second bearing seat (41) by bolts.

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