Unwinding mechanism and lithium battery production equipment

Abstract

The utility model discloses an unreeling mechanism and lithium battery production equipment, the unreeling mechanism comprises an unreeling frame, a first unreeling assembly and a second unreeling assembly, the first unreeling assembly and the second unreeling assembly are arranged in bilateral symmetry, the first unreeling assembly and the second unreeling assembly respectively comprise an unreeling support, a mounting plate, a connecting shaft, an unreeling shaft, a rotation driving module and a translation driving module, the unwinding support is located behind the unwinding frame, one end of the unwinding support is arranged on one side of the unwinding frame, the mounting plate is arranged at the top end of the unwinding support in a sliding mode, the rotary driving module is arranged at the top end of the mounting plate, the unwinding shaft is located in front of the unwinding frame, and the rotary driving module is arranged at the top end of the mounting plate. One end of the connecting shaft is connected with the rotary driving module, and the other end of the connecting shaft penetrates through the first through hole position of the unwinding frame and is connected with one end of the unwinding shaft. According to the utility model, the operation space of operators is enlarged, and the operation risk of the operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to an unwinding mechanism and lithium battery production equipment. Background Art

[0002] The unwinding mechanism for unwinding the diaphragm or electrode of the existing lithium battery production equipment generally includes an unwinding frame and a first unwinding assembly and a second unwinding assembly which are symmetrically arranged on the left and right. The first unwinding assembly and the second unwinding assembly both include a mounting seat, an unwinding shaft and a rotation drive module. The mounting seat is located behind the unwinding frame and one end of the mounting seat is arranged on one side of the unwinding frame. The rotation drive module is arranged at the top of the mounting seat. One end of the unwinding shaft is connected to the rotation drive module. The other end of the unwinding shaft passes through the through hole of the unwinding frame and is located in front of the unwinding frame. The rotation drive module is used to drive the unwinding shaft to rotate relative to the unwinding frame. In actual application, the unwinding rack is fixed in the protective cover of the lithium battery production equipment and is close to the window of the protective cover. The part of the unwinding shaft located in front of the unwinding rack is located between the window and the unwinding rack. During operation, for example, the corresponding unwinding shaft is first driven to rotate by the rotation drive module of the first unwinding component to unwind the base material roll installed thereon through the unwinding shaft. When the base material roll on the unwinding shaft of the first unwinding component is exhausted, the operator first opens the two window doors on the window of the protective cover, and then installs a new base material roll on the unwinding shaft of the second unwinding component, and then connects the new base material roll and the base material roll on the unwinding shaft of the first unwinding component, and then drives the corresponding unwinding shaft to rotate by the rotation drive module of the second unwinding component, so that the substrate of the new base material roll can be unwound through the unwinding shaft.

[0003] The above structure can realize the reel changing and splicing operations without stopping the equipment, but since the unwinding shaft cannot move forward and backward relative to the unwinding frame, the operator needs to perform the reel changing and splicing operations inside the protective cover. The working space inside the protective cover is limited, and the various mechanisms of the equipment are in working condition, which increases the risk of the operator's operation. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an unwinding mechanism and lithium battery production equipment, which increase the operating space for operators and reduce the operating risks for operators.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The first aspect of the present invention provides a reeling mechanism, comprising a reeling frame and a first reeling assembly and a second reeling assembly which are symmetrically arranged on the left and right sides, wherein the first reeling assembly and the second reeling assembly each comprise a reeling support, a mounting plate, a connecting shaft, a reeling shaft, a rotating drive module and a translatory drive module, wherein the reeling support is located behind the reeling frame and one end of the reeling support is arranged on one side of the reeling frame, the connecting plate is slidably arranged on the top of the reeling support, the rotating drive module is arranged on the top of the connecting plate, the reeling shaft is located in front of the reeling frame, and the connecting shaft One end of the cam is connected to the rotation driving module, and the other end of the connecting shaft passes through the first through hole of the unwinding frame and is connected to one end of the unwinding shaft. The rotation driving module is used to drive the connecting shaft to rotate, thereby driving the unwinding shaft to rotate. The translation driving module is arranged on the unwinding support and connected to the mounting plate. The translation driving module is used to drive the mounting plate to move back and forth, thereby driving the rotation driving module, the connecting shaft and the unwinding shaft to move back and forth. During the process of the mounting plate moving back and forth, the mounting plate can pass through the first through hole.

[0007] As a preferred technical solution, the rotation drive module includes a first motor, a reducer and a synchronous belt transmission unit. The reducer is arranged at the top of the mounting plate through a reducer seat. The first motor is arranged on the reducer. The output end of the first motor is connected to the input end of the reducer. The output end of the reducer passes through the through hole of the reducer seat and is connected to one end of the connecting shaft through the synchronous belt transmission unit. The first motor is used to drive the connecting shaft to rotate through the reducer and the synchronous belt transmission unit.

[0008] As a preferred technical solution, the synchronous belt transmission unit includes a driving wheel, a driven wheel and a synchronous belt sleeved on the outer periphery of the driving wheel and the driven wheel. The driving wheel is sleeved on the outer periphery of the output end of the reducer, and the driven wheel is sleeved on the outer periphery of one end of the connecting shaft.

[0009] As a preferred technical solution, a support seat is provided at the top of the mounting plate, and an arcuate groove is provided at the top of the support seat. The arcuate groove cooperates with the connecting shaft, and the connecting shaft can rotate relative to the support seat.

[0010] As a preferred technical solution, the translation drive module includes a second motor, a screw rod and a nut, the second motor is arranged at the other end of the unwinding support through a motor seat, the screw rod is located in the unwinding support, one end of the screw rod is connected to the output end of the second motor, and the other end of the screw rod is rotatably arranged at the top of the unwinding support, the nut is threadedly engaged with the screw rod, the bottom end of the mounting plate is provided with a connecting piece, the top end of the unwinding support is provided with an avoidance hole corresponding to the connecting piece, the end of the connecting piece away from the mounting plate passes through the avoidance hole and is connected to the nut, the second motor is used to drive the screw rod to rotate, thereby driving the nut to move forward and backward, and the forward and backward movement of the nut can drive the connecting piece to move forward and backward between the two ends of the avoidance hole, thereby driving the mounting plate to move forward and backward.

[0011] As a preferred technical solution, a slider is provided at the top of the unwinding support, and a slide rail is provided at the bottom end of the mounting plate. The slide rail slides in cooperation with the slider. When the mounting plate moves forward and backward, the mounting plate can drive the slide rail to move forward and backward relative to the slider. When the slide rail moves forward and backward, the slide rail can pass through the first through hole.

[0012] As a preferred technical solution, the driving wheel, driven wheel and synchronous belt are all accommodated in a protective cover, the protective cover is arranged at the top of the mounting plate and is located between the reducer base and the unwinding rack, and the protective cover is provided with a first avoidance position for avoiding the output end of the reducer and a second avoidance position for avoiding the connecting shaft.

[0013] As a preferred technical solution, a first support member is provided at one end of the reducer seat, a second support member corresponding to the first support member is provided in front of the unwinding frame, a guide rod is provided between the first support member and the second support member, the guide rod is arranged through the second through hole of the unwinding frame, one end of the connecting plate is connected to one end of the second support member, the other end of the connecting plate has a connecting plate through hole, the other end of the connecting plate is sleeved on the outer periphery of the connecting shaft through the connecting plate through hole, a rotating bearing is provided in the connecting plate through hole, and the rotating bearing is sleeved on the outer periphery of the connecting shaft.

[0014] As a preferred technical solution, a linear bearing is provided in the second through hole of the unwinding frame, and the linear bearing is sleeved on the outer circumference of the guide rod.

[0015] A second aspect of the present invention provides a lithium battery production device, comprising the unwinding mechanism described in the above technical solution.

[0016] The beneficial effects of the present invention are as follows: the first unwinding assembly and the second unwinding assembly of the present invention both include an unwinding support, a mounting plate, a connecting shaft, an unwinding shaft, a rotation drive module and a translation drive module. The unwinding shaft is driven back and forth by the translation drive module, so that the unwinding shaft can be moved out of the protective cover or into the protective cover through the window of the protective cover. By moving the unwinding shaft to the outside of the protective cover, the operator can perform the reel changing and splicing operations outside the protective cover, which increases the operating space for the operator and reduces the operating risks of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a structural diagram of an unwinding mechanism and a protective cover provided by an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 The structural diagram of the unwinding mechanism shown;

[0020] Figure 3 yes Figure 2 The unwinding mechanism shown is a schematic structural diagram after removing the unwinding frame;

[0021] Figure 4 yes Figure 3 A schematic structural diagram of a first angle of the first unwinding component of the unwinding mechanism shown;

[0022] Figure 5 yes Figure 3 A schematic structural diagram of a first unwinding assembly of the unwinding mechanism at a second angle;

[0023] Figure 6 yes Figure 3 Exploded schematic diagram of the first unwinding assembly of the unwinding mechanism shown. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0025] Please refer to Figures 1 to 3 An embodiment of the present invention provides an unwinding mechanism, comprising an unwinding frame 10, a first unwinding assembly 20, and a second unwinding assembly 30. The first unwinding assembly 20 and the second unwinding assembly 30 are arranged symmetrically about the center of the unwinding frame 10. In actual application, the unwinding frame 10 is fixed in the protective cover 100 of the lithium battery production equipment and is close to the window 101 of the protective cover 100. Figure 1 As shown, the first unwinding assembly 20 and the second unwinding assembly 30 both correspond to the window 101 of the protective cover 100 .

[0026] Combine Figures 4 to 6 As shown, the first unwinding assembly 20 and the second unwinding assembly 30 both include an unwinding support 21, a mounting plate 22, a connecting shaft 23, an unwinding shaft 231, a rotation drive module and a translation drive module.

[0027] The unwinding support 21 is located at the rear of the unwinding frame 10 and one end of the unwinding support 21 is arranged on one side of the unwinding frame 10, that is, the side of the unwinding frame 10 away from the window 101, and the other end of the unwinding support 21 extends backward. The mounting plate 22 is slidably arranged at the top of the unwinding support 21, and the length direction of the mounting plate 22 is the same as the length direction of the unwinding support 21. In this embodiment, a slider 221 is provided at the top of the unwinding support 21, and a slide rail 222 is provided at the bottom end of the mounting plate 22. The length direction of the slide rail 222 is the same as the length direction of the mounting plate 22. The slide rail 222 slides with the slider 221. There are two slide rails 222, and the two slide rails 222 are arranged side by side on the left and right. There are two sliders 221 that slide with each slide rail 222. It can be understood that the number of slide rails 222 and sliders 221 can be set according to actual conditions.

[0028] The rotary drive module is arranged at the top of the mounting plate 22 and is located behind the connecting shaft 23. The unwinding shaft 231 is located in front of the unwinding frame 10. In actual use, the unwinding shaft 231 is located between the unwinding frame 10 and the window 101 of the protective cover 100. The unwinding shaft 231 is used to install the base material roll 300, which is a diaphragm material roll or a pole piece material roll. One end of the connecting shaft 23 is connected to the rotary drive module, and the other end of the connecting shaft 23 passes through the first through hole 11 of the unwinding frame 10 and is connected to one end of the unwinding shaft 231. The other end of the unwinding shaft 231 extends forward. The unwinding shaft 231 is preferably an air-expanding shaft. The rotary drive module is used to drive the connecting shaft 23 to rotate, thereby driving the unwinding shaft 231 to rotate. The rotation of the unwinding shaft 231 can realize the unwinding of the substrate of the base material roll 300. The translation drive module is arranged on the unwinding support 21 and connected to the mounting plate 22. The translation drive module is used to drive the mounting plate 22 to move forward and backward, thereby driving the rotation drive module, the unwinding shaft 231, and the connecting shaft 23 to move forward and backward. In actual application, by driving the unwinding shaft 231 to move forward, the unwinding shaft 231 can be moved out of the protective cover 100 through the window 101 of the protective cover 100, as shown in FIG. Figure 1 As shown, by driving the unwinding shaft 231 to move backward, the unwinding shaft 231 can be re-entered into the interior of the protective cover 100 through the window 101 of the protective cover 100. During the forward and backward movement of the mounting plate 22, the mounting plate 22 can pass through the first through-hole 11, and the mounting plate 22 can drive the slide rail 222 to move forward and backward relative to the slider 221. When the slide rail 222 moves forward and backward, the slide rail 222 can pass through the first through-hole 11.

[0029] In this embodiment, a support seat 223 is provided at the top of the mounting plate 22. The support seat 223 has an arcuate groove at its top end. The arcuate groove engages with the connecting shaft 23, allowing the connecting shaft 23 to rotate relative to the support seat 223. The support seats 223 provide support for the connecting shaft 23. The number of support seats 223 can be adjusted based on actual needs. The forward and backward movement of the mounting plate 22 drives the forward and backward movement of the support seats 223.

[0030] The rotary drive module includes a first motor 241, a reducer 242, and a synchronous belt drive unit. The reducer 242 is mounted on the top of the mounting plate 22 via a reducer base 243. The reducer base 243 is located near the end of the mounting plate 22 away from the unwinding rack 10. The first motor 241 is mounted on the reducer 242, and the output end of the first motor 241 is connected to the input end of the reducer 242. The output end of the reducer 242 is located above one end of the connecting shaft 23. The output end of the reducer 242 passes through a through hole 2431 in the reducer base 243 and is connected to one end of the connecting shaft 23 via the synchronous belt drive unit. The first motor 241 is used to drive the connecting shaft 23 to rotate through the reducer 242 and the synchronous belt drive unit. The forward and backward movement of the mounting plate 22 drives the first motor 241, the reducer 242, the synchronous belt drive unit, and the reducer base 243 to move forward and backward.

[0031] The synchronous belt drive unit includes a driving pulley 2441, a driven pulley 2442, and a synchronous belt 2443 that is sleeved around the outer circumferences of the driving pulley 2441 and the driven pulley 2442. The driving pulley 2441 is sleeved around the outer circumference of the output end of the speed reducer 242, and the driven pulley 2442 is sleeved around the outer circumference of one end of the connecting shaft 23. The first motor 241 is used to drive the driving pulley 2441 through the speed reducer 242, thereby driving the connecting shaft 23 to rotate through the driven pulley 2442 and the synchronous belt 2443.

[0032] The driving pulley 2441, the driven pulley 2442, and the synchronous belt 2443 are all housed in a protective cover 245, which is disposed at the top of the mounting plate 22 and between the reducer base 243 and the unwinding frame 10. The protective cover 245 has a first clearance position for circumventing the output end of the reducer 242 and a second clearance position 2451 for circumventing the connecting shaft 23. The protective cover 245 protects the driving pulley 2441, the driven pulley 2442, and the synchronous belt 2443.

[0033] The translation drive module includes a second motor 251, a screw rod 252 and a nut 253. The second motor 251 is arranged at the other end of the unwinding support 21 through a motor seat 2511. The screw rod 252 is located in the unwinding support 21, and the length direction of the screw rod 252 is the same as the length direction of the unwinding support 21. One end of the screw rod 252 is connected to the output end of the second motor 251 through a coupling 2521, and the other end of the screw rod 252 is rotatably arranged at the top of the unwinding support 21 through a screw rod bearing seat. The nut 253 is threadedly engaged with the screw rod 252. A connecting piece 254 is provided at the bottom end of the mounting plate 22, and an avoidance hole 211 corresponding to the connecting piece 254 is provided at the top end of the unwinding support 21. The avoidance hole 211 is located between the two slide rails 222, and the length direction of the avoidance hole 211 is the same as the length direction of the mounting plate 22. The end of the connecting piece 254 away from the mounting plate 22 passes through the avoidance hole 211 and is connected to the nut 253. The second motor 251 is used to drive the screw rod 252 to rotate, thereby driving the nut 253 to move forward and backward. The forward and backward movement of the nut 253 can drive the connecting member 254 to move forward and backward between the two ends of the avoidance hole 211, thereby driving the mounting plate 22 to move forward and backward.

[0034] A first support member 26 is provided at one end of the speed reducer base 243, near the center of the unwinding frame 10. A second support member 27, corresponding to the first support member 26, is provided in front of the unwinding frame 10. A guide rod 28 is provided between the first and second support members 26, 27. The guide rod 28 extends through a second through-hole in the unwinding frame 10. The second through-hole is located between the first through-hole and the center of the unwinding frame 10. One end of a connecting plate 29 is connected to one end of the second support member 28. The other end of the connecting plate 29 has a through-hole. The other end of the connecting plate 29 is mounted on the outer circumference of the connecting shaft 23 through the through-hole. A rotating bearing is provided in the through-hole and is mounted on the outer circumference of the connecting shaft 23. The forward and backward movement of the speed reducer base 243 and the connecting shaft 23 drives the forward and backward movement of the first and second support members 26, 27, and guide rod 28. The guide rod 28 guides the forward and backward movement of the connecting shaft 23. The rotating bearing provides support for the rotation of the connecting shaft 23.

[0035] A linear bearing 281 is provided in the second through hole of the unwinding frame 10 , and the linear bearing 281 is sleeved on the outer periphery of the guide rod 28 . The provided linear bearing 281 provides support for the movement of the guide rod 28 .

[0036] When the unwinding shaft 231 of the first unwinding assembly 20 is used up, the operator first opens the two window doors 102 on the window 101 of the protective cover 100, and then drives the corresponding unwinding shaft 231 forward through the translation drive module of the first unwinding assembly 20 and the translation drive module of the second unwinding assembly 30 respectively, so as to move the unwinding shaft 231 out of the protective cover 100 through the window 101 of the protective cover 100, and then the operator installs a new base material roll 300 on the second unwinding assembly 3 The unwinding shaft 231 of the first unwinding assembly 20 is driven by the first unwinding assembly 20 to move the unwinding shaft 231 backwards, so as to move the unwinding shaft 231 back into the interior of the protective cover 100 through the window 101 of the protective cover 100. The operator then closes the two window doors 102 on the window 101 of the protective cover 100, and then drives the corresponding unwinding shaft 231 to rotate by the rotation drive module of the second unwinding assembly 30, so that the substrate of the new base material roll 300 can be unwound through the unwinding shaft 231.

[0037] The first unwinding assembly 20 and the second unwinding assembly 30 of the utility model both include an unwinding support 21, a mounting plate 22, a connecting shaft 23, an unwinding shaft 231, a rotation drive module and a translation drive module. The unwinding shaft 231 is driven back and forth by the translation drive module, so that the unwinding shaft 231 can be moved out of the protective cover 100 or moved into the protective cover 100 through the window 101 of the protective cover 100. By moving the unwinding shaft 231 to the outside of the protective cover 100, the operator can perform reel changing and tape splicing operations outside the protective cover 100, which increases the operator's working space and reduces the operator's operating risks.

[0038] The present invention also provides a lithium battery production device, comprising the above-mentioned unwinding mechanism and protective cover 100 , wherein the unwinding frame 10 of the unwinding mechanism is fixed in the protective cover 100 , and the unwinding shaft 231 is located between the unwinding frame 10 and the window 101 of the protective cover 100 .

[0039] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A reeling mechanism comprising a reeling frame and a first reeling assembly and a second reeling assembly arranged symmetrically on both sides, characterized in that: The cam is connected to the first support frame and the second support frame is connected with the support frame by the support leg.

2. The unwinding mechanism according to claim 1, characterized in that: The rotary drive module includes a first motor, a reducer and a synchronous belt transmission unit. The reducer is arranged at the top of the mounting plate through a reducer base. The first motor is arranged on the reducer. The output end of the first motor is connected to the input end of the reducer. The output end of the reducer passes through the through hole of the reducer base and is connected to one end of the connecting shaft through the synchronous belt transmission unit. The first motor is used to drive the connecting shaft to rotate through the reducer and the synchronous belt transmission unit.

3. The unwinding mechanism according to claim 2, characterized in that: The synchronous belt transmission unit includes a driving wheel, a driven wheel and a synchronous belt sleeved on the outer periphery of the driving wheel and the driven wheel. The driving wheel is sleeved on the outer periphery of the output end of the reducer, and the driven wheel is sleeved on the outer periphery of one end of the connecting shaft.

4. The unwinding mechanism according to claim 1, characterized in that: A support seat is provided at the top of the mounting plate, and an arc-shaped groove is provided at the top of the support seat. The arc-shaped groove cooperates with the connecting shaft, and the connecting shaft can rotate relative to the support seat.

5. The unwinding mechanism according to claim 1, characterized in that: The translation drive module includes a second motor, a screw rod and a nut. The second motor is arranged at the other end of the unwinding support through a motor seat, the screw rod is located in the unwinding support, one end of the screw rod is connected to the output end of the second motor, and the other end of the screw rod is rotatably arranged at the top of the unwinding support, the nut is threadably engaged with the screw rod, the bottom end of the mounting plate is provided with a connecting piece, and the top end of the unwinding support is provided with an avoidance hole corresponding to the connecting piece, the end of the connecting piece away from the mounting plate passes through the avoidance hole and is connected to the nut, the second motor is used to drive the screw rod to rotate, thereby driving the nut to move forward and backward, and the forward and backward movement of the nut can drive the connecting piece to move forward and backward between the two ends of the avoidance hole, thereby driving the mounting plate to move forward and backward.

6. The unwinding mechanism according to claim 1, characterized in that: A slider is provided at the top of the unwinding support, and a slide rail is provided at the bottom end of the mounting plate. The slide rail slides in cooperation with the slider. When the mounting plate moves forward and backward, the mounting plate can drive the slide rail to move forward and backward relative to the slider. When the slide rail moves forward and backward, the slide rail can pass through the first through hole.

7. The unwinding mechanism according to claim 3, characterized in that: The driving wheel, driven wheel and synchronous belt are all accommodated in a protective cover, and the protective cover is arranged at the top of the mounting plate and located between the reducer base and the unwinding rack. The protective cover is provided with a first avoidance position for avoiding the output end of the reducer and a second avoidance position for avoiding the connecting shaft.

8. The unwinding mechanism according to claim 2, characterized in that: A first support member is provided at one end of the reducer seat, a second support member corresponding to the first support member is provided in front of the unwinding frame, a guide rod is provided between the first support member and the second support member, the guide rod is arranged through the second through hole of the unwinding frame, one end of the connecting plate is connected to one end of the second support member, the other end of the connecting plate has a connecting plate through hole, the other end of the connecting plate is sleeved on the outer periphery of the connecting shaft through the connecting plate through hole, a rotating bearing is provided in the connecting plate through hole, and the rotating bearing is sleeved on the outer periphery of the connecting shaft.

9. The unwinding mechanism according to claim 8, characterized in that: A linear bearing is provided in the second through hole of the unwinding frame, and the linear bearing is sleeved on the outer periphery of the guide rod.

10. A lithium battery production equipment, characterized in that: The invention comprises an unwinding mechanism as claimed in any one of claims 1 to 9.

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