Winding machine winding needle mounting mechanism, winding needle module and lithium battery winding equipment

Abstract

The utility model discloses a winding machine winding needle installation mechanism, winding needle module and lithium battery winding equipment wherein the winding machine winding needle installation mechanism comprises a first rotary disk and a second rotary disk, a guide rail installation plate is arranged between the first rotary disk and the second rotary disk, and a linear guide rail pair is arranged on the guide rail installation plate. A movable mounting seat is arranged on the linear guide rail pair, a first motor set is arranged on the movable mounting seat and comprises a first driving motor and a speed reducer, the output end of the speed reducer is used for mounting a winding needle, and a needle penetrating and pulling driving device is further arranged on the first rotary disc or the second rotary disc. The needle threading and pulling driving device is used for driving the movable mounting base and the first motor set to move in the guiding direction of the linear guide rail pair so as to drive the winding needle to achieve needle threading and pulling functions. The winding machine winding needle mounting mechanism, the winding needle module and the lithium battery winding equipment have the advantages of being simple in structure, small in occupied space, convenient to mount and maintain, low in energy consumption, low in implementation cost and the like which are not possessed by the prior art.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery production, in particular to a winding needle installation mechanism of a winding machine, a winding needle module and lithium battery winding equipment. Background Art

[0002] In the field of lithium battery manufacturing, battery winding machine is one of the commonly used battery manufacturing equipment. Battery winding machine includes many components and devices, among which the core component is the winding mechanism. The winding mechanism of the battery winding machine generally integrates the functions of winding needle rotation, station change, needle insertion and extraction, so as to realize the function of winding various materials such as positive electrode sheets, negative electrode sheets, and separators into battery cells according to specific processes.

[0003] In a battery winding machine, its winding mechanism generally integrates multiple groups of winding needle assemblies, so that different workstations are equipped with winding needle assemblies to perform corresponding tasks, thereby improving production efficiency. For each group of winding needle assemblies, during the operation of the winding machine, the winding needle assemblies need to circulate on different workstations, and then perform different winding tasks at different workstations. Each group of winding needle assemblies needs to be equipped with a winding power device to complete the above-mentioned winding tasks. However, in the existing winding machines, since the winding power device is not directly connected to the winding needle assembly, and the winding needle assembly needs to circulate in multiple workstations, it is necessary to install a complex power transmission device to transmit the power of the winding power device to each group of winding needle assemblies, which results in a very complex structure of the mechanism and a very large space occupied. Due to the complex structure, assembly and subsequent maintenance are very difficult, and the reliability is insufficient. The production process consumes a lot of energy, seriously affecting production efficiency and increasing production costs.

[0004] Therefore, the purpose of the utility model is to provide a new technical solution to solve the existing technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a winding needle installation mechanism for a winding machine, a winding needle module and a lithium battery winding device, which solve the technical defects of the prior art such as complex structure, large space occupation, difficult assembly and maintenance, high energy consumption and high production cost.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A winding needle installation mechanism of a winding machine includes a first turntable and a second turntable fixed to the first turntable, a plurality of guide rail mounting plates are arranged between the first turntable and the second turntable, a linear guide pair is arranged on the guide rail mounting plate, a movable mounting seat is arranged on the linear guide pair, a first motor group is arranged on the movable mounting seat, the first motor group includes a first drive motor and a reducer, the output end of the reducer is used to install the winding needle, a needle threading and pulling drive device is also arranged on the first turntable or the second turntable, the needle threading and pulling drive device is used to drive the movable mounting seat and the first motor group to move along the guide direction of the linear guide pair to drive the winding needle to realize the needle threading and needle pulling functions.

[0008] As a further improvement of the above technical solution, a winding needle mounting seat is provided at the output end of the reducer, and the winding needle mounting seat is used to install the winding needle.

[0009] As a further improvement of the above technical solution, the movable mounting seat includes a connecting part and a mounting part, the connecting part is fixedly mounted on the slide seat of the linear guide pair, the mounting part has a through hole inside, the reducer is fixedly mounted in the through hole, the first drive motor is fixedly mounted at the input end of the reducer, and the needle winding mounting seat is arranged at the output end of the reducer.

[0010] As a further improvement of the above technical solution, a first position sensor is arranged on the movable mounting seat, and a first position sensing piece adapted to the first position sensor is arranged on the winding needle mounting seat; a second position sensor is arranged on the guide rail mounting plate, and a second position sensing piece adapted to the second position sensor is arranged on the movable mounting seat.

[0011] As a further improvement of the above technical solution, the needle insertion and extraction drive device includes a second motor group arranged on the second turntable and a screw nut pair arranged between the first turntable and the second turntable, the output end of the second motor group is connected to one end of the screw of the screw nut pair and can drive the screw of the screw nut pair to rotate, the nut of the screw nut pair is fixedly connected to the movable mounting seat through a connecting block, and the second motor group can drive the movable mounting seat and the first motor group to move along the guide direction of the linear guide pair through the screw nut pair.

[0012] As a further improvement of the above technical solution, the second motor group includes a second drive motor and a coupling arranged between the output end of the second drive motor and the screw nut pair, and the second drive motor is installed on the second turntable through a motor base.

[0013] As a further improvement of the above technical solution, it also includes a conductive slip ring used in conjunction with the first motor group and the second motor group, the front end of the conductive slip ring is fixedly connected to the rear end of the second turntable through a slip ring support seat, and the rear end of the conductive slip ring is fixedly connected to the support frame or wall panel of the winding equipment through a slip ring support plate.

[0014] As a further improvement of the above technical solution, the linear guide pairs have three pairs, the first motor groups have three groups, and the three first motor groups are evenly arranged in the circumferential direction of the first turntable.

[0015] The utility model also provides:

[0016] A winding needle module comprises the above-mentioned winding needle installation mechanism of the winding machine and a winding needle installed at the output end of the first motor group and driven to rotate by the first motor group.

[0017] The utility model also provides:

[0018] A lithium battery winding device comprises a wall panel, on which the above-mentioned winding machine needle mounting mechanism or the above-mentioned winding needle module is arranged, wherein the first turntable is rotatably mounted on the wall panel.

[0019] The beneficial effects of the utility model are as follows: the utility model provides a winding needle installation mechanism, a winding needle module and a lithium battery winding device for a winding machine, wherein the winding needle installation mechanism, the winding needle module and the lithium battery winding device directly install the winding needle through a first driving motor and a reducer, and can directly drive the first driving motor, the reducer and the winding needle through a needle insertion and extraction driving device to realize the needle insertion and extraction function, thereby eliminating the complex power transmission device in the existing winding machine, effectively simplifying the structure and reducing the volume. Due to the simplification of the structure, the entire winding needle installation mechanism, the winding needle module and the lithium battery winding device are more convenient to install and maintain, the equipment reliability is higher, the equipment cost is lower, and the production efficiency can be further improved; in addition, since the complex power transmission device is eliminated, the energy consumption loss in the power transmission process is less and the transmission efficiency is high.

[0020] In summary, this type of winding machine needle installation mechanism, winding needle module and lithium battery winding equipment solves the technical defects of the prior art such as complex structure, large space occupation, difficult assembly and maintenance, high energy consumption and high production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the assembly of the winding needle installation mechanism of the winding machine in the utility model;

[0023] Figure 2 It is a schematic assembly diagram of the winding needle installation mechanism of the winding machine in the utility model from another angle;

[0024] Figure 3 It is a schematic assembly diagram of the winding needle installation mechanism of the winding machine in the utility model at a third angle;

[0025] Figure 4 yes Figure 3 Sectional view in the AA direction;

[0026] Figure 5 It is a schematic diagram of the application state of the winding needle installation mechanism of the winding machine in the utility model. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technical personnel in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other, refer to Figure 1-5 .

[0028] The utility model provides:

[0029] A winding needle installation mechanism of a winding machine includes a first turntable 11 and a second turntable 12 fixed to the first turntable 11, a plurality of guide rail mounting plates 13 are arranged between the first turntable 11 and the second turntable 12, a linear guide pair 14 is arranged on the guide rail mounting plate 13, a movable mounting seat 2 is arranged on the linear guide pair 14, a first motor group 3 is arranged on the movable mounting seat 2, the first motor group 3 includes a first drive motor 31 and a reducer 32, the output end of the reducer 32 is used to install the winding needle, and a needle threading and pulling drive device is also arranged on the first turntable 11 or the second turntable 12, the needle threading and pulling drive device is used to drive the movable mounting seat 2 and the first motor group 3 to move along the guide direction of the linear guide pair 14 to drive the winding needle to realize the needle threading and needle pulling functions.

[0030] In the present technical solution, the first drive motor 31 in the first motor group 3 directly drives the winding needle to operate through the reducer 32, and then the needle insertion and extraction drive device drives the first motor group 3 and the winding needle to move synchronously to realize the needle insertion and extraction function of the winding needle, so that the winding needle can be directly driven by the first drive motor 31 and the reducer 32. When the winding needle needs to change its position, the first drive motor 31 and the reducer 32 can change the position together with the winding needle, which greatly simplifies the structure. Compared with the complex structure of the winding needle power transmission device in the prior art, the above-mentioned structure of the present technical solution can greatly simplify the structure, reduce the occupied space volume, lower the cost of the mechanism, and make subsequent assembly and maintenance easier and more stable. In addition, due to the simplification of the transmission mechanism, the energy consumption in the production process is smaller, which further saves costs.

[0031] Specifically, in the above technical solution, a winding needle mounting seat 5 is provided at the output end of the reducer 32, and the winding needle mounting seat 5 is used to mount the winding needle. The movable mounting seat 2 includes a connecting portion and a mounting portion, and the connecting portion is fixedly mounted on the slide seat of the linear guide pair 14. The mounting portion has a through hole inside, and the reducer 32 is fixedly mounted in the through hole. The first drive motor 31 is fixedly mounted at the input end of the reducer 32, and the winding needle mounting seat 5 is arranged at the output end of the reducer 32. When in use, the winding needle is mounted on the winding needle mounting seat 5, and the winding needle extends from the front end of the first rotary disk 11. After winding starts, the first drive motor 31 starts to work, and the power output by the first drive motor 31 drives the winding needle to rotate after the speed change of the reducer 32, thereby providing power for the winding needle to wind the battery cell.

[0032] When it is necessary to change the workstation, the first turntable 11 and the second turntable 12 rotate synchronously to the next workstation, and the winding needle also rotates to the next workstation synchronously. In the present technical solution, when it is necessary to thread the needle, the needle threading and pulling drive device drives the movable mounting seat 2, the first drive motor 31, the reducer 32, the winding needle mounting seat 5 and the winding needle to move toward the front end of the winding needle, and when it is necessary to pull the needle, the needle threading and pulling drive device drives the movable mounting seat 2, the first drive motor 31, the reducer 32, the winding needle mounting seat 5 and the winding needle to move toward the rear end of the winding needle.

[0033] In addition, in order to control the rotation of the winding needle, the movable mounting seat 2 is provided with a first position sensor 61, and the winding needle mounting seat 5 is provided with a first position sensing sheet 62 adapted to the first position sensor 61, and the winding position and the number of winding turns of the winding needle are controlled by the mutual cooperation of the first position sensor 61 and the first position sensing sheet 62; in this embodiment, two first position sensors 61 are provided. In other embodiments, according to different production process requirements, the number of the first position sensors 61 can be set according to specific needs.

[0034] Furthermore, in order to control the moving position of the mobile mounting seat 2, a second position sensor 63 is provided on the guide rail mounting plate 13, and a second position sensing sheet 64 adapted to the second position sensor 63 is provided on the mobile mounting seat 2, and the moving range of the mobile mounting seat 2 is controlled by the second position sensor 63 and the second position sensing sheet 64. In actual application, the specific installation positions of the second position sensors 63 and the second position sensing sheet 64 can be adjusted as needed, thereby setting the specific moving range of the mobile mounting seat 2.

[0035] In the above technical solution, the needle threading and pulling drive device includes a second motor group 4 arranged on the second rotary disk 12 and a screw nut pair arranged between the first rotary disk 11 and the second rotary disk 12 (the screw nut pair is not shown in the figure due to the obstruction of other components), the output end of the second motor group 4 is connected to one end of the screw of the screw nut pair and can drive the screw of the screw nut pair to rotate, the nut of the screw nut pair is fixedly connected to the movable mounting seat 2 through the connecting block, and the second motor group 4 can drive the movable mounting seat 2 and the first motor group 3 to move along the guide direction of the linear guide pair 14 through the screw nut pair. When used, the second drive motor 41 can drive the movable mounting seat 2 and the first drive motor 31, the reducer 32, the needle winding mounting seat 5 and the needle winding to move forward and backward along the guide direction of the linear guide pair 14 through the screw nut pair, thereby realizing the needle threading and pulling functions of the needle winding. In other embodiments, under the condition of meeting the control requirements, other driving components that can meet the requirements, such as electric cylinders, can also be used to drive the winding needle to move back and forth to achieve the needle threading and pulling function, which will not be elaborated here.

[0036] In terms of specific structure, the second motor group 4 includes a second drive motor 41 and a coupling 42 provided between the output end of the second drive motor 41 and the screw nut pair, and the second drive motor 41 is installed on the second rotary disk 12 through a motor seat. In this embodiment, the first drive motor 31 and the second drive motor 41 are both servo motors.

[0037] In addition, in order to meet the power supply needs of the first drive motor 31 and the second drive motor 41, the winding needle installation mechanism of the winding machine also includes a conductive slip ring 7 used in conjunction with the first motor group 3 and the second motor group 4, and the external power is supplied to the first drive motor 31 and the second drive motor 41 through the conductive slip ring 7. In terms of the specific installation structure, the front end of the conductive slip ring 7 is fixedly connected to the rear end of the second rotary disk 12 through a slip ring support seat 71, and the rear end of the conductive slip ring 7 is fixedly connected to the support frame or wall panel 9 of the winding device through a slip ring support plate 72.

[0038] In this embodiment, there are three pairs of linear guide rails 14, and there are three groups of the first motor groups 3. The three groups of first motor groups 3 are evenly arranged in the circumferential direction of the first rotary disk 11. By setting three winding needles to cooperate with three workstations to work simultaneously, the work efficiency can be effectively improved. In some other embodiments, when there is no interference in the movement of the components, the implementer can also set two groups of winding needles, four groups of winding needles, five groups of winding needles, etc. on a winding machine winding needle installation mechanism as needed.

[0039] Based on the above winding machine winding needle installation mechanism, the utility model also provides:

[0040] A winding needle module, the winding needle module comprises the above-mentioned winding machine winding needle installation mechanism and a winding needle installed at the output end of the first motor group 3 and driven to rotate by the first motor group 3.

[0041] Based on the above-mentioned winding machine needle installation mechanism and needle winding module, the utility model also provides:

[0042] A lithium battery winding device comprises a wall panel 9 on which the winding needle mounting mechanism or the winding needle module is provided, wherein the first turntable 11 is rotatably mounted on the wall panel 9.

[0043] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A winding needle installation mechanism for a winding machine, characterized in that: The invention comprises a first rotating disk (11) and a second rotating disk (12) fixed to the first rotating disk (11); a plurality of guide rail mounting plates (13) are arranged between the first rotating disk (11) and the second rotating disk (12); a linear guide pair (14) is arranged on the guide rail mounting plate (13); a movable mounting seat (2) is arranged on the linear guide pair (14); a first motor group (3) is arranged on the movable mounting seat (2); the first motor group (3) comprises a first drive motor (31) and a reducer (32); the output end of the reducer (32) is used to install a needle winding; a needle threading and pulling drive device is also arranged on the first rotating disk (11) or the second rotating disk (12); the needle threading and pulling drive device is used to drive the movable mounting seat (2) and the first motor group (3) to move along the guide direction of the linear guide pair (14) to drive the needle winding to realize the needle threading and needle pulling functions.

2. A winding needle installation mechanism for a winding machine according to claim 1, characterized in that: The output end of the reducer (32) is provided with a winding needle mounting seat (5), and the winding needle mounting seat (5) is used to mount the winding needle.

3. A winding needle installation mechanism for a winding machine according to claim 2, characterized in that: The movable mounting seat (2) comprises a connecting portion and a mounting portion, the connecting portion is fixedly mounted on the slide seat of the linear guide pair (14), the mounting portion has a through hole inside, the reducer (32) is fixedly mounted in the through hole, the first drive motor (31) is fixedly mounted at the input end of the reducer (32), and the needle winding mounting seat (5) is arranged at the output end of the reducer (32).

4. A winding needle installation mechanism for a winding machine according to claim 2, characterized in that: The movable mounting seat (2) is provided with a first position sensor (61), and the winding needle mounting seat (5) is provided with a first position sensing piece (62) adapted to the first position sensor (61); the guide rail mounting plate (13) is provided with a second position sensor (63), and the movable mounting seat (2) is provided with a second position sensing piece (64) adapted to the second position sensor (63).

5. The winding needle installation mechanism of a winding machine according to claim 1, characterized in that: The needle insertion and extraction drive device comprises a second motor group (4) arranged on the second rotary disk (12) and a screw nut pair arranged between the first rotary disk (11) and the second rotary disk (12); the output end of the second motor group (4) is connected to one end of the screw of the screw nut pair and can drive the screw of the screw nut pair to rotate; the nut of the screw nut pair is fixedly connected to the movable mounting seat (2) through a connecting block; the second motor group (4) can drive the movable mounting seat (2) and the first motor group (3) to move along the guide direction of the linear guide pair (14) through the screw nut pair.

6. A winding needle installation mechanism for a winding machine according to claim 5, characterized in that: The second motor group (4) comprises a second drive motor (41) and a coupling (42) arranged between the output end of the second drive motor (41) and the screw nut pair; the second drive motor (41) is mounted on the second rotary disk (12) via a motor seat.

7. A winding needle installation mechanism for a winding machine according to claim 5, characterized in that: It also comprises a conductive slip ring (7) used in conjunction with the first motor group (3) and the second motor group (4), wherein the front end of the conductive slip ring (7) is fixedly connected to the rear end of the second rotary disk (12) via a slip ring support seat (71), and the rear end of the conductive slip ring (7) is fixedly connected to a support frame or a wall panel (9) of the winding device via a slip ring support plate (72).

8. A winding needle installation mechanism for a winding machine according to any one of claims 1 to 7, characterized in that: The linear guide rail pairs (14) have three pairs, the first motor groups (3) have three groups, and the three first motor groups (3) are evenly arranged in the circumferential direction of the first rotating disk (11).

9. A needle winding module, characterized in that: The winding needle module comprises the winding needle installation mechanism of any one of claims 1 to 8 and a winding needle installed at the output end of the first motor group (3) and driven to rotate by the first motor group (3).

10. A lithium battery winding device, characterized in that: The lithium battery winding equipment comprises a wall panel (9), on which is provided a winding machine needle mounting mechanism as described in any one of claims 1 to 8 or a winding needle module as described in claim 9, wherein the first turntable (11) is rotatably mounted on the wall panel (9).

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