Multi-shaft linkage secondary battery winding machine

Abstract

The present invention discloses a multi-shaft linkage secondary battery winding machine, and relates to the technical field of secondary battery manufacturing, the multi-shaft linkage secondary battery winding machine at least comprises a base, the base is provided with a winding system, the multi-shaft linkage secondary battery winding machine further comprises: a winding assembly, the winding assembly is installed on the base; the winding assembly comprises a bottom plate fixed on the base; the support frame is fixed on the bottom plate; the conversion disc is rotationally arranged on the base; the conversion motor is fixed on the bottom plate, and the output end of the conversion motor is meshed with the conversion disc through driving teeth; one end of the connecting plate is fixed to the conversion disc, a winding motor bin is fixed to the other end of the connecting plate, and the winding motor bin is rotationally connected with the supporting frame; one ends of the two driving shafts are symmetrically and rotationally arranged in the winding motor bin, and the other ends of the two driving shafts are rotationally arranged on the conversion disc; the number of the roll core assemblies is two, and the roll core assemblies are symmetrically arranged on the connecting plate.

Description

Technical Field

[0001] The present invention relates to the technical field of secondary battery manufacturing, and specifically to a multi-axis linkage secondary battery winding machine. Background Art

[0002] A secondary battery, also known as a rechargeable battery or a storage battery, refers to a battery that can be reused by activating active substances through charging after discharging. During the manufacturing process, a winding machine is used to wind the electrode sheet and the separator to form a core.

[0003] The existing winding machine first clamps the separator and the electrode sheet during winding, and then completes the winding by rotation. However, after the winding on the winding core is completed, the electrode sheet and the separator at the clamping position are bent and cannot be reset, which affects the forming effect of the core. Moreover, when the core is taken out, the friction between the core and the winding core is large, resulting in the offset of the electrode sheet and the separator.

[0004] In view of the above problems, the present invention provides a multi-axis linkage secondary battery winding machine to solve the above problems. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: A multi-axis linkage secondary battery winding machine, including a base, on which a winding system is installed, and is characterized by further including:

[0006] A winding assembly, which is installed on the base;

[0007] The winding assembly includes:

[0008] A bottom plate, fixed on the base;

[0009] A support frame, fixed on the bottom plate;

[0010] A conversion disk, rotatably arranged on the base;

[0011] A conversion motor, fixed on the bottom plate, and the output end is engaged with the conversion disk by a driving gear;

[0012] A connecting plate, one end of which is fixed on the conversion disk, and the other end is fixed with a winding motor housing, and the winding motor housing is rotatably connected with the support frame;

[0013] Driving shafts, configured to be two, one end of which is symmetrically and rotatably arranged in the winding motor housing, and the other end is rotatably arranged on the conversion disk;

[0014] Core assemblies, configured to be two, symmetrically arranged on the connecting plate, and are driven by a synchronous gear with the driving shafts. The synchronous gear is slidably connected with the driving shafts and is fixedly connected with the core assemblies by a connecting seat.

[0015] Further, preferably, the winding system at least includes a supply mechanism, the supply mechanism is installed on the base, the supply mechanism is controlled by a tension control mechanism for tension, a cutting mechanism and a discharging mechanism are also installed on the base, and the cutting mechanism and the discharging mechanism are away from the supply mechanism.

[0016] Further, preferably, the core assembly includes:

[0017] An auxiliary plate, slidably arranged on the connecting plate;

[0018] A pushing cylinder body, fixed on the connecting plate, and fixedly connected to the auxiliary plate by a pushing plate at the output end;

[0019] A winding shaft, rotatably arranged on the auxiliary plate by a bearing seat;

[0020] A driving assembly, fixed on the bearing seat and connected to the winding shaft;

[0021] A driving column, fixed at one end of the winding shaft away from the driving assembly;

[0022] An adjusting assembly, installed in the driving column;

[0023] A clamping assembly, installed in the driving column and slidably connected to the adjusting assembly.

[0024] Further, preferably, the driving assembly includes a driving assembly one and a driving assembly two, the driving assembly one and the driving assembly two are symmetrically fixed on the bearing seat, and the driving assembly one and the driving assembly two have the same structure, and both include:

[0025] A driving cylinder body, with a driving plate fixed at the output end;

[0026] A sliding rod, slidably arranged in the winding shaft;

[0027] A driving disc, fixed at one end of the sliding rod away from the winding shaft and driven by the driving plate.

[0028] Further, preferably, an adjusting rod is fixed at one end of the sliding rod of the driving assembly one away from the driving plate, an adjusting groove is formed on the adjusting rod, a clamping rod is fixed at one end of the sliding rod of the driving assembly two away from the driving plate, and a clamping groove is formed on the clamping rod.

[0029] Further, preferably, the adjusting assembly includes:

[0030] Guide rails, configured to be two, both fixed in the driving column;

[0031] Adjusting blocks, configured to be two, symmetrically slidably arranged on the two guide rails;

[0032] A reset spring, one end of which is connected to the adjusting block and the other end is connected inside the driving column;

[0033] An adjusting wheel is rotatably arranged on one side where two adjusting blocks are close to each other and is in contact with the adjusting groove on the adjusting rod;

[0034] An adjusting plate is fixed on the adjusting block.

[0035] Furthermore, preferably, the clamping assembly includes:

[0036] A fixed block is fixed inside the driving column;

[0037] A clamping block is slidably arranged on the fixed block by a guide rail slider, and a tension spring is arranged between the clamping block and the fixed block;

[0038] A fixed clamping plate is fixed on the fixed block;

[0039] A sliding clamping plate is fixed on the clamping block;

[0040] A leveling plate is slidably arranged on the driving column.

[0041] Furthermore, preferably, an opening and closing wheel is rotatably arranged on one side of the clamping block close to the fixed block, the opening and closing wheel is in contact with the clamping groove of the clamping rod, a fixed rack is fixed on the clamping block, a sliding rack is fixed on the leveling plate, the sliding rack is slidably connected to the driving column, and a gear is meshed between the fixed rack and the sliding rack, and the gear is rotatably arranged inside the driving column in contact.

[0042] Compared with the prior art, the present invention provides a multi-axis linkage secondary battery winding machine, which has the following beneficial effects:

[0043] In the present invention, through the cooperation of two symmetrically arranged core winding assemblies and a rotatable conversion disk, combined with synchronous gear transmission, rapid switching of the winding station is achieved. When winding at one station, unloading and loading can be synchronously completed at the other station, significantly reducing the downtime. By independently controlling the adjusting rod and the clamping rod through the driving cylinder body, the adjusting assembly and the clamping assembly are respectively driven to achieve precise adjustment of the core diameter and the clamping force. And when unloading, by driving the adjusting assembly to contract, the friction between the core and the adjusting plate is reduced, facilitating unloading. At the same time, the leveling plate can level the clamping end of the core to avoid bending at the initial position. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the overall structure of a multi-axis linkage secondary battery winding machine;

[0045] Figure 2Schematic diagram of the overall structure of the winding assembly of a multi-axis linkage secondary battery winding machine;

[0046] Figure 3 Schematic diagram of the structure of the core assembly of a multi-axis linkage secondary battery winding machine;

[0047] Figure 4 Schematic diagram of the structure of the drive assembly of a multi-axis linkage secondary battery winding machine;

[0048] Figure 5 Schematic diagram of the structure of the adjustment assembly of a multi-axis linkage secondary battery winding machine;

[0049] Figure 6 Schematic diagram of the structure of the clamping assembly of a multi-axis linkage secondary battery winding machine;

[0050] Figure 7 Partial structure schematic diagram of the clamping assembly of a multi-axis linkage secondary battery winding machine;

[0051] Figure 8 Schematic diagram of the discharging state of a multi-axis linkage secondary battery winding machine;

[0052] In the figure: 1, base; 2, supply mechanism; 3, tension control mechanism; 4, cutting mechanism; 5, discharging mechanism; 6, winding assembly; 61, bottom plate; 62, support frame; 63, conversion disk; 64, conversion motor; 65, connecting plate; 66, winding motor housing; 67, drive shaft; 68, synchronous gear; 69, core assembly; 681, connecting seat; 691, auxiliary plate; 692, pushing cylinder body; 693, pushing plate; 694, winding shaft; 695, drive assembly; 696, drive column; 697, adjustment assembly; 698, clamping assembly; 6951, drive assembly two; 6952, drive cylinder body; 6953, drive plate; 6954, sliding rod; 6955, drive disk; 6956, adjustment rod; 6957, clamping rod; 6971, guide rail; 6972, adjustment block; 6973, return spring; 6974, adjustment wheel; 6975, adjustment plate; 6981, fixed block; 6982, clamping block; 6983, fixed clamping plate; 6984, sliding clamping plate; 6985, leveling plate; 6986, sliding rack; 6987, gear; 6988, fixed rack; 6989, opening and closing wheel; 6990, tension spring; 7, core; 71, clamping end. Detailed implementation

[0053] Refer to Figures 1 - 8 , the present invention provides a technical solution: a multi-axis linkage secondary battery winding machine, including a base 1, a winding system is installed on the base 1, and it is characterized in that: it further includes:

[0054] Winding assembly 6, the winding assembly 6 is installed on the base 1;

[0055] The winding assembly 6 includes:

[0056] Base plate 61, fixed on the base 1;

[0057] Support frame 62, fixed on the base plate 61;

[0058] Conversion disk 63, rotatably arranged on the base 1;

[0059] Conversion motor 64, fixed on the base plate 61, and the output end is engaged with the conversion disk 63 by a driving gear;

[0060] Connecting plate 65, one end is fixed on the conversion disk 63, and the other end is fixed with a winding motor housing 66, and the winding motor housing 66 is rotatably connected with the support frame 62;

[0061] Drive shafts 67, configured to be two, one end is symmetrically and rotatably arranged in the winding motor housing 66, and the other end is rotatably arranged on the conversion disk 63;

[0062] Winding core assemblies 69, configured to be two, symmetrically arranged on the connecting plate 65, and are driven by a synchronous gear 68 with the drive shafts 67, the synchronous gear 68 is slidably connected with the drive shafts 67, and is fixedly connected with the winding core assemblies 69 by a connecting seat 681.

[0063] Wherein, through the cooperation of two symmetrically arranged winding core assemblies 69 and the rotatable conversion disk 63, combined with the transmission of the synchronous gear 68, the rapid switching of the winding stations is realized. When winding at one station, the other station can synchronously complete unloading, significantly reducing the downtime.

[0064] It should be noted that the synchronous gear 68 can slide on the drive shaft 67 through the connecting seat 681, and the relative rotation with the drive shaft 67 is restricted by a limiting groove.

[0065] In this embodiment, the winding system at least includes a supply mechanism 2, the supply mechanism 2 is installed on the base 1, the supply mechanism 2 is controlled by a tension control mechanism 3 for tension, and a cutting mechanism 4 and a unloading mechanism 5 are also installed on the base 1, and the cutting mechanism 4 and the unloading mechanism 5 are far away from the supply mechanism 2.

[0066] It should be noted that the winding system is an existing structure, and its specific structure is not described herein again. During operation, first, the pole piece and the separator are provided by the supply mechanism 2, then winding is performed by the winding core assemblies 69, after winding is completed, cutting is performed by the cutting mechanism 4, and then unloading is performed by the unloading mechanism 5. When the supply mechanism 2 supplies materials, the tension control mechanism 3 controls the tension magnitude.

[0067] In this embodiment, the core assembly 69 includes:

[0068] An auxiliary plate 691, which is slidably arranged on the connecting plate 65;

[0069] A pushing cylinder body 692, which is fixed on the connecting plate 65, and a pushing plate 693 is fixedly connected between the output end and the auxiliary plate 691;

[0070] A winding shaft 694, which is rotatably arranged on the auxiliary plate 691 by a bearing seat;

[0071] A driving assembly 695, which is fixed on the bearing seat and is connected to the winding shaft 694;

[0072] A driving column 696, which is fixed at one end of the winding shaft 694 away from the driving assembly 695;

[0073] An adjusting assembly 697, which is installed in the driving column 696;

[0074] A clamping assembly 698, which is installed in the driving column 696 and is slidably connected to the adjusting assembly 697.

[0075] That is to say, when discharging, the core that has completed winding is clamped by the discharging mechanism 5, and then the auxiliary plate 691 is slid by the pushing cylinder body 692, so as to cooperate with the discharging assembly 5 to complete the discharging operation of the core.

[0076] As a preferred embodiment, the driving assembly 695 includes a first driving assembly and a second driving assembly 6951. The first driving assembly and the second driving assembly 6951 are symmetrically fixed on the bearing seat, and the first driving assembly and the second driving assembly 6951 have the same structure and both include:

[0077] A driving cylinder body 6952, with a driving plate 6953 fixed at the output end;

[0078] A sliding rod 6954, which is slidably arranged in the winding shaft 694;

[0079] A driving disk 6955, which is fixed at one end of the sliding rod 6954 away from the winding shaft 694 and is driven by the driving plate 6953.

[0080] As a preferred embodiment, an adjusting rod 6956 is fixed at one end of the sliding rod 6954 of the first driving assembly away from the driving plate 6953. An adjusting groove is formed on the adjusting rod 6956. A clamping rod 6957 is fixed at one end of the sliding rod 6954 of the second driving assembly 6951 away from the driving plate 6953. A clamping groove is formed on the clamping rod 6957.

[0081] As a preferred embodiment, the adjusting assembly 697 includes:

[0082] Guide rails 6971, configured to be two, both fixed within the driving column 696;

[0083] Adjusting blocks 6972, configured to be two, symmetrically and slidably arranged on the two guide rails 6971;

[0084] Reset springs 6973, one end connected to the adjusting blocks 6972 and the other end connected within the driving column 696;

[0085] Adjusting wheels 6974, rotatably arranged on one side where the two adjusting blocks 6972 are close to each other and in contact with the adjusting grooves on the adjusting rod 6956;

[0086] Adjusting plates 6975, fixed to the adjusting blocks 6972.

[0087] That is to say, after determining the diameter of the core 7, the driving cylinder 6952 of the first driving assembly drives the sliding rod 6954 to slide, and drives the adjusting rod 6956 to slide, so that the adjusting wheel 6974 rolls in the adjusting groove, adjusting the distance between the two adjusting blocks 6972, completing the adjustment of the core diameter. And after each winding is completed, the two adjusting blocks 6972 are made to approach each other through the driving cylinder 6952, so as to facilitate the removal of the core 7 and avoid the offset of the pole pieces and the diaphragm of the core 7.

[0088] As a preferred embodiment, the clamping assembly 698 includes:

[0089] Fixed blocks 6981, fixed within the driving column 696;

[0090] Clamping blocks 6982, slidably arranged on the fixed blocks 6981 by using guide rail sliders, and a tension spring 6990 is arranged between the clamping blocks 6982 and the fixed blocks 6981;

[0091] Fixed clamping plates 6983, fixed to the fixed blocks 6981;

[0092] Sliding clamping plates 6984, fixed to the clamping blocks 6982;

[0093] Flattening plates 6985, slidably arranged on the driving column 696.

[0094] That is to say, when clamping the clamping end 71 of the core 7, the driving cylinder 6952 of the second driving assembly 6951 drives the clamping rod 6957 to slide, thereby driving the clamping block 6982 to slide to clamp the clamping end 71.

[0095] It should be noted that at the beginning of each winding, the entire flat plate 6985 is close to one side of the supply mechanism 2, so that the winding starts in the direction of the flat plate 6985.

[0096] As a preferred embodiment, an opening and closing wheel 6989 is rotatably provided on one side of the clamping block 6982 close to the fixed block 6981. The opening and closing wheel 6989 is in contact with the clamping groove of the clamping rod 6957. A fixed rack 6988 is fixed on the clamping block 6982, and a sliding rack 6986 is fixed on the flat plate 6985. The sliding rack 6986 is slidably connected to the driving column 696. A gear 6987 is engaged between the fixed rack 6988 and the sliding rack 6986. The gear 6987 is rotatably provided in the driving column 696.

[0097] Among them, when the winding of the winding core 7 is completed, the sliding clamping plate 6984 moves away from the fixed clamping plate 6983. At the same time, the fixed rack 6988 drives the gear 6987 to rotate and drives the sliding rack 6986 to slide in one direction, so that the flat plate 6985 pushes the clamping end 71 to complete leveling. After that, the sliding clamping plate 6984 slides towards the fixed clamping plate 6983 through the tension spring 6990. It should be noted that during sliding, the clamping rod 6957 is used for limiting to prevent the sliding clamping plate 6984 and the fixed clamping plate 6983 from contacting and closing, which is convenient for the clamping operation of the next group of winding cores 7.

[0098] Specifically, first, the supply mechanism 2 provides the pole piece and the diaphragm, then the winding core assembly 69 winds, after winding is completed, it is cut by the cutting mechanism 4, and then unloaded by the unloading mechanism 5. When the supply mechanism 2 supplies materials, the tension control mechanism 3 controls the tension size. During winding, through the cooperation of two symmetrically arranged winding core assemblies 69 and the rotatable conversion disk 63, the rapid switching of the winding station is realized. When one station is winding, the other station can synchronously complete unloading, significantly reducing the downtime. The driving assembly 695 drives the adjusting assembly 697 and the clamping assembly 698 respectively to realize the precise adjustment of the diameter and clamping force of the winding core 7. And during unloading, the driving adjusting assembly 697 contracts, thereby reducing the friction between the winding core 7 and the adjusting plate 6975, facilitating unloading. At the same time, the flat plate 6985 can level the clamping end of the winding core 7 to avoid bending at the initial position.

[0099] The above-mentioned is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A multi-axis linkage secondary battery winding machine, at least including a base (1), wherein a winding system is installed on the base (1), and it is characterized in that: It further includes: A winding assembly (6), which is installed on the base (1); The winding assembly (6) includes: A bottom plate (61), which is fixed on the base (1); A support frame (62), which is fixed on the bottom plate (61); A conversion disk (63), which is rotatably arranged on the base (1); A conversion motor (64), which is fixed on the bottom plate (61), and the output end is engaged with the conversion disk (63) by a driving gear; A connecting plate (65), one end of which is fixed on the conversion disk (63), and the other end is fixed with a winding motor housing (66), and the winding motor housing (66) is rotatably connected with the support frame (62); Drive shafts (67), which are configured to be two, one end of which is symmetrically and rotatably arranged in the winding motor housing (66), and the other end is rotatably arranged on the conversion disk (63); Winding core assemblies (69), which are configured to be two, symmetrically arranged on the connecting plate (65), and are driven by a synchronous gear (68) with the drive shaft (67). The synchronous gear (68) is slidably connected with the drive shaft (67) and is fixedly connected with the winding core assembly (69) by a connecting seat (681).

2. The multi-axis linkage secondary battery winding machine according to claim 1, wherein: The winding system at least includes a supply mechanism (2), the supply mechanism (2) is installed on the base (1), the supply mechanism (2) is controlled by a tension control mechanism (3), and a cutting mechanism (4) and a discharging mechanism (5) are also installed on the base (1). The cutting mechanism (4) and the discharging mechanism (5) are far away from the supply mechanism (2).

3. A multi-axis linkage secondary battery winding machine according to claim 1, characterized in that: The winding core assembly (69) includes: An auxiliary plate (691), which is slidably arranged on the connecting plate (65); A pushing cylinder body (692), which is fixed on the connecting plate (65), and the output end is fixedly connected with the auxiliary plate (691) by a pushing plate (693); A winding shaft (694), which is rotatably arranged on the auxiliary plate (691) by a bearing seat; A drive assembly (695), which is fixed on the bearing seat and is connected with the winding shaft (694); A drive column (696), which is fixed at one end of the winding shaft (694) far away from the drive assembly (695); An adjusting assembly (697), which is installed in the drive column (696); A clamping assembly (698), which is installed in the drive column (696) and is slidably connected with the adjusting assembly (697).

4. A multi-axis linkage secondary battery winding machine according to claim 3, characterized in that: The drive assembly (695) includes a drive assembly one and a drive assembly two (6951). The drive assembly one and the drive assembly two (6951) are symmetrically fixed on the bearing seat, and the drive assembly one and the drive assembly two (6951) have the same structure, and both include: A drive cylinder body (6952), and the output end is fixed with a drive plate (6953); A sliding rod (6954), which is slidably arranged in the winding shaft (694); A drive disk (6955), which is fixed at one end of the sliding rod (6954) far away from the winding shaft (694) and is driven by the drive plate (6953).

5. A multi-axis linkage secondary battery winding machine according to claim 4, characterized in that: One end of the sliding rod (6954) of the first driving assembly away from the driving plate (6953) is fixed with an adjusting rod (6956). An adjusting groove is provided on the adjusting rod (6956). One end of the sliding rod (6954) of the second driving assembly (6951) away from the driving plate (6953) is fixed with a clamping rod (6957). A clamping groove is provided on the clamping rod (6957).

6. A multi-axis linkage secondary battery winding machine according to claim 5, characterized in that: The adjusting assembly (697) includes: Two guide rails (6971), both of which are fixed in the driving column (696); Two adjusting blocks (6972), symmetrically and slidably arranged on the two guide rails (6971); A return spring (6973), one end of which is connected to the adjusting block (6972) and the other end is connected inside the driving column (696); An adjusting wheel (6974), rotatably arranged on one side where the two adjusting blocks (6972) are close to each other and in contact with the adjusting groove on the adjusting rod (6956); An adjusting plate (6975), fixed on the adjusting block (6972).

7. A multi-axis linkage secondary battery winding machine according to claim 5, characterized in that: The clamping assembly (698) includes: A fixed block (6981), fixed inside the driving column (696); A clamping block (6982), slidably arranged on the fixed block (6981) by a guide rail slider, and a tension spring (6990) is arranged between the clamping block (6982) and the fixed block (6981); A fixed clamping plate (6983), fixed on the fixed block (6981); A sliding clamping plate (6984), fixed on the clamping block (6982); A leveling plate (6985), slidably arranged on the driving column (696).

8. A multi-axis linkage secondary battery winding machine according to claim 7, characterized in that: An opening and closing wheel (6989) is rotatably arranged on one side of the clamping block (6982) close to the fixed block (6981). The opening and closing wheel (6989) is in contact with the clamping groove of the clamping rod (6957). A fixed rack (6988) is fixed on the clamping block (6982). A sliding rack (6986) is fixed on the leveling plate (6985). The sliding rack (6986) is slidably connected to the driving column (696). A gear (6987) is meshed between the fixed rack (6988) and the sliding rack (6986). The gear (6987) is rotatably arranged inside the driving column (696).

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