Battery cell width winding machine

Abstract

The invention discloses a battery cell width winding machine, and relates to the technical field of battery cell winding, the battery cell width winding machine comprises an inner rotating tower, and the inner rotating tower comprises a driving part, a switching gear ring, a limiting ring and three groups of first winding needle parts; the outer rotating tower comprises a clamping plate, an avoiding groove, a connecting rod, a hinge column and three groups of second winding needle pieces; and the multiple groups of winding needles comprise a first winding needle and a second winding needle. The winding needle structure has the beneficial effects that equipment can flexibly adapt to production of battery cells of various specifications, the wide use standard is met, and the overall mechanical property of the winding needle structure is remarkably enhanced through cross use of the first winding needle and the second winding needle. The cross winding needle layout effectively disperses the stress in the winding process, prevents the bending or deformation possibly caused by overlarge pressure borne by a single winding needle, and ensures the high standard normalization of the battery cell production and the integrity of the battery cell structure. And the ejector block and the inclined block are arranged, so that collision of needles is ingeniously avoided, and the winding needle is prevented from being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of battery core winding, in particular to a wide-width battery core winding machine. Background Art

[0002] In the current field of battery cell winding technology, the existing winding mechanism can only be applied to battery cells with smaller winding widths. However, increasing the length of the winding needle to accommodate battery cells with larger widths will face a series of technical challenges. The main problem is that as the length of the winding needle increases, its material strength may not be sufficient to support its own weight, causing the winding needle to bend during the winding process, which not only affects the winding quality of the battery cell, but may also cause the final product to fail to meet quality standards. In addition, the existing mechanism also has the risk of needle collision during the needle removal process, which may not only damage the winding needle, but also threaten the stability and safety of the entire winding process. Therefore, there is an urgent need for a winding mechanism that can adapt to battery cells of different widths and has high stability to improve the efficiency and quality of battery cell production. Summary of the invention

[0003] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0004] Therefore, an object of the present invention is to provide a wide-width battery cell winding machine, which can solve the problem that traditional winding mechanisms cannot adapt to the winding of wide-width battery cells.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a wide-width winding machine for a battery cell, comprising an inner turret, including a driving member, a switching gear ring arranged on one side of the driving member, a limiting ring fixedly clamped on the outer side of the switching gear ring, and three sets of first winding needle members fixedly clamped on the circumferential side of the limiting ring; The outer turret comprises a clamping plate, a avoidance groove arranged on the inner side of the clamping plate, a connecting rod arranged on one side of the clamping plate, a hinge column arranged on one side of the connecting rod, and three sets of second winding needle members arranged in an array around the inner side of the avoidance groove; A plurality of winding needle groups, including a first winding needle group disposed on one side of the inner turret and a second winding needle group disposed on one side of the outer turret; The first winding needle and the second winding needle are located opposite to each other and can be cross-slidably connected.

[0006] As a preferred solution of the wide-width winding machine for battery cells described in the present invention, it also includes a connecting unit, including a connecting piece passing through the inner side of the limiting ring, three groups of first needle outlet assemblies fixedly arranged on the peripheral side of the connecting piece, three groups of second needle outlet assemblies fixedly arranged on the peripheral side of the other end of the connecting piece, and a limiting seat simultaneously arranged on the first needle outlet assembly and the second needle outlet assembly.

[0007] As a preferred solution of the wide-width battery cell winding machine described in the present invention, the connecting part includes a first main shaft arranged at one end of the inner side of the limiting ring, a support shaft arranged on the outside of the first main shaft, an L-shaped limiting block arranged on the outside of the end of the support shaft, and a second main shaft arranged on the outside of the support shaft.

[0008] As a preferred solution of the wide width winding machine for battery cells of the present invention, the first needle assembly comprises a fixed seat arranged on one side of the first main shaft, a rotating member arranged on one side of the fixed seat, a screw rod arranged on one side of the rotating member, and a connecting seat arranged on the screw rod; The connecting seat is fixedly connected to the limiting seat and can drive the first needle rolling member and the second needle rolling member.

[0009] As a preferred solution of the wide-width winding machine for battery cells described in the present invention, the first winding needle member includes a pull plate arranged on one side of the limit seat, a lever sleeve arranged on one side of the pull plate, a push plate arranged on the inner side of the lever sleeve, a slider arranged on the outer side of the lever sleeve, and a closing needle member arranged on one side of the slider.

[0010] As a preferred solution of the wide width winding machine for battery cells of the present invention, the needle closing member comprises a guide block, a needle end rod arranged at the bottom of the guide block, and a deep groove ball bearing arranged at the inner side of the needle end rod; A slope is arranged on one side of the guide block; when the slope cooperates with the deep groove ball bearing, the needle end rod can move vertically.

[0011] As a preferred solution of the wide-width winding machine for battery cells of the present invention, the first winding needle includes a first inner clamping needle, a first long winding needle arranged at the bottom of the first inner clamping needle, and a first gap between the first inner clamping needle and the first long winding needle.

[0012] As a preferred solution of the wide-width winding machine for battery cells of the present invention, the second winding needle includes a second inner clamping needle, a second long winding needle arranged at the bottom of the second inner clamping needle, and a second gap between the second inner clamping needle and the second long winding needle.

[0013] As a preferred solution of the wide width winding machine for battery cells of the present invention, wherein: the first inner clamping needle can be inserted into the second gap; And the second inner clamp needle can also be inserted into the first gap.

[0014] As a preferred solution of the wide width winding machine for battery cells of the present invention, wherein: the ends of the first long winding needle and the second long winding needle are both provided with inclined blocks; And the shaft end of the sliding block is also provided with a top block matched with the inclined block.

[0015] Beneficial effects of the present invention: Through the precise overlapping design of the first winding needle and the second winding needle, precise control of the winding needle spacing during the production process is achieved. Not only can the equipment be flexibly adapted to the production of battery cells of various specifications and meet the wide-width use standards, but also the overall mechanical properties of the winding needle structure are significantly enhanced through the cross-use of the first winding needle and the second winding needle. This cross-winding needle layout effectively disperses the stress during the winding process, prevents bending or deformation that may occur due to excessive pressure on a single winding needle, and ensures the high standard of battery cell production and the integrity of the battery cell structure. As well as in the top block and the bevel block, the collision of the needles is cleverly avoided, thereby preventing damage to the winding needles. This design not only improves the quality of battery cell winding, but also extends the service life of the equipment and reduces downtime during the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the wide-width winding machine for battery cells of the present invention.

[0018] Figure 2 It is a schematic diagram of the inner turret structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the outer turret structure of the present invention.

[0020] Figure 4 for Figure 3 Schematic diagram of the structure of the first needle outlet assembly.

[0021] Figure 5 It is a schematic diagram of the connection relationship between the first needle roll and the second needle roll of the present invention.

[0022] Figure 6 This is a schematic diagram of the first needle roll structure of the present invention.

[0023] Figure 7 For the present invention Figure 6 Schematic diagram of the needle closing structure at A in the middle.

[0024] Figure 8 For the present invention Figure 6 Schematic diagram of the structure of the first winding needle end at B in the middle.

[0025] Fig. 9 It is a schematic diagram of the use of the first winding needle and the second winding needle of the present invention. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1, reference Figure 1 to Figure 9 , which is the first embodiment of the present invention, and provides a wide-width winding machine for a battery cell, comprising an inner turret 100, including a driving member 101, a switching gear ring 102 arranged on one side of the driving member 101, a limiting ring 103 fixedly clamped on the outer side of the switching gear ring 102, and three sets of first winding needle members 104 fixedly clamped on the peripheral side of the limiting ring 103; The outer turret 200 includes a clamping plate 201, an avoidance groove 202 disposed on the inner side of the clamping plate 201, a connecting rod 203 disposed on one side of the clamping plate 201, a hinge column 204 disposed on one side of the connecting rod 203, and three sets of second winding needle members 205 also arrayed around the inner side of the avoidance groove 202; A plurality of winding needles 300, including a first winding needle 301 disposed on one side of the inner turret 100, and a second winding needle 302 disposed on one side of the outer turret 200; The first winding needle 301 and the second winding needle 302 are located opposite to each other and can be cross-slidably connected.

[0030] Furthermore, it also includes a connecting unit 400, including a connecting piece 401 penetrating the inner side of the limiting ring 103, three groups of first needle output assemblies 402 fixedly arranged on the peripheral side of the connecting piece 401, three groups of second needle output assemblies 403 fixedly arranged on the peripheral side of the other end of the connecting piece 401, and a limiting seat Q simultaneously arranged on the first needle output assembly 402 and the second needle output assembly 403.

[0031] Furthermore, the connecting member 401 includes a first main shaft 401a arranged at one end of the inner side of the limiting ring 103, a support shaft 401b arranged outside the first main shaft 401a, an L-shaped limiting block 401c arranged outside the end of the support shaft 401b, and a second main shaft 401d arranged outside the support shaft 401b.

[0032] Furthermore, the first needle-exiting assembly 402 includes a fixed seat 402a disposed on one side of the first main shaft 401a, a rotating member 402b disposed on one side of the fixed seat 402a, a screw rod 402c disposed on one side of the rotating member 402b, and a connecting seat 402d disposed on the screw rod 402c; The connecting seat 402d is fixedly connected to the limiting seat Q, and can drive the first needle roll 104 and the second needle roll 205.

[0033] Furthermore, the first needle winding member 104 includes a pull plate 104a arranged on one side of the limit seat Q, a lever sleeve 104b arranged on one side of the pull plate 104a, a push plate 104c arranged on the inner side of the lever sleeve 104b, a slider 104d arranged on the outer side of the lever sleeve 104b, and a needle closing member 104e arranged on one side of the slider 104d.

[0034] Furthermore, the first winding needle 301 includes a first inner clamping needle 301a, a first long winding needle 301b disposed at the bottom of the first inner clamping needle 301a, and a first gap 301c between the first inner clamping needle 301a and the first long winding needle 301b.

[0035] Furthermore, the second winding needle 302 includes a second inner clamping needle 302a, a second long winding needle 302b disposed at the bottom of the second inner clamping needle 302a, and a second gap 302c between the second inner clamping needle 302a and the second long winding needle 302b.

[0036] Further, the first inner clamp needle 301a can be inserted into the second gap 302c; And the second inner clamp needle 302a can also be inserted into the first gap 301c.

[0037] Furthermore, the ends of the first long winding needle 301b and the second long winding needle 302b are both provided with an inclined block N; The axial end of the slider 104d is also provided with a top block M that matches the inclined block N.

[0038] It should be noted that if Figure 1 and Figure 2As shown, the present turret is composed of an inner turret 100 and an outer turret 200, and the inner turret 100 provides the driving force for the needle winding switch. The driving member 101 is a prior art, which can be a servo motor driving the gear to rotate. A set of switching gear rings 102 are meshed on one side of the gear. The switching gear rings 102 can also rotate when the driving member rotates. The switching gear is also a prior art and will not be described here. In addition, a set of limiting rings 103 are axially limited on the outer side of the switching gear ring 102, and a plurality of equally spaced mounting holes are provided on the inner side of the limiting ring 103. A first needle winding member 104 is limited in each mounting hole, and the mounting hole axially limits the first needle winding member 104. When the switching gear ring 102 rotates, the mounting hole drives the plurality of first needle winding members 104 to rotate and switch. The front end chuck of the first needle winding member 104 clamps the needle winding 300, and the first needle winding 104 can drive the needle winding 300 to rotate and wind the needle.

[0039] Better, such as Figure 1 , Figure 2 and Figure 3 As shown, the inner turret 100 and the outer turret 200 are connected together by a connecting unit 400. The connecting unit 400 includes a connecting member 401 that is arranged at the axis of the limiting ring 103, and the connecting member 401 is composed of a first main shaft 401a installed on one side of the inner turret 100, a supporting shaft 401b connected between the inner turret 100 and the outer turret 200, an L-shaped limiting block 401c installed at the rear end of the supporting shaft 401b, and a second main shaft 401d behind the supporting shaft 401b. The supporting shaft 401b is flange-connected to the first main shaft 401a and the second main shaft 401d. A plurality of first needle outlet assemblies 402 are threadedly connected to the circumference of the first main shaft 401a, and a second needle outlet assembly 403 is also threadedly connected to the circumference of the second main shaft 401d.

[0040] Preferably, Figure 4 As shown, the first needle assembly 402 is composed of a fixed seat 402a threadedly mounted on the circumference of the first main shaft 401a, a rotating member 402b fixedly mounted on the fixed seat 402a, a screw rod 402c at the axis of the rotating member 402b, and a connecting seat 402d at the rear end of the screw rod 402c. The rotating member 402b is a prior art, and can be a servo motor to drive the screw rod 402c to rotate regularly, while the connecting seat 402d can reciprocate on the screw rod 402c. One side of the connecting seat 402d is fixedly connected to a limit seat Q, and the limit seat Q is installed on one side of the first needle winding member 104 and the second needle winding member 205 at the same time.

[0041] In addition, the first needle output assembly 402 and the second needle output assembly 403 have the same structure, and both can drive the limit seat Q through the screw rod 402c to indirectly drive the first needle winding member 104 and the second needle winding member 205 to reciprocate.

[0042] Better, such as Figure 3 As shown, an L-shaped stopper 401c is provided at the end of the support shaft 401b near the outer turret 200, one side of the L-shaped stopper 401c is fixedly connected to the clamping plate 201 through a connecting rod, and the L-shaped stopper 401c is hinged to the support shaft 401b. A group of clamping plates 201 are clamped on the outside of the L-shaped stopper 401c, and an avoidance groove 202 is provided inside the clamping plate 201. The avoidance groove 202 is circular to prevent the movement of the second needle assembly 403 on the circumferential side of the second main shaft 401d from being disturbed.

[0043] Preferably, the number of the second needle output assemblies 403 is the same as the number of the first needle output assemblies 402. The number of the first needle output assemblies 402 is set according to the number of the first needle winding members 104. In this embodiment, three groups of first needle winding members 104 are arranged in a circumferential array.

[0044] Better, such as Figure 5 and Figure 6 As shown, the first needle winding member 104 can be used together with the second needle winding member 205, and the length of the winding needle can be adjusted to produce a battery cell with a larger width. The first needle winding member 104 and the second needle winding member 205 have the same structure, and are both driven by the motor C on one side of the limit seat Q to perform the winding task. The cylinder D pushes the winding needle to close or open the needle.

[0045] Better, such as Figure 5 As shown, the needle winding unit 300 is composed of a first needle winding 301 that is coupled to the first needle winding member 104 and a second needle winding 302 that is coupled to the second needle winding member 205. The first needle winding 301 and the second needle winding 302 have the same structure. Figure 8 As shown, the first winding needle 104 is composed of a first long winding needle 301b that is concave inwardly in an arc shape, a first inner clamping needle 301a that is spaced apart from the first long winding needle 301, and a first gap 301c between the first inner clamping needle 301a and the first long winding needle 301b. The cross section of the first inner clamping needle 301a is ladder-shaped, and the inner side is a larger end face, which can increase the contact area with the material, thereby increasing the friction between the material and the material, and avoiding slipping during winding.

[0046] During use, when the winding needle is taken out and put away, the first needle out assembly 402 on the inner turret 100 side and the second needle out assembly 403 on the outer turret 200 side are fixedly connected to the first main shaft 401a and the second main shaft 401 respectively through the fixed seat 402a, and the first needle out assembly 402 and the second needle out assembly 403 are connected to the winding needle 300 through the connecting seat 402d respectively. After the rotating member 402b is started, under the action of the screw rod 402c, the connecting seat 402d drives the winding needle 300 to move along the support shaft 401b to achieve needle taking out and putting away.

[0047] During this process, the first winding needle 301 of the inner turret 100 and the second winding needle 302 of the outer turret 200 are located opposite to each other, and the first winding needle 301 and the second winding needle 302 are simultaneously withdrawn or simultaneously removed; When the needle is withdrawn, the first winding needle 301 and the second winding needle 302 move toward each other. The first winding needle 301 extends from the inner turret 100, and the first inner clamping needle 301a is inserted into the second gap 302c; in contrast, the second winding needle 302 extends from the outer turret 200, and the second inner clamping needle 302a is inserted into the first gap 301c; When the needles are closed, the first winding needle 301 and the second winding needle 302 move in opposite directions. The first inner clamping needle 301a is withdrawn from the second gap 302c, and the first winding needle 301 is retracted into the inner turret 100; conversely, the second inner clamping needle 302a is withdrawn from the first gap 301c, and the second winding needle 302 is retracted into the outer turret 200.

[0048] Preferably, the first winding needle 301 and the second winding needle 302 can achieve precise overlap when the needle is removed, so that the distance between the two can be flexibly adjusted according to the wide-width use standard, thereby adapting to the production requirements of battery cells of different specifications. In addition, the cross-use of the first winding needle 301 and the second winding needle 302 further optimizes the mechanical properties of the winding needle and effectively improves the strength and stability during the winding process. This cross-winding needle design disperses stress and avoids bending or deformation caused by excessive force on a single winding needle, thereby ensuring the standardization of battery cell production and the integrity of the battery cell structure. Improve the winding quality of the battery cell.

[0049] In addition, an inclined block N is provided at the end of the first long winding needle 301b and the second long winding needle 302b, and a top block M is also provided on the first winding needle member 104 and the second winding needle 302. The top block M has an inclined surface on one side corresponding to the inclined block N. After the first long winding needle 301b and the second long winding needle 302b overlap at the same time, the inclined block N serves as a pathfinder. When the inclined block N at the front end of the first long winding needle 301b contacts the top block M at the front end of the second winding needle member 205, the top block M lifts the inclined block N away to avoid the occurrence of needle collision and prevent the winding needle from being damaged.

[0050] In summary, the battery cell winding device of the present invention realizes precise control of the spacing between winding needles during the production process through the precise overlapping design of the first winding needle 301 and the second winding needle 302. Not only can the equipment be flexibly adapted to the production of battery cells of various specifications and meet the wide-width use standards, but also the overall mechanical properties of the winding needle structure are significantly enhanced through the cross-use of the first winding needle 301 and the second winding needle 302. This cross-winding needle layout effectively disperses the stress during the winding process, prevents bending or deformation that may occur due to excessive pressure on a single winding needle, and ensures the high standard of battery cell production and the integrity of the battery cell structure. And in the top block M and the bevel block N, the collision of the needles is cleverly avoided, thereby preventing damage to the winding needles. This design not only improves the quality of battery cell winding, but also extends the service life of the equipment and reduces downtime during the production process.

[0051] Example 2, reference Figure 1 to Figure 9 , which is the second embodiment of the present invention, and is different from the first embodiment in that it also includes a first needle winding member 104 including a pull plate 104a arranged on one side of the limit seat Q, a lever sleeve 104b arranged on one side of the pull plate 104a, a push plate 104c arranged on the inner side of the lever sleeve 104b, a slider 104d arranged on the outer side of the lever sleeve 104b, and a needle closing member 104e arranged on one side of the slider 104d.

[0052] Further, the needle closing member 104e includes a guide block 104e-1, a needle end rod 104e-2 disposed at the bottom of the guide block 104e-1, and a deep groove ball bearing 104e-3 disposed inside the needle end rod 104e-2; A slope 104e-11 is provided on one side of the guide block 104e-1; when the slope 104e-11 cooperates with the deep groove ball bearing 104e-3, the needle end rod 104e-2 can move vertically.

[0053] It should be noted that if Figure 5 and Figure 6 As shown, the first needle winding member 104 and the second needle winding member 205 have the same structure, and are both driven by the motor C on one side of the limit seat Q to perform the winding task. The cylinder D pushes the winding needle 300 to close or open the needle.

[0054] A lever sleeve 104b is fixedly connected to the push rod at the front end of the cylinder D. The lever sleeve 104b is composed of a cylinder with larger diameters at both ends and a cylinder with a smaller diameter in the middle. A push plate 104c is clamped on the inner side of the cylinder with a smaller diameter in the middle. The push plate 104c is elliptical, and its two ends are clamped on the inner side of the lever sleeve 104b on both sides. When the cylinders D on both sides are started, the lever sleeve 104b will drive the inner push plate 104c to move backward. During the backward movement, the push plate 104c will drive the needle closing member 104e to close or open the winding needle 300. A group of guide blocks 104e-1 are fixedly connected to the front end of the push plate 104c, and the bottom of the guide block 104e-1 is the needle end rod 104e-2. There is a gap with a certain angle between the guide block 104e-1 and the needle end rod 104e-2, a groove is provided on the rod body of the needle end rod 104e-2, a deep groove ball bearing 104e-3 is arranged in the groove, and an inclined surface 104e-11 with a certain angle is provided on the guide block 104e-1 above the deep groove ball bearing 104e-3.

[0055] Usage process: Cylinder D pushes the lever sleeve 104b to move horizontally backward, thereby driving the push plate 104c, thereby driving the guide block 104e-1 to move horizontally backward, and the guide block 104e-1 faces the inclined surface 104e-11 on one side of the needle end rod 104e-2 at the bottom of the winding needle 300, and the deep groove ball bearing 104e-3 on the inner side of the needle end rod 104e-2. With the cooperation of the inclined surface 104e-11 and the deep groove ball bearing 104e-3, the needle end rod 104e-2 moves vertically, and the needle end rod 104e-2 simultaneously drives the first long winding needle 301b / the second long winding needle 302b, and the first inner clamping needle 301a / the second inner clamping needle 302a to move radially.

[0056] When the winding needle 300 is closed, the first winding needle 301 and the second winding needle 302 are axially opposite, but the first inner clamping needle 301a / the second inner clamping needle 302a and the first long winding needle 301b / the second long winding needle 302b are in opposite radial directions. Therefore, when the winding needle 300 moves backward and closes under the drive of the cylinder D, the first inner clamping needle 301a and the second inner clamping needle 302a move radially toward each other, the first inner clamping needle 301a and the second inner clamping needle 302a retract inward until the material is clamped, the first inner clamping needle 301a and the second inner clamping needle 302a move in opposite directions, and the first inner clamping needle 301a and the second inner clamping needle 302a expand outward.

[0057] When the winding needle 300 is opened, the first inner clamping needle 301a and the second inner clamping needle 302a move radially in opposite directions, and the first inner clamping needle 301a and the second inner clamping needle 302a loosen the material. The first long winding needle 301 and the second long winding needle 302 move toward each other, that is, the first long winding needle 301b and the second long winding needle 301b retract inwards, and after the pressure between the first long winding needle 301b and the second long winding needle 301b and the material is lost, the friction force also disappears, making it easy to remove the wound battery cell from the winding needle.

[0058] In summary, the device realizes the rapid closing and opening of the winding needles on both sides through the setting of the closing needle member 104e, thereby efficiently clamping and releasing the material. This design significantly improves the clamping ability of the winding needle on the material, effectively avoids the risk of needle collision that may occur during the loading process, ensures the stability and safety of the battery cell winding process, improves the quality and consistency of the battery cell winding, reduces the generation of defective products in the production process, and thus improves the overall production efficiency and product quality.

[0059] It is important to note that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A wide width winding machine for battery cells, characterized in that: include, The inner turret (100) comprises a driving member (101), a switching toothed ring (102) arranged on one side of the driving member (101), a limiting ring (103) fixedly clamped on the outside of the switching toothed ring (102), and three sets of first winding needle members (104) fixedly clamped on the circumference of the limiting ring (103); The outer turret (200) comprises a clamping plate (201), an avoidance groove (202) arranged on the inner side of the clamping plate (201), a connecting rod (203) arranged on one side of the clamping plate (201), a hinge column (204) arranged on one side of the connecting rod (203), and three groups of second needle winding members (205) arranged in an array around the inner side of the avoidance groove (202); A plurality of groups of winding needles (300), comprising a first winding needle (301) arranged on one side of the inner turret (100), and a second winding needle (302) arranged on one side of the outer turret (200); The first winding needle (301) and the second winding needle (302) are located opposite to each other and can be cross-slidably connected.

2. The wide width winding machine for battery cells according to claim 1, characterized in that: It also includes a connecting unit (400), including a connecting piece (401) penetrating the inner side of the limiting ring (103), three groups of first needle outlet assemblies (402) fixedly arranged on the peripheral side of the connecting piece (401), three groups of second needle outlet assemblies (403) fixedly arranged on the peripheral side of the other end of the connecting piece (401), and a limiting seat (Q) simultaneously arranged on the first needle outlet assembly (402) and the second needle outlet assembly (403).

3. The wide width winding machine for battery cores according to claim 2, characterized in that: The connecting member (401) comprises a first main shaft (401a) arranged at one end inside the limiting ring (103), a supporting shaft (401b) arranged outside the first main shaft (401a), an L-shaped limiting block (401c) arranged outside the end of the supporting shaft (401b), and a second main shaft (401d) arranged outside the supporting shaft (401b).

4. The wide width winding machine for battery cells according to claim 3, characterized in that: The first needle removal assembly (402) comprises a fixed seat (402a) arranged on one side of the first main shaft (401a), a rotating member (402b) arranged on one side of the fixed seat (402a), a screw rod (402c) arranged on one side of the rotating member (402b), and a connecting seat (402d) arranged on the screw rod (402c); The connecting seat (402d) is fixedly connected to the limiting seat (Q), and can drive the first needle rolling member (104) and the second needle rolling member (205).

5. The wide width winding machine for battery cells according to claim 4, characterized in that: The first needle winding member (104) comprises a pull plate (104a) arranged on one side of the limit seat (Q), a lever sleeve (104b) arranged on one side of the pull plate (104a), a push plate (104c) arranged on the inner side of the lever sleeve (104b), a slider (104d) arranged on the outer side of the lever sleeve (104b), and a needle closing member (104e) arranged on one side of the slider (104d).

6. The wide width winding machine for battery cells according to claim 5, characterized in that: The needle closing member (104e) comprises a guide block (104e-1), a needle end rod (104e-2) arranged at the bottom of the guide block (104e-1), and a deep groove ball bearing (104e-3) arranged on the inner side of the needle end rod (104e-2); A slope (104e-11) is provided on one side of the guide block (104e-1); when the slope (104e-11) cooperates with the deep groove ball bearing (104e-3), the needle end rod (104e-2) can move vertically.

7. The wide width winding machine for battery cells according to claim 6, characterized in that: The first winding needle (301) comprises a first inner clamping needle (301a), a first long winding needle (301b) arranged at the bottom of the first inner clamping needle (301a), and a first gap (301c) between the first inner clamping needle (301a) and the first long winding needle (301b).

8. The wide width winding machine for battery cells according to claim 7, characterized in that: The second winding needle (302) comprises a second inner clamping needle (302a), a second long winding needle (302b) arranged at the bottom of the second inner clamping needle (302a), and a second gap (302c) between the second inner clamping needle (302a) and the second long winding needle (302b).

9. The wide width winding machine for battery cells according to claim 8, characterized in that: The first inner clamping needle (301a) can be inserted into the second gap (302c); Furthermore, the second inner clamping needle (302a) can also be inserted into the first gap (301c).

10. The wide width winding machine for battery cells according to claim 9, characterized in that: The ends of the first long winding needle (301b) and the second long winding needle (302b) are both provided with an inclined block (N); Furthermore, the axial end of the sliding block (104d) is also provided with a top block (M) that matches the inclined block (N).

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