Winding device

Abstract

The utility model relates to the technical field of winding equipment, in particular to winding equipment. Winding equipment comprises a winding needle, the winding needle comprises a winding needle base, a first half needle assembly and a second half needle assembly, the winding needle base is rotatably arranged, the first half needle assembly and the second half needle assembly are both arranged on the winding needle base and are opposite in the first direction, and the first half needle assembly comprises a first inner clamping needle and a first outer winding needle; the second half needle assembly comprises a second inner clamping needle and a second outer winding needle; at least one of the material pushing assembly, the first inner clamping needle and the second inner clamping needle can move in the direction away from the other one in the first direction so that a gap can be formed between the clamping face of the first inner clamping needle and the clamping face of the second inner clamping needle, and the material pushing assembly is used for moving into the groove in the direction close to the groove in the second direction so as to push the material belt to enter the gap. According to the winding equipment provided by the invention, the processing efficiency of the winding core can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of winding equipment, and in particular to a winding equipment. Background Art

[0002] The winding equipment is a device used to process the core of the battery. The winding equipment usually includes a winding needle, which is provided with a slit with an opening. When the core is processed by the winding equipment, the needle insertion action must be completed first (the diaphragm, etc. must be inserted into the slit of the winding needle), and then the core is wound up.

[0003] In the related art, in order to complete the needle insertion action, before the needle insertion action, it is necessary to ensure that the winding needle is retracted. When the needle insertion action is performed, the winding needle needs to be extended along the axial direction of the winding needle so that the positive and negative electrode sheets and the diaphragm can just pass through the opening and enter the gap of the winding needle, and then the winding core can be rolled up. However, this needle insertion method has many auxiliary actions (such as the winding needle retracting in the winding needle seat and extending from the winding needle seat), which makes the winding equipment less efficient in processing the winding core. Utility Model Content

[0004] The present application discloses a winding device, which can improve the processing efficiency of winding cores.

[0005] In order to achieve the above object, the present application discloses a winding device, comprising:

[0006] A winding needle, the winding needle comprising a winding needle seat, a first half needle assembly and a second half needle assembly, the winding needle seat is rotatably arranged, the first half needle assembly and the second half needle assembly are both arranged on the winding needle seat and are opposite to each other along a first direction, the first half needle assembly comprises a first inner clamping needle and a first outer winding needle, the second half needle assembly comprises a second inner clamping needle and a second outer winding needle, a clamping surface of the first inner clamping needle and / or a clamping surface of the second inner clamping needle is provided with a groove, and the first outer winding needle and the second outer winding needle jointly form a winding peripheral wall;

[0007] A material pushing assembly, at least one of the first inner clamping needle and the second inner clamping needle can be moved along the first direction in a direction away from the other so that a gap is formed between the clamping surface of the first inner clamping needle and the clamping surface of the second inner clamping needle, the material pushing assembly is used to move along the second direction in a direction close to the groove to push the material tape into the gap, the groove can accommodate the material pushing assembly, at least one of the first inner clamping needle and the second inner clamping needle can also be moved along the first direction in a direction close to the other so as to clamp the material tape through the clamping surface, and the winding needle seat is used to drive the first outer winding needle and the second outer winding needle to rotate together so as to wind the material tape exposed in the gap around the winding wall.

[0008] Optionally, the winding device also includes a turntable, which is rotatably arranged around its own axis, and the winding needle seat is rotatably arranged on the turntable around the axis of the winding wall, the axis of the winding wall deviates from the axis of the turntable, and at least one workstation is arranged around the turntable, at least one of the workstations includes a winding station, and the winding station is located on the orbital trajectory of the winding needle, and the pushing assembly is used for pushing the material strip into the gap when the winding needle rotates to the winding station, wherein the orbital trajectory of the winding needle refers to the trajectory of the turntable driving the winding needle to rotate.

[0009] Optionally, there are multiple winding needles, and the multiple winding needles are arranged on the turntable at intervals along the circumference of the turntable.

[0010] Optionally, the plurality of workstations further include a gluing workstation and a material unloading workstation, and the winding workstation, the gluing workstation and the material unloading workstation are sequentially arranged along the circumference of the turntable.

[0011] Optionally, the winding device further comprises:

[0012] The cutting piece is used to cut the material strip to form a free end, and the pushing assembly is used to push the free end into the gap.

[0013] Optionally, a cutter avoidance groove is provided on one of the first outer curling needle and the second outer curling needle, and the cutter avoidance groove is located on the moving track of the cutting member.

[0014] Optionally, the pusher assembly comprises:

[0015] Driving parts;

[0016] A mounting seat connected to the driving member;

[0017] The pushing member and the cutting member are both arranged on the mounting seat, and the driving member is used to drive the mounting seat to move along the second direction toward the direction close to the winding needle, so as to drive the cutting member to cut the material strip to form the free end, and the pushing member pushes the free end into the gap.

[0018] Optionally, there are multiple grooves, and the multiple grooves are arranged at axial intervals along the winding circumferential wall. The pushing member includes a main body and multiple insertion parts corresponding to the multiple grooves one by one. The main body is arranged on the mounting seat, and the multiple insertion parts are arranged on the main body at axial intervals along the winding circumferential wall. The driving member is used to drive the mounting seat to move along the second direction toward the direction close to the winding needle, and drive each of the insertion parts to push the free end into the gap along the second direction, and each of the grooves can accommodate the corresponding insertion part.

[0019] Optionally, the winding device further comprises: a material strip guiding assembly, wherein the material strip guiding assembly:

[0020] a first pressing roller assembly; and,

[0021] A second pressing roller assembly, the second pressing roller assembly and the first pressing roller assembly are located on both sides of the cutting piece along the conveying direction of the material strip, the first pressing roller assembly includes a first fixed roller and a first pressing roller, the second pressing roller assembly includes a second fixed roller and a second pressing roller, the first pressing roller is used to move in a direction close to the first fixed roller to clamp the material strip between the first pressing roller and the first fixed roller, and the second pressing roller is used to move in a direction close to the second fixed roller to clamp the material strip between the second pressing roller and the second fixed roller.

[0022] Optionally, the first pressing roller abuts against the first fixed roller to form a first tangent line, the second pressing roller abuts against the second fixed roller to form a second tangent line, the plane where the first tangent line and the second tangent line are located together is a common tangent plane, and the common tangent plane is perpendicular to the second direction.

[0023] Optionally, the first pressure roller assembly further includes a first pressure roller driving member and a first elastic member, the first pressure roller driving member is connected to the first pressure roller via the first elastic member, the first pressure roller driving member is used to drive the first pressure roller to move in a direction close to the first fixed roller, and the elastic force direction of the first elastic member is parallel to the movement direction of the first pressure roller; and / or, the second pressure roller assembly further includes a second pressure roller driving member and a second elastic member, the second pressure roller driving member is connected to the second pressure roller via the second elastic member, the second pressure roller driving member is used to drive the second pressure roller to move in a direction close to the second fixed roller, and the elastic force direction of the second elastic member is parallel to the movement direction of the second pressure roller.

[0024] Compared with the prior art, the beneficial effects of this application are:

[0025] In the present application, the function of clamping the material strip can be achieved by moving at least one of the first inner clamping needle and the second inner clamping needle along the first direction toward the other. After the material strip is clamped, the winding needle can be rotated around the axis of the winding wall to complete the winding action, thereby achieving the purpose of winding the material strip on the winding wall of the winding needle. In this process, the first inner clamping needle and the second inner clamping needle of the winding needle can be fully utilized to complete the action of clamping the material strip, thereby reducing the cost of the winding needle.

[0026] In addition, by providing a groove on the clamping surface of the first inner clamping needle and / or the clamping surface of the second inner clamping needle, when the material strip needs to enter the gap to complete the pin insertion action, it is only necessary to move the pushing assembly in the direction close to the groove to synchronously push the material strip into the gap, thereby realizing the pin insertion action. During the whole process, the winding needle does not need to extend and retract back and forth along the axial direction of the winding peripheral wall so that the material strip can enter the gap to complete the pin insertion action. Therefore, the efficiency of pin insertion can be improved to a certain extent, thereby improving the efficiency of making the winding core.

[0027] In addition, by providing a groove on the clamping surface of the first inner clamping needle and / or the clamping surface of the second inner clamping needle, when the clamping surface of the first inner clamping needle and the clamping surface of the second inner clamping needle are close to each other to clamp the material strip, the pushing assembly can be located in the groove to avoid the clamping surface and always support the material strip. After the material strip is stably clamped between the clamping surface of the first inner clamping needle and the clamping surface of the second inner clamping needle, the pushing assembly will withdraw from the groove. In this way, under the pushing action of the pushing assembly, it can be avoided that the material strip abnormally slips out of the gap before being clamped by the clamping surface of the first inner clamping needle and the clamping surface of the second inner clamping needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of a winding device provided in one embodiment of the present application;

[0030] Figure 2 yes Figure 1 A schematic diagram of the structure of the winding needle in FIG.

[0031] Figure 3 yes Figure 2 A schematic diagram of the structure of the winding needle along the positive viewing angle of the Y axis;

[0032] Figure 4 yes Figure 1 A schematic diagram of the structure of the winding device when the material strip has not been cut;

[0033] Figure 5 yes Figure 4 A schematic diagram of the structure of the winding device when the material strip is just cut;

[0034] Figure 6 yes Figure 1 A schematic diagram of the structure of the winding device when the pusher assembly withdraws from the groove;

[0035] Figure 7 yes Figure 6 A schematic diagram of the structure of the winding device when the winding needle is winding the winding core at the winding station;

[0036] Figure 8 yes Figure 1 A schematic diagram of the structure of the pusher assembly;

[0037] Fig. 9 yes Figure 8 A schematic diagram of the structure of the pusher in the negative direction of the Z axis;

[0038] Fig.10 yes Figure 4 Schematic diagram of the structure of the first pressure roller assembly.

[0039] Description of main reference numerals

[0040] 1-winding needle; 11-winding needle seat; 12-first half needle assembly; 121-first inner clamping needle; 1210-clamping surface; 12101-groove; 12102-gap; 122-first outer winding needle; 1220-winding peripheral wall; 13-second half needle assembly; 131-second inner clamping needle; 132-second outer winding needle; 14-cutter avoidance groove;

[0041] 2-push assembly; 21-driving member; 22-mounting seat; 221-guide rod; 23-pushing member; 231-body; 232-insertion part; 24-guide seat;

[0042] 3-turntable; 31-winding station; 32-gluing station; 33-unloading station;

[0043] 4-cutting pieces;

[0044] 5-material belt guide assembly; 51-first pressure roller assembly; 511-first fixed roller; 512-first pressure roller; 513-first pressure roller driving member; 514-first elastic member; 52-second pressure roller assembly; 521-second fixed roller; 522-second pressure roller;

[0045] 100- Winding equipment;

[0046] L-material strip; L1-free end; Q1-first tangent line; Q2-second tangent line; S-common section surface. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0049] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0050] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0052] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings.

[0053] Figure 1 is a schematic structural diagram of a winding device 100 provided in an embodiment of the present application. Figure 2 yes Figure 1 The structural diagram of the winding needle 1 in FIG. Figure 3 yes Figure 2 Schematic diagram of the structure of the winding needle 1 along the positive viewing angle of the Y axis.

[0054] See also Figure 1 , Figure 2 and Figure 3 The winding device 100 includes: a winding needle 1 and a pushing assembly 2, wherein the winding needle 1 includes a winding needle seat 11, a first half needle assembly 12 and a second half needle assembly 13, the winding needle seat 11 is rotatably arranged, the first half needle assembly 12 and the second half needle assembly 13 are both arranged on the winding needle seat 11 and along the first direction ( Figure 2 The first half needle assembly 12 comprises a first inner clamping needle 121 and a first outer winding needle 122, and the second half needle assembly 13 comprises a second inner clamping needle 131 and a second outer winding needle 132. A groove 12101 is provided on the clamping surface 1210 of the first inner clamping needle 121 and / or the clamping surface 1210 of the second inner clamping needle 131. The first outer winding needle 122 and the second outer winding needle 132 jointly form a winding peripheral wall 1220. At least one of the first inner clamping needle 121 and the second inner clamping needle 131 can be moved in a direction away from the other along the first direction so that a gap 12102 is formed between the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131. The pushing assembly 2 is used to push the material along the second direction ( Figure 1 The first inner clamping needle 121 and the second inner clamping needle 131 can also move along the first direction toward the direction close to the other one to clamp the material strip L through the clamping surface 1210. The winding needle seat 11 is used to drive the first outer winding needle 122 and the second outer winding needle 132 to rotate together to wind the material strip L exposed in the gap 12102 around the winding peripheral wall 1220.

[0055] In this embodiment, when the winding core is made by the winding device 100, since at least one of the first inner clamping needle 121 and the second inner clamping needle 131 can be moved along the first direction away from or close to the other, first, at least one of the first inner clamping needle 121 and the second inner clamping needle 131 can be moved along the first direction away from the other, so that the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131 are away from each other to form a gap 12102, and then, since the clamping surface 1210 of the first inner clamping needle 121 and / or the clamping surface 1210 of the second inner clamping needle 131 are provided with a groove 12101, the pushing component 2 can push the material strip L along the second direction toward the direction close to the groove 12101. During the process of the pushing component 2 moving toward the direction close to the groove 12101, the pushing component 2 can synchronously push the material strip L to move toward the direction close to the gap 12102.

[0056] After the pushing assembly 2 pushes the material strip L into the gap 12102, at least one of the first inner clamping needle 121 and the second inner clamping needle 131 can be moved along the first direction toward the other, thereby making the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131 approach each other to clamp the material strip L. When the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131 are close to each other to clamp the material strip L, since the pushing assembly 2 can be located in the groove 12101, the pushing assembly 2 will not interfere with the movement of the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131 approaching each other to clamp the material strip L, thereby ensuring that the material strip L can be stably clamped between the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131.

[0057] After the material strip L is stably clamped between the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131, the material pushing component 2 can be moved in the opposite direction of the second direction ( Figure 1 The first outer winding needle 122 and the second outer winding needle 132 can rotate around the axis of the winding wall 1220. During the rotation of the winding needle seat 11, the material strip L can be wound on the winding wall 1220 of the winding needle 1, thereby achieving the purpose of making a winding core.

[0058] Among them, since the function of clamping the material strip L can be achieved by moving at least one of the first inner clamping needle 121 and the second inner clamping needle 131 along the first direction toward the other, after the material strip L is clamped, the winding needle 1 can be rotated around the axis of the winding wall 1220 to complete the winding action, and then the material strip L can be wound on the winding wall 1220 of the winding needle 1. In this process, the first inner clamping needle 121 and the second inner clamping needle 131 of the winding needle 1 can be fully utilized to complete the action of clamping the material strip L, thereby reducing the cost of the winding needle 1.

[0059] In addition, by providing a groove 12101 on the clamping surface 1210 of the first inner clamping needle 121 and / or the clamping surface 1210 of the second inner clamping needle 131, when it is necessary to allow the material strip L to enter the gap 12102 to complete the needle insertion action, it is only necessary to move the pushing assembly 2 in a direction close to the groove 12101, so that the material strip L can be synchronously pushed into the gap 12102, thereby realizing the needle insertion action. During the whole process, the winding needle 1 does not need to extend and retract back and forth along the axial direction of the winding peripheral wall 1220 so that the material strip L can enter the gap 12102 to complete the needle insertion action. Therefore, the efficiency of needle insertion can be improved to a certain extent, thereby improving the efficiency of making the winding core.

[0060] In addition, by providing a groove 12101 on the clamping surface 1210 of the first inner clamping needle 121 and / or the clamping surface 1210 of the second inner clamping needle 131, when the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131 are close to each other to clamp the material strip L, the pushing component 2 can be located in the groove 12101 to avoid the clamping surface 1210 and always support the material strip L. After the material strip L is stably clamped between the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131, the pushing component 2 will withdraw from the groove 12101. In this way, under the pushing action of the pushing component 2, the material strip L can be prevented from abnormally slipping out of the gap 12102 before being clamped by the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131.

[0061] When the winding device 100 is used in a scenario of manufacturing battery cells, the material strips can be understood as positive and negative electrode sheets and separators, etc., and the winding core can be understood as a battery cell.

[0062] It should be noted that, considering that the groove 12101 needs to accommodate the pusher assembly 2, the shape of the groove 12101 can be set to match the shape of the pusher assembly 2. For example, when the shape of the pusher assembly 2 is a rectangular parallelepiped, the shape of the groove 12101 can be a rectangular parallelepiped.

[0063] In some embodiments, see Figure 1 The winding device 100 also includes a turntable 3, which is rotatably arranged around its own axis, and a winding needle seat 11 is rotatably arranged on the turntable 3 around the axis of a winding wall 1220, and the axis of the winding wall 1220 deviates from the axis of the turntable 3. At least one workstation is arranged around the turntable 3, and at least one workstation includes a winding station 31. The winding station 31 is located on the orbital trajectory of the winding needle 1, and the pushing assembly 2 is used for pushing the material strip L into the gap 12102 when the winding needle 1 rotates to the winding station 31, wherein the orbital trajectory of the winding needle 1 refers to the trajectory of the turntable 3 driving the winding needle 1 to rotate.

[0064] Since the winding needle seat 11 is rotatably arranged on the turntable 3 around the axis of the winding wall 1220, and the turntable 3 is rotatably arranged around its own axis, when the turntable 3 starts to rotate around its own axis, it can synchronously drive the winding needle seat 11 arranged on the turntable 3 to start rotating around the axis of the turntable 3, and then drive the entire winding needle 1 to start orbiting around the axis of the turntable 3. When the winding needle 1 starts to revolve around the axis of the turntable 3, since the winding station 31 is located on the orbital trajectory of the winding needle 1, the winding needle 1 will be able to follow the turntable 3 to rotate to the winding station 31. After the winding needle 1 reaches the winding station 31, the pushing assembly 2 can push the material strip L into the gap 12102.

[0065] With such a configuration, on the one hand, even if the winding needle 1 is not at the winding station 31 at the beginning due to working conditions or other reasons, the winding needle 1 located at other positions can be rotated to the winding station 31 under the rotation of the turntable 3, so that the pushing component 2 can push the material strip L into the gap 12102, which provides convenience for the winding needle 1 to wind the core, and the structural design is very clever. On the other hand, since the material strip L needs to be pushed into the gap 12102 only when the winding needle 1 rotates to the winding station 31, the pushing component 2 can be set near the winding station 31 to wait for the arrival of the winding needle 1. Compared with the method in which the pushing component 2 needs to push the material strip L into the gap 12102 at different positions, the structural complexity of the pushing component 2 can be reduced, and the cost of the pushing component 2 can be reduced.

[0066] In some embodiments, see Figure 1 There are multiple winding needles 1, and the multiple winding needles 1 are arranged on the turntable 3 at intervals along the circumference of the turntable 3.

[0067] By making the number of winding needles 1 multiple and arranging the multiple winding needles 1 on the turntable 3 at circumferential intervals, by rotating the turntable 3, any one of the multiple winding needles 1 can be rotated to the winding station 31 for the pushing component 2 to push the material strip L into the gap 12102 for winding the core. One pushing component 2 can correspond to multiple winding needles 1. Therefore, the number of pushing components 2 can be saved and the cost of the entire winding device 100 can be reduced. On the other hand, since the multiple winding needles 1 can respectively perform the work of winding the core, the efficiency of core production can be improved to a certain extent.

[0068] It should be noted that the number of the winding needles 1 can be as follows: Figure 1 The three shown are, of course, other numbers are also possible and this embodiment does not limit this.

[0069] In some embodiments, there are multiple workstations, and the multiple workstations correspond one-to-one to the number of the multiple winding needles 1.

[0070] By making the multiple workstations correspond to the multiple winding needles 1 in number one by one, any one of the multiple winding needles 1 can perform the corresponding process at each workstation when it rotates to that workstation. The multiple winding needles 1 can perform multiple processes at multiple workstations at the same time. Therefore, the efficiency of making the winding core can be further improved.

[0071] See also Figure 1The above-mentioned multiple workstations can specifically include three workstations, namely a winding station 31, a gluing station 32 and a blanking station 33. When the multiple workstations include three workstations, namely a winding station 31, a gluing station 32 and a blanking station 33, the number of the winding needles 1 can be set to three. In this way, the winding process, the gluing process and the blanking process can be carried out at different workstations at the same time, so that the winding device 100 is more efficient in winding the core.

[0072] When the above-mentioned multiple stations specifically include three stations, namely, the winding station 31, the gluing station 32 and the unloading station 33, see Figure 1 The winding station 31 , the gluing station 32 and the unloading station 33 are arranged in sequence along the circumference of the turntable 3 .

[0073] Since the winding station 31, the gluing station 32 and the unloading station 33 are arranged in sequence along the circumference of the turntable 3, after the winding needle 1 completes the process of winding the core at the winding station 31, the turntable 3 can drive the winding needle 1 to rotate to the gluing station 32. When the winding needle 1 arrives at the gluing station 32, the gluing process can be completed on the core on the winding needle 1 at the gluing station 32. After the gluing process is completed, the turntable 3 can continue to drive the winding needle 1 to rotate to the unloading station 33. When the winding needle 1 arrives at the unloading station 33, the core can be removed from the winding needle 1 at the unloading station 33 to complete the unloading process, so that the winding needle 1 becomes an empty winding needle 1.

[0074] After the winding needle 1 becomes an empty winding needle 1, as the turntable 3 continues to rotate, the empty winding needle 1 can be rotated to the winding station 31. When the empty winding needle 1 rotates to the winding station 31, the process of winding the winding core can be continued on the empty winding needle 1.

[0075] It can be seen that by arranging the winding station 31, the gluing station 32 and the unloading station 33 in sequence along the circumference of the turntable 3, the arrangement order of the winding station 31, the gluing station 32 and the unloading station 33 can be exactly matched with the order of the processing steps of the core, thereby further improving the processing efficiency of the core.

[0076] Specifically, the processing steps of the winding core will be described in more detail below with reference to the accompanying drawings.

[0077] See also Figure 4 , Figure 4 yes Figure 1 The winding device 100 in FIG. 1 is a schematic diagram of the structure when the material strip L has not been cut. First, the turntable 3 can drive the winding needle 1 to rotate counterclockwise, so that the winding needle 1 rotates from the unloading station 33 to the winding station 31. Then, see Figure 5 , Figure 5 yes Figure 4The winding device 100 is a schematic diagram of the structure when the material strip L is just cut. The material strip L can be cut by the cutting member 4 to form a free end L1, and then, see Figure 1 , the pusher assembly 2 can move along the second direction ( Figure 1 The free end L1 of the material strip L is pushed in the positive direction of the center Y axis) into the gap 12102 formed between the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131. At the same time, the winding needle 1 located at the gluing station 32 can rotate around the axis of its own winding wall 1220 to wind the material strip L located downstream of the cutting piece 4 after being cut off onto the winding wall 1220 located at the winding needle 1, so as to carry out gluing at the gluing station 32.

[0078] In order to prevent the cutting element 4 from colliding with the winding needle 1 during the process of cutting the material strip L, in some embodiments, see Figure 3 and Figure 4 A cutter avoidance groove 14 is provided on one of the first outer winding needle 122 and the second outer winding needle 132 , and the cutter avoidance groove 14 is located on the moving track of the cutting member 4 .

[0079] By providing the cutter avoidance groove 14 , when the material strip is cut by the cutting piece 4 , it can be avoided that the cutting piece 4 directly collides with the first outer winding needle 122 or the second outer winding needle 132 , thereby causing the cutting piece 4 to be damaged.

[0080] After the free end L1 of the strip L enters the gap 12102, see Figure 6 , Figure 6 yes Figure 1 The winding device 100 in FIG. 1 is a schematic diagram of a structure when the pusher assembly 2 withdraws from the groove 12101. At least one of the first inner clamping needle 121 and the second inner clamping needle 131 can be moved along the first direction ( Figure 6 The push assembly 2 can move in the direction closer to the other one (in the middle Z-axis direction) to clamp the material strip L together through the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131. After the clamping surface 1210 of the first inner clamping needle 121 and the clamping surface 1210 of the second inner clamping needle 131 clamp the material strip L, the push assembly 2 can move in the opposite direction of the second direction ( Figure 6 The negative direction of the Y axis) exits the groove 12101, and finally, see Figure 7 , Figure 7 yes Figure 6 The winding device 100 is a structural schematic diagram when the winding needle 1 is winding the core at the winding station 31. The winding needle 1 located at the winding station 31 can rotate around the axis of its own winding peripheral wall 1220 to wind the material strip L on the winding peripheral wall 1220 of the winding needle 1 to form a core.

[0081] In some embodiments, see Figure 1 and Figure 8 , Figure 8 yes Figure 1 The pusher assembly 2 in FIG. 2 includes a driving member 21, a mounting seat 22, and a pushing member 23, wherein the mounting seat 22 is connected to the driving member 21, the pushing member 23 and the cutting member 4 are both arranged on the mounting seat 22, and the driving member 21 is used to drive the mounting seat 22 to move along the second direction ( Figure 1 The cam moves in the direction of the winding needle 1 (in the Y-axis direction) to drive the cutting member 4 to cut the material strip L to form a free end L1, and the pushing member 23 pushes the free end L1 into the gap 12102.

[0082] Since the pushing member 23 and the cutting member 4 are both arranged on the mounting seat 22, and the mounting seat 22 is connected to the driving member 21, when the driving member 21 drives the mounting seat 22 to move along the second direction toward the direction close to the winding needle 1, it can drive the cutting member 4 and the pushing member 23 to move synchronously toward the direction close to the winding needle 1. In this way, the purpose of cutting the material strip L by the cutting member 4 to form a free end L1 and pushing the free end L1 into the gap 12102 by the pushing member 23 can be achieved at the same time. That is, while driving the cutting member 4 to cut the material strip L, the same driving member 21 can also drive the pushing member 23 to push the free end L1 into the gap 12102. Compared with the method of providing separate driving members for the cutting member 4 and the pushing member 23 respectively, on the one hand, the number of driving members can be reduced, thereby reducing the cost of the winding device 100, and on the other hand, the volume of the winding device 100 can also be reduced.

[0083] The driving member 21 may include but is not limited to a cylinder, which is not limited in this embodiment. The pushing member may be a plate-shaped structure or any other possible structure, which is not limited in this embodiment.

[0084] In some embodiments, see Figure 3 The number of the grooves 12101 is multiple, and the multiple grooves 12101 are arranged along the axial direction of the winding peripheral wall 1220 ( Figure 3 X-axis direction) interval setting, see Figure 8 and Fig. 9 , Fig. 9 yes Figure 8 The pushing member 23 is a structural schematic diagram taken from the negative direction of the Z axis, wherein the pushing member 23 includes a main body 231 and a plurality of insertion portions 232 corresponding one to one with the plurality of grooves 12101, the main body 231 is arranged on the mounting seat 22, and the plurality of insertion portions 232 are arranged on the main body 231 at axial intervals along the winding peripheral wall 1220, the driving member 21 is used for driving the mounting seat 22 to move along the second direction toward the direction close to the winding needle 1, and driving each insertion portion 232 to push the free end L1 into the gap 12102 along the second direction, and each groove 12101 can accommodate the corresponding insertion portion 232.

[0085] By making the number of grooves 12101 multiple and the number of insertion parts 232 multiple and corresponding to the multiple grooves 12101 one by one, in the process of the multiple insertion parts 232 pushing the free end L1 into the gap 12102, only the multiple insertion parts 232 of the pushing member 23 will contact the material strip L to push the material strip L into the gap 12102, and the gap between two adjacent insertion parts 232 will not contact the material strip L. In this way, the total contact area between the pushing member 23 and the material strip L can be reduced as much as possible while ensuring that the pushing member 23 can push the material strip L into the gap 12102, thereby reducing the possibility of the material strip L being damaged due to the friction of the pushing member 23 to a certain extent.

[0086] In some embodiments, see Figure 8 The push assembly 2 also includes: a guide seat 24, the guide seat 24 is fixedly arranged, and the mounting seat 22 is arranged along the second direction ( Figure 8 The guide seat 24 is slidably disposed in a reciprocating manner (in the Y-axis direction).

[0087] By providing the guide seat 24, the mounting seat 22 can slide back and forth more smoothly and more steadily along the second direction, thereby making the cutting member 4 and the pushing member 23 move more smoothly and more steadily along the second direction.

[0088] There are many ways to arrange the mounting seat 22 on the guide seat 24 in a reciprocating and slidable manner along the second direction. In one possible implementation, see Figure 8 A guide rod 221 can be provided on the mounting seat 22, and a linear bearing can be provided on the guide seat 24. The guide rod 221 is passed through the linear bearing along the second direction. In this way, under the guiding action of the linear bearing, the mounting seat 22 can be reciprocatingly slidably arranged on the guide seat 24 along the second direction to achieve the purpose.

[0089] Of course, the mounting seat 22 may also be arranged on the guide seat 24 in a reciprocatingly slidable manner along the second direction in other ways, and this embodiment does not limit this.

[0090] In some embodiments, see Figure 4 The winding device 100 further includes: a material strip guiding assembly 5, the material strip guiding assembly 5 includes: a first pressing roller assembly 51 and a second pressing roller assembly 52, wherein the second pressing roller assembly 52 and the first pressing roller assembly 51 are located on both sides of the cutting member 4 along the conveying direction of the material strip L ( Figure 4The first pressing roller assembly 51 includes a first fixed roller 511 and a first pressing roller 512, and the second pressing roller assembly 52 includes a second fixed roller 521 and a second pressing roller 522. The first pressing roller 512 is used to move toward the direction close to the first fixed roller 511 so as to clamp the material strip L between the first pressing roller 512 and the first fixed roller 511, and the second pressing roller 522 is used to move toward the direction close to the second fixed roller 521 so as to clamp the material strip L between the second pressing roller 522 and the second fixed roller 521.

[0091] Since the second pressure roller assembly 52 and the first pressure roller assembly 51 are located on both sides of the cutting piece 4 along the conveying direction of the material strip L, and since the material strip L can be clamped between the first fixed roller 511 and the first pressure roller 512, and between the second fixed roller 521 and the second pressure roller 522, respectively, the conveyance of the material strip L can be guided on both sides of the cutting piece 4, making the conveyance of the material strip L smoother, thereby avoiding or reducing the situation in which the material strip L is abnormally cut off due to shaking to the cutting piece 4 during the conveyance process.

[0092] In some embodiments, see Figure 4 The first pressing roller 512 abuts against the first fixed roller 511 to form a first tangent line Q1, the second pressing roller 522 abuts against the second fixed roller 521 to form a second tangent line Q2, the plane where the first tangent line Q1 and the second tangent line Q2 are located is a common tangent plane S, and the common tangent plane S is perpendicular to the second direction.

[0093] Since the material strip L can be sandwiched between the first fixed roller 511 and the first pressing roller 512, and between the second fixed roller 521 and the second pressing roller 522, when the material strip L is sandwiched between the first fixed roller 511 and the first pressing roller 512, and between the second fixed roller 521 and the second pressing roller 522, the plane where the material strip L is located will coincide with the common cutting plane S. Since the common cutting plane S is perpendicular to the second direction, and since the second direction is the direction in which the driving member 21 drives the cutting member 4 to cut the material strip L, by making the common cutting plane S coincide with the second direction ( Figure 4 The cutting piece 4 is perpendicular to the Y-axis direction, so that the cutting piece 4 can cut the material strip L along a direction perpendicular to the plane where the material strip L is located. This arrangement can make the material strip L easier to be cut by the cutting piece 4.

[0094] In addition, by moving the first pressure roller 512 toward the direction approaching the first fixed roller 511 to clamp the material strip L between the first pressure roller 512 and the first fixed roller 511, and by moving the second pressure roller 522 toward the direction approaching the second fixed roller 521 to clamp the material strip L between the second pressure roller 522 and the second fixed roller 521, the purpose of guiding the conveying direction of the material strip L to be perpendicular to the second direction can be achieved. The implementation method is simple, and the cost of the material strip guiding assembly 5 can be reduced while ensuring the operating reliability of the material strip guiding assembly 5.

[0095] In addition, when the conveying trajectory of the material strip L is guided by the first pressure roller assembly 51 and the second pressure roller assembly 52, it can be achieved by only making the first pressure roller 512 abut against the first fixed roller 511, and the second pressure roller 522 abut against the second fixed roller 521. There is no need to make the first pressure roller 512 and the second pressure roller 522 abut against the winding needle 1 respectively. Therefore, the situation in which the winding needle 1 bends due to the abutment force can be avoided.

[0096] It should be noted that the abutment between the first pressing roller 512 and the first fixed roller 511 to form the first tangent line Q1 can be understood in a broad sense, which can be understood as the first pressing roller 512 directly abutting against the first fixed roller 511 to form the first tangent line Q1, or can be understood as the first pressing roller 512 abutting against the first fixed roller 511 through the material belt L to form the first tangent line Q1, which is not limited in this embodiment. The abutment between the second pressing roller 522 and the second fixed roller 521 to form the second tangent line Q2 can be understood in a similar way, which will not be described in detail in this embodiment.

[0097] In addition, the above-mentioned material strip guiding assembly 5 including the first pressure roller assembly 51 and the second pressure roller assembly 52 is only one possible structure of the material strip guiding assembly 5 given in this embodiment. Of course, the material strip guiding assembly 5 can also be other possible structures. It only needs to be able to guide the conveying direction of the material strip L to be perpendicular to the second direction. This embodiment does not limit this.

[0098] In some embodiments, see Figure 4 and Fig.10 , Fig.10 yes Figure 4 The structural schematic diagram of the first pressure roller assembly, the first pressure roller assembly 51 also includes a first pressure roller driving member 513 and a first elastic member 514, the first pressure roller driving member 513 is connected to the first pressure roller 512 through the first elastic member 514, the first pressure roller driving member 513 is used to drive the first pressure roller 512 to move in the direction close to the first fixed roller 511, and the elastic force direction of the first elastic member 514 is parallel to the movement direction of the first pressure roller 512.

[0099] Since the first pressure roller driving member 513 is connected to the first pressure roller 512 through the first elastic member 514, and since the direction of the elastic force of the first elastic member 514 is parallel to the movement direction of the first pressure roller 512, when the first pressure roller 512 moves to abut against the first fixed roller 511, the first pressure roller 512 and the first fixed roller 511 will be in flexible contact with each other, thereby avoiding or reducing the possibility of one or both of the first pressure roller 512 and the first fixed roller 511 being damaged.

[0100] The first roller driving member 513 may be a cylinder or an electric cylinder, etc., which is not limited in this embodiment. The first elastic member 514 may be a spring or other possible elastic member, which is not limited in this embodiment.

[0101] In some embodiments, the second pressure roller assembly 52 also includes a second pressure roller driving member and a second elastic member. The second pressure roller driving member is connected to the second pressure roller through the second elastic member. The second pressure roller driving member is used to drive the second pressure roller to move in a direction close to the second fixed roller. The elastic force direction of the second elastic member is parallel to the movement direction of the second pressure roller.

[0102] When the second pressure roller assembly 52 also includes a second pressure roller driving component and a second elastic component, its specific structure may be similar to the structure when the first pressure roller assembly 51 also includes a first pressure roller driving component 513 and a first elastic component 514. For details, please refer to the description of the first pressure roller assembly 51 in the above embodiment, which will not be repeated in this embodiment.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A winding device (100), characterized in that: include: A winding needle (1), the winding needle (1) comprising a winding needle seat (11), a first half needle assembly (12) and a second half needle assembly (13), the winding needle seat (11) being rotatably arranged, the first half needle assembly (12) and the second half needle assembly (13) being both arranged on the winding needle seat (11) and facing each other along a first direction, the first half needle assembly (12) comprising a first inner clamping needle (121) and a first outer winding needle (122), the second half needle assembly (13) comprising a second inner clamping needle (131) and a second outer winding needle (132), a groove (12101) being arranged on the clamping surface (1210) of the first inner clamping needle (121) and / or the clamping surface (1210) of the second inner clamping needle (131), the first outer winding needle (122) and the second outer winding needle (132) jointly forming a winding peripheral wall (1220); A material pushing assembly (2), wherein at least one of the first inner clamping needle (121) and the second inner clamping needle (131) can move in the first direction away from the other, so that a gap (12102) is formed between the clamping surface (1210) of the first inner clamping needle (121) and the clamping surface (1210) of the second inner clamping needle (131), and the material pushing assembly (2) is used to move in the second direction toward the direction close to the groove (12101) to push the material strip (L) into the gap (12102), and the The groove (12101) can accommodate the material pushing assembly (2), and at least one of the first inner clamping needle (121) and the second inner clamping needle (131) can also move along the first direction toward the other so as to clamp the material strip (L) through the clamping surface (1210), and the winding needle seat (11) is used to drive the first outer winding needle (122) and the second outer winding needle (132) to rotate together so as to wind the material strip (L) exposed in the gap (12102) around the winding wall (1220).

2. The winding device (100) according to claim 1, characterized in that The winding device (100) also includes a turntable (3), which is rotatably arranged around its own axis, and the winding needle seat (11) is rotatably arranged on the turntable (3) around the axis of the winding wall (1220), and the axis of the winding wall (1220) deviates from the axis of the turntable (3). At least one workstation is arranged around the turntable (3), and at least one of the workstations includes a winding station (31). The winding station (31) is located on the orbital trajectory of the winding needle (1), and the pushing assembly (2) is used to push the material strip (L) into the gap (12102) when the winding needle (1) rotates to the winding station (31), wherein the orbital trajectory of the winding needle (1) refers to the trajectory of the turntable (3) driving the winding needle (1) to rotate.

3. The winding device (100) according to claim 2, characterized in that The number of the winding needles (1) is plural, and the plural winding needles (1) are arranged on the rotating disk (3) at intervals along the circumference of the rotating disk (3).

4. The winding device (100) according to claim 3, characterized in that The plurality of workstations also include a gluing workstation (32) and a material unloading workstation (33); the winding workstation (31), the gluing workstation (32) and the material unloading workstation (33) are sequentially arranged along the circumference of the turntable (3).

5. The winding device (100) according to any one of claims 1 to 4, characterized in that: The winding device (100) further comprises: A cutting piece (4), wherein the cutting piece (4) is used to cut the material strip (L) to form a free end (L1), and the pushing assembly (2) is used to push the free end (L1) into the gap (12102).

6. The winding device (100) according to claim 5, characterized in that A cutter avoidance groove (14) is provided on one of the first outer winding needle (122) and the second outer winding needle (132), and the cutter avoidance groove (14) is located on the moving track of the cutting member (4).

7. The winding device (100) according to claim 5, characterized in that The pusher assembly (2) comprises: A driving member (21); A mounting seat (22), wherein the mounting seat (22) is connected to the driving member (21); A pushing member (23), wherein the pushing member (23) and the cutting member (4) are both arranged on the mounting seat (22), and the driving member (21) is used to drive the mounting seat (22) to move along the second direction toward the direction close to the winding needle (1), so as to drive the cutting member (4) to cut the material strip (L) to form the free end (L1), and the pushing member (23) pushes the free end (L1) into the gap (12102).

8. The winding device (100) according to claim 7, characterized in that The number of the grooves (12101) is multiple, and the multiple grooves (12101) are arranged at axial intervals along the winding peripheral wall (1220). The pushing member (23) includes a main body (231) and a plurality of insertion parts (232) corresponding to the multiple grooves (12101) one by one. The main body (231) is arranged on the mounting seat (22), and the multiple insertion parts (232) are arranged on the main body (231) at axial intervals along the winding peripheral wall (1220). The driving member (21) is used to drive the mounting seat (22) to move along the second direction toward the direction close to the winding needle (1), and drive each of the insertion parts (232) to push the free end (L1) into the gap (12102) along the second direction. Each of the grooves (12101) can accommodate the corresponding insertion part (232).

9. The winding device (100) according to claim 5, characterized in that The winding device (100) further comprises: a material strip guiding assembly (5), wherein the material strip guiding assembly (5): a first pressing roller assembly (51); and A second pressing roller assembly (52), the second pressing roller assembly (52) and the first pressing roller assembly (51) are located on both sides of the cutting piece (4) along the conveying direction of the material strip (L), the first pressing roller assembly (51) includes a first fixed roller (511) and a first pressing roller (512), the second pressing roller assembly (52) includes a second fixed roller (521) and a second pressing roller (522), the first pressing roller (512) is used to move in a direction close to the first fixed roller (511) so as to clamp the material strip (L) between the first pressing roller (512) and the first fixed roller (511), and the second pressing roller (522) is used to move in a direction close to the second fixed roller (521) so as to clamp the material strip (L) between the second pressing roller (522) and the second fixed roller (521).

10. The winding device (100) according to claim 9, characterized in that The first pressing roller (512) abuts against the first fixed roller (511) to form a first tangent line (Q1), and the second pressing roller (522) abuts against the second fixed roller (521) to form a second tangent line (Q2). The plane where the first tangent line (Q1) and the second tangent line (Q2) are located is a common tangent plane (S), and the common tangent plane (S) is perpendicular to the second direction.

11. The winding device (100) according to claim 9, characterized in that The first pressure roller assembly (51) further comprises a first pressure roller driving member (513) and a first elastic member (514), wherein the first pressure roller driving member (513) is connected to the first pressure roller (512) via the first elastic member (514), and the first pressure roller driving member (513) is used to drive the first pressure roller (512) to move in a direction close to the first fixed roller (511), and the elastic force direction of the first elastic member (514) is parallel to the movement direction of the first pressure roller (512); and / or, the second pressure roller assembly (52) further comprises a second pressure roller driving member and a second elastic member, wherein the second pressure roller driving member is connected to the second pressure roller (522) via the second elastic member, and the second pressure roller driving member is used to drive the second pressure roller (522) to move in a direction close to the second fixed roller (521), and the elastic force direction of the second elastic member is parallel to the movement direction of the second pressure roller (522).

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