Hobbing trigger mechanism and winding equipment

Abstract

The utility model relates to a hobbing trigger mechanism and winding equipment. The hobbing trigger mechanism comprises a rolling assembly, a rolling assembly and a control assembly, wherein the rolling assembly is used for pressing a material belt onto a winding needle assembly; the hobbing trigger assembly comprises a rotating shaft, a cutter and a push plate, the cutter is arranged on the rotating shaft, the push plate is provided with an air blowing opening, and the rotating shaft can rotate around the axis of the rotating shaft so as to drive the cutter to rotate to be opposite to the winding needle assembly; when the rotating shaft drives the cutter to rotate to be opposite to the winding needle assembly, the cutter cuts off the passing material belt, the air blowing opening blows the upstream cut-off end formed after the material belt is cut off into the winding needle assembly, and the push plate controllably moves into the winding needle assembly and abuts against a material clamping rod in the winding needle assembly to clamp the upstream cut-off end of the material belt.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing equipment, in particular to a rolling cutting trigger mechanism and a winding device. Background Art

[0002] The battery cell is an important part of the battery and can be made by winding a winding needle on each layer of strip (such as four layers of strip including a separator, an anode sheet, a separator, and a cathode sheet).

[0003] In the prior art, each layer of strip is merged by a film merging mechanism and then enters the winding needle at the first station for winding. After the winding needle at the first station winds one battery cell, it switches to the second station, and another winding needle switches to the first station. At this time, each layer of strip passes through the film merging mechanism and then passes through the first station. The winding needle at the first station extends from the turret to complete threading (that is, the strip is threaded into the slit of the winding needle). Then, the inner clamping needle in the winding needle clamps the strip, and then the cutter between the first station and the second station cuts the strip. Then, the winding needle at the first station starts to wind the next battery cell. In summary, the operation process of the winding operation in the prior art is complex, resulting in a complex structure of the winding device and low production efficiency. Summary of the Utility Model

[0004] Based on this, in view of the problem that the operation process of the winding operation in the prior art is complex, resulting in a complex structure of the winding device and low production efficiency, it is necessary to provide a rolling cutting trigger mechanism and a winding device that improve the above defects.

[0005] A rolling cutting trigger mechanism includes:

[0006] A roller pressing assembly for pressing the strip against the winding needle assembly; and

[0007] A rolling cutting trigger assembly including a rotating shaft, a cutter, and a push plate. The cutter is arranged on the rotating shaft. The push plate has a blowing port. The rotating shaft can rotate around its own axis to drive the cutter to rotate to face the winding needle assembly.

[0008] Wherein, when the rotating shaft drives the cutter to rotate to face the winding needle assembly, the cutter cuts the strip passing by, the blowing port blows the upstream cutting end formed after the strip is cut into the winding needle assembly, and the push plate can be controlled to move into the winding needle assembly and push the clamping rod in the winding needle assembly to clamp the upstream cutting end of the strip.

[0009] In one embodiment, the push plate is arranged on the rotating shaft.

[0010] In one embodiment, the rotary cutting trigger assembly further includes a mounting base and a cam. The rotating shaft is rotatably connected to the mounting base. The cutting knife is fixedly connected to the rotating shaft. The push plate is movably connected to the rotating shaft. The cam is sleeved on the rotating shaft and fixedly connected to the mounting base;

[0011] The cam is in driving connection with the push plate to drive the push plate to approach or move away from the coiling needle assembly relative to the rotating shaft during the process of the push plate following the rotation of the rotating shaft.

[0012] In one embodiment, the cam has a track groove. A follower roller is mounted on the push plate. The follower roller is in rolling fit with the track groove;

[0013] During the process of the rotating shaft driving the push plate to rotate, the follower roller rolls along the track groove and drives the push plate to approach or move away from the coiling needle assembly relative to the rotating shaft under the guiding action of the track groove.

[0014] In one embodiment, follower rollers are mounted at both ends of the push plate in the axial direction of the rotating shaft. Two cams are provided. The two follower rollers are respectively in rolling fit with the track grooves on the two cams.

[0015] In one embodiment, the rotary cutting trigger assembly further includes a trigger driving member mounted on the rotating shaft. The push plate is movably connected to the rotating shaft. The driving end of the trigger driving member is connected to the push plate so that the trigger driving member can drive the push plate to approach or move away from the coiling needle assembly relative to the rotating shaft.

[0016] In one embodiment, the rotary cutting trigger assembly includes a guide rod. One end of the guide rod is fixedly connected to the rotating shaft. The other end of the guide rod is fixedly connected to the cutting knife. The push plate is provided with a guide hole. The guide rod is arranged through the guide hole so that the push plate can move along the guide rod.

[0017] In one embodiment, one end of the push plate close to the coiling needle assembly has a wedge block. The wedge block has an inclined surface inclined in the moving direction of the push plate. When the push plate moves into the coiling needle assembly, the push plate pushes against the clamping rod in the coiling needle assembly through the inclined surface to convert the moving motion of the push plate into the motion of clamping the upstream cut end of the material tape by the clamping rod in the coiling needle assembly.

[0018] In one embodiment, the number of the wedge blocks is two. The two wedge blocks are respectively located at both ends of the push plate in the direction parallel to the axial direction of the rotating shaft. The cutting knife is located between the two wedge blocks.

[0019] In one embodiment, the rolling component includes a first rolling component which has a first pressing roller rotatable about its own axis. The first rolling component can controllably drive the first pressing roller to press the part of the material tape upstream of the cutter onto the coiling needle component.

[0020] In one embodiment, the rolling component further includes a second rolling component which has a second pressing roller rotatable about its own axis. The second rolling component can controllably drive the second pressing roller to press the part of the material tape downstream of the cutter onto the coiling needle component.

[0021] In one embodiment, the rotary cutting trigger component further includes a mounting base, and the rotating shaft is rotatably connected to the mounting base; the rotary cutting trigger mechanism further includes a driving component, and the mounting base is mounted on the driving end of the driving component so that the driving component can drive the mounting base to approach or move away from the coiling needle component;

[0022] The first rolling component and / or the second rolling component is mounted on the mounting base.

[0023] A winding device includes the rotary cutting trigger mechanism described in any of the above embodiments.

[0024] In actual use of the above rotary cutting trigger mechanism and the winding device, the material tape is conveyed downward to the feeding at a certain speed, and the coiling needle component rotates about its own axis. At the same time, the rolling component presses the material tape onto the coiling needle component, and the rotating shaft drives the cutter to rotate. When the cutter rotates with the rotating shaft to face the coiling needle component, the cutter contacts the passing material tape and cuts it off. The air blowing port on the push plate blows air towards the upstream cutting end formed after the material tape is cut off until the upstream cutting end of the material tape is blown into the coiling needle component. At this time, control the push plate to move a certain distance relative to the rotating shaft towards the inside of the coiling needle component, so that the push plate pushes against the clamping rod inside the coiling needle component. Under the pushing action of the push plate, the clamping rod clamps and fixes the upstream cutting end of the material tape. Then, control the push plate to withdraw from the coiling needle component, and the coiling needle component continues to rotate, so as to wind the material tape onto the coiling needle component to form a coil core.

[0025] In this way, without stopping the downstream conveyance of the material tape, during the process of driving the cutter to rotate by the rotating shaft, the material tape is cut off (i.e., rotary cutting), and the upstream cutting end of the material tape is blown into the coiling needle component by the airflow blown out from the air blowing port. Moreover, the clamping rod inside the coiling needle component is triggered by the push plate, so that the clamping rod inside the coiling needle component clamps and fixes the upstream cutting end of the material tape. During this process, the coiling needle component keeps rotating. On the one hand, the production efficiency is greatly improved. On the other hand, the actions of threading the needle and combining the films are cancelled, and the structure of the winding device is greatly simplified. Description of the Drawings

[0026] Figures 1 to 5 Structural schematic diagram of the operation process of the winding device in an embodiment of the present utility model;

[0027] Figure 6 is Figure 4 Partial enlarged view of the winding device shown at the first station;

[0028] Figure 7 is Figure 1 Structural schematic diagram of the roll cutting trigger mechanism of the winding device shown;

[0029] Figure 8 is Figure 7 Structural schematic diagram of the roll cutting trigger assembly of the roll cutting trigger mechanism shown;

[0030] Figure 9 is Figure 8 Front view of the roll cutting trigger assembly shown;

[0031] Figure 10 is Figure 9 Structural schematic diagram of the roll cutting trigger assembly after being truncated along the A-A direction shown;

[0032] Figure 11 is Figure 9 Structural schematic diagram of the push plate of the roll cutting trigger assembly shown;

[0033] Figure 12 is Figure 9 Structural schematic diagram of the guide rod and the cutting tool of the roll cutting trigger assembly shown;

[0034] Figure 13 is Figure 1 Structural schematic diagram of the winding needle mechanism of the winding device shown;

[0035] Figure 14 is Figure 13 Structural schematic diagram of the winding needle mechanism shown from another perspective (the first outer needle is omitted);

[0036] Figure 15 is Figure 14 Structural schematic diagram of the winding needle mechanism shown from another perspective (the first outer needle is omitted);

[0037] Figure 16 is Figure 13 Cross-sectional view of the winding needle mechanism shown (the first outer needle is omitted);

[0038] Figure 17 is Figure 13 Assembly drawing of the clamping rod, fixed bracket, rotating bracket, etc. of the winding needle mechanism shown;

[0039] Figure 18 isFigure 13 Schematic cross-sectional structure diagram of the needle winding mechanism shown Specific embodiments

[0040] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0041] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0046] Please refer to Figures 1 to 5 , an embodiment of the present utility model provides a winding device, including a winding needle mechanism 10 and a rolling cutting trigger mechanism 20. The winding needle mechanism 10 includes a winding needle assembly 11 located at the first station a1 and a clamping rod 12 disposed on the winding needle assembly 11. The winding needle assembly 11 has a slit 110 for the supply tape A to enter and a clamping surface B (see Figure 6 ) that is a side wall of the slit 110. The winding needle assembly 11 can be controlled to rotate to wind the tape A. The clamping rod 12 is located in the slit 110 of the winding needle assembly 11 and can be operably switched between a clamping position and a release position. When the clamping rod 12 is in the clamping position, the clamping rod 12 abuts against the above-mentioned clamping surface B, so as to clamp the tape A entering the slit 110 between the clamping rod 12 and the clamping surface B, and further enable the winding needle assembly 11 to drive the tape A to wind on the winding needle assembly 11 when rotating. When the clamping rod 12 is in the release position, the clamping rod 12 is separated from the above-mentioned clamping surface B, so that there is a certain gap between the clamping rod 12 and the clamping surface B, that is, the tape A between the clamping rod 12 and the clamping surface B is released or it is convenient for the tape A to enter the gap between the clamping rod 12 and the clamping surface B.

[0047] Please refer to Figures 6 to 10, the rotary cutting trigger mechanism 20 includes a roller pressing assembly 24 and a rotary cutting trigger assembly 23. The roller pressing assembly 24 is used to press the strip A against the coiling needle assembly 11 located at the first station a1. The rotary cutting trigger assembly 23 includes a rotating shaft 232, a cutting knife 233, and a push plate 234. The cutting knife 233 and the push plate 234 are both arranged on the rotating shaft 232, and the push plate 234 is provided with a blowing port 236. The rotating shaft 232 can rotate around its own axis to drive the cutting knife 233 and the push plate 234 to rotate to face the gap 110 of the coiling needle assembly 11 located at the first station a1. Among them, when the rotating shaft 232 drives the cutting knife 233 and the push plate 234 to rotate to face the gap 110 of the coiling needle assembly 11 located at the first station a1, the cutting knife 233 cuts the passing strip A, and the blowing port 236 blows the upstream cut end A1 of the strip A into the gap between the clamping rod 12 and the clamping surface B. The push plate 234 can be controlled to move relative to the rotating shaft 232 into the gap 110, and push the clamping rod 12 from the release position to the clamping position, so that the clamping rod 12 presses and fixes the upstream cut end A1 of the strip A on the clamping surface B.

[0048] Please refer to again Figures 1 to 5 As shown, in actual use of the above winding equipment, the strip A is conveyed downward at a certain speed and passes through the first station a1. The coiling needle assembly 11 reaches the first station a1 and rotates around its own axis. At this time, the clamping rod 12 in the gap 110 of the coiling needle assembly 11 located at the first station a1 is in the release position. At the same time, the roller pressing assembly 24 presses the strip A against the coiling needle assembly 11 located at the first station a1, and the rotating shaft 232 drives the cutting knife 233 and the push plate 234 to rotate (see Figures 1 to 2 ). When the cutting knife 233 and the push plate 234 follow the rotating shaft 232 to rotate to the gap 110 on the coiling needle assembly 11 located at the first station a1, the cutting knife 233 contacts the passing strip A and cuts it. The blowing port 236 on the push plate 234 blows air to the upstream cut end A1 formed after the strip A is cut until the upstream cut end A1 of the strip A is blown into the gap between the clamping rod 12 and the clamping surface B. At this time, control the push plate 234 to move a certain distance relative to the rotating shaft 232 into the gap 110 of the coiling needle assembly 11 located at the first station a1, so that the push plate 234 pushes the clamping rod 12 in the gap 110 of the coiling needle assembly 11 located at the first station a1, so that the clamping rod 12 moves towards the clamping surface B under the pushing action of the push plate 234 until the clamping rod 12 clamps the upstream cut end A1 of the strip A on the clamping surface B (see Figures 3 to 5)。Then, control the push plate 234 to withdraw from the gap 110 of the coiling needle assembly 11 at the first station a1, and the coiling needle assembly 11 at the first station a1 continues to rotate, so as to wind the strip A around the coiling needle assembly 11 to form the coil core A2. That is to say, during the process that the cutting knife 233 cuts the passing strip A, the push plate 234 enters the gap 110 and pushes against the clamping rod 12, and the push plate 234 withdraws from the gap 110, the rotating shaft 232 keeps rotating to drive the cutting knife 233 and the push plate 234 to rotate. At the same time, the coiling needle assembly 11 also keeps rotating, and the strip A also keeps being conveyed downstream.

[0049] In this way, without stopping the downstream conveyance of the strip A, during the process of driving the cutting knife 233 to rotate by the rotating shaft 232, the strip A is cut (i.e., roll cutting), and the upstream cut end A1 of the strip A is blown into the gap 110 of the coiling needle assembly 11 by the air flow blown out from the air blowing port 236. Moreover, the push plate 234 triggers the clamping rod 12 to clamp and fix the upstream cut end A1 of the strip A on the clamping surface B. During this process, the coiling needle assembly 11 keeps rotating, and the strip A also keeps being conveyed downstream. On the one hand, the production efficiency is greatly improved. On the other hand, the operations of threading the needle and combining the films are cancelled, greatly simplifying the structure of the winding equipment.

[0050] It should be noted that it is not limited to pushing and triggering the clamping rod 12 by the push plate 234. In some other embodiments, a driving member can be arranged on the coiling needle assembly 11 to provide the power for driving the clamping rod 12 to move from the release position to the clamping position. At this time, the function of the push plate 234 is only to blow the upstream cut end A1 of the strip A into the space between the clamping rod 12 and the clamping surface B by the air blowing port 236 thereon.

[0051] It should also be noted that the push plate 234 is not limited to being installed on the rotating shaft 232. In some other embodiments, the push plate 234 can also be arranged on other moving parts, as long as it can drive the push plate 234 to approach or move away from the coiling needle assembly 11 at the first station a1 and realize pushing the clamping rod 12 to move from the release position to the clamping position, which is not limited herein.

[0052] For the convenience of understanding, in the following, an embodiment in which the push plate 234 is installed on the rotating shaft 232 and the push plate 234 realizes pushing and triggering the clamping rod 12 during the process of rotating with the rotating shaft 232, so that the clamping rod 12 switches from the release position to the clamping position will be taken as an example for description.

[0053] Please continue to refer to Figures 6 to 10, It can be understood that after the cutting knife 233 cuts the passing strip A, an upstream cutting end A1 located upstream and a downstream cutting end located downstream are formed at the break of the strip A. The downstream cutting end is separated from the upstream cutting end A1 as the downstream strip A is conveyed downstream. Under the pressing action of the rolling component 24 on the strip A, the upstream cutting end A1 remains at the gap 110 of the coiling needle component 11, and then is blown by the air flow blown out from the air outlet 236 into the gap 110 of the coiling needle component 11 at the first station a1 and is clamped and fixed on the clamping surface B by the clamping rod 12, so that the coiling needle component 11 at the first station a1 can wind the strip A.

[0054] In an embodiment of the present utility model, the roll cutting trigger assembly 23 further includes a mounting seat 231 and a cam 235. The rotating shaft 232 is rotatably connected to the mounting seat 231, that is to say, the rotating shaft 232 can rotate relative to the mounting seat 231 around its own axis. The cutting knife 233 is fixedly connected to the rotating shaft 232, and the push plate 234 is movably connected to the rotating shaft 232, that is to say, the cutting knife 233 and the push plate 234 can rotate together with the rotating shaft 232, and the push plate 234 can also move relative to the rotating shaft 232 during the process of rotating together with the rotating shaft 232, so as to enter or exit the gap 110 of the coiling needle component 11 at the first station a1. The cam 235 is sleeved on the rotating shaft 232 and is fixedly connected to the mounting seat 231, so that the cam 235 does not rotate together with the rotating shaft 232 when the rotating shaft 232 rotates. The cam 235 is in driving connection with the push plate 234 to drive the push plate 234 to approach or move away from the coiling needle component 11 at the first station a1 relative to the rotating shaft 232 during the process of the push plate 234 rotating together with the rotating shaft 232. In this way, the rotating shaft 232 drives the push plate 234 to rotate together, so that the push plate 234 generates relative rotation relative to the cam 235, so that under the action of the cam 235, the push plate 234 is driven to move relative to the rotating shaft 232 and enter or exit the gap 110 of the coiling needle component 11 at the first station a1, and further the push plate 234 pushes against the clamping rod 12 to trigger the clamping rod 12, and the triggered clamping rod 12 clamps and fixes the upstream cutting end A1 of the strip A on the clamping surface B.

[0055] It should be noted that by using the cam 235 to drive the push plate 234 to perform a linear motion relative to the rotating shaft 232 while performing a rotational motion together with the rotating shaft 232, the push plate 234 can trigger the clamping rod 12 in the gap 110 of the coiling needle component 11. There is no need to configure an additional driving member to drive the push plate 234 to move relative to the rotating shaft 232, which greatly simplifies the structure of the roll cutting trigger assembly 23, reduces the space occupied by the roll cutting trigger assembly 23, and reduces the difficulty of the spatial layout of the components of the roll cutting trigger assembly 23.

[0056] Optionally, the cam 235 has a track groove 2351, and a follower roller 238 is installed on the push plate 234 (seeFigure 9 ) The follower roller 238 is in rolling fit with the track groove 2351 of the cam 235. During the process of the rotating shaft 232 driving the push plate 234 to rotate, the push plate 234 drives the follower roller 238 thereon to roll along the track groove 2351. Under the guiding action of the track groove 2351, the follower roller 238 drives the push plate 234 to approach or move away from the needle winding assembly 11 located at the first station a1 relative to the rotating shaft 232, so that the push plate 234 first enters and then exits the gap 110 of the needle winding assembly 11 located at the first station a1, thereby enabling the push plate 234 to push and trigger the material clamping rod 12 in the gap 110 of the needle winding assembly 11, ensuring that the material clamping rod 12 clamps and fixes the upstream cutting end A1 of the material tape A on the clamping surface B.

[0057] Further, two cams 235 are provided. Follower rollers 238 are installed at both ends of the push plate 234 in a direction parallel to the axial direction of the rotating shaft 232. The two follower rollers 238 are respectively in rolling fit with the track grooves 2351 on the two cams 235, so as to respectively guide the follower rollers 238 at both ends of the push plate 234 by means of the two cams 235. Furthermore, the follower rollers 238 at both ends of the push plate 234 drive the push plate 234 to move relative to the rotating shaft 232 simultaneously, making the movement of the push plate 234 relative to the rotating shaft 232 more stable and reliable, and ensuring that the triggering of the material clamping rod 12 is more accurate and reliable.

[0058] It should be noted that it is not limited to the cam structure formed by the cam 235 with the track groove 2351 and the follower roller 238. Other cam structures can also be used, as long as when the push plate 234 follows the rotating shaft 232 to rotate to be opposite to the gap 110 of the needle winding assembly 11 located at the first station a1, it can drive the push plate 234 to enter or exit the gap 110, so as to realize the pushing and triggering of the material clamping rod 12. It is not limited herein.

[0059] Specifically in the embodiment, the roll cutting trigger assembly 23 further includes a rotary drive member 237 and a transmission assembly (not labeled in the figure). The rotary drive member 237 is installed on the mounting base 231, and the transmission assembly is connected between the output shaft of the rotary drive member 237 and the rotating shaft 232 to transmit the rotational motion of the output shaft of the rotary drive member 237 to the rotating shaft 232, that is, enabling the rotary drive member 237 to drive the rotating shaft 232 to rotate. Optionally, the rotary drive member 237 can be a motor.

[0060] Optionally, the transmission assembly includes a driving wheel 2371, a driven wheel 2372, and a transmission belt 2373. The driving wheel 2371 is mounted on the output shaft of the rotary driving member 237, such that the rotary driving member 237 can drive the driving wheel 2371 to rotate. The driven wheel 2372 is mounted on the rotating shaft 232, such that the rotating shaft 232 can rotate synchronously with the driven wheel 2372. The transmission belt 2373 is sleeved between the driving wheel 2371 and the driven wheel 2372, so that when the driving wheel 2371 rotates, it can drive the driven wheel 2372 to rotate through the transmission belt 2373. Thus, when it is necessary to drive the rotating shaft 232 to rotate, the rotary driving member 237 drives the driving wheel 2371 to rotate, the driving wheel 2371 drives the driven wheel 2372 to rotate through the transmission belt 2373, and the driven wheel 2372 then drives the rotating shaft 232 to rotate. It should be noted that the transmission assembly is not limited to using a belt drive structure, and in other embodiments, a gear drive structure or the like can also be used, which is not limited herein.

[0061] It should also be noted that it is not limited to using the cam drive structure formed by the cam 235 and the follower roller 238 to realize the relative movement of the push plate 234 with respect to the rotating shaft 232. In some other embodiments, the relative movement of the push plate 234 with respect to the rotating shaft 232 can also be powered by additionally providing a driving member. Specifically, the roll cutting trigger assembly 23 further includes a trigger driving member mounted on the rotating shaft 232, and the push plate 234 is movably connected to the rotating shaft 232. The driving end of the trigger driving member is connected to the push plate 234, so that the trigger driving member can drive the push plate 234 to approach or move away from the needle winding assembly 11 located at the first working position a1 relative to the rotating shaft 232. Optionally, the trigger driving member can be a cylinder.

[0062] Please refer to Figures 9 to 12 , optionally, the roll cutting trigger assembly 23 further includes a guide rod 239. One end of the guide rod 239 is fixedly connected to the rotating shaft 232, and the other end of the guide rod 239 is fixedly connected to the cutting tool 233, that is to say, the cutting tool 233 is fixedly connected to the rotating shaft 232 through the guide rod 239. A guiding hole 2343 is formed in the push plate 234, and the guide rod 239 is arranged through the guiding hole 2343 in the push plate 234, so that the push plate 234 can move along the guide rod 239. Thus, the guide rod 239 is used to realize the assembly of the cutting tool 233 and the push plate 234 with the rotating shaft 232, so that the cutting tool 233 is relatively fixed with the rotating shaft 232, and the push plate 234 can move a certain distance relative to the rotating shaft 232. The guide rod 239 also functions to guide the movement of the push plate 234 relative to the rotating shaft 232, making the triggering action of the push plate 234 on the material clamping rod 12 more stable and reliable.

[0063] Optionally, two or more guide rods 239 may be provided, and the guide rods 239 are arranged at intervals along the axial direction of the rotating shaft 232. A plurality of guide holes 2343 corresponding to the guide rods 239 one by one are formed in the push plate 234, and the guide rods 239 penetrate through the corresponding guide holes 2343. The cutting knife 233 is fixedly connected to one end of each guide rod 239 away from the rotating shaft 232. In this way, the two or more guide rods 239 are used to guide the push plate 234, further making the triggering action of the push plate 234 on the material clamping rod 12 more stable and reliable.

[0064] In the embodiment of the present application, one end of the push plate 234 close to the needle winding assembly 11 at the first station a1 has a wedge block 2341. The wedge block 2341 has an inclined surface 2342 inclined in the moving direction of the push plate 234 relative to the rotating shaft 232, that is to say, the inclined surface 2342 is inclined in the axial direction of the guide rod 239. When the push plate 234 moves relative to the rotating shaft 232 into the gap 110 of the needle winding assembly 11 at the first station a1, the push plate 234 pushes the material clamping rod 12 through the inclined surface 2342, so as to convert the moving motion of the push plate 234 into the motion of the material clamping rod 12 approaching the clamping surface B, and further make the material clamping rod 12 clamp and fix the upstream cutting end A1 of the material tape A on the clamping surface B.

[0065] Furthermore, the number of the wedge blocks 2341 is two, and the two wedge blocks 2341 are located at both ends of the push plate 234 in the direction parallel to the axial direction of the rotating shaft 232, and the cutting knife 233 is located between the two wedge blocks 2341. In this way, the material tape A passes through the space between the two wedge blocks 2341, so that the cutting knife 233 can cut the passing material tape A when rotating with the rotating shaft 232, thereby avoiding the contact between the wedge block 2341 and the material tape A and causing the cutting knife 233 to be unable to roll-cut the material tape A. Moreover, the two wedge blocks 2341 are used to push and trigger the material clamping rod 12 in the gap 110 at the same time, ensuring that the material clamping rod 12 is accurately triggered and the upstream cutting end A1 of the material tape A is clamped and fixed on the clamping surface B.

[0066] Specifically in the embodiment, the coiling needle assembly 11 further has a wall surface C which is the other side wall of the slit 110, and the wall surface C and the clamping surface B are arranged opposite to each other. When the material clamping rod 12 is in the released position, there is a gap between the material clamping rod 12 and the wall surface C, and this gap is used for the wedge block 2341 to enter. Thus, after the upstream cut end A1 of the strip A is blown into the space between the material clamping rod 12 and the clamping surface B, the push plate 234 moves close to the coiling needle assembly 11 located at the first station a1 until the wedge block 2341 on the push plate 234 is inserted into the gap between the material clamping rod 12 and the wall surface C, so that the wedge block 2341 pushes against the material clamping rod 12 through its inclined surface 2342, causing the material clamping rod 12 to move towards the clamping surface B until the upstream cut end A1 of the strip A is clamped on the clamping surface B. In this way, the setting of this gap enables the wedge block 2341 on the push plate 234 to accurately push against the material clamping rod 12, ensuring that the material clamping rod 12 accurately and timely switches from the released position to the material clamping position.

[0067] Specifically in the embodiment, the material clamping rod 12 can be rotated from the released position to the material clamping position under the pushing action of the wedge block 2341 on the push plate 234. When pushing, the inclined surface 2342 on the wedge block 2341 contacts the material clamping rod 12. The surface of the material clamping rod 12 for contacting the inclined surface 2342 of the wedge block 2341 on the push plate 234 is an arc surface, thereby changing the surface contact between the wedge block 2341 and the material clamping rod 12 into line contact, greatly reducing the frictional force between the wedge block 2341 and the material clamping rod 12, making the pushing of the wedge block 2341 against the material clamping rod 12 smoother, and thus preventing the wedge block 2341 from getting stuck in the gap between the material clamping rod 12 and the wall surface C.

[0068] Please continue to refer to Figure 6 and Figure 7 As shown, in the embodiment of the present application, the rolling press assembly 24 includes a first rolling press assembly 21 and a second rolling press assembly 22. The first rolling press assembly 21 has a first pressing roller 211 that can rotate around its own axis, and the first rolling press assembly 21 can controllably drive the first pressing roller 211 to press the part of the strip A located upstream of the cutting knife 233 onto the coiling needle assembly 11 located at the first station a1. The second rolling press assembly 22 has a second pressing roller 221 that can rotate around its own axis, and the second rolling press assembly 22 can controllably drive the second pressing roller 221 to press the part of the strip A located downstream of the cutting knife 233 onto the coiling needle assembly 11 located at the first station a1. In this way, before the cutting knife 233 performs rolling cutting on the strip A, the strip A passing through the upstream and downstream of the cutting knife 233 is both pressed onto the coiling needle assembly 11 located at the first station a1, thereby ensuring that the cutting knife 233 can accurately cut the passing strip A, which is beneficial to improving the rolling cutting quality.

[0069] It can be understood that since the first pressing roller 211 of the first pressing component 21 and the second pressing roller 221 of the second pressing component 22 are both rotatable about their own axes, when the first pressing roller 211 and the second pressing roller 221 press the passing strip A against the coiling needle component 11 at the first working station a1 respectively, the strip A can pass through between the first pressing roller 211 and the coiling needle component 11 at the first working station a1 and between the second pressing roller 221 and the coiling needle component 11 at the first working station a1 and be conveyed downstream under the traction of the downstream. That is to say, during the process of the rotary cutter 233 performing rotary cutting driven by the rotating shaft 232, the rotary cutter 233 rotates following the rotating shaft 232, the coiling needle component 11 at the first working station a1 also rotates, the strip A between the rotary cutter 233 and the coiling needle component 11 is also conveyed downstream, and the rotational speed of the rotating shaft 232, the rotational speed of the coiling needle component 11, and the conveying speed of the strip A downstream are matched with each other to ensure that the speeds of the three are consistent at the moment when the rotary cutter 233 cuts off the strip A, so that the rotary cutter 233 can accurately and quickly cut off the strip A, and the air flow blown out by the air outlet 236 can also accurately blow the upstream cut end A1 of the strip A into the gap 110 of the coiling needle component 11 at the first working station a1.

[0070] Specifically in the embodiment, the rotary cutting trigger mechanism 20 further includes a driving component, and the mounting seat 231 is installed at the driving end of the driving component so that the driving component can drive the mounting seat 231 to approach or move away from the coiling needle component 11 at the first working station a1, thereby driving the rotating shaft 232 and the rotary cutter 233 and the push plate 234 on the rotating shaft 232 to approach or move away from the coiling needle component 11 at the first working station a1 together. In this way, when the driving component drives the mounting seat 231 to move closer to the coiling needle component 11 at the first working station a1, the mounting seat 231 can drive the rotating shaft 232 to move to a rotary cutting position relatively close to the coiling needle component 11 at the first working station a1, so that the rotary cutter 233 on the rotating shaft 232 at this time can perform rotary cutting on the passing strip A, the air outlet 236 on the push plate 234 can blow the upstream cut end A1 of the strip A into the gap 110 of the coiling needle component 11, and the push plate 234 can push and trigger the clamping rod 12.

[0071] When the driving component drives the mounting seat 231 to move away from the coiling needle component 11 at the first working station a1, the mounting seat 231 can drive the rotating shaft 232 to leave the above-mentioned rotary cutting position, so that there is a certain distance between the rotary cutter 233 and the push plate 234 on the rotating shaft 232 and the coiling needle component 11 at the first working station a1, ensuring that the rotary cutter 233 and the push plate 234 on the rotating shaft 232 will not interfere with the winding action of the coiling needle component 11 at the first working station a1.

[0072] It should be noted that the driving component can adopt a linear driving member such as a linear module, as long as it can drive the mounting seat 231 to approach or move away from the coiling needle assembly 11 located at the first station a1. Further, a guiding component such as a slide rail can be used to guide the movement of the mounting seat 231. The specific structures of the driving component and the guiding component are not limited herein, as long as they can drive the mounting seat 231 to accurately approach or move away from the coiling needle assembly 11 located at the first station a1.

[0073] It should also be noted that in some embodiments, the first rolling component 21 is mounted on the mounting seat 231, so that when the driving component drives the mounting seat 231 to approach or move away from the coiling needle assembly 11 located at the first station a1, the mounting seat 231 can drive the rolling cutting trigger component 23 and the first rolling component 21 to approach or move away from the coiling needle assembly 11 located at the first station a1 together. That is to say, the first rolling component 21 and the rolling cutting trigger component 23 share the same driving component, and there is no need to additionally configure a driving component for the first rolling component 21, which greatly simplifies the device structure, reduces the occupied space, and reduces the difficulty of the spatial layout of each component of the rolling cutting trigger mechanism 20.

[0074] Specifically in the embodiment, the first rolling component 21 includes a first mounting frame 212 and a first elastic member 213. The first mounting frame 212 is movably connected to the mounting seat 231 through a first guiding rod 214, and the first pressing roller 211 is rotatably connected to the first mounting frame 212. The first elastic member 213 abuts between the mounting seat 231 and the first mounting frame 212 to provide an elastic force that makes the first mounting frame 212 have a moving tendency to approach the coiling needle assembly 11 located at the first station a1 relative to the mounting seat 231. In this way, during the process that the driving component drives the mounting seat 231 to approach the coiling needle assembly 11 located at the first station a1, the first pressing roller 211 first presses the passing strip A against the coiling needle assembly 11 located at the first station a1. As the mounting seat 231 continues to approach the coiling needle assembly 11, the rotating shaft 232 then moves with the mounting seat 231 to reach the above-mentioned rolling cutting position (during this process, the first elastic member 213 is further compressed). Optionally, the first elastic member 213 can adopt a compression spring.

[0075] During actual use, when the driving component drives the mounting seat 231 to approach the coiling needle assembly 11 located at the first station a1, the first rolling press component 21 and the rotating shaft 232 approach the coiling needle assembly 11 located at the first station a1 together. The first pressing roller 211 of the first rolling press component 21 first presses the passing strip A against the coiling needle assembly 11 located at the first station a1, and then the rotating shaft 232 reaches the above-mentioned rolling cutting position. When the rotating shaft 232 is at the rolling cutting position, the rotating shaft 232 drives the cutting knife 233 and the pushing plate 234 to rotate to face the slit 110 on the coiling needle assembly 11 located at the first station a1, so that the cutting knife 233 cuts the passing strip A at the slit 110 of the coiling needle assembly 11. The air blowing port 236 on the pushing plate 234 blows the upstream cutting end A1 of the strip A into the space between the clamping rod 12 and the clamping surface B in the slit 110. The wedge-shaped block 2341 on the pushing plate 234 enters the slit 110 and pushes the clamping rod 12 towards the clamping surface B, so that the clamping rod 12 is triggered to clamp and fix the upstream cutting end A1 of the strip A on the clamping surface B. After the upstream cutting end A1 of the strip A is clamped and fixed on the clamping surface B by the clamping rod 12, the driving component drives the mounting seat 231 to move away from the coiling needle assembly 11 located at the first station a1. When the driving component drives the mounting seat 231 to move away from the coiling needle assembly 11 located at the first station a1, the rotating shaft 232 first leaves the above-mentioned rolling cutting position under the drive of the mounting seat 231 (during this process, the compression amount of the first elastic member 213 gradually decreases), so that the cutting knife 233 and the pushing plate 234 move away from the coiling needle assembly 11 located at the first station a1, and then the first pressing roller 211 of the first rolling press component 21 is separated from the coiling needle assembly 11 located at the first station a1, that is, the first pressing roller 211 releases the pressing on the passing strip A.

[0076] Of course, in other embodiments, the first rolling press component 21 may not be arranged on the mounting seat 231, and a driving component may be arranged to independently drive the first rolling press component 21 to approach or move away from the coiling needle assembly 11 located at the first station a1, which is not limited herein.

[0077] It should also be noted that, in some embodiments, the second rolling press component 22 is also installed on the mounting seat 231, so that when the driving component drives the mounting seat 231 to approach or move away from the coiling needle assembly 11 located at the first station a1, the mounting seat 231 can drive the rolling cutting trigger assembly 23 and the second rolling press component 22 to approach or move away from the coiling needle assembly 11 located at the first station a1 together. That is to say, the second rolling press component 22 and the rolling cutting trigger assembly 23 share the same driving component, without the need to additionally configure a driving component for the second rolling press component 22, which greatly simplifies the equipment structure, reduces the occupied space, and reduces the difficulty of the spatial layout of each component of the rolling cutting trigger mechanism 20.

[0078] Specifically in the embodiment, the second rolling component 22 includes a second mounting bracket 222 and a second elastic member 223. The second mounting bracket 222 is movably connected to the mounting base 231 through a second guide rod 224, and the second pressing roller 221 is rotatably connected to the second mounting bracket 222. The second elastic member 223 abuts between the mounting base 231 and the second mounting bracket 222 to provide an elastic force that makes the second mounting bracket 222 have a moving tendency to be closer to the needle winding component 11 located at the first station a1 relative to the mounting base 231. In this way, during the process that the driving component drives the mounting base 231 to approach the needle winding component 11 located at the first station a1, the second pressing roller 221 of the second rolling component 22 first presses the passing strip A against the needle winding component 11 located at the first station a1. As the mounting base 231 continues to approach the needle winding component 11, the rotating shaft 232 then moves with the mounting base 231 to reach the above-mentioned rolling cutting position (during this process, the second elastic member 223 is further compressed). Optionally, the second elastic member 223 can adopt a compression spring.

[0079] During the actual use process, when the driving component drives the mounting base 231 to approach the needle winding component 11 located at the first station a1, the second rolling component 22 and the rotating shaft 232 approach the needle winding component 11 located at the first station a1 together. The second pressing roller 221 of the second rolling component 22 first presses the passing strip A against the needle winding component 11 located at the first station a1, and then the rotating shaft 232 reaches the above-mentioned rolling cutting position. When the rotating shaft 232 is at the rolling cutting position, the rotating shaft 232 drives the cutting knife 233 and the pushing plate 234 to rotate to be opposite to the slit 110 on the needle winding component 11 located at the first station a1, so that the cutting knife 233 cuts the passing strip A at the slit 110 of the needle winding component 11. The air blowing port 236 on the pushing plate 2 delivers the upstream cutting end A1 of the strip A into the space between the clamping rod 12 and the clamping surface B in the slit 110. The wedge-shaped block 2341 on the pushing plate 234 enters the slit 110 and pushes the clamping rod 12 to move towards the clamping surface B, so that the clamping rod 12 is triggered to clamp and fix the upstream cutting end A1 of the strip A on the clamping surface B. After the upstream cutting end A1 of the strip A is clamped and fixed on the clamping surface B by the clamping rod 12, the driving component drives the mounting base 231 to move away from the needle winding component 11 located at the first station a1. When the driving component drives the mounting base 231 to move away from the needle winding component 11 located at the first station a1, driven by the mounting base 231, the rotating shaft 232 first leaves the above-mentioned rolling cutting position (during this process, the compression amount of the second elastic member 223 gradually decreases), so that the cutting knife 233 and the pushing plate 234 move away from the needle winding component 11 located at the first station a1, and then the second pressing roller 221 of the second rolling component 22 is separated from the needle winding component 11 located at the first station a1, that is, the second pressing roller 221 releases the pressing on the passing strip A.

[0080] Of course, in other embodiments, the second roll pressing assembly 22 may not be disposed on the mounting base 231. A driving component may be provided to separately drive the second roll pressing assembly 22 to approach or move away from the coiling needle assembly 11 located at the first station a1, which is not limited herein.

[0081] Please refer to Figures 13 to 17 , in the embodiments of the present application, the coiling needle mechanism 10 further includes a fixed bracket 13, a rotating bracket 14, and a third elastic member 15. The fixed bracket 13 is mounted on the coiling needle assembly 11, and the rotating bracket 14 is rotatably connected to the fixed bracket 13. The material clamping rod 12 is mounted on the rotating bracket 14 to rotate with the rotating bracket 14 between the above-mentioned material clamping position and the releasing position. One end of the third elastic member 15 is connected to the fixed bracket 13, and the other end of the third elastic member 15 is connected to the rotating bracket 14. The third elastic member 15 is used to provide an elastic force for driving the rotating bracket 14 to drive the material clamping rod 12 to rotate to the material clamping position or the releasing position. In this way, when the material clamping rod 12 is in the releasing position, first, the upstream cutting end A1 of the material tape A is blown into the gap between the material clamping rod 12 and the clamping surface B by the airflow blown out from the air outlet 236; then, the two wedge-shaped blocks 2341 on the push plate 234 are inserted into the gap between the material clamping rod 12 and the wall surface C, so that the inclined surface 2342 is used to push against the material clamping rod 12, causing the rotating bracket 14 to drive the material clamping rod 12 to rotate towards the clamping surface B. When the rotating bracket 14 drives the material clamping rod 12 to cross a certain intermediate balance position, the elastic force provided by the third elastic member 15 can drive the rotating bracket 14 to drive the material clamping rod 12 to rotate close to the clamping surface B until the material clamping rod 12 presses and fixes the upstream cutting end A1 of the material tape A on the clamping surface B (i.e., the material clamping rod 12 reaches the material clamping position). Optionally, the third elastic member 15 may be a tension spring.

[0082] It should be noted that, during the process of the rotating bracket 14 driving the material clamping rod 12 to rotate from the release position to the material clamping position, the included angle of the third elastic member 15 relative to the rotating bracket 14 also changes accordingly, so that the angle of the elastic force provided by the third elastic member 15 to the rotating bracket 14 due to being compressed also changes. When the material clamping rod 12 is at any position between the release position and the intermediate balance position, the elastic force provided by the third elastic member 15 to the rotating bracket 14 can drive the rotating bracket 14 to drive the material clamping rod 12 to rotate towards the release position (i.e., rotate away from the clamping surface B). When the material clamping rod 12 is at any position between the intermediate balance position and the material clamping position, the elastic force provided by the third elastic member 15 to the rotating bracket 14 can drive the rotating bracket 14 to drive the material clamping rod 12 to rotate towards the material clamping position (i.e., rotate towards the clamping surface B). In this way, when using the wedge block 2341 on the push plate 234 to push against the material clamping rod 12, it is necessary to ensure that the material clamping rod 12 is pushed from the release position to any position between the intermediate balance position and the material clamping position (i.e., it is necessary to ensure that the material clamping rod 12 is pushed beyond the intermediate balance position), so as to enable the material clamping rod 12 to automatically press against the clamping surface B under the action of the elastic force provided by the third elastic member 15, that is, to realize pressing and fixing the upstream cut end A1 of the strip A on the clamping surface B.

[0083] Specifically, in the embodiment, the fixed bracket 13 is provided with a limiting portion 131 (see Figure 17 ). When the rotating bracket 14 drives the material clamping rod 12 to rotate to the release position, the limiting portion 131 is in a stop fit with the rotating bracket 14 to prevent the rotating bracket 14 from continuing to drive the material clamping rod 12 to rotate away from the clamping surface B, that is, the material clamping rod 12 is limited at the release position by using the limiting portion 131, ensuring that there is a certain width of gap between the material clamping rod 12 and the wall surface C at the release position, so as to ensure that the wedge block 2341 on the push plate 234 can accurately insert into the gap and push against the material clamping rod 12 to trigger.

[0084] Specifically in the embodiment, the winding needle assembly 11 includes a winding needle base 117, a first fixed needle 113, a second fixed needle 114, a first outer needle 111, and a second outer needle 112. The winding needle base 117 can be controllably rotated. One ends of the first fixed needle 113 and the second fixed needle 114 are both installed on the winding needle base 117 and are arranged opposite to each other. The first outer needle 111 is arranged on the first fixed needle 113, and the second outer needle 112 is arranged on the second fixed needle 114, and the above-mentioned slit 110 is formed between the first outer needle 111 and the second outer needle 112. One side surface of the first outer needle 111 facing the second outer needle 112 includes the above-mentioned clamping surface B, and the fixed bracket 13 is installed on the first fixed needle 113 and / or the second fixed needle 114. In this way, the outer side surfaces of the first outer needle 111 and the second outer needle 112 facing away from each other form the outer peripheral surface of the winding needle assembly 11. When the winding needle base 117 rotates, it can drive the first outer needle 111 and the second outer needle 112 to rotate, so as to wind the strip A onto the outer peripheral surface formed by the outer side surfaces of the first outer needle 111 and the second outer needle 112 facing away from each other.

[0085] Furthermore, the first outer needle 111 and the second outer needle 112 can be respectively controllably moved closer to or away from the first fixed needle 113 and the second fixed needle 114 relative to each other, so as to realize the reduction or increase of the radial dimension of the above-mentioned outer peripheral surface. The winding mechanism 10 further includes a reset block 16 installed on the second outer needle 112. During the process of the first outer needle 111 and the second outer needle 112 moving closer to each other, the second outer needle 112 drives the reset block 16 to push against the rotating bracket 14, so that the rotating bracket 14 drives the clamping rod 12 to rotate from the clamping position to the release position, that is, the clamping rod 12 releases the upstream cut end A1 of the strip A, so as to facilitate the unloading of the winding core A2 wound on the first outer needle 111 and the second outer needle 112. In this way, when it is necessary to unload the winding core A2, control the first outer needle 111 and the second outer needle 112 to move closer to each other. On the one hand, it makes the radial dimension of the outer peripheral surface formed by the cooperation of the first outer needle 111 and the second outer needle 112 decrease, so as to facilitate the extraction of the winding needle assembly 11 from the winding core A2; on the other hand, the second outer needle 112 drives the reset block 16 to push against the rotating bracket 14, so that the rotating bracket 14 drives the clamping rod 12 to rotate from the clamping position to the release position, thereby releasing the clamping of the upstream cut end A1 of the strip A, so as to facilitate the extraction of the winding needle assembly 11 from the winding core A2.

[0086] It should be noted that when the second outer needle 112 drives the reset block 16 to push against the rotating bracket 14, it is necessary to ensure that the rotating bracket 14 is pushed to any position between the above-mentioned intermediate balance position and the release position where the clamping rod 12 is driven to rotate. Only when the rotating bracket 14 drives the clamping rod 12 to reach any position between the intermediate balance position and the release position can the rotating bracket 14 automatically rotate to a position where it is stopped and cooperated with the limiting portion 131 under the action of the elastic force provided by the third elastic member 15 (that is, the rotating bracket 14 drives the clamping rod 12 to reach the release position).

[0087] It should be noted that the reset block 16 is not limited to being installed on the second outer needle 112. In other embodiments, the reset block 16 can also be installed on the first outer needle 111, as long as the reset block 16 can drive the rotating bracket 14 to push against it when the first outer needle 111 and the second outer needle 112 move closer to each other, and the rotating bracket 14 can drive the clamping rod 12 to rotate from the clamping position to the release position, which is not limited herein.

[0088] Specifically in the embodiment, the needle winding assembly 11 further includes a first push rod 115, a first slider 118 and a first roller 1191. The first push rod 115 is movably connected to the first fixed needle 113 along the axial direction u of the needle winding assembly 11. The first slider 118 is movably connected to the first fixed needle 113 along the radial direction v of the needle winding assembly 11. The first outer needle 111 is connected to the first slider 118, so that the first outer needle 111 can move along the radial direction v of the needle winding assembly 11 following the first slider 118 (that is, approach or move away from the second outer needle 112). A first strip-shaped groove 1181 is formed on the first slider 118, and the longitudinal extension direction of the first strip-shaped groove 1181 is inclined to both the axial direction u and the radial direction v of the needle winding assembly 11. The first roller 1191 is rotatably connected to the first push rod 115 and is in rolling cooperation with the first strip-shaped groove 1181. Thus, when the first push rod 115 moves along the axial direction u of the needle winding assembly 11 under the action of an external force, the first push rod 115 drives the first roller 1191 to roll along the first strip-shaped groove 1181 on the first slider 118. Since the longitudinal extension direction of the first strip-shaped groove 1181 is inclined to both the axial direction u and the radial direction v of the needle winding assembly 11, the first roller 1191 can drive the first slider 118 to move along the radial direction v of the needle winding assembly 11 when rolling along the first strip-shaped groove 1181 of the first slider 118. Further, the first slider 118 drives the first outer needle 111 to move along the radial direction v of the needle winding assembly 11 relative to the first fixed needle 113, so as to increase or decrease the radial dimension of the outer peripheral surface of the needle winding assembly 11.

[0089] Further, the needle winding assembly 11 further includes a fourth elastic member 1193 (see Figure 16), the fourth elastic member 1193 abuts between the bobbin holder 117 and one end of the first push rod 115 facing the bobbin holder 117, and is used to provide an elastic force that causes the first push rod 115 to have a tendency to move away from the bobbin holder 117. Thus, when the first push rod 115 moves along the axial direction u of the bobbin assembly 11 towards the bobbin holder 117 under the action of an external force, the fourth elastic member 1193 is pressed by the first push rod 115 and is further compressed, and the first push rod 115 drives the first roller 1191 to roll along the first strip-shaped groove 1181 on the first slider 118, thereby driving the first slider 118 to drive the first outer needle 111 to move away from the second outer needle 112 relative to the first fixed needle 113, so that the radial dimension of the outer peripheral surface of the bobbin assembly 11 increases. At this time, the bobbin assembly 11 is used to wind the strip A to form a bobbin A2.

[0090] When the external force acting on the first push rod 115 disappears, the first push rod 115 moves away from the bobbin holder 117 along the axial direction u of the bobbin assembly 11 under the action of the elastic force provided by the fourth elastic member 1193. The first push rod 115 drives the first roller 1191 to roll along the first strip-shaped groove 1181 on the first slider 118, thereby driving the first slider 118 to drive the first outer needle 111 to approach the second outer needle 112 relative to the first fixed needle 113, so that the radial dimension of the outer peripheral surface of the bobbin assembly 11 decreases, facilitating the unloading of the bobbin A2 on the bobbin assembly 11.

[0091] Furthermore, a second strip-shaped groove 1131 is formed on the first fixed needle 113, and the second strip-shaped groove 1131 extends longitudinally along the axial direction u of the bobbin assembly 11. The bobbin assembly 11 further includes a second roller 1192 rotatably connected to the first push rod 115. The second roller 1192 is in rolling cooperation with the second strip-shaped groove 1131. Thus, when the first push rod 115 moves, the first push rod 115 drives the second roller 1192 to roll along the second strip-shaped groove 1131. Since the longitudinal direction of the second strip-shaped groove 1131 is parallel to the axial direction u of the bobbin assembly 11, the movement of the first push rod 115 along the axial direction u of the bobbin assembly 11 can be guided by the second strip-shaped groove 1131.

[0092] Specifically, in the embodiment, the bobbin assembly 11 further includes a second push rod 116, a second slider 1194 (see Figure 16) and a third roller (not shown in the figure). The second push rod 116 is movably connected to the second fixed needle 114 along the axial direction u of the needle winding assembly 11. The second slider 1194 is movably connected to the second fixed needle 114 along the radial direction v of the needle winding assembly 11. The second outer needle 112 is connected to the second slider 1194, so that the second outer needle 112 can move along the radial direction V of the needle winding assembly 11 together with the second slider 1194 (i.e., approach or move away from the first outer needle 112). A third strip-shaped groove (not shown in the figure) is formed in the second slider 1194, and the longitudinal extension direction of the third strip-shaped groove is inclined to both the axial direction u and the radial direction v of the needle winding assembly 11. The third roller is rotatably connected to the second push rod 116 and is in rolling cooperation with the third strip-shaped groove. Thus, when the second push rod 116 moves along the axial direction u of the needle winding assembly 11 under the action of an external force, the second push rod 116 drives the third roller to roll along the third strip-shaped groove on the second slider 1194. Since the longitudinal extension direction of the third strip-shaped groove is inclined to both the axial direction u and the radial direction v of the needle winding assembly 11, the third roller can drive the second slider 1194 to move along the radial direction v of the needle winding assembly 11 when rolling along the third strip-shaped groove on the second slider 1194. Further, the second slider 1194 drives the second outer needle 112 to move relative to the second fixed needle 114 along the radial direction v of the needle winding assembly 11 to increase or decrease the radial dimension of the outer peripheral surface of the needle winding assembly 11.

[0093] Further, the needle winding assembly 11 further includes a fifth elastic member 1195, and the fifth elastic member 1195 abuts against the needle winding base 117 and one end of the second push rod 116 facing the needle winding base 117, and is used to provide an elastic force that makes the second push rod 116 have a tendency to move away from the needle winding base 117. Thus, when the second push rod 116 moves along the axial direction u of the needle winding assembly 11 toward the needle winding base 117 under the action of an external force, the fifth elastic member 1195 is pressed by the second push rod 116 and is further compressed, and the second push rod 116 drives the third roller to roll along the third strip-shaped groove on the second slider 1194, thereby driving the second slider 1194 to drive the second outer needle 112 to move away from the first outer needle 111 relative to the second fixed needle 114, so that the radial dimension of the outer peripheral surface of the needle winding assembly 11 increases. At this time, the needle winding assembly 11 is used to wind the strip A to form the core A2.

[0094] When the external force acting on the second push rod 116 disappears, the second push rod 116 moves away from the needle winding base 117 along the axial direction u of the needle winding assembly 11 under the elastic force provided by the fifth elastic member 1195. The second push rod 116 drives the third roller to roll along the third strip-shaped groove on the second slider 1194, thereby driving the second slider 1194 to drive the second outer needle 112 to approach the first outer needle 111 relative to the second fixed needle 114, so that the radial dimension of the outer peripheral surface of the needle winding assembly 11 decreases, facilitating the discharging of the core A2 on the needle winding assembly 11.

[0095] Further, a fourth strip-shaped groove is formed in the second fixing pin 114, and the fourth strip-shaped groove extends longitudinally along the axial direction u of the winding needle assembly 11. The winding needle assembly 11 further includes a fourth roller rotatably connected to the second push rod 116. The fourth roller is in rolling cooperation with the fourth strip-shaped groove. In this way, when the second push rod 116 moves, the second push rod 116 drives the fourth roller to roll along the fourth strip-shaped groove. Since the longitudinal direction of the fourth strip-shaped groove is parallel to the axial direction u of the winding needle assembly 11, the movement of the second push rod 116 along the axial direction u of the winding needle assembly 11 can be guided by the fourth strip-shaped groove.

[0096] Please continue to refer to Figures 1 to 5 , in the embodiment of the present application, the winding device further includes a turret 30, and the number of the winding needle mechanisms 10 is at least two. The turret 30 is rotatably provided, and the winding needle assemblies 11 of the respective winding needle mechanisms 10 are rotatably connected to the turret 30 through winding needle seats 117. During the rotation of the winding needle assemblies 11 of the respective winding needle mechanisms 10 with the turret 30, they sequentially pass through a first station a1 and a second station a2. When the winding needle assembly 11 located at the first station a1 rotates with the turret 30 to the second station a2, another winding needle assembly 11 rotates with the turret 30 to the first station a1.

[0097] In this way, when the winding of the core A2 on the winding needle assembly 11 located at the first station a1 is completed, first, the material tape A continues to be conveyed downstream. The turret 30 drives the winding needle assembly 11 located at the first station a1 to rotate to the second station a2, and another winding needle assembly 11 rotates with the turret 30 to the first station a1. At this time, the winding needle assembly 11 located at the first station a1 rotates around its own axis, and at the same time, the first roller pressing assembly 21 drives the first pressing roller 211 to press the part of the material tape A upstream of the cutter 233 against the winding needle assembly 11 located at the first station a1, and the second roller pressing assembly 22 drives the second pressing roller 221 to press the part of the material tape A downstream of the cutter 233 against the winding needle assembly 11 located at the first station a1. The rotating shaft 232 moves close to the winding needle assembly 11 located at the first station a1 to the rolling cutting position, and the slit 110 on the winding needle assembly 11 located at the first station a1 rotates to be opposite to the cutter 233 and the pushing plate 234 on the rotating shaft 232. At this time, the rotating shaft 232 drives the cutter 233 to rotate and contact the material tape A, thereby cutting the material tape A (that is, performing rolling cutting on the passing material tape A with the cutter 233). Then, under the action of the airflow blown out by the air outlet 236, the upstream cut end A1 of the material tape A is blown into the slit 110 of the winding needle assembly 11 located at the first station a1, and then under the pushing action of the pushing plate 234, the clamping rod 12 rotates from the loosening position to the clamping position to clamp and fix the upstream cut end A1 of the material tape A entering the slit 110 on the clamping surface B.

[0098] After the upstream cutting end A1 of the strip A is blown into the gap 110 of the winding needle assembly 11 at the first station a1, under the driving action of the driving assembly, the rotating shaft 232 gradually moves away from the winding needle assembly 11 at the first station a1, so that the cutting knife 233 and the push plate 234 on the rotating shaft 232 move away from the winding needle assembly 11 at the first station a1 to play a role in avoiding the winding needle assembly 11. Then, the first rolling assembly 21 drives the first roller 211 away from the winding needle assembly 11 at the first station a1. Then, after the winding needle assembly 11 at the first station a1 winds the strip A around its outer peripheral surface for at least one turn, the second rolling assembly 22 drives its second roller 221 away from the winding needle assembly 11 at the first station a1. During this process, the winding needle assembly 11 at the first station a1 continuously rotates to wind the strip A around its outer peripheral surface to form a core A2.

[0099] After the strip A is cut by the cutting knife 233, the winding needle assembly 11 at the second station a2 continues to wind until all the cut strip A is wound around its outer peripheral surface, and then operations such as pasting the end glue and / or discharging the core A2 on the winding needle assembly 11 at the second station a2 are performed.

[0100] It should be noted that in some other embodiments, the winding needle assemblies 11 of the respective winding needle mechanisms 10 may also pass through the third station a3 during the rotation with the turret 30. That is to say, during the rotation of the winding needle assemblies 11 of the respective winding needle mechanisms 10 with the turret 30, they sequentially pass through the first station a1, the second station a2, and the third station a3. When the winding needle assembly 11 is at the first station a1, it winds the upstream conveyed strip A to form a core A2. When the winding needle assembly 11 is at the second station a2, the end glue is pasted on the core A2 on the winding needle assembly 11 to prevent the core A2 on the winding needle assembly 11 from loosening. When the winding needle assembly 11 is at the third station a3, the core A2 on the winding needle assembly 11 is discharged. The winding operation steps of the winding equipment in the embodiment where the winding needle assembly 11 passes through three stations (i.e., the first station a1, the second station a2, and the third station a3) are similar to those in the embodiment where the winding needle assembly 11 passes through two stations (i.e., the first station a1 and the second station a2), so they will not be elaborated here.

[0101] It should be noted that the above-described winding operation steps are only taken as one implementation manner. Of course, in other implementation manners, other winding operation steps may also be adopted, as long as the winding and forming of the core A2 can be achieved, which is not limited here.

[0102] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0103] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A rolling cutting trigger mechanism, characterized in that, Comprising: A roller pressing assembly for pressing a strip against a winding needle assembly; and A rotary cutting trigger assembly including a rotating shaft, a cutting knife and a push plate. The cutting knife is arranged on the rotating shaft. The push plate has a blowing port. The rotating shaft can rotate around its own axis to drive the cutting knife to rotate to face the winding needle assembly. Wherein, when the rotating shaft drives the cutting knife to rotate to face the winding needle assembly, the cutting knife cuts the strip passing through, the blowing port blows the upstream cutting end formed after the strip is cut into the winding needle assembly, and the push plate can be controllably moved into the winding needle assembly and push the clamping rod in the winding needle assembly to clamp the upstream cutting end of the strip.

2. The roll-cutting triggering mechanism according to claim 1, wherein, The push plate is arranged on the rotating shaft.

3. The roll-cutting trigger mechanism according to claim 2, wherein The rotary cutting trigger assembly further includes a mounting seat and a cam. The rotating shaft is rotatably connected to the mounting seat. The cutting knife is fixedly connected to the rotating shaft. The push plate is movably connected to the rotating shaft. The cam is sleeved on the rotating shaft and fixedly connected to the mounting seat. The cam is in transmission connection with the push plate to drive the push plate to approach or move away from the winding needle assembly relative to the rotating shaft during the rotation of the push plate following the rotating shaft.

4. The roll-cut triggering mechanism according to claim 3, characterized in that, The cam has a track groove, and a follower roller is mounted on the push plate. The follower roller is in rolling fit with the track groove. During the rotation of the rotating shaft driving the push plate, the follower roller rolls along the track groove and drives the push plate to approach or move away from the winding needle assembly relative to the rotating shaft under the guiding action of the track groove.

5. The roll-cutting trigger mechanism according to claim 4, characterized in that, The push plate is mounted with follower rollers at both ends in the direction parallel to the axial direction of the rotating shaft. There are two cams. The two follower rollers are respectively in rolling fit with the track grooves on the two cams.

6. The roll cutting trigger mechanism according to claim 1, characterized in that, The rotary cutting trigger assembly further includes a trigger driving member mounted on the rotating shaft. The push plate is movably connected to the rotating shaft. The driving end of the trigger driving member is connected to the push plate so that the trigger driving member can drive the push plate to approach or move away from the winding needle assembly relative to the rotating shaft.

7. The roll-cutting trigger mechanism according to claim 3 or 6, characterized in that The rotary cutting trigger assembly further includes a guide rod. One end of the guide rod is fixedly connected to the rotating shaft, and the other end of the guide rod is fixedly connected to the cutting knife. The push plate is provided with a guiding hole, and the guide rod is arranged through the guiding hole so that the push plate can move along the guide rod.

8. The roll-cutting trigger mechanism according to claim 1, characterized in that, One end of the push plate close to the winding needle assembly has a wedge block. The wedge block has an inclined surface inclined in the moving direction of the push plate. When the push plate moves into the winding needle assembly, the push plate pushes the clamping rod in the winding needle assembly through the inclined surface to convert the moving motion of the push plate into the clamping motion of the clamping rod in the winding needle assembly to clamp the upstream cutting end of the strip.

9. The roll-cutting trigger mechanism according to claim 8, characterized in that, The number of the wedge blocks is two. The two wedge blocks are respectively located at both ends of the push plate in the direction parallel to the axial direction of the rotating shaft. The cutting knife is located between the two wedge blocks.

10. The roll-cutting triggering mechanism according to claim 1, characterized in that, The roll pressing assembly includes a first roll pressing assembly, the first roll pressing assembly having a first pressing roll rotatable about its own axis, and the first roll pressing assembly being controllably capable of driving the first pressing roll to press a portion of the strip upstream of the cutter onto the coiling needle assembly.

11. The roll-cutting triggering mechanism according to claim 10, wherein The roll pressing assembly further includes a second roll pressing assembly, the second roll pressing assembly having a second pressing roll rotatable about its own axis, and the second roll pressing assembly being controllably capable of driving the second pressing roll to press a portion of the strip downstream of the cutter onto the coiling needle assembly.

12. The roll-cutting trigger mechanism according to claim 11, characterized in that, The rotary cutting trigger assembly further includes a mounting seat, the rotating shaft being rotatably connected to the mounting seat; the rotary cutting trigger mechanism further includes a driving assembly, the mounting seat being mounted on the driving end of the driving assembly so that the driving assembly can drive the mounting seat to approach or move away from the coiling needle assembly; The first roll pressing assembly and / or the second roll pressing assembly is mounted on the mounting seat.

13. A winding device, characterized in that, It includes the rotary cutting trigger mechanism according to any one of claims 1 to 12.

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