Winding equipment

Abstract

The invention relates to winding equipment. The winding equipment comprises a winding needle mechanism, the winding needle mechanism comprises a winding needle assembly and a material clamping rod, the winding needle assembly is provided with a clamping seam and a clamping face serving as one side wall of the clamping seam, the winding needle assembly can be controlled to rotate, and the material clamping rod is arranged in the clamping seam and can be operably switched between a material clamping position and a loosening position; the hobbing trigger mechanism comprises a rolling assembly and a hobbing trigger assembly, the rolling assembly is used for pressing the material belt to the winding needle assembly in an abutting mode, the hobbing trigger assembly comprises a rotating shaft, a cutter and a push plate, the push plate is provided with an air blowing opening, the cutter is arranged on the rotating shaft, and the rotating shaft can rotate around the axis of the rotating shaft; when the rotating shaft drives the cutter to rotate to be opposite to the crack in the winding needle, 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 gap between the material clamping rod and the clamping face, and the material clamping rod is switched to the material clamping position from the loosening position.

Description

Technical Field

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

[0002] The battery cell is an important component of the battery and can be made by winding each layer of material strip (for example, four layers of material strips including a separator, an anode electrode sheet, a separator and a cathode electrode sheet).

[0003] In the prior art, each layer of material tape is brought together by the film-joining mechanism and then enters the winding needle located in the first station for winding. After the winding needle located in the first station winds one battery cell, it switches to the second station, and the other winding needle switches to the first station. At this time, after each layer of material tape is brought together by the film-joining mechanism and passes through the first station, the winding needle located in the first station extends from the turret to complete the tape threading (that is, the material tape is inserted into the slit of the winding needle). Then, the inner clamping needle in the winding needle clamps the material tape, and then the cutting knife located between the first station and the second station cuts the material tape. Then, the winding needle located in the first station starts to wind the next battery cell. In summary, the action process of the winding operation in the prior art is complicated, which leads to a complex structure of the winding equipment and low production efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a winding device that improves the above defects in order to solve the problem that the winding operation process in the prior art is complicated, resulting in a complex structure of the winding device and low production efficiency.

[0005] A winding device, comprising:

[0006] A winding needle mechanism, comprising a winding needle assembly and a clamping rod, wherein the winding needle assembly has a clamping gap and a clamping surface as a side wall of the clamping gap, the winding needle assembly can be controlled to rotate to wind the material strip, and the clamping rod is arranged in the clamping gap and can be operated to switch between a clamping position abutting against the clamping surface and a release position separated from the clamping surface; and

[0007] The rolling and cutting trigger mechanism comprises a rolling and cutting triggering assembly, wherein the rolling and cutting triggering assembly is used to press the material strip against the winding needle assembly, and the rolling and cutting triggering assembly comprises a rotating shaft, a cutter and a push plate, wherein the push plate has an air blowing port, and the cutter is arranged on the rotating shaft, and the rotating shaft can rotate around its own axis to drive the cutter to rotate to be opposite to the clamping gap on the winding needle assembly;

[0008] Among them, when the rotating shaft drives the cutter to rotate to be opposite to the gap on the winding needle assembly, the cutter cuts off the material strip passing through, and the blowing port blows the upstream cut end formed after the material strip is cut into the gap between the clamping rod and the clamping surface, and the clamping rod switches from the release position to the clamping position.

[0009] In one of the embodiments, when the rotating shaft rotates around its own axis, it can drive the cutter to roll-cut the passing material strip at the gap on the winding needle assembly.

[0010] In one embodiment, the push plate can be moved into the clamping gap in a controlled manner to push the clamping rod from the release position to the clamping position.

[0011] In one embodiment, the push plate is arranged on the rotating shaft.

[0012] In one embodiment, the rolling cutting trigger assembly further includes a mounting seat and a cam, the rotating shaft is rotatably connected to the mounting seat, the cutter is fixedly connected to the rotating shaft, the push plate is movably connected to the rotating shaft, and the cam is sleeved on the rotating shaft and fixedly connected to the mounting seat;

[0013] The cam is in driving connection with the push plate, so as to drive the push plate to approach or move away from the winding needle assembly relative to the rotating shaft when the push plate rotates following the rotating shaft.

[0014] In one embodiment, the cam has a track groove, and a follower roller is mounted on the push plate, and the follower roller rolls in the track groove;

[0015] When the rotating shaft drives 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 winding needle assembly relative to the rotating shaft under the guidance of the track groove.

[0016] In one embodiment, the rolling cutting trigger assembly also includes a trigger driving member installed on the rotating shaft, the push plate is movably connected to the rotating shaft, and 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 closer to or away from the winding needle assembly relative to the rotating shaft.

[0017] In one of the embodiments, the rolling cutting trigger assembly also includes a guide rod, one end of which is fixedly connected to the rotating shaft, and the other end of which is fixedly connected to the cutter, and the push plate is provided with a guide hole, and the guide rod is arranged to pass through the guide hole so that the push plate can move along the guide rod.

[0018] In one embodiment, the push plate has a wedge block at one end close to the winding needle assembly, and the wedge block has an inclined surface inclined to the moving direction of the push plate. When the push plate moves into the gap of the winding needle, the push plate pushes the clamping rod through the inclined surface to convert the moving motion of the push plate into the movement of the clamping rod close to the clamping surface.

[0019] In one of the embodiments, the winding needle assembly also has a wall surface serving as the other side wall of the gap, and the wall surface and the clamping surface are arranged opposite to each other; when the clamping rod is in the released position, there is a gap between the clamping rod and the wall surface, and the gap is used for the wedge block to enter.

[0020] In one embodiment, the rolling assembly includes a first rolling assembly having a first pressing roller rotatable around its own axis, and the first rolling assembly can controllably drive the first pressing roller to press a portion of the material strip located upstream of the cutter against the winding needle assembly.

[0021] In one embodiment, the rolling assembly also includes a second rolling assembly, which has a second pressing roller rotatable around its own axis, and the second rolling assembly can controllably drive the second pressing roller to press the portion of the material strip located downstream of the cutter onto the winding needle assembly.

[0022] In one embodiment, the rolling trigger assembly further includes a mounting seat, the rotating shaft is rotatably connected to the mounting seat, and the rolling trigger mechanism further includes a driving assembly, the mounting seat is installed at the driving end of the driving assembly, so that the driving assembly can drive the mounting seat to approach or move away from the winding needle assembly;

[0023] The first rolling assembly and / or the second rolling assembly is mounted on the mounting seat.

[0024] In one embodiment, the needle winding mechanism further comprises a fixed bracket, a rotating bracket and a third elastic member, wherein the fixed bracket is mounted on the needle winding assembly, the rotating bracket is rotatably connected to the fixed bracket, and the clamping rod is mounted on the rotating bracket to rotate with the rotating bracket between the clamping position and the releasing position;

[0025] One end of the third elastic member is connected to the fixed bracket, and the other end of the third elastic member is connected to the rotating bracket. The second elastic member is used to provide elastic force to drive the rotating bracket to drive the clamping rod to rotate to the clamping position or the release position.

[0026] In one of the embodiments, the fixed bracket has a limiting portion, and when the rotating bracket drives the clamping rod to rotate to the release position, the limiting portion cooperates with the rotating bracket stopper to prevent the rotating bracket from driving the clamping rod to rotate in a direction away from the clamping surface.

[0027] In one embodiment, the needle winding assembly includes a needle winding seat, a first fixed needle, a second fixed needle, a first outer needle and a second outer needle, the needle winding seat can be controlled to rotate, one end of the first fixed needle and the second fixed needle are both mounted on the needle winding seat and arranged opposite to each other; the first outer needle is arranged on the first fixed needle, the second outer needle is arranged on the second fixed needle, and the first outer needle and the second outer needle form the gap, the side surface of the first outer needle facing the second outer needle includes the clamping surface, and the fixing bracket is mounted on the first fixed needle and / or the second fixed needle

[0028] In one embodiment, the first outer needle and the second outer needle can be controlled to move closer to or farther away from each other relative to the first fixing needle and the second fixing needle;

[0029] The needle winding mechanism also includes a reset block installed on the first outer needle or the second outer needle. When the first outer needle and the second outer needle approach each other, the first outer needle or the second outer needle drives the reset block to push the rotating bracket, so that the rotating bracket drives the clamping rod to rotate from the clamping position to the release position.

[0030] When the winding device is actually used, the material strip is conveyed downward at a certain speed and passes through the first station. The winding needle assembly reaches the first station and rotates around its own axis. At this time, the clamping rod in the gap of the winding needle assembly located at the first station is in a loose position. At the same time, the roller assembly presses the material strip against the winding needle assembly located at the first station, and the rotating shaft drives the cutter to rotate. When the cutter rotates along the rotating shaft to the gap on the winding needle assembly located at the first station, the cutter contacts the passing material strip and cuts it off. The air outlet on the push plate blows air to the upstream cut end formed after the material strip is cut off until the upstream cut end of the material strip is blown into the gap between the clamping rod and the clamping surface. At this time, the clamping rod is controlled to move toward the clamping surface until the clamping rod clamps the upstream cut end of the material strip on the clamping surface (that is, the clamping rod switches from the loose position to the clamping position). The winding needle assembly located at the first station continues to rotate, so that the material strip is wound onto the winding needle assembly to form a winding core.

[0031] In this way, without stopping the material strip from being conveyed downstream, the material strip is cut (i.e., rolling cut) by the process of rotating the cutter driven by the rotating shaft, and the upstream cut end of the material strip is blown into the gap of the winding needle by the air flow from the blowing port, and the upstream cut end of the material strip is clamped and fixed on the clamping surface by the clamping rod. During this process, the winding needle assembly keeps rotating, which greatly improves the production efficiency on the one hand, and eliminates the needle threading and film combining actions on the other hand, greatly simplifying the structure of the winding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figures 1 to 5It is a structural schematic diagram of the operation process of the winding device in one embodiment of the present invention;

[0033] Figure 6 for Figure 4 A partial enlarged view of the winding device at the first station is shown;

[0034] Figure 7 for Figure 1 The structural schematic diagram of the rolling cutting trigger mechanism of the winding device shown;

[0035] Figure 8 for Figure 7 A schematic structural diagram of a rolling trigger assembly of a rolling trigger mechanism shown;

[0036] Fig. 9 for Figure 8 A front view of the rolling cut trigger assembly shown;

[0037] Fig.10 for Fig. 9 The structure schematic diagram of the rolling trigger assembly after being cut along the AA direction;

[0038] Fig.11 for Fig. 9 A schematic structural diagram of a push plate of a rolling cut trigger assembly shown;

[0039] Fig.12 for Fig. 9 A schematic diagram of the structure of the guide rod and the cutter of the rolling cutting trigger assembly shown;

[0040] Fig.13 for Figure 1 A schematic structural diagram of a winding needle mechanism of a winding device shown;

[0041] Fig.14 for Fig.13 The structure diagram of the needle winding mechanism shown in another viewing angle (the first outer needle is omitted);

[0042] Fig.15 for Fig.14 The structure diagram of the needle winding mechanism shown in another viewing angle (the first outer needle is omitted);

[0043] Fig.16 for Fig.13 A cross-sectional view of the needle winding mechanism shown (with the first outer needle omitted);

[0044] Fig.17 for Fig.13 The assembly drawing of the clamping rod, fixed bracket and rotating bracket of the needle winding mechanism shown;

[0045] Fig.18 for Fig.13 The cross-sectional structural diagram of the needle winding mechanism is shown. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0052] See also Figures 1 to 5 One embodiment of the present invention provides a winding device, including a winding needle mechanism 10 and a rolling trigger mechanism 20. The winding needle mechanism 10 includes a winding needle assembly 11 located at a first station a1 and a clamping rod 12 disposed on the winding needle assembly 11. The winding needle assembly 11 has a slit 110 into which the feed tape A enters and a clamping surface B (see FIG. 1 ) as a side wall of the slit 110. Figure 6 ). The winding needle assembly 11 can be rotated in a controlled manner to wind the material strip A. The clamping rod 12 is located in the gap 110 of the winding needle assembly 11, and can be operated to switch between the clamping position and the loosening position. When the clamping rod 12 is located in the clamping position, the clamping rod 12 abuts against the above-mentioned clamping surface B, thereby clamping the material strip A entering the gap 110 between the clamping rod 12 and the clamping surface B, so that the winding needle assembly 11 can drive the material strip A to be wound on the winding needle assembly 11 when it rotates. When the clamping rod 12 is located in the loosening 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 material strip A between the clamping rod 12 and the clamping surface B is loosened or the material strip A is convenient to enter the gap between the clamping rod 12 and the clamping surface B.

[0053] See also Figures 6 to 10The rolling trigger mechanism 20 includes a rolling assembly 24 and a rolling trigger assembly 23. The rolling assembly 24 is used to press the material strip A against the winding needle assembly 11 located at the first station a1. The rolling trigger assembly 23 includes a rotating shaft 232, a cutter 233 and a push plate 234. The cutter 233 and the push plate 234 are both arranged on the rotating shaft 232, and the push plate 234 has a blowing port 236. The rotating shaft 232 can rotate around its own axis to drive the cutter 233 and the push plate 234 to rotate to face the gap 110 of the winding needle assembly 11 located at the first station a1. Among them, when the rotating shaft 232 drives the cutter 233 and the push plate 234 to rotate to be opposite to the gap 110 of the winding needle assembly 11 located at the first workstation a1, the cutter 233 cuts off the material strip A passing through, and the blowing port 236 blows the upstream cut end A1 of the material strip A into the gap between the clamping rod 12 and the clamping surface B. The push plate 234 can be moved to the gap 110 relative to the rotating shaft 232 in a controlled manner, 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 material strip A on the clamping surface B.

[0054] Please see again Figures 1 to 5 As shown, in actual use of the winding device, the material strip A is fed downward at a certain speed and passes through the first station a1. The winding needle assembly 11 arrives at the first station a1 and rotates around its own axis. At this time, the clamping rod 12 in the clamping gap 110 of the winding needle assembly 11 at the first station a1 is in a loose position. At the same time, the roller pressing assembly 24 presses the material strip A against the winding needle assembly 11 at the first station a1, and the rotating shaft 232 drives the cutter 233 and the push plate 234 to rotate (see Figure 1 to Figure 2 ). When the cutter 233 and the push plate 234 follow the rotating shaft 232 to rotate to the gap 110 on the winding needle assembly 11 located at the first station a1, the cutter 233 contacts the passing material strip A and cuts it, and the blowing port 236 on the push plate 234 blows air to the upstream cut end A1 formed after the material strip A is cut, until the upstream cut end A1 of the material strip A is blown into the gap between the clamping rod 12 and the clamping surface B. At this time, the push plate 234 is controlled to move a certain distance relative to the rotating shaft 232 toward the gap 110 of the winding 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 winding needle assembly 11 located at the first station a1, so that the clamping rod 12 moves toward 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 material strip A on the clamping surface B (see Figures 3 to 5). Then, the push plate 234 is controlled to withdraw from the gap 110 of the winding needle assembly 11 located at the first station a1, and the winding needle assembly 11 located at the first station a1 continues to rotate, so that the material strip A is wound onto the winding needle assembly 11 to form the winding core A2. That is to say, during the process of the cutter 233 cutting the passing material strip A, the push plate 234 entering the gap 110 and pushing the clamping rod 12, and the push plate 234 withdrawing from the gap 110, the rotating shaft 232 keeps rotating to drive the cutter 233 and the push plate 234 to rotate, and at the same time, the winding needle assembly 11 also keeps rotating, and the material strip A also keeps being transported downstream.

[0055] In this way, when the material strip A does not stop being conveyed downstream, the material strip A is cut (i.e., rolling cut) while the cutter 233 is rotated by the rotating shaft 232, and the upstream cut end A1 of the material strip A is blown into the gap 110 of the winding needle assembly 11 by the air flow blown out of the blowing port 236, and the clamping rod 12 is triggered by the push plate 234 so that the clamping rod 12 clamps the upstream cut end A1 of the material strip A on the clamping surface B. During this process, the winding needle assembly 11 keeps rotating and the material strip A also keeps being conveyed downstream. On the one hand, the production efficiency is greatly improved, and on the other hand, the needle threading and film combining actions are eliminated, which greatly simplifies the structure of the winding equipment.

[0056] It should be noted that the push plate 234 is not limited to triggering the clamping rod 12. In other embodiments, a driving member can be provided on the winding needle assembly 11 to provide a driving force for driving the clamping rod 12 to move from the release position to the clamping position. In this case, the push plate 234 only functions to blow the upstream cut end A1 of the material strip A into between the clamping rod 12 and the clamping surface B using the blowing port 236 thereon.

[0057] It should also be noted that the push plate 234 is not limited to being installed on the rotating shaft 232. In other embodiments, the push plate 234 can also be set on other moving parts. As long as it can drive the push plate 234 to approach or move away from the winding needle assembly 11 located at the first workstation a1, and push the clamping rod 12 to move from the release position to the clamping position, there is no limitation here.

[0058] For ease of understanding, the following description takes the implementation example in which the push plate 234 is installed on the rotating shaft 232, and the push plate 234 pushes and triggers the clamping rod 12 during the process of following the rotation of the rotating shaft 232, so that the clamping rod 12 switches from the release position to the clamping position.

[0059] Please continue to see Figures 6 to 10It can be understood that after the cutter 233 cuts the material strip A passing through, an upstream cut end A1 located upstream and a downstream cut end located downstream are formed at the fracture of the material strip A. The downstream cut end is separated from the upstream cut end A1 as the downstream material strip A is transported downstream. Under the pressure of the roller assembly 24 on the material strip A, the upstream cut end A1 remains located at the gap 110 of the winding needle assembly 11, and is then blown by the airflow blown out of the air outlet 236 into the gap 110 of the winding needle assembly 11 located at the first station a1 and is clamped and fixed on the clamping surface B by the clamping rod 12, so that the winding needle assembly 11 located at the first station a1 can wind the material strip A.

[0060] In an embodiment of the present invention, the rolling 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, the rotating shaft 232 can rotate around its own axis relative to the mounting seat 231. The cutter 233 is fixedly connected to the rotating shaft 232, and the push plate 234 is movably connected to the rotating shaft 232, that is, the cutter 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 needle winding assembly 11 located at the first station a1. The cam 235 is sleeved on the rotating shaft 232 and fixedly connected to the mounting seat 231, so that when the rotating shaft 232 rotates, the cam 235 does not rotate together with the rotating shaft 232. The cam 235 is in transmission connection with the push plate 234, so that the push plate 234 is driven to move closer to or farther from the winding needle assembly 11 located at the first station a1 relative to the rotating shaft 232 when the push plate 234 rotates following 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 rotates 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 clamping gap 110 of the winding needle assembly 11 located at the first station a1, and then 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 cut end A1 of the material strip A on the clamping surface B.

[0061] It should be noted that the cam 235 is used to drive the push plate 234 to make a rotational motion along with the rotating shaft 232 while also making a linear motion relative to the rotating shaft 232, thereby enabling the push plate 234 to trigger the clamping rod 12 in the gap 110 of the winding needle assembly 11. There is no need to configure an additional drive component to drive the push plate 234 to move relative to the rotating shaft 232, which greatly simplifies the structure of the rolling trigger assembly 23, reduces the space required for the rolling trigger assembly 23, and reduces the difficulty of spatial layout of the various components of the rolling trigger assembly 23.

[0062] Optionally, the cam 235 has a track groove 2351, and the push plate 234 is provided with a follower roller 238 (see Fig. 9 ), the follower roller 238 rolls in the track groove 2351 of the cam 235. When the rotating shaft 232 drives 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 guidance of the track groove 2351, the follower roller 238 drives the push plate 234 to approach or move away from the winding needle 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 winding needle assembly 11 located at the first station a1, so that the push plate 234 pushes and triggers the clamping rod 12 in the gap 110 of the winding needle assembly 11, ensuring that the clamping rod 12 clamps and fixes the upstream cut end A1 of the material strip A on the clamping surface B.

[0063] Furthermore, 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 rollingly matched with the track grooves 2351 on the two cams 235, so that the two cams 235 are used to guide the follower rollers 238 at both ends of the push plate 234, so that the follower rollers 238 at both ends of the push plate 234 simultaneously drive the push plate 234 to move relative to the rotating shaft 232, so that the movement of the push plate 234 relative to the rotating shaft 232 is more stable and reliable, ensuring that the triggering of the clamping rod 12 is more accurate and reliable.

[0064] It should be noted that the cam structure is not limited to the cam 235 with the track groove 2351 and the follower roller 238. Other cam structures can also be used as long as the push plate 234 can be driven to enter or exit the gap 110 when the push plate 234 follows the rotating shaft 232 to rotate relative to the gap 110 of the winding needle assembly 11 located at the first station a1, thereby realizing the push triggering of the clamping rod 12. No limitation is made here.

[0065] Specifically in the embodiment, the rolling trigger assembly 23 also includes a rotary drive member 237 and a transmission assembly (not shown). The rotary drive member 237 is mounted on the mounting seat 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, the rotary drive member 237 can drive the rotating shaft 232 to rotate. Optionally, the rotary drive member 237 can be a motor.

[0066] Optionally, the transmission assembly includes a driving wheel 2371, a driven wheel 2372 and a transmission belt 2373. The driving wheel 2371 is installed on the output shaft of the rotating driving member 237, so that the rotating driving member 237 can drive the driving wheel 2371 to rotate. The driven wheel 2372 is installed on the rotating shaft 232, so 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, the driven wheel 2372 can be driven to rotate through the transmission belt 2373. In this way, when it is necessary to drive the rotating shaft 232 to rotate, the rotating 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 the belt transmission structure, and in other embodiments, a gear transmission structure may also be used, which is not limited here.

[0067] It should also be noted that the cam transmission structure formed by the cam 235 and the follower roller 238 is not limited to realize the movement of the push plate 234 relative to the rotating shaft 232. In other embodiments, the push plate 234 can also be powered by an additional drive member. Specifically, the rolling trigger assembly 23 also includes a trigger drive 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 drive member is connected to the push plate 234, so that the trigger drive member can drive the push plate 234 to move closer to or away from the winding needle assembly 11 located at the first station a1 relative to the rotating shaft 232. Optionally, the trigger drive member can be a cylinder.

[0068] See also Figures 9 to 12 Optionally, the rolling 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 cutter 233, that is, the cutter 233 is fixedly connected to the rotating shaft 232 through the guide rod 239. A guide hole 2343 is provided on the push plate 234, and the guide rod 239 penetrates the guide hole 2343 on the push plate 234 so that the push plate 234 can move along the guide rod 239. In this way, the guide rod 239 is used to realize the assembly of the cutter 233 and the push plate 234 with the rotating shaft 232, so that the cutter 233 and the rotating shaft 232 are relatively fixed, and the push plate 234 can move a certain distance relative to the rotating shaft 232. The guide rod 239 also plays a role in guiding the movement of the push plate 234 relative to the rotating shaft 232, so that the triggering action of the push plate 234 on the clamping rod 12 is more stable and reliable.

[0069] Optionally, two or more guide rods 239 may be provided, and each guide rod 239 is arranged at intervals along the axial direction of the rotating shaft 232. The push plate 234 is provided with a plurality of guide holes 2343 corresponding to each guide rod 239, and each guide rod 239 is arranged through the corresponding guide hole 2343. The cutter 233 is fixedly connected to one end of each guide rod 239 away from the rotating shaft 232. In this way, the push plate 234 is guided by two or more guide rods 239, so that the triggering action of the push plate 234 on the clamping rod 12 is further made more stable and reliable.

[0070] In the embodiment of the present application, the push plate 234 has a wedge block 2341 at one end close to the winding needle assembly 11 located at the first station a1. The wedge block 2341 has an inclined surface 2342 inclined to the moving direction of the push plate 234 relative to the rotating shaft 232, that is, the inclined surface 2342 is inclined to the axial direction of the guide rod 239. When the push plate 234 moves relative to the rotating shaft 232 into the clamping gap 110 of the winding needle assembly 11 located at the first station a1, the push plate 234 pushes the clamping rod 12 through the inclined surface 2342, so as to convert the moving movement of the push plate 234 into the movement of the clamping rod 12 close to the clamping surface B, so that the clamping rod 12 clamps and fixes the upstream cut end A1 of the material strip A on the clamping surface B.

[0071] Furthermore, there are two wedge blocks 2341, which are located at both ends of the push plate 234 in a direction parallel to the axial direction of the rotating shaft 232, and the cutter 233 is located between the two wedge blocks 2341. In this way, the material strip A passes through the space between the two wedge blocks 2341, so that the cutter 233 can cut the material strip A passing through when the rotating shaft 232 rotates, thereby preventing the wedge blocks 2341 from contacting the material strip A and causing the cutter 233 to be unable to roll and cut the material strip A. In addition, the two wedge blocks 2341 are used to push and trigger the clamping rod 12 in the slit 110 at the same time, ensuring that the clamping rod 12 is accurately triggered and the upstream cut end A1 of the material strip A is clamped and fixed on the clamping surface B.

[0072] Specifically in the embodiment, the winding needle assembly 11 also has a wall surface C as the other side wall of the gap 110, and the wall surface C is arranged opposite to the clamping surface B. When the clamping rod 12 is in the loose position, there is a gap between the clamping rod 12 and the wall surface C, and the gap is used for the wedge block 2341 to enter. In this way, when the upstream cut end A1 of the material strip A is blown into between the clamping rod 12 and the clamping surface B, the push plate 234 moves close to the winding 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 clamping rod 12 and the wall surface C, so that the wedge block 2341 pushes the clamping rod 12 through its own inclined surface 2342, so that the clamping rod 12 moves toward the clamping surface B until the upstream cut end A1 of the material strip A is clamped on the clamping surface B. Thus, the setting of the gap enables the wedge block 2341 on the push plate 234 to accurately push the clamping rod 12, ensuring that the clamping rod 12 is accurately and timely switched from the release position to the clamping position.

[0073] Specifically in the embodiment, the clamping rod 12 can be rotated from the release position to the clamping position under the pushing action of the wedge block 2341 on the push plate 234. During the pushing action, the inclined surface 2342 on the wedge block 2341 contacts the clamping rod 12. The surface of the clamping rod 12 used to contact the inclined surface 2342 on the wedge block 2341 of the push plate 234 is an arc surface, so that the surface contact between the wedge block 2341 and the clamping rod 12 is changed into a line contact, which greatly reduces the friction between the wedge block 2341 and the clamping rod 12, so that the pushing action of the wedge block 2341 on the clamping rod 12 is smoother, thereby preventing the wedge block 2341 from being stuck in the gap between the clamping rod 12 and the wall surface C.

[0074] Please continue to see Figure 6 and Figure 7 As shown, in the embodiment of the present application, the rolling assembly 24 includes a first rolling assembly 21 and a second rolling assembly 22. The first rolling assembly 21 has a first pressing roller 211 that can rotate around its own axis. The first rolling assembly 21 can controllably drive the first pressing roller 211 to press the portion of the material strip A located upstream of the cutter 233 onto the winding needle assembly 11 located at the first station a1. The second rolling assembly 22 has a second pressing roller 221 that can rotate around its own axis. The second rolling assembly 22 can controllably drive the second pressing roller 221 to press the portion of the material strip A located downstream of the cutter 233 onto the winding needle assembly 11 located at the first station a1. In this way, before the cutter 233 rolls the material strip A, the material strip A passing through the upstream and downstream of the cutter 233 is pressed onto the winding needle assembly 11 located at the first station a1, thereby ensuring that the cutter 233 can accurately cut the passing material strip A, which is conducive to improving the rolling quality.

[0075] It can be understood that since the first pressing roller 211 of the first rolling assembly 21 and the second pressing roller 221 of the second rolling assembly 22 are both rotatable around their own axes, when the first pressing roller 211 and the second pressing roller 221 respectively press the passing material strip A onto the winding needle assembly 11 located at the first station a1, under the traction action of the downstream, the material strip A can pass between the first pressing roller 211 and the winding needle assembly 11 located at the first station a1 and between the second pressing roller 221 and the winding needle assembly 11 located at the first station a1 and be conveyed downstream. That is to say, during the process of the rotating shaft 232 driving the cutter 233 to perform rolling cutting, the cutter 233 rotates along with the rotating shaft 232, the winding needle assembly 11 located at the first station a1 also rotates, and the material strip A between the cutter 233 and the winding needle assembly 11 is also transported downstream, and the rotation speed of the rotating shaft 232, the rotation speed of the winding needle assembly 11 and the downstream conveying speed of the material strip A are matched to ensure that the speeds of the three are consistent at the moment the cutter 233 cuts off the material strip A, so that the cutter 233 can accurately and quickly cut off the material strip A, and the airflow blown out of the blowing port 236 can also accurately blow the upstream cut end A1 of the material strip A into the gap 110 of the winding needle assembly 11 located at the first station a1.

[0076] Specifically in the embodiment, the rolling cutting trigger mechanism 20 also includes a driving assembly, and the mounting seat 231 is installed at the driving end of the driving assembly, so that the driving assembly can drive the mounting seat 231 to approach or move away from the winding needle assembly 11 located at the first station a1, thereby driving the rotating shaft 232 and the cutter 233 and the push plate 234 on the rotating shaft 232 to approach or move away from the winding needle assembly 11 located at the first station a1. In this way, when the driving assembly drives the mounting seat 231 to move close to the winding needle assembly 11 located at the first station a1, the mounting seat 231 can drive the rotating shaft 232 to move to a rolling cutting position closer to the winding needle assembly 11 located at the first station a1, so that at this time, the cutter 233 on the rotating shaft 232 can roll-cut the passing material strip A, and the blowing port 236 on the push plate 234 can blow the upstream cut end A1 of the material strip A into the gap 110 of the winding needle assembly 11, and the push plate 234 can push and trigger the clamping rod 12.

[0077] When the driving assembly drives the mounting seat 231 to move away from the winding needle assembly 11 located at the first station a1, the mounting seat 231 can drive the rotating shaft 232 to leave the above-mentioned rolling cutting position, so that there is a certain distance between the cutter 233 and the push plate 234 on the rotating shaft 232 and the winding needle assembly 11 located at the first station a1, ensuring that the cutter 233 and the push plate 234 on the rotating shaft 232 will not interfere with the winding action of the winding needle assembly 11 located at the first station a1.

[0078] It should be noted that the driving assembly can be 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 winding needle assembly 11 located at the first station a1. Furthermore, a guide assembly such as a slide rail can be used to guide the movement of the mounting seat 231. The specific structure of the driving assembly and the guide assembly is not limited here, as long as it can achieve driving the mounting seat 231 to accurately approach or move away from the winding needle assembly 11 located at the first station a1.

[0079] It should also be noted that, in some embodiments, the first rolling assembly 21 is mounted on the mounting seat 231, so that when the driving assembly drives the mounting seat 231 to approach or move away from the winding needle assembly 11 located at the first station a1, the mounting seat 231 can drive the rolling trigger assembly 23 and the first rolling assembly 21 to approach or move away from the winding needle assembly 11 located at the first station a1. In other words, the first rolling assembly 21 and the rolling trigger assembly 23 share the same driving assembly, and there is no need to configure an additional driving assembly for the first rolling assembly 21, which greatly simplifies the device structure, reduces the space required, and reduces the difficulty of spatial layout of the various components of the rolling trigger mechanism 20.

[0080] Specifically in the embodiment, the first rolling assembly 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 guide rod 214, and the first pressure 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 causes the first mounting frame 212 to have a movement tendency relative to the mounting seat 231 to approach the winding needle assembly 11 located at the first station a1. In this way, when the driving assembly drives the mounting seat 231 to approach the winding needle assembly 11 located at the first station a1, the first pressure roller 211 first presses the passing material strip A against the winding needle assembly 11 located at the first station a1, and as the mounting seat 231 continues to approach the winding needle assembly 11, the rotating shaft 232 moves with the mounting seat 231 to reach the above-mentioned rolling cutting position (in this process, the first elastic member 213 is further compressed). Optionally, the first elastic member 213 can be a compression spring.

[0081] During actual use, when the driving assembly drives the mounting seat 231 to approach the winding needle assembly 11 located at the first station a1, the first rolling assembly 21 and the rotating shaft 232 approach the winding needle assembly 11 located at the first station a1 together, and the first pressing roller 211 of the first rolling assembly 21 first presses the passing material strip A onto the winding 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 cutter 233 and the push plate 234 to rotate to face the slit 110 on the winding needle assembly 11 located at the first station a1, so that the cutter 233 cuts the material strip A passing through at the slit 110 of the winding needle assembly 11, and the air outlet 236 on the push plate 234 blows the upstream cut end A1 of the material strip A to between the clamping rod 12 and the clamping surface B in the slit 110, and the wedge block 2341 on the push plate 234 enters the slit 110 and pushes the clamping rod 12 to move toward the clamping surface B, so that the clamping rod 12 is triggered to clamp and fix the upstream cut end A1 of the material strip A on the clamping surface B. After the upstream cut end A1 of the material strip A is clamped and fixed on the clamping surface B by the clamping rod 12, the driving assembly drives the mounting seat 231 away from the winding needle assembly 11 located at the first station a1. When the driving assembly drives the mounting seat 231 away from the winding needle assembly 11 located at the first station a1, the rotating shaft 232 first leaves the above-mentioned rolling cutting position driven by the mounting seat 231 (in this process, the compression amount of the first elastic member 213 gradually decreases), so that the cutter 233 and the push plate 234 are away from the winding needle assembly 11 located at the first station a1, and then the first pressure roller 211 of the first rolling assembly 21 is separated from the winding needle assembly 11 located at the first station a1, that is, the first pressure roller 211 releases the pressure on the passing material strip A.

[0082] Of course, in other embodiments, the first rolling assembly 21 may not be arranged on the mounting seat 231, and a driving component may be provided to independently drive the first rolling assembly 21 to approach or move away from the winding needle assembly 11 located at the first station a1, which is not limited here.

[0083] It should also be noted that, in some embodiments, the second rolling assembly 22 is also mounted on the mounting seat 231, so that when the driving assembly drives the mounting seat 231 to approach or move away from the winding needle assembly 11 located at the first station a1, the mounting seat 231 can drive the rolling trigger assembly 23 and the second rolling assembly 22 to approach or move away from the winding needle assembly 11 located at the first station a1. In other words, the second rolling assembly 22 and the rolling trigger assembly 23 share the same driving assembly, and there is no need to configure an additional driving assembly for the second rolling assembly 22, which greatly simplifies the device structure, reduces the space required, and reduces the difficulty of spatial layout of the various components of the rolling trigger mechanism 20.

[0084] Specifically in the embodiment, the second rolling assembly 22 includes a second mounting frame 222 and a second elastic member 223. The second mounting frame 222 is movably connected to the mounting seat 231 through a second guide rod 224, and the second pressure roller 221 is rotatably connected to the second mounting frame 222. The second elastic member 223 abuts between the mounting seat 231 and the second mounting frame 222 to provide an elastic force that causes the second mounting frame 222 to have a movement tendency relative to the mounting seat 231 to approach the winding needle assembly 11 located at the first station a1. In this way, when the driving assembly drives the mounting seat 231 to approach the winding needle assembly 11 located at the first station a1, the second pressure roller 221 first presses the passing material strip A against the winding needle assembly 11 located at the first station a1, and as the mounting seat 231 continues to approach the winding needle assembly 11, the rotating shaft 232 moves with the mounting seat 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 be a compression spring.

[0085] During actual use, when the driving assembly drives the mounting seat 231 to approach the winding needle assembly 11 located at the first station a1, the second rolling assembly 22 and the rotating shaft 232 approach the winding needle assembly 11 located at the first station a1 together, and the second pressing roller 221 of the second rolling assembly 22 first presses the passing material strip A onto the winding 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 cutter 233 and the push plate 234 to rotate to face the slit 110 on the winding needle assembly 11 located at the first station a1, so that the cutter 233 cuts the material strip A passing through at the slit 110 of the winding needle assembly 11, and the air outlet 236 on the push plate 234 blows the upstream cut end A1 of the material strip A to between the clamping rod 12 and the clamping surface B in the slit 110, and the wedge block 2341 on the push plate 234 enters the slit 110 and pushes the clamping rod 12 to move toward the clamping surface B, so that the clamping rod 12 is triggered to clamp and fix the upstream cut end A1 of the material strip A on the clamping surface B. After the upstream cut end A1 of the material strip A is clamped and fixed on the clamping surface B by the clamping rod 12, the driving assembly drives the mounting seat 231 away from the winding needle assembly 11 located at the first station a1. When the driving assembly drives the mounting seat 231 to move away from the winding needle assembly 11 located at the first station a1, driven by the mounting seat 231, the rotating shaft 232 first leaves the above-mentioned rolling and cutting position (in this process, the compression amount of the second elastic member 223 gradually decreases), so that the cutter 233 and the push plate 234 move away from the winding needle assembly 11 located at the first station a1, and then the second pressure roller 221 of the second rolling assembly 22 is separated from the winding needle assembly 11 located at the first station a1, that is, the second pressure roller 221 releases the pressure on the passing material strip A.

[0086] Of course, in other embodiments, the second rolling assembly 22 may not be arranged on the mounting seat 231, and a driving component may be provided to independently drive the second rolling assembly 22 to approach or move away from the winding needle assembly 11 located at the first station a1, which is not limited here.

[0087] See also Figures 13 to 17 In an embodiment of the present application, the needle winding 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 needle winding assembly 11, and the rotating bracket 14 is rotatably connected to the fixed bracket 13. The clamping rod 12 is mounted on the rotating bracket 14 to rotate between the above-mentioned clamping position and the release position following the rotating bracket 14. 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 that drives the rotating bracket 14 to drive the clamping rod 12 to rotate to the clamping position or the release position. Thus, when the clamping rod 12 is in the release position, first, the upstream cut end A1 of the material strip A is blown into the gap between the clamping rod 12 and the clamping surface B by the air flow blown out of the air outlet 236; then, the two wedge blocks 2341 on the push plate 234 are inserted into the gap between the clamping rod 12 and the wall surface C, so that the clamping rod 12 is pushed by the inclined surface 2342, so that the rotating bracket 14 drives the clamping rod 12 to rotate toward the clamping surface B. When the rotating bracket 14 drives the clamping rod 12 to pass a certain intermediate equilibrium position, the elastic force provided by the third elastic member 15 can drive the rotating bracket 14 to drive the clamping rod 12 to rotate close to the clamping surface B until the clamping rod 12 presses and fixes the upstream cut end A1 of the material strip A on the clamping surface B (that is, the clamping rod 12 reaches the clamping position). Optionally, the third elastic member 15 can be a tension spring.

[0088] It should be noted that, since the angle between the third elastic member 15 and the rotating bracket 14 also changes during the process of the rotating bracket 14 driving the clamping rod 12 to rotate from the release position to the clamping position, the angle of the elastic force provided by the third elastic member 15 to the rotating bracket 14 due to compression will also change. When the clamping rod 12 is at any position between the release position and the intermediate equilibrium 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 clamping rod 12 to rotate toward the release position (i.e., rotate in a direction away from the clamping surface B). When the clamping rod 12 is at any position between the intermediate equilibrium position and the 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 clamping rod 12 to rotate toward the clamping position (i.e., rotate in a direction close to the clamping surface B). In this way, when using the wedge block 2341 on the push plate 234 to push the clamping rod 12, it is necessary to ensure that the clamping rod 12 is pushed from the loose position to any position between the intermediate equilibrium position and the clamping position (that is, it is necessary to ensure that the clamping rod 12 is pushed to exceed the intermediate equilibrium position) so that the clamping rod 12 can automatically be pressed against the clamping surface B under the action of the elastic force provided by the third elastic member 15, thereby achieving the compression and fixation of the upstream cut end A1 of the material strip A on the clamping surface B.

[0089] Specifically in the embodiment, the fixing bracket 13 has a limiting portion 131 (see Fig.17 ), when the rotating bracket 14 drives the clamping rod 12 to rotate to the released position, the limiting portion 131 cooperates with the stopper of the rotating bracket 14 to prevent the rotating bracket 14 from continuing to drive the clamping rod 12 to rotate in the direction away from the clamping surface B, that is, the limiting portion 131 is used to limit the clamping rod 12 in the released position, ensuring that there is a gap of a certain width between the clamping rod 12 and the wall surface C when the clamping rod 12 is in the released position, thereby ensuring that the wedge block 2341 on the push plate 234 can be accurately inserted into the gap and trigger the clamping rod 12 to push.

[0090] Specifically in the embodiment, the needle winding assembly 11 includes a needle winding seat 117, a first fixed needle 113, a second fixed needle 114, a first outer needle 111 and a second outer needle 112. The needle winding seat 117 can be controlled to rotate, and one end of the first fixed needle 113 and the second fixed needle 114 are both mounted on the needle winding seat 117 and arranged relative to each other. The first outer needle 111 is arranged on the first fixed needle 113, the second outer needle 112 is arranged on the second fixed needle 114, and the above-mentioned gap 110 is formed between the first outer needle 111 and the second outer needle 112. The side surface of the first outer needle 111 facing the second outer needle 112 includes the above-mentioned clamping surface B, and the fixing bracket 13 is installed on the first fixed needle 113 and / or the second fixed needle 114. In this way, the outer surfaces of the first outer needle 111 and the second outer needle 112 facing away from each other form the outer circumferential surface of the winding needle assembly 11. When the winding needle seat 117 rotates, it can drive the first outer needle 111 and the second outer needle 112 to rotate, thereby winding the material strip A onto the outer circumferential surface formed by the outer surfaces of the first outer needle 111 and the second outer needle 112 facing away from each other.

[0091] Furthermore, the first outer needle 111 and the second outer needle 112 can be controlled to move closer to or farther from each other relative to the first fixed needle 113 and the second fixed needle 114, respectively, so as to reduce or increase the radial dimension of the outer peripheral surface. The winding needle mechanism 10 also includes a reset block 16 installed on the second outer needle 112. When the first outer needle 111 and the second outer needle 112 approach each other, the second outer needle 112 drives the reset block 16 to push 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 material strip A, so as to facilitate 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 core A2, the first outer needle 111 and the second outer needle 112 are controlled to move closer to each other. On the one hand, the radial size of the outer peripheral surface formed by the first outer needle 111 and the second outer needle 112 is reduced, so that the winding needle assembly 11 can be easily pulled out from the core A2; on the other hand, the second outer needle 112 drives the reset block 16 to push 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 material strip A, so that the winding needle assembly 11 can be easily pulled out from the core A2.

[0092] It should be noted that when the second outer needle 112 drives the reset block 16 to push the rotating bracket 14, it is necessary to ensure that the rotating bracket 14 is pushed to drive the clamping rod 12 to rotate to any position between the intermediate equilibrium position and the release position. Only when the rotating bracket 14 drives the clamping rod 12 to reach any position between the intermediate equilibrium position and the release position, the rotating bracket 14 can automatically rotate to cooperate with the stopper of the limit part 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).

[0093] 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 be driven to push the rotating bracket 14 when the first outer needle 111 and the second outer needle 112 move close to each other, and the rotating bracket 14 can drive the clamping rod 12 to rotate from the clamping position to the release position, no limitation is made here.

[0094] Specifically in the embodiment, the winding needle assembly 11 also 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 winding needle assembly 11. The first slider 118 is movably connected to the first fixed needle 113 along the radial direction v of the winding needle assembly 11. The first outer needle 111 is connected to the first slider 118, so that the first outer needle 111 can follow the first slider 118 to move along the radial direction V of the winding needle assembly 11 (i.e., approach or move away from the second outer needle 112). The first slider 118 is provided with a first strip groove 1181, and the longitudinal extension direction of the first strip groove 1181 is inclined to the axial direction u and radial direction v of the winding needle assembly 11. The first roller 1191 is rotatably connected to the first push rod 115 and rollingly cooperates with the first strip groove 1181. In this way, when the first push rod 115 moves along the axial direction u of the winding needle assembly 11 under the action of external force, the first push rod 115 drives the first roller 1191 to roll along the first strip groove 1181 on the first slider 118. Since the longitudinal extension direction of the first strip groove 1181 is inclined to both the axial direction u and the radial direction v of the winding needle assembly 11, the first roller 1191 can drive the first slider 118 to move along the radial direction v of the winding needle assembly 11 when rolling along the first strip groove 1181 of the first slider 118, and then the first slider 118 drives the first outer needle 111 to move relative to the first fixed needle 113 along the radial direction v of the winding needle assembly 11, so as to increase or decrease the radial dimension of the outer peripheral surface of the winding needle assembly 11.

[0095] Furthermore, the winding needle assembly 11 further includes a fourth elastic member 1193 (see Fig.16), the fourth elastic member 1193 is in contact between the winding needle seat 117 and the end of the first push rod 115 facing the winding needle seat 117, and is used to provide an elastic force that causes the first push rod 115 to have a movement tendency away from the winding needle seat 117. In this way, when the first push rod 115 moves toward the winding needle seat 117 along the axial direction u of the winding needle assembly 11 under the action of external force, the fourth elastic member 1193 is pressed by the first push rod 115 and further compressed, and the first push rod 115 drives the first roller 1191 to roll along the first strip 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 size of the outer peripheral surface of the winding needle assembly 11 increases, and at this time, the winding needle assembly 11 is used to wind the material strip A to form the winding core A2.

[0096] When the external force acting on the first push rod 115 disappears, the first push rod 115 moves away from the winding needle seat 117 along the axial direction u of the winding needle assembly 11 under the action of the elastic force provided by the fourth elastic member 1193, and the first push rod 115 drives the first roller 1191 to roll along the first strip groove 1181 on the first slider 118, thereby driving the first slider 118 to drive the first outer needle 111 relative to the first fixed needle 113 to approach the second outer needle 112, so that the radial dimension of the outer peripheral surface of the winding needle assembly 11 is reduced, so as to facilitate the unloading of the winding core A2 on the winding needle assembly 11.

[0097] Furthermore, a second strip groove 1131 is provided on the first fixed needle 113, and the second strip groove 1131 extends longitudinally along the axial direction u of the winding needle assembly 11. The winding needle assembly 11 also 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 groove 1131. In this way, when the first push rod 115 moves, the first push rod 115 drives the second roller 1192 to roll along the second strip groove 1131. Since the longitudinal direction of the second strip groove 1131 is parallel to the axial direction u of the winding needle assembly 11, the second strip groove 1131 can be used to guide the movement of the first push rod 115 along the axial direction u of the winding needle assembly 11.

[0098] Specifically in the embodiment, the needle winding assembly 11 further includes a second push rod 116, a second slider 1194 (see Fig.16) and a third roller (not shown). The second push rod 116 is movably connected to the second fixed needle 114 along the axial direction u of the winding needle assembly 11. The second slider 1194 is movably connected to the second fixed needle 114 along the radial direction v of the winding needle 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 winding needle assembly 11 (i.e., approach or move away from the first outer needle 112) with the second slider 1194. A third strip groove (not shown) is provided on the second slider 1194, and the longitudinal extension direction of the third strip groove is inclined to the axial direction u and radial direction v of the winding needle assembly 11. The third roller is rotatably connected to the second push rod 116 and rollingly cooperates with the third strip groove. In this way, when the second push rod 116 moves along the axial direction u of the winding needle assembly 11 under the action of external force, the second push rod 116 drives the third roller to roll along the third strip groove on the second slider 1194. Since the longitudinal extension direction of the third strip groove is inclined to the axial u and radial v of the winding needle assembly 11, when the third roller rolls along the third strip groove on the second slider 1194, it can drive the second slider 1194 to move along the radial v of the winding needle assembly 11, and then the second slider 1194 drives the second outer needle 112 to move relative to the second fixed needle 114 along the radial v of the winding needle assembly 11 to increase or decrease the radial size of the outer peripheral surface of the winding needle assembly 11.

[0099] Furthermore, the needle winding assembly 11 further includes a fifth elastic member 1195, which abuts against the needle winding seat 117 and one end of the second push rod 116 facing the needle winding seat 117, and is used to provide an elastic force that causes the second push rod 116 to have a movement tendency away from the needle winding seat 117. In this way, when the second push rod 116 moves toward the needle winding seat 117 along the axial direction u of the needle winding assembly 11 under the action of an external force, the fifth elastic member 1195 is pressed by the second push rod 116 and further compressed, and the second push rod 116 drives the third roller to roll along the third strip groove on the second slider 1194, thereby driving the second slider 1194 to drive the second outer needle 112 away from the first outer needle 111 relative to the second fixed needle 114, so that the radial size of the outer peripheral surface of the needle winding assembly 11 increases, and at this time, the material strip A is wound using the needle winding assembly 11 to form a winding core A2.

[0100] When the external force acting on the second push rod 116 disappears, the second push rod 116 moves away from the winding needle seat 117 along the axial direction u of the winding needle assembly 11 under the action of the elastic force provided by the fifth elastic member 1195, and the second push rod 116 drives the third roller to roll along the third strip groove on the second slider 1194, thereby driving the second slider 1194 to drive the second outer needle 112 relative to the second fixed needle 114 to approach the first outer needle 111, so that the radial dimension of the outer peripheral surface of the winding needle assembly 11 is reduced, so as to facilitate the unloading of the winding core A2 on the winding needle assembly 11.

[0101] Furthermore, a fourth strip groove is formed on the second fixed needle 114, and the fourth strip groove extends longitudinally along the axial direction u of the winding needle assembly 11. The winding needle assembly 11 also includes a fourth roller rotatably connected to the second push rod 116. The fourth roller is in rolling cooperation with the fourth strip 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 groove. Since the longitudinal direction of the fourth strip groove is parallel to the axial direction u of the winding needle assembly 11, the fourth strip groove can be used to guide the movement of the second push rod 116 along the axial direction u of the winding needle assembly 11.

[0102] Please continue to see Figures 1 to 5 In an embodiment of the present application, the winding device further includes a turret 30, and the number of the needle winding mechanisms 10 is at least two. The turret 30 is rotatably arranged, and the needle winding assembly 11 of each needle winding mechanism 10 is rotatably connected to the turret 30 through the needle winding seat 117. The needle winding assembly 11 of each needle winding mechanism 10 passes through the first station a1 and the second station a2 in sequence during the rotation of the turret 30. When the needle winding assembly 11 located at the first station a1 rotates to the second station a2 with the turret 30, another needle winding assembly 11 rotates to the first station a1 with the turret 30.

[0103] 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 strip A continues to be transported downstream, and the turret 30 drives the winding needle assembly 11 located at the first station a1 to rotate to the second station a2, and the other winding needle assembly 11 rotates to the first station a1 with the turret 30. At this time, the needle assembly 11 at the first station a1 rotates around its own axis, and at the same time, the first rolling assembly 21 drives the first pressing roller 211 to press the part of the material strip A located upstream of the cutter 233 onto the needle assembly 11 at the first station a1, and the second rolling assembly 22 drives the second pressing roller 221 to press the part of the material strip A located downstream of the cutter 233 onto the needle assembly 11 at the first station a1, and the rotating shaft 232 moves close to the needle assembly 11 at the first station a1 to the rolling cutting position, and the slit 110 on the needle assembly 11 at the first station a1 rotates to face the cutter 233 and the push plate 234 on the rotating shaft 232. At this time, the rotating shaft 232 drives the cutter 233 to rotate and contact the material strip A, thereby cutting the material strip A (i.e., the cutter 233 is used to roll the passing material strip A). Then, under the action of the airflow blown out from the blowing port 236, the upstream cut end A1 of the material strip A is blown into the gap 110 of the winding needle assembly 11 located at the first workstation a1, and then under the pushing action of the push plate 234, the clamping rod 12 rotates from the release position to the clamping position to clamp the upstream cut end A1 of the material strip A entering the gap 110 on the clamping surface B.

[0104] After the upstream cut end A1 of the material strip A is blown into the gap 110 of the winding needle assembly 11 located at the first station a1, the rotating shaft 232 gradually moves away from the winding needle assembly 11 located at the first station a1 under the driving action of the driving assembly, so that the cutter 233 and the push plate 234 on the rotating shaft 232 move away from the winding needle assembly 11 located at the first station a1 and play the role of avoiding the winding needle assembly 11. Then, the first rolling assembly 21 drives the first pressing roller 211 to leave the winding needle assembly 11 located at the first station a1. Then, after the winding needle assembly 11 located at the first station a1 winds the material strip A onto its outer circumference for at least one circle, the second rolling assembly 22 drives its second pressing roller 221 to leave the winding needle assembly 11 located at the first station a1. In this process, the winding needle assembly 11 located at the first station a1 continues to rotate to wind the material strip A onto its outer circumference to form a winding core A2.

[0105] After the material strip A is cut by the cutter 233, the winding needle assembly 11 located at the second station a2 continues to wind until the cut material strip A is completely wound onto its outer peripheral surface, and then the winding core A2 on the winding needle assembly 11 located at the second station a2 is subjected to actions such as affixing finishing tape and / or unloading.

[0106] It should be noted that, in some other embodiments, the winding needle assembly 11 of each winding needle mechanism 10 may also pass through the third station a3 during the process of rotating with the turret 30. That is to say, the winding needle assembly 11 of each winding needle mechanism 10 passes through the first station a1, the second station a2 and the third station a3 in sequence during the process of rotating with the turret 30. The winding needle assembly 11 winds the material strip A conveyed upstream to form a core A2 at the first station a1. The winding needle assembly 11 adheres finishing glue to the core A2 on the winding needle assembly 11 at the second station a2, so as to prevent the core A2 on the winding needle assembly 11 from becoming loose. The winding needle assembly 11 unloads the core A2 on the winding needle assembly 11 at the third station a3. 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), the winding operation steps of the winding equipment 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 repeated here.

[0107] It should be noted that the winding operation steps described above are only used as an implementation method. Of course, in other implementation methods, other winding operation steps can also be used, as long as the winding forming core A2 can be achieved, and no limitation is made here.

[0108] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0109] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A winding device, characterized in that: include: A winding needle mechanism, comprising a winding needle assembly and a clamping rod, wherein the winding needle assembly has a clamping gap and a clamping surface as a side wall of the clamping gap, the winding needle assembly can be controlled to rotate to wind the material strip, and the clamping rod is arranged in the clamping gap and can be operated to switch between a clamping position abutting against the clamping surface and a release position separated from the clamping surface; and The rolling and cutting trigger mechanism comprises a rolling and cutting triggering assembly, wherein the rolling and cutting triggering assembly is used to press the material strip against the winding needle assembly, and the rolling and cutting triggering assembly comprises a rotating shaft, a cutter and a push plate, wherein the push plate has an air blowing port, and the cutter is arranged on the rotating shaft, and the rotating shaft can rotate around its own axis to drive the cutter to rotate to be opposite to the clamping gap on the winding needle assembly; Among them, when the rotating shaft drives the cutter to rotate to be opposite to the gap on the winding needle assembly, the cutter cuts off the material strip passing through, and the blowing port blows the upstream cut end formed after the material strip is cut into the gap between the clamping rod and the clamping surface, and the clamping rod switches from the release position to the clamping position.

2. The winding device according to claim 1, characterized in that When the rotating shaft rotates around its own axis, it can drive the cutter to roll-cut the passing material strip at the gap on the winding needle assembly.

3. The winding device according to claim 1, characterized in that The push plate can be controlled to move into the clamping gap and push the clamping rod from the release position to the clamping position.

4. The winding device according to claim 3, characterized in that The push plate is arranged on the rotating shaft.

5. The winding device according to claim 4, characterized in that The rolling cutting trigger assembly also includes a mounting seat and a cam, the rotating shaft is rotatably connected to the mounting seat, the cutter is fixedly connected to the rotating shaft, the push plate is movably connected to the rotating shaft, and the cam is sleeved on the rotating shaft and fixedly connected to the mounting seat; The cam is in driving connection with the push plate, so as to drive the push plate to approach or move away from the winding needle assembly relative to the rotating shaft when the push plate rotates following the rotating shaft.

6. The winding device according to claim 5, characterized in that The cam has a track groove, and a follower roller is installed on the push plate, and the follower roller rolls and fits in the track groove; When the rotating shaft drives 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 winding needle assembly relative to the rotating shaft under the guidance of the track groove.

7. The winding device according to claim 4, characterized in that The rolling cutting trigger assembly also includes a trigger driving member installed on the rotating shaft, the push plate is movably connected to the rotating shaft, and 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 be closer to or away from the winding needle assembly relative to the rotating shaft.

8. The winding device according to claim 5 or 7, characterized in that: The rolling cutting trigger assembly also includes a guide rod, one end of which is fixedly connected to the rotating shaft, and the other end of which is fixedly connected to the cutter. The push plate is provided with a guide hole, and the guide rod is arranged through the guide hole so that the push plate can move along the guide rod.

9. The winding device according to claim 3, characterized in that The push plate has a wedge block at one end close to the winding needle assembly, and the wedge block has an inclined surface inclined to the moving direction of the push plate. When the push plate moves into the gap of the winding needle assembly, the push plate pushes the clamping rod through the inclined surface to convert the moving motion of the push plate into the movement of the clamping rod close to the clamping surface.

10. The winding device according to claim 9, characterized in that The winding needle assembly also has a wall surface serving as the other side wall of the clamping gap, and the wall surface and the clamping surface are arranged opposite to each other; when the clamping rod is in the loosened position, there is a gap between the clamping rod and the wall surface, and the gap is used for the wedge block to enter.

11. The winding device according to claim 1, characterized in that The rolling assembly includes a first rolling assembly having a first pressing roller rotatable around its own axis. The first rolling assembly can controllably drive the first pressing roller to press a portion of the material strip located upstream of the cutter against the winding needle assembly.

12. The winding device according to claim 11, characterized in that The rolling assembly also includes a second rolling assembly having a second pressing roller rotatable around its own axis. The second rolling assembly can controllably drive the second pressing roller to press the portion of the material strip located downstream of the cutter against the winding needle assembly.

13. The winding device according to claim 12, characterized in that The rolling trigger assembly further includes a mounting seat, the rotating shaft is rotatably connected to the mounting seat, and the rolling trigger mechanism further includes a driving assembly, the mounting seat is 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 winding needle assembly; The first rolling assembly and / or the second rolling assembly is mounted on the mounting seat.

14. The winding device according to any one of claims 1 to 13, characterized in that The needle winding mechanism further comprises a fixed bracket, a rotating bracket and a third elastic member, wherein the fixed bracket is mounted on the needle winding assembly, the rotating bracket is rotatably connected to the fixed bracket, and the clamping rod is mounted on the rotating bracket to follow the rotating bracket to rotate between the clamping position and the release position; One end of the third elastic member is connected to the fixed bracket, and the other end of the third elastic member is connected to the rotating bracket. The second elastic member is used to provide elastic force to drive the rotating bracket to drive the clamping rod to rotate to the clamping position or the release position.

15. The winding device according to claim 14, characterized in that The fixed bracket has a limiting portion, and when the rotating bracket drives the clamping rod to rotate to the release position, the limiting portion cooperates with the rotating bracket stopper to prevent the rotating bracket from driving the clamping rod to rotate in a direction away from the clamping surface.

16. The winding device according to claim 14, characterized in that The needle winding assembly includes a needle winding seat, a first fixed needle, a second fixed needle, a first outer needle and a second outer needle. The needle winding seat can rotate in a controlled manner. One end of the first fixed needle and the second fixed needle are both mounted on the needle winding seat and are arranged opposite to each other. The first outer needle is arranged on the first fixed needle, and the second outer needle is arranged on the second fixed needle. The gap is formed between the first outer needle and the second outer needle. The side surface of the first outer needle facing the second outer needle includes the clamping surface. The fixing bracket is installed on the first fixed needle and / or the second fixed needle.

17. The winding device according to claim 16, characterized in that The first outer needle and the second outer needle can be controlled to move closer to or farther away from each other relative to the first fixing needle and the second fixing needle respectively; The needle winding mechanism also includes a reset block installed on the first outer needle or the second outer needle. When the first outer needle and the second outer needle approach each other, the first outer needle or the second outer needle drives the reset block to push the rotating bracket, so that the rotating bracket drives the clamping rod to rotate from the clamping position to the release position.

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