A winding device

Abstract

The present application provides a winding device, including: a winding needle, which is rotatably arranged, and a material pressing groove is arranged on the winding surface; a pressure plate, which is movably arranged in the material pressing groove, can be in an open state to form a material pressing space for the material supply tape to enter, and can be switched to a closed state to press the material tape under the action of a first elastic member or the push of a power mechanism, and a notch is formed on the pressure plate; a material pushing assembly, including a first material pushing member and a second material pushing member, both of which can approach or move away from the winding needle in the radial direction of the winding needle, the first material pushing member is used to push the material tape and push the material tape to open the pressure plate, the second material pushing member is opposite to the notch and is used to be embedded in the notch, and can push the material tape located in the material pressing space when the first material pushing member exits the material pressing groove. The winding device can firmly and smoothly fix the material tape on the winding needle, effectively prevent the material tape from wrinkling or dislocation, and improve the quality of the finished material, and the mechanism for fixing the material tape moves quickly, which can reduce the time used to fix the material tape, so that the winding needle can quickly start winding, and improve the winding efficiency.

Description

Technical Field

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

[0002] The production of many types of products involves the automatic winding of material strips. For example, in the production process of power batteries, pole pieces and diaphragms need to be wound into battery cells. To automatically wind the material strip, the head end of the material strip needs to be fixed to the winding needle, and then the winding needle rotates around its own central axis to form an automatic winding. If the material strip is not fixed smoothly, wrinkles or partial dislocations will occur, which will affect the quality of the finished material. Especially in the field of batteries, wrinkles and dislocations of diaphragms or pole pieces will seriously affect the performance of the battery. Summary of the invention

[0003] In view of this, the present application is dedicated to providing a winding device that can firmly and smoothly fix the material strip on the winding needle, effectively prevent the material strip from wrinkling or dislocation, and improve the quality of the finished material. The mechanism for fixing the material strip moves quickly and can reduce the time used to fix the material strip, so that the winding needle can start winding quickly, thereby improving the winding efficiency.

[0004] The present application provides a winding device, comprising:

[0005] A winding needle is rotatably arranged to wind the material strip, and a pressing groove is provided on the winding surface;

[0006] A pressing plate is movably arranged in the pressing groove, can be in an open state to form a pressing space for the material supply belt to enter, and can be switched to a closed state to press the material belt under the action of the first elastic member or the push of the power mechanism, and a notch is formed on the pressing plate;

[0007] The material pushing assembly includes a first material pushing member and a second material pushing member, both of which can move closer to or farther away from the winding needle in the radial direction of the winding needle. The first material pushing member is used to push the material belt and push the material belt to open the pressure plate. The second material pushing member is opposite to the notch and is used to be embedded in the notch, and can push the material belt located in the pressure space when the first material pushing member exits the pressure groove.

[0008] In a possible implementation manner, the first pushing member approaches the winding needle before the second pushing member and moves away from the winding needle before the second pushing member, and the pressing plate is in or restores a closed state through the first elastic member.

[0009] In a possible embodiment, the first pushing member is used to push the material strip into a first position in the pressing space, and the second pushing member is used to push the material strip into a second position in the pressing space, and the second position is closer to the central axis of the winding needle than the first position.

[0010] In a possible embodiment, the pressure plate is rotatably connected to the winding needle via a rotating shaft, and under the action of the first elastic member, it abuts against the groove side wall A of the pressing groove to form a closure; the edge of the pressure plate has an outward warping portion, and when the pressure plate is in a closed state, the outward warping portion and the groove side wall A form an expanded space for inserting the first pushing member.

[0011] In a possible implementation manner, the first pushing member and the second pushing member are arranged in parallel; or, the first pushing member is provided with a through groove for accommodating the second pushing member so as to be sleeved on the second pushing member, and the second pushing member can extend from the first pushing member.

[0012] In a possible implementation, the first pushing member is a first pushing plate, the second pushing member is a second pushing plate, the pushing assembly further includes a cutter for cutting the material strip, and the winding needle surface is further provided with a cutting groove for the cutter to be embedded.

[0013] In a possible embodiment, the frame of the winding device includes a first frame and a second frame that can approach or move away from each other, and the winding needle is arranged on the second frame and moves with the second frame to switch the workstation; the pushing assembly is arranged on the first frame, and can rotate synchronously and coaxially with the winding needle located at the winding workstation, so as to push the material strip into the pressing groove for fixing in a relatively static state with the material strip and the winding needle.

[0014] In a possible implementation, a rotatable rotating member is provided on the first frame, the pusher assembly is arranged on the rotatable member, and driven by the rotatable member, can rotate synchronously with the winding needle on one side of the winding needle at the winding station.

[0015] In a possible embodiment, a track extending along the circumference of the winding needle on the winding station is further provided on the first frame, and the track has at least two raised sections arranged at intervals, and a recessed section located in the intervals between the raised sections. The pushing assembly rotates along the track under the drive of the rotating member, so that during the rotation, it is guided by the track to radially displace relative to the winding needle and approach or move away from the winding needle.

[0016] In a possible embodiment, the rotating member is a rotating ring arranged on the first frame, and a notch is provided on the rotating ring for the winding needle to enter the annulus. The pushing assembly is connected to the rotating ring, and the rotating ring is connected to the driving member to drive the pushing assembly and the winding needle to rotate synchronously.

[0017] In a possible embodiment, the track is arranged on one side of the rotating member, and the rotating member is provided with a base and a guide rod penetrating the base and slidingly arranged along the radial direction of the winding needle, one end of the guide rod is used to connect the pushing assembly, and the other end is connected to a guide member, and the guide member is arranged on the track and used to move along the track to drive the pushing assembly to move radially along the winding needle.

[0018] In a possible implementation manner, a second elastic member is provided on the guide rod, and the second elastic member is located between the base and the guide member, and pushes the guide member when the guide member moves from the recessed section into the raised section.

[0019] In a possible embodiment, the guide rods and the guide members are arranged one-to-one and at least two groups are arranged, and the first pusher and the second pusher are respectively connected to the two guide rods so as to rotate along the track respectively; and in the rotation direction, the first pusher is located upstream / front end of the second pusher so as to approach the winding needle before the second pusher, and move away from the winding needle before the second pusher.

[0020] In a possible embodiment, when the pusher assembly includes a cutter, the cutter and the first pusher are connected to the same guide rod; the cutter is located behind the first pusher in the rotation direction; and in the radial direction of the rotating member, the first pusher is closer to the axis of the rotating member than the cutter.

[0021] In a possible implementation, the track is a groove structure, the groove side walls of the recessed section and the raised section are smoothly connected, and a slider or a roller located in the groove is provided at the bottom end of the guide member.

[0022] In a possible implementation manner, a rotatably connected pressing roller is further provided on the rotating member, and the pressing roller is used to press the material strip against the surface of the winding needle and rotate synchronously with the winding needle.

[0023] In a possible embodiment, the rotating member is provided with a base and a connecting frame that passes through the base and is slidably arranged along the radial direction of the winding needle, the pressure roller is rotatably arranged on the connecting frame, and a third elastic member is arranged between the side of the base close to the winding needle and the connecting frame, and the third elastic member pushes the pressure roller to reset when the pressure roller moves away from the winding needle.

[0024] In a possible implementation, a driving mechanism for driving the pressure plate to open is further provided in the winding needle, so as to open the pressure plate and loosen the material belt during unloading.

[0025] In a possible implementation, the pressing plate is rotatably arranged, and the driving mechanism includes an airbag for pushing the pressing plate and an inflation and exhaust assembly connected to the airbag.

[0026] In a possible embodiment, a plurality of rotatable transmission wheels are provided on the first frame, the plurality of transmission wheels surround the outer circumference of the rotating ring and are meshed transmission connected or friction transmission connected with the rotating ring; the driving member is transmission connected to at least one of the transmission wheels to drive the rotating ring to rotate.

[0027] In a possible embodiment, the rotating shaft that drives the winding needle to rotate forms the driving member and is connected to the rotating ring through a power transmission structure. The power transmission structure can switch between a connected state and a disconnected state. When in the connected state, the rotating ring rotates synchronously with the winding needle. When in the disconnected state, the winding needle rotates relative to the rotating ring.

[0028] In a possible implementation manner, the power transmission structure includes:

[0029] A first connecting member, disposed on the winding needle and capable of rotating synchronously with the winding needle;

[0030] A second connecting member is disposed on the rotating ring and can be displaced to the rotating path of the first connecting member, so that the first connecting member can push the second connecting member to drive the rotating ring to rotate synchronously;

[0031] The return member drives the rotating ring to return to the initial position.

[0032] The winding device provided by the present application has a single needle body structure, a pressing groove is provided on the winding surface, and a press plate is provided in the pressing groove. The press plate opens to allow the material belt to enter, and the press plate closes to press the material belt. The opening of the press plate is achieved by a first pusher. The first pusher and the second pusher are located on one side of the material belt, and the winding needle is located on the other side of the material belt. The first pusher pushes the material belt close to the winding needle and opens the press plate, pushing the material belt into the pressing space, so that the material belt is pushed into the pressing space while the press plate is opened. The second pusher is opposite to the notch on the press plate, and is used to insert into the notch or the pressing space opposite to the notch, and pushes the material belt that is already in the pressing space when the first pusher retracts, so as to prevent the first pusher from pulling out the material belt due to friction when exiting the pressing groove, and prevent the material belt from being taken away by the first pusher and failing to solidify, and also prevent the first pusher from pulling out the material belt when withdrawing, causing wrinkles or partial dislocation, etc., which leads to uneven material belt. Since the notches of the second pusher and the pressure plate are opposite, the second pusher can be completely pulled out after the first pusher has completely left the pressure groove. At this time, the material strip has been pressed by the pressure plate, and the second pusher will not produce the friction of pulling out with the pressure plate, and will not pull the material strip to cause wrinkles or dislocation, etc. Therefore, through the coordinated setting of the above two pushers and the pressure plate, the material strip can be smoothly fixed, effectively preventing the pressed material strip section from wrinkling or partial dislocation, etc., which affect the quality of the material roll. The opening of the pressure plate is realized by the pusher that pushes the material strip, and it can be opened while pushing the material. The opening and closing of the pressure plate is synchronized with the entry and exit of the first pusher, and is realized through the linkage of the mechanical structure. It has a fast response and a fast action, which can reduce the time used to fix the material strip, enable the winding needle to start winding quickly, and improve the winding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The figure shows a schematic diagram of the arrangement of the winding needle and the material pushing assembly in one embodiment of the present application;

[0034] Figure 2 Shown Figure 1 A partial enlarged view of

[0035] Figure 3 The figure shows a schematic diagram of the arrangement of the winding needle and the material pushing assembly in another embodiment of the present application;

[0036] Figure 4 It is a schematic diagram of the first angle of the open state of the pressure plate in the embodiment of the present application;

[0037] Figure 5 It is a second angle schematic diagram of the open state of the pressing plate in the embodiment of the present application;

[0038] Figure 6 The figure shows the structural relationship between the pusher assembly, the rotating member and the track in the embodiment of the present application;

[0039] Figure 7 The figure shows a first angle schematic diagram of the pusher assembly, the track and the pressure plate in the embodiment of the present application;

[0040] Figure 8 The figure shows a second angle schematic diagram of the pusher assembly, the track and the pressure plate in the embodiment of the present application;

[0041] Fig. 9 It is a schematic diagram showing the composition of the driving structure of the rotating member in the embodiment of the present application;

[0042] Fig.10 Shown is a schematic diagram of the composition of the power transmission structure of the rotating part in the embodiment of the present application.

[0043] 1. Material belt; 1', material belt head section; 2. First frame; 3. Winding needle; 301, material pressing groove; 302, material pressing space; 303, material cutting groove; 4. Pressing plate; 401, notch; 5. First elastic member; 6. First material pushing member; 7. Second material pushing member; 8. Cutter; 9. Track; 901, raised section; 902, recessed section; 10. Rotating ring; 11. Pressing roller; 12. Transmission wheel; 13. Base; 14. Guide rod; 14', first guide rod; 14", second guide rod; 15. Guide member; 15', first guide member; 15", second guide member; 16. Second elastic member; 17. Airbag; 18. Rotating shaft; 19. First connecting member; 20. Second connecting member; 21. Return member. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] Please refer to the attached Figure 1-10 The embodiment of the present application provides a winding device, which includes a frame, a winding mechanism arranged on the frame, a feeding mechanism for conveying a material strip 1, a cutter 8 for cutting the material strip 1, etc. The winding mechanism includes a winding needle 3, a rotating shaft 18 connected to the winding needle 3 and driving the winding needle 3 to rotate along its own central axis, a winding power such as a motor, a cylinder, a hydraulic cylinder, etc., which is transmission-connected to the rotating shaft 18, and a pushing component for at least pushing the material strip 1 to fix the head section of the material strip to the winding needle 3.

[0046] The frame may include a first frame 2 and a second frame, and the first frame 2 and the second frame can be close to or far away from each other. The winding needle 3 and the material pushing assembly are arranged on different frames, such as the material pushing assembly is arranged on the first frame 2, and the winding needle 3 is rotatably arranged on the second frame, and at the same time, the second frame can move with the winding needle 3. In this way, the winding and unloading of the winding needle 3 can be divided into different stations, such as a winding station for winding the material strip 1, a unloading station for unloading after winding, etc. The material pushing assembly can be only located at the winding station, and the winding needle 3 can switch stations easily. The material strip 1 is transported by the conveying mechanism and is moved to the winding station. It is on one side of the cutter and the material pushing member. When the winding needle 3 moves to the winding station, the winding needle 3 is on the other side of the material strip 1. The material strip 1 is automatically located between the material pushing assembly and the winding needle 3.

[0047] In the present application, the winding needle 3 is a single needle structure, and at the same time, a material pressing groove 301 is provided on the winding surface of the winding needle 3, and a pressing plate 4 is provided in the material pressing groove 301 for pressing the material strip 1 (of course, this component is not limited to a plate shape, nor is it limited to a plate body, and can also be other structural forms such as a bracket, a pressing block, a seat body, etc., and is named as a pressing plate 4 in the present application for ease of understanding, and is shown as a plate in the accompanying drawings). The pressing plate 4 is movably arranged to form an open state and a closed state, and opens and closes toward the notch of the material pressing groove 301.

[0048] In the original state or initial state, the pressing plate 4 is in a closed state, such as covering a groove side wall of the pressing groove 301, which can be recorded as groove side wall A. When the pressing plate 4 is switched to the open state, the groove space between it and the groove side wall A forms a pressing space 302 for the feed belt 1 to enter. When switched to the closed state, the material belt 1 can be pressed, such as pressing the pressing material against the groove side wall A. Of course, the pressing plate 4 can also have two plate bodies, and the two plate bodies are close to or away from each other to form an opening and closing. In the present application, whether the pressing plate 4 forms an opening and closing with the groove side wall, or includes two plate bodies for opening and closing, the principle of switching between the closed and open states is the same. Specifically, the pressing plate 4 is in or restored to a closed state through a first elastic member 5 such as a spring or other power mechanism that applies thrust. In a preferred embodiment of the present application, the pressing plate 4 is in or restored to a closed state through a first elastic member 5. For example, the pressing plate 4 is rotatably connected to the winding needle 3 via a rotating shaft, and a first elastic member 5 is provided between the pressing plate 4 and the material pressing groove 301. Under the pushing action of the first elastic member 5, the pressing plate 4 abuts against the groove side wall A of the material pressing groove 301 to form a closure. If the pressing plate 4 includes two plate bodies, the two plate bodies can be hinged, and the first elastic member 5 can be located at the outer sides of the two plate bodies respectively, and abut against the two plate bodies respectively, so that the two plate bodies are closed and press the material strip 1. Therefore, the following description takes the example of the pressing plate 4 approaching or moving away from the groove side wall A to form an opening and closing.

[0049] When the winding needle 3 moves to the winding station, the material strip 1 is automatically located between the material pusher assembly and the winding needle 3. The cutter 8 and the material pusher for pushing the material strip 1 are close to the winding needle 3. When the material strip 1 is attached to the winding surface of the winding needle 3, the material pusher pushes a part of the material strip 1 into the pressing groove 301 and pushes a part of the material strip into the pressing space 302. The pressing plate 4 closes and presses the strip. The cutter 8 cuts the material strip 1 downstream (behind in the rotation direction) of the material pusher. The part of the strip pressed by the pressing plate 4 is also the part of the strip pushed by the material pusher, forming the material strip head section 1', thus completing the fixing of the material strip head section 1' (hereinafter, the material strip head section 1' is used to describe the part of the strip pushed by the material pusher, but it should be emphasized that in actual operation, the material strip is usually pushed by the material pusher first, and the cutter cuts the material strip after the material strip is pressed). The material pushing assembly is away from the winding needle, and the winding needle 3 carries the material tape head section 1' to rotate to start the material tape winding.

[0050] Such an arrangement is compared with the prior art in which the winding needle is composed of two half needles, and in the winding station, one half needle needs to be moved away first to allow the material tape to enter between the two half needles, and then the half needle is moved back, and at the same time, a pressure block needs to be used to press the material tape in the gap between the two half needles. In the present application, the winding needle is a single needle body structure, and a pressure groove is provided on the winding surface. The pushing assembly pushes the material tape directly into the pressure groove and is simultaneously pressed by the pressure plate to achieve solid material, and then it can be quickly wound. The action is fast, the solid material process is simple, the time is short, and the winding efficiency is improved.

[0051] The material pushing assembly includes a first material pushing member 6 and a second material pushing member 7. After the winding needle 3 moves to the winding station, the material pushing assembly can be moved close to the winding needle 3, and the pressing groove 301 is opposite to the first material pushing member 6 and the second material pushing member 7. At the same time, the first material pushing member 6 and the second material pushing member 7 can both move close to or away from the winding needle 3 in the radial direction of the winding needle 3, so that the material strip 1 can be pushed into the pressing groove 301 and pressed by the pressing plate 4.

[0052] The first pusher 6 is also used to open the pressing plate 4. It is at least opposite to the section of the pressing plate 4 where the notch 401 is not provided. It can also be set to match the length of the pressing plate 4, such as being equal to the pressing plate 4. In order to press the material strip 1 smoothly, in a preferred embodiment, the pressing plate 4 extends along the axial direction of the winding needle 3, and the overall length (including the notch) can be set to match the axial length of the winding needle 3. The first pusher 6 also extends along the axial direction of the winding needle 3. If it is a first pusher, the length can be set to match the axial length of the winding needle 3. At the same time, a notch 401 is formed on the pressing plate 4. If the pressing plate 4 includes at least two main boards spaced and arranged along the axial direction of the winding needle, the interval between the two adjacent main boards forms a notch 401 connected to the pressing space 302. The second pusher 7 is used to be opposite to the notch 401 on the pressing plate 4 and to be embedded in the notch 401. The second pusher 7 can also be a pusher, such as a second pusher, and its length can match the length of the notch 401 on the pressing plate 4.

[0053] When the material strip 1 is fixed, the first material pusher 6 moves radially along the winding needle 3 and approaches the winding needle 3, and pushes the material strip head section 1' to be inserted into the material pressing groove 301, and pushes the material strip head section 1' to open the pressing plate 4 with the material strip head section 1' and insert it into the material pressing space 302. For example, there is a gap between the pressing plate 4 and the groove side wall A that is smaller than the thickness of the material strip 1, or the edge of the pressing plate 4 has an outer warp that gradually moves away from the groove side wall A, such as the main body of the pressing plate 4 includes the outer warp and the main body connected to the outer warp, when the pressing plate 4 is in a closed state, at least part of the main body is against the groove side wall A, and the outer warp gradually moves away from the groove side wall A, and an expanded space is formed between the groove side wall A for the first material pusher 6 to be inserted. The main body and the outer warping part are connected at an angle. In a preferred embodiment, the angle between the main body plate surface and the outer warping part plate surface can be an obtuse angle. Along the radial direction of the winding needle, the main body gradually approaches the groove side wall A, and the outer warping part gradually moves away from the groove side wall A. In this way, only the part of the main body that is connected to the outer warping part is used to abut against the groove side wall A to press the material strip, reducing the area of ​​the main body used to press the material strip, preventing the first pusher 6 from opening the pressing plate 4 and entering the pressing space from having too large abutting friction area with the main body, preventing the material strip from being damaged due to large friction, and at the same time, it is also conducive to increasing the size of the first pusher 6 extending into the pressing space 302.

[0054] After the winding needle 3 is located at the winding station, the first material pusher 6 is opposite to the expansion space, and the first material pusher 6 moves to push the material strip head section 1' into the expansion space, and then the pressing plate 4 can be smoothly opened, and the material strip head section 1' is pushed into the material pressing space 302 between the pressing plate 4 and the groove side wall A. This section of the material strip 1 is wrapped outside the position where the first material pusher 6 is inserted into the material pressing space 302, and is pressed by the pressing plate 4.

[0055] The second pusher 7 extends into the notch 401, specifically, it can be first extended into the notch 401 on the pressing plate 4, or it can be first extended into the area of ​​the pressing space 302 opposite to the notch 401, such as Figure 4 At this time, the material strip head section 1' in the material pressing space 302 wraps around the two material pushing members.

[0056] When the first pushing piece 6 is pulled outward, the second pushing piece 7 is used to push the material strip 1 pushed into the pressing space 302, which can not only flatten the material strip in the pressing groove 301, but also prevent the first pushing piece 6 from pulling out the material strip 1 due to friction when withdrawing from the pressing groove 301, and prevent the material strip 1 from being carried away by the first pushing piece 6 and escaping from the pressing space 302 and failing to solidify the material, and also prevent the first pushing piece 6 from pulling the material strip 1 when withdrawing, causing wrinkles or local dislocation, etc., which leads to the unevenness of the material strip 1.

[0057] When the first pusher 6 is completely pulled out of the pressing groove 301, at least a part of the second pusher 7 is still located in the pressing groove 301 (for example, the first pusher 6 is pulled out before the second pusher 7 and / or the second pusher 7 is larger than the first pusher 6 in the pressing space 302, as described below), so that the head section 1' of the material strip is still located in the pressing space 302 in a flat and smooth state. At this time, the pressing plate 4 is closed by the push of the first elastic member 5 (when the pressing plate 4 is stretched open, the first elastic member 5 produces elastic deformation, and after the first pusher 6 is pulled out, the first elastic member 5 recovers its deformation and pushes the pressing plate 4) or other power mechanisms, and the head section 1' of the material strip is pressed flatly and smoothly against the groove side wall A, while the second pusher 7 is embedded in the notch 401 on the pressing plate 4 and will not be pressed by the pressing plate 4. At this time, the second pusher 7 is completely withdrawn. Since it is located in the notch 401 and the material strip 1 is pressed by the pressing plate 4, the second pusher 7 will not produce a pulling friction with the pressing plate 4, and will not pull and drive the material strip 1 to cause wrinkles or misalignment. In this way, the head section 1' of the material strip is smoothly fixed on the winding needle 3, and the winding needle 3 can be rotated to form a winding.

[0058] In summary, the winding needle 3 is provided with a pressing groove 301, and the pressing groove 301 has a press plate 4 that can be opened and closed. The press plate 4 opens to allow the material belt 1 to enter, and the press plate 4 closes to press the material belt 1. The opening of the press plate 4 is achieved by the first pusher 6. The first pusher 6 and the second pusher 7 are located on one side of the material belt 1, and the winding needle 3 is located on the other side of the material belt 1. The first pusher 6 pushes the material belt 1 close to the winding needle 3 and opens the press plate 4, pushing the material belt 1 into the pressing space 302, so that the material belt 1 is pushed into the pressing space 302 while the press plate 4 is opened. The second pushing piece 7 is opposite to the notch 401 on the pressing plate 4, and is used to be inserted into the notch 401 or the pressing space 302 opposite to the notch 401, and pushes the material strip 1 that is already in the pressing space 302 when the first pushing piece 6 retracts, to prevent the first pushing piece 6 from pulling out the material strip 1 due to friction when it is pushed out of the pressing groove 301, to prevent the material strip 1 from being carried away by the first pushing piece 6 and causing solidification failure, and to prevent the first pushing piece 6 from pulling out the material strip 1 and causing wrinkles or local dislocation, etc., which may cause the material strip 1 to be uneven, so that the material strip head section 1' is pressed by the pressing plate 4 in a flat and smooth state. Since the second pushing member 7 and the notch 401 of the pressing plate 4 are opposite to each other, the second pushing member 7 can be completely pulled out after the first pushing member 6 has completely left the pressing groove 301. At this time, the material strip 1 has been pressed by the pressing plate 4, and the second pushing member 7 will not generate any pulling friction with the pressing plate 4, and will not pull the material strip 1 to cause wrinkles or misalignment, etc., thus ensuring that the head section 1' of the material strip finally pressed by the pressing plate 4 remains flat and smooth.

[0059] It can be seen that the winding device provided by the present application can firmly and smoothly fix the material strip 1 through the coordinated arrangement of the above-mentioned two pushing members and the pressure plate 4, and effectively prevents the material strip 1 from generating wrinkles or local dislocations, and other adverse conditions that affect the quality of the material roll; compared with the solution of using a single pushing plate to push the material strip 1, it can solve the problem that the material strip 1 is pulled away as the pushing plate is pulled away or generates wrinkles, local dislocations, and other problems that affect product performance; compared with the solution of using vacuum adsorption to fix the material strip 1, vacuum adsorption has unstable air pressure, which can easily cause the material strip 1 to be unstable and generate wrinkles or local dislocations, etc., while the solution of the present application can not only firmly fix the head section 1' of the material strip, but also solve the adverse conditions that the head section 1' of the material strip is prone to generating wrinkles or local dislocations, and other adverse conditions that affect the quality of the material roll.

[0060] At the same time, in the present application, the opening of the pressure plate 4 is achieved by the pushing piece of the material belt 1, and it can be opened while pushing the material. The closing of the pressure plate 4 is preferably achieved by the first elastic piece 5, so the opening and closing of the pressure plate 4 and the entry and exit of the first pushing piece 6 are equivalent to synchronous realization, and the synchronous action is achieved through the linkage of the mechanical structure. Compared with using other mechanisms to open the pressure plate 4, the response is fast and the action is fast. For example, the pressure plate 4 is opened by expanding the airbag 17, and the pressure plate 4 is closed by contracting the airbag 17. It takes time to inflate the airbag 17. The piston is driven by a power part such as a cylinder or a motor to open the pressure plate 4, and the winding needle 3 needs to be moved into the winding station before servo feedback, system control, piston extension and other actions are performed. The operation is time-consuming, and the vacuum adsorption also needs to generate negative pressure only after the winding needle moves into the winding station, and it needs to generate negative pressure sufficient to firmly adsorb the material strip, which also requires a long waiting time. These solutions all require that the control system receives the arrival signal after the winding needle 3 is in the winding station and then controls it, and the mechanism then produces a response action, which requires a long waiting time. However, the solution of the present application can act immediately after the winding needle 3 moves into the winding station, and the pushing and pressing plate 4 opening are equivalent to being realized synchronously. There is no need to wait for inflation, vacuum, and piston extension time. The response is fast, the action is fast, and the time used to fix the material strip 1 can be reduced, so that the winding needle 3 can start winding quickly, thereby improving the winding efficiency.

[0061] As mentioned above, in order to ensure that when the first pushing member 6 is completely and thoroughly pulled out of the pressing groove 301, the second pushing member 7 is still partially located in the pressing groove 301, it can be arranged as follows: The first method: The first pushing member 6 approaches the winding needle 3 before the second pushing member 7, and first pushes the material belt 1 to open the pressing plate 4, and then the second pushing member 7 extends into the pressing groove 301 and is inserted into the notch 401 of the pressing plate 4, and then the first pushing member 6 is pulled out before the second pushing member 7, as shown in the first method. Figure 4As shown; in the second mode, the dimension of the second pushing member 7 extending into the pressing space 302 is set to be larger than that of the first pushing member 6. For example, the first pushing member 6 is used to push the material strip 1 into the first position in the pressing space 302. The second pushing member 7 continues to move after the first pushing member 6 opens the pressing plate 4, and is used to push the material strip 1 into the second position of the pressing space 302. The second position is closer to the central axis of the winding needle 3 than the first position, as shown in FIG. Figure 4 and Figure 5 As shown, the first pushing piece 6 can stop moving after pushing open the pressure plate 4, while the second pushing piece 7 will continue to move. Compared with the first pushing piece 6 being inserted deeper into the pressing groove 301 / pressing space 302, the material strip 1 is pushed deeper, such as close to the axis of the winding needle 3. In this way, the second pushing piece 7 not only has the function of flattening the material strip, but also can prevent it from stopping on the side of the first pushing piece 6, avoids wrinkles when the material strip is pressed, and avoids the material strip from being double-folded and fixed; then, the first pushing piece 6 and the second pushing piece 7 can be withdrawn at the same speed at the same time. In this way, during the withdrawal process, the second pushing piece 7 pushes the material strip 1 to flatten the material strip 1, and the first pushing piece 6 will be completely withdrawn first, so that the material strip 1 is pressed smoothly and flatly, and the second pushing piece 7 is then withdrawn from the notch 401; the third method, the first method and the second method are set at the same time.

[0062] The first pusher 6 can be a first push plate, and the second pusher 7 can be a second push plate. The two can be arranged in parallel, such as the second push plate is located on one side of the first push plate. Figure 3 As shown, in such an embodiment, the second pusher 7 may be set to extend into the pressing space 302 to be larger than the first pusher 6. Figure 1 and Figure 4 As shown, the first pusher 6 is provided with a through slot for accommodating the second pusher 7, the second pusher 7 extends into or is located in the through slot, and the first pusher 6 is sleeved outside the second pusher 7. At the same time, the second pusher 7 can extend from the first pusher 6, as shown in FIG. Figure 5 As shown, the two are displaced successively, or the displacement strokes are different. When the first pusher 6 is set on the second pusher 7, one wraps the other, and when pushing the material strip 1, the material strip 1 is directly wrapped on the outside of the first pusher 6, which is smooth and smooth. Compared with the second pusher 7 which is shorter than the first pusher 6 and is located on the outside of the first pusher 6, it can avoid making the material strip 1 bulge and wrinkle; and, after the first pusher 6 pushes the material strip 1 to open the pressing plate 4, when the second pusher 7 begins to insert into the pressing groove 301, since it is wrapped in the first pusher 6, it can directly push the material forward, and will not squeeze the new material strip 1 that has not been pressed by the pressing plate 4 to enter the pressing groove 301 on the side of the first pusher 6, effectively avoiding the second pusher 7 from wrinkling the material strip 1, ensuring the smoothness of the material strip 1, and improving the quality of winding.

[0063] In a further embodiment, the first pusher 6 and the second pusher 7 are driven by the rotating mechanism and can rotate synchronously on one side of the winding needle 3 coaxially with the winding needle 3. The rotation speed of the winding needle 3 itself, the rotation speed of the first pusher 6 and the second pusher 7 are matched with the conveying speed of the material belt 1, for example, the rotational linear speed of the winding needle 3, the first pusher 6 and the second pusher 7 is made consistent with the conveying speed of the material belt 1. With such a configuration, the pusher can push the tape 1 into the pressing groove 301 for fixation in a relatively static state with the tape 1 and the winding needle 3. On the one hand, it can more effectively avoid the tape 1 from wrinkling during pushing, ensuring the smoothness of the tape 1; on the other hand, the tape fixing operation can be completed during tape walking, and the winding needle 3 and the tape 1 do not need to be static. For example, when the winding needle 3 moves into the winding station, it is not necessary to stop rotating, and the tape 1 does not need to stop conveying. The pusher assembly rotates synchronously with the winding needle 3 after the winding needle 3 moves into the winding station, which is equivalent to the winding having begun. In the initial stage of winding and during the winding process, the tape is cut and the tape head section is fixed. When the tape fixing is completed, a part of the tape has been wound onto the winding needle 3.

[0064] Specifically, in the solution where the pusher can rotate synchronously with the winding needle 3, on this basis, the cutter 8 can also rotate synchronously with the winding needle 3 or rotate to be consistent with the tape running speed. After the winding needle 3 moves into the winding station, it maintains rotation and matches the material tape running speed. The material tape adheres to the surface of the winding needle 3 and winding begins. At the same time, the first pushing piece 6 and the second pushing piece 7 rotate synchronously with the winding needle 3, and the cutter 8 is also consistent with the speed of the material belt. When the winding needle 3, the material belt 1, the cutter 8 and the pushing piece are all at the same speed, the cutter 8 cuts the material belt 1 in a relatively stationary state with the material belt 1 and the winding needle 3. The pushing piece pushes the material belt 1 into the pressing groove 301 in a relatively stationary state as described above, and is pressed by the pressing plate 4, and then moves away from the winding needle 3. During the whole process, the material belt 1 is continuously conveyed, the winding needle 3 and the pushing assembly rotate synchronously with speed matching. The material belt 1 will not produce accumulation, wrinkles, partial overlap, etc., and continuous operation without stopping the machine or material is realized. The belt breaking and fixing operations are completed in the initial stage of winding. Compared with the prior art, there is no need to stop the conveying of the material belt 1 to carry out the material fixing operation, and there is no need for the winding needle 3 to stop rotating first and then start rotating after the material is fixed. The operations of cutting the material belt 1 and fixing the material belt 1 can be achieved during continuous material feeding, which significantly improves the operating efficiency.

[0065] The cutter 8 and the material strip 1 are relatively stationary. The cutter 8 can be set on the surface of the shaft or roller, and rotated under the drive of the shaft or the rotating shaft, so that its linear speed is consistent with the speed of the material strip 1 and the linear speed of the winding needle 3; or, the present application also provides an embodiment, the cutter 8 is set in the pushing assembly, and is arranged in parallel with the first pushing member 6 and the second pushing member 7, and the three are synchronously rotated coaxially and at the same speed on one side of the winding needle 3. In such embodiments, the cutter 8 can cut the material strip 1 at the position where the material strip is about to move out of the winding station and just separates from the winding surface of the winding needle, or a cutting groove 303 for the cutter 8 to be embedded can be set on the surface of the winding needle 3, and the cutting groove 303 is located on one side of the pressing groove 301, and the cutter 8 is inserted into the cutting groove 303 to cut the material strip 1.

[0066] Specifically, a rotatable rotating member is provided on the first frame 2, and the rotating member rotates by being driven by the driving member. The pusher assembly is arranged on the rotating member, and driven by the rotating member, it can rotate synchronously with the winding needle 3 on one side of the winding needle 3 at the winding station. For example, the cutter 8, the first pusher 6 and the second pusher 7 are all arranged on the rotating member and rotate under the same drive.

[0067] In a further embodiment, the first frame 2 is further provided with a track 9 extending along the circumference of the winding needle 3 on the winding station, and the track 9 has at least two convex sections 901 arranged at intervals, and a concave section 902 located in the interval between the convex sections 901, and the concave section 902 is closer to the winding needle 3 than the convex section 901. The pusher assembly rotates along the track 9 driven by the rotating member, and during the rotation, it is guided by the track 9 to move radially relative to the winding needle 3 and approach or move away from the winding needle 3. For example, in the initial state, the pusher assembly is located at the convex section 901. After the winding needle 3 moves into the winding station, the pusher assembly rotates synchronously along the track 9 and the winding needle 3. When it moves to the concave section 902 of the track 9, the pusher assembly will approach the winding needle 3 to cut the material strip 1 and push the material strip 1 into the pressing groove 301 to fix the strip. When the pusher assembly moves out of the concave section 902 and moves into another convex section 901, it will move away from the winding needle 3 to avoid affecting the winding of the material strip 1. With such a configuration, the first pusher 6, the second pusher 7 and the cutter 8 can move closer to and away from the winding needle 3 without the need for additional power parts, which not only simplifies the structure, but also ensures stable and fast power transmission through the transmission and linkage of mechanical parts, without the problem of synchronization being affected by the difference in response of different power parts or the problem of not being fast enough due to the need for response to move. Of course, in some other embodiments, the first pusher 6, the second pusher 7 and the cutter 8 can also be driven by power parts such as motors or cylinders to move closer to and away from the winding needle 3, which will not be described in detail in this article.

[0068] like Figure 1As shown, in some embodiments, the rotating member is a rotating ring 10 disposed on the first frame 2, and an opening is provided on the rotating ring 10 for the winding needle 3 to enter the annular space (i.e., the through hole area in the middle of the rotating ring 10), and a matching opening structure is also provided on the first frame 2. When the winding needle 3 moves to the winding station, the first frame 2 is driven by power to move radially along the winding needle 3 and approach the winding needle 3, so that the winding needle 3 is accommodated in the annular space of the rotating ring 10, and the winding needle 3 and the rotating ring 10 are coaxial.

[0069] The pusher assembly is connected to the rotating ring 10, and the rotating ring 10 is connected to the driving member to drive the pusher assembly and the winding needle 3 to rotate synchronously. Generally, the rotating ring 10 does not need to rotate a full circle. In some embodiments, such as Figure 1 , Figure 6 and Fig. 9 As shown, the first frame 2 is provided with a plurality of transmission wheels 12 arranged to rotate, and the plurality of transmission wheels 12 are distributed on the outer periphery of the rotating ring 10, and are all meshed transmission connected or friction transmission connected with the rotating ring 10; the driving member is transmission connected with at least one transmission wheel 12, and drives the rotating ring 10 to rotate. With such arrangement, even if the rotating ring 10 and the first frame 2 both have a notch 401 for the winding needle 3 to enter, the rotating ring 10 can still rotate a full circle. The transmission wheel 12 can be a gear, and the outer wall of the rotating ring 10 can be correspondingly provided with gear teeth, which are meshed and connected with the transmission wheel 12. Alternatively, the transmission wheel 12 can also be a friction wheel, which abuts against the outer wall of the rotating ring 10, and drives the rotating ring 10 to rotate through friction.

[0070] like Fig. 9 As shown, the driving member can be a motor or the like, and can be connected to any or all of the transmission wheels 12 through a transmission belt. One axial end of the transmission wheel 12 is connected to the rotating ring 10, and the other end is connected to the transmission belt.

[0071] The track 9 is arranged on one side of the rotating ring 10, and a guide member 15 is arranged on the track 9 to move along the track 9. The rotating ring 10 is provided with a base 13, and a guide rod 14 is arranged on the base 13. The guide rod 14 is penetrated through the base 13 and is arranged to slide along the radial direction of the winding needle 3. One end of the guide rod 14 is used to connect the material pusher assembly, and the other end is connected to the guide member 15. In this way, the material pusher assembly can rotate steadily and smoothly with the winding needle 3, and can also generate a displacement close to or away from the winding needle 3 during rotation.

[0072] The track 9 may be a groove structure, the concave section 902 and the convex section 901 are arcuate groove sections extending in an arc shape, and the groove sidewalls of the concave section 902 and the groove sidewalls of the convex section 901 are smoothly connected, and the bottom end of the guide member 15 may also be provided with a slider or roller located in the groove. Alternatively, the track 9 may also be an arcuate slide rail having a plurality of different arcuate sections that are smoothly connected, and the bottom end of the guide member 15 is provided with a slider connected to the arcuate slide rail. In this way, the smooth movement of the guide member 15 on the track 9 is ensured, and the smooth rotation of the pusher assembly is ensured.

[0073] Furthermore, the guide rod 14 may be provided with a second elastic member 16, which is located between the base 13 and the guide member 15, with one end abutting against the base 13 and the other end abutting against the guide member 15. When the guide member 15 moves to the recessed section 902 of the track 9, the material pushing assembly and the guide rod 14 are pulled close to the winding needle 3, so that the second elastic member 16 is elastically deformed. When the guide member 15 moves out of the recessed section 902 and into the raised section 901, the second elastic member 16 recovers its deformation and pushes the guide member 15, so that the guide member 15 moves from the recessed section 902 into the raised section 901 more smoothly.

[0074] In some embodiments, the guide rods 14 and the guide members 15 are arranged one-to-one and at least two groups are arranged, and the first pusher 6 and the second pusher 7 are respectively connected to the two guide rods 14 and independently rotate along the track 9 through different guide members 15. Figure 7 As shown, two guide rods 14 are provided and are respectively recorded as the first guide rod 14' and the second guide rod 14", and two guide members 15 are provided and are respectively recorded as the first guide member 15' and the second guide member 15". The first pusher 6 is connected to the first guide rod 14', which is connected to the first guide member 15', and moves along the track 9 through the first guide member 15', and the second pusher 7 is connected to the second guide rod 14", which is connected to the second guide rod 14", and moves along the track 9 through the second guide member 15". At the same time, in the rotation direction, the first pusher 6 is arranged in front of the second pusher 7, so that the first pusher 6 can enter the recessed section 902 before the second pusher 7, approach the winding needle 3 before the second pusher 7, and move out of the recessed section 902 before the second pusher 7, and will move away from the winding needle 3 before the second pusher 7. Through the arrangement of the track 9 and the rotating ring 10, it is realized that only one power can drive multiple components (the first pusher 6, the second pusher 7, and the cutter 8) to rotate and produce multi-directional displacement in the radial direction. Then, through the arrangement of the base 13 and the guide rod 14, it is realized that only one power can be used to control the structure so that multiple components can move successively. This not only ensures the high degree of synchronization of the rotation of multiple components and the winding needle 3, but also ensures the rapid response and rapid realization of multiple actions. No servo control is required, the response is fast, and the efficiency is improved.

[0075] When the pusher assembly includes a cutter 8, the cutter 8 and the first pusher 6 can be connected to the same guide rod 14. That is, cutting the material strip 1 and pushing the material strip 1 to open the pressing plate 4 can be achieved simultaneously. In this way, the structure can be simplified, the setting of the guide member 15 can be reduced, and the formation of jamming on the track 9 can be avoided.

[0076] Of course, in other embodiments, the rotating member may also be in other structural forms, such as a rotating rod or a rotating seat, which is connected to the rotating shaft and located on the radial side of the rotating shaft. The rotating shaft is used to be coaxial with the rotating shaft 18 of the winding needle 3, the rotating rod or the rotating seat is located on the axial side of the winding needle 3, and the pushing assembly is connected to the rotating rod or the rotating seat and is located on the radial side of the winding needle 3. For example, one end of the first pushing member 6, the second pushing member 7 and the cutter 8 are connected to the rotating rod or the rotating seat.

[0077] In some embodiments, such as Figure 1 As shown, a pressure roller 11 is also provided on the rotating member, and the pressure roller 11 presses the material strip 1 against the surface of the winding needle 3 and rotates synchronously with the winding needle 3. In the direction of rotation, the pressure roller 11 is arranged in front of the first material pusher 6. In the initial state, the pressure roller 11 is closer to the axis of the rotating member than the first material pusher 6. After the winding needle 3 moves to the winding station, the first frame 2 is close to the winding needle 3, and the pressure roller 11 can press the material strip 1 against the winding surface of the winding needle 3, which is convenient for the cutter 8 and the material pusher to cut and push the material strip 1, and avoid wrinkles in the material strip 1.

[0078] Furthermore, a connecting frame is provided on the base 13, and the connecting frame may include an open frame and a rod body for fixing the pressure roller 11. The rod body is inserted through the base 13 and is slidably arranged along the radial direction of the winding needle 3, one end of which has an anti-slip boss and the other end is connected to the open frame; the pressure roller 11 is rotatably arranged on the open frame. A third elastic member is provided between the side of the base 13 close to the winding needle 3 and the connecting frame, and the third elastic member can be sleeved on the rod body, one end of which abuts against the base 13 and the other end of which abuts against the open frame, so that the pressure roller 11 has a displacement in the radial direction of the winding needle 3. In this way, the pressure roller 11 can slightly retract when abutting against the winding needle 3, without causing a rigid collision with the winding needle 3, and compressing the third elastic member to cause it to produce elastic deformation. After the pressure roller 11 moves away from the winding needle 3, the third elastic member recovers and drives the pressure roller 11 to reset.

[0079] When the winding needle 3 is finished, the material roll needs to be unloaded. Therefore, in some embodiments, a driving mechanism for driving the pressing plate 4 to open is also provided in the winding needle 3, so as to open the pressing plate 4 and loosen the material strip head section 1' when unloading. For example, the pressing plate 4 is rotatably arranged by a rotating shaft, and the driving mechanism includes an airbag 17 arranged on one side of the pressing plate 4 in the thickness direction and an air-inflating and air-exhausting assembly connected to the airbag 17. The airbag 17 and the first elastic member 5 are respectively located on both sides of the radial direction of the rotating shaft, and are both used to push the pressing plate 4. The airbag can be strip-shaped, and can be arranged with the same length or substantially the same length as the pressing plate 4. One side can contact the pressing plate 4, and the other side can contact the fixed limiting surface (such as the groove wall inside the winding needle 3 or the plate surface of a separately arranged limiting plate, etc.). When the airbag is inflated and expanded, it is blocked by the limited surface and will push the pressing plate 4 to rotate. Or, the driving mechanism includes a telescopic rod arranged on one side of the pressing plate 4 and a power member such as a motor and a cylinder that drives the telescopic rod to extend and retract. The telescopic rod can be hinged to the pressing plate 4 , and the telescopic rod and the first elastic member 5 are respectively located on both sides of the radial direction of the rotating shaft, and are both used to push the pressing plate 4 .

[0080] In some embodiments, in order to more accurately ensure the synchronization of rotation of the rotating member and the winding needle 3, the driving member is formed by a rotating shaft 18 that rotates with the winding needle 3. After the winding needle 3 moves to the winding station and is coaxial with the rotating member, the rotating shaft 18 is connected to the rotating ring 10 through a power transmission structure. The power transmission structure can switch between a connected state and a disconnected state. When in the connected state, the rotating ring 10 rotates synchronously with the winding needle 3. When in the disconnected state, the winding needle 3 rotates relative to the rotating ring 10.

[0081] Specifically, the power transmission structure includes a first connecting member 19 and a second connecting member 20 that can be connected and separated. The first connecting member 19 is arranged on the winding needle 3 and can rotate synchronously with the winding needle 3. The second connecting member 20 is arranged on the rotating ring 10 and can be displaced to the rotation path of the first connecting member 19, so that the first connecting member 19 can push the second connecting member 20 and drive the rotating ring 10 to rotate synchronously. For example, the second connecting member 20 is telescopically arranged. When extended, it is located on the rotation path of the first connecting member 19. When retracted, it exits the rotation path of the first connecting member 19. At this time, the first connecting member 19 and the second connecting member 20 are separated, and the power transmission is disconnected. The extension and retraction of the second connecting member 20 can be achieved by driving a power member such as a cylinder, a motor, etc.

[0082] The power transmission structure further includes a return member 21, which is used to drive the rotating ring 10 to return to an initial angle and position.

[0083] like Fig.10As shown, the return member 21 includes or is a fourth elastic member, one end of the fourth elastic member is connected to the first frame 2, and the other end is connected to the rotating ring 10. In the initial state, the second connecting member 20 can be in an extended state and located on the rotation path of the first connecting member 19. When the winding needle 3 and the rotating member move to be coaxially opposite, the rotation of the winding needle 3 drives the rotating ring 10 to rotate, and the fourth elastic member generates elastic deformation. When the second connecting member 20 retracts and separates from the first connecting member 19, the rotating ring 10 stops rotating, and the fourth elastic member pulls the rotating ring 10 to rotate in the opposite direction and return to the initial angle and position.

[0084] The first connecting member 19 and the second connecting member 20 can be rod-shaped or block-shaped. The first connecting member 19 can be telescopically arranged relative to the rotating ring 10, such as being telescopically displaced along the radial direction of the rotating ring 10 under the drive of a cylinder or a motor.

[0085] In the above embodiments, the first elastic member, the second elastic member, and the third elastic member may all be compression springs, and the fourth elastic member may be a tension spring.

[0086] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0087] The components and devices involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the drawings. As will be appreciated by those skilled in the art, these components and devices can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, meaning "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The word "such as" used here refers to the phrase "such as but not limited to", and can be used interchangeably with it.

[0088] It should also be noted that in the device and apparatus of the present application, each component can be decomposed and / or reassembled, and such decomposition and / or reassembly should be regarded as an equivalent solution of the present application.

[0089] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0090] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof. The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A winding device, characterized in that: include: A first rack and a second rack, wherein the first rack and the second rack can be close to or far away from each other; A winding needle is rotatably arranged to wind the material strip, and a material pressing groove is provided on the winding surface. The winding needle is arranged on the second frame and moves with the second frame to switch the working position; A pressing plate is movably arranged in the pressing groove, can be in an open state to form a pressing space for the material supply belt to enter, and can be switched to a closed state to press the material belt under the action of the first elastic member or under the push of the power mechanism, and a notch is formed on the pressing plate; A material pushing assembly is arranged on the first frame and can rotate synchronously with the winding needle located on the winding station coaxially so as to push the material tape into the material pressing groove for fixing in a relatively static state with the material tape and the winding needle. The material pushing assembly comprises a first material pushing member and a second material pushing member, both of which can approach or move away from the winding needle in the radial direction of the winding needle. The first material pushing member is used to push the material tape and push the material tape to open the pressing plate. The second material pushing member is opposite to the notch and is used to be embedded in the notch, and can push the material tape located in the material pressing space when the first material pushing member exits the material pressing groove. The opening state of the pressing plate at the winding station is achieved by the first pushing member pushing the material strip to open, and the first pushing member is at least opposite to the section of the pressing plate where the notch is not provided.

2. The winding device according to claim 1, characterized in that The first pushing member approaches the winding needle before the second pushing member, and moves away from the winding needle before the second pushing member, and the pressing plate is in or returns to a closed state through the first elastic member.

3. The winding device according to claim 1, characterized in that The first pushing piece is used to push the material strip into a first position in the pressing space, and the second pushing piece is used to push the material strip into a second position in the pressing space, and the second position is closer to the center axis of the winding needle than the first position.

4. The winding device according to claim 1, characterized in that The pressing plate is rotatably connected to the winding needle via a rotating shaft, and under the action of the first elastic member, it abuts against the groove side wall A of the pressing groove to form a closed state; The edge of the pressing plate has an outward warping portion. When the pressing plate is in a closed state, the outward warping portion and the groove side wall A form an expanded space for the first pusher to be inserted.

5. The winding device according to claim 1, characterized in that The first pushing member and the second pushing member are arranged in parallel; or, the first pushing member is provided with a through groove for accommodating the second pushing member so as to be sleeved on the second pushing member, and the second pushing member can extend from the first pushing member.

6. The winding device according to claim 1, characterized in that The first pushing member is a first pushing plate, the second pushing member is a second pushing plate, the pushing assembly further comprises a cutter for cutting the material strip, and the surface of the winding needle is further provided with a cutting groove for the cutter to be embedded.

7. The winding device according to claim 6, characterized in that The first frame is provided with a rotatable rotating member, the pusher assembly is arranged on the rotating member, and driven by the rotating member, it can rotate synchronously with the winding needle on one side of the winding needle on the winding station.

8. The winding device according to claim 7, characterized in that The first frame is also provided with a track extending along the circumference of the winding needle on the winding station, and the track has at least two raised sections arranged at intervals, and a recessed section located in the intervals between the raised sections. The pushing assembly rotates along the track under the drive of the rotating member, so that during rotation, it is guided by the track to radially displace relative to the winding needle and approach or move away from the winding needle.

9. The winding device according to claim 8, characterized in that The rotating member is a rotating ring, and a notch is provided on the rotating ring for the winding needle to enter the annular space. The pushing assembly is connected to the rotating ring, and the rotating ring is transmission-connected with a driving member to drive the pushing assembly and the winding needle to rotate synchronously.

10. The winding device according to claim 8, characterized in that The track is arranged on one side of the rotating member, and the rotating member is provided with a base and a guide rod penetrating the base and slidingly arranged along the radial direction of the winding needle. One end of the guide rod is used to connect the pushing assembly, and the other end is connected to a guide member. The guide member is arranged on the track and is used to move along the track to drive the pushing assembly to move radially along the winding needle.

11. The winding device according to claim 10, characterized in that The guide rod is provided with a second elastic member, which is located between the base and the guide member and pushes the guide member when the guide member moves from the recessed section into the raised section.

12. The winding device according to claim 10, characterized in that The guide rods and the guide members are arranged one by one and at least two groups are arranged, and the first pusher and the second pusher are respectively connected to the two guide rods to rotate along the track respectively; In the rotation direction, the first pushing member is located in front of the second pushing member, so as to approach the winding needle before the second pushing member and to move away from the winding needle before the second pushing member.

13. The winding device according to claim 10, characterized in that When the pusher assembly includes a cutter, the cutter and the first pusher are connected to the same guide rod; the cutter is located behind the first pusher in the rotation direction; and in the radial direction of the rotating member, the first pusher is closer to the axis of the rotating member than the cutter.

14. The winding device according to claim 10, characterized in that The track is a groove structure, the groove side walls of the recessed section and the raised section are smoothly connected, and the bottom end of the guide member is provided with a slider or a roller located in the groove.

15. The winding device according to claim 8, characterized in that The rotating member is also provided with a rotatably connected pressing roller, which is used to press the material strip against the surface of the winding needle and rotate synchronously with the winding needle.

16. The winding device according to claim 15, characterized in that The rotating member is provided with a base and a connecting frame which penetrates the base and is slidably arranged along the radial direction of the winding needle. The pressure roller is rotatably arranged on the connecting frame, and a third elastic member is arranged between the side of the base close to the winding needle and the connecting frame. The third elastic member pushes the pressure roller to return to its original position when the pressure roller moves away from the winding needle.

17. The winding device according to claim 1, characterized in that A driving mechanism for driving the pressure plate to open is also provided in the winding needle, so as to open the pressure plate and release the material belt when unloading.

18. The winding device according to claim 17, characterized in that The pressing plate is rotatably arranged, and the driving mechanism comprises an air bag for pushing the pressing plate and an air-inflating and air-exhausting assembly connected to the air bag.

19. The winding device according to claim 9, characterized in that The first frame is provided with a plurality of rotatable transmission wheels, which surround the outer circumference of the rotating ring and are meshed transmission connected or friction transmission connected with the rotating ring; the driving member is transmission connected to at least one of the transmission wheels to drive the rotating ring to rotate.

20. The winding device according to claim 9, characterized in that The rotating shaft that drives the winding needle to rotate forms the driving member and is connected to the rotating ring through a power transmission structure. The power transmission structure can switch between a connected state and a disconnected state. When in the connected state, the rotating ring rotates synchronously with the winding needle. When in the disconnected state, the winding needle rotates relative to the rotating ring.

21. The winding device according to claim 20, characterized in that The power transmission structure comprises: A first connecting member, disposed on the winding needle and capable of rotating synchronously with the winding needle; A second connecting member is disposed on the rotating ring and can be displaced to the rotating path of the first connecting member, so that the first connecting member can push the second connecting member to drive the rotating ring to rotate synchronously; The return member drives the rotating ring to return to the initial position.

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