Coiling apparatus and method of use thereof

Abstract

The application relates to the technical field of very thin strip winding, in particular to a winding device and a use method thereof. The winding device comprises a mandrel, an adjusting structure, a plurality of contact plates and a radial contraction structure. The adjusting structure is sleeved on the mandrel and is threadedly connected with the mandrel; the plurality of contact plates are arranged along the circumference of the mandrel and can contract along the radial direction of the mandrel; the radial contraction structure is sleeved on the mandrel and is connected with the adjusting structure and the contact plates respectively; the adjusting structure is configured with a first working state and a second working state; in the first working state, the adjusting structure is locked with the radial contraction structure and rotates synchronously with the mandrel to realize winding of work materials; in the second working state, the adjusting structure is unlocked with the radial contraction structure, at this time, the adjusting structure slides along the axial direction of the mandrel and drives the plurality of contact plates to slide along the radial direction of the mandrel through the radial contraction structure; the winding device is simple in structure and can solve the problems of easy loose winding and low winding efficiency of the winding device.

Description

Technical Field

[0001] This application relates to the field of ultra-thin tape winding technology, specifically to a winding device and its usage method. Background Technology

[0002] In high-end manufacturing, ultra-thin strips (typically less than 0.1 mm thick) are key foundational materials supporting future technologies. The winding process is crucial in ultra-thin strip production, and tension control is the core element of this process. Due to their extreme thinness, low yield strength, and susceptibility to plastic deformation, ultra-thin strips require constant and appropriate tension during winding. Insufficient tension or poor inner coil adhesion can easily lead to interlayer slippage, loose winding, or tapered defects; excessive or uneven tension can cause edge wavy patterns or even tearing. Therefore, the winding mechanism not only needs to rotate stably and synchronously to provide winding power but also needs to establish a firm and uniform circumferential fit with the inner coil of the strip. This is a necessary prerequisite for maintaining stable tension, ensuring neat roll shape, and achieving high product yield.

[0003] Existing technology for winding equipment used in the production of ultra-thin strips includes mechanical expansion and contraction winding equipment. Mechanical expansion and contraction winding equipment typically includes a drive motor, a mandrel connected to the motor, and an expansion and contraction drum sleeved on the mandrel. It usually requires a separate set of air cylinders or hydraulic cylinders inside the mandrel to push the drum to move radially, thereby expanding or shrinking the drum diameter.

[0004] However, the existing mechanical expansion and contraction structure mentioned above relies on two completely independent mechanical systems for rotation drive and drum diameter adjustment, resulting in a complex overall structure, large size, high manufacturing cost, and difficult subsequent maintenance. Summary of the Invention

[0005] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This part of the invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0007] Therefore, a first aspect of the present invention provides a winding device.

[0008] A second aspect of the present invention provides a method of using a winding device.

[0009] In view of the above, a method comprising: is proposed according to a first aspect of the embodiments of this application. mandrel; An adjustment structure is sleeved on the mandrel and threadedly connected to the mandrel. Multiple contact plates are arranged circumferentially along the mandrel and are retractable radially along the mandrel. The contact plates are used to mount the workpiece to be rolled. A radially contracting structure is sleeved on the mandrel and is connected to the adjusting structure and the contact plate respectively. The adjustment structure is configured with a first working state and a second working state. In the first working state, the adjustment structure is locked with the radial shrinkage structure and rotates synchronously with the mandrel to achieve the winding of the work material. In the second working state, the adjustment structure is released from the radial shrinkage structure. At this time, when the adjustment structure is driven to slide along the axial direction of the mandrel, it can drive multiple contact plates to slide radially along the mandrel through the radial shrinkage structure to achieve the adjustment of the working diameter.

[0010] In one feasible implementation, the adjustment structure includes: An adjusting mandrel is sleeved on the mandrel and threadedly connected to the mandrel; A locking nut is fitted onto the adjusting rotor and threadedly connected to it.

[0011] In one feasible implementation, the radially contracting structure includes: Contact head, each of the contact plates is provided with a contact head; Each contact head is hinged with at least two of the movable rods; A support rotating core is sleeved on the adjusting rotating core, and a locking nut can lock or loosen the position of the support rotating core.

[0012] In one feasible implementation, the radial contraction structure further includes: A reel, which is sleeved on the end of the mandrel, and a boss is provided on the end face of the reel near the workpiece; A cylindrical pressure plate is sleeved on the mandrel and connected to the boss. The cylindrical pressure plate also has multiple pressing edges on its circumferential sidewalls. Each pressing edge corresponds to a contact head and is located between two movable rods.

[0013] In one feasible implementation, the radial contraction structure further includes: The first limiting plate is a ring structure and is sleeved on the outer periphery of the boss. A connecting post is provided on the first limiting plate and a connecting groove corresponding to the connecting post is provided on the boss. The second limiting plate is a ring structure and is sleeved on the outer periphery of the plurality of movable rods. The second limiting plate is provided with a connecting plate corresponding to the connecting post. The second limiting plate, the first limiting plate, and the reel are fixedly connected.

[0014] In one feasible implementation, it further includes: Mounting base; A pressing structure is provided on the upper side of the mounting base and located above the radial shrinking structure. The pressing structure is used to cooperate with the radial shrinking structure to realize the winding of the work material.

[0015] In one feasible implementation, the pressing structure includes: A bracket is disposed on the mounting base and connected to the mounting base via a cantilever column. The bracket is provided with a first central elongated hole, which is arranged in a vertical direction. A guide box is disposed on the bracket, and the guide box is provided with a second central elongated hole corresponding to the first central elongated hole; The landing plate is connected to the first central elongated hole and the second central elongated hole in sequence by movable bolts.

[0016] In one feasible implementation, it further includes: The motor is mounted on the top of the mounting base, and the motor is connected to the mounting base via a first support. The output shaft of the motor is connected to the spindle via a coupling. A first bearing is sleeved on the mandrel and located between the coupling and the adjusting mandrel. The first bearing is connected to the mounting base via a second support. The second bearing is sleeved on the end of the mandrel and is connected to the mounting base via a third support. A second aspect of the embodiments of this application provides a method of using a winding device, comprising the following steps: Switch the adjustment structure to the second working state and drive the adjustment structure to slide along the axial direction of the mandrel, thereby driving the contact plate to move radially along the mandrel through the radial shrinkage structure, so that the working diameter of the contact plate is adjusted to a size that matches the material to be wound. The work material to be wound is wound around the outer periphery of the plurality of contact plates; The adjustment structure is switched to the first working state, so that the adjustment structure rotates synchronously with the mandrel, and drives the radial shrinkage structure and the contact plate to rotate synchronously, so as to achieve the winding of the work material; The adjustment structure is switched to the second working state, and the adjustment structure is driven to slide along the axial direction of the mandrel. This causes the contact plate to retract radially inward along the mandrel through the radial contraction structure, thereby causing the workpiece to separate from the contact plate. Remove the workpiece from the mandrel.

[0017] In one feasible implementation, it further includes: Before switching the adjustment structure to the second working state, first loosen the locking nut to relax the support rotating core, then rotate the adjustment rotating core and slide the adjustment rotating core along the axial direction of the spindle; Before switching the adjustment structure to the first working state, first tighten the locking nut to lock the support rotating core, and then drive the spindle to rotate so that the adjustment rotating core, the support rotating core and the spindle rotate synchronously.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects: The winding device provided in this application embodiment achieves the integration and on-demand switching of two different mechanical functions, namely follow-up rotation and diameter adjustment, through the coordinated cooperation of the adjustment structure and the radial shrinkage structure. In the first working state, the adjustment structure is locked as a follower, which directly transmits the rotational torque input by the mandrel to the radial shrinkage structure and multiple contact plates, thereby driving the work material to rotate synchronously and achieve winding. When it is necessary to load or unload, the device switches to the second working state. At this time, the mandrel remains stationary, and the operator drives the adjustment structure to rotate relative to the fixed mandrel. The rotational motion is converted into linear movement of the adjustment structure along the mandrel axis by the threaded pair between the two. This axial displacement is then realized through the action of the radial shrinkage structure, realizing the synchronous radial movement of multiple contact plates. At this time, depending on the different axial movement directions of the adjustment structure, the contact plates can be expanded or contracted along the radial direction. Therefore, the working diameter of the winding device can be adjusted to adjust multiple contact plates to a suitable working position according to the size of the work material to be wound. In summary, this winding equipment can solve the problems of loose winding and low winding efficiency caused by poor adhesion when winding ultra-thin tapes. In addition, this winding equipment also simplifies the complexity of existing machinery and reduces the size of the equipment.

[0019] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of the overall structure of the winding device according to the first embodiment of this application; Figure 2 A schematic diagram of the structure of the inner ring tensioning unit of the winding device according to the first embodiment of this application; Figure 3 A schematic diagram of the cylindrical pressure plate in the winding device of the first embodiment provided in this application; Figure 4 A schematic diagram of the core-supporting structure in the winding device according to the first embodiment of this application; Figure 5 A schematic diagram of the adjusting core structure in the winding device of the first embodiment provided in this application; Figure 6 A schematic diagram of the reel structure in the winding device of the first embodiment provided in this application; Figure 7 A schematic diagram of the first limiting plate structure in the winding device of the first embodiment provided in this application; Figure 8 A schematic diagram of the second limiting plate in the winding device of the first embodiment provided in this application; Figure 9 A schematic diagram of the installation of the adjusting rotor and the supporting rotor in the winding device of the first embodiment provided in this application; Figure 10 A schematic diagram of the mandrel installation in the winding device of the first embodiment provided in this application; Figure 11 A schematic diagram of the mandrel structure in the winding device of the first embodiment provided in this application; Figure 12 A schematic diagram of the pressing structure in the winding device of the first embodiment provided in this application; Figure 13 A schematic diagram of the lifting plate structure in the winding device of the first embodiment provided in this application; Figure 14 A schematic diagram of the support structure in the winding device of the first embodiment provided in this application; Figure 15 A schematic diagram of the guide box structure in the winding device of the first embodiment provided in this application; Figure 16A schematic diagram of the bearing and mounting base installation in the winding device of the first embodiment provided in this application.

[0021] in, Figures 1 to 16 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1. Pressing structure; 10. Lifting plate; 101. Central circular hole; 11. Bracket; 111. First central elongated hole; 12. Guide box; 121. Second central elongated hole; 13. First gasket; 14. Second gasket; 15. Thin nut; 16. Movable bolt; 17. Connecting bolt; 18. Fixing bolt; 20. Radial contraction structure; 200. Cylindrical pressure plate; 2000. Diagonal countersunk hole; 2001. Pressing edge; 201. Support rotating core; 2010. Central connecting hole; 2011. Rotating edge; 202. Reel; 203. Contact plate; 204. Contact head; 205. Movable rod; 2021. Pressure plate mounting hole; 2022. Positioning hole; 2023. Connecting... 1. Groove; 2024. Limiting plate connecting hole; 206. First limiting plate; 2061. Connecting column; 207. Second limiting plate; 2071. Connecting plate; 21. Adjustment structure; 210. Adjusting rotating core; 211. Coarse diameter optical shaft section; 212. Fine diameter fixed section; 213. Locking nut; 214. Fixed external thread; 30. Mandrel; 31. First bearing; 32. Second bearing; 33. Motor; 34. Coupling; 35. Mandrel external thread; 36. Positioning point; 37. First bearing connection point; 38. Second bearing connection point; 4. Mounting base; 40. Second support seat; 41. Third support seat; 42. First support seat; 43. Cantilever column; 5. Materials. Detailed Implementation

[0022] The following description provides numerous specific details to offer a more thorough understanding of the technical solutions provided by this invention. However, it will be apparent to those skilled in the art that the technical solutions provided by this invention can be implemented without one or more of these details.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0024] Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0025] To better understand the above technical solutions, the technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0026] like Figure 1 and Figure 2 As shown, a winding device is proposed according to a first aspect of the embodiments of this application, including a mandrel 30, an adjusting structure 21, a plurality of contact plates 203, and a radial shrinking structure 20. The adjusting structure 21 is sleeved on the mandrel 30 and threadedly connected to it. The plurality of contact plates 203 are arranged circumferentially along the mandrel 30 and can shrink radially along the mandrel 30, serving to mount the workpiece to be wound. The radial shrinking structure 20 is sleeved on the mandrel 30 and connected to both the adjusting structure 21 and the contact plates 203. The adjusting structure 21 is configured with a first working state and a second working state. In the first working state, the adjusting structure 21 is locked to the radial shrinking structure 20 and rotates synchronously with the mandrel 30 to achieve winding of the workpiece. In the second working state, the adjusting structure 21 is released from the radial shrinking structure 20, and the adjusting structure 21 slides axially along the mandrel 30, driving the plurality of contact plates 203 to slide radially along the mandrel through the radial shrinking structure 20, thereby adjusting the working diameter.

[0027] In this technical solution, the mandrel 30 is horizontally positioned, serving as the load-bearing and rotation center of the entire device. The adjusting structure 21 is coaxially sleeved on the outer periphery of the middle part of the mandrel 30. The movable connection between the adjusting structure 21 and the mandrel 30 is achieved through a precision threaded pair, allowing the adjusting structure 21 to not only rotate synchronously with the mandrel 30 but also to undergo precise displacement along the axial direction of the mandrel 30. Multiple contact plates 203 are evenly arrayed along the circumference of the mandrel 30, and to support the workpiece 5, the contact plates 203 are arc-shaped. The radial contraction structure 20 is coaxially positioned outside the mandrel 30, with one end engaging with the adjusting structure 21 and the other end connecting to the contact plate 203. When the adjusting structure 21 is locked with the radial shrinking structure 20, the adjusting structure 21 rotates synchronously with the mandrel 30, thereby driving the contact plate 203 to rotate together, realizing the winding of the work material; when the adjusting structure 21 is released from the radial shrinking structure 20, the adjusting structure 21 moves axially along the mandrel 30, and this axial displacement is converted into the radial movement of the contact plate 203 through the radial shrinking structure 20, thereby changing the diameter of the working circumscribed circle enclosed by each contact plate 203, realizing the adjustment of the working diameter of the entire winding equipment.

[0028] Understandably, this solution achieves the integration and on-demand switching of two different mechanical functions—follow-up rotation and diameter adjustment—through the coordinated operation of the adjustment structure 21 and the radial shrinkage structure 20. In the first working state, the adjustment structure 21 is locked as a follower, directly transmitting the rotational torque input from the mandrel 30 to the radial shrinkage structure 20 and multiple contact plates 203, thereby driving the workpiece 5 to rotate synchronously and achieve winding. When loading or unloading is required, the equipment switches to the second working state. At this time, the mandrel 30 remains stationary, and the operator drives the adjustment structure 21 to rotate relative to the fixed mandrel 30. The rotational motion is converted into linear movement of the adjustment structure 21 along the axial direction of the mandrel 30 by the threaded pair between the two. This axial displacement, through the action of the radial shrinkage structure 20, achieves synchronous radial movement of multiple contact plates 203. At this time, depending on the different axial movement directions of the adjustment structure 21, the contact plates 203 can expand or contract along the radial direction. Therefore, the working diameter of the winding equipment can be adjusted to adjust multiple contact plates 203 to a suitable working position according to the size of the workpiece to be wound. In summary, this winding equipment can solve the problems of loose winding and low winding efficiency caused by poor adhesion when winding ultra-thin tapes. In addition, this winding equipment also simplifies the complexity of existing machinery and reduces the size of the equipment.

[0029] like Figure 3 , Figure 5 and Figure 9As shown, in one feasible embodiment, the adjusting structure 21 includes an adjusting core 210 and a locking nut 213. The adjusting core 210 is sleeved on and threadedly connected to the spindle 30; the locking nut 213 is sleeved on and threadedly connected to the adjusting core 210.

[0030] In this technical solution, the adjusting core 210 is a non-standard stepped hollow bolt part. The section near the bolt head is the coarse diameter optical axis section 211, and the section away from the bolt head is the fine diameter fixed section 212. The outer surface of the fine diameter fixed section 212 is machined with a fixed external thread 214. The locking nut 213 is threadedly connected to the fixed external thread 214. The adjusting core 210 is a hollow structure as a whole, and its inner surface is machined with an adjusting internal thread. The adjusting core 210 is threadedly connected to the mandrel external thread 35 on the outer surface of the mandrel 30 through the adjusting internal thread.

[0031] Understandably, this non-standard stepped hollow bolt design provides a reliable installation reference and sliding space for the subsequent radial shrinkage structure 20 through the coarse-diameter optical axis section 211. On the other hand, the threaded engagement between the fine-diameter fixed section 212 and the locking nut 213 enables rapid locking and unlocking of the internal components. At the same time, the threaded engagement between the adjusting core 210 and the mandrel 30 can convert rotational motion into linear motion, and the threaded pair has self-locking characteristics, ensuring that no unexpected axial displacement occurs in the first working state (follow-up rotation), thus guaranteeing the stability of the winding process.

[0032] like Figure 2 , Figure 4 As shown, in one feasible embodiment, the radial contraction structure 20 further includes: a contact head 204, a movable rod 205, and a support rotating core 201. Each contact plate 203 is provided with a contact head 204; each contact head 204 is hinged with at least two movable rods 205, which are respectively located on both sides of the contact head 204; the support rotating core 201 is sleeved on the adjusting rotating core 210, and the support rotating core 201 is slidably connected to the adjusting structure 21. A locking nut 213 can lock or loosen the position of the support rotating core 201. The adjusting structure 21, the radial contraction structure 20, and the multiple contact plates 203 together constitute the inner ring tensioning unit.

[0033] In this technical solution, the center of the support rotating core 201 is provided with a central connecting hole 2010 for connecting with the coarse-diameter optical axis section 211. The support rotating core 201 is connected to the coarse-diameter optical axis section 211 through the central connecting hole 2010. The central connecting hole 2010 adopts a positive tolerance, while the coarse-diameter optical axis section 211 of the adjusting rotating core 210 adopts a negative tolerance, ensuring that the coarse-diameter optical axis section 211 can pass through the central connecting hole 2010. The outer periphery of the support rotating core 201 is also provided with corresponding contact heads 204. The rotating edge 2011 has multiple rotating edges 2011 evenly distributed around the circumference of the supporting rotating core 201, and through holes are provided on the rotating edge 2011; one end of the movable rod 205 is hinged to the supporting rotating core 201 through the through hole, and the other end of the movable rod 205 is hinged to the contact head 204; in order to ensure that the movement of each hinged part is flexible and without jamming, the hinge hole and hinge shaft between the movable rod 205 and the contact head 204, as well as the hinge hole and hinge shaft between the movable rod 205 and the rotating edge 2011, are all clearance fit.

[0034] Understandably, the linkage mechanism formed by the supporting rotating core 201, the movable rod 205, and the contact head 204 in this technical solution can stably and synchronously convert the minute linear displacement of the adjusting structure 21 along the axial direction of the spindle 30 into the radial expansion or contraction motion of multiple contact plates 203. The diameter of the working circumscribed circle enclosed by the contact plates 203 can be continuously adjusted within the design range, which can adapt to the requirements of ultra-thin strip curling of different specifications and enhance the versatility of the equipment.

[0035] like Figure 3 , Figure 6 and Figure 11 As shown, in one feasible embodiment, the radial shrinkage structure 20 further includes: a reel 202 and a cylindrical pressure plate 200. The reel 202 is fixedly sleeved on the end of the mandrel 30, and a boss is provided on the end face of the reel 202 near the workpiece; the cylindrical pressure plate 200 is sleeved on the mandrel 30 and connected to the boss. A plurality of pressure edges 2001 are also provided on the circumferential sidewall of the cylindrical pressure plate 200. The pressure edges 2001 correspond to each contact head 204 and are located between two corresponding movable rods 205.

[0036] In this technical solution, the reel 202 is a stepped disc with a positioning hole 2022 at the center of its boss for the mandrel 30 to pass through. The portion of the mandrel 30 passing through the positioning hole 2022 has a corresponding positioning point 36. The positioning hole 2022 adopts a positive tolerance, while the positioning point 36 of the mandrel 30 adopts a negative tolerance, so that a slight gap is left between the two after assembly to facilitate installation. A pressure plate mounting hole 2021 corresponding to the cylindrical pressure plate 200 is also provided on the boss. An end cap is also fixedly installed on the end face of the reel 202 away from the workpiece. The reel 202 is positioned by the end cap and sleeved on the mandrel 30. The cylindrical pressure plate 200 is provided with a diagonal countersunk hole 2000 corresponding to the pressure plate mounting hole 2021. The pressure plate mounting hole 2021 and the diagonal countersunk hole 2000 are aligned to connect the reel 202 and the cylindrical pressure plate 200. The pressing edge 2001 of the cylindrical pressure plate 200 is inserted and limited between the two movable rods 205 corresponding to the same contact head 204, so that the movable rods 205 can synchronously drive the cylindrical pressure plate 200 to rotate when they rotate around the mandrel 30 with the support rotating core 201.

[0037] Understandably, in this scheme, the reel 202 is axially positioned with the spindle 30 through the end cap; the cylindrical pressure plate 200 is connected to the reel 202 through the diagonal countersunk holes 2000; the pressure edge 2001 on the cylindrical pressure plate 200 is embedded between the movable rods 205, so that the cylindrical pressure plate 200 and the radial shrinking structure 20 can achieve torque transmission and motion restriction. This not only realizes the synchronous rotation of the cylindrical pressure plate 200 and the supporting rotating core 201 to transmit torque, but also effectively restricts the swing of the movable rods 205, improving the overall stability of the radial shrinking structure.

[0038] In one feasible embodiment, the radial contraction structure 20 further includes: a first limiting plate 206 and a second limiting plate 207. The first limiting plate 206 is an annular structure, sleeved on the outer periphery of the boss, and has a connecting post 2061 on it. A connecting groove 2023 corresponding to the connecting post 2061 is provided on the boss. The second limiting plate 207 is an annular structure, sleeved on the outer periphery of multiple movable rods 205, and has a connecting plate 2071 corresponding to the connecting post 2061 on it. The second limiting plate 207, the first limiting plate 206, and the reel 202 are fixedly connected.

[0039] like Figure 7 , Figure 8As shown, in this technical solution, the connecting post 2061 of the inner ring of the first limiting plate 206 is engaged in the connecting groove 2023 on the outer periphery of the reel boss to achieve circumferential pre-positioning; the second limiting plate 207 is provided with a connecting plate 2071 adapted to the connecting post 2061; during assembly, bolts pass through the connecting plate 2071, the connecting post 2061 and the limiting plate connecting hole 2024 on the reel 202 in sequence to fix the second limiting plate 207, the first limiting plate 206 and the reel 202; the first limiting plate 206 and the second limiting plate 207 are located on both sides of the contact plate 203 and the workpiece 5 respectively, forming an axial clamping on the contact plate 203.

[0040] Understandably, the first limiting plate 206 achieves precise pre-positioning during installation through the snap-fit ​​design of the connecting post 2061 and the connecting groove 2023, greatly reducing the assembly difficulty; the two limiting plates restrict the contact plate 203 and the workpiece 5 within the annular space formed with the reel boss, so that the contact plate 203 can only move radially when it contracts or expands radially, eliminating the axial movement and circumferential offset of the contact plate 203, thereby preventing edge folding or deviation of the ultra-thin strip during the winding process.

[0041] like Figure 10 As shown, in one feasible embodiment, the winding device further includes: a mounting base 4 and a pressing structure 1; wherein the pressing structure 1 is disposed on the upper side of the mounting base 4, the pressing structure 1 is located on one side of the radial shrinking structure 20, and the pressing structure 1 is used to cooperate with the radial shrinking structure 20 to achieve winding of the workpiece 5.

[0042] In this technical solution, the mounting base 4 serves as the load-bearing and installation foundation for the entire winding equipment. A cantilever column 43 is vertically fixed on its upper surface. The cantilever column 43 extends tangentially upward on one side of the radial shrinkage structure 20. The pressing structure 1 is locked to the upper end of the cantilever column 43 by fixing bolts 18, thus being suspended above the radial shrinkage structure 20. At the same time, the pressing structure 1 and the rotating reel 202 below form a corresponding pressing fit.

[0043] Understandably, the cantilever column 43 used in this solution can provide stable support for the pressing structure 1, ensuring that the strip material 5 can be guided and closely adhered to the contact plate 203 during installation.

[0044] like Figure 12 , Figure 13 , Figure 14 , Figure 15As shown, in one feasible embodiment, the pressing structure includes: a bracket 11, a guide box 12, and a lifting plate 10. The bracket 11 is connected to the mounting base 4 via a cantilever column 43, and the bracket 11 has a first central elongated hole 111, which is vertically oriented. The guide box 12 is mounted on the bracket 11, and the guide box 12 has a second central elongated hole 121 corresponding to the first central elongated hole 111. The lifting plate 10 is connected to the first central elongated hole 111 and the second central elongated hole 121 sequentially via movable bolts 16.

[0045] In this technical solution, the support 11 is a rectangular thin plate, and the center of the support 11 has a first central elongated hole 111 opened in the vertical direction; the guide box 12 is an I-shaped part, which is fixed to the support 11 by connecting bolts 17, and the center of the guide box 12 has a second central elongated hole 121 that is directly opposite to the first central elongated hole 111; the landing plate 10 is a cylindrical thin plate, and the center has a central circular hole 101; during assembly, the movable bolt 16 (preferably the bolt for reamed holes according to GB / T27-1988) passes through the thin nut 15, the first washer 13, the central circular hole 101 of the landing plate 10, the second washer 14, the second central elongated hole 121 and the first central elongated hole 111 in sequence. The landing plate 10 achieves the cooperation with the second central elongated hole 121 and the first central elongated hole 111 through the movable bolt 16, so that the landing plate 10 can slide up and down along the length of the elongated hole.

[0046] Understandably, this solution uses a standard reamed hole bolt to fit with a long hole. The size of the smooth rod part of the movable bolt 16 restricts the lateral sway of the lifting plate 10, so that it can only slide up and down in a strictly vertical posture. The setting of the first washer 13 and the second washer 14 reduces the sliding friction area. With the locking of the thin nut 15, it not only ensures the stability of the lifting plate 10 after the position is adjusted, but also makes it easy and flexible to operate when it needs to be lifted or lowered, and realizes a rapid response to the clamping force of the work material.

[0047] like Figure 16 and Figure 10 As shown, in one feasible embodiment, the winding device further includes: a motor 33, a first bearing 31, and a second bearing 32. The motor 33 is disposed on the top of the mounting base 4, and is connected to the mounting base 4 via a first support 42. The output shaft of the motor 33 is connected to the spindle 30 via a coupling 34. The first bearing 31 is sleeved on the spindle 30, located between the coupling 34 and the adjusting structure 21, and is connected to the mounting base 4 via a second support 40. The second bearing 32 is sleeved on the end of the spindle 30, and is connected to the mounting base 4 via a third support 41.

[0048] In this technical solution, both the first bearing 31 and the second bearing 32 are preferably deep groove ball bearings. The spindle 30 is respectively machined with a first bearing connection 37 and a second bearing connection 38, and the two deep groove ball bearings are respectively installed at the corresponding connection points. The outer rings of the first bearing 31 and the second bearing 32 are fixed on the second support 40 and the third support 41 by means of tapered pins and bolts.

[0049] Understandably, the deep groove ball bearings used in this design can withstand both radial and a certain amount of axial force, meeting the combined force requirements during winding. The dual fixing method of tapered pins and bolts makes the installation and disassembly of the first bearing 31 and the second bearing 32 more convenient and quick. Therefore, this winding equipment can not only moderately tighten during winding to maintain a neat roll shape, but also quickly retract during unwinding to achieve easy and damage-free unwinding, solving the industry pain point of difficult unwinding of ultra-thin tapes.

[0050] Specifically, the implementation process of the two working modes of the winding device disclosed in this invention, namely follow-up rotation (first working state) and diameter adjustment (second working state), is as follows: In the follow-up rotation mode, the adjusting core 210 rotates synchronously with the spindle 30. In this mode, tightening the locking nut 213 connects the adjusting core 210 and the supporting core 201, allowing them to rotate synchronously. The motor 33 drives the spindle 30 to rotate via the coupling 34; the spindle 30 drives the adjusting core 210 and the supporting core 201 to rotate; the supporting core 201, based on the connection of the movable rod 205, drives the cylindrical pressure plate 200 and the contact plate 203 to rotate synchronously; thus, it drives the entire inner ring tensioning unit to rotate synchronously, achieving winding follow-up. The adjusting core 210 and the spindle 30 are connected by a threaded pair. Due to the self-locking characteristic of the threaded pair, when the spindle 30 drives the adjusting core 210 to rotate, no unexpected axial movement will occur between the adjusting core 210 and the spindle 30, thereby ensuring the stability of transmission and follow-up.

[0051] In the diameter adjustment mode, the mandrel 30 remains fixed, and the adjusting core 210 moves axially relative to the mandrel 30. This mode is the process of adjusting the working diameter of the inner ring tensioning unit using the adjusting core 210. In this mode, loosening the locking nut 213 allows the adjusting core 210 and the supporting core 201 to move relative to each other, keeping the mandrel 30 fixed. Rotating the adjusting core 210, based on the threaded engagement between the adjusting core 210 and the mandrel 30, causes the adjusting core 210 to move linearly along the axial direction of the mandrel 30, thereby driving the contact plate 203 to extend and retract radially along the mandrel 30, thus adjusting the working diameter of the inner ring tensioning unit. The first limiting plate 206 and the second limiting plate 207 limit the contact plate 203 and the workpiece 5 on the contact plate 203. The contact plate 203 and the workpiece 5 can only slide radially between the first limiting plate 206 and the second limiting plate 207 along the inner ring tensioning unit. The direction and distance of the radial sliding depend on the rotation direction and rotation angle of the adjusting mandrel 210. The working diameter of the inner ring tensioning unit can be precisely adjusted by adjusting the rotation direction and rotation angle of the mandrel 210.

[0052] Therefore, the winding device disclosed in this invention can achieve firm tensioning and easy unwinding of the ultra-thin strip material 5 by adjusting the structure, multiple contact plates 203 and radial shrinkage structure 20 to form an inner ring tensioning unit, thereby solving the problems of poor fit, low winding efficiency and difficult unwinding of ultra-thin strip winding mechanism in the prior art.

[0053] A second aspect of this application provides a method of using the above-described winding device, specifically including the following steps: S1: Adjust the working diameter according to the specifications of material 5.

[0054] The operator manually loosens the locking nut 213 to release the axial lock between the adjusting core 210 and the supporting core 201. The operator then rotates the adjusting core 210 by hand or with a tool to make it slide along the axis of the core 30 and generate axial displacement. This axial displacement is transmitted through the supporting core 201, the movable rod 205 and the contact head 204, and is converted into the synchronous movement of multiple contact plates 203 along the radial direction of the core 30. According to the inner diameter of the workpiece 5 to be wound, the diameter of the working outer circle enclosed by each contact plate 203 is matched with the size of the workpiece 5. S2: Loading materials.

[0055] Lift the lifting plate 10, manually wrap the first end of the strip material 5 to be wound around the outer periphery of the multiple contact plates 203, at least once, and place the two sides of the material 5 between the first limiting plate 206 and the second limiting plate 207. Then lower the lifting plate 10 so that it presses the outer surface of the material 5 with its own weight to prevent the material from loosening during the winding process. S3: Follow-up winding.

[0056] The operator tightens the locking nut 213, causing the locking nut 213 to press against the support rotating core 201, thereby locking the adjusting rotating core 210 and the support rotating core 201 into a whole. The motor 33 is started, and the output shaft of the motor 33 drives the spindle 30 to rotate through the coupling 34. The adjusting rotating core 210 rotates synchronously with the spindle 30, and drives the contact plate 203 and the wound workpiece 5 to rotate together through the locked support rotating core 201 and the movable rod 205. As the spindle 30 rotates continuously, the workpiece 5 is evenly and tightly wound around the outer periphery of multiple contact plates 203. S4: Shrinkage before unloading.

[0057] After winding is complete, turn off motor 33 to stop mandrel 30 from rotating, loosen locking nut 213 again to release the locking between adjusting mandrel 210 and supporting mandrel 201, keep mandrel 30 stationary, and rotate adjusting mandrel 210 in the opposite direction (opposite to the rotation direction in step S1). Adjusting mandrel 210 moves in the opposite direction along the axial direction of mandrel 30, and through supporting mandrel 201, movable rod 205 and contact head 204, drives multiple contact plates 203 to retract radially inward synchronously, so that the workpiece 5 is separated from the contact plate 203; S5: Unwind the roll.

[0058] Manually lift the lifting plate 10, remove the connecting bolts between the first limiting plate 206, the second limiting plate 207 and the reel 202, disengage the mandrel 30 from the coupling 34, release the connection between the first bearing 31 and the first support seat 42 and the second bearing 32 and the second support seat 40, and pull the mandrel 30 together with the bearings on both sides from the side away from the cantilever column 43. At this time, the rolled material 5 together with the first limiting plate 206 and the second limiting plate 207 on both sides moves out along the axial direction of the mandrel 30, completing the unwinding operation.

[0059] The winding equipment provided by this invention has two typical application configurations in the production of ultra-thin strips: The first type is a unidirectional winding configuration: a single winding device works in conjunction with a rolling mill to directly wind up the extremely thin steel strip rolled by the rolling mill to form a finished coil.

[0060] The second configuration is a reversible rolling system: two coiling devices are positioned at the entrance and exit of the rolling mill, respectively, to complete multiple shuttle rolling passes. The workflow is as follows: Initially, the entrance-side coiling device (referred to as coiling device A) carries the steel strip coil to be rolled, while the exit-side coiling device (referred to as coiling device B) is in an unloaded, ready-to-go state. After production begins, coiling device A feeds the steel strip into the rolling mill for the first rolling pass. The rolled steel strip is then coiled by coiling device B as a coiler. When the current pass ends, the steel strip is transferred to coiling device B. Subsequently, the production direction reverses, and coiling device B becomes an uncoiler, feeding the steel strip in the opposite direction into the rolling mill for the second rolling pass. At this time, coiling device A becomes a coiler for coiling. This process repeats, with the steel strip being repeatedly rolled between the two coiling devices A and B until the thickness, performance, and other parameters of the steel strip meet the process requirements, ultimately forming a finished coil on one of the coiling devices.

[0061] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0063] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A winding device, characterized in that, include: mandrel; An adjustment structure is sleeved on the mandrel and threadedly connected to the mandrel. Multiple contact plates are arranged circumferentially along the mandrel and are retractable radially along the mandrel. The contact plates are used to mount the workpiece to be rolled. A radially contracting structure is sleeved on the mandrel and is connected to the adjusting structure and the contact plate respectively. The adjustment structure is configured with a first working state and a second working state. In the first working state, the adjustment structure is locked with the radial shrinkage structure and rotates synchronously with the mandrel to achieve the winding of the work material. In the second working state, the adjustment structure is released from the radial shrinkage structure. At this time, when the adjustment structure is driven to slide along the axial direction of the mandrel, it can drive multiple contact plates to slide radially along the mandrel through the radial shrinkage structure to achieve the adjustment of the working diameter.

2. The winding device according to claim 1, characterized in that, The adjustment structure includes: An adjusting mandrel is sleeved on the mandrel and threadedly connected to the mandrel; A locking nut is fitted onto the adjusting rotor and threadedly connected to it.

3. The winding device according to claim 2, characterized in that, The radial contraction structure includes: Contact head, each of the contact plates is provided with a contact head; Each contact head is hinged with at least two of the movable rods; A support rotating core is sleeved on the adjusting rotating core, and a locking nut can lock or loosen the position of the support rotating core.

4. The winding device according to claim 3, characterized in that, The radial contraction structure further includes: A reel, which is sleeved on the end of the mandrel, and a boss is provided on the end face of the reel near the workpiece; A cylindrical pressure plate is sleeved on the mandrel and connected to the boss. The cylindrical pressure plate also has multiple pressing edges on its circumferential sidewalls. Each pressing edge corresponds to a contact head and is located between two movable rods.

5. The winding device according to claim 4, characterized in that, The radial contraction structure further includes: The first limiting plate is a ring structure and is sleeved on the outer periphery of the boss. A connecting post is provided on the first limiting plate and a connecting groove corresponding to the connecting post is provided on the boss. The second limiting plate is a ring structure and is sleeved on the outer periphery of the plurality of movable rods. The second limiting plate is provided with a connecting plate corresponding to the connecting post. The second limiting plate, the first limiting plate, and the reel are fixedly connected.

6. The winding device according to claim 2, characterized in that, Also includes: Mounting base; A pressing structure is provided on the upper side of the mounting base and located above the radial shrinking structure. The pressing structure is used to cooperate with the radial shrinking structure to realize the winding of the work material.

7. The winding device according to claim 6, characterized in that, The pressing structure includes: A bracket is disposed on the mounting base and connected to the mounting base via a cantilever column. The bracket is provided with a first central elongated hole, which is arranged in a vertical direction. A guide box is disposed on the bracket, and the guide box is provided with a second central elongated hole corresponding to the first central elongated hole; The landing plate is connected to the first central elongated hole and the second central elongated hole in sequence by movable bolts.

8. The winding device according to claim 6, characterized in that, Also includes: The motor is mounted on the top of the mounting base, and the motor is connected to the mounting base via a first support. The output shaft of the motor is connected to the spindle via a coupling. A first bearing is sleeved on the mandrel and located between the coupling and the adjusting mandrel. The first bearing is connected to the mounting base via a second support. The second bearing is sleeved on the end of the mandrel and is connected to the mounting base via a third support.

9. A method of using the winding device based on any one of claims 1-8, characterized in that, Includes the following steps: Switch the adjustment structure to the second working state and drive the adjustment structure to slide along the axial direction of the mandrel, thereby driving the contact plate to move radially along the mandrel through the radial shrinkage structure, so that the working diameter of the contact plate is adjusted to a size that matches the material to be wound. The work material to be wound is wound around the outer periphery of the plurality of contact plates; The adjustment structure is switched to the first working state, so that the adjustment structure rotates synchronously with the mandrel, and drives the radial shrinkage structure and the contact plate to rotate synchronously, so as to achieve the winding of the work material; The adjustment structure is switched to the second working state, and the adjustment structure is driven to slide along the axial direction of the mandrel. This causes the contact plate to retract radially inward along the mandrel through the radial contraction structure, thereby causing the workpiece to separate from the contact plate. Remove the workpiece from the mandrel.

10. The method of use according to claim 9, characterized in that, Also includes: Before switching the adjustment structure to the second working state, first loosen the locking nut to relax the support rotating core, then rotate the adjustment rotating core and slide the adjustment rotating core along the axial direction of the spindle; Before switching the adjustment structure to the first working state, first tighten the locking nut to lock the support rotating core, and then drive the spindle to rotate so that the adjustment rotating core, the support rotating core and the spindle rotate synchronously.

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