A winding-up winding disc and a method of installing the same

Abstract

This invention discloses a winding reel and its installation method, comprising a winding reel body located at both ends of a mandrel, with a winding limiting assembly between their tops; an expansion and contraction plate assembly mounted on the outer wall of the mandrel, and locking assemblies that mate with the winding reel body at both ends of the mandrel; a shaft hole within the winding reel body, a locking groove on the outer side of the shaft hole, a positioning groove on the inner side, an installation groove on the top, and a positioning guide groove on the inner side; the winding limiting assembly includes a fixed frame, a movable lead screw within the fixed frame, a lead screw motor on the top, and guide rollers installed between movable blocks on both sides of the lead screw motor; the expansion and contraction plate assembly includes a telescopic motor, with both ends of the telescopic motor connected to the fixed shaft via telescopic rods and connecting rods, and auxiliary moving assemblies adapted to the positioning guide grooves at both ends of the expansion and contraction plate; this invention achieves winding limiting adjustment by driving the guide rollers to move via the lead screw motor, the expansion and contraction plate assembly can synchronously extend and retract to adapt to different roll diameters, the locking assemblies facilitate quick assembly and disassembly of the winding reel, and the structure is stable.

Description

Technical Field

[0001] This invention specifically relates to a winding reel and its installation method. Background Technology

[0002] In roll-to-roll continuous electroplating production processes, after the metal coil undergoes surface plating in the electroplating tank, it needs to be continuously wound into a roll using a winding reel for easy subsequent transfer, storage, and secondary processing. The electroplated coil surface has a precision electroplated layer, which is thin and has low hardness, making it highly susceptible to defects such as scratches, dents, and plating peeling. Therefore, high requirements are placed on the clamping accuracy, coaxiality, surface protection, and disassembly / replacement efficiency of the winding reel.

[0003] The winding reels used in existing electroplating coil production lines mostly adopt an integral reel structure, with the winding reel and drive spindle connected by a key or multiple sets of bolts for transmission and installation. In actual production, the disassembly and assembly of the winding reel is cumbersome. When changing coils, multiple fastening bolts need to be disassembled and assembled one by one, which is time-consuming and affects the coil change cycle of the entire electroplating production line, reducing production efficiency. The coil limit plates of conventional winding reels are mostly fixed structures, which can only adapt to electroplating coils of a single width. When producing coils of different widths, the entire winding reel needs to be replaced, resulting in poor versatility and high equipment spare parts costs.

[0004] Some existing technologies use an expansion and contraction type winding disc to adapt to the inner hole of the roll material. Although this can achieve the tensioning and fixing of the roll core, the expansion and contraction mandrel is integrated with the winding disc body, resulting in a large overall weight. Furthermore, the lack of a limiting structure between the expansion and contraction mandrel and the winding disc body leads to insufficient stability of the expansion and contraction mandrel during the expansion and contraction process. The roll material is prone to deviation during winding, and disassembling the winding disc and mandrel after the roll is fully wound is time-consuming. At the same time, the internal expansion and contraction structure of the expansion and contraction mechanism is in an unprotected state for a long time, and small objects can easily enter the moving parts, affecting the expansion and contraction of the mechanism, resulting in a high probability of failure and high maintenance costs.

[0005] Therefore, it is necessary to invent a winding reel and its installation method to solve the above problems. Summary of the Invention

[0006] (a) Purpose of the invention

[0007] The purpose of this invention is to provide a winding reel and its installation method.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a winding reel, comprising a winding reel body disposed at both ends of a mandrel, wherein a winding limiting component is installed between the tops of the two winding reels.

[0010] The outer wall of the mandrel is equipped with a plurality of evenly spaced expansion and contraction plate assemblies, which extend and retract on the outer wall of the mandrel. The mandrel is also provided with locking components at both ends that are connected to the winding disc body.

[0011] The winding reel body has a shaft hole, and the outer side of the shaft hole has a plurality of evenly spaced locking grooves, which are adapted to the locking component. The inner side of the shaft hole has a plurality of evenly spaced positioning grooves. The top of the winding reel body also has an installation groove for installing the winding limiting component, and the inner side has a positioning guide groove that matches the expansion and contraction plate component.

[0012] The winding limiting assembly includes a fixing frame mounted on the top of the winding reel body at both ends. The fixing frame is equipped with a movable lead screw. The top of the fixing frame is equipped with a lead screw motor connected to the movable lead screw. The bottom of the fixing frame is mounted on the top of the mounting groove, and a fixing component is also provided on one side of it. The top side of the winding reel body is also equipped with a fixing hole adapted to the fixing component. Movable blocks are mounted on both sides of the lead screw motor, and guide rollers are installed between the bottoms of the two sides of the movable blocks.

[0013] The outer wall of the mandrel is provided with a plurality of evenly spaced transverse grooves. The expansion and contraction plate assembly includes a plurality of telescopic motors disposed in the transverse grooves. Both ends of the plurality of telescopic motors are connected to telescopic rods. Both ends of the telescopic rods are provided with connecting rods. The ends of the connecting rods are commonly inserted into a fixed shaft. The fixed shaft is disposed in a mounting frame at the bottom of the expansion and contraction plate. The bottom of the expansion and contraction plate is provided with a plurality of mounting frames. Both ends of the expansion and contraction plate are provided with auxiliary moving components adapted to the positioning guide grooves.

[0014] Furthermore, the locking assembly includes telescopic grooves disposed at both ends of the spindle, a locking block is installed in the telescopic groove, a plurality of locking springs are installed between the bottom of the locking block and the bottom of the telescopic groove, the locking block is adapted to lock into the locking groove, a limiting frame is provided at the opening of the telescopic groove, and a limiting plate adapted to the limiting frame is provided at the bottom edge of the locking block.

[0015] Furthermore, the locking block has an inclined surface on its mating surface and a flat surface on its back surface, and its overall size does not exceed the internal size of the locking groove.

[0016] Furthermore, the outer walls at both ends of the mandrel are provided with a plurality of evenly spaced positioning protrusions, which are adapted to the positioning grooves and are staggered with the locking components.

[0017] Furthermore, the positioning guide groove has openings on both sides of its bottom, and the inner wall of the positioning guide groove has moving grooves on both sides. The auxiliary moving component is placed in the positioning guide groove and moves. The auxiliary moving component includes an extension rod disposed at the end of the expansion plate. The extension rod has positioning heads on both sides of its end. The positioning heads are adapted to the openings. Both the extension rod and the positioning heads have fixing rods at their ends. Rollers are installed on the outside of the fixing rods. The outer wall of the rollers contacts the bottom of the positioning guide groove and the bottom of the moving groove.

[0018] Furthermore, the movable block is provided with a screw hole adapted to the movable lead screw, a connecting plate extends downward from one end of the movable block, the guide roller is installed between the lower ends of the connecting plates on both sides, the fixing frame is mounted on the top of the mounting groove, and a matching slot is provided at its bottom. An extension plate is provided on one side of the bottom of the fixing frame, and the fixing component is installed in the extension plate. The fixing component is adapted to the fixing hole.

[0019] Furthermore, the fixing assembly includes two sets of stretching grooves disposed within the expansion plate. Each set of stretching grooves is equipped with a fixing head, and each set of fixing heads has a connecting rod at its end. Both sets of connecting rods pass through the bottom through hole of the stretching groove to the outside, and both sets of connecting rods have a handle at their ends. A baffle is also provided outside the through hole on the connecting rod. A fixing spring is also provided between the end of the fixing head and the bottom of the stretching groove, and the fixing spring is disposed outside the connecting rod. A matching limiting structure is provided at the opening of the stretching groove and the edge of the end of the fixing head.

[0020] Furthermore, multiple telescopic motors are evenly installed in the crossbeam at intervals, and the telescopic rods at both ends extend and retract synchronously. Each end of the telescopic rod is provided with a connecting shaft, and both ends of the connecting rod are provided with rotating sleeves that are adapted to the connecting shaft and the fixed shaft. Both ends of the mounting frame are provided with docking ears, and the fixed shaft is placed in the docking ears, that is, the ends of the connecting rods rotate in the same axial direction.

[0021] Furthermore, the multiple expansion and contraction plates extend and retract synchronously, and the outer walls of the expansion and contraction plates are all arc-shaped.

[0022] A method for installing a winding reel includes:

[0023] S1. Multiple telescopic motors are evenly installed in multiple transverse grooves on the outer wall of the mandrel, and telescopic rods are connected to both ends of each telescopic motor. The ends of the telescopic rods are provided with connecting shafts. The rotating sleeve at one end of the connecting rod is sleeved onto the connecting shaft at the end of the telescopic rod, and the rotating sleeve at the other end of the connecting rod is inserted into the fixed shaft. The fixed shaft is placed in the mating ears at both ends of the bottom mounting frame of the expansion plate, thus completing the installation of the expansion plate assembly on the outer wall of the mandrel.

[0024] S2. Install locking blocks in the telescopic grooves at both ends of the mandrel, install multiple locking springs between the bottom of the locking blocks and the bottom of the telescopic groove, and install a limiting frame at the opening of the telescopic groove so that the limiting plate at the bottom edge of the locking block is adapted to the limiting frame for limiting.

[0025] S3. The two winding disc bodies are respectively fitted onto the two ends of the mandrel through the shaft holes, so that the multiple positioning protrusions on the outer walls of the two ends of the mandrel are aligned and engaged with the multiple positioning grooves on the inner side of the shaft hole, so that the auxiliary moving components at both ends of each expansion and contraction plate are placed into the positioning guide grooves on the inner side of the shaft hole, and the locking blocks of each locking component are adapted to lock into the multiple locking grooves on the outer side of the shaft hole.

[0026] S4. Install a movable lead screw inside the fixed frame, install a lead screw motor connected to the movable lead screw on the top of the fixed frame, install the fixing assembly inside the expansion plate on one side of the bottom of the fixed frame, fit the two movable blocks on both sides onto the movable lead screw through screw holes, and install guide rollers between the lower ends of the connecting plates of the two movable blocks; set the assembled fixed frame on the top of the mounting groove on the top of the two winding disc bodies, so that the slot at the bottom of the fixed frame matches the mounting groove, and fix the fixing assembly to the fixing hole on one side of the top of the winding disc body.

[0027] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of the present invention are:

[0028] 1. This invention adopts a separate design for the mandrel and the winding reel body. The two ends of the mandrel are connected to the winding reel body through locking components to achieve quick docking and separation. The locking components use locking springs to drive the locking blocks to automatically lock into the locking slots. The docking surface is set as an inclined surface to facilitate smooth insertion during installation, and the back is set as a flat surface to ensure that it is stable and does not come out after locking. During installation, simply push the mandrel into the shaft hole. The locking blocks are automatically compressed by the spring under the guidance of the inclined surface and spring into the locking slot after reaching the position to complete the locking. During disassembly, simply press the locking blocks to remove them without the need for additional tools. This quick-installation and quick-disassembly structure greatly simplifies the installation and disassembly of the winding reel, reduces the labor intensity of operators, and improves the efficiency of reel changing and maintenance.

[0029] 2. This invention uses a telescopic motor-driven linkage mechanism to achieve synchronous expansion and contraction of the expansion and contraction plates; multiple telescopic motors are evenly installed in the transverse groove, and the telescopic rods at both ends extend and contract synchronously, transmitting power to each expansion and contraction plate through the linkage, so that multiple expansion and contraction plates synchronously move radially away from or towards the mandrel axis; the outer walls of the expansion and contraction plates are all arc-shaped, and the overall outer diameter decreases after contraction, which facilitates loading and unloading of the drum; after unfolding, they uniformly press against the inner wall of the drum, which can be applied to drums with different inner diameter specifications; compared with the traditional air expansion shaft or manual expansion and contraction mechanism, the electric-driven expansion and contraction adjustment of this invention is more precise and labor-saving, effectively solving the trouble of frequently changing the mandrel or manually adjusting due to different drum specifications;

[0030] 3. The present invention provides a winding limiting component between the top of the two winding reel bodies. Its fixing frame is detachably installed on the top of the winding reel body through the fixing component. The lead screw motor drives the moving lead screw to rotate, which drives the moving block and guide roller to move along the axial direction of the winding reel. The guide roller can automatically adjust its position as the winding thickness of the roll increases, applying appropriate limiting and guiding force to the roll, so that the roll is wound evenly and tightly layer by layer, avoiding problems such as looseness, uneven edges or uneven perimeter of the wound roll. The fixing component adopts a spring-driven fixing head that cooperates with the fixing hole, which can realize quick installation and disassembly, while ensuring the stability and reliability of the limiting component during operation.

[0031] 4. The expansion and contraction plate of the present invention is provided with auxiliary moving components at both ends, which cooperate with the positioning guide groove inside the winding disc body to accurately guide and limit the radial expansion and contraction movement of the expansion and contraction plate. The auxiliary moving components are set with the positioning head at the end of the extension rod and the opening. Rollers are installed on both the extension rod and the positioning head. The outer wall of the rollers contacts the bottom of the positioning guide groove and the bottom of the moving groove, respectively, converting sliding friction into rolling friction. This structure not only ensures that the expansion and contraction plate can expand and contract stably along the predetermined trajectory without deviation, but also greatly reduces the frictional resistance during the movement, avoids the phenomenon of jamming during expansion and contraction, and improves the smoothness and reliability of the expansion and contraction action. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the disassembled structure of the winding limiting component of the present invention;

[0035] Figure 3 This is a schematic diagram of the disassembled structure of the winding disc body of the present invention. Figure 1 ;

[0036] Figure 4 This is a schematic diagram of the disassembled structure of the winding disc body of the present invention. Figure 2 ;

[0037] Figure 5 This is a schematic diagram of the disassembled structure of the auxiliary moving component of the present invention;

[0038] Figure 6 This is a schematic diagram of the disassembled locking component structure of the present invention;

[0039] Figure 7 This is a schematic diagram of the expansion and contraction plate assembly and mandrel mounting structure of the present invention;

[0040] Figure 8 This is a schematic diagram of the inner structure of the expansion and contraction plate of the present invention;

[0041] Figure 9 This is a schematic diagram of the telescopic motor and connecting rod mounting structure of the present invention;

[0042] Figure 10 This is a schematic diagram of the disassembled structure of the fixed frame and the movable block of the present invention;

[0043] Figure 11 This is a schematic diagram of the fixed component disassembly structure of the present invention. Figure 1 ;

[0044] Figure 12 This is a schematic diagram of the fixed component disassembly structure of the present invention. Figure 2 .

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Mandrel; 11. Horizontal groove; 12. Positioning protrusion; 2. Winding reel body; 21. Shaft hole; 22. Locking groove; 23. Mounting groove; 24. Positioning guide groove; 241. Opening; 242. Moving groove; 25. Fixing hole; 26. Positioning groove; 3. Rewinding limit assembly; 31. Fixing bracket; 311. Slot; 32. Moving lead screw; 33. Lead screw motor; 34. Fixing assembly; 341. Tension groove; 342. Fixing head; 343. Connecting rod; 344. Through hole; 345. Handle; 346. Baffle; 347. Fixing spring; 35. Moving... 351. Moving block; 352. Screw hole; 353. Connecting plate; 36. Guide roller; 37. Expansion plate; 4. Expansion plate assembly; 41. Telescopic motor; 42. Telescopic rod; 421. Connecting shaft; 43. Connecting rod; 431. Rotating sleeve; 44. Fixed shaft; 45. Expansion plate; 46. Mounting frame; 461. Docking lug; 47. Auxiliary moving assembly; 471. Extension rod; 472. Positioning head; 473. Fixed rod; 474. Roller; 5. Locking assembly; 51. Telescopic groove; 52. Locking block; 53. Locking spring; 54. Limit frame; 55. Limit plate. Detailed Implementation

[0047] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0048] This invention provides, for example Figure 1-12 The shown is a winding reel, including a winding reel body 2 disposed at both ends of a mandrel 1, and a winding limiting component 3 installed between the tops of the two winding reels 2.

[0049] Multiple evenly spaced expansion and contraction plate assemblies 4 are installed on the outer wall of the spindle 1. The multiple expansion and contraction plate assemblies 4 extend and retract on the outer wall of the spindle 1. Locking components 5 that dock with the winding disc body 2 are also provided at both ends of the spindle 1.

[0050] The winding reel body 2 has a shaft hole 21 inside, and a plurality of evenly spaced locking grooves 22 are provided on the outside of the shaft hole 21. The plurality of locking grooves 22 are adapted to the locking component 5. A plurality of evenly spaced positioning grooves 26 are provided on the inside of the shaft hole 21. The top of the winding reel body 2 is also provided with an installation groove 23 for installing the winding limit component 3, and a positioning guide groove 24 matching the expansion and contraction plate component 4 is provided on the inside.

[0051] The winding limiting assembly 3 includes a fixed frame 31 mounted on the top of the winding reel body 2 at both ends. The fixed frame 31 is equipped with a movable lead screw 32. The top of the fixed frame 31 is equipped with a lead screw motor 33 connected to the movable lead screw 32. The bottom of the fixed frame 31 is mounted on the top of the mounting groove 23, and a fixed component 34 is also provided on one side. The top side of the winding reel body 2 is also equipped with a fixing hole 25 adapted to the fixed component 34. Movable blocks 35 are mounted on both lead screw motors 33. A guide roller 36 is installed between the bottoms of the two movable blocks 35.

[0052] The outer wall of the spindle 1 is provided with a plurality of evenly spaced transverse grooves 11. The expansion and contraction plate assembly 4 includes a plurality of telescopic motors 41 disposed in the transverse grooves 11. Both ends of the plurality of telescopic motors 41 are connected to telescopic rods 42. Both ends of the telescopic rods 42 are provided with connecting rods 43. The ends of the connecting rods 43 are commonly inserted into a fixed shaft 44. The fixed shaft 44 is disposed in the mounting frame 46 at the bottom of the expansion and contraction plate 45. The bottom of the expansion and contraction plate 45 is provided with a plurality of mounting frames 46. Both ends of the expansion and contraction plate 45 are provided with auxiliary moving components 47 adapted to the positioning guide grooves 24.

[0053] In this invention, the locking component 5 includes telescopic grooves 51 disposed at both ends of the spindle 1, a locking block 52 is installed in the telescopic groove 51, a plurality of locking springs 53 are installed between the bottom of the locking block 52 and the bottom of the telescopic groove 51, the locking block 52 is adapted to lock into the locking groove 22, a limiting frame 54 is provided at the opening of the telescopic groove 51, and a limiting plate 55 adapted to the limiting frame 54 is provided at the bottom edge of the locking block 52.

[0054] In this invention, the mating surface of the locking block 52 is set as an inclined surface, the back surface is set as a flat surface, and the overall size does not exceed the internal size of the locking groove 22.

[0055] In this invention, the outer walls at both ends of the mandrel 1 are provided with a plurality of evenly spaced positioning protrusions 12, the plurality of positioning protrusions 12 are adapted to the positioning grooves 26, and the plurality of positioning protrusions 12 are staggered with the plurality of locking components 5.

[0056] In this invention, the bottom of the positioning guide groove 24 is provided with openings 241 on both sides, and the inner wall of the positioning guide groove 24 is provided with moving grooves 242 on both sides. The auxiliary moving component 47 is placed in the positioning guide groove 24 and moves. The auxiliary moving component 47 includes an extension rod 471 provided at the end of the expansion plate 45. The extension rod 471 is provided with positioning heads 472 on both sides of the end of the extension rod 471. The positioning heads 472 are adapted to the openings 241. The ends of the extension rod 471 and the positioning heads 472 are both provided with fixing rods 473. Rollers 474 are installed on the outside of the fixing rods 473. The outer wall of the rollers 474 contacts the bottom of the positioning guide groove 24 and the bottom of the moving groove 242.

[0057] In this invention, the movable block 35 is provided with a screw hole 351 adapted to the movable lead screw 32, and a connecting plate 352 extends downward from one end of the movable block 35. The guide roller 36 is installed between the lower ends of the two connecting plates 352. The fixing frame 31 is mounted on the top of the mounting groove 23, and its bottom is provided with a matching slot 311. An extension plate 37 is provided on one side of the bottom of the fixing frame 31. A fixing component 34 is installed in the extension plate 37, and the fixing component 34 is adapted to the fixing hole 25.

[0058] In this invention, the fixing component 34 includes two sets of stretching grooves 341 disposed within the expansion plate 37. Each set of stretching grooves 341 is equipped with a fixing head 342. Each set of fixing heads 342 has a connecting rod 343 at its end. Both sets of connecting rods 343 pass through the bottom through hole 344 of the stretching groove 341 to the outside. Both sets of connecting rods 343 have a handle 345 at their ends. A baffle 346 is also provided outside the through hole 344 on the outside of the connecting rod 343. A fixing spring 347 is also provided between the end of the fixing head 342 and the bottom of the stretching groove 341. The fixing spring 347 is disposed outside the connecting rod 343. A matching limiting structure is provided at the opening of the stretching groove 341 and the edge of the end of the fixing head 342.

[0059] In this invention, multiple telescopic motors 41 are evenly spaced and installed in the crossbeam 11, and the telescopic rods 42 at both ends extend and retract synchronously. The ends of the rods are provided with connecting shafts 421, and the ends of the connecting rods 43 are provided with rotating sleeves 431 that are adapted to the connecting shafts 421 and the fixed shafts 44. The mounting frame 46 is provided with docking ears 461 at both ends, and the fixed shafts 44 are placed in the docking ears 461, that is, the ends of the connecting rods 43 rotate in the same axial direction.

[0060] In this invention, multiple expansion and contraction plates 45 extend and retract synchronously, and the outer walls of the expansion and contraction plates 45 are all arc-shaped.

[0061] Example 1 includes a mandrel 1, a winding reel body 2, a winding limiting assembly 3, an expansion and contraction plate assembly 4, and a locking assembly 5. The mandrel 1 has a winding reel body 2 at each end, and the winding limiting assembly 3 is installed between the tops of the winding reel bodies 2 at both ends. Multiple evenly spaced expansion and contraction plate assemblies 4 are installed on the outer wall of the mandrel 1, and these assemblies extend and retract on the outer wall of the mandrel 1. Locking assemblies 5 are also provided at both ends of the mandrel 1 and are connected to the winding reel body 2.

[0062] Specifically, the winding reel body 2 has a shaft hole 21 inside, and both ends of the mandrel 1 pass through the shaft hole 21 respectively to achieve docking and assembly between the winding reel body 2 and the mandrel 1. The outer side of the shaft hole 21 has a plurality of evenly spaced locking grooves 22, which are adapted to the locking components 5 at both ends of the mandrel 1; the inner side of the shaft hole 21 has a plurality of evenly spaced positioning grooves 23; the top of the winding reel body 2 has a mounting groove 23 for installing the winding limit component 3, the inner side of the winding reel body 2 has a positioning guide groove 24 for matching the expansion and contraction plate component 4, and one side of the top of the winding reel body 2 also has a fixing hole 25 for matching the fixing component 34.

[0063] In this invention, the outer wall of the mandrel 1 is provided with multiple evenly spaced transverse grooves 11. The expansion and contraction plate assembly 4 includes multiple telescopic motors 41 disposed within the transverse grooves 11, with the multiple telescopic motors 41 evenly spaced within the transverse grooves 11; each end of the multiple telescopic motors 41 is connected to a telescopic rod 42, and the telescopic rods 42 at both ends of the same telescopic motor 41 extend and retract synchronously, with a connecting shaft 421 at the end of each telescopic rod 42. Each end of the telescopic rod 42 is provided with a connecting rod 43, and each end of the connecting rod 43 is provided with a rotating sleeve 431 adapted to the connecting shaft 421 and the fixed shaft 44. The connecting shaft 421 and the fixed shaft 44 are respectively fitted into the rotating sleeves 431 at both ends of the connecting rod 43, realizing the rotational connection between the telescopic rod 42 and the connecting rod 43, and between the connecting rod 43 and the fixed shaft 44. The ends of the connecting rods 43 are all connected to a fixed shaft 44, which is located within a mounting frame 46 at the bottom of the expansion and contraction plate 45. The mounting frame 46 has connecting ears 461 at both ends, and the fixed shaft 44 is placed within the connecting ears 461, allowing the ends of the connecting rods 43 to rotate in the same axial direction. Multiple mounting frames 46 are located at the bottom of the expansion and contraction plate 45, and these frames are spaced apart along the length of the plate. The outer wall of the expansion and contraction plate 45 is arc-shaped, and the multiple expansion and contraction plates 45 synchronously expand and contract on the outer wall of the spindle 1. The arc-shaped surfaces of their outer walls together form a winding working surface.

[0064] Specifically, the expansion and contraction plate 45 is provided with auxiliary moving components 47 at both ends, which are adapted to the positioning guide groove 24. The bottom of the positioning guide groove 24 has openings 241 on both sides, and the inner wall of the positioning guide groove 24 has moving grooves 242 on both sides. The auxiliary moving components 47 move within the positioning guide groove 24. Specifically, the auxiliary moving components 47 include an extension rod 471 at the end of the expansion and contraction plate 45, with positioning heads 472 on both sides of the end of the extension rod 471, each positioning head 472 adapted to the opening 241. Both the extension rod 471 and the positioning heads 472 have fixing rods 473 at their ends, and rollers 474 are mounted on the outside of each fixing rod 473. The outer wall of the rollers 474 contacts the bottom of the positioning guide groove 24 and the bottom of the moving groove 242. When the expansion and contraction plate 45 extends or retracts, the auxiliary moving components 47 move along the positioning guide groove 24, and the rollers 474 roll on the bottom of the positioning guide groove 24 and the bottom of the moving groove 242, providing support and guidance for the radial movement of the expansion and contraction plate 45.

[0065] In this invention, the winding limiting assembly 3 includes a fixing frame 31 mounted on the top of the winding reel bodies 2 at both ends. A movable lead screw 32 is provided inside the fixing frame 31, and a lead screw motor 33 connected to the movable lead screw 32 is provided on the top of the fixing frame 31. The lead screw motor 33 drives the movable lead screw 32 to rotate. The bottom of the fixing frame 31 is mounted on the top of the mounting groove 23, and the bottom of the fixing frame 31 has a slot 311 adapted to the mounting groove 23. Through the engaging engagement of the slot 311 with the mounting groove 23, the fixing frame 31 is fixedly positioned on the top of the winding reel bodies 2 at both ends.

[0066] Specifically, an extension plate 37 is provided on one side of the bottom of the fixing frame 31, and a fixing component 34 is installed inside the extension plate 37. A fixing hole 25 adapted to the fixing component 34 is provided on one side of the top of the winding disc body 2. The fixing component 34 includes two sets of stretching grooves 341 disposed in the extension plate 37. A fixing head 342 is installed in each of the two sets of stretching grooves 341. A connecting rod 343 is provided at the end of each of the two sets of fixing heads 342. Both sets of connecting rods 343 extend to the outside through the through hole 344 at the bottom of the stretching groove 341. A handle 345 is provided at the end of both sets of connecting rods 343. A baffle 346 is provided outside the through hole 344 on the outside of the connecting rod 343. A fixing spring 347 is provided between the end of the fixing head 342 and the bottom of the groove of the stretching groove 341. The fixing spring 347 is sleeved on the outside of the connecting rod 343. A matching limiting structure is provided at the groove opening of the stretching groove 341 and the edge of the end of the fixing head 342. During assembly and disassembly, pull the handle 345, which drives the two sets of fixing heads 342 to compress the fixing springs 347 and retract them into the tension groove 341 via the connecting rod 343; after aligning the fixing heads 342 with the fixing holes 25, release the handle 345, the fixing springs 347 will return to their original position, and the fixing heads 342 will be pushed out and locked into the fixing holes 25, thus completing the locking and fixing of the fixing frame 31 and the winding disc body 2.

[0067] Specifically, each side of the fixed frame 31 is provided with a movable block 35. The movable block 35 is provided with a screw hole 351 adapted to the movable screw 32. The movable block 35 is threadedly engaged with the movable screw 32 through the screw hole 351 and moves along its axial direction when the movable screw 32 rotates. One end of the movable block 35 extends downward with a connecting plate 352. The guide roller 36 is installed between the lower ends of the two connecting plates 352 and moves along the axial direction of the movable screw 32 with the two movable blocks 35.

[0068] In this invention, the locking assembly 5 includes telescopic grooves 51 disposed at both ends of the spindle 1. Locking blocks 52 are installed within the telescopic grooves 51. Multiple locking springs 53 are installed between the bottom of the locking blocks 52 and the bottom of the telescopic grooves 51. The locking blocks 52 extend and retract along the telescopic grooves 51 under the elastic force of the locking springs 53. The locking blocks 52 are fitted into the locking grooves 22 of the winding disc body 2. A limiting frame 54 is provided at the opening of the telescopic groove 51, and a limiting plate 55 adapted to the limiting frame 54 is provided at the bottom edge of the locking blocks 52. Through the limiting cooperation between the limiting frame 54 and the limiting plate 55, the extension stroke of the locking blocks 52 is limited, preventing the locking blocks 52 from dislodging from the telescopic grooves 51.

[0069] Specifically, the mating surface of the locking block 52 is set as an inclined surface, and the back surface is set as a flat surface, and the overall size of the locking block 52 does not exceed the internal size of the locking groove 22. The outer walls at both ends of the spindle 1 are also provided with a plurality of evenly spaced positioning protrusions 12, which are adapted to the positioning grooves 23 inside the shaft hole 21 of the winding disc body 2, and the plurality of positioning protrusions 12 are staggered with the plurality of locking components 5.

[0070] A method for installing a winding reel includes:

[0071] S1. Multiple telescopic motors 41 are evenly installed in multiple transverse grooves 11 on the outer wall of the spindle 1, and telescopic rods 42 are connected to both ends of each telescopic motor 41. The telescopic rods 42 are provided with connecting shafts 421 at their ends. The rotating sleeve 431 at one end of the connecting rod 43 is sleeved on the connecting shaft 421 at the end of the telescopic rod 42. The rotating sleeve 431 at the other end of the connecting rod 43 is inserted into the fixed shaft 44. The fixed shaft 44 is placed in the mating ears 461 at both ends of the mounting frame 46 at the bottom of the expansion plate 45, thus completing the installation of the expansion plate assembly 4 on the outer wall of the spindle 1.

[0072] S2. Install locking blocks 52 in the telescopic grooves 51 at both ends of the spindle 1, install multiple locking springs 53 between the bottom of the locking blocks 52 and the bottom of the telescopic grooves 51, and install a limiting frame 54 at the opening of the telescopic grooves 51 so that the limiting plate 55 at the bottom edge of the locking blocks 52 is adapted to the limiting frame 54 for limiting.

[0073] S3. The two winding disc bodies 2 are respectively fitted onto the two ends of the mandrel 1 through the shaft hole 21, so that the multiple positioning protrusions 12 on the outer wall of the two ends of the mandrel 1 are aligned and engaged with the multiple positioning grooves 23 on the inner side of the shaft hole 21, so that the auxiliary moving components 47 at both ends of each expansion and contraction plate 45 are placed into the positioning guide grooves 24 on the inner side of the shaft hole 21, and the locking blocks 52 of each locking component 5 are adapted to lock into the multiple locking grooves 22 on the outer side of the shaft hole 21.

[0074] S4. Install the movable lead screw 32 inside the fixed frame 31, install the lead screw motor 33 connected to the movable lead screw 32 on the top of the fixed frame 31, install the fixed component 34 inside the expansion plate 37 on one side of the bottom of the fixed frame 31, install the two movable blocks 35 on the movable lead screw 32 through the screw holes 351 respectively, and install the guide roller 36 between the lower ends of the connecting plates 352 of the two movable blocks 35; set the assembled fixed frame 31 on the top of the mounting groove 23 on the top of the two winding disc bodies 2, so that the slot 311 at the bottom of the fixed frame 31 matches the mounting groove 23, and fix the fixed component 34 to the fixing hole 25 on one side of the top of the winding disc body 2.

[0075] During installation, the two ends of the mandrel 1 are inserted into the shaft holes 21 of the winding disc body 2 at both ends. The positioning protrusions 12 at both ends of the mandrel 1 are aligned and inserted into the positioning grooves 23 inside the shaft holes 21 to achieve circumferential positioning of the winding disc body 2 and the mandrel 1. During insertion, the mating surface of the locking block 52 abuts against the winding disc body 2. Under the action of the axial insertion force, the inclined surface generates a radial component force of the insertion force, pushing the locking block 52 to compress the locking spring 53 and retract into the telescopic groove 51. When the locking block 52 moves to the position aligned with the locking groove 22, the locking spring 53 resets, pushing the locking block 52 to extend and lock into the locking groove 22, thereby achieving axial locking between the winding disc body 2 and the mandrel 1. Then, the fixing bracket 31 of the winding limit assembly 3 is mounted on the mounting groove 23 on the top of the winding reel body 2 at both ends via the slot 311. Pull the handle 345 to retract the two sets of fixing heads 342 into the stretching groove 341. After the fixing heads 342 are aligned with the fixing holes 25, release the handle 345. The fixing spring 347 returns to its original position and pushes the fixing heads 342 into the fixing holes 25, thus completing the installation of the winding limit assembly 3.

[0076] During winding, the material is wound onto the arc-shaped surface of the outer wall of multiple expansion and contraction plates 45. The lead screw motor 33 is started, driving the moving lead screw 32 to rotate. The moving blocks 35 on both sides are threadedly engaged with the moving lead screw 32 via screw holes 351, moving axially along the moving lead screw 32. This drives the guide rollers 36 between the lower ends of the connecting plates 352 on both sides to move axially, providing axial limiting and guiding for the wound material, ensuring that the material is evenly distributed and neatly wound axially. When the winding diameter needs to be adjusted during winding, multiple telescopic motors 41 are started. The telescopic rods 42 at both ends of the telescopic motors 41 extend and retract synchronously. Through the linkage of the connecting rod 43 and the fixed shaft 44, the expansion and contraction plates 45 extend and retract radially, adjusting the winding diameter. During the extension and retraction of the expansion and contraction plates 45, the auxiliary moving component 47 moves along the positioning guide groove 24. The roller 474 rolls on the bottom of the positioning guide groove 24 and the bottom of the moving groove 242, causing the multiple expansion and contraction plates 45 to extend and retract radially synchronously and smoothly, maintaining a round winding surface.

[0077] When unwinding, the telescopic motor 41 can be started to make the expansion and contraction plate 45 contract synchronously, reducing the winding diameter and making it easier to unwind the wound material; pull the handle 345 to make the fixing head 342 exit the fixing hole 25 and remove the winding limit assembly 3 as a whole; pull the winding disc body 2 out of the mandrel 1 along the axial direction. During the extraction process, the locking block 52 compresses the locking spring 53 and retracts into the telescopic groove 51 and disengages from the locking groove 22, so that the winding disc body 2 can be removed from the mandrel 1.

[0078] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A winding reel, characterized in that: It includes a winding disc body (2) disposed at both ends of the mandrel (1), and a winding limit assembly (3) is installed between the tops of the winding discs (2) at both ends. The outer wall of the mandrel (1) is equipped with a plurality of evenly spaced expansion and contraction plate assemblies (4), which extend and retract on the outer wall of the mandrel (1). The mandrel (1) is also provided with locking components (5) that dock with the winding disc body (2) at both ends. The winding disc body (2) is provided with a shaft hole (21), and a plurality of evenly spaced locking grooves (22) are provided on the outside of the shaft hole (21). The plurality of locking grooves (22) are adapted to the locking component (5). A plurality of evenly spaced positioning grooves (26) are provided on the inside of the shaft hole (21). The top of the winding disc body (2) is also provided with an installation groove (23) for installing the winding limit component (3), and an inner positioning guide groove (24) for matching the expansion and contraction plate component (4). The winding limiting assembly (3) includes a fixing frame (31) mounted on the top of the winding disc body (2) at both ends. The fixing frame (31) is provided with a movable lead screw (32). The top of the fixing frame (31) is provided with a lead screw motor (33) connected to the movable lead screw (32). The bottom of the fixing frame (31) is mounted on the top of the mounting groove (23), and a fixing component (34) is provided on one side of it. The top side of the winding disc body (2) is also provided with a fixing hole (25) adapted to the fixing component (34). Movable blocks (35) are installed on both sides of the lead screw motor (33), and guide rollers (36) are installed between the bottoms of the two sides of the movable blocks (35). The outer wall of the spindle (1) is provided with a plurality of evenly spaced transverse grooves (11). The expansion and contraction plate assembly (4) includes a plurality of telescopic motors (41) disposed in the transverse grooves (11). Both ends of the plurality of telescopic motors (41) are connected to telescopic rods (42). Both ends of the telescopic rods (42) are provided with connecting rods (43). The ends of the connecting rods (43) are commonly inserted with a fixed shaft (44). The fixed shaft (44) is disposed in the mounting frame (46) at the bottom of the expansion and contraction plate (45). The bottom of the expansion and contraction plate (45) is provided with a plurality of mounting frames (46). Both ends of the expansion and contraction plate (45) are provided with auxiliary moving components (47) adapted to the positioning guide groove (24).

2. The winding reel according to claim 1, characterized in that: The locking assembly (5) includes telescopic grooves (51) disposed at both ends of the spindle (1), a locking block (52) is installed in the telescopic groove (51), a plurality of locking springs (53) are installed between the bottom of the locking block (52) and the bottom of the telescopic groove (51), the locking block (52) is adapted to lock into the locking groove (22), a limiting frame (54) is provided at the opening of the telescopic groove (51), and a limiting plate (55) adapted to the limiting frame (54) is provided at the bottom edge of the locking block (52).

3. A winding reel according to claim 1, characterized in that: The locking block (52) has a beveled surface on the mating surface and a flat surface on the back surface, and its overall size does not exceed the internal size of the locking groove (22).

4. A winding reel according to claim 1, characterized in that: The outer walls at both ends of the mandrel (1) are also provided with a plurality of evenly spaced positioning protrusions (12), which are adapted to the positioning groove (26) and are staggered with the locking components (5).

5. A winding reel according to claim 1, characterized in that: The positioning guide groove (24) has openings (241) on both sides of its bottom. The inner wall of the positioning guide groove (24) has moving grooves (242) on both sides. The auxiliary moving component (47) is placed in the positioning guide groove (24) and moves. The auxiliary moving component (47) includes an extension rod (471) provided at the end of the expansion and contraction plate (45). The extension rod (471) has positioning heads (472) on both sides of its end. The positioning heads (472) are adapted to the openings (241). The extension rod (471) and the positioning heads (472) are both provided with fixing rods (473). The fixing rods (473) are all equipped with rollers (474) on their outside. The outer wall of the rollers (474) contacts the bottom of the positioning guide groove (24) and the bottom of the moving groove (242).

6. A winding reel according to claim 1, characterized in that: The movable block (35) is provided with a screw hole (351) adapted to the movable lead screw (32). A connecting plate (352) extends downward from one end of the movable block (35). The guide roller (36) is installed between the lower ends of the connecting plates (352) on both sides. The fixing frame (31) is mounted on the top of the mounting groove (23). A matching slot (311) is provided at its bottom. An expansion plate (37) is provided on one side of the bottom of the fixing frame (31). The fixing component (34) is installed in the expansion plate (37). The fixing component (34) is adapted to the fixing hole (25).

7. A winding reel according to claim 6, characterized in that: The fixing component (34) includes two sets of stretching grooves (341) disposed in the expansion plate (37). Each set of stretching grooves (341) is equipped with a fixing head (342). Each set of fixing heads (342) is provided with a connecting rod (343) at its end. Each set of connecting rods (343) passes through the bottom through hole (344) of the stretching groove (341) to the outside. Both sets of connecting rods (343) are provided with a handle (345) at their ends. A baffle (346) is also provided outside the through hole (344) of the connecting rod (343). A fixing spring (347) is also provided between the end of the fixing head (342) and the bottom of the stretching groove (341). The fixing spring (347) is disposed outside the connecting rod (343). A matching limiting structure is provided at the opening of the stretching groove (341) and the edge of the end of the fixing head (342).

8. A winding reel according to claim 1, characterized in that: Multiple telescopic motors (41) are evenly spaced and installed in the crossbeam (11), and the telescopic rods (42) at both ends extend and retract synchronously. The ends of the rods are provided with connecting shafts (421). The connecting rods (43) are provided with rotating sleeves (431) that are adapted to the connecting shafts (421) and the fixed shafts (44) at both ends. The mounting frame (46) is provided with docking ears (461) at both ends. The fixed shafts (44) are placed in the docking ears (461), that is, the ends of the connecting rods (43) rotate in the same axial direction.

9. A winding reel according to claim 1, characterized in that: Multiple expansion and contraction plates (45) extend and contract synchronously, and the outer walls of the expansion and contraction plates (45) are all arc-shaped.

10. A method for installing a winding reel according to any one of claims 1-9, characterized in that, include: S1. Install multiple telescopic motors (41) evenly spaced in multiple transverse grooves (11) on the outer wall of the spindle (1), and connect telescopic rods (42) to both ends of each telescopic motor (41). The telescopic rods (42) are provided with connecting shafts (421) at their ends. Sleeve the rotating sleeve (431) at one end of the connecting rod (43) onto the connecting shaft (421) at the end of the telescopic rod (42). Insert the rotating sleeve (431) at the other end of the connecting rod (43) into the fixed shaft (44). Place the fixed shaft (44) into the docking ears (461) at both ends of the bottom mounting frame (46) of the expansion plate (45) to complete the installation of the expansion plate assembly (4) on the outer wall of the spindle (1). S2. Install locking blocks (52) in the telescopic grooves (51) at both ends of the spindle (1), install multiple locking springs (53) between the bottom of the locking blocks (52) and the bottom of the telescopic grooves (51), and install a limiting frame (54) at the opening of the telescopic grooves (51) so that the limiting plate (55) at the bottom edge of the locking blocks (52) is adapted to the limiting frame (54) for limiting. S3. The two winding disc bodies (2) are respectively fitted onto the two ends of the mandrel (1) through the shaft hole (21), so that the multiple positioning protrusions (12) on the outer wall of the two ends of the mandrel (1) are aligned and engaged with the multiple positioning grooves (23) on the inner side of the shaft hole (21), so that the auxiliary moving components (47) at both ends of each expansion and contraction plate (45) are placed into the positioning guide groove (24) on the inner side of the shaft hole (21), and the locking blocks (52) of each locking component (5) are adapted to lock into the multiple locking grooves (22) on the outer side of the shaft hole (21); S4. Install a movable lead screw (32) inside the fixed frame (31), install a lead screw motor (33) connected to the movable lead screw (32) on the top of the fixed frame (31), install the fixing component (34) inside the expansion plate (37) on one side of the bottom of the fixed frame (31), install the two movable blocks (35) on the movable lead screw (32) through screw holes (351) respectively, and install guide rollers (36) between the lower ends of the connecting plates (352) of the two movable blocks (35); set the assembled fixed frame (31) on the top of the mounting groove (23) on the top of the two winding disc bodies (2), so that the slot (311) at the bottom of the fixed frame (31) matches the mounting groove (23), and fix the fixing component (34) to the fixing hole (25) on one side of the top of the winding disc body (2).

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