Disk loading and unloading device for winding machine
By combining fasteners, flanges, and limit rings, the problem of high labor intensity and safety hazards in loading and unloading trays on winding machines is solved, realizing time-saving and labor-saving loading and unloading of trays, and improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-03-17
AI Technical Summary
The existing winding machine loading and unloading operation is labor-intensive, inefficient and poses safety hazards, especially when operating in deep pit environments.
The system employs a combination structure of fasteners, flanges, and retaining rings. Through the design of bolt heads and screws, and by utilizing the clearance fit between the retaining rings and the flanges, it achieves labor-saving loading and unloading of the disc, reduces the rotation of the disc, and improves loading and unloading efficiency.
It reduced the workload of operators, improved the efficiency of loading and unloading pallets, reduced operational hazards, and enhanced production safety.
Smart Images

Figure CN223998976U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe manufacturing and processing technology, and in particular to a loading and unloading device for a winding machine. Background Technology
[0002] Wrapping machines used in reinforced thermoplastic pipe (RTP) production lines typically use reels mounted on an unwinding shaft to unwind materials such as steel cord, fiberglass tape, and steel strip. Because these are consumables, reels need frequent replacement. Current methods involve securing the reel to the unwinding shaft with ordinary bolts. Due to the small clearance between the reel and the unwinding shaft, coupled with the reel's considerable weight, significant force is required to pull it off the unwinding machine shaft, resulting in high labor intensity for operators and low efficiency in reel replacement. Furthermore, since wrapping machines are generally installed in deep pits, the cumbersome and forceful reel removal operation increases the operational risks for workers. Utility Model Content
[0003] The purpose of this invention is to provide a loading and unloading device for a winding machine, which can solve one or more of the problems of the prior art mentioned above.
[0004] According to one aspect of the present invention, a loading and unloading device for a winding machine is provided, comprising a fastener, a flange, and a retaining ring. The fastener includes a bolt head and a threaded rod connected to the bolt head. The outer wall of the end of the threaded rod away from the bolt head is provided with threads. A receiving groove is provided in the area of the threaded rod where no threads are provided. The receiving groove is circumferentially arranged around the outer wall of the threaded rod. The receiving groove is not adjacent to the threads. The flange is sleeved on the threaded rod of the fastener. The retaining ring is disposed on the side of the flange away from the bolt head. The retaining ring is disposed in the receiving groove. The radial thickness of the retaining ring is greater than the depth of the receiving groove. The distance between the side of the retaining ring near the flange and the bolt head is greater than the axial thickness of the flange.
[0005] In some implementations, the length of the thread is equal to half the total length of the screw.
[0006] In some embodiments, the limiting ring includes a first limiting ring and a second limiting ring, both of which are semi-circular, and the first limiting ring and the second limiting ring can be assembled into a complete ring.
[0007] In some embodiments, the distance between the receiving groove and the threaded thread on the side closest to the threaded thread is 1 / 6 to 1 / 8 of the total length of the screw.
[0008] In some embodiments, the distance between the side of the receiving groove near the flange and the bolt head is 1.1 to 1.5 times the axial thickness of the flange.
[0009] In some implementations, the flange is used to connect to the shaft with the disc.
[0010] This utility model provides a reel loading and unloading device for a winding machine, which connects a flange and a reel shaft together. When loading the reel, it is fitted inside the tapered shaft of the unwinding machine. Because there are gaps between the flange, the retaining ring, and the fasteners, the reel will not rotate when the fasteners are tightened. As the fasteners tighten, when the retaining ring presses against the end face of the tapered shaft of the unwinding machine, the fasteners provide an inward axial force to the reel, pushing it inward to install it in place. When unloading the reel, the fasteners are loosened. At this time, the retaining ring contacts the flange and provides an outward axial force, pushing the reel outward to complete the unloading. Therefore, loading and unloading the reel is more time-saving and labor-saving, reduces the workload of operators, improves the efficiency of loading and unloading, reduces operational hazards, and improves production safety.
[0011] In addition, unless otherwise specified, all aspects of this utility model technical solution can be implemented by conventional means in the field. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 An exploded view of a loading and unloading device for a winding machine according to an embodiment of the present invention.
[0014] Figure 2 This is a front view of a fastener in a loading and unloading device for a winding machine, provided according to an embodiment of the present invention.
[0015] Figure 3 This is a schematic diagram of the fasteners and limiting rings in a loading and unloading device for a winding machine, provided as an embodiment of the present invention.
[0016] Figure 4 An exploded view of a loading and unloading tray device for a winding machine provided in an embodiment of the present invention during use. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0018] Example:
[0019] In this embodiment, please refer to the appendix to the specification. Figure 1-3 It provides a loading and unloading device for a winding machine, including fastener 1, flange 2 and retaining ring 3.
[0020] The fastener 1 includes a bolt head 11 and a screw 12 connected to the bolt head 11. The outer wall of the end of the screw 12 away from the bolt head 11 is provided with threads 13. The area of the screw 12 without threads 13 is provided with a receiving groove 14. The receiving groove 14 is circumferentially arranged around the outer wall of the screw 12. The receiving groove 14 is not adjacent to the threads 13. The flange 2 is sleeved on the screw 12 of the fastener 1. The limiting ring 3 is provided on the side of the flange 2 away from the bolt head 11. The limiting ring 3 is located in the receiving groove 14. The radial thickness of the limiting ring 3 is greater than the depth of the receiving groove 14. The distance between the side of the limiting ring 3 near the flange 2 and the bolt head 11 is greater than the axial thickness of the flange 2.
[0021] In an optional embodiment, the fastener 1 may be a half-thread external hex bolt, wherein the length of the thread 13 is equal to half the total length of the screw 12.
[0022] In an optional embodiment, the limiting ring 3 includes a first limiting ring 31 and a second limiting ring 32. Both the first limiting ring 31 and the second limiting ring 32 are semi-circular, and can be assembled into a complete ring. Specifically, each end of the first limiting ring 31 and the second limiting ring 32 is provided with a screw hole, and the first limiting ring 31 and the second limiting ring 32 can be connected by bolts to form a complete ring. This facilitates the installation and disassembly of the limiting ring 3, and the inner circumference of the limiting ring 3 can be adjusted by adjusting the tightness of the connection between the first limiting ring 31 and the second limiting ring 32 to adapt to the circumferential length of the bottom of the receiving groove 14.
[0023] In an optional embodiment, the distance between the side of the receiving groove 14 near the thread 13 and the thread 13 can be 1 / 6 to 1 / 8 of the total length of the screw 12. Thus, the receiving groove 14 is not adjacent to the thread 13, preventing the retaining ring 3 from moving out of the receiving groove 14 during the loading and unloading of the reel, which would affect the loading and unloading effect.
[0024] In an optional embodiment, the distance between the side of the receiving groove 14 near the flange 2 and the bolt head 11 can be 1.1 to 1.5 times the axial thickness of the flange 2. Thus, the retaining ring 3 in the receiving groove 14 can confine the flange 2 between the retaining ring 3 and the bolt head 11. Simultaneously, since the distance between the retaining ring 3 and the bolt head 11 is slightly greater than the axial thickness of the flange 2, when the flange 2 is connected to the disc shaft 4, the flange 2 and the disc shaft 4 are relatively fixed, and the fastener 1 can move slightly along the axial direction of the flange 2, providing the two opposite forces required during disc loading and unloading.
[0025] Reference manual attached Figure 4 The diagram shows an exploded view of the loading and unloading device for a winding machine in use, including the reel shaft 4 and the tapered shaft 5 of the unwinder. The reel shaft 4 has several threaded holes at its end away from the unwinder, and corresponding threaded holes are also provided on the flange 2. Therefore, the flange 2 can be bolted to the reel shaft 4. At this time, the flange 2 is located between the bolt head 11 and the retaining ring 3, and is connected to the reel shaft 4.
[0026] When installing the reel onto the unwinding machine, the operator places the reel, equipped with fastener 1, flange 2, and retaining ring 3, inside the tapered shaft 5 of the unwinding machine. Because there is a gap between flange 2, retaining ring 3, and fastener 1, the reel will not rotate when the fastener is tightened. As the fastener is tightened, the retaining ring 3 protrudes beyond the outer wall of the screw 12 because its radial thickness is greater than the depth of the receiving groove 14. When the retaining ring 3 presses against the end face of the tapered shaft 5, the fastener 1 provides an inward axial force to the reel, i.e., an axial force towards the tapered shaft 5, pushing the reel inward to install it in place. When removing the reel, the fastener 1 is loosened, and the retaining ring 3 contacts flange 2, providing an outward axial force, pushing the reel outward to complete the removal. This makes loading and unloading with trays more time-saving and labor-saving, reduces the workload of operators, improves the efficiency of loading and unloading trays, reduces operational risks, and improves production safety.
[0027] The above description is only an optional embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A loading and unloading disc device for a winding machine, characterized in that, The fastener (1), the flange plate (2) and the limiting check ring (3) are provided, The fastener (1) comprises a bolt head (11) and a screw rod (12) connected with the bolt head (11), an external wall of an end of the screw rod (12) away from the bolt head (11) is provided with a screw thread (13), an area of the screw rod (12) not provided with the screw thread (13) is provided with a containing groove (14), the containing groove (14) is circumferentially arranged on the external wall of the screw rod (12), and the containing groove (14) is not adjacent to the screw thread (13), The flange plate (2) is sleeved on the screw rod (12) of the fastener (1), the limiting check ring (3) is arranged on a side of the flange plate (2) away from the bolt head (11), the limiting check ring (3) is arranged in the containing groove (14), a radial thickness of the limiting check ring (3) is greater than a depth of the containing groove (14), and a distance between a side of the limiting check ring (3) close to the flange plate (2) and the bolt head (11) is greater than an axial thickness of the flange plate (2).
2. The loading and unloading station for a winding machine according to claim 1, characterized in that, The length of the screw thread (13) is equal to half of the total length of the screw rod (12).
3. The loading and unloading station for a winding machine according to claim 1, characterized in that, The limiting check ring (3) comprises a first limiting ring (31) and a second limiting ring (32), the first limiting ring (31) and the second limiting ring (32) are both semi-annular, and the first limiting ring (31) and the second limiting ring (32) can be spliced into a complete annular.
4. The loading and unloading station for a winding machine according to claim 1, characterized in that, The distance between a side of the containing groove (14) close to the screw thread (13) and the screw thread (13) is 1 / 6-1 / 8 of the total length of the screw rod (12).
5. The loading and unloading station for a winding machine according to claim 1, characterized in that, The distance between a side of the containing groove (14) close to the flange plate (2) and the bolt head (11) is 1.1-1.5 times of the axial thickness of the flange plate (2).
6. The loading and unloading station for a winding machine according to claim 1, characterized in that, The flange plate (2) is used for being connected with a disc shaft (4).