Stranding machine with self-positioning lifting device

Abstract

The utility model relates to wire and cable manufacturing technical field, concretely relates to a kind of lifting device with self-positioning for stranding machine;The design is to realize lifting function and need to be high and widen box body to lift and let place, increase floor space and make structure complex, the problem of inconvenient maintenance in later period, the device is through the innovative lifting screw rod assembly design, without additional high and wide processing to box body, simplify equipment structure and facilitate later maintenance;Stable connection of support plate component is passed through rotating shaft and support plate body, cooperate wire reel baffle, wire reel guide block and so on design, ensure the stability in the process of loading and unloading, improve production efficiency;Lifting screw rod assembly is through the cooperation design of first screw rod nut, second screw rod nut and adjusting screw, realizes the adjustable of lifting clearance, reduces screw rod wear and tear and jamming phenomenon, prolongs equipment service life and reduces raw material and labor cost.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable manufacturing technology, and in particular to a lifting device with self-positioning for a stranding machine. Background Technology

[0002] In the wire and cable manufacturing process, the stranding machine is one of the key pieces of equipment, and the lifting device, as an important auxiliary component of the stranding machine, plays a crucial role in loading and unloading the wire reels. Currently, there are various types of lifting devices on the market, such as bottom hydraulic lifting devices, rear screw lifting devices, and side-fixed screw lifting devices. These existing technologies, to a certain extent, meet the basic needs of wire reel loading and unloading and improve production efficiency. For example, the bottom hydraulic lifting device achieves smooth lifting and lowering of the wire reel through a hydraulic system and can withstand a large weight; the rear screw lifting device moves the wire reel up and down by rotating the screw, and its structure is relatively simple and easy to operate; the side-fixed screw lifting device can also play a good role in certain specific scenarios.

[0003] However, for devices with bottom hydraulic lifting or rear screw lifting, the housing needs to be heightened and widened to allow for lifting, which not only increases the equipment's footprint but also complicates the overall structure and makes maintenance extremely inconvenient. Secondly, for side-fixed lifting devices, the lifting tray swings back and forth when loading and unloading reels, making loading and unloading difficult and severely impacting production efficiency. Furthermore, adjusting the clearance between the lifting screw and nut can easily cause screw wear and jamming, which not only shortens the equipment's lifespan but also increases raw material and labor costs. Utility Model Content

[0004] The purpose of this invention is to provide a self-positioning lifting device for a stranding machine, aiming to solve the problems of existing devices with bottom hydraulic lifting or rear screw lifting, which require increasing the height and width of the housing to make room for lifting. This not only increases the footprint of the equipment but also makes the overall structure more complex and difficult to maintain. Secondly, with side-fixed lifting devices, the lifting plate swings back and forth when loading and unloading the coils, making loading and unloading difficult and seriously affecting production efficiency. In addition, the adjustment of the gap between the lifting screw and the nut can easily cause problems such as screw wear and jamming, which not only shortens the service life of the equipment but also increases the cost of raw materials and labor.

[0005] To achieve the above objectives, this utility model employs a self-positioning lifting device for a stranding machine, comprising a lifting screw assembly, a support plate assembly, a first limiting assembly, a second limiting assembly, and a housing. The lifting screw assembly includes a lifting guide column fixing seat, a first screw nut, a second screw nut, an adjusting screw, and a lifting column. A lifting motor body is mounted on the lifting column via a lifting motor fixing seat. A reduction gearbox body is mounted on the output end of the lifting motor body via a reduction gearbox connecting seat. The lifting screw is mounted on the output end of the reduction gearbox body via a spacer, a bearing, and a fixing sleeve. Both the first lead screw nut and the second lead screw nut are threaded onto the lifting lead screw, and are connected by an adjusting screw. The lifting column is provided with a rotating body, a baffle, and a copper sleeve. A guide plate is provided on the lifting column via a driven cam bearing. A lifting guide column fixing seat is provided on the lifting column and on the housing. The pallet assembly and the first limiting assembly are both provided on the first lead screw nut and the second lead screw nut, and the second limiting assembly is provided on the housing.

[0006] The pallet assembly includes a rotating shaft and a pallet body. Two pressure caps are provided at one end of the pallet body. The rotating shaft is located at one end of the pallet body via two bearings and is also located between the two pressure caps. The rotating shaft is also located on the first lead screw nut and the second lead screw nut.

[0007] The pallet body is provided with a wire reel baffle, a wire reel guide block, a pull rod, and a limiting block.

[0008] The first limiting component includes a first cylinder and a first limiting seat. The first limiting seat is provided with a buffer fixing seat, a first fixing block, a first guide post, a first locking tongue, a first compression spring, and a first positioning ring. The buffer fixing seat is provided with a first buffer pad. The first limiting seat is also provided with a limit switch seat. The cylinder is located on the first limiting seat. The first limiting seat is located on the first lead screw nut and the second lead screw nut, and is also located on one side of the rotating shaft.

[0009] The second limiting component includes a second cylinder and a second limiting seat. The second limiting seat is provided with a second guide post, a second locking tongue, a second compression spring, a second positioning ring, and a second buffer pad. The second cylinder is disposed on the second limiting seat, and the second limiting seat is disposed on the housing.

[0010] This utility model discloses a self-positioning lifting device for a stranding machine. For devices with bottom hydraulic lifting or rear-mounted screw lifting, increasing the height and width of the housing to accommodate the lifting function increases floor space, complicates the structure, and hinders maintenance. This device, through an innovative lifting screw assembly design, eliminates the need for additional height and width increases to the housing, simplifying the equipment structure and facilitating maintenance. Addressing the issue of side-fixed lifting devices where the lifting tray swings back and forth during loading and unloading of coils, causing difficulties and impacting production efficiency, the tray assembly, through a stable connection between the rotating shaft and the tray body, along with the design of the coil baffle and guide block, ensures stability during loading and unloading, improving production efficiency. Regarding the issue of screw wear and jamming caused by adjusting the clearance between the lifting screw and nut, the lifting screw assembly, through the coordinated design of the first screw nut, second screw nut, and adjusting screw, allows for adjustable lifting clearance, reducing screw wear and jamming, extending equipment lifespan, and lowering raw material and labor costs. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a structural schematic diagram of the self-positioning lifting device for the stranding machine of this utility model.

[0013] Figure 2 This is a front view of the self-positioning lifting device for the stranding machine of this utility model.

[0014] Figure 3 This is a schematic diagram of the lifting screw assembly in the self-positioning lifting device for the stranding machine of this utility model.

[0015] Figure 4 This is a schematic diagram of the pallet assembly in the self-positioning lifting device for a stranding machine according to this utility model.

[0016] Figure 5 This is a side view of the pallet assembly in the self-positioning lifting device for the stranding machine of this utility model.

[0017] Figure 6 This is a schematic diagram of the first limiting component in the self-positioning lifting device for a stranding machine according to this utility model.

[0018] Figure 7This is a side view of the first limiting component in the self-positioning lifting device for the stranding machine of this utility model.

[0019] Figure 8 This is a schematic diagram of the structure of the second limiting component in the self-positioning lifting device for the stranding machine of this utility model.

[0020] Figure 9 This is a side view of the second limiting component in the self-positioning lifting device for the stranding machine of this utility model.

[0021] 1-Lifting screw assembly, 2-Pattern assembly, 3-First limit assembly, 4-Second limit assembly, 5-Box body, 6-Lifting guide column fixing seat, 7-First screw nut, 8-Second screw nut, 9-Adjusting screw, 10-Lifting column, 11-Lifting motor fixing seat, 12-Lifting motor body, 13-Reduction gearbox connecting seat, 14-Reduction gearbox body, 15-Spacer, 16-Fixing sleeve, 17-Lifting screw, 18-Rotating body, 19-Baffle, 20-Copper sleeve, 21-Driven cam bearing, 22-Guide plate, 23-Rotating shaft, 24 - Tray body, 25- Pressure cover, 26- Wire reel baffle, 27- Wire reel guide block, 28- Pull rod, 29- Limit block, 30- First cylinder, 31- First limit seat, 32- Buffer fixing seat, 33- First fixing block, 34- First guide post, 35- First locking tongue, 36- First compression spring, 37- First positioning ring, 38- First buffer pad, 39- Limit switch seat, 40- Second cylinder, 41- Second limit seat, 42- Second guide post, 43- Second locking tongue, 44- Second compression spring, 45- Second positioning ring, 46- Second buffer pad. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0023] Please see Figures 1 to 9This utility model provides a self-positioning lifting device for a stranding machine, including a lifting screw assembly 1, a support plate assembly 2, a first limiting assembly 3, a second limiting assembly 4, and a housing 5. The lifting screw assembly 1 includes a lifting guide column fixing seat 6, a first screw nut 7, a second screw nut 8, an adjusting screw 9, and a lifting column 10. A lifting motor body 12 is mounted on the lifting column 10 via a lifting motor fixing seat 11. A reduction gearbox body 14 is mounted on the output end of the lifting motor body 12 via a reduction gearbox connecting seat 13. A lifting screw 17 is mounted on the output end of the reduction gearbox body 14 via a spacer 15, a bearing, and a fixing sleeve 16. Both the first lead screw nut 7 and the second lead screw nut 8 are threaded onto the lifting lead screw 17, and the first lead screw nut 7 and the second lead screw nut 8 are connected by an adjusting screw 9. The lifting column 10 is provided with a rotating body 18, a baffle 19 and a copper sleeve 20. The lifting column 10 is provided with a guide plate 22 through a driven cam bearing 21. The lifting guide column fixing seat 6 is provided on the lifting column 10 and the housing 5. The pallet assembly 2 and the first limiting assembly 3 are both provided on the first lead screw nut 7 and the second lead screw nut 8, and the second limiting assembly 4 is provided on the housing 5.

[0024] In this embodiment, the integrated design of the lifting screw assembly 1 solves the problem that traditional bottom hydraulic or rear screw lifting requires increasing the height and width of the housing 5, reducing the equipment's footprint and simplifying the overall structure. At the same time, the first screw nut 7 and the second screw nut 8, through the cooperation of the adjusting screw 9, realize the dynamic adjustment of the lifting gap, effectively reducing the wear and jamming risk between the screw and the nut, extending the service life of the equipment, and significantly saving raw material and labor costs.

[0025] Furthermore, the pallet assembly 2 includes a rotating shaft 23 and a pallet body 24. Two pressure caps 25 are provided at one end of the pallet body 24. The rotating shaft 23 is disposed at one end of the pallet body 24 via two bearings and is also located between the two pressure caps 25. The rotating shaft 23 is disposed on the first lead screw nut 7 and the second lead screw nut 8.

[0026] In this embodiment, the stable connection structure between the rotating shaft 23 and the pallet body 24, combined with the limiting design of the pressure cap 25 and the bearing, completely eliminates the problem of pallet swaying in traditional side-fixed lifting devices, ensuring the stability of the wire reel loading and unloading process. In addition, the synergistic effect of the wire reel baffle 26, wire reel guide block 27, pull rod 28 and limiting block 29 further improves loading and unloading efficiency, avoids operation delays caused by pallet shaking, and significantly improves production efficiency.

[0027] Furthermore, the pallet body 24 is provided with a wire reel baffle 26, a wire reel guide block 27, a pull rod 28, and a limiting block 29.

[0028] In this embodiment, the combination design of the reel baffle 26 and the reel guide block 27 provides precise positioning and guiding functions for the reel, preventing the reel from shifting or slipping during loading and unloading. At the same time, the cooperation of the pull rod 28 and the limiting block 29 achieves a rigid restriction on the axial displacement of the reel, ensuring the safety and reliability of loading and unloading operations and reducing equipment failures and production interruptions caused by reel displacement.

[0029] Furthermore, the first limiting component 3 includes a first cylinder 30 and a first limiting seat 31. The first limiting seat 31 is provided with a buffer fixing seat 32, a first fixing block 33, a first guide post 34, a first locking tongue 35, a first compression spring 36, and a first positioning ring 37. The buffer fixing seat 32 is provided with a first buffer pad 38. The first limiting seat 31 is also provided with a limit switch seat 39. The cylinder is provided on the first limiting seat 31. The first limiting seat 31 is provided on the first lead screw nut 7 and the second lead screw nut 8, and is also located on one side of the rotating shaft 23.

[0030] In this embodiment, the first limiting component 3 achieves precise locking of the pallet's lifting position through the linkage mechanism of the first cylinder 30 and the first locking tongue 35. When loading and unloading the reel, the elastic buffer design of the first compression spring 36 and the positioning ring effectively absorbs the impact force when the pallet descends, avoiding damage to the equipment from rigid collisions. At the same time, the integration of the limit switch seat 39 provides overload protection for the equipment, further improving the system's safety.

[0031] Furthermore, the second limiting component 4 includes a second cylinder 40 and a second limiting seat 41. The second limiting seat 41 is provided with a second guide post 42, a second locking tongue 43, a second compression spring 44, a second positioning ring 45, and a second buffer pad 46. The second cylinder 40 is disposed on the second limiting seat 41, and the second limiting seat 41 is disposed on the housing 5.

[0032] In this embodiment, the second limiting component 4, through the coordinated operation of the second cylinder 40 and the second locking tongue 43, constitutes a double insurance mechanism for the lifting and lowering of the pallet; when the first limiting component 3 fails, the second limiting component 4 can independently undertake the task of locking the pallet, ensuring the continuity of equipment operation; in addition, the design of the second buffer pad 46 further optimizes the dynamic performance of the pallet when it descends, reduces vibration and noise, and improves the comfort of the operating environment.

[0033] In this utility model, when using the self-positioning lifting device for the stranding machine, firstly ensure that the housing 5 is securely installed in the designated position of the stranding machine; then, by operating the lifting motor body 12, the lifting screw 17 is driven to rotate after being reduced in speed by the reduction gearbox body 14, thereby driving the first screw nut 7 and the second screw nut 8 (the gap between the two is adjusted by the adjusting screw 9) to move smoothly up and down along the lifting column 10; at this time, the tray assembly 2 (including the rotating shaft 23, tray body 24, and wire reel stop, etc.) fixed on the screw nut rises and falls accordingly, realizing the precise loading and unloading of the wire reel; during the lifting process, the first limiting assembly 3 and the second limiting assembly 4 (both including cylinders, locking tongues, and compression springs, etc.) drive the locking tongue to extend or retract through air pressure, precisely controlling the limit position of the tray lifting and preventing overtravel; at the same time, the guide plate 22 and the driven cam bearing 21 ensure the stability of the lifting screw 17 operation. The entire device achieves efficient, stable, and safe loading and unloading of the wire reel through the coordinated work of various components.

[0034] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A lifting device with self-positioning for a stranding machine, characterized in that, The device includes a lifting screw assembly, a support plate assembly, a first limiting assembly, a second limiting assembly, and a housing. The lifting screw assembly includes a lifting guide column fixing seat, a first screw nut, a second screw nut, an adjusting screw, and a lifting column. A lifting motor body is mounted on the lifting column via a lifting motor fixing seat. A reduction gearbox body is mounted on the output end of the lifting motor body via a reduction gearbox connecting seat. A lifting screw is mounted on the output end of the reduction gearbox body via a spacer, a bearing, and a fixing sleeve. Both the first screw nut and the second screw nut are threaded onto the lifting screw and connected to each other via an adjusting screw. A rotating body, a baffle, and a copper sleeve are mounted on the lifting column. A guide plate is mounted on the lifting column via a driven cam bearing. The lifting guide column fixing seat is mounted on the lifting column and the housing. The support plate assembly and the first limiting assembly are both mounted on the first screw nut and the second screw nut, respectively. The second limiting assembly is mounted on the housing.

2. The self-positioning lifting device for a stranding machine as described in claim 1, characterized in that, The pallet assembly includes a rotating shaft and a pallet body. Two pressure caps are provided at one end of the pallet body. The rotating shaft is located at one end of the pallet body via two bearings and is also located between the two pressure caps. The rotating shaft is also provided on the first lead screw nut and the second lead screw nut.

3. The self-positioning lifting device for a stranding machine as described in claim 2, characterized in that, The pallet body is equipped with a wire reel baffle, a wire reel guide block, a pull rod, and a limit block.

4. The self-positioning lifting device for a stranding machine as described in claim 3, characterized in that, The first limiting component includes a first cylinder and a first limiting seat. The first limiting seat is provided with a buffer fixing seat, a first fixing block, a first guide post, a first locking tongue, a first compression spring, and a first positioning ring. The buffer fixing seat is provided with a first buffer pad. The first limiting seat is also provided with a limit switch seat. The cylinder is disposed on the first limiting seat. The first limiting seat is disposed on the first lead screw nut and the second lead screw nut, and is also located on one side of the rotating shaft.

5. The self-positioning lifting device for a stranding machine as described in claim 4, characterized in that, The second limiting component includes a second cylinder and a second limiting seat. The second limiting seat is provided with a second guide post, a second locking tongue, a second compression spring, a second positioning ring, and a second buffer pad. The second cylinder is disposed on the second limiting seat, and the second limiting seat is disposed on the housing.

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