A device for preventing the car from sliding during the transfer of polyester low-elasticity yarn production materials
By adopting an eccentric self-locking wheel design in the production of polyester low-elasticity yarn, the problem of traditional universal wheel trolleys easily slipping in oily or sloping environments has been solved, thus improving the stability and safety of material transfer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING SHAW CLOTHING CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-05
AI Technical Summary
In the production process of polyester low-elasticity yarn, traditional caster handcarts are prone to slippage due to airflow disturbances and equipment vibrations in oily or sloping environments, which can cause yarn cakes to fall and yarn to break.
Design a transfer device to prevent trolley slippage. It adopts a self-locking wheel with an eccentric structure. The central shaft is offset from the center of the inner wheel body when unloaded under the action of the elastic element, which restricts the trolley from sliding. The self-locking wheel design prevents trolley slippage and reduces safety hazards.
It effectively prevents runaway accidents, improves the stability and safety of material transfer, and reduces the risk of equipment collisions and personnel injuries.
Smart Images

Figure CN224324000U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of fabric transportation devices, and in particular relates to an anti-slippage transfer device for polyester low-elasticity yarn production materials. Background Technology
[0002] In the production process of polyester low-elasticity yarn (DTY), the stability and safety of material handling directly affect production efficiency and product quality. The production of polyester low-elasticity yarn involves multiple processes, including unwinding POY raw yarn, texturing, and winding, requiring frequent handling of small materials such as yarn bobbins, DTY finished yarn cakes, and quality inspection rolls. Currently, polyester filament manufacturers generally use traditional caster trolleys for short-distance transport. However, this equipment has significant drawbacks in the following scenarios: the floor of polyester filament production workshops often forms an oily layer due to equipment lubricant leaks or spinning oil splashes, and some areas have 3°-5° process ramps (such as the connection between the winding machine and the quality inspection station). When unloaded, traditional trolleys have a low center of gravity, making them prone to unexpected displacement due to airflow disturbances or equipment vibrations in oily or sloping environments. This can lead to trolley slippage, collisions with equipment or personnel, and quality accidents such as yarn cake falls or yarn breakage. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art, this utility model provides an anti-slippage transfer device for polyester low-elasticity yarn production materials, which reduces the occurrence of slippage and collision accidents and reduces safety hazards.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: a transfer device for preventing slippage of polyester low-elasticity yarn production materials, comprising a frame and a push rod. A wheel frame is fixed to the bottom of the frame on the side away from the push rod, and a self-locking wheel is installed on the wheel frame. A central shaft is provided on the wheel frame, and the central shaft passes through the self-locking wheel. The self-locking wheel includes an inner wheel body and an outer tire disposed on the inner wheel body. An axle hole is opened on the inner wheel body. The axle hole is a strip-shaped hole opened radially from the center of the inner wheel body to one side edge of the inner wheel body, and a bearing is provided inside it. The bearing is fitted onto the central shaft. An elastic element is provided on the inner wheel body, and the elastic element can resist the movement of the central shaft. The center axis coincides with the center of the inner wheel body; when the frame is unloaded, the center axis is located away from the center of the inner wheel body under the action of the elastic element; a universal wheel is rotatably installed on the bottom side of the frame near the push rod. When the frame is unloaded, the center axis is located away from the center of the inner wheel body under the action of the elastic element; when the frame is loaded with materials, the center axis is located at the center of the inner wheel body, and the plane on which the frame carries the materials is horizontal; through the design of the eccentric structure, when the fabric transport trolley is unloaded, the frame is not compressed, and the center of the central axis and the center of the inner wheel body do not coincide, which can limit the trolley from sliding and slipping, thereby reducing the occurrence of slipping and collision accidents and reducing safety hazards.
[0005] Preferably, the bearing is mounted on the inner wheel body via a movable frame, the movable frame being slidably connected to the inner wheel body, and the sliding direction of the movable frame being consistent with the length direction of the shaft hole.
[0006] Preferably, sliding grooves are provided on both sides of the inner wheel body. The sliding grooves are strip-shaped grooves that are aligned with the length direction of the shaft hole. Moving parts are fixedly connected to both ends of the movable frame, and the moving parts slide in contact with the sliding grooves.
[0007] Preferably, the sliding groove is provided with the elastic element, one end of which is connected to the moving part and the other end is connected to one side wall of the sliding groove.
[0008] Preferably, the elastic element is a spring.
[0009] Preferably, the moving part is provided with a first limiting groove, the sliding groove is provided with a second limiting groove, and the two ends of the elastic member are respectively fixedly inserted into the first limiting groove and the second limiting groove.
[0010] Preferably, the inner wheel body is covered with baffles on both sides, and the baffles are at least partially in contact with the movable frame.
[0011] Preferably, the inner wheel body is provided with a counterweight, which is located on the side of the shaft hole away from the central shaft.
[0012] Preferably, the self-locking wheel is provided with an indicator block.
[0013] Preferably, the central shafts of all self-locking wheels are arranged to rotate synchronously.
[0014] The technical effect of this utility model is as follows: through the design of the eccentric structure, when the fabric transport trolley is unloaded, the frame is not compressed, and the center of the central shaft and the center of the inner wheel do not coincide, which can limit the trolley from sliding and slipping, thereby reducing the occurrence of slipping collision accidents and reducing safety hazards. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a bottom view of the present invention.
[0017] Figure 3 This is the front view of the self-locking wheel.
[0018] Figure 4 for Figure 3 Schematic diagram of cross-section at point AA.
[0019] Figure 5This is a side view of the self-locking wheel.
[0020] Figure 6 for Figure 5 Schematic diagram of cross-section at point BB.
[0021] The main technical features in the figure are labeled as follows: 1. Frame; 2. Push rod; 3. Caster wheel; 4. Self-locking wheel; 41. Inner wheel body; 42. Outer tire; 5. Wheel frame; 51. Central shaft; 52. Axle hole; 6. Moving frame; 61. Bearing; 62. Moving half frame; 63. Mounting platform; 64. Mounting groove; 65. Moving part; 66. Sliding groove; 67. Spring; 68. First limiting groove; 69. Second limiting groove; 7. Baffle; 71. Indicator block; 72. Counterweight block. Detailed Implementation
[0022] The present invention will be further described below with reference to specific embodiments and accompanying drawings.
[0023] like Figures 1-6 As shown, an anti-slip transfer device for polyester low-elasticity yarn production materials includes a frame 1 and a push rod 2. Both the frame 1 and the push rod 2 are existing technologies. Two sets of rollers are installed at the bottom of the frame 1. The set of rollers closer to the push rod 2 are rear wheels, which are caster wheels 3 mounted on the frame 1. The caster wheels 3 are existing technologies. The set of rollers farther away from the push rod 2 are self-locking wheels 4.
[0024] Specifically, two wheel frames 5 are fixedly installed at the bottom of the frame 1. A central shaft 51 is fixedly installed on the wheel frame 5. The self-locking wheel 4 is installed on the central shaft 51. The central shafts 51 on the two wheel frames 5 are coaxial or synchronously connected through a coupling. The two self-locking wheels 4 are always symmetrically arranged and rotate synchronously.
[0025] Specifically, the self-locking wheel 4 includes an inner wheel body 41 and an outer tire 42. The outer tire 42 covers the inner wheel body 41 and is made of existing rubber material. The inner wheel body 41 has an axle hole 52, which is a through hole. Its length extends from the center of the inner wheel body 41 toward the frame 1. A bearing 61 is installed in the axle hole 52 through a movable frame 6. The bearing 61 is fitted onto the central shaft 51.
[0026] Furthermore, the movable frame 6 consists of two symmetrically arranged movable half-frames 62. One end of each movable half-frame 62 is provided on a mounting platform 63, which is inserted into the shaft hole 52 and slidably engaged with it. The end of the mounting platform 63 is provided with a mounting groove 64, and both ends of the bearing 61 are respectively engaged into the mounting grooves 64 of the two movable half-frames 62. The other end of the movable half-frame 62 is a block-shaped movable part 65. The inner wheel body 41 is provided with sliding grooves 66 on both sides, and the movable part 65 is slidably engaged in the sliding grooves 66. The opening direction of the sliding grooves 66 is consistent with the length direction of the shaft hole 52. The central shaft 51 passes through the movable frame 6 and engages with the bearing 61.
[0027] Furthermore, the sliding groove 66 is provided with an elastic element, which is a spring 67. The moving part 65 is provided with two first limiting grooves 68, and the groove wall of the sliding groove 66 is provided with two second limiting grooves 69. The first limiting grooves 68 and the second limiting grooves 69 are arranged opposite to each other. The two ends of the spring 67 are respectively fixedly inserted into the corresponding first limiting grooves 68 and second limiting grooves 69. The spring 67 is located on the side of the moving part 65 pointing towards the center of the inner wheel 41.
[0028] Furthermore, baffles 7 are provided on both sides of the inner wheel body 41. The baffles 7 are fixedly installed on the inner wheel body 41 and press against the end face of the moving part 65 of the moving frame 6. An indicator block 71 is provided on its outer wall to allow the staff to determine the rotation position of the inner wheel body 41. The indicator block 71 can be a fluorescent strip.
[0029] Furthermore, a counterweight 72 is embedded in one side of the shaft hole 52 of the inner wheel body 41. The counterweight 72 is located on the side opposite to the length extension direction of the shaft hole 52. While providing a certain degree of directional force for the self-locking wheel 4 to reset, it can also make it easier for the operator to roll the central shaft 51 to the area above the center of the inner wheel body 41 by the jerking sensation generated when the wheel body is offset from the center.
[0030] The specific implementation process of this utility model is as follows: When the device is unloaded, the moving frame 6, under the action of the spring 67, drives the bearing 61 to shift away from the center area of the inner wheel body 41, the self-locking wheel 4 self-locks and cannot roll easily, the device cannot move on its own, and at the same time the loading plane of the frame 1 tilts; after stopping, the self-locking wheel 4 can be pre-rolled to the state where the central shaft 51 is above the center of the inner wheel body 41 by observing the indicator block 71; the state of the self-locking wheel 4 can also be judged by observing the angle of the loading plane of the vehicle body; when the device is loaded with materials, if the central shaft 51 is above the center of the inner wheel body 41, the material is loaded directly, the frame 1 presses down the wheel frame 5, and drives the central shaft 51 to press down to the center position of the inner wheel body 41. At this time, pulling or pushing the device can drive the vehicle body to move.
[0031] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. The present utility model can be used in similar products. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.
Claims
1. A transfer device for preventing slippage of materials used in the production of polyester low-elasticity yarn, comprising a frame (1) and a push rod (2), characterized in that: Multiple wheel frames (5) are fixed to the bottom of the side of the frame (1) away from the push rod (2), and self-locking wheels (4) are installed on the wheel frames (5); The wheel frame (5) is provided with a central shaft (51), which passes through the self-locking wheel (4). The self-locking wheel (4) includes an inner wheel body (41) and an outer tire (42) disposed on the inner wheel body (41). The inner wheel body (41) is provided with a shaft hole (52), which is a strip-shaped hole formed radially from the center of the inner wheel body (41) to one side of the inner wheel body (41). A bearing (61) is disposed therein. The bearing (61) is equipped with... The inner wheel (41) is provided with an elastic element and is mounted on the central shaft (51). The elastic element can prevent the center of the central shaft (51) and the center of the inner wheel (41) from coinciding. When the frame (1) is unloaded, the center of the central shaft (51) is located away from the center of the inner wheel (41) under the action of the elastic element. When the frame (1) is loaded with materials, the central shaft (51) is located at the center of the inner wheel (41), and the plane on which the frame (1) carries the materials is horizontal. The frame (1) is rotatably mounted with casters (3) on the bottom side near the push rod (2).
2. The anti-slip transfer device for polyester low-elasticity yarn production materials according to claim 1, characterized in that: The bearing (61) is mounted on the inner wheel body (41) via a movable frame (6). The movable frame (6) is slidably connected to the inner wheel body (41), and the sliding direction of the movable frame (6) is consistent with the length direction of the shaft hole (52).
3. The anti-slip transfer device for polyester low-elasticity yarn production materials according to claim 2, characterized in that: The inner wheel body (41) has sliding grooves (66) on both sides. The sliding grooves (66) are strip-shaped grooves that are consistent with the length direction of the shaft hole (52). The two ends of the movable frame (6) are fixed with movable parts (65), and the movable parts (65) are slidably engaged with the sliding grooves (66).
4. The anti-slip transfer device for polyester low-elasticity yarn production materials according to claim 3, characterized in that: The elastic element is provided in the sliding groove (66), one end of which is connected to the moving part (65), and the other end is connected to one side wall of the sliding groove (66).
5. The anti-slip transfer device for polyester low-elasticity yarn production materials according to claim 4, characterized in that: The elastic element is a spring (67).
6. The anti-slip transfer device for polyester low-elasticity yarn production materials according to claim 5, characterized in that: The moving part (65) is provided with a first limiting groove (68), and the sliding groove (66) is provided with a second limiting groove (69) on its groove wall. The two ends of the elastic member are respectively fixedly inserted into the first limiting groove (68) and the second limiting groove (69).
7. The anti-slip transfer device for polyester low-elasticity yarn production materials according to claim 2, characterized in that: The inner wheel body (41) is covered with baffles (7) on both sides, and the baffles (7) are at least partially in contact with the movable frame (6).
8. A transfer device for preventing slippage of materials used in the production of polyester low-elasticity yarn according to claim 1, characterized in that: The inner wheel body (41) is provided with a counterweight (72), which is located on the side of the shaft hole (52) away from the central shaft (51).
9. A transfer device for preventing slippage of materials used in the production of low-elasticity polyester yarn according to claim 1, characterized in that: The self-locking wheel (4) is provided with an indicator block (71).
10. A transfer device for preventing slippage of materials used in the production of polyester low-elasticity yarn according to claim 1, characterized in that: All the self-locking wheels (4) are arranged to rotate synchronously on their central shafts (51).