Winding device for superfine steel wire production

Abstract

The invention relates to the technical field of metal wire machining devices, in particular to a winding device for superfine steel wire production, which comprises a traction guide mechanism and a winding mechanism, and the winding mechanism comprises a winding frame, a winding wheel and an adjusting mechanism. When the adjusting mechanism drives the winding wheel to rotate around the axis of the winding wheel at a constant speed in a directional mode, the axis of the winding wheel rotates on the vertical face at a constant speed in a directional mode, and under the cooperation of pushing of a steel wire coil formed on the winding wheel and rotation of the axis of the winding wheel, the contact point of a steel wire rope to be wound and the winding wheel changes between the two ends of the winding wheel in a reciprocating mode. The included angle between the steel wire rope to be wound and the axis of the winding wheel is periodically changed, and the contact point automatically moves towards the first end after moving from the first end to the second end of the winding wheel, so that the winding direction is changed. Due to the fact that the processes of speed reduction, reversing and acceleration do not exist when the winding direction is changed, the winding speed is kept stable, the problem that the steel wire rope at the end of the winding wheel is stacked is solved, and meanwhile the winding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal wire processing devices, and in particular to a winding device for producing ultra-fine steel wires. Background Art

[0002] Steel wire is one of the four major types of steel: plate, tube, profile and wire. The main processes of steel wire production and processing include raw material selection, removal of iron oxide scale, drying, coating treatment, heat treatment, wire drawing, plating treatment, etc.

[0003] With the rapid development of industrialization, the demand for wire ropes and other cables is increasing. At present, in order to improve the efficiency and quality of wire rope preparation, some companies have begun to use double twisting machines to reprocess wire ropes. The device mainly includes an over-twisting device and an adjustment device for adjusting torsional stress; after the steel wire is produced, a winding device is required to reel and wind the produced wire rope.

[0004] In the prior art, there are devices for winding the steel wire after production and processing, such as a steel wire winding device disclosed in Authorization Announcement No. CN212976329U, and a steel wire rope winding device with a limiting function disclosed in Authorization Announcement No. CN220766095U. During use, when winding the end position of the winding wheel, it is necessary to change the winding direction. However, when changing the winding direction, the relative movement speed between the steel wire rope and the winding wheel needs to be reduced first, and then the relative movement speed is accelerated after the direction of the relative movement is changed. Otherwise, the steel wire at the end of the winding wheel will be stacked, affecting the winding effect. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention proposes a winding device for producing ultra-fine steel wires, which has better winding effect and higher winding efficiency.

[0006] The present invention discloses a winding device for producing ultra-fine steel wires, which adopts the following technical scheme: it comprises a traction guide mechanism and a winding mechanism, wherein the traction guide mechanism is arranged at a discharge port of the ultra-fine steel wire production mechanism, and the steel wire rope to be wound is led out from the discharge port, passes through the traction guide mechanism and then extends to the winding mechanism; the steel wire rope to be wound between the traction guide mechanism and the winding mechanism is always in a tensioned state; the winding mechanism comprises: winding rack; The winding wheel is rotatably mounted on the winding frame around its own axis; The adjusting mechanism is configured to drive the winding wheel to rotate at a uniform speed and direction around its own axis, and at the same time drive the winding wheel to revolve at a uniform speed and direction, so that the axis of the winding wheel rotates in a vertical plane, the revolving axis is perpendicular to the axis of the winding wheel, and the midpoint of the revolving axis and the axis of the winding wheel are collinear, and the outlet of the traction guide mechanism and the revolving center are in the same vertical plane; thereby, under the push of the steel wire roll formed on the winding wheel and the cooperation of the uniform speed and direction revolution of the axis of the winding wheel, the contact point between the steel wire rope to be wound and the winding wheel changes back and forth between the two ends of the winding wheel, the angle between the steel wire rope to be wound and the axis of the winding wheel changes periodically, and after the contact point moves from the first end of the winding wheel to the second end, it automatically moves toward the first end.

[0007] Optionally, a rotating frame is installed on the winding frame, the rotating frame is "U"-shaped, the opening is facing the production mechanism, and a rotating column is fixedly connected to one end of the rotating frame facing the winding frame, and the rotating column can be rotatably installed on the winding frame around its own axis; the axis of the rotating column is perpendicular to the axis of the winding wheel, and the axis of the wire rope at the discharge port position and the axis of the rotating column are located in the same vertical plane; The two ends of the winding wheel are respectively connected with a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are coaxial with the winding wheel, and the first connecting rod and the second connecting rod can be rotatably installed on the rotating frame around their own axes; The adjusting mechanism comprises a first motor and a second motor. The output end of the first motor passes through the rotating frame and is connected to the first connecting rod or the second connecting rod; the output end of the second motor is connected to the rotating column.

[0008] Optionally, the first connecting rod and the second connecting rod are both telescopic rods.

[0009] Optionally, the traction and guiding mechanism includes a wire feeding assembly, a tensioning assembly and a correction assembly. The wire feeding assembly is used to drive the wire rope to move from the production mechanism to the winding mechanism; the tensioning assembly keeps the wire rope between the production mechanism and the winding mechanism in a tensioned state at all times; and the correction assembly keeps the starting point of the wire rope between the production mechanism and the winding mechanism in a preset position.

[0010] Optionally, the wire feeding assembly includes two wire feeding wheels, which are rotatably installed at the discharge port around their own axes. The two wire feeding wheels rotate in opposite directions, and the wire rope passes between the two wire feeding wheels.

[0011] Optionally, the tensioning assembly includes a tensioning wheel and two guide blocks, the two guide blocks are fixed at the discharge port and are arranged at one end of the wire feeding assembly close to the winding mechanism; vertical guide grooves are provided on the opposite sides of the two guide blocks, and the tensioning wheel is provided between the two guide blocks and is located above the wire rope; both ends of the tensioning wheel are slidably installed in the guide grooves, and a tensioning spring is provided below the two guide columns, and the tensioning spring has a tendency to move the tensioning wheel downward.

[0012] Optionally, the correction assembly includes two pillars and two correction wheels, the two pillars are vertically arranged on the side of the tensioning assembly facing the winding mechanism, the two correction wheels are rotatably mounted on the two pillars, and the wire rope passes between the two correction wheels.

[0013] Optionally, the distance between the two wire feeding wheels is adjustable, and the correction wheel is detachably mounted on the support column.

[0014] Optionally, the first motor has a higher rotation speed than the second motor.

[0015] Optionally, a protective sleeve is provided between the production mechanism and the winding mechanism, and the protective sleeve is sleeved on the outside of the steel wire rope.

[0016] The beneficial effects of the present invention are as follows: a winding device for producing ultra-fine steel wires of the present invention drives the winding wheel to rotate at a uniform speed and direction around its own axis through an adjustment mechanism, and at the same time, causes the winding wheel to revolve at a uniform speed and direction, so that the axis of the winding wheel rotates on a vertical plane. Under the push of the steel wire roll formed on the winding wheel and the cooperation of the rotation of the axis of the winding wheel, the contact point between the steel wire rope to be wound and the winding wheel changes back and forth between the two ends of the winding wheel, and the angle between the steel wire rope to be wound and the axis of the winding wheel changes periodically, and the contact point automatically moves to the first end after moving from the first end of the winding wheel to the second end. Thus, the winding direction can be automatically changed when winding to the end position of the winding wheel. Since there is no process of deceleration, reversal, and acceleration when changing the winding direction, the winding speed remains stable, thereby avoiding the problem of stacking of the steel wire rope at the end of the winding wheel, and improving the winding efficiency at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 It is a left side view of the present invention; Figure 4 for Figure 3 A cross-sectional view taken along section BB; Figure 5 It is a structural schematic diagram of the winding mechanism of the present invention without the winding frame; Figure 6 It is a schematic diagram of the initial state of the winding mechanism in the present invention; Figure 7 It is a schematic diagram of the state of the winding mechanism when the winding wheel rotates around the axis of the rotating column at an acute angle in the present invention; Figure 8 It is a schematic diagram of the state of the winding mechanism when the winding wheel rotates 90° around the axis of the rotating column in the present invention; Fig. 9 It is a schematic diagram of the state of the winding mechanism when the winding wheel rotates around the axis of the rotating column at an obtuse angle in the present invention; Fig.10 It is a schematic diagram of the state of the winding mechanism when the winding wheel rotates 180° around the axis of the rotating column in the present invention.

[0019] In the figure: 100, production mechanism; 110, production box; 111, discharge port; 120, wire feeding wheel; 131, tensioning wheel; 132, guide block; 133, guide groove; 140, pillar; 141, correction wheel; 200, winding mechanism; 210, winding frame; 220, rotating frame; 221, rotating column; 230, winding wheel; 231, first connecting rod; 232, second connecting rod; 240, first motor; 250, second motor; 300, wire rope. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 10 As shown, a winding device for producing ultra-fine steel wire provided by an embodiment of the present invention comprises a traction guide mechanism and a winding mechanism 200. The production mechanism 100 of ultra-fine steel wire comprises a production box 110. The production box 110 is provided with a discharge port 111 at one end facing the winding mechanism 200. The traction guide mechanism is arranged at the discharge port 111 of the production mechanism 100. The steel wire rope 300 to be wound is led out from the discharge port 111, passes through the traction guide mechanism and then extends to the winding mechanism 200. The steel wire rope 300 to be wound between the traction guide mechanism and the winding mechanism 200 is always in a tensioned state. The winding mechanism 200 comprises a winding frame 210, a winding wheel 230 and an adjusting mechanism. Winding frame 210; The winding wheel 230 is rotatably mounted on the winding frame 210 around its own axis; The adjusting mechanism is configured to drive the winding wheel 230 to rotate at a uniform speed and direction around its own axis, and at the same time drive the winding wheel 230 to revolve at a uniform speed and direction, so that the axis of the winding wheel 230 rotates in a vertical plane, the revolving axis is perpendicular to the axis of the winding wheel 230, and the revolving axis is collinear with the midpoint of the axis of the winding wheel 230, and the outlet of the traction guide mechanism and the revolving center are in the same vertical plane; thereby, under the push of the steel wire roll formed on the winding wheel 230 and the cooperation of the uniform speed and direction revolution of the axis of the winding wheel 230, the contact point between the steel wire rope 300 to be wound and the winding wheel 230 changes back and forth between the two ends of the winding wheel 230, the angle between the steel wire rope 300 to be wound and the axis of the winding wheel 230 changes periodically, and after the contact point moves from the first end of the winding wheel 230 to the second end, it automatically moves toward the first end.

[0022] When in use, the end of the steel wire rope 300 extending out of the discharge port 111 is fixed to the winding wheel 230, and then the adjustment mechanism is started, and the winding wheel 230 rotates around its own axis, so as to reel in the steel wire rope 300, and the axis of the winding wheel 230 undergoes a uniform and directional revolution on the vertical plane. Since the revolution axis is perpendicular to the axis of the winding wheel 230, the revolution axis and the midpoint of the axis of the winding wheel 230 are collinear, and the outlet of the traction guide mechanism and the revolution center are in the same vertical plane; therefore, during the rotation and revolution of the winding wheel 230, During the process, the steel wire rope 300 is continuously wound onto the winding wheel 230 to form a steel wire coil. Under the push of the steel wire coil formed on the winding wheel 230 and the uniform and directional revolution of the axis of the winding wheel 230, the contact point between the steel wire rope 300 to be wound and the winding wheel 230 changes back and forth between the two ends of the winding wheel 230. The angle between the steel wire rope 300 to be wound and the axis of the winding wheel 230 changes periodically, and the contact point automatically moves to the first end after moving from the first end of the winding wheel 230 to the second end. Since there is no deceleration, reversal, and acceleration process in the prior art when changing the winding direction, the winding speed of the present invention remains stable, thereby avoiding the problem of stacking of the steel wire rope 300 at the end of the winding wheel, ensuring the winding effect while improving the winding efficiency.

[0023] In a further embodiment, a rotating frame 220 is installed on the winding frame 210, and the rotating frame 220 is "U"-shaped, and the opening of the rotating frame 220 faces the production mechanism 100. A rotating column 221 is fixedly connected to one end of the rotating frame 220 facing the winding frame 210, and the axis of the rotating column 221 is perpendicular to the axis of the winding wheel 230, and the axis of the wire rope 300 at the discharge port 111 is located in the same vertical plane as the axis of the rotating column 221; The first connecting rod 231 and the second connecting rod 232 are respectively connected to the two ends of the winding wheel 230. The first connecting rod 231 and the second connecting rod 232 are coaxial with the winding wheel 230, and the first connecting rod 231 and the second connecting rod 232 can be rotatably installed on the rotating frame 220 around their own axes. The adjustment mechanism includes a first motor 240 and a second motor 250 . The output end of the first motor 240 passes through the rotating frame 220 and is connected to the first connecting rod 231 or the second connecting rod 232 . The output end of the second motor 250 is connected to the rotating column 221 .

[0024] When in use, one end of the steel wire rope 300 extending out of the discharge port 111 is fixed to the winding wheel 230, and then the first motor 240 and the second motor 250 are started. The first motor 240 drives the winding wheel 230 to rotate around its own axis, thereby winding and winding the steel wire rope 300. The second motor 250 drives the rotating frame 220 to rotate, so that the axis of the winding wheel 230 rotates at a uniform speed in the vertical plane, thereby causing the contact point between the steel wire rope 300 to be wound and the winding wheel 230 to change back and forth. After the contact point moves to the end of one end of the winding wheel 230, it immediately moves to the other end; viewed from the side of the rotating frame 220 where the first motor 240 is installed, the first motor 240 drives the winding wheel 230 to rotate clockwise. Figure 4 , the second motor 250 drives the rotating frame 220 to rotate clockwise.

[0025] In the initial state, the axis of the winding wheel 230 is in a vertical state. Figure 4 , Figure 6 As shown, thereafter, as the first motor 240 and the second motor 250 rotate, the wire rope 300 is wound onto the winding wheel 230. Due to the continuous rotation of the winding wheel 230 and the continuous push of the wound wire rope 300, the contact position of the wound wire rope 300 with the winding wheel 230 is continuously changed, and moves toward the end close to the second connecting rod 232. The state of the winding mechanism 200 thereafter is as follows: Figure 7 , Figure 8 , Fig. 9 , Fig.10 The order of changes, the position where the steel wire rope 300 to be wound and the winding wheel 230 contact each other is constantly close to the second connecting rod 232, when the second motor 250 drives the winding wheel 230 to rotate half a circle, the winding wheel 230 is in a vertical state again, and the position where the steel wire rope 300 to be wound and the winding wheel 230 contact each other is located at the end of the winding wheel 230 close to the second connecting rod 232, and a layer of steel wire coils is densely arranged on the winding wheel 230, such as Fig.10As shown, thereafter, the second motor 250 continues to drive the rotating frame 220 to rotate around the axis of the rotating column 221. When the axis of the winding wheel 230 is no longer vertical, the position where the steel wire rope 300 to be wound contacts the winding wheel 230 moves from the end close to the second connecting rod 232 to the end close to the first connecting rod 231, and the winding direction of the steel wire rope 300 changes, and the steel wire rope 300 is wound from the end close to the second connecting rod 232 to the end close to the first connecting rod 231. In addition, in the process of changing the winding direction of the steel wire rope 300, the rotation speeds of the first motor 240 and the second motor 250 remain unchanged, thereby ensuring the winding speed of the steel wire rope 300. At the same time, compared with the winding device in the prior art, since there is no process of deceleration, reversal, and acceleration when the winding direction is changed at the winding end position, the winding speed remains stable, and the problem of stacking of the steel wire rope 300 at the end of the winding wheel is avoided, thereby ensuring the winding effect and improving the winding efficiency. After the second motor 250 drives the rotating frame 220 to rotate half a circle again, a layer of wire coils is densely arranged on the winding wheel 230 again, and the winding wheel 230 returns to the initial position. Thereafter, the above process is repeated until the winding is completed.

[0026] In a further embodiment, the first connecting rod 231 and the second connecting rod 232 are both telescopic rods, so that the work of installing the winding wheel 230 before winding and removing the winding wheel 230 after winding is completed is more convenient and quick; the first connecting rod 231 and the second connecting rod 232 are connected to a baffle at one end facing the winding wheel 230, and the first connecting rod 231 and the second connecting rod 232 have a tendency to stretch, so as to adapt to winding wheels 230 of different lengths and be able to clamp winding wheels 230 of different lengths.

[0027] In a further embodiment, the traction and guiding mechanism includes a wire feeding assembly, a tensioning assembly and a correction assembly. The wire feeding assembly includes two wire feeding wheels 120. The two wire feeding wheels 120 are installed at the discharge port 111 and can rotate around their own axes. The two wire feeding wheels 120 rotate in opposite directions, and the wire rope 300 passes between the two wire feeding wheels 120. The wire feeding assembly is used to assist the wire rope 300 to move from the production mechanism 100 to the winding mechanism 200.

[0028] The tensioning assembly includes a tensioning wheel 131 and two guide blocks 132. The two guide blocks 132 are fixed to the discharge port 111 and are arranged at one end of the wire feeding assembly close to the winding mechanism 200. A vertical guide groove 133 is arranged on the opposite side of the two guide blocks 132. The tensioning wheel 131 is arranged between the two guide blocks 132 and is located above the wire rope 300. Both ends of the tensioning wheel 131 are coaxially connected with guide columns, which are slidably installed in the guide grooves 133, and tensioning springs are arranged under the two guide columns. The tensioning springs have a tendency to move the tensioning wheel 131 downward, so that the wire rope 300 to be wound between the production mechanism 100 and the winding mechanism 200 is always kept in a tensioned state.

[0029] The correction assembly includes two pillars 140 and two correction wheels 141. The two pillars 140 are vertically arranged on the side of the tensioning assembly facing the winding mechanism 200. The two correction wheels 141 are rotatably installed on the two pillars 140 respectively, and the wire rope 300 passes between the two correction wheels 141. The correction assembly keeps the position of the wire rope 300 extending out of the discharge port 111 unchanged, so that the axis of the wire rope 300 extending out of the discharge port 111 is in the same vertical plane as the axis of the rotating column 221.

[0030] In a further embodiment, the distance between the two wire feeding wheels 120 is adjustable, and the correction wheel 141 is detachably mounted on the support 140, so that it can adapt to steel wire ropes 300 of different diameters, and can reel in steel wire ropes 300 of different diameters, thereby improving the universality of the device.

[0031] In a further embodiment, the speed of the first motor 240 is greater than that of the second motor 250, and a speed reducer may be connected between the second motor 250 and the rotating column 221. When the steel wire rope 300 is closely wound on the winding wheel 230, N turns are wound around it, and the rotation speed of the winding wheel 230 and the rotation speed of the rotating frame 220 are set to: when the winding wheel 230 rotates N turns around its own axis, the rotating frame 220 rotates half a turn around the axis of the rotating column 221.

[0032] In a further embodiment, a protective sleeve is further provided between the production mechanism 100 and the winding mechanism 200, and the protective sleeve is sleeved on the outside of the steel wire rope 300, thereby preventing the steel wire rope 300 to be wound up from contacting the workers, thereby protecting the workers' personal safety.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A winding device for producing ultra-fine steel wire, characterized in that: It includes a traction guide mechanism and a winding mechanism. The traction guide mechanism is arranged at the discharge port of the ultra-fine steel wire production mechanism. The steel wire rope to be wound is led out from the discharge port, passes through the traction guide mechanism and then extends to the winding mechanism. The steel wire rope to be wound between the traction guide mechanism and the winding mechanism is always in a tensioned state; The winding mechanism includes: winding rack; The winding wheel is rotatably mounted on the winding frame around its own axis; The adjusting mechanism is configured to drive the winding wheel to rotate at a uniform speed and direction around its own axis, and at the same time drive the winding wheel to revolve at a uniform speed and direction, so that the axis of the winding wheel rotates in a vertical plane, the revolving axis is perpendicular to the axis of the winding wheel, and the midpoint of the revolving axis and the axis of the winding wheel are collinear, and the outlet of the traction guide mechanism and the revolving center are in the same vertical plane; thereby, under the push of the steel wire roll formed on the winding wheel and the cooperation of the uniform speed and direction revolution of the axis of the winding wheel, the contact point between the steel wire rope to be wound and the winding wheel changes back and forth between the two ends of the winding wheel, the angle between the steel wire rope to be wound and the axis of the winding wheel changes periodically, and after the contact point moves from the first end of the winding wheel to the second end, it automatically moves toward the first end.

2. A winding device for producing ultra-fine steel wire according to claim 1, characterized in that: A rotating frame is installed on the winding frame. The rotating frame is "U"-shaped, with its opening facing the production mechanism. A rotating column is fixedly connected to one end of the rotating frame facing the winding frame. The rotating column is installed on the winding frame so as to rotate around its own axis. The axis of the rotating column is perpendicular to the axis of the winding wheel, and the axis of the wire rope at the discharge port is located in the same vertical plane as the axis of the rotating column. The two ends of the winding wheel are respectively connected with a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are coaxial with the winding wheel, and the first connecting rod and the second connecting rod can be rotatably installed on the rotating frame around their own axes; The adjusting mechanism comprises a first motor and a second motor. The output end of the first motor passes through the rotating frame and is connected to the first connecting rod or the second connecting rod; the output end of the second motor is connected to the rotating column.

3. A winding device for producing ultra-fine steel wire according to claim 2, characterized in that: The first connecting rod and the second connecting rod are both telescopic rods.

4. A winding device for producing ultra-fine steel wire according to claim 1, characterized in that: The traction and guiding mechanism includes a wire feeding assembly, a tensioning assembly and a correction assembly. The wire feeding assembly is used to drive the wire rope to move from the production mechanism to the winding mechanism; the tensioning assembly keeps the wire rope between the production mechanism and the winding mechanism in a tensioned state at all times; the correction assembly keeps the starting point of the wire rope between the production mechanism and the winding mechanism at a preset position.

5. A winding device for producing ultra-fine steel wire according to claim 4, characterized in that: The wire feeding assembly comprises two wire feeding wheels, which are rotatably installed at the discharge port around their own axes. The two wire feeding wheels rotate in opposite directions, and the wire rope passes between the two wire feeding wheels.

6. A winding device for producing ultra-fine steel wire according to claim 5, characterized in that: The tensioning assembly includes a tensioning wheel and two guide blocks. The two guide blocks are fixed at the discharge port and are arranged at one end of the wire feeding assembly close to the winding mechanism. Vertical guide grooves are arranged on the opposite sides of the two guide blocks. The tensioning wheel is arranged between the two guide blocks and is located above the wire rope. Both ends of the tensioning wheel are slidably installed in the guide grooves, and a tensioning spring is arranged under the two guide columns. The tensioning spring has a tendency to move the tensioning wheel downward.

7. A winding device for producing ultra-fine steel wire according to claim 6, characterized in that: The correction assembly includes two pillars and two correction wheels. The two pillars are vertically arranged on one side of the tensioning assembly facing the winding mechanism. The two correction wheels are rotatably installed on the two pillars respectively, and the wire rope passes between the two correction wheels.

8. The winding device for producing ultra-fine steel wire according to claim 7, characterized in that: The distance between the two wire feeding wheels is adjustable, and the correction wheel is detachably mounted on the support column.

9. The winding device for producing ultra-fine steel wire according to claim 2, characterized in that: The first motor has a higher rotation speed than the second motor.

10. A winding device for producing ultra-fine steel wire according to any one of claims 1 to 9, characterized in that: A protective sleeve is also provided between the production mechanism and the winding mechanism, and the protective sleeve is sleeved on the outside of the steel wire rope.

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