A sizing device for steel wire rope production

CN224784617UActive Publication Date: 2026-09-22HEBEI JINGSHUANG HAIXIANG WIRE ROPE MANUFACTURING CO LTD
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Patent Information

Application Number
CN202522388613.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-11
Publication Date
2026-09-22
Estimated Expiration
2035-11-11

AI Technical Summary

Technical Problem

但是在进行钢丝绳定径操作时,不能精准调节两个定径辊之间距离,多不同粗细的钢丝绳进行按压定径,且钢丝绳定径前需要进行引导,减少钢丝绳拉扯造成外壁面磨损影响,且在定径中钢丝绳在自身重力作用下,容易下坠,造成弯曲影响多段持续定径配合

Benefits of technology

1.本实用新型通过设置固定座提供着力点,牵引组件上配合可转动牵引轮,并在牵引槽配合下,引导钢丝绳持续往引导组件与定径组件中移动,减少端部磕碰磨损,两组牵引组件,在牵引辊的配合下,接引钢丝绳位于中间位置进入到上定径辊上方,液压缸控制U型架升降,并在上定径辊与下定径辊配合下,对经过的不同粗细的钢丝绳进行按压定径配合。

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Abstract

The utility model relates to steel wire rope production technical field, concretely is a kind of sizing device for steel wire rope production, including fixed base, fixed base upper surface left end is equipped with traction assembly, fixed base upper surface is sequentially equipped with two groups of guide assembly and positioning frame from left to right, positioning frame is equipped with sizing assembly uniformly;The sizing device for steel wire rope production provides effort point by setting fixed base, cooperation rotatable traction wheel is on traction assembly, and under the cooperation of traction groove, guide steel wire rope moves in guide assembly and sizing assembly continuously, two groups of traction assembly, under the cooperation of traction roll, guide steel wire rope is located in middle position and enters the upper sizing roller, hydraulic cylinder controls U-shaped frame lifting, and under the cooperation of upper sizing roller and lower sizing roller, the steel wire rope of different thicknesses that pass is pressed sizing cooperation, pointer is slid cooperatively in through slot, and cooperating scale line is on supporting plate, corresponding numerical value is on scale line, realize the accurate up-down movement of U-shaped frame.
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Description

Technical Field

[0001] This utility model relates to the field of wire rope production technology, specifically to a sizing device for wire rope production. Background Technology

[0002] Steel wire rope is a structural material made of multiple strands of steel wire twisted together. It is usually used in applications that provide strength and abrasion resistance. After the steel wire rope is twisted or combined, it needs to be squeezed by a sizing device to reduce the gaps between the wires or strands. However, when performing wire rope sizing, the distance between the two sizing rollers cannot be precisely adjusted. Wire ropes of different thicknesses are pressed and sizing, and the wire rope needs to be guided before sizing to reduce the impact of wire rope pulling on the outer wall surface wear. In addition, during sizing, the wire rope is prone to sag under its own weight, causing bending and affecting the coordination of multiple continuous sizing stages. Utility Model Content

[0003] The purpose of this invention is to provide a sizing device for steel wire rope production to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A sizing device for steel wire rope production includes a fixed base, a traction component at the left end of the upper surface of the fixed base, and two sets of guide components and positioning frames arranged sequentially from left to right on the upper surface of the fixed base, with sizing components provided on each positioning frame. The traction assembly includes symmetrical columns, with a rotating traction wheel between the two columns, and a traction groove is formed in the middle of the outer wall of the traction wheel; The guiding assembly includes symmetrical vertical plates, and a guiding roller is provided at the middle of the two vertical plates, which is flush with the traction wheel. A groove for passing through is opened in the middle of the outer wall of the guiding roller. The positioning frame includes two symmetrical support plates. A sliding groove is provided on the top of the opposite side of the support plates. A trapezoidal groove is provided at the bottom of the sliding groove. A through groove communicating with the outside is provided inside the trapezoidal groove. A top plate is provided on the top of the support plates. A lower sizing roller is provided between the two support plates. A scale line is provided on the outer wall of the support plates near one edge. The sizing assembly includes a U-shaped frame and a hydraulic cylinder connected to the top of the U-shaped frame. The hydraulic cylinder is located on the upper surface of the top plate. A trapezoidal block is provided on the outer wall of the U-shaped frame. A pointer is provided at the bottom of the outer wall of the trapezoidal block. An upper sizing roller is provided inside the U-shaped frame.

[0005] Furthermore, the bottom of the column is welded and fixed to the fixed base, the traction wheel is rotatably connected to the column through a rotating shaft, and the edge of the traction groove is arc-shaped.

[0006] In this invention, the cooperation between the column and the traction wheel facilitates the guidance of the steel wire rope that needs to be initially sized. The flexible rotation of the traction wheel helps the steel wire rope to be pulled flexibly, reducing the scratch damage to the outer wall caused by the steel wire rope contacting the column.

[0007] Specifically, the guide assembly has trays on both sides, one end of the tray is fixedly connected to the column by screws, the other end of the tray is fixedly connected to the vertical plate by screws, and one end of the tray between the support plate and the vertical plate is fixedly connected to the support plate by screws. The tray is U-shaped.

[0008] In this invention, the steel wire rope is guided and conveyed by the cooperation of two guiding components, reducing the impact of the steel wire rope sagging in the middle on the sizing. Before sizing, the position of the steel wire rope is restricted by the guiding components, so that the steel wire rope is kept in the middle position when it enters the sizing component. Four trays are used to prevent the steel wire rope from sagging in the middle under its own weight, which would affect the guiding and conveying. The trays support the bottom of the steel wire rope to reduce the impact of sagging and bending.

[0009] It should be noted that one side of the traction wheel is inserted into one end of the pallet and rotates in engagement, and the lower sizing roller is inserted into the other end of the pallet and rotates in engagement.

[0010] In this invention, the ends of two sets of pallets respectively contact and rotate with the corresponding traction wheels, and the corresponding lower sizing rollers contact and rotate, guiding the wire rope to be discharged stably and reducing the impact of blockage and jamming.

[0011] Furthermore, the bottom of the vertical plate is fixed to the top of the fixed base by bolts, the guide roller is rotatably connected to the vertical plate by a rotating shaft, and the cross-section of the through groove is trapezoidal.

[0012] In this invention, the guide groove on the guide roller guides the wire rope to the middle position of the guide roller, which helps to keep it in the middle position and facilitates its entry into the space between the upper and lower sizing rollers, reducing the impact of the offset position on the wire rope pressing and sizing.

[0013] It is worth noting that the bottom of the support plate is fixedly connected to the fixing seat by bolts, the width of the outer wall of the top plate is adapted to the width of the support plate, the lower surface of the top plate is provided with inserts near the four corners, the top of the inserts is provided with positioning bolts, and the top of the support plate is provided with slots corresponding to the inserts.

[0014] In this utility model, the top plate is connected to the slot by inserting a post, and the positioning bolt passes through the post from the top of the top plate and is threaded to the screw hole at the bottom of the slot, so as to realize the combination and fixation of the top plate and the support plate. The positioning bolt can be removed to facilitate the removal of the top plate and the inspection or replacement of the sizing component on the top plate.

[0015] Specifically, the hydraulic cylinder is fixedly connected to the top plate by bolts, the end of the telescopic arm of the hydraulic cylinder is fixed to the top of the U-shaped frame, the width of the outer wall of the U-shaped frame is adapted to the width of the inner wall of the slide groove, the trapezoidal block and the U-shaped frame are integrally formed, the width of the outer wall of the trapezoidal block is adapted to the width of the inner wall of the trapezoidal groove, the pointer and the trapezoidal block are integrally formed, the bottom of the pointer passes through the through groove, and the tip of the pointer points to the scale line.

[0016] In this invention, the telescopic arm of the hydraulic cylinder slides in conjunction with the top plate. The extension or retraction of the telescopic arm enables the U-shaped frame to move up and down, thereby adjusting the distance between the upper and lower sizing rollers. This facilitates pressing and sizing of wire ropes of different thicknesses. The trapezoidal block and trapezoidal groove are inserted to increase the stability of the vertical movement of the U-shaped frame. The pointer tip points to the corresponding scale line, and the value of the scale line allows for precise adjustment of the downward movement distance of the upper sizing roller, thus achieving precise adjustment of the distance between the upper and lower sizing rollers.

[0017] In addition, the upper sizing roller is rotatably connected to the U-shaped frame via a rotating shaft, and the lower sizing roller is rotatably connected to the support plate via a rotating shaft. The lower sizing roller and the upper sizing roller are fitted and correspond to each other, and the width of the sizing groove on the outer wall is matched.

[0018] In this invention, the upper sizing roller rotates with the U-shaped frame, and the lower sizing roller rotates with the support plate, thereby moving the wire rope pressed by the upper and lower sizing rollers. This continuous sizing of the wire rope reduces the gap between the strands of the wire rope.

[0019] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model provides a force point by setting a fixed seat. The traction assembly is equipped with a rotatable traction wheel, and with the cooperation of the traction groove, the wire rope is guided to move continuously into the guide assembly and the sizing assembly, reducing end collision and wear. With the cooperation of the traction roller, the two sets of traction assemblies guide the wire rope to enter the upper sizing roller at the middle position. The hydraulic cylinder controls the lifting and lowering of the U-shaped frame, and with the cooperation of the upper sizing roller and the lower sizing roller, the wire ropes of different thicknesses are pressed and sizing.

[0020] 2. This utility model achieves precise up-and-down movement of the U-shaped frame by setting a pointer to slide in the through groove and having scale lines on the support plate with corresponding values ​​on the scale lines. This enables precise adjustment of the distance between the upper and lower sizing rollers, allowing for twisting and pressing of steel wire ropes of different thicknesses to achieve sizing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the sizing state structure of this utility model; Figure 3 This is a schematic diagram of the separation structure of the fixing base, traction component, and guide component of this utility model; Figure 4 This is a schematic diagram of the combined structure of the fixing base and positioning plate of this utility model; Figure 5 This is a schematic diagram of the combined structure of the top plate and hydraulic cylinder of this utility model; Figure 6 This is a schematic diagram of the U-shaped frame and the upper sizing roller separation structure of this utility model.

[0022] The meanings of the labels in the diagram are as follows: 1. Fixed base; 2. Traction assembly; 20. Column; 21. Traction wheel; 210. Traction groove; 3. Guiding assembly; 30. Vertical plate; 31. Guiding roller; 310. Wire guide groove; 4. Positioning frame; 40. Support plate; 400. Slide groove; 401. Trapezoidal groove; 402. Through groove; 403. Scale line; 404. Slot; 41. Top plate; 410. Insert column; 411. Positioning bolt; 42. Lower sizing roller; 5. Sizing assembly; 50. U-shaped frame; 500. Trapezoidal block; 501. Pointer; 51. Hydraulic cylinder; 52. Upper sizing roller; 6. Pallet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6 This embodiment provides a technical solution: A sizing device for steel wire rope production includes a fixed base 1, a traction component 2 is provided at the left end of the upper surface of the fixed base 1, and two sets of guide components 3 and positioning frames 4 are arranged sequentially from left to right on the upper surface of the fixed base 1. Each positioning frame 4 is provided with a sizing component 5. Furthermore, the traction assembly 2 includes symmetrical columns 20, and a rotating traction wheel 21 is provided between the two columns 20. A traction groove 210 is provided in the middle of the outer wall of the traction wheel 21. Specifically, the bottom of the column 20 is welded and fixed to the fixed base 1, the traction wheel 21 is rotatably connected to the column 20 through a rotating shaft, and the edge of the traction groove 210 is arc-shaped.

[0025] In this utility model, the cooperation between the column 20 and the traction wheel 21 facilitates the guidance of the steel wire rope that needs to be initially sized. The flexible rotation of the traction wheel 21 helps the steel wire rope to be pulled flexibly, reducing the scratch damage to the outer wall caused by the steel wire rope contacting the column 20.

[0026] It should be noted that the guide assembly 3 includes symmetrical vertical plates 30, and a guide roller 31 is provided at the position between the two vertical plates 30 and flush with the traction wheel 21. A wire groove 310 is opened in the middle of the outer wall of the guide roller 31. Furthermore, trays 6 are provided on both sides of the guide component 3. One end of the tray 6 is fixedly connected to the column 20 by screws, and the other end of the tray 6 is fixedly connected to the vertical plate 30 by screws. One end of the tray 6 between the support plate 40 and the vertical plate 30 is fixedly connected to the support plate 40 by screws. The tray 6 is U-shaped.

[0027] In this invention, the two guiding components 3 work together to guide and transport the wire rope, reducing the impact of the wire rope sagging in the middle on sizing. Before sizing, the guiding components 3 restrict the position of the wire rope, ensuring that the wire rope is kept in the middle position when it enters the sizing component 5. Four trays 6 are used to prevent the wire rope from sagging in the middle under its own weight, which would affect the guiding and transporting. The trays 6 support the bottom of the wire rope, reducing the impact of sagging and bending.

[0028] It is worth adding that the positioning frame 4 includes two symmetrical support plates 40. A sliding groove 400 is provided on the top of the opposite side of the support plates 40. A trapezoidal groove 401 is provided at the bottom of the sliding groove 400. A through groove 402 communicating with the outside is provided inside the trapezoidal groove 401. A top plate 41 is provided on the top of the support plates 40. A lower sizing roller 42 is provided between the two support plates 40. A scale line 403 is provided on the outer wall of the support plates 40 near one edge. Secondly, one side of the traction wheel 21 is inserted into the end of one of the pallets 6 and rotates in engagement, and the lower sizing roller 42 is inserted into the end of the other pallet 6 and rotates in engagement.

[0029] In this invention, the ends of the two sets of trays 6 respectively contact and rotate with the corresponding traction wheel 21, and the corresponding lower sizing roller 42 contacts and rotates, guiding the wire rope to be discharged stably and reducing the impact of blockage and jamming.

[0030] Furthermore, the bottom of the vertical plate 30 is fixed to the top of the fixed base 1 by bolts, the guide roller 31 is rotatably connected to the vertical plate 30 through a rotating shaft, and the cross-section of the through groove 310 is trapezoidal.

[0031] In this invention, the guide groove 310 on the guide roller 31 guides the wire rope to the middle position of the guide roller 31, which helps to keep it in the middle position and facilitates its entry into the space between the upper sizing roller 52 and the lower sizing roller 42, reducing the impact of the offset position on the wire rope pressing and sizing.

[0032] Specifically, the bottom of the support plate 40 is fixedly connected to the fixing seat 1 by bolts. The width of the outer wall of the top plate 41 is adapted to the width of the support plate 40. The lower surface of the top plate 41 is provided with inserts 410 near the four corners. The top of the inserts 410 is provided with positioning bolts 411. The top of the support plate 40 is provided with slots 404 corresponding to the inserts 410.

[0033] In this utility model, the top plate 41 is inserted into the slot 404 via the insert post 410, and the positioning bolt 411 passes through the insert post 410 from the top of the top plate 41 and is threaded into the screw hole at the bottom of the slot 404, thereby realizing the combination and fixation of the top plate 41 and the support plate 40. The positioning bolt 411 can be removed to facilitate the removal of the top plate 41 for inspection or replacement of the sizing component 5 on the top plate 41.

[0034] The precision of the scale line 403 is 1mm. The value of the scale line 403 pointed to by the tip of the pointer 501 is the distance between the upper sizing roller 52 and the lower sizing roller 42, and is the diameter to be sizing. The bottom scale line 403 is 10mm, which means that the diameter of the minimum sizing wire rope is 10mm.

[0035] In addition, the sizing assembly 5 includes a U-shaped frame 50 and a hydraulic cylinder 51 connected to the top of the U-shaped frame 50. The hydraulic cylinder 51 is located on the upper surface of the top plate 41. A trapezoidal block 500 is provided on the outer wall of the U-shaped frame 50. A pointer 501 is provided at the bottom of the outer wall of the trapezoidal block 500. An upper sizing roller 52 is provided inside the U-shaped frame 50.

[0036] Furthermore, the hydraulic cylinder 51 is fixedly connected to the top plate 41 by bolts, the end of the telescopic arm of the hydraulic cylinder 51 is fixed to the top of the U-shaped frame 50, the width of the outer wall of the U-shaped frame 50 is adapted to the width of the inner wall of the slide groove 400, the trapezoidal block 500 and the U-shaped frame 50 are integrally formed, the width of the outer wall of the trapezoidal block 500 is adapted to the width of the inner wall of the trapezoidal groove 401, the pointer 501 and the trapezoidal block 500 are integrally formed, the bottom of the pointer 501 passes through the through groove 402, and the tip of the pointer 501 points to the scale line 403.

[0037] In this invention, the telescopic arm of the hydraulic cylinder 51 slides in conjunction with the top plate 41. The extension or retraction of the telescopic arm enables the U-shaped frame 50 to move up and down, thereby adjusting the distance between the upper sizing roller 52 and the lower sizing roller 42. This facilitates pressing and sizing of wire ropes of different thicknesses. The trapezoidal block 500 and the trapezoidal groove 401 are inserted into each other to increase the stability of the vertical movement of the U-shaped frame 50. The tip of the pointer 501 points to the corresponding scale line 403. By adjusting the value of the scale line 403, the downward movement distance of the upper sizing roller 52 can be precisely adjusted, thus achieving precise adjustment of the distance between the upper sizing roller 52 and the lower sizing roller 42.

[0038] Specifically, the upper sizing roller 52 is rotatably connected to the U-shaped frame 50 via a rotating shaft, and the lower sizing roller 42 is rotatably connected to the support plate 40 via a rotating shaft. The lower sizing roller 42 is in close contact with the upper sizing roller 52, and the width of the sizing groove on the outer wall is matched.

[0039] In this invention, the upper sizing roller 52 rotates with the U-shaped frame 50, and the lower sizing roller 42 rotates with the support plate 40, thereby moving the wire rope pressed by the upper sizing roller 52 and the lower sizing roller 42. Under the continuous sizing coordination of the wire rope, the gap between the strands of the wire rope is reduced.

[0040] In this embodiment, the wire rope sizing device is used by first connecting the traction wheel 21 with the traction groove 210 to two columns 20 via a rotating shaft. Two sets of guide components 3 are then fixed to the fixed base 1, and two sets of positioning frames 4 are fixed to the right side of the corresponding traction component 2. The vertical plate 30 and support plate 40 are bolted to the fixed base 1, and four sets of trays 6 are fixed to both sides of the corresponding vertical plate 30. Then, the guide roller 31 with the wire guide groove 310 is rotatably connected to the vertical plate 30 via a rotating shaft, and the lower sizing roller 42 rotates with the support plate 40. The hydraulic cylinder 51 is fixed to the top of the top plate 41. The telescopic arm of the hydraulic cylinder 51 passes through the top plate 41 and its end is combined with the U-shaped frame 50. The upper sizing roller 52 is rotatably connected to the U-shaped frame 50. The U-shaped frame 50 is inserted into the trapezoidal groove 401 through the trapezoidal block 500. The pointer 501 extends to the outside through the through groove 402 and the tip of the pointer 501 points to the scale line 403. The top plate 41 is inserted into the slot 404 through the insert post 410. Then the positioning bolt 411 passes through the insert post 410 and is threaded into the screw hole at the bottom of the slot 404. When the wire rope sizing operation is required for production, the wire rope initially passes through the traction groove 210. Pulling the wire rope causes the traction wheel 21 to rotate, and the wire rope passes sequentially over the tray 6. Guided by the wire guide groove 310, the wire rope is positioned in the middle of the support plate 40 and enters between the lower sizing roller 42 and the upper sizing roller 52. Depending on the required thickness of different wire ropes, the extension or retraction arm of the hydraulic cylinder 51 is controlled to extend or retract. When the pointer 501 points to the precise value of the scale line 403, the sizing diameter is precisely adjusted. With the cooperation of the two sets of sizing components 5, the pressing and sizing is continuously and stably performed. After the wire rope is discharged from the rightmost sizing component 5, it is collected and coordinated to facilitate the continuous sizing operation of the next set of wire ropes.

Claims

1. A sizing device for steel wire rope production, comprising a fixed base (1), characterized in that: The upper surface of the fixed seat (1) is provided with a traction component (2) at the left end. The upper surface of the fixed seat (1) is provided with two sets of guide components (3) and positioning frames (4) from left to right. Each positioning frame (4) is provided with a sizing component (5). The traction assembly (2) includes symmetrical columns (20), and a rotating traction wheel (21) is provided between the two columns (20). A traction groove (210) is provided in the middle of the outer wall of the traction wheel (21). The guide assembly (3) includes symmetrical vertical plates (30), and a guide roller (31) is provided at the middle of the two vertical plates (30) and at the same level as the traction wheel (21). A wire groove (310) is opened in the middle of the outer wall of the guide roller (31). The positioning frame (4) includes two symmetrical support plates (40). A sliding groove (400) is provided on the top of the opposite side of the support plates (40). A trapezoidal groove (401) is provided at the bottom of the sliding groove (400). A through groove (402) communicating with the outside is provided inside the trapezoidal groove (401). A top plate (41) is provided on the top of the support plate (40). A lower sizing roller (42) is provided between the two support plates (40). A scale line (403) is provided on the outer wall of the support plate (40) near one edge. The sizing assembly (5) includes a U-shaped frame (50) and a hydraulic cylinder (51) connected to the top of the U-shaped frame (50). The hydraulic cylinder (51) is located on the upper surface of the top plate (41). A trapezoidal block (500) is provided on the outer wall of the U-shaped frame (50). A pointer (501) is provided at the bottom of the outer wall of the trapezoidal block (500). An upper sizing roller (52) is provided inside the U-shaped frame (50).

2. The sizing device for steel wire rope production according to claim 1, characterized in that: The bottom of the column (20) is welded and fixed to the fixed seat (1), the traction wheel (21) is rotatably connected to the column (20) through a rotating shaft, and the edge of the traction groove (210) is arc-shaped.

3. The sizing device for steel wire rope production according to claim 1, characterized in that: The guide component (3) is provided with a tray (6) on both sides. One end of the tray (6) is fixedly connected to the column (20) by screws, and the other end of the tray (6) is fixedly connected to the vertical plate (30) by screws. One end of the tray (6) between the support plate (40) and the vertical plate (30) is fixedly connected to the support plate (40) by screws. The tray (6) is U-shaped.

4. The sizing device for steel wire rope production according to claim 3, characterized in that: One side of the traction wheel (21) is inserted into the end of one of the trays (6) and rotates to engage with it. The lower sizing roller (42) is inserted into the end of the other tray (6) and rotates to engage with it.

5. The sizing device for steel wire rope production according to claim 1, characterized in that: The bottom of the vertical plate (30) is fixed to the top of the fixed seat (1) by bolts, the guide roller (31) is rotatably connected to the vertical plate (30) by a rotating shaft, and the cross-section of the through groove (310) is trapezoidal.

6. The sizing device for steel wire rope production according to claim 1, characterized in that: The bottom of the support plate (40) is fixedly connected to the fixing seat (1) by bolts. The width of the outer wall of the top plate (41) is adapted to the width of the support plate (40). The bottom surface of the top plate (41) is provided with inserts (410) near the four corners. The top of the inserts (410) is provided with positioning bolts (411). The top of the support plate (40) is provided with slots (404) corresponding to the inserts (410).

7. The sizing device for steel wire rope production according to claim 1, characterized in that: The hydraulic cylinder (51) is fixedly connected to the top plate (41) by bolts. The end of the telescopic arm of the hydraulic cylinder (51) is fixed to the top of the U-shaped frame (50). The width of the outer wall of the U-shaped frame (50) is adapted to the width of the inner wall of the slide groove (400). The trapezoidal block (500) and the U-shaped frame (50) are integrally formed. The width of the outer wall of the trapezoidal block (500) is adapted to the width of the inner wall of the trapezoidal groove (401). The pointer (501) and the trapezoidal block (500) are integrally formed. The bottom of the pointer (501) passes through the through groove (402), and the tip of the pointer (501) points to the scale line (403).

8. The sizing device for steel wire rope production according to claim 7, characterized in that: The upper sizing roller (52) is rotatably connected to the U-shaped frame (50) via a rotating shaft. The lower sizing roller (42) and the support plate (40) rotate via a rotating shaft. The lower sizing roller (42) and the upper sizing roller (52) are in close contact and correspond to each other, and the width of the sizing groove on the outer wall is compatible.