Axle diameter adjustable steel belt unwinding device

Abstract

This invention relates to the field of steel strip winding technology, specifically to a steel strip rewinding device with adjustable shaft diameter. It includes an adjustable support mechanism, a coil diameter control mechanism located outside the adjustable support mechanism, a strip surface cleaning mechanism located on the adjustable support mechanism, and a bandwidth adaptation mechanism located on the adjustable support mechanism but outside the coil diameter control mechanism. The coil diameter control mechanism includes a pressure plate and four load-bearing columns located inside the pressure plate. In this invention, the adjustable support mechanism serves as the winding carrier, and the coil diameter control mechanism is located outside the adjustable support mechanism. After lateral adjustment of the coil diameter control mechanism, the four sets of winding clamps, evenly distributed outside the support columns in a cross shape, can be compressed and stretched at equal intervals. The stretched four sets of winding clamps can then provide adaptive shaft diameter control for the steel strip rewinding.

Description

Technical Field

[0001] This invention relates to the field of steel strip winding technology, specifically to a steel strip rewinding device with adjustable shaft diameter. Background Technology

[0002] Steel belt is a conveyor belt made of carbon steel. As a traction and carrying component of belt conveyors, it is often used to bundle goods. It is a narrow and long steel plate produced by various steel rolling enterprises to meet the needs of different industrial sectors for the industrialized production of various metal or mechanical products.

[0003] Currently, the shaft diameter of the steel strip rewinding device is fixed, making it difficult to adaptively adjust the shaft diameter and cross-sectional width of the steel strip. Furthermore, the outer side of the conventionally wound steel strip is prone to getting stuck when it is rewinded. Once impurities are trapped by the outer side of the steel strip and enter the rewinding device, the trapped outer side will flip to face inward, causing wear to the steel strip.

[0004] In view of this, an adjustable shaft diameter steel strip rewinding device was designed to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted in this invention is as follows: An adjustable-diameter steel strip rewinding device includes an adjustable-pitch support mechanism, a disc diameter control mechanism disposed outside the adjustable-pitch support mechanism, a strip surface cleaning mechanism disposed on the adjustable-pitch support mechanism, and a bandwidth adaptation mechanism disposed on the adjustable-pitch support mechanism but outside the disc diameter control mechanism. A steel strip is wound around the bandwidth adaptation mechanism. The disc diameter control mechanism includes a pressure plate and four load-bearing columns disposed at the inner end of the pressure plate. The adjustable-pitch support mechanism includes a support column disposed in the middle of the pressure plate, with four insertion holes at the inner end of the support column. The bandwidth adaptation mechanism includes four guide pads, two guards movably mounted outside the load-bearing columns, a fixing pin inserted into the outer end of the guards, a winding clamp disposed at the outer end of the guards and outside the fixing pin, and a built-in drawer plate movably mounted inside the winding clamp. The inclined surface on the inner side of the guide pads adapts to and fits against the inclined surface on the outer side of the pressure plate. The winding clamps consist of four sets of eight clamps, with two clamps forming a set. The four sets of winding clamps are used to adjust the steel strip diameter.

[0007] In a preferred embodiment, the present invention may be further configured as follows: the bandwidth adaptation mechanism further includes a limiting rail inserted into the socket, a third locking bolt installed in the socket and penetrating into the limiting rail, a sliding washer ring movably installed outside the support column, four clamps fixed outside the sliding washer ring, a traction arm movably installed on the clamps, and a built-in support frame movably installed at the other end of the traction arm, wherein the built-in support frame is movably installed in a groove inside the limiting rail; The built-in support frame has guide rods installed at both exposed ends. Two sets of expansion brackets are movably installed on the guide rods and are stacked. A pressure-bearing bracket is installed at the end of the expansion bracket away from the guide rod. The other end of the pressure-bearing support is fixedly installed on the inner wall of the winding clamp.

[0008] In a preferred embodiment, the present invention can be further configured as follows: the surface cleaning mechanism includes an outer support plate mounted on a support column, a beam plate disposed in a transverse groove inside the outer support plate, a first positioning pin penetrating into the beam plate and inserted into the outer support plate, a slide fixed to the outside of the beam plate, a limiting clamp movably mounted inside the slide, a second positioning pin penetrating into the slide and inserted into the limiting clamp, a fixed shaft fixedly mounted at the outer end of the beam plate, a rotating roller disposed outside the fixed shaft, a movable shaft movably mounted in a groove at the outer end of the beam plate, a protective roller disposed outside the movable shaft, and a scraper fixedly mounted on the protective roller; The surface cleaning mechanism is used to remove impurities from the outer side of the steel strip before it is rewinded.

[0009] In a preferred embodiment, the present invention can be further configured such that: the outer wall of the sliding washer ring has four pre-installed grooves, and a fourth positioning plate is fixedly installed in the pre-installed grooves; The adjustable support mechanism also includes four third positioning plates fixedly installed at the inner end of the support column. The third positioning plates have evenly distributed holes inside, and second locking bolts are installed in the holes. The threaded section of the second locking bolt is adapted to pass through the screw hole inside the fourth positioning plate for adjusting the spacing after the sliding washer ring moves laterally.

[0010] In a preferred embodiment, the present invention may be further configured such that the disc diameter adjustment mechanism further includes four first positioning plates fixedly installed inside the booster disc; The adjustable support mechanism also includes four second positioning plates fixedly installed at the inner end of the support column. The second positioning plates have multiple evenly distributed screw holes inside, and first locking bolts are installed in the screw holes. The threaded section of the first locking bolt is adapted to penetrate into the interior of the first positioning plate for fixing the booster plate after lateral movement.

[0011] In a preferred embodiment, the present invention may be further configured such that the disc diameter adjustment mechanism further includes a first base and a second base disposed on the load-bearing column, a reinforcing spring disposed between the first base and the second base, and a combination bolt installed in the booster disc and the load-bearing column.

[0012] In a preferred embodiment, the present invention can be further configured such that: the booster plate has circumferentially distributed fan-shaped insertion holes inside, and the evenly distributed fan-shaped insertion holes are located around the central hole of the booster plate.

[0013] In a preferred embodiment, the present invention can be further configured such that both the protective roller and the rotating roller are of an I-shaped structure, and the ends of the protective roller are attached to the outer sides of the ends of the rotating roller to provide anti-slip protection for the passing steel strip.

[0014] In a preferred embodiment, the present invention may be further configured such that: the protective gear has an elliptical slide rail inside, and the end of the load-bearing column away from the pressure plate is adapted to penetrate into the elliptical slide rail.

[0015] In a preferred embodiment, the present invention can be further configured such that: the inside of the winding clamp is provided with an arc-shaped slot, and the L-shaped arc-shaped end faces at both ends of the built-in drawer plate are adapted to penetrate into two arc-shaped slots in two adjacent winding clamps.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. In this invention, the adjustable spacing support mechanism is used as the winding carrier, and a disc diameter adjustment mechanism is set outside the adjustable spacing support mechanism. After the disc diameter adjustment mechanism is adjusted laterally, the four sets of winding clamps that are evenly distributed outside the support column and arranged in a cross shape can be pressed and stretched at equal intervals. After stretching, the four sets of winding clamps can provide adaptive shaft diameter adjustment for the rewinding of the steel strip.

[0017] 2. The present invention sets a pressure-bearing bracket between each set of winding clamps, and uses the control of the lateral movement of the sliding pad ring to push the traction arm and the built-in support. Finally, after the built-in support extends, it will push the expansion bracket to expand outward. At this time, two adjacent winding clamps can be adapted to steel strips with different cross-sectional widths.

[0018] 3. The present invention provides a surface cleaning mechanism on the outside of the support column. By finely adjusting the gap between the scraper and the rotating roller in the surface cleaning mechanism, the gap between the scraper and the rotating roller can be adapted to steel strips of different thicknesses. As the outer side of the steel strip passes the scraper, the impurities trapped on the outer side of the steel strip can be quickly removed. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2This is a schematic diagram illustrating the use of the present invention; Figure 3 This is a partial schematic diagram of the present invention; Figure 4 This is a schematic diagram of the bandwidth adaptation mechanism of the present invention; Figure 5 This is an exploded view of the bandwidth adaptation mechanism of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the surface cleaning mechanism of the present invention; Figure 8 For the present invention Figure 7 A partial diagram of the explosion; Figure 9 This is a schematic diagram of the disc diameter adjustment mechanism of the present invention; Figure 10 This is a schematic diagram of the adjustable support mechanism of the present invention.

[0020] Figure label: 100. Disc diameter adjustment mechanism; 110. Pressure boosting disc; 120. Combination bolt; 130. Load-bearing column; 140. First base; 150. Second base; 160. Reinforcing spring; 170. First positioning plate; 200. Adjustable distance support mechanism; 210. Support column; 220. Insertion hole; 230. Second positioning plate; 240. First locking bolt; 250. Second locking bolt; 260. Third positioning plate; 300. Surface cleaning mechanism; 310. Outer support plate; 320. Beam plate; 330. First positioning pin; 340. Slide seat; 350. Second positioning pin; 360. Limiting clamp; 370. Moving shaft; 3701. Protective roller; 3702. Scraper; 380. Fixed shaft; 3801. Rotating roller; 400. Bandwidth adapter mechanism; 410. Sliding washer ring; 4101. Chuck; 4102. Pre-installation slot; 4103. Fourth positioning plate; 420. Traction arm; 430. Built-in support frame; 4301. Guide rod; 4302. Expansion bracket; 4303. Pressure bearing bracket; 440. Limiting rail; 450. Third locking bolt; 460. Rewinding clamp; 4601. Fixing pin; 4602. Protective gear; 4603. Built-in drawer plate; 4604. Guide pad; 500. Steel strip. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0022] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0023] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a shaft diameter adjustable steel strip rewinding device. Example 1

[0024] Combination Figures 1 to 10 As shown, the present invention provides a steel strip rewinding device with adjustable shaft diameter, including a spacing adjustment support mechanism 200, a disc diameter adjustment mechanism 100 disposed outside the spacing adjustment support mechanism 200, a strip surface cleaning mechanism 300 disposed on the spacing adjustment support mechanism 200, and a bandwidth adaptation mechanism 400 disposed on the spacing adjustment support mechanism 200 and located outside the disc diameter adjustment mechanism 100. A steel strip 500 is wound on the bandwidth adaptation mechanism 400. The disc diameter adjustment mechanism 100 moves laterally along the spacing adjustment support mechanism 200 to adjust the shaft diameter and cross-sectional width of the bandwidth adaptation mechanism 400. The strip surface cleaning mechanism 300 is used to remove impurities from the outer side of the steel strip 500 before rewinding. After the bandwidth adaptation mechanism 400 adjusts the shaft diameter and cross-sectional width, it rewinds the steel strip 500.

[0025] The disc diameter adjustment mechanism 100 includes a booster disc 110 and four load-bearing columns 130 disposed at the inner end of the booster disc 110; The adjustable support mechanism 200 includes a support column 210 disposed in the middle of the booster plate 110, and the inner end of the support column 210 is provided with four insertion holes 220. The bandwidth adaptation mechanism 400 includes four guide pads 4604, two guards 4602 movably mounted on the outside of the load-bearing column 130, a fixing pin 4601 inserted into the outer end of the guard 4602, a winding clamp 460 located at the outer end of the guard 4602 and outside the fixing pin 4601, and an internal drawer plate 4603 movably mounted in the winding clamp 460. The inclined surface on the inner side of the guide pads 4604 is adapted to fit against the inclined surface on the outer side of the booster plate 110 and is inserted into the socket 2. The limiting rail 440 inside the 20, the third locking bolt 450 installed in the insertion hole 220 and extending through the limiting rail 440, the sliding washer ring 410 movably installed outside the support column 210, the four clamps 4101 fixed outside the sliding washer ring 410, the traction arm 420 movably installed on the clamps 4101, and the built-in support 430 movably installed at the other end of the traction arm 420, and the built-in support 430 movably installed in the groove inside the limiting rail 440; The built-in support 430 has guide rods 4301 installed at both exposed ends. Two sets of expansion brackets 4302 are movably installed on the guide rods 4301 and are stacked. A pressure-bearing bracket 4303 is installed at the end of the expansion bracket 4302 away from the guide rods 4301. The other end of the pressure-bearing support 4303 is fixedly installed on the inner wall of the winding clamp 460; There are four sets of eight winding clamps 460, with two forming a set. The four sets of winding clamps 460 are used to adapt and adjust the 500mm diameter of the steel strip. The inside of the winding clamp 460 is provided with an arc-shaped slot, and the L-shaped arc end faces at both ends of the inner drawer plate 4603 are adapted to pass through the two arc-shaped slots in the two adjacent winding clamps 460.

[0026] When the steel strip 500 rewinding equipment needs to adjust the shaft diameter, pressure is applied to the sliding pad ring 410. At this time, the pressed sliding pad ring 410 will move relative to the support column 210. The moved sliding pad ring 410 and its external clamp 4101 will push the traction arm 420. After the traction arm 420 is pressed and stretched outward, it will push the built-in support frame 430 and the guide rod 4301. The two sets of expansion brackets 4302 in the stacked state will expand at equal angles. Finally, after the two sets of expansion brackets 4302 expand at equal angles, they will push the two adjacent winding clamps 460 to move along the outside of the built-in drawer plate 4603. Until the two adjacent winding clamps 460 are stretched out to adapt to the steel strips 500 with different cross-sectional widths, at the same time, as the pressure plate 110 moves along the support column 210, the four guide pads 4604 that are pressed by the outer inclined surface of the pressure plate 110 will be pressed and the wheelbase will be adjusted. Finally, the bandwidth adaptation mechanism 400 after the shaft diameter and cross-sectional width are adjusted can rewind the steel strip 500. Example 2

[0027] Combination Figure 4 , Figure 9 as well as Figure 10 As shown, based on Embodiment 1, the disc diameter adjustment mechanism 100 further includes four first positioning plates 170 fixedly installed inside the booster disc 110, a first base 140 and a second base 150 set on the load-bearing column 130, a reinforcing spring 160 set between the first base 140 and the second base 150, and a combination bolt 120 installed in the booster disc 110 and the load-bearing column 130; The adjustable support mechanism 200 also includes four second positioning plates 230 fixedly installed at the inner end of the support column 210. The second positioning plates 230 have multiple evenly distributed screw holes inside, and first locking bolts 240 are provided in the screw holes. The threaded section of the first locking bolt 240 is adapted to penetrate into the interior of the first positioning plate 170 for fixing the booster plate 110 after transverse movement. The booster plate 110 has circumferentially distributed fan-shaped insertion holes inside, and the evenly distributed fan-shaped insertion holes are located on the periphery of the central hole of the booster plate 110. The protective gear 4602 has an elliptical slide inside, and the end of the load-bearing column 130 away from the pressure plate 110 is adapted to pass through the elliptical slide.

[0028] Preferably, the four first positioning plates 170 are welded to the inner end of the pressure plate 110. When the four first locking bolts 240 are loosened and removed, the moved pressure plate 110 can help the four first positioning plates 170 slide along the outside of the four second positioning plates 230 until the holes inside the first positioning plates 170 move to a selected screw hole inside the second positioning plates 230. Then the first locking bolts 240 can be assembled along the screw hole. At this time, the moved pressure plate 110 can provide sufficiently stable external tension support for the four sets of winding clamps 460. When the shaft diameter of the four sets of winding clamps 460 needs to be restored, the four first locking bolts 240 are removed, and the load-bearing columns 130 and the pressure plate 110, which are reinforced by four springs 160 applying reverse pressure, will quickly reset. Example 3

[0029] Combination Figure 7 and Figure 8 As shown, based on Embodiment 1, the surface cleaning mechanism 300 includes an outer support plate 310 mounted on a support column 210, a beam plate 320 disposed in a transverse groove inside the outer support plate 310, a first positioning pin 330 penetrating into the beam plate 320 and inserted into the outer support plate 310, a slide 340 fixed to the outside of the beam plate 320, a limiting clamp 360 movably mounted inside the slide 340, a second positioning pin 350 penetrating into the slide 340 and inserted into the limiting clamp 360, a fixed shaft 380 fixedly mounted on the outer end of the beam plate 320, a rotating roller 3801 disposed outside the fixed shaft 380, a movable shaft 370 movably mounted in a groove at the outer end of the beam plate 320, a protective roller 3701 disposed outside the movable shaft 370, and a scraper 3702 fixedly mounted on the protective roller 3701. Both the protective roller 3701 and the rotating roller 3801 are of an I-shaped structure, and the ends of the protective roller 3701 are attached to the outer sides of the ends of the rotating roller 3801 to provide anti-slip protection for the passing steel strip 500.

[0030] Preferably, the outer support plate 310 has evenly distributed recessed holes that fit the first positioning pin 330. When the shaft diameters of the four sets of winding clamps 460 are adjusted, the first positioning pin 330 is adjusted to fix a selected recessed hole inside the outer support plate 310. At this time, the fixed and elongated beam plate 320 can deliver the moving shaft 370 and the fixed shaft 380 outward. The protective roller 3701 and the rotating roller 3801 supported by the moving shaft 370 and the fixed shaft 380 can remove impurities from the passing steel strip 500. Example 4

[0031] Combination Figures 2 to 10 As shown, in the above embodiment, the outer wall of the sliding pad ring 410 is provided with four pre-installed grooves 4102, and a fourth positioning plate 4103 is fixedly installed in the pre-installed grooves 4102. The adjustable support mechanism 200 also includes four third positioning plates 260 fixedly installed at the inner end of the support column 210. The third positioning plates 260 have evenly distributed holes inside, and second locking bolts 250 are installed in the holes. The threaded section of the second locking bolt 250 is adapted to pass through the screw hole inside the fourth positioning plate 4103 for adjusting the spacing after the sliding washer ring 410 moves laterally.

[0032] When the sliding washer ring 410 moves laterally along the support column 210 and the cross-sectional width of the two adjacent winding clamps 460 is adjusted, the steel strip 500 that is rolled up on the two adjacent winding clamps 460 can be further adapted and constrained until the steel strips 500 of different widths are perfectly rolled up and supported by the four sets of winding clamps 460. The cross-sectional width of the two adjacent winding clamps 460 can be finely adjusted by the second locking bolt 250.

[0033] Working principle and usage process of this invention: The support column 210 is fixed to the drive shaft of the external drive device in advance, so that the device is in a suspended state; Next, unscrew the four first locking bolts 240, and then apply pressure to the end of the support column 210 away from the outer support plate 310 until the support column 210 extends along the hole in the middle of the pressure plate 110. At this time, the inclined surface on the outer side of the pressure plate 110 will apply a lateral compressive force to the four guide pads 4604. Finally, the four guide pads 4604, which are distributed in a cross shape, are compressed and expand outward synchronously. At this time, the four evenly distributed sets of built-in drawer plates 4603 can adjust the shaft diameter of the steel strip 500 winding. When the shaft diameter of the four evenly distributed sets of built-in drawer plates 4603 is effectively adjusted, the four first locking bolts 240 can be re-inserted into the interior of the four first positioning plates 170 until the threaded sections of the four first locking bolts 240 are re-tightened in the selected screw holes of the four second positioning plates 230. Then, the external drive device can drive the support column 210, and the entire belt adapter mechanism 400 can rewind the steel strip 500. When the cross-sectional width of the rewinding steel strip 500 differs from the initial width of the two adjacent built-in drawer plates 4603 within the device, the four second locking bolts 250 are unscrewed. Then, a pushing force is applied to the sliding washer ring 410 in the direction of the outward-expanding support plate 310. As the sliding washer ring 410, in conjunction with the four fourth positioning plates 4103, moves laterally along the support column 210, the traction arm 420, pressured by the clamp 4101, pulls the built-in support frame 430 inward. This results in the two sets of expansion brackets 43, which are pressured by the built-in support frame 430 and are in a stacked state. 02 will apply an outward expansion force to the two sets of pressure-bearing supports 4303. Finally, after the two winding clamps 460 are pressed, they expand outward at equal intervals along both ends of the built-in drawer plate 4603. At this time, the two adjacent winding clamps 460 can rewind the steel strips 500 of different widths. After the cross-sectional width of the four sets of winding clamps 460 is adjusted, the four second locking bolts 250 can be re-penetrated into the four third positioning plates 260 until the threaded section of the second locking bolt 250 is fixed in the screw hole inside the fourth positioning plate 4103. Once the cross-sectional width of the steel strip 500 and the shaft diameter of the steel strip 500 are adjusted, one end of the steel strip 500 can be passed through the gap between the rotating roller 3801 and the protective roller 3701. At this time, the scraper 3702 fixed on the protective roller 3701 facing the rotating roller 3801 can apply pressure to scrape the exposed side of the steel strip 500 before rewinding, thereby preventing the dirt on the exposed surface of the steel strip 500 before rewinding from causing wear on the other side after rewinding.

[0034] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A steel strip rewinding device with adjustable shaft diameter, comprising an adjustable spacing support mechanism (200), characterized in that, It also includes a disc diameter control mechanism (100) disposed outside the pitch support mechanism (200), a belt cleaning mechanism (300) disposed on the pitch support mechanism (200), and a bandwidth adaptation mechanism (400) disposed on the pitch support mechanism (200) and located outside the disc diameter control mechanism (100). The disc diameter adjustment mechanism (100) includes a booster disc (110) and four load-bearing columns (130) disposed at the inner end of the booster disc (110). The bandwidth adaptation mechanism (400) includes four guide pads (4604), two guards (4602) movably installed outside the load-bearing column (130), a fixing pin (4601) inserted into the outer end of the guard (4602), a winding clamp (460) located at the outer end of the guard (4602) and outside the fixing pin (4601), and an internal drawer plate (4603) movably installed in the winding clamp (460). The inclined surface on the inner side of the guide pads (4604) is adapted to fit against the inclined surface on the outer side of the pressure plate (110). The winding clamps (460) consist of four sets of eight in total, with two forming a set. The four sets of winding clamps (460) are used to adapt and adjust the shaft diameter of the steel strip (500). The adjustable support mechanism (200) includes a support column (210) disposed in the middle of the booster plate (110), and four insertion holes (220) are provided at the inner end of the support column (210). The bandwidth adaptation mechanism (400) further includes a limiting rail (440) inserted into the socket (220), a third locking bolt (450) installed in the socket (220) and extending through the limiting rail (440), a sliding washer ring (410) movably installed outside the support column (210), four clamps (4101) fixed outside the sliding washer ring (4101), a traction arm (420) movably installed on the clamps (4101), and a built-in support frame (430) movably installed at the other end of the traction arm (420), and the built-in support frame (430) is movably installed in a groove inside the limiting rail (440); The built-in support (430) has guide rods (4301) installed at both exposed ends. Two sets of expansion brackets (4302) are movably installed on the guide rods (4301) and are stacked. A pressure-bearing bracket (4303) is installed at the end of the expansion bracket (4302) away from the guide rods (4301). The other end of the pressure-bearing bracket (4303) is fixedly installed on the inner wall of the winding clamp (460); The disc diameter adjustment mechanism (100) also includes a first base (140) and a second base (150) disposed on the load-bearing column (130), and a reinforcing spring (160) disposed between the first base (140) and the second base (150). The protective gear (4602) has an elliptical slide inside, and the end of the load-bearing column (130) away from the pressure plate (110) is adapted to pass through the elliptical slide.

2. The adjustable shaft diameter steel strip rewinding device according to claim 1, characterized in that, The surface cleaning mechanism (300) includes an outer support plate (310) mounted on a support column (210), a beam plate (320) disposed in a transverse groove inside the outer support plate (310), a first positioning pin (330) penetrating into the beam plate (320) and inserted into the outer support plate (310), a slide (340) fixed to the outside of the beam plate (320), and a limiting clamp (360) movably mounted inside the slide (340). The second positioning pin (350) is inserted into the limiting clamp (360) inside the beam plate (320), the fixed shaft (380) is fixedly installed on the outer end of the beam plate (320), the rotating roller (3801) is set outside the fixed shaft (380), the movable shaft (370) is movably installed in the groove at the outer end of the beam plate (320), the protective roller (3701) is set outside the movable shaft (370), and the scraper (3702) is fixedly installed on the protective roller (3701). The surface cleaning mechanism (300) is used to remove impurities from the outer side of the steel strip (500) before it is unrolled.

3. The adjustable shaft diameter steel strip rewinding device according to claim 1, characterized in that, The outer wall of the sliding pad ring (410) is provided with four pre-installed grooves (4102), and a fourth positioning plate (4103) is fixedly installed in the pre-installed grooves (4102). The adjustable support mechanism (200) also includes four third positioning plates (260) fixedly installed at the inner end of the support column (210). The third positioning plates (260) have evenly distributed holes inside, and second locking bolts (250) are provided in the holes. The threaded section of the second locking bolts (250) is adapted to pass through the screw hole inside the fourth positioning plate (4103) for adjusting the spacing after the sliding washer ring (410) moves laterally.

4. The adjustable shaft diameter steel strip rewinding device according to claim 1, characterized in that, The disc diameter adjustment mechanism (100) also includes four first positioning plates (170) fixedly installed inside the booster disc (110). The adjustable support mechanism (200) also includes four second positioning plates (230) fixedly installed on the inner end of the support column (210). The second positioning plates (230) have multiple evenly distributed screw holes inside, and a first locking bolt (240) is provided in the screw hole. The threaded section of the first locking bolt (240) is adapted to penetrate into the interior of the first positioning plate (170) for fixing the booster plate (110) after lateral movement.

5. The adjustable shaft diameter steel strip rewinding device according to claim 1, characterized in that, The disc diameter adjustment mechanism (100) also includes a combination bolt (120) installed in the booster disc (110) and the load-bearing column (130). The booster plate (110) has circumferentially distributed fan-shaped insertion holes inside, and the evenly distributed fan-shaped insertion holes are located on the periphery of the central hole of the booster plate (110).

6. The adjustable shaft diameter steel strip rewinding device according to claim 2, characterized in that, The protective roller (3701) and the rotating roller (3801) are both in the shape of an I-beam, and the ends of the protective roller (3701) are attached to the outer sides of the ends of the rotating roller (3801) to provide anti-slip protection for the passing steel strip (500).

7. The adjustable shaft diameter steel strip rewinding device according to claim 1, characterized in that, The inside of the winding clamp (460) is provided with an arc-shaped slot, and the L-shaped arc end faces at both ends of the built-in drawer plate (4603) are adapted to pass through the two arc-shaped slots in the two adjacent winding clamps (460).

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