Tire bead wire surface coating device and method

Abstract

The invention relates to the technical field of surface coatings, and particularly discloses a bead wire surface coating coating device and method.The bead wire surface coating coating device comprises a base and a vertical frame, the vertical frame is arranged on one side of the top end of the base, and universal wheels are fixedly arranged at the four corners of the bottom end of the vertical frame; the steel wire conveying and winding mechanism is arranged on the inner side of the vertical frame; the bottom box is fixedly arranged on the other side of the top end of the base; the cylinder body is fixedly arranged at the top end of the bottom box; the steel wire surface treatment mechanism is arranged in an inner cavity of the bottom box; the spraying and coating mechanism is arranged in an inner cavity of the barrel. By arranging the steel wire surface treatment mechanism, rapid oil stain cleaning, oxidation treatment and clean water cleaning can be conducted on the surface of a steel wire, the cleaned steel wire can be rapidly wiped and dried, and absorbent cotton is moved to make contact with the steel wire, so that saturation of the absorbent cotton is avoided, the service life is prolonged, and the steel wire surface treatment production line is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of surface coatings, and in particular to a device and method for coating a bead wire surface coating. Background Art

[0002] Bead wire is an important material used in manufacturing tires. It is mainly used for the bead part of the tire. The bead is the part of the tire that contacts the rim. Its main function is to fix the tire on the rim to ensure the stability and safety of the tire when rotating at high speed. The bead wire is usually made of high-carbon steel, has high strength and elasticity, and can withstand the huge tension and pressure generated by the tire during driving. The bead wire undergoes special processing techniques, such as cold drawing, heat treatment, etc., to achieve the required physical properties; the surface coating of the bead wire is to improve its corrosion resistance, lubricity and adhesion to rubber. The existing bead wire needs to be surface treated before coating, and the coating is applied in the spraying area, but the current work line is long, which requires a large amount of production space, and the production cost is high, and it is not easy to maintain later. In addition, the steel wire cannot be smoothly transmitted due to the change of the release and winding position of the steel wire during the transmission process, thereby reducing the treatment of the steel wire surface and the quality and efficiency of coating. Summary of the invention

[0003] The object of the present invention is to provide a device and method for coating the surface of a tire bead wire to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tire bead wire surface coating device, comprising: a base, a vertical frame, a wire conveying and winding mechanism, a bottom box, a cylinder, a wire surface treatment mechanism and a spray coating mechanism; the vertical frame is arranged on one side of the top end of the base, and universal wheels are fixedly arranged at the four corners of the bottom end of the vertical frame; the wire conveying and winding mechanism is arranged on the inner side of the vertical frame; the bottom box is fixedly arranged on the other side of the top end of the base; the cylinder is fixedly arranged on the top end of the bottom box; the wire surface treatment mechanism is arranged in the inner cavity of the bottom box; the spray coating mechanism is arranged in the inner cavity of the cylinder.

[0005] Preferably, the wire conveying and winding mechanism includes: a rotating shaft, a rotating shaft is rotatably arranged at the upper and lower ends of the inner side of the vertical frame through bearings; a wire ring roller key is connected to the rear side of the outer wall of the rotating shaft; a strip shell is fixedly arranged on the front side of the vertical frame along the up and down directions; a servo motor is fixedly arranged at the front bottom end of the strip shell, one end of the rotating shaft extends into the strip shell, and the output end of the servo motor is locked with one end of one of the rotating shafts through a coupling; a toothed pulley key is connected to the outer wall of the rotating shaft, and the toothed pulley is located in the strip shell; a toothed belt is meshed with the two toothed pulleys.

[0006] Preferably, the wire conveying and winding mechanism also includes: a push plate, which is arranged on the rear side of the wire ring roller along the up and down directions, the rear side of the wire ring roller and the front side of the push plate are rotatably connected through a bearing, and the push plate is socketed with the rotating shaft; a hydraulic cylinder is fixedly arranged on the rear side of the vertical frame, one end of the hydraulic cylinder extends into the inner side of the vertical frame and is fixedly connected to the rear side of the push plate.

[0007] Preferably, the outer wall of the wire ring roller on the lower side is wrapped with steel wire, and the steel wire passes through the top of the outer wall of the wire ring roller, penetrates the bottom box and the cylinder in sequence, and is wrapped around the outer wall of the wire ring roller on the upper side through the bottom end of the outer wall of the wire ring roller.

[0008] Preferably, the steel wire surface treatment mechanism includes: a partition, which is fixedly provided on both the left and right sides of the inner cavity of the bottom box; a first guide roller is fixedly provided on one side of the top of the bottom box and on the top of the partition; a second guide roller is rotated in sequence from left to right in the inner cavity of the bottom box, and a plurality of through holes are provided on the outer side of the second guide roller; a connecting frame is fixedly provided on the top of one side of the inner cavity of the bottom box; a fixed frame is fixedly provided on one side of the connecting frame; slide grooves are provided on both the left and right sides of the inner cavity of the fixed frame along the front-back direction, and a slider is inserted into the inner cavity of the slide groove; a connecting plate is fixedly provided on the inner side of the slider; absorbent cotton is fixedly provided on the inner side of the connecting plate; wherein the absorbent cotton on both sides clamps the steel wire in the middle.

[0009] Preferably, the steel wire surface treatment mechanism also includes: a cover body, which is fixedly arranged on one side of the fixed frame, and the slide groove on one side is communicated with the inner cavity of the cover body; the slider on one side extends into the inner cavity of the cover body and is fixedly provided with a strip column arranged along the up and down directions, and a strip groove is opened on one side of the strip column; a reduction motor is fixedly arranged on one side of the cover body; the output end of the reduction motor extends into the inner cavity of the cover body and is fixedly provided with a turning handle; a push block is fixedly arranged on one side of the turning handle, and the push block is adapted to be plugged into one side of the inner cavity of the strip groove.

[0010] Preferably, the steel wire surface treatment mechanism also includes: a guide rod, which is inserted into one side of the connecting plate; arc-shaped rods are fixedly provided on the front and rear sides of the guide rod, and the two ends of the arc-shaped rod are respectively fixedly connected to the guide rods on the left and right sides, and the outer wall of the arc-shaped rod extends out of the outside of the fixed frame; the arc-shaped rod and part of the outer wall of the guide rod are sleeved with sliding beads, and the connecting plate is in contact with the sliding beads on one side.

[0011] Preferably, the sliding beads are distributed on the outer walls of the arc-shaped rod and the guide rod, and the connecting plate can push the sliding beads to slide.

[0012] Preferably, the spray coating mechanism includes: a third guide roller, which is fixedly arranged on one side of the bottom end of the inner cavity of the cylinder, and the steel wire passes through the second guide roller vertically around the outer wall of the third guide roller; a spray gun is fixedly arranged on both the front and rear sides of one end of the inner cavity of the cylinder; a spray pipe is fixedly arranged at one end of the spray gun, and the spray pipe extends out of the outside of the cylinder; a sprayer is fixedly arranged on the rear side of the bottom box, and the spray pipe is screwed to the spray port of the sprayer; a drying hood is fixedly arranged on one side of the top end of the cylinder, and the drying hood is communicated with the inner cavity of the cylinder; a drying fan is fixedly arranged on the top end of the cylinder, and the air outlet of the drying fan is interference fit with the drying hood; a baffle is fixedly arranged on one side of the inner cavity of the cylinder, and the baffle is sleeved with the steel wire.

[0013] The present invention provides a device and method for coating the surface of a bead wire, which has the following beneficial effects: 1. The present invention is equipped with a wire conveying and winding mechanism, which can simultaneously control the rotation of the wire ring rollers on the upper and lower sides. By winding the wire in different directions, the two wire ring rollers can release and reel the wire respectively. The push plate is controlled to drive the wire ring rollers to move, so that the wire can be released and reeled at the same position, so that the wire can stably pass through the bottom box and the cylinder to ensure smooth transmission, and the two wire ring rollers are convenient for maintenance on one side.

[0014] 2. The present invention is equipped with a steel wire surface treatment mechanism, which can quickly clean the steel wire surface from oil, oxidation and water, and can quickly wipe and dry the cleaned steel wire. The absorbent cotton is moved to contact the steel wire to avoid saturation of the absorbent cotton, thereby extending the service life and shortening the production line for steel wire surface treatment. The coating and drying are performed in the cylinder to fully save production space, and the steel wire coating is avoided from contacting objects during the drying and transfer process, so that the coating is evenly and firmly attached to the steel wire surface, thereby improving the coating quality and high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention.

[0016] Figure 2 For the present invention Figure 1 Enlarged view of point A in .

[0017] Figure 3 It is a right side sectional view of the stand of the present invention.

[0018] Figure 4 It is a front cross-sectional view of the present invention.

[0019] Figure 5 It is a schematic structural diagram of the second guide roller of the present invention.

[0020] Figure 6 It is a top cross-sectional view of the fixing frame of the present invention.

[0021] Figure 7 It is a structural schematic diagram of the guide rod of the present invention.

[0022] Figure 8 It is a schematic diagram of the assembly structure of the turning handle and the bar column of the present invention.

[0023] In the figure: 1, base; 2, stand; 3, universal wheel; 4, wire conveying and winding mechanism; 41, rotating shaft; 42, wire ring roller; 43, strip shell; 44, servo motor; 45, toothed pulley; 46, toothed belt; 47, push plate; 48, hydraulic cylinder; 5, bottom box; 6, cylinder; 7, wire surface treatment mechanism; 71, partition; 72, first guide roller; 73, second guide roller; 74, connecting frame; 75, fixed frame; 76, Slider; 77, slide groove; 78, connecting plate; 79, absorbent cotton; 710, cover body; 711, strip column; 712, strip groove; 713, reduction motor; 714, turning handle; 715, push block; 716, guide rod; 717, arc rod; 718, sliding bead; 8, spray coating mechanism; 81, third guide roller; 82, spray gun; 83, spray pipe; 84, spray machine; 85, drying hood; 86, drying fan; 87, baffle. DETAILED DESCRIPTION

[0024] 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 creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 8 The present invention provides a technical solution: a bead wire surface coating device, comprising: a base 1, a stand 2, a universal wheel 3, a wire conveying and winding mechanism 4, a bottom box 5, a cylinder 6, a wire surface treatment mechanism 7 and a spray coating mechanism 8; the stand 2 is arranged on one side of the top of the base 1, and the four corners of the bottom end of the stand 2 are fixedly provided with universal wheels 3, the wire conveying and winding mechanism 4 is arranged on the inner side of the stand 2, the bottom box 5 is fixedly arranged on the other side of the top of the base 1, the cylinder 6 is fixedly arranged on the top of the bottom box 5, the wire surface treatment mechanism 7 is arranged in the inner cavity of the bottom box 5, and the spray coating mechanism 8 is arranged in the inner cavity of the cylinder 6.

[0026] As a preferred solution, further, the wire conveying and winding mechanism 4 includes: a rotating shaft 41, a wire ring roller 42, a strip shell 43, a servo motor 44, a toothed pulley 45, a toothed belt 46, a push plate 47 and a hydraulic cylinder 48.

[0027] A rotating shaft 41 is rotatably provided at both upper and lower ends of the inner side of the stand 2 through bearings, a wire ring roller 42 is keyed to the rear side of the outer wall of the rotating shaft 41, a strip shell 43 is fixedly provided on the front side of the stand 2 along the up and down directions, a servo motor 44 is fixedly provided on the front bottom end of the strip shell 43, one end of the rotating shaft 41 extends into the strip shell 43, and the output end of the servo motor 44 is locked with one end of one of the rotating shafts 41 through a coupling, a toothed pulley 45 is keyed to the outer wall of the rotating shaft 41, and the toothed pulley 45 is located in the strip shell 43, and a toothed belt 46 is meshed with the two toothed pulleys 45.

[0028] The push plate 47 is arranged on the rear side of the wire ring roller 42 along the up and down direction. The rear side of the wire ring roller 42 is rotatably connected to the front side of the push plate 47 through a bearing, and the push plate 47 is sleeved with the rotating shaft 41. The hydraulic cylinder 48 is fixedly arranged on the rear side of the vertical frame 2. One end of the hydraulic cylinder 48 extends into the inner side of the vertical frame 2 and is fixedly connected to the rear side of the push plate 47.

[0029] As a preferred solution, further, the outer wall of the lower wire ring roller 42 is wrapped with steel wire, and the steel wire passes through the top of the outer wall of the wire ring roller 42 and passes through the bottom end of the outer wall of the wire ring roller 42 to pass through the bottom box 5 and the cylinder 6 in sequence, and is wrapped around the outer wall of the upper wire ring roller 42 through the bottom end of the outer wall of the wire ring roller 42.

[0030] As a preferred solution, further, the steel wire surface treatment mechanism 7 includes: a partition 71, a first guide roller 72, a second guide roller 73, a connecting frame 74, a fixed frame 75, a slider 76, a slide groove 77, a connecting plate 78, absorbent cotton 79, a cover body 710, a strip column 711, a strip groove 712, a reduction motor 713, a turning handle 714, a push block 715, a guide rod 716, an arc rod 717 and a sliding bead 718.

[0031] In order to effectively clean the surface of the steel wire, partitions 71 are fixedly provided on both sides of the inner cavity of the bottom box 5, first guide rollers 72 are fixedly provided on one side of the top of the bottom box 5 and on the top of the partition 71, and second guide rollers 73 are rotated in sequence from left to right in the inner cavity of the bottom box 5. A plurality of through holes are provided on the outer side of the second guide roller 73, and the through holes enable the solvent to flow through the outer side to flush the surface of the steel wire, so as to improve the cleaning effect on the surface of the steel wire.

[0032] In order to quickly dry the cleaned steel wire, the connecting frame 74 is fixedly set on the top of one side of the inner cavity of the bottom box 5, the fixed frame 75 is fixedly set on one side of the connecting frame 74, and the inner cavity of the fixed frame 75 has sliding grooves 77 on both sides along the front-to-back direction, and the inner cavity of the sliding groove 77 is inserted with a slider 76, the connecting plate 78 is fixedly set on the inner side of the slider 76, and the absorbent cotton 79 is fixedly set on the inner side of the connecting plate 78, wherein the absorbent cotton 79 on both sides clamps the steel wire in the middle.

[0033] In order to drive the absorbent cotton 79 to move and contact the surface of the steel wire, the cover body 710 is fixedly set on one side of the fixed frame 75, and one side of the slide groove 77 is communicated with the inner cavity of the cover body 710, and one side of the slider 76 extends into the inner cavity of the cover body 710 and is fixedly provided with a strip column 711 arranged along the up and down directions, and a strip groove 712 is opened on one side of the strip column 711.

[0034] In order to drive the slider 76 to move back and forth, the reduction motor 713 is fixedly arranged on one side of the cover body 710, the output end of the reduction motor 713 extends into the inner cavity of the cover body 710 and is fixedly provided with a rotating handle 714, the push block 715 is fixedly arranged on one side of the rotating handle 714, and the push block 715 is adapted to be plugged into one side of the inner cavity of the strip groove 712.

[0035] In order to drive the absorbent cotton 79 on the other side to move alternately in the opposite direction to wipe the surface of the steel wire, a guide rod 716 is inserted on one side of the connecting plate 78, and arc rods 717 are fixedly provided on the front and rear sides of the guide rod 716. The two ends of the arc rod 717 are respectively fixedly connected to the left and right guide rods 716, and the outer wall of the arc rod 717 extends out of the outside of the fixed frame 75. The arc rod 717 and part of the outer wall of the guide rod 716 are sleeved with sliding beads 718, and the connecting plate 78 is in contact with the sliding beads 718 on one side. Through the movement of the sliding beads 718, one side of the connecting plate 78 pushes the other side of the connecting plate 78 to move in the opposite direction.

[0036] As a preferred solution, further, the sliding beads 718 are distributed on the outer walls of the arc rod 717 and the guide rod 716, and the connecting plate 78 can push the sliding beads 718 to slide, so that the connecting plate 78 on one side pushes the connecting plate 78 on the other side to move in the opposite direction.

[0037] As a preferred solution, further, the spray coating mechanism 8 includes: a third guide roller 81 , a spray gun 82 , a spray pipe 83 , a sprayer 84 , a drying hood 85 , a drying fan 86 and a baffle 87 .

[0038] In order to be able to coat and dry the steel wire in the cylinder 6, the third guide roller 81 is fixedly arranged on one side of the bottom end of the inner cavity of the cylinder 6, and the steel wire vertically passes around the outer wall of the third guide roller 81 through the second guide roller 73, and a spray gun 82 is fixedly arranged on both the front and rear sides of one end of the inner cavity of the cylinder 6, and a spray pipe 83 is fixedly arranged at one end of the spray gun 82, and the spray pipe 83 extends out of the outside of the cylinder 6, and the sprayer 84 is fixedly arranged on the rear side of the bottom box 5, and the spray pipe 83 is screwed to the spray port of the sprayer 84.

[0039] In order to improve the adhesion strength of the coating, the drying hood 85 is fixedly arranged on one side of the top end of the cylinder 6, and the drying hood 85 is communicated with the inner cavity of the cylinder 6, the drying fan 86 is fixedly arranged on the top end of the cylinder 6, and the air outlet of the drying fan 86 is interference fit with the drying hood 85, the baffle 87 is fixedly arranged on one side of the inner cavity of the cylinder 6, and the baffle 87 is socketed with the steel wire. The baffle 87 is provided to prevent the drying wind from blowing to the side of the spray gun 82 to affect the coating.

[0040] A method for using a bead wire surface coating coating device comprises the following steps: Step 1: Start the servo motor 44. The servo motor 44 can drive the lower rotating shaft 41 to rotate clockwise around its own axis to drive the wire ring roller 42 on one side to rotate. The upper rotating shaft 41 can be driven by the toothed pulley 45 and the toothed belt 46 to rotate so that the wire ring rollers 42 on the upper and lower sides rotate synchronously. Through the winding direction of the wire ring roller 42, the lower wire ring roller 42 releases the steel wire and the upper wire ring roller 42 is wound to ensure the transmission coating of the steel wire. Step 2: Start the hydraulic cylinder 48 to push the push plate 47 to continuously move to one side, so that the push plate 47 can push the bead ring roller 42 in a rotating state to move to one side. By continuously pushing the bead ring roller 42, the steel wire on the bead ring roller 42 can always maintain a position for transmission and winding, so that the steel wire coating is more stable; Step 3: During the transmission process, the steel wire can bypass the first guide roller 72 and the second guide roller 73 respectively, so that the steel wire is transmitted in different inner chambers of the bottom box 5. The inner chamber of the bottom box 5 is sequentially filled with oil cleaning agent, pickling agent and clean water. When the steel wire passes through the second guide roller 73 and the oil cleaning agent, the oil, rust and other impurities on the surface can be removed to ensure that the coating can be evenly attached to the surface of the steel wire. When passing through the pickling agent, the oxide layer can be further removed and a better adhesion basis can be provided for the coating. The residual solvent on the steel wire is cleaned with clean water to complete the pretreatment operation before coating the steel wire; Step 4: When the steel wire is transferred upward into the cylinder 6, the absorbent cotton 79 can wipe the solvent on the surface of the steel wire to quickly dry the surface of the steel wire for surface spray coating. The reduction motor 713 is started to drive the handle 714 to rotate, so as to drive the push block 715 to rotate in a circle, so that the push block 715 drives the bar column 711 to move to one side by pushing the inner wall of the strip groove 712, so that under the movement restriction of the slider 76, the slider 76 drives the connecting plate 78 and the absorbent cotton 79 to move to one side, and the connecting plate 78 is moved on the guide rod. The sliding bead 718 is pushed under the restriction of 716, so that the sliding bead 718 moves on the arc rod 717 and the guide rod 716, so as to push the connecting plate 78 and the water-absorbing cotton 79 on the other side to move in the opposite direction, so that the water-absorbing cotton 79 on both sides of the steel wire can be moved. Under the continuous rotation of the push block 715, the bar column 711 can drive the slider 76 and the water-absorbing cotton 79 to move back and forth, so as to avoid the same position from absorbing water on the surface of the steel wire all the time, thereby avoiding reducing the drying effect on the surface of the steel wire, so as to ensure that the pretreatment of the surface of the steel wire is accelerated and the production efficiency is improved; Step five: After the steel wire is transferred to the cylinder 6 through the third guide roller 81, the surface of the steel wire is coated through the spray tube 83 and the spray gun 82 under the operation of the sprayer 84. The coated steel wire passes through the baffle 87 and moves to the bottom of the drying hood 85. Under the action of the drying fan 86, the surface coating of the steel wire can be quickly dried to improve the adhesion of the coating. There is no need to turn during the drying process to leave sufficient drying time for the steel wire coating to avoid contact with the coating and cause damage to the coating, making the coating more uniform and improving product quality. The steel wire coating device has a reasonable structural design, which fully saves production space and increases the service life of the tire bead wire, which is conducive to wide promotion.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bead wire surface coating device, characterized in that: include: Base (1); A stand (2) is arranged on one side of the top end of the base (1), and universal wheels (3) are fixedly arranged at four corners of the bottom end of the stand (2); A steel wire conveying and winding mechanism (4) is arranged on the inner side of the vertical frame (2); A bottom box (5) is fixedly arranged on the other side of the top end of the base (1); A cylinder (6) fixedly arranged on the top of the bottom box (5); A steel wire surface treatment mechanism (7) disposed in the inner cavity of the bottom box (5); A spray coating mechanism (8) is arranged in the inner cavity of the cylinder (6).

2. A bead wire surface coating device according to claim 1, characterized in that: The steel wire conveying and winding mechanism (4) comprises: A rotating shaft (41), wherein the rotating shaft (41) is rotatably provided at both upper and lower ends of the inner side of the stand (2) via bearings; A wire ring roller (42) connected by a key to the rear side of the outer wall of the rotating shaft (41); A strip-shaped shell (43) fixedly arranged on the front side of the stand (2) in the up-down direction; A servo motor (44) is fixedly arranged at the front bottom end of the strip housing (43), one end of the rotating shaft (41) extends into the strip housing (43), and the output end of the servo motor (44) is locked with one end of one of the rotating shafts (41) via a coupling; A toothed belt pulley (45) is key-connected to the outer wall of the rotating shaft (41), and the toothed belt pulley (45) is located in the strip shell (43); A toothed belt (46) meshes with the two toothed belt pulleys (45).

3. A bead wire surface coating device according to claim 2, characterized in that: The steel wire conveying and winding mechanism (4) further comprises: A push plate (47) is arranged on the rear side of the wire ring roller (42) in the up-down direction, the rear side of the wire ring roller (42) and the front side of the push plate (47) are rotatably connected via a bearing, and the push plate (47) is sleeved with the rotating shaft (41); A hydraulic cylinder (48) is fixedly arranged on the rear side of the stand (2), and one end of the hydraulic cylinder (48) extends into the inner side of the stand (2) and is fixedly connected to the rear side of the push plate (47).

4. A bead wire surface coating device according to claim 3, characterized in that: The outer wall of the wire ring roller (42) located at the lower side is wound with a steel wire, and the steel wire passes through the upper side of the outer wall of the wire ring roller (42), penetrates the bottom box (5) and the cylinder (6) in sequence, and passes through the bottom end of the outer wall of the wire ring roller (42) and is wound around the outer wall of the upper side wire ring roller (42).

5. A bead wire surface coating device according to claim 4, characterized in that: The steel wire surface treatment mechanism (7) comprises: Partition plates (71), with partition plates (71) being fixedly arranged on both left and right sides of the inner cavity of the bottom box (5); A first guide roller (72), a first guide roller (72) being fixedly disposed on one side of the top end of the bottom box (5) and on the top end of the partition plate (71); A second guide roller (73), the inner cavity of the bottom box (5) is provided with a second guide roller (73) which is rotated from left to right, and a plurality of through holes are formed on the outer side of the second guide roller (73); A connecting frame (74) fixedly arranged at a top end of one side of the inner cavity of the bottom box (5); A fixing frame (75) fixedly arranged on one side of the connecting frame (74); A sliding block (76), wherein both left and right sides of the inner cavity of the fixing frame (75) are provided with sliding grooves (77) along the front-rear direction, and the inner cavity of the sliding groove (77) is plugged with the sliding block (76); A connecting plate (78) fixedly disposed on the inner side of the sliding block (76); Water-absorbing cotton (79) is fixedly arranged on the inner side of the connecting plate (78); The water-absorbing cotton (79) on both sides clamps the steel wire in the middle.

6. A bead wire surface coating device according to claim 5, characterized in that: The steel wire surface treatment mechanism (7) further comprises: A cover body (710) is fixedly arranged on one side of the fixing frame (75), and the slide groove (77) on one side is in communication with the inner cavity of the cover body (710); A strip column (711), wherein the slider (76) on one side extends into the inner cavity of the cover body (710) and is fixedly provided with a strip column (711) arranged in the up-down direction, and a strip groove (712) is provided on one side of the strip column (711); A reduction motor (713) fixedly arranged on one side of the cover body (710); A rotating handle (714), wherein the output end of the reduction motor (713) extends into the inner cavity of the cover body (710) and is fixedly provided with the rotating handle (714); The push block (715) is fixedly arranged on one side of the rotating handle (714), and the push block (715) is adapted to be plugged into one side of the inner cavity of the strip groove (712).

7. A bead wire surface coating device according to claim 6, characterized in that: The steel wire surface treatment mechanism (7) further comprises: A guide rod (716), wherein one side of the connecting plate (78) is plugged with the guide rod (716); An arc-shaped rod (717), wherein the front and rear sides of the guide rod (716) are both fixedly provided with an arc-shaped rod (717), the two ends of the arc-shaped rod (717) are respectively fixedly connected to the guide rods (716) on the left and right sides, and the outer wall of the arc-shaped rod (717) extends out of the outside of the fixed frame (75); A sliding bead (718) is sleeved on a portion of the outer wall of the arc-shaped rod (717) and the guide rod (716), and the connecting plate (78) is in contact with the sliding bead (718) on one side.

8. A bead wire surface coating device according to claim 7, characterized in that: The sliding beads (718) are distributed on the outer walls of the arc-shaped rod (717) and the guide rod (716), and the connecting plate (78) can push the sliding beads (718) to slide.

9. A bead wire surface coating device according to claim 8, characterized in that: The spray coating mechanism (8) comprises: A third guide roller (81) is fixedly arranged on one side of the bottom end of the inner cavity of the cylinder (6), and the steel wire passes through the second guide roller (73) and vertically bypasses the outer wall of the third guide roller (81); A spray gun (82), wherein the spray gun (82) is fixedly arranged on both the front and rear sides of one end of the inner cavity of the barrel (6); A spray pipe (83) is fixedly arranged at one end of the spray gun (82), and the spray pipe (83) extends out of the outer side of the barrel (6); A sprayer (84) is fixedly arranged on the rear side of the bottom box (5), and the spray pipe (83) is screwed to the spray port of the sprayer (84); A drying hood (85) is fixedly arranged on one side of the top end of the cylinder (6), and the drying hood (85) is in communication with the inner cavity of the cylinder (6); A drying fan (86) is fixedly arranged at the top of the cylinder (6), and an air outlet of the drying fan (86) is interference-fitted with the drying cover (85); The baffle plate (87) is fixedly arranged on one side of the inner cavity of the cylinder (6), and the baffle plate (87) is sleeved with the steel wire.

10. A method for coating the surface of a bead wire, which is applied to a device for coating the surface of a bead wire as claimed in claim 9, characterized in that: The following steps are involved: Step 1: Start the servo motor (44), which can drive the lower rotating shaft (41) to rotate clockwise around its own axis, so as to drive the wire ring roller (42) on one side to rotate, and the upper rotating shaft (41) can be driven by the toothed pulley (45) and the toothed belt (46) to rotate, so that the wire ring rollers (42) on the upper and lower sides rotate synchronously, and through the winding direction of the wire ring roller (42), the lower wire ring roller (42) releases the steel wire and the upper wire ring roller (42) is wound; Step 2: starting the hydraulic cylinder (48) so that the hydraulic cylinder (48) pushes the push plate (47) to continuously move to one side, so that the push plate (47) can push the wire ring roller (42) in a rotating state to move to one side, and by continuously pushing the wire ring roller (42), the steel wire on the wire ring roller (42) can always be kept in one position for transmission and winding; Step 3: During the transmission process, the steel wire can bypass the first guide roller (72) and the second guide roller (73) respectively, so that the steel wire is transmitted in different inner chambers of the bottom box (5). The inner chamber of the bottom box (5) is sequentially filled with an oil cleaning agent, a pickling agent and clean water. When the steel wire passes through the second guide roller (73) and the oil cleaning agent, the oil, rust and other impurities on the surface can be removed to ensure that the coating can be evenly attached to the surface of the steel wire. When passing through the pickling agent, the oxide layer can be further removed and a better adhesion basis can be provided for the coating. The residual solvent on the steel wire is cleaned by clean water to complete the pretreatment operation before coating the steel wire; Step 4: When the steel wire is transferred upward into the cylinder (6), the absorbent cotton (79) can wipe the solvent on the surface of the steel wire to quickly dry the surface of the steel wire for surface spray coating. The reduction motor (713) is started to drive the handle (714) to rotate, so as to drive the push block (715) to rotate in a circle, so that the push block (715) drives the bar column (711) to move to one side by pushing the inner wall of the strip groove (712), so that the slider (76) drives the connecting rod (711) to move to the side under the movement restriction of the slider (76). The connecting plate (78) and the absorbent cotton (79) move to one side, and the connecting plate (78) pushes the sliding bead (718) under the restriction of the guide rod (716), so that the sliding bead (718) moves on the arc rod (717) and the guide rod (716), so as to push the connecting plate (78) and the absorbent cotton (79) on the other side to move in the opposite direction, so that the absorbent cotton (79) on both sides of the steel wire can move, and under the continuous rotation of the push block (715), the bar column (711) can drive the slider (76) and the absorbent cotton (79) to move back and forth; Step 5: After the steel wire is transferred into the cylinder (6) through the third guide roller (81), the surface of the steel wire is coated through the spray pipe (83) and the spray gun (82) under the operation of the sprayer (84). The coated steel wire moves to the bottom of the drying hood (85) through the baffle (87), and the surface coating of the steel wire can be quickly dried under the action of the drying fan (86).

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