Die steel surface repairing device and repairing method thereof

Abstract

The invention belongs to the technical field of die steel surface repairing, and discloses a die steel surface repairing device and a repairing method thereof.The die steel surface repairing device comprises a repairing table, a support is fixedly installed on one side of the repairing table, a protective cover is fixedly installed on the side wall of the support, a cooling assembly and a dust suction assembly are arranged in the protective cover, and a repairing roller is installed in the protective cover; first rotating shafts are fixedly connected to the two ends of the repairing roller, a first belt wheel set is installed on the outer wall of one first rotating shaft, a second rotating shaft is embedded into the inner wall of the top of the first belt wheel set, and a motor is installed at one end of the second rotating shaft; in the working process, the air cylinder drives the push plate to move towards one side of the protective cover, the push plate pushes the die steel to the bottom of the repairing roller, the surface of the die steel is polished and repaired through rotation of the repairing roller, high-temperature chippings generated in the repairing process are blocked by the protective cover, and the problem that metal particles splash in the working environment, and potential safety hazards are likely to be caused is solved. And the safety of the working environment is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mold steel surface repair, and specifically relates to a mold steel surface repair device and a repair method thereof. Background Art

[0002] Die steel is a key material for manufacturing molds such as cold stamping dies, hot forging dies, and die-casting dies. Its quality directly affects the quality of the press process, product precision, output, and production costs. During use, molds are subjected to wear, extrusion, impact, and thermal fatigue, and their surfaces often experience failures such as angle collapse, deformation, wear, cracks, and even breakage, resulting in a reduced service life. This is especially true for large or complex molds, which have long manufacturing cycles and high processing costs. Early failure can cause significant economic losses to the company.

[0003] Currently, mold repair technologies primarily include thermal spraying, brush plating, surfacing, and laser repair. Among these, using a grinding roller to repair the mold steel surface is a relatively traditional and common method. However, due to the high hardness of mold steel (e.g., HRC55 and above), grinding easily generates high-temperature debris. The high-speed splashing of metal particles can pose a safety hazard in the operating environment. Summary of the Invention

[0004] The purpose of the present invention is to provide a mold steel surface repair device and a repair method thereof to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a mold steel surface repair device, comprising a repair table, a bracket fixedly mounted on one side of the repair table, a protective cover fixedly mounted on the side wall of the bracket, a cooling component and a dust collection component provided inside the protective cover, the protective cover being arranged above the repair table, a repair roller installed inside the protective cover, both ends of the repair roller are fixedly connected to a first rotating shaft, a first pulley group is mounted on the outer wall of one of the first rotating shafts, a second rotating shaft is embedded in the inner wall of the top of the first pulley group, and a motor is mounted on one end of the second rotating shaft;

[0006] A push plate is provided on one side of the protective cover, a cylinder is installed on one side of the push plate, and the cylinder is fixedly installed on the top of the repair platform.

[0007] As a further technical solution of the present invention, the cooling assembly includes a nozzle arranged inside the protective cover, and the nozzles are evenly arranged above the repair roller. Each of the nozzles is connected by a fixed first connecting pipe, and the top of the first connecting pipe is fixedly connected to a liquid outlet pipe. A water pump is installed at the end of the liquid outlet pipe away from the first connecting pipe, and a liquid inlet pipe is installed at the input end of the water pump, and the liquid inlet pipe is embedded in the interior of the bracket.

[0008] As a further technical solution of the present invention, absorbent cotton is installed on both sides of the inner wall of the protective cover, and the side walls of the two absorbent cottons are both provided with drainage components.

[0009] As a further technical solution of the present invention, the dust collection assembly includes fourth connecting pipes installed on both sides of the interior of the protective cover, the side walls of the two fourth connecting pipes are evenly installed with the first dust collection pipe, the top ends of the two fourth connecting pipes are fixedly connected to the second connecting pipe, the second connecting pipe is arranged on the top of the protective cover, the end of the second connecting pipe away from the protective cover is installed with a dust collection pump, the output end of the dust collection pump is installed with a third connecting pipe, and the third connecting pipe is embedded in the interior of the bracket;

[0010] A filter is provided at the bottom of the third connecting pipe, and the filter is installed inside the bracket.

[0011] As a further technical solution of the present invention, the first dust suction pipe is arranged to be tilted downward.

[0012] As a further technical solution of the present invention, a second dust suction pipe is evenly installed at the bottom end of the fourth connecting pipe.

[0013] As a further technical solution of the present invention, the drainage assembly includes a drainage roller arranged on the side wall of the absorbent cotton, the top end of the drainage roller is fixedly connected to a third rotating shaft, the top end of the third rotating shaft is rotatably connected to a slider, the inner wall of the slider is engaged with a reciprocating screw, one end of the reciprocating screw is installed with a second pulley group, and the end of the second pulley group away from the reciprocating screw is installed on the outer wall of the second rotating shaft.

[0014] As a further technical solution of the present invention, a gear is fixedly mounted on the outer wall of the third rotating shaft, one side of the gear is meshedly connected with a rack plate, and the rack plate is fixedly mounted on the inner wall of the protective cover.

[0015] As a further technical solution of the present invention, a central shaft is fixedly installed inside the drainage roller, and springs are installed on the outer wall of the central shaft in a ring array.

[0016] A repair method for a mold steel surface repair device comprises the following steps:

[0017] S1: When working, first place the mold steel on the top of the repair table so that one side of it is in contact with the side of the push plate, then start the motor to drive the second rotating shaft to rotate. When the second rotating shaft rotates, it drives the first rotating shaft to rotate through the first pulley set. The rotation of the first rotating shaft drives the rotation of the repair roller;

[0018] S2: Then the push plate is driven by the cylinder to move to one side of the protective cover, so that the push plate pushes the mold steel to the bottom of the repair roller, and the surface of the mold steel is polished and repaired by the rotation of the repair roller;

[0019] At the same time, the water pump is started to extract the coolant inside the bracket through the liquid inlet pipe, and the coolant is connected to the liquid outlet pipe and the first connecting pipe and finally discharged from the nozzle to cool the repair roller;

[0020] S3: The hot debris and splashing coolant generated during the repair process are blocked by the protective cover, and the coolant is absorbed by the absorbent cotton;

[0021] At the same time, the vacuum pump is started, and negative pressure is generated in the first vacuum pipe through the connection between the second connecting pipe and the fourth connecting pipe, so as to suck away the high-temperature debris and splashed coolant generated during the repair process;

[0022] S4: When the second rotating shaft rotates, the reciprocating screw is driven to rotate through the transmission of the second pulley group, the rotation of the reciprocating screw drives the slider to move back and forth, the movement of the slider drives the movement of the third rotating shaft, and the movement of the third rotating shaft drives the gear to move, and the gear engages with the rack plate and rotates when it moves, thereby rotating the drainage roller, which makes the drainage roller move back and forth and rotate on the side wall of the absorbent cotton, and evenly discharges the water inside the absorbent cotton, which is sucked away by the second dust suction pipe. The sucked away coolant is filtered through the filter and returned to the storage chamber for reuse.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The present invention uses a protective cover to protect the repair roller. When working, the mold steel is first placed on the top of the repair table, and one side of it is in contact with the side of the push plate. Then the motor is started to drive the second rotating shaft to rotate. When the second rotating shaft rotates, it drives the first rotating shaft to rotate through the first pulley group. The rotation of the first rotating shaft drives the rotation of the repair roller. Finally, the push plate is driven by the cylinder to move to one side of the protective cover, so that the push plate pushes the mold steel to the bottom of the repair roller. The surface of the mold steel is polished and repaired by the rotation of the repair roller. The high-temperature debris generated during the repair process is blocked by the protective cover to prevent metal particles from splashing in the working environment, which may easily cause safety hazards, thereby improving the safety of the working environment.

[0025] 2. The present invention uses absorbent cotton to buffer and absorb splashing coolant, thereby reducing the direct impact of the liquid on the protective cover, and at the same time adsorbing and collecting the coolant to prevent it from leaking or forming secondary splashes.

[0026] 3. The present invention is provided with a drainage component. When working, the rotation of the second rotating shaft drives the rotation of the reciprocating screw through the transmission of the second pulley group. The rotation of the reciprocating screw drives the slider to move back and forth. The movement of the slider drives the movement of the third rotating shaft. The movement of the third rotating shaft drives the movement of the drainage roller, so that the drainage roller moves back and forth on the side wall of the absorbent cotton, which helps to press out the water inside the absorbent cotton, prevent saturation, and restore its water absorption performance, thereby ensuring an anti-splashing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0029] Figure 3 For the present invention Figure 2 A schematic diagram of the structure at center A;

[0030] Figure 4 This is a structural diagram of the fourth connecting pipe of the present invention;

[0031] Figure 5 This is a front view of the structure of the protective cover of the present invention;

[0032] Figure 6 Schematic diagram of the cross-section of the structure of the bracket of the present invention;

[0033] Figure 7 This is a structural diagram of the repair roller of the present invention;

[0034] Figure 8 This is a schematic cross-sectional view of the structure of the drainage roller of the present invention.

[0035] In the figure: 1. Repair table; 2. Bracket; 3. Protective cover; 4. Repair roller; 5. First rotating shaft; 6. First pulley group; 7. Second rotating shaft; 8. Motor; 9. Nozzle; 10. First connecting pipe; 11. Liquid outlet pipe; 12. Water pump; 13. Liquid inlet pipe; 14. Absorbent cotton; 15. Dust pump; 16. Second connecting pipe; 17. Third connecting pipe; 18. Filter; 19. First dust pipe; 20. Fourth connecting pipe; 21. Second dust pipe; 22. Drain roller; 23. Slider; 24. Reciprocating screw; 25. Second pulley group; 26. Third rotating shaft; 27. Gear; 28. Rack plate; 29. ​​Center shaft; 30. Spring; 31. Cylinder; 32. Push plate. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] like Figures 1 to 8 As shown, in an embodiment of the present invention, a mold steel surface repair device includes a repair table 1, a bracket 2 is fixedly installed on one side of the repair table 1, a protective cover 3 is fixedly installed on the side wall of the bracket 2, a cooling component and a dust collection component are provided inside the protective cover 3, and the protective cover 3 is arranged above the repair table 1. A repair roller 4 is installed inside the protective cover 3, and both ends of the repair roller 4 are fixedly connected to a first rotating shaft 5, an outer wall of one of the first rotating shafts 5 is installed, and a second rotating shaft 7 is embedded in the inner wall of the top of the first pulley group 6, and a motor 8 is installed at one end of the second rotating shaft 7;

[0038] A push plate 32 is provided on one side of the protective cover 3 , and a cylinder 31 is installed on one side of the push plate 32 . The cylinder 31 is fixedly installed on the top of the repair platform 1 .

[0039] During operation, the mold steel is first placed on the top of the repair table 1, and one side of it is in contact with the side of the push plate 32. Then the motor 8 is started to drive the second rotating shaft 7 to rotate. When the second rotating shaft 7 rotates, it drives the first rotating shaft 5 to rotate through the first pulley set 6. The rotation of the first rotating shaft 5 drives the rotation of the repair roller 4.

[0040] Finally, the push plate 32 is driven by the cylinder 31 to move to one side of the protective cover 3, so that the push plate 32 pushes the mold steel to the bottom of the repair roller 4, and the surface of the mold steel is polished and repaired by the rotation of the repair roller 4. The high-temperature debris generated during the repair process is blocked by the protective cover 3 to prevent metal particles from splashing in the working environment and causing safety hazards, thereby improving the safety of the working environment.

[0041] like Figure 2 、 Figure 3 and Figure 5 As shown, the cooling assembly includes a nozzle 9 arranged inside the protective cover 3, and the nozzles 9 are evenly arranged above the repair roller 4. Each nozzle 9 is connected by a fixed first connecting pipe 10. The top of the first connecting pipe 10 is fixedly connected to a liquid outlet pipe 11. A water pump 12 is installed at the end of the liquid outlet pipe 11 away from the first connecting pipe 10. A liquid inlet pipe 13 is installed at the input end of the water pump 12, and the liquid inlet pipe 13 is embedded in the interior of the bracket 2.

[0042] A storage chamber is provided at the bottom of the bracket 2, which is filled with a coolant for cooling the repair roller 4;

[0043] When working, the water pump 12 is started, and the coolant inside the bracket 2 is extracted through the liquid inlet pipe 13, connected through the liquid outlet pipe 11 and the first connecting pipe 10, and finally discharged from the nozzle 9 to cool the repair roller 4, take away the grinding heat, reduce the thermal wear of the repair roller 4, and help to increase the service life of the repair roller 4.

[0044] like Figure 5 As shown, absorbent cotton 14 is installed on both sides of the inner wall of the protective cover 3, and the side walls of the two absorbent cottons 14 are both provided with drainage components.

[0045] The splashing coolant is buffered and absorbed by the absorbent cotton 14 (such as polyurethane or PVA sponge), reducing the direct impact of the liquid on the protective cover 3, and at the same time adsorbing and collecting the coolant to prevent it from leaking or forming secondary splashes.

[0046] like Figures 1 to 6 As shown, the dust collection assembly includes fourth connecting pipes 20 installed on both sides of the interior of the protective cover 3. The side walls of the two fourth connecting pipes 20 are evenly installed with the first dust collection pipes 19. The top ends of the two fourth connecting pipes 20 are fixedly connected to the second connecting pipe 16. The second connecting pipe 16 is arranged on the top of the protective cover 3. The end of the second connecting pipe 16 away from the protective cover 3 is installed with a dust collection pump 15. The output end of the dust collection pump 15 is installed with a third connecting pipe 17. The third connecting pipe 17 is embedded in the interior of the bracket 2.

[0047] A filter screen 18 is provided at the bottom of the third connecting pipe 17 , and the filter screen 18 is installed inside the bracket 2 .

[0048] During operation, the dust suction pump 15 is started, and through the connection between the second connecting pipe 16 and the fourth connecting pipe 20, negative pressure is generated in the first dust suction pipe 19 to suck away the high-temperature debris and splashing coolant generated during the repair process, preventing them from accumulating in the protective cover 3 or leaking out, thereby significantly improving operation safety, equipment reliability and product quality.

[0049] The coolant is filtered through the filter 18 and then returned to the storage chamber for secondary use.

[0050] like Figure 4 and Figure 5 As shown, the first dust suction pipe 19 is arranged to be tilted downward.

[0051] The first dust suction pipe 19 is tilted downwardly toward one side of the repair roller 4. The tilted dust suction pipe can cover the area below the grinding roller to prevent dust from falling to the bottom of the protective cover 3 due to gravity and being unable to be sucked out.

[0052] like Figure 4 and Figure 5 As shown, the second dust suction pipe 21 is evenly installed at the bottom end of the fourth connecting pipe 20.

[0053] The bottom of the repair roller 4 is provided with a groove, into which the absorbent cotton 14 is embedded, and the bottom of the second dust suction pipe 21 is flush with the groove to prevent the coolant inside the absorbent cotton 14 from flowing out;

[0054] At the same time, the coolant in the groove is sucked away through the second dust suction pipe 21.

[0055] like Figure 5 and Figure 7 As shown, the drainage assembly includes a drainage roller 22 arranged on the side wall of the absorbent cotton 14, the top of the drainage roller 22 is fixedly connected to the third rotating shaft 26, the top of the third rotating shaft 26 is rotatably connected to the slider 23, the inner wall of the slider 23 is engaged with the reciprocating screw 24, one end of the reciprocating screw 24 is installed with a second pulley group 25, and the end of the second pulley group 25 away from the reciprocating screw 24 is installed on the outer wall of the second rotating shaft 7.

[0056] During operation, the rotation of the second rotating shaft 7 drives the rotation of the reciprocating screw 24 through the transmission of the second pulley set 25, and the rotation of the reciprocating screw 24 drives the slider 23 to move back and forth. The movement of the slider 23 drives the movement of the third rotating shaft 26. The movement of the third rotating shaft 26 drives the movement of the drainage roller 22, so that the drainage roller 22 moves back and forth on the side wall of the absorbent cotton 14, which helps to press out the water inside the absorbent cotton 14 to prevent saturation and restore its water absorption performance, thereby ensuring an anti-splashing effect.

[0057] like Figure 5 、 Figure 7 and Figure 8 As shown, a gear 27 is fixedly mounted on the outer wall of the third rotating shaft 26 , and a rack plate 28 is meshedly connected to one side of the gear 27 . The rack plate 28 is fixedly mounted on the inner wall of the protective cover 3 .

[0058] During operation, the movement of the third rotating shaft 26 drives the gear 27 to move. When the gear 27 moves, it engages with the rack plate 28 and rotates, thereby rotating the drainage roller 22 to avoid local excessive squeezing or non-squeezing, and ensure uniform drainage of water.

[0059] like Figure 8 As shown, a central shaft 29 is fixedly installed inside the drainage roller 22, and springs 30 are installed on the outer wall of the central shaft 29 in an annular array.

[0060] The interior of the drain roller 22 is hollow, and the outer wall of the drain roller 22 is elastic.

[0061] The elastic potential energy of the spring 30 causes the drain roller 22 to always tend to expand outward, which not only improves the drainage effect but also prevents adverse effects caused by hard contact between the drain roller 22 and the first dust suction pipe 19 .

[0062] A repair method for a mold steel surface repair device comprises the following steps:

[0063] S1: During operation, the mold steel is first placed on the top of the repair table 1 so that one side thereof is in contact with the side of the push plate 32. Then, the motor 8 is started to drive the second rotating shaft 7 to rotate. When the second rotating shaft 7 rotates, the first rotating shaft 5 is driven to rotate through the first pulley set 6. The rotation of the first rotating shaft 5 drives the repair roller 4 to rotate.

[0064] S2: Then the cylinder 31 drives the push plate 32 to move to one side of the protective cover 3, so that the push plate 32 pushes the mold steel to the bottom of the repair roller 4, and the surface of the mold steel is polished and repaired by the rotation of the repair roller 4;

[0065] At the same time, the water pump 12 is started to extract the coolant inside the bracket 2 through the liquid inlet pipe 13 and connect it to the liquid outlet pipe 11 and the first connecting pipe 10, and finally discharge it from the nozzle 9 to cool the repair roller 4;

[0066] S3: The hot debris and splashing coolant generated during the repair process are blocked by the protective cover 3, and the coolant is absorbed by the absorbent cotton 14;

[0067] At the same time, the vacuum pump 15 is started, and through the connection between the second connecting pipe 16 and the fourth connecting pipe 20, a negative pressure is generated in the first vacuum pipe 19 to suck away the high-temperature debris and splashed coolant generated during the repair process;

[0068] S4: When the second rotating shaft 7 rotates, the reciprocating screw 24 is driven to rotate through the transmission of the second pulley set 25, and the rotation of the reciprocating screw 24 drives the slider 23 to move back and forth. The movement of the slider 23 drives the movement of the third rotating shaft 26. When the third rotating shaft 26 moves, it drives the gear 27 to move. When the gear 27 moves, it engages with the rack plate 28 and rotates, thereby rotating the drainage roller 22, so that the drainage roller 22 reciprocates and rotates on the side wall of the absorbent cotton 14, and the water inside the absorbent cotton 14 is evenly discharged and sucked away by the second dust suction pipe 21. The sucked away coolant is filtered through the filter 18 and returned to the storage chamber for reuse.

[0069] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A mold steel surface repair device, comprising a repair table (1), characterized in that: A bracket (2) is fixedly mounted on one side of the repair table (1), a protective cover (3) is fixedly mounted on the side wall of the bracket (2), a cooling component and a dust collection component are arranged inside the protective cover (3), the protective cover (3) is arranged above the repair table (1), a repair roller (4) is installed inside the protective cover (3), both ends of the repair roller (4) are fixedly connected to a first rotating shaft (5), a first pulley group (6) is mounted on the outer wall of one of the first rotating shafts (5), a second rotating shaft (7) is embedded in the inner wall of the top of the first pulley group (6), and a motor (8) is mounted on one end of the second rotating shaft (7); A push plate (32) is provided on one side of the protective cover (3), a cylinder (31) is installed on one side of the push plate (32), and the cylinder (31) is fixedly installed on the top of the repair platform (1).

2. A mold steel surface repair device according to claim 1, characterized in that: The cooling assembly includes a nozzle (9) arranged inside the protective cover (3), and the nozzles (9) are evenly arranged above the repair roller (4). Each of the nozzles (9) is connected by a fixed first connecting pipe (10), and the top of the first connecting pipe (10) is fixedly connected to a liquid outlet pipe (11), and a water pump (12) is installed at one end of the liquid outlet pipe (11) away from the first connecting pipe (10), and a liquid inlet pipe (13) is installed at the input end of the water pump (12), and the liquid inlet pipe (13) is embedded in the interior of the bracket (2).

3. The mold steel surface repair device according to claim 1, characterized in that: Water-absorbing cotton (14) is installed on both sides of the inner wall of the protective cover (3), and the side walls of the two water-absorbing cottons (14) are both provided with drainage components.

4. The mold steel surface repair device according to claim 1, characterized in that: The dust collection assembly includes a fourth connecting pipe (20) installed on both sides of the interior of the protective cover (3), the side walls of the two fourth connecting pipes (20) are evenly installed with the first dust collection pipe (19), the top ends of the two fourth connecting pipes (20) are fixedly connected to the second connecting pipe (16), the second connecting pipe (16) is arranged on the top of the protective cover (3), the end of the second connecting pipe (16) away from the protective cover (3) is installed with a dust collection pump (15), the output end of the dust collection pump (15) is installed with a third connecting pipe (17), and the third connecting pipe (17) is embedded in the interior of the bracket (2); A filter screen (18) is provided at the bottom of the third connecting pipe (17), and the filter screen (18) is installed inside the bracket (2).

5. The mold steel surface repair device according to claim 4, characterized in that: The first dust suction pipe (19) is arranged to be tilted downward.

6. The mold steel surface repair device according to claim 4, characterized in that: The second dust suction pipe (21) is evenly mounted on the bottom end of the fourth connecting pipe (20).

7. The mold steel surface repair device according to claim 3, characterized in that: The drainage assembly includes a drainage roller (22) arranged on the side wall of the absorbent cotton (14), the top end of the drainage roller (22) is fixedly connected to a third rotating shaft (26), the top end of the third rotating shaft (26) is rotatably connected to a slider (23), the inner wall of the slider (23) is meshedly connected to a reciprocating screw (24), one end of the reciprocating screw (24) is installed with a second pulley group (25), and the end of the second pulley group (25) away from the reciprocating screw (24) is installed on the outer wall of the second rotating shaft (7).

8. The mold steel surface repair device according to claim 7, characterized in that: A gear (27) is fixedly mounted on the outer wall of the third rotating shaft (26), one side of the gear (27) is meshedly connected with a rack plate (28), and the rack plate (28) is fixedly mounted on the inner wall of the protective cover (3).

9. The mold steel surface repair device according to claim 7, characterized in that: A central shaft (29) is fixedly mounted inside the drainage roller (22), and springs (30) are mounted on the outer wall of the central shaft (29) in a ring array.

10. A repair method for a mold steel surface repair device, the method being applicable to a mold steel surface repair device according to claims 1 to 9, characterized in that: The following steps are involved: S1: When working, first place the mold steel on the top of the repair table (1) so that one side thereof is in contact with the side of the push plate (32), and then start the motor (8) to drive the second rotating shaft (7) to rotate. When the second rotating shaft (7) rotates, it drives the first rotating shaft (5) to rotate through the first pulley group (6), and the rotation of the first rotating shaft (5) drives the rotation of the repair roller (4); S2: Then, the push plate (32) is driven by the cylinder (31) to move toward one side of the protective cover (3), so that the push plate (32) pushes the mold steel to the bottom of the repair roller (4), and the surface of the mold steel is polished and repaired by the rotation of the repair roller (4); Simultaneously, the water pump (12) is started to extract the cooling liquid inside the bracket (2) through the liquid inlet pipe (13), and the cooling liquid is connected to the liquid outlet pipe (11) and the first connecting pipe (10) and finally discharged from the nozzle (9) to cool the repair roller (4); S3: The hot debris and splashing coolant generated during the repair process are blocked by the protective cover (3), and the coolant is absorbed by the absorbent cotton (14); Simultaneously, the dust suction pump (15) is started, and through the connection between the second connecting pipe (16) and the fourth connecting pipe (20), negative pressure is generated in the first dust suction pipe (19), thereby sucking away the high-temperature debris and splashed coolant generated during the repair process; S4: When the second rotating shaft (7) rotates, the reciprocating screw (24) is driven to rotate through the transmission of the second pulley group (25), and the rotation of the reciprocating screw (24) drives the slider (23) to move back and forth. The movement of the slider (23) drives the movement of the third rotating shaft (26). When the third rotating shaft (26) moves, it drives the gear (27) to move. When the gear (27) moves, it engages with the rack plate (28) and rotates, thereby rotating the drainage roller (22). The drainage roller (22) moves back and forth and rotates on the side wall of the absorbent cotton (14), and the water inside the absorbent cotton (14) is evenly discharged and sucked away by the second dust suction pipe (21). The sucked away coolant is filtered by the filter (18) and returned to the storage chamber for reuse.

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