Stainless steel protective film covering device

By designing a stainless steel protective coating device including a rotating triangular column mechanism and a water outlet cooling mechanism, the problem of not being sealed in the prior art is solved, and efficient polishing and precision coating of the surface of the stainless steel is achieved, ensuring the sealing property and service life of the coating are extended.

CN119636049AInactive Publication Date: 2025-03-18INNER MONGOLIA KAISEN FURNITURE CO LTD
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Patent Information

Application Number
CN202510067935.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-03-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing stainless steel coating devices cannot cover the inside of the tubular stainless steel, and due to surface impurities, the coating is not sealed, making it easy to cause scratches and other damage.

Method used

A stainless steel protective coating device is designed, including a rotating triangular column mechanism and a water outlet cooling mechanism. The surface of the stainless steel is polished and cleaned by grinding rubber blocks and grinding iron blocks of the rotating triangular column mechanism to remove surface impurities; at the same time, the water outlet cooling mechanism uses water to cool down to prevent the temperature from being too high during grinding. The internal coating mechanism uses a servo motor and a brushing mechanism to achieve precision coating on the outer and inner surfaces of stainless steel.

Benefits of technology

Through the design of this device, it can effectively remove impurities and scratches on the surface of stainless steel, ensure the sealing and integrity of the coating, and extend the service life of stainless steel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a stainless steel protective film covering device, and relates to the field of stainless steel film covering, the stainless steel protective film covering device comprises a device bottom plate, the lower surface of the device bottom plate is fixedly connected with a supporting foot stool, and the periphery of the upper surface of the device bottom plate is fixedly connected with a protective shell; the end, close to the device bottom plate, of the inner surface of the protection shell is fixedly connected with an external film covering mechanism, the end, away from the device bottom plate, of the inner surface of the protection shell is fixedly connected with a grinding mechanism, and the center of the upper surface of the device bottom plate is fixedly connected with an internal film covering mechanism. And before film coating, impurities on the outer surface of the stainless steel material are cleaned, and protruding spines and aluminum blocks are eliminated and ground to be flat through rotary grinding.
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Description

Technical Field

[0001] The invention relates to the field of stainless steel coating, in particular to a stainless steel protective coating device. Background Art

[0002] Stainless steel has excellent metal properties such as machinability, formability, corrosion resistance, and recyclability, so it can be bent and applied to various fields such as the construction industry, vehicle manufacturing industry, and automated machinery industry. Common stainless steel materials include strips, plates, and special shapes. During the production and processing process, they need to go through multiple processes to be processed into final products. In order to ensure that the finished stainless steel materials are not damaged during storage and transportation and to extend the service life of stainless steel materials, it is usually necessary to perform surface oxidation or surface coating treatment on the finished stainless steel materials. In particular, long strips or tubular stainless steel materials are more susceptible to damage during storage and transportation, resulting in scratches on the surface. The prior art adopts a comprehensive coating treatment for such long strips or tubular stainless steel materials, so that the stainless steel materials pass through the coating device to coat the surface of the stainless steel materials. However, the existing device cannot coat the inside of the tubular stainless steel materials during the coating process, especially for tubular materials. During the coating process, the impurities on the surface of the stainless steel materials will also cause the coating to not fit, resulting in a non-sealed situation. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention adopts the following technical solutions to solve the technical problems: a stainless steel material protective coating device according to the present invention comprises a device bottom plate, a support frame is fixedly connected to the lower surface of the device bottom plate, a protective shell is fixedly connected to the upper surface of the device bottom plate, an external coating mechanism is fixedly connected to the end of the inner surface of the protective shell close to the device bottom plate, a polishing mechanism is fixedly connected to the end of the inner surface of the protective shell away from the device bottom plate, and an internal coating mechanism is fixedly connected to the center of the upper surface of the device bottom plate; The polishing mechanism comprises a rotating triangular prism mechanism, and a water outlet cooling mechanism is fixedly connected to the inner surface of the rotating triangular prism mechanism; The rotating triangular column mechanism includes a hanging plate 1, the end of the hanging plate 1 away from the protective shell is rotatably connected to a rotating circular plate, the end of the rotating circular plate away from the hanging plate 1 is fixedly connected to a supporting plate 1, the inner surface of the supporting plate 1 is fixedly connected to an angled slide, the surface of the angled slide is slidably connected to a rotating shaft 1, the outer surface of the rotating shaft 1 is fixedly connected to a triangular plate, the triangular end of the triangular plate is fixedly connected to a polished rubber block, the outer surface of the triangular plate is fixedly connected to a telescopic spring 1, and the end of the telescopic spring 1 away from the triangular plate is fixedly connected to a polished iron block , the rotating circular plate rotates, driving the supporting plate to rotate. The centripetal force generated by the rotation causes the rotating shaft to rotate, and further causes the rotating shaft to slide on the bevel slide. Since the tail of the bevel slide is wide and the head is narrow, the movement of the rotating shaft is limited. When it reaches the limit position, the rotating shaft rotates on itself, thereby driving the triangular plate to rotate, causing the polishing rubber block to scratch the outer surface of the stainless steel, thereby absorbing the mud on the surface. When there is a protruding aluminum block on the surface, in order to avoid the film from rupturing during coating, the rotation drives the telescopic spring to deform, and causes the polishing iron block to impact and grind the protruding aluminum block.

[0004] Preferably, the outer surface of the hanging plate 1 is fixedly connected to the inner surface of the protective shell, and the circular surface of the rotating shaft 1 is slidably connected to the inner surface of the supporting plate 1.

[0005] Preferably, the water outlet cooling mechanism includes a water outlet shell, an inner surface of the water outlet shell is fixedly connected with a fixed plate 1, a top end of the inner surface of the water outlet shell is fixedly connected with a telescopic spring 2, an end of the telescopic spring 2 away from the water outlet shell is fixedly connected with a sealing baffle, an end of the support plate 1 close to the rotating circular plate is fixedly connected with a cleaning brush, and an impurity storage box is fixedly connected to the lower surface of the triangular plate. The water outlet shell is filled with water. When the outer surface of the stainless steel is polished, the impact generates vibration, causing the telescopic spring 2 to deform, thereby moving the sealing baffle downward, so that water flows out of the shell to cool down the polished iron block to prevent the temperature from being too high during polishing and the stainless steel from being deformed due to heat. When rotating, the brush also rubs against the polished iron block and the polished rubber block to remove stains on the surface.

[0006] Preferably, the external coating mechanism comprises a rotary coating mechanism, and a pressing mechanism is fixedly connected to the inner surface of the rotary coating mechanism.

[0007] Preferably, the rotating coating mechanism includes a hanging plate 2, an end of the hanging plate 2 away from the protective shell is fixedly connected to a support plate 2, an end of the support plate 2 away from the hanging plate 2 is fixedly connected to a support plate 3, a coating rod 1 is fixedly and rotatably connected to the surface of the support plate 3, and the support plate 3 is rotatably connected to a cutting plate. The stainless steel material rotates so that the film on the coating rod 1 adheres to the outer surface of the stainless steel material.

[0008] Preferably, the pressing mechanism includes a heating device, an end of the heating device away from the support plate 2 is fixedly connected to an air pipe, an end of the air pipe away from the heating device is fixedly connected to an air outlet plate, an outer surface of the air outlet plate is fixedly connected to an air outlet hole, an end of the support plate 3 away from the support plate 2 is fixedly connected to the fixing plate 2, the upper surface of the fixing plate 2 is rotatably connected to a rotating pressing column, the outer surface of the rotating pressing column is fixedly connected to a telescopic spring 3, and an end of the telescopic spring 3 away from the rotating pressing column is fixedly connected to a pressing block, the heating device heats the gas and flows out through the air outlet, thereby heating the pressing column, the gas flows and drives the pressing column to rotate, generates centrifugal force to deform the telescopic spring 3, drives the pressing block to press and heat the film, squeezes out the air in the film, and causes the film to shrink due to the heat.

[0009] Preferably, the internal coating mechanism comprises a lifting mechanism, and a film brushing mechanism is fixedly connected to the outer surface of the lifting mechanism.

[0010] Preferably, the lifting mechanism includes a servo motor, a lead screw is rotatably connected to one end of the device base plate away from the servo motor, a stop block is fixedly connected to one end of the lead screw away from the device base plate, a moving block is rotatably connected to the outer surface of the lead screw, and an anti-fall plate is fixedly connected to the upper surface of the moving block. The servo motor drives the lead screw to rotate, and the rotating lead screw drives the moving block to move up and down and rotates itself, thereby driving the stainless steel material to move.

[0011] Preferably, the film brushing mechanism comprises a hollow cylinder, the outer surface of the hollow cylinder is fixedly connected with a rotating groove, the inner surface of the rotating groove is slidably connected with a support plate four, the end of the support plate four away from the rotating groove is fixedly connected with a fixed plate three, the outer surface of the support plate four is fixedly connected with a heating block, the end of the heating block away from the support plate four is fixedly connected with a heating hole, the surface of the fixed plate three is rotatably connected with a film coating rod two, the support plate four rotates along the rotating groove, so that the film coating rod two fits the inner surface of the stainless steel material, and the film is tightly fitted to the stainless steel material through the heating action of the heating block.

[0012] The beneficial effects of the present invention are as follows: (1) The present invention provides a rotating circular plate. The rotating circular plate rotates, driving the support plate to rotate. The centripetal force generated by the rotation causes the rotating shaft to rotate, and further causes the rotating shaft to slide on the bevel slide. Since the tail of the bevel slide is wide and the head is narrow, the movement of the rotating shaft is limited. When the limit position is reached, the rotating shaft rotates, thereby driving the triangular plate to rotate, causing the polishing rubber block to scratch the outer surface of the stainless steel material, thereby absorbing the mud on the surface. When there is a protruding aluminum block on the surface, in order to avoid the film from rupturing during coating, the rotation drives the telescopic spring to deform, and causes the polishing iron block to impact and grind the protruding aluminum block, thereby making the surface of the stainless steel material smooth.

[0013] (2) The present invention provides a water outlet housing filled with water. When the outer surface of the stainless steel material is polished, the impact generates vibration, causing the second telescopic spring to deform, thereby causing the sealing baffle to move downward, so that water flows out of the housing, cools the polishing iron block, and prevents the temperature from being too high during polishing, which may cause the stainless steel material to deform due to heat. When rotating, the brush also rubs against the polishing iron block and the polishing rubber block to remove stains on the surface and prevent the presence of impurities from affecting the polishing effect.

[0014] (3) The present invention sets a servo motor, which drives the lead screw to rotate. The rotating lead screw drives the moving block to move up and down and rotates itself, thereby driving the stainless steel material to move, and coating the stainless steel material. The stainless steel material rotates, so that the film on the coating rod 1 adheres to the outer surface of the stainless steel material. The gas is heated by the heating device and flows out through the air outlet, and the pressing column is heated. The gas flows and drives the pressing column to rotate, generating centrifugal force to deform the telescopic spring 3, driving the pressing block to press and heat the film, squeeze out the air in the film, and cause the film to shrink due to heat, so that the film can be precisely attached to the outer surface of the stainless steel material.

[0015] (4) The present invention provides a rotating groove, and the support plate 4 rotates along the rotating groove, so that the coating rod 2 is in contact with the inner surface of the stainless steel material, and the film is closely attached to the stainless steel material through the heating effect of the heating block, thereby preventing the inner surface of the tubular stainless steel material from contacting impurities such as air. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is an overall cross-sectional view of the present invention; Figure 3 It is a structural schematic diagram of the external coating mechanism of the present invention; Figure 4 Figure 3 A magnified view of middle; Figure 5 It is a structural schematic diagram of the rotating triangular prism mechanism of the present invention; Figure 6 It is a structural schematic diagram of the water outlet cooling mechanism of the present invention; Figure 7 It is a structural schematic diagram of the internal laminating mechanism of the present invention; Figure 8 yes Figure 7 Enlarged view of middle B; In the figure: 1. device bottom plate; 2. support tripod; 3. protective shell; 4. grinding mechanism; 41. rotating triangular column mechanism; 411. hanging plate 1; 412. rotating circular plate; 413. supporting plate 1; 414. angled slide; 415. rotating shaft 1; 416. triangular plate; 417. grinding rubber block; 418. telescopic spring 1; 419. grinding iron block; 42. water outlet cooling mechanism; 421. water outlet shell; 422. fixing plate 1; 423. telescopic spring 2; 424. sealing baffle; 425. cleaning brush; 426. impurity storage box; 5. external coating mechanism; 51. rotating coating mechanism; 511. hanging plate 2; 512. support Plate 2; 513, support plate 3; 514, coating rod 1; 515, cutting plate; 52, pressing mechanism; 521, heating device; 522, air pipe; 523, air outlet plate; 524, air outlet hole; 525, fixed plate 2; 526, pressing column; 527, telescopic spring 3; 528, pressing block; 6, internal coating mechanism; 61, lifting mechanism; 611, servo motor; 612, lead screw; 613, moving block; 614, resisting block; 615, anti-drop plate; 62, film brushing mechanism; 621, hollow cylinder; 622, rotating groove; 623, support plate 4; 624, fixed plate 3; 625, heating block; 626, coating rod 2. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0018] Example, using Figure 1-Figure 8 A stainless steel material protective coating device according to one embodiment of the present invention is described as follows.

[0019] like Figure 1-Figure 8 As shown, a protective coating device for stainless steel material of the present invention comprises a device bottom plate 1, a supporting stand 2 is fixedly connected to the lower surface of the device bottom plate 1, a protective shell 3 is fixedly connected to the upper surface of the device bottom plate 1, an external coating mechanism 5 is fixedly connected to one end of the inner surface of the protective shell 3 close to the device bottom plate 1, a polishing mechanism 4 is fixedly connected to one end of the inner surface of the protective shell 3 away from the device bottom plate 1, and an internal coating mechanism 6 is fixedly connected to the center of the upper surface of the device bottom plate 1; The grinding mechanism 4 includes a rotating triangular prism mechanism 41, and a water outlet cooling mechanism 42 is fixedly connected to the inner surface of the rotating triangular prism mechanism 41; The rotating triangular column mechanism 41 includes a hanging plate 411, and the end of the hanging plate 411 away from the protective shell 3 is rotatably connected to a rotating circular plate 412, and the end of the rotating circular plate 412 away from the hanging plate 411 is fixedly connected to a supporting plate 413, and the inner surface of the supporting plate 413 is fixedly connected to an angled slide 414, and the surface of the angled slide 414 is slidably connected to a rotating shaft 415, and the outer surface of the rotating shaft 415 is fixedly connected to a triangular plate 416, and the triangular end of the triangular plate 416 is fixedly connected to a polishing rubber block 417, and the outer surface of the triangular plate 416 is fixedly connected to a telescopic spring 418, and the end of the telescopic spring 418 away from the triangular plate 416 is fixedly connected to a polishing iron block 419, the rotating circular plate 412 rotates, driving the support plate 413 to rotate, and the centripetal force generated by the rotation causes the rotating shaft 415 to rotate, and further causes the rotating shaft 415 to slide on the bevel slide 414. Since the bevel slide 414 is wide at the tail and narrow at the head, the movement of the rotating shaft 415 is limited. When reaching the limit position, the rotating shaft 415 rotates, thereby driving the triangular plate 416 to rotate, causing the polishing rubber block 417 to scratch the outer surface of the stainless steel material, thereby absorbing the mud on the surface. When there is a protruding aluminum block on the surface, in order to avoid the film from rupturing during coating, the rotation drives the telescopic spring 418 to deform, and causes the polishing iron block 419 to impact and grind the protruding aluminum block.

[0020] The outer surface of the hanging plate 411 is fixedly connected to the inner surface of the protective shell 3, and the circular surface of the rotating shaft 415 is slidably connected to the inner surface of the supporting plate 413.

[0021] The water outlet cooling mechanism 42 includes a water outlet housing 421, the inner surface of the water outlet housing 421 is fixedly connected with a fixing plate 1 422, the top of the inner surface of the water outlet housing 421 is fixedly connected with a telescopic spring 2 423, the end of the telescopic spring 2 423 away from the water outlet housing 421 is fixedly connected with a sealing baffle 424, the end of the support plate 1 413 close to the rotating circular plate 412 is fixedly connected with a cleaning brush 425, and the lower surface of the triangular plate 416 is fixedly connected with an impurity storage box 426. The water outlet housing 421 is filled with water. When the outer surface of the stainless steel material is polished, the impact generates vibration, causing the telescopic spring 2 423 to deform, thereby causing the sealing baffle 424 to move downward, so that water flows out of the housing to cool the polishing iron block 419 to prevent the temperature from being too high during polishing and the stainless steel material from being deformed due to heat. When rotating, the cleaning brush 425 also rubs against the polishing iron block 419 and the polishing rubber block 417 to remove stains on the surface.

[0022] The external coating mechanism 5 comprises a rotating coating mechanism 51 , and a pressing mechanism 52 is fixedly connected to the inner surface of the rotating coating mechanism 51 .

[0023] The rotating coating mechanism 51 includes a hanging plate 511, an end of the hanging plate 511 away from the protective shell 3 is fixedly connected to a support plate 512, an end of the support plate 512 away from the hanging plate 511 is fixedly connected to a support plate 3 513, a surface of the support plate 3 513 is fixedly and rotatably connected to a coating rod 514, and the support plate 3 513 is rotatably connected to a cutting plate 515. The stainless steel material rotates so that the film on the coating rod 514 adheres to the outer surface of the stainless steel material.

[0024] The pressing mechanism 52 includes a heating device 521, an end of the heating device 521 away from the second support plate 512 is fixedly connected to an air pipe 522, an end of the air pipe 522 away from the heating device 521 is fixedly connected to an air outlet plate 523, an outer surface of the air outlet plate 523 is fixedly connected to an air outlet hole 524, an end of the support plate 3 513 away from the second support plate 512 is fixedly connected to a second fixing plate 525, an upper surface of the second fixing plate 525 is rotatably connected to a rotating pressing column 526, and the rotating pressing column 526 is fixedly connected to the second fixing plate 525. The outer surface of 26 is fixedly connected with a telescopic spring three 527, and the end of the telescopic spring three 527 away from the rotating pressing column 526 is fixedly connected with a pressing block 528. The heating device 521 heats the gas and flows out through the air outlet 524, thereby heating the pressing column 526. The gas flows and drives the pressing column 526 to rotate, generating centrifugal force to deform the telescopic spring three 527, thereby driving the pressing block 528 to press and heat the membrane, squeeze out the air in the membrane, and cause the membrane to shrink due to the heat.

[0025] The internal coating mechanism 6 comprises a lifting mechanism 61 , and a film brushing mechanism 62 is fixedly connected to the outer surface of the lifting mechanism 61 .

[0026] The lifting mechanism 61 includes a servo motor 611, and the end of the device base plate 1 away from the servo motor 611 is rotatably connected to a lead screw 612, and the end of the lead screw 612 away from the device base plate 1 is fixedly connected to a stop block 614, the outer surface of the lead screw 612 is rotatably connected to a moving block 613, and the upper surface of the moving block 613 is fixedly connected to an anti-fall plate 615. The servo motor 611 drives the lead screw 612 to rotate, and the rotating lead screw 612 drives the moving block 613 to move up and down and rotates itself, thereby driving the stainless steel to move.

[0027] The film brushing mechanism 62 includes a hollow cylinder 621, the outer surface of the hollow cylinder 621 is fixedly connected with a rotating groove 622, the inner surface of the rotating groove 622 is slidably connected with a support plate four 623, the end of the support plate four 623 away from the rotating groove 622 is fixedly connected with a fixed plate three 624, the outer surface of the support plate four 623 is fixedly connected with a heating block 625, the end of the heating block 625 away from the support plate four 623 is fixedly connected with a heating hole 627, the surface of the fixed plate three 624 is rotatably connected with a coating rod two 626, the support plate four 623 rotates along the rotating groove 622, so that the coating rod two 626 is fitted with the inner surface of the stainless steel material, and the film is tightly fitted with the stainless steel material through the heating effect of the heating block 625.

[0028] The specific workflow is as follows: When working, first put the stainless steel into the device, then start the device, the rotating circular plate 412 rotates, driving the support plate 413 to rotate, and the centripetal force generated by the rotation causes the rotating shaft 415 to rotate, and further causes the rotating shaft 415 to slide on the bevel slide 414. Since the bevel slide 414 is wide at the tail and narrow at the head, the movement of the rotating shaft 415 is limited. When reaching the limit position, the rotating shaft 415 rotates by itself, thereby driving the triangular plate 416 to rotate, so that the grinding rubber block 417 scratches the outer surface of the stainless steel, thereby absorbing the mud and dust on the surface. When there is a protruding aluminum block on the surface, in order to avoid the film from breaking during coating, the rotation drives the telescopic spring 1 418 to deform, and the grinding iron block 419 impacts and grinds the protruding aluminum block, so that the surface of the stainless steel material is smooth. At the same time, water is contained in the water outlet housing 421. When the outer surface of the stainless steel material is polished, the impact generates vibration, which causes the telescopic spring 2 423 to deform, so that the sealing baffle 424 moves downward, so that the water flows out of the housing, cools the grinding iron block 419, and prevents the temperature from being too high during polishing, which causes the stainless steel material to be deformed due to heat. The cleaning brush 421 rotates. 25 also makes friction contact between the grinding iron block 419 and the grinding rubber block 417 to remove the stains on the surface and prevent the existence of impurities from affecting the grinding effect. Then, the servo motor 611 drives the lead screw 612 to rotate. The rotating lead screw 612 drives the moving block 613 to move up and down and rotates itself, thereby driving the stainless steel material to move and coat the stainless steel material. Through the rotation of the stainless steel material, the film on the coating rod 514 is attached to the outer surface of the stainless steel material. The gas is heated by the heating device 521 and flows out through the gas outlet 524 to press the pressing column 5 26 is heated, the gas flows and drives the pressing column 526 to rotate, the centrifugal force is generated to deform the telescopic spring three 527, and the pressing block 528 is driven to press and heat the film, squeeze out the air in the film, and make the film shrink due to the heat, so that the film can be precisely attached to the outer surface of the stainless steel material, and finally the support plate four 623 rotates along the rotating groove 622, so that the coating rod two 626 is fitted with the inner surface of the stainless steel material, and the heating effect of the heating block 625 makes the film and the stainless steel material fit closely, preventing the inner surface of the tubular stainless steel material from contacting impurities such as air.

[0029] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A stainless steel protective coating device, comprising a device bottom plate (1), characterized in that: The lower surface of the device bottom plate (1) is fixedly connected to a support stand (2); the upper surface of the device bottom plate (1) is fixedly connected to a protective shell (3) around the periphery; the inner surface of the protective shell (3) is fixedly connected to an external coating mechanism (5) at one end close to the device bottom plate (1); the inner surface of the protective shell (3) is fixedly connected to a grinding mechanism (4) at one end away from the device bottom plate (1); and the center of the upper surface of the device bottom plate (1) is fixedly connected to an internal coating mechanism (6); The polishing mechanism (4) comprises a rotating triangular prism mechanism (41), and a water outlet cooling mechanism (42) is fixedly connected to the inner surface of the rotating triangular prism mechanism (41); The rotating triangular column mechanism (41) comprises a hanging plate (411), one end of the hanging plate (411) away from the protective shell (3) is rotatably connected to a rotating circular plate (412), one end of the rotating circular plate (412) away from the hanging plate (411) is fixedly connected to a supporting plate (413), the inner surface of the supporting plate (413) is fixedly connected to an angled slideway (414), the surface of the angled slideway (414) is slidably connected to a rotating shaft (415), the outer surface of the rotating shaft (415) is fixedly connected to a triangular plate (416), the triangular end of the triangular plate (416) is fixedly connected to a polishing rubber block (417), the outer surface of the triangular plate (416) is fixedly connected to a telescopic spring (418), and the end of the telescopic spring (418) away from the triangular plate (416) is fixedly connected to a polishing iron block (419).

2. A stainless steel material protective coating device according to claim 1, characterized in that: The outer surface of the hanging plate 1 (411) is fixedly connected to the inner surface of the protective shell (3), and the circular surface of the rotating shaft 1 (415) is slidably connected to the inner surface of the supporting plate 1 (413).

3. A stainless steel material protective coating device according to claim 1, characterized in that: The water outlet cooling mechanism (42) comprises a water outlet housing (421), the inner surface of the water outlet housing (421) is fixedly connected to a fixing plate 1 (422), the top of the inner surface of the water outlet housing (421) is fixedly connected to a telescopic spring 2 (423), one end of the telescopic spring 2 (423) away from the water outlet housing (421) is fixedly connected to a sealing baffle (424), one end of the support plate 1 (413) close to the rotating circular plate (412) is fixedly connected to a cleaning brush (425), and the lower surface of the triangular plate (416) is fixedly connected to an impurity storage box (426).

4. A stainless steel material protective coating device according to claim 1, characterized in that: The external coating mechanism (5) comprises a rotating coating mechanism (51), and a pressing mechanism (52) is fixedly connected to the inner surface of the rotating coating mechanism (51).

5. A stainless steel material protective coating device according to claim 4, characterized in that: The rotary coating mechanism (51) comprises a second hanging plate (511), the end of the second hanging plate (511) away from the protective shell (3) is fixedly connected to a second support plate (512), the end of the second support plate (512) away from the second hanging plate (511) is fixedly connected to a third support plate (513), the surface of the third support plate (513) is fixedly and rotatably connected to a coating rod (514), and the support plate (513) is rotatably connected to a cutting plate (515).

6. A stainless steel material protective coating device according to claim 4, characterized in that: The pressing mechanism (52) comprises a heating device (521), one end of the heating device (521) away from the second support plate (512) is fixedly connected to an air pipe (522), one end of the air pipe (522) away from the heating device (521) is fixedly connected to an air outlet plate (523), the outer surface of the air outlet plate (523) is fixedly connected to an air outlet hole (524), one end of the support plate three (513) away from the second support plate (512) is fixedly connected to the second fixing plate (525), the upper surface of the second fixing plate (525) is rotatably connected to a rotating pressing column (526), ​​the outer surface of the rotating pressing column (526) is fixedly connected to a telescopic spring three (527), and the end of the telescopic spring three (527) away from the rotating pressing column (526) is fixedly connected to a pressing block (528).

7. The stainless steel material protective coating device according to claim 1, characterized in that: The internal film coating mechanism (6) comprises a lifting mechanism (61), and a film brushing mechanism (62) is fixedly connected to the outer surface of the lifting mechanism (61).

8. A stainless steel material protective coating device according to claim 7, characterized in that: The lifting mechanism (61) comprises a servo motor (611); one end of the device base plate (1) away from the servo motor (611) is rotatably connected to a lead screw (612); one end of the lead screw (612) away from the device base plate (1) is fixedly connected to a stop block (614); the outer surface of the lead screw (612) is rotatably connected to a moving block (613); and the upper surface of the moving block (613) is fixedly connected to an anti-fall plate (615).

9. A stainless steel material protective coating device according to claim 7, characterized in that: The film brushing mechanism (62) comprises a hollow cylinder (621), the outer surface of the hollow cylinder (621) is fixedly connected with a rotating groove (622), the inner surface of the rotating groove (622) is slidably connected with a support plate four (623), the end of the support plate four (623) away from the rotating groove (622) is fixedly connected with a fixed plate three (624), the outer surface of the support plate four (623) is fixedly connected with a heating block (625), the end of the heating block (625) away from the support plate four (623) is fixedly connected with a heating hole (627), and the surface of the fixed plate three (624) is rotatably connected with a coating rod two (626).