Hot roll equipment for prefabricating surface oxidation film

Abstract

The invention relates to the technical field of hot roller preparation, and discloses a prefabricated surface oxidation film hot roller device which comprises a device bottom plate, uniform rotating mechanisms are jointly arranged above the device bottom plate and in the device bottom plate, a roller surface pretreatment mechanism is arranged above the device bottom plate, and each uniform rotating mechanism comprises a fixed limiting frame. The bottom face of the fixed limiting frame is fixedly connected with the upper surface of the equipment bottom plate, a variable-frequency gear motor is arranged on the left side of the fixed limiting frame, and an adjusting sliding groove is formed in the upper surface of the equipment bottom plate. According to the equipment for prefabricating the surface oxidation film hot roller, the uniform rotating mechanism is arranged, so that the processing hot roller is placed between the fixed limiting frame and the movable limiting frame, and the processing hot rollers with different lengths are installed by adjusting the distance between the fixed limiting frame and the movable limiting frame; the variable-frequency gear motor drives the rotating disc to rotate so that the hot roller can rotate at a constant speed, the roller body can rotate evenly, and the effect that the thickness of an oxidation film is consistent is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hot rolling roller preparation, in particular to a preformed surface oxide film hot rolling roller equipment. BACKGROUND

[0002] The rolling product accounts for 50% of the steel output, and the roller is a tool for plastic deformation of the rolled metal and is the main consumable product of the steel plant. With the increase of steelmaking equipment and rolling equipment, and the continuous development of rolling process technology, the requirements for roller materials are becoming higher and higher. The hot rolling roller is the core component of hot rolling production.

[0003] According to the announcement number CN110257594A, a preformed surface oxide film hot rolling roller process and equipment are disclosed, which comprises a furnace body; a supporting mechanism arranged in the furnace body for placing the roller; a heating mechanism surrounding the roller and having a sealing cavity between the roller and the heating mechanism; a gas inlet pipeline in communication with the sealing cavity for conveying protective gas or cooling gas into the sealing cavity; and a reagent inlet pipeline comprising an oxidizing agent inlet pipe, a carbon additive inlet pipe and a catalyst inlet pipe, which are respectively in communication with the sealing cavity.

[0004] By preforming a thick and stable oxide film structure on the surface of the roller, the above technical scheme increases the friction coefficient, prevents slipping and sticking, and directly ensures the quality of the rolled material. On the other hand, it also plays a heat insulation role, reduces the surface temperature of the roller, reduces the influence of the cold and hot fatigue stress caused by the large temperature difference, prevents the base body from cracking, greatly improves the working efficiency, and ensures that the hot rolling work roller will not produce decarburization phenomenon during high temperature oxidation process. However, the hot rolling roller will form an oxide film on its surface during processing, and the oxide film has no precise control, the oxide film thickness deviation is large, the local over-thickness is easy to fall off and the over-thin is easy to wear, which leads to scratches and oxide skin adhesion on the surface of the rolled steel, affects the flatness and surface finish of the product, and the oxide film is loosely combined with the roller body base body. During the hot rolling process, the oxide film is easy to peel off under the action of high temperature, pressure and friction, the exposed roller body base body is quickly worn, and the service life of the hot rolling roller is reduced. SUMMARY

[0005] The present application aims to provide a preformed surface oxide film hot rolling roller equipment to solve the problems raised in the background art.

[0006] In order to solve the above technical problems, the present application provides the following technical scheme: a prefabricated surface oxide film hot rolling roller device, which comprises a device bottom plate, a uniform rotating mechanism arranged above the device bottom plate and inside the device bottom plate, a roller surface pretreatment mechanism arranged above the device bottom plate, the uniform rotating mechanism comprises a fixed limiting frame, the bottom surface of the fixed limiting frame is fixedly connected with the upper surface of the device bottom plate, a variable frequency speed reduction motor is arranged on the left side of the fixed limiting frame, an adjusting sliding groove is formed in the upper surface of the device bottom plate, a moving sliding block is slidably connected inside the adjusting sliding groove, a moving limiting frame is fixedly connected with the upper surface of the moving sliding block, the bottom surface of the moving limiting frame is in contact with the upper surface of the device bottom plate, a limiting groove is formed in the right side surface of the fixed limiting frame and the left side surface of the moving limiting frame, a rotating disc is rotatably connected inside each limiting groove, the left side surface of one of the rotating discs is fixedly connected with the output end of the variable frequency speed reduction motor, the right side surface of the other rotating disc is fixedly connected with a limiting disc, the left side surface of the limiting disc is in contact with the right side surface of the moving limiting frame, a pneumatic clamping assembly is fixedly connected with the side surface of each rotating disc which is close to the other rotating disc, a processing hot rolling roller is arranged inside the two pneumatic clamping assemblies, and the side surface of each rotating disc which is close to the other rotating disc is in contact with the left end of the processing hot rolling roller and the right end of the processing hot rolling roller, respectively. The roller surface pretreatment mechanism comprises two groups of supporting columns, the bottom end of each group of supporting columns is fixedly connected with the upper surface of the device bottom plate, the top end of the two groups of supporting columns is fixedly connected with a mounting frame, the inner wall of the mounting frame is fixedly connected with a guide sliding rail, the inner wall of the guide sliding rail is fixedly connected with a fixed tooth belt, an electric sliding block is slidably connected inside the guide sliding rail, a rotating gear is fixedly connected with the output end of the electric sliding block, the rotating gear is meshed with the fixed tooth belt, an extension arm is fixedly connected with one side surface and the other side surface of the electric sliding block, the upper surface of each extension arm is in contact with the bottom surface of the mounting frame, a micro air pump is fixedly connected with the bottom end of each extension arm, a moving ring frame is fixedly connected with the side surface of the two micro air pumps which are close to each other, a connecting pipe is fixedly connected with the bottom surface of the electric sliding block, the bottom end of the connecting pipe penetrates through the moving ring frame and is fixedly connected with a sand blasting nozzle, the outer surface of the sand blasting nozzle is fixedly connected with the inner wall of the moving ring frame, the output end of each micro air pump penetrates through the moving ring frame and is fixedly connected with equally spaced spray nozzles, the outer surface of each group of spray nozzles is fixedly connected with the inner wall of the moving ring frame, and a micro dust collector is fixedly connected with the two side surfaces of the moving ring frame.

[0007] Preferably, the outer surface of the variable frequency speed reduction motor is fixedly connected with a supporting seat, and the bottom surface of the supporting seat is fixedly connected with the upper surface of the device bottom plate.

[0008] Preferably, the bottom surface of the equipment base plate is fixedly connected with two groups of supporting legs, and the bottom end of each group of the supporting legs is fixedly connected with a supporting base plate.

[0009] Preferably, the output end of the variable-frequency speed reduction motor is fixedly connected with a stabilizing bearing, and the outer ring of the stabilizing bearing is fixedly connected with the left side surface of the fixed limiting frame.

[0010] Preferably, the bottom surface of the moving sliding block is fixedly connected with a limiting base plate, and the upper surface of the limiting base plate is in contact with the bottom surface of the equipment base plate.

[0011] Preferably, the upper surface of the mounting frame is fixedly connected with a storage cylinder, the output end of the storage cylinder is fixedly connected with a high-pressure air compressor, and the bottom surface of the high-pressure air compressor is fixedly connected with the upper surface of the storage cylinder.

[0012] Preferably, the output end of the high-pressure air compressor is fixedly connected with an extension fixed pipe, the output end of the extension fixed pipe is fixedly connected with an extension hose, and the output end of the extension hose is fixedly connected with the connecting pipe through the electric sliding block.

[0013] Preferably, the upper surface of the storage cylinder is fixedly connected with a feeding pipe, and the inside of the feeding pipe is clamped with a switch plug.

[0014] Preferably, the outer surface of the extension fixed pipe is fixedly connected with a reinforcing rod, and the end of the reinforcing rod away from the extension fixed pipe is fixedly connected with the outer surface of the storage cylinder.

[0015] Preferably, the outer surface of the extension hose is fixedly connected with a reinforcing ring, and the bottom surface of the reinforcing ring is fixedly connected with the upper surface of the electric sliding block.

[0016] Compared with the prior art, the present application has the following advantages: Firstly, the present application is provided with a uniform rotating mechanism, which can utilize the fixed limiting frame on the equipment base plate to enable the processing hot roller to be placed between the fixed limiting frame and the moving limiting frame. Since the moving sliding block on the bottom surface of the moving limiting frame slides in the adjusting sliding groove on the equipment base plate, the distance between the fixed limiting frame and the moving limiting frame can be adjusted, so that the processing hot roller of different lengths can be positioned and installed. The rotating disc provided in the limiting groove and the pneumatic clamping assembly fixed on one side of the rotating disc can facilitate clamping the processing hot roller. The variable-frequency speed reduction motor fixed on the equipment base plate can drive the rotating disc to rotate, so that the processing hot roller can be stably and uniformly rotated, the roller surface can be uniformly oxidized, local oxidation unevenness can be avoided, the roller body can be uniformly rotated, and the thickness of the oxidation film can be uniform.

[0017] Second, the present application is provided with a roller surface pretreatment mechanism, can be installed with two groups of support column to support the mounting frame on the upper surface of the equipment bottom plate, can be installed to the inside of the mounting frame, and the fixed tooth belt is fixed on the inner wall of the guide rail, the power of the motor in the electric sliding block is controlled, the rotating gear is reversed, the rotating gear is engaged with the fixed tooth belt in the guide rail, the electric sliding block is moved along the guide rail, the extension arm is fixed on both sides of the electric sliding block, the moving ring frame is moved along the outer surface of the processing hot rolling roller, the micro air pump, the sand blasting nozzle and the micro vacuum cleaner are fixed on the moving ring frame, the high pressure gas is delivered to the air nozzle by the micro air pump, the dust on the outer surface of the rotating processing hot rolling roller is blown and cleaned by the air nozzle, the dust is sucked and treated by the two micro vacuum cleaners, the high pressure sand blasting medium is delivered by other structures, the sand blasting nozzle connected by the connecting pipe sprays sand on the outer surface of the processing hot rolling roller, the combination of the oxide film and the matrix is improved, and the roughness of the pretreated roller surface is uniform. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the perspective view of the guide rail of the application; Figure 2 It is the bottom view of the equipment bottom plate of the application; Figure 3 It is the perspective view of the storage cylinder of the application; Figure 4 It is the rear perspective view of the processing hot rolling roller of the application; Figure 5 It is the perspective view of the moving limiting frame of the application; Figure 6 It is the perspective view of the electric sliding block of the application; Figure 7 It is the bottom view of the moving ring frame of the application.

[0019] Wherein: 1, the equipment bottom plate; 2, uniform rotating mechanism; 201, variable frequency speed reducer motor; 202, fixed limit frame; 203, adjustment sliding groove; 204, rotating disc; 205, limit disc; 206, pneumatic clamping assembly; 207, handle hot rolling roll; 208, moving limit frame; 209, limit slot; 210, moving sliding block; 3, roll surface pretreatment mechanism; 301, support column; 302, mounting frame; 303, guide sliding rail; 304, fixed toothed belt; 305, electric sliding block; 306, rotating gear; 307, extension arm; 308, micro air pump; 309, moving ring stand; 310, connecting pipe; 311, sand blasting nozzle; 312, air jet nozzle; 313, micro vacuum cleaner; 4, support leg; 5, support base; 6, stabilizing bearing; 7, limit bottom plate; 8, reinforcing ring; 9, support seat; 10, switch plug; 11, storage cylinder; 12, high-pressure air compressor; 13, extension fixed pipe; 14, extension hose; 15, reinforcing rod; 16, feeding pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0021] Embodiment one Please refer to Figures 1-7, including the device base plate 1, the upper surface of the device base plate 1 and the inside of the device base plate 1 are provided with a uniform rotation mechanism 2, the upper surface of the device base plate 1 is provided with a roll surface pretreatment mechanism 3, the uniform rotation mechanism 2 comprises a fixed limiting frame 202, the bottom surface of the fixed limiting frame 202 is fixedly connected with the upper surface of the device base plate 1, the left side of the fixed limiting frame 202 is provided with a variable frequency speed reducer motor 201, the upper surface of the device base plate 1 is provided with an adjusting sliding groove 203, the inside of the adjusting sliding groove 203 is slidably connected with a moving sliding block 210, the upper surface of the moving sliding block 210 is fixedly connected with a moving limiting frame 208, the bottom surface of the moving limiting frame 208 is in contact with the upper surface of the device base plate 1, the right side surface of the fixed limiting frame 202 and the left side surface of the moving limiting frame 208 are both provided with a limiting groove 209, the inside of each limiting groove 209 is rotatably connected with a rotating disc 204, the left side surface of one of the rotating discs 204 is fixedly connected with the output end of the variable frequency speed reducer motor 201, the right side surface of the other rotating disc 204 is fixedly connected with a limiting disc 205, the left side surface of the limiting disc 205 is in contact with the right side surface of the moving limiting frame 208, the side surface of the two rotating discs 204 which are close to each other is fixedly connected with a pneumatic clamping assembly 206, the pneumatic clamping assembly 206 is a kind of assembly containing centering clamp, to automatically centering through "pneumatic clamping cylinder", ensure the assembly of roll body rotation coaxiality, the inside of the two pneumatic clamping assemblies 206 is commonly provided with a processing hot rolling roller 207, the side surface of the two rotating discs 204 which are close to each other is respectively in contact with the left end of the processing hot rolling roller 207 and the right end of the processing hot rolling roller 207, by setting the uniform rotation mechanism 2, the fixed limiting frame 202 fixed on the device base plate 1 can be used to place the processing hot rolling roller 207 between the fixed limiting frame 202 and the moving limiting frame 208, since the moving sliding block 210 on the bottom surface of the moving limiting frame 208 slides in the adjusting sliding groove 203 opened on the device base plate 1, the distance between the fixed limiting frame 202 and the moving limiting frame 208 can be adjusted, so that the processing hot rolling roller 207 of different lengths can be positioned and installed, by the rotating disc 204 provided in the limiting groove 209, and the pneumatic clamping assembly 206 is fixed on one side of the rotating disc 204, the processing hot rolling roller 207 can be clamped conveniently, by the variable frequency speed reducer motor 201 fixed on the device base plate 1, the rotating disc 204 can be driven to rotate, so that the processing hot rolling roller 207 can be stably rotated at a constant speed, so that each part of the roll surface uniformly receives oxidation treatment, avoids local uneven oxidation, realizes uniform rotation of the roll body, and ensures uniform thickness of the oxidation film.

[0022] The outer surface of the variable frequency speed reducer motor 201 is fixedly connected with a support seat 9, the bottom surface of the support seat 9 is fixedly connected with the upper surface of the device base plate 1, by using the support seat 9, the variable frequency speed reducer motor 201 can be stably fixed on the upper surface of the device base plate 1, so as to improve the output power stability of the variable frequency speed reducer motor 201.

[0023] Two sets of support legs 4 are fixedly connected to the bottom surface of the equipment base plate 1. Each set of support legs 4 is fixedly connected to a support chassis 5 at its bottom end. The two sets of support legs 4 and the support chassis 5 form the support structure of the device, thereby enabling the device to be stably supported in the required position.

[0024] A stabilizing bearing 6 is fixedly connected to the output end of the variable frequency geared motor 201. The outer ring of the stabilizing bearing 6 is fixedly connected to the left side of the fixed limit frame 202. The stabilizing bearing 6 is used to improve the stability of the output end of the variable frequency geared motor 201, thereby enabling the hot rolling roll 207 to rotate stably and uniformly.

[0025] The bottom surface of the movable slider 210 is fixedly connected to the limiting base plate 7. The upper surface of the limiting base plate 7 is in contact with the bottom surface of the equipment base plate 1. The limiting base plate 7 is used to limit the movable slider 210 sliding in the adjustment groove 203, thereby improving the movement stability of the movable limiting frame 208.

[0026] The specific implementation of this embodiment is as follows: In use, firstly, connect the electric equipment such as the variable frequency reduction motor 201 and the solenoid valve of the pneumatic clamping assembly 206 to the power supply. When it is necessary to use this hot rolling mill equipment to pre-form a surface oxide film on the surface of the hot rolling mill 207, firstly, the support structure of the device is formed by two sets of support legs 4 and support base 5, so that the device can be stably supported in the required position. Using the fixed limiting frame 202 fixed on the equipment base plate 1, the hot rolling mill 207 can be placed between the fixed limiting frame 202 and the movable limiting frame 208. Since the movable slider 210 on the bottom surface of the movable limiting frame 208 slides in the adjustment groove 203 opened on the equipment base plate 1, the limiting base plate 7 can limit the movable slider 210 sliding in the adjustment groove 203, thereby improving the movement stability of the movable limiting frame 208. The distance between the fixed limiting frame 202 and the movable limiting frame 208 can be adjusted to position and install hot-rolled rollers 207 of different lengths. The rotating disk 204 set in the limiting groove 209, and the pneumatic clamping assembly 206 fixed on one side of the rotating disk 204, facilitates the clamping of the hot-rolled rollers 207. The variable frequency reduction motor 201 fixed on the equipment base plate 1 and the support base 9 can stably fix the variable frequency reduction motor 201 on the upper surface of the equipment base plate 1, thereby improving the output power stability of the variable frequency reduction motor 201. The stabilizing bearing 6 is used to improve the output end stability of the variable frequency reduction motor 201, so as to drive the rotating disk 204 to rotate, and stably rotate the hot-rolled rollers 207 at a uniform speed, so that all parts of the roller surface are uniformly oxidized and avoid uneven local oxidation.

[0027] Example 2 Please see Figures 1-7The roller surface pretreatment mechanism 3 includes two sets of support columns 301. The bottom end of each set of support columns 301 is fixedly connected to the upper surface of the equipment base plate 1. The top ends of the two sets of support columns 301 are fixedly connected to a mounting frame 302. A guide rail 303 is fixedly connected to the inner wall of the mounting frame 302. A fixed toothed belt 304 is fixedly connected to the inner wall of the guide rail 303. An electric slider 305 is slidably connected inside the guide rail 303. A rotating gear 306 is fixedly connected to the output end of the electric slider 305. The rotating gear 306 meshes with the fixed toothed belt 304. An extension arm 307 is fixedly connected to one side and the other side of the electric slider 305. The upper surface of each extension arm 307 is fixedly connected to the bottom of the mounting frame 302. Face-to-face contact, each extension arm 307 has a micro air pump 308 fixedly connected to its bottom end. The micro air pump 308 is a small-sized gas delivery device that uses gas as its working medium and is mainly used for gas sampling, gas circulation, vacuum adsorption, vacuum pressure holding, evacuation, inflation, and pressurization. Two micro air pumps 308 are fixedly connected to a movable ring frame 309 on their adjacent sides. A connecting pipe 310 is fixedly connected to the bottom surface of the electric slider 305. The bottom end of the connecting pipe 310 passes through the movable ring frame 309 and is fixedly connected to a sandblasting nozzle 311. The outer surface of the sandblasting nozzle 311 is fixedly connected to the inner wall of the movable ring frame 309. The output end of each micro air pump 308 passes through the movable ring frame 309 and is fixedly connected to equidistant outlets. The air nozzles 312 are arranged in rows, and the outer surface of each set of air nozzles 312 is fixedly connected to the inner wall of the movable ring frame 309. Miniature vacuum cleaners 313 are fixedly connected to both sides of the movable ring frame 309. The miniature vacuum cleaners 313 are small cleaning appliances that use an electric motor to drive a fan to generate negative pressure for dust removal. By setting up a roller surface pretreatment mechanism 3, two sets of support columns 301 can be used to support the mounting frame 302 on the upper surface of the equipment base plate 1, allowing the guide rail 303 to be installed inside the mounting frame 302. A fixing toothed belt 304 is fixed to the inner wall of the guide rail 303. By controlling the power supply of the motor inside the electric slider 305, the rotating gear 306 can be rotated forward and backward, thereby utilizing the rotation gear 306 and the guide rail... The fixed toothed belt 304 inside the slide rail 303 engages to facilitate the movement of the electric slider 305 along the guide slide rail 303. Extension arms 307 are fixed on both sides of the electric slider 305, allowing the movable ring frame 309, fixed to the extension arms 307, to move along the outer surface of the hot-rolled processing roller 207. A miniature air pump 308, a sandblasting nozzle 311, and a miniature vacuum cleaner 313 are fixed on the movable ring frame 309. The miniature air pump 308 delivers high-pressure gas to the air nozzle 312, which blows away debris and dust from the rotating hot-rolled processing roller 207's outer surface. The two miniature vacuum cleaners 313 absorb the generated dust. High-pressure sandblasting media is delivered using other structures.The sandblasting nozzle 311, connected by the connecting pipe 310, is used to blast the outer surface of the hot-rolled roll 207, thereby improving the adhesion between the oxide film and the substrate and ensuring uniform surface roughness after pretreatment.

[0028] A storage cylinder 11 is fixedly connected to the upper surface of the mounting frame 302. The output end of the storage cylinder 11 is fixedly connected to a high-pressure air compressor 12. The high-pressure air compressor 12 is a machine that compresses air in a free state to compressed air with a gauge pressure of more than 10MPa. The bottom surface of the high-pressure air compressor 12 is fixedly connected to the upper surface of the storage cylinder 11. The power provided by the high-pressure air compressor 12 can pressurize and transport the sandblasting medium of white corundum sand in the storage cylinder 11 to the outside, so as to facilitate sandblasting of the outer surface of the hot rolling roll 207.

[0029] The output end of the high-pressure air compressor 12 is fixedly connected to an extension pipe 13, and the output end of the extension pipe 13 is fixedly connected to an extension hose 14. The output end of the extension hose 14 passes through the electric slider 305 and is fixedly connected to the top end of the connecting pipe 310. Through the extension pipe 13, the output end of the high-pressure air compressor 12 is extended to a certain position, and through the extension hose 14, the sandblasting medium of white corundum sand can be conveniently transported to the appropriate position.

[0030] The upper surface of the storage cylinder 11 is fixedly connected to the feeding pipe 16. The inside of the feeding pipe 16 is fitted with a switch plug 10. By manually opening the switch plug 10 inside the feeding pipe 16, the sandblasting medium of white corundum sand can be conveniently transported into the storage cylinder 11 through the feeding pipe 16, thereby facilitating the continuous use of the hot rolling mill equipment to sandblast the outer surface of the hot rolling mill 207.

[0031] A reinforcing rod 15 is fixedly connected to the outer surface of the extension fixing tube 13. The end of the reinforcing rod 15 away from the extension fixing tube 13 is fixedly connected to the outer surface of the storage cylinder 11. The reinforcing rod 15 is fixed to the outer surface of the extension fixing tube 13 and the outer surface of the storage cylinder 11 to improve the extension support stability of the extension fixing tube 13.

[0032] A reinforcing ring 8 is fixedly connected to the outer surface of the extension hose 14. The bottom surface of the reinforcing ring 8 is fixedly connected to the upper surface of the electric slider 305. The reinforcing ring 8 is fixed at the connection between the extension hose 14 and the electric slider 305, thereby improving the connection stability between the extension hose 14 and the electric slider 305.

[0033] The specific implementation method of this embodiment is as follows: In use, first connect the electric slider 305, micro air pump 308, micro vacuum cleaner 313 and high-pressure air compressor 12 to the power supply. When it is necessary to use the hot rolling mill equipment to process the pre-formed surface oxide film on the surface of the hot rolling mill 207, first manually open the switch plug 10 in the feeding pipe 16 to facilitate the delivery of the white corundum sand blasting medium to the storage cylinder 11 through the feeding pipe 16, thereby facilitating the continuous use of the hot rolling mill equipment to blast the outer surface of the hot rolling mill 207. The mounting frame 302 is supported on the upper surface of the equipment base plate 1 by using two sets of support columns 301. The guide rail 303 is installed inside the mounting bracket 302. A fixed toothed belt 304 is fixed to the inner wall of the guide rail 303. By controlling the power supply of the motor inside the electric slider 305, the rotating gear 306 can be rotated forward and backward. The rotating gear 306 can mesh with the fixed toothed belt 304 inside the guide rail 303, so that the electric slider 305 can move along the guide rail 303. Extension arms 307 are fixed on both sides of the electric slider 305, so that the movable ring frame 309 fixed by the extension arms 307 can move along the outer surface of the hot rolling roll 207. A miniature air pump 308, a sandblasting nozzle 311, and a miniature vacuum cleaner 313 are fixed on the 309. The miniature air pump 308 delivers high-pressure gas to the nozzle 312, which blows away debris and dust from the outer surface of the rotating hot-rolled roller 207. The two miniature vacuum cleaners 313 absorb the generated dust. The high-pressure air compressor 12 provides power to pressurize and transport the white corundum sand blasting medium in the storage cylinder 11 to the outside, facilitating sandblasting of the outer surface of the hot-rolled roller 207. The output end of the high-pressure air compressor 12 is extended to the fixed pipe 13. At a certain position, a reinforcing rod 15 is fixed to the outer surface of the extension fixing tube 13 and the outer surface of the storage cylinder 11 to improve the extension support stability of the extension fixing tube 13. The sandblasting medium of white corundum sand can be conveniently transported to the appropriate position through the extension hose 14. The reinforcing ring 8 is fixed at the connection between the extension hose 14 and the electric slider 305 to improve the connection stability between the extension hose 14 and the electric slider 305. The sandblasting nozzle 311 connected by the connecting pipe 310 can stably blast the outer surface of the hot rolling roll 207 to improve the bonding force between the oxide film and the substrate. The surface roughness of the roll is uniform after pretreatment.

[0034] The working principle of this invention is as follows: In use, the variable frequency reduction motor 201 and the solenoid valve of the pneumatic clamping assembly 206, along with other electric devices, are first connected to the power supply. When the hot rolling mill equipment is needed to pre-form a surface oxide film on the surface of the hot rolling mill 207, the support structure of the device is first formed by two sets of support legs 4 and a support base 5, thereby enabling the device to be stably supported in the required position. The fixed limiting frame 202 fixed on the equipment base plate 1 allows the hot rolling mill 207 to be placed between the fixed limiting frame 202 and the movable limiting frame 208. Since the movable slider 210 on the bottom surface of the movable limiting frame 208 slides within the adjustment groove 203 opened on the equipment base plate 1, the limiting base plate 7 allows the adjustment groove 203 to be adjusted. The sliding slider 210 within the 03 is used for limiting, thereby improving the movement stability of the moving limit frame 208. This allows adjustment of the distance between the fixed limit frame 202 and the moving limit frame 208, enabling the positioning and installation of hot-rolled rollers 207 of different lengths. A rotating disk 204 is provided within the limiting groove 209, and a pneumatic clamping assembly 206 is fixed to one side of the rotating disk 204 to facilitate clamping of the hot-rolled rollers 207. A variable frequency geared motor 201 fixed on the equipment base plate 1, using a support base 9, allows the variable frequency geared motor 201 to be stably fixed to the upper surface of the equipment base plate 1, thereby improving the output power stability of the variable frequency geared motor 201. A stabilizing bearing 6 is used to enhance the stability of the variable frequency geared motor. The output stability of 201 is used to drive the rotating disk 204 to rotate, so as to stably rotate the hot rolling roll 207 at a uniform speed, so that all parts of the roll surface are evenly oxidized and to avoid uneven local oxidation. When using it, first connect the electric slider 305, the micro air pump 308, the micro vacuum cleaner 313 and the high-pressure air compressor 12 to the power supply. When it is necessary to use the hot rolling roll equipment to pre-form a surface oxide film on the surface of the hot rolling roll 207, first manually open the switch plug 10 in the feed pipe 16 to facilitate the delivery of the white corundum sand blasting medium to the storage cylinder 11 through the feed pipe 16, so as to facilitate the continuous use of the hot rolling roll equipment to blast the outer surface of the hot rolling roll 207. The mounting frame 30 is used with two sets of support columns 301 to support the mounting frame 30 2. Supported on the upper surface of the equipment base plate 1, the guide rail 303 can be installed inside the mounting bracket 302. A fixed toothed belt 304 is fixed to the inner wall of the guide rail 303. By controlling the power supply of the motor inside the electric slider 305, the rotating gear 306 can be rotated forward and backward. The rotating gear 306 can mesh with the fixed toothed belt 304 inside the guide rail 303, so that the electric slider 305 can move along the guide rail 303. Extension arms 307 are fixed on both sides of the electric slider 305, so that the moving ring frame 309 fixed by the extension arms 307 can move along the outer surface of the hot rolling roll 207. A micro air pump 308, a sandblasting nozzle 311, and a micro vacuum cleaner 313 are fixed on the moving ring frame 309.A micro air pump 308 delivers high-pressure gas to the nozzle 312, which then blows away debris and dust from the outer surface of the rotating hot-rolled roller 207. Two micro vacuum cleaners 313 absorb the generated dust. Power from the high-pressure air compressor 12 pressurizes and delivers the white corundum sand blasting medium from the storage cylinder 11 to the outside, facilitating sandblasting of the outer surface of the hot-rolled roller 207. The output end of the high-pressure air compressor 12 is extended to a certain position via the extension and fixing pipe 13, and secured with a reinforcing rod 15. The extension support stability of the extension fixing tube 13 is improved by extending the outer surface of the extension fixing tube 13 and the outer surface of the storage cylinder 11. The extension hose 14 facilitates the delivery of the white corundum sand blasting medium to the appropriate position. A reinforcing ring 8 is fixed at the connection between the extension hose 14 and the electric slider 305, thereby improving the connection stability between the extension hose 14 and the electric slider 305. The blasting nozzle 311 connected by the connecting pipe 310 stably blasts the outer surface of the hot-rolled roll 207, enhancing the adhesion between the oxide film and the substrate. After pretreatment, the roll surface roughness is uniform.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pre-formed surface oxide film hot rolling mill, comprising a base plate (1), characterized in that: A uniform rotation mechanism (2) is provided both above and inside the equipment base plate (1). A roller surface pretreatment mechanism (3) is provided above the equipment base plate (1). The uniform rotation mechanism (2) includes a fixed limiting frame (202). The bottom surface of the fixed limiting frame (202) is fixedly connected to the upper surface of the equipment base plate (1). A variable frequency reduction motor (201) is provided on the left side of the fixed limiting frame (202). An adjustment slide groove (203) is provided on the upper surface of the equipment base plate (1). A movable slider (210) is slidably connected inside the adjustment slide groove (203). A movable limiting frame (208) is fixedly connected to the upper surface of the movable slider (210). The bottom surface of the movable limiting frame (208) is in contact with the upper surface of the equipment base plate (1). The right side of the fixed limiting frame (202) and the movable slider (208) are also connected to the roller surface pretreatment mechanism (3). Each of the moving limit frame (208) has a limit groove (209) on its left side. Each limit groove (209) is rotatably connected to a rotating disk (204). The left side of one of the rotating disks (204) is fixedly connected to the output end of the variable frequency reduction motor (201). The right side of the other rotating disk (204) is fixedly connected to a limit disk (205). The left side of the limit disk (205) is in contact with the right side of the moving limit frame (208). Pneumatic clamping components (206) are fixedly connected to the sides of the two rotating disks (204) that are close to each other. The two pneumatic clamping components (206) are jointly provided with a hot-rolling roller (207) inside. The sides of the two rotating disks (204) that are close to each other are in contact with the left end and the right end of the hot-rolling roller (207) respectively. The roller surface pretreatment mechanism (3) includes two sets of support columns (301). The bottom end of each set of support columns (301) is fixedly connected to the upper surface of the equipment base plate (1). The top ends of the two sets of support columns (301) are fixedly connected to a mounting frame (302). The inner wall of the mounting frame (302) is fixedly connected to a guide rail (303). The inner wall of the guide rail (303) is fixedly connected to a fixed toothed belt (304). An electric slider (305) is slidably connected inside the guide rail (303). A rotating gear (306) is fixedly connected to the output end of the electric slider (305). The rotating gear (306) meshes with the fixed toothed belt (304). An extension arm (307) is fixedly connected to one side and the other side of the electric slider (305). The upper surface of each extension arm (307) is connected to the mounting frame. The bottom surfaces of (302) are in contact with each other, and each of the extension arms (307) is fixedly connected to a micro air pump (308) at its bottom end. The two micro air pumps (308) are fixedly connected to a moving ring frame (309) on their side surfaces that are close to each other. The bottom surface of the electric slider (305) is fixedly connected to a connecting pipe (310). The bottom end of the connecting pipe (310) passes through the moving ring frame (309) and is fixedly connected to a sandblasting nozzle (311). The outer surface of the sandblasting nozzle (311) is fixedly connected to the inner wall of the moving ring frame (309). The output end of each micro air pump (308) passes through the moving ring frame (309) and is fixedly connected to an equally spaced jet nozzle (312). The outer surface of each group of jet nozzles (312) is fixedly connected to the inner wall of the moving ring frame (309). The two sides of the moving ring frame (309) are fixedly connected to a micro vacuum cleaner (313).

2. The pre-formed surface oxide film hot rolling mill equipment according to claim 1, characterized in that: The outer surface of the variable frequency speed reduction motor (201) is fixedly connected to a support base (9), and the bottom surface of the support base (9) is fixedly connected to the upper surface of the equipment base plate (1).

3. The pre-formed surface oxide film hot rolling mill equipment according to claim 1, characterized in that: The bottom surface of the equipment base plate (1) is fixedly connected to two sets of support legs (4), and the bottom end of each set of support legs (4) is fixedly connected to a support chassis (5).

4. The pre-formed surface oxide film hot rolling mill equipment according to claim 1, characterized in that: The output end of the variable frequency geared motor (201) is fixedly connected to a stabilizing bearing (6), and the outer ring of the stabilizing bearing (6) is fixedly connected to the left side of the fixed limiting frame (202).

5. The pre-formed surface oxide film hot rolling mill equipment according to claim 1, characterized in that: The bottom surface of the movable slider (210) is fixedly connected to a limiting base plate (7), and the upper surface of the limiting base plate (7) is in contact with the bottom surface of the equipment base plate (1).

6. The pre-formed surface oxide film hot rolling mill equipment according to claim 1, characterized in that: The upper surface of the mounting bracket (302) is fixedly connected to a storage cylinder (11), and the output end of the storage cylinder (11) is fixedly connected to a high-pressure air compressor (12). The bottom surface of the high-pressure air compressor (12) is fixedly connected to the upper surface of the storage cylinder (11).

7. The pre-formed surface oxide film hot rolling mill equipment according to claim 6, characterized in that: The output end of the high-pressure air compressor (12) is fixedly connected to an extension fixed pipe (13), and the output end of the extension fixed pipe (13) is fixedly connected to an extension hose (14). The output end of the extension hose (14) passes through the electric slider (305) and is fixedly connected to the top end of the connecting pipe (310).

8. The pre-formed surface oxide film hot rolling mill equipment according to claim 6, characterized in that: The upper surface of the storage cylinder (11) is fixedly connected to a feeding pipe (16), and a switch plug (10) is snapped into the inside of the feeding pipe (16).

9. The pre-formed surface oxide film hot rolling mill equipment according to claim 7, characterized in that: A reinforcing rod (15) is fixedly connected to the outer surface of the extension fixing tube (13), and one end of the reinforcing rod (15) away from the extension fixing tube (13) is fixedly connected to the outer surface of the storage cylinder (11).

10. The pre-formed surface oxide film hot rolling mill equipment according to claim 7, characterized in that: A reinforcing ring (8) is fixedly connected to the outer surface of the extension hose (14), and the bottom surface of the reinforcing ring (8) is fixedly connected to the upper surface of the electric slider (305).

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