High-speed cooling device for cold-rolled plate surface

Abstract

The high-speed cooling device comprises a cooling box, two first hydraulic cylinders are symmetrically installed on one side of the top end in the cooling box, an oil coating roller is installed between the two first hydraulic cylinders, second hydraulic cylinders are arranged on one sides of the first hydraulic cylinders, and a warm water tank is connected between the two second hydraulic cylinders. The cold-rolled sheet cooling device has the beneficial effects that by designing the water mist generator and the nozzles, when water is atomized into tiny water drops (namely water mist), the water drops are evaporated in the air, surrounding heat can be absorbed in the evaporation process, then rapid cooling of a cold-rolled sheet is achieved, and the problem of intergranular corrosion of the cold-rolled sheet is avoided; meanwhile, in cooperation with the design of the warm water tank and the cold water tank, the overheated cold-rolled sheet can be effectively prevented from making direct contact with water with the low temperature, and the situation that the cold-rolled sheet cracks is avoided; in addition, the cold-rolled sheet is quickly air-dried up and down in cooperation with an air blower, water can be effectively prevented from being retained on the cold-rolled sheet for a long time, and follow-up use of the cold-rolled sheet is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of cold-rolled plate surface cooling devices, and in particular to a cold-rolled plate surface high-speed cooling device. Background Art

[0002] Cold-rolled sheet is a product made of hot-rolled coil and rolled below the recrystallization temperature at room temperature. It is mostly used in automobile manufacturing, electrical products, etc. The general minimum thickness is 0.2-4mm and the width is 600-2000mm. Cold-rolled sheet has good surface quality, high smoothness, good cold bending and welding performance, and certain stamping performance.

[0003] The existing high-speed cooling device for cold-rolled plate surface realizes water cooling of cold-rolled plate by water-cooled convection heat exchange. Although the above method can realize the cooling effect of the device on the cold-rolled plate, when cooling the cold-rolled plate, the cooling speed of the device is slow, and the residence time of the cold-rolled plate during the sensitization period is long, resulting in the occurrence of intergranular corrosion, which in turn causes the device to affect the production quality of the cold-rolled plate; at the same time, when the existing high-speed cooling device for cold-rolled plate surface cools the cold-rolled plate by water, when the temperature of the cooling water is too low, the coarse grain range at the edge of the cold-rolled plate and the mixed grain range of the full thickness are expanded. In the subsequent cold rolling process, this mixed crystal structure is prone to cracking during the deformation process due to the difference in plasticity between it and the matrix structure, which in turn causes edge cracks in the produced cold-rolled plate; in addition, when the existing high-speed cooling device for cold-rolled plate surface cools the cold-rolled plate by water cooling, the liquid remaining on the surface of the cold-rolled plate is directly output from the device without being treated. When the cold-rolled plate is placed for a long time, the moisture is not dried for a long time, which will cause the surface of the cold-rolled plate to rust, affecting the subsequent use of the cold-rolled plate. Summary of the invention

[0004] The purpose of the present invention is to provide a high-speed cooling device for cold-rolled plate surface in order to solve the above-mentioned problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A high-speed cooling device for cold-rolled plate surface, comprising a cooling box, two hydraulic cylinders one are symmetrically installed on one side of the top of the cooling box, an oiling roller is installed between the two hydraulic cylinders one, a hydraulic cylinder two is arranged on one side of the hydraulic cylinder one, a warm water tank is connected between the two hydraulic cylinders two, a hydraulic cylinder three is fixed on one side of the hydraulic cylinder two, a cold water tank is arranged between the two hydraulic cylinders three, the water outlet ends of the warm water tank and the cold water tank are provided with pressurized nozzles, a hydraulic cylinder four is installed on one side of the hydraulic cylinder three, a cold air blower is arranged between the hydraulic cylinder four, a hydraulic cylinder five is arranged on one side of the hydraulic cylinder four, a cleaning roller is connected between the two hydraulic cylinders five, eight water mist generators are symmetrically installed on both side walls inside the cooling box, the output ends of the water mist generators are connected to nozzles, a discharge box is installed on one side wall of the cooling box, and two blowers are symmetrically installed on the upper and lower sides of the discharge box.

[0007] Furthermore, the oiling roller, the warm water tank, the cold water tank, the cold air blower and the cleaning roller are sequentially arranged at the lower end of the cooling box, and motors are installed on one end of the oiling roller and the cleaning roller on one side wall of the cooling box, and a feed box is fixed on the side wall of the cooling box opposite to the discharge box, and a slide rail is arranged in the middle of the bottom end of the feed box, and two electric sliders are installed on the slide rail, and an electric telescopic rod is arranged on one side of the top end of the electric slider, and the telescopic end of the electric telescopic rod is connected to a pressure plate, a drain plate is installed at the bottom end of the cooling box, and a water collecting bucket is arranged at the lower end of the drain plate in the cooling box.

[0008] By adopting the above technical solution, the cooling box realizes water cooling and air cooling of the cold-rolled plate surface through convection heat exchange, which can effectively realize the rapid cooling of the cold-rolled plate surface by the device.

[0009] Furthermore, four legs are provided at the four corners of the bottom end of the cooling box, the bottom ends of the legs are connected to a base plate, four self-locking universal wheels are installed at the four corners of the bottom end of the base plate, electric support feet are arranged on the inner sides of the self-locking universal wheels, and grooves are provided on one side wall of the discharge box and the input box.

[0010] By adopting the above technical solution, the supporting legs realize the supporting function for the cooling box, making it convenient for the water collecting bucket to discharge water from the bottom.

[0011] Furthermore, the oiling roller, the warm water tank, the cold water tank, the cold air blower and the cleaning roller are all symmetrically distributed up and down, and the motor is key-connected to the oiling roller and the cleaning roller.

[0012] By adopting the above-mentioned technical scheme, the oiling roller, the warm water box, the cold water box, the cold air blower and the cleaning roller in the cooling box can realize the simultaneous cooling and cleaning of both sides of the cold-rolled plate surface by the device, thereby ensuring the cooling effect of the device on the cold-rolled plate surface. The motor drives the oiling roller and the cleaning roller to rotate, thereby realizing the rotation of the oiling roller and the cleaning roller on the cold-rolled plate surface.

[0013] Furthermore, the feed box is screwed to the cooling box, the slide rail is screwed to the feed box, the fixed end of the electric telescopic rod is screwed, and the telescopic end of the electric telescopic rod is screwed to the pressure plate.

[0014] By adopting the above technical solution, the design of the feed box facilitates the cold-rolled plate surface to enter the device, the electric slider moves relatively on the slide rail, and cooperates with the electric telescopic rod to drive the pressing plate to press down, thereby realizing the limitation of both sides of the cold-rolled plate surface, which can avoid the phenomenon of the cold-rolled plate surface moving when moving.

[0015] Furthermore, the drain plate is connected to the cooling box by screws, and the cooling box is connected to the water collecting hopper by screws.

[0016] By adopting the above technical solution, the used cooling water, cooling oil, etc. in the device will flow out through the drain plate and be collected by the water collecting bucket, so as to facilitate centralized treatment thereof.

[0017] Furthermore, the legs are connected to the cooling box and the bottom plate by screws, the self-locking universal wheels and the electric legs are connected to the bottom plate by screws, and the grooves are formed on the input box and the output box.

[0018] By adopting the above technical solution, the design of the self-locking universal wheel makes it convenient to move the device at any time. Combined with the design of the electric support foot, it can support the bottom of the device to avoid displacement of the device during operation. The design of the groove facilitates the feeding and discharging of the cold-rolled plate.

[0019] Furthermore, the hydraulic cylinder one, the hydraulic cylinder two, the hydraulic cylinder three, the hydraulic cylinder four and the hydraulic cylinder five are all screw-connected to the cooling box, and the oil coating roller is rotationally connected to the hydraulic cylinder one.

[0020] By adopting the above technical scheme, the designs of the hydraulic cylinder one, the hydraulic cylinder two, the hydraulic cylinder three, the hydraulic cylinder four and the hydraulic cylinder five facilitate the adjustment of the height of the oil coating roller, the warm water tank, the cold water tank, the cold air blower and the cleaning roller, thereby facilitating the close-range cooling of cold-rolled plates of different thicknesses by the device, thereby ensuring the cooling effect of the device on the cold-rolled plates. The design of the oil coating roller can evenly apply the cooling oil to the cold-rolled plate when rotating. Based on the physical principles of heat conduction and heat convection, the cooling medium absorbs heat to achieve the absorption of heat on the surface of the cold-rolled plate by the cooling oil.

[0021] Furthermore, the warm water tank is connected to the hydraulic cylinder by screw two, the cold water tank is connected to the hydraulic cylinder by screw three, the air cooler is connected to the hydraulic cylinder by screw four, and the cleaning roller is rotatably connected to the hydraulic cylinder by screw five.

[0022] By adopting the above technical scheme, the cold-rolled plate passes through the warm water tank and the cold water tank in sequence, so that the device sprays water to cool the cold-rolled plate surface. The order of the two is distinguished, which can effectively avoid the overheated cold-rolled plate surface from directly contacting with the cooler cooling water, and can effectively avoid the expansion of the coarse grain range at the edge of the cold-rolled plate and the mixed crystal range of the full thickness. In the subsequent cold rolling process, this mixed crystal structure is prone to cracking during the deformation process due to the difference in plasticity between it and the matrix structure. When passing through the cold air blower, the cold-rolled plate surface is air-cooled, ensuring the cooling effect of the device on the cold-rolled plate surface. When the cooled cold-rolled plate surface passes through the cleaning roller, the cleaning roller can clean and absorb the cooling water on the surface of the cold-rolled plate.

[0023] Furthermore, the water mist generator is screwed to the cooling box, the water mist generator is arranged at one end close to the oil coating roller, the nozzle is screwed to the water mist generator, and the blower is screwed to the discharge box.

[0024] By adopting the above technical solution, through the design of the water mist generator and the nozzle, when water is atomized into tiny water droplets (i.e., water mist), these water droplets evaporate in the air, and absorb the surrounding heat during the evaporation process, thereby achieving rapid cooling of the cold-rolled plate, avoiding the problem of intergranular corrosion of the cold-rolled plate, and cooperating with the blower to quickly dry the cold-rolled plate from top to bottom, it can effectively avoid long-term retention of moisture on the cold-rolled plate, facilitating the subsequent use of the cold-rolled plate.

[0025] The specific working principle is as follows: when the device is used, the device can be moved to an appropriate position through the design of the self-locking universal wheel, the electric support foot is used to support the entire device, and the device is connected to an external power supply, the cold water tank and the warm water tank are connected to an external water supply device, one end of the oiling roller is connected to the oil supply device, and the water outlet of the water collecting bucket needs to be connected to an external drainage device. After completion, the cold-rolled plate surface to be cooled can be inserted into the groove of the feed box, and the two electric sliders are moved relatively on the slide rail to cooperate with the The electric telescopic rod drives the pressing plate to press down, which can limit the two sides of the cold-rolled plate surface and avoid the problem of deviation of the cold-rolled plate surface when moving. After the cold-rolled plate surface enters the cooling box, the motor drives the oiling roller to rotate, so that the oiling roller can quickly oil the cold-rolled plate surface. After the cooling oil contacts the cold-rolled plate surface, it absorbs heat through the cooling medium based on the physical principles of heat conduction and heat convection, so that the cooling oil absorbs the heat on the surface of the cold-rolled plate. The cold-rolled plate passes through the warm water tank and the cold water tank in turn, so that the device sprays water cooling on the cold-rolled plate surface. The order of the two can effectively avoid direct contact between the overheated cold-rolled sheet and the cooler cooling water, and can effectively avoid the expansion of the coarse grain range at the edge of the cold-rolled sheet and the mixed grain range in the full thickness. This mixed crystal structure is prone to cracking during the deformation process due to the difference in plasticity between it and the matrix structure during the subsequent cold rolling process. At the same time, by designing the water mist generator and the nozzle, when water is atomized into tiny water droplets, i.e., water mist, these water droplets evaporate in the air, and absorb the surrounding heat during the evaporation process, thereby achieving rapid cooling of the cold-rolled sheet. , avoiding the problem of intergranular corrosion of cold-rolled plates. Cooling oil, cooling water, etc. will enter the water collecting bucket through the drain plate to facilitate centralized treatment. When passing through the cold air blower, the cold air blower will air-cool the cold-rolled plate surface, ensuring the cooling effect of the device on the cold-rolled plate surface. When the cooled cold-rolled plate surface passes through the cleaning roller, the cleaning roller can clean and absorb the cooling water, etc. on the surface of the cold-rolled plate. Cooperating with the blower to quickly dry the upper and lower parts of the cold-rolled plate, it can effectively avoid long-term retention of moisture on the cold-rolled plate, facilitating the subsequent use of the cold-rolled plate.

[0026] The beneficial effects of the present invention are:

[0027] 1. In order to solve the problem that the existing high-speed cooling device for cold-rolled plate surface realizes water cooling of cold-rolled plate by water-cooled convection heat exchange, although the above method can realize the cooling effect of the device on the cold-rolled plate, when cooling the cold-rolled plate, the cooling speed of the device is slow, and the residence time of the cold-rolled plate during the sensitization period is long, resulting in the occurrence of intergranular corrosion, and then causing the device to affect the production quality of the cold-rolled plate. The present invention designs a water mist generator and a nozzle. When water is atomized into tiny water droplets (i.e., water mist), these water droplets evaporate in the air, and absorb the surrounding heat during the evaporation process, thereby realizing rapid cooling of the cold-rolled plate and avoiding the problem of intergranular corrosion of the cold-rolled plate;

[0028] 2. In order to solve the problem that when the existing high-speed cooling device for cold-rolled plate surface cools the cold-rolled plate with water, the temperature of the cooling water is too low, the coarse grain range at the edge of the cold-rolled plate and the mixed crystal range of the full thickness are expanded, and this mixed crystal structure is prone to cracking during the deformation process due to the difference in plasticity between it and the matrix structure during the subsequent cold rolling process, which further leads to the problem of edge cracks in the produced cold-rolled plate, the present invention is based on the physical principles of heat conduction and heat convection, and absorbs heat through the cooling medium, thereby realizing the absorption of heat on the surface of the cold-rolled plate by the cooling oil, and with the design of the warm water tank and the cold water tank, it can effectively prevent the overheated cold-rolled plate from directly contacting with the water at a lower temperature, and can effectively prevent the cold-rolled plate from cracking;

[0029] 3. In order to solve the problem that when the existing high-speed cooling device for cold-rolled plate surface cools the cold-rolled plate by water cooling, the liquid remaining on the surface of the cold-rolled plate is directly output from the device without being processed. When the cold-rolled plate is placed for a long time, the moisture is not dried for a long time, which will cause rust on the surface of the cold-rolled plate, affecting the subsequent use of the cold-rolled plate. The present invention designs a cleaning roller to clean and absorb the cooling water on the surface of the cold-rolled plate, and cooperates with a blower to quickly dry the upper and lower parts of the cold-rolled plate, which can effectively prevent moisture from being retained on the cold-rolled plate for a long time and facilitate the subsequent use of the cold-rolled plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a cooling box in a cold-rolled plate surface high-speed cooling device according to the present invention;

[0031] Figure 2 It is a structural schematic diagram of a high-speed cooling device for cold-rolled plate surface according to the present invention;

[0032] Figure 3 It is a schematic diagram of the internal structure of a feed box in a cold-rolled plate surface high-speed cooling device according to the present invention;

[0033] Figure 4 It is a main cross-sectional view of a discharge box in a cold-rolled plate surface high-speed cooling device described in the present invention.

[0034] The following are the descriptions of the reference numerals:

[0035] 1. Feed box; 2. Outriggers; 3. Self-locking universal wheels; 4. Cooling box; 5. Discharge box; 6. Electric feet; 7. Bottom plate; 8. Hydraulic cylinder 2; 9. Hydraulic cylinder 1; 10. Warm water tank; 11. Cold water tank; 12. Oiling roller; 13. Pressurized nozzle; 14. Motor; 15. Hydraulic cylinder 3; 16. Hydraulic cylinder 4; 17. Hydraulic cylinder 5; 18. Cooling fan; 19. Water mist generator; 20. Nozzle; 21. Groove; 22. Cleaning roller; 23. Drain plate; 24. Water collecting bucket; 25. Pressing plate; 26. Slide rail; 27. Electric telescopic rod; 28. Electric slider; 29. ​​Blower. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings:

[0037] like Figure 1-Figure 4As shown, a high-speed cooling device for cold-rolled plate surface comprises a cooling box 4, two hydraulic cylinders 9 are symmetrically installed on one side of the top of the cooling box 4, an oil coating roller 12 is installed between the two hydraulic cylinders 9, the design of the oil coating roller 12 can evenly apply cooling oil on the cold-rolled plate when rotating, and the cooling oil absorbs heat on the surface of the cold-rolled plate based on the physical principles of heat conduction and heat convection, and absorbs heat through the cooling medium, and a hydraulic cylinder 2 8 is arranged on one side of the hydraulic cylinder 1 9, a warm water tank 10 is connected between the two hydraulic cylinders 2 8, a hydraulic cylinder 3 15 is fixed on one side of the hydraulic cylinder 2 8, a cold water tank 11 is arranged between the two hydraulic cylinders 3 15, and the warm water tank 10 and the cold water tank 11 are arranged between the two hydraulic cylinders 3 15. 1 is provided with a pressurized nozzle 13 at the water outlet end, a hydraulic cylinder four 16 is installed on one side of the hydraulic cylinder three 15, and a cooling fan 18 is arranged between the hydraulic cylinders four 16. The cold-rolled plate passes through the warm water tank 10 and the cold water tank 11 in sequence, so that the device sprays water cooling on the cold-rolled plate surface. The two distinguish the sequence, which can effectively avoid the overheated cold-rolled plate surface from being in direct contact with the cooler cooling water, and can effectively avoid the expansion of the coarse grain range at the edge of the cold-rolled plate and the mixed grain range of the full thickness. This mixed crystal structure is prone to cracking during the deformation process due to the difference in plasticity between it and the matrix structure during the subsequent cold rolling process. When passing through the cooling fan 18, the cooling fan 18 will air-cool the cold-rolled plate surface to ensure The device has a cooling effect on the cold-rolled plate surface. A hydraulic cylinder 5 17 is arranged on one side of the hydraulic cylinder 4 16. A cleaning roller 22 is connected between the two hydraulic cylinders 5 17. The design of the hydraulic cylinder 1 9, the hydraulic cylinder 2 8, the hydraulic cylinder 3 15, the hydraulic cylinder 4 16 and the hydraulic cylinder 5 17 facilitates the adjustment of the height of the oiling roller 12, the warm water tank 10, the cold water tank 11, the air cooler 18 and the cleaning roller 22, thereby facilitating the close-range cooling of cold-rolled plates of different thicknesses by the device, thereby ensuring the cooling effect of the device on the cold-rolled plate. When the cooled cold-rolled plate surface passes through the cleaning roller 22, the cleaning roller 22 can cool the cooling water on the surface of the cold-rolled plate. Cleaning and adsorption, eight water mist generators 19 are symmetrically installed on the two side walls inside the cooling box 4, and the output end of the water mist generator 19 is connected to the nozzle 20. Through the design of the water mist generator 19 and the nozzle 20, when water is atomized into tiny water droplets, i.e., water mist, these water droplets evaporate in the air, and absorb the surrounding heat during the evaporation process, thereby achieving rapid cooling of the cold-rolled plate, avoiding the problem of intergranular corrosion of the cold-rolled plate, and a discharge box 5 is installed on one side wall of the cooling box 4. Two blowers 29 are symmetrically installed on the upper and lower sides of the discharge box 5. The blower 29 cooperates with the rapid air drying of the upper and lower parts of the cold-rolled plate, which can effectively avoid long-term retention of moisture on the cold-rolled plate and facilitate the subsequent use of the cold-rolled plate.

[0038] In this embodiment, the oiling roller 12, the warm water tank 10, the cold water tank 11, the cold air blower 18 and the cleaning roller 22 are arranged in sequence at the lower end of the cooling box 4, and a motor 14 is installed on one end of the oiling roller 12 and the cleaning roller 22 on one side wall of the cooling box 4, and a feed box 1 is fixed on the side wall of the cooling box 4 opposite to the discharge box 5, and a slide rail 26 is arranged in the middle of the bottom end of the feed box 1, and two electric sliders 28 are installed on the slide rail 26, and an electric telescopic rod 27 is arranged on one side of the top end of the electric slider 26, and the telescopic end of the electric telescopic rod 27 is connected to a pressing plate 25, and a drain plate 23 is installed at the bottom end of the cooling box 4, and a water collecting bucket 24 is arranged at the lower end of the drain plate 23 in the cooling box 4, and the cooling box 4 realizes water cooling and air cooling of the cold-rolled plate surface by convection heat exchange, which can effectively realize the rapid cooling of the cold-rolled plate surface by the device.

[0039] In this embodiment, four legs 2 are provided at the four corners of the bottom end of the cooling box 4, the bottom ends of the legs 2 are connected to a bottom plate 7, four self-locking universal wheels 3 are installed at the four corners of the bottom end of the bottom plate 7, and electric support feet 6 are arranged on the inner sides of the self-locking universal wheels 3. Grooves 21 are provided on one side wall of the discharge box 5 and the input box 1. The legs 2 realize the supporting function of the cooling box 4, which facilitates the water collecting bucket 24 to discharge water from the bottom.

[0040] In the present embodiment, the oiling roller 12, the warm water tank 10, the cold water tank 11, the cold air blower 18 and the cleaning roller 22 are all symmetrically distributed up and down, and the motor 14 is key-connected to the oiling roller 12 and the cleaning roller 22. The oiling roller 12, the warm water tank 10, the cold water tank 11, the cold air blower 18 and the cleaning roller 22 in the cooling box 4 can realize simultaneous cooling and cleaning of both sides of the cold-rolled plate surface by the device, thereby ensuring the cooling effect of the device on the cold-rolled plate surface. The motor 14 drives the oiling roller 12 and the cleaning roller 22 to rotate, thereby realizing the rotation of the oiling roller 12 and the cleaning roller 22 on the cold-rolled plate surface.

[0041] In this embodiment, the feed box 1 is connected to the cooling box 4 by screws, the slide rail 26 is connected to the feed box 1 by screws, the fixed end of the electric telescopic rod 27 is connected by screws, and the telescopic end of the electric telescopic rod 27 is connected to the pressure plate 25 by screws. The design of the feed box 1 facilitates the cold-rolled plate surface to enter the device. The electric slider 28 moves relatively on the slide rail 26, and cooperates with the electric telescopic rod 27 to drive the pressure plate 25 to press down, thereby realizing the limitation of both sides of the cold-rolled plate surface, which can avoid the phenomenon of the cold-rolled plate surface moving when moving.

[0042] In this embodiment, the drain plate 23 is screwed to the cooling box 4, and the cooling box 4 is screwed to the water collecting bucket 24. The used cooling water, cooling oil, etc. in the device will flow out through the drain plate 23 and be collected by the water collecting bucket 24, which is convenient for centralized treatment.

[0043] In this embodiment, the support legs 2 are connected to the cooling box 4 and the base plate 7 by screws, the self-locking universal wheels 3 and the electric support feet 6 are connected to the base plate 7 by screws, and the grooves 21 are formed on the input box 1 and the output box 5. The design of the self-locking universal wheels 3 facilitates the movement of the device at any time, and cooperates with the design of the electric support feet 6 to support the bottom end of the device to avoid displacement of the device during operation. The design of the grooves 21 facilitates the feeding and discharging of cold-rolled plates.

[0044] In this embodiment, the hydraulic cylinder 1 9, the hydraulic cylinder 2 8, the hydraulic cylinder 3 15, the hydraulic cylinder 4 16 and the hydraulic cylinder 5 17 are all screw-connected to the cooling box 4, and the oiling roller 12 is rotatably connected to the hydraulic cylinder 1 9. The design of the hydraulic cylinder 1 9, the hydraulic cylinder 2 8, the hydraulic cylinder 3 15, the hydraulic cylinder 4 16 and the hydraulic cylinder 5 17 facilitates the adjustment of the height of the oiling roller 12, the warm water tank 10, the cold water tank 11, the air cooler 18 and the cleaning roller 22, thereby facilitating the close-range cooling of cold-rolled plates of different thicknesses by the device, thereby ensuring the cooling effect of the device on the cold-rolled plates. The design of the oiling roller 12 can evenly apply the cooling oil on the cold-rolled plate when rotating. Based on the physical principles of heat conduction and heat convection, the cooling medium absorbs heat to achieve the absorption of heat on the surface of the cold-rolled plate by the cooling oil.

[0045] In this embodiment, the warm water tank 10 is connected to the hydraulic cylinder 2 by screws 8, the cold water tank 11 is connected to the hydraulic cylinder 3 by screws 15, the air cooler 18 is connected to the hydraulic cylinder 4 by screws 16, and the cleaning roller 22 is rotatably connected to the hydraulic cylinder 5 17. The cold-rolled plate passes through the warm water tank 10 and the cold water tank 11 in sequence, so that the device sprays water to cool the cold-rolled plate surface. The order of the two is distinguished, which can effectively avoid the overheated cold-rolled plate surface from being in direct contact with the cooler cooling water, and can effectively avoid the expansion of the coarse grain range at the edge of the cold-rolled plate and the mixed grain range of the full thickness. In the subsequent cold rolling process, this mixed crystal structure is prone to cracking during the deformation process due to the difference in plasticity between it and the matrix structure. When passing through the air cooler 18, the air cooler 18 will air-cool the cold-rolled plate surface, ensuring the cooling effect of the device on the cold-rolled plate surface. When the cooled cold-rolled plate surface passes through the cleaning roller 22, the cleaning roller 22 can clean and adsorb the cooling water on the surface of the cold-rolled plate.

[0046] In this embodiment, the water mist generator 19 is screwed to the cooling box 4, the water mist generator 19 is arranged at one end close to the oil coating roller 12, the nozzle 20 is screwed to the water mist generator 19, and the blower 29 is screwed to the discharge box 5. Through the design of the water mist generator 19 and the nozzle 20, when water is atomized into tiny water droplets, i.e., water mist, these water droplets evaporate in the air, and absorb the surrounding heat during the evaporation process, thereby achieving rapid cooling of the cold-rolled plate, avoiding the problem of intergranular corrosion of the cold-rolled plate, and cooperating with the blower 29 to quickly dry the upper and lower parts of the cold-rolled plate, which can effectively avoid long-term retention of moisture on the cold-rolled plate, and facilitate the subsequent use of the cold-rolled plate.

[0047] The specific working principle is as follows: when the device is used, the device can be moved to an appropriate position through the design of the self-locking universal wheel 3, the electric support foot 6 is used to support the entire device, and the device is connected to an external power supply, the cold water tank 11 and the warm water tank 10 are connected to an external water supply device, and one end of the oiling roller 12 is connected to the oil supply device. At the same time, the water outlet of the water collecting bucket 24 needs to be connected to an external drainage device. After completion, the cold-rolled plate surface to be cooled can be inserted from the groove 21 of the feed box 1, and the two electric sliders 28 are relatively moved on the slide rail 26. , cooperate with the electric telescopic rod 27 to drive the pressing plate 25 to press down, so as to limit the two sides of the cold-rolled plate surface, and avoid the problem of deviation of the cold-rolled plate surface when moving. After the cold-rolled plate surface enters the cooling box 4, the motor 14 drives the oiling roller 12 to rotate, so as to realize the rapid oiling of the cold-rolled plate surface by the oiling roller 12. After the cooling oil contacts the cold-rolled plate surface, based on the physical principles of heat conduction and heat convection, the cooling oil absorbs heat through the cooling medium, so as to realize the absorption of heat on the surface of the cold-rolled plate by the cooling oil, and the cold-rolled plate passes through the warm water tank 10 and the cold water tank 11 in turn, so as to realize the device for cold-rolling. The spraying water cooling of the plate surface and the order of the two can effectively avoid the direct contact between the overheated cold-rolled plate surface and the cooler cooling water, and can effectively avoid the expansion of the coarse grain range at the edge of the cold-rolled plate and the mixed grain range of the full thickness. This mixed crystal structure is prone to cracking during the deformation process due to the difference in plasticity between it and the matrix structure during the subsequent cold rolling process. At the same time, by designing the water mist generator 19 and the nozzle 20, when water is atomized into tiny water droplets, i.e., water mist, these water droplets evaporate in the air, and absorb the surrounding heat during the evaporation process, thereby achieving rapid cooling of the cold-rolled plate and avoiding In order to avoid the problem of intergranular corrosion of cold-rolled plates, cooling oil, cooling water, etc. will pass through the drain plate 23 into the water collecting bucket 24 for centralized treatment. When passing through the cold air fan 18, the cold air fan 18 will air-cool the cold-rolled plate surface, ensuring the cooling effect of the device on the cold-rolled plate surface. When the cooled cold-rolled plate surface passes through the cleaning roller 22, the cleaning roller 22 can clean and absorb the cooling water, etc. on the surface of the cold-rolled plate, and cooperate with the blower 29 to quickly dry the upper and lower parts of the cold-rolled plate, which can effectively prevent moisture from being retained on the cold-rolled plate for a long time, and facilitate the subsequent use of the cold-rolled plate.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A high-speed cooling device for cold-rolled plate surface, characterized in that: The invention comprises a cooling box (4), wherein two hydraulic cylinders (9) are symmetrically installed on one side of the top of the cooling box (4), an oiling roller (12) is installed between the two hydraulic cylinders (9), a hydraulic cylinder (8) is arranged on one side of the hydraulic cylinder (9), a warm water tank (10) is connected between the two hydraulic cylinders (8), a hydraulic cylinder (15) is fixed on one side of the hydraulic cylinder (8), a cold water tank (11) is arranged between the two hydraulic cylinders (15), a pressurized nozzle (13) is arranged at the water outlet end of the warm water tank (10) and the cold water tank (11), and the hydraulic cylinders (10) and the cold water tank (11) are provided with a plurality of pressure nozzles (13). A hydraulic cylinder four (16) is installed on one side of the third (15), a cooling fan (18) is arranged between the hydraulic cylinders four (16), a hydraulic cylinder five (17) is arranged on one side of the hydraulic cylinders four (16), a cleaning roller (22) is connected between two of the hydraulic cylinders five (17), eight water mist generators (19) are symmetrically installed on the inner side walls of the cooling box (4), the output end of the water mist generator (19) is connected to a nozzle (20), a discharge box (5) is installed on one side wall of the cooling box (4), and two blowers (29) are symmetrically installed on the upper and lower sides of the discharge box (5).

2. The high-speed cooling device for cold-rolled plate surface according to claim 1, characterized in that: The lower end of the cooling box (4) is provided with the oiling roller (12), the warm water box (10), the cold water box (11), the cooling fan (18) and the cleaning roller (22) in sequence; a motor (14) is installed on one end of the oiling roller (12) and the cleaning roller (22) on one side wall of the cooling box (4); a feed box (1) is fixed on the side wall of the cooling box (4) opposite to the discharge box (5); a slide rail (26) is provided in the middle of the bottom end of the feed box (1); two electric sliders (28) are installed on the slide rail (26); an electric telescopic rod (27) is provided on one side of the top end of the electric slider (26); the telescopic end of the electric telescopic rod (27) is connected to a pressure plate (25); a drain plate (23) is installed on the bottom end of the cooling box (4); a water collecting bucket (24) is provided at the lower end of the drain plate (23) in the cooling box (4).

3. The high-speed cooling device for cold-rolled plate surface according to claim 2, characterized in that: Four legs (2) are arranged at the four corners of the bottom end of the cooling box (4), the bottom ends of the legs (2) are connected to a bottom plate (7), four self-locking universal wheels (3) are installed at the four corners of the bottom end of the bottom plate (7), electric legs (6) are arranged inside the self-locking universal wheels (3), and grooves (21) are provided on one side wall of the discharge box (5) and the input box (1).

4. The high-speed cooling device for cold-rolled plate surface according to claim 2, characterized in that: The oil coating roller (12), the warm water tank (10), the cold water tank (11), the cold air blower (18) and the cleaning roller (22) are all symmetrically distributed up and down, and the motor (14) is key-connected to the oil coating roller (12) and the cleaning roller (22).

5. The device for high-speed cooling of cold-rolled plate surface according to claim 2, characterized in that: The feed box (1) is screw-connected to the cooling box (4), the slide rail (26) is screw-connected to the feed box (1), the fixed end of the electric telescopic rod (27) is screw-connected, and the telescopic end of the electric telescopic rod (27) is screw-connected to the pressure plate (25).

6. The device for high-speed cooling of cold-rolled plate surface according to claim 2, characterized in that: The drain plate (23) is connected to the cooling box (4) by screws, and the cooling box (4) is connected to the water collecting bucket (24) by screws.

7. The device for high-speed cooling of cold-rolled plate surface according to claim 3, characterized in that: The legs (2) are screw-connected to the cooling box (4) and the bottom plate (7); the self-locking universal wheels (3) and the electric legs (6) are screw-connected to the bottom plate (7); and the grooves (21) are formed on the input box (1) and the output box (5).

8. The device for high-speed cooling of cold-rolled plate surface according to claim 1, characterized in that: The hydraulic cylinder one (9), the hydraulic cylinder two (8), the hydraulic cylinder three (15), the hydraulic cylinder four (16) and the hydraulic cylinder five (17) are all screw-connected to the cooling box (4), and the oiling roller (12) is rotationally connected to the hydraulic cylinder one (9).

9. The device for high-speed cooling of cold-rolled plate surface according to claim 1, characterized in that: The warm water tank (10) is connected to the hydraulic cylinder two (8) by screws, the cold water tank (11) is connected to the hydraulic cylinder three (15) by screws, the cooling air fan (18) is connected to the hydraulic cylinder four (16) by screws, and the cleaning roller (22) is rotatably connected to the hydraulic cylinder five (17).

10. The device for high-speed cooling of cold-rolled plate surface according to claim 1, characterized in that: The water mist generator (19) is screwed to the cooling box (4), the water mist generator (19) is arranged at one end close to the oil coating roller (12), the nozzle (20) is screwed to the water mist generator (19), and the blower (29) is screwed to the discharge box (5).

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