A cold rolling mill blowing device

Abstract

The utility model discloses a cold rolling mill purging device belongs to metal strip rolling post -treatment equipment technical field. The device includes purging cover, and its inside is equipped with purging mechanism, flushing mechanism and drying mechanism along the rolling piece conveying direction in proper order. Purging mechanism includes liftable upper scanning cover and fixed lower scanning cover, and is equipped with upper and lower brush roller and the upper and lower liquid injection head of inclined setting respectively in it, and through the combination of mechanical brushing and cleaning fluid injection, can effectively remove the stubborn dirt of strip surface and recess. The flushing mechanism includes upper and lower flushing pipe and is used for flushing with clean water. The drying mechanism includes upper and lower cover body, and is equipped with the blower fan, electric heater and liftable upper scraper and fixed lower scraper, and is used for scraping water and hot -blast drying. The utility model discloses through first, second adjusting screw rod can be adjusted respectively independent brushing and scraping water gap, to adapt to the strip steel of different thickness, has the advantages such as complete oil removal, function integration, and flexible adjustment.

Description

Technical Field

[0001] This utility model belongs to the technical field of post-processing equipment for metal strip rolling, and particularly relates to a cold rolling mill purging device. Background Technology

[0002] When metal materials such as platinum for cable tape and air conditioning foil are rolled in a cold rolling mill, appropriate rolling oil must be used between the rolls and the workpiece to avoid damage to the workpiece surface, ensure the roll life, and achieve the purpose of lubrication and cooling. However, a certain amount of rolling oil will remain on the workpiece after passing through the rolls. The rolling oil on the workpiece needs to be removed to avoid adverse effects on subsequent processes.

[0003] Patent CN222519541U discloses a cold rolling mill cleaning device. This device achieves simultaneous cleaning of both the rolled piece and the rollers through a cleaning mechanism positioned between them. The combination of cleaning and adhesive removal of oil stains ensures a more thorough cleaning of the surface of the rolled piece. A semi-sealed scraping and collection system effectively collects the oil stains, preventing them from splashing and contaminating the equipment. However, during the cold rolling process, the surface of the strip (rolled piece) inevitably develops some minor depressions due to factors such as the equipment itself, the process, the raw materials, and operator error. Existing devices, using adhesive rollers, struggle to remove oil stains from these depressions, resulting in incomplete and inefficient oil removal. Summary of the Invention

[0004] The purpose of this invention is to provide a cold rolling mill purging device to solve the problems existing in the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A cold rolling mill cleaning device includes a cleaning hood, and the following components are arranged sequentially inside the cleaning hood along the workpiece conveying direction:

[0007] The purging mechanism includes an upper purging cover that can be lifted and lowered inside the purging cover and a lower purging cover that is fixed inside the purging cover and is vertically opposite to the upper purging cover. The upper purging cover and the lower purging cover are respectively rotatably installed with an upper brush roller and a lower brush roller for brushing the upper and lower surfaces of the rolled workpiece. The upper purging cover and the lower purging cover are respectively provided with a number of upper spray nozzles and lower spray nozzles for spraying cleaning liquid onto the surface of the rolled workpiece.

[0008] The flushing mechanism includes an upper flushing pipe and a lower flushing pipe fixed inside the purge hood and arranged vertically opposite to each other, with several water outlets provided on the upper flushing pipe and the lower flushing pipe.

[0009] The drying mechanism includes an upper cover and a lower cover fixed inside the blower hood and arranged opposite each other. The upper cover and the lower cover are equipped with a blower and an electric heater located at the air outlet of the blower. The upper cover is equipped with an upper scraper that can be raised and lowered, and the lower cover is fixed with a lower scraper opposite to the upper scraper.

[0010] Furthermore, a first adjusting screw is threaded onto the purge hood, and a first locking nut is threaded onto the first adjusting screw above the purge hood. The bottom end of the first adjusting screw is rotatably connected to the upper purge hood, and at least one guide rod is fixedly connected to the top of the upper purge hood, with the guide rod sliding through the purge hood.

[0011] Furthermore, the purging mechanism also includes an oil stain cleaning fluid storage tank and a pump located outside the purging hood. The input end of the pump is connected to the oil stain cleaning fluid storage tank pipeline, and the output end of the pump is connected to a distribution pipeline. The distribution pipeline is connected to the lower spray head and is connected to the upper spray head through a hose.

[0012] Furthermore, both the upper and lower spray heads are tilted, with their spray direction directed toward the area between the upper and lower brush rollers.

[0013] Furthermore, there are two upper brush rollers and two lower brush rollers, and the two upper brush rollers and the two lower brush rollers are connected by pulleys and belt drives.

[0014] Furthermore, a second adjusting screw is threaded onto the upper cover, and a second locking nut is threaded onto the upper cover. The bottom end of the second adjusting screw is rotatably connected to the upper scraper. Limiting grooves are provided on both sides of the inner wall of the blow hood, and the two ends of the upper scraper are respectively slidably engaged with the two limiting grooves.

[0015] Furthermore, the outlets on the upper and lower flushing pipes are angled toward the rolled piece.

[0016] Furthermore, a wastewater tank is installed inside the purging hood. The wastewater tank is located below the purging mechanism, rinsing mechanism, and drying mechanism. A drain pipe is connected to the bottom of the lower purging hood to guide the waste liquid into the wastewater tank.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model addresses the characteristics of cold-rolled strip steel surfaces that are prone to sporadic depressions and residual high-viscosity rolling oil stains. It is equipped with an upper brush roller, a lower brush roller, and an inclined upper and lower spray head. Through the mechanical brushing of the brush roller and the special oil stain cleaning liquid sprayed from the spray head, the upper and lower surfaces of the rolled workpiece can be effectively cleaned. In particular, it can remove stubborn oil stains in the depressions on the surface of the rolled steel strip, solving the problem of incomplete oil removal by the sticking roller method in the prior art, making the oil stain removal of the rolled workpiece more thorough and the oil removal effect better.

[0019] 2. This utility model uses an upper rinsing pipe, a lower rinsing pipe, a blower, an electric heater, an upper scraper, and a lower scraper to work together to sequentially rinse the swept rolled parts with clean water, mechanically scrape off surface water stains, and dry them with hot air, forming a complete and efficient processing flow. It can quickly remove and dry the cleaning liquid and moisture on the surface of the rolled parts, greatly facilitating subsequent processes and improving overall work efficiency.

[0020] 3. By ingeniously setting a first adjusting screw and a second adjusting screw, this utility model can independently and precisely adjust the height of the upper brush roller in the upstream process and the upper scraper in the downstream process, thereby enabling flexible adjustment of the gap between the upper and lower brush rollers and the gap between the upper and lower scrapers. This allows the device to perfectly suit the sweeping and water scraping needs of rolled parts of different thicknesses, effectively expanding the scope of application of this utility model and making it more practical and adaptable. Attached Figure Description

[0021] Figure 1 This is a front sectional view of the present invention.

[0022] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0023] Figure 3 This is a schematic diagram of the rear view structure of this utility model.

[0024] The components are: 1. purge hood; 2. upper purge hood; 3. lower purge hood; 4. upper brush roller; 5. lower brush roller; 6. pulley; 7. belt; 8. first adjusting screw; 9. upper flushing pipe; 10. lower flushing pipe; 11. drain pipe; 12. upper spray head; 13. lower spray head; 14. hose; 15. liquid distribution pipe rack; 16. infusion pump; 17. oil stain cleaning fluid storage tank; 18. sewage tank; 19. upper cover; 20. lower cover; 21. blower fan; 22. electric heater; 23. upper scraper; 24. lower scraper; 25. second adjusting screw; 26. guide rod; 27. first locking nut; 28. second locking nut. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0026] like Figure 1-3 As shown, this utility model provides a cold rolling mill cleaning device, in which the cleaning hood 1 is installed between the cold rolling mill outlet and the downstream coiling or conveying equipment. The internal space of the cleaning hood 1 is divided into three functional areas along the running direction of the strip (rolled workpiece): a cleaning area, a rinsing area, and a drying area.

[0027] In the sweeping area, a blowing mechanism is provided. The upper sweeping cover 2 is mounted on top of the blowing cover 1 via a first adjusting screw 8. Rotating the first adjusting screw 8 adjusts the height of the upper sweeping cover 2. After adjustment, tightening the first locking nut 27 located above the blowing cover 1 locks its position. To ensure smooth lifting, the upper sweeping cover 2 is guided and slidably engaged with the blowing cover 1 on both sides via guide rods 26. The lower sweeping cover 3 is fixedly mounted at the bottom of the blowing cover 1, corresponding vertically to the upper sweeping cover 2, together forming a channel that allows the strip steel to pass through. Two upper brush rollers 4 are rotatably mounted side by side inside the upper sweeping cover 2, and two lower brush rollers 5 are similarly rotatably mounted side by side inside the lower sweeping cover 3. Each brush roller has a pulley 6 mounted at one end, and the two pulleys 6 inside the same cover are connected by a belt 7 to achieve synchronous rotation. The shaft ends of one upper brush roller 4 and one lower brush roller 5 are driven by independent motors (not shown in the figure), and the two motors are fixed to the outer walls of the upper sweeping cover 2 and the lower sweeping cover 3, respectively. Multiple inclined upper spray heads 12 and lower spray heads 13 are installed on the front and rear walls of the upper sweeping cover 2 and the front and rear walls of the lower sweeping cover 3. These spray heads are inclined (e.g., at a 45-degree angle) and their spray direction is precisely directed towards the brushing area where the brush roller contacts the strip steel.

[0028] The outer side of the purge hood 1 is equipped with an oil stain cleaning fluid storage tank 17 and a delivery pump 16. The inlet of the delivery pump 16 extends into the storage tank 17 through a pipe, and its outlet is connected to a distribution pipe 15. The distribution pipe 15 is directly connected to the lower spray head 13 through a rigid pipe, and is also connected to the upper spray head 12 through a flexible hose 14 to meet the expansion and contraction requirements of the pipeline when the upper purge hood 2 is raised and lowered.

[0029] A rinsing mechanism is provided in the rinsing area. The upper rinsing pipe 9 and the lower rinsing pipe 10 are fixedly installed inside the purge hood 1 by brackets, located above and below the strip channel, respectively. Multiple water outlets are provided along the length of both pipes, preferably angled towards the strip surface to enhance the rinsing effect. The upper rinsing pipe 9 and the lower rinsing pipe 10 are connected to an external clean water pump (already available in the workshop, not shown in the figure) via a connecting pipe.

[0030] A drying mechanism is provided in the drying area. The upper cover 19 and lower cover 20 are fixedly installed at both ends inside the purge hood 1, forming a drying channel. A second adjusting screw 25 is threadedly connected to the upper cover 19, and a second locking nut 28 is threadedly connected to the second adjusting screw 25 above the upper cover 19. Correspondingly, an operating hole can be opened on the purge hood 1 above the second adjusting screw 25 for adjustment. The bottom end of the second adjusting screw 25 is rotatably connected to the upper scraper 23. Rotating the second adjusting screw 25 allows for independent adjustment of the height of the upper scraper 23, which is then locked by the second locking nut 28 located above the upper cover 19. Vertical limiting grooves (as an embodiment of a limiting structure) are provided on both sides of the inner wall of the purge hood 1. The two ends of the upper scraper 23 slide within these limiting grooves, ensuring that it only moves vertically. A lower scraper 24, opposite to the upper scraper 23, is fixedly installed on the lower cover 20. Fans 21 are installed on both the upper cover 19 and the lower cover 20, and electric heaters 22 are installed in the air outlet direction of each fan 21.

[0031] The bottom of the purge hood 1 is equipped with a wastewater tank 18, which is used to collect all oily wastewater and rinsing wastewater generated during the entire treatment process. The bottom of the lower hood 3 is connected to a drain pipe 11, which can directly guide the waste liquid generated in the sweeping area into the wastewater tank 18. The liquid dripping from the rinsing area and the drying area also eventually collects in the wastewater tank 18.

[0032] The working principle of this utility model is as follows:

[0033] The oil stain cleaning fluid storage tank 17 is filled with cleaning fluid, and the upper flushing pipe 9 and lower flushing pipe 10 are connected to an external clean water pump through a connecting pipe. After the cold-rolled strip is drawn out of the rolling mill, it first enters the cleaning area. The motor is started, and the upper brush roller 4 and lower brush roller 5 rotate synchronously in opposite directions. At the same time, the liquid pump 16 is started to pump the oil stain cleaning fluid from the storage tank 17, which is then evenly sprayed onto the upper and lower surfaces of the strip and the brush bristles through the upper spray head 12 and lower spray head 13. With the help of the cleaning fluid, the rotating bristles powerfully scrub the surface of the strip, especially able to "stir up" and remove stubborn oil stains in the surface depressions.

[0034] After being scrubbed, the strip steel enters the rinsing area. High-pressure clean water sprayed from the outlets of the upper rinsing pipe 9 and the lower rinsing pipe 10 thoroughly rinses the upper and lower surfaces of the strip steel to remove residual cleaning fluid and emulsified oil.

[0035] The strip then enters the drying zone. First, the upper scraper 23 and lower scraper 24 remove most of the water film adhering to the surface of the strip. Next, the electric heater 22 heats the air, and the hot air is blown onto the upper and lower surfaces of the strip by the blower fan 21, causing it to dry quickly. Finally, the clean and dry strip is sent out of the unit to enter the next process.

[0036] When processing strip steel of different thicknesses, the first adjusting screw 8 can be adjusted independently to change the gap between the upper brush roller 4 and the lower brush roller 5, and the second adjusting screw 25 can be adjusted to change the gap between the upper scraper 23 and the lower scraper 24. After tightening the first locking nut 27 and the second locking nut 28, a locking function can be achieved, thereby adapting to different production needs.

[0037] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention.

[0038] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A cold rolling mill blowing device, characterized in that, Includes a purge hood, wherein the interior of the purge hood is arranged sequentially along the workpiece conveying direction with the following components: The purging mechanism includes an upper purging cover that can be lifted and lowered inside the purging cover and a lower purging cover that is fixed inside the purging cover and is vertically opposite to the upper purging cover. The upper purging cover and the lower purging cover are respectively rotatably installed with an upper brush roller and a lower brush roller for brushing the upper and lower surfaces of the rolled workpiece. The upper purging cover and the lower purging cover are respectively provided with a number of upper spray nozzles and lower spray nozzles for spraying cleaning liquid onto the surface of the rolled workpiece. The flushing mechanism includes an upper flushing pipe and a lower flushing pipe fixed inside the purge hood and arranged vertically opposite to each other, with several water outlets provided on the upper flushing pipe and the lower flushing pipe. The drying mechanism includes an upper cover and a lower cover fixed inside the blower hood and arranged opposite each other. The upper cover and the lower cover are equipped with a blower and an electric heater located at the air outlet of the blower. The upper cover is equipped with an upper scraper that can be raised and lowered, and the lower cover is fixed with a lower scraper opposite to the upper scraper.

2. The cold rolling mill cleaning device according to claim 1, characterized in that, The purge hood is threaded with a first adjusting screw, and the first adjusting screw is threaded with a first locking nut above the purge hood. The bottom end of the first adjusting screw is rotatably connected to the upper purge hood, and at least one guide rod is fixedly connected to the top of the upper purge hood. The guide rod slides through the purge hood.

3. The cold rolling mill cleaning device according to claim 1, characterized in that, The purging mechanism also includes an oil stain cleaning fluid storage tank and a pump located outside the purging hood. The input end of the pump is connected to the oil stain cleaning fluid storage tank pipeline, and the output end of the pump is connected to a distribution pipeline. The distribution pipeline is connected to the lower spray head and to the upper spray head through a hose.

4. The cold rolling mill cleaning device according to claim 1, characterized in that, Both the upper and lower spray heads are inclined, and their spraying direction is towards the area between the upper and lower brush rollers.

5. The cold rolling mill cleaning device according to claim 1, characterized in that, There are two upper brush rollers and two lower brush rollers, and the two upper brush rollers and the two lower brush rollers are connected by pulleys and belt drives.

6. The cold rolling mill cleaning device according to claim 1, characterized in that, The upper cover is threaded with a second adjusting screw, and the second adjusting screw is threaded with a second locking nut above the upper cover. The bottom end of the second adjusting screw is rotatably connected to the upper scraper. Limiting grooves are provided on both sides of the inner wall of the blowing hood, and the two ends of the upper scraper are respectively slidably engaged with the two limiting grooves.

7. The cold rolling mill cleaning device according to claim 1, characterized in that, The outlets on the upper and lower flushing pipes are inclined toward the rolled piece.

8. The cold rolling mill purging device according to claim 1, characterized in that, The purging hood is equipped with a sewage tank, which is located below the purging mechanism, rinsing mechanism, and drying mechanism. The bottom of the lower purging hood is connected to a drain pipe that directs waste liquid into the sewage tank.

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