A cold rolling mill oil removal device
By designing a degreasing device for cold rolling mills, and utilizing a combination of degreasing rollers and air blowing components, the problem of residual rolling oil in the cold rolling of thin plates was solved, achieving efficient degreasing and oil reuse, and improving processing accuracy and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU GUOFAN SHEET TECH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-07
AI Technical Summary
During the cold rolling process of thin plates, if rolling oil residue is not removed in time, it will cause the local temperature of the workpiece to rise, affecting the accuracy and potentially causing slippage in subsequent processing steps. Existing technologies are difficult to effectively remove rolling oil.
A degreasing device for a cold rolling mill was designed, including a separator box, a fixed frame and a movable frame, a degreasing roller and an air blowing assembly. The degreasing roller squeezes and the air blowing assembly blows to remove oil from the upper and lower surfaces of the sheet metal. The separator box collects and discharges the rolling oil. The flow equalization plate and guide plate of the air blowing assembly ensure the uniformity of airflow and eliminate dead zones in the airflow.
It achieves efficient degreasing of the sheet surface, prevents splashing, collects and reuses rolling oil, improves degreasing effect and processing accuracy, and avoids slippage in subsequent processing.
Smart Images
Figure CN224463433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold rolling mill technology, specifically to a degreasing device for a cold rolling mill. Background Technology
[0002] When rolling thin metal sheets, cold rolling mills require rolling oil for cooling to suppress the heat generated by deformation and friction. If cooling is not timely, the local temperature of the workpiece may rise sharply, leading to uneven rolling thickness and affecting accuracy. Since the thin metal sheets also require subsequent winding processes, failure to remove oil in a timely manner may cause slippage during later processing steps. Therefore, the design of an oil removal device for the cold rolling mill is necessary to remove oil from the rolled sheet promptly. Utility Model Content
[0003] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a degreasing device for a cold rolling mill, capable of degreasing both the top and bottom surfaces of the rolled sheet.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a degreasing device for a cold rolling mill, comprising:
[0005] A separator box is fixed to the discharge end of the cold rolling mill body, and the separator box has a through material hole;
[0006] A fixed frame and a movable frame, wherein the fixed frame is fixed inside the partition box and located below the board, and the movable frame is lifted and positioned in the partition box above the board;
[0007] Two oil removal rollers are respectively mounted on a fixed frame and a movable frame;
[0008] Two air blowing components are respectively mounted on a fixed frame and a movable frame and located behind the oil removal roller;
[0009] The bottom of the separator box is equipped with an oil drain pipe; the air outlet of the air blowing assembly is inclined to blow the residual rolling oil on the plate forward.
[0010] Preferably, the blowing assembly includes at least two rows of blowing units, each row of blowing units includes multiple blowing nozzles, the top of the blowing nozzles is connected to an air inlet pipe, and all air inlet pipes are connected to an air source through an air delivery pipe.
[0011] Preferably, the blowing nozzle is provided with a flow equalization plate, and the flow equalization plate has mesh holes. The airflow entering through the air inlet pipe passes through the flow equalization plate and is discharged from the air outlet.
[0012] Preferably, multiple guide vanes are provided between the flow equalization plate and the air intake pipe, and the multiple guide vanes are staggered.
[0013] Preferably, multiple turbulence-inducing protrusions are provided on the inner wall of the air-blowing nozzle between the flow equalization plate and the air intake pipe.
[0014] Preferably, the blowing nozzles on adjacent rows of blowing units in the same blowing assembly are staggered.
[0015] Preferably, the movable frame is threaded with two parallel longitudinal rods, which are slidably installed in a guide sleeve on the top of the partition box. The top of the partition box is provided with an adjustment mechanism for adjusting the height of the movable frame.
[0016] Preferably, the adjustment mechanism includes:
[0017] An adjusting rod passes through the top of the partition box and is threaded into the partition box, and the bottom of the adjusting rod passes through the movable frame;
[0018] Two limit rings are respectively set on the adjusting rods on the upper and lower sides of the movable frame.
[0019] Preferably, a spring is fitted onto the adjusting rod between the limiting ring located on the upper side of the movable frame and the movable frame.
[0020] Preferably, the bottom of the separator box is inclined, and the oil drain pipe is located at the lowest point of the bottom of the separator box.
[0021] The beneficial effects of this utility model are as follows:
[0022] This invention features a design with a separator box. The sheet metal passes through the material hole of the separator box, and the oil removal roller removes oil from the sheet metal inside the separator box. This prevents splashing and facilitates the collection of rolling oil on the sheet metal. The rolling oil squeezed off the sheet metal falls into the separator box and is eventually discharged from the oil drain pipe for reuse, achieving the purpose of reusing rolling oil. The air blowing component set behind the oil removal roller can blow high-speed airflow onto the surface of the sheet metal, intercepting the residual rolling oil on the surface of the sheet metal, so that the residual rolling oil eventually slides off from both sides of the sheet metal to the bottom of the separator box, improving the oil removal effect. By setting a flow equalization plate and a flow guide plate in the air blowing nozzle, the airflow sprayed from the outlet can be made more uniform, and the staggered distribution of the air blowing nozzle can effectively eliminate dead airflow corners and fully intercept residual rolling oil. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1A perspective view of the usage state of a cold rolling mill degreasing device provided in an embodiment of this utility model.
[0025] Figure 2 A side view of a cold rolling mill degreasing device in use, provided for an embodiment of this utility model.
[0026] Figure 3 A perspective view of a separator box in a cold rolling mill degreasing device provided for an embodiment of this utility model.
[0027] Figure 4 A cross-sectional view of a separator box in a cold rolling mill degreasing device provided in an embodiment of this utility model.
[0028] Figure 5 This is a schematic diagram of the adjusting mechanism in a cold rolling mill degreasing device provided in an embodiment of the present utility model.
[0029] Figure 6 A top view of an air blowing flat nozzle in a cold rolling mill degreasing device provided in an embodiment of this utility model.
[0030] Figure 7 for Figure 6 Sectional view at point AA.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Cold rolling mill body; 2. Separator box; 3. Material hole; 4. Fixed frame; 5. Movable frame; 6. Degreasing roller; 7. Oil drain pipe; 8. Air outlet; 9. Air blowing nozzle; 10. Air inlet pipe; 11. Air delivery pipe; 12. Flow equalization plate; 13. Guide plate; 14. Turbulence ridge; 15. Longitudinal rod; 16. Guide sleeve; 17. Adjusting rod; 18. Limiting ring; 19. Spring. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Example 1:
[0035] like Figures 1 to 7As shown, Embodiment 1 of this utility model provides a degreasing device for a cold rolling mill, used to degrease the rolled sheet. The degreasing device is installed in a separator box 2, which is fixed to the discharge end of the cold rolling mill body 1 by bolts. The separator box 2 has through-holes 3 on both its front and rear sides, allowing the sheet to pass through the holes 3. In this way, the sheet rolled by the cold rolling mill can pass through the holes 3 and be discharged.
[0036] like Figure 4 As shown, the fixed frame 4 is bolted to the separator box 2 and positioned below the plate, while the movable frame 5 is mounted in the separator box 2 above the plate via a lifting structure, allowing the movable frame 5 to be adjusted in height. Two degreasing rollers 6 are parallel and rotatably mounted on the fixed frame 4 and movable frame 5 respectively. When the plate passes between the two degreasing rollers 6, the rollers 6 are in close contact with the plate surface, allowing the two rollers 6 to simultaneously degrease the upper and lower surfaces of the plate. When the rolling oil on the plate surface encounters the degreasing rollers 6, it is blocked by the rollers 6, gradually accumulates, and slides down from both sides of the plate to the bottom of the separator box 2. The bottom of the separator box 2 is inclined, so the rolling oil automatically converges to the lowest point. The drain pipe 7 is located at the lowest point of the separator box 2, which facilitates the smooth discharge of the rolling oil collected in the separator box 2, ensuring that no excessive rolling oil remains in the separator box 2, making it easy to recycle and reuse.
[0037] like Figure 4 As shown, to further improve the degreasing effect, two air blowing assemblies are installed behind the degreasing roller 6. These two air blowing assemblies are located on the fixed frame 4 and the movable frame 5, respectively, and the air outlets 8 of the air blowing assemblies are inclined. Each air blowing assembly contains two rows of air blowing units, each row with multiple air blowing nozzles 9. The front and rear rows of air blowing nozzles 9 are staggered, so that the air blowing nozzles 9 in the rear row can blow into the dead corners that the two adjacent air blowing nozzles 9 in the front row cannot reach, thus ensuring that the board is thoroughly air-blown. The air inlet pipe 10 connected to the top of the air blowing nozzle 9 is connected to the air source through the air supply pipe 11 to ensure a stable airflow supply.
[0038] During use, the sheet passes through the separator box 2, and the two degreasing rollers 6 squeeze most of the rolling oil off the upper and lower surfaces of the sheet and into the separator box 2. Meanwhile, the high-speed airflow from the air blowing component blows the residual rolling oil on the surface of the sheet forward, causing the residual rolling oil to slide off the sides of the sheet to the bottom of the separator box 2, further improving the degreasing effect.
[0039] Example 2:
[0040] Based on Embodiment 1, this utility model proposes Embodiment 2, in which the blowing nozzle 9 is further improved. For example... Figure 6 and Figure 7As shown, a flow equalization plate 12 is provided inside the air blowing nozzle 9, with mesh holes evenly distributed on the flow equalization plate 12. Multiple guide plates 13 are also staggered between the flow equalization plate 12 and the air inlet pipe 10. Multiple turbulence-inducing protrusions 14 are provided on the inner wall of the air blowing nozzle 9 between the flow equalization plate 12 and the air inlet pipe 10. The airflow entering from the air inlet pipe 10 is first dispersed and guided by the guide plates 13 before reaching the flow equalization plate 12, making the airflow more orderly distributed. The turbulence-inducing protrusions 14 further improve the uniformity of the airflow. The airflow is then dispersed and combed by the flow equalization plate 12, allowing it to be discharged more evenly from the air outlet 8 after passing through the mesh holes, thus ensuring a more uniform and stable airflow ejected from the air outlet 8. This can more effectively intercept residual rolling oil on the surface of the plate. The intercepted residual rolling oil gradually accumulates and falls off from both sides of the plate, further improving the degreasing effect.
[0041] Example 3:
[0042] Based on Embodiments 1 and 2, this utility model proposes Embodiment 3, in which the lifting structure of the movable frame 5 is further refined. For example... Figure 4 and Figure 5 As shown, firstly, two parallel longitudinal rods 15 are threadedly installed on the movable frame 5. The longitudinal rods 15 can slide within the guide sleeve 16 fixedly installed on the top of the separator box 2, ensuring the stability of the movable frame 5 during the lifting process. The adjustment mechanism set on the top of the separator box 2 is used to adjust the height of the movable frame 5 according to the thickness of the plate, so that the degreasing roller 6 is in close contact with the surface of the plate.
[0043] The adjustment mechanism includes an adjustment rod 17 that passes through the top of the separator box 2 and is threaded into it, with the bottom of the adjustment rod 17 passing through the movable frame 5. Two limiting rings 18 are fixed to the adjustment rod 17 on both the upper and lower sides of the movable frame 5 to limit the range of motion of the movable frame 5 on the adjustment rod 17. A spring 19 is fitted onto the adjustment rod 17 between the limiting ring 18 on the upper side of the movable frame 5 and the movable frame 5. The presence of the spring 19 allows the limiting ring 18 to elastically press the movable frame 5 downwards, maintaining a certain pressure between the degreasing roller 6 and the plate.
[0044] This adjustment mechanism allows for flexible adjustment of the distance between the oil removal roller 6 on the movable frame 5 and the board material according to different thicknesses, thereby achieving efficient oil removal operation for boards of different specifications.
[0045] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A degreasing device for a cold rolling mill, characterized in that, include: A separator box is fixed to the discharge end of the cold rolling mill body, and the separator box has a through material hole; A fixed frame and a movable frame, wherein the fixed frame is fixed inside the partition box and located below the board, and the movable frame is lifted and positioned in the partition box above the board; Two oil removal rollers are respectively mounted on a fixed frame and a movable frame; Two air blowing components are respectively mounted on a fixed frame and a movable frame and located behind the oil removal roller; The bottom of the separator box is equipped with an oil drain pipe; the air outlet of the air blowing assembly is inclined to blow the residual rolling oil on the plate forward.
2. The degreasing device for a cold rolling mill as described in claim 1, characterized in that, The blowing assembly includes at least two rows of blowing units, each row of blowing units includes multiple blowing nozzles, the top of the blowing nozzles is connected to an air inlet pipe, and all air inlet pipes are connected to an air source through an air delivery pipe.
3. The degreasing device for a cold rolling mill as described in claim 2, characterized in that, The blowing nozzle is equipped with a flow equalization plate, which has mesh openings. The airflow entering through the air inlet pipe passes through the flow equalization plate and is discharged from the air outlet.
4. The degreasing device for a cold rolling mill as described in claim 3, characterized in that, Multiple guide plates are provided between the flow equalization plate and the air intake pipe, and the multiple guide plates are staggered.
5. The degreasing device for a cold rolling mill as described in claim 3, characterized in that, Multiple turbulence protrusions are provided on the inner wall of the air blowing nozzle between the flow equalization plate and the air intake pipe.
6. The degreasing device for a cold rolling mill as described in claim 2, characterized in that, The blowing nozzles on adjacent rows of blowing units in the same blowing assembly are staggered.
7. The degreasing device for a cold rolling mill as described in claim 1, characterized in that, The movable frame is threaded with two parallel longitudinal rods, which are slidably installed in the guide sleeve at the top of the partition box. The top of the partition box is provided with an adjustment mechanism for adjusting the height of the movable frame.
8. The degreasing device for a cold rolling mill as described in claim 7, characterized in that, The adjustment mechanism includes: An adjusting rod passes through the top of the partition box and is threaded into the partition box, and the bottom of the adjusting rod passes through the movable frame; Two limit rings are respectively set on the adjusting rods on the upper and lower sides of the movable frame.
9. The degreasing device for a cold rolling mill as described in claim 8, characterized in that, A spring is fitted onto the adjusting rod between the limiting ring located on the upper side of the movable frame and the movable frame.
10. The degreasing device for a cold rolling mill as described in claim 1, characterized in that, The bottom of the separator is inclined, and the oil drain pipe is located at the lowest point of the bottom of the separator.