Edge residue purging device for leveling liquid

By designing a manual linear module and a flat liquid edge residual purge device for C-shaped curved beam, the problem of residual liquid at the edge of the strip steel is solved, the material yield and surface quality of the strip steel are improved, and the risk of rust is reduced.

CN223288724UActive Publication Date: 2025-09-02JIANGSU DONGFANG JIUTIAN NEW ENERGY MATERIALS CO LTD
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Patent Information

Application Number
CN202422097944.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2025-09-02
Estimated Expiration
2034-08-28

AI Technical Summary

Technical Problem

Existing flat liquid purge devices cannot effectively remove flat liquid residues from the edges of strip steel, resulting in surface quality problems and rust risks.

Method used

A flat liquid edge residual purge device including a manual linear module, a slider, a C-shaped bend beam and a silence nozzle is designed. By adjusting the nozzle distance and angle, it can achieve efficient purge using a stainless steel bent pipe and a spherical silence nozzle.

Benefits of technology

Effectively reduce the residue of flat liquid on the edges of the strip, improve the material yield, reduce the risk of rust, improve the surface quality, and avoid defects such as unevenness, bubbles, and water marks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a leveling liquid edge residue purging device which comprises a manual linear module, a sliding block, a C-shaped camber beam and silencing nozzles, the sliding block is arranged at the upper end of the manual linear module in a sliding mode, the C-shaped camber beam is fixedly arranged on the sliding block, and the silencing nozzles matched with strip steel are arranged at the upper end and the lower end of the C-shaped camber beam. According to the device for purging the edge residues of the leveling liquid, the yield of strip steel can be improved, after the residues of the leveling liquid are reduced, the rusting condition of the edge can be effectively reduced, the waste of materials is reduced, the appearance and the functional performance of the strip steel are improved, the surface defects of unevenness, bubbles, water marks and the like are avoided, and the service life of the strip steel is prolonged. The problems that an existing leveling liquid blowing device can only blow away leveling liquid residues in the middle of strip steel and cannot blow away excessive leveling liquid on the edge are effectively solved.
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Description

Technical Field

[0001] The utility model relates to the field of strip steel leveling equipment, in particular to a leveling liquid edge residual blowing device. Background Art

[0002] Leveling fluid plays a vital role in the strip leveling process:

[0003] 1. Cooling effect: The leveling liquid forms a liquid film on the surface of the strip, which absorbs the heat from the strip surface through evaporation or other cooling methods, thus playing a cooling role;

[0004] 2. Lubrication: The leveling fluid can form a lubricating film on the surface of the strip, reducing the friction between the strip and the work roll, thereby reducing wear and extending the life of the work roll;

[0005] 3. Cleaning function: remove dirt from the surface of the strip and the working roll;

[0006] 4. Anti-rust effect: After leveling, the steel coil has a certain anti-rust function during storage.

[0007] At the same time, the residual amount of leveling fluid is also one of the important evaluation indicators for evaluating the surface quality of the strip after leveling. A large amount of leveling fluid remaining on the strip surface will cause the following effects:

[0008] 1. Surface quality issues: Excessive leveling fluid residue may cause uneven coating or film on the strip surface, affecting the surface quality of the product. This may include surface defects such as unevenness, bubbles, and water marks, thereby reducing the appearance and functional performance of the product;

[0009] 2. Rusting of steel plates: After leveling, excessive leveling liquid residue enters the interior of the steel coil, which will corrode the surface of the strip during later storage and cause rust spots, resulting in serious quality problems of the strip.

[0010] Therefore, a crossbeam purge system is installed at the mill exit. Existing leveling fluid purge systems include upper and lower work roll gap purges at the strip exit. As the work rolls squeeze and level the strip, gaps form between the ends of the strip and the work rolls. Leveling fluid introduced from the inlet is squeezed out to the ends, where it is carried along the strip's edges to the exit. The purge system removes any remaining leveling fluid from the center of the strip, but excess leveling fluid at the edges cannot be removed. Therefore, developing a device to purge residual leveling fluid from the edges has become a pressing issue for those skilled in the art. Utility Model Content

[0011] The utility model aims to provide a device for blowing off residual leveling liquid on the edge, which solves the problem that the existing device can only blow off the residual leveling liquid in the middle of the strip but cannot blow off the excessive leveling liquid on the edge.

[0012] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0013] The utility model provides a device for blowing out residuals on the edges of leveling liquid, which includes a manual linear module, a slider, a C-shaped curved beam and a silencer nozzle. The slider is slidably arranged at the upper end of the manual linear module, the C-shaped curved beam is fixedly arranged on the slider, and the upper and lower ends of the C-shaped curved beam are provided with silencer nozzles that cooperate with the strip steel.

[0014] Furthermore, the lower end of the C-shaped curved beam is fixedly provided with a silencer nozzle that cooperates with the edge of the lower surface of the strip; the upper end of the C-shaped curved beam is fixedly provided with a silencer nozzle that cooperates with the edge of the upper surface of the strip.

[0015] Furthermore, a nozzle connection seat is provided on the C-shaped curved beam, and the nozzle connection seat is connected to the silencer nozzle through a universal joint.

[0016] Furthermore, the top end of the silencing nozzle is threadedly engaged with the nozzle connecting seat.

[0017] Furthermore, the lead screw in the manual linear module is threadedly engaged with the slider.

[0018] Furthermore, a handwheel for driving the lead screw is provided on the outer end surface of the manual linear module.

[0019] Furthermore, the lead screw on the inner end surface of the manual linear module is connected to the lead screw of the manual linear module on the other side through a coupling and a connecting shaft.

[0020] Furthermore, an air intake pipe connected to the silencer nozzle is provided at the front end of the C-shaped curved beam. The C-shaped curved beam is a stainless steel bent tube as a whole, and a cavity is formed inside.

[0021] Furthermore, a main air outlet is provided at the lower end of the muffler nozzle, and a plurality of air flow channels are provided around the edge of the main air outlet.

[0022] Furthermore, the number of the air flow channels is twelve.

[0023] Compared with the prior art, the beneficial technical effects of the present invention are:

[0024] The installation position of the smoothing liquid edge residue blowing device of the utility model is set after the crossbeam blowing and before entering the next roller. The left and right nozzle distances can be adjusted according to the different strip widths to ensure that the strip edge can be effectively blown even if the strip width is different, and the application range is wide; the C-shaped bent beam of the smoothing liquid edge residue blowing device of the utility model is a stainless steel bent tube as a whole, forming a cavity inside, and the interior of the cavity is narrow, so that the airflow loss is small and the pressure is large. The internal shape of the silencer nozzle of the leveling liquid edge residue blowing device of the utility model is spherical, so the blowing angle can be adjusted. The angle can be adjusted according to the blowing effect during actual use. Each nozzle has a main air outlet and 12 air flow channels are distributed around it. When working, the airflow around it forms an air flow cover to protect the middle main airflow from being dispersed, so that the blowing effect is better; in general, the leveling liquid edge residue blowing device of the utility model can improve the yield rate of strip steel. After the leveling liquid residue is reduced, it can effectively reduce the rust on the edge, reduce material waste, improve the appearance and functional performance of the strip steel, avoid the occurrence of surface defects such as unevenness, bubbles, water marks, etc., and effectively solve the problem that the existing leveling liquid blowing device can only blow away the leveling liquid residue in the middle of the strip steel, but cannot blow away excessive leveling liquid on the edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] Figure 1 This is a front view of the device for blowing off residual leveling liquid at the edge of the utility model;

[0027] Figure 2 This is a side view of the device for blowing off residual leveling liquid on the edge of the utility model;

[0028] Figure 3 This is the front view of the silencer nozzle;

[0029] Figure 4 This is a top view of the silencer nozzle;

[0030] Figure 5 This is the axonometric view of the silencer nozzle (angle 1);

[0031] Figure 6 This is the axonometric view of the silencer nozzle (angle 2);

[0032] Figure 7 Diagram of different working states of the leveling liquid edge residue blowing device of the utility model.

[0033] Explanation of the accompanying symbols: 1. Manual linear module; 101. Handwheel; 102. Coupling; 103. Connecting shaft; 104. Slider; 2. C-shaped curved beam; 201. Nozzle connecting seat; 202. Air inlet pipe; 3. Silencer nozzle; 301. Main air outlet; 302. Air flow channel. DETAILED DESCRIPTION

[0034] like Figures 1 to 7 As shown, a device for blowing out residual leveling liquid on the edge includes a manual linear module 1, a slider 104, a C-shaped curved beam 2 and a silencer nozzle 3. The slider 104 is slidably arranged on the upper end of the manual linear module 1, and the C-shaped curved beam 2 is fixedly arranged on the slider 104. The upper and lower ends of the C-shaped curved beam 2 are provided with silencer nozzles 3 that cooperate with the strip steel.

[0035] The lead screw within the manual linear module 1 is threadedly engaged with the slider 104. A handwheel 101 is provided on the outer end face of the manual linear module 1 to drive the lead screw. The lead screw on the inner end face of the manual linear module 1 is connected to the lead screw of the other manual linear module 1 via a coupling 102 and a connecting shaft 103. During use, the distance between the left and right nozzles can be adjusted to suit the width of the strip, ensuring effective blowing to the edges of the strip even with varying strip widths.

[0036] Specifically, the lower end of the C-shaped curved beam 2 is fixedly provided with a silencer nozzle 3 that cooperates with the edge of the lower surface of the strip; the upper end of the C-shaped curved beam 2 is fixedly provided with a silencer nozzle 3 that cooperates with the edge of the upper surface of the strip.

[0037] The C-shaped curved beam 2 is provided with a nozzle connection seat 201, which is connected to the muffler nozzle 3 via a universal joint. The internal shape of the muffler nozzle 3 is spherical, so the purge angle can be adjusted. In actual use, the angle can be adjusted according to the purge effect.

[0038] The top end of the muffler nozzle 3 is threadedly engaged with the nozzle connecting seat 201 .

[0039] The front end of the C-shaped curved beam 2 is provided with an air inlet pipe 202 connected to the muffler nozzle 3. The C-shaped curved beam 2 is a stainless steel bent pipe with a cavity formed inside. The air inlet pipe 202 is connected to an external compressed air source.

[0040] The lower end of the muffler nozzle 3 is provided with a main air outlet 301 with a diameter of 4 mm. Surrounding the edge of the main air outlet 301 are several air flow channels 302. There are twelve air flow channels 302. During operation, the surrounding airflow forms an airflow shield to prevent the central main airflow from dispersing.

[0041] Before the strip passes through the device for blowing away residual leveling liquid on the edge of the present invention, the muffler nozzle 3 is tilted inward at 45°. When the wind force can be clearly felt at the edge of the strip with a finger, the blowing angle is optimal.

[0042] Before the compressed air enters the leveling liquid edge residue purging device of the utility model, a pressure regulating valve is installed to increase the inlet pressure and improve the purging effect.

[0043] After many tests, it is proved that after the strip passes through the utility model of the flattening liquid edge residue blowing device, the edge flattening liquid residue is significantly reduced. The edge watermark before installation is 20 to 30 mm, and the watermark after installation is 4 to 5 mm.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A device for blowing off residual leveling liquid at the edge, characterized in that: The invention comprises a manual linear module (1), a slider (104), a C-shaped curved beam (2) and a silencer nozzle (3), wherein the slider (104) is slidably arranged at the upper end of the manual linear module (1), the C-shaped curved beam (2) is fixedly arranged on the slider (104), and the upper and lower ends of the C-shaped curved beam (2) are provided with silencer nozzles (3) that cooperate with the strip steel; the lower end of the C-shaped curved beam (2) is fixedly provided with a silencer nozzle (3) that cooperates with the edge of the lower surface of the strip steel; the upper end of the C-shaped curved beam (2) is fixedly provided with a silencer nozzle (3) that cooperates with the edge of the upper surface of the strip steel; the C-shaped curved beam (2) is provided with a nozzle connecting seat (201), and the nozzle connecting seat (201) is connected to the silencer nozzle (3) through a universal joint; the lower end of the silencer nozzle (3) is provided with a main air outlet (301), and the edge of the main air outlet (301) is surrounded by a plurality of air flow channels (302).

2. The device for purging residual leveling liquid from edges according to claim 1, characterized in that: The top end of the muffler nozzle (3) is threadably engaged with the nozzle connection seat (201).

3. The device for purging residual leveling liquid from edges according to claim 1, characterized in that: The lead screw in the manual linear module (1) is threadedly engaged with the slider (104).

4. The device for purging residual leveling liquid from edges according to claim 3, characterized in that: A hand wheel (101) for driving the lead screw is provided on the outer end surface of the manual linear module (1).

5. The device for purging residual leveling liquid from edges according to claim 4, characterized in that: The lead screw on the inner end surface of the manual linear module (1) is connected to the lead screw of the manual linear module (1) on the other side via a coupling (102) and a connecting shaft (103).

6. The device for purging residual leveling liquid from edges according to claim 1, characterized in that: An air intake pipe (202) connected to the muffler nozzle (3) is provided at the front end of the C-shaped curved beam (2); the C-shaped curved beam (2) is a stainless steel bent pipe as a whole, with a cavity formed inside.

7. The device for purging residual leveling liquid from edges according to claim 1, characterized in that: The number of the air flow channels (302) is twelve.