Blowback oil removal device of rolling mill

Abstract

The utility model provides a reverse blowing oil removal device of a rolling mill, which relates to the technical field of metallurgical equipment and comprises a reverse blowing plate, a hinge type flange and a hydraulic oil cylinder. The upper portions of the two sides of the blowback plate are connected with the hydraulic oil cylinders through the hinge type flanges, and the hydraulic oil cylinders are installed on window faces on the two sides of a rolling mill housing. And the piston rod of the hydraulic oil cylinder stretches out and retracts to drive the blowback plate to move up and down, so that the blowback plate is opened and closed. According to the utility model, the cooling medium on the surface of the strip is effectively removed; and meanwhile, the coiling of the coiling machine in the rolling process can be improved, and the slipping of the strip and the deviation of a material coil are avoided, so that the possibility of strip breakage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a rolling mill back-blowing oil removal device. Background Art

[0002] In the field of material processing, especially in the calendering process of precision thin strips, the rolling process is a key step to ensure product quality and performance. During the rolling process, in order to control the temperature and shape of the material, cooling media such as coolant, water or oil are often used to reduce the temperature of the rolls and strips. However, these cooling media often remain on the surface of the strip after rolling, which not only affects the subsequent coiling process, but also may increase the risk of strip slippage and coil deviation, thereby leading to an increase in the rate of strip breakage failures.

[0003] Existing methods for removing cooling media from the strip surface mainly include mechanical wiping, blowing or vacuum adsorption. However, these methods have many challenges when processing precision thin strips. First, mechanical wiping may damage the surface of the strip, affecting the appearance quality and mechanical properties of the product. Second, although blowing or vacuum adsorption can remove part of the cooling medium, the removal effect is not ideal for the cooling medium attached to the tiny gaps or depressions on the surface of the strip.

[0004] Therefore, a rolling mill back-blowing oil removal device is proposed. Utility Model Content

[0005] This specification provides a rolling mill back-blowing oil removal device, which effectively removes the cooling medium on the surface of the strip; at the same time, it helps to improve the coiling of the strip by the coiler during the rolling process, avoids strip slippage and coil deviation, and thus reduces the possibility of strip breakage.

[0006] This specification provides a rolling mill back-blowing oil removal device, comprising:

[0007] Blowback plate, hinged flange, hydraulic cylinder;

[0008] The upper parts of both sides of the back-blowing plate are connected to the hydraulic cylinder through the hinged flange, and the hydraulic cylinder is installed on the window surfaces on both sides of the rolling mill arch; the back-blowing plate is driven to move up and down by extending and contracting the piston rod of the hydraulic cylinder, thereby realizing the opening and closing of the back-blowing plate.

[0009] Optional, including:

[0010] For single-pass rolling, the back-blowing oil removal device is installed at the exit side of the rolling mill;

[0011] For reciprocating rolling, the back-blowing oil removal device is installed on the window processing surfaces on both sides of the inlet and outlet of the rolling mill.

[0012] Optionally, it includes: two copper alloy slide plates are fixed on both sides of the backblowing plate by bolts, and the copper alloy slide plates cooperate with sliding guide rails installed on the inlet and outlet sides of the rolling mill to achieve that when the backblowing plate moves up and down, the copper alloy slide plates slide synchronously in the sliding guide rails, and can also fix the backblowing plate along the rolling direction while providing guidance.

[0013] Optionally, it includes: a back-blowing medium access connection joint and a plurality of back-blowing nozzles, wherein the back-blowing medium access connection joint is installed on the top of the back-blowing plate, and the plurality of back-blowing nozzles are installed on the bottom of the back-blowing plate;

[0014] The back-blowing medium connected through the back-blowing medium connection joint is sprayed onto the strip surface at a higher pressure through a plurality of back-blowing nozzles, and in the opposite direction to the rolling direction during the operation of the rolling mill so as to block the back-blowing medium, thereby keeping the strip surface dry.

[0015] Optionally, the backflush medium includes coolant and compressed air.

[0016] Optional, including:

[0017] The arrangement and angle of the back-blowing nozzles are adjustable, so that the coverage and impact force of the back-blowing medium on the strip surface can be adjusted, thereby more effectively removing the cooling medium on the strip surface.

[0018] Optionally, the backblowing plate further includes a temperature monitoring element and a heating element. When the temperature monitoring element detects that the temperature of the backblowing plate is too low, the heating element automatically starts to increase the temperature of the backblowing plate, thereby preventing condensation caused by a large temperature difference between the low temperature of the backblowing plate and the surface of the strip.

[0019] In the utility model, through the synergistic effect of the back-blowing nozzle and the scraper, the device can efficiently remove the cooling medium on the surface of the strip, ensure the cleanliness of the strip surface, and provide favorable conditions for subsequent coiling and processing. The clean strip surface helps to improve the performance of the coiler when coiling the strip, reduce the problem of uneven curling or coil deviation caused by residual medium on the strip surface, and thus improve the coiling efficiency. Due to the thorough removal of the cooling medium, the friction between the strip and the coiler is enhanced, which effectively prevents the strip from slipping during the coiling process and further reduces the risk of coil deviation. By optimizing the surface state of the strip during the rolling process, the device significantly reduces the possibility of strip breakage, improves the stability of the rolling process and the qualified rate of the product. Since the cooling medium is effectively removed, unnecessary waste is reduced, production costs are reduced, and it also meets the environmental protection requirements of energy conservation and emission reduction. By improving the surface state of the strip during the rolling process, the device improves the yield rate of the product and brings greater economic benefits to the enterprise. In addition to reducing the consumption of cooling medium, the device also reduces the scrap rate and maintenance costs by improving the stability of the rolling process and the qualified rate of products, further reducing the overall production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the structure of a rolling mill back-blowing oil removal device from a single side view provided in an embodiment of this specification.

[0022] The attached drawings illustrate: 1. back-blowing plate; 2. hinged flange; 3. hydraulic cylinder; 4. copper alloy slide plate; 5. sliding guide rail; 6. back-blowing medium access connection joint; 7. back-blowing nozzle. DETAILED DESCRIPTION

[0023] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0024] The following is combined with Figure 1The exemplary embodiments of the present invention are described more fully. However, the exemplary embodiments can be implemented in various forms, and it should not be understood that the present invention is limited to the embodiments set forth herein. On the contrary, providing these exemplary embodiments can make the present invention more comprehensive and complete, and it is more convenient to fully convey the concept of the utility model to those skilled in the art. The same reference numerals in the figures represent the same or similar elements, components or parts, and thus their repeated description will be omitted.

[0025] Under the premise of conforming to the technical concept of the present invention, the features, structures, characteristics or other details described in a specific embodiment do not exclude that they can be combined in one or more other embodiments in a suitable manner.

[0026] In the description of specific embodiments, the features, structures, characteristics or other details described in the present invention are intended to enable those skilled in the art to fully understand the embodiments. However, it does not exclude that those skilled in the art can practice the technical solution of the present invention without one or more of the specific features, structures, characteristics or other details.

[0027] The term "and / or" or "and / or" includes all combinations of any one or more of the associated listed items.

[0028] like Figure 1 As shown, this specification provides a rolling mill back-blowing oil removal device, comprising:

[0029] Blowback plate 1, hinged flange 2, hydraulic cylinder 3; The upper parts of both sides of the blowback plate 1 are connected to the hydraulic cylinder 3 through the hinged flange 2. The hinged flange 2 is on the upper parts of both sides of the blowback plate 1, which not only plays a connecting role, but also allows the blowback plate 1 to rotate and move flexibly within a specific angle range, ensuring that the blowback plate 1 can operate smoothly when opened and closed, reducing mechanical wear and improving the service life of the equipment. The hydraulic cylinder 3 is installed on the window surface on both sides of the rolling mill arch. The blowback plate 1 is driven to move up and down by the extension and contraction of the piston rod of the hydraulic cylinder 3, thereby realizing the opening and closing of the blowback plate 1. When the blowback plate 1 needs to be opened, the piston rod of the hydraulic cylinder 3 will extend outward, push the blowback plate 1 to move upward, open the channel below it, and allow materials to pass through. When the blowback plate 1 needs to be closed, the piston rod will retract inward, pull the blowback plate 1 to move downward, close the channel, and prevent material leakage. During the whole process, the hydraulic cylinder 3 has a fast response speed and high control accuracy, which ensures the accuracy and reliability of opening and closing of the back-blowing plate 1.

[0030] For single-pass rolling, the rolled material is discharged from the outlet side after completing one rolling in the rolling mill. During this process, rolling oil may be attached to the surface of the rolled material. In order to remove the rolling oil and improve the surface quality of the rolled material, a back-blowing oil removal device is installed on the outlet side of the rolling mill. Driven by the hydraulic cylinder 3, the back-blowing plate 1 moves up and down, thereby opening or closing. When the rolled material is discharged from the outlet side of the rolling mill, the back-blowing plate 1 is opened, and the rolling oil on the surface of the rolled material is blown away by airflow or other means.

[0031] For reciprocating rolling, the rolled material is rolled back and forth in the rolling mill for many times. Since the rolled material passes through the rollers in the rolling mill many times, there may be more rolling oil on the surface of the rolled material. In order to ensure the surface quality of the rolled material, it is necessary to install back-blowing and oil removal devices on both sides of the inlet and outlet of the rolling mill. Similarly, through the drive of the hydraulic cylinder 3, the back-blowing plates 1 on both sides of the inlet and outlet can be opened or closed independently. Before the rolled material enters the rolling mill and after it leaves the rolling mill, the back-blowing plates on both sides will be opened to remove oil from the surface of the rolled material.

[0032] In order to achieve stable movement of the back-blowing plate, two copper alloy slide plates 4 are fixed on both sides of the back-blowing plate by bolts. These two copper alloy slide plates 4 not only provide support for the back-blowing plate, but also enhance its sliding performance. The copper alloy slide plate 4 is closely matched with the sliding guide rail 5 installed on the side of the inlet and outlet of the rolling mill. The sliding guide rail 5 is precisely processed, with a smooth surface and wear resistance, which can ensure that the copper alloy slide plate 4 slides smoothly inside it. When the hydraulic cylinder 3 drives the back-blowing plate 1 to move up and down, the copper alloy slide plate 4 slides synchronously in the sliding guide rail 5, providing precise guidance for the movement of the back-blowing plate 1. This not only ensures the stability and reliability of the back-blowing plate 1 during the up and down movement, but also helps to fix the back-blowing plate 1 along the rolling direction to prevent it from offsetting or shaking during the working process. The cooperation between the copper alloy slide plate 4 and the sliding guide rail 5 enables the back-blowing plate 1 to maintain a constant position and angle during the rolling process, thereby ensuring effective degreasing of the surface of the rolled material. In addition, the copper alloy slide plate 4 also has good wear resistance and corrosion resistance, and can operate stably for a long time in harsh working environments. The selection of this material not only prolongs the service life of the blowback plate 1, but also reduces maintenance costs and improves the overall operating efficiency of the rolling mill.

[0033] The back-blowing medium access connection joint 6 and a plurality of back-blowing nozzles 7 are installed at the top of the back-blowing plate, and a plurality of back-blowing nozzles 7 are installed at the bottom of the back-blowing plate 1; the back-blowing medium accessed through the back-blowing medium access connection joint 6 is sprayed to the strip surface at a higher pressure through the plurality of back-blowing nozzles 7, and in the opposite direction to the rolling direction during the operation of the rolling mill to block the back-blowing medium, thereby keeping the strip surface dry. The back-blowing medium includes coolant and compressed air.

[0034] The arrangement and angle of the back-blowing nozzle 7 are adjustable, so as to adjust the coverage and impact force of the back-blowing medium on the strip surface, thereby more effectively removing the cooling medium on the strip surface.

[0035] The blowback plate 1 also includes a temperature monitoring element and a heating element. When the temperature monitoring element detects that the temperature of the blowback plate 1 is too low, the heating element automatically starts to increase the temperature of the blowback plate 1, thereby preventing condensation caused by a large temperature difference between the low temperature of the blowback plate 1 and the surface of the strip.

[0036] During the rolling process from right to left, after the operator starts the rolling mill, the hydraulic cylinder 3 on the left side begins to extend, driving the backflush plate 1 to move downward to its lowest position through the sliding guide rail 5. At this time, the backflush plate 1 maintains a precise distance of 25 mm from the upper surface of the strip to ensure that the rolling process is not interfered with. At the same time, the scraper plate installed on the backflush plate 1 maintains a close contact of about 5 mm with the upper surface of the strip, so as to more effectively remove the cooling medium on the surface of the strip. As the action of the hydraulic cylinder 3 is completed, the electromagnetic switch valve controlling the backflush nozzle 7 is immediately opened, and the high-pressure backflush medium is ejected from the backflush nozzle 7, blowing toward the surface of the strip in a direction completely opposite to the rolling direction, and strongly removing the residual cooling medium. In addition, the scraper rubber plate on the backflush plate 1 also plays a key role, assisting in removing and blocking the remaining cooling medium on the surface of the strip to ensure the cleanliness of the strip surface. During the entire working process, the backflush plate 1 on the right side remains in the upper open state until the rolling direction of the rolling mill changes. When the rolling direction of the rolling mill changes from left to right, the control system will automatically adjust, the back-blowing plate 1 on the left will be lifted, and the back-blowing plate 1 on the right will open downward and start working according to the same action logic to ensure the continuity of the rolling process and the cleanliness of the strip surface.

[0037] In the utility model, through the synergistic effect of the back-blowing nozzle 7 and the scraper, the device can efficiently remove the cooling medium on the surface of the strip, ensure the cleanliness of the strip surface, and provide favorable conditions for subsequent coiling and processing. The clean strip surface helps to improve the performance of the coiler when coiling the strip, reduce the problem of uneven curling or coil deviation caused by residual medium on the strip surface, and thus improve the coiling efficiency. Due to the thorough removal of the cooling medium, the friction between the strip and the coiler is enhanced, which effectively prevents the strip from slipping during the coiling process and further reduces the risk of coil deviation. By optimizing the surface state of the strip during the rolling process, the device significantly reduces the possibility of strip breakage, improves the stability of the rolling process and the qualified rate of the product. Since the cooling medium is effectively removed, unnecessary waste is reduced, production costs are reduced, and it also meets the environmental protection requirements of energy conservation and emission reduction. By improving the surface state of the strip during the rolling process, the device improves the yield rate of the product and brings greater economic benefits to the enterprise. In addition to reducing the consumption of cooling medium, the device also reduces the scrap rate and maintenance costs by improving the stability of the rolling process and the qualified rate of products, further reducing the overall production cost.

[0038] The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the utility model is not inherently related to any specific computer, virtual device or electronic device, and various general devices can also implement the utility model. The above description is only a specific embodiment of the utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

[0039] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0040] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A rolling mill back-blowing oil removal device, characterized in that: include: Backflush plate (1), hinged flange (2), hydraulic cylinder (3); The upper parts of both sides of the back-blowing plate (1) are connected to the hydraulic cylinder (3) through the hinged flange (2), and the hydraulic cylinder (3) is installed on the window surfaces on both sides of the rolling mill arch; the back-blowing plate (1) is driven to move up and down by extending and contracting the piston rod of the hydraulic cylinder (3), thereby realizing the opening and closing of the back-blowing plate (1).

2. The rolling mill back-blowing oil removal device according to claim 1, characterized in that: include: For single-pass rolling, the back-blowing oil removal device is installed at the exit side of the rolling mill; For reciprocating rolling, the back-blowing oil removal device is installed on the window processing surfaces on both sides of the inlet and outlet of the rolling mill.

3. The rolling mill back-blowing oil removal device according to claim 2, characterized in that: include: Two copper alloy slide plates (4) are fixed on both sides of the back-blowing plate (1) by bolts. The copper alloy slide plates (4) cooperate with sliding guide rails (5) installed on the inlet and outlet sides of the rolling mill to achieve that when the back-blowing plate (1) moves up and down, the copper alloy slide plates (4) slide synchronously in the sliding guide rails (5), thereby providing guidance and fixing the back-blowing plate (1) along the rolling direction.

4. The rolling mill back-blowing oil removal device according to claim 3, characterized in that: include: A back-blowing medium access connection joint (6) and a plurality of back-blowing nozzles (7), wherein the back-blowing medium access connection joint (6) is installed on the top of the back-blowing plate, and the plurality of back-blowing nozzles (7) are installed on the bottom of the back-blowing plate (1); The back-blowing medium connected through the back-blowing medium connection joint (6) is sprayed onto the strip surface at a relatively high pressure through a plurality of back-blowing nozzles (7), and in the opposite direction to the rolling direction during the operation of the rolling mill so as to block the back-blowing medium, thereby keeping the strip surface dry.

5. The rolling mill back-blowing oil removal device according to claim 4, characterized in that: The back-blowing medium includes coolant and compressed air.

6. The rolling mill back-blowing oil removal device according to claim 5, characterized in that: include: The arrangement and angle of the back-blowing nozzle (7) are adjustable, so as to adjust the coverage and impact force of the back-blowing medium on the strip surface, thereby more effectively removing the cooling medium on the strip surface.

7. The rolling mill back-blowing oil removal device according to claim 6, characterized in that: The back-blowing plate (1) further comprises a temperature monitoring element and a heating element. When the temperature monitoring element detects that the temperature of the back-blowing plate (1) is too low, the heating element automatically starts to increase the temperature of the back-blowing plate (1), thereby preventing condensation caused by a large temperature difference between the low temperature of the back-blowing plate (1) and the surface of the strip.

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