A roll cleaner system with oil negative pressure oil removing device

Abstract

The utility model relates to a kind of with oil negative pressure oil removal device's roll cleaner system, wherein with oil negative pressure oil removal device's roll cleaner system includes upper roll cleaner, and upper roll cleaner includes first scraper, second scraper, upper protective shell, upper air negative pressure generator, one end of first scraper, second scraper is installed on upper protective shell, and the other end of first scraper, second scraper is elastically attached on upper support roll, and first scraper, second scraper, upper protective shell form upper cavity, and upper air negative pressure generator is installed on upper protective shell, and upper air negative pressure generator is connected with upper cavity;Lower roll cleaner is same with upper roll cleaner, and design is same.The utility model can form the cavity by two scrapers and protective shell, and air negative pressure generator is used to oil cavity, improve the operation efficiency of scraper type roll cleaner.

Description

Technical Field

[0001] This utility model relates to an aluminum foil rolling mill, and more particularly to a cleaning roller system with an oil-containing negative pressure oil removal device. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.

[0003] During aluminum foil rolling, rolling oil easily adheres to the surface of the support rollers. Traditional roller cleaners (such as scraper-type and brush-type) rely solely on mechanical scraping to remove the oil, but they cannot completely remove the residual oil film at the roller gaps, resulting in oil on the aluminum foil surface and defects such as oil spots and color differences. The residual oil may seep into the aluminum foil surface under rolling pressure, affecting subsequent annealing, slitting, and other processes, increasing the scrap rate.

[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0005] The purpose of this invention is to provide a cleaning roller system with an oil-absorbing negative pressure oil removal device. The system can improve the operating efficiency of the scraper-type cleaning roller by drawing oil into the cavity formed by two scrapers and a protective shell with the help of an air negative pressure generator.

[0006] To achieve the above objectives, this utility model discloses a roller cleaning system with an oil-bearing negative pressure degreasing device for cleaning a four-high rolling mill. The four-high rolling mill includes an upper work roll, a lower work roll, an upper support roll, and a lower support roll. The upper work roll and the lower work roll are attached and opposite to each other. The upper support roll is attached to the side of the upper work roll opposite to the lower work roll, and the lower support roll is attached to the side of the lower work roll opposite to the upper work roll. The roller cleaning system with the oil-bearing negative pressure degreasing device comprises: The upper cleaning roller includes a first scraper, a second scraper, an upper protective shell, and an upper air negative pressure generator. One end of the first scraper and the second scraper are mounted on the upper protective shell, and the other end of the first scraper and the second scraper are elastically attached to the upper support roller. The first scraper, the second scraper, and the upper protective shell form an upper cavity. The upper air negative pressure generator is mounted on the upper protective shell and is connected to the upper cavity. The lower cleaning roller includes a third scraper, a fourth scraper, a lower protective shell, and a lower air negative pressure generator. One end of the first scraper and the second scraper is mounted on the lower protective shell, and the other end of the third scraper and the fourth scraper is elastically attached to the lower support roller. The third scraper, the fourth scraper, and the lower protective shell form a lower cavity. The lower air negative pressure generator is mounted on the lower protective shell and is connected to the lower cavity.

[0007] As a further description of the above technical solution, the cleaning roller system also includes an upper oil discharge channel and a lower oil discharge channel. The upper oil discharge channel is installed on the side of the upper air negative pressure generator away from the upper protective shell, and an upper oil discharge port is provided at each end of the upper oil discharge channel. The lower oil discharge channel is installed on the side of the lower air negative pressure generator away from the lower protective shell, and a lower oil discharge port is provided at each end of the lower oil discharge channel.

[0008] As a further description of the above technical solution, the number of upper air negative pressure generators in the upper cleaning roller is set to multiple, and the multiple upper air negative pressure generators are spaced apart along the extension direction of the upper support roller; the number of lower air negative pressure generators in the lower cleaning roller is set to multiple, and the multiple lower air negative pressure generators are spaced apart along the extension direction of the lower support roller.

[0009] As a further description of the above technical solution, the multiple upper air negative pressure generators share the same upper oil discharge channel; the multiple lower air negative pressure generators share the same lower oil discharge channel.

[0010] As a further description of the above technical solution, the cleaning roller system also includes an upper air inlet pipe and a lower air inlet pipe. The upper air inlet pipe is connected in series with multiple upper air negative pressure generators and is used to supply air to all of the upper air negative pressure generators. The lower air inlet pipe is connected in series with multiple lower air negative pressure generators and is used to supply air to all of the lower air negative pressure generators.

[0011] As a further description of the above technical solution, the upper air intake pipe is connected through to the side of the upper air negative pressure generator away from the upper protective shell; the lower air intake pipe is connected through to the side of the lower air negative pressure generator away from the lower protective shell.

[0012] As a further description of the above technical solution, the air source pressure provided by the upper air intake pipe and the lower air intake pipe is 0.4 MPa.

[0013] As a further description of the above technical solution, the negative pressure of the upper cavity and the lower cavity is -0.15 MPa.

[0014] Based on the above technical solution, the beneficial effects of this utility model are as follows: This invention relates to a roller cleaning system with an oil-absorbing negative pressure removal device. The system utilizes a cavity formed by two scrapers and a protective shell, and an air negative pressure generator to draw oil into the cavity, thereby improving the operating efficiency of the scraper-type roller cleaning system. Specifically, in this invention, the two scrapers physically scrape oil from the surface of the support roller. The oil is then pre-collected within the cavity of the protective shell. Simultaneously, an air negative pressure generator connected to the cavity creates negative pressure within the cavity, causing some of the gaseous and liquid oil to be drawn out and collected. Compared to existing purely physical scraper-type roller cleaning systems without an intermediate cavity transition or negative pressure, this system can more effectively recover oil from the surface of the support roller, significantly increasing the recovery rate, and at a lower modification cost.

[0015] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, the drawings provided are for reference and illustration only and are not intended to limit this utility model. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a side view of a cleaning roller system of an oil-bearing negative pressure oil removal device provided in the embodiments of this specification; Figure 2-3 This is a front view of a cleaning roller system of an oil-containing negative pressure oil removal device provided in the embodiments of this specification; Figure 4-5 This is a top view of a cleaning roller system of an oil-bearing negative pressure oil removal device provided in the embodiments of this specification; In the picture: 100. Four-high rolling mill; 101. Upper work roll; 102. Lower work roll; 103. Upper support roll; 104. Lower support roll; 1. Upper cleaning roller; 11. First scraper; 12. Second scraper; 13. Upper protective shell; 14. Upper negative air pressure generator; 15. Upper oil discharge channel; 151. Upper oil discharge port; 16. Upper air inlet pipe; 17. Upper cavity; 2. Lower cleaning roller; 21. Third scraper; 22. Fourth scraper; 23. Lower protective shell; 24. Lower air negative pressure generator; 25. Lower oil drain channel; 251. Lower oil drain port; 26. Lower air inlet pipe; 27. Lower cavity. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0020] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.

[0021] Please see Figure 1-5 This embodiment describes a roller cleaning system with an oil-bearing negative pressure degreasing device, used for cleaning a four-high rolling mill 100. The four-high rolling mill 100 includes an upper work roll 101, a lower work roll 102, an upper support roll 103, and a lower support roll 104. The upper work roll 101 and the lower work roll 102 are attached and opposite to each other. The upper support roll 103 is attached to the side of the upper work roll 101 away from the lower work roll 102, and the lower support roll 104 is attached to the side of the lower work roll 102 away from the upper work roll 101. The roller cleaning system with the oil-bearing negative pressure degreasing device comprises: The upper cleaning roller 1 includes a first scraper 11, a second scraper 12, an upper protective shell 13, and an upper air negative pressure generator 14. One end of the first scraper 11 and the second scraper 12 is mounted on the upper protective shell 13, and the other end of the first scraper 11 and the second scraper 12 is elastically attached to the upper support roller 103. The first scraper 11, the second scraper 12, and the upper protective shell 13 enclose an upper cavity 17. The upper air negative pressure generator 14 is mounted on the upper protective shell 13 and is connected to the upper cavity 17. The lower cleaning roller 2 includes a third scraper 21, a fourth scraper 22, a lower protective shell 23, and a lower air negative pressure generator 24. One end of the third scraper 21 and the fourth scraper 22 is mounted on the lower protective shell 23, and the other end of the first scraper 11 and the second scraper 12 is elastically attached to the lower support roller 104. The third scraper 21, the fourth scraper 22, and the lower protective shell 23 enclose and form a lower cavity 27. The lower air negative pressure generator 24 is mounted on the lower protective shell 23 and is connected to the lower cavity 27.

[0022] Based on the above structure of this utility model, in actual use, the upper working roll 101 and the lower working roll 102 of the four-roll mill 100 rotate relative to each other under the drive of an external motor. During the rotation, the upper support roll 103 and the lower support roll 104 attached to the upper and lower ends are driven to rotate synchronously, so that the waste materials such as oil generated between the upper working roll 101 and the lower working roll 102 are introduced into the surface of the upper support roll 103 and the lower support roll 104. When the oil on the upper working roller 101 is driven and rotated to the position of the first scraper 11 of the upper cleaning roller 1, it is physically scraped into the position between the first scraper 11 and the second scraper 12, and blocked by the second scraper 12. Therefore, a large amount of oil is collected from the surface of the upper support roller 103 and accumulates in the upper cavity 17 formed by the first scraper 11, the second scraper 12 and the upper protective shell 13. At the same time, the upper air negative pressure generator 14, with its input end facing the upper cavity 17, is activated and generates negative pressure in the upper cavity 17, drawing the liquid, mist or gaseous oil in the upper cavity 17 out of the upper cavity 17. Therefore, the accumulation of oil in the upper cavity 17 is avoided, keeping the position between the first scraper 11 and the second scraper 12 relatively clean and improving the oil scraping efficiency of the scraper. The lower cleaning roller 2 is designed in the same way as the upper cleaning roller 1.

[0023] In the above solution, the oil in the cavity formed by the two scrapers and the protective shell can be drawn into the cavity by an air negative pressure generator, thereby improving the operating efficiency of the scraper-type roller cleaner. Specifically, in this invention, the two scrapers physically scrape the oil from the surface of the support roller, and then the oil is pre-collected in the cavity of the protective shell. Simultaneously, an air negative pressure generator connected to the cavity creates a negative pressure in the cavity, causing some of the gaseous and liquid oil to be drawn out of the cavity and collected for centralized recovery. Compared with the existing purely physical scraper-type roller cleaners that do not have an intermediate cavity transition and do not have a negative pressure state, this method can more effectively recover the oil on the surface of the support roller, greatly increasing the recovery rate, and the modification cost is low.

[0024] In another embodiment, the cleaning roller system further includes an upper oil discharge channel 15 and a lower oil discharge channel 25. The upper oil discharge channel 15 is installed on the side of the upper air negative pressure generator 14 away from the upper protective shell 13, and each end of the upper oil discharge channel 15 is provided with an upper oil discharge port. The lower oil discharge channel 25 is installed on the side of the lower air negative pressure generator 24 away from the lower protective shell 23, and each end of the lower oil discharge channel 25 is provided with a lower oil discharge port. Specifically, in use, taking the upper cleaning roller 1 as an example, the air negative pressure generator 14 is activated and generates negative pressure on the upper cavity 17, drawing liquid, mist, or gaseous oil in the upper cavity 17 into the upper oil discharge channel 15 outside the upper cavity 17. Then, after the oil accumulates to a preset level, the oil flows out from the two upper oil discharge ports 151 at both ends of the upper oil discharge channel 15 by its own weight. Operators can also periodically flush the upper oil discharge channel 15 with a high-pressure water gun. Similarly, in the lower cleaning roller 2, the oil is collected into the lower oil discharge channel 25 and flows out from the lower oil discharge ports 251 at both ends of the lower oil discharge channel 25.

[0025] Furthermore, the upper air negative pressure generator 14 in the upper cleaning roller 1 is configured to be multiple, and the multiple upper air negative pressure generators 14 are spaced apart along the extending direction of the upper support roller 103; the lower air negative pressure generator 24 in the lower cleaning roller 2 is configured to be multiple, and the multiple lower air negative pressure generators 24 are spaced apart along the extending direction of the lower support roller 104. Specifically, as shown... Figure 2As shown, taking the upper cleaning roller 1 as an example, the upper protective shell 13 is equipped with a corresponding number of upper air negative pressure generators 14 according to the actual length of the upper support roller 103. During operation, such as cleaning a four-roll mill 100 for processing 1920mm aluminum foil, eight upper air negative pressure generators 14 are arranged at intervals of nearly 2m in width to simultaneously and evenly absorb the oil stains accumulated in the upper cavity 17. This design fully considers the transverse structural characteristics of the four-roll mill 100. Furthermore, the multiple upper air negative pressure generators 14 share the same upper oil discharge channel 15; the multiple lower air negative pressure generators 24 share the same lower oil discharge channel 25. That is to say, the multiple upper air negative pressure generators 14 simultaneously and evenly input nearly equal amounts of oil into the upper oil discharge channel 15 to avoid blockage. The design in the lower cleaning roller 2 is similar.

[0026] Specifically, the cleaning roller system further includes an upper air inlet pipe 16 and a lower air inlet pipe 26. The upper air inlet pipe 16 is connected in series with multiple upper air negative pressure generators 14 and is used to supply air to all of the upper air negative pressure generators 14. The lower air inlet pipe 26 is connected in series with multiple lower air negative pressure generators 24 and is used to supply air to all of the lower air negative pressure generators 24. The upper air inlet pipe 16 passes through and connects to the side of the upper air negative pressure generator 14 opposite to the upper protective shell 13; the lower air inlet pipe 26 passes through and connects to the side of the lower air negative pressure generator 24 opposite to the lower protective shell 23. Taking the upper cleaning roller 1 as an example, the upper air inlet pipe 16 connects eight spaced upper air negative pressure generators 14 in series, and provides compressed air to each of them, enabling the eight upper air negative pressure generators 14 to achieve normal vacuum negative pressure operation. Located on the side opposite to the upper protective shell 13, their pipelines can be placed externally without considering the impact on the sealing of the upper cavity 17, achieving good convenience for later maintenance and easy installation. The design of the lower cleaning roller 2 is similar.

[0027] Furthermore, the air source pressure provided by the upper air inlet pipe 16 and the lower air inlet pipe 26 is 0.4 MPa, which can achieve a negative pressure of -0.15 MPa in the upper cavity and the lower cavity, which meets the requirements for cleaning use of the four-wheel rolling mill 100 for processing 1920mm aluminum foil.

[0028] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the scope of the patent application of the present utility model.

[0029] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0030] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.

Claims

1. A cleaning roller system with an oil-removing negative pressure device for cleaning a four-high rolling mill, wherein, The four-high rolling mill includes an upper work roll, a lower work roll, an upper support roll, and a lower support roll. The upper work roll and the lower work roll are attached to each other and arranged opposite to each other. The upper support roll is attached to the side of the upper work roll away from the lower work roll, and the lower support roll is attached to the side of the lower work roll away from the upper work roll. The feature is that the cleaning roll system with an oil-absorbing negative pressure degreasing device includes: The upper cleaning roller includes a first scraper, a second scraper, an upper protective shell, and an upper air negative pressure generator. One end of the first scraper and the second scraper are mounted on the upper protective shell, and the other end of the first scraper and the second scraper are elastically attached to the upper support roller. The first scraper, the second scraper, and the upper protective shell form an upper cavity. The upper air negative pressure generator is mounted on the upper protective shell and is connected to the upper cavity. The lower cleaning roller includes a third scraper, a fourth scraper, a lower protective shell, and a lower air negative pressure generator. One end of the third scraper and the fourth scraper are mounted on the lower protective shell, and the other ends of the first scraper and the second scraper are elastically attached to the lower support roller. The third scraper, the fourth scraper, and the lower protective shell form a lower cavity. The lower air negative pressure generator is mounted on the lower protective shell and is connected to the lower cavity.

2. The cleaning roller system of the negative pressure oil removal device with oil as described in claim 1, characterized in that: The cleaning roller system also includes an upper oil discharge channel and a lower oil discharge channel. The upper oil discharge channel is installed on the side of the upper air negative pressure generator away from the upper protective shell, and an upper oil discharge port is provided at each end of the upper oil discharge channel. The lower oil discharge channel is installed on the side of the lower air negative pressure generator away from the lower protective shell, and a lower oil discharge port is provided at each end of the lower oil discharge channel.

3. The cleaning roller system of the negative pressure oil removal device with oil as described in claim 2, characterized in that: The upper cleaning roller has multiple upper air negative pressure generators, which are spaced apart along the extension direction of the upper support roller; the lower cleaning roller has multiple lower air negative pressure generators, which are spaced apart along the extension direction of the lower support roller.

4. The cleaning roller system of the negative pressure oil removal device with oil as described in claim 3, characterized in that: Multiple upper air negative pressure generators share the same upper oil discharge channel; multiple lower air negative pressure generators share the same lower oil discharge channel.

5. The cleaning roller system of the negative pressure oil removal device with oil as described in claim 3, characterized in that: The cleaning roller system also includes an upper air inlet pipe and a lower air inlet pipe. The upper air inlet pipe is connected in series with multiple upper air negative pressure generators and is used to supply air to all of the upper air negative pressure generators. The lower air inlet pipe is connected in series with multiple lower air negative pressure generators and is used to supply air to all of the lower air negative pressure generators.

6. The cleaning roller system of the negative pressure oil removal device with oil as described in claim 5, characterized in that: The upper air intake pipe is connected to the side of the upper air negative pressure generator that is away from the upper protective shell; the lower air intake pipe is connected to the side of the lower air negative pressure generator that is away from the lower protective shell.

7. The cleaning roller system of the negative pressure oil removal device with oil as described in claim 5, characterized in that: The air pressure provided by the upper air intake pipe and the lower air intake pipe is 0.4 MPa.

8. The cleaning roller system of the negative pressure oil removal device with oil as described in claim 7, characterized in that: The negative pressure in the upper cavity and the lower cavity is -0.15 MPa.

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