Liquid leakage prevention mechanism of horizontal roller coater and horizontal roller coater

Abstract

The utility model discloses a horizontal roller coater and a liquid leakage prevention mechanism thereof, the liquid leakage prevention mechanism comprises a roller coater body with a first coating head assembly, a second coating head assembly and a turning roller assembly, and also comprises a first liquid receiving disc and a second liquid receiving disc, the turning roller assembly comprises an upper turning roller and a lower turning roller, the strip steel is sequentially wound around the lower steering roller, the first coating head assembly, the upper steering roller and the second coating head assembly from head to tail, the first coating head assembly is close to the upper steering roller, and the first liquid receiving disc is arranged below a steel passing wire between the upper steering roller and the lower steering roller. The first liquid receiving disc is arranged below the first coating head assembly to receive dripping liquid formed by dripping from the strip steel when the first coating head assembly coats the strip steel with the coating liquid, and the second liquid receiving disc is arranged below the first coating head assembly to receive the coating liquid splashed out when the first coating head assembly coats the strip steel, so that the splashed coating liquid and the dripping liquid can be received; and therefore, pollution to the strip steel and the surrounding environment in production is avoided, and meanwhile, the working time required for removing pollution is reduced, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of horizontal roller coaters, in particular to a liquid leakage prevention mechanism of a horizontal roller coater and the horizontal roller coater. Background Art

[0002] In the production process of cold-rolled galvanized, color-coated, silicon steel and other strip steel products, it is usually necessary to use a roller coater to apply a chemical coating or film on the strip surface. Depending on the type of coating, it may have a rust-proof effect, such as preventing white rust on the surface of galvanized strip steel; or improve the processing performance of the next process, such as facilitating stamping and surface coating; or be used to improve anti-fingerprint properties; or apply a certain thickness of insulating coating to make the silicon steel product insulating and rust-proof.

[0003] At present, horizontal roller coaters are often used to apply various coating liquids on the surface of strip steel, and then form coatings with different properties after drying. Therefore, many types of coating liquids are required, such as environmentally friendly coating liquids, chromium-containing coating liquids, etc., and during the coating process, the coating liquid is easy to splash out from the coating head, or the coating liquid that has been applied to the strip steel drips from it. Such splashed coating liquid or dripping liquid will contaminate the strip steel, surrounding machines, equipment and environment in production. In particular, the chromium-containing coating liquid is toxic to a certain extent and will cause certain damage to the health of the operators. The operators also need to spend a lot of man-hours to deal with various problems caused by coating liquid pollution, such as the need to wipe the machine several times, clean the work floor or clean up the contaminated strip steel. Summary of the Invention

[0004] To this end, in order to solve the above-mentioned problems, the utility model provides a horizontal roller coater with a liquid leakage prevention mechanism and a horizontal roller coater, which can effectively and reliably receive splashed coating liquid and dripping liquid from the strip, thereby effectively avoiding pollution of the strip in production, surrounding machines, equipment and the environment, and at the same time reducing the working hours of operators in dealing with coating liquid pollution problems, thereby improving work efficiency.

[0005] To achieve the above purpose, the technical solutions provided by the present invention are as follows:

[0006] The utility model provides a liquid leakage prevention mechanism of a horizontal roller coating machine, comprising a roller coating machine body, the roller coating machine body comprising a first coating head assembly, a second coating head assembly and a steering roller assembly arranged between the first coating head assembly and the second coating head assembly, the first coating head assembly being used to apply coating liquid on one surface of a steel strip, the second coating head assembly being used to apply coating liquid on another surface of the steel strip, and further comprising a liquid receiving assembly for preventing liquid leakage; the steering roller assembly comprising an upper steering roller and a lower steering roller arranged in an upper and lower manner, the steel strip being wound around the lower steering roller, the first coating head assembly, the upper steering roller and the second coating head assembly in sequence from beginning to end, and the first coating head assembly being close to the upper steering roller; the liquid receiving assembly comprising a first liquid receiving pan and a second liquid receiving pan, the first liquid receiving pan being arranged below the steel passing line between the upper steering roller and the lower steering roller to receive liquid dripping from the steel strip when the first coating head assembly applies coating liquid on the steel strip, and the second liquid receiving pan being arranged below the first coating head assembly to receive coating liquid splashed out during coating by the first coating head assembly.

[0007] Furthermore, a third liquid receiving tray is provided between the first liquid receiving tray and the second liquid receiving tray, and the first liquid receiving tray and the third liquid receiving tray, as well as the second liquid receiving tray and the third liquid receiving tray, are connected by a pipe to form a guide channel for waste liquid transportation.

[0008] Furthermore, the second liquid receiving tray has a first liquid receiving trough, a second liquid receiving trough and a guide plate located between the first liquid receiving trough and the second liquid receiving trough, the guide plate is used to receive the coating liquid splashed when the first coating head assembly is coating, and the coating liquid splashed when the first coating head assembly is coating flows to the first liquid receiving trough and the second liquid receiving trough through the guide plate; the first liquid receiving trough and the second liquid receiving trough are connected by a connecting pipe; the height of the first liquid receiving trough is greater than the height of the second liquid receiving trough.

[0009] Furthermore, the height of the third liquid receiving tray is set between the heights of the first liquid receiving tray and the second liquid receiving tray.

[0010] Furthermore, one end of the third liquid receiving pan extends to the mounting bracket of the lower steering roller, and the other end extends above the second liquid receiving pan, and the third liquid receiving pan and the third liquid receiving pan are spatially overlapped with each other.

[0011] Furthermore, the roller coater body includes a strip steel feeding port, and the second liquid receiving pan is located above the strip steel between the strip steel feeding port and the lower turning roller.

[0012] Furthermore, the liquid receiving assembly includes a fourth liquid receiving tray, which is arranged below the second coating head assembly to receive the coating liquid splashed out during coating by the second coating head assembly.

[0013] Furthermore, the first coating head assembly and the second coating head assembly are arranged on both sides of the steering roller assembly and are arranged in a transverse direction.

[0014] Furthermore, the liquid contact component is provided with a waste discharge pipeline for discharging waste liquid.

[0015] The utility model provides a horizontal roller coater, which at least comprises the liquid leakage prevention mechanism of the roller coater.

[0016] The technical solution provided by the utility model has the following beneficial effects:

[0017] By arranging a liquid receiving component for preventing liquid leakage on the roller coater body, it can receive the dripping liquid formed from the strip when the first coating head component coats the coating liquid on the strip, and receive the coating liquid splashed when the first coating head component coats, thereby achieving effective collection of waste liquids such as dripping liquid and splashed coating liquid. In this way, the liquid receiving component can effectively and reliably receive the splashed coating liquid and the waste liquid such as dripping liquid from the strip, thereby effectively avoiding pollution of the strip in production, surrounding machines, equipment and the environment, and at the same time reducing the working hours of operators in dealing with the coating liquid pollution problem, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 1 is a schematic diagram of the liquid leakage prevention mechanism of the horizontal roller coater in Example 1;

[0019] Figure 2 FIG. 1 is a schematic diagram of the second liquid receiving tray in Example 1. DETAILED DESCRIPTION

[0020] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will understand other possible implementations and the advantages of this invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0021] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0022] Example 1

[0023] Reference Figure 1 and Figure 2As shown, embodiment 1 provides a liquid leakage prevention mechanism of a horizontal roller coater (hereinafter referred to as the liquid leakage prevention mechanism), the liquid leakage prevention mechanism includes a roller coater body, the roller coater body includes a first coating head assembly 1, a second coating head assembly 2 and a steering roller assembly arranged between the first coating head assembly 1 and the second coating head assembly 2, the first coating head assembly 1 is used to apply coating liquid on one surface of the steel strip, and the second coating head assembly 2 is used to apply coating liquid on the other surface of the steel strip.

[0024] The anti-leakage mechanism also includes a liquid receiving assembly for preventing liquid leakage. The steering roller assembly includes an upper steering roller 6 and a lower steering roller 7 arranged upper and lower. The strip is wound around the lower steering roller 7, the first coating head assembly 1, the upper steering roller 6 and the second coating head assembly 2 from beginning to end, and the first coating head assembly 1 is close to the upper steering roller 6.

[0025] The liquid receiving assembly includes a first liquid receiving pan 3 and a second liquid receiving pan 4. The first liquid receiving pan 3 is arranged below the steel wire 9 between the upper steering roller 6 and the lower steering roller 7 to receive the dripping liquid formed by the first coating head assembly 1 when the coating liquid is applied to the strip, and the second liquid receiving pan 4 is arranged below the first coating head assembly 1 to receive the coating liquid splashed out when the first coating head assembly 1 is coating.

[0026] In this embodiment, the first coating head assembly 1 and the second coating head assembly 2 are arranged on the left and right sides of the steering roller assembly, and are arranged horizontally on the left and right to avoid the coating liquid splashed from the first coating head assembly 1 or the second coating head assembly 2 from causing coating liquid contamination to the other group of coating head assemblies, and can also avoid coating liquid contamination to the strip steel in production.

[0027] The roller coater body includes a strip inlet, and the second liquid receiving tray 4 is located above the strip between the strip inlet and the lower turning roller 7 to further ensure that the coating liquid splashed out during coating by the first coating head assembly 1 will not fall onto the surface of the strip, thereby avoiding the strip from forming spots or other defects due to contamination by waste liquids such as dripping and splashing coating liquid.

[0028] During coating, the strip enters from the strip feed port located at the lower right corner of the horizontal roller coater, and then is turned by the lower steering roller 7, and then extends upward to the first coating head assembly 1, and then the upper surface of the strip is coated with the coating liquid through the first coating head assembly 1, and then is turned by the upper steering roller 6, and then extends to the left to the second coating head assembly 2, and finally the lower surface of the strip is coated with the coating liquid through the second coating head assembly 2, and the steel line 9 between the upper steering roller 6 and the lower steering roller 7 forms a stable passing line to ensure that the coating liquid dripping from the strip falls accurately into the first liquid receiving tray 3.

[0029] By arranging a liquid receiving component for preventing liquid leakage on the roller coater body, it can receive the dripping liquid formed by dripping from the strip when the first coating head component 1 coats the coating liquid on the strip, and receive the coating liquid splashed when the first coating head component 1 is coating, thereby achieving effective collection of waste liquids such as dripping liquid and splashed coating liquid. In this way, the liquid receiving component can effectively and reliably receive the splashed coating liquid and the waste liquid such as dripping liquid from the strip, thereby effectively avoiding pollution of the strip in production, surrounding machines, equipment and the environment, and at the same time reducing the working hours of operators in dealing with the coating liquid pollution problem, thereby improving work efficiency.

[0030] In another preferred embodiment, a third liquid receiving tray 5 is provided between the first liquid receiving tray 3 and the second liquid receiving tray 4, and the first liquid receiving tray 3 and the third liquid receiving tray 5 as well as the second liquid receiving tray 4 and the third liquid receiving tray 5 are connected by a pipe to form a diversion channel for waste liquid transportation.

[0031] More specifically, Figure 2 As shown, the second liquid receiving tray 4 has a first liquid receiving trough 41, a second liquid receiving trough 42 and a guide plate 43 located between the first liquid receiving trough 41 and the second liquid receiving trough 42. The guide plate 43 is used to receive the coating liquid splashed during coating by the first coating head assembly 1, and the splashed coating liquid flows to the first liquid receiving trough 41 and the second liquid receiving trough 42 through the guide plate 43. The first liquid receiving trough 41 and the second liquid receiving trough 42 are connected by a connecting pipe 44, and the bottom wall of the second liquid receiving trough 42 of the liquid receiving assembly is provided with a waste discharge pipe 45 for discharging waste liquid, so as to realize the transportation of waste liquid to an external waste liquid treatment station.

[0032] In this embodiment, the height of the first liquid receiving tank 41 is greater than that of the second liquid receiving tank 42 to form a height difference, which facilitates the natural flow of waste liquid from the first liquid receiving tank 41 to the second liquid receiving tank 42 through the connecting pipe 44 for easy discharge.

[0033] The height of the third liquid receiving pan 5 is set between the heights of the first liquid receiving pan 3 and the second liquid receiving pan 4, and one end of the third liquid receiving pan 5 extends to the mounting frame of the lower steering roller 7, and the other end extends to above the second liquid receiving pan 4 and forms a spatial overlap with each other, that is, the left side of the third liquid receiving pan 5 exceeds the side wall of the mounting frame of the lower steering roller 7 until it approaches the roller surface of the lower steering roller 7, and the right side of the third liquid receiving pan 5 and the left side of the second liquid receiving pan 4 have a spatial overlap, so that the moving space of the first coating head assembly 1 during coating can be avoided, thereby avoiding interference between the mechanisms, and further catching dripping liquid.

[0034] When the horizontal roller coater is coating, after the first coating head assembly 1 coats the coating liquid on the upper surface of the strip, part of the coating liquid drips downward from the surface of the strip to form droplets. At the same time, the coating liquid will also splash out when the first coating head assembly 1 is coating. At this time, the droplets will fall into the first liquid receiving tray 3 and the third liquid receiving tray 5, and the coating liquid splashed out when the first coating head assembly 1 is coating will also fall on the first liquid receiving trough 41, the second liquid receiving trough 42 and the guide plate 43 of the second liquid receiving tray 4.

[0035] In addition, the droplets falling into the first liquid receiving tray 3 flow downward along the connecting pipe to the third liquid receiving tray 5, and the droplets falling into the third liquid receiving tray 5 at the same time will also flow into the first liquid receiving tank 41 of the second liquid receiving tray 4, and the guide plate 43 receives the coating liquid splashed out during coating by the first coating head assembly 1, and under the guiding action of the guide plate 43, flows into the first liquid receiving tank 41 and the second liquid receiving tank 42 respectively. At this time, the waste liquid collected in the first liquid receiving tank 41 flows to the second liquid receiving tank 42 through the connecting pipe 44, and then all the waste liquid is transported to the external waste liquid treatment station through the waste discharge pipe 45.

[0036] In another preferred embodiment, the liquid receiving assembly includes a fourth liquid receiving pan 8, which is arranged below the second coating head assembly 2 to receive the coating liquid splashed when the second coating head assembly 2 is coating. Moreover, since the extension direction of the steel strip when coated by the second coating head assembly 2 is in a winding direction toward the upper left, only a fourth liquid receiving pan 8 with a waste discharge pipe 45 needs to be arranged below the second coating head assembly 2 to avoid the steel strip being contaminated by the coating liquid splashed when coated by the second coating head assembly 2, and to effectively avoid pollution to surrounding machines, equipment and the environment, and the structure arranged in this way is relatively simple.

[0037] Example 2

[0038] Example 2 provides a horizontal roller coater, which at least includes the anti-leakage mechanism of the roller coater of Example 1, so that it can effectively and reliably receive the splashed coating liquid and the dripping liquid from the strip steel, thereby effectively avoiding the pollution of the strip steel in production, surrounding machines, equipment and the environment, and at the same time reducing the working hours of operators in dealing with the coating liquid pollution problem, thereby improving work efficiency.

[0039] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these changes are within the scope of protection of the present invention.

Claims

1. A liquid leakage prevention mechanism for a horizontal roller coater, comprising a roller coater body, the roller coater body comprising a first coating head assembly, a second coating head assembly, and a steering roller assembly disposed between the first coating head assembly and the second coating head assembly, wherein the first coating head assembly is used to apply a coating liquid to one surface of a steel strip, and the second coating head assembly is used to apply a coating liquid to the other surface of the steel strip, characterized in that: Also included are liquid contact components for preventing liquid leakage; The steering roller assembly includes an upper steering roller and a lower steering roller arranged in an upper and lower manner, and the strip is wound around the lower steering roller, the first coating head assembly, the upper steering roller and the second coating head assembly in sequence from the beginning to the end, and the first coating head assembly is close to the upper steering roller; The liquid receiving assembly includes a first liquid receiving pan and a second liquid receiving pan. The first liquid receiving pan is arranged below the steel line between the upper turning roller and the lower turning roller to receive the dripping liquid formed by the first coating head assembly coating the strip steel with coating liquid, and the second liquid receiving pan is arranged below the first coating head assembly to receive the coating liquid splashed out when the first coating head assembly is coating.

2. The anti-leakage mechanism of the horizontal roller coater according to claim 1, characterized in that: A third liquid receiving pan is provided between the first liquid receiving pan and the second liquid receiving pan. The first liquid receiving pan and the third liquid receiving pan, as well as the second liquid receiving pan and the third liquid receiving pan are connected by a pipe to form a guide channel for waste liquid transportation.

3. The anti-leakage mechanism of the horizontal roller coater according to claim 2, characterized in that: The second liquid receiving tray has a first liquid receiving trough, a second liquid receiving trough and a guide plate located between the first liquid receiving trough and the second liquid receiving trough, the guide plate is used to receive the coating liquid splashed when the first coating head assembly is coating, and the coating liquid splashed when the first coating head assembly is coating flows to the first liquid receiving trough and the second liquid receiving trough through the guide plate; the first liquid receiving trough and the second liquid receiving trough are connected by a connecting pipe; the height of the first liquid receiving trough is greater than the height of the second liquid receiving trough.

4. The liquid leakage prevention mechanism of the horizontal roller coater according to claim 2 or 3, characterized in that: The height of the third liquid receiving pan is set between the heights of the first liquid receiving pan and the second liquid receiving pan.

5. The liquid leakage prevention mechanism of the horizontal roller coater according to claim 2 or 3, characterized in that: One end of the third liquid receiving pan extends to the mounting bracket of the lower steering roller, and the other end extends above the second liquid receiving pan and they are spatially overlapped with each other.

6. The liquid leakage prevention mechanism of the horizontal roller coater according to any one of claims 1 to 3, characterized in that: The roller coater body includes a strip steel feeding port, and the second liquid receiving pan is located above the strip steel between the strip steel feeding port and the lower turning roller.

7. The liquid leakage prevention mechanism of the horizontal roller coater according to any one of claims 1 to 3, characterized in that: The liquid receiving assembly includes a fourth liquid receiving pan, which is arranged below the second coating head assembly to receive the coating liquid splashed out during coating by the second coating head assembly.

8. The liquid leakage prevention mechanism of a horizontal roller coater according to any one of claims 1 to 3, characterized in that: The first coating head assembly and the second coating head assembly are arranged on both sides of the steering roller assembly and are arranged in a transverse direction.

9. The liquid leakage prevention mechanism of a horizontal roller coater according to any one of claims 1 to 3, characterized in that: The liquid contact component is provided with a waste discharge pipeline for discharging waste liquid.

10. A horizontal roller coater, characterized in that: The invention comprises at least the anti-leakage mechanism of the roller coater according to any one of claims 1 to 9.

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