Rolling oil injection mechanism capable of reducing aluminum powder of inlet strip

Abstract

The utility model relates to a rolling oil injection mechanism for reducing aluminum powder of an inlet strip, which comprises a first tension roller, a second tension roller and a third tension roller which are sequentially arranged at the inlet end of a cold rolling mill along the rolling direction, and the second tension roller is positioned on the upper side between the first tension roller and the third tension roller. An upper spraying pipe is arranged on the portion, located above the input side of the second tensioning roller, of the rack of the cold rolling mill, a plurality of upper nozzles are installed on the upper spraying pipe at intervals in the axial direction of the upper spraying pipe, and the upper nozzles incline downwards and face the included angle between the second tensioning roller and the strip. The mechanism is beneficial to continuous cleaning of the coiled material at the inlet of the cold rolling mill, and aggregation of aluminum powder is reduced.

Description

Technical Field

[0001] The utility model relates to a rolling oil injection mechanism for reducing aluminum powder in an inlet strip. Background Art

[0002] Aluminum coils need to be rolled during the production process. However, due to the presence of a large amount of aluminum powder on the surface of the aluminum coil, the aluminum powder is easily gathered at the roller gap during the rolling process and pressed onto the surface of the strip, causing defects of aluminum powder pressing on the surface of the strip, forming aluminum powder prints, and affecting the quality of the aluminum coil. Utility Model Content

[0003] The utility model aims to provide a rolling oil injection mechanism for reducing aluminum powder in an inlet strip, which helps to continuously clean the strip at the inlet of a cold rolling mill and reduce the aggregation of aluminum powder.

[0004] The technical solution of the utility model is: a rolling oil injection mechanism for reducing aluminum powder in an inlet strip, comprising a first tensioning roller, a second tensioning roller, and a third tensioning roller which are sequentially arranged at the inlet end of a cold rolling mill along a rolling direction, wherein the second tensioning roller is located on the upper side between the first tensioning roller and the third tensioning roller, an upper spray pipe is arranged on the frame of the cold rolling mill above the input side of the second tensioning roller, a plurality of upper nozzles are installed on the upper spray pipe at intervals along its axial direction, and the upper nozzles are inclined downward and toward the angle between the second tensioning roller and the strip.

[0005] Furthermore, the angle between the spraying direction of the upper nozzle and the horizontal plane is 55°~65°.

[0006] Furthermore, lower spray pipes are installed on the frame of the cold rolling mill at the lower sides of the first tensioning roller and the third tensioning roller, and a plurality of lower nozzles with upward spraying directions are installed on the lower spray pipes at intervals along the axial direction.

[0007] Furthermore, the lower spray pipe located at the lower side of the first tensioning roller is arranged below and close to the output side of the first tensioning roller, and the lower nozzle on the lower spray pipe is vertically upward and toward the first tensioning roller.

[0008] Furthermore, the lower spray pipe located at the lower side of the third tensioning roller is arranged below and close to the input side of the third tensioning roller, and the lower nozzle on the lower spray pipe is vertically upward and toward the third tensioning roller.

[0009] Furthermore, both ends of the upper spray pipe and the lower spray pipe are fixedly connected to the frame of the cold rolling mill via a fixing seat.

[0010] Furthermore, one end of the upper spray pipe and the lower spray pipe are both connected to the oil supply pipe, and an electric control valve is provided on the oil supply pipe; one end of the upper spray pipe and the lower spray pipe are both provided with an angle seat valve.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The mechanism has a simple and compact structure and low cost. By adding nozzles to the frame at the entrance of the cold rolling mill, the surface of the incoming strip at the entrance of the cold rolling mill is continuously cleaned, which helps to reduce the aggregation of aluminum powder to avoid the aggregation of aluminum powder in the roller gap to form aluminum powder prints. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the installation of the upper spray pipe of the utility model;

[0015] In the figure: 1-first tensioning roller 2-second tensioning roller 3-third tensioning roller 4-upper spray pipe 5-upper nozzle 6-angle between the second tensioning roller and the strip 7-lower spray pipe 8-fixed seat 9-frame 10-oil supply pipe 11-angle seat valve 12-strip. DETAILED DESCRIPTION

[0016] In order to make the above features and advantages of the present invention more understandable, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.

[0017] refer to Figure 1 and Figure 2

[0018] A rolling oil injection mechanism for reducing aluminum powder in an inlet strip comprises a first tensioning roller 1, a second tensioning roller 2, and a third tensioning roller 3 which are sequentially arranged at the inlet end of a cold rolling mill along the rolling direction, wherein the second tensioning roller is located on the upper side between the first tensioning roller and the third tensioning roller, so that the strip is sequentially fed into the cold rolling mill through the first tensioning roller, the second tensioning roller, and the third tensioning roller, and an upper spray pipe 4 is arranged on a frame 9 of the cold rolling mill above the input side of the second tensioning roller, wherein a plurality of upper nozzles 5 are installed at intervals along the axial direction of the upper spray pipe, and the upper nozzles are inclined downward and toward the angle 6 between the second tensioning roller and the strip, thereby continuously cleaning the surface of the incoming strip at the inlet of the cold rolling mill.

[0019] In this embodiment, the angle between the spraying direction of the upper nozzle and the horizontal plane is 55° to 65°, and specifically, an angle of 60° can be adopted.

[0020] In this embodiment, 20 upper nozzles are installed at intervals on the upper spray pipe, the interval between adjacent upper nozzles is 100 mm, and the rolling oil pressure is 3 kg.

[0021] In this embodiment, in order to clean the lower side of the strip, a lower spray pipe 7 is installed on the frame of the cold rolling mill at the lower sides of the first tensioning roller and the third tensioning roller, and a plurality of lower nozzles with upward spraying directions are installed on the lower spray pipe along the axial intervals, so as to spray the first tensioning roller and the third tensioning roller.

[0022] In this embodiment, 20 lower nozzles are installed at intervals on the lower spray pipe, the interval between adjacent lower nozzles is 100 mm, and the rolling oil pressure is 3 kg.

[0023] In this embodiment, the lower spray pipe located at the lower side of the first tensioning roller is arranged below and close to the output side of the first tensioning roller, and the lower nozzle on the lower spray pipe is vertically upward and toward the first tensioning roller.

[0024] In this embodiment, the lower spray pipe located at the lower side of the third tensioning roller is arranged below and close to the input side of the third tensioning roller, and the lower nozzle on the lower spray pipe is vertically upward and toward the third tensioning roller.

[0025] In this embodiment, in order to facilitate the installation of the upper spray pipe and the lower spray pipe, both ends of the upper spray pipe and the lower spray pipe are fixedly connected to the frame of the cold rolling mill through a fixing seat 8.

[0026] In this embodiment, in order to realize electrical control of the upper spray pipe and the lower spray pipe, one end of the upper spray pipe and the lower spray pipe are connected to the oil supply pipe 10, and the oil supply pipe is provided with an electric control valve. An angle seat valve 11 is provided at one end of the upper spray pipe and the lower spray pipe, which helps to manually control the upper spray pipe and the lower spray pipe respectively.

[0027] Principle: Through the continuous spraying of oil during the rolling process, an oil collection area with a width of more than 100mm is formed at the first tensioning roller, the second tensioning roller, and the third tensioning roller, which continuously cleans the inlet strip and reduces the aggregation of aluminum powder.

[0028] If the words "first", "second" and so on are used to limit the components in the above-mentioned utility model, those skilled in the art should know that the use of "first" and "second" is only for the convenience of description to distinguish the components. Unless otherwise stated, the above words have no special meaning.

[0029] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the fixed connection to each other can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except where it is obviously impossible to use an one-piece molding process).

[0030] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.

[0031] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated molding process.

[0032] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A rolling oil injection mechanism for reducing aluminum powder in an inlet strip, comprising a first tensioning roller, a second tensioning roller, and a third tensioning roller arranged in sequence at the inlet end of a cold rolling mill along a rolling direction, wherein the second tensioning roller is located on the upper side between the first tensioning roller and the third tensioning roller, characterized in that: An upper spray pipe is arranged on the frame of the cold rolling mill above the input side of the second tensioning roller, and a plurality of upper nozzles are installed along the axial direction of the upper spray pipe at intervals. The upper nozzles are inclined downward and toward the angle between the second tensioning roller and the strip.

2. A rolling oil injection mechanism for reducing aluminum powder in inlet strip according to claim 1, characterized in that: The angle between the spray direction of the upper nozzle and the horizontal plane is 55°~65°.

3. A rolling oil injection mechanism for reducing aluminum powder in inlet strip according to claim 1 or 2, characterized in that: The frame of the cold rolling mill is provided with lower spray pipes at the lower sides of the first tensioning roller and the third tensioning roller, and the lower spray pipes are provided with a plurality of lower nozzles with upward spraying directions at intervals along the axial direction.

4. A rolling oil injection mechanism for reducing aluminum powder in inlet strip according to claim 3, characterized in that: The lower spray pipe located at the lower side of the first tensioning roller is arranged below and close to the output side of the first tensioning roller, and the lower nozzle on the lower spray pipe is vertically upward and toward the first tensioning roller.

5. A rolling oil injection mechanism for reducing aluminum powder in inlet strip according to claim 3, characterized in that: The lower spray pipe located at the lower side of the third tensioning roller is arranged below the input side of the third tensioning roller, and the lower nozzle on the lower spray pipe is vertically upward and toward the third tensioning roller.

6. A rolling oil injection mechanism for reducing aluminum powder in inlet strip according to claim 3, characterized in that: Both ends of the upper spray pipe and the lower spray pipe are fixedly connected to the frame of the cold rolling mill via a fixing seat.

7. A rolling oil injection mechanism for reducing aluminum powder in inlet strip according to claim 3, characterized in that: One end of the upper spray pipe and the lower spray pipe is connected to the oil supply pipe, and the oil supply pipe is provided with an electric control valve; one end of the upper spray pipe and the lower spray pipe is provided with an angle seat valve.

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