Air cushion guide plate for assisting automatic threading of aluminum plate cold-rolling mill

Abstract

The utility model belongs to the field of non-ferrous metal processing equipment, and particularly discloses an air cushion guide plate for assisting an aluminum plate cold-rolling mill in automatic threading, a plurality of guide rails protruding out of the upper surface of a guide plate body are respectively arranged on the guide plate body at intervals, an air blowing assembly is respectively arranged between every two adjacent guide rails, and each air blowing assembly at least comprises an air blowing opening. The air inlet end of the air blowing opening is connected with a high-pressure air source through a pipeline, the air blowing opening blows upward and forward airflow to support the strip and counteract the influence caused by the weight of the strip, the problem that the thin material head droops is effectively solved, meanwhile, certain forward airflow power is provided, and the material head is prevented from falling. The guide plate body, the air blowing openings and the copper alloy guide rails are matched to reduce the contact area of the guide plate body and the surface of an aluminum plate, reduce the influence of oil stains on the surface of a strip, increase advancing power, effectively avoid the jamming phenomenon of the aluminum plate cold-rolling mill in the process that the strip penetrates through the rolling mill, ensure that the cold-rolling mill automatically completes strip penetrating work, and improve the production efficiency. Manual auxiliary time is reduced, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of nonferrous metal processing equipment, in particular to an air cushion guide plate for assisting an aluminum plate cold rolling mill in automatically threading a belt. Background Art

[0002] Traditional cold rolling mills mostly use guide plates to realize the lower uncoiling of steel coils, and introduce the strip head of the steel coil from the bottom to the adjacent pinch rollers. In the process of threading the aluminum plate and strip cold rolling mill, since the aluminum plate is relatively weak in rigidity and cannot pass through the mill roll gap by itself, it is necessary to install a guide plate device to support the aluminum plate to facilitate its entry into the mill roll gap. However, during the production process, the guide plate is very easy to adhere to rolling oil and other foreign matter, which increases the friction between the guide plate surface and the aluminum plate and strip, and the aluminum plate and strip head is prone to jamming. When the aluminum plate and strip head is jammed, it is necessary to manually pry the head with a metal bar for guidance. Once the manual guidance is not timely, it is very easy to cause material accumulation at the inlet side of the mill, and the subsequent processing process is more complicated. In addition, when the aluminum plate and strip cold rolling mill produces thin materials, the head jam phenomenon is frequent, and the automatic threading of the cold rolling mill cannot be realized, resulting in a long rolling auxiliary time, reducing the effective working time of the mill. Usually, the automatic threading time is less than 3 minutes, while the auxiliary time is about 6-8 minutes. At the same time, there are safety hazards in the manual guidance process. Summary of the invention

[0003] In order to solve the problems in the background technology, the utility model discloses an air cushion guide plate for assisting the automatic threading of an aluminum plate cold rolling mill, including a plurality of guide rails and a blowing assembly, which reduces the influence of oil stains on the surface of the strip, increases the forward momentum, and effectively avoids the jamming phenomenon that occurs when the strip passes through the rolling mill.

[0004] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0005] An air cushion guide plate for assisting the automatic threading of an aluminum plate cold rolling mill, wherein at least one guide plate unit is arranged between the inlet guide roller and the working roller of the cold rolling mill, the guide plate unit comprises a plate-shaped guide plate body, the guide plate body is connected to the frame via connecting plates, a plurality of guide rails protruding from the upper surface of the guide plate body are arranged at intervals on the guide plate body, the guide rails extend along the feeding direction of the cold rolling mill, and blowing assemblies are arranged between adjacent guide rails, the blowing assemblies comprise at least one blowing port, and the air inlet end of the blowing port is connected to a high-pressure air source via a pipeline.

[0006] Furthermore, the air cushion guide plate that assists the automatic threading of the aluminum plate cold rolling mill has several guide plate units spaced apart along the feeding direction of the cold rolling mill between the inlet guide roller and the working roller of the cold rolling mill, and transmission parts for assisting the conveying of materials are arranged between the guide plate bodies of adjacent guide plate units.

[0007] Furthermore, the air cushion guide plate of the auxiliary aluminum plate cold rolling mill for automatic belt threading has an air blowing port that is inclined toward the direction close to the entrance of the cold rolling unit.

[0008] Furthermore, the height of the air cushion guide plate for automatic belt threading of the auxiliary aluminum plate cold rolling mill is lower than the height of the guide rail and higher than the height of the upper surface of the guide plate body.

[0009] Furthermore, the air cushion guide plate that assists the automatic belt threading of the aluminum plate cold rolling mill has a transmission member that is a conveyor belt or a guide wheel.

[0010] Furthermore, the air cushion guide plate of the auxiliary aluminum plate cold rolling mill for automatic belt threading, the guide plate body is made of metal, and the guide rail is made of copper alloy.

[0011] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0012] The utility model discloses an air cushion guide plate for assisting the automatic strip threading of an aluminum plate cold rolling mill. At least one guide plate unit is arranged between the deflection roller and the working roller at the entrance of the cold rolling mill. The guide plate unit has a guide plate body. A plurality of guide rails protruding from the upper surface of the guide plate body are arranged on the guide plate body at intervals. Blowing components are arranged between adjacent guide rails. The blowing components include at least one blowing port. The air inlet end of the blowing port is connected to a high-pressure air source through a pipeline. The guide rail can reduce the contact surface between the rolling oil or foreign matter on the guide plate body and the strip, reduce the friction, and blow The air outlet blows out an upward and forward air flow to support the strip and offset the influence of the strip weight, thereby effectively solving the problem of the thin material head sagging, while providing a certain forward airflow power. The cooperation of the metal guide plate body, the air outlet and the copper alloy guide rail can reduce the contact area between the guide plate body and the surface of the aluminum plate, reduce the influence of oil pollution on the surface of the strip, and increase the forward power, effectively avoiding the jamming phenomenon of the aluminum plate cold rolling mill when the strip passes through the rolling mill, ensuring that the cold rolling mill automatically completes the threading work, reducing the manual assistance time and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic diagram of the top view of the air cushion guide plate of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view of the oil blocking unit in the air cushion guide plate of the utility model;

[0016] Figure 3 It is a front view structural schematic diagram of the oil blocking unit in the air cushion guide plate of the utility model;

[0017] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of AA;

[0018] Figure 5 It is a schematic diagram of the installation position of the air cushion guide plate of the utility model;

[0019] In the above figure: 1-first guide plate unit; 1.1-connecting plate; 1.2-guide plate body; 1.3-guide rail; 1.4-air outlet; 2-transmission member; 3-second guide plate unit. DETAILED DESCRIPTION

[0020] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0021] Combined with Figure 1-4 The utility model is described in detail. An air cushion guide plate for assisting the automatic threading of an aluminum plate cold rolling mill is described. At least one guide plate unit is arranged between the entrance guide roller and the working roller of the cold rolling mill. The guide plate unit includes a plate-shaped guide plate body 1.2. The guide plate body 1.2 is connected to the frame through a connecting plate 1.1. A plurality of guide rails 1.3 protruding from the upper surface of the guide plate body 1.2 are arranged on the guide plate body 1.2 at intervals. The guide rails 1.3 extend along the feeding direction of the cold rolling mill. The guide rails 1.3 can reduce the contact surface between the rolling oil or foreign matter on the guide plate body 1.2 and the strip material, thereby reducing the friction force. Blowing components are arranged between adjacent guide rails 1.3. The material of the guide plate body 1.2 is metal, and the material of the guide rail 1.3 is copper alloy. The blowing component includes at least one A blowing port 1.4 is provided, and an air outlet end of the blowing port 1.4 is arranged between adjacent guide rails 1.3; an air inlet end of the blowing port 1.4 is connected to a high-pressure air source through a pipeline; an air outlet end of the blowing port 1.4 extends upward through the guide plate body 1.2; the blowing port 1.4 blows out an upward and forward air flow to support the strip and offset the influence of the strip weight, thereby effectively solving the problem of sagging of the thin material head and providing a certain forward air flow power. The cooperation of the guide plate body 1.2, the blowing port 1.4 and the copper alloy guide rail 1.3 made of metal material can reduce the contact area between the guide plate body 1.2 and the surface of the aluminum plate, reduce the influence of oil stains on the surface of the strip, and increase the forward power, thereby effectively avoiding the jamming phenomenon of the aluminum plate cold rolling mill when the strip passes through the rolling mill, and improving production efficiency.

[0022] As an optional design, the air cushion guide plate for assisting the automatic threading of the aluminum plate cold rolling mill is preferably provided with two guide plate units spaced apart along the feeding direction of the cold rolling mill between the deflection roller and the working roller at the entrance of the cold rolling mill, which are the first guide plate unit 1 and the second guide plate unit 3. A transmission member 2 for assisting the material transmission is provided between the guide plate bodies 1.2 of the first guide plate unit 1 and the second guide plate unit 3. Figure 1 Feed in the direction of the middle arrow, the height of the guide body 1.2 of the second guide plate unit 3 is slightly higher than the height of the guide body 1.2 of the first guide plate unit 1, to prevent the strip from entering the gap between the guide plate bodies, and at the same time to have a certain drainage effect on the rolling oil splashed on the guide plate body 1.2. The transmission part 2 is set to better guide the strip to move forward, ensure that the cold rolling mill automatically completes the threading work, reduce manual assistance time, and improve production efficiency.

[0023] As an optional design, the air cushion guide plate that assists the automatic strip threading of the aluminum plate cold rolling mill is preferably used, and the blowing port 1.4 is inclined toward the direction close to the entrance of the cold rolling unit. The wind direction blown out of the blowing port 1.4 is inclined along the forward direction of the strip, and there is a certain angle between the wind direction and the guide plate body 1.2. The wind blown out of the blowing port 1.4 forms an air cushion between the guide plate body 1.2 and the aluminum plate, which effectively solves the problem of sagging of the thin material head during the forward movement of the strip while reducing the friction.

[0024] As an optional design, the air cushion guide plate for automatically threading the auxiliary aluminum plate cold rolling mill is preferably used, and the height of the blowing port 1.4 is lower than the height of the guide rail 1.3 and higher than the height of the upper surface of the guide plate body 1.2, to ensure that the blowing port 1.4 does not directly contact the aluminum plate, and at the same time prevent the rolling oil or foreign matter on the guide plate body 1.2 from entering the blowing port 1.4.

[0025] As an optional design, the air cushion guide plate that assists the automatic strip threading of the aluminum plate cold rolling mill is preferably used, and the transmission member 2 is a conveyor belt or a guide wheel, and the conveyor belt or the guide wheel is driven by a driving member to better guide the strip to move forward.

[0026] Combined with Figure 1-5 The working process of the air cushion guide plate for assisting the automatic threading of the aluminum plate cold rolling mill of the utility model is described in detail as follows:

[0027] like Figure 5At the position pointed by the middle arrow, according to the distance between the cold rolling mill inlet deflection roller and the working roller, at least one guide plate unit is arranged between the cold rolling mill inlet deflection roller and the working roller, the guide rail 1.3 reduces the contact surface between the rolling oil or foreign matter on the guide plate body 1.2 and the strip, reduces the friction, and the air outlet 1.4 blows out an upward and forward airflow to support the strip, offset the influence of the strip weight, and provide a certain forward airflow power, thereby effectively solving the problem of thin material head sagging. The guide plate body 1.2, the air outlet 1.4 and the copper alloy guide rail 1.3 cooperate to reduce the contact area between the guide plate body 1.2 and the surface of the aluminum plate, reduce the influence of oil on the surface of the strip, and increase the forward power, effectively avoiding the jamming phenomenon of the aluminum plate cold rolling mill when the strip passes through the rolling mill, and improving production efficiency;

[0028] A plurality of guide plate units are arranged at intervals along the feeding direction of the cold rolling mill between the inlet guide roller and the working roller, and a transmission member 2 for assisting in conveying materials is arranged between adjacent guide plate bodies 1.2. The height of the guide plate body 1.2 of the second guide plate unit 3 is slightly higher than the height of the guide plate body 1.2 of the first guide plate unit 1 to prevent the strip from entering the gap between the guide plate bodies and to have a certain drainage effect on the rolling oil splashed on the guide plate body 1.2. The transmission member 2 is arranged to better guide the strip to move forward, thereby ensuring that the cold rolling mill automatically completes the strip threading work, reducing the time for manual assistance, and improving production efficiency.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. An air cushion guide plate for assisting the automatic threading of an aluminum plate cold rolling mill, characterized in that: At least one guide plate unit is arranged between the inlet guide roller and the working roller of the cold rolling mill, and the guide plate unit includes a plate-shaped guide plate body, which is connected to the frame through connecting plates, and a plurality of guide rails protruding from the upper surface of the guide plate body are arranged on the guide plate body at intervals, and the guide rails extend along the feeding direction of the cold rolling mill, and blowing assemblies are arranged between adjacent guide rails, and the blowing assemblies include at least one blowing port, and the air inlet end of the blowing port is connected to the high-pressure air source through a pipeline.

2. The air cushion guide plate for assisting the automatic threading of the aluminum plate cold rolling mill according to claim 1 is characterized in that: A plurality of guide plate units are arranged at intervals between the inlet guide roller and the working roller of the cold rolling mill along the feeding direction of the cold rolling mill, and transmission parts for assisting in conveying materials are arranged between the guide plate bodies of adjacent guide plate units.

3. The air cushion guide plate for assisting the automatic threading of the aluminum plate cold rolling mill according to claim 1 or 2, characterized in that: The air blowing port is inclined toward the direction close to the entrance of the cold rolling mill.

4. The air cushion guide plate for assisting the automatic threading of the aluminum plate cold rolling mill according to claim 3 is characterized in that: The height of the air blowing port is lower than the height of the guide rail and higher than the height of the upper surface of the guide plate body.

5. The air cushion guide plate for assisting the automatic threading of the aluminum plate cold rolling mill according to claim 3 is characterized in that: The transmission element is a conveyor belt or a guide wheel.

6. The air cushion guide plate for assisting the automatic threading of the aluminum plate cold rolling mill according to claim 3 is characterized in that: The material of the guide plate body is metal, and the material of the guide rail is copper alloy.

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