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Air-cushion frictionless rolling mill roll cleaner and air-cushion frictionless rolling mill roll cleaning method

A frictionless, rolling mill technology, applied in the direction of keeping the roll equipment in an effective state, metal rolling, metal rolling, etc., can solve problems such as increasing compressed air consumption, affecting product quality, and inability to effectively prevent and reduce stress concentration. , the effect of shortening maintenance time and improving utilization

Inactive Publication Date: 2016-03-30
柳燕明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current roll cleaners of rolling mills come in various forms, and are always undergoing continuous renovation. Image 6 — Figure 10 It is the current single-set structure rolling mill roll cleaner, Figure 11 — Figure 16 It is the roll cleaner of the current double-set structure rolling mill, of which Figure 9 The oil-squeezing roller cleaner has the advantage that there is no friction with the surface of the back-up roller body, and does not damage the smoothness of the roller surface. The disadvantage is that it cannot block the oncoming debris residue. When the rolling speed is high Oily
[0008] remove Figure 9 In addition, these friction-type roller cleaners are not perfect in use and maintenance, and the following problems often occur: the pressure applied to the roller cleaner is small, or due to defects such as scraper and felt wear, the roller cleaner cannot effectively prevent If there is excess rolling oil on the roll surface, oil stains will appear on the surface of the strip and foil products, that is, oil or oil spots on the surface, which will affect the improvement of product quality; in order to reduce the problem of oil on the surface of the strip and foil, It is often necessary to increase the plate surface purge of the compressed air at the outlet of the rolling mill, which will inevitably increase the consumption of compressed air
If the air cylinder behind the roller cleaner exerts too much pressure, it will aggravate the wear of the rubber plate and felt in the roller cleaner

Method used

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  • Air-cushion frictionless rolling mill roll cleaner and air-cushion frictionless rolling mill roll cleaning method
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  • Air-cushion frictionless rolling mill roll cleaner and air-cushion frictionless rolling mill roll cleaning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 2 As shown, the air-cushion frictionless rolling mill roll cleaner, on the shelf 11 adapted to the width of the rolling mill back-up rolls, a number of cylinder rods 10 and a number of guide rods 3 are fixed to set the groove seat 2, and the groove seat 2 is provided with the first U-shaped groove, An air injection box is arranged in the first U-shaped groove, and one end of the air injection box is provided with a compressed gas source pipeline, and a number of air injection holes 1.1.9 are arranged on one side of the air injection box, and the air injection holes 1.1.

[0041] The compressed air source pipeline provides compressed air to the air storage tank cavity in the air injection box, and is ejected from several air injection holes 1.1.9. Multi-row, staggered, and several streams of air flow are ejected from the air injection holes 1.1.9 vertically or obliquely against the rotation direction of the support roller 12, changing from a dynamic press...

Embodiment 2

[0043] On the basis of Example 1, such as figure 1 As shown, (the figure of the lower roller cleaning device is omitted) the air injection box is provided with a side vertical arc surface 1.1.1, which is adapted to the support roller 12, and several air injection holes 1.1.9 are set at 30°-90° On the side arc surface 1.1.1. The side vertical arc surface 1.1.1 is similar to the surface arc of the support roller 12, when the air cushion is formed, the cushion lift height is consistent, the coverage area is large, and the roll cleaning effect is good. The vertical or inclined setting of the angle of the air injection hole 1.1.9 can make the air cushion more uniform, and can realize part of the air flow toward the rotation direction of the support roll, and improve the effect of blocking rolling oil and chip residue. The jet hole 1.1.9 has a diameter of 0.1-2 mm.

Embodiment 3

[0045] On the basis of Embodiment 1 or 2, the fiber cloth 1.3 is wrapped around the air jet box, and the air jet box is fixed in the first U-shaped groove through the pressing plate 1.5 and the bolt with holes 1.6. The fiber cloth 1.3 can block the uniform airflow, prolong the residence time of the airflow between the air cushions of the two arc gaps, and limit the overflow of the airflow of the air cushion, which is beneficial to energy saving. In addition, the fiber cloth 1.3 can also play the role of intercepting rolling oil, intercepting, blocking and temporarily storing debris residues.

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PUM

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Abstract

The invention provides an air cushion friction-free rolling machine roller cleaner and an air cushion friction-free rolling machine roller cleaning method and belongs to the manufacture field of nonferrous metal equipment. The air cushion friction-free rolling machine roller cleaner and the air cushion friction-free rolling machine roller cleaning method are characterized in that an air injection plate combination body is clamped in a U-shaped groove of a groove-type base and an air cylinder rod fixed on a frame is connected with the groove-type base in a hinged mode through a pre-positioning shaft nose. Two sealed air storage groove cavities are formed inside the air injection plate combination body, wherein each sealed air storage groove cavity is connected with a stop valve and an air supply pressure regulating valve. Vertical or inclined air injection holes are formed in lateral vertical cambered surfaces on two sides of the air injection plate combination body, so that a jet-flow-type air curtain is formed. Air flow is injected out from the holes in the lateral vertical cambered surfaces on two sides of the air injection plate combination body through fiber cloth in an inclined and controlled mode so that an air cushion is formed between the vertical cambered surfaces at two sides of the air injection plate combination body and a cambered surface of a supporting roll body. Through regulating hoverheight, overflowing air flow pushes off and controls the superfluous rolling oil splashed on the surface of the supporting roll body in a head-on mode in advance and blocks fragments and residues to pass. Three usage methods are used to protect the degree of finish of the supporting roll body. Not only is surface quality of products is improved, but also the occurrence of static electricity fire disasters of a rolling machine is reduced.

Description

technical field [0001] The invention belongs to the field of non-ferrous metal equipment manufacturing, and in particular provides an air-cushion frictionless rolling mill roll cleaner in aluminum sheet, strip and foil processing, and an air-cushion frictionless rolling mill roll cleaning method. Background technique [0002] Mill roll cleaner is an essential device for modern high-speed production of aluminum sheet, strip and foil rolling mills, such as Figure 6 As shown, its function is to remove the excess rolling oil splashed on the surface of the back-up roll body, block the broken belt or the aluminum chips splashed along the surface of the roll, and prevent them from being thrown on the surface of the aluminum material at the rolling exit. [0003] The current roll cleaners of rolling mills come in various forms, and are always undergoing continuous renovation. Figure 6 — Figure 10 It is the current single-set structure rolling mill roll cleaner, Figure 11 — Fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B28/02
Inventor 柳燕明
Owner 柳燕明