JPH04121521U - Conveyor roll for metal strip process line - Google Patents

Abstract

(57) [Summary] [Structure] In order to prevent slippage between the metal strip and the transport roll, the surface layer is formed of an elastic material such as rubber or urethane, and the transport roll used in the metal strip process line has a surface layer made of an elastic material such as rubber or urethane. , a hard elastic material was used for both ends 2 of the roll trunk length of the transport roll 1, and a soft elastic material was used for the central portion 3. [Effect] The roll of the present invention can effectively prevent uneven wear and peeling at both ends of the roll body. Thereby, meandering of the strip can be suppressed, and the number of occurrences of troubles such as the looper car coming off the wheels due to meandering of the strip can be reduced.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is suitable for printing metal strips such as ordinary steel, special steel, stainless steel, and non-ferrous metals. Regarding the conveyance rolls used in process lines, for more information, please refer to Metal Strip and Conveyance To prevent slippage between rolls, the surface layer is made of an elastic material such as urethane. This relates to conveyance rolls.

0002

[Conventional technology]

Generally, metal strips such as ordinary steel, special steel, stainless steel, and nonferrous metals (hereinafter referred to as A pin that applies tension to the strip is used in the process line for Rolls used for bridle rolls, strip rolls, etc. The surface layer is made of an elastic material such as rubber or urethane to prevent slippage between the things are used.

0003 The material of this elastic material is generally uniform in the length direction of the roll body (especially Publication No. 53-39362, etc.). In addition, JP-A-63-115609 describes synthetic resins with different hardness. Elastic lining materials such as oil, fibers, and rubber-impregnated woven fabrics can be used to mix soft and hard materials. They are arranged on the outer periphery of the roll body with a predetermined width in the length direction of the roll body, and the roll surface is A conveyor roll with excellent slip resistance has been proposed.

0004

[Problem that the idea aims to solve]

However, with the above-mentioned general anti-slip roll, the strip curves in the width direction. In the case of a curved shape, the support stress of the strip is concentrated at both ends of the roll body length, causing uneven friction. There was a problem that wear occurred and the surface layer peeled off. Also, both sides of the roll body length are Uneven wear on the ends may cause the strip to meander, causing the looper car to come off. There was also.

[0005] The above-mentioned roll of Japanese Patent Application Laid-open No. 115609/1983 can also deal with such problems. do not have. The present invention aims to provide a long-life conveyance roll that solves the above problems. target

[0006]

[Means to solve the problem]

The present invention uses a surface to prevent slippage between the metal strip and the conveyor roll. A process line for metal strips whose layers are made of elastic materials such as rubber and urethane. In the conveyance roll used, hard elastic bullets are attached to both ends of the roll body length of the conveyance roll. Metal strip process characterized by using a soft elastic material in the central part This is a conveyor roll for the line.

[0007]

[Effect]

According to the present invention, in order to prevent the slip between the metal strip and the conveyor roll, , a process line for metal strips whose surface layer is made of an elastic material such as urethane. In the transport roll used, a hard elastic material is used at both ends of the roll body length of the transport roll. By using a soft elastic material in the center, uneven wear on both ends is drastically reduced. to this This dramatically reduces problems such as peeling of the elastic material at both ends, and also prevents meandering of the strip. It is also possible to prevent further troubles.

[0008]

【Example】

An embodiment of the present invention will be described based on the drawings. FIG. 1 is a perspective view schematically showing an embodiment of the roll of the present invention. As the surface layer, a soft elastic material is used at the center part 3 of the roll body length, and a hard elastic material is used at both ends 2. It is used.

[0009] Figure 2 shows an example of using the roll of the present invention in a continuous annealing and pickling line for stainless steel strips. FIG. This line is for removing scale from the surface of the stainless steel strip 4. The roll of the present invention was used as the anti-roll 5. The reason is this pinch roll 5. This is because the shearing load applied to the surface is particularly large, and rubber peeling is likely to occur. this If rubber peels off on the roll, scratches may occur on the board, and lamination may occur due to reduced tension. Problems such as power outages occurred, and we had no choice but to shorten the replacement cycle.

0010 In addition, the soft rubber that has traditionally been used is used as the soft material for the center of the roll body length. Hard rubber was used as the hard material at both ends of the roll body length. As a result of actual operation, the problem of rubber peeling of the pinch roll 5 of the present invention was found to be approximately less than that of the conventional pinch roll. The amount of energy used has been reduced to 1/2, and the frequency of roll replacement has also been reduced to 1/2, resulting in a significant improvement in basic unit consumption.

[0011]

[Effect of the idea]

As explained above, the roll of the present invention prevents uneven wear and peeling at both ends of the roll body. separation can be effectively prevented. This prevents the strip from meandering. This reduces the number of troubles such as looper cars falling off due to meandering strips. can be reduced. As a result, it contributes to improved product quality and equipment maintenance.

[Brief explanation of drawings]

FIG. 1 is a perspective view schematically showing an embodiment of a conveying roll of the present invention.

FIG. 2 is a roll layout diagram showing an example in which the conveying roll of the present invention is used in a continuous annealing and pickling line for stainless steel strips.

[Explanation of symbols]

1 Transport roll 2 Both ends of roll body length 3 Center part of roll body length 4 Stainless steel strip 5 Pinch roll

Claims (1)

[Scope of utility model registration request] 1. A transport roll used in a process line for metal strips, the surface layer of which is formed of an elastic material such as rubber or urethane in order to prevent slip between the metal strip and the transport roll. A conveyance roll for a metal strip process line, characterized by using a hard elastic material at both ends of the roll body length and a soft elastic material at the center.