JPH081239A - Rubber-made sleeve for coiling metallic strip - Google Patents

Abstract

PURPOSE:To prevent recessed deformation of a sleeve body by burying a wire- shaped highly elastic deformation preventing body, which extends in the axial direction of the sleeve, into the body of the sleeve in large numbers and in the circumferential direction. CONSTITUTION:A large number of wire-shaped highly elastic deformation preventing body 2 are buried in the axial direction in a cylindrical rubber-made sleeve body 1 to be attached to a coiling reel, at a required space apart between them in the circumferential direction. When a metallic strip is coiled on the circumferencial surface of the sleeve body 1, a large compression stress due to the coil tightening force of the metallic strip is imparted to the sleeve body 1. Elongation in the axial direction of the sleeve body 1 due to the compression stress is reduced by the highly elastic deformation preventing body 2; and a recessed deformation is prevented from generating in a part abutting on the metallic strip coil. The product yield is improved, and the durability of the sleeve body 1 is also improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber sleeve for winding a metal band.

[0002]

2. Description of the Related Art A metal strip such as a steel strip after being treated in a continuous annealing facility is wound into a coil on a winding reel of a winding device. The inner diameter of the coil is the diameter of the winding reel. Depends on Since the inner diameter of the coil is required to be different depending on the customer, a sleeve having a diameter according to the customer's request is attached to the winding reel and a metal strip is wound on the sleeve in a coil shape. When removing the coil from the sleeve (winding reel), such a sleeve can be reduced in diameter to form a gap between the inner circumference of the coil and the sleeve, and after the sleeve is mounted on the winding reel. Since the take-up reel is expanded in diameter and the sleeve is fixed to the take-up reel to wind up the metal band, the take-up reel is made of a rubber sleeve that can be expanded and contracted. As a prior art, for example, a stepped sleeve for winding a metal band coil is known as disclosed in Japanese Utility Model Laid-Open No. 4-104211.

[0003]

However, when such a rubber sleeve is mounted on the take-up reel and the metal strip 11 is wound up, the rubber sleeve 21 mounted on the take-up reel 24 as shown in FIG. The metal band 11 is deformed by the coil tightening force, and as shown in the drawing, a recess 25 is formed at the abutting portion of the inner diameter of the coil due to the elongation inside the rubber sleeve. The recess 24 reaches a depth of about 1.0 mm, although it slightly varies depending on the width of the metal strip 11 and the winding tension. When the rubber sleeve 21 is partially deformed in this manner, the inner diameter of the coil is reduced. Therefore, a portion of the coil near the rubber sleeve 21 receives a large compressive stress, and the metal band of this portion undergoes plastic deformation. As a result, when the coil is unwound, the shape of the metal strip near the rubber sleeve 21 becomes poor and the product yield is reduced. There is a problem that the length of the metal strip that causes such a defective shape is as long as 50 to 100 m and the yield is greatly reduced. The present invention has been made to provide a rubber sleeve for winding up a metal band that advantageously solves such a problem, and ensures a partial depression of a rubber sleeve main body during coil winding. The purpose is to prevent the metal strip from being defective in shape by suppressing it.

[0004]

A rubber sleeve for winding a metal band according to the present invention, which has solved the above-mentioned problems, prevents a wire-like highly elastic deformation extending axially in the meat of a cylindrical sleeve body. It is characterized in that a large number of bodies are embedded in the circumferential direction with a required space between them.

[0005]

[Function] The rubber sleeve for winding the metal band as described above is
Although it is mounted on the winding reel body, the winding reel body is expanded in diameter and fixedly integrated with each other, so that the outside diameter is adjusted to a winding reel having a diameter according to the demand of the customer. In the meat of the cylindrical sleeve main body, a large number of wire-shaped high-elasticity deformation preventing bodies extending in the axial direction are embedded in the circumferential direction at required intervals, so that the sleeve main body is made of metal. When the strip is wound into a coil, the dent deformation that has occurred in the contact portion between the sleeve main body and the wound coil due to the axial extension of the sleeve due to the coil tightening force is accurately prevented. That is, the wire-like high-elasticity deformation preventing body prevents the sleeve main body from extending in the axial direction, that is, the longitudinal direction, and thereby plastic deformation is caused to the metal band of the coil wound around the sleeve main body near the sleeve main body. It is possible to surely prevent the depression deformation of the sleeve main body which has caused the product yield to be lowered.

In the above-mentioned rubber sleeve for winding a metal band, many wire-like high-elasticity deformation-preventing bodies which are axially embedded in the meat of the sleeve main body are mainly composed of the sleeve. They may be embedded on the concentric circles with a required space between them, but when the sleeve-based layer is thick, a large number of high-elasticity deformation prevention bodies are cylindrical so that they are located on the inner and outer concentric circles. If it is embedded in the meat mainly composed of the sleeve, the dent deformation can be more surely prevented.

Further, the wire-like high elastic deformation preventive body embedded in the meat mainly composed of the sleeve is particularly limited as long as it has a large elastic coefficient capable of effectively preventing the expansion of the sleeve. Instead, metal wire such as steel wire is generally used, but it is lightweight and can reliably prevent the sleeve from stretching without increasing the weight of the sleeve, and can be easily attached to and detached from the winding reel. Carbon fibers and the like are preferable in order to make them more advantageous.

Further, as an embedding mode of such a wire-shaped high-elasticity deformation preventing body, the high-elasticity deformation preventing body suppresses the elongation of the sleeve main body so as to extend over substantially the entire length of the sleeve main body in the axial direction, that is, the longitudinal direction. Although it is general to prevent the metal strip in the inner diameter portion of the coil from being defective in shape, it is possible to sufficiently exhibit the function even if there are unfilled portions at both ends of the sleeve main body. Further, the high elastic deformation preventing members are embedded in the circumferential direction at substantially equal intervals of about 1 to 10 mm. Particularly, when the layer thickness of the sleeve main body becomes thicker than 50 mm, the layer thickness is increased to 2 mm in the layer thickness direction. ~
By embedding it in a plurality of concentric circles inside and outside at intervals of 10 mm, it is possible to more reliably prevent deformation due to winding of the metal strip mainly of the sleeve. .

[0009]

The present invention will now be described in detail with reference to the illustrated embodiments. In FIG. 1, reference numeral 1 denotes a cylindrical rubber sleeve main body to be mounted on a winding reel, and 2 denotes a large number of pieces are embedded in the meat of the sleeve main body 1 in the circumferential direction with a required space between them. It is a wire-shaped high elastic deformation preventing body extending in the axial direction. In this embodiment, the wire-shaped high elastic deformation preventing body 2 is embedded in the meat in the circumferential direction so as to reach both ends of the sleeve main body 1 having a width wider than the coil width. Of course, is not always necessary.

The thus constructed structure is mounted on the winding reel body in the same manner as the conventional rubber sleeve for winding a metal band of this kind, and then the winding reel body is expanded in diameter to wind the sleeve main body 1. The take-up reel is fixedly integrated with the take-up reel main body and the take-up reel is adjusted and used to have an outer diameter according to the demand of the customer. Since a large number of wire-shaped high-elasticity deformation preventing bodies 2 extending in the axial direction are embedded in the circumferential direction with a required space therebetween, the metal strip 11 is coiled on the circumferential surface of the sleeve main body 1. When wound, the sleeve main body 1 due to the tightening force receives a large compressive stress from the coiled metal band 11 and is plastically deformed to significantly extend in the axial direction. The concave that was generated in the contact area with Deformation is prevented accurately.

Next, an operation example using the present invention will be given together with a comparative example.

[Table 1]

[0012]

[Table 2]

Note 1: For the rubber sleeve, a commonly used neoprene rubber having a hardness of 75 to 80 HS was used. Note 2: The material and diameter of the embedding conditions are the conditions for the wire-shaped deformation preventive body. Note 3: The longitudinal, circumferential, and layer thickness directions of the embedding conditions indicate the embedding conditions of the rubber sleeve deformation preventive body. Note 4: With no longitudinal end portions, the longitudinal end portions of the rubber sleeve of 100 mm were embedded in other parts without embedding the deformation preventive body. Note 5: The steel strip was heat-treated in a steel strip continuous annealing facility, cooled, and temper-rolled.

[0014]

As is apparent from the above description, the present invention is as follows.
Since a large number of wire-shaped high-elasticity deformation preventing bodies extending in the axial direction are embedded in the cylindrical main body of the sleeve in the circumferential direction at required intervals, they are mounted on the winding reel. It is possible to reliably suppress the dent deformation mainly of the sleeve and prevent the defective shape of the inner diameter portion of the metal strip coil, thereby improving the product yield. Moreover, the durability of the rubber sleeve as a main component is remarkably improved, and excellent effects such as cost reduction can be brought about. Therefore, the present invention has an extremely great contribution to the industry as a solution to the problems of the conventional rubber sleeve for winding a metal band.

[Brief description of drawings]

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

FIG. 2 is a sectional view of a conventional metal band winding reel equipped with a rubber sleeve.

[Explanation of symbols]

 1 Mainly sleeve 2 Wire-like high elastic deformation prevention body

Claims (2)

[Claims] 1. A large number of wire-shaped high-elasticity deformation preventing bodies extending in the axial direction are embedded in the meat of a cylindrical sleeve main body in a circumferential direction at a required interval between each other. Rubber sleeve for winding metal bands. 2. The rubber for winding a metal band according to claim 1, wherein a large number of high-elasticity deformation preventing bodies are embedded in the meat of a cylindrical sleeve body so as to be positioned on a plurality of concentric circles. sleeve