JPH0639208U - roll - Google Patents

Abstract

(57) [Summary] [Objective] To provide a roll capable of improving the cooling effect of the body portion without using cooling water by modifying the shape of the end plate. [Structure] 1 is a roll body (iron core), 2 is an elastic lining, which are connected to a roll shaft 3 via a boss 6 through an arm 5 and an impeller-shaped end plate 4. Since the end plate is formed in the shape of an impeller, the rotation of the roll forms an air flow path → in the roll body 1, and the air flow can cool the roll body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a process roll for iron making.

[0002]

[Prior art]

 Rolls such as process rolls for cold rolling often have an elastic body such as rubber lined on the surface. During use of these rolls, the temperature of the elastic body rises due to internal heat generated by the deformation of the elastic body and heat generated from the steel plate. In particular, when the elastic body has heat inside, it may peel off from the adhesive layer with the iron core.

As a conventional technique for providing a cooling means to a roll, the cooling means as shown in JP-A-58-136723, JP-A-60-181244, and JP-A-61-130426 is provided. There is a roll.

[0004]

[Problems to be solved by the device]

 All the rolls provided with the above-mentioned conventional cooling means require pressurized water for cooling. That is, there is a problem that the water energy for cooling is required and the temperature of the roll becomes high once the water stops. Among the above-mentioned conventional techniques, particularly in the example in which the impeller is provided inside the roll, when the cooling water stops, the stopped water is agitated by the impeller and the temperature rise is promoted. Further, since it is necessary to drive the impeller independently of the roll, there is a problem that the structure of the roll shaft end becomes complicated, it takes time to assemble, and maintenance work increases.

It is an object of the present invention to solve the above-mentioned problems and provide a roll capable of uniformly cooling a steel sheet by modifying the shape of the end plate of the roll without using cooling water or an impeller inside the roll. It is what

[0006]

Means for Solving the Problems The present invention solves the above-mentioned problems and is applied to a process roll for manufacturing a cold-rolled steel sheet, and the following technical means are adopted. That is, the roll is characterized in that the end plates at both ends of the roll have an impeller structure and an air passage is provided inside the roll cylinder in the roll axial direction.

[0007]

[Action]

 According to the present invention, since the end plates at both ends of the roll have an impeller structure and an air passage is provided inside the roll cylinder in the direction of the roll axis, the impeller causes the roll cylinder to move to the roll body as the roll rotates. Air will flow and the roll will be cooled.

[0008]

【Example】

 1A and 1B are explanatory views of an embodiment of the present invention. FIG. 1A is a front sectional view and FIG. 1B is a side view. 1 is a roll body (iron core). 2 is an elastic body lining. The end plates on both sides of the roll are impeller-shaped end plates 4, and the inside of the roll body 1 is provided with an air flow path → in the axial direction of the roll shaft 3. In addition, 5 is an arm and 6 is a boss. The impellers of the impeller-shaped end plate 4 have the same twist direction, and have a structure in which air flows in a push-pull type.

In this embodiment configured as described above, a flow of air is formed as the roll is used (rotated), so that the body of the roll is directly cooled. The present invention was applied to a roll of φ300 × 1600 mm. The roll body has a thickness of 16 mm and the rubber lining has a thickness of 20 mm. When the conventional cooling by axial water cooling was used, the temperature measured by the thermocouple inserted between the iron core and the rubber lining was 152 ° C, but it decreased to 96 ° C with the roll of the present invention. Therefore, the effect of the present invention was confirmed. The shape of the impeller can be appropriately determined depending on the applied roll.

Although not shown, a large number of blade structures are provided on a concentric circle near the outer periphery of the end plate, and, for example, a cylinder having the same axial center as the roll body 1 is provided inside the roll body (iron core) 1. If the plate is attached to the roll body 1 with a predetermined gap, and the air when the roll rotates is made to flow centrally between the inner surface of the roll body 1 and the cylindrical plate, the cooling effect of the roll is further improved. Can be improved.

[0011]

[Effect of device]

 Since the present invention is configured as described above, the following excellent operational effects can be obtained. (1) It does not require energy for flowing the cooling medium from others. (2) The structure of the roll is simple.

Therefore, unlike the conventional rubber-lined roll, it is not necessary to replace the rubber, and the roll maintenance work can be simplified.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of the present invention.
1A is a front sectional view, and FIG. 1B is a side view.

[Explanation of symbols]

 1 Roll body (iron core) 2 Lining (elastic body) 3 Shaft 4 Impeller-shaped end plate 5 Arm 6 Boss → Air flow path

Claims (1)

[Scope of utility model registration request] 1. A process roll for producing a cold-rolled steel sheet, wherein the end plates of the roll have an impeller structure and an air passage is provided inside the roll cylinder in the roll axial direction.