JPS59147714A - Steel sheet take-up reel - Google Patents

Abstract

PURPOSE:To prevent occurrence of flaws on the surface of a coil taken up on a reel by moving plural divided faces of an axis independently to the direction of the axial line and making the segments movable independently to radial direction. CONSTITUTION:When each division of an axis 9 is moved in the direction of axial line by operating a hydraulic cylinder 14 individually, a wedge-shaped member 10 of the axis is moved in the direction of axial line. At this time, the wedge-shaped member 12 of corresponding division of a segment 11 is moved upward or downward through a slanted face. Consequently, the outer diameter of the segment 11 is expanded or reduced. Thus, even when deformation is cuased in a part of the inner diameter 13 of a coil taken up on a reel, other segment division comes into sure contact with the inner diameter 13 of the coil and transmits a pressure. Accordingly, occurrence of surface flaws caused by slippage of coil faces at the time of acceleration or deceleration due to deficiency of expanding pressure of the coil.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reel for winding a steel plate, and more particularly to a drum for winding a steel plate that is useful for effectively preventing flaws from occurring on the surface of a coil wound on the reel.

Conventionally, the structure of payoff reels and take-up reels for interstitial rolling mills, cold-pressing mills, inspection lines, and other equipment for producing steel sheets consists of a wedge-shaped member 2 of four segments 1, and a wedge-shaped member 6, as shown in FIG. By engaging the wedge-shaped member 4 formed on the shaft 3 and moving the six shafts 3 in the axial direction by the hydraulic cylinder 5, the outer diameters of the four segments 1 are integrally expanded and contracted. It has become. Therefore, when the inner diameter part 6 of the wound coil is bent and the protrusions are deformed 7, a situation as shown in FIG. 2 occurs, and one of the four segments 1 is overloaded. It happens. When such a situation occurs, as mentioned above, since the conventional steel plate take-up reel has a structure in which the four segments 1 expand and contract in the radial direction, the other three segments also operate. I feel like I can't do anything. Therefore, the pressure exerted on the inner diameter part 6 of the coil by the outer circumferential surface of the segment 1 (see arrow in Fig. 2)
This causes flaws on the surface of the coil due to misalignment between the coil surfaces during acceleration and deceleration.

An object of the present invention is to provide a steel plate take-up reel that can effectively prevent the occurrence of scratches on the surface of the coil wound on the reel, and its features are as follows: By independently moving the plurality of dividing surfaces of the shaft in the axial direction, the segments can be moved independently in the radial direction.

According to the aspect of the present invention shown in FIG. 1, the six shafts are divided into a plurality of surfaces in the circumferential direction, and each of the plurality of divided surfaces has a plurality of stepped inclined surfaces in the axial direction. At least two of the six axes are arranged in alignment in the axial direction, and a retaining surface that combines with the inclined surface formed on the six axes is formed on the inner peripheral surface of the segment, and the six axes are aligned in the axial direction. There is provided a steel plate take-up reel characterized in that it has a device for moving the segment to expand or contract the outer diameter of the take-up shaft formed by the segment.

According to the second aspect of the present invention, the plurality of pairs are divided into a plurality of surfaces in the circumferential direction, and each of the plurality of divided surfaces has a plurality of inclined surfaces in the axial direction. 6 axes and a plurality of segments forming a row of inclined surfaces formed on the inner peripheral surface that combine with the inclined surfaces formed on the 6 axes, and 6 axes being moved independently in the axial direction to separate the segments from each other independently. A steel plate take-up reel is provided, characterized in that it has a device for moving the steel plate in the radial direction.

Hereinafter, preferred embodiments of cooling of the present invention will be described with reference to the accompanying drawings. FIG. 3 is a diagram schematically showing a steel plate take-up reel 8 of the present invention. Reference number 9.10.11 in the figure
．． 12 indicates a six-axis wedge-shaped member, a six-axis wedge-shaped member, a segment, and a segment-shaped wedge-shaped member, respectively. In this embodiment, the six shafts 9 and the segments 11 are divided into four in the circumferential direction (see FIG. 4). Furthermore, according to the present invention, the six shafts 9 and the segments 1-11 are divided into two parts at the center of the reel, so that the inner diameter part 13 of the coil and the eight divided surfaces of the segment j- are in contact with each other, and Pressure (see arrow in FIG. 4) is applied to the inner diameter 13 of the coil through the two contact surfaces.

Next, a mechanism for independently expanding and contracting the segments 11 consisting of eight dividing planes in the radial direction will be described.

First, on the inner circumferential surface of each divided portion of the six shafts 9, a connecting member 15 with a hydraulic cylinder 14 connected to a hydraulic cylinder 14 arranged inside the six shafts is provided.

It is structurally preferable that this hydraulic cylinder 14 is installed in the center of the steel machine take-up reel 8 and connects the two divided parts of the six shafts 9 so as to form a pair in the axial direction.

The wedge-shaped members 10 of the 6-axis 9 and the wedge-shaped members 12 of the segment 11 are arranged in axial alignment on the respective dividing planes of the 6-axis 9 and the segment 1, and both wedge-shaped members 10. The surfaces are adapted to engage with each other. Therefore, when the hydraulic cylinders 14 are actuated individually to move each division of the six shafts 9 in the axial direction, the wedge-shaped member 10 of the six shafts 9 is also moved in the axial direction, and in this case the corresponding division of the segment 11 The wedge-shaped member 12 is moved upwardly or downwardly through the inclined surface, thereby expanding or contracting the outer diameter of the segment 11.

In order to transmit the hydraulic pressure to the hydraulic cylinder 14, it is desirable to use a rotary joint after drilling an oil passage hole in the reel shaft.

The steel plate take-up reel 8 of the present invention has the above-described structure and the eight divided portions of the segment 11 can move independently in the radial direction, so that the deformation shown in FIG. 4 occurs in the coil wound on the reel. Even if a part of the inner diameter part 13 is formed, other segmented parts can reliably contact the coil inner diameter 13 and transmit pressure (see Figure 4), so acceleration and deceleration due to insufficient coil expansion pressure can be avoided. It is possible to effectively prevent the occurrence of surface flaws due to misalignment of the coil surfaces.

In fact, the payoff reel 1 on the entrance side of temper rolling as shown in Fig. 5
When the steel plate take-up reel 8 of the present invention was used in No. 6, the surface flaw occurrence rate was only 0.2%.

Considering that the incidence of surface flaws is 0.6% when using a conventional steel plate take-up reel having a segment consisting of four dividing planes, it can be said that the present invention is extremely excellent.

In Fig. 5, reference numbers 16 to 24 respectively indicate an inlet payoff reel, a base material coil, a steel plate, an inlet deflation roll, an outlet deflation roll, a work roll, a backup roll, a tension reel, and a wound coil after rolling. It shows.

[Brief explanation of the drawing]

Figure 1 is a schematic cross-sectional view of a conventional steel plate take-up reel having four segments, and Figure 2 shows a case where the steel plate take-up reel shown in Figure 1 is used. FIG. 3 is a schematic cross-sectional view of a steel plate take-up reel according to the present invention, and FIG. FIG. 5 is a diagram illustrating the relationship between the deformation of the inner diameter portion of the coil and the segment division portion that occurs when the reel is used. FIG. 5 is a schematic diagram of a temper rolling mill to which the steel plate take-up reel of the present invention is applied. (Reference number) 8: Steel plate take-up reel, 9: 6 shafts, 10: Wedge-shaped member, 11: Segment, 12: Wedge-shaped member, 13: Inner diameter portion of coil, 14: Hydraulic cylinder Applicant: Sumitomo Metals Co., Ltd. Agent Patent Attorney Arai Shut up zl◆ (Figure 3 (

Claims (1)

Scope of Claims: (13) having 6 axes divided into a plurality of surfaces in the circumferential direction, each of the plurality of divided surfaces having a plurality of stepped surfaces formed in the axial direction; at least two shafts are arranged in alignment in the axial direction;
1. A steel plate take-up reel comprising a device for moving the shaft in the axial direction to expand or contract the outer diameter of the take-up shaft formed by the segments. (2) It is divided into a plurality of surfaces in the circumferential direction, and each of the plurality of divided surfaces is formed with a plurality of sloped surfaces in the axial direction, forming a plurality of stepped pairs of six axes and the six axes. a plurality of paired segments each having a plurality of paired inclined surfaces formed in a stepped shape on an inner circumferential surface, the plurality of paired inclined surfaces forming a plurality of stepped surfaces;
1. A steel plate take-up reel comprising a device for independently moving six shafts in the axial direction and moving the segments independently in the radial direction.