JPH0275401A - Device for rolling ring stock - Google Patents

Abstract

PURPOSE:To roll a ring stock with high accuracy by bringing a bearing box at an end of one roll of a pair of grooved rolls to be freely movable back and forth in the axial direction and enabling the roll and a bearing box at the other end to move integrally and relatively. CONSTITUTION:A ring stock W is rolled between a pair of grooved rolls R1, R2. A bearing box 2a at an end of the roll R2 is constructed to be movable back and forth in the axial direction. A bearing box 2b at the other end of the roll R2 is installed to move integrally and relatively together with the roll R2. The ring stock W is put in and removed when those boxes 2a, 2b and the roll R2 are moved. Hence, the stock W is rolled with high accuracy.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ring material rolling device for rolling a ring material between a pair of rotatable grooved rolls.

[Prior Art] It is important for this type of ring material rolling apparatus to satisfy the following two requirements.

■The support of at least one grooved roll can be released to enable setting and removal of the ring material.

(2) Even with such a structure in which support for at least one grooved roll is released, deflection of the roll can be prevented.

Conventional ring material rolling apparatuses include a cantilever type using a cantilever-type grooved roll and a split type using a divisible grooved roll.

In the former cantilever type, as shown in Fig. 5, the ring material W is rolled between a pair of grooved rolls R1 and R2 that are supported in a cantilever manner. At the time of removal, the gap between the grooved rolls R1 and R2 is opened.

On the other hand, in the latter split type, as shown in FIG. When rolling material W, two rolls R are used as shown in the same figure.
2-a and R2-b, and when setting and removing the ring material W, use the two rolls R2-a and R2-b.
The space between R2-b is opened.

[Problems to be Solved by the Invention] The two conventional rolling machines described above have the following problems.

That is, in the cantilever type shown in FIG. 5, since the grooved rolls R1 and R2 are supported by cantilevers, their respective axes tend to bend as shown at 01.02 in the figure. on the other hand,
In the case of the split type shown in Fig. 6, the grooved roll R2
Since it has a fitting structure, its axis line is 0 in the figure.
Like 2, it is easy to bend.

In the end, although these types of rolling apparatuses all allow the setting and removal of the ring material, the rolls R1 and 112 are easily deflected, so that highly accurate rolling cannot be performed. Therefore, it was not possible to satisfy the requirement (2) for this type of rolling apparatus described above.

This invention aims to solve such problems.

[Means for Solving the Problems] A ring material rolling device of the present invention is a ring material rolling device that rolls a ring material between a pair of rotatable grooved rolls, in which one of the grooved rolls is , is equipped in a fixed position by an axle box that supports both ends of the other grooved roll, and the other grooved roll is equipped to be movable in the direction of applying rolling force to the ring material by means of an axle box that supports both ends of the other grooved roll. A rolling device that applies rolling force to the ring material is connected to the axle box that supports both ends, and the axle box that supports one end of the one grooved roll rolls the grooved roll along the axial direction of the grooved roll. The one slotted roll and the axle box that supports the other end of the slotted roll are arranged so that they can be inserted and removed from one end, and are arranged so that they can move relative to each other as a unit. It is characterized by the fact that the material can be inserted and removed.

[Function] The ring material rolling apparatus of the present invention supports all ends of a pair of slotted rolls, that is, each of the four ends in total, by an axle box, and when setting or removing the ring material. The ring material can be set by removing the axle box at one end of one of the grooved rolls, and then moving the one grooved roll and the axle box removed from the grooved roll relative to each other to separate them. This enables high-precision rolling by suppressing the occurrence of deflection of the grooved rolls while also making it possible to remove them.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 4.

FIGS. 1 and 2 are diagrams for explaining a first embodiment of the present invention.

In this embodiment, a pair of upper and lower grooved rolls R1°R2 have respective end portions formed into axle boxes 1a, lb, and 2a.

2b and rotatably supported by the grooved roll R
The right ends of each of R1 and R2 are connected to a drive motor (not shown) by a spindle joint. Further, the axle boxes 1a and lb at both ends of the upper grooved roll R1 are installed so as to be slidable in the vertical direction with respect to the main body frame 3, and are connected to the rolling down device 5 by a connecting frame 4. Thereby, the upper grooved roll R1 is controlled to be rolled downward at a predetermined rolling position on the main body frame 3.

On the other hand, the shaft box 2a on the left end side of the lower grooved roll R2 can be inserted and removed from the left end of the grooved roll R2 when the grooved roll R2 is at a predetermined rolling position.

That is, the axle box 2a is mounted on a truck 6, and this truck 6 moves along the rail 7 in the left-right direction (axis 0) in FIG.
When the carriage 6 is slid to the left by a slide mechanism (not shown), the axle box 2a moves away from the left end of the grooved roll R2, as indicated by the two-dot chain line in the figure. When it is removed and the trolley 6 is slid to the right, the axle box 2a fits into the left end of the grooved roll R2 and holds the right end thereof, as shown by the solid line in the same figure. .

Further, the axle box 2b on the right end side of the grooved roll R2 is movable to the right in FIG. 2 (towards the front of the paper in FIG. 1) together with the grooved roll R2.

That is, the axle box 2b is guided between the horizontal frames 8.8 extending from the main body frame 3 to the right in FIG. When it is slid to the right in the figure, the grooved roll R2 is released from the rolling position as shown by the two-dot chain line in the figure, and when it is slid to the left in the figure, as shown in the figure As shown by the solid line, the grooved roll R2 is held at the rolling position.

Next, the effect will be explained.

A pair of upper and lower grooved rolls r (1, R2 rotate while receiving the rolling blade from the rolling device 5 at a predetermined rolling position indicated by the solid line in FIGS. 1 and 2, and roll the ring material W. Rolling into a predetermined cross-sectional shape. At that time, grooved rolls R1, R
2, all of their ends are axle boxes 1a, lb, 2a, 2
Because they are held in place by b, and because they are not divided, they themselves are not easily bent and realize highly accurate rolling.

After rolling of the roll material W is completed, the roll material W is removed as follows. First, the axle box 2a is slid to the left in FIG. 1 together with the truck 6, and the axle box 2a is removed from the left end of the lower hole-shaped roll R2.

As a result, the grooved roll R2 is cantilevered only by the right end side. Thereafter, the slide mechanism 9 slides the shaft box 2b on the right end side together with the grooved roll R2 to the right in FIG. 2, and moves the grooved roll R2 away from the rolling position. Then, at the separated position, the grooved roll R
Remove the rolled ring material W from 2.

Thereafter, a new ring material W for rolling is set by performing the reverse operation. That is, after applying a new ring material W to the grooved roll R2 that has been moved away from the rolling position, the grooved roll R2 is returned to the rolling position, and the shaft box 2a is fitted to the left end of the grooved roll R2.

FIGS. 3 and 4 are diagrams for explaining a second embodiment of the present invention.

In this embodiment, a pair of grooved rolls R1 and R2 are installed vertically to the main body frame 3, and the axle boxes 1a, lb, 21.2b and the lowering device 5 are installed in the same manner as in the embodiment described above.
The ring material W is rolled between the grooved rolls R1 and R2. However, in the case of this embodiment, the axle box 2a of the groove roll R2 makes two movements, and the axle box 2b is fixed at a fixed position on the main body frame 3, and the axle box 2b allows the groove roll R2 to move in two directions. remains in the predetermined rolling position.

That is, the axle box 2a is fixed to the swing arm IO, and the swing arm IO is slidable along the vertical axis O and swingable about the axis 0. Therefore, the axle box 2a constitutes a swing axle box that slides and swings integrally with the swing arm 10.

In such a configuration, when removing the ring material W, the swing arm 10 is first slid upward along the axis 0 by a slide mechanism (not shown). As a result, the axle box 2a comes off the grooved roll R2, and the grooved roll R2 becomes cantilevered only by the lower end side.

Thereafter, the swing arm IO is swung around axis 0 by a swing mechanism (not shown). As a result, the axle box 2a is separated from above the grooved roll R2 as shown by the two-dot chain line in FIG. 4, and the ring material W can be removed. When setting the ring material W, conversely,
What is necessary is to swing the swing arm 10 to return the axle box 2a above the hole-shaped roll R2, and then slide the swing arm IO downward.

By the way, after separating the axle box 2a from the grooved roll R2,
As in the first embodiment described above, the grooved roll R2 is aligned with the axis 0.
Alternatively, as in the second embodiment described above, the axle box 2a may be further swung around the axis 02, that is, moved in a plane perpendicular to the axis 02. In short, any configuration is sufficient as long as the axle box 2a is removed and then the axle box 2a and the grooved roll R2 are moved relative to each other in a plane orthogonal to the axis 02 to separate them.

Moreover, it goes without saying that the ring material rolling apparatus of the present invention can be applied to a type equipped with a pair of grooved rolls R1 and R2 in either a vertical or horizontal direction.

[Effect] As explained above, the ring material rolling apparatus of the present invention supports all ends of a pair of slotted rolls, that is, each of the four ends in total, by an axle box, and sets the ring material. When removing or dispensing, remove the axle box at one end of one of the groove rolls, and then move the one groove roll and the axle box removed from the groove roll relatively to separate them. Therefore, while making it possible to set and remove the ring material, it is possible to suppress the occurrence of deflection of the grooved roll and realize highly accurate rolling.

[Brief explanation of the drawing]

1 and 2 are diagrams for explaining the first embodiment of the present invention, in which FIG. 1 is a partially cutaway front view, and FIG. 2 is a view in the direction of the ■ arrow in FIG. 1. be. 3 and 4 are diagrams for explaining a second embodiment of the present invention, in which FIG. 3 is a schematic front view, and FIG. 4 is a partially cutaway view of FIG. This is a perspective view. FIG. 5 and FIG. 6 are schematic configuration diagrams for explaining different conventional examples. R1, R2... Hole-shaped roll, la, l b, 2 a, 2 b... Axle box, 3... Body frame, 4... Connection frame, 5... Reduction device, 6...
...Truck, 7...Rail, 8...
Horizontal frame, 9...Slide mechanism, lO...Swing arm, W...Ring material. Applicant Ishikawajima Harima Heavy Industries Co., Ltd. Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] In a ring material rolling device that rolls a ring material between a pair of rotatable grooved rolls, one of the grooved rolls is mounted in a fixed position by an axle box supporting both ends of the ring material. , the other grooved roll is equipped with an axle box that supports both ends thereof so as to be movable in the direction of applying a rolling force to the ring material, and the axle box that supports both ends of the other grooved roll has an axle box that applies a rolling force to the ring material. A shaft box that supports one end of the one grooved roll is connected to a rolling device that applies the same amount of water, and is arranged so as to be insertable and removable from one end of the one grooved roll along the axial direction of the one grooved roll; The grooved roll and the axle box supporting the other end of the grooved roll are arranged so as to be integrally movable relative to each other, and the ring material can be inserted and removed when the roll is moved. Ring material rolling equipment.