JPS62130735A - Forging press device - Google Patents

Abstract

PURPOSE:To weld exactly a porosity by pressure, by providing a base block to which a press hardware has been attached, so as to be liftable and also movable in a slab advance direction, on a housing, so that a rolling work can be executed to a slab which is being moved, in the course of running. CONSTITUTION:Both base blocks 12, 17 are made adjacent by rotating the lower wheel shaft 2 and the upper wheel shaft 6, and also accelerated and moved in the advance direction of a slab 27 by cylinders 14, 24. When press hardwares 16, 26 abut on the slab 27, a rolling reduction is executed by a rolling reduction cylinder 8, and the base blocks 12, 17 are moved together with the slab 27 by the feed cylinders 14, 24. In this way, the rolling reduction of the slab is executed in the course of running without stopping the movement of the slab, and also, contact length of a metallic die and the slab, and the rolling reduction can be selected separately, respectively, therefore, a large rolling reduction is obtained and a porosity is welded exactly by pressure.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a forging press device that allows a slab to be rolled down between runs.

[Prior Art] Conventionally, as shown in FIG. 7, when thinning a slab a, a rolling method using a rolling mill equipped with work rolls b, b is known.

By the way, porosity (small holes) C is generally present in the slab a, and in recent years, it has become necessary to press the porosity C to improve quality.

When performing rolling work in the rolling mill, what actually contributes to rolling is the contact length of work roll b in contact with slab a! This is the area d. In order to compress the porosity C as shown in C', it is necessary to increase the depth of the deformation zone e generated in the slab a, and to do so, the contact length 1d must be set to a certain length or more. It is necessary to ensure that

[Problem to be solved by the invention] However, the contact length! d is the pressure ffi, dh (=h
, -h2) is determined, it is determined from zd=igo9-. Therefore, in the conventional rolling mill, the contact length 1d necessary for crimping the porosity C could not be secured in some cases.

So, contact chief! It is conceivable to reduce the slab with a forging press in which d can be arbitrarily selected, but in this case, it was not possible to work on the moving slab.

The present invention aims to provide a forging press device that can perform rolling work on a moving slab between runs.

[Means for Solving the Problems] The present invention provides a platform block to which a press metal fitting is attached, which is provided in a housing so as to be movable up and down and movable in the slab advancing direction.
The present invention is characterized in that a required rolling down device is used to apply a rolling force to the table block, and a feed cylinder is connected to the table block.

[Operation] Only the table block to which the press hardware is attached is moved toward and away from the slab and reciprocated along the advancing direction of the slab to perform intermittent pressing.

[Example] The present invention will be described in detail below with reference to the drawings.

An axle box 3 is rotatably provided at both ends of a pair of left and right lower wheel axles 2 which rotatably support an upper wheel 1 by an eccentric shaft part, and the axle box 3 is fixed to a housing 4. Further, one end of the wheel shaft 2 is made to protrude and is connected to a rotational drive device (not shown) via a universal joint 5. One set of upper wheels 1 supported in this manner are provided on the upstream side and one set on the downstream side.

Axle boxes 3' are provided at both ends of a pair of left and right upper wheel axles 6 which rotatably support an upper wheel 10 located above the upper wheel 1 by an eccentric shaft part. The axle box 3' is fitted into a window 1 provided in the upper part of the housing 4 so as to be slidable in the vertical direction, and a reduction cylinder 8 is provided between the axle box 3' and the housing 4. Further, one end of the upper wheel shaft 6 is projected and connected to a rotational drive device (not shown) via a universal joint 9. Furthermore, the upper wheel 6
Similar to the upper wheel 1, one set each is provided on the upstream side and the downstream side.

A lower block 1 is constructed by interposing a rail 11 to the upper wheel 1.
A rod 13 is provided on the side surface of the lower block 12 to protrude through the housing 4.
3 is connected to a feed cylinder 14 provided on the side surface of the housing. Further, a press metal fitting 16 is fixed to the upper surface of the lower block 12 via a seat 15.

A bracket 18 is protruded from the upper surface of the upper support block 11 disposed opposite to the lower support block 12, and the bracket 18 and the connecting link 19 are connected.

There are two balance cylinders 20.2 on the upper surface of the housing 4.
0 is attached by pivoting the connecting link 19 to the beam 21 which is connected by spanning the balance cylinders 20 and 20. The base block 17 is pulled up by the balance cylinder 20 so that the base block 17 is always in contact with the upper and middle wheels 10 via the rails 22. The foundation block 11
A rod 23 that protrudes through the housing 4 is provided on the side surface of the housing 4.
The rod 23 is connected to a feed cylinder 24 provided on the side surface of the housing. Further, a press metal fitting 26 is fixed to the lower surface of the upper block 17 so as to face the press metal fitting 16 via a seat 25.

In addition, 27 is a slab, and the slab 27 is the press hardware 1.
It is supported by guide rolls 28 and 29 provided on the upstream and downstream sides of 6.26, respectively.

In such a configuration, the operation when the moving slab 21 is rolled down will be explained.

The lower wheel axle 2 and the upper wheel axle 6 are each rotated by a rotary drive device (not shown), the wheels 1 and 10 are moved in the direction away from the slab 21, the press hardware 16.26 is moved away from the slab, and the feed cylinder 14.24 is moved. The lower stand block 12 and foundation block 11 are moved to the upstream side. By rotating the lower wheel axle 2 and the upper wheel axle 6, both blocks 1
2.17 and feed cylinder 14.24
The slab 27 is moved while being accelerated in the advancing direction. At the time when the press hardware 16.26 comes into contact with the slab 27, the moving speed of the press hardware 16.26 matches the advancing speed of the slab. Reduction is performed. The rolling down force by the rolling down cylinder 8 is maintained for the time required for rolling down, but during this rolling down, the table block 12.17 is moved together with the slab 21 by the feed cylinder 14.24. When the reduction is completed, both wheel axles 2.6 are rotated to move the upper wheels 1 and 10 in the direction of separation, and the feed cylinders 14 and 24 are decelerated, and when the stroke end is reached, it is reversed and both wheels are moved at a rapid speed. Pull back the platform block 12.17.

The locus of this series of press metal fittings 16.26 is shown in Figure 3, X and Y.
As shown in .

In the case of the forging press, the contact length for crimping the porosity C can be determined by selecting the reduction amount Ah shown in FIG. 7 and an appropriate tool! Since d can be selected separately, the porosity can be reliably compressed and the quality of the slab 27 can be improved. In addition, when the slab is rolled by a work roll, cooling tends to be insufficient because the slab is always in contact with the work roll, but in this embodiment, the press hardware 16. Since they are further separated from each other, sufficient cooling can be achieved even when used between runs.

Furthermore, since the movable parts are limited to the base blocks 12, 17 and their associated parts, the inertia force is small, a drive device with a small capacity can be used, and its control is easy.

FIGS. 4 and 5 show another embodiment, in which a table block 17 is rotatably attached to an eccentric reduction shaft 30 via a bearing block 31, and the table block 17 is moved closer to or away from it by rotation of the eccentric reduction shaft 30. At the same time, the intention was to also perform rolling down with this operation. Further, the feeding operation of the press hardware 26 is performed by swinging the table block 17 about the eccentric lowering shaft 30 by means of a feed cylinder 14 connected to the table block 17.

FIG. 6 shows still another embodiment, in which a slide block 32 is provided in the housing 4 so as to be slidable in the vertical direction, and a platform block 17 is swingably mounted on the slide block 32. The pressing operation is performed by applying a pressing force to the slide block 32 by a pressing cylinder (not particularly shown), and the press metal fittings 26 are fed by swinging the base block 17 by the feeding cylinder 14.

In each of the two embodiments shown in FIGS. 4, 5, and 6, the movable parts are only those related to the base block, and the inertial force is small, as in the previously described embodiments.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

[Effects of the Invention] As explained above, according to the forging press apparatus of the present invention, the rolling of the slab can be carried out between the runs without stopping the movement of the slab, and the contact between the die and the slab can be reduced. Since the length and the amount of reduction can be selected separately, a large amount of reduction can be obtained and porosity can be reliably crimped. Furthermore, since the movable parts are small, the inertia force is reduced, the weight of the bone structure can be reduced, the capacity of the drive mechanism is reduced, and control is facilitated. be able to.

[Brief explanation of drawings]

FIG. 1 is a front view of the first embodiment of the present invention, FIG. 2 is a front side view of the same, FIG. 3 is a view taken along arrow A-A in FIG. 1, and FIG.
5 is a front view of the embodiment, FIG. 6 is a front side view of the same, and FIG.
FIG. 7 is an explanatory diagram showing the state of slab rolling by a rolling mill. 8 is a reduction cylinder, 12 is a lower stand block, 14 is a feed cylinder, 16 is press hardware, 17 is an upper stand block, 24
26 is a feeding cylinder, 26 is a press hardware, and 27 is a slab. Patent application Human Ishikawajima Harima Heavy Industries Co., Ltd. Memorial 6

Claims (1)

[Claims] 1) A table block to which press metal fittings are attached is installed in the housing so that it can be raised and lowered and moved in the slab advancing direction, so that a rolling force can be applied to the table block by a necessary rolling device, and the table block is fed. A casting press device characterized by connected cylinders.