JPS6113125Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an arm-shaped steel billet reversing device.

Heavy pieces of steel that have been rolled and transported on a belt conveyor are turned over mid-way for inspection and other purposes. What is used during this reversal is an arm-shaped billet reversing device.

This device has an arm for delivering a steel billet and an arm for receiving a billet, and is configured to transfer and reverse the billet between the two.

However, conventional equipment of this type has the disadvantage that the billets are extremely heavy and the billets are not transferred smoothly, which generates a lot of noise and worsens the working environment. It was hot.

The present invention was made in order to eliminate the above-mentioned drawbacks of the conventional method, and an object of the present invention is to provide an arm-shaped steel billet reversing device configured to be able to smoothly reverse a steel billet without producing noise. It is an object.

In order to achieve the above object, in the present invention, an arm for delivering a steel billet and an arm for receiving a billet, each having a corner portion for receiving a billet on the inside near the base, are installed at the conveyor section at the base of each arm. The position of the slide guide is set so as to be rotatable between a horizontal state and a nearly vertical state around a fixed rotation axis, and a slide guide is attached to the billet receiving arm in a direction perpendicular to the longitudinal direction of the billet receiving arm. A structure was adopted in which the slide guide was installed so that it could slide freely, and the drive device for sliding the slide guide was attached to the arm for receiving the steel billet.

The present invention will be explained in detail below with reference to an embodiment shown in the drawings.

FIG. 1 explains the arrangement of the device of the present invention, in which two rotating shafts 2,
3 is rotatably supported by several bearings 4, 4. One rotating shaft 2 is rotated by a motor 6 via a reducer 5, and the other rotating shaft 3 is rotated by a reducer 7.
It is rotated by the motor 8 via the .

One of the rotating shafts 2 is a rotating shaft that drives an arm for delivering a steel piece, and the lower end of an arm 9 for delivering a steel piece is fixed to this rotating shaft 2 at a predetermined interval.

The other rotating shaft 3 is a rotating shaft that drives a steel piece receiving arm, and the lower ends of steel piece receiving arms 10 are fixed to this rotating shaft 3 at predetermined intervals.
In addition, what is indicated by the reference numeral 11 in FIG. 1 is a steel piece.

The billet delivery arm 9 and billet receiving arm 10 have a structure as shown in an enlarged view in FIG. That is, the steel billet delivery arm 9 has the steel billet 11 on its upper surface side.
A steel piece 11 is fitted into the cutout 9a.

On the other hand, the billet receiving arm 10 has an arm 10a as shown in FIG. 3 on one end side and another arm 10b on the other end, and the arm 10a has a A slide guide 16 whose steel piece receiving surface is formed in a plane parallel to the longitudinal direction of the arm 10a of the arm 10 for receiving steel pieces can freely slide in a direction perpendicular to the longitudinal direction of the arm 10a in a covered state. installed on. Therefore, slide guide 1
A guide piece 1 extending straight in a direction perpendicular to the longitudinal direction of the arm 10a of the arm 10 for receiving the steel billet is provided at a portion in contact with the arm 10a at the tip of the center of the inner surface of the steel piece 6.
6a is attached. A trunnion-shaped cylinder 12 is fixed to the arm 10b. The tip of the rod 12a of the cylinder 12 is rotatably connected to one end of the lever 13. The lower ends of the same hook-shaped link levers 14 are rotatably connected to both ends of the lever 13, respectively.

The central bending part of the link levers 14, 14 is connected to the pin 1.
The upper end of the link lever 14 is rotatably supported on both sides of the slide guide 16 that holds the arm 10a between the levers 17.
are rotatably connected to each other.

Therefore, when the cylinder 12 is actuated, the link lever 14 is rotated via the lever 13, and the slide guide 16 can be raised and lowered in the state shown in FIG. 2.

In addition, the arm 9 for delivering the steel billet and the arm 10 for receiving the steel billet each have a corner portion for receiving the billet on the inside near the base by providing a cutout portion 9a etc. Become.

Next, the operation of this embodiment configured as above will be explained.

First, as shown in FIG.
When the piston rod 12a is pulled forward, the link levers 14 are rotated clockwise via the levers 13, and the slide guides 16 are raised, as shown in FIG. This amount of increase is indicated by the symbol L in FIG. This dimension L can be changed depending on the wall thickness of the steel piece 11. This operation may be performed while rotating the receiving arm 10.

Next, the billet receiving arm 10 is rotated counterclockwise in the figure via the rotating shaft 3 so that the arm 10a is in a nearly vertical position, and a little later than this, the billet 11 is placed. Slab delivery arm 9
is rotated clockwise in the figure via the rotating shaft 2 to bring it into a vertical position. This state is shown in FIG. In this state, the steel piece 11 is held between the steel piece delivery arm 9 and the slide guide 16.

At this time, since the thickness of the steel piece 11 may be larger than the distance between the delivery arm 9 and the slide guide 16, a relief valve is provided in the operating circuit of the cylinder 12 so that the slide guide 16 can escape.

It is also conceivable that the thickness of the steel piece 11 is thinner than the distance between the delivery arm 9 and the slide guide 16, but in such a case, the hydraulic cylinder 12 is further actuated to advance the slide guide 16 and the steel piece 12 is moved forward. to hold it in place.

Next, as shown in FIG. 6, both arms 9 and 10 are rotated clockwise by a slight angle θ while holding the steel piece 11, and the steel piece 11 is completely transferred to the receiving arm 10 side. .

After the steel piece 11 has completely moved onto the receiving arm 10 side, the steel piece delivery arm 9 is reversed and returned to its original state. During this time, the billet receiving arm 10 is rotated from the state shown in FIG. 6 to the original state shown in FIG. Then, when the arm 10a becomes horizontal, the receiving arm 10 is stopped. In this state, the slide guide 16 has risen by an amount L from the arm 10a of the arm 10, and the steel piece 11 is above the belt conveyor 1.

Therefore, by operating the hydraulic cylinder 12 and moving the piston rod 12 forward, the link lever 14
is rotated clockwise in the figure, the slide guide 16 is lowered, and the steel piece 11 is transferred onto the belt conveyor 1. This state is shown in FIG. Steel piece 11
is carried to the next process by the belt conveyor 1.

In addition, in order to shorten the reversal time cycle, the cylinder 12 is operated while the receiving arm 10 is returning, the slide guide 16 is lowered, and the steel billet 11 is transferred onto the belt conveyor 1 at the same time as the receiving arm 10 returns. It may be configured so that it is loaded.

As is clear from the above explanation, according to the present invention,
A slide guide that is raised and lowered by a cylinder is provided on the billet receiving arm side, and the billet is held between this slide guide and the billet delivery arm to perform the reversing operation, so the billet can be reliably and smoothly reversed. At the same time, since it is turned over while being securely clamped, no noise is generated when it is turned over.

In addition, in the present invention, the slide guide is provided on the arm for receiving the steel pieces on the side that receives the steel pieces, so when lifting the slide guide, it is lifted in an empty state with no steel pieces placed on it, and vice versa. When lowering the guide, it can be lowered after receiving the billet. Therefore, an extremely small force is required to slide the slide guide. Furthermore, the cylinders and levers forming the slide guide driving device are also relatively small, making the device compact, compact, and easy to operate.

Furthermore, in the present invention, an arm for delivering a steel billet and an arm for receiving a billet, each having a corner portion for receiving a billet on the inside near the base, are arranged around a rotation axis whose base portion is at a constant position. A driving device was attached to the arm for receiving billet, so that the slide, which was attached to the arm for receiving billet, was attached to the arm for receiving billet. The delivery arm and the billet receiving arm can be rotated separately, and each arm can be held at the same time from opposite horizontal positions to an almost vertical position in the center while approaching each other from both sides. Once the billet is rotated, the delivery of the steel piece is completed, and the vertical position in the middle of rotation can be returned to the original horizontal position without rotating to the horizontal position in the opposite direction. Of course, once the billet receiving arm receives the billet and begins to rotate toward its original horizontal position, the billet receiving arm that has finished delivering the billet returns to its original horizontal position in its empty state. This allows the next billet to be put into the billet delivery arm earlier, and conversely, when the next billet is being put into the billet delivery arm, one The steel billets that have been turned over can be carried out from the receiving arm onto the conveyor, and the time required for turning over the steel billets can be reduced to about half, which is considerably short. Therefore, work efficiency is good and driving power is relatively small.

In addition, in this invention, the slide guide can be lifted straight from the billet receiving arm with one action of the cylinder, and in this state, the billet receiving arm can be rotated upward, so that the billet receiving arm can be easily transferred. When transferring a steel billet from the arm to the slide guide section on the billet receiving arm, the entire surface of the slide guide comes into contact with the entire surface of the billet evenly at once, so the operation is quick and smooth, and there is no scratching sound. does not occur either.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a plan view, Fig. 2 is a side view, Fig. 3 is a sectional view taken along the line - - of Fig. 2, and Figs. 4 to 8 are reverse views. It is a side view explaining operation. 1... Belt conveyor, 2, 3... Rotating shaft, 9
...Billage delivery arm, 10...Billette receiving arm, 11...Steel billet, 12...Cylinder, 13,1
7... Lever, 14... Link lever, 16...
slide guide.

Claims (1)

[Scope of utility model registration request] An arm for delivering a billet and an arm for receiving a billet, each having a corner portion for receiving a billet on the inside near the base, are placed in a horizontal state around a rotation axis at a constant position at the base of the conveyor section. A slide that is rotatably opposed to each other in a substantially vertical state and has a billet receiving surface parallel to the longitudinal direction of the billet receiving arm on the billet receiving portion of the billet receiving arm. A guide is provided so as to be slidable in a direction perpendicular to the longitudinal direction of the arm for receiving billets through a guide piece that is provided straight in a direction perpendicular to the longitudinal direction of the arm for receiving billets. An arm-shaped billet reversing device characterized in that a guide sliding drive device is attached to a billet receiving arm.