JPS6233198B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a transfer device for stacked hot steel billets, and in particular,
The present invention relates to a transfer device suitable for transferring square timbers such as BL-CC materials.

When the hot steel billets are transported relatively close to each other, they are transported directly by a roller table or conveyor, but if the distance is long, they are transported on a trailer or freight car. transported. In this case, a transfer device is required that loads and unloads hot steel pieces from a trailer or freight car and transfers the hot steel pieces to a conveyance device such as a conveyor or walking beam on the receiving side of the hot steel pieces.

On the other hand, when the steel billets arrive loaded on a trailer or freight car, etc., they are transported in bloom or billet form, either by stacking them in close stacks as shown in Figures 1 and 2, or by stacking them in third rows. As shown in the figure and FIG. 1 is a hot steel piece, 2
3 is a truck for a trailer or freight car, and 3 is a heat insulation cover.

The close-contact stacking shown in FIGS. 1 and 2 has the advantage of high loading efficiency and good transportation efficiency, as well as good heat retention efficiency because each steel piece is in close contact with each other.

On the other hand, the method using the manbo 4 shown in FIGS. 3 and 4 has the disadvantage that transportation efficiency and heat retention efficiency are poor, and since the manbo 4 is required, loading and unloading operations are complicated.

However, in the case of the method using Mambo 4,
Transfer of the hot steel piece to the receiving side can be carried out using a claw crane 5, as shown in FIG. 5, and the operation is easy and reliable. On the other hand, in the case of close stacking, it is necessary to use a lifting magnet 6 as shown in FIG.

When using the lifting magnet 6, the temperature of the target steel slab is currently limited to a surface temperature of 600 to 630°C, and the temperature of the steel slab is determined by the specifications of this lifting magnet. There are drawbacks. This is because when the temperature of the steel billet exceeds 600°C, the magnetic permeability drops rapidly, and when considering the safety factor rather than the risk of falling, the limit is 600 to 630°C. For this reason, a method of using slap tongs could be considered, but there is a great danger of falling pieces of steel and it is considered to be impractical.

The present invention was made in view of the above-mentioned drawbacks of the prior art, and it is possible to easily and reliably transfer hot steel billets stacked in close stacks with good loading efficiency, transportation efficiency, and heat retention efficiency to the receiving side of hot steel billets. The object is to provide a transfer device that can be transferred to a transfer device.

An embodiment of the present invention will be described below with reference to FIGS. 7 and 8.

In the figure, 10 is a C-shaped hook, 11 is a turning assist protrusion, 12 is a moving device, and 13 is a locking device.

The C-shaped hook 10 includes a pair of C-shaped hook pieces 10a, 10 arranged in parallel as shown in FIG.
a and a connecting member 10b that connects the hook pieces 10a, 10a at the center of their upper ends. Locking tools 101, 10 are provided at both ends of the connecting member 10b.
1 is provided, and a moving device 12 such as a crane is provided.
The hook 120 is designed to be hung here. Further, safety rods 102, 102 for preventing hot steel pieces from falling are provided at the upper ends of each hook piece 10a, 10a so as to be movable up and down. Furthermore, hook pieces 10a, 10
On the vertical part of a is a slide plate 10 for handling hot steel strips.
3,103 is attached so that it can move forward and backward. By moving the slide plates 103 and 103 in and out, variations in the width of the hot steel piece 1 can be accommodated.

The rotation assisting protrusion 11 is attached to each hook piece 10a, 1
It is provided at the lower end of the holder 0a, has a hook shape in this embodiment, and can be easily locked with the locking device 13.

Such a C-shaped hook 10 is rotatably suspended and moved by a moving device 12 such as a crane. In this embodiment, the hook 120 is
The C-shaped hook 10 is rotatably suspended.

The locking device 13 is provided on the conveying device 20 side and is used to lock the protrusion 11 and cause the C-shaped hook 10 to fall sideways. This locking device 13
consists of a round rod body shaped to engage with the protruding piece 11, and when the protruding piece 11 is engaged with this and the C-shaped hook 10 lies right sideways, its vertical portion is located below the conveying surface of the conveying device 20. It is installed at such a position (below the transport surface of the transport device 20). This locking device 13
is rotatable, and is configured so that it can be easily released from the protrusion 11 after the C-shaped hook 10 falls.

In FIG. 7, a turner 21 is installed at the end of the chain conveyor as the conveying device 20. Further, 22 is a table.

Next, the operation will be explained with reference to FIG. Note that in FIG. 9, some parts of the apparatus are omitted to make the operation easier to understand.

First, the amount of extension of the slide plate 103 is adjusted depending on the width of the hot steel piece 1 to be transferred. That is, if the width is large, the slide plate 103 is retracted, and if it is small, it is made to protrude. When the hot steel slabs 1 stacked on the trolley 2 arrive, the C-shaped hook 10 is moved by the moving device 12, and its lower end is inserted under the hot steel slab 1 and lifted up.
As a result, hot steel pieces 1 are taken out in one vertical row. Next, as shown in FIG. 9c, the safety rod 102 is lowered to securely hold the hot steel piece, and the moving device 12 is driven to move the C-shaped hook 10 to the conveying device 20, which is used to assist in turning. The protruding piece 11 is hooked onto the locking device 13. Then, when the C-shaped hook 10 is gradually lowered and moved laterally in the direction in which the hook 10 turns, the hook 10 turns around the locking device 13 and lies right sideways. This state is shown in d and e in FIG. 9. Next, the locking device 13 is rotated and the turning assist protrusion 11 is
When the C-shaped hook 10 is released from the lock, the C-shaped hook 10 swings under its own weight and becomes vertical again, leaving the hot steel piece 1 on the conveying device 20. This is the state shown in FIG. 9f. Next, the C-shaped hook 10 is lifted and moved to the trolley 2 side, the next row of hot steel slabs is taken, and the same operation is repeated again.

Note that the hot steel piece 1 transferred onto the conveying device 20 is transferred to the final end of the device 20 and transferred onto a table 22 by a turner 21.

In addition, although the above description has been given of the case where hot steel slabs 1 are stacked closely in multiple stages, the present invention is also applicable to cases where each row is stacked at intervals, or where multiple stages are stacked in a single row.

As explained above, according to the transfer device of the present invention, it becomes possible to easily and reliably transfer hot steel pieces stacked in multiple stages to a transfer device such as a roller table.

[Brief explanation of the drawing]

Figures 1 and 2, Figures 3 and 4 are explanatory diagrams of hot steel billet loading, Figures 5 and 6 are explanatory diagrams of a conventional transfer device, and Figure 7 is a transfer device according to the present invention. FIG. 8 is a front view of the C-shaped hook, and FIG. 9 is an explanatory diagram of the operation. In the figure, 10 is a C-shaped hook, 11 is a turning assist protrusion, 12 is a moving device, and 13 is a locking device.

Claims (1)

[Claims] 1. In a stacked hot steel billet transfer device that loads and unloads stacked hot steel billets and transfers them to a conveyance device such as a conveyor or walking beam, the hot steel billets are held in a single vertical row. A C-shaped hook, a turning-assisting protrusion provided at the lower end of the C-shaped hook, a moving device for suspending and moving the C-shaped hook in a rotatable and up/down manner, and pulling the turning-assisting protrusion. It is installed below the conveyance surface of the conveyance device so that when the hook falls sideways, the vertical part of the hook is below the conveyance surface of the conveyance device; A transfer device for stacked heated steel pieces, comprising a locking device that can release the locking with the turning assist protrusion after falling.