JPS5913511A - Transferring device and transferring and bundling device of billet - Google Patents

Abstract

PURPOSE:To transfer plural hot billets to a fixed bed by pressing down and clamping them, by installing two press-clamping arms, which turn opposingly to each other through a bracket, to the lower surface of a beam moving vertically and horizontally, and installing fixed press-holding arms facing downward, between the two press-clamping arms. CONSTITUTION:Two rolled hot-billets 21 are paired and fed onto a transfer 22 at prescribed intervals, and are stopped when they reach a prescribed positions. On the other hand, a transfering device 10 is lowered by a overhead crane to its terminal position, where the bottom ends of press-clamping arms 3, 3 are oppositely located at the lower ends of respective side surfaces of the billets 21, and fixed press-holding arms 8, 8 are located on the upper surface of the billets 21. Next, the two billets 21 are simultaneously clamped by the clamping parts of the arms 3, 3 by actuating a double-acting double cylinder 6. Then the billets 21 are lifted, together the device 10, by the crane, and are transferred to a fixed bed 12 by moving them horizontally. Further, the billets 21, 23 transferred onto the bed 12 are wadded to the side of a stopper 13 by a pusher head 16.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a steel billet transfer device and a transfer/barrel device, for example, for transferring a plurality of high temperature steel billets at the same time, and for transferring high temperature steel billets on a fixed frame. It relates to a device suitable for use in bringing pieces together.

For example, when rolling billets and other steel billets manufactured in a continuous casting machine, conventionally, the steel billets were inspected after continuous casting due to product quality, rolling capacity balance, convenience in the rolling process, etc. Because of the need for maintenance and the need to absorb differences in rolling capacity, high-temperature steel slabs were transformed into hot or cold slabs before being received from a continuous casting mill to a rolling mill or between rolling mills. was passing. In this case, since it is often not possible to directly connect these factories with a table or other means, it is common to transport hot or cold pieces to each factory using a trailer truck, platform, etc. Therefore, during this transportation, it is necessary to transfer the steel pieces to and from there. When the steel pieces are hot pieces or cold pieces, this transfer can be carried out relatively easily using a refmag or other transfer means.

However, in recent years, due to improvements in continuous casting and rolling technology, improvements in process control technology, etc., the difference in rolling capacity has narrowed, and hot flaw detection and care technology has developed.
There was no longer a need to wait for time to absorb differences in rolling capacity, and there was no need to inspect or care for the billets in the post-continuous casting process.On the other hand, demands for streamlining, labor-saving, and energy-saving manufacturing processes were increasing. For this reason, it has become necessary to efficiently transport high-temperature steel billets after continuous casting by trailer trucks, trolleys, etc. while minimizing heat loss of the steel billets.

However, in this transfer of high-temperature (over 600°C) steel pieces, it is not only impossible to use a conventional riffmag, but also tentatively possible, due to the particularly high temperature. Even so, when the steel pieces were transferred one by one using a riffmag, there was a problem that the heat loss of the steel pieces at that time was large and the work efficiency was low.

The present invention solves the problems of the prior art and also provides a transfer and transfer/tabular device that can fully satisfy the recent demands for conveyance. Protrude the bracket,
The intermediate portions of the two pressing arms are pivotally supported on this bracket so that they face each other, and driving means for causing simultaneous rotational movement of the pressing arms is connected to the upper ends of these pressing arms. By installing a fixed presser arm that protrudes downward to the vicinity of the lower end between the presser arms, it is possible to reliably transfer, for example, multiple pieces of high-temperature steel at the same time without damaging them. A fixed frame is provided inside, a stopper is provided at one end of the fixed frame, a hydraulic cylinder is provided at the other end, and the stopper side K of this hydraulic cylinder is provided.
By connecting a pusher head to the end of the rod, the pusher head can unite multiple high-temperature steel pieces transferred onto a fixed frame and effectively prevent heat loss from each piece of steel. It is something.

The present invention will be explained below based on the drawings. Fig. 1 is a side view showing an embodiment of the present invention.

In the figure, 1 indicates a beam, and this beam 1 is supported, for example, by an overhead crane via wires, chains, etc.
Operated both vertically and horizontally. Here, brackets 2.2 which are spaced apart in the width direction of the beam 1 are provided projecting from the lower surface of the beam 1, and the intermediate portions of the pressing arms 8, 8 are attached to each of these brackets 2.2 so that they face each other. Pivotally supported by shafts 4, 4.

Furthermore, as is clear from FIGS. 1 and 2, a bracket 5 is provided on the lower surface of the beam 1 at the center in the width direction, and a double-acting double cylinder 0 is attached to the bracket 5 as an example of a driving means. Both rods 7 are pivotally supported on the upper ends of the pusher arms 3 and 8.

Note that, although this example shows a case where each pair of pressing arms 8.8 is provided with a -47) double-acting double cylinder 6, if it is necessary to clamp multiple pairs of pressing arms 3.3 at the same time, each pair of pressing arms 8. In order to facilitate the synchronization of the pair of pressing arms 8.8, for example, as shown in FIG.
A bracket) 5a is provided at the center in the width direction and height direction, and each rod of the reciprocating double cylinder 6a attached thereto is connected to each pressing arm 8゜3 via an intermediate shaft. can.

In addition, 8 and 8 in FIG. 1 are brackets between the pressing arms 3 and 8)2. The fixed presser arms 8.8 project from the brackets 2, 2, and the brackets 8a, 8a protrude diagonally downward and toward each other from the brackets 2, 2. bracket) 8a, 8a
It consists of rollers 8b and 8b attached to the tips of the pressing arms 8 and 8, and acts to effectively prevent the billet from rising when the pressing arms 8, 8 operate to clamp the billet, which will be described later. moreover,
In the figure, 9 indicates a hook that is connected to an overhead crane and lowers the beam 1 by IB.

In addition to the steel billet transfer device 10 configured as described above, FIG. 1 also shows a tab spring device 11 provided in the movement path of the billet transfer device 10. A fixed and redundant pedestal 12 is provided at one end, and a stopper 13 consisting of an upright wall is provided at one end of the upper surface of the fixed mount, and a double-acting double cylinder 14 is provided at the other end, facing the stopper side of the hydraulic cylinder 14. At the end of the rod 15,
Lower surface b' Cal fixed mount A pusher head 16 located near the surface of the mount is connected.

Here, the hydraulic cylinder 14 is attached via a bracket 18 to an extension 17 connected to the fixed frame 12 on the opposite side of the stopper 18, and the pusher head 16 is mounted on the fixed frame for smooth operation. It has wheels 20 at its lower end that roll on rails 19 laid above.

The operation of the apparatus constructed in this manner will be explained below.For example, two rolled hot steel pieces 21 are fed from a table (not shown) onto the transfer 22, forming a pair, with a predetermined spacing between each pair. (See Figures 8 and 4).

Here, the two steel slabs 21 are made into a pair because in order to reduce heat loss from the steel slab z1, the heat dissipation area of each steel slab 21 is reduced by bringing a plurality of steel slabs z1 into surface contact. While this is preferable, due to unevenness, bending, etc. on the surface of each steel piece, clamping and transferring three or more steel pieces 21 at the same time involves the risk of them falling off. Further, the reason why a predetermined interval is provided between each pair of steel slabs z1 is that each pair of steel slabs ZI
This is because it is necessary to secure a rotation space for the clamping action of the pressing arm 8.8 on the IC.

The steel pieces z1 on the transfer 22 are stopped when they reach a predetermined position, and the transfer device 10 is then lowered to the stopped position by operation of the overhead crane as shown in FIG. This lowering is performed with the lower ends of the pressing arms 3, 8 open, and at the limit position, each arm 8.
In other words, the two clamp portions are located opposite the lower ends of each side surface of the pair of steel pieces z1, and the fixed leg arms 8, 8 are located near the upper surface of the steel piece 21.

In order to transfer these steel pieces z1 to the fixed frame 1z, first, the double-acting double cylinder 6 is activated and the two steel pieces z1 are simultaneously clamped by the clamping parts of the pressing arms B and 8 (see Fig. reference).

This clamp advances both its long door and 7 by the operation of a double-acting double cylinder 6, and presses the pressing arm 8,
3 around the shafts 4, 4 in a direction in which their upper ends are separated from each other, that is, in a direction in which the lower clamp parts of the shafts 4, 4 approach each other, each clamp part is This is done by simultaneously clamping each side of the steel piece z1.

During the clamping operation and the continuation of the clamping state of the pressing arms 8, 8, if the contact surfaces of the adjacent steel pieces z1 are not sufficiently flat, each steel piece 21
However, in reality, this rotation is effectively prevented by the fixed leg arms 8, 8, which prevents clamp damage and the steel piece z1 during clamping. Inconveniences such as falling off are sufficiently eliminated.

In addition, here, in order to provide a reliable ramp of the steel piece 21 and maintain the clamping condition of the bracket, the steel piece 21 is
As is clear from the explanatory diagram shown in Fig. 5, the required force P to be applied horizontally to the side surface of The applied force P' is p/ = p
x 4/l.

becomes.

Here, P: Horizontal pressing force (M), u: Friction coefficient between steel slabs, W': Value obtained by dividing the steel slab weight (W) by the number of pressing arms (u), P': Pressure acting on the rod. pressure.

tl: Distance from the upper end of the pressing arm to the fulcrum.

t2: distance from the lower end of the pressing arm to the fulcrum,
It is preferable to determine p and p' so that f always points upward in the figure.

Next, from the state shown in FIG. 4 after the clamping is completed, the overhead crane is operated again to raise the steel piece 21 together with the transfer mount [10] to the required height, and horizontally move it to just above the required position of the fixed frame 12. Lo down there. FIG. 1 shows the state in which this 16 is lowered in relation to another steel piece 28 that has been previously transferred onto the fixed frame 12. This is done in order to secure the operating space for the pressing arm 3. Two tiers of strips 21 are stacked on steel strips 23 that have been previously transferred onto a pedestal at a predetermined interval.

Note that stacking the steel slabs 21 and 2B in two tiers in this way reduces the heat dissipation area of each steel slab 21, 23 to effectively prevent heat loss, and also makes subsequent transportation by trailer trucks and other devices more efficient. This is for the purpose of doing so.

Furthermore, in order to release the steel billet 21 from the transfer device 10 at the desired lifting position, the double-acting double cylinder 6 is activated later than described above to retract its rod 7.7. As a result, the pressing arms F3 and F8 rotate in the direction in which their lower ends move away from each other.
, 8 is released, and the simultaneous transfer of the two steel pieces z1 is completed.

Here, in order to perform the next transfer, the transfer device 10 is again moved in an upward posture to a predetermined position of the transfer z2 by the ceiling crane.

On the other hand, the steel pieces 21°28 transferred onto the fixed frame 12 are
In order to minimize the heat loss during transport from there to a trailer truck, trolley, etc., and to facilitate transportation there, the sixth bushing head 16 moves forward based on the operation of the hydraulic cylinder 14. As shown in the figure, the fixed frame 12 is bent into one piece on the stopper side.

After the end of this spring operation, the pusher head 16 returns to its original position and waits for the next operation.

Further, the plurality of steel pieces 21.degree. 2B, which have been sprung together, are all transported simultaneously to the ton-rad rack and truck 1 by a C-shaped hook 24 shown in phantom lines in FIG.

Therefore, according to the above-mentioned apparatus, it is possible to simultaneously and efficiently transfer a plurality of high-temperature steel pieces for which it is not possible to use a riffmag onto the fixed frame with less M loss. Furthermore, heat loss on the fixed frame can be sufficiently reduced.

The above description has been made of the case where the device of the present invention is used to transfer high-temperature steel billets and bundle them, but it can also be used to similarly transfer low-temperature steel billets.
Of course you can get the tabane6.

Further, the drive means of the transfer device and the pusher head drive means of the spring device, which are both cylinders in the illustrated example, may be screws, gears, or other known reciprocating drive means.

Therefore, according to the present invention, a steel billet can be efficiently transferred and transported to a trailer truck, trolley, etc. regardless of whether it is at a high temperature 1.1. In this case, the transfer, which is impossible with a riffmag, can be carried out reliably and easily with little heat loss, and furthermore, the heat loss on the fixed frame can be extremely reduced.

[Brief explanation of the drawing]

Fig. 1 is a side view 1 showing an embodiment of the present invention, Fig. 5 is a front view partially showing a modification of the driving means, Figs. The figure is an explanatory view showing how to determine the clamping force, and FIG. 6 is a side view showing the operating state of the spring device. 1... Beam Z, 5, 5a, 8a, 18... Bracket, 8...
Pressing arm, 4...axis, 6.6a°...double acting double cylinder, ? , 15-...
Rod, 8, 8...Fixed presser arm, 8b...Roller, 9...Hook, 10...Transfer device, 11...
Spring attachment, 12...Fixed frame, 18...Stopper, 14...Hydraulic cylinder, 16...Fusher head, 19...Rail, 20...Wheel, 21.2
8...Steel piece, 22...Transfer, 24...C
qJ hook. No.? ,Figure 4

Claims (1)

[Scope of Claims] L: A beam that can be moved up and down and horizontally, two pressing arms that are opposed to each other and whose intermediate parts are pivotally supported on a bracket protruding from the lower surface of this beam, and the upper ends of these pressing arms. A steel billet transfer device comprising: a driving means connected to a portion of the pressing arm for controlling simultaneous rotation of both pressing arms; and a fixed holding arm attached between both pressing arms and projecting downward. A beam that can be moved up and down and horizontally, two pressing arms that are opposed to each other and whose intermediate parts are pivotally supported on a bracket protruding from the lower surface of this beam, and two pressing arms that are connected to the upper ends of these pressing arms and that are a transfer device including a driving means for simultaneously rotating the pressing arms, a fixed presser arm attached between both the pressing arms and protruding downward; a fixed pedestal provided in a passage of the transfer device; A spring device including a stopper provided at one end of the fixed pedestal, a hydraulic cylinder attached to the other end of the fixed pedestal, and a pusher head connected to the rond end of the hydraulic cylinder facing the stopper side. A billet transfer/clinging device comprising: