JPS6143827Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a steel billet transfer device, particularly a device suitable for use in transferring high temperature steel billets.

For example, when rolling billets and other steel billets produced in a continuous casting machine, conventionally, the billets were inspected after continuous casting for reasons such as product quality, rolling capacity balance, and convenience of the rolling process. Because of the need for maintenance and the need to absorb differences in rolling capacity, high-temperature steel slabs are transformed into hot or cold slabs before being transferred from a continuous casting mill to a rolling mill or between rolling mills. It was being handed over. In such a delivery, it is often not possible to directly connect these factories using a table or other means.
Generally, hot or cold pieces are transported to each factory using trailer trucks, carts, etc., and during this transportation, it is necessary to transfer the steel pieces to and from the factory. When the steel pieces are hot pieces or cold pieces, this transfer can be carried out relatively easily using a lifting magnet or other transfer means.

In contrast, in recent years, due to improvements in continuous casting and rolling technology, as well as improvements in process control technology,
As the difference in rolling capacity has narrowed, hot flaw detection and care techniques have developed, making it unnecessary to wait for time to absorb the difference in rolling capacity, and to inspect and care for billets in the subsequent process of continuous casting. On the other hand, due to increasing demands for streamlining, labor saving, and energy saving in manufacturing processes, it has become necessary to transport high-temperature steel billets after continuous casting using trailer trucks, carts, etc.

However, in this transfer of high-temperature (600° C. or higher) steel pieces, there is a problem in that conventional lifting magnets cannot be used because the temperature is particularly high.

This idea solves this problem,
A pole member hangs up and down from a traveling trolley that runs on rails, and a bell crank lever is pivotally supported at the lower end of the pole member. At the lower end of this bell crank lever, there is a hook claw that can be hooked onto and detached from a steel piece. A slider protruding from the lower end of the rod member further downward than the hook claw is slidable in the axial direction of the rod member, and the other end of the link member has one end pivoted to the upper end of the slider. By pivoting the hook to the upper end of the bell crank lever, the hook claw can be engaged with, for example, a piece of high-temperature steel by moving the traveling cart.
In addition, the steel pieces can be removed from the hook claw by rotating the bell crank lever around its fulcrum via the link member by pushing up the slider based on the lowering of the rod member at the desired position. To provide a transfer device that can be reliably and easily carried out without causing damage to the material.

This invention will be explained below based on the drawings.

Figure 1 is a side view showing an embodiment of this invention, Figure 2 is a side view showing an embodiment of this invention.
The figure is a plan view thereof.

In the figure, 1 is a pedestal with a gate-shaped side surface that is installed at the place where the steel pieces are transferred, 2 is a rail laid on the pedestal 1, and 3 is a running cart that moves guided by these rails 2. Each is shown below.

In this example, in order to enable the transfer of relatively long pieces of steel, as is clear from Fig. 2,
A pair of running bogies formed by interconnecting two running bogies 3, 3 with a connecting rod 4 are arranged on each side of the center line C of the frame 1, but this configuration depends on the length of the steel piece. Of course, it can be changed as appropriate.

Further, in the figure, numeral 5 indicates a transfer for transporting the high-temperature steel pieces to the middle part of the pedestal 1, and 6 indicates a loading pedestal as a transfer location for the high-temperature steel pieces carried by the transfer 5. Here, this loading frame 6 has a stopper 7 on the top surface of its end on the side away from the transfer 5 in order to prevent the steel pieces stacked thereon from collapsing and falling off.

Here, in the transfer device according to this invention,
As illustrated in an enlarged side view and a front view of main parts in FIGS. 3 and 4, respectively, a rod member 9 is suspended from a traveling cart 3 that moves on a rail 2 by wheels 8, and the rod member 9 is A hydraulic cylinder 10 mounted on the traveling trolley performs lifting and lowering operations for the traveling trolley 3.
and a bell crank lever 12 whose one end is connected to this hydraulic cylinder 10 and whose bent part is supported by a bearing 11 on a truck;
2 and a movable link 13 whose other end is pivotally supported at the upper end of the rod member 9.
The guide rollers 17 and 18 are guided by pairs of guide rollers 17 and 18 provided in the through hole 15 of the carriage 3 and in the lower bracket 16 thereof (see FIG. 5).

On the other hand, the bent portion of the bell crank lever 19 is pivotally supported at the lower end of the rod member 9, and the lower end of the bell crank lever 19 has a substantially wedge-shaped side surface that can be attached to and detached from the steel piece. A hook claw 20 is provided protrudingly. In addition, here, this bell crank lever 19
When no external force is applied, the portion below the bent portion extends in the vertical direction, similar to the rod member 9, and the upper surface of the hook claw 20 forms a horizontal surface.

Further, in this example, guide grooves 21 extending in the axial direction are provided on both outer surfaces of the lower ends of the two rod members 9 that form a pair (see FIG. 6), and a slider fitted in these guide grooves 21 is provided. 22 is projected further downward from the lower end of the rod member 9 than the hook claw 20 in its normal state. Therefore, the slider 22 is guided by the rod member 9, more precisely, its guide groove 21, and can rise in the axial direction of the rod member 9 based on the action of an external force on its lower end. Here, in order to determine the vertical limit position of the slider 22, a long hole 23 extending in the axial direction is provided in the rod member 9, and a shaft 24 passing through the long hole 23 connects the upper ends of the sliders 22, 22. The shaft 24 is brought into contact with the lower end of the elongated hole 23 under normal conditions.

Furthermore, a link member 2 is provided at the center of this shaft 24.
By pivoting the upper end of the link member 25 to the slider 22, the lower end of the link member 25 is pivoted to the upper end of the bell crank lever 19 to control the operation of the slider 22. so that it can be transmitted to the bell crank lever 19 via.

The operation of the device configured in this way is explained in the seventh to first steps.
This will be explained based on FIG.

First, as shown in FIG. The rod member 9 is lowered as shown in FIG. This lowering is carried out to the lower limit of the rod member 9 by the link mechanism 14, and at this lower limit position of the rod member 9, the upper surface of the hook pawl 20 is aligned with the upper surface of the transfer shaft 5.

Note that this lowering of the rod member 9 is performed at the interval in the width direction of the transfer mechanism, so no external force is applied to the slider 22 while it reaches the lower limit position, and therefore the upper surface of the hook claw 20 is always maintained horizontally up to its lower limit position.

Next, the upper surface of the hook claw 20 is exposed to the high temperature steel piece 26.
Move the carriage 3 and eventually the rod member 9 in the conveying direction of the transfer shaft 5 as shown by arrow A in FIG.
The rod member 9 and the hook claw 20 are raised together with the high-temperature steel piece 26.

Then, with the high-temperature steel piece 26 in this raised state, the traveling cart 3 is moved to a required position on the loading platform 6 shown in FIG. and lower it.

During this lowering operation, when the rod member 9 reaches the vicinity of its lower limit, the lower end of the slider 22 that protrudes further downward from the hook 20 is moved onto the loading frame 6 in advance, as shown in FIG. 10, for example. The slider 22 comes into contact with the upper surface of the high-temperature steel piece 27, and as the rod member 9 continues to descend, the slider 22
increases relative to For this reason, slider 2
The link member 25 connected to 2 also rises relative to the rod member 9, which exerts a tensile force on the bell crank lever 19. As a result, bell crank lever 1
9 rotates clockwise around its fulcrum as shown in FIG. 11, and the hook claw 20 protruding from its lower end is detached from the lower surface of the high-temperature steel piece 26.

Slider 2 in the vicinity of the lower limit of the rod member 9
2 and the bell crank lever 19, the high temperature steel piece 2 supported by the hook pawl 20
6 is accurately aligned with the other high-temperature steel piece 27, as shown in FIG. The next transfer of the high-temperature steel piece 26 by the claw 20 is continued.

Therefore, with this transfer device, a high-temperature steel piece for which a lifting magnet cannot be used can be reliably and easily transferred to a desired position without causing damage to the piece, with an extremely simple configuration. be able to.

Although this invention has been described above with reference to the illustrated example, it goes without saying that this invention can also be applied to low-temperature steel pieces. Further, the elevating means for the rod member, which is a link mechanism in the illustrated example, may be a cable or other known elevating means, and furthermore, the structure of the rod member may be changed in various ways as required.

According to this invention, the steel piece is supported by the hook pawl, and the steel piece is automatically released from the hook pawl based on the action of the slider, thereby providing no driving means for swinging the hook pawl. This makes it possible to reliably and easily transfer not only low-temperature steel pieces, but also high-temperature steel pieces for which lifting magnets cannot be used, without damaging them.

Moreover, here, the rotation mechanism of the hook pawl is composed of a mutually pivotally supported slider, a link member, and a bell crank lever, so that extremely smooth rotational movement of the hook pawl is always ensured. In addition, the durability of the entire mechanism can be sufficiently increased.

[Brief explanation of the drawing]

Figures 1 and 2 are a plan view and a side view showing an embodiment of this invention, Figures 3 and 4 are an enlarged side view and front view of the main parts of Figures 1 and 2, respectively, and Figure 5 is a view of Figure 3. - cross-sectional view along the line, Figure 6 is the 4th
7 to 12 are explanatory diagrams showing the operating state of the device according to this invention. 1... Frame, 2... Rail, 3... Traveling trolley,
4... Connecting rod, 5... Transfer, 6... Loading frame, 7... Stopper, 8... Wheel, 9... Rod member, 10... Hydraulic cylinder, 11... Bearing,
12, 19... Bell crank lever, 13... Swinging link, 14... Link mechanism, 15... Through hole, 16... Lower bracket, 17, 18... Roller, 20... Hook claw, 21... ...Guide groove, 2
2...slider, 23...long hole, 24...shaft,
25... Link member, 26, 27... High temperature steel piece.

Claims (1)

[Scope of utility model registration request] A traveling truck, a rod member suspended from the traveling truck and operated to move up and down with respect to the traveling truck, a bell crank lever pivotally supported at the lower end of the rod member, and a bell crank lever protruding from the lower end of the bell crank lever. , a hook claw that can be engaged with the lower surface of the steel piece at an interval in the width direction of the transfer mechanism, and a hook claw that protrudes further downward from the lower end of the rod member than the hook claw, and whose movement in the axial direction is guided by the rod member. A steel billet transfer device comprising: a slider; and a link member having one end pivoted to the upper end of the slider and the other end pivoted to the upper end of a bell crank lever.