JPS633695Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a material transfer device in, for example, rolling equipment or continuous casting equipment.

Conventionally, as equipment for transferring high-temperature bars while cooling them in rolling equipment, for example, as shown in FIG. a fixed rake 1 having a groove and a movable rake 20 having grooves 15, 16;
By arranging an appropriate number of rods in parallel and moving the movable rake 20 so that each part similarly draws a circular locus 21 in a vertical plane, a prismatic bar 22a is formed.
A rotating cooling bed has been proposed in which the cooling bed (the double-dashed line in the figure shows the state when moving and the solid line shows the state when stationary; the same applies hereinafter) is transferred by sequentially transferring it to adjacent grooves while rotating.

This rotating cooling bed is intended to uniformly cool the bar 22a by rotating it, and to prevent the bar 22a from being bent during cooling. and,
FIG. 1 shows an example in which a bar 22a having a side length A moves from a groove 12 to an adjacent groove 13 while rotating without slipping between it and the fixed rake 1.

Next, a case will be considered in which only the cross-sectional dimension of the bar 22a is changed without changing the operation of the movable rake 20 in this rotating cooling bed.

For example, as shown in FIG. 2, a bar 22b having a smaller cross section than the bar 22a and having a side length of B (B<A)
When examining the movement of the bar 22b, the point 23 where the bar 22b first contacts the surface of the groove 13 when moving from the groove 12 to the groove 13 is the same as in the case of the bar 22a. Then, it transfers onto the surface of the groove 13 while rotating around this point 23. Since the side of the bar 22b is shorter than the side of the bar 22a, at this time the bar 22b has a distance Z (=
A-B) from the lowest point 25 of the groove 13.

For this reason, the bar 22b slides on the surface of the groove 13 until it reaches the lowest point 25, causing problems such as scratches and dents on the surface of the bar 22b, as well as large noise. There is.

The present invention was made in view of the above-mentioned conventional problems, and by fixing at least one of the fixed rake and the movable rake on a lifting device and making the height adjustable, the bar can be moved onto the fixed rake. The object of the present invention is to provide a material transfer device that can prevent a bar from slipping when transferred.

Next, the present invention will be explained with reference to the drawings which are one embodiment.

FIG. 3 shows the lower support structure of the fixed rake of the rotating cooling bed, which is an example of the material transfer device according to the present invention, and the other parts are substantially the same as the rotating cooling bed shown in FIG. Duplicate explanations of the parts will be omitted by referring to FIG.

In FIG. 3, reference numeral 1 denotes a fixed rake, and a first wedge 2 whose lower surface is an inclined plane is fixed to the lower part of the fixed rake 1, while two vertical plates 4 are mounted on a fixed table 3.
A guide 5 is provided which faces each other at an interval equal to the width of the first wedge 2. The first wedge 2 is slidably fitted into the guide 5 to support the fixed rake 1 so as to be movable up and down.

Moreover, between the first wedge 2 and the fixed base 3,
A second wedge 6 whose upper surface is an inclined plane with the same inclination as the lower surface of the first wedge 2 is slidably interposed,
By moving this second wedge 6 back and forth from side to side, the fixed rake 1 is raised and lowered.

That is, a recess 7 and a through hole 8 are formed in the second wedge 6 so as to perpendicularly intersect with the recess 7, and a female screw member 9 is fitted into the recess 7 to hold it so as not to rotate. A male threaded member 10 is loosely fitted therein and is screwed together with a female threaded member 9.

Furthermore, this male threaded member 10 is supported by the vertical plates 4, 4 via the bearing member 11, and the vertical plates 4, 4
Penetrate it and extend it to one side (right side in the figure).
A bevel gear 12 is attached to its tip. This bevel gear 12 meshes with a bevel gear 14 attached to the shaft of a motor 13 installed on the fixed base 3, and transmits the rotation of the motor 13 to the male threaded member 10, and transmits the rotation of the motor 13 to the second wedge via the female threaded member 9. It is designed to advance and retreat 6.

Next, a method of operating the rotating cooling bed having the above configuration will be explained.

As mentioned above, FIG. 1 shows that the bar 22a rotates without slipping between the fixed rake 1 and the groove 1.
The center O of the circular locus 21 is located below the reference line L set on the fixed rake 1. Then, the distance between the center O and the reference line L at this time is defined as _l1 .

In this case, the only material that can turn without slipping is the bar 22.
Only a.

Therefore, when the cross-sectional dimensions of the bar material change, the height of the fixed rake 1 relative to the movable rake 20 is adjusted by moving the second wedge 6 back and forth, thereby changing the height of the circular locus 21 relative to the fixed rake 1. . As a result, the position of the intersection between the circular locus 21 and the surface of the groove 13 in FIG. 1, that is, the point 23 where the bar first contacts the surface of the groove 13, changes,
and the lowest point 25 can be matched to the length of the side of the bar.

For example _, in the case of the bar 22b, as shown in FIG. The material 22b can turn without slipping between it and the fixed rake 1.

Similarly, if the height of fixed rake 1 is adjusted so that the center O is located at the same height as the reference line L, then
As shown in Fig. 5, a bar 22c with a side length of C
becomes.

In each of the above cases, the bar 22 with side length A, B, or C that does not cause slippage
a, 22b, and 22c, and in the case of bars of other dimensions, the distance between the center O and the reference line L may be appropriately determined in the same manner as described above.

In the above embodiment, the fixed rake 1 is raised and lowered by moving the second wedge relative to the first wedge 2, but the present invention is not limited to this, and other methods such as A worm jack 28 may also be used as shown in FIG.

That is, the worm jack 28 attaches the worm wheel 29, which has a female thread formed on the inner circumferential surface, to the case 3.
A worm gear 3 is supported horizontally rotatably in the worm wheel 29 and is attached to a drive shaft 31 in the worm wheel 29.
2 are screwed together, and a screw shaft 33 having a male threaded portion is screwed into the female thread to be movable up and down. By fixing the case 30 to the fixed base 3 and the screw shaft 33 to the fixed rake 1, the height of the fixed rake 1 can be adjusted. Note that 34 is a bellows for dustproofing.

In addition to the above-mentioned embodiments, an eccentric ring or a lever mechanism may be used as the elevating device.

Further, in the above embodiments, the lifting device is provided at the lower part of the fixed rake 1, but it may be provided at the lower part of the movable rake 20.

Furthermore, the present invention can be applied not only to rotating cooling beds but also to heating furnaces, and is effective in uniformly heating the object by rotating and transferring the object without causing it to slip. The groove shape of the movable rake 20 is also not limited to that of the above embodiment.

As is clear from the above description, according to the present invention, at least one of the fixed rake and the movable rake is fixed on the lifting device so that the height thereof can be adjusted.

Therefore, by adjusting the fixed rake to the optimum height relative to the movable rake, it is possible to rotate and transfer the bar from groove to groove without slipping, corresponding to bars of various sizes. Scratches on bars,
It has the effect of preventing the occurrence of scratches and reducing the generation of noise.

[Brief explanation of the drawing]

1, 2, 4, and 5 are partial side views of the rotating cooling bed showing the bar material transfer state in various states of the relative position of the circular locus drawn by the movable rake with respect to the fixed rake, and FIG. 6 is a sectional view showing the lower support structure of the fixed rake of the rotating cooling bed according to the present invention;
The figure is a sectional view of a fixed rake lower support structure using a worm jack. 1...Fixed rake, 3...Fixed stand, 6...Second
Wedge, 12, 13, 14, 15, 16... Bar support groove, 20... Movable rake, 21... Circular locus, 22a, 22b, 22c... Bar, 28...
Warm jack.

Claims (1)

[Scope of utility model registration request] Fixed rakes and movable rakes having bar support parts on their upper surfaces are appropriately combined and arranged in parallel at appropriate intervals, and each part of the movable rakes similarly draws a closed locus such as a circle or an ellipse in a vertical plane. In a material transfer device that rotates and heats or cools the bar material to be transferred by moving it in a similar manner, the height can be adjusted by fixing at least one of the fixed rake and the movable rake on the lifting device. A material transfer device characterized in that it can be formed.