JPH0735608Y2 - Square work transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rectangular work transfer device for transferring a rectangular work having a rectangular cross section. This rectangular work transfer device can be used, for example, to transfer a billet, a slab, or another rectangular steel piece to the hot rolling step.

[Prior Art] Conventionally, when transporting a square steel slab to a treatment process, for example, a rolling treatment process, a transport roller group including transport rollers whose axes are arranged substantially parallel to each other is used and heated to an appropriate temperature in a heating furnace. The squared steel pieces thus formed are placed on a group of conveying rollers and are conveyed toward the rolling roller device.

However, when the heat treatment furnace is separated from the conveying roller group, it is not easy to convey the high temperature rectangular steel slab discharged from the heating furnace to the conveying roller group and place it on the conveying roller group.

[Problems to be Solved by the Invention] The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to convey a square work such as a square steel slab in the air to a conveyance roller group and place it on the conveyance roller group. An object is to provide an easy rectangular work transfer means.

[Means for Solving the Problem] The rectangular work transfer device of the present invention comprises a transfer roller group composed of an appropriate number of transfer rollers whose axes are arranged substantially parallel to each other, a lifting tool that is lifted by a crane, and the like. It has a rectangular frame shape having upper and lower side portions facing each other and two side portions facing each other that connect the upper side portion and the lower side portion, and the upper side portion is vertically swingably suspended by a suspending device and carried between the transport rollers. A frame body having a possible thickness, and a first work placement surface provided on the upper surface side of the lower side of the frame body and inclined upward at a predetermined angle with respect to the vertical line as they move away from each other and intersecting each other to form a V groove. And a mounting portion having a second workpiece mounting surface, wherein the first workpiece mounting surface of the mounting portion mounts one side of a cross section of the rectangular workpiece and the second workpiece mounting surface is rectangular workpiece. Place the other side adjacent to one side of the cross section of And a first conveyance roller frame that is disposed in the vicinity of the conveyance roller group and comes into contact with one end of the lower side portion of the lowered conveyance frame to swing the conveyance frame in one direction in the plane direction of the conveyance frame. It is characterized in that it is configured by a swinging part that changes an angle between the work mounting surface and the second work mounting surface. The frame body of the transport frame according to the present invention has a rectangular frame shape having an upper side portion and a lower side portion that face each other and two side sides that face each other and connect the side portions. The square work to be conveyed has a rectangular cross section, and generally has a quadrangular shape.

[Operation] The operation of the rectangular work transfer device of the present invention will be described together with its usage. First, the square work is placed on the placement portion of the transport frame by a pusher device, manual work, or other means. At this time, one side portion of the cross section of the rectangular work is placed on the first work placement surface of the placing portion of the transport frame, and the other side portion adjacent to the one side portion of the cross section of the square work is set as the second work. Place on the placement surface.

In this manner, with the square work placed on the first work placement surface and the second work placement surface of the placement portion of the transport frame, the crane or the like is lifted to lift the lifting tool, thereby Lift off the floor. Then, in the state of being lifted in this way, the lifting tool is carried together with the rectangular work to the carrying roller group.

When the suspending tool is transported to above the swinging portion located near the transport roller group, the crane is operated to lower the suspending tool. Then, one end of the lower side of the transport frame abuts on the swing portion, and the transport frame swings in one direction in the plane direction of the transport frame due to the contact.

As a result, the angles of the first work placement surface and the second placement surface of the transport frame with respect to the vertical line are changed. Therefore, the square workpieces placed on the first workpiece placing surface and the second workpiece placing surface are swung, and when the square workpieces are transferred to the transport roller group by the swing, the square workpieces are turned. Therefore, the square work is transferred to the transport roller group while being turned.

[Embodiment] Hereinafter, a rectangular work transfer device of the present invention will be described with reference to an embodiment shown in the drawings.

In this prismatic work transfer device, as understood from FIG. 5 which is a schematic plan view of the whole, the transfer roller group 1 is
An appropriate number of transport rollers with their axes aligned substantially parallel to each other on the floor
It consists of 10. A heating furnace 20 for heating a square steel piece W having a rectangular cross section as a square work to a predetermined temperature is installed at a position apart from the transport roller group 1. Heating furnace 20
A receiving portion 22 made of a steel plate that forms a V-shaped groove is provided on the outlet 20a side. A second swinging portion 40 is installed near the receiving portion 22. Further, as shown in FIG.
A motor-driven pusher device 21 is installed adjacent to. A rolling roller device (not shown) for rolling the square steel piece W is installed in front of the transport roller group 1.

As shown in FIGS. 1 to 3, the transport frame 3 has a rectangular steel piece W.
Is carried in the air, and is composed of a hanging tool 30 that is hoisted by a crane, a frame body 31 having a rectangular frame shape, and a placing portion 32 on which the square steel piece W is placed. This hanger 30
A pillar part 300 that extends in the vertical direction and a connecting part 30 that connects the pillar part 300
It has 1 and. A shaft portion 302 is attached to the connection portion 301. The frame body 31 of the transport frame 3 is formed of an upper side portion 31a, a side side portion 31b, a side side portion 31c, and a lower side portion 31d, and the inside thereof is a space portion 31e. A lifting portion is provided on the upper side 31a of the frame 31.
310 is integrally attached, and a shaft portion 311 is attached to the lifting portion 310. Further, the shaft portion 311 and the shaft portion 302 of the hanging device 30 are a pendulum piece 312 having a swinging function. Are connected by. Therefore, the frame body 31 is vertically swingably suspended by the suspending tool 30 via the pendulum piece 312.

Here, as shown in FIG. 3, one side portion 31 of the frame body 31
L1 is the distance between b and the outer surface of the pendulum center shaft 311 and the frame
When the distance between the outer surface of the other side portion 31c of 31 and the shaft portion 311 of the pendulum center is L2, the relationship of L1 <L2 is set.
Therefore, as shown in FIG. 3, when the hoisting tool 30 is lifted by a crane or the like to hoist the frame 31, the upper side 31a of the frame 31 with respect to the horizontal line H is irrespective of whether or not the rectangular steel slab W is hoisted. The angle is one corner. The frame 31 has a thickness that allows it to be inserted between the above-described transport rollers 10.

Further, the placing portion 32 of the transport frame 3 is adjacent to the first work placing surface 320, which is a straight first work placing surface 320 that is inclined upwardly at a predetermined angle with respect to the vertical line P as the distance from each other increases. And a second work mounting surface 321 having a straight shape. The first work mounting surface 320 and the second work mounting surface 321 intersect with each other.
It intersects at 322 and forms a V groove.

In the present embodiment, when the inclination angle of the first work placement surface 320 with respect to the lower side portion 31d of the frame 31 is 2, and the inclination angle of the second work placement surface 321 with respect to the lower side portion 31d of the frame 31 is 3, The relationship of 2> 3 is set. Specifically, in this embodiment, 2 is 60 degrees and 3 is 30 degrees. In addition, in this embodiment, a locking portion 313 having the inclined surface 313a and a locking portion 314 having the inclined surface 314a are formed at both ends of the lower side portion 31d of the frame body 21 of the transport frame 3.

A side view of the transport frame 3 is shown in FIG. As shown in FIG. 6, in order to facilitate the transportation of the square steel slab W, two suspenders 30 are arranged side by side at a predetermined interval in the transportation frame 3, and similarly, the transportation frame 3 has a predetermined spacing. Two of them are arranged side by side with an interval of.

As shown in FIG. 5, the swinging unit 4 is arranged near the transport roller group 1. As shown in FIG. 4, when the transport frame 3 suspended by the crane descends, the inclined surface 313a of the locking portion 313 of the transport frame 3 contacts the swinging portion 4. When the locking portion 313 of the transport frame 3 and the swinging portion 4 come into contact with each other in this manner, the contact causes the transport frame 3 to move in the plane direction of the transport frame 3 about the shaft portion 311 as shown in FIG. Direction, that is, the arrow Q1 direction, the angles of the first work mounting surface 320 and the second work mounting surface 321 with respect to the vertical line P are changed.

Next, the operation of the rectangular work transfer device of this embodiment will be described together with the method of using it. First, as shown in FIG. 1, the crane is lowered to lower the lifting tool 30 of the carrier frame 3 suspended by the crane, whereby the second swing part 40 is moved to the lower side 31d of the carrier frame 3. The locking portion 314 of is locked. In this state, as shown in FIG. 1, the frame body 31 of the transport frame 3 is inclined around the shaft portion 311 and the side portion 31c of the frame body 31 is located at the side portion.
It is higher than 31b.

Then, as can be seen from FIG. 5, when the square steel slab W is heated to a predetermined temperature in the heating furnace 20, the heated square steel slab W is discharged from the outlet 20a of the heating furnace 20, and the square The steel piece W is received in the V groove of the receiving portion 22. In this state, one side portion W1 and the other side portion W2 of the cross section of the square steel piece W are fitted into the V groove and are inclined.

After that, the pusher device 21 operates to push the rectangular steel piece W in its length direction, that is, in the direction of arrow A in FIG. Then, as shown in FIG. 2, the rectangular steel piece W is inserted into the space portion 31e of the transport frame 3.

With the thus inserted state, the crane is lifted to lift the lifting tool 30, and the square steel side W is separated from the floor surface and floated in the air. At this time, as shown in FIG. 3, one side W1 of the cross section of the rectangular steel slab W is the first work mounting surface of the mounting part 32 of the transport frame 3.
The other side W that is placed on the 320 and is adjacent to the one side W1
2 is mounted on the second work mounting surface 321. Then, in the state in which the square steel piece W is lifted and floated in the air in this way, the crane is run toward the conveying roller group 1, and the suspending tool 30 and the square steel piece W are moved to the swinging portion 4 of the conveying roller group 1 side. Transport to the upper position in the air. At this time, the one side W1 and the other side W2 of the rectangular steel piece W are obliquely oriented.

After the suspending tool 30 and the square steel piece W are transported in the air to the swinging unit 4 on the side of the transport roller group 1 as described above, the crane is lowered to lower the suspending tool 30 to lower the square steel strip W. Then, as shown in FIG. 4, one locking portion 313 of the transport frame 3 is provided.
Comes into contact with the swinging part 4. The contact causes the frame body 31 of the transport frame 3 to move in the direction of the arrow Q1 in the surface direction of the transport frame 3 about the shaft portion 311.
Swing in the direction. As a result, as shown in FIG. 4, the first work placement surface 320 and the second work placement surface 321 of the transfer frame 3 are shown.
The angle with respect to the vertical line P is changed. Therefore, the square steel sides W placed on the first work placing surface 320 and the second work placing surface 321 are turned in a transverse section, and as can be understood from FIG. W1 is almost vertical so as to approximate the vertical line P, and the other side W2 of the square billet W is substantially horizontal so as to approximate the horizontal line H. Then, if the transportation frame 3 is further lowered in the state as it is, the rectangular steel piece W
Are placed on the transfer rollers 10 of the transfer roller group 1 and transferred. As a result, the rectangular steel slab W is conveyed by the conveying roller 10 in the direction of arrow D in FIG. It is hot rolled by a horizontal axis type rolling roller device. The other side W2 of the square steel piece W contacts the rolling roller of the rolling roller device, but the one side W1 is vertical and does not contact the rolling roller.

As described above, according to the square work transfer device of the present embodiment, the square steel slab W can be easily turned in the cross-sectional direction thereof, transferred to the transfer roller group 1, and transferred by the transfer roller group 1. .

By the way, since one side W1 of the rectangular steel piece W is on the bottom side in the heating furnace 20, the temperature tends to be lower than that of the other side W2 which is the side in the heating furnace 20. In an extreme case, a skid mark, which is a low temperature portion, considerably remains on the side W1 that was on the bottom side in the heating furnace 20. As described above, there is a problem in rolling by directly contacting the one side portion W1 having a low temperature with the rolling roller of the rolling roller device, which is not preferable in maintaining high quality of the rolled product.

In this respect, in the present embodiment, since the square steel piece W can be turned and transferred to the conveying roller group 1 as described above, the square steel piece W having a low temperature tends to be the bottom surface in the heating furnace 20. One side W1 is turned to be vertical, so that one side W1 having a lower temperature than the other side W2 does not come into direct contact with the rolling roller, and the hot rolling of the square billet W can be performed well. .

Further, in the present embodiment, when the square steel billet W is transported, the transport frame 3
Since the frame body 31 of the swings in the vertical direction while facing the pillar portion 300 of the hanging device 30, the frame body 31 only swings in the vertical direction, it is possible to prevent abnormal lateral shake of the frame body 31, Even when an abnormal lateral shake of the frame body 31 occurs, the lateral shake of the frame body 31 is restricted by the column portion 300 of the suspending tool 30.

If the lower side portion 31d of the frame body 31 of the transport frame 3 descends horizontally and comes into contact with the swinging portion 4, the frame body 31 swings in the direction of arrow Q1 or in the opposite direction. Or not necessarily constant. In this regard, in the present embodiment, as described above, the shaft portion 311 functioning as a pendulum fulcrum is set to have a relationship of L1 <L2, so that the frame body 31 is tilted by a predetermined amount during air transportation, so that the lower side portion 31d of the frame body 31 is It is inclined with respect to the horizontal line H. Therefore, there is an advantage that the swinging direction of the frame body 31 after the lower side portion 31d of the frame body 31 contacts the swinging portion 4 can be easily maintained in the arrow Q1 direction.

[Advantage of the Invention] According to the square work transfer device of the present invention, a square work such as a square steel slab can be easily rolled around the transfer roller group and placed and transferred.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and FIG.
2 is a front view of a state in which a square steel piece is inserted into the transport frame in contact with the second swing part, and FIG. 3 is a state in which the transport frame is lifted. 4 is a front view showing a state in which the rectangular steel slab is being lifted up, FIG. 4 is a front view showing a state where the transport frame is in contact with the swinging portion, FIG. 5 is a plan view schematically showing the whole, and FIG. It is a side view of a conveyance frame. In the figure, 1 is a conveyance roller group, 10 is a conveyance roller, 3 is a conveyance frame, 30 is a suspender, 31 is a frame body, 32 is a mounting portion, 320 is a first work placement surface, and 321 is a second work placement. The placing surface 4 indicates a swinging portion.

Claims (1)

[Scope of utility model registration request] 1. A conveyance roller group consisting of an appropriate number of conveyance rollers whose axes are arranged substantially parallel to each other, a hanging tool which is hoisted by a crane or the like, and an upper side portion and a lower side portion which face each other and which face each other. A frame body having a rectangular frame shape having two side portions that have a thickness that allows the upper side portion to be oscillated in the vertical direction by the suspending tool and has a thickness that can be inserted between the transport rollers; A first work mounting surface and a second work mounting surface that are provided on the upper surface side of the lower side of the frame and that are inclined upward at a predetermined angle with respect to the vertical line as they move away from each other and intersect each other to form a V groove. And a second mounting portion of the mounting portion, wherein the first work mounting surface of the mounting portion mounts one side portion of a cross section of the rectangular work and the second workpiece mounting surface mounts one side portion of the cross section of the square work. A carrying frame for mounting the other side adjacent to the The first work placement surface, which is arranged in the vicinity of the group, abuts against one end of the lowered lower side of the transport frame and swings the transport frame in one direction in the plane direction of the transport frame, with respect to the vertical line. And a swinging part that changes the angle of the second work placement surface.