JP2891831B2 - Dunnage feeder for billet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying dunnage to a billet.

[0002]

2. Description of the Related Art In general, piles of billets are arranged such that a plurality of billets, for example, four billets are arranged side by side in close contact with each other as one unit for handling, and these are successively piled up in the same direction. It is.

[0003] In such a situation, a lot change occurs,
When less than four units occur in the same lot, as shown in FIGS. 6A and 6B, dunnage 10 is inserted into the partition at that stage at two locations perpendicular to the steel slab 11. . The reason for inserting the dunnage thereon when less than four is to prevent the steel slab above it from dropping and mixing.

There is no patent information or the like relating to the dunnage supply device of the present invention.

[0005]

The dunnage is generally made of steel in consideration of durability.
kg. Conventionally, the supply / removal work of this dunnage relied on human power and was a heavy muscle work. In addition, this work may be an aerial work, and there are many cases where the work is performed at a height exceeding 2 m.

As described above, supply of dunnage
The removal operation is a typical example of the so-called 3K operation, and its automation has been strongly desired.

[0007]

SUMMARY OF THE INVENTION The present invention provides a truck, a revolving frame mounted on the bogie, and revolvable about a vertical direction, vertically moving along the revolving frame, and perpendicular to the vertical direction. A dunnage supply device for a steel slab, comprising: a telescopic mechanism capable of expanding and contracting in any direction, a clamp mechanism installed at the tip of the telescopic mechanism to clamp dunnage, and a dunnage stock device installed on the carriage. .

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the first embodiment of the present invention.
1 shows an embodiment of the present invention.

[0010] As described above, the steel slabs 11 are piled up as a unit for handling by arranging four slabs almost in close contact and side by side. In the example of FIG. 1, a state is shown in which dunnage is supplied after stacking seven handling units on the billet mounting table 25. Steel slab 22 to prevent mountain collapse
In many cases, the billet 11 can be piled up. In the embodiment of the present invention, the side length of the billet 11 is 162 mm, the maximum number of piles is 12, and the pile height is 2 m or more due to the influence of the dunnage insertion.

A space of about 1.5 m is provided at a place L where the billets 11 are adjacent in the longitudinal direction, and the dunnage supply device 30 of the present invention is installed therein.

A track 21 is laid on the floor at right angles to the longitudinal direction of the billet 11. The carriage 1 is placed on a track 21 and can travel between groups of billets 11 piled up on both sides. The revolving frame 2 is mounted on the trolley 1, and can be revolved around the vertical direction by operating the revolving cylinder 6. The turning range is 180 °,
Dunnage can be supplied on the steel slab 11 on either side of the track 21. A dunnage stock device 5 is installed on a bogie at a midpoint 90 ° of the turnable range. When the dunnage 10 is supplied onto the steel slab 11, the dunnage 10 is taken out of the slab 11, and after the dunnage 10 is removed from the slab 11, the dunnage 10 is stored here.

The telescopic mechanism 3 is a three-stage arm 26, and a first-stage arm 26 ′ is provided in an outer frame 27.
A second-stage arm 26 "is included in a first-stage arm 26 '.
When the third-stage arm 26 "" is incorporated in the second-stage arm 26 ", and the telescopic cylinder 8 is operated,
The first stage, the second stage, and the third stage are simultaneously extended by the mechanism using the pulley, and can be extended up to about 2.5 m. The telescopic mechanism 3 can be moved up and down along with the revolving frame 2, and moves the telescopic mechanism 3 to a desired height by operating the elevating motor 7 to wind up or down the wire 28 connected to the telescopic mechanism 3. be able to.

The clamp mechanism 4 is installed at the tip of the telescopic mechanism 3, and the clamp cylinder 9 (shown in FIG. 2) can be operated to clamp and open the dunnage 10.

FIG. 2 is a block diagram of the present invention.
The present invention provides a clamp mechanism 4 that can follow even when the billet 11 has a bend.

The clamp cylinder 9 is mounted on the frame 14.
Is provided, and a clamp hand 15 is coupled to the tip thereof. By operating the clamping cylinder 9, the clamp hand 15 on the left side of the drawing is directly operated, and the other clamp hand 15 'is also operated by the link mechanism connected to the clamp hand 15 on the left side. 'Makes it possible to pinch and open the dunnage 10.

The frame 14 and the beam 12 installed at the tip of the third stage arm 26 ″ ′ are connected by a slide shaft 13. The slide shaft 13 is fitted to the beam 12, and the lower end is fixed to the upper part of the frame 14. On the other hand, a cam follower 16 is provided below the frame 14.

Slide shaft 13 and cam follower 1
6 is one of the features of the present invention. This is billet 11
This is a countermeasure against bending of the steel slab.
It is possible to travel while following the upper surface of one.

FIG. 3 shows the third embodiment of the present invention.
1 shows an embodiment of the present invention.

When there are a large number of peaks of the billet 11, it is not reasonable to install a large number of the dunnage supply devices 30 of the present invention in each space where the billet 11 is adjacent in the longitudinal direction. Claim 3 of the appended claims is a solution to such a case, wherein a main carriage 23 that travels in a direction perpendicular to the traveling direction of the dunnage supply apparatus of claim 1 is provided, and the dunnage supply apparatus is provided. When moving to another row, the carriage 1 is loaded on the parent carriage 23 and moves.

The track 21 'of the main bogie 23 is laid outside the outer peak in parallel with the longitudinal direction of the billet 11. When the dunnage supply device 30 is moved to another row, the parent carriage 23
Is stopped at a position intersecting with the track 21 of the bogie 1, and then the bogie 1 is run on the parent bogie 23, loaded, and after traveling to a position intersecting with the track of the bogie 1 in the row where the parent bogie 23 is to be moved Then, the carriage 1 is disengaged from the parent carriage 23, and travels on the new track.

[0022]

Next, the operation of supplying and removing dunnage on a billet using the apparatus of the present invention will be described with reference to FIGS. 1 and 2 in the second embodiment of the present invention. The dunnage supply device 30 is on standby with the expansion and contraction mechanism 3 contracted and at the lower limit.

First, the case where the dunnage 10 is supplied will be described.

The turning cylinder 6 is operated, and the turning frame 2 is turned by 90 ° so that the clamp mechanism 4 is directed toward the dunnage stock device 5. Next, the clamping cylinder 9 is operated, and the clamp hand 15 clamps one dunnage 10. At this time, in order to simplify the removal of the dunnage 10, a dunnage lifting cylinder 24 is installed as shown in FIG.
It is desirable that 0 is always at a fixed position. Next, the elevating motor 7 is operated to wind up the wire 28, and the telescopic mechanism 3 is raised to a position where the lower surface of the dunnage 10 is slightly higher than the upper surface position of the steel piece 11 to be supplied. A billet 11 for supplying the dolly 1 to the carriage 1 in parallel with the above operation
Drive to the front of. When the traveling of the carriage 1 and the raising of the telescopic mechanism 3 are both completed, the telescopic cylinder 8 is operated to extend the arm of the telescopic mechanism 3. The operation of the telescopic cylinder 8 is stopped at a position where the clamp mechanism 4 is slightly inside the end of the billet 11. Next, the lifting motor 7 is operated to lower the wire 28 and lower the clamp mechanism 4.
When the clamp mechanism 4 descends and the cam follower 16 comes into contact with the steel piece 11, thereafter, the clamp mechanism 4 does not descend, and only the telescopic mechanism 3 descends. That is, the extension mechanism 3 descends while the beam 12 slides on the slide shaft 13. Next, when the intermediate point detection sensor 17 installed on the beam 12 is operated by the striker 18 installed on the frame 14 of the clamp mechanism 4, the elevating motor 7 is stopped, and the lowering of the telescopic mechanism 3 is stopped. Next, the telescopic cylinder 8 is operated again to extend the arm of the telescopic mechanism 3. The arms stop slightly before all arms are fully extended. During this time, the clamp mechanism 4 is
Run on the upper surface of the billet 11, and even if the billet 11 has a bend, the vertical movement caused by the bend is caused by the slide shaft 13
Are absorbed by sliding in the beam 12. Finally, the clamping cylinder 9 is operated, the clamp hand 15 is released, and the supply of the dunnage 10 to the upper surface of the steel piece 11 is completed. After that, basically, a series of operations are performed in reverse, and the dunnage supply device is returned to the standby state.

Next, the case of removing the dunnage 10 will be described.

The operation is almost the same as the case where the dunnage 10 is supplied. The above operation is performed without removing the dunnage 10 from the dunnage stock device 5. Further, when the clamp mechanism 4 reaches the dunnage 10, the clamping cylinder 9 is operated to contract the clamp hand 15 and clamp the dunnage 10. In the embodiment of the present invention, as shown in FIG. 5, clamped hardware 19 having a V-shaped groove is mounted on the dunnage 10 so that one V-shaped groove is directed symmetrically to the outside. Therefore, even if the dunnage 10 is slightly displaced in the longitudinal direction on the steel piece 11, the centering is surely performed at the time of clamping, so that the displacement can be corrected. Further, since the dunnage detection sensor 20 is provided below the frame 14 of the clamp mechanism 4, even if the dunnage 10 is slightly displaced in the width direction on the billet 11, the expansion and contraction mechanism is maintained after the dunnage detection sensor 20 is operated. By slightly extending the third arm, the clamp can be surely performed.

[0027]

According to the present invention, the work of supplying and removing dunnage, which has conventionally been performed manually, can be automated.
As a result, not only can personnel be rationalized, but also so-called 3K work such as heavy muscle work and high-place work can be eliminated, which is extremely effective as a measure for personnel.

[Brief description of the drawings]

FIG. 1 is an overall side view showing one embodiment of a dunnage supply device of the present invention.

FIG. 2 is a front view showing a clamp mechanism of the dunnage supply device of the present invention.

FIG. 3 is a plan layout view showing that a parent bogie has been installed in order to move the dunnage supply device of the present invention to another billet row.

FIG. 4 is a diagram showing a dunnage stock device installed on a truck of the dunnage supply device of the present invention.

FIG. 5 is a view showing a clamped metal having a V-shaped groove fixed to dunnage for facilitating clamping of dunnage.

FIG. 6 is an explanatory plan view showing an example of insertion of dunnage for partitioning piles of billets.

[Explanation of symbols]

 1: Bogie 2: Revolving frame 3: Extension mechanism 4: Clamp mechanism 5: Dunnage stock device 6: Revolving cylinder 7: Elevating motor 8: Retractable cylinder 9: Clamp cylinder 10: Dunnage 11: Steel piece 12: Beam 13: slide shaft 14: frame 15, 15 ': clamp hand 16: cam follower 17: neutral point detection sensor 18: striker 19: clamped hardware 20: dunnage detection sensor 21, 21': track 22: steel piece frame 23: Main trolley 24: Cylinder for raising and lowering dunnage 25: Billet mounting table 26, 26 ', 26 ", 26' '': Arm 27: Outer arm 28: Wire 30: Dunnage supply device

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Keiichi Takahashi 12 Nakamachi, Muroran-shi, Hokkaido Nippon Steel Corporation Muroran Works (56) References JP-A-53-53868 (JP, A) 3-31130 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B65G 57/00

Claims (3)

(57) [Claims] A trolley, a slewing frame mounted on the trolley and capable of turning about a vertical direction, and a telescopic mechanism capable of moving up and down along the slewing frame and extending and contracting in a direction perpendicular to the elevating direction. A dunnage supply device for a steel slab, comprising: a clamp mechanism installed at the tip of the expansion and contraction mechanism to clamp dunnage; and a dunnage stock device installed on the carriage. 2. A clamp mechanism comprising a frame, a clamp cylinder mounted on the frame, and a clamp hand which can be opened and closed by the operation of the clamp cylinder, and a telescopic mechanism and a slide provided on an upper portion of the frame. 2. A slide shaft fitted movably, a cam follower is provided at a lower portion of the frame to follow the upper surface of the billet, and a clamp mechanism can follow the bending of the billet. For supplying dunnage to steel billets. 3. A truck is mounted, and the traveling direction with the truck is 90.
The dunnage supply device for steel bill according to claim 1, further comprising a parent carriage capable of traveling in different directions.