JPH0873035A - Dunnage laying device - Google Patents

Abstract

PURPOSE: To lay a previously piled dunnage to a prescribed position on the long substance on a piling table correctly and automatically by smoothly taking out one or two pieces from a dunnage transfer part. CONSTITUTION: A dunnage laying device is equipped with a pair of hands 7a and 7a which nipping-hold both the ends of a dunnage D in a demountable manner, shiftable mechanisms 5 and 6 which are equipped with the hands 7a and 7a at the top ends, and shift the hands 7a and 7a between a previously determined dunnage laying position on a long substance C transferred on a piling table 1 and the holding position for the dunnage D, and a traveling truck 3 which mounts the transfer mechanisms 5 and 6 and is equipped with dunnage piling part E and can travel along the longitudinal direction of the piling table 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention, when a long product such as a shaped steel or a steel plate manufactured at a factory site such as a steel mill or a steel mill is stacked and placed, a gap is formed between the upper and lower parts of the long product. The present invention relates to a multi-bar laying device for laying multi-bars (also referred to as dunnage) to intervene to hold a multi-bar.

[0002]

2. Description of the Related Art In the case of temporarily storing a long object of the type described above in a factory, a warehouse or the like, it is common to load the above long object in multiple stages in order to effectively use the building. However, in order to make it easier to take out those long objects at a later date, in order to keep the necessary gaps in advance, a long bar made of wood, in addition to channel steel, I-shape steel or H-shape steel, was Spaces are provided in the longitudinal direction of the scales, and the stacks are usually arranged at two to three places for each stacked stage. At that time, conventionally, by stacking the 10,000-bars that have been stacked and stored in advance in a 10,000-bar storage box with the lower end opened, one by one is fed out from the lower end by a roller chain, a rotary-type multi-bar feeder, etc. After laying directly at a predetermined position on a long object conveyed as a bundle, or by placing the bar once on a traveling carriage that travels along the longitudinal direction of the piling table by the same method. , The bar is sent out on a long object on a piling table by a chain type conveyor. In the latter case, the position on the long object is to move and position the traveling carriage,
The height of the upper surface of the long object is adjusted by lowering the piling table to the position (height) of the bar of the traveling carriage.

As a prior art of this kind, Japanese Patent Laid-Open No. 62-8
There are devices described in Japanese Patent No. 3930, Japanese Patent Application Laid-Open No. 62-83931, and Japanese Utility Model Publication No. 62-32190.
The former two have the same structure as the above-mentioned conventional device for feeding out from a 10,000-bar storage box, and the latter has a structure in which a claw-shaped feeder is provided at both lower ends of a frame-shaped body for storing a 10,000-bar with an open lower end. , Which is basically the same as the conventional device. In each case,
The 10,000-bar storage box is moved above the long object to lay the 10,000-bar directly on the long object.

[0004]

However, in all of the conventional 10,000-bar laying devices, the 10,000-bars that have been previously stacked and stored in the 10,000-bar storage box or the frame-like body are arranged one by one from below in the roller chain. Since, for example, 100,000 rods are fed one by one from the lowermost end using the above, the load of the upper 100,000 rods acts on the ones trying to be fed out, and it cannot be smoothly fed. Therefore, it takes a long time to feed out the bar and the workability is poor. In addition, when a long object is placed on the piling table, the width of the long object to be placed may be wider than the length of one thousand bars per one.
It is necessary to lay two ten thousand rods at each location with their positions shifted in the length direction. In such a case, as described in the above publication,
In a conventional device that directly lays a million bars on a long object, it is difficult to feed the second million bars adjacent to the first million bars, and accurate positioning cannot be performed. Furthermore, the former two of the devices described in the above publications lay a second mulch bar on a long object by changing the position of the second mulch bar in order to extend the mulch bar and lay it on a long object attracted by a magnet. Is difficult to do. Further, in the latter case, the frame-shaped body is moved while being hung on a crane or the like via a wire, so that it is very difficult to accurately lay a bar on a preset position.

The present invention has been made in view of the above-mentioned point, and one or two pre-loaded multi-bars can be smoothly taken out simultaneously from the multi-bar loading section to a predetermined position on the long object of the piling table. It is an object of the present invention to provide a stick bar laying device that can be laid accurately and automatically.

[0006]

Means for Solving the Problems In order to achieve the above object, the stick laying device of the present invention comprises: a) a pair of hands for removably sandwiching and gripping both ends of the stick, and b) this hand. And a movement mechanism for moving the hand between a predetermined laying position of a bar on a long object placed on a piling table and a gripping position of the bar, and c) this movement. The vehicle is equipped with a mechanism, is provided with a loading section for the bar, and is provided with a traveling carriage capable of traveling along the longitudinal direction of the piling table.

According to a second aspect of the present invention, d) the moving mechanism is provided upright on the traveling carriage, and an upper horizontal portion has an inverted L-shaped arm extending above the piling table, and the upper horizontal portion of the arm. It is preferable that the lifting shaft is horizontally movable along the vertical axis and has the hand at the lower end.

According to a third aspect of the present invention, e) the moving mechanism includes a vertical arm vertically erected on the traveling carriage so as to be horizontally rotatable, and a base end vertically tiltable on an upper end of the vertical arm. It may be composed of a tilting arm that is pivotally attached and has the hand at the tip.

According to a fourth aspect of the present invention, f) two pairs of the pair of hands are provided in parallel to each other at the tip of the moving mechanism, and one pair of hands is relative to the other pair of hands. Can be configured to be movable in parallel.

[0010]

According to the mulch bar laying apparatus of the present invention having the above-mentioned structure, the mulch bar at the upper end position of a large number of mulch bars stacked on the mulch bar loading section on the traveling carriage is handled by a pair of hands. Grasp by holding both ends. Then, the manipulator gripped by the hand is moved onto the long object of the piling table by the moving mechanism and laid at a preset position on the long object. Further, the laying of the bar on another laying position in the longitudinal direction of the long object is performed by the same procedure as above after the traveling carriage is moved along the piling table and stopped at the laying planned position.

In the apparatus according to the second aspect of the present invention, the long bar of the piling table is moved by horizontally moving the bar taken out from the upper end of the bar loading section on the traveling carriage along the upper horizontal part of the inverted L-shaped arm. After being once conveyed above the laying position, the elevating shaft is lowered to lay it at a preset position on the long object.

In the apparatus according to the third aspect of the invention, the bar taken out from the upper end of the bar-loading section on the traveling carriage is once conveyed above the long object on the piling table by horizontally rotating the vertical arm, By tilting the hand at the tip of the tilting arm downward, it is laid at a preset position on the long object. Also, after moving the traveling carriage to near the supply position of the bar, the bar loaded on the bar is horizontally swiveled, the tilting arm is tilted vertically and grasped, and the vertical arm is reversed. By horizontally swinging in the direction and tilting the tilting arm, it is possible to stack up a number of bars on the loading section on the traveling carriage.

In the apparatus according to the fourth aspect of the present invention, after two grips of two sticks are simultaneously gripped from the sticking part of the traveling carriage by two sets of hands, the two sticks are placed above the long object on the piling table. Can be moved, and the bar of one hand can be moved parallel to the bar of the other hand in the longitudinal direction so that two bar can be laid simultaneously at a predetermined position on the long object. Therefore, when the width of the long object placed on the piling table is wider than the length of the bar, two bar can be laid simultaneously in one operation, which is effective.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the stick laying device of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a plan view showing the overall arrangement of a loading piler facility equipped with a mulch bar laying device according to this embodiment.
FIG. 2 is a plan view showing an embodiment of a mandrel laying device, and FIG.
It is a side view showing the multi-bar laying device.

The site area of the loading piler A for stacking long products such as shaped steel and bar products, which are generally manufactured in steel mills, etc., varies depending on the type of the product, and the length in the longitudinal direction is from 5 m to over 30 m. It may extend and its width is usually about 1 to 2 m. In this example, FIG.
As shown in FIG. 11, eleven pedestals 1a are juxtaposed on the piling table 1 at regular intervals (for example, 1.5 m).
A long product, in this example, the I-shaped steel C, is placed along the longitudinal direction of the piling table 1 in sequence from one end on a plurality of pedestals 1a. In addition, loading pilot A,
A pair of rails 2 and 2 are laid at intervals in parallel along the longitudinal direction of the piling table 1. A traveling carriage 3 is movably placed on the rails 2 and 2.
It is driven by the motor 3a arranged in the lower part as described above. When the bar laying device B is not used, the traveling carriage 3 is stopped at the end of the rail 2, that is, at the standby position.

As shown in FIGS. 2 and 3, the rail 2 is provided near the one end of the traveling carriage 3 (on the side opposite to the piling table 1).
A guide member 4 is arranged in parallel with the guide member 4, and an inverted L-shaped arm 5 is provided upright along the guide member 4 so as to be movable in parallel with the rail 2. The upper horizontal portion of the inverted L-shaped arm 5 is composed of a pair of guide portions 5a, 5a and extends above the piling table 1. The elevating shaft 6 is movably provided along the guide portions 5a, 5a via the traveling portion 6a, and the traveling portion 6a of the elevating shaft 6 is wound around the sprockets 6b, 6c arranged at both ends of the guide portion 5a. Both ends of the roller chain 6d thus secured are fixedly attached, and the motor shaft (not shown) rotates one sprocket 6b to move the lifting shaft 6 through the roller chain 6d.

The elevating shaft 6 is arranged so as to be vertically movable with respect to the traveling portion 6a, and ascends and descends via an elevating device (not shown) including a motor, a chain, and a sprocket. At the lower end of the lifting shaft 6, the air cylinders 7b
A gripping device 7 for a bar D having two pairs of hands 7a and 7a that are opened and closed by b is installed in parallel. Although the two sets of hands 7a, 7a in this example are fixed at fixed positions, one set of the hands 7a, 7a of the grip attachment 7 is replaced with the other set of hands 7a, 7a.・
It can be configured to be relatively movable parallel to 5a. For the bar D, a wood of 60 mm square to 90 mm square is used in this example. A loading section E for the million bars D is provided near the piling table 1 on the traveling carriage 3, and a large number of necessary million bars D are loaded in advance. The parallel bar D loading group is hung on the parallel bar loading section E by a crane (not shown) with the inverted L-shaped arm 5 moved to a position away from the parallel bar loading section E. In this example, the moving mechanism of the gripping device 7 is configured by the guide member 4, the inverted L-shaped arm 5, and the elevating shaft 6.

In FIG. 3, reference numeral F indicates a phosphorus tree, and this phosphorus tree F is usually provided in the upper stage of a large number of stacked rods D in a direction orthogonal to each other.
A pair of openable and closable hands (not shown) or a suction device (not shown) other than a is attached to the gripping device 7, and both ends of the stick D are gripped by the hands 7a and 7a. In doing so, the phosphorus tree F can be picked up and collected. As another excluding or collecting method, the gripping device 7 may be provided with an excluding mechanism of the phosphorus wood F, for example, an air blowing mechanism or a sweeping mechanism, and excluding or collecting from the bar D.

Next, description will be made on the manner of use of the stick bar laying apparatus B of the embodiment having the above-mentioned structure. In FIG. 1, on the pedestal 1a of the piling table 1, the I-shaped steel C is, for example, 1
When 0 of them are juxtaposed and the first stage is full, the traveling carriage 3 moves along the rail 2 and stops at the planned laying bar.

In this state, the inverted L-shaped arm 5 on the traveling carriage 3 moves along the guide member 4 to the pick-up position of the many bars D stacked on the many-bar stacking section E on the traveling carriage 3. After stopping, the elevating shaft 6 is slightly lowered with the two pairs of hands 7a, 7a being opened, and the two pairs of hands 7a, 7a are closed by the corresponding air cylinders 7b, so that the upper end The two sticks D at the position are clamped from both ends and simultaneously gripped.

The elevating shaft 6 rises to the vicinity of the uppermost position and simultaneously picks up two parallel rods D, and the inverted L-shaped arm 5 is arranged side by side on the piling table 1 along the guide member 4. Move to the planned position for laying 10,000 bars parallel to the direction.

The elevating shaft 6 moves along the upper horizontal part 5a of the inverted L-shaped arm 5 through the running part 6a at right angles to the I-shaped steel C on the piling table 1 and the elevating shaft 6 moves.
Is lowered and one of the hands 7a, 7a is opened, whereby the first bar D is laid.

Further, the upper horizontal portion 5a of the inverted L-shaped arm 5 is
The lifting shaft 6 moves along the other hand, and the other hand 7
By opening a.7a, the second bar D becomes 1
It is laid adjacent to the first bar D and displaced in the longitudinal direction.

After laying a bar D in one location of the I-shaped steel C, the elevating shaft 6 rises to the uppermost position, and a bar on the traveling carriage 3 along the upper horizontal portion 5a of the inverted L-shaped arm 5. Return to above the loading section E. Then, the traveling vehicle 3 moves along the rail 2 to another planned position for laying the I-shaped steel C and stops there. Hereinafter, the above-mentioned steps are repeatedly performed, and the I-shaped steel C
Ten thousand bars D are laid at two or three places depending on the length of the. When the laying work of the bar D is completed in this way, a predetermined number of the I-shaped steels C are already placed on the piling table 1 on the bar D laid at two or three places.
Stacked in the same manner as the shaped steel C, the above steps are repeated again.

As described above, the I-shaped steels C are stacked in a predetermined number of stages (for example, 5 stages), and when the piling operation is completed, the traveling carriage 3 is returned to the standby position. Then, the I-shaped steel C that has been piled using the C hook or the like is lifted by a crane or the like and conveyed to a predetermined position.

By the way, although each of the above-mentioned operations can be sequentially performed by the operator, in the present example, the operation procedure is input into the memory of the computer in advance and automatically operated. It can also be operated automatically by using sequence control. In order to securely grip the uppermost bar D of the bar D loaded on the bar E mounting portion E of the traveling carriage 3 with the hands 7a, 7a, the laser displacement meter for detecting the position of the bar D is used. Grasping device 7 (not shown) or the like
It is recommended to attach it to the.

FIGS. 4 and 5 show another embodiment of the multi-bar laying device. As shown in these figures, in the bar-laying device B ′ of this embodiment, a horizontally swingable table 11 is provided on one side of the traveling carriage 3, and a vertical arm 12 is erected on the table 11. The base end of the tilting arm 13 is pivotally attached to the upper end of the vertical arm 12 so as to be tiltable in the vertical direction, and the gripping device 7 is attached to the tip of the tilting arm 13 downward. That is, the moving mechanism of the gripping device 7 is composed of the horizontal turning table 11, the vertical arm 12, and the tilting arm 13. In addition, the table 1 on the traveling carriage 3
On the opposite side of 1, a multi-bar loading section E is provided. The direction of the parallel bar D loaded on the parallel bar loading section E is different from that in the above embodiment. This is because, in this example, the bar D picked up from the bar loading section E on the traveling carriage 3 is laid horizontally on the I-shaped steel C by rotating substantially 90 °, and the bar D is the piling table 1
They are stacked in a direction parallel to (longitudinal direction).

Further, in this example, a bar D on the traveling carriage 3
Is supplied by using the dedicated carriage 14, the traveling carriage 3
Above, a pair of rails 1 are arranged in a direction orthogonal to the rails 2.
5 ・ 15 is laid. Then, at a predetermined position within the traveling range of the traveling carriage 3, the rails 16 and 16 corresponding to the rails 15 and 15 are provided on the side opposite to the piling table 1 with the rails 2 and 2 interposed therebetween with a slight gap. It is laid on top. On the rails 16 and 16 of the supply table 17, the cart 14 carrying the bar D is placed. This dolly 14
Is equipped with two wheels 14a on both sides of the lower surface, and when the carriage 14 is transferred between the rail 16 and the rail 12, the carriage 14 is not tilted and there is no influence of the gap of the rail joint portion, and the transfer is performed smoothly. I am trying.

The usage mode of the bar-laying device B'of the second embodiment described above is basically the same as that of the above-mentioned embodiment, but the hand 7a extends from the upper end of the bar-loading section E to both ends of the bar-bar D.・ 7a
After gripping and gripping with, and horizontally swinging about 90 ° horizontally to convey above the I-shaped steel C, the tilting arm 13 is tilted downward and laid on the I-shaped steel C. Different from the above embodiment. In the case of this example, the stop position of the traveling carriage 3 is set not only at the laying position of the I-shaped steel C on the piling table 1 (2 to 3 places) but also at the position of the supply base 17.

The devices B and B'of the two embodiments described above are used.
In the case of, the I-shaped steel C placed on the piling table 1
When the rods D have a narrow width and are laid one by one at one place, the laying work is performed by gripping the rods D only by the one hand 7a of the gripping device 7a.

The two embodiments of the present invention have been described above.
The present invention can also be implemented as follows.

The long object C such as I-shaped steel placed on the piling table 1 has a narrow width, and one bar D is placed in one place.
When mainly laying books one by one, only one set of hands 7a of the gripping device 7 is provided. However, when it is necessary to lay two million rods D in one place, it is necessary to repeatedly take out the million rods D on the traveling carriage 3 and lay them on the long object C at the same position. Become.

Two sets of hands 7a, 7a of the gripping device 7
Are configured to be movable relative to each other, or to the other set of hands 7a, 7a relatively parallel to the one set of hands 7a, 7a. When laying on the long object C, two sticks It is possible to shift the position of D.

In addition to the million bars D, when laying the million bars D on the long object C, a step may occur at both ends of the million bars D. In this case, a laying board (not shown) may be used. It is laid under one end of the rod D, but since this laying board is shorter than the rod D, the pair of hands 7a, 7a of the gripping device 7 are
Another hand that can hold the floorboard (vacuum suction pad, etc.)
Should be provided so that the floor plate can be automatically laid.

As shown in FIG. 2, the inverted L-shaped arm 5 is erected so as to be movable parallel to the rail 2 along the guide member 4, but the bar mounting portion E can be moved parallel to the rail 2. Alternatively, the inverted L-shaped arm 5 may be fixed and installed on the traveling carriage 3.

[0037]

As is apparent from the above description,
The multi-bar laying device of the present invention has the following excellent effects.

(1) In the conventional 10,000-bar laying apparatus, one one of the 10,000-bars stacked and stored in the 10,000-bar storage box is fed out from the bottom, but in the present invention, it is a predetermined position on the traveling carriage. The rods stacked on the tray are taken out in order from the top by gripping both ends of the rods with the hands, so that the take-out work can be performed smoothly.
Work efficiency is improved.

(2) In the apparatus according to the second aspect, the horizontal loading of the 10,000 bars between the traveling carriage and the piling table and the raising and lowering operation of the 10,000 bars at each conveying position are performed, so that the loading section on the traveling carriage is loaded. It is possible to efficiently lay out the mulch bar taken out from the upper end of the piling table at a predetermined position on the long object of the piling table.

(3) In the device according to the third aspect, the horizontal swiveling and the tilting motion of the arm in the vertical direction can efficiently take out the bar from the traveling carriage and lay it on a long object. Further, it is also possible to move the traveling carriage to a position near the supply position of the rods and then stack the rods loaded therein to the loading section on the traveling rod.

(4) In the device according to the fourth aspect, since two parallel rods can be simultaneously gripped from the parallel rod loading portion of the traveling carriage and two parallel rods can be laid at a predetermined position on the long object at the same time. When the width of the long object placed on the piling table is wider than the length of the bar, two bar can be laid with one operation. Therefore, the working speed is doubled as compared with the conventional case where one bar is taken out and laid.

[Brief description of drawings]

FIG. 1 is a plan view showing an overall arrangement of a loading piler equipment equipped with a bar laying apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the stick laying device of the present invention in FIG.

FIG. 3 is a side view showing the multi-bar laying device of FIG. 2.

FIG. 4 is a plan view showing another embodiment of the stick laying device of the present invention.

FIG. 5 is a side view showing the stick laying device of FIG. 4.

[Explanation of symbols]

 1 Piling Table 2 ・ 15 ・ 16 Rail 3 Traveling Carriage 4 Guide Member 5 L-Shaped Arm 6 Lifting Shaft 7 Gripping Device 7a Hand 11 Horizontal Swiveling Table 12 Vertical Arm 13 Tilt Arm 14 Carriage B / B 'Million Bar Laying Device C I Type Steel (long product) D ten thousand bars

Claims (4)

[Claims] 1. Laying a bar made of wood or the like used to interpose the long objects such as shaped steels manufactured in an iron mill or the like in a space above and below the long objects. In a multi-bar laying device, a pair of hands that removably clamp and hold both ends of the multi-bar, and a hand equipped with this hand at the tip, are set in advance on a long object placed on a piling table. A moving mechanism that moves the hand between a bar laying position and a gripping position of the bar, and a loading unit for the bar equipped with this moving mechanism, which can travel along the longitudinal direction of the piling table. A trolley laying device, which is equipped with a traveling carriage. 2. An inverted L-shaped arm, wherein the moving mechanism is erected on the traveling carriage and has an upper horizontal portion extending above the piling table, and is horizontally movable along the upper horizontal portion of the arm. 2. The bar-laying device according to claim 1, further comprising an elevating shaft having the hand at the lower end. 3. The moving mechanism comprises a vertical arm vertically erected horizontally on the traveling carriage, a base end pivotally attached to the upper end of the vertical arm so as to be vertically tiltable, and the hand at the tip. The stilt bar laying device according to claim 1, further comprising a tilting arm provided with the. 4. The pair of hands are provided adjacent to each other in parallel to each other at the tip of the moving mechanism, and the hand of one set is relatively movable in parallel to the hand of the other set. Item 10. A ten thousand bar laying device according to any one of items 1 to 3.