JP2001163434A - Steel material reversing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steel material reversing device capable of safely and efficiently performing reversing work of a steel material. SOLUTION: This steel material reversing device is provided with a positioning means A of a steel material 2 for moving on conveyors 1, 1 to a downstream part of the conveyors 1, 1, a reversing means B for inverting and reversing the steel material 2 when the steel material 2 reaches a prescribed push position by moving to the upstream side and a cargo collecting means C for separating and collecting a steel material 2' reversed by the reversing means B from the conveyors 1, 1 in an upstream end part of the conveyors 1, 1, and since the steel material 2 placed on the conveyors 1, 1 automatically reverses by mechanical force, the working efficiency is improved, and manpower can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel material reversing apparatus for reversing steel materials such as shaped steel, stacking them in an aligned manner, and collecting cargo.

[0002]

2. Description of the Related Art A reversing operation for reversing a steel material, such as a shape steel having a length of 5 to 10 m and a weight of several hundred kilograms, which is used as a member of a ship or the like, is manually performed by a plurality of workers. Had the following problems.

[0003] Work efficiency is poor. Handling heavy objects is dangerous. Noise is generated when reversing, and the working environment is bad. Requires a large work space. Since the manner of work varies depending on the skill, skill, physical strength, etc. of the worker, it is difficult to standardize the work. Labor saving is not possible.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the problems described in the prior art.
It is an object of the present invention to provide a steel material reversing device capable of safely and efficiently performing a steel material reversing operation.

[0005]

A steel material reversing device according to the present invention comprises a positioning means for positioning a steel material moving on the conveyor at a downstream portion of the conveyor so as to be orthogonal to the conveyor; When it reaches the predetermined position of the extrusion table, the extruding table is pushed up from below, thereby inverting the steel material, and receiving a table standing upright in front of the extrusion table.
The receiving table is gradually lowered to the upstream side, and the reversing means for reversing the steel material, and the steel material inverted by the reversing means is separated from the conveyor at the upstream end of the conveyor. And collecting means for collecting.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. Positioning means A for positioning the posture so as to be orthogonal to the conveyors 1, 1 is provided at a downstream portion of the conveyors 1, 1.

As shown in FIG. 3, the positioning means A rotatably supports an intermediate portion of a substantially L-shaped lever 6 provided with an upward projection 5 at the tip, and the other end is hydraulically or hydraulically driven. It is connected to the rod of the air cylinder-7.

Normally, the projections 5 of the lever 6 project beyond the level of the conveyors 1 and 1, and the steel material 2 is placed in front of the projections 5 and moves on the conveyors 1 and 1 to abut on the projections 5. After that, the hydraulic pressure or the air sinker 7 is operated to move the lever 6 to the position shown by the dotted line in FIG. 3, thereby pushing the projection 5 of the lever 6 below the level of the conveyors 1, 1.

For example, even if the steel material 2 is placed obliquely on the conveyors 1 and 1 and starts moving in an oblique posture, it stops when the tip of the steel material 2 comes into contact with the projection 5 of the lever 6. The steel material 2 is positioned so as to be orthogonal to the conveyors 1 and 1. After the positioning, the lever 6 is returned to the original state.

The steel material 2 thus positioned is
It moves toward the upstream while maintaining the posture orthogonal to the conveyors 1 and 1.

When the steel material 2 moves upstream and reaches a predetermined position of the extrusion table 3, the extrusion table 3 is pushed up from below to invert the steel material 2 while inverting the steel table 2. 3. Hold the receiving table 4 standing upright in front of the receiving table 4 and then the receiving table 4.
Is gradually inverted to the upstream side, and a reversing means B for reversing the steel material 2 is provided.

As shown in FIGS. 4 to 6, the extruding table 3 is provided with a limiter 10 on the upper surface of the distal end portion, and the lower portion is rotatably connected to the distal end portion of the rod of the hydraulic or air cylinder 8. The tip is rotatably supported by the pin 9.
A hydraulic or air cylinder-8 is also rotatably supported.

As shown in FIGS. 4 to 6, the receiving table 4 is connected via a lever 12 to a hydraulic or air cylinder 11 whose base is rotatably supported. When the cylinder 11 is operated, as shown in FIG. 6, the cylinder 11 falls down below the level of the conveyors 1 and 1.

As shown in FIG. 4, when the tip of the steel member 2 comes into contact with the limiter 10 of the extrusion table 3, the hydraulic pressure or the air cylinder 8 on the extrusion table 3 side operates, and the steel member 2 As shown in FIG. 5, the extrusion table 3 on which
Push up and hold the steel material 2 on the receiving table 4.

When the steel material 2 falls into the receiving table 4,
The hydraulic or air cylinder 11 on the receiving table 4 side operates, and as shown in FIG. 6, the receiving table 4 is slowly lowered to the upstream side, and the inverted steel 2 'is placed on the conveyors 1, 1.

When the above series of operations is completed, the hydraulic or air cylinders 8 and 11 are stopped, and the ejection table 3 and the receiving table 4 return to their original positions shown in FIG.
The start time of each of the series of operations is set in advance by a sequencer internal timer. In FIGS. 4 to 6, reference numeral 13 denotes a cushion material such as a rubber sheet attached to the receiving table 4, which suppresses the generation of noise during inversion. Reference numeral 14 denotes a pin for rotatably supporting the receiving table 4.

There is provided a collection means C for separating the steel material 2 'inverted by the reversing means B from the conveyors 1, 1 at the upstream end of the conveyors 1, 1 and collecting the steel.

The collection means is, for example, as shown in FIG.
A guide plate 16 is provided near the upstream ends of the conveyors 1 and 1, which can be advanced and retracted by a hydraulic or air cylinder 15. When the inverted steel member 2 'rides on the guide plate 16, a sensor (not shown) catches. And hydraulic or air cylinder-1
5, the guide plate 16 is retracted to a predetermined position behind the stop plate 17.

The inverted steel material 2 ′ retreats on the guide plate 16, and when its tip hits the stop plate 17, the steel material 2 ′ is turned on.
Is stopped, but the guide plate 16 continues to move to the stop plate 17.
Is retracted to a predetermined position behind the steel material 2 ′, so that the support of the steel material 2 ′ is lost, and the steel material 2 ′ falls downward, as shown in FIG.
Collected.

When the sensor catches that the stop plate 17 has retreated to a predetermined position, the hydraulic or air cylinder 15 stops, and the guide plate 16 returns to the original position.

[0021]

Since the present invention is configured as described above, it has the following effects. The work efficiency is improved because the work other than the work of putting the steel material on the conveyor can be automatically performed by mechanical force. Since the work of handling heavy objects is reduced by human power, work safety is improved. Since the occurrence of noise at the time of reversing is suppressed, the working environment is improved. Since it is no longer necessary for a large number of workers to perform the reversing work scattered in various places, the work space can be reduced. Work progress can be standardized because the progress of the work is not affected by individual differences such as the skill level, skill, and physical strength of the worker. Labor saving can be achieved.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a schematic side view of FIG. 1 from which positioning means is omitted.

FIG. 3 is a schematic side view showing an embodiment of a positioning unit.

FIG. 4 is a schematic side view showing one embodiment of the reversing means.

FIG. 5 is a schematic side view showing a state in which a steel material is inverted by the reversing means of FIG. 4;

FIG. 6 is a schematic side view showing a state in which the inversion of the steel material has been completed by the inversion means of FIG. 4;

FIG. 7 is a schematic side view showing an embodiment of a collection means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyor 2 Steel material 2 'Inverted steel material 3 Extrusion table 4 Receiving table 5 Lever projection 6 Lever 7 Hydraulic or air cylinder 8 Hydraulic or air cylinder 9 Pin 10 Limiter 11 Hydraulic or air cylinder 12 Lever 13 Cushion material 14 Pin 15 Hydraulic or air cylinder 16 Guide plate 17 Stop plate A Positioning means B Reversing means C Collection means

Claims (1)

[Claims] 1. Positioning means for positioning a steel material (2) moving on the conveyor (1, 1) at a downstream portion of the conveyor (1, 1) so as to be orthogonal to the conveyor (1, 1). (A), when the steel material (2) moves upstream and reaches a predetermined position of the extrusion table (3), the extrusion table (3).
While the steel member (2) is inverted by pushing up the table (3) from below, the steel table (2) is held on a receiving table (4) standing upright in front of the extruded table (3). Reversing means (B) for gradually lowering the receiving table (4) to the upstream side and reversing the steel material (2);
The steel material (2 ′) inverted by the reversing means (B) is fed to the conveyor (1, 1) at the upstream end of the conveyor (1, 1).
1) A steel material reversing device, comprising: a collecting means (C) for separating from and collecting from the steel material.