JPH07165384A - Angle steel grasping device - Google Patents

Abstract

PURPOSE:To provide an angle steel grasping device which suits a work to take out stacked angle steels one by one for distribution. CONSTITUTION:A bracket 4 is rotatably mounted on a base bed 3 having an upper end surface 3a, attached to a horizontal frame forming the main part of angle steel distributing equipment, through a pivot 4a. A pair of air cylinders 2 and 2 are installed symmetrically at an angle of 90 deg. to the bracket 4 through a mounting bed 5 and magnets (electromagnets) 1 and 1 are attached to th tip part of the piston levers 2a and 2a of the air cylinders 2 and 2. The magnets 1 and 1 are made to attract both sides of an angle steel 10a respectively and the topmost stage angle steel of stacked angle steels is takes out. By rotating the bracket 4 during conveyance, the steel is distributed to a given position in a state that the tooth of the angle steel 10a is vertically erected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gripping device for an angle steel material having an L-shaped cross section (hereinafter referred to as "angle steel material"),
In particular, the present invention relates to an angle steel material gripping device suitable for a work of distributing stacked angle steel materials.

[0002]

2. Description of the Related Art Generally, a large number of angle steel materials are stacked in a flat posture with their respective ridges facing upward.
It is stored in this state. Then, when distributing the angle steel materials stacked in a flatbed state, conventionally, the angle steel materials are taken out one by one using a crane.

[0003]

By the way, conventionally, as described above, since the crane is used to remove the stacked angle steel materials, the waiting for the crane occurs,
There is a problem in that work efficiency is poor, and since each angle steel is gripped by using a crane and a clamp, it is difficult to automate and mechanize. Furthermore, when grabbing a very long angle steel material (about 12 m) and distributing it, the teeth of the angle steel material must be raised vertically, which takes time and is not very safe. There are also problems.

The present invention is intended to solve these problems, and a pair of magnets (electromagnets) symmetrically arranged at an angle of 90 ° are attracted to both side surfaces of the angle steel material to grip the angle steel material. To provide an angle steel material gripping device in which an angle steel material can be taken out by lifting a pair of magnets in this state and the teeth of the angle steel material can be vertically raised by rotating the pair of magnets. With the goal.

[0005]

In order to achieve the above-mentioned object, an angle steel material gripping device of the present invention comprises a base and a pivot arranged on the base parallel to the length direction of the angle steel. And a bracket rotatably attached to the base via the pivot and a mount attached to the lower end surface of the bracket, and a pair of brackets are provided at both ends of the mount with the pivot. The air cylinder mounting portions are symmetrically formed at an angle of 90 °, and the air cylinders are respectively attached to the pair of air cylinder mounting portions, and the piston rods thereof extend downward through the air cylinder mounting portions. The magnets are mounted so that they are symmetrically arranged at an angle of °, and the magnets whose front end surfaces are respectively attached to the attraction surfaces with respect to the side surfaces of the angle steel material are attached to the front end portions of the piston rods. There.

[0006]

In the above-described angle steel material gripping device of the present invention,
A pair of magnets symmetrically arranged at an angle of 90 ° are dropped on the ridgeline of angle steel materials stacked in a flatbed state, and the magnets are energized to attract the pair of magnets to both side surfaces of the angle steel materials. At this time, each magnet is pressed against both sides of the angle steel by the air cylinder,
Both magnets can be evenly attracted even if there is some play. After that, the pair of magnets can be lifted, and the pair of magnets themselves can be rotated while holding the angle steel material to vertically set the teeth of the angle steel material.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An angle steel material gripping device as an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the distribution equipment and FIGS. 2 and 3 are side sectional views thereof.

As shown in FIG. 1, a large number of angle steel materials 10
Are stacked on the substrate 20 in a flat posture with their ridges facing upward, in a state substantially parallel to a horizontal frame 6 described later. An angle steel material gripping device A is provided in order to take out one by one from the uppermost one and distribute it to a predetermined place. An auxiliary ticket "a" is added to distinguish the angle steel material adsorbed by the angle steel material gripping device from other stacked angle steel materials.

Reference numeral 6 indicates a horizontal frame to which the angle steel material gripping device A is attached.
A plurality of (four in this embodiment) angle steel material gripping devices A are attached to the. Reference numeral 11 denotes a pair of self-propelled angle steel material conveying machines that can move along the rails 9. A vertical frame 7 is attached to each self-propelled angle steel material carrier 11, and a screw rod 12 is vertically and rotatably attached to each frame 7. Further, a support body 13 screwed to each screw rod 12 is provided inside the frame body 7 so as to be vertically movable.

The left and right ends of the horizontal frame 6 are attached to the supports 13. Here, the pair of self-propelled angle steel material conveyors 11 and the horizontal frame 6 constitute a main part of the angle steel material distribution equipment B. Reference numeral 8 indicates a self-propelled roller. In addition, each self-propelled angle steel conveyor 11
Each of the screw rods 12 is provided with a rotation driving mechanism (not shown), and each rotation driving mechanism drives each screw rod 12 to rotate at the same speed in the same direction. It can be moved in the vertical direction along the frame body 7 while keeping the above.

Further, by rotating each self-propelled roller 8 of both self-propelled angle steel material conveying machines 11 in the same speed and in the same direction by a driving device (not shown), both self-propelled angle steel material conveying machines 11 can be moved laterally. The frame 6 can be moved along the rail 9 in the same direction at the same speed. Reference numeral 3 denotes a base of the angle steel material gripping device A, and the base 3 has a planar upper surface 3a (see FIG.
(See FIG. 3), the flat frame 6 is attached to the lower surface of the horizontal frame 6. On the base 3, parallel to the lengthwise direction of the horizontal frame 6,
Is provided.

A bracket 4 is rotatably attached to the base 3 via a pivot 4a, and in order to rotate the bracket 4, a rotation mechanism using a motor as a power source and a chain as a power transmission means (see FIG. (Not shown) is attached to the base 3. A mounting base 5 is fixed to the lower end surface of the bracket 4. A pair of air cylinder mounting portions 5 for mounting the air cylinders 2 on both side ends of the mounting base 5 with the pivot 4 interposed therebetween.
a and 5a are symmetrically formed at an angle of 90 °.

Then, both air cylinder mounting portions 5a,
5a, air cylinders 2, 2 have their respective piston rods 2a, 2a penetrating the respective air cylinder mounting portions and extend downward, and both piston rods 2a, 2a
Are mounted so that they are symmetrically arranged at a 90 ° angle. A pair of magnets (electromagnets) 1, 1 each having a tip end surface formed as an attraction surface for both side surfaces of the angle steel material 10 are attached to the tip end portions of the piston rods 2a, 2a of the air cylinders 2, 2, respectively.

In the above-mentioned structure, the horizontal frame 6 to which the angle steel material gripping device A is attached is lowered to lower the magnets 1 and 1 toward the ridges of the stacked angle steel materials 10 so that the magnets 1 and 1 are attached. Immediately before contacting both side surfaces of the uppermost angle steel material 10, the horizontal frame 6 is stopped from descending, compressed air is supplied to both air cylinders 2 and 2, and the magnets 1 and 1 are placed on both sides of the uppermost angle steel material 10. The magnets 1 and 1 are simultaneously energized by pressing them against the surfaces.

By this operation, the uppermost angle steel material 10
The magnets 1, 1 are attracted to both side surfaces of and the uppermost angle steel material is gripped by the angle steel material gripping device A (see FIG. 2). At this time, since the pair of magnets 1 and 1 are symmetrically arranged at an angle of 90 °, the magnets 1 and 1 are respectively fitted to both side surfaces of the angle steel material.

Further, since the magnets 1 and 1 are separately pressed against the respective side surfaces on both sides of the angle steel material by the respective air cylinders 2 and 2, the angle steel material gripping device A is slightly different from the angle steel material 10. Even if they are misaligned, the stroke of one of the air cylinders is slightly larger than the stroke of the other air cylinder,
The magnets 1 and 1 can be attracted to both sides of the angle steel material.

Next, by rotating each of the screw rods 12 and 12 to move the horizontal frame 6 upward, the angle steel material 10a is lifted (the state shown in FIG. 1) while the rotation mechanism provided on the base 3 is rotated. The bracket 4 is actuated to rotate, and the angle steel material 10a is set in a state in which the angle teeth are vertically erected (see FIG. 3). Then, both of the self-propelled angle steel material transporters 11 and 11 are moved to transport the angle steel material 10a to a predetermined position, and the horizontal frame 6 is lowered to move the angle steel material.
It is possible to perform the material distribution with the teeth of the angle 10a standing vertically.

Needless to say, in the above operation, all of the four angle steel material gripping devices A attached to the lateral frame 6 are controlled so as to perform the same operation at the same time. It is also possible to program the above-mentioned series of operations and automatically perform them. In this way, the distribution of angle steel can be completely mechanized and automated.

[0019]

As described in detail above, according to the angle steel material gripping device of the present invention, the following effects and advantages can be obtained. (1) It is possible to mechanize and automate the angle steel material distribution work that was conventionally performed manually. (2) The use of a crane is unnecessary and work efficiency can be improved. (3) Since manpower is not needed, it becomes unnecessary to carry heavy objects,
Workability and safety are improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an angle steel material gripping device as one embodiment of the present invention together with distribution equipment.

FIG. 2 is a sectional view of the same side.

FIG. 3 is a side sectional view showing a state in which the teeth of the same angle steel material are vertically stood.

[Explanation of symbols]

 1 magnet (electromagnet) 2 air cylinder 2a air cylinder piston rod 3 base 4 bracket 4a pivot 5 mounting base 5a air cylinder mounting part 6 horizontal frame 7 frame 8 self-propelled roller 9 rail 10, 10a angle steel 11 self-propelled Type Angle Steel Material Conveyor 12 Screw Rod 13 Support A Angle Steel Grasping Device B Angle Steel Material Distribution Equipment

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ikuo Ota 6-16-1 Hinoshima Enoura-cho, Hikoshima, Shimonoseki City Mitsubishi Heavy Industries Ltd. Shimonoseki Shipyard

Claims (1)

[Claims] 1. An angle steel gripping device, a base, a pivot arranged on the base parallel to the length direction of the angle steel, and rotatable to the base via the pivot. And a mounting base mounted on the lower end surface of the bracket, and a pair of air cylinder mounting parts are symmetrically formed at an angle of 90 ° on both ends of the mounting base with the above-mentioned pivot axis. Air cylinders are respectively attached to the pair of air cylinder mounting portions so that their respective piston rods extend downward through the respective air cylinder mounting portions and are arranged symmetrically at an angle of 90 °. An angle steel material gripping device, wherein a magnet whose front end surface is formed as an attraction surface for the side surface of the angle steel material is attached to the tip end portion of each piston rod.