JPH0632441A - Turn-over device for heavy article - Google Patents

Abstract

PURPOSE:To provide a turn-over device which can surely and safely turn over a heavy article in a simple manner by providing a conveyor which interposes an arm rotatably driven up and down, a turn-over chain rotatably driven and a chain receiver housing a part of the turn-over chain between a carried body and the conveyor. CONSTITUTION:A turn-over chain 5 is rotated by a chain drive motor 10 and a chain driving sprocket wheel 4 for lowering the turn-over chain 5 over a roller conveyor, so that the turn-over chain is thereby housed in a chain receiver 12 provided between rollers 11. A H shaped steel 6 is carried in the turn-over chain 5 by a roller conveyor 7 so as to be inserted through up to its center section. An arm 2 is then raised up with the H shape steel 6 is then hoisted up by the turn-over chain 5. Next, the turn-over chain 5 is rotated by a chain drive motor 10, so that the H shape steel 6 is rotated around its own axis in the longer direction so as to be turned over. After it has been turned over, the H shaped steel 6 is placed on the roller conveyor 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for reversing a heavy steel such as an H-shaped steel and a square steel pipe.

[0002]

2. Description of the Related Art For example, an H-shaped steel used in steel frame construction or the like is pre-grooved in a factory for welding. The groove processing in this case is processing for cutting the upper and lower ends of one end of the H-shaped steel to form a weld overlay portion.

As described above, in the case of processing a heavy object with a cutting machine such as a groove processing for H-shaped steel,
When one of the upper and lower parts of the heavy object was processed, it had to be turned upside down and set in the processing device. Conventionally, as a method of reversing such a heavy object, there has been adopted a means of hanging a wire on the heavy object or grasping it with a clamp or the like, temporarily suspending it with an overhead crane or the like, and reversing it upside down when lowering it. Was there. Of course, in the case of groove processing, there is a dedicated machine for that, and there is also a machine that can process up and down at the same time, but in that case it takes time and effort to set the size of heavy objects and cutting angle, and it also processes one side It is extremely expensive as compared with the ones, and in most cases, it is the current situation that after processing one side, the heavy object to be processed is inverted and processed.

[0004]

However, when reversing a heavy object using a crane or the like, it takes a lot of time and effort to hang wires and to attach and detach the clamps. Further, even if a heavy object is hoisted by a crane, it is necessary to rely on humans to turn it upside down, and it is not safe because it is a heavy object. For this reason, there has been a widespread demand in the industry for a reversing device capable of reversing a heavy object simply, reliably and safely.

[0005]

Therefore, the present inventor has achieved the present invention as a result of earnest research in view of the above problems, and is characterized in that a sprocket wheel is provided on the free end side. Arm that is driven to rotate up and down,
A reversing chain that suspends a heavy object and is rotatably driven by being hung on the sprocket wheel, and a chain receiver that is provided at a lower portion of the arm and accommodates a part of the reversing chain of the carrier. It consists of a conveyor for placing and transporting heavy objects interposed between them.

As used herein, the term "heavy load" refers to an iron frame material such as an H-shaped steel or a rectangular steel pipe used in steel-framed construction, and has a shape that does not easily turn upside down and is heavy. Say something. In this case, for example, it is necessary to process the upper and lower parts or side parts of a heavy object with a processing device such as a groove cutting machine, and it is necessary to reverse and set according to the processing device. Inversion in this case is usually 1
It is to rotate up and down by turning 80 degrees,
This includes the case of turning it by 0 ° and tilting it sideways or tilting it at an angle.

The "arm" is a member which is provided on the machine base and whose tip portion rotates up and down. A suspension sprocket wheel is provided on the free end side of the arm, and a reversing chain is hung on the sprocket wheel for hanging to vertically move the reversing chain. An electric motor is generally used as a drive source for rotating the arm up and down, but a hydraulic motor, a hydraulic cylinder, or a pneumatic cylinder may be used as the drive source.

The "reversing chain" is a chain that hangs a heavy object and rotates it to invert the heavy object. The heavy object is suspended by an arm, and the rotation of the chain is driven by a chain drive motor. It is preferable that the sprocket wheel for driving the chain is provided near the base of the arm so that the chain spreads when the arm is lowered substantially horizontally.However, the sprocket wheel for suspension installed at the tip of the arm is preferable. May be used as a chain drive sprocket wheel.

The "conveyor" is for placing and transporting a heavy load, and is provided at the lower part of the arm to transport the heavy load and insert it into the inversion chain. The structure of the conveyor is not particularly limited, but a structure in which a part of the chain can be housed between the conveyers of the conveyor in order to insert a heavy object into the chain is preferable. For example, the conveyor is a roller conveyor, and a chain receiver is provided between the rollers. The chain receiver is placed between the conveyors to receive the inversion chain that descends as the arm descends.The chain receiver is supported so that it does not interfere with the transportation of heavy objects by the conveyor. It is something to keep. Therefore, the chain receiver does not need to be positively provided if the distance between the rollers is large and the rotation of the rollers is not affected even when the chain descends on the conveyor. However, in the present invention, since a part of the chain is moved up and down so as to traverse the conveying surface of the conveyer of the conveyor, the portion where the chain passes between the conveyers is called a chain receiver for accommodating the chain. And Further, the concept of interposing the chain receiver between the conveyors also includes the case where two conveyors are arranged in series and the abutting portion is a chain receiver. Therefore, a chain conveyor or the like in which the carrier itself moves can also be used as the conveyor.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

FIG. 1 and FIG. 2 show an embodiment of a heavy object reversing device 1 according to the present invention, in which an arm 2 which is driven to rotate up and down and a tip portion of the arm 2 are provided. A sprocket wheel 3 for hanging and a reversing chain 5 laid over a chain driving sprocket wheel 4 provided at a side portion of the base of the arm 2 and a roller for placing and transporting a heavy H-shaped steel 6 It is composed of the conveyor 7.

The arm 2 is rotatably provided on an upper portion of a machine base 8 and is vertically rotated by an arm driving motor 9.
The reversing chain 5 is driven to rotate by the chain driving sprocket wheel 4 driven by the chain driving motor 10. When the arm 2 is rotated to the position shown by the chain line, the reversing chain 5 descends onto the roller conveyor 7 and is stored in the chain receiver 12 provided between the rollers 11 of the roller conveyor 7. At this time, the reversing chain 5 is spread in a substantially square shape as shown by the chain line. Then, the roller conveyor 7 conveys the H-shaped steel 6 into the reversing chain 5 up to the center thereof. In this state, the arm 2 is raised to suspend the H-shaped steel 6 by the inversion chain 5. Next, the reversing chain 5 is rotated by the chain driving motor 10 so that the H-shaped steel 6 rotates about its longitudinal direction as an axis and can be reversed. After reversing, the arm 2 need only be lowered until the H-shaped steel 6 is placed on the roller conveyor 7.

When the reversing device 1 is used as shown in FIG. 3, the reversing device 1 is installed at the rear of a groove cutting machine 13 which is a cutting device for H-shaped steel 6. H-section steel to be processed 6
Is placed on the roller 14 provided on the groove cutting machine 13 and the roller conveyor 7 of the reversing device 1. The H-section steel 6 whose one side is cut by the groove cutting machine 13 is moved until the central portion thereof is located in the reversing device 1 as described above.
At that position, the arm 2 is raised to suspend the H-shaped steel 6 by the reversing chain 5, and the reversing chain 5 is rotated to rotate the H-shaped steel 6 by 180 °. Then, the arm 2 is lowered, the H-shaped steel 6 is placed on the roller conveyor 7, and the H-shaped steel 6 is fed again to the groove cutting machine 13 to machine the other one side.

[0014]

As described above, in the heavy object reversing device according to the present invention, the chain is hung on the vertically moving arm, and the heavy object is rotated while being suspended.
Since it has a structure for reversing a heavy object, the structure is simple and the reversing operation is extremely easy. In addition, since a conveyor for conveying heavy goods is incorporated, the operation of attaching and detaching heavy goods to and from the apparatus is facilitated, and it has an extremely excellent effect in terms of safety in handling heavy goods.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a reversing device according to the present invention.

FIG. 2 is a front view of the reversing device shown in FIG.

FIG. 3 is a plan view showing an example of a usage state of the reversing device of the present invention.

[Explanation of symbols]

 1 Inversion device 2 Arm 3 Sprocket wheel for suspension 4 Sprocket wheel for chain drive 5 Chain for inversion 6 H-shaped steel 7 Roller conveyor 8 Machine stand 9 Arm drive motor 10 Chain drive motor 11 Roller 12 Chain receiver 13 Bevel cutting machine 14 Laura

Claims (1)

[Claims] 1. An arm provided with a sprocket wheel on a free end side thereof and pivotally driven up and down, and a reversing chain for suspending a heavy object and rotatably driven by being hung on the sprocket wheel. A reversal of heavy goods, characterized in that it comprises a conveyor for placing and carrying heavy goods with a chain receiver provided below the arm for accommodating a part of the reversing chain interposed between conveyance bodies. apparatus.