JPH05186050A - Suspension transfer device of panel material - Google Patents

Abstract

PURPOSE:To speedily take a fall countermeasure and a measure to change an up-stroke of a lifter by detecting existence of adhesion and thickness of an ALC panel in the state of suspending a panel material at the time of suspen sion transfer of the panel material stacked in a large number. CONSTITUTION:A large number of stacked horizontal panel materials 1 is sequentially lifted up by a lifter 2 and the panel material 1 on the top part is suspended and transferred. A lift mechanism 6 of a clamp 9 to hold edge surfaces of the panel material 1 facing each other and a travel mechanism 7 are provided, a mechanism 11 to detect the number of suspended pieces of the panel materials 1 by a tracer attached to a holding up in the state where a guide rod falling interlocked with the lift mechanism 6 of the lifter 2 makes contact with the upper surface of the panel material 1, a position sensor 37 detects that the lifter 2 reaches a desired position and stops the lifter 2 at the desired position. Consequently, malfunction and delay of detection timing are eliminated, and it is possible to adopt a speedy fall contermeasure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for hoisting and transferring plate materials such as a large number of lightweight foam concrete plates (hereinafter referred to as ALC plates) which are stacked.

[0002]

2. Description of the Related Art Conventionally, for example, when a large number of ALC plates stacked on a table lifter are lifted one by one and transferred to another place, a device as shown in FIG. 1 is used.
The facing edge faces of the stacked uppermost plate materials 1 are gripped by the clamps 9 and lifted and transferred, and at the same time, the operation of raising the table lifter 2 by the thickness of the ALC plate is repeated.

[0003]

However, in such an apparatus, when the ALC plate is grasped and lifted, the ALC plate existing under the ALC plate to be lifted may adhere to the device. In this case, the adhered ALC plate may drop during the transfer, or may cause problems such as contact with peripheral devices to damage the ALC plate or the device. As a method of examining the presence or absence of this adhesion, there are optical means such as a photoelectric tube and electric means by using a limit switch.However, the former may cause malfunction due to the generation of water vapor or dust, and the latter may cause a malfunction during transfer. Since the detection is performed, the time for taking countermeasures is delayed and the effect is small. Further, the ascending stroke of the table lifter must be set according to the thickness of the ALC plate, and since the thickness often changes depending on the lot, there is a problem that setting the stroke takes time.

According to the present invention, when a plate material, particularly an ALC plate is suspended and transferred, the presence or absence of adhesion and the thickness of the plate material are detected in a suspended state of the plate material to prevent a drop from falling and a lifter to rise. It is an object of the present invention to provide a device capable of promptly taking stroke changing measures.

[0005]

Means for Solving the Problems The present invention for achieving the above object is an apparatus for sequentially moving a large number of horizontal plate materials by a lifter and lifting and transferring the uppermost plate material, A clamp for gripping the facing small surface of the plate material, an elevating mechanism and a traveling mechanism of the clamp,
A lifting and transferring device for a plate material, which is provided with a mechanism for detecting the number of hoisted plates by a stylus attached to a gripping part of the plate material, and a guide rod lowered in conjunction with the lifting mechanism of a lifter in the device. Is provided with a control mechanism that raises the lifter in contact with the upper surface of the plate material, detects that the position sensor has reached a desired position and stops the lifter at the position.

[0006]

As described above, according to the present invention, in a device for sequentially hoisting and transporting a large number of stacked plate materials by a lifter, the presence or absence of other plate materials is detected by a stylus attached to a grip portion of the plate material. And a mechanism for detecting the position of the guide rod engaged with the gripping portion of the plate material that has descended in conjunction with the lifting mechanism of the device, and is provided with a control mechanism that determines the stroke of the lifter. There are no malfunctions or deviations in detection timing during operation. As a result, it is possible to properly prevent damage to the plate material or damage to the device due to the fall of the adhered plate material. Moreover, since the stroke of the lifter can be automatically set, labor can be saved.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway front view of the device of the present invention. FIG. 2 is a front view showing a mechanism for detecting the position of the plate material in the device of the present invention.

The main parts of this apparatus are a mechanism for gripping the facing edge of the plate material, an elevating mechanism for raising and lowering the gripping mechanism, a traveling mechanism for transferring the plate material lifted by the gripping mechanism to a predetermined position, and a lifting mechanism. It is composed of a traverser 3 provided with a mechanism for checking the number of plates and a mechanism for detecting the thickness of plates, and a lifter 2 for placing the plates on the upper surface and sequentially pushing them up.

The gripping mechanism of the traverser 3 pivotally supports a horizontal shaft 12 on the lower surface of a frame-shaped clamp frame 8, and the bases 16 of a pair of clamps 9 for gripping the fore edge surface of the plate material respectively facing the horizontal shaft 12. Is slidably mounted. Further, one end of a rack 15 is fixed to the base 16 of the clamp 9 in parallel with the shaft 12, and a pinion that meshes with both racks 15 is arranged between them, and is attached to the clamp frame 8. Both clamps 9 are opened and closed by rotating the provided hydraulic rotary actuator 13 in the forward and reverse directions to grip the edge of the plate material.

Further, an air cylinder 11 for confirming the number of hoisting plate materials is slantedly arranged at the base of one clamp 9, and the traverser 3 is clamped by the clamp 9.
When the plate material is gripped and lifted by, the air cylinder 11 is operated to lift only one plate material, and the cylinder rod is fully extended. It is designed to detect and output a signal. When there are two or more plates to be lifted, the cylinder rod does not fully extend and stops halfway, so this condition is detected and the alarm buzzer is activated.

The mechanism for detecting the position of the plate material is, as shown in FIG. 2, an air cylinder 31 and a detection fitting 36 on the base.
A guide bearing 34, which slidably supports the air cylinder 31 and the guide rod 35, is connected so that the guide rod 35 to which is fixed is parallel to the guide rod 35.
Further, the cylinder rod 32 and the tip end portion of the guide bearing 35 are connected by a contact plate 33. Therefore, when the air cylinder 31 is expanded and contracted, the cylinder rod 32 and the detection fitting 36 of the guide rod 35 are moved in parallel forward and backward. Further, a desired number (five in the figure) of proximity switches 37 are arranged at a position parallel to the guide rod 35 and close to the detection fittings 36 corresponding to the thickness of the plate material, so that the detection fittings 36 can be easily approached. It can be detected.

In the lifting mechanism of the gripping mechanism, two pairs of lifting air cylinders 6 are attached between the upper surface of the clamp frame 8 and the traveling carriage 7, and the clamp cylinder 8 is expanded and contracted to expand and contract. Is designed to go up and down.

In the traveling mechanism, wheels 19 pivotally supported at the four corners of the traveling carriage 7 are rotatably moved horizontally along a pair of rails 18 laid on the frame 17 so that the carriage 7 can travel freely. Servo motor 2 fixed to
By rotating the wheel 19 through the zero sprocket 21 and the chain 22, the vehicle can be moved forward and backward by a desired distance.

On the horizontal upper surface of the lifter 2, four rotatable rollers 23 are rotatably supported so that the pallet 5 carrying the plate material 1 can be placed thereon. Further, a pantograph 25 and a hydraulic cylinder 26, which are attached to the base 24, are arranged to be movable up and down on the bottom surface.

Next, the operation of the apparatus of the present invention constructed as above will be described. When the pallet 5 on which a large number of plate materials 1 are horizontally mounted is conveyed by the roller conveyor 27 adjacent to the lifter 2 and is transferred to the lifter 2, the lift cylinder 6 and the air cylinder 31 of the traverser 3 waiting above are transferred. Is operated and the clamp frame 8 and the contact plate 33 are lowered. Next, the hydraulic cylinder 26 of the lifter 2 is actuated, the plate material 1 rises while pushing up the contact plate 33, and when the previously designated proximity switch 37 detects the approach of the detection fitting 36, the hydraulic cylinder 26 is stopped. Then, the rotary actuator 13 of the clamp 9 is started, the plate material 1 is gripped by the clamp 9, and when the limit switch (not shown) is operated, it stops. Then, the lifting cylinder 6 is actuated again to raise the clamp frame 8 and the air cylinder 11 is actuated. When it is confirmed that only one plate material is lifted, the servo motor 20 is started and the traveling carriage 7 is It moves to the left in FIG. 1 and stops on the conveyor 4. Next, the elevating cylinder 6 operates to lower the clamp frame 8, and subsequently the rotary actuator 13 of the clamp 9 is started to place the plate material 1 gripped by the clamp 9 on the conveyor 4 in an open state. After that, the clamp frame 8 is raised and the work is completed. By repeating this operation, the plate materials stacked on the pallet 5 can be sequentially transferred.

If two or more suspended plate materials are attached, the mechanism for checking the number of suspended plate materials issues an alarm and the traverser 3 stops its operation. Just restart.

[0017]

As described above, according to the present invention, a large number of horizontal plate materials, such as ALC plates, are successively lifted by the lifter, and the uppermost plate material is suspended and transferred. In a device for transferring the plate material to a predetermined place, a position sensor detects the position of a guide rod that interlocks with a mechanism that detects the adhesion of another plate material by a stylus attached to a grip portion of the plate material. Since a control mechanism that detects and determines the lifting stroke of the lifter is provided, malfunctions and detection timing delays are eliminated, and as a result, quick drop countermeasures can be taken, and due to the fall of the adhered plate material during operation. Damage to the plate material and damage to the equipment are appropriately prevented, and the lifting stroke of the lifter is automatically determined, resulting in a great labor saving effect.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a plate material lifting and transferring apparatus of the present invention.

FIG. 2 is a front view of a mechanism for detecting the position of the plate material in the plate material lifting and transferring apparatus of the present invention.

[Explanation of symbols]

 1 Plate Material 2 Lifter 3 Traverser 4 Conveyor 5 Pallet 6 Lifting Cylinder 7 Traveling Cart 8 Clamp Frame 9 Clamp 11 Air Cylinder 12 Shaft 13 Rotary Actuator 15 Rack 16 Base 19 Wheel 20 Servo Motor 22 Chien 23 Roller 24 Base 25 Cylinder Pantograph 26 27 Roller Conveyor 30 Plate Material Position Detection Mechanism 31 Air Cylinder 32 Cylinder Rod 33 Plate Material Cover Plate 34 Guide Bearing 36 Detection Metal Fitting 37 Proximity Switch

Claims (2)

[Claims] 1. A device for lifting a plurality of horizontal plate materials sequentially lifted by a lifter and lifting and transferring the uppermost plate material, and a clamp for gripping the facing edge faces of the plate material, and the clamp. The plate material hoisting and transferring device, which is provided with an elevating mechanism and a traveling mechanism, and a mechanism for detecting the number of hoisted sheets by a stylus attached to a grip portion of the plate material. 2. The lifter is moved up in a state where the lowered guide rod is brought into contact with the upper surface of the plate material in conjunction with the lifter lifting mechanism, and the position sensor detects that the desired position has been reached and moves the lifter to that position. The plate material lifting and transferring apparatus according to claim 1, further comprising a control mechanism for stopping the plate material.