JPH0326655A - Piling device - Google Patents

Abstract

PURPOSE:To prevent misspiling by providing a receiving bed which temporarily receives a blank material, conveyed by a conveyer, in a horizontal attitude in a loading position while drops the temporarily received blank material by its own weight into a box by retracting action from the loading position. CONSTITUTION:A blank material W is conveyed by a conveyer 32 from a direction B, input onto a pair of receiving beds and placed in a horizontal attitude. Here the receiving bed 4 is still maintained in a horizontal condition as in the past by weight of a weight 9. Thus loading the two to three sheets of blank materials W on the receiving bed 4, when weight acting thereon exceeds the weight of the weight 9, the receiving bed 4 is rotated in the direction of an arrow head a2 with a rotary shaft 5 serving as the center. By temporarily rotating the receiving bed 4 to a retracting position P2 of its vertical attitude, the several sheets of blank materials W, loaded up to that time, are dropped, with the attitude left as almost in a horizontal attitude, by the own weight toward the bottom part of a piling box 1 and piled, simultaneously the receiving bed 4 is reset to a loading position P1.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a piling device for a planking press line, and more particularly to a piling device for stacking blanks cut by a planking press machine in multiple stages.

2. Description of the Related Art A piling device of this type has a structure shown in FIG. 6, for example.

This piling device transports a blank material W cut by a planking press machine 31, for example, by a belt conveyor 32, and inserts it into a piling box 33, which is placed on standby in advance below the end of the belt conveyor 32, so that it falls under its own weight. As shown in FIG. 7, the blank materials W are stacked in multiple stages inside the piling box 33.

Problems to be Solved by the Invention In the conventional piling device, as shown in FIGS. 6 and 7, the blank material W in the piling box 33 is
Blank material W is placed on top of it according to the stacking height of
The throwing attitude angle θ will change. As a result, especially when the stacking height in the piling box 33 is small, the blank material W inserted as shown in the imaginary line in FIG.
is reversed and becomes a piling box. It may not fit properly into the box 33, causing mispiling. When mis-piling occurs, the press machine 31 must be stopped and the operator must carry out recovery work each time, resulting in a decrease in the operating rate of the press line.

The present invention was made in view of the above problems.
To provide a piling device which prevents mispiling by keeping the charging attitude angle of blank materials constant regardless of the stacking height in a piling box.

Means for Solving the Problems The present invention, as described above, allows a blank material cut by a press machine and transported by a conveyor to fall under its own weight into a piling box located below the end of the conveyor. In a piling device in which blank materials are stacked in multiple stages within a piling box, the blank materials are movable between a placement position protruding into the piling box and a retracted position retracted from within the piling box, and are conveyed by the conveyor. A cradle is provided at the upper end of the piling box to temporarily receive the blank material in a horizontal position at the mounting position, and drop the temporarily received blank material into the piling box by its own weight by retreating from the mounting position. It is characterized by

Methods of displacing the pedestal between the loading position and the retracted position include a method of displacing the pedestal using the weight of a blank placed on the cradle, and a method of directly moving the pedestal using an actuator. It is also possible to use a method of displacement.

Function: According to the above structure, the blank material conveyed by the conveyor is loaded onto the cradle at a predetermined loading attitude angle, and is temporarily placed on the cradle in a horizontal attitude. . When the pedestal is withdrawn from the piling box at a predetermined timing, the blanks fall under their own weight toward the bottom of the piling box and are stacked.

Therefore, even if the stacking height of the blanks in the piling box gradually increases, the relative positional relationship between the receiver (at the loading position) and the conveyor remains unchanged when the blanks are loaded. The charging attitude angle is always constant, which prevents mispiling from occurring as in the past.

Embodiment FIGS. 1 to 3 are diagrams showing a more specific embodiment of the present invention, and parts common to the conventional example are given the same reference numerals.

As shown in FIGS. 1 to 3, rectangular openings 3 are formed in a pair of side walls 2, 2 parallel to the conveyor conveyance direction in the piling box l located below the terminal end of the belt conveyor 32. A horizontal pedestal 4 is placed in this opening 3, with its tip facing into the piling box 1. A rotating shaft 5 is integrally fixed to the lower surface of the pedestal 4, and both ends of the rotating shaft 5 are connected to brackets 6 on the side wall 2.
is supported by As a result, the pedestal 4 rotates around the rotating shaft 5 as indicated by the arrow al. It is rotatable in the a2 direction.

A stopper 7 is integrally fixed to the rotating shaft 5, and a weight 9 is connected to the stopper 7 via a hinge pin 8.
are rotatably connected. A rotation urging force in the direction of arrow a1 is applied to the pedestal 4 by the weight of the weight 9, and when the pedestal 4 is in a horizontal state as shown in FIG. This contact restricts the rotation limit position of the cradle 4 in the direction of the arrow a1. On the other hand, the rotation limit position of the pedestal 4 in the direction of arrow a2 is regulated by the contact between the upper end 7b of the stopper 7 and the side wall 2 in a vertical position as shown in FIG.

In other words, the pedestal 4 is in a horizontal position as shown in FIG.
It is possible to rotate and displace between a retracted position P2 which is retracted from inside the piling box l in a vertical position as shown in the figure.

In the piling device configured in this way, if it is assumed that the blank material W is not placed on the pedestal 4 shown in FIG. It is waiting at position P1.

Then, when the blank material W is conveyed from the direction of arrow B by the belt conveyor 32, the blank material W is placed onto the pair of pedestals 4 and placed on the pedestals 4 in a horizontal position. At this time, the pedestal 4 still maintains its previous horizontal state due to the weight of the weight 9.

Place two or three blank materials W on the pedestal 4 as described above.
When the weight acting on the pedestal 4 exceeds the weight of the weight 9, the pedestal 4 moves in the direction of arrow a around the rotating shaft 5.
Rotates in two directions. Then, as shown in FIG. 4, the pedestal 4 temporarily rotates to the retracted position P2 in a vertical position, so that the several blanks W that had been placed on the pedestal 4 remain in an almost horizontal position. Piling box l
It falls under its own weight towards the bottom and is piled up.

At the same time, the pedestal 4, which has become unloaded due to the falling weight of the blank material W, returns to the horizontal placement position PI as shown in Figure 1 due to the weight of the weight 9, and thereafter repeats the same operation as above. become.

The blanks W are sequentially stacked in the piling box 1 by rotationally displacing the receiving table 4 once for two to three blanks W sent out from the conveyor belt 32. And piling box 1
Regardless of the change in the stacking height of the blank materials W in the stack, the attitude angle of the blank materials W from the belt conveyor 32 onto the receiving table 4 is almost constant, so that the blank materials W can be reversed as in the conventional method. Mispiling does not occur.

FIG. 5 is a diagram showing another embodiment of the present invention, in which the pedestal 14 is moved between the loading position Pl and the retracted position P2 in synchronization with the press cycle of the planking press machine 3l. It is configured to move forward and backward using an air cylinder 10. For example, when the number of blank materials W loaded on the cradle 14 reaches 2 to 3, the cradle 1
4, the same effects as in the first embodiment can be obtained.

Effects of the Invention As described above, according to the present invention, it is possible to move between the loading position and the retracted position. In addition, the receiver temporarily receives the blanks conveyed by the conveyor in a horizontal position at the loading position, and allows the temporarily received blanks to fall under their own weight into the piling box by retreating from the loading position. By providing this at the upper end of the piling box, the attitude angle at which the blanks are fed from the conveyor to the receiving tray is almost constant regardless of the loading height in the piling box, making it possible to reduce the loading angle of the blanks from the conveyor to the receiving tray. Mispiling due to reversal, etc. can be prevented. As a result, there is no longer a need for recovery work that would have required stopping the press machine each time a mispiling occurs, reducing loss time and contributing to improved operating rates.

[Brief explanation of drawings]

FIG. 1 is a diagram showing one embodiment of the piling device of the present invention, and is a sectional view taken along the line A-A in FIG. 2, FIG. 2 is a plan explanatory diagram of the piling device, and FIG. FIG. 4 is an operational explanatory diagram showing a state in which the cradle is retracted from the state shown in FIG. 1, FIG. 5 is a cross-sectional explanatory diagram showing another embodiment of the present invention, and FIGS. 6 and 7 is an explanatory diagram of the operation of a conventional piling device. l... Piling box, 2... Side wall part, 4...
・Case, 5... Rotating shaft, 7... Stopper, 9.
... Weight, lO ... Air cylinder, 14 ... Rest, 31 ... Planking press machine, 32 ...
・Belt conveyor, PI...Placement position, P2...Retreat position, W...Blank material. Figure 1 1: Node Irisikku 1νx2:! II wall removal 4: Blame right 5: Times H*Y 7: Stotno V19: Weight P1: Placement A31 Ien [W: Furashikune Sai Figure 4 Figure 5 Figure 7

Claims (1)

[Claims] (1) In a piling device in which blanks cut by a press machine and transported by a conveyor are allowed to fall under their own weight into a piling box located below the end of the conveyor, and are stacked in multiple stages within the piling box. , is movable between a loading position protruding into the piling box and a retracted position retracted from the piling box, and the blank material conveyed by the conveyor is temporarily held in a horizontal position at the loading position. A piling device characterized in that a receiving table is provided at the upper end of the piling box to allow the temporarily received blank material to fall under its own weight into the piling box by an evacuation operation from a loading position while receiving the blank material.