JPS63112362A - Unloading and piling method for board like object - Google Patents

Abstract

PURPOSE:To prevent the generation of an end part flaw on a unloaded and piled board like object by decelerating the speed of sending said board like object into a piler by means of a send-in means to piler, from a speed synchronized with the conveying speed of a conveying conveyor to a speed at which a flaw is not generated at the time of unloading and piling said board like object. CONSTITUTION:At the point of time when the conveyance of regular-size board like objects 3 from a shear 1 to a line is started, the high speed rotation of a pinch roller 6 synchronized with the conveying speed is started. And, the board like object 3 is received by the pinch roller 6 and sent into a piler 5 and, after its rear end passed through a sensor 8, a defined time is measured by a counter, to decelerate the rotation of the pinch roller 6. After the board like object 3 is unloaded and piled on a piler 5, the pinch roller 6 is returned to the high speed rotation in line with the arrival of the following board like object 3 by means of a pulse signal. Due to this rotation control of the pinch roller 6, a shock caused by the transferring inertia of the board like object 3 to a stopper 9 can be reduced and controlled to the extent that an end part flaw is not generated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to piling, or piling, of high-grade sheet products such as stainless steel sheets and plywood sheets.

[Conventional technology]

As a piling method for such plate-shaped materials, for example,
Steel Handbook, 3rd edition published on May 15, 2015 ■(1) Figures 7 and 14
As shown in 9, this is a means for feeding the plate-like material that has left the line shear to a piler by a conveyor. The method of transporting the material to a pinch roller, then sandwiching it between the pinch rollers and stacking it on a piler, and the method of
As described in Publication No. 468, a vacuum conveyor is placed at the rear end of the conveyor instead of a pinch roller as a feeding means to the piler, and the plate-like object is sucked to the underside of the conveyor and conveyed to a predetermined position in the piler. There is a method in which the suction is released at the point where the material is loaded.

In recent years, in both methods, in order to increase the processing efficiency for stacking plate-shaped objects, the cutting speed by the jar and the conveyance speed by the conveyor have been increased, and the speed at which the plate-shaped objects are fed into the piler is increased. Speed is 150-200+
A/win has been achieved. Therefore, the front end of the plate-like object is likely to be damaged by the impact of the plate-like object colliding with the piler, especially the stopper attached to the tip of the piler, due to the inertia of conveyance.

As a countermeasure for this, the stopper attached to the piler has a spring structure, a shock absorbing material is provided on the contact surface, and as described in the above publication, a pan full plate is installed above the piler to make it more natural. The transport speed of the plate-shaped object is reduced during the fall to soften the impact of the collision with the piler and prevent damage.

[Problems to be Solved by the Invention] However, simply providing a stopper with a shock absorbing means is insufficient to prevent the occurrence of scratches on the tip of a plate-like object that is fed at high speed. In addition, in the method of slowing down with a panful plate, the initial speed of feeding the plate-like material into the piler is not reduced, so there is a limit to the degree of deceleration, and there is a risk of damage caused by the impact during feeding. It is not possible to slow down the rate to completely eliminate the occurrence.

The purpose of the present invention is to provide a continuous stacking method for plate-like objects in which long objects are continuously cut into regular lengths by jars and stacked on pilers, without any reduction in processing efficiency. It is an object of the present invention to provide a method for preventing the occurrence of leading edges of stacked plate-like objects.

[Means for solving problems]

In the present invention, even if the plate-like material is plywood or stainless steel, the loading speed to the piler is usually 20 m/win.
Based on experimental findings that if the tip of the plate-shaped object hits the stopper for temporary alignment, there will be no scratches due to impact, and the tip can be converged with the tip completely aligned. A simple and reliable method to decelerate
This is a completed control method for loading cargo.

Specifically, in a plate piling device that has a conveyor following the shear and a piler placed after the conveyor, a feeding means to the piler is provided between the conveyor and the piler, and the conveyor In a method for loading plate-like objects in which the plate-like objects are received from a conveyor to a feeding means at a speed synchronized with the conveyance speed of the conveyor, the passage of the conveyed plate-like object is confirmed before the feeding means. A means is provided, and by checking the passage of the plate-like object by the passage confirmation means, the speed at which the plate-like object is fed into the piler by the feeding means to the piler is adjusted to a speed synchronized with the conveyance speed of the conveyor. 20a+, which does not cause scratches when
/mtn or less to load the plate-like material onto the piler, and after this loading, the receiving speed of the plate-like material from the transport conveyor of the feeding means for the next transferred plate-like material is determined as the transport speed of the conveyor. This is a stacking method in which the plate-like object is received by returning to a speed synchronized with that of the plate-like object, and after the passage of the plate-like object is confirmed by the passage confirmation means, deceleration control of the feeding speed of the feeding means to the piler is repeated.

This piling method can be applied to either the conventional pinch roll type or vacuum conveyance method.

The present invention will be described below with reference to an embodiment in which a pinch roller is used as a feeding means to a piler.

〔Example〕

FIG. 1 shows an example in which the present invention is applied to a system in which a plate-shaped object is introduced into a piler using a pinch roller.

In the figure, 1 indicates a long object 2 brought into the processing line.
This shows a shear for cutting to length.

The plate-like material 3 cut into a fixed length by the shear 1 is transported at high speed by a transport conveyor 4 to the position of a pinch roller 6, which is a feeding device disposed in front of a piler 5. Immediately in front of the guide roller rough arranged in front of the pinch roller 6, a sensor 8, which is a means for checking the passage of the plate-like object 3, is provided. Further, reference numeral 9 denotes a stopper for adjusting the tip of the stacking plate-like object 3 arranged at the tip of the piler 5, and a stopper 9 is provided in front of the stopper to reduce the impact when colliding with the stacking plate-like object 3. , shock absorbing material such as soft rubber 1
0 is set. Further, reference numeral 11 denotes a blower that blows out air to lift the plate-like object 3 in order to smoothly stack the plate-like object 3 when it is transferred from the pinch roller 6 to the piler 5.

In the piling apparatus shown in FIG. 1, a plate-like object 3 of a fixed length obtained by cutting a long object 2 into a fixed length by a shear 1 is transferred to a conveyor 4 at a rate of 150 m/w.
The paper is conveyed at a high speed of 1.5 inch or more and arrives at the pinch roller 6. At that point, the biting speed of the pinch roller 6, that is, the rotational speed of the pinch roller 6, is adjusted to a speed that is synchronized with the conveyance speed of the plate-shaped object 3 by the conveyor 4.
When the pinch roller 6 receives the plate-like object 3 conveyed by the conveyor 4, the plate-like object 3 is adjusted to be delivered smoothly so that no impact is applied to the plate-like object and no flaws occur. Then, the plate-like object 3 is fed into the blower 5 with the tip of the plate-like object 3 sandwiched between the pinch rollers 6 being lifted up by the blower 11.

Next, a description will be given with reference to FIG. 2, which illustrates the state in which the plate-like objects 3 are loaded onto the piler 5 in the apparatus shown in FIG. 1.

In the figure, numeral 31 indicates the topmost sheet of plate-like material that has already come into contact with the front surface of the stopper 9 of the piler 5 and the tip position has been adjusted, and 32 indicates the topmost plate-like object that has been sandwiched between the pinch rollers 6 and transferred to the piler 5. 33 indicates a subsequent plate-like object that is being transported on the conveyor 4. When the rear end passes the sensor 8, that is, immediately before the leading end of the plate-like material 32 reaches the stopper 9 of the piler 5, a passing signal from the sensor 8 is introduced into the rotation control of the pinch roller 6 (not shown). The rotational speed of the pinch roller 6 is reduced to reduce the speed of the plate-like materials 32 stacked on the piler 5 to 2 On+/+win or less.

FIG. 3 shows an example of the rotation control system of the pinch roller 6. Referring to FIG. 3 and FIGS. At the time when the conveyance speed is started, the pinch roller 6 starts to operate at high speed in synchronization with the conveyance speed. The plate-shaped object 3 is then received by the pinch roller 6, fed into the piler 5, and after the rear end passes the sensor 8, a predetermined time is measured by a counter, and the rotation of the pinch roller 6 is decelerated. After the plate-shaped object 3 is loaded onto the piler 5, the pinch roller 6 is returned to high-speed rotation by a pulse signal in time for the arrival of the next plate-shaped object, and the subsequent plate-shaped object 33 is pinched. Repeat operation.

The rotation speed of the pinch roller 6 is controlled by this sensor 8.
The signal from sensor 8 can be input directly to a continuously variable speed motor, or it can be input to a mechanical variable speed drive device such as a clutch.

By controlling the rotation of the pinch roller 6, it is possible to reduce and control the impact caused by the inertia of the transfer of the plate-shaped object 32 to the stopper 9 to the extent that no tip-bottoming occurs.

In this way, after the plate-like object 32 comes into contact with the stopper 9 of the piler 5 and is stacked on the plate-like object 31, the rotation speed of the pinch roller 6 is returned to the original speed, and the rotation speed of the pinch roller 6 is returned to the original speed. Waiting for the next plate-like object 33 to be conveyed at high speed. Then, after the next plate-like object 33 is caught in the pinch roller 6, the same control operation is repeated to carry out stacking.

In the above embodiment, an example was explained in which pinch rollers were used as a conveyance means from a conveyor to a piler.
Instead of the pinch roller, a suction belt as shown in FIG. 4 may be used to feed the material into the piler.

In FIG. 4, a plate-shaped object 3 cut into a fixed length by a shear 1 on a line and conveyed at high speed from a conveyor 4 is interlocked with a suction box 21 and a drive motor 22 arranged at the upper part of a piler 5. The rear end detection sensor 81 is located immediately before the tip roller 25 of the suction type feed device 20 and on the lower surface of the conveyor 4. It is installed in

Then, upon receiving the signal from this rear end detection sensor 81,
The transfer speed of the suction belt 24 is controlled in the same way as in the case of the pinch roller.

〔Effect of the invention〕

According to the present invention, it is possible to construct a piling line that can maximize the shearing capacity without causing flaws at the tip of plate-like materials, and improve equipment efficiency.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the overall configuration of a loading line according to a first embodiment of the present invention, FIG. 2 is a functional diagram thereof, and FIG. 3 is a diagram showing an example of a control system. Further, FIG. 4 is a diagram showing a second embodiment. 1: Shear 2: Long object 3: Plate object 4: Conveyor 5: Pyra
6: Pinch roller 7: Guide roller 8: Sensor 9: Stopper 10: Shock absorber 118 Blower 20: Feeding device 21: Suction box 22: Drive motor 23: Drive roller 24 + suction roller
25; Tip roller 31.32.33: Plate-shaped object 81: Rear end detection sensor

Claims (1)

[Claims] 1. In a plate piling device that has a conveyor following the shear and a piler placed after the conveyor, a means for feeding into the piler is provided between the conveyor and the piler, and a means for feeding the piler from the conveyor is installed. In a method for stacking plate-like objects in which the plate-like objects are received by the plate-like object feeding means at a speed synchronized with the conveyance speed of a conveyor, a means for confirming passage of the conveying plate-like object is provided before the feeding means. , when the passage of the plate-like object is confirmed by the passage confirmation means, a flaw occurs when the plate-like object is intercepted from the speed at which the plate-like object is fed into the piler by the feeding means to the piler at a speed synchronized with the conveyance speed of the conveyor. After this loading, the receiving speed of the plate-like object from the conveyor of the feeding means for the next transferred plate-like object was synchronized with the conveyance speed of the conveyor. A method for loading plate-like objects, comprising: returning the plate-like object to the same speed, receiving the plate-like object, and repeating deceleration control of the feeding speed of the feeding means to the piler after the passage of the plate-like object is confirmed by the passage confirmation means.