JPH0597304A - Carrying conveyor for plate material - Google Patents

Abstract

PURPOSE:To provide a mechanism having no generation of offspecification products caused by the contact of a carrying material with a carrying conveyor regardless of the approaching speed of the carrying material. CONSTITUTION:In a carrying conveyor for plate material which receives a plate material M onto a belt 2 from another carrying means and carries it to a piling device D or the like, the carrying conveyor has the runnable belt 2 having holes 2a and an air chamber 3 situated below the belt 2 to jet air for floating the plate material M to the holes 2a of the belt 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyer for conveying steel plates and other plate-like materials, and more particularly to a conveyer suitable for receiving and conveying plate-like materials having different speeds.

[0002]

2. Description of the Related Art Plate-shaped materials such as stainless steel plates and plywood are cut to a predetermined size by a shear at the end of a production line,
It is stacked and packaged before shipping as a product. The most common stacking method is piling in which the cut plate-shaped materials are conveyed one by one and sequentially stacked on a lifter waiting in a piling device.

In such piling, transfer of the plate material from the shearing process to the piling device is performed by a conveyor.

FIG. 4 is a schematic view of a conventional apparatus including this transfer conveyor. As shown in FIG. 4, a telescopic conveyor 51 is provided downstream of the shear 50 and an intermediate conveyor 52 is provided downstream of the telescopic conveyor 51. It is arranged. Furthermore,
The end of the intermediate conveyor 52 has a layout connected to the piling device 53. Piling device 53
Has a belt 54 that conveys the plate-shaped materials in the line direction while adsorbing the plate-shaped materials, and a lifter 55 that stacks the plate-shaped materials is on standby below the device 53.

[0005]

Recently, in order to increase the processing capacity for collecting such plate-like materials, the cutting speed by the shear is accelerated, and accordingly, the plate-like material enters the conveyor. Speed also tends to be accelerated.

In general, the speed of a plate-like object to be carried in is the same as the speed of a conveyor for receiving the same, and in such a case, no trouble occurs at the time of receiving. However, as described above, the loading speed of the plate-shaped material is diversified, and it is often difficult to adjust the speed of the conveyor to match the entry speed.

Since the above-mentioned conventional conveyor conveys the plate material cut by the shear directly onto the belt of the conveyor, there are various problems when the plate material to be carried in and the belt traveling speed of the conveyor are different. Occurs.

That is, when the carry-in speed is faster than the belt traveling speed of the conveyer, a defective plate-like product is generated due to the breakage of the belt or the peeling of the belt surface,
Also, if it is loaded at a speed lower than the traveling speed of the belt,
Scratches occur between the plate and the belt, which causes defective products.

An object to be solved in the present invention is to provide a mechanism for a plate-like material conveying conveyor, which does not cause defective products due to contact between the conveying material and the conveying conveyor irrespective of the entering speed of the conveying material. It is in.

[0010]

In order to achieve the above-mentioned object, the present invention provides a plate-shaped material conveying conveyor for receiving a plate-shaped material from another conveying means on a belt and conveying it to a piling device or the like. The transport conveyor is provided with a belt with holes that can be moved, and an air chamber that is located under the belt and that blows air that floats the plate-like material into the holes of the belt. To do.

[0011]

According to the present invention, the air can be jetted from the hole of the traveling belt to the carried plate material, and the plate material can be received in a floating state. Therefore, even if a plate-shaped material having a speed different from the belt traveling speed of the transfer conveyor is carried onto the transfer belt, the plate-shaped material and the belt do not come into direct contact at the time of receipt.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic view of an entire piling apparatus including a conveyor according to the present invention, and FIG. 2 is a perspective view showing a partial cutaway of a main part of the conveyor.

As shown in FIG. 1, a shear A for cutting a steel plate
Downstream of the carrier conveyor B, followed by an intermediate conveyor C
And the piling device D shown in the conventional example is provided at the downstream end of the intermediate conveyor C.

The transfer conveyor B includes a fixed conveyor 1a,
The fixed conveyer 1a has a moving conveyer 1b which is arranged above the fixed conveyer 1a and horizontally moves to receive cut steel plates and the like smoothly. The fixed conveyer 1a and the movable conveyer 1b are provided with a belt 2 which has a hole 2a formed on the entire surface and which conveys the plate-shaped material M, and an air chamber 3 is arranged below the pass line in the conveying direction.

The air chamber 3 has a width almost equal to that of the belt 2. As shown in FIGS. 2 and 3, the air supply chamber 4 is at the upper stage, the air supply chamber 5 is at the center of the lower stage, and two chambers at the left and right sides.
A row of exhaust chambers 6 is provided. An air supply fan (not shown) is connected to the air supply chamber 5, while
Blowers (not shown) for sucking air are connected to the exhaust chambers 6 on both sides.

3A and 3B schematically show the air chamber 3. FIG. 3A is a vertical sectional view, and FIG. 3B is a vertical sectional view as seen in the pass line direction.

The air chamber 3 is constructed as a unit and is laid out by appropriately changing the number of combinations according to the length of the line. In the air chamber 3 of one unit, the supply / discharge chamber 4 is divided by the partition wall 7, and the cells 4a are arranged side by side in the pass line direction. Further, an air supply port 8 is formed in the center of the upper surface of each cell 4a and suction ports 9 are formed on both sides thereof, and a plurality of slits 4b are cut in the lower surface in the pass line direction.

The air supply chamber 5 comprises one unit of cell 4a.
Of the volume shape including all the suction ports 8 of the air supply duct 5a
Air is supplied to the air supply port 8 from the outside. Similarly, the exhaust chamber 6 also has a shape for discharging air from all the suction ports 9 of the cell 4a, and has a structure in which an exhaust duct 6a is connected. Reference numeral 16 is an electromagnetic magnet provided to attract a magnetic material such as a steel plate onto the belt 2.

Shutters 10 and 11 for opening and closing the air supply port 8 of the cell 4a and the suction port 9 of the downstream cell 4a adjacent to the cell 4a are arranged on the upper surface of the supply / discharge chamber 4. These shutters 10, 11 are connected to a common shaft 13 supported by bearings 12 provided on the upper surface of the supply / discharge chamber 4, as is particularly clear in FIG. And the axis 13
Is connected to an actuator 14a of a pneumatic cylinder 14 whose base end is pivotally attached to a frame (not shown) outside the apparatus. Due to the operation of the pneumatic cylinder 14, when the actuator 14a is retracted, the suction port 9 is closed by the shutter 11 and the air supply port 8 of the cell 4a adjacent downstream is opened as shown in FIG. Further, when the actuator 14a extends, the shaft 13 rotates clockwise in FIG. 2 and the shutter 11 opens and at the same time the shutter 10 opens.
Due to this, the air supply port 8 is closed. Thus, by connecting the shutters 10 and 11 on one axis, the adjacent cells 4
The air supply port 8 and the suction port 9 of a can be simultaneously opened and closed by a single drive source.

In the above structure, the belts 2 of the fixed conveyor 1a and the moving conveyor 1b are the same as those shown in FIGS.
Traveling in the direction of the arrow in (a), the plate-shaped body M is moved to the intermediate conveyor 5
Transport to side 2. At this time, the plate-shaped body M carried on the conveyor belt B is levitated on the upper surface of the belt 2, and the levitating state is released at the downstream side of the sheet M to be dropped onto the belt 2 to be conveyed.

In FIG. 3 (a), the upstream side cell 4a for receiving the loaded plate-shaped body M opens the suction port 8,
The air supply port 9 is in a closed state, and the inside of each cell 4a of the supply / discharge chamber 4 has a flow in which air is ejected upward as shown in FIG. 3 (b). Therefore, the plate-shaped body M on the upper surface of the belt 2 is floated by the air blown from the holes 2a and is conveyed to the downstream side by the inertia force at the time of loading without contacting the belt 2.

On the other hand, the shutters 10 and 11 on the downstream side of the receiving point are in a state in which air is constantly sucked in by opening the air supply port 9 side and closing the suction port 8 side. As a result, the plate-like body M, which has once floated, is attracted to the surface of the belt 2. In the case of a magnetic material such as a steel plate, it is attracted onto the belt 2 by the electromagnetic magnet 16 provided on the downstream side.
The plate-shaped material M adsorbed to the belt 2 is conveyed to the intermediate belt C on the downstream side by traveling of the belt 2 as in the conventional case.

The air chamber 3 described above is similarly used for both the fixed conveyor 1a and the moving conveyor 1b.

As described above, in the plate-shaped carrier according to the present invention, the air for floating the conveyed plate-shaped body is provided at the upstream portion of the conveyor, which is the receiving point of the plate-shaped body conveyed from the other conveying means. It's gushing. For this reason, even if a plate-shaped body having a speed different from the traveling speed of the conveyor belt is carried in, the plate-shaped body is received in a floating state, so that the plate-shaped body does not directly contact the belt of the conveyor, and the conveyor belt caused by the speed difference or No damage to the plate itself.

[0025]

According to the present invention, the following effects can be obtained.

(1) Since the plate-shaped member carried on the transfer conveyor does not directly contact the belt of the transfer conveyor, a plate-shaped member having a speed difference from the belt traveling speed of the transfer conveyor is transferred in. Even in the case, the conveyor belt and the plate-like body which is the product are not damaged.

(2) Since the stripped pieces of the belt are not mixed in the plate-like member as in the conventional case, the product yield is improved.

(3) Since the conveyor belt is not damaged by the plate-shaped body, the conventional downtime for belt replacement is unnecessary, and the uptime of the apparatus is greatly increased.

[Brief description of drawings]

FIG. 1 is a schematic view of an apparatus including a conveyor according to the present invention.

FIG. 2 is a perspective view in which a main part of a transfer conveyor is partially cut away.

FIG. 3 is a diagram showing a state of a plate-like body due to supply and discharge of air to and from an air chamber.

FIG. 4 is a layout diagram of a conventional device.

[Explanation of symbols]

2 belts, 2a holes, 3 air chambers, 4 supply / discharge chambers 4a cells, 5 supply chambers, 5a supply ducts, 6 exhaust chambers, 6a exhaust ducts, 7 partition walls,
8 air supply port, 9 suction port, 10 shutter, 11 shutter, 12 bearing, 13 shaft, 14 pneumatic cylinder, 1
4a Actuator A Shear, B Conveyor, C Intermediate Conveyor, D
Piling device, M plate material

Claims (1)

[Claims] 1. A transport conveyor for receiving a plate-shaped material from another transport means on a belt and transporting the same to a piling device or the like, the transport conveyor comprising a perforated belt and a movable belt of the belt. A plate-like material transfer conveyor, which is provided at the lower part and is provided with an air chamber for ejecting air for floating the plate-like material into the hole of the belt.