JP2001198767A - Product carry-out stacking system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an end material from mixing in a plurality of projects stacked on a project stacking device. SOLUTION: A first recovery clearance 39 is formed between a lower blade 11 and a carry-out conveyor 17, a first shooter 43 for delivering a product W to a carry-out belt 27 is provided oscillatable in a direction in which the first recovery clearance 39 is opened and closed, a second recovery clearance 53 is formed between the carry-out conveyor 17 and a project stacking device 31, and a second shooter 57 is provided oscillatable in a direction in which the second recovery clearance 53 is opened and closed. When a sensor 67 detects that an end material Wa is delivered to the carry-out belt although the first recovery clearance 39 is opened, the second shooter 57 is controlled so as to be oscillated in a direction to open the second recovery clearance 53.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product unloading and collecting system for transferring products separated from a plate-shaped material by shearing of a shearing machine in an unloading direction and collecting the products.

[0002]

2. Description of the Related Art A conventional product unloading and integrating system will be briefly described as follows.

[0003] That is, an unloading conveyor for transporting products in the unloading direction is provided behind the lower blade of the shearing machine, and a product accumulating device for stacking products is installed behind the unloading conveyor. Here, a collecting gap for collecting scraps is formed between the lower blade and the carry-out conveyor. At the front end of the unloading conveyor, there is provided a first shooter for transferring the product to the unloading belt of the unloading conveyor. The first shooter can swing in the direction of opening and closing the collection gap by operating a swing cylinder. It is composed.

[0004] Therefore, when collecting scraps, the first shooter is swung in a direction to open the collecting gap by the operation of the swing cylinder, so that the collecting gap is largely opened.
As a result, the lug (one of the offcuts) generated by the so-called edge cutting or the remnant (one of the offcuts) carried behind the lower blade falls through the collection gap, and falls below the collection gap. Ear material or remaining material is collected.

When the products are conveyed in the carry-out direction and accumulated, the first shooter is swung in a direction to close the collection gap by the operation of the swing cylinder, and the collection gap is closed. As a result, the product separated from the plate-shaped material by shearing is transferred to the unloading conveyor by the first shooter, is conveyed in the unloading direction by the operation of the unloading conveyor, and is accumulated in the product accumulation device. By repeating the above operation a plurality of times, products can be integrated in the product integration device.

[0006]

By the way, even if the first shooter is swung in a direction to open the collecting gap and the collecting gap is largely opened, the scraps may hit the side surface of the lower blade, for example. And may be delivered to the unloading conveyor. In this case, the offcuts are conveyed in the unloading direction, the offcuts are mixed into the accumulated products on the product accumulating device, and it is necessary to remove the offcuts from the accumulated products.
There is a problem that a series of operations becomes complicated.

[0007]

According to the first aspect of the present invention, an unloading conveyor for transferring products in a unloading direction is provided behind the lower blade of the shearing machine, and the products are collected behind the unloading conveyor. A product stacking device for collecting scraps between the lower blade and the unloading conveyor.
A first chute is formed to form a collection gap and deliver the product to the carry-out belt of the carry-out conveyor, and the first chute can be swung in a direction to open and close the first collection gap by actuation of a first swing actuator. A second collecting gap for collecting scraps between the unloading conveyor and the product accumulating device, and a second shooter for delivering and transferring the products to the product accumulating device; The second shooter is configured to be swingable in a direction to open and close the second collection gap by the operation of the second swing actuator, and a sensor is provided for detecting that the end material has been delivered to the unloading belt of the unloading conveyor. When the sensor detects that the end material has been delivered in spite of the state where the first collecting gap is opened by the first shooter, the second shoe is moved in a direction to open the second collecting gap. Characterized by comprising providing a controller for controlling the operation of the second swing actuator so as to swing the.

Here, the above-mentioned sensor is a sensor for detecting that the unloaded conveyer has passed a predetermined position by transporting the unloading conveyor within a predetermined time, or detecting that the scrap material has not dropped through the collection gap within a predetermined time. It refers to a sensor that performs Further, as the start of the predetermined time, for example, a time when the upper blade is lowered and positioned at a predetermined height position is used.

According to the first aspect of the present invention,
When collecting the scraps, the first shooter is swung in a direction to open the first collection gap by the operation of the first swing actuator, so that the first collection gap is largely opened. As a result, the lumber (one of the offcuts) generated by the so-called trimming or the remaining material (1 of the offcuts) discharged behind the lower blade is removed.
) Fall through the first collection gap, and the ear material or the remaining material is collected below the first collection gap.

On the other hand, if the scrap material is delivered to the unloading belt of the unloading conveyer without falling through the first collection gap, for example, when it comes into contact with the side surface of the lower blade, a predetermined detection is performed by the sensor. The operation of the second swing actuator is controlled by the control means, and the second shooter is swung in a direction to open the second collection gap, so that the second collection gap is opened. Thereby, the offcuts conveyed in the unloading direction by the unloading conveyor fall through the second collection gap, and are collected below the second collection gap.

When the products are conveyed in the carry-out direction and accumulated, the first shooter is swung in a direction to close the first collection gap by the operation of the first swing cylinder, and the first collection gap is closed. To Further, the second shooter is swung in a direction to close the second collection gap by the operation of the second swing cylinder, and the second collection gap is closed. by this,
The product separated from the plate-like material by shearing is transferred to the unloading conveyor by the first shooter, is conveyed in the unloading direction by the operation of the unloading conveyor, and is further transferred by the second shooter so as to be integrated in the product accumulation device. You. By repeating the above operation a plurality of times, products can be integrated in the product integration device.

According to the second aspect of the present invention, in addition to the matters specified in the first aspect, in addition to detecting that the scrap material has been delivered to the carry-out belt of the carry-out conveyor, It is configured to be able to detect that the product has been delivered to the unloading belt of the unloading conveyor, and the control means is configured such that the product is delivered to the unloading belt of the unloading conveyor within a predetermined time by the sensor during the unloading and stacking operation of the product. It is configured to be controllable so as to generate an alarm when no event is detected.

Here, as the start of the predetermined time, for example, a time when the upper blade is lowered and positioned at a predetermined height is used.

According to the second aspect of the present invention,
In addition to the action according to the first aspect of the present invention, if the sensor does not detect that the product has been delivered to the unloading belt of the unloading conveyor within a predetermined time during unloading and accumulating the product, an alarm is generated by the control unit. generate.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a product unloading and accumulating system 1 according to an embodiment of the present invention has a plate-like material (not shown) separated by a shearing machine 3 from a plate-like material (not shown). In this system, the products W are transported in a carry-out direction (rearward direction, left direction in FIG. 1), and the products W are accumulated. Hereinafter, the shearing machine 3 will be briefly described, and then the product unloading and integrating system 1 will be described in detail.

The shearing machine 3 is based on a pair of side frames 5 (only one is shown in the drawing) facing left and right (front and back in FIG. 1). Connected.
A lower frame 7 is provided at a lower portion (a lower portion in FIG. 1) between the pair of side frames 5, and a work table 9 for supporting a plate-shaped material is provided above the lower frame 7.
At the rear side of the work table 9, a lower blade 11 is provided extending in the left-right direction. An upper frame 13 is provided at an upper portion between the pair of side frames 5 so as to be able to move up and down by operation of a lifting / lowering operation device (not shown). An upper blade 15 for shearing is provided extending in the left-right direction.

Behind the lower blade 11, there is provided a carry-out conveyor 17 for carrying the plate-shaped product W in the carry-out direction (rearward direction).

That is, a conveyor base 19 is provided behind the lower blade 11, and a support frame 21 having a U-shaped cross section is provided on the conveyor base 19 so as to extend in the front-rear direction. Pulleys 23 and 25 are rotatably provided at the front end and the rear end of the support frame 21, respectively.
An endless delivery belt 27 is provided around the pulleys 23 and 25 so as to be wound therearound. Then, in order to make the carry-out belt 27 circulate, an appropriate pulley 25 is attached to the carry-out motor 2.
Linked to 9

A product accumulating device 31 for accumulating products W is provided behind the unloading conveyor 17.

That is, a traveling carriage 33 is provided behind the unloading conveyor 17 so as to be movable in the front-rear direction, and the traveling carriage 33 is provided with a lifter table 35. The lifter table 35 is configured to be able to move up and down so that the height of the uppermost product W can be kept substantially constant. Furthermore,
At the rear of the lifter table 35, an abutment member 37 is provided, which can abut the end face of the product W.

A first collection gap 37 for collecting the scraps Wa is formed between the lower blade 11 and the unloading conveyor 17, and a first collection box 41 is provided below the first collection gap 39. It is placed. The product W is delivered to the front end of the support frame 21 in the unloading conveyor 17.
The base of a first shooter 43 to be delivered to the carry-out belt 27 is connected via a hinge pin 45, and the first shooter 43 opens and closes the first recovery gap 39 about the axis of the hinge pin 45 in the vertical direction. It is configured to be swingable.
To swing the first shooter 43 in the vertical direction, a first swing cylinder 49 having a vertically movable piston rod 47 is swingably connected to the front end of the support frame 21 via the bracket 51. The piston rod 47 is connected to the first shooter 43 at an appropriate position.

When the traveling carriage 33 is positioned at the product accumulation position (the position shown in FIG. 1) close to the unloading conveyor 17, there is a scrap W between the unloading conveyor 17 and the lifter table 35 of the product accumulation device 31. A second collection gap 53 is formed to collect the second collection box 53. Below the second collection gap 53, a second collection box 55 is placed. Support frame 21 of the carry-out conveyor 17
The base of a second shooter 57 for transferring the product W to the product accumulating device 31 so as to be accumulated in the product accumulating device 31 is connected to the rear end of the second shooter 57 via a hinge pin 59. It is configured to be swingable in the vertical direction for opening and closing the second collection gap 53 as a center. To swing the second shooter 57 vertically, a second swing cylinder 63 having a vertically movable piston rod 57 at the rear end of the support frame 21 can swing through a bracket 65. The distal end of the piston rod 61 is connected to an appropriate position of the second shooter 57.

The end material Wa passes through the first recovery gap 39 and is
Even if it is not collected in the collection box 41, the second
It is configured to be collected in the second collection box 55 through the collection gap 53.

That is, the support frame 2 of the carry-out conveyor 17
A pass detection sensor 67 for optically detecting that the scrap material Wa has passed through the conveyance is provided at an appropriate position on the front end side of the pass 1. The pass detection sensor 67 is connected to the control means 69. The control means 69 opens the second collection gap 53 when the passage detection sensor 67 detects that the scrap material Wa has passed within a predetermined time while the first collection gap 39 is opened by the first shooter 43. The operation of the second swing cylinder 63 is controlled so as to swing the second shooter 57 upward. Here, the start of the predetermined time refers to the time when the upper frame 13 descends and the upper blade 15 is located at a predetermined height position.

Further, when the first collecting gap 39 is closed by the first shooter 43 and the passage detection sensor 67 does not detect that the product W has passed within a predetermined time, the control means 69 issues an alarm. It is configured to be controllable to generate.

The passage detection sensor 67 detects that the scrap material Wa or the product W has passed, thereby detecting that the scrap material Wa or the product W has been delivered to the unloading belt 27 of the unloading conveyor 17. Is to detect that the end material Wa or the product W has not fallen through the first collection gap 39 by a fall detection sensor such as a vibration sensor provided on the lower side of the first shooter 43 or the first collection box 41. Accordingly, it may be configured to indirectly detect that the end material Wa or the product W has been delivered to the carry-out belt 27.

Next, an embodiment of the present invention will be described with reference to the flowcharts shown in FIGS.

The operator determines whether or not the operation is to carry out and accumulate the product W, and if the operation of collecting the scraps Wa is to be performed (step 1), the first recovery cylinder 39 is opened by operating the first swing cylinder 49. By swinging the first shooter 43 upward, the first collection gap 39 is largely opened (step 2). As a result, the work of collecting the offcuts Wa is started (step 3), and the lug (one of the offcuts) Wa generated by the so-called edge cutting or the remaining material (1 of the offcuts) carried out behind the lower blade 11 is obtained. 1) Wa falls through the first collection gap 39, and the first collection box 4 is located below the first collection gap 39.
The scraps Wa are collected by the step 1 (step 5). At this time, the passage detection sensor 67 does not detect that the scrap material Wa has passed within the predetermined time.

On the other hand, in the case where the scrap W is delivered to the carry-out belt 27 of the carry-out conveyor 17 without falling through the first recovery gap 39, for example, by abutting against the rear side surface of the lower blade 11, for example. The passage detection sensor 67 detects that the scrap material Wa has passed within a predetermined time (step 4),
The control means 69 controls the operation of the second swing cylinder 63 to open the second collection gap 53 and to move the second shooter 5 upward.
7 is swung to open the second collection gap 53 (step 7). As a result, the scraps Wa conveyed in the unloading direction by the unloading conveyor 17 are separated by the second collection gap 5.
3 and is collected by the second collection box 55 below the second collection gap 53 (step 8).

Returning to step 1, it is determined whether or not the worker carries out the unloading and stacking work of the product W. When the worker carries out the unloading and stacking work, the first swing gap 49 is operated to set the first recovery gap 39. The first shooter 43 is swung downward to close the first collecting gap 39 (step 9). Also, the second swing cylinder 63 operates to
The second shooter 57 is swung downward to close the collection gap 53 to bring the second collection gap 53 into a closed state (step 10). Here, the state in which the collection gap 39 (or 53) is closed may be any state in which the scrap Wa or the product W can be delivered even if the collection gap 39 (or 53) is not completely closed. As a result, the work of unloading and accumulating the product W is started (step 11), and the plate-shaped product W separated from the plate-shaped material by shearing is transferred to the unloading conveyor 17 by the first shooter 43, and the operation of the unloading conveyor 17 is performed. Is transferred in the unloading direction, and is delivered by the second shooter 57 so as to be accumulated in the product accumulation device 31 (step 13). At this time, the passage detection sensor 67 detects that the product W has passed within a predetermined time (step 1).
2) If not detected, an alarm is generated by the control means 69 (step 14).

The above operation is repeated until a series of operations is completed (step 15). Thus, the plurality of scraps Wa are collected in the collection boxes 41 and 55, and the products W are accumulated in the product accumulation device 31.

As described above, according to the embodiment of the present invention, the end material Wa does not fall through the first recovery gap 39, for example, abuts against the rear side surface of the lower blade 11, and the discharge conveyor 17 does not fall. When the second shooter 57 is swung upward by the control means 69 to open the second collection gap 53, even if the second collection gap 53 is delivered to the It can be collected by the collection box 55, and it is possible to prevent the scraps Wa from being mixed into the products W accumulated in the product accumulation device 31, thereby improving the work efficiency.

If the passage detection sensor 67 does not detect that the product W has passed within a predetermined time during the work of unloading and accumulating the product W, the control means 69 generates an alarm. The entire operation can be stopped, and the occurrence of an accident in the automation of the product unloading and collecting system 1 can be stopped.

[0034]

According to the first aspect of the present invention, the end material is delivered to the carry-out belt of the carry-out conveyor without dropping through the first recovery gap, for example, when it comes into contact with the rear side surface of the lower blade. In this case, the scraper can be collected below the second collection gap by swinging the second shooter in a direction to open the second collection gap by the control means. It is intended to improve the work efficiency by preventing scraps from being mixed into the accumulated products.

According to the invention described in claim 2, according to claim 1
In addition to the effects of the invention described in the above, during the product unloading work, if it is not detected that the product has been delivered to the unloading belt of the unloading conveyor within a predetermined time by the sensor, to generate an alarm by the control means, The operation of the entire product unloading and integrating system can be stopped, and the occurrence of an accident in the automation of the product unloading and integrating system is stopped.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a product unloading and integrating system.

FIG. 2 is a flowchart showing an operation of the product unloading and integrating system.

FIG. 3 is a flowchart illustrating an operation of the product unloading and integrating system.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Product unloading and accumulating system 3 Shearing machine 11 Lower blade 17 Unloading conveyor 27 Unloading belt 31 Product stacking device 39 First collection gap 43 First shooter 49 First swing cylinder 53 Second collection gap 57 Second shooter 63 Second swing Cylinder 67 Passage detection sensor 69 Control means

Claims (2)

[Claims] 1. An unloading conveyor for transporting products in an unloading direction is provided behind a lower blade of a shearing machine, and a product accumulating device for stacking products is provided behind the unloading conveyor, between the lower blade and the unloading conveyor. A first collecting gap for collecting the scraps, and a first shooter for transferring the product to a carry-out belt of the carry-out conveyor is provided. The first shooter is operated by a first swing actuator to carry out the first collecting operation. It is configured to be swingable in a direction to open and close the gap, and further, a second collection gap for collecting scraps is formed between the unloading conveyor and the product accumulation device, and products are accumulated in the product accumulation device. The second shooter is provided in such a manner that the second shooter is transferred by the operation of the second swing actuator.
The recovery gap is configured to be swingable in the opening and closing direction, and a sensor is provided for detecting that the end material has been delivered to the discharge belt of the discharge conveyor, and the first collection gap is opened by the first shooter. Nevertheless, when the sensor detects that the scrap is delivered, the control means for controlling the operation of the second swing actuator so as to swing the second shooter in a direction to open the second collection gap is provided. An integrated product unloading system characterized by being provided. 2. The sensor according to claim 2, wherein the sensor is configured to detect that the scrap material has been delivered to the carry-out belt of the carry-out conveyor, and to detect that the product has been delivered to the carry-out belt of the carry-out conveyor. The control means is configured to be controllable so as to generate an alarm when it is not detected that the product has been delivered to the unloading belt of the unloading conveyor within a predetermined time by the sensor during unloading and accumulating the product. 2. The product unloading and integrating system according to claim 1, wherein