JP3319779B2 - Processing system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing system for sequentially performing a plurality of types of processing.

[0002]

2. Description of the Related Art After a certain processing is performed on a work by a first processing machine, another processing is performed by a second processing machine.
If the time required for processing by the first processing machine is shorter than the time required for processing by the second processing machine, a plurality of second processing machines are installed, and processing by the second processing machine is performed on a plurality of workpieces. Are done at the same time.

[0003]

In the case where the processing performed on the workpiece is not a single type but the processing performed on the next flowing workpiece is a different type, the processing performed by the first processing machine is performed. Sometimes takes longer than the time required for processing by the second processing machine. In this case,
Economical with multiple second processing machines arranged in series
From the point of view, the number of conveyors and the number according to the number of conveyors are required
In order to reduce the number of positioning devices,
Conveyor for supply and discharge of workpieces for
When the second machine is working
In terms of point, the workpiece can be sent to another second processing machine
In the case where there is no processing, if a plurality of workpieces are simultaneously processed by a plurality of second processing machines, the productivity is rather reduced.

[0004] The present invention has been made in view of such a point, and an object of the present invention is to provide a processing system capable of always obtaining good productivity according to the time required for processing a workpiece. It is in.

[0005]

According to the present invention, there is provided a first processing machine for performing a first processing on a work, a second processing machine for performing a second processing on the work, A single transfer means for transferring a work between the first processing machine and the second processing machine, and a plurality of second processing machines are provided in series, and a plurality of second processing machines are provided by a single transfer means. a processing system capable of performing simultaneously the second machining for the workpiece supplied to the machine for a plurality of workpieces, is second
When one of the processing machines is processing, the other
In supplying the work to the second processing machine, in the case where the work cannot be fed by the transfer means ,
The time required for the second processing for the workpiece supplied to the second processing machine, the time required for the first processing for the next workpiece supplied to the first processing machine, and the transfer of the workpiece to the second processing machine When the former is longer than the latter, a plurality of workpieces are simultaneously supplied after the preceding workpiece is temporarily suspended on the transport means, and when the former is shorter than the latter, the single workpiece is supplied. It is characterized in that it is provided with a switching control means for switching only supply.

[0006]

According to the present invention, the time required for the second processing for the workpiece supplied to the second processing machine is determined by the time required for the first processing for the workpiece supplied to the next first processing machine and the time required for this workpiece. Is shorter than the sum of the time required to transport the workpiece to the second processing machine, the workpiece processed by the first processing machine is directly sent to the second processing machine, and in the opposite case, Since a plurality of workpieces are simultaneously supplied to a plurality of second processing machines, productivity can always be kept high.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment.
And two second processing machines 2 and 2 for performing the second processing on the workpiece, and the first processing machine 1
A conveyor 3 is provided between the first processing machine 1 and the second processing machine 2 to supply the work processed by the first processing machine 1 to the second processing machine 2. , 2 and the conveyors 3 are connected to a process control unit 4 composed of a computer.

[0008] The process control section 4 receives data of the time required for each of a plurality of types of processing performed on the workpiece and the time required for transport by the transport conveyor 3, and is sent to the first processing machine 1. The data of the type of machining for a workpiece is input.
When the processing by the processing machine 1 is completed, the next work 4
The operations of the conveyor 3 and the plurality of second processing machines 2 are switched in accordance with the type of processing for the second processing machine 2 as follows.

That is, the time required for the second processing for the work 1 supplied to the second processing machine 2 is the time required for the first processing for the next work 42 supplied to the first processing machine 1 and the time required for this work. If the time is shorter than the sum of the time required to transfer the workpiece 42 to the second processing machine 2, the work 41 processed by the first processing machine 1 is, as shown in FIG.
Is sent to one of the two second processing machines 2 and 2 as it is.

The work 1 to be supplied to the second processing machine 2
And the time required for the first processing for the next work 42 to be supplied to the first processing machine 1 and the time required for transporting the work 42 to the second processing machine 2 In the case where the length is longer than the sum of the workpieces 41, as shown in FIG.
Is temporarily suspended on the conveyor 3, and after the next work 42 is processed by the first processing machine 1, the two works 41, 42 are simultaneously sent to the two second processing machines 2, 2. Thus, the second processing is performed on both the workpieces 41 and 42 at the same time.

For example, processing and transport of the first processing machine 1
8 seconds and 10 seconds for processing by the second processing machine 2 (above)
In the latter case), there are two second processing machines 2 and two
When the second processing can be performed simultaneously on the work
The workpiece 41 processed by the first processing machine 1
Simultaneously to the two second processing machines 2 and 2 together with the next workpiece 42
In the multiple simultaneous machining that is sent to the machine, the multiple simultaneous machining is completed in 8 + 8 + 10 = 26 seconds.
The workpieces 41 and 42 placed on standby in the second processing machine 2.
In the case of the single machining that is sent without fail, the single machining is completed in 8 + 10 + 10 = 28 seconds.
Processing can be completed in a short time. Conversely, the first
10 seconds for processing and transport of machine 1 and processing of second machine 2
8 seconds (the former case), the second processing machine
2 is 2 units and 2nd work is performed simultaneously on 2 works
Work that can be processed by the first processing machine 1
41 is temporarily stopped, and two second
In the multiple simultaneous machining that is simultaneously sent to the processing machines 2 and 2 , the processing is completed in 10 + 10 + 8 = 28 seconds , while the processing performed by the first processing machine 1 is completed.
The workpieces 41 and 42 placed on standby in the second processing machine 2.
In the case of the single machining that is sent without fail, the single machining is completed in 10 + 10 + 8 = 28 seconds , and the two workpieces 41 and 42 are completed.
Processing time is the same, but focus on work 41
Then, the workpiece 41 is put into the first processing machine 1 and
The time from completion of processing by the second processing machine 2 until it comes out
Is that the simultaneous processing is 10 + 10 + 8 = 28 seconds , but the single processing is 10 + 8 = 18 seconds , and the single processing is flowed to the next process 10 seconds earlier.
Can be. At this time, the work to be performed on the work
And the processing to be performed on the next flowing workpiece is different
If it is the type, the post-process also requires single processing
Therefore, the difference of 10 seconds affects the post-process,
If so, there is a large difference. As described above, the processing mode of the second processing machines 2 and 2 is changed in accordance with the time required for processing of the workpiece 42 sent next, so that the second processing by the second processing machine 2 is performed. Conveyor 3 until the operation is completed
In this case, the work does not wait unnecessarily, and the work waiting time in the second processing machine 2 is not wasted.

[0012]

As described above, in the present invention, the time required for the second processing for the workpiece supplied to the second processing machine is the first time for the workpiece supplied to the next first processing machine.
If the time required for the processing of the first processing machine is shorter than the sum of the time required for the processing of the first processing machine and the time required for transporting the work to the second processing machine, the work processed by the first processing machine is directly transferred to the second processing machine. In the reverse case, the second work in the second processing machine 2 is performed in order to simultaneously supply a plurality of workpieces to a plurality of second processing machines.
It is possible to keep the productivity high at all times without the needless work waiting on the conveyor 3 and the work waiting time in the second processing machine 2 being wasted until the processing is completed. Can be done.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of one embodiment.

FIG. 2 is a schematic diagram illustrating an operation in the case of sequential supply according to the first embodiment.

FIG. 3 is a schematic diagram for explaining the operation in the case of the simultaneous supply of a plurality of items.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st processing machine 2 2nd processing machine 3 Conveyor 41, 42 Work

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B23Q 41/08 G05B 19/418

Claims (1)

(57) [Claims] 1. A first processing machine for performing a first processing on a work, a second processing machine for performing a second processing on the work, a first processing machine and a second processing machine A single transfer means for transferring a workpiece between the second processing machine and a plurality of second processing machines are provided in series, and a plurality of second processing machines are provided by a single transfer means.
System capable of simultaneously performing second processing on a workpiece supplied to a processing machine on a plurality of workpieces
At the time when a certain second processing machine is performing processing.
The above-mentioned transfer means sends the work to another second processing machine.
When the work cannot be supplied to the second processing machine, the time required for the second processing for the work to be supplied to the second processing machine and the first time for the work to be supplied to the next first processing machine. Compare the time required for processing the sum of the time required to transport the workpiece to the second processing machine and, if the former is longer than the latter, temporarily wait for the preceding workpiece on the transport means and then wait A machining system comprising a switching control means for simultaneously supplying a plurality of works and supplying only a single work when the former is shorter than the latter.