JPH054703A - Automatic supplying method of material - Google Patents

Abstract

PURPOSE:To supply in proper quantities the material required by the manufacturing line by determining the delivery starting time of each bucket, according to the total time required for each bucket from the delivery to the arrival to the manufacturing line and the time required for each bucket to deliver the prescribed quantity of material to the manufacturing line. CONSTITUTION:When the delivery command to the first bucket is issued from a host computer C1 to a controller C2, the host computer 1 computes the waiting time of the subsequent bucket and determines the derivery time of the subsequent bucket in such a manner that the moment the first bucket is carried out from a material input part 6, the subsequent bucket is carried out from a material input part. When the delivery time of the subsequent bucket comes, the host computer C1 orders a command to the controller C2 for the delivery of the subsequent bucket. This action is repeated. With this contrivance, the material required by the manufacturing line 3 can be supplied in proper quantities.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic material supply method for supplying a material from an automatic warehouse to a production line.

[0002]

2. Description of the Related Art Conventionally, in this type of automatic material supply method, a bucket containing a material is selected from a shelf of a warehouse by a bucket carry-in / carry-out device, is put out on a conveyor, and is conveyed to a manufacturing line by the conveyor, and then the material is conveyed. A method is known in which a predetermined number of materials are taken out from a bucket by an input device and supplied to a production line.

[0003]

By the way, in the conventional method, each bucket is transported from the warehouse to the production line in a constant cycle. The number of materials taken out per bucket decreases, and the number of buckets to be discharged increases accordingly. Therefore, the frequency of bucket delivery required by the production line increases, but the frequency of bucket delivery cannot be increased unnecessarily due to the structure of the conveyor and other equipment. There is a problem that is stopped.

The present invention has been made in view of the above circumstances, and determines the bucket delivery time based on the type and quantity of material, and efficiently supplies the material required by the manufacturing line without excess or deficiency. It is intended to provide an automatic material supply method capable of supplying the material.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a bucket containing material is selected from a warehouse shelf by a bucket carry-in / carry-out device, is put out on a conveyor, and is conveyed to a production line by the conveyor. In the material automatic supply method that takes out a predetermined number of materials from the bucket and supplies them to the production line, set the type and quantity of materials required for the production line and the delivery order in advance, and transfer them from the bucket delivery to the production line. The total time of the required time and the time required to take out a predetermined amount of material from the bucket to the manufacturing line is calculated for each bucket, and the delivery start time of each bucket is determined according to the total time, and the predetermined time is determined. It is an automatic material supply method, characterized in that the materials of the type and quantity are continuously supplied to a manufacturing line in a predetermined order.

[0006]

[Operation] The total time of the time required to convey from the unloading of the bucket to the production line and the time required to take out a predetermined amount of material from the bucket to the production line is calculated for each bucket, and the total time is calculated. Since the delivery start time of each bucket is determined by the above, the materials required by the manufacturing line can be supplied without excess or deficiency.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the embodiments shown in the drawings. This does not limit the invention.

FIG. 1 is a block diagram of an automatic material supply apparatus showing an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an automated warehouse, and the automated warehouse 1 has a bucket Bk as shown in FIG.
A shelf S for storing (k = 1.2 ... n) is provided. Two
Is a bucket carry-in / carry-out device for taking out and storing a desired bucket Bk from the shelf S, 3 is a manufacturing line for manufacturing a multilayer printed circuit board, 4 is a bucket carry-in / carry-out device 2
Therefore, the conveyor 5 that conveys the unpacked bucket Bk to the material loading unit 6 is the bucket Bk that has finished loading the material.
Is a conveyor that conveys the material from the material input unit 6 to the bucket unloading / importing device 2.

Numeral 7 is a bucket Bk that has arrived at the material charging section 6.
A picking device for taking out a predetermined number of substrate materials from the above and supplying them to the material receiving section 8 of the manufacturing line 3, C1 sets in advance the type and quantity of the substrate materials required for the manufacturing line 3 and the shipping order, and sets the corresponding shipping time. A host computer C2 that issues a command is a control device that receives a command from the host computer C1 and controls the bucket carry-in / carry-out device 2, the conveyors 4, 5, and the picking device 7.

FIG. 3 is a table showing the relationship between the types A, B, C, ... Of the substrate materials required from the production plan of the production line 3 and the required number (instructed number) n ₁ , n ₂ , n ₃ ... Indicates
FIG. 4 shows the time required for each transfer process, that is, the time t1 when the bucket is unloaded from the automated warehouse 1 to the conveyor 4, the conveyor moving time t2 when the unloaded bucket is transferred to the material loading unit 6 by the conveyor 4, and the material loading unit 6. 7 is a table showing a time t3 for loading one substrate material into the material receiving unit 8 by the picking device 7 from the bucket arrived at.

These tables are stored in advance in the host computer.
Stored in the data C1. The host computer C1 is shown in FIG.
And bucket type B based on the table shown in FIG.₁, B
₂, B ₃Each time T1, T2, T3 corresponding to ...
Is calculated to create a table as shown in FIG. Na
The holding time is calculated by the following formula. Possession time = t1 + t2 + t3 x designated number of sheets ... (1)

The operation in such a configuration will be described with reference to the flow chart shown in FIG. 6 and the time chart shown in FIG. The host computer C1 reads out the type of delivery material required by the production line 3 from the table shown in FIG. 3 (step 101), and first issues the delivery of the bucket (starting bucket) of the material to be supplied to the production line 3 to the control device C.
2 is instructed (step 102). The bucket designated by this is output from the automatic warehouse 1 and the material input unit 6
(Step 103).

Then, the picking device 7 inputs the substrate material from the bucket into the material receiving portion 8 (step 10).
4) When the supply of the predetermined number of materials from the bucket is completed (step 105), the bucket is returned by the conveyor 5 and stored again at the predetermined position on the shelf S by the bucket carry-in / carry-out device 2 (step 106).

In step 102, the first bucket issuing command is issued from the host computer C1 to the controller C.
2, the host computer C1 calculates the holding time of the next bucket according to the equation (1), and the material is transferred from the material charging section 6 of the first bucket, and at the same time, the next bucket moves to the material charging section 6 of the next bucket. The delivery time with the next bucket is determined so that the product is loaded into the next bucket. (Step 107).

Then, the determined delivery time of the next bucket is set in a timer (step 108), and at that time, the host computer C1 instructs the control device C2 to issue the next bucket (steps 109, 102).
This operation is sequentially repeated, and as shown in FIG. 7, the bucket is unloaded from the automatic warehouse 1 so as not to be interrupted in the material input unit 6.

In this way, even if various kinds of materials are requested from the manufacturing line, it is possible to supply the materials continuously without interruption.

[0017]

According to the present invention, even if the kinds of materials are diversified, it is possible to request the materials required by the manufacturing line to the manufacturing line without being interrupted continuously from the automatic warehouse. Efficiency improves.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an automatic material supply device showing an embodiment of the present invention.

FIG. 2 is a front view of an automated warehouse.

FIG. 3 is an explanatory diagram showing a table of material types and designated number of sheets.

FIG. 4 is an explanatory diagram showing types of transfer processes and a required time table.

FIG. 5 is an explanatory diagram showing a table of bucket types and holding times.

FIG. 6 is a flowchart showing the operation of the embodiment.

FIG. 7 is a time chart showing the operation of the embodiment.

[Explanation of symbols]

 1 Automatic warehouse 2 Bucket carry-in / carry-out device 3 Manufacturing line 4,5 Conveyor 6 Material loading part 7 Picking device 8 Material receiving part C1 Host computer C2 Control device

Claims (1)

Claims: 1. A bucket containing material is selected from a shelf of a warehouse by a bucket carry-in / carry-out device, is put out on a conveyor, is conveyed to a production line by the conveyor, and then is transferred from the bucket by a material charging device. In the automatic material supply method that takes out a predetermined number of materials and supplies them to the production line,
The type and quantity of materials required by the manufacturing line and the shipping order are set in advance, and the time required for transporting from the bucket unloading to the manufacturing line and the time required to take out a predetermined quantity of material from the bucket to the manufacturing line Is calculated for each bucket, the delivery start time of each bucket is determined in accordance with the total time, and a predetermined type and quantity of materials are continuously supplied to the manufacturing line in a predetermined order. Characteristic automatic material supply method.