JP2675726B2 - Parts allocation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parts allocation method for delivering parts necessary for assembly in a product assembly line according to the progress of assembly.

[0002]

2. Description of the Related Art There is a parts delivery system disclosed in Japanese Patent Application Laid-Open No. 2-131829 as a method for reducing the stock of parts in process by delivering parts according to the progress of assembly on an assembly line. This is to read the bar code data attached to the product being assembled to grasp the assembly progress status, and control the number of parts delivered and the delivery timing according to this progress status and the number of lots and parts information given in advance. To do.

[0003]

In this case, in-process inventory can be kept to a minimum, and it is easy to respond to changes in the production plan. As a result, the utilization rate of the product warehouse will deteriorate. The present invention has been made in view of the above points, and an object thereof is a parts allocation method that does not hinder production even if parts are cut off and increases the utilization rate of a product warehouse. To provide.

[0004]

SUMMARY OF THE INVENTION The present invention, therefore, includes a computer that controls assembly, a computer that manages inventory of parts warehouses and product warehouses, and a master computer that sends necessary information to these computers based on a production plan. Accordingly, parts pull urging component goods issue in accordance with the assembled progress information from the assembly control computer in the warehouse management computer
Carrying out the batten, 1 the number of products per lot defines the number of products per lot division or pallet to be an integral multiple of the number of products of the pallet 1 per for transport storage of the product, at the time of production start It is characterized in that parts required for this product are allocated in units of the number of products per pallet.

[0005]

According to the present invention, the product for each pallet can be always produced because production is started after the necessary parts for this product are allocated in units of the number of products per pallet. Therefore, even if parts run out during production, a pallet containing a predetermined number of products is always stored in the product warehouse.

At this time, the number of parts to be stored per bucket for transporting and storing parts is an integral part of the number of parts required for the number of products per palette for transporting and storing products. By setting it as 1 time, the allocation of parts will be in bucket units,
Parts can be always delivered in bucket units, eliminating the need for picking work at the time of delivery.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the illustrated embodiments. In FIG. 2, 10 is master data managed by a host computer, such as production date, line number, production order, model, number of units, etc. It has data such as a schedule plan consisting of data, a model-specific parts master consisting of a model, a part number, and a quantity, and a model-specific pallet standard loading quantity master consisting of a model and a standard loading quantity of each product per pallet. . The master data 20 managed by the master computer 2 stores the above-mentioned respective data transmitted from the host computer 1, and the update thereof is performed from the host computer 1 side.

Here, the master computer 2, which has received the schedule from the host computer 1, refers to the data of the standard loading quantity master for each type of pallet, and Mp = Rp / Ap (Mp is a pallet for transporting and storing products) Number, Rp is the number of products per lot, Ap is the standard number of loaded pallets, and p is the model number). That is, the number of products per lot or the number of products per pallet is determined so that the number of products per lot is A times (A is an integer) the number of products per pallet for transporting and storing products. After that, by calculating Cpn = Ap * Bpn (Cpn is the required number of parts, Bpn is the number of members, and n is the component number), the required number of parts for each model is calculated to create assembly process manufacturing data, which is then controlled for assembly. Send to computer 3. FIG. 1 shows the flow of the process of creating the assembly process manufacturing data. When the schedule is received from the host computer 1, the master computer 2 receives the total number of models x
When the model number p = 1, the pallet standard loading number A1 is taken out from the model-specific pallet standard loading number master to obtain the pallet number M1, and the component part number y is also taken out from the model-specific parts master. Number n =
In case of 1, the required number of parts C11 is the standard number of pallets loaded A1
Also, it is calculated from the model-specific parts master, and the number of pallet M1 records is written in the assembly process manufacturing data file. After repeating this y times, the model number p is incremented and the same process is repeated until the processes for all models are completed, and the assembly process manufacturing data file creation process is completed. The assembly process manufacturing data is composed of, for example, manufacturing data, line number, production order, model, number of parts, required part number and number of parts.

The assembly control computer 3 which controls the line 30 and returns the progress of the assembly to the master computer 2 starts the production based on the above-mentioned assembly process manufacturing data.
A parts supply request and a product take-back request are output to the warehouse management computer 4 that manages the parts, and the warehouse management computer 4 that receives the parts supplies the parts according to the parts supply request and issues a delivery instruction to the parts warehouse 40. At the same time, the storage instruction to the product warehouse 41 is issued. Parts allocation is performed by, for example, the allocation presence / absence flag of the corresponding record of the parts warehouse inventory file which is composed of a record including a shelf address, a part number, the number of parts stored in one bucket for transporting and storing the parts, and an allocation presence / absence flag. Do by standing.

Now, the model number p is 1, the standard pallet loading number A1 is 100, and the product number R1 per lot is 1000.
In order to produce a product that is
The number of components B1 for each component number n = 1
If 1 is 2, then the required number of parts C11 is A1 * B
11 = 100 * 2 = 200 pieces are registered in the assembly process manufacturing data, and when the warehouse management computer 4 is notified of this data, the warehouse management computer 4 allocates the number of buckets satisfying the required number of parts at that time. Flags will be set up and assigned, and the products will be delivered to the assembly line in sequence. At this time, the number of parts Epn stored per one bucket is stored in the parts warehouse 40 such that Epn = Cpn / Npn (Npn is the number of buckets). Can be done accurately. FIG. 3 shows a processing flow for obtaining the number of parts Epn.
You.

[0011]

As described above, according to the present invention, the product for each pallet is inevitably used in order to move to production after the parts required for this product are allocated in units of the number of products per pallet. Even if the product can be produced and parts run out in the middle of production, it will not cause a big obstacle to the assembly control, and the product warehouse will always receive a pallet with a specified number of products. , The utilization rate of product warehouse will be improved.

In addition, the number of parts to be stored per bucket for transporting and storing parts is calculated as follows:
By setting an integral multiple of the number of parts required for the number of products per piece, parts are allocated in bucket units, and it is possible to always deliver parts in bucket units. This eliminates the need for picking work and contributes to improving the automation level.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a calculation process of a component allocation number according to an embodiment of the present invention.

FIG. 2 is a system diagram of the above.

FIG. 3 Same as above, showing the calculation process of the number of parts per bucket
It is a flowchart.

[Explanation of symbols]

 2 Master computer 3 Assembly control computer 4 Warehouse management computer

Claims (2)

(57) [Claims] 1. An assembly progress information from an assembly control computer by a computer that controls assembly, a computer that manages inventory of a parts warehouse and a product warehouse, and a master computer that sends required information to these computers based on a production plan. When allocating parts that prompt the warehouse management computer to issue parts according to the above, lot division or palletization is performed so that the number of products per lot is an integer multiple of the number of products per pallet for product transport and storage. A parts allocation method characterized in that the number of products per item is determined and parts necessary for this product are allocated in units of the number of products per pallet when production is started. 2. The number of stored parts per bucket for transporting and storing parts is set to be an integral multiple of the number of parts required for the number of products per pallet for transporting and storing products.
The parts allocation method according to claim 1 , wherein the parts are allocated in bucket units .