JPS63180450A - Replacement of machine kind in conveyor type physical distribution system - Google Patents

Abstract

PURPOSE:To increase the production efficiency by installing a 1-bit memory pin onto a pallet jig and turning ON only one memory pin when the kind of work is changed and by detecting said turning ON in each process and confirming the next machine group succeedingly. CONSTITUTION:Production control is performed by an upper rank computer 23. When the counting in a memory pin setting device 24 reaches the production quantity of the present machine group, the computer 23 clears the counting, and an instruction is transmitted so that the memory pin of the next pallet jig 21 is set to ON-state. When the top pallet 21 of the next machine group in which the memory pin is turned ON reaches an automatic machine 25, the top of the next machine group is detected, and the work corresponding to the next machine group is carried out succeedingly. Through this method, the increase of dimension of the equipment, cost up, and increase of processing time can be prevented only by adding the 1-bit information onto the pallet jig 21, and the machine kind replacing work can be lightened.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for changing models in a processing and assembly line for industrial products and the like.

[Conventional technology] When processing and assembling industrial products by transporting pallet jigs on a conveyor belt, in order to produce the next model, the current model must be cleared from the top and prepared for the next model. The next model can be switched from one to the other, or the information necessary for switching to the next model can be attached to a pallet jig as multiple memory pins, bar codes, magnetic cards, etc., and the model can be switched one after another.

Problems to be Solved by the Invention When changing models, multiple pieces of information are required for each model for each process, but when adding this to the pallet jig, the amount of information is Depending on the number of pallet memory pins, or barcode.

Magnetic cards and the like simply store information and send it to subsequent processes, and processing complex and large amounts of information using only external equipment requires larger equipment.

There are problems such as high cost and increased processing time.

Means for Solving the Problems As a means for solving the above problems, in the present invention, the pallet jig is provided with a 1-bit memory pin for notifying model change.

When changing the operating model, the pin is turned ON, and everything that flows after this pallet jig is promised to be the next model.In each process, information related to each model is defined in advance on a host computer, etc., and stored. When the pin is turned on, each process receives the information and prepares for the next model. Then, the next model is automatically produced, and each process is changed over in sequence. This method simplifies the steps when changing models and enables an efficient production system.

Example Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a pallet jig used in the model switching method of the present invention. A memory pin 2 is provided in a part of the pallet jig 1, and by inserting and removing the memory pin 2, one set of information is provided to each process as the timing for model switching.

FIG. 2 is a configuration diagram of a conveyor 7 stem employing the model switching method according to the present invention. 21 is the pallet jig shown in FIG. 1, 22 is a conveyor for conveying the pallet jig 21, and 23
24 is a host computer that performs production control of the conveyor system, and 24 confirms the number of pallets produced by counting the number of passing pallet jigs 21, and turns on the storage bin of the pallet jigs 21.

This is a memory pin setting device that turns it off. Reference numeral 26 denotes an automatic machine that performs operations such as machining, assembling, etc. of the workpieces on the pallet jig 21. The host computer 23 gives model information to each automatic machine 25 and also gives commands to the memory pin setting device 24.

A model switching method in the conveyor system configured as described above will be explained.

In the conveyor system shown in FIG. 2, production control is performed by a host computer 23. When the count of the memory pin setting device 24 reaches the production number of the current model, the host computer 23
3 clears the count and issues a command to set the memory bin of the next pallet jig 21 to ON. Memory pin t-O
When the first pallet 21 of the next model set to N arrives at the automatic machine 25, the automatic machine 26 detects that it is the first pallet of the next model, and receives information about the next model from the host computer 23.
After that, we will work on the next model. Subsequent automatic machines sequentially switch models in the same manner. After the first pallet jig 21 with the memory pin iON goes through one cycle, the memory pin setting device 24
turns storage bin 1 OFF.

After the above operation is completed, the next model is produced until the scheduled production quantity is counted.

Effects of the Invention As is clear from the above explanation, according to the model switching method of the present invention, it is possible to reduce the amount of information processing by external devices by simply adding all 1-bit information to the pallet jig. This can prevent the accompanying increase in equipment size, high suction, and processing time. In addition, the work required to change models can be reduced, increasing production efficiency and making it easier.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a pallet jig used in the model switching method of the present invention, and FIG. 2 is a configuration diagram of a conveyor system employing the same method. 1.21...Pallet jig, 2...Storage bin, 23...Upper computer, 24...
...Memory pin setting device, 26... Automatic machine. 1--Liberette Night Smell 2-11/Keibin Figure 1

Claims (1)

[Claims] In conveyor logistics, when a workpiece on a pallet jig is processed or assembled by an automatic machine in each process during conveyor logistics, a 1-bit memory pin is installed on the pallet jig to change the model of the workpiece. When doing so, turn on the memory pin of only one of the multiple pallet jigs,
A model changeover method for conveyor logistics that detects this in each process and guarantees the next model.