JP3440109B2 - How to replenish components to a running electronic component mounter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of replenishing an operating electronic component mounter with components in order to increase the operating rate of the electronic component mounter.

[0002]

2. Description of the Related Art In recent years, efforts have been made to improve the operating rate such as unmanned operation for 24 hours at a production site using an electronic component mounting machine in order to improve productivity. One of the things that affects the operating rate is that when the mounter is running, when the remaining amount of the part set in the mounter becomes low, the mounter's There is a problem of whether to stop the operation.

An example of a conventional component replenishment method for an electronic component mounter will be described. FIG. 2 is a diagram showing an example of an electronic component mounter in which the component supply unit moves, and FIG. 3 is a flowchart of component replenishment. In FIG. 2, 1
Is a component mounting portion on a board, and a component receiving portion is on the back thereof. The components are set in the cassette 2, and the cassettes 2 are lined up in the cassette mounting unit 3 by the number of types of components to be mounted. At the time of mounting, the cassette 2 of the designated component is moved to and taken in by the component taking-in section. A switch 4 sets whether or not the component supply unit can be moved.

In the case of component replenishment for a component shortage in the case where the component supply section is composed of one set, first, it is judged whether or not a component shortage has occurred in step 202 during the production of step 201. This stores the number of parts set in advance and subtracts the number of mounted parts to find out how many are left. Based on this, the production operation is stopped in step 203, and the component supply unit is moved to a component replenishable position in step 204. Therefore, in step 205, parts are replenished,
In step 206, it is confirmed that the parts supply has been completed, and in step 207, continuous production is restarted.

[0005]

As in the above-mentioned conventional example,
In the case of a product having one set of parts supply parts, when the parts were out of stock, the production had to be interrupted, the parts supply part stopped, and the parts replenished each time.

On the other hand, there is also a structure in which two sets of parts supply units are provided, and the two sets are alternately arranged so that one of them is stopped during the supply operation and the parts are replenished during the stop.
In such a configuration, there is a problem that the component supply section requires a large space and the weight becomes heavy.

The present invention is intended to solve the above-mentioned problems of the prior art, and it is possible to replenish the components with a single component supply unit and without the electronic component mounting machine interrupting the production. The purpose of the present invention is to provide a method for supplying various parts.

[0008]

To achieve the above object, according to the present invention, when the electronic component mounting machine is operating with the first mounting program, the remaining amount of the components set in the component supply section is reduced. When a reduced number of parts appear, a step of informing the name of the part and the setting position in the part supply unit, and selecting a large number of parts of the same type to be mounted on one board from other parts, The step of creating a second mounting program for preferentially and continuously mounting the selected components, and the first mounting at the time when the board currently being mounted finishes mounting and the next board starts mounting. It is composed of a step of automatically switching from a program to a second mounting program and a step of replenishing the component whose remaining amount is low during the mounting operation of the selected component.

[0009]

According to this configuration, first, the mounting operation is performed by the first mounting program which is the most efficient and has the shortest production time per substrate. Therefore, when a component with a low remaining amount comes out, the mounter notifies the operator of the component name, the installation position in the component supply unit, and the like, and automatically creates a second mounting program.

The second mounting program is a component other than the component whose remaining amount is low, and is a program for preferentially and consecutively mounting a large number of components of the same type mounted on one board. . And, even if there is a component out warning, there is still a sufficient number available for the board being mounted at that time, so after the board is mounted, when the mounting operation of the next board starts, The first mounting program automatically switches to the second mounting program.

Therefore, a large number of parts to be mounted are preferentially and continuously mounted. For example, if the mounting time per part of the part is 1 second and 60 parts are mounted on the board, the parts are mounted. The supply unit will not move for 60 seconds and the mounting operation will continue. Therefore, the operator who has been preparing to replenish the parts since the notification of out-of-parts may replenish the out-of-component parts in the meantime. At that time, it is premised that the position of the component to be replenished (the cassette position) is a position at which replenishment is possible.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The component replenishing method in one embodiment of the present invention will be described in detail below with reference to the flowchart of FIG.
First of all, the program is for the production of electronic component mounter board 1
The operation data is such that the production time per sheet is the shortest, and in step 101, the program is produced by this program.

In step 102, if the remaining amount of the part reaches the warning value set for each part, the part name advance notice function automatically indicates the part name and the installation position on the part supply unit by CRT. Display on top and inform the operator. Here, the warning value must take into consideration the processing time of step 103. The operator prepares the spare parts according to the notification.

In step 103, a program for automatically continuing the state in which the component supply unit stops moving for as long as possible is automatically created. When replenishing a part, the program must be designed so that the set position of the part is at a replenishable position. For example, it is difficult to replenish when it is located in the vicinity of the component intake portion.

In step 104, it is judged whether or not the mounting of the board currently in production is completed, as the timing for switching from the program currently being executed to the program. In step 105, the program is switched to the program. Do it automatically.

In step 106, the operator determines whether or not the parts can be replenished, and if so, the switch 4 (see FIG. 2) is turned off to fix the parts supply unit so that it cannot be moved. However, even in a fixed state, since many parts to be mounted are continuously mounted, production is continued.

In step 107, the parts are replenished by the operator. For the sake of safety, the component supply unit is controlled so as not to move while the operator replenishes the components. In step 108, in this safety control, the operator determines whether or not the replenishment of one type of component has been completed. If the operation is completed, the operator turns on the switch 4 so that the component supply unit can be moved.

In step 109, it is determined that all the parts have been replenished, and in step 110, it is determined that the mounting of the board currently in production is completed. Here, in step 111, switching from program to program is automatically performed, and thereafter, production in the program is continued as in step 112.

However, step 108 or step 109
If it is necessary to move the component supply unit in order to continue the production even though the component supply has not been completed, the determination as to whether to stop the production operation is performed in step 113. In step 114, the production operation is stopped, in step 115, it is judged by the operator whether or not the production operation may be resumed, and in step 116, the continuous production by the program is resumed.

[0020]

As described above, according to the present invention,
Even if the electronic component mounter runs out of parts during operation, parts can be replenished while the production operation of the mounter continues.
There is an effect that the operation rate of the electronic component mounter can be improved and the productivity can be improved.

[Brief description of drawings]

FIG. 1 is a flowchart of an embodiment of the present invention.

FIG. 2 is a perspective view of an electronic component mounter having a set of component supply units.

FIG. 3 is a flowchart of a conventional example.

[Explanation of symbols]

1 ... Component mounting part, 2 ... Cassette, 3 ... Cassette mounting part, 4 ... Switch.

Claims (2)

(57) [Claims] 1. When the electronic component mounting machine is operating with the first mounting program and a component set in the component supply unit has a low remaining amount, the component name and the component supply unit are output. And a step of notifying the set position in the step of selecting a plurality of parts of the same type to be mounted on one board from other parts, and mounting the selected parts in succession with priority. A step of creating a mounting program; a step of automatically switching from the first mounting program to a second mounting program when the board currently being mounted finishes mounting and the mounting of the next board starts; And a step of replenishing the component whose remaining amount is low during the mounting operation of the selected component. 2. A step of returning from the second mounting program to the first mounting program at the time when mounting of the next board is started after the supply of the parts whose remaining amount is low is completed. The method of replenishing components to an operating electronic component mounter according to claim 1.