JPH04315500A - Method of controlling supply of component - Google Patents

Abstract

PURPOSE:To realize supply of a component without waste by supplying necessary number of components of necessary types to a supply kit to be used as component supply means of an automatic mounting machine. CONSTITUTION:CAD information including type and quantity of necessary components to form one circuit board and production control information including the number of sheets per one lot of the boards are input to an arithmetic controller 1, which calculates the type and quantity of the components necessary for the lot and supplies the necessary number of the components of the necessary type for the lot to a supply kit 3 having a plurality of feeder units 7.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention provides a supply kit used as a component supply means in an automatic mounting machine for mounting components on a printed circuit board, thereby eliminating waste by supplying the necessary number of components of the required type. This invention relates to a parts supply control method that realizes parts supply.

0002

[Prior Art] Conventionally, the component supply means of an automatic mounting machine has a feeder unit corresponding to each type of electronic component to be mounted on a printed circuit board. By repeating a component mounting operation in which electronic components are taken out and sequentially mounted onto a printed circuit board many times, a situation occurs in which the electronic components held by the feeder unit become empty. In this case, conventionally, the empty feeder unit has been manually replenished with electronic components one by one, or the empty feeder unit has been replaced with a new feeder unit containing parts.

0003

[Problems to be Solved by the Invention] In the above-mentioned conventional case, while some feeder units need to be replenished or replaced before the number of circuit boards scheduled to be produced in one lot is reached, there are also feeder units that need to be replaced even after the required number of circuit boards are produced. There is also the problem that feeder units with a large number of remaining parts may be produced. This necessitates the trouble of stopping the automatic mounting machine while producing one lot of circuit boards, and collecting and storing surplus parts after producing one lot of circuit boards, causing unnecessary confusion at the production site.

[0004] In view of the above points, the present invention stores the necessary number of parts of the type required for one lot in a supply kit used as a parts supply means of an automatic placement machine. It is an object of the present invention to provide a component supply control method that prevents the occurrence of component shortages and component surpluses during mounting operations and improves productivity.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides CAD information including the types and quantities of parts necessary to create one circuit board, and one part of the circuit board.
Production management information including the number of parts to be produced per lot is input to the arithmetic control unit, which calculates the type and quantity of parts required for the lot, and applies it to the supply kit with multiple feeder units. It is characterized by supplying the required number of parts of the required type for the lot.

[0006]

[Function] In the parts supply control method of the present invention, the required number of parts of the type required for one lot can be placed in a supply kit, and this supply kit can be used as a parts supply means of an automatic placement machine. As a result, it is possible to eliminate the trouble of replenishing parts in the middle of the parts mounting process of the lot, and also to eliminate the surplus of parts after the completion of mounting of one lot, thereby solving problems such as collection and storage of parts. In addition, by preparing such a supply kit for each lot in advance, the parts mounting machine can automatically replace the supply kit that becomes vacant after the end of one lot with a supply kit corresponding to the next lot. It can also be installed on the machine, saving labor when replacing the supply kit.

[0007]

Embodiments Hereinafter, embodiments of the parts supply control method according to the present invention will be described with reference to the drawings.

In FIG. 1, 1 is an arithmetic control unit, 2 is an editing machine, and 3 is a supply kit.
CAD information from a computer-aided design (Computer Aided Design) device and production management information from a production management device are input. The editing machine 2 includes a large number of component supply sources 4 each capable of supplying electronic components of different types,
The structure as a whole is capable of supplying various types of electronic components, and a counter 6 is disposed in the supply path 5 of each component supply source 4, so that the number of supplied components can be counted. The count values of each counter 6 are also input to the arithmetic control section 1. The supply kit 3 includes a large number of feeder units 7, and each feeder unit 7 has a function of supplying one type of electronic component when the supply kit 3 is installed in an automatic placement machine.

Next, the operation of the above embodiment will be explained. CAD
The information includes information about the type and quantity of parts required to produce one circuit board, and the production management information includes information about the number of circuit boards produced per lot. Therefore, the arithmetic control unit 1
The type and quantity of parts required for the lot are calculated from the AD information and production control information. For example, variety #1 has a quantity of N
1, #2 is calculated as N2, #3 is calculated as N3, etc., #i is calculated as Ni. Then, the arithmetic control unit 1 outputs this calculation result to the editing machine 2 to control the editing machine 2, and the model number of the editing machine 2 is
N1 parts of type #1 are fed from the parts supply source 4 of No. 1 to the feeder unit 7 of the supply kit 3. Similarly,
N2 to N parts of types #2 to #i are supplied to each feeder unit of the supply kit 3 from the parts supply source of types #2 to #i.
Send i pieces each. The number of each component can be accurately managed by counting the number with each counter 6 and recognizing the counting result with the arithmetic control section 1. In this way, the supply kit 3 stores the required number of electronic components of the types necessary for the electronic component mounting process for one lot.

[0010] Therefore, by equipping such a supply kit 3 as a component supply means of an automatic mounting machine for mounting electronic components onto a printed circuit board, the electronic component mounting work can be carried out efficiently. In other words, parts will no longer run out during the electronic component mounting process for one lot, and there will be no need to stop the automatic mounting machine, replace the feeder unit, or replenish the feeder unit with electronic components. Moreover, the problem of parts collection and storage caused by surplus parts after the completion of the mounting process for one lot can also be solved.

Furthermore, if supply kits each containing the required number of electronic components of the required type are prepared in advance for multiple lots, when one lot is finished in the automatic placement machine, empty supply kits can be filled. Instead, the automatic placement machine can be equipped with a supply kit corresponding to the next lot.
It also becomes possible to automatically exchange a removable supply kit for the automatic mounting machine.

0012

[Effects of the Invention] As explained above, according to the parts supply control method of the present invention, the supply kit used as a parts supply means of an automatic placement machine can contain the necessary number of parts of the type required for one lot. It can be stored and prevents the occurrence of parts shortage or parts surplus during the parts mounting operation of one lot.
Productivity can be improved.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a component supply control method according to the present invention.

[Explanation of symbols]

1 Arithmetic control section 2 Editing machine 3 Supply kit 4 Parts supply source 6 Counter 7 Feeder unit

Claims (1)

[Claims] [Claim 1] CAD information including the type and quantity of parts necessary to produce one circuit board, and production management information including the number of parts to be produced per lot of the circuit board, are input to the arithmetic control unit. , the arithmetic control unit calculates the type and quantity of parts required for the lot, and supplies the required number of parts of the type required for the lot to a supply kit having a plurality of feeder units. Parts supply control method.