Substrate carrying control method and substrate carrying control device for part assembly line

Abstract

Provided is a low-cost substrate carrying control method and a substrate carrying control device for a part assembly line, even for an overranging substrate that a part is arranged beyond an end portion of the substrate, the overranging substrate also can be accurately stopped at an assembling position and a standby position of a part assembling machine. The substrate carrying control method for the part assembly line formed by a plurality of part assembling machines which are arranged in a line comprises: an overranging amount calculating process for calculating an overranging amount when the part arranged on the substrate stopped at the assembling position is arranged beyond the end portion of the substrate in a carrying direction in the each part assembling machine; an overranging amount transmitting process for transmitting the overranging amount successively before carrying the overranging substrate successively towards the part assembling machines at a downstream side; and an overranging substrate carrying process for carrying the overranging substrate with a distance obtained by subtracting the overranging amount from a prescribed distance in the part assembling machines at a downstream side, so as to enable the overranging substrate to stop at a prescribed position.

Description

technical field [0001] The present invention relates to a substrate conveyance control method and a substrate conveyance control device of a component mounting line in which a plurality of component mounters are arranged in series, and more specifically, relates to control of a stop position beyond a substrate in which components protrude from the end of the substrate. Background technique [0002] There are solder printing machines, parts mounting machines, reflow machines, board inspection machines, etc. as board production machines that manufacture boards on which many parts are mounted, and board production lines are generally constructed by connecting them with board transfer devices. Furthermore, in many cases, a plurality of modular parts mounting machines are arranged in series to constitute a parts mounting line. The substrate transfer device plays a role of transferring substrates sequentially between these substrate production machines, and transporting the substr...

AI Technical Summary

Problems solved by technology

However, this method does not correspond to the case where the mounted part protrudes from the end of the substrate

It is difficult to accurately detect the original substrate end only by using the diffused light and the convergent light separately when considering that the type of part, the overhang (overlength), and the overhang width vary depending on the type of substrate to be produced. department

Therefore, it is difficult to accurately stop the substrate at a predetermined position

Furthermore, the method of Patent Document 1 requires a plurality of types of sensors and their selective control mechanism, which has the problem of high cost.

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