Quantitative on-demand-distribution method and device for scattered articles and difference compensation distribution method

Abstract

An quantitative on-demand-distribution method for scattered articles comprises the steps that 1, the articles are supplied to a first conveyor through a feeder, divided into at least one layer of article columns by the first conveyor and output to a second conveyor; 2, the articles of each article column are output through the first conveyor and then fall into counting grids of the corresponding column of the surface of the second conveyor; 3, the articles in the counting grids are accurately counted; and 4, the articles in the counting grids are distributed into storage devices according to the demanded quantity. According to the quantitative on-demand-distribution method, the articles are divided into a plurality of article columns on the surface of the first conveyor through the first conveyor and output into the counting grids on the surface of the second conveyor one by one, the number of the articles in each counting grid is controlled to be one or zero, and after counting is accurately conducted through a counting mechanism and the articles move by a section of counting grids, the precise number of the articles output by the second conveyor can be obtained. By means of the quantitative on-demand-distribution method, any demanded number of the articles can be output accurately, and distribution can be conducted when a user needs to obtain the random demanded number of articles.

Description

technical field [0001] The invention belongs to the technical field of quantitative distribution of discrete articles, in particular to a method and device for on-demand quantitative distribution of discrete articles, and a compensation distribution method. Background technique [0002] The technology of distributing discrete items in a quantitative manner is widely used in the field of packaging of tablets, candy, seeds, parts and other items. These distribution technologies include mechanical, photoelectric, multi-channel, and visual stack counting methods. The visual method is a breakthrough in particle counting technology in recent years. Through the resolution of the visual system, long-distance imaging and counting of the entire stack And other characteristics, so that the function, production capacity and volume of the equipment can be greatly optimized. In the visual counting technology, some methods are used to calculate the target quantity, which involves randomly...

AI Technical Summary

Problems solved by technology

In the multi-channel photoelectric counting method, the items are counted independently and individually when they fall through multiple single-row channels. When the accumulated quantity reaches the target quantity, the items are separated by the gates under each channel to obtain the target quantity. In principle, because the items are counted individually, this release method can meet the requirements of any variable target quantity. However, since the items need to be output through the vibrating conveyor, the gate is closed after the target quantity is reached, and the conveyor stops, but , there will still be items that continue to fall due to inertia. These items are counted and temporarily stored on the gate for the next allocation. Then, if the target quantity of the next demand is less than the temporary storage quantity on the gate, the next time distribution amount is impossible to achieve

Therefore, in order to reduce the overflow of the temporary storage quantity, the speed of the conveyor can only be slowed down so that the possible temporary storage quantity will not be greater than 1, which also slows down the production capacity of the entire system

At the same time, since the counting of items and the action of the gate are connected together, that is, when the photoelectric sensor sees the last item of the target quantity, the gate will act instantaneously to separate the next item, and when the gate response is slightly delayed, may injure items or cause counting errors

In the counting method of making up the difference mentioned above, after obtaining a random first allocation amount, it is necessary to allocate another amount of making up the difference to reach the target amount. It is a small quantity value, so the function of making up the difference is often a capacity bottleneck of this kind of difference making up counting technology

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