Devices for rejecting inferior products from a product flow

Abstract

A device (1, 5, 17) for rejecting inferior products (2a, 2b) from a product flow (3), comprising: a recognition unit (5, 5a, 5b) designed to detect said products flow (3); and a computer unit (6) designed to obtain characteristic data of said product flow (3) from said identification unit (5, 5a, 5b), and identify from said characteristic data Inferior products (2a, 2b) in the product stream (3). The device (1, 5, 17) has compressed air-rejection units (7) controlled by the computer unit (6) and has deflector elements-rejection units (8), which are designed to passively remove Inferior products (2a, 2b) are excluded from the product flow (3). The computer unit (6) is designed to classify the identified inferior products (2a, 2b) into first and second grade inferior products (2a, 2b) and to control the compressed air-rejection unit (7 ) actively rejects said first class of inferior products (2a), and controls said deflection member-rejecting unit (8) to passively reject said second class of inferior products (2b).

Description

technical field [0001] The invention relates to a device for rejecting inferior products from a product flow of superior and inferior products moving in a conveying direction. Background technique [0002] Known from the patent US 9,452,450 B2 is a device for rejecting inferior products from a product flow consisting of high-quality products and inferior products moving in the conveying direction, the device comprising an optical recognition unit, a computer unit, a compressed air unit The first rejecting unit constituted and the second rejecting unit constituted by a controllable mechanical rod. The optical recognition unit, the computer unit, the first and the second rejection unit are connected to each other for exchanging data. The first and the second rejecting unit are arranged downstream of the optical recognition unit on the product flow in the conveying direction. The first rejecting unit and the second rejecting unit are arranged adjacent to each other on the sam...

AI Technical Summary

Problems solved by technology

[0003] However, this known device has been shown to be disadvantageous: since the first and second rejecting units are arranged directly side by side on the same side of the product flow, and thus lead to narrow space conditions, these rejecting units only have a small installation size

However, due to the small possible installation size of these rejecting units, the following disadvantages arise: especially for very small products and very large and heavy products, the performance of these rejecting units is limited both in terms of the quality that can be rejected and in terms of speed. are too low to exclude inferior products from the product stream

Although it is possible to increase the spacing between these reject units, this leads to an undesired lengthening of the device, making it impossible to use this type of equipment in superordinate systems such as washing, sorting and packaging equipment due to installation requirements. device

Also, due to the close proximity of these culling units, maintenance of these culling units is difficult as they are difficult to reach

[0004] Another problem with sorting mechanisms is that the individual bad products can vary greatly in shape, size and weight, making it difficult, often even impossible, to design a reject unit suitable for rejecting all bad products actually present in the product flow

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