SU733593A2 - Automatic machine for separating silkworm eggs by colour - Google Patents

Description

The invention relates to the field of agriculture, namely, sericulture, and can be used in the heating plants and the studs. A known machine for sorting by color and counting objects, which contains a device for single-piece feeding of greners and a photoelectronic unit. According to the main author. St. No. 646966 is known an automaton comprising a mechanical part that provides for single-piece feeding of griences, electric drives, an illuminator, a device for detecting and recognizing griences based on photoelectric multipliers, an electronic part, and an actuator. To improve the quality of the separation of the grene and the performance of the automaton by ensuring the pitch supply of the grene and following it into a chain one by one, the machine is equipped with a device for feeding the grene, forming mechanism and locking the grene. A disadvantage of the known devices is that they do not: provide accurate dividing of the grains and performance. The purpose of the invention is to improve the quality of sorting and productivity. The goal is achieved by the fact that the nodes ены) are slaughtered and accurate sorting of grains, which are made from series-connected phototransistors with a signal amplifier and a two-sided limiter with a single vibrator. FIG. 1 shows a schematic diagram of an automaton for dividing the creeps by color; in fig. 2 is a block diagram of the electronic unit of each node. The sorting machine comprises a coarse screening unit with illuminator 1 greny 2, phototransistor 3, actuator 4, electronic unit 5 and power supply unit 6. Precise sorting unit also contains illuminator 7, photoresistor 8,

the actuator 9 and the electronic unit Yu,

The electronic unit of each node includes a phototransistor 3, an actuator 4, an electronic unit 5, a two-way limiter 11, a pulse shaper 12, a one-shot 13 and a power source 6.

The principle of operation of the automaton is explained by the example of a single node.

As in FIG. 1, grenna 2, via the mechanical transport unit, drops to the position of the coarse sort analysis of the node, where it is illuminated by a polarized light source from illuminator 1. The rays of light, reflected from it, enter the phototransistor 3, which produces an electrical impulse. Due to the fact that the light grena has the ability to reflect light more, the amplitude of the pulse from the light green is much greater than from the dark one.

In addition, the shell of the labyrinth of labeled breeds No.. There is a light (yellow, pale yellow and pink) and dark (gray) color. Due to the different colors of the griences, their reflectivity varies in a certain optical range.

The signal from the output of the phototransistor 3 enters the electronic unit 5 (Fig.2) The amplified amplified signal enters a two-way limiter 11, which has the ability to cut off the signal, for example, from dark crests on the lower side, and signals from light crests - on the upper side, t . the signal is limited on both sides in amplitude.

The output pulse of the limiter 11 enters the pulse shaper 12 which form sharp-pointed short pulses to start the one-shot 13, where the latter produce pulses of two polarities, sufficient in amplitude and duration to trigger the actuator 4.

As an executive mechanism, a two-pole polarized relay is used, which provides a reverse connection of its windings. Reversing the windings of the actuator creates a clear response in its operating frequency range.

For example, the actuator knocks the bright green with a pulse of one polarity into the receiving hopper for bright greens.

By firing a shot, the relay returns to its original state through a pulse to another field.

The machine is tuned in such a way that if a dark graene is at the analysis position, the signal does not enter the executive mechanisms, and the graene transport is fed further, then with the help of guides it enters the hopper for dark grains.

The coarse sorting unit with illuminator 1 is configured in such a way that, due to its frequency response, its actuator knocks the bright green (about 8O-85%) out of the common chain of bright Greek women sent for analysis. There is a thinning of the grenes in the common chain.

Next, the sparse chain of grains passes through the fine sorting unit, which knocks out the light green tossed out from the coarse sorting unit and out of the chain.

Claims (1)

Invention Formula Machine for dividing the grains by color by ed. St. N2 646966, characterized in that, in order to improve the quality of grading grains and productivity, coarse and fine grading nodes are inserted into the machine, which are made from series-connected phototransistors with a signal amplifier and a two-sided limiter with a single-vibration.