SU489536A1 - Device for sorting and counting piece products by size - Google Patents

Description

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The invention relates to the field of automation of production processes and is intended to automate the sorting and accounting of piece goods transported on a conveyor.

Devices are known for sorting and metering piece goods by dimensions, consisting of a photo sensor and a clock generator connected to the inputs of the counting channels, each of which contains binary counters whose outputs are connected to the inputs of the matching blocks, and power amplifiers connected respectively to the inputs registering and executive units.

However, the known devices are structurally complex and unreliable in operation due to the large number of series-connected elements.

The purpose of the invention is to simplify the design and increase its usefulness.

This is achieved by the fact that the forbidding inputs of the bits of binary counters are connected to the output of the photo sensor, and the output of the block of coincidences of each channel is connected to the input of the power amplifier of the same channel through a differentiating circuit, and directly.

The functional diagram of the proposed device for sorting and recording paper products by dimensions into three counting channels is shown in the drawing.

The device contains the illuminator 1 of the generator 2 synchronized pulses connected to the inputs of channels 3-5 of the account, the illuminator 6 of the photo sensor 7 connected to the inhibiting inputs of the binary bits

counters 8-10 of each of the channels 3-5 account. The outputs of binary counters 8-10 are connected to the inputs of blocks 11. 12 matches. The output of the Block Matches of each channel account is connected via differentiating

circuits 13–15 to the inputs of amplifiers 16–18 of the power of the same channel, and to the inputs of the terminal bit of the counter and the amplifier of the power of the previous channel directly. Amplifiers of power of each channel of the account connect, nepa, respectively, with the inputs of recording units 19-21 and executive units 22-24. Executive contacts 25 of the lockout relay 26 are included in the supply circuit of the winding of the magnetic actuator of the conveyor.

With the passage of the transported product 27, by a dimension / t, the photosensor 7 is removed from the binary counters 8-10 and the generator 2 receives a certain number of pulses, for example, 16, pa inputs

counters 8-10, in which the number of

00001. After passing the product from the photo sensor 7, the inputs to the counters 8-10 are banned and their contents are erased at the same time. At the transition of the fifth bit of the counter 8 to the zero state, the trailing edge of the pulse is differentiated by the circuit 13, which is then amplified by the amplifier 16 and actuates the recording 19n executive 22 blocks.

With the passage of an item the size of generator 2, a greater number of pulses, for example, 18, are exhausted, and the bits of counters 8-10 record the number 01001. Signals from the outputs of the second and fifth bits of counter 9 are fed to the inputs of the coincidence unit 11 11, the signal closes the input of the amplifier 16 and erases the contents of the fifth digit of the counter 8. After passing the product of size k and the appearance of the count from the photo sensor 4, it prohibits the inputs of the counters 8-10 and erases their contents. The actions of elements 14, 17, 20 and 23 will be similar to those described above for elements 13, 16, 19 and 22 of channel 3 of the account.

The operation of the counting channels is similar to the operation of the counting channel 4, the only difference is that the signals from the corresponding bits of the binary counters will be received at the inputs of the matching blocks. So, for example, if the product counted in the counting channel 5 has a length and during the passage of which 20 pulses are received from the generator 2, the second signal to the coincidence unit 12 will be supplied from the third bit of the counter 10.

Selectivity is provided by feedback from the output of the block of coincidence of each subsequent channel of its account to the corresponding elements of each previous channel.

accounts. To eliminate the possibility of transporting products with the device for sorting off and counting piece goods by dimensions, the power supply to the control circuit of the magnetic motor starter is turned off.

the conveyor is fed through the closing contact 25 of the current relay 26.

Subject invention

A device for sorting and counting piece products by size, consisting of a photo sensor and a synchronized generator

impulses connected to the inputs of the counting channels, each of which contains binary counters, the outputs of which are connected to the inputs of the matching blocks, and power amplifiers connected respectively to

inputs of registering and executive units, characterized in that, in order to simplify the design and improve its reliability, prohibiting inputs of bits of binary counters are connected to the output of the photosensor, and the output of the coincidence unit of each channel is connected to the input of the power amplifier of the same channel through a differentiating circuit , and directly to the inputs of the terminal bit of the counter and the power amplifier of the previous channel.

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