SU455247A1 - Automatic purple - Google Patents

Description

one

This invention relates to a weight measuring technique.

Known bouquets containing sliding glasses, cut-off knife and knife-valve c. actuators, a weigher with a code converter and a software control unit with a distributor, keys and elements, prohibition, delays.

The purpose of the invention is to improve the accuracy and reliability of the device.

This is achieved by the fact that, in Purke, the motors of the actuators for expanding the cups, the shut-off knife and the shutter knife are connected to the triggers, the first inputs of which are connected to the distributor, the second inputs are connected to the keys connected respectively to the executive mechanisms of the glasses and knives, the first outputs of the triggers through the delay elements connected to the first inputs of the prohibition elements, the outputs of which through the element are connected to the distribution control key, and the second outputs of the flip-flops to the second inputs of the prohibition elements.

The drawing shows the scheme of the proposed purple.

It consists of a receiving hopper 1 with grain, a knife-flap 2, a cup 3 of coarse dosing, a load 4, a shut-off knife 5, a cup 6 of an exact dosage, a slat 7, an executive

engines 8-13, triggers 14-19, keys 2U-20, delay elements 26-29, prohibition elements 30-33, weight tester 34, photoelectric code converter 35,

decoder 36, block 37 of the digital display element "OR 38, block 39 alarm, key 40, the distributor-il, the start button 42.

The purka works as follows.

In the receiving hopper 1 fall asleep grain. With the push of the start button 42, the entire cycle of determining the nature of the grain occurs automatically. The command for the operation of each mechanism comes from the distributor 41 for a given

cycle.

The actuator motor 10 is turned on, the shutter knife 2 is opened, and the grain from the receiving bin 1 enters the coarse-dish 3. The reverse movement of the engine knife-shutter closes. A command is then given to the motor 11, which opens the shut-off knife 5, in which case the load falls and carries the grain. The grain is compacted by the method of "dropping the weight in the beaker 6 in the exact dosage. The engine receives a command to reverse, with the result that a shut-off zero is triggered, which cuts off a liter measure of grain. Glasses of accurate and coarse dosing are moved apart using engines 9 and 12, respectively. The grains left in the coarsely dispensed glass are discarded; a liter measure of grain falls on the weighing instrument 34, where the measurement of the grain, that is, the definition of nature. The signal from the photoelectric code converter 35 is fed to the decoder 36, converting the binary-decimal code to the decimal, then to the digital grain display unit 37. At the end of the measurement, all mechanisms occupy the initial state — glasses 3 and 6 are shifted, knife 5 is closed, lifting the weight, raised by the rail 7 upwards. Grain from the weighing cup is discarded. The control motors 8-13 are controlled through triggers 14-19, to the inputs of which a command is received from the distributor 41. The work of the individual mechanisms is considered on the example of the operation of a shut-off knife. The work of the other mechanisms is similar. Io to the command of the distributor 41 trigger 17, having two stable positions, causes a state in which the signal from its output goes to the executive motor I and to the delay element 28. The engine 11 communicates the movement of the knife 5, supporting the load, and the load falls. If the knife is completely out of the groove, then the key 23, mechanically connected to the engine, gives a command to the trigger 17, which is triggered and, assuming its initial state, starts the engine 11 to return the knife. At the same time from the second output of the trigger 17 to the element 32 of the ban receives the signal of the ban, and the delay signal from the output of the element 28 does not pass to the element "OR 38. The installation continues to work on a given cycle. In case of failure for any reason, in 40 work of a shut-off knife a coarsely dispensing glass, containing grain, is advanced - the grain spills, falls on the rail (wedges the rail control mechanism). Cargo gets stuck in a glass of coarse dosage. To detect the emergency position of the engine 11, the key 23 serves. If, in an emergency condition, the engine does not reach the position at which the key 23 operates, then the trigger 17 does not receive a signal. Element 32 does not receive a prohibition signal, and a signal from the delay line after a specified (fixed) period of time passes through element 32 to the element OR 38 and then to the key 40, which stops the operation of the distributor 41, and to the alarm unit 39. To reveal the state of mechanisms for controlling the coarse and precise dosage cups and the shutter knife, similar circuits with triggers 15, 1b and 17, delay elements 26, 27 and 29 and elements 30, 31 and 33 are used. Subject of the invention Automatic nurka containing sliding glasses, shut-off knife and knife-damper with actuators, a weighing device with a code converter and a software control unit with a distributor, keys and elements "OR, prohibition, delay, characterized in that, in order to increase accuracy and reliability, actuators for expanding glasses, shut-off knife and knife-damper are connected with triggers, the first inputs of which are connected to the distributor, the second inputs are connected to keys connected respectively to the executive mechanisms of glasses and knives, the first outputs of the trigger through delay elements are connected to the first inputs prohibition elements, the outputs of which through the OR element are connected to the distributor control key, and the second outputs of the flip-flops are connected to the second inputs of the prohibition elements.