JPS5944917B2 - Color sorting machine outflow grain display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for indicating changes in the amount of grain flowing out of a feed hopper of a color sorter.

In conventionally known color sorting machines, a light-receiving element detects foreign matter mixed in grains, i.e., different-colored grains or particles other than grains, and the foreign matter is scattered and sorted by a sorting unit. Even if the contamination rate of foreign substances increases dramatically, the same amount of grain will flow out as when the contamination rate is low, so since there is a limit to the sorting capacity (number of operations) of the sorting device, the sorting accuracy may be reduced, or vice versa. Even if the rate of foreign matter contamination is low and the sorting capacity of the sorting unit is sufficient, unless the supply amount is increased, the operation will continue at low efficiency and efficient sorting work will not be possible. However, there was a problem in that it required manpower.

In order to solve this problem, an automatic control device for color sorting machines invented by the present applicant was published in Japanese Patent Application No. 53-16290.
This device controls the amplitude of the electromagnet in the supply device in response to the increase or decrease in the operating frequency of the sorting actuator, which is activated by the foreign object detection signal of the light receiving element, and improves the sorting efficiency of the sorting actuator. It is possible to increase or decrease the amount of grain fed within a range to balance the foreign matter contamination rate and flow rate, and to maximize the sorting rate and capacity. It was not possible to confirm whether the raw material grains were mixed with foreign substances or not, and it was also difficult to determine whether there were irregularities in the foreign matter in the raw material grains.

The present invention has been devised and improved in view of the above-mentioned shortcomings, and includes a control circuit so that when the contamination rate of foreign substances changes, the sorting body operates in accordance with the contamination rate and performs sorting within the sorting limits. A light emitting diode is provided and operates in response to the output signal, which communicates an output signal that increases or decreases with respect to a reference number of activations to an electromagnet of the vibration feeding device to increase or decrease its amplitude, thereby controlling the amount of grain flowing out from the feeding hopper. It displays the operating status of its automatic control and changes in the amount of grain flowing out from the supply hopper, and the display allows you to check the degree of contamination of foreign substances in raw grains and the condition of spots, or to check the suitability according to the grains flowing out. The present invention provides a display device for selecting the shape of the downflow gutter and setting the inclination angle of the downflow gutter, thereby performing an efficient sorting operation.

The present invention will be explained with reference to embodiment figures.

1 and 2, reference numeral 1 in the figures is a sorting machine frame, and a vibration device 2 constituting a vibration supply device 3 is installed on the upper part of the machine frame 1, and a supply hopper 4 is installed on the supply side. At the same time, a downflow gutter 5 connected to the discharge side is mounted and fixed, and a light receiving element 8, an injection nozzle 9, and a light source 10 are respectively disposed at the lower part of the downflow gutter 5 at its front and back sides 6, 7. The light source 10 is connected to the chamber frame 12 of the photoelectric sorting chamber 11, and the light source 10 is connected to the chamber frame 12 of the photoelectric sorting chamber 11, and the light source 10
The light receiving element 8 detects the change in the amount of light obtained by irradiating the light from The different color particles are separated by the blast action of the chamber frame 12 and discharged from the different color particle discharge port 15 at the bottom of the chamber frame 12, and the sorted grains are taken out of the machine from the sorted paddy discharge port 17 of the grain collection cylinder 16. A plurality of photoelectric sorting chambers 11 are arranged in parallel and integrally formed within the sorting machine frame 1.

Next, an automatic control device that increases or decreases the amount of grain flowing out from the supply hopper according to the operating frequency of the sorting operating body will be described.

The operating mechanism of the vibration device 2 constituting the vibration supply device 3 includes an electric circuit 20 of a servo mechanism that converts the rotation direction of a motor 19 for forward/reverse rotation, a control circuit 13 for the sorting actuator 14, and an amplitude control circuit 21. Vibration supply device 3 The resistance value of a variable resistor 22 provided in the electric circuit 20 of the servo mechanism for controlling the amplitude of the vibration device 2 is increased or decreased, and the output signal is communicated to the amplitude adjustment section of the vibration device 2 to change the amplitude. , so as to adjust the amount of grain flowing out from the vibrating feeder 3.

Next, the amplitude control circuit 21 will be explained with reference to FIG.
and connected in series to one input terminal of the setting circuit 27,
A setting device 28 for inputting the resistance value of the reference number of operations is connected to the other terminal on the input side of the setting circuit 27, and the setting circuit 2
One terminal on each input side of comparators 29 and 30 is connected to the output side of 7, and one terminal on each input side of comparators 32 and 33 is connected to a branch circuit 31 on the output side of the integrating circuit 26, respectively. Ground 34 to each input side other terminal of comparator 29, 30
, 34 are connected to each other.

A setter 35 for inputting the resistance value for the upper limit number of operations is connected to the other input terminal of the comparator 32, and a setter 36 for inputting the resistance value for the lower limit number of operations for the input side of the comparator 33, One input terminal of the AND circuit 37 is connected to the output side of the comparator 29, and an inverter 38 is connected to the output side of the comparator 30.
The input side terminals of the AND circuit 39 are connected to each output side of the comparators 32 and 33 via the logic circuit 40, and the input side terminals of the AND circuits 37 and 39 are respectively connected to Relay 4 on the output side of 37 and 39
L42 are respectively connected to the circuit of the motor 19 for forward and reverse rotation, and a red light emitting diode 43 is connected to the output side branch path of the AND circuit 37, and the AND circuit 39
A green light emitting diode 44 is connected to the output side branch path of
Further, each light emitting diode 43 is provided on the display board 45 of the control circuit.
It is intended to be clearly indicated by attaching the ゜44.

Since the above-mentioned configuration is adopted, the sorting capacity (number of operations) of the injection nozzle 9 device of the sorting operation body 14 is determined as follows, and the arbitrary standard number of operations is set to 20, and its resistance value is set in the setting device 28. , the upper limit number of times of operation is set to 35 and the resistance value is set in the setter 35, and the lower limit number of times of operation is set to 10 times and the resistance value is set in the setter 36.

Next, its effect will be explained.

The vibration supply device 3 causes grains containing different colored rice to flow down into the downflow gutter 5 by the vibration action of the vibration device 2, and the downflow grains flow in a predetermined flow trajectory within the photoelectric sorting chamber 11.

In the sorting chamber 11, the light receiving element 8 receives changes in the amount of light of the different-colored grains obtained by irradiating the grains with the light source 10, and transmits the detection signal to the control circuit 13. The injection nozzle 9 of the sorting body 14 operates,
A blast of air is applied at a proper time to separate the different-colored grains from the falling trajectory and sort them out.

In this injection sorting process, when the foreign matter contamination rate of the grain flux flowing on the flow path increases or decreases, the number of operations increases or decreases correspondingly.

The output signal from the control circuit 13 indicating the frequency of this injection sorting is sent to the voltage divider 2 from the branch terminal 24 of the electric circuit shown in FIG.
5 to an integrating circuit 26, the circuit 26 integrates the signal to an average value within a certain period of time, and the output signal is branched and sent to a setting circuit 27 and comparators 32 and 33, respectively. In the setting circuit 27, the signal is corrected by the resistance value of the reference actuation number (20 times) of the setting device 28, and the actuation amplification signal (g) or (c) is generated and transmitted to the comparators 29 and 30, respectively. .

The output signals of the comparators 29 and 30 and the output signals from the comparators 32 and 33 that have passed through the logic circuit 40 are connected to an AND circuit 37.
．． 39 respectively.

The coincidence signal is communicated from each relay 41 or 42 to the servo mechanism to adjust the electric motor 19 by rotating it in forward and reverse directions, and also to increase or decrease the resistance value of the variable resistor 22 of the amplitude adjustment section 18.
Therefore, the amplitude of the vibration device 2 changes and the vibration supply device 3 changes.
The amount of grain flowing out from the tank will be regulated and adjusted to an appropriate level.

When the number of actuations exceeds the upper limit, the electromagnetic on-off valve 23 of the sorting actuator 14 automatically reduces the flow rate of grains to reduce the number of actuations in the standard order, and the red light emitting diode 43 lights up. It is displayed that the amount of grain flowing out from the supply hopper 4 is gradually decreasing, and when the number of operations exceeds the lower limit value, the grain flow rate is increased and the number of injection operations is gradually increased up to the standard number of operations, and a green button is displayed. The light emitting diode 44 lights up to indicate that the amount of grain flowing out of the supply hopper 4 is gradually increasing.

Then, confirm the correct sorting effect from the display state, and if the display state blinks abnormally, change the shape of the downflow gutter to an appropriate shape (V-shape or wavy groove shape),
The inclination angle of the downflow gutter is increased or decreased to adjust it to perform an efficient sorting action.

As described above, according to the outflow grain amount display device of the present invention, it is possible to easily check the state of increase/decrease in grain supply from the vibration supply device in accordance with the standard operation number of the sorting operating body, Depending on the display status, you can check the degree of foreign matter mixed in the raw grain and the condition of spots, or select an appropriate flow gutter shape and set the slope angle of the flow gutter appropriately according to the amount of grain flowing out. It is possible to ensure efficient sorting action.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view of a color sorting machine, FIG. 2 is a side sectional view thereof, and FIG. 3 is a diagram of its amplitude control circuit. 1... Sorter frame, 2... Vibration device, 3
... Vibration supply device, 4 ... Supply hopper, 5 ... Downflow gutter, 6 ... Side part, 7.
... Side part, 8 ... Light receiving element, 9 ...
...Injection nozzle, 10...Light source, 11...
...Photoelectric sorting room, 12...Room frame, 13...
...Control circuit, 14...Selection operating body, 15...
...Unusual particle discharge port, 16... Grain collection cylinder, 1
7... Sorting grain discharge port, 18... Amplitude adjustment section, 19... Electric motor for forward and reverse rotation, 20...
... Electric circuit, 21 ... Amplitude control circuit, 2
2...Variable resistor, 23...Solenoid on-off valve, 24...Branch terminal, 25...Voltage divider, 26...Integrator Circuit, 27... Setting circuit, 28... Setting device, 29... Comparator, 30... Comparator, 31... Branch Circuit, 32... Comparator, 33... Comparator, 34... Earth, 35... Setting device,
36... Setting device, 37... AND circuit, 40... Ethics nectar, 41... Relay, 42... Relay, 43. ...Light emitting diode, 44...Light emitting diode, 45...
...Display board.

Claims (1)

[Claims] 1. The particles mixed with different colors are supplied from the supply hopper to the downflow gutter via a vibration supply device, and the light receiving element detects the change in the amount of light obtained by irradiating the particles flowing on a predetermined trajectory from the flowdown gutter into the photoelectric separation chamber. At the same time, the detected value is communicated to a control circuit, and a sorting actuator is operated according to the detected value to scatter and sort out the particles of different colors, and the number of times the sorting actuator is operated is set in the amplitude control circuit of the vibration supply device. An output signal that increases or decreases with respect to an arbitrary reference number of operations is communicated to an amplitude adjusting section of a vibrating device constituting the vibrating feeding device to increase or decrease the amplitude, thereby increasing or decreasing the amount of grain flowing out from the feeding hopper. In the sorting device according to the present invention, a light emitting diode is provided which receives an output signal that increases or decreases with respect to the reference number of operations and displays a change in the amount of grain flowing out from the supply hopper. Display device.