JPS6242676B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the output display signal of a color sorter.

Conventionally known color sorting machines emit light from a light source onto grains and foreign matter mixed in the grains, such as different-colored grains and foreign particles other than grains, detect the amount of light with a light receiving element, and The detection signal is input to the control circuit, and a reference value provided in the control circuit is compared with the detection signal of the light receiving element, and a signal of different color particles other than the reference value is sent to the injection device, and the injection nozzle of the injection device is activated. However, in order to check whether the amount of light emitted from the light source, the color scheme of the background, and the above-mentioned standard values are appropriate for the particles to be sorted, it is necessary to output the detection signal from the light-receiving element. Since the waveforms were inspected using an oscilloscope, the inspection and adjustment of each part could only be handled by those with considerable electrical knowledge.

The present invention has been devised and improved in view of the above-mentioned drawbacks, and a light-receiving element and a plurality of light-emitting diodes of a display board arranged in series are connected linearly to illuminate the particles flowing down. A detection amount display that detects the change in the amount of light obtained by using a light receiving element using a light receiving element, and in response to the detection signal, activates a corresponding number of multiple light emitting diodes in stages to display the detected amount of light received in stages. A plurality of light emitting diodes for displaying a reference value for controlling the operation of the injection device are linearly connected to the adjustment dial, and the light emitting diodes are provided on the display plate to control the light emission of the detected amount display section. An object of the present invention is to provide a display device which is arranged in parallel with a diode to form a reference value display section, and allows anyone to easily check the detection state of a light receiving element and the setting state of a reference value of an injection device. It is something.

To explain the present invention with reference to embodiment figures, in Figs. 1 and 2, reference numeral 1 in the figures is a sorting machine frame, which is installed in a vibrating grain feeder 3 equipped with a vibrating device 2 on the upper part of the machine frame 1. A supply hopper 4 is provided on the supply side, and a falling gutter 5 connected in a dogleg shape is installed and fixed on the discharge side, and a light receiving element 7, 8 and injection device 1
The injection nozzle 9 and the light source 10 of No. 4 are connected to the chamber frame 12 of the photoelectric sorting chamber 11 provided therein, and the light source 10 irradiates the falling trajectory A of the particles mixed with different color particles flowing out from the downflow gutter 5. The light receiving elements 7 and 8 detect the change in the amount of light, and the detection signal is transmitted to the control circuit 13 to operate the injection nozzle 9 of the injection device 14, and the jet action of the nozzle 9 removes the different color particles. The grains are separated and discharged from the different color particle discharge port 15 at the bottom of the chamber frame 12, and the sorted particles are taken out from the machine from the sorted grain discharge port 17 of the grain collection cylinder 16, and are discharged from the sorting machine frame 1. A plurality of the photoelectric sorting chambers 11 are arranged in parallel and integrally formed.

Next, the electric circuit diagram shown in FIG. 3 will be explained.
The input side branch terminals 18 from the light receiving elements 7 and 8 of the control circuit 13 are connected to a rectifier circuit 20 via an input switching circuit 19, and the output side of the circuit 20 is connected to a peak value detection circuit 21 and its signal is A/D converter 23 via a hold circuit 22 that extends
Each comparator 2 whose operating voltage is changed stepwise
4a, 24B, 24c... are connected linearly to the input sides of each comparator 24a, 24b,
Light emitting diodes 25a, 25 are provided on the output side of 24c...
b, 25c... are connected in a straight line to power supply 2.
It is connected to 6.

Figure 4 shows the output display device, photoelectric sorting room 1.
The light-receiving element 7 provided on the front wall of 1 is connected to each light-emitting diode 25 of the detected amount display section 28 on one side, and the light-receiving element 8 provided on the rear wall is connected to each light-emitting diode 25 of the detected amount display section 29 on the other side. The plurality of light emitting diodes 25a, 25b, 25 are connected linearly to each other.
c... are arranged in series to form the detection amount display sections 28 and 29 of the light receiving element, respectively, and the detection amount display sections 28 and 29 are arranged in parallel in the container frame 27 of the chamber housing the control circuit 13. The respective control circuits 13 of the respective photoelectric sorting chambers 11 are connected to the detected amount display section 28, via the channel switching device 30.
29, respectively. Reference numeral 31 denotes a reference value display section for a reference value for controlling the operation of the injection device 14, and in the figure, similarly to the detection amount display section 28, a plurality of light emitting diodes are connected linearly and an adjustment dial 32 is provided. are connected, and the container frame 2
A light emitting diode of a reference value display section 31 is arranged on the seventh surface in parallel with the detected amount display sections 28 and 29.

With the above-mentioned configuration, when the raw material mixed with different color particles is put into the supply hopper 4 and the device is started, the mixed particles with different colors flowing down from the supply hopper 4 to the vibrating grain feeder 3 are transferred to the vibrating grain feeder 3. The particles flow down into the downflow gutter 5 provided at the lower part due to the vibration action of the particles, and the particles sliding in the gutter flow out in the photoelectric separation chamber 11 in a flying manner along a predetermined flow trajectory. And sorting room 1
1, the light-receiving elements 7 and 8 receive the amount of light obtained from the different-color particles, and output the detection signal to the control circuit 13, and the output signal of the circuit 13 causes the jet nozzle 9 to spray air at a timely manner to cause the above-mentioned The different color particles are removed from the falling trajectory and discharged outside the machine from the different color particle outlet 15, and the regular particles are sent to the sorted grain outlet 1 of the grain collecting cylinder 16.
7 and left for the next process.

In this sorting action, the output display device of the present invention communicates the detection signal received by the light receiving element 7 to the input switching circuit 19, selects an arbitrary photoelectric sorting chamber 11 with the channel switching circuit 30, and transmits the signal. The rectifier circuit 20 is connected to a peak value detection circuit 21 and a hold circuit, and the A/D converter 23 converts each peak value of the change in light amount obtained from the flowing particles into a digital signal, and the signal is sent to each comparator 24a. , 24b, 24c..., corresponding to the detection value detected by the light-receiving element 7, the corresponding number of light-emitting diodes 25a, 25b, 25c... of the detection amount display section 28 arranged in series on the container frame 27 is connected. When activated, changes in the detection value of the light receiving element 8 are displayed, and are similarly displayed on the detection amount display section 29 of the light receiving element 8. When checking the detection status of the light-receiving elements 7 and 8 in the other photoelectric sorting chambers 11, the channel switching device 30 can be used to easily switch the channels, and the reference value display section 31 of the reference values installed in parallel. By using the adjustment dial 32, a reference value for controlling the injection device depending on the degree of different color particles can be arbitrarily set, and the reference value is also displayed at all times.

As described above, according to the output display device of the present invention,
A light receiving element detects the change in the amount of light obtained by illuminating the falling particles, and in response to the detected value, a corresponding number of light emitting diodes are activated in stages, and the amount of light detected by the light receiving element is changed. The detected amount display section displays changes in the amount detected by the light-receiving element and the reference value display section, which is arranged in parallel with the detected amount display section, displays a reference value that controls the operation of the injection device depending on the degree of different-color particles. These reference values operate in relation to each other, making it easy to inspect them, and making appropriate adjustments to each part accordingly.

[Brief explanation of the drawing]

The drawings show examples of the present invention, in which Fig. 1 is a front view of the color sorter, Fig. 2 is a side sectional view thereof, Fig. 3 is its electric circuit diagram, and Fig. 4 shows the detected amount display section and reference. FIG. 3 is a front view of the container frame equipped with a value display section. 1... Sorting machine frame, 2... Vibrating device, 3... Vibrating grain feeder, 4... Supply hopper, 5... Downflow gutter, 6
...Side wall portion, 7... Light receiving element, 8... Light receiving element,
9... Injection nozzle, 10... Light source, 11... Photoelectric sorting chamber, 12... Chamber frame, 13... Control circuit, 14
...Injection device, 15...Unusual particle discharge port, 16...
... Grain collection cylinder, 17 ... Grain sorting outlet, 18 ... Input side branch terminal, 19 ... Input switching circuit, 20 ... Rectifier circuit, 21 ... Detection circuit, 22 ... Hold circuit, 23 ... A /D converter, 24a, 24
b, 24c... Comparator, 25a, 25b, 25c
... Light emitting diode, 26 ... Power supply, 27 ... Instrument frame, 28 ... Detection amount display section, 29 ... Detection amount display section, 30 ... Channel switching device, 31 ... Reference value display section, 32 ... ...Adjustment dial, A...Downward trajectory.

Claims (1)

[Claims] 1. A light-receiving element detects a change in the amount of light obtained by projecting light onto particles flowing down a certain trajectory, and communicates the detection signal to a control circuit, and detects a difference outside a reference value set in the control circuit. In a device in which a plurality of photoelectric sorting chambers are arranged in parallel in which an injection device is actuated by a signal and different color particles are separated by the blast, an input side branch terminal from the light receiving element of the control circuit is detected. connected to the input side of an A/D converter via a circuit and a hold circuit, and connected in a straight line to the light emitting diode and to an adjustment dial for setting a reference value of the control circuit for controlling the operation of the injector; A plurality of light emitting diodes are arranged in series on a display board, and a detected amount display section and a reference value display section are arranged so that the detected amount of the light receiving element and the reference value are displayed in relation to each other. An output display device for a color sorting machine, characterized in that: 2. The output display device for a color sorter according to claim 1, wherein the detected amount display section is connected to a circuit of a light receiving element provided in each photoelectric sorting room via a switching device.