JPS6328673B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in display devices for color sorters.

Conventionally, a color sorter is equipped with a display device such as an oscilloscope that outputs and displays detection signals, and depending on the size of the output waveform, etc., sensitivity adjustment and level adjustment for separating different color particles can be performed, background adjustment, etc. However, in order to set the sorting performance (sorting flow rate and sorting accuracy) to the best condition, a specialized operator with considerable experience and comprehensive knowledge of the equipment is required.
In addition, the device has disadvantages such as an expensive device.

The different color particles of the particles flowing down the falling trajectory of the different colored mixed particles are detected by the light receiving element, and the injection nozzle device operates based on the detected value, and the different colored particles are removed from the falling trajectory. The mixing rate of different color particles mixed into the particles supplied to the machine is not constant, and there is a limit to the operating ability of the injection nozzle device. It goes without saying that it is necessary to appropriately adjust the sensitivity of the light-receiving element that detects different-colored particles, but even if the detection of the light-receiving element operates normally, there is a risk of different-colored particles mixed in with the particles flowing down the flow trajectory. If the mixed amount is greater than the operating capacity limit of the injection nozzle device, different colored particles will remain in the selected particles discharged outside the machine, reducing the sorting accuracy. If the amount of particles mixed in is small and there is room for the operating capacity limit of the injection nozzle device, adjust the amount of particles flowing down the flow trajectory to within the operating capacity limit of the injection nozzle device. Otherwise, there was a problem that the capability of sorting accuracy could not be used effectively.

As a technique for dealing with the above-mentioned problem, for example, the technique disclosed in Japanese Patent Application Laid-Open No. 56-33069 is known, but in this technique, a light receiving element is connected and an injection nozzle device is connected to the output side of the control device. The output side of the control device, which sets the operating reference value of the device, is connected to an electromagnet installed in the vibrating shell gutter. With the above configuration, the output signal of the control device that communicates the abnormal-color particle detection signal of the light receiving element causes injection. Activate the nozzle device to separate the different color particles. At that time, if the detection signal value of the light receiving element increases or decreases with respect to the operating reference value set in the control device, the output signal of the control device is communicated to the electromagnet, the vibration action of the electromagnet is changed, and the vibration To increase/decrease the flow rate of shell particles discharged from a shell gutter, automatically control the injection nozzle device so that it always maintains the operating reference value, maintain optimum sorting accuracy, and ensure the effective maximum sorting capacity. However, with this device, it is not possible to know from the outside what kind of mixing rate the different color mixed particles are supplied, and how it is automatically controlled. The problem was that it caused anxiety among workers who did not have the necessary knowledge.

To solve the above problem, Japanese Patent Application Laid-Open No. 56-48283 has proposed displaying the output waveform of the detection signal of the light-receiving element on a display board using a plurality of light-emitting diodes. Even if it is possible to display the output waveform of the element, it is not possible to detect the number of operations of the injection nozzle device and display the number of operations of the injection nozzle device based on the detection signal, especially for workers without electrical knowledge. This is an unresolved problem in that the color sorting machine cannot be operated with high precision and high efficiency, and there is a need for improvements in simplifying the device and making it easier to operate.

The present invention is intended to improve the above-mentioned problems, and includes connecting one side of a branch section provided on the output side of a control device that outputs to the injection nozzle device based on the detection signal of the light receiving element to the injection nozzle device, With a configuration in which the other side of the branch part is connected via an F/V circuit and an A/D converter to an operation number display panel equipped with an indicator lamp that displays the number of operations of the injection nozzle device, it is possible to prevent particles of different colors from being exposed to the light source. The light-receiving element detects the amount of reflected or transmitted light after illumination and communicates it to the control device.Based on the detection signal, the output signal of the control device operates the injection nozzle device, which sprays out the different colored particles and removes them from the falling trajectory. During the withdrawal action,
By displaying the number of injection operations of the injection nozzle device on an operation frequency display panel, anyone can easily determine the number of operations of the injection nozzle device, and the structure is inexpensive and eliminates the need for an output display device that was previously required. An object of the present invention is to provide a device for displaying the number of times an injection nozzle operates.

To explain the present invention with reference to embodiment diagrams, in FIG. 1, the shell feeding device 1 is connected to the upper end, and
A sorting gutter tube 3 with a photoelectric sorting chamber 2 at its lower end
A control power supply device 5 is provided on the upper part of the pillar 4.
A sorting gutter tube 3 is mounted in a tilted manner to form an integral structure, and a supply hopper 7 is mounted on the upper half of the box frame 6 of the shell feeder 1, and a vibrating tube is installed at the bottom of the supply hopper 7. A vibrating shell trough 9 with a device 8 is installed. In addition, in the photoelectric sorting chamber 2, a light source 11, a light receiving element 1
2. Photoelectric detection device 1 consisting of background 13
4 and an injection nozzle device 15 are arranged in relation to each other, a shell collecting pipe 16 is provided on an extension of the flow trajectory A, and a different color particle discharge port 17 is provided at the lower end of the sorting gutter pipe 3. Also, what is shown in Fig. 2 is the shell feeding device 1.
An operation display panel 20 of the control device 18 is installed on the side wall of the control device 18, and 21 is a power switch, and 22 is a plurality of light emitting diodes 23 that display the number of times the injection nozzle is operated.
An operation count display board equipped with an indicator lamp consisting of...
24 is a scale for the number of operations, 25 is an indicator for the proper number of operations, 26 is a flow rate adjustment dial, 27 is a sensitivity adjustment dial, and 28 is a channel switching dial.

Next, to explain the block diagram of the electric circuit of this device shown in FIG.
5, and the other side of the branch part of the control circuit 19 is an F/V circuit that converts the output frequency of the operating signal into an electrical signal via a channel switching device 30 that can be switched by a channel switching dial 28. 31 (for example, using a photo coupler)
A plurality of light emitting diodes 23 in a line are connected to the A/D converter 32 (LED array).
It is communicated to the indicator lamp consisting of.

Since the configuration is as described above, the power switch 21 is
When turned on, the particles mixed with different colors that flow down from the supply hopper 7 to the vibrating shell gutter 9 due to the vibration action of the vibrating device 8 slide down the flow gutter 10 and flow out inside the photoelectric separation chamber 2 along the flow trajectory A. . In the sorting chamber 2, the light source 11 illuminates the different color mixed particles with reflected or transmitted light, the light receiving element 12 receives the light and communicates the detection signal to the control device 18, and the control device 18 outputs the detection signal based on the detection signal. The jet nozzle device 15 is operated, and the jet action causes the different colored particles to be separated from the different colored mixed particles flowing down the flowing trajectory A, and the separated particles are transferred to the different colored particles discharge port 17.
Fine particles that flow down from the shell and are not subjected to the blowing action of the injection nozzle device 15 are taken out of the machine via the shell collecting cylinder 16 and left for the next process.

During the above-mentioned sorting operation, an output signal transmitted to the injection nozzle device 15 via the control circuit 19 of the control device 18 operates the electromagnetic on-off valve, and the control circuit 19 The output side of the actuation signal is branched from the injection nozzle device 15,
F/V circuit 3 via channel switching device 30
1. The output signal is transmitted to the A/D converter 32, and the output signal is displayed on the operation number display panel 22 of the injection nozzle device 15.
A plurality of light emitting diodes 23 in a row forming a
Lights up the indicator lamp according to the number of operations to display the number of operations. When multiple rows of downflow troughs are arranged in parallel, each channel can be displayed using the channel switching dial 28.

One of the major factors that controls the sorting performance of the color sorter is the number of operations of the injection valve provided in the injection nozzle device 15, which normally operates about 300 times/sec. The appropriate number of operations during normal use is 50 to 30 times/sec.

The present invention can maintain highly accurate sorting performance by adjusting the number of operations of the injection nozzle device 15 to the appropriate number of operations, and since the appropriate number of operation times indicator 25 is also displayed, it is possible to The number of operations display 2 is adjusted so that the number of operations of the injection nozzle device 15 displayed on the number scale 24 is the appropriate number of operations.
5 as a guideline, adjust the flow rate by adjusting the flow rate adjustment dial 26, and set the injection nozzle device to the optimum flow rate within the limit range according to the mixing rate of different color particles, thereby achieving the best sorting performance. can be easily obtained.

In addition, consider the degree of sorting of fine grains discharged from the shell collecting pipe 16 and different colored grains discharged from the foreign grain discharge port 17, and if more accurate sorting is required, adjust the sensitivity using the sensitivity adjustment dial. Can be adjusted and corrected. When the sensitivity is increased, the number of operations increases, but it is also easy to reduce the flow rate to the appropriate number of operations using the operation number indicator 25 as a guide.

In short, the present invention provides an operation number display panel that displays the number of operations of the injection nozzle device, and based on the number of operation times of the injection nozzle device displayed on the operation number display panel, the injection is performed according to the mixed rate of different color particles. The number of operations of the nozzle device, the flow rate, and the sensitivity can be easily adjusted, the best sorting performance can be obtained, and the output display device such as an oscilloscope, which was previously thought to be essential, is no longer required, and the structure is simplified to reduce manufacturing costs. In addition to being inexpensive, the color sorter can be operated easily by anyone without the need for experience, even those without general electrical knowledge, promoting work efficiency and always achieving high accuracy. This has the effect of maintaining the same sorting performance.

[Brief explanation of the drawing]

The drawings are illustrations of embodiments of the present invention. FIG. 1 is a partially cutaway side view of the present color sorting machine, FIG. 2 shows its operation display panel, and FIG. 3 is a block diagram of the electric circuit. DESCRIPTION OF SYMBOLS 1... Shell feeding device, 2... Photoelectric sorting room, 3... Sorting gutter tube, 4... Support column, 5... Control power supply device, 6... Box frame, 7
... Supply hopper, 8... Vibration device, 9... Vibrating shell gutter, 10... Downflow gutter, 11... Light source, 12... Light receiving element, 13... Background, 14... Photoelectric detection device, 15... Injection nozzle device, 16... Collection shell tube, 17
...Unusual grain discharge port, 18...Control device, 19...Control circuit, 20...Operation display panel, 21...Power switch, 2
2...Operation frequency display board, 23...Light emitting diode, 2
4...Operation number scale, 25...Appropriate number of times indicator, 26
...Flow rate adjustment dial, 27...Sensitivity adjustment dial, 28...Channel switching dial, 29...Drive circuit, 30...Channel switching device, 31...
F/V circuit, 32...A/D converter.

Claims (1)

[Claims] 1. A light source, a background, a light-receiving element, and an injection nozzle device are arranged in relation to each other around the falling locus of particles mixed with a different color, and based on the detection signal of the light-receiving element, an output signal of a control device is used to detect the In a color sorter that operates an injection nozzle device to sort out particles of different colors, one side of a branch section provided on the output side of the control device is connected to the injection nozzle device, and the other side of the branch section is connected to an F/V. A display device for an injection nozzle device of a color sorter, characterized in that the display device is connected to an operation number display panel having a display lamp for displaying the number of operations of the injection nozzle device via a circuit and an A/D converter. 2. The injection nozzle operation number display device for a color sorter according to claim 1, wherein the operation number display board is provided with a proper operation number display for displaying the number of operation times of the injection nozzle device. 3. Color selection according to claim 1 or 2, wherein the photoelectric detection device is formed into a plurality of channels, and a channel switching dial connected to the plurality of injection nozzle devices is connected to the operation number display board. A device that displays the number of times the machine's injection nozzle operates.