JPS59155729A - Different color particle discharging apparatus of color sortor - Google Patents

Abstract

PURPOSE:To make it possible to simplify the structure of a light receiving apparatus part by preventing no-response of a solenoid valve even when a plurality of different color particles pass on one line within a short time in spite of one light receiving apparatus, by providing a plurality of solenoid valves to one light receiving apparatus while connecting the light receiving apparatus to said solenoid valves through a signal distributing apparatus for successively transmitting the successive operation of the light receiving apparatus to a separate solenoid valve. CONSTITUTION:An object to be sorted such as polished rice is supplied from a hopper. When a different color particle other than the polished rice is mixed in a downwardly flowed object, the reflectivity or wavelength distribution thereof is different from that of the polished rice and, therefore, the signal of a light receiving element 5 generates a signal, for example, 1 different from the signal in the polished rice, for example, zero to operate a recirculation counter 21. Therefore, reflected light is condensed by a lens 6 so as to increase light receiving sensitivity by using a filter in selecting said reflected light. Because the recirculation counter s connected to a solenoid valves 12, if the output signal of the recirculation counter 21, for example, the signal of 1 is sent to either one of the solenoid valves 12, the solenoid valve 12 is opened to inject air from an air nozzle 11 and the different color particle is discharged to be sent to a discharge trough 18.

Description

[Detailed description of the invention]

-1- this invention

[, 1. For example, paddy mixed in polished rice, contaminated rice,
We select and remove abnormal powders such as spoiled rice and pebbles, and ship homogeneous white rice as a product! This invention relates to an improvement of a Tatsumi powder discharge device for a color sorting machine. The different color powder discharge device of the conventional color sorter makes the reflected light of white rice flowing from the supply gutter enter the light receiving device, and the detected signal g converted there is taken into the air nozzle and sent to the air nozzle. ￥
3 When the colored powder passes through the solenoid valve, the detection signal changes, the solenoid valve operates, and the compressed air is released from the air nozzle.
The light powder is released and flows down the discharge gutter.1! They used the method of Also, another 1/! With color sorting machine and lno, JP-A-1989-13
It has a drum equipped with multiple nozzles as in No. 064,
1Irr The raw material sucked into the nozzle is irradiated with light and the quality of the raw material is determined while the drum is rotated. 6. A rotary encoder that rotates in synchronization with the drum and outputs a pulse signal, and a color or shape of the raw material. a detection head that outputs a pulse signal in response to a shift 1-register;
Control the shift registers 1 to 2 in the previous section by each pulse signal of the rotary register and the detection device. and (
Furthermore, there is known a method in which defective raw materials are removed in response to the outputs of the shift registers. However, the above-mentioned device is one in which one solenoid valve or defective raw material removal device is provided for one light receiving element or a plurality of detection devices, and the solenoid valve (i) The operation is mechanical, the time required for the operation is long, and the delay time of the operation is ignored.
If a large number of different colored grains pass through in a short period of time,
There was a drawback that the r1 solenoid valve or the original size removal device could not respond to all input signals. In order to cope with this, a device was developed in which a plurality of photoelectric elements were provided, each corresponding to a plurality of solenoid valves.
This device is suppressed as No. 169, but this device has a plurality of photoelectric elements arranged perpendicularly to the direction of movement of rice grains, and each photoelectric element has a pair of 1. This method requires a plurality of electromagnetic valves perpendicular to the direction of movement of the rice grains, and requires a plurality of photoelectric elements. 3- When abnormally colored grains pass CJ, the solenoid valve that performs mechanical operation cannot respond to all human input signals.The present invention was made to solve the above-mentioned drawbacks. A light receiving device and an air nozzle are installed between the supply gutter and the receiving gutter.
Did you notice the air nozzle? t2 In the detection signal of different color particles of the color sorter which connects the magnetic valve to the light receiving device "1", a plurality of solenoid valves are connected to one light receiving device (-
(9) The present invention is characterized in that the Orj light receiving device is connected to the electromagnetic valve via a signal distribution device that sequentially transmits the sequential operation of the front light receiving device to other electromagnetic valves. Next, an embodiment of the hexagonal jig discharging device for a color sorter according to the present invention will be explained with reference to the drawing 31.As shown in FIG. It is swung by the action and prevents the 8 tl of falling material.Feeter 2 passes through the supply (;■3 is contacted, the lower end of the supply fil!i 3 is passed through the receiver 1; dirt 15). As shown in Figure 2, a front tube 8 and an air nozzle 11 are installed between the lower end of the supply gutter 3 and the receiving gutter 15, and a filter 7, a lens 6-4, and a light receiving element are installed at the right end of the front tube 8. 5 are arranged so that they each have the same optical axis, forming the main part of the light receiving device ().In addition, three air nozzles 11 are installed in parallel, and each air nozzle 11 is connected to three electromagnetic valves. 12 to pressure pipes 19, and each pressure pipe 19 communicates with a pressure source 20.
l, one stage (pulled), consisting of a circulation counter 21 that sequentially transmits the sequential operation of the light receiving device to another electromagnetic valve (jr 7" electrically coupled to the light receiving element 5 via the H distribution device. In addition, the key board 4 is installed so as to face the left end of the front tube 8.]
G↑I regeneration of the light receiving element 5 is performed. Next, to explain the present invention in detail, the material to be sorted, for example, polished rice, is supplied from the hopper 17, and is vibrated by the action of the electromagnet 1 in the feeder 2.
3 flows down. The lower end of the supply gutter 3 is a narrow path, and the falling material is received in a single row! 115, but if there are particles of a different color other than polished rice in the falling material, their reflectance or wavelength (1) will be different from that of polished rice, so the signal from the light receiving element 5 will be -5- compared to that of polished rice. For example, the signal is ¥1. For example, 1 is generated, and 11
Activate rl ring h1 number counter 21! Ru. Therefore, a filter 7 is used to select one beam of light, and the lens 6 focuses the light so as to increase the light receiving sensitivity. Since the circulation counter 21 is connected to the solenoid valve 12, if the output signal of the circulation R1 counter 21, for example the signal 1 mentioned above, is sent to any of the solenoid valves 12, the solenoid valve 12 will listen and the air will flow from the air nozzle 11. I
! Fi! The cheap ones that are ejected and ejected with different colored grains are sent to Jll'tHUm 18. Naturally, when the #I multiplication signal is 0, the solenoid valve 12 is closed. In this case, when different colored particles come down in succession within a short period of time, the detection signal of the different colored particles from the light receiving element 5 is
Since it is sequentially sent to each solenoid valve 12 by ? One of the lli magnetic valves 12 is always in a state where it can respond to a different color particle detection signal. When discharging different colored grains using the air nozzle 11, white rice may be discharged at the same time by mistake, but in such a case, a grain frying machine (not shown) or the like is installed at the bottom of the discharge gutter. One step is to add white rice back to the rice. In this embodiment, three air nozzles 11 are installed in parallel, but only one air nozzle 11 is installed.
There is no problem with the use of wood, and in the case of one solenoid valve (12), there is a mounting arrangement in which the solenoid valve 12 is arranged in parallel to the air nozzle. Install the air nozzle and G'j, njl to the air distribution nozzle.
: In the color sorter's Tatsumi powder emitting device, a plurality of solenoid valves are provided for one light receiving device, and the sequential operation of the light receiving device is sequentially transmitted to other solenoid valves. Since the light receiving device is connected to the electromagnetic valve 1a through the distribution device, it is possible to sequentially operate multiple electromagnetic valves even though it is a single light receiving device. If multiple different colored powders pass between C't)
It is possible to prevent non-response of the solenoid valve, it is possible to easily change the structure of the light receiving device part, and for example, it is possible to almost completely remove dark brown powder mixed in falling objects such as polished rice. It has a remarkable effect of being useful for quality control.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of an embodiment of the W color powder discharging device of the color sorting machine of the present invention, and FIG. 2 is an enlarged vertical cross-sectional view of the main parts thereof. 1...? F2 magnet, 2... Feeder, 3... Supply gutter, 1... Reference plate, 5... Light receiving element, 6... Lens, 7... Filter, 8... Front cylinder, 11 ...
Air nozzle, 12... Solenoid valve, 1/l... Pressure pipe,
15...Gutter, 17...Hopper, 18...υ1
Outlet, 20...pressure source, 21...circulation 51 units. Patent applicant Co., Ltd. 1 Satake Seisakusho-8-

Claims (3)

[Claims] (1) A six-color powder discharging device h of a color sorter, in which a light receiving station and an air nozzle are provided between the supply gutter and the receiving gutter, and an electric 1st canyon valve attached to the air nozzle is connected to the light receiving device. 'In AI, multiple solenoid valves are connected to one light receiving device.
5+4 of a color sorter, characterized in that the light receiving device is connected to the electromagnetic valve through a signal distribution device that sequentially transmits the sequential operation of the light receiving device to another electromagnetic valve;
Colored grains 1 (dispensing device) (2) The device for extracting different color grains of the color sorting machine according to claim 1, wherein the pre-distribution ¥5 distribution device is a circulating numeral. (3) The color powder discharging device for a color sorter according to item 1 or 2, wherein the air nozzles are plural.