JPS5980380A - Detector for cereal grain of oscillating selector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to an improvement in a grain detection device for a swing sorter.

Shaking near the boundary between the grain bundle and the mixed grain bundle on the shaking side of the sorting board or on the opposite side! By vertically mounting the light-transmitting wall surface of the photoelectric detection device in the conveying gutter, the mixing ratio of different types of mixed grains is constantly detected with a highly accurate and stabilized amount of light, and the grain bundle on the shaking side is detected. This was developed in order to precisely regulate the outflow width of the outlet section of the machine, thereby reliably and quickly mass producing high-quality selected grains.

To explain the present invention with reference to the drawings, reference numeral 1 denotes a sorting board with a rough surface forming a frictional resistance that can guide rice grains.
Unusual grains, for example, mixed grains of paddy and brown rice, are supplied on the sorting board 1 that vibrates diagonally up and down in the outflow direction C, which is lateral to the vibration directions A and B. Brown rice grain powder R with a small friction coefficient is placed on one side, and rice grain bundle Q with a large friction coefficient is placed on the other side.
During this time, the three types of grains in the mixed grain bundle P flow in the direction C, and flow down from the separate N1 to the photographing conveyance gutter 3 provided at the base end 2, and reach the board end 2. Each outflow path 6.7 for brown rice, paddy, and mixed grains is created by guide walls 4 and 5 that adjust the movement along the flow path.
8, each of the grain bundles is separately introduced. , and a plurality of light sources 9 made of light emitting diodes are installed in a portion E where the rice powder flows near the plate 2 at the boundary between the brown rice grain powder H on the swinging side H of C1 and the mixed grain bundle 1-). ,
A photoelectric detection device 1 comprising a plurality of light receiving elements 10 for receiving and detecting transmitted light beams emitted from the light source 9.
1 is provided to detect the amount of transmitted or reflected light beam projected onto the outflowing grain bundle, and the photoelectric detection device @1
1 is connected to the guide wall 4 via an arbitrary correction interval W, and the guide wall 4 mounted on the guide track 12 is connected to a motor 14 for forward and reverse rotation by a screw shaft 13, and the motor 14 is a secondary leg device 15 attached to the photoelectric detection device 11;
-C connection via. Detection device 11 at this time
The mounting position is determined based on a slightly mixed rice grain bundle, for example, about 3% or 5% mixed rice grain bundle, rather than the complete brown rice grain powder on the shaking side, and the detection device 11 detects a higher mixing ratio (light intensity). )
When the detection device 11 is in the brown rice grain powder, the screw shaft 13 rotates in the normal direction to move the detection device 11 toward the brown rice inspection bundle R side, and when the detection device 11 moves into the brown rice grain powder, the screw shaft is rotated in the reverse direction. The guide wall 4 is moved toward the mixed grain bundle P, and its movement is automatically adjusted until it settles on the base point, and this operation is repeated to stably determine the position of the guide wall 4. Therefore, the guide wall 4 is provided slightly closer to the end R of brown rice grains than the position of the photoelectric detection @ 11 as the base point, with an arbitrary correction interval W, at the perfect limit point where no paddy is mixed in. In the embodiment diagram, a control device 15 with a built-in detection control circuit is fixed at a position of a correction interval W in a vibrating conveyance gutter 3 with a frame interposed therebetween, and a horizontally elongated A hollow box-shaped grain barrel 17 is suspended, and the light-transmitting wall surface 18 of the photoelectric detection device 11 is provided on the wall surface of the grain barrel 17.
1 is fixed on the outside of the cylinder wall, and both the guide wall 4 and the photoelectric detection device 11 are used for forward and reverse rotation with the light receiving element 10 of the detection device 11! Control till equipment 1' connecting with lI separate 14
The movement is controlled by the detection signal No. 3.

Presumably, the grain detection device of the present invention has d3C on the sorting board.
, The Δ light wall of the photoelectric detection device is mounted vertically in the vibrating conveyance gutter near the boundary between the grain bundle and the mixed grain bundle on the shaking side or the opposite side, and the light is projected onto the grain bundle flowing out. 6) When the amount of light emitted by the light beam is detected, the detection device k
Q) Grain flowing down the transparent wall surface melts (because it is configured to be electrically cleaned), the transparent surface can be cleaned intermittently with a brush like in conventional known equipment, or the transparent surface can be cleaned intermittently with a brush. There is no need to attach any tools, and since the light-transmitting wall recess of the photoelectric detection device is continuously slid and cleaned by the falling grains, the mixing ratio of grains (light) can be measured by the light-receiving element. Accuracy: 1. In addition to stabilizing grains with high precision, the detection signal quickly moves the guide wall to accurately regulate the flow of grain from the discharge port, thereby ensuring that completely selected grains are produced. It is effective for smooth and quick mass production.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view of the sorting board, Fig. 2 is a sectional view of the vibrating gutter, Fig. 3 is an enlarged perspective view of the main part thereof, and Fig. 4M is a grain flow cylinder. FIG. 5 is a sectional view of the grain barrel.

Claims (1)

[Claims] (1) A sorting board with a ffl rough surface that acts as a frictional resistance that can guide rice grains is swung diagonally up and down, and the mixed grains of different color grains supplied to the desired position on the sorting board are flowed. Grain bundles with a small friction coefficient are concentrated on the shaking side, grain bundles with a large friction coefficient are concentrated on the opposite side, and mixed grain bundles of different types are collected between them, and vibrations are installed at the edges of each plate. In a sorting device that is provided with a guide wall that flows down into a conveying gutter and separates and introduces each grain powder into each outflow path in the conveying gutter, the grain bundles on the shaking side or the opposite side and the mixed grain bundles are separated. A photoelectric detection device is installed vertically with its light-transmitting wall facing inside the vibrating conveyance gutter near the boundary, and detects the amount of light transmitted or reflected by the light beam projected on the outflowing grain bundle. JiIS where the falling grains touch and slide on the translucent wall surface to suspend the grain.
Dynamic sorting grain detection device. (2) A grain detection device for an oscillating sorter in which the light-transmitting wall surface of the photoelectric detection device is installed on the cylindrical wall surface of the grain sluice installed in the moving conveyance gutter.