JPS6321548B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements in grain sorting equipment.

In general, legumes have a near-spherical shape and are unstable when resting on a flat plate and are extremely prone to rolling. However, damaged grains that have been damaged by insects, diseases, fertility failure, and mechanical damage have a different shape or shape than whole grains. They typically have different elasticities.

The present invention is a sorting machine that combines a porous wall sorting plate with a corrugated surface and a blowing effect to efficiently sort grains by utilizing the difference in shape and specific gravity between intact grains and damaged grains.

The present invention will be explained with reference to embodiment figures. In FIG. 2, reference numeral 1 denotes a perforated wall sorting plate formed on a corrugated surface 2. The sorting plate 1 is vibrated forward and backward, and the mixed grains are supplied to the sorting plate 1 through a supply port 3 provided on one side thereof. While separating the grains into the front and back,
The sorted grains are formed so as to flow laterally and to be discharged to a complete grain discharge port 4, a mixed grain discharge port 5, and a damaged grain discharge port 6 provided at the end stroke of the sorting plate 1, respectively.

FIG. 1 shows a grain sorting machine equipped with the above-mentioned porous wall sorting plate, in which a porous wall sorting plate 1 having a supply port 3 on one side is mounted at a gentle slope, and the upper part of the sorting plate 1 is A ventilation chamber 7 is provided in the upper part, and a ventilation chamber 8 is provided in the lower part to form an integral structure. The lower support points 13, 14, 13, 14 are supported by elastic support rods 15, 16, 15, 16, respectively, and the force application point of the machine frame 9 and the crank 1 of the vibration device 17
8 are connected by a rod 19, a blower device 20 is provided at the lower part of the air blowing chamber 8 and communicates with an air supply port 21 provided at the bottom of the chamber 8, and 22 is for frying the raw material into the supply port 3. and a large number of chevron-shaped veins 23... and a large number of row-like long grooves 2 on the porous wall sorting plate 1.
4 are formed on the wavy surface 2, and each of the long grooves 24 is formed to have a groove width B slightly larger than the grain length A of the bean.

With the above-mentioned configuration, the raw material beans are transported to the elevator 22.
When the device is started by putting it into the supply section, it flows down from the supply port 3 onto the porous wall sorting plate 1 at the bottom and is supplied. The corrugated surface 2 of the porous wall sorting plate 1 is vibrated forward and backward by the vibration device 17, and the wind generated by the blower 20 is discharged through the blower chamber 8 on the porous wall surface. Since the air blows toward the wind chamber 7, the beans supplied to the sorting plate 1 are
A flat grain layer is formed while flowing down the sloping wavy surface 2, and incomplete grains (damaged grains, half-split grains) with low specific gravity are removed from the grain layer by the blast action from the porous wall surface. As they float to the upper surface, the whole grains with high specific gravity gather at the bottom of the grain layer, and due to the vibration of the mountain veins, the whole grains at the bottom of the grain bed are pushed forward and upward and laterally. The incomplete grains floating on the upper surface of the grain layer drift laterally while sliding backward and lower on the upper surface of the complete grain layer (see Figure 2). A damaged grain flux R is formed, and a mixed grain flux Q of complete grains and incomplete grains is formed between the above-mentioned fluxes P and R, each of which flows to the final stroke of the sorting plate and is separated and discharged. However, with the conventional porous wall sorting plate in which a large number of mountain-shaped veins are arranged in a serrated cross-section (see Fig. 4), incomplete particles and bulky waste mixed into the beans get stuck in the V-shaped long grooves of the sorting plate.
It is often inserted into the through-hole C of the porous wall surface and fixed in a hook-like manner to make the bottom of the groove shallow, and the sorting plate is mounted in a gently inclined manner, so that the near-spherical shaped bean particles are It has the disadvantage that it rolls from the bottom of the shallow groove over the top of the vein to the lower side of the plate surface, reducing the sorting accuracy. Therefore, in the present invention, a porous wall sorting plate is provided with a large number of chevron-shaped veins and a large number of row-like long grooves to form a wavy surface, and each of the long grooves is formed to have a groove width slightly larger than the grain length of the beans. (Figure 3,
(See Figure 5), each of the grooves is enlarged to a flat shape, and the blowing force from the bottom wall of the groove is increased, so that the above-mentioned trapping phenomenon of incomplete grains, coarse dirt, etc. does not occur at all, and the above-mentioned By increasing the number of oscillators on the sorting plate, it is possible to shake up two sized particles that fit into the groove at once, greatly increasing the sorting efficiency, and also making it possible to sort out different types of particles with slightly different particle shapes. As a result, it is possible to achieve versatility in the sorting work, and it brings about effects such as always being able to reliably and smoothly mass-produce selected beans of high quality.

[Brief explanation of the drawing]

The drawings are illustrations of embodiments of the present invention. Fig. 1 is a side sectional view of the present device, Fig. 2 is a plan view of its porous wall sorting plate, Fig. 3 is a partially enlarged perspective view of the proposed sorting plate, and Fig. 4 is a part of a known sorting plate. FIG. 5 is a partially enlarged sectional view of the sorting plate of the present invention. 1... Porous wall sorting plate, 2... Wavy surface, 3... Supply port,
4... Complete grain outlet, 5... Mixed grain outlet, 6... Damaged grain outlet, 7... Ventilation chamber, 8... Ventilation chamber, 9... Machine frame,
10... Upper fulcrum, 11... Upper fulcrum, 12... Abutment,
13... Lower fulcrum, 14... Lower fulcrum, 15... Elastic support rod, 16... Elastic support rod, 17... Vibration device, 18... Crank, 19... Rod, 20... Air blower, 21...
Air supply port, 22... Elevator, 23... Chevron vein, 24...
Row-like long grooves, A...Grain length, B...Groove width, C...Through hole, P
...complete grain flux, Q...mixed grain flux, R...damaged grain flux.

Claims (1)

[Claims] 1. A porous wall sorting plate mounted in a gently inclined manner is integrally formed with a ventilation chamber provided in the upper part and a ventilation chamber in the lower part, and the said sorting plate is raised forward and vibrated back and forth, and the porous wall is The air is blown upward from the lower surface to sort the mixed grains and discharge them to the final stage. Along with forming
A grain sorting device in which each of the long grooves is formed to have a groove width slightly larger than the grain length of the beans.