JPS595017B2 - De-“pu” sorting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a sorting plate which is formed into a wave-shaped cross section and has numerous air holes in one side of each chevron-shaped convex portion, and is mounted diagonally downward at the upper mouth of the machine casing of a grain sorting machine. A blower equipped with an intermittent air supply device is installed below the sorting plate to intermittently blow out air from the air holes in the sorting plate, and a cover is placed around the machine casing. A scaler is installed at the front of the grain sorting machine, which has a dust collection and ventilation chamber that discharges air at the lower front of the grain sorting machine. The air outlet of the dust collection and ventilation chamber provided in the grain sorting machine is communicated with the air inlet of the grain sorting machine, and the grains sorted in the sorting chamber of the deweighing machine are transferred onto the sorting plate of the grain sorting machine. The slope, the wavy uneven surface, and the airflow intermittently ejected from the air holes of each mountain-shaped convex part are used to classify finished rice, mixed rice, and paddy, and the exhaust air that removes insects during sorting by the grain sorting machine is used. The present invention relates to a dehulling and sorting device in which fine dust is introduced into a sorting chamber by the suction air of a deweighing machine, and grains flowing down from the deweighing chamber are sorted by the exhaust air.

The invention will be explained below with reference to the drawings.

A indicates a grain sorting machine, and 1 is a machine case of the grain sorting machine A. A sorting plate 6 is installed in the upper opening of the machine case.

The sorting plate 6 is made of a rectangular thin metal plate with a corrugated cross section.
Each of the chevron-shaped protrusions has a number of air holes 7 formed on one slope facing in the same direction, and the sorting plate 6 is tilted vertically downward at the upper opening of the machine housing 1. At the same time, it is inclined diagonally downward in the lateral direction as well, and the air holes 7 are installed so as to face the upper side in the lateral direction.

Incidentally, rising walls 2 are provided on the upper edge and both side edges of the sorting plate 6, and the lower end of the sorting plate 6 in the vertical direction extends from the rear wall opening of the machine housing 1.

Reference numeral 8 denotes right triangular shields arranged at the corners of the vertically high and horizontally low points of the sorting plate 6 and fixed to the rising wall 2 on the upper edge of the sorting plate 6 and the rising wall 2 on one side edge. In the closed plate, the outer surface of the oblique side portion is formed into a slope 9 having a receding angle, and the lower end thereof is brought into contact with the surface of the sorting plate 6.

Reference numeral 10 denotes an air conditioning chamber formed in the machine housing 1 below the sorting plate 6, with the upper part open and the bottom plate made horizontal. Board 11
are arranged and fixed at appropriate intervals, and the air conditioning plate 11 in the rear end of the air conditioning chamber 10 is fixed so as to face diagonally forward and upward.

Reference numeral 3 denotes a blower installed in the bottom of the machine casing 1 below the air conditioning chamber 10, and the tip of the air outlet 4 is connected to an opening formed in the front of the bottom plate of the air conditioning chamber 10.
An intermittent air supply device 5 is provided inside.

The intermittent air supply device 5 shown in the drawings consists of a butterfly valve plate.

Reference numeral 12 denotes a sorted grain removal chamber connected to the lower end of the sorting plate 6 in the vertical direction, and a finished rice outlet 13 (!: A mixed rice outlet 14 in which paddy is mixed in the finished rice and a paddy outlet 15 are separated by partition plates 16 and 17.

A is a cover disposed above the machine chassis 1, that is, from above the sorting plate 6, over the front and both outer surfaces of the machine chassis 1, with a gap formed between the machine chassis 1 and the front wall 19 of the cover a and the machine chassis 1. A dust collection and ventilation path is formed in the vertical direction between the front wall of the housing 1 and an air exhaust port 25 is provided at the lower front of the dust collection and ventilation path.

Reference numeral 18 denotes a clay wall of the cover 〇 that forms the upper surface of the cover a, and an opening is provided in the upper plate 18 at a position opposite to the vertically high place and the horizontally high place of the sorting plate 6. Attach the grain feed funnel 22 to the top.

Reference numeral 20 denotes both side plates of the cover a forming both side surfaces of the cover a, the lower ends of which are formed to be inclined downward, the lower ends are bent inward, and the bent ends are brought into close contact with the side walls of the machine casing 1.

A cover 21 is attached to the upper rear end of the cover a to cover the outside protrusion of the sorting plate 6 and the upper part of the sorted grain removal chamber 12, and a mesh opening/closing lid is attached to the upper opening of the cover 21. It is a provision.

B is a scaler installed in front of the grain sorting machine A. At the top of the machine, there is a hulling chamber in which a hulling roll 23 is pivotally supported, and below it, the grains and chaff that fall from the hulling chamber are sorted. A chamber 24 is provided, and a suction chamber 26 is connected to the front part of the sorting chamber 24, which has a windmill 2T supported inside and an exhaust pipe 28 installed outside, so that sorting is performed by suction air. The air inlet on the rear side is communicated with the air outlet 25 of the dust collection and ventilation chamber, and the rice husks and fine dust mixed in the grains flowing from the hulling chamber to the sorting chamber 24 are separated by suction air and removed into the suction chamber 26. The receiving gutter 29 is configured to be discharged from the exhaust pipe 28 and collected with some paddy mixed into a receiving gutter 29 provided at the bottom of the sorting chamber 24.
A screw conveyor 30 is provided in the receiving gutter 29, which extends through both side walls of the machine body.

Numeral 31 is a grain lifting machine installed in front of the protrusion on one side of the receiving trough 29. A packet conveyor 32 is housed in the machine casing, and the outlet of the receiving trough 29 and the entrance of the grain lifting machine 31 are communicated with each other. An outflow gutter 33 provided at the outlet at the upper end of the grain sorting machine A is communicated with a grain supply funnel 22 provided in the grain sorting machine A.

In addition, in the protruding part of the receiving gutter 29 from the other side of the machine, there are receiving tubes 3 and 4 for receiving mixed rice sent from the mixed rice outlet 14 of the grain sorting machine A.
is arranged, and a flip-up grain lifting machine 3 is placed outside the receiving cylinder 34.
5 is installed and the flip-up impeller 36 is connected to the screw conveyor 3.
A receiving tube 37 for receiving paddy sent from the paddy outlet 15 of the grain sorting machine A is connected to the supply port of the grain lifting machine 35, and the opening at the tip of the grain lifting machine is connected to a scale removal machine. It faces the raw paddy supply port 38 of B.

The grain sorting machine A has the above-mentioned mixed rice receiving cylinder 34 and paddy receiving cylinder 37.
On the outer surface of the side wall of the machine casing on the same side as the side where the grain sorting machine A is installed, the mixed rice outlet 14 (!1: Mixed rice flow lower cylinder 39 that connects with the mixed rice receiving cylinder 34 of the deweighing machine B) is installed diagonally. Along with installing
On the outside thereof, a paddy flow lower part 40 that connects the paddy outlet 15 of the grain sorting machine A and the paddy receiving large cylinder 37 of the hulling machine B is arranged in parallel, and these mixed rice flow lower pipe 39 and the paddy flow lower part 40 are connected to each other. A large number of steel wires 41 for sorting small rice are stretched in the vertical direction at the bottom opening, and a small rice receiving trough 42 is provided below the steel wires 41, and a small rice outlet 43 is formed at the lower end thereof.

A guide gutter communicating with the finished rice outlet 13 of the grain sorting machine A is provided below, and the guide gutter is opened in the side wall of the machine case 1, and a grain lifting machine 44 is connected to the opening. The tip end of the grain lifting cylinder is directed toward the rear of the machine casing 1.

Next, its effect will be explained.

When the blower 3 is driven and the intermittent air supply device 5 is operated, an intermittent air flow is sent from the discharge port of the blower 3 to the lower surface of the sorting plate 6 through the air adjustment chamber 10 and is intermittently ejected from the air holes 7 of the sorting plate 6. do.

The sorting plate 6 is formed by forming a rectangular metal plate with a corrugated cross section as described above, and each of its chevron-shaped protrusions has a number of ventilation holes 7 on one side facing in the same direction. 6 to 1
The upper part of the air vent is inclined downward in the vertical direction and downward in the horizontal direction, and the air holes 7 are installed so as to face upward in the horizontal direction.

When raw paddy is supplied to the hopper 38 in the deweighing chamber of the deweighing machine B, it is deweighed by the dehulling roll 23 in the deweighing chamber, and dehulled rice containing unhulled paddy and rice husks is transferred to the sorting chamber 24. falling,
Due to the rotation of the windmill 27 in the suction chamber 26, the exhaust air from the exhaust port 25 of the dust collection and exhaust channel is sucked in, and the air is sorted by the wind, and fine dust such as rice husks is discharged from the air exhaust seat 28 to prevent rice from being mixed in. The scaled rice (this is called mixed rice) falls into the receiving gutter 29, and this mixed rice is sent to the grain lifting machine 31 by the screw conveyor 30 in the receiving gutter 29 and ascends, supplying grain to the grain sorting machine A. Funnel 22
from the lower opening of the cover A through the opening in the earthen wall of the cover A onto the inside of the corner of the vertically high side and the horizontally high side of the sorting plate 6, and from the supply side to the opposite corner. The particles are scattered onto the sorting plate 6, which has a slope diagonally downward.

Since the sorting plate 6 has a corrugated cross section, the mixed rice scattered on the sorting plate 6, which is tilted diagonally downward, is caught in the recesses of the sorting plate 6, as shown in Fig. 15A. It stays.

At the same time, the air that is intermittently supplied from the air outlet 4 of the blower 3 by the intermittent air supply device 5 is blown out from the air holes of the air conditioning plate 11 while being rectified by several air conditioning plates 11 in the air conditioning chamber 10. Then, the air is further ejected diagonally upward through the air holes 7, which are oriented toward the higher side in the horizontal direction of the sorting plate 6.

Then, the mixed rice consisting of the brown rice C shown as white powder on the sorting plate 6 and the unhulled paddy d shown as black grains on the sorting plate 6 is moved to the right side of the diagram as shown in the opening in FIG. The paddy d, which has a lighter specific gravity than the brown rice C, is floated diagonally upward, but at this time, the paddy d, which has a lighter specific gravity than the brown rice C, is floated lower than the brown rice C because it is more buoyant than the brown rice C.

At the next moment, the air supply from the blower 3 is cut off by the intermittent air supply device 5, and the air flow from each air hole 7 stops, as shown in FIG. The mixed rice of paddy d falls in one piece onto the sorting plate 6, but the brown rice C falls on the surface of the grain sorting plate 6, and then the brown rice C falls on the surface of the sorting plate 6.
The paddy d, which had floated upwards, falls to the top of the lower layer made of brown rice C.

At this time, the mixed rice of brown rice C and paddy d in the upper layer moves slightly toward the lower left in the figure under the effect of the slope of the sorting plate 6.

That is, a lot of brown rice C exists in the lower layer on the sorting plate 6, and a lot of rice d floats in the upper layer.

As described above, by continuously repeating the sorting action of floating and falling the grains to be sorted by the intermittent supply of the sorting air flow, the brown rice C is placed on the higher side in the lateral direction of the sorting plate 6. In addition, the paddy moves to the lower areas to gather, and in the middle there is a mixed rice of brown rice C and paddy d, and these layers of brown rice C and paddy d are separated. , the thickness of the mixed rice layer of brown rice C and paddy d is approximately equalized, and the sorting action is almost completed.

(Fig. 15) This separates the rice into three parts: brown rice C, paddy d, and mixed rice of brown rice C and paddy d, which are taken out from finished rice sorting port 13, paddy sorting port 15, and mixed rice sorting port 14. be done.

The sorting plate 6 is made of a rectangular metal plate with a corrugated cross section, each of which has a number of air holes 7 on one side facing in the same direction. The upper opening has a slope diagonally downward so that it slopes downward in the vertical direction and also downward in the horizontal direction, and the air holes 7 are arranged so as to face the upper side in the horizontal direction. When sorting grains are supplied onto the sorting plate 6 from the corner of the vertically high place and the horizontally high place of the sorting plate 6, the vertically high place and the horizontally low place of the sorting plate 6 are The sorting action will not take place near the corners of the grain, and if grains enter this area, unsorted grains will mix with the sorted grains, resulting in poor sorting.

Therefore, a right triangular blocking plate 8 is arranged at the corner between the vertically high point and the horizontally low point of the sorting plate 6 to prevent grains from entering near this corner. The outer surface of the oblique side of the triangular shielding plate 8 is formed into a slope with a receding angle, and the lower end of the slope is placed in contact with the surface of the sorting plate 6, so that the grains flowing on the sorting plate 6 are placed on this slope. Grain can be reliably sorted by allowing only the surface of the sorting plate 6 along which sorting is to be carried out to flow down.

In the present invention, a cover a is arranged around the machine casing 1 of the grain sorting machine with a gap between it and the machine casing, and the gap forms a dust collection and ventilation chamber for discharging air to the front lower part. The airflow ejected from the air holes 7 of the plate 6 is sent toward the exhaust port 25 through the dust collection and exhaust chamber together with fine dust generated during grain sorting.

There, raw paddy is supplied to the supply port 38 of the threshing machine B arranged in parallel with the grain sorting machine A, and the windmill 2 in the Kichi suction chamber 26 operates the threshing machine B.
By the rotation of 7, the exhaust air in the dust collection and ventilation chamber is sucked into the sorting chamber 24 through the exhaust port 25, and is deweighed in the deweighing chamber and sent to the sorting chamber 2.
The grains flowing into the chamber 4 are sorted by suction wind, the mixed rice husks and fine dust are discharged from the exhaust pipe 28 of the suction chamber 26, and the unhusked brown rice with some paddy mixed in is received. The grains are collected in the gutter 29, and the grains are sent to the grain feed funnel 2 of the grain sorting machine A via the grain lifting machine 31 and the outflow gutter 33 by the screw conveyor 30.
2 is fed onto the sorting plate 6, and as described above, the rice is classified into finished rice, mixed rice, and paddy, and each is taken out.

On the other hand, the finished rice is sent from the take-out port 13 through a gutter below it to the flip-up grain raising machine 44 and collected in a container (not shown) installed below the grain-lifting cylinder, and the mixed rice is mixed from the take-out port 14. The rice flows through the lower cylinder 39, passes through the mixed rice receiving cylinder 34, and is transferred to the dehulling machine B.
The grains flow into the receiving trough 29 of the sorting chamber 24, are sent again to the sorting plate 6 of the grain sorting machine A, and are re-sorted.

In addition, the paddy flows from the take-out port 15 through the paddy flow lower part 40 and into the grain lifting machine 35 via the rice receiving cylinder 37, and falls from the grain lifting cylinder into the supply funnel 38 of the threshing machine B, where it is weighed again. Ru.

When the finished rice and paddy flow down through the respective flow tubes 39 and 40, the small rice mixed in with the finished rice and paddy falls from between the steel wires 41 due to the steel wires 41 stretched in the vertical direction and is removed from the respective outlet ports 43. taken out.

In the present invention, a threshing machine and a grain sorting machine are arranged side by side, and the grains that have been dehulled by the scaler and separated from the chaff are transferred to the grain sorting machine for sorting. A sorting plate with ventilation holes is installed diagonally downward, and the wavy uneven surface of the sorting plate, the airflow intermittently ejected from the ventilation holes, and the slope of the sorting plate separate finished rice and mixed rice. Because the rice grains are sorted, there is no need to provide a swinging mechanism compared to the conventional type that swings the sorting plate, so the structure can be simplified and made smaller.

In addition, a dust collection and ventilation chamber is formed around the machine cabinet of the grain sorting machine, and the airflow that is intermittently ejected from the ventilation holes of the sorting plate is passed from the dust collection and ventilation chamber to the sorting chamber using suction air provided in the scaler. Since it is discharged far outside the machine, it is possible to prevent fine dust from scattering around the machine body, and the work of deweighing and sorting can be carried out in a sanitary manner, which has the effect of making it possible to perform the deweighing and sorting very well.

[Brief Description of the Drawings] Fig. 1 is a front view of a weighing and sorting device embodying the present invention;
The figure is a rear view, Fig. 3 is a left side view, Fig. 4 is a right side view, Fig. 5 is a plan view, Fig. 6 is a sectional view of the membrane in Fig. Figure 8 is a cross-sectional view of the mixed rice receiving trough, Figure 8 is a cross-sectional view of the mixed rice flow tube placed on the side of the machine case of the grain sorting machine, Figure 9 is a cross-sectional view along the line shown in Figure 4. A slope view of the sorting plate and the sorting take-out chamber, Figure 11 is an enlarged cross-sectional view with a part of the sorting plate cut away, and Figure 12 is a view from the right side of the sorting plate installed on the top of the machine case of the grain sorting machine. Schematic diagram, Figure 13 is a schematic diagram of the same as seen from the rear, Figure 14 is an explanatory diagram of the classification of finished rice, mixed rice, and paddy on the sorting board, and Figure 15 A20, C, and 2 are from the sorting board of the grain sorting machine. An explanatory diagram of grain sorting action. A...Grain sorting machine, B...Thresholding machine, a...
...Cover, b...Dust collection and ventilation chamber, C...
... Brown rice, d ... Paddy, 1 ... Grain selection machine box, 3 ... Air blower, 4 ... Discharge port,
5... Air intermittent supply device, 6... Sorting plate, 7... Air hole, 8... Closing plate, 1
0... Air adjustment room, 11... Air adjustment plate, 13... Finished rice outlet, 14...
Mixed rice outlet, 15... Paddy outlet, 18...
... Upper plate of the cover, 19... Front plate of the cover, 20... Side plate of the cover, 22...
・Mixed rice supply funnel, 23...Deg roll, 24
... Sorting room, 25 ... Exhaust port, 26.
...Suction chamber, 27...Mixed rice catcher, 30
...screw conveyor, 31 ... grain frying machine, 33 ... mixed rice outflow gutter.

Claims (1)

[Claims] 1. A sorting plate 6 made of a rectangular metal plate with a corrugated cross section, each of which has a number of air holes 7 on one slope facing the same direction, is installed in the grain sorting machine A. The upper opening of the housing 1 is sloped diagonally downward so that it slopes downward in the vertical direction and also downward in the horizontal direction, and the air hole 7 is installed so as to face upward in the horizontal direction toward a higher place. An air conditioning chamber 10 is provided below the sorting plate 6, in which several air conditioning plates 11 with numerous air holes are arranged at appropriate intervals, and below the air conditioning chamber 10, a blower 3 is installed. The air outlet 4 is connected to the opening provided in the front part of the bottom plate of the air adjustment chamber 10, and the air intermittent supply device 5 is installed inside the air outlet 4.
A cover a is provided around the machine chassis 1 with a gap formed between the machine chassis 1 and the front wall of the machine chassis 1.
A dust collection and ventilation passage is formed in the vertical direction between the front wall 19 of the dust collection and ventilation passage, and a ventilation opening 25 is provided at the front lower part of the dust collection and ventilation passage. An opening is provided at a corner of the high place and a horizontal high place, and a grain supply funnel 22 is connected to the opening, and a sorted grain removal chamber 12 is provided at the lower end of the sorting plate 6 in the vertical direction. In addition, a husking machine B is installed in front of the grain sorting machine A, and a sorting chamber 24 using suction air is installed below the husking chamber.
is formed by communicating the waste inlet with the air outlet 25 of the dust collection and air passage, and connects the sorted grain receiving trough 29 provided at the bottom of the sorting chamber 24 and the grain supply funnel 22 of the grain sorting machine A. A de-filling sorting device characterized by being connected by a grain transfer device.