JP5392538B2 - Grain sorter - Google Patents

Description

The present invention relates to a grain sorter.

Conventionally, a grain sorter and a color sorter are integrally disposed, and after a selection process is performed in advance by a grain sorter in a previous process, colored grains (including damaged grains) are obtained by a color sorter in a subsequent process. Grain sorters that can sort out and remove foreign substances (colored substances) and foreign substances (colored matter), thereby reducing the burden on the color sorter and improving sorting efficiency are well known.

Patent Document 1 discloses a rice hull sorting apparatus having a structure in which a grain size sorting machine and a color sorting machine are arranged side by side in a rice huller to sort the koji brown rice mixed grains into koji and brown rice. As a result, the amount of soot supplied to the color sorter can be greatly reduced, the color sorter can be miniaturized and the production cost can be greatly reduced.

In Patent Document 2, a shape sorter that sorts milled rice into sized and crushed grains, and a color sorter that can sort differently sized grains or crushed grains sorted by this shape sorter, in this order. A rice grain sorting device arranged in the above is disclosed. In this product, the polished rice is sorted into a sized and crushed grain by a shape sorter and then sorted by a color sorter. Colored sized and crushed particles are obtained, and efficient milled rice can be selected.

Patent Document 3 includes a supply hopper, a stone extraction sorter, a rice mill, a broken rice sorter, and a color sorter, and at least the rice mill, the broken rice sorter, and the color sorter are provided in one machine frame. There is disclosed a grain preparation device characterized in that it is integrated by being installed in and out of the machine and covering the machine frame with a removable cover. Since this product does not have a rice huller, wind sorter and particle size sorter already owned by many farmers, the grain preparation device can be downsized and transported easily. Maintenance can be facilitated by making each device freely accessible.

However, in the grain sorter of Patent Documents 1 and 2, it cannot be said that dust such as scum, rice husk, shin, and soot generated in the grain sorter and color sorter is sufficiently discharged and removed. There has been a high risk that fine dust may be mixed into the optical detection unit and control unit of the sorter and lead to failure. In order to solve this, it is conceivable to separately provide a bag filter, a blower, or the like, but it must be formed in a large-scale device.

In addition, the grain preparation apparatus of Patent Document 3 is equipped with a stone sorting machine, a rice milling machine, and a broken rice sorting machine in addition to a color sorting machine, which is an economic burden for farmers who want only a color sorting machine. Is something that grows. In addition, as described above, it is necessary to separately provide a bag filter and a blower to keep the color sorter in a clean state.

Japanese Patent Laid-Open No. 63-23750 JP 63-218288 A JP 2005-334731 A

In view of the above problems, the present invention can greatly reduce the manufacturing cost by reducing the overall configuration even if the grain sorter and the color sorter are integrally provided, and the optical system of the color sorter can be reduced. It is a technical object to provide a grain sorter that has a very low risk of contamination of fine dust in a detection unit or a control unit.

In order to solve the above-mentioned problems, the present invention provides a grain size sorting unit that sorts the supplied grain into sized and crushed grains or sized and immature grains, and the sized grain selected from the grain size sorting unit. And a grain sorting machine that optically sorts and removes defective grains such as colored grains or foreign matter from the grain sorting section, wherein the grain size sorting section includes sized grains and waste grains or sized grains and immature grains. In order to classify the particle size, a screen-type vertical sorting unit with a screen cylinder and a cerealing helix spiral is provided in the casing, while the optical sorting unit is cerealed by the top-feeding type vertical sorting unit. it such a chute-type optical sorting unit for sorting and removal of bad grains optically such as colored grain or foreign materials contained in the granulated by flowing down the particle size sorted sized to tilt downward while the on-feed formula vertical At the upper end of the mold sorting section, a grain selection storage tank that carries the lifted and transported sized particles in a radiant form is attached, and below the grain selection storage tank In order to dispose the chute-type optical sorting section, the chute-type optical sorting section is inclined so that the detection section of the chute-type optical sorting section faces downward in the tilt when viewed from the front, and the chute-type optical sorting section when viewed from the side. The technical means of forming the chute width of the optical sorting portion and the width of the bulging portion on the release side of the grain sorting storage tank to be substantially the same length was taken.

Further, an invention according to claim 2, wherein the feeder and the chute to be grain supply part of the chute type optical sorting unit is partitioned by a partition wall, were sorted and removed in the primary sorting unit and said primary sorting unit colored It is characterized in that it is divided into a secondary sorting section for re-sorting defective grains such as grains or foreign matters.

According to a third aspect of the present invention, in the casing that accommodates the sorting net cylinder and the cerealing helix of the top feed type vertical sorting unit, the grain sorting storage tank and the primary sorting unit of the chute optical sorting unit are provided. A first fine grain cerealing machine that discharges the good grains selected in step 1 to the outside of the machine, and a first defective grain cerealing machine that supplies the secondary selective part with the defective grains selected and removed by the primary selective part, In addition, a second fine grain cerealing machine that returns the good grains selected by the secondary selection unit to the grain selection storage tank is integrally accommodated.

Invention according to claim 4, in the housing bottom of the upper feed formula vertical sorting unit, the dust generated by the upper feed type vertical sorting unit while sucking and removing, by the chute formula optical Gakusen by section A dual-purpose suction exhauster for sucking and removing generated dust is provided.

According to a fifth aspect of the present invention, the suction port of the suction exhaust fan communicates with the dust suction pipe that communicates with the waste particle discharge basket of the upper feed type vertical sorting unit, and the vicinity of the upper end of the chute type optical sorting unit. The dust suction pipe and the dust suction pipe connected to the vicinity of the ejector nozzle of the chute optical sorting section are branched and connected.

According to a sixth aspect of the present invention, a plurality of ventilation holes are formed in the top plate of the waste particle discharge basket of the upper feed type scissor sorting part, a falling plate is obliquely provided below the ventilation hole, and A suction port is formed below the plate and communicates with the dust suction tube.

The invention according to claim 7 is provided with a clogging detection sensor for detecting whether or not crushing particles or immature grains are clogged in the crushing particle discharge tub, based on the detection signal of the clogging detection sensor, In order to stop the suction by the dust suction pipe, a damper that can be opened and closed is provided in the dust suction pipe.

According to the eighth aspect of the present invention, the chute-type optical sorting unit is provided with a receiving plate that receives the grains falling from the feeding valve, an air passage is formed between the receiving plate and the upper end of the chute, and the receiving plate In order to allow air to pass through the ventilation path so as to be perpendicular to the grains falling on the chute from the receiving plate, A secondary air intake hole is formed in the upper side wall, and an air suction port communicating with the dust suction pipe is provided in the side wall facing the secondary air intake hole.

The invention according to claim 9 is characterized in that a good grain storage tank is connected to a first fine grain cerealing machine that discharges the good grains selected by the primary sorting unit of the chute optical sorting unit to the outside. A bagging jar is extended at the lower end of the tank, and a metering shutter is provided at the supply port at the lower end of the bagging jar.

According to the first aspect of the present invention, the grain supplied from the lower part of the casing of the top-feed type scissor-type sorting unit when sorting the grain into sized and crushed grains or sized and immature grains. The particle size is sorted by the sorting screen cylinder while being fed by the cereal helix, and then the sized particle selected by the chute optical sorting section is flowed down the slope to be included in the sized particle or foreign matter. Therefore, it is possible to provide a grain sorter including a large grain sorting unit and an optical sorting unit that have a small installation area and are inexpensive to manufacture. For example, chipped rice, burnt rice, shirata, blue immature rice, and insect-eating colored grains (colored grains with minute black spots damaged by stink bugs) can be selected and removed at a low cost. It has become possible to provide grain sorters that are highly requested by farmers and farming associations.

In addition , a grain selection storage tank for carrying the grain that has been lifted and conveyed in a free-form shape is attached to the upper end portion of the top feed type vertical sorting section, and the chute optical sorting section is provided below the grain selection storage tank. In the front view, the chute is arranged so that the detection unit of the chute optical sorting unit faces downward in the tilt, and in the side view, the chute width of the chute optical sorting unit and the grain sorting storage are arranged. The width of the bulging part on the flaming side of the tank is formed to be substantially the same length, and when the chute-type optical sorting part is disposed below the grain sorting storage tank, the grain sorting and storage is seen in a side view. Manufacturing without making a step between the tank and the chute-type optical sorting unit and reducing the storage space of the chute-type optical sorting unit, making the entire structure of the grain sorter compact and saving space. Drastically reduce costs Door can be.

According to the second aspect of the present invention, the primary sorting unit and the chute-type optical sorting unit capable of re-sorting defective particles such as colored particles or foreign matters sorted and removed by the primary sorting unit are provided. It is possible to sort out and remove defective grains such as colored grains or foreign matters with high precision while being small.

According to the third aspect of the present invention, the first fine grain cerealing machine, the first defective grain cerealing machine, and the second fine grain sprouting machine, which are vertically long objects, are provided in the case of the top feed type vertical sorting unit. Since the cereal machine is accommodated integrally, it is not necessary to arrange a plurality of cerealing machines as described in Patent Document 1 to form a complicated arrangement. The appearance is neatly organized, and the grain sorter of the present invention can be easily installed immediately after the hulling process.

According to the fourth aspect of the present invention, the above transmission type vertical sorting unit dust and the suction-removal occurring in the suction-removal and the one suction exhaust dust generated in the chute formula optical Gakusen by section It can also be used as a wind machine.

According to the fifth aspect of the present invention, the suction port of the suction exhaust fan is connected to the dust suction pipe connected to the waste particle discharge basket of the top feed type vertical sorting unit, and the vicinity of the chute upper end of the chute type optical selection unit. Since the dust suction pipe connected to and the dust suction pipe connected to the vicinity of the ejector nozzle of the chute optical sorting section are branched and connected, there is one location in the top feed type vertical sorting section, the supply side of the chute optical sorting section and the ejector. This is a configuration that removes suspended dust by suction at two locations on the side, and there is less risk (or fear) of suspended dust adhering to the optical detection section and control section of the chute optical sorting section, and malfunctions in the optical detection section and control section It is possible to prevent the occurrence.

According to the sixth aspect of the present invention, dust absorption is performed in the immature grain discharge basket, and the waste particles or immature grains can be discharged while flowing down smoothly without stagnation.

According to the seventh aspect of the present invention, the clogging detection sensor for detecting whether or not the crushing particles or immature grains are clogged is provided in the crushing particle discharge basket, and the suction by the dust suction tube is performed based on the detection signal of the clogging detection sensor. In order to stop, a damper that can be opened and closed is provided in the dust suction pipe, so there is no possibility that waste particles or immature grains staying in the waste dust discharge tub will be discharged outside the machine through the dust suction pipe and the suction exhaust fan. .

According to invention of Claim 8 , the receiving plate which receives the grain which falls from a delivery valve is provided, a ventilation path is formed between this receiving plate and a chute | shoot upper end, and a grain is put on a chute | shoot from the said receiving plate. Since the air is passed through the ventilation path so as to be orthogonal to the grain falling on the chute from the receiving plate, almost all dust mixed in the grain can be sucked and removed. Thus, the possibility of floating dust adhering to the optical detection unit and the control unit of the chute optical sorting unit is extremely reduced.

According to the ninth aspect of the present invention, the good grain storage tank is connected to the first fine grain milling machine that discharges the good grains selected by the primary sorting unit of the chute optical sorting unit to the outside of the machine, A bagging tank is extended at the bottom of the grain tank, and a metering shutter is provided at the supply port at the bottom of the bagging tank. Since it is possible to directly weigh and pack the processed food, it has become possible to provide a grain sorter that is highly requested by large-scale farmers and farming associations.

The best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a schematic internal structure of a grain sorter according to an embodiment of the present invention, FIG. 2 is a perspective view of the appearance of the grain sorter as viewed from the upper right, and FIG. 4 is a right side view, FIG. 5 is a left side view, FIG. 6 is a front view, and FIG. 7 is a schematic view of a chute-type optical sorting unit.

1 to 7, the grain sorter 1 according to the present embodiment has an overall height of a pair of frames 2a and 2b in which frames having a side view of an Arabic numeral and a shape of approximately “2” are arranged opposite to each other. An approximately rectangular parallelepiped-shaped grain size selection unit 3 having a width of 2.0 m and an overall width of about 1.0 m, and an optical selection unit arranged so that the grain flows from the upper part of the grain size selection unit 3 toward the lower left in a front view. 4 are integrally disposed.

The frames 2a and 2b are provided with a predetermined number (two in this embodiment) of casters 2c... So that they can move and can be installed in an appropriate layout.

The grain size sorting unit 3 is provided with a raw material charging hopper 5 on the back surface of the casing 3a. In the casing 3a, a sorting net cylinder 6 for sorting grain sizes of waste rice, immature rice and sized particles is provided. The sorting net cylinder 6 is closed, and the upper surface of the sorting net cylinder 6 is closed. In the sorting net cylinder 6, a soup-type vertical sorting unit is provided in which a whipping roll 7 is erecting. The whipping roll 7 is provided with a spiral mashing helix 8 on its outer periphery, and the mashing roll 7 is rotated by a rotation drive means such as a gear motor (not shown), so that the sorting net is separated from the raw material charging hopper 5. The grain supplied to the lower part in the cylinder 6 rises in the sorting cylinder 6 while receiving a centrifugal force by the rotation of the lifting helix 8.

A large number of sorting holes 9 are formed in the sorting net cylinder 6, and a dust particle chamber 10 is formed between the sorting net cylinder 6 and the housing 3a. Thereby, waste grains (immature grains) are transferred from the grains rising in the sorting net cylinder 6 while receiving the above-described centrifugal force to the waste grain chamber 10 through the many sorting holes 9, thereby Depending on the size, scrap particles are removed from the grain.

The lower part of the waste particle chamber 10 is connected to the outside of the housing 3a via the waste particle discharge rod 11, and the waste rice transferred to the waste particle chamber 10 is discharged out of the housing 3a via the waste particle discharge rod 11. Is done.

A predetermined number of plate-like scraping blades 12 are provided at the upper end of the whipping roll 7, and the upper end of the sorting screen cylinder 6 communicates with the base end of a grain selection storage tank 13 as a primary storage tank. Then, the grains conveyed to the upper end of the sorting net cylinder 6 are carried into the grain selection storage tank 13 in a radiating manner by the centrifugal force generated by the rotation of the scraping blades 12.

At the lower part of the grain selection storage tank 13, an optical sorting unit 4 arranged so that the grain flows toward the lower left on the front side of the grain size sorting machine 3 is provided. The optical sorting unit 4 is a so-called chute-type optical sorting unit, and as shown in FIGS. 1 and 7, a feeder and a chute serving as a grain supply unit are partitioned by a partition wall 4 a to form a primary sorting unit 4 b and a secondary sorting unit. A sorting valve 4 serving as a feeder is provided between the grain selection storage tank 13 and the supply chute 15 so that the grains conveyed to the grain selection storage tank 13 are fed out. It is fed by the rotation of the valve 14 and supplied to the inclined chute 15 that flows downward. Further, in order to dispose the chute optical sorting unit 4 below the grain sorting storage tank 13, in the front view, the chute 15 is disposed so as to be inclined so that the detection unit of the chute optical sorting unit 4 is inclined downward. In view, the chute width W of the chute optical sorting part 4 and the width L of the bulging part 13a on the release side of the grain sorting storage tank 13 are formed to have substantially the same length. And in the up-down direction, the front wall 13b of the grain selection storage tank 13 and the side surface of the chute-type optical sorting unit 4 are arranged flush with each other.

That is, as shown in FIGS. 4, 5, and 7, the width W1 of the chute 15 of the chute-type optical sorting unit 4 on the primary sorting unit 4b side is about 160 mm, and the width W2 on the secondary sorting unit 4c side is about 80 mm. The overall width W of the chute 15 is about 240 mm. On the other hand, the width L of the bulging portion 13 a on the release side of the grain selection storage tank 13 is formed to be substantially the same length as the entire width W of the chute 15. And the chute | shoot type | mold optical selection part 4 is arrange | positioned so that it may follow the front wall 13b of the grain selection storage tank 13 in an up-down direction. 4 and 5, the shoot type optical sorting unit 4 does not cause a step between the grain selection storage tank 13 and the shoot type optical sorting unit 4 and does not cause a dead space. Storage space is ensured, the entire configuration of the grain sorter 1 can be miniaturized to save space, and the manufacturing cost can be greatly reduced. Reference numeral 53 denotes a gear motor for driving the feeding valve 14 intermittently.

As shown in FIGS. 1 and 7, the chute 15 is disposed at a predetermined angle from below the grain selection storage tank 13, and a detection unit 26 is formed at the lower end of the chute 15. The detection unit 26 is provided so as to surround a visible light illuminator 27 that irradiates a target object that passes through the detection unit 26 with a visible light ray and a near-infrared illuminator 28 that irradiates a near infrared ray. A pair of cameras 16a and 16b for optically monitoring both the front and back surfaces of the sorting object in order to detect reflected light or transmitted light from below, and below the pair of cameras 16a and 16b An ejector nozzle 17 is provided as an arranged sorting means.

Below the ejector nozzle 17, good grain discharge rods 18 corresponding to the dropping trajectory of the grains are provided for the primary sorting unit (18a) and the secondary sorting unit (18b), respectively. The fine grains that have not been removed by the ejector nozzle fall on the rod 18 along the locus. On the other hand, defective particle discharge rods 19 for receiving colored particles and foreign substances are provided at positions opposite to the jet direction of the ejector nozzle 17 for the primary sorting unit (19a) and the secondary sorting unit (19b), respectively. Then, the colored particles and foreign matters sorted and removed by the ejector nozzle 17 fall into the defective particle discharge basket 19. As a result, the colored grains and foreign substances are sorted and removed from the good grains.

The optical sorting unit 4 includes a first fine grain cerealing machine 20 that is connected to the good grain discharge basket 18a of the primary sorting unit and discharges the good grains out of the machine, and the defective grain discharge of the primary sorting unit. A first defective grain cerealing machine 21 that is connected to the basket 19a and supplies defective grains to the secondary sorting section, and a second good that returns the good grains sorted by the secondary sorting section to the grain sorting storage tank 13 A grain cerealing machine 22 is erected. The defective grain discharge basket 19b of the secondary sorting unit is connected to the outside of the machine through a pipe (not shown), while from the discharge basket 22a of the second fine grain milling machine 22 through the path 23. Returned to the grain storage tank 13. And these 1st good grain cerealing machine 20, the 1st defective grain cerealing machine 21, and the 2nd fine grain cerealing machine 22 are integrally accommodated in the housing | casing 3a of the said top-feed type vertical sorting machine. It is. Thereby, a plurality of cerealing machines can be arranged separately and can be organized neatly in appearance without making a complicated arrangement configuration. And the grain sorter 1 can be easily installed immediately after the hulling process by the structure of this embodiment.

A good grain storage tank 24 is connected to the discharge basket 20 a of the first good grain cerealing machine 20, and a grain filling tank 25 is extended to the lower end of the good grain storage tank 24. The supply port at the lower end of the bagging throwing bowl 25 is provided with a gate-shaped weighing shutter 29 that can be manually opened in a fan shape in a side view, for example, a large throwing shutter and a small throwing shutter (both shown in FIG. A two-stage shutter (not shown) is pivotally attached. Reference numeral 30 denotes a grip portion fixed to the measuring shutter 29, and the supply port can be manually opened. Reference numeral 31 denotes a supply basket for guiding the grain to a grain bag (not shown).

Below the supply basket 31, there are installed a weighing device 32 and a bag holder 33 that can be placed on the weighing device 32 and can be held with the opening of the grain bag open. The bag holder 33 includes a base 34 placed on the measuring instrument 32, a pair of guide cylinders 35a and 35b erected at a predetermined interval on the upper surface thereof, and lower half portions on the guide cylinders 35a and 35b. Consists of struts 36a and 36b, the sides of which are inserted so as to be movable up and down, and bag clamping means 37a and 37b for sandwiching both edge portions of the opening of the grain bag at the upper end of each of the struts 36a and 36b It is. Reference numeral 38 denotes a bag support member provided on the pair of guide cylinders 35a and 35b and having a substantially U-shaped planar shape.

FIG. 8 is a schematic view showing the dust removing structure of the grain sorter of the present invention. The lower part of the casing 3a of the grain size sorting unit 3 is equipped with a suction exhauster 39, and the suction port 39a of the suction winder 39 is connected to a dust suction pipe that communicates with the waste particle discharge basket 11 of the grain size sorting unit 3. 40, a dust suction pipe 41 connected to the vicinity of the upper end of the chute 15 of the optical sorting section 4, and a dust suction pipe 42 connected to the vicinity of the ejector nozzle 17 of the optical sorting section 4 are branched and connected.

The waste particle discharge rod 11 has a plurality of small ventilation holes 43 formed in the top plate 11 a, and a falling plate 44 is obliquely provided below the ventilation holes 43, and the dust suction pipe 40 is provided below the falling plate 44. A suction port 45 that communicates is provided. The waste particle discharge rod 11 is provided with a clogging detection sensor 51 for detecting whether or not the waste particle discharge rod 11 is clogged, and suction by the dust collection tube 40 is performed by a detection signal of the clogging detection sensor 51. In order to stop, a damper 52 that can be opened and closed is provided in the dust suction tube 40. Further, the detection signal of the clogging detection sensor 51 stops the rotation of the cerealing roll 7, issues a warning to the rice huller which is the previous process, stops the supply of the grain, and indicates an overload. Control to turn on a warning light (for example, Patlite (registered trademark) ) can be performed.

In the vicinity of the upper end of the chute 15 of the optical sorting unit 4, a receiving plate 46 that receives the grains falling from the feeding valve 14 is provided, and there is no ventilation path 47 between the receiving plate 46 and the vicinity of the upper end of the chute 15. The grain is supplied from 46 to the vicinity of the upper end of the chute 15. A secondary air intake hole 48 is formed in the upper side wall of the casing 4 a of the optical sorting unit 4, and the air intake port that communicates with the dust suction pipe 41 on the side wall facing the secondary air intake hole 48. 49 is provided, and air is passed through the ventilation path 46 so as to be perpendicular to the grains falling from the receiving plate 46 to the vicinity of the upper end of the chute 15 so that dust can be absorbed.

On the other hand, the housing 4a in the vicinity of the ejector nozzle 17 of the optical sorting unit 5 is provided with a dust collection net 50 that communicates with the dust suction pipe 42, and sucks scattered floating dust from the grains produced by the jet sorting action of the ejector nozzle 17. This prevents the floating dust from adhering to the optical detection unit and the control unit, and prevents the optical detection unit and the control unit from malfunctioning.

Hereinafter, the operation of the grain sorter 1 having the above configuration will be described. When the grain is supplied from the unloading hopper 5 from the unillustrated hopper 5, the grain is lifted up by the cerealing helix 8 mounted on the cerealing roll 7, and the crushed grains, immature grains, and dust are separated from the sorting net 9. It is discharged into the chamber 10 and sorted. Waste particles and immature particles falling below the waste particle chamber 10 are discharged from an immature particle discharge basket 11 (see FIG. 8) by a scraping blade (not shown). The waste grains and immature grains flow down on the flow-down plate 44 of the immature grain discharge basket 11 and are discharged from the front end of the immature stream discharge basket 11. At this time, since the suction force by the suction exhaust fan 39 is acting, dust is sucked from the suction port 45, and the waste particles or immature particles can be discharged while flowing down smoothly without stagnation.

The sized particles from which the waste grains or immature grains have been removed reach the upper end of the cereal roll 7 and are carried out into the grain selection storage tank 13 by the scraping blades 12 provided at the upper end of the cereal roll. The grain selection storage tank 13 is fed by the rotation of the feeding valve 14 and is supplied to the chute 15 on the primary sorting unit 4b side, and then flows on the chute 15 to reach the detection unit 26. Primary defective grains such as chipped rice, burnt rice, shirata, blue immature rice and worm-eaten colored grains (colored grains with minute sunspots damaged by stink bugs) and primary without coloration Those that are optically monitored for good grains and judged as primary good grains reach the primary good grain discharge trough 18a as they are, and those judged as primary defective grains are ejected from the ejector nozzle 17 disposed below. It is deflected by wind and reaches the primary defective particle discharge rod 19a.

The good grains that have reached the primary good grain discharge basket 18a are cerealed by the first fine grain masher 20 and supplied from the discharge basket 20a to the good grain storage tank 24. From the good grain tank 24, the grain is packed and shipped, for example, in a grain bag (not shown) packed in 30 kg via a grain bagging basket 25 and a weighing shutter 29. On the other hand, defective grains such as colored grains that have reached the primary defective grain discharge basket 19a are supplied to the chute 15 on the secondary sorting 4c side via the first defective grain cerealing machine 21, and are detected by the detection unit 26 as described above. Optically monitored for next defective grains and secondary good grains. What is determined to be secondary good grains reaches the secondary good grain discharge basket 18b as it is, is cerealed by the second fine grain cerealing machine 22 and returned to the grain selection storage tank 13, and from the primary sorting section 4b. It will be sorted again. What is determined as secondary defective particles in the secondary sorting unit 4c is discharged from the defective particle discharge basket 19b to the outside of the machine through a pipe.

As described above, the grain supplied from the lower part of the casing 3a of the top feed type vertical sorting unit is subjected to particle size sorting by the sorting net tube 9 while being fed by the whipping helix 8, and then chute-type optics Since the sized particles selected by the selection unit 4 are flowed downward in the slope to optically select and remove defective particles such as colored particles or foreign matters contained in the sized particles, the grains are once raised. This is a grain sorter that optically sorts and removes the colored grains by sorting down the grain size and letting down the cereals. The installation area is small and compact, and the manufacturing cost is low. It is possible to provide a grain sorting machine including a large grain sorting unit and an optical sorting unit. For example, chipped rice, burnt rice, shirata, blue immature rice, and insect-eating colored grains (colored grains with minute black spots damaged by stink bugs) can be selected and removed at a low cost. It is possible to provide grain sorters that are highly requested by farmers and farming associations.

Moreover, in the housing 3a of the top feed type vertical sorting unit, the first fine grain cerealing machine 20, the first defective grain cerealing machine 21, and the second fine grain cerealing machine 22 which are vertically long products are placed. Since it is housed integrally, it is not necessary to arrange a plurality of cerealing machines apart and to have a complicated arrangement configuration, and it is neatly organized in appearance, this embodiment immediately after the rice hulling process The grain sorter can be installed easily.

Further, the grain sorting machine 1 sucks and removes dust generated in the top feed type scissor sorting unit at the lower part of the casing 3a of the top feed type scissor sorting unit, and the chute optical sorting unit. A suction exhaust fan 39 for sucking / removing dust generated in the exhaust is disposed, and the suction port 39a of the suction exhaust fan 39 communicates with the dust particle discharge basket 11 of the top feed type vertical sorting unit. Branched and connected to a pipe 40, a dust suction pipe 41 that communicates with the vicinity of the upper end of the chute 15 of the chute optical sorting section, and a dust suction pipe 42 that communicates with the vicinity of the ejector nozzle 17 of the chute optical sorting section. When the sorter 1 is in operation, it is configured to remove airborne dust by suction at one place in the top feed type vertical sorter, and at two places on the supply side and eject side of the chute optical sorter. Airborne dust is detected on the detection unit and control unit. Less risk of wear, it is possible to prevent the malfunction occurs in the optical detection unit and the control unit.

The chute-type optical sorting section is provided with a receiving plate 46 that receives the grains falling from the feeding valve 14, and an air passage 47 is formed between the receiving plate 46 and the upper end of the chute 15. It is configured to drop the grain on the top, and air is circulated through the ventilation path 47 so as to be orthogonal to the grain falling on the chute 15 from the receiving plate 46, so almost all dust mixed in the grain is sucked. -It becomes possible to remove, and there is very little possibility of floating dust adhering to the optical detection part, the control part, etc. of the chute optical sorting part.

In addition, the good grain storage tank 24 is connected to the first fine grain cerealing machine 20 that discharges the good grains selected by the primary sorting unit 4b of the chute optical sorting unit to the outside, and a bag is placed at the lower end of the good grain tank 24. Since the filling container 25 is extended and the metering shutter 29 is provided at the supply port at the lower end of the bagging container 25, the particle size is selected and defective particles such as colored particles or foreign matters are optically selected and removed. Can be directly weighed and packaged, which makes it possible to provide a grain sorter that is highly requested by large-scale farmers and farming associations.

It is a figure showing the schematic internal structure of the grain sorter concerning an embodiment of the invention. It is the perspective view which looked at the appearance of the grain sorter concerning an embodiment of the invention from diagonally upper left. It is the perspective view which looked at the appearance of the grain sorter from diagonally right above. It is a right view of a grain sorter. It is a left view of a grain sorter. It is a front view of a grain sorter. It is the schematic of the chute-type optical sorting part of a grain sorter. It is the schematic which shows the dust removal structure of the grain sorter of this invention.

1 Grain sorter 2 Frame 3 Large grain sorter (Upward feed type vertical sorter)
4 Optical sorting unit (shoot type optical sorting unit)
5 raw material charging hopper 6 sorting network barrel 7 AgeKoku roll 8 AgeKoku helical 9 sorting opening 10 debris particle chamber 11 waste particle emission trough 12 scooping blade 13 tablets election storage tank 14 feeding valve 15 feed chute 16 camera 17 ejector nozzle 18 Good grain discharge basket 19 Bad grain discharge basket 20 First good grain masher 21 First defective grain masher 22 Second good grain mashing machine 23 Path 24 Good grain storage tank 25 Packing basket 26 Detection unit 27 Visible Beam illuminator 28 Near-infrared illuminator 29 Measuring shutter 30 Handle portion 31 Feeding rod 32 Measuring instrument 33 Bag holder 34 Base 35 Guide tube 36 Support column 37 Bag holding means 38 Bag support member 39 Suction fan 40 Dust collector 41 Dust collector 42 Dust suction pipe 43 Ventilation hole 44 Flowing plate 45 Suction port 46 Receiving plate 47 Ventilation path 48 Secondary air intake hole 49 Air suction port 50 Dust collection net 51 Clogging detection sensor 52 Damper 53 Gear motor

Claims (9)

Grain size sorting unit that sorts the supplied grain into sized and crushed grains or sized and immature grains, and defective grains such as colored grains or foreign substances from the sized grain selected from the grain size sorting unit A grain sorter equipped with an optical sorting section for optical sorting and removal,
The grain size sorting unit is an upper feed type scissor sorting unit in which a sorting net cylinder and a hulling helix are erected in a housing for sorting the particle size into sized and waste particles or sized and immature particles. The optical sorting section optically removes defective grains such as colored grains or foreign matters contained in the sized grains by flowing down the sized grains that have been grain-sorted while threshing by the top-feed type vertical sorting section. sorting and removal to shoot type optical sorting unit and without the,
At the upper end of the top feed type vertical sorting unit, a grain selection storage tank for carrying the lifted and transported sized particles in a funnel shape is attached, and the chute optical sorting unit is arranged below the grain selection storage tank. In order to provide, in front view, the chute type optical sorting unit is inclined so that the detection unit of the chute type optical sorting unit faces the inclined lower side, and in side view, the chute width of the chute type optical sorting unit and the A grain sorter characterized in that the width of the bulging portion on the release side of the grain sorting storage tank is formed to be substantially the same length . The chute-type optical sorting unit partitions a feeder and a chute serving as a grain supply unit with a partition wall, and recycles defective grains such as colored grains or foreign substances sorted and removed in the primary sorting unit and the primary sorting unit. 2. The grain sorter according to claim 1 , wherein the grain sorter is divided into a secondary sorting section for sorting. In the case that accommodates the sorting net cylinder and the cerealing helix of the top feed type vertical sorting unit, the grains selected by the grain sorting storage tank and the primary sorting unit of the chute optical sorting unit are stored. The first good grain cerealing machine that discharges to the outside, the first defective grain cerealing machine that supplies the secondary grains with the defective grains sorted and removed by the primary sorting section, and the secondary sorting section. The grain sorter according to claim 1 or 2 , comprising a second good grain cerealing machine that integrally returns the produced good grains to the grain selection storage tank. The housing lower portion of the upper feed formula vertical sorting unit, the dust generated by the upper feed type vertical sorting unit while sucking and removing, suctioning and removing dust generated in the chute formula optical Gakusen by section The grain sorter according to any one of claims 1 to 3 , further comprising a dual-purpose suction exhaust fan. A suction port of the suction exhaust fan includes a dust suction tube that communicates with the waste particle discharge basket of the top feed type vertical sorting unit, a dust suction tube that communicates with the vicinity of the upper end of the chute type optical sorting unit, and a chute optical unit. The grain sorter according to claim 4, wherein a dust suction pipe connected to the vicinity of the ejector nozzle of the sorting unit is branched and connected. The waste particle discharging basket of the top feed type vertical sorting unit has a plurality of ventilation holes formed in the top plate, a falling plate is provided obliquely below the ventilation hole, and a suction port is provided below the falling plate. The grain sorter according to claim 5 , wherein the grain sorter is formed and connected to a dust suction pipe. The waste particle discharge basket is provided with a clogging sensor for detecting whether or not waste particles or immature grains are clogged in the waste particle discharge container, and the suction by the dust collection pipe is stopped based on the detection signal of the clogging detection sensor. Therefore, the grain sorter of Claim 5 or 6 which provides the damper which can be opened and closed in this dust suction pipe. The chute-type optical sorting unit is provided with a receiving plate that receives the grains falling from the feeding valve, and an air passage is formed between the receiving plate and the upper end of the chute so that the grains are placed on the chute from the receiving plate. In order to allow air to pass through the ventilation path so as to be orthogonal to the grains falling on the chute from the receiving plate, a secondary air intake is provided on the upper side wall of the casing of the chute optical sorting unit. The grain sorter according to any one of claims 5 to 7 , wherein an inlet hole is provided, and an air suction port communicating with the dust suction pipe is provided on a side wall facing the secondary air intake hole. The first fine grain cerealing machine that discharges the good grains selected by the primary sorting unit of the chute-type optical sorting unit to the outside is connected to a good grain storage tank, and is packed at the lower end of the good grain storage tank. The grain sorter according to any one of claims 3 to 8 , wherein a feeding basket is extended, and a metering shutter is provided at a supply port at a lower end of the bagging charging basket.

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