JP2017144381A - Grain selecting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To satisfy such desires as can perform a selecting treatment satisfactorily and improve a selecting performance.SOLUTION: A grain selecting apparatus comprises: a drive wheel body 25 for rotating on a first horizontal axis X1; a driven follower wheel body 26 for rotating on a second horizontal axis X2 parallel to the first axis X1; an endless rotary band 27 wound over the drive wheel body 25 and the driven follower wheel body 26 and having a plurality of passing holes 27a for dropping grains selectively; and a stationary guide 33 for sliding and guiding the upper rotational face 27A of the endless rotary band 27 from the lower side.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a granule sorting apparatus for removing foreign matters such as straw scraps contained in grains such as rice bran and brown rice.

  Conventionally, an endless rotation band made of a mesh body having a mesh size through which brown rice can pass is wound around a drive pulley and a driven pulley, and the drive pulley is rotated by a motor, whereby the endless rotation band is formed. Some were configured to rotate. Of the grains to be processed that are introduced from above, brown rice leaks from the mesh of the endless rotation zone and is supplied to the brown rice receiving port. Long foreign matters such as straw scraps are introduced from the conveyance end of the endless rotation zone. It was comprised so that it might collect | recover in a collection container (for example, refer to patent documents 1).

JP-A-6-29685

  In the above-described conventional configuration, the processing target grains put on the transport surface on the upper side of the endless rotation zone are transferred only by the endless rotation zone. Since the endless rotation belt is only wound around the drive pulley and the driven pulley, it is in a free state in which it can move in the vertical direction during the conveyance. There is no problem when the tension is properly set, but if the tension is loosened with use, the transport state of the endless rotation band may become unstable, and the sorting process cannot be performed properly. There was a fear.

  Further, in the above-described conventional configuration, the processing target grains are transported only by the endless rotation belt. For example, the processing target grains are supplied in a large amount at a time and transported in a multilayered state on the endless rotation belt. In such a case, the grains to be processed are transported in an accumulated state by the endless rotation belt, and there is a possibility that the ratio of the brown rice collected in the foreign material collection container may increase, so there is room for improvement. there were.

  Therefore, it has been desired to improve the sorting performance while performing the sorting process satisfactorily.

  A characteristic configuration of the granular material sorting apparatus according to the present invention includes a driving wheel rotating around a first horizontal axis, a driven wheel rotating around a second horizontal axis parallel to the first horizontal axis, An endless rotation band having a plurality of passage holes that are wound around the driving wheel body and the driven wheel body and selectively leak the particles, and an upper rotation surface of the endless rotation band from the lower side. A fixed guide for sliding guide is provided.

  According to the present invention, when a processing target particle including a granular material is placed above the endless rotating band and conveyed by the endless rotating band, the granular material leaks downward through the passage hole in the endless rotating band. To do. On the other hand, the foreign matter contained in the granule is transported to the transport end portion of the endless rotation zone and collected without passing through the passage hole. This makes it possible to remove foreign substances contained in the granules.

  Then, the upper rotation surface of the endless rotation band on which the processing target particles are placed and conveyed is slidably guided from below by a fixed guide. As a result, even when the tension state of the endless rotation band becomes loose, the upper rotation surface of the endless rotation band is slid and guided by the fixed guide, so that it is transported in a stable state and is well sorted. Processing can be performed.

  Since the upper rotation surface of the endless rotation band moves, the fixed guide is in a fixed position, so that, for example, the processing target grains are conveyed in a stacked state on the endless rotation band. Even in such a case, the fixed guide in the fixed state is in sliding contact with the particles to be processed, and the stacked state can be broken and the leveling action can be exerted. The performance can be improved.

In the present invention,
The endless rotation band is constituted by a net-like body,
In the lateral width direction of the endless rotation band, the width of the passage hole is formed to be wide enough to allow passage of foreign substances contained in granules,
It is preferable that the fixed guide includes a plurality of guide portions extending along the rotation direction with an interval smaller than a lateral width of the passage hole.

  According to this configuration, the endless rotation band made of a mesh-like body can be created at a low cost while being easy to allow the granules to leak and freely deformable and easy to create as an endless rotation band. Is possible. Such an endless rotation band is formed in a net shape by intertwining a plurality of rods. However, in this configuration, for example, foreign matter such as straw scraps may be caught and retained in the intertwined portions of the rods. There is. However, according to this configuration, since the width of the passage hole is formed to be wide enough to allow the passage of foreign matter, there is little risk that the foreign matter will be caught in the intertwined portion of the bar material and hinder the sorting process.

  Since the width of the passage hole is wide enough to allow foreign matter to pass through, if it is transported only by the endless rotation belt, the foreign matter will leak in the same way as the granular material, and foreign matter will be mixed into the granular material. Since the guide portion is provided in a state extending along the rotation direction with an interval smaller than the lateral width of the passage hole, the guide portion can receive the foreign matter and transfer it to the conveyance end portion.

  Accordingly, the foreign matter can be transferred to the conveyance end portion while preventing the foreign matter from being caught in the endless rotation band, and the sorting performance can be improved.

  In the present invention, it is preferable that a lower side of the endless rotation belt is provided with a granular body recovery unit that recovers the granular body and a foreign body recovery unit that recovers foreign matter contained in the granular body. .

  According to this configuration, the particles of the processing target particles leak through the passage hole of the endless rotation zone and are collected by the particle collection unit provided below the endless rotation zone. The foreign matter contained in the processing target grain is transferred to the end portion of the endless rotation zone and collected by a foreign matter collection unit provided below the endless rotation zone. In this way, the particles and foreign substances are collected by different collecting units, so that the foreign substances contained in the particles can be reliably removed.

In the present invention,
A partition member is provided between the upper rotation surface and the lower rotation surface of the endless rotation band to partition the granular material recovery unit and the foreign material recovery unit,
It is preferable that a gap filling member configured by an elastic body to fill a gap between the lower end portion of the partition member and the lower rotation surface of the endless rotation band is provided.

  According to this configuration, by providing the partition member, the particles that have leaked from the upper rotation surface of the endless rotation band are mixed into the foreign material recovery unit, and the foreign material that has fallen from the terminal end of the endless rotation band Can be prevented from being mixed into the granular material collection unit.

  Since the gap between the lower end portion of the partition member and the lower rotation surface of the endless rotation band is filled with the gap filling member made of an elastic body, the above-described mixing can be reliably prevented and the endless rotation can be prevented. Even if the moving belt comes into contact with the gap filling member, it is elastically deformed and retracts, so that it is not damaged and can be prevented from being mixed for a long time.

In the present invention,
A support frame for supporting the driving wheel and the driven wheel,
It is preferable that a position adjustment mechanism capable of changing a vertical position of the fixed guide with respect to the support frame is provided.

  According to this configuration, since the support frame supports the driving wheel and the driven wheel, the endless rotation band is also supported. The relative vertical position between the fixed guide and the endless rotation band can be changed by changing the vertical position of the fixed guide with respect to the support frame by the position adjusting mechanism. By adjusting the vertical position of the fixed guide to an appropriate position, the endless rotation band can be guided in a stable state, and the sorting process can be performed satisfactorily.

It is a front view of a rice mill processing equipment. It is a cross-sectional top view of a rice mill processing equipment. It is a vertical rear view of the rice milling equipment. It is a vertical side view of a rice mill processing equipment. It is a rear view of the arrangement | positioning part of a hulling part and a wind selection part. It is a vertical back view of a foreign material removal apparatus. It is a top view of a foreign material removal apparatus. It is a vertical side view of a hulling part. It is a vertical side view of a hulling processing part. It is a vertical rear view of a hulling processing part. It is a vertical cross-sectional rear view of a heel guide body arrangement | positioning part. It is a vertical rear view of a granular material guide part and a wind selection part.

  Hereinafter, the case where the granule sorting apparatus according to the embodiment of the present invention is applied to a rice milling equipment with a coin-type grinder will be described with reference to the drawings.

〔overall structure〕
1 to 4 show the rice milling equipment. In this facility, a partition wall 4 partitions a guest room 2 in which a user can freely go and a machine room 3 in which only a limited person such as an administrator or a maintenance inspector can enter. It is provided in a state.

  The guest room 2 is provided with a hopper 5 for charging for a user to input grains to be treated such as rice bran or brown rice, a white rice hopper 6 for discharging and storing brown rice that has been crushed or polished. Yes. The charging hopper 5 is located on the right side of the cabin 2. The white rice hopper 6 is located on the left side of the cabin 2. Between the charging hopper 5 and the white rice hopper 6, the operation control panel 7 is disposed so that the front surface of the operation control panel 7 faces the interior of the cabin 2. On the front surface of the operation control panel 7, in addition to the coin insertion unit 8, a changeover switch 9 for specifying whether the grain to be processed is brown rice or rice bran, and a plurality of (for example, four) whitenings for selecting the degree of whitening. A degree selection switch 10 and the like are provided. Although not shown, the operation control panel 7 is provided with a control device for controlling the operation state of each part based on the command of each switch.

  In the machine room 3, the foreign matter removing device 11 as a granular material sorting device according to the present invention for removing foreign waste other than the granular material contained in the processing target particles and other foreign matters, and the soot that is the processing target particle The rice hull portion 12 for performing the defatting process for removing rice husks (rice husk processing) from the rice, acts on the processed product after the defatting treatment in which brown rice and rice husks are mixed, and sorted into brown rice and rice husks Wind separation unit 13 to be separated, stone remover 14 that removes foreign substances such as stones contained in the brown rice separated by the wind selection unit 13, rice milling processing to remove rice cake from brown rice after finishing rice bran processing or fed brown rice The foreign substance such as stones is removed by the rice milling unit 15 for executing the processing, the first transporting conveyor 16 for sending the processing target grains put into the feeding hopper 5 to the hulling unit 12 through the foreign matter removing device 11, and the stone removing machine 14. There is a second lifting conveyor 18 that sends the brown rice to the milled rice 15 It has been.

  The first transporting conveyor 16 is provided in a state located on the left side of the charging hopper 5. Although the detailed configuration will not be described, as shown in FIG. 4, the first transporting conveyor 16 is a bucket conveyor in which a plurality of buckets 16 b are provided on an endless rotating belt 16 a stretched along the vertical direction. The processing target grains put into the feeding hopper 5 are lifted and conveyed by the bucket 16b, and discharged from the upper end portion through the shooter 19 toward the foreign matter removing apparatus 11 as an example of the grain sorting apparatus. To do.

  As shown in FIGS. 2 and 3, the foreign matter removing device 11 is located behind the first transporting conveyor 16 and above the hulling portion 12. This foreign matter removing device 11 is used to screen the processing target grains (wrinkles) put into the feeding hopper 5 so as to remove straw scraps and other foreign matters from the processing target grains before being put into the hulling portion 12. It is structured in an equation.

  As shown in FIG. 5, the foreign substance removal device 11 is supported at an upper side portion inside a support case 20 having a rectangular frame shape in plan view. In the lower part of the inside of the support case 20 and at the lower part of the foreign substance removing device 11, the processing target particles (pox) that has leaked the foreign substance removing device 11 are guided to the inlet part 21 of the hulling part 12. As a first discharge unit provided below, the lower-constricted wrinkle guide unit 22 and the foreign matter removed by the foreign material removing device 11 and falling downward from the conveyance end point of the foreign material removing device 11 are used. A constricted foreign matter guide section 24 for guiding the collection container 23 is provided.

[Foreign substance removal device]
The foreign matter removing device 11 will be described.
As shown in FIGS. 6 and 7, the foreign matter removing device 11 includes a driving roller 25 as a driving wheel that rotates around the first horizontal axis X1 along the front-rear direction, and a second parallel to the first horizontal axis X1. A plurality of passage holes 27a that are wound around a driven roller 26, a driving roller 25, and a driven roller 26 as a driven wheel that rotates around the horizontal axis X2, and that select and leak the particles to be processed as particles. An endless rotation belt 27 having an electric motor 28 for rotating the drive roller 25, a support frame 29 for supporting each member, and the like are provided.

  A receiving unit 30 that receives the particles to be processed discharged from the first transporting conveyor 16 and supplies the processed particles to the endless rotating belt 27 is provided on the upper portion of the foreign material removing device 11 in the conveyance direction. The receiving unit 30 is provided with a plurality of flow-down plates 31 for receiving the processing target grains to be carried in and leveling them in the horizontal width direction while guiding the flow-down. Even if the first conveying conveyor 16 is intensively carried into the same location via the shooter 19, the receiving target 30 supplies the processing target grains to the endless rotation belt 27 in a state of being uniformed in the width direction. can do. Further, a leveling plate 32 made of a soft synthetic resin material as an elastic material for leveling the particles to be processed is provided at the lower end of the receiving portion 30 in the transport direction.

  The endless rotation band 27 is composed of a net-like body. That is, as shown in FIG. 7, a plurality of thin rod-like bodies are provided in a state extending over the entire width in the lateral width direction and spaced in the rotational direction. Neighboring rod-like bodies are entangled at two places in the lateral width direction at both ends and in the lateral width direction to form a mesh-like body, and the mesh-like body is connected in an endless manner to constitute an endless rotation band 27. .

  A large number of passage holes 27a formed in the endless rotation band 27 are set to a width that allows only one ridge to pass along the rotation direction, and the width along the width direction is the conveyor conveyance width. It is formed in a wide width corresponding to about one third of the width. Thus, the passage hole 27a is formed in a horizontally long shape that is long in the width direction. The lateral width of the passage hole 27a is formed to be a width that allows passage of not only ridges but also long impurities such as straw scraps K contained in the processing target grains.

  Between the upper rotation surface 27A and the lower rotation surface 27B of the endless rotation band 27, a fixed guide 33 that slides and guides the upper rotation surface 27A from the lower side is provided. The fixed guide 33 includes a plurality of guide portions 34 that extend along the rotation direction with an interval smaller than the lateral width of the passage hole 27 a of the endless rotation band 27. The plurality of guide portions 34 are arranged at predetermined intervals along the lateral direction, and are provided in a state where the three guide portions 34 are positioned within the lateral width of one passage hole 27a. Each of the plurality of guide portions 34 is formed of a strip-shaped plate body that extends in the rotation direction in a vertically oriented posture, and is integrally connected to a connection portion 35 having a rectangular frame shape in plan view.

  As shown in FIG. 6, the side plates 35 a on both sides in the width direction of the connecting portion 35 in the fixed guide 33 are provided on the both sides in the width direction of the support frame 29 by two bolts 36 provided at intervals in the rotation direction. It is connected to the frame part 29a. Thus, the fixed guide 33 is supported by the support frame 29.

  A position adjusting mechanism 37 capable of changing the vertical position of the fixed guide 33 with respect to the support frame 29 is provided. The bolt insertion hole of the side plate 35a is formed as a circular hole whose vertical position is fixed when the bolt 36 is inserted, and the bolt insertion hole of the side frame portion 29a is a length that can move in the vertical direction while the bolt 36 is inserted. It is formed in the hole. Accordingly, the vertical position of the fixed guide 33 can be changed and adjusted within the range of the long hole, and the mechanism connected by the bolt 36 through the long hole corresponds to the position adjusting mechanism 37.

  The driving roller 25 and the driven roller 26 are supported by the support frame 29 via a bearing 38 so as to be rotatable. In the electric motor 28, the motor main body 28 </ b> A is supported by the side frame portion 29 a of the support frame body 29 via the bracket 40, and the output shaft 28 </ b> B is interlocked and connected to the drive roller 25. When the drive roller 25 is driven by the electric motor 28, the two sprockets 41 provided on the drive roller 25 are engaged with the endless rotation band 27, and the endless rotation band 27 is rotationally driven.

  A side plate 35 b on the lower side in the transport direction of the connecting portion 35 in the fixed guide 33 is provided at a position corresponding to a boundary portion between the heel guide portion 22 and the foreign matter guide portion 24. Accordingly, the side plate 35b on the lower side in the transport direction corresponds to the partition member. A gap filling member 42 is provided to fill a gap between the lower end portion of the side plate 35b on the lower side in the transport direction and the lower rotation surface 27B of the endless rotation band 27. The gap filling member 42 is attached to the side plate 35b on the lower side in the transport direction by bolt connection. The gap filling member 42 is made of a soft synthetic resin material as an elastic body and can be retracted freely without being damaged even if it contacts with the endless rotation band 27. It can block, and it can avoid that waste scraps etc. mix in the hail guide part 22, or a haze mixes in the foreign material guide part 24.

  At the boundary portion between the heel guide portion 22 and the foreign matter guide portion 24 located below the lower rotation surface 27B of the endless rotation belt 27, straw scraps and the like are generated under the endless rotation belt 27. A lower partition member 39 is provided for avoiding mixing in the guide portion 22 and soot from entering the foreign matter guide portion 24. In this way, the gap between the endless rotation band 27 is made as small as possible.

  The foreign matter removing device 11 is installed in a state of being inserted from the upper side of the support case 20, and the connecting frame portions 29 b on both sides in the rotational direction of the support frame 29 are spaced from the side walls on both sides in the rotational direction of the support case 20. It is placed and supported by a pair of receiving tools 43 provided. During the maintenance work, the foreign substance removing device 11 can be easily lifted from the support case 20 and taken out.

  In the foreign matter removing apparatus 11, when the processing target particles are supplied to the receiving unit 30 by the first transporting conveyor 16, the processing target particles are supplied from the lower end outlet of the receiving unit 30 to the endless rotating belt 27, and endlessly rotating. As the moving belt 27 rotates, the kite M leaks from the passage hole 27a and is guided to the inlet portion 21 of the hulling portion 12 through the kite guide portion 22 and is conveyed without leaking the passage hole 27a. Straw waste K and the like falling downward from the end point portion is collected in the first collection container 23 through the foreign matter guide portion 24.

  Even if the particles to be processed are supplied in a state of being biased to a part of the region at the lower end outlet of the receiving unit 30, it can be leveled by the leveling plate 32. In addition, as shown in FIG. 7, when the long straw scrap K is in the horizontal orientation, it can pass through the passage hole 27 a of the endless rotation band 27, but on the lower side of the endless rotation band 27. It is received by the fixed guide 33 provided and can be transported to the transport end point. In this configuration, in the endless rotation band 27 formed of a net-like body formed by entanglement of rod-shaped bodies, there is little risk of straw scraps K being sandwiched and accumulated at the entangled portions of the rod-shaped bodies, and good over a long period of time. Can process.

[Coffin]
Next, the hulling portion 12 will be described. As shown in FIG. 8, the hulling unit 12 guides the impeller type hulling processing unit 44 that removes wrinkles and the processing target particles (wrinkles) supplied from the foreign matter removing apparatus 11 to the hulling processing unit. And a particle guide 45.

  As shown in FIG. 5, a box-shaped main body casing 47 as a housing is provided on the upper portion of the support base 46. The main body casing 47 functions as a frame body that supports a plurality of devices to be described later. The granular material guide portion 45 is provided in a state of being housed in the main body casing 47, and the hulling processing portion 44 is provided in a state of being supported on the outer surface of the rear side wall 47A as the lateral one side outer surface of the main body casing 47. ing.

  As shown in FIG. 8, the granule guide part 45 temporarily stores the soot discharged from the soot guide part 22 of the upper foreign matter removing apparatus 11 and supplied from the inlet part 21, and the soot is guided by the flow down guide part 49. A hopper 48 that guides the flow downward is provided.

The hulling processing unit 44 will be described.
As shown in FIGS. 8, 9, and 10, the hull processing unit 44 includes an impeller unit 50 that rotates about the horizontal axis X <b> 3, and a wrinkle supply unit 51 that supplies wrinkles to a radially inner side portion of the impeller unit 50. And a removal case 52 that covers them.

  The removal case 52 is formed in a substantially cylindrical shape having a predetermined width in the rotation axis direction so as to cover the outer peripheral portion of the impeller portion 50. A liner 53 serving as an outer detachment portion that covers the outer peripheral portion of the impeller portion 50 is provided on the inner surface side of the substantially cylindrical outer peripheral portion located in the outer peripheral portion of the impeller portion 50 in the detaching case 52. The liner 53 is formed in a band plate shape using a soft material such as urethane, for example. In the removal case 52, processed materials (including brown rice, rice husks, untreated rice cakes, etc.) after being removed (brown rice) by the blowing force generated with the rotation of the impeller unit 50 are externally provided. The conveyance guide part 52a which conveys to is formed in the state which continues in a row. The laterally outer portion 52 b of the removal case 52 is formed as a detachable lid, and is held in a closed state by a plurality of buckle mechanisms 54.

  The kite supply unit 51 includes a cylindrical kite guide body 55 in a state of being connected to the lower side of the flow guide unit 49 in the guiding direction. The rod guide body 55 is located on the same axis centering on the rotation axis X3 of the impeller portion 50, and the width in the axis direction is substantially the same as the width in the axis direction of the impeller portion 50.

  In the rod guide body 55, a rod inlet 56 is formed on one end side in the axial direction, and the rod guided by the hopper 48 through the flow guide portion 49 passes through the rod inlet 56 and is guided into the rod guide body 55. As shown, the flow guide unit 49 is connected in communication. The other end side in the axial direction of the rod guide body 55 is closed by a side wall portion 57. The side wall portion 57 also serves as a shaft support portion that rotatably supports a drive shaft 58 described later.

  As shown in FIGS. 9, 10, and 11, a plurality of soot discharge openings 59 are formed along the circumferential direction in a partial region of the outer periphery of the soot guide body 55. Specifically, a plurality (four) of the heel discharge openings 59 are formed over a predetermined range from the lowermost position toward the lower side in the rotation direction of the impeller portion 50 in the outer peripheral portion of the heel guide body 55. Each of the soot discharge openings 59 has a long hole shape that is long in the axial direction and narrow in the circumferential direction, and is formed in a state of being arranged in the circumferential direction with a gap narrower than the opening width in the circumferential direction.

  As shown in FIG. 11, the radially outer side portion 60 on the lower side in the rotational direction of the impeller portion 50 is chamfered in the inner peripheral edge of the soot discharge opening 59. By configuring in this way, the soot supplied to the inside of the soot guide 55 is easily discharged toward the impeller portion 50 from each of the plurality of soot discharge openings 59.

  As shown in FIG. 8, the main casing 47 extends from the front side wall 47 </ b> B opposite to the hulling processing unit 44 to the outside of the hulling processing unit 44 through the flow guide part 49 and the center of the hull supply unit 51. A drive shaft 58 is provided. The drive shaft 58 is rotatably supported via a bearing 61 on the front side wall 47 </ b> B of the main body casing 47 and the side wall portion 57 of the rod guide body 55.

  A portion of the drive shaft 58 opposite to the hull processing unit 44 is interlocked and connected to an electric motor 62 provided at the inner lower portion of the main body casing 47. The end of the drive shaft 58 on the side of the hull processing unit 44 is connected to the impeller unit 50 so as to be integrally rotatable. Accordingly, by driving the electric motor 62, the impeller unit 50 can be rotationally driven.

  Inside the rod guide body 55, there is provided a delivery blade 63 which is attached to the drive shaft 58 and rotates around the same axis as the rotation axis of the impeller portion 50. The delivery blade 63 is integrally formed on the outer peripheral portion of the boss portion 64 fitted on the drive shaft 58. Six delivery blades 63 are formed in a state of radially extending outward in the radial direction. Each of the feed blades 63 is formed such that the amount of the outward protrusion in the radial direction is gradually reduced toward the side of the heel inlet 56 in the axial direction. In this way, the soot supplied from the hopper 48 via the flow guide 49 can easily enter the inside of the soot guide 55 through the soot inlet 56.

  As shown in FIGS. 8, 9, and 10, the impeller portion 50 includes a plurality of impeller blades 65 (an example of a blade body) that extend radially outward in the radial direction and the heel discharged from the heel supply portion 51. A dispersion guide member 66 is provided that is dispersed along the rotation axis direction and guides to a space between adjacent impeller blades 65.

  The plurality of impeller blades 65 guide the ridge supplied by the ridge supply section 51 on the sliding guide surface 67 extending along the radial direction, and guide the ridge outward in the radial direction by centrifugal force accompanying rotation. . Each impeller blade 65 is formed of a plate-like metal material and forms a wide sliding guide surface 67.

  A saddle guide block body 69 that functions as an inner removal portion having a collision surface 68 that intersects the sliding guide surface 67 in a state of rotating integrally with each of the plurality of impeller blades 65 in the radially outer side portion. (An example of a receiving body) is provided. The eaves guide block body 69 is formed by integral molding using a soft material made of urethane which is a soft synthetic resin.

  Disc-shaped support plates 70 and 71 made of a synthetic resin material are provided on both sides in the axial direction of the impeller blades 65, and the left and right side surfaces of each impeller blade 65 are connected to the support plates 70 and 71. ing. The outer support plate 70 is linked to the drive shaft 58 via the boss portion 72 so as to transmit torque.

  The dispersion guide member 66 includes a plurality of partition forming members 73 arranged in a posture perpendicular to the rotation axis at a set interval along the rotation axis direction, and a plurality of sliding guides arranged radially at intervals in the circumferential direction. The member 74 is integrally assembled. The dispersion guide member 66 is integrally fixed to the outer support plate 70 and is interlocked and coupled to the drive shaft 58 so as to transmit torque, similarly to the impeller portion 50.

  One ridge passing portion 75 is formed in a region surrounded by two adjacent partition forming members 73. The eaves passage portion 75 has a lateral width that allows a single eaves to pass radially outward along the rotational axis direction, and is divided into a plurality of parts in a state of being aligned in the rotational axis direction. Specifically, the lateral width of one heel passage portion 75 is set to be narrower than the width in the long direction of the heel and wider than the width in the short direction of the heel. The eaves passage portion 75 is provided in a state extending over the entire circumferential direction, and is partitioned into a plurality of regions in the circumferential direction by a plurality of sliding guide members 74.

  The soot guided to the soot guide body 55 by the flow guide 49 is discharged outward from the plurality of soot discharge openings 59. At that time, it is allowed that the wrinkles sequentially enter one wrinkle passage portion 75 one by one in the rotational axis direction. Thus, since the width along the rotation axis direction with respect to the wrinkle passage portion 75 is provided to a width that restricts the entry of each grain, the wrinkles are leveled and dispersed in the axial direction.

  When the impeller portion 50 rotates, when the kite is guided radially outward by the centrifugal force accompanying the rotation and collides with the collision surface 68 of the kite guide block body 69, the impact causes the deflation (pallet treatment). The rice cake is separated into rice husk and brown rice. Although some of the wrinkles may remain without being removed, they are thrown toward the outer liner 53 as the impeller portion 50 rotates, and the removal treatment is performed again on the outer liner 53.

  The processed product that has been deflated and separated into brown rice and rice husk is conveyed to the wind selection unit 13 through the conveyance guide unit 52 a of the detachment case 52 by the blowing force accompanying the rotation of the impeller unit 50.

[Wind Selection Unit] Next, the wind selection unit 13 will be described.
As shown in FIGS. 5 and 12, the wind selection unit 13 includes a wind selection guide unit 76 that guides a processed product from the rice hull processing unit 44 in which brown rice and rice husks are mixed, and a wind selection guide unit 76. There is provided a wind selection action unit 77 that causes a sorting wind to act on the processing material flowing down and separates the processing material into brown rice and rice husk.

  As shown in FIGS. 2 and 8, the wind selection guide portion 76 is provided in a state of being housed inside the main body casing 47, and the wind selection action portion 77 is formed on the rear side wall 47 </ b> A as the lateral one side outer surface of the main body casing 47. It is provided in a state supported by the outer surface. The granule guide unit 45 and the wind selection guide unit 76 are provided in a state of being aligned in the horizontal direction, and the hulling processing unit 44 and the wind selection operation unit 77 are arranged side by side on the outer surface of the rear side wall 47A of the main body casing 47. It is equipped with.

  An inlet portion 78 of the wind selection guide portion 76 is formed in the upper wall 47C of the main body casing 47, and is provided at the outlet portion of the hulling processing portion 44, that is, above the conveyance guide portion 52a of the removal case 52 and the wind selection guide portion 76. The inlet portion 78 is connected in communication by a connecting pipe 79 as a communication portion. As shown in FIGS. 3 and 5, the connecting pipe 79 passes between the hulling processing unit 44 and the wind-selection acting unit 77. Due to the blowing force accompanying the rotation of the impeller unit 50, the processed material is conveyed to the inlet portion 78 of the wind selection guide unit 76 through the conveyance guide unit 52 a and the connection pipe 79.

  As shown in FIG. 12, the wind-selection guide unit 76 includes a granule flow-down passage 76A that guides the processed material from the hulling processing unit 44, and the particle guide unit 45 with respect to the granule flow-down passage 76A. And a buffering ventilation path 76B located on the opposite side of. The granular material flow passage 76A is provided with a plurality of flow-down plates 80 that receive the processed material to be introduced and alternately guide it to flow in opposite directions. At the bottom 47D of the main body casing 47 positioned below the granule flow passage 76A, a discharge portion 81 of the wind selection guide portion 76 is formed.

  The buffer air passage 76B is formed by a substantially U-shaped partition member 82. An outside air intake port 83 is formed in the lateral side wall 47E of the main casing 47 on the side of the hulling processing portion 44, and the external air intake port 83 and the buffer air passage 76B are communicated with each other in a state of crossing the granule flow passage 76A. An air ventilation path 76C is formed.

  On the inner side of the lateral side wall 47E on the side of the hulling processing section 44 of the main casing 47 where the outside air intake 83 is formed, an air passage 76C for sorting is formed by utilizing an empty area on the outer side of the flow guide section 49. Is formed. A vertical ventilation path 76C1 for preventing brown rice from flowing into the buffer ventilation path 76B between the buffer ventilation path 76B and the granule flow-down path 76A in the sorting ventilation path 76C. Is formed. An adjustment ventilation path 85 communicating with the air volume adjustment opening 84 formed in the upper wall 47C of the main body casing 47 is formed on the side of the buffer ventilation path 76B opposite to the longitudinal ventilation path 76C1. Each of the outside air inlet 83 and the air volume adjusting opening 84 is provided with a slide type shielding plate 86, and by changing the opening area by sliding the shielding plate 86, the air volume of the selected air can be changed and adjusted. it can.

  In addition, on the inner side of the lateral side wall 47E on the side of the hull processing unit 44 of the main body casing 47, impurities such as straw scraps discharged through the foreign material guide unit 24 of the foreign material removing device 11 are utilized using the empty space. A passing passage 87 is formed. Contaminants such as straw scraps pass through the discharge passage 87 and are discharged from the discharge port 87a to the first collection container 23 and collected.

  A wind-selective action portion 77 is provided at a location corresponding to the buffer ventilation passage 76 </ b> B on the outer surface of the rear side wall 47 </ b> A of the main body casing 47. 5 and 12, the rear side wall 47A of the main body casing 47 is formed with an opening 88 that communicates the wind-selective action portion 77 and the buffering ventilation path 76B.

  The granular material flow path 76A can flow the plurality of flow-down plates 80 alternately to equalize the processed material in the lateral width direction and make it as thin as possible. Then, when the fan 89 provided in the wind selection operation unit 77 sucks in through the opening 88, the selection wind is generated, and the selection wind passes through the selection ventilation path 76C. As described above, the sorting wind acts on the layered processed material, the light rice husk is sucked toward the wind sorting action portion 77, and the heavy brown rice is discharged downward from the lower discharge portion 81. By performing the suction action by the fan 89 through the buffer ventilation path 76B, the granule flow-down passage 76A can be evenly ventilated along the axial center direction of the fan 89, and the particles to be processed flow down. Therefore, the sorting air can be applied almost evenly and with little bias.

  As shown in FIG. 5, the wind-selection action unit 77 rotates around an axis X <b> 4 parallel to the rotation axis X <b> 3 of the impeller part 50 inside a substantially cylindrical fan casing 90 similar to the removal case 52. A fan 89 is provided. The fan casing 90 is formed with an outer guide portion 90 a that guides the discharged matter such as chaff that has been sucked through the opening 88 and splashed by the fan 89. A discharge duct 91 that guides discharged materials to the outside of the equipment is connected to the outward guide portion 90a. Although not shown, on the outside side of the facility, for example, a cyclone type dust collector is connected to the discharge duct 91, and discharged matter such as rice husk is collected.

[Transmission structure]
A belt transmission mechanism 92 is provided as a power transmission unit that power-couples the impeller unit 50 as a hulling rotary member of the hulling processing unit 44 and the fan 89 as a blower rotary member of the wind selection operation unit 77. ing. The belt transmission mechanism 92 is a device lateral outer side opposite to the hulling processing unit 44 and the wind selection operation unit 77 with respect to the particle guide unit 45 and the wind selection guide unit 76 in a plan view, that is, a main body casing. 47 is provided on the outer surface of the front side wall 47B. An electric motor 62 as a drive unit that applies power to the belt transmission mechanism 92 is provided below the wind selection guide unit 76.

  Specifically, as shown in FIGS. 3 and 8, the belt transmission mechanism 92 is provided on the front side wall 47 </ b> B of the main body casing 47 as a device lateral outer side opposite to the hulling processing unit 44 and the wind-selection acting unit 77. Provided on the outside. The electric motor 62 is located below the granule flow passage 76 </ b> A in the wind selection guide portion 76 and is provided in a state of being supported by the bottom portion 47 </ b> D of the main body casing 47. The belt transmission mechanism 92 includes a pulley 93 attached to the output shaft 62 a of the electric motor 62, a pulley 94 attached to the drive shaft 89 a of the fan 89, and a pulley 95 attached to the drive shaft 58 of the hull processing unit 44. And a transmission belt 96 wound around them. Although not shown, a tension mechanism that provides tension is also provided. The outer side of the belt transmission mechanism 92 is covered with a transmission case 98.

[Switching structure between rice bran and brown rice]
As shown in FIG. 12, a partition part 99 is provided between the granule guide part 45 of the hulling part 12 and the wind selection guide part 76 of the wind selection part 13. And in the upper part of the partition part 99, the 1st supply state which supplies the process target particle | grains supplied to the inlet part 21 of the granule guide part 45 to the granule guide part 45, and the process target supplied to the inlet part 21 A switching mechanism 100 is provided that can be switched to a second supply state in which the grains are supplied to the wind selection guide unit 76.

  The switching mechanism 100 allows the inlet portion 21 and the granule guide portion 45 to communicate with each other, and allows the inlet portion 21 and the wind selection guide portion 76 to communicate with each other, and the inlet portion 21 and the wind selection guide portion 76 to communicate with each other. And a switching plate 101 that can be switched to a second posture for blocking the inlet 21 and the particle guide 45, and a switching motor 102 that swings the switching plate 101. The switching motor 102 is provided on the lateral side of the apparatus on the side where the hulling processing unit 44 and the wind-selection acting unit 77 exist, that is, on the outer surface of the rear side wall 47 </ b> A of the main body casing 47.

  As shown in FIG. 8, the switching plate 101 is swingably supported by the main body casing 47 by a support shaft 103 parallel to the drive shaft 58 of the hulling processing unit 44. When the switching plate 101 is switched to the first posture, the inlet portion 21 formed on the upper surface of the main body casing 47 and the granule guide portion 45 of the hulling processing portion 44 are communicated with each other, and the inlet portion 21 and the wind selector are used. It will be in the state which interrupts | blocks the flow-down start position of the guide part 76. FIG. When the switching plate 101 is switched to the second posture, the inlet portion 21 and the flow start position of the wind selection guide portion 76 communicate with each other, and the inlet portion 21 and the granule guide portion 45 of the hulling processing portion 44 are blocked. It becomes a state to do.

  The processing target grains put in the feeding hopper 5 are lifted and conveyed by the first transporting conveyor 16, and after passing through the foreign substance removing device 11, are supplied to the inlet portion 21. Therefore, when the processing target grain is cocoon, the switching plate 101 is switched to the first posture. On the other hand, when the processing target grain is brown rice, the switching plate 101 is switched to the second posture. The switching plate 101 is switched by operating the switching motor 102 based on a command from the switch 9.

[Stone removal machine]
In the area below the main body casing 47 and surrounded by the lower side of the support base 46, when rice cake is introduced, the brown rice is introduced after the rice hulling process and the wind selection process are performed. In such a case, after the wind selection process is performed, a rocking sorting type stone remover 14 that acts on the processing target grain is provided. Although not described in detail, the stone remover 14 is discharged from the one-side outlet 105 by causing the light brown rice to flow down as it is due to the specific gravity difference while swinging and transporting the supplied processing target grains by the swing transfer plate 104, It is lifted and conveyed by the second lifting conveyor 18. Heavy objects such as pebbles are discharged from the opposite outlet 106 while being stored on the lower layer side of the swinging transfer plate 104. Contaminants such as pebbles discharged from the opposite outlet 106 are collected in a second collection container 107 serving as a second discharge unit.

  As shown in FIG. 3, the second collection container 107 is located on the side of the support base 46 and is provided in a state of being supported on the floor surface of the equipment, like the support base 46. The first recovery container 23 is provided in a state of being placed and supported so as to overlap the upper side of the second recovery container 107. Therefore, the 1st collection container 23 and the 2nd collection container 107 are provided in the state where it was lined up and down in the horizontal one side part of equipment.

[Rice milling department]
The brown rice after the sorting process by the stone remover 14 is lifted and conveyed by the second lifting conveyor 18 and supplied to the rice milling unit 15. Although not described in detail, the rice milling unit 15 performs brown rice hopper 108 for temporarily storing the brown rice supplied from the second lifting conveyor 18 and rice milling processing of the brown rice supplied from the brown rice hopper 108 on the upper part. With. The rice milling unit 109 has a rice milling chamber formed therein, and a rice milling roll (not shown) rotated around the vertical axis by a drive motor 110 is provided inside the rice milling chamber, and brown rice is supplied to the rice milling chamber. Rice milling is then performed to remove rice bran from brown rice. Although not described in detail, the pressure is adjusted by a pressure adjustment mechanism (not shown) so that the brown rice in the rice milling chamber is polished at an appropriate pressure, and white rice that matches the whiteness selected by the customer is obtained. Adjustments are made. The white rice obtained after the completion of the rice milling process is stored in the white rice hopper 6 and then collected by a collection bag separately prepared by the user opening the white rice hopper 6.

[Another embodiment]
(1) In the above embodiment, the endless rotation band 27 is configured by a net-like body. However, as the endless rotation band, the endless rotation band forms a large number of passage holes in the band plate member. You may do it.

(2) In the above embodiment, the gap filling member 42 is provided on the lower side of the endless rotation band 27. However, the gap filling member 42 may not be provided.

(3) In the above embodiment, the position adjustment mechanism 37 that can change the vertical position of the fixed guide 33 is provided. However, the vertical position of the fixed guide 33 may be fixed.

(4) In the above embodiment, the foreign substance removing device 11 is provided on the upper side of the rice bran portion 12, but may be provided on the upper side of the rice milling portion 15.

(5) In the above embodiment, the one applied to the coin-type rice milling processing equipment is shown. However, the present invention may be applied to a dedicated rice milling apparatus that performs only the rice milling process or a dedicated rice milling apparatus that performs only the rice milling process. .

  INDUSTRIAL APPLICABILITY The present invention can be applied to a granule sorting apparatus that removes foreign matters such as straw scraps contained in grains such as rice bran and brown rice.

22 Grain collection unit 24 Foreign matter collection unit 25 Drive wheel body 26 Driven wheel body 27 Endless rotation band 27a Passing hole 27A Upper rotation surface 27B Lower rotation surface 29 Support frame body 33 Fixed guide 34 Guide portion 35b Partition member 37 Position adjustment mechanism 42 Gap filling member

Claims (5)

  A drive wheel rotating around the first horizontal axis, a driven wheel rotating around the second horizontal axis parallel to the first horizontal axis, and winding around the drive wheel and the driven wheel And an endless rotating band having a plurality of passage holes for sorting and leaking particles, and a fixed guide for slidingly guiding the upper rotating surface of the endless rotating band from below. Body sorting device. The endless rotation band is constituted by a net-like body,
In the lateral width direction of the endless rotation band, the width of the passage hole is formed to be wide enough to allow passage of foreign substances contained in granules,
The granular material sorting apparatus according to claim 1, wherein the fixed guide includes a plurality of guide portions extending along the rotation direction with an interval smaller than a lateral width of the passage hole.   The particle according to claim 1 or 2, further comprising a particle collecting unit that collects the particles and a foreign material collecting unit that collects foreign substances contained in the particles, below the endless rotation zone. Body sorting device. A partition member is provided between the upper rotation surface and the lower rotation surface of the endless rotation band to partition the granular material recovery unit and the foreign material recovery unit,
The granule selection apparatus according to claim 3, further comprising a gap filling member configured by an elastic body and filling a gap between a lower end portion of the partition member and a lower rotation surface of the endless rotation band. A support frame for supporting the driving wheel and the driven wheel,
The granule selection apparatus according to any one of claims 1 to 4, further comprising a position adjustment mechanism capable of changing a vertical position of the fixed guide with respect to the support frame.

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