JP2005305292A - Residual grain removing apparatus, grain polishing apparatus and residual grain removing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a residual grain removing apparatus capable of surely removing residual grains in a grain polishing chamber without use of a large-scale compressor and a large-scale air tank, a grain polishing apparatus and a residual grain removing method. <P>SOLUTION: A vertical type rice polishing apparatus 10 removes the bran layer from the surface of rice grains while raising the grains fed to a grinding rice-polishing chamber 32. When feeding of the grains to the rice-polishing chamber is stopped, the residual grain removing apparatus 120 opens a power operation valve 126 arranged in an air hose 124 constituting a passage connecting between a compressor 122 and the chamber 32 intermittently by a controller 128, and compressed air supplied to the rice-polishing chamber 32 is blown onto the grains remaining in the bottom part of the chamber 32, and the grains are transferred downstream of the chamber 32 by the compressed air flow and removed from the bottom part of the chamber 32. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is applied to a residual grain removing device applied to a grain refiner for processing grains such as rice and wheat, a grain refiner provided with this residual grain remover, and the above grain refiner. The present invention relates to a method for removing residual grains.

  As a rice milling device, the rice milling method uses a friction-type rice milling device that removes the cocoon layer on the surface of brown rice by the frictional force acting between the brown rice, and a large number of abrasive grains formed on the surface of the rice milling roll. There are a grinding-type rice milling device that forcibly removes the wrinkle layer and a grinding / friction-type rice milling device that first performs grinding rice milling and then friction milling to improve the milling accuracy (see, for example, Patent Document 1).

  The grinding-type rice milling apparatus or the grinding / friction-type rice milling apparatus includes a grinding-type rice milling unit and a supply cylinder for supplying brown rice (grain) to the grinding-type rice milling unit. The grinding-type rice milling unit includes an initial milling roll that rotates, and a dehuller that is disposed so as to cover the initial milling roll, and in a milling chamber (milling chamber) formed between these, The brown rice supplied from the supply cylinder is ground and polished by the initial rice mill roll while being rotated from the lower side to the upper side by being guided by the multi-helix provided in the dehulling cylinder while rotating in the circumferential direction by the rotation of the initial rice milling roll. . The supply cylinder pushes brown rice into the milled rice chamber and supplies it by the conveying force of the spiral blades and the conical cereal stand provided therein. As a result, the brown rice is ground and polished while continuously raising the rice milling chamber. The milled rice milled by the grinding-type rice mill is either discharged as a product or sent to the friction-type milled rice arranged in the grinding-type rice mill as semi-milled rice for final rice milling.

  By the way, when the brown rice in the supply cylinder is reduced at the end of the rice milling process, the brown rice whose conveying force of the spiral blade and the conical cereal cease does not act is supplied to the rice milling room of the grinding-type rice milling part (pressed against the initial rice mill roll 13), and remains from the lower part of the milling chamber of the grinding-type rice milling part to the lower part of the supply cylinder (residual grains are generated) as shown in FIG. In the figure, 200 indicates a rice milling chamber, 202 indicates an initial rice milling roll, 204 indicates a supply cylinder, 206 indicates a spiral wing, and Q indicates brown rice.

  Therefore, in order to eliminate the residual particles as described above, a configuration is known in which a blowing cylinder coupled to a blower blower is connected to an upper portion of the supply cylinder 204 (see, for example, Patent Document 2). In this configuration, the generation of residual grains is prevented by pushing the residual grains in the lower part of the milled rice chamber into the milled rice chamber by the air flow generated by the operation of the blower blower.

In addition, instead of blowing by a blower blower, a configuration is also known in which residual grains are blown off by blowing compressed air obtained from a compressor (compressor) for about 15 seconds to 60 seconds and carried out into a rice milling chamber or a friction-type rice milling unit. Yes. In this configuration, the compressor as a compressed air source can be shared with, for example, another rice milling device or another device including an air cylinder or an air nozzle, and there is an advantage that the entire facility can be configured compactly.
Japanese Patent No. 3091346 Japanese Patent No. 3142938

  However, in the technique of blowing the residual grains using the compressed air described above, the compressed air is continuously blown for a long time. There was a problem of doing. Further, when the compressor is shared with other rice milling devices or devices, the pressure of the compressed air supplied to the other devices is also lowered, and there is a concern that these other devices may be adversely affected. As a countermeasure, if a compressor or an air tank having a large capacity (capacity) capable of supplying sufficient compressed air to all equipment including the rice milling apparatus is provided, the scale of the facility is increased and the cost is increased.

  In view of the above facts, the present invention takes into account the above facts, and does not increase the capacity of the compressor or the air tank. The purpose is to obtain a method.

  The residual grain removing apparatus according to the invention of claim 1 is applied to a cerealing apparatus that performs grain processing while raising the grain supplied from the lower part of the cereal room, and the grain is supplied to the cereal room. A residual grain removing device for discharging grains remaining in the lower part of the cereal chamber to the downstream of the cereal room by an air current when there is no more, comprising a discharge part of a compressor and a lower part of the cereal room. A flow path that communicates, an open / close valve provided in the flow path, and when the grain is no longer supplied to the cereal chamber, the open / close valve is intermittently opened to remain in the lower part of the cereal chamber. And a control device that blows an air current on the finished grain.

  In the residual grain removing apparatus according to claim 1, when the grain is no longer supplied to the grain room in the grain apparatus, that is, when the grain remains in the lower part of the grain room, The compressed grain (for example, compressed air) of a compressor is sprayed on the remaining grain (hereinafter referred to as residual grain), and the residual grain is carried downstream by a gas stream and removed. Specifically, the control device intermittently opens an on-off valve provided in a flow path that communicates between the compressor and the cereal room, so that compressed gas is intermittently blown to the remaining grains, and the residue is removed from the cereal room. Blow it downstream.

  Here, since the control device opens the on-off valve intermittently, in other words, after the on-off valve is opened for a predetermined time, a cycle of separately closing for a predetermined time is repeated. A decrease in gas pressure is suppressed or prevented, and the ability to carry out residual particles is maintained. That is, if the on-off valve is kept open as in the prior art during the period of carrying out the residual particles, the pressure of the compressed gas decreases and the residual particle carrying-out capacity decreases. The pressure of the compressed gas is restored during the closing period of the on-off valve, and the carrying-out ability is maintained over the period during which the remaining grains are carried out.

  Thus, in the residual grain removing apparatus according to the first aspect, the residual grains in the cereal chamber can be reliably removed without increasing the capacity of the compressor and the air tank. The predetermined time for opening the on-off valve is preferably, for example, 1 to 5 seconds, and the pressure upstream of the on-off valve is restored as another predetermined time for closing the on-off valve during the period of carrying out the residual particles. The time required for this (depending on the capacity of the compressor, the opening time of the on-off valve, etc.), for example, preferably 1 to 5 seconds.

  According to a second aspect of the present invention, there is provided the residual grain removing device according to the first aspect, wherein the flow path supplies the compressed gas of the compressor to a device different from the cerealing device. It is characterized by having branched to.

  In the residual grain removing apparatus according to claim 2, a flow path communicating with the compressor and the cereal chamber is branched, and this branch path is an apparatus different from the above cereal apparatus (another cereal apparatus, a refined grain). Compressed gas (atmospheric pressure, airflow) of the compressor is supplied to the auxiliary machine of the cereal apparatus, the pre-processing or post-processing apparatus of the cereal apparatus, and the like. That is, the compressor is shared between the cereal apparatus to which the present residual grain removing apparatus is applied and the other apparatus.

  Here, as described above, since the pressure during the period of carrying out the residual particles is maintained by intermittently opening the on-off valve, the pressure of the compressed gas supplied to the other device is also maintained. The adverse effect on the operation of the other device is prevented.

  The cereal apparatus which concerns on invention of Claim 3 is a cereal processing part which processes cereal while raising the grain supplied from the lower part of the cereal room, the discharge part of a compressor, and the lower part of the said cereal room The cereal chamber by intermittently opening the on-off valve when no grain is supplied to the cereal chamber. And a control device for transporting the grain remaining in the lower part of the slab to the downstream of the milling chamber by a compressed gas stream.

  In the cerealing apparatus according to claim 3, while raising the cereal in the cereal chamber of the cereal processing unit, the cocoon layer on the surface of the cereal is removed and cerealed. The force that raises the grain in the cereal chamber may be given by, for example, a cereal processing unit, or may be given by an apparatus that supplies the cereal processing unit. When the grain is no longer supplied to the grain room in the grain machine, the grain flow is lost and the grain remains in the lower part of the grain room. In this grain refiner, in order to remove grain remaining in the lower part of the grain chamber (hereinafter referred to as residual grain), when the grain is no longer supplied to the grain room, the compressor is compressed into the residual grain. A gas (for example, compressed air) is blown, and the residual grains are carried out downstream of the cereal chamber by an air current. Specifically, the control device intermittently opens an on-off valve provided in a flow path communicating with the compressor and the cereal chamber, so that compressed gas is intermittently blown to the residual grains, and the residual grains are refined. Blow down the chamber.

  Here, since the control device opens the on-off valve intermittently, in other words, after the on-off valve is opened for a predetermined time, a cycle of separately closing for a predetermined time is repeated. A decrease in gas pressure is suppressed or prevented, and the ability to carry out residual particles is maintained. That is, if the on-off valve is kept open as in the prior art during the period of carrying out the residual particles, the pressure of the compressed gas decreases and the residual particle carrying-out capacity decreases. The pressure of the compressed gas is restored during the closing period of the on-off valve, and the carrying-out ability is maintained over the period during which the remaining grains are carried out. Further, for example, when the compressor is shared with another apparatus, it is possible to prevent an adverse effect on the operation of the other apparatus.

  As described above, in the cerealing apparatus according to the third aspect, the residual grains in the cereal chamber can be reliably removed without increasing the capacity of the compressor or the air tank. The predetermined time for opening the on-off valve is preferably, for example, 1 to 5 seconds, and the pressure upstream of the on-off valve is restored as another predetermined time for closing the on-off valve during the period of carrying out the residual particles. The time required for this (depending on the capacity of the compressor, the opening time of the on-off valve, etc.), for example, preferably 1 to 5 seconds.

  The cereal apparatus according to claim 4 is the cereal apparatus according to claim 3, wherein the lower part is communicated with the lower part of the cereal chamber, and the grains are continuously supplied to the lower part of the cereal chamber. A grain supply part is further provided, The flow path is connected to the lower part of the grain room via the lower part of the grain supply part, It is characterized by the above-mentioned.

  In the grain refiner according to claim 4, the lower part of the grain supply part is connected to the lower part of the grain room, and this grain supply part continuously supplies the grain to the lower part of the grain room. And when the grain of a grain supply part decreases, a grain will no longer be supplied to a grain room and a residual grain removal apparatus will operate | move.

  Here, since the flow path for blowing compressed gas to the residual grains in the cereal chamber communicates with the cereal room via the lower part of the grain supply unit, a relatively strong air current is carried out (removed) ) It flows along the path and the residual grains are effectively carried out downstream of the cereal chamber. In addition, residual grains on the upstream side of the rice milling room (such as the communication part between the rice milling room and the grain supply unit) are also removed. In particular, if the flow path is connected to the side opposite to the communicating part with the cereal room in the grain supply site so that the airflow is directly blown to the residual grains, the residual grains are more effectively produced in the cereal room. It is carried out downstream. In particular, if the upper part of the grain supply unit is closed from the communicating part with the grain room during the grain carry-out period, the direction of the air flow in a direction other than the grain carry-out direction (of the grain supply part Since it is prevented from flowing to the upper side), the residual grains are carried out more effectively to the downstream of the grain chamber.

  The residual grain removing method according to the invention of claim 5 is applied to a cerealing apparatus that performs grain processing while raising the grain supplied from the lower part of the cereal room, and the cereal room is supplied with the grain. When no more, the compressed gas is intermittently blown onto the grain remaining in the lower part of the cereal chamber, and the grain is carried downstream from the cereal chamber.

  In the residual grain removing method according to claim 5, when the grain is no longer supplied to the grain room in the grain device, that is, when the grain remains in the lower part of the grain room, Compressed gas (for example, compressed air) is intermittently sprayed on the remaining grain (hereinafter, referred to as residual grain), and the residual grain is carried downstream of the milling chamber.

  Here, in order to spray the compressed gas intermittently onto the residual grains when carrying out the residual grains, in other words, to repeat the operation of spraying the compressed gas for a predetermined time and the operation of stopping the spraying separately for a predetermined time. During the period of carrying out the residual particles, a decrease in the pressure of the compressed gas from the compressed gas source such as a compressor is suppressed or prevented, and the ability to carry out the residual particles is maintained. That is, if the compressed gas continues to be blown as in the past during the period of carrying out the residual particles, the pressure of the compressed gas is lowered and the remaining carrying capacity is lowered, but the compressed gas is blown intermittently on the residual particles. The pressure of the compressed gas is restored during the operation stop period, and the carrying capacity is maintained during the period during which the residual grains are carried out. Therefore, in this residual grain removal method, the residual grains can be reliably carried out by receiving the supply of the compressed gas from the compressed gas source having a small capacity.

  Thus, in the residual grain removal method according to the fifth aspect, the residual grains in the cereal chamber can be reliably removed without increasing the capacity of the compressor and the air tank. The predetermined time for performing the spraying operation is preferably, for example, 1 to 5 seconds, and the additional predetermined time for stopping the spraying operation is the time required to restore the pressure (capacity of the compressor or the like For example, 1 to 5 seconds.

  The residual grain removing method according to the invention of claim 6 is the residual grain removing method according to claim 5, wherein when the grain is no longer supplied to the cereal room, it is between the compressor and the cereal room. The compressor is operated during a period of repeating the cycle of opening and closing the on-off valve by repeating the cycle of opening and closing the on-off valve provided in the air and blowing the compressed gas intermittently on the grains remaining in the lower part of the cereal chamber. It is characterized by continuing.

  In the residual grain removing method according to claim 6, the cycle of opening and closing an on-off valve provided between the compressor and the rice milling chamber is repeated (for a predetermined number of times or until a predetermined time elapses), whereby compressed gas is discharged. Spray the remaining grains intermittently. Further, the compressor is continuously operated during a period in which the compressed gas is blown onto the residual grains and the residual grains are carried out. Thereby, the pressure drop during the period when the on-off valve is opened is suppressed, and the pressure upstream of the on-off valve is reliably restored during the period when the on-off valve is closed.

  As described above, the residual grain removing apparatus and the grain refiner according to the present invention open the on-off valve intermittently to carry out the residual grains, so that the precision is not increased without increasing the capacity of the compressor and the air tank. It has the outstanding effect that the residual grain of a grain room can be removed reliably. Moreover, since the residual grain removal method according to the present invention intermittently blows compressed gas onto the residual grains, it is possible to reliably remove residual grains in the cereal chamber without increasing the capacity of the compressor and the air tank. It has an excellent effect of being able to.

  A vertical rice milling apparatus 10 serving as a grain milling apparatus according to an embodiment of the present invention will be described with reference to FIGS. First, the basic configuration of the vertical rice milling apparatus 10 will be described, and then the residual grain removing apparatus 120 which is a main part of the present invention will be described.

(Overall configuration of vertical rice milling apparatus 10)
FIG. 1 shows an overall configuration of a vertical rice milling apparatus 10 according to the present embodiment in a longitudinal sectional view. As shown in the figure, a rotary main shaft 12 that is hollow inside and has a plurality of air jets formed at predetermined positions is provided upright at the center of the vertical rice milling apparatus 10. The rotary spindle 12 is rotatably supported by a lower support plate 14 disposed at the lower part of the apparatus via a support bearing 16. A driven pulley 18 is fixed to the lower end portion of the rotating main shaft 12, and a driving pulley (not shown) is disposed at a position facing the driven pulley 18 in the lateral direction correspondingly. The driven pulley 18 and the drive pulley are connected to each other by a belt (not shown), and the rotary main shaft 12 is driven by a rotary main shaft drive motor connected to an operation panel (not shown) so that the rotary main shaft 12 has its axis line through the drive pulley and the driven pulley 18. It is the structure which rotates around. Further, an air supply pipe 20 is connected to the lower end portion of the rotary main shaft 12 so that air can be supplied into the rotary main shaft 12.

  A cerealing roll 22 having a thread formed on the outer peripheral portion is coaxially attached to the upper end portion of the rotating main shaft 12. Accordingly, when the rotary spindle 12 rotates, the cerealing roll 22 also rotates integrally.

  On the outer peripheral side of the cerealing roll 22, a grinding-type rice milling unit 24 as a grain processing unit is disposed. The grinding-type rice milling processing unit 24 is fixed to a substantially cylindrical rotating cylinder 26 concentrically arranged on the outer peripheral side of the cerealing roll 22 and is fixed to the outer peripheral part on the upper stage side of the rotating cylinder 26 so as to be integrated with the rotating cylinder 26. The grinding-type rice milling roll 28 that rotates in a straight line, and the degreasing cylinder 30 that is disposed in a fixed state on the outer peripheral side of the grinding-type rice milling roll 28 and that is formed in a cylindrical shape by a punched perforated plate. And between the outer peripheral surface of the grinding-type rice milling roll 28 and the dehulling cylinder 30, a grinding rice milling chamber 32 as a milling chamber is formed, and between the outer peripheral side of the dehulling cylinder 30 and the apparatus peripheral wall. A tub chamber 34 is formed. In the grinding type rice milling unit 24, the soot layer (slag flour) generated when grinding in the grinding rice milling chamber 32 is discharged into the milling chamber 34 through the demolding cylinder 30 made of a perforated plate. ing.

  The rotating cylinder 26 is rotatably supported via a pair of upper and lower bearings 37 on a cerealing cylinder 35 fixed to an upper support plate 42 disposed on the upper stage side of the apparatus so as not to rotate. Is formed with a cerealing roll receiving portion 36 in which the upper portion is a mortar-shaped space and the lower portion is a cylindrical space. The cerealing roll receiving unit 36 communicates with the grinding rice milling chamber 32 in the gap between the upper part and the apparatus top plate, and the cerealing roll 22 is inserted into the cerealing roll receiving unit 36. And it is arranged in a non-contact state.

  An annular recess 38 is formed on the outer periphery of the upper end of the rotary cylinder 26, and a grinding rice milling roll 28 having a substantially T-shaped cross section is fixedly attached in the recess 38. A large number of abrasive grains made of silicon carbide or the like (superhard grains) are formed on the surface of the grinding-type rice mill roll 28. Further, a driven pulley 40 is fixed to the outer periphery of the lower end portion of the rotary cylinder 26, and a driving pulley (not shown) is disposed at a position facing the driven pulley 40 in the lateral direction correspondingly. The driven pulley 40 and the driving pulley are connected to each other by a belt. When the grinding roll drive motor connected to an operation panel (not shown) is driven, the grinding type rice mill roll 28 has its axis line through the driving pulley and the driven pulley 40. It is the structure which rotates around.

  A raw material supply unit 44 as a grain supply unit is disposed on the side of the grinding type rice milling unit 24. The raw material supply unit 44 includes a funnel-shaped raw material tank 46 into which raw material is charged, a cylindrical raw material supply tube 48 extending downward from the lower end of the raw material tank 46, and an axial core portion of the raw material supply tube 48. And a downward feed screw 50 disposed rotatably. A raw material sensor 56 for detecting the presence or absence of the raw material in the tank is disposed at a predetermined position on the wall surface of the raw material tank 46. Further, a shutter 58 that opens and closes the opening portion is slidably disposed at the opening portion of the lower end portion of the raw material tank 46.

  As shown in FIG. 5, the lower part of the raw material supply cylinder 48 communicates with a supply port 62 that opens laterally at the lower part of the grinding-type rice milling unit 24. Specifically, as shown in FIGS. 6 and 7, the supply port 62 is formed by notching the peripheral wall of the apparatus, and from the lower part of the dehulling cylinder 30 that partitions the grinding rice milling chamber 32 and the milling chamber 34. An inflow cylinder portion 30 </ b> A that extends in the shape of a substantially rectangular cylinder and communicates the inside of the removal cylinder 30 and the supply port 62 is extended. Thus, the raw material is supplied from the lower end portion of the raw material supply cylinder 48 to the lower portion of the grinding rice milling chamber 32, and the raw material is prevented from entering the tub chamber 34. An inspection window 52 is provided on the lower side surface of the raw material supply cylinder 48, and the inspection window 52 can be opened and closed by an inspection window lid 54 (see FIG. 7). 5 and 6 are views with the inspection window lid 54 removed.

  The lower feed screw 50 is rotatably supported only in the vicinity of the lower end portion of the shaft 50A, and the upper end portion of the shaft 50A is a free end. Further, the lower end portion of the shaft 50A penetrates the bottom wall portion of the raw material supply cylinder 48, and a driven pulley 60 is fixed to the penetrating end portion. Correspondingly, a driving pulley (not shown) is disposed at a position facing the driven pulley 60 in the lateral direction, and both are connected to each other by a belt. Accordingly, when the lower feed screw drive motor connected to the operation panel (not shown) is driven, the lower feed screw 50 rotates about its axis via the drive pulley and the driven pulley 60. The downward feed screw drive motor may be the same motor as the grinding roll drive motor. Further, a frustum-shaped bottom plate 64 is fixed to the shaft 50 </ b> A of the lower feed screw 50 at a position facing the supply port 62, so that the raw material fed by the lower feed screw 50 can be effectively fed into the supply port 62. It comes to send to.

  As described above, the raw material supply unit 44 continuously supplies the raw material in the raw material supply cylinder 48 from the supply port 62 into the grinding rice milling chamber 32 of the grinding-type rice milling processing unit 24 as the lower feed screw 50 rotates. It has become. In the grinding-type rice milling unit 24, when the raw material supplied from the lower part of the grinding-type rice milling chamber 32 comes into contact with the grinding-type rice milling roll 28, this raw material is rotated in the grinding-milling rice mill 32 by the rotation of the grinding-type rice milling roll 28. Is rotated in the circumferential direction and is guided by a not-shown multiple helix provided on the inner surface of the removal cylinder 30 so as to rise upward from below. In this grinding type rice milling unit 24, grinding rice milling removes (a part of) the soot layer from the surface of the raw material by repeating contact with the grinding type rice milling roll 28 (grinding stone) while the raw material rises upward from below. Processing is to be performed.

  Accordingly, when the raw material in the raw material supply cylinder 48 is reduced and the conveying force of the downward feed screw 50 does not act on the raw material, there is no action of extruding the raw material toward the grinding-type rice mill roll 28 (raw material flow). The raw material is not supplied to the rice milling chamber 32, and the raw material remains (residual grains are generated) in the lower portion of the raw material supply cylinder 48, the supply port 62, and the lower portion of the grinding rice milling chamber 32. The raw material supply unit 44 is connected to a residual particle removing device 120 for carrying the residual particles to the downstream process, which will be described later.

  In addition, a friction-type rice milling processing unit 68 is disposed in the middle part of the rigid rice milling apparatus 10. The friction-type rice milling processing unit 68 is disposed in a fixed state on the outer peripheral side of the friction-type rice milling roll 70 and the friction-type rice milling roll 70 fixed to the middle part of the rotary spindle 12 (directly below the cerealing roll 22). It includes a removal cylinder 72 formed in a polygonal shape by a punched perforated plate, and a cylindrical wall 73 arranged in a fixed state on the outer peripheral side of the removal cylinder 72.

  The upper and lower ends of the removal cylinder 72 and the cylindrical wall 73 are joined to the upper support plate 42 and an intermediate support plate 82 disposed at an intermediate portion in the apparatus height direction. A friction milling chamber 74 is formed between the outer peripheral surface and the dehulling cylinder 72, and a hull chamber 76 is formed between the outer peripheral side of the dehulling cylinder 72 and the cylindrical wall 73. In the friction-type rice milling unit 68, the cocoon layer (rice flour) generated when the friction-type rice mill 70 is rotated by the friction-type rice mill roll 70 rotating in the friction-milling chamber 74 is transferred to the cocoon chamber 76 via the demolding cylinder 72. It is supposed to be discharged.

  A discharge processing unit 78 as a discharge unit is provided below the friction-type rice milling unit 68 described above. The discharge processing unit 78 includes a bottomed cylindrical discharge case 80. An upper end portion of the discharge case 80 is fixed to an intermediate portion support plate 82 disposed at an intermediate portion in the apparatus height direction. In the discharge case 80, a discharge disc 84 fixed to the rotary main shaft 12 and rotating integrally with the rotary main shaft 12 is accommodated. The discharge board 84 includes a dish-shaped large-diameter portion 84A disposed in the vicinity of the bottom of the discharge case 80, and a cylindrical main body portion 84B that extends integrally and upward from the upper end portion of the large-diameter portion 84A. , Including.

  A dish-like on-off valve 86 for opening and closing the lower end opening of the friction rice milling chamber 74 is supported on the main body portion 84B of the discharge board 84 so as to be movable up and down. The on-off valve 86 adjusts the rice milling (friction) resistance according to its vertical position. Note that a distal end portion of a support arm (not shown) supported so as to be swingable around a fulcrum is attached to the base portion 86A of the on-off valve 86 so as to be relatively rotatable. At the base end portion of the support arm, a rice milling resistance adjusting spring and a rack and pinion type drive mechanism are disposed, and the on-off valve 86 is moved up and down via the support arm in accordance with the drive amount of the motor. is there. Further, one end of the discharge case 80 is connected to an upper end portion of a discharge rod 88 that is inclined like a slide. Thereby, the rice discharged into the discharge case 80 is discharged to the outside of the apparatus through the discharge bar 88 by the rotational force of the discharge board 84.

  In addition, one end of a dehulling duct 90 extending in the horizontal direction is connected to the cocoon chamber 76 of the above-described friction-type rice milling unit 68. Further, one end portion of a dehulling branching duct 92 branched from the dehulling duct 90 is connected to the hull chamber 34 of the grinding type rice milling processing unit 24. Further, a removal suction air blocking device 94 is disposed between the other end of the removal duct 90 and a branch pipe branched from a suction concentration pipe (not shown).

  The removal suction air blocking device 94 includes a connection duct 96 interposed between the other end of the removal duct 90 and the tip of the branch pipe, and one end side (removal) of the connection duct 96. A suction blocking plate 98 disposed at the other end portion of the rod duct 90 and supported so as to be slidable in the vertical direction, and a suction blocking plate fixed to the lower end portion of the suction blocking plate 98 and operated. A drive device (air cylinder) 100 that slides 98 up and down, and a secondary air intake 102 formed on the lower surface on the other end side of the connection duct 96 and is slidably supported in the horizontal direction. A secondary air shielding plate 104 and a driving device (air cylinder) 106 that is fixed to the outer end of the secondary air shielding plate 104 and slides the secondary air shielding plate 104 left and right by operating. Nde is configured.

  Note that the sliding direction for opening and closing the suction blocking plate 98 and the secondary air blocking plate 104 is appropriately changed depending on the installation location of the vertical rice milling device 10 and the mounting direction of the connection duct 96. The shape and dimensions of the secondary air intake 102 are the same as when the suction shut-off plate 98 is open and the secondary air shut-off plate 104 is closed, and when the suction shut-off plate 98 is closed and the secondary air shut-off plate 104 is In the open state, conditions such as air volume and pressure on the rear end side (branch pipe side) of the connection duct 96 are determined to be substantially equal.

  Further, as shown in FIG. 8, a cerealing device 110 is erected at a position adjacent to the vertical rice milling device 10. In the whipping device 110, an inlet 112 is disposed at the lower end, and rice grains discharged from the discharge basket 88 are input from the inlet 112. A cerealing means such as a bucket conveyor is disposed in the cerealing device 110. Further, at the upper end portion, the rice grain is re-introduced into the raw material tank 46, and is discharged to a predetermined position outside the device. The discharge paths 116 are respectively provided. Further, a switching valve 118 for switching the flow direction is disposed at a branch point between the circulation path 114 and the discharge path 116.

(Configuration of residual grain removal equipment)
In the vertical rice milling apparatus 10 described above, grains (brown rice or white rice) remaining in the lower part of the raw material supply cylinder 48 (raw material supply part 44), the supply port 62, and the lower part of the grinding rice milling chamber 32 are ground. A residual grain removing device 120 is provided to be carried out and removed downstream of 24.

  As shown in FIG. 1, the residual particle removing device 120 includes a compressor 122 as a compressor, an air hose 124 as a pipe constituting a flow path that connects a discharge portion of the compressor 122 and the raw material supply cylinder 48, and an air hose 124. A power operation valve 126 as an on-off valve provided in the middle of the power control valve 126 and a control device 128 for controlling the opening and closing of the power operation valve 126 are configured. As shown in FIGS. 6 and 7, the air hose 124 is connected to an air coupler 130 attached with the supply port 62 facing the opposite side of the supply port 62 in the lower part of the raw material supply tube 48. The compressor 122 and the grinding rice milling chamber 32 are communicated with each other via the.

  Further, as shown in FIG. 2 or FIG. 3, an air tank 132 for storing compressed air and a moisture (drain) for removing the compressed air between the compressor 122 and the power operation valve 126 in the air hose 124. A filter 134, a micro mist separator 136, and an air pressure indicator 138 are provided in this order. The compressor 122 also functions as a dryer so as to remove moisture in the compressed air by itself.

  An air hose 140 is branched from the air hose 124 so that compressed air is also supplied to devices (second and subsequent devices) 142 other than the vertical rice milling device 10 which is the first device for the residual grain removing device 120. It has become. That is, in this embodiment, the compressor 122 is shared by the vertical rice milling apparatus 10 and the second and subsequent apparatuses 142. The second and subsequent devices 142 include, for example, a power element such as various air cylinders, an air injection element such as an air nozzle, and the like, and a device that uses compressed air (another vertical rice milling device 10 that shares the above-described concentrated piping). But it is good). By sharing the compressor 122, for example, the rice processing system (plant) including the vertical rice milling apparatus 10 is configured to be compact as a whole.

  Here, when the second and subsequent apparatuses 142 are arranged near the vertical rice milling apparatus 10, the air hose 140 includes an air pressure indicator 138 and a power operation valve 126 in the air hose 124, as shown in FIG. 2. It branches from the branch part J1 between. A power operation valve 144 is provided between the second and subsequent devices 142 and the branch portion J1, and the power operation valve 144 is controlled to be opened and closed by the control device 128.

  On the other hand, when the second and subsequent apparatuses 142 are arranged away from the vertical rice milling apparatus 10, as shown in FIG. 3, the air hose 140 is a branch portion between the air tank 132 and the filter 134 in the air hose 124. Branch from J2. Between the branch portion J2 and the second and subsequent devices 142, a filter 146, a micro mist separator 148, a pneumatic indicator 150, and a power operation valve 144 are provided in this order. The power operation valve 144 is controlled to be opened and closed by the control device 128.

  When there are a plurality of second and subsequent devices, the air hose 140 is further branched according to the position (distance) with respect to each vertical rice milling device 10. In this case, the configuration of FIG. 2 and the configuration of FIG. 3 may be combined.

  The residual particle removing device in the present invention is the residual particle removing device 120 configured to include the compressor 122 in a broad sense. However, since the compressor 122 is shared as described above, It can be understood that the power control valve 126 and the control device 128 are configured.

  When the predetermined condition corresponding to the generation of residual grains at the lower part of the raw material supply cylinder 48 (raw material supply part 44), the supply port 62, and the lower part of the grinding rice milling chamber 32 is established, the control device 128 is operated. Is open intermittently. Specifically, when the above conditions are satisfied, the control device 128 opens the power operation valve 126 for only a predetermined time (T1) (outputs an opening signal), and then closes the power operation valve for another predetermined time (T2). (The closing signal is output or the opening signal is turned off when the power control valve is normally mechanically closed by an urging force or the like) The cycle is repeated a set number of times.

  In this embodiment, the predetermined time T1 and the separate predetermined time T2 are each 3 seconds. The number of cycles for opening and closing the power operation valve 126 is appropriately set according to the type of raw material to be processed, operating conditions, and the like. Instead of the control for setting the number of cycles, a time for intermittently opening the power operation valve 126 (elapsed time from the start of the first opening) is set, or a residual grain sensor is provided at the lower part of the grinding rice milling chamber 32. Alternatively, a control method may be used in which, when the residual grain sensor detects that no raw material remains in the lower portion of the grinding rice milling chamber 32, the cycle of intermittently opening the power operation valve 126 is terminated.

  The predetermined condition corresponding to the generation of residual grains in the lower part of the raw material supply cylinder 48 (raw material supply part 44), the supply port 62, and the lower part in the grinding rice milling chamber 32 is as described above. Since the residual grains are generated when the cereal is not supplied, the condition corresponding to the fact that the raw material is not supplied to the grinding milling chamber 32 is set. Specifically, in the present embodiment, during the rice milling process, a predetermined time (for example, T3 described in the section of action) after the raw material sensor 56 detects that the raw material (brown rice or white rice) has disappeared in the raw material tank 46 is lost. ) It is supposed to pass. That is, it is a condition based on the fact that the raw material in the raw material supply cylinder 48 is reduced when a predetermined time has elapsed after the raw material sensor 56 detects “no raw material”, and more directly supplied to the raw material supply cylinder 48. The residual particle removing device 120 is operated by detecting that the raw material is lost.

  Accordingly, the residual particle removing device 120 automatically operates when residual particles are generated, and intermittently blows (injects) compressed air from the raw material supply cylinder 48 toward the supply port 62 as shown in FIG. ) By this compressed air flow, the raw material (residual grains) remaining in the lower part of the grinding rice milling chamber 32 and the lower part of the raw material supply cylinder 48 passes through the grinding rice milling chamber 32 and the cerealing roll receiving unit 36 to the friction-type rice milling processing unit 68. It is the structure carried out.

  Furthermore, the residual grain removing device 120 performs a specific start-up operation (for example, pressing a maintenance button on the operation panel, etc.) as a maintenance mode for the purpose of confirming the operation and discharging the residual grains in maintenance work etc. outside the rice milling process. By this, it operates in conjunction with the operation of the vertical rice milling apparatus 10. Further, the residual grain removing device 120 operates independently by performing a manual operation (for example, pressing a residual grain removing button on the operation panel) regardless of whether it is in the rice milling process or not. It is like that.

  On the other hand, the compressor 122 continues to operate during a period in which the power operation valve 126 is intermittently opened by the control device 128 or another control device. The compressor 122 operates as appropriate when the pressure of the air hose 124 (air tank 132) becomes lower than the set value, and keeps the pressure of the air hose 124 at the set value.

  Further, the control device 128 appropriately opens and closes the power operation valve 144 in response to a request from the second and subsequent devices 142. The control device 128 may be provided as a dedicated control circuit for the residual grain removing device 120, for example, and the overall operation of the vertical rice milling device 10 (opening / closing of the shutter 58, switching of the switching valve 118 of the cerealing device 110, etc.) ) May be incorporated into a control circuit for controlling the above.

  Next, the operation and effect of this embodiment will be described.

  By operating the operation panel, various drive motors (not shown) are driven. Thereby, in the rotation main shaft 12, a driving force is transmitted via the driven pulley 18, and the rotation main shaft 12 is rotated around the axis. For this reason, the cerealing roll 22, the friction-type rice milling roll 70, and the discharge plate 84 that are integral with the rotary spindle 12 are rotated in the same direction as the rotary spindle 12. In the grinding-type rice mill roll 28, the driving force is transmitted through the driven pulley 40 and the rotary cylinder 26, and the grinding rice mill roll 28 is rotated about its axis. Further, in the downward feed screw 50, the driving force is transmitted through the driven pulley 60 and rotated about its axis.

  In addition, the removal suction air blocking device 94 is opened. That is, the suction blocking plate 98 is held in the open position and the secondary air blocking plate 104 is held in the closed state. As a result, the passage of the removal duct 90 is opened, and the suction force by the suction means (not shown) is applied to the trapezoidal chambers 34 and 76 via the concentrated pipe, branch pipe, connection duct 96, removal pipe 90, and removal branch duct. (A state where the removal suction air can pass). Further, the secondary air inlet 102 is closed.

  In this state, the raw material (brown rice) is put into the raw material tank 46. The charged raw material flows down into the raw material supply cylinder 48 and is conveyed downward at a predetermined conveying speed by the lower feed screw 50. When the raw material is conveyed to the lower end portion of the lower feed screw 50, the raw material is supplied from the supply port 62 to the lower end portion of the grinding rice mill 32 by the rotational force of the bottom plate 64. That is, the downstream raw material is pushed into the grinding rice milling chamber 32 by the upstream raw material to which the conveying force of the lower feed screw 50 and the bottom plate 64 acts, and comes into contact with the grinding-type rice milling roll 28. Then, the raw material is ground and polished by the grinding-type rice milling roll 28 in this process while taking the form of an ascending-type rice mill in which the raw material is pushed upward from below by the rotational force of the grinding-type rice milling roll 28.

  The semi-polished rice after the grinding rice treatment is flowed down into the mortar-shaped cerealing roll receiving portion 36 formed in the rotary cylinder 26 and conveyed to the axially lower side by the cerealing roll 22, and then the friction rice milling chamber. 74 is sent into. In the friction milling chamber 74, the semi-polished mills rub against each other by rotating the friction-type milling roll 70, and the final milling process is performed by the frictional force.

  White rice as a product obtained by the friction polishing process passes through the on-off valve 86 and is dropped onto the discharge plate 84 that rotates in the discharge case 80. Then, it is discharged from the discharge basket 88 to the outside of the apparatus by the rotational force of the discharge board 84.

  The soot generated in the above rice milling process is discharged from the dedusting duct 90 to the outside of the apparatus. That is, the wrinkles generated during the grinding-type rice milling process are discharged from the dehulling cylinder 30 to the hull chamber 34 and then sucked into the dehulling duct 90 through the dehulling branch duct 92. On the other hand, the cocoon generated during the friction-type rice milling process is discharged from the culling cylinder 72 to the cocoon chamber 76 and then directly sucked into the culling duct 90. Then, in a state where both the soot are joined, the suction duct 90 is sucked into the central pipe through the branch pipe and discharged to the outside of the apparatus.

  At the end of the rice milling process, the solid rice milling apparatus 10 is operated in the following manner.

  First, as shown in FIG. 9, when the raw material in the raw material tank 46 runs out, the state is detected by the raw material sensor 56, and the shutter 58 is closed after a predetermined time (T3) has elapsed. Note that when the raw material in the raw material tank 46 runs out and there is no brown rice to be wrapped on the cerealing roll 22, the pressure of the downward rice based on the conveying force of the cerealing roll 22 disappears, so the on-off valve 86 is a rice milling resistance adjusting spring. And the gap at the lower end of the friction rice milling chamber 74 disappears. Therefore, the rice in the friction rice mill 74 is not discharged, and is filled with the white rice R and the brown rice Q mixed. Simultaneously with the closing operation of the shutter 58, the switching valve 118 of the cerealing device 110 is switched to the circulation path 114 side. As a result, the polished rice P after the milling process is reintroduced into the raw material tank 46 and stored in the raw material tank 46.

  Next, the control device 128 opens the power operation valve 126 intermittently for the set number of cycles. Thereby, compressed air is fed from the lower part of the raw material supply cylinder 48 (the flow is indicated by an arrow A), and remains in the lower part of the raw material supply cylinder 48, the supply port 62, and the grinding rice milling chamber 32 by this compressed air flow. The remaining grains (brown rice) Q are fed into the friction rice mill 74 (the flow is indicated by arrow B). In this case, the resistance value during the first main operation is maintained as it is.

  Next, as shown in FIG. 10, after a predetermined time (T4) elapses, the shutter 58 is opened, and the white rice P stored in the raw material tank 46 is caused to flow into the apparatus to perform normal rice milling ( The flow is indicated by arrow C). As a result, the remaining rice Q (brown rice) transported from the grinding rice mill 32 to the friction rice mill 74 is friction-milled while being pushed out with the white rice P returned to the raw material tank 46.

  Next, after a predetermined time (T5) has elapsed, the switching valve 118 of the cerealing device 110 is switched from the circulation path 114 side to the discharge path 116 side. It should be noted that the time required until the brown rice Q in the friction rice milling chamber 74 is frictionally polished to become white rice by the extrusion of the white rice P stored in the raw material tank 46 is T5. This is the shortest course (time) for finishing rice milling. If T5 is longer than that, the same rice circulates through the vertical rice milling apparatus 10 many times. However, how much T5 is set is appropriately changed according to the user's idea and the purpose of the product.

  Next, as shown in FIG. 11, when the raw material sensor 56 detects that the white rice in the raw material tank 46 has disappeared, the shutter 58 is closed after a predetermined time (T6) has elapsed, and the brown rice of the next lot is stored. Preparation is ready. At the same time as the shutter 58 is closed, the opening / closing valve 86 is slid downward by the driving force of the motor, and the frictional resistance is released. As a result, the white rice remaining in the friction rice mill 74 is discharged onto the discharge board 84 and then discharged from the discharge basket 88 to the inlet 112 of the cerealing device 110.

  At the same time, the controller 128 opens the power operation valve 126 intermittently for the set number of cycles in the same manner as in FIG. 9 for a predetermined time (T7). Thus, compressed air is supplied from the raw material supply cylinder 48 (the flow is indicated by an arrow D) and remains in the lower part of the raw material supply cylinder 48, the supply port 62, and the grinding rice milling chamber 32 by this compressed air flow. Residual grain S (white rice) is fed into the friction rice mill 74 (the flow is indicated by arrow E) and discharged from the discharge basket 88 to the inlet 112 of the cerealing device 110.

  Next, as shown in FIG. 12, the power operation valve 126 is intermittently opened, that is, the supply of compressed air is stopped, and at the same time, the driving device 100 is driven to close the suction blocking plate 98 to remove the debris duct 90. And the drive device 106 is driven to open the secondary air blocking plate 104 so that the secondary air can be taken in from the secondary air intake 102. When the suction shut-off plate 98 is closed, the suction force of the removal suction air does not reach and the secondary air is sucked from the secondary air intake 102, so that the inside of the removal cylinder 72 of the friction rice mill 74 The white rice T stuck to the peripheral surface freely falls on the discharge board 84 and is discharged from the discharge basket 88 to the inlet 112 of the cerealing device 110 (the flow is indicated by an arrow F). In this way, all residual grains are eliminated. Thereafter, the entire solid rice mill 10 is stopped.

  Here, when the residual grains (brown rice Q shown in FIG. 9, brown rice S shown in FIG. 11) in the raw material supply cylinder 48, the supply port 62, and the grinding rice mill 32 are carried out and removed by compressed air, the control device 128 Since the power operation valve 126 is intermittently opened, the pressure drop of compressed air is suppressed or prevented during the period of carrying out the residual grains, and the residual grain carrying out capacity is maintained. That is, if the power operation valve 126 is kept open as in the prior art during the period of carrying out the residual particles, the pressure of the compressed air decreases and the residual particle carrying capacity decreases, but the power operation valve 126 is intermittently opened. As a result, the compressor 122 operates even during the closing period of the power operation valve 126 (time T2), whereby the pressure of the compressed gas is restored, and the carrying capacity is maintained over the period during which the remaining particles are carried.

  Therefore, in the residue-type rice milling apparatus 10 to which the residual grain removing apparatus 120 or the residual grain removing apparatus 120 or the residual grain removing method according to the present embodiment is applied, the residual grains are supplied with compressed air supplied from the compressor 122 having a small capacity. Can be reliably carried out.

  The compressed air of the compressor 122 is also supplied to the second and subsequent devices 142. As described above, the control device 128 intermittently opens the power operation valve 126 to carry out residual particles. Therefore, the pressure of the compressed gas (upstream of the power operation valve 144) supplied to the second and subsequent devices 142 is also maintained, which adversely affects the operation of the second and subsequent devices 142. It is prevented.

  Thus, in the residual grain removing apparatus 120, the vertical rice milling apparatus 10, and the residual grain removing method according to the present embodiment, the raw material supply cylinder 48 and the supply port 62 are provided without increasing the capacity of the compressor 122 and the air tank 132. The residual grains in the grinding and milling chamber 32 can be reliably discharged. Thereby, the installation nest pace as a residual grain removing device, that is, the entire contact portion is small, and the cost is not increased.

  In particular, since the compressor 122 continues to operate over the entire period of carrying out the residual particles, the pressure drop during the opening period (time T1) of the power operation valve 126 is suppressed, and as described above, the power operation valve 126 is closed ( The pressure is reliably restored at time T2). In other words, it is possible to set the time T1 for supplying compressed air and blowing away the remaining grains longer than the time T2 required for pressure recovery. In the present embodiment, the time T1 is set to 3 seconds, which is the same as the time T2, and the pressure is surely returned during the closing period of the power operation valve 126 (time T2). Thereby, the cycle number of intermittent opening of the power operation valve 126, that is, the unloading time of the remaining grains is reduced, and the rice milling efficiency of the milled rice mill 10 (the productivity of white rice) is improved.

  Further, in the vertical rice milling apparatus 10, compressed air is supplied toward the supply port 62 at the lower part of the raw material supply cylinder 48, so that it is stronger than when supplied to the upper part of the raw material supply cylinder 48. A compressed air flow is supplied along the carry-out path of residual grains remaining in the lower part of the raw material supply cylinder 48 or the lower part of the grinding rice milling chamber 32, and this air stream is blown directly on the residual grains, It is effectively carried out downstream of the grinding rice milling chamber 32 (friction type rice milling processing unit 68). In particular, since the shutter 58 closes the upper portion of the raw material supply cylinder 48 during the residual grain unloading period, the compressed air flow is prevented from flowing in a direction other than the residual grain unloading direction (the raw material tank 46 side). The remaining grains are carried out more effectively downstream of the grinding rice milling chamber 32.

  In the above embodiment, an example in which the present invention is applied to a rice milling apparatus targeting rice is shown, but the present invention is not limited to this, and the present invention is applied to, for example, a wheat milling apparatus targeting wheat. May be. Furthermore, in the above-described embodiment, an example in which a plurality of vertical rice milling apparatuses 10 share centralized piping has been described. However, the present invention is not limited to this, and may be applied to a single vertical rice polishing apparatus 10. Needless to say.

  Further, in the above embodiment, the present invention is applied to the solid rice milling apparatus 10 that has both the grinding-type rice milling processing unit 24 and the friction-type rice milling processing unit 68. However, the present invention is not limited to this, and The present invention can be applied to any apparatus that has a cereal chamber that performs cereal processing while raising cereal grains from the top to the bottom and that may cause residual grains. For example, a grinding-type rice milling unit 24 and an ascending-type friction-type rice mill The present invention may be applied to a rice milling apparatus provided with only one of the processing units 68. Moreover, it is also possible to apply the residual grain removing apparatus and the residual grain removing method according to the present invention to the residual grain carrying out of the cerealing apparatus 110.

  Furthermore, in the above-described embodiment, the example in which the time T1 for opening the power operation valve 126 and the time T2 for closing during the period for carrying out the residual particles is set to 3 seconds, respectively, the present invention is not limited to this. The times T1 and T2 may be determined according to the amount of residual grains, the pressure recovery time, etc. For example, the times T1 and T2 may be 2.5 seconds, and the times T1 and T2 may be different times.

  Furthermore, in the above-described embodiment, an example in which the compressor 122 is shared with the second and subsequent apparatuses 142 has been shown. However, the present invention is not limited to this, and the compressor 122 is not limited to the residual grain removing apparatus 120 or the vertical rice milling apparatus 10. A dedicated machine may be used. Further, the compressor 122 is not limited to a configuration that supplies compressed air, and may supply compressed nitrogen, for example.

  In the above-described embodiment, the example in which the air hose 124 is connected to the air coupler 130 attached with the supply port 62 facing the lower portion of the raw material supply cylinder 48 is shown, but the present invention is not limited to this, and the air hose 124 is The residue may be connected to any place where the residue can be carried out downstream of the grinding milling chamber 32. Therefore, for example, the air hose 124 may be connected to an upper portion of the raw material supply cylinder 48 or an air coupler attached to the raw material tank 46.

It is a schematic longitudinal cross-sectional view which shows the whole structure of the solid rice milling apparatus which concerns on embodiment of this invention. It is a block diagram which shows the schematic structural example of the residual grain removal apparatus applied to the solid rice milling apparatus which concerns on embodiment of this invention, and the compressed air system | strain of another apparatus. It is a block diagram which shows another example of schematic structure with the residual grain removal apparatus applied to the solid rice milling apparatus which concerns on embodiment of this invention, and the compressed air system | strain of another apparatus. It is a timing chart which shows operation | movement of the residual grain removal apparatus applied to the solid rice milling apparatus which concerns on embodiment of this invention. It is a perspective view which expands and shows each lower part of the grinding rice mill and the raw material supply cylinder which compressed air is supplied from the residual grain removal apparatus in the rigid rice milling apparatus which concerns on embodiment of this invention. It is a side view which expands and shows each lower part of the grinding rice mill and the raw material supply cylinder which compressed air is supplied from the residual grain removal apparatus in the rigid rice milling apparatus which concerns on embodiment of this invention. It is a top view which expands and shows each lower part of the grinding rice milling chamber and raw material supply cylinder which compressed air is supplied from the residual grain removal apparatus in the rigid rice milling apparatus which concerns on embodiment of this invention. It is a schematic diagram which shows the state by which the cerealing apparatus was installed in parallel by the vertical rice milling apparatus which concerns on embodiment of this invention. It is an operation explanatory view showing an operation control method at the time of the end of rice polishing of the solid rice milling device shown in FIG. Similarly, it is operation | movement explanatory drawing which shows the operation control method at the time of the completion | finish of rice milling of the solid rice polishing machine shown by FIG. Similarly, it is operation | movement explanatory drawing which shows the operation control method at the time of the completion | finish of rice milling of the solid rice polishing machine shown by FIG. Similarly, it is operation | movement explanatory drawing which shows the operation control method at the time of the completion | finish of rice milling of the solid rice polishing machine shown by FIG. It is a perspective view which shows the state which the residual grain produced in the conventional rice milling apparatus.

Explanation of symbols

10 Rice milling machine (milling machine)
24 Grinding-type rice milling unit (grain processing unit)
32 Grinding rice mill (milling room)
44 Raw material supply unit (grain supply unit)
48 Raw material supply cylinder (grain supply part)
120 Residual grain removal device 122 Compressor
124 Air hose (flow path)
126 Power control valve (open / close valve)
128 Controller

Claims (6)

Grain that is applied to a cerealing device that processes cereal while raising the grain supplied from the lower part of the cereal room, and remains in the lower part of the cereal room when the grain is no longer supplied to the cereal room A residual grain removing device for transporting grains to the downstream of the cereal chamber by airflow,
A flow path that communicates the discharge part of the compressor and the lower part of the cereal chamber;
An on-off valve provided in the flow path;
When the grain is no longer supplied to the cereal chamber, a control device that intermittently opens the on-off valve and blows an airflow to the grain remaining in the lower part of the cereal chamber;
A residual grain removing device.   The residual flow removing apparatus according to claim 1, wherein the flow path is branched so as to supply the compressed gas of the compressor to an apparatus different from the grain refiner. A cereal processing unit for processing cereals while raising the grains supplied from the lower part of the cereal room,
A flow path that communicates the discharge part of the compressor and the lower part of the cereal chamber;
An on-off valve provided in the flow path;
When the grain is no longer supplied to the cereal chamber, the open / close valve is opened intermittently, so that the grain remaining in the lower part of the cereal chamber is moved downstream of the cereal chamber by a compressed gas stream. A control device to be carried out,
Grain device with The lower part is communicated with the lower part of the cereal chamber, further comprising a grain supply unit for continuously supplying the grain to the lower part of the cereal room,
The flow path communicates with the lower part of the grain chamber through the lower part of the grain supply unit,
The cereal apparatus of Claim 3 characterized by the above-mentioned.   Applied to a cereal processing device that processes cereal while raising the grain supplied from the lower part of the cereal room, and when the grain is no longer supplied to the cereal room, it remains in the lower part of the cereal room A method for removing residual grains, wherein compressed grains are intermittently blown onto grains and the grains are discharged downstream from the grain chamber. When the grain is no longer supplied to the cereal chamber, a cycle that opens and closes an on-off valve provided between the compressor and the cereal chamber is repeated, and the grain remaining in the lower part of the cereal chamber Intermittently blowing compressed gas,
Continue operating the compressor during a period of repeating the cycle of opening and closing the on-off valve,
The residual grain removing method according to claim 5.

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