JP2010260022A - Grain polishing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remove residual grains from a grain polishing chamber with a simple constitution. <P>SOLUTION: In a vertical type grinding friction grain-polishing apparatus 10, rice grains in a forced supply cylinder 34 are supplied to the lower end of a grinding grain-polishing chamber 52. Thereby, in the grinding grain-polishing chamber 52, rice grains are ground and polished by abrasive grains of a rotated grinding grain-polishing roll 44, at the same time raised along a spiral projection 42B by rotative force of the grinding grain-polishing roll 44, and delivered from the upper end of the grinding grain-polishing chamber 52. Here, when rice grains are not supplied to the end of the grinding grain-polishing chamber 52, once the rotation of the grinding grain-polishing roll 44 stops, by which rice grains are stored at the bottom face of the grinding grain-polishing chamber 52. Thereafter, again the grinding grain-polishing roll 44 is rotated, by which rice grains of the grinding grain-polishing chamber 52 turn in clumps are raised along the spiral projection 42B and delivered from the upper end of the grinding grain-polishing chamber 52, by which rice grains remaining in the grinding grain-polishing chamber 52 can be removed by a simple constitution. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a grain refiner that refines grain supplied to a grain room between a grain mill and a grain roll.

  As the grain milling apparatus, there is one in which a grinding-type rice milling roll is provided inside the milling cylinder, and a grinding rice milling chamber is formed between the milling cylinder and the grinding-type rice milling roll (see, for example, Patent Document 1). ).

  In this grain milling apparatus, a multi-thread is provided on the inner surface of the dehulling cylinder, and grinding milling is performed while the grains in the grinding milling chamber are raised by rotating the grinding rice milling roll.

  By the way, when the grain is no longer supplied to the grinding rice mill, the grain remains in the grinding rice mill. For this reason, by blowing compressed air to the lower part of the grinding rice milling chamber, the grains remaining in the grinding rice milling chamber are discharged from the grinding milling chamber to the upper side and removed.

  However, in this milling apparatus, in order to remove the grains remaining in the grinding milling chamber from the grinding milling chamber, it is necessary to blow compressed air on the lower portion of the grinding milling chamber. For this reason, the configuration is complicated.

JP 2005-305292 A

  In view of the above facts, an object of the present invention is to obtain a grain refiner that can remove grains remaining in a grain refiner from the grain refiner with a simple configuration.

  The cereal apparatus according to claim 1 is arranged in a cylindrical cereal cylinder and the sperm cylinder to form a cereal chamber between the cereal cylinder and rotated. And the cereal roll to which the grain supplied to the cereal chamber is cerealed, and is provided on the inner surface of the cereal cylinder and is inclined upward as it goes in the direction of rotation of the cereal roll, An inclined portion where the grain supplied to the cereal chamber is raised by rotating the roll, and once the cereal roll is not supplied to the cereal chamber, the rotation of the cereal roll is once stopped and again Stop rotation means for rotating the cereal roll.

  The cereal apparatus according to claim 2 is the cereal apparatus according to claim 1, wherein when the cereal of the grain is finished, the stop rotation means once stops the rotation of the cereal roll, and Rotate the cereal roll.

  In the grain refiner according to claim 1, the grain roll is arranged inside the cylindrical grain mill, and the grain chamber is formed between the grain mill and the grain roll. . Furthermore, the inclination part provided in the inner surface of the grain cylinder is inclined upward as it goes to the rotation direction of the grain roll, and the grain supplied to the grain room by rotating the grain roll Is raised while being raised.

  Here, when the grain is not supplied to the cereal chamber, the stop rotating means once stops the rotation of the cereal roll and rotates the cereal roll again.

  For this reason, even when a grain remains in the grain room when the grain is not supplied to the grain room, once the rotation of the grain roll is stopped, the grain descends and the grain is refined. Accumulate at the bottom of the chamber. After that, when the cereal roll is rotated again, the cereal roll is raised by the inclined portion while being turned into a lump by the wind of the cereal roll and pressed against the inner surface of the cereal cylinder. It is discharged to the upper side. Thereby, the grain remaining in the grain room can be removed with a simple configuration.

  In the grain refiner according to claim 2, when the grain refinement ends, the stop rotating means once stops the rotation of the grain roll and rotates the grain roll again. For this reason, when the grain cereal is finished, even when the grain remains in the cereal chamber, the grain can be removed from the cereal chamber.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front cross-sectional view showing a vertical grinding friction pulverization apparatus according to a first embodiment of the present invention. It is front sectional drawing which shows the principal part of the vertical grinding frictional grain refiner which concerns on the 1st Embodiment of this invention. It is a perspective view which shows the grinding pearl of the vertical grinding friction pulverization apparatus which concerns on the 1st Embodiment of this invention. It is front sectional drawing which shows the vertical grinding friction pulverization apparatus which concerns on the 2nd Embodiment of this invention.

[First Embodiment]
FIG. 1 is a front sectional view of a vertical grinding friction pulverizing apparatus 10 according to a first embodiment of the present invention.

  As shown in FIG. 1, a vertical grinding frictional pulverizing apparatus 10 according to the present embodiment includes a rectangular parallelepiped box-shaped case 12. In the case 12, an upper partition frame 14 and a lower The partition frame 16 and the horizontal partition stand 18 are constructed.

  In the case 12, a vertical hollow main shaft 20 having a hollow circular shaft shape is erected. The vertical rotation main shaft 20 is rotatably supported by the vertical fixed cylinder 22, and the vertical fixed cylinder 22 is fixed to the horizontal partition 18. The lower end of the vertical rotation main shaft 20 protrudes below the horizontal partition 18, and a lower passive pulley 24 is fixed to the lower end of the vertical rotation main shaft 20. The lower passive pulley 24 is connected to a main motor (not shown) via a belt (not shown).

  A plurality of blow holes 20 </ b> A are formed in the peripheral wall at the lower part of the vertical rotation main shaft 20, and a blow chamber 26 is formed between the peripheral surface at the lower part of the vertical rotation main shaft 20 and the inner peripheral surface of the vertical fixed cylinder 22. Yes. A blowing cylinder 28 is attached to the vertical fixed cylinder 22 corresponding to the blowing chamber 26, and the blowing cylinder 28 is connected to a blower blower (not shown). A plurality of blast holes 20B are formed in the peripheral wall at the substantially central portion in the axial direction of the vertical rotation main shaft 20, and are blown by the blower blower, and are blown from the blow hole 20A through the blow tube 28 and the blow chamber 26 through the vertical rotation main shaft. The air blown into the inside 20 (hollow part) is ejected from the air outlet 20B.

  As shown in detail in FIG. 2, the upper portion of the vertical rotation main shaft 20 protrudes upward from the case 12, and the upper side of the case 12 has a vertical ascending type as a cerealing device around the vertical rotation main shaft 20. A cylindrical ground grain portion 30 is provided.

  A forced supply unit 32 serving as a supply unit is connected to the grinding and polishing unit 30. The forced supply unit 32 is provided with a bottomed cylindrical forced supply cylinder 34, and a supply screw 36 is provided in the forced supply cylinder 34. The supply screw 36 is provided with a spiral plate-like spiral blade 36A above the vicinity of the lower end, and is provided with an impeller-like pushing blade 36B near the lower end. The lower end of the supply screw 36 protrudes below the bottom wall of the forced supply cylinder 34, and a passive pulley 38 is fixed to the lower end of the supply screw 36. The passive pulley 38 is connected to a supply motor (not shown) via a belt (not shown), and rice grains (brown rice as a raw material) as grains are supplied into the forced supply cylinder 34 from above. When the supply screw 36 is rotated, the rice grains are conveyed in the forced supply cylinder 34 by the rotation of the supply screw 36 and supplied to the grinding and pulverizing unit 30.

  A rice grain sensor 40 as detection means is fixed to the forced supply cylinder 34, and the rice grain sensor 40 detects (senses) rice grains in the forced supply cylinder 34.

  The grinding grain portion 30 is provided with a cylindrical grinding grain cylinder 42 (exfoliation cylinder) as a grain mill shown in detail in FIG. 3, and the upper end of the grinding grain mill 42 is closed, The lower end of the grinding grain cylinder 42 is fixed to the upper wall of the case 12. A number of sharpening holes 42A serving as removal holes are formed in the peripheral wall of the grinding grain 42, and multiple spiral protrusions 42B (inclined portions) are formed on the inner peripheral surface of the grinding grain 42. ) Is provided. The multiple spiral ridges 42B protrude from the inner peripheral surface of the grinding pearl tube 42 and are arranged at equal intervals in the circumferential direction of the grinding sperm tube 42. From the upper edge to the lower edge of the grain cylinder 42, it is inclined in a spiral manner in the upward direction as it goes in the rotational direction of the grinding grain roll 44 described below.

  A cylindrical grinding grain roll 44 as a grain grinding roll is provided in the grinding grain cylinder 42, and a hard granular abrasive grain (grinding stone) as a grinding part is provided on the outer peripheral surface of the grinding grain grinding roll 44. ) Are provided. The inner peripheral portion of the grinding and whipping roll 44 is fixed to the outer periphery of the upper portion of the cylindrical rotating cylinder 46, and the rotating cylinder 46 is rotatable on the inner peripheral surface via the bearing 48 to the following cereal transfer cylinder 62. It is supported. The upper surface of the rotating cylinder 46 is inclined downward as it goes radially inward, and the lower part of the rotating cylinder 46 is inserted into the case 12. An upper passive pulley 50 is fixed to the outer periphery of the lower end of the rotary cylinder 46, and the upper passive pulley 50 is connected to a sub motor (not shown) via a belt (not shown). In addition, a grinding grain chamber 52 as a milling room is formed between the grinding grain cylinder 42 and the grinding grain roll 44.

  The outer periphery of the grinding cereal cylinder 42 is covered with an outer cylinder 54, and the outer cylinder 54 closes the entire outer periphery of the grinding hole 42 </ b> A forming portion of the grinding cereal cylinder 42. A ground removal chamber 56 serving as a removal chamber is formed between the grinding and cereal cylinder 42 and the outer cylinder 54. 80 is in communication.

  A forced supply cylinder 34 of the forced supply unit 32 is connected to the lower end of the grinding cereal cylinder 42, and rice grains supplied from the forced supply unit 32 to the grinding cereal part 30 are connected to the lower end of the grinding cereal chamber 52. Supplied. When rice grains are supplied to the lower end of the grinding grain chamber 52 and the grinding grain roll 44 is rotated integrally with the rotary cylinder 46, the grinding grains 52 use the abrasive grains of the grinding grain roll 44 in the grinding grain chamber 52. The rice grains are ground and ground and polished, and the rice grains are raised along the spiral ridges 42 </ b> B by the rotational force of the grinding and polishing roll 44. As a result, the rice grains that have been ground and polished are sent out from the upper end of the ground and polished grain chamber 52. Further, the air in the grinding grain chamber 52 is sucked by the following suction blower via the grinding hole 42A, the grinding hole 56, the communication pipe 58 and the straw discharge pipe 80 of the grinding grain 42. As a result, the rice flour that has been ground and removed from the rice grain in the grinding and graining chamber 52 is removed from the grinding hole 42A, the grinding chamber 56, the communication pipe 58, and the rice cake. It is discharged through the inside of the pipe 80.

  A cerealing part 60 is provided inside the ground grain part 30.

  The cerealing part 60 is provided with a cylindrical cerealing cylinder 62, which is fixed on the upper partition frame 14 and protrudes upward from the case 12. A cerealing roll 64 is provided in the cerealing cylinder 62, and the cerealing roll 64 is fixed to the vertical rotation main shaft 20 so as to be rotatable integrally with the vertical rotation main shaft 20. Further, one threshing spiral 64 </ b> A that is a spiral ridge is provided on the outer peripheral surface of the cerealing roll 64.

  A cerealing chamber 66 is formed between the cerealing cylinder 62 and the cerealing roll 64, and the rice grains delivered from the upper end of the grinding cereal chamber 52 are introduced into the cerealing chamber 66 from above. . When rice grains flow into the cerealing chamber 66 from above and the cerealing roll 64 is rotated, the rice grains are conveyed downward by the cerealing spiral 64 </ b> A in the cerealing chamber 66. Is sent to the lower side.

  As shown in FIG. 1, a friction cereal part 68 is provided below the cerealing part 60.

  For example, a substantially hexagonal (deformed dodecagonal) cylindrical friction milling cylinder 70 (removal cylinder) is provided in the friction milling section 68, and the friction milling cylinder 70 includes an upper partition frame 14 and a lower partition. It is arranged between the frame 16. In addition, a large number of friction removal holes 70 </ b> A are formed on the peripheral wall of the frictional grain 70.

  In the frictional mill 70, a frictional grain roll 72 is provided. The frictional grain roll 72 is fixed to the vertical rotation main shaft 20 below the cerealing roll 64 and integrated with the vertical rotation main shaft 20. It is made rotatable. On the outer peripheral surface of the frictional grain roll 72, a plurality of long rectangular columnar parallel protrusions 72A (three in this embodiment) are provided, and each of the plurality of parallel protrusions 72A is a frictional grain. While being extended in parallel with the axial direction of the roll 72, it is arrange | positioned at equal intervals in the circumferential direction of the friction grain roll 72.

  A friction milling chamber 74 is formed between the friction milling cylinder 70 and the friction milling roll 72. In the friction milling chamber 74, rice grains fed out from the cerealing chamber 66 to the lower side are formed. Supplied from above. Moreover, the downward conveying force by the cerealing spiral 64 </ b> A of the rotating cerealing roll 64 acts on the rice grains in the friction cereal chamber 74.

  A plurality of circular blast holes 72B are formed on the peripheral wall of the frictional grain roll 72 on the side opposite to the rotational direction of the frictional grain roll 72 of the parallel protrusion 72A. The air ejected from the air is ejected from the air blowing hole 72 </ b> B to the frictional grain chamber 74 through the frictional grain roll 72.

  A cylindrical suction cylinder 76 is provided on the entire circumference of the frictional grain cylinder 70. The suction cylinder 76 closes the entire outer periphery of the friction milling cylinder 70 together with the upper partition frame 14 and the lower partition frame 16, and a friction removal chamber 78 is provided between the friction milling cylinder 70 and the suction cylinder 76. Is formed. A soot discharge pipe 80 is connected to the suction cylinder 76, and the friction removal chamber 78 is connected to a suction blower (not shown) through the inside of the soot discharge pipe 80.

  When the rice grains are supplied to the friction cereal chamber 74 from above and the friction cereal roll 72 is rotated, the rice grains are agitated in the friction cereal chamber 74 by the parallel protrusions 72A of the friction cereal roll 72. And is rubbed. In addition, the air jetted from the blow hole 72 </ b> B of the friction flour roll 72 to the friction flour milling chamber 74 passes through the friction removal hole 70 </ b> A, the friction removal chamber 78, and the inside of the straw discharge pipe 80 of the friction flour mill 70. Then, the rice flour that has been suctioned by the suction blower and frictionally refined in the frictional brewing chamber 74 and removed from the rice grain becomes the friction removal hole 70 </ b> A and the frictional removal chamber 78 of the frictional grain 70. And discharged through the soot discharge pipe 80.

  An opening / closing valve 82 is provided below the frictional grain roll 72, and the longitudinally rotating main shaft 20 is rotatably inserted into the opening / closing valve 82. The on-off valve 82 is movable in the vertical direction along the longitudinal rotation main shaft 20, and the on-off valve 82 is capable of opening and closing the lower end of the friction cereal chamber 74.

  The on-off valve 82 is supported at one end of the support arm 84 so as to be relatively rotatable and relatively slidable, and a middle portion in the longitudinal direction of the support arm 84 is rotatably supported by the support base 92 described below. The other end of the support arm 84 is connected to an adjustment motor 88 via a tension coil spring 86, and the biasing force of the tension coil spring 86 is applied to the on-off valve 82 via the support arm 84. Closes the lower end of the friction brewing chamber 74. Further, by driving the adjustment motor 88, the urging force that the tension coil spring 86 applies to the on-off valve 82 via the support arm 84 is adjusted.

  Thereby, the resistance (friction cereal pressure) for friction cereal is given to the rice grains in the friction cereal chamber 74 by the on-off valve 82. Further, the rice grains in the friction brewing chamber 74 press the open / close valve 82 downward, and the open / close valve 82 is moved downward, whereby the pressing force of the rice grains in the friction brewing chamber 74 to the open / close valve 82 is increased. The lower end of the friction brewing chamber 74 is opened with the corresponding opening. For this reason, the rice grain (white rice) for which frictional cereal has been finished falls from the lower end of the frictional cereal chamber 74.

  A funnel-shaped discharge disc 90 is fixed to the vertical rotation main shaft 20 below the on-off valve 82, and the discharge disc 90 can rotate integrally with the vertical rotation main shaft 20. The discharge board 90 is disposed in a bottomed cylindrical support base 92, and the vertical rotation main shaft 20 is rotatably inserted into the support base 92. The upper end of the support base 92 is fixed to the lower side of the lower partition frame 16, and the lower end of the support base 92 is formed integrally with the vertical fixing cylinder 22. The support table 92 is disposed below the lower end of the friction brewing chamber 74, and the rice grains falling from the lower end of the friction mashing chamber 74 fall on the discharge plate 90 in the support table 92. A discharge basket 94 is connected to the side wall of the support base 92, and the rice grains dropped on the discharge board 90 are discharged from the discharge basket 94 to the outside of the case 12 by the rotated discharge board 90.

  The main motor, the supply motor, the sub motor, the blower blower, and the suction blower are electrically connected to a control device 96 as a stop rotation means. Under the control of the control device 96, the main motor, the supply motor, the sub motor, The blower and suction blower can be driven and stopped. An operation unit 98 is connected to the control device 96. In the operation unit 98, operation and stop operation of the cereal processing of the vertical grinding friction pulverization apparatus 10, maintenance of the vertical grinding friction pulverization apparatus 10, and the like. The mode selection operation is enabled.

  When the operation of the grain processing of the vertical grinding friction milling apparatus 10 is performed, the main motor, the supply motor, the sub motor, the blower blower, and the suction blower are driven by the control of the controller 96. When the cereal processing stop operation of the vertical grinding friction pulverization apparatus 10 is performed, and when the maintenance mode selection operation of the vertical grinding friction pulverization apparatus 10 is performed, a timer is controlled by the control of the control device 96. After a predetermined time (for example, 1 minute) based on the measurement, the main motor, the supply motor, the sub motor, the blower blower, and the suction blower are stopped.

  The rice grain sensor 40 is electrically connected to the control device 96, and when the rice grain sensor 40 no longer detects the rice grains in the forced supply cylinder 34 (when the rice grains are no longer supplied to the ground grain portion 30). Under the control of the control device 96, the main motor, the supply motor, the sub motor, the blower blower, and the suction blower are stopped after a predetermined time (for example, 1 minute) based on the timer measurement.

  When the cereal processing stop operation of the vertical grinding friction pulverization apparatus 10 is performed, when the maintenance mode selection operation of the vertical grinding friction pulverization apparatus 10 is performed, and when the rice grain sensor 40 is in the forced supply cylinder 34 When the rice grains are no longer detected, that is, when the secondary motor is stopped after a predetermined time, the secondary motor is controlled after a specific time (slightly longer than the predetermined time) based on the timer measurement under the control of the control device 96. It is driven for a specified time. As a result, immediately after the sub motor is stopped, the sub motor is driven for a specified time.

  An adjustment motor 88 is electrically connected to the control device 96, and when an adjustment operation is performed in the operation unit 98, the adjustment motor 88 is driven by the control of the control device 96, whereby a tension coil spring. The urging force (friction flour pressure) that 86 gives to the on-off valve 82 via the support arm 84 is adjusted.

  Next, the operation of the present embodiment will be described.

  In the vertical grinding friction pulverizing apparatus 10, when the operation of the pulverization processing is performed in the operation unit 98, the main motor, the supply motor, the sub motor, the blower blower, and the suction blower are driven by the control of the control device 96. The For this reason, the main motor rotates the longitudinally rotating main shaft 20 via the belt and the lower passive pulley 24, and the cerealing roll 64, the friction pulverizing roll 72, and the discharge disc 90 are rotated. Further, the supply motor rotates the supply screw 36 through the belt and the passive pulley 38, and the auxiliary motor rotates the grinding and whipping roll 44 through the belt, the upper passive pulley 50 and the rotating cylinder 46. Thereby, the operation | movement of the grain processing of the vertical grinding friction grain refiner 10 is started.

  When the rice grains are supplied into the forced supply cylinder 34, the rice grains are conveyed through the forced supply cylinder 34 by the rotation of the supply screw 36 and supplied to the lower end of the grinding brewing chamber 52. As a result, in the grinding grain chamber 52, the rice grains are ground and ground by the abrasive grains of the rotating grinding grain roll 44, and the rice grains are turned into the spiral ridges 42B by the rotational force of the grinding grain roll 44. The rice grains that have been ground and polished are sent out from the upper end of the grinding and mashing chamber 52 by being lifted along.

  Further, the air in the grinding / milling chamber 52 is sucked by the suction blower via the grinding / removal hole 42 </ b> A, the grinding / removal chamber 56, the communication pipe 58 and the straw discharge pipe 80 of the grinding / milling cylinder 42. As a result, the rice flour that has been ground and removed from the rice grains in the grinding and cereal chamber 52 is removed from the grinding hole 42A, the grinding chamber 56, the communication pipe 58, and the cocoon discharge. It is discharged through the inside of the pipe 80.

  The rice grains delivered from the upper end of the grinding and brewing chamber 52 flow into the cerealing chamber 66 from above. Thereby, the rice grain is conveyed downward by the cerealing spiral 64 </ b> A of the cerealing roll 64 rotated in the cerealing chamber 66, and is sent out from the cerealing chamber 66 downward.

  The rice grains fed downward from the cerealing room 66 are supplied to the frictional graining room 74 from above. As a result, the rice grains are agitated and pulverized in the friction pulverization chamber 74 by the parallel protrusions 72 </ b> A of the rotating friction pulverization roll 72.

  Further, the air is blown by the blower blower, and the inside of the blow cylinder 28, the blow chamber 26, the blow hole 20 </ b> A of the vertical rotation main shaft 20, the vertical rotation main shaft 20, the jet port 20 </ b> B of the vertical rotation main shaft 20, and the friction cereal roll 72. Air blown from the blast hole 72 </ b> B of the friction grain roll 72 to the friction grain chamber 74 is sucked through the friction removal hole 70 </ b> A, the friction removal room 78, and the inside of the straw discharge pipe 80 of the friction grain barrel 70. Suctioned by a blower. As a result, the rice flour that has been frictionally refined and removed from the rice grains in the friction cereal chamber 74 passes through the friction removal hole 70 </ b> A, the friction removal chamber 78, and the inside of the rice cake discharge pipe 80. And discharged.

  The adjustment motor 88 is driven by the control of the control device 96 when the adjustment operation is performed in the operation unit 98. Thereby, the urging force that the tension coil spring 86 applies to the on-off valve 82 via the support arm 84 is adjusted, and the pressure at which the rice grains are frictionally refined in the friction graining chamber 74 is adjusted.

  The rice grains in the friction brewing chamber 74 are pressed at the opening / closing valve 82 and moved downward, so that the rice grains in the friction mashing chamber 74 are moved at the opening according to the pressing force of the rice grains in the friction mashing chamber 74 to the opening / closing valve 82. The lower end of the grain chamber 74 is opened. As a result, the rice grains that have been subjected to frictional grain fall from the lower end of the frictional grain chamber 74 onto the discharge plate 90 in the support base 92 and are discharged out of the case 12 from the discharge basket 94 by the rotated discharge plate 90. Is done.

  When the cereal processing of the vertical grinding friction pulverizing apparatus 10 is stopped (when the cereal processing of the vertical grinding friction pulverizing apparatus 10 is finished), the maintenance mode selection of the vertical grinding friction pulverizing apparatus 10 is selected. When the operation is performed and when the rice grain sensor 40 no longer detects the rice grains in the forced supply cylinder 34, the control unit 96 controls the main motor, the supply motor, the sub motor after a predetermined time based on the timer measurement. The motor, blower and suction blower are stopped. Thereby, rotation of the vertical rotation main spindle 20, the cereal feeding roll 64, the friction pulverizing roll 72, the discharge disc 90, the supply screw 36, the rotating cylinder 46, and the grinding pulverizing roll 44 is stopped, and the vertical grinding friction pulverizing apparatus. The operation of the 10 grain processing is stopped.

  Further, when the cereal processing stop operation of the vertical grinding friction pulverization apparatus 10 is performed, when the maintenance mode selection operation of the vertical grinding friction pulverization apparatus 10 is performed, and the rice grain sensor 40 is forcedly supplied. When the rice grains are no longer detected, i.e., when the sub motor is stopped after a predetermined time, the control device 96 controls the sub device after a specific time (slightly longer than the predetermined time) based on the timer measurement. The motor is driven for a specified time. As a result, immediately after the sub motor is stopped once and the rotation of the ground corn roll 44 is stopped, the sub motor is driven again for a specified time to rotate the grinding corn roll 44.

  By the way, when the rice grains are no longer supplied from the inside of the forced supply cylinder 34 to the lower end of the grinding grain chamber 52, the pressing force by the rice grains supplied to the lower grain of the grinding grain chamber 52 is applied to the rice grains in the grinding grain chamber 52. No longer works. For this reason, especially when the number of rice grains in the grinding grain chamber 52 decreases, the rice grains in the grinding grain chamber 52 are ground by the rotational wind of the grinding grain roll 44 even when the grinding grain roll 44 continues to rotate. The roll 44 does not continue to rotate while floating around in the air, and is not sent out from the upper end of the grinding cereal chamber 52 even after a long time. As a result, the rice grains remain in the grinding and brewing chamber 52.

  Here, when the cereal processing stop operation of the vertical grinding friction pulverization apparatus 10 is performed, when the maintenance mode selection operation of the vertical grinding friction pulverization apparatus 10 is performed, and the rice grain sensor 40 is forcedly supplied. After a predetermined time from when the rice grains in 34 are no longer detected, at least the supply motor is stopped and the rice grains are no longer supplied from the inside of the forced supply cylinder 34 to the lower end of the grinding grain chamber 52. Immediately after the rotation of the grain roll 44 is stopped, the ground grain roll 44 is rotated again for a specified time.

  In this way, when the rice grains are no longer supplied from the inside of the forced supply cylinder 34 to the lower end of the grinding grain chamber 52, the rotation of the grinding grain roll 44 is temporarily stopped, so that the rotating wind of the grinding grain roll 44 is rotated. The rice grains fall and accumulate on the bottom surface of the grinding cereal chamber 52. For this reason, immediately after that, by rotating the grinding flour roll 44 for a specified time again, even if there are few rice grains in the grinding flour chamber 52, the rotating wind of the grinding flour roll 44 (the centrifugal direction of the grinding flour roll 44). The rice grains in the grinding cereal chamber 52 become a lump and are pushed up against the inner peripheral surface of the grinding cereal cylinder 42 at a stretch along the spiral protrusion 42B. Sent from the top. Thereby, even if it does not use the conventional compressed air, the rice grain remaining in the grinding grain chamber 52 can be removed, and the rice grain remaining in the grinding grain chamber 52 can be efficiently removed with a simple configuration.

  Further, as described above, a small amount of compressed air (fluid) is applied to the lower end of the grinding and brewing chamber 52 when the grinding and polishing roll 44 is rotated again for a specified time immediately after the rotation of the grinding and grinding roll 44 is once stopped. By spraying, the rice grains remaining in the grinding cereal chamber 52 can be reliably removed. For this reason, energy saving can be achieved.

[Second Embodiment]
FIG. 4 is a front sectional view showing a vertical grinding friction pulverizing apparatus 100 according to a second embodiment of the present invention.

  The vertical grinding friction grain refiner 100 according to the present embodiment has substantially the same configuration as that of the first embodiment, but differs in the following points.

  As shown in FIG. 4, in the vertical grinding frictional grain refiner 100 according to the present embodiment, a portion above the upper partition frame 14 of the case 12 is not provided.

  The vertical rotation main shaft 20 in the case 12 is rotatably supported by the horizontal partition 18, and the vertical fixed cylinder 22 in the first embodiment is not fixed to the horizontal partition 18.

  The vertical rotation main shaft 20 is not formed with the blow hole 20A in the first embodiment, and the blow chamber 26 in the first embodiment is not formed around the vertical rotation main shaft 20. . The lower end of the vertical rotation main shaft 20 is rotatably connected to the blowing cylinder 28, and is blown from the lower end through the blowing cylinder 28 into the vertical rotation main shaft 20 (hollow portion). Is ejected from the air outlet 20B of the longitudinally rotating main shaft 20.

  On the upper side and the side of the case 12, a ground grain refiner 30 and a forced supply part 32 are provided. The ground grinding part 30 is not provided with the rotating cylinder 46 and the bearing 48 in the first embodiment.

  The ground grain roll 44 has a cylindrical shape, and a rotating shaft 102 is integrally fixed to the central axis of the ground grain roll 44. The rotating shaft 102 protrudes downward from the ground whipping roll 44, and the upper passive pulley 50 is fixed to the lower end of the rotating shaft 102.

  The sharpening chamber 56 is communicated with the friction stripping chamber 78 via a communication pipe 58, and the air in the grinding grain chamber 52 is fed to the grinding hole 42A of the grinding grain 42 and the sharpening hole. The rice grains are ground and ground in the grinding grain chamber 52 by being sucked by the suction blower through the chamber 56, the communication pipe 58, the friction removal chamber 78, and the straw discharge pipe 80. The powder is discharged through the sharpening hole 42 </ b> A of the ground milling cylinder 42, the sharpening hole 56, the communication pipe 58, the friction removal room 78, and the straw discharge pipe 80.

  The ground mashing unit 30 is provided on the side of the cerealing unit 60, and the upper end of the grinding cereal chamber 52 is communicated with the upper end of the cerealing chamber 66 through the connection pipe 104. As a result, the rice grains delivered from the upper end of the grinding and brewing chamber 52 are discharged to the outside of the grinding and mashing chamber 52 through the connection pipe 104 and flow into the cerealing chamber 66 from above.

  Here, also in this embodiment, the same operations and effects as those in the first embodiment can be obtained.

  In addition, in said 1st Embodiment and 2nd Embodiment, when stop operation of the grain processing of vertical grinding friction milling apparatus 10 and 100 was made, vertical grinding friction milling apparatus 10 and 100 When the maintenance mode selection operation is performed and when the rice grain sensor 40 no longer detects the rice grains in the forced supply cylinder 34, the sub motor is turned on after a predetermined time based on the timer measurement under the control of the control device 96. Immediately after being stopped and the rotation of the grinding flour roll 44 is stopped, the auxiliary motor is driven for a specified time to rotate the grinding flour roll 44. However, the sensing means for sensing the driving of the sub-motor and the rotation of the grinding grain roll 44 (for example, a tachometer that senses the amount of rotation of the grinding grain roll 44, an ammeter that senses the supply current to the sub-motor, A camera or the like that senses the rotation of the grain roll 44 from an image may be electrically connected to the control device 96. In this case, after the sensing means senses that the rotation of the grinding and pulverizing roll 44 has been stopped by stopping the secondary motor (immediately after), the secondary motor is driven for a specified time by the control of the control device 96. The grain roll 44 is rotated.

  Furthermore, in the first embodiment and the second embodiment, the supply motor and the sub motor are provided. However, the supply motor and the sub motor may be configured as a common motor.

  Moreover, in the said 1st Embodiment and 2nd Embodiment, it was set as the structure which integrated the grinding grain part 30 and the friction grain part 68 in the vertical grinding friction graining apparatus 10 and 100, It is good also as a structure made into the apparatus of the grinding grain part 30 independent, and the apparatus of the friction grain part 68 independent.

  Furthermore, in the said 1st Embodiment and 2nd Embodiment, although it was set as the structure which applied this invention to the grinding grain part 30 by which rice grain is refined while raising a grain, refined grain while a rice grain is raised It is good also as a structure which applied this invention to the structure which applied this invention to the friction cereal part and the conveyance part by which rice grain is raised and conveyed.

  Moreover, in the said 1st Embodiment and 2nd Embodiment, although it was set as the structure which polished rice while conveying a grain of rice, as a structure which refines while conveying grain (wheat grains etc.) other than rice grain, Good.

30 Grinding cereal part (graining device)
42 Grinding mill (milling mill)
42B Spiral ridge (inclined part)
44 Grinding grain roll (milling roll)
52 Grinding cereal room (refining room)
96 Control device (stop rotation means)

Claims (2)

A cylindrical cereal cylinder,
A cereal roll in which the grains supplied to the cereal chamber are refined by being rotated inside the cereal cylinder and forming a cereal chamber between the cereal cylinder and being rotated,
It is provided on the inner surface of the cereal cylinder, is inclined upward as it goes in the direction of rotation of the cereal roll, and the grain supplied to the cereal chamber is raised by rotating the cereal roll. An inclined part,
Stop rotation means for once stopping rotation of the cereal roll and rotating the cereal roll again when no grain is supplied to the cereal chamber,
Grain device with   The cereal apparatus according to claim 1, wherein when the cereal of the cereal is finished, the stop rotation means once stops the rotation of the cereal roll and rotates the cereal roll again.

Images