JP2010234173A - Device for removing residual grain on rice hulling roll - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently remove the residual grain on the inner peripheral part of a rice hulling roll. <P>SOLUTION: In the device for removing residual grain on the rice hulling roll, a pair of main and auxiliary rice hulling rolls (3 and 4) are provided in a rice hulling case (2), an on-off door (30) is provided to the surface side part of the rice hulling case (2) and an air nozzle (22) for ejecting air to the back of the on-off door (30) is arranged to the region displaced toward the outer periphery from the roll shafts (3a and 4a) of the rice hulling rolls (3 and 4) at the position opposed to the inner peripheral parts (3f and 4f) of the rice hulling rolls (3 and 4). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a residual grain removing device for a hulling roll.

  An outer casing, an openable / closable door provided on one side of the outer casing, a derolling roll disposed in the outer casing so that the axis is directed to the door body and the interval can be changed, and below the derolling roll In the grain removal device of the deflation roll provided with the sorting section having the arranged sorting air path, an air nozzle that blows toward the wheel of each deflation roll is attached to the inner surface of the door body, and the grain adjustment equipment What blows off from an air nozzle with the air compressor used for this is well-known (patent document 1).

JP 2007-330936 A (pages 10 to 11, FIGS. 15 to 17)

  In the background art, the inner peripheral wall of the detachment roll is fastened to the shaft fixing boss protruding from the outer periphery of the drive shaft with a mounting screw, and air is ejected from the air nozzle toward the shaft portion of the detachment roll. The air that hits the shaft fixing boss of the shaft portion of the detaching roll spreads evenly over the entire circumference, weakening the grain removal force, and causes a problem that the kernel remains in the inner peripheral recess of the detaching roll. Therefore, the present invention is intended to solve such a problem.

  According to the first aspect of the present invention, a pair of hulling rolls (3, 4) is provided in the hulling case (2), and an opening / closing door (30) is provided on the front side portion of the hulling case (2). 30) The air nozzle (22) for ejecting air to the back surface is located at a position facing the inner peripheral portion (3f, 4f) of the hulling roll (3, 4) and the hulling roll (3, 4). It is set as the residual grain removal apparatus of the hulling roll characterized by arrange | positioning in the site | part displaced to the outer peripheral side from the roll axis | shaft (3a, 4a).

  According to a second aspect of the present invention, in the first aspect of the invention, the opening / closing lid (30) is configured such that a hollow portion (30c) is formed inside by a flat front plate (30a) and a back plate (30b). The hull roll air hose (21) for supplying air to the air nozzle (22) is disposed in the hollow portion (30c).

  According to the first aspect of the present invention, the air ejection position of the air nozzle (22) is a portion facing the inner peripheral portion (3f, 4f) on the left and right side surfaces of the hulling roll (3, 4), and the hulling roll (3 , 4) is disposed at a position displaced from the roll shaft (3a, 4a) to the outer peripheral side, so that it is easy to remove the grains remaining on the inner peripheral part (3f, 4f), and the air nozzle (22) The air pressure can be reduced.

  In addition to the above-mentioned effect of the invention of claim 1, the invention of claim 2 comprises a hull roll air hose (21) formed of a front plate (30a) and a back plate (30b) of the door (30). Since it was equipped in the hollow part (30c), while improving the beauty | look, it can prevent that the air hose (21) for a hulling roll interferes with a hulling roll (3, 4).

The front view of a hulling apparatus. The figure explaining the inside of the hulling apparatus seen from the plane. The figure explaining the inside of the hulling apparatus seen from the side. The figure explaining the inside of the hulling apparatus seen from the back surface. The front view of a hulling sorter. The top view of a hulling sorter. Side view of hull sorter The figure explaining the inside of the dredging tank of another Example. The figure explaining the transmission structure and inside of a hulling device. The figure explaining the circuit of the air of a hulling sorter. The figure explaining the circuit of the air of a hulling sorter. The figure explaining the circuit of the air of a hulling sorter. The figure explaining the circuit of the air of a hulling sorter. The block diagram of a grain drying facility and a hulling part.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 5, the swing sorting plate type hulling sorter includes a hulling portion 31, a hulling elevator 32 that cereals grains to a hull tank 41 of the hulling portion 31, A rice-sorting section 33 for wind-selecting the rice that has fallen, a rocking-screen-type mixed rice sorting section 34 that separates and sorts the mixed rice from the rice-style rice sorting section 33 into straw and brown rice, and mixed rice sorting Grain sorting elevator 35 for pulverizing the brown rice selected by the unit 34, grain sorting unit 36 for grain sorting of the brown rice, operation panel S for operating the rice hull sorter, and control unit C built in the operation panel S It has.

  The hulling case 2 of the hulling portion 31 is provided with a hulling roll 1 composed of a pair of left and right main hulling rolls 3 and sub hulling rolls 4. The hulling roll shaft 3a of the main hulling roll 3 and the hulling roll shaft 4a of the auxiliary hulling roll 4 are supported at predetermined positions along the front-rear direction. On the side of the hull case 2, as shown in FIG. 9, a swing arm 24 that rotates in the left-right direction around the horizontal axis is provided, and the swing arm 24 includes the auxiliary hull roll 4 and the hull gap adjusting cylinder. 13, and by the expansion / contraction operation of the hulling gap adjusting cylinder 13, the auxiliary hulling roll 4 is also adjustable in the front-rear direction as the swing arm 24 rotates about the horizontal axis. Thus, the gap between the main hull roll 3 and the sub hull roll 4 is adjusted to be opened and closed. Reference numeral 5 denotes a feeding roll for feeding the basket in the tank tank to the gap between the hulling rolls 1. 6 is an inspection window for visually recognizing the hull roll gap.

  Further, the compressed air is supplied from the air compressor 51 to the air adjusting device 10 and further supplied from the air adjusting device 10 to the hulling gap adjusting cylinder 13 via the hulling gap air hose 13a.

  Further, a hulling motor 16 is disposed on the upper side of the hulling case 2, and as shown in FIG. 4, the pulley 17a, the tension pulley 17b of the hulling motor 16, the pulley 17c of the main hulling roll 3, the auxiliary hulling A transmission belt 18 is wound around the pulley 17e of the roll 4 and the pulley 17f of the feeding roll 5, and the main hull roll 3 and the sub hull roll 4 are configured to rotate in opposite directions.

Next, the residue removal structure of the inner peripheral part of the main hulling roll 3 and the sub hulling roll 4 is demonstrated.
The compressed air of the air conditioner 10 is supplied to the hulling roll air nozzle 22 via the front and back hulling roll air hoses 21, and the inside of the front side and the back side of the main hulling roll 3 and the auxiliary hulling roll 4 Compressed air is ejected toward the peripheral portions 3f and 4f to eliminate residues such as grains and dusts, and is dropped and discharged from the lower part of the hulling case 2 to the sliding rice wind selection unit 33 below. Yes.

  Moreover, the main hull roll 3 and the sub hull roll 4 are attached to the hull roll shafts 3a, 4a, and the roll boss portions 3b, 4b, and the hull rolls attached to the outer peripheral portions of the roll boss portions 3b, 4b. The drum portions 3d and 4d and rubber roll portions 3e and 4e covering the outer periphery of the drum portions 3d and 4d are configured. The inner peripheral roll bosses 3b and 4b are recessed inward, and inner peripheral portions 3f and 4f, which are space portions, are formed inside the drum portions 3d and 4d. The drum parts 3d, 4d and the roll boss parts 3b, 4b are attached and detached with bolts 7.

  When air is ejected to the inner peripheral portion 3f of the main hull roll 3 and the inner peripheral portion 4f on the front side of the sub hull roll 4, as shown in FIG. 1, the air nozzles 22a, 22b for the hull rolls The air ejection position is arranged at a position deviated from the position of the hulling roll shafts 3a, 4a to the outer peripheral side in a front view.

  When air is jetted from the hulling roll air nozzle 22 along the hulling roll shafts 3a and 4a, which are the center of the hulling roll 1, it collides with the ends of the hulling roll shafts 3a and 4a. The air flows evenly in the entire circumferential direction and weakens, so that the residual grain removal action becomes insufficient, and the grains remain on the inner peripheral portion 4f, which causes troubles that it takes time to remove. Further, it is not desirable even in consideration of so-called contamination.

  However, according to the said structure, compressed air is ejected from the air nozzle 22 for a hulling roll toward the one side site | part displaced from the center of the inner peripheral parts 3f and 4f in the main hulling roll 3 and the sub hulling roll 4. Therefore, when the air blown to the roll boss portions 3b, 4b and the disc portions 3c, 4c collides, it flows to the other side of the inner peripheral portions 3f, 4f, and the grains can be efficiently removed from the inner peripheral portions 3f, 4f. it can. In addition, the air pressure can be reduced accordingly.

  Further, when the air nozzles 22c and 22d for the hulling roll are provided on the back side of the main hulling roll 3 and the auxiliary hulling roll 4, the positions of the hulling roll shafts 3a and 4a are deviated from the positions of the hulling roll shafts 3a and 4a to the outer peripheral side. It is placed at the site.

According to the said structure, without removing the main hulling roll 3 and the sub hulling roll 4, the residual grain deposited on the inner peripheral parts 3f and 4f of the front and back both sides of a hulling roll can be removed.
Next, the configuration of the opening / closing door 30 of the hulling case 2 will be described with reference to FIGS. 1 and 2.

  An opening / closing door 30 is provided on the front side of the hulling case 2 so as to be openable / closable about the longitudinal axis, and the opening / closing door 30 is formed as a double structure with a front plate 30a and a back plate 30b, and a cavity 30c is formed inside. A hull roll air hose 21 is disposed in the portion 30c. Moreover, the air nozzle 22 for the hulling roll is provided so as to protrude from the back plate 30b toward the main hulling roll 3 and the sub hulling roll 4 side. Then, as shown in FIG. 9, the front end of the air nozzle 22 is provided with respect to the front side end surfaces of the main hull roll 3 and the sub hull roll 4 in the front view, or slightly inside the hull roll. It is comprised so that it may protrude in the peripheral parts 3f and 4f side.

  According to the said structure, since the hull 21 for a hull roll is mounted in the cavity 30c in the front plate 30a and the back plate 30b of the opening / closing door 30, the aesthetic appearance can be improved, and the hose roll air hose Interference with the main hull roll 3 and the sub hull roll 4 can be prevented.

Next, the residual grain removal process of the hulling part 31 is demonstrated.
An air nozzle 80 for removing dust is disposed in the hull tank 41 of the hulling portion 31 so as to remove residual grains and residual impurities in the hull tank 41, and an air nozzle for removing dust. A grain reduction sensor 43 is provided at a lower position than 80 to detect the reduction of the straw in the straw tank 41 so that the end of the hulling work can be detected. Further, a hulling shutter 44 that is opened and closed by an air cylinder 45 is provided at the bottom of the hull tank 41.

  The process near the end of the hulling operation will be described in detail. When the grain reduction sensor 43 detects the grain reduction in the hull tank 41, the air nozzle 22 for removing dust from the hull tank 41 is commanded by the control unit C. Compressed air is blown out over a predetermined period of time, and swarf and residual grains in the culvert tank 41 are blown off into the pallet case 2 to be removed. Next, the hulling shutter 44 of the hull tank 41 is closed, and the supply of grain to the hulling roll 1 is stopped. Next, the auxiliary hulling roll 3 and the auxiliary hulling roll 4 are rotated while the auxiliary hulling roll 4 is moved, and the roll gap opening and closing operation is repeated a plurality of times, and the air is discharged from the hulling roll air nozzle 22 while shaking the grain. And the grains remaining on the inner peripheral portions 3f and 4f of the main hull roll 3 and the sub hull roll 4 are removed.

  According to this configuration, when finishing the hulling operation of the hulling roll 1, the hulling waste in the hull tank 41 is removed, and then the opening / closing operation of the main hulling roll 3 and the auxiliary hulling roll 4 is repeated several times. Since air is ejected from the air nozzle 22 for the sliding roll to remove the residual grains, the residual grains on the inner peripheral portions 3f and 4f of the main hulling roll 3 and the auxiliary hulling roll 4 can be surely removed quickly. it can.

In addition, it is possible to reliably remove the grains of the straw tank 41 and the dust contaminants remaining on the bottom, and prevent the grain reduction sensor 43 from being erroneously detected.
Next, the embodiment shown in FIG. 10 will be described.

  In addition, a grain color sorter 37, a grain meter 38, and an air gun 39 are provided in the vicinity of the hulling sorter, and the remaining parts of these grains remain in the same manner as the hulling roll air nozzle 22. Air nozzles 82, 83, and 84 for removing grains are arranged to remove residual grains.

  The air nozzles 82, 83, 84 for removing residual grains are configured to send compressed air from the compressor 51 via the main hose 120 and the sub hose 121. The sub hose 21 is provided with a pressure sensor 52, a switching valve 53, and an air cock 54, respectively.

  Thus, when the air pressure of each sub hose 121 is detected by the pressure sensor 52 and a drop below the reference value of the air pressure is detected, the switching valve 53 is operated to the cut side by the air supply stop command of the control unit C, and the compression is performed. Stop air blowing. When the detection value of the pressure sensor 52 recovers to a reference value or more, the switching valve 53 is adjusted to open by the compressed air supply restart command from the control unit C, and the compressed air ejection is restarted.

When the predetermined time has elapsed and the grain removal operation is completed, the air cock 54 is closed and adjusted.
According to the above configuration, the compressed air from the air nozzle 22 for the hulling roll and the air nozzles 82, 83, 84 for removing the grains can be ejected while maintaining the reference pressure, and the removal of the remaining grains is ensured. Can be done.

Next, the embodiment shown in FIG. 11 will be described.
The operation panel 56 is provided with a cleaning ON / OFF switch 57, and a first pressure sensor 52 a is provided on the upper side of the switching valve 53 of the sub hose 121 of the hulling elevator 32, and a second pressure sensor 52 b is provided on the lower side.

  Thus, based on the controller command, it is determined whether or not the detected pressure values of the first pressure sensor 52a and the second pressure sensor 52b are equal to or greater than the reference value. Then, the compressed air is ejected from the air nozzle 82 to perform the cleaning operation.

  If the detected pressure value is less than or equal to the reference value, the subtraction process for the predetermined cleaning time is not started, the switching valve 53 is closed, and the cleaning operation is stopped. Next, the air pressure is detected again by the first pressure sensor 52a and the second pressure sensor 52b after a predetermined time. When the air pressure is equal to or greater than the reference value, a subtraction process of a predetermined cleaning time is started and a cleaning operation is performed. When the cleaning operation is completed, the cleaning ON / OFF switch 57 is turned OFF, and the cleaning operation is completed.

According to the said structure, a grain can be reliably removed, ejecting the compressed air of predetermined pressure from the air nozzle 22 for grain removal.
Next, the roll clearance control configuration of the main hull roll 3 and the sub hull roll 4 of the hull portion 31 will be described with reference to FIG.

  In the hulling apparatus for adjusting the opening and closing of the main hulling roll 3 and the auxiliary hulling roll 4 by the air cylinder 13, the roll gap between the main hulling roll 3 and the auxiliary hulling roll 4 is configured to be adjustable by the air cylinder 13. The operation panel 56 is provided with a buckwheat selection switch 61 for selecting a buckwheat work or a wheat sorting operation, and the roll gap between the main straw roll 3 and the auxiliary straw roll 4 is set according to the buckwheat selection of the buckwheat selection switch 61. It is intended to adjust the setting to the cocoon working state or the wheat working state.

  The main hose 120 to which compressed air is supplied from the compressor 51 is provided with a soot air pressure setting device 62 and a switching valve 63 from the start side to the end side. The first port of the switching valve 63 and one side of the air cylinder 13 are connected by the first main hose 12c, and the second port of the switching valve 63 and the other side of the air cylinder 13 are connected by the second main hose 12d. Yes.

  From the start side to the end side of the first main hose 12c, an air pressure setting device 64 for wheat, a second switching valve 65, a speed control unit (roll closing side) 66a are provided, and a speed control unit is provided in the second main hose 12d. (Roll opening side) 66b is provided.

  Thus, when the soot selection switch 61 selects the soot operation, the soot air pressure setter 62 is set to a high pressure (eg, 0.4 MPa) soot operation state by a control command from a controller (not shown). 63 is switched to the first switching unit 63a, and the first main hose 120c is switched to the air feed state. Therefore, high-pressure air is sent to one side of the air cylinder 13, and the main hulling roll 3 and the sub hulling roll 4 are pressed against each other in the closed adjustment state, and the hulling work is performed.

  In addition, when the wheat work is selected by the buckwheat selection switch 61, the wheat air pressure setting device 64 is set to a low pressure (for example, 0.2PMa) wheat work state, the switching valve 63 is switched to the second switching unit 63b, The second main hose 120d and the main hose 120 communicate with each other and enter an air feeding state, and the first switching hose 120 switches the first main hose 120c to the air return side. Therefore, the low pressure air is sent to the other side of the air cylinder 13, the main hull roll 3 and the sub hull roll 4 are in the open adjustment state, and the wheat sorting operation without pressing the wheat is performed.

  According to the said structure, by selecting a buckling work or a wheat work with the buckwheat selection switch 61, the roll gap | interval of the main straw roll 3 and the auxiliary straw roll 4 can be reliably switched to a straw working state or a wheat work state. Can be carried out smoothly.

  In addition, when the grain sensor (illustration omitted) for grain classification detection is provided in the straw tank 41 of the straw mill part 31 to detect whether the grain is wheat or wheat and the grain sensor detects the straw, the main straw roll The roll gap between the main hull roll 3 and the auxiliary hull roll 4 may be adjusted to be closed when the roll gap between the main hull roll 3 and the sub hull roll 4 is detected.

Next, FIG. 13 will be described.
In a grain drying preparation facility equipped with a grain dryer 72, a rice hull sorter 73, etc., all these grain tanks 71 are provided with air nozzles 22 for hulling rolls for removing residual grains and dust, grains A grain full sensor 42 and a grain reduction sensor 43 are arranged, and compressed air is ejected from the air nozzle 22 for the hulling roll, so that residual grains and dusts can be removed from the grain tank 71. Further, an air knocker 72 is provided at the bottom of the grain tank 71, and compressed air is intermittently sent to the air knocker 72 to strike the tank bottom so that residual grains and dust can be discharged.

  Thus, when the grain reduction sensor 43 detects the grain reduction in the grain tank 71 during the drying hulling operation and the grain is discharged after a predetermined time has passed, the air is commanded by a controller (not shown). Compressed air is intermittently sent to the knocker 72 over a predetermined time, and the bottom of the grain tank 71 is beaten by the air knocker 72 to drop and discharge residual grains and dusts. Next, compressed air can be ejected from the air nozzle 22 for the hulling roll for a predetermined time to remove residual grains and dusts.

  According to the above configuration, at the end of the drying hulling operation, the air knocker 72 and the hulling roll air nozzle 22 can be operated to reliably remove residual grains and dust from the grain tank 71.

Next, another embodiment of the hail tank 41 of the hulling portion 31 will be described with reference to FIG.
A primary sorting net 41a for removing small foreign matters such as sand is obliquely installed at the upper part of the dredging tank 41, and a secondary sorting net 41b for removing relatively large foreign matters is obliquely arranged below the primary sorting net 41a. An openable / closable discharge valve 41c is provided at the lower outlet. The discharge valve 41c is adjusted to open every predetermined time according to a command from a controller (not shown) so as to discharge relatively large impurities to the outside of the machine. Then, the secondarily selected grain is supplied to the lower hulling roll from the grain outlet 41d at the bottom of the tank. When the secondary sorting net 41b is clogged, the grain overflows from the upper part of the secondary sorting net 41b and is supplied to the hulling roll from the grain outlet 41d.

According to the above configuration, the grain sorting function can be easily incorporated into the straw tank 41.
Next, FIG. 14 will be described. Grains dried and prepared by a grain dryer (not shown) are stored in the cooling tanks 76, and the grains in the cooling tanks 76 are sorted by the rice cake via the grain conveying conveyor 77 and the hulling elevator 32. It can be supplied to the tank 41 of the machine. The straw tank 41 is provided with the primary sorting net 41a, the secondary sorting net 41b, a discharge valve 41c, and a grain outlet 41d.

  And the presence or absence detection sensor 79, ... is provided in the lower side part of the cooling tank 76 of the grain conveyance conveyor 77, respectively, and when the presence / absence detection sensor 79, ... detects the absence of grain, a controller (illustrated) (Omitted), the discharge valve 41c of the straw tank 41 is adjusted to open after a predetermined time, and the final grain sent from the cooling tanks 76,.

  According to the above-described configuration, the final grain of the cooling tanks 76,... Contains a lot of impurities, but such grains can be discharged out of the machine, Sorting work can be performed smoothly.

  In this embodiment, the swing-type rice hull sorter has been described. However, the present invention can also be used for a rice hull milling machine that grinds rice cake by milling the rice bran. In particular, it can be used for a rice hull roll of a fee-type rice hull milling machine that grinds the rice hulls brought by an unspecified number of users.

2 Hulling case 3 Main hulling roll 3a Roll shaft 4 Sub hulling roll 4a Roll shaft 12 Hulling roll air hose 22 Hulling roll air nozzle 30 Opening / closing door 30a Front plate 30b Back plate 30c Cavity

Claims (2)

  A pair of hulling rolls (3, 4) is provided in the hulling case (2), an opening / closing door (30) is provided on the front side of the hulling case (2), and air is supplied to the back surface of the opening / closing door (30). The air nozzle (22) to be ejected is located at a position facing the inner peripheral portion (3f, 4f) of the hulling roll (3, 4) and the roll shaft (3a, 4a) of the hulling roll (3, 4) A residual grain removing device for a hulling roll, characterized in that the apparatus is arranged at a position displaced from the outer periphery to the outer peripheral side.   In the invention of claim 1, the opening / closing lid (30) is configured such that a hollow portion (30c) is formed inside by a flat front plate (30a) and a back plate (30b), and the hollow portion (30c) ) Is provided with a hull roll air hose (21) for supplying air to the air nozzle (22).

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