JP4697040B2 - Automatic rice milling mill facility - Google Patents

Description

  The present invention relates to an automatic rice milling facility.

In the automatic rice hull milling facility, after a predetermined time of the start of the hulling roll, or after completion of the initial gap setting control of the hulling roll, when the automatic hulling rice mill is stopped, It is known that the drive of the elevator for the hulling is stopped before the hulling roll (Patent Document 1).
JP-A-11-170444

  In the conventional apparatus, the driving of the hulling elevator is stopped first, and then the driving of the hulling roll is stopped. After the work of the hulling roll is finished, the grains are formed on the inner periphery of the hulling roll. There was a problem of remaining. Therefore, the present invention is intended to solve such a problem.

The invention according to claim 1 is the input hopper (2) for charging the raw material rice cake, the rice hull elevator (6) for mashing the raw material rice cake of the input hopper (2), and the rice hull lifting machine (6). A rice hulling device (7) for crushing the raw material koji, a wind selection device (8) for wind-selecting the crushed rice crushed by the hulling device (7), and a rice kneaded by the wind selection device (8) And a rice milling device (10) for whitening the mixed rice processed by the stone drilling machine (12). A pair of hulling rolls (7c, 7c) is provided, and the stone removal machine (12) discards the sorted stones in the disposal box (52) or returns the remaining grains to the hulling elevator (6). A switching valve (39) for switching between the above and the like is provided, and the lifted elevator (6) supplies the cerealed grains to the rice huller (7). Switching valve for switching whether to supply to the bypass passage for bypassing (50) a (51) is provided, provided the grain presence sensor for detecting the presence or absence of grain for hulling rice processing (SE4),該穀particle presence sensor (SE4 ) Provides a hulling roll first stop means for stopping the hulling device (7) after a predetermined time when it detects no grain, and after the hulling rolls (7c, 7c) of the hulling roll first stop means are stopped. A second hulling roll stop means for restarting and stopping the hulling rolls (7c, 7c) is provided , and when the hulling rolls (7c, 7c) are restarted, the switching valve (51) is on the bypass passage (50) side. An automatic rice milling rice mill that is switched to And

  According to the above configuration, when a fee is charged and the raw material rice hopper (2) is charged with the raw material rice cake and the rice milling operation is started, the raw material rice cake is first supplied with the pair of rice cake rolls (7c) of the rice cake device (7). , 7c) and then polished by the rice milling device (10).

Then, when it is detected by the grain presence / absence sensor (SE4) that there is no grain to be processed by the rice hull milling, the hulling roll first stop means is actuated after a predetermined time and the hulling rolls (7c, 7c). The rotation is stopped, and then the hulling roll second stop means is operated to restart and stop the hulling rolls (7c, 7c). At this time, when the hulling rolls (7c, 7c) are restarted, the switching valve (51) is switched to the bypass path (50) side.

The invention of claim 1 can perform the operation of restarting and stopping the hulling rolls 7c, 7c in a state where the residual grain of the stone punching machine 12 is not supplied to the hulling rolls 7c, 7c. It can be stopped in a state in which the grains remaining in the rice hull rolls (7c, 7c) of the rice hulling device (7) in the rice milling facility are eliminated.

Therefore, in the case of a rice milling rice milling facility in which the unspecified number of users bring their own grains, the residual grain of the previous user is mixed with the processed grain of the next user. You can prevent problems.

An embodiment of the present invention will be described with reference to the drawings.
First, the overall configuration of the automatic rice milling rice facility will be described.
The automatic rice hull milling facility is partitioned by a partition wall 1 in the building H into an operation room Ha side and a machine room Hb side. On the operation room Ha side, a raw material charging hopper 2, an operation panel 3, and a white rice tank 4 are provided, and on the machine room Hb side, a hulling elevator 6, a hulling device 7, a wind selection unit 8, and a stone removing machine 12 are provided. , A rice mill elevator 9, a rice milling device 10, a rice bran processing unit 11, and the like.

  Further, on the operation chamber Ha side, a grain bag holder 16 and an inlet 2a of the raw material charging hopper 2 are respectively arranged toward the machine room Hb, and a supply spiral which is a raw material conveying means is provided at the bottom of the raw material charging hopper 2. 2b is provided. Further, the terminal side of the supply spiral 2b is communicated with the hopper portion 6a of the hulling elevator 6 which is a raw material graining means, and the upper part of the hulling elevator 6 is made to face the storage tank 7a.

  Below the storage tank 7, either the grain that has been crushed by the lifting machine for the rice huller is supplied to the side of the hulling device 7, or the bypass passage 50 side that bypasses the hulling device 7 and communicates with the lifting machine 9 for the rice milling. There is provided a switching valve 51 for switching to.

  The hulling device 7 is provided with a pair of rubber hulling rolls 7c and 7c each having a rubber portion 7e formed around a metal circular drum 7d. 12 is disposed. The pair of hulling rolls 7c, 7c is a known configuration that can be driven to rotate in opposite directions, and the roll gap of the hulling rolls 7c, 7c can be adjusted to open and close by forward / reverse rotation of the roll gap adjusting motor M1.

  The wind separator 8 includes a tang 8b that generates a sorted wind, and a dust exhaust cylinder 8e that discharges the rice husk to the outside of the machine. The stone remover 12 includes a stone removal box 12a, a swing sorting plate 12b provided in an inclined state on the top of the stone removal box 12a, a blower fan 12c provided on the lower portion, and the like. The grain extraction side at the bottom of the swing sorting plate 12b is communicated with a coarse sorter 13 that sorts swarf and the like, and the coarse sorter 13 communicates with a lower hopper 9a of a rice mill lift 9 serving as a sliding rice transfer means. It is set as the structure to which it is carried out, and the grain extraction part 9b of the elevator 9 for rice mills is made to face the brown rice tank 10a of the rice milling apparatus 10. Further, a discharge valve 40 is provided at the upper part of the stone removing machine 12 so that it can be opened and closed by the discharge valve operating means 40a, and a switching valve 39 is provided below the discharge valve 40, so It can be switched so that the remaining rice of the stone removing device 12 can be supplied to either the side or the disposal box 52.

  The rice milling apparatus 10 has a well-known configuration including a brown rice tank 10a, a refined platinum net (not shown) of the milled portion 10b, and a milling roll (not shown). Further, the discharge side of the milling portion 10b communicates with the white rice tank 4 so that the white rice is taken out from the operation chamber Ha side.

  The straw processing device 11 includes a straw blower fan 11a provided below the rice milling apparatus 10, a straw blower cylinder 11c that transports the straw from the straw blower fan 11a to the cyclone 11b, and the straw that has dropped to the bottom of the cyclone 11b. It is comprised by the bag 11g and 11g to accommodate.

  The operation panel 3 of the operation room Ha includes a coin mech (not shown), a raw material insertion enable lamp 20, a coin amount indicator lamp 21, a coin insertion slot 22, a rice cake selection button 23a, whiteness selection buttons 24a, 24b, 24c, And a fee table 25 is provided. The coin mech includes an inserted coin identifying unit (not shown), a coin sensor SE1 that operates each time a coin is inserted, and the like. The operation panel 3 includes a control unit (CPU) 26 that controls the drive of each unit drive motor.

  On the input side of the control unit 26, the selection information of the whiteness selection buttons 24a, 24b, 24c, the detection information of the coin sensor SE1, the hulling device 7 and the wind-selecting device 8 drive motor M2 via the input interface. The detected load current value of the load current sensor SE2, the overload information of the overload current value detection sensor SE3 for detecting the overload of the rice milling rice facility, the switching information of the automatic / manual switch SW1, the straw switch SW2, etc. are input. The

  On the output side of the control unit 26, via an output interface, a drive command for the coin withdrawal actuator 27, an open / close command signal to the roll gap adjustment motor M1, a drive signal to the hulling device / wind selector drive motor M2, A drive signal to the supply spiral drive motor M3, a rice hull lift drive motor M4, a rice mill lift drive motor M5, a rice mill drive motor M6, a control signal to the whiteness adjustment motor M7, and the like are output.

  The raw material charging hopper 2 of the rice milling rice facility is provided with a grain presence / absence sensor SE4 and a rice bran / brown rice discrimination sensor 30 for detecting the presence / absence of grain, and the grain presence / absence sensor SE4 and the rice bran / brown rice discrimination sensor 30 are connected to the control unit. 26 are respectively connected to the input side.

Next, the operation of the rice milling rice facility will be described.
First, the case where the raw material is cocoon will be described. Charge coins and the like are inserted into the insertion slot of the coin mech 22 as the starting means, and then the straw is inserted into the raw material charging hopper 2, and one of the whiteness selection buttons 24a, 24b, and 24c is selected, and the whitening degree is set. Set. On the other hand, the rice bran / brown rice discriminating sensor 30 judges that the grain in the raw material input hopper 2 is rice cake, and the coin sensor SE1 reads the number of coins (for example, 100 yen coins) inserted into the coin mech 22 and operates according to a predetermined calculation formula. Calculate and determine the time.

  Next, the roll gap initial setting control of the hulling rolls 7c, 7c is started, and the initial gap of the hulling rolls 7c, 7c is set. The initial setting of the roll gap is executed as follows, for example. When the roll gap adjustment motor M1 is driven to open and the roll gap of the hull rolls 7c and 7c is opened, and the load current sensor SE2 no longer detects a change in the load current value, the hull rolls 7c and 7c are not in contact with each other. It is determined that the opening adjustment is stopped. Next, the roll gap is adjusted to close, and when the load current sensor SE2 detects an increase in the load current value and determines that the finely contacting the hulling rolls 7c, 7c, the closing adjustment is stopped, and then the roll gap is opened for a predetermined time. Adjustment is made and an initial setting (for example, 0.7 mm) of the roll gap is made.

  When the initial setting of the roll gap is completed, the driving motor is started, and the rice huller 7, the stone remover 12, the rice hull elevator 6, the rice lifting elevator 9, the supply spiral 2a, and the rice mill 10 are sequentially started. Thus, the raw material rice cake introduced into the raw material charging hopper 2 is conveyed to the rice straw elevating machine 6 by the supply spiral 2a, cerealed by the rice cake elevating machine 6 and supplied to the storage tank 7a of the rice hulling device 7. It is fed to the sliding rolls 7c, 7c and is crushed by the already driven pallet rolls 7c, 7c.

  The crushed rice that has been crushed by the cocoon rolls 7c and 7c is supplied downward to the wind sorting device 8 and is selected by the sorting wind generated by the tang rice bran 8b, and the mixed rice of rice bran and brown rice is supplied to the stone remover 12. Is done. Further, the mixed rice supplied to the stone remover 12 is sorted by the swing sorting plate 12b. Therefore, foreign matters such as stones mixed in the mixed rice move to the rocking side of the rocking sorting plate 12b.

  Next, the mixed rice that has been cerealed by the lift 9 for rice milling is supplied to the rice milling apparatus 10, and the rice bran layer on the surface of rice husk and brown rice is peeled off so that the milling degree is set between the milling roll 10b and the milled platinum net 10c. Be polished. Next, the polished white rice is conveyed to the white rice tank 4 and collected on the operation chamber ha side. In addition, the soot generated during the whitening work is conveyed by air to the soot processing device 11 by the soot blower fan 11a, transported through the cyclone 11b in the soot transfer rod 11d by the soot spiral 11e, and passed through the soot discharge sections 11f and 11f. Collected in 11 g of bag.

  When the grain presence / absence sensor SE4 detects that there is no grain, or when the operation time for the fee is about to end, it is determined that the rice milling work is about to end, and the supply helix 5a is first stopped, and it is delayed for a predetermined time. The slidable elevator 6 and the rice milling elevator 9 are stopped, and then the rice huller 7, the wind separator 8 and the stone remover 12 are stopped after a predetermined time, and the rice milling apparatus 10 is stopped after a predetermined time.

  The stone remaining in the stone remover 12 opens the discharge valve and is discarded in the disposal box 52, and the switching valve 39 is switched so that the remaining grain is returned to the hulling elevator 6. Then, the grain is lifted by the hulling elevator 6 and the switching valve 51 is switched to the bypass passage 50 side, and the residual grain of the stone remover 12 passes through the bypass passage 50 and is supplied to the rice mill elevator 9.

  When the set operation time is shorter than the operation time corresponding to the number of coins inserted at the end of the rice milling operation, the coin withdrawal actuator 27 is activated and the change is returned from the return port (not shown). The

  Next, a case where raw material brown rice is supplied will be described. When the brown rice selection button 23b is pressed and the whiteness selection buttons 24a, 24b, and 24c are selected, the roll gaps of the rice hull rolls 7c and 7c are adjusted to be widened, and the brown rice is not subjected to the rice hulling operation. It passes between the rolls 7c and 7c and is supplied to the stone remover 12. Thereafter, the rice milling operation is performed in the same manner as described above through the rice milling elevator 9 and the rice milling apparatus 10 and taken out to the milling tank 4. The stop order of each part of the apparatus after the detection of the absence of grain by the grain presence sensor SE4 or the detection immediately before the end of the operation time for the fee, and the discharging method of the stones remaining in the stone remover 12 and the remaining grains are rice milled rice It is the same as at the time of work.

Next, an embodiment in which the hulling rolls 7c and 7c are stopped will be described.
When the grain presence / absence sensor SE4 detects the absence of grain, or when the end of the operation time is detected and the hulling device 7 is stopped after a predetermined time has elapsed, the hulling device 7 is stopped after being restarted. It is configured as follows. Further, the restart stop after the stop may be repeated a plurality of times.

  According to the above configuration, by repeating the restart after the hulling device 7 is stopped, the hulling rolls 7c and 7c are also stopped after the restarting, and therefore remain inside the drum portion 7d of each of the hulling rolls 7c and 7c. A small amount of grain p falling on the wind sorting device 8 is transported to and processed by a stone remover 12 and a rice mill 10 in the subsequent process. Therefore, the grain remaining inside the drum portion 7d of the hulling rolls 7c, 7c can be discharged while avoiding an increase in cost without adding parts.

  Moreover, instead of the operation of restarting and stopping after the hulling device 7 is stopped, the drums of the hulling rolls 7c and 7c are configured to repeat forward and reverse rotations of the hulling rolls 7c and 7c. While the grain remaining inside the portion 7d can be discharged, the grain remaining above the roll gap k between the hulling rolls 7c, 7c can also be discharged.

  Moreover, after discharging the residual grain of the above-mentioned stone drilling machine 12, after switching the switching valve 51 to the bypass path side, the hulling device 7 may be stopped, restarted, and stopped. . If it does in this way, the operation which restarts and stops the hulling rolls 7c and 7c in the state where the residual grain of the stone punching machine 12 is not supplied to the hulling rolls 7c and 7c, or forward rotation of the hulling rolls 7c and 7c Therefore, it is possible to more reliably prevent grains from remaining inside the drum portion 7d of the hulling rolls 7c and 7c and in the hulling roll gap k.

The grain presence sensor SE4 may be attached to the brown rice tank 10a.
According to the present embodiment, in the case of a rice milling facility that performs grain milling work or rice milling work on grains brought by an unspecified number of users, the previous user's residual grains are processed by the next user. It is possible to prevent problems mixed with grains.

Next, another embodiment of the heel processing apparatus 11 will be described.
As shown in FIG. 13, a switching valve 32 is provided in the middle of the soot blower cylinder 11 c that transports the soot from the soot blower fan 11 a to the cyclone 11 b in the soot processing device 11, and the soot removal cylinder 11 h is provided from this switching valve 32. It branches and the tip of the tub extraction cylinder 11h communicates with the tub extraction portion 11i of the operation chamber Ha. And the switching valve 32 is switched by the switching means 33 so that the soot is taken out to the side of the soot transporting stick 11e or taken out to the side of the soot take-out cylinder 11h.

  Then, the switching means 33 can be switched by a command signal from the control unit 26, and the switching valve 32 is turned on for a predetermined time from the start of the rice milling operation of the rice milling apparatus 10 and for a predetermined time before the completion of the rice milling operation. It is configured so as to be switched only to the transfer rod 11e side and not switched to the rod extraction cylinder 11h side, and to be switched to the rod extraction cylinder 11h side only in an intermediate time zone excluding the time zone.

  Further, when the heel changeover switch SW2 is connected to the input side of the control unit 26 and the heel changeover switch SW2 is pressed for a predetermined short time, the discharge direction of the changeover valve 32 is switched, and the heel changeover switch SW2 is turned on for a predetermined long time. When the button is pressed or pressed a plurality of times within a predetermined time, it can be switched to the side of the barb unloading cylinder 11h for a predetermined time from the start of the rice milling operation and a predetermined time before the completion of the rice milling operation.

  According to the above-described configuration, it is possible to prevent so-called white rice cake mixed with brown rice powder from the operation chamber Ha side, and to extract only the so-called black rice cake for pickles not mixed with white birch from the operation chamber Ha side.

Next, another embodiment of stopping the rice milling apparatus 10 at the end of the rice milling operation will be described.
When the rice milling work is finished, the rice lifter 9 and the rice mill 10 are stopped after a predetermined time so that no grains remain in the rice mill 10. In this embodiment, in response to the selection of the whiteness level by the whiteness selection buttons 24a, 24b, 24c, when the high whiteness is selected, the rice lifter 9 is stopped from the end of the work compared to the low whiteness selection. Until the stop time of the rice milling apparatus 10 is set to be long, and the stop time is delayed.

  According to the above-described configuration, for example, when milling for 5 minutes, the flow of the grain in the rice milling apparatus 10 is poor, and a lot of time is required until the grain is discharged, but by increasing the time to stop, the rice milling apparatus 10 In the case of high whiteness, it is possible to save power by shortening the time until stopping.

  Moreover, you may comprise related with the wind selection apparatus 8 and the rice milling apparatus 10 of the hulling apparatus 7 as follows. A discharge switching valve 42 is provided in the middle of the white rice extraction flow path 41 that communicates the rice milling device 10 and the white rice tank 4, and a discharge flow path 43 is branched from the discharge switching valve 42, and the end side of the discharge flow path 43 Is communicated with the suction part of the Kara 8b of the wind separator 8. Further, by switching the discharge switching valve 42, the removal of the white rice extraction flow path 41 is configured to be on the white rice tank 4 side or switched to the discharge flow path 43 side.

  And the discharge switching means 44 which switches the said discharge switching valve 42 is provided, the discharge switching means 44 is comprised by the command signal of the said control part 26, and it comprises the said discharge switching valve 42 at the time of the completion | finish of work of a rice milling rice plant. It switches to the discharge flow path 43 side, and it is comprised so that the inflow of the discharge flow path 43 may be suction-removed to the red pepper 8b.

  According to the above configuration, the discharge switching valve 42 is switched from the white rice take-out flow path 41 side to the discharge flow path 43 side at the end of the rice milling rice milling operation. The rice husks are discharged out of the machine through the discharge switching valve 42 and the discharge passage 43 and the red rice bran 8b, so that the polished platinum net 10b and the white rice extraction passage 41 of the rice milling apparatus 10 can be cleaned.

Next, the whiteness adjustment configuration of the rice milling apparatus 10 will be described based on FIG.
A milled platinum net (not shown) and a whitening roll (not shown) are arranged in the rice milling box 10d of the rice milling apparatus 10, and the arm part 46a of the compression plate 46 is pivoted on the upper front side of the rice milling box 10d. I support. The compression plate adjusting device 47 that adjusts the pressing force of the compression plate 46 includes a whiteness adjustment shaft 47a that is rotated forward and backward by a whiteness adjustment motor M8, a coil spring 47b that is wound around the whiteness adjustment shaft 47a, A washer 47c fixed to the degree adjusting shaft 47a and abuttingly supporting the front end of the coil spring 47b, a whiteness adjusting body 47d screwed to the whiteness adjusting shaft 47a, and the like. A limit switch type full open detection sensor SE5 for detecting the full open adjustment position of the compression plate 46 and a limit switch type full closure detection sensor SE6 for detecting the full closure adjustment position are provided.

  Further, at the end of the operation of the rice milling apparatus 10, the whiteness adjustment motor M8 is rotated forward and backward by a control command from the control unit 26, and the compression plate 46 is returned to the fully open adjustment position or the fully closed adjustment position. is doing. Then, at the start of the work of the rice milling apparatus 10, the whiteness adjustment motor M8 is rotated forward and backward by the control command of the control unit 26 in relation to the whiteness selection of the whiteness selection buttons 24a, 24b, 24c, and compressed from the reference position. The plate 46 is configured to move and adjust to the set whiteness.

According to the said structure, since the whiteness adjustment of the compression board 46 of the rice milling apparatus 10 is adjusted on the basis of a full open adjustment position or a full closure adjustment position, the precision of whiteness setting can be improved.
Further, in the conventional apparatus, a rotation detection protrusion is provided on the whiteness adjusting shaft, and the whiteness is set while detecting the number of rotation detection protrusions by a proximity sensor. In such a configuration, a deviation occurs in the whiteness setting position due to a malfunction of the proximity sensor, or the deviation increases due to a cumulative error. Further, since the whiteness adjustment is performed in units of one rotation, a slight whiteness difference is given. There was a problem that it was not possible. However, such a problem can be solved by adopting the above configuration.

  Further, in the adjustment control device for the compression plate 46, for example, a pilot lamp (not shown) blinks every whiteness adjustment unit time (or every rotation) when the whiteness adjustment motor M8 is driven for a predetermined time. You may comprise. If comprised in this way, the whiteness adjustment position of the compression board 46 can be known by the frequency | count of blinking of a pilot lamp at the time of a maintenance, and a maintenance becomes easy.

  Further, a whiteness adjustment dial (not shown) may be provided so that the whiteness adjustment unit time is adjusted to be longer or shorter. With this configuration, it is possible to give a slight whiteness difference to the compression plate 46.

  In the adjustment control device for the compression plate 46, the reference position at the start of whiteness adjustment may be, for example, the upper white position, and the whiteness for 8 minutes and the whiteness for 8 minutes may be adjusted from the upper white position. If comprised in this way, the whiteness setting at the time of a rice milling work start can be made quick.

  Moreover, you may comprise as follows. The adjustment control device for the compression plate 46 is configured such that the whiteness of the compression plate 46 can be set to, for example, upper white, standard, 8 minutes, and 5 minutes. Then, an automatic manual changeover switch (not shown) is switched to the manual side, and the whiteness adjustment motor M8 is manually turned on / off from the fully open adjustment position or the fully closed adjustment position, for example, the upper white position. Next, the automatic manual changeover switch is switched to the automatic side, and further, for example, a reset switch (not shown) is turned on to set and store the upper white position. In addition, the whiteness adjustment time from the upper white position to the standard position is set to the time unit “2”, the adjustment time from the standard position to the 8-minute position is set to the time unit “1”, and the adjustment time from the 8-minute position to the 5-minute position. Is set to be adjustable in time unit “3”. With this configuration, by setting the upper white position of the reference adjustment position, other whiteness positions are automatically set, and the whiteness setting can be simplified.

  Further, in the adjustment control device for the compression plate 46, the whiteness of the compression plate 46 can be set to, for example, upper white, standard, 8 minutes, 5 minutes, and an automatic manual changeover switch (not shown) is switched to the manual side. Next, the whiteness adjustment motor M8 is operated by manual ON / OFF operation of the compression plate 46 in the fully open adjustment position or the fully closed adjustment position, for example, to adjust the upper white position. Subsequently, when the automatic manual changeover switch is switched to the automatic side and further, for example, a reset switch (not shown) is turned ON, the upper white position is set and stored. In addition, the adjustment from the upper white position to the standard position, the adjustment from the standard position to the 8-minute position, and the adjustment from the 8-minute position to the 5-minute position, “motor rotation speed” × “number of rotations” of the whiteness adjustment motor M8. You may set so that it can adjust by. With this configuration, by setting the upper white position of the reference adjustment position, other whiteness positions are automatically set, and the whiteness setting can be simplified.

Top view of automatic rice milling facility Process diagram of automatic rice milling facility Perspective view of hulling device, wind sorting device The figure which shows the operation room seen from the front Front view of operation panel The figure which shows a part of the rice milling device seen from the side Block Diagram Perspective view of hulling roll

2 Raw material charging hopper 7 Rice huller 7c Rice hull roll 8 Wind sorting device 10 Rice milling device 12 Stone remover 26 Rice hull roll first stop means 26 Rice hull roll second stop means 39 Switching valve SE4 Grain presence / absence sensor

Claims (1)

An input hopper (2) for charging the raw material rice cake, an elevator (6) for mashing the raw material rice cake of the input hopper (2), and a rice cake for mashing the raw material rice mashed by the elevator (6) A wind device (8) for wind-selecting the rice that has been crushed by the sashing device (7), and a mixed rice of rice and brown rice that has been wind-selected by the wind selection device (8) A stone removing machine (12) for punching and a rice milling device (10) for whitening the mixed rice treated by the stone removing machine (12),
The hulling device (7) includes a pair of hulling rolls (7c, 7c),
The stone remover (12) is provided with a switching valve (39) for switching whether the sorted stone is discarded in the disposal box (52) or the remaining grains are returned to the hulling elevator (6).
A changeover valve (51) for switching whether the cerealed grain is supplied to the hulling device (7) or to the detour passage (50) that bypasses the hulling device (7). )
A grain presence / absence sensor (SE4) for detecting the presence / absence of grains to be processed by rice milling is provided, and when the grain presence / absence sensor (SE4) detects the absence of grains, the rice huller (7) is stopped after a predetermined time. A second hulling roll is provided which is provided with first hulling roll stop means and restarts and stops the hulling rolls (7c, 7c) after the hulling rolls (7c, 7c) of the hulling roll first stopping means are stopped. Provide a stopping means ,
An automatic rice hull milling facility characterized in that the switching valve (51) is switched to the bypass path (50) when the hulling rolls (7c, 7c) are restarted .

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