JP6100092B2 - Rice mill control method - Google Patents

Description

  The present invention relates to a method for controlling a rice mill capable of reducing the degree of milling and leaving the nutrients of koji.

  Since rice bran contains a lot of nutrients, there has been a rice milling machine that can polish rice with a low degree of whitening so that a desired amount of rice bran can be left. As the degree of whitening decreases, the degree of whitening is referred to as, for example, upper white, standard, 7 light, 5 light, 3 light, and 1 light.

In addition, as an example of a conventional rice milling machine, a structure is known in which a resistance plate is arranged so as to block the exit of a milling room for polishing brown rice, and the resistance force for pressing the resistance plate toward the outlet can be adjusted. (See Patent Document 1). In this structure, when the resistance is increased, the degree of whitening is increased, and when the resistance is decreased, the degree of whitening is decreased.
During the operation of the rice mill, the milling chamber is usually filled with brown rice except for the initial stage of rice milling and the stage of finishing rice milling. Then, brown rice is sequentially supplied to the milling chamber, and the milling roll rotates in the milling chamber, so that the brown rice is sequentially sent from the entrance side to the exit side of the milling chamber, and the rice that reaches the exit resists. The resistance plate is pushed in the direction away from the outlet against the force, and the rice falls from the gap formed between the outlet and the resistance plate.

JP 2008-80202 A

  By the way, the rice milling machine has not only the operation start part but also the operation stop part, and the operation stop part may be operated during the rice polishing. In this case, the spinning roll stops while the resistance force is maintained. At this time, since the milled rice chamber is filled with brown rice, a force (opening force) for opening the resistance plate from the brown rice is generated. When the degree of whitening is at a standard level, the resistance is superior to the opening force, so that the exit of the sperm chamber is kept closed. However, if the degree of milling is lower than a certain level, the opening force will be greater than the resistance force, and the resistance plate will be separated from the exit of the semen chamber (a gap is formed between the resistance plate and the exit of the semen chamber), Rice falls naturally from the gap. If the degree of milling is very low, the resistance of the resistor plate is set so that a gap G is formed between the resistor plate and the exit of the milling chamber without brown rice in the milling chamber as shown in FIG. The rice in the semen chamber naturally falls from this gap G, and a void is formed in the sericulture chamber.

  When the operation start part is operated and the operation is resumed in a state where a gap is formed in the milling chamber, the milling roll rotates again, so that brown rice is sequentially sent out toward the exit. However, since the semen chamber is not full, the desired pressure is not generated in the semen chamber. Then, a certain amount of brown rice after the restart of operation will drop from the exit even though it is not sufficiently polished. Accordingly, rice that does not achieve the desired degree of milling for a short time after restarting operation is discharged. This phenomenon becomes more prominent in the case of a rice mill having a structure in which the milling chamber is tilted to lower the exit side.

  The present invention was developed based on the above situation, and its purpose is to prevent the rice from falling naturally from the exit of the milling room when the rice milling machine is stopped during the rice milling operation with a low degree of milling. Is to do.

  The present invention is a rice mill control method comprising a brown rice hopper, a milling device, an operation device, and a control device. The milling device is a cylindrical milling chamber for milled rice that has an inlet for taking in brown rice from the hopper, a milling roll that is rotatably supported in the milling chamber, a rotating device that rotates the milling roll, and an opening that opens and closes the milling chamber. And a resistance device for adjusting a resistance force for pressing the resistance plate toward the outlet. The operating device includes a whitening degree operation unit that sets a whitening degree, an operation start unit, and an operation stop unit. The control device controls each drive of the rotation device and the resistance device based on a signal from the operation device.

  When the control method of the rice milling machine of the present invention receives a stop signal from the operation stop unit during the milling of the rice, the control device stops driving the rotating device and When the device is driven in the direction in which the resistance increases, the exit of the milling chamber is closed, and after receiving the operation start signal from the operation start unit after the closure, the control device drives the resistance device to make the milled rice While returning to the inside resistance force, the driving of the rotating device is resumed. The milled rice is a resistance device that adjusts the resistance to the resistance that leaves the resistance plate away from the exit due to the weight of the brown rice filled in the milling room, or the resistance that creates a gap between the resistance plate and the exit. It is a polished rice that is driven by rotating the rotating device.

  The direction of the penetration direction of a pipe | tube is not ask | required for a cylindrical semen chamber. However, the effect of reducing the amount of rice falling from the exit of the milling room when the operation of the rice milling machine is interrupted during the milling is high when the direction of the milling room is as follows. That is, the sperm chamber is in a case where the outlet side is inclined so as to be lower than the inlet side.

  According to the control method of the rice milling machine of the present invention, when the operation stop unit is operated during the milling of the rice, the milling roll is stopped and the exit of the milling chamber is closed. The situation where rice falls from the exit of the milling room can be avoided. In addition, when the operation start unit is operated after closing, the resistance device is controlled by the resistance force at the time of rice milling before stopping, and the milling roll rotates, so that the milling is resumed at the original degree of milling.

It is explanatory drawing which shows the internal structure about the rice mill of the 1st Example applied to this invention. It is explanatory drawing which shows the state which has closed the exit of the semen chamber. It is a general-view figure which shows an example of an operating device. It is a block diagram which shows the input / output signal with respect to a control apparatus. It is explanatory drawing which shows the state in the rice polishing. It is explanatory drawing which shows the principal part of the internal structure about the rice milling machine of the 2nd Example applied to this invention. It is explanatory drawing which shows the state after stopping rice milling on the way with the conventional rice milling machine for a while.

  As shown in FIGS. 1 and 2, a rice milling machine according to a first embodiment applied to the present invention includes a hopper 1 for introducing brown rice, a milling apparatus 2 for milling rice, a scouring apparatus 3 for sucking rice bran, and a milling apparatus 2. And a control device 5 that controls each drive of the depigmenting device 3, an operation device 4 that gives various signals to the control device 5, and a housing 6 that houses them. In the housing 6, various devices 1 to 5 are attached to a frame (not shown).

In the illustrated example, the hopper 1 is attached so as to open upward at the top of the housing 6. The hopper 1 includes a funnel-shaped hopper main body 11 and a connecting pipe 12 that connects an outlet of the hopper main body 11 and an inlet of the scouring chamber 20.
A brown rice sensor 11a for detecting brown rice is attached to the hopper body 11 at a predetermined height position.
The upper part of the connecting pipe 12 has a similar shape smaller than the hopper body 11 and is arranged so as to cover the lower part of the hopper body 11 from below. Further, except for the upper part of the connecting pipe 12, it has a cylindrical shape extending in the vertical direction. An opening is formed in the side surface of the intermediate height portion of the connecting pipe 12, and a shutter 13 that enters and exits the connecting pipe 12 from the opening is attached around the opening. More specifically, upper and lower shutter guides 14 are attached to the periphery of the opening so as to protrude laterally from the connecting tube 12, and an L-shaped shutter 13 is supported between the upper and lower shutter guides 14. . A shutter shaft 15 for operation is attached to the shutter 13, and a drive mechanism (not shown) for opening and closing the shutter shaft 15 is provided. The drive mechanism is driven based on a command signal from the control device 5 to reciprocate the shutter shaft 15, thereby opening and closing the shutter 13, supplying brown rice from the hopper 1 to the milling device 2, or stopping it. .

  The milling device 2 rotates the milling chamber 20, which is connected to the outlet of the hopper 1 (more specifically, the outlet of the lower end of the connecting pipe 12), the milling roll 21 that is rotatably supported in the milling chamber 20, and the milling roll 21. A rotating device 22, a resistance plate 23 supported to open and close the exit of the milling chamber 20, a resistance device 30 for adjusting the degree of milling of the milled rice, and a discharge chute 24 attached to the exit side of the milling chamber 20.

  The nymph chamber 20 has a cylindrical shape as a whole, and is attached so that the cylinder penetrates in the front-rear direction. More specifically, one end side (front end side) of the cylindrical sperm chamber 20 is inclined and attached so as to be lower than the other end side (rear end side). It is an exit of the semen chamber 20, and an entrance is formed on the upper surface on the rear end side. Further, the milling chamber 20 is accommodated in the cerealing chamber 20a having an inlet leading to the connecting pipe 12 on the upper surface, the support frame 20b protruding forward from the radially outer side of the cerealing chamber 20a, and the radially inner side of the support frame 20b. And a sperm chamber main body 20c. The centers of the cylinders of the milling room main body 20c and the cerealing room 20a coincide with each other.

  The cerealing room 20a has a cylindrical shape with an entrance on the upper surface, and the front end side communicates with the sperm room main body 20c.

  The support frame 20b includes a disk-shaped front frame 20u and a rear frame 20v that are opposed to each other in the front-rear direction, and a connecting rod 20w that connects the front frame 20u and the rear frame 20v in a part in the outer circumferential direction and extends in the front-rear direction. It has. The rear frame 20v is connected to the flange at the front end of the cerealing chamber 20a.

The main body 20c includes a polygonal cylindrical wire mesh 20d, a frame-shaped wire mesh frame 20e that supports the outer periphery of the wire mesh 20d in a reinforcing manner, and a cylindrical rear portion connected to the rear part of the wire mesh frame 20e. A guide 20f, a plate-like cover 20i, an annular outlet member 20h, and a discharge chute 24 that are sequentially arranged on the front side of the wire mesh frame 20e are provided.
The metal mesh frame 20e has a shape in which circular rings arranged at intervals in the front-rear direction are connected in the front-rear direction. The rearmost ring is connected to the rear guide 20f, and the frontmost ring is accommodated in the front frame 20u of the support frame 20b.
Each of the cover 20i and the central plate 24a of the discharge chute 24 is formed with an opening communicating with the inner space of the demetalization wire mesh 20d, and the outlet member 20h is disposed so as to fit inside the openings. In addition, a flange projecting outward at the intermediate portion in the front-rear direction of the outlet member 20h is connected so as to be sandwiched between the cover 20i and the center plate 24a. Therefore, the member located on the front side of the wire mesh 20d, that is, the outlet member 20h constitutes the front part of the semen chamber main body 20c, and the front end opening of the outlet member 20h serves as the outlet of the semen chamber body 20c. Further, a member located on the rear side of the demetalization wire mesh 20d, that is, the rear guide 20f constitutes a rear portion of the semen chamber main body 20c, and a front end opening of the rear guide 20f serves as an inlet of the semen chamber main body 20c, and It is inserted along the inner peripheral surface of the rear frame 20v. The opening diameter of the cover 20 is smaller than the inner diameter of the foremost ring of the wire mesh frame 20e.
The discharge chute 24 includes a center plate 24 a and a pair of holding plates 24 b that protrude forward from the left and right of the center plate 24. The lower part of the central plate 24a is bent so as to protrude forward as it goes downward.

The milling roll 21 is provided with a milling roll 21a accommodated in the milling room 20a and a milling roll body 21b accommodated in the milling room 20, and the grain transmission roll 21a and the milling roll body 21b are connected in a straight line. It is.
The cerealing roll 21a has a screw formed just below the hopper 1 on its outer peripheral surface. The cerealing roll 21a includes a stepped large-diameter portion 21c behind the screw so that the brown rice does not pass between the outer peripheral surface of the large-diameter portion 21c and the inner peripheral surface of the cerealing chamber 20a. is there. Furthermore, the cerealing roll 21a accommodates a bearing 21d between the cerealing roll 21a and the cerealing chamber 20a on the rear side of the large diameter portion 21c.
The milling roll main body 21b has a milling piece projecting radially on a cylindrical outer peripheral surface, and the milling piece extends in the front-rear direction. The fine roll body 21b is accommodated in the demetalization wire mesh 20d.

  The rotating device 22 mainly includes a main motor 22a that rotates the milling roll 21, and a pulley is fixed to a shaft portion that protrudes rearward from the cerealing roll 21a and an output shaft of the main motor 22a, and a belt 22b is attached to each pulley. Multiplied by.

  As shown in FIG. 2, the resistance plate 23 is a plate larger than the outlet in order to close the outlet of the semen chamber main body 20 c.

  The resistance device 30 adjusts the degree of milling of the polished rice, and includes a swing mechanism 31 that supports the resistance plate 23 so as to be swingable, and a force that presses the resistance plate 23 toward the exit of the milling chamber 20, that is, a resistance force And a resistance device main body 32 for adjusting the above.

  The swing mechanism 31 includes a pair of holding plates 24b of the discharge chute 24, a support shaft 31a spanned between the pair of holding plates 24b, and an arm 31b supported by inserting an intermediate portion in the length of the support shaft 31a. It has. A resistance plate 23 is connected to the front side of the lower end of the arm 31b. The upper end of the arm 31b has a U-shape that bifurcates.

The resistance device main body 32 includes a resistance motor 33, a screw shaft 34 that is connected to the output shaft of the resistance motor 33 in a straight line, a nut body 35 that is screwed to the screw shaft 34, and a spring 36 (coil spring) that is inserted through the screw shaft 34. A spring 36 is sandwiched between a nut body 35 whose upper end is screwed to the screw shaft 34 and an arm 31b through which the upper end (U-shaped portion) is inserted. The resistance device main body 32 is fixed on the top plate 3e of the removal case 3d.
The output shaft of the resistance motor 33 protrudes forward.
The nut body 35 is held so as not to rotate in the circumferential direction of the screw shaft 34 by a holding member (not shown). Therefore, when the screw shaft 34 is rotated forward or reverse by the resistance motor 33, the nut body 35 is moved forward or backward. The position of the front end of the spring 36 changes depending on the position where the nut body 35 moves forward or backward, and the arm 31b swings. Depending on the position where the nut body 35 moves backward, a gap is formed between the resistance plate 23 and the exit of the scouring chamber 20, and depending on the position where the nut body 35 moves forward, the resistance plate 23 is strong against the exit of the scouring chamber 20. Pressed weakly. Therefore, the resistance force is adjusted by adjusting the position of the nut body 35.

The removal device 3 includes a removal case 3d that covers the periphery of the washing room 20 in a state of opening downward, a tubular waste collection duct 3a that is connected to the lower part of the removal case 3d, and a room in the middle of the waste collection duct 3a. And a fan motor 3c for rotating the fan removal fan 3b, and a cyclone (not shown) as a recovery device connected to the terminal side of the bag recovery duct 3a.
The removal case 3d is fixed to the outside of the support frame 20b so as to surround the semen chamber main body 20c together with the support frame 20b. The removal case 3d is composed of front and rear and upper face plates 3f, 3h, 3e and left and right face plates (not shown). A rear plate 3h is sandwiched and fixed between the rear frame 20v and the cerealing chamber 20a in a state of projecting radially outward, and a front plate 3f projects radially outward on the front side of the front frame 20u. It is fixed in the state to do. The front and rear face plates 3f and 3h are each provided with a piece bent horizontally from the upper end thereof, and the top face plate 3e is fixed on both pieces. Further, the front and rear face plates 3f and 3h are respectively provided with pieces bent in the horizontal direction from the left and right side ends, and the left and right side plates are fixed to the both pieces in the same direction on the left and right. The soot recovery duct 3a is connected to the lower part of such a desiccation case 3d.
The fan motor 3c rotates the scissor fan 3b, and the soot is recovered by the cyclone by passing through the holes of the scissor wire mesh 20d by the suction action generated in the scissor recovery duct 3a.

  As shown in FIG. 3, the operation device 4 is an operation panel, which includes an operation start unit 4 a, an operation stop unit 4 b, a decompression operation unit 4 c and a pressurization operation unit 4 d as a whitening degree operation unit for setting a whitening degree, and whitening. A whitening degree display unit 4e for displaying the degree is provided. The operation start unit 4a is composed of a switch with a character display of operation, and the operation stop unit 4b is composed of a switch with a character display of stop. The degree-of-whitening display section 4e is composed of a plurality of lamps arranged on each character display of 1, 3, 5, 7, white rice, and upper white, and only one of the lamps is lit. However, the degree of whitening is indicated by turning off the other lamps. When the depressurization operation unit 4c is pressed, the lamp that has been turned on until then is turned off, and the lamp next to the one with the lower degree of fineness is turned on. When the pressurizing operation unit 4d is pressed, the lamp that has been turned on until then is turned off, and the lamp next to the one with the higher degree of whitening is turned on. Incidentally, in the illustrated example, each part of the operating device 4 is configured by a switch or a lamp. However, the operating device 4 may be a liquid crystal panel. In this case, each part of the operating device 4 is It is configured as a display unit of a liquid crystal panel.

  As shown in FIG. 4, the control device 5 includes an input interface 5a, an output interface 5b, and a so-called microcomputer 5c including a CPU / memory. Predetermined program data is recorded in the memory. A signal output from the operation device 4 or the brown rice sensor 11a is taken into the CPU via the input interface 5a, and the CPU executes processing based on the program data. Is output from the CPU to various devices via the output interface 5b.

Hereinafter, a first example of the rice milling method of the present invention to which the rice milling machine of the first embodiment described above is applied will be described.
(1) Initially, the driving of the spermatozoon device 2 and the dehairing device 3 is stopped. When the user puts brown rice into the hopper 1, the brown rice sensor 11 a detects the brown rice and a detection signal is output to the control device 5. The control device 5 grasps that the brown rice is in the hopper 1. Moreover, since the shutter 13 is open, the brown rice falls into the milling chamber 20 from the entrance.
(2) When the user operates the pressurizing operation unit 4d or the decompression operation unit 4c to set the whitening degree display unit 4e to indicate a desired whitening degree, the operation signal is sent from the operating device 4 to the control device 5. The degree of whitening that has been output and stored in the memory until then is updated and stored in the memory as the degree of whitening that matches the operation signal. Further, in this example, immediately after the operation signal is input, the control device 5 updates and stores the degree of whitening, and outputs the normal rotation or reverse signal of the rotation number corresponding to the operation signal to the resistance motor 33 of the resistance device 30. It is assumed that the resistance motor 33 is rotated forward or reverse. More specifically, the control device 5 outputs a signal for causing the resistance motor 33 to rotate the screw shaft 34 forward or backward a predetermined number of times. The screw shaft 34 rotates forward or reverse, and the nut body 35 moves in the longitudinal direction of the screw shaft 34, whereby the relationship between the resistance plate 23 and the exit of the scouring chamber 20 is determined. In this example, it is assumed that the depressurization operation unit 4c is operated so as to achieve one stroke with the lowest degree of whitening among the strokes. At this time, the nut body 35 moves to a position where a gap is formed between the resistance plate 23 and the exit of the sperm chamber 20. By the way, there is no brown rice in the milling room 20 immediately after the start of operation. Therefore, if the resistance motor 33 of the resistance device 30 is rotated forward or reverse according to the operation signal, it will not be polished to the desired degree of milling for a short time. become. There is also a method for solving such a problem, but this is not related to the gist of the present invention, so it is omitted in the description of this example.
(3) When the operation start unit 4 a is pressed, the operation start signal is output from the operation device 4 to the control device 5. Based on the operation start signal, the control device 5 outputs drive signals to the main motor 22a of the milling device 2 and the fan motor 3c of the hair removal device 3 on the condition that brown rice is present in the hopper 1, and the rice milling rice To start. The milling roll 21 is rotated by the rotation of the main motor 22a, brown rice is sequentially supplied from the hopper 1 into the milling chamber 20, and the brown rice is rubbed by the demetalization wire mesh 20d toward the exit side of the milling chamber 20, so that a desired amount of rice bran is obtained. Only peel off. Further, the fan removal fan 3b is rotated by the rotation of the fan motor 3c and the inside of the semen chamber 20 becomes negative pressure, so that the peeled cocoon is collected in the cyclone through the cocoon collection duct 3a. The rice after milling toward the exit of the milling chamber 20 falls from the gap G already formed between the resistance plate 23 and the outlet while pushing the resistance plate 23 away from the outlet as shown in FIG. Then, it passes through the discharge chute 24 and falls to the lower side to be collected.
(4) Thereafter, the user may operate the operation stop unit 4b during the milled rice. Then, a stop signal of the operation stop unit 4 b is output from the operation device 4 to the control device 5. When the detection signal from the brown rice sensor 11a is being input and the stop signal from the operation stop unit 4b is input, the control device 5 indicates that the operation has been stopped during the rice milling operation (the brown rice sensor 11a). The operation stop signal is received during the presence of the brown rice detection signal from the storage device), and the normal rotation signal is sent to the resistance motor 33 of the resistance device 30. When the resistance motor 33 rotates normally, the screw shaft 34 rotates normally, and the nut body 35 is moved to a predetermined position (temporary interruption position). Thereby, the resistance plate 23 is strongly pressed against the exit of the semen chamber 20. Further, the control device 5 sends a forward rotation signal to the resistance motor 33 of the resistance device 30, and then outputs a stop signal to the main motor 22 a of the milling device 2 and the fan motor 3 c of the hair removal device 3. As a result, the demolding fan 3b stops rotating and stops sucking the koji, and the kneading roll 21 of the kneading device 2 stops rotating so that the brown rice is not supplied into the kneading chamber 20. As shown in FIG. The chamber 20 is filled with brown rice. In this state, the resistance force of the resistance plate 23 is set to such an extent that the rice does not fall naturally from the exit of the milling chamber 20. That is, the resistance plate 23 is held in a state in which the resistance plate 23 is not separated from the exit of the milling chamber 20 by the dead weight of the brown rice filled in the milling chamber 20.
(5) When the user operates the operation start unit 4 a again, an operation start signal is output from the operation device 4 to the control device 5. Based on the input of the operation start signal in the temporarily interrupted state, the control device 5 sends a reverse rotation signal corresponding to the number of revolutions that is the original degree of whitening before the operation is stopped to the resistance motor 33 of the resistance device 30. Along with the reverse rotation of the resistance motor 33, the screw shaft 34 is reversely rotated, the nut body 35 is moved again to a predetermined degree of whitening, and a gap G is formed between the resistance plate 23 and the exit of the finishing chamber 20. . In addition, after the reverse rotation of the resistance motor 33 is finished, the control device 5 outputs a drive signal to the main motor 22a of the milling device 2 and the fan motor 3c of the hair removal device 3. The drive signal causes the main motor 22a and the fan motor 3c to rotate again, and the brown rice is supplied to the milling chamber 20 again, and the milled rice is collected, and the milled rice is collected in the cyclone.
(6) When the brown rice sensor 11a stops detecting brown rice, an undetected signal is output from the brown rice sensor 11a to the control device 5, and the control device 5 outputs a drive stop signal to the main motor 22a and the fan motor 3c after a predetermined time has elapsed. And finish the milled rice. As in the initial stage, rice milling is performed in a state where the milling chamber 20 is not filled with brown rice in the end stage of the rice milling, and the rice milling cannot be performed at a desired degree of milling for a short time. There is also a method for solving such a problem, but this is not related to the gist of the present invention, so it is omitted in the description of this example. This is the end of rice milling.

  The rice mill of the second embodiment applied to the present invention is different from the rice mill of the first embodiment in the hopper 1 as shown in FIG. More specifically, the hopper 1 includes a hopper body 11, a connecting pipe 12, and a fixed amount supply device 16. In the illustrated example, the connecting pipe 12 is provided integrally with the cerealing room 20a.

The fixed amount supply device 16 includes a supply chamber 16a through which the brown rice passes downward, and a feeding blade 17 that is rotatably supported around a shaft 16b in the supply chamber 16a. The upper part of the supply chamber 16 a has a funnel shape so as to cover the lower part of the hopper body 11. The height intermediate portion of the supply chamber 16a is a horizontal cylindrical measuring chamber, and the feeding blade 17 is accommodated in the internal space of the measuring chamber. The outlet side of the lower part of the supply chamber 16 a is connected to the connecting pipe 12.
The feeding blade 17 includes a block 17a in which the shaft 16b is fixed at the center, and a plurality of blade bodies 17b attached to the block 17a so as to protrude radially around the shaft 16b. A space for taking in brown rice is formed by the two blade bodies 17b and the block 17a adjacent in the circumferential direction. A shaft 16b fixed to the center of the block 17a protrudes outside the measuring chamber, and a feeding motor (not shown) is connected to the shaft 16b in a straight line. Therefore, the amount of brown rice supplied to the milling chamber 20 can be controlled by controlling the rotation angle of the steering motor.

A second example of the rice milling method of the present invention to which the rice milling machine of the second embodiment is applied will be described.
(1) Initially, the driving of the finer device 2, the dehairing device 3, and the fixed amount supply device 16 (running motor) is stopped. When the user puts brown rice into the hopper 1, the brown rice sensor 11 a detects the brown rice and a detection signal is output to the control device 5. The control device 5 grasps that the brown rice is in the hopper 1.
(2) When the user presses the pressurizing operation unit 4d or the decompression operation unit 4c and the whitening degree display unit 4e is set so as to indicate a desired whitening degree, an operation signal is output from the operation device 4 to the control device 5. The set whitening degree is stored. In the second example, as in the first example, immediately after the operation signal is input, the control device 5 outputs a normal rotation or reverse rotation signal corresponding to the operation signal to the resistance motor 33 of the resistance device 30. Then, the resistance motor 33 is rotated forward or backward, and the nut body 35 is moved, so that a gap is formed between the resistance plate 23 and the exit of the scouring chamber 20 so as to make one stroke.
(3) When the operation start unit 4 a is pressed, the operation start signal is output from the operation device 4 to the control device 5. On the condition that brown rice is present in the hopper 1, the control device 5 applies the main motor 22 a of the milling device 2, the fan motor 3 c of the dehairing device 3, and the operation motor of the quantitative supply device 16 based on the operation start signal. A drive signal is output and rice milling is performed. The steering blades are rotated by the rotation of the steering motor, the brown rice is sent to the milling chamber 20, the main motor 22a and the fan motor 3c are rotated, and the milled rice is started.
(4) Thereafter, the user may operate the operation stop unit 4b during the milled rice. Then, a stop signal of the operation stop unit 4 b is output from the operation device 4 to the control device 5. The control device 5 outputs a stop signal to the operation motor of the fixed quantity supply device 16, whereby the operation motor stops rotating and the supply of brown rice to the milling chamber 20 is stopped. Further, after the feed motor stops rotating, the main motor 22a and the fan motor 3c continue to rotate, and after a predetermined time has elapsed (for example, when brown rice is no longer in the cerealing room 20a or before and after), the resistance motor 33 A normal rotation signal is sent, and the resistance plate 23 is strongly pressed against the exit of the milling chamber 20, and the state where the brown rice is accommodated in the milling chamber main body 20c with a predetermined pressure is maintained. In addition, the control device 5 sends a forward rotation signal to the resistance motor 33 of the resistance device 30 and then outputs a stop signal to the main motor 22a of the milling device 2 and the fan motor 3c of the hair removal device 3, thereby the main motor 22a. And the fan motor 3c stops rotating, and soot suction stops. At this time, the resistance plate 23 is held in a state in which the resistance plate 23 is not separated from the exit of the milling chamber 20 by the dead weight of the brown rice filled in the milling chamber 20.
(5) When the user operates the operation start unit 4 a again, an operation start signal is output from the operation device 4 to the control device 5. The control device 5 outputs drive signals to the main motor 22a of the finishing device 2 and the fan motor 3c of the removal device 3 at substantially the same time, and outputs the resistance motor 33 to the original whitening degree before the operation is stopped. Is output after the previous drive signal or at substantially the same time. As a result, the main motor 22a and the fan motor 3c rotate. Similarly to the first example, the control device 5 sends to the resistance motor 33 a reverse signal corresponding to the number of revolutions that is the original degree of whitening before the operation is stopped. A gap is formed between the two. The control device 5 outputs a drive signal to the feeding motor after the reverse rotation of the resistance motor 33 is completed. The feeding motor is rotated again by the drive signal, the brown rice is supplied again to the milling chamber 20, the milling is restarted, and the milled rice is collected in the cyclone.
(6) When the brown rice sensor 11a stops detecting brown rice, an undetected signal is output from the brown rice sensor 11a to the control device 5, and a stop signal is sent from the control device 5 to the main motor 22a, the fan motor 3c, and the feeding motor after a predetermined time has elapsed. Is output. This completes the rice milling process.

  The present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the spirit of the present invention.

  For example, in each of the examples of the rice milling method, the rice milling was performed at the first level with the lowest degree of milling, so the resistance device 30 was adjusted to the resistance force that formed a gap between the resistance plate 23 and the outlet. However, the control method of the rice milling machine according to the present invention is not limited to one rice milling but is applied even to the case of rice milling rice with a slightly higher degree of whitening than one rice milling. In this case, brown rice is placed in the rice milling room 20. In the absence, the resistance device 30 is adjusted to the resistance force that the resistance plate 23 is lightly pressed against the exit of the semen chamber 20, and the exit of the semen chamber 20 is blocked by the resistance plate 23. However, the resistance in this case is such resistance that the brown rice is filled in the milling room 20 and the resistance plate 23 is separated from the outlet by the weight of the filled brown rice. When the operation stop unit 4b is operated while the rice is being milled with such resistance, the resistance plate 23 is strongly pressed against the exit of the milling chamber 20 in the same manner as in the first example. Prevent the rice from falling naturally.

DESCRIPTION OF SYMBOLS 1 Hopper 11 Hopper main body 11a Brown rice sensor 12 Connection pipe | tube 13 Shutter 14 Shutter guide 15 Shutter shaft 16 Constant supply apparatus 16a Supply chamber 16b Shaft 17 Feeding blade 17a Block 17b Blade main body 2 Milling device 20 Milling chamber 20a Grain chamber 20b Support frame 20c Refining room main body 20d Removal wire mesh 20e Wire mesh frame 20f Rear guide 20h Exit member 20i Cover 20u Front frame 20v Rear frame 20w Connecting rod 21 Milling roll 21a Grain roll 21b Milling roll body 21c Large diameter portion 21d Bearing 22 Rotating device 22a Main motor 22b belt 23 resistance plate 24 discharge chute 24a central plate 24b holding plate 30 resistance device 31 swing mechanism 31a support shaft 31b arm 32 resistance device body 33 resistance motor 34 screw shaft 35 nut body 36 spring 3 removal device 3a 糠 recovery duct 3b Removal fan 3c fan motor 3d removal case 3e top plate 3f front plate 3h rear plate 4 operation device 4a operation start unit 4b operation stop unit 4c pressure reduction operation unit 4d pressurization operation unit 4e whitening degree display unit 5 control unit 5a input interface 5b output interface 5c microcomputer 6 housing G gap

Claims (2)

A brown rice hopper,
A cylindrical milling chamber for milling rice that has an entrance for taking in brown rice from the hopper, a milling roll that is rotatably supported in the milling chamber, a rotating device that rotates the milling roll, and a resistance plate that is supported to open and close the exit of the milling chamber A scouring device comprising a resistance device for adjusting the resistance force pressing the resistance plate toward the outlet;
An operation device including a whitening degree operation unit for setting the whitening degree, a driving start unit, and a driving stop unit;
In a method for controlling a rice mill comprising a control device that controls each drive of a rotating device and a resistance device based on a signal from an operating device,
The rotating device is adjusted in a state in which the resistance device is adjusted to a resistance force such that the resistance plate is separated from the outlet by the dead weight of the brown rice filled in the milling chamber or a clearance is formed between the resistance plate and the outlet. When receiving a stop signal from the operation stop unit while driving and milling the rice, the control device thereafter stops driving the rotating device and increases the resistance force of the resistance device. To close the exit of the sperm chamber,
When receiving the operation start signal from the operation start unit after closing, the control device drives the resistance device to return to the resistance force in the milled rice and restarts the driving of the rotating device. Control method of rice milling machine. The method for controlling a rice mill according to claim 1,
A method for controlling a rice mill, wherein the milling room is inclined so that the exit side is lower than the entrance side.

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