JP2019214030A - Rice milling equipment - Google Patents

Abstract

To provide a cheap brown rice transport device of rice milling equipment.SOLUTION: Rice milling equipment comprising: an input hopper 5; a rotary valve 6 which delivers brown rice in the input hopper 5; a stone removal machine 8; a rice milling machine 10; and transport means 7 which transports the brown rice in the input hopper 5 to the stone removal machine 8 side. The transport means 7 is so configured that an air blower 16 is connected to a transport pipe 17 to transport the brown rice by air. When it is detected that an amount of the brown rice in the input hopper 5 becomes a specified amount or less, the air blower 16 is stopped, and air transportation of residual rice, which have been delivered from the rotary valve 6 during stop of the air blower 16, by air is performed by restart of the air blower 16. Further, during the residual rice is transported by air by restart of the air blower 16, the rotary valve 6 is stopped.SELECTED DRAWING: Figure 4

Description

  TECHNICAL FIELD The present invention relates to a rice milling facility for milling rice at a charge.

  A guest room and a machine room are provided before and after the partition wall inside the building, and an operation panel is arranged on the guest room side of the partition wall.In the machine room, a raw material input hopper, brown rice raising and lowering machine, stone removal machine, rice milling machine, rice milling machine Are arranged in order (Patent Document 1).

  In addition, an air carrier is provided below the discharge port of the destoner, and the air carrier is connected to a blower via an air passage, and the air carrier is connected to a rice mill via an air-lifting channel. (Patent Document 2).

JP 2017-131843 A JP-A-8-215589

  SUMMARY OF THE INVENTION It is an object of the present invention to reduce the price of a brown rice transport device of a rice milling facility.

  In order to solve such a problem, the invention according to claim 1 uses a charging hopper 5, a rotary valve 6 for feeding out brown rice in the charging hopper 5, a destoner 8, a rice mill 10, and a brown rice in the charging hopper 5. In the rice milling equipment provided with a conveying means 7 for conveying to the destoner 8 side, the conveying means 7 is configured to connect a blower 16 to a conveying pipe 17 to convey brown rice by air, and the amount of brown rice in the input hopper 5 is a predetermined amount. When the following condition is detected, the blower 16 is stopped, and rice remaining from the rotary valve 6 while the blower 16 is stopped is transferred to the rice mill by restarting the blower 16.

  According to a second aspect of the present invention, in the first aspect of the invention, the rotary valve 6 is stopped while the remaining rice is air-conveyed by restarting the blower 16.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, a first discharge port 18a capable of supplying brown rice to the destoning machine 8 is provided in a storage section 18 provided at the end side of the conveying means 7. And a second opening / closing shutter 22a and a second opening / closing shutter 22b capable of independently opening and closing the first discharge opening 18a and the second discharge opening 18b, respectively. A switching valve 23 is provided to switch brown rice conveyed to the section 18 to the first discharge port 18a side or the second discharge port 18b side, and a take-out switch 24 for returning brown rice to the brown rice return port 21 is provided. Is operated, the first outlet 18a and the second outlet 18b are both closed once by the first opening / closing shutter 22a and the second opening / closing shutter 22b, and then the brown rice is returned by opening the second outlet 18b. And configured to flow down the mouth 21.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, further comprising a foreign matter catching means 20 in the middle of the uplift of the transport pipe 17 constituting the transporting means 7, A foreign matter discharge port 19 communicating with the transport pipe 17 via a foreign matter discharge shutter 19a is provided below the arrangement position of 20.

  According to the first and second aspects of the present invention, since the brown rice transporting means is constituted by the air transporting means instead of the bucket elevator, it can be inexpensively constructed. Further, when the amount of brown rice in the input hopper 5 becomes a small amount of residual rice, the blower 16 is stopped and dropped onto the transport pipe 17 without fail, and the residual rice in the input hopper 5 can be reduced by driving the blower 16 again. . In particular, according to the second aspect of the present invention, the rotary valve 6 is stopped during the driving of the blower 16 again, so that the blowing of the pressurized air by the driving of the blower 16 from the input hopper 5 can be reduced.

  According to the third aspect of the present invention, when the brown rice is taken home, the brown rice is temporarily stored in the storage unit 18 and guided down from the second discharge port 18b with the open / close shutter 22b to the brown rice return port 21. Therefore, the compressed air blown into the storage unit 18 for air conveyance does not leak out from the brown rice return port 21 and does not give a discomfort to the user.

  According to the fourth aspect of the invention, the foreign matter which cannot be moved in the transport pipe 17 by the foreign matter capturing means 20 is discharged from the foreign matter discharge port 19 which is dropped and opened by the stop of the blower 16.

Diagram showing the inside of the rice milling facility as seen from a plane Diagram showing guest rooms viewed from the front Work process diagram of rice milling equipment Side view showing the loading hopper and the first transport unit Partial front view of stone removal hopper Control block diagram Flowchart diagram Flowchart diagram Flowchart diagram

  The price-type rice polishing equipment according to the embodiment of the present invention will be described below.

  As shown in FIG. 2, the rice polishing facility has a configuration in which a building 1 is divided into a machine room 3 and a guest room 4 in a front-rear direction by a partition wall 2.

  In the rice-milling facility, there are an input hopper 5 for accommodating brown rice brought by the user, a rotary valve 6 for feeding the brown rice in the input hopper 5, and a first conveying means 7 for receiving and feeding the fed brown rice. A crusher 8 for separating and separating the stones mixed in the brown rice, a second conveying means 9 for frying the brown rice selected by the crusher 8, a rice mill 10 for milling brown rice to make polished rice, , A white rice tank 11 for accommodating polished rice is provided.

  The charging hopper 5 and the white rice tank 11 are provided so as to be viewed from the passenger room 4 side, and the first transporting means 7, the destoner 8, the second transporting means 9, and the rice polishing machine 10 are provided on the machine room 3 side. The loading hopper 5 is provided on one side of the cabin 4 and the white rice tank 11 is provided on the other side of the cabin 4. Between the charging hopper 5 and the white rice tank 11, a control panel provided with a fineness selection switch 12 for setting the fineness, a fee input port 13 for charging a fee, a change return port 14, and the like is provided on the board surface. On the front side of the charging hopper 5, an opening / closing door 15 for closing and opening the charging port of the charging hopper 5 is provided.

  The first transport means 7 includes a first transport pipe 17 that receives brown rice fed from the charging hopper 5 by rotation of the rotary valve 6 and transports the brown rice by high-pressure air from a blower 16. The first transport pipe 17 is constituted by a hose member, a horizontal transport section 17a connected to a blower 16 at one end and connected below the frame section 6a of the rotary valve 6 so as to receive brown rice in the middle thereof, It is bent and formed into a vertical transport section 17b having an upper end connected to a stone removal tank 18 as a storage section installed above and near the removal machine 8.

  The blower 16 is configured to be able to supply a pressurized air to the first transport pipe 17 by interlocking a fan (not shown) by the rotational drive of a blower motor 16m, and the blower motor 16m is on / off controlled. That is, when the whitening degree whitening switch 12 is turned on on the condition that a fee is charged, the driving is output to the motor of each part of the rice milling equipment, and the blowing motor 16 m is also turned on to supply the compressed air to the transport pipe 17. Similarly, the valve motor 6m linked with the rotary valve 6 is turned on to try to feed the brown rice in the charging hopper 5 through the rotary valve 6, and the brown rice fed from the lower opening of the frame 6a of the valve is transferred to the conveying pipe 17 Is transported along the air to reach a stone removal tank 18 as a storage tank.

  A foreign substance discharge port 19 for foreign matters such as impurities is formed on the side of the horizontal transport section 17a at a bent portion of the transport pipe 17 from the horizontal transport section 17a to the vertical transport section 17b, and a foreign substance discharge shutter for opening and closing the foreign substance discharge port 19 is provided. 19a. A net 20 serving as a foreign matter catching means for catching relatively large or long foreign matters, such as, for example, straw chips, among the foreign substances is arranged in the middle of the vertical transport section 17b of the transport pipe 17, and the foreign matter is transferred during the brown rice transport. Even if is lifted along the vertical transport section 17b, it reaches the net 20 and is caught and falls by its own weight or when the blowing by the blower 16 is stopped. The foreign matter discharge shutter 19a which is to be deposited and is opened appropriately can be discharged outside the apparatus or into the collection box 19b.

  The net 20 as the foreign matter capturing means employs a mesh that can pass the brown rice to be conveyed by air, so that the brown rice can reach the stone removal tank 18 from the upper end of the vertical transport portion 17b. That is, the straw waste is set to be unable to pass through the net 20.

  The destoning tank 18 has a first discharge port 18a and a second discharge port 18b, of which the first discharge port 18a is provided so as to be able to supply brown rice to the destoner 8 and the second discharge port 18b is connected to the input hopper 5. This is a configuration that communicates with the brown rice return port 21 configured above.

  The first discharge port 18a and the second discharge port 18b are respectively provided with first and second opening / closing shutters 22a and 22b corresponding thereto, and the first and second opening / closing shutters 22a and 22b which are always in a closed posture correspond to the first and second opening / closing shutters 22a and 22b. The first and second outlet solenoids 23a and 23b are turned to the open position by excitation. It is configured to return to the closed position by demagnetizing the solenoid 23a or 23b. A switching valve 23 is provided between the first discharge port 18a and the second discharge port 18b. The switching valve 23 is provided so that brown rice that reaches the storage tank 18 always flows down to the first discharge port 18a. The configuration is such that the switching valve 23 is switched in posture by an ON operation to cause brown rice to flow down to the second discharge port 18b side.

  The brown rice subjected to the stone removal processing by the stone removal machine 8 and the brown rice as the remaining rice flow down to the lower hopper 25 provided below the second transporting means 9. The second conveying means 9 is configured to convey brown rice vertically upward by compressed air generated by driving the blower 26. The brown rice lifted by the second conveying means 9 is configured to flow down to the rice polishing tank 27 of the rice polishing machine 10.

  The brown rice fed from the rice mill tank 27 is subjected to whitening processing by the rice mill 10, and the white rice is stored in the white rice tank 11.

  Since the first transporting means 7 is configured to transport brown rice by air by driving the blower 16, when the amount of brown rice in the input hopper 5 is reduced, the first transporting means 7 receives compressed air and cannot fall into the horizontal transporting unit 7a. Therefore, when the amount of brown rice in the input hopper 5 becomes equal to or less than a predetermined value, the driving of the blower 5 is stopped to reduce remaining rice. In the flowchart of FIG. 7, switch and sensor information of each unit is input to the control unit 30 (S101). When the hopper lower limit sensor 31 described later determines that brown rice is present and one of the plurality of milling degree selection switches 12 is turned on, the blower motor 16m and the valve motor 6m are output to be turned on (S102 to S105). The brown rice in the charging hopper 5 is fed out by a predetermined amount by the rotation of the rotary valve 6, and the fed brown rice is conveyed by compressed air generated by the rotation of the blower 6 (S106).

  Then, when the amount of brown rice in the charging hopper 5 falls below the height of the lower limit sensor 31 disposed at a predetermined position and the lower limit sensor 31 is turned on (S107), the blower motor 16m is turned off and the blower 16 stops rotating (S108). . At the same time, the foreign matter discharge shutter 19a is opened (S109). The timer set to the predetermined time T1 is operated. When the predetermined time T1 has elapsed, the blower motor 16m is restarted and the foreign matter discharge shutter 19a is closed (S112, S113), but during this predetermined time T1, the valve motor 6m Since the operation is continued and the brown rice is fed out, almost all of the brown rice in the input hopper 5 remaining below the lower limit sensor 31 is fed out and can be deposited on the horizontal transport section 7a. After the elapse of the predetermined time T1, the valve motor 6m is turned off (S114), and the brown motor to be deposited is conveyed by air (S116) by restarting the blower motor 16m (S115), and passes through the horizontal conveyance unit 17a and the vertical conveyance unit 17b. It can reach the stone removal tank 18.

  In this way, by stopping the blower motor 16m for a predetermined period of time during the feeding of the brown rice by the rotary valve 6, a small amount of the brown rice can be reliably fed to the horizontal transport unit 7a, and the blower 16 can be continued. Pressurized air blows up the gap created by the rotation of the rotary valve 6, and the remaining rice can be reduced without causing brown rice to stay at the input hopper 5. At this time, turning off the valve motor 6m stops the rotary valve 6, thereby preventing the blower 16 from blowing up the compressed air, so that the user of the passenger room 4 does not feel uncomfortable.

  The restart of the blower motor 16m in S115 and the air conveyance in S116 following the restart are executed for a predetermined time T2 set in advance (S117, S118). After the lapse of the predetermined time T2, the blower motor 16m is turned off and stopped. The predetermined time T2 is set to a time during which the transport means 7 can transport brown rice in the input hopper 5 remaining below the lower limit sensor 31.

  Next, the discharge control of the brown rice conveyed by the first conveying means 7 from the stone removal tank 18 as a storage tank will be described with reference to FIG. Steps S201 to S204 correspond to steps S101 to S106 in FIG. Then, the presence or absence of the take-off switch 24 ON operation is determined, and when there is no take-off switch 24 ON operation, the brown rice performs a normal stone removal / milling process, and the switching valve 23 is connected to the side to supply to the stone removal machine 8. Then, the first discharge port 18a is opened and the second discharge port 18b is closed, and the brown rice conveyed by air is sequentially supplied to the destoner 8.

  When it is determined in S205 that the take-out switch 24 has been turned ON, the switching valve 23 switches to the take-out side (S212). Then, the first outlet 18a and the second outlet 18b are both closed to store brown rice in a predetermined manner (S213 to S216). In the embodiment, during the predetermined time T3, the first and second discharge ports 18a and 18b can be closed and stored (S217 to S219). After the predetermined time T3 elapses, the output is stopped to the motor 16m of the blower 16 and the blower is stopped. 16 is stopped (S220), the second discharge port 18b is opened, and the brown rice can be collected from the brown rice return port 21 (S221 to S223).

  In the case of brown rice return, that is, in the case of brown rice take-out, the compressed air is blown out from the brown rice return port 21 because it communicates with the stone removal tank 18 that is conveyed through the brown rice return port 21 and is in the cabin 4 side. Although the user may be uncomfortable, by storing brown rice in the stone removal tank 18 during the predetermined time T3 as described above, the stored brown rice can block the blowout, and can prevent the blowout to the passenger room side. As in the embodiment, by incorporating the stop of the blower 16 as a condition for the opening operation of the second discharge port 18b, the effect of preventing dust scattering is remarkable.

  In the embodiment shown in FIG. 8, when S211 or S223 is executed, the process can return to S201. Therefore, if there is still rice remaining in the input hopper 5 even if brown rice is returned in S223, it is detected in S202, For the first time, brown rice reduction will be implemented.

  The stone removing machine 8 is provided with an inclined rocking sorter 32, and brown rice and stones or similar foreign substances are sorted out by specific gravity. Brown rice is taken out on the lower side of the slope and stones or similar foreign matters are taken out on the upper side of the slope. It should be noted that the remaining rice remaining on the surface of the tilt swing sorter 32 is taken out from the upper side of the tilt.

  The brown rice and the remaining rice taken out by the operation of the destoner 8 are received by the lower hopper 25 of the second transport means 9 and are lifted and transported. The second transporting means 9 has the same configuration as the first transporting means 7, and the second transporting pipe 33 connects the blower 26 and receives the brown rice in the lower hopper 25, and the horizontal transporting section 33 a , And the brown rice conveyed by air is guided downward from the upper end side of the vertical transport unit 33b to the rice polishing tank 27.

  The control of the supply of brown rice to the rice mill and the drive control of the first and second conveying means will be described with reference to FIG. The rice polishing tank 27 is provided with an upper limit sensor 35u, a lower limit sensor 35d, and a rotary valve 36 below. If the upper limit sensor 35u does not detect brown rice (S301, S302), it is determined that brown rice can be received. The conveying means 7, the second conveying means 9 and the rotary valve 36 are driven to supply brown rice to the rice mill 10 to perform rice polishing (S303 to S306). During the milling process, the preset time T4 is counted, and when the preset time T4 (for example, 5 minutes) elapses (S307, S308) and brown rice is detected by the lower limit sensor 35d (S309), the first transport unit 7, the first transport unit 7, The two transporting means 9 and the rotary valve 36 are stopped for a predetermined time T5 (for example, 10 seconds) (S310 to S314). After that, return to the start and repeat the above contents.

  In addition, when brown rice is detected in the upper limit sensor 35u in S302, since brown rice cannot be received any more, the process shifts to S310 to S311. In addition, when detecting the lower limit sensor 35d or less in S309, the driving state of each unit is continued without performing the stop control of each unit, and the process returns to the flow start. When brown rice is equal to or less than the lower limit sensor 35d, it is assumed that rice polishing is about to end.

Dust mixed in the brown rice conveyed by air is provided in the stone removal tank 18 through a connected dust hose 37 so as to be able to be discharged. The discharge end of the dust hose 37 is cleaned by the milling machine 10. The bran discharged by the processing is configured to be introduced so as to be introduced into a bran fan device 38 that conveys the bran in a predetermined manner. In the stone removal tank 18, inclined shelves 18f, 18f... For reducing the wind pressure for air conveyance are provided in an inclined posture to prevent dust scattering.
Next, a procedure for putting cash into the charge slot 13 to perform rice polishing operation will be described.

  When a charge input detection sensor (not shown) detects that the user has input the charge into the charge input port 13, the control unit 30 inputs the detection information and outputs the information to the opening / closing door 15, and the opening / closing door 15 is opened. Work. The user puts the brought brown rice into the loading hopper 5 and selects a desired degree of milling (for example, non-washed rice, standard, and milling) with the milling degree selection switch 12. The control unit 30 receives selection information of the milling degree selection switch 12 and outputs an operation start to each unit of the apparatus.

  When the respective parts of the apparatus are operated, as described above, the brown rice in the charging hopper 5 is fed out by the rotary valve 6, conveyed by the first conveying means 7, destoned by the destoner 8, and conveyed by the second conveying means. Then, the rice is processed by the rice polishing machine 10 to become polished rice and discharged to the polished rice tank 11. When the input hopper lower limit sensor 31 detects that the operation time corresponding to the charge has elapsed or that the brown rice supplied to the rice milling machine 10 has run out, the control unit 30 outputs a stop operation, and after a predetermined time, the rice polishing operation ends. I do. When a set time elapses from the rice polishing stop output, the opening / closing door 15 closes. At the end of the rice polishing operation, if there is a change, the change lamp 14a provided near the change return port 14 is blinked. The user can collect the change coming out of the change return port 14 by looking at the display of the change lamp 14a.

5 Input hopper 6 Rotary valve 7 Transport means (first transport means)
8 Stone removal machine 10 Rice mill 16 Blower 17 Transport pipe (first transport pipe)
18 storage unit (stone removal tank)
18a first discharge port 18b second discharge port 19a foreign matter discharge shutter 20 foreign matter capturing means (net)
22a first open / close shutter 22b second open / close shutter 23 switching valve 24 take-out switch

Claims (4)

  An input hopper (5), a rotary valve (6) for feeding unpolished rice in the input hopper (5), a destoner (8), a rice mill (10), and brown rice of the input hopper (5) are removed from the stone by the stone. In a rice milling apparatus provided with a conveying means (7) for conveying to a punching machine (8), the conveying means (7) is configured to connect a blower (16) to a conveying pipe (17) to convey brown rice by air, When it is detected that the amount of brown rice in the charging hopper (5) has become equal to or less than a predetermined amount, the blower (16) is stopped, and the remaining rice fed out from the rotary valve (6) while the blower (16) is stopped. Milling equipment configured to convey air by restarting the blower (16).   The rice polishing facility according to claim 1, wherein the rotary valve (6) is stopped while the remaining rice is conveyed by air by restarting the blower (16).   A first discharge port (18a) capable of supplying brown rice to the destoner (8) side and a first discharge port (21) capable of communicating with the brown rice return port (21) are provided in a storage section (18) provided at the end side of the transport means (7). 2 opening (18b), and a first opening / closing shutter (22a) and a second opening / closing shutter (22b) capable of opening and closing the first opening (18a) and the second opening (18b) independently. A switching valve (23) for switching the brown rice conveyed to the storage section (18) to the first discharge port (18a) side or the second discharge port (18b) side, and providing the brown rice return port ( 21) A take-out switch (24) for returning brown rice is provided, and when the take-out switch (24) is operated, the first discharge opening (18a) is held by the first opening / closing shutter (22a) and the second opening / closing shutter (22b). And the second discharge (18b) together temporarily after the closing, rice plant according brown rice said second discharge port (18b) is opened to claim 1 or claim 2 has a structure which flows down to the brown rice reduction opening (21). A foreign matter capturing means (20) is provided in the middle of the lifting of the transport pipe (17) constituting the transport means (7). The rice milling equipment according to any one of claims 1 to 3, further comprising a foreign matter discharge port (19) communicating with the foreign matter discharge shutter (19a).

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