Rice husking and milling facility

Abstract

To provide a rice husking and milling facility which can rationally discharge foreign matters.SOLUTION: A rice husking and milling facility for partitioning the inside in a building 1 into an operation chamber A for a user and a machine chamber B having a husking machine 4 and a rice milling machine 7 by a partition wall 11a, and rice husking unhulled rice brought by a user or milling hulled rice brought by the user is configured to provide a second gutter 24 in a wind selection part 23 of the husking machine 4, to connect a flowing-down cylinder 32 for circulation and a flowing-down cylinder 34 for discharge for returning to a hulling part 21 of the husking machine 4, to the second gutter 24, in a branched shape, to provide a switching valve 35 in a branch part, and to switch a matter to be sorted to the second gutter 24 to the side of the flowing-down cylinder 32 for circulation or the side of the flowing-down cylinder 34 for discharge. Time measuring means 38a for measuring a time for driving the wind selection part 23 is provided, and is configured to execute a foreign matter discharge mode of switching the switching valve 35 so that the matter to be sorted is to flow down to the side of the flowing-down cylinder 34 for discharge depending on a predetermined integration time of the wind selection part 23.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a paddy rubbing and polishing facility capable of appropriately discharging circulating foreign matters.

Background Art

[0002] A coin paddy rubbing and polishing machine having a sorting net in an inclined posture that can be swung to sort foreign matters such as straw debris mixed in brown rice is known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] According to Patent Document 1, desired foreign matter sorting can be performed by swinging the sorting net.

[0005] However, if the configuration is such that the sorting net swings, the entire device becomes bulky, which is contrary to the coin polishing facility that aims to be compact. In addition, the foreign matters are entangled with straw debris, brown rice, and rice husks and only circulate repeatedly without being removable.

[0006] An object of the present invention is to rationally discharge foreign matters in a paddy rubbing and polishing facility.

Means for Solving the Problems

[0007] In order to solve such problems, the invention according to claim 1 partitions the interior of the building 1 into an operation room A for users with a partition wall 11a and a machine room B equipped with a paddy hulling machine 4 and a rice milling machine 7. In the paddy hulling and rice milling equipment for the paddy brought by the user, a second gutter 24 is provided in the winnowing section 23 of the paddy hulling machine 4, and a circulation downcomer 32 and a discharge downcomer 34 that return to the hulling section 21 of the paddy hulling machine 4 are connected to the second gutter 24 in a branched manner. A switching valve 35 is provided at the branch portion, and the configuration is such that the selected material reaching the second gutter 24 is switched to the circulation downcomer 32 side or the discharge downcomer 34 side.

[0008] The invention according to claim 2 is configured to execute a foreign matter discharge mode in which, in the invention according to claim 1, a timing means 38a for timing the driving time of the winnowing section 23 is provided, and the switching valve 35 is switched so that the selected material flows down to the discharge downcomer 34 side according to a predetermined integration time of the winnowing section 23.

[0009] The invention according to claim 3 is configured such that, in the invention according to claim 1, during the foreign matter discharge mode in which the switching valve 35 is switched so that the selected material flows down to the discharge downcomer 34 side, the rotation speed of the winnowing section 23 is increased.

Advantages of the Invention

[0010] According to the invention described in claim 1, during the paddy hulling and rice milling operation, usually, the switching valve 35 is set so that the second product flows down to the circulation downcomer 32 side, and the switching valve 35 can be switched in a timely manner to discharge the accumulated foreign matter.

[0011] The invention according to claim 2 can automatically discharge foreign matter because, in addition to the effect described in claim 1, the foreign matter discharge mode is executed according to a predetermined integration time of the winnowing section 23.

[0012] The invention according to claim 3 is effective for scattering and discharging foreign matter by increasing the rotation speed of the winnowing section 23 during the foreign matter discharge mode, in addition to the invention described in claim 1.

Brief Description of the Drawings

[0013]

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Embodiments for Carrying Out the Invention

[0014] As an explanation of this embodiment, it will be explained based on the building type of paddy husk rubbing and rice polishing equipment. As shown in the block diagram showing the working process of FIG. 1, the paddy hulling and rice milling equipment according to the present invention includes an input hopper 2 for quantitatively feeding the input grains, a first elevator 3 for receiving the fed grains and lifting and discharging them, a centrifugal paddy hulling machine 4 for centrifugally hulling the discharged paddy rice, a stone removing machine 5 for sorting foreign substances in the received brown rice, a second elevator 6 for lifting and discharging the brown rice from which foreign substances have been sorted, a rice milling machine 7 for pounding and polishing the discharged brown rice, a white rice hopper 8 for storing the pounded white rice, etc., and is configured to be able to continuously and automatically process paddy hulling and brown rice pounding.

[0015] At the discharge port of the first elevator 3, a first switching valve 3a, which is a switching means, is provided to be switchable with the centrifugal paddy hulling machine 4 in order to send the brown rice to the stone removing machine 5 when the brown rice is received. Also, a second switching valve 3b is provided below the first switching valve 3a in order to return the input grains to the return port 3c provided above the input hopper 2, and is configured to be switchable between the return passage 3d side and the stone removing machine 5 side.

[0016] As shown in the overall plan view of FIG. 2, the front view of the main part of the machine room in FIG. 3, and the enlarged side view of the main part of the machine room in FIG. 4, the specific equipment layout configuration of the paddy hulling and rice milling equipment divides the building 1 into two by the partition wall 11a, and forms an operation room A, which is a guest room for the user to operate, and a machine room B for accommodating the equipment for paddy hulling and rice milling, front and back. The building 1 forms maintenance ports 11c and 11e for the machine room B on the left and right side walls 11b and 11b, and a central door 12 is provided at a substantially central position of the partition wall 11a. An operation panel 12a, which will be described later, is provided on the guest room side of the central door 12.

[0017] An input port of the input hopper 2 is provided on one side of the left and right of the operation room A, and a bag placing table 2a is provided in front of the input port of the input hopper 2. Also, a discharge port of the white rice hopper 8 is provided on the other side of the left and right.

[0018] In Machine Room B, along the position adjacent to the side wall 11b and behind the input hopper 2, the first elevator 3 and the centrifugal rice huller 4 are arranged in this order from the front side. This centrifugal rice huller 4 is arranged at a position facing the maintenance opening 11c formed in the side wall 11b. The maintenance opening 11c is configured to be opened and closed by an opening / closing door 11f and is for the administrator to enter and exit the Machine Room B for inspection. Note that a maintenance opening 11e is also formed in the side wall 11b on the take-out side, and it is configured to be opened and closed by a second opening / closing door 11g.

[0019] In the central part of Machine Room B, the second elevator 6 is arranged near the central door 12, and the stone remover 5 is arranged at a position facing the central door 12 behind it. In the take-out side D of Machine Room B, the rice polisher 7 is arranged at a position adjacent to the side wall 11b behind the white rice hopper 8, and the centrifugal separation part 15 composed of a cyclone 15b and a transfer screw 15a and rice bran bags E, E are arranged behind the rice polisher 7.

[0020] The centrifugal rice huller 4 constitutes a hulling part 21 as an impeller part from an impeller 21a that centrifugally projects grain by a rotating blade and an impeller case 21c that houses the impeller 21a and impacts and hulls the grain received from the supply port 21b formed at its axial center position. The hulling part 21 which is the impeller part and a hulled grain passing cylinder 22 that guides and projects the hulled grains by the impeller part upward are arranged facing the maintenance opening 11c. When the administrator opens the opening / closing door 11f, the hulling part 21 which is the impeller part and the hulled grain passing cylinder 22 protrude outside the building 1, and the administrator can perform maintenance such as replacing the impeller 21a from outside the building.

[0021] Also, the winnowing section 23 that receives the threshed grains passing through the threshing passage cylinder 22 at the upper end opening 23a and separates the chaff by suction with the suction fan 23d is arranged at a position inside the impeller case 21c and at a high position within the height range of the first elevator 3. The winnowing section 23 includes a flow-down plate 24b formed to slope downward and forward from below the upper end opening 23a, a suction fan 23d, a winnowing path 24c through which the chaff sucked by the suction fan 23d passes, a dust exhaust cylinder 23b, and a brown rice discharge port 23c provided below the flow end of the flow-down plate 24b. The brown rice discharging section opens at the lower front of the winnowing section 23, the dust exhaust cylinder 23b is penetrated and supported by the rear wall 11d of the building 1, and if necessary, the transfer screw 15a of the centrifugal separation section 15 is connected to discharge the overflow bran.

[0022] The impeller case 21c is configured to be openable by an inspection lid, and the threshing passage cylinder 22 is detachably connected between the impeller case 21c and the winnowing section 23 to configure the threshing section 21, which is an impeller section, to be disassemblable. The winnowing section 23 is provided with a second trough 24 into which immature Shina grains flow, and is communicated so as to return to the supply port 21b of the impeller 21a formed in the impeller case 21c. This supply port 21b is arranged at a lower position than the inlet 24a of the second trough 24 and the bottom of the second trough 24 is formed to be inclined in order to directly input the Shina grains into the threshing section 21, which is an impeller section, and quickly process the threshing of paddy rice.

[0023] The connection configuration of the centrifugal paddy rice grader 4 is such that the supply port 21b of the impeller case 21c is arranged at a position lower than the first switching valve 3a behind the first elevator 3, and the two are communicated by a paddy rice falling cylinder 25 that slopes downward and backward between them. The brown rice supply port 27a of the stone remover 5 is arranged at a low position in front of the brown rice discharge port 23c that opens at the lower front of the winnowing section 23, and the two are communicated by a threshed rice falling cylinder 26 that slopes downward and forward between them. This threshed rice falling cylinder 26 branches from the first switching valve 3a, slopes horizontally downward toward the inside, and merges with the brown rice falling cylinder 27 at the brown rice supply port 27a of the stone remover 5. A second switching valve 3b is provided in the middle of this brown rice falling cylinder 27.

[0024] Regarding the transmission part of the centrifugal rice husker 4, an electric motor 28 that transmits power to the peeling part 21, which is the impeller part, and the winnowing part 23 via a belt 29 is provided below the winnowing part 23, and upper and lower split transmission covers 29a and 29b that cover the inside thereof are provided. The electric motor 28 is configured such that its fixed position can be adjusted with respect to the inclined frame 28a for belt tension adjustment, and idlers 30a and 30b are fixedly arranged to ensure the belt winding angle. The lower half of the transmission cover 29b is configured to increase rigidity and resist the pressure received from the adjacent rice bran bag E.

[0025] On the partition wall 11a of the operation room A, as shown in the side view of the passenger compartment in Fig. 5, a charging hopper 2 with a shutter for grain charging and a polished rice hopper 8 for taking out polished rice are arranged. By means of an operation panel 12a provided on the central door 12, for the grains brought by the user, it is possible to select whether to perform rice husking and polishing treatment on paddy rice or polishing treatment on brown rice through fully automatic operation according to the selection and specification of the polishing specifications.

[0026] The operation panel 12a is provided with a fee input port 13a and a whiteness selection switch 13b, and incorporates a control unit C.

[0027] Then, when the user inserts a fee, inserts paddy or brown rice into the charging hopper 2, and selects the desired whiteness with the whiteness selection switch 13b, each part of the device in the machine room B starts operating. In this embodiment, a grain discrimination sensor 61 for discriminating between paddy and brown rice is provided in the charging hopper 2, and it selects whether to perform rice husking and polishing treatment or brown rice polishing treatment, and operates based on the working process sequence shown in Fig. 1.

[0028] When the grains input into the charging hopper 2 are paddy, they undergo rice husking (peeling) and winnowing of rice husks in the first elevator 3, the peeling part 21, which is the impeller part of the centrifugal rice husker 4, and the winnowing part 23, and then pass through the stone remover and the second elevator to perform polishing treatment in the polishing machine 7, and the polished white rice is discharged to the polished rice hopper 8 (rice husking and polishing mode).

[0029] When the grains fed into the input hopper 2 are brown rice, they are supplied from the first elevator 3 to the stone remover, and are polished by the rice polisher 7 via the second elevator, and the polished rice is discharged into the white rice hopper 8 (brown rice polishing mode).

[0030] When the operation stops after the operation time for the fee has elapsed and there are grains remaining in the input hopper 2, pressing the return switch 2b drives the first elevator 3, and the first switching valve 3a is switched to the side of the stone remover 5, and the second switching valve 3b is switched to the side of the return port 3c. The user receives the remaining grains in the input hopper 2 from the return port 3c through the return passage 3d with a bag or the like and takes them home.

[0031] By configuring the paddy husking and rice polishing equipment as described above, on the operation panel 12a, operation guidance is started by inserting the fee. According to this guidance, the rice polishing specifications are specified by distinguishing and selecting paddy and brown rice, selecting the degree of whiteness, etc., and by putting the brought-in grains into the input hopper 2, the input grains are transferred. After paddy husking and rice polishing are performed in the machine room B, the white rice stored in the white rice hopper 8 can be taken out.

[0032] Regarding the centrifugal paddy husker 4 with the above configuration, the centrifugal paddy husker 4 is arranged close to the side wall 11b of the building 11, facing the maintenance port 11c formed in the same side wall 11b, and the threshing part 21 which is the impeller part is arranged close. By doing so, just by opening the opening / closing door 11f, the impeller case 21c and the threshed grain passing cylinder 22 are exposed outside the building 1, and the work necessary for maintenance becomes possible. Therefore, the equipment accommodation efficiency in the machine room B is improved, the paddy husking and rice polishing equipment is made compact, and by securing a maintenance space, it is possible to immediately respond to clogging of the threshing part 21 which is the impeller part and replacement of parts such as the impeller 21a.

[0033] Regarding the above centrifugal rice hulling machine 4, since the threshing section 21, which is the impeller section, is composed of the impeller case 21c that can be opened by the inspection lid of the impeller case 21c and the detachable threshed grain passing cylinder 22, when clogging occurs in the threshing section 21, which is this impeller section, it is possible to quickly respond by removing the inspection lid of the impeller case 21c and the threshed grain passing cylinder 22 from the maintenance port 11c.

[0034] In addition, since the second trough 24 for shiina grains is provided in the winnowing section 23 and communicates with the supply port 21b of the lower impeller case 21c, the shiina grains can be directly supplied to the impeller 21a for re-threshing. Therefore, the threshing process is speeded up, and by removing the inspection lid of the impeller case 21c, the second trough 24 becomes visible, enabling maintenance such as removing residual rice at the bottom of the second trough 24.

[0035] Regarding the rice hulling operation of the centrifugal rice hulling machine 4 with the above configuration, paddy rice flows down from the first switching valve 3a through the paddy rice dropping cylinder 25 to the supply port 21b of the rear impeller case 21c, and the impeller 21a raises the subsequent threshed grain passing cylinder 22 to reach the upper end of the winnowing section 23. From the brown rice discharge port 23c, it flows down to the front stone removing machine 5 through the threshed rice dropping cylinder 26. With a smooth streamline, without any special intermediate drive, the rice hulling efficiency is ensured by the smooth transfer of threshed grains from rice hulling to the stone removing machine without difficulty, and rice hulling abnormalities can be avoided by stabilizing the rice hulling action.

[0036] In addition, the three dropping cylinders 25, 26, and 27 can be easily and surely assembled with a simple configuration that does not cross in a plan view. Also, since the stone removing machine 5 is arranged at a low position at a position facing the central door 12 of the partition wall 11a while ensuring a space above it, even when the side rice polishing machine 7 and the rear bran bags E, E are closely arranged, the administrator can open the central door 12 from the operation room A and enter the machine room B for maintenance.

[0037] Next, an improved configuration regarding the second trough 24 and its related components will be described. As described above, in the configuration where the second trough 24 communicates with the supply port 21b of the lower impeller case 21c, in addition to the sesame seeds, foreign substances such as rice straw scraps are mixed into the so-called second product. As a result of some of these foreign substances not being removed by the air separation unit 23 and repeating the circulation, the foreign substances gradually accumulate. Therefore, as shown in FIGS. 6 and 7, a circulation flow-down cylinder 32 to the first elevator 3 and a discharge flow-down cylinder 34 leading to the foreign substance receiving portion 33 are branched and connected to the outlet portion 31a of the second trough connection cylinder 31 connected to the second trough 24, and a switching valve 35 is provided at the branch portion to switch between the circulation flow-down cylinder 32 side and the discharge flow-down cylinder 34 side. During the operation of the husk rubbing and polishing mode, usually, the switching valve 35 is set so that the second product flows down to the circulation flow-down cylinder 32 side, and the switching valve 35 can be switched in a timely manner to discharge the accumulated foreign substances to the foreign substance receiving portion 33.

[0038] Instead of the electric motor 28 that drives the husk removal portion 21, which is the impeller portion, and the air separation unit 23 via the belt 29, an impeller portion motor 36 and an inverter 36a, and an air separation unit motor 37 and an inverter 37a are provided respectively (FIG. 8), and they are configured to be able to operate in conjunction while independently controlling the rotation speed. With this configuration, during the foreign substance discharge mode in which the switching valve 35 is switched to discharge the accumulated foreign substances to the foreign substance receiving portion 33, increasing the rotation speed of the air separation unit 23 is effective for scattering and discharging the foreign substances.

[0039] The switching operation of the switching valve 35 to the discharge flow-down cylinder 34 side may be manual during operation, or it may be configured to be automatic. For example, a timing means 38 for measuring the integrated time of the husk rubbing and polishing mode operation is provided, and when this integrated time reaches a predetermined value, timer control is performed to set it to a foreign substance discharge mode in which it switches to the discharge flow-down cylinder 34 side for a predetermined short time. Instead of the integrated time of the husk rubbing and polishing mode, a timing means 38a for measuring the time for driving the air separation unit 23 is configured, and the same effect can be achieved by executing the foreign substance discharge mode according to the predetermined integrated time of the air separation unit 23. In addition, by setting the configuration to perform the foreign substance discharge mode after the end of the polished rice operation of paddy rubbing, there is no risk of discharging brown rice.

[0040] Also, during the so-called cleaning mode, an foreign object discharge mode may be executed by the switching operation of the switching valve 35. The cleaning mode is a known configuration for reducing the residual rice in the machine. After charging the fee, in a predetermined short time, the residual rice on the net of the charging hopper 2 is dropped by a vibrating means (not shown), and the rice is collected through the first elevator 3 and the stone removing machine 5 to a discharge section (not shown) installed below the stone removing machine 5. During this cleaning mode, by switching the switching valve 35 to the foreign object discharge mode, the foreign objects remaining in the rice husk separator 4 can be collected in the foreign object receiving section 33. Note that during the cleaning mode, a warning to this effect is given, or the charging into the charging hopper 2 is restricted by means for restricting the grain charging of the charging hopper 2.

[0041] Next, based on FIG. 9, the configuration of the on-off valves 39 and 40 that block the passage from the brown rice outlet 23c to the dehulled rice dropping tube 26 will be described. The on-off valves 39 and 40 can guide the sorted brown rice together with foreign objects to the second gutter 24 by opening and closing the passage in the middle of the winnowing path.

[0042] Next, the improvement of the eaves structure above the entrance on the guest room side of the building 1 will be described. The overhanging extension length as the eaves is configured to be changeable, and the extension length is to be set according to the conditions of the installation site and the like. Specifically, as shown in FIG. 10, an auxiliary roof 46 that overlaps the upper part of the fixed roof 45 of the building 1 is provided, and left and right slide pipes 47, 47 that support this auxiliary roof 46 are inserted into left and right support pipes 48, 48 on the building 1 side. When the left and right slide pipes 47, 47 are slid, both the auxiliary roof 46 and the signboard 49 that supports the front end slide, and the overhanging length of the eaves can be changed. It is set to a predetermined value and fastened and fixed with a fixture 50. With such a configuration, only the eaves portion can be freely taken in and out, and the eaves dimension can be changed according to the local installation situation.

[0043] Figure 11 shows the configuration of a coin-operated rice polisher equipped with a charging device for a vehicle. The charging unit 101 is deployed at a position slightly lower than the height of a person's shoulders, about 80 cm to 110 cm, on both sides of the building. This charging unit is equipped with a plug for charging the vehicle.

[0044] When cash is inserted into the charging fee insertion slot 102, the charging time indicator 103 displays the time that can be charged with that fee, allowing the user to confirm the available charging time. The cash inserted into the charging fee insertion slot 102 passes through the coin passage 104 and is inserted into the coin mech 106. The coin mech 106 is a device that detects coins, sends a set operation command signal, confirms the operation of the charging equipment as an operation confirmation, and performs cash settlement. It performs operations such as confirming the inserted amount, calculating the charging time for coin-operated rice polishing, and calculating the change. A sensor 105 for detecting the insertion of coins is arranged, and the detection of coins triggers the operation of the display and setting parts related to the charging setting function.

[0045] The coin mech 106 has a function to return change, and it returns the change through the coin return port 108 using the coin passage 107. The reason for returning change is to handle cases where the charging does not sufficiently meet the requirements of the coin-operated rice polisher.

[0046] In one example, it is a refund when the power supply to the coin-operated rice polisher is insufficient and the vehicle cannot be charged. Also, there may be cases where the charging function of the coin-operated rice polisher itself is faulty and charging the vehicle is impossible.

[0047] In Figure 12, the function of producing lotion from rice bran in the coin-operated rice polisher will be described. In the rice polisher, bran is generated by polishing the surface of brown rice. It has been found that this bran contains beauty ingredients such as vitamins B and E, zinc, and magnesium. By extracting these ingredients and adding and mixing glycerin, it is a system for producing lotion with the coin-operated rice polisher.

[0048] In FIGS. 12(A) and 12(B), water 131 is mixed with the obtained bran 130, and the components of the bran 130 are extracted into water 111 by a stirring device 114. The container for obtaining this extract 115 has a double structure and is composed of an inner container 111 that constitutes the container with a filtration mechanism and an outer container 112 that receives the filtered extract 115. A heat ray 113 is attached to the surface of the outer container 112, which can be heated, and the components of the bran 130 are more easily extracted by the water 111.

[0049] The extract 115 is generally called rice bran water and contains vitamins, minerals, antioxidants, dietary fiber, etc., and can be used for skin care by taking advantage of antioxidant compounds and moisturizing effects. For the production of the proposed lotion, there is an additional solution device 132 for mixing glycerin and other basic skin care liquids, and these are mixed with the extract 115. There is a protective case 117 outside the outer container 112 as shown in FIG. 12(C), which cools the extracted nutrient solution 115 extracted by the heating action of the outer container 112. At the same time, it is sealed to prevent the entry of foreign substances such as dust. Below the outer container 112, a ladle 116 with a shutter is provided. By pressing the switch 119 as shown in FIG. 12(C), the extract 115 can be filled into the cosmetic container 118, and the cosmetic container 118 can be taken out from the outlet 120. Such a mechanism is provided as a separate function of the coin rice polisher as shown in FIG. 12(E).

Explanation of Signs

[0050] 1 Building 4 Rice winnower 7 Rice polisher 11a Partition wall 21 Hulling section 23 Air separation section 24 Second gutter 32 Circulation downflow cylinder 34 Discharge downflow cylinder 35 Switching valve 38a Timing means A Operating room B Machine room

Claims

1. In a paddy hulling and polishing facility that partitions the interior of a building (1) into an operation room (A) for users with a partition wall (11a) and a machine room (B) equipped with a paddy hulling machine (4) and a rice polishing machine (7), and hulls, polishes, or polishes the brown rice brought in by the user, a second gutter (24) is provided in the winnowing section (23) of the paddy hulling machine (4), and a circulation downflow cylinder (32) and a discharge downflow cylinder (34) that return to the hulling section (21) of the paddy hulling machine (4) are connected to the second gutter (24) in a branched manner, and a switching valve (35) is provided at the branch portion, and the configuration is such that the material to be sorted reaching the second gutter (24) is switched to the circulation downflow cylinder (32) side or the discharge downflow cylinder (34) side. The paddy hulling and polishing facility is characterized by this.

2. The paddy hulling and polishing facility according to claim 1, further comprising a timing means (38a) for timing the driving time of the winnowing section (23), and configured to execute a foreign matter discharge mode in which the switching valve (35) is switched so that the material to be sorted flows down to the discharge downflow cylinder (34) side at a predetermined integrated time of the winnowing section (23).

3. The paddy hulling and polishing facility according to claim 1, wherein the rotational speed of the winnowing section (23) is increased during the foreign matter discharge mode in which the switching valve (35) is switched so that the material to be sorted flows down to the discharge downflow cylinder (34) side.

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