JP2008173578A - Automated rice milling apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a discriminating means inexpensive, and to suppress erroneous operation of the discriminating means. <P>SOLUTION: When the operation of the rice milling apparatus 10 is started, paddy M or brown rice G charged into a feeding hopper 14 is fed to a husker 18 and subjected to a husking treatment for a given time. Rice grains charged into the feeding hopper 14 are discriminated to be paddy M when the husk detector 62 of the husker 18 detects husk K. When the husk detector 62 detects no husk K, rice grains charged into the feeding hopper 14 are discriminated to be brown rice G. Since the husk detector 62 is composed to have a limit switch and a husk sensing plate, whether the rice grains charged into the feeding hopper 14 are paddy M or brown rice G can be discriminated with an inexpensive constitution, and erroneous operation can be suppressed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an automatic rice milling apparatus for converting milled rice or brown rice into milled rice.

  As an automatic rice milling apparatus, there is one provided with a rice mill and a rice mill (see, for example, Patent Document 1).

  In this automatic rice milling apparatus, when the koji is supplied to the feeding hopper, the koji selection button is operated, so that the koji is supplied to the kneader, and after the kneading machine removes the koji, The unpolished rice is processed. On the other hand, when brown rice is supplied to the input hopper, the rice selection button is operated, so that the brown rice is supplied to the rice mill without going through the rice huller, and the rice is processed by the rice mill.

  Here, when brown rice is supplied to the input hopper but the misty selection button is operated, the brown rice is supplied from the rice huller to the rice mill. For this reason, the surface of the brown rice is forcibly rubbed by the detaching roll of the rice huller to roughen or crack the brown rice, and the quality of the finished white rice will deteriorate.

  On the other hand, if the rice selection button is erroneously operated despite the fact that the rice hopper is supplied to the feeding hopper, the rice bran is supplied directly to the rice mill without going through the rice huller. For this reason, the crushed swarf mixes in the finished white rice, and the smell of koji permeates into the white rice, which makes the white rice unfavorable.

  For this reason, recently, an automatic rice milling apparatus has been provided which is provided with a brown rice discriminating sensor for discriminating rice bran and brown rice in the feeding hopper so as not to make a mistake in pressing the fir tree selection button and the rice selection button.

  In this automatic rice milling apparatus, when the brown rice discriminating sensor detects that the rice bran has been supplied to the input hopper, the rice bran is automatically supplied from the rice grinder to the rice mill, while the brown rice is supplied to the input hopper. When the brown rice discriminating sensor detects this, the brown rice is automatically supplied to the rice mill without going through the rice huller.

  Here, as this brown rice discriminating sensor, there are a capacitance type sensor of Patent Document 2, a near infrared sensor of Patent Document 3, a photoelectric sensor, a line color sensor of Patent Document 4, and the like.

However, this brown rice discriminating sensor is expensive and sometimes malfunctions.
Japanese Patent No. 2675543 JP 2004-243321 A JP 2005-274184 A Japanese Patent No. 3192608

  In view of the above facts, an object of the present invention is to obtain an automatic rice milling apparatus that can reduce the cost of identification means and suppress malfunction of the identification means.

  The automatic rice milling apparatus according to claim 1 is driven by being supplied with an electric current, and is capable of supplying brown rice from the rice huller to debranze the supplied rice cake into brown rice, and the rice huller, A rice milling machine that treats the supplied brown rice to milled rice, a supply means that is capable of supplying rice bran or brown rice to the rice milling machine side and the rice milling machine side, and the supply means converts rice bran or brown rice When supplied to the hulling machine, the hulling machine detects at least one of the current value supplied to the hulling machine and the hulls removed by the hull removal process by the hulling machine. While identifying whether rice bran has been supplied or brown rice has been supplied to the rice huller, the supply means supplies the rice bran to the side of the rice huller when it is identified that rice bran has been supplied to the rice huller When the brown rice is identified as being supplied to the rice mill, the supply means supplies the brown rice to the rice mill. And that the identification means comprises a.

  In the automatic rice milling apparatus according to the first aspect, the rice bran supplied with the rice milling machine is depulverized into brown rice, and the brown rice supplied with the rice milling machine is processed with rice milling to make white rice.

  Here, when the supplying means is capable of supplying rice bran or brown rice to the rice mill side and the rice milling machine side, when the supplying means supplies rice bran or brown rice to the rice bran machine side, the identifying means Detects at least one of the current value supplied to the machine and the rice husk removed by the dehulling process of the rice huller to identify whether the rice was supplied to the rice huller or whether the brown rice was supplied to the rice huller To do.

  Further, when the identification means identifies that the rice bran has been supplied to the rice mill, the supply means supplies the rice bran to the rice mill and the brown rice from the rice mill is supplied to the rice mill. When the identification means recognizes that brown rice has been supplied to the machine, the supply means supplies the brown rice to the milling machine side.

  In this way, the identification means detects at least one of the current value supplied to the hulling machine and the hulls removed by the hull removal process by the hulling machine. For this reason, the identification means can be made inexpensive and the malfunction of the identification means can be suppressed.

  FIG. 1 is a schematic diagram showing the overall configuration of an automatic rice milling apparatus 10 according to an embodiment of the present invention. FIG. 2 is a front view of an operation unit of the automatic rice milling apparatus 10. Yes. FIG. 3 is a block diagram showing the configuration of the main part of the automatic rice milling apparatus 10.

  The automatic rice milling apparatus 10 includes an outdoor building 12 including an operation room 12A and a machine room 12B. On the front wall 13 of the operation chamber 12A, a tension hopper 14 as an input portion into which rice grains (raw rice M or brown rice G) as raw rice is input is provided in a state exposed to the operation chamber 12A. The tension hopper 14 has a built-in screw conveyor 15 for conveying rice grains, and is connected to an elevator 16 disposed in the machine room 12B. The elevator 16 can lift and convey the rice grains supplied to the tension hopper 14 and supplied by the screw conveyor 15 to the upper part of the machine room 12B.

  A switching valve 17 as a supply means is attached to the discharge port 16A provided at the upper end of the elevator 16. This switching valve 17 can change the supply direction of the rice grains by operating (switching). That is, the switching valve 17 transfers the rice grains lifted and transported by the elevator 16 to the grain mill 18 (the grain mill 18 side) or the stone remover 20 (the rice mill 22 side without the grain mill 18), which will be described later. Supply.

  On the side of the elevator 16 in the machine room 12B, a huller 18 as a detaching part is arranged corresponding to the discharge port 16A of the elevator 16. The hulling machine 18 is a roll type as in Patent Document 1 (Japanese Patent No. 2674543), and includes a pair of rubber rolls 19. The pair of rubber rolls 19 rotate in a direction in which the upper portions thereof are approached. As a result, rice grains (rice bran M or brown rice G) supplied from the upper side are sandwiched between the pair of rubber rolls 19 and the rice grains are subjected to a de-pulverization process (especially, rice cake M eliminates rice husk K (see FIG. 4)). To be brown rice G).

  In addition, this huller 18 may be an impact type (impact release type) huller (centrifugal release machine) as in other types, for example, Japanese Patent Application Laid-Open No. 2003-320262. . In this impact-type hulling machine, a plurality of rotary blades are provided in a substantially rotational radial direction on a detachment fan (emperor), and a cylindrical lining plate is provided on the outer periphery of the detachment fan. ing. Here, the rice grains (rice bran M or brown rice G) supplied to the detaching fan in a state where the detaching fan is rotated at a high speed are given a centrifugal force by the rotary blades and discharged radially (throwing). Is removed by the impact force that has collided with the lining plate (particularly, rice bran M is removed from rice husk K and converted into brown rice G).

  The hulling machine 18 (including the impact hulling machine) is provided with a wind selection chamber (not shown) as a wind selection section, and a downflow path and an intake path are branched into the wind selection chamber. It is provided in the state. The rice grains (brown rice G and rice husk K) after the defluxing process flow down to the downstream channel, and the rice husks K from the rice grains (brown rice G and rice husk K) that flow down the downstream channel flow into the intake channel by the intake air. By sucking in, the brown rice G and rice husk K are selected.

  As shown in FIG. 4, a rice husk detector 62 as an identification means is provided in a portion through which the rice husk K passes in the upper part of the intake passage. The rice husk detector 62 is provided with a limit switch 64 as an identification unit, and a flat rice husk sensing plate 66 as a detection unit is rotatably attached to the limit switch 64 at the upper end. The rice husk sensing plate 66 is a perforated plate or net having many holes and has air permeability. The rice husk sensing plate 66 allows the intake air in the intake passage to pass therethrough while the rice husk K in the intake passage is Collide without passing.

  For this reason, when the rice grain introduced into the tension hopper 14 and supplied to the rice huller 18 is cocoon M, the rice husk K sucked by the intake air collides with the rice husk sensing plate 66, and the rice husk sensing plate When 66 is swung, the limit switch 64 detects the swing of the rice husk sensing plate 66 and detects the collision of the rice husk K with the rice husk sensing plate 66. Thereby, when the rice husk K is detected, it is identified that the rice grain that has been put into the tension hopper 14 and supplied to the rice huller 18 is rice bran M.

  On the other hand, when the rice grain that has been put into the stretcher hopper 14 and supplied to the rice huller 18 is brown rice G, the rice husk K does not collide with the rice husk sensing plate 66 and the rice husk sensing plate 66 does not swing. Thus, the limit switch 64 does not detect the swing of the rice husk sensing plate 66 and does not detect the collision of the rice husk K with the rice husk sensing plate 66. Thereby, the rice husk K is not detected, and it is identified that the rice grain that has been put into the filling hopper 14 and supplied to the rice huller 18 is brown rice G.

  A stone punching machine 20 is arranged on the side of the hulling machine 18 and corresponds to the discharge port 18A of the hulling machine 18. For this reason, the brown rice G after passing through the hulling machine 18 is supplied to the stone removing machine 20. The stone remover 20 is also connected to the switching valve 17 described above, and when the switching valve 17 is operated, the rice grains lifted and conveyed by the elevator 16 are directly (not via the hulling machine 18). In) can be received.

  Further, a rice milling machine 22 as a rice milling unit is disposed in the machine room 12B, and the brown rice G after passing through the stone removing machine 20 is supplied. The rice milling machine 22 is a vertical cylindrical friction type equipped with a milling roll, and can process the rice milling of the brown rice G. The milled rice portion may be of other types, for example, a horizontal cylindrical type, a circulating type having a circulation mechanism, or a grinding type having a rugged grindstone roll.

  A rice bran collecting machine 24 is disposed on the side of the rice milling machine 22 so that rice bran generated during the rice milling process can be collected and accumulated in the rice bag 25. The bag 25 can be freely replaced.

  Further, on the downstream side of the rice milling machine 22, a rice milling machine 38 is arranged corresponding to the discharge port 22A of the rice milling machine 22. This milling machine 38 further sharpens the polished rice H (milled rice) after it has been processed by the milling machine 22 to remove the flour adhering to the surface of the polished rice H, so that the so-called simple washing-free rice KM that is glossy and clean. (White rice that can be cooked simply by lightly washing with water). Various types of grinders can be used as the polishing machine 38, but if it is of a dry type, a friction type that performs the polishing process by polishing between white rice or a polishing process using a brush. Even if it is the type of the brush type to perform, it is applicable.

  Further, the soot powder removed by the rice polishing machine 38 is collected by the above-described soot collecting machine 24 and accumulated in the soot bag 25.

  On the other hand, an elevator 42 is erected corresponding to the discharge port 38A of the simple washing-free rice KM that has been polished by the polishing machine 38. The elevator 42 can lift and convey the simple unwashed rice KM taken out from the discharge port 38A of the rice polishing machine 38 to the upper part of the machine room 12B.

  Further, a pulverized particle sorter 44 is disposed corresponding to the discharge port 42A provided in the upper part of the elevator 42, and is disposed immediately above the accumulation tank 26 described later.

  In addition, the accumulation tank 26 is disposed on the front wall 13 of the operation chamber 12A corresponding to the discharge basket 44A of the pulverized particle sorter 44 with the accumulation tank 26 exposed to the operation chamber 12A. The accumulation tank 26 is provided with a discharge basket 44A, and the accumulation tank 26 can accumulate the simple unwashed rice KM after the rice milling process and the rice polishing process in the bag 27.

  On the other hand, an operation panel 28 is disposed above the tension hopper 14 of the front wall 13 of the operation chamber 12A. As shown in FIG. 2, a coin amount identifying unit 30 and a card power identifying unit 32 are provided on the left side of the operation panel 28. The coin amount identifying unit 30 is provided with an insertion slot 34 opened in the operation panel 28, and a predetermined coin (for example, a 100 yen coin) can be inserted, and can be identified. On the other hand, the card frequency identification unit 32 is provided with an insertion slot 36 opened in the operation panel 28, and a predetermined card (for example, a so-called closed type prepaid card) can be inserted and can be identified. The coin amount identifying unit 30 and the card power identifying unit 32 are connected to a control device 50 described later.

  A whiteness selection button 49 for selecting the whiteness of the rice grain is provided on the right side of the operation panel 28. The whiteness selection button 49 includes an upper white button 49A, a standard button 49B, and a 7 minute button 49C. The upper white button 49A, the standard button 49B, and the 7 minute button 49C are respectively connected to the control device 50 described later. It is connected.

  As shown in FIG. 3, the control device 50 includes a central processing unit (CPU) 52, a read-on memory (ROM) 54, a random access memory (RAM) 56, an input port 58, and an output port 60. Yes. The input port 58 is connected to the coin amount identifying unit 30, the card power identifying unit 32, the whiteness selection button 49, and the limit switch 64 of the rice husk detector 62. On the other hand, the output port 60 includes a screw conveyor 15 of the tension hopper 14, an elevator 16, a switching valve 17, a rice huller 18, a stone remover 20, a rice milling machine 22, a rice milling machine 38, an elevator 42, and a granule sorter. 44 drive motors are connected to each other. The ROM 54 also includes initial state setting information of the automatic rice milling apparatus 10, predetermined time information (predetermined value of the expiration operation time of the automatic rice milling apparatus 10) required for rice milling by the rice milling machine 22, and a predetermined operation program. Is stored, and the CPU 52 controls each of the drive units in accordance with the operation program. On the other hand, in the RAM 56, time information (in other words, time information required for the rice milling process) according to the amount paid to process the rice grains by the rice milling machine 22 is written by the CPU 52. When the rice milling process is performed by the rice milling machine 22, each drive unit is controlled while always referring to the time information required for the rice milling process written in the RAM 56.

  Further, the control device 50 has a timer function, and when executing the rice milling process by the rice milling machine 22, the CPU 52 refers to the time information required for the rice milling process in the RAM 56 and actually performs the rice milling process of the rice grains by the rice milling machine 22. The operation time (the operation time of the automatic rice milling apparatus 10) is constantly measured, and when the time required for the rice milling process has elapsed, the rice milling process of the rice grains by the rice milling machine 22 is terminated by the instruction of the CPU 52 ( The operation of the automatic rice milling apparatus 10 expires).

  Next, the operation of the present embodiment will be described.

  When using the automatic rice milling apparatus 10 having the above-described configuration, the rice bran M or the brown rice G is inserted into the tension hopper 14 and the coin is inserted into the insertion slot 34 of the coin amount identifying unit 30 or the card is identified with the card frequency. Insert into the insertion port 36 of the part 32. Next, when any one of the upper white button 49A, the standard button 49B, and the 7-minute button 49C is operated, the screw conveyor 15, the elevator 16, the grinder 18, the stone remover 20, the rice mill 22, current is supplied to each drive motor of the rice polishing machine 38 and the elevator 42 (a drive motor of a pair of rubber rolls 19 (a blower fan for an impact-type hulling machine) in the hulling machine 18) and the respective driving. By operating the motor, the operation of the automatic rice milling apparatus 10 is started.

  When the operation of the automatic rice milling apparatus 10 is started, the rice bran M or brown rice G fed into the stuffing hopper 14 is supplied to the rice grinder 18 by the screw conveyor 15, the elevator 16 and the switching valve 17 for a predetermined time ( A few seconds).

  Here, when the rice husk detector 62 provided in the wind selection chamber of the rice huller 18 detects the rice husk K, the rice grains that have been put into the filling hopper 14 and supplied to the rice huller 18 are rice cake M. Is identified. Thereby, the rice bran M thrown into the tension hopper 14 is continuously supplied to the rice huller 18 through the switching valve 17 and is subjected to the de-pulling process, so that the brown rice G after the de-pulping process is stoned. Supplied to the punching machine 20 and removed.

  On the other hand, when the rice husk detector 62 does not detect the rice husk K, it is identified that the rice grain that has been put into the tension hopper 14 and supplied to the rice huller 18 is brown rice G. Thereby, when the switching valve 17 is operated (switched), the brown rice G put into the tension hopper 14 is supplied to the stone removing machine 20 without passing through the hulling machine 18 and is stoned.

  The rice grain (brown rice G) that has been stoned by the stone removing machine 20 is further supplied to the rice milling machine 22. In the rice mill 22, the rice milling of the brown rice G is performed. The rice bran generated during the rice milling process by the rice milling machine 22 is collected by the rice bran collecting machine 24 and accumulated in the rice bran bag 25.

  Further, the white rice H polished by the rice mill 22 is supplied to the rice mill 38, and the sugar powder adhered to the surface of the white rice H is removed by the rice mill 38, so that the glossy, clean, simple Washed rice KM (white rice that can be cooked just by washing lightly with water).

  Furthermore, the simple non-washed rice KM processed by the rice polishing machine 38 is lifted and conveyed by the elevator 42 and supplied to the crushed grain sorting machine 44. In this case, the crushed particles (not shown) are also supplied to the crushed particle sorter 44 together with the simple washing-free rice KM. Further, when the rice mill 38 is operated repeatedly, the jade balls (not shown) which are lumps of sugar powder that can no longer be removed by the rice mill 38 are used together with the simple washing-free rice KM and the crushed particles. Supplied to.

  In the crushed grain sorter 44, the simple washed rice KM from which the polished rice and crushed grains are removed from the simple washed rice KM that has been subjected to the rice milling and polishing process, (Simple unwashed rice that can be cooked without stickiness due to the flow of starch granules) KM.

  This good quality delicious simple wash-free rice KM is sent to the accumulation tank 26 from the discharge basket 44A of the granule sorter 44, accumulated in the bag 27, and provided to the user.

  The above steps are sequentially performed, and the rice milling process by the rice milling machine 22 is stopped after a predetermined time (time required for the rice milling process of the rice grains by the rice milling machine 22) has elapsed according to the inserted coins or inserted cards.

  Here, depending on whether the rice husk detector 62 configured to include the limit switch 64 and the rice husk sensing plate 66 detects the rice husk K in the rice huller 18, the rice grains put into the stuffing hopper 14 are detected. Identifies whether it is 籾 M or brown rice G. For this reason, it is possible to identify whether the rice grains put into the filling hopper 14 are the rice bran M or the brown rice G with a relatively simple and reliable and inexpensive configuration. Furthermore, the limit switch 64 is a device that has been used for a long time and can suppress malfunction.

  In the present embodiment, the rice husk detector 62 is used as the identification means of the present invention. However, the current sensor may be used as the identification means of the present invention. The same effect can be achieved.

  In this case, the current sensor is connected to a drive motor that drives the pair of rubber rolls 19 of the hulling machine 18, and the current sensor can detect a current value supplied to the drive motor, and can also control the control device. 50 input ports 58 are connected.

  Here, when the rice grain that has been put into the tension hopper 14 and supplied between the pair of rubber rolls 19 of the hulling machine 18 is cocoon M, the current sensor detects a relatively large current value. As a result, it is identified that the rice grain that has been put into the tension hopper 14 and supplied between the pair of rubber rolls 19 of the huller 18 is the rice bran M.

  On the other hand, when the rice grain that has been fed into the stretcher hopper 14 and supplied between the pair of rubber rolls 19 of the rice huller 18 is brown rice G, the current sensor has a relatively small small current value (about the above large current value). 1/2 value) is detected. As a result, it is identified that the rice grain that has been introduced into the tension hopper 14 and supplied between the pair of rubber rolls 19 of the rice huller 18 is brown rice G.

  Further, in the impact-type hulling machine, the current sensor is connected to a drive motor that drives the removing fan of the hulling machine, and the current sensor can detect the current value supplied to the drive motor. At the same time, it is connected to the input port 58 of the control device 50.

  Here, when the rice grain that has been put into the tension hopper 14 and supplied to the detaching fan of the rice huller is rice bran M, the current sensor detects a relatively large large current value. As a result, it is identified that the rice grain that has been put into the tension hopper 14 and supplied between the pair of rubber rolls 19 of the huller 18 is the rice bran M.

  On the other hand, when the rice grain that has been fed into the tensioning hopper 14 and supplied to the detaching fan of the rice huller is brown rice G, the current sensor has a relatively small small current value (about 2/3 of the large current value). ). Thereby, it is identified that the rice grain that has been put into the tension hopper 14 and supplied to the detaching fan of the rice huller is brown rice G.

It is a schematic diagram which shows the whole structure of the automatic rice milling apparatus which concerns on embodiment of this invention. It is a front view of the operation panel of the automatic rice milling apparatus which concerns on embodiment of this invention. It is a block diagram which shows the principal part of the automatic rice milling apparatus which concerns on embodiment of this invention. It is a side view which shows the chaff detector of the automatic rice milling apparatus which concerns on embodiment of this invention.

Explanation of symbols

10 Automatic rice milling equipment 17 Switching valve (supply means)
18 Rice huller 22 Rice miller 62 Rice husk detector (identification means)
M rice cake (raw rice)
G Brown rice (raw rice)
K rice husk H white rice (milled rice)

Claims (1)

A rice huller that is driven by electric current and removes the supplied rice cake into brown rice,
A rice milling machine that is capable of supplying brown rice from the rice huller and processing the supplied brown rice to milled rice,
Supply means capable of supplying rice bran or brown rice to the side of the rice mill and the side of the rice mill;
When the supply means supplies rice bran or brown rice to the side of the rice huller, it detects at least one of the current value supplied to the rice huller and the rice hulls excluded by the rice hull removal process. Then, by identifying whether rice bran is supplied to the rice huller or whether brown rice is supplied to the rice huller, the supply means determines that the rice bran is supplied to the rice huller. An identification means for supplying brown rice to the rice mill side when the supply means identifies that brown rice has been supplied to the rice mill while the brown rice is supplied to the rice mill
Automatic rice milling equipment equipped with.

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