JP2010012380A - Rice polishing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem associated with a rice polishing apparatus arising upon carrying out a normal rice polishing treatment even if a small amount of rice particles is fed into its feed hopper, the problem that the rice particles remaining in its transporting device is fed to its polishing device and is discharged as unpolished rice, after the rice particles in its storage hopper is used up. <P>SOLUTION: The rice polishing apparatus includes a feed hopper (1) for feeding rice particles, a sending-out means (2) for sending out the supplied rice particles according to a predetermined amount, transporting means (3), (7) for transporting the rice particles sent out of the sending-out means (2), a rice polishing device (10) for polishing the rice particles transported by the transporting means (3), (7), a storage hopper (8) disposed in the process preceding the rice polishing device (10), detection means (15), (16) for detecting the amount of rice particles fed into the feed hopper (1), and a means (17) for delaying the timing of starting the polishing operation to be performed by the rice-polishing device (10) if the amount of rice particles fed into the feed hopper is not larger than a preset amount. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to rice milling equipment.

There is known a rice milling facility that delays and controls the timing of starting the rice milling machine so that the processed rice in the rice milling tank does not run out before the remaining rice in the stone removal machine by the residual rice recovery operation reaches the rice milling tank (for example, , See Patent Document 1).
Japanese Patent No. 3748780

  An object of the present invention is to further improve the accuracy of delay control in the above cited reference.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the present invention described in claim 1 conveys the feeding hopper (1) for feeding the grain, feeding means (2) for feeding the inputted grain by a predetermined amount, and the grain fed by the feeding means. Conveying means (3), (7), a rice milling apparatus (10) for milling the grains conveyed by the conveying means, a storage hopper (8) provided in a pre-process of the rice milling apparatus, and a charging hopper (1) Grain amount detection means (15), (16) for detecting the amount of input grain, and the timing of the rice milling process start of the rice milling apparatus (10) when the amount of grain input to the input hopper is equal to or less than the set amount Is provided with a delay time setting means (17), and in the input hopper (1), the presence / absence detection sensors (15) and (16) for detecting the input of the grains are arranged in the upper and lower stages. Provided, both upper and lower grain presence detection sensors (15), (16) are both ON. In the case where the start processing of the rice milling apparatus (10) is controlled with a normal set time, and the lower grain presence / absence detection sensor (16) is ON and the upper grain presence / absence detection sensor (15) is OFF, the rice milling apparatus (10) It is characterized by controlling the processing by delaying the timing of the rice milling process start from the usual time.

In short, according to the present invention of claim 1, since there is no residual grain in a state where there is a grain in the storage hopper, discharge of insufficiently refined grain can be prevented.
In addition, it is possible to perform control that delays the timing of starting the rice milling process of the rice milling apparatus with a simple configuration.

  Furthermore, according to the invention of claim 2, since the delay time is varied according to the input amount of the grain, it is possible to perform the whitening process with high accuracy.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a process diagram of the rice milling equipment. The brown rice put into the feeding hopper 1 is fed to the first elevator 3 by the first rotary valve 2 and supplied from the first elevator 3 to the stone removing device 4. Has been processed. Then, the stone removed by the stone removal device 4 is supplied to the second elevator 7 through the normal brown rice passage 5 and the stone removal residual rice process passage 6, and the storage hopper (brown rice tank) 8 in the second elevator 7. It is conveyed to. The brown rice stored in the storage hopper 8 is sequentially fed to the rice milling device 10 by the second rotary valve 9, subjected to whitening treatment by the compression plate 11 of the rice milling device, and discharged to the white rice tank 12.

  The input hopper 1 is provided with grain (brown rice) amount detecting means 15 and 16 for detecting the amount of input grain (brown rice), and when the amount of brown rice input to the input hopper 1 is equal to or less than a set amount, The control unit 18 is provided with a delay time setting means 17 for delaying the timing of the rice milling process start of the rice milling apparatus 10.

  The brown rice amount detection means comprises a high (H) level grain presence / absence detection sensor 15 and a low (L) level grain presence / absence detection sensor 16 for detecting that brown rice is introduced into the charging hopper 1. When the upper and lower grain presence / absence detection sensors 15 and 16 are both ON, the start processing of the rice milling apparatus 10 is controlled with a normal set time, and the lower stage When the grain presence / absence detection sensor 16 is ON and the upper grain presence / absence detection sensor 15 is OFF, the rice milling apparatus 10 is configured to control the processing with a delay from the usual timing for starting the rice milling process.

  The delay time setting means 17 for starting rice milling delays the timing of the rice milling process start of the rice milling apparatus 10 from the usual when the lower grain presence / absence detection sensor 16 is ON and the upper grain presence / absence sensor 15 is OFF. A variable means 17a is provided for varying the time for the first rotary valve 2 based on the time from when the first rotary valve 2 starts to be turned off until the lower grain detection sensor 16 is turned off.

  Of the selection button switches (upper white switch 13a, standard switch 13b, 8-minute switch c) 13 for selecting brown rice into the input hopper 1 and charging the fee into the charge inlet and selecting the degree of whitening, for example, “upper white” And the upper white switch 3a is pressed, the first rotary valve 2, the first elevator 3, the stone removing device 4 and the second elevator 7 are driven based on the detection result of the charge input detection means 14 by the charge input. To start. When the upper and lower grain presence / absence detection sensors 15 and 16 in the charging hopper 1 are both ON, the second rotary valve 9 and the rice milling apparatus 10 start to drive in the normal set time, and the lower grain When the grain presence / absence detection sensor 16 is ON and the upper grain presence / absence detection sensor 15 is OFF, the second rotary valve 9 and the rice milling apparatus 10 start driving after a predetermined delay time has elapsed. Here, at the initial stage of milling, the pressing plate 11 of the rice milling apparatus 10 is closed to perform the milling process, and after a predetermined time has elapsed, the pressing plate 11 is opened and the milled rice is discharged into the white rice tank 12.

  Next, when the lower grain presence sensor 16 detects OFF and no grain is present, the first rotary valve 2 is stopped after a predetermined time has elapsed, and the second rotary valve 9 and the rice milling apparatus 10 are stopped when a predetermined time has elapsed. To do. In addition, while the 2nd rotary valve stops after the 1st rotary valve 2 stops, the stone removal residual rice discharge shutter 19 opens and performs a residual rice process, the 1st elevator 3, the stone removal apparatus 4, 2nd The elevator 7 stops.

  Conventionally, the rice milling machine is activated on the condition that there is brown rice in the storage hopper at the top of the rice milling machine, but if the amount of brown rice to be used is not constant like an unmanned rice milling machine, the capacity difference between input and rice milling The amount accumulated in the storage hopper varies depending on the amount brought in. For this reason, when a small amount of rice is milled, the remaining rice processing time is insufficient, and the rice milling apparatus runs idle, which adversely affects performance. Therefore, when starting the rice milling device in a coin rice mill, it is necessary to first grasp the amount of user's input. For example, the amount is determined by the number of coins inserted. This can be solved by delaying the start timing of the rice milling apparatus.

For example, with a basic 30 kg of 300 yen, the rice milling apparatus is normally activated with a delay of 20 seconds, but with a small amount of use, a delay of +10 seconds is performed with -100 yen.
Example: When using 200 yen, the delay is 30 seconds, 20 seconds + 10 seconds.
Example: When using 100 yen, it is delayed for 20 seconds + 10 seconds x 2 40 seconds.

  As shown in FIG. 4 and FIG. 5, when brown rice is put into the feeding hopper (early rice initial stage), the upper grain presence sensor 15 (H) and the lower grain presence sensor 16 (L) are both turned off. If the amount is less than 3kg (see Fig. 4a), it will be treated as the minimum amount and rice milling will be impossible.

  When the upper sensor 15 is OFF and the lower sensor 16 is ON (see FIG. 4B), a conditional operation of 3 kg or more and less than 5.5 kg is performed. Then, the rotary valve is activated based on such conditions, and the rice milling apparatus is typically activated with a delay of 25 seconds after the rotary valve is activated. In addition to this, the ON / OFF of the lower sensor 16 is activated after a delay of 25 seconds. When the OFF state is confirmed and the lower sensor 16 is ON, the start delay time of the rice milling apparatus is set to 30 seconds (at least 20 seconds) after starting the rotary valve. If the lower sensor 16 is OFF 25 seconds after the rotary valve is started, the start delay time of the rice milling device is set to the maximum loss time (maximum loss: remaining rice discharge time of the stone removing device + After the elapse of 40 seconds, the rice milling apparatus is started.

  When both the upper sensor 15 and the lower sensor 16 are ON (see FIG. 4C), the conditional operation is 6 kg or more. When the sensor 15 is ON with a delay of 25 seconds after starting the rotary valve, normal operation is performed. When the sensor 15 is OFF and the sensor 16 is ON 25 seconds after starting the rotary valve, the delay time is 30 seconds after starting the rotary valve. (Minimum 29 seconds). If the sensor 15 is OFF and the sensor 16 is OFF 25 seconds after the rotary valve is started, the rice milling apparatus is started 40 seconds after the sensor 16 is turned OFF.

  When the upper sensor 15 is OFF and the lower sensor 16 is ON, and the measured value is 2 kg or more and less than the measured value kg (see FIG. 5D), the operation is conditional. If the sensor 16 is ON 25 seconds after the rotary valve is activated, it does not exist. If the sensor 16 is OFF 25 seconds after the rotary valve is activated, the rice milling apparatus is activated 40 seconds after the sensor 16 is turned off.

  Conditional operation is also performed when both the upper sensor 15 and the lower sensor 16 are ON and the measured value is not less than kg (see FIG. 5E). When the sensor 15 is ON 25 seconds after the rotary valve is activated, normal operation is performed. When the sensor 15 is OFF and the sensor 16 is ON 25 seconds after the rotary valve is activated, the delay time is 30 seconds (minimum) after the rotary valve is activated. 29 seconds). If the sensor 15 is OFF and the sensor 16 is OFF 25 seconds after the rotary valve is started, the rice milling apparatus is started 40 seconds after the sensor 16 is turned OFF.

  The lower grain presence / absence detection sensor 16 can be configured to detect brown rice using a low-sensitivity sensor, and the upper grain presence / absence detection sensor 15 can distinguish between straw and brown rice by using a high-sensitivity sensor. Can be.

As shown in FIG. 7, in the coin milling machine that can bring back the brown rice of the throwing hopper, the throwing hopper 1 is equipped with an empty (empty detection) sensor A and a rice milling possible (minimum capacity detection) sensor B as shown in FIG. The following detection control may be performed using the two sensors A and B. That is, (1) Rice milling initial stage: When the empty sensor A is ON, it is detected that the necessary minimum amount of milled rice is secured.
(2) When the charge is out: When the rice milling possible sensor B is ON, it is detected that the necessary minimum amount of milled rice is secured.
(3) When finished: Empty sensor A is OFF and the milling finish condition is satisfied.

This is a configuration in which the remaining rice is discharged every time (even if brown rice remains in the hopper) with the above three requirements.
Note that 1 in FIG. 7 indicates a normal sticking state, and 2 in FIG. 7 is discharged while remaining on the slope with the most gentle angle at the time of discharging, and a minimum amount of 3 kg of polished rice is secured by the B sensor ON.

In FIG. 7, when a small amount is added, a minimum amount of 3 kg of polished rice is secured by turning ON the A sensor. In FIG. 7, the minimum amount is not ensured even though the A sensor is turned on due to out of charge.
Also, when the charge is expired, if the empty sensor A is ON and the rice milling possible sensor B is OFF, that is, if the minimum necessary amount of rice polishing cannot be secured, the coin mech is prohibited from being accepted. Make it available. According to this, when the necessary minimum amount of polished rice cannot be ensured, no coins are accepted and no malfunction occurs.

  Furthermore, when the price is out of service and rice sensor A is ON and empty rice sensor B is also ON, rice milling is possible. After the rotary valve is activated and before rice milling device B is turned off, rice milling device is activated. The rice milling device is started after discharging the remaining rice from the stone removal device. Even if the minimum amount can be secured, if the amount is small, the milling machine will continue to idle during the discharge time of the stone removal device, and the degree of milling during that time will be significantly different from the user's wish, but it could be solved by the above configuration .

  A coin milling machine that can use four types of coin mech can be configured so that the price can be set by inserting a coin into the coin mech. Conventionally, since the number of keys is limited from the set cost by the key operation of the data printer that controls the coin mech, it is complicated and troublesome. In this example, it is simple because only the coin is inserted and the setting is read.

  It is also possible to implement a coin milling machine that can issue receipts or coins or cards. That is, one coin or card can be issued for each unit price of the coin rice mill. According to this, it is convenient to leave the evidence used and enable the next discount.

Process diagram of rice milling equipment Control block circuit diagram flowchart Side view of the loading hopper showing the operation state of the grain presence / absence detection sensor ((A) to (C)) Same side view ((d) to (e)) Comparison of supply and rice milling capacity Side view of the charging hopper showing the operating state of the empty sensor and the rice milling enabled sensor

Explanation of symbols

1 Feeding hopper 2 First rotary valve (feeding means)
3 First elevator (conveying means)
7 Second elevator (conveying means)
8 Storage hopper 9 Second rotary valve (feeding means)
10 Rice milling device 15 Grain presence / absence detection sensor (grain amount detection means)
16 Grain presence / absence detection sensor (grain amount detection means)
17 Rice milling delay time setting means

Claims (2)

A feeding hopper (1) for feeding the grain, a feeding means (2) for feeding the inputted grain by a predetermined amount, and a conveying means (3), (7) for feeding the grain fed by the feeding means; , A rice milling apparatus (10) for milling the grain conveyed by the conveying means, a storage hopper (8) provided in a pre-process of the rice milling apparatus, and a grain for detecting the quantity of the grain charged into the charging hopper (1) A delay time setting means (17) for delaying the timing of the rice milling process start of the rice milling device (10) when the amount of grain detection means (15), (16) and the amount of grain put into the feeding hopper is equal to or less than the set amount. Provided,
The feeding hopper (1) is provided with a grain presence / absence detection sensor (15), (16) for detecting that the grain has been thrown into the upper stage and the lower stage, and the upper and lower grain presence / absence detection sensors (15 ), (16) are both ON, the start process of the rice milling apparatus (10) is controlled by a normal set time, and the lower grain presence / absence detection sensor (16) is ON and the upper grain presence / absence detection sensor ( 15) A rice milling facility characterized in that when the rice milling apparatus (10) is OFF, the rice milling process (10) is controlled with a delay in the timing of starting the rice milling process.   When the lower grain presence / absence detection sensor (16) is ON and the upper grain presence / absence detection sensor (15) is OFF, the feeding means (2) feeds the time for delaying the timing of the rice milling processing start of the rice milling apparatus from the normal time. The rice milling facility according to claim 1, further comprising variable means (17a) that varies depending on the time from the start until the lower grain detecting sensor (16) is turned off.

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