JPS63223484A - Cereal drier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a grain drying apparatus for drying grain using drying air.

[Conventional technology and problems]

In order to dry grain, a circulating grain drying device is used, which circulates and flows the grain within the machine while supplying drying air to dry the grain.

In this type of grain drying device, a grain flow path is formed between an air guide path and an air exhaust path that are partitioned by opposing air-permeable partition walls. The grain loaded in the grain drying device is allowed to flow down naturally in this grain flow path, while drying air is supplied to dry the grain.

This conventional grain drying apparatus has a built-in microcomputer for drying processing. At the beginning of the drying process, when the type of grain (paddy, beer barley, barley, wheat) and amount of grain are set using dials or buttons, this microcomputer takes into account the outside temperature and uses the microcomputer's read-only memory ( Hot air temperature control is automatically performed according to a drying program stored in a ROM.

Furthermore, depending on the type of grain that has been set, a moisture conversion is automatically performed in which the electrical resistance value of the grain is measured and the water content is converted from the measured value.

Therefore, by setting the moisture setting dial to the target moisture content, the operation can be automatically stopped when the moisture content of the grain becomes equal to the target moisture content.

Furthermore, the drying loss rate is calculated from the measured moisture content, and based on this, overspeed drying prevention control is automatically performed.

Furthermore, some models allow the grain circulation speed within the grain drying device to be changed.

In this way, in conventional grain drying equipment, once multiple conditions (grain type, amount of grain, etc.) are set to desired values, the drying process is carried out according to the drying process program stored in the ROM of the built-in microcomputer. It has become so.

By the way, even among the same types of grains, there are grains that dry easily and grains that are difficult to dry depending on the variety or region, and it is necessary to dry the grains under conditions suitable for the variety of grain or under conditions suitable for each region. There is a need to. Furthermore, even if the grains are of the same type and variety, it is desirable to dry them under optimal conditions for each individual grain, such as having different proportions of immature grains depending on the crop of the year. In particular, regarding the air volume and temperature of the drying air, the quality of the grains will not be impaired if the drying air volume and temperature are changed to low-temperature, large-volume air at the beginning of drying and high-temperature, small-volume air at the end of drying, or conversely, high-temperature, large-volume air at the beginning of drying, and low-temperature, small-volume air at the end of drying. Although it has been confirmed through experiments that the drying method can be used for drying, it is desirable for the user to be able to freely select the method according to his or her preference.

Furthermore, since the conversion rate when converting the moisture content from the electrical resistance value of grains differs depending on the variety of grains, it is desirable that this conversion program can also be set freely.

In this respect, in conventional grain drying equipment, the stored drying processing program is one type of average determined from various conditions, and the storage section of the computer system is provided in the main body of the grain drying equipment. Since it is fixed to the control circuit board and cannot be easily replaced, there is a problem that general users cannot arbitrarily select or easily change the drying program according to conditions suitable for the region or grain variety. there were. Furthermore, manufacturing grain drying equipment for each region or grain type, or preparing multiple types of ROMs storing different drying processing programs and making them removable from the main body of the grain drying equipment would result in high costs. It ends up.

The present invention takes the above-mentioned facts into consideration, and aims to provide a grain drying apparatus that allows easy input of optimal data depending on the grain to be dried, and thereby allows changing drying control.

[Means for solving problems]

The grain drying device according to the present invention is a grain drying device that is equipped with a control device that dries grain by automatically changing drying control according to input data, converts the data into a barcode, and converts the data into a barcode. A barcode reader is installed to read the code and input it to the control device.

[Effect]

In the grain drying apparatus configured as described above, the barcode is read by the barcode reader, and the data is manually input to the control device. Therefore, by storing a drying processing program that can be changed according to data such as the grain type region or crop pattern, and converting this data into barcodes, reading this and inputting it to the control device, the optimal drying process according to the grain to be dried can be carried out. Drying conditions can be controlled.

〔Example〕

FIG. 1 shows an overall perspective view of a grain drying apparatus 10 according to an embodiment of the present invention, and FIG. 2 shows an enlarged perspective view of the main part of FIG. Further, FIG. 3 shows a schematic cross-sectional view of the grain drying apparatus 10.

The upper part of the grain drying device 10 is a grain tank 12 in which grain can be stored. A grain amount sensor 13 is disposed within the grain tank 12 to detect the amount of grain stored.

Furthermore, a grain temperature sensor 14 is disposed within the grain tank 12 to detect grain temperature.

A drying section 15 is provided below the grain tank 12. An air guide path 16 is formed in the drying section 15 by an air-permeable partition wall, so that drying air can be sent to the grains in the drying section 15. A burner 18 is arranged on the front side of the air guide path 16, and a suction exhaust fan 20 is arranged further on the rear side.

Therefore, the drying air generated by the burner 18 is sucked by the suction exhaust fan 2o and sent to the air guide path 16, and after absorbing the moisture of the grain in the drying section 15, it is passed through the suction exhaust fan 2o to the grain drying device. 1o It is designed to be discharged outside. Further, temperature sensors 22 and 24 are arranged inside the air guide path 16 and behind the suction/exhaust fan 2o, respectively, so as to be able to detect the temperature of the hot air and the temperature of the exhaust air.

A shutter drum 26 is disposed below the drying section 15, and is configured to send out the grains in the drying section 15 downward. A lower screw conveyor 28 is disposed below the shutter drum 26, and is capable of conveying the grain fed out by the shutter drum 26 to the front side of the grain drying device 10.

A bucket conveyor 3o is installed upright at the end of the lower screw conveyor 28 in the conveying direction, and the grain is transferred to the grain drying device 1.
It is possible to carry it up to the top of 0. One end of an upper screw conveyor 32 corresponds to the upper end of the packet conveyor 3o, and a rotary equalizer 34 is disposed at the other end of the upper screw conveyor 32. For this reason, the lifted and conveyed grains are conveyed to the center of the grain drying device 10 by the upper screw conveyor 32, and then distributed evenly into the grain tank 12 by the rotary equalizer 34.

A moisture sensor 36 is disposed at the lower end of the bucket conveyor 30 to detect the moisture content of the grain.

Further, an outside air temperature sensor 35 and a humidity sensor 37 are arranged in the grain drying apparatus 10 so that they can each detect outside air conditions.

Now, a grain dryer control circuit is disposed within the control panel 38 on the front side of the grain dryer 10. As shown in FIG. 4, the control circuit includes a storage section 40, a central processing unit (CPU) 44, an input circuit 46, an output circuit 48, and a bus connecting these.

The storage unit 40 includes both read-only memory (ROM) and random access memory (RAM).

The ROM stores a basic drying processing program that controls the hot air temperature, air volume, circulation speed, and operation pattern of the grain drying device, and determines the moisture conversion rate. This basic drying processing program can be applied to different types of grains (paddy, barley, wheat,
(beer barley, etc.), varieties (non-glutinous rice, glutinous rice, etc.), amount of rice,
The control content can be changed by inputting data such as hot air temperature and circulation speed, which are determined according to the region and crop (immature grain contamination rate).

Among these data, data such as hot air temperature and circulation speed, which are determined according to the type of grain and the amount of grain loaded, are stored in the control panel 38.
Settings are made using a grain switching dial 39 and a loading amount dial 41 arranged in the table, and data corresponding to the set values are automatically input.

Furthermore, a plurality of types of data such as hot air temperature and circulation speed determined depending on grain variety, region, and crop are stored in coded form. For example, as shown in Table 1, if the hot air temperature is 10% for non-glutinous rice grown in the Hokkaido region and the percentage of immature grains is 10%, then if the optimum hot air temperature is 60'C, then this data of 60°C is the code. It is stored as number r0002J, and regarding the circulation speed, if the percentage of immature grains is 15% in non-glutinous rice grown in the Tohoku region, the optimum circulation speed is 1.
If it is time/one cycle, this data of one hour/one cycle is stored as code number rl103J. Similarly, data regarding air volume, operation pattern, and moisture conversion rate are coded and stored according to variety, region, and crop.

Each of these coded data is further displayed as a barcode, and is prepared as a barcode collection or a barcode label collection. Therefore, the user can select a barcode corresponding to desired data depending on the grain to be dried.

Backup power is supplied to the RAM.
The memory in RAM can be saved as is.

The output circuit 48 is connected to a relay circuit 50 for a drive device such as a motor for driving the suction/exhaust fan 20 or a motor for driving the shutter drum 26 . The input circuit 46 is connected to each of the various sensors described above, and is further connected to a receiver 52. This receiver 52 is placed in front of the control panel 38 and is capable of receiving radio wave signals from the barcode reader 54 and supplying the signals to the input circuit 46.

As shown in FIG. 5, the barcode reader 54 includes a light source 56,
It has a built-in lens 58, and is further connected to a sensor 60, a decode 62, and a transmitter 64. The barcode reader 54 reads the barcode 66, converts the code number into an electrical signal, and then transmits it to the outside. The emitted signal is received by a receiver 52 and then sent to a central processing unit (CPU) 44 via an input circuit 46.
supplied to Based on this signal, the central processing unit (CPU) 44 selects the data corresponding to the code number from among the stored data, and thereby determines the grain drying processing program. In this way, when the user reads the desired barcode 66 with the barcode reader 54, data corresponding to the grain variety, region, and crop are automatically input into the control circuit.

Next, the operation of this embodiment will be explained.

When operating the grain drying apparatus 10, the operator operates the grain switching dial 39 and the loading amount dial 41 depending on the type of grain to be dried and the loading amount.

As a result, a basic drying program is set according to the type of grain and the amount of grain to be loaded. Furthermore, the operator selects one of the various barcodes 66 that corresponds to the desired drying conditions. That is, barcodes 66 displayed as barcodes corresponding to coded and stored data such as hot air temperature, air volume, circulation speed, etc. are sequentially selected and read by the barcode reader 54. The barcode reader 54 converts the read optical signal into an electrical signal and then transmits it. The emitted signal is received by a receiver 52 disposed in the control panel 38 and then sent to the central processing unit (C) via an input circuit 46.
PU) 44.

The central processing unit (CPU) 44 extracts data that corresponds to the supplied code number signal from among the data encoded and stored in the ROM, i.e., data such as hot air temperature and circulation speed according to the grain variety, region, and crop. is selected and read out, and a drying process program that controls the hot air temperature, air volume, circulation speed, and operation pattern according to the grain to be dried and determines the moisture conversion rate is finally set. As a result, the central processing unit (CPU) 44 automatically controls the hot air temperature, air volume, circulation speed, operation pattern, and moisture conversion rate by considering the signals inputted from each sensor via the input circuit 46, and outputs the output circuit 48. Drive through relay circuit 5
Outputs an activation signal to 0.

Therefore, the hot air temperature and operation pattern are automatically controlled by the fuel supply amount of the burner 18, the scenery and the operation pattern are automatically controlled by the rotation speed of the suction/exhaust fan 20, and the circulation speed and operation pattern are controlled by the drive speed of the shutter drum 26. The drying process is automatically controlled.

As described above, in this embodiment, when operating the grain drying apparatus 10, desired data, that is, drying process control adapted to the variety and region of grain to be dried can be set by simply reading the barcode 66 with the barcode reader 54. Therefore, the grain drying apparatus IO can be operated under optimal conditions. Therefore, in order to be able to adapt to various conditions, the data is coded and stored, and the code is also set as a bar code (this makes it possible to easily code and store data in any region of the country or with different varieties or crops. It will be possible to dry the grain with a single model, which will also reduce costs.

Furthermore, since a backup power source is connected to the RAM of the storage unit 40, storage can be maintained.

In other words, drying processing data such as the operation pattern of the grain drying device 10, the time required for drying, the percentage of moisture content at which it stopped, the initial moisture content, whether or not it was restarted, and the outside temperature and humidity during drying. can be stored in this RAM, so if the storage unit 40 is retrieved and analyzed, the best drying program can be determined when creating a program at a later date, and experiments can be conducted under different conditions. It can be used effectively.

In this embodiment, data corresponding to grain varieties, regions, and crops are coded and stored, and the barcode 66 is barcoded in correspondence with this code number, but the present invention is not limited to this. First, data on other conditions such as hot air temperature and circulation speed depending on the type of grain and the amount of grain to be loaded may be coded and stored, and the code number may be displayed and read as a bar code. In this case, the operator does not need to perform complicated operations such as the existing grain switching dial and grain amount dial.

Alternatively, hot air temperature, air volume, circulation speed, etc. can be set as a series of data for each region, variety, or crop, and this can be coded and stored, and this selection signal can also be displayed as a barcode and read by the barcode reader 54. good. In other words, as shown in Table 2, in the case of non-glutinous rice grown in Hokkaido, the optimum hot air temperature is 60°C, the Wi ring speed is 1 hour/1 circulation, and the air volume is 10017 minutes, then these series of data are coded. It may be stored as r001J and the code number roll may be further displayed as a barcode. In this case, a series of data such as the hot air temperature and circulation speed can be input by performing the barcode reading operation - times, so that the reading operation of the barcode reader 54 becomes easier.

It is also possible to directly convert each data necessary for setting the second surface paddy barley and drying processing program into a bar code, and read this with the code reader 54. In this case, there is no need to store various encoded data in the ROM.

Alternatively, the ROM may be configured to store various drying processing programs that differ depending on the type, variety, amount of grain, region, and crop, and this selection signal may be converted into a bar code and read by the bar code reader 54 for selection.

Further, in this embodiment, the data read by the barcode reader 54 is photoelectrically converted and then transmitted as a radio signal. However, the present invention is not limited to this. It is also possible to have a configuration in which it is supplied to. Alternatively, the barcode reader 54 and the control circuit may be directly connected by an electric cable. In this case, the receiver 52 and transmitter 64 are not required, and the structure becomes simple.

〔Effect of the invention〕

As explained above, the grain drying device according to the present invention is a grain drying device equipped with a control device that dries grain by automatically changing drying control according to input data. A barcode reader is installed that reads this barcode and inputs it into the control device, so it is easy to input the optimal data depending on the grain to be dried, and this makes it possible to change the drying control. It has this effect.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of a grain drying device according to an embodiment of the present invention, Fig. 2 is an enlarged perspective view of the main part of Fig. 1, Fig. 3 is a schematic sectional view of the grain drying device, and Fig. 4 is a control circuit. Fig. 5 is a block diagram of a barcode reader. DESCRIPTION OF SYMBOLS 10...Grain drying device, 40...Storage part, 52...Receiver, 54...Barcode reader, 66...Barcode.

Claims (1)

[Claims] (1) In a grain drying device equipped with a control device that dries grain by automatically changing drying control according to input data, the data is converted into a barcode, and the barcode is read and sent to the control device. A grain drying device characterized by being equipped with a barcode reader for inputting data.