JPH07110350B2 - Judgment device of rotary sorting cylinder in hulling sorting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) In the present invention, the dehulled rice is detreated and the mixed rice after detreatment is guided to a rotary sorting cylinder and provided on the inner peripheral surface of the rotary sorting cylinder. The present invention relates to an improvement of a hulling and sorting machine that sorts paddy and brown rice using a large number of recesses.

(Prior Art) Conventionally, in this type of device, a plurality of types of rotary sorting cylinders having different sizes of the above-mentioned recesses are prepared according to the type of paddy processed in the rotary sorting cylinder and the size thereof, and as necessary, Select one of these and attach it to the aircraft to use.

(Problems to be solved by the invention) However, conventionally, there has been a problem that an operator has to set an optimum rotation speed according to the model of the mounted rotary selection cylinder.

Further, in the related art, there is a case where the rotary selection cylinder does not rotate in the normal direction and is mechanically damaged due to incorrect connection of the three-phase motor that drives the rotation selection cylinder.

The present invention aims to solve these problems.

(Means for Solving Problems) In order to achieve such an object, the present invention has the following configuration.

That is, the present invention is a depulling roll for debulling paddy,
In a hulling / sorting machine equipped with a plurality of models of replaceable sorting cylinders having different recess sizes for sorting mixed rice of unhulled rice and brown rice after decapsulation, a rotary sorting tube is provided with a marker corresponding to the type of the rotary sorting tube. And a detection means for detecting the marker and outputting a detection signal during rotation of the rotary selection cylinder, and a determination means for determining the model of the rotation selection cylinder and its rotation direction based on the detection signal. It will be.

(Operation) In the present invention configured as described above, when the rotation selection cylinder 2 starts to rotate, the detection unit detects a marker provided on the rotation selection cylinder 2 such as a magnet or a bar code, and outputs a signal corresponding to the detection. Output.

The discrimination means discriminates the model of the rotation selection cylinder 2 and its rotation direction based on the detection signal.

Therefore, in the present invention, the determination result is used to automatically set the control conditions such as the number of rotations of the selection cylinder according to the type of the rotation selection cylinder currently mounted, and the rotation is performed when the rotation direction is abnormal. The rotation of the sorting cylinder 2 can be automatically stopped to prevent mechanical damage due to abnormal rotation.

(Embodiment) A first embodiment of the present invention will be described with reference to FIGS.

In the first embodiment, the rotary sorting cylinder 2 provided in the hulling / sorting machine 1 is made detachable from the machine body, and two magnets M1 and M2 are attached to the outer periphery of the rotary sorting cylinder 2 as markers so as to be separated by an angle α. Then, as will be described later, reed switches S1 and S2 for detecting the presence or absence of passage of the magnets M1 and M2 when the rotation selection cylinder 2 is rotated are arranged around the rotation selection cylinder 2 at an angle θ. Reference numeral 3 in FIG. 1 denotes a pair of left and right rolls that rotate the rotary selection cylinder 2.

As the rotary sorting cylinder 2, for example, standard ones and small grain ones are prepared according to the type of grain to be sorted or the size of the grain, as shown in FIGS. 2 and 3. Here, the rotary selection cylinder 2 for small particles is formed such that the size of a large number of recesses formed on its inner peripheral surface is smaller than the recesses of the standard rotation selection cylinder 2.

The angle α between the magnets M1 and M2 attached to the outer circumference of the standard rotary sorting cylinder 2 for distinguishing between the standard rotary sorting cylinder 2 and the small grain rotary sorting cylinder 2 is α = α1, as shown in FIG. As shown in FIG. 3, the rotary selection cylinder 2 for use has α = α2.

Here, it is assumed that α1 <α2.

Further, the mounting angle α of the magnets M1 and M2 mounted on the rotary selection cylinder 2 and the arrangement angle θ of the reed switches S1 and S2 are as shown in FIG. (A)
There are cases where α> θ as shown in, and any of these may be used, but the case where α = θ is excluded.

Next, a block diagram of the electric system of the first embodiment configured as described above will be described with reference to FIG.

In FIG. 4, reference numeral 10 denotes an input interface, which is connected to the start switch 11 and the stop switch 12 in addition to the reed switches S1 and S2, receives these signals, and is connected to the microcomputer 13.

The microcomputer 13 processes various signals as described later and controls each component based on these signals.

Reference numeral 14 denotes an input interface, which is connected to a main motor 15 for driving the rotation selection cylinder 2, a derolling motor 17 for driving the derolling 16, an alarm device 18, and the like.

Next, an operation example of the first embodiment configured as above will be described with reference to the flowchart of FIG.

Now, when the start switch 11 is turned on (step S1),
The main motor 15 is driven to start rotation of the rotation selection cylinder 2 (step S2).

Next, with the rotation of the rotation selection cylinder 2, output waveforms corresponding to the initial positions of the electromagnets M1 and M2 attached to the rotation selection cylinder are obtained from the reed switch S1 and the reed switch S2.

That is, the reed switches S1 and S2 are shown in FIG.
At each initial position shown in (D), the seventh
The output signals of FIGS. 8A to 8D or FIGS. 8A to 8D are obtained. Similarly, when the reed switches S1 and S2 are in the respective initial positions shown in FIGS. 9 (A) to 9 (D), FIGS.
Each output signal of (D) is obtained.

By the way, as shown in FIG. 7 or FIG. 8, the patterns of the output waveforms of the reed switch S1 and the reed switch S2 are different when the rotation selection cylinder 2 is in the normal rotation and in the reverse rotation.

Therefore, in step S4, this pattern is stored in advance and it is determined whether or not the rotation direction of the rotation selection tube 2 is normal. When the rotation direction is abnormal, the driving of the main motor 15 is stopped and the alarm 18 notifies the operator of the fact. (Step S5). As a result, the rotation of the rotation selection cylinder 2 is stopped, so that mechanical damage can be prevented. In addition, since the operator can easily know that fact, the electrical connection of the main motor 15 can be immediately changed to the normal rotation direction.

On the other hand, when the rotation direction of the rotation selection cylinder 2 is normal, the process proceeds to step S6, and it is determined whether the rotation selection cylinder 2 is for standard use or for small particles. This determination is made by the mounting angle α between the magnet M1 and the magnet M2 of the rotary cylinder 2, as shown in FIG. 7A, the time difference T1 between the output signals obtained by the reed switch S1, or the reed switch S1 and the reed switch. Since there is a difference in the time difference T2 in each output signal from S2, the difference is determined.

When it is determined that the rotary selection cylinder 2 is for standard use,
The control conditions such as the number of revolutions are set so as to be for standard use (step S8), and when it is determined that the rotary selection cylinder 2 is for small grains, the control condition is set so as to be for small grains. (Step S7).

By the way, in the first embodiment, the reed switch S1 or S2
It is possible to obtain not only the model and rotation direction of the rotation selection cylinder 2 but also the rotation speed by using the output signal of

As described above, in the first embodiment, as shown in FIG. 1 as a marker, a reflecting plate is attached to the rotary selection cylinder 2 instead of the magnets M1 and M2, and the presence or absence of this reflecting plate is detected by a reflection type photo sensor. Alternatively, it may be read optically.

With such a configuration, it is possible to perform the same control processing as that in the flowchart shown in FIG.

Next, a second embodiment of the present invention will be described with reference to FIGS.

In this second embodiment, the bar code 20 as shown in FIG. 12 or 13 is provided on the outer peripheral end of the rotary selection tube 2 shown in FIG.
Alternatively, each barcode 30 is formed.

If the rotary sorting tube 2 is a standard model, the bar code 20
As shown in FIG. 12, the reflection plates 20A to 20F are sequentially arranged in the rotation direction of the rotation selection tube 2.

Also, if the rotary sorting cylinder 2 is for small particles, the barcode 30
As shown in FIG. 13, the reflection plates 30A to 30H are sequentially arranged in the rotation direction of the rotation selection tube 2.

Next, a block diagram of the electric system of the second embodiment will be described with reference to FIG.

In the second embodiment, as shown in the drawing, the reed switches S1 and S2 of the first embodiment shown in FIG. 4 are replaced with a reflective photosensor 40 which optically reads the bar code 20 or 30.

Since other configurations are similar to those in FIG. 4, the same reference numerals are given and the description thereof is omitted.

Next, an operation example of the second embodiment thus configured will be described with reference to the flowchart of FIG.

Now, when the start switch 11 is turned on (step S1
1) The main motor 15 is driven and the rotation selection cylinder 2 starts rotating (step S12). Next, as the rotation selection tube 2 rotates, the reflective photosensor 40 reads, for example, the barcode 20, and the reflective photosensor 40 reads the barcode 20 in time series corresponding to the reading start position. The signal is output and coded.

That is, the read signal of the reflection type photo sensor 40 is the reflection plate.
Each signal as shown in FIG. 16 is obtained according to the reading start position of 20A to 20F and the reading direction. Then, a code obtained by coding these read signals in units of 4 bits is 16
Shown in the figure.

Similarly, FIG. 17 shows a read signal obtained by reading the bar code 30 with the reflective photosensor 40 and the corresponding code.

Next, it is judged whether or not the read code is "A8000H" or "A0000H" (step S14). When the judgment is affirmative, the rotation selection cylinder 2 is regarded as an abnormal rotation and the drive of the main motor 15 is stopped and an alarm is issued. The operator is informed by means of the container 18 (step S15).

On the other hand, when the determination is negative, it is determined whether or not the read code is "80000H" (step S16), and when the determination is positive, the bar code is read again (step S17).

As shown in FIG. 16, it is possible to determine the forward / reverse direction of the rotary selection tube 2 based on the difference in the read code. Therefore, the rotation direction of the rotary selection tube 2 is determined by the code determination (steps S18 and S19).

As a result of the determination, when the rotation direction of the rotation selection cylinder 2 is abnormal, the process proceeds to step S15, the drive of the main motor 15 is stopped, and the alarm device 18 notifies that.

By the way, as shown in FIG. 16 or FIG. 17, it is possible to determine whether the rotary selection tube 2 is for standard use or for small particles due to the difference in the read code. Therefore, in step S20, the model of the rotary selection tube 2 is determined.

As a result, when the rotary selection cylinder 2 is for standard use, the control conditions such as the number of revolutions are set to be for standard use (step
S21), on the other hand, when it is determined that the rotary selection cylinder 2 is for small particles, the control condition is set to be for small particles (step S22).

By the way, in the second embodiment, it is possible to obtain not only the model and rotation direction of the rotation selection tube 2 but also the rotation speed thereof by using the read code.

In each of the first and second embodiments described above, the model, rotation speed, and rotation direction of the rotary selection cylinder 2 can be known, but in some cases it may be desired to know only the model and rotation speed of the rotation selection cylinder. Therefore, a configuration example of the device in that case will be described below.

Depending on the model of the rotary sorting cylinder, one magnet is attached to the outer periphery for the standard type, and two magnets are attached for the small grain type.
The presence or absence of the magnet is configured to be detected by one reed switch.

Notch is provided for the standard flange on the opening side flange of the rotary sorting cylinder 2.
Two small portions 2A are provided (see FIG. 18) and three cutout portions 2A are provided for small particles (see FIG. 19), and these cutout portions are optically read.

(Effect of the invention) As described above, in the present invention, the model and the rotation direction of the replaceable rotary selection cylinder in the apparatus main body can be identified from the same sign, so that the setting of the control condition according to the model of the rotary selection cylinder is set. When the rotation direction is abnormal, the rotation of the rotation selection tube is automatically stopped to prevent mechanical damage due to the abnormal rotation.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a first embodiment of the present invention, FIGS. 2 and 3 are diagrams showing a configuration example of a rotary selection tube, respectively.
FIG. 5 is a block diagram of the first embodiment, FIG. 5 is a flow chart showing an example of its operation, FIG. 6 is a view showing the initial position of the rotary selection cylinder, and FIGS. 7 and 8 correspond to the initial position. FIG. 9 is a waveform diagram showing the output signal of the reed switch, FIG. 9 is a diagram showing the initial position of another rotation selection cylinder, FIG. 10 and FIG.
FIG. 11 is a waveform diagram showing the output signal of the reed switch corresponding to its initial position, FIGS. 12 and 13 are diagrams showing the essential structure of the second embodiment, and FIG. 14 is a diagram showing the second embodiment. FIG. 15 is a block diagram, FIG. 15 is a flowchart showing an example of the operation, FIG. 16 is a diagram showing an example of reading the bar code of FIG. 12, FIG. 17 is a diagram showing an example of reading the bar code of FIG. FIG. 19 and FIG. 19 are front views showing other embodiments of the rotary selection cylinder, respectively. 1 ... hulling sorting machine, 2 ... rotary sorting cylinder, M1, M2 ... magnet, S1, S2 ... reed switch, 13 ... microcomputer, 20,30 ... bar code, 40 ... reflective photo Sensor.

Front Page Continuation (72) Inventor Kiyoaki Mizuki 1 Yakura, Tobe Town, Iyo-gun, Ehime Prefectural Engineering Department, Iseki Agricultural Machinery Co., Ltd. ) Inventor Hachi-Tsuka-Kouichi No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture, Engineering Department, Iseki Agricultural Machinery Co., Ltd. (56) Reference JP-A 63-270585 (JP, A)

Claims (1)

[Claims] 1. A hulling / sorting machine equipped with a depulling roll for dehulling paddy, and a plurality of types of replaceable sorting cylinders having different recess sizes for sorting mixed rice of unhulled paddy and brown rice. In the above, in addition to providing a marker corresponding to the type of the rotary sorting cylinder on the rotary sorting cylinder, a detection means for detecting the marker during rotation of the rotary sorting cylinder and outputting a detection signal, and a rotary sorting cylinder based on the detection signal. A device for discriminating a rotary selection tube, which comprises a discriminating means for discriminating the model and the rotating direction thereof.