JP2507725B2 - Paddy sorting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is a hull sorting method in which the hull is removed by a hulling mechanism and the boiled rice after the hulling is sorted into brown rice and hull. It is related to the improvement of the machine.

[Conventional technology]

Generally, a hulling machine is provided with a paddy supply shutter on the downstream side of the paddy supply hopper, and after the paddy is put in the paddy supply hopper with the paddy supply shutter closed, the paddy supply shutter is manually opened. Thereby, the hulling work is started, and when the paddy in the paddy supply hopper is exhausted, the paddy supply shutter is manually closed.
It takes time to open and close the paddy supply shutter.

Therefore, in recent hulling machines, for example, Japanese Patent Laid-Open No. 60-2
As described in No. 02747 and the like, a paddy sensor for detecting the presence or absence of paddy is provided in the paddy supply hopper, and the paddy supply shutter is automatically operated in association with the detection of the presence of paddy by the paddy sensor. The opening and closing operation is performed.

[Problems to be solved by the invention]

However, in this hulling machine, a sorting mechanism that sorts the slid-down rice after removal into brown rice and paddy, and paddy reduction for returning the paddy sorted by this sorting mechanism to the paddy supply hopper in the hulling machine. When the means is attached, the fact that the paddy supply shutter is related only to the paddy sensor in the paddy feed hopper means that the paddy is returned to the paddy huller from the sorting mechanism. The supply shutter had a problem that it closed and ended due to the lack of paddy in the paddy supply hopper.

The present invention aims to solve this problem.

[Means for solving problems]

Therefore, the present invention, a paddy hulling mechanism with paddy supply hopper,
A sorting mechanism for sorting the deciduous rice removed by the hulling mechanism into brown rice and paddy, and paddy reducing means for returning the paddy sorted by the sorting mechanism to the paddy supply hopper in the paddy-shaving mechanism. And in a paddy sorting machine provided with a paddy supply shutter on the downstream side of the paddy supply hopper in the paddy hull mechanism, in the paddy supply hopper, for detecting paddy in the paddy supply hopper. The second sensor for detecting the paddy reduced by the paddy reducing means is provided in the paddy reducing means, and the paddy supply shutter in the paddy sliding mechanism includes the paddy feeding shutter. An opening / closing operation means for opening and closing is provided, and further, a paddy signal by the first sensor and no paddy by the first sensor and the second
A shutter open signal is output to the opening / closing operation means of the paddy supply shutter by a signal indicating that the paddy is present by the sensor, and the opening / closing operation means of the paddy supply shutter is output by the signal of no paddy by the first sensor and the absence of paddy by the second sensor. The control means for outputting the shutter closing output is provided.

[Functions and effects of the invention]

With this configuration, the opening of the paddy supply shutter is performed by the first sensor in the paddy supply hopper to detect the presence of paddy, that is, when the paddy is present in the paddy supply hopper, and the paddy is supplied by the paddle sensor. Even when there is no detection of presence, it is also performed when the second sensor in the paddy reducing means detects the presence of paddy, that is, when the paddy is returned to the paddy sliding mechanism, while closing the paddy supply shutter. The detection is performed only when the first sensor detects no paddy and when the second sensor detects no paddy.

Therefore, according to the present invention, although the paddy supply shutter can be automatically opened and closed, the paddy supply shutter can be closed in spite of the return of the paddy to the paddy sliding mechanism as in the conventional case. It has an effect that it can be surely prevented from ending and the work efficiency of the hulling and sorting can be improved.

〔Example〕

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The rotary type sorting mechanism 3 mounted on the right upper surface of the selecting device 1 is entirely configured.

The paddy hull mechanism 2 includes a case 4 with a paddy supply hopper 5.
And a pair of left and right derolling members 6 provided in the case 4,
It is provided with a paddy supply shutter 7 provided between the both rolls 6 and the paddy supply hopper 5.

The wind selecting device 1 includes a compressed air fan 8 and a dust exhaust fan 9.
And a sliding rice wind selecting portion 10 and a brown rice wind selecting portion 11 provided between the two fans 8 and 9, and the sliding rice wind selecting portion 10 is removed by the paddy mechanism 2. Rice husks are selected by wind from the scraped rice, and the scraped rice after sorting is sent to the rotary sorting mechanism 3 by the bucket container 12. In addition, the brown rice style selection unit 11
Is for finishing wind selection of the brown rice selected by the rotary selection mechanism 3, and the brown rice after the finishing wind selection is taken out of the machine by the bucket container 13.

On the other hand, the rotary sorting mechanism 3 sorts the slid-down rice after the wind sorting into brown rice and paddy, and in the box-shaped case 14,
A rotating sorting cylinder 15 having a large number of recesses 15a formed on its inner peripheral surface.
Is provided in upper and lower two stages, and in both of these selection cylinders 15, an open top type brown rice gutter 16 is provided, and in both selection cylinders 15 from the bucket container 12 through a distribution chute 17. The scraped rice supplied to one end is moved toward the other end of the selection cylinder 15 while flowing by the rotation of the selection cylinder 15, while the brown rice is fitted into the recess 15a from a high position. By dropping, it is sorted so as to enter the brown rice gutter 16, through the brown rice wind selection unit 11, is taken out of the machine at the bucket combe 13, while the paddy remaining in both sorting cylinders 15 is, After being lifted up to a high position by the blade 15b at the other end of the sorting cylinder 15, it is returned to the paddy reducing section 5b in the paddy supply hopper 5 of the paddy sliding mechanism 2 via the paddy reducing chute 18 and is returned again. It is taken off.

The paddy supply shutter 7 in the paddy sliding mechanism 2 has a screw rod 19 connected to the shutter 7 and a nut 20 screwed to the screw rod 19.
And a motor 21 for rotating the nut 20 in the forward or reverse direction.
The opening / closing operation means 22 constituted by is provided, and the paddy supply shutter 7 is fully closed by an opening switch 23 which is turned on when the paddy supply shutter 7 is fully opened. Closed switch that turns on when
24 and are provided.

In the paddy supply hopper 5 of the paddy hulling mechanism 2, a first sensor 25 for paddy detection is provided at a portion 5a where paddy is put into the paddy feed hopper 5, and a paddy detection portion 5b is provided at the paddy reducing portion 5b. Each second sensor 26 is provided.

Further, in FIG. 2, reference numeral 27 is the first sensor.
25, a second sensor 26, a paddle supply shutter opening switch 23, and a paddle supply shutter closing switch 24, based on signals from the control circuit for controlling the opening and closing operation means 22 of the paddy supply shutter 7, this control In the circuit 27, a shutter open signal is output to the opening / closing operation means 22 of the paddy supply shutter 7 in response to a paddy signal from the first sensor 25 and no paddy signal from the first sensor 25, and a paddy signal from the second sensor 26. No paddy by the first sensor 25 is provided with control means for outputting a shutter close output to the opening / closing operation means 22 of the paddy supply shutter 7 in response to a no paddy signal by the second sensor 26.

This will be described in detail with reference to the flowchart shown in FIG. 3. In step S1 following the start, conditions for starting hulling sorting by the hulling sorting machine (for example, the number of rotations of both sorting cylinders 15 in the sorting mechanism 3 reaches a predetermined value). If the conditions for hulling selection are met, it is determined in step S2 that the first sensor 25
After reading the signal of paddy detection from the first sensor 25, it is determined whether or not there is a signal of paddy detection from the first sensor 25 in step S3. When the paddy feeding section 5a in the paddy supply hopper 5 has paddy, a signal for opening the paddy supply shutter is sent to the motor 21 in the opening / closing operation means 22 of the paddy supply shutter 7 until the paddy supply shutter open switch 23 is turned on. By opening, the paddy supply shutter 7 is fully opened (step
S4, step S5).

On the other hand, when there is no paddy detection signal from the first sensor 25 in step S3, that is, when there is no paddy in the paddy-feeding section 5a in the paddy supply hopper 5, the paddy detection from the second sensor 26 is detected in step S6. After reading the signal, in step S7, it is determined whether or not there is a paddy detection signal from the second sensor 26, and if there is a paddy detection signal from the second sensor 26, that is, the sorting mechanism 3 If there is a reduction of the paddy to the paddy hulling mechanism 2, the process proceeds to steps S4 and S5 to fully open the paddy supply shutter 7, but in step S7, the paddy detection signal from the second sensor 26 is sent. When there is no paddle, that is, when there is no reduction of the paddy from the sorting mechanism 3 to the paddy-sheathing mechanism 2, the paddy supply shutter closing switch 24 is turned on to the motor 21 in the opening / closing operation means 22 of the paddy supply shutter 7. Until By issuing a signal of the supply shutter closed, the paddy rice supply shutter 7 completely closed (step S8, step S9).

As a result, the opening of the paddy supply shutter 7 causes the first sensor 25 in the paddy supply hopper 5 to detect the presence of paddy,
That is, it can be performed when the paddy is present in the paddy-feeding unit 5a of the paddy supply hopper 5, and even when the presence of the paddy is not detected by the first sensor 25, the paddy-reducing unit 5b is used.
Can be performed when the second sensor 26 detects the presence of paddy, that is, when the paddy is returned to the paddy sliding mechanism 2, while closing the paddy supply shutter 7 is performed by closing the first sensor 25. It can be performed only when no paddy is detected by the second sensor 26 and when no paddy is detected by the second sensor 26.

In addition, although the said Example showed the case where the rotary type sorting mechanism 3 was used as a sorting mechanism, it is needless to say that this invention is not restricted to this and another type of sorting mechanism may be used. In addition, the second sensor 26 is the paddy reduction chute 18
It may be provided in the middle of.

[Brief description of drawings]

The drawings show the embodiments of the present invention, FIG. 1 is a vertical sectional front view of a hulling sorting machine, FIG. 2 is an enlarged cross-sectional view of a main part of a hulling mechanism, and FIG. 3 is a flowchart of control. 1 ... wind selection device, 2 ... hulling mechanism, 3 ... sorting mechanism, 5
…… Paddy supply hopper, 7 …… Paddy supply shutter, 18 ……
Paddy reduction chute, 5a …… paddy input section, 5b …… paddy reduction section, 25
...... First sensor, 26 ...... Second sensor, 22 ...... Rice supply shutter opening / closing operation means, 27 ...... Control circuit.

Claims (1)

(57) [Claims] 1. A hulling mechanism with a paddy supply hopper, a sorting mechanism for sorting the deciduous rice removed by the hulling mechanism into brown rice and paddy, and the paddy sorted by the sorting mechanism. In a paddy sorting machine, which comprises a paddy reduction means for returning to paddy supply hopper in the sliding mechanism, and a paddy supply shutter is provided on the downstream side of the paddy supply hopper in the paddy sliding mechanism, in the paddy supply hopper The first sensor for detecting paddy in the paddy supply hopper, the paddy reducing means is provided with a second sensor for detecting paddy reduced by the paddy reducing means, while The paddy supply shutter in the paddy sliding mechanism is provided with an opening / closing operation means for opening / closing the paddy supply shutter, and further, a paddy presence signal from the first sensor and a first sensor are used. Without the paddy, the second sensor outputs the opening of the shutter to the opening / closing operation means of the paddy supply shutter by the signal indicating the presence of the paddy, and the first sensor outputs the non-paddy and the second sensor outputs the non-paddy. A paddy sorting machine, wherein a control means for outputting an output to close a shutter is provided in an opening / closing operation means of a paddy supply shutter.