JPS60839A - Automatic safety apparatus in rotary sorting hulling machine - 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 The present invention relates to an automatic safety device in a rotary sorting huller equipped with a rotary sorting section that sorts brown rice and paddy using a sorting cylinder that can be hung horizontally.

This rotation 1! The scraping action by the printing part is carried out by the scooping action of the depressions in the process of gradually moving the mixed grains from one end of the separate cylinder toward the other. The grains are shaped like dogs and easily escape from the depressions and fall at a low level, but depending on the variety, some grains are extremely small, and some jJLs are not completely removed in the previous process before being supplied to this rotary sorting section. The conditions of the mixed grains supplied to the rotary sorting section usually vary from time to time.

Therefore, the conditions of the mixed grains supplied to the rotating/shading section will sensitively affect the scooping action of the hollow by 1/-1, which will not only reduce the accuracy of sorting brown rice and paddy, but also cause clogging in the machine body. [2] If it is impossible to drive, it may even lead to a situation where the vehicle is stopped.

Therefore, in view of the above-mentioned points, the present invention provides a mixing ratio detection sensor in the grain flow path taken out from the sorting cylinder, and uses this mixing ratio detection sensor to control the upper and lower control valves installed on the receiving side of the receiving gutter. The grain is automatically adjusted to take out grains with the same value as the reference mixing ratio by adjusting the position, and when the control valve reaches the upper and lower limit positions, the supply of grains to the stirring section is stopped to stabilize the sorting accuracy. The purpose is to ensure the safety of rice hulling work.

The following description will be made with reference to embodiment figures.

First of all, if you look at the outline of the rotary sorting section rice removal machine, (
A) is a deweighing section, (B) is a wind separation section that removes dust and fine particles such as rice husks from the scraped material that has been deweighed in the agitation section (A), (
C) is a rotary sorting section that separates the mixed grains of brown rice and paddy obtained by the removal section (A) and the wind sorting section (B) into brown rice and paddy, and has a rough sorting section (+-1a) above and below. A sorting section (Ob) is provided, and each of the rough sorting section (Oa) and the fine sorting section (ab) has a sorting cylinder ( 1) Connect 12) to the drive shaft 13 in the longitudinal direction of the aircraft.
1 +41, which is rotatably suspended horizontally, and inside the sorting cylinder (1) there is a supply gutter 15) and a receiving gutter for transporting the mixed grains from the front side to the rear and dropping them into the cylinder +11. (6
), and a receiving gutter (71) is inserted horizontally in the sorting cylinder (2) (8), and the fallen rice flows into the upper air distribution door (B) and the supply gutter (R1l/1m). It communicates with the front Ill of (5), and the rear of the receiving trough (6) (j+ll is the joint grain flow path 19
1, the lower sorting cylinder (2) is placed on the rear side of the inner circumferential surface, the front end of the upper sorting cylinder 6 (11) is placed in the paddy flow path, and the front end of the lower sorting cylinder (2) is placed in the paddy flow path. They are connected to the journey (11).

Then, the mixed grains obtained by the demixing section (A) and wind sorting section (B) are lifted up by the dropped rice thrower (8) and passed through the supply gutter (5) from the front side to the rear side. Transferred to arrow (a)
As shown in , it falls onto the inner peripheral surface of the sorting cylinder (1).

These fallen mixed grains of brown rice and paddy are scooped up by the depression (a) and are shifted upward in the rotating direction of the sorting cylinder (1) as shown by the arrow (b) and rise up. On the contrary, it gradually moves to the front side while repeating the flowing state of collapsing. During the above flow process, the paddy floats to the surface and the brown rice sinks to the lower layer, making it easy for the brown rice to fall into the hole (a). (a
) The rice that broke away was mainly scooped up to the highest level K and fell into the receiving trough (6) along with the remaining brown rice and some paddy that was scooped up from the high level to the middle level. After being sorted, the fallen brown rice and some of the paddy are transferred to the rear and then supplied from the mixed grain channel (9) to the lower sorting cylinder (2), which is placed in the same depression as the upper sorting cylinder (1). The brown rice that has been carefully selected by the scooping action in (a) and has fallen into the receiving gutter (7) is transferred to the front side and is completely led out of the machine through the brown rice flow path opening υ as shown by the arrow (・→). Then, the paddy that is not scooped up by the upper sorting cylinder (1) of O4J is returned to the weighing part (A) from the front end through the paddy flow path side, and is not scooped up by the lower sorting cylinder (2). A part of the brown rice and paddy flows from the front end into the scraped rice thrower (8) as shown by the arrow), joins with new mixed grains, and is completely supplied to the rotary sorting section (0) again.

Next, the automatic safety device of the present invention will be described.

(The direction of rotation of the receiving gutter (6) that is inserted and horizontally suspended in the sorting cylinder (1) constituting the 121 rough sorting section (Ca) (
The control valve is installed on the upper side (indicated by the arrow jul) from the front side to the rear side and the base end is connected to the rotating shaft (13) so that the vertical position can be changed freely. It is installed diagonally upward. (141 is a mixing ratio detection sensor, which is installed in the mixed particle flow path (9) that communicates the receiving gutter (6) and the inner peripheral surface of the lower sorting cylinder (2), and is detected in the rough sorting section (Ca). The mixed grain of brown rice and paddy is irradiated with light, the reflected light is received, the mixed value of the paddy is detected based on the difference in reflection between the brown rice and the paddy, and the detected fit is converted into an electric signal. The mixing ratio detection sensor (14) is connected to the circuit 115.
1 is electrically connected to the control circuit (I6), and the control circuit 06 outputs a forward/reverse signal for the electric corner (17) in order to match the detection output of this mixing ratio detection sensor (141) with the reference mixing ratio. A mixing ratio detection sensor (a circuit that detects the change in the output of the paddy) is installed at the
181, the electric motor Pf+71 which is energized is configured to perform normal rotation and reverse rotation, and to stop driving the electric motor q71 when the output of the mixture ratio detection sensor (14) and the reference mixture ratio are in balance. This electric motor (19 is installed on the rear frame wall of the coarse 1st part (Ca)
The worm wheel α is attached to the shaft and the rear end of the control valve t+2 is rotated @ 131 is exposed outside the rear cherry wall. The worm (19) and the worm (19) are kept in a mutually locked state.However, the electric motor f+71 has a reverse rotation of 1d and 1d.
The control valve aZ is moved up and down via a worm wheel 12 (d).

2+11221 is a control valve f on the rear side inside the sorting cylinder (1).
The control valve 07I is set at the upper limit position and the lower limit position for vertical movement, respectively, and the limit switch is electrically connected to the control circuit α, and the control valve 07I is moved upward or downward by the limit switch A. If either one of @ is touched, the current flow from the control circuit (I6) to the electric motor t171 is cut off, and at the same time, the solenoid valve +251 is activated. +261 is an opening/closing plate that opens and closes the falling channel from the paddy tank to the deweighing ρ-le in the deweighing section (A), and is opened or closed by the operation of this electromagnetic valve 125). The alarm is configured so that when the alarm is closed, the control circuit (161) is energized and the alarm sounds.

The rotary sorting section (0) according to this embodiment has upper and lower rough sorting sections (ca
) and a fine sorting section (cb) to sort brown rice and paddy, and the automatic safety device according to the present invention will be explained with reference to the mixed value in the rough sorting section (ca) iF. , Selecting the mixed value flowing into the rice thrower [8] from the bending section of the sorting cylinder (2) in the sorting section (Cb) F (8). However, the object of the present invention can still be achieved.

In other words, when detecting the difference in light reflection between brown rice and paddy, it is proportional to the amount of paddy mixed. C. As a result of the increase in reflectance, if the detection value detected by the mixture ratio detection sensor product becomes higher than the reference mixture ratio, the detection output of the mixture ratio detection sensor (141) also increases and becomes lower. In this case, the detection output decreases and a forward/reverse drive signal is output to match this reference mixing ratio, and the control valve 021 moves upward or downward to equalize the basic mixing ratio.
It is possible to maintain the sorting operation in a state where the paddy is not properly mixed, and if the appropriate mixing value cannot be obtained by changing the vertical position of the control valve IJ2), the system will stop supplying paddy to the weighing section (A) and issue an alarm. It emits.

After the paddy supply is stopped, the operation of the rotary sorting and hulling machine itself is stopped via a timer.

As described above, the present invention consists of a rotary 3 cylinder body having a plurality of recesses formed on the inner circumferential surface and horizontally supported horizontally so as to be rotatable. In a one-time fll-sorting huller equipped with a separate part, a control valve whose position can be changed is provided on the grain receiving side of the receiving trough, and the grain flow path where the grains are still taken out from the sorting cylinder is provided. is equipped with a mixing ratio detection sensor that detects the mixing value of brown rice and paddy, and the upper and lower positions of the control valve are changed and adjusted by this mixing ratio detection sensor, and
A limit switch is provided at each of the upper and lower limit positions of the il+ valve, and when the control valve comes into contact with either limit switch due to vertical movement, the supply of grains to the stirring section is stopped. The conditions for the mixed grains transferred to and supplied to the department vary, for example, the size of the grains due to differences in variety, the degree of removal of texture etc. in the previous process, and the reduction in deweighing rate due to insufficient drying. be. These various mixed grain conditions are sensitive to the sorting action of the rotary sorting section, but the vertical position of the control valve is automatically corrected so that the detected value of the mixing ratio detection sensor constantly matches the appropriate reference mixing ratio. Therefore, the sorting accuracy is always maintained at a good level. Furthermore, when the adjustment by the vertical movement of the control valve reaches its limit, Since we have a meeting to inspect the rice for any defects, we can now ensure that the rice hulling work is carried out safely.

[Brief explanation of the drawing]

The drawings are for illustrating embodiments of the present invention, and FIG. 1 is a diagram showing the entire rotary sorting and hulling machine equipped with the device of the present invention;
Figure 2 is a rear view of the same part, and Figure 3 is an enlarged view of the first part. Description of symbols for main parts: (a)...Indentation, (1)...Sorting cylinder, (6)...Gutter, (C)...Rotary sorting Division, (Oa)...Rough selection section, t+21...
...Control valve, (9)...Grain flow path (mixed grain flow path), (14)...Mixing ratio detection sensor, +2+
11221...Limit switch, (A)...
...Knee scales.

Claims (1)

[Claims] In a rotary sorting huller equipped with a rotary sorting section in which a receiving gutter is inserted and horizontally suspended in a rotatably horizontal sorting cylinder with a large number of depressions formed on the inner circumferential surface, grains in the receiving gutter are A control valve whose vertical position can be changed freely is provided on the receiving side of the grains, and a mixing rate detection sensor for detecting the mixing value of brown rice and paddy is provided in the flow path through which the grains are taken out from the sorting cylinder. The upper and lower positions of the valve are changed and adjusted by this mixing ratio detection sensor, and limit switches are provided at each of the upper and lower limit positions of the control valve, so that when the four-section valve moves up and down, which one contacts one of the IJS switch L7. An automatic safety device for a rotary sorting huller, characterized in that it is configured to stop the supply of grain to a weighing section when the grain is removed.