JPH0526546B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a roll-to-roll adjusting device for a hulling device.

(Prior Art) Conventionally known Japanese Patent Application Laid-Open No. 56-21653 discloses a hulling section having a hulling roll driven by a drive motor, and a method for sorting out different types of grains from the hulling section. The hulling section is provided with a hopper for supplying unhulled rice and a chamber for returning unhulled rice from the different grain sorting section, and the hulling roll is configured such that the distance between the rolls can be automatically adjusted by a forward and reverse motor. The unhulled rice supply hopper includes an unhulled rice presence/absence detection sensor that can detect the presence or absence of unhulled rice in the hopper, an unhulled rice supply amount control valve that can adjust the amount supplied from the hopper, and an unhulled rice supply amount adjustment valve that can open and close the adjustment valve. A sensor for detecting the presence or absence of unhulled rice is provided in the return chamber, and a sensor for detecting the presence or absence of unhulled rice is provided in the return chamber, and as the distance between the unhulled rice rolls becomes narrower, the load current of the drive motor reaches the upper limit set value. or,
It is described that when the gap between the hulling rolls becomes wide and the load current of the drive motor exceeds a lower limit set value, a signal is output and the normal adjustment of the gap between the hulling rolls is always performed by a forward and reverse rotation motor. has been done.

In addition, a conventionally known Japanese Patent Application Laid-Open No. 56-24055 has a structure similar to that of the above-mentioned publication, and even if the amount of returned unhulled rice is small just before the end of the work, the spacing between the hulling rolls can be finely adjusted. The mechanism by which this occurs is described.

(Problems to be Solved by the Invention) Among the above-mentioned known methods, the former is an invention in which the distance between the hulling rolls of the hulling section can always be adjusted normally.

Furthermore, the latter describes a mechanism that can finely adjust the distance between the hulling rolls even if the amount of returned unhulled rice is small just before the end of the work. but,
Since the device was not capable of dealing with a situation where the returned unhulled rice was cut off just before the end of the work, there was a risk of losing timing.

The present invention has been devised to deal with the situation when the unhulled rice is cut off just before the end of the work. When the hulling roll is interrupted, even if there is still rice between the hulling rolls, the drive motor expands the hulling rolls until the current becomes equal to the memorized no-load current value, and the delay in spreading the hulling rolls is prevented. It's something I lost.

(Means for Solving the Problems) Therefore, the present invention provides a hulling section 1 having a hulling roll 4 driven by a drive motor, and a dissimilar grain sorting section for sorting hulled grains from the hulling section 1. 10, the hulling section 1 is provided with a hopper for supplying unhulled rice and a chamber 33 for returning unhulled rice from the dissimilar grain sorting section 10, and the hulling rolls 4, 4 are automatically rotated between the rolls by a forward/reverse motor. The unhulled rice supply hopper 2 is provided with an unhulled rice presence/absence detection sensor 35, an unhulled rice supply amount regulating valve 3, and an opening/closing sensor 37 for the regulating valve 3. , a returned paddy rice presence/absence detection sensor 36 is provided, and the drive motor, the forward/reverse rotation motor, the unhulled rice presence/absence detection sensor 35, the returned paddy rice presence/absence detection sensor 36, the unhulled rice supply amount adjustment valve 3, and the opening/closing sensor 37 are operated. Before starting, the no-load current is measured and memorized by closing the control valve 3 and idling the drive motor, and during the work, when both the detection sensors 35 and 36 detect that there is no paddy rice, A hulling device in which the hulling rolls 4, 4 are connected in a relational manner so that the drive motor adjusts the distance between the hulling rolls 4 and 4 by the forward and reverse rotation motor until the drive motor becomes equal to the stored no-load current value. That is.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a hulling section, a hulled rice supply hopper 2 is provided at the top, and a hulled rice supply amount adjustment valve 3 is provided below the hulled rice supply hopper 2. The unhulled rice supply amount regulating valve 3 is provided with an opening/closing sensor 37 that detects when the valve 3 is fully closed.

A pair of hulling rolls 4, 4 are pivoted in the hulling section 1 below the control valve 3. 5 is a wind selection room below the hulling rolls 4, 4, 6 is a suction blower,
7 is a conveyor for taking out immature rice, 8 is a mixed rice receiving gutter, and 9 is a mixed rice conveyor located above the mixed rice receiving gutter 8.

Therefore, a dissimilar grain sorting section 1 is provided on the side of the hulling section 1.
Set 0. A horizontal shaft rotating cylinder 11 is installed horizontally in the dissimilar grain sorting section 10, and countless potholes 12 are formed on the inner surface of the horizontal shaft rotating cylinder 11. A flat part 13 in which no pot hole 12 is formed is formed in the longitudinal direction of the rotary cylinder 11.

A finished rice receiving trough 14 is installed horizontally in the horizontal shaft rotating cylinder 11, and a finished rice take-out conveyor 1 is installed above the finished rice receiving trough 14.
5 will be provided. Reference numeral 16 denotes a finished rice regulating valve whose base is rotatably attached to the finished rice receiving trough 14.

In FIG. 2, a mixed rice take-out trough 17 is installed on the left side of the finished rice receiving trough 14, and a mixed rice take-out conveyor 18 is installed above the mixed rice take-out sluice 17. 19 is a mixed rice supply gutter installed on the right side of the finished rice receiving gutter 14, 20 is a mixed rice supply conveyor provided on the mixed rice feed gutter 19, and 21 is a grain supply port provided at the end of the mixed rice feed gutter 19. be.

Reference numeral 22 denotes a mixed rice supply chamber provided on the side of the hulling section 1 in the different grain sorting section 10, to which the upper end of the thrower 23, whose lower end is connected to the mixed rice conveyor 9, is connected. 24 is a drop port provided on the discharge side 25 of the finished rice receiving trough 14, 26 is a finished rice receiving trough that receives the brown rice that has fallen from the drop port 24, 27 is a finished rice conveyor,
The brown rice transferred from the finished rice conveyor 27 is taken out of the machine by a thrower 28 as finished rice. 29 is a paddy rice outlet provided on the discharge side 25 side of the horizontal shaft rotating cylinder 11;
Reference numeral 30 denotes a paddy rice receiving trough that receives the unhulled rice falling from the unhulled rice outlet 29, 31 a unhulled rice take-out conveyor, 32 the lower end of which is connected to the unhulled rice take-out conveyor 31, and the upper end of which is connected to the unhulled rice return chamber 33 provided on the side of the unhulled rice supply hopper 2. It is a thrower that connects. Reference numeral 34 denotes an automatic roll distance adjustment device that automatically adjusts the distance between the hulling rolls 4, 4 provided on the side of the hulling section 1.

Therefore, a sensor 35 for detecting the presence or absence of unhulled rice is provided in the unhulled rice supply hopper 2 of the hulling section 1. The sensor 35 is ON when there is no unhulled rice in the unhulled rice supply hopper 2.
This is a sensor that turns off when there is unhulled rice. Reference numeral 36 denotes a sensor 36 for detecting the presence or absence of returned unhulled rice provided in the unhulled rice returning chamber 33. The sensor 36 is
If there is no returned unhulled rice returned to the unhulled rice return chamber 33 by the thrower 32 from the unhulled rice take-out conveyor 31,
It is a sensor that turns ON and turns OFF when it is present.

Therefore, the unhulled rice presence/absence detection sensor 35 and the returned unhulled rice presence/absence detection sensor 36 are connected to the forward/reverse motor of the roll interval automatic adjustment device 34, and when the unhulled rice presence/absence detection sensor 35...ON and the returned unhulled rice presence/absence detection sensor 36...ON, The load current is measured, and the roll-to-roll automatic adjustment device 34 is activated until the load current of the drive motor of the hulling roll 4 reaches the no-load current before work.
To automatically widen the distance between the hulling rolls 4, 4.

(effect) Next, we will discuss the effect.

When the unhulled rice supply amount control valve 3 is completely closed so that the open/close sensor 37 is turned on, the hulling roll 4,
Since no unhulled rice is supplied to 4, the hulling roll 4
will be in no-load operation (dry operation), and the no-load current of the motor can be known and stored in memory.

When the unhulled rice supply amount control valve 3 is opened, the unhulled rice in the unhulled rice supply hopper 2 is hulled by the hulling rolls 4, 4, wind-selected in the winnowing chamber 5, and transferred onto the mixed rice receiving trough 8. Falling and mixed rice conveyor 9 and thrower 2
3 and the mixed rice supply chamber 2 in the dissimilar grain sorting section 10.
The grains are fried in a mixed rice supply conveyor 20 and transferred from a grain supply port 21 to a horizontally rotating cylinder 11.
and is sorted by rotation of the horizontal shaft rotating cylinder 11.

The brown rice is scooped up through the pot hole 12 and falls onto the finished rice control valve 16, and then transferred to the finished rice take-out conveyor 15.
The finished rice is transferred from the drop port 24 to the receiving trough 26.
The finished rice conveyor 27 and thrower 2
8, and the unhulled rice is taken out of the machine through the unhulled rice outlet 2.
9 onto the paddy rice receiving trough 30, and is returned to the paddy rice return chamber 33 by the paddy rice take-out conveyor 31 and the thrower 32.

As the work approaches the end and the unhulled rice in the unhulled rice supply hopper 2 runs out, the unhulled rice presence/absence detection sensor 35 turns ON, and when the unhulled rice in the unhulled rice return chamber 33 runs out, the unhulled rice presence/absence detection sensor 36 also turns ON.
However, in this case, even if there is still rice between the hulling rolls 4, 4, the roll interval automatic adjustment device 34 is activated immediately and the hulling rolls 4, 4 are turned on.
Automatically widens the distance between the rolls until it becomes equal to the no-load current value before work.

Therefore, there is no risk of losing timing.

(Effects) Among the above-mentioned known inventions, the former is an invention in which the distance between the hulling rolls of the hulling section can always be normally adjusted. In addition, even if the amount of returned unhulled rice near the end of the work is small, the latter can be used between the hulling rolls.
A mechanism that can finely adjust the is described. However, since this device is not capable of dealing with a situation where the returned unhulled rice is cut off just before the end of the work, there is a risk that the timing will be lost.

However, the present invention provides a hulling section 1 having a hulling roll 4 driven by a drive motor, and a dissimilar grain sorting section 1 for sorting hulled grains from the hulling section 1.
0, and the unhulled rice supply hopper 2 is provided in the hulling section 1.
and a chamber 3 for returning unhulled rice from the foreign grain sorting section 10
3, the hulling rolls 4, 4 are formed so that the distance between the rolls can be automatically adjusted by a forward/reverse motor, and the unhulled rice supply hopper 2 is equipped with an unhulled rice presence/absence detection sensor 35, and an unhulled rice supply amount adjustment sensor. Valve 3 and
An opening/closing sensor 37 for the control valve 3 is provided, and the return chamber 33 is provided with a sensor 36 for detecting the presence or absence of unhulled rice, the drive motor, the forward/reverse motor, the sensor 35 for detecting the presence or absence of unhulled rice, and the sensor 36 for detecting the presence or absence of unhulled rice. 36, the unhulled rice supply amount control valve 3, and the opening/closing sensor 37. Before the start of work, the control valve 3 is closed and the drive motor is idle to measure and store the no-load current, and during the work, the no-load current is measured and stored. Then, when both of the detection sensors 35 and 36 detect that there is no unhulled rice, the drive motor rotates between the hulling rolls 4 and 4 by the forward and reverse rotation motor until the current becomes equal to the memorized no-load current value. Since the hulling device is connected in relation to each other so as to adjust the width of the hulling, when the unhulled rice is interrupted at the end of the work, even if there is still unhulled rice between the hulling rolls. Since the method immediately spreads the hulling rolls 4, 4 until the load current of the drive motor becomes equal to the no-load current value, this method not only eliminates the delay in spreading the hulling rolls 4, 4, but also can be carried out easily. be effective.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of the entire system, FIG. 2 is a rear view of FIG. 1, FIG. 3 is a flowchart of the present invention, and FIG. 4 is a circuit diagram of the present invention. Explanation of symbols: 1...hulling section, 2...hulled rice supply hopper, 3...hulled rice supply amount adjustment valve, 4...hulling roll, 5...window selection room, 6...suction blower, 7...
...Unripe rice removal conveyor, 8...Mixed rice receiving trough, 9...
...Mixed rice conveyor, 10...Different grain sorting section, 11
... Horizontal rotating cylinder, 12 ... Pot hole, 13 ... Flat part, 14 ... Finished rice receiving gutter, 15 ... Finished rice take-out conveyor, 16 ... Finished rice control valve, 17 ... Mixed rice take-out gutter , 18...Mixed rice removal conveyor, 19...
...Mixed rice supply gutter, 20...Mixed rice supply conveyor,
21...Grain supply port, 22...Mixed rice supply room, 2
3...Thrower, 24...Drop port, 25...Discharge side, 26...Finished rice receiving trough, 27...Finished rice conveyor, 28...Thrower, 29...Paddy rice take-out port, 3
0...Paddy rice receiving trough, 31...Paddy rice removal conveyor, 3
2...Thrower, 33...Paddy rice return room, 34...
Between rolls = automatic adjustment device, 35... sensor for detecting the presence or absence of unhulled rice, 36... sensor for detecting the presence or absence of returned paddy rice,
37... Open/close sensor.

Claims (1)

[Claims] 1 Hulling roll 4 driven by a drive motor
and a dissimilar grain sorting section 10 for sorting the hulled grains from the hulling section 1. The hulling rolls 4, 4 are formed so that the distance between the rolls can be automatically adjusted by a forward/reverse motor.
5, an unhulled rice supply amount regulating valve 3, and an opening/closing sensor 37 for the regulating valve 3, and the returning chamber 33 is provided with a returned unhulled rice presence/absence detection sensor 36, and a Presence detection sensor 35 and the returned paddy rice presence detection sensor 3
6, the unhulled rice supply amount control valve 3, and the opening/closing sensor 37. Before the start of work, the control valve 3 is closed and the drive motor is idle to measure and store the no-load current, and during the work, the no-load current is measured and stored. Then, when both of the detection sensors 35 and 36 detect that there is no unhulled rice, the drive motor rotates between the hulling rolls 4 and 4 by the forward and reverse rotation motor until the current becomes equal to the memorized no-load current value. A rice hulling device connected to each other in relation to each other so as to adjust the width of the grain.