JPH03118843A - Gap controller of husking roll in rice husking sorting machine - Google Patents

Abstract

PURPOSE:To prevent uneven wear of husking rolls by stopping automatic gap control of the husking rolls when the temp. of a husking part exceeds prescribed reference in the case of performing gap control of the husking rolls. CONSTITUTION:A rice husking sorting machine is provided with a husking part 1 which performs husking action of unhulled rice by a pair of husking rolls 3, a gap controlling means of the husking rolls described hereunder and a blended rice sorting part 11 which sorts the blended rice of unhulled rice and unpolished rice. The gap controlling means of the husking rolls adjusts and controls the gap of the husking rolls 3 by load current cf a motor 32 driving the husking rolls 3 or the husking ratio of husked rice without winnower which is husked in the husking part 1. A temp. detector 24 capable of detecting the temp. of the husking part 1 is relatively joined to a changeover means which changes over actuation or nonactuation of the above-mentioned gap controlling means of the husking rolls. When the detection temp. of this temp. detector 24 is made higher than prescribed value, the changeover means is changed over to the nonactuation side. As a result, temp. rise of the husking rolls 3 is prevented and uneven wear thereof is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a dehulling roll gap adjustment device for a hulling and sorting machine.

[Prior art] The machine is equipped with a shedding section and a mixed rice sorting section for sorting out the rice that has fallen off after being husked. There is a type that automatically adjusts and controls the gap.

[Problems to be solved by the invention] In such a conventional device, during hulling work, if the load on the hulling section does not reach a predetermined standard, the gap between the hulling rolls is gradually increased. In addition, if the phuting rate of the dropped rice does not reach the predetermined phuting rate, the gap between the dehulling rolls will be narrowed, the temperature of the dehulling rolls will rise, and the dehulling rolls will become unbalanced. A problem arises in that it wears out.

Therefore, in the present invention, when adjusting the gap between the pulverizing rolls, if the temperature of the pulverizing section exceeds a predetermined standard.

This is intended to prevent uneven wear of the depulping rolls by stopping the automatic gap adjustment of the depulping rolls.

[Means to solve the problem]

The technical means of the present invention for solving such technical problems includes a shredding section 1 that uses a pair of shredding rolls 3, 3 to shred the paddy, and a shredding unit 1 that drives the shredding rolls 3. motor 3
A dehulling roll gap adjusting means for adjusting and controlling the gap between the dehulling rolls 3 and 3 according to the load current of No. 2 or the shedding rate of the scraped rice scraped off in the dehulling section 1, and a mixed rice of paddy and brown rice is sorted. This rice hulling sorter is equipped with a mixed rice sorting section 11 that switches between operation and non-operation of a temperature detector 24 capable of detecting the temperature of the hulling section 1 and the above-mentioned hulling roll gap adjustment means. A dehulling roll gap of a rice hulling sorter characterized in that the switching means is connected in a related manner to the switching means, and when the temperature detected by the temperature detector 24 becomes higher than a predetermined value, the switching means is switched to the non-operating side. The structure of the adjustment device is adopted.

[Function and effect of the invention]

The hulled rice that has been hulled by the hulling rolls 3, 3 of the hulling section 1 is wind-screened to remove the chaff, and the mixed rice is supplied to the mixed rice sorting section 11 where it is sorted into unhulled rice and brown rice.

During such hulling and sorting work, the gap between the husking rolls 3.3 is determined by the load current value of the motor 32 that drives the husking rolls 3, 3, or the amount of rice removed by the husking section 1. Based on the pulp rate, the peeling rolls 3, 3 are removed by the peeling roll gap adjusting means.
The hulling and sorting work is carried out while the gap between the hulls is adjusted and controlled, and the temperature of the hulling section 1 is measured by the temperature detector 24.

During such work, if the temperature detector 24 detects that the temperature of the stripping section 1 exceeds a predetermined value, the switching means for switching between activation and non-operation of the stripping roll gap adjustment means is deactivated. side, the gap between the rolls 3, 3 is widened by a predetermined distance, the load current value of the motor 32 that drives the scraping rolls 3, 3 is lowered, or It is possible to lower the shedding rate of the scraped rice, prevent the temperature rise of the dehulling rolls 3, 3, and prevent uneven wear of the dehulling rolls 3.3.

〔Example〕

Embodiments of the invention shown in the drawings will be described below.

First, the configuration of the embodiment will be explained. , 1 is a shredding section, and this shredding section 1 is connected to a paddy hopper 2 . A pair of depu rolls 3
．． It is made up of 3rd grade. Reference numeral 4 denotes a sloughed rice winding path, in which the sloughed rice from the husking section 1 is sorted by the sorting wind generated by the suction fan 5 in front, and the rice husks are passed from the suction fan 5 through the dust exhaust pipe 6 to the machine. The mixed rice of brown rice and paddy is discharged to the outside and is supplied falling to the sliding rice receiving trough 7 below. Amount of fallen rice 16A
The mixed rice that has fallen into 7 is fried by a mixed rice grain lifting machine 8.

After passing through the mixed rice hopper 9 on the side of the rotating sorting cylinder 11, the rice is fed into the supply gutter 14.
The structure is such that the material is transported to the starting end of the

Reference numeral 10 denotes a sorting case. Inside the sorting case 10, a rotary sorting tube 11 having a large number of potholes on its inner circumferential surface is arranged so that it can rotate around a horizontal axis. right side)
and the discharge side end (left side in FIG. 1) of the drive roller 12.
, 12, and is rotatably supported. This rotating sorting tube 1
1, a feed trough 14 with a feed helix 13 and a finishing rice trough 16 with a finishing rice helix 15 are horizontally suspended.

In arranging the supply 4i1i14 and the finished rice gutter 16 inside the rotating sorting cylinder 11, the supply gutter 14 is placed on the raking side of the single-rotation sorting cylinder 11 that rotates from below to above, as shown in FIG. , the finishing rice gutter 16 is disposed on the side of the rotary sorting tube 11 that rotates from above to below, and the one-rotation sorting tube 11
The mixed rice scooped up by the pot hole falls into the supply gutter 14, and is configured to be transferred to the terminal side of the feeder 4i114 by the feed helix 13, and the feed gutter 14 also functions as a mixed rice receiving gutter. Also serves as.

The discharge side end of the finishing rice gutter 16 is connected to the finishing rice receiving trough 19 via the finishing rice flow lower tube 17 and the finishing rice grain plate 18, and the brown rice is passed through the finishing rice flow lower tube 17 and the finishing rice grain plate 18. The brown rice that is screened while falling from 18 to the finished rice barley @@19 and flows down to the finished rice receiving trough 19 is taken out of the machine via the finished rice lifting machine 20.

A paddy receiving price 21 is provided below the sorting end of the rotary sorting tube 11, and the grains mainly consisting of unhulled rice that have flown to the sorting end side of the rotary sorting tube 11 flow to this paddy receiving price 21. , the grain is fried by the paddy hoisting machine 22, and sent to the threshing section 1 via the paddy return hopper 23.
This is a configuration that is reduced to .

Reference numeral 24 denotes a temperature detector for detecting the temperature of the stripping section 1, and in this embodiment, it is attached to the outer periphery of a case 25 that covers the stripping rolls 3, 3. This temperature sensor 24 is
Detecting the temperature of the removing part 1 or removing the removing roll 3
, 3 can expand and detect signs of uneven wear. The temperature detector 24 may be placed inside the case 25, or an optical detector ( (not shown) may also be used.

The paddy supply control valve 26 on the rice processing section 1 side is configured to be able to be opened and closed freely, and a paddy supply potentiometer 27 is attached to the shaft portion of the paddy supply control valve 26. 28 is a paddy supply control motor that adjusts the paddy supply control valve 26, and when the paddy supply control motor 28 rotates forward or backward,
The paddy supply control valve 26 is opened and closed via an adjustment threaded rod 29.

Reference numeral 30 denotes a known gap adjustment means for adjusting the gap between the scraping rolls 3, 3, and 31 is a gap control motor that adjusts the gap between the scraping rolls 3, 3 by rotating forward or reverse. , the load current value of the main motor 32 that drives the hulling roll 3.3 (this main motor may drive only the hulling section 1 or the entire hulling sorter);
Alternatively, it is configured to be controlled by a command from the calculation control unit 33 based on the skipping rate detected by a skipping rate detector (not shown).

And this temperature sensor 24. Paddy supply potentiometer 27. Detection information from the load current detector 34 and shedding rate detector 35 of the main motor 32 is transmitted via an input interface 36 to a calculation control unit 33 (hereinafter simply referred to as CPU) with a built-in CPU that has a memory function, calculation function, and control function. ). Furthermore, a paddy supply control motor 289 and a gap control motor 31 are connected to the CPU 33 via an output interface 37.

Next, the control contents of the CPU 33 will be explained.

■At the start of hulling work, the following gap setting for the dehulling rolls 3°3 is made. That is, the main switch (not shown)
When turned ON, a gap open signal is output to the gap control motor 31 to open the gap between the depulping rolls 3 and 3, and the load current value of the main motor 32 is detected by the load current detector 34, and the load current When it is detected that the value remains unchanged, a closing command signal is output to the gap control motor 31, the gap between the plowing rolls 3 and 3 is narrowed, the load current value is increased, and the plowing roll 3 is closed.
, 3, the de-pull rolls 3°3 are opened for a predetermined period of time, and a predetermined gap between the de-pull rolls is set.

■Next, when shifting to load current control, the detection information from the load current detector 34 is compared with adjustable setting reference information in the CPU 33, and if the detected load current value is higher than the reference information, a command from the CPU 33 is When the dehulling roll gap is opened and the detected load current value is lower than the reference information, the hulling operation is continued while the dehulling roll gap is narrowed by a command from the CPU 33.

In addition, when shifting to pudding rate control, the pudding rate detector 3
The detection information from 5 is compared with the adjustable setting standard information in the CPU 33, and if the detected arm pull rate is higher than the standard information, the de-pulling roll gap is opened by a command from the CPU 33, and If the detection rate is low,
While the gap between the de-pulling rolls is being narrowed by a command from the CPU 33.

Continue rice hulling work.

In addition, when controlling the load current or the shedding rate for the gap between the pulping rolls, the load current may be controlled for a predetermined time after the start of work, and then the process may be shifted to the pulping rate control.

■The detection information of the temperature detector 24 is compared with the setting standard information, and if the detected temperature is higher than the standard information, the CPU 3
3, the inner roll open signal is output, the gap between the de-pulling rolls 3 and 3 is controlled to the open side by a predetermined gap, and the detection information of the temperature detector 24 is compared with the set standard information, and the gap is adjusted from the standard information. If the detected temperature is low, the CPU 33 outputs a de-pulling roll close signal to the gap control motor 31, and the de-purging rolls 3,
The gap No. 3 is adjusted and controlled to a predetermined gap close side.

■The gap between the de-pulling rolls is opened by a predetermined gap by the step (■), and then, after a predetermined period of time, the detection information of the temperature detector 24 is sent to the CPU 3.
3, the detection information of the temperature detector 24 is compared with the setting standard information, and if the detected temperature is higher than the standard information, the CPU 33 outputs a command signal to cancel the load current value control or the shedding half control. When the load current value control or the half-skipping control is canceled, and the load current control or half-skipping control is performed according to the minimum standard, and the temperature of the scraping section 1 returns to below the reference temperature, the above-mentioned The load current value control or the half-off control is restarted.

In addition, the shedding rate was set to 80% (not shown).

When adjusted to 85% or 90%, the reference information of the CPU 33 is switched accordingly.

Furthermore, when the temperature detector 24 detects a temperature higher than the set standard, the paddy supply control valve 26 may be adjusted to the closed side instead of opening the gap between the dehulling rolls described above.

Next, the operation of the embodiment will be explained. When carrying out hulling work, raw rice is supplied to the rice hopper 2, and each rotating part of the hulling and sorting machine is driven. Then, the paddy supplied from the paddy hopper 2 to the husking section 1 is subjected to the husking action, and the husked rice is wind-selected in the hushu rice wind selection path 4 located below.

The rice husks are discharged from the dust exhaust pipe 6 to the outside of the machine. The mixed rice of brown rice and paddy is dropped and supplied to the sliding rice receiving trough 7, and then passed through the mixed rice hopper 9 in the mixed rice lifting machine 8 to the supply trough 1 on the side of the rotary sorting cylinder 11.
The raw material is lifted up and supplied to the starting end side of the rotary sorting tube 11 by the supply helix 13 in the supply gutter 14 .

Next, the rotary sorting tube 1, which is rotating clockwise in FIG.
The mixed rice is raked up by the hole in the pot 1, brown rice with short grain length is raked up high and falls into the finished rice 4ilIt16, paddy with long grain length and some brown rice are raked up low,
It falls into the supply gutter 14 and is sorted. The unsorted mixed rice that has fallen into the supply gutter 14 is fed again into the rotary sorting tube 11 from the conveyance end of the feed gutter 14 by the feed helix 13, and is re-sorted.

In addition, the finished rice that has fallen into the finishing rice gutter 16 is conveyed to the finishing rice helix 15 to the rice flow lower cylinder 17, and is transferred to the finishing rice grain plate 1.
8 and falling into the finished rice receiving trough 19, it is sorted by a sorting wind and taken out of the machine by the finished rice lifting machine 20.

The grains mainly composed of paddy after sorting sent to the discharge side end of the rotary sorting tube 11 flow down to the lower paddy receiving side 21, are fried by the paddy lifting machine 22, and sent to the reduced paddy hopper 23. After that, it is again supplied to the shedding section 1, where it is subjected to the shedding action.

The hulling and sorting work is carried out as described above.
During work, the load current detector 34 detects the load current value at predetermined time intervals, and if the detected load current value is higher than the reference current value, a gap is opened between the de-pulling rolls, and the load current value is detected from the reference current value. When the load current value is low, the hulling operation is continued while the gap between the hulling rolls is narrowed, and in the case of half-hulling control, the hulling rate detector 35 detects When the de-pulling rate is detected and the detected arm rate is higher than the standard arm rate, a gap between the de-pulling rolls is opened, and
When the detected arm ratio is lower than the reference arm ratio, the hulling operation continues while the dehulling roll gap narrows.

The temperature of the stripping section 1 is detected by the temperature sensor 24, and if the detected temperature is higher than the reference temperature, the load current control or half stripping control is canceled and the stripping roll gap is moved to the predetermined gap side. Adjusted and also.

When the temperature detected by the temperature detector 24 is lower than the reference temperature, load current control or half-skipping control continues as it is, preventing the temperature of the scraping section 1 from rising above a predetermined level, and removing the steam. This can prevent uneven wear of the rolls 3, 3.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a cutaway side view, FIG. 2 is a cutaway rear view, FIG. 3 is a cutaway side view, and FIG. 4 is a block circuit diagram. 4 and 5 are flowchart diagrams. 1 Slipping section 3 Slipping roll 5 Suction fan 7 Sliding rice receiving trough Paddy hopper Sliding rice wind sorting path Dust exhaust pipe Mixing rice grain lifting machine 0 11 2 4 6 8 0 2 4 6 7 8 9 0 1 3 4 6 7 Sorting case rotating sorting tube (mixed rice sorting section) Drive roller 13 Supply helical supply M 15 Finished rice helical finishing rice trough
17 Finished rice flow lower tube Finished rice flow grain plate 19 Finished rice receiving trough Finished rice grain lifting machine 21 Paddy receiving trough and paddy lifting machine 23 Paddy return hopper temperature sensor 25 Case paddy supply control valve Paddy supply potentiometer Paddy supply control motor adjustment screw Slipping roll gap adjustment means Gap control motor 32 Main motor (motor) calculation control unit (CPU) Load current detector 35 Slipping ratio detector input interface output interface Figure 2 Figure 6 Figure 5 1 Heisei year time

Claims (1)

[Claims] (1) A husking section 1 that husks paddy using a pair of husking rolls 3, 3, and a motor 32 that drives the husking rolls 3, 3.
a dehulling roll gap adjusting means for adjusting and controlling the gap between the dehulling rolls 3 and 3 according to the load current of the dehulling unit 1 or the shedding rate of the scraped rice scraped off in the dehulling section 1; This is a rice hulling sorting machine equipped with a mixed rice sorting section 11, which switches between activation and non-operation of a temperature detector 24 capable of detecting the temperature of the hulling section 1 and the above-mentioned hulling roll gap adjustment means. This temperature sensor 2 is associated with a switching means.
4. A dehulling roll gap adjustment device for a hulling sorter, characterized in that when the detected temperature in No. 4 becomes higher than a predetermined value, a switching means is switched to a non-operating side.