JPH0675684B2 - Huller - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hulling machine provided with a removing roll capable of automatically adjusting a roll gap.

[Conventional technology]

The roll gap between the pair of dep rolls can be adjusted to open and close.The roll gap between the dep rolls in the non-contact state is closed and adjusted, and the contact between the pair of dep rolls is detected by detecting an increase in the load current of the drive motor. The condition is detected, and then the roll gap is opened and adjusted for a predetermined time, and the roll gap of the removing roll is adjusted and set to the predetermined gap, and then the depreading roll is manually or automatically adjusted to correspond to the work efficiency. There is a method in which the paddy supply amount is adjusted, and the paddy work is performed by controlling the load current value of the drive motor or adjusting the roll gap on the basis of the removal rate according to the paddy supply amount.

[Problems to be solved by this invention]

However, in the roll gap adjusting device for such a removing roll, even when restarting the hulling work after interrupting the hulling work, the setting adjustment of the roll gap in the standard paddy supply state described above,
Also, since the roll gap is adjusted in relation to the amount of paddy supplied for work efficiency, it takes a lot of time to adjust and set the roll gap, and it takes a lot of time for the hulling state to stabilize. There was a problem that work efficiency did not improve.

[Means for solving problems]

Therefore, the present invention intends to improve the efficiency of the hulling work by rapidly adjusting the roll gap of the removing roll at the time of restarting the hulling work. The technical measure is to adjust the roll gap between the rolls 1 and 1 to the roll gap at the end of the previous work all at once.

[Operation and effect of the invention]

When the paddy of the paddy funnel 18 is supplied to the pair of depulling rolls 1, 1,
While being hulled by the removing rolls 1 and 1, a pair of removing rolls
The roll gap of 1,1 is based on the load current value of the drive motor,
Alternatively, the dehulling rate of the scrapped rice is detected by the paddy rice discrimination sensor, and is adjusted based on the dehulling rate standard.

In such hulling work, when the end of the hulling work is detected by the work end detecting means, the unloaded state of the removing rolls 1, 1 at the end of the hulling work is detected by the work end load current value detecting means. The load current value of the driving motor is detected, and then the roll gap close adjusting means at the end of work adjusts the open roll gap at the end of work to the contact state.
Next, the work end closing adjustment time measuring means measures the operation time of the work end roll gap closing adjusting means, the time is stored in the time storage device, and the work end roll gap opening adjusting means makes contact. The roll gap in the state is opened to a predetermined gap.

Further, when the hulling operation is restarted, the restart roll gap close adjusting means closes and adjusts the open roll gap to the contact state, and then the restart roll gap open adjusting means adjusts the contact roll gap to the work state. The opening adjustment is performed for the time measured by the closing adjustment time measuring means at the end, the roll gap at the end of the previous hulling operation is adjusted all at once, the shutter 19 is opened, and the same hulling operation as before is restarted.

As described above, according to the present invention, when the hulling work is restarted, the roll gaps of the removing rolls 1 and 1 are adjusted and set all at once up to the roll gap at the end of the work. Compared with the one in which the initial roll gap is set in the standard paddy supply state and the roll gap is adjusted according to the supply amount of paddy, the roll gap adjustment becomes quicker, and the same hulling work as the previous time is resumed quickly. As a result, the efficiency of hulling work is improved.

〔Example〕

An embodiment of the present invention will be specifically described below with reference to the drawings.

First, the configuration will be described. The huller 2 is equipped with a removing device 3 on the upper front side of the machine body, and a mixed rice sorting device 4 with a cylindrical rotary sorting machine having a large number of recesses on the inner peripheral surface installed on the upper rear side. The wind selecting device 5 is arranged in the lower part of the machine body.

The removing device 3 has a structure in which a pair of removing rolls 1 and 1 that rotate in the arrow direction are arranged in a casing 6. Then, of the removing rolls 1 and 1, one removing roll A is erected on the intermediate portion of the movable plate 7 whose lower part is pivotally supported,
A screw portion 9 engraved on one end of the adjusting shaft 8 is screwed into the upper end of the movable plate 7. Further, a rotating case 11 that rotates concentrically with the adjusting shaft 8 is arranged on the outer periphery of the end of the adjusting shaft 8, and a rib 12 formed on the inner peripheral surface of the rotating case 11.
And the pin 10, which is inserted and locked in the other end of the adjusting shaft 8, is configured to be engageable. An adjusting drive gear 15 is detachably fixed to the side end of the rotating case 11 with a screw, and the adjusting drive gear 15 is configured to mesh with the motor gear 14 attached to the shaft end of the geared motor 13. There is. 16
Is a restriction bolt for restricting movement of the rotating case 11 in the terrace direction.

With this configuration, when the geared motor 13 rotates, the motor gear 14 rotates, and then the rotating case 11 and the rib 12 rotate via the adjustment drive gear 15 meshing with the motor gear 14. Further, the adjusting shaft 8 is rotated via the pin 10.

When the geared motor 13 rotates forward, the movable plate 7
2 moves in the direction of arrow A in FIG. 2 around the pivotal part, and the removing roll A also moves in the same direction to widen the gap between the removing roll and the other removing roll. On the contrary, when the geared motor 13 is rotated in the reverse direction, the movable plate 7 and the removing roll A are moved in the direction opposite to the arrow A to narrow the gap between the removing rolls or bring them into contact with each other.

On the upper side of the casing 6, a paddy funnel 18 having a paddy guide path 17 at its lower end is detachably attached. A shutter 19 for opening and closing the paddy guide path 17 is provided below the paddy funnel 18.
Is provided so that it can be moved back and forth in the front-back direction. It should be noted that the outer wall of the paddy guide path 17 is provided with a micro-stitch 20 that is turned “ON” by moving the shutter 19 to the “closed” position and turned “OFF” by moving the shutter 19 to the “open” position. Also, paddy funnel
At the bottom of 18, when the supplied paddy falls below a certain amount, "O
A micro switch 21 is provided, which becomes “N” and turns “OFF” when the amount exceeds a predetermined amount.

The mixed rice selected by the wind selecting device 5 is fried by the mixed rice thrower 22 and supplied to the mixed rice chamber 23 communicating with the rotary sorter of the mixed rice sorting device 4. Also, the mixed rice sorting device 4
The brown rice sorted by the rotary sorting machine is wind-sorted by the lower wind-sorting device 5, and then is fried by the finishing rice thrower 24 and discharged out of the machine. In addition, the mixed rice containing a large amount of paddy selected by the rotary sorter flows into the paddy thrower 25 and is fried and reduced in the paddy funnel 18.

Next, the block circuit of FIG. 3 will be described. 26 is
An arithmetic control unit (hereinafter referred to as a CPU) of a microcomputer (not shown) having a memory (not shown) capable of storing data, which performs arithmetic logic operation and comparison operation. The information input to the CPU 26 via the input interface 27 is the microswitch 2
Shutter opening / closing information according to "ON" or "OFF" of 0, rice presence / absence information within the rice funnel 18 depending on "ON" or "OFF" of the microswitch 21, a motor (drive) output from the current transformer (CT) 28 ( (Not shown) load current value information and the paddy / rice discrimination output from the paddy rice discrimination sensor 29 that takes out a part of the mixed rice of paddy and brown rice dewed by the depuffing device 3 and determines whether it is paddy or brown rice There is information. Also via the input interface 30
The information input to the CPU 26 is the removal rate setting information selected by the removal rate setting device (not shown). The drive command signal output from the CPU 26 via the buffer circuit 31 includes a command signal for rotating the gate motor 13 in the forward or reverse direction.

Next, the operation will be described with reference to the flowcharts of FIGS. 4 and 5. First, when paddy is supplied to the paddy funnel 18,
The micro switch 21 is turned on by the paddy pressure. Next, the motor is started to drive the rotating parts of the machine body, and then the shutter 19 is pulled in the opening direction to open the paddy guide path 17. At this time, the micro switch 20 is turned “ON”, and the paddy that falls through the paddy guide path 17 is the casing 6
It is removed by the dep rolls 1 and 1 that go inside and rotate in the direction of the arrow. Then, the scraped rice is dropped and supplied to the wind selecting device 5 below, light rice husks and dust are discharged to the outside of the machine, and the mixed rice of heavy rice and brown rice drops to the bottom of the wind selecting device 5, and then appropriately. It is transported to one side by the transportation means of
At 22, it is fried in a mixed rice room 23.

Next, the mixed rice is fed into a rotary sorter to be sorted into predetermined grains (for example, mixed rice and finished rice), and the finished rice and mixed rice are sent to the wind sorting device 5 by an appropriate means, and a large amount The mixed rice containing the paddy is fried in the paddy funnel 18 with the paddy thrower 25, and is subjected to the removing treatment again. In addition, the finished rice and the mixed rice are subjected to a wind-selecting action in the lower wind-separation device 5, respectively, and the finished rice is discharged out of the machine by the finished rice sloa 24, and the mixed rice containing a large amount of brown rice is mixed rice. It is fried again in the mixed rice chamber 23 by the thrower 22 and re-sorted by the rotary sorter.

In such a paddy sorting operation, the paddy in the paddy funnel 18 becomes less than a predetermined amount, the micro switch 21 is turned on, or the shutter 19 is moved in the closing direction to close the paddy guide path 17. When the micro switch 20 is turned on, it is judged that the work has been completed (including work interruption) (step
10), the load current value of the drive motor is measured via C.T28 (step 20). Next, from the CPU 26 to the buffer circuit 3
A reverse roll gap close command signal is output to the geared motor 13 via 1 (step 30), and then the timer is reset / started (step 40). Then, the load current value of the drive motor measured at predetermined time intervals and the load current value measured in step 20 are compared and calculated, and when an increase in the load current value is detected (step 50), the time (TM) between them is calculated. Read and memorize (step 60). Then, the output of the reverse drive command signal to the geared motor 13 output from the CPU 26 is stopped (step 70), and then
The CPU 26 outputs a roll gap open command signal for normal rotation to the geared motor 13 for a certain period of time to open the roll gap of the removing rolls 1 and 1 (step 80). Therefore, take off roll 1,1
Can be prevented from stopping in a contact state, and abnormal noise and wear due to the contact with the removing roll can be prevented at the time of restart.

Next, resumption of the hulling work after the interruption will be described. The load current of the drive motor is measured (step 90), and the CPU26
Outputs a forward drive command signal to the geared motor 13 to open and adjust the roll gap of the removing rolls 1 and 1 (step 10
0). Then, when the load current value of the drive motor detected from C.T28 is input to the CPU 26 (step 110), the detected load current value and the load current value measured in step 90 are compared and calculated to determine the load. It is determined whether or not the current value has changed (step 120). Next, when no change in the detected load current value is detected, the output of the forward rotation drive command signal to the guard motor 13 is stopped (step 130), and then the guard motor 1
A reverse rotation drive command signal is output to 3 and the roll gaps of the removing rolls 1 and 1 are closed and adjusted (step 140). And the CPU 26
The detected load current value of the drive motor output from C.T28 and the load current value of the drive motor in the "open" state of the removing rolls 1, 1 in step 130 are compared and calculated, and Detect increase in load current value (step 15)
0), that is, at this time, the removing rolls 1, 1 are judged to be in a slight contact state, and the CPU 26 stops the output of the reverse drive command signal to the geared motor 13 (step 160), and then
A forward rotation drive command signal is output to the geared motor 13 to open and adjust the roll gap between the removing rolls 1 and 1 (step 170).
Next, the CPU 26 sets the time (TM) in step 60 of FIG.
Read, and set a timer (not shown) (step 180) and start the timer (step 1
90). Then, the CPU 26 determines whether or not the time is up (step 200), and when it is determined that the time is up,
The output of the forward drive command signal to the geared motor 13 is stopped (step 210). Therefore, at this time, the roll gap between the removing rolls 1 and 1 can be quickly returned to substantially the same gap as the roll gap between the removing rolls 1 and 1 when the previous hulling operation was stopped.

Next, when the shutter 19 is opened (step 220), the paddy drops to the removing rolls 1 and 1 to be removed, and the same amount of paddy as the previous time is supplied to the removing rolls 1 and 1. Then, the same hulling and sorting work as last time is restarted. During the predetermined time after the start of work, the load current value of the drive motor is read and the roll clearance of the removing rolls 1 and 1 is adjusted according to the load current value standard. The depletion rate is calculated by identifying paddy and rice from the grain, and the calculated depletion rate is compared with the control reference depletion rate to control the depletion rate by adjusting the roll gap of the depleting rolls 1 and 1. Transition.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view of a huller, FIG. 2 is a sectional view of a removing device, FIG. 3 is a block circuit diagram, and FIG. FIG. 5 is a flowchart. [Explanation of reference numerals] 1 …… Dropping roll 2 …… Hulling machine 3 …… Peeling device 4 …… Mixed rice sorting device 5 …… Wind sorting device 6 …… Casing 7 …… Movable plate 8 …… Adjustment shaft 9 …… Screw part 10 …… Pin 11 …… Rotating case 12 …… Rib 13 …… Geared motor 14 …… Motor gear 15 …… Adjusting drive gear 16 …… Regulating bolt 17 …… Rice guideway 18 …… Rice funnel 19 …… Shutter 20 …… Micro switch 21 …… Micro switch 22 …… Mixed rice Slower 23 …… Mixed rice chamber 24 …… Finishing rice Slower 25 …… Rice Slower 25 26 …… Computational control unit (CPU) 27 …… Input interface 28 …… Current transformer (CT) 29 …… Paddy rice discrimination sensor 30 …… Input interface 31 …… Buffer circuit

Claims (1)

[Claims] 1. A hulling machine having a hull funnel 18, a pair of depreading rolls 1,1, and a roll gap adjusting means for opening and closing the roll gap of the deploping rolls 1,1 for finishing the hulling operation. Work completion detecting means for detecting, load current value detecting means for detecting the load current value of the drive motor, and the roll gap in the open state are closed and adjusted to the contact state, and then,
Roll gap initial setting means for opening the roll for a predetermined time to set the initial roll gap, and the load current in the unloaded state of the take-off rolls 1, 1 of the drive motor due to the work end judgment of the work end detection means. A load current value detecting means at the end of work for detecting a value, a roll gap close adjusting means at the end of work for adjusting the closing from the roll gap to a contact state at the end of work, and a closing adjustment time of the roll gap close adjusting means at the end of work A work end closing adjustment time measuring means, a work end roll gap opening adjusting means for opening a roll gap closed-adjusted to a predetermined gap by the work end roll gap closing adjusting means, and the work end A time storage device for storing the time measured by the time closing adjustment time measuring means, and a restart roll gap closing adjusting means for closing and adjusting the roll gap in the gap open state to the contact state when restarting the hulling work, From the roll gap opening adjusting means for restarting, which adjusts the roll gap closed to a contact state by the roll gap closing adjusting means at restart for the time measured by the closing adjustment time measuring means at the end of work. Become a huller.