JPS63166437A - Rice huller - 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 [Industrial Field of Application] The present invention relates to a hulling machine equipped with a dehulling roll whose roll gap can be automatically adjusted.

[Conventional technology]

The roll gap between the peeling rolls is set by detecting contact or non-contact of the peeling rolls from the detected current value of the motor.

[Problems to be solved by the present invention] However, with this method, when one work is interrupted and then restarted, the roll gap must be set each time, so it takes time to adjust. This requires a lot of work, making it impossible to improve work efficiency.

(Means for Solving the Problem) The present invention aims to provide a rice hulling machine that can improve work efficiency by quickly adjusting the roll gap of the dehulling rolls, and is capable of improving work efficiency. Technical measures were taken.

That is, it is equipped with a work completion detection means that can detect the completion of work and a roll gap measurement means that can measure the roll gap of the de-pulling roll 1 at the time of completion of the work, and the roll gap measurement means can be used to measure the roll gap when re-working. The huller is configured to start with a roll gap of

[Effect]

When the work completion detection means detects the end of the work, the depulping roll gap measuring means measures the roll gap of the depudding roll 1. Then, during rework, the roll gap is started using this measured roll gap.

〔effect〕

Since rework is started at this roll gap, the roll gap of the plow removal rolls 1 can be easily adjusted, and the work efficiency of the poop processing operation can be improved.

〔Example〕

Hereinafter, one embodiment of the present invention will be specifically described based on the drawings.

First, to explain its configuration, the hulling machine 2 is made by mixed rice sorting &! 4, and a wind selection device 5 at the bottom of the fuselage. The stripper W13 is provided with a stripper roll 1 installed in the casing 6 so as to be rotatable and sortable in the direction of the arrow. Among the de-purifying rolls 1, one de-purifying roll A is installed in the middle part of a movable plate 7 whose lower part is pivotally connected. Then, the movable plate 7
The upper end portion is screwed into a threaded portion 9 carved into one end portion of the adjustment shaft 8. Further, a pin 10 is provided at the other end of the adjustment shaft 8.
Both ends of the pin 10 are provided so as to be able to engage with ribs 12 formed on the inner surface of a rotating case 11 that houses the ends of the adjustment shaft 8. An adjustment drive gear 15 that meshes with a motor gear 14 attached to the shaft end of a geared motor 13 is removably fixed to the side end of the rotating case 12 with a screw. Reference numeral 16 denotes a regulating bolt that regulates the movement of the rotating case 11 in the thrust direction.

Therefore, when the geared motor 13 rotates, this rotational power is transmitted to the rotating case 11 via the adjustment drive gear 15 meshing with the motor gear 14, so that the rotating case 7
At the same time, the rib 12 rotates, and the pin 10 and this pin 10
The adjusting shaft 8, which is integrally constructed with the above, is rotated. When the geared motor 13 rotates in the forward direction, the threaded part of the movable plate 7 moves in the direction of arrow A around the pivot part, so the de-pulling roll A also moves in the same direction and moves in the other direction. On the other hand, when the geared motor 13 reverses, the movable plate 7 and the rolling roll A move in the direction opposite to the direction of arrow A to narrow the gap between the rolls and prevent contact between the rolls. That's what I do.

A paddy funnel 18 having a paddy guide path 17 at its lower end is detachably attached to the upper side of the casing 6. and,
A shutter 19 for opening and closing the paddy guide path 17 is provided at the bottom of the paddy funnel 18 so as to be movable in the direction of the arrow. In addition, when the shutter 19 is in the "closed" position, there is an "ON" mark on the outer wall of the paddy guide path 17.
”, and a microswitch 20 that becomes roFFJ in the “open” position is provided. In addition, at the bottom of the rice funnel 18, there is a roFF switch that turns on when the rice supplied to the rice temperature 4-18 falls below a predetermined amount, and when the amount exceeds the predetermined amount.
A microswitch 21 that becomes J is provided.

22 is a mixed rice thrower which fries the mixed rice air-selected by the air-selecting device 5 into the mixing rice chamber 23 communicating with the rotary sorting machine, and 24 is the finished rice air-selected by the air-selecting device @5. The finished rice thrower 25 is a paddy thrower that lifts the mixed rice containing a large amount of paddy discharged from the rotary sorter into the paddy funnel 18.

To explain the block circuit of FIG. 3, 26 is an arithmetic control unit (hereinafter referred to as CPU) of a microcomputer (not shown) having a memory (not shown) capable of storing data. Logical operations and comparison operations are performed, and the information input to the CPU 26 via the input interface 27 includes shutter opening/closing information based on rONJ rOFFJ of the microswitch 20 and information on the presence or absence of paddy in the paddy funnel 18 based on roNJ rOFFj of the microswitch 21. Information and current transformer (C, T) 2
Load information of a motor (not shown) which is a driving source outputted from 8 and a part of the mixed rice of paddy and brown rice that has been husked by the husking device 3 is taken out and unhulled rice discrimination is performed to determine whether it is paddy or brown rice. There is paddy/rice discrimination information output from the sensor 29. Also,
The information inputted to the C:PU 26 via the input interface 30 includes skipping rate setting information selected by a skipping weight setting device (not shown). The drive command signal outputted from the CPU 26 via the buffer circuit 31 includes a command signal for rotating the geared motor 13 forward or reverse.

The operation will be explained using the flowcharts of FIGS. 4 and 5. First, paddy is fed into the paddy funnel 18. Then, the microswitch 21 turns rONJ due to the initial pressure.
become. Next, the motor is started to drive each rotating part of the machine body, and then the shutter 19 is pulled in the direction of the arrow to open the paddy guide path 17. At this time, the microswitch 20 becomes rONJ, and the paddy falling through the paddy guide path 17 enters the casing 6, falls onto the dehulling roll 1 rotating in the direction of the arrow, and undergoes the dehulling process. Light rice husks, dust, etc. that have fallen into the wind sorting device 5 below are discharged outside the machine, but the heavy rice mixed with paddy and brown rice falls to the bottom of this wind sorting device 5 and is then transferred to an appropriate conveyance means. The grains are then conveyed to one side and fried into the mixing rice chamber 23 by the mixing rice thrower 22. Then, this mixed rice is fed into a rotary sorter and sorted into predetermined grains (for example, mixed rice and finished rice), and the finished rice and mixed rice are sent into the wind sorting device 5 by an appropriate means, but in large quantities. Mixed rice containing paddy is transferred to paddy funnel 1 using paddy thrower 25.
The grain is fried within 8 days and undergoes the husking process again. In addition, the finished rice and mixed rice are each subjected to wind selection, and the finished rice is discharged outside the machine by the finished rice thrower 24, but the mixed rice containing a large amount of brown rice is mixed again by the mixed rice thrower 22. Rice room 23
The grain is fried.

In such hulling and sorting work, the microswitch 21 is turned on when the number of paddy grains decreases by more than a predetermined amount, or the shutter 19 is moved in the direction opposite to the arrow direction to close the paddy guide path 17. When the microswitch 20 becomes roNJ, it is determined that the work is completed (including work interruption) (step 10), and the motor current is measured via C and T28 (step 2o). After outputting a reverse drive command signal to the geared motor 13 via (step 30), the timer is reset and started (step 40), and the motor current value measured at predetermined time intervals and the motor current value measured in step 20 are output. When the current values are compared and calculated and it is determined that there has been an increase in the current (step 50), the time (TM) during this time is read and stored (step 60).

After stopping the output of the reverse drive command signal to the geared motor 13 from the CPU 26 (step 70)
, the CPU 26 outputs a forward rotation drive command signal to the geared motor 13 for a certain period of time to open the roll gap between the rolls 1 (step 80).

Therefore, it is possible to prevent the de-pulp roll 1 from stopping in the contact state, and therefore, it is possible to prevent abnormal noise from being generated when restarting the de-pudding roll or wear of the de-pulp roll.

Next, to explain the case where interrupted work is started, the load current of the motor is measured (step 90).
The CPU 26 outputs a forward rotation drive command signal to the geared motor 13 to open a roll gap between the de-pulling rolls 1. (Step 100), and the CPU 26 compares and calculates the motor load current output from C and T28 (Step 110) with the load current measured in Step 90, and determines whether there is a change in the current (Step 110). 120). Next, when it is determined that there is no change in the load current, the output of the forward rotation drive command signal to the geared motor 13 is stopped (step 13).
0) Since a reverse rotation drive command signal is output to the guard motor 13, the roll gap of the depulping roll 1 is closed (step 140).

Then, the CPU 26 compares and calculates the motor load current output from C and T28 with the motor load current in the "open" state of the plow roll 1 in step 130, and determines whether there is an increase in the motor load current. (Step 1
50). Then, when it is determined that the current has increased (that is, the depulping roll 1 is in a slight contact state at this time), the CPO
26 stops outputting the reverse drive command signal to the geared motor 13 (step 160), and then
A normal rotation drive command signal is output to the CPU 26 to open the roll gap of the scraping roll 1 (step 170).
reads the time (TM) and sets a timer (not shown) (step 180), then starts this timer (step 190), and the CPU
Step 26 determines whether or not there is a time-up (step 200).
), if it is determined that the time is up, the geared motor 1
Stop outputting the forward rotation drive command signal to 3 (step 2
10) Therefore, at this time, the roll gap of the de-pudding rolls 1 can be made substantially the same as the roll gap of the de-pudding rolls 1 before the start of rework. therefore.

Since the roll gap between the dehulling rolls 1 can be quickly adjusted during work, the efficiency of the hulling work can be improved.

Next, if the shutter 19 is opened (step 220),
The paddy falls onto the dehulling roll 1 and is dehulled, and for a predetermined period of time after the start of work, load control is performed by reading the load current of the motor and adjusting the roll gap of the dehulling roll 1. Thereafter, paddy and rice are distinguished from the sample grains, a ratio is calculated, and a shift is made to a hulling ratio control in which the roll gap of the hulling roll 1 is adjusted based on this hulling ratio.

[Brief explanation of the drawing]

The figure shows one embodiment of the invention. Figure 1 is a side view of the hulling machine, Figure 2 is a sectional view of the hulling device,
FIG. 3 is a block circuit, and FIGS. 4 and 5 are flowcharts. 1 indicates a deflated roll.

Claims (1)

[Claims] The roll gap measurement means is equipped with a work completion detection means capable of detecting the completion of work and a roll gap measurement means capable of measuring the roll gap of the de-pulling roll 1 at the time of completion of the work, and the roll gap measurement means is used to measure the roll gap at the time of rework. A rice huller configured to start in the gap.