JPS614542A - Controller for gluten removal of 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 Application Field" The present invention relates to a hulling machine incorporating a pair of hulling rolls, and a hulling ratio for detecting the hulling ratio of mixed rice that has been hulled by the hulling rolls. The present invention relates to a wall removal control device that is equipped with a sensor and that adjusts the gap between the wall removal rolls based on the detected value of the sensor to control the wall removal rate at a constant level.

"Prior Art" Conventionally, in such a structure, an operation switch for starting automatic control and a demolition rate setting device for setting a standard demolition rate are provided for separate operations.

``Problems to be solved by the invention'' Therefore, whenever the quality or maturation conditions of paddy differ, it is necessary to stop the work and set the standard dehulling rate again.
This made handling operations very inconvenient.

"Means for Solving the Problem" Therefore, the present invention provides a control operation switch for starting or interrupting the automatic control of the gap between the demolition rolls, and when the switch is turned on, the demolition rate sensor value in this state is is taken as a standard removal rate, and the gap between the removal rolls is subsequently controlled based on this removal rate sensor.

According to the present invention, the automatic control is temporarily interrupted at any time during automatic control to detect the demolition rate, and the gap between the demolition rolls is adjusted to a desired standard demolition rate. After adjusting, the control switch can be used to immediately return to automatic control, and from then on, the demolition work can be carried out while accurately maintaining a constant demolition rate without any loss of time.

``Example'' An example of the present invention will be described in detail below based on the drawings. 1st
1; 1 is an overall cross-sectional view of the rice huller showing the main parts, and FIG. 2 is an overall external view of the same. In the figure, (1) is the rice huller, and (2)
(3) (4) is a pair of dehulling rolls installed opposite to each other at the bottom of the hopper (2); (5) is a shank that opens and closes the bottom of the hopper (2); (θ) is a deployment lever that manually opens each of the rolls (3) and (4) in an emergency manner; and (7) is a step-driven demolition motor that is a demolition rate adjustment motor that adjusts the gap between the rolls (304).

In the figure, (8) is a wind sorting section on which the hulling section (1) is placed, and includes a brown rice take-out gutter (9) and a brown rice conveyor (10).
Karawine (1) removes small rice from the brown rice that falls into the gutter (9).
1) and a rice removal gutter (12) that carries the rice out of the machine.
) and the rice conveyor (13), the grain scattering plate (14) and the grain flow plate (15), and the de-mulling roll (3) (4
) A surioshi rice take-out gutter (1B) facing downward and receiving surioshi rice (brown rice and paddy) and a surioshi rice conveyor (17);
A rice pick-up gutter (18
), a rice husk conveyor (19), and a dust suction/exhaust fan (20) for discharging the rice husks separated from the rice to the outside of the machine.

In the figure (2I), the rice graining section (1) is placed on top of the wind sorting section (8).
), and as shown in Fig. 3, there are upper and lower sorting tubes (22) (23) that rotate continuously in one direction to separate brown rice and paddy, and the container tube (22). (23
) supporting rolls (24)...(
25).

..., a mixed rice supply tank (26) provided outside one end of the upper sorting tube (22), a supply conveyor (27) and a re-sorting grain conveyor (28) inserted into the upper sorting tube (22), and a brown rice receiver. A conveyor (29), a brown rice receiving conveyor (30) inserted into the lower sorting cylinder (23), and a rice sorting machine (31) installed between the upper and lower brown rice receiving conveyors (28) and (30) and connecting these in series. , a chute (32) that communicates the paddy discharge end of the upper sorting tube (22) with the hopper (2), a chute (33) that communicates the re-sorting grain conveyor (28) with the lower sorting tube (23), and a lower sorting tube (32) that communicates the paddy discharge end of the upper sorting tube (22) with the hopper (2). A shoe that connects the mixed rice discharge end of the cylinder (23) to the rice removal gutter (16)) (
34) and the brown rice receiving conveyor (30) to the brown rice take-out gutter (9).
) (35).

Then, a brown rice lifting conveyor (36) whose lower end is connected to the ifi brown rice conveyor (10) and a sorting rice lifting conveyor (37) whose lower end is connected to the scraped rice conveyor (17) are installed. In addition to standing up along the outside of the machine,
The sorted rice lifting conveyor (
37) The upper end is communicated through a connecting pipe (38) to separate the rice scraped from the hulling section (1) and the returned mixed rice from the sorting section (21) that flow together to reach the sorting section (21). The upper end of the bypass pipe (39), which is a bypass path, is connected to the connection pipe (38), and the lower end of the bypass pipe (39) is connected to the joint (40) between the brown rice conveyor (17) and the lifting conveyor (37). Connect each conveyor (3B)
As in (37), install the bypass pipe (39) along the outside of the machine.

Figures 4 and 5 are enlarged sectional views of the bypass pipe (39), and the container (41) which is a hopper for measuring the weight of the flow.
is installed inside the bypass pipe (39), and overflow gutter (42) (42) is integrally configured on both sides of the container (41),
The container (41) is always kept filled with mixed rice, and excess mixed rice is drained into the overflow gutter (42).
41) While leaking from the upper edge, the container (41)
A grain outlet (43) is provided at the center of the lower part of the container, and the grain outlet port (43) is formed so that a certain amount of mixed rice is continuously dropped.

In addition, a sensing shaft (45) is connected to the bypass pipe (38) below the container (41) via a sensing shaft (44).
(45) A sensor arm (46) with one end fixed in the middle, and a receiving plate (4) on the other end.
7) is fixed, and the receiving plate (
47) is supported so as to be able to rise and fall freely, and the receiving plate (47)
) is tilted in a left-right direction substantially perpendicular to the direction of the vertical swinging force, and a receiving plate (47) is positioned substantially directly below the outlet (43).

The sensing shaft (45) is connected to the potentiometer (49) fixedly supported by the plug (48).
) are interlocked and connected, and the sensor arm (
Weight arm (50) installed horizontally in the opposite direction to
), as well as a weight arm (51) that hangs vertically downward.
) to the sensing shirt) (45) The ends i are respectively identified. Further, a weight (52), which is a balance member that provides a counterbalancing force in the opposite direction to the force acting on the receiving plate (47), is attached to at least one of each weight arm (50) and (51), and a weight (52) is attached to at least one of the weight arms (50) and (51), and Catching plate for the falling mixed rice (47
), a dehulling rate sensor (53) is formed by each member including the receiving plate (47) and the potentiometer (49), and the relative weight change between the falling weight of the mixed rice and the weight (52) is measured. The sensor arm (46) and sensing shaft (45) are rotated by
The falling weight of the mixed rice falling from the outlet (43) is
It is configured to be detected via a shomeometer (48). Furthermore, an overflow sensor (54) is installed outside the container (41), and when the container (41) is filled with a certain amount of mixed rice and is in an overflow state, this is detected by turning on the switch (55). It is configured to do so.

As shown in FIG. 6, the demolition rolls (3) and (4) are interlocked and connected via transmission gears (5ft) (57), (58), and (59), and the sub-demolition roll (4) is connected to a gap adjustment link. (SO).

A slider (81), a gap adjustment shirt (82), and gears (83) and (84) are connected to the demolition motor (7), and the demolition roll is driven by the forward and reverse rotation of the motor (7). (3) The hulling gap (C) in (4) is provided so as to be controlled to open and close as appropriate. (62) A slider (65) is screwed onto the screw portion (e2a) at the other end, and a roll maximum opening limit switch (66) is a roll position switch operated by the slider (65).
(4) is added to the machine frame (67), and when the rolls (3) and (4) are opened to the maximum by the drive of the motor (7), this is detected by the one inch switch (66). It is set up in difference
In addition, the removal rolls (3) (4) and the removal case (67) containing the rolls (3) (4) and roll transmission gears (56), (57), (58), and (59) are equipped with the removal rolls (3) (4).
) is equipped with a microphone (68) that is a microphone sensor that detects changes in the driving sound when the de-wall rolls (3) and (4) rotate, and the transmission gear (5B) (57) changes due to contact when the de-wall rolls (3) and (4) rotate. (58) The meshing sound of (59) is detected by a microphone (68), and the zero state of this hulling gap (C) is detected via the microphone (68).

As shown in FIG. 3, there is a sorting amount sensor (68) in the upper sorting tube (22) that detects changes in the sorting amount, which is the amount of mixed rice supplied to this tube (22), using a potentiometer (68). 70).

FIG. 7 is a control circuit diagram of the demolition motor (7), in which a power supply (
73) and connects the changeover switch (74) for switching between automatic and manual adjustment to the control circuit (71a), and connects the potentiometer (49) of the demolition rate sensor (53) to the detection value adjustment circuit (75). is connected to the control circuit (71a) via the potentiometer (49).
The adjustment circuit (75) adjusts the detected value on the production line.
).

Also, the gear (5G) (
57) The microphone (68) for detecting the drive sound of (58) and (59) is connected to the control circuit (71a) via a bandpass filter (76), and the shafter (5) at the bottom of the omputer (2) a shutter switch (77) that detects when the roll is opened;
3) The roll position switch (66) that detects the maximum opening operation of (4), and the deployment lever operation detection switch that detects the emergency opening of the de-wall rolls (3) and (4) due to the operation of the deployment lever (6). (78), and the rod removal rate sensor (53).
) and an OK switch (78), which is a control operation switch for controlling the removal and automatic start/cancellation, are connected to the control circuit (71a).

Furthermore, a sorting amount sensor (70) that detects the amount of mixed rice in the sorting cylinder (22), and a de-hull weight setting device () that adjusts the gap (C) between the de-hulling rolls (3) (4) by operating a dial.
80) is connected to the control circuit (71a), the demolition motor (7) is connected to the drive circuit (81), and the demolition rolls (3) and (4) are opened and closed manually. The manual open/close switches (82) are respectively connected to the control circuit (?1a).

Furthermore, the lamps (83), (84), and (85), which are alarms for notifying the appropriateness, high rate, or low rate of the demolition rate detected by the demolition rate sensor (53), are connected to the demolition rate display circuit (86). ) and also through the sorting amount sensor (70
), the sorting amount display (87) is a monitor that displays the sorting amount detected by the control circuit (7
1a), and connect the immature grain indicator (8
8), an automatic display (89), a manual display (90), and a buzzer (91) serving as an alarm are respectively connected to the control circuit (71a).

On the other hand, each of the switches (55) (
74), (77), (78), and (79) are connected to the OK counter switch (92), respectively.

The present embodiment is constructed as described above, and its control operation will be explained below with reference to the flowcharts shown in FIGS. 8 to 19.

l. When opening and closing the roll gap (C) manually (see Figure 8 and Figure 1O) (1) Switch the changeover switch (74) to manual mode.

(2) Close the deployment lever (6) and shutter (5).

(3) Close the manual open/close switch (82).

(4) When the rolls (3) and (4) are in contact and the contact sound is confirmed, turn off the switch (82) and adjust the roll gap adjustment knob (not shown) to zero.

(5) Open the manual opening/closing switch (82) to open the sunken rolls (3) and (4) at predetermined intervals.

All of the above operations are performed at the discretion of the operator.

2. In the case of operating the roll gap (C) by automatic control 2-1 At the start of automatic control (see Figure 8) (1) The initial gap X1 is set by the unloading weight setting device (80).

(2) When the deployment lever (6) is closed and the shutter (5) is closed
10 Set the clearance (C) to the reference value X1 position.

(3) Set the set time T required to start automatic control when the deployment lever (6) is closed and the shutter (5) is open.When the tire operation starts, and when the overflow sensor (54) is on, automatic control becomes possible. 6 (4) Check the demolition status during work, reset the standard for the roll gap (C) to the standard demolition rate, and store the standard value X.

(5) OK sui, turn on chi (79).

(6) After the set time T1 has elapsed, automatic control starts and the automatic display (89) lights up.

Setting to the roll gap reference position (see Figure 11) (1) Rolls (3) and (4) are opened to open the roll gap (C) by X3.

(2) The microphone level L, which is the noise level at this time, is sensed by the microphone (68), and this level L is detected by the microphone (68).
(3) (4) Contact sound level Lo (
Store as L0=LXk).

(3) After the set time T3 has elapsed, rolls (3) and (4) are closed again in steps.

(4) When the rolls (3) and (4) are in contact and the microphone (G8) senses the level Lo, the rolls (3) (
4) The opening movement is equivalent to the set standard value X.

・Resetting the roll gap standard (see Figure 12) After the automatic control possibility is displayed, when the removal rate setting device (80) or manual opening/closing switch (82) is operated, the roll gap (G) is adjusted according to the instruction. After the adjustment, the gap is stored as a reference value X, and when the OK switch (79) is operated, the removal rate sensor corresponding to this reference value X is used as the reference removal rate, and control is thereafter performed. If it is not reset, press X
=X1.

2-2 Automatic opening/closing control of the roll gap (C) (when normal hulling work is being performed) (Fig. 8).

(See Figures 9, 15 to 19) (1) The average dehulling rate a of the sample is greater than the unhulled rice rate a0, and the dehulling rate standard corresponds to the roll gap standard value X during the current operation. When the difference between the value and the average demolition rate a is smaller than the allowable range from the standard demolition rate, that is, the tolerance C (a>ao and 1a-
bl<C) That is, when the amount of immature rice (crude) mixed in is small and the deviation from the standard dehulling rate is below a certain level.

a>b...Rolls (3) (4) are opened with n-stiffness a<t+...Rolls (3) (4) are closed with n-stiffness a=b...Roll (3) Maintaining the opening/closing stop of (4) (2) Measurement of the above-mentioned detachment a after the set time Tl when the roll gap (C) is within a constant adjustment range x4 (within X±x4) with the reference value X as the median value Repeat.

(3) During this period, a constant value Δ with respect to the reference value
A correction of X is made.

(4) When the roll gap (C) exceeds the fixed adjustment range X4 (x + X4 or more (or less)), the automatic control is interrupted and the roll gap alarm I is activated.

(5) Thereafter, turn on the OK switch (79) to stop the operation of alarm I and reset the standard for the roll gap (C).

2-3 Control safety check (see Figure 8) During control 1
For each cycle, (1) check the microphone level, (2) check the roll position switch (66) (roll position alarm), (3) check the overflow sensor (54) on and check the level of the demolition rate sensor (53). (hopper clogging alarm) will be issued.

(1) If the micro level is excessive, increase the roll gap to
Open to Z.

(2) Roll position alarm (see Figure 14) When the roll position switch (6B) is on, the roll position alarm is activated and automatic control is interrupted. In this state, when the shutter (5) is closed and the OK switch (78) is turned on, the alarm operation is stopped. After that, the main switch (72) is turned off once and automatic control is restarted from the preparation stage.

(3) Homper clogging alarm (see Figure 19) When the overflow sensor (54) is off or the level of the evacuation rate sensor (53) is too low, the homper clogging alarm is activated and the automatic control is activated.
Cut off.

In this case, the activation of the alarm is stopped by turning on the OK switch (7i3), and the blockage is removed within time T5 by turning on the switch (79), and both sensors (53) and (54) return to their original states. When this happens, reset the roll gap (C) standard and start over.

2-4 Automatic opening/closing control of roll gap (C) (when the deviation from the reference value is large) (Figures 8 and 9).

, see Figures 15 to 18) (1) If the average dehulling rate a of the sample is greater than the unhulling rate a0, and the dehulling rate sensor corresponding to the roll gap reference value X during the current operation is the average When the difference from the demolition rate a is larger than the allowable deviation C from the standard demolition rate (a > ao and 1a-bl >
c) In other words, although the deviation from the standard shedding rate is large, it
When the contamination of rice (t rice) was small, the number of times a > b was used was the paddy alarm ■o
At the same time as operating the n template roll (3) (4)
Open. At this time, if the gap (C) is within X+X4, the sample removal rate is repeatedly detected after time Tz. Also X +
When it becomes X4 or more, the automatic control is interrupted and the roll gap alarm I is activated. Note that the paddy alarm Io is automatically canceled when the alarm condition is resolved.

A, which was routed when a>b, interrupts the automatic control for the mth time and activates the paddy alarm Im.

At this time, turn on the OK switch (79) to stop the operation of the paddy alarm Im, and start over by resetting the roll gap (C) (7) standard.

(2) Control similar to the above (1) is performed also when a<b.

2-5 Automatic opening/closing control of gap (C) (when a large amount of immature rice is mixed in) (Figures 8, 9, 15 to 18)
(See figure) The average de-hulling rate a of the sample is smaller than the unhulling rate a0+, and the difference between the unhulling rate standard value corresponding to the roll gap standard value X during the current operation is the difference from the standard unhulling rate. When the tolerance deviation is larger than C (a≦ao and 1a-bl>c), that is, when there is a large amount of unripe rice (a<b> in practice, we will only explain this case.) (1 ) The immature rice indicator (88) lights up.

(2) When the number of times the route has been passed in succession is less than U times, activate the paddy alarm ■m and proceed to the next step without closing the rolls (3) and (4).

(3) Activate the paddy alarm un after the uth time, and
Close rolls (3) and (4) in n steps, and gap CG
) is within x-X4, repeat the route after time T2 x
- When it becomes less than x4, the automatic control is interrupted and the roll gap alarm (■) is activated. In other words, if a≦aO, after the Uth consecutive roll, roll (3) until X-X4 is reached.
(4) is closed. In this case as well, the roll gap alarm H
The stop is performed by turning on the OK switch (79), and the reference of the roll gap (C) is re-selected.

2-6 Husking work (Figures 8, 9, and 16).

(Refer to Figure 18) l The unloading load setting device currently in operation (80
) When the gap setting value is smaller than the coarse layer setting value It performs the same control as the work.

In other words, when a>aOjl 1a-bl≦C, the same as in 2-2 above, when ahaOth 1a-block, the same as in 2-4 above, when a≦aO, the same control as in 2-5 above is performed. .

Note that during the hulling operation, the microphone level is not checked every cycle.

3. When operating the roll gap CG by manual interruption (see Figure 9) (1) Before starting automatic control (01 (counter switch (92)
) If off, the OK counter switch (92) starts automatic control.
``This is provided to detect whether or not the OK switch (79) is pressed at the time of i.
Press once to keep the counter switch (92) on, and then turn on the OK switch (78) to OK.
This turns off the counter switch (82). ) Manual opening/closing is performed by manually switching the switching switch (74).

(2) After starting automatic control (OK power output inch (92)
On), expand/go (6) open, open/close (5) close 1 Manual open/close switch (82) operation, OK switch (79) turn on operation to interrupt and restart automatic control. After that, the route starts by resetting the call gap standard. The manual opening/closing switch (82) can be operated freely in either case of automatic control or later (manual priority).

In addition, in the flowchart, Fl (automatic start flag)
is to determine whether or not the set time TI has elapsed since the start (l after O1 elapses until it elapses), and Fz (husking refrag) is to check whether the set gap by the dehulling weight setting device is currently the setting value of the scraping gap x0
Determine whether or not it is less than or equal to (X(, 1.x when less than or equal to).

O) Used when exceeding .

Additionally, the alarm operates as follows.

(1) Deployment lever (6) open before automatic start, shutter (5)
) Continuous operation of the buzzer (81) when opened (2) Paddy alarm. ... High rate lamp (84) lighting (3) Paddy alarm Im
...High rate lamp (84) flashing, buzzer (91)
Intermittent (4) Paddy alarm II. ... Low rate senpu (85) lights up (
5) Paddy alarm II m... low rate lamp (85) flashing,
Buzzer (91) Intermittent (6) Roll gap alarm 1. II... Proper lamp (83) flashing, buzzer (91) intermittent (7) Homper 9^ alarm...Each lamp (83) (
84) (85) Blinking and buzzer (91) Intermittent (8) Roll position alarm... Buzzer (91) Continuous Furthermore, the average demolition rate a is determined by the demolition rate sensor (53) at a predetermined time interval of 7. The average value (a=Z/Y) of the total sum Z of detection values detected in pulses is used, and manual interruption is also possible between pulses within this predetermined time.

By the way, as shown in FIG.
0) has a dust-proof and splash-proof structure, and is equipped with a variable resistor (
93), the knob (84) for opening and opening operation, the operating spring, and the lever (84).
A dustproof member (96) is interposed between the dustproof member (95) and the
``Effects of the Invention'' As is clear from the above embodiments, the 0-ring (88) is interposed between the variable resistor (93) and the operating shaft (97) via the 0-ring retainer (98). The present invention is equipped with a dehulling rate sensor (53) that detects the dehulling rate of the mixed rice dehulled by the dehulling rolls (3) and (4), and the dehulling rate sensor (53) detects the dehulling rate of the mixed rice dehulled by the dehulling rolls (3) and (4). In a structure in which the gap (C) between the wall rolls (3) and (4) is adjusted to control the wall removal rate at a constant level,
Automatic NJ of the gap (G) of the scale rolls (3) and (4)
Control operation switch (79) for starting or interrupting
), and when the switch (78) is turned on, the value of the demolition rate sensor (53) in this state is set as the reference demolition rate, and from now on, the value of the demolition rate sensor (53) (i.e. (3) Since it performs gap (C) control in (a), it is possible to temporarily suspend automatic control at any time during automatic control and detect the demolition rate, and also to set the desired standard. After adjusting the gap (C) between the demolition rolls (3) and (4) to the demolition rate, use the operation switch (79) to determine the correct demolition at the adjusted standard demolition rate. It has remarkable effects such as being able to perform work immediately and being extremely efficient.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the entire main part showing one embodiment of this A9Q,
FIG. 2 is an external view of the same, FIG. 3 is an enlarged sectional view of the main part, and FIGS. 4 and 5 are explanations of the removal rate sensor section. FIG. 20 is an explanatory view of the removal rate setting device. (3) (4)... Get rid of ff! Roll (53)... Demolition rate sensor 1 (78)... Operation switch (OK switch) <
C> ... Gap (of the demolition roll) Figure 3? ? Figure 6 Figure 4 Figure 5 λ) Helmet 9 Prisoner 10th Prisoner-2q4
- Part I+ Prisoner $12: Prisoner! ! ! , t5 Kuchibi 14 Gou 15 Waki Hayabusa 16 Prisoner
Present 17 Tomoe I8 Kyo
Hata 19 Amended Procedures (Spontaneous) July 6, 1980 2, Name of the invention: De-# control device for rice huller 6, Relationship with the person making the amendment Case Filed Address: Chaya, Kita-ku, Osaka City Town 1-32 name
(685) Yanmar Agricultural Machinery Co., Ltd. Representative Atsuo Yamaoka 4, Agent 5, Subject of amendment ・In the specification,
Column for detailed description of the invention. 7. Contents of the amendment In the specification, the statement "Next is the OK switch" on page 21, line 2 to line 4 of the same page is corrected as follows.

Claims (2)

[Claims] (1) Equipped with a removal rate sensor that detects the removal rate of the mixed rice removed by the removal roll, and controls the removal rate at a constant level by adjusting the gap between the removal rolls based on the detected value of the sensor. In the structure, a control operation switch is provided for starting or interrupting the automatic control of the gap between the stripping rolls, and when the switch is turned on, the stripping rate sensor value in this state is set as the standard stripping rate, From then on, the removal will be done based on this removal rate sensor value.
1. A removal control device for a huller, characterized in that it is configured to control the gap between the ratio rolls. (2) The control device according to claim 1, which also cancels the operation of various abnormality alarm devices when the control operation switch is turned off.