JPS6012137A - Dehulling controller of hulling machine - 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 Zero starter #3A has a hulling section having a pair of dehulling rolls, a hulling wind sorting section that separates rice scraped from the hulling section from rice husks, etc., and the rice scraped from the hulling section. The present invention relates to a device that includes a sorting section that separates rice into brown rice and paddy, and also houses a deweighing rate sensor and a gap adjustment member for the rolls, detects the entire deweighing rate of the rolls, and corrects it to a set value.

Conventionally, there has been a technique (for example, Japanese Unexamined Patent Publication No. 57-209645) in which a grain scattering plate is rotatably disposed below between the scale removal rolls and changes in the angle of the scattering plate are detected. However, since the technique described above maintains the deweighing load of the motor that drives the deweighing roll U1 within a set range, the relative change in the deweighing load of the motor and the deweighing rate of the front eight rolls is Although control is required to keep it approximately constant, the deweighing load of the motor and the deweighing rate of the roll change relatively unstablely, making it difficult to set a standard value for the correlation between them, and it is difficult to set a standard value for the correlation between them, so it is difficult to set a standard value for the correlation between them, and it is difficult to set a standard value for the correlation between them. Therefore, precise and accurate control of the unweighing rate was desired.

The present invention addresses the above-mentioned problems, and examines the correlation between the gap between the deweighing rolls and the deweighing rate, and the relationship between the weight of mixed rice (brown rice and υ1) with a constant flow rate and the deweighing rate, respectively. By stably obtaining the values, it is possible to set the reference value unchangeably based on the above relationships, and also to detect the true unweighing rate required in actual work, making it possible to automatically control the unweighing rate. It is an object of the present invention to provide a deweighing adjustment device for a rice huller that improves the deweighing precision and maintains a constant deweighing rate.

Embodiments of the present invention will be described in detail below based on the drawings.

Fig. 1 is an overall view of the rice huller, and Fig. 'fJ2 is a sectional view of the same. In the figure, f+) is a hulling section, (2) is a hopper into which f12 is fed, +31t41 is a pair of unweighing rolls installed opposite to each other at the bottom of the hopper (2), and (5) is the hopper (2).
A shutter that opens and closes the lower part, (6) is for each roll +3+
Deployment lever that opens +4+ in an emergency by manual operation,
(7) is a culling motor which is a gap adjusting member for adjusting the gap between the rolls +31 and +41.

In the figure, (8) is the wind sorting section placed above the hulling section + Ilk, which includes a brown rice take-out gutter (9) and a brown rice conveyor (101).
% (n
) and the rice removal gutter (12) that carries the rice out of the machine.
and a scraped rice collection gutter (16) which receives the scraped rice (brown rice and paddy) by facing below the scale removal rolls +31+41 via the rice conveyor (131, general grain flying plate θ4) and grain drifting plate Ql. ), a scraped rice conveyor (1η, a slag take-out gutter (18) for receiving the slags separated from the sloughed rice, and a slag conveyor 119), and a dust suction/exhaust fan for discharging the chaff separated from the sloughed rice to the outside of the machine. (to).

In the figure, sil) is placed on the wind sorting part (8) and the hulling part tl)
As shown in Fig. 3, the upper and lower sorting cylinders (2fi loi), which rotate continuously in one direction to separate brown rice and paddy, and the fore-fertilizer cylinders (221 (23+) Support rolls (goods) that can be supported freely...
and the upper sorting tube (a rice sorting machine installed between the mixed rice supply tank installed outside one end of the four and the upper receiving conveyor (29) t30) and connected in series), and the paddy discharge from the upper sorting tube r12. a chute whose end communicates with the hopper (2);
A chute (33) that connects the reselected grain conveyor to the lower sorting cylinder 1231, a chute that slides off the mixed rice discharge end of the lower sorting cylinder (23) and connects it to the rice collection gutter (16), It is equipped with a chute (3 yen) that connects the brown rice receiving conveyor (toward) to the brown rice receiving gutter (9).

A brown rice lifting conveyor (36) whose lower end side communicates with the brown rice conveyor (lO),
17) Sorting rice conveyor I3η whose lower end side communicates with
and the upper end of the sorted rice conveyor bell η is communicated with the supply tank □□□ through a connecting pipe link, and the scraped rice of the hulling section fil and the above-mentioned The returned mixed rice from the sorting section 1) joins and goes to the sorting section.
), a bypass pipe 69 is a bypass path that separates the flow from the
) The upper end is connected to the connecting pipe (381), and the lower end of the bypass pipe 139 is connected to the junction (40) between the brown rice conveyor (lη and the lifting conveyor a'71), and the same as for each conveyor t36113'il. to the bypass pipe 0
9) along the outside of the machine.

4 to 6 are enlarged sectional views of the bypass pipe (39), and the container circle for the downstream weight meter side is connected to the bypass pipe 139.
), and an overflow gutter (44) is integrally formed on both sides of the container (41), and the container (41) is always kept filled with mixed rice, and excess mixed rice is drained from the overflow gutter (44). 4. The grains are allowed to leak from the upper edge of the container (41), and a grain outlet 143 is provided at the center of the lower part of the container (41).
)' is opened and formed in such a way that a certain amount of mixed rice is continuously dropped.

In addition, a sensing shaft (4 uniformly rotatable shafts) is supported on the bypass pipe β9 below the container (41) via a bracket 1-141, and a sensor arm 14G fixed at one end in the middle of the shaft (40) is received at the other end. plate (4η is fixed,
Front 8 - Support the receiving plate 14η with the shaft decoy as a fulcrum so that it can rise and fall freely, and the receiving plate 111 (471 is tilted in the left and right direction substantially perpendicular to this vertical swing direction, Ifj the abbreviation of Nagarekawa Outlet 3). Place the receiving plate η directly below. A weight arm (50) is provided horizontally in the opposite direction to the sensing shaft (one end of which is interlocked with the potentiometer (49) fixedly supported by the bracket (481), and the sensor arm 14G), and a weight arm (50) is provided vertically downward. All of the weight arms (5t) are fixed to the ends of the sensing shaft (41).Also, a weight arm (β0), which is a balance member that provides a balance force in the opposite direction to the force acting on the receiving plate (4η), is attached to each weight arm β0. (5D, the mixed rice falling from the outlet (43) is brought into contact with the receiving plate: 47), and the weighing plate is removed by each member including the receiving plate property η and the potentiometer 1119). (A), and the sensor arm ←6) according to the relative weight change between the falling weight of the mixed rice and the weight (52).
and a sensing shaft (4 rotations) to detect the falling weight of the mixed rice falling from the outlet (43) via a potentiometer (49).

As shown in FIG.
A transmission gear 156) (571 is pivotally supported on each support shaft i310541, and a gear case state is provided in the rice hulling case (55), and the gear t5t is
i Incorporate the matter into the case state. Also, power shaft φ9)
Drive gear f6+1 in (said case through shout!58)
+62), and each gear j561 +611 and 1
5η (621 are always engaged, and the spindle β4 of one of the culling rolls (4) is supported between the gap adjustment links (63), and one end of the link (63) is connected to one of the power shafts i1J. Support on the same axis.

And gear +64) +e+ to the said scale removal motor (7)
51 Gap adjustment shaft that connects and connects ((to)
A threaded portion (66a) at one end of the shaft group is screwed to the other end of the link (63) via a bearing member (6η), and a threaded portion (66b) at the other end of the shaft group.
Screw on the SfJ slider (681) and engage the anti-rotation shirt (70) fixed to the machine frame (69) with the slider (6). Fix it to the opening limit switch 1lt-machine frame 169),
The switch (711) is configured to detect the maximum opening direction movement of the gap adjustment link (63) by the motor (7).

Furthermore, a pointer (73) and a display plate υ station are provided to display the amount of gap for hulling of the deweighing roll t3) σ3) t-1t machine frame (69) display board on the outside surface -)
At the same time, a contact sensor (
76), and the sensor (Fuchi is equipped with a microphone (771)
Attach a mesh sheet (7) to the sound sensing part of the microphone Qη, which prevents the passage of oil, etc. and allows only air to pass through. A microphone (771 detects the meshing sound of the drive gear (611 (621) that changes due to the contact of the scale rolls +31 to +41, and a minimum closing direction movement of the gap adjustment link by the motor (7) is detected by the microphone (771). It is configured as follows.

As shown in Fig. 8, a gap adjustment operation panel (hook and rubber cushion on the back side of 791) is provided, and various switches and indicators for gap adjustment operation are installed in the above-mentioned Banerve 9).
In addition to the rice hulling section (1) or li1 selection section (8)
Or, in the sorting section (1), the hook is fixed to the outside surface of the IIX machine handled by the worker, and the panel 4 is installed so that it can be moved to any desired location.

FIG. 9 is a control circuit diagram of the scale removal motor (7), which includes a shutter switch @匈 which detects when the shutter (!) at the bottom of the hopper (2) is opened, and the barrier roll f31. When opening the ti+ in an emergency, this deployment lever (
6) A rice hulling interruption switch that detects the operation and the above-mentioned
Roll +31 +41 replacement manual switch example, driving of the microphone ση, band pass filter (2) for determining gear sound input and detecting gear sound when the deweighing roll +31 F41 comes into contact, and the sorting unit @1 ) is provided with a deweighing rate setting device for manually setting the deweighing rate most suitable for sorting (88-90% brown rice) as a reference value for gap adjustment. It is equipped with a deweighing control circuit (87) constituted by a microcomputer, and connects the potentiometer 19) and bandpass filter (the deweighing rate setting device Q1161 and each switch (711 183) +841 to the control circuit IA). It is equipped with a main switch for connecting input and applying power, and an automatic/manual changeover switch.

In addition, the scale removal motor (7) is connected to the control circuit η via a forward/reverse drive circuit iψυ, and a gap adjustment manual switch [is connected to the changeover switch 9 (to) and the drive circuit 1911. , for the front male drive circuit) to detect the overload of the motor (7) and control the first time! A current detector (93) is provided to interrupt the +871 output.

Furthermore, a display meter with # number of light emitting diodes (goods)... is connected to the control circuit η via a deweighing rate indicator @61, and the detected value of the front P potentiometer (49) is read as the deculmination rate. It is configured to be converted and displayed.

In addition, the correlation between the gap amount of the scale removal roll 1B) (41 and the detection value of the weight removal rate and potentiometer 149) is shown in Table 1VC below.

Table 1 There are almost no differences depending on the rice variety.

Figure 1θ is an explanatory diagram of the operation of the above-mentioned weighing control circuit (87), in which the main switch (89) is on, the automatic manual changeover switch 191 is switched to the fully automatic side, and the Group 1 noro lever 16)
The OFF operation of the shutter (5) is detected by the roll development circuit (981) via the hulling interruption switch @3), and the l#l operation of the shutter (5) is detected by the hulling supply circuit (981) via the rice hull switch (8). When the automatic control requirements are met, the automatic start circuit 199) detects this, and in this state, the drive circuit 1id (9
The scale removal motor (7) is driven via 11 to move the scale removal lobby t31+41 in the closing direction. Each roll (31t
41 comes into contact and this drive gear 16υkokuin becomes convenient,
This is detected through the microphone αη of the contact sensor (76), and based on Table I, the undressing rate setting device S
A deweighing rate reference value (approximately 89 percent) is set using the culm, and the reference value is stored in the deweighing setting circuit (101), and the roll opening circuit (102) outputs based on the reference value, and the scale drive Circuit tflll? The motor (7) is fully driven in the gap opening direction to open the gap ('72) of the scale removal roll +31+41 to the reference gap (1.01 mm).

When the hulling work is carried out under the above conditions, the scraped rice from the hulling section f11 and wind sorting section (8) and the returned mixed rice from the sorting section (21) reach the supply tank (goods). is diverted to a bypass pipe 69) and flows into a container for measuring the falling weight, and when the mixed rice consisting of the scraped rice and returned mixed rice falls from the outlet of the container (41), its When the mixed rice comes into contact with the receiving plate 4η, the sensor arm f4e+ * is moved downward in proportion to this weight, and the quantity of the mixed rice on the receiving plate (4η) is detected by the potentiometer and meter 4 through the sensing shaft (4 yen).

When the output of the potentiometer (49) is detected by the deweighing circuit (10B), the deweighing comparison circuit (104) compares the reference value of the setting circuit (lOl) with the detected value of the sensor circuit (io:II). When they match, the output stop circuit (105) detects this and outputs the single signal (105).
7) Stop and maintain.

Also, by comparing the comparison time F@(104), the recess value,
(・3.75 volts or more), the increase in the unweighing rate of kernels is detected by the roll opening circuit (106), and the output of the motor forward rotation circuit (107) is used to drive the engine in the direction of gap opening. Drive the motor (7) to open the gap (3)! 1
The deweighing rate is made to match the reference value by ilJ. Then, as the gap V η reaches its maximum open state, the limit switch H is turned on and the output stop circuit (108
), the drive of the motor (7) in the opening direction is stopped and an alarm is issued.

Further, the comparison circuit (104) compares the detected value (
8.25 volts or less), this debonding rate drop is detected by the roll closing circuit (109), and the output of the motor reversing circuit (11O) causes the motor ( 7) to make the deweighing rate match the standard value by the dark gap closing operation.Then, the gap 4 becomes the minimum closed state, and the deweighing roll +31141 comes into contact with the contact senna (7). The sound of the drive gear +611 !621 is detected by the microphone η, and the motor (71 is driven to open the gap field so that it matches the preset reference value -) via the roll opening circuit (102,). The alarm circuit (I'l
This abnormal situation is notified and outputted by l>.

Further, based on the detected value output of the de-weighing rate sensor circuit (l OR), the de-weighing rate of the fruit is calculated in the weighing rate calculation circuit (112), and the de-weighing rate barley indicating circuit (1'13) is operated. Drive the deweighing rate indicator through the meter and display its actual deweighing rate! On the other hand, by switching the changeover switch (head to the manual side and manually operating the gap adjustment manual switch 19M), the switch l92 is ) detects the gap opening operation, and drives the motor (7) in the opening direction via the drive circuit 1911 to increase the gap (c) of the weighing roll (3++41) and limit switch 1) and output. Stop circuit (
10g), the opening operation of the motor (7) is interrupted and a warning is issued. In addition, the roll closing circuit (
109) and the motor reversing circuit (110)', the gap closing operation of the switch country is detected, and the drive circuit al
11-, the motor (7) is driven in the closing direction to reduce the gap between the weighing rolls +31+41. Also, contact sensor 1
The output stop circuit (114) detects the minimum closed state due to the My 1 Ro 7 ON V η of the 76), and the motor (7
) is kept off and the pointer (73) is set to the zero position by the butterfly nut) ff6) operation to correct the gap error due to wear of the rolls +31 to +41 during manual operation.

Furthermore, when a foreign object is caught between the scale removal rolls +31 +41, the rolls +31 +41 are moved by the deployment lever (6).
The emergency opening operation of the rice huller is detected through the hulling interruption switch (goods) and the roll unfolding circuit t9 force, and the roll opening operation circuit (115)
The motor ( ) is operated to the maximum opening via the limit switch ( ), and the output stop circuit ( 116 ) detects the operation of the limit switch ( ) to keep the roll ( 3++41 open).

Furthermore, when the automatic start circuit 09) output is off, the roll change switch (9) hand stamp operation is activated by the roll change circuit (1).
17), the motor i71 is operated to the maximum opening via the roll opening circuit ('115), and the output stop circuit (116) detects the limit switch vl) #I operation to keep the roll +31itl open. It is something that makes you

Therefore, the weight of the mixed rice falling from the falling weight measurement container (41) to the receiving plate←η per unit time is 100 brown rice.
When the percentage is maximum, the potentiometer 9
) to maximize the resistance value of potentiometer 149), and minimize the resistance value of potentiometer 149), which becomes minimum when the paddy is 100% - Also, increase the proportion of brown rice included in the scraped rice to increase the deweighing rate. In addition, the amount of paddy in the sorting section will increase if the ratio of paddy in the washed rice is increased to reduce the culling rate, and the amount of paddy in the sorting section will increase. At the same time, the sorting accuracy by the sorting tubes (2 barrels) is reduced, and at the same time, the amount of returned rice from the sorting section (1) is increased, and the efficiency of hulling is reduced. Moreover, the mixing ratio of brown rice and paddy in the scraped rice below the deweighing roll +31+41 is the apparent deweighing rate, and is mixed with the returned mixed rice from the sorting section or the scraped rice from the supply tank □□□. The true unweighing rate is the mixing ratio of brown rice and paddy in the mixed rice sent to the sorting section I21).

Further, as is clear from Table 1 above, the phase difference relationship between the deweighing rate of the mixed rice from the supply tank to the sorting section (21) and the gap V2 of the deweighing rolls +31 +41, and the potentiometer (49) The correlation between the falling weight of the mixed rice measured by the method and the deweighing rate can be obtained in a substantially constant proportional relationship without differences depending on the rice variety or the like.

Therefore, at the start of automatic adjustment of the gap between the scale-removal rolls, there is a means to make full use of the de-culm motor t71 in the direction in which the gap closes, and the roll gap (72 is The means for driving the motor (7j) in the opening direction is controlled by the weighing control circuit (8j).
η, the contact between the rolls [31+410 and
), the initial gap (7
21'k Ifl is formed in a similar manner and the hulling operation is started. The maximum opening direction movement of the motor (7) is detected by a limit switch (71), and the minimum closing direction movement of the motor (7) is detected by the microphone σ force, and a gear case (
The micro 1 micro 7 on Qη is installed inside the support) to detect the sound of the front roll (drive gear 1611i62 at 3B++B+), and the motor (
In addition to regulating the malfunction of 7) with the limit switch σl) and the microphone C/71il 1Ill, the gap between the rolls at the start of hulling can be set based on an accurate zero point. Roll +31 The zero point detection of gap +721, which is the contact of F410, can always be accurately performed with My 1 Ro 7 Onve η. Moreover, compared to when roll +31 +41 is brought into contact with a limit switch, there is no need to consider the wear of roll +31 +41. By connecting the bandpass filter (851), only the desired range of drive gear 161+IB2 sound can be obtained from the microphone proboscis.

Furthermore, FIG. 11 shows another embodiment, in which a hulling case (often equipped with a contact sensor (top) and a microphone (76) of the sensor (76)) in which the deweighing rolls +31 and +41 are installed.
771 is inscribed in the case extension 5), and the roll +3
A microphone (7η) detects the change in sound when 1 +41 comes into contact with the microphone.

Furthermore, FIG. 12 also shows another embodiment, in which the above-mentioned hulling case (senna box (1'18)'
The box (11B) is provided with a contact sensor (with a spider inside), the microphone direction is concentrated inside the sensor box (118), and the contact sound of the scale removal rolls 13+141 is sensed by the micro 7 onket η. be.

As is clear from the above embodiments, the zero release 8A includes means for setting the gap V21k between the pair of deweighing rolls [31141] and a gap adjusting member such as a deweighing motor (71) that adjusts the gap σ2 between the deweighing rolls. The rice huller is equipped with a microphone Qη that detects a change in the drive amount when the deweighing roll +31+41 comes into contact with the rice huller, and the maximum opening direction of the gap adjustment member (7) is controlled by a riminoto switch (71). , the minimum closing direction movement of the gap adjustment member (7) is detected by the microphone (771), and the microphone C
By detecting the gap (7 force minimum) by η,
Wear condition of removal roll +31+41! , @ Regardless of K,
The point of the roll gap can be sensed by the microphone (771), and the gap adjustment can be performed accurately by properly setting the gap (3) to zero at the start of work, and the gap adjustment member (7) can be safely controlled. Finished and unscaled roll +31
It has remarkable effects such as preventing damage such as +41 and excessive wear.

[Brief explanation of the drawing]

Fig. 1 is an overall view of a rice huller showing one embodiment of the present invention;
The figure is the same prayer face view, Figure 3 is an enlarged sectional view, and Figures 4 to 6.
Figure 7 is an explanatory diagram of the huller removal section, Figure 8 is a side view of the operation panel, Figure 9 is a control circuit diagram of the de-weighing moke, Figure 10 is 11 is a partial sectional view showing another embodiment, and FIG. 12 is a partial sectional view of the same. +31 +41・Weighing roll +71...Weighing motor ( Gap adjustment member) open...husking case I5 uniform...gear case phase 1f621...drive gear Vi+...limit switch (2)...gap Vη...microphone heron 81m Plan 1? Fig. 5 parable

Claims (1)

[Claims] ■ In a hulling machine equipped with means for setting a gap between a pair of deweighing rolls and a gap adjustment member adjusting the gap between the deweighing rolls, when the dehulling rolls come into contact with each other; The paddy rice cultivation method is characterized in that it is equipped with a microphone for detecting a change in the driving sound of the rice cracker, and the maximum opening direction movement of the gap adjusting member is detected by a limit switch, and the minimum closing direction movement of the gap adjusting member is detected by the microphone. De-weighing adjustment device for a sliding machine - ■ Scope of Claims in which a microphone described in aa is attached to a g-pattern case that houses a de-weighing roll or its driving gear, and the sound of the abutting tuning fork I/'i driving gear of the roll is sensed. 1st
The de-weighing adjustment device for the rice huller described in Section 1.