JPS6342744A - Unhulled rice feeder of huller - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paddy supply device for a huller that separates paddy into brown rice and rice husks and takes them out using a pair of de-frame rolls.

``Prior art'' Manual and automatic frame-removal rate controls are known that adjust the roll gap and maintain the frame-removal rate at a constant level by detecting changes in the drive load of the frame-removal rolls from current values, etc. There is.

``Problems to be solved by the invention'' However, there is a structure in which the un-de-scaled paddy supplied from the supply hopper and the de-framed reduced paddy from the sorting section are combined for de-hulling. However, as the amount of ζ-prime rice returned increases, even if the driving load of the dehulling rolls remains the same, the dehulling rate becomes higher, resulting in grained rice and broken rice. Ta.

"Means for Solving the Problem" Therefore, the present invention provides a structure in which paddy supplied from a supply hopper and reduced paddy from a sorting section are deweighed by a deframing roll. A mixing ratio sensor for detecting the mixing flow rate of the supplied paddy and the reduced paddy is provided at the junction with the supplied paddy and the reduced paddy.

"Function" According to the present invention, by maintaining a constant mixing flow rate of the supplied paddy and the reduced paddy, the deframing rate control that keeps the driving load of the deframing roll constant can be performed with high precision. In addition, even if there is a change in the mixing flow rate of supplied paddy and reduced paddy, highly accurate dehulling rate control can be performed without any problems by correcting the control drive load value of the deweighing hole by the change. It is something.

"Example" Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a partial view of the huller, FIG. 2 is an overall view of the huller, and FIG. 3 is a sectional view thereof. In the figure, (1) is the hulling part, (
2) is a supply hopper into which paddy is input, (3) and (4) are a pair of de-frame rolls installed opposite to each other at the bottom of the hopper (2), and (5)
(6) is a shutter that opens and closes the lower part of the hopper (2);
(7) is a deployment lever for manually opening each roll (3) (4) in an emergency manner; (7) is a deployment lever for manually opening each roll (3) (4);
This is a frame removal rate motor that adjusts the approach and separation.

In the figure, (8) is a wind sorting unit that places the hulling unit (1) on top, and removes small rice from the brown rice that falls into the brown rice take-out gutter (9) and the brown rice conveyor (10), and the gutter (9). Karakin (11)
) and the rice removal gutter (12) that carries the rice out of the machine.
And the rice (brown rice and paddy) that has been scraped off is passed through the rice conveyor (13), the grain scattering plate (14) and the grain flow plate (15) to the side of the unframed rolls (3) and (4). A slug rice removal gutter (16) and a sludge rice conveyor (17) that receive the sludge rice, a slug removal sluice (18) and a rough conveyor (18) that receive the slugs separated from the sludge rice, and a sludge rice conveyor (18) that receives the sludge separated from the sludge rice. It is equipped with a dust suction fan (20) for discharging rice husks to the outside of the machine.

In addition, (21) in the figure is a sorting part placed on top of the wind sorting part (8) and installed in parallel with the hulling part (1), and as shown in Fig. 4, it continuously rotates in one direction to remove brown rice. Upper and lower sorting cylinders (22) (23) for separating rice from rice and the above-mentioned parts (22023
) supporting rolls (24) that rotatably support each...
・(25)..., a mixed rice supply tank (26) provided outside one end of the upper sorting tube (22), and an upper sorting tube (22).
), a supply conveyor (27), a re-sorting grain conveyor (28), a brown rice receiving conveyor (29), and a lower sorting cylinder (
A brown rice receiving conveyor (30) inserted in 23), a rice sorting machine (31) installed between the brown rice receiving conveyors (2s) (30) under -L and connected in series, and a -■ partial sorting tube. (22)
A chute (3) connects the paddy discharge end of the chute (3) to the hopper (2).
2), and the re-sorting grain conveyor (28) is connected to the lower sorting cylinder (23).
(33) and the lower sorting tube (2).
3) a shoe that connects the mixed rice discharge end to the rice take-out gutter (1B) (34), and 6, wooden tray conveyor (30).
) is connected to the brown rice removal gutter (9) through the chute (35).
).

A brown rice yang 1. whose lower end side communicates with the brown rice conveyor (lO). The conveyor (36) and the sorted rice lifting conveyor (
37) are set up along the outside of the machine, and the sorting bar (37) is installed in the supply tank (26).
7) t: The ends are connected through a connecting pipe (38), and the scraped rice from the hulling section (1) and the returned mixed rice from the sorting tube (23) are combined and fed into the supply tank (26). It is configured to do so.

Furthermore, the hulling section (1), wind sorting section (8) and sorting section (2)
1), and the dehulling rolls (3) and (4) are driven by the hulling motor (39).

As shown in FIG. 1, the de-frame rolls (3) and (4) are disposed within a hulling case (41) that communicates with the lower part of the paddy discharge port (40) of the supply hopper (2). Axis (4
2) Each deweighing roll (3) (43) is pivotally supported.
4) facing each other, and a transmission gear (
44) (45) is pivotally supported, and the rice hulling case (
41) is provided with a gear case (46), and the gear (44)
(45) is installed inside the case (46). Further, drive gears (49) (50) are pivotally supported in the case (46) via power shafts (47) (4B), and each gear (44) (4B) is supported within the case (46).
5), (49) and (50) are always meshed, and the support shaft (43) of one of the frame removing rolls (4) is pivotally supported in the middle of the gap adjustment link (51), and one end of the link (51) is It is supported coaxially with one of the power shafts (48).

Gears (52) (53) are connected to the frame removal rate motor (7).
A threaded portion (54a) at one end of the shaft (54) is screwed to the other end of the link (51) via a bearing member (55). The roll gap (56) between the rolls (3) and (4) into which paddy is introduced is automatically adjusted by the forward/reverse control of the motor (7), and a dehulling rate adjustment handle ( 57) is attached, and the O-IL gap (5B) can be manually enlarged or reduced by rotating the handle (57).

In addition, a paddy flow rate regulating valve (58) for adjusting the paddy flow rate is provided below the paddy discharge 11 (40), and the paddy grinding case (41
) to swingably support the base end of the control valve (58) via the shaft (59), and a control pole (80) attached to the hulling case (41) with its tip in contact with the bottom surface of the control valve (58). (80) to open the control valve (58).
) is configured to adjust the opening.

Furthermore, as shown in FIG. 5, a mixture of supplied paddy and reduced paddy is placed at the junction of the supplied paddy and reduced paddy, which faces the reduced paddy discharge port (32a) of the shoe (32) at the paddy discharge port (40). A mixture ratio sensor (61) is provided to detect the flow rate ratio.

The sensor (81) has its base end integrally supported by a sensor shaft (62) attached to the rice hulling case (41).
2) Potentiometer (63) at the outer end of the case (41)
is fixedly installed, and when a balance difference occurs in the mixing ratio of supplied paddy and reduced paddy and the sensor (61) swings left and right about the sensor shaft (62), the potentiometer (63)
The system is configured to detect this rate of change.

As shown in FIG. 6, a current value sensor (64) which is a load sensor that detects the driving load of the hulling motor (38);
The reference value of this sensor (64) is the frame removing roll (3).
) (4) Frame removal rate setting device (65) for setting the frame removal rate reference value
), a sensor (64) detects a change in the current of the power source of the motor (41) which is proportional to a change in the driving load of the de-frame rolls (3) and (4), and detects a change in the de-frame rate (83). )
and a standard deframing rate setting device (65), which corrects the output of the setting device (65) based on the output of the meter (63); A frame removal rate adjustment comparator (87) is provided which inputs and connects the sensor (84) and the correction circuit (86), and compares the output of the sensor (64) and the output of the setting device (85) to adjust the output of the motor (38). It is configured to detect a change in frame removal rate based on a change in load current. and said comparator (
67) through a drive circuit (68) to drive and control the motor (7) when the comparator (87) outputs a frame removal rate change signal. , the sensor (64) output and the correction circuit (68
) The roll gap (56) is adjusted to match the output, and the frame removal rate is maintained constant.

This embodiment is configured as described above, and the mixed flow rate of the supplied paddy and the reduced paddy supplied to the de-frame rolls (3) and (4) during the hulling operation is balanced at a predetermined ratio. At this time, the sensor (61) also maintains a constant state and does not change. At this time, the roll gap (56) is based on the reference current value of the setting device (65) and the detected current value of the sensor (θ4).
) is controlled by the sensor (8) based on the reference current value.
4) When the detected current value is small or large, the roll gap (56
), the reduction and formation are controlled by expansion and are always maintained at a constant gap.

On the other hand, the balance between the supplied paddy and the reduced paddy collapses, and the reduced paddy changes to either smaller or larger than the predetermined mixing flow rate, and the sensor (6)
1) is oscillated from the normal state to the left or right, the potentiometer (63) outputs an output value corresponding to this change to correct the reference current value of the setting device (85). In other words, in the output diagram of Figure 7, when the flow rate mixing ratio of reduced paddy changes from small to large as shown in (a) and (b) of the same figure, when maintaining the predetermined unhulling rate (x) The reference current value from the setting device (65) is corrected by +ΔA or -ΔA. In case (a) where the mixed ratio of reduced paddy is small, the roll gap (5
8) is in the closing direction, and the mixed ratio of reduced paddy is large (b
), the roll gap (56) is adjusted in the direction of opening by correcting the reference current value by -ΔA, and a predetermined unframed rate (
X) is maintained constant.

FIG. 8 shows another example of a modified structure, in which the frame removal control switch (7
The sensor (θ1) is turned on and off when neither the supplied paddy from the hopper (2) nor the reduced paddy from the hopper (32) flows down, or even if only a small amount flows down. Free hanging state $ back switch (
70) is turned off, and if the flow rate of reduced paddy becomes higher than the specified value even if supplied paddy and reduced paddy are flowing down, the sensor (8) is turned off.
1) in a counterclockwise direction to turn off the switch (70) and interrupt the automatic control of the dehulling rate, while rotating the sensor (61) in a clockwise direction when the supplied paddy flows below a predetermined flow rate. This system is configured so that automatic control of the deframing rate is started by setting the above-mentioned switch to a switch (70 mm), which prevents the rolls (3) and (4) from being tightened when there is a small amount of supplied rice or when there is a large amount of reduced paddy. Ru.

"Effects of the Invention" As is clear from the above embodiments, the present invention allows the supply of paddy from the supply hopper (2) and the reduced paddy from the sorting section (21) to be deframed by the deframing rolls (3) and (4). In the structure for frame processing, a mixing amount ratio sensor (
61), by keeping the mixed flow rate of the supplied paddy and reduced paddy constant, the deframing rate can be controlled to keep the drive load of the deframing rolls (3) and (4) constant. It can be made with high precision, and even if there is a change in the mixing flow rate of supplied paddy and reduced paddy, the deframing roll (3)
By correcting the control drive load value in (4), remarkable effects such as highly accurate frame removal rate control can be achieved without any trouble.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional explanatory diagram of the huller, Figure 2 is an overall view of the huller, Figure 3 is a front sectional view, Figure 4 is a side sectional view, and Figure 5 is a cross-sectional view of the huller.
6 is a control circuit diagram, FIG. 7 is a line diagram showing the relationship between current value and frame release rate, and FIG. 8 is an explanatory diagram showing another example of a modified structure. (2)... Supply hopper (3) (4)... Framing roll (21)... Sorting section (61
)... Mixing ratio Yansa Applicant Seirei Kogyo Co., Ltd. Mu Nishikidaho

Claims (1)

[Claims] In a structure in which the supplied paddy from the supply hopper and the reduced paddy from the sorting section are de-rolled, a mixing flow rate of the supplied paddy and the reduced paddy is provided at the confluence section of the supplied paddy and the reduced paddy. A paddy supply device for a huller, characterized by being provided with a mixing ratio sensor for detecting the ratio.