JPH0622695B2 - Paddy sorting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a grain hull part that removes paddy with a pair of derolling rolls, and slid rice from the grain hull part is turned into brown rice and grain by a rotary sorting tube. And a separation unit for separating.

"Conventional technology" Conventionally, a hulling part having a derolling process, and a sorting part having a rotary sorting tube for separating the slid rice of the hulling part into brown rice and hull, and continuously performing hulling and sorting was there.

"Problem to be solved by the invention" In the conventional technology, when the amount of hulled rice in the hulled portion is detected and the rotation speed of the rotary sorting cylinder is controlled, the amount of hulled rice in the hopper supplied to the derolling is reduced. When, the rotation of the rotary sorting cylinder can be slowed down to perform sorting, but when the amount of hulled rice in the hopper supplied for derolling is maintained at or above a predetermined level, the amount of hulls returned from the sorting unit increases or decreases. Even if the rotary sorting cylinder is kept at a predetermined rotation, the amount of finished brown rice returned to the hull portion increases due to an increase in the amount of returned paddy rice, and the reduction of the amount of returned paddy leaves a problem of finishing brown rice taken out of the sorting machine. There is a problem that the amount of paddy is large. Therefore, it is necessary to check the return paddy by the operator's eyes and change the rotation speed of the rotary selection tube by the operator's manual operation.
There is a problem that labor saving of sorting work and improvement of sorting accuracy cannot be easily achieved.

"Means for Solving the Problem" Therefore, the present invention provides a hull sorting device including a hulling unit having a derolling unit, and a sorting unit having a rotary sorting tube for separating the slid rice from the hulling unit into brown rice and hull. In the device, a return paddy sensor for detecting the amount of return paddy taken out from the sorting section is provided, and the return paddy sensor is connected to the rotation speed adjusting member of the rotary sorting tube, and the paddy stripping section of the sorting section is a paddy section. The return paddy sensor is attached to the return paddy passage connected to the paddy receiving part.

[Operation] Therefore, it is possible to save the trouble of manually controlling the rotation speed of the rotary selection tube by visually measuring the amount of return paddy from the sorting section, and when the return paddy increases, it is possible to control the rotation speed of the rotary selection tube to the hull section. It is possible to prevent an increase in the amount of finished brown rice that is returned, and also to prevent an increase in the amount of paddy mixed in the finished brown rice that is extracted from the sorting unit by the low-speed rotation automatic control of the rotary sorting cylinder when the amount of returned paddy rice is reduced. Labor saving of sorting work and improvement of sorting accuracy can be easily achieved, and further, since a returning paddy sensor is provided by using a returning paddy passage connecting the sorting part and the paddy hull part,
For example, the return paddy amount can be properly detected by the sensor without being affected by the paddy supply from the outside to the paddy hull part, and the detection structure and the mounting structure of the return paddy sensor can be simplified and the detection function can be improved. Etc. can be easily achieved.

[Examples] Examples of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a sorting speed control circuit diagram, and FIG. 2 is a sectional front view of the whole. In the figure, (1) is a hulling section, (2) is a hopper for throwing in paddy, (3) and (4) are a pair of derollers that are provided opposite the lower part of the hopper (2), and (5) is the hopper. (2) A shutter for opening and closing the lower part, (6) a deployment lever for emergency opening of the rolls (3), (4) by manual operation, and (7) a release rate for adjusting the gap of the rolls (3), (4). It is a removal rate motor that is an adjusting member, and is configured to remove the paddy continuously.

In the figure, (8) is a wind-selecting section on which the hulling section (1) is mounted, and a machine (9) that forms the wind-selecting section (8), a brown rice extraction gutter (10), and a brown rice conveyor (11). ), A small rice pick-up chute (12) and a small rice receiver (13) for carrying out the small rice separated from the brown rice falling on the gutter (9), and a grain dispersion plate (14) and a shell plate (15). ) Through the derolling rolls (3) (4) to receive the scraped rice (brown rice and paddy) to receive the scraped rice pick-up gutter (16) and the scraped rice conveyor (17), and the scraped rice. The rice husk from the scraped rice is provided with the rice porridge chute (18) and the rice porcelain receiver (19) for receiving the rice husks separated from Are configured to be separated.

In the figure, (21) is a sorting section that is placed on the wind selecting section (9) and is installed in parallel with the hulling section (1). As shown in FIG. A separating cylinder (22) for separating the cylinder and the cylinder (22)
Selection output pulley (2) that drives the cylinder (22) to rotate in one direction via the support rolls (23) that rotatably support the
3 _a ), a supply gutter (24) and a supply conveyor (25) to be inserted in the selection cylinder (22), and a brown rice receiving gutter (26) and a brown rice receiving conveyor (27) juxtaposed with these, and each of the conveyors. (25) and conveying output pulley for rotating (27) in one direction (25 _a) (27 _a), said sorting cylinder (22) rice scraping blade (28) provided in the sorting terminated internally ...
And the hoppers (2) for the paddy picked up by the blades (28) ...
And a chute (30) for communicating the end of the brown rice receiving conveyor (27) with the brown rice picking gutter (10),
The paddy is separated from the brown rice and taken out respectively.

And the brown rice lifting sloa (31) that communicates the lower end side to the brown rice conveyor (10), and the lower end side communicates with the slidable rice conveyor (17) so that the upper end side faces the feed conveyor (25) feed start end. The slid-off rice lifting sloa (32) is erected along the outside of the machine (9), and the hulled rice sorting motor (33) that drives the above-mentioned parts (1), (8) and (21) is provided. To do. In addition, in FIG.
(34) is a partition plate for adjusting the amount of brown rice received into the brown rice receiving gutter (26).

Also, a selection drive shaft (35) that is interlockingly connected to the motor (33),
Said drive shaft (35) rotatably supported to the V-belt (36) via a respective conveying output pulley (25 _a) conveying input pulley to be coupled to the (27 _a) (37)
And a continuously variable selection input pulley (39) which is pivotally supported by the drive shaft (35) and is connected to the selection output pulley (23 _a ) via a V belt (38), and the input pulley (39) is changed in speed. A speed change arm (40) to be operated and a speed change motor (42) screw-connecting the output screw shaft (41) tip screw part to the speed change arm (40) are provided, and rotation selection is performed by forward / reverse control of the motor (42). The rotation speed of the cylinder (22) is configured to be increased or decreased.

Further, as shown in FIG. 1, the return paddy from the sorting section (21) is returned to the paddy section (1) and returned to the chute (29).
3) is attached, and a sensing arm (46) for fixing the contact plate (44) for contacting the return paddy falling from the chute (29) to one end and screwing the balance weight (45) to the other end, A potentiometer-type return paddy sensor (48) connected to the middle of the arm (46) via an operation fulcrum shaft (47) is provided, and the return paddy quantity (returned brown rice quantity) falling from the chute (29) is detected by the sensor. It is configured to be detected by.

Then, the returned paddy quantity comparator (5) having a reference setter (49) for initially setting the returned paddy quantity reference value from the chute (29)
0), the sensor (48) is connected to the comparator (50) via the amplifier (51), while the speed-up and speed-down circuit is connected.
(52) Via the (53), the speed change motor (4
2) is connected to each circuit (52) (53).
4) is connected to the input, the power supply (56) is applied to each part via the main switch (55), and the motor (42) is rotated forward and backward by pulse (intermittent) control based on the output of the sensor (48). It is configured as follows.

As is clear from the above, the hulled part (1) having the deal (3) (4), and the rotary selection tube (22) for separating the slid rice from the hulled part (1) into brown rice and paddy In a hulling / sorting device having a sorting section (21), a return paddy sensor (48) for detecting the amount of returned paddy taken out from the sorting section (21) is provided, and a rotation speed adjusting member for the rotary sorting tube (22). Returning to the variable speed motor (42) is the paddy sensor (48)
With connecting the return paddy sensor (48) to the chute (29) which is the return paddy passage that connects the paddy stripping part of the sorting part (21) to the paddy receiving part of the paddy part (1), and Sensor
Rotating sorting cylinder (22) when the return paddy detected by (48) increases
While the automatic control automatically rotates at a high speed to prevent an increase in finished brown rice that is returned to the hulling section (1), when the number of returned hulls decreases, the rotary sorting tube (22) is automatically rotated at a low speed to sort the sorting section (21). It is configured to prevent an increase in the amount of paddy mixed in the finished brown rice extracted from.

The present invention is configured as described above, and during the hulling and sorting work, the scraped rice (mixed of brown rice and paddy) fed from the wind selecting section (8) into the rotary sorting tube (22). The amount of rice returned to the hopper (2) from the rotary selection tube (22) via the chute (29) also increases due to the increase in the amount of rice, and the amount of brown rice returned increases in proportion to the amount of the returned rice. An increase in the amount of return paddy from the chute (29) is detected by the return paddy sensor (48),
Pulse drive control of the variable speed motor (42) via the return paddy amount comparator (50) and speed increasing circuit (52) to increase the rotation speed of the rotary selection tube (22) and remove it from the brown rice gutter (26) Increase the amount of brown rice and improve the sorting efficiency.

On the other hand, since the amount of slid rice (mixed rice) inside the rotary sorting cylinder (22) is reduced, the rotary sorting cylinder (2
The amount of returned paddy that returns from 2) to the hopper (2) also decreases, and the amount of returned brown rice also decreases in proportion to the amount of the returned paddy, and the shoot (29) above
The decrease in the amount of return paddy from the return paddy sensor (48) is detected, the speed change motor (42) is pulse-driven through the return paddy amount comparator (50) and the speed reduction circuit (53), and the rotation selection tube (22 )
The rotation speed of is reduced to reduce the amount of finished brown rice taken out from the brown rice gutter (26) and improve the sorting accuracy.

In the above example, the amount of return paddy of the shoot (29) was detected by the return paddy sensor (48), but instead of this, the amount of brown rice or the ratio of brown rice contained in the return paddy of the shoot (29) was set. Even if it is detected by the sensor (48), the shift motor (42) can be controlled as in the above embodiment.

"Effects of the Invention" As is clear from the above examples, the present invention provides a deroll
(3) A huller provided with a hulling part (1) having (4) and a sorting part (21) having a rotary sorting tube (22) for separating the slid rice from the hulling part (1) into brown rice and hull In the sorting apparatus, a return paddy sensor (48) for detecting the amount of return paddy taken out from the sorting section (21) is provided, and the return paddy sensor (4) is provided to the rotation speed adjusting member (42) of the rotary selection tube (22).
While connecting 8), the return paddy sensor (48) is attached to the return paddy passage (29) that connects the paddy stripping part of the sorting part (21) to the paddy receiving part of the paddy part (1). The amount of return paddy from the sorting section (21) can be visually measured to save the labor of manually controlling the rotation speed of the rotary sorting tube (22), and the rotation of the rotary sorting tube (22) at high speed when the return paddy increases. Hulling part by automatic control
It is possible to prevent an increase in the amount of finished brown rice returned to (1), and to increase the amount of paddy mixed in the finished brown rice extracted from the sorting section (21) by the low speed automatic control of the rotary sorting cylinder (22) when the amount of returned paddy decreases. Compared to the conventional one, labor saving of sorting work and improvement of sorting accuracy can be easily achieved, and further, a return paddy passage (29) connecting the sorting unit (21) and the hulling unit (1) is provided. Since the return paddy sensor (48) is provided by using it, for example, the paddy section (1)
It is possible to properly detect the amount of return paddy by the sensor (48) without being affected by the supply of paddy from the outside, etc., and to simplify the detection structure and the mounting structure of the return paddy sensor (48) and The detection function can be easily improved.

[Brief description of drawings]

FIG. 1 is a selection speed control circuit diagram showing an embodiment of the present invention,
FIG. 2 is a sectional front view of the whole, and FIG. 3 is an explanatory view of a main part drive. (1) ... Hulling part (3) (4) ... Derolling roll (21) ... Sorting part (22) ... Rotating sorting cylinder (42) ... Speed change motor (rotation speed adjusting member) (48) ... Return paddy sensor

Claims (1)

[Claims] 1. A hulling section (1) having derolling (3) (4),
Rotating sorting cylinder that separates the slid rice from the paddy section (1) into brown rice and paddy
(22) In a paddy sorting device having a sorting unit (21) having, a return paddy sensor (48) for detecting the amount of return paddy taken out from the sorting unit (21) is provided, and the rotary sorting cylinder (22) While connecting the return paddy sensor (48) to the rotation speed adjusting member (42), the return paddy passage (29) for connecting the paddy take-out portion of the sorting portion (21) to the paddy-receiving portion of the paddy-sheathing portion (1). A hulling / sorting device comprising the return hull sensor (48).