JPH0593552U - Hulling device - Google Patents

Abstract

(57) [Summary] A distance sensor (31) for detecting the vertical distance from the upper surface of the paddy is provided in the feed hopper (2) of the depreading rolls (3) and (4), and the paddy of the paddy supply device (14) is provided. Supply amount control valve (27)
The opening and closing control is performed based on the detection result of the distance sensor (31), and conventional control such as hunting is eliminated and proper control for maintaining a predetermined amount of grains in the hopper (2) is performed. For example, the distance sensor (3
It is possible to easily control the opening and closing of the control valve (27) in proportion to the amount of change in distance (increase / decrease amount of paddy) detected by 1), and properly determine the paddy increase / decrease situation of the hopper (2). The paddy supply can be easily maintained in the optimum state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hulling device that automatically adjusts the amount of hull supply of a hulling machine.

[0002]

[Prior Art]

 Conventionally, several paddy sensors (limit switches) have been installed in the hopper above the dehulling roll of the hulling machine to turn on / off the drive of the paddy feeding device to the hulling machine and supply the paddy to the paddy feeding device. The shutter provided at the mouth was turned on / off (opened / closed) to control the amount of paddy supplied to the paddy huller.

[0003]

[Problems to be solved by the device]

 However, in the conventional on / off control, problems such as hunting are likely to occur, and if the amount of paddy in the hopper is detected using a photoelectric sensor or an ultrasonic sensor, it may be detected by an object to be detected. There is a problem that the initial setting of the reference value is difficult because the reflectance and the like are different.

[0004]

[Means for Solving the Problems]

 According to the present invention, therefore, a distance sensor that detects the vertical distance from the upper surface of the paddy is provided in the dehopper roll supply hopper, and the paddy feed amount control valve of the paddy feeder is set based on the detection result of the distance sensor. It is configured to control the opening and closing, eliminates the occurrence of hunting and other inconveniences, and can appropriately perform control to maintain a predetermined amount of grains in the hopper.

Further, a grain sensor is provided in the dehopper roll supply hopper, and the distance sensor value is used as a reference value when the grain sensor detects that a predetermined amount of paddy has stayed in the hopper. The control valve control is configured to be automatically performed, and the reference value of the distance sensor can be easily initialized even if the object to be detected is different, and the amount of paddy in the hopper can be accurately detected. ..

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view of a main part, and FIG. 2 is an overall external view. In the figure, (1) is a huller, (2) is a paddy supply hopper of the huller, (3) and (4) are hoppers ( 2) a pair of depulling rolls installed in the lower part, (5) a mixed rice elevator that feeds the unmixed mixed rice to the rocking sorter (6), and (7) an elevator (5) The mixed rice tank of the rocking sorter (6) that stores the mixed rice through the discharge chute (8), and (9) the supply tank that supplies the mixed rice of the tank (7) to the rocking sorter (10). , (11) is a discharge gutter that discharges the grain after selection, and the slid-down mixed rice that has been depleted by the huller (1) is shaken and sorted by the rocking sorter (6) of the rocking sorter (6). 10) Swing motion to separate brown rice from paddy and take it out to the delivery chute (12) through the discharge gutter (11). The paddy tank (1) for storing dried paddy ) And a paddy elevator (14) which is a paddy feeding device for feeding the paddy of the tank (13) to the paddy huller (1), and the paddy is continuously fed to the hopper (2). It is configured to do the work.

Further, the hulling machine (1) includes a hulling shutter (16) for opening and closing the hull supply port (15) of the hopper (2) and an air cylinder (17) for opening and closing the shutter (16). The feeding roll (18) for fixedly flowing the paddy from the hopper (2) to the removing rolls (3) and (4) and the movable removing roll (4) supported via the adjustment link (19) are fixed. Side air removing roll (3) and the stepping air cylinder (20) that adjusts the removing pressure of each roll (3) (4) variably for each step, and the removing roll (3) ( 4) Sorting by discharging straw debris such as rice husks from the mixed rice falling from the mixed rice falling through the mixed rice downflow port (21) to the grain plate (22) with the suction wind force of the suction and discharge fan (23). An air passage (24) is provided, and the mixed rice that has been slid off the depulling rolls (3) and (4) is mixed after being wind-selected. It is configured to be supplied to the mixed rice tank (7) by the combined rice elevator (5).

The paddy supply port (25) from the paddy tank (13) to the paddy elevator (14) passes through the main shutter (26) for opening and closing the supply port (25) and the supply port (25). A supply amount adjusting valve (27) for adjusting the flow rate of the paddy is provided, an air cylinder (28) for opening and closing the shutter (26), and a supply motor for adjusting the opening degree of the adjusting valve (27). (29), and the amount of paddy supplied from the paddy tank (13) to the paddy elevator (14) can be adjusted.

Further, the hopper (2) of the huller (1) is provided with a grain sensor (30) formed by a limit switch at a predetermined height position on the inner side surface of the hopper (2). In addition, a photoelectric sensor (31), which is a distance sensor for detecting the distance from the paddy surface in the vicinity of the sensor (30), is provided on the upper surface of the inner wall of the hopper (2), and a predetermined amount is provided inside the hopper (2). The grain sensor (30) detects that the grain remains, and the distance between the upper surface of the grain inside the hopper (2) and the photoelectric sensor (31) is detected by the amount of reflected light received by the sensor (31). It is configured to do.

Further, as shown in FIG. 3, a hulling switch (33) provided with a hulling control circuit (32) composed of a microcomputer and turned on by driving operation of the removing rolls (3) (4). And an increase circuit (34) and a decrease circuit (35) that connect the sensors (30) (31) to the control circuit (32) and open and close the control valve (27) by rotating the supply motor (29) forward and backward. ) And electromagnetic valves (36) (37) for driving the air cylinders (17) (28) to the control circuit (32). The hulling switch (33) and the sensors (30) Based on the detection result of (31), the shutters (16) and (26) and the control valve (27) are opened and closed, and a dep roll (3) (with a predetermined amount of grains retained inside the hopper (2) ( Perform hulling work according to 4). Is configured.

The present embodiment is configured as described above, and as shown in the flowchart of FIG. 4, when the hulling switch (33) is turned on by driving the derolling rolls (3) (4), the air cylinder The main shutter (26) is opened by (28) to supply the paddy to the hopper (2). The grain sensor (30) is turned on when a predetermined amount of paddy remains in the hopper (2), and the amount of reflected light received by the photoelectric sensor (31) at this time is stored as a reference value. The hulling shutter (16) is opened by the air cylinder (17), and the hull of the hopper (2) is supplied to the removing rolls (3) and (4) to start the hulling operation.

Then, after a lapse of a predetermined time, the amount of reflected light received by the photoelectric sensor (31) is input, the sensor (31) value is compared with the reference value, and the increase or decrease of the paddy is detected with the upper surface of the paddy (sensor). It is detected by the change in the distance with 31), and when the distance becomes large, the control valve (27) is opened by the supply motor (29) in proportion to this, while when the distance becomes small, The amount of paddy supplied to the hopper (2) in proportion to the amount of change in the distance from the upper surface of the paddy detected by the sensor (31) by closing the regulating valve (27) by the feed motor (29) in proportion to this. To keep the amount of paddy in the hopper (2) substantially constant, and to close the main shutter (26) when the paddy hull switch (33) is turned off to put it in standby. Grain sensor (3 The distance between the photoelectric sensor (31) and the upper surface of the paddy in the hopper (2) when 0) first detects the paddy is a reference value, and the distance between the photoelectric sensor (31) and the upper surface of the paddy is larger than the reference value. The opening of the control valve (27) is changed largely when the change is large, and the opening of the valve (27) is changed small when the change is small, and the distance between the photoelectric sensor (31) and the upper surface of the paddy is less than a predetermined value. Occasionally, the valve (27) or shutter (26) is fully closed, and at the end of the hulling operation, only the shutter (26) is closed, and the valve (27) is supported at a predetermined opening to supply when restarting the operation. It is configured so that the amount can be easily adjusted.

[0013]

[Effect of the device]

 As is apparent from the above-described embodiments, the present invention provides the supply hoppers (2) of the removing rolls (3) and (4) with the distance sensor (31) for detecting the vertical distance from the upper surface of the paddy. The paddy supply amount control valve (27) of the supply device (14) is configured to be opened / closed based on the detection result of the distance sensor (31), which eliminates conventional problems such as hunting and eliminates hopper (2). The control valve (27) can be controlled in proportion to the amount of change in the distance detected by the distance sensor (31) (increase / decrease amount of paddy). The control for opening and closing can be easily performed, and the paddy supply can be easily maintained in the optimum state by appropriately judging the paddy increase / decrease state of the hopper (2).

Further, a grain sensor (30) is provided in the supply hopper (2) of the removing rolls (3) (4), and a predetermined amount of paddy is retained in the hopper (2) by the grain sensor (30). This is configured so that the control of the adjustment valve (27) by the distance sensor (31) is automatically performed using the value of the distance sensor (31) when it is detected as a reference value. However, the initial setting of the reference value of the distance sensor (31) can be easily performed, the amount of paddy in the hopper (2) can be accurately detected, and the amount of paddy supply to the hopper (2) can be functionally controlled. The hopper (2) has a large capacity, because the rice can be supplied to the dew rolls (3) and (4) in a stable manner even if the amount of temporarily stored paddy in the hopper (2) is reduced. It is possible to easily reduce the size of the device.

[Brief description of drawings]

FIG. 1 is an explanatory cross-sectional view of a huller.

FIG. 2 is an overall external view.

FIG. 3 is a hulling control circuit diagram.

FIG. 4 is a flowchart of the previous figure.

[Explanation of symbols]

 (2) Supply hopper (3) (4) Depulling roll (14) Paddy lifter (paddy supply device) (27) Supply amount control valve (30) Grain sensor (31) Photoelectric sensor (distance sensor)

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hiroshi Yasushi Yasushi Yasushi 428 Enami, Okayama City Seirei Industrial Co., Ltd. In-house

Claims (2)

[Scope of utility model registration request] 1. A depletion roll supply hopper is provided with a distance sensor for detecting a vertical distance from an upper surface of a paddy, and a paddy feed amount control valve of a paddy feeding device is controlled based on a detection result of the distance sensor. A hulling device characterized by being configured as follows. 2. A grain sensor is provided in the dehopper roll supply hopper, and the distance sensor adjusts the distance sensor value when the grain sensor detects that a predetermined amount of paddy has stayed in the hopper as a reference value. The hulling apparatus according to the above-mentioned item 1, characterized in that the valve control is automatically performed.