JPH0634737U - Sorting amount control device for huller - Google Patents

Abstract

(57) [Summary] [Purpose] In the device for controlling the angle of the polished rice control valve (5) of the removing unit (1) so that the amount of sorting in the sorting cylinder (22) is constant, a control motor ( 38) Match the control time with the change in the amount of scraping. [Structure] When the control motor (38) is moved for a certain period of time, mechanical means for changing the movement of the valve for controlling the angle of the rice depending on the position of the valve for controlling the rice (5) is used as the motor (38) and the valve for controlling the rice. Prepared for (5).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sorting amount control device for a grain hulling machine having a sorting cylinder for separating the scraped rice into brown rice and paddy.

[0002]

[Prior art]

 Conventionally, a sensor detects the amount of sorting in the sorting cylinder, and the angle of the grain polishing valve in the removing unit is controlled to keep this sensor value at a set value. I had the skill to possess.

[0003]

[Problems to be solved by the device]

 In the above-mentioned prior art, the change in the sliding amount when the valve is changed by a certain angle changes depending on the position of the rice polishing valve (see FIG. 9, the closer the rice polishing valve is located to the fully open position, the closer it is to the fully opened position). , The amount of drop-off is large due to a change in the valve's constant angle.) Depending on the position of the polished rice control valve, if the movement of the control motor is not changed, the selection amount in the selection cylinder may hunt or the tracking delay may occur. The control is not stable. However, it has been difficult to change the movement of the control motor depending on the position of the polished rice control valve, because the control circuit is complicated and the cost is high.

[0004]

[Means for Solving the Problems]

 Therefore, in the present invention, in the device for controlling the angle of the polishing rice control valve in the removing unit so that the selection amount in the selection cylinder is constant, when the control motor is operated for a certain time, the position of the polishing rice control valve is changed. The mechanical means for changing the movement of the valve angle is provided between the motor and the sliding rice control valve by means of the conventional control circuit for controlling the control time of the control motor and the change of the sliding amount. They can be matched, and stable selection amount control can be performed.

[0005]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of a slide-down amount adjusting section, and FIG. 2 is an overall cross-sectional view of a huller. In the figure, (1) is a removing unit, (2) is a supply hopper for charging paddy, (3) and (4) are a pair of removing rolls provided below the hopper (2), and (5) ) Is a grain control valve that controls the amount of paddy supplied to the rolls (3) and (4), (6) is a shutter that opens and closes the lower part of the hopper (2), and (7) is the removing roll (3) ( It is a removal rate motor that adjusts the gap in 4), and is configured to remove the paddy continuously.

Further, (8) in the figure is a wind selecting section on which the removing section (1) is mounted, and a machine casing (9) forming the wind selecting section (8) and a brown rice removing gutter (10). And a brown rice conveyer (11), a small rice unloading machine for carrying out the small rice separated from the brown rice falling on the gutter (10) to the outside of the machine, a gutter (12) and a small rice receiver (13), a grain scattering plate (14) and Sliding down rice pick-up gutter (16) and sliding down rice conveyor (17) that receive slid down rice (brown rice and paddy) facing down the de-pulling rolls (3) and (4) through a grain board (15). ), A rice cake removing gutter (18) and a rice cake receiver (19) that receive the rice cake separated from the scraped rice, and a dust suction fan (20) that discharges the rice husks separated from the scraped rice to the outside of the machine. It is configured to separate the rice husk from the scraped rice.

Further, as also shown in FIG. 3, reference numeral (21) in the drawing is a sorting section which is placed on the wind selecting section (8) and is installed in parallel with the removing section (1), and is continuously rotated in one direction. Inside the sorting cylinder (22), a sorting cylinder (22) that separates the scraped rice into brown rice and paddy, a sorting motor (24) that rotationally drives the barrel (22) via bearing rolls (23). The supply gutter (25) and the supply conveyor (26) to be inserted, the brown rice gutter (27) and the brown rice receiving conveyor (28) arranged in parallel with these, and the amount of scraped rice (sorting amount) in the barrel (22) The sensor for detecting the amount of scraped rice (29) and the gutters (25) (27) are installed upright so that the angle can be adjusted. 27) A finishing rice sluice valve (30) for adjusting the amount of brown rice to be received, and this sorting end inside the barrel (22). It is provided with a paddy-raising blade (31) to be provided and a chute (32) for sending the paddy picked up by the blade (31) to the hopper (2), and the scraped rice is separated into brown rice and paddy and respectively taken out. Is configured as follows.

Then, a brown rice lifting sloa (33) that communicates the lower end side to the brown rice conveyor (10) and a lower end side that communicates to the slid-down rice conveyor (17) and the supply conveyor (26) at the upper end side. ) A sliding-down rice lifting sloa (34) facing the feed start end is erected upright along the outside of the machine casing (9), and a hulling motor (35) that drives the above-mentioned parts (1) and (8). ) Is provided.

As shown in FIG. 3, a potentiometer (36) for reading the amount of scraped rice (layer thickness) in the sorting cylinder (22) picked up by the scraped rice amount sensor (29) and shown in FIGS. 1 and 4. As shown in FIG. 6, the potentiometer (36) and the sorting cylinder (22) are provided with a control motor (38) that opens and closes the grain polishing rice regulating valve (5) through a control amount regulating mechanism (37). ), A dial type standard setter (39) for setting the standard amount of scraped rice (standard selection amount), and a control circuit (40) for the amount of scraped rice (selection amount) in the selection cylinder (22). The output port of the control circuit (40) via a drive circuit (not shown) and the potentiometer (36) as shown in the flow chart of FIG. 7. Value becomes the value of the standard setter (39) As described above, the motor (38) is intermittently rotated forward or backward for a fixed period of time to control the opening / closing of the polished rice control valve (5) to keep the amount of the removed rice in the sorting cylinder (22) constant. It is configured as

Then, as shown in FIGS. 1 and 4, the grain rice regulating valve (5) rotatably and pivotally supports the paddy discharge port portion (41) of the hopper (2) through a valve shaft (42). The base end of the paddy is integrally pivoted and the valve shaft (42) is rotated inside the paddy discharge port (41) as a fulcrum to increase or reduce the area of the paddy discharge port (41). The flow rate of the paddy at the paddy discharge port is adjusted) to adjust the supply amount of the paddy to the lower removing rolls (3) and (4). 41) The motor (38) is attached to the outside via a bracket (43), and the control amount adjusting mechanism (37) is provided between one end of the valve shaft (42) and the control motor (38).

The control amount adjustment mechanism (37) integrally connects one end of a feed shaft (46), which is a male screw, to a motor shaft (44) of a control motor (38) via a shaft coupling (45). At the same time, the other end of the feed shaft (46) is rotatably supported by a bearing body (48) attached to the paddy discharge port (41) via a bracket (47), and the feed shaft (45) is connected to the valve shaft ( 42) A guide body, which is a tensioning member that is directly stretched in the horizontal direction and is provided with an adjusting piece (49) that is a nut body that is screwed to the feed shaft (45) and that surrounds the piece (49). (50) is fixed to the outside of the paddy discharge part (41), and an adjusting pin (51) protruding from the top (49) to the left and right sides is provided from the guide groove (52) of the guide body (50) to the left and right sides. The rotation provided by said motor (38) The movement of the adjusting piece (49) and the adjusting pin (51) directly acts on the valve shaft (42) to linearly reciprocate in the horizontal direction. The valve shaft (42) has a base end integrally with one end. An abutting plate (53) fixed to the above is provided, and the tip side of the plate (53) is brought into contact with and supported by one adjusting pin (51), and the motor (38) is intermittently rotated forward for a fixed period of time. By intermittently moving the adjusting pin (51) horizontally to the right in the drawing, the valve shaft (42) is intermittently rotated clockwise through the contact plate (53), and the sliding rice adjusting valve (5) is moved. While intermittently moving the motor to the open side, the motor (38) is intermittently reversed for a certain period of time to intermittently move the adjustment pin (51) horizontally toward the left side of the drawing. The valve shaft (42) is intermittently rotated in the counterclockwise direction via the ) Are configured to intermittently move close side to.

Further, the control amount adjusting mechanism (37) moves the valve (5) at a certain angle according to the position of the rice polishing valve (5) when the motor (38) is moved for a certain time (1 step). As is clear from FIG. 5, the angle of the backing plate (53) that moves by the constant moving distance (A) of the adjusting pin (51) that moves when the motor (38) moves for a certain time, that is, The rotation angle of the polished rice control valve (5) is configured so that it becomes smaller (larger) when the polished rice control valve (5) is closer to the fully open position (fully closed position) (α <β), The control time of the motor (38) and the change in the sliding amount are mechanically matched.

Further, as shown in FIG. 4, a spring bearing () is provided at one end of the valve shaft (42) protruding outside the paddy discharge port (41) opposite to the control motor (38) and the control amount adjusting mechanism (37). 54) is integrally attached, and a tension spring (56) is stretched between the movable spring receiver (54) and a fixed spring receiver (55) fixed to the outside of the paddy discharge part (41) to adjust the adjustment. The contact plate (53) is elastically supported by the pin (51), and the control motor (38) that mechanically transmits the motion by the control amount adjusting mechanism (37) and the contact plate (53) on the side of the polished rice adjusting valve (5). It is configured to eliminate play (rattle) and to improve the accuracy and stability of the sorting amount control.

[0014]

[Effect of device]

 As is apparent from the above embodiments, the present invention provides an apparatus for controlling the angle of the polished rice control valve (5) of the removing unit (1) so that the selection amount in the selection cylinder (22) is constant. When the control motor (38) is moved for a certain period of time, a mechanical means (37) for changing the movement of the valve for controlling the angle of rice is controlled by the motor (38) and the valve for controlling the amount of rice. It is provided between (5) and the control time of the control motor (38) and the change in the sliding amount can be matched by the conventional control circuit, and the tracking delay due to hunting due to overcontrol or insufficient control. This is a remarkable effect that enables stable and stable selection amount control.

[Brief description of drawings]

FIG. 1 is a side view of a slide-down amount adjusting section.

FIG. 2 is an overall cross-sectional view of a huller.

FIG. 3 is a sectional view of a sorting unit.

FIG. 4 is an explanatory plan view of a slide-down amount adjusting unit.

FIG. 5 is an explanatory view of the operation of a controlled variable adjusting mechanism.

FIG. 6 is a control circuit diagram.

FIG. 7 is a flowchart.

FIG. 8 is a graph showing changes in the amount of scraping.

[Explanation of symbols]

 (1) Removing part (5) Polishing rice control valve (22) Sorting cylinder (29) Sliding rice amount sensor (36) Potentiometer (39) Standard setting device (40) Sorting amount control circuit (37) Control amount adjusting mechanism (38) Control motor

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

Claims (1)

[Scope of utility model registration request] 1. The sorting amount in the sorting cylinder is constant,
In the device for controlling the angle of the polished rice control valve of the removing unit, when the control motor is moved for a certain period of time, mechanical means for changing the movement of the valve depending on the position of the polished rice control valve is used as the motor. A sorting amount control device for a grain huller, which is provided between the grain polishing valve and a grain polishing valve.