JPS62175577A - Cereal grain detecting sensor diagnostic device for cereal grain drier - 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 Field of the Invention This invention relates to a grain detection sensor diagnostic device for a grain dryer.

Conventional technology Conventionally, when a certain amount of grain is circulating in a dryer, a grain detection sensor receives the circulating grain and detects that the grain is circulating, and the grain stops circulating. , the grain detection sensor no longer receives grains and detects if the grains are not circulating, and if it is detected that the grains are not circulating, the dry &! ! The dryer was configured to stop when an abnormality occurred in the dryer.

Problems to be Solved by the Invention The grains stored in the dryer are repeatedly circulated within the dryer while being caused to flow down from the drying chamber by rotating the delivery valve, but the amount of grains delivered is constant.1. ) When the circulating grains are fed out and circulated, the grain detection sensor detects that the grains are transparent, and the grains are fed out with the feeding valve and flowed down. For example, in a type of dryer in which the grain detection sensor detects that the grains are not circulating, the grain detection sensor no longer receives the grains. Repairs are difficult because it is impossible to determine whether the detection sensor has malfunctioned due to aging and no longer detects grain circulation, or whether the feeding valve has malfunctioned and no longer feeds out grains and therefore no longer detects it. In addition, in a dryer configured with two such delivery valves, even if one malfunctions, the grains are delivered and circulated by the other valve, so the grains cannot be detected. The sensor would detect this and the dryer could therefore not be stopped and the quality of the grain being dried could deteriorate.

Means for Solving the Problems This invention provides a delivery valve (2) that rotates to remove grains from a drying chamber (1) in the dryer and allows the delivery valve (2) to gradually increase in number from the start of the dryer. A valve motor (3) that rotates at high speed and a current 6 of this valve motor (3)
In addition, the dryer is provided with a current transformer (4) that detects the circulation of the grains, and a grain detection sensor (5) that receives the circulating grains and detects the circulation of the grains. If the detected current value of the valve motor (3) detected by the current transformer (4) when rotation starts and the grain detection sensor (5) detects grains is within the range of the set current value, the current transformer (4) detects grains. Grain detection sensor (
A grain dryer comprising a determination control device that determines that the grain detection sensor (5) is normal, and determines that the grain detection sensor (5) is abnormal if the detected current value is outside the range of the set current value. The structure of the grain detection sensor diagnostic equipment is as follows.

Effect of the Invention From the trial run of the dryer, the rotation of the valve motor (3) is sequentially increased while rotating the delivery valve (2), and the delivery valve (2) moves the grains stored in the dryer into the drying chamber. (1
), the circulation is repeated while the grains are fed out and allowed to flow down, and when the number of grains that are fed out and circulated reaches a predetermined amount, the grain detection sensor (5) detects the circulating grains, and when this detection occurs, the valve motor ( The current transformer (4) detects the current value of step 3), and the judgment control device compares this detected current value with the set current value, and if the detected current value is within the range of the set current value, drying is detected. Start work and dry the grain.

If the detected current value is outside the range of the set current value, the determination control device stops the dryer.

Effects of the Invention According to this invention, when the grain detection sensor (5) detects that grains are circulating, the flow value of the valve motor (3) that rotationally drives the feeding valve (2) can be changed. Flushware (
4), and the detected current value and the set current value are compared. For example, in a dryer having two delivery valves (2), the detected current value is outside the range on the higher side of the set radio wave value. If so, there is a problem with one of the two trees in the feeding valve (2), and only the wood is feeding out the grains, causing them to flow down.
It can be determined that the detected current value is outside the high range of the set current value, and even though the valve motor (3) has increased to the maximum rotation, the grain detection sensor (5) does not detect circulating grains. If it is not detected, it can be determined that the grain detection sensor (5) is malfunctioning due to aging, etc., and if the detected current value is outside the lower range of the set current value, the grain detection sensor (5) can be determined to have malfunctioned due to aging etc. Even when the dryer is stopped, it can be determined that the grain detection sensor (5) is detecting circulating grains even if the number of circulating grains is smaller than the predetermined amount due to the incorrect mounting position of the sensor (5). Since it can be easily determined whether the grain detection sensor (5) or the delivery valve (2) is malfunctioning, repair work for the dryer becomes easier.

Embodiment In the illustrated example, the machine wall (7) of the dryer (6) has a rectangular shape in plan view that is long in the front and back direction, and is made up of front and rear wall plates and left and right wall plates. 6) is equipped with an operating device (8) for controlling starting, stopping, etc.

A grain collection gutter (9) with a built-in transfer spiral is provided at the bottom of the machine wall (7), and drying chambers (1), (1) are provided vertically above the grain collection gutter (9). This drying room (1)
, (1) At the bottom, the feeding valves (2), (2) are pivotally supported,
A sprocket (10), (10) is fixed to the rear shaft end of this delivery valve (2), (2), and the drying chamber (
1), (1) A hot air chamber (11) is formed inside and communicated with a burner (13) built into a burner case (12) provided on the front wall plate. Drying room (1)
, (1) between the outside and the left and right wall plates is a ventilation chamber (14);
(14) and an exhaust fan (15) provided on the rear wall plate.
A valve motor (3), a motor (16), and a transmission device are provided at the bottom of the rear wall plate, and this valve motor (3) is a variable speed motor, and a pulley (17 ), and the transmission device consists of a pulley (1B) having a transmission gear and a sprocket (19), and this pulley (1B) and the pulley (1B) of the valve motor (3) are connected to each other.
17) has a belt (20) attached to it,
The sprocket (19) of the transmission and the delivery valve (
2), the sprockets (lO) and (lO) of (2) are configured by passing a chain (51), and the valve motor (3) sequentially increases its speed from the start of rotation to increase the speed of the valve motor (3). The amount of grain fed out is increased by the valves (2), (2), and the motor (16) controls the transfer spiral in the grain collecting trough (9), the exhaust air Ja, (15), etc. It has a rotationally driven configuration.

A fuel tank (21) is installed at the front of the dryer (6), and a fuel pump (21) is installed at the outer side of the lower plate of the burner case (12).
22), the fuel pump (22) sucks fuel from the fuel tank (2I) through the fuel hose, and the fuel pump (22) supplies this fuel to the burner (2I) through the fuel supply pipe.
13) The air for combustion is supplied to the burner case (12) by rotating a blower (23) provided on the outer side of the upper plate with a blower motor (24) and passing through a blower duct into the burner case (12). (13) It is configured to blow air inward.

A storage chamber (25) is formed above the drying chamber (1), (1), and a ceiling plate (28) is formed above the storage chamber (25).
(28) and a transfer gutter (27) with a built-in transfer spiral.
A supply port for supplying the transferred grains into the storage chamber (25) is provided in the center of this transfer gutter (27), and a diffusion plate (28) is provided below this supply port to Board (28)
The structure is such that the grains are evenly diffused and returned into the storage chamber (25).

A grain raising machine (28) is attached to the front part of the front wall plate, and a packet conveyor (30) belt is stretched between the upper and lower pulleys inside, and a packet conveyor (30) belt is installed between the upper end and the starting end of the transfer gutter (27). A dispensing tube (31) is provided and communicated with the lower end and the grain collection gutter (9).
) A supply gutter (32) is provided to communicate with the terminal end, and a motor (3
3), the motor (33) drives the packet conveyor (30) belt.

The transfer spiral and the diffusion in the transfer trough (27) @ (2B)
A grain detection sensor (5) is provided in the dispensing tube (31), and this grain detection sensor (5) is connected to both side walls forming the dispensing tube (31). A rotatable shaft (34) protruding through the space between the plates is provided, and the dispensing tube (
An actuator (35) is fixed to this shaft (34) in the shaft (31) in a vertically lowered state, and an arm (34) is attached to one end of the shaft (34).
36) and a switch (37) on the outside of the side wall plate.
is provided, and when a certain amount of grains ejected from the packet conveyor (30) hits the actuator (35), the seven actuators (35) rotate, and the actuator (35) rotates.
The arm (3B) rotates due to the rotation of the arm (3B).
The switch (37) is pressed by the rotation of the switch (36), and this switch (37) is turned on.
) is in the ON state, the grain detection sensor (5) is configured to detect that grains are circulating.

The operating device (8) is box-shaped, and has a start switch (on the top plate) for starting and stopping the dryer (6).
38), stop switch (39), said burner (+3
) to set the temperature of the hot air generated from the hot air temperature setting knob (
40), a timer (41) for setting the operating time of the dryer (6) and a display window for displaying an abnormality or hot air temperature, etc., and a judgment control device 21 is installed inside.
(42) This configuration includes a control device 1i (43) and a current transformer (4) that detects the current value during rotation of the valve motor (3).

The determination control device (42) is connected to the grain detection sensor (5).
an input circuit (44) into which the detection of Vessel (45)
The input circuit (44) into which the exchange value converted by
, a CPU (4B) which performs a comparison operation between the detection input value input from this input circuit (44) and the set value of a constant [h that has been set and stored; Output circuit (
47), and the valve motor (3)
The determination control device 21 (42) controls the grain detection sensor (5) to sequentially change the rotation from low speed to high speed.
) detects grains, the current value of the valve motor (3) at the time of this detection is detected by the current transformer (4), and this detected current value and the setting are stored in the judgment control device (42). If the detected current value is within the set current value, it is determined to be normal and the valve motor (3) is controlled.
The valve motor (3) is continuously controlled at the rotational speed at that time, and if the detected current value is outside the range of the set current value, it is determined that there is an abnormality and the valve motor (3) is controlled to stop. Also, if the control determines that there is an abnormality, the detected radio wave value will be set'! [If the flow value is outside the high range, it is detected that the feed-out lubricant (3) is abnormal, and if it is outside the low flow value, it is detected that the grain detection sensor is installed incorrectly.] Also, when the grain detection sensor (5) does not detect grains even if the valve motor (3) increases to the maximum rotation, the grain detection sensor (5) detects that there is an abnormality. At the same time, each abnormality detection result is displayed on the display window of the operating device (8).

The configuration is such that a buzzer provided on this operating device (8) sounds.

The control device (43) controls each of the switches (38) and (3).
9) and an input circuit (48) into which the operations of each transport (40) and (41) are input; a CPU (49) which compares and performs comparison calculations on various inputs input from this input circuit (4th); The configuration includes an output circuit (50) that receives and outputs various commands based on the comparison results of the CPU (49), and this control device 21 (43) controls each of the motors (16),
(24) and (33) are controlled to start and stop, etc.
Also, operate the hot air temperature setting switch (4o) to reach the set hot air temperature.

The fuel pump (22) is controlled to control the fuel pump (22).
22) Fuel inhaled at 4. This is a configuration for controlling fii.

Further, the determination control device (42) controls the delivery valve.
(2) Or, when the grain detection sensor (5) detects an abnormality and causes the valve motor (3) to abnormally stop +h, the control device (43) controls each motor in conjunction with this stop. This configuration controls stopping of (16), (24), and (33).

In addition, the burner (
13) An air volume detection sensor is provided to detect the presence or absence of outside air passing through the surrounding area, and this air volume detection sensor consists of an actuator and a switch.When outside air is passing through, the 7 actuators are pushed by the outside air and the switch is turned on. The operating device (8) has a configuration in which the exhaust fan (
15) is provided with an electromagnetic switch that can be started and stopped independently, and the electromagnetic switch is operated to stop the exhaust fan (15), and within a predetermined time after the exhaust fan (15) has stopped. It may be configured to detect that a malfunction has occurred in the air volume detection sensor when the air volume detection sensor is not in the off state.

When inspecting the grain detection sensor (5) before starting drying work, operate the tire gap (41) of the operating device (8) and operate the start switch (38).
The dryer (6) is started and the grains stored in the dryer (6) are fed out from the storage chamber (25) through the drying chamber (1) to the lower part by the slow rotation of the feed valve (2). The grain is transferred and discharged by the lower transfer spiral through the collecting trough (9) into the supply trough (32), and then transferred to the grain conveyor (30) of the grain raising machine (29).
) and is transported to the upper part through the dispensing cylinder (31) and transferred to 4A (2).
7) is supplied to the inside of the transfer plate (28) by the transfer spiral in this transfer gutter (27), and is transferred and supplied onto the diffusion plate (28) through this transfer gutter (27), and this diffusion! (28), while repeating the circulation of even diffusion and reduction into the storage chamber (25),
When the rotation of 3) increases and the amount of circulating grains increases, the grain detection sensor (5) detects the circulating grains, and at the time of this detection, the valve that rotationally drives the grain/helper (2). The current value of the motor (3) is detected by the current transformer (4),
Detection current value and setting in the judgment control device (42) tI! If the detected current value is within the range of the set current value, it is detected as normal, and if it is outside the range, it is detected as abnormal, and the abnormal location is detected. At the same time as the message is displayed on the display window of the operating device (8), a buzzer sounds and the dryer (6) stops.

The drying operation is carried out using the six holes (40) of the operating device (8),
(41) and the start switch (38), the dryer (6) is started and at the same time hot air is generated from the burner (13), and this hot air is sent to the exhaust fan (15).
The drying room (
1) Ventilate and pass through the ventilation chamber (14) to the ventilation fan (15)
The grains are sucked and exhausted by the dryer (6) and stored in the storage chamber (25) from the storage chamber (25) to the drying chamber (
1) The inside of the grain is exposed to this hot air while it is being wetted and dried, and the grain is fed out to the lower part by the feeding valve (2), and then passed through the collecting gutter (9) by the lower transfer spiral and into the feeding gutter (32). ) into the packet conveyor (30) of the grain hoist (29).
is transported to the upper part through the dispensing tube (31) and transferred to the transfer gutter (2).
7) is fed into the storage chamber (28) by the transfer spiral in the transfer gutter (27), via the transfer gutter (27), and onto the diffusion plate (28). 25) Spread evenly inward! ! (When the time set by the timer (41) has elapsed after the drying process has been carried out, the dryer (6) is automatically controlled by the control device (43) of the operating mold 22 (8). Automatically stop.

Since the grain detection sensor (5) can be inspected before the drying operation, the dryer 4m (6) will not stop during the drying operation and the drying operation will not be possible. It is also possible to detect whether an abnormality has occurred in 5) or the delivery valve (2),
Repair work becomes easier.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a block diagram, Fig. 2 is a flowchart, Fig. 3 is an overall front view of the dryer partially cut away, and Fig. 4 is a diagram of the dryer. FIG. 5 is an overall rear view of the dryer, FIG. 5 is a partially sectional side view of the dryer, and FIG. 6 is an enlarged front view of a portion of the dryer. In the figure, symbol (1) is the drying chamber, (2) is the delivery valve, and (3) is the drying chamber.
) shows the valve motor, (4) shows the current transformer, and (5) shows the grain detection sensor.

Claims (1)

[Claims] A feed-out valve (2) is provided that rotates and feeds out the grains from the drying chamber (1) in the dryer, and the feed-out valve (2)
) is driven by a valve motor (
3) and a current transformer (4) that detects the current value of this valve motor (3), and the dryer is also equipped with a grain detection sensor (4) that receives circulating grains and detects the circulation of grains. 5)
is provided, and when the feed valve (2) starts rotating and the grain detection sensor (5) detects grains, the current value detected by the valve motor (3) detected by the current transformer (4) is If the detected current value is within the range of the set current value, it is determined that the grain detection sensor (5) is normal, and if the detected current value is outside the range of the set current value, the grain detection sensor (5) is determined to be abnormal. A grain detection sensor diagnostic device for a grain dryer, comprising a determination control device that performs determination control.