JPH0462688B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hopper shutter control device for a combine harvester, a harvester, etc., and particularly for automatically filling a paddy bag with paddy from the hopper and removing auxiliary paddy from the space below the hopper. The present invention relates to a hopper shutter control device suitable for application to a combine harvester equipped with an automatic paddy filling device for sending out paddy to a receiving floor.

Conventionally, the hopper has a paddy sensor near its discharge port, but when paddy overflows from the paddy bag and accumulates at the discharge port, the paddy sensor detects the pressure of the paddy and closes the shutter. It was hot. Therefore,
When a paddy bag is prepared at the discharge port and the operation of a combine harvester etc. is started, the paddy sent to the hopper is directly supplied to the paddy bag. There were cases where the paddy bag was fed with slack strings, and before the specified amount of paddy could fit into the paddy bag, it became full, turning on the paddy sensor and closing the shutter. In particular, in the case of automatic paddy filling equipment, there is a back support arm that pushes the back of the full bag in order to push the full bag onto the auxiliary paddy receiving floor. is supplied,
Not only was the paddy bag not filled with the specified amount of paddy, but the full bag could no longer be sent out using the delivery device.

The present invention has been made in view of the above-mentioned circumstances, and the shutter is opened by detecting that an appropriate amount of paddy has accumulated at the hopper discharge port, and a predetermined amount of paddy is dropped at once. It is an object of the present invention to provide a hopper shutter control device that eliminates the above-mentioned drawbacks by removing the slack in the hem of a paddy bag.

Further, the present invention provides a method in which a paddy sensor and a shutter opening/closing position detecting means disposed at the hopper discharge port are connected to a shutter opening/closing drive means, so that when the paddy sensor detects paddy while the shutter is closed, the shutter is activated. A hopper shutter control device is characterized in that the shutter is configured to open the shutter and close the shutter when a paddy sensor detects paddy while the shutter is open.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the combine 1 has a paddy filling section 3 behind the driver's seat 2.
The paddy filling part 3 is provided with a hopper 5 and a space A below the hopper 5. In the space A, paddy bags 7 are hung in two rows by four hanger bars 6, and the paddy bags 7 are hung in the center so that the central end of the paddy bags 7 can be hung. A bag feeding device 9 is provided.

On the other hand, the hopper 5 has two discharge ports 10, 10, and an auto shutter 11 is slidably inserted into the discharge ports 10, as shown in FIGS. 3 and 4. At the same time, a shutter cover 12 is fixedly installed above it. The auto shutter 11 is made of a hollow member with a square cross section, and opens when slid downward as shown by the solid line in Figure 3.
The upper end of the shutter cover 1 slides upward.
It is closed when it is fitted with 2. Further, a plate 13 is fixed to the autoshutter 11 so as to protrude from the hopper 5, and an arm 16 is connected to the plate 13 via a pin 15 and a long hole 16a (see FIGS. 1 and 2). figure). The arm 16 is connected to an auto shutter opening/closing motor 20 via a shaft 17 or a link 19. Therefore, the two left and right auto shutters 11 are synchronized by forward and reverse rotation of the motor. It opens and closes. In addition, in Fig. 3, S1 is a paddy sensor, S2 and S
3 are open/close position detection switches of the auto shutter 11, and m is paddy.

On the other hand, the paddy bag feeding device 9 is shown in FIGS.
As shown in the figure, it has a chain case 21 that serves as a guide surface, and the case 21 is rotatably supported at the back side of the space A and is connected to a transport motor 22. A drive sprocket 23 is supported. Further, a chain 26 is wound between the drive sprocket 23 and the floating sprocket 25 on the tip side.
A support 27 having a roller is connected to a predetermined location of 6. The support 27 has brackets 29 extending to the left and right hanger bars 6.
(Fig. 1) is fixed, and the bracket 29
A magnet 29a that attracts the metal fittings of the rice bag 7 is fixed to the. Further, a clamping arm 30 is rotatably supported on the support 27 so as to face the magnet 29a, and the arm 30 is guided by a cam surface 21a on the lower surface of the case 21 and is switched between a clamping position and a release position. . Further, the tip of the case 21 is connected to the auto shutter 11 via a link 31, and in conjunction with the vertical movement of the shutter 11, the paddy bag feeding device 9 swings to the position shown by the solid line and the position shown by the chain line. move. In FIG. 5, reference numeral 32 denotes a stopper plate for stopping the bag, which is configured to be retractable by a spring 33 and a rod 35. Further, S5 and S6 are reverse switches provided on the plate 32, and S7 is a potentiometer for detecting the position of the magnet 29a and the arm 30. Further, in FIGS. 5 and 6, reference numerals 36 and 36 indicate bag stoppers, which are driven by a rotary solenoid 61 in a direction parallel to the plane of FIG. 6.

An automatic rice bag opening device 37 is disposed at the discharge port 10 of the hopper 5, and the bag opening device 37 has a gear case 39 as shown in FIGS. 8 and 9. However, a large number of gears 40a to 40e are built into the case. The drive gear 40a is connected to a bag opening device drive motor 41 (FIG. 1) via a transmission shaft 38, and gears 40d and 40 mesh with each other and have the same number of teeth.
Arms 42 and 43 are connected to e, respectively. The arms 42 and 43 are arranged so as to intersect with each other, that is, the arm 42 extending toward the front of the hopper 5 is connected to the gear 40d on the rear side via a shaft 40d' projecting outward from the case 39. An arm 43 extending toward the back of the hopper 5 is connected to a gear 40e on the front side via a shaft 40e' projecting inward of the case 39. Furthermore,
At the tips of these arms 42 and 43, paddy bag adsorption devices 45 and 45 are rotatably supported, respectively, and the devices 45 are connected to a cover 46 and a bag opening magnet 47.
have. In addition, in the figure, S9 and S10 are upper and lower limit position switches of the suction device 45, and the drive gear 40
It is controlled by an arm 49 provided at a.

Then, as shown in FIGS. 10 and 11,
The suction device 45 is pivotally supported by arms 43 and 42 at its upper part, and together with a balance spring 53 (FIG. 12) to be described later, the magnet 47 is always oriented vertically, and the magnet 47 is centered. The magnets 47 of the pair of adsorption devices 45 have opposing surfaces having the same polarity. Furthermore, a bush 49 having a female thread is fitted and fixed in the hole 47a of the magnet, and a sleeve 50a welded to the center of the bracket 50 is attached to the bush 49.
is screwed on with a male thread formed on its outer periphery. A rod-shaped actuator 51 is slidably guided in the sleeve 50a.
A return spring 52 is compressed between the cylindrical bulging inner end of the actuator 51 and the cover 46 which is fitted and fixed to the bracket 50. Therefore, the actuator 51 is always urged to be in the protruding position as shown by the chain line in FIG. An open bag detection switch S11 is arranged so as to be in contact with the bag opening detection switch S11. The switch S11 is a normally closed switch, and therefore, in the position where the actuator 51 protrudes and contacts the cam portion 51a (the chain line position), the switch S11 is a normally closed switch.
It is OFF, and the actuator 51 comes into contact with the paddy bag 7 and retracts, and is turned ON at a position away from the cam portion 51a (solid line position). In addition, 48 in the figure is a magnet 47
This is an interference material made of rubber, plastic, etc. provided at the center of the attraction surface of the magnet 47, and prevents the magnets 47 from attracting each other. In addition, as shown in FIGS. 12 and 13, the arms 43, 42 and the suction device 45
A balance spring 53 consisting of a torsion spring is disposed between the spring 53 and
acts on the back surface of the magnet 47, and when the adsorption device 45 is in the raised position, that is, when the arms 43, 42 are close to horizontal and there is a large angle between the arms and the adsorption device 45, the biasing force is weakly, and when the suction device 45 is in the lowered position, that is, the arm 4
3 and 42 are nearly vertical, and the arm and suction device 45
When the angle between the two is small, the biasing force acts strongly. Therefore, the surfaces of the magnets 47 of the pair of adsorption devices 45 face each other substantially parallel to each other, and move up and down while maintaining this surface state.

Further, in the space A, as shown in FIG. 17, a movable paddy receiving floor 62 is movably supported on a guide rail 63, and the movable paddy receiving floor 62 is moved in the directions of arrows C and D by a drive cylinder 65. It can be moved and driven within the space A and over the auxiliary paddy receiving floor 64. Micro switches 6 are installed near both ends of the guide rail 63 in the C and D directions.
6 and 67 are provided so as to be able to freely abut and engage with brackets 62b and 62a provided on the movable paddy receiving floor 62, and the movable paddy receiving floor 62 is further provided with a paddy bag detection sensor consisting of a light emitting part 69a and a light receiving part 69b. 6
9 is provided. In addition, a mobile paddy receiving floor 6
2, a back support arm 70 is provided so as to be movable in the directions of arrows E and F in synchronization with the movement of the movable paddy receiving floor 62 in the directions C and D based on a cam.

In addition, FIG. 18 shows each sensor adopted in the combine harvester 1, a motor, a solenoid, etc. that is a driving means, and a device installed in the combine harvester 1, which shows how to open the paddy bag of the combine 1 and transfer paddy to the opened paddy bag. The state of connection with a microprocessor 71 that comprehensively controls operations such as turning on the microprocessor is shown.

On the other hand, as shown in FIGS. 14 to 16, the paddy bag 7 has metal fittings 55 made of iron plates at both ends of its upper part.
is sandwiched therein, and the metal fitting 55 further includes an aluminum eyelet 5 having a hole 56a for the hanger 6.
6 is caulked by the eyelet. Furthermore, metal fittings 57, which serve as targets for the suction device 45, are provided on both sides of the upper center of the rice bag 7. The metal fittings 57 are 4
It consists of a disc-shaped iron piece 57a such as a washer, and a cloth 59 such as vinyl is interposed between it and the bag 7,
Moreover, it is sewn into the bag 7 using a similar cloth 59. As shown in FIG. 9, the outlet 10 of the hopper 5 is slightly offset from the center of the hanger bar 6 due to the flow of paddy inside the hopper, but the metal fitting 57 is located at the center of the paddy bag 7. That is, it is located at the center (L/2) of the hanger bar 6.

Next, the operation of this embodiment having the above-described configuration will be explained.

The magnet bracket 29 and arm 30 of the paddy bag dispensing device 9 are on standby at position A in FIG. From this state, press the start button S of the paddy filling device.
12 (see Figure 1), a start command pulse SP is output from the start button S12 to the microprocessor 71, as shown in Figure 19a.
As a result, the microprocessor 71 enters the automatic control state (ie, the level "1" in the figure indicates the automatic control state) as shown in FIG. The microprocessor 71 immediately connects the support 2 to the transport motor 22.
7, the conveyance motor 22 rotates normally as shown in FIG. 7J, and the support tool is moved from A to B in FIG. At this time, the arm 30 is in an open state as shown by the chain line by the case cam surface 21a. The position of the support 27 is determined by the microprocessor 71 periodically detecting the output X1 (see FIG. 19c) of the potentiometer S7 connected to the transport motor 22 that drives the support 27. I can judge.

In this way, when the support 27 reaches position RO, which is the paddy bag storing position, the magnet 2 of the bracket 29
9a comes into contact with the metal fitting 55 of the paddy bag 7 and attracts only one paddy, and the reversing switches S5 and S6 are activated by further pressure from the bracket 29. When the reversing switches S5 and S6 operate together, the switches S5 and S
6, the pulse signal X2 as shown in FIG.
is output, which causes the microprocessor 71
As shown in FIG. J, the conveyance motor 22 is reversely moved to move the support 27 in the direction from RO to RO. As a result, only one paddy bag 7 is conveyed forward based on the attraction of the magnet 29a, and in the middle of the conveyance, the arm 3
0 is switched to the clamping position by the cam surface 21a,
The paddy bag 7 is reliably conveyed to position C by being attracted by the magnet 29a and pushed by the arm 30. At this time, the other end of the paddy bag 7 is temporarily fixed by a bag stopper 36 made of a flexible body, as shown in FIG. 5, so that the paddy bag 7 is tensioned diagonally.

When it is determined that the support 27 has reached position C based on the signal X1 from the potentiometer S7, the microprocessor 71 controls the bag opening device drive motor 4.
1 is rotated in the downward direction as shown in FIG. 1 on the metal fittings 57 on both sides of the
The surfaces of the magnets 47 of the pair of adsorption devices 45 are brought into contact with each other. The arms 42 and 43 are lowered, and the signal X3 of the lower limit switch S10 is turned ON as shown in FIG. 19f.
and a signal X5 from the bag opening switch S11, which will be described later.
When the bag stopper solenoid 61 is turned on, the bag stopper solenoid 61 is turned on as shown in FIG.
The engagement with is released. Also, lower limit switch S10
Based on the ON state of the bag open detection switch S11, the microprocessor 71 rotates the motor 22 in the forward direction as shown in FIG. back up to. When it is determined from the output X1 of the potentiometer S7 that the support 27 has reached position N, the microprocessor 71 reverses the bag opening device driving motor 41 to move the arms 42 and 43 upward.
The upper limit switch S9 is rotated until the signal X4 of the upper limit switch S9 changes from the OFF state to the ON state as shown in FIG. 19e. As a result, metal fittings 57 are sewn on both sides of the paddy bag.
is attracted to the magnet 47 of the suction device 45, the empty bag 7 is opened, and at the same time, the suction device 45 moves upward to remove the slack at the hem of the paddy bag 7. When the signal X4 of this upper limit switch S9 is turned on, the bag stopper solenoid 6 is turned on as shown in FIG.
1 becomes OFF, the bag stopper 36 returns to a state where it can engage with the paddy bag 7 again, and prepares for the next unloading of the paddy bag 7 by the support 27.

By the attraction of the metal fitting 57 of the magnet 47, the actuator 51 is moved in and out against the return spring 52, and the four open bag detection switches S11 connected in series shown in FIG. 18 are activated as shown in FIG. 19g. As shown, it turns ON, but if there is a problem in the series of operations up to now, for example, if there is a paddy bag in one row but there are no paddy bags in the other rows, there is a mistake in separating the paddy bags. , a transport error, a paddy bag opening error, etc., the metal fitting 57 of the paddy bag 7 is not suctioned by any of the suction devices 45, so the switch S1
Either one of 1 remains OFF,
From switch S11 to microprocessor 71
Signal X5 in ON state is not input. Then,
The microprocessor 71 detects an abnormality in the open state of the paddy bag 7, and drives an alarm lamp 72 and an alarm buzzer 73 shown in FIG. 18 to notify the operator of the abnormality. Furthermore, if there is no empty bag 7 between both magnets 47 when opening a bag using the suction device 45, the opposing magnets 47 have the same polarity and therefore repel each other.
7 will not attract each other and place an excessive load on the bag opening device driving motor 41, and the arm 4 will be easily moved.
2, 43 can be rotated upward.

Then, the shutter 11 is closed and the closed position detection switch S3 is in the ON state (Fig. 19h), and all the open bag detection switches S11 are in the ON state, that is, the paddy bags in the 2 rows have been opened without any trouble (the 21st In Fig. 21 a), when a small amount of paddy m accumulates in the hopper 5 and the output signal from the paddy sensor S1 turns ON (Fig. 21 b, c), the shutter opening/closing motor 20
As shown in FIG. 19m, the automatic shutter 11 is driven until the signal X6 of the open/close position detection switch S2 is turned ON, the autoshutter 11 is lowered, the hopper outlet 10 is opened, and the paddy m is supplied to the paddy bag 7. (Second
Figure 1 d).

At this time, a predetermined amount of paddy m is thrown into the open paddy bag 7 at once, so that the lower end 7a of the paddy bag 7 is placed on the movable paddy receiving floor 6 as shown in FIG.
Even if the back support arm 70 is located on the left side in the figure, the weight of the paddy m that has been dropped and thrown in is corrected to the correct paddy input position on the right side of the back support arm 70, and the later paddy m is input. , and the full bag can be smoothly carried out from the space A by the movable paddy receiving floor 62 (FIG. 21d).

Also, at the same time as paddy supply, auto shutter 11
The paddy bag dispensing device 9 that is interlocked with the paddy bag dispensing device 9 moves upward as shown by the chain line in FIG.
9 and the arm 30 do not interfere with the paddy bag 7,
As shown in FIG. 19j, the conveyance motor 22
The bracket 29 and the arm 30 are rotated in the normal rotation direction, and thereby the bracket 29 and the arm 30 are moved backward to the standby position A. On the other hand, when the paddy bag 7 is opened by the suction device 45, it is in a slightly lifted state, and when the paddy bag 7 becomes heavy due to the supply of paddy to the paddy bag 7, the paddy bag 7 is adsorption device 4
5 (FIG. 21e, and at this time, the switch S11 is in the OFF state as shown in FIG. 19g). Furthermore, even if the paddy bag 7 is removed from the opened state by the suction device 45, since the auto shutter 11 has descended and is located inside the paddy bag 7, filling of paddy can be continued without any problem, and the paddy bag 7 can be opened. It becomes full with the input paddy and overflows to the discharge port 10, turning on the paddy sensor S1 again (FIG. 21f). Then, the shutter 11 opens and the close position detection switch S2 is in the ON state as shown in FIG. (Figure 21g).

Simultaneously with the raising of the shutter 11, the feeding device 9 is lowered, and the magnet bracket 29 and arm 30 are returned to the initial standby position.

FIG. 22 shows the transportation of the paddy bag 7 from the storage position B,
The output and driving status of each sensor and motor during the process of opening the bag and adding paddy are shown. In the diagram, “1” indicates the ON state of a switch or motor, etc., and “0”
indicates the OFF state. Furthermore, sample times 1 and 2
...19 is the sample time in Fig. 19,
It corresponds to...

In this way, even when the first paddy bag 7 is full of paddy and the shutter 11 is closed, paddy will continue to be put into the hopper 5 and stored. When the filled sensor 75 detects paddy m, the microprocessor 71 drives the alarm lamp 72, alarm buzzer 73, etc. to notify the operator that the hopper 5 is full. Therefore, the operator stops the combine harvester 1 and stops further reaping and threshing. Next, the worker gets off the driver's seat 2 and
Operate the hydraulic operating lever 76 shown in the figure. Then, as shown in FIG. 23e, the floor feeding solenoid valve 77 shown in FIG. 18 is turned on and driven, the hydraulic circuit is switched by the valve 77, and the drive cylinder is activated as shown in FIG. 17. 65 is driven, and the movable paddy receiving floor 62 is moved in the direction of arrow D together with the full paddy bag 7 (FIG. 21i). When the movable paddy receiving floor 62 protrudes in the D direction and moves to the auxiliary paddy receiving floor 64, the bracket 62a comes into contact with the switch 67, and its output signal X7 becomes ON state as shown in FIG. 23b, and the valve 77 The drive of the drive cylinder 6 is stopped as shown in FIG.
5 is also stopped in the B direction, and the floor 62 is also stopped.

In this state, the worker lowers the full paddy bag 7 on the movable paddy receiving floor 62 onto the field, but as the movable paddy receiving floor 62 moves in the D direction, the back support arm 70 rises in the E direction. The paddy bag 7 is reliably moved in the direction D together with the movable paddy receiving floor 62, so that the operator can smoothly take out the paddy bag to the auxiliary paddy receiving floor 64 and release it to the field. In this way, the movable paddy receiving floor 62
When the upper full paddy bag 7 is released to the field, it is placed on the movable paddy receiving floor 62 until then.
The bag detection sensor 6 was detecting the presence of the upper paddy bag 7.
9, the state in which the light 79 from the light emitting part 69a was blocked by the paddy bag 7 changes to the state in which the light 79 reaches the light receiving part 69b, and the output signal X8 of the sensor 69 changes to As shown in Figure c, the state changes from OFF to ON. In response to this, the microprocessor 71 turns the floor storage solenoid valve 80 from the OFF state to the ON state as shown in FIG.
The movable paddy receiving floor 62 is moved in the direction A from the previously projected state until the bracket 62b abuts the switch 66. When the bracket 62b comes into contact with the switch 66, the output signal X9 from the switch 62 indicates that the movable paddy receiving floor 62 protrudes in the direction D, as shown in FIG. 23a.
The OFF state changes to the ON state to notify that the movable paddy receiving floor 62 has been positioned at a predetermined position suitable for putting the next paddy into a new paddy bag.
When the signal X9 becomes ON, the microprocessor 71 stops driving the valve 80 and therefore the drive cylinder 65, and stops the movable paddy receiving floor 62 (FIG. 21k).

Note that the movement of the movable paddy receiving floor 62 in the C direction may be performed manually by the operator operating the hydraulic operating lever 76 instead of using the bag detection sensor 69 as in this embodiment. Of course it is possible.

Therefore, the worker presses the start button S12 again, and the microprocessor 71 inputs a new paddy bag 7.
The operator commands the loading of paddy from the hopper 5 into the hopper. Then, the support 27 moves according to the time chart in FIG. 19, and the paddy bag 7 is
The paddy is pulled out from the storage position B on the left side of FIG. Figure (12)) shows the first
As shown in Fig. 9m, the motor 20 was driven, but from the second time onwards, the paddy sensor S1
As shown in Figure 1, since the paddy in the hopper is constantly detected, the moment when the open bag detection switch S11 is turned on and the paddy bag 7 is set below the discharge port 10. will be opened immediately,
Filling of paddy from the hopper 5 is started. Also,
When the motor 20 is driven and the shutter 11 starts to open, the microprocessor 71 immediately instructs the timer 82 to start timing for T seconds. At this point, the motor 20 is driven in the opposite direction to close the shutter 11. (Fig. 21 m, n) When a predetermined amount of paddy has been put into the paddy bag 7 in this way, the worker operates the hydraulic operating lever 76 to move the movable paddy receiving floor 62 to B.
Take out the paddy bag 7 along with the paddy bag 7 when it is full.
is released into the field, and the start button S12 is pressed again to enter the next feeding cycle. After repeating this cycle several times, the paddy in the hopper 5 disappears, and the paddy sensor S1 is activated as shown in Fig. 21p.
When the ON state changes to the OFF state where no paddy is detected, regardless of the elapse of time T seconds,
Immediately turn the shutter 11 on as shown in Figure 21q.
close to complete the loading operation. Therefore, the operator presses the start button S12 again, returns to the driver's seat 2 after setting a new paddy bag, and resumes operation of the combine harvester 1.

As explained above, according to the present invention, when the shutter 11 is closed, the paddy sensor S1
When the hopper detects paddy, it opens the shutter 11, so that a predetermined amount of paddy m is accumulated in the hopper discharge port 10 and thrown into the paddy bag, so that an appropriate amount of paddy is dropped and thrown in at once. As a result, the slack in the hem of the paddy bag 7 is removed, and the paddy bag 7 can be filled with a specified amount of paddy, and is particularly suitable for combine harvesters 1 and the like equipped with devices 62 and 70 for feeding full bags from the space A below the hopper. When applied, the full bag 7 is reliably positioned on the movable paddy receiving floor 62, the hem of the paddy bag 7 is prevented from being caught on the back support arm 70, and the full bag is reliably sent out from the space A. be able to. Furthermore, since the shutter 11 is closed when the paddy sensor S1 detects paddy while the shutter 11 is open, the shutter opening/closing position detection means S2, S3 and the single paddy sensor S1
This allows the shutter to be opened and closed, does not require a large number of paddy sensors, and has a simple structure.
Maintenance becomes easier.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a combine harvester to which the present invention is applied, Fig. 2 is a rear view of its paddy filling section, Fig. 3 is a side sectional view showing the autoshutter of the hopper, and Fig. 4 is its U-U 5 is a plan view of the paddy bag dispensing device, and FIG. 6 is a side view thereof.
Fig. 7 is a side view showing the operation of the paddy bag dispensing device, Fig. 8 is a side view showing the automatic paddy bag opening device, Fig. 9 is a front view thereof, and Fig. 10 is a sectional view showing the suction device. Fig. 11 is a front view of the suction device, Fig. 12 is a side view of the suction device with a balance spring installed, Fig. 13 is a front view thereof, Fig. 14 is a front view of the paddy bag, and Fig. 15 is its side view. A cross-sectional view taken along line X-X, FIG. 16a is a cross-sectional view showing the metal part, b
Figure 17 is a perspective view showing the movable paddy receiving floor part, Figure 18 is a circuit diagram showing the connection state of each sensor, motor, etc. and microprocessor, and Figure 19 is the output of each sensor. A time chart showing the state and driving status of the motor etc., Figure 20 is a sectional view showing the state when paddy is being put into an empty paddy bag,
Fig. 21 is a process diagram showing the procedure for charging paddy from the hopper to the paddy bag, Fig. 22 is a diagram showing the output status of signals from each sensor and motor etc. at each sample time in Fig. 19, and Fig. 23 is This is a time chart showing the control mode of the movable paddy receiving floor. 1... combine harvester, 3... paddy filling section, 5... hopper, 7... paddy bag, 9... paddy bag feeding device, 1
0...Discharge port, 11...Shutter (auto shutter), 20...Shutter opening/closing drive means (motor), 37...Automatic bag opening device, 62...Moving paddy receiving floor, 70...Back support arm , S1...
Paddy sensor, S2, S3...Shutter opening/closing position detection means (switch), m...Paddy.

Claims (1)

[Claims] 1 Attach the shutter 1 to the discharge port 10 of the hopper 5.
1, and by opening the shutter, the paddy m is placed in the paddy bag 7 suspended in the space A below the hopper.
In a shutter control device for a hopper that can feed rice, a paddy sensor S1 for detecting the presence of paddy is disposed at the hopper discharge port, and a shutter open/close position detection means S for detecting the open/close position of the shutter 11 is provided.
2, S3, and the shutter is controlled by a shutter opening/closing driving means 20, and a paddy sensor S1 and a shutter opening/closing position detecting means S2,
S3 is related to the shutter opening/closing driving means 20, and the shutter is opened when the paddy sensor detects paddy while the shutter is closed, and when the paddy sensor detects paddy while the shutter is open. A shutter control device for a hopper configured to close the shutter when the shutter is closed.