JPH0526448B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically filling a paddy bag with paddy from a hopper in a combine harvester, a harvester, etc., and specifically relates to an automatic paddy bag feeding device.

Traditionally, in order to fill paddy from a hopper into a paddy bag,
In the work space at the bottom of the hopper, one of the plurality of paddy bags prepared in advance at the back of the space is fed out,
Furthermore, it is necessary to open the paddy bag and insert the discharge port of the hopper into it, but since the working space below the hopper has an extremely narrow opening and is relatively deep, the above operation is quite difficult and difficult. It was a hassle. Therefore, we automated the feeding of the paddy bags mentioned above,
A device for automatically filling a paddy bag with paddy has been devised, but in the previously proposed device, the operation for feeding out the paddy bag is simply provided on the side of the device for feeding out the paddy to the iron piece provided on the side of the paddy bag. This is done by utilizing the attraction effect of a magnet, so if an external force is applied to the paddy bag due to resistance from the hanger bar that guides the paddy bag through the insertion,
The magnet easily separates from the iron piece, and as a result, the paddy bag is not normally fed out directly under the hopper's discharge port, which is a disadvantage in that so-called feeding errors often occur.

In view of the above-mentioned circumstances, the present invention provides an arm member consisting of a cam arm part and a clamping arm part, which is attached to a conveying body that is moved along the vicinity of a hanger bar and is equipped with a magnet that is attracted to an iron piece provided on the upper end side of a rice bag. The cam arm is pivotally attached so that it can swing freely and in a free state, the cam arm is biased to stand upright, and as the carrier moves, the cam arm moves into a non-contact recess formed on the lower surface of the case of the main body of the feeding device. The clamping arm portion of the arm member is configured to abut against the flat lower surface of the main body case at the boundary, respectively, and when the paddy bag is attracted and separated by a magnet at the back of the work space, the clamping arm portion of the arm member is moved upward. The paddy bag is opened to ensure that the magnet is attracted to the iron piece of the paddy bag, and when the paddy bag is transported after being separated, the paddy bag is fed out while being held between the magnet and the clamping arm part. The object of the present invention is to provide an automatic paddy bag feeding device in a paddy filling device that eliminates the above-mentioned drawbacks by preventing the iron pieces of the paddy bag from easily separating from the magnet due to external force. .

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, and the paddy filling section 3 includes a hopper 5 and a work space below the hopper 5. A is placed. In the deep part of the space A, there are four hanger bars 6...
A large number of rice bags 7 are suspended in two rows, and an automatic rice bag feeding device 9 according to the present invention is installed in the center of the space A so as to be able to collide with the central end portion of the rice bags 7. is installed.

On the other hand, the hopper 5 has two discharge ports 10, 10, and an autoshutter 11 is slidably inserted into the discharge ports 10, as shown in FIGS. 3 and 4. At the same time, a chatter cover 12 is fixedly installed above it. The auto shutter 11 is made of a hollow member with a square cross section.
As shown by the solid line in the figure, it opens when it slides downward, and closes when it slides upward and its upper end fits into the shutter cover 12. Further, a plate 13 is fixed to the auto shutter 11 so as to protrude from the hopper 5.
The arm 16 is connected to the arm 16 through the pin 15 and the long hole 16a.
are connected (see Figures 1 and 2).
The arm 16 is connected to the shaft 1 as shown in FIG.
7 or via a shaft 18 (see Fig. 1) and a link 19 to an auto shutter opening/closing motor 20. Therefore, by forward and reverse rotation of the motor 20, the two left and right auto shutters can be opened and closed. 11 are opened and closed synchronously. In FIG. 3, S1 is a paddy sensor, S2 and S3 are open/close position detection switches for the auto shutter 11, and M indicates paddy.

And the automatic feeding device 9 for paddy bags according to the present invention.
As shown in FIGS. 5 to 7, it has a chain case 21 which is a main body case, and the base of the case 21 is connected to a fixing plate 23 via a boss member 22 at the inner part of the space A. A drive sprocket 2 is mounted on a shaft 26 in the base, which is rotatably supported and connected to a transport motor 25.
7 is supported. A chain 30 is disposed between the drive sprocket 27 and a floating sprocket 29 built into the front end of the chain case 21.
is wound around the chain 30, and a support 32, which is a carrier, is connected to a predetermined location of the chain 30 via a connecting pin 31, as shown in detail in FIGS. 8a and 10. There is. The support 32 has a plurality of rollers 35 on its side that are guided by a guide rail 33 built into the chain case 21, and a tip 36a extends downward in an L-shape at the bottom. A mounting bracket 36 is fixedly bent. As shown in FIG. 10, a square bracket 37 is fixed to the tip end 36a of the mounting bracket 36 so as to extend above the left and right hanger bars 6, 6. On the back side of both ends, there are iron pieces 39 provided at the upper ends of the paddy bags 7, 7 suspended in two rows (see Figures 8 and 10).
Magnets 40, 40 for attracting the rice grains, respectively, are arranged and fixed in a V-shape in accordance with the inclination of the metal fitting 39 due to the deflection of the rice bag 7. Further, a shaft member 41 is fixed to the intermediate portion of the mounting fitting 36, and arm members 42 are pivotably attached to both ends of the shaft member 41. The arm member 42
is made of a non-magnetic material, and has a clamping arm portion 42a facing the magnet 40 and a cam roller 42 at the end.
As shown in FIG. 11 in detail, the torsion spring 43 of a predetermined strength normally maintains a predetermined angle of the cam arm portion 42b, as if it were an integral member in the shape of a bell crank. Furthermore, the torsion spring 45 provided between the shaft member 41 and the cam arm portion 42b is regulated by the stopper pin 41a provided upright on the shaft member 41, and is in a free state (as shown in FIG. 9). (see position b), the arm member 42 is such that its cam arm portion 42b stands vertically. As the support 32, which is a carrier, moves, the arm member 42 is attached to the case 2 so that its cam arm portion 42b stands upright at a position corresponding to the vicinity of the intermediate portion of the hanger bar 6, as shown in FIG. Non-contact recess 21 formed on the lower surface of
A flat cam surface 21 on the bottom surface of the case 21 with a' as the boundary
an is guided into contact with each other, and its clamping arm portion 42
A clamping position a where a approaches the magnet 40, and the magnet 40
The switch can be switched to an open position c, which is away from the opening position. In addition, as shown in detail in FIG. 11, the clamping arm part 42a of the arm member 42 is configured to efficiently transfer the paddy bag to the hanger bar 6 with as light a load as possible when clamping and pressing the paddy bag 7.
An eyelet 46 (see FIG. 8) that is threaded through the hanger bar 6 of the paddy bag 7 so that it can be fed out along the
It is configured in a shape 42d that can press the vicinity.
In order to press more efficiently, it may be configured to have a shape 42d' as shown in FIG. 12.

In addition, in Fig. 1, the symbol S5 behind the driver's seat 2
5 is a start button for the rice filling device, and 51 is a metal fitting attached to the upper center of the rice bag 7 for opening the bag. And the fifth
In the figure, a potentiometer designated by the reference numeral S9 is installed opposite to the end of the shaft 26, and emits a signal for detecting the position of the carrier 32. 5 and 6, the reference numeral 49 is a bag stopper, and the reference numeral 47 is a paddy bag stopper installed in the center of the inner part of the work space A. Therefore, stopper plates 47a, 47a are biased forward, and reversing switches S6, S7 are provided so as to project slightly forward from the plates 47a, 47a, respectively. In FIGS. 1, 2, and 7, the reference numeral 50 is a bag opening device for the paddy bag 7, and the device 50 is a bag opening device for the paddy bag 7. A pair of magnet devices 50 that are moved up and down
a, 50a. Furthermore, what is indicated by the reference numeral 52 in FIG. 7 and FIG. , which operates downward, and the first
In FIG. 0, the reference numeral S10 indicates a rise detection switch of the automatic feeding device 9 for the paddy bag 7.

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

First, prior to operation, the carrier 32 of the automatic feeder 9 for the paddy bag 7, and therefore the bracket 37 and arm member 42 etc. provided on the carrier 32 are in a standby state at position A in FIG. . In this state, when the start button S5 (see Fig. 1) of the paddy filling device is pressed, the transport motor 25 (see Fig. 5)
rotates, and moves the carrier 32 in the direction from A to B in FIG. 7 via the chain 30. At this time, the carrier 3
2, the cam arm portion 42b of the arm member 42 provided in
a′ (see FIG. 9), and then the cam roller 42c comes into contact with the lower surface 21a of the main body case again, so that the clamping arm portion 42a is fixed to the bracket as shown in FIGS. 7 to 9. It is switched to the open position where it moves away from the magnet 40 provided at 37, and accordingly, the magnet 40 is exposed to be attracted. Then, at position B, the magnet 40 comes into contact with and is attracted to the iron piece 39 of the paddy bag 7 (see FIG. 8) suspended from the front row of the hanger bar 6, and the carrier 32 is moved as it is, and the bracket 37 , magnet 40 and a large number of paddy bags 7...
Reversing switches S6 and S7 provided in a and 47a
(See FIG. 5), the motor 25 is rotated in the reverse direction and the conveyor 32 is moved in the direction of B→A→C. Then, only one paddy bag 7 in the front row is conveyed forward by the attraction of the magnet 40. Then, during the conveyance, after the conveyance body 32 passes a position corresponding to the non-contact recess 21a' as shown in FIG.
By further moving the main body case 21 forward, the cam roller 42c at the tip of the cam arm portion 42b of the arm member 42 is subjected to non-contact and abutting action by the main body case lower surface 21a, so that the arm member 42 is moved near the A position. While being switched to the clamping position at , it is transported toward position C. Therefore, magnet 4
The paddy bags 7 separated by attraction by the magnet 40 are transported for a short time after separation by the attraction action of the magnet 40 alone, but when the transport body 32 passes through the non-contact recess 21a', the arm The clamping arm portion 42a of the member 42 is rotated by a spring 45 (see FIG. 11) so as to guard the immediate rear side of the paddy bag 7, and furthermore, near the position A, it comes into contact with the cam roller 42c and the lower surface 21a of the main case. Since the clamping arm portion 42a is rotationally locked in the clamping position, even if some external force is applied to the paddy bag 7 during the transportation and the iron piece 39 of the paddy bag 7 and the magnet 40 are disengaged, the Due to the guiding action accompanying the rotation of the clamping arm portion 42a, the paddy bag 7 is pressed from the rear side and is again attached to the magnet 40.
The object is approached by the magnet 40 in order to be attracted to it. Then, during the subsequent period from A to C, the paddy bag 7 is transported to position C with the iron piece 39 portion securely held by the attraction action of the magnet 40 and the clamping action of the magnet 40 and the clamping arm portion 42a. be done. At this time, the other end of the paddy bag 7 is temporarily fixed by a bag stopper 49 (see FIGS. 5 and 6) made of a flexible member, etc., and one end of the paddy bag 7 is conveyed to position C as described above. As a result, the paddy bag 7 is drawn out in a diagonally taut state as shown in FIG. In this state, when the potentiometer S9 (see Fig. 5) detects that the carrier 32 is in the C position, the motor 25 is stopped based on the output signal, and at the same time the bag opening device (not shown) is driven. The magnet device 50a, 5 of the bag opening device 50 is rotated.
0a (see Figs. 1, 2, and 7) is rotated downward in synchronization, and is attracted to the metal fittings 51 (see Fig. 1) attached to both sides of the center of the rice bag 7 which is in a stretched state. . Then, the bag stopper 49 at the other end of the rice bag 7 comes off due to the impact force of the magnet devices 50a, 50a, and a lower limit switch (not shown) detects that the pair of magnet devices 50a, 50a are at the lower limit position. As a result, the bag opening device driving motor is stopped, and the conveyor 32 is moved back to the position of the discharge port 10 of the hopper 5 and stopped, as shown in FIG. 7D. Therefore, the rice bag 7 is placed exactly below the discharge port 10 of the hopper 5. Thereafter, when the bag opening device driving motor is reversed and the magnet devices 50a, 50a are rotated upward, the metal fittings 5
1, the empty paddy bag 7 is opened at its mouth and lifted upward and inserted into the discharge port 10 of the hopper 5 as shown in FIG. be done. Then, when the rise of the pair of magnet devices 50a, 50a is detected by the upper limit switch (not shown), the paddy sensor S1 (see FIG. 3) in the hopper 5 is turned on due to the storage of paddy M. , the autoshutter 11 is lowered by the rotation of the motor 20, opens the discharge port 10, and supplies the paddy M into the paddy bag 7. At the same time, by the operation of the vertical movement device 52 (see FIGS. 7 and 10), the automatic feeder 9 for the paddy bag 7 is rotated upward as shown by the chain line in FIG. 7 in conjunction with the lowering of the autoshutter 11. Accordingly, the holding of the rice bag 7 by the magnet 40 and the arm member 42 is forcibly removed.
When the automatic feeding device 9 is raised to a predetermined position, this is detected by the switch S10 (see FIG. 10), and its ON operation causes the carrier 32 to move so that the bracket 37 and the clamping arm portion 42a of the arm member 42 are in the lower position. It is returned and stopped from position D in FIG. 7 to above the initial position A without interfering with the paddy bag 7. In this way, when the paddy bag 7 approaches a full state due to the supply of paddy M, the paddy sensor S1, which had been returned to the OFF position in the flowing state until now, passes through the auto shutter 11 and the discharge port 10, and the paddy begins to stagnate. Since the automatic shutter 11 is turned on again, the automatic shutter 11 is raised and closes the discharge port 10. Then, in conjunction with the rise of the autoshutter 11, the automatic feeding device 9 for the paddy bag 7 is lowered by the vertical movement device 52, and the carrier 32 is returned to the initial standby position shown in FIG. 7A.

As explained above, according to the present invention, the paddy bag 7
An arm member 42 consisting of a cam arm part 42b and a clamping arm part 42a is swung on a carrier 32 that is equipped with a magnet 40 that is attracted to an iron piece 39 provided on the upper end side and is moved along the vicinity of the hanger bar 6. The cam arm portion 42b is urged and pivoted to stand upright in a freely movable and free state, and as the carrier 32 moves, the cam arm portion 42b
The main body case 21 is separated from the non-contact recess 21a' formed in the lower surface 21a of the feeding device main body case 21 at a position near the middle part of the hanger bar 6.
Since the structure is such that the paddy bags 7 are attracted and separated by the magnet 40 in the inner part of the working space A, the clamping arm part 42a of the arm member 42 is moved upward. opened,
The magnet 40 is reliably attracted to the iron piece 39 of the rice bag 7 and separated without being obstructed by the clamping arm part 42a. In addition, at the beginning of transportation after separation,
A clamping arm section 4 that rotates from the open position to the clamping position
Due to the guiding action of 2a, even if the rice bag is disengaged from the magnet 40 due to some external force, it is returned to the adsorption position with the magnet 40. Further, in the clamping position, the iron piece 3 is held in place by the adsorption action between the iron piece 39 and the magnet 40 and by the clamping arm portion 42a and the magnet 40.
Due to the clamping action of the paddy bag 9, the paddy bag 7 is transported in a securely held state. Therefore, even if some external force is applied to the paddy bag 7, the paddy bag 7 is prevented from detaching from the automatic feeding device 9, so mistakes in transporting the paddy bag 7 are drastically reduced, and the overall operation of the paddy filling device is improved. Efficiency is significantly improved.

[Brief explanation of the drawing]

Fig. 1 is an overall side view showing a combine to which the automatic paddy bag dispensing device according to the present invention is applied, Fig. 2 is a rear partial front view thereof, and Fig. 3 is a part showing the structure of the hopper's discharge port. An enlarged view, Fig. 4 is a cross-sectional view indicated by the third - arrow, Fig. 5 is a plan view of the working space, Fig. 6 is a front view of the working space as seen from the front, and Fig. 7 is also seen from the rear. A front view, FIG. 8a is a rear front view showing the main parts of the automatic paddy bag dispensing device, b is a plan view of the carrier, and FIG. 9 is an operation explanatory diagram of the main parts of the automatic paddy bag dispensing device , FIG. 10 is a sectional view indicated by the - arrow in FIG. 8,
FIG. 11 is an enlarged view of the arm member, and FIG. 12 is a view showing another example of the clamping arm portion of the arm member. 5...Hopper, 6...Hanger bar, 7...
Rice bag, 9... Automatic feeding device, 10... Discharge port,
21...Main case, 21a...Bottom surface, 21a'...
...Non-contact recess, 32...Carrier, 39...Silver piece,
40... Magnet, 42... Arm member, 42a...
Clamping arm part, 42b...Cam arm part, 43...
...Spring, 46...Hanger bar insertion part (eyelet), A...Work space.

Claims (1)

[Claims] 1. A large number of paddy bags 7 prepared at the back of the work space A below the hopper 5 are guided through the two parallel hanger bars 6 through the hanger bar insertion portion 46.
Iron piece 39 fixed to the upper end and one hanger bar 6
The paddy bags 7 are automatically fed out one by one along the hanger bar 6 directly below the discharge port 10 of the hopper 5 by the attraction action of the magnet 40 provided on the conveyor 32 that moves along the vicinity of the paddy bag 7. In the device 9, an arm member 42 consisting of a cam arm portion 42b and a clamping arm portion 42a is pivotally attached to the carrier 32 so as to be swingable and biased so that the cam arm portion 42b stands upright in a free state. death,
As the transport body 32 moves, the cam arm portion 42b moves toward the lower surface 21a of the feeding device main body case 21.
The paddy bag 7 is attracted and separated by the magnet 40 in the inner part of the work space A. At times, the clamping arm portion 42a of the arm member 42 is opened upward,
When transporting the paddy bag 7 after separation, the paddy bag 7 is held while being held between the magnet 40 and the holding arm part 42a.
An automatic feeding device for a paddy bag 7 in a paddy filling device configured to feed out a paddy bag.