JPH0449967B2 - - 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 a method for automatically feeding out a paddy bag.

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 at the bottom of 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 that automatically fills a paddy bag with paddy has been devised, but in this existing example, one iron piece provided on the paddy bag side is attached to a magnet, etc. provided on the feeding device side. The paddy bag is fixed with The paddy bag is fed out with the center of the paddy bag approximately aligned with the center of the discharge port, and then the bag-opening iron piece at the center of the upper end of the paddy bag is pulled out by the suction tool of the bag-opening device. Although the paddy bag is properly suctioned and the paddy bag is opened and inserted into the discharge port, if the paddy bag is old, the iron pieces on one side of the paddy bag may sag or stretch as described above. Even after positioning, the center of the paddy bag does not match the center of the discharge port, and the top center of the paddy bag hangs down, so the iron piece for opening the paddy bag is stuck in the bag opening device. It has the disadvantage that it cannot be properly clamped or adsorbed by the tool.

In view of the above-mentioned circumstances, the present invention conveys the iron piece on one side of the rice bag to a predetermined position in front beyond the discharge port, and restricts the movement of the iron piece on the other side of the rice bag with a stopper, thereby removing the rice bag. The paddy bag is pulled diagonally to the hanger bar and fed out so that the center of the paddy bag approximately coincides with the center of the discharge port, and then, in this state, the iron piece for opening the paddy bag is pulled out by the suction tool of the bag opening device. The paddy is clamped and suctioned by the suction tool, the stopper is released, and the iron piece on one side is returned to be aligned with the center of the paddy bag held by the suction tool, thereby solving the above-mentioned drawbacks. The purpose of this invention is to obtain a method for automatically feeding out paddy bags in a filling device.

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 paddy bags 7 are suspended in two rows, and in the center of the space A, there are paddy bags capable of carrying out the method according to the present invention so as to be able to collide with the central end portion of the paddy bags 7. An automatic feeding device 9 is provided.

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 shutter cover 12 is fixedly installed above the shutter cover 12. 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.

The automatic paddy bag dispensing device 9 has a chain case 21 serving as a guide surface, as shown in FIGS. A driving sprocket 23 connected to a conveying motor 22 is supported within the base. Furthermore, the drive sprocket 23
A chain 26 is wound between the chain 26 and a floating sprocket 25 built into the distal end side of the case 21, and a support 27, which is a conveyor having rollers, is connected to a predetermined position of the chain 26. . A bracket 29 (see Figures 1 and 5) is fixed to the support 27 and extends to the inner left and right hanger bars 6, and the bracket 29 has brackets 29 attached to both sides of the upper end of the paddy bag 7. installed iron piece 7
a (see Figures 6 and 9)
a is fixed. In addition, 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 chain case 21 to move to the clamping position and the release position. Can be switched. In addition, the tip of the case 21 is connected to the auto shutter 11 via a vertical movement device 31 (see Figures 1 and 7) consisting of a link mechanism, and the paddy bag is moved in conjunction with the vertical movement of the auto shutter 11. The feeding device 9 is designed to be swung up and down to the position shown by the solid line and the position shown by the chain line. In addition, in Figures 5 and 6, the reference numeral 32
A stopper plate for stopping the bag is configured to be retractable by a spring 33 and a rod 35. Further, S5 and S6 are reversing switches provided on the stopper plate 32, S7 is a potentiometer for detecting the position of the magnet 29a and the clamping arm 30, that is, the position of the support 27; What is shown is a paddy bag stopper which will be described later.

As shown in detail in FIGS. 10 and 11, the rice bag stoppers 36, 36 are made up of a rotary solenoid 47, a flexible body 48 such as a spring, and a rod 49, and are located between the middle portions of the outer hanger bars 6, 6. neighborhood,
That is, it is located near the hanger bars 6, 6 on the side where the paddy bag feeding device 9 is not located, and usually the rod 49 of the stopper 36 is connected to one iron piece 7a of the paddy bag 7.
The rod 49 comes into contact with the bar and stops further feeding of the paddy bag 7, and the rod 49 retreats from the traveling path of the iron piece 7a by energizing the rotary solenoid 47, releasing the stopping action of the paddy bag 7.

Furthermore, an automatic bag opening device 37 for the paddy bag 7 is disposed at the discharge port 10 portion of the hopper 5. The bag opening device 37, as shown in FIGS. 8 and 9,
It has a gear case 39, and a large number of gears 40a to 40e are built in the case 39.
The drive gear 40a is connected to a bag opening device drive motor 41 (see FIG. 1) via a transmission shaft 38, and gears 40d and 40e that mesh with each other and have the same number of teeth each have an arm 42. ,4
3 are connected. Furthermore, these arms 42,
At the tips of the 43, paddy bag suction devices 45, 45 made of, for example, magnets are supported, respectively, and each of these suction devices 45 has a built-in paddy bag sensing switch (not shown).

In FIG. 8, S9 and S10 are upper and lower limit switches of the suction tool 45, which are controlled by an arm 46 attached to the drive gear 40a. In addition, in Fig. 1, what is indicated by the symbol S12 behind the driver's seat 2 is a start button for the paddy filling device, and
1, 8, and 9 is a bag-opening iron piece attached to the center of the upper end of the rice bag 7, which is sucked by the suction tool 45 of the bag-opening device 37. Furthermore, what is indicated by the reference numeral 7c in FIGS. 1, 7, and 9 is a portion that is inserted into the hanger bar 6 provided at the lower part of the iron piece 7a at both ends of the rice bag 7.

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

Prior to operation, the bracket 29 and the clamping arm 30 of the paddy bag dispensing device 9 are in a standby state at position A in FIG. When the start button S12 (see Fig. 1) of the paddy filling device is pressed in this state, the transport motor 22 (see Fig. 5) rotates, and the support 27, which is a transport body, is rotated through the chain 26.
is moved from A to B, and at this time, the arm 30 is opened by the cam surface 21a of the case 21 as shown by the chain line. Then, the magnet 29a of the bracket 29 comes into contact with the iron piece 7a of the paddy bag 7 and attracts only one piece, and the reversing switches S5 and S6 (see Fig. 5) are activated by the pressure of the bracket 29, and the motor 22 is reversed. and move the support tool 27 in the direction from R to A. As a result, only one paddy bag 7 is conveyed forward based on the attraction of the magnet 29a, and during the conveyance, the clamping arm 30 is moved to the cam surface 21a.
The paddy bag 7 is switched to the clamping position by the magnet 29.
By the suction by a and the push by the arm 30, it is reliably conveyed beyond the discharge port 10 to the further forward position C. At this time, the other end of the rice bag 7 is temporarily fixed by the other iron piece 7a coming into contact with the bag stopper 36, as shown in FIG. The paddy bag 7 is stretched tightly and positioned so that the center of the paddy bag 7 substantially coincides with the center of the discharge port 10.

In this state, the bag opening device drive motor 41 (see FIG. 1) rotates based on the signal from the potentiometer S7, and the gears 40a, 40d, and 40 rotate.
The arms 42 and 43 are synchronously rotated downward via e, and the pair of suction tools 45 collide with the bag-opening iron pieces 7b on both sides of the stretched rice bag 7 in an appropriate positional relationship. . Then, the lower limit switch S10 is turned on and the paddy bag detection switch provided on the suction tool 45 is turned on, thereby turning on the bag opening device driving motor 4.
1 is stopped, the rotary solenoid 47 of the bag stopper 36 is energized, and the stopping action on the other side of the paddy bag 7 is released. In this state, the rice bag conveyance motor 22 is driven in the opposite direction, and the support 27 is moved back to position 2, where it is aligned with the center of the hopper outlet 10, and then stopped, as shown in FIG. be done. Therefore, in this state, the paddy bag 7, which is stretched diagonally as described above, is securely clamped and sucked by the bag-opening iron piece 7b at the upper center of the bag-opening tool 45 of the bag-opening device 37. The iron piece 7a at one upper end of the rice bag 7 is aligned with the center of the discharge port 10 so that the opening of the rice bag 7 is fully opened during the next bag opening operation, and the iron piece 7a at the other end can move freely. It's getting old.

In this state, the bag opening device driving motor 4
1 is reversed, the arms 42 and 43 are rotated upward, and as a result, the opening of the paddy bag 7 is opened by the suction action between the bag-opening iron pieces 7b on both sides of the paddy bag 7 and the suction tool 45, and the third As shown in the figure, the discharge port 10 of the hopper 5
At the same time, by moving the suction tool 45 upward, the slack at the hem of the paddy bag 7 is removed.

Then, when the paddy sensor S1 (see FIG. 3) in the hopper 5 is turned on due to the storage of paddy M while the rise of the suction tool 45 is detected by the upper limit switch S9, the rotation of the motor 20 The auto shutter 11 descends and opens the discharge port 10,
Paddy M is supplied into a paddy bag 7. At the same time, the vertical movement device 3
1 (see Figs. 1 and 7), the automatic paddy bag dispensing device 9 of 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. At the same time, the holding of the rice bag 7 by the magnet 29a and the clamping arm 30 is forcibly removed.
Then, when the automatic feeding device 9 is raised to a predetermined position, this is detected by a lift detection switch (not shown), and its ON operation causes the carrier 27 to move the bracket 29 and the clamping arm 30 to the lower paddy bag 7.
It is returned and stopped from position D in FIG. 7 to above the initial position A without any interference.

In this way, when the paddy bag 7 approaches a nearly full state due to the supply of paddy M, the paddy sensor S1, which had been returned to the off position in the downstream state, is activated by the auto shutter 11.
Then, it starts to stagnate through the discharge port 10 and is turned on again by the paddy M, so the auto shutter 1
1 is raised and closes the discharge port 10. and,
In conjunction with the rise of the autoshutter 11, the automatic paddy bag dispensing device 9 is operated by the vertical movement device 31 in the opposite manner to the above-mentioned operation during the rise and is lowered, thereby transporting the carrier 27, that is, the bracket 29 and the clamping arm 3.
0 is returned to the initial standby position shown in FIG. 7A.

As explained above, according to the present invention, the paddy bag 7
One of the iron pieces 7a fixed to the upper part of the hanger bar insertion part 7c is moved to a predetermined position C in front of the discharge port 10 of the hopper 5 by the carrier 27, which is moved along near the upper part of the one hanger bar 6. While conveying, the other iron piece 7a is brought into contact with and stopped by the rice bag stopper 36 provided near the middle part of the other hanger bar 6, and the rice bag 7 is first pulled diagonally against the hanger bars 6, 6. Since the paddy bag 7 is fed out one by one so that the center of the paddy bag 7 roughly coincides with the center of the discharge port 10, even if the paddy bag 7 is old, it will not sag or stretch. Even if the iron piece 7a is transported and the other iron piece 7a is
Since the paddy bag 7 can be accurately positioned in a taut state due to the restraining action of the paddy bag 7, the subsequent holding and suction position by the suction tool 45 of the bag opening device 37 can be adjusted to the upper center of the paddy bag 7. It can be made to match the iron piece 7b. After the paddy bag 7 is clamped and suctioned as described above, the paddy bag stopper 36 is released, and the transport body 27 is given a return motion, so that the one iron piece 7a is clamped by the suction tool 45. Since the paddy bag 7 is aligned at approximately the same position as the center of the paddy bag 7, in this state, the opening of the paddy bag 7 is made to have enough room by the subsequent opening operation at the lower part of the discharge port 10. It will be on standby so that it can be opened quickly and reliably. In this way, according to the feeding method according to the present invention, the rice bag 7 is always reliably positioned at a predetermined position corresponding to the feeding process.
As a result, the number of feeding errors and the like is drastically reduced, and the efficiency of the entire operation of the paddy filling device is significantly improved.

[Brief explanation of drawings]

Fig. 1 is an overall side view showing a combine harvester in which the method for automatically feeding out paddy bags according to the present invention is implemented, Fig. 2 is a rear partial front view thereof, and Fig. 3 is a portion showing the structure of the discharge port portion of the hopper. An enlarged view, Fig. 4 is a cross-sectional view taken along the - arrow in Fig. 3, Fig. 5 is a plan view of the work space, Fig. 6 is a front view of the work space as seen from the front, and Fig. 7 is also a view from the rear. 8 is a rear front view showing the automatic paddy bag opening device, FIG. 9 is a side view of the same bag opening device, FIG. 10 is a front view showing another example of the bag stopper, and FIG. 11 is a front view showing another example of the bag stopper. The figure is a side view thereof. 5...Hopper, 6...Hanger bar, 7...
Rice bag, 7a... Iron piece, 7b... Iron piece for opening the bag, 7c
... Hanger bar insertion part, 27 ... Transport body (supporting device), 29a ... Magnet, 30 ... Clamping arm, 3
6...Paddy bag stopper, 37...Bag opening device, 45...
...Adsorption tool, A...Work space.

Claims (1)

[Claims] 1 Both ends of the upper part are inserted and guided through two parallel hanger bars 6, 6 to create a work space A below the hopper 5.
Hanger bar insertion part 7 of paddy bag 7 prepared at the back
One of the iron pieces 7a fixed to the upper part c is conveyed to a predetermined position C in front of the discharge port 10 of the hopper 5 by the conveyor 27 moving along the upper vicinity of one of the hanger bars 6, and the other iron piece 7a is brought into contact with and stopped by the rice bag stopper 36 provided near the middle part of the other hanger bar 6, and the rice bag 7 is pulled diagonally with respect to the hanger bars 6, 6, and the center of the rice bag 7 is The paddy bag 7 is fed out one by one in such a manner that its portion approximately coincides with the center of the discharge port 10, and then, in this state, the bag opening iron piece 7b provided on both sides of the upper center part of the paddy bag 7 is attached to the suction tool of the bag opening device 37. 45, the paddy bag stopper 36 is released, and the transport body 27 is moved back, thereby releasing the paddy bag 7 that has been clamped by the suction tool 45 of the bag opening device 37. A method for automatically feeding out paddy bags in a paddy filling device in which the paddy bags are aligned at substantially the same position as the center.