JPH0474974B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a pair of left and right support rods with screw portions for locking and transporting a large number of grain bags suspended from the support rods, and the screw portions can be rotated in forward and reverse directions. a drive mechanism is provided, and the drive mechanism is automatically operated so as to feed the hanging grain bags one by one to a bagging portion of the support rod that corresponds to a grain bagging position on the tip side of the threaded portion. The present invention relates to a grain bagging device equipped with a control device for controlling grains.

Conventionally, in the above-mentioned grain bagging apparatus, when configuring a mechanism for feeding out the hanging grain bags one by one,
As shown in FIG. 4, a threaded portion 22b whose helical direction is opposite to that of the normal threaded portion 22a formed on the proximal end portion of the threaded portion 22 on the distal end side of the support rod 10.
is continuous with the normal threaded portion 22a, and
Those sequential/reverse screw threads 2 in the left and right support rods 10
A large number of grain bags 9 are formed in such a state that the boundary positions of 2a and 22b as well as their rotational phases match, and are suspended from the reverse threaded portion 22b at the beginning of conveyance. As the grain bag 9 is transported to the proximal end of the grain bag 22a, the grain bag 9 located at the distal end crosses the boundary between the normal threaded part 22a and the reverse threaded part 22b and moves to the proximal end of the normal threaded part 22a. is detected by a rotation detection sensor of the drive mechanism M to detect a predetermined rotation speed of the threaded portion 22, or by a limit switch type sensor 12' that acts on the grain bag 9 transferred to the forward threaded portion 22a, and based on the detection result. Based on this, when the transfer of only one grain bag 9 is completed, the drive mechanism M is switched to the reverse rotation state, and the remaining grain bags 9 are transferred to the forward threaded portion 22a side by the action of the reverse threaded portion 22b. 1 that has already been migrated while preventing the migration of
The structure is such that only one grain bag 9 is transported to the grain bag filling position located below the grain input port 8a by the transport action of the forward threaded portion 22a.

However, the forward threaded portion 22a and the reverse threaded portion 22
It is technically extremely difficult to ensure that the grain bag 9 crosses the border smoothly and with the left and right timings of the grain bags 9 consistent, and Due to misalignment,
This may cause erroneous detection by the sensor 12', or the two grain bags 9 may be transferred to the right and left forward threaded portions 22a, and the grain bags 9 may be placed at the border between the left and right forward threaded portions 22a and the reverse threaded portions 22b. There was still room for improvement in terms of the reliability of sending out the grain bag 9, as the grain bag 9 became stuck and could not be conveyed.

In view of the above-mentioned circumstances, an object of the present invention is to provide a rational and simple improvement to the grain delivery structure so that only one grain bag can be delivered reliably.

The characteristic configuration of the present invention is that in the above-mentioned grain bagging device, the threaded portion is formed in a unidirectional spiral shape, and the bagging portion corresponding to the grain bagging position on the tip side of the threaded portion has no screw. a sensor is provided for detecting when one grain bag reaches the bagging portion of the support rod due to rotation of the threaded portion, and based on information from the sensor,
The control device is equipped with a rotation switching mechanism that automatically rotates the threaded portion in the opposite direction when one grain bag reaches the bagging portion of the support rod, and its functions and effects are as follows. It is.

In other words, a large number of hanging grain bags are continuously conveyed toward the grain bag filling position on the tip end side of the support rod by the rotation of the unidirectional spiral screw part, and one conveyed grain bag on the tip side is transported. Based on the sensor's detection that the grain bag has reached the bagging part of the support rod, the screw part is switched to the reverse rotation state, so that only the most advanced grain bag is transferred to the bagging part of the support rod, that is, Other succeeding grain bags are stored and conveyed to the base end of the support rod by the reverse rotation of the threaded part while remaining in the part where the threaded part is absent, and only one grain bag is taken out. In other words, the grain bag can simply be delivered to the non-threaded part of the bagging support rod without having to enter the boundary between the forward threaded part and the reverse threaded part, which is technically difficult as in the conventional structure. Since one grain bag is taken out at the same time, one grain bag can be taken out reliably and smoothly without causing any inconvenience such as the grain bag getting caught between the left and right support rods. This made it possible to greatly improve the reliability of the grain bagging equipment.

Furthermore, the sensor that detects when the grain bag has reached the bagging part of the support rod can be applied to the sensor that detects when the grain bag has crossed the boundary of the threaded part in the conventional configuration, and the threaded part can also be threaded in the same direction. Compared to forming a section and a reverse thread section, it is only necessary to form a unidirectional spiral, which has a simpler structure, and it has become extremely advantageous in terms of economy and manufacturing.

Next, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, a reaping pretreatment device 1 that raises and reaps planted grain culms as the aircraft travels and conveys the reaped grain culms to the rear of the aircraft is connected to a reaped grain culm from a crawler-type traveling device 1. A threshing device 5, and a bagging device 6 for threshed grains from the threshing device 5.
A combine harvester is constructed by attaching it to the front of a traveling machine equipped with such equipment.

To configure the threshed grain bagging device 6, as shown in FIGS. It is provided on one side of the device 5, and the grain bag 9 is suspended from the base end side of a pair of left and right bag support rods 10, 10 extending from the inside of the body of the hopper 8. A bag storage section, one grain bag 9 in this storage section is attached to both bag support rods 10,
10, and a filling boot 13 attached to the discharge tube 8a of the hopper 8 so as to be able to slide up and down. A first endless rotation chain that performs downward insertion and upward extraction while opening the filling port of the grain bag 9, opening and closing operations of the shutter 14 of the discharge cylinder 8a, and closing operation of the filling port fastener 15 of the filled bag 9. Each of the 16
A mounting table 17 provided below the hopper 8 and storing the filled bags 9, and a roller that removes the filled bags 9 from both support rods 10, 10 and is juxtaposed on the mounting surface of the mounting table 17. The second endless rotating chain 19 is conveyed while sliding on the top of 18.
is provided on one side of the traveling machine, and a control mechanism (not shown) for automatically operating the bag removal device 11 and both chains 16, 19 is mounted on the traveling machine,
Packing of threshed grain into bags and transporting and storing the filled bags onto the mounting table 17 are automatically performed as follows.

That is, a plurality of grain bags 9 are attached to the storage section with their fasteners 15 released, and
A grain bag 9 is manually attached to the tips of both support rods 10, 10, a boot 13 is manually inserted into the bag 9, and a shutter 14 is manually opened to start the work. When the bag 9 becomes full and the pressure-sensitive sensor 20 detects this, the first chain 16 first closes the shutter, lifts the boot, and closes the fastener in sequence, and then,
A second chain 19 performs the removal of filled bags.
Further, a limit switch type sensor (not shown) detects that the filled bag is removed, and based on the detection result, the empty bag 9 is moved between the support rods 10 and 1.
The bag removal device 11 is operated to send the empty bag 9 to the grain bagging position at the tip end, and another limit switch type sensor 12 detects that the empty bag 9 has reached the grain bagging position, and based on the detection result. Then, the boot 13 is inserted and the shutter 14 is released, and the first chain 16 is operated to resume filling grain into the empty bag 9. Thereafter, each operation is performed automatically in sequence in the same manner as after starting the work. It is set to be carried out.

As shown in FIGS. 2 and 3, the first chain 16 includes a pair of sprockets 27a, which are arranged on the front and rear sides of the hopper 8.
27b, the shutter operation arm 28,
The boot operation arm 29 and the fastener operation arm 30 are provided so as to be rotatable together, and when starting work, the operation arms 28, 29, 30 are in contact with the shutter operation arm 28 and the first limit switch _SW1 for position detection. As the grain bag 9 becomes full, the chain 16 is rotated in the direction of the arrow A, and the shutter operation arm 28 first moves the swing type shutter opening/closing device 31 that is in the release position OP. Close the shutter 14 by pressing it to the closed position CL, and then press the boot operating arm 2.
9 is in the lowered position DN of the swinging boot lifting device 32
Push the button to the raised position UP to pull out the boot 13, and then pull out the fastener operation arm 30.
The fastener 15 is closed by locking and moving the slider operating tool 15a of the fastener 15 toward the rear of the body. Then, when the fastener closing is completed and the fastener operation arm 30 contacts the second limit switch SW ₂ that detects the stroke end, the chain 6 is reversely driven in the direction of arrow B, and the shutter operation arm 28 is moved to the third limit switch SW 2 for position detection. When it comes into contact with limit switch SW ₃ , the chain drive is stopped and each operating arm 28, 2
9 and 30 are on standby at a second standby position where the shutter operating arm 28 and the third limit switch _SW3 are in contact. When the empty bag 9 is attached to the tip of the support rod after the filled bag is removed, the chain 1
6 is driven in the direction of arrow B, and the boot operating arm 2
9 presses the boot lifting device 32 in the raised position UP to the lowered position DN to insert the boot 13, and presses the shutter opening/closing device 31 with the shutter operating arm 28 in the closed position CL to the released position OP. and each operating arm 28, 29, 30
When the bag reaches the first standby position, the chain drive is stopped and the bag waits at that position until the bag is full.

To configure the bag removing device 11, the bag support rods 10, 10 are rotatably attached to their support bosses 21, and bag support rod insertion holes are detected at both lateral ends of the grain bag 9, respectively. A threaded portion 22 for locking and transporting the bag 9 to the grain bagging position by acting on the eyelet 9a attached thereto is formed by attaching a one-way spiral body oriented in the same direction to each support rod 10. The electric motor M serving as an example of a mechanism for driving the threaded portion 22 forward and backward is engaged with the support rod rotation operation arm 10 a provided at the base end of the support rod 10 . It is linked to the support rods 10, 10 through a mechanism 25, and is also linked to the control mechanism so that it can be rotated and stopped by it, so that it operates as follows.

That is, as the second chain 19 takes out the filled bag 9 from the tip of the support rod, both motors M, M rotate in a direction that allows the threaded portion 22 to feed the bag toward the tip of the support rod. As the threaded portion 22 rotates, a large number of grain bags 9 are continuously transferred to the tip end side of the support rod. And transport bag 9
When the limit switch type sensor 12 detects that the one on the leading edge side has reached the grain bagging position at the tip of the support rod 10, it operates the first chain 16 as described above, and also operates the first chain 16 based on the detection result. Then, the change-over switch 26 for changing the drive rotation direction of both motors M, M is automatically operated to move the one bag 9 on the leading edge side to the tip side of the support rod 10 corresponding to the grain bagging position. A plurality of subsequent bags 9 suspended from the threaded part 22 are stored and conveyed to the storage part side by the reverse rotation action of the threaded part 22 while remaining in the bagging part 23 configured in the part where the threaded part is absent. It is set as.

The coil spring 33 shown in FIG. 3 is for urging the bag 9 housed on the proximal end side of the bag support rod 10 toward the threaded portion 22, and the coil spring 33 shown in FIG. The spring 35 allows the boot operating arm 29 to move the boot operating arm 32 to a position where it can pass forward or backward after the boot operating arm 29 presses the boot operating arm 32. After the shutter operating arm 28 has passed the shutter opening/closing tool 31, the leaf spring 36 is used to swing the boot lifting device 32 back into the path of the boot operating arm 29 after the shutter operating arm 28 has passed the shutter opening/closing device 31. After the shutter operating arm 28 has passed, the shutter opening/closing tool 31 is swung into the path of the shutter operating arm 28 while allowing the shutter opening/closing tool 31 to be displaced to a position where it can pass to the side or rearward. This is to maintain the motion return.

Furthermore, when constructing the threaded portion 22 for carrying bags of the support rod 10, instead of attaching a one-way spiral body to the support rod 10, the threaded portion 22 may be formed on the support rod 10 itself; Various improvements can be made to the pitch, screw tooth shape, etc. of the portion 22.

The sensor 12 that detects when a grain bag 9 reaches the bagging portion of the support rod 10 includes various contact and non-contact sensors that act directly on the grain bag 9. or use the threaded part 2
Various configuration changes are possible, such as using a sensor that indirectly detects the arrival of the grain bag 9 by detecting the conveyance rotation speed of 2. Furthermore, based on the information from the sensor 12, the threaded part 22 can be The mechanism for automatically switching to the rotating state is the screw drive mechanism M.
In addition to an electrical changeover switch for switching forward and reverse rotation of the drive mechanism M, which is installed in the power supply circuit of Various configuration changes are possible, such as using a mechanical power transmission switching mechanism for transmitting power to the rotation switching mechanism 22, and these mechanisms are collectively referred to as the rotation switching mechanism 26.

The bag removal device described above can be applied not only to combine harvesters but also to stationary grain bagging devices.

[Brief explanation of the drawing]

The drawings show an embodiment of the grain bagging device according to the present invention, and FIG. 1 is an overall side view of the combine harvester, FIG. 2 is a front view of the threshed grain bagging device, FIG. 3 is a side view of the threshing grain bagging device, and FIG. The figure is a schematic side view of a conventional grain bag delivery device. 9...Grain bag, 10...Support rod, 12...Sensor, 22...Threaded part, 23...Bagging part, 26
...Rotation switching mechanism, M...Drive mechanism.

Claims (1)

[Claims] 1. A drive mechanism in which a pair of left and right support rods 10, 10 is provided with a threaded portion 22 that locks and conveys a large number of grain bags 9 suspended from the support rods 10, and rotates the threaded portion 22 in forward and reverse directions. M is provided, and the support rod 1
Control for automatically operating the drive mechanism M so as to feed the suspended grain bags 9 one by one to the bagging portion 23 corresponding to the grain bagging position on the tip side of the threaded portion 22 among the grain bags 9 of 0 and 10. The grain bagging device is equipped with a grain bagging device in which the threaded portion 22 is formed in a unidirectional spiral shape, and a bagging portion 23 corresponding to the grain bagging position on the tip side of the threaded portion 22 has no screws. A sensor 12 is provided to detect when one grain bag 9 reaches the bagging portion 23 of the support rod 10 by rotation of the threaded portion 22, and information from the sensor 12 is provided. Based on this, the control device is equipped with a rotation switching mechanism 26 that automatically rotates the threaded portion 22 in the opposite direction when one grain bag 9 reaches the bagging portion 23 of the support rod 10. Packing device.