JPH0517094B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is an automatic grain bagging device that is designed to be installed in, for example, a combine harvester or a harvester. This invention relates to a bag feeding method for automatically feeding grain storage bags to a certain position.

[Conventional technology]

In the bag dispensing method of this type of automatic grain bagging device, conventionally, a grain storage bag, which is suspended and supported from a pair of left and right rotating shafts through eyelets, is filled with grain in a predetermined manner by normal rotation of the rotating shafts. At the same time, after filling the grain, the filled bag is released by normal rotation of the rotary shaft, and the next bag is fed out to a predetermined position.

[Problem that the invention seeks to solve]

In those that use this type of bag feeding method,
If the power supply to the grain bagging equipment is cut off due to a temporary power outage (for example, a combine harvester stalls, etc.),
When the power supply starts again, the grain bagging device starts operating sequentially from the activation of the rotating shaft regardless of the state at the time of the power outage, so if the state at the time of the power outage is grain filling operation, the grain bagging device The grain storage bag may be released without closing the top opening.

An object of the present invention is to propose a bag dispensing method that can solve the above-mentioned conventional problems by making simple changes to the starting method using the rotating shaft.

[Means for solving problems]

The characteristic configuration according to the present invention is that when the main switch for the grain bagging device is turned on, the rotating shaft is once operated in the reverse direction and then switched to the normal rotation state to feed out the grain storage bag to a predetermined position and fill the bag. After that, the bag is rotated in the normal direction to feed out the next bag, and thereafter, the bag is rotated in the normal direction to feed out the bags one after another.The operation and effect are as follows.

[Effect]

In other words, focusing on the point that the rotating shaft stops rotating when a sensor etc. detects that the next bag has been fed out to the grain filling position, the main switch is turned on and the rotating shaft is turned on, and the reset starts. In this case, the grain storage bag in the grain filling position is moved backward by first reversing the rotating shaft, and then the grain storage bag is moved back again by rotating the rotating shaft in the normal direction after the reverse operation is performed. When the grain storage bag reaches the predetermined grain filling position, the rotating shaft is stopped and the grain filling operation is performed. When the grain filling operation is completed, the rotating shaft is rotated in the normal direction, and the filled bag is discharged, and at the same time, the next bag is repeatedly loaded.Then, the same grain filling operation is repeated, and during this repetition, the rotating shaft rotates only in the normal direction. Rotate.

Therefore, at the time of a power outage, the grain storage bag that was in the grain filling operation is not released as it is, and the filling operation can be continued.

[Effect of idea]

As a result, there is no chance of the grain storage bag being released during the filling process, making the bagging process more reliable. Therefore, since it is a means to rotate the rotating shaft in reverse and then in forward rotation, it requires only a simple change in the software, such as switching the direction of rotation of the rotating shaft at a limited timing, and is easy to modify. That's fine.

Moreover, since the reversal operation of the rotary shaft is limited to the reset time when the main switch is turned on and activated, the time loss caused by the initial reversal can be minimized.

[Example] An automatic bagging device as one of the bagging devices mounted on a combine harvester will be described in detail. First, the bag feeding mechanism 1 will be described. As shown in FIG. 1, a grain storage bag 4 having eyelets 3, 3 formed near both ends of the upper end opening 4A is suspended and supported from a pair of left and right rotating shafts 2, 2 through the eyelets 3, 3. At the same time, due to the fitting engagement of the eyelets 3, 3 with the thread grooves 5A, 5A of the threaded portions 5, 5 formed at the tips of the rotating shafts 2, 2, the rotation of the drive motors 6, 6 provided at the shaft ends. The grain storage bag 4 is fed out in the direction of the rotating shaft axis as it is driven, and the feeding is stopped at a predetermined grain discharge position.

Next, the bagging device 7 will be explained in detail. A grain storage hopper 8 is installed above the grain storage bag 4 which is stopped at a predetermined position, and a shutter 9 is installed at the lower end of the grain storage hopper 8.
A grain outlet 10 is provided. This grain discharge port 10 is provided with a movable discharge port 11 that moves up and down so that it can be inserted into the grain storage bag 4, and a pair of left and right swinging bag openers 12, 12 are provided on both end surfaces of the grain discharge port 10. The bag opening tools 12, 12 are inserted into the bag opening in conjunction with the lowering operation of the movable outlet 11, and the movable outlet 11 is further lowered to open the bag opening to a size that allows the movable outlet 11 to be inserted. The bag opening tools 12, 12 are configured to swing open to open the bag 4A. A chain mechanism 13 that circulates approximately horizontally above the grain storage bag 4 is provided in the vicinity of the grain discharge port 10, and this chain mechanism 13 includes the shutter 9, the movable discharge port 11, and the upper end opening of the grain storage bag 4. An operating member 19 is attached to the fastener 14 provided therein so as to be operated integrally with the fastener 14. These operating members 19 include a first operating arm 21 that acts on a first arm 15 that is operatively connected to the shutter 9, and a second operating arm 22 that acts on a bell crank-shaped second arm 16 that is operatively connected to the movable discharge port 11. and an engagement arm 18 that engages with a slider 17 provided on the fastener 14 and moves it in the fastener closing direction. Next, a series of operations performed by the chain mechanism 13 will be explained with reference to FIG. The operation member 19 senses that the grain storage bag 4 has reached a predetermined grain filling position from the standby position, and starts operating by the chain mechanism 13. First, as shown by the arrow in the figure, the operating member 19 lowers the movable discharge port 11 and operates the shutter 9 to open.
In addition to carrying out the grain filling operation, the movable discharge port 1
Based on the detection operation of the sensor 20 which is provided near the lower end of the movable discharge port 11 and detects that the grains have been filled up to the vicinity of the lower end of the movable discharge port 11, the shutter 9 is operated to close, and the fastener 14 is then activated. Close it and return to the standby position.

Next, the swinging mechanism for the bag 4 after filling with grain will be described in detail. As shown in FIG.
A support frame 2 that can be vertically swung around an axis P along the axial direction of the rotating shaft 2 is placed at a predetermined position for filling grains.
8 is provided, and this support frame 28 applies an excitation force to the grain storage bag 4 during or after the filling operation, thereby dispersing the grain that tends to bulge below the movable discharge port 11 to the lateral side of the bag 4. This allows the bag 4 to be stored uniformly over the entire storage space.

Next, the operation of the bag dispensing mechanism 1 will be explained in more detail. A presser frame 23 is installed above both the rotating shafts 2, 2 to suppress lifting of the grain storage bag 4 being fed out and transferred, and a bag detection sensor 24 is provided at the tip of the presser frame 23. ing. This bag detection sensor 24 has a contact piece 2 that is pushed up by the upper edge of the bag being fed out.
4a and a microswitch 24B that senses the push-up operation of the contact piece 24a. The bag detection sensor 24 detects that the bag 4 has been delivered to a predetermined grain filling position, and issues a signal to the control device 25 to stop the rotating shaft 2.

From the above configuration, as shown in Fig. 4, when the main switch 26 is turned on to start bagging work, the rotating shaft 2 first rotates in the reverse direction two to three times, and then rotates in the forward direction. Then, the bag 4 is fed out toward a predetermined grain filling position. When the bag 4 comes into contact with the bag detection sensor 24 and stops rotating, the chain mechanism drive motor 6 is activated to perform the bag filling operation.
When the operating member 19 returns to the standby position, the rotating shaft 2 rotates forward in order to feed out the next bag 4. Therefore, the rotating shaft 2 performs reverse operation only at the first operation when the main switch 26 is turned on, and thereafter,
When feeding out the next bag 3, the forward rotation operation is repeated.

[Brief explanation of the drawing]

The drawings show an embodiment of the bag feeding method of the automatic grain bagging device according to the present invention, FIG. 1 is a side view showing the feeding mechanism, FIG. 2 is an overall front view of the automatic bagging device, and FIG. 3 is a front view of the automatic bagging device. FIG. 4 is a front view showing the mechanism that applies vibration to the bag during grain filling, and is a time chart showing the timing of bag delivery. 2... Rotating shaft, 3... Eyelet, 4... Grain storage bag, 7... Grain bagging device, 26... Main switch.

Claims (1)

[Claims] 1. The grain storage bag 4, which is suspended and supported from the pair of left and right rotating shafts 2, 2 via eyelets 3, 3, is fed out to a predetermined grain filling position by normal rotation of the rotating shafts 2, 2, After filling the grain, the filling bag 4 is released by normal rotation of the rotating shaft 2, and
In this bag feeding method of an automatic grain bagging device, in which the next bag 4 is fed out to a predetermined position, when the main switch 26 for the grain bagging device 7 is turned on, the rotating shaft 2 , 2 are once operated in reverse and then switched to normal rotation to feed out the grain storage bag 4 to a predetermined position.After filling, the grain storage bag 4 is operated in normal rotation to feed out the next bag 4, and from then on, it is operated in normal rotation. A method for feeding out bags in an automatic bagging device for grains in which bags 4 are fed out in sequence.