JPH0517097B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention provides first and second rotating shafts for supporting bag hanging, each having a threaded portion formed at one end thereof, by adjusting the lead angle of the threaded portion. A storage part is formed adjacent to the threaded part of the first and second rotating shafts to support the bag, and the storage part has an opening near the bag opening. With the grain storage bag inserted and supported through a pair of left and right eyelets formed at both ends in the width direction, and with the eyelets screwed into the threaded part, The first band plate for opening the bag is configured to be moved to a predetermined position below the grain discharge port set on the opposite side of the storage section by rotational driving at the grain storage bag, The proximal end of the second strip-shaped reinforcing member for bag opening is integrated with the right eyelet, and the proximal end of the second strip-shaped reinforcing member for opening the bag is integrated with the right eyelet. The distal end portion extending toward the bag opening is attached to the front peripheral edge in the feeding direction of the peripheral edge forming the bag opening, and the distal end portion extends toward the bag opening side from the base end of the second strip-shaped reinforcing member. Attach the distal end portion of the first strip-shaped reinforcing member to the rear peripheral edge in the feeding direction of the peripheral edge forming the bag opening. With the reinforcing members fitted onto the second rotating shaft, each strip-shaped reinforcing member is set at a predetermined position below the grain discharge port in a posture along the lead angle of the threaded portion;
The bag opening is switched to an open state by protruding the tip of the first strip-shaped reinforcing member toward the front in the feeding direction and the tip of the second strip-shaped reinforcing member toward the rear in the feeding direction. The present invention relates to an automatic bagging device for grains configured as follows.

[Conventional technology]

In the feeding mechanism of this type of grain bagging device,
Conventionally, as shown by the two-dot chain line in FIG. 1, the stopping positions of the first and second plate-shaped reinforcing members below the grain discharge port have been set at substantially the same position in the bag delivery direction.

[Problem to be solved by the invention]

However, in this case, the tension force acting on the bag opening due to the variation in the distance between the eyelets provided on the bag and the installation distance between the first and second rotating shafts is slightly different. There is. Therefore,
In some cases, the opening area of the bag opening opened by the first and second strip-shaped reinforcing members was not large enough to insert the movable discharge port.

An object of the present invention is to increase the opening area of the bag by simply changing the stopping positions of the first and second strip-shaped reinforcing members at predetermined positions below the grain discharge port, compared to the conventional structure. The point is to provide what we can secure.

[Means to solve the problem]

The characteristic configuration according to the present invention is such that the first band-shaped reinforcing member, the distal end of which is located further forward in the feeding direction than the base end, stops at a predetermined position below the grain outlet. the second strip-shaped reinforcing member, whose distal end portion is located on the rear side in the feeding direction from the base end portion, is positioned further forward in the feeding direction than the predetermined position below the grain discharge port; It is located at the rear in the feeding direction, and its effects are as follows.

[Effect]

That is, focusing on the fact that the opening of the bag is opened by the first and second strip-shaped reinforcing members taking a posture along the lead angle of the threaded portion, the first strip-shaped reinforcing member By locating the stopping position below the grain discharge port in front of the stopping position of the second strip-shaped reinforcing member in the feeding direction, the tip of the strip-shaped reinforcing member and its strip-shaped reinforcing member can be seen in a plan view. Since the angle between the member and the peripheral edge of the bag located closer to the center of the bag opening can be approximated to a substantially right angle, the opening area can be increased.

〔Effect of the invention〕

As a result, even if the tension force on the bag changes, the opening area of the bag can be reliably increased compared to the conventional structure by simply changing the stopping position for both strip-shaped reinforcing members. This allows the movable discharge port to be smoothly inserted into the bag opening, and reduces work efficiency as much as possible due to incorrect insertion of the movable discharge port into the bag opening.

〔Example〕

Below the grain discharge port 5 of the hopper 8 in which grains are stored, first and second rotating shafts 4A and 4B for hanging and supporting a pair of left and right bags are installed. A grain storage bag 3 having hanging support eyelets 2A and 2B attached to both ends in the opening width direction near 1 is stored and supported,
Threaded parts 2 of eyelets 2A, 2B and both rotating shafts 4A, 4B
1, the bag 3 is sequentially fed out at a constant pitch in the direction of the rotational axis as the bag 3 rotates, and the left and right eyelets 2A, 2 of the grain storage bag 3 are
The proximal ends of the first and second strip-shaped reinforcing members 6A and 6B are integrated into B, and the first strip-shaped reinforcing member 6
The distal end extending from the base end of A toward the bag opening side is attached to the front peripheral edge in the feeding direction of the peripheral edge forming the bag opening 1, and the base of the second strip-shaped reinforcing member 6B is attached. A tip extending from the end toward the bag opening side is attached to the peripheral edge forming the bag opening 1 on the rear side in the feeding direction, and together with the eyelet 2A, the first band plate-shaped reinforcing member 6A and the second strip-shaped reinforcing member 6B are fitted onto the first rotating shaft 4A and the second strip-shaped reinforcing member 6B, respectively, below the grain discharge port. is set in a posture along the lead angle of the threaded portion 21, with the tip of the first strip-shaped reinforcing member 6A facing forward in the feeding direction, and the tip of the second strip-shaped reinforcing member 6B pointing in the feeding direction. The movable outlet 5A, which is held in the grain outlet 5 of the hopper 8 so as to be slidable in the vertical direction, is protruded from the rear side of the bag to switch the bag opening 1 into an open state. An automatic grain bagging device mounted on a combine harvester or the like is constituted, which fills the bag 3 with grain by opening the first shutter 7 while inserted into the opening 1.

To explain in detail the means for feeding out the bag 3, both rotating shafts 4
A, 4B, the first rotating shaft 4A is attached and fixed to the protruding frame 11 which is horizontally swingable around the vertical axis a, and this rotating shaft 4A is attached to the protruding frame 1.
A compression spring 22 provided between the fixed frame 1 and the fixed frame 15 biases the second rotating shaft 4 in a direction away from the second rotating shaft 4.

A spring 1 that elastically pushes out the three groups of bags toward the tip side in the direction of the rotation shaft axis with respect to both rotation shafts 4A and 4B.
2 and 12, and each rotating shaft 4A, 4B
A storage section 1 that supports the bags 3 in a stacked manner in the front and back is located in the middle of the storage section 1.
3, 13, and rotating shafts 4A, 4 in a state engaged with eyelets 2A, 2B are formed on the distal end side from the middle part thereof.
By the rotation of B around the rotation axis, threaded grooves 14, 14 are formed to feed the bag 3 toward the rotation axis, and the threaded portion 2
1 and are provided with motors 16, 16 that rotate the rotating shafts 4A, 4B.

Directly above the rotating shafts 4A, 4B, a holding frame 17 is installed along the axial direction so that it can come into contact with the upper edge of the bag opening 1 from above, and the left and right holding frames 17, 17 are installed at the rear supporting point. are integrally supported so that they can swing up and down. A spring 28 for overcoming the dead point is inflated between the holding frame 17 and the fixed side frame, and lifts the holding frame 17 upward to a horizontal state where it can come into contact with the upper edge of the bag opening 1. It is possible to maintain the posture by switching between the

At the front end of one holding frame 17 in the bag feeding direction, an elastic actuation piece 23 is provided to protrude toward the rotating shafts 4A and 4B through an opening, and the elastic actuation piece 23 is activated by contact with the upper edge of the bag. A limit switch 24 that senses upward movement is provided, and is configured to detect that the bag 3 is fed out below the grain discharge port 5.

In addition, at the tip of the other presser frame 17, there are swinging pieces 25, 25 which are pivotally supported in two upper and lower stages that are horizontally swingable around the vertical axis Y. 20 sliders 9 are stretched in two stages, upper and lower, so that they can come into contact with the movable locking arm 18 and the slider 9, and the swinging pieces 25,
The locking arm 18 is equipped with switches 26, 26 that contact the locking arm 18 of 25 and detects the swinging movement caused by contact with the slider 9, so that when only the upper swinging piece 25 is activated, the locking arm 18 moves to the slider 9. When it is determined that the fastener 9 has been operated without being locked, the locking arm 18 is actuated to perform the fastener closing operation again.

Shutter members 10A, 10 that can be vertically swung around horizontal axes X, X toward the outer side of the lower end of the movable discharge port 5A
A, in its closed state, its tip portions 10a, 10a
The shutter members 10A, 10A are configured to have an uneven shape in a plan view and have misaligned positions, and the shutter members 10A, 10A are stored while being automatically swung to the open position as the movable discharge port 5A descends. The bag opening 1 of the bag 3 is opened wide to guide the insertion of the movable discharge port 5A into the bag 3.

Reference numeral 27 in the figure is used to confirm the open position of the bag 3, and the detection operation detects the first time after the lifting operation lever 5a of the rotary chain 19 to which the locking arm 18 is attached is lowered. It is a sensor that allows operation.

To explain the feeding mechanism in more detail, the first and second rotating shafts 4A and 4B extend in parallel toward the feeding direction, and the first swinging rotating shaft 4A, which extends in parallel, moves from its parallel position to the other one. Second rotating shaft 4B
It is pivoted so that it can swing only in the direction toward which it approaches. Therefore, when feeding out the bag 3, the first rotating shaft 4A is positioned in a swinging position approaching the second rotating shaft 4B, thereby weakening the tension force applied to the feeding bag 3, and allowing the bag to be smoothly fed out. When the bag 3 is positioned at a predetermined position below the grain discharge port 5, the first rotating shaft 4A is set in a parallel position with respect to the second rotating shaft 4B, and the bag 3 is moved away from the second rotating shaft 4B.
A large tension force is applied so that the opening can be performed more smoothly.

Below the grain discharge port, the position at which the first strip-shaped reinforcing member 6A, whose distal end portion is located further forward in the feed-out direction than the base end portion, stops is determined in the feed-out direction with respect to a predetermined position below the grain discharge port. The second strip-shaped reinforcing member 6B, whose distal end portion is located on the rear side in the feeding direction from the base end portion, stops at a position further rearward in the feeding direction than a predetermined position below the grain discharge port. It is located. In other words, the rotating shafts 4A and 4B are configured to have different protruding lengths (that is, the tip of the first rotating shaft 4A is located further forward in the feeding direction than the tip of the second rotating shaft 4B). Therefore, the peripheral edge of the opening 1 of the bag 3 is inclined with respect to the feeding direction, and the bag opening 1
Both the strip-shaped reinforcing members 6A, 6B can be brought close to a posture perpendicular to the peripheral edge located on the center side of Can take up a large area.

[Brief explanation of the drawing]

The drawings show an embodiment of the bag feeding mechanism of the grain bagging device according to the present invention, in which FIG. 1 is an overall plan view, FIG. 2 is an overall front view, and FIG. 3 is an overall longitudinal sectional side view. 1... Bag opening, 2A, 2B... Eyelet, 3...
Grain storage bag, 4A, 4B...first and second rotating shafts,
5... Grain discharge port, 6A, 6B... First and second strip-shaped reinforcing members, 13... Storage section, 21... Threaded section.

Claims (1)

[Claims] 1. First and second rotating shafts 4A and 4B for bag hanging support each having a threaded portion 21 formed at one end thereof, with the lead angles of the threaded portion 21 set in the same direction. A storage part 13 is formed adjacent to the threaded part 21 of the first and second rotating shafts 4A and 4B to support the grain storage bag 3, and a bag opening 1 is provided in this storage part 13. Nearby, a pair of left and right eyelets 2 are formed at both ends of the opening width direction.
The grain storage bag 3 inserted and supported through A and 2B,
With the eyelets 2A and 2B screwed into the threaded portion 21, the first and second rotating shafts 4A and 4B are driven to rotate around their axes to the side opposite to the storage portion 13. It is configured to be fed out to a predetermined position below the set grain discharge port 5, and the base end of the first strip-shaped reinforcing member 6A for bag opening is attached to the left eyelet 2A of the grain storage bag 3, and The proximal ends of the second strip-shaped reinforcing members 6B for bag opening are integrated with the eyelet 2B, and the distal end portions extend toward the bag opening side from the proximal end of the first strip-shaped reinforcing members 6A. is attached to the front peripheral edge in the feeding direction of the peripheral edge forming the bag opening 1, and the distal end extending toward the bag opening from the base end of the second strip-shaped reinforcing member 6B is attached to the front peripheral edge in the feeding direction of the peripheral edge forming the bag opening 1. Attached to the rear peripheral edge in the feeding direction of the peripheral edge forming the bag opening 1. Together with the eyelet 2A, the first band plate-shaped reinforcing member 6A is attached to the first rotating shaft 4A, and the second band plate-shaped reinforcing member 6B is attached to the peripheral edge forming the bag opening 1. are fitted onto the second rotating shaft 4B, and the respective band plate-shaped reinforcing members 6A, 6B are attached to the threaded portion 2 at a predetermined position below the grain discharge port.
1, with the tip of the first strip-shaped reinforcing member 6A facing forward in the feeding direction, and the tip of the second strip-shaped reinforcing member 6B facing the rear in the feeding direction. , a bag feeding mechanism of a grain bagging device configured to protrude and switch the bag opening 1 to an open state, wherein below the grain discharge port, the tip end is further away from the base end in the feeding direction. A stopping position of the first strip-shaped reinforcing member 6A located on the front side is located forward in the feeding direction with respect to a predetermined position below the grain discharge port, and the tip portion is located further back in the feeding direction than the base end portion. A bag feeding mechanism of a grain bagging device in which a position where the second strip plate-shaped reinforcing member 6B located on the side stops is located rearward in the feeding direction from a predetermined position below the grain discharge port.