JPS5925566B2 - Grain bag opening device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rice bag opening device for collecting grains discharged from a grain discharge pipe.

In order to support a large number of bags in a stacked manner on a bag holder, and then mechanically open the mouth of each bag with an opening body, the bag is made of fabric such as cloth or chemical fiber, and the bag posture is not correct. Since the opening was not constant, there were many opening mistakes, making it difficult to put it to practical use. In particular, in order to open the bag by engaging the front outside of the front part with the opening body, the front part may be torn if the opening body is pulled out forcibly, and the grains may come off during opening and the grains may fall out of the bag. There is also a risk of leakage. This invention eliminates these deficiencies.
To this end, the present invention has taken the following technical measures.

That is, the grain bag 1 is attached to the bag holder 3 provided on both the left and right sides of the grain discharge tube 2 configured to discharge grains, and the grain bag 1 is attached to the bag holder 3 provided on both the left and right sides of the bag opening 4 at the rear of the discharge tube 2. It is slidably supported on the holder 3, and on the rear side of the grain discharge tube 2, there is a locking part 2 that can freely engage and detach the rear part of the grain bag 1.
2 is provided, and an opening body T consisting of a rotating arm IL intermediate arm 13 and an opening arm 15 is provided on the front side of the grain discharge tube 2,
By rotating the rotating arm 11 in the front and back direction of the bag holder 3, the opening arm 15 provided at the tip moves in the direction of the grain bag 1, engages with the front part of the bag 1, and then pulls out the front part forward. The arms 11, 13, and 15 are connected to each other in order to open the bag mouth 4 directly below the grain discharge tube 2, and the auxiliary opening body 21 and the above-mentioned engaging member When the locking part 22 is provided, the auxiliary opening body 21 intervenes from above to below inside the front part that is pulled out forward and is interlocked to lock the front part. The opening device for a grain bag is configured to be interlocked via an interlocking mechanism so as to engage and hold the inner side of the rear cloth only while the section is being pulled out. An embodiment of this invention will be described below. Opening body 7
A rotating arm 11 driven by a drive shaft 10 mounted on the machine frame 9, an intermediate arm 13 pivotally connected to the other end of the rotating arm 11 by a shaft 12, and the intermediate arm 13
An open claw arm 15 pivotally connected to the other end by a shaft 14
A coiled spring 16 is interposed between the rotating arm 11 and the intermediate arm 13 to urge the intermediate arm 13 in the direction of arrow A, thereby elastically urging the opening claw arm 15 in the direction of extension. and a stopper 17 fixed to the rotating arm 11.
The position of the intermediate arm 13 is set such that the intermediate arm 13 is brought into contact with the intermediate arm 13.

The opening claw arm 15 has an engaging claw 18 curved downward at the tip.
At the same time, a coiled spring 19 which biases the opening claw arm 15 against the intermediate arm 13 in the opposite direction of arrow A is interposed between both arms and brought into contact with a stopper 20 fixed to the intermediate arm 13. The opening claw arm 15 position is set accordingly. The auxiliary opening body 8 extends approximately perpendicularly from the middle portion of the rotating arm 11 of the opening body 7, and its tip is bent downward to form a bag opening locking portion 21.

In addition, this locking part 21 may be formed in a loop shape in order to widen the locking width with the bag opening 4. Reference numeral 22 designates a locking arm for the rear cloth 23 of the grain bag 1, which is pivotally connected integrally with a swinging arm 25 to a shaft 24 fixed to the machine frame 9.
3 and a relief part 27 whose tip is bent toward the front cloth 5 side.

A spring 28 is installed between one end of the swinging arm 25 and the machine frame 9.
is provided to constantly bias the locking arm 22, which is integrated with the swinging arm 25, in the direction of the arrow. Further, a pin 29 is fixed to the other end of the swing arm 25, and the pin 29 is connected to the opening 7.
The rotating arm 11 of the rod 32 is pivotally connected to the arm 30 extending on the opposite side from the drive shaft 10 by a pin 31, and is slidably fitted into a long hole 33 formed at the other end of the rod 32. be.
When the opening body 7 is at the opening starting position, the right end of the elongated hole 33 of the rod 32 restricts the pin 29 of the swinging arm 25 against the action of the spring 28, and the locking arm 22 is moved to the bag opening 4. The elongated hole 33 of the rod 32 is caused to escape upward, and when the opening body 7 is in operation, the long hole 33 of the rod 32 responds to the rotation of the arm 30.
The restriction of the pin 29 by the right end is released, and the locking arm 22 is set in a relationship in which it is rotated in the direction of the arrow by the action of the spring 28. Reference numeral 34 denotes a hanging device provided on both sides of the upper end of the bag 1, which is engaged with and supported by a pair of holders 3, 3 inclined in the bag discharge direction, and is attached to a fixing device (not shown) below the grain discharge tube 2. Thus, the bag 1 is held in place via the hanger 34.

Next, to describe its function, first, the bag holder 3,
The rice bag 1, which is engaged and supported by the handles 3 through the hangers 34, 34, is locked under the grain discharge pipe 2.

Next, when the drive shaft 10 is driven in the direction of arrow A to rotate the rotating arm 11 and the arm 30 within a certain range, the engaging claw 18 at the tip of the opening claw arm 15 of the opening body 7 is moved in front of the bag 1. Cloth 5
The front cloth 5 is sequentially pulled forward along the bag holder 3 to start opening the bag opening 4.

Further, when the drive shaft 10 is rotated, the intermediate arm 13 of the opening body 7 moves to the shaft 1 of the rotation arm 11 in response to the resistance of the bag opening 4.
4 against the coiled spring 16 to adjust the length of the opening body 7 while not exerting unnecessarily excessive pressure on the cloth portion of the bag opening 4 and tensioning the bag opening 4 excessively. At the same time, the locking part 21 of the auxiliary opening body 8, which extends substantially at right angles from the middle part of the intermediate arm 13 and whose tip is bent downward, intervenes in the bag opening 4 from above and holds the front cloth 4. The bag mouth 4 is opened smoothly while being held between the locking part 21 and the engaging claw 18 of the opening body 7. Further, when the arm 30 is rotated together with the opening body 7 and the rod 32 is moved in the direction of arrow C, the elongated hole 33
The swinging arm 25, which had been restricted by the right end of the bag via 29, is sequentially released from this restriction, and is rotated in the direction of the arrow opening along with the locking arm 22 by the action of the spring 28, so that the bag opening 4 The locking portion 26 of the locking arm 22 intervenes within the opening to urge the rear cloth 23 in the direction of the arrow opening to ensure opening. In this state, grains are fed into the grain bag 1 from the grain discharge tube 2, and when it is full, the fixing device of the hanger 34 is released and the grain bag 1 is taken out along the inclined holders 3, 3. .

Since the present invention has taken the above-mentioned technical means, the opening body has a multi-layered bag opening in which the front fabric of the bag opening part is engaged with from the front outer surface and pulled out to the front to open the opening body. It is easy to open, and the auxiliary opening body is inserted inside the bag mouth during opening by the opening body, and the front cloth part is held between the opening body and the auxiliary opening body to maintain a large opening. The opening of the bag opening is accurate and stable, and damage to the bag opening part can be reduced.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view;
FIG. 2 is a plan view of the main part. 1 is a grain bag, 2 is a grain ejector, 3 is a bag holder, 4 is a bag opening, 5 is a front cloth, 6 is a front outer surface, 7 is an opening, and 8 is an auxiliary opening.

Claims (1)

[Claims] 1. At the rear of the discharge tube 2, the grain bag 1 is attached to the bag holder 3 provided on both the left and right sides of the grain discharge tube 2 configured to discharge grains, by means of hanging tools 34 provided on both left and right sides of the bag opening 4. 3, and on the rear side of the grain discharge tube 2, there is a locking part 22 that can freely engage and detach the rear cloth of the grain bag 1.
is provided, and an opening body 7 consisting of a rotating arm 11, an intermediate arm 13, and an opening arm 15 is provided on the front side of the grain discharge tube 2,
As the rotating arm 11 rotates in the front and back direction of the bag holder 3, the opening arm 15 provided at the tip moves in the direction of the grain bag 1, engages with the front cloth of the bag 1, and then pulls out the front cloth forward. The arms 11, 13, and 15 are connected to each other in order to open the bag mouth 4 directly below the grain discharge tube 2, and the auxiliary opening body 21 and the above-mentioned engaging member When the locking part 22 is provided, the auxiliary opening body 21 is interlocked with the front cloth so that it intervenes from above to below inside the front part that is pulled forward and locks the front cloth. A grain bag opening device configured to be interlocked via an interlocking mechanism so as to engage and hold the inner side of the rear cloth only while the cloth is being pulled out.