JP2853494B2 - Flexible container bag mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for automatically mounting a flexible container bag for filling a granular material or the like on a filling chute.

[0002]

2. Description of the Related Art In the past, in the bagging process of powders and granules, when the powders and granules are filled in a flexible container bag (hereinafter abbreviated as "FIBC bag"), the work is often performed manually. For example, when filling the granular material, the work of hanging the string attached to the shoulder of the flexible container bag on a filling hopper or the like and attaching the bag opening of the flexible container bag to the chute of the hopper has been performed manually. .
In other words, in such a bag filling step, although the filling amount of the granular material can be automatically controlled, the mounting of the flexible container bag has not been automated yet, and the working efficiency has been greatly improved. Did not.

To solve such a problem, Japanese Patent Laid-Open No.
JP-A-157134 proposes a method of mounting a flexible container bag on a filling chute using a ferromagnetic material at the bag opening of the flexible container bag and using an electromagnet provided below the filling chute.

[0004]

However, in such a mounting method, it is necessary to place the flexible container bag on a pallet, convey it, and arrange it directly below the filling chute. Was not acceptable. SUMMARY OF THE INVENTION The present invention has been made in view of such problems of the related art, and an object of the present invention is to automatically mount a flexible container bag on a filling chute and to ease positioning of the flexible container bag with respect to the filling chute. An object of the present invention is to provide a flexible container automatic mounting device that can be used.

[0005]

The inventor of the present invention has made intensive studies to achieve the above-mentioned object, and as a result, has found that the above-mentioned object can be achieved by using a specific bag take-out means and an arm member, thereby completing the present invention. Reached.

Accordingly, the automatic FIBC bag mounting apparatus of the present invention is an apparatus for automatically mounting a FIBC bag on a filling chute, comprising an electromagnetic holder for lifting a bag, and taking out a bag capable of moving the bag up and down and horizontally. Means, an arm member having a hook at its tip end for receiving the bag from the take-out means, a lateral drive device for rotating or horizontally moving the arm member, and a vertical drive device for raising or lowering the arm member. It is characterized by having.

[0007]

In the present invention, an annular member made of a ferromagnetic material is attached to a bag opening of a flexible container bag, and the bags are stacked at a predetermined position. This bag is magnetically attached by the electromagnetic holder of the bag removing device, and is lifted to a predetermined height. At the time of this lifting, even if the bag mouth of the bag is slightly displaced from the predetermined position, the bag can be lifted if the size of the electromagnetic holder is larger than the size of the annular member, and the bag is arranged. The positioning of the position to be performed can be eased.

[0008] Next, the suspended bag is appropriately moved horizontally to stand by at a predetermined position. The waiting bag is received by the arm member having the hook at the tip. At this time, even if the position where the bag is made to stand by is slightly shifted, the bag is positioned almost at the center of the hook by the hook, and the deviation is adjusted.

The bag received by the arm member via the hook is moved to a position directly below the filling chute by rotating the arm member. In this way, since it is moved directly below the filling chute by rotation, positioning with the filling chute can be performed accurately. Next, the arm member is raised at this position, and the bag is mounted on the filling chute. As described above, in the present invention, even if the position where the bags are stacked first is slightly different from the predetermined position, both the bag removing means and the arm member
The positioning of the bag with respect to the filling chute can be made accurately.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a side view showing one embodiment of a flexible container bag mounting device of the present invention. Referring to FIG. 1, a flexible container bag mounting apparatus 1 according to the present invention includes a bag removing means 10 and a boom 20. The bag removing means 10 includes an electromagnetic holder 11, a hoist 13,
A trolley 15 and a cable cylinder 17 are provided.
Further, the boom 20 includes an arm 23 having a hook 21 at a distal end portion, a rotary actuator 25 as an example of a lateral driving device, and an air cylinder 27 as an example of a vertical driving device.

Next, an example of a method for mounting the flexible container 2 using the bag mounting apparatus 1 will be described. First, the flexible container bag 2 provided with the steel ring 2a at the bag mouth, and other similar flexible container bags are placed at predetermined positions in a folded state such that the ring 2a is arranged on the upper surface.
Here, the predetermined position is preferably directly below the position where the electromagnetic holder 11 is lowered, but slight deviation does not matter.

Next, the electromagnetic holder 11 is attached to the flexible container bag 2.
And is excited above the ring 2a. Then, the electromagnetic holder 11 is lowered via the hoist 13 to magnetically attach the ring 2a, and then the electromagnetic holder 11 is raised to a predetermined height. When this rise, the diameter of the electromagnetic holder 11 is
If the diameter is larger than the outer diameter of a, the electromagnetic holder 11 and the ring 2a
The ring 2a can be lifted even if it is misaligned and magnetically attached. That is, even if the holder 11 and the ring 2a are misaligned, and a part of the ring 2a is magnetically attached and is inclined, if the magnetic force of the holder 11 is appropriate, the ring 2a Is rotated half a turn or the like, and the ring 2a is horizontally magnetized. Therefore, the diameter of the electromagnetic holder 11 is
It is preferable to make the diameter larger than the diameter of a.

Next, the bag 2 thus lifted to a predetermined height is connected to the cable cylinder 17 via the trolley 15.
As a result, the arm 23 is moved in the direction of the illustrated arrow A by a predetermined distance and stopped, and then the arm 23 is rotated in the direction of the illustrated arrow B to hold the ring 2a near the center of the hook 21 as shown in FIG. Then, the bag 2 is received by the arm 23. Here, the predetermined height is preferably substantially the same as the height of the hook 21 attached to the arm 23.

The predetermined distance is preferably a distance such that the ring 2a is located near the center of the hook 21. However, as shown in FIG. Even when the hook 21 advances in the direction of arrow B, the neck of the bag 2 adjacent to the ring 2a is moved to the vicinity of the center along the inner peripheral portion 21a of the hook 21 and the displacement is corrected. Further, as shown in FIG. 3 (b), an opening / closing member, for example, a mini band or a handling chuck 21b operated by compressed air is provided on the hook 21 so that the hook 21 can be opened and closed freely.
If it is made to move in the direction of the arrow B while approaching and closing, it is possible to correct the deviation even when the deviation is larger than the above case.

As described above, after the ring 2a (bag 2) is received by the arm 23, the electromagnetic holder 11 is demagnetized to separate the electromagnetic holder 11 and the ring 2a, and the ring 2a (bag 2) is Hang on. At this time, if the diameter of the ring 2a is slightly larger than the diameter of the hook 21, the neck of the bag 2 is slightly squeezed.
a is to be hooked on the hook 21. Next, the arm 23 is moved by the rotary
Is further rotated in the direction of
(See FIGS. 2 and 4). If the rotation angle of the rotary actuator 32 is controlled to be constant, the positioning with the filling chute can be performed accurately.

Then, as shown in FIG. 4, the arm 23 is raised by an air cylinder 27 (not shown), the bag 2 is fitted into the filling chute 32, and then the air cylinder 34 is operated to be gripped by a clamp. The bag 2 is mounted on the filling chute 32. When the arm 23 is raised, it is preferable to keep the hook 21 substantially horizontal in order to improve the mounting accuracy (positioning accuracy). Further, the arm 23 can be extended and contracted to prevent the displacement caused by the rise more precisely. However, when the arm 23 rises by 15 to 20 cm, the displacement is about 13 mm, and the diameter of the filling chute 32 is changed to the diameter of the hook 21. It is acceptable if the length is made slightly larger and the length of the arm 23 is made slightly longer.

The present invention has been described with reference to the embodiments.
The present invention is not limited to this, and various modifications can be made within the scope of the present invention. For example, the bag removing means 10 can be configured to be movable not only in the direction of arrow A but also in the direction perpendicular to the drawing. Further, the planar shape of the hook 21 may be not only a U-shape but also a Y-shape or the like. Further, the shape of the ring 2a may be not only annular but also polygonal.

[0018]

As described above, according to the present invention,
Since the specific bag take-out means and the arm member are used, it is possible to provide an automatic FIBC bag mounting apparatus which can automatically mount the FIBC bag on the filling chute and ease the positioning of the FIBC bag with respect to the filling chute. Therefore, the efficiency of the bagging operation of the granular material can be improved, the number of workers can be reduced, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of a flexible container mounting device of the present invention.

FIG. 2 is an explanatory plan view showing a step of arranging a flexible container bag below a filling chute.

FIG. 3 is an explanatory plan view showing how a positioning error is corrected by a hook.

FIG. 4 is an explanatory side view showing a step of attaching a flexible container bag to a filling chute.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flexible container mounting device 2 Flexible container bag 2a Ring 10 Bag removal means 11 Electromagnetic holder 20 Boom 21 Hook 23 Arm 25 Rotary actuator 27 Air cylinder 30 Hopper

Claims (1)

(57) [Claims] 1. A device for automatically mounting a flexible container bag to a filling chute, comprising: an electromagnetic holder for lifting a bag; An automatic flexible container bag comprising: an arm member for receiving a bag from a take-out means; a horizontal drive device for rotating or horizontally moving the arm member; and a vertical drive device for raising or lowering the arm member. Mounting device.