JPH11292044A - Flexible container bag opener - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a bag opener which automatically and mechanically opens a flexible container bag. SOLUTION: An annulus hood 3 is provided surrounding a flexible container bag 2 at a bag opening position for the flexible container bag 2, a fetching opening 4 for the flexible container bag 2 and an open/close door 4 for opening and closing the fetching opening 4 are provided on the annulus hood 3, a keeping stand 6 is provided at the inside of the annulus hood 3, and a knife 7 is provided movable by a driving means 8 on the keeping stand 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a bag opening apparatus for opening a flexible container bag containing a raw material by cutting and charging the raw material into a hopper or the like.

[0002]

2. Description of the Related Art Conventionally, a bag is opened by means of manually cutting a flexible container bag with a scythe and discharging the material inside the bag, or a cross-shaped center provided on a hopper, which is inclined downward from the center to the outside. A flexible container bag is hung over an edged knife by an electric hoist, the flexible container bag is applied to the knife by its own weight, cut, and the raw material is discharged. All of these operations are dust exposure operations and are not good for occupational health.

[0003] Conventionally, as a bag-opening device, a flexible container bag is put into a sealed container from above,
After cutting the vicinity of the bottom of the side of the flexible container bag in the circumferential direction on the depository with a drive device with a blade, open the depository downward and discharge the raw material to the lower part, or in a sealed container. Deposit the flexible container bag in the depository, release the hanging tools, open the depository on the blade with a downward slope from the center of the cross provided at the bottom, open the depository, and drop the flexible container by its own weight There are devices that cut the bag and discharge the raw materials to the lower part.However, these devices are suitable for places where height can not be taken because the flexible container bag is taken in and out of the sealed container from the top. There was no equipment.

[0004]

SUMMARY OF THE INVENTION It is, therefore, an object of the present invention to solve the above-mentioned drawbacks of the prior art and to provide a bag opening apparatus which enables mechanized and automatic opening of a flexible container bag.

[0005]

According to the present invention, in the flexible container bag opening device (1) according to the first aspect, the flexible container bag (2) is surrounded at the open position of the flexible container bag (2). In this state, a collection hood (3) is provided, and the collection hood (3) is provided with an opening (4) for the flexible container bag (2) and an opening / closing door (5) for opening and closing the opening (4). A scoop-shaped depository (6) is installed inside the collection hood (3), and a knife (7) is provided on the depository (6) so as to be movable by a driving means (8). In the flexible container bag opening device (1) of the above, in addition to the above-mentioned configuration, a hitting bar (9) is provided on the side of the flexible container bag (2) placed on the depository (6) by the driving means (10). And it is provided freely backward movement.

[0006] In a state where the flexible container bag (2) contains the raw material, it is conveyed from the access port (4) to the inside of the collection hood (3) by an electric hoist or the like, and placed on the depository (6). . In this state, the door (5) is
Close the doorway (4). After this, the driving means (8)
Moves the blade (7) to cut the flexible container bag (2) on the depository (6), and discharges the raw material to a lower hopper or the like inside the collection hood (3). Thereafter, the driving means 10 reciprocates the hitting bar (9) and hits the side surface of the flexible container bag (2) after discharging the raw material to apply vibration, thereby reliably discharging the raw material remaining inside. Let it.

[0007]

1, 2 and 3 show a preferred embodiment of a flexible container bag opening apparatus 1 according to the present invention. Flexible container bag opening device 1
Is provided with a collection hood 3 at the open position of the flexible container bag 2. The collection hood 3 is attached to the hood frame 11 provided at the bag opening position so as to close the front, back, both side surfaces and upper surface and surround the bag opening position. 2 has a doorway 4 for opening and closing, for example, a double-opening door 5 for opening and closing the doorway 4. The opening / closing door 5 is, for example, of an automatic type, and can be automatically opened and closed by a pair of automatic door air cylinders 12 attached to an upper portion of the hood frame 11.

Incidentally, the flexible container bag 2
With the raw materials accommodated, wire 1 of electric hoist 13
The hook 6 is hooked on a hook 14 at the lower end and is moved along a rail 15 while being suspended by a wire 16, and is carried from the access port 4 into the collection hood 3. For this reason, the ceiling (upper surface) portion of the collection hood 3 forms a slit 17 for guiding the wire 16 of the electric hoist 13. The upper limit height of the hook 14 and the end position of the movement of the electric hoist 13 are respectively set to the hoisting detector 18,
It is detected by the detector 19 inside the collection hood and the detector 20 outside the collection hood, and becomes an input signal of the controller 21 described later.

The flexible container bag opening apparatus 1 includes a storage tray 6 on which the flexible container bag 2 is placed, a cutting tool 7 for cutting the flexible container bag 2, and raw materials inside the collection hood 3. After discharging, one or more tapping bars 9 are provided to tap the flexible container bag 2 and discharge the residual raw material.

The deposit table 6 is provided with a hopper 23
In the upper part of the container, as an example, in order to drop the raw material, it is configured as a saw-like shape. When the flexible container bag 2 is placed on the depository 6, the deposit detector 28 optically detects the state and sends a signal to a controller 21 described later.

The cutter 7 protrudes from the upper surface of the cutter frame 24 at a position between a plurality of the deposit tables 6 below the saw-shaped deposit table 6 and at a position between the plurality of the deposit tables 6 which is movable in the direction of the gap of the deposit table 6. One or two or more are provided. The blade frame 24 is provided so as to be movable in a direction of a gap of the depository 6 by wheels 26 with respect to a guide rail 25 provided on the machine base 22, and is an air cylinder fixed on the machine base 22. Are mounted so as to be capable of reciprocating movement by the driving means 8 of FIG. The completion state of the cutting operation of the blade 7 is detected by a cutting detector 27 provided near the driving unit 8 and becomes an input signal of a controller 21 described later.

The hitting bar 9 is attached to the hood frame 11 on the side of the flexible container bag 2 placed on the depository 6 so as to be able to reciprocate by a vertical support shaft 29, for example. It is mounted so as to be able to reciprocate by driving means 10 such as an air cylinder mounted on the frame 11.

Next, FIG. 4 shows one connected to the controller 21. The controller 21 is connected on the input side to the hoisting detector 18, the detector inside the collection hood 19, the detector outside the collection hood 20, the cutting detector 27, the depositing detector 28, and the automatic operation switch 34. On the output side, drive units 8 and 10, drive units 30 and 3 for automatic door air cylinder 12 and electric hoist 13
1, 32 and 33 are connected. Controller 21
Performs necessary operations sequentially based on a previously input sequence.

An operator hooks the flexible container bag 2 containing the raw materials on the hook 14 of the electric hoist 13 in front of the flexible container bag opening apparatus 1, and then turns on the automatic operation switch 34. . Here, the controller 21 starts the electric hoist 13 by the drive unit 33, winds up the wire 16, raises the flexible container bag 2, and detects the end of the hoisting stroke by the hoisting detector 18. Flexible container bag 2 access 4
From inside the collection hood 3
The traveling is stopped by the signal from 9 and at the same time as the lowering process is started, the driving unit 32 drives the automatic door air cylinder 12, and the door 4 is closed by the door 5.

When the flexible container bag 2 is put on the depository 6 by the lowering process of the electric hoist 13,
Since the depositing detector 28 generates an output signal, the controller 21 ends the lowering process of the electric hoist 13. Thereafter, the controller 21 drives the driving means 8 by the driving unit 30 to move the blade 7 from one position to the other direction, so that the bottom surface of the flexible container bag 2 on the depository 6 is moved by the blade 7. When the cutting is completed by the signal from the cutting detector 27, the driving unit 10 is driven by the drive unit 31 to give the reciprocating rotary motion to the hitting bar 9, thereby making the hitting bar 9 flexible. Container bag 2
Hit several times against the side of the slab and pay out all remaining material inside.

After finishing the several strokes, the controller 21 uses the electric hoist 13 to control the wire 1.
6, the empty flexible container bag 2 is raised, and at the same time, the drive unit 32 drives the automatic door air cylinder 12 to open the opening / closing door 5 and perform the winding by the signal from the winding detector 18. After the completion, the vehicle enters the traveling process, moves the empty flexible container bag 2 out of the collection hood 3, receives a signal from the outside hood detector 20, and ends traveling. Complete automatic operation. The inside of the collection hood 3 is connected to an external bag filter (not shown) so that dust is collected.

[0017]

According to the present invention, there is no need for an operator to open a bag, thereby improving the occupational hygiene environment of the operator. Also, since the flexible container bag is not taken in and out of the apparatus from the upper part, a place where the height cannot be obtained. However, the flexible container bag opening apparatus of the present invention can be installed. Further, since the flexible container bag is forcibly discharged by the hitting bar after the discharge of the raw material, there is no remaining discharge of the raw material, and the discharge operation can be performed reliably.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a flexible container bag opening apparatus of the present invention.

FIG. 2 is a cross-sectional view of the flexible container bag opening apparatus of the present invention taken along line AA in FIG.

FIG. 3 is a sectional view of the flexible container bag opening apparatus of the present invention, taken along the line BB in FIG. 1;

FIG. 4 is a block diagram of a control device of the flexible container bag opening device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flexible container bag opening apparatus 2 Flexible container bag 3 Consolidation hood 4 Access door 5 Automatic opening and closing door 6 Deposit 7 Cutting tool 8 Driving means 9 Hitting bar 10 Driving means 11 Hood framework 12 Air cylinder for automatic door 13 Electric hoist DESCRIPTION OF SYMBOLS 14 Hook 15 Rail 16 Wire 17 Slit 18 Hoisting detector 19 Inside hood detector 20 Outside hood detector 21 Controller 22 Machine stand 23 Hopper 24 Blade frame 25 Guide rail 26 Wheel 27 Cutting detector 28 Deposit detection Container 29 support shaft 30 drive unit 31 drive unit 32 drive unit 33 drive unit 34 automatic operation switch

Claims (2)

[Claims] 1. A collection hood (3) is provided at an open position of the flexible container bag (2) so as to surround the flexible container bag (2), and the collection hood (3) is provided.
And a door (5) for opening and closing the flexible container bag (2) and a door (5) for opening and closing the door (4).
A depository (6) is set up, and a knife (7) is placed on the depository (6).
The flexible container bag opening device (1), characterized in that the flexible container bag opening device (1) is provided so as to be movable by a driving means (8). 2. A collection hood (3) is provided at the open position of the flexible container bag (2) so as to surround the flexible container bag (2), and the collection hood (3) is provided.
And a door (5) for opening and closing the flexible container bag (2) and a door (5) for opening and closing the door (4).
A blade-shaped depository (6) is installed, and a knife (7) is provided on the depository (6) so as to be movable by a driving means (8), and a flexible container bag (2) placed on the depository (6). (1) A flexible container bag opening device (1), characterized in that a hitting bar (9) is reciprocally movable by a driving means (10) on the side of (1).