JP6533731B2 - Flexible container tear bag system and method - Google Patents

Description

The present invention relates to a flexible container tear-off system (and method) used for taking out contents from a flexible container (also referred to as a flexible container bag) which is a bag-like packaging material for storage and transportation.
In the present specification, the term "flexible container" generally used as an abbreviation will be used hereinafter in relation to the term "flexible container".

  The flexible container is suitable for storing and transporting powdery or granular materials, and storage is performed from the upper opening, and the opening can be closed by the gusset portion. In addition, the flexible container is equipped with a strong looped suspension belt, which is suitable for lifting with a crane or the like.

The following is an example of a flexible container tear-off apparatus for taking out the contents from the flexible container.
In the flexible container tear-off device (opening device) described in Patent Document 1, a knife body with an upper blade is fixed in a reverse V shape in the load receiving hopper, and the flexible container is rapidly lowered thereon to cleave the bottom of the flexible container. Let

  The flexible container tear-off device (opening device) described in Patent Document 2 installs a flexible container in the upper part of the cargo receiving hopper, and mounts a rotatable rotary body having a cutting blade attached at one place around the flexible container. Cutting the bottom of the flexible container by rotating the rotating body and opening the flexible container.

Japanese Utility Model Publication No. 04-132017 JP, 2009-096545, A

By the way, removed materials such as removed soil (the soil removed by decontamination or waste contaminated with radioactive materials) generated with decontamination are stored in the container by a fixed volume, and temporary storage place such as temporary storage Stored in
When such removed material is carried from the temporary storage location to an intermediate storage facility for storage, it is necessary to break the container and take out the stored material for sorting and volume reduction processing. For this reason, a bag-breaking device is required.

However, the bag-breaking apparatus described in Patent Document 1 has a problem that it is inferior in the reliability of the bag-breaking because it is only by the weight of the flexible container.
Also, as shown in FIGS. 11 (A) and 11 (B), a front view and a bottom view of a general flexible container, two suspension belts are sewn on the flexible container, and two belts are provided on the bottom of the flexible container. Crosses and becomes double. This belt intersection is double-stitched with a thick belt and can not be easily cut.
Therefore, in the case of an apparatus for cutting from the center of the bottom as in the bag-breaking device described in Patent Document 1, or for cutting in the form crossing the center of the bottom, the belt intersection must be cut. This may make it difficult to reliably cut.

Moreover, since the cutter (cutting blade) is rotated in the circumferential direction on the bottom surface of the flexible container to cut in a ring shape or a C shape, the belt crossing portion can be avoided at the bottom of the container. There is an advantage.
However, in the method of rotating the cutter, even if the cutter is rotated, if the bag of the flexible container escapes or if the bag of the flexible container has wrinkles etc., the blade does not go inside, resulting in breakage of the flexible container. There is a problem that it can not be bagged.
Moreover, the removal thing stored in the flexible container includes a hard thing such as a concrete piece or a metal piece. Even in the case of removed soil, it may be compacted in the container and extremely hard because it is packed in the soil at the place where it was collected and it is packed in the container and left for a long time. In such a case, it is considered that reliable cutting becomes difficult with the method of rotating the cutter.

  In view of such a situation, the present invention is capable of more reliably breaking the container of the flexible container, and further suitable for crushing the flexible container containing the removal material such as removed soil generated along with the decontamination. It is an object to provide a bag system (and method).

  In order to solve the above problems, the flexible container tear bag system according to the present invention comprises a fixed floor plate on which the flexible container is placed, and an opening formed in the fixed floor plate so as to include a central bottom portion of the flexible container. And a laser head which relatively moves along the edge of the opening while irradiating the laser in a portion near the edge of the opening in the flexible container, and cutting the bottom of the flexible container. Ru.

The laser head may be disposed below the fixed floor slab to irradiate the laser upward, and further, the laser may be irradiated obliquely upward from the radially outer side to the inner side of the opening. It is good also as composition.
Alternatively, the laser head is disposed above the fixed slab so that the opening is set to a size that the bottom of the flexible container is fitted and locked. The laser may be irradiated obliquely downward from the radially outer side to the inner side.

  The flexible container rupture bag system according to the present invention is disposed at the opening to form a floor surface together with the fixed floor slab at the time of cutting by the laser, and moves in a direction away from the flexible container after cutting, It is preferable to further include a movable floor plate that discharges through the opening. When the laser head is disposed below the fixed floor slab, the laser passes between the inner circumferential surface of the opening and the outer circumferential surface of the movable floor slab during floor formation. Form a gap (slit).

According to the present invention, by using the laser head and cutting the bottom of the flexible container by the laser while avoiding the belt intersection, the reliability of the bag can be improved. In particular, the laser can be broken regardless of the contents of the container, and the maintenance as in the case of using a cutter becomes unnecessary.
Also, by placing the flexible container on the fixed floor plate, the flexible container can be positioned. Even if the fixed deck has an opening, at least at the edge of the opening, the flexible container can be positioned. Therefore, it is relatively easy to determine the focal point (spot) of the laser by moving the laser along the edge of the opening while irradiating the laser aiming at a portion near the edge of the opening in the flexible container This makes it possible to reliably break the bag with a laser.

  Furthermore, by using a movable floor plate in combination, positioning of the flexible container at the time of cutting by the laser becomes more reliable, and discharge of the container of the flexible container is started during the cutting, and it is suppressed that the shape of the flexible container changes. it can.

  Therefore, by using the flexible container rupture bag system according to the present invention, it is possible to reliably tear out the flexible container containing the removed material generated along with the decontamination, and it is necessary to process a large amount of flexible containers. The handling of radioactive materials can basically improve the efficiency of operations performed in an unmanned state.

Front view of a flexible container tear bag system showing a first embodiment of the present invention Bottom view of same container above Process chart of flexible container open bag system same as above Front view of a flexible container tear-off system showing a second embodiment of the present invention Front view of a flexible container tear-off system showing a third embodiment of the present invention Principal part enlarged view of the third embodiment Front view of a flexible container tear-off system showing a fourth embodiment of the present invention Bottom view of the fourth embodiment Front view of a flexible container tear-off system showing a fifth embodiment of the present invention Front view of a flexible container tear-off system showing a sixth embodiment of the present invention Front view and bottom view of a typical flexible container

Hereinafter, embodiments of the present invention will be described in detail.
1 to 3 show a first embodiment of the flexible container tear bag system according to the present invention, FIG. 1 is a front view, FIG. 2 is a bottom view, and FIG. 3 is a process diagram.

  The flexible container 1 in the present embodiment is cylindrical, and is stuffed with removed material such as removed soil generated along with decontamination, and is carried from a temporary storage place such as a temporary storage place to an intermediate storage facility by a vehicle. In the intermediate storage facility, the flexible container 1 is broken to take out the contents, and the broken flexible container 1 (bag) is collected separately.

  The flexible container open bag system includes a fixed floor plate 10 on which the flexible container 1 is mounted.

  The flexible container 1 is suspended on the hook 3 at the lower end thereof by a wire 2 of an electric hoist (not shown) movable along a moving rail provided on the ceiling of the bag-breaking facility in a state where the container is accommodated. It is lowered and moved. Then, when the upper position of the fixed floor plate 10 is reached, it is lowered together with the wire 2 and placed on the upper central portion of the fixed floor plate 10. In the placed state, in order to recover the flexible container 1 (bag) after the bag is broken, the suspension belt is kept in a tense state so that the suspension belt does not come off from the hook 3.

  A circular opening 11 is formed in the central portion of the fixed floor plate 10 so as to include the central portion of the bottom of the flexible container 1. That is, the opening 11 is formed to be larger than the bottom center portion (belt crossing portion) of the flexible container 1 so that the belt crossing portion is accommodated in the opening 11. The opening 11 is also formed smaller than the outer diameter of the flexible container 1 so that there is no hindrance to mounting and holding the flexible container 1.

  A circular movable floor plate 12 is disposed in the opening 11 of the fixed floor plate 10. Here, a gap (slit) 13 having a width of about 10 mm for passing a laser is annularly formed between the inner peripheral surface of the opening 11 of the fixed floor plate 10 and the outer peripheral surface of the movable floor plate 12.

  The movable floor plate 12 can be moved up and down by a drive mechanism 14 such as a hydraulic cylinder, and is positioned so as to be substantially flush with the fixed floor plate 10 to form a floor surface with the fixed floor plate 10, and lower than the fixed floor plate 10. It can move to a position (dotted line position in the drawing) to be retracted.

A laser head 15 is disposed below the gap 13 between the fixed floor plate 10 and the movable floor plate 12 so as to be movable along the annular gap 13.
The laser head 15 irradiates a laser upward, and the laser passes through the gap 13 and is irradiated to the bottom of the flexible container 1. The laser head 15 also moves in the horizontal plane along the gap 13 while emitting a laser.
The laser head 15 is connected to a laser source (not shown) via an optical system having a flexible optical fiber or a rotating mirror.

  The moving mechanism of the laser head 15 includes a rail 16 annularly disposed on the lower surface of the fixed floor plate 10 so as to surround the opening 11, and a traveling body 17 capable of traveling along the rail 16; The traveling body 17 supports the laser head 15 via the position adjustment mechanism 18. The movement of the carriage 17 along the rails 16 allows the laser head 15 to move along the gap 13.

The position adjusting mechanism 18 can change the mounting position of the laser head 15 to the traveling body 17 in the vertical direction, so that the focal position of the laser head 15 having a constant focal length coincides with the bottom of the flexible container 1. It can be fine-tuned. Therefore, the position adjustment mechanism 18 for adjusting the attachment position functions as a focus position adjustment mechanism.
The laser head 15 has a focusing lens for focusing a laser in its interior to focus the laser. This is to increase the energy density and perform reliable cutting. The focus lens is selected such that the focal distance between the focus lens and the convergent position (spot) and the bottom of the flexible disk 1 is a spot, and the mounting position in the vertical direction is adjusted.

Next, the operation of the flexible container teardown system according to the present embodiment will be described with reference to the process chart of FIG.
In addition, since the present system handles radioactive substances, it is basically operated in an unmanned state and in a state where it can be remotely controlled from the outside, and the operating state is monitored by a monitoring camera.

  As shown in FIG. 3 (A), the flexible container 1 is placed on the center of the upper surface of the fixed floor plate 10 by being suspended by the hook 3 at the end of the wire 2. At this time, the movable floor plate 12 is moving upward and is flush with the fixed floor plate 10 in the opening 11 of the fixed floor plate 10, and the flexible container 1 is made up of the fixed floor plate 10 and the movable floor plate 12. It is placed on top. In this state, the bottom of the flexible container 1 is pressed against the fixed floor plate 10 and the movable floor plate 12 by its own weight, and becomes flat.

From this mounting state, the laser head 15 is moved along the gap 13 while the bottom of the container 1 is irradiated with the laser by the laser head 15 through the gap 13 between the fixed floor plate 10 and the movable floor plate 12. . As a result, the bottom of the flexible container 1 is cut annularly. As a result, a hole is formed at the bottom of the flexible container 1 and the stored material can be discharged.
At this time, the laser head 15 may be rotated by 180 ° or more and less than 360 °. More specifically, it is rotated leaving 20 to 30 °. As a result, the bottom of the flexible container 1 is cut into a C-shape, which makes it possible to discharge the contents, but it is possible to prevent the bag itself of the flexible container 1 from being cut off and mixed and discharged into the content.

After cutting with the laser head 15, the movable floor plate 12 is moved downward as shown in FIG. 3 (B). Thereby, the opening 11 of the fixed floor plate 10 is opened, and the content of the flexible container 1 is dropped through the opening 11 and discharged.
A hopper (not shown) is disposed below the fixed floor plate 10 and the movable floor plate 12, and the contents discharged from the flexible container 1 are collected in the hopper.

  After the contents are discharged, as shown in FIG. 3 (C), only the bag of the flexible container 1 (the above-mentioned uncut portion is left) which is torn by the hook 3 at the tip of the wire 2 is obtained. 2. Pull up and move 2 and collect the torn flexible container 1 at an appropriate position. This can be used for incineration as combustibles.

  Incidentally, as shown in FIG. 1, in order to keep the placement state of the flexible container 1 on the fixed floor plate 10 more constant, a pressing mechanism 20 may be provided to press the flexible container 1 from both sides. In the case of laser cutting, no external force is applied to the flexible container by cutting, so even if the pressing mechanism 20 is provided, it is sufficient to guide the flexible container 1 in order to make the position of the flexible container 1 constant. Alternatively, the holding mechanism 20 may be used to push in the contents after cutting so as to push out the contents. In addition, when the lower side (hopper side) of the fixed bed plate 10 is under negative pressure, the effect of the atmospheric pressure further enhances the extruding effect of the contents.

The flexible container rupture bag system according to the present embodiment includes a fixed floor plate 10 on which the flexible container 1 is placed, an opening 11 formed in the fixed floor plate 10 so as to include a bottom surface central portion of the flexible container 1, and the flexible container 1. And a laser head 15 for relatively moving along the edge of the opening 11 and cutting the bottom of the container 1 while irradiating the laser to a portion near the edge (inner side of the edge) of the opening 11 Be done.
According to this, by cutting the bottom portion of the flexible container 1 by the laser while avoiding the belt crossing portion, it is possible to improve the reliability of the bag breakage. In particular, the laser can be broken regardless of the contents of the container 1, and the maintenance as in the case of using a cutter becomes unnecessary.

  Moreover, in the flexible container tear bag system which concerns on this embodiment, the laser head 15 is arrange | positioned under the fixed floor plate 10, and irradiates a laser upward. As a result, it becomes possible to irradiate the laser at the shortest distance to the bottom of the flexible container 1 and it becomes possible to perform reliable cutting.

Further, the flexible container tear-off system according to the present embodiment is disposed at the opening 11 of the fixed floor plate 10 to form a floor together with the fixed floor plate 10 at the time of cutting by laser, and move in a direction away from the flexible container 1 after cutting. The movable floor plate 12 further includes a movable floor plate 12 for discharging the contents of the flexible container 1 through the opening 11. The movable floor plate 12 includes the inner peripheral surface of the opening 11 and the outer periphery of the movable floor plate 12. Between the surfaces, a gap 13 is formed through which the laser passes.
According to this, by positioning the flexible container 1 by the fixed floor plate 10 and the movable floor plate 12, the positioning of the flexible container 1 at the time of cutting by the laser becomes more reliable. Therefore, by moving the laser along the gap 13 between the fixed floor plate 10 and the movable floor plate 12, it becomes easy to determine the focal point (spot) of the laser, and the energy of the laser can be reduced. Since it is easy to focus on 1, it is possible to reliably break the bag with a laser.
In addition, by positioning the flexible container 1 with the fixed floor plate 10 and the movable floor plate 12, discharge of the contents of the flexible container 1 can be started in the middle of cutting and it can be suppressed that the shape of the flexible container 1 changes. Cutting performance can be maintained.
Further, since the bottom of the flexible container 1 is in close contact with the fixed floor plate 10 and the movable floor plate 12, even if the bottom of the flexible container 1 is burned by the laser, it does not spread out.

However, it is also possible to carry out without providing the movable floor plate 12. In this case, positioning of the flexible container 1 is performed only with the fixed floor slab 10 having the opening 11. However, even if the fixed floor slab 10 has the opening, the flexible container 1 is at least at the edge of the opening 11. Positioning is possible. Therefore, by moving the laser along the edge of the opening 11 (at the edge), it is relatively easy to determine the focal point (spot) of the laser, and reliable tearing by the laser becomes possible. .
Further, since the flexible container 1 is in close contact with the fixed floor plate 10 at the edge of the opening 11, even if the bottom of the flexible container 1 is burned by the laser, it does not spread any more.

  Moreover, in the flexible container teardown system according to the present embodiment, the laser head 15 cuts the bottom of the flexible container 1 in a C-shape. As a result, the bag itself of the flexible container 1 can be prevented from being cut off and discharged into the container, and all the broken flexible containers 1 can be incinerated as combustibles.

In addition, the flexible container tear bag system according to the present embodiment is configured to further include a focus position adjustment mechanism (position adjustment mechanism 18) capable of adjusting the focal position (spot) of the laser. This enables fine adjustment of the focal position.
For example, some of the flexible containers brought into the intermediate storage facility are damaged in the bags of the flexible containers in the temporary storage area or the like, so some of them are carried into another flexible container as they are. The flexible container brought in this way has a double bag. When tearing such a double bag flexible container, adjustment of the focus position by the position adjustment mechanism 18 is effective.

  FIG. 4 shows a second embodiment of the flexible container tear bag system according to the present invention. In the second embodiment, elements corresponding to those of the first embodiment are denoted by the same reference numerals to simplify the description.

In the second embodiment, the laser head 15 is disposed below the fixed floor plate 10 when the laser is irradiated near the edge (inside the edge) of the opening 11 in the flexible container 1 and the radial direction of the opening 11 The laser is emitted obliquely upward from the outside toward the inside.
In this case, the inner peripheral surface of the opening 11 of the fixed floor slab 10 is a tapered surface with a narrow end toward the top, and the outer peripheral surface of the movable floor slab 12 is a tapered surface with a taper toward the upper side.

  According to the second embodiment, the laser head 15 is disposed below the fixed bed plate 10 and irradiates the laser obliquely upward from the radially outer side to the inner side of the opening 11, so that the laser is produced. The head 15 can be arranged to be retracted from immediately below the opening 11 through which the contents of the flexible container 1 are discharged. As a result, it is possible to prevent the contents from striking the laser head 15 when the contents of the flexible container 1 are discharged.

  FIG. 5 shows a third embodiment of the flexible container tear bag system according to the present invention. FIG. 6 is an enlarged view of the main part. Also in the third embodiment, the elements corresponding to the first embodiment are denoted by the same reference numerals to simplify the description.

In the third embodiment, the opening 11 of the fixed floor plate 10 is set to a size in which the bottom of the flexible container 1 is engaged and locked. That is, the bottom of the flexible container 1 is fitted and locked in the opening 11 at the corner radius of the bottom and the side.
The laser head 15 is disposed above the fixed floor plate 10 when irradiating the laser near the edge (upper edge of the edge) of the opening 11 in the flexible container 1, from the radially outer side to the inner side of the opening 11 Irradiate the laser diagonally downward.
In this case, the inner peripheral surface of the opening 11 of the fixed floor slab 10 is a tapered surface with a narrow end toward the top, and the edge of the opening 11 on the upper surface side of the fixed floor slab 10 (E in FIG. 6) Enable the flexible container 1 to be positioned. The laser passes inside this edge E. Further, the rail 16 is annularly disposed on the upper surface of the fixed floor plate 10 so as to surround the opening 11. The movable floor plate 12 and the like are omitted, but may be employed.

  According to the third embodiment, the opening 11 of the fixed floor plate 10 is set to a size in which the bottom of the flexible container 1 is fitted and locked, and the laser head 15 is disposed above the fixed floor plate 10 Since the laser is irradiated obliquely downward from the radially outer side of the opening 11 toward the inner side, the laser head 15 is retracted from the lower side of the fixed floor plate 10 from which the content of the container 1 is discharged. It can be done. Thereby, the laser head 15 is hardly affected by the contents discharged from the flexible container 1 and the cutting function can be stably maintained.

  As mentioned above, by using a laser type flexible container tear bag system, it is possible to reliably tear the flexible container containing the removed material generated along with the decontamination, and it is necessary to process a large amount of flexible containers. In addition, since radioactive materials are handled, it is possible to improve the efficiency of operations basically performed in an unmanned state.

Next, an embodiment in which a laser head and a cutter (cutting blade) are provided side by side will be described.
There is a type of flexible container in which resin foil is lined with aluminum foil to prevent water leakage. Lasers (especially carbon dioxide gas lasers) are not good at metals with high reflectance, and therefore, in the case of a flexible container with aluminum foil, the resin cloth may be cut but it may not be possible to cut the aluminum foil.
In consideration of such a case, in the fourth to sixth embodiments, the laser head and the cutter (cutting blade) are provided side by side, and these can be selectively used.

  7 and 8 show a fourth embodiment of the flexible container tear bag system according to the present invention, FIG. 7 is a front view, and FIG. 8 is a bottom view. In the fourth embodiment, a mechanical cutter is added to the first embodiment (FIGS. 1 and 2), and elements corresponding to those of the first embodiment are assigned the same reference numerals to simplify the description. .

In the fourth embodiment, the cutter 31 is provided while being guided by the rail 16 for guiding the laser head 15.
The cutter 31 has its cutting edge 31a pierced from below at a part near the edge of the opening 11 in the flexible container 1 and can move relative to the edge of the opening 11 to cut the bottom of the flexible container 1 . The cutting blade 31a is movable in the piercing direction, and moves in the direction opposite to the piercing direction except when used, and is retracted from the flexible container 1.

  Therefore, the laser head 15 is selectively used when breaking a normal flexible container, and the cutter 31 is selectively used when breaking the aluminum foil-containing flexible container. In this manner, the laser head 15 or the cutter 31 is selectively used according to the flexible container to be bag-sealed to further ensure the bag-seal.

  In the fourth embodiment (FIGS. 7 and 8), the laser head 15 and the cutter 31 are drawn with 180 ° out of phase, but this is the reason for drawing, and they are provided side by side at the same position. You may rotate it. The same applies to the fifth and sixth embodiments described later.

  FIG. 9 shows a fifth embodiment of the flexible container tear bag system according to the present invention. In the fifth embodiment, a mechanical cutter is added to the second embodiment (FIG. 4), and elements corresponding to those of the second embodiment are assigned the same reference numerals to simplify the description.

In the fifth embodiment, the cutter 32 is provided while being guided by the rail 16 for guiding the laser head 15.
The cutter 32 has its cutting edge 32a pierced obliquely from the lower side in the vicinity of the edge of the opening 11 in the flexible container 1 and can move relative to the edge of the opening 11 to cut the bottom of the flexible container 1 It is. The cutting blade 32a is movable in the piercing direction, and moves in the direction opposite to the piercing direction except when used, and is retracted from the flexible container 1.
Also in this case, the laser head 15 or the cutter 32 is selectively used in accordance with the flexible container to be bag-sealed to further ensure the bag-seal.

  FIG. 10 shows a sixth embodiment of the flexible container tear bag system according to the present invention. The sixth embodiment adds a mechanical cutter to the third embodiment (FIG. 5), and the elements corresponding to those of the third embodiment are denoted by the same reference numerals to simplify the description.

In the sixth embodiment, the cutter 33 is provided while being guided by the rail 16 for guiding the laser head 15 on the upper side of the fixed floor plate 10.
The cutter 33 has a cutting blade 33a obliquely pierced from above at a part near the edge of the opening 11 in the flexible container 1 and moves relative to the edge of the opening 11 so that the bottom of the flexible container 1 can be cut is there. The cutting blade 33a is movable in the piercing direction, and moves in the direction opposite to the piercing direction except when used, and is retracted from the flexible container 1.
Also in this case, the laser head 15 or the cutter 33 is selectively used according to the flexible container to be bag-sealed to further ensure the bag-seal.

  According to the above fourth to sixth embodiments, depending on the specification of the flexible container 1 to be bag-broken, the laser head 15 or the cutters 31 to 33 (cutting blades 31a to 33a) are used properly to make the bag-breaking more reliable. It can be done.

Next, an embodiment using two types of lasers will be described.
For example, a carbon dioxide gas laser can easily cut resin, but is not good at metals such as aluminum. On the other hand, the fiber laser can cut metals such as aluminum relatively easily, but in the case of resin, it is difficult to cut because re-deposition occurs.
Therefore, as a laser head, a first laser head that emits a carbon dioxide gas laser and a second laser head that emits a fiber laser are provided, and these two types of laser heads are selected according to the flexible container to be broken. Enabled.
Although an embodiment using two types of lasers is omitted, in FIGS. 7 and 8, 15 may be a first laser head, and 31 may be a second laser head. Further, in FIG. 9, 15 may be a first laser head and 32 may be a second laser head. Further, in FIG. 10, 15 may be a first laser head, and 33 may be a second laser head.

Next, we will supplement the focal length of the laser.
Conventional lasers for cutting generally use a lens having a short focal length (about f <60 mm). In this case, the depth of focus that can be cut off is only about several mm. For this reason, it may not be able to cope with the unevenness of the flexible container surface.
Therefore, although not so common, the focal depth can be increased to about ± 200 mm by using a long focus lens (for example, about 600 mm in f> 100 mm class).
Therefore, by using a long focus lens of 100 mm or more, it is possible to cut even a flexible container having irregularities on the surface without any problem, and the focal position adjustment mechanism becomes unnecessary.

  The illustrated embodiment is merely an example of the present invention, and in addition to the one directly shown by the described embodiment, various improvements made by those skilled in the art within the scope of the claims can be made. Of course, it is something that includes changes.

For example, by arranging a plurality of laser heads 15 on the movement path and dividing them into pieces, it is possible to shorten the respective movement distances.
The opening 11 of the fixed floor plate 10 may not be circular, and may be, for example, a square. In this case, since the laser head 15 is moved along the inner circumference of the opening 11, the movement path is not circular, but is, for example, a quadrangle (C-shaped in consideration of the uncut portion). In this case, if a plurality of laser heads 15 are linearly moved, the respective moving mechanisms can be simplified.

  Further, in the above embodiment, the laser head 15 is moved along the inner periphery of the opening 11 of the fixed floor slab 10, but the laser head 15 (and the cutters 31 to 33) may be moved relatively. May be fixed, and the flexible container 1 may be rotated together with the fixed floor plate 10 (and the movable floor plate 12). In this case, it is preferable to rotate the flexible container 1 together from above while holding it against the fixed floor plate 10 by the pressing mechanism.

  Further, in the above embodiment, when the movable floor plate 12 retreats in the direction away from the flexible container 1, the construction is such that it retreats downward, but it does not obstruct the discharge of the contents. It may be configured to retreat in the direction.

  Moreover, in the said embodiment, although the flexible container 1 was demonstrated as cylindrical shape, the flexible container tear-off system which concerns on this invention can also be used for the tear-off of the flexible container shape | molded by rectangular solid shape (box shape).

DESCRIPTION OF SYMBOLS 1 flexible container 2 wire 3 hook 10 fixed floor plate 11 opening 12 movable floor plate 13 gap 14 drive mechanism 15 laser head 16 rail 17 traveling body 18 position adjustment mechanism 20 pressing mechanism 31, 32, 33 cutter 31a, 32a, 33a cutting blade

Claims (9)

Fixed floor plate on which the flexible container is placed;
An opening formed in the fixed deck so as to include a central bottom portion of the flexible container;
A laser head which relatively moves along the edge of the opening while irradiating the portion of the flexible container near the edge of the opening, and cuts the bottom of the flexible container;
It is disposed at the opening and forms a floor surface with the fixed floor plate at the time of cutting by the laser, and moves in a direction away from the flexible container after cutting to discharge the contents of the flexible container through the opening. Movable floor plate to make
It is configured to include a,
The flexible floored container is characterized in that the movable floor plate forms a gap through which the laser passes between the inner peripheral surface of the opening and the outer peripheral surface of the movable floor plate when forming a floor surface. system.   The flexible container tearing system according to claim 1, wherein the laser head is disposed below the fixed floor plate to irradiate a laser upward.   The flexible container tearing system according to claim 2, wherein the laser head irradiates the laser obliquely upward from the radially outer side to the inner side of the opening. Fixed floor plate on which the flexible container is placed;
An opening formed in the fixed deck so as to include a central bottom portion of the flexible container;
A laser head which relatively moves along the edge of the opening while irradiating the portion of the flexible container near the edge of the opening, and cuts the bottom of the flexible container;
It is disposed at the opening and forms a floor surface with the fixed floor plate at the time of cutting by the laser, and moves in a direction away from the flexible container after cutting to discharge the contents of the flexible container through the opening. Movable floor plate to make
It is configured to include a,
The opening is set to a size in which the bottom of the flexible container is fitted and locked.
The flexible container tear-off system , wherein the laser head is disposed above the fixed floor slab and irradiates a laser obliquely downward from the radially outer side to the inner side of the opening . The flexible container tear-off system according to any one of claims 1 to 4 , wherein the laser head cuts the bottom of the flexible container in a C-shape. The flexible container tear-off system according to any one of claims 1 to 5 , further comprising: a focus position adjustment mechanism capable of adjusting the focus position of the laser. The flexible container further includes a cutter that pierces a portion near the edge of the opening, moves relative to the edge of the opening, and cuts the bottom of the flexible container.
The flexible container tear-off system according to any one of claims 1 to 6 , wherein the laser head and the cutter are selectively used. The laser head is provided in two types, a first laser head for irradiating a carbon dioxide gas laser and a second laser head for irradiating a fiber laser.
The flexible container tearing system according to any one of claims 1 to 7 , wherein the first laser head and the second laser head are selectively used. A flexible container containing a removed material generated along with decontamination using the flexible container puncture system according to any one of claims 1 to 8 , characterized in that the flexible container is flexible. Container tear bag method.