JP2017105473A - Opening device of container bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening device of a bag-like container (for example, a flexible container bag) which can discharge a content from the bag-like container while separating the bag-like container and the content.SOLUTION: An opening device 100 for opening a flexible container bag 10 filled with a content to discharge the content includes: a storage part 110 for storing the flexible container bag 10; a cutting device 130 moving along the outer periphery of the flexible container bag 10 stored in the storage part 110 to cut a bag-like container in a circumferential direction; and a support device 140 configured to support the flexible container bag 10 from the lower side and release the support. At the time of cutting by the cutting device 130, the support device 140 supports the flexible container bag 10 from the lower side. After the cutting by the cutting device 130, the support by the support device 140 is released to open a discharge port.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a bag opening device that unpacks (breaks) a bag-like container such as a container bag and discharges the filled contents. More specifically, the present invention relates to a bag opening device that can separate bag contents and collect bag-like containers.

  For example, specific wastes such as wastes in the countermeasure area generated by decontamination stipulated in the Special Measures Act against Radioactive Substance Contamination are incinerated in a temporary incinerator and filled and stored in a flexible container bag.

  Note that the flexible container bag is a bag-like packaging material for storing and transporting a package of powder or granular material, and is abbreviated as a flexible container, a container bag, a flexible container bag, or the like. The mainstream is one with a volume and strength that can be filled with heavy materials of about 1 ton. It consists of a sheet and belt woven from strong chemical fibers such as polyethylene and polypropylene. Contents such as powdery substances such as are filled. Suitable for packing and transporting such contents. A long loop portion of a strong suspension belt that supports the entire flexible container bag is attached to the upper portion, and the flexible container bag is often configured to be lifted by a forklift or a crane (see FIG. 9 and the like).

  The incineration ash of the decontamination waste filled and stored in such a flexible container bag is transported to the final disposal site where landfill disposal is planned (Patent Document 1).

Japanese Patent Application Laid-Open No. 2015-142892 JP 2014-133195 A Japanese Patent Laying-Open No. 2015-85212

  By the way, as shown in FIG. 9, the flexible container bag which is actually filled and stored at the site is circular in the outer periphery shape in the horizontal section, or the horizontal section shape is rectangular. Even if the contents are filled, the side walls will be pulled outside, so if you try to landfill, a gap will be formed between adjacent flexible container bags, increasing the wasted space in the buried space, and the ground There is a concern that the strength of the steel is not stable.

  For this reason, on-site, it is required to reduce the gap generated during landfill by refilling the incinerated ash from a substantially cylindrical flexible container bag into a relatively thin hexahedral bag-like container. It has been.

  By the way, since the incineration ash of decontamination waste contains radioactive substances, the incineration ash can be removed from the flexible container bag without leaving any residue in the flexible container bag and without the manual work of the operator. It is necessary to discharge.

  However, since the incineration ash of the decontamination waste filled in the flexible container bag has low fluidity, it is actually difficult to discharge the contents from the flexible container bag without any residue.

  In addition, as a conventional flexible container bag unpacking machine (bag opening machine), it has been proposed in Patent Document 2 and Patent Document 3, etc., but these can be applied to a rotary cutter or the like in which a flexible container bag is disposed facing each other. Although it breaks when thrown in, it is not possible to cleanly separate (separately separate) the discharged contents from the flexible container bag, so the flexible container bag is applied to the incineration ash of decontaminated waste. There is a situation that post-processing becomes complicated.

  That is, for the convenience of disposal, it is required that the contents can be discharged from the flexible container bag without any residue, and that the flexible container bag and the discharged contents can be neatly separated. The apparatus described in Patent Document 3 cannot meet such a demand.

  However, it is not limited to the case where the incineration ash of decontamination waste is used as the contents. When other refills are requested, the contents are neatly separated from the flexible container bag. However, there is a demand to discharge.

  The present invention has been made in view of such circumstances, and while the configuration is relatively simple and low-cost, the contents are separated from the bag-like container while separating the bag-like container (for example, a flexible container bag) and the contents. An object of the present invention is to provide a bag opening device that can be discharged.

For this reason, the present invention
A bag-like container unpacking device for unpacking a content-filled bag-like container filled with the contents and discharging the contents,
An accommodating portion for accommodating the content-filled bag-like container in a suspended state;
Cutting means for moving along the outer periphery of the content-filled bag-like container accommodated in the accommodating portion and cutting the bag-like container in the circumferential direction;
A support means configured to support the content-filled bag-like container accommodated in the accommodating portion from below and to be able to release the support;
Comprising
While cutting by the cutting means, the support means supports the content-filled bag-like container from below,
After the cutting by the cutting means, the support by the supporting means is released to open the discharge port.

  In the present invention, the cutting means may be characterized in that the bag-like container is cut in the circumferential direction while leaving a non-cut portion in a part of the bag-like container in the circumferential direction.

In the present invention, the contents-filled bag-like container housed in the housing portion is fastened and fixed from the outer periphery, and includes fixing means configured to be able to release the fixing,
At the time of cutting by the cutting means, the fixing means fastens and fixes the content-filled bag-like container housed in the housing portion from the outer periphery.

  In this invention, the outer peripheral shape in the horizontal cross section of a bag-shaped container can be characterized by circular shape.

  According to the present invention, a bag-like shape can be discharged from a bag-like container while separating a bag-like container (for example, a flexible container bag) and the contents while having a relatively simple and low-cost configuration. A container unpacking device can be provided.

It is a perspective view which shows an example of the refilling plant (the refilling plant for refilling the contents of the flexible container bag with the designated storage container) in which the bag opening apparatus which concerns on one embodiment of this invention is utilized. (A) is a perspective view which shows the whole unpacking apparatus which concerns on embodiment same as the above, (B) is a perspective view which shows the mode of carrying in of the flexible container (flexible bag) to this unpacking apparatus. It is a perspective view which extracts and shows the fixing device, cutter device, and support device of the bag opening device according to the same embodiment. It is horizontal direction sectional drawing for demonstrating the fixing method (tightening method) of the fixing device of the bag opening apparatus which concerns on embodiment same as the above. It is a perspective view for demonstrating the method of cut | disconnecting the flexible container bag fixed to the fixing device of the bag opening apparatus which concerns on embodiment same as the above, and the lower side by the support apparatus with the cutter apparatus to the circumferential direction. It is horizontal direction sectional drawing for demonstrating the cutting of the circumferential direction of the flexible container bag by the cutter apparatus of the bag opening apparatus which concerns on embodiment same as the above. It is a perspective view which shows the state which open | released the support apparatus of the bag opening apparatus which concerns on embodiment same as the above, and opened the discharge port. It is an example of the process figure for demonstrating the process of discharging | emitting a content, separating a flexible container bag and a content from the flexible container bag with which the content is filled in the bag opening apparatus which concerns on embodiment same as the above. It is a perspective projection figure which shows the example of 1 structure of the flexible container bag of a cross-sectional substantially circular shape.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings. The present invention is not limited to the embodiments described below.

  As shown in FIG. 1, a bag opening device (bag opening machine, bag opening device, bag opening machine) 100 for a bag-like container (flexible container bag) according to an embodiment of the present invention is incinerated. A cylindrical flexible container bag (hereinafter also referred to as a flexible container bag, which corresponds to an example of a bag-like container of the present invention) 10 filled with ash is relatively thin. It can be used in a refilling plant for refilling a hexahedral bag-shaped container (designated storage container) 30.

  However, the content of the flexible container bag 10 is not limited to this, and the present invention is applicable to other types of content.

  In addition, although the structural example of the flexible container bag 10 which is not filled with the content is shown in FIG. 9, it is comprised with the belt 11 for suspension with the cylindrical container (bucket) with a bottom opening and bottom, polyethylene, It is made of strong chemical fiber such as polypropylene.

This will be described in more detail with reference to FIG.
(Step 1)
The flexible container bag 10 filled with the incinerated ash carried in by a truck or the like is subjected to pretreatment (draining, etc.) in a pretreatment yard, and then suspended from the upper side by a forklift or the like via a loop belt 11. It is carried into the unpacking apparatus 100 (see (1) “Unloading the existing storage container”, (2) “Draining (dehydration)” in FIG. 1).

(Step 2)
The incinerated ash-filled flexible container bag 10 carried (supplied) into the unpacking apparatus 100 is broken by leaving a part in the circumferential direction by a method to be described later, and discharges the incinerated ash as the contents downward (FIG. 1 (3) (see “Extracting Existing Storage Container”).
At this time, since the flexible container bag 10 remains held in the bag opening apparatus 100, the contents can be discharged from the flexible container bag 10 while separating the flexible container bag 10 and the contents.

(Step 3)
The contents (incineration ash) discharged below the unpacking apparatus 1 are carried on the belt conveyor 20 and are supplied to a roll crusher (crusher) by free fall at the end, where they are crushed to a predetermined level. Supplied (filled) and packed into a designated storage container (hexahedral bag-like container having a relatively small thickness) 30 ((4) “Re-crushing and filling of specified storage container, rolling pressure”, (5) “ (See “Specified Storage Container Packaging”).

(Step 4)
The designated storage container 30 filled with the incinerated ash is set in the designated storage container formwork, loaded into a truck, etc., and transported toward a landfill site ((6) “Designated storage container set”, ( 7) Refer to “Loading and unloading designated storage containers”).

Here, the bag opening device (bag breaking device) 100 according to the present embodiment will be described.
As shown in FIGS. 2 (A), 2 (B), etc., the unpacking apparatus 100 according to the present embodiment is
An accommodating portion 110 that accommodates the flexible container bag 10 filled with contents in a suspended state from above;
A fixing device 120 configured to tighten and fix the flexible container bag 10 accommodated in the accommodating portion 110 from the outer periphery and to be able to release the fixation;
A cutter device 130 that moves along the outer periphery of the flexible container bag 10 fixed by the fixing device 120 and cuts the flexible container bag 10 in the circumferential direction;
A support device 140 configured to support the flexible container bag 10 accommodated in the accommodating portion 110 from below and to be able to release the support;
It is comprised including.

And in the bag opening apparatus (bag breaking apparatus) 100 which concerns on this Embodiment, as mentioned later,
During the cutting by the cutter device 130, the support device 140 supports the flexible container bag 10 from below,
After cutting by the cutter device 130, by releasing the support by the support device 140 and opening the discharge port,
The contents are discharged while separating the bag-like container and the contents.

  The fixing device 120, the cutter device 130, and the support device 140 correspond to an example of the fixing device, the cutting device, and the support device according to the present invention.

  Here, the side wall of the accommodating portion 110 according to the present embodiment is configured to function as the movable wall 121 of the fixing device 120.

That is, the movable wall 121 of the fixing device 120 according to the present embodiment carries (inserts) the columnar flexible container bag 10 accommodated inside from the upper side, as shown in FIG. 2, FIG. 3, FIG. In order to facilitate, it is configured by a plate-like member which is disposed facing the flexible container bag 10 with a slight gap from the outer periphery of the flexible container bag 10 and formed in an arc shape having a concave inside.
As shown in FIG. 8 (2), the flexible container bag 10 is suspended by a forklift or the like and is carried into the accommodating portion 110 from above. It is suspended by.

  Further, as shown in FIGS. 3 and 4, the movable wall 121 has a substantially equal length in the circumferential direction so as to be approximately equal to three (about 120 degrees) with respect to the circumferential direction of the central axis extending in the vertical direction. It is formed to occupy (angle range). However, depending on the outer peripheral shape of the flexible container bag 10, the movable wall 121 can be divided into parts other than three equal parts such as four equal parts in the circumferential direction.

  As shown in FIGS. 2, 3, 4, etc., each movable wall 121 is supported by the main body (frame or the like) of the bag opening device 100 so as to be pivotable (rotatable) about each pivot 121 </ b> A. The base end is pivotally supported by the unpacking apparatus 100 main body (frame or the like) and the distal end is pivotally attached to the movable wall 121 at a predetermined distance from the pivot 121A. A hydraulic cylinder 122 as an actuator is provided.

  As the extendable actuator, for example, a pneumatic cylinder, a hydraulic jack, an electric jack, or the like other than the hydraulic cylinder can be used.

  According to this configuration, when hydraulic pressure is supplied to each hydraulic cylinder 122, the entire length is extended and the tip moves in the direction of the apparatus central axis (the central axis of the flexible container bag 10), so that each movable wall 121 moves around each pivot 121A. 3 and 4 is pivoted in the pressing direction (tightening direction) to tighten (press) the flexible container bag 10 from the outer peripheral side toward the center side with a predetermined pressure (see (3) in FIG. 8). ).

  Thereby, the flexible container bag 10 accommodated in the accommodating portion 110 is fastened and fixed to the main body (frame or the like) of the unpacking apparatus 100.

  When the cutter device 130 is driven in this state, the rotary blade 131 of the cutter device 130 that has been retracted is rotated, and the cutter device 130 is moved toward the central position (device central axis) of the flexible container bag 10 and rotated. The blade 131 cuts the flexible container bag 10 from the outside in the circumferential direction (see FIG. 6).

  After that, the cutter device 130 rotates along a ring gear 133 that meshes with the pinion gear 132 by rotating and driving the pinion gear 132 rotatably supported by the cutter device 130 main body (the turning table 134) by an electric motor or the like. Thus, the flexible container bag 10 is moved around (see (4) in FIGS. 3, 5, 6, and 8).

  However, instead of the ring gear 133, the chain is wound in an annular shape at the same place and fixed to the main body (frame or the like) of the bag opening device 100, while the sprocket that can engage with the chain is driven to rotate instead of the pinion gear 132. Thus, the cutter device 130 can be swung around the flexible container bag 10.

  By the way, the movement of the cutter device 130 around the flexible container bag 10 is performed on the turntable 134 that supports the cutter device 130 around the flexible container bag 10 via a bearing or the like so as to be rotatable with respect to the main body of the bag opening device 100. The turning of the turning table 134 can be guided by a guide rail or the like.

  Thus, by moving (rotating and turning) the cutter device 130 around the flexible container bag 10, the rotary blade 131 of the cutter device 130 continuously cuts the flexible container bag 10 along the circumferential direction. (See FIG. 6).

  Then, as shown in FIG. 6, when the cutting progresses to a certain degree (cutting range of about 300 ° in the circumferential angle), the cut side (the flexible container bag 10 below the rotary blade 131) and the remaining In order not to completely separate the side (the flexible container bag 10 above the rotary blade 131) from the flexible container bag 10, the non-cut portion is left in a part of the circumferential direction of the flexible container bag 10, and the cutting is finished. The rotary blade 131 of the cutter device 130 is retracted (the cutter device 130 is moved radially outward to release the contact between the flexible container bag 10 and the rotary blade 131).

The cutter device 130 can be easily moved and retracted toward the center direction (center position) of the flexible container bag 10 by using an extendable actuator such as a hydraulic cylinder. For this reason, the rotary blade 131 of the cutter device 130 has a structure in which the amount of biting of the blade into the flexible container bag 10 can be adjusted according to the shape of the flexible container bag 10.
Further, the movement trajectory of the rotary blade 131 of the cutter device 130 is not limited to a circular shape, and moves on the movement trajectory of, for example, an elliptical shape or a polygonal shape according to the outer peripheral shape of the flexible container bag 10 or the like. Can be configured.

  By the way, as described above, even if the outer periphery of the flexible container bag 10 filled with the contents is cut in the circumferential direction, in this embodiment, the support device 140 supports the flexible container bag 10 from below. In the middle of the process, a part of the contents is discharged from the flexible container bag 10, and the flexible container bag 10 cannot maintain a good cylindrical shape for cutting. Thus, it is possible to reliably prevent the cutting until the end position).

  If it is impossible to cut to the target position (cutting end position in FIG. 6, cutting range of about 300 ° in the circumferential direction), the flexible container bag is opened when the support device 140 is released and the discharge port (see FIG. 7) is opened. Although all the contents cannot be discharged well from 10 and the post-processing becomes complicated, the support device 140 cuts the flexible container bag 10 from below so that the target position can be reliably obtained. Therefore, such a problem can be reliably and effectively prevented.

Here, as shown in FIG. 3, the support device 140 includes a pair of opening / closing plates 141 and 142.
The pair of opening / closing plates 141 and 142 are supported with respect to the main body (frame or the like) of the bag opening device 100 so as to be opened and closed (rotatable) via the pivots 141A and 142A.

  In the support state in which the flexible container bag 10 is supported from below, the pair of opening and closing plates 141 and 142 are maintained in a substantially horizontal state (closed state) (see (2) in FIGS. 3 and 8).

  By the way, since the flexible container bag 10 is suspended from above by a lifting tool or the like, it is not necessary for the supporting device 140 to support the entire mass of the flexible container bag 10, and the flexible container bag can be satisfactorily cut by the cutter device 130. It is sufficient if 10 can be supported from below. However, since there are cases where the cutting process can be performed more smoothly if the total mass of the flexible container bag 10 is supported, the support device 140 has high strength that can support the total mass of the flexible container bag 10. It can also be configured.

  In this substantially horizontal state (closed state), the cutter device 130 moves around the flexible container bag 10 in the circumferential direction, and cuts to the target position (cutting range of about 300 ° in the circumferential direction angle). After moving away from the flexible container bag 10 to the retracted position, in the present embodiment, the pair of opening and closing plates 141 and 142 of the support device 140 are lowered around the pivots 141A and 142A by an actuator (not shown) such as a hydraulic cylinder. To the open state (a state where the support is released and the discharge port is opened) (see FIG. 7).

  Due to the transition to the open state, the flexible container bag 10 is cut by the cutter device 130 leaving a part of the non-cut portion in the circumferential direction, so that the contents of the flexible container bag 10 are a pair of opening and closing plates 141 of the support device 140. , 142 passes through the discharge port (see FIG. 7) and is discharged downward (see (5) in FIGS. 7 and 8).

  At this time, the flexible container bag 10 on the side cut by the cutter device 130 (below the rotary blade 131) does not fall downward together with the contents discharged downward, and the remaining side ( Since the connection with the flexible container bag 10 (above the rotary blade 131) is maintained, it hangs downward (see (5) and (6) in FIG. 8).

  In addition, since the flexible container bag 10 above the rotary blade 131 is suspended via the belt 11 via a lifting tool or the like, it does not fall downward (see (6) in FIG. 8).

  That is, according to the present embodiment, all the contents in the flexible container bag 10 can be discharged downward, and the discharged contents and the flexible container bag 10 can be reliably separated.

  In other words, according to the present embodiment, the contents are discharged from the bag-like container while separating the bag-like container (for example, a flexible container bag) and the contents while having a relatively simple and low-cost configuration. An unpacking device for a bag-like container can be provided.

  In the present embodiment, the method of rotating the rotary blade 131 in the cutter device 130 has been described as an example. However, the present invention is not limited to this, and a blade such as a chain saw, a reciprocating saw, a jigsaw or other blades (cutter, saw ).

  By the way, in (2)-(6) of FIG. 8, the flexible container bag 10 is suspended from the upper side by a hanging tool or the like. For this reason, it is not necessary for the support device 140 to support the entire mass of the flexible container bag 10, and it is sufficient if the flexible container bag 10 can be supported from below so that the cutting process by the cutter device 130 can be performed satisfactorily. Therefore, the support device 140 can have a relatively simple configuration.

  Further, in the present embodiment, the ends of the pair of opening and closing plates 141 and 142 of the support device 140 are illustrated in close contact with each other without gaps, but the flexible container bag on the side cut by the cutter device 130 (below the rotary blade 131). If it can support so that 10 may not fall, there may be a certain amount of clearance between the front ends of the opening and closing plates 141 and 142 or in the lateral direction.

  In addition, the opening / closing plates 141 and 142 are not limited to being configured by a flat plate having no opening as illustrated in FIG. 3, and may be configured to support the lower portion of the flexible container bag 10 with a rod-shaped element. It is also possible to configure the rod-like element or the frame element by welding them in a lattice shape.

  Furthermore, in the present embodiment, the mechanism for opening and closing the opening / closing mechanism of the support device 140 by pivoting has been described as an example, but the present invention is not limited to this, and a sliding gate type opening / closing mechanism or the like is adopted. It is also possible.

  In the present embodiment, the flexible container bag 10 having a circular outer peripheral shape in the horizontal cross section has been described as an example. However, the present invention is not limited to this, and the unpacking apparatus according to the present invention includes the contents. Can be utilized as a bag opening device for discharging while separating from a bag-like container, and the outer peripheral shape in the horizontal section is not particularly limited to a triangular shape, a rectangular shape, a polygonal shape or the like.

  Moreover, although the case where the fixing device 120 was included was illustrated in this Embodiment, a bag-shaped container can be accommodated in the accommodating part 110 with a moderate adhesion degree, and the cutting process by the cutter apparatus 130 can be performed favorably. If possible, the fixing device 120 can be omitted from the unpacking device 100 (the movable wall 121 can be fixed).

By the way, in this embodiment, when the flexible container bag 10 is cut in the circumferential direction by the cutter device 130, the upper portion above the cutting line of the flexible container bag 10 is left without cutting a part in the circumferential direction and leaving a non-cut portion. However, the present invention is not limited to this.
That is, for example, when it is sufficient that the upper part of the flexible container bag 10 can be separated from the contents, or after the lower part of the flexible container bag 10 is mixed with the contents, it can be easily separated or after-treatment even in the mixed state. In such a case, after cutting the entire circumference without leaving a non-cut portion and discharging the lower portion of the cut flexible container bag 10 together with the contents, the flexible container bag 10 A configuration in which the lower part is collected or post-processed is also possible.

  The embodiments according to the present invention described above are merely examples for explaining the present invention, and various modifications can be made without departing from the gist of the present invention.

10 flexible container bag (flexible bag: equivalent to an example of the bag-like container of the present invention)
20 Belt conveyor 30 Designated storage container 100 Bag opening device (bag breaking device)
110 container 120 fixing device (corresponding to one example of fixing means according to the present invention)
121 movable wall 121A pivot 122 hydraulic cylinder (actuator)
130 Cutter device 131 Rotary blade (cutter) (corresponding to an example of the cutting means according to the present invention)
132 Pinion gear (or sprocket)
133 Ring gear (or an annularly arranged chain)
134 Rotating table 140 Support device (corresponding to an example of support means according to the present invention)
141, 142 Opening and closing plate

For this reason, the present invention
A bag-like container unpacking device for unpacking a content-filled bag-like container filled with the contents and discharging the contents,
An accommodating portion for accommodating the content-filled bag-like container in a suspended state;
Cutting means for moving along the outer periphery of the content-filled bag-like container accommodated in the accommodating portion and cutting the bag-like container in the circumferential direction;
A support means configured to support the content-filled bag-like container accommodated in the accommodating portion from below and to be able to release the support;
The content-filled bag-like container provided above the cutting means is fixed by tightening from the outer periphery by a movable wall driven by an actuator, and the fixing can be released. Fixing means;
Comprising
At the time of cutting by the cutting means, the fixing means fastens and fixes the content-filled bag-like container accommodated in the accommodating portion from the outer periphery with a movable wall, and the support means lowers the content-filled bag-like container. While supporting from the side,
After the cutting by the cutting means, the support by the supporting means is released to open the discharge port.

In the present invention, the support means includes a pair of opening and closing plates that are provided on the outer peripheral side of the content-filled bag-like container accommodated in the accommodating portion and are rotatably supported by a pair of pivots that face each other. Configured,
The pair of opening and closing plates are closed by rotating upward around the corresponding pivots, and in this state, while supporting the content-filled bag-like container from below,
The pair of opening and closing plates is opened by rotating downward about the corresponding pivot, and in this state, the support of the content-filled bag-like container is released to open the discharge port. be able to.

Claims (4)

A bag-like container unpacking device for unpacking a content-filled bag-like container filled with the contents and discharging the contents,
An accommodating portion for accommodating the content-filled bag-like container in a suspended state;
Cutting means for moving along the outer periphery of the content-filled bag-like container accommodated in the accommodating portion and cutting the bag-like container in the circumferential direction;
A support means configured to support the content-filled bag-like container accommodated in the accommodating portion from below and to be able to release the support;
Comprising
While cutting by the cutting means, the support means supports the content-filled bag-like container from below,
After the cutting by the cutting means, the support by the support means is released to open the discharge port.   2. The bag-opening device for a bag-like container according to claim 1, wherein the cutting means cuts the bag-like container in the circumferential direction while leaving a non-cut portion in a part of the bag-like container in the circumferential direction. The content-filled bag-like container housed in the housing portion is fastened and fixed from the outer periphery and includes a fixing means configured to be able to release the fixing,
3. The bag-like shape according to claim 1, wherein, when cutting by the cutting means, the fixing means fastens and fixes the content-filled bag-like container accommodated in the accommodating portion from the outer periphery. Container unpacking device. The bag-shaped container unpacking device according to any one of claims 1 to 3, wherein an outer peripheral shape of the bag-shaped container in a horizontal cross section is a circular shape.