JP6837303B2 - Packaging equipment - Google Patents

Description

The present invention relates to a packaging equipment for filling a plurality of containers in the carton.

Conventionally, research and development have been carried out on a packaging device for filling a carton with a container such as a beverage can such as canned beer or canned juice (hereinafter, appropriately referred to as "filling object").

For example, Patent Document 1 describes a packaging device in which a plate-shaped box material having a plurality of bent portions is bent and formed into a box shape, and articles are packaged by the box material, and the state is in the process of being formed into a box shape. A pushing mechanism that pushes an article into the inside of the box material, a sensor that detects that an abnormality has occurred in which the inner flap of the box material is bent beyond a specified angle, and an inner flap and an outer flap of the box material. When the occurrence of the abnormality is detected by the sensor, a glue providing portion that provides glue to the overlapping portion, a pressing mechanism that presses the outer flap of the box material against the inner flap to adhere the outer flap to the inner flap, and the sensor. A packaging device including an error processing unit that executes error processing is disclosed.

Further, in Patent Document 2, is the flap of the sheet as a packaging material transported by the caser's conveyor bent so as to be correctly guided by the flap guide provided along the transport direction of the conveyor? A normal state detection sensor that detects the flap in the area where the flap, which is correctly guided by the flap guide, should pass, and the normal state detection sensor, which is a bending state inspection device for the seat flap that inspects whether or not the flap is present. A seat flap bent state inspection device is disclosed, which comprises a discriminating means for determining whether or not the folded state of the flap is normal based on the output signal of the above.

Japanese Unexamined Patent Publication No. 2006-341859 Japanese Unexamined Patent Publication No. 2009-161211

Since the number of processes per unit time of the packaging device is enormous, it is very difficult to completely eliminate defects (defects, abnormalities, etc.) that occur during each process by the packaging device.
Therefore, many techniques for detecting the occurrence of defects in the packaging device, such as the techniques according to Patent Documents 1 and 2, have been proposed. The techniques according to Patent Documents 1 and 2 focus on the occurrence of defects in the flaps of the carton in the packaging device, and detect the occurrence of defects in which the folded state of the flaps is not in a desired state. Can be done.

The present inventors examined the situation of occurrence of defects in the packaging device, and found that, as a defect different from the defects that the technologies according to Patent Documents 1 and 2 pay attention to, when the object to be filled is filled in the carton, both It was confirmed that the problem that both or one of them is damaged by excessive contact with each other rarely occurs.
And, until now, there has been no method for appropriately detecting such a defect.

The present invention aims to provide a packaging equipment that can properly detect a defect that occurs when filling the packing object in the carton.

The problem can be solved by the following means.
(1) A packaging device for filling a carton with a plurality of containers, the detection means for detecting the position information of the carton after the tips of the plurality of containers have entered the carton, the position information, and the above. When the amount of change in the position of the carton in the filling direction for filling the plurality of containers is equal to or more than a predetermined amount by comparing with the reference position information of the carton before the plurality of containers enter the carton, at the time of filling. A packaging device including a determination means for determining that a problem has occurred in the above.
(2) The above-mentioned 1 is provided with a positioning means for positioning the position of the carton in the filling direction so as to be the position indicated by the reference position information before the tips of the plurality of containers enter the carton. Packaging equipment.
(3) The packaging device according to 1 or 2 above, wherein the detection means is a photoelectric sensor installed at a predetermined distance from the carton on the side opposite to the side for filling the plurality of containers. ..
(4) The plurality of containers include a top surface portion that covers the top surfaces of the plurality of containers, a bottom surface portion that covers the bottom surfaces of the plurality of containers, and a pair of side surface portions that cover both sides of the plurality of containers. The packaging device according to any one of 1 to 3 above, which is packaged by a packaging body .

According to the packaging device according to the present invention, since the occurrence of a defect is determined based on the amount of change in the position of the carton in the filling direction, the plurality of containers and the carton are excessively contacted and the carton becomes large in the filling direction. When pressed, it can be determined that a problem has occurred.
Therefore, according to the packaging device according to the present invention, it is possible to appropriately detect a defect that occurs when a plurality of containers to be filled are filled in a carton.

It is a perspective view of the packaging apparatus which concerns on this embodiment. It is a top view of the conventional packaging apparatus. It is a top view of the state where excessive contact occurs between a filling object and a carton. It is an enlarged view of the rear end of the carton, (1) is a top view when there is no influence when the filling object enters the carton, and (2) is a top view when the filling object is in the carton. It is a top view when the influence at the time of entering was large. It is a top view of the packaging apparatus which concerns on this embodiment. It is a flowchart of the filling method which concerns on this embodiment.

Hereinafter, a packaging device according to the present invention and an embodiment (embodiment) for carrying out the filling method will be described with reference to the drawings.
The drawings referred to in the following description schematically show the configuration of the present embodiment, exaggerating the scale, spacing, positional relationship, etc. of each member, and omitting the illustration of a part of the members. There is something that is happening.

[carton]
First, the packaging device according to the present embodiment and the carton used for the filling method will be described with reference to FIG.
The carton 10 is a box body for accommodating and packaging the filling object 20.
The carton 10 includes, for example, a square cylinder composed of a bottom surface portion 11, a top surface portion 12, and two side surface portions 13, bottom surface flaps 11a and 11b connected to the end portions of the bottom surface portion 11, and a top surface portion. It is a wraparound type box body including top surface flaps 12a and 12b connected to the end of 12 and side flaps 13a and 13b connected to the end of the side surface 13.

The carton 10 shown in FIG. 1 has a configuration in which the top surface portion 12 and the bottom surface portion 11 have a quadrangular shape, but four corner portions (the left and right end portions on the front side and the left and right end portions on the rear side in FIG. 1) serve as dead spaces. In some cases, these four corner portions may be eliminated so that the top surface portion 12 and the bottom surface portion 11 have an octagonal shape. Further, the shape of the top surface portion 12 and the bottom surface portion 11 may be a dodecagon, a hexagon, etc. by providing a plurality of corners at each of the four corner portions, and further, only one corner portion may be eliminated. It may be a pentagon or a hexadecagon that eliminates only two corners.

When the filling object 20 is filled by the packaging device A, the carton 10 has an open top surface portion 12 and a side for filling the filling object 20 (hereinafter, appropriately referred to as a “filling side”: the front side in FIG. 1). ), The two side flaps 13a and 13a are opened, and the two side flaps 13b and 13b on the side opposite to the side to be filled with the filling object 20 (hereinafter, appropriately referred to as "filling opposite side": the rear side in FIG. 1) are Closed (or almost closed).
In this carton 10, after the filling object 20 is filled by the transfer means 5 of the packaging device A, the connecting surface 14 is fixed to the top surface portion 12 to form a square cylinder, and each flap forms a square cylinder. By closing the opening of the square cylinder, it becomes a box.

[Filling object]
Next, the packaging device according to the present embodiment and the filling object used in the filling method will be described with reference to FIG.
The filling object 20 is a plurality of containers 21. The shape, size, material, number, and the like of the container 21 are not particularly limited. However, the shape of the container 21 is preferably a substantially cylindrical shape having a lid and a bottom such as canned beer and canned juice, rather than a shape like a PET bottle. The size (capacity) of the container 21 is, for example, 1 L or less, preferably 500 ml or less, and may be 350 ml or 250 ml.

In FIG. 1, the filling object 20 shows a group of containers packaged in the package 22, but the container 21 does not have to be packaged in the package 22, and a plurality of containers 21 are not grouped together. , So-called loose product.

However, when the object to be filled 20 is a group of containers packaged in the package 22, the sleeve 22d at the tip of the package 22 easily interferes with the end of the side surface 13 of the carton 10 on the filling side, and the sleeve 22d The effect of the present invention (appropriate detection of defects) is remarkably exhibited because the carton 10 and the carton 10 are easily damaged, which is very preferable.
The packaging body 22 includes a top surface portion 22a that covers the top surfaces of the plurality of containers 21, a bottom surface portion 22b that covers the bottom surfaces of the plurality of containers 21, and a pair of side surface portions 22c that cover both sides of the plurality of containers 21. Be prepared.

[Structure of packaging device according to this embodiment]
Next, the configuration of the packaging device according to the present embodiment will be described with reference to FIG. 1 (see FIG. 5 as appropriate).
The packaging device A according to the present embodiment is an device that fills a carton 10 with a plurality of containers 21 (filling objects 20) and wraps them in the carton 10.
The packaging device A includes a detecting means 1 and a determining means 2. Further, the packaging device A may further include a positioning means 70 (see FIG. 5). Further, the packaging device A may include a transfer lane 3, a transfer guide 4, a transfer means 5, a carton lane 6, a carton guide 7, and a control means (not shown).
Hereinafter, each configuration of the packaging device A according to the present embodiment will be described.

(Detection means)
The detection means 1 is a means for detecting the position information of the carton 10 after the tip end portion of the filling object 20 has entered the carton 10.
The detection means 1 is not particularly limited as long as it can detect the position information of the carton 10, and even a non-contact type sensor such as a photoelectric sensor, a laser sensor, or an ultrasonic sensor can be a contact type sensor. There may be.
The detection result obtained by the detection means 1 is transmitted to the determination means 2.

The detection means 1 is installed on the opposite side of the filling (rear side of FIG. 1) at a predetermined distance from the carton 10. Then, the detection means 1 is, for example, a known photoelectric sensor including a light projecting unit and a light receiving unit, in which the light projecting unit projects light L onto the side flap 13b of the carton 10 and reflects the light L at the side flap 13b. When the light receiving unit receives the light L, the distance to the carton 10 (specifically, the side flap 13b of the carton 10) in the filling direction (front-rear direction in FIG. 1) is detected.
In addition, although FIG. 1 shows a state in which the filling target object 20 is not included in the carton 10 for easy explanation, in reality, the filling target object 20 is at the timing when the position information is detected by the detecting means 1. The tip is in the carton 10 (SC in FIG. 5).
A detailed detection method by the detection means 1 will be described later in the filling method according to the present embodiment.

(Judgment means)
The determination means 2 includes "position information" of the carton 10 after the tip of the filling object 20 enters the carton 10, and "reference position information" of the carton 10 before the filling object 20 enters the carton 10. Is a means for determining that a defect has occurred during filling when the amount of change in the position of the carton 10 in the filling direction (front-back direction in FIG. 1) is equal to or greater than a predetermined amount.

Here, the "position information" is information received by the determination means 2 from the detection means 1. And, this "position information" is information about the position of the carton 10 after the tip end portion of the filling object 20 enters the carton 10, that is, the carton 10 in the state of SC and SD in FIG. 5, and is filled. This is information on the position (position in the filling direction) of the carton 10 in a state after the object 20 is affected (hooked, contacted, etc.) when entering the carton 10.
On the other hand, the "reference position information" is information recorded (input and stored in advance) in the determination means 2. And, this "reference position information" is information about the position of the carton 10 before the filling object 20 enters the carton 10, that is, the carton 10 in the state of SA and SB in FIG. 5, and is the information about the filling object 20. Is information on the position (position in the filling direction) of the carton 10 in an unaffected state when entering the carton 10.

The information that the determination means 2 is "more than a predetermined amount" as a criterion for the presence or absence of a defect is the information recorded in the determination means 2. The "predetermined amount or more" may be appropriately set, but is preferably 5 mm or more, and more preferably 3 mm or more. By setting in this way, it is possible to prevent the determination means 2 from erroneously determining that a defect has occurred when the carton 10 is slightly displaced in the normal filling operation.

The determination means 2 is, for example, a microcomputer, which is not shown, but includes electronic circuits such as a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and various interfaces. .. Then, the program stored in the ROM is read out and expanded in the RAM, and the CPU executes various processes such as determination.
The detailed determination method by the determination means 2 will be described later in the filling method according to the present embodiment.

(Positioning means)
The positioning means 70 is a means for positioning the position of the carton 10 in the filling direction so as to be the position indicated by the reference position information before the tip end portion of the filling object 20 enters the carton 10.
As shown in FIG. 5, the positioning means 70 is a plate material that projects forward from the carton guide 7. Then, the positioning means 70 positions the carton 10 in the filling direction by pressing the rear end portion of the carton 10 transferred from the right side to the left side from the rear side to the front side.

As shown in FIG. 5, the forward protruding width of the positioning means 70 (the protruding distance with respect to the carton guide 7) is such that the position of the carton 10 positioned by the positioning means 70 in the filling direction is determined by the determining means 2. It suffices if it is set to be the position indicated by the recorded reference position information.
Further, the setting location of the positioning means 70 in the left-right direction may be a location where the carton 10 can be positioned before the carton 10 is in the SC state of FIG. 5 (the tip of the filling object 20 is in the carton 10). .. Therefore, the positioning means 70 may be configured to be able to position with respect to the carton 10 in the SB state as shown in FIG. 5, or may be configured to be positioned with respect to the carton 10 in the SA state of FIG. Good.

With the above-described configuration, the positioning means 70 can play a role of correcting the deviation of the carton 10 from the front side to the rear side in the front-rear direction when the carton 10 is transferred from the right side to the left side.

(Transport lane, transfer guide, transfer means)
The transfer lane 3 is a lane that guides the filling object 20 to the carton 10, and one end thereof is located near the opening of the carton 10 (near the tip of the bottom surface 11).
The transfer guide 4 is a member that guides the transfer of the filling object 20 on the transfer lane 3, and is provided on both sides (left and right sides in FIG. 1) of the filling object 20 on the transfer lane 3.
The transfer means 5 is a means for transferring the filling object 20 on the transfer lane 3 to the carton 10, and one end (front end in FIG. 1) of the filling object 20 is placed on the carton 10 side (rear side in FIG. 1). ).

As shown in FIG. 5, a plurality of sets of the transfer lane 3, the transfer guide 4, and the transfer means 5 are connected in the left-right direction at the same speed as the carton 10 is transferred from the right side to the left side. Move from right to left.

(Carton lane, carton guide)
The carton lane 6 is a lane for transferring the carton 10 from the right side to the left side, and the opening of the carton 10 on the carton lane 6 is in a state of facing the tip end portion of the transfer lane 3. The carton lane 6 is provided with a transfer assisting means (not shown) that assists the transfer of an appropriate carton 10 by pressing the side surface 13 of the carton 10 to be transferred from the right side to the left side from the outside.

The carton guide 7 is a guide that prevents the carton 10 from moving too far to the rear side. Specifically, the carton guide 7 slightly presses forward while in contact with one end of the carton 10 (the end of the side flap 13b) that is transferred from the right side to the left side to some extent in the carton 10 in the front-rear direction. Perform positioning.

(Control means)
The control means (not shown) is a means for controlling the movements of the transfer lane 3, the transfer guide 4, the transfer means 5, the carton lane 6, and the transfer assisting means (not shown).
The control means moves the transfer lane 3, the transfer guide 4, the transfer means 5, the carton lane 6, and the transfer assisting means (not shown) from the right side to the left side at a predetermined speed, and moves the transfer means 5 from the front side at a predetermined speed. Move to the rear side at a predetermined speed.
The determination means 2 may be configured to perform all control by the control means, and in that case, it is not necessary to separately provide the control means.

[Filling method according to this embodiment (operation of packaging device)]
Next, the filling method according to the present embodiment will be described with reference to FIGS. 5 and 6 (see FIG. 4 as appropriate). The operation of the packaging device according to the present embodiment described above will also be described.
The filling method according to the present embodiment includes a detection step S2 and a determination step S3. Further, the filling method according to the present embodiment may further include a positioning step S1 before the detection step S2.
Hereinafter, each step of the filling method according to the present embodiment will be described.

(Positioning process)
The positioning step S1 is a step of positioning the position of the carton 10 in the filling direction so as to be the position indicated by the reference position information before the tip end portion of the filling object 20 enters the carton 10.
Then, in the positioning step S1, as shown in SA → SB of FIG. 5, the rear end portion of the carton 10 transferred from the right side to the left side is pressed from the rear side to the front side by the positioning means 70 to fill the carton 10. The carton 10 is positioned in the direction.

(Detection process)
The detection step S2 is a step of detecting the position information of the carton 10 after the tip end portion of the filling object 20 enters the carton 10.
Then, in the detection step S2, as shown in the SC of FIG. 5, the control is performed at the timing after the tip of the filling object 20 enters the carton 10 and at the timing when the carton 10 reaches the front of the detection means 1. The means (not shown) controls the detection means 1 to project the light L and receive the light L (remove the distance).

When there is no influence (catch, contact, etc.) when the filling object 20 enters the carton 10 (hereinafter, appropriately referred to as “normal case”), the state as shown in FIG. 4 (1) in the detection step S2. The detection means 1 detects the position information of the carton 10. It should be noted that the position information in this normal case and the "reference position information" recorded in the determination means 2 match.
On the other hand, when the influence of the filling object 20 entering the carton 10 is large (hereinafter, appropriately referred to as “when a problem occurs”), the detection means 1 is in the carton 10 in the state shown in FIG. 4 (2). Detect location information.

In the detection step S2, in order to accurately calculate the “change amount of the carton position” in the determination step S3 described later, the position information of the carton 10 of the “reference position information” is obtained from the side surface portion 13 as shown in FIG. 4 (1). In the case of the information on the position of the distance Mb, the detection means 1 also detects the information on the position of the distance Mb from the side surface portion 13.
The distance Mb is not particularly limited, but is preferably 50 mm or less, more preferably 30 mm or less, in order to appropriately detect the amount of change in the position of the carton 10.

(Judgment process)
The determination step S3 includes "position information" of the carton 10 after the tip of the filling object 20 enters the carton 10 and "reference position information" of the carton 10 before the filling object 20 enters the carton 10. , And when the amount of change in the position of the carton 10 in the filling direction is equal to or greater than a predetermined amount, it is a step of determining that a defect has occurred during filling.

In the determination step S3, the determination means 1 receives the "position information" (for example, the state information shown in FIG. 4 (2)) received from the detection means 1 and the "reference position information" (reference position information) recorded in the determination means 2. For example, the state information shown in FIG. 4 (1) is compared, and when the amount of change Ma of the position of the carton 10 in the filling direction is equal to or more than the above-mentioned predetermined amount, it is determined that a defect has occurred during filling.

In the determination step S3, when two "position information" are acquired by the two detection means 1 as shown in FIG. 5, if at least one of the change amounts Ma is equal to or more than the above-mentioned predetermined amount, a defect at the time of filling occurs. Judge that it has occurred.

(Other processes)
After the detection step S2, the carton 10 is completely filled with the filling target 20 (the state of SD in FIG. 5), and the carton 10 is assembled into a box body so that the filling target 20 is packaged by the carton 10. Become.

[Effects of packaging device and filling method according to this embodiment]
Next, the effects of the packaging device and the filling method according to the present embodiment will be described with reference to FIGS. 1 to 6.

In the series of processes of Sa → Sb → Sc → Sd by the conventional packaging device B shown in FIG. 2, there is a possibility that the filling object 20 and the carton 10 may come into excessive contact with each other in the Sc state. In this Sc state, when excessive contact between the filling object 20 and the carton 10 as shown in FIG. 3 occurs, the flap 22d of the package 22 which is the filling object 20 and the tip end portion (side surface portion) of the carton 10 The end portion of 13 and the side flap 13a) will be damaged. Then, with the conventional packaging device B shown in FIG. 2, it is impossible to appropriately detect the above situation.
By including the detection means 1, the packaging device A according to the present embodiment can detect the position information of the carton 10 after the tip of the filling object 20 has entered the carton 10, and includes the determination means 2. Thereby, the "position information" detected by the detecting means 1 and the "reference position information" recorded in the determining means 2 can be compared, and the amount of change in the position of the carton 10 in the filling direction can be obtained. As a result, according to the packaging device A according to the present embodiment, when the obtained amount of change is equal to or more than a predetermined amount, excessive contact between the filling object 20 and the carton 10 as shown in FIG. 3 occurs. It is possible to make a judgment, and it is possible to appropriately detect the occurrence of a defect during filling.

Further, the packaging device A according to the present embodiment is provided with the positioning means 70, so that the position of the carton 10 is positioned at the position indicated by the "reference position information" before the tip of the filling object 20 enters the carton 10. can do. As a result, according to the packaging device A according to the present embodiment, it is possible to correct in advance the deviation of the carton 10 during transfer before the filling object 20 enters the carton 10, and the filling object 20 becomes the carton 10. It is possible to accurately determine the degree of influence (catch, contact, etc.) when entering, and it is possible to more appropriately detect the occurrence of defects during filling.

By including the detection step S2, the filling method according to the present embodiment can detect the position information of the carton 10 after the tip of the filling object 20 has entered the carton 10, and includes the determination step S3. Therefore, the "position information" detected in the detection step S2 and the "reference position information" recorded in the determination means 2 can be compared, and the amount of change in the position of the carton 10 in the filling direction can be obtained. As a result, according to the filling method according to the present embodiment, when the obtained amount of change is equal to or more than a predetermined amount, it is determined that excessive contact between the filling object 20 and the carton 10 as shown in FIG. 3 has occurred. It is possible to appropriately detect the occurrence of defects during filling.

Further, the filling method according to the present embodiment is provided with the positioning step S1 to position the position of the carton 10 at the position indicated by the "reference position information" before the tip of the filling object 20 enters the carton 10. be able to. As a result, according to the filling method according to the present embodiment, the deviation during transfer of the carton 10 before the filling target 20 enters the carton 10 can be corrected in advance, and the filling target 20 enters the carton 10. It is possible to accurately determine the degree of influence (catch, contact, etc.) at the time, and it is possible to more appropriately detect the occurrence of defects during filling.

[Modified example of packaging device and filling method according to this embodiment]
The packaging device A shown in FIGS. 1 and 5 has a configuration in which two detection means 1 are provided, but one may be used.
When the packaging device A is configured to include one detecting means 1, the distance is detected at the timing when one of the two locations having a distance Mb inward from the side surface portion 13 of the carton 10 passes in front of the detecting means 1 ( That is, it may be detected once for one carton 10), or the distance may be detected at two timings when the two points pass in front of the detection means 1 (that is, 2 for one carton 10). (Detected times).
If the configuration includes two detection means 1 or one detection means 1 but detects the distance twice for one carton 10, only one of the left and right sides of the carton 10 is the opposite side (filling opposite side). Even in the case where the change is large (on the rear side of FIG. 5), it can be appropriately determined that a problem has occurred.

In the packaging device A shown in FIG. 5, the positioning means 70 is integrally configured with the carton guide 7, but the positioning means 70 may be configured as a separate body from the carton guide 7.

Regarding the packaging device A shown in FIG. 5, the transfer speed from the right side to the left side of the carton 10, the transfer lane 3, the transfer guide 4, and the transfer means 5 and the transfer speed from the front side to the rear side of the transfer means 5 are appropriately set. Just do it.
Further, the packaging device A shown in FIG. 5 has a configuration in which the carton 10 and the like are transferred from the right side to the left side, but may be configured to transfer the carton 10 and the like from the left side to the right side.

The size and the like of each member of the packaging device A shown in FIG. 1 may be changed as appropriate. For example, the width of the transfer lane 3 in FIG. 1 in the left-right direction may be changed according to the size of the carton 10 to be used. Further, in order to guide the filling object 20 more appropriately, the width of the transfer guide 4 in FIG. 1 in the vertical direction may be widened, or a plurality of transfer guides 4 may be provided in the vertical direction.

It should be noted that the present embodiment is described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the configurations described. Further, it is possible to add / delete / replace a part of the configuration of the present embodiment with another configuration.
In addition, the above-mentioned mechanism and configuration show what is considered necessary for explanation, and do not necessarily show all the mechanisms and configurations in the product.

A Packaging device 1 Detection means 2 Judgment means 3 Transfer lane 4 Transfer guide 5 Transfer means 6 Carton lane 7 Carton guide 10 Carton 11 Bottom part 11a, b Bottom flap 12 Top surface part 12a, b Top surface flap 13 Side part 13a, b Side surface Flap 14 Connecting surface 20 Filling object (multiple containers, a group of containers packaged in a package)
21 Container 22 Package 22a Top surface 22b Bottom surface 22c Side surface 22d Sleeve 70 Positioning means S1 Positioning process S2 Detection process S3 Judgment process

Claims (4)

A packaging device that fills a carton with multiple containers.
A detection means for detecting the position information of the carton after the tips of the plurality of containers have entered the carton, and
The position information is compared with the reference position information of the carton before the plurality of containers enter the carton, and the amount of change in the position of the carton in the filling direction for filling the plurality of containers is equal to or more than a predetermined amount. If this is the case, a means for determining that a problem has occurred during filling, and
A packaging device equipped with. The packaging device according to claim 1, further comprising a positioning means for positioning the position of the carton in the filling direction so as to be the position indicated by the reference position information before the tips of the plurality of containers enter the carton. .. The packaging device according to claim 1 or 2, wherein the detection means is a photoelectric sensor installed at a predetermined distance from the carton on the side opposite to the side for filling the plurality of containers. The plurality of containers are provided by a packaging body including a top surface portion that covers the top surfaces of the plurality of containers, a bottom surface portion that covers the bottom surfaces of the plurality of containers, and a pair of side surface portions that cover both sides of the plurality of containers. The packaging device according to any one of claims 1 to 3, which is packaged.

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