JP2015101353A - Packing method using packing box, and packing box manufacturing device for manufacturing packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing method which does not require a step of applying heat to a film.SOLUTION: A packing box 1 which comprises a box body 2 in which a space for accommodating a packed object 11 is formed by a bottom face 20 and a plurality of side faces 21, 22 and a film 3 having elasticity and self-adhesiveness, and in which a center part 30 of the film 3 is inserted into the box body 2 and adhered to the bottom face 20, is prepared. The packed object 11 is accommodated in the box body 2 and disposed at the center part 30 of the film 3. One end side 31 of the film 3 is stretched and covers the packed object 11. Further, the other end side 32 of the film 3 is stretched and covers the packed object 11 from thereabove. One end side 31 and the other end side 32 are adhered to each other by the self-adhesiveness, and the packed object 11 is held to the bottom face 20 of the box body 2.

Description

  The present invention relates to a packing method for packing an object to be packed using a packing box having a stretchable and self-adhesive film. Moreover, this invention relates to the packaging box manufacturing apparatus which manufactures the said packaging box.

  As described in Patent Document 1, the applicant of the present application has filed a patent application relating to a packing box for packing an object to be packed. According to Patent Document 1, the packaging box is made up of a housing box for housing an object to be packed and a heat-shrinkable film having a high blocking property. The storage box has a bottom surface and a plurality of side surfaces, and a space for storing an object to be packed is formed by these. The heat-shrinkable film is inserted into the storage box, and its central part is bonded to the bottom surface of the storage box via an adhesive tape or the like.

  An operator accommodates an object to be packed in a storage box and covers the entire object to be packed with a heat shrinkable film. Next, the packaging box is passed through a shrink tunnel, and hot air is blown onto the heat-shrinkable film covering the packaged items. As a result, the heat-shrinkable film shrinks and adheres to the package, and the heat-shrinkable films adhere to each other. Thereby, the article to be packed is packaged by the heat-shrinkable film and held on the bottom surface in the storage box. Thereafter, the packaging of the article to be packed is completed by closing the storage box.

  However, the packaging method including the step of heating the heat-shrinkable film by a heating device such as a shrink tunnel cannot be used for frozen foods or non-heat resistant plastic products that do not favor heat. .

JP 2010-159078 A

  Then, this invention provides the packaging method which does not require the process of applying heat to a film. Moreover, this invention provides the packaging box manufacturing apparatus which manufactures the packaging box used when implementing the said packaging method.

In order to solve the above problems, the packaging method according to the present invention comprises a box body in which a space for accommodating an object to be packed is formed by a bottom surface and a plurality of side surfaces, and a film having stretchability and self-adhesiveness. Preparing a packaging box in which the central part of the film is inserted into the box and adhered to the bottom surface;
The packaged material is accommodated in the box and placed on the central portion of the film,
One end side of the film is stretched to cover the object to be packed, and the other end side of the film is further stretched to cover the object to be packed, and the one end side and the other end side are connected to the self-adhesive side. The packing method is characterized by adhering to each other depending on the property, and holding the packed object on the bottom surface of the box.

Moreover, the packaging box manufacturing apparatus according to the present invention manufactures a packaging box for use in the implementation of the above packaging method, and grips the one end side and the other end side of the film, A pair of gripping members that position the film above the box, and a pushing member that pushes the film into the box from above,
The pressing member is moved downward while bringing the pair of gripping members gripping the film close to each other, the film is pushed into the box, and the central portion of the film is placed on the bottom surface of the box Glue to
The holding of the film by the pair of holding members is released, the one end side of the film is hung on one of the pair of side surfaces opposed to the box, and the other end side of the film is a pair of It is hung on the other side of the side surface.

  Preferably, based on the height of the box, the width between the pair of side surfaces of the box, and the hanging length from the side surface of the film, the operation of the pair of gripping members and the push member The operation can be adjusted.

  An unwinding mechanism for unwinding the continuous film from the film roll, and a cutting member that cuts the unwound continuous film into a predetermined length to form the film.

  In the packing method according to the present invention, by using a film having stretchability and self-adhesiveness, an object to be packed can be held on the bottom surface of the box without using a heating device such as a shrink tunnel. Therefore, the packing method according to the present invention can be applied even if the packaged item is not preferably heated, such as frozen food or non-heat resistant plastic product.

It is a figure for demonstrating the packing method which concerns on this invention. It is a figure for demonstrating the packing method which concerns on this invention. It is a figure which shows the other form of the packing box used in the case of implementation of the packing method which concerns on this invention. It is a front view which shows the schematic structure of the packaging box manufacturing apparatus which concerns on this invention. It is a figure explaining operation | movement of the packaging box manufacturing apparatus which concerns on this invention. It is a figure explaining operation | movement of the packaging box manufacturing apparatus which concerns on this invention.

  Hereinafter, a packing method according to the present invention will be described with reference to the drawings.

First, in carrying out the packaging method, a packaging box 1 as shown in FIG. 1A is prepared.
The packing box 1 includes a cubic box 2 having a self-supporting property and a sheet-like film 3. The box body 2 includes a bottom surface 20 and four side surfaces (a pair of left and right side surfaces 21 and 22 in FIG. 1 and a pair of front and rear surfaces not shown), and a space for accommodating articles is formed by these. Yes. The box 2 is, for example, a corrugated cardboard sheet, and is formed by bending along a predetermined crease.

  The film 3 has elasticity, and stretches when pulled, and shrinks to return to its original shape when the tension is released. Furthermore, the film 3 has self-adhesiveness. Self-tackiness is a property in which a substance itself has repeated tackiness without using an adhesive or pressure-sensitive adhesive, and it is incidentally required that peeling is relatively easy. The film 3 having stretchability and self-adhesiveness is a film called a stretch film, a wrap film, a food packaging film, and the like, for example, such as a polyethylene resin, a vinyl chloride resin, and a polyolefin resin. It is a synthetic resin film.

  As shown in FIG. 1A, the central portion 30 of the film 3 is bonded and fixed to the bottom surface 20 of the box 2 with an adhesive 10. One end side 31 of the film 3 is hung on one side surface 21 of a pair of opposing side surfaces 21 and 22, and an end portion of the film 3 hangs outward from the upper edge of the side surface 21. The other end side 32 of the film 3 is hung on the other side surface 22, and its end portion hangs outward from the upper edge of the side surface 22. One end side 31 and the other end side 32 of the film 3 are not fixed to the box 2.

  As shown in FIG. 1B, the operator prepares the packaging box 1, and then accommodates the article 11 to be packed in the box 2 and arranges it on the central portion 30 of the film 3. The operator grasps the end of the one end side 31 of the film 3 that hangs outside the side surface 21 with one hand, stretches the one end side 31, and as shown in FIG. Cover. Next, the operator grasps the end portion of the other end side 32 of the film 3 that hangs outside the side surface 22 with the other hand, and stretches the other end side 32, with the stretched state as shown in FIG. 2B. The object to be packed 11 is further covered from above.

  As described above, since the film 3 has self-adhesiveness, the one end side 31 and the other end side 32 of the film 3 placed on the package 11 are bonded to each other at the contact surface. As a result, the article 11 is packaged on the film 3. Furthermore, since the film 3 has stretchability, each of the one end side 31 and the other end side 32 that are bonded to each other in the stretched state tends to shrink while pulling in the direction of stretching each other. Thereby, the film 3 is in close contact with the article 11 to be packed. The object to be packed 11 is held on the bottom surface 20 in the box body 2 by the adhesion of the film 3 to the object to be packed 11 and the adhesion to the bottom surface 20 of the box body 2.

  Then, the operator closes the box 2 by covering the box 2.

  According to this packing method, as described above, the object to be packed 11 can be wrapped and held with the film 3 without heating the film 3. Therefore, the packing method according to the present invention can be applied even if the object to be packed 11 is an object that is not preferable to be heated, such as frozen food or a non-heat resistant plastic product.

In addition, adhesion | attachment to the bottom face 20 of the box 2 of the film 3 is not limited to the above. As an example, the packaging box 1 as shown in FIG. 3 may be used. In the packaging box 1 of FIG. 3, the bottom surface 20 of the box body 2 includes a pair of bottom flaps 23 and 24 that are extended from the lower edges of the side surfaces 21 and 22 and bent inward, and the bottom flaps 23 and 24. The adhesive tape 25 is attached from below so as to straddle the gap formed by each notch. The central portion 30 of the film 3 enters the gap and comes into contact with the adhesive surface of the adhesive tape 25, thereby being adhered and fixed to the bottom surface 20.
Thus, what kind of thing may adhere | attach the bottom surface 20 of the box 2 of the film 3.

  Next, the packaging box manufacturing apparatus which manufactures the above-mentioned packaging box 1 is demonstrated.

  FIG. 4 shows a schematic configuration of the packaging box manufacturing apparatus 4. In the packaging box manufacturing apparatus 4, the conveyor 40 is extended in the horizontal direction (perpendicular to the paper surface of FIG. 4), and transports the box body 2 constituting the packaging box 1. A pushing member 41 for pushing the film 3 into the box 2 is installed above the conveyor 40 as will be described later. The pushing member 41 is movable in the vertical direction by the drive mechanism 42.

  The film roll 43 is set, and the continuous film 45 is unwound from the film roll 43 by the unwinding mechanism 44. A cutting member 46 is disposed on the downstream side of the unwinding mechanism 44. The cutting member 46 moves up and down by a driving mechanism (not shown), cuts the continuous film 45 unwound by the unwinding mechanism 44, and forms the film 3.

  Further, a pair of gripping members 47 and 48 are provided for gripping the film 3. The pair of gripping members 47 and 48 are independently driven by a driving mechanism (not shown). One gripping member 47 is supported in the height range between the box 2 on the conveyor 40 and the pushing member 41, and the horizontal direction (that is, FIG. 4 is movable in the direction A and the direction B), and approaches and separates from the leading end 49 of the unwound continuous film 45.

  The other gripping member 48 can be moved in the vertical direction by its drive mechanism, and can be lowered from the retracted position shown in FIG. 4 to the same height as the one gripping member 47. Further, the gripping member 48 is movable in the direction A and the direction B at the same height as the one gripping member 47 by the driving mechanism.

  Next, operation | movement of the packaging box manufacturing apparatus 4 is demonstrated. As shown in FIG. 4, the box body 2 is conveyed by the conveyor 40 and is located directly below the pushing member 41. One gripping member 47 moves in the direction A and approaches the leading end 49 of the continuous film 45 to grip the leading end 49. The gripping member 47 moves in the direction B in synchronization with the unwinding mechanism 44, and pulls the continuous film 45 in the direction B without unnecessarily stretching.

  The gripping member 47 stops once when the continuous film 45 is pulled out in the direction B from the position of the cutting member 46 by a predetermined length. And the continuous film 45 is cut | disconnected by the cutting member 46, and the one sheet | seat 3 which comprises the packaging box 1 is formed.

  By cutting the continuous film 45, the gripping member 47 grips the one end side 31 of the film 3. Further, the gripping member 47 moves in the direction B and moves the film 3 slightly. Thereby, on the guide plate 50, the end of the other end 31 of the film 3 is separated from the front end 49 of the continuous film 45 that is cut and newly formed.

  Next, the other gripping member 48 that is retracted descends between the end of the other end 32 of the film 3 and the tip 49 of the new continuous film 45 to grip the other end 32 of the film 3. To do. As a result, the one end side 31 and the other end side 32 of the film 3 are gripped by the pair of gripping members 47 and 48.

  The pair of holding members 47 and 48 holding the film 3 move in the direction B in synchronization so as not to unnecessarily stretch the film 3, and the film 3 is placed under the push-in member 41 as shown in FIG. Located above the body 2. At this time, the center of the box 2 in the direction A and the direction B (see FIG. 4), the center of the film 3, and the center of the pushing member 41 coincide.

  Then, as shown in FIG. 5B, the packaging box manufacturing apparatus 4 moves the pressing member 41 downward and presses it against the central portion 30 of the film 3 from above to push the film 3 into the box 2. The central portion 30 of the film 3 is pressed against the bottom surface 20 of the box 2 by the pushing member 41 and is bonded and fixed to the bottom surface 20 with the adhesive 10 applied in advance. As shown in FIG. 5A, the packaging box manufacturing apparatus 4 moves the pushing member 41 downward while bringing the pair of gripping members 47 and 48 close to each other when pushing the film 3. This prevents the stretchable and self-adhesive film 3 from being forcibly stretched by the pushing member 41 or being caught by the box 2 when inserted into the box 2.

  Then, as shown in FIG. 6A, by simultaneously releasing the gripping of the film 3 by the pair of gripping members 47 and 48, the one end side 31 of the film 3 is one side surface of the pair of side surfaces 21 and 22 facing the box body 2. 21, the end is hung outward, the other end 32 of the film 3 is hung on the other side 22, and the end is hung outward. Then, the pushing member 41 moves upward and comes out of the box 2. Thus, as shown in FIG. 6B, the packaging box 1 used when the above-described packaging method is performed is manufactured.

  Then, the conveyor 40 of FIG. 4 conveys the packing box 1 downstream, and positions the new box 2 under the pushing member 41. The other gripping member 48 returns to the retracted position shown in FIG. One gripping member 47 grips the leading end 49 of the continuous film 45 again and pulls it out in the direction B by a predetermined length. Hereinafter, the above-described steps are repeated to sequentially manufacture the packaging box 1.

  According to the packaging box manufacturing apparatus 4 described above, the film 3 is inserted into the box 2 along the inside of the box 2 without forcibly stretching the stretchable and self-adhesive film 3, and the center thereof The part 30 can be bonded to the bottom surface 20 of the box body 2 and the one end side 31 and the other end side 32 can be hung on the side surfaces 21 and 22 of the box body 2.

  The packaging box manufacturing apparatus 4 is provided with an operation panel (not shown). The operation panel allows the size of the box body 2 to be at least the height H of the box body 2 and the pair of side surfaces 21 and 22 as shown in FIG. 6B. Width W can be entered. Furthermore, the hanging length L from the side surfaces 21 and 22 of the film 3 in the packaging box 1 to be manufactured can also be input by the operation panel.

The packaging box manufacturing apparatus 4 adjusts the operation of the pair of gripping members 47 and 48 and the operation of the pushing member 41 based on the input information.
Specifically, the packaging box manufacturing apparatus 4 adjusts the amount by which the continuous film 45 is pulled out by the gripping member 47 based on the input information, and forms the film 3 having a length that matches the size of the box 2. Further, the packing box manufacturing apparatus 4 determines the pressing speed and the pressing amount of the pressing member 41 and the pair of gripping members 47 and 48 when the film 3 is pressed as shown in FIGS. 5A and 5B based on the input information. Adjust the movement speed and movement amount. Thereby, in any size box 2, as shown in FIG. 6B, the central portion 30 of the stretchable and self-adhesive film 3 is adhered to the bottom surface 20, and the one end side 31 and the other end side 32 are connected to the side surface 21. , 22 and can be hung.

DESCRIPTION OF SYMBOLS 1 Packing box 10 Adhesive 11 Packaged object 2 Box 20 Bottom surface 21,22 Side surface 23,24 Bottom flap 25 Adhesive tape 3 Film 30 Center part 31 One end side 32 Other end side 4 Packing box manufacturing apparatus 40 Conveyor 41 Pushing member 42 Pushing member driving device 43 Film roll 44 Unwinding mechanism 45 Continuous film 46 Cutting member 47, 48 Holding member 49 Front end 50 of continuous film Guide plate

Claims (4)

The bottom surface and a plurality of side surfaces are formed of a box body in which a space for accommodating an object to be packed is formed, and a film having stretchability and self-adhesiveness, and the center portion of the film is inserted into the box body and the bottom surface Prepare the packaging box that is glued to the
The packaged material is accommodated in the box and placed on the central portion of the film,
One end side of the film is stretched to cover the object to be packed, and the other end side of the film is further stretched to cover the object to be packed, and the one end side and the other end side are connected to the self-adhesive side. The packing method is characterized by adhering to each other depending on the property, and holding the packed object on the bottom surface of the box. Packaging for manufacturing a packaging box comprising a box having a bottom surface and a plurality of side surfaces and a film having stretchability and self-adhesiveness, wherein the central portion of the film is inserted into the box and adhered to the bottom surface A box manufacturing device,
A pair of gripping members that grip one end side and the other end side of the film to position the film above the box, and a pushing member that pushes the film into the box from above,
The pressing member is moved downward while bringing the pair of gripping members gripping the film close to each other, the film is pushed into the box, and the central portion of the film is placed on the bottom surface of the box Glue to
The holding of the film by the pair of holding members is released, the one end side of the film is hung on one of the pair of side surfaces opposed to the box, and the other end side of the film is a pair of A packaging box manufacturing apparatus, wherein the apparatus is hung and hung on the other side surface.   Based on the height of the box body, the width between the pair of side surfaces of the box body, and the length of the film hanging from the side surface, the operation of the pair of gripping members and the operation of the pushing member are adjusted. The packaging box manufacturing apparatus according to claim 2, which is possible.   The unwinding mechanism which unwinds a continuous film from a film roll, and the cutting member which cut | disconnects the unwound continuous film to predetermined length, and forms the film, The said 2 or Claim characterized by the above-mentioned. Item 4. A packaging box manufacturing apparatus according to item 3.

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