JPH11342914A - Method and device for packaging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging method which can speed up a packaging work while adopting a packaging mode wherein the bonded part of a packaging material is located in the vicinity of a corner part of an article to be packaged, and has a favorable productivity and can improve a work efficiency. SOLUTION: While a packaging material 1 and an article to be packaged are fed through a guide means 5, the packaging material 1 is guided by the guide means 5, and after winding the packaging material 1 around the article to be packaged, both ear part 1a, 1b sides of the packaging material 1 are bonded, and the article to be packaged is packaged, and in this case, both ear part 1a, 1b sides of the packaging material 1 are guided by the guide means 5 so that one ear part 1a side may protrude to the opposite side from the article to be packaged, in the vicinity of a corner part of the article to be packaged, and the other ear part 1b side of the packaging material 1 may exceed the corner part and be superposed with the one ear part la side, and both ear part 1a, 1b sides are bonded to each other by a bonding means 7 in the vicinity of the corner part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging method and a packaging apparatus for packaging an article to be packaged with a packaging material.

[0002]

2. Description of the Related Art When packaging an object to be packaged, such as a laminate obtained by folding and laminating a wet sheet, with a packaging material, a strip-shaped packaging material made of a single synthetic resin film, a composite of a synthetic resin film and an aluminum foil, or the like. Is used to pack each article to be sealed as an individual package with this packaging material.

Conventionally, in such a package, a packaging material is wound around the outer periphery of a packaged object, and then the both ends of the packaging material are joined at a lower vertical pressure seal portion of the packaged object. The packaged material and the packaging material are formed into a tubular shape at the vertical joint, and then the packaged object is inserted into the cylindrical packaging material so that the corners of the packaged material substantially coincide with the vertical joints. Some are packaged.

[0004] The former package is disclosed in Japanese Patent Application Laid-Open No. 58-16022.
It packs by the method as described in No. 0 publication. First, while continuously feeding the strip-shaped packaging material to the guide means side, the packaged material is supplied at regular intervals to the lower side of the packaging material from the same direction as the packaging material, and the guide means applies the packaging material to the upper surface of the packaged material. After guiding the packaging material from the side to the lower surface via both side surfaces and winding the packaging material around the outer periphery of the packaged object, the ears at both ends in the width direction of the packaging material are overlapped at the lower center of the packaged object, The lugs are crimped from both sides by a pair of crimping rollers and joined by a vertical crimping seal. Thereafter, the packaging material wound around the article to be packaged is sent to the post-processing means, and a gusset portion and a horizontal pressure-bonding seal portion are formed on the rear side in the feed direction of the product to be packaged. The package is cut in the horizontal direction to finish the packaged product in a sealed package.

[0005] In the latter package, while the strip-shaped packaging material is fed, the lugs are joined together at the vertical joints, and an excess portion of the outer ears is removed from the vertical joints to remove the packaging material. A tubular body is formed, and the article to be packaged is inserted into the tubular body from the same side as the feeding direction of the packaging material so that the vertical joint of the tubular body and the corner of the article to be packaged substantially coincide with each other. Then, by the same method as the former, the gusset portion and the horizontal compression seal portion are formed, and the article to be packaged is finished in a sealed package.

[0006]

In the case of the former package, a packaging method can be adopted in which the packaging material and the article to be packaged are sent together to the guide means side, so that the packaging operation can be speeded up. There is an advantage that the productivity is good and the work efficiency is improved.

However, in this package, there is a vertical pressure-sealing portion having a fixed width at the lower center, and the vertical pressure-sealing portion is folded along the lower surface of the package. The disadvantage is that the overall design of the package is impaired.

[0008] In this type of package, a product name, a trademark, a method of use, other characters, patterns, etc. are printed on the surface. Unable to print on the part hidden behind it,
There is a problem that the entire surface cannot be used as a print display surface.

On the other hand, in the case of the latter package, the vertical joint portion substantially coincides with the corner portion of the article to be packaged, and extra ears are removed, so that the design in the former case is reduced. There is an advantage that there is no problem and that substantially the entire surface of the package can be used as the printed display surface.

However, in the latter case, the packaging material is once joined in a tubular shape, and then the packaged material is inserted into a predetermined position in the tubular packaging material and packaged. It is not possible to send the packages together with the guide means at high speed. For this reason, it is necessary to control the feeding of the packaging material in consideration of the insertion time of the article to be packaged, and reduce the feeding speed of the packaging material or temporarily stop the feeding after the packaging material is formed into a cylindrical shape. By such means, the article to be packaged is inserted into the cylindrical body of the packaging material.

Therefore, in the latter case, it is very difficult to speed up the packaging operation as compared with the former case, and there is a problem that productivity is poor and work efficiency is reduced.

The present invention has been made in view of such conventional problems,
While the latter packaging form, in which the joint of the packaging material is located near the corner of the packaged object, the packaging work can be speeded up as in the former packaging form, and the productivity can be improved and the work efficiency can be improved. It is an object of the present invention to provide a method and a packaging device that can be used in the packaging method.

[0013]

SUMMARY OF THE INVENTION The method of the present invention relates to a packaging material.
After the packaging material 1 is guided by the guiding means 5 and wound around the packaging material 3 while feeding the packaging material 1 through the guiding means 5, the both ears 1a, 1b of the packaging material 1 are fed. At the time of packaging the package 3 by joining the sides thereof, one ear 1a side of the packaging material 1 protrudes in the opposite side to the package 3 near the corner 3a of the package 3; The guide means 5 guides the both ears 1a and 1b sides of the packaging material 1 so that the other ear 1b side of the packaging material 1 overlaps the one ear 1a side beyond the corner 3a. The two ears 1a and 1b are joined together by joining means 7 near the corner 3a.

Further, the apparatus of the present invention includes a packaging material supply means 2 for continuously supplying packaging material 1, a packaging material supply means 4 for supplying packaging material 3, and a packaging material supply means 4 for supplying the packaging material 1.
A guide means 5 for wrapping the packaging material 1 and guiding the packaging material 1 so that the both ears 1a and 1b sides of the packaging material 1 overlap with each other, and a joining means for joining the two ears 1a and 1b sides of the packaging material 1 to each other The guide means 5 comprises: a first guide portion 16 for guiding an intermediate portion in the width direction of the packaging material 1 along the article 3 to be packaged; and one ear portion 1a of the packaging material 1 A second guide portion 17 for guiding the package 3 from the corner 3a of the package 3 to the side opposite to the package 3 and the other ear 1b side of the package 3 correspond to the corner 3a. A third guide portion for guiding the first ear portion 1a so as to overlap with the first ear portion 1a.
18 and.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a packaging method and a packaging apparatus according to the present invention will be described below in detail with reference to the drawings.

FIGS. 1 to 8 illustrate a first embodiment of the present invention. FIG. 1 shows an outline of the entire packaging apparatus. As shown in FIG. 1, this packaging apparatus comprises a packaging material supply means 2 for continuously supplying a packaging material 1 and a packaged substance for supplying a packaged object 3. Supply means 4; guide means 5 for wrapping the packaging material 1 around the outer periphery of the article 3 to be packaged and guiding the packaging material 1 so that the ears 1a and 1b of the packaging material 1 overlap; Joining means 7 for joining the two ears 1a, 1b together,
A feeding means 8 for nipping the wound and bonded packaging material 1 together with the packaged object 3 and feeding it in the direction of arrow A, and after performing post-processing for finishing the packaged material 12 as a sealed package 12 for each packaged object 3 It comprises a processing means 9 and a take-out means 13 for taking out the package 12 after passing through the post-processing means 9.

As the packaging material 1, an appropriate material such as a single synthetic resin film or a composite of a synthetic resin film and an aluminum foil is used. However, this packaging material 1
Is the type of joining by the joining means 7 at the subsequent stage, and the post-processing means
Needless to say, in consideration of the cutting method or the like by the method 9, a material capable of performing a predetermined operation by the joining means 7 and the post-processing means 9 is selected.

The article to be packaged 3 is, for example, a sanitary napkin, a panty liner, a wet sheet, etc., folded and laminated in a cubic or rectangular parallelepiped shape, but may be a flat one or the like.
Any shape can be used as long as it has.

As shown in FIG. 8, the packaging body 12 is formed by winding the packaging material 1 around the outer periphery of the packaged object 3 and placing both ends of the packaging material 1 in the winding direction at the corners 3a of the packaged object 3. At the same time, the gusset portion 10 and the horizontal pressure-bonding seal portion 11 are formed on the packaging material 1 on both sides of the article 3 to be sealed, and are finished in a sealed state.

The packaging material supply means 2 is a packaged material supply means.
The packaging material 1 is disposed at a predetermined feed speed from a raw roll 14 wound in a roll shape and disposed below the guide material 5 and a guide roller 15 for tension adjustment. Then, it is continuously supplied to the guide means 5 side.

The packaged article supply means 4 is constituted by a conveyor or the like which rotates continuously in synchronization with the feed speed of the packaged material 1, and guides the packaged articles 3 at predetermined intervals from the same side as the packaging material 1. Supply to the 5 side. The package supply unit 4 may rotate intermittently and supply the package 3 to the guide unit 5 at predetermined intervals in synchronization with the feeding speed of the packaging material 1.

As shown in FIGS. 2 to 5, the guide means 5 includes a first guide portion 16 for guiding an intermediate portion in the width direction of the packaging material 1 along the article 3 to be packaged, and one of the packaging materials 1. A second guide portion 17 for guiding the ear 1a of the package 3 so that it protrudes from the corner 3a of the package 3 to the opposite side to the package 3, and the other ear 1b of the package 3 forms the corner 3a. And a third guide portion 18 for guiding so as to overlap with one ear portion 1a side,
The packaging material 1 is arranged so as to be displaced from the center in the width direction of the packaging material 1 toward the second guide portion 17 with respect to the packaging material supply means 2 according to the dimensions of the packaged object 3.

The first guide portion 16 includes a lower surface guide portion 19 for guiding the packaging material 1 along the lower surface of the packaged object 3, and the packaging material 1 along the packaged object 3 from both left and right sides of the lower surface guide portion 19. And a pair of left and right side guides 20 and 21 for guiding the sheet metal, and is integrally formed by bending a sheet material such as a sheet metal material into a U-shaped cross section so that the upper side is open. The first guide 16 may be divided into two parts, left and right, or the lower guide 19 and a pair of side guides.
20, 21 may be divided into three.

The lower surface guide portion 19 is disposed substantially horizontally, and its guide start end portion 19a for the packaging material 1 is substantially perpendicular to the feeding direction of the packaging material 1 so that the packaging material 1 does not meander left and right. I have. Each side guide section 20 and 21 is a bottom guide section 19
Upright from the left and right sides to the upper side, and guide start ends 20a, 21a of the side guides 20, 21 for the packaging material 1.
The lower surface guide portion 19 moves in the feeding direction of the package 3
From the upper side so as to gradually project upward.

The second guide portion 17 is configured to bend in a substantially horizontal direction from the upper end thereof to the outside so as to protrude from the one side guide portion 20 to the opposite side to the article 3 to be packaged. The guide start end 17a of the second guide portion 17 with respect to the packaging material 1 is moved from the end of the guide start end 20a of the one side guide portion 20 to the object 3 to be packaged.
In the feed direction, and gradually project sideways.

The third guide portion 18 projects from the other side guide portion 21 toward the second guide portion 17 along the upper surface of the article 3 to be packaged, and extends in a substantially horizontal direction from the upper end side of the other side guide portion 21. It is configured to be bent. The guide start end 18a of the third guide 18 for the packaging material 1 is the guide start end of the other side guide 21.
From the end of 21a, it is inclined so as to gradually project to the side as it moves in the feed direction of the packaged object 3.

The projecting end of the third guide portion 18 is connected to the second guide portion 17.
The second guide portion 17 and the third guide portion 18 are slightly overlapped with each other so that the two ears 1a and 1b sides of the packaging material 1 can pass with the top and bottom overlapped therebetween. Gap B
In close proximity.

Although the second guide portion 17 and the third guide portion 18 are formed integrally with the first guide portion 16, each of the first guide portion 17 and the third guide portion 18 is provided separately.
It is also possible to separate from 16 and configure separately.

An opening 22 is formed in the second guide portion 17 and the third guide portion 18 near the corner 3a of the article 3 to be packaged, and the joining means 7 is disposed in the opening 22. Although the opening 22 has a long hole shape along the feeding direction of the packaging material 1, the opening 22 may be provided in a notch shape from the end side to the start end side of the second guide portion 17 and the third guide portion 18. .

The joining means 7 is of a welding / fusing type, and is shown in FIG.
As shown in FIG. 6A and FIG.
A heating element 24 is formed in a curved shape, and the heating element 24 is pressed against the ears 1a, 1b of the packaging material 1 from above in the opening 22, and the heat thereof causes the ears 1a, 1b of the packaging material 1. Side to be packaged
3 is welded in the vicinity of the corner 3a to form the vertical joint 6 in the packaging material 1 and, at the same time, remove the surplus portion 1c of the ears 1a, 1b by fusing it in a band shape. Heating element 24
Is composed of a nichrome wire and other heating wires.

As shown in FIG. 6B, a floating member 22a surrounding the opening 22 may be attached to the second guide member 17 on the side corresponding to the first guide member. When the floating member 22a is provided on the second guide member 17 as described above, the ear portions 1a and 1b of the packaging material 1 are connected to the second guide member by the floating member 22a.
It can be guided from 17 to the first guide member side. The floating member 22a is suitably made of a stainless steel round bar having a diameter of about 1 to 3 mm. The floating member 22 a may be provided in the opening 22 in the lateral direction before and after the feeding direction of the packaging material 1.

The feeding means 8 is constituted by a pair of upper and lower conveyors or the like which rotate continuously in the feeding direction of the packaging material 1, and holds the packaging material 1 wound around the packaging material 3 together with the packaging material 3 from both upper and lower sides. Then, the packaging material 1 is fed with an appropriate tension applied. One of the upper and lower conveyors is urged to the other side by a spring or the like.

The post-processing means 9 forms and seals the gusset part 10 and the horizontal compression seal part 11 on the packaging material 1 wound around the article 3 to be packaged.
Is to be cut. Note that the post-processing means 9
Depending on the type of the article to be packaged 3, one having no sealing function may be used.

[0034] In the packaging apparatus having the above configuration, the article to be packaged 3
Are individually packaged with the packaging material 1 to produce the package 12 in the following order.

First, the leading end side of the packaging material 1 fed from the packaging material supply means 2 is set to a state in which it can be packaged by passing it through the guide means 5, the feeding means 8 and the like, and thereafter the packaging operation is started. When packaging, the packaging material is supplied from the packaging material supply means 2.
1 is fed out and supplied to the guide means 5 side, and in synchronization with the supply of the packaging material 1, the packaged articles 3 are sequentially supplied from the packaged article supply means 4 to the guide means 5 at predetermined intervals.

Then, on the guide means 5 side, the first guide portion 16 guides the packaging material 1 along the lower surface guide portion 19 and the pair of side surface guide portions 20 and 21, and the packaging material guided by the first guide portion 16. The package 3 from the package supply means 4 is placed on the material 1. In this state, the package 1 and the package 3 as shown in FIG.
3 are sent together in the direction of arrow A.

As the packaging material 1 moves in the direction indicated by the arrow A, the guide starting ends 20a, 21a of the side guides 20, 21 gradually rise up the packaging material 1 on both sides of the article 3 to be packaged. Then, the packaging material 1 is wound from the lower surface of the packaged object 3 to the left and right sides.

When the packaging material 1 rises along the side surface of the packaged object 3 on one side guide portion 20 side, the guide start end portion 17a of the second guide portion 17 wraps the one ear portion 1a of the packaging material 1 Thing 3
Is guided from the vicinity of the corner 3a while being bent outward, and the one ear 1a side is projected outward.

When the wrapping material 1 rises along the object 3 on the other side guide portion 21, the guide start end 18a of the third guide portion 18 wraps the other ear 1b of the wrapping material 1 on the other side 1b. Thing 3
This packaging material is guided while bending along the top side of
1 is wound around the top side of the package 3. Then, after the packaging material 1 is wound around the upper surface side of the article 3 to be packaged, the other ear 1b side of the packaging material 1 is further guided by the third guide portion 18 in the projecting direction, and the other ear 1b is covered. The package 3 is projected to the one ear 1a side beyond the corner 3a, and the other ear 1b is superimposed on the upper side of the one ear 1a.

Then, the two guides 17 and the third guide 18 are used for A in a state where the both ears 1a and 1b of the packaging material 1 are vertically stacked.
While being guided in the direction of the arrow, the heating element 24 of the joining means 7 is pressed against the both ears 1a and 1b from above, and this heating element
24 heats the both ears 1a and 1b into the corners 3a of the package 3
At the same time, the packaging material 1 wound around the package 3 is joined at the vertical joint 6 near the corner 3a of the package 3, and at the same time, the lugs 1a, Cut and remove the excess part 1c on the 1b side.

When the process of guiding the packaging material 1 by the guiding means 5 and winding it around the article to be packaged 3 is seen, the guiding start ends 17a, 18a of the second guiding portion 17 and the third guiding portion 18 are inclined obliquely. Therefore, tension is applied to the packaging material 1 so that the packaged object 3 is pressed toward the one side guide portion 20, and the packaging material 1 is pulled to the side.

For this reason, the looseness of the packaging material 1 wound around the outer periphery of the article to be packaged 3 can be prevented, and by appropriately selecting the feeding speed of the packaging material 1 and the inclination angle of the guide start ends 17a, 18a, the packaging body 12 can be formed. It can be finished tightly in a moderate condition. Further, the heating element 24 of the joining means 7 is
Package 12
In the finished stage, the vertical joint 6 is close to the corner 3a of the article 3 to be packaged and substantially coincides with the corner 3a.

After passing through the guide means 5, the packaging material 1 is formed into a tubular shape in a state of being wrapped around the article 3 to be packaged. The post-processing means 9 forms a gusset portion 10 and a horizontal compression seal portion 11 on both front and rear sides of the article 3 to be packaged, and cuts the horizontal compression seal portion 11 of the packaging material 1 at an appropriate position.
As described above, each packaged object 3 is finished as one independent package 12, and is sequentially taken out from the take-out means 13.

In the post-processing means 9, the articles to be packaged before and after
On the 3 side, a horizontal compression seal portion 11 is formed in the packaging material 1 so that a gusset portion 10 is formed, and the packaging material 1 is cut at the center of the horizontal compression seal portion 11. In addition, the gusset part 10 and the horizontal pressure seal part 11 may be formed along the front and rear sides of the article 3 to be packaged.

FIG. 9 illustrates a second embodiment of the present invention,
As the joining means 7, a spatula-shaped or knife-shaped heat conductive plate 25 having good heat conductivity and a heating element 24 mounted on the heat conductive plate 25 are used.

Also in this case, the both ears 1a and 1b sides of the packaging material 1 can be welded and cut off by the heat of the heating element 24 via the heat conducting plate 25. Further, since it is not necessary to bring the heating element 24 into direct contact with the packaging material 1, the durability of the joining means 7 including the heating element 24 is improved.

FIG. 10 exemplifies a third embodiment of the present invention, in which the joining means 7 is constituted by an ultrasonic horn 26 and a receiving roller 27, and the ultrasonic horn 26 and the receiving roller 27 are used for packaging material from both upper and lower sides. In a state where both ears 1a and 1b are sandwiched, welding and fusing of the packaging material 1 are performed by the ultrasonic sound from the ultrasonic horn 26.

FIG. 11 exemplifies a fourth embodiment of the present invention, in which the joining means 7 is constituted by a pair of upper and lower heat generating rollers 28 and 29, and both ends of the packaging material 1 are used by the heat generating rollers 28 and 29 from both upper and lower sides. Welding and fusing of the packaging material 1 are performed with the portions 1a and 1b interposed therebetween. Each of the heat generating rollers 28 and 29 has an abacus shape.

FIG. 12 illustrates a fifth embodiment of the present invention, in which the packaging material supply means 2 is arranged above the guide means 5,
The packaging material 1 is fed downward from the packaging material supply means 2 and supplied to the guide means 5 side.

The guide means 5 is configured upside down as in the case of the first embodiment. That is, the first guide 16 is an upper surface guide that guides the packaging material 1 along the upper surface of the article 3 to be packaged.
30 and a pair of left and right side guides 20 and 21 for guiding the packaging material 1 along the article 3 to be packaged on both left and right sides of the upper surface guide 30. It is configured.

Each of the side guides 20 and 21 hangs substantially vertically downward from both left and right sides of the upper surface guide 30.
The guide start ends 20a and 21a for the packaging materials 1 of 20 and 21 are inclined downward so as to protrude downward from the upper surface guide portion 30 as they move in the feed direction of the package 3.

The second guide portion 17 is formed so as to protrude outward in a substantially horizontal direction from the lower end side of one side guide portion 20, and the third guide portion 18 is formed from the other side guide portion 21. Along the lower surface of the second guide portion 17, and the joining means 7 is disposed upwardly below these second guide portions 17.

In this case, the packaged article supply means 4 is provided close to the upper side of the third guide section 18, or the packaged article 3 is received and guided to the third guide section 18 side. It is necessary to provide a guide member.

Also in the case of this embodiment, it is possible to package the article 3 in the same manner as in the first embodiment.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments.

For example, the joining means 7 is not limited to the welding / fusing type, but may be any suitable for the material of the packaging material 1.

Further, the joining means 7 comprises the both ears 1a, 1 of the packaging material 1.
Cutting means for cutting the surplus portion 1c of the ears 1a, 1b may be provided separately from the joining means 7 so as to be dedicated to the joining on the b side.

The vertical joint 6 of the package 12 is formed by a method other than welding.
For example, they may be joined by a method such as pressure bonding or adhesion.

Further, the article to be packaged 3 is not particularly limited, and can be applied to packaging of all kinds of articles.

In the embodiment, the first guide portion 16 is used to
Since it is a rectangular parallelepiped, it is configured in a substantially U-shape whose upper or lower side is open, but the shape may be changed as appropriate according to the packaged object 3.

The second guide portion 17 and the third guide portion 18 need only protrude outward from the side guide portions 20, 21 and need not necessarily protrude in the horizontal direction.

The guide means 5 is not limited to a structure in which the plate member is bent to form the first guide portion 16, the second guide portion 17, and the third guide portion 18, but the first guide portion 16, the second guide portion 17, and The third guide portion 18 may be provided only on the start end side. Therefore, in that case, it is also possible to bend the wire or the strip, and to integrally form the starting end portion.

[0063]

According to the method of the present invention, one ear 1a side of the packaging material 1 protrudes in the vicinity of the corner 3a of the packaged object 3 on the opposite side to the packaged object 3, and the other ear of the packaging material 1 So that the part 1b side overlaps the one ear part 1a side beyond the corner part 3a,
Since the both ears 1a and 1b sides of the packaging material 1 are guided by the guiding means 5 and the two ears 1a and 1b sides are joined by the joining means 7 near the corner 3a, the joining portion 6 of the packaging material 1 is While being provided in the vicinity of the corner 3a of the article 3 to be packaged, there is an advantage that the packaging operation can be performed at high speed, the productivity can be improved, and the operation efficiency can be improved.

Further, since the both ears 1a and 1b sides are joined by the joining means 7 and the surplus portion 1c of the both ears 1a and 1b is cut off, the joining of the both ears 1a and 1b and the cutting of the surplus portion 1c are performed. Easy in one step.

Further, one ear 1a side is made to protrude to the side opposite to the packaged object 3, and then the other ear 1b side is connected to the one ear 1a.
Since the two ear portions 1a and 1b can be easily and smoothly overlapped with each other.

According to the apparatus of the present invention, the packaging material supply means 2 for continuously supplying the packaging material 1, the packaging material supply means 4 for supplying the packaging material 3, and the packaging material 1 A package provided with guide means 5 for winding and guiding the packaging material 1 so that both ears 1a and 1b sides of the packaging material 1 overlap, and joining means 7 for joining the two ears 1a and 1b sides of the packaging material 1 to each other. In the apparatus, the guiding means 5 is provided with a first guiding portion 16 for guiding the intermediate portion in the width direction of the packaging material 1 along the article 3 to be packaged.
A second guide 17 for guiding one of the ears 1a of the packaging material 1 from the corner 3a of the package 3 to the side opposite to the package 3; and the other ear of the package 3 Since the third guide portion 18 for guiding the portion 1b so as to overlap the one ear portion 1a beyond the corner portion 3a is provided, the structure of the guide means 5 can be simplified, and the joining portion 6 of the packaging material 1 can be simplified. It is very convenient to increase the speed of the packaging operation and improve the productivity while providing the near the corner 3a of the article to be packaged 3.

The first guide portion 16 includes an upper surface guide portion 30 or a lower surface guide portion 19 for guiding the packaging material 1 along the upper surface or the lower surface of the article to be packaged 3, and a left and right side of the upper surface guide portion 30 or the lower surface guide portion 19. A pair of left and right side guides 20 and 21 for guiding the packaging material 1 along the side of the article 3;
From the second guide portion 17 so as to protrude from the
Is provided, and the third guide portion 18 is provided so as to protrude from the other side guide portion 21 along the lower surface or the upper surface of the packaged object 3 toward the second guide portion 17. In the case of packaging, the packaging material 1 can be easily wound around the article 3 to be packaged, and the both ears 1a and 1b of the packaging material 1 can also be reliably guided.

Guide start ends 20a, 21a of the side guides 20, 21
Moves in the feed direction of the packaged object 3,
Or, it is inclined so as to protrude downward or upward from the lower surface guide portion 19, and the guide start ends 17a, 18 of the second guide portion 17 and the third guide portion 18 are provided.
a is inclined so as to protrude laterally from the end of the guide start end 20a, 21a of each side guide portion 20, 21 in the feed direction of the packaged object 3, so that each guide start end 17a , 18
The packaging material 1 can be smoothly guided by the a, 20a, and 21a, and the finish of the packaging body 12 can be made tight.

The first guide section 16, the second guide section 17, and the third guide section
18 are integrally formed by a plate material, and the second guide portion 17 and the third guide portion 18 are provided close to each other so that the both ears 1a and 1b sides of the article to be packaged 3 overlap and pass. The structure of the guide means 5 can be made very simple, and the both ears 1a, 1
b can be surely guided.

An opening 22 is formed in the second guide portion 17 and the third guide portion 18 near the corner 3a of the article 3 to be packaged, and the joining means 7 is disposed in the opening 22. While the two guides 17 and the third guide 18 guide the two ears 1a and 1b of the packaged object 3, the two ears 1a and 1b can be securely joined by the joining means 7.

Since the guide means 5 is arranged so as to be deviated from the center in the width direction of the packaging material 1 toward the second guide portion 17 with respect to the packaging material supply means 2, the guide means 5 is supplied from the packaging material supply means 2. The packaging material 1 can be smoothly guided by the guiding means 5.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a packaging device showing a first embodiment of the present invention.

FIG. 2 is a perspective view of a guide means side showing the first embodiment of the present invention.

FIG. 3 is a plan view of a guide unit according to the first embodiment of the present invention.

FIG. 4 is a cross-sectional view of a guide unit side according to the first embodiment of the present invention.

FIG. 5 is a cross-sectional view of a guide means side according to the first embodiment of the present invention.

FIGS. 6A and 6B are cross-sectional views of the first embodiment of the present invention, on the side of the joining means.

FIG. 7 is a perspective view of a packaging process showing the first embodiment of the present invention.

FIG. 8 is a partially cutaway perspective view of the package body according to the first embodiment of the present invention.

FIG. 9 is a cross-sectional view of a joining unit according to a second embodiment of the present invention.

FIG. 10 is a cross-sectional view of a joining unit according to a third embodiment of the present invention.

FIG. 11 is a cross-sectional view of a joining unit according to a fourth embodiment of the present invention.

FIG. 12 is a perspective view of a guide means side showing a fifth embodiment of the present invention.

[Explanation of symbols]

 1 Packaging materials 1a, 1b Ear 2 Packaging material supply means 3 Packaged material 3a Corner 4 Packaged material supply means 5 Guide means 7 Joining means 16 First guide section 17 Second guide section 18 Third guide section 19 Lower face guide Part 20,21 Side guide part 17a, 18a, 20a, 21a Guide start end 22 Opening 30 Top guide part

Claims (9)

[Claims] The packaging material (1) is guided by the guide means (5) while the packaging material (1) and the article to be packaged (3) are sent through the guide means (5). (3), the packaging material (1) is joined to the both ears (1a) (1b) side of the packaging material (1), and the packaging material (3) is packaged. One ear (1a) side of the packaging material (1) protrudes in the vicinity of the corner (3a) of the packaging material (1) on the opposite side to the article to be packaged (3), and the other ear (1b) of the packaging material (1). ) Side of the packaging material (1) by the guiding means (5) so that the side of the packaging material (1) is closer to the two ears (1a) (1b) so that the side of the packaging material (1) overlaps the one ear (1a) side beyond the corner (3a). And bonding the both ears (1a) and (1b) sides to each other in the vicinity of the corner (3a) by a joining means (7). 2. The both ears (1a) by the joining means (7).
(1b) Joining side and surplus part (1c) of both ears (1a) (1b)
2. The packaging method according to claim 1, wherein the packaging is cut. 3. The package to be packaged with the one ear (1a) side
(3) to the opposite side and then the other ear (1b)
The packaging method according to claim 1, wherein a side is overlapped with the one ear (1a) side. 4. A packaging material supply means (2) for continuously supplying a packaging material (1), a packaged material supply means (4) for supplying a packaged material (3), and the packaging material (1). Guide means (5) for wrapping the packaging material (3) around the packaging material (3) and guiding the packaging material (1) so that both ears (1a) and (1b) sides of the packaging material (1) overlap.
And a joining means (7) for joining the both ears (1a) and (1b) sides of the packaging material (1) to each other, wherein the guiding means (5) comprises the packaging material (1). ) Of the first guide portion (1) for guiding the widthwise intermediate portion along the packaged object (3).
6), and guide so that one ear (1a) side of the packaging material (1) projects from the corner (3a) of the packaged object (3) to the side opposite to the packaged object (3). The second guide part (17), and the second guide part (3) is guided so that the other ear part (1b) side of the article to be packaged (3) overlaps the one ear part (1a) side beyond the corner part (3a). A packaging device comprising: three guide portions (18). 5. The package (3) wherein the first guide portion (16) is provided with
An upper surface guide (30) or a lower surface guide (19) for guiding the packaging material (1) along the upper or lower surface of the upper surface guide (3).
0) or the packaged object from both left and right sides of the lower surface guide portion (19).
A pair of left and right side guides (20) and (21) for guiding the packaging material (1) along the side of (3), and the packaged object (3) from the one side guide (20). The second guide portion (17) is provided so as to protrude to the opposite side to the other side guide portion (21).
Along the lower or upper surface of the packaged object (3) from the second
The packaging device according to claim 4, wherein the third guide portion (18) is provided so as to protrude toward the guide portion (17). 6. A guide start end of each of said side guides (20) (21).
(20a) (21a) is inclined so as to project downward or upward from the upper surface guide portion (30) or the lower surface guide portion (19) as it moves in the feed direction of the packaged object (3), 2nd guide (1
7) and the guide start ends (17a) and (18a) of the third guide portion (18) from the end of the guide start ends (20a) and (21a) of the side guide portions (20) and (21). The packaging device according to claim 5, characterized in that the packaging device is inclined so as to protrude laterally as it moves in the feeding direction of the packaged object (3). 7. The first guide section (16) and the second guide section (1).
7) and the third guide portion (18) are integrally formed by a plate material,
The second guide portion (17) and the third guide portion (18) are provided close to each other so that the ears (1a) and (1b) sides of the packaged object (3) overlap and pass. The packaging device according to any one of claims 4 to 6, wherein: 8. The corner portion (3a) of the packaged object (3).
An opening (22) is formed in the second guide part (17) and the third guide part (18) near the opening, and the joining means is formed in the opening (22).
The packaging device according to claim 7, wherein (7) is arranged. 9. The guide means (5) is displaced from the center in the width direction of the packaging material (1) toward the second guide part (17) with respect to the packaging material supply means (2). The packaging device according to any one of claims 5 to 8, wherein: