JP2889968B2 - Packaging method and device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging method and an apparatus therefor, and more particularly, to a packaging bag body in which front and rear ear portions are bent along a bottom surface. The present invention relates to a packaging method capable of fully automatically manufacturing a packaging bag body having an external shape in which a label (band) is wrapped around and having an added value, and a packaging apparatus for suitably performing the packaging method. .

2. Description of the Related Art Conventionally, as a packaging form of an object to be packaged, such as Japanese confectionery or Western confectionery, which emphasizes elegance and aesthetics, ears formed before and after the packaging bag are bent along the bottom surface and the packaging bag is formed. BACKGROUND ART A body in which a band having a predetermined width is wound around a body is known.
Conventionally, in order to obtain such a packaging form, the front and rear ears of a packaging bag automatically packaged by a bag making and filling machine are bent along the bottom surface of the bag. Next, a band-shaped paper or the like separately prepared is wound around a packaging bag, and both ends of the band are pasted together with glue or tape. In this case, in the present situation, all of the above-mentioned operations rely on manual labor, and there is a drawback that the production efficiency is remarkably reduced and the production cost is increased due to labor costs.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention has been proposed to solve the problem suitably, and means for fully automatically manufacturing a packaging bag having an appearance shape as if a belt material is wound. The purpose is to provide.

Means for solving the problem In order to overcome the above-mentioned problems and appropriately achieve the intended purpose, the present invention is to form a strip-shaped film fed from a raw roll into a tubular shape, and to obtain the obtained tubular film. After supplying the article to be packaged, in a method of manufacturing a packaging bag body by end sealing and cutting this tubular film before and after sandwiching the article to be packaged, In accordance with a pitch corresponding to one wrapping length of the band-shaped film on the surface, when the cylindrical film is end-sealed and cut, it extends over both ears formed in required dimensions before and after the packaging bag body, and A first label having a predetermined width dimension set to a length extending to the vicinity of the film cut end beyond the bent portion when the ear portion is bent at a portion where the fold is given along the packaging bag body, The center in the width direction of the label Affixed in advance so as to match the feeding center of the band-shaped film, When a tubular film formed from the band-shaped film was subjected to end sealing and cutting before and after sandwiching the broadcasted object, a packaging bag obtained thereby. In the part that becomes the ear of the body,
A fold that is parallel to the end seal and that allows bending to the opposite side to the label attachment surface is provided, and ears formed before and after the packaging bag body are formed at the portions where the fold is provided. The label is bent together with the label on the side opposite to the surface to which the label is attached, and each ear is fastened to the packaging bag so that the first label faces the outer surface, and both ears of the packaging bag are bent. On the side
A second label sized so as to extend between the ends of the first label facing the both ears is commonly attached to both ears.

Another preferred embodiment of the present invention is to form the belt-shaped film fed from the raw roll into a tubular shape, and to wrap the packaged material at predetermined intervals in the obtained tubular film. In a packaging device adapted to be supplied, a pair of end sealers vertically opposed to each other with the tubular film interposed therebetween is provided, and the sealer seals in a direction intersecting a feeding direction before and after sandwiching an object to be packaged with the tubular film. And an end seal device in which the seal interval is set so that ears of a required size are formed before and after the article to be packaged, and close to a feeding path of a band-shaped film fed from the material roll. The first label is disposed on the surface that is to be the surface when the band-shaped film is formed into a tubular shape in accordance with a pitch corresponding to one packaging length of the band-shaped film, and the width direction center of the first label is the band-shaped. fill A first label affixing device that intermittently supplies and affixes so as to match the feeding center of the end sealer; and a lifter that is disposed downstream of the end seal device and pushes up the obtained packaging bag body. Folding means for bending the front and rear ears of the packaging bag body pushed up by the lifter downward; and an adsorption device arranged above the lifter to suck and hold the packaging bag body pushed up by the lifter in a hanging state. A rear ear portion of the packaging bag body, which is disposed at required intervals on a transfer member that circulates and runs above the lifter and is held by the suction device, is folded along the lower surface of the bag body, and the packaging bag body is removed. A transfer mechanism provided with an attachment for folding the front ear portion along the lower surface of the bag body in cooperation with the folding means while transferring while scooping received; A second label sticking device that is provided downstream of the transfer direction and that sticks a second label for fastening the both ears to the bag on the lower surface of the package bag transferred by the transfer mechanism. It is characterized by having done.

EXAMPLES Next, the packaging method according to the present invention will be described below with reference to the accompanying drawings, with reference to the attached drawings, in relation to a device capable of suitably performing the method. For convenience of description, “front and rear” refers to front and rear in the transport direction of the packaging bag.

FIG. 1 is a schematic view showing the configuration of the first half of a packaging apparatus 1 according to an embodiment, in which a package 3 is filled by a horizontal bag making and filling machine 2 constituting a main part of the first half. The packaging bag body 16 is manufactured. That is, the article supply conveyor 4 located at the most upstream side of the horizontal bag making and filling and packaging machine 2 is provided with attachments 6 for article positioning provided on the endless chain 5 at a predetermined pitch.
It is configured to be pushed out at a predetermined interval for each individual contact and to be continuously supplied to the bag making device 7 located on the downstream side.

Above the article supply conveyor 4, a strip film 8a
Is rolled around a required diameter and is rotatably disposed. The belt-shaped film 8a drawn from the raw roll 8 is nipped by a pair of feeding rollers 9, 9 and fed to a bag making machine 7 disposed downstream of the article supply conveyor 4. As shown in FIG. 4 (b), the tubular film 8b formed into a tubular shape through the bag making device 7 has its overlapping surface in the longitudinal direction in a pair of feed rollers 80, 80.
(Only one of them is shown in the drawings), and is fed to the downstream side, and a center seal is provided by a pair of sealing rollers 81, 81 (only one is shown in the drawings).

A first label sticking device 82 is provided at a position close to the feeding path of the strip film 8a drawn from the raw roll 8, and the first label 83 having a predetermined size is provided by the sticking device 82.
Is attached to the front side of the belt-like film 8a (the surface that becomes the front side when the packaging bag body 16 is manufactured using the film 8a) at predetermined intervals according to the film pitch corresponding to one packaging length. . That is, as shown in FIG.
A roll body 85 formed by winding a long band body 84 with a predetermined diameter is rotatably disposed at an appropriate position.
Labels 83 are releasably attached at predetermined intervals. As is clear from FIG. 5, the width of the first label 83 is the width when the band-shaped film 8a is formed into a tubular shape by the bag-making device 7 (dimension in a direction intersecting the feeding direction). 1 /
It is set shorter than 2. The length dimension of the first label 83 is set to be equal to or less than one packaging length of the band-shaped film 8a.

That is, when the first label 83 faces an end seal portion described later, there is a possibility that an end seal failure occurs. Therefore, as shown in FIG. 5 (a), when the packaging bag 16 is manufactured by the packaging machine 2. In addition, the first label 83 is
5B, the ears 16a and 16b are bent along the packaging bag body 16 as shown in FIG. 5B. When the film is bent at a portion where the film is bent, the film extends beyond the bent portion to the vicinity of the cut end of the film and does not reach both end seal portions.

The belt 84 pulled out from the roll body 85 is configured to be intermittently wound around a winding roller 87 via a plurality of guide rollers 86. The belt 84 guided by the guide roller 86 faces on the movement trajectory of the feeding center of the belt-shaped film 8a during the drawing, and the belt 84 is guided.
The first label 83 which has been peeled off is attached with its center in the width direction aligned with the feeding center of the band-shaped film 8a (fourth label 83).
FIG. (A)).

On the downstream side of the sealing rollers 81, 81, as shown in FIG. 1, there is provided an end sealing device 20 for performing end sealing and cutting before and after sandwiching the packaged object 3 on a cylindrical film 8b provided with a center seal. It is arranged. End seal device
As shown in FIG. 4 (c), 20 includes a pair of end sealers 24, 24 facing each other up and down, and sandwiches the packaged object 3 of the tubular film 8b under the cooperation of the two sealers 24, 24. End sealing and cutting are performed before and after. Thereby, the packaging bag body 16 filled with the article to be packaged 3 is manufactured. By setting the packaging length of the tubular film 8b to be longer than the dimension of the packaged object 3, that is, the separation distance between the end seal portions, the packaged object 3 is filled as shown in FIG. The length of the ear portions 16a and 16b formed before and after the torso portion 16c is set to be long.

On both front and rear sides of the end sealers 24, 24, as shown in FIG.
22 and 22 are provided, respectively, and a folding habit is formed between the body 16c of the packaging bag body 16 and the front and rear ears 16a and 16b by the cooperation of the two folding habit forming tools 22 and 22. That is, the upper end sealer
A concave portion 22a is formed on the lower facing surface of the bending habit forming tool 22 provided on the lower end sealer 24, and a convex portion 22b is formed on the upper facing surface of the bending habit forming tool 22 provided on the lower end sealer 24. When the end sealers 24, 24 come into contact with each other, the opposing concave portions 22a and convex portions of the pair of upper and lower folding habit forming tools 22, 22 form a pair.
22b is designed to be engaged. In addition, since the fold forming tool 22 is heated via the end sealer 24, the fold can be imparted to the tubular film 8b at the meshing portion between the concave portion 22a and the convex portion 22b.

That is, when end sealing and cutting are performed on the tubular film 8b, the crease forming tools 22, 22, which are disposed before and after the end sealers 24, 24, use the ear portions 16a, 1 before and after the packaging bag body 16.
A folding habit is given to 6b (see FIG. 1). Therefore, as described later, the ear portions 16a and 16b can be reliably and neatly bent along the folding habit. In this case, it is desirable to set the shape of the fold forming tool 22 at the position where the first label 83 is attached to the cylindrical film 8b so that the fold is not formed.

The packaging bag 16 manufactured through the end sealing device 20
As shown in FIG. 2, an ear-folding device 10 is provided downstream of the discharge conveyor 12 for discharging the package bag.
The 16 ear portions 16a, 16b are bent along the lower surface (bottom surface) of the bag body 16, and the both ear portions 16a, 16b are fixed.

That is, the conveyor 14 is located downstream of the discharge conveyor 12.
The packaging bag body 16 transferred from the discharge conveyor 12 to the transfer conveyor 14 is supplied to a lifter 18 disposed downstream of the transfer conveyor 14 (see FIG. 4 (d)).

The lifter 18 has a support 26 on which the packaging bag body 16 is placed.
And an elevating bar 28 suspended from the bottom of the support 26, and an elevating mechanism 30 connected to the elevating bar 28. Then, as shown in FIG. 3, the support base 26 is
The holding section 32 on which the body section 16c is placed, and a pair of ear folding members 34, 34 disposed at the front and rear ends of the holding section 32, and a dimension in a direction intersecting the transfer direction of the holding section 32. Is set shorter than the dimension of the folding member 34. Further, the upper end of the ear-folding member 34 protrudes above the mounting surface of the holding table 32, and the upper end of the folding member 34 is held in a state where the body 16c of the packaging bag body 16 is mounted on the holding table 32. Is configured to abut on the lower surface (the portion with the above-mentioned fold) between the trunk 16c and the ear 16a (16b) (see FIG. 4 (e)). Then, by the folding means including the folding member 34 and an ear bending guide 55 described later, the ear 16
a (16b) is bent downward (see FIG. 4 (f)).

Below the support 26, a lifting bar is mounted on a base frame (not shown).
A support plate 36 extending in parallel with 28 is provided.
, Two pairs of guide rollers 38, 38, which are paired in a left-right relationship with respect to the elevating bar 28, are disposed vertically separated by a predetermined distance, and the elevating bar 28 is vertically guided by the four guide rollers 38. To go up and down. As shown in FIG. 3, long grooves 28a are formed on both sides of the lifting bar 28 facing the guide roller 38 along the longitudinal direction.
The guide roller 38 is slidably fitted in the long groove 28a.

As shown in FIG. 2, near the lower end of the elevating bar 28, the upper end of a rod 40 constituting the elevating mechanism 30 is pivotably supported. Below the support plate 36, there is provided an arm 44 in which one end in the longitudinal direction is rotatably supported on a pin 42 protruding from the base frame.
The lower end of 40 is rotatably pivoted. The rod 40
Consists of a turnbuckle with variable length,
It is configured such that the height of the support 26 can be adjusted as appropriate.

As shown in FIG. 2, a front cam 46 is rotatably disposed near the arm 44, and a cam follower 48 pivotally supported by the arm 44 is slidable in a cam groove 46a of the illustrated shape provided on the cam 46. Is facing. The front cam 46 is connected to a drive motor 51 via a linking means 50 such as a chain-sprocket. Accordingly, by rotating the drive motor 51 in a predetermined direction, the arm 44 engaged with the front cam 46 swings,
As a result, the support 26 moves up and down (FIG. 4 (e),
(F)). Note that a servo motor is preferably used as the drive motor 51, and a product detection sensor 52 described later is used.
Is intermittently driven by a control command based on the product detection of.

At the position where the lifter 18 is disposed, as shown in FIG.
A pair of mounting tables 53, 53 having a shape are disposed to face each other across the support table 26 in a direction intersecting the transfer direction. The upper surface level of the horizontal portion 53a of the mounting table 53 is set so as to substantially match the upper end level of the ear folding member. In addition, both mounting tables 53, 53 are supported by the supporting table 26 (holding table 3).
They are spaced apart by the length that allows the lifting and lowering of 2). That is, as shown in FIG. 4 (d), the packaging bags 16 transported by the transfer conveyor 14
3, 53, and is configured to wait for pushing up by the lifter 18. When the lifter 18 rises, as shown in FIG. 4 (e), the body 16c of the packaging bag body 16 is placed on the holding table 32 of the supporting table 26, and the both ear folding members 34, 34 are placed. The upper end is in contact with the lower surface of the corresponding ear 16a, 16b.

A stopper 54 is provided at a position sandwiching the transfer conveyor 14 and the lifter 18, and the stopper 54 is provided on the front ear 16a of the packaging bag 16 transferred by the transfer conveyor 14, as shown in FIG. The distal end is brought into contact with the package bag 16 to stop and position the package bag 16. This stopper 54
Is provided with a product detection sensor 52 composed of, for example, a photoelectric tube, and the sensor 52 is configured to detect the front ear 16a of the packaging bag body 16. Then, based on the detection of the product by the detection sensor 52, the drive motor 51 is started.

As shown in FIG. 2, a pair of ear bending guides 55, 55 are arranged above the lifter 18 in parallel with each other at a distance allowing passage of the support 26 in the transport direction of the packaging bag body 16. Has been established. As shown in FIGS. 4 (e) and 4 (f), the bending guides 55, 55 cooperate with the ear folding members 34, 34 of the lifter 18 so that the front and rear ear portions of the packaging bag body 16 can be moved. It functions to bend 16a and 16b downward. Also,
The folding guide 55 located on the front side in the transfer direction of the attachment 56 described later also has a function of folding the front ear 16a of the packaging bag body 16 along the bottom surface. As shown in FIG. 3, the upper portion of the vicinity of both ends in the longitudinal direction of the ear bending guide 55 is cut out over a predetermined length, and the notch 55a allows the attachment 56 to pass above the attachment 56. Function.

Above the ear bending guides 55, a suction device 57 having a suction surface directed downward is provided, and as shown in FIG. 4 (f), the packaging bag body 16 pushed up by the lifter 18 is provided. It is configured to hold the upper surface by suction. In addition,
Although the suction force of the suction device 57 is maintained without dropping the packaging bag body 16 even when the lifter 18 is lowered, the transfer of the packaging bag body 16 by the attachment 56 is set to an allowable value.

Above the ear bending guide 55, a transfer conveyor 58 functioning as a transfer mechanism of the packaging bag body 16 is provided. As shown in FIG. 2, the transfer conveyor 58 is wound around a pair of sprockets 59, 59, which are arranged at a predetermined interval in a direction parallel to the traveling direction of the transfer conveyor 14, and between the two sprockets 59, 59. Endless chain 60 and attachments arranged at predetermined intervals in the running direction of the endless chain 60
It consists of 56. Another sprocket 61 is coaxially disposed on the upstream sprocket 59 of the transfer conveyor 58 so as to be integrally rotatable. The front cam 46
A sprocket 63 connected to the front cam 46 via a power transmission means 62 such as a gear is rotatably disposed adjacent to the front cam 46. A chain 64 is wound between the sprocket 63 and the sprocket 61. It is hung. That is, the transfer conveyor 58 is driven by the drive motor 51 that drives the lifter 18 up and down.

In the embodiment, the attachment 56 is configured to be moved by a sprocket-chain. However, the attachment 56 may be moved by a pulley and a belt or a wire.

As shown in FIG. 3, the attachment 56 is formed in an L-shape on a side surface, and has a substantially central portion cut out in an L-shape, so that the attachment 56 can move without interfering above the ear bending guide 55. It is configured to be able to. The notch 56a functions to allow the label 65 to be attached to the bottom surface of the packaging bag body 16 when attaching a second label 65 described later. As shown in the drawing,
A connecting rod 66 extending in a direction intersecting the transfer direction is provided on the rear surface side of the vertical portion 56b of the 56, and a protruding end of the connecting rod 66 is connected to the endless chain 60. That is, the attachment 56 can be moved below the suction device 57 without the endless chain 60 interfering with the suction device 56.

The attachment 56 is, as shown in FIG.
In a state where the packaging bag body 16 sucked and held by the suction device 57 is scooped on the horizontal portion 56c, a discharge conveyor 67 described later is used.
To the packaging bag 16
It functions to abut against the rear ear portion 16b and fold it along the bottom surface of the bag body 16.

As shown in FIG. 3, the attachment is located downstream of the position where the ear bending guides 55 and 55 are disposed.
A pair of side guide members 68, 68 for regulating the position of both side surfaces (both side surfaces in a direction intersecting with the transfer direction) of the packaging bag body 16 transferred by 56 are arranged at a predetermined interval. In addition, a bottom guide member 69 is provided at a position corresponding to the notch 56a of the attachment 56, in the middle between the both side guide members 68, 68,
A front ear 16a folded into the bottom surface of the packaging bag 16 is in sliding contact with the bottom guide member 69. The guide members 68 and 69 are disposed in parallel with the transfer conveyor 58 up to the vicinity of a discharge conveyor 67 described later. In addition, as shown in FIG. 2, above the bottom guide member 69, the attachment
An upper guide member 79 for preventing the packaging bag body 16 transferred by 56 from lifting up is extended in parallel with the bottom guide member 69.

At an appropriate position on the downstream side of the bottom guide member 69, a second label attaching device 70 for attaching the second label 65 to the bottom surface of the packaging bag body 16 is provided. That is, as shown in FIG. 2, a roll body 72 formed by winding a long band body 71 with a predetermined diameter under the bottom guide member 69 is rotatably disposed. Second labels 65 for fixing the ear portions 16a and 16b to the bag body 16 are releasably attached at predetermined intervals. Further, the band 71 pulled out from the roll 72 is provided with a plurality of guide rollers 73.
Through the take-up roller 74. The belt 71 guided by the guide roller 73 is
In the middle of the drawing, the second label 65 peeled off from the band 71 is adhered to the bottom surface of the packaging bag body 16 while facing the movement trajectory of the bottom surface of the packaging bag body 16 transferred by the attachment 56. I have.

Here, as shown in FIG. 5 (b), the length dimension of the second label 65 is such that both ears 16a and 16b of the packaging bag body 16 are fixed to the bag body 16 and the first label 83 It is set to extend between the ends. This makes it as if the packaging bag
A bag 16 in a form in which a band is wound around the outer periphery of 16 is obtained. Note that the bottom guide member 69 is located at the position where the second label 65 is attached.
Are not provided, so that the sticking of the second label 65 is not hindered.

At the downstream side of the attaching position of the second label 65, an attaching roller 75 that is in contact with the bottom surface of the packaging bag body 16 transferred by the attachment 56 is rotatably disposed. Further, a pressing device 77 in which an elastic belt 76 made of, for example, sponge or the like is movably disposed above the position where the second label 65 is adhered. That is, when the second label 65 is attached to the packaging bag 16, as shown in FIG. 4 (h), the bag 16 is sandwiched by the pressing device 77 and the attaching roller 75. 65 reliable pastes can be achieved.

As shown in FIG. 2, a discharge conveyor 67 and a discharge chute 78 are provided further downstream of the sticking roller 75. Then, it is transported by the attachment 56, and during the transport, the ears 16a and 16b are bent and the second label 6 is moved.
The packaging bag body 16 as shown in FIG.
Is configured to be transferred to a subsequent process via the discharge conveyor 67 and the discharge chute 78.

Next, the operation of the packaging apparatus according to the above-described embodiment will be described.

(First Label Attaching Step) When the packaging apparatus 1 is started, as shown in FIG. 1, the article supply conveyor 4 is driven, and one article 3 to be packaged is attached by the attachment 6 provided on the conveyor 4. It is sent by hitting. Further, the belt-shaped film 8a pulled out from the raw roll 8 is squeezed by a pair of feeding rollers 9, 9, and
It is intermittently fed at a predetermined pitch toward a bag making device 7 disposed downstream of the article supply conveyor 4. At this time, the take-up roller 87 of the first label sticking device 82 rotates intermittently in a predetermined direction, and pulls out the band 84 from the roll body 85 by a predetermined length.

This band 84 is guided by a plurality of guide rollers 86 and approaches the feeding path of the band-shaped film 8a, where the first label 83 is peeled off from the band 84, as shown in FIG. 4 (a). The first label 83 is attached with its center in the width direction aligned with the center of feeding of the film 8a. It should be noted that the first label 83 is set so as not to face a portion where an end seal / cut is performed by an end seal device 20 described later.

(Bag-making and filling process of band-shaped film) As described above, the band-shaped film 8a to which the first labels 83 are attached at predetermined intervals according to the film pitch corresponding to one packaging length of the band-shaped film 8a is shown in FIG. As shown in (b), it is formed into a cylindrical shape via the bag making device 7. Then, the article to be packaged 3 supplied by the article supply conveyor 4 is filled in the tubular film 8b at predetermined intervals. At this time, the packaged object 3 is located below substantially the center in the longitudinal direction of the first label 83 attached to the upper surface (front surface side) of the tubular film 8b.

Further, the tubular film 8b is fed to the downstream side by being pressed by the pair of feed rollers 80, 80 at the overlapping surface of the edge in the longitudinal direction, and is fed to the pair of sealing rollers 81, 8.
1 seals the center.

(End Sealing / Cutting Step of Cylindrical Film) The cylindrical film 8b, which has been subjected to the center seal and filled with the packaged object 3 at predetermined intervals, has a sealing roller as shown in FIG. 4 (c). It arrives at the end seal device 20 arranged downstream of 81. The end sealers 24 and 24 which perform required operations (for example, rotation and block motion) by the operation of the packaging apparatus 1 perform end sealing and cutting that intersect with the feeding direction before and after sandwiching the packaged object 3 of the tubular film 8b. Will be applied. As a result, the packaging bag body 16 in which the article to be packaged 3 is filled and the ear portions 16a and 16b having the predetermined length are formed at the front and rear is manufactured.

In addition, each end sealer 24 has a bending habit forming tool 22, 22.
Is provided, and at the same time as the end seal is applied, a protrusion is provided between the body 16c and the ears 16a, 16b in parallel with the end seal and on the side of the first label 83 to which the first label 83 is attached. (See FIG. 4 (d)). Therefore,
The ear can be bent smoothly and neatly in the post-process.

(Folding step of packaging bag body) The packaging bag body 16 is, as shown in FIG.
It is transferred to the transfer conveyor 14 via the transfer belt 12, and is further supplied to the lifter 18 by the transfer conveyor 14. Migration conveyor 14
As shown in FIG. 4 (d), the packaging bag body 16 is transferred to the mounting tables 53, 53, and the front end of the front ear 16a contacts the stopper 54 to be stopped and positioned. You. At this time, the product detection sensor 52
However, the arrival of the packaging bag 16 at an appropriate position of the lifter 18 is detected.

By the product detection of the product detection sensor 52, the drive motor 51 starts operating and rotates the front cam 46. The rotation of the front cam 46 causes the arm 44 engaged via the cam follower 48 to swing about the pin 42 as a fulcrum, whereby the lifting bar 28 rises while being guided by the plurality of guide rollers 38. At this time, the trunk 16c of the packaging bag body 16 is placed and supported on the holding table 32 of the support platform 28, and the front ends of the pair of ear folding members 34, 34 are attached to the front and rear ear portions 16a of the packaging bag body 16. , 1
It comes into contact with the lower surface corresponding to the folding habit formed in 6b.

As shown in FIG. 4 (e), the front and rear ear portions 16a and 16b of the packaging bag body 16 supported and pushed up by the support base 26 have their upper surfaces abutted on the pair of ear bending guides 55 and 55. In contact therewith, upward movement is prevented. In addition, the ear part 16a (1
Since the tip of the ear-folding member 34 is in contact with the lower surface between the body 16c and 6b), the ear 16a (16b)
Is folded vertically downward along the folding habit by folding means including the ear folding member 34 and the ear folding guide 55.

As described above, the packaging bag body 16 in which the both ear portions 16a and 16b are bent is further pushed upward, and the upper surface is suction-held by the suction device 57 as shown in FIG. 4 (f). At this time, the lower ends of the ear portions 16a and 16b of the packaging bag body 16 are in contact with the corresponding bending guides 55, and are restricted from returning to the original position. Then, at the timing when the support 26 descends, the attachment 56 of the transfer conveyor 58, which is intermittently driven by the same drive motor 51 as the lifter 18, is brought into the packaging bag as shown in FIG. The body 16 reaches the hanging position.

As described above, since the attachment 56 has an L-shape, the tip of the horizontal portion 56c abuts on the folded rear ear portion 16b of the packaging bag body 16 and folds it along the bottom surface of the bag body 16. . Further, the packaging bag body 16 sucked and held by the suction device 57 is transferred while being scooped by the horizontal portion 56c of the attachment 56. At this time, as shown in FIG. 4 (g), the front ear 16a of the packaging bag body 16 is prevented from advancing by the ear bending guide 55 constituting the folding means. The front ear 16
a is folded along the bottom surface of the bag 16.

(Attaching Step of Second Label) The packaging bag body 16 in which the both ear portions 16a and 16b are folded is placed on the side guide member 6 disposed downstream of the ear bending guide 55.
8 and 68, and are transported while being guided by the bottom guide member 69 and the top guide member 79. Then, the packaging bag body 16 is
As shown in FIG. 4 (h), when the label arrives above the position where the label sticking device 70 is disposed,
The label 65 is commonly attached to the front and rear ear portions 16a and 16b folded on the bottom surface of the packaging bag body 16. At this time, the packaging bag 16 moves while being nipped by the pressing device 77 and the attaching roller 75, so that the second label 65 is
Can be securely attached to the bottom surface of the. The second label 65 is provided with a notch 56a formed in the attachment 56.
It is designed to be attached to the bottom of the bag corresponding to.

That is, as shown in FIG. 5, both ears 16a and 16b
A packaging bag body 16 having an external appearance as if a strip material is wound, in which the first label 83 is attached to the outer periphery of the surface while being attached to the bottom surface via the label 65 is manufactured. Then, as shown in FIG. 4 (i), the packaging bag body 16 is discharged toward the next step via the discharge conveyor 67 and the discharge chute 78.

As described above, according to the packaging method of the present invention,
By applying a label over substantially the entire outer periphery of the packaging bag, a packaging bag with a high commercial value, which has an appearance as if wound with a band material, can be manufactured fully automatically. . That is, it is possible to extremely efficiently manufacture a packaging bag body having a low efficiency and a high cost because it has conventionally depended on manual labor, thereby realizing a reduction in manufacturing cost. In addition, since the label is attached to a required position in advance at the stage of the strip film, high-speed processing can be performed.
Moreover, since the label is set so as not to face the end seal portion of the packaging bag, the end seal can always be smoothly achieved. In addition, when the end seal is applied to the tubular film, a fold habit is given in advance to a portion to be an ear portion of the packaging bag body, so that the ear portion can be reliably and beautifully bent in a later step.

Further, the front and rear ears are bent downward when the packaging bag is raised, and then both ears are folded into the lower surface of the bag when the packaging bag is transferred in the horizontal direction. The bending of the ear can be reliably achieved. In addition, since the ears are bent while the packaging bag body is being sucked and held by the suction device, the packaged object is not deformed or crushed even if the packaged object is easily deformed such as a fresh confectionery. And other beneficial effects.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing the configuration of the first half of the packaging device according to the embodiment, FIG. 2 is a schematic configuration diagram showing the configuration of the second half of the packaging device according to the embodiment, and FIG. FIGS. 4 (a) to 4 (i) are schematic perspective views of a main part showing an arrangement portion of an ear-folding guide, and FIGS. 4 (a) to 4 (i). FIG. 4 (a) to FIG. FIG. 5 (a) is a schematic perspective view of the packaging bag manufactured by the packaging apparatus according to the embodiment observed from the top side, and FIG. 5 (b) is an example. It is the schematic perspective view which observed the packaging bag body manufactured by the packaging apparatus which concerns on 2 from the lower surface side. 3 to be packaged, 4 to an article supply conveyor 7 to a bag making machine, 8 to a roll of raw material 8a ... to a strip film, 8b to a tubular film 16 ... to a packaging bag 16a ... to the front ear 16b Rear ear part, 18 Lifter 20 End seal device, 34 Folding member 55 55 Ear bending guide, 56 Attachment 57 Suction device 58 Transfer conveyor 60 … Endless chain, 65 …… Second label 70 …… Second label sticking device, 82 …… First label sticking device 83 …… First label

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Akiyoshi Takeyama 4-380 Nakaodai, Nishi-ku, Nagoya-shi, Aichi Fujikikai Nagoya Plant (56) References JP-A-61-11112 (JP, A) Akira Mikai 61-80205 (JP, U) Japanese Utility Model Showa 55-173402 (JP, U) JP-B 62-20094 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65B 9/00 -9/24 B65B 61/24

Claims (2)

(57) [Claims] 1. A belt-like film (8a) unwound from a web roll (8) is formed into a tubular shape, and the obtained tubular film (8
After supplying the article to be packaged (b) to b), the tubular film (8b) is end-sealed and cut before and after sandwiching the article to be packaged (3) to produce a packaging bag (16). When the tubular film (8a) is formed into a tubular shape, the tubular film (8b) is provided with an end seal according to a pitch corresponding to one packaging length of the tubular film (8a). When cut, it extends over both ears (16a, 16b) formed with required dimensions before and after the packaging bag (16), and the ears (16a, 16b) are folded along the packaging bag (16). A first label (83) having a predetermined width set to a length extending to the vicinity of the cut end of the film beyond the bent portion when bent at the portion to which the habit is given, and the width of the label (83) Affixed in advance so that the center in the direction coincides with the feeding center of the cylindrical film (8a); Cylindrical film (8
The end seal (16a, 16b) of the packaging bag body (16) obtained by performing end sealing and cutting before and after sandwiching the article to be packaged (3) is inserted into the end seal. Ears (16a, 16b) formed in front and rear of the packaging bag body (16) to give a folding habit that allows bending to the side opposite to the label application surface in parallel with
Is folded together with the first label (83) at the site where the first label (83) is attached, at the site where the first label (83) is attached, and the ears (16a, 16b) are attached to the packaging bag (16). The first label (83) is fixed to the outer surface side, and the both ears (16a, 16b) of the packaging bag body (16) are bent at the side where the both ears (16a, 16b) are bent. ), A second label (65) dimensioned so as to extend between the ends of the first label (83) facing the both ears (16a, 16b). And packaging method. 2. A belt-like film (8a) fed from a material roll (8) is formed into a tubular shape, and the obtained tubular film (8) is formed.
b) a packaging device for supplying the articles to be packaged (3) at predetermined intervals therein, comprising a pair of end sealers (24, 24) vertically facing each other with the tubular film (8b) interposed therebetween; The sealer (24,24)
Seal and cut in a direction intersecting the feeding direction before and after sandwiching the packaged object (3) of the tubular film (8b), and set the seal interval to the required size before and after the packaged object (3). An end seal device (20) set to form ears (16a, 16b); and a tubular film (8) fed from the material roll (8).
a) is disposed in close proximity to the feeding path of
In accordance with the pitch corresponding to one packaging length of the strip film (8a), the first
The label (83) is placed such that the center in the width direction is the band-shaped film (8).
a) a first label affixing device (82) that is intermittently supplied and affixed so as to coincide with the feeding center of (a); and a package obtained by being disposed downstream of the end seal device (20). Lifter (18) that pushes bag (16) upward
And a packaging bag (1) pushed up by the lifter (18).
Folding means (34, 55) for bending the front and rear ears (16a, 16b) in 6) downward, and disposed above the lifter (18).
A suction device (57) for sucking and holding the packaging bag body (16) pushed up by 8) in a hanging state, and a transfer member (6) circulating and running above the lifter (18).
0), the rear ear part (16b) of the packaging bag (16) held at the suction device (57) and held by the suction device (57) is attached to the bag (1).
6) is folded along the lower surface, and while the packaging bag (16) is transported while being scooped, the folding means (3)
4,55) in cooperation with the front ear (16a) in the bag (16)
A transfer mechanism (58) provided with an attachment (56) that folds along the lower surface of the packaging bag; and a packaging bag (16) disposed downstream of the transfer mechanism (58) in the transfer direction and transferred by the transfer mechanism (58). ), A second label sticking device (70) for sticking a second label (65) for fastening the both ears (16a, 16b) to the bag (16). Characteristic packaging equipment.