JP3235656B2 - Method and apparatus for manufacturing packaging container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to the production of packaging containers.
The present invention relates to a method and an apparatus , for example, manufacturing of a packaging container provided as a three-dimensional package for containing liquids such as drinking water and drinks, and liquid foods such as powdery or granular foods.
Method and apparatus .

[0002]

2. Description of the Related Art Conventionally, a sealed bag has been provided as a package for containing a beverage. The bag is formed by polymerizing a pair of films laminated with aluminum foil, welding the periphery, filling the beverage from the opening of the bag, and sealing the opening by welding or the like. Therefore, when a user drinks a beverage, a part of the bag is torn, a straw is inserted into the bag, and the bag is sucked.

[0003] Such a bag is relatively flat as a whole and has a problem that not only the capacity is small but also it is not possible to display the bag in an upright installed state at the time of over-the-counter sales.

[0004] For this reason, in recent years, expandable and contractible bags having a gusset formed from the bottom to the side edge have been provided, and have been well received as a beverage package. Such a scalable bag, when filled with beverages, has a large capacity since the gusset expands and forms a three-dimensional form, and can be displayed in a state where the bag is standing upright at the time of over-the-counter sales.

[0005]

In the above-described expandable and contractible bag, the bag material is formed of a relatively thick film in order to maintain shape. In particular, because it is necessary to form a thick aluminum foil laminated on the film, resource saving,
It is not preferable in terms of garbage pollution.

Further, since a thick bag material having excellent shape retention is used, it is not always easy to form a gusset at the time of bag making, and a large-sized bag making facility is required.

On the other hand, the bag body is expanded so as to form a three-dimensional form by filling a beverage from the flat state in which the gusset is folded, but since the gusset is also formed at the bottom, the bottom is desired. It is hard to be flat. For this reason, it is possible to place the three-dimensional bag upright on the display stand during over-the-counter sales, etc., but it is difficult to maintain an upright posture, and there is a problem that it becomes inclined and easily falls. .

Accordingly, the present applicant has previously filed Japanese Patent Application No.
No. 73927 proposes a method and apparatus for manufacturing a packaging container in which a dish-shaped bottom member and a film-made cylindrical wall are erected from the peripheral wall of the bottom member. However,
The embodiment of the invention of the prior application has a configuration in which a dish-shaped bottom member is arranged so as to open upward, and a film cylinder wall is erected from a peripheral wall of the bottom member, and the dish-shaped opening of the bottom member is a cylinder wall. In the manufacturing process, unless the bottom member is removed from the core together with the film tube wall in the manufacturing process, a process for forming a gusset on the film tube wall and a process for processing the mouth portion must be performed. There is a problem that can not be.

[0009]

Means for Solving the Problems The present invention solves the above-mentioned problems, and provides a packaging container in which a film-made cylindrical wall is erected from the peripheral wall of a dish-shaped bottom member. Method and apparatus for manufacturing an improved packaging container
Is proposed .

Therefore, a method of manufacturing the packaging container according to the present invention is described.
The method that the law constituted as the first means is the bag making work process
After each stage is intermittently moved toward each stage
Transfer body that is made to go around endlessly to return to its original state
Above, a method for producing a packaging container comprising brought upright dished wall from a film made of the cylindrical wall of the bottom member which opens downwardly, dished the tip portion of the core 17 provided on the conveying member 15 a setting step of mounting the bottom member 2 in the coronary, before
An auxiliary core positioned concentrically with the core 17
The tip of the auxiliary core 23 by advancing the arm 23
The surface is brought into contact with or close to the bottom wall 3a of the bottom member 2,
The auxiliary core 2 is arranged in a direction intersecting the axis of the auxiliary core 23.
Along with feeding out the continuous strip film 27 toward 3,
By rotating the auxiliary core 23, the peripheral wall of the bottom member 2 is formed.
3b and a belt-shaped film 27 wound around the auxiliary core 23
Allowed, a winding step of forming a film tube walls by polymerizing the subsequent portion 27c of the belt-shaped film 27 which continuously feeding edge 27b of the belt-shaped film 27, a feeding edge 27b of the polymerized film 27 subsequent and seam welding to form a seam welded portion 5a by allowed to weld the parts 27c to each other, and the subsequent portion 27c and the cut separation allowed to separation step of the belt-shaped film 27 along the seam welded portion 5a, the peripheral wall of the bottom member 2 Film tube wall wound on 3b
4 with round welding means 31 in contact with base end 4a
To rotate the core 17 and the auxiliary core 23 synchronously.
And the base edge 4a is welded over the entire circumference of the peripheral wall 3b.
Round welding process and retract the auxiliary core 23
After being extracted from the film cylinder wall 4, the packaging container 5 having the bottom member 2 and the film cylinder wall 4 integrated with each other is placed in the core member 17.
Transfer to the next stage with the core 17 while attached to
A processing step of performing mouth machining on at least the opening edges of the film tube wall 4, after the packaging container 5 is completed, the packaging container 5
From the core 17 in the product supply step.

[0011] In order to carry out the method,
The packaging container manufacturing apparatus according to the invention is configured as a means.
A roller 17 driven and rotated on the transfer body 15;
Cylindrical wall molding provided at the stage where the winding process is performed
An apparatus 21 and a seam melting
The welding means 28 and the separating means 29,
Round welding means 31 provided at the application stage
The cylindrical wall forming device 21 is driven and rotated.
An auxiliary core 23; and an auxiliary core 23 provided along the auxiliary core 23.
Guide roller 24 and auxiliary core with respect to core 17.
23 is moved forward and backward from the facing direction and the auxiliary core
Bottom member 2 having a tip end surface of the core 23 mounted on the core 17
Forward to a position in contact with or close to the bottom wall 3a
Retraction drive means 22; and a peripheral surface of an auxiliary core 23.
And the auxiliary core 23 which has been advanced
Near the feeding end of the strip-shaped film 27 fed toward
7a is sucked and fixed by the fixing means 26,
The peripheral wall of the bottom member 2 is rotated by driving and rotating the auxiliary core 23.
3b and a belt-shaped film 27 wound around the auxiliary core 23
Then, the feeding edge 27b of the strip film 27 is continuously connected.
Over the subsequent portion 27c of the belt-like film 27
It is configured to form a film cylinder wall by
The seam welding means 28 and the separation means 29 are in the forward position.
Of the auxiliary core 23 above the guide roller 24
It is provided so as to be able to move up and down and up and down by the return drive means 30.
Belt-like film 27 mutually polymerized on id roller 24
Seam welding means 28
And the subsequent portion 27c is attached to the separating means 29.
The round welding hand is configured to be more cut and separated
The step 31 is a peripheral wall of the bottom member 2 mounted on the core 17.
With respect to the base edge 4a of the film cylinder wall 4 superimposed on 3a
A round welding means 3 comprising a heating roller which can be freely contacted and separated;
1 is in contact with the base edge 4a and the core 17 and the auxiliary core
23, the base edge 4a is
It is configured to be welded over the entire circumference of the peripheral wall 3a.
On the point .

Furthermore, a method for manufacturing a packaging container according to the present invention.
Has configured as a second means the bag making process
After being intermittently moved to each stage in order
On a transfer body that is made to return endlessly to return
With the film from the peripheral wall of the dish-shaped bottom member that opens downward
A method of manufacturing a packaging container consisting of upright cylindrical walls
And a dish-shaped bottom member 2 and a tubular film cylinder wall.
4 for separately manufacturing and preparing the core 17a;
Attach the dish-shaped bottom member 2 to the holding portion 41 at the tip in a crown shape.
Setting process, and advance and retreat along the axial direction of the core 17a.
Transfer device 42 which is squeezed and radially expanded and contracted
In the state where it is projected from the tip of the core 17a.
After the film cylinder wall 4 is held by the loading device 42, the transfer
By moving the device 42 in the axial direction of the core 17a,
The base opening edge 4a of the film cylinder wall 4 is attached to the peripheral wall 3b of the bottom member 2.
A cylindrical wall mounting step of extrapolating the base end opening edge 4a
With the welding means 31a in contact with the outer peripheral surface, the core 17a is removed.
By rotating the base opening edge 4a, the bottom member 2
Welding that welds the entire circumference of the peripheral wall 3b
And a packaging container integrally provided with the bottom member 2 and the film cylinder wall 4.
Product supply step of removing the container 5 from the core 17a.
On the point .

In manufacturing the packaging container , an unprocessed portion may be left at the leading edge of the opening of the film cylinder wall. In this case, the packaging container in which the bottom member and the film cylinder wall are integrated by the round welding step is used. After the bottom member is attached to the core and the core and the core are transferred to the next step, and the unprocessed portion is subjected to the opening process, the packaging container can be removed from the core.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

( Structure of Packaging Container) As shown in FIG. 1 (A), a packaging container 5 manufactured according to the present invention has a peripheral wall 3b of a dish-shaped bottom member 2 opening downward.
And a film-made cylindrical wall 4 is erected, and the above-mentioned packaging container 5 constitutes the above-described food and beverage package.

That is, the film cylinder wall 4 forms a pair of gussets 6, 6 by folding both sides inward, and the abutted opening edges 7, 7 are formed by the gussets 6, 7.
The three-dimensional container 5 is provided by welding 8 in a horizontal straight line including 6.

In the first example of the packaging container shown in FIG.
After filling the packaging container 5 with food or drink such as a beverage, the opening edges 7, 7 are welded in a horizontal straight line including the gussets 6, 6 as described above, whereby a three-dimensional package is provided. The straw 1 is attached to the packaging container 5 via an adhesive seal piece 9.
It is offered on the market with 0 attached. Therefore, when the user drinks the beverage, the notch 11 formed in the welding portion 8 in advance is torn, and the straw 10 is inserted into the inside of the packaging container 5 and sucked.

In the second example of the packaging container shown in FIG.
A linear chuck means 12 comprising detachable male and female means is attached to the center of the opening edges 7, 7 by welding or the like, and the opening edges 7, 7 on both sides of the chuck means 12 are connected to the gusset 6 , 6 are welded 8a, 8a. Accordingly, after the packaging container 5 is filled with food and drink such as beverages with the chuck means 12 opened, the chuck means 12 is sealed, and if necessary, a welding seal parallel to the chuck means 12 is applied. To be served. Therefore, when the user drinks the beverage, the welding seal may be cut off and the chuck means 12 may be opened. At this time, the first
It is preferable to attach a straw as in the example.

In the third example of the packaging container shown in FIG.
When the opening edges 7, 7 are welded 8 in a horizontal straight line including the gussets 6, 6, the nozzle means 13 is welded while being sandwiched, and the nozzle means 13 is opened and closed.
4 is sealed. Therefore, when the user drinks the beverage, the cap 14 is removed and the nozzle means 1 is removed.
It is only necessary to suck the beverage through 3.

In any of the above cases, the packaging container 5 is
Is made of a flexible film, so that when the food and drink are not filled, the cylindrical wall 4 and the bottom member 2 can be stored and transported in a flat state by overlapping the cylindrical wall 4 and the bottom member 2 while the cylindrical wall 4 is raised from the bottom member 2. When the food and drink are filled in the state, the three-dimensional form is formed and the capacity becomes large, and the peripheral wall 3b provided downward from the bottom wall 3a of the bottom member 2 constitutes a seat. Can be placed. And the bottom member 2
Is formed in the shape of a downwardly-opening dish by suspending an annular peripheral wall 3b from the bottom wall 3a, and a film-made cylindrical wall 4 that rises upward from the bottom member 2 connects the base opening edge 4a to the bottom member 4a. Since it is configured to be extrapolated to the second peripheral wall 3a and welded over the entire circumference, it is possible to configure the following steps in its manufacture.

(First Embodiment of Manufacturing Method) FIG. 2 (A)
Indicates a table-like transfer body 15, and the transfer body 1
5 is driven by a driving device (not shown) to rotate the central rotating shaft 16.
It is intermittently rotated around. A plurality of cores 17, in the illustrated example, four columnar cores 17 are arranged in a row in the front part of the transfer body 15 at equal intervals in the circumferential direction, and each step of the bag making operation is performed at the position of each core. Four stages A to D to be performed are configured. Therefore, the transfer body 15 is intermittently rotated by a distance corresponding to the interval between the stages (in the case of a four-stage stage as shown in the figure, 90 degrees in the circumferential direction), and each step is performed at each stage. Stop while it is being done. For this reason, each columnar core 17 starts from the first stage A, passes through the subsequent stages, and is endlessly rotated so as to return to the original first stage A. still,
The transfer body 15 may be constituted by a conveyor such as a belt or a chain for intermittently moving the core 17 in the endless circulating direction, in addition to such a table.

As shown in FIG. 2B, the core 17
It is formed in a tapered column shape whose outer diameter gradually increases from the protruding front end toward the base, and includes a rotating shaft 18 rotatably mounted on the transfer body 15 around the axis.

Therefore, in the first stage A, the dish-shaped bottom member 2 is mounted on the tip of the core 17 in a crowned manner (setting step). The dish-shaped bottom member 2 is not particularly limited as long as it has a heat-sealing property, but a laminated sheet of paper and a synthetic resin film, a laminated sheet of a metal film and a synthetic resin film, and a synthetic paper and a synthetic resin film. A dish-shaped bottom member 2 having a bottom wall 3a and a peripheral wall 3b can be formed by hot pressing or cold pressing a sheet selected from a laminate sheet and other laminate sheets. As for the synthetic resin film to be laminated, from the viewpoint of heat welding property, polypropylene, polyethylene and the like are excellent, and from the point of gas barrier property, nylon,
Polyester is excellent. In the case of lamination using a metal film, the metal film may be formed by aluminum evaporation other than aluminum foil, and may be formed by laminating an inorganic film by silica evaporation or the like on a synthetic resin film. Further, the dish-shaped bottom member 2 may be an integrally molded product of a synthetic resin having a bottom wall 3a and a peripheral wall 3b by injection molding or the like, in addition to the one formed by pressing a sheet.

Although not shown, the bottom member 2 is supplied to the first stage A during the setting step.
For example, a number of bottom members 2 are sequentially supplied by conveyor means such as a belt or a chain. Alternatively, a stacked body in which many bottom members 2 are stacked with the bottom wall 3a facing upward or downward is waiting at a position near the first stage A. Then, one end of the bottom member 2 is grasped by a supply means such as a robot finger or a suction finger, and the tip of the core 17 is covered. At this time, as shown in FIG. 2B, an air hole 19 is preferably provided in the distal end surface of the core 17, and an air suction / discharge means connected to the inside of the core 17 via a rotation shaft 18 is provided. Air is sucked from the air hole 19 through the bottom member 20 to cover the covered bottom member 2.
It is desirable to fix the bottom member 2 to the tip of the core 17 in a crown shape by means of the supply means such as the fingers and the air holes 19. Constitute.

The core 17 on which the bottom member 2 is set is transferred from the first stage A to the second stage B by rotating the transfer body 15 intermittently and stopped. In the second stage B, the cylindrical wall forming device 21 that can move forward and backward facing the core 17 is on standby. This cylindrical wall forming device 2
1 is provided with an auxiliary core 23 connected to advance / retreat driving means 22 such as a cylinder, and a guide roller 24 which is freely rotatable along the peripheral side of the auxiliary core 23 is provided. The auxiliary core 23 is provided on its peripheral surface with a fixing means 26 comprising an air hole connected to the air suction / discharge means 25.

Therefore, the core 17 on which the bottom member 2 is set is set.
Comes to the second stage B, as shown in FIG. 4, the auxiliary core 23 is advanced by the advance / retreat driving means 22, and the auxiliary core 23 is positioned concentrically with respect to the core 17, and the auxiliary core 23 The distal end surface is brought into contact with or close to the bottom wall 3a of the bottom member 2, and in this state, the auxiliary core 2
A continuous strip film 27 is fed out from the direction intersecting the third axis toward the core. That is, although not shown, a film feeding means for intermittently feeding the long belt-like film 27 from a winding roll of the film through a step roller or the like by a driving roller is configured, and thereby, Then, a portion 27a near the feeding end of the strip film 27 is in contact with the peripheral surface of the auxiliary core 23. At this time, the auxiliary core 23
The feed-out end vicinity 27a is attracted and fixed to the peripheral surface through fixing means 26 composed of an air hole.

The material of the belt-like film 27 is not particularly limited as long as it has a heat-welding property, but it may be a laminate film of paper and a synthetic resin film, a laminate film of a metal film and a synthetic resin film, or a laminate film of a synthetic paper and a synthetic resin film. It can be selected from laminated films and other laminated films. The synthetic resin film to be laminated, from the viewpoint of heat welding, polypropylene, polyethylene and the like are excellent, from the viewpoint of gas barrier properties,
Nylon, polyester, etc. are excellent. In the case of lamination using a metal film, the metal film may be formed by aluminum evaporation other than aluminum foil, and may be formed by laminating an inorganic film by silica evaporation or the like on a synthetic resin film. The thickness T1 of the film 27 is the thickness T of the bottom member 2.
2, it is preferable that T1 <T2.
It may be ≦ T2. Also, as shown in FIG. 1, since it constitutes the cylindrical wall 4 of the packaging container 5, various printed displays such as product display are formed on the laminate film by gravure printing, flexographic printing or other printing means. Has been given.

When the feeding end of the belt-like film 27 is fed between the guide roller 24 and the auxiliary core 23, the auxiliary core 23 and the core 17 are synchronously rotated by a rotation driving means (not shown), and are fixed via the fixing means 26. Near the feeding end 2
The belt-like film 27 is pulled in a state where 7 a is adsorbed on the peripheral surface of the auxiliary core 23. As a result, the belt-shaped film 27 is wound around the outer periphery of the auxiliary core 23 including the peripheral wall 3b of the bottom member 2 with the vicinity of the pay-out end 27a fixed to the fixing means 26 as the head. A film cylinder wall is formed in a state where 4a overlaps with the peripheral wall 3b of the bottom member 2 (winding step). At this time, it is preferable that the two cores 23 and 17 be rotated synchronously as shown in the figure, but only the auxiliary core 23 may be rotated. Therefore, when the auxiliary core 23 is rotated substantially once or slightly more than one rotation, the feeding edge 27b protruding in a flap shape from the feeding end vicinity 27a fixed to the fixing means 26 is located on the guide roller 24. The film is superimposed on the subsequent portion 27c of the film, and the rotation of the auxiliary core 23 is stopped in that state.

A seam welding means 28 and a separation means 29 are provided above the guide roller 24, and are connected to a reciprocating drive means 30 such as a cylinder device for moving the two means 28, 29 up and down. . Seam welding means 28
Comprises a heating plate, and the separating means 29 comprises a fusing blade or a cutting blade. Both means 28, 2 via reciprocating drive means 30
9, the guide rollers 24 are moved as described above.
The feeding edge 27b and the succeeding portion 27c which are superimposed on each other above
Are welded by the seam welding means 28 and
a (shown in FIG. 5) (seam welding step). Then, the separating portion 29 cuts and separates the subsequent portion 27c of the strip film 27 along the seam welded portion 5a (separation step). Thereby, the film cylinder wall 4 is formed on the auxiliary core 23. After that, the seam welding means 28 and the separating means 29 are retracted by the reciprocating drive means 30.

A round welding means 31 is provided on the side of the bottom member 2 held by the core 17.
Reciprocating drive means 3 such as a cylinder device for moving the unit 1 forward and backward
It is connected to 2. The round welding means 31 is composed of a heating roller, and when the means 31 is advanced through a reciprocating drive means 32, the round welding means 31
In contact with the base edge 4a. Then, when the core 17 and the auxiliary core 23 are rotated synchronously, as shown in FIG.
The base edge 4a of the film cylinder wall 4 is welded over the entire circumference of the peripheral wall 3a of the bottom member 2 to form a round welded portion 5b (round welding step). In addition, round welding means 3
1 is constituted by a heating roller in the case of the figure,
A heating band that surrounds and clamps the base end edge 4a of the film cylinder wall 4 or other means may be used.

The film cylinder wall 4 formed by the winding step
It is preferable that the seam welding step, the separation step, and the round welding step are performed in the order described above, but the order may be changed as necessary.

After forming the packaging container 5 integrally including the bottom member 2 and the film cylinder wall 4 by the above steps, the cylinder wall forming device 21 is retracted by the advance / retreat driving means 22, and the auxiliary core 23 is moved to the film cylinder. Pull out from the wall 4 and evacuate. In this state, the bottom member 2 of the packaging container 5 still has the core 17
The crown is held. Therefore, the bottom member 2 is
The packing container 5 is transferred from the second stage B to the third stage C by intermittently rotating the transfer body 15 while being attached to the package.

In the third stage C, preferably, the packaging container 5 is naturally cooled after a predetermined time in a stopped state, and then the gussets 6, 6 are attached to the film cylinder wall 4 as shown in FIG. It is formed (a gusset forming step). Although not shown, the opening edge 4b of the film cylinder wall 4 is not shown.
Is subjected to mouth processing (processing step). In the opening processing, for example, processing for forming the welding 8 described above with reference to FIG. 1, processing for forming the notch 11, and processing for attaching the chuck means 12 or the nozzle 13 and the cap 14 and the like. Processing and other processing are included, and necessary processing is selected and executed from various processing to be performed on these mouths. When the gusset forming step and / or the processing step are performed, the packaging container 5 is held by the core 17 while covering the bottom member 2 with the core 17. It can be done easily.

When the packaging container 5 is completed on the core 17, the transfer body 15 is rotated intermittently, so that the core 17 together with the packaging container 5 is moved to the fourth position as shown in FIG. Transfer to stage D and stop, where
The packaging container 5 is removed from the core 17 and dropped off (product supply step). In the case of the illustrated example, if the air is ejected from the air hole 19 by switching the valve of the air suction / discharge means 20, the bottom member 2 is released from the core 17. An ejector pin may be provided on the distal end surface, or the packaging container 5 may be separately pulled out from the core 17 by using a robot finger or a suction finger. The packaging container 5 escaped from the core 17 is transported by a conveyor via a chute or the like. Since the completed packaging container 5 is shipped to a food and drink maker or the like and is filled with food or the like there, it is preferable that a filling port for filling the filling material is provided at the opening edge 4b. In that case, a food maker or the like may close the filling port after filling the food or the like. Alternatively, filling materials such as food and drink may be simultaneously filled during the manufacturing process of the packaging container 5. For example, a filler may be filled inside the film cylinder wall 4 prior to or simultaneously with the processing step.

(Second Embodiment of Manufacturing Method) FIGS. 7 and 8
In the second embodiment of the present invention shown in FIG.
And the cylindrical film tube wall 4 are separately manufactured and prepared in advance (preparation step). The materials and the like of the bottom member 2 and the film cylinder wall 4 are the same as those described in the first embodiment.

The columnar core 17a is provided with a holding portion 41 having an air hole 19a at the tip end thereof, and the air hole 19a is connected to an air suction / discharge means (not shown). The core 17a is provided with a rotating shaft 18a.
And is rotatable around an axis by rotation driving means (not shown).

A transfer device 42 is fitted over the core 17a. The transfer device 42 includes an annular portion 43 slidably fitted on the columnar portion of the core 17a, and A plurality of scalable chuck claws 44 are provided extending in the axial direction along the columnar portion 17a. Although not shown in the figure, there are provided an advancing / retracting driving means for moving the annular portion 43 in the axial direction of the core 17a and an expanding / reducing driving means for expanding / contracting the chuck pawl 44.

Further, a round welding means 31a is provided on the side of the holding portion 41 of the core 17a, and is connected to a reciprocating drive means 32a such as a cylinder device for moving the means 31a forward and backward. The round welding means 31
Comprises a heating roller.

Therefore, when manufacturing the packaging container 5, first, in the first stage shown in FIGS. 7A and 8A, the dish-shaped bottom member 2 is covered with the holding portion 41 of the core 17a. And set (setting step). In this setting process, the bottom member 2 is the core 1 of the first stage.
7a. For example, a number of bottom members 2 are sequentially supplied by conveyor means such as a belt or a chain. Alternatively, a stacked body in which many bottom members 2 are stacked with the bottom wall 3a facing upward or downward is waiting at a position near the first stage. Therefore, one end of the bottom member 2 is pinched by a supply means such as a robot finger or a suction finger, and is covered by the tip of the core 17a.
At this time, the core 17a sucks air from the air hole 19a via the air suction / discharge means, and fixes the covered bottom member 2 so as not to fall off from the holding portion 41 of the core 17a.

Next, the core 17a is transferred to the second stage while holding the bottom member 2, where the base opening edge 4a of the film cylinder wall 4 is extrapolated to the peripheral wall 3b of the bottom member 2 (cylinder wall). Mounting process). That is, the film cylinder wall 4 manufactured and prepared in the preparatory process is stored in the second stage, and one of the film cylinder walls 4 is pinched by a supply means such as a robot finger or a suction finger, and the core is fixed. It is supplied concentrically to the holding part 41 of 17a and stands by. Therefore, in a state where the chuck pawl 44 is slightly expanded by the expansion and contraction driving means, the annular portion 43 is moved by the advance and retreat driving means.
Is slid along the core 17a, and the chuck pawl 4
4 is inserted into the waiting film cylinder wall 4. Then
When the chuck pawl 44 is further expanded, the film cylinder wall 4 is held around the chuck pawl 44 as shown in FIG. 8B. In this state, the annular portion 43 is retracted by the advance / retreat driving means, and the film The base opening edge 4a of the cylindrical wall 4 is
In a state in which it is moved to a position facing the peripheral wall 3b, the chuck claw 44 is contracted and the annular portion 43 is retracted to the original position. Accordingly, the film cylinder wall 4 in the standby state is thereby transferred to the outer periphery of the bottom member 2, and the base opening edge 4a
Is extrapolated to the peripheral wall 3b of the bottom member 2.

Thereafter, when the round welding means 31a is advanced through the reciprocating drive means 32a, the round welding means 31a comes into contact with the outer peripheral surface of the base end opening edge 4a of the film cylinder wall 4. Then, when the core 17a is rotated, FIG.
As shown in (B), the base end opening edge 4a of the film cylinder wall 4
Is welded over the entire circumference of the peripheral wall 3a of the bottom member 2 to form a round welded portion 5b (round welding process). In the illustrated example, the round welding means 31a is constituted by a heating roller. However, the round welding means 31a may be constituted by a heating band which surrounds and clamps the base end opening edge 4a of the film cylinder wall 4 or other means. good.

When the packaging container 5 is completed on the core 17a, the core 17 holding the packaging container 5 via the bottom member 2
is transferred to the final stage, where the packaging container 5 is removed from the core 17a and dropped off (product supply step).
In the case of the illustrated example, if the air is ejected from the air hole 19a by switching the valve of the air suction / discharge means, the bottom member 2 is released from the core 17a. An ejector pin may be provided on the surface, or the packaging container 5 may be separately pinched by a robot finger or a suction finger and the like.
a. The packaging container 5 that has escaped from the core 17a is conveyed by a conveyor via a chute or the like.

(First Example Based on the Second Embodiment of the Manufacturing Method) In this second embodiment, the film cylinder wall 4 manufactured and prepared in the preparation step is formed with gussets 6 The opening edge 4b can be subjected to opening processing. The opening processing includes, for example, processing for forming the weld 8 described above with reference to FIG.
, A process for attaching the chuck means 12 or the nozzle 13 and the cap 14 and the like, and other processes, which are necessary for various processes to be performed on these openings. Processing has been selected and implemented.

(Second Example Based on Second Embodiment of Manufacturing Method) Alternatively, in the second embodiment, the film cylinder wall 4 manufactured and prepared in the preparation step is subjected to the above-described opening processing. It may be a simple cylindrical body. In this case, the film cylinder wall 4 is extrapolated to the bottom member 2 held by the core 17a by the above-described cylinder wall mounting step,
After the base opening edge 4a is welded to the peripheral wall 3b of the bottom member 2 by the round welding step, the gussets 6 and 6 are formed and the tip opening is performed while the semi-finished packaging container 5 is held on the core 17a. The mouth processing is performed on the edge 4b. In the opening processing, for example, processing for forming the welding 8 described above with reference to FIG. 1, processing for forming the notch 11, and processing for attaching the chuck means 12 or the nozzle 13 and the cap 14 and the like. Processing and other processing are included, and necessary processing is selected and executed from various processing to be performed on these mouths. At this time, the gusset forming step and / or the processing step are performed on the bottom member 2 of the packaging container 5.
Is carried out with the core 17a held by the core 17a, so that these processing operations can be easily performed.

The packaging container manufactured according to the present invention is an example in the figure.
It is not limited to are, of course, it is possible to apply various design changes or improvements. For example, in the case of the figure, the packaging container 5 in which the cylindrical bottom wall 2 is provided with the cylindrical tubular wall 4 is shown, but the packaging container 5 in which the polygonal bottom member 2 is provided with the polygonal cylindrical tubular wall 4 is shown. Can be manufactured. In this case, if the cores 17 and 17a are formed in a polygonal columnar shape, it can be easily implemented.

[0046]

The packaging container 5 manufactured according to the present invention is
Since the film-made cylindrical wall 4 is erected from the dish-shaped bottom member 2, it is possible to provide a package 5 having a large capacity, and the bottom member 2 extends from the bottom wall 3 a. Since the peripheral wall 3b thus functioned as a seat, there is an advantage that it is possible to provide a package that can be displayed and sold in a state of being placed on a display stand or the like in an upright posture. And the dish-shaped bottom member 2
Therefore, the film forming the cylindrical wall 4 can be made of a thin film, which can contribute to resource saving and prevention of dust pollution.

In particular, when manufacturing the packaging container 5 provided with such a bottom member 2, for example, as in the invention of Japanese Patent Application No. 9-273927 previously proposed by the present applicant, a dish-shaped bottom member is used. 2 is arranged so as to open upward, and the film cylinder wall 4 is erected from the peripheral wall 3b of the bottom member 2, since the dish-shaped opening of the bottom member 2 faces the inside of the cylinder wall 4, In the manufacturing process, together with the film cylinder wall 4 and the bottom member 2
The process for forming the gusset 6 on the film cylinder wall 4 and the process for processing the mouth portion cannot be performed unless after removing the gusset 6 from the core 17, according to the present invention, Since the bottom member 2 is arranged so as to open downward, the core 17 is kept in a necessary step after the setting step in which the bottom member 2 is mounted on the tip of the core 17 in a crowned manner. It is possible to carry out the process as it is, and there is an effect that the above-mentioned packaging containers 5 can be continuously mass-produced and provided at a low cost with small-scale simple equipment.

[Brief description of the drawings]

FIG. 1 illustrates a packaging container manufactured according to the present invention, in which (A) is a cross-sectional view showing an embodiment of the packaging container, (B).
FIG. 3 is a perspective view showing a first example of a packaging container, (C) is a perspective view showing a second example of the packaging container, and (D) is a perspective view showing a third example of the packaging container.

2A and 2B show a first embodiment of the manufacturing method of the present invention, wherein FIG. 2A is a perspective view showing an example of a transfer body, and FIG. 2B is a perspective view showing a setting step.

FIG. 3 is a perspective view showing a cylindrical wall forming apparatus used in the first embodiment of the manufacturing method of the present invention, and showing a state in which an auxiliary core is retracted from the core.

FIG. 4 is a perspective view showing a stage before a seam welding step and a separation step in the first embodiment of the manufacturing method of the present invention.

FIG. 5 is a perspective view showing a round welding step in the first embodiment of the manufacturing method of the present invention.

6A and 6B show a first embodiment of a manufacturing method according to the present invention, wherein FIG. 6A is a perspective view showing a processing step of opening processing, and FIG.
FIG. 4 is a perspective view showing a product supply step.

7A and 7B show a second embodiment of the manufacturing method of the present invention, wherein FIG. 7A is a perspective view showing a setting step, FIG. 7B is a perspective view showing a step of transferring a film cylinder wall to a bottom member, (C) is a perspective view showing a round welding step.

8A and 8B show a second embodiment of the manufacturing method of the present invention, wherein FIG. 8A is a cross-sectional view showing a setting step, and FIG. 8B is a state during a step of transferring the film cylinder wall toward the bottom member. (C) is a cross-sectional view showing the state after the transfer is completed.

[Explanation of symbols]

 Reference Signs List 2 bottom member 3a bottom wall 3b peripheral wall 4 cylindrical wall 5 packaging container 5a seam welded part 5b round welded part 6 gusset 15 transfer body 17 core 19 air hole 20 air suction / discharge means 21 cylindrical wall forming device 23 auxiliary core 27 belt-like film 27a feeding end Neighboring portion 27b Feeding edge 27c Subsequent portion 28 Seam welding means 29 Separation means 31 Round welding means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-86457 (JP, A) JP-A-5-138775 (JP, A) JP-A-2-191159 (JP, A) 7506 (JP, B1) (58) Field surveyed (Int. Cl. ⁷ , DB name) B31B 1/00-49/04 B65D 30/16-30/18

Claims (3)

(57) [Claims] 1. Each stage in which a bag making process is performed
End-to-end
A method of manufacturing a packaging container comprising a film-like cylindrical wall standing upright from a peripheral wall of a dish-shaped bottom member that opens downward on a transfer body that is circulated around the transfer body , wherein the core provided on the transfer body 15 is provided. A setting step of attaching the dish-shaped bottom member 2 to the tip of the core 17 in a crowned manner, and an auxiliary positioned concentrically with respect to the core 17
By moving the core 23 forward, the tip of the auxiliary core 23 is
The end face is brought into contact with or close to the bottom wall 3a of the bottom member 2,
The auxiliary core 23 is arranged in a direction intersecting the axis of the auxiliary core 23.
When the continuous strip film 27 is fed toward
By rotating the auxiliary core 23, the bottom member 2
A belt-like film 27 is provided on the outer periphery of the peripheral wall 3b and the auxiliary core 23.
A winding step of forming a film cylinder wall by winding and overlapping a feeding edge 27b of the film 27 with a succeeding portion 27c of the continuous film 27; and a feeding edge 27b of the polymerized film 27. And the subsequent portion 27c are welded to each other to form a seam weld 5
a forming seam welding step, and the seam welding portion 5a
Separating the trailing portion 27c of the belt-like film 27 along the edge of the film member 27, and the base end of the film cylinder wall 4 wound around the peripheral wall 3b of the bottom member 2.
While the round welding means 31 is in contact with the core 1a, the core 1
7 and the auxiliary core 23 are rotated in synchronization with each other.
Round for welding the base edge 4a over the entire circumference of the peripheral wall 3b
Welding process and withdrawing auxiliary core 23 from film cylinder wall 4
After that , the packaging container 5 integrally provided with the bottom member 2 and the film cylinder wall 4 is attached to the core 1 with the bottom member 2 attached to the core 17.
And a product supply step of removing the packaging container 5 from the core 17 after the packaging container 5 is completed after the packaging process is completed by transferring the packaging container 5 to the next stage and processing the opening edge of at least the opening edge of the film cylinder wall 4. A method for producing a packaging container, comprising: 2. An apparatus for implementing the method according to claim 1.
A core 17 driven and rotated on the transfer body 15;
Cylindrical wall molding provided at the stage where the winding process is performed
An apparatus 21 and a seam melting
The welding means 28 and the separating means 29,
Round welding means 31 provided at the application stage
The cylindrical wall forming apparatus 21 includes an auxiliary core 2 driven and rotated.
3 and a guide row attached along the auxiliary core 23.
And the auxiliary core 23 is opposed to the core 24 and the core 24.
And the tip of the auxiliary core 23
The surface is on the bottom wall 3a of the bottom member 2 mounted on the core 17 by the crown.
Advancing / retracting driving means 2 for advancing to a contact or close position
And fixing means 2 on the peripheral surface of the auxiliary core 23.
6 and extended toward the advanced auxiliary core 23.
The portion 27a near the feeding end of the strip film 27 to be fixed is fixed as described above.
The auxiliary core 23 is sucked and fixed by the
Is driven to rotate, so that the peripheral wall 3b of the bottom member 2 and the auxiliary
A belt-shaped film 27 is wound around the outer periphery of the
Strip-like film continuous with the feeding edge 27b of the film 27
By filling the following portion 27c of the
The seam welding means 28 and the separating means 29 are arranged in a forward position.
Of the auxiliary core 23 above the guide roller 24
It is provided so as to be able to move up and down and up and down by the return drive means 30.
Belt-like film 27 mutually polymerized on id roller 24
Seam welding means 28
And the subsequent portion 27c is attached to the separating means 29.
The round welding means 31 is attached to the core 17 with a crown.
Of the film cylinder wall 4 superimposed on the peripheral wall 3a of the bottom member 2
The heating roller comprises a heating roller which can freely contact and separate from the base edge 4a.
With the round welding means 31 in contact with the base edge 4a, the core
-17 and the auxiliary core 23 are rotated synchronously.
Therefore, the base edge 4a is welded over the entire circumference of the peripheral wall 3a.
Manufacturing apparatus for a packaging container characterized by being constituted as follows.
Place . 3. Each stage in which a bag making operation is performed.
End-to-end
A method of manufacturing a packaging container in which a film-made cylindrical wall is erected from a peripheral wall of a dish-shaped bottom member that opens downward on a transfer body that is circulated around a container, wherein the dish-shaped bottom member 2 is previously provided. A preparation step of separately manufacturing and preparing the cylindrical film cylinder wall 4; a setting step of mounting the dish-shaped bottom member 2 on the holding portion 41 at the tip of the core 17a in a crowned manner ; Retractable and retractable along the axial direction
The transfer device 42 that can be expanded and contracted in the
The transfer device 42 is protruded from the distal end.
After holding the LUM tube wall 4, the transfer device 42 is
By moving the film cylinder wall 4 in the axial direction of 17a,
A tube for externally inserting the base opening edge 4a to the peripheral wall 3b of the bottom member 2.
In the wall mounting step , the welding means 31a is brought into contact with the outer peripheral surface of the base opening edge 4a.
By for rotating the core 17a in a state, the packaging container 5 having a round welding process allowed to welding the entire circumference of the peripheral wall 3b of the base member 2 the proximal end opening edges 4a, a bottom member 2 and the film tube wall 4 integrally And removing the product from the core 17a.