JP2001002006A - Method and device for manufacturing packaged body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically spot-weld a sealing piece to an opening edge of a container by providing a container and film installation process, a film holding process to press the film against the opening edge, a punching process to form the sealing piece, and an evacuation process of a press panel and a hot blade. SOLUTION: A container 1 storing a content 6 is transferred to a next stage for the sealing, and a plurality of containers 1 are installed in a row with their opening edges 5 released. A strip-like film stock 7 is installed across these containers 1, 1 in the vicinity of the opening edge 5 facing the opening edge 5 of the container 1. The film stock 7 is pressed against the opening edge 5 by a press panel having an outer circumferential shape substantially along the opening edge 5 of the container 1, and held thereby, and the film stock 7 is punched along the opening edge 5 by a cylindrical hot blade having the blade shape along the opening edge 5 of the container 1, a sealing piece 8 attached to the opening edge 5 from the outside is formed by a punching piece. Then, the press panel and the hot blade are evacuated from the opening edge 5 of the container 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method and an apparatus for manufacturing a package. More specifically, the present invention relates to a packaging in which a sealing piece is attached from the outside to an opening edge of a container containing a fluid such as cream and other filling materials, and the opening of the container is sealed by the sealing piece. The present invention relates to a body manufacturing method and a manufacturing apparatus.

[0002]

2. Description of the Related Art Conventionally, a container filled with a fluid such as cream or the like is sealed from the outside with a sealing piece such as a thin paper or a film, and a screw is formed on an outer periphery of an opening cylinder. With a cap. The sealing piece is formed by punching a paper, a film or the like in advance into a contour along the opening edge of the container. Usually, the opening edge of the container is formed in a circular ring shape, and accordingly, a circular sealing strip along the shape is manufactured and prepared. Therefore, in a cosmetics maker or the like, after filling the container with a fluid such as cream on a line for transporting the container, a sealing piece is attached from the outside to the opening edge of the container, and a cap is attached to the opening cylindrical portion of the container. After attaching,
Take it out as a product.

[0003]

In the above-mentioned maker's line, the operation of filling a container with a fluid is usually automated, and a cap is attached to the opening cylinder of the container filled with the fluid. In this way, the operation of obtaining the package is also easy to automate, and some of the operations are actually automated.
However, there is no example of attaching a sealing piece to the opening edge of the container, and all workers manually pick the sealing pieces prepared in advance one by one on the transport line to open the container. It is at present that it covers the edge. In this regard,
Instead of manual work, it is not always difficult to automate the work of picking the prepared sealing pieces one by one and covering them over the opening edge of the container by mechanization of a robot finger or the like, but it requires a large investment in equipment. Alternatively, it is difficult to expect a speedup superior to a skilled worker because the manual operation is merely mechanized. Moreover, the cost of the sealing piece itself cannot be reduced unless the request is made by the subcontractor to manufacture the sealing piece in advance, and furthermore, the inconvenience that a large number of sealing pieces must always be stocked by the manufacturer. There is also.

[0004]

Means for Solving the Problems The inventors of the present invention have made intensive studies to solve the above-mentioned problems, and as a result, installed a container in which the filling material is stored with the opening edge opened, and opened the opening edge. The film material is placed near the opening edge in a state facing the opening, the film material is pressed against the opening edge by a pressing plate and held, and the film material is brought to the opening edge by a tubular hot blade having a blade shape along the opening edge. After punching along, the pressing plate and the hot blade are retracted from the opening edge, so that there is no need to manufacture and stock the sealing piece in advance, and the opening of the container where the filling is stored on the line of the manufacturer etc. It has been found that a sealing piece can be automatically punched and formed from a film material, and the sealing piece can be automatically attached to the opening edge of the container. To complete the present invention . That is, the present invention provides (1)
In a method for manufacturing a package, in which a sealing piece having a contour substantially along the opening edge of a container in which the filling is stored is attached to the opening edge from the outside, the filling is stored in a state where the opening edge is opened. A container setting step of setting the container, a film setting step of setting the film material near the opening edge in a state facing the opening edge, and opening the film material by a pressing plate having an outer peripheral shape substantially along the opening edge of the container. A film holding step of pressing and holding against the edge, and a sealing piece attached from the outside to the opening edge by punching the film material along the opening edge by a cylindrical hot blade having a blade shape along the opening edge of the container. A method for manufacturing a package, comprising: a punching step for forming; and a retreating step for retreating the press platen and the hot blade from the opening edge of the container, and (2) storing the filling in a filled state. 2. The method for producing a package according to claim 1, wherein the fluid material is a fluid material, and the film material is brought into contact with the fluid material in the film holding step, and the sealing piece formed in the punching step is adhered to the fluid material. ) The film material is made of a heat-shrinkable film, and in the punching step, a cylindrical hot blade having a blade shape slightly larger in diameter than the outer periphery of the opening edge of the container is provided at the outer peripheral position of the opening edge from the direction facing the opening edge. By moving toward the blank and punching the film material, a sealing piece with a surplus edge protruding from the outer periphery of the opening edge is formed, and at the time of punching with a hot blade, the surplus edge is blown by blowing hot air toward the surplus edge. 3. The method for manufacturing a package according to claim 1 or 2, wherein the package is heat-shrinked and fastened to the outer periphery of the opening edge, and (4) a welding means capable of mutually thermally welding the opening edge of the container and the film material is provided. Clause 1 or 2, wherein a peripheral edge of the sealing piece is heated and pressed against the opening edge by a heating pressing portion formed on a part of the pressing plate or a part of the hot blade, and the peripheral edge of the sealing piece is welded to the opening edge. (5) A plurality of containers are arranged in a row, and a band-shaped film material is placed across the group of arranged containers, and a pressing plate provided corresponding to each container. And the plurality of heating blades are operated at the same time, whereby a sealing piece is simultaneously attached to each of the opening edges of the plurality of containers. A package manufacturing apparatus in which a sealing piece having a contour substantially along the opening edge of a stored container is attached to the opening edge from the outside, and the filler is stored in a state where the opening edge is opened. Fill the container with the container installation means for installing the container Means for setting the film material near the opening edge, film holding means for pressing and holding the film material against the opening edge by a pressing plate having an outer peripheral shape substantially along the opening edge of the container, and a blade along the opening edge of the container Punching means for forming a sealing piece attached from the outside to the opening edge by punching the film material along the opening edge with a tubular hot blade having a shape, and pressing the pressing plate and the hot blade from the opening edge of the container. (7) A method for manufacturing a package body having a retracting means for retracting, and (7) a method of attaching a sealing piece having a contour substantially along the opening edge of the container to the opening edge from the outside, the method comprising: A container installation step of installing the container with the edge opened, a film installation step of installing a film material near the opening edge in a state facing the opening edge, and an outer periphery generally along the opening edge of the container A film holding step of pressing and holding the film material against the opening edge by a pressing plate having a shape, and punching the film material along the opening edge by a tubular hot blade having a blade shape along the opening edge of the container, using a punching piece. A method of closing a container opening, comprising: a punching step of forming a sealing piece attached to the opening edge from the outside; and a retreating step of retreating the pressing plate and the hot blade from the opening edge of the container. , Is provided.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. (Principal Description of the Method of the Present Invention) FIG. 1 explains the principle of the method of the present invention in principle, and is provided for understanding the detailed description described later. As shown in FIG. 1A, for example,
The container 1 integrally includes a cylindrical container main body 2 formed of a synthetic resin or the like, and a cylindrical opening cylinder 3 forming a neck extending from the container main body 2. Part 4
, An opening edge 5 serving as a thick circular cut end is formed, and a male screw 3 a is provided on the outer periphery of the opening cylindrical portion 3. The opening 6 is filled with a filling 6 made of a fluid such as cream or the like until the opening 4 is almost full. Such a storing operation of the filling material 6 is automated on a transport line. Subsequently, the containers 1 containing the fillings 6 are transferred to the next stage for sealing by the method of the present invention by a conveyor or the like, where the plurality of containers 1 are arranged in a row with the opening edge 5 opened. (Container installation process). In this state, as shown in FIG.
A belt-like film material 7 is set so as to straddle the film 1 (film setting step). At this time, the film material 7 is placed near the opening edge 5 so as to face the opening edge 5 of the container 1. As described later, the film material 7 is pressed against the opening edge 5 from a state shown in FIG. 1B by a pressing plate having an outer peripheral shape substantially along the opening edge 5 of the container 1, thereby holding the film material 7 (film holding step). Subsequently, when the film material 7 is punched along the opening edge 5 by a cylindrical hot blade having a blade shape along the opening edge 5 of the container 1 (punching step), FIG.
As shown in FIG. 3C, a sealing piece 8 attached to the opening edge 5 from the outside is formed by the punched piece. Thereafter, the pressing plate and the hot blade are retracted from the opening edge 5 of the container 1 (retreat step). The container 1 provided with the sealing piece 8 is sent to the next step, where the cap 9 is covered with the opening cylindrical portion 3.

(Apparatus for Implementing First Embodiment) Such a sealing method using the sealing piece 8 is performed by an apparatus as shown in FIGS. In one example of the illustrated apparatus, the container 1 is transported by a conveyor or the like,
A plurality is arranged in a straight line and stopped (container installation step). This container setting step may be performed by manually placing the containers 1 on the setting table 10 by an operator, but the setting table 10 itself is constituted by a conveyor, and a predetermined number of containers 1 are automatically set. Are preferably arranged side by side. The container 1 is opened with the opening edge 5 facing upward. Then, the strip-shaped film material 7 is fed out above the arranged container group. Although not shown, the belt-shaped film material 7 is unreeled from one winding roll in the longitudinal direction of the belt, passes over a group of containers arranged in a line, and is wound on the other winding roll. For example, a predetermined number (six in the example shown) of containers 1 arranged in a row
In the case where the band-shaped film material 7 is fed out in the line-up direction (horizontal direction in the drawing), the band-shaped film material 7 is wound from a winding roll with the line-up length defined by the number of containers 1 as a stroke unit. The sheet is intermittently fed out and transported toward the take-up roll corresponding to the stroke. On the other hand, when the band-shaped film material 7 is fed in a direction (the front-rear direction in the drawing) intersecting with the direction in which the container groups are arranged, the film material 7 having a band width corresponding to the arrangement length defined by the number of containers 1 The belt-shaped film material 7 is intermittently fed out and transported from the winding roll to the winding roll from the winding roll to the take-up roll, using a length corresponding to one container as a stroke unit. In either case,
The belt-shaped film material 7 is configured to be wound up on a take-up roll after being fed out from the winding roll over the container group, and then wound up on a take-up roll. After the punching, the continuous strip-shaped scrap is wound on a take-up roll, and a new film portion is unwound from the take-up roll and transported upward from the next group of containers. A fixed frame 12 is fixedly mounted on the uppermost portion of the device frame 11, and a cylinder 13 for achieving punching is mounted on the fixed frame 12. Further, on the lower surface of the fixed frame 12, cylinders 14 for achieving film holding are attached corresponding to the containers 1 arranged in line. The moving frame 1 is provided below the fixed frame 12.
5 is provided, and the moving frame 15 is connected to the device frame 11 and the fixed frame 1 via a slide guide 16.
2 is vertically movable with respect to 2 and is connected by a connecting rod 17 to a cylinder 13 for achieving punching.
Therefore, the moving frame 15 is always in a state of being lifted to an upper position by the punching achievement cylinder 13, and is lowered when the punching achievement cylinder 13 is operated. An operating unit 18 is detachably mounted on the moving frame 15 corresponding to each of the arranged containers 1 and the cylinders 14 for achieving film holding. In the case of the illustrated example, six operating units 18 are provided. Installed.

[0007] As shown in FIG.
Mounting flange 19 and fixing flange 20 arranged vertically
Are connected by a rod 21 and the fixing flange 20
And the heating block 22 disposed below the rod 23
And has a piston rod 24 inserted through the mounting flange 19, the fixed flange 20, and the heating block 22, and has a tubular hot blade 25 attached to the heating block 22. The piston rod 24 has a pressing plate 26 at the tip (lower end), and the pressing plate 26
Is formed in an outer peripheral shape substantially along the opening edge 5 (preferably, a shape having an outer diameter matching the outer periphery of the opening edge 5), and the outer diameter gradually increases toward the piston rod 24 on the back surface (upper surface) of the pressing plate 26. The tapered surface 27 is formed to be reduced. Also,
The piston rod 24 is slidably inserted into the heating block 22 via a bush, and is slidably inserted into the fixed flange 20 via a guide cylinder 28. The upper end) is inserted upward through the insertion hole of the mounting flange 19, and a nut 29 with a flange and an adjustment bolt 30 screwed to the nut 29 with a flange are provided at the tail end. A resilient biasing means 31 composed of a coil spring is externally inserted around the outer periphery of the piston rod 24, and a flanged nut 29 and a guide cylinder 2
8, the piston rod 2 is always compressed.
4 is urged in the ascending direction, and the adjusting bolt 30 is brought into contact with the cylinder rod 14a of the cylinder 14 for achieving film holding. In a preferred embodiment of the present invention, a refrigerant passage 32 is provided from the pressing plate 26 through the piston rod 24, and the refrigerant passage 32 is communicated with a refrigerant jacket 33 formed in the guide cylinder 28. Although not shown, a coolant such as cooling water or cooling air is supplied to the coolant jacket 33, and always cools the pressing plate 26.

[0008] The hot blade 25 has a blade shape along the outer periphery of the opening edge 5 of the container 1 and normally surrounds the pressing plate 26.
The tail end of the heat blade 25 is externally fitted to the heating block 22 and is detachably fixed by a set bolt 34. The heating block 22 has a built-in heater 35,
5 is heated to a predetermined temperature.
A tapered guide surface 36 whose diameter gradually increases downward from the periphery of the piston rod 24 is formed on the lower surface of the piston rod 24.
The outlets of the hot air passages 37 are provided at a plurality of locations on the tapered guide surface 36 at intervals in the circumferential direction, for example, at four locations at equal intervals. Although not shown, hot air is supplied to the hot air passage 37 from a compressor or a blower, etc.
6 and the tapered surface 2 of the pressing plate 26
7, and is ejected to the outside through a gap between the pressing plate 26 and the hot blade 25. In order to detachably attach the mounting flange 19, the moving frame 15 forms a notch 38, a step-like groove 39 is formed along the notch 38, and the side edge of the mounting flange 19 is fitted into the step-like groove 39. In this state, the holding piece 40, which is superposed on the mounting flange 19 from above, is fastened to the moving frame 15 by the bolt 41. Therefore, when the bolt 41 is loosened, the mounting flange 19 is slidable along the step groove 39, and
The operating unit 18 can be removed from the moving frame 15 by pulling out from the opening of the notch 38.
On the other hand, when the operating unit 18 is mounted on the moving frame 15, the mounting flange 19 is inserted between the step-shaped groove 39 and the pressing piece 40, and the piston rod 24 is pressed down against the elastic urging means 31. After the adjustment bolt 30 is inserted under the cylinder rod 14a, the bolt 41 may be tightened to fasten the holding piece 40. As described above, since each of the operation units 18 is detachable from the movable frame 15 as a unit, the maintenance such as replacement of the hot blade 25 can be easily performed.

(Operation of the Apparatus and the First Embodiment of the Method of the Present Invention) A film holding step according to the first embodiment of the present invention, in which the method of manufacturing a package of the present invention is carried out based on the manufacturing apparatus of the present invention having the above-described embodiment. The punching process will be described. In the first embodiment, the strip-shaped film material 7 is made of a heat-shrinkable film. As shown in FIG. 8A, the cylindrical hot blade 25 has a cylindrical blade shape slightly larger in diameter than the outer periphery of the opening edge 5 of the container 1, that is, a sufficiently large diameter. Hot blade 25
Is moved from the direction facing the opening edge 5 toward the outer peripheral position of the opening edge 5 to punch out the film material 7 to form a sealing piece 8 having an excess edge 8 a protruding from the outer periphery of the opening edge 5, and Surplus edge 8a when punching with blade 25
, The excess edge 8a is thermally contracted by being blown toward the opening edge, and tightened to the outer periphery of the opening edge 5. FIG. 4 shows a film holding process. When the cylinder 14 for achieving the film holding is operated, the piston rod 24 is elastically biased by the cylinder rod 14a.
1, the pressing plate 26 presses and holds the film material 7 against the opening edge 5 of the container 1. At this time, since the press platen 26 is cooled by the refrigerant in the refrigerant passage 32, the film material 7 does not shrink by heating. FIG. 5 shows a punching step. In the state where the film material 7 is pressed against the opening edge 5 of the container by the pressing plate 26 as described above, the cylinder 13 for achieving punching is operated,
The moving frame 15 is lowered together with the connecting rod 17, whereby the hot blade 25 is lowered together with the portion of the operating unit 18 excluding the piston rod 24. At this time, the piston rod 24 is attached to the cylinder rod 14a of the cylinder 14 for achieving film holding fixed to the fixed frame 12.
Is held by the resilient urging means 31 so as not to move up and down from the position in the film holding step, and is held at the localization value.

Therefore, the hot blade 25 descending toward the outer periphery of the opening edge 5 of the container 1 punches out the film material 7 and, as shown in FIG. Is formed. At this time, the hot blade 25
At the same time, the heating block 22 descends and approaches the film material 7, and the hot air supplied to the hot air passage 37 is blown from the gap between the tapered guide surface 36 and the tapered surface 27 toward the surplus edge 8 a. Therefore, the surplus edge 8 a is thermally contracted while being urged downward by the hot blade 25, so that the surplus edge 8 a is tightened to the outer periphery of the opening edge 5. When the hot air is blown, the portion of the sealing piece 8 excluding the excess edge 8a is
Since it is covered by the pressing plate 26 cooled by the heat sink 2, it is not thermally contracted. After the sealing piece 8 is punched out of the film material 7 and the sealing piece 8 is attached to the opening edge 5 of the container 1, the cylinder 13 for punching is restored by the reverse operation. By moving, the hot blade 25 is retracted and raised, and the cylinder 14 for achieving the film holding is moved backward, whereby the piston rod 24 is raised by the resilient urging means 31 and the pressing plate 26 is retracted and raised. Then, the row of the containers 1 each having the sealing piece 8 attached thereto is transferred to the next step by a transport means or the like, and the film material 7 that forms the scrap after punching the sealing piece 8 is wound around a take-up roll. At the same time, a new film portion is unwound from the winding roll and transferred toward the next group of containers aligned and set on the setting table 10, thereby completing one cycle of the method of the present invention.

(Second Embodiment of the Method of the Present Invention) FIGS. 6 and 7 show a second embodiment of the present invention. The principle of the method is the same as that of the first embodiment. In the punching step, the surplus edge 8a is formed on the sealing piece 8 and the surplus edge 8a is contracted by heat so as to be fastened to the outer periphery of the opening edge 5 of the container 1. Also, the configuration is the same as that of the first embodiment, so only the configuration different from the first embodiment will be described. As shown in FIG. 6, the moving frame 15 is vertically movable with respect to the apparatus frame 11 and the fixed frame 12 via the slide guide 16, but is not a cylinder 13 for achieving punching as in the first embodiment. , A mechanism that converts a rotary motion into an elevating motion of the moving frame 15, such as a rack-and-pinion type or a bolt-nut type, is adopted.
The elevating / lowering drive means includes an electrically controllable electric motor or the like, not shown. The heating blade 25 is a heating block 2
2, the heating block 22 is connected to the mounting flange 19 via the fixing flange 20, thereby forming the operating unit 18. Therefore, the piston rod 24 slidably inserted into the operation unit 18 is used.
Is a stopper 4 for stopping the piston rod 24 in a state where the pressing plate 26 at the tip end is slightly protruded from the hot blade 25.
5 and the spring receiving portion 46 and the mounting flange 19
A spring means 47 composed of a compression coil spring is interposed therebetween. Therefore, the pressing platen 2
6 at a predetermined position where it projects from the hot blade 25.
5, the piston rod 24 is configured to be retractable against the resilient means 47 so as to push the pressing plate 26 into the hot blade 25.

An upper member 48 and a lower member 49 comprising a pair of horizontal plates are vertically arranged with a gap between the container 1 installed on the installation table 10 and the pressing plate 26 of the operation unit 18. And the bracket 5 fixed to the device frame 11
0. A resilient means 52, which is vertically movably supported by a guide rod 51 provided on a bracket 50 and is composed of a compression coil spring externally mounted on the guide rod 51, is interposed between the upper and lower members 48, 49, 48 is elastically supported with respect to the lower member 49 so as to maintain a gap. Therefore, the upper member 48 can be pushed down so as to overlap the lower member 49 against the resilient means 52. In such a configuration, the band-shaped film material 7 is passed through the gap between the upper and lower members 48 and 49, and openings 48a and 49a are opened in the upper and lower members 48 and 49 corresponding to the respective operation units 18. The openings 48a and 49a are formed by the pressing plate 26 and the hot blade 2
5 has an inner diameter enough to allow insertion, or an inner diameter sufficiently larger than that. A push rod 54 is slidably supported in the up and down direction on the moving frame 15 via a cylindrical guide body 53, and the pressing portion 55 at the distal end is positioned lower than the pressing plate 26 and is moved upward. A stopper 56 for stopping the pushing rod 54 in a state of facing the member 48 is provided, and a spring means 58 composed of a compression coil spring is interposed between the spring receiving portion 57 and the guide body 53.
Therefore, although the stopper 56 stops at the position where the pressing portion 55 faces the upper member 48 by the resilient means 58, the pushing rod 54 can be raised against the resilient means 58. It is. Other configurations are the same as those described above with respect to the first embodiment.
The same reference numerals as those in FIG.

FIG. 7 shows the operation based on the device of the second embodiment. When the moving frame 15 is lowered by the elevation driving means (not shown), first, the pressing portion 55 of the pushing rod 54 comes into contact with the upper member 48, and the upper member 48 is
2, the film material 7 between the upper and lower members 48 and 49 is sandwiched from above and below. That is, the spring force of the resilient means 58 of the pushing rod 54 is configured to be superior to the spring force of the resilient means 52 of the guide rod 51, and the upper member 48 is pressed down. Thus, the film material 7
The purpose of sandwiching the film material from above and below is to prevent the film material 7 from wrinkling in the film holding step and the punching step described later. It is preferable that one or both of the upper and lower members 48 and 49 are provided with a flow passage for a coolant such as cooling water therein to be cooled. Subsequently, when the moving frame 15 is lowered, the pressing plate 26 located at the lowermost end of the operation unit 18 is moved to the opening 48 a of the upper member 48.
After entering the lower member 4 while pressing the film material 7
9 and pressed against the opening edge 5 of the container 1 through the opening 49a (film holding step). At this time, as described above, since the film material 7 is sandwiched between the upper and lower members 48 and 49, the plurality of operating units 18 and 18
In the case where the pressing disks 26 do not descend correctly and simultaneously in synchronization with each other, and the plurality of pressing disks 26 press the film material 7 with a time lag therebetween,
Pulls the whole of the film material 7 toward the pressed portion, and when the other pressing plate 26 comes into contact with the film material 7, it is possible to prevent the film material 7 from wrinkling at that portion. During the downward movement of the moving frame 15, the pushing rod 54 slides relatively to the moving frame 15 against the resilient means 58, and the pressing member 55 keeps pushing the upper member 48.

When the moving frame 15 is further lowered, the hot blades 25 are opened by the openings 48 of the upper and lower members 48, 49.
a, 49a, the film material 7 is punched out to form the sealing piece 8 having the surplus edge 8a, as in the first embodiment, and the container 1 is heated while the surplus edge 8a is thermally shrunk by hot air. (Opening step). During the lowering of the moving frame 15, the pressing plate 2
6, the piston rod 24 slides relatively to the hot blade 25 against the resilient means 47, and keeps pressing the film material 7 (the sealing piece 8) against the opening edge 5 by the pressing plate 26. Further, the pushing rod 54 slides against the resilient means 58 and keeps pushing the upper member 48 by the pushing portion 55 in the same manner as described in the film holding step. After the above steps are completed, when the moving frame 15 is raised by the lifting drive means, the hot blade 25 and the pressing plate 2
6. The push rod 54 rises and returns to the original position. That is, the hot blade 25 rises together with the moving frame 15 and is pulled out from the openings 48a and 49a of the upper and lower members 48 and 49. When the spring of the resilient means 47 is extended by the raising of the moving frame 15 and the stopper 45 of the piston rod 24 is brought into contact with the mounting flange 19, the piston rod 24 provided with the pressing plate 26 is raised together with the moving frame 15. Also, when the moving frame 15 is raised, the resilient means 58
When the spring is extended and the stopper 56 is brought into contact with the guide body 53, the pushing rod 54 provided with the pressing portion 55 is raised together with the moving frame 15, whereby the upper member 48 is raised by the resilient means 52, A gap is formed between the upper and lower members 48 and 49 by retreating from the lower member 49, and it becomes possible to wind up a scrap from the film material 7 after punching.

FIG. 8B shows a third embodiment of the method of the present invention. As described above, the pressing plate 26 is lowered together with the lowering of the piston rod 24, and the film material 7 is placed on the opening edge 5 of the container 1. When pressed and held (film holding step), the film material 7 is brought into contact with the filling (fluid) 6 such as cream filled in the container 1. So,
As described above, when the hot blade 25 is lowered together with the heating block 22 and the film material 7 is punched out along the outer peripheral edge of the opening edge 5 to form a sealing piece 8 (punching step), the formed sealing piece 8 5 is attached to the filling material (fluid material) 6 in a state of being attached to the outside from the outside, in other words, a temporary fixing adhesive state. For this reason, in the third embodiment, whether or not the film material 7 is heat-shrinkable,
Therefore, the presence or absence of the hot air passage 37 and / or the refrigerant passage 32 does not matter in the structure of the device. Further, in the illustrated example, a configuration is shown in which the film material 7 is punched along the outer peripheral edge of the opening edge 5 by the hot blade 25. In this case, the film material 7 may be punched out at a position between the inner diameter and the outer diameter of the opening edge 5.

(Fourth Embodiment of the Method of the Present Invention) FIG.
Shows a fourth embodiment of the method of the present invention, in which a welding means 7a capable of thermally welding the opening edge 5 of the container 1 and the film material 7 to each other is provided. In the illustrated example, the film material 7
The welding means 7a is constituted by the heat-sensitive adhesive provided on the lower surface of the container 1. However, the heat-sensitive adhesive may be provided on the end face of the opening edge 5 of the container 1. Further, in the case of using the synthetic resin container 1, the material of the film material 7 may be selected so that the container 1 and the film material 7 can be thermally welded to each other.
In this case, it does not matter whether a heat-sensitive adhesive is present or not. It does not matter whether the film material 7 is heat-shrinkable. Therefore, the peripheral edge of the sealing piece 8 is moved to the opening edge 5 of the container 1 by the heat pressing portion 42 formed on a part of the pressing plate 26 or a part of the hot blade 25.
, And the peripheral edge of the sealing piece 8 is welded to the end face of the opening edge 5. In the first embodiment shown on the left side of the center line in FIG. 8C, the heating pressing portion 42a is formed on the pressing plate 26, and although not shown, the pressing plate 26 is provided with a heating means. (Accordingly, the first type shown in FIG.
The refrigerant path 32 as in the embodiment is not provided). Then, as described above, the pressing plate 26 is lowered together with the lowering of the piston rod 24, and the film material 7 is pressed against the opening edge 5 of the container 1 by the heating / pressing portion 42a (film holding step). 1 open edge 5
Are welded to each other. Subsequently, the heating blade 25 is lowered together with the heating block 22 as described above, and
When the sealing piece 8 is formed by punching the film material 7 along the outer peripheral edge of the sealing material (punching step), the formed sealing piece 8 is attached to the opening edge 5 from outside, and the peripheral edge of the sealing piece 8 is It is welded to the opening edge 5. In the second embodiment shown on the right side of the center line in FIG.
5. For example, by forming the inner peripheral portion of the thermal blade 25 near the blade edge portion 25a thick so as to have a small diameter, the step-like heating pressing portion 42a is formed. Then, as described above, the pressing plate 26 is lowered together with the lowering of the piston rod 24, and the film material 7 is pressed and held by the heating / pressing portion 42a against the opening edge 5 of the container 1 (film holding step). Then, the hot blade 25 is lowered together with the heating block 22, and the sealing material 8 is punched out of the film material 7 along the outer peripheral edge of the opening edge 5 by the cutting edge 25a (punching step). 42a presses the peripheral edge of the sealing piece 8 against the end face of the opening edge 5 of the container 1 and heats it. The sealing piece 8 formed by this is attached to the opening edge 5 from the outside, and The periphery is welded to the opening edge 5.

[0017]

According to the present invention, it is not necessary to manufacture and store a large number of sealing pieces in advance as in the prior art, and the opening edge 5 of the container 1 in which the filling material 6 is stored on a line of a manufacturer or the like.
In contrast, each time, the sealing piece 8 is automatically punched and formed from the film material 7 and at the same time, the sealing piece 8 can be automatically attached to the opening edge 5 of the container 1. .

[Brief description of the drawings]

FIG. 1 is a principle explanatory view showing one example of the method of the present invention, wherein (A) is a perspective view showing an installed container, and (B) is a film material facing an opening edge of the container. FIG. 7C is a perspective view showing a state in which a sealing piece is attached to the opening edge of the container from the outside after a film holding step and a punching step, and FIG.

FIG. 2 is an overall side view showing an example of the device of the present invention.

FIG. 3 is a longitudinal sectional view showing an operation unit in the apparatus shown in FIG. 2;

FIG. 4 is a longitudinal sectional view showing a first embodiment of the method of the present invention and showing a film holding step by an operation unit.

FIG. 5 is a longitudinal sectional view showing a first embodiment of the method of the present invention and showing a punching step by an operating unit.

FIG. 6 is a longitudinal sectional view showing an apparatus for carrying out the first embodiment of the method of the present invention.

FIG. 7 shows a first embodiment of the method of the present invention, and is a longitudinal sectional view showing a film holding step and a punching step at the same time.

FIG. 8 shows each embodiment of the method of the present invention. FIG. 8 (A) is a longitudinal sectional view showing the operation in the first embodiment and the second embodiment, and FIG. 8 (B) is a third embodiment. (C) is a longitudinal sectional view showing the operation of the fourth embodiment, showing a first example on the left side of the center line and a second example on the right side of the center line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 3 Opening cylinder part 5 Opening edge 6 Filling material 7 Film material 7a Welding means 8 Sealing piece 8a Excess edge 12 Fixed frame 13 Cylinder for achieving punching 14 Cylinder for achieving film holding 15 Moving frame 18 Operating unit 22 Heating block 24 Piston rod 25 Hot blade 26 Pressing plate 31 Resilient biasing means 42, 42a Heating press part 48 Upper member 49 Lower member 48a, 49a Opening 52 Resilient means 54 Push rod 55 Pressing part

Claims (7)

[Claims] 1. A method of manufacturing a package comprising a sealing piece having a contour substantially along the opening edge of a container in which a filling is stored and attached to the opening edge from the outside, with the opening edge being opened. A container installation step of installing a container in which the filler is stored, a film installation step of installing a film material near the opening edge in a state facing the opening edge, and a pressing plate having an outer peripheral shape substantially along the opening edge of the container A film holding step of pressing and holding the film material against the opening edge, and a tubular hot blade having a blade shape along the opening edge of the container is punched out of the film material along the opening edge to be externally attached to the opening edge. A method for manufacturing a package, comprising: a punching step of forming a sealed closure piece; and a retreating step of retreating the pressing plate and the hot blade from an opening edge of the container. 2. The method according to claim 1, wherein the filling material is a fluid contained in a filled state, and the film material is brought into contact with the fluid in the film holding step, and the sealing piece formed in the punching step is brought into close contact with the fluid. A method for manufacturing the package according to claim 1. 3. The method according to claim 1, wherein the film material is formed of a heat-shrinkable film, and in the punching step, a cylindrical hot blade having a blade shape slightly larger in diameter than the outer periphery of the opening edge of the container is opened from the direction facing the opening edge. Forming a sealing piece with an extra edge protruding from the outer periphery of the opening edge by moving toward the outer peripheral position of the sheet material and punching the film material, and blowing hot air toward the extra edge at the time of punching with a hot blade. 2. The excess edge is thermally contracted and tightened to the outer periphery of the opening edge.
Or the manufacturing method of the package of Claim 2. 4. A sealing means which is capable of thermally welding the opening edge of the container and the film material to each other, wherein the peripheral edge of the sealing piece is opened by a heat pressing portion formed on a part of the pressing plate or a part of the hot blade. 3. The method for manufacturing a package according to claim 1, wherein the edge is heated and pressed, and the peripheral edge of the sealing piece is welded to the opening edge. 5. A plurality of containers are arranged side by side, and a band-shaped film material is installed so as to straddle the group of arranged containers, and a plurality of pressing plates and heating blades provided corresponding to each container are simultaneously operated. 3. The method according to claim 1, further comprising the step of simultaneously attaching a sealing piece to each of the opening edges of the plurality of containers.
5. The method for producing a package according to claim 1. 6. A package manufacturing apparatus in which a sealing piece having a contour substantially along the opening edge of a container storing a filling material is attached to the opening edge from the outside, wherein the opening edge is opened. Container installation means for installing a container in which the filling is stored in a state, film installation means for installing a film material near the opening edge in a state facing the opening edge, and an outer peripheral shape substantially along the opening edge of the container A film holding means for pressing and holding the film material against the opening edge by the pressing plate, and a tubular hot blade having a blade shape along the opening edge of the container, by punching the film material along the opening edge from the outside to the opening edge. An apparatus for manufacturing a package, comprising: punching means for forming an attached sealing piece; and retreat means for retreating a pressing plate and a hot blade from an opening edge of a container. 7. A method for attaching a sealing piece having an outline substantially along the opening edge of a container to the opening edge from outside, wherein the container is installed with the opening edge opened, and the opening A film setting step of setting the film material in the vicinity of the opening edge in a state facing the edge, and a film holding step of pressing and holding the film material against the opening edge by a pressing plate having an outer peripheral shape substantially along the opening edge of the container, Punching the film material along the opening edge by a cylindrical hot blade having a blade shape along the opening edge of the container, a punching step of forming a sealing piece attached from the outside to the opening edge by a punching piece, and thereafter, A retreating step of retreating the pressing plate and the hot blade from the opening edge of the container.