JPH03234612A - Manufacture of vessel and its device - Google Patents

Abstract

PURPOSE:To produce continuously the vessel composed of an upper vessel-section and a lower vessel-section by a method in which a film is transferred horizontally, and the upper vessel-section is molded so as to become convex upward, and then it is covered with the lower vessel-section, and after the flange of the lower vessel- section has been bonded to the flange of the upper vessel-section, the flange of the flange-periphery is cut. CONSTITUTION:A film 11 is enrolled from a wind up member 11A and is intermittently transferred in horizontal direction by a film-transferring device 12. A heating device 14 is heated, and when the film is moved in the forming device 15, upper vessel-sections 3 are formed successively in four rows so as to become convex upward. Next, a lower vessel-section 2 drops on the upper vessel-section 3 and covers it by the covering device 17 of the lower vessel-section. After a heat sealing device 19 has press-bonded flanges 129, 39 and has heat-sealed them, a cooling press device 20 press-bonds them, whereby they are firmly bonded-by cooling. Next, a transversely cutting device 21 cuts the flange along the peripheral edge in transverse direction of the flange 2a, and a longitudiually cutting device 22 cuts the flange along the peripheral edge in longitudinall direction. The vessel 1 made by connecting the upper vessel-section 3 to the lower vessel-section 2 is cut off, and is sent out by a vessel-taking out device 23.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention comprises a lower container section provided with a flange around an opening edge, a flange joined to the flange of the lower container section around the opening edge, and The present invention relates to a method and apparatus for manufacturing a container comprising an upper container section shaped to fit into the lower container section.

[Conventional technology]

The present applicant previously developed a container 1 shown in FIGS. 13 and 14 and filed a patent application (see Japanese Patent Laid-Open No. 1-70372). This container 1 consists of a lower container section 2 which has a shape-retaining property made by plastic injection molding or the like, and a flexible upper container section 3 which is molded from a plastic film. has flanges 2a, 3a around the opening edge, and these flanges 2a,
The container 1 is assembled by butting and sealing the parts 3a. Note that 4 in Figure 1 is the pouring inlet.

The container 1 can be suitably used as an ink cartridge, and when filled with contents, the upper container section 3 occupies a position facing the lower container section 2 as shown in FIGS. 13 and 14. When the contents are sucked out from this container 1, the upper container section 3 fits into the lower container section 2 as shown in FIG. It has the advantage that it can be used in many ways.

Normally, in manufacturing this type of container 1, a lower container section 2 and an upper container section 3, each molded into a predetermined shape, are butted together so that their flanges 2a and 3a are in contact with each other, as shown in FIG. The method used was to join the flanges by heat sealing or the like.

[Problem to be solved by the invention]

However, the lower container section 2
It is difficult to butt the upper container section 3 and the upper container section 3 so that their flanges overlap, and automation requires a complicated handling mechanism.

In addition, the flexible upper container section 3 is usually made by vacuum forming a plurality of pieces into a wide film, but when the individual upper container sections are separated from the film after forming, the upper container sections may be deformed due to residual stress, etc. (Specifically, the central part of the opening edge is deformed inward), and there is also the problem that it is difficult to correctly overlap the flange with the flange of the lower container section.

The present invention has been made in view of these problems, and provides a container manufacturing method and apparatus that can easily and continuously manufacture a container consisting of a lower container section and an upper container section with the above-described structure. The purpose is to

[Means to solve the problem]

The present invention comprises a lower container section having a flange around the opening edge, and an upper container section having a flange around the opening edge joined to the flange of the lower container section and having a shape that fits into the lower container section. A method of manufacturing a container comprising:

A long film is pulled out from the winder and run horizontally intermittently, and along the way, a part of the film is formed to be convex upward to form an upper container section, and a part of the film is formed on the upper container section. A lower container section previously formed into a predetermined shape is placed over the top, a flange of the lower container section is joined to a flange of the upper container section formed on the film, and then the film is cut along the periphery of the flange, The gist of the present invention is a method for manufacturing a container in which the vF feature includes separating a container consisting of a lower container section and an upper container section from the film and discharging the container.

The present invention also provides a lower container section having a flange around the opening edge, and an upper container section having a flange around the opening edge joined to the flange of the lower container section and having a shape to fit into the lower container section. An apparatus for manufacturing a container consisting of.

A film transport means for pulling out a long film from a winder and transporting it horizontally and intermittently.

The following devices are arranged on the transport path of the film transported by the film transport means.

a heating device that heats a portion of the film;

a molding device for molding the portion of the film heated by the heating device to form an upwardly convex upper container section on the film; and a molding device for forming an upwardly convex upper container section on the film; A lower container section covering device that covers a lower container section molded into a predetermined shape from above, a heatnol device that joins the flange of the upper container section to the flange of the upper container section formed on the film, and the film is joined to the film. a transverse cutting device for cutting the film along the lateral periphery of the flange of the lower container section joined to the film; and a longitudinal cutting device for cutting the film along the longitudinal periphery of the flange of the lower container section joined to the film; The gist is a container manufacturing apparatus having a discharge device for discharging a container separated from the container.

Note that in this specification, the term 3 lateral directions refers to a direction in a plane parallel to the film being conveyed horizontally and perpendicular to the running direction of the film, and 1 direction refers to a direction parallel to the running direction of the film. It means.

[Effect]

In the container manufacturing method and apparatus having the above configuration, the film forming the upper container section is pulled out from the roll and conveyed horizontally, and during the process, the upper container section is shaped into a G shape so as to be upwardly convex. By covering it with a lower container section, joining the flange of the lower container section to the flange of the upper container section formed of film, and then cutting the film around the flange,
A container consisting of an upper container section and a lower container section can be manufactured in succession.

Here, since the upper container section is formed into a continuous film so that it is convex upwards, the lower container section is placed on top of it, and by pressing it, the lower container section is automatically positioned at a predetermined position relative to the upper container section. can do. In addition, at this time, the upper container section is molded into a part of the film and is not separated, so there is no deformation due to residual stress, and the flange of the upper container section is tightly aligned with the flange of the lower container section. It can be stacked with

Therefore, a mechanism for correctly butting the flanges of the lower container section and the upper container section can be realized with a simple structure.

〔Example〕

The present invention will be described in further detail below with reference to embodiments shown in the drawings.

FIG. 1 is a schematic side view of a container manufacturing apparatus according to an embodiment of the present invention. This apparatus is capable of continuously manufacturing a container 1 consisting of a lower container section 2 and an upper container section 3, as shown in FIGS. 13 to 16.

In FIG. 1, 11 is a soft packaging material, i.e., a flexible film, for forming the upper container section, 11A is a winder for supplying the film 11, and 12 is a handle for gripping both ends of the film 11 pulled out from the winder 11A. This is a film transport device that transports the film horizontally and intermittently. As the film 11 used in this example, a resin laminated film (thickness of about 0.41 mm) is used that can be used to form the upper container section and is heat-sealable as will be described later. As shown in FIG. 2, a width that allows four upper container sections 3 to be formed in one width direction is used. The film conveyance device 12 is equipped with a chain that runs intermittently while gripping both ends of the film 11, and the amount of movement of the chain at one time is determined by the length of the upper container section 3 formed into the film 11 (see FIG. 3). is determined to be approximately equal to.

Film 11 transported by film transport device 12
A heating device 214. Molding device 15. Pinhole detection device 16. Lower container section covering device 17, positioning and detection device 18. Heat sealing device 19, cooling press device 20. Transverse cutting device 21. Vertical cutting device 22. A container discharge device 23 and the like are provided. below.

Each device will be explained.

(1) Heating device 14 The heating device 14 is a hot plate 2 placed above and below the film 11.
5, a mounting plate 26 holding the heating plate 25, and a spring 27 disposed between the heating plate on the lower side of the film and the mounting plate;
It is equipped with driving means (not shown) for vertically moving the upper and lower attachments 26, respectively, and the portion of the film 11 to be molded can be sandwiched and heated by the upper and lower heating plates 25, 25.

(2) Molding device 15 The molding device 15 is of a plug-an-ost vacuum forming type, and as shown in an enlarged view in FIG. It has a female mold 30 and a driving means (not shown) for vertically moving the molding box 29, and is located below the film 11.
The molding box 32 is provided in a fixed position, a plug 33 is provided in the molding box 32 so as to be movable up and down, and a driving means 34 for moving the plug 33 up and down is provided. The shape of the recess of the female mold 30 is adapted to the outer shape of the upper container section 3 to be molded. On the other hand, the outer shape of the plug 33 is determined so that when the film 11 is pushed into the female die 30 by the plug 33, a gap 35 is formed on the sloped surface thereof. Further, a vacuum port (not shown) is formed in the recessed portion of the female mold 30, and a vacuum supply source is connected to the vacuum port. Thus, when the heated film 11 is conveyed into the molding device 15 which is in the open state as shown in FIG.
and 32 to sandwich the film 11 and then push it into the female mold 30 with the plug 33 as shown in FIG. The film 11 can be formed with an upwardly convex upper container section 3.

Here, the female mold 30 and the plug 33 are respectively connected to the film 1
Four upper container sections are provided in each width direction, so four upper container sections can be molded in one molding. Further, the female die 30 and the plug 33 are arranged at appropriate intervals so that the longitudinal direction of the upper container sexidine 3 is the running direction of the film 11. Thus, in conjunction with the intermittent running of the film 11, the molding device 15
By operating the film 11, the images shown in FIGS.
As shown in FIG. 5, the upper container sections 3 each have four rows.
It is formed so as to leave a middle ear portion 36 of an appropriate width between each row. In FIG. 3, hatched portions indicate the flanges 3a of each upper container section 3, and arrow A indicates the running direction of the film 11. Also, film 11
Since the amount of feed per time is set approximately equal to the length of the upper container section 3, the upper container section 3 is formed so that its flanges 3a are in contact with each other in the film running direction.

9 In this embodiment, the upper container section 3 is molded using a combination of molding using the plug 33 and vacuum molding, but the molding method is not limited to this. Only plug molding, only vacuum molding, only pressure molding, or any of these Any combination is possible.

(3) Pinhole detection device 16 In FIG. 1, a pinhole detection device 16 is shown.

A detection electrode 37 which is disposed above the film 11 and covers the entire outer surface of the upper container section 3 formed on the film 11, and a detection electrode 37 which is disposed below the film 11 and has a shape that enters into the upper container section 3. high voltage electrode 38 and one electrode 3
7. Drive means for moving up and down 38 (not shown)
etc., and one electrode 3738 is connected to the upper container section 3.
The presence or absence of a pinhole can be detected by placing it inside or outside, applying a high voltage, and observing whether or not a discharge occurs.

Note that a pinhole detection device other than this method may be used.

(4) Lower container section covering device 117 In FIG. 1, the lower container section covering device 17 includes a pair of shutters 40 extending above the film 11 in a direction perpendicular to the direction of the 8th line of the film, that is, in a transverse direction. It is provided with means (not shown) for opening and closing. This shutter 40 is arranged to support both ends of the molded lower container section 2, and by opening the shutter 40, the lower container section 2 held therein is dropped, and the upper container section molded on the film 11 is It can be used to cover 3.

A feeding device for feeding the lower container section 2 to the shutter 40 is provided in the vicinity of the shutter 40 .

6 and 7 show the feeding device 42. FIG. The supply device 42 includes a support conveyor 43 that carries a large number of stacked lower container sections 2 and moves little by little, and a vertical movement device that stops the advancement of the second and subsequent lower container sections 43 among the lower container sections 2 on the support conveyor 43. a possible stopper 44, a guide 45 for regulating the lateral position of the lower container section 2 on the supporting container section 43, a suction head 46 for suctioning the lower container section 2 at the tip and pulling it out to the right in FIG. Drive unit (not shown) and support controller 7
43, a transfer device 50 that transfers the upper container section 2 on the support stand 47 to the guide rail 48, which is arranged on the extension line of the shutter 40, and It has a transfer device 51 and the like for transferring the lower container section 2 to a predetermined position on the shutter 40.

The transfer device 50 includes a suction head 52 and this suction head 5.
2, the rotating shaft 54 holding the supporting plate 53, and the rotating shaft 54 so that the suction head 52 reciprocates from the position indicated by the solid line to the position indicated by the two-point score m52A.
It has a driving means (not shown) for reciprocating rotation.

The transfer device 51 includes a rotating shaft 56 arranged parallel to the guide rail 48 and a lower container section 2 attached to the rotating shaft 56.
It is equipped with a drive device that reciprocates the two rotation shafts 56 and a plurality of rods 57 attached at intervals that can sandwich the two rotation shafts, and a rotation device (both not shown) that reciprocates the rotation shafts 56.

The supply of the lower container section 2 by the apparatus having the above configuration is carried out as follows. That is, in FIG.

A large number of lower container sections 2 are set on the support conveyor 43 at appropriate intervals. These lower container sections 2 are fed little by little to the right by a support conveyor 43. In FIG. 7, the suction head 46 shown by the two-dot chain line adsorbs the leading edge of the lower container section 2 on the support container 743, and then moves to the right, thereby removing the lower container section 2. Pull it out onto the support stand 47. At this time, the second and subsequent lower container sections 2 are prevented from moving by the stopper 44. Next, the suction nozzle 52, which was waiting at the position shown by the solid line, moves to the lower container section 2.
The reception is taken.

As the rotating shaft 54 rotates, the suction head 52 moves to the position indicated by the two-dot chain line 52A, and the lower container section 2
The paper is transferred onto the guide rail 48 with the paper facing downward.

At this time, the rod 57 of the transfer device 51 is waiting at the position indicated by the two-dot chain line. Thereafter, the suction head 52 returns to its original position for the transfer of the primary lower container section 2.

After the lower container section 2 is transferred onto the guide rail 48, the rod 57 is lowered to the position shown by the solid line by rotation of the rotating shaft 56, and then the rotating shaft 56 is moved above the film 11. As a result, the lower container section 2 sandwiched between the baffles 57 moves on the guide rail 48 and the shutter 40, and is positioned above the upper container section 3 of the film 11. Thereafter, by the rotation and axial movement of the rotation shaft 56, the rod 57 returns to its original position and the lower container section 2 of the 9th order
The lower container section 2 is supplied to a predetermined position on the shutter 40 in more than one manner.

(5) Positioning and detection device 18 The positioning heat detection device 18 is as shown in FIG.

An elevating member 61 having a guide member 60 shaped to fit the outer surface near the flange 2a of the lower container section 2, an elevating mechanism (not shown) that reciprocates the elevating member 61 up and down, and a center portion of the elevating member 61. A detection member 62 is provided to be movable upward and downward, a spring 63 urges the detection member 62 downward, and a detection member 62 detects when the detection member 62 is in an elevated position relative to the elevating member 61. When the elevating member 61 is lowered, the guide member 6
0 can push down the lower container section 2 into position relative to the upper container section 3. Further, at this time, the detection member 62 hits the upper end of the lower container section 2 and is prevented from descending, and the sensor 64 detects the position of the detection member 62, thereby detecting that the lower container section 2 is in a predetermined position. be able to. Note that a support plate 65 is provided below the film 11 and fixed at a fixed position.

(6) Heat sealing device 19 The heat sealing device 19 is as shown in FIG.

A heating plate 67 with a heating surface 67a corresponding to the flange 3a of the upper container section 3 (see FIG. 3) and its thermal Fi.
, 67, a driving means (not shown) for reciprocating the mounting plate 68 up and down, a protective tape 69 for protecting the heating surface 67a, and a flange 2a of the lower container section 2. It includes a hot plate 70 having a heating surface 70a, a mounting plate 71 that supports the hot plate 70, and a driving means (not shown) that reciprocates the mounting plate 71 up and down.
By sandwiching the flanges 2a and 3a between the upper and lower hot plates 67 and 70, the joint surfaces of both flanges can be heat-sealed. Note that it is not necessarily necessary to arrange hot plates on both sides of the heat plates of the flanges 2a and 3a.
The hot plate may be placed only on the thin flange side, that is, the flange side of the upper container section 3, and the opposite side may be used simply as a pressurizing plate, but if the hot plate is placed on both sides as in this embodiment, the heat sealing This is preferable because it enables good heat sealing even for difficult materials.

Although only one heat sealing device 19 is shown in FIG. 1, a plurality of heat sealing devices 19 are connected to the film 11
It may be arranged in a running path and heated in multiple stages.

Multi-stage heating enables reliable heat sealing in a single time, and has the advantage of shortening the stopping time of the film 11.

(7) Cooling press equipment w20 The cooling press device 20 is as shown in FIG.

Cooling plate 73 provided at a fixed position on the lower surface side of the film 11
and a cooling plate 74 provided on the upper surface side of the film 11.
and a mounting plate 75 that holds this cooling plate 74.

A drive means (not shown) is provided to move this mounting plate 75 up and down by means of cooling plates 73 and 74.

Flange 2a3a heat-welded by heat sealing device 19
By pressing and cooling, it is possible to bond firmly.

(8) Transverse cutting device 21 As shown in FIGS. 11 and 12, the transverse cutting device 21 is
A receiver member 77 with grooves 77a-t located below the film 11 and extending transversely to the film 11; and a support member 7 disposed laterally above the film 11.
8, four knives 79 attached to the support member 78, and a drive device (not shown) that moves the support member 78 up and down and reciprocates in the lateral direction of the film 11.
The knife 79 descends from above the film 11 and pierces the film 11.

By moving laterally while being guided by the receiver * 77 a7, the film 11 can be cut along the lateral periphery 80 of the flange 2a of the lower container section 2. At this time, the cutting range by each knife 11 is set to be the lateral length range l of the flange 2a, so that the middle ear portion 36 of the film 11 can be left uncut.

(9) Vertical cutting device 22 As shown in FIG. The guide (not shown) is arranged to guide the tip of the rotary blade 83, and the film 11 can be cut in the longitudinal direction, that is, in the running direction. here.

The rotary blades 83 are provided corresponding to each of the longitudinal peripheral edges 85 (see FIGS. 10 and 11) of the flange 2a of the lower container section 2. Therefore, the film 11 can be continuously cut along the longitudinal periphery of the flange 2a of the lower container section 2 as the film 11 runs.

α [Container discharging device 23 The container discharging device 23 consists of a discharging conveyor disposed downstream of the vertical cutting device 22, and can discharge the container 1 separated from the film 11 by being cut by the vertical cutting device 22. .

0υ In addition, downstream of the vertical cutting device 22, the film after the container 1 has been cut off from the film 11 (the middle ear part 36 and the ears on both sides)
A selvage winding machine 87 is provided for winding up. In addition,
Instead of the selvage winder 87, a blower or the like may be used to collect the selvage.

Next, a container manufacturing method using a container manufacturing apparatus configured as described above will be described.

In FIG. 1, a film 11 is pulled out from a take-up 11A and is intermittently transported in the horizontal direction by a film transport device 12. During this conveyance, when the film 11 stops, the upper and lower heating plates 25, 25 of the heating device 14 sandwich the film 11 and heat the film. Then,
When the heated portion moves into the adjacent molding device 15, the molding device 15 is activated to mold the film 11 to form the upper container section 3 in an upwardly convex manner. As a result, four rows of upper container sections 3 are successively formed on the film 11 as shown in FIGS. 3 to 5.

The formed upper container section 3 is connected to the pinhole detection device 1
6 and stops, the pinhole detection device 16 is activated to detect whether there is a pinhole in the upper container section 3. If a pinhole is detected, the detection signal will be transmitted to the device 1 downstream of the container section 3.
It is used as a signal to stop the operation of these devices when 7.18.19.20 is reached.

When the upper container section 3, which has been determined to be normal by the pinhole detection device 16, moves downstream and stops at the position of the lower container section covering device 17, the shutter 40 opens and the upper container section 3 is placed on standby at a predetermined position above the shutter 40. The lower container section 2 falls onto and covers the upper container section 3. At this time, since the upper container section 3 is upwardly convex, the lower container section 2 is placed over the upper container section 3 at the correct position by simply dropping the lower container section 2.

Next, when the upper container section 3 covered with the lower container section 2 moves under the positioning and detection device 18 and stops, the first positioning and detection device 18 is activated to push down the lower container section 2 and move its flange 2a upward. Container section 3
flange 3ae (see Fig. 3). At the same time, the detection member 62 contacts the top of the lower container section 2 to determine the presence or absence of the lower container section 2. If, due to some trouble, the lower container section 2 becomes the upper container section 3,
If not supplied above.

The absence of the lower vessel section is detected. This detection signal also indicates that the container section 3 is connected to the downstream device 19°20
is used as a signal to stop the operation of these devices when .

Upper container section 3 covered with lower container section 2
reaches the heat sealing device 19 and stops.

The heat sealing device 19 is operated to heat and press the stacked flanges 2a and 3a to heat seal them.

At this time, the upper container section 3 formed from the flexible film remains molded within the film 11 and is not separated from the film 11, so it will not deform even if there is residual stress, and therefore the lower By simply pressing the container section 2 over the upper container section 3, the flanges 2a and 3a of both are overlapped in the correct position.
It is heat sealed as is.

After that, when moving to the position of the cooling press device 20, the cooling press device 20 compresses and cools the heat-sealed portion.

As a result, both flanges 2a and 3a are firmly bonded.

Then, as shown in FIG. 1O, a number of lower container sections 2 are adhered to the film 11.

Next, the transverse cutting device 21 is activated while the film 11 is stopped and cuts the film 11 along the lateral periphery 80 (see FIG. 10) of the flange 2a of the lower container section 2 which is glued to the film 11. do. At this time, the ears on both sides of the film 11 and the middle ear 36 are not cut, so these ears remain continuous.

Thereafter, the longitudinal cutting device 22 cuts the film 11 along the longitudinal periphery 85 (see FIG. 10) of the flange 2a of the lower container section 2. As a result, each flange 2a
The film 11 is cut along the entire periphery.

The container 1 formed by joining the lower container section 2 and the upper container section 3 in the state shown in FIG. 16 is separated from the film 11. The separated container 1 is discharged onto a container discharge device 23 and sent out by the container discharge device 23.

Note that the film 11 (the ear portions on both sides and the middle ear portion 36) after the container l is separated is wound up by the ear winding device 87.

In the manner described above, containers 1 in the state shown in FIG. 16 are continuously manufactured. Note that when the container 1 is filled with contents, the upper container section 3 swells.

The state will be as shown in FIGS. 13 and 14.

〔Effect of the invention〕

As described above, according to the method and apparatus of the present invention, while the film is intermittently running, an upper container section is formed on the film, 1. The lower container section is then placed on top of the upper container section, and 1. the flanges of both are joined. after that.

By cutting the film along the periphery of the flange, the container consisting of the upper container section and the lower container section can be separated, which has the effect of automating the manufacturing of the container.

In addition, since the lower container section is placed over the upper container section, which is formed to be convex upward, and the flanges of both are overlapped, the flanges of both can be accurately overlapped by a simple mechanism. This has the effect that the configuration can be simplified and a good product can be manufactured.

[Brief explanation of drawings]

FIG. 1 is a side view schematically showing a container manufacturing apparatus according to an embodiment of the present invention, FIG. 2 is a schematic sectional view showing an enlarged molding device 15 provided in the manufacturing apparatus, and FIG. 3 is a side view schematically showing a container manufacturing apparatus according to an embodiment of the present invention. A schematic plan view showing the film after being subjected to a molding operation by a molding device, FIGS. 4 and 5 are respectively a sectional view taken along the ■-rV arrow in FIG. 3, and a sectional view taken along the V-V arrow in FIG. A schematic plan view of the lower container section covering device 17 and the lower container section supplying device 42 disposed in the vicinity of the lower container section covering device 17 of the manufacturing apparatus, FIG. 7 is a schematic side view of the lower container section feeding device 42, and FIG. A schematic cross-sectional view of the provided positioning and detection device 18, FIG. 9 shows the heat sealing device 1 provided in the above manufacturing device.
9 is a schematic sectional view, FIG. 10 is a plan view showing the state after the lower container section is covered and bonded to the upper container section formed on the film, and FIG. 11 is a schematic cross-sectional view of the transverse cutting device 21 provided in the above manufacturing apparatus. 12 is a side view thereof, FIG. 13 is a schematic perspective view showing a container l manufactured by the above manufacturing apparatus, FIG. 14 is a schematic sectional view of the container, and Figures 1'5 are the container l. The upper container section 3 the lower container section 2
FIG. 16 is a schematic perspective view showing the state in which it is pulled in, and FIG. 16 is a schematic cross-sectional view thereof.

Claims (2)

[Claims] (1) Consisting of a lower container section having a flange around the opening edge, and an upper container section having a flange around the opening edge joined to the flange of the lower container section and having a shape that fits into the lower container section. A method for manufacturing a container, in which a long film is pulled out from a roll and intermittently runs horizontally, and a part of the film is formed into an upwardly convex shape along the way to form an upper container section. a lower container section previously formed into a predetermined shape is placed over the upper container section, the flange of the lower container section is joined to the flange of the upper container section formed on the film, and then the film is A method for producing a container, comprising cutting along the periphery of the flange, separating the container consisting of a lower container section and an upper container section from the film, and discharging the container. (2) Consisting of a lower container section having a flange around the opening edge, and an upper container section having a flange around the opening edge joined to the flange of the lower container section and having a shape that fits into the lower container section. An apparatus for manufacturing containers, which includes a film transport means for pulling out a long film from a winder and transporting it horizontally and intermittently, and the following equipment arranged in the transport path of the film transported by the film transport means. various devices, namely: a heating device that heats a portion of the film; a molding device that molds the portion of the film heated by the heating device to form an upwardly convex upper container section on the film; a lower container section covering device that covers from above a lower container section formed in a predetermined shape in advance over an upper container section formed on the film so as to be convex upward; and a flange of the upper container section formed on the film. a heat sealing device for joining the flanges of the upper container section; a transverse cutting device for cutting the film along the lateral circumference of the flange of the lower container section joined to the film; and a cross-cutting device for joining the film to the film. A container manufacturing apparatus comprising: a longitudinal cutting device for cutting along the longitudinal periphery of a flange of a lower container section; and a discharging device for discharging the container cut from the film.