JP3476040B2 - Method and apparatus for manufacturing composite container - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for producing a composite container consisting of a plastic inner container and a paper outer container.

[0002]

2. Description of the Related Art Polyethylene terephthalate (hereinafter also referred to as PET) containers, so-called PET bottles, are widely used as containers for selling drinking water. PE
Since the T bottle is lighter in weight than the glass container, it is easy to transport and store, and is advantageous in terms of manufacturing cost. However, if it is discarded as it is or buried in the soil, it will not dissolve in water, will not oxidize, and will not be decomposed by microorganisms, and therefore will maintain its form for a long time. Moreover, PET bottles are consumed in extremely large quantities. This applies not only to PET bottles, but to all plastic containers, and the resulting environmental pollution is a serious problem.

[0003]

Problems to be Solved by the Invention 1 to alleviate this problem
One way is to use as little plastic as possible in the container. However, if the amount of plastic used is simply reduced, the mechanical strength of the plastic container will decrease, and it will no longer function as a container. Therefore, attention has been paid to a composite container in which paper is combined. This composite container is formed by covering a plastic inner container with a paper outer container, and compensates for the strength decrease of the inner container due to the reduction of the usage of plastic by the strength of the paper outer container. . Needless to say, paper is easily broken down by water, reduced to plant fibers, and decomposed by microorganisms. Therefore, the composite container using paper is effective in mitigating the problem of environmental pollution. The applicant is
Japanese Patent Application No. 7-99782 has already applied for a manufacturing method capable of manufacturing a composite container having such advantages at low cost. It is an object of the present invention to provide a method and apparatus for manufacturing a composite container, which eliminates cycle loss and increases the manufacturing efficiency when a large number of composite containers are manufactured by the manufacturing method of the previous application.

[0004]

In order to achieve the above object, the present invention is a method for producing a composite container comprising an inner container made of plastic and an outer container made of paper, wherein the inner container is heated. Positioning and holding the elongated preform, on the virtual circumference in a plane including an imaginary line extending in the longitudinal direction of the preform passing through substantially the center of the cross section of the preform, the mouth side of the outer container is At least two or more bottom molds that hold the bottom of the outer container are swung toward the outside in the radial direction of the virtual circumference, and a bottom mold that holds the outer container is
Stop at the position where the mouth side of the outer container faces the preform, move at least one of the bottom mold and the preform in the direction of approaching each other, and insert the preform inside the outer container, except the bottom of the composite container. The split mold for molding the part of is combined with the bottom mold, the drawing rod is inserted into the preform, the fluid is pressurized and injected, and the stretch blow molding is performed to obtain a composite container. While the container is being molded, the bottom part of the outer container is held by a bottom mold that stops at a turning position away from the preform.

Further, the present invention is characterized in that the heated elongated preform is positioned and held so that the mouth of the preform is directed downward and the imaginary line is directed vertically. . Further, the present invention is characterized in that the turning of the bottom mold is performed in a vertical plane. Further, the present invention is characterized in that the preform is inserted into the outer container by moving the bottom mold toward the preform.

Further, the present invention is an apparatus for manufacturing a composite container comprising an inner container made of plastic and an outer container made of paper, wherein a heated elongated preform is made into a vertical shape, and a downward facing pouch is formed. Preform support means for supporting the mouth of the reform, and above the preform support means,
A swivel member supported so as to swivel in a vertical plane, a plurality of slide mechanisms attached to the swivel member at intervals in the circumferential direction of the swivel member, and sliding a bottom die on the swivel member; The bottom die is supported by the slide mechanism so as to hold the bottom portion of the outer container so that the mouth side of the outer container is directed to the outer side in the radial direction of the revolving locus, and Each slide mechanism is a container molding position where the preform is inserted inside the outer container by sliding the bottom mold downward at the stop position of the turning member with the mouth side of the outer container held in the bottom mold facing downward. Is attached to the swiveling member so that the split mold for molding a portion other than the bottom of the composite container at the container molding position, and a split mold drive for joining and separating the split mold to the bottom mold. hand Doo is characterized in that it is arranged.

The present invention also includes a stretch rod inserted into the preform through the preform supporting means,
Pressurized fluid supply means for supplying a pressurized fluid to the inside of the preform through the preform supporting means are provided. Further, the present invention is characterized in that the two slide mechanisms are provided with two phases shifted by 180 degrees.

[0008]

The stretch blow molding is performed on the bottom mold side which is stopped at the lower swivel position and holds the outer container, and while the stretch blow molding is being performed, the stretch blow molding is stopped at a swivel position different from the lower swivel position. The outer container is attached to the bottom mold. Therefore, when manufacturing a large number of composite containers, it is not necessary to specially secure the time for mounting the outer container on the bottom die, and the composite containers can be efficiently manufactured without cycle loss.

[0009]

EXAMPLES Next, examples of the present invention will be described. First, the composite container manufactured by the present invention will be described.
1A is a plan view of the composite container, FIG. 1B is a front view of the same,
(C) shows the same bottom view. This composite container 70 has a bottom 5
0, body 52, mouth 56, and body 52 and mouth 56
And a shoulder 54 between. The bottom portion 50 has a substantially square shape, and correspondingly, the body portion 52 has a substantially square cross section.
The cross-sectional area of the shoulder portion 54 becomes narrower as it goes upward, and at the narrowest point, it is connected to the mouth portion 56 having a cylindrical cross-section. The outside of the periphery of the bottom portion 50 and the outer portion of the body portion 52 and the shoulder portion 54 are each made of an outer container (also called a carton) 58 made of paper, while the bottom portion 50 and the body portion 52, the inside of the shoulder portion 54 and the mouth portion 56. Is composed of a PET inner container 60.

The outer container 58 made of paper has a shape as shown in FIG. 2A before being molded into a composite container. That is, the outer container 58 has four body pieces 58d that are vertically long rectangular parallelepipeds, shoulder pieces 58a that are connected to the upper ends of the body pieces 58d, and bottom pieces that are connected to the lower ends of the body pieces 58d. 58b, and one sheet of paper is adhered at the margin portion 58c. Such an outer container 58 is flattened by folding the body piece 58d as shown in FIG. 2 (B) before being attached to the mold, and thus a large number of outer containers are flattened. 58 are stacked and stored in the outer container storage portion. As shown in FIG. 1, the inner container 60 includes a bottom portion 50A, a body portion 52A, and a shoulder portion 54, which form an inner portion of the bottom portion 50, the body portion 52, and the shoulder portion 54 of the composite container 70.
A and a mouth portion 56, and a collar 62 is formed on the mouth portion 56.

Next, the outline of the method of the present invention will be described with reference to FIG. Reference numeral 34 is a preform that becomes the inner container 60. The preform 34 is a PET bottomed preform, and is produced by injection molding or extrusion blow molding. The preform 34 has an elongated shape, and the preform 34 is supported by the supporting means 105 with the mouth portion 56 facing downward and the longitudinal direction thereof in the vertical direction at the position (a), and the supporting means 105 is at the position (b). The preform 34 is heated to about 90 ° C. by being horizontally moved, and after being heated, it is horizontally moved to the position of (c) and stopped. On the other hand, the two bottom molds 2 are intermittently rotated in the vertical plane above the preform 34 at the position (C). And
The bottom mold 2 to which the outer container 58 is attached rotates to stop on the preform 34, and then the bottom mold 2 is lowered to insert the preform 34 into the outer container 58. next,
The pair of split molds 20 move horizontally and are combined with the bottom mold 2.

When the molds are assembled, the preform 34
The drawing rod is inserted into the inside of the preform 34 through the mouth portion 56 of the preform 34, and the preform 34 is stretched in the longitudinal direction thereof. At the same time, air is injected under pressure into the preform 34 from the mouth portion 56, and the preform 34 is In the mold, ie
It expands in the outer container 58. As a result, a composite container 70 is obtained in which the inner container 60 is molded and the outer surface thereof is in close contact with the inner surface of the outer container 58. Then, the mold is released and the supporting means 1
05 horizontally moves to the position (a), and the composite container 70 is taken out at the position (a). On the other hand, while manufacturing such a composite container 70 in the lower position, the outer container 58 is mounted on the bottom mold 2 stopped upward. That is, while the stretching process and the blowing process are performed at the lower position, the outer container 58 to be used next is attached to the bottom mold 2 at the upper position. Therefore, it is possible to eliminate cycle loss and efficiently manufacture the composite container 70.

Next, the method according to the present invention will be described in detail with reference to the apparatus with reference to FIGS. 4 to 6. 4 is a front view of the composite container manufacturing apparatus, FIG. 5 is a side view of the same, and FIG. 6 is a plan view of the same. The composite container manufacturing apparatus 102 includes a base 104,
On the base 104, a support means 10 for supporting the preform 34 with the mouth portion 56 facing downward and the longitudinal direction thereof being oriented in the vertical direction.
5, the supporting means 105 is moved in the horizontal direction by the moving mechanism 106, and the turning mechanism 108 of the bottom mold 2 is provided above the base 104. The support means 105
Since a known holder or the like used in stretch blow molding is used, detailed description thereof will be omitted.

The moving mechanism 106 is constructed by using a so-called cable bear, and the supporting means 105 is shown in FIGS.
It is horizontally moved to the positions (a), (b), and (c). The turning mechanism 108 is provided via two vertical plates 110 that are erected on the base 104 in parallel with each other. Then, the rotary shaft 1 is provided at an intermediate portion in the vertical direction between the two vertical plates 110.
12 is rotatably supported with its axis centered in the horizontal direction, and the rotary shaft 112 is intermittently rotated by 180 degrees by a servomotor 114 arranged facing the end of the rotary shaft 112. Rotating shaft 11 that can be placed between two vertical plates 110
A flange-shaped turning member 116 is fixed to the two parts, and two sliding mechanisms 118 are attached to the turning member 116.

The two slide mechanisms 118 are pivoted so as to be positioned on both sides of the rotary shaft 112, as shown in an enlarged view of the slide mechanism portion in FIG. 7 and an enlarged view of the arm and the bottom die portion in FIG. Each of the slide mechanisms 118 provided at the members 116 is supported by a servo motor 120 fixed to the turning member 116, a slide member 122 that moves up and down by driving the servo motor 120, and an arm 123 on the slide member 122. It is composed of the bottom mold 2 etc.,
The slide member 122 is supported by a linear guide (not shown) or the like so as to be linearly movable.

Now, the bottom mold 2 will be described. Figure 9
(A) is a plan view of the bottom mold, (B) is a front view, and (C) is a bottom view. The bottom mold 2 is the composite container 7 shown in FIGS. 4 and 5.
A mold for molding the bottom portion of 0, and has a recess 4 for inserting the bottom portion 50 of the outer container 58 and holding the outer container 58. The recess 4 is a square having the same cross-sectional shape as the outer container 58, and the dimension thereof is the same as or slightly larger than the cross-sectional dimension of the outer container 58. The four side walls 4 a of the recess 4 are for molding the side portions of the composite container 70 close to the bottom of the body 52, and each side wall 4 a.
An opening 4b is formed at the center of a. Also, the bottom mold 2
Four openings 2a are formed on the bottom surface of each of the openings at positions corresponding to the four openings 4b, and the openings 4b and the corresponding openings 2a are connected by passages 2b. The center of the bottom of the recess 4 is slightly raised, which is intended to make the bottom 50A of the molded composite container 70 recessed inside the container, thereby increasing the strength of the container bottom and counteracting the weight of the contents. Is. On the four outer walls 2c of the bottom die 2 parallel to the side walls 4a, laterally long protruding pieces 6 are formed along the outer walls 2c. These protruding pieces 6 are for fixing the bottom mold 2 to the other mold in an accurate positional relationship when the bottom mold 2 is combined with another mold described later.

The rotary shaft 11 is driven by the servo motor 114.
By rotating 2 while rotating 180 degrees intermittently, as shown in FIG. 7, the axis of each slide mechanism 118 is oriented vertically on the left and right sides of the rotary shaft 112, and the bottom die 2 of one slide mechanism 118 is The bottom die 2 of the other slide mechanism 118 is located above. Then, the bottom mold 2 positioned above becomes the outer container mounting position (d), and the bottom mold 2
The bottom portion 50 of the outer container 58 is inserted into the recess 4 of the outer container 58, and the outer container 58 is held by the bottom mold 2. Further, the outer mold 58 inserted at the upper position is attached to the bottom mold 2 located at the lower position.
The shoulder piece 58a is held downward, the axial center of the outer container 58 and the preform 34 are positioned coaxially, and the slide mechanism 118 allows the bottom mold 2 and the outer container 58 to be held.
Is moved down to the container forming position (e), and the outer container 58
The preform 34 is inserted inside the.

Between the two vertical plates 110 on the base 104,
A pair of split molds 20 are provided on the bottom mold 2 at the container molding position (e) so that they can be combined and released. Each split mold 20 is disposed on the side of the preform 34 at the container molding position (e), and is attached to the moving plate 132 supported by the vertical plate 110 via the guide rod 130 so as to be horizontally movable. There is. The moving plates 132 are moved in a direction in which they are separated from each other and approach each other via a toggle mechanism 136 by driving a servo motor 134 disposed outside the vertical plate 110, and the moving plates 132 are moved in a direction in which they approach each other. Thus, the pair of split molds 20 are united with the bottom mold 2 which is at the container molding position (e).

Here, the split mold 20 will be described. The pair of split molds 20 mold a part of the body portion 52, the shoulder portion 54, and the mouth portion 56 of the composite container. Since the pair of split molds 20 are bilaterally symmetrical, one of them will be described. FIG. 10 (A)
Shows a plan view of the split mold, (B) shows the front view, and (C) shows the bottom view. The mold surface 20A of the split mold 20 has a recess 21 corresponding to the shape of the composite container 70 and a recess 28 into which the bottom mold 2 is fitted.
Etc. are formed. The recess 21 includes two wall surfaces 22 that form two adjacent outer surfaces of the body portion 52 of the composite container 70 and are orthogonal to each other, and a wall surface 2 that forms the outer surface of the shoulder portion 54.
It is composed of four. The recess 26 formed on the lower surface of the split mold 20 is a portion where the collar 62 of the mouth portion 56 is arranged when the preform of the composite container 70 is mounted on the mold. Recess 2
Reference numeral 8 is a space into which the bottom mold 2 is fitted when it is combined with the bottom mold 2. When united with the bottom die 2, the protruding piece 6 of the bottom die 2 is fitted into the groove 28a formed in the wall surface of the recess 28.

Next, a case where the composite container 70 is manufactured by the composite container manufacturing apparatus 102 will be described. As shown in FIG. 6, first, the supporting means 105 is horizontally moved to the position (a) by the moving mechanism 106, and the preform 34 is vertically mounted on the supporting means 105 with the mouth portion 56 facing downward.
When the preform 34 is mounted vertically, the supporting means 105 is horizontally moved to the position (b), and the heater 140 is rotated while the preform 34 is rotated at the position (b).
(See FIG. 4), it is heated to about 90 ° C. Then, after heating, the supporting means 105 is horizontally moved to the position (C) shown in FIGS. 6 and 7.

Above the position (c), the turning member 116 is simply rotated by 180 degrees by the servo motor 114, and the bottom mold 2 stopped at the upper position, that is, the outer container mounting position. The bottom of the outer container 58 is mounted and held in the recess 4 of the bottom mold 2 stopped in (d). At this time, through the opening 2a of the bottom mold 2 and thus the passage 2
Air is sucked through b, and as a result, the portions of the attached outer container 58 near the bottom of the body piece 58 are respectively adsorbed to the openings 4b of the side walls of the recess 4, and in FIG. A vacuum hose provided between 112 and the bottom mold 2 and a cooling water hose for circulating cooling water inside the bottom mold 2 are shown. Then, the turning member 116 is rotated by 180 degrees by the servo motor 114, the bottom mold 2 having the outer container 58 mounted thereon is positioned below, and thus the outer container 58 is stopped at the position (C). 34
The shoulder piece 58a is in a state in which the shoulder piece 58a is directed downwardly and coaxially.

Then, the slide mechanism 118 is operated to lower the bottom mold 2 to the container molding position (e), whereby the preform 34 is inserted into the outer container 58. Next, the pair of split dies 20 move in a direction of approaching each other via the toggle mechanism 136 by driving the servo motor 134, and the bottom dies 2 are housed in the recesses 28 to be united with the bottom dies 2. When the bottom mold 2 is combined with the bottom mold 2,
The four protruding pieces 6 are fitted into the grooves 28a of the split mold 20, respectively, so that the positional relationship between the split mold 20 and the bottom mold 2 is accurately determined, and the bottom mold 2 becomes a pair of split molds 20. Fixed against.

When the molds are united, the stretching rod 144 (see FIG. 5) is passed through the mouth portion 56 of the preform 34 so that the supporting means 1 is supported.
15 is inserted into the inside of the preform 34, and the preform 34 is stretched in its longitudinal direction by the stretch rod 144, and at the same time, air is pressurized and injected into the preform 34 from the mouth 56 through the supporting means 115. Blow molding is performed in which the preform 34 expands in the mold, that is, in the outer container 58. As a result, the inner container 60 is molded and completed, and the composite container 70 in which the outer surface of the inner container 60 is in close contact with the inner surface of the outer container 58 is obtained. Further, at this time, the adhesive applied to the inner surface of the outer container 58 is heated and melted by the high-temperature inner container 60 to develop adhesiveness, so that the inner surface of the outer container 58 and the outer surface of the inner container are bonded to each other. Glued by the agent. After that, the mold is released and the supporting means 1
05 is horizontally moved to the position (a) by the moving mechanism 106, the composite container 70 is taken out, and the next preform 34 is vertically mounted on the supporting means 105 with the mouth portion 56 facing downward.

On the other hand, while the stretch blow molding is being performed at the container molding position (e), the outer container 58 is mounted and held on the bottom mold 2 stopped at the outer container mounting position (d). To be done. As shown in FIGS. 4 and 11, this mounting is performed by lowering the pair of gripping tools 146 that grips the upper portion of the body portion piece 58d of the outer container 58 toward the bottom mold 2 to form the body portion piece 58d. The bottom part and the bottom piece 58b are mounted in the bottom mold 2 so as to be inserted into the recess 4. And
The pair of gripping tools 146 are separated from each other by the vacuum acting on the opening 2a and are attracted to the bottom mold 2, and are retracted from the bottom mold 2.

According to the method and apparatus for manufacturing the composite container of this embodiment, the two bottom molds 2 are simply swung in the vertical plane above the preform 34, and the bottom mold 2 is stopped to hold the outer container 70. Stretch blow molding was performed on the side of the bottom mold 2, while the outer container 58 was attached to the bottom mold 2 stopped upward during the stretch blow molding. Therefore, when a large number of composite containers 70 are manufactured, it is not necessary to specially secure the time for mounting the outer container 58 on the bottom mold 2, and thus the cycle loss is eliminated and the composite containers 70 are manufactured efficiently. It becomes possible.

Further, the outer container 58 is held in advance on the bottom mold 2, the molds are combined in this state, and then the stretching process and the blowing process are performed to mold the inner container 60 to obtain the composite container 70. I chose Therefore, the manufacturing method and apparatus according to the embodiment do not require a special part or apparatus for inserting the outer container 58 into the mold. Moreover, since the outer container 58 is directly mounted in the mold, the outer container 58 can be accurately arranged, which is effective in improving the manufacturing yield.

Further, in the manufacturing method and apparatus according to the embodiment, since the outer container 58 is also inserted into the mold and the inner container 60 is blow-molded, at the same time when the inner container 60 is molded, a composite with the outer container 58 is also formed. Done. Therefore, the number of steps is smaller than the method of mounting the outer container 58 by some method after molding the inner container 60 with a mold, and the degree of adhesion between the inner container 60 and the outer container 58 is very high. Therefore, the high-strength composite container 70 is obtained.

[0028]

As described above, in the method for manufacturing a composite container according to the present invention, the heated elongated preform to be the inner container is positioned and held, and the length of the preform passes substantially through the center of the cross section of the preform. On a virtual circumference in a plane including a virtual line extending in the direction, at least two or more bottom molds that hold the bottom of the outer container with the mouth side of the outer container facing radially outward of the virtual circumference. Rotate the bottom mold holding the outer container at a position where the mouth side of the outer container faces the preform, and move at least one of the bottom mold and the preform in the direction of approaching each other to move the inner mold to the inside of the outer container. Insert the preform, combine the split mold that molds the part other than the bottom of the composite container with the bottom mold, insert the drawing rod into the preform, inject the fluid under pressure, and perform the stretch blow molding. The resulting composite container performed, whereas, while molding the thus combined vessel so as to hold the bottom of the outer container bottom mold to stop the turning position away from the preform. Further, the manufacturing apparatus of the composite container according to the present invention, the heated elongated preform is vertical, preform support means for supporting the mouth of the preform facing downward, and above the preform support means. ,
A swivel member supported so as to swivel in a vertical plane, a plurality of slide mechanisms attached to the swivel member at intervals in the circumferential direction of the swivel member, and sliding a bottom die on the swivel member; The bottom die is supported by the slide mechanism so as to hold the bottom portion of the outer container so that the mouth side of the outer container is directed to the outer side in the radial direction of the revolving locus, and Each slide mechanism is a container molding position where the preform is inserted inside the outer container by sliding the bottom mold downward at the stop position of the turning member in which the mouth side of the outer container held by the bottom mold faces downward. Is attached to the swiveling member so that the split mold for molding a portion other than the bottom of the composite container at the container molding position, and a split mold drive for combining and separating the split mold with the bottom mold. hand Bets are a configuration that is provided. Therefore, it goes without saying that the composite container can be manufactured at low cost, and even when a large number of composite containers are manufactured, cycle loss can be eliminated and the manufacturing efficiency of the composite container can be improved.

[Brief description of drawings]

1A is a plan view of a composite container, FIG. 1B is a side view thereof, and FIG. 1C is a bottom view.

FIG. 2A is a perspective view of an outer container, and FIG. 2B is a front view of the same.

FIG. 3 is an explanatory view of a process for manufacturing a composite container based on the method for manufacturing a composite container according to the present invention.

FIG. 4 is a front view of the composite container manufacturing apparatus.

FIG. 5 is a side view of the composite container manufacturing apparatus.

FIG. 6 is a plan view of an apparatus for manufacturing a composite container.

FIG. 7 is an enlarged view of a slide mechanism portion.

FIG. 8 is an enlarged view of an arm and a bottom mold portion.

9A is a plan view of the bottom mold, FIG. 9B is a front view of the bottom mold, FIG.
(C) is a bottom view of the same.

FIG. 10 is a plan view of a pair of split molds, (B) is a front view,
(C) is a bottom view.

FIG. 11 is a plan view of a pair of grippers.

[Explanation of symbols]

2 bottom type 20 split type 34 preform 36 composite container 58 outer container 60 Inner container 102 Composite container manufacturing equipment 105 support means 108 Turning mechanism 112 rotation axis 116 Swivel member 118 slide mechanism

Front page continuation (72) Inventor Hiroto Kashima 1-5-1 Taito, Taito-ku, Tokyo Toppan Printing Co., Ltd. (56) Reference JP-A-8-276958 (JP, A) JP-A-47-6034 (JP, A) Actual development Sho 58-151570 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B29C 49/00-49/80

Claims (7)

(57) [Claims] 1. A method for producing a composite container comprising an inner container made of plastic and an outer container made of paper, which comprises positioning and holding a heated elongated preform to be the inner container, On a virtual circumference in a plane including an imaginary line extending in the longitudinal direction of the preform that passes substantially through the center of the cross section, the mouth side of the outer container is directed radially outward of the imaginary circumference, and the bottom of the outer container is A direction in which at least one of the bottom mold and the preform approaches each other by rotating at least two bottom molds to hold, and stopping the bottom mold holding the outer container at a position where the mouth side of the outer container faces the preform. And insert the preform inside the outer container, combine a split mold for molding a portion other than the bottom of the composite container with the bottom mold, and insert a stretch rod into the preform. A fluid is pressure-injected, and stretch blow molding is performed to obtain a composite container. On the other hand, while molding the composite container in this way, the outer container is placed in a bottom mold that stops at a swivel position away from the preform. A method for producing a composite container, characterized in that the bottom part is held. 2. The positioning and holding of the heated elongated preform is such that the mouth of the preform is directed downward,
The method for manufacturing a composite container according to claim 1, wherein the imaginary line is oriented vertically. 3. The method for manufacturing a composite container according to claim 1, wherein the bottom mold is swung in a vertical plane. 4. The method for producing a composite container according to claim 1, wherein the preform is inserted into the outer container by moving the bottom mold toward the preform. 5. An apparatus for producing a composite container comprising a plastic inner container and a paper outer container, wherein a heated elongated preform is made to be vertical, and a downward facing preform mouth portion is provided. A preform supporting means for supporting a swivel member, a swivel member supported swivel in a vertical plane above the preform supporting means, and a plurality of swivel members are attached to the swivel member at intervals in the circumferential direction of the swivel member. A slide mechanism that slides the bottom die on the swivel member, and swivel drive means that intermittently swivels the swivel member, wherein the bottom die directs the mouth side of the outer container toward the radially outer side of the swirl trajectory. Is supported by the slide mechanism so as to hold the bottom portion of the outer container, and each of the slide mechanisms is at a stop position of the swivel member in which the mouth side of the outer container held by the bottom die faces downward, It is attached to the swivel member so that the preform is inserted into the outer container by sliding the bottom mold downward, and further, at the container molding position, a portion other than the bottom of the composite container is attached. And a split mold driving means for joining the split mold to a bottom mold and releasing the split mold from each other. 6. A stretch rod inserted into the inside of the preform through the preform support means and a pressurized fluid supply means for supplying a pressurized fluid into the preform through the preform support means. The composite container manufacturing apparatus according to claim 5. 7. The composite container manufacturing apparatus according to claim 5, wherein the two slide mechanisms are provided with two phases shifted by 180 degrees.