JPH08323845A - Stretch blow molded container fitted with grasping part and method and apparatus for producing the same - Google Patents

Abstract

PURPOSE: To prevent the flying-out of content from the mouth part of a container and the leakage of the content from grasaping recessed parts at a time of the grasping of the container by providing the grasping recessed parts having a pair of recessed surface parts of which the opposed surfaces are mutually welded and fixed to both side parts surrounded by a grasping part and the side wall of a container main body so as to continue to them. CONSTITUTION: A grasping part 26 and grasping recessed parts 28, 28 are integrally molded on the side part of a container main body 24. The grasping part 26 is formed so as to continue to the side wall 22 of a container main body 24 and has the hollow part 30 communicating with the container main body 24. The grasping recessed parts 28, 28 are formed to both side parts surrounded by the grasping part 26 and the side wall 22 of the container main body 24 and have a pair of the opposed recessed surface parts 32, 32 formed so as to continue to the grasping part 26 and the side wall 22 of the container main body 24. By mutually welding and fixing the opposed surfaces 36, 36 of a pair of the recessed surface parts 32, 32, the generation of the gap 34 between the recessed surface parts 32,32 is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stretch blow-molded container with a grip, a method of manufacturing the same, and a manufacturing apparatus therefor
In particular, the present invention relates to a stretch blow molding container with a grip portion, which is formed by stretch blow molding a preform made of polyethylene terephthalate, a manufacturing method thereof, and a manufacturing apparatus.

[0002]

2. Description of the Related Art Conventionally, a stretch blow molding container obtained by stretch blow molding a preform made of polyethylene terephthalate (PET, also referred to below) has been known. At present, this stretch blow molding made of PET is known. Molded containers are becoming mainstream in the market. This is due to many reasons such as low burning calories of PET resin, no emission of harmful substances, high transparency in biaxial stretch molding, and high gas barrier property.

When such a PET stretch-blow molded container becomes large (for example, 1.5 l or more), a handle is provided in consideration of the convenience of the consumer. The handle used in such a stretch blow-molded container is separately molded from a resin such as polyethylene or polypropylene, and is formed integrally with the stretch blow-molded container when the stretch-blow molded container is molded.

By the way, in recent years, PET as described above is used.
Attention has been paid to the recycling of stretch-blow molded containers made of steel. When such recycling is performed, if foreign matter is mixed, it will hinder the recycling. For example, in a stretch-blow molded container made of PET, the aluminum cap, the base cup, etc. are made of a material other than PET resin, and these become foreign substances that hinder recycling,
The above-mentioned handle is also made of a material different from PET resin, and this handle also corresponds to a foreign substance.

Therefore, in order to facilitate recycling by making the handle from PET, there has been considered a method of integrally forming the grip portion on the side portion of the container by forming a hole in the side wall portion of the container.

The method of integrally molding such a grip portion into a container is often used for a container molded by direct blow molding using a resin such as vinyl chloride.

However, the method of forming a container by performing direct blow molding using a PET resin is not widely used because of the problem of strength of the container.

Therefore, as a method for forming a stretch blow-molded container with a grip by biaxial stretch blow-molding a preform injection-molded using PET resin, Japanese Examined Patent Publication No. Sho 62-62.
The ones disclosed in Japanese Patent Laid-Open No. 10818 and Japanese Patent Publication No. 64-9225 are proposed.

In Japanese Patent Publication No. 62-10818, when performing blow molding in a blow molding die, a pressing member provided in the blow molding die is used to form a concave portion (panel portion) for gripping. ing. In this case, the pressing member forming the concave portion (panel portion) is heated to the glass transition point or higher and the recrystallization start temperature or lower.

In Japanese Patent Publication No. 9225/1989, after forming a concave portion (close contact portion) for holding by a pressing member in a blow molding die, the container is taken out from the blow molding die and the concave portion (close contact portion) is taken out. Part) is punched and cut by a cutter heated to a temperature equal to or higher than the melting point while leaving the end part, and the end part is heat-sealed.

[0011]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the method disclosed in Japanese Patent No. 0818, a pressing member heated to a temperature not lower than the glass transition point and not higher than the recrystallization start temperature is used to form the holding concave portion (panel portion). Even if the recess is brought into close contact with the pressing member in the mold, it is difficult to maintain the close contact state of the recess even when the container is taken out of the blow mold after molding. This is because the recesses of the container taken out from the blow molding die are deformed in the respective separating directions. Therefore, as described in the above publication, a gap is created between the recesses.

In this way, if there is a gap between the recesses,
When the contents are stored in the container, the contents enter the gap between the recesses, and when the consumer grips the gripping part, the gap between the recesses is crushed and the contents have entered the gap. The problem is that it is difficult to commercialize a container with a gripper when there is a gap between the recesses because the contents may be pushed out from the container mouth due to the change in the line of sight when the container is pushed out. was there.

In the method disclosed in Japanese Examined Patent Publication No. 9225/1989, after the container is taken out from the blow molding die, the concave portion is punched and cut by a cutter heated to a temperature higher than the melting point to remove the edge portion. Although it is designed to be heat-sealed, since it is heat-sealing only by the cutter on the edge portion, it is difficult to completely perform heat-sealing, and the contents may leak from the edge portion. In such a state, there is a problem that it is difficult to commercialize the container with the grip portion.

Therefore, the container with the gripping portion by any of the above methods is not commercialized at this stage.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is a stretch blow-molded container made of PET with a gripping portion, which promotes recycling and is a container when gripping the gripping portion. It is to prevent the contents from jumping out from the mouth and to surely prevent the contents from leaking from the holding recess.

Another object is to improve the gripping property of the gripping portion.

[0017]

In order to achieve the above object, a stretch blow molded container with a grip portion according to the first invention is a stretch blow molded container obtained by stretch blow molding a preform made of polyethylene terephthalate. A gripping part formed on a side part of the container body continuously with the side wall of the container body and having a hollow part communicating with the inside of the container body, and on both side parts surrounded by the gripping part and the side wall of the container body. A gripping concave portion having a pair of concave surface portions facing each other and formed continuously with the grip portion and the side wall of the container body, and the facing surfaces of the pair of concave surface portions are fixed by welding. It has a feature.

In the stretch blow molding container with a grip portion according to a second aspect of the present invention, in addition to the state of the first aspect, the pair of concave surface portions have a through hole that is cut off leaving the welded peripheral edge portion. Is characterized by.

In the stretch blow-molded container with the grip portion according to the third invention, in addition to the state of the first or second invention, the grip portion has a recess at the upper side surface position where the thumb comes into contact when gripped by the hand. It is characterized by being formed.

In the stretch blow-molded container with the grip portion according to the fourth aspect of the present invention, in addition to the state of the first or second aspect of the invention, the grip concave portion is an upper portion into which a thumb is inserted when the grip portion is gripped by hand. It is characterized in that it has a thumb insertion portion whose portion is formed larger than the other lower portions.

In the stretch blow-molded container with the grip portion according to the fifth aspect of the present invention, in addition to the state of the first aspect of the invention, the holding recess on one side is inserted by the thumb when the grip portion is gripped by hand. A concave surface portion of a portion corresponding to the thumb insertion portion, which has a thumb insertion concave portion formed by denting to the other side from the widthwise center position of the grip portion, and the grip concave portion on the other side, A finger insertion recess formed by recessing a concave surface portion of a portion corresponding to the other finger insertion portion into which the other finger except the thumb is inserted to the one side from the center position in the width direction of the grip portion. Is characterized by.

According to a sixth aspect of the present invention, there is provided a method for producing a stretch blow-molded container with a grip portion, in which a polyethylene terephthalate preform is stretch blow-molded in a blow cavity mold to form a stretch blow-molded container. In the method for producing a stretch blow-molded container with a part, during the stretch blow molding, in the blow cavity mold, a gripping part forming part is left, and a part to be a gripping concave part is pressed from both sides, and a pair of concave surface parts facing each other. Forming a gripping concave portion having, and forming a gripping portion having a hollow portion that is continuous with the side wall and the concave surface portion of the container body on the side portion of the container body and that communicates with the inside of the container body, A step of taking out the stretch blow-molded container having the grip portion formed therein, and a step of taking out the same from the blow-cavity mold. The Shin blow molded container, was carried into the welding apparatus is characterized by including a step of welding fixing the pair of concave portions for the opposing.

A method for manufacturing a stretch blow molded container with a grip portion according to a seventh aspect of the present invention is a grip for molding a stretch blow molded container by stretch blow molding a polyethylene terephthalate preform in a blow cavity mold. In the method for producing a stretch blow-molded container with a part, during the stretch blow molding, in the blow cavity mold, a gripping part forming part is left, and a part to be a gripping concave part is pressed from both sides, and a pair of concave surface parts facing each other. Forming a gripping concave portion having, and forming a gripping portion having a hollow portion that is continuous with the side wall and the concave surface portion of the container body on the side portion of the container body and that communicates with the inside of the container body, A step of taking out the stretch blow-molded container having the grip portion formed therein, and a step of taking out the same from the blow-cavity mold. The Shin blow molded containers, are aligned by the alignment device, the steps of loading the welding apparatus, by the welding apparatus is characterized in that it comprises a step of welding fixing the pair of concave portions for the opposing.

The method for manufacturing a stretch-blow molded container with a grip portion according to the eighth invention is characterized in that an ultrasonic welding device is used as the welding device in addition to the state of the sixth or seventh invention.

According to a ninth aspect of the present invention, in addition to the state of the sixth or seventh aspect of the present invention, in the method for producing a stretch blow-molded container with a grip portion, at least when the pair of concave surface portions are welded and fixed by the welding device, at least the concave portion is It is characterized in that the peripheral edge portion is welded and the concave surface portion is cut off leaving the welded peripheral edge portion to form a through hole.

A tenth aspect of the present invention is directed to a method for producing a stretch blow-molded container with a grip portion, in which a polyethylene terephthalate preform is stretch blow molded in a blow cavity mold to form a stretch blow molded container. In the method for producing a stretch blow molded container with a part, during the stretch blow molding, in the blow cavity mold,
While leaving the gripping portion forming portion, the gripping concave portion is pressed from both sides to form a gripping concave portion having a pair of opposed concave surface portions, and the side wall of the container main body and the concave surface are formed on the side portion of the container main body. Forming a grasping portion having a hollow portion continuous with the container body and communicating with the inside of the container body, and removing the stretch blow-molded container in which the grasping portion is formed from the blow cavity mold, Including a step of cutting off the pair of opposed concave surface portions of the molding container leaving a peripheral edge portion to form a through hole, and a step of adhesively fixing the peripheral edge portions of the remaining concave surface portion with an adhesive. Is characterized by.

In the method for producing a stretch blow-molded container with a grip portion according to the eleventh invention, a stretch blow-molded container is molded by stretch-blow molding a polyethylene terephthalate preform in a blow cavity mold. In the method of manufacturing a blow-molded container, during the stretch blow molding, a holding portion forming portion is left in the blow cavity mold, and a portion to be a holding concave portion is pressed from both sides to hold a pair of facing concave portions. Forming a concave portion for use, and forming a holding portion on a side portion of the container body, the holding portion having a hollow portion that is continuous with the side wall of the container body and the concave surface portion and communicates with the inside of the container body; The formed stretch blow-molded container is taken out of the blow cavity mold, and the pair of recesses facing each other of the taken stretch blow-molded container are taken out. Part excised leaving the peripheral portion and forming a through-hole, the peripheral portion of the remaining concave portion,
The step of applying a separately molded ring member made of synthetic resin and welding and fixing the peripheral portions to each other by the ring member is performed.

The apparatus for producing a stretch blow-molded container with a grip portion according to the twelfth aspect of the invention is such that when a polyethylene terephthalate preform is stretch blow-molded in a blow cavity mold to form a stretch blow-molded container, The side of the container body has a hollow portion communicating with the inside of the container body,
And, a pair of concave surface portions which are formed continuously with the grip portion and the side wall of the container body, and on both side portions surrounded by the grip portion and the side wall of the container body. A stretch blow molding device that forms a holding recess having a grip, a welding device that welds and fixes the pair of concave surface portions of the stretch blow molding container taken out from the stretch blow molding device, and the welding from the stretch blow molding device. Transporting means for transporting the stretch blow molded container to the apparatus.

In addition to the state of the eleventh aspect of the present invention, in the stretch blow molding container manufacturing apparatus with a grip portion according to the thirteenth invention, the stretch blow molding containers taken out from the stretch blow molding apparatus are aligned in the middle of the conveying means. The feature is that an aligning machine is provided.

In addition to the state of the eleventh aspect, the apparatus for producing a stretch blow-molded container with a grip portion according to the fourteenth aspect is characterized in that the welding device is an ultrasonic welding device.

In addition to the state of the eleventh aspect of the invention, the stretch blow molding container manufacturing apparatus with a gripping part according to the fifteenth aspect of the present invention includes an injection molding station for injection molding a preform and the injection molding station. A temperature control station for adjusting the temperature of the molded preform, a stretch blow molding station for performing stretch blow molding on the temperature adjusted preform, and an ejection station for taking out the stretch blow molded container molded at the stretch blow molding station. And a transport means for transporting the preform or stretch blow molded container to each of the stations.

[0032]

In the first aspect of the present invention having the above structure, the facing surfaces of the pair of concave surface portions of the holding concave portion are welded and fixed to each other, whereby the facing surfaces of the concave portion are welded and fixed without using different materials. It is possible to contribute to the promotion of recycling, moreover, by eliminating the gap between the pair of concave surface portions,
When gripping the grip part, it is possible to reliably prevent the content from being pushed out and jumping out from the container mouth part,
Further, it is possible to reliably prevent the leakage of the contents from the welded and fixed portion.

According to the second aspect of the present invention, by forming a through hole that is cut off leaving the peripheral edge portion welded to the concave surface portion, a finger can be inserted into the through hole to be grasped, and the gripping property is improved. Can be improved.

According to the third aspect of the present invention, a recess is formed in the upper side surface position of the gripping portion where the thumb abuts when gripped by the hand, so that the thumb can be sufficiently brought into close contact with the gripping portion to ensure gripping. Therefore, the gripping property can be improved.

According to the fourth aspect of the invention, the thumb inserting portion is formed in the holding concave portion such that the upper portion into which the thumb is inserted when the holding portion is held by hand is made larger than the other lower portions. The thumb can be sufficiently inserted into the thumb insertion portion to be surely gripped, and the gripping property can be improved.

According to the fifth aspect of the invention, the thumb insertion recess and the other finger insertion recess formed in each of the gripping recesses are formed deeper than the widthwise center position of the gripping portion.
The thumb and other fingers can be inserted deeper to grip the grip portion reliably, and the grip performance can be improved.

According to the sixth aspect of the invention, the stretch blow molded container having the gripping portion is taken out from the blow cavity mold, and then a pair of concave surface portions facing each other are welded and fixed by a welding device. In addition, it is possible to form the stretch blow molding container with the grip portion, in which the concave portions are fixed by welding.

In the seventh aspect of the invention, the stretch blow-molded container having the grip portion is taken out from the blow cavity mold, aligned by the aligning machine, and carried into the welding device.
By welding and fixing a pair of facing concave portions,
A stretch-blow molding container with a gripping part, in which concave portions are welded to each other, can be manufactured by automatic line production.

In the eighth aspect of the invention, the concave surface portions of the holding concave portion are welded together by using an ultrasonic welding device,
The facing surfaces of the pair of concave surface portions can be easily and reliably welded from the outside.

According to the ninth aspect of the invention, the pair of concave surface portions are welded at least at the peripheral edge portions, and the concave surface portions are cut off leaving the welded peripheral edge portions to form the through holes, thereby reliably gripping. It is possible to easily manufacture a stretch blow-molded container with a gripping part capable of gripping a part.

According to the tenth aspect of the invention, the stretch blow molded container having the gripping portion is taken out from the blow cavity mold, and a pair of opposed concave portions are cut off leaving a peripheral portion to form a through hole. By bonding and fixing the peripheral portions of the remaining concave surface portions with an adhesive, it is possible to easily form a through hole having a peripheral portion securely bonded with the adhesive, and moreover, leakage of contents. Can also be easily prevented.

In the eleventh invention, the concave surface portion is
It is stretched and oriented as a part of the side wall of the container, and the peripheral portion around the through hole left in this concave portion is also stretched and oriented, and the wall thickness is thin and non-uniform. It is difficult to do this, but by applying a separately molded ring member made of synthetic resin with uniform thickness and not oriented to this peripheral part, and fixing the peripheral parts by welding with this ring member, the meat of the welded part The thickness can be increased to obtain a uniform welded state.

In the twelfth aspect of the present invention, the stretch blow molding apparatus, the welding apparatus, and the conveying means constitute a manufacturing apparatus, so that the opposing surfaces of the pair of concave surface portions of the holding concave portion are welded to each other. A stretch blow molded container with parts can be manufactured.

According to the thirteenth aspect of the invention, by disposing a stretch blow molding container aligning machine in the middle of the conveying means,
Enables automatic line production.

According to the fourteenth invention, by using the ultrasonic welding device, the concave surface portions of the holding concave portion can be welded after the stretch blow molding.

According to the fifteenth aspect of the present invention, the stretch blow molding apparatus is composed of an injection molding station, a temperature control station, a stretch blow molding station, a take-out station and a conveying means. Since a series of steps from injection molding to taking out the stretch blow molding container can be performed, molding efficiency can be improved.

[0047]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the drawings.

FIGS. 1 and 2 show a stretch blow-molded container with a grip portion according to an embodiment of the present invention, and FIGS.
Shows a stretch blow-molded container with a gripper in a state before reaching the state of FIGS. 1 and 2.

The stretch blow-molded container 10 with a gripping portion shown in this embodiment uses a PET preform and is biaxially stretch-blow-molded to form a neck portion 12 including an opening on the upper end side. A bottom portion 14 on the lower end side, a shoulder portion 16 extending downward from the neck portion 12, a side wall 22 including a body portion 18 extending downward from the shoulder portion 16 and a heel portion 20 extending from the body portion 18 to the bottom portion 14. The container body 24 is formed integrally, and the holding portion 26 and the holding recesses 28, 28 are integrally formed on the side portion of the container body 24.

The grip portion 26 is formed on the side of the container body 24 from the shoulder portion 16 to the vicinity of the center of the body portion 18 in the height direction, and is formed continuously with the side wall 22 of the container body 24. Further, it has a hollow portion 30 communicating with the inside of the container body 24.

The holding recesses 28, 28 are formed on both sides surrounded by the holding portion 26 and the side wall 22 of the container body 24, and are formed continuously with the holding portion 26 and the side wall 22 of the container body 24. It also has a pair of opposed concave portions 32, 32.

The pair of concave surface portions 32, 32 are formed in close contact with each other at the center position X in the width direction of the grip portion 26 during stretch blow molding, but in the state of being taken out from the blow molding die after molding, As shown in FIG. 3 and FIG. 4, the concave surface portions 32, 32 are deformed in the respective separating directions, and a gap 34 is formed between the concave surface portions 32, 32.

When the contents are accommodated in the stretch blow-molded container 10 with the gripping portion in the state shown in FIGS. 3 and 4, the contents also enter the gap 34 between the concave surface portions 32, 32. When the grip portion 26 is gripped by hand in the state,
The gap 34 between the concave portions 32 is crushed, and the gap 34
The contents that have entered the space are pushed out to cause a change in the line of sight, and this change may cause the contents to jump out from the mouth of the container.

Therefore, in this embodiment, the facing surfaces 36, 36 of the pair of concave surface portions 32, 32 are welded and fixed to each other to prevent the formation of the gap 34 between the concave surface portions 32, 32. .

Specifically, as shown in FIG. 5, a pair of horns 40, 40 of the ultrasonic welding device 38 sandwiches the pair of concave surface portions 32, 32 from both sides to bring them into close contact with each other. The ultrasonic wave is transmitted to the inside 32 of the facing surface 3
6 and 36 are welded at their contact surfaces. In this embodiment, as shown in FIG.
Concave portions 32, 3 are provided at three locations above and below and almost in the center of
A welding portion 42 for welding and fixing the two facing surfaces 36, 36 to each other is formed.

In this way, the ultrasonic welding device 38
By welding at the contact surfaces of the facing surfaces 36, 36 of the concave portions 32, 32, reliable welding can be performed, and further, leakage of the contents from the welding portion 42 can be surely prevented.

FIGS. 6 and 7 are views showing a stretch-blow molding container with a grip portion according to another embodiment of the present invention.

In this embodiment, the ultrasonic welding device 38 welds and fixes the peripheral edge portions of the concave surface portions 32, 32 of the holding recesses 28, 28 to form a continuous welded portion 44 in an annular shape. By cutting off the pair of concave surface portions 32, 32 inside the peripheral edge portion, leaving the peripheral edge portion formed with, the through hole 46 is formed in the holding concave portions 28, 28.

By forming the through hole 46 in the holding recesses 28, 28 in this manner, when the holding portion 26 is held, a finger can be inserted into the through hole 46 to hold the holding portion 26. It will be improved.

Further, in the case of forming such a through hole 46, it is not limited to the case where the concave portions 32, 32 are cut off after the welding portion 44 is formed by the ultrasonic welding device 38 as described above. , The peripheral edge portions of the concave surface portions 32, 32 are left, the inner peripheral edge portions of the concave surface portions 32, 32 are first cut to form the through holes 46, and then the peripheral edge portions of the concave surface portions 32, 32 are welded or bonded. It is also possible to bond and fix with an agent.

FIG. 8 is a view showing a stretch blow molding container with a grip portion according to still another embodiment of the present invention.

In this embodiment, when the grip portion 26 is gripped by the hand, the concave portion 50 is formed at the upper side surface position of the grip portion 26 which the thumb 48 contacts.

As described above, the grip portion 2 with which the thumb 48 abuts
By forming the recess 50 in the upper side surface position of the thumb 6,
8 can be sufficiently brought into close contact with the grip portion 26 to ensure gripping, thereby improving gripping performance.

FIG. 9 is a view showing a stretch blow molding container with a grip portion according to still another embodiment of the present invention.

In this embodiment, the thumb insertion portion 52 is provided in which the upper portion of the holding recess 28 into which the thumb 48 is inserted when the holding portion 26 is held by the hand is formed larger than the other lower portions.

As described above, the thumb 48 can be sufficiently inserted into the large-sized thumb insertion portion 52 and can be reliably gripped, which improves the gripping property.

FIG. 10 is a view showing a stretch blow molded container with a grip portion according to still another embodiment of the present invention.

In this embodiment, the thumb 4 is held in the holding recess 28 on one side (left side in the drawing) when the holding portion 26 is held by hand.
The thumb insertion recess 54 formed by recessing the concave portions 32, 32 of the upper portion corresponding to the thumb insertion portion of 8 into the other side (right side in the drawing) of the center position X in the width direction of the grip portion 26.
Is provided, and the concave surface portions 32, 32 of the lower portion corresponding to the other finger insertion portion into which the other four fingers 56 except the thumb 48 are inserted are grasped in the grasping concave portion 28 on the other side (the right side in the drawing). The other-finger insertion recess 58 formed by being recessed is provided on one side (left side in the drawing) of the width direction center position X of the portion 26.

As described above, each of the holding recesses 28,
Thumb insertion recess 54 and other finger insertion recess 5 formed in 28
By forming 8 deeper than the center position X in the width direction of the grip portion 26, the thumb 48 and the other four fingers 56 can be inserted deeper to securely grip the grip portion 26,
As a result, the gripping property is improved.

11 to 13 are views showing an apparatus for manufacturing a stretch blow molded container with a grip portion according to an embodiment of the present invention.

The manufacturing apparatus 60 according to this embodiment comprises a stretch blow molding apparatus 62, an ultrasonic welding apparatus 64, a conveying means 66, an aligning apparatus 68, and a product stocker 70.

In the stretch blow molding device 62, as shown in FIG. 11, the upper end of a tie rod 74 erected on the machine base 72 is connected and fixed by an upper base 76, and the lower surface of the upper base 76 is conveyed for molding. A rotating plate 78 as a means is provided so as to be intermittently rotatable at predetermined angles (90 degrees) by a rotation driving means (not shown).

On the lower surface of the rotary plate 78, a neck type support plate 8 composed of a split plate for supporting the neck types (see FIGS. 12 and 13) 80, 80 of split type so as to be openable and closable.
Four pieces 2 and 82 are arranged at a predetermined angle (90 degrees) from the center.
While being supported, the molded product is intermittently driven at a predetermined angle (90 degrees) as the rotary plate 78 rotates, and can be stopped at a predetermined position.

Also, the injection molding station 84, the temperature control station 86, the blow molding station 88, and the take-out station are respectively located at the stop positions along the rotary conveyance path by the rotary plate 78 of the molded product held by the neck molds 80, 80. A plurality of processing stations, such as 90, are provided so that stretch blow molded containers can be molded.

The injection molding station 84 is disposed at a position sandwiched between a pair of tie rods 74, and a hot runner (not shown), an injection cavity mold, and an injection unit which are connected to an injection device 92 at a position below the rotary plate 78. A lower mold clamping plate is provided, and an injection movable plate for raising and lowering an injection core mold (not shown) is provided above the upper base 76 so as to be movable up and down, and the injection cavity mold, the injection core mold, and the neck molds 80, 80 are clamped. Then, a PET preform is injection-molded.

In the temperature control station 86, the preform injection-molded in the injection-molding station 84 is the neck mold 8.
The rotary plate 78 is disposed at a position where it is rotated by 90 degrees and stopped while being held by 0 and 80, and the temperature of the preform molded in the injection molding station 84 is adjusted to an appropriate temperature for stretching. Machine stand 72 located below 78
Above is a temperature control pot (not shown) for adjusting the temperature.
Are arranged.

The blow molding station 88 includes the rotary plate 7
8 is rotated by 90 degrees, and the preform held by the neck molds 80, 80 is disposed at a position where the preform held by the neck molds 80, 80 is stopped from the temperature control station 86 and opposite to the injection molding station 84. As shown in FIG. 2 and FIG. 3, blow molding cavity molds 94, 94 made of split molds are arranged on the machine base 72 located below, and the upper base 76
A blow core unit (not shown) for moving the blow core mold 96 up and down is arranged above the. The bottom mold 9 is provided below the blow cavity molds 94, 94.
8 is arranged so as to be able to move up and down. Further, a pair of pressing members 100, 100 are arranged so as to be able to move back and forth at the forming position of the holding concave portion 28 of the stretch blow molding container 10 with a holding portion near the upper portions of the blow cavity molds 94, 94. .

Then, with the preform held in the neck molds 80, 80 inserted, the blow cavity mold 9
4, 94 and blow core mold 96 are clamped, the standard mold is raised, and blow air is introduced into the preform from the blow core mold 96 to perform stretch blow molding, and the preform is provided with a stretch blow molding container with a grip portion. It is formed in the shape of 10. In this case, while the preform is inflated to some extent by the introduction of blow air, the pressing members 100, 100 are advanced to form the holding concave portion 28, and then the holding portion 2 is introduced by the introduction of blow air.
6 is molded in a hollow state.

The take-out station 90 includes a neck mold 80,
Stretch blow molding container 10 with gripping part supported by 80
Is rotated and conveyed by 90 degrees by the rotation of the rotary plate 78 from the blow molding station 88, and is arranged at a position where it stops and at a position facing the temperature adjustment station 86.
Neck type support plates 82, 8 are placed on the upper base 76 at that position.
A mold opening mechanism (not shown) for opening 2 to open the neck molds 80, 80 is provided, and by this mold opening mechanism, the neck blow molds 80, 80 are stretched and blow-molded with a gripping container 10.
The neck portion 12 is open.

The ultrasonic welding device 64 is a stretch blow molding container 1 with a grip portion formed by the stretch blow molding device 62.
The facing surfaces 36, 36 of the concave surface portions 32, 32 of the holding recesses 28, 28 of 0 are welded together. Specifically,
As shown in FIG. 5, the pair of horns 40, 40 causes ultrasonic vibrations to be transmitted into the concave surface portions 32, 32 with the pair of concave surface portions 32, 32 sandwiched from both sides and in close contact with each other. The 36 contact surfaces are welded together.

The conveying means 66 is a stretch blow molding device 62.
The stretch blow-molded container 10 with a gripping part formed in step 1 is conveyed to the ultrasonic welding device 64, and the ultrasonic welding device 64
To convey the stretch blow-molded container 10 with the gripping section from the product stocker 70 to the product stocker 70. For example, a belt conveyer or a chain conveyer can be used. Further, by providing a delivery means for delivering the stretch-blow molding container 10 with the gripping portion from the delivery station 90 to the delivery means between the delivery station 90 of the stretch blow molding apparatus 62 and the delivery means 66, delivery is performed reliably. Will be seen.

The aligning device 68 is the stretch blow molding device 62.
From the ultrasonic welding device 64 to the ultrasonic welding device 64 and arranged in the middle of the path of the conveying means 66, and the stretch blow molding containers 10 with grips taken out from the stretch blow molding device 62 are aligned and supplied to the ultrasonic welding device 64. The ultrasonic welding device 64 ensures the welding. Also, this aligning device 6
By providing No. 8, the line from the stretch blow molding process to the ultrasonic welding process can be automated.

The product stocker 70 comprises the ultrasonic welding device 6
The stretch blow molding container 10 with the gripping portion in a state in which the concave surfaces 32, 32 of the gripping concave portions 28, 28 are welded to each other through 4 can be stocked.

Next, a method of manufacturing the stretch-blow molding container 10 with a gripping portion using such a manufacturing apparatus 60 will be described.

First, in the injection molding station 84, the injection core mold and the injection cavity mold are clamped to the neck molds 80, 80, and the molten PET resin is injected into the mold from the injection device 92 to make the PET mold. A bottomed tubular preform is molded.

Next, the injection core mold is retracted from the rotary plate 78, the injection cavity mold is opened, and the rotary plate 78 is rotationally driven while the neck parts 80 and 80 hold the neck portion 12 of the preform. , The preform is conveyed to the temperature control station 86.

In the temperature control station 86, the preform is inserted into the temperature control pot and the temperature of the preform is adjusted to an appropriate temperature for stretching.

Next, in the temperature control station 86, the preform whose temperature has been adjusted to a suitable stretching temperature is taken out from the temperature control pot, and the rotating plate 78 is rotationally driven by the neck molds 80 and 80 while holding the preform to blow the preform. It is conveyed to the molding station 88.

At the blow molding station 88, the blow core unit is lowered to set the blow core mold 96 to the neck mold 8.
With it inserted in the preform held at 0,80,
The blow cavity molds 94, 94 are clamped, the bottom mold 98 is raised, blow air is introduced into the preform from the blow core mold 96, and stretch blow molding is performed. To mold.

In this case, while the preform is inflated to some extent by the introduction of blow air, the pair of pressing members 10 are
0, 100 are advanced to leave a portion where the grip portion 26 of the preform is formed, and to press the portion that becomes the grip concave portion 28 and to have a pair of concave surface portions 32, 32 that face each other,
28, and a grip portion having a hollow portion 30 which is continuous with the side wall 22 and the concave surface portions 32, 32 of the container body 24 and which communicates with the inside of the container body 24 at the side portion of the container body 24 by the introduction of blow air. 26 is formed.

Then, the blow cavity molds 94, 94 and the blow core mold 96 are opened, and the stretch blow molding container 10 with a grip portion blow molded at the blow molding station 88 is held by the neck molds 80, 80 while the rotary plate is rotated. 7
Stretch blow molding container 10 with gripping part by rotating 8
It is conveyed to the take-out station 90.

In the take-out station 90, the neck mold support mechanism 82, 82 is opened by the mold opening mechanism to open the neck molds 80, 80. By opening 12 the stretch blow-molded container 10 with gripping part is taken out.

The stretch blow-molded container 10 with the gripping portion taken out at the take-out station 90 is conveyed by the conveying means 66, and the aligning device 68 brings the stretch blow-molded container with the gripping portion into a state suitable for the welding work in the ultrasonic welding device 64. The molding containers 10 are aligned, and the aligned stretch blow molding containers 10 with gripping portions are conveyed to the ultrasonic welding device 64.

Next, in the ultrasonic welding device 64, the concave surface portions 32, 32 of the holding concave portions 28, 28 are aligned with each other with respect to the stretch blow molding container 10 with the holding portion which is aligned and conveyed by the aligning device 68 as shown in FIG. A pair of horns 4 as shown in
The ultrasonic vibration is transmitted into the concave surface portions 32, 32 in a state of being brought into close contact with the concave surface portions 0, 40, and is welded at the contact surfaces of the opposing surfaces 36, 36. For example, as shown in FIG.
2 and 32 are concave and convex portions 32 at three positions, that is, at the upper and lower sides and substantially in the center.
Welding portion 42 for welding and fixing the facing surfaces 36, 36 of 32
To prevent a gap from being formed between the concave portions 32.

Then, the concave surface portion 3 of the holding concave portions 28, 28.
An ultrasonic welding device 64 for the stretch blow molding container 10 with a gripping part in which 2 and 32 are welded to each other by a conveying means 66.
From the product stocker 70 to the product stocker 7
A stretch blow molding container 10 with a predetermined amount of stock is stocked in 0.

14 and 15 are views showing a method for manufacturing a stretch blow-molded container according to another embodiment of the present invention.

In this embodiment, as shown in FIG. 14A, a through hole 46 is formed in the holding recess 28.

The through hole 46 is formed in the blow cavity mold at the time of stretch blow molding or after being taken out from the blow cavity mold, as shown in FIG.
It is formed by cutting off the peripheral edge of the second part.

Next, after forming the through holes 46, as shown in FIG.
(B) and (C) and a separately molded ring member 102 having a substantially U-shaped cross section are attached to the remaining peripheral edge portion, and the peripheral edge portion is sandwiched as shown in FIG.

Next, the horn 40 of the ultrasonic welding apparatus is brought into close contact with the outer surface side of the ring member 102, and the ring member 102 is attached.
The concave surface portion 32 and the concave surface portion 32 are welded to each other.

As a result, even if the concave surface portion 32 is stretched and oriented by stretch blow molding to have a thin wall thickness and a non-uniform state and is difficult to weld, the ring member 102 in the non-oriented state is formed. Makes the wall thicker,
The state of easy welding is obtained, a reliable welded and fixed state is obtained, and leakage of the contents can be surely prevented.

The material of the ring member 102 is preferably PET, which is the same as that of the container body 24, but polyethylene (P,
It is also possible to use E) or polypropylene (P, P).

16 and 17 show a method of manufacturing a stretch blow-molded container according to another embodiment, respectively.

In the embodiment shown in FIG. 16, the ring member 1 having a substantially U-shaped cross section in the embodiment shown in FIGS. 14 and 15.
Instead of 02, one sheet-shaped ring member 104,
The concave portion 32 is inserted between the remaining peripheral portions, and the concave portion 32 and the ring member 104 are brought into close contact with each other by the horn 40 so as to be fixed by welding.

In the embodiment shown in FIG. 17, two sheet-shaped ring members 104 shown in FIG. 16 are used, and the outer surface of the concave surface portion 32 forming the peripheral portion is sandwiched between them, and the horn 4 is used.
It is made to adhere | attach by 0 and to fix by welding.

16 and 17, the other structure and operation are similar to those of the embodiment of FIGS. 14 and 15, and the description thereof will be omitted.

The present invention is not limited to the above embodiments, but various modifications can be made within the scope of the present invention.

Although the ultrasonic welding device is used as the welding means in the above-mentioned embodiment, the present invention is not limited to this example, and for example, a welding device for welding using high energy such as high frequency or magnetism may be used. It is possible.

Further, in the manufacturing apparatus and the manufacturing method in the above-mentioned embodiment, the state in which the stretch blow molding containers are aligned and conveyed to the ultrasonic welding apparatus is shown, but the alignment apparatus is not always used. It is not necessary and can be omitted in some cases.

Further, in the manufacturing apparatus and the manufacturing method in the above-mentioned embodiment, the concave surface portions of the holding concave portion are welded to each other by the ultrasonic welding device, but the present invention is not limited to this example, and the peripheral portion is formed in the concave surface portion. It is also possible to form the through holes while leaving the above, and then to bond and fix the peripheral portions thereof with an adhesive.

[0111]

As described above, according to the first aspect of the invention, the facing surfaces of the pair of concave surface portions of the holding concave portion are welded and fixed to each other, so that the facing surfaces of the concave surface portions do not need to use different materials. Can be welded and fixed, which can contribute to promotion of recycling, and when the gap between the pair of concave surface portions is eliminated and the grip portion is gripped, the content is pushed out and the content is discharged from the container mouth portion. There is an effect that it is possible to reliably prevent the material from jumping out, and it is possible to reliably prevent the content from leaking from the welded and fixed portion.

According to the second aspect of the present invention, by forming the through hole that is cut off leaving the peripheral edge portion welded to the concave surface portion,
There is an effect that a finger can be inserted into the through-hole to be grasped and the graspability can be improved.

According to the third aspect of the present invention, the recess is formed in the upper side surface position of the grip portion with which the thumb comes into contact when gripped by the hand, so that the thumb is sufficiently brought into close contact with the grip portion to ensure gripping. There is an effect that the gripping property can be improved.

According to the fourth invention, by forming the thumb insertion portion in which the upper portion into which the thumb is inserted when the grip portion is gripped by the hand is made larger than the other lower portions, in the holding concave portion, There is an effect that the thumb can be sufficiently inserted into the thumb insertion portion to be surely gripped, and the gripping property can be improved.

According to the fifth aspect of the invention, the thumb insertion portion and the other finger insertion depression portion formed in the respective holding depression portions are formed deeper than the center position in the width direction of the grip portion, so that the thumb and the other fingers can be removed. There is an effect that the grip portion can be securely gripped by being inserted deeper and the grip performance can be improved.

According to the sixth aspect of the present invention, the stretch blow molding container having the grip portion is taken out from the blow cavity mold, and then the pair of concave surface portions to be dismissed by the welding device are welded and fixed to each other easily and easily. There is an effect that it is possible to form a stretch blow-molded container with a grip portion in which the concave portions are securely welded and fixed.

According to the seventh invention, after the stretch blow-molded container having the grip portion is taken out from the blow cavity mold, it is aligned by the aligning machine and carried into the welding device, and a pair of concave surface portions facing each other are arranged. There is an effect that the stretch blow-molded container with the gripped portion, in which the concave portions are welded, can be automatically lined and manufactured by welding and fixing.

According to the eighth aspect of the invention, by welding the concave surface portions of the holding concave portion using the ultrasonic welding device, it is possible to easily and reliably weld the facing surfaces of the pair of concave surface portions from the outside. The effect is that you can do it.

According to the ninth aspect of the invention, the pair of concave surface portions are welded at least at the peripheral edge portions, and the concave surface portions are cut off to form the through holes while leaving the welded peripheral edge portions, whereby the gripping portion can be reliably held. There is an effect that it is possible to easily manufacture a stretch blow-molded container with a gripping part capable of gripping.

According to the tenth aspect of the invention, the stretch blow-molded container having the gripping portion is taken out from the blow cavity mold, and a pair of opposing concave surface portions are cut off leaving a peripheral edge portion to form a through hole. By bonding and fixing the peripheral portions of the remaining concave surface portions with an adhesive, it is possible to easily form a through hole having a peripheral portion securely bonded with the adhesive, and to prevent leakage of contents. The effect is that it can be easily prevented.

According to the eleventh aspect of the invention, the concave portion is stretched and oriented as a part of the side wall of the container, and the peripheral portion around the through hole left in the concave portion is also stretched and oriented, and the thickness is thin and uneven. Since it is in such a state that it is difficult to evenly weld the entire peripheral edge portion, a ring member made of synthetic resin that is separately formed and has a uniform thickness and is not oriented is applied to this peripheral edge portion. By welding and fixing the peripheral portions to each other by the member, there is an effect that the thickness of the welded portion can be increased and a uniform welded state can be obtained.

According to the twelfth aspect of the present invention, the stretch blow molding apparatus, the welding apparatus, and the conveying means constitute the manufacturing apparatus, whereby the gripping portion in which the opposed surfaces of the pair of concave surface portions of the gripping concave portion are welded to each other. There is an effect that it is possible to manufacture a stretch-blow molded container.

According to the thirteenth invention, by arranging a stretch blow molding container aligning machine in the middle of the conveying means, there is an effect that an automatic line becomes possible.

According to the fourteenth invention, by using the ultrasonic welding device, it is possible to weld the concave surface portions of the holding recess after the stretch blow molding.

According to the fifteenth invention, the stretch blow molding apparatus comprises an injection molding station, a temperature control station, and
Stretch blow molding station, unloading station,
By being configured with the conveying means, there is an effect that the injection efficiency of the preform to the take-out of the stretch blow molded container can be performed in a series of steps, and the molding efficiency can be improved.

[0126]

[Brief description of drawings]

FIG. 1 is a front view showing a stretch blow-molded container with a grip portion according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the stretch blow-molded container with the grip portion taken along the line II-II in FIG.

FIG. 3 is a front view of the stretch blow-molded container with the grip shown in FIGS. 1 and 2 before welding, as viewed from the grip.

FIG. 4 is an IV-IV of the stretch-blow molding container with a grip shown in FIG.
It is a cross-sectional view taken along the line.

FIG. 5 is a cross-sectional view showing a state in which the concave surface portions of the holding concave portion are welded to each other using the ultrasonic welding device from the state of FIG.

FIG. 6 is a front view showing a stretch blow-molded container with a grip portion according to another embodiment of the present invention.

7 is a VII-V of the stretch blow molded container with the grip portion of FIG.
It is a cross-sectional view taken along line II.

FIG. 8 is a front view of a stretch blow molding container with a grip portion according to still another embodiment of the present invention, as viewed from the grip portion side.

FIG. 9 is a front view showing a stretch blow-molded container with a grip portion according to still another embodiment of the present invention.

FIG. 10 is a front view of a stretch blow-molded container with a grip portion according to still another embodiment of the present invention, as viewed from the grip portion side.

FIG. 11 is a plan view showing an apparatus for manufacturing a stretch blow-molded container with a grip portion according to an embodiment of the present invention.

12 is a vertical cross-sectional view of a blow molding die in the stretch blow molding station of FIG.

13 is a sectional view taken along line XIII-XIII of the blow molding die shown in FIG.

FIG. 14A is a partial front view of a container manufactured by a stretch-blow molding container manufacturing method according to another embodiment,
(B) is a perspective view of the ring member used in (A), and (C) is a sectional view taken along the line cc of (A).

FIG. 15 is a process drawing showing a state of welding using the ring member of FIG.

FIG. 16 is a process diagram showing a state in which one sheet-shaped ring member is used for welding.

FIG. 17 is a process diagram showing a state in which two sheet-shaped ring members are used for welding.

[Explanation of symbols]

 10 Stretch Blow Molded Container 22 Side Wall 24 Container Main Body 26 Gripping Part 28 Gripping Recess 30 Hollow Part 32 Concave Surface 36 Facing Face 38 Ultrasonic Welding Device 46 Through Hole 48 Thumb 50 Recess 52 Thumb Insert 54 54 Thumb Insert Recess 56 Finger 58 Other finger insertion recess 60 Manufacturing device 62 Stretch blow molding device 64 Ultrasonic welding device 66 Conveying means 68 Alignment device 78 Rotating plate 84 Injection molding station 86 Temperature control station 88 Blow molding station 90 Ejection station 94 Blow cavity type 100 Pressing member 102, 104 Ring member

Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical indication // B29K 67:00 B29L 22:00

Claims (15)

[Claims] 1. A stretch-blow molding container obtained by stretch-blow molding a polyethylene terephthalate preform, wherein the side wall of the container body is formed continuously with the side wall of the container body and communicates with the inside of the container body. A gripping portion having a hollow portion, and on both side portions surrounded by the gripping portion and the side wall of the container body,
The gripping portion and a side wall of the container body, and a gripping concave portion having a pair of concave surface portions that are formed continuously with each other, and the facing surfaces of the pair of concave surface portions are fixed by welding. Stretch-blow molding container with gripping part. 2. The stretch blow-molded container with a grip portion according to claim 1, wherein the pair of concave surface portions have a through hole that is cut off while leaving the welded peripheral edge portion. 3. The stretch blow-molded container with a grip according to claim 1 or 2, wherein the grip has a recess at an upper side surface position where the thumb comes into contact when gripped with a hand. 4. The holding recess according to claim 1, wherein the holding recess has a thumb insertion portion in which an upper portion into which a thumb is inserted when holding the holding portion with a hand is formed larger than other lower portions. A stretch blow molding container with a gripping part. 5. The gripping recess on one side according to claim 1, wherein a concave surface portion of a portion corresponding to a thumb insertion portion into which a thumb is inserted when gripping the gripping portion with a hand is provided. There is a thumb insertion recess formed by being recessed to the other side from the center position in the width direction, and the gripping recess on the other side corresponds to another finger insertion part into which another finger except the thumb is inserted. A stretch blow-molded container with a grip portion, characterized in that it has another finger insertion concave portion formed by recessing the concave surface portion of the portion toward the one side from the center position in the width direction of the grip portion. 6. A method for producing a stretch blow molded container with a grip portion, the stretch blow molding container is molded by stretch blow molding a polyethylene terephthalate preform in a blow cavity mold. In the blow cavity mold, while leaving the gripping portion forming portion, the portions to be the gripping concave portions are pressed from both sides to form the gripping concave portions having a pair of concave surface portions facing each other, and at the side portion of the container body. Forming a grip portion having a hollow portion that is continuous with the side wall and the concave portion of the container body and communicates with the inside of the container body; and a stretch blow molding container having the grip portion formed in the blow cavity mold. And a stretch blow-molded container taken out from the blow cavity mold is carried into a welding device and is placed in the opposing chamber. And a step of welding and fixing the pair of concave surface portions to each other. 7. A method for producing a stretch blow molded container with a grip portion, which comprises forming a stretch blow molded container by stretch blow molding a polyethylene terephthalate preform in a blow cavity mold. In the blow cavity mold, while leaving the gripping portion forming portion, the portions to be the gripping concave portions are pressed from both sides to form the gripping concave portions having a pair of concave surface portions facing each other, and at the side portion of the container body. Forming a grip portion having a hollow portion that is continuous with the side wall and the concave portion of the container body and communicates with the inside of the container body; and a stretch blow molding container having the grip portion formed in the blow cavity mold. And the stretch blow-molded container taken out from the blow cavity mold are aligned by a aligning machine, and then placed in a welding device. A method of manufacturing a stretch blow-molded container with a grip portion, comprising: a step of carrying in and a step of welding and fixing the pair of opposed concave surface portions by the welding device. 8. The method for manufacturing a stretch blow-molded container with a grip portion according to claim 6, wherein an ultrasonic welding device is used as the welding device. 9. The welding device according to claim 6, wherein the pair of concave surface portions are fixed by welding by the welding device.
A method for producing a stretch blow-molded container with a grip, wherein at least the peripheral edge of the concave surface portion is welded, and the concave surface portion is cut off leaving the welded peripheral edge portion to form a through hole. 10. A method for producing a stretch blow-molded container, which comprises forming a stretch blow-molded container by stretch-blow molding a polyethylene terephthalate preform in a blow cavity mold, wherein the blow blow molding is performed during the stretch blow molding. In the cavity mold, leaving the gripping portion forming portion and pressing the portions to be the gripping concave portions from both sides to form a gripping concave portion having a pair of concave surface portions facing each other, and the container body on the side portion of the container body. A step of forming a gripping part having a hollow part that is continuous with the side wall and the concave part and communicates with the inside of the container body, and removes the stretch blow molded container having the gripping part from the blow cavity mold, A step of cutting out the pair of opposed concave surface portions of the taken out stretch blow-molded container leaving a peripheral edge portion to form a through hole; A method of manufacturing a stretch blow-molded container with a grip portion, which comprises: adhering and fixing the peripheral portions of the remaining concave surface portions with an adhesive. 11. A method for producing a stretch-blow molded container, which comprises forming a stretch-blow molded container by stretch-blow molding a polyethylene terephthalate preform in a blow cavity mold. In the cavity mold, leaving the gripping portion forming portion and pressing the portions to be the gripping concave portions from both sides to form a gripping concave portion having a pair of concave surface portions facing each other, and the container body on the side portion of the container body. A step of forming a gripping part having a hollow part that is continuous with the side wall and the concave part and communicates with the inside of the container body, and removes the stretch blow molded container having the gripping part from the blow cavity mold, A step of cutting out the pair of opposed concave surface portions of the taken out stretch blow-molded container leaving a peripheral edge portion to form a through hole; A stretch blow with a grip portion, comprising the steps of applying a separately molded ring member made of synthetic resin to the peripheral portion of the remaining concave surface portion, and fixing the peripheral portions by welding with this ring member. Molded container manufacturing method. 12. A hollow part communicating with the inside of the container body at a side portion of the container body when the polyethylene terephthalate preform is stretch blow molded in a blow cavity mold to form a stretch blow molded container. And has
A grip portion that is continuous with the side wall of the container body, and a pair of concave surface portions that are formed continuously with the grip portion and the side wall of the container body, on both side portions surrounded by the grip portion and the side wall of the container body. A stretch blow molding device that forms a holding concave portion, a welding device that welds and fixes the pair of concave surface portions of the stretch blow molding container taken out from the stretch blow molding device, and the stretch blow molding device to the welding device. And a conveying means for conveying the stretch blow-molded container, and a stretch blow-molded container manufacturing apparatus with a gripping part. 13. The stretch blow molding container with a grip according to claim 11, wherein an aligning machine for aligning the stretch blow molding containers taken out from the stretch blow molding device is arranged in the middle of the conveying means. apparatus. 14. The apparatus for manufacturing a stretch blow-molded container with a grip portion according to claim 11, wherein the welding device is an ultrasonic welding device. 15. The stretch blow molding apparatus according to claim 11, wherein an injection molding station for injection molding a preform, a temperature adjustment station for adjusting the temperature of the injection-molded preform, and the temperature adjusted mold. A stretch blow molding station for performing stretch blow molding on the reform, a take-out station for taking out the stretch blow molded container molded at the stretch blow molding station, and a conveying means for conveying a preform or a stretch blow molded container to each station, An apparatus for manufacturing a stretch blow-molded container with a grip, comprising: