JPS62275463A - Infusion container, its production and apparatus for molding the same - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an infusion container used for infusing Ringer's solution or the like into a similar person, a method for manufacturing the same, and a molding device for the same. It is related to.

[Prior art and its problems] Conventionally, when using this type of infusion container, the container was hung in a basket made of metal or the like with the mouth facing downward, and a stopper attached to the mouth was used. A needle was passed through his body.

To hang an infusion container as described above, a separate part, such as a basket made of metal and other materials, is required, which increases the cost and makes it difficult to install, manage parts, and transport. It was troublesome from other aspects as well. Therefore, an infusion container having a hanging member integrally formed at the bottom has been desired for some time.

On the other hand, in order to form two infusion containers, a method has been used in which a parison formed by extrusion molding or injection molding is formed by stretch blow molding in a container mold.

In the above-mentioned conventional method, integrally molding the hanging member on the parison makes the mold and process complicated, and also because the hanging member is not stretched to the hanging part O during stretch blow molding.
A product in which a hanging member was integrally molded on the bottom of an infusion container was not manufactured.

This invention has been made in view of the above circumstances, and it is therefore an object of the present invention to provide an infusion container with a hanging member that can be easily molded and manufactured, and also to provide a molding method and a molding device for the same.

[Means for Solving the Problems] (1) The infusion container according to the present invention is an infusion container that is used by suspending a bottomed cylindrical container body made of synthetic resin upside down. A hanging member is formed at the bottom, and the hanging member is formed by connecting a tongue piece made of synthetic resin to a connecting core integrally molded on the bottom of the container body (1 is a configuration). , (2) The method for manufacturing the infusion container includes the steps of (a) molding a parison in which a connecting core is integrally molded at the bottom of the body using a parison molding mold that obtains a main body cavity and a connecting core cavity; ) stretching the parison in the vertical and horizontal directions within the infusion container molding die having a tongue cavity forming a tongue; (c) stretching the parison in the vertical and horizontal directions within the infusion container molding die,
r17r17 Injecting a synthetic resin into the recording hole to mold a tongue piece, and connecting the tongue piece to a connecting core of the parison; (d) blowing the parison in the infusion container mold; (3) The infusion container forming mold device includes an upper mold for molding a container body of the infusion container; An infusion container forming mold device comprising a bottom mold disposed at the bottom of the upper mold, the upper mold being formed into a split mold that can be opened and closed in the radial direction, and the top mold of the bottom mold The surface forms an inner wall surface of the bottom part of the upper mold, and the bottom mold has a first bottom mold and a second bottom mold.
Bottom mold and mold;
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A tongue cavity is formed in a closed state between the mold and the '552 bottom mold, and the tip of the tongue cavity is communicated with the bottom of the upper mold, and the rear end thereof is connected to the bottom of the upper mold. The part is formed with an injection part communicating with the pot runner.

Embodiments] Hereinafter, embodiments of an infusion container, a method for manufacturing the same, and a molding device thereof according to the present invention will be described with reference to FIGS. 1 to 4. The symbol A in FIG. 1 is the infusion volume a+i according to this embodiment. This infusion container A consists of a bottomed cylindrical container body I made of thermoplastic synthetic resin, and a hanging member 2 formed at the bottom of the container body I.

The hanging member 2 includes a connecting core 3 integrally formed at the center of the bottom jl of the container body l, and a tongue piece 4.

A locking portion 3a for locking is formed at the head of the connecting core 3 and protrudes in one direction. Then, a tongue piece 4, which is injection molded later, is integrally molded with its end portion surrounding the engagement tL portion 3a and connected to form the hanging member 2.

Further, the tongue piece 4 is colored in a predetermined color and has a hanging hole 4a formed therein. This hanging hole 4a is a hole through which a hanging tool is inserted when the infusion container A is used upside down.

The container body 1 of the infusion container A constructed as described above is manufactured by stretch-blow molding a parison B as shown in FIG.

Therefore, the structure of the parison B, its molding method, and the parison mold C will be explained.

The parison B is made of a required thermoplastic synthetic resin, and has a bottomed cylindrical body part 6 having a flange 5 on the outer periphery of the mouth part.
and a connecting core 3 integrally molded on the bottom of the body 6.

The rR parison B is molded by injection molding using a mold C as shown in FIG.

The molding die C is formed into a split die, and a core 9 is inserted into and removed from the two ends of the die, which consists of a body die 7 and a neck die 8. It is recessed to form a cavity IO.

The cavity 10 is composed of an upper main body cavity 10a and a connecting core cavity 10b formed in communication with the lower end of the main body cavity lOa. An opening 10c for injecting resin from the real runner +1 is formed at the rear end of the connecting core cavity lOb.

The parison B is connected to the opening IO of the mold C.
Heat U- from the hot runner II to the required temperature through c.
The molded thermoplastic synthetic resin is injected into the cavity 10 (arrow A) and filled, and after cooling, the core 9
It is removed by pulling it out.

Next, a mold for forming an infusion container and a molding method for stretching and blow molding the parison B will be described.

The mold consists of an upper mold I2 and a bottom mold 13 disposed below the upper mold 12. The upper mold 12 is for molding the container body 1 of the infusion container,
It has a split type that can be opened and closed in the radial direction (arrow opening).

The bottom mold 13 is formed into a split mold consisting of a first bottom mold 13a and a second bottom mold +3b, and in the closed state, the top surface of the mold is the bottom inner wall of the top mold 12. In addition, a tongue piece cavity 14 is formed between the first bottom mold 13a and the second bottom mold 13b.

In the tongue piece cavity I4, a protrusion 13c for forming a hanging hole 4a is formed in one of the bottom molds 13a or +3b.

More iF? An injection part 16 into which resin is injected from the real runner 15 is formed at the rear end of the two-tongue cavity I3.

A method for manufacturing an infusion container A using the above-mentioned infusion container molding die will be explained. The parison B molded in the parison mold C is placed in the upper mold 12 of the mold C with the connecting core 3 facing downward, with the flange 5 sandwiched therebetween, while being maintained at an appropriate temperature.

Next, a stretching rod 17 inserted from the mouth of the parison B is used to stretch the bottom of the parison B to the bottom of the mold. In this case, the drawing rod 17 is driven by a flange, which is not shown.

Then, the acid 1 connection core 3 is sandwiched between the first bottom mold 13a and the second bottom mold 13b, and the bottom mold 1
3 is closed, compressed air is blown into the parison B from the mouth of the parison B using a blowing nozzle (not shown), and the parison B is stretched in the radial direction and blow molded.

Next, colored thermoplastic resin is injected and filled into the tongue cavity 14 from the injection part 16 of the bottom mold I3 using the real runner I5. In this way, the tongue piece 4 is formed, or in this case, the tip of the tongue piece 4 is connected to the connecting core 3 of the parison I3 so as to wrap around the connecting core 3, thereby forming the hanging member 2. and the tongue piece,
1, a hanging hole 4a is formed by a convex portion 13c. After the mold, etc. has cooled down after the above work, the mold 1
2.13 was opened and the infusion container A was not removed.

According to the infusion container of the above embodiment, since a hanging member 2 or 1 is provided at the bottom of the container body 1, no hanging device such as a basket is required during use, and the infusion container A can be easily moved. It is extremely convenient to hang it up.

Furthermore, since the locking portion 3a is formed on the connecting core 3, the tongue pieces 4 can be connected reliably.

In addition, since the tongue piece 4 of the hanging part (A 2) can be molded and connected separately to the container body 1, it can be colored in a predetermined manner. Due to the feces (as well as the resin of the tongue piece 4),
For example, you can select the intensity.

Further, since the container body 1 is stretched in two directions, the tensile strength is increased by i! It is outstanding in terms of impact resistance and transparency.

Furthermore, according to the molding method of this embodiment, the stretch blow molding process for the parison B and the molding and connecting process for the 4 tongue pieces are separate, so only the container body l can be stretch blow molded, and the hanging member It will not be extended by two towns.

Further, according to the container molding mold described above, since the upper mold 12 and the bottom mold 13 can be opened and closed separately, the container body I
Only the bottom mold 1 can be stretch-molded.
Since the tongue piece cavity 14 is provided in the tongue piece 3, there is no need to move the container body l to another mold in order to connect the tongue pieces 4, and the work efficiency is extremely high.

In the process of the above embodiment, the tongue piece 1 was molded and connected after the container body l was blow-molded, but the tongue piece 4 was molded and connected after the parison was stretched in the longitudinal direction, and then the container body l was molded and connected.
! ; The main body l may be blow molded.

Further, in the above embodiment, the connecting core 3 is the parison B.
Alternatively, as shown in FIG. 5, it may be formed in a convex cross section and approximately the same length as the diameter of the bottom. In this way, the connecting core 3 and the tongue piece 4 are connected more reliably, and the strength of the hanging member 2 can be improved.

[Effects of the Invention] As explained above, the infusion container according to the present invention has a structure in which a hanging member is formed at the bottom of the container body, so that it can be easily hung from a hanging tool during use. This is convenient, and since there is no need for a separate hanging device such as a basket, there is no hassle in terms of management, transportation, etc.

In addition, the hanging part O is formed by connecting a separate tongue piece made of synthetic resin to a connecting core integrally molded on the bottom of the container body, so that the infusion container has tongue pieces of various colors. It can be used in a variety of ways, such as by manufacturing and sorting the liquid content by color.

Furthermore, in this method of manufacturing an infusion container, the connecting core is integrally molded on the bottom part during parison molding, and the tongue piece is molded and connected during blow molding, so that the hanging member can be formed with simple work.

The color and material of the hanging member can be changed as desired.

In addition, in this infusion container molding device, a bottom mold having tongue portions A and B is provided at the bottom of the upper mold for molding the container body, so that a hanging member can be easily formed. If possible, there is no need to move the molded container body, so the work efficiency is extremely high.

Furthermore, since the upper mold and the bottom mold can be opened and closed independently, it is possible to stretch-blow mold only the container body.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the infusion container according to the present invention, so FIG. 1 is a front view of the infusion container according to this embodiment, FIG. 2 is a side view of the parison, and FIG. 1 is a sectional view of a parison mold, FIG. 1 is a sectional view of an infusion container mold, and FIG. 5 is a partial perspective view showing another modification of the connecting core. Δ...Infusion container, B...Parison, C...
Parison mold, D・・Infusion container mold, L・・
... Container main body, 2 ... Hanging member, 3 ... Connection core, 4 ... Tongue piece, IOa ... Main body cavity, 101] ... Connection core cavity, 11
, I5...71; Sotolanna, 12... Upper mold, 13... Bottom mold, 13a... First bottom mold, 13b... Second Bottom mold, l.1... tongue piece cavity.

Claims (3)

[Claims] (1) An infusion container in which a cylindrical container body with a bottom made of synthetic resin is hung upside down, and a hanging member is formed at the bottom of the container body, and the hanging member includes:
An infusion container characterized in that a tongue piece made of synthetic resin is connected to a connecting core integrally molded on the bottom of the container body. (2) (a) A process of molding a parison with a connecting core integrally molded at the bottom of the body using a parison molding mold having a main body cavity and a connecting core cavity, (b) A tongue piece forming a tongue piece (c) stretching the parison in the vertical and horizontal directions in an infusion container mold having a cavity; (c) injecting a synthetic resin into the tongue cavity of the mold in the infusion container mold; Along with shaping the pieces,
A method comprising the following four steps: connecting the tongue piece with a connecting core of the parison; (d) molding the parison into the infusion container by blow molding in the infusion container mold and taking it out. A method for manufacturing an infusion container according to scope 1. (3) An infusion container forming mold device comprising an upper mold for molding a container body of an infusion container, and a bottom mold disposed at the bottom of the upper mold, wherein the upper mold has a diameter It is formed into a split mold that can be opened and closed in the direction, and the top surface of the bottom mold is
The bottom mold forms an inner wall surface of the bottom part of the upper mold, and the bottom mold is formed into an openable and closable split mold consisting of a first bottom mold and a second bottom mold. Between the two bottom molds,
A tongue cavity is formed in the closed state, the tip of the tongue cavity communicates with the bottom of the upper mold, and the rear end thereof is formed with an injection part communicating with the hot runner. An infusion container molding device according to claim 2.