JPH0588141B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is a glass-made material for storing powdered substances, etc., and dissolving them by inserting a syringe needle through a rubber stopper and injecting distilled water during use. This document relates to vials and their manufacturing method, and even when the rubber stopper used is a laminate rubber stopper made of fluororesin, etc., it is possible to improve the sealing of the opening of the rubber stopper, that is, to improve the airtightness. It is characterized by what it has accomplished.

(Prior Art) In conventional glass vials, the bottle opening is formed using a mouth mold, and then the container is formed by blow molding. Therefore, as shown in Figures 4 and 5, the shaped vial, including the top of the mouth, has viscosity differences due to temperature unevenness that occurs when molten glass solidifies. Wrinkled celestial muscles A were inevitably formed.

The vial is usually sealed by fitting a stopper made of rubber into elastic contact between the circumferential surface of the plug body and the inner surface of the bottle hole.

(Problem to be Solved by the Invention) When the lid is covered with an elastic rubber stopper made of butyl rubber, etc., the sealing action is partially due to the elastic contact between the insertion body circumference of the stopper and the inner surface of the bottle hole. However, if the wrinkle-like top line A is formed on the top surface of the bottle mouth as described above, the airtightness may not be sufficient.

In addition, in particular, when using a rubber stopper whose surface is laminated with fluororesin or the like on the surface of butyl rubber, in order to eliminate the harmful effects of contents adhering to the rubber stopper and to prevent the incorporation of fine particles, the rubber surface may be damaged due to the lamination treatment. Because of the hardening, it is not possible to use the above-mentioned sealing method based on elastic contact between the barrel circumferential surface of the stopper and the inner surface of the bottle hole. Although a sealing effect is required from the close contact between the bottom surface and the top surface of the mouth of the bottle, the presence of the wrinkled top strip A formed on the top surface of the mouth of the bottle as described above is due to the fact that the rubber stopper flange This inevitably led to problems such as the adhesion of the bottle to the top of the bottle mouth was significantly inhibited, and the airtightness was impaired.

In other words, with the advent of vacuum vial preparations, the vials are now required to be particularly airtight.

On the other hand, rubber stoppers for various purposes, including chemical-resistant laminated rubber stoppers, have been developed. However, depending on the type of rubber stopper, there are many defective products that pose problems in terms of airtightness. The reason for this is that conventional vials have wrinkled top lines on the top surface of their mouths due to the manufacturing process. They were forced to become the cause of defects. In the past, beer bottles, etc., were subjected to a so-called "mouth-burning treatment," but when a vial bottle was subjected to the conventional "mouth-burning treatment," the top surface of its mouth becomes an arc,
Therefore, it has been customary not to apply such a "burning treatment" to vials, since this inevitably has the disadvantage of impairing the airtightness during capping.

The present invention focuses on the fact that when mouth-burning treatment is performed under specific conditions, it is possible to eliminate the corrugated ridges without causing the top surface of the mouth to become arcuate. This makes it possible to provide a glass vial that solves the problems of the prior art.

(Means for Solving the Problems) The present invention provides a well-known glass vial in which the mouth portion 2 is formed based on mold clamping, and the viscosity caused by the temperature unevenness that occurs when the molten glass solidifies. The top surface 3 of the mouth portion having wrinkled top lines formed by the difference is made by a mouth-burning process to have mirror-like luster and smoothness without the above-mentioned wrinkled top lines, and to have a flat surface. This invention relates to a glass vial characterized by being configured to have a flat surface.

The rubber stopper 4 used in the present invention has a flange portion 4 for tightly contacting the mouth top surface 3 described above.
The stopper 4 is made of butyl rubber, or its entire surface is laminated with fluororesin.

In the method according to the present invention, a known glass vial having a mouth portion 2 formed by mold clamping is subjected to a predetermined molding treatment, and then placed in an annealing furnace as the next step. Immediately before the slow cooling process is performed, the mouth top surface 3 is By using a burner equipped with a crease spout with a diameter matching that of the above-mentioned 〓
A method for manufacturing a glass vial characterized by performing a molding process to form a shape with mirror-like luster and smoothness, with no vertical lines, and a flat surface. This is related.

(Function) The present invention can be used in exactly the same manner as existing vials. That is, the powder substance is contained therein, and the container is hermetically sealed with a rubber stopper 4 interposed therebetween. When in use, a needle of a syringe is inserted through the upper surface of the rubber stopper 4, distilled water is injected to dissolve the contained substance, and then the substance is taken out using the syringe or other means.

Even if the rubber stopper 4 used in the present invention is surface-hardened, when the rubber stopper 4 is brought into close contact with the mouth top surface 3 of the flange portion 4a of the rubber stopper 4, the mouth top surface 3 is sealed. Since the surface 3 has no top line and is a flat surface, good adhesion can be obtained.

(Example) An example of the structure of a vial according to the present invention shown in the drawings will be described in detail as follows.

In the figure, 1 is a glass vial, 2 is the mouth of the vial 1, and the mouth 2 is molded based on mold clamping. 3 is the above mouth part 2
The top surface 3 has been subjected to a mouth-burning process to eliminate wrinkled top lines that are formed due to viscosity differences due to temperature unevenness that occurs when the molten glass solidifies during bottle molding. It is constructed so that it melts and disappears, and has a shape with mirror-like luster and smoothness, and a flat surface.

4 is a rubber stopper that is provided with a flange portion 4a that can tightly fit onto the top surface 3 of the mouth portion of the vial bottle 1 and that is fitted into the mouth portion 2 in a sealed manner,
The rubber stopper 4 is made of butyl rubber and its entire surface is laminated with fluororesin.

Furthermore, as mentioned above, the top surface of the mouth part is constructed so as to have a mirror-like luster and smoothness without the above-mentioned wrinkled top lines, and to have a flat surface that is flush with the surface. The reason for this is to make good surface contact with the flange portion 4a of the rubber stopper 4 and to obtain remarkable adhesion. Therefore, when forming the mouth based on the mouth burning process described above, measures should be taken to prevent the surface of the mouth top surface 3 from becoming curved. This is just a mouth-burning process.
The surface tension of the molten glass material acts on the top surface,
This is because the top surface portion becomes arcuate.

The specific means for forming the opening based on the mouth burning process described above will be described in detail in the following embodiments of the manufacturing method according to the present invention.

Next, specific examples of the manufacturing method according to the present invention will be described below.

In FIG. 3, reference numeral 10 is a conveyor for feeding the vial 1, which has just been molded and die-cut using existing molding means, into an annealing furnace 11. In this method, the molded material is subjected to mouth baking treatment in the following manner immediately before being sent to the slow cooling furnace 11.

The burning burner 12 used in the present invention has a flame spouting opening having a diameter that matches the diameter of the mouth top surface 3 of the vial 1 to be burnt, as shown in FIG. Use a device configured to have This restricts the flame ejected from the burner 12 from being blown to areas other than the top surface of the mouth of the vial 1, and prevents the outer periphery of the top surface 3 of the mouth of the vial 1 from becoming arcuate. This is why we are letting them do so.

The vial bottle 1 immediately after being formed is at a high temperature of about 600°C, and the vial bottle 1 is fed into the annealing furnace 11 and the temperature is gradually lowered to about 200°C via the annealing furnace 11. This removes distortion from the glass.

Now, the mouth burning process using the burner 12 described above is performed by heating the vial 1, which is at a high temperature of about 600°C immediately after molding, from the top surface to a temperature of about 1500 to 2000°C. The flame of temperature
It instantly burns the mouth by spraying it for about 0.3 to 0.5 seconds. That is, the mouth-baking process is
In this way, since the process is carried out instantaneously at high temperature on the vial bottle 1 immediately after molding, which is in a high temperature state, only the top bar A on the top surface of the mouth part is melted and removed instantly. The top surface is formed into a flat surface that has a mirror-like luster and smoothness without wrinkled top lines. In other words, when the flame jet from the burner 12 is sprayed over the diameter of the mouth top surface 3 and when the above-mentioned non-instantaneous burning treatment is performed, the mouth top surface of the vial 1 is overheated. leading to melting,
The surface becomes arcuate, but since the manufacturing method according to the present invention employs the mouth burning method as described above,
This effectively avoids the occurrence of such a circular arc phenomenon.

(Effects of the Invention) In the present invention, the top surface 3 of the mouth part is formed to be free of wrinkle-like unevenness based on the mouth-baking process, so the rubber stopper 4 used as described above is made of fluorine resin or the like. Even in the case of the laminated rubber stopper, when the flange portion 4a of the rubber stopper 4 is brought into close contact with the top surface 3 of the mouth portion, problems such as interference with adhesion due to the presence of wrinkle-like irregularities are completely eliminated. Furthermore, the present invention is configured such that the top surface 3 of the mouth part has a mirror-like gloss and smoothness even after the mouth-burning process is performed, and has a flat surface. Since the spout top surface 3 is not shaped into an arcuate shape due to the mouth baking process, the adhesion of the flange portion 4a of the rubber stopper 4 can be achieved while maintaining surface uniformity. Therefore, the above-mentioned arange portion 4a is caused by the arcing of the top surface of the mouth based on the surface tension that occurs when the mouth-burning process is simply performed.
Problems such as lack of adhesion to the surface can be avoided.

According to the present invention, as described above, the use of the fluororesin or other laminated rubber stopper 4 is permitted without any problems in terms of sealing. The purpose of storing powdered substances, etc. in vials is achieved, which completely eliminates problems such as content adhesion to rubber stoppers and contamination of fine particles, which occur when using rubber stoppers that have not been properly laminated. becomes.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is a longitudinal sectional view of the present invention, Figure 2 is a front view of the same as above, Figure 3 is an explanatory schematic diagram showing the mouth baking process in the method of the present invention, and Figure 4 is an enlarged front view showing the mouth of a conventional bottle. FIG. 5 is a plan view of the same as above. A... wrinkled top, 1... vial, 2... mouth, 3... top, 4... rubber stopper, 4a... flange, 10... conveyor, 11... slow cooling furnace, 1
2... Burner for mouth-burning.

Claims (1)

[Claims] 1. In a known glass vial in which the mouth portion 2 is formed by mold clamping, wrinkles are formed due to viscosity differences due to temperature unevenness that occurs when the molten glass solidifies. Mouth top surface 3 with shaped top strips
A glass product characterized in that it is configured to have a mirror-like luster and smoothness without the wrinkled top lines, and has a uniform flat surface based on a mouth-burning process. vial bottle. 2. In a known glass vial in which the mouth part 2 is formed based on mold clamping, the vial is subjected to a predetermined molding process, and then subjected to the next step, an annealing process in an annealing furnace. Immediately before the melted glass solidifies, a crease with a diameter that matches the mouth top surface 3 is formed against the mouth top surface 3 having a wrinkled top surface formed based on the difference in viscosity that occurs when the molten glass hardens. Using a burner equipped with a spout, heat the temperature from the top of the burner to 1500~
By applying an instantaneous mouth-baking process at 2000℃ for about 0.3 to 0.5 seconds, the shape has a mirror-like luster and smoothness without the wrinkled top lines mentioned above, and has a flat surface. A method for manufacturing a glass vial characterized by performing a molding process to achieve the following.