JPH10120426A - Production of seamless vessel using glass bottle-making machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bottle production that can produce seamless bottles by means of a glass bottle-making machine. SOLUTION: To the funnel arm 2 in the glass bottle-making machine, is attached a cylindrical bottle mold 5 for forming the body part of the bottle having an escaping taper that the lower part is smaller than the upper part. The funnel arm 3 is actuated to fit the bottle mold 5 on the mouth mold 6 so that the bottle mold 5 and the mouth mold 6 are held and fixed by the dummy mold 8. Then, a gob is introduced into the bottle mold 5, the baffle 9 is moved to close the small opening of the bottle mold 5, the plunger 10 is inserted from the large opening into the bottle mold to press-mold the gob.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a seamless container using a glass bottle machine.

[0002]

2. Description of the Related Art Conventionally, production of mass-produced glass containers by a glass bottle machine is generally performed by a method having a process called press and blow and a method having a process called blow and blow.

[0003] A glass bottle machine has two forming parts, a rough mold side and a finishing mold side. In the case of press and blow, a reverted mouth mold on the rough mold side is fixed with a rough mold. After gobping into the rough mold, lower the baffle, then raise the plunger and press the gob to form a parison, then the mouth mold inverts to the finish mold side and transfers the parison to the finish mold,
In the case of blow-and-blow, fix the reverted mouth mold on the rough mold side with the rough mold, gob-in into the rough mold and lower the baffle. The parison is formed by performing settle blow and counter blow, then the mouth mold is inverted to the finish mold side, the parison is transferred to the finish mold, and vacuum or final blow is performed. According to such a glass bottle machine, the rough mold, the mouth mold, and the finish mold are each divided vertically into two parts and supported so as to open and close right and left.

[0004]

As described above, according to the conventional glass bottle machine, the mold for molding the container is divided into two parts in the vertical direction, so that the body of the molded container is fitted with the mold. The eyes were always made.

[0005] It is an object of the present invention to provide a method of manufacturing a container which enables the manufacture of a seamless container by a glass bottle machine.

[0006]

A first aspect of the present invention is a cylindrical container mold for forming a tapered container body in which a lower portion of a container is smaller than an upper portion and is tapered on a funnel arm of a glass bottle machine. The cylindrical container mold was placed on the mouth mold by the operation of the funnel arm, and the cylindrical container mold and the mouth mold were hugged and fixed by the dummy rough mold, and the cylindrical container mold was made to gob in. Thereafter, the baffle is moved to close the small-diameter opening of the cylindrical container mold, and a plunger is inserted into the cylindrical container mold from the large-diameter opening to press-mold the gob.

According to this method, since the body of the container is formed by the cylindrical container mold, a container having no seam can be formed.

According to a second aspect of the present invention, there is provided a cylindrical container mold in which the lower portion of the container is smaller than the upper portion and forms the body of the container having a tapered shape, and is disposed in the large-diameter opening of the cylindrical container mold. Prepare a split shoulder mold to form the shoulder of the container, attach the cylindrical mold to the funnel arm of the glass bottle machine, attach the split shoulder mold to the coarse mold holder arm, and operate the cylindrical container by the operation of the funnel arm. The mold is arranged above the mouth mold, and then the large-diameter opening of the tubular vessel mold and the mouth mold are hugged and fixed by the split shoulder mold by the operation of the rough mold holder arm. After the gob-in, the baffle is moved to close the small-diameter opening of the cylindrical container mold, and settle blow and counter blow are performed.

According to this method, since the body of the container is formed by the cylindrical container mold, a container having no seam at the body can be formed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below. The invention described in claim 1 uses the rough mold side of a glass bottle machine having a conventional press and blow process, and FIG. 1 shows the rough shape of the glass bottle machine used in this example. It is sectional drawing which shows the apparatus of a type | mold.

In the figure, 1 is a plunger mechanism, 2 is a funnel arm, 3 is a coarse holder arm,
4 is a mouth-shaped arm. Reference numeral 5 denotes a cylindrical cylindrical container mold for molding the body of a container having a tapered surface with a lower portion that is smaller than the upper portion, and has a conical inner surface corresponding to the body of the container. And is supported by the funnel arm 2 to be moved up and down. Reference numeral 6 denotes a die which is disposed at the large-diameter opening of the cylindrical container mold 5 and forms a mouth of a container formed by the cylindrical container mold 5, and the die 6 is divided into two parts in the vertical direction. And the mouth-shaped arm 4
And open and close in the left-right direction.
7 is a guide ring.

Reference numeral 8 denotes a dummy rough mold.
Is divided into two in the vertical direction, and is supported by the rough mold holder arm 3 so as to open and close in the left-right direction. Then, by closing the dummy rough mold 8, the mouth mold 6 and the cylindrical container mold 5 arranged on the mouth mold 6 are hugged and fixed.

Reference numeral 9 denotes a baffle for closing the small-diameter opening of the cylindrical container mold 5, which has a surface for forming the bottom of the container. Reference numeral 10 denotes a plunger, 11 denotes a plunger adapter, 12 denotes a lifting rod, and 13 denotes a plunger guide.

This embodiment is implemented as follows by the above-described apparatus. First, the funnel arm 2 is lowered to dispose the cylindrical container mold 5 on the mouth mold 6, and then the coarse mold holder arm 3 is closed and the dummy rough mold supported by the rough mold holder arm 3 is moved. By 8, the cylindrical container mold 5 and the mouth mold 6 are hugged and fixed.

After the cylindrical container mold 5 and the mouth mold 6 are fixed, a gob is put into the cylindrical container mold 5 and then the baffle 9 is lowered to close the small-diameter opening of the cylindrical container mold 5. Then, the plunger 10 is raised by operating the elevating rod 12, and the plunger 10 is inserted into the cylindrical container mold 5 by inserting the plunger 10 into the cylindrical container mold 5 from the large-diameter opening. Press Gob. The gob is pressed on the inner peripheral surface of the cylindrical container mold 5 and the outer peripheral surface of the plunger 10 to form a container A having a lower tapered body with a lower portion smaller than the upper portion.

After the container A is formed in this manner, the plunger 10 is lowered to remove the container A from the cylindrical container mold 5, and the baffle 9 is raised to separate the container A from the cylindrical container mold 5. The holder arm 3 is operated to open the dummy rough mold 8 to release the fixing of the cylindrical container mold 5 and the mouth mold 6, and the funnel arm 2 is raised to pull up the cylindrical container mold 5.
As a result, the cylindrical container mold 5 is removed from the container A, and the container A having no seam remains on the body 6 on the mouth mold 6, and this is inverted by appropriate means.

If the container A thus formed is already a finished product, only the bottom die is arranged on the finishing die side, the container A is transported there and settled, and then taken out for commercialization. Alternatively, in the case of an unfinished product, it can be transferred to the finish die side and blow-molded on the finish die side.

In this case, an apparatus on the finishing type side is disclosed in Japanese Patent Application No. 3-249502 filed by the present applicant (JP-A-5-857).
No. 42) is used. The basic configuration of this apparatus is composed of an upper finishing mold for molding the upper part of the container, a lower finishing mold for molding the lower part, and a bottom mold for molding the bottom part. It is supported so as to open and close left and right, is formed in a tubular shape in the lower finishing die, is supported so as to move up and down, and is fixedly supported in the bottom die.

In the present embodiment, the lower finish mold and the bottom mold of the apparatus proposed in the above-mentioned Japanese Patent Application No. 3-249502 are used, and as shown in FIG. Invert the supporting die 6 to lower the container A into the lower finishing die 14.
After removing the die 6 from the container A, vacuum or final blow is performed to finish-mold the container A.
When the finish forming of the container A is completed, the lower finishing die 14 is lowered from the container A whose bottom is supported by the fixed bottom die 15 by lowering the lower finishing die 14, and the lower finishing die 14 is placed on the bottom die 15 at the trunk. The container A without seams remains, and this is taken out by appropriate means.

The invention described in claim 2 uses the rough mold side of a conventional glass bottle machine having a blow-and-blow process. FIG. 3 shows a glass bottle used in this embodiment. FIG. 2 is a cross-sectional view showing a device on a rough mold side of the machine.

In the figure, 16 is a machine body, 17 is a funnel arm, 18 is a rough holder arm, and 19 is a mouth arm. Reference numeral 20 denotes a cylindrical cylindrical mold for forming the body of the container having a tapered lower portion with a lower taper than the upper portion, which has a conical seamless inner surface corresponding to the body of the container. It is supported by the funnel arm 17 and is moved up and down. Reference numeral 21 denotes a split shoulder type which is disposed in the large-diameter opening of the cylindrical container mold 20 and forms a shoulder portion of the container. It has become. Reference numeral 22 denotes a mouth mold for forming a mouth portion of the container.
It is supported by and opens and closes left and right. And
The large-diameter opening of the cylindrical container mold 20 and the mouth mold 22 are held and fixed by a closed shoulder mold 21 that closes. 23 is a guide ring.

Reference numeral 24 denotes a baffle for closing the small-diameter opening of the cylindrical container mold 20 and has a surface forming the bottom of the container. 25 is a plunger, 26 is a lifting rod.

This embodiment is implemented as follows by the above-described apparatus. First, the funnel arm 17 is lowered to position the cylindrical container mold 20 at a predetermined position above the mouth mold 22,
Next, the rough mold holder arm 18 is closed and the large-diameter opening of the cylindrical container mold 20 and the mouth mold 22 are held and fixed by the split shoulder mold 21 supported by the rough mold holder arm 18.

After the cylindrical container mold 20 and the mouth mold 22 are fixed, a gob is put into the cylindrical container mold 20, and then the baffle 24 is lowered to close the small-diameter opening of the cylindrical container mold 20. Then, after performing the settling blow, the lifting rod 26 is operated to lower the plunger 25 to perform the counter blow. The gob swells due to the counter blow, and the inner peripheral surface of the cylindrical container mold 20 forms a tapered container body with a lower part being smaller than the upper part, and a split shoulder mold 21 forms a shoulder at the upper part of the body. Is done.

After the container B is formed in this manner, the baffle 24 is raised to separate the container B from the cylindrical container mold 20 and then the rough mold holder arm 18 is operated to operate the divided shoulder mold 21.
Is opened to release the fixation of the cylindrical container mold 20 and the mouth mold 22, and the funnel arm 17 is raised to raise the cylindrical container mold 20. As a result, the cylindrical container mold 20 comes off from the container B, and the container B having no seam remains on the body portion 22 on the opening die 22, and this is taken out by appropriate means.

The container B thus formed can be transferred to the finishing die as needed to finish form. In this case, the device on the finishing die side is the same as that of the embodiment of the invention described in claim 1 described in Japanese Patent Application No. Hei.
The device proposed in 9502 is used.

In this embodiment, an upper finishing die, a lower finishing die and a bottom die are used, and as shown in FIG.
, A lower finishing die 28 as a body finishing die, a bottom die 29 as a bottom finishing die, and an inverting die 22 supporting an opening of the container B molded on the rough die side. Then, the container B is transferred to the lower finishing die 28, and then the upper finishing die 27 which is opened right and left is closed to hold the shoulder of the container B,
After the die 22 is removed from the container B, vacuum or final blow is performed to finish-mold the container B.

When the finish forming of the container B is completed, the upper finishing die 27 is opened right and left, and the lower finishing die 28 is lowered, thereby lowering the lower finishing die 29 from the container B whose bottom is supported by the fixed bottom die 29. The mold 28 comes off, and a container B having no seam remains on the bottom mold 29 on the bottom mold 29, which is taken out by appropriate means.

[0029]

As described above, according to the present invention, it is possible to use a conventional glass bottle machine to form a container having a seam that is not possible with a glass bottle machine in the shape of the body. Although there are restrictions, they can be easily manufactured, and diversification of containers manufactured by a glass bottle machine can be achieved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of an apparatus used for carrying out the present invention.

FIG. 2 is a sectional view showing an example of an apparatus used for carrying out the invention described in claim 1;

FIG. 3 is a sectional view showing an example of an apparatus used for carrying out the invention described in claim 2;

FIG. 4 is a sectional view showing an example of an apparatus used for carrying out the invention described in claim 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine main body 2 Funnel arm 3 Rough holder arm 4 Mouth arm 5 Cylindrical container mold 6 Mouth 7 Guide ring 8 Dummy rough mold 9 Baffle 10 Plunger 11 Plunger adapter 12 Lifting rod 13 Plunger guide 14 Lower finish Mold 15 Bottom mold 16 Machine body 17 Funnel arm 18 Coarse mold holder arm 19 Mouth arm 20 Cylindrical container mold 21 Split shoulder mold 22 Mould 23 Guide ring 24 Baffle 25 Plunger 26 Lifting rod 27 Upper finish mold 28 Lower finish 28 Type 29 Bottom type

Claims (2)

[Claims] 1. A cylindrical container mold for forming a body portion of a container having a tapered lower part with a lower part of the container being smaller than an upper part, attached to a funnel arm of a glass bottle machine, and a cylindrical container die by the operation of the funnel arm. Is placed on the die, and the cylindrical container die and the die are hugged and fixed by the dummy rough die, and after the gob-in to the cylindrical container die, the baffle is moved to remove the cylindrical container die. A method for manufacturing a seamless container by a glass bottle machine, comprising closing a small-diameter opening, inserting a plunger into a cylindrical container mold from the large-diameter opening, and press-molding a gob. 2. A cylindrical container mold in which the lower part of the container is smaller than the upper part and forms a body of the container having a tapered shape, and a shoulder part of the container arranged at a large-diameter opening of the cylindrical container mold. Prepare a split shoulder mold, attach the cylindrical container mold to the funnel arm of the glass bottle machine, attach the split shoulder mold to the rough holder arm, and move the cylindrical container mold above the mouth mold by the operation of the funnel arm. Then, the large-diameter opening of the cylindrical container mold and the mouth mold are hugged and fixed by the split shoulder mold by the operation of the coarse mold holder arm, and after the gob-in to the cylindrical container mold, the baffle is removed. A method for producing a seamless container using a glass bottle machine, wherein the container is moved to close a small-diameter opening portion of a cylindrical container mold, and settle blow and counter blow are performed.