JPS6020332B2 - Method for manufacturing a glass bottle with a concave center inside the bottom of the bottle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is designed to reduce the amount of glass dust that occurs by forming the inner surface of the dust bottom at its lowest center and at its outer periphery so that even a small amount of the remaining reagent can be collected in the center of the shell and utilized. Regarding the manufacturing method.

As shown in Figure 8, the bottom of the wing of the reagent trench is made thicker at the center and lower at the outer periphery.

This occurs because when the parison, which has been preformed in a rough mold, is put into a finishing mold and inflated by air pressure, the outer periphery of the dust bottom is stretched. Naturally, when the remaining amount of the reagent becomes low, the flea 8 moves the reagent L to the outer circumferential side of the groove bottom 83.
accumulates. Reagents are often automatically sucked up and used by an automatic dropper device 9 connected directly to the vertical movement unit, but with this method, the reagent L accumulated on the outer periphery of the wing bottom cannot be sucked up, and expensive reagents cannot be used. I had a problem with wasting it. In the present invention, when molding a parison, the bottom part of the parison is formed so that the outer circumferential side is thicker than the center part by a buttful that bulges at the center, and this is provided with a bottom that is concave in the center and has an annular groove on the outer periphery. Transfer to a finishing mold and blow air to align the bottom with the bottom, so that the center of the inner surface of the bottom is recessed more than the outer periphery and the outer periphery has short legs corresponding to the grooves. The purpose of the present invention is to provide a method for producing fleas with outstanding characteristics.

Since the center of the inner surface of the dust bottom is lower than the outer periphery, even when the reagent content is sucked up by the automatic suction spot, even the last drop of the reagent is not wasted.

The present invention will be specifically described below based on embodiments shown in the drawings.

FIG. 1 shows an example of a glass crab produced by the method of the present invention, in which the wings 8 have a height of about 5 cm, and the outer diameter of the ears 81 is about 34 cm.

The bell has a short annular leg 84 on the outer periphery of the bottom 83.
The center of the inner surface of the eel sole 83 is roundly bulged outward, that is, the inner surface of the bottom gradually becomes lower toward the center.

The thickness of the bridge portion 81 and the dust bottom 83 is approximately 2 sails.

The above-mentioned sword is manufactured using a blow-and-blow crane making machine. The manufacturing process using the above-mentioned crane making apparatus is known as shown in FIG.
2 is attached to the rough mold 1, and the rough mold 1
A molten glass lump or gob 70 is dropped into the glass.

As shown in FIG. 3, a funnel 11 is applied to the lees mold 1 and air is blown from a blow head 12.

The space C formed between the plunger 22 and the neck ring 2 is filled with the gob 70 to form a honey mouth part 82.
As shown in FIG. 4, the lees mold 1 is inverted, and the baffle 3 is applied to the rough mold 1 instead of the funnel 11, and the plunger 2
Remove mold 2 and blow air into rough mold 1 again.

As a result, a parison 7 having a shape along the inner surfaces of the phase mold 1 and the baffle 3 is formed.

The rough mold 1 is opened, and the parison 7 is placed on the finished mold 4 with the bottom 5 attached thereto, as shown in FIG. 5, while supporting the opening 82 of the parison 7 with the neck ring 2.

Remove the neck ring 2 and attach the flow head 6 as shown in Figure 6.
The parison is inflated along the finishing die 4 and the bottom 5 by blowing air from the parison.

Finally, open the mold and take out the product.

In the above manufacturing process, the feature of the present invention is in parison molding, as shown in FIG.
The outer surface of the bottom 71 of the parison 7 is conically inwardly recessed by the protrusion 31, and the thickness of the outer circumference is increased by the amount of the recess. That's what I did.

As shown in FIGS. 5 and 6, the parison 7 has a specially shaped bottom 5, that is, a bottom 5 in which the center of the surface in contact with the parison 7 is roundly concave to form a spherical surface 51, and an annular groove 52 is provided on the outer circumferential side. If the mold 4 is attached to the finishing mold 4 and air is blown into the finishing mold 4, even if the meat on the outer periphery of the bottom flows into the annular groove 52 of the bottom, the outer periphery of the bottom has been formed thick in advance, so it will not work like the conventional method. However, since the center of the bottom 5 is concave in a spherical shape, the meat flows along the concavity of the bottom 5.

In the embodiment, a nozzle 61 is attached to the blow head 6, and the nozzle 61 is inserted into the ink by about 15 to 20 feet from the ink opening 82, that is, about 1/3 of the height of the flea. As air was blown into the dust bottom 83, the force of the air jet flow caused the flesh of the dust bottom 83 to more reliably follow the bottom 5, and the inner surface of the dust bottom was curved outward to form the glass trench 8 shown in Figure 1. Ru. Even if the dust bottom 83 is rounded and bulges outward, the flies will not fall over because it has the annular legs 84.

It has been found that the height of the dust produced by the method of the present invention from the top of the dust port to the center of the bottom inner surface is determined with almost no error. This means that when sucking up reagent contents with an automatic dropper device, as long as the bottom dead center position of the dropper tip is accurate, the weighted reagent can be used without any waste. As described above, in the present invention, since the center of the inner surface of the cloudy bottom 83 can be made lower than the outer circumference, the remaining amount of reagent is collected in the center of the bottom, and the last drop can be used with a dropper without wasting it. It has excellent effects, such as the fact that by simply improving the bottom 5, the blow-and-blow type horse mackerel production equipment of the attached tank can be used. It should be noted that the present invention is not limited to the above-mentioned configuration, and it goes without saying that various modifications can be made within the technical scope of the claims.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a crane manufactured by the method of the present invention, FIGS. 2 to 6 are explanatory diagrams of the manufacturing process, FIG. 7 is an enlarged sectional view of the parison inflated by the finishing mold and bottom, and FIG. The figure is a sectional view of a conventional example. 1... Coarse type, 3... Batsuful, 4...
...Finishing type, 5...Bottom. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure C Figure 8

Claims (1)

[Claims] 1 Apply the buttful 3 to the rough mold 1 and blow air to align the gob 70 in the rough mold 1 along the rough mold and the buttful to form a parison 7, and place the parison 7 in the finishing mold 4 closed with the bottom 5. In the method of making a glass bottle 8 having a shape that follows the finished mold 4 and bottom 5 by blowing air from the opening 82 of the parison 7, the surface of the buttful 3 that is in contact with the parison 7 gradually moves toward the center. The bottom of the parison 7 is concave inward at the center, and the outer circumference is thicker than the center. A glass bottle with a recessed groove 52 is used, and the inner surface of the bottle bottom is recessed in the center than the outer periphery, and a short annular leg 84 is protruded from the outer periphery of the bottom in correspondence with the annular groove 52. A method for producing a glass bottle having a concave center on the inner surface of the bottom.