JP3706040B2 - Press and blow molding machine for receiver plates and glass products - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a receiver plate on which a mouth mold is placed when a parison is press-molded in a parison molding section of a glass product press-and-blow molding machine, and a glass product press-and-blow molding machine having the receiver plate.
[0002]
[Prior art]
4 is a plan view of a conventional receiver plate 10, FIG. 5 is a sectional view taken along line BB in FIG. 4, and FIG. The conventional receiver plate 10 shown in FIGS. 4 and 5 has a hole 11 through which the plunger passes at the center of the plate-like body. As shown in FIG. 6, the receiver plate is provided on the uppermost part of the housing 20 of a plunger mechanism (not shown) that drives the plunger 23 up and down. When the parison P is formed, the mouth mold 21 is placed on the receiver plate 10, the rough mold 24 is set on the mouth mold 21, and the upper part of the rough mold 24 is baffled after the gob is put into the rough mold 24. 25, the plunger 23 is raised and the parison P is press-molded. Thereafter, the mouth mold 21 moves to the finish molding portion while holding the parison P, the finish mold is set, and a glass product is molded by blow molding.
[0003]
[Problems to be solved by the invention]
Conventionally, at the time of parison press molding, as shown in FIG. 6, the upper part of the mouth mold 21 is fitted to the lower part of the rough mold 24, thereby preventing the joint between the two split molds from opening. However, the opening of the lower part of the mouth mold is not mechanically prevented, and the mouth mold is simply landed on the upper surface of the receiver plate. There was a phenomenon that the lower part of the mold slightly opened, and this sometimes caused a so-called “chatter” defect at the mouth of the glass product.
[0004]
The object of the present invention is to prevent the opening of the mouth mold at the time of parison press molding and to prevent the occurrence of the problem of chattering at the mouth in the molding of glass products by a press and blow molding machine. It is.
[0005]
[Means for Solving the Problems]
The present invention relates to an outer periphery on the surface side of a plate-shaped main body having a hole through which a plunger passes in a central portion in a receiver plate on which a mouth mold is placed when press forming a parison in a parison forming section of a press and blow molding machine for glass products It is a receiver plate characterized in that an upright portion for preventing the opening of the mouth mold is erected on both sides on opposite sides of the opposing line that is substantially perpendicular to the joint line of the mouth mold .
[0006]
An upright portion provided on the outer peripheral portion of the receiver plate abuts on the outer peripheral portion of the mouth mold and prevents the mouth mold from being restrained and opened. In addition, the mouth mold (and coarse mold) is positioned by fitting the mouth mold to the upright portion, and the center of the plunger coincides with the center of the mouth mold and the coarse mold, thereby forming a highly accurate parison. it can.
[0007]
The upright part can be provided over the entire circumference of the outer periphery of the receiver plate, but it is sufficient if it stands upright on both sides of the opposing line that is almost perpendicular to the joint line of the mouth mold. Can be prevented from opening.
[0008]
If an upward tapered surface is formed on the inner surface of the upright portion and a downward tapered surface is formed on the outer peripheral portion of the mouth mold to be fitted with the tapered surface of the upright portion, the lowering and landing on the receiver plate of the mouth shape are performed. Ascending and detaching from the receiver plate is carried out smoothly.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings showing examples. FIG. 1 is a plan view of the receiver plate 1 of the embodiment, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is an explanatory view of a parison forming portion of the press-and-blow glass forming machine of the embodiment having the receiver plate 1. is there.
[0010]
As shown in FIG. 1, the receiver plate 1 has a planar shape in which the left and right sides of the disk are cut out, has a hole 4 through which a plunger passes in the center, and a shallow groove 5 that engages with a mouth mold is formed on the upper surface. Yes. The mouth mold 21 is placed on the receiver plate 1, and the upright portion 2 is located on opposite sides of the outer periphery of the receiver plate 1 on the opposing line Y perpendicular to the mesh line X of the mouth mold. Is erected. The inner surface of the upright portion 2 is an upward tapered surface 3.
[0011]
As shown in FIG. 3, the mouth mold 21 of a press-and-blow glass molding machine using the receiver plate 1 has a tapered surface 26 cut out corresponding to the tapered surface 3 of the upright portion 2 of the receiver plate 1. The mouth mold 21 includes a guide ring 22, and the outer periphery of the guide ring 22 is also a part of the tapered surface 26.
[0012]
As shown in FIG. 3, the receiver plate 1 is fixed on a housing 20 of a plunger mechanism (not shown) that drives the plunger 23 up and down. At the time of parison molding, the mouth mold 21 descends on the receiver plate 1 and lands. At this time, the taper surface 3 of the upright portion 2 of the receiver plate 1 is guided to the taper surface 26 formed at the lower peripheral portion of the mouth mold 2 and positioned at a predetermined position, and the mouth mold 21 is positioned between the upright portions 2. The joint is restrained by being fitted to, and the joint is prevented from opening. A rough die 24 is set on the mouth die 21. After the gob is put into the rough die 24, the upper portion of the rough die 24 is closed with a baffle 25, the plunger 23 is raised, and the parison P is press-molded. . Thereafter, the mouth mold 21 moves away from the receiver plate 1 while holding the parison P and moves to the finish forming portion. At this time, the mouth mold 21 can be smoothly detached from the receiver plate 1 by the action of the tapered surfaces 3 and 26. . In the finish molding section, the finish mold is set on the mouth mold 21 holding the parison P, and a glass product is molded by blow molding.
[0013]
【The invention's effect】
The receiver plate of the present invention and the press-and-blow glass molding machine equipped with the receiver plate prevent the opening of the mouth mold at the time of parison molding, so that it is possible to prevent the so-called misalignment of the mouth of the glass product. In addition, since the plunger and the center of the mouth mold and the rough mold can be matched, a parison with high accuracy can be formed.
[Brief description of the drawings]
FIG. 1 is a plan view of a receiver plate 1 of an embodiment.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is an explanatory diagram of a parison molding unit of a press-and-blow glass molding machine according to an embodiment.
4 is a plan view of a conventional receiver plate 10. FIG.
5 is a cross-sectional view taken along line BB in FIG.
6 is an explanatory diagram of a usage state of the receiver plate 10. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Receiver plate 2 Upright part 3 Tapered surface 4 Hole 5 Shallow groove 10 Receiver plate 11 Hole 20 Housing 21 Mouth type 22 Guide ring 23 Plunger 24 Rough type 25 Baffle 26 Tapered surface X Joint line Y Opposite line P Parison

Claims (3)

In the receiver plate on which the mouth mold is placed when the parison is press-molded by the parison molding section of the press and blow molding machine for glass products, the mouth is formed on the outer peripheral portion on the surface side of the plate-shaped main body having a hole through which the plunger passes in the center. A receiver plate characterized by standing uprights that prevent the mold from opening on both sides of an opposing line that is substantially perpendicular to the joint line of the mouth mold. 2. The receiver plate according to claim 1 , wherein an upward tapered surface is formed on an inner surface of the upright portion. A glass product press and having a receiver plate according to claim 2 and a mouth mold having a tapered surface formed on an outer peripheral portion thereof to be fitted with the tapered surface of the raised portion when placed on the receiver plate. Blow molding machine

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