JP3015732B2 - Container manufacturing method and parison molding apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION In the present invention, a liquid fragrance is accommodated in a glass container main body, covered with a lid, and the lid is opened at an appropriate degree, so that the core material inserted into the fragrance container is sucked up. The present invention relates to a method for producing a glass container and a parison molding apparatus used for a so-called perfume atomizer in which a fragrance is diffused into an external atmosphere or, for example, a perfume in a glass container is sucked up by a tube and sprayed. is there.

[0002]

2. Description of the Related Art Fragrances and perfumes are consumables but relatively expensive. For this reason, containers and lid structures of various structures in consideration of effective use of fragrance and perfume and economic efficiency,
An atomizer has been developed and proposed.

Conventionally, as shown in FIG. 5, a glass container main body of a fragrance container for storing a liquid fragrance is formed in an upwardly convex curved shape in which a bottom wall a is high at a center and a circumference is low. . Therefore, when the remaining amount of the liquid fragrance contained in the glass container main body becomes small, the liquid fragrance gathers at the lowest outer peripheral portion g of the bottom wall a. Therefore, if the core material b is inserted so that one end of the core material b faces a part of the outer peripheral portion g, the fragrance contained in the glass container body can be used up to some extent. In addition, glass containers for perfume atomizers are generally vertically long, but the diameter of the tube to be sucked is much smaller than the diameter of the bottom of the glass container, so in this case also, the lower end of the tube is attached to the bottom of the glass container. The perfume is used up to a certain extent by facing the outer peripheral part lower than the center.

[0004]

However, the outer periphery of the bottom of the glass container body for fragrance is wide, and the outer periphery of the bottom of the glass container for perfume is wide with respect to the suction pipe. It is difficult to suck out the entire amount of the fragrance remaining in the wide outer peripheral portion g only by facing the core material b or one end of the pipe. In addition, the core material b or the tube inserted into the glass container main body from the container opening needs to be bent so as to reach the outer peripheral portion g of the bottom wall a of the glass container main body, and it is difficult to adapt to the outer peripheral portion g of the glass container main body. However, the sucking rate of the remaining amount of the fragrance and perfume is reduced due to the poor familiarity. Also, if the container falls over or receives an external force for other reasons, the core material or the tube may be displaced, and the remaining amount may not be able to be completely sucked. Therefore, there is a problem that expensive fragrances, perfumes and the like cannot be sufficiently used.

[0005] The present inventors have devised a glass container which can solve such a problem. In this apparatus, a concave portion formed with a smaller thickness than that of the surrounding portion is provided at a substantially central portion of the inner surface of the bottom wall of the glass container body. As a result, the remaining amount of the fragrance and the like in the glass container body flows into a limited range of the concave portion provided in the bottom wall of the glass container body, and the concave portion is located substantially at the center of the bottom wall and the glass container body It is located just below the mouth, and the core material and the tube passed through the mouth extend just below and one end faces without bending in the recess, and fits well into this recess, and is properly sucked up by being caught by the recess. Since the deflection from the position is prevented, almost all of the remaining amount of the fragrance and the like in the glass container body can be sucked out, so that the expensive fragrance and the like are not sufficiently used and discarded without being completely used up. Can be prevented.

[0006] The concave portion is formed by making the thickness around the bottom wall of the glass container body thinner. In order to form the concave portion, the lower surface of the bottom wall of the glass container body protrudes downward. Since such a portion is not formed, it is possible to avoid such a disadvantage that such a protruding portion is formed and the glass container main body is inferior in stationary property and is difficult to use.

[0007] If the recess is formed to have a size substantially corresponding to the thickness of the core, which absorbs the fragrance and radiates to the outside, the recess further has a size substantially corresponding to the thickness of the core. As a result, the remaining amount of the fragrance and the like flowing into the concave portion can be sucked out without leaving it, so that it can be easily used up.

However, a manufacturing method capable of easily and inexpensively manufacturing such a glass container body has not yet been realized.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a manufacturing method and a parison molding apparatus capable of easily and inexpensively manufacturing a container which can fully use the contained liquid as described above.

[0010]

In order to achieve the above object, a method of manufacturing a container according to the first aspect of the present invention is directed to a method of manufacturing a container, comprising the steps of: The gob is pressed into the mouth mold by pressing a protruding portion corresponding to an upward concave portion to be formed substantially at the center of the bottom wall of the glass container main body with a plunger having a front end surface. At the same time, the outer surface of the bottom wall of the parison is formed flat by the flat surface of the buffer in the rough mold, while the inner surface is formed by the protrusion of the plunger. After forming a concave part whose thickness is smaller than the surrounding part by the protruding part of the plunger at a substantially central part of the inner surface of the bottom wall, the thickness of the concave part is larger than that of the other parts. Preceded other parts by being thin At state, it is characterized in that the molded finish along the inner surface of the mold finishing portions other than the container mouth to blow a parison.

[0011] In such a configuration, the rough mold and the plunger can simultaneously form the concave portion having a smaller thickness than the periphery of the bottom wall of the glass container body without any special operation at the time of normal molding of the parison. By utilizing the fact that this recess is cooled and hardened ahead of other portions due to its thin thickness, after forming a parison, it is blown immediately without a time lag and the process shifts to finish molding by a finishing mold, and the recess is in a hardened state. By performing the finish molding of the other portions as usual while maintaining the shape, the container for the fragrance or the like according to claim 1 can be manufactured without causing a decrease in productivity or an increase in cost.

According to a second aspect of the present invention, there is provided a container parison manufacturing apparatus, comprising: a rough mold including a baffle and a mouth mold; and a gob which enters the rough mold and is supplied between the rough mold and a predetermined shape. A plunger that forms a parison having a container opening, and a plunger that is opposed to a flat surface on the rough mold side that forms the outer surface of the bottom wall of the parison; A protrusion for forming a concave portion is provided in the portion.

[0013] In such a configuration, in the rough mold capable of forming the flat bottom wall outer surface of the parison of the glass container main body, a projection is formed on the tip surface for forming the inner surface having the concave portion of the parison bottom wall. The parison in the method according to the first aspect of the present invention can be formed by a normal parison molding operation in which a plunger is inserted, and if this is subjected to the finish molding according to the first aspect of the present invention, it is sufficient to further improve productivity. .

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A container manufacturing method and a parison molding apparatus according to the present invention will be described below with reference to one representative embodiment.

Although this embodiment is shown only for the case of a fragrance container, as described above, the present invention can be applied to all kinds of liquid containers that draw and consume perfume and other things.
As shown in FIG. 1, the glass container main body 1 has an upward recess 1 c formed at a substantially central portion of the inner surface of the bottom wall 1 a of the glass container main body 1 so as to be thinner than the surrounding portion 1 b. A concave portion 1c is provided almost directly below a container opening 1d provided at the center.
Is located. The height H of the glass container main body 1 including the cylindrical container opening 1d is に 対 し of the outer shape D.
It has a flat shape of about a degree. However, the shape and proportion of such a container are not particularly limited. However, the concave portion 1c is optimally located substantially at the center of the bottom wall 1a as in the present embodiment, and it is preferable that the concave portion 1c and the container port 1d substantially vertically face each other. As the core material 2, any material having various impregnating properties such as felt can be adopted.

That is, the limited recessed portion 1c provided substantially at the center of the inner surface of the bottom wall 1a of the container body 1 is easily provided by the fact that the remaining amount of the fragrance in the container body 1 is close to any surrounding parts. Into the recess 1
c is located substantially under the mouth 1d of the container body 1 at substantially the center, and the core 2 inserted from the mouth 1d is shown in FIG.
The recess 1c extends just below as shown by the imaginary line of FIG.
Since one end faces the inside without bending, it fits well into the concave portion 1c, so that almost all the remaining amount of the fragrance in the container body 1 can be sucked and diffused. Therefore, it is possible to prevent the expensive fragrance from being used and discarded without being exhausted.

Further, since the recess 1c is formed to be thinner than the wall thickness 1b around the bottom wall 1a of the glass container body 1, the bottom wall of the glass container body 1 is formed to form the recess 1c. Since no downward projecting portion is formed on the lower surface of the glass container 1a, it is possible to avoid such a disadvantage that such a projecting portion is formed and the fixing property of the glass container main body 1 is deteriorated to make it difficult to use.

In the present embodiment, the recess 1
As shown in FIG. 1, c is formed to have a diameter D2 having a size substantially corresponding to the thickness D1 of the core 2 for sucking and diverging the fragrance. As a result, since the concave portion 1c has a diameter D2 substantially corresponding to the thickness D1 of the core material 2, the remaining amount of the fragrance flowing into the concave portion 1c can be easily absorbed and diverged, so that the fragrance can be used more easily. .

In this embodiment, to manufacture the glass container body 1 as described above, as shown in FIG. 2, the gob 4 put in the rough mold 3 includes a baffle 5, a mouth mold 6, and the like. Pressing between the rough mold 3 and a plunger 7 having a projection 7a corresponding to an upward recess 1c to be formed on the bottom wall 1a of the glass container main body 1 on a tip end surface 7b. As a result, the gob 4 is pressed into the mouth mold 6 to form the parison 8 having the container opening 1d of a predetermined shape. At the same time as this formation, the outer surface of the bottom wall 1a of the parison 8 is attached to the baffle 5 on the rough mold 3 side. Is formed flat by the flat surface 5a of the bottom wall 1a.
Has a tip surface 7 having a projection 7a of the plunger 7.
b at the substantially central portion of the inner surface of the bottom wall 1a by the protruding portion 7a of the plunger 7.
After forming the concave portion 1c having a smaller thickness than that of the concave portion 1c, the parison 8 is blown as shown in FIGS. Then, a part other than the container opening 1d is finish-formed along the inner surface of the finishing die 9.

As described above, the concave portion 1c having a smaller thickness than the periphery of the bottom wall 1a of the container body 1 is formed by the rough mold 3 and the plunger 7 without any special operation at the time of normal molding of the parison 8. In addition, utilizing the fact that the concave portion 1c is cooled and hardened before the other portion 1b due to its small thickness, the parison 8 is blown immediately without time lag after the parison 8 is formed. Then, the process proceeds to the finish molding by the finish die 9, and while the shape is maintained by the concave portion 1 c being in a hardened state, the finish molding of the other portions except the container port 1 d and the concave portion 1 c is performed as usual, The glass container main body 1 of a container for a fragrance or the like as shown in FIG. 1 can be manufactured without causing a decrease in productivity or an increase in cost.

In this embodiment, the depth of the recess 1c is about 2
The thickness of the other parts except for the concave portion 1c and the container opening 1d is about 6 mm, but is not limited thereto. Further, regardless of the above description of the present embodiment, depending on the shape and size of the container body 1, the finishing mold 9 may be used.
It is a matter of course that it is possible to adopt various molding methods in which the parison 8 is pre-blowed so as to approach the finished shape to a certain extent before the blow finish is performed before the blow finish is performed using the method.

[0022]

According to the first aspect of the present invention, it is possible to manufacture a container such as a condensed fragrance formed at a substantially central portion of the inner surface of the bottom wall with a smaller thickness than the surroundings. By means of the plunger, a concave portion having a smaller thickness than around the bottom wall of the glass container body can be formed at the same time without any special work during normal molding of the parison. Utilizing the cooling and hardening prior to the part, after forming the parison, immediately blow it without a time lag and shift to finish molding with a finishing die, while maintaining the shape by the concave portion being hardened, other By performing finish molding of the portion as usual, the container can be manufactured without causing a decrease in productivity or an increase in cost.

According to the second aspect of the present invention, in the rough mold capable of forming the flat bottom wall outer surface of the parison of the glass container body,
Forming the parison in the method of the invention of claim 1 by a normal parison molding operation by inserting a plunger having a protrusion on the tip end surface to form an inner surface having a recess in the bottom wall of the parison; It is sufficient to provide this to the finish forming of the invention of claim 1, and the productivity is further improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a glass container main body, which is a container of a fragrance to be manufactured in one representative embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a parison forming step in a parison forming apparatus for a glass container main body, which is a container for a fragrance, and a method for manufacturing the glass container main body according to a representative embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a step of finish-molding from the parison of FIG. 2 in a method for manufacturing a glass container body of a container for a fragrance according to one representative embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a state in which the state of FIG.

FIG. 5 is a sectional view showing a conventional fragrance container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 1a Bottom wall 1b Other parts 1c Concave part 2 Core material 3 Coarse type 4 Gob 5 Baffle 6 Port type 7 Plunger 7a Projection part 7b Tip surface 8 Parison 9 Finish type

──────────────────────────────────────────────────続 き Continuation of front page (51) Int.Cl. ⁷ identification code FI C03B 9/335 B65D 83/00 F (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 85/00 B65D 1 / 00-1/02 B65D 83/00 C03B 9/00-9/40

Claims (2)

(57) [Claims] 1. A method according to claim 1, wherein the gob charged in the rough mold corresponds to an upward concave portion to be formed substantially at the center of the bottom wall of the glass container body between the rough mold including a baffle and a mouth mold. By pressing the gob into the mouth mold to form a parison with a container opening of a predetermined shape by pressing the protruding part with a plunger having a tip surface, the outer surface of the bottom wall of the parison is formed at the same time. On the other hand, the buffer is molded flat on the flat surface of the rough mold. On the other hand, the inner surface is formed to match the tip surface having the protrusion of the plunger. After forming a concave part whose thickness is thinner than the surroundings, in a cured state preceding the other part due to the fact that the thickness of this concave part is thinner than the other part, blow the parison and blow the parts other than the container opening Along the inner surface of the finishing mold A method for producing a container, comprising finish molding. 2. A plunger for forming a parison having a container opening of a predetermined shape from a rough mold including a baffle and a mouth mold, and a gob which enters into the rough mold and is supplied between the rough mold and the rough mold. A projection for forming a recess at a substantially central portion of the inner surface of the bottom wall of the glass container main body, at the tip end surface of the plunger facing the flat surface on the rough mold side forming the outer surface of the bottom wall of the parison. A parison molding apparatus for a container, comprising: