JP3300091B2 - Spout mounting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for attaching a spout to a paper container for sealingly filling various liquids including beverages such as juices and alcoholic beverages.

[0002]

2. Description of the Related Art Conventionally, when a spout is attached to a paper container of this type, the spouts produced one by one are attached to holes of the paper container by a mounting device attached to a filling device.

[0003]

However, in the conventional mounting method, since the spouts are supplied in a state of being separated one by one, the spout is required to be arranged in the mounting device associated with the filling device. Therefore, there has been a problem that the entire apparatus is expensive and the manufacturing cost is high.

[0004] The present invention has been made in view of the above problems, and an object of the present invention is to provide a spout mounting method capable of reducing the manufacturing cost of a paper container with a spout. It is in.

[0005]

In order to achieve the above object, a spout mounting method according to the present invention is to leave a flange on an outer peripheral portion.
The flat spout with the hinge lid
The outer periphery of the mounting Note forms an outlet continuous body formed by a continuous manner on the strip of metal foil at the outer surface, in the filling step, the hinge lid
Metal foil with a shape slightly outside and protruding pull tabs
By punching , the spouts are cut out of the spout continuum one by one together with the metal foil , and the spouts are
And is attached to the paper container by welding .

[0006] The above spout continuum can be formed by continuously forming the spout by injection molding on a strip-shaped metal foil, or a cast product formed on a strip-shaped metal foil. The outlet can also be formed by continuous fixing .

[0007]

In the spout mounting method having the above-mentioned structure, the spouts are individually cut off from the spout continuum supplied in the form of a strip in the filling step and mounted on the paper container.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

First, as shown in FIG. 1, a strip-shaped metal foil 1 made of aluminum foil is intermittently fed from a winding 2 and supplied to an injection molding machine 3, and a resin 4 (polyethylene) is supplied to the injection molding machine 3. Then, the injection port 5 is continuously formed on the metal foil 1 in the injection molding machine 3 to form a continuous port 6 as shown in FIGS. Then, the spout continuous body 6 is conveyed to a filling step in a wound state. In this case, a reel may be used to wind up the continuum 6.

The spout 5 has a flat shape as a whole, and a rectangular short side in a plan view has a mountain-like side, and a hinge lid 5b is thinned while leaving a welding flange 5a on the outer periphery. 5c. In addition, this collar 5
a and a marginal edge 5 with a slight step between
d is provided. The spout 5 is welded to the outer surface of the hinge lid 5b and is integrated with the metal foil 1.

Next, in the filling step, the spout continuum 6 is sent out and intermittently moved at the pitch of the spout 5 during the assembly of the paper container by the filling machine. Then, as shown in FIG. 4 and FIG. 5, while the continuum 6 is intermittently fed in the direction of the arrow A, the pedestal 7 of the split type is inserted between the flange 5 a of the spout 5 and the metal foil 1. Metal foil 1 by punching blade 8 in the state
Punch out. In this case, as shown in FIG. 4, the metal foil 1 is punched in a shape a in which a pull tab 9a protrudes slightly from the outer periphery of the hinge lid 5b at the tip of the mountain shape. As a result, as shown in FIG.
Is formed. In addition, holes b corresponding to the shape a are formed in the metal foil 1 after the punching as shown in FIG.

Next, the pull tab 9a of the foil piece 9 attached to the spout 5 is folded back above the hinge lid 5b so as not to be in the way, and the spout 5 is placed in the paper container C with the pull tab 9a folded. By inserting from the inside of the spout mounting hole and heat-sealing the flange 5a, FIG.
The spout 5 is attached to the paper container C as shown in FIG. The above-described punching step and mounting step are performed in a state where suction is performed from behind the spout 5 by soccer.

The spout 5 attached to the paper container C as described above is opened by pulling the pull tab 9a when drinking. That is, since the foil piece 9 is welded to the outer surface of the hinge lid 5b of the spout 5, when the pull tab 9a is raised and pulled, the hinge lid 5b is broken at the thin portion 5c from the top end of the mountain shape, and It will be opened with the opposite side as a hinge. When this is pressed to close the hinge lid 5b, the peripheral portion of the foil piece 9 is not caught and falls down, and burrs generated by separating the thin portion 5c interfere with each other and are locked. . Therefore, the hinge lid 5b once opened can be resealed.

FIGS. 8 and 9 show other examples of the spout. The spout 10 has substantially the same external shape as the spout 5 described above, but its hinge lid 10a has a linear thin portion 1
0b and a cut line 10c connecting both ends thereof, and the cut line 10c is formed only at the tip of the mountain shape in an inclined state as shown in FIG. Also in this spout 10, since the metal foil is attached so as to cover the entire outer surface of the hinge lid 10a, the cut line 10c is opened before opening.
The liquid does not overflow from the container. Then, by pulling the pull tab in the same manner as described above, the hinge lid 10a is opened in the direction of the arrow in FIG. 9 using the thin portion 10b as a hinge, and the hinge lid 10a is pressed in the closing direction. It can be reclosed without being caught and falling, and locked at the tip of the mountain shape.

When attaching the spout 5 to the paper container C, a flange 5a may be attached to the outside of the spout mounting hole of the paper container C. As an attachment means, for example, an adhesive may be used instead of the heat fusion.

In the above embodiment, the spout continuum 6
Is wound once on a reel or the like, and is conveyed to the filling machine and fed out. However, the injection molding machine 3 may be directly joined to the main body of the filling machine and the spout 5 may be attached inline.

In forming the continuous spout 6, a molded product of the spout is prepared in advance, and is supplied onto a strip-shaped metal foil to be continuously attached by heat fusion or an adhesive. You can also do so.

[0018]

As described above, according to the spout mounting method of the present invention, the hinge lid is partitioned while leaving the flange on the outer periphery.
To form a flat spout the spout continuous body formed by attaching a continuous manner on the outer surface of the hinge lid on the strip of the metal foil, in the filling step, slightly outside a and flop than the outer circumference of the hinge-lid
By punching out metal foil in a shape with a protrusion
Since the spouts are cut from the spout continuum one by one together with the metal foil , and the spouts are welded and attached to the paper container at the flanges, the spouts are individually molded. Since the means for arranging the spout required when using the spout can be omitted, the manufacturing cost of the paper container with the spout can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a step of continuously forming a spout on a strip-shaped metal foil.

FIG. 2 is a side view of a spout continuum.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a schematic view showing a state where a spout is separated from a spout continuum.

FIG. 5 is a sectional view taken along line XX of FIG. 5;

FIG. 6 is a plan view showing a separated spout.

FIG. 7 is a view showing a paper container to which a spout is attached.

FIG. 8 is a plan view showing another example of the spout when viewed from the back side.

FIG. 9 is a sectional view taken along line YY of FIG.

[Explanation of symbols]

 1 Metal foil 5 Spout 6 Spout continuum 10 Spout C Paper container

Claims (3)

(57) [Claims] 1. A hinge lid is defined by leaving a flange on an outer peripheral portion.
The forming a flat spout the spout continuous body formed by attaching a continuous manner on the outer surface of the hinge lid on strip metal foil,
In the filling step, slightly outside the outer periphery of the hinge lid and
By punching metal foil with a shape with a pull tab
Then , the spouts are cut off one by one from the spout continuum together with the metal foil , and then the spouts are welded to the paper container with a flange.
Spout mounting method characterized by attaching Te. 2. A spout continuum of claim 1, wherein the der <br/> Rukoto those shapes formed by continuously forming the spout by injection molding on a belt-like metal foil Note outlet mounting only way. 3. A spout continuum, spout attachment according to claim 1, wherein the der Rukoto obtained by forming a spout is molded product on the strip of metal foil by continuously sticking Method. "