JPS61259903A - Manufacture of closing device for container - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION This invention relates to a method for manufacturing a closure device for containers such as bottles, cartons, boxes, cans, plastic containers and the like.

BACKGROUND OF THE INVENTION The inventor of this invention previously devised and disclosed a bottle closing device. (Igan No. 58-49529) Although not shown in the drawings, the idea is to attach one side of metal foil to the bottle spout, install a groove from the outside of the metal foil on the bottle spout, and then attach the lid to the bottle spout. The other side of the front ・Jll Wi is attached to the circular surface of .

Generally, type 1 is made of synthetic resin and has gas permeability, which is why! 2! This allows air to pass through, and the oxygen in the air causes the contents of the bottle to deteriorate.

The above closing device uses metal foil between the bottle mouth and the lid.
.

:... The cover prevents air from passing through, or t''''1
“″＜, tvc″′＜*14Nt%ml!1!i
, :, It is formed so that it appears.

The problem that the idea aims to solve ′
However, although the above-mentioned bottle closing device is effective as described above, its manufacture relies on manual labor, which naturally improves work efficiency, but the work is troublesome.

The present invention was made to solve such problems, and its purpose is to provide a method for manufacturing a container closure device that is extremely easy and has high manufacturing efficiency.

Means for solving interlocking points This invention will be described with reference to the drawings showing the embodiments.
In Figures 6 to 6, the other side 4 of the metal foil 3 on which the adhesive layer 2 which melts by heat is formed is placed on the - side 1, and the opening 6 and the inner closing side 7 of the container having the outer closing side 5 are placed on the negative side 1. Both opening and closing surfaces 5 of the container closure device 9 comprising the closure member 8 having
7, the closing member 8 is attached to the opening 6 of the container to form a closing device 9, and the closing member 8 is pressurized in the direction of the opening 6 of the container. melting the adhesive layer 2 under pressure;
This is a method of manufacturing a closure device for a container, characterized in that the metal foil 3 is attached to the other of the opening and closing surfaces 5.7.

Operation The other surface 4 of the metal foil 3 formed as described above is attached to either the outer closing surface 5 of the mouth portion 6 of the container or the inner closing surface 7 of the closing member 8. Next, the closing member 8 is attached to the opening 6 of the container, and the closing member 8 and the opening 6 of the container are brought into pressure contact, and then the adhesive layer 2 is melted and the metal foil 3 is attached to the outer closing surface 5 and the opening 6 of the container. It is attached to either the other of the inner closing surfaces 7.

Embodiment As shown in Figure 1, a heat-meltable synthetic resin layer 13 is attached to the other side 4 of a metal foil (for example, an aluminum foil) having a heat-meltable adhesive layer 2 on its negative side. Then, this F4 fake 3 is placed in a manufacturing mold for the closing member 8 (not shown), and molten synthetic resin is injected onto the synthetic resin layer 13 to form the closing member 8. In this way, the closing member 8 to which the gold [3 is attached] as shown in Fig. 2 is obtained.

Note that the above method is an example, and in addition, the other surface 4 of the metal foil 3 may be bonded to the inner closing surface 7 of the closing member 8, which is already made of W, with a layering agent (not shown). Good too. Or, instead of the closing member 80? As shown in FIG. 6, the other surface 4 of the metal foil 3 may be bonded to the outer closing surface 5 of the opening 6 of the container using an adhesive (not shown).

In this case, the synthetic resin M1 on the other surface 4 of the metal foil 3
3 is preferably formed in advance. Soyo 51C
It is easier to attach the layer if it is formed.

Next, as shown in Figure 3, the closing member 8 is attached to the opening 6 of the container. Then, the closing member 8 is pressurized in the direction of the opening 6 of the container at a pressure of 11 Vc, and in this state, high IM wave heating is applied from the outside of the closing member 8.
Heat using i12.

As a result, the metal foil 3 generates heat, and the adhesive layer 2 melts due to the heat, so that the one surface 1 of the metal foil 3 and the opening 6 of the container or the closing member 8 are attached to each other. A closure device for the container as shown in FIG. 4 is formed.

The bottle opening is shown as an example, but this is the opening 6 of a container such as a box, carton, can, etc., as shown in Figure 7.
There is no problem even if it is.

Further, in the above description, the adhesive 2 is melted by a high-intensity wave induction heating device, but an ultrasonic device 14 may also be used as shown in FIG. The device 14 melts the adhesive layer 2 under pressure to form a closure device for the container, as shown in Figure 4.

In Figure 4, 15 indicates an outer lid, 16 indicates a spout, and 17 indicates a threaded portion. The threaded portion 17 may also be an engaging portion. 18 is a tearing member, 19 is an endless fissure groove, and I is a ring. Note that both the closing member 8 and the outer lid 15 are made of synthetic resin.

In the sentence off diagram, 21 indicates 7 lunges.

Effects of the Invention Since the present invention is constructed as described above, it is possible to manufacture a container closing device extremely easily and in a short period of time.

Figures 1 to 6 show examples of the present invention, and Figure 1 is a cross-sectional view of a metal foil used in the method for manufacturing a closure device for containers;
Figure 2 is a sectional view of the closing member showing one step in the manufacturing method for a closure device for containers, Figure 3 is a sectional view of the same manufacturing device showing the next step, and Figure 4 is similar to Figure 3. A cross-sectional view of a closure device for a container formed by the device shown in Fig. 5 is shown in Figs. Figure 4 is a cross-sectional view of the closing member produced by a manufacturing process different from that shown in Figure 4. Figure 6 is a cross-sectional view of the opening of the container produced by the same process. Figure 7 shows an embodiment of the pond of the present invention. Figure 8 shows a further embodiment of the present invention, in which an ultrasonic device is used to manufacture a closing device for a container. FIG.

1...- side 2...Adhesive layer 3...Metal foil 4...other side 5...Outer closing surface 6... Mouth of container 7... Inner closed front 8...Closing member 9...Closing device

Claims (1)

[Claims] The other side (4) of a metal foil (3) on which an adhesive layer (2) that melts by heat is formed on one side (1) is used to seal the opening (6) and the inner closing portion of the container, which has an outer closing surface (5). of a container closure device (9) consisting of a closure member (8) having a surface (7);
The closing member (8) is attached to one of the closing surfaces (5) and (7), and then the closing member (8) is attached to the opening (6) of the container.
) is attached to form a closing device (9), and pressure is applied to the closing member (8) in the direction of the mouth (6) of the container, and in this pressurized state, the adhesive layer (2) is melted. A method for manufacturing a closure device for a container, characterized in that the metal foil (3) is attached to the other of the closure surfaces (5) and (7).