JP2000033648A - Cylindrical film coating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable mounting of a film only by merely externally fitting the film by externally fitting an annular film to the body part of a container from a part held to an expanded annular shape by outer and inner pawls and expanding the outer pawls at the predetermined position of the body part and pulling off the inner pawls from the interior of the annular film. SOLUTION: Expanding inner pawls 5, 5 expanding an annular film 2 toward the underside of a suction holding means in an expanding direction from the inside of the film 2 and diameter contraction outer pawls 6, 6 holding the annular film from the outside along with the inner pawls are provided. The annular film 2 is expanded in diameter at the lower part thereof by a pair of the outer pawls 6, 6 and a pair of the inner pawls 5, 5 to be held to an annular shape and, from this part, the annular film 2 is externally fitted to the body part of a container 7. The annular film 2 is forcibly pulled while stretched in the vicinity of the upper edge thereof to reach the predetermined position of the body part. Herein, the outer pawls 6, 6 are expanded and the inner pawls 5, 5 are pulled off from the interior of the annular film 2. The film is firmly held to the body part of the container 7 in a wrinkle free state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tubular film covering apparatus for extrapolating and covering a film on a body of a bottle container or the like in a ring shape.

[0002]

2. Description of the Related Art Taking a plastic bottle as an example, a method of displaying a pattern or a character on a body portion is to directly print on a skin,
Techniques for attaching a label, covering a shrink film to give a sense of quality, and extrapolating and covering an annular film as the object of the present invention are known.

[0003]

As an apparatus for coating an annular film as the object of the present invention, a long tubular film is provided with perforations at predetermined intervals, and is pulled and cut when necessary. Then, an apparatus for extrapolating and covering a bottle is known. However, in Japan, consumers are sensitive enough that the appearance of the product determines the sales, and this device, which shows a perforated state, has not been widely used. Although the use of shrink film has the drawback of requiring heating and cooling steps, this method, which still has excellent appearance, has been often employed. The present inventor has studied the provision of a device that enables a film to be mounted simply by extrapolating, and that enables a packaging state that gives a high-quality appearance to consumers.

[0004]

SUMMARY OF THE INVENTION The present inventor has disclosed a cutter for cutting a long cylindrical film into a predetermined length of an annular film as a structure for coating by utilizing the slight elasticity of the annular film. A suction holding means for holding the annular film from both sides when cutting by the cutter, an expanding inner claw for supporting the annular film opened annularly by the suction holding means in the expanding direction from the inside, and the annular film from the outside. A diameter-reduced outer claw sandwiched together with the inner claw, the diameter of the ring-shaped film is set to be equal to or less than the diameter of the container body, and the ring-shaped film is extended to the container body from a portion which is annularly expanded by the outer claw and the inner claw. The outer claws are spread at a predetermined position of the body, and the inner claws are pulled out of the annular film. By making the contact surface with the film on the inner side of the outer claw a large sliding resistance and making the contact surface with the film on the outer side of the inner claw a small sliding resistance, a reliable extrapolation and covering action can be obtained.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure and coating operation of a tubular film coating apparatus according to the present invention will be described in detail with reference to FIGS. FIG. 1 is a perspective view showing a state of a cutter for cutting a long cylindrical film wound by a roll into an annular film having a predetermined length. FIG. 2 is a perspective view showing a state in which the film that has been separated from and adhered to the suction holding means is opened. FIG. 3 is a perspective view showing a state in which the lower portion of the annular film opened by the suction holding means is arranged between the inner pawl and the outer pawl.
FIG. 4 is a perspective view showing a state in which the suction holding unit is retracted from the state shown in FIG. FIG. 5 is a perspective view showing a state where the lower portion of the annular film is gripped by the expanding inner nail and the outer diameter reducing nail so that the lower part of the annular film can be inserted into the container. FIG. 6 is a perspective view showing a state in which the annular film is externally inserted into the container from below by the expanding inner nail and the reduced-diameter outer nail. FIG. 7 is a perspective view showing a state in which the annular film is externally inserted into the body of the container by the expanding inner nail and the reduced-diameter outer nail. FIG. 8 is a perspective view showing a state in which the expanded inner nail and the reduced-diameter outer nail are retracted and the annular film is completely inserted into the body of the container.

As shown in FIG. 1, the apparatus according to the present invention includes cutters 3 for cutting a long cylindrical film 1 rolled into a roll into an annular film 2 having a predetermined length. Suction cups are arranged on both sides of the annular film 2 as suction holding means 4, 4 for holding the annular film 2 from both sides during cutting by the cutters 3, 3. As shown in FIG.
When the film is moved by the cylinder in the direction in which the film is separated, the film that has been in close contact opens in a ring shape. Under the suction holding means 4,4, as shown in FIG.3, FIG.4, the expanding inner claws 5,5 which open and support the annular film 2 in the expanding direction from the inside (see FIG.
(b) shown in FIG. 4 and outer diameter-reduced outer claws 6, 6 for holding the annular film together with the inner claws from outside (details are shown in FIG. 4 (c)).

The inner diameter of the annular film 2 is smaller than the diameter of the body of the container 7. As shown in FIG. 5, the lower portion of the annular film 2 is annularly expanded and held by the pair of outer claws 6, 6 and the inner claws 5, 5, and from this portion, the annular film 2 is formed as shown in FIG.
Is extrapolated to the body of the container 7. The vicinity of the upper edge of the annular film 2 is forcibly pulled while extending and reaches a predetermined position of the body. Here, the outer claws 6, 6 are expanded as shown in FIG. 7, and the inner claws 5, 5 are pulled out from the inside of the annular film 2 as shown in FIG. The stretched film returns to the original diameter and is firmly held on the body of the container 7 without wrinkles. A heat-shrinkable film may be used if necessary.

In order to prevent the annular film 2 from coming off when it is inserted into the body of the container 7, the contact surfaces of the outer claws 6, 6 with the film inside are roughened so as to increase the sliding resistance.
Further, in order to make it easy to remove the inner claws 5, 5 from the inside of the annular film 2 after coating, the film 2 outside the inner claws 5, 5 is removed.
The contact surface with the surface is made smooth to reduce slip resistance.

[0009]

According to the present invention, a decorative band having high commercial value can be provided on the surface of the body of a bottle or the like even if a normal long cylindrical film is used without the need for a shrink film. . By simply extrapolating the film, it is possible to provide a packaging state that gives a sense of quality to the consumer's eyes, which is in a state of tension and a sense of unity with the container.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state of a cutter for cutting a long cylindrical film wound by a roll into an annular film having a predetermined length.

FIG. 2 is a perspective view showing a state in which a film in which a suction holding unit separates and adheres opens.

FIG. 3 is a perspective view showing a state in which the lower portion of the annular film opened by the suction holding means is arranged between the inner pawl and the outer pawl;

FIG. 4 is a perspective view showing a state in which the suction holding unit is retracted from the state shown in FIG. 3;

FIG. 5 is a perspective view showing a state in which the lower portion of the annular film is gripped by the expanding inner nail and the reduced-diameter outer nail so that the lower part of the annular film can be inserted into the container.

FIG. 6 is a perspective view showing a state in which the annular film is externally inserted into the container from below by means of an expanding inner nail and a reduced diameter outer nail.

FIG. 7 is a perspective view showing a state in which the annular film is externally inserted into the body of the container by the expanding inner nail and the reduced diameter outer nail.

FIG. 8 is a perspective view showing a state in which the expanding inner nail and the reduced-diameter outer nail are retracted and the annular film is completely inserted into the body of the container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Long cylindrical film 2 Annular film 3 Cutter 4 Suction holding means 5 Expanding inner claw 6 Reducing outer claw 7 Container

[Procedure amendment]

[Submission date] December 10, 1998 (1998.12.
10)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 5

FIG. 6

FIG. 7

FIG. 4

FIG. 8

Claims (2)

[Claims] 1. A cutter for cutting a long cylindrical film into an annular film of a predetermined length, suction holding means for holding the annular film from both sides when cutting by the cutter, and an annular film which is opened in an annular shape by the suction holding means. An inner nail that supports the expanding film from the inside in the expanding direction, and a reduced outer nail that clamps the annular film together with the inner nail from the outside. The diameter of the annular film is equal to or less than the diameter of the container body. The annular film is externally inserted into the container body from the portion whose diameter is expanded and held annularly by the claw, the outer claw is spread at a predetermined position of the body, and the inner claw is removed from the inside of the annular film. Cylindrical film coating device. 2. The tubular film coating apparatus according to claim 1, wherein the contact surface with the film inside the outer claw has a large sliding resistance and the contact surface with the film outside the inner claw has a small sliding resistance.