JPH0720023Y2 - Rotatable deformable bottle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improved deformable bottle that can be directly rotationally printed on an outer peripheral wall surface.

[Prior Art] In recent years, various kinds of alcoholic beverages, soft drinks, and the like have been put on the market in a wide variety of bottles and containers.

Some of these bottles have labels attached, while others have printed directly on the bottles.

The method of printing directly on the bottle includes a plane printing method and a rotary printing method.

The flat surface printing method is a method used for printing the outer peripheral wall surface of a rectangular bottle or the like, and a screen is placed on a flat surface as a printing surface (printing surface), and a desired shape is passed through the screen by a squeegee rubber. The ink is applied to the printed surface and then baked.

The rotary printing method is a method used for printing a cylindrical or conical object such as an ordinary round bottle, and the screen is moved at the same speed as the speed of the outer peripheral wall surface of the rotating bottle to move the bottle. At the position where the outer peripheral wall and the screen were in contact, the squeegee rubber passed through the screen into the desired shape,
Ink is attached to the printed surface and baked.

In the flat printing method, it is necessary to put a screen on the bottle while fixing the flat surface of the bottle, and it is difficult to increase the speed, whereas in the rotary printing method, while rotating the bottle, Since ink is attached, the speed can be easily increased.

[Problems to be solved by the device]

As described above, in a cylindrical or conical round bottle, the surface of the bottle that rotates with respect to the screen surface is at a fixed position and can be printed by the rotary printing method. Bottles other than mold bottles (hereinafter referred to as modified bottles) have an outer peripheral wall surface formed in a shape other than cylindrical or conical,
When the center axis of the bottle is fixed (supported) and rotated, the printing surface moves up and down relative to the screen surface, and even if the slack due to the pressing of the squeegee rubber on the screen surface during printing is used, the rotary printing method There was a problem that it was difficult to adopt.

The present invention has been made for the purpose of solving the above-mentioned conventional problems and providing a deformed bottle capable of printing the outer peripheral wall surface at a high speed by a rotary printing method.

[Means for Solving the Problems]

In a modified bottle having a printing convex surface forming a printing surface on a part of the outer peripheral wall surface, the printing convex surface is a distance from the bottle central axis to the maximum diameter portion, and a distance from the bottle central axis to the minimum diameter portion. The difference between the above is formed so as to be within a displacement amount within 10% of the distance of the maximum diameter portion, and the bottle bottom portion is provided with a cylindrical portion having a concave portion or a convex portion for positioning the convex surface for printing. .

[Action]

When the deformed bottle is rotated around the bottle center axis, the loci at the maximum diameter portion and the minimum diameter portion of the convex surface for printing do not match and move up and down, but since the displacement is within 10% of the maximum rotation locus, The flexure of the printing screen surface caused by pressing with the squeegee rubber is absorbed and mechanical high speed printing is applied. Provide a cylindrical portion on the bottom of the deformation bottle, and
The side wall is provided with a concave portion or convex portion for mechanically detecting and positioning the convex surface for printing to stop rotation, so that the rotation trajectory is not constant in the deformed bottle shape without the cylindrical portion at the bottom. It is possible to solve the problem that the print start position cannot be regulated mechanically.

〔Example〕

 Next, the present invention will be described with reference to FIGS.

Reference numeral 1 is a modified bottle of the present invention, and the modified bottle 1 comprises a bottle mouth portion 3 and a body portion 2.

Cross section of the outer peripheral wall surface of the barrel 2, the opposite ends of the major axis P ₁ side as shown in FIG. 4 was formed on the flat surface with the notch substantially at right angles to the long axis P ₁ ellipse Is formed into a shape,
The elliptical arcuate surfaces facing each other on the minor axis P ₂ side are convex surfaces 5, 5 for printing, and the flat surface facing each other on the major axis P ₁ side is a non-printing surface (non-printing surface). The surface) is 6,6.

A cylindrical portion 4 having a concave portion (dimple) 7 for positioning the convex surfaces 5, 5 for the first and second printing surfaces is provided at the lower end portion of the body portion 2.

The first and second convex surfaces 5 and 5 for printing have a distance L ₁ from the bottle central axis C to the convex end as the maximum diameter portion and a distance L from the bottle central axis C to the convex surface center as the minimum diameter portion. Difference of ₂ L ₃ (L ₁ −L ₂ )
However, it is formed so that the displacement amount is within 10% of the distance L ₁ from the bottle central axis C to the maximum diameter portion.

The modified bottle of the embodiment has the above-described configuration. Therefore,
If the concave portion 7 provided in the cylindrical portion 4 at the lower end of the body portion 2 is detected and the positions of the convex surfaces 5 and 5 for the first and second printing are positioned and then the deformation bottle is rotated to perform printing, The printing is surely performed on the convex surfaces 5, 5 for the first and second printing without causing the positional deviation.

The convex surfaces 5 and 5 for printing the first and second prints are preferably formed into an arc-shaped surface that forms a part of a cylindrical surface or a conical surface centered on the bottle center axis. The surface may have a deformation amount equal to or less than a predetermined value.

The deformation amount equal to or less than the predetermined value is a displacement amount that does not hinder the application of the rotary printing method. That is, it means a difference within 10% of the locus of the maximum rotation point and the minimum rotation point of the bottle convex surface on the printing convex surface within the range where the deflection of the printing screen surface can be absorbed.

The screens used in the rotary printing process have a certain amount of deflection allowance.

Therefore, the displacement amount of the convex surfaces 5, 5 for the first and second printing is compensated within the range of the deflection allowable amount of the screen.

Incidentally, the convex surface for printing is usually provided on the bottle body, but the convex surface for printing can also be applied to a conical portion provided from the shoulder portion to the neck of the bottle, and also for a bottle having a conical body portion. used.

Further, the present invention is applied not only to a deformed bottle in which a convex surface for printing and a non-printed surface face each other, but also to a deformed bottle having a non-printed surface in which a part of a cross section is cut out.

[Effect of device]

 The modified bottle of the present invention has the following effects.

(1) When the deformed bottle is rotated around the bottle center axis, the printing surface moves up and down without the trajectory of the maximum diameter portion of the convex surface for printing and the trajectory of the minimum diameter portion of the convex surface rising and falling, but the displacement is maximum. Since it is within 10% of the rotation locus, it is absorbed by the bending of the printing screen surface caused by being pressed by the squeegee rubber, and mechanical high-speed rotation printing is applied.

(2) By providing a cylindrical portion having a concave portion or a convex portion for mechanically detecting and positioning the convex surface for printing to stop rotation at the bottle bottom portion of the deformed bottle, a rotation path for the deformed bottle shape. It is possible to perform rotational printing in the same manner as a normal round bottle or the like by solving the problem that the print start position cannot be regulated by mechanically detecting it because V is not constant.

[Brief description of drawings]

1 is a perspective view of a modified bottle of the present invention, FIG. 2 is a side view of the same,
FIG. 3 is a bottom view of the same, and FIG. 4 is a sectional view of an essential part. 1 ... Deformation bottle, 2 ... Body part, 3 ... Bottle mouth part, 4 ... Cylindrical part, 5 ... Printing convex surface, 6 ... No printing surface, 7 ... Positioning concave part.

Claims (1)

[Scope of utility model registration request] 1. A deformed bottle having a printing convex surface which forms a printing surface on a part of an outer peripheral wall surface, wherein the printing convex surface has a distance from a bottle central axis to a maximum diameter portion and a maximum distance from the bottle central axis. The difference in the distance to the small diameter part is formed so that the displacement amount is within 10% of the distance of the maximum diameter part, and at the bottom of the bottle, a concave part or a convex part for positioning the convex surface for printing. A deformable bottle that can be printed and rotated by a machine, characterized in that it is provided with a cylindrical portion having.