JPS5938119B2 - Manufacturing method for spherical molding with decorative plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a spherical molding obtained by caroing a long molding material in which striped plate pieces are expanded radially around the core portion.

Spherical moldings are often used to decorate Christmas trees and other items.

This spherical molding is obtained by processing a long molding material in which striped plate pieces are developed radially around the core.

The well-known spherical molding has a suspension string attached to a core wire wound around the center of the molding, and the color, light reflection, and movement of the thin strips that unfold into a spherical shape are usually controlled by the spherical shape. It brings about a decorative effect.

However, since the conventional spherical molding itself has the same non-directional shape, the decorative effect of the spherical molding does not change much depending on the viewing position.

In addition, this kind of decorations are usually used in relatively large numbers when decorating, and are generally used for short-term decorations during the Christmas season, so they are not time-consuming and can be mass-produced. One of the essential requirements is that it can be provided at low cost to ordinary households.

by the way. In addition to increasing the decorative effect, incorporating other decorative members into the spherical mold during the manufacturing process increases the number of man-hours (particularly labor-intensive work).

This causes a rise in manufacturing costs.

Therefore, even though the decorative member attachment opening is made of formic acid, many simple spherical moldings are still being produced and used.

The present invention was invented in view of the above points, and adopts a simple method in the manufacturing process of one spherical mold to add a sieve plate.
We devised a method for manufacturing a spherical molding with high decorative effects that is almost the same in cost as conventional spherical moldings.

Hereinafter, two embodiments of the present invention will be described in detail with reference to the drawings.

A thin metal sheet such as aluminum or a thin sheet of plastic, which has been surface polished and has a high gloss finish, is fed from a roll to a rotary cutter, and a slit is cut in the width direction, leaving an uncut part in the center. Immediately after this, the core wire is supplied to the uncut portion from both sides and twisted to create a long molding material with strips spread out radially around the core wire portion using a well-known method, and this material is cut into a predetermined length. Cut to obtain cut molding material A□.

Next, the thin strips 1 of this cut molding material A□ are distributed on both sides of the core wire 2 and bent in one direction from the root to form a flat molding material A2.

Next, at the end of this flat molding material A2, the core wire 2 is pinched and rolled into a coil shape.

This winding work is performed in two steps from both ends of the core wire toward the center, and the flat molded block A3 is divided into two parts.
shall be.

Here, 2 pieces of decorative block B formed in a star shape etc. prepared in advance
It is fitted into the core wire portion 2 that connects the two flat molding blocks A3.

The decorative plate B can be made of the same type of material as the molding material or a different type of material.
A slit 4 is formed that reaches the center hole 3 from the outer edge, and the core wire portion 2 is inserted into the center hole 3 through this slit 4.

Next, the molding block core wire portion 2 rolled up on both sides of the decorative plate B is pressed against the center hole of the decorative plate B, and the strip plate piece 1 is shaped so as to develop into a spherical molding A4. and
Attach a hanging cord C as necessary to complete the product.

As described above, according to the present invention, by sandwiching the decorative plate within one spherical molding, the strips of the spherical molding are divided into two on both sides of the decorative plate depending on the viewing position, and are unfolded from the center of the joint plate. It is much more beautiful than conventional non-directional spherical moldings, which have the same shape. Yes, again.

In terms of the manufacturing process, the pre-formed decorative plate is inserted just before the final shaping, so there is no complexity in handling, and the labor cost is almost the same as that of conventional spherical moldings, making it cheaper. It is excellent in terms of aesthetics and economy.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a front view of a cut molding material, FIG. 2 is a front view of a flat molding material obtained by bending strip strips, and FIG. 3 is a winding of the flat molding material. Fig. 4a is a perspective view showing the state of operation. b is a perspective view showing how to sandwich the decorative plate between two flat molding blocks that have been wound, and FIG. 5 is a perspective view of the completed product. DESCRIPTION OF SYMBOLS 1...Strip plate piece, 2...Mall block core wire portion, 3...Center hole, 4...Slit,
A: Mall material, B: Decorative plate, C:
...hanging string.

Claims (1)

[Claims] 1. A thin strip plate made of metal, plastic, or other material that has been treated with surface coloring is rolled out, and a slit is cut in the width direction using a single-rotation cutter, leaving an uncut part in the center. Immediately after that, the core wire is cut on both sides of the uncut part. The material is fed from the side and twisted to create a molding material in which strips of strips expand radially around the core wire.This material is cut to a predetermined length, and the strips of the cut molding material are twisted against the core wire. Fold it in one direction from both sides and flatten it, pinch the core wire from both ends of the flat molding material, wrap it up to the middle of the material, and roll it up by 2%.
A sieve plate f [1] formed in advance into a star shape or the like is attached to the core line connecting the two flat mall rings, and then the sieve plate is pressed from both sides by the core line part of the flat mall ring.
and a method for manufacturing a spherical molding with knotted plates, characterized in that the strips are shaped so as to develop into a spherical shape.