JPH11300760A - Molding method for plastic molding having indication such as character, mark or the like and mold used therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To settle the matter by replacing some part of an engraved part leaving the main body part of a molding as it is by a method wherein a molding is executed by employing the mold consisting of its main body part and its engraved part, which is detachably fitted to a notched part provided at the proper portion of the main body part and on the inner surface of which characters, marks or the like are engraved. SOLUTION: A notched part 3 is provided at the proper portion in the main body part 2 of a mold 1. An engraved part 4 detachably fits to the notched part 3. In addition, the engraved part 4 has the same thickness and curvature as those of the fitted portion of the main body part 2. The inner surface of the engraved part 4 is a surface 4a engraved with characters, marks or the like. The characters, marks or the like are engraved on the surface 4a engraved of the engraved part 4 under its dismounted state. The engraved part 4 is fitted to the notched part 3 of the main body part 2. When the production of other moldings is intended by changing only the portion of the characters, marks or the like after the production of a predetermined number of moldings with the mold 1, the changing of the dismounted engraved part 4 for a new engraved part, on which other charactersm marks or the like are engraved, is enough.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for molding a plastic molded article having characters, marks and the like, and a mold used for the method.

[0002]

2. Description of the Related Art For example, when making a plastic molded product such as a flowerpot 101 shown in FIG. 3 which is distributed to a customer as a so-called promotional product, a company name, a store name 102, etc. are displayed on the surface of the molded product.

[0003] However, in the case of a molded product indicating a company name, a store name, or the like as described above, a small number of units such as several hundreds is expensive. That is because the mold cost is expensive.

[0004] In such a mold of a molded product, characters are engraved on the inner surface at the time of production, so that only one having the same company name and store name can be made from one mold.

[0005] In other words, if one mold is used to create a different company name or shop name, the characters of the carved company name or shop name must be changed, which is extremely difficult in practice. After all, if you try to make another company name, store name,
I have to make the whole thing again.

[0006] Under such circumstances, even if it is known that the effect of distributing promotional products is great, it is necessary to give up in terms of cost. On the other hand, for plastic molding companies, this is a huge negative in terms of profit. For this reason, it has been desired to develop a means for inexpensively producing a plastic molded product having characters or marks such as a company name or a store name on the surface.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in consideration of the above-mentioned problems, and is intended to provide a low-cost plastic molding product having a surface on which characters, marks, and the like are displayed. An object of the present invention is to provide a method of molding a product and a mold used for the method.

[0008]

According to the present invention, there is provided a method for molding a plastic molded article, comprising: a step of removably fitting a main body portion to a notch provided in an appropriate portion of the main body portion; Is formed by using a mold composed of an engraved portion serving as an engraved surface of characters, marks, and the like, and is molded using the mold.

In the plastic molding die according to the present invention, the inner surface is formed into an engraved surface such as a character or a mark, which is removably fitted into a main body portion and a notch provided in an appropriate portion of the main body portion. And a sculptured part.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view of a plastic molding die according to the present invention, and FIG.

In FIG. 1, reference numeral 1 denotes a mold. Reference numeral 2 denotes a main body of the mold 1, and a notch 3 is provided at an appropriate portion.

Reference numeral 4 denotes an engraving portion which is detachably fitted into the cutout portion 3. The engraved portion 4 has the same thickness and curvature as the portion where the main body 2 is fitted. The inner surface of the engraving section 4 is an engraved surface 4a for characters, marks and the like.

The engraving section 4 is provided with bolts 5 and 5 at both ends. On the other hand, on the outside of the cutout 3 in the main body 2, female screws 6, 6 with which the bolts 5, 5 are screwed are provided.

In this embodiment, characters, marks, and the like are engraved on the engraving surface 4a of the engraving unit 4 in a state where the engraving unit 4 is removed. Then, the engraved portion 4 having been engraved is fitted into the cutout 3 of the main body 2. In addition, the holding of the fitting state is performed by the bolt 5,
Perform with 5.

Further, when a predetermined number is manufactured using the mold 1 and another one is manufactured by changing only characters, marks, etc., the engraving part 4 is removed and another character,
What is necessary is just to replace the engraving part which engraved the mark etc.

Further, the method for molding a plastic molded article according to the present invention uses the above-mentioned mold 1 and molds it.

[0017]

According to the method and the mold of the present invention, when making the same shape but different characters, marks and the like,
It is only necessary to replace part of the engraving part without changing the mold body. Therefore, it is not necessary to recreate the entire mold, and the molded article can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a plastic molding die according to the present invention.

FIG. 2 is a cross-sectional view showing a plastic molding die according to the present invention with a part thereof omitted.

FIG. 3 shows an example of a plastic molded product.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mold 2 Mold main body 3 Notch 4 Engraved part 4a Engraved surface 5, 5 bolt 6, 6 Female screw

Claims (3)

[Claims] 1. A mold comprising a main body portion and an engraved portion having an inner surface provided with an engraved surface such as a character or a mark, which is removably fitted into a notch provided in an appropriate portion of the main body portion. A method of molding a plastic molded article having a display of characters, marks, and the like, wherein the molding is performed using the mold. 2. A main body part and an engraving part having an inner surface serving as an engraving surface such as a character or a mark, which is removably fitted into a notch provided in an appropriate part of the main body part. And a plastic mold. 3. The plastic molding die according to claim 2, wherein a bolt is screwed into both ends of the engraved portion, and a female screw with which the bolt is screwed is provided outside the notch in the main body.