KR20220021053A - Equipment for manufacturing molded products for combining straws - Google Patents

Abstract

Disclosed is a manufacturing device of a straw holder molded article. According to an embodiment, the manufacturing device comprises: a lower mold in which a jig groove is formed concavely on an upper surface; an upper mold coupled to an upper part of the lower mold and having a molding groove formed on a bottom surface; a plurality of first and second inner molds detachably coupled to the jig groove of the lower mold; a driving unit closely adhering to or separating first and second inner molds from each other; and an opening hole in which a ring-shaped molding groove is dug and formed from a side surface to an inner side, and which is through the ring-shaped molding groove formed on an upper surface, wherein the first and second inner molds have opposite sides being in contact with or spaced apart from each other. Therefore, a resin is injected into the ring-shaped molding groove and molded to form a cylindrical ring body injection product.

Description

Equipment for manufacturing molded products for combining straws

The disclosed subject matter relates to an apparatus for manufacturing a molded product for straw holder, and more particularly, to an apparatus for manufacturing a molded product for straw holder that makes it easier to take out a molded product such as a band after molding it.

Unless otherwise indicated herein, the material described in this section is not prior art to the claims of this application, and inclusion in this section is not an admission that it is prior art.

Drinking straws for infants are cylindrical in shape and are made of soft, harmless materials.

It is also necessary to properly adjust the depth at which the straw is inserted into the container.

In this case, the insertion depth of the straw can be adjusted by coupling the stopper made of a band to the outer surface of the straw and then moving the position of the stopper.

Such a stopper is usually a cylindrical molded product, and a character that children like may be formed on the outer surface.

Conventionally, cylindrical molded articles made of soft materials such as silicone have a problem in that they are torn or deformed in the process of taking out after injection from a mold.

Conventional molding molds consist of upper and lower molds, but even if the mold is separated, the cylindrical part has a disadvantage in that it is difficult to separate it while maintaining the original shape.

Korean Patent Application No. 10-1990-0017958 discloses 'a device for separating a mold for a cylindrical molded product'.

An object of the present disclosure is to provide an apparatus for manufacturing a molded product in a straw holder that is convenient for molding a cylindrical molded article such as a circular band fitted to the outer surface of a straw and facilitates taking out the molded article.

The object of the embodiment, the lower mold with a jig groove concavely formed on the upper surface; a plurality of first and second inner molds coupled to the upper part of the lower mold and detachably coupled to the jig groove of the lower mold, including; a driving unit for closely adhering or separating the first and second inner molds; In the first and second inner molds, opposite side surfaces are contacted or spaced apart from each other, and a ring-shaped molding groove is dug from the side to the inside, and an opening communicating with the ring-shaped molding groove is formed on the upper surface. The resin is injected and molded to form a cylindrical injection molded article, which can be achieved by an apparatus for manufacturing a molded product.

For the purpose of the embodiment, a rail groove is formed on a bottom surface of each of the first and second inner molds, and a rail coupled to the rail groove is formed in the jig groove of the lower mold.

An object of the embodiment is that the driving unit includes a guide rod that is penetrated to both ends of each of the first and second inner molds, and a power source that moves the guide rod horizontally to cause the first and second inner molds to be closely adhered or spaced apart.

An object of the embodiment is to inject a resin into the periphery of the opening hole, and to form a character part formed on the outer surface of the cylindrical injection product;

According to the disclosed embodiment, the molding operation of a cylindrical molded article such as a circular band fitted to the outer surface of the straw is convenient, and the extraction of the molded article is facilitated, thereby increasing production efficiency.

1 is a perspective view showing an apparatus for manufacturing a straw holder molded article according to an embodiment;
Figure 2 is an exploded perspective view showing an apparatus for manufacturing a straw holder molded article according to an embodiment;
3 is an exploded perspective view showing the 'first and second inner molds' of the manufacturing apparatus of the straw holder molded article according to the embodiment;
Figure 4 is an enlarged perspective view of the 'first inner mold' of the manufacturing apparatus of the straw holder molded article according to the embodiment;
5 is a cross-sectional view showing the operation of 'first and second inner molds' of the apparatus for manufacturing a straw holder molded article according to the embodiment;
Figure 6 is a perspective view showing an example of use of the molded article coupled to the straw according to the embodiment.

Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings.

The embodiments to be described below are intended to describe in detail enough to be easily implemented by a person of ordinary skill in the art to which the present invention pertains, thereby limiting the technical spirit and scope of the present invention. doesn't mean

In addition, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation, and the terms specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. It should be noted that definitions of these terms should be made based on the content throughout this specification.

Among the accompanying drawings, FIG. 1 is a perspective view showing an apparatus for manufacturing a straw holder molded product according to an embodiment, FIG. 2 is an exploded perspective view showing an apparatus for manufacturing a straw holder molded product, and FIG. 3 is a 'first, 2 is an exploded perspective view showing the 'inner mold', FIG. 4 is an enlarged perspective view of the 'first inner mold' of the apparatus for manufacturing a straw holder molded product, and FIG. 5 is a perspective view showing an example of use of a molded product coupled to a straw.

1 to 5, the apparatus for manufacturing a straw holder molded article according to the embodiment includes a lower mold 100 having a jig groove 120 concavely formed on the upper surface, and a lower mold 100 on the upper part of the mold 100. It is coupled, and includes an upper mold 200 in which a molding groove 220 is formed on the bottom surface.

and a plurality of first and second inner molds 320 and 340 detachably coupled to the jig groove 120 of the lower mold 100 .

The first and second inner molds 320 and 340 may be configured in close contact with several such as two or three, and in the description of this embodiment, two will be described as an example.

The first and second inner molds 320 and 340 have opposite sides contacting or spaced apart from each other, and a ring-shaped molding groove 220 is dug from the side to the inside, and the upper surface of the ring-shaped molding groove 220 communicates with each other. An opening 520 is formed.

In a state in which the upper and lower molds 100 and 200 are combined, the molten resin is injected into the ring-shaped molding groove 220 through the opening 520 and molded to form a cylindrical straw holder injection product 600 .

The straw holder injection product 600 is made of a cylindrical shape, and is formed to have a diameter size sufficient to be fitted to the outer surface of the straw P, and characters in various shapes on the outer surface of the straw holder injection product 600 A portion 640 is formed.

For example, the character unit 640 is formed in a shape that children like by figuring out a cartoon character.

In order to form the shape of the character part 640 , the upper surfaces of the first and second inner molds 320 and 340 and the forming groove 220 of the upper mold 200 corresponding thereto are formed to have a character shape.

A resin is injected around the opening hole 520 of the first and second inner molds 320 and 340 , and a first molding part 540 to form a character part 640 formed on the upper portion of the ring body 620 ; is formed by the formation of a concavity.

The ring body 620 may be formed by injecting a resin into the ring-shaped molding groove 220 and then curing the resin.

The character part 640 may be formed by a shape formed in the molding groove 220 of the first molding part 540 and the upper mold 200 thereon.

3 and 4, each of the first and second inner molds 320 and 340 has a rail groove 360 formed on the bottom thereof.

A rail 140 coupled to the rail groove 360 is formed in the jig groove 120 of the lower mold 100 to correspond to the rail groove 360 . The rail 140 is formed parallel to both sides in the longitudinal direction, and guides the operation in which the first and second inner molds 320 and 340 are spaced apart or in close contact with each other.

Preferably, a driving unit is included to perform a spaced apart or close contact operation between the first and second inner molds 320 and 340 .

The driving unit includes a guide rod 700 that is through-coupled to both ends of the first and second inner molds 320 and 340,

and a power source (not shown) for causing the first and second inner molds 320 and 340 to adhere or space apart by horizontally moving the guide rod 700 .

The power source may be a motor or an electric device such as a hydraulic or pneumatic cylinder.

Of course, the opening and closing operation may be operated by moving the guide rod 700 by human force instead of the power source.

The operation of the embodiment configured in this way will be described.

First, the upper mold 200 is separated from the lower mold 100 .

Thereafter, a pair of first and second inner molds 320 and 340 are coupled to each of the jig grooves 120 formed in a plurality of the lower mold 100 .

Each of the first and second inner molds 320 and 340 are coupled to the guide rod 700 , respectively.

After seating the plate-shaped resin material in the jig groove 120 , the upper mold 200 is closed to be combined with the lower mold 100 , and then mounted on a heating press machine (not shown).

Then, the resin material is melted by heating and filled in the ring-shaped molding groove 500 and the first molding part 540 and the molding groove 220 of the upper mold 200 through the opening hole 520, and then by pressing. It is molded for a certain period of time while being pressurized.

After opening the upper mold 200 , a plurality of pairs of first and second inner molds 320 and 340 are taken out from the lower mold 100 .

5, when the first and second inner molds 320 and 340 are separated by pushing the guide rod 700 to separate them, a part of the straw holder injection product 600 is exposed, so by grabbing this part by hand and taking it out. It is possible to obtain a completed straw holder injection product (600).

Although described with reference to the preferred embodiment, it will be readily recognized by those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the appended claims. is self-evident

100: lower mold 120: jig groove
140: rail 200: prize mold
220: molding groove 320: first inner mold
340: second inner mold 500; ring shaped groove
520: opening hole 540: first forming part
600: straw holder injection product 640: character part
700: guide rod

Claims (4)

a lower mold in which a jig groove is formed concavely on the upper surface;
and an upper mold coupled to the upper part of the lower mold and having a molding groove formed on the bottom thereof;
a plurality of first and second inner molds detachably coupled to the jig grooves of the lower mold;
a driving unit for closely adhering or separating the first and second inner molds;
In the first and second inner molds, opposite side surfaces are in contact with or spaced apart from each other,
A ring-shaped molding groove is dug from the side to the inside, and an open hole communicating with the ring-shaped molding groove is formed on the upper surface,
A manufacturing apparatus for a molded straw holder, characterized in that the resin is injected into the ring-shaped molding groove and molded to form a cylindrical injection product. The method of claim 1,
Each of the first and second inner molds has a rail groove formed on its bottom surface,
An apparatus for manufacturing a straw holder molded article, characterized in that a rail coupled to the rail groove is formed in the jig groove of the lower mold. The method of claim 1,
the driving unit
a guide rod that is coupled through both ends of each of the first and second inner molds;
a power source that horizontally moves the guide rod to cause close contact or separation of the first and second inner molds;
A manufacturing apparatus for a straw holder molded article comprising a. The method of claim 1,
and a first molding part in which a resin is injected around the opening hole and forming a character part formed on the outer surface of the cylindrical injection product.

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