KR20120107748A

KR20120107748A - Molding device of mold vessel and molding method of mold vessel

Info

Publication number: KR20120107748A
Application number: KR1020110025458A
Authority: KR
Inventors: 고길성
Original assignee: 고길성
Priority date: 2011-03-22
Filing date: 2011-03-22
Publication date: 2012-10-04

Abstract

The present invention, the first molding mold 10, the first molding portion 11 is formed on the inner surface; A second molding mold (20) having a second molding portion (21) formed on an inner surface corresponding to the first molding mold (10) to be symmetrical with the first molding portion (11); A first core (30) formed at a lower side of the first molding mold (10) to form a scrap at the bottom of the first molding portion (11); A second core 40 positioned at a lower side of the second molding die 20 to form a scrap under the second molding part 21; The first core 30 is further composed of a first push guide 31 for pushing the first core 30 toward the second molding mold 20, the second core 40 A second slide guide 41 for pushing the second core 40 toward the first molding mold 10 is further configured.
The first and second jungle guides 31 and 41 are not limited, but the first core 30 and the second core 40 are pushed toward the thermoplastic resin 101 and the container is formed. In order to facilitate the return to the original position after it may be configured as a hydraulic or pneumatic cylinder, in addition, it may be made of a spring that is elongated and contracted.
The molding container molding method of the present invention is a thermoplastic resin toward the inner surface side of the first molding mold 10 having the first molding part 11 formed therein and the second molding mold 20 having the second molding part 21 formed therein. A thermoplastic resin input step (S1) of introducing water 101; When the thermoplastic resin 101 is introduced by the thermoplastic resin input step S1, the first core 30 and the second core respectively formed under the first molding mold 10 and the second molding mold 20, respectively. A core moving step (S2) wherein 40 are respectively moved to the thermoplastic resin 101 side; The scrap 102 is formed under the first molding part 11 of the first molding mold 10 and the second molding part 21 of the second molding mold 20 by the core moving step S2. Scrap forming step (S3); After the first core 30 and the second core 40 are moved toward the thermoplastic resin 101 by the core moving step S2, the scrap 102 is formed, and the first molding mold 10 and the second core 40 are formed. A molding mold moving step (S4) in which a molding mold 20 moves to the thermoplastic resin 101 side, respectively; The thermoplastic resin 101 is moved by the first molding part 11 of the first molding mold 10 and the second molding part 21 of the second molding mold 20 by the step of moving the molding mold. The container molding step (S5) is formed into a container is made.
The present invention relates to a container in which a thermoplastic resin container is formed by symmetrically placing a first molding mold having a first molding part and a second molding mold having a second molding part contacted with each other. In the molding process, since the first container and the second core are first contacted with the first core and the second core, the molding container is molded in a state in which the scrap is formed, so that the thickness of the scrap may be thinner. The thickness of the lower side of the molding container to be molded is formed to be thick to minimize the defect of the molding container, as well as to reduce the waste of the raw material by forming a thin thickness of the scrap can be economical effect.

Description

MOLDING DEVICE OF MOLD VESSEL AND MOLDING METHOD OF MOLD VESSEL}

The present invention relates to a molding container molding apparatus and a molding container molding method, and more particularly, when the container is formed using a molding mold, two scrap cores pressurizing the scrap part of the molding are first moved to press the lower part of the molding. By forming the container by the molding part by moving the molding part of the molding die, the lower part of the molding container can be thickened, thereby greatly improving the durability of the molding container, and thinly forming the scrap extracted from the molding container. The present invention relates to a molding container forming apparatus and a molding container molding method for minimizing the occurrence of defects of the molding container as the scrap is formed thinner and the lower thickness of the molding container becomes thicker.

In general, a method of molding a container by using a thermoplastic resin is a method of removing a molded container by filling the mold with the molded part in which the shape of the container to be formed is filled with a thermoplastic resin using an extruder, and then separating the molding apparatus. The container is molded, and a variety of them are produced in the molding apparatus.

Such a molding apparatus includes a molding mold processed into a shape of a container to be molded, and a molding mold formed at one side of the molding portion and having an injection portion into which a molding material is introduced into the molding portion by introducing a molding nozzle of an extruder (not shown). And, it is composed of two pawl type fixed by a plurality of fixing pins on both side ends of the molding mold and inserted into the inner side of the ball spring.

Therefore, as the molding material is injected through the molding nozzle of the extruder into the injection unit formed on one side of the molding unit, the same molding as the shape of the molding unit is mass produced.

At this time, the molding, that is, the lower end of the container, the squeeze of the molding material, that is, the scrap (scrap) is generated, the problem that the production line of the container does not run smoothly by the operation of removing the scrap. .

In other words, as people scrap and remove the scraps by hand one by one, a lot of time is consumed and scratches are generated in the mass produced container in the process of separating the scraps from the container, thereby increasing the defective rate of the container.

Moreover, there is also a problem that the production cost is increased by the labor cost of the worker by the post-processing process to remove scraps one by one.

Accordingly, molding apparatuses for automatically extracting scraps have been used. As an example, a container and a scrap extracting apparatus, which is Utility Model Application No. 1991-9297, have been devised.

As can be seen from the claims of the published publication, a plurality of molds are formed at equal intervals on a molding rotational disk which is rotated at a constant speed by a driving means, and molding materials are introduced into the mold from the molding nozzle of the extruder. An apparatus for extracting a container from which a container shaped to an opposite position of the extruder is extracted, the apparatus comprising: a rotary buoy having a gripper at a tip between the metal molds fixedly movable to the molding rotating disc by a mold bracket, and the rotary buoy. And a scrap extracting device each having a vertical fixed buoy capable of rotating the device, and having a swivel with a plurality of grippers flowing by a link and a third cylinder for driving the grippers in a portion where the container is extracted. I am doing it.

Accordingly, it is possible to reduce the deterioration of the container generated by pulling the container and scrap, which have been cured by human hand, manually by hand.

However, conventionally used molding apparatuses have a problem in that a lower portion of the molded container is thinly formed by moving the molding mold and the core formed with the molding part together, thereby causing a lot of defects in the lower part of the container.

That is, the conventional molding apparatus is composed of two molding molds each formed on the inner surface of the molding parts of the symmetrical shape to face each other, and two cores formed in the lower portion of the two molding molds to extract the scrap of the molding container When the container is formed by using a molding apparatus, two molding molds and two cores move together to contact each other to form a molding container so that the thermoplastic resin located at the lower side of the molding part has a lot of two cores. Since draw-in, the thickness of the lower side of the molding container becomes thin, so that not only the defect of the molding container is caused, but also a large amount of resin is introduced into the core side, so that the thickness of the scrap is thickened and the scrap by the core is formed. There is a problem that extraction is not made smoothly.

Therefore, in order to thicken the lower portion of the molding container, a larger amount of thermoplastic resin must be introduced into the molding mold, thereby increasing the use of raw materials, thereby resulting in an economic burden.

As a molding method of the prior art, a method of forming a heat-resistant container and a molding mold have been devised, which is a patent registration No. 10-0184322, which is a primary blow molding process and a primary molded product for forming a preform into a container-shaped primary molded product. And a final blow molding step of forming the heat-treated primary molded product into a final container shape, and raising the bottom part of the primary molded product in the primary blow molding process. The bottom portion is formed, and the raised bottom portion is formed into a shape that is substantially unchanged from the raised bottom of the final container, in which case the preform is complex but sufficient to obtain heat resistance because it has sufficient heat retention to cope with molding as a complex mold. The shape of the raised bottom can be molded without difficulty, and then the shape of the raised bottom of the primary molded product is If one with the rounded bottom of the mold and to perform the heat treatment and final blow-molding.

However, this conventional technology also has the same problem as mentioned above as the molding die and the core is moved together to form a molding container.

The present invention has been made to solve the problems with the molding method of the conventional molding apparatus and the molding container, the molding apparatus has two molding molds having molding parts in which the same shape is formed symmetrically with each other, and the lower side of these two molding molds It consists of two cores, which are positioned at, but the two cores are first contacted at the time of molding the molding container, and then the two molding molds are brought into contact with each other so that the scrap is first formed by the two cores, It is an object of the present invention to provide a molding container forming apparatus and a molding container molding method in which the thickness of the lower portion of the molding container to be molded is kept thick and the thickness of the scrap is formed thin.

Molding vessel molding apparatus of the present invention as a means for achieving the above object, the first molding die and the first molding formed on the inner surface; A second molding mold having a second molding portion formed in a shape symmetrical with the first molding portion on an inner surface corresponding to the first molding mold; A first core positioned at a lower side of the first molding mold and extracting scrap of a molding container formed by the first molding part; A second core positioned at a lower side of the second molding mold and extracting scrap of the molding container formed by the second molding part; The first core further comprises a first slide guide for pushing the first core toward the second molding mold side, the second core for pushing the second core toward the first molding mold side The guide is made up more.

In addition, the molding container molding method of the present invention, the thermoplastic resin input step of injecting a thermoplastic resin to the inner surface side of the first molding mold and the second molding die formed on the inner surface of the first molding die formed; A core moving step of moving the first and second cores respectively formed under the first molding mold and the second molding mold to the thermoplastic resin side when the thermoplastic resin is introduced by the thermoplastic resin injecting step; A scrap forming step of forming a scrap under the first molding part of the first molding mold and the second molding part of the second molding mold by the core moving step; Moving the first core and the second core to the thermoplastic resin side by the core moving step, and then moving the first molding mold and the second molding mold to the thermoplastic resin side, respectively, after forming a scrap; The molding mold moving step includes a container molding step in which the thermoplastic resin is molded into the container by the first molding part of the first molding mold and the second molding part of the second molding mold.

The present invention relates to a container in which a thermoplastic resin container is formed by symmetrically placing a first molding mold in which a first molding part is formed and a second molding mold in which a second molding part is formed so that the first molding mold and the second molding mold contact each other. In the molding process, since the first container and the second core are first contacted with the first core and the second core, the molding container is molded in a state in which the scrap is formed, so that the thickness of the scrap may be thinner. The thickness of the lower side of the molding container to be molded is formed to be thick to minimize the defect of the molding container, as well as to reduce the waste of the raw material by forming a thin thickness of the scrap can be economical effect.

1 is a front configuration diagram showing that the thermoplastic resin of the present invention molding container molding apparatus and molding container molding method is introduced.
Figure 2 is a plan view showing that the thermoplastic resin of the molding container molding apparatus and the molding container molding method of the present invention is injected.
Figure 3 is a front configuration diagram showing that the core of the present invention molding container molding apparatus and the molding container molding method is in contact with the thermoplastic resin to form a scrap.
Figure 4 is a planar configuration showing that the core of the molding container molding apparatus and the molding container molding method of the present invention is in contact with the thermoplastic resin to form a scrap.
5 is a front configuration diagram showing that the molding die of the present invention molding container molding apparatus and the molding container forming method is in contact with the thermoplastic resin is molded in the molding container.
Figure 6 is a plan view showing that the molding die of the molding container molding apparatus and the molding container molding method of the present invention is in contact with the thermoplastic resin is molded in the molding container.
Figure 7 is a process chart showing the process of the present invention molding container molding method.

Hereinafter, the structure and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, the term or word used in the present specification and claims is based on the principle that the inventor can appropriately define the concept of the term in order to best describe the invention of his or her own. It should be interpreted as meanings and concepts corresponding to the technical idea of

As shown in the present invention, the molding container forming apparatus includes a first molding mold 10 having a first molding part 11 formed therein, and an inner surface corresponding to the first molding mold 10. A second molding die 20 having a second molding portion 21 formed in a symmetrical shape with respect to (11), and positioned at a lower side of the first molding mold 10, The first core 30 to form a scrap in the lower portion, and the second core 40 is formed on the lower side of the second molding die 20 to form a scrap in the lower portion of the second molding portion 21 It consists of.

In addition, the first core 30 is further provided with a first slide guide 31 for pushing the first core 30 toward the second molding die 20, the second core 40 is the first The second pressing guide 41 for pushing the second core 40 toward the first molding mold 10 is further configured.

In the molding container forming apparatus of the present invention configured as described above, the first core 30 and the second core 40 are respectively formed by the first pressing guide 31 and the second pressing guide 41. And before the second molding mold 20 is moved to the thermoplastic resin side to form a scrap first.

The molding container molding apparatus of the present invention is to mold the container by the molding container molding method of the present invention, the molding container molding method of the present invention, the first molding mold 10 and the first molding portion 11 is formed on the inner surface; In the thermoplastic resin input step (S1) and the thermoplastic resin input step (S1) to inject the thermoplastic resin 101 to the inner surface side of the second molding mold 20, the second molding portion 21 is formed on the inner surface When the thermoplastic resin 101 is introduced, the first core 30 and the second core 40 respectively formed under the first molding mold 10 and the second molding mold 20 are the thermoplastic resin 101. The second movement of the first molding part 11 and the second molding mold 20 of the first molding mold 10 by the core moving step (S2) and the core moving step (S2) respectively moved to the side). The first core 30 and the second core 40 are formed by the scrap forming step S3, in which the scrap 102 is formed below the part 21, and the core moving step S2. After moving to the plastic resin 101 side and forming a scrap 102, the first mold 10 and the second molding mold 20 is moved to the thermoplastic resin 101, respectively (S4) ), And the thermoplastic resin 101 is moved to the first molding part 11 of the first molding mold 10 and the second molding part 21 of the second molding mold 20 by the molding mold moving step (S5). It consists of a container molding step (S5) that is molded into a container by).

The present invention configured as described above solves the problems caused by the molding apparatus for molding a conventional molding container, the molding mold and the core is moved together so that the container and the scrap are molded together.

In other words, in the present invention, when the thermoplastic resin 101 is introduced into the inner surfaces of the first molding mold 10 and the second molding mold 20, the first molding mold 10 is formed by the core moving step S2. ) And the second molding mold 20 are not moved, and only the first core 30 and the second core 40 are moved to the thermoplastic resin 101 side, respectively, so that the first core 30 and the second core 40 are moved. ), The scrap 102 is first molded.

Next, the first molding mold 10 and the second molding mold 20 are moved to the thermoplastic resin 101 side by the molding mold moving step (S4), so that the first molding mold 10 may be moved. The thermoplastic resin is molded into a container by the molding part 11 and the second molding part 21 of the second molding mold 20.

Therefore, by forming a lower thickness of the lower portion of the container to be molded, the defect rate caused by thinly forming the lower portion of the molding container may be minimized, and the thickness of the scrap 102 may be reduced, thereby reducing unnecessary waste of raw materials.

As described above, the present invention has been described with reference to a preferred embodiment of the present invention as being capable of various modifications, but the present invention is not limited to such an embodiment, and the embodiment is simply applied in combination with the known art. Together with the claims and the detailed description of the present invention it will be seen that the technology that can be used by those skilled in the art that the present invention belongs to be included in the technical scope of the present invention.

10: first molding mold 11: first molding part
20: second molding mold 21: second molding part
30: first core 31: first jungle guide
40: second core 41: second jungle guide
101: thermoplastic resin 102: scrap
S1: thermoplastic resin input step
S2: Core moving step
S3: Scrap Forming Step
S4: molding mold moving step
S5: Container forming step

Claims

In the molding apparatus for molding a container by adding a thermoplastic resin,
A first molding mold 10 having a first molding part 11 formed on an inner surface thereof;
A second molding mold (20) having a second molding portion (21) formed on an inner surface corresponding to the first molding mold (10) to be symmetrical with the first molding portion (11);
A first core (30) formed at a lower side of the first molding mold (10) to form a scrap at the bottom of the first molding portion (11);
A second core 40 positioned at a lower side of the second molding die 20 to form a scrap under the second molding part 21;
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The first core 30 is further configured to first slide guide 31 for pushing the first core 30 toward the second molding mold 20,
Molding container forming apparatus, characterized in that the second core 40 is further composed of a second slide guide 41 for pushing the second core 40 toward the first molding mold (10) side.

In the molding method for molding a container from a thermoplastic resin,
Thermoplastic resin which injects the thermoplastic resin 101 into the inner surface side of the 1st molding mold 10 in which the 1st molding part 11 was formed in the inner surface, and the 2nd molding mold 20 in which the 2nd molding part 21 was formed in the inner surface. Resin water input step (S1);
When the thermoplastic resin 101 is introduced by the thermoplastic resin input step S1, the first core 30 and the second core respectively formed under the first molding mold 10 and the second molding mold 20, respectively. A core moving step (S2) wherein 40 are respectively moved to the thermoplastic resin 101 side;
The scrap 102 is formed under the first molding part 11 of the first molding mold 10 and the second molding part 21 of the second molding mold 20 by the core moving step S2. Scrap forming step (S3);
After the first core 30 and the second core 40 are moved toward the thermoplastic resin 101 by the core moving step S2, the scrap 102 is formed, and the first molding mold 10 and the second core 40 are formed. A molding mold moving step (S4) in which a molding mold 20 moves to the thermoplastic resin 101 side, respectively;
The thermoplastic resin 101 is moved by the first molding part 11 of the first molding mold 10 and the second molding part 21 of the second molding mold 20 by the step of moving the molding mold. Molding container molding method characterized in that it comprises a container molding step (S5) to be molded into a container.