WO2018182056A1

WO2018182056A1 - Device for molding pet container having large inlet, and pet container

Info

Publication number: WO2018182056A1
Application number: PCT/KR2017/003303
Authority: WO
Inventors: 김홍렬
Original assignee: 김홍렬
Priority date: 2017-03-28
Filing date: 2017-03-28
Publication date: 2018-10-04

Abstract

The present invention relates to a device for molding a PET container having a large inlet, and a PET container, and the device for molding a PET container having a large inlet comprises: left and right molds, which mold the external shape of a PET container while being separated and moved to both sides thereof so as to enable the PET container to be molded, have guide holes having sleeve guides, and have preforms, positioned at the lower parts thereof, for molding an open portion of the PET container; a lower mold coupled to the upper parts of the left and right molds and molding the lower part of the PET container; and the sleeve guides, which are coupled with the left and right molds and have guide channels formed therein so as to be matched with the guide holes, and in which hydraulic cylinders having cores formed at end portions thereof move along the guide channels and mold handles of the PET container. In addition, the present invention provides a PET container comprising: an open portion, which has a screw thread formed on the upper outer circumferential surface thereof, and is open so as to communicate with the inside; handles, which have reinforcing ribs formed in various shapes along the outer circumferential surface and improving the rigidity of the PET container, and have groove portions concavely formed by the cores; and a cap fastened to the open portion so as to seal the PET container, and having a gas discharge hole for discharging gas formed inside the PET container.

Description

PET container forming equipment and PET container

The present invention relates to a PET container forming apparatus and a PET container for large ball. More specifically, it has a shape recessed on both sides at a position eccentrically outward with respect to a large container for a large-area PET container having a large entrance, and the user can wrap it with one hand to maintain a minute gap between facing the recessed portion. Provides a large-capacity PET container forming apparatus capable of molding a rigid handle, and at the same time to form a rigid rib that maximizes the rigidity of the PET container, a separate gas outlet and balanced outlet is formed, the lid for sealing the inlet of the PET container The present invention relates to a PET container forming apparatus and a PET container comprising a.

In general, PET containers are made of polyethylene as a raw material, and are easy to produce and handle, and are widely used to store or transport liquid contents because they are light and unbreakable.

These PET containers are largely pressure vessels (containers containing contents such as bottled water), pressure-resistant containers (containers containing contents containing carbonic acid), heat-resistant containers (containers containing contents such as juice) and heat-resistant bottles (juice and carbonated together). Container containing the contained contents), and the like.

Such a PET container can be produced in various ways depending on the capacity of the contents contained in the container, often used by the user for drinking and drinking PET container can be carried with one hand, there is no separate handle and the like.

However, depending on where the contents are used, the capacity of the PET container varies. For example, a bottle of water used at home or at a company is typically 18.9 L.

Therefore, in order to put the bottle in the cold or hot water or water purifier that we use, it is not only heavy enough to be handled by an adult man, but even an adult man has a very uncomfortable handling because no handle is provided on the outside of the bottle.

In addition, large-scale items such as beverages and laundry detergents sold in large supermarkets are sold in PET containers of 1.5-5 L. This PET container can hold 1.5 ~ 5ℓ of capacity. There is no difficulty in carrying the adult male by lifting it with both hands. However, if you want to carry it with one hand, there is no inconvenience in handling and carrying it unless a separate handle is provided. .

Therefore, it is common that a handle is provided in the PET container which can hold a capacity of 1.5 L or more for convenient handling and transportation of the PET container. The handle provided in the PET container capable of holding a capacity of 1.5ℓ or more as described above has a structure that is mounted on the PET container after being manufactured separately from the PET container.

In the case of a handle having a structure that is mounted on the PET container after such a separate production, a separate assembly process for mounting the handle on the PET container is required, which not only reduces productivity but also increases production costs due to additional production.

In addition, the handle having a structure that is mounted on the PET container after the separate production is easily damaged by a large load due to its structure, so the contents of the PET container broken due to the breakage of the PET container caused by the handle being broken during the handling and transportation of the PET container containing the contents. Has the problem of polluting the surroundings with economic losses.

Therefore, in order to solve such a problem, the present inventors have developed and applied for Korean Patent Registration Nos. 10-0418290 and 10-0479685.

The above-described patent application has a core is installed in the inner center of the mold, the PET container is stretched and recessed in accordance with the movement of the core is formed a handle that is symmetrical around the PET container.

The handle formed as described above forms handles of PET containers such as bottled water bottles having relatively large diameters, as shown in FIGS. 1 and 2, since the handles 10 are formed recessed on opposite sides of the PET container 100, respectively. Suitable for

The handle formed in FIGS. 1 and 2 has a handle 10 formed in a shape recessed in the front and the rear of the PET container 100 in accordance with the central axis, so that the user lifts the PET container 100. Since both hands of each hold the handle 10 formed on both sides of the PET container 100, it is suitable for a large-capacity PET container of more than 5ℓ taking the form that the user embraces the PET container 100.

However, in the case of the prior application patent, there is a problem that a separate molding process must be made in order to improve the rigidity of the container.

In order to solve such a problem, the present invention has been made by the background art described above, and the air inside the container smoothly forms a handle when the core installed in the mold moves toward the inside of the container to form a depression of the container. It is an object of the present invention to provide a PET container forming apparatus and a PET container for a large diameter ball that does not reduce the internal pressure of the container forming the handle portion by allowing the flow to the portion does not decrease.

In addition, the present invention provides a PET container forming apparatus that can be formed at the same time to form a rigid rib to maximize the rigidity of the PET container, a separate gas outlet and balanced outlet is formed, the lid for sealing the inlet of the PET container It is an object to provide a PET container forming apparatus and a PET container for containing.

According to one embodiment of the present invention for achieving the above object, in the large container PET container molding apparatus, while forming and moving to both sides so as to form a PET container to form the appearance of the PET container, the sleeve guide is installed A guide ball is formed and left and right molds in which a preform for forming an opening of a PET container is located below; A lower molding mold coupled to an upper portion of the left and right molds and configured to form a lower portion of the PET container; A guide channel is formed therein to be coupled to the left and right molds and coincide with the guide ball, and a sleeve guide for forming a handle of the PET container while the hydraulic cylinder having a core configured at the end moves along the guide channel.

According to an embodiment of the present invention, the left and right molds are characterized in that the rib mold for forming a rigid rib on the outer peripheral surface of the PET container is further configured.

According to an embodiment of the present invention, the lower molding mold and the core are respectively provided with a heater to form a lower portion and a handle of the PET container by recessing the inner surface of the lower surface and the outer body of the PET container, respectively. .

According to an embodiment of the present invention, the left and right molds in which the preform is located, the lower molding mold for forming the lower part of the PET container, and the hydraulic cylinder configured with the core at the end are moved along the guide channel to form the handle of the PET container. In a PET container manufactured through a large container PET container molding apparatus including a sleeve guide, a thread is formed on the upper outer peripheral surface, the opening is open to communicate with the inside, and a variety of rigid ribs to improve the rigidity of the PET container along the outer peripheral surface Is formed in a scent shape, the handle having a groove portion formed to be recessed by the core, and a lid formed with a gas outlet which is fastened to the opening to seal the PET container, and discharges the gas formed inside the PET container It features.

According to an embodiment of the present invention, the PET container is characterized in that the diameter of the opening for the inlet consists of a large sphere of 100 ~ 300mm.

According to one embodiment of the invention, the lid is characterized in that the gripping portion is integrally configured or rotatably configured to lift the PET container more easily.

According to one embodiment of the invention, the lid is characterized in that the balance outlet is further configured in the opposite position of the gas outlet to prevent the imbalance of the PET container by the gas discharge.

According to this embodiment of the present invention, when the core installed in the mold moves toward the inside of the container to form the depression of the container to allow the air inside the container to flow smoothly to the part forming the handle so that the handle portion Since the internal pressure of the container to be formed is not reduced, there is an effect of not causing a defect in the shape of the handle.

In addition, according to an embodiment of the present invention, there is provided a PET container molding apparatus for molding a rigid rib to maximize the rigidity of the PET container at the same time, a separate gas outlet and balanced discharge port is formed, the inlet of the PET container By sealing the gas can be easily discharged of the gas present in the container, it is possible to prevent the imbalance caused by the gas discharge.

1 and 2 is a view showing a handle formed in a PET container according to the prior art,

Figure 3 is a view showing a PET container molding apparatus for a large sphere according to an embodiment of the present invention,

4 and 5 is a view showing the operation of the PET container forming apparatus for large ball according to an embodiment of the present invention,

6 and 7 is a view showing a PET container for a large sphere according to an embodiment of the present invention,

8 is a perspective view showing a lid of the PET container for a large sphere according to an embodiment of the present invention,

Figure 9 is a cross-sectional view showing the lid of the PET container for large ball according to an embodiment of the present invention,

10 to 12 is another embodiment showing the lid of the PET container for large spheres according to an embodiment of the present invention.

In the large container PET container molding apparatus,

Forming the exterior of the PET container while separated and moved to both sides so as to form the PET container, the guide ball is formed the sleeve guide is installed, the left and right molds in which the preform for forming the opening of the PET container in the lower portion;

A lower molding mold coupled to an upper portion of the left and right molds and configured to form a lower portion of the PET container;

A guide guide coupled to the left and right molds and formed with a guide channel therein, and having a core formed at an end of the hydraulic cylinder moving along the guide channel to form a handle of the PET container;

PET container molding apparatus for a large diameter sphere comprising a.

As shown in Figure 3, the PET container molding apparatus of the present invention is to form a handle by pressing the PET container 100 side by pressing the mold, separated movement to both sides to form the PET container 100 And the guide hole 210 is formed in the center, the left and right molds 200 in which the preform 204 for forming the opening of the PET container 100 is located at the lower part, have a predetermined space part 202 therein. It is composed.

The left and right molds 200 are installed to correspond to the upper space portion 202, and the lower molding mold 220 is configured therein to form the lower surface of the PET container 100.

In addition, the sleeve guide 230 is configured to be coupled to the left and right molds 200 and formed with a guide channel 232 therein to be matched with the guide ball 210.

In addition, the hydraulic cylinder 240 is coupled to the sleeve guide 230, while being moved by the rod 242 of the hydraulic cylinder 240 to form a handle 120 having grooves 110 on both sides of the PET container 100. The core 250 is configured to be able to.

Here, the core 250 may form one or more handles 120 by recessing the body side of the PET container 100.

The core 250 may be further configured to maintain a constant molding temperature in order to mold the handle 120, but is not limited thereto.

4 and 5, the present invention configured as described above, in order to first form the PET container 100 by blowing a resin of one PET container in the shape of a small ball like the lower side between the mold 200 After being placed in, the preform 204 is inserted to form the opening to the inlet of the PET container 100.

When the resin and the preform 204 of the PET container 100 are positioned between the left and right molds 200, the left and right molds 200 are coupled to each other by pushing the opened left and right molds 200 to raise the lower molding mold 220 located at the upper portion thereof. 202) and the inlet close contact with the left and right molds 200 and the lower molding mold 220 on the top, and then injected air into the resin, the raw material of the PET container 100 located in the upper, the resin expands while the left and right molds ( According to the shape formed on the 200 and the lower molding mold 220, the molding of the PET container 100 is made.

At this time, as shown in Figure 6 and 7, the body outer circumferential surface of the PET container 100, the rigid ribs 140 for improving the rigidity of the container may be formed in various shapes, the rigidity in the left and right mold 200 Of course, the rib mold of various shapes for forming the rib 140 is further configured.

After the PET container 100 is formed in a constant shape as described above, the hydraulic cylinder 240 operates in the state in which the left and right molds 200 are coupled, so that the core 250 provided at the end of the rod 242 is the PET container 100. Recessed both sides of the to form a handle 120 having a groove (110).

At this time, the core 250 by the rod 242 extending by the pressure of the hydraulic cylinder 240 recessed both sides of the PET container 100 through the guide hole 210 in the guide channel 232 of the sleeve guide 230. The handle 120 is molded.

In addition, since the core 250 recessed on both sides of the PET container 100 is provided with a heater therein to heat the core 250, the core 250 corresponds to the body of the PET container 100 by hot heat. The body of the container 100 is deformed according to the shape of the core 250 to form a handle 120 made of the groove 110.

In addition, the position of the handle 120 may be changed according to the installation position of the guide ball 210 and the sleeve guide 230 corresponding to the guide ball 210 formed in the left and right mold 200, According to the capacity of the PET container 100, it can be formed in one or two, three, four, etc., the number of the hydraulic cylinder having a core in proportion to the number of the handle 120 is also installed to correspond.

At this time, the hydraulic cylinder 240 installed on the left and right molds 200 are installed on both sides to simultaneously drive the cores 250 respectively formed at both sides when the handle 120 is formed, thereby simultaneously forming an outer surface of the body of the PET container 100. Since the groove 110 forming the handle 120 to be recessed is formed at both sides of the PET container 100, the user can configure the handle 120 more easily and easily.

After the PET container 100 is molded, the hydraulic cylinder 240 installed in the left and right molds 200 and the sleeve guide 230 pressurizes the hydraulic pressure so that the rod 242 is extended and the core installed at the end of the rod 242. Since the 250 passes through the guide channel 232 and the guide ball 210 of the sleeve guide 230 and pressurizes to the inner surface of the corresponding PET container 100 body, the body is recessed to form the handle 120. .

At this time, the core 250 has a heater installed therein, so that the core 250 is heated so that the body is pushed in while maintaining the shape of the heated core when the PET container 100 is recessed from the outside to the inside. Since the outer periphery that does not correspond to the core is not pushed back, the groove 110 forming the handle 120 is formed in a precise shape.

6 and 7, the PET container 100 formed by the preform 204 is formed in a large diameter sphere having a diameter of 100 to 300 mm.

In addition, the diameter of the large orifice is to refer to the large inlet, and does not necessarily limit the diameter 100 ~ 300mm.

In addition, the PET container 100 is formed on the basis of the above content is that the handle 120 can be easily molded even in a large capacity container, such as 10ℓ ~ 50ℓ.

PET container 100 of the present invention is not limited to the shape and shape, and the shape and shape of the handle 120 to any fixed shape.

In addition, the PET container 100 of the present invention, as shown in Figure 8, the lid 300 for sealing the opening 150 is further configured.

The lid 300 seals the opening 150 to prevent the contents stored in the PET container 100 from leaking out. The inner circumferential surface of the lid 300 is screwed so that the opening can be fastened by the screw fastening method with the opening 150. The formed fastening part 302 is formed.

In addition, the lid 300 has a gas outlet 330 for discharging the gas remaining in the inside of the PET container 100, the gas outlet 330 is selectively opened by a closed cap 320 It is configured to discharge the gas.

Here, the gas outlet 330 may be formed only on one upper surface of the lid 300, but is not limited thereto. The gas outlet 330 may be formed in a plurality of forms spaced apart along the upper circumferential surface of the lid 300.

On the other hand, the lid 300 is a holding portion 310 is further configured to lift the PET container 100 more easily.

The grip portion 310 may be integrally formed on the upper portion of the lid 300 or may be coupled to the rotatable structure from the lid 300.

As shown in FIGS. 10 to 12, the cap 300 further forms a balanced discharge port 340 at an opposite position of the gas discharge port 330 to prevent an imbalance phenomenon of the PET container 100 due to the gas discharge. You can prevent it.

Provides a PET container forming apparatus for large-sized openings that can form a rigid rib at the same time to maximize the rigidity of the PET container, a separate gas outlet and a balanced discharge port is formed, and the inlet of the PET container is sealed to the Not only easy discharge can be made, but there is an effect that can prevent the imbalance caused by the gas discharge.

100: PET container 110: groove

120: handle 140: rigid rib

150: opening 200: left and right mold

210: guide ball 220: lower molding mold

230: sleeve guide 240: hydraulic cylinder

250: core 300: lid

310: gripper 320: airtight stopper

330: gas outlet 340: balanced outlet

Claims

In the large container PET container molding apparatus,

Forming the exterior of the PET container while separated and moved to both sides so as to form the PET container, the guide ball is formed the sleeve guide is installed, the left and right molds in which the preform for forming the opening of the PET container in the lower portion;

A lower molding mold coupled to an upper portion of the left and right molds and configured to form a lower portion of the PET container;

A guide guide coupled to the left and right molds and formed with a guide channel therein, and having a core formed at an end of the hydraulic cylinder moving along the guide channel to form a handle of the PET container;

PET container molding apparatus for a large diameter sphere comprising a.
The method of claim 1,

The left and right molds PET container forming apparatus for a large gloss sphere, characterized in that the rib mold for forming a rigid rib on the outer peripheral surface of the PET container is further configured.
The method of claim 1,

The lower molding mold and the core is installed in the heater, respectively, recessed the lower surface and the outer surface of the body of the PET container inward to form a large container for PET container, characterized in that for molding the bottom and handle of the PET container respectively.
Large container PET container including a left and right mold in which the preform is located, a lower molding mold for forming the lower part of the PET container, and a sleeve guide for forming a handle of the PET container while the hydraulic cylinder configured with a core at the end moves along the guide channel. In the PET container manufactured by the molding apparatus,

A thread is formed on the upper outer circumferential surface, and the opening is opened in communication with the inside,

Rigid ribs that improve the rigidity of PET containers along the outer circumferential surface are formed in various directions.

A handle having a groove formed to be recessed by the core,

The PET container is fastened to the opening to seal the PET container, the PET container characterized in that the lid is formed with a gas outlet for discharging the gas formed in the inside of the PET container.
The method of claim 4, wherein

The PET container is a PET container, characterized in that the opening for the inlet is made of a large sphere of diameter 100 ~ 300mm.
The method of claim 4, wherein

The cap container is characterized in that the gripping portion is integrally configured or rotatably configured to lift the pet container more easily.
The method of claim 4, wherein

The lid container is characterized in that the PET container further comprises a balanced discharge port in the opposite position of the gas outlet to prevent the imbalance of the PET container by the discharge of the gas.