KR20090098375A - Injection molding apparatus - Google Patents

Abstract

An injection molding device for injecting a plurality of molded products without adding a manufacturing facility is provided to install and fix fixed and moving templates by adding an auxiliary ejector template and a nozzle heater divider. An injection molding device includes a fixing/movable sub molding plates(5, 6), a nozzle heater distributing feeder(7) and ejector template(9). Fixing and movable weir molding plates are installed at fixing and movable boards. A plurality of molds is mounted on fixing and movable weir molding plate so that the mold of the plural pair face. The nozzle heater division supply device is installed between the fixed plate and fixed beam molding plate. The nozzle heater division supply device supplies the resin material to the mold of each pair to the state preserving the temperature of the resin material.

Description

Injection Molding Apparatus {Injection Molding Apparatus}

The present invention relates to an injection molding apparatus, and in particular, by partially modifying an existing injection molding apparatus so as to allow injection molding a plurality of large-sized or large quantities of injection-molded products at the same time within an allowable capacity range, thereby allowing the capacity to be accepted. The present invention relates to an injection molding apparatus capable of improving productivity even with a single injection molding machine, which requires a plurality of injection molding machines at a size of.

In general, the conventional injection molding apparatus is a device for manufacturing injection molded articles of various forms using a synthetic resin material, one side of a pair of molds fixedly installed on the stationary plate side and the other side fixedly installed on the movable plate side injection molding When the movable die is moved, the pair of molds are bonded to each other, and the molten resin is stored as a material in the pre-formed space in accordance with the shape of the product to be molded inside the molds, and then injected at high pressure. After filling, cooling, and solidifying, the movable mold is reversed to open the mold, and then the molded product is taken out to produce a molded product.

In addition, the conventional injection molding apparatus is designed and manufactured in consideration of various issues such as the size of the molded product and the size of the mold used in accordance with the specifications of the equipment at the time of manufacturing the device, within the actual allowable range Operation will take place with sufficient margin.

However, in the case of the molded product to be manufactured, the size of the product is increased, but the capacity of the material used is not increased proportionally. Rather, when a small capacity is required, it is independent of the inherent production capacity of the original injection molding apparatus. In spite of the very small capacity, the injection molding device suitable for this needs to utilize a small injection molding device, but there is often an unreasonable problem of using a large and large injection molding device that is not suitable just because of the small size of the product. Doing.

That is, for example, when a large-capacity injection molding apparatus has a large capacity, and judges mainly on the capacity, two, three, or four large injection molded products may be produced simultaneously. Since only one injection molded product is manufactured in the specifications of a mold apparatus or injection molding apparatus that can be accepted, no further injection molding can be performed. Therefore, in order to increase the production capacity, the factory must be expanded to increase the production facilities. As a result, it is uneconomical and low in productivity, resulting in lower competitiveness.

The present invention has been made to research and development to solve such a conventional problem has been made for the following purposes.

It is an object of the present invention to partially modify an existing injection molding apparatus so that a plurality of large-sized or large amount of injection molded products can be injection molded at the same time within an allowable capacity, even if no additional manufacturing facilities are added. In order to improve the productivity by lowering the unit cost of the molded product, even if a single injection molding machine required multiple injection molding machines in the allowable machine size, it is intended to enhance the competitiveness.

In order to achieve the above object, the present invention installs a pair of molds on the stationary plate and the movable plate, respectively, and moves the movable plate to combine the paired molds, and molds the resin material from the injection machine into the molds. In the conventional injection molding apparatus which can separate a moving mold plate and take out a series of injection molded products from a metal mold | die, the said fixed mold plate and the said movable plate plate are provided with a high information molding plate and a movable auxiliary template plate, respectively, The high information molding plate and the movable auxiliary plate are installed so as to face a plurality of long molds or a plurality of pairs of molds capable of simultaneously molding a plurality of molded products, and a resin material is placed between the fixed mold plate and the high information mold plate. Install a nozzle heater dispenser for preserving and distributing the resin material temperature in the pair of molds, and By installing the template in the same type projector plate and the movable secondary sayi en comprising a secondary forward and backward directions by a reciprocating operation in the projector template provides an injection molding apparatus comprising.

In addition, the installation of the nozzle heater distributor supply groove is provided in the rear portion of the high information molding plate for the purpose of preserving the temperature and the nozzle heater distribution supplier is installed in the installation groove, wherein the nozzle heater distribution supplier is a heater around And a sprue bushing located at the inlet of the distribution preservation branch supply passage and a nozzle at the outlet of the distribution preservation branch supply passage for dissolving the resin material and preserving the temperature. The sprue bushing is provided in the center of the fixed plate and the nozzle is coupled to the nozzle heater distribution supply to be separated and coupled to move through the installation hole provided in the high information molding plate. Provided is an injection molding apparatus.

In addition, the high information molding plate and the nozzle heater distribution supplier is fixedly installed by a spacer and a fastener so that the nozzle is configured so that the installation distance can be adjusted to the front, rear via the installation hole of the high information molding plate Provide a molding apparatus.

Further, an installation groove for installing and operating the auxiliary injector plate is provided at a rear portion of the movable auxiliary plate, and an ejector hole is provided in the movable auxiliary plate to provide the auxiliary ejector plate and the auxiliary groove in the installation groove and the ejector hole. The auxiliary ejector rod is configured to be coupled to the auxiliary ejector plate, and the auxiliary ejector plate is coupled to the front and rear direction by the ejector rod of the ejector coupled to the movable plate to be interlocked and installed. The auxiliary ejector rod is coupled to provide an injection molding apparatus configured to perform an operation of taking out the injection molded product from the inside of the mold.

Thus, a fixed information plate is provided with a high information molding plate, a nozzle heater distribution supplier is installed on the information molding plate, and a movable auxiliary plate is installed on the movable mold plate, and the mold or a plurality of molds of a long product are installed on the high information molding plate and the movable auxiliary plate. It is installed to face each of a plurality of pairs of molds to form molded products at the same time, one side of which is fixedly installed on the side of the high information molding plate, and the other side is fixedly installed on the movable auxiliary plate side to prepare for injection molding work. Do the work.

During the injection molding operation, the movable heater plate is fixed to move the movable plate to fix the mold of a long product or a plurality of molded products at the same time, and the nozzle heater dispensing supplier is provided with a pair of molds facing each other. When the molten resin material is injected and supplied at a high pressure while the injection machine is coupled to the sprue bushing of the molten resin material, the molten resin material is introduced into each mold via each nozzle via the distribution preservation branch supply path of the nozzle heater distribution supply. At the same time, feeding is carried out, and the molten resin is filled as a material in a space formed in advance in accordance with the shape of the product to be molded inside the mold, and then cooled and solidified. And molded products by taking out a long product or a plurality of products formed by the auxiliary ejector template Will produce.

Therefore, the present invention adopts a separate nozzle heater dispensing feeder and an auxiliary ejector plate while installing the high information molding plate and the movable auxiliary plate on the stationary plate and the movable plate of the conventional injection molding apparatus, respectively, and the large size within the allowable capacity range. In the present invention, a plurality of injection molding machines were required at a size of a machine that allows a capacity even without additional manufacturing facilities while allowing injection molding of a plurality of injection molded products at the same time. This also improves productivity and lowers the cost of molded products, thereby enhancing competitiveness.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

According to a preferred embodiment of the present invention, a pair of molds are installed on the stationary plate 1 and the movable plate 2, respectively, and the movable plate 2 is moved to combine the paired molds, and an injection machine 3 is formed inside these dies. In the conventional injection molding apparatus, the movable mold plate (2) is separated and moved after the resin material is supplied from the mold to remove the series of injection molded products from the mold. (2) The high information molding plate (5) and the movable auxiliary plate (6) having a large size are respectively provided, and the high information molding plate (5) and the movable auxiliary plate (6) are capable of simultaneously molding a plurality of molded products. A plurality of molds 4 are installed to face each other, and a resin material is stored and distributed between the fixed mold plate 1 and the high information molding plate 5 to preserve the temperature of the resin material to each pair of molds 4. The nozzle heater dispenser (7) Between the movable plate 2 and the movable auxiliary plate (6) is made by installing an auxiliary ejector plate (9) which is reciprocated in the front and rear direction by the ejector (8).

In addition, an installation groove 50 for installing the nozzle heater distribution supplier 7 is provided at a rear portion of the high information molding plate 5, and the nozzle heater distribution supplier 7 is installed in the installation groove 50. The nozzle heater distribution supply 7 is configured to include an internal distribution preservation branch supply passage 72 and a sprue bushing 74 located at an inlet of the distribution preservation branch supply passage 72 having a heater 70 around the nozzle heater distribution supply 7. And nozzles 76 respectively disposed at the outlets of the distribution preserving branch supply paths 72, respectively, and the sprue bushings 74 have a central installation hole 10 of the stationary plate 1. The nozzle 76 is fitted to be movable through the through and the nozzle 76 is fitted through the installation hole 52 provided in the high information molding plate (5).

Furthermore, when the high information molding plate 5 and the movable auxiliary plate 6 are viewed around the stationary plate 1 or the movable plate 2, the high information molding plate 5 and the movable auxiliary plate 6 are installed according to the installation environment such as the up-down direction or the front-back direction. And the valve gate 78 is installed in the distribution preservation branch supply passage 72 adjacent to the sprue bushing 74, and when the distribution preservation branch supply passage 72 is opened, the molds 4, 4) If all the molds 4 are installed on both sides of the distribution preservation branch supply passage 72 when the mold is to be installed and utilized for injection molding at the same time, or to install the mold 4 on only one side. It is preferable to open only the side so that it can be selectively utilized as needed.

In addition, the high information molding plate 5 and the nozzle heater distribution supplier 7 is fixed by the spacer 54 and the fastener 56 so that the nozzle 76 is installed in the high information molding plate 5. It is preferable that the installation distance can be adjusted to the front and rear via the (52).

At this time, a plurality of mold installation grooves 5a and 6a for installing the mold 4 on the front surface of the high information molding plate 5 and the movable auxiliary plate 6 are provided.

In addition, the stationary plate (1) and the high information molding plate (5) and the movable plate (2) and the movable auxiliary plate (6) are assembled and fixed to each other to be separated and combined with each other by a conventional fastener. Installation will be done.

Next, an installation groove 60 for installing and operating the auxiliary injector plate 9 is provided at the rear portion of the movable auxiliary plate 6, and an ejector hole 62 is provided in the movable auxiliary plate 6. The sub-injector plate 9 and the sub-ejector rod 90 are installed in the installation groove 60 and the ejector hole 62, and the sub-injector plate 9 is movable plate ( 2) is coupled to the front and rear direction by the ejector rod 80 of the ejector (8) to be coupled to the installation, and the auxiliary ejector in the ejector hole 40 of the mold (4) at the time of coupling The rod 90 is coupled to perform an operation of taking out the injection-molded product in the mold 4.

Next, the injection molding apparatus of the present invention made as described above is made as follows.

First, from the step of preparing for the injection molding operation, the high information molding plate (5) is installed in the stationary plate (1), and the nozzle heater distribution supply (7) is installed in the information molding plate (5) and the movable plate (2). A movable auxiliary plate 6 is installed in the high information molding plate 5 and the movable auxiliary plate 6 so as to face a long product or a plurality of molds 4 which are paired with each other. One side is fixedly installed on the high information molding plate (5) side and the other side is fixedly installed on the movable auxiliary plate (6) side, each nozzle 76 of the nozzle heater distribution supply (7) is made in close contact with the mold (4) It combines in the state and prepares for injection molding.

Next, during the injection molding operation, the movable heater 2 is fixed and the movable heater 2 is fixed, and the nozzle heater is used for a long product or in a state in which a pair of molds 4 are coupled to each other. When the molten resin material is injected at high pressure and supplied to the sprue bushing 74 of the dispensing feeder 7 and the nozzle located at the tip of the injection machine 3 is supplied, the molten resin material is supplied to the nozzle heater dispensing feeder 7. In the state where the temperature of the resin material is preserved via the distribution preservation branch supply path 72 and the respective nozzles 76, the feed is simultaneously made into the respective molds 4 and molded inside these molds 4. After filling the molten resin as a material in the space formed in advance according to the shape of the product to be cooled and solidified by cooling, the movable mold 2 is retracted with the movable auxiliary plate 6 to open the mold 4. , Ejector (8) and auxiliary While the ejector plate 9 operates simultaneously, the product can be produced by taking out a long product or a plurality of molded products formed simultaneously and simultaneously by the auxiliary ejector rod 90, and repeatedly performing such injection molding operations. In the same working time, more molded products can be produced than before.

According to the injection molding apparatus of the present invention, in the conventional injection molding apparatus, the high information molding plate (5) and the movable auxiliary plate (6) having a large size are installed on the stationary plate (1) and the movable plate (2). 5) A unique nozzle heater distribution supplier 7 is installed, and the movable auxiliary plate 6 is provided with an auxiliary ejector plate 9, and a plurality of molds 4 are respectively installed in pairs. Partially modified by the method, it is possible to simultaneously injection-molded a single long injection molding product or a large injection molding product within the allowable capacity range, and the capacity is allowed even without additional production facilities. In the present invention, a plurality of injection molding machines were required in the size of a machine that can improve productivity even with a single injection molding machine, thereby lowering the cost of molded products. It can enhance the competitive air injection can be widely used in molding technology.

1 is a partially cutaway front view showing a part of the configuration as a preferred example of the present invention,

Figure 2 is an enlarged view of the main portion of Figure 1 omitting a part,

3 is another enlarged view of the main portion of FIG.

FIG. 4 is a partially cutaway front view illustrating a state in which the movable die is advanced and the molds are coupled to each other in FIG. 1.

Claims (5)

A pair of molds are installed in the stationary plate 1 and the movable plate 2, respectively, and the movable plate 2 is moved to combine the paired molds, and the resin material is supplied from the injection machine 3 to the inside of the molds. In the conventional injection molding apparatus, the movable mold 2 is separated and moved so that a series of injection molded products can be taken out from the mold. The fixed mold plate 1 and the movable plate 2 are provided with a large information molding plate 5 and a movable auxiliary plate 6 each having a large size. The high information molding plate 5 and the movable auxiliary plate 6 are installed so as to face a plurality of pairs of molds 4 capable of simultaneously molding a long molded product or a plurality of molded products. Between the stationary plate (1) and the high information molding plate (5) is provided with a nozzle heater distribution supply (7) for preserving and supplying the resin material temperature to each pair of molds (4), An injection molding apparatus, characterized in that the auxiliary ejector plate (9) is provided between the movable platen (2) and the movable auxiliary plate (6) by the ejector (8) to perform a forward and backward reciprocating operation. The method of claim 1, In the rear part of the high information molding plate (5) to provide an installation groove (50) for installing the nozzle heater distribution supplier (7) and to install the nozzle heater distribution supplier (7) in the installation groove (50) , The nozzle heater distribution supplier 7 has an internal distribution preservation branch supply passage 72 with a heater 70 around it, and a sprue bushing 74 located at the inlet of the distribution preservation branch supply passage 72 and the distribution. It is made by installing the nozzles 76 respectively located at the outlet of the preservation branch supply passage 72, The sprue bushing 74 is provided in the center of the fixed plate 1 and the nozzle 76 is fitted to be movable through the installation hole 52 provided in the high information molding plate (5). Injection molding apparatus, characterized in that. The method of claim 2, An injection molding apparatus, characterized in that the valve gate 78 is installed in the distribution preservation branch supply path (72) adjacent to the sprue bushing (74). The method of claim 1, The high information molding plate 5 and the nozzle heater distribution supplier 7 are fixedly installed by the spacer 54 and the fastener 56 so that the nozzle 76 is installed in the high information molding plate 5. Injection molding apparatus characterized in that the configuration is made so that the installation distance can be adjusted to the front, rear via). The method of claim 1, In the rear part of the movable auxiliary plate 6, an installation groove 60 for installing and operating the auxiliary injector plate 9 is provided, and an ejector hole 62 is provided in the movable auxiliary plate 6, The auxiliary ejector plate 9 and the auxiliary ejector rod 90 are installed in the installation groove 60 and the ejector hole 62, respectively. The auxiliary injector plate 9 is coupled to the front and rear direction by the ejector rod 80 of the ejector 8 coupled to the movable plate 2 so as to be interlocked and installed, the mold (4) The auxiliary ejector rod (90) is coupled to the ejector hole (40) of the injection molding apparatus, characterized in that to perform the operation of taking out the injection-molded product in the mold (4).

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