KR20130067397A - A glass moulding apparatus with devices for purging pre-chambers and moulds with inert gas - Google Patents

Abstract

PURPOSE: A glass product molding apparatus equipped with an apparatus for purging a pre-chamber and a mold with inert gas is provided to prevent the lives of the mold and parts from reducing by suppressing the oxidation in a molding chamber. CONSTITUTION: A glass product molding apparatus(100) includes a molding chamber(40), an inputting chamber(50), and an outputting chamber(70). The molding chamber heats and compression-molds a raw material and cools the molded product. The inputting chamber is arranged at the entrance of the molding chamber and inputs a mold(10) containing the raw material into the molding chamber. The outputting chamber is arranged at the exit of the molding chamber and discharges the mold containing the molded product from the molding chamber. An inert gas supplying line is in connection with the molding chamber and the inputting chamber. The inner part of the inputting chamber is purged when the mold containing the raw material is arranged into the inputting chamber. [Reference numerals] (90) Inert gas tank; (AA,BB,CC) Discharge

Description

Glassware forming apparatus with device to purge prechamber and mold body with inert gas {A GLASS MOULDING APPARATUS WITH DEVICES FOR PURGING PRE-CHAMBERS AND MOULDS WITH INERT GAS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for forming a product by heating and compressing a raw material such as glass, and more particularly, to an injection chamber at a main chamber entrance where hot compression molding takes place in order to improve the quality of a molded product. And a preliminary chamber, such as a discharging chamber, and purge the main chamber as well as the preliminary chambers with an inert gas, and further, forcibly extract and purge the gas inside the mold body in which the product is molded. A glass article molding apparatus.

Generally, materials such as plastic and glass are used for optical devices such as lenses and prisms. Since plastics are inferior in performance to glass in thermal expansion, refractive index, chromatic aberration, transmittance, resolution, and the like, optical devices requiring high precision are required. Glass is widely used in such products. In the past, such glass optical elements were processed by polishing, but mass production is difficult with such polishing. In addition, recently, aspheric optical lenses are frequently used for simplifying, miniaturization, and lightening of optical devices, such as digital cameras and web cameras. There are various problems in processing such aspherical lenses by conventional polishing methods.

In order to mass-produce glass products that require such high precision, press molding apparatus called GMP (Glass Mold Press) is widely used, which is composed of an upper core and a lower core processed with high precision. It is a method of molding a product such as a lens, a prism, or the like by inserting an raw material such as glass between the molds, heating the glass transition temperature or more, and applying pressure to the molds.

In general, in a glass product molding apparatus using a press molding method, a mold body having a plurality of molding dies is used to mold a plurality of products at one time, and the mold body is inserted into the mold of the mold body while the mold body passes through the molding chamber. The raw material is heated and compressed to form the product.

In order to mold such ultra-precision glass products, before the raw material is introduced into the mold body, a cleaning operation is performed to remove foreign substances and dust attached to the raw material, and the mold chamber including the raw material is heated and compressed. Although the inside is purged with an inert gas such as nitrogen gas to improve the quality of the molded product, as shown in the photograph of FIG. Such a speckle occurs, there is a problem that lowers the quality of the product or causes a decrease in productivity. This purges the molding chamber in which the main process is carried out with an inert gas such as nitrogen gas, so that the outside air when the mold body is brought into or removed from the molding chamber, even if the internal oxygen concentration is only a few PPM. Can be penetrated into the molding chamber, and since the air containing oxygen is already contained in the mold body itself, which is carried into the molding chamber, the mold body and the raw material are heated at a high temperature in the molding chamber. The gas generated may react with oxygen, and as the number of moldings increases, the reactants may gradually deposit on the core surface, causing product defects. This oxidation can reduce the quality of the molded product and shorten the life of the mold itself and other device components. In addition, even when there is no oxygen, when the raw material is heated, the gas generated from the raw material does not escape from the mold and accumulates in the mold body, thereby degrading the quality of the molded product.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a molding apparatus capable of molding high quality glass products.

Another object of the present invention is to reduce the oxygen concentration inside the molding chamber of the molding apparatus to the maximum, to suppress the oxidation reaction by oxygen in the molding chamber, and to prevent shortening of the life of the mold itself and other device components.

In addition, another object of the present invention is to provide a molding apparatus capable of forcibly extracting a gas generated during heating of a raw material in a mold, purging the mold with an inert gas, and molding a high quality product.

According to the present invention for achieving the above object, the glass article molding apparatus for purging the preliminary chamber and the mold body with an inert gas, the raw material is inserted into the mold body including at least one mold consisting of an upper core and a lower core. And an apparatus for heating and compressing the raw material, the apparatus comprising: a forming chamber for heating the raw material, compression molding, and cooling the molded product; An inlet chamber provided at the inlet side of the forming chamber and into which the mold body containing the raw material is introduced into the forming chamber; And a carrying-out chamber provided at an exit side of the forming chamber, wherein a mold body including a molded product is carried out from the forming chamber; A first carry-in door is installed between the shaping chamber and the carry-in chamber, a second carry-in door is installed at the inlet side of the carry-in chamber, and a first carry-in door is installed between the shaping chamber and the carry-out chamber, A second exit door is installed at the exit side of the chamber; The mold body including the raw material is brought into the molding chamber through the second loading door, the loading chamber and the first loading door, and the mold body including the product molded in the molding chamber is carried out from the first loading door. To the outside through the chamber, the second exit door; An inert gas supply line for supplying an inert gas is connected to the forming chamber and the loading chamber; When the mold body containing the raw material is introduced into the loading chamber, the inside of the loading chamber is purged with an inert gas in a state where the first and second entrance doors are closed.

In the loading chamber, a vacuum line connected to a vacuum source is preferably connected to vacuum the inside of the loading chamber, and the pressure for evacuating the inside of the loading chamber is a low vacuum pressure, about -0.05 kg / cm < 2 > To about 0.2 kg / cm 2.

Further, in the carrying-in chamber and the forming chamber, an injector for directly contacting a mold body to forcibly inject an inert gas into the mold body, and a suction for directly in contact with the mold body to forcibly inhale gas from inside the mold body. It is preferable that an apparatus is installed, and said injector comprises a spray contact portion in contact with the mold body; An injection side driving unit which moves the injection contact unit; And a flexible tube connecting the spray contact part and the inert gas supply line, wherein the suction device comprises: a suction contact part contacting the mold body; A suction side driver for moving the suction contact part; And it may include a flexible tube for connecting the suction contact and the vacuum line.

Here, it is preferable that the injection contact portion and the suction contact portion contact the mold body automatically by the sensors and the driving parts when the mold body is seated in position, and the contact contact portion and the suction contact part are automatically released from the mold body after a predetermined time.

In addition, inert gas supply lines purging the inside of the chamber and the mold body and solenoid valves are mounted on the vacuum lines for evacuating the chamber and the mold body so that the solenoid valves are automatically opened and closed by a control panel. It is desirable to.

On the other hand, the injection device and the suction device is provided one each in the loading chamber, the injection device and the suction device is provided in each of the pre-heating step for preheating the raw material and the molding step for compression molding the raw material in the molding chamber In each step, it is preferable to extract the gas inside the mold body and purge with an inert gas.

In addition, it is preferable to make the pressure inside the molding chamber higher than the external pressure to prevent outside air from penetrating into the molding chamber.

Meanwhile, an inert gas supply line such as an inlet chamber may be installed in the carrying out chamber, and the inside of the carrying out chamber may be purged with an inert gas, and a vacuum device for evacuating the inside of the carrying out chamber may be installed. Here, the pressure for evacuating the inside of the discharging chamber is also a low vacuum pressure, preferably about -0.05 kg / cm 2 to about -0.2 kg / cm 2.

As described above, the glass forming apparatus according to the present invention, heating and molding is The oxygen concentration inside the forming chamber is almost zero, and the oxidation reaction is suppressed to the maximum despite the high temperature, so that a good molded product can be produced, and the life of the mold body and other device parts is shortened by the oxidation reaction. You can prevent it.

Further, according to the present invention, there is provided a suction device that can be in direct contact with the mold body forcibly extract the gas inside the mold body, and an injection device that can be in direct contact with the mold body to force purge the inside of the mold body with an inert gas Thus, the oxygen concentration in the mold body can be substantially zeroed, and the quality of the molded product can be prevented from being degraded due to the gas generated when the raw material is heated.

Other detailed effects will be described in detail in the following description.

1 is a photograph showing an example of a quality defect actually occurred in a glass lens molded by a conventional press molding apparatus.
2 is a view showing an example of a mold body having a plurality of molding die.
FIG. 3 is a schematic view of a forming apparatus having preliminary chambers purged with an inert gas and devices for directly purging and evacuating the inside of the mold body according to the present invention.
FIG. 4 is an enlarged view of an apparatus for directly purging and evacuating the inside of a mold body, for example, in the loading chamber according to the present invention.

Hereinafter, a glass article forming apparatus having an apparatus for purging a prechamber and a mold body with an inert gas according to the present invention will be described in detail with reference to the accompanying drawings, which are illustrative and conceptual and the present invention is limited thereto. It is not.

First, referring to FIG. 2, a mold body 10 having a plurality of molds for molding a product is illustrated. Although the mold body 10 having six molds is shown in the figure, the number of molds can be changed as necessary. 2 (a) is an exploded cross-sectional view of the mold body 10, (b) is a plan view of the holder 13, (c) is a perspective view of the holder 13, (d) is a lower core 12 ) Shows the assembly state of the mold body 10 before the raw material 1 is inserted and molded between the upper core 14 and (e), and the upper core 14 of the mold body 10 is pressed. The state in which the raw material 1 is molded into a product such as a lens is shown.

As shown in FIG. 2, the mold body 10 includes a die plate 11, a lower core 12, an upper core 14, a holder 13, a stop ring 15, and the like. 12 and the upper core 14 form one mold in which the raw material 1 is placed and molded therebetween. Here, the raw material 1 may be a spherical or preform having a certain shape. The holder 13 is formed with a plurality of core insertion holes 13b in which a mold formed of the lower core 12 and the upper core 14 is tightly received. When the raw material 1 and the cores 12 and 14 are inserted into the core insertion hole 13b of the holder 13 and they are placed on the die plate 11 and fitted into the stop ring 15, (d) When the assembled mold body 10 is brought into the forming chamber of the molding apparatus and heated, and the lower core 12 and the upper core 14 are compressed by a press, the (m) As described above, the raw material 1 is molded to match the inner surface shapes of the lower core 12 and the upper core 14 which are precisely processed.

Meanwhile, as shown in (b) and (c), several branched air holes 13a are formed inside the body of the holder 13, and these air holes 15a formed on the outer wall of the stop ring 15 are formed. And the space inside the cores 12, 14 may be vented, and the gas inside the cores 12, 14 may be drawn out or inert gas by the inhaler and injector described later. To be purged.

3 and 4 schematically show, according to the present invention, a molding apparatus having apparatuses for directly purging and evacuating the interior of the mold body 10 and the prechambers 50 and 70 purged with an inert gas. have. Here, the first thing to be understood is that the mold body 10 in the preheating stage is indicated by Mh1-Mh3 in Figures 3 and 4, the mold body 10 in the compression molding step is denoted by MP, Mc1-Mc3 Indicated as the mold 10 in the cooling stage, Mi1-Mi4 denotes the mold body 10 to be imported, Mo1-Mo4 denotes the mold body 10 to be taken out for easy understanding. After that, the mold bodies (Mi1-Mi4), the mold bodies (MP), the mold bodies (Mi1), the mold bodies (Mo1), and the like, all refer to the mold bodies (10).

First, the molding process of the product, as shown in Figure 2, the mold body Mi1-Mi4 containing the raw material (1) is a second half in the direction of the arrow "T" by the loading conveyor 60, as shown in FIG. The mold body Mi1, which enters into the loading chamber 50 which is a preliminary chamber through the inlet Di2, and enters the loading chamber 50, is a first half in a direction of arrow “T” by a separate feeding device (not shown). It is introduced into the forming chamber 40 through the introduction Di1. In the forming chamber 40, it is subjected to several preheating steps (denoted as Mh1-Mh3 on the drawing), press-molded by pressing in the forming step (denoted by MP on the drawing), and then to several cooling steps. (Indicated as Mc1-Mc3 on the drawing), it is taken out into the unloading chamber 70 through the first unloading door Do1. The mold body Mo1 in the carrying-out chamber 70 contains the molded product, and is carried out to the outside by the carrying-out conveyor 80 in the arrow "T" direction.

On the other hand, the conveyor apparatus for carrying the mold body 10, the apparatus for injecting the mold body 10 into the molding chamber 40, the apparatus for transferring each stage in the molding chamber 40, the mold body 10 is molded Devices to be carried out from the chamber 40 are well known techniques, and detailed descriptions thereof are omitted here, and heating devices, compression apparatuses, and cooling apparatuses in the molding chamber 40 are also known techniques. Description is omitted.

Referring to FIG. 3, the molding chamber 40 is provided with a first carry-in door Di1 and a first carry-out door Do1, and the carry-in chamber 50 is located at an inlet side where the mold body 10 enters into the shaping chamber 40. ), The carrying-out chamber 70 is formed successively on the exit side from which the mold body 10 exits from the shaping chamber 40. In addition, a second entrance door Di2 is installed at an inlet into which the mold body 10 enters the carrying chamber 50, and a second carrying door Do2 is provided at an outlet from which the mold body 10 exits from the carrying out chamber 70. Is installed.

In the forming chamber 40, the loading chamber 50, and the discharge chamber 70, lines for supplying an inert gas from the inert gas tank 90 may be installed, and lines for discharging the gas purged with these inert gases may be provided. Each may be installed, and the lines and discharge lines supplied with these inert gases may be provided with chamber purging valves VP1 and discharge valves VD, respectively. These valves are preferably valves that can be automatically controlled from a control panel (not shown), such as solenoid valves and the like.

In addition, the pre-chambering chamber 50 and the discharge chamber 70 are provided with lines connected to a vacuum source (not shown), such as a vacuum tank or a vacuum pump, so as to vacuum the inside of the chamber to a slightly lower level. These lines may be equipped with chamber vacuum valves VV1. These chamber vacuum valves VV1 are also preferably valves which can be automatically controlled from the control panel, such as solenoid valves and the like. In order to measure the degree of vacuum in these chambers 50 and 70 and to automatically open and close the chamber vacuum valves VV1, vacuum sensors SV may be mounted in the chambers 50 and 70, respectively.

In addition, in the carrying-in chamber 50 and the shaping | molding chamber 40, the injection apparatus 20 which can directly and forcibly purge the inside of the metal mold | die 10 with inert gas by directly contacting the metal mold | die 10, and gold The suction device 20 may be installed to directly and forcibly pull out the gas inside the mold body 10 by directly contacting the mold body 10. The injection apparatus 20 includes an injection contact portion C1 in contact with the mold body 10, an injection side driver D1 for moving the injection contact portion C1, and the injection contact portion C1 and an inert gas supply line. It may include a flexible tube for connecting (FT), the suction device 30, the suction contact portion (C2) in contact with the mold body 10, the suction side drive unit (D2) for moving the suction contact portion (C2) And it may include a flexible tube (FT) for connecting the suction contact (C2) and the vacuum line. The inert gas supply line of the injection device 20 and the vacuum lines of the suction device 30 may be equipped with a mold purging valve VP2 and a mold vacuum valve VV2, respectively. VP2) and mold body vacuum valves VV2 are also preferably valves that can be automatically controlled from a control panel, such as solenoid valves and the like.

The injection apparatus 20 and the suction apparatus 30 are installed in the loading chamber 50 one by one for the carried-in metal mold | die Mi1, and the injection apparatus 20 and the suction apparatus in the shaping chamber 40 are provided. 30 may be installed in steps for each of the molds Mh1-Mh3 in the preheating step and the mold body MP in the molding step, and several may be installed. In the figure, four injection apparatuses 20 and four suction apparatuses 30 are shown, one for each step. However, some steps may be omitted if necessary.

Referring to Figure 3 will be described in more detail the process of molding the product using the molding apparatus according to the present invention, the process of purging and vacuuming the interior of the preliminary chamber (50, 70) and the mold body (10). . First, when the mold body 10 including the raw material 1 enters the loading chamber 50 through the second loading door Di2 by the loading conveyor 60, the first and second loading doors Di1, The chamber purging valve VP1 is opened while Di2) is closed, and the inert gas from the inert gas tank 90 enters the carrying-in chamber 50 so that the air contained in the chamber and the air contained in the mold Mi1 is inert gas. Purge in, and out through the discharge valve VD or exit to the vacuum source through the chamber vacuum valve VV1. As a result, an inert gas atmosphere with an extremely low oxygen concentration is formed in the carrying-in chamber 50 and the inside of the mold body Mi1. At this time, if the chamber vacuum valve VP1 is first opened before the chamber purging valve VP1 is opened and the inside of the loading chamber 50 is evacuated to a slight low vacuum state, the purging effect may be increased. Of course, if the inside of the loading chamber 50 is evacuated to a high vacuum state, the purging effect may be greater, but since the energy consumption increases accordingly, a low vacuum level of about -0.05 kg / cm2 to -0.2 kg / cm2 is practically realized. It is preferable to set it as the purging effect and energy cost. This degree of vacuum can be measured by the vacuum sensor SV, and when the required degree of vacuum is obtained, the chamber vacuum valve VP1 is automatically shut off by the vacuum sensor SV, and the chamber purging valve VP1 is opened to open the above-mentioned. A purging process can be performed.

However, since the assembly tolerance level of the die plate 11, the lower and upper cores 12 and 14, the holder 13, and the stop rings 15 of the mold body 10 is almost micrometer level, the imported mold body ( The air in Mi1) may not be completely escaped. Therefore, it is preferable to completely purge the inside of the mold body Mi1 carried in using the injection device 20 and the suction device 30 which can directly contact the mold body Mi1 with an inert gas.

When the purging operation is completed, the first carrying in door Di1 is opened, and the mold body Mi1 in the carrying in chamber 50 is introduced into the forming chamber 40 by a separate feeding device (not shown). At this time, the interior of the molding chamber 40 is already purged with an inert gas and the oxygen concentration reaches only a few PPM, but since the interior of the loading chamber 50 and the inside of the mold body Mi1 are purged with the inert gas, Even if the first entrance door Di1 is opened, the inert gas atmosphere inside the molding chamber 40 may be maintained as it is.

When the mold body containing the raw material 1 enters the molding chamber 40, the mold body is transferred by a separate transfer device (not shown), and thus several preheating steps (denoted as Mh1-Mh3 in the drawing) are performed. After roughing, when the mold body comes to the MP position on the drawing, it is compressed by a press (not shown) to form a product. After the molding of the product, the mold body including the molded product is subjected to several stages of cooling (indicated by Mc1 to Mc3 in the drawing), and then the first door (Do1) is opened, and the mold body including the molded product is opened. It is carried out to the unloading chamber 70 (it is represented by Mo1 on drawing). At this time, the pressure inside the molding chamber 40 is maintained higher than the internal pressure and the external pressure of the carrying-out chamber 70, so that even if the first carrying-out door Do1 is opened, external air containing oxygen does not penetrate into the shaping chamber 40. You can do that.

Alternatively, the second discharge door Do2, the chamber purging valve VP1, and the discharge valve VP are installed in the discharge chamber 70, so that the first discharge door Do1 of the forming chamber 40 is opened before the first discharge door Do1 is opened. And purging the inside of the discharging chamber 70 with an inert gas in a state where the second discharging doors Do1 and Do2 are closed, and then opening the first discharging door Do1 to take out the mold body so that external air enters into the molding chamber 40. Penetration can be prevented. In addition, as in the case of the loading chamber 50, in the discharge chamber 70, a chamber vacuum valve VV1 and a vacuum sensor SV connected to a vacuum source are installed to purge the inside of the discharge chamber 70 with an inert gas. It is preferable to make the inside of the discharge chamber 70 into a slight low vacuum state, about -0.05 kg / cm <2> -about about 0.2 kg / cm <2> vacuum. Since the inside of the carrying-out chamber 70 is evacuated, the description thereof will be omitted since it is similar to the case of the carrying-in chamber 50. At this time, it should be noted that when the mold body is taken out into the carrying out chamber 70 purged with an inert gas, the first carrying out door Do1 is immediately closed, and the second carrying out door Do2 is opened to take out the mold outside. Afterwards, purging the inside of the discharge chamber 70 with an inert gas in the state where the first and second discharge doors Do1 and Do2 are closed again is advantageous to shorten the entire cycle time.

On the other hand, since the inside of the molding chamber 40 is in a high temperature state, it is important to keep the oxygen concentration inside the molding chamber 40 at zero or keep it as small as possible while keeping it in an inert gas atmosphere at all times. And the injection device 20 which directly contacts the mold body 10 and injects inert gas, and the suction device which extracts the gas inside the mold body 10 like the carrying-in chamber 50 also in the shaping | molding chamber 40 ( 30), it is preferable to forcibly extract the gas which can be generated by preheating and heating the raw material from the mold body 10, and forcibly purging the mold body 10 with an inert gas.

Here, the injection device 20 and the suction device 30 are respectively installed for each preheating step and the molding step in the molding chamber 40 to extract the gas in the mold body 10 at each step, and purge with an inert gas. By doing so, you can produce high quality products. In some cases, however, this may be omitted for some steps.

By configuring the molding apparatus 100 as described above, the doors of the molding chamber 40, that is, the first half, for carrying in or taking out the mold body 10 into or out of the molding chamber 40. Even when the entrance Di1 or the first carry-out door Do1 is opened, it is possible to prevent outside air from penetrating into the forming chamber 40. In this way, the oxygen concentration in the molding chamber 40 can be maintained at zero or extremely low levels at all times, and the air contained in the mold body 10 itself containing the raw material 1 is also introduced into the molding chamber 40. It can be completely removed before being put into the product, so that the quality of the molded product can always be maintained well, and the gas generated from the raw material can be completely removed to the outside during the preheating and molding steps, thereby producing a product of further improved quality. . In addition, the oxygen concentration in the forming chamber 40 is made almost zero, so that the life of the mold body 10 and the components of the apparatus can be shortened by the oxidation reaction at a high temperature.

Looking at the injection device 20 and the suction device 30 in more detail, when the mold body 10 is seated in position and detected by the sensor, the injection contact portion of the injection device 20 and the suction device 30 ( C1) and the suction contact portion C2 are moved by the injection side driver D1 and the suction side driver D2 to come into contact with the mold body 10. After the purging and degassing operation is completed after contacting the mold body 10, the injection contacting unit C1 and the suction contacting unit C2 are driven by the injection side driving unit D1 and the suction side driving unit D2 by a timer or the like. Spaced apart from 10) to free the movement of the mold body 10 for the next process. In this case, since the injection contact C1 and the suction contact C2 are connected to the inert gas supply line and the vacuum line through the flexible tube FT, the flexible contact FT may be freely moved due to the elasticity of the flexible tube FT.

In addition, as mentioned above, the inert gas supply line, the vacuum line, and the discharge lines may all be equipped with automatic valves such as solenoid valves, so that all the above-described processes can be designed to be automated.

4 is an enlarged view illustrating an example of the installation in the loading chamber 50 in order to explain the injection device 20 and the suction device 30 according to the present invention. Referring to FIG. 4, in the injection contact portion C1 of the injection device 20 and the suction contact portion C2 of the suction device 30, an internal groove Ca and a through hole Cb as shown by a dotted line are provided. The groove Ca is formed in the air hole 15a formed in the stop ring 15 of the mold body 10 when the injection contact portion C1 and the suction contact portion C2 contact the mold body 10. (See FIG. 2), the through hole Cb is formed to communicate the groove Ca and the flexible tube FT inside the injection contact portion C1 and the suction contact portion C2. In order to prevent the mold body 10 from entering the loading chamber 50 through the second loading door Di2, the suction side driving unit D2 is disposed on the right side of the loading chamber 50, so that the suction contacting unit is disposed. The C2 may be moved to the right side, and the suction side driver D2 may be disposed above the carrying chamber 50 so that the suction contact C2 may move upward. The disposition of the injection-side driving unit D1 and the suction-side driving unit D2 should be arranged in consideration of the movement of the mold body 10 not to be disturbed by the injection-contacting unit C1 and the suction-contacting unit C2, which is molded The same applies to the injection device 20 and the suction device 30 of the chamber 40.

On the other hand, there are a variety of inert gas mentioned above, in terms of economical nitrogen gas can be effectively utilized, the operation of the various valves, the injection device 20 and the suction device 30 mentioned above, the mold body (10) The transfer devices may be formed to be automatically controlled by various sensors or the like. In addition, the raw material 1 is inserted into the mold body 10 to be carried in the molding chamber 40, the mold body 10 is assembled, and the mold body 10 taken out from the molding chamber 40 is disassembled. The work to take out the molded product can be automated by a robot or the like.

The above description is an exemplary description of the present invention, and the present invention is not limited thereto, and should be understood by those of ordinary skill in the art without departing from the technical spirit of the present invention as claimed in the claims. Obvious modifications are possible and such modifications are within the scope of the present invention.

1: Raw material 10: Mold body
11 die plate 12 lower core
13: holder 13a: air hole
13b: core insertion hole 14: upper core
15: stop ring 15a: air hole
20: injection device 30: suction device
40: forming chamber 50: loading chamber
60: loading conveyor 70: takeout chamber
80: carrying out conveyor 90: inert gas tank
100: molding apparatus
C1: injection contact, C2: suction contact
Ca: Groove Cb: Through Hole
D1: injection side drive unit D2: suction side drive unit
Di1, Di2: First and second doors Do1, Do2: First and second doors
FT: Flexible Tube
Mc1-Mc4: Mold body in cooling stage Mh1-Mh3: Mold body in cooling stage
Mi1-Mi4: Molded body to be imported Mo1-Mo4: Molded body to be carried
MP: Mold in the forming stage SV: Vacuum sensor
VD: discharge valve VP1: chamber purging valve
VP2: mold purging valve VV1: chamber vacuum valve
VV2: Mold Vacuum Valve

Claims (12)

An apparatus for inserting an raw material into a mold body including at least one mold consisting of an upper core and a lower core, and heating and compressing the raw material,
A molding chamber for heating the raw material, compression molding, and cooling the molded product; An inlet chamber provided at the inlet side of the forming chamber and into which the mold body containing the raw material is introduced into the forming chamber; And a carrying-out chamber provided at an exit side of the forming chamber, wherein a mold body including a molded product is carried out from the forming chamber;
A first carry-in door is installed between the shaping chamber and the carry-in chamber, a second carry-in door is installed at the inlet side of the carry-in chamber, and a first carry-in door is installed between the shaping chamber and the carry-out chamber, A second exit door is installed at the exit side of the chamber; The mold body including the raw material is brought into the molding chamber through the second loading door, the loading chamber and the first loading door, and the mold body including the product molded in the molding chamber is carried out from the first loading door. To the outside through the chamber, the second exit door;
An inert gas supply line for supplying an inert gas is connected to the forming chamber and the loading chamber; And when the mold body including the raw material is introduced into the carrying chamber, purging the inside of the carrying chamber with an inert gas while the first and second carrying doors are closed.
The method of claim 1,
And a vacuum line connected to a vacuum source to vacuum the inside of the loading chamber.
The method of claim 2,
The pressure for evacuating the inside of the loading chamber is-0.05 kg / cm 2 to-0.2 kg / cm 2 Glass molding apparatus characterized in that.
The method of claim 1,
An injection apparatus for directly in contact with the mold body and forcibly injecting an inert gas into the mold body in the carrying-in chamber and the molding chamber; Glass product molding apparatus, characterized in that the suction device is further installed.
5. The method of claim 4,
The injection device, the injection contact portion in contact with the mold body; An injection side driving unit which moves the injection contact unit; And a flexible tube connecting the injection contact portion and the inert gas supply line.
The suction device, the suction contact portion in contact with the mold body; A suction side driver for moving the suction contact part; And a flexible tube connecting the suction contact part and the vacuum line.
The method of claim 5,
And the spray contact portion and the suction contact portion are in contact with the mold body automatically when the mold body is seated in position, and automatically releases contact from the mold body after a predetermined time.
The method of claim 5,
Solenoid valves are mounted to the inert gas supply line and the vacuum line, and the solenoid valves are automatically opened and closed by a control panel.
5. The method of claim 4,
The injection apparatus and the suction apparatus installed in the molding chamber, the glass article forming apparatus, characterized in that each is installed in the preheating step of preheating the raw material and the molding step of compression molding the raw material.
The method of claim 1,
And the internal pressure of the molding chamber is greater than the external pressure to prevent external air from penetrating into the molding chamber.
The method of claim 1,
An inert gas supply line is installed in the discharging chamber, wherein the inside of the discharging chamber can be purged with inert gas.
The method of claim 10,
And a vacuum apparatus for evacuating the inside of the discharging chamber to the discharging chamber.
12. The method of claim 11,
And a pressure for evacuating the inside of the discharge chamber is -0.05 kg / cm &lt; 2 &gt; to -0.2 kg / cm &lt; 2 &gt;.

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