TWI634084B - Stacked molding structure and glass molding apparatus - Google Patents

Abstract

A laminated mold structure comprising an upper mold, a lower mold and at least one middle mold. At least one middle mold is disposed between the upper mold and the lower mold. At least two glass forming spaces are formed between the upper mold, the lower mold and the at least one middle mold and accommodate at least two mold glass. The upper mold and the lower mold and the at least one middle mold jointly hold at least two mold glass and perform hot press forming on at least two mold glass.

Description

Laminated mold structure and glass forming equipment

The invention provides a laminated mold structure and a glass forming device, in particular to a laminated mold structure capable of simultaneously molding at least two mold glass, and a laminated mold structure and a molded glass by a ring-shaped radiant heater self-laminated mold structure. Heated glass forming equipment.

Please refer to FIG. 1. FIG. 1 is a schematic view of a prior art glass forming apparatus 1. As shown in FIG. 1, the glass forming apparatus 1 includes a mold structure 10, an upper heating plate 12, and a lower heating plate 14. The mold structure 10 is composed of an upper mold 100 and a lower mold 102. A glass molding space 104 is formed between the upper mold 100 and the lower mold 102, and the glass molding space 104 is for accommodating a molded glass 2. When molding the molded glass 2 by the mold structure 10, the prior art first contacts the upper mold 100 and the lower mold 102 with the upper heating plate 12 and the lower heating plate 14, respectively, so that the upper heating plate 12 and the lower heating plate 14 are thermally conducted. The mold structure 10 and the molded glass 2 are heated in a manner. After the mold glass 2 is heated and softened, the upper mold 100 and the lower mold 102 sandwich and press the mold glass 2, and the edges of the mold glass 2 are thermoformed in accordance with the shape of the glass molding space 104.

Since the mold structure 10 can only form one molded glass 2 at a time, the production capacity is limited. When a certain number of molded glass 2 is molded by the mold structure 10, the production time is long and energy is consumed. In addition, when the upper heating plate 12 and the lower heating plate 14 heat the mold structure 10 and the mold glass 2 by means of heat conduction, the intermediate portion A1 of the mold structure 10 generates a heat collecting effect, and the side area A2 of the mold structure 10 will Produces heat dissipation. Therefore, when the temperature around the mold glass 2 reaches the bendable temperature, the intermediate plane area of the mold glass 2 may cause surface flaws such as orange peel and fogging due to overheating, thereby affecting the surface quality of the molded glass 2 after molding.

The present invention provides a laminated mold structure capable of simultaneously molding at least two molds and a glass forming apparatus for heating a laminated mold structure and a mold glass by a ring-shaped radiant heater from a laminated mold structure to solve the above problems.

According to an embodiment, the stacked mold structure of the present invention comprises an upper mold, a lower mold, and at least one middle mold. At least one middle mold is disposed between the upper mold and the lower mold. At least two glass forming spaces are formed between the upper mold, the lower mold and the at least one middle mold and accommodate at least two mold glass. The upper mold and the lower mold and the at least one middle mold jointly hold at least two mold glass and perform hot press forming on at least two mold glass.

According to another embodiment, the glass forming apparatus of the present invention comprises a stacked mold structure and an annular radiant heater. The stacked mold structure includes an upper mold, a lower mold, and at least one middle mold. At least one middle mold is disposed between the upper mold and the lower mold. At least two glass forming spaces are formed between the upper mold, the lower mold and the at least one middle mold and accommodate at least two mold glass. The annular radiant heater has an annular heating space. The stacked mold structure is disposed in the annular heating space. The annular radiant heater heats the laminated mold structure and the at least two mold glass from the periphery of the laminated mold structure by infrared radiation. The upper mold and the lower mold and the at least one middle mold jointly hold at least two mold glass and perform hot press forming on at least two mold glass.

In summary, the present invention is to provide at least one intermediate mold between the upper mold and the lower mold to form a laminated mold structure. Since the upper mold, the lower mold and the at least one middle mold form at least two glass molding spaces for accommodating at least two mold glass, the laminated mold structure of the present invention can utilize the upper mold and the lower mold together with at least one middle mold. At least two mold glass is clamped and at least two mold glass is hot pressed. Thereby, the laminated mold structure of the present invention can form at least two mold glass at a time, thereby increasing productivity. When a certain amount of molded glass is molded by the laminated mold structure of the present invention, the production time can be effectively shortened and energy is saved.

In addition, the present invention utilizes a ring-shaped radiant heater to radiate infrared radiation from a stacked mold junction. The laminated mold structure and the molded glass are heated around the structure. Since the heat generated by the infrared radiation is gradually transferred from the periphery of the laminated mold structure to the inside of the laminated mold structure, the ambient temperature of the stacked mold structure is higher than the internal temperature of the laminated mold structure during the heating process. . When the temperature around the molded glass reaches the bendable temperature, the intermediate plane of the molded glass is relatively low temperature, and no surface defects such as orange peel and fog are caused by overheating. Therefore, the present invention can effectively ensure the surface quality after molding of the molded glass.

The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.

1, 3‧‧‧ glass forming equipment

2, 4‧‧‧ molded glass

10‧‧‧Mold structure

12, 36‧‧‧Upper heating plate

14, 34‧‧‧ Lower heating plate

30‧‧‧Stacked mold structure

32‧‧‧Circular radiant heater

100,300‧‧‧上模

102, 302‧‧‧

104, 304‧‧‧glass molding space

303‧‧‧中模

320‧‧‧Circular heating space

3000‧‧‧First molding structure

3020‧‧‧Second forming structure

3022‧‧‧Second Aid Department

3024‧‧‧Second Limitation

3030‧‧‧ Third forming structure

3032‧‧‧Four shaped structure

3034‧‧‧First Aid Department

3036‧‧‧First Limitation

Figure 1 is a schematic illustration of a prior art glass forming apparatus.

Fig. 2 is a schematic view of a glass forming apparatus according to an embodiment of the present invention.

Fig. 3 is an exploded view of the laminated mold structure in Fig. 2.

Figure 4 is an exploded view of the stacked mold structure in Figure 2 from another perspective.

Fig. 5 is a cross-sectional view showing the glass forming apparatus in Fig. 2.

Fig. 6 is another schematic view of a glass forming apparatus according to an embodiment of the present invention.

Figure 7 is a cross-sectional view of the glass forming apparatus in Figure 6.

Figure 8 is a cross-sectional view showing the structure of a laminated mold according to another embodiment of the present invention.

Figure 9 is a cross-sectional view showing the structure of a laminated mold according to another embodiment of the present invention.

Figure 10 is a cross-sectional view showing the structure of a laminated mold according to another embodiment of the present invention.

Figure 11 is a cross-sectional view showing the structure of a laminated mold according to another embodiment of the present invention.

Please refer to FIG. 2 to FIG. 5, FIG. 2 is a schematic view of a glass forming apparatus 3 according to an embodiment of the present invention, and FIG. 3 is an exploded view of the laminated mold structure 30 of FIG. 2, and FIG. In Figure 2 An exploded view of the laminated mold structure 30 at another viewing angle, and Fig. 5 is a cross-sectional view of the glass forming apparatus 3 of Fig. 2.

As shown in FIGS. 2 to 5, the glass forming apparatus 3 includes a laminated mold structure 30, an annular radiant heater 32, and a lower heating plate 34. The stacked mold structure 30 is disposed on the lower heating plate 34. The stacked mold structure 30 includes an upper mold 300, a lower mold 302, and at least one middle mold 303. At least one middle mold 303 is disposed between the upper mold 300 and the lower mold 302 such that at least two glass forming spaces 304 are formed between the upper mold 300, the lower mold 302, and the at least one middle mold 303. At least two glass forming spaces 304 are used to accommodate at least two mold glass.

Since the upper mold 300, the lower mold 302 and the at least one middle mold 303 form at least two glass molding spaces 304 for accommodating at least two mold glass 4, the laminated mold structure 30 of the present invention can utilize the upper mold 300 and the lower mold 300. The mold 302 and the at least one middle mold 303 jointly hold at least the second mold glass 4 and hot press forming at least the second mold glass 4. Thereby, the laminated mold structure 30 of the present invention can form at least two mold glass 4 at a time, thereby increasing productivity. When a certain number of molded glass 4 is molded by the laminated mold structure 30 of the present invention, the production time can be effectively shortened and energy saving.

In this embodiment, a middle mold 303 is disposed between the upper mold 300 and the lower mold 302. Therefore, two glass molding spaces 304 are formed between the upper mold 300, the lower mold 302 and the at least one middle mold 303. To accommodate two sheets of molded glass 4. As shown in Fig. 5, the glass forming space 304 between the upper mold 300 and the middle mold 303 accommodates one piece of molded glass 4, and the glass forming space 304 between the lower mold 302 and the middle mold 303 accommodates another piece of molded glass 4. It should be noted that, in practical applications, the number of the middle molds 303 may be one or more, so that two or more glass forming spaces are formed between the upper mold 300, the lower mold 302 and the middle mold 303, and further Two or more molded glass 4 is accommodated. Therefore, the present invention is not limited to the embodiments illustrated in the drawings.

In this embodiment, the stacked mold structure 30 can be made of metal, graphite, ceramic or other material having high thermal conductivity. The annular radiant heater 32 has an annular heating space 320. As shown in FIGS. 2 and 5, when the mold glass 4 is molded by the laminated mold structure 30, the upper mold 300, The lower mold 302 and the middle mold 303 together hold the molded glass 4, and the laminated mold structure 30 is disposed in the annular heating space 320 of the annular radiant heater 32. Next, the annular radiant heater 32 is controlled to heat the laminated mold structure 30 and the molded glass 4 from the periphery of the laminated mold structure 30 by infrared radiation. Since the heat generated by the infrared radiation is gradually transferred from the periphery of the laminated mold structure 30 to the inside of the laminated mold structure 30, the ambient temperature of the stacked mold structure 30 is higher than that of the stacked mold structure during the heating. 30 internal temperature. When the temperature around the mold glass 4 reaches a bendable temperature, the intermediate plane region of the laminated mold glass 4 is relatively low in temperature, and no surface defects such as orange peel or fog are caused by overheating. Therefore, the present invention can effectively ensure the surface quality of the molded glass 4 after molding.

In this embodiment, the glass forming apparatus 3 may further include an actuator (not shown) coupled to the annular radiant heater 32. The actuator can drive the annular radiant heater 32 up and down relative to the stacked mold structure 30 such that the stacked mold structure 30 is disposed in the annular heating space 320 of the annular radiant heater 32.

In another embodiment, the glass forming apparatus 3 may further include an actuator (not shown) coupled to the stacked mold structure 30. The actuator can drive the stacked mold structure 30 up and down relative to the annular radiant heater 32 such that the stacked mold structure 30 is disposed in the annular heating space 320 of the annular radiant heater 32.

It should be noted that the annular radiant heater 32 of the present invention may be of a single tube structure or a double tube structure to achieve the purpose of circumferentially heating the entire circumference of the laminated mold structure 30.

Please refer to FIG. 6 and FIG. 7. FIG. 6 is another schematic view of a glass forming apparatus 3 according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view of the glass forming apparatus 3 of FIG. As shown in Figures 6 and 7, the glass forming apparatus 3 may further comprise an upper heating plate 36, wherein the upper heating plate 36 cooperates with the lower heating plate 34 to preheat the laminated mold structure 30 and the molded glass 4. Prior to heating the laminated mold structure 30 and the mold glass 4 from the periphery of the laminated mold structure 30 by infrared radiation using the above-described annular radiant heater 32, the present invention may first utilize the upper heating plate 36 from above the laminated mold structure 30. Cascading The mold structure 30 is heated with the mold glass 4, and the laminated mold structure 30 and the mold glass 4 are heated from below the laminated mold structure 30 by the lower heating plate 34.

Before the temperature around the molded glass 4 reaches the bendable temperature, the lower heating plate 34 and the stacked mold structure 30 thereon are transferred to a workstation provided with the annular radiant heater 32 to utilize the annular radiant heater 32 for infrared rays. The laminated mold structure 30 and the mold glass 4 are heated around the laminated mold structure 30 to bring the temperature around the mold glass 4 to a bendable temperature.

When the temperature around the molded glass 4 reaches the bendable temperature, the lower heating plate 34 and the stacked mold structure 30 thereon can be transferred to the workstation provided with the upper heating plate 36 to utilize the upper heating plate 36 and the lower heating. The plate 34 is engaged to actuate the upper die 300 and the lower die 302 to move to the clamping position, so that the upper die 300, the lower die 302 and the middle die 303 are hot press formed on the molded glass 4. Finally, the laminated mold structure 30 is cooled and cooled, and the molded glass 4 after molding can be taken out from the laminated mold structure 30.

It should be noted that the workstations provided with the upper heating plate 36 and the annular radiant heater 32 may be one or more depending on the actual application.

In this embodiment, the upper mold 300 may have a first molding structure 3000, the lower mold 302 may have a second molding structure 3020, and the middle mold 303 may have a third molding structure 3030 and a fourth molding structure 3032. As shown in FIG. 3 to FIG. 5, the third molding structure 3030 and the fourth molding structure 3032 are located on opposite sides of the middle mold 303, so that the first molding structure 3000 of the upper mold 300 and the third molding medium 303 can be the third. The molding structure 3030 cooperates with one of the two molding glass 4 to perform hot press forming, and the second molding structure 3020 of the lower mold 302 can cooperate with the fourth molding structure 3032 of the middle mold 303 to perform the other of the two molding glass 4 Hot press forming. Further, the first molding structure 3000 of the upper mold 300 and the third molding structure 3030 of the middle mold 303 may be interfitting concave and convex structures (for example, mutually matching grooves and bosses), and the second mold 302 is second. The molding structure 3020 and the fourth molding structure 3032 of the middle mold 303 may be interfitting concave and convex structures (for example, mutually cooperating grooves and bosses).

As shown in FIG. 5, the middle mold 303 may have a first bearing portion 3034, and the lower mold 302 may have a second bearing portion 3022, such that the molded glass 4 between the upper mold 300 and the middle mold 303 bears against the first bearing portion 3034, and the molded glass 4 between the lower mold 302 and the middle mold 303 bears against the first portion The second bearing part 3022. In addition, the middle mold 303 can have a first limiting portion 3036, and the lower mold 302 can have a second limiting portion 3024, such that the first limiting portion 3036 limits the molded glass between the upper mold 300 and the middle mold 303. 4, and the second limiting portion 3024 limits the molded glass 4 between the lower mold 302 and the middle mold 303.

8 to 10, FIG. 8 is a cross-sectional view of a laminated mold structure 30 according to another embodiment of the present invention, and FIG. 9 is a cross-sectional view of a laminated mold structure 30 according to another embodiment of the present invention. Figure 10 is a cross-sectional view of a stacked mold structure 30 in accordance with another embodiment of the present invention. As shown in Figs. 8 to 10, the upper mold 300, the lower mold 302 and the middle mold 303 of the laminated mold structure 30 of the present invention can be designed in different forms depending on the practical application. In addition, according to different forms of the stacked mold structure 30 shown in FIGS. 8 to 10, one of the upper mold 300 and the middle mold 303 may have the above-mentioned first bearing portion, and the lower mold 302 and the middle mold One of the 303 may have the second abutting portion described above such that one of the two-molded glass 4 bears against the first bearing portion, and the other of the two-molded glass 4 bears against the second bearing portion . In addition, one of the upper mold 300 and the middle mold 303 may have the first limiting portion described above, and one of the lower mold 302 and the middle mold 303 may have the second limiting portion described above, such that the first limit portion One of the two mold glass 4 is limited, and the second limit portion limits the other of the two mold glass.

Referring to Figure 11, Figure 11 is a cross-sectional view of a stacked mold structure 30 in accordance with another embodiment of the present invention. As shown in FIG. 11, the present invention can provide two middle molds 303 between the upper mold 300 and the lower mold 302. Thereby, the laminated mold structure 30 can form three sheets of the molded glass 4 at a time, thereby further increasing the productivity.

In summary, the present invention is to provide at least one intermediate mold between the upper mold and the lower mold to form a laminated mold structure. Since the upper mold, the lower mold and the at least one middle mold form at least two glass molding spaces for accommodating at least two mold glass, the laminated mold structure of the present invention can utilize the upper mold and the lower mold together with at least one middle mold. At least two mold glass is clamped and at least two mold glass is hot pressed. Thereby, the laminated mold structure of the present invention can form at least two mold glass at a time, thereby increasing productivity. When a certain amount of molded glass is molded by the laminated mold structure of the present invention, the production time can be effectively shortened and energy is saved.

Further, the present invention utilizes a ring-shaped radiant heater to heat the laminated mold structure and the molded glass from the periphery of the laminated mold structure by infrared radiation. Since the heat generated by the infrared radiation is gradually transferred from the periphery of the laminated mold structure to the inside of the laminated mold structure, the ambient temperature of the stacked mold structure is higher than the internal temperature of the laminated mold structure during the heating process. . When the temperature around the molded glass reaches the bendable temperature, the intermediate plane of the molded glass is relatively low temperature, and no surface defects such as orange peel and fog are caused by overheating. Therefore, the present invention can effectively ensure the surface quality after molding of the molded glass.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

Claims (5)

A glass forming apparatus comprising: a stacked mold structure comprising: an upper mold; a lower mold; and at least one middle mold disposed between the upper mold and the lower mold, at least two glass forming spaces formed on the upper mold Between the lower mold and the at least one middle mold, and containing at least two mold glass; and an annular radiant heater having an annular heating space; wherein the laminated mold structure is disposed in the annular heating space, the annular radiation The heater heats the stacked mold structure and the at least two mold glass from the periphery of the laminated mold structure by infrared radiation, and the upper mold, the lower mold and the at least one middle mold jointly hold the at least two mold glass and The at least two-molded glass is subjected to hot press forming. The glass forming apparatus according to claim 1, wherein the upper mold has a first molding structure, the lower mold has a second molding structure, and the at least one middle mold has a third molding structure and a fourth molding structure, the first Forming the structure and the third molding structure to perform hot press forming on one of the at least two mold glass, the second molding structure and the fourth molding structure cooperating to pressurize the other of the at least two mold glass . The glass forming apparatus according to claim 2, wherein the first molding structure and the third molding structure are mutually matching concave and convex structures, and the second molding structure and the fourth molding structure are mutually matching concave and convex structures. The glass forming apparatus according to claim 1, wherein one of the upper mold and the middle mold has a first bearing portion, and one of the lower mold and the middle mold has a second bearing portion. One of the at least two mold glass is supported by the first bearing portion, and the other of the at least two mold glass is supported by the second bearing portion. The glass forming apparatus of claim 1, wherein one of the upper mold and the middle mold has a first limiting portion, and one of the lower mold and the middle mold has a second limiting portion. The first limiting portion limits one of the at least two molded glass, and the second limiting portion limits the other of the at least two molded glass.