TWI609844B - Apparatus and method of forming a 3d glass - Google Patents

Abstract

A three-dimensional glass forming device comprising a fixed mold and a pressing mold disposed above the fixed mold, the fixed mold comprising a molding cavity recessed on the top surface and a plurality of first gas streams communicating with the molding cavity The press mold is movable toward the fixed mold, and the shape of the press mold is matched with the molding cavity. The invention cooperates with the molding cavity by the appearance of the pressing die, and when the pressing die presses the heated two-dimensional glass, the two-dimensional glass can be more closely attached to the molding cavity. At the same time, by using the suction force of the first gas flow paths, a three-dimensional glass product having a better molding effect is formed.

Description

Three-dimensional glass forming device and forming method thereof

A three-dimensional glass forming device and a forming method thereof, in particular, a three-dimensional glass forming device capable of improving a forming effect and a forming method thereof.

A three-dimensional glass forming device comprises a mold and a pressing cover disposed above the mold, the top surface of the mold forming a concave molding cavity, and in use, a piece of two-dimensional glass is disposed on the mold The top surface covers the molding cavity, and then the mold is heated, and the heating gas is ejected from the pressing cover to the two-dimensional glass, and the two-dimensional glass is softened and attached to the molding cavity to form a The three-dimensional glass product of the molding cavity shape. However, since there is a gap between the pressing cover and the two-dimensional glass disposed on the mold during molding, the microstructure of the surface of the molding cavity cannot be completely formed on the glass to be processed, and therefore, The molding effect of the device is not good, which leads to problems such as unstable quality of the finished product and increased manufacturing cost.

In view of the above, it is necessary to provide a three-dimensional glass forming apparatus and a molding method thereof which have a good molding effect and thereby improve the quality of the finished product and reduce the manufacturing cost.

A three-dimensional glass forming device of the present invention comprises a fixed mold and a pressing mold disposed above the fixed mold, the fixed mold comprising a molding cavity recessed on the top surface and a plurality of connecting mold cavities A gas flow path, the pressing mold is movable toward the fixed mold, and the shape of the pressing mold is matched with the molding cavity.

A three-dimensional glass forming method of the present invention comprises the following steps: Step 1: placing a piece of two-dimensional glass on a fixed mold, the fixed mold comprising a molding cavity recessed on the top surface and a plurality of connecting mold cavities a first gas flow path, wherein the two-dimensional glass is disposed on the molding cavity; and step two: heating the fixed mold to raise the temperature of the two-dimensional glass to a first temperature, and simultaneously, through the first gas flow The channel provides a suction force to the two-dimensional glass; step three: moving a pressing mold disposed above the fixed mold toward the fixed mold, the shape of the pressing mold is matched with the molding cavity to squeeze Press the two-dimensional glass.

Compared with the prior art, the three-dimensional glass forming device and the molding method thereof of the present invention can cooperate with the molding cavity by the appearance of the pressing die, and when the pressing die presses the two-dimensional glass in heating, The two-dimensional glass is more closely attached to the molding cavity, and at the same time, a three-dimensional glass product having a better molding effect is formed by the suction of the first gas flow paths.

1‧‧‧Fixed mould

11‧‧‧Forming cavity

12‧‧‧First gas flow path

2‧‧‧Pressure mould

21‧‧‧ body

22‧‧‧ convex

23‧‧‧Second gas flow path

31~35‧‧‧Steps

9‧‧‧2D glass

1 is a schematic view showing a first embodiment of a three-dimensional glass forming apparatus according to the present invention; FIG. 2 is a schematic view showing the operation of the first embodiment; FIG. 3 is a second embodiment of the three-dimensional glass forming apparatus of the present invention. Fig. 4 is a schematic view showing the operation of the second embodiment; Fig. 5 is a block diagram showing the flow of the three-dimensional glass forming method of the present invention.

The present invention will be specifically described below with reference to the accompanying drawings.

Referring to FIG. 1, a first embodiment of a three-dimensional glass forming apparatus according to the present invention includes a fixed mold 1 and a press mold 2 disposed above the fixed mold 1.

The fixed mold 1 includes a molding cavity 11 recessed on the top surface and a plurality of first gas flow passages 12 communicating with the molding cavity 11, and the molding cavity 11 has a microstructure formed on the surface (in the figure) Not shown).

The press mold 2 includes a body 21 and a convex portion 22 protruding from the body 21 toward the fixed mold 1, and the shape of the convex portion 22 corresponds to the molding cavity 11.

In actual operation, a piece of two-dimensional glass 9 is placed on the fixed mold 1 and covers the molding cavity 11, and then the fixed mold 1 is heated to raise the temperature of the two-dimensional glass 9 to soften and adhere to the molding die. At the same time, the first gas passage 12 is provided with a suction force to the two-dimensional glass 9. Referring to FIG. 2, the press mold 2 is moved in the direction of the fixed mold 1, so that the convex portion 22 is opposite. Approximating the molding cavity 11 to press the two-dimensional glass 9 so that the two-dimensional glass 9 is more closely attached to the molding cavity 11, and the microstructure of the surface of the molding cavity 11 is formed in the two-dimensional Glass 9. Finally, the two-dimensional glass 9 is cooled to form a three-dimensional glass article of good quality.

Referring to FIG. 3 and FIG. 4, a second embodiment of a three-dimensional glass forming apparatus according to the present invention is similar to the first embodiment. The main difference is that in the second embodiment, the pressing mold 2 further includes a plurality of second gas flow passages 23 extending through the convex portion 22, so that a heating gas can be ejected through the second gas flow passages 23 to the two-dimensional glass 9 during the molding process, so that the two-dimensional glass 9 is further It is closely attached to the molding cavity 11, and as such, the effect of improving the molding quality is also achieved.

Referring to Figures 3 to 5, the three-dimensional glass forming method of the present invention will be described below, and the three-dimensional glass forming method comprises the following steps.

Step 31: placing a piece of two-dimensional glass 9 on a fixed mold 1 , wherein the fixed mold 1 includes a molding cavity 11 recessed in the top surface and a plurality of first gas flow paths 12 communicating with the molding cavity 11 And the two-dimensional glass 9 is covered in the molding cavity 11.

Step 32: heating the fixed mold 1 to raise the temperature of the two-dimensional glass 9 to a first temperature, and at the same time, providing a suction force to the two-dimensional glass 9 via the first gas flow paths 12.

Step 33: moving a pressing mold 2 disposed above the fixed mold 1 toward the fixed mold 1, and the outer shape of the pressing mold 2 is matched with the molding cavity 11 to press the two-dimensional glass. 9. The two-dimensional glass 9 is closely attached to the molding cavity 11. The pressing die 2 includes a body 21, a convex portion 22 protruding from the body 21 toward the fixed mold 1, and a plurality of second gas flow passages 23 extending through the convex portion 22, and the convex portion 22 The outer shape corresponds to the molding cavity 11. During the pressing of the two-dimensional glass 9 by the pressing mold 2, a pressurized gas heated to a second temperature is sprayed through the second gas flow path 23 to the two-dimensional glass 9, and the pressurized gas The pressure is between 10 psi and 20 psi. It is worth mentioning that the first temperature and the second temperature are in a temperature range, and the temperature range is such that the viscosity of the glass is between 10 ⁷ poise and 10 ¹¹ poise.

Step 34: Cooling the fixed mold 1 and the press mold 2.

Step 35: ejecting a pressurized gas at a third temperature to the two-dimensional glass 9 via the second gas flow passages 23 to form the two-dimensional glass 9 into a three-dimensional glass article, wherein the third temperature is lower than The first temperature and the second temperature accelerate the cooling of the two-dimensional glass 9.

The three-dimensional glass forming device of the present invention and the molding method thereof, the outer shape of the convex portion 22 of the pressing mold 2 is matched with the molding cavity 11, and when the pressing mold 2 is pressed to heat the two-dimensional glass At 9 o'clock, the two-dimensional glass 9 can be more closely attached to the molding cavity 11, and at the same time, the suction force generated by the first gas flow path 12 and the second gas flow path 23 are ejected. Heating the gas can effectively improve the quality stability of the three-dimensional glass product, thereby reducing the manufacturing cost.

It should be noted that the above-described embodiments are merely preferred embodiments of the present invention, and those skilled in the art can make other changes within the spirit of the present invention. All changes made in accordance with the spirit of the invention are intended to be included within the scope of the invention.

1‧‧‧Fixed mould

11‧‧‧Forming cavity

12‧‧‧First gas flow path

2‧‧‧Pressure mould

21‧‧‧ body

22‧‧‧ convex

9‧‧‧2D glass

Claims (10)

A three-dimensional glass forming device comprising a fixed mold and a pressing mold disposed above the fixed mold, the fixed mold comprising a molding cavity recessed on the top surface and a plurality of first gas streams communicating with the molding cavity The first gas flow path provides a suction force, the pressing mold is movable toward the fixed mold, and the shape of the pressing mold is matched with the molding cavity, and the pressing mold further comprises a plurality of A second gas flow path ejecting a pressurized gas heated to a second temperature, the pressure of the pressurized gas being between 10 psi and 20 psi. The three-dimensional glass forming apparatus according to claim 1, wherein the pressing mold comprises a body and a convex portion protruding from the body toward the fixed mold, and the shape of the convex portion corresponds to the molding cavity. The three-dimensional glass forming apparatus according to claim 2, wherein the second gas flow path penetrates the convex portion. The three-dimensional glass forming apparatus according to any one of claims 1 to 3, wherein the molding cavity has a microstructure formed on a surface. A three-dimensional glass forming method comprises the steps of: (a) placing a piece of two-dimensional glass on a fixed mold, the fixed mold comprising a molding cavity recessed on the top surface and a plurality of first gases communicating with the molding cavity a flow path, the first gas flow path provides a suction force, the two-dimensional glass cover is disposed on the molding cavity; (b) heating the fixed mold to raise the temperature of the two-dimensional glass to a first temperature, and at the same time, via The first gas flow path provides a suction force to the two-dimensional glass; and (c) a pressing mold disposed above the fixed mold is moved toward the fixed mold, the shape of the pressure mold and the molding The cavity is matched to squeeze the two-dimensional glass, and the pressing die further includes several channels A second gas flow path ejects a pressurized gas heated to a second temperature, the pressure of the pressurized gas being between 10 psi and 20 psi. The three-dimensional glass forming method according to claim 5, wherein in the step (c), the pressing mold comprises a body and a convex portion protruding from the body toward the fixed mold, the shape of the convex portion Corresponding to the molding cavity. The three-dimensional glass forming method according to claim 6, wherein in the step (c), the second gas flow path penetrates the convex portion. The three-dimensional glass forming method according to claim 7, wherein in the step (c), during the pressing of the two-dimensional glass by the pressing mold, a heating is performed to the second through the second gas flow paths. Pressurized gas at temperature. The three-dimensional glass forming method according to claim 7 or 8, further comprising the step of: (d) cooling the fixed mold and the pressing mold. The three-dimensional glass forming method of claim 9, further comprising the steps of: (e) ejecting a pressurized gas at a third temperature to the two-dimensional glass via the second gas flow paths, and the third temperature is low At the first temperature and the second temperature.