KR101175679B1 - An apparatus for making a touch screen glass and a method thereof - Google Patents

Abstract

PURPOSE: A glass manufacturing device is provided to enhance surface roughness and light transmissivity by using a pair of molds respectively having curvature parts. CONSTITUTION: A glass manufacturing device comprises a pair of molds(110,120) and one or more heating tools(130). The pair of molds forms curvature parts on the glass for touch screen by having cavities. One or more heating tools heats the glass for touch screen. One or more heating tools are arranged along the circumference of the pair of molds. The glass manufacturing device additionally includes a control unit(140) which selectively operates the heating tools. The pair of molds comprises an upper mold(120) and a lower mold(110). The upper mold has a curvature part on the lower surface. The lower mold has the curvature part corresponding to the upper mold.

Description

An apparatus for making a touch screen glass and a method

The present invention relates to a glass manufacturing apparatus and a manufacturing method.

Recently, demand for electronic devices such as smartphones and tablet PCs is increasing rapidly. Most of these electronic devices use a touch screen method. In general, a touch panel for an electronic device including a touch screen is classified into a resistive type, a capacitive type, an electro-magnetic type, and an infrafed type. . Among them, the resistive film type and the capacitive type are mainly used for portable electronic devices such as smartphones and tablet PCs.

On the other hand, touch panels of such electronic devices are generally manufactured in flat form and used. However, as the designs of electronic devices are diversified, various types of touch panels are required, and the glass used in the touch panels also needs various forms. In particular, there is an increasing demand for glass having a curvature surface in order to improve aesthetic characteristics of products and to improve touch and display characteristics.

In the case of a glass having a curvature surface, a flat glass is generally manufactured by using a grinding method in which a glass is shaved using a grinding wheel. However, such a grinding process is difficult to make the surface roughness and the light transmittance constant of the glass, and scratches or breakages of the glass were often caused during the manufacturing process. In addition, the grinding process takes a long time there was a problem of low productivity.

Accordingly, the present invention is to provide a glass manufacturing apparatus and a manufacturing method that can improve the productivity.

Another technical problem to be achieved by the present invention is to provide a glass manufacturing apparatus and method for manufacturing a glass having excellent surface roughness.

Another technical problem to be achieved by the present invention is to provide a glass manufacturing apparatus and a manufacturing method capable of manufacturing a glass having excellent light transmittance.

The technical objects of the present invention are not limited to the above-mentioned technical problems, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

Glass manufacturing apparatus according to an embodiment of the present invention is a glass manufacturing apparatus for manufacturing a glass for a touch screen, a pair of molds are formed to form a cavity for inclination so that the glass for the touch screen has a curvature, and the touch At least one heating means for heating the glass for the screen, wherein the at least one heating means is disposed along the circumference of the pair of molds.

In one embodiment, it may further include a control unit for selectively operating the at least one heating means.

In one embodiment, the pair of molds may include an upper mold having a curvature on a lower surface, and a lower mold having a curvature corresponding to the upper mold on a surface facing the upper mold.

In one embodiment, the lower surface of the upper mold may have a curvature that the height from the lower mold is increased toward both edges with respect to the center.

In an embodiment, the lower surface of the upper mold may have a central curvature, and at least one edge portion of both edges of the central mold may have a curvature of increasing height from the lower mold toward the edge portion.

In one embodiment, the at least one heating means is disposed in the vertical direction, the upper end of the at least one heating means may extend to the same level as the lower mold or higher than the lower mold.

In one embodiment, the heating means may be a heat pipe.

In one embodiment, the heating means may each be capable of adjusting the heating temperature.

Glass manufacturing apparatus according to another embodiment of the present invention in the glass manufacturing apparatus for manufacturing the glass used for the touch screen, the lower mold on which the glass for the touch screen is disposed on the upper surface, pressing the glass for the touch screen An upper mold, and at least one heating means for heating the glass for the touch screen, wherein the at least one heating means is disposed outside the chamber to supply heat to the chamber, and the lower surface of the upper mold It has a curvature that increases in height toward both edge regions with respect to the center region.

In the glass manufacturing method according to an embodiment of the present invention, in the glass manufacturing method for manufacturing the glass for the touch screen, the step of loading the glass for the touch screen in the lower mold having a curvature on the upper surface, the glass for the touch screen Heating and softening using at least one heating means, and pressing the glass for the touch screen using an upper mold having a curvature corresponding to the lower mold, wherein the glass for the touch screen is a central portion. It is formed to have a convex surface on the basis of.

In one embodiment, the step of heating may heat at least one end of the opposite ends of the glass for the touch screen using the at least one heating means.

In an embodiment, the method may further include post-processing the at least one end of the opposite ends of the touch screen glass pressed using the upper mold to have a constant curvature.

In an embodiment, the method may further include cooling the glass for the touch screen, and horizontally grinding one surface of the glass for the touch screen.

According to one embodiment of the present invention can improve the productivity of the glass.

According to one embodiment of the present invention, it is possible to manufacture a glass having excellent surface roughness. In addition, it is possible to produce glass having excellent light transmittance.

According to an embodiment of the present invention it is possible to reduce the breakage or scratch of the glass in the manufacturing process.

1 is a cross-sectional view showing the structure of a glass manufacturing apparatus according to an embodiment of the present invention.
Figure 2a and 2b is an enlarged view of one operation of the glass manufacturing apparatus according to an embodiment of the present invention.
Figure 3 shows the structural change of the glass by each process of the glass manufacturing method according to an embodiment of the present invention.
Figure 4 is a plan view of the lower mold and the heat source of the glass manufacturing apparatus according to an embodiment of the present invention.
5 is a cross-sectional view showing the structure of a glass manufacturing apparatus according to another embodiment of the present invention.
6 is a cross-sectional view showing the structure of a glass manufacturing apparatus according to another embodiment of the present invention.
7A and 7B are enlarged views of one operation of the glass manufacturing apparatus according to another embodiment of the present invention.
Figure 8 shows the structural change of the glass by each process of the glass manufacturing method according to another embodiment of the present invention.
9 is a cross-sectional view showing the structure of a glass manufacturing apparatus according to another embodiment of the present invention.
10A and 10B are enlarged views of one operation of the glass manufacturing apparatus according to another embodiment of the present invention.
Figure 11 shows the structural change of the glass by each process of the glass manufacturing method according to another embodiment of the present invention.

In the following, a number of various embodiments, or examples of implementing various features of the invention are provided. Specific examples and arrangements for the devices are described to simplify the present invention. These are merely examples and are not to be construed in a limiting sense. In addition, the present invention repeats the drawing identifiers and / or letters in the various examples. This repetition is used for the purpose of simplicity and clarity and is not specified for the relationship between the various embodiments and / or configurations discussed.

In addition, throughout the specification, when a part is said to "include" a certain component, which means that it may further include other components, without excluding other components, unless specifically stated otherwise, a specific configuration The phrases, such as when elements are connected to, connected to, and / or coupled to other components, may include embodiments in which two components are directly connected, and additionally, another component may be placed between the two components. It is also possible to include embodiments in which the two components are arranged so that the two components are not directly connected. Also, if terms referring to first, second, etc. can be used herein to describe various components, it will be understood that the components are not limited to these terms. These terms are only used to distinguish one component from another.

One embodiment of the present invention relates to a glass manufacturing apparatus and a manufacturing method, and more particularly to a touch screen glass manufacturing apparatus and a manufacturing method.

Hereinafter, a glass manufacturing apparatus and a manufacturing method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

≪ Example 1 >

1 is a cross-sectional view showing the structure of a glass manufacturing apparatus according to an embodiment of the present invention. 1, the glass manufacturing apparatus according to an embodiment of the present invention may include an upper mold 120, a lower mold 110, at least one heating means 130 and the control unit 140. The upper mold 120, the lower mold 110, and the at least one heating means 130 may be disposed in the chamber 100.

Although not shown in the drawing, the glass 10 for the touch screen may be transferred into the chamber 100 from the outside through a transfer roller. The touch screen glass 10 may be, for example, tempered glass. The glass transferred into the chamber 100 will be loaded onto the lower mold 110. The touch screen glass 10 may be disposed directly on the upper surface of the lower mold 110. In addition, the lower mold 110 may be spaced apart from the upper surface. Meanwhile, in one embodiment, the glass manufacturing apparatus may further include a fixing part for fixing the glass for the touch screen disposed on the lower mold 110. The fixing part may be composed of a fixing frame. That is, when the touch screen glass 10 is loaded into the chamber 100, the fixing part will fix the glass 10 for the touch screen. Hereinafter, the glass 10 for touch screens is called glass 10.

On the other hand, the support frame 112 of the lower mold 110 may be disposed at both ends of the lower mold 110 facing each other. The support frame 112 may extend to the same level or higher than the upper surface 111 of the lower mold 110. In addition, the support frame 112 may extend to the same or lower level than the top of the heating means 130. The upper surface 111 of the lower mold 110 may be formed with a curvature 111. This is for shaping the glass 10 into a curvature type. The curvature may have a shape corresponding to the curvature 121 of the lower surface of the upper mold 120 to be described later. The corresponding shape may mean that the curvature of the upper surface 111 of the lower mold 110 and the curvature of the lower surface 121 of the upper mold 120 are the same.

The upper mold 120 may be configured such that the upper surface thereof is connected to the lifting piston 150 to move upward and downward. In detail, the upper mold 120 has a central portion of the upper surface connected to the lifting piston 150, and the lifting piston 150 lifts or lowers the upper mold 120 while repeating entry and exit into the lifting frame 151. Can be lowered. When the lifting piston 150 completely escapes from the lifting frame 151, the lower surface 121 of the upper mold 120 is a cavity for forming the upper surface 111 and the glass 10 of the lower mold 110. It can form a cavity. That is, the cavity may mean a space formed between the upper mold 120 and the lower mold 110 when the upper mold 120 descends to press the glass 10.

In this case, the lower surface 121 of the upper mold 120 and the upper surface 111 of the lower mold 110 may be spaced apart from each other at intervals smaller than the thickness of the glass 10. This is to press the glass 10 so that the upper mold 120 is lowered so that one side or both sides of the glass 10 have a curvature. When the elevating piston 150 is in contact with the upper end of the elevating frame 151, that is, when the elevating piston 150 is completely immersed into the elevating frame 151, the upper mold 120 is elevated to form the upper mold ( The upper surface of the 120 may be positioned to contact the upper frame of the chamber 100. On the other hand, the upper surface of the upper mold 120 may be located spaced apart from the upper frame of the chamber 100 by a predetermined interval. The lower surface 121 of the upper mold 120 may have a curvature such that the height from the lower mold 110 increases toward both edges of the upper mold 120. That is, the lower surface 121 of the upper mold 120 may have a convex shape and may have a curvature as a whole.

At least one heating means 130 may be disposed along the circumference of the lower mold 110 in the chamber 100. For example, the at least one heating means 130 may be arranged one by one along four sides of the lower mold 110 when the lower mold 110 has a rectangular shape. The heating means 130 may be disposed spaced apart from the lower mold 110 by a predetermined interval. Heating means 130 is disposed in the vertical direction, the upper end may be the same as the support frame 112 of the lower mold 110 or extend to a level higher than the support frame 112. The heating means 130 may illustratively be a heat pipe. The heating means 130 may heat the glass 10 to a temperature of 500 ℃ to 1300 ℃. The heated glass 10 is softened and will be molded into a curvature form by pressing the upper mold 120.

The controller 140 may adjust the heating temperatures of the at least one heating means 130, respectively. For example, the controller 140 controls to apply heat to the glass 10 by operating only two heating means 130 when there are four heating means 130 arranged along the circumference of the lower mold 110. can do. In addition, the two heating means 130 may be controlled to operate at 500 ℃, the other two heating means 130 at a heating temperature of 1000 ℃. In addition, the heating temperature of the four heating means 130 may be controlled to 500 ° C., 700 ° C., 900 ° C., and 1300 ° C., respectively, to heat the glass 10 at different heating temperatures. The controller 140 may be disposed outside the chamber 100, and may be connected to the heating means 130 by wire or wirelessly to perform a control operation.

Figure 2a and 2b is an enlarged view of one operation of the glass manufacturing apparatus according to an embodiment of the present invention.

As shown in FIGS. 2A and 2B, the upper surface 111 of the lower mold 110 may have a curvature corresponding to the lower surface 121 of the upper mold 120. Specifically, the curvature of the upper surface 111 of the lower mold 110 and the curvature of the lower surface 121 of the upper mold 120 may be the same. The glass 10 heated by the at least one heating means 130 may be formed between the upper mold 120 and the lower mold 110 through the lowering operation of the upper mold 120. The glass 10 may be molded to have the same curvature as the upper mold 120 and the lower mold 110. The upper mold 120 will be lifted again by the lifting piston 150 after pressing the glass 10 for a predetermined time.

Figure 3 shows the change of the glass by each process of the glass manufacturing method according to an embodiment of the present invention.

Referring to FIG. 3, the glass 10 may be in the form of a rectangular parallelepiped. The upper surface of the glass 11 may be molded to have the same curvature as the lower surface 121 of the upper mold 120. The lower surface of the glass 11 may be molded to have the same curvature as the upper surface 111 of the lower mold 110. On the other hand, the glass 11 formed in a curvature form may be cooled through the cooling means. The cooling means may cool the glass 11 by using a water cooling or air cooling cooling method. This is to prevent the deformation of the glass 11.

Figure 4 is a plan view of the lower mold and the heating means of the glass manufacturing apparatus according to an embodiment of the present invention. As shown in Figure 4, the heating means 130 of the glass manufacturing apparatus according to an embodiment of the present invention may be disposed along the circumference of the lower mold (110). As described above, since the operation of each of the heating means 130 can be controlled through the controller 140, each part of the glass 10 may be selectively heated. For example, the glass 10 having a curvature shape may be manufactured by molding the glass 10 having a rectangular shape. In addition, only one of A and B can be produced having a curvature form. Furthermore, since the temperature of each of the heating means 130 can be adjusted, a glass having a desired curvature can be manufactured by adjusting the temperature of all or part of the heating means 130.

As described above, the glass manufacturing apparatus according to an embodiment of the present invention may include at least one heating means (130). In addition, since the operation and / or heating temperature control of each heating means 130 is possible, it is possible to manufacture a glass having a desired curvature.

<Example 2>

The glass manufacturing apparatus and the manufacturing method according to the second embodiment of the present invention may include all the contents described in the first embodiment. Meanwhile, in order to avoid duplication of description, the description of the same configuration or the same method will be omitted. The same reference numerals may indicate the same configuration.

5 is a cross-sectional view showing the structure of a glass manufacturing apparatus according to an embodiment of the present invention. 5, the glass manufacturing apparatus according to an embodiment of the present invention may include an upper mold 120, a lower mold 110, at least one heating means 130 and the control unit 140. The upper mold 120 and the lower mold 110 may be disposed in the chamber 100. Unlike the first embodiment in the present embodiment, at least one heating means 130 may be disposed outside the chamber 100 to supply heat into the chamber 100.

Although not shown in the drawing, the glass 10 may be transferred into the chamber 100 from the outside through a transfer roller. The glass 10 may be for example tempered glass. The glass transferred into the chamber 100 will be loaded onto the lower mold 110. The upper surface 111 of the lower mold 110 may be formed with a curvature 111. This is for shaping the glass 10 into a curvature type. The curvature may have a shape corresponding to the curvature 121 of the lower surface of the upper mold 120 to be described later. The corresponding shape may mean that the curvature of the upper surface 111 of the lower mold 110 and the curvature of the lower surface 121 of the upper mold 120 are the same. The lower surface 121 of the upper mold 120 may have a curvature such that the height from the lower mold 110 increases toward both edges of the upper mold 120. That is, the lower surface 121 of the upper mold 120 may have a convex shape and may have a curvature as a whole. The controller 140 may adjust the heating temperatures of the at least one heating means 130, respectively. The controller 140 may be disposed outside the chamber 100, and may be connected to the heating means 130 by wire or wirelessly to perform a control operation.

That is, in Embodiment 2, at least one heating means 130 may be disposed outside the chamber 100 to supply heat into the chamber 100. The heating means 130 may maintain the temperature inside the chamber 100 as a whole at 500 ° C to 1300 ° C. The glass 10 may be softened and molded into a curvature form by pressing the upper mold 120. Therefore, breakage or scratch of the glass 10 during the manufacturing process can be reduced.

<Example 3>

The glass manufacturing apparatus and the manufacturing method according to the third embodiment of the present invention may include all the contents described in the first embodiment. Meanwhile, in order to avoid duplication of description, the description of the same configuration or the same method will be omitted. The same reference numerals may indicate the same configuration.

6 is a cross-sectional view showing the structure of a glass manufacturing apparatus according to an embodiment of the present invention. 6, the glass manufacturing apparatus according to an embodiment of the present invention may include an upper mold 220, a lower mold 210, at least one heating means 230 and the controller 240. The upper mold 220, the lower mold 210, and the at least one heating means 230 may be disposed in the chamber 200. Although not shown in the drawing, the glass 20 may be transferred into the chamber 200 from the outside through a transfer roller. Glass 20 may illustratively be tempered glass. The glass transferred into the chamber 200 will be loaded onto the lower mold 210. The upper surface 211 of the lower mold 210 may be formed with a curvature. This is to mold the glass 20 to have a curvature form. The curvature may have a shape corresponding to the curvature of the lower surface of the upper mold 220 to be described later. The corresponding shape may mean that the curvature of the upper surface 211 of the lower mold 210 and the curvature of the lower surface 221 of the upper mold 220 are the same. The lower surface 221 of the upper mold 220 may have a flat center, and both edges thereof may have a curvature such that a height from the lower mold 210 increases toward both edges. That is, in Embodiment 3, unlike Embodiments 1 and 2, the lower surface 221 of the upper mold 220 may have a curvature partially at both edges. Therefore, in the present embodiment, the glass 20 may be molded in a shape having a central curvature and a curvature surface only partially at both edge portions thereof facing the central part.

At least one heating means 230 may be disposed along the circumference of the lower mold 210 in the chamber 200. The heating means 230 may be disposed spaced apart from the lower mold 210 by a predetermined interval. Heating means 230 is disposed in the vertical direction, the upper end may be the same as the support frame 212 of the lower mold 210 or extend to a level higher than the support frame 212. The heating means 230 may illustratively be a heat pipe. The heating means 230 may heat the glass 20 to a temperature of 500 ℃ to 1300 ℃. The heated glass 20 is softened and will be molded into a curvature form by pressing the upper mold 220. The controller 240 may adjust the heating temperatures of the at least one heating means 230, respectively. The controller 240 may be disposed outside the chamber 200, and may be connected to the heating means 230 by wire or wirelessly to perform a control operation.

7A and 7B are enlarged views of one operation of the glass manufacturing apparatus according to the embodiment of the present invention. As shown in FIGS. 7A and 7B, the upper surface 211 of the lower mold 210 may have a curvature corresponding to the lower surface 221 of the upper mold 220. Specifically, the curvature of both edges of the upper surface 211 of the lower mold 210 and the curvature of both edges of the lower surface 221 of the upper mold 220 may be the same. The glass 20 heated by the at least one heating means 230 may be formed between the upper mold 220 and the lower mold 210 through the pressurization of the upper mold 220. The glass 20 may be molded to have the same curvature as the upper mold 220 and the lower mold 210. The upper mold 220 will be lifted again by the lifting piston 250 after pressing the glass 20 for a predetermined time.

Figure 8 shows the change of the glass by each process of the glass manufacturing method according to an embodiment of the present invention. Referring to FIG. 8, the glass 20 may be in the form of a rectangular parallelepiped. The upper surface of the glass 21 may be molded to have the same curvature as the lower surface 121 of the upper mold 220. The lower surface of the glass 21 may be molded to have the same curvature as the upper surface 211 of the lower mold 210.

As described above, the glass manufacturing apparatus according to an embodiment of the present invention may include at least one heating means (230). In addition, since the operation and / or heating temperature of each of the heating means 230 is possible, it is possible to manufacture a glass having a desired curvature.

<Example 4>

The glass manufacturing apparatus and the manufacturing method according to the fourth embodiment of the present invention may include all the contents described in the first embodiment. Meanwhile, in order to avoid duplication of description, the description of the same configuration or the same method will be omitted. The same reference numerals may indicate the same configuration.

9 is a cross-sectional view showing the structure of a glass manufacturing apparatus according to another embodiment of the present invention. 9, the glass manufacturing apparatus according to an embodiment of the present invention may include an upper mold 320, a lower mold 310, at least one heating means 330, and a controller 340. The upper mold 320, the lower mold 310 and the at least one heating means 330 may be disposed in the chamber 300. At least one heating means 330 may be disposed along the circumference of the lower mold 310 in the chamber 300. The heating means 330 may be disposed spaced apart from the lower mold 310 by a predetermined interval. Heating means 330 is disposed in the vertical direction, the upper end may be the same as the support frame 312 of the lower mold 310 or extend to a level higher than the support frame 312. The heating means 330 may be a heat pipe by way of example. The heating means 330 may heat the glass 30 to a temperature of 500 ℃ to 1300 ℃. The heated glass 30 is softened and will be molded into a curvature form by pressing the upper mold 320. The controller 340 may adjust the heating temperature of the at least one heating means 330, respectively. The controller 340 may be disposed outside the chamber 300, and may be connected to the heating means 330 by wire or wirelessly to perform a control operation.

The upper surface 311 of the lower mold 310 may be formed with a curvature. This is to mold the glass 30 to have a curvature form. The curvature may have a shape corresponding to the curvature of the lower surface of the upper mold 320 to be described later. The corresponding shape may mean that the curvature of the upper surface 311 of the lower mold 310 and the curvature of the lower surface 321 of the upper mold 320 are the same. The lower surface 321 of the upper mold 320 may have a central portion, and may have a curvature such that an edge portion of either edge portion of the upper mold 320 increases from the lower mold 310 toward the edge portion. That is, in Embodiment 4, unlike Embodiments 1 to 3, the lower surface 321 of the upper mold 320 may have a curvature at any one edge portion of both edge portions. Therefore, in the present embodiment, the glass 30 may be formed in a shape having a central curvature and a curvature surface partially at only one edge portion of both edge portions facing the center portion.

10A and 10B are enlarged views of one operation of the glass manufacturing apparatus according to the embodiment of the present invention. As shown in FIGS. 10A and 10B, the upper surface 311 of the lower mold 310 may have a curvature corresponding to the lower surface 321 of the upper mold 320. Specifically, the curvature of both edges of the upper surface 311 of the lower mold 310 and the curvature of both edges of the lower surface 321 of the upper mold 320 may be the same. The glass 30 heated by the at least one heating means 330 may be formed between the upper mold 320 and the lower mold 310 by pressing the upper mold 320. The glass 30 may be molded to have the same curvature as the upper mold 320 and the lower mold 310. The upper mold 320 will be lifted again by the lifting piston 350 after pressing the glass 30 for a predetermined time.

Figure 11 shows the change of the glass by each process of the glass manufacturing method according to an embodiment of the present invention. Referring to FIG. 11, the glass 30 may be in the form of a rectangular parallelepiped. The upper surface of the glass 31 may be molded to have the same curvature as the lower surface 321 of the upper mold 320. The lower surface of the glass 31 may be molded to have the same curvature as the upper surface 311 of the lower mold 310. That is, the glass 31 may be formed in a shape having a central curvature and a curvature surface partially at only one edge portion of both edge portions facing the center portion.

As described above, the glass manufacturing apparatus according to an embodiment of the present invention can control the operation and / or heating temperature of at least one heating means 330, respectively, both sides of the glass 30, as well as both sides The curvature can be formed by selectively applying heat only to one of the edges.

The glass manufacturing apparatus and manufacturing method according to the embodiments of the present invention mentioned above can reduce the breakage or scratch of the glass in the manufacturing process. In addition, glass having excellent surface roughness and excellent light transmittance can be produced. Furthermore, the glass according to the embodiments of the present invention may be used in an electronic device using a touch panel such as a mobile phone, a PDA, a tablet PC, an MP3, or an MP4. Specifically, it may be used as a cover glass of the touch screen.

In the present invention as described above has been described by the specific embodiments, such as specific components and limited embodiments and drawings, but this is provided to help a more general understanding of the present invention, the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from these descriptions.

Therefore, the spirit of the present invention should not be limited to the embodiments described, and all the things that are equivalent to or equivalent to the scope of the claims as well as the following claims will belong to the scope of the invention.

100, 200, 300: chamber
10, 20, 30: glass
110, 210, 310: lower mold
120, 220, 320: upper mold
130, 230, 330: heating means
140, 240, 340: control unit
111, 211, 311: upper surface of lower mold
121, 221, 321: lower surface of the upper mold
112, 212, 312: support frame
150, 250, 350: lifting piston
151, 251, 351: lifting frame

Claims (13)

In the glass manufacturing apparatus for manufacturing the glass for the touch screen,
A pair of molds in which a cavity for forming the glass for touch screen has a curvature is formed; And
At least one heating means for heating the glass for the touch screen,
The at least one heating means is a glass manufacturing apparatus, characterized in that disposed along the circumference of the pair of molds. The method according to claim 1,
Glass manufacturing apparatus further comprises a control unit for selectively operating the at least one heating means. The method according to claim 1,
The pair of molds
An upper mold having a curvature on a lower surface thereof; And
Glass manufacturing apparatus comprising a lower mold having a curvature corresponding to the upper mold on the surface facing the upper mold. The method of claim 3,
The lower surface of the upper mold is a glass manufacturing apparatus, characterized in that it has a curvature that the height from the lower mold is higher toward both edges relative to the center. The method of claim 3,
The lower surface of the upper mold has a central portion is flat, the glass manufacturing apparatus, characterized in that the at least one edge portion of both edge portions of the central portion has a curvature that the height from the lower mold increases toward the edge portion. The method of claim 3,
The at least one heating means is arranged in the vertical direction, the upper end of the at least one heating means glass manufacturing apparatus, characterized in that extending to the same level as the lower mold or higher than the lower mold. 6. The method of claim 5,
The heating means is a glass manufacturing apparatus, characterized in that the heat pipe (heat pipe). The method according to any one of claims 1 to 7,
The heating means is a glass manufacturing apparatus, characterized in that the heating temperature control respectively. In the glass manufacturing apparatus for manufacturing the glass for the touch screen,
A lower mold having the touch screen glass disposed on an upper surface thereof;
An upper mold for pressing the glass for the touch screen; And
At least one heating means for heating the glass for the touch screen,
The at least one heating means is disposed outside the chamber to supply heat to the chamber, wherein the lower surface of the upper mold has a curvature of the height increases toward both edge regions relative to the center region . In the glass manufacturing method for manufacturing a glass for touch screen,
Loading the glass for the touch screen on a lower mold having a curvature on an upper surface thereof;
Heating and softening the glass for the touch screen using at least one heating means; And
Pressing the glass for the touch screen using an upper mold having a curvature corresponding to the lower mold,
The glass for the touch screen is characterized in that the glass manufacturing method characterized in that it is formed to have a convex surface on the basis. The method of claim 10,
The heating step is a glass manufacturing method characterized in that for heating at least one end of the opposite ends of the glass for the touch screen using the at least one heating means. The method of claim 10,
And post-processing the at least one end of the opposite ends of the touch screen glass pressed using the upper mold to have a constant curvature. The method of claim 10,
Cooling the glass for the touch screen; And
Glass grinding method further comprising the step of horizontally grinding one surface of the glass for the touch screen.

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