TWI535670B - Mold and cover glass made by mold and processing method thereof - Google Patents

Description

Mold and glass case and glass case manufacturing method thereof

The present invention relates to a mold and a method of manufacturing the same, and a glass case and a glass case.

Because of its high light transmittance, glass is often used as a display device, such as a window-capable case for electronic products such as mobile phones. A flat glass housing is easier to manufacture, and a glass housing having a three-dimensional shape is relatively difficult to manufacture. At present, there are generally two methods for manufacturing a glass case having a three-dimensional shape: first, a plurality of flat glass units are manufactured, and then a glass case having a three-dimensional shape is formed by adhering the edges. Second, a rectangular parallelepiped glass of a certain thickness is produced, and then polished on the rectangular parallelepiped glass several times to form a three-dimensional shape having a plurality of sides. However, the above two methods are time consuming and labor intensive, and the production speed is slow.

In view of the above, it is necessary to provide a mold, a glass produced from the mold, and a method of producing the glass.

A mold comprising at least two split mold cores made of a porous heat-resistant material, each split mold core comprising a sub-molding surface and a splice surface adjacent to the sub-molding surface, the at least two split mold cores being closely combined with each other Together, the mosaic faces of the at least two split molds are disposed facing each other, and the sub-molding faces of the at least two split molds are joined into a molding surface, and the combined A gap for ventilation is formed between the joint faces of adjacent split molds.

A method of manufacturing a glass casing having a plurality of integrally formed sides, comprising the steps of: providing a mold comprising at least two split mold cores made of a porous heat resistant material, each split mold core Having a sub-forming surface and a splicing surface adjacent to the sub-molding surface; combining the at least two-part mold to face the splicing surface of the at least two-part mold, and splicing the sub-molding surfaces of at least two parting dies into one more a side molding surface, a gap for forming a gas permeable portion between the combined adjacent mold cores; a glass blank is provided, the glass material is placed on the molding surface; and the mold is heated to a glass softening temperature When the at least two-part mold is evacuated, the softened glass blank is attached to the surface of the molding surface; the mold is released and cooled to obtain a glass shell integrally formed with a plurality of sides.

A glass casing manufactured by using the above mold has a plurality of sides, one side of which is a bottom surface of the casing, and the bottom surface of the casing is one of a plane, a convex curved surface, and a concave curved surface, and the other sides surround the The edge of the bottom surface of the housing is inclined with respect to the bottom surface of the housing, and the other side surfaces are also one of a flat surface, a convex curved surface, and a concave curved surface, and the intersection between the different side surfaces forms a rounded corner. The radius of the circle where the rounded corners are between 0.05mm and 0.005mm.

Compared with the prior art, since the mold is composed of a plurality of split mold splicing, the shape of the sub-molding surface of each split mold can be separately designed. Therefore, the mold can be used to manufacture a variety of interlaced curved surfaces and different shapes of components, thereby improving production efficiency.

100‧‧‧Mold

101‧‧‧ molding surface

110, 510‧‧‧ first split model

130, 530‧‧‧Second model

150, 550‧‧‧ third split mold

170, 570‧‧‧ fourth split model

190, 590‧‧‧ fifth split model

111, 511‧‧‧ first sub-forming surface

131, 531‧‧‧Second sub-molding surface

151, 551‧‧‧ third sub-forming surface

171, 571‧‧‧ fourth sub-forming surface

191, 591‧‧‧ fifth sub-forming surface

115‧‧‧First stitching surface

135‧‧‧Second stitching surface

155‧‧‧ third stitching surface

175‧‧‧four stitching surface

195‧‧‧ fifth stitching surface

113‧‧‧First lower surface

133‧‧‧Second lower surface

153‧‧‧ Third lower surface

173‧‧‧ Fourth lower surface

193‧‧‧ fifth lower surface

200‧‧‧Base

210‧‧‧floor

220‧‧‧ side wall

230‧‧‧Loading board

240‧‧‧ accommodating space

300‧‧‧glass blanks

310‧‧‧glass housing

311‧‧‧ first side

313‧‧‧ second side

315‧‧‧ third side

317‧‧‧ fourth side

319‧‧‧ fifth side

1 is a schematic exploded perspective view of a mold in a first embodiment of the present invention.

2 is a perspective view of the mold of FIG. 1 assembled by a base.

3 is a schematic exploded perspective view of a mold in a second embodiment of the present invention.

Figure 4 is a perspective view of the glass blank to be assembled in the assembled mold forming surface of Figure 2.

Figure 5 is a flow chart of a method for molding a multi-sided glass in accordance with the present invention.

Figure 6 is a perspective view of a multi-sided glass made using the mold of Figure 1.

Referring to FIG. 1, the mold 100 includes a plurality of split mold cores. In the first embodiment, there are five split mold cores, which are a first split mold core 110, a second split mold core 130, and a third split mold core 150. The fourth split mold core 170 and the fifth split mold kernel 190. The first split mold core 110, the second split mold core 130, the third split mold core 150 and the fourth split mold core 170 are disposed around the fifth split mold core 190. Each of the first partial mold cores 110, the second partial mold cores 130, the third partial mold cores 150, the fourth partial mold cores 170, and the fifth partial mold cores 190 respectively include a sub-molding surface, that is, the first sub-molding surface 111. The second sub-forming surface 131, the third sub-molding surface 151, the fourth sub-molding surface 171 and the fifth sub-molding surface 191 and at least one splicing surface, that is, the first splicing surface 115, the second splicing surface 135, and the third splicing Face 155, fourth stitching surface 175 and fifth stitching surface 195. In the first embodiment, the joint surface on each of the first split mold core 110, the second split mold core 130, the third split mold core 150, and the fourth split mold core 170 is three disposed on the edge of the sub-molding surface thereof. One side of the continuous setting. The fifth splice surface 195 of the fifth split mold 190 is an annular side surface surrounding the fifth sub-molding surface 191. The first sub-molding surface 111, the second sub-molding surface 131, the third sub-molding surface 151, the fourth sub-molding surface 171, and the fifth sub-molding surface 191 are substantially facing in the same direction, and the first sub-molding surface 111, the second sub-molding surface 131, the third sub-molding surface 151, the fourth sub-molding surface 171 and the fifth sub-molding surface 191 are respectively located in the respective first partial mold core 110, the second partial mold core 130, and the third partial mold. On the top of the 150, the fourth split mold 170 and the fifth split mold 190 surface.

Specifically, each of the first split mold core 110, the second split mold core 130, the third split mold core 150, the fourth split mold core 170, and the fifth split mold core 190 respectively include a lower surface, that is, the first lower surface 113. a second lower surface 133, a third lower surface 153, a fourth lower surface 173, and a fifth lower surface 193. The first lower surface 113, the second lower surface 133, the third lower surface 153, the fourth lower surface 173, and the fifth lower surface 193 are flat surfaces. The first sub-molding surface 111, the second sub-molding surface 131, the third sub-molding surface 151, the fourth sub-molding surface 171, and the fifth sub-molding surface 191 are respectively associated with the first lower surface 113 and the second lower surface 133. The third lower surface 153, the fourth lower surface 173, and the fifth lower surface 193 are oppositely disposed. Each of the first sub-forming surface 111, the second sub-molding surface 131, the third sub-molding surface 151, the fourth sub-molding surface 171, and the fifth sub-molding surface 191 may be selectively opposite to the first lower surface 113 thereof. The second lower surface 133, the third lower surface 153, the fourth lower surface 173, and the fifth lower surface 193 are arranged in parallel or obliquely. In the first embodiment, the first sub-molding surface 111, the second sub-molding surface 131, the third sub-molding surface 151, and the fourth sub-molding surface 171 are planes that are inclined toward the center direction, and the first sub-molding The surface 111, the second sub-molding surface 131, the third sub-molding surface 151, and the fourth sub-molding surface 171 have independent roughness. The fifth sub-forming surface 191 is a convex curved surface. The first split mold core 110 and the third split mold core 150 have the same shape and are disposed on opposite sides of the fifth split mold core 190. The second split mold core 130 is identical in shape to the fourth split mold core 170 and disposed on opposite sides of the fifth split mold core 190.

The mold 100 is made of a porous heat-resistant material. The porous heat-resistant material is selected from one or a combination of hexagonal boron nitride, cerium oxide, aluminum oxide, and hexagonal layer carbon, and the porous heat-resistant material has a density D ranging from 1.5 g / cm ³ D 6.5 g / cm ³ , the porous heat-resistant material maintains a shape in a temperature range of 650 ° C or more and 1600 ° C or less, and the porous heat-resistant material is internally formed with a large number of vent holes which are uniformly distributed and penetrate each other. The size of the aperture d of the venting hole is 2 μm d 0.2 nm .

Referring to FIG. 2, the mold 100 can be fixed together by a base 200. Specifically, the base 200 includes a hollow bottom plate 210, a mesh carrying plate 230 disposed at a hollow portion of the bottom plate 210, and an annular side wall 220 extending perpendicularly from the bottom plate 210 around the carrying plate 230. The accommodating space 240 defined by the annular side wall 220 and the mesh carrying plate 230 is substantially the same as the volume of the mold 100. It can be understood that, in order to facilitate assembly and disassembly of the mold 100, the height of the sidewall 220 may be smaller than the first split mold core 110, the second split mold core 130, the third split mold core 150, and the fourth split mold core 170. The thickness of the location.

During assembly, the first split mold core 110, the second split mold core 130, the third split mold core 150, and the fourth split mold core 170 are disposed around the fifth split mold core 190 under the action of the side wall 220. The splicing faces between adjacent split molds are facing each other. For example, the first mosaic surface 115 faces the second mosaic surface 135, the fourth mosaic surface 175, and the fifth mosaic surface 195. The first sub-molding surface 111, the second sub-molding surface 131, the third sub-molding surface 151, and the fourth sub-molding surface 171 surround and close the edges of the fifth sub-molding surface 191 and are joined to each other to form a molding surface having a plurality of sides. 101. Wherein, the gap between the two split faces after the splitting of the two split mold cores is less than or equal to 0.02 mm to allow gas to pass through. The thickness of the first split mold core 110, the second split mold core 130, the third split mold core 150, and the fourth split mold core 170 away from the fifth split mold core 190 is greater than that near the fifth split mold core 190. The thickness of one side. The assembled mold 100 is disposed in the receiving space 240, the first lower surface 113, the second lower surface 133, the third lower surface 153, and the fourth lower The surface 173 and the fifth lower surface 193 are disposed on the carrier plate 230.

Referring to FIG. 3, in the second embodiment of the present invention, the fifth sub-molding surface 591 of the fifth partial mold core 590 is a flat surface. It can be understood that the fifth sub-molding surface 591 can be a concave curved surface. The shape of the sub-molding surfaces 511, 531, 551, and 571 of the other split mold cores 510, 530, 550, and 570 may be one of a flat surface, a convex curved surface, and a concave curved surface. The two adjacent sub-molding surfaces 511, 531, 551, and 571 are joined together and have an obtuse angle.

Please refer to Figure 4-6 together. The molding method of the mold 100 provided by the present invention includes the following steps: molding in a mold 100 using a glass material in the first embodiment. Wherein, the glass material is one of or a mixture of soda lime glass, aluminosilicate glass, alkali-free glass, and borosilicate.

Step S1. Providing a mold 100 comprising five-part mold cores 110, 130, 150, 170, 190 made of a porous heat-resistant material, each of the mold cores 110, 130, 150, 170, 190 having a sub-molding Faces 111, 131, 151, 171, 191.

Step S2. Combining the five-part mold cores 110, 130, 150, 170, 190 to face the joint faces 115, 135, 155, 175, 195 of the five-part mold cores 110, 130, 150, 170, 190, The five sub-forming faces 111, 131, 151, 171, and 191 are joined to form a molding surface 101 having a plurality of sides, and a gap for venting is formed between the joining faces of the adjacent adjacent parting cores.

Step S3. A glass blank 300 is provided, and the glass blank 300 is placed on the molding surface 101.

At present, due to the size of fixtures such as glass forming furnaces, the length and width of glass blanks can reach 500mm × 800mm; the thickness is 0.3 mm h Between 40 mm . If the size of the fixture is improved, the size of the glass blank is expected to be larger, thicker or smaller, and thinner.

Step S4. After the mold 100 is heated to a glass softening temperature, the five-part mold cores 110, 130, 150, 170, and 190 are evacuated, and the softened glass blank 300 is attached to the surface of the molding surface 101.

The glass blank 300 is placed on the mold 100 and fed together into a glass forming furnace. The glass blank 300 and the mold 100 are simultaneously heated in a furnace; after the temperature reaches the glass softening, the lower surfaces 113, 133, 153, 173, 193 of the five-part molds 110, 130, 150, 170, 190 are subjected to Pumping. A vacuum is formed between the glass/mold by the characteristics of the porous mold material, and the softened glass blank 300 is attached to the molding surface 101. It can be understood that it is more desirable for the pumping effect to cancel the carrier plate 230 and only the side wall 220 to clamp the five-part mold cores 110, 130, 150, 170, 190.

Step S5. Demoulding and cooling to obtain a multi-sided integrally formed glass casing 310, as shown in FIG.

The glass housing 310 has a plurality of continuous sides, a first side 311, a second side 313, a third side 315, a fourth side 317, and a fifth side 319. The connecting portion between the different sides is a turning point, and the ridge line is formed at the turning point. The intersection between the two sides in the actual product, that is, the position where the ridge line is formed, has a rounded corner, and the radius of the circle where the rounded corner is called is called The corner radius is, in the embodiment, the corner radius is between 0.05 mm and 0.005 mm. Each of the first side 311, the second side 313, the third side 315, the fourth side 317, and the fifth side 319 has an independent roughness. If the fifth side surface 319 is used as the bottom surface of the casing, the other first side surface 311, the second side surface 313, the third side surface 315, and the fourth side surface 317 are connected to form an annular shape and surround and close the edge of the bottom surface of the casing.

Since the mold 100 is formed by splicing and combining a plurality of split mold cores 110, 130, 150, 170, 190, the molding faces 111, 131, 151, 171, 191 of the split mold cores 110, 130, 150, 170, 190 The shape and roughness can be designed separately. Therefore, the components manufactured by the mold 100, such as the glass cover and the glass casing, can have a variety of interlaced curved surfaces and different shapes, and the ridge lines between the curved surfaces are clear and detailed, further improving the production efficiency.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

100‧‧‧Mold

110‧‧‧The first part of the mold

130‧‧‧Second model

150‧‧‧third split model

170‧‧‧Fourth model

190‧‧‧The fifth model

111‧‧‧First child forming surface

131‧‧‧Second sub-forming surface

151‧‧‧ Third child forming surface

171‧‧‧Fourth forming surface

191‧‧‧ fifth sub-forming surface

115‧‧‧First stitching surface

135‧‧‧Second stitching surface

155‧‧‧ third stitching surface

175‧‧‧four stitching surface

195‧‧‧ fifth stitching surface

113‧‧‧First lower surface

133‧‧‧Second lower surface

153‧‧‧ Third lower surface

173‧‧‧ Fourth lower surface

193‧‧‧ fifth lower surface

Claims (20)

A mold comprising at least two split mold cores made of a porous heat-resistant material, each split mold core comprising a sub-molding surface and a splice surface adjacent to the sub-molding surface, the at least two split mold cores being closely combined with each other Together, the mosaic faces of the at least two split molds are disposed facing each other, and the sub-molding faces of the at least two split mold cores are spliced into a molding surface, and the joint faces of the adjacent adjacent split mold cores are formed for ventilation. Void. The mold of claim 1, wherein the gap between the two joint faces of the adjacent two-part molds is less than or equal to 0.02 mm. The mold of claim 1, wherein the roughness of the at least one sub-molding surface is different from the roughness of the other sub-molding surfaces. The mold of claim 1, wherein the at least two mold forming faces are flat, and the two sub-forming faces are combined to form an obtuse angle. The mold of claim 1, wherein at least one of the two sub-molding faces of the two-part mold has a flat surface, and the other sub-molding surface is non-planar, the non-planar surface is convex, concave, concave. One of curved surfaces and uneven surfaces. The mold according to claim 1, wherein at least two of the mold forming faces of the mold core surround the edge of the child forming surface of the third mold core, and the adjacent child mold forming surface of the at least two mold cores The sub-molding surface of the at least two-part mold and the third sub-molding surface are butted. The mold of claim 6, wherein the mold has five partial molds, and the four partial molds are joined to form an annular shape and, after combining, surround and close the edge of the fifth sub-molding surface. The mold of claim 7, wherein the forming surface of the four parting cores of the five parting molds is a flat surface, and the forming surface of the fifth parting mold surrounded by the four partial molds is flat, Any one of a convex curved surface, a concave curved surface, and a convex concave concave surface. The mold according to claim 1, wherein the porous heat-resistant material is selected from one or a combination of hexagonal boron nitride, cerium oxide, aluminum oxide, and hexagonal layer carbon. The mold according to claim 1, wherein the porous heat-resistant material has a density D in a range of 1.5 g / cm ³ D 6.5 g / cm ³ . The mold according to claim 1, wherein the porous heat-resistant material maintains a shape at a temperature range of greater than or equal to 650 ° C and less than or equal to 1600 ° C. The mold according to claim 1, wherein the porous heat-resistant material is internally formed with a plurality of vent holes which are uniformly distributed and penetrate each other, and the pore diameter d of the vent hole is 2 μm. d 0.2 nm . A method of manufacturing a glass casing having a plurality of integrally formed sides, comprising the steps of: providing a mold comprising at least two split mold cores made of a porous heat resistant material, each split mold core Having a sub-forming surface and a splicing surface adjacent to the sub-molding surface; combining the at least two-part mold to face the splicing surface of the at least two-part mold, and splicing the sub-molding surfaces of at least two parting dies into one more a side molding surface, a gap for forming a gas permeable portion between the combined adjacent mold cores; a glass blank is provided, the glass material is placed on the molding surface; and the mold is heated to a glass softening temperature When the at least two-part mold is evacuated, the softened glass blank is attached to the surface of the molding surface; the mold is released and cooled to obtain a glass shell integrally formed with a plurality of sides. The method of manufacturing the glass casing of claim 13, wherein the parting core comprises a lower surface disposed opposite to the sub-molding surface, and in the step of pumping the at least two-part mold The lower surface of the split mold is carried out. A glass case manufactured by the mold according to any one of claims 1 to 12, which has a plurality of side faces, one side of which is a bottom surface of the case, the bottom surface of the case is a flat surface, a convex curved surface, and a concave shape One of the curved faces, the other sides surrounding the edge of the bottom surface of the housing and inclined relative to the bottom surface of the housing The shape of the other side is also one of a plane, a convex curved surface, and a concave curved surface. The intersection between the different sides forms a rounded corner, and the radius of the circle of the rounded corner is 0.05 mm to 0.005 mm. between. The glass casing of claim 15, wherein the glass material is one or a mixture of soda lime glass, aluminosilicate glass, alkali-free glass, and borosilicate. The glass casing of claim 15 wherein the roughness of at least one of the sides is different from the roughness of the other sides. The glass casing of claim 15 wherein the other two sides surround an edge of the bottom surface of the housing and the edges of the two sides abut. The glass casing of claim 18, wherein the multi-sided glass has four sides and a bottom surface of the casing, and the four sides are connected to form an annular shape and surround and close the edge of the bottom surface of the casing. The glass casing of claim 18, wherein the four sides are planar with the bottom surface of the casing, and the four sides extend from an edge of the bottom surface of the casing toward a surface away from the bottom surface of the casing.