TWM546396U - Glass molding apparatus - Google Patents

Abstract

A glass molding apparatus includes a first molding structure, a second molding structure, an air exhaust module and a heating module. The first molding structure has a first molding component. The second molding structure is movably disposed on the first molding structure. The second molding structure has a second molding component and a ventilation component. The second molding component has an accommodating slot and an exhausting hole connected to each other. The ventilation component is disposed on the second molding component to cover the accommodating slot. The ventilation component is utilized to hold molding glass, and to press two opposite surfaces of the molding glass with the first molding component. The air exhaust module can exhaust gaseous matter inside the accommodating slot through the exhausting hole, and the heating module is used to heat the first molding structure and the second molding structure to soften the molding glass.

Description

Glass forming equipment

The present invention provides a glass forming apparatus, especially a glass forming apparatus which can effectively prevent mold glass from slipping and hot bending.

Please refer to FIG. 1 , which is a schematic view of a conventional glass forming apparatus 10 . The glass forming apparatus 10 includes a first mold member 12, a second mold member 14, and a drive unit 16 that drives the second mold member 14 to move relative to the first mold member 12. The second mold member 14 is movably disposed on the first mold member 12 through the positioning module 18, and has a molding chamber 20 between the first mold member 12 and the second mold member 14. After the mold glass 22 is placed in the molding chamber 20, both sides of the mold glass 22 contact the inner wall surface of the molding chamber 20, and the intermediate portion is suspended inside the molding chamber 20. The first mold member 12 and the second mold member 14 first heat the mold glass 22, and the intermediate portion of the mold glass 22 exhibits a curved arc or wavy state due to high temperature softening, such as the molded glass 22 drawn in broken lines in FIG. After the driving device 16 drives the first mold member 12 and the second mold member 14 to be clamped, the curved or wavy region of the mold glass 22 is subjected to hot pressing to produce unevenness of the plane, which is difficult to utilize the subsequent process. Flat, affecting the transparency of the finished glass.

The present invention provides a glass forming apparatus that can effectively prevent mold glass slip and hot bend warpage to solve the above problems.

The patent application scope of the present invention discloses a glass forming apparatus for hot press forming a molded glass. The glass forming apparatus comprises a first mold structure, a second mold structure, a suction module and a heating module. The first mold structure includes a first mold member. The second mold structure is disposed adjacent to the first mold structure in a relatively movable manner. The second mold structure includes a second mold member and a gas permeable member. The second mold member has a receiving groove and a suction hole connected to each other. The gas permeable component is disposed on the second mold member to seal the accommodating groove. The gas permeable assembly is configured to carry the molded glass, and press the first mold members to press the opposite surfaces of the mold glass to generate hot press deformation. The air suction module is disposed outside the second mold structure, and the accommodating groove and the gas permeable component are combined to form an accommodating space for exhausting through the air venting hole. The heating module is configured to heat the first mold structure and the second mold structure.

The scope of the patent application of the present invention further discloses that the glass forming apparatus further comprises an actuating module coupled to at least one of the first mold structure and the second mold structure. The actuating module drives the first mold member and the second mold member to be relatively displaced, so that the molded glass is attached to the gas permeable member to generate hot pressing deformation.

The scope of the patent application of the present invention further discloses that the second mold member further has a plurality of support bars arranged at the bottom of the accommodating groove to form a plurality of air guiding grooves.

The scope of the patent application of the present invention further discloses that the air suction module discharges the gas in the accommodating space to adsorb the molded glass to the gas permeable component.

The scope of the patent application of the present invention further discloses that the gas permeable component is made of a microporous material or is subjected to a fine hole through process of a gas impermeable mold material.

The scope of the patent application of the present invention further discloses that the gas permeable component comprises a planar region and a curved region, the curved region surrounding the periphery of the planar region, the planar region having a gas permeable material characteristic, and the curved region selective With breathable material properties.

The scope of the patent application of the present invention further discloses that the pumping module adsorbs the molded glass through the planar region of the gas permeable component.

The molded glass of the traditional glass forming equipment will soften and sag when preheating. The glass forming equipment of the present invention can support and absorb the flat window area of the molded glass by using the ventilating component, thereby effectively avoiding the hot bending of the molded glass. The molded glass of the traditional glass forming equipment will be offset from its initial position when it is softened by preheating, and the glass forming equipment of the present invention can be exhausted by the pumping module, so that the molded glass can be smoothly adsorbed to the gas permeable component, so Improve product quality.

Please refer to FIG. 2 to FIG. 4 . FIG. 2 is a schematic view showing the structure of the mold of the present embodiment. FIG. 3 and FIG. 4 are respectively schematic views of the glass forming apparatus of the present embodiment at different stages of operation. The glass forming apparatus 30 can include a first mold structure 32, a second mold structure 34, a pumping module 36, a heating module 38, and an actuation module 40. The first mold structure 32 is movable relative to the second mold structure 34 through the positioning unit 42, wherein the positioning unit 42 can be a guide rod, a wedge-shaped structure, a corresponding concave-convex structure, or the like. The first mold structure 32 includes a first mold member 44 having a shape that matches the surface shape of the gas permeable member 46 of the second mold structure 34. The second mold structure 34 further includes a second mold member 47 having a communicating receiving groove 48 and a suction hole 50. The venting assembly 46 is placed on the second mold member 47 by inlaying or locking to seal the accommodating groove 48.

The pumping module 36 is disposed outside of the second mold structure 34. The air pumping module 36 can discharge the gas in the accommodating space formed by the accommodating groove 48 and the venting component 46 via the venting hole 50 and the corresponding exhausting passage 381 of the heating module 38; and the molded glass is carried by the venting component 46. At 520 hours, the air extraction module 36 is activated to exhaust, and the molded glass 52 can be stably adsorbed to the gas permeable member 46 by the negative pressure effect. As shown in FIG. 2, the second mold member 47 is further arranged with a plurality of support bars 54 arranged at the bottom of the accommodating groove 48. The gap between the support bars 54 forms an air guiding groove 56, and the air guiding groove 56 is connected. In the suction hole 50. The support strip 54 and the air guide groove 56 are designed to assist the gas permeable assembly 46 to uniformly adsorb the molded glass 52, and the related structural design is not limited to the prior embodiment, depending on actual needs; for example, A plurality of air guiding grooves are directly excavated at the bottom of the accommodating groove 48, and a portion that is not excavated between the adjacent air guiding grooves can be regarded as a supporting strip.

In general, the venting assembly 46 can be selected from microporous materials or can be machined through a non-permeable mold material to achieve breathability. The venting assembly 46 can include a planar region 461 and a curved region 462, and the curved region 462 surrounds the perimeter of the planar region 461. For example, the curved region 462 can be disposed on opposite sides of the planar region 461, or can be disposed on four sides of the planar region 461, depending on the curved design requirements of the molded glass 52. 2 shows only that the curved region 462 is located on opposite sides of the planar region 461. However, the shape and arrangement of the regions of the gas permeable member 46 can be variously implemented, and the variation application is not limited thereto.

The planar region 461 preferably has a gas permeable material characteristic, and the pumping module 36 adsorbs the molded glass 52 via the planar region 461 of the gas permeable member 46; the curved region 462 is selectively provided with a gas permeable material. If the gas permeable component 46 is made of a microporous material, the planar region 461 and the curved region 462 will generally have a gas permeable material property; for example, the gas permeable component 46 is a gas impermeable mold material, and the fine hole penetrating process can be performed only in the planar region 461, so that only the plane Region 461 has breathable material properties. The curved region 462 is used for the hot press forming of the molded glass 52 in cooperation with the first mold member 44. The molded glass 52 does not directly contact the curved region 462 before the thermoforming, so that the curved region 462 does not have the characteristics of the gas permeable material and does not affect the ventilation. The assembly 46 applies an absorbing force to the molded glass 52.

The heating module 38 can include a first heating block 58 and a second heating block 60 disposed on the first mold structure 32 and the second mold structure 34, respectively, through the first mold structure 32 and the second mold structure 34 to the molded glass 52. The opposite surfaces are uniformly heated to soften. To perform the hot press forming process, as shown in FIG. 3, the molded glass 52 is first placed on the gas permeable member 46, the preheating function of the heating module 38 is turned on, and the heat generated by the first heating block 58 and the second heating block 60 is generated. The mold glass 52 is gradually softened by high temperature via the first mold structure 32 and the second mold structure 34 to the mold glass 52. At this time, the air extraction module 36 discharges the internal air of the accommodating groove 48, so that the planar window region (that is, the intermediate portion thereof) of the molded glass 52 can be adsorbed on the planar region 461 of the venting member 46, thereby preventing the molded glass 22 from being unexpected. Sexual softening or sagging.

When the preheating reaches the glass forming temperature, the actuation module 40 drives the first mold structure 32 to move relative to the second mold structure 34. As shown in FIG. 4, the opposite surfaces of the molded glass 52 are respectively pressed against the first mold member. 44 and the venting assembly 46, the non-planar window region of the molded glass 52 (ie, the side region outside the planar window region) can be gradually curved, and the planar window region is still attached to the planar region 461 of the venting member 46 to maintain flatness; At this time, the air pumping module 36 preferably maintains the exhaust function. After the hot press forming is completed, the air pumping module 36 is closed, and the first mold structure 32 and the second mold structure 34 are cooled to enable the bending and forming. After the molded glass 52. The actuation module 40 can be a pneumatic or electric motor that is selectively coupled to at least one of the first mold structure 32 and the second mold structure 34. In this embodiment, the second mold structure 34 remains stationary, and the actuation module 40 pushes the first mold structure 32 toward the second mold structure 34 for clamping; however, the first mold structure 32 can also be maintained statically. The second mold structure 34 is pushed by the actuation module 40 to the first mold structure 32, or the actuation module 40 can simultaneously drive the first mold structure 32 and the second mold structure 34 to be displaced to perform mold clamping.

In summary, the glass forming apparatus 10 of the present invention places the gas permeable assembly 46 on the side of the second mold structure 34 facing the first mold structure 32, and the gas permeable assembly 46 is used to place the molded glass 52. Before the hot press clamping, the gas is exhausted from the venting module 48, and the molded glass 52 is adsorbed on the gas permeable member 46, and is not affected by the external force, and is softened in a high temperature environment. The flatness of the planar window region of the molded glass 52 is maintained by the support and suction of the gas permeable member 46 without causing curling or warping. The actuation module 40 drives the first mold structure 32 to form a mold with the second mold structure 34. The first mold member 44 and the gas permeable member 46 respectively press the opposite surfaces of the mold glass 52, and the planar window region of the molded glass 52 is pasted. The planar region 461 of the venting assembly 46 is capable of maintaining excellent flatness, and the non-planar window region of the molded glass 52 is curved in accordance with the curved region 462 of the permeable member 46 to complete the thermoforming of the molded glass 52.

Compared with the prior art, the molded glass of the conventional glass forming equipment softens and sag when preheating, and the glass forming equipment of the present invention can support and absorb the flat window area of the molded glass by using the ventilating component, thereby effectively avoiding molding. The hot bending of the glass; the molded glass of the traditional glass forming equipment will be offset from its initial position when it is softened by preheating, and the glass forming equipment of the present invention can be exhausted by the pumping module to make the molded glass smoothly adsorbed. Breathable components can greatly improve product quality.

10‧‧‧Glass forming equipment
12‧‧‧First mould parts
14‧‧‧Second mold parts
16‧‧‧ drive
18‧‧‧ Positioning Module
20‧‧‧Molding chamber
22, 22' ‧ ‧ molded glass
30‧‧‧Glass forming equipment
32‧‧‧First mold structure
34‧‧‧Second mold structure
36‧‧‧Exhaust module
38‧‧‧heating module
381‧‧‧Exhaust passage
40‧‧‧Activity Module
42‧‧‧ Positioning unit
44‧‧‧First mould parts
46‧‧‧ Breathable components
461‧‧‧ flat area
462‧‧‧ Curved area
47‧‧‧Second mold parts
48‧‧‧ accommodating slots
50‧‧‧Pumping holes
52‧‧‧Molded glass
54‧‧‧Support bars
56‧‧‧air guide
58‧‧‧First heating block
60‧‧‧second heating block

Figure 1 is a prior art schematic of a conventional glass forming apparatus. Fig. 2 is a schematic view showing the structure of a mold of the present embodiment. 3 and 4 are schematic views of the glass forming apparatus of the present embodiment at different stages of operation.

30‧‧‧Glass forming equipment

32‧‧‧First mold structure

34‧‧‧Second mold structure

36‧‧‧Exhaust module

38‧‧‧heating module

381‧‧‧Exhaust passage

40‧‧‧Activity Module

42‧‧‧ Positioning unit

44‧‧‧First mould parts

46‧‧‧ Breathable components

47‧‧‧Second mold parts

50‧‧‧Pumping holes

52‧‧‧Molded glass

54‧‧‧Support bars

56‧‧‧air guide

58‧‧‧First heating block

60‧‧‧second heating block

Claims (8)

A glass forming apparatus for hot press forming a molded glass, the glass forming apparatus comprising: a first mold structure including a first mold member; and a second mold structure disposed adjacent to the movable manner In the first mold structure, the second mold structure comprises: a second mold member having a receiving groove and a suction hole; and a gas permeable member disposed on the second mold member to seal the capacity a gas permeable component is configured to carry the mold glass, and press the first mold member to press the opposite surfaces of the mold glass to generate hot press deformation; a pumping module disposed outside the second mold structure And venting the accommodating groove and the gas permeable member to form an accommodating space through the venting hole; and heating a module for heating the first mold structure and the second mold structure. The glass forming apparatus of claim 1, further comprising: an actuating module coupled to at least one of the first mold structure and the second mold structure, the actuating module driving the first mold The piece is displaced relative to the second mold member, and the molded glass is attached to the gas permeable member to generate hot pressing deformation. The glass forming apparatus of claim 1, wherein the second mold member further has a plurality of support strips arranged at a bottom of the receiving groove to form a plurality of air guiding grooves. The glass forming apparatus of claim 1, wherein the air suction module discharges the gas in the accommodating space to adsorb the molded glass to the gas permeable component. The glass forming apparatus of claim 1, wherein the gas permeable component is made of a microporous material. The glass forming apparatus according to claim 1, wherein the gas permeable member is subjected to a fine hole through process using a gas impermeable mold material. The glass forming apparatus of claim 1, wherein the gas permeable component comprises a planar region and a curved region, the curved region surrounding the periphery of the planar region, the planar region having a gas permeable material characteristic, and the curved Type regioselectivity has gas permeable material properties. The glass forming apparatus of claim 7, wherein the pumping module adsorbs the molded glass via the planar region of the gas permeable component.