WO2021138970A1 - 玻璃产品的成型模具、成型设备以及加工方法 - Google Patents

玻璃产品的成型模具、成型设备以及加工方法 Download PDF

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Publication number
WO2021138970A1
WO2021138970A1 PCT/CN2020/076123 CN2020076123W WO2021138970A1 WO 2021138970 A1 WO2021138970 A1 WO 2021138970A1 CN 2020076123 W CN2020076123 W CN 2020076123W WO 2021138970 A1 WO2021138970 A1 WO 2021138970A1
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WIPO (PCT)
Prior art keywords
glass product
molding
mold core
forming
glass
Prior art date
Application number
PCT/CN2020/076123
Other languages
English (en)
French (fr)
Inventor
唐·嘉乐
艾博·托马斯
尼尔森·彼得·克罗内
延森·西蒙·博
索博尔·米加
Original Assignee
诚瑞光学(常州)股份有限公司
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Publication of WO2021138970A1 publication Critical patent/WO2021138970A1/zh

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • C03B11/084—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/14—Other methods of shaping glass by gas- or vapour- phase reaction processes
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
    • C03B23/0302—Re-forming glass sheets by bending by press-bending between shaping moulds between opposing full-face shaping moulds
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
    • C03B23/0307—Press-bending involving applying local or additional heating, cooling or insulating means
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B40/00—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it
    • C03B40/04—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it using gas
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/02—Press-mould materials
    • C03B2215/03—Press-mould materials defined by material properties or parameters, e.g. relative CTE of mould parts
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/40—Product characteristics
    • C03B2215/41—Profiled surfaces
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/40—Product characteristics
    • C03B2215/46—Lenses, e.g. bi-convex
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/65—Means for releasing gas trapped between glass and press die
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/68—Means for parting the die from the pressed glass other than by cooling or use of a take-out

Definitions

  • the invention relates to the technical field of glass forming, in particular to a forming mold, forming equipment and processing method for glass products.
  • Lens is an optical element made of transparent materials (such as glass, crystal, etc.).
  • the lens can be widely used in various fields such as security, automotive, digital cameras, lasers, and optical instruments.
  • lens technology has also More and more widely used.
  • electronic devices are used in people's lives, such as mobile phones, tablet computers, notebooks, etc., and the requirements for lens applications in electronic products are getting higher and higher.
  • glass processing molds are generally used to produce them by thermoforming. After the glass processing molds are closed, the mold body will enclose a gap with a preset shape. The gap is used to confine the shape of the glass substrate in the heated state to form it, and then cool to form a glass product with a preset shape. Due to the action of gravity, the glass product will cool down at the bottom of the mold body.
  • the glass processing mold in the prior art has the following problems during the processing process:
  • the glass product 301 may be glued to the feature 303 of the mold 302, or bonded to the mold at a random point 304 to form a point contact, as shown in Figure 6, where The arrow indicates the shrinking direction of the glass product 301; since the bonding area of the glass product 301 will cool faster, this may cause the glass product 301 to shrink unevenly and cause the glass product 301 to deform, as shown in FIG. 7.
  • the adhesion between the glass product 301 and the surface of the mold 302 is strong. Although the adhesion will gradually decrease during the cooling process, it takes a long time for the glass product 301 to completely cool and release by itself, thus increasing the cost. In addition, if the adhesive force is too strong, the glass product 301 may be broken.
  • the mold 302 with high-angle features will increase the risk of breaking the glass product 301 during the shrinking process of the glass product 301, because the glass shrinks more than the mold during the cooling process, and the high-angle feature of the mold 302 will prevent the glass product 301 Freely shrink in the horizontal direction. For large-diameter glass products, the impact is even greater.
  • the glass product 301 shrinks more, as shown in Figure 8, where the arrows indicate the shrinking direction of the glass product 301 and the mold 302; when the mold 302 and the glass product 301 shrink When the strain caused by the difference in shrinkage is greater than the strain that the glass product 301 can withstand, the glass product 301 will break, as shown in FIG. 9.
  • the first object of the present invention is to provide a glass product forming mold that can make the glass product cool more uniformly without preventing the natural shrinkage of the glass product.
  • a glass product molding mold comprising a lower mold core with a first molding surface and an upper mold core with a second molding surface, the first molding surface is located on the side of the lower mold core close to the upper mold core, The second molding surface is located on a side of the upper mold core close to the lower mold core and is opposite to the first molding surface and encloses a molding cavity.
  • the lower mold core further includes a mold located outside the cavity.
  • the first outer surface; the first molding surface includes a first molding portion for molding the glass product and a first support portion located on the outer periphery of the first molding portion, and the lower mold core is provided with a A first air inlet on the first outer surface, a first air outlet formed on the first support portion, and a first air outlet formed in the lower mold core and communicated with the first air inlet and the first air outlet The first air flow channel.
  • the first outer surface includes a first bottom wall opposite to the first molding surface, extends from the edge of the first bottom wall toward the first molding surface, and is connected to the first molding surface.
  • At least two of the first air outlets are arranged on the first support part at intervals, and the first air outlets correspond to the second flow passages in a one-to-one correspondence.
  • the first molding surface includes at least two first molding portions that are spaced apart from each other, and the first air outlet is provided between two adjacent first molding portions.
  • a plurality of the first molding parts are arranged in an exhibition, and the first air outlet is located in the central area of the first molding surface.
  • the contour of the first molding surface is circular, and a plurality of the first air outlets are distributed at equal intervals around the center of the first molding surface.
  • the upper mold core further includes a second outer surface located outside the cavity, and the second molding surface includes a second molding portion corresponding to the first molding portion and a second molding portion located on the first molding portion.
  • the second support part on the outer periphery of the second molding part, the upper mold core is provided with a second air inlet formed on the second outer surface, a second air outlet formed on the second support part, and a second air outlet formed on the second support part.
  • the second object of the present invention is to provide a glass product molding equipment, including the glass product molding mold as described above and an air supply for passing gas into the first air flow channel through the first air inlet Device.
  • the third object of the present invention is to provide a glass product processing method, including:
  • the glass product molding mold being the above-mentioned glass product molding equipment
  • the gas supply device passes gas into the first air flow channel through the first air inlet, and the gas flows from the first air outlet Blowing to separate the glass substrate from the lower mold core;
  • the first molding surface includes a plurality of the first molding portions spaced apart from each other, the glass product corresponds to the first molding portion one-to-one, and the glass product processing method further includes:
  • the glass substrate is cut to obtain the glass product.
  • the glass product forming mold of the present invention has formed a lens geometry and the glass product is cooled to a stage below the glass transition temperature Tg, by passing through the first air inlet with sufficient pressure
  • the inert gas uses air pressure to push the glass product away from the lower mold core, which eliminates the effect of the difference in thermal expansion coefficient between the glass product and the lower mold core, and makes the glass product cool more evenly.
  • any features in the mold core assembly are It will not prevent the natural shrinkage of the glass product.
  • the production time can be reduced and the cost can be reduced.
  • Figure 1 is an exploded view of the glass product molding equipment of the present invention
  • Figure 2 is a side view of the glass product molding equipment of the present invention.
  • Figure 3 is a view from the A-A direction of Figure 2;
  • Figure 4 is a top view of the lower mold core of the present invention.
  • Figure 5 is a bottom view of the upper mold core of the present invention.
  • Figure 6 is a schematic diagram of the structure of an existing glass product and mold
  • Figure 7 is a schematic diagram of the existing glass product deformed due to uneven heat distribution
  • Figure 8 is a schematic diagram of the existing glass product and the mold when they are shrinking
  • Fig. 9 is a schematic diagram of a conventional glass product cracking due to a difference in shrinkage.
  • the embodiment of the present invention provides a glass product forming device 1.
  • the glass product forming device 1 includes a glass product forming mold 10 and an air supply device 20 for injecting gas into the glass product forming mold 10
  • the glass product molding mold 10 includes a lower mold core 100 having a first molding surface 11 and an upper mold core 200 having a second molding surface 21.
  • the first molding surface 11 is located on the side of the lower mold core 100 close to the upper mold core 200
  • the second molding surface 21 is located on the side of the upper mold core 200 close to the lower mold core 100 and is opposite to the first molding surface 11 and surrounds the molding cavity 500.
  • the lower mold core 100 further includes a first outer surface 12 located outside the cavity 500
  • the first molding surface 11 includes a first molding portion 111 for molding glass products and a first support portion 112 located on the outer periphery of the first molding portion 111, and the lower mold core 100 is provided with a first entry formed on the first outer surface 12
  • the gas port 31 is formed on the first outer surface 12, and the gas supply device 20 is used to pass gas into the first gas flow channel 33 through the first gas port 31.
  • the glass substrate 2 is formed into a glass product in the glass product forming mold 10, and when the glass product has formed the geometric shape of the lens and the temperature drops below the glass transition temperature value, the air supply device 20 is used to pump in from the first air inlet 31 Inert gas with sufficient pressure. The gas reaches the first air outlet 32 and contacts the glass product. The air pressure is used to push the glass product away from the lower core 100 without moving mechanical parts, such as thimble and thimble grille.
  • the purpose of the first forming part 111 is to reduce the cost and complexity of the glass product forming mold 10; the glass product does not contact the first forming part 111 in the later cooling process, eliminating the gap between the glass product and the glass product forming mold 10.
  • the effect of the difference in thermal expansion coefficient makes the glass product cool more evenly, and at the same time, any feature in the lower mold core 100 will not prevent the natural shrinkage of the glass product, ensuring product quality without damaging the lower mold core 100.
  • the production time can be reduced, and the cost can be reduced.
  • the glass product can be removed from the glass product forming mold 10 at any time between the glass product being pushed away from the lower mold core 100 and the glass product is completely cooled, further shortening Production cycle.
  • the outline of the glass substrate 2 is circular.
  • the first outer surface 12 includes a first bottom wall 121 opposite to the first molding surface 11, and a first outer side extending from the edge of the first bottom wall 121 toward the first molding surface 11 and connected to the first molding surface 11.
  • Wall 122, the first air inlet 31 is provided on the first outer side wall 122, the first air flow passage 33 includes a first flow channel 331 extending from the first air inlet 31 in the radial direction of the lower mold core 100 and from the first air inlet 31
  • the port 31 extends along the thickness direction of the lower mold core 100 to the second runner 332 in the lower mold core 100, the second runner 332 communicates with the first runner 331, and the first air inlet 31 is provided on the first outer side wall 122 , It is convenient to supply air, as shown by the arrow in the lower mold core 100 in FIG.
  • the gas enters the first flow channel 331 from the first air inlet 31, flows through the second flow channel 332, and then is ejected from the first air outlet 32 ,
  • the formed air pressure impact force is lower, and the glass product can be pushed away from the first forming part 111 more smoothly.
  • At least two first air outlets 32 are arranged at intervals on the first support portion 112, and the first air outlets 32 and the second flow passages 332 correspond one-to-one.
  • the first molding surface 11 includes at least two first molding portions 111 spaced apart from each other. In this way, at least two glass products can be molded on the glass substrate 2, which is beneficial to improve production efficiency.
  • 111 is arranged in display, which facilitates the cutting and separation of glass products after forming.
  • the first air outlet 32 is arranged between two adjacent first forming parts 111, and the first air outlet 32 is located in the central area of the first forming surface 11. The gas can diffuse from the center to the periphery to make the glass product cool more uniformly.
  • the contour of the first molding surface 11 is circular, and a plurality of first air outlets 32 are distributed at equal intervals around the center of the first molding surface 11.
  • the lower mold core 100 is provided with two first air inlets 31, two parallel and spaced apart first flow channels 331, four second flow channels 332 and four first air outlets 32, one An air inlet 31 communicates with a first flow passage 331, a first flow passage 331 communicates with two second flow passages 332, a second flow passage 332 communicates with a first air outlet 32, and four first air outlets 32 are located in the first In the central area of the molding surface 11, the four first air outlets 32 are equally spaced around the center of the first molding surface 11.
  • the four first air outlets 32 act on a glass product at the same time.
  • the glass product has many stress points and balanced force. , The glass product can be pushed away from the first forming part 111 smoothly. Understandably, the number of the first air outlets 32 can be set according to actual conditions, for example, six, eight, or ten are all possible.
  • the upper mold core 200 further includes a second outer surface 22 located outside the cavity 500, and the second molding surface 21 includes a second molding portion 211 corresponding to the first molding portion 111 and a second molding portion 211 located on the outer periphery of the second molding portion 211.
  • the second outer surface 22 includes a second bottom wall 221 opposite to the second molding surface 21, and a first bottom wall 221 extending from the edge of the second bottom wall 221 toward the second molding surface 21 and connected to the second molding surface 21
  • the upper mold core 200 is provided with a second air inlet 41 formed on the second outer side wall 222, a second air outlet 42 formed on the second support portion 212, and formed in the upper mold core 200 and communicated with
  • the second air flow passage 43 of the second air inlet 41 and the second air outlet 42, the second air inlet 41 is provided on the second outer side wall 222, and the second air passage 43 includes the second air inlet 41 along the upper mold core
  • the third runner 431 extending in the radial direction of 200 and the fourth runner 432 extending from the second air outlet 42 in the thickness direction of the upper mold core 200 to the upper mold core 200, the fourth runner 432 and the third runner 431
  • the second air inlet 41 is arranged on the second outer side wall 222 to facilitate air
  • the gas enters the third flow channel 431 from the second air inlet 41,
  • the flow passes through the fourth flow channel 432 and then is ejected from the second air outlet 42, resulting in a lower air pressure impulse, which can push the glass product away from the second forming part 211 more smoothly.
  • At least two second air outlets 42 are provided in the second support portion 212 at intervals, and the second air outlets 42 correspond to the fourth flow passages 432 one-to-one.
  • the second molding surface 21 includes at least two second molding portions 211 corresponding to the first molding portion 111 that are spaced apart from each other.
  • the plurality of second forming parts 211 are arranged in display, which is beneficial to the cutting and separation of glass products after forming.
  • the second air outlet 42 is provided between two adjacent second forming parts 211, and the second air outlet 42 is located in the first In the central area of the second molding surface 21, gas can diffuse from the center to the periphery, so that the glass product can be cooled more uniformly.
  • the contour of the second molding surface 21 is circular, and several second air outlets 42 surround the center of the second molding surface 21, etc. Spacing distribution.
  • the upper mold core 200 includes two second air inlets 41, two parallel and spaced third flow channels 431, four fourth flow channels 432 and four second air outlets 42, one second The air inlet 41 is connected to a third flow channel 431, a third flow channel 431 is connected to two fourth flow channels 432, a fourth flow channel 432 is connected to a second air outlet 42, and the four second air outlets 42 are located in the first
  • the central area of the second molding surface 21 is designed so that the gas can diffuse from the center to the periphery, so that the glass product is cooled more evenly.
  • the four second air outlets 42 are equally spaced around the center of the second molding surface 21, and the four second outlets
  • the air ports 42 act on a glass product at the same time, and the glass product has many stress points and balanced force, which can smoothly push the glass product away from the upper mold core 200. Understandably, the number of second air outlets 42 can be set according to actual conditions, for example, six, eight, or ten are all possible.
  • the embodiment of the present invention also provides a glass product processing method, which includes the following steps:
  • the gas supply device 20 introduces gas into the first air flow channel 33 through the first air inlet 31, and the gas is blown out from the first air outlet 32 Separate the glass substrate 2 from the glass product forming mold 10;
  • the glass transition temperature refers to the temperature corresponding to the transition from the high elastic state to the glass state or the transition from the glass state to the high elastic state.
  • the glass product exhibits a high elastic state in an environment higher than the glass transition temperature. Glass products are prone to deformation under the action of external forces; glass products behave in a glassy state in an environment below the glass transition temperature. At this time, the glass products have a certain rigidity and are difficult to deform even under the action of external forces.
  • gas is introduced into the first air flow channel 33 through the first air inlet 31 through the gas supply device 20 to avoid the problem of glass product deformation caused by the gas.
  • the first molding surface 11 includes a plurality of first molding portions 111 spaced apart from each other, and the glass product corresponds to the first molding portion 111 one-to-one.
  • the glass product processing method further includes:
  • the glass substrate 2 is cut to obtain a glass product.
  • the embodiment of the present invention provides a glass product processing method by quickly and stably separating the glass product from the glass product forming mold 10 when the temperature of the glass product drops below the glass transition temperature value, thereby eliminating the glass product after forming and before cooling.
  • Various potential factors that become inferior products due to contact with the glass product forming mold 10. The formed glass product is completely independent of the glass product forming mold 10. Its cooling is better and uniform, ensuring product quality and speeding up the glass product The cooling rate shortens the production cycle.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

本发明提供了玻璃产品的成型模具、成型设备以及加工方法，玻璃产品成型设备包括供气装置和玻璃产品成型模具，玻璃产品成型模具包括具有第一成型面的下模芯以及具有第二成型面的上模芯，第一成型面位于下模芯靠近上模芯的一侧，第二成型面位于上模芯靠近下模芯的一侧并与第一成型面相对且围成型腔，下模芯设有设于下模芯的第一进气口、形成于第一成型面的第一出气口、以及形成于下模芯内并连通第一进气口和第一出气口的第一气流通道，通过从第一进气口通入气体，利用气压在玻璃产品还未完全冷却的情况下将其推离下模芯，避免了玻璃产品成型过程中的诸多不利影响并减少了生产时间。

Description

玻璃产品的成型模具、成型设备以及加工方法 技术领域
本发明涉及玻璃成形技术领域，尤其涉及一种玻璃产品的成型模具、成型设备以及加工方法。
 背景技术
透镜是由透明物质（如玻璃、水晶等）制成的一种光学元件,透镜可广泛应用于安防、车载、数码相机、激光、光学仪器等各个领域，随着市场不断的发展，透镜技术也越来越应用广泛。特别是随着互联网时代的发展，电子设备的运用越来越多的进入人们的生活，比如手机、平板电脑、笔记本等，对透镜应用于电子产品的要求也越来越高。
现有技术中，对于由玻璃材质制成的晶圆级透镜，一般采用玻璃加工模具通过热成型来生产，该种玻璃加工模具合模后，模具本体会围成具有预设形状的间隙，从而利用该间隙来局限加热状态的玻璃基材的形状使其成型，然后进行冷却以成型具有预设形状的玻璃产品，由于重力的作用，玻璃产品会在模具本体底部冷却下来。
 技术问题
然而，现有技术中的玻璃加工模具在加工过程中，存在如下问题：
1、在成型过程的最后一步，玻璃产品301可能会与模具302的特征处303粘在一起，或者在某个随机点304与模具粘接在一起，形成点接触，如图6所示，其中箭头表示玻璃产品301的收缩方向；由于玻璃产品301的粘接区域会冷却的更快，这就可能导致玻璃产品收缩不均匀，使得玻璃产品301发生变形现象，如图7所示。
2、在成型过程中，玻璃产品301与模具302表面的附着力强，虽然在冷却过程中，附着力会逐渐降低，但是实现玻璃产品301完全冷却并自行释放需要的时间长，因此增加成本。另外，如果粘合力太强的话，很有可能会造成玻璃产品301破裂。
3、具有高角度特征的模具302在玻璃产品301收缩过程中会增加破碎玻璃产品301的风险，因为玻璃在冷却过程中收缩率比模具更大，而且模具302的高角度特征会阻止玻璃产品301在水平方向自由收缩。对于大直径的玻璃产品来说，对其影响更大。由于玻璃产品301的热膨胀系数比模具302的热膨胀系数大，因此玻璃产品301收缩的更多，如图8所示，其中箭头表示玻璃产品301和模具302的收缩方向；当模具302与玻璃产品301之间由收缩差异导致的应变大于玻璃产品301所能承受的应变时，玻璃产品301就会发生破裂，如图9所示。
因此，有必要提供一种新的模具来解决上述问题。
 技术解决方案
本发明的第一个目的在于提供一种能够使玻璃产品冷却更加均匀，同时不会阻止玻璃产品自然收缩的玻璃产品成型模具。
本发明的技术方案如下：
一种玻璃产品成型模具，包括具有第一成型面的下模芯以及具有第二成型面的上模芯，所述第一成型面位于所述下模芯靠近所述上模芯的一侧，所述第二成型面位于所述上模芯靠近所述下模芯的一侧并与所述第一成型面相对且围成型腔，所述下模芯还包括位于所述型腔外的第一外表面；所述第一成型面包括用于成型所述玻璃产品的第一成型部以及位于所述第一成型部外周的第一支撑部，所述下模芯设有形成于所述第一外表面的第一进气口、形成于所述第一支撑部的第一出气口、以及形成于所述下模芯内并连通所述第一进气口和所述第一出气口的第一气流通道。
作为一种改进方式，所述第一外表面包括与所述第一成型面相对的第一底壁、自所述第一底壁边缘朝所述第一成型面方向延伸并与所述第一成型面相连的第一外侧壁；所述第一进气口设于所述第一外侧壁，所述第一气流通道包括从所述第一进气口沿所述下模芯的径向延伸的第一流道和从所述第一出气口沿所述下模芯的厚度方向延伸至所述下模芯内的第二流道，所述第二流道与所述第一流道连通。
作为一种改进方式，至少两个所述第一出气口间隔设置于所述第一支撑部，所述第一出气口与所述第二流道一一对应。
作为一种改进方式，所述第一成型面包括相互间隔设置的至少两个所述第一成型部，所述第一出气口设置在相邻两所述第一成型部之间。
作为一种改进方式，多个所述第一成型部呈陈列排布，所述第一出气口位于所述第一成型面的中心区域。
作为一种改进方式，所述第一成型面的轮廓为圆形，若干个所述第一出气口环绕所述第一成型面的圆心等间距分布。
作为一种改进方式，所述上模芯还包括位于所述型腔外的第二外表面，所述第二成型面包括与所述第一成型部对应的第二成型部以及位于所述第二成型部外周的第二支撑部，所述上模芯设有形成于所述第二外表面的第二进气口、形成于所述第二支撑部的第二出气口、以及形成于所述上模芯内并连通所述第二进气口和所述第二出气口的第二气流通道。
本发明的第二个目的在于提供一种玻璃产品成型设备，包括如上所述的玻璃产品成型模具以及用于通过所述第一进气口向所述第一气流通道中通入气体的供气装置。
本发明的第三个目的在于提供一种玻璃产品加工方法，包括：
提供玻璃基材和玻璃产品成型设备，所述玻璃产品成型模具为如上所述的玻璃产品成型设备；
将所述玻璃基材放置于所述型腔中并在所述玻璃基材上成型与所述第一成型部对应的玻璃产品；
在所述玻璃产品的温度下降到玻璃化转变温度值以下时，所述供气装置通过所述第一进气口向所述第一气流通道中通入气体，气体从所述第一出气口吹出使所述玻璃基材与所述下模芯分离；
冷却所述玻璃产品。
作为一种改进方式，
所述第一成型面包括多个相互间隔设置的所述第一成型部，所述玻璃产品与所述第一成型部一一对应，所述玻璃产品加工方法还包括：
冷却完成后，切割所述玻璃基材以获得所述玻璃产品。
 有益效果
本发明的有益效果在于：本发明的玻璃产品成型模具在玻璃产品已经形成透镜几何形状并且玻璃产品冷却到低于玻璃化转变温度Tg的阶段，通过从第一进气口通入具有足够压力的惰性气体，利用气压将玻璃产品推离下模芯，消除了玻璃产品与下模芯之间的热膨胀系数差异带来的影响，使玻璃产品冷却更加均匀，同时模芯组件中存在的任何特征都不会阻止玻璃产品的自然收缩，此外，通过更早地移出玻璃产品，能够减少生产时间，降低成本。
 附图说明
图1为本发明的玻璃产品成型设备的分解图；
图2为本发明的玻璃产品成型设备的侧视图；
图3为图2的A-A向视图；
图4为本发明的下模芯的俯视图；
图5为本发明的上模芯的仰视图；
图6为现有玻璃产品与模具的结构示意图；
图7为现有玻璃产品因热量分布不均匀而发生变形的示意图；
图8为现有玻璃产品与模具收缩时的示意图；
图9为现有玻璃产品因收缩差异而发生破裂的示意图。
附图说明：
1、玻璃产品成型设备；
10、玻璃产品成型模具；
20、供气装置；
100、下模芯；11、第一成型面；111、第一成型部；112、第一支撑部；12、第一外表面；121、第一底壁；122、第一外侧壁；
200、上模芯；21、第二成型面；211、第二成型部；212、第二支撑部；22、第二外表面；221、第二底壁；222、第二外侧壁；
31、第一进气口；32、第一出气口；33、第一气流通道；331、第一流道；332、第二流道；
41、第二进气口；42、第二出气口；43、第二气流通道；431、第三流道；432、第四流道；
500、型腔;
2、玻璃基材。
 本发明的实施方式
下面结合附图和实施方式对本发明作进一步说明。
需要说明的是，本发明实施例中所有方向性指示（诸如上、下、左、右、前、后、内、外、顶部、底部……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
还需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
如图1-图5所示，本发明实施例提供一种玻璃产品成型设备1，玻璃产品成型设备1包括玻璃产品成型模具10和用于给玻璃产品成型模具10通入气体的供气装置20，玻璃产品成型模具10包括具有第一成型面11的下模芯100和具有第二成型面21的上模芯200，第一成型面11位于下模芯100靠近上模芯200的一侧，第二成型面21位于上模芯200靠近下模芯100的一侧并与第一成型面11相对且围成型腔500，下模芯100还包括位于型腔500外的第一外表面12；第一成型面11包括用于成型玻璃产品的第一成型部111以及位于第一成型部111外周的第一支撑部112，下模芯100设有形成于第一外表面12的第一进气口31、形成于第一支撑部112的第一出气口32、以及形成于下模芯100内并连通第一进气口31和第一出气口32的第一气流通道33，第一进气口31形成于第一外表面12，供气装置20用于通过第一进气口31向第一气流通道33中通入气体。
玻璃基材2在玻璃产品成型模具10中成型为玻璃产品，在玻璃产品已经形成透镜的几何形状并且温度下降到玻璃化转变温度值以下时利用供气装置20从第一进气口31泵入具有足够压力的惰性气体，气体到达第一出气口32并接触玻璃产品，利用气压将玻璃产品推离下模芯100，不需要移动机械部件，例如顶针、顶针格栅就能够达到使玻璃产品脱离第一成型部111的目的，这降低了玻璃产品成型模具10的成本和复杂性；玻璃产品在后期冷却过程与第一成型部111不接触，消除了玻璃产品与玻璃产品成型模具10之间由于热膨胀系数差异带来的影响，使玻璃产品冷却更加均匀，同时下模芯100中存在的任何特征都不会阻止玻璃产品的自然收缩，保证了产品质量，又不会破坏下模芯100。此外通过更早地移出玻璃产品，能够减少生产时间，降低成本，还能在玻璃产品被推离下模芯100至玻璃产品完全冷却的任意时间段将玻璃产品移出玻璃产品成型模具10，进一步缩短生产周期。
具体地，在本实施例中，玻璃基材2的轮廓为圆形。
优选地，第一外表面12包括与第一成型面11相对的第一底壁121、自第一底壁121边缘朝第一成型面11方向延伸并与第一成型面11相连的第一外侧壁122，第一进气口31设于第一外侧壁122，第一气流通道33包括从第一进气口31沿下模芯100的径向延伸的第一流道331和从第一进气口31沿下模芯100的厚度方向延伸至下模芯100内的第二流道332，第二流道332与第一流道331连通，将第一进气口31设于第一外侧壁122，便于供气，如图3的下模芯100中的箭头所示，气体从第一进气口31进入第一流道331，流经过第二流道332，再从第一出气口32喷出，形成的气压冲击力更低，能够更平缓地将玻璃产品推离第一成型部111。
优选地，至少两个第一出气口32间隔设置于第一支撑部112，第一出气口32与第二流道332一一对应。
优选地，第一成型面11包括相互间隔设置的至少两个第一成型部111，如此，可以在玻璃基材2上成型至少两个玻璃产品，有利于提高生产效率，多个第一成型部111呈陈列排布，有利于玻璃产品成型后的切割分离，第一出气口32设置在相邻两第一成型部111之间，且第一出气口32位于第一成型面11的中心区域，气体能够从中心扩散到周边，使玻璃产品冷却更均匀，第一成型面11的轮廓为圆形，若干个第一出气口32环绕第一成型面11的圆心等间距分布。
在本实施例中，下模芯100设有两个第一进气口31，两个平行间隔设置的第一流道331，四个第二流道332和四个第一出气口32，一个第一进气口31连通一个第一流道331，一个第一流道331连通两个第二流道332，一个第二流道332连通一个第一出气口32，四个第一出气口32位于第一成型面11的中心区域，四个第一出气口32环绕第一成型面11的圆心等间距分布，四个第一出气口32同时作用于一个玻璃产品，玻璃产品受力点多，受力平衡，可平稳地使将玻璃产品推离第一成型部111。可以理解地，第一出气口32的数量可根据实际情况进行设置，比如，设置六个、八个、十个都是可以的。
优选地，上模芯200还包括位于型腔500外的第二外表面22，第二成型面21包括与第一成型部111对应的第二成型部211和位于第二成型部211外周的第二支撑部212，第二外表面22包括与第二成型面21相对的第二底壁221、自第二底壁221边缘朝第二成型面21方向延伸并与第二成型面21相连的第二外侧壁222，上模芯200设有形成于第二外侧壁222的第二进气口41、形成于第二支撑部212的第二出气口42、以及形成于上模芯200内并连通第二进气口41和第二出气口42的第二气流通道43，第二进气口41设于第二外侧壁222，第二气流通道43包括从第二进气口41沿上模芯200的径向延伸的第三流道431和从第二出气口42沿上模芯200的厚度方向延伸至上模芯200内的第四流道432，第四流道432与第三流道431连通，将第二进气口41设于第二外侧壁222，便于供气，如图3的上模芯200中的箭头所示，气体从第二进气口41进入第三流道431，流经过第四流道432，再从第二出气口42喷出，形成的气压冲力更低，能够更平缓地将玻璃产品推离第二成型部211。
优选地，至少两个第二出气口42间隔设置于第二支撑部212，第二出气口42与第四流道432一一对应。
优选地，第二成型面21包括相互间隔设置的至少两个与第一成型部111对应的第二成型部211，如此，可以在玻璃基材2上成型至少两个玻璃产品，有利于提高生产效率，多个第二成型部211呈陈列排布，有利于玻璃产品成型后的切割分离，第二出气口42设置在相邻两第二成型部211之间，且第二出气口42位于第二成型面21的中心区域，气体能够从中心扩散到周边，使玻璃产品冷却更均匀，第二成型面21的轮廓为圆形，若干个第二出气口42环绕第二成型面21的圆心等间距分布。
在本实施中，上模芯200包括两个第二进气口41，两个平行间隔设置的第三流道431，四个第四流道432和四个第二出气口42，一个第二进气口41连接一个第三流道431，一个第三流道431连通两个第四流道432，一个第四流道432连通一个第二出气口42，四个第二出气口42位于第二成型面21的中心区域，这样设计，气体能够从中心扩散到周边，使玻璃产品冷却更均匀，四个第二出气口42环绕第二成型面21的圆心等间距分布，四个第二出气口42同时作用于一个玻璃产品，玻璃产品受力点多，受力平衡，可平稳地使将玻璃产品推离上模芯200。可以理解地，第二出气口42的数量可根据实际情况进行设置，比如，设置六个、八个、十个都是可以的。
 
本发明实施例还提供一种玻璃产品加工方法，包括如下步骤：
提供玻璃基材2和玻璃产品成型设备1；
将玻璃基材2放置于型腔500中，并使其在高于玻璃化转变温度的高温下成型为与第一成型部111对应的玻璃产品；
然后冷却玻璃产品，在玻璃产品的温度下降到玻璃化转变温度值以下时，供气装置20通过第一进气口31向第一气流通道33中通入气体，气体从第一出气口32吹出使玻璃基材2与玻璃产品成型模具10分离；
冷却玻璃产品。
其中，玻璃化转变温度是指由高弹态转变为玻璃态或者由玻璃态转变为高弹态所对应的温度，玻璃产品在高于玻璃化转变温度的环境下表现为高弹态，此时玻璃产品在外力作用下很容易发生变形；玻璃产品在低于玻璃化转变温度的环境下表现为玻璃态，此时玻璃产品具有一定的刚性，即使在外力作用下也难以发生形变，因此在玻璃产品的温度下降到玻璃化转变温度以下时，才通过供气装置20通过第一进气口31向第一气流通道33中通入气体，避免因气体推动而导致玻璃产品变形的问题。
优选地，第一成型面11包括多个相互间隔设置的第一成型部111，玻璃产品与第一成型部111一一对应，玻璃产品加工方法还包括：
冷却完成后，切割玻璃基材2以获得玻璃产品。
本发明实施例提供玻璃产品加工方法通过在玻璃产品的温度下降到玻璃化转变温度值以下时，将玻璃产品快速、稳定地与玻璃产品成型模具10分离，消除了成型后、冷却前的玻璃产品因与玻璃产品成型模具10接触而成为次品的各种潜在因素，成型的玻璃产品完全独立于玻璃产品成型模具10之外，其冷却更佳均匀，保证了产品质量，同时加快了玻璃产品的冷却速度，缩短生产周期。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (10)

  1. 一种玻璃产品成型模具，其特征在于，包括具有第一成型面的下模芯以及具有第二成型面的上模芯，所述第一成型面位于所述下模芯靠近所述上模芯的一侧，所述第二成型面位于所述上模芯靠近所述下模芯的一侧并与所述第一成型面相对且围成型腔，所述下模芯还包括位于所述型腔外的第一外表面；所述第一成型面包括用于成型所述玻璃产品的第一成型部以及位于所述第一成型部外周的第一支撑部，所述下模芯设有形成于所述第一外表面的第一进气口、形成于所述第一支撑部的第一出气口、以及形成于所述下模芯内并连通所述第一进气口和所述第一出气口的第一气流通道。
  2. 根据权利要求1所述的玻璃产品成型模具，其特征在于，所述第一外表面包括与所述第一成型面相对的第一底壁、自所述第一底壁边缘朝所述第一成型面方向延伸并与所述第一成型面相连的第一外侧壁；所述第一进气口设于所述第一外侧壁，所述第一气流通道包括从所述第一进气口沿所述下模芯的径向延伸的第一流道和从所述第一出气口沿所述下模芯的厚度方向延伸至所述下模芯内的第二流道，所述第二流道与所述第一流道连通。
  3. 根据权利要求2所述的玻璃产品成型模具，其特征在于，至少两个所述第一出气口间隔设置于所述第一支撑部，所述第一出气口与所述第二流道一一对。
  4. 根据权利要求1所述的玻璃产品成型模具，其特征在于，所述第一成型面包括相互间隔设置的至少两个所述第一成型部，所述第一出气口设置在相邻两所述第一成型部之间。
  5. 根据权利要求4所述的玻璃产品成型模具，其特征在于，多个所述第一成型部呈陈列排布，所述第一出气口位于所述第一成型面的中心区域。
  6. 根据权利要求5所述的玻璃产品成型模具，其特征在于，所述第一成型面的轮廓为圆形，若干个所述第一出气口环绕所述第一成型面的圆心等间距分布。
  7. 根据权利要求1所述的玻璃产品成型模具，其特征在于，所述上模芯还包括位于所述型腔外的第二外表面，所述第二成型面包括与所述第一成型部对应的第二成型部以及位于所述第二成型部外周的第二支撑部，所述上模芯设有形成于所述第二外表面的第二进气口、形成于所述第二支撑部的第二出气口、以及形成于所述上模芯内并连通所述第二进气口和所述第二出气口的第二气流通道。
  8. 一种玻璃产品成型设备，其特征在于,包括如权利要求1-7任一项所述的玻璃产品成型模具以及用于通过所述第一进气口向所述第一气流通道中通入气体的供气装置。
  9. 一种玻璃产品加工方法，其特征在于,包括：
    提供玻璃基材和玻璃产品成型设备，所述玻璃产品成型模具为权利要求8所述的玻璃产品成型设备；
    将所述玻璃基材放置于所述型腔中并在所述玻璃基材上成型与所述第一成型部对应的玻璃产品；
    在所述玻璃产品的温度下降到玻璃化转变温度值以下时，所述供气装置通过所述第一进气口向所述第一气流通道中通入气体，气体从所述第一出气口吹出使所述玻璃基材与所述下模芯分离；
    冷却所述玻璃产品。
  10. 根据权利要求9所述的玻璃产品加工方法，其特征在于, 所述第一成型面包括多个相互间隔设置的所述第一成型部，所述玻璃产品与所述第一成型部一一对应，所述玻璃产品加工方法还包括：
    冷却完成后，切割所述玻璃基材以获得所述玻璃产品。
PCT/CN2020/076123 2020-01-09 2020-02-21 玻璃产品的成型模具、成型设备以及加工方法 WO2021138970A1 (zh)

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