CN208980580U - A kind of production mould of bend glass - Google Patents

A kind of production mould of bend glass Download PDF

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Publication number
CN208980580U
CN208980580U CN201821619875.XU CN201821619875U CN208980580U CN 208980580 U CN208980580 U CN 208980580U CN 201821619875 U CN201821619875 U CN 201821619875U CN 208980580 U CN208980580 U CN 208980580U
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China
Prior art keywords
mold
bend glass
production mould
cover board
core
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CN201821619875.XU
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Chinese (zh)
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杨友林
昌国栋
吴雄业
周方田
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Huizhou Yinghe Intelligent Technology Co ltd
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Shenzhen Win In Technology Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/50Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57Improving the yield, e-g- reduction of reject rates

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  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

The utility model relates to a kind of production mould of bend glass and bend glass moulding process.A kind of production mould of bend glass, including mold base, set on the mold core and upper mold cover board of mold base;The upper mold cover board is equipped with several mold inserts;It is equipped with the cambered surface being mutually matched with mold core on the inside of the mold insert, is supplemented for the camber to bend glass.The time of bend glass polishing is greatly saved in the utility model, has saved cost for client;Have greatly improved to the yield after hot bending shape, more meet product design requirement, profile tolerance can more be bonded design requirement;The production efficiency of hot bending equipment can be improved;The structure of graphite jig can satisfy the requirement of complex-curved heat-bending glass with design.

Description

A kind of production mould of bend glass
Technical field
The utility model relates to glass manufacturing apparatus, more specifically refer to a kind of production mould of bend glass.
Background technique
With the arriving of 5G communication signal, flexible OLED screen curtain will be popularized on a large scale, original mobile phone screen from 2.5D glass span will gradually mature, also gradually be liked by customer to 3D glass.For this purpose, mobile phone glass processing industry is in order to seek Interests are taken, 3D glass processing is actively laid out.In recent years, 3D glass bending has become a big difficulty of 3D bend glass processing, Wherein it is essential that graphite jig, graphite jig are made good and bad, the molding result of glass is directly influenced.So needle A large amount of experiment and verifying are needed to the research and development of hot bending graphite jig.
As the sustainable growth and electronic consumer markets of smart terminal product markets are aesthetic to product appearance, touch-control feel The variation of demand, 3D bend glass have boundless market growing space.In 3D bend glass mould manufacturing field, carbon 3D bend glass mold production technology very steady volume production, have begun largely to millet, Huawei, apple, The supply of material of HTC, Samsung etc. all big enterprises.Currently, the graphite jig done in industry, most technologies all derive from South Korea, Structure is relatively single, and dimensions is also substantially similar, is difficult to be broken through again.However, currently, Curved screen is not limited only to this (hand Machine screen), there are the vehicle-mounted screen of many Intelligent bracelets, smartwatch, curved surface, smart home etc. a series of novel glass, all uses Curved screen is arrived.So, for similar complicated curve screens, more reasonable hot bending equipment and hot bending die is needed to complete The production of Curved screen.
With the development of 3C electronic product, bend glass is using more and more extensive.But existing bend glass shaping mould The bend glass that tool and technique are produced does not meet technical requirements.For example, the mold of 3D bend glass hot bending at this stage, production There are the bad problems such as many sags and crests, press back, impression for glass afterwards;After glass is fabricated to type, profile tolerance is unsatisfactory for designing It is required that causing back segment fitting difficult;It is unable to complete the bend glass of curvature height, curvature complexity;The structure of mold is more single, Machinable product scope is limited, and large scale Curved screen cannot achieve hot bending shape;Die size all compares fixation, it is difficult to change And repair a die, moreover, it is more troublesome to repair a die.
As shown in Figure 1 it is the structure chart of existing bend glass hot bending die, is made of punch-pin A and cavity plate B, centre is to want Curved 3D glass product C.But this structure is relatively easy, it is more convenient practical for the bending of four curved surfaces, still, once it relates to And more curved surfaces or larger-size product, this structure are unable to satisfy.
Utility model content
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of production mould of bend glass.
To achieve the above object, the utility model uses following technical scheme:
A kind of production mould of bend glass, including mold base, set on the mold core and upper mold cover board of mold base;Institute It states upper mold cover board and is equipped with several mold inserts;The cambered surface being mutually matched with mold core is equipped on the inside of the mold insert, for curved surface The camber of glass is supplemented.
Its further technical solution are as follows: the core surface is evenly equipped with several vacuum holes, and the vacuum hole be equipped with Vacuum generating device connection.
Its further technical solution are as follows: the mold insert is mutually matched with upper mold cover board;The mold insert is equipped with and mold base The coupling structure being fixedly connected.
Its further technical solution are as follows: the mold base is equipped with buckle protrusion, and the mold insert is equipped with and buckles raised phase The snap-in groove being mutually coupled with;
Or the mold base is equipped with spliced eye, the mold insert is equipped with the inserting column being mutually matched with spliced eye.
Its further technical solution are as follows: the mold base is equipped with the cavity for fixing mold core.
Its further technical solution are as follows: the cavity interior walls are equipped with clamping protrusion, and are equipped with and clamping on the outside of the mold core The card slot of male cooperation.
Its further technical solution are as follows: the mold core, which is equipped with, is used for the molding arcwall face of glass.
Its further technical solution are as follows: the mold base, mold core, upper mold cover board and mold insert material be graphite.
A kind of moulding process of bend glass, comprising the following steps:
Sheet glass to be formed is placed in the die cavity between mold core and upper mold cover board, and mold insert is fastened by step 1, complete At blowing process;
Step 2, after completing blowing, above-mentioned mold is placed in hot-bending machine, carries out pre- thermal technology using every empty radiation mode Sequence;Meanwhile mold core and vacuum generating device connection, so that mold core carries out negative-pressure adsorption to sheet glass;
Upper mold cover board after feeding is transferred to pressure-type process, heated to mold, and guarantee in die cavity by step 3 Temperature at 720-780 DEG C, keep 150-250 seconds;At this point, upper mold cover board is slowly forced into 0.3-0.5MPa, and keep 40-60 seconds;
Step 4, after high-temperature molding, mold is transmitted to annealing operation, and upper mold cover board continues pressure maintaining, mold core continue with Vacuum generating device connection carries out negative-pressure adsorption, so that sheet glass guarantor's type in die cavity, eliminates the internal stress of sheet glass;
Step 5, mold are transferred to slow cooling operation, and upper mold cover board is cooled down using coldplate, and mold core continues to send out with vacuum Generating apparatus joins with the sheet glass after adsorption forming, prevents from deforming;
Step 6, mold are transplanted on cooling process, and upper mold cover board and mold core touch cooling with cold water plate, until mold and Molding sheet glass is cooled to room temperature.
The beneficial effect of the utility model compared with prior art is: bend glass polishing is greatly saved in the utility model Time, saved cost for client;Have greatly improved to the yield after hot bending shape, more meet product design requirement, Profile tolerance can more be bonded design requirement;The production efficiency of hot bending equipment can be improved;The structure of graphite jig can diversification set Meter, can satisfy the requirement of complex-curved heat-bending glass;This bend glass hot bending graphite jig, uses certain time in mold After repair a die can relatively easy convenience, it is only necessary to the mold insert for modifying mold core or mold avoids large area from repairing a die, saves time and knife Tool expense;Bend glass hot bending graphite jig cooperates new radiant heating and Vacuum Heat to inhale technique, can accomplish more accurate ruler Very little glass;Bend glass hot bending graphite jig can increase the service life of graphite jig, and mold is pressed without positive pressure or over-voltage, Mold will not be damaged.
The utility model is further described in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is the structure chart of existing mold;
Fig. 2 is exploded view and its partial enlargement before a kind of glass sheetmolding of the production mould of bend glass of the utility model Figure;
Fig. 3 is exploded view after a kind of glass sheetmolding of the production mould of bend glass of the utility model;
Fig. 4 is a kind of molding perspective view of the production mould of bend glass of the utility model.
Specific embodiment
In order to more fully understand the technology contents of the utility model, combined with specific embodiments below to the skill of the utility model Art scheme is further described and illustrates, but not limited to this.
Such as the drawing that Fig. 2 to Fig. 4 is the utility model embodiment.
A kind of production mould of bend glass, as shown in Figures 2 to 4, including mold base 10, set on mold base 10 Mold core 11 and upper mold cover board 12.Upper mold cover board 12 is equipped with several mold inserts 13.It is equipped on the inside of mold insert 13 mutual with mold core 11 Matched cambered surface is supplemented for the camber to bend glass, and is set to the corner of upper mold cover board 12.The setting of mold insert 13 exists The place more demanding to the camber of bend glass, as camber is big, the position more than camber.Mold insert 13 and upper mold cover board 12 are split type Design, but when in use, the two is stitched together, and it is various that differently curved bend glass is formed, it designs so not only Bend glass forming requirements are able to satisfy, and also more convenient for the processing of mold.
11 surface of mold core is evenly equipped with several vacuum holes 111, and the vacuum hole 111 joins with the vacuum generating device being equipped with It is logical.During bend glass is molding, sheet glass is adsorbed using negative pressure of vacuum, improves the precision of curved surface.
Mold insert 13 is mutually matched with upper mold cover board 12.Mold insert 13 is equipped with the coupling structure being fixedly connected with mold base 10. Mold insert 13 is equally fastened on mold base 10 similar to upper mold cover board 12.
Specifically, mold base 10 is equipped with buckle protrusion 101, the mold insert 13 is equipped with to be coupled to each other with buckle protrusion 101 Snap-in groove 131.Buckle protrusion 101 is connected on snap-in groove 131, so that mold insert 13 couples with mold base 10.
In other embodiments, the mold base 10 is equipped with spliced eye, and the mold insert 13 is equipped with and spliced eye mutual The inserting column matched.
Wherein, mold base 10 is equipped with the cavity 102 for fixing mold core 11, and the two mutually fastens.
Specifically, mold core 11 shifts in order to prevent, 102 inner wall of cavity is equipped with clamping protrusion 103, and 11 outside of the mold core Equipped with the card slot 112 with 103 cooperation of clamping protrusion.
Mold core 11, which is equipped with, is used for the molding arc convex of glass, and upper mold cover board 12 is recessed equipped with corresponding arc Face.Die cavity is formed between arc convex and arc-shaped concave, for placing sheet glass.In the case where being heated to technical requirements, mould Core 11 is passed through negative pressure of vacuum, and upper mold cover board 12 pressurizes, so that sheet glass hot bending shape.
Wherein, mold insert 13 includes the first left mold insert, the lower-left corner of upper mold cover board 12 is set to, for the left side to sheet glass Lower corner is formed.
Or/and second left mold insert be set to the upper left corner of upper mold cover board 12, carried out for the upper left corner to sheet glass Molding;
Or/and first right mold insert be set to the lower right corner of upper mold cover board 12, carried out for the lower right corner to sheet glass Molding;
Or/and second right mold insert be set to the upper right corner of upper mold cover board 12, carried out for the upper right corner to sheet glass Molding.
Mold base 10, mold core 11, upper mold cover board 12 and mold insert 13 material be graphite, during heating, graphite Heat-resisting and deformation quantity is small, so that bend glass precision is high.
Mold core 11,12 surface of upper mold cover board all devise air discharge duct, and mold is avoided to adsorb in vacuum environment, transport to equipment Row impacts.
A kind of moulding process of bend glass, comprising the following steps:
Sheet glass to be formed is placed in the die cavity between mold core 11 and upper mold cover board 12 by step 1, and by mold insert 13 It fastens, completes blowing process.
Step 2, after completing blowing, above-mentioned mold is placed in hot-bending machine, carries out pre- thermal technology using every empty radiation mode Sequence;Meanwhile mold core 11 and vacuum generating device connection, so that mold core 11 carries out negative-pressure adsorption to sheet glass.
Upper mold cover board after feeding is transferred to pressure-type process, heated to mold, and guarantee in die cavity by step 3 Temperature at 720-780 DEG C (preferred 750 DEG C), keep 150-250 seconds (preferred 200 seconds);At this point, upper mold cover board is slow It is forced into 0.3-0.5MPa (preferred 0.4MPa), and keeps 40-60 seconds (preferred 50 seconds).
Step 4, after high-temperature molding, mold is transmitted to annealing operation, and upper mold cover board 12 continues pressure maintaining, mold core 11 after It is continuous to carry out negative-pressure adsorption with vacuum generating device connection, so that sheet glass guarantor's type in die cavity, eliminates the internal stress of sheet glass.
Step 5, mold are transferred to slow cooling operation, and upper mold cover board 12 is cooled down using coldplate, mold core 11 continue with it is true Empty generating device connection prevents from deforming with the sheet glass after adsorption forming.
Step 6, mold are transplanted on cooling process, and upper mold cover board 12 and mold core 11 touch cooling with cold water plate, until mould Tool and molding sheet glass are cooled to room temperature.
In conclusion the time of bend glass polishing is greatly saved in the utility model, cost has been saved for client;To heat Yield after roll forming has greatly improved, and more meets product design requirement, and profile tolerance can more be bonded design requirement;It can mention The production efficiency of high hot bending equipment;The structure of graphite jig can satisfy complex-curved heat-bending glass with design It is required that;This bend glass hot bending graphite jig uses the relatively easy convenience of meeting that repairs a die after a certain period of time in mold, it is only necessary to repair The mold insert for changing mold core or mold, avoids large area from repairing a die, and saves time and cutter expense;Bend glass hot bending graphite jig, Cooperate new radiant heating and Vacuum Heat to inhale technique, can accomplish more accurate dimension glass;Bend glass hot bending graphite jig, The service life of graphite jig can be increased, mold is pressed without positive pressure or over-voltage, will not be damaged to mold.
The above-mentioned technology contents that the utility model is only further illustrated with embodiment, in order to which reader is easier to understand, But the embodiments of the present invention is not represented is only limitted to this, any technology done according to the utility model extends or recreation, By the protection of the utility model.The protection scope of the utility model is subject to claims.

Claims (9)

1. a kind of production mould of bend glass, which is characterized in that including mold base, set on the mold core of mold base, and on Die cap plate;The upper mold cover board is equipped with several mold inserts;It is equipped with the cambered surface being mutually matched with mold core on the inside of the mold insert, uses It is supplemented in the camber to bend glass.
2. a kind of production mould of bend glass according to claim 1, which is characterized in that the core surface is evenly equipped with Several vacuum holes, and the vacuum hole and the vacuum generating device connection being equipped with.
3. a kind of production mould of bend glass according to claim 1, which is characterized in that the mold insert and upper mold cover board It is mutually matched;The mold insert is equipped with the coupling structure being fixedly connected with mold base.
4. a kind of production mould of bend glass according to claim 3, which is characterized in that the mold base is equipped with card Button protrusion, the mold insert are equipped with the snap-in groove being coupled to each other with buckle protrusion;
Or the mold base is equipped with spliced eye, the mold insert is equipped with the inserting column being mutually matched with spliced eye.
5. a kind of production mould of bend glass according to claim 1, which is characterized in that the mold base, which is equipped with, to be used In the cavity of fixed mold core.
6. a kind of production mould of bend glass according to claim 5, which is characterized in that the cavity interior walls are equipped with card Protrusion is connect, and is equipped with the card slot with clamping male cooperation on the outside of the mold core.
7. a kind of production mould of bend glass according to claim 1, which is characterized in that the mold core, which is equipped with, is used for glass The molding arc convex of glass, upper mold cover board are equipped with arc-shaped concave corresponding with arc convex;The arc convex and arc are recessed Die cavity is formed between face.
8. a kind of production mould of bend glass according to claim 1, which is characterized in that the mold base, mold core, The material of upper mold cover board and mold insert is graphite.
9. a kind of production mould of bend glass according to claim 1, which is characterized in that mold core, upper mold lid surface It is equipped with air discharge duct.
CN201821619875.XU 2018-09-30 2018-09-30 A kind of production mould of bend glass Active CN208980580U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821619875.XU CN208980580U (en) 2018-09-30 2018-09-30 A kind of production mould of bend glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821619875.XU CN208980580U (en) 2018-09-30 2018-09-30 A kind of production mould of bend glass

Publications (1)

Publication Number Publication Date
CN208980580U true CN208980580U (en) 2019-06-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110963682A (en) * 2018-09-30 2020-04-07 深圳市赢合技术有限公司 Production mold and forming process of curved glass
CN112441725A (en) * 2019-09-03 2021-03-05 Oppo广东移动通信有限公司 Electronic device, battery cover, and method of manufacturing the same
CN113698077A (en) * 2021-10-28 2021-11-26 启东金耀億华玻纤材料有限公司 Processing device and processing method for multi-curved-surface bent toughened glass

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110963682A (en) * 2018-09-30 2020-04-07 深圳市赢合技术有限公司 Production mold and forming process of curved glass
CN110963682B (en) * 2018-09-30 2023-08-11 惠州市赢合智能技术有限公司 Curved glass production die and curved glass forming process
CN112441725A (en) * 2019-09-03 2021-03-05 Oppo广东移动通信有限公司 Electronic device, battery cover, and method of manufacturing the same
CN113698077A (en) * 2021-10-28 2021-11-26 启东金耀億华玻纤材料有限公司 Processing device and processing method for multi-curved-surface bent toughened glass

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Address after: 516006 201, Floor 2, No. 6 Workshop, No. 301, Huize Avenue, Dongxing District, Dongjiang Science and Technology Park, Zhongkai High tech Zone, Huizhou City, Guangdong Province

Patentee after: Huizhou Yinghe Intelligent Technology Co.,Ltd.

Address before: 518000 west-1, floor 1, building 1, Yinghe Industrial Park, xiahenglang, Dalang street, Shenzhen, Guangdong

Patentee before: SHENZHEN YINGHE TECHNOLOGY CO.,LTD.

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