CN108218200B - Unilateral hot bending forming die of hot bending product - Google Patents
Unilateral hot bending forming die of hot bending product Download PDFInfo
- Publication number
- CN108218200B CN108218200B CN201611193173.5A CN201611193173A CN108218200B CN 108218200 B CN108218200 B CN 108218200B CN 201611193173 A CN201611193173 A CN 201611193173A CN 108218200 B CN108218200 B CN 108218200B
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- hot
- upper die
- product
- die
- bending
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Classifications
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- 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
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention provides a unilateral hot bending forming die of a hot bending product, which comprises a main body plane part and an arc surface part arranged at one end of the main body plane part, wherein the forming die comprises an upper die and a lower die which are arranged up and down and are in clamping connection, a cavity for accommodating the hot bending product is arranged on the lower die, the upper die comprises an upper die I and an upper die II which are arranged in a split mode, the upper die I and the upper die II are respectively arranged right above the hot bending product plane part and the arc surface part, an arc-shaped structure for pressing the product to be bent and formed is fixedly arranged on the lower surface of the upper die II, a pressing block I and a pressing block II are respectively arranged above the upper die I and the upper die II, and a dust cover is arranged outside the die to prevent dust from entering the die and causing product appearance defects. The die is simple in structure, suitable for hot bending forming of various oversized products, capable of guaranteeing flatness and flexibility of the products, and high in yield.
Description
Technical Field
The invention relates to the field of mobile phone glass production and processing, in particular to a unilateral hot bending forming die of a hot bending product.
Background
Today, single sheet glass has failed to meet the production requirements, and there is an increasing demand for curved glass of various types, which are formed by heating ordinary glass at high temperature and applying force to bend its sides. Because the oversized glass has the characteristics of long length, large thickness and high bending radian, the glass is not beneficial to hot bending processing.
The existing processing mode is that two plate dies are adopted to directly press the product up and down, and as the upper die is of an integrally formed structure, the excessive pressure can cause defects on the plane part of the product, such as surface embossing, R-angle embossing, inverted triangle and the like, the fine processing difficulty of the subsequent process is increased, and the product delivery standard is affected; too little pressure can cause the arcuate portion of the product to buckle out of place. Therefore, even if the finished product is produced, the yield is low, the average cost is increased, and the existing hot bending equipment and the existing mould can not produce the oversized unilaterally bent glass finished product meeting the requirements of customers.
Disclosure of Invention
In order to solve the technical problem that the integral forming die has more defects in hot bending products, the invention provides the unilateral hot bending forming die which has a simple structure, can reduce hot bending defects and is suitable for processing oversized products.
The utility model provides a unilateral hot bending forming die of hot bending product, the hot bending product includes main part plane part and sets up in its cambered surface part of one end, forming die includes upper die and lower mould that sets up from top to bottom and block is connected be provided with the die cavity that is used for holding the hot bending product on the lower mould, upper die is including the last mould one and the last mould two that the components of a whole that can function independently set up respectively, go up mould one and last mould respectively correspond and set up in the hot bending product plane part and cambered surface part directly over, and go up mould two's lower fixed surface is provided with the arc structure that is used for oppression product bending formation go up mould one and last mould two's top is provided with briquetting one and briquetting two respectively.
Preferably, a dust cover is further provided on the outside of the mold to prevent dust from entering the mold and causing defects in the appearance of the product.
Preferably, the vertical side of the arc structure is provided with a bump, the side wall of the cavity of the lower die is provided with a groove matched with the bump, and the horizontal displacement of the upper die II during the downward pressing is avoided through the clamping connection of the bump and the groove.
Preferably, the mass of the second pressing block is larger than that of the first pressing block. In the forming process, the first pressing block has the function of preventing the plane part of the product from deforming, if the first pressing block is too light in weight, the upper die is displaced, and if the first pressing block is too heavy in weight, the surface of the product is provided with a die mark defect; the second pressing block has the function of ensuring that the cambered surface part of the product is bent in place, so that the weight of the second pressing block is set according to the weight born by an unshaped product, the bending part is broken due to the fact that the weight is too heavy, and the final forming is not facilitated due to the fact that the weight is too light.
Preferably, the mass of the first pressing block is 2.75-3.25kg, and the mass of the second pressing block is 3.75-4.25kg.
Preferably, the hot-bent product is a glass product.
Preferably, the maximum thickness of the total thickness of the second upper die and the arc-shaped structure is the same as the thickness of the first upper die, so that the upper surfaces of the first upper die and the second upper die are at the same level before the product is formed by hot bending.
Preferably, the thicknesses of the first upper die and the second upper die are set so that the bottom surface of the first upper die and the bottom surface of the second upper die are in the same plane after the hot pressing is completed.
Preferably, the arc-shaped structure further comprises a bottom plane structure arranged at the end part of the hot-bending product, wherein the length of the bottom plane structure in the length direction of the hot-bending product is set to be equal to that of the bottom plane structure before the hot-bending product is hot-pressed, the bottom plane structure is flatly pressed on the hot-pressing product, and the bottom plane structure is matched with the end plane of the cavity after the hot-bending product is hot-pressed.
Preferably, the length of the bottom plane structure in the length direction of the hot-bent product is set as a difference value between the arc length of the hot-bent product after hot bending and the projection length of the arc length corresponding to the horizontal plane.
The technical scheme provided by the invention has the following beneficial effects: the mold is simple and practical, the upper mold is designed in a sectional mode, and pressing blocks with different qualities are correspondingly arranged above each section, so that the pressure born by the plane part and the cambered surface part of the product during hot bending is just proper and cannot influence each other, dust is prevented from entering the mold by arranging the dust cover, and the appearance defect of the product is reduced; the die avoids production defects such as surface imprinting, insufficient curvature and the like, does not need polishing treatment of a post-process, has a yield of up to 95% and saves production cost.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings described below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic view of the construction of a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the split construction of the mold in the embodiment of FIG. 1;
FIG. 3 is a schematic view of the structure of the embodiment of FIG. 1 in which the heat-bent product is placed (before heat-bending forming);
FIG. 4 is a schematic view of the structure of the heat-bent product (after heat bending) placed in the embodiment shown in FIG. 1;
in the figure: 01 a hot bending product, 1 a first upper die, 2 a second upper die, 3 a lower die, 4 an arc-shaped structure, 5 a first pressing block, 6 a second pressing block and 7 a dust cover.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, a unilateral hot bending forming die of a hot bending product is a glass product, the hot bending product comprises a main body plane part and an arc surface part arranged at one end of the main body plane part, the forming die comprises an upper die and a lower die 3 which are arranged up and down and are connected in a clamping mode, a cavity for accommodating the hot bending product is arranged on the lower die 3, the upper die comprises an upper die 1 and an upper die 2 which are arranged in a split mode, the upper die 1 and the upper die 2 are respectively and correspondingly arranged right above the plane part and the arc surface part of the hot bending product, an arc-shaped structure 4 for pressing the bending forming of the product is fixedly arranged on the lower surface of the upper die 2, and a pressing block 1 and a pressing block two 6 are respectively arranged above the upper die 1 and the upper die two 2.
A dust cover 7 is arranged outside the die to prevent dust from entering the die and causing appearance defects of the product; the vertical side of arc structure 4 is provided with the lug the die cavity lateral wall of lower mould 3 be provided with the recess of lug matching, through the block connection of lug and recess in order to avoid go up mould two 2 takes place horizontal displacement when pushing down.
In this embodiment, the first pressing block 5 and the second pressing block 6 are made of hardware, the mass of the first pressing block 5 is 3kg, and the mass of the second pressing block 6 is 4kg.
In this embodiment, the maximum thickness of the total thickness of the upper die two 2 and the arc structure 4 is the same as the thickness of the upper die one 1, so that the upper surfaces of the upper die one 1 and the upper die two 2 are at the same level before the product is not hot-bent and formed, and the thicknesses of the upper die one 1 and the upper die two 2 are set to be in the same plane as the bottom surface of the upper die one 1 and the bottom surface of the upper die two 2 after the hot pressing is completed.
In this embodiment, the arc-shaped structure 4 further includes a bottom plane structure disposed at a position corresponding to an extreme end of the heat-bent product. The length of the bottom plane structure in the length direction of the hot-bent product is set to be that the bottom plane structure is flatly pressed on a hot-pressed product before the hot-bent product is hot-pressed, and the bottom plane structure is matched with the end plane of the cavity after the hot-bent product is hot-pressed; and the length of the bottom plane structure in the length direction of the hot-bent product is set as the difference value between the arc length of the hot-bent product and the projection length of the arc length corresponding to the horizontal plane.
The use process of the unilateral hot bending forming die is as follows:
the method comprises the steps of cleaning a mold, placing a glass plate to be heated and bent in a cavity of a lower mold 3, covering an upper mold 1, placing a pressing block 5 on the upper mold, covering an upper mold 2, placing a pressing block 6 on the upper mold, ensuring that the upper surfaces of the upper mold 1 and the upper mold 2 are at the same horizontal height in the process, sleeving a dust cover 7 outside the whole mold, and pushing the dust cover 7 into a vacuum quenching furnace together. The glass is heated and bent by opening equipment, the highest temperature is set to 690 ℃, the heat preservation time is set to 20min, along with the rising of the temperature, the glass is gradually softened, the upper die II 2 is gradually moved downwards under the heavy pressure of the pressing block II 6, and the part of the glass which is required to be heated and bent is attached to the inner wall of the cavity under the action of the arc-shaped structure 4, so that bending and forming are realized, and the lower surfaces of the upper die I1 and the upper die II 2 are positioned at the same horizontal height.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the scope of the invention, but rather, the present invention is susceptible to various modifications and alternative forms as will occur to those skilled in the art. Any modifications or equivalent substitutions made by the present specification and drawings should be included in the scope of the present invention, which is also encompassed within the spirit and principles of the present invention, directly or indirectly applied to other related technical fields.
Claims (9)
1. The single-side hot-bending forming die for the hot-bending product comprises a main body plane part and an arc surface part arranged at one end of the main body plane part, and is characterized in that the forming die comprises an upper die and a lower die (3) which are arranged up and down and are connected in a clamping manner, a cavity for accommodating the hot-bending product is formed in the lower die (3), the upper die comprises an upper die I (1) and an upper die II (2) which are arranged in a split manner, the upper die I (1) and the upper die II (2) are respectively and correspondingly arranged right above the hot-bending product plane part and the arc surface part, an arc-shaped structure (4) for pressing the product to be bent is fixedly arranged on the lower surface of the upper die II (2), and a pressing block I (5) and a pressing block II (6) are respectively arranged above the upper die I (1) and the upper die II (2);
the vertical side of arc structure (4) is provided with the lug cavity lateral wall of lower mould (3) be provided with the recess of lug matching, through the block connection of lug and recess in order to avoid go up mould two (2) take place horizontal displacement when pushing down.
2. Single-sided hot-bending forming die according to claim 1, characterized in that a dust cover (7) is also provided on the outside of the die to prevent dust from entering the die and causing defects in the appearance of the product.
3. The single-sided hot-bending forming die according to claim 2, wherein the mass of the second press block (6) is larger than the mass of the first press block (5).
4. A single-sided hot-bending forming die according to claim 3, wherein the mass of the first pressing block (5) is 2.75-3.25kg, and the mass of the second pressing block (6) is 3.75-4.25kg.
5. The single-sided hot-bending mold of claim 4, wherein the hot-bent product is a glass product.
6. The single-sided hot-bending forming die according to any one of claims 1 to 5, wherein the maximum thickness of the total thickness of the upper die two (2) and the arc-shaped structure (4) is the same as the thickness of the upper die one (1), so that the upper surfaces of the upper die one (1) and the upper die two (2) are at the same level before the product is not hot-bent.
7. The single-sided hot-bending forming die according to claim 6, wherein the thickness of the first upper die (1) and the second upper die (2) is set such that the bottom surface of the first upper die (1) and the bottom surface of the second upper die (2) are in the same plane after the hot pressing is completed.
8. The single-sided hot-bending forming die according to any one of claims 1 to 5, wherein the arc-shaped structure (4) further comprises a bottom plane structure arranged at the end part of the hot-bending product, the length of the bottom plane structure in the length direction of the hot-bending product is set to be that the bottom plane structure is flatly pressed on the hot-pressing product before the hot-bending product is hot-pressed, and the bottom plane structure is matched with the end plane of the cavity after the hot-bending product is hot-pressed.
9. The single-sided hot-bending forming die according to claim 8, wherein the length of the bottom plane structure in the length direction of the hot-bent product is set as a difference between an arc length of the hot-bent product after hot bending and a projection length of the arc length corresponding to a horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193173.5A CN108218200B (en) | 2016-12-21 | 2016-12-21 | Unilateral hot bending forming die of hot bending product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193173.5A CN108218200B (en) | 2016-12-21 | 2016-12-21 | Unilateral hot bending forming die of hot bending product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108218200A CN108218200A (en) | 2018-06-29 |
| CN108218200B true CN108218200B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611193173.5A Active CN108218200B (en) | 2016-12-21 | 2016-12-21 | Unilateral hot bending forming die of hot bending product |
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| CN (1) | CN108218200B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557402A (en) * | 2010-12-11 | 2012-07-11 | 富泰华工业（深圳）有限公司 | Forming method of curved glass plate and adopted mould thereof |
| CN204262180U (en) * | 2014-11-24 | 2015-04-15 | 江麓机电集团有限公司 | A kind of thin-walled tube bending-forming mold |
| CN204817707U (en) * | 2015-07-14 | 2015-12-02 | 深圳市精创科技有限公司 | Unilateral positioner that bends |
| CN205183518U (en) * | 2015-11-18 | 2016-04-27 | 祥鑫科技股份有限公司 | Tensile mould is prevented to unilateral taking shape |
| CN105731772A (en) * | 2016-02-02 | 2016-07-06 | 凯茂科技(深圳)有限公司 | Glass cover plate hot bending die and hot bending preparation system and process of glass cover plate |
| CN205735968U (en) * | 2016-06-23 | 2016-11-30 | 蓝思科技股份有限公司 | A kind of mould for hot bending and forming machine |
| CN205740729U (en) * | 2016-06-23 | 2016-11-30 | 蓝思科技股份有限公司 | Flat panel products hot bending is the mould with more than two curl products and forming machine |
| CN206375818U (en) * | 2016-12-21 | 2017-08-04 | 蓝思科技（长沙）有限公司 | A kind of unilateral bending mould of hot bending product |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101642314B1 (en) * | 2011-06-24 | 2016-07-25 | 삼성전자주식회사 | Glass manufacture method and mold for glass manufacture |
-
2016
- 2016-12-21 CN CN201611193173.5A patent/CN108218200B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557402A (en) * | 2010-12-11 | 2012-07-11 | 富泰华工业（深圳）有限公司 | Forming method of curved glass plate and adopted mould thereof |
| CN204262180U (en) * | 2014-11-24 | 2015-04-15 | 江麓机电集团有限公司 | A kind of thin-walled tube bending-forming mold |
| CN204817707U (en) * | 2015-07-14 | 2015-12-02 | 深圳市精创科技有限公司 | Unilateral positioner that bends |
| CN205183518U (en) * | 2015-11-18 | 2016-04-27 | 祥鑫科技股份有限公司 | Tensile mould is prevented to unilateral taking shape |
| CN105731772A (en) * | 2016-02-02 | 2016-07-06 | 凯茂科技(深圳)有限公司 | Glass cover plate hot bending die and hot bending preparation system and process of glass cover plate |
| CN205735968U (en) * | 2016-06-23 | 2016-11-30 | 蓝思科技股份有限公司 | A kind of mould for hot bending and forming machine |
| CN205740729U (en) * | 2016-06-23 | 2016-11-30 | 蓝思科技股份有限公司 | Flat panel products hot bending is the mould with more than two curl products and forming machine |
| CN206375818U (en) * | 2016-12-21 | 2017-08-04 | 蓝思科技（长沙）有限公司 | A kind of unilateral bending mould of hot bending product |
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| Publication number | Publication date |
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| CN108218200A (en) | 2018-06-29 |
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