CN117985928A - Multi-curved-surface glass forming device and forming method - Google Patents
Multi-curved-surface glass forming device and forming method Download PDFInfo
- Publication number
- CN117985928A CN117985928A CN202410104166.1A CN202410104166A CN117985928A CN 117985928 A CN117985928 A CN 117985928A CN 202410104166 A CN202410104166 A CN 202410104166A CN 117985928 A CN117985928 A CN 117985928A
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- glass
- heating
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- loading
- forming
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000007496 glass forming Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 85
- 239000011521 glass Substances 0.000 claims abstract description 72
- 238000000465 moulding Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 7
- 239000005357 flat glass Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- C03B23/0235—Re-forming glass sheets by 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
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
Landscapes
- 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 discloses a multi-curved-surface glass forming device and a forming method, and belongs to the technical field of glass forming products, wherein the forming device comprises a loading part for loading glass, a heating part for heating the glass is arranged above the loading part, a part of heating part is also arranged above the loading part, the part of heating part is at least one heating lamp tube, and the part of heating part is connected with a position adjusting part for adjusting the up-down left-right position of the part of heating part; the device and the method can control the warpage to be within 0.5mm in the manufacturing method of forming and slowly cooling processes, can form a U-shaped glass with a plane in the middle and curved ends at two sides, and can also control the warpage to be within 0.5mm when the curved glass is bent or has a C shape with two curvatures (such as R1500-2000 and R600-1000) connected by one-step process to form multi-curved W-shaped glass.
Description
Technical Field
The invention relates to the technical field of glass forming, in particular to a multi-curved-surface glass forming device and a multi-curved-surface glass forming method.
Background
In order to expand the visual field of automobile drivers and improve the concentration, at present, curved glass is used for front-end instrument panels and display screens of automobiles, particularly, an OLED screen with high pixels and low power consumption can be suitable for display screens of electric vehicles and automatic driving automobiles, and particularly, in order to meet the design of diversification of vehicles, the demands of multi-curved glass products are increasing. The OLED screen is different from the TFT-LCD screen with the 2D plane structure, and is attached to the display screen in the shape of multi-curved glass, so that the demand of the multi-curved glass is also increasing.
The multi-curved glass product is suitable for various electronic products, automobiles and the like, and glass cut according to the specification is heated to a softening temperature and then is processed and formed by a die. In the conventional half method, a mold device is provided with an upper mold part and a lower mold part, and a cut glass to be processed is placed between the upper mold part and the lower mold part, and only a portion to be processed is heated and pressed to form a curved surface shape. However, this method has a disadvantage in that it is difficult to mold glass having a curvature of R50 or less and glass having two or more curved surfaces by heating only a specific portion of the glass to cause bending or breakage of the glass and also to cause indentation.
Prior art, such as korean patent No. 10-1361854, discloses a glass forming mold apparatus and a glass forming system and method thereof, which include a heating device to heat a planar glass on a conveyor; the mold device comprises a lower mold part for receiving the primarily heated planar glass transferred by the conveyor, and an upper mold part for forming a curved surface by applying different vacuum suction pressures and heat to two positions of the transferred glass; and a cooling device for cooling the curved glass. According to the disclosed technology, the durability can be improved by forming curved surfaces by applying different vacuum suction pressures and heat to the planar glass, after the initial heating process of about 700 ℃, the curved surfaces are formed by using the mold device, the durability can be enhanced without severe temperature difference, the formed glass is cooled by the cooling device to improve the strength of the formed glass, the vacuum suction part of the upper mold device, the tray of the lower mold device and the reciprocating tray are inclined at a certain angle, the glass is prevented from bending during the forming of the curved surfaces, and the hardness of the glass can be enhanced.
For example, korean patent No. 10-1618844 discloses a glass molding method and apparatus thereof, which heats and softens a part of a flat glass to be bent, puts the flat glass to be heated and softened locally into a cavity formed by upper and lower molds to mold the part, injects high temperature gas into the cavity to form a gas layer between the mold and the cavity surface, thereby preventing the cavity surface and the flat glass from directly contacting each other, precisely controlling the warpage of the molded glass within a certain range, keeping the surface state of the glass good, and shortening the cooling time compared with heating the whole part of the molded flat glass due to heating only the part of the flat glass, thereby improving the production efficiency, reducing the occurrence of thermal deformation during cooling, thereby accurately controlling the warpage of the curved glass within a certain range, and further directly enabling the molded glass to be put into use without further processing. The technology is characterized by comprising a step of heating and softening a local part of the planar glass; a step of placing a flat glass sheet at the upper end of the lower die; when the lower die and the upper die are moved to be compounded, gas is injected into a cavity formed by the upper die and the lower die, so that a gas layer is formed between the planar glass and the die surface, and a link of a designated part of the planar glass is formed; and opening the upper die and the lower die and extracting the formed glass.
The prior art still cannot form glass with a plane in the middle and a U-shaped curved surface at the tail ends of two sides, because the heat transmission distance exceeds 60mm in the forming process, the softening temperature cannot be maintained for a certain time, and if the multi-curved W-shaped wing-shaped curved glass is to be formed, one procedure cannot be formed, and the multi-procedure is needed. As described above, in the conventional technique, when forming curved glass or multi-curved "C" glass having two or more curvatures (for example, R2000 and R800) connected, the warpage cannot be within 0.5 mm.
Disclosure of Invention
One of the objects of the present invention is to provide a multi-curved glass forming apparatus for solving the above-mentioned problems.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a multi-curved glass forming device, includes the loading part that is used for loading glass the top of loading part is provided with the heating portion that is used for heating glass, the top of loading part still is provided with partial heating portion, partial heating portion is at least one heating fluorescent tube, partial heating portion is connected with the position control portion that is used for adjusting partial heating portion about the position.
The present invention realizes the heating forming of multi-curved glass by providing a part of heating part and a position adjusting part on the basis of korean patent No. 10-1642314.
As a preferred technical scheme, the position adjusting part comprises at least two servo drivers, at least two micrometer calipers and at least two lifting moving rods, wherein the micrometer calipers are fixedly connected with the servo drivers, and the lifting moving rods are connected with the servo drivers.
As a further preferable technical scheme, the part of the heating part is two independent heating lamp tubes, and each heating lamp tube is formed by adjusting the position of the two servo drivers, the two micrometer calipers and the two lifting moving rods; the distance between the central line of the heating lamp tube and the surface of the glass is kept within 60 mm.
As a further preferable technical scheme, a lamp tube fixing clamp for fixedly connecting the heating lamp tube is arranged at the lower end of the lifting moving rod.
As the preferable technical scheme, the multi-curved glass is U-shaped glass with a plane in the middle and curved ends at two sides, or W-shaped glass with multiple curved surfaces, or C-shaped glass connected by two curvatures.
Another object of the present invention is to provide a method for molding a multi-curved glass molding apparatus, wherein the glass to be molded is loaded on the loading unit, the heating unit is started to heat, and the part of the heating unit is used to intensively heat the part requiring multi-curved molding, and the distance between the heating unit and the part requiring multi-curved molding is adjusted to be within 60mm in order to maintain the softening point temperature.
Compared with the prior art, the invention has the advantages that: the device and the method can control the warpage to be within 0.5mm in the forming and slow cooling processes, can form a U-shaped glass with a plane in the middle and curved ends at two sides, and also can form a multi-curved W-shaped glass by one process, and can control the warpage to be within 0.5mm when the curved glass is in a curved shape or is in a C shape with two curvatures (such as R1500-2000 and R600-1000) connected, and the curvature of the formed glass is as small as R30.
Drawings
FIG. 1 is a front view of a molding apparatus according to embodiment 1 of the present invention;
FIG. 2 is a top view of a molding apparatus according to embodiment 1 of the present invention;
FIG. 3 is a bottom view of the molding apparatus of embodiment 1 of the present invention;
FIG. 4 is a connection structure of the servo driver, micrometer caliper and lifting moving rod in embodiment 1 of the present invention;
FIG. 5 is a view showing the working state of the forming apparatus of example 1 of the present invention when used for forming "U" -shaped glass;
FIG. 6 is a diagram showing the operation of the embodiment 2 of the present invention when forming a "W" shaped glass;
FIG. 7 is a view showing the operation of the embodiment 3 of the present invention when forming a "C" shaped glass.
In the figure: 1. a first servo driver; 2. a second servo driver; 3. a first micrometer; 4. a second micrometer; 5. a first chute; 6. a third servo driver; 7. a fourth servo driver; 8. a third micrometer; 9. a fourth micrometer; 10. a first portion of heating lamps; 11. a second portion of the heating lamps; 12. a second chute; 13. an NIR heating lamp; 14. a connection part; 15. lifting the moving rod; 16. a lamp tube fixing clamp; 17. a bracket; 18. a motor; 19. a transmission rod.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The terms used in the present invention are as follows:
In the description, relational terms such as "first," "second," and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. For example, a first entity or operation may be named a second entity or operation, which may also be named a first entity or operation. It is assumed that one entity or operation is "connected" to another entity or operation, and it is understood that the entity or operation may be directly connected to the other entity or operation, or that other entity or operation may exist therebetween. Conversely, if one entity or operation is referred to herein as being "directly connected" to another entity or operation, then that entity or operation is understood to be absent from the middle. Moreover, the terms "between" and "between only" or "adjacent to" and "directly adjacent to" and the like of the relationship between the descriptive entities or operations apply to the description above.
The description is not intended to include the singular except where the plural is explicitly stated. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
No special definition of a term in the specification is intended to be implied by consistent usage of the term by a person skilled in the art. The commonly used dictionary-defined terms have the same meaning as the description of the related art and are not exaggerated or distorted except for the explicit definition of the present invention.
Examples
Referring to fig. 1 to 3, a multi-curved glass forming device comprises a loading part for loading glass, wherein a heating part for heating the glass is arranged above the loading part, a part heating part is also arranged above the loading part, the part heating part is at least one heating lamp tube, and the part heating part is connected with a position adjusting part for adjusting the up-down, left-right positions of the part heating part;
In this embodiment, the heating portion is composed of several NIR heating lamps 13, the NIR heating lamps are near infrared heating lamps, the part heating portion is two heating lamps, and is a first part heating lamp 10 and a second part heating lamp 11, the first part heating lamp 10 and the second part heating lamp 11 are also near infrared heating lamps, the first part heating lamp 10 and the second part heating lamp 11 are respectively adjusted in position by a position adjusting portion, where the first part heating lamp 10 corresponds to a first position adjusting portion, the first position adjusting portion includes a first servo driver 1, a second servo driver 2, a first micrometer caliper 3, a second micrometer caliper 4 and a lifting moving rod 15, the first servo driver 1 is connected with the first micrometer caliper 3 through a connecting portion 14, the second part heating lamp 11 corresponds to a second position adjusting portion, the second position adjusting portion includes a third servo driver 6, a fourth servo driver 7, a third micrometer caliper 8, a fourth micrometer caliper 9 and a lifting moving rod 15, and the second micrometer caliper 3 also includes a fixing bracket 17;
The left and right direction adjustment mode of the part heating part is as follows: the bracket 17 is provided with two sliding grooves in parallel, namely a first sliding groove 5 and a second sliding groove 12, the second servo driver 2 and the fourth servo driver 7 are connected to the first sliding groove 5 in a sliding way, the first servo driver 1 and the third servo driver 6 are connected to the second sliding groove 12 in a sliding way, two ends of the first part heating lamp tube 10 are connected with the first servo driver 1 and the second servo driver 2 through lifting moving rods 15 respectively, and the first servo driver 1 and the second servo driver 2 move in the corresponding sliding grooves through manual adjustment of corresponding micrometer calipers so as to synchronously move left and right, so that left and right movement of the first part heating lamp tube 10 is realized; the two ends of the second part heating lamp tube 11 are respectively connected with the third servo driver 6 and the fourth servo driver 7 through lifting moving rods 15, and the third servo driver 6 and the fourth servo driver 7 move in corresponding sliding grooves through manual adjustment of corresponding micrometer calipers so as to synchronously move and adjust left and right, so that left and right movement adjustment of the second part heating lamp tube 11 is realized;
The manner of adjusting the part of the heating part in the up-down direction is as shown in fig. 4: each servo driver is provided with a motor 18 and a transmission rod 19, one end of the transmission rod 19 is connected with the motor, the other end of the transmission rod 19 is fixedly connected with the lifting moving rod, the transmission rod 19 is driven by the motor 18 to drive the other end of the transmission rod 19 to move up and down, so that the lifting moving rod 15 moves up and down, the distance between the upper and lower moving is controlled by controlling the servo drivers and further controlling the starting and stopping of the motor in order to keep the softening point temperature, and the distance between a part of heating lamp tubes and the central position of the softening point is within 60mm, so that the distance can be controlled by a common technical means in the field;
the forming device of the embodiment is used for forming the U-shaped glass like that shown in FIG. 5; in fig. 5, the curvature of both partial heating points is R50.
Examples
The present embodiment is a forming device for forming a "W" shaped glass, the "W" shaped glass of the present embodiment has four curved portions, as shown in fig. 6, correspondingly, four partial heating lamps are provided, and similarly to embodiment 1, the center of each heating lamp is located on the same vertical line as the center of each curved portion, that is, aligned in the vertical direction, by adjusting a micrometer caliper, and the distance d between the center of each heating lamp and the center of each curved portion is kept within 60mm by adjusting a servo driver and thereby adjusting the position of each lifting moving rod in the vertical direction; in fig. 6, the curvature of the heating point at the leftmost and rightmost portions is R40, respectively.
Examples
The embodiment is a forming device for forming a "C" shaped glass, the "C" shaped glass of the embodiment has five curved portions, as shown in fig. 7, correspondingly, five partial heating lamps are provided, similarly to embodiment 1, the center of each heating lamp is located on the same vertical line with the center of each curved portion, that is, aligned in the vertical direction, by adjusting a micrometer caliper, and the distance d between the center of each heating lamp and the center of each curved portion is kept within 60mm by adjusting a servo driver and then adjusting the position of each lifting moving rod in the vertical direction; in fig. 7, the curvature of the five partial heating points ranges from R800 to 1500.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. The utility model provides a many curved glass forming device which characterized in that, includes the loading portion that is used for loading glass the top of loading portion is provided with the heating portion that is used for heating glass, the top of loading portion still is provided with partial heating portion, partial heating portion is at least one heating fluorescent tube, partial heating portion is connected with the position control portion that is used for adjusting partial heating portion about.
2. The multi-curved glass forming apparatus according to claim 1, wherein the position adjusting portion includes at least two servo drivers, at least two micrometer calipers, and at least two lifting moving rods, wherein the micrometer calipers are fixedly connected with the servo drivers, and the lifting moving rods are connected with the servo drivers.
3. The multi-curved glass forming apparatus according to claim 2, wherein the partial heating portion is two independent heating lamps, each of which is position-adjusted by two servo drivers, two micrometer calipers and two lifting/lowering levers; the distance between the central line of the heating lamp tube and the surface of the glass is kept within 60 mm.
4. The multi-curved glass forming apparatus according to claim 3, wherein a lamp tube fixing clip for fixedly connecting the heating lamp tube is provided at a lower end of the lifting moving rod.
5. The apparatus for forming multi-curved glass according to claim 1, wherein the multi-curved glass is a "U" shaped glass having a flat middle and curved ends on both sides, or a "W" shaped glass having a multi-curved surface, or a "C" shaped glass connected by two curvatures.
6. The method for molding by using the multi-curved glass molding apparatus according to any one of claims 1 to 5, wherein the glass to be molded is loaded on the loading part, the heating part is started to heat, and then a part of the heating part is used to intensively heat a part requiring multi-curved molding, and the distance between the heating part and the part requiring multi-curved molding is adjusted to be within 60mm in order to maintain the softening point temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410104166.1A CN117985928A (en) | 2024-01-25 | 2024-01-25 | Multi-curved-surface glass forming device and forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410104166.1A CN117985928A (en) | 2024-01-25 | 2024-01-25 | Multi-curved-surface glass forming device and forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117985928A true CN117985928A (en) | 2024-05-07 |
Family
ID=90890661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410104166.1A Pending CN117985928A (en) | 2024-01-25 | 2024-01-25 | Multi-curved-surface glass forming device and forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117985928A (en) |
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2024
- 2024-01-25 CN CN202410104166.1A patent/CN117985928A/en active Pending
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