EP4448460A1 - Umformvorrichtung und verfahren zum umformen eines dünnglases - Google Patents
Umformvorrichtung und verfahren zum umformen eines dünnglasesInfo
- Publication number
- EP4448460A1 EP4448460A1 EP22826660.7A EP22826660A EP4448460A1 EP 4448460 A1 EP4448460 A1 EP 4448460A1 EP 22826660 A EP22826660 A EP 22826660A EP 4448460 A1 EP4448460 A1 EP 4448460A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- forming
- unit
- thin glass
- heating
- station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending
- C03B23/0352—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet
- C03B23/0357—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet by suction without blowing, e.g. with vacuum or by venturi effect
-
- 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
Definitions
- Forming device and method for forming thin glass The invention relates to a forming device and a method for forming, in particular for non-isothermal forming, thin glass.
- Forming devices for forming thin glass are known in principle. The process can be carried out isothermally or non-isothermally.
- the thin glass is positioned on the mold, for example a die, and heated together with the mold. The heating takes place, for example, by means of heating cartridges, which are usually integrated in an embossing stamp.
- the thin glass and the embossing die are at the same temperature.
- the thin glass and the mold are also at the same temperature.
- the forming tool Since the forming tool is heated for each forming with the thin glass and has to be cooled again after forming, long heating times and long cycle times result.
- Another disadvantage of isothermal process control is increased tool wear, which is caused by repeated heating and cooling.
- a reduction in the cycle time is only possible with a large number of molds arranged in parallel.
- forming Devices with an isothermal process control are expensive and the molds have a shorter service life.
- the thin glass is heated independently of the mold in a heating device provided for this purpose and then transported from the heating device to the tool with a handling step, for example a gripper arm.
- the transport from the heating device to the mold is a process-critical step, since the thin glass is dimensionally unstable in the heated state and can only be grasped to a limited extent or not at all.
- the transport leads to a thermal influence on the heated thin glass, as a result of which it regularly does not have the desired temperature or the desired temperature distribution during the forming process.
- a further disadvantage of the transport is that external influences, for example particles, have a negative effect on the quality of the thin glass and the glass product to be produced from the thin glass. Because of this, isothermal processes are currently predominantly used for the forming of thin glass, since non-isothermal processes are generally not applicable or can only be used to a limited extent and are associated with losses in quality.
- such thin glasses are optionally ground and/or polished.
- the grinding and polishing of thin glass is not scalable or only to a limited extent, so that it is not suitable for use in series production.
- Another solution is to use a large number of molds that are loaded with thin glass and heated sequentially. The heating takes place by means of heating cartridges. With this solution, the mold tools are heated at the same time as the thin glass, making it an isothermal process with high costs and usually high tool wear.
- a forming device for forming, in particular for non-isothermal forming, of thin glass comprising at least one heating station with a heating unit that is arranged and designed to emit thermal radiation, at least one adjacent to forming station arranged in the heating station for forming the thin glass, a transfer unit with a holding frame for holding the thin glass, in particular in an edge region, and a transfer device for moving the transfer unit along a transfer path which comprises the at least one heating station and the at least one forming station, the transfer device is arranged and designed to move the transfer unit discontinuously, the heating unit being arranged and designed in such a way that the thin glass held by the holding frame can be heated with the thermal radiation emitted by the heating unit.
- the invention is based, inter alia, on the finding that the process for isothermal forming of thin glass by means of transfer dies can be converted into a non-isothermal process if the heating unit is designed to emit thermal radiation.
- the heating unit is designed to emit thermal radiation.
- the thin glass can be heated in a targeted manner without an optionally present forming unit being heated in the same way.
- the transfer unit has a forming unit, as will be described in more detail below, such a radiant heating unit can prevent this forming unit from being heated to the same temperature as the thin glass.
- the forming device is designed for the non-isothermal forming of thin glass.
- Thin glass is understood to mean, in particular, a glass blank whose areal extent is many times greater than its thickness.
- the thin glass can be characterized by a planar and/or flat design or by a defined geometry of the semi-finished product.
- the thin glass can be provided, for example, as a rectangular blank or as a free-form blank.
- the thin glass can be, for example, profiled glass, flat glass and/or a semi-finished glass product.
- the thin glass can, for example, have a thickness between 200 ⁇ m and 5 mm, in particular between 500 ⁇ m and 3 mm.
- Formed thin glasses of this type can be used, for example, as screen covers for smartphones, control panels in automobile interiors or as encapsulating glasses in medical sensors.
- the forming device includes the at least one heating station with the heating unit.
- the heating unit is designed to emit thermal radiation, so that the heating unit can heat the thin glass by means of this radiation, also known colloquially as thermal radiation.
- the heating unit can be or include a radiant heater, for example.
- the heating unit can be designed in several parts. It is particularly preferred that the heating unit has two or more radiant heaters and/or reflectors.
- the radiant heaters and reflectors can be arranged, for example, as a U-profile or as a semicircular profile.
- the heating unit is also arranged and designed in such a way that the thin glass held by the holding frame can be heated with the thermal radiation.
- the heating unit is designed to emit the thermal radiation.
- the heating unit has the advantage that an object, here the thin glass, is heatable.
- the thin glass can be heated in a targeted manner with the heating unit and a forming unit that may be located under the thin glass is not heated to the same extent as the thin glass. It is a non-isothermal process.
- the forming device also includes the at least one forming station, which is arranged adjacent to the heating station, for forming the thin glass.
- the forming station is arranged in particular along the transfer section behind the heating station in the direction of movement of the transfer unit.
- the transfer section is preferably aligned essentially horizontally. Further preferably, the transfer path can be linear and/or curved. A curved design of the transfer section is possible, for example, by constructing the forming device with or as a rotary table.
- the thin glass can be formed at the forming station in two different ways.
- the forming station can have the forming unit.
- the thin glass is moved along the transfer line with the transfer unit and transferred to the forming unit at the forming station, so that the thin glass can be formed with the forming unit.
- the transfer unit can have the forming unit, so that the forming unit is moved with the transfer unit along the transfer path.
- the forming station can have, for example, a vacuum unit that can be coupled to a forming unit, which is arranged and configured to generate a vacuum in a cavity of the forming unit, so that the thin glass can be formed into the cavity.
- the forming station preferably has one, two or more radiant heaters in order to apply thermal radiation to the thin glass before, during and/or after the forming.
- the forming device includes the transfer unit with the holding frame for holding the thin glass.
- the holding frame can be rectangular, for example. It is preferred that the holding frame is designed in such a way that it can be used to hold the thin glass in an edge area of the thin glass. It is particularly preferred that the holding frame does not influence a forming section of the thin glass or only influences it to a limited extent.
- the Transfer unit is arranged and designed in particular to be moved from the at least one heating station to the at least one forming station.
- the forming device includes the transfer device.
- the transfer device is designed to move the transfer unit along the transfer section, which includes the at least one heating station and the at least one forming station. This means in particular that the transfer device is arranged and designed to move the transfer unit from the at least one heating station to the at least one forming station. Furthermore, the transfer device is arranged and designed to move the transfer unit discontinuously along the transfer path. Discontinuous means, in particular, step by step, with the transfer unit remaining in one position, for example the heating station, for a predefined time and then being moved on, in particular to the forming station. It can be ensured that the thin glass remains in the at least one heating station long enough to be heated in a predefined manner and then remains in the forming station for the corresponding time in order to bring about the forming of the thin glass.
- the thin glass is preferably moved with the holding frame through an exit lock and then removed from the forming device. This takes place in particular in a removal direction that is aligned orthogonally to the transfer section.
- the at least one forming station has a forming unit, in particular a die, and the transfer unit can be arranged on the forming unit in such a way that the thin glass held by the holding frame can be formed with the forming unit and the forming station.
- only the at least one forming station has a forming unit.
- the thin glass is heated with the at least one heating station, while it is held by the holding frame of the transfer unit. Preferably no forming unit is provided within the heating station.
- the thin glass is introduced into the forming device by means of the transfer unit, heated by means of the at least one heating station and then moved to the forming station by means of the transfer unit, where the transfer unit is arranged on the forming unit and then the thin glass is formed with the forming unit and the forming station.
- the forming station can bring about, for example, by the forming station causing a negative pressure or vacuum in a cavity of the forming unit and the thin glass being formed into the cavity. Furthermore, the reshaping can be effected by subjecting the upper side of the thin glass to an overpressure.
- the forming unit can consist of steel, ceramics and/or graphite, for example, or can include these materials.
- the forming unit is preferably designed for vacuum-assisted sinking and/or bending and/or for vacuum-assisted deep-drawing.
- the forming unit can be designed for compressed air forming. It is preferred that the forming unit is arranged so that it can move vertically.
- the forming unit can be moved vertically between a lower position and an upper position, with the thin glass being formed with the forming unit in the upper position of the latter.
- the forming unit is preferably in the lower position when the transfer unit is moving, so that the transfer unit with the thin glass can move without being disturbed by the forming unit.
- the heated thin glass may have a deflection, whereby a deflected portion of the thin glass could collide with the forming unit located in the upper position.
- a further preferred embodiment of the forming device is characterized in that the transfer unit has a forming unit, in particular a die, wherein the thin glass held by the holding frame can be formed with the forming unit and the forming station.
- the transfer unit as such includes the forming unit, so that the forming unit is moved by the forming device.
- the transfer unit with the holding frame and the forming unit is thus introduced into the forming device, runs through the at least one heating station and is brought to the forming station, so that the heated thin glass can be formed with the forming unit and the forming station at the forming station.
- the forming unit can be arranged in particular at the forming station in such a way that the heated thin glass can then be formed.
- the holding frame is preferably arranged vertically above the forming unit.
- the holding frame can also be arranged offset at an angle to the forming unit in such a way that the thin glass is located vertically above the forming unit and can be formed with the forming unit at the forming station.
- the holding frame and the forming unit are preferably connected to one another. Since the thin glass can be heated in a targeted manner with the heating unit, a non-isothermal process control is also possible with such a forming device, since the forming unit cannot be heated to the same temperature as the thin glass. This is due, among other things, to the fact that the thin glass can be heated more quickly than the solid forming unit.
- the thin glass can be formed using either vacuum forming or deep drawing.
- the forming unit can have an induction unit which is arranged and designed to inductively heat the forming unit.
- a preferred embodiment variant of the forming device is characterized in that the heating unit is arranged and designed in such a way that the Thin glass can be heated independently of the forming unit, in particular the forming unit of the transfer unit.
- the fact that the thin glass can be heated independently of the forming unit means in particular that the thin glass and the forming unit have different temperatures after the thin glass has been heated.
- a further preferred development of the forming device is characterized in that the heating unit has an adjustable radiation profile in order to direct the thermal radiation onto the thin glass, so that the thin glass can be heated independently of the forming unit.
- Heating units for emitting thermal radiation have the advantage that an area to be heated can be set with a radiation profile. As a result, less energy is required since the energy used is directed essentially exclusively at the thin glass and this is heated. Furthermore, the forming device with the adjustable radiation profile can be adapted to different sizes of thin glass. It is particularly preferred that the heating unit has an exchangeable radiation shield in order to adjust the radiation profile.
- the forming device can have a first radiation screen and a second radiation screen, which can be exchanged manually or automatically.
- the first radiation shield can be used for smaller thin glass and the second radiation shield can be used for larger thin glass.
- the different radiation screens can also be used to set different temperatures on the thin glass.
- the heating unit has an adjustable radiation screen in order to adjust the radiation profile.
- the radiation screens are exchangeable and adjustable.
- a further preferred development of the forming device is characterized in that the at least one heating station defines a heating position and a thin glass positioned in the heating position is arranged vertically under the heating unit, so that the thermal radiation hits the thin glass vertically. That the Thermal radiation hitting the thin glass vertically means in particular that there is a vertical directional component here. It is also preferred that thermal radiation strikes the thin glass and/or the transfer unit in a vertical direction in order to set a heating profile of the thin glass.
- the thin glass positioned vertically under the heating unit which is vertically exposed to the thermal radiation, has an advantageous temperature profile and heats up quickly.
- the heating unit preferably has radiant heaters which are arranged in the shape of a half-shell.
- a further preferred development of the forming device is characterized in that the heating unit is arranged so that it can be adjusted in height in order to set the radiation profile and/or a radiation intensity.
- a height-adjustable heating unit is characterized in particular by the fact that the elements of the heating unit that emit the thermal radiation can be moved vertically. With a height-adjustable heating unit, an improved temperature profile and faster heating of the thin glass can be achieved.
- the temperature of the heating unit, in particular of the at least one radiant heater can be adjusted so that the heating of the thin glass can be adjusted.
- a further preferred embodiment variant of the forming device comprises two or more heating stations, which form a heating section, along which the transfer unit can be moved discontinuously, the two or more heating stations being set up in such a way that a glass temperature of the thin glass increases along the heating section in the direction of the at least one forming station .
- the heating section is to be understood in particular as part of the transfer section.
- the heating section is in particular a first part of the transfer section.
- a forming section can follow the heating section. It is preferable that the two or more heating stations each have a heating unit emitting thermal radiation. In particular, the heating units of the two or more heating stations are set up to increase the glass transition temperature of the thin glass along the heating section.
- a first heating station can be arranged at the start of the transfer line, followed by a second heating station and then a forming station.
- the thin glass would first be moved with the holding frame of the transfer unit to the first heating unit and heated there to a first temperature, for example 100°C. After this temperature has been reached, the thin glass is moved on to the second heating station with the holding frame of the transfer unit, so that the thin glass is heated here, for example, to a glass temperature of 200°C. After this temperature has been reached, the thin glass is moved with the holding frame of the transfer unit to the forming station and formed there.
- a further preferred development of the forming device comprises a positioning unit which is arranged and designed to position, in particular to fasten, the holding frame on the forming unit, with the positioning unit positioning the holding frame in such a way that a forming section of the thin glass is not shaded when viewed vertically from above is arranged. So that a process-reliable forming takes place, it is provided that the holding frame is positioned and preferably fixed on the forming unit.
- the thin glass is not shaded so that, on the one hand, undisturbed forming and, moreover, a possible further heating of the thin glass is possible. Unshadowed is a term from thin glass forming known to those skilled in the art, which means in particular that there are no unnecessary elements above the thin glass.
- the forming device comprises a process chamber, with the at least one heating station and the at least one forming station being arranged in the process chamber, and with an entry into and an exit from the process chamber being designed in such a way that a protective gas atmosphere can be formed inside the process chamber .
- a protective gas atmosphere in the process chamber, a higher quality production of products made of thin glass is possible.
- a nitrogen atmosphere can prevail in the process chamber due to the introduction of nitrogen.
- the process chamber can also have two or more inlets and/or two or more outlets. It is preferred that the process chamber has an inlet lock and an outlet lock, through which the transfer unit can be moved.
- a further preferred embodiment variant of the forming device is characterized in that the transfer device has two adjacent rails which are aligned parallel to the transfer section and the transfer unit can be arranged between the rails and guided by the rails.
- the two rails adjacent to each other extend from the inlet to the outlet.
- the transfer unit is arranged to be linearly movable with the two rails that are adjacent to one another, with this linear movement preferably being aligned horizontally.
- Each of the rails preferably includes a support rail on which the transfer unit, in particular the holding frame, rests. Furthermore, each rail can have a guide rail, which guides the transfer unit laterally.
- a transfer unit is arranged at each heating station and forming station and that these can be moved discontinuously from the transfer device to the next station or the station after that.
- a further preferred embodiment variant of the forming device comprises at least one cooling station for cooling the formed thin glass, the transfer device being arranged and designed to move the transfer unit from the at least one forming station to the cooling station.
- the forming device has two or more cooling stations for the gradual cooling of the formed thin glass.
- the cooling station can have one, two or more radiant heaters in order to adjust the temperature profile of the formed thin glass.
- the at least one cooling station can also be a quenching station for cooling and/or solidifying the thin glass.
- the quenching station can be designed, for example, to emit gas at a low temperature.
- Another preferred embodiment of the forming device is characterized in that it includes an optical sensor for detecting the glass temperature of the thin glass.
- the glass transition temperature can in particular be a surface temperature of the thin glass.
- the optical sensor is preferably arranged along the transfer section, in particular the heating section.
- the optical sensor is preferably arranged within or between two stations.
- the optical sensor can be arranged within the at least one heating station.
- it can be preferred that the optical sensor is arranged between the at least one heating station and the at least one forming station.
- the forming device can include a graphite unit arranged inside the process chamber for reducing the oxygen content.
- the graphite unit is arranged above the at least one forming station and/or the at least one heating station. It is preferred that the graphite unit has a higher temperature than the forming unit during normal operation. As a result, a chemical reaction with oxygen occurs primarily at the graphite unit and not at the forming units, which are also made of graphite or may include graphite.
- a further preferred embodiment variant of the forming device comprises a control device which is set up to control the at least one heating unit in such a way that the thin glass is heated to a predetermined temperature. It is preferred that the control device takes into account a predetermined deflection of the thin glass when controlling the heating unit and controls the heating unit in such a way that the predetermined deflection of the thin glass is not exceeded.
- the deflection of the thin glass can be accepted if the deflected thin glass is picked up by a vertically moving forming unit, for example.
- Thin glass in particular, has a dimensionally unstable property above a defined temperature. A movement of the heated thin glass with the holding frame is no longer possible above a certain temperature. Efficient and safe movement of the thin glass through the forming device can be ensured through a targeted control of the temperature.
- the control device is preferably set up to control the forming station and the forming unit in such a way that the thin glass can be formed by means of step-by-step deep-drawing.
- the forming device is set up to provide an inert gas in the cavity of the forming unit comprised by the transfer unit before it enters the process chamber, so that essentially no oxygen remains between the forming unit and the thin glass.
- the forming device comprises a temperature measuring unit, in particular a pyrometer, which is arranged and designed to determine a temperature of the thin glass and/or the forming unit, and the control device is set up to control the heating unit in such a way that a predetermined temperature of the thin glass and / or the forming unit is adjustable.
- the temperature measuring unit is arranged and designed to determine the temperature of the thin glass and/or the forming unit after the forming of the thin glass, and the control device is set up to control the cooling unit in such a way that the thin glass is cooled with a predetermined cooling profile .
- This can be done, for example, by blowing the thin glass step by step.
- the gradual blowing can, for example, comprise alternating blowing with blowing pauses.
- a cooling medium of the cooling unit can be tempered. It is particularly preferred that the control device controls the cooling unit in such a way that the thin glass does not experience any thermal shock.
- FIG. 1 a schematic, two-dimensional view of an exemplary embodiment of a forming device
- FIG. 2 shows a schematic, two-dimensional view of a further exemplary embodiment of a forming device
- FIG. 3 a schematic, two-dimensional view of an exemplary embodiment of a holding frame
- FIG. 4 a schematic view of a further exemplary embodiment of a forming device
- the heating units 108, 116, 120 each have a large number of heating elements 110 for emitting thermal radiation.
- the thin glasses 102, 104 and the other thin glasses not provided with a reference number are moved from right to left by means of transfer units 126.
- the transfer units 126 have holding frames 128, 132 with which the thin glasses 102, 104 are held.
- the holding frames 128, 132 can be designed in two or more parts, in particular comprising an upper frame and a lower frame, so that a thin glass 102, 104 can be clamped between the upper and the lower frame.
- the transfer units 126 enter the process chamber 150 at a chamber inlet 152, in which the heating stations 106, 114, 118, a forming station 124 and a cooling station 144 are arranged. After they have entered the process chamber 150, the transfer units 126 first reach the heating station 106. There the thin glass is heated with the heating unit 108. This can be done in a targeted manner. After the thin glass 102 has reached a predetermined temperature or has spent a predetermined time in the heating station 106, it is moved to the heating station 114 with a transfer device, not shown here. The thin glass is further heated in the heating station 114 in order to then be further heated in the heating station 118 in order to then be moved to the forming station 124 .
- a forming unit 134 is arranged at the forming station 124 .
- the forming unit 134 has a cavity 136 which represents a negative form of the glass product to be produced with the thin glass.
- the cavity 136 is fluidically coupled to a vacuum unit 130, so that a negative pressure or a vacuum can be produced in the cavity 136 under the thin glass 104, so that the heated and deformable thin glass 104 can be molded into the cavity 136 by means of the negative pressure or the vacuum.
- the holding frame 132 is arranged on the forming unit 134 for this purpose. For this purpose, the forming unit 134 was previously moved into a vertically lower position, so that the holding frame 132 could be positioned vertically above the forming unit 134 .
- the holding frame 132 is also positioned and fastened to the forming unit 134 with a positioning unit 138 in that the positioning unit 138 presses the holding frame 132 against the forming unit 134 by means of a longitudinal element 142 .
- the longitudinal element 142 is guided vertically with guide elements 140 so that it can be moved in the vertical direction.
- the longitudinal element 142 can be moved vertically upwards, so that the holding frame 132 can be moved to the cooling station 144 with the transfer device.
- the cooling station 144 has a cooling unit 146 with a large number of cooling elements 148 .
- the cooling elements 148 can be gas-emitting elements, for example, which are arranged in such a way that the thin glass 158 arranged below them is exposed to the gas and is quenched and/or cooled.
- Two or more cooling stations 144 can also be provided. After the thin glass with the holding frame has passed through the cooling station 144, the thin glass with the holding frame can be removed from the chamber outlet 154.
- An entry lock is arranged at the chamber entry 152 and an exit lock is arranged at the chamber exit 154 , each of which has the effect that when a transfer unit enters and exits the process chamber 150 , there is no contamination of the process chamber with air.
- step 602 the holding frame 128, 132, 220, 228, 300, 404, 504 is moved to a heating unit 108, 116, 120, 208, 216 and heated with thermal radiation.
- step 604 the support frame 128, 132, 220, 228, 300, 404, 504 is moved to a forming station 124, 224, 406, 506.
- step 606 the thin glass is formed with a forming unit 134, 222, 230, 408, 508.
- step 608 the holding frame 128, 132, 220, 228, 300, 404, 504 is moved out of the forming station 124, 224, 406, 506.
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
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021133071.8A DE102021133071A1 (de) | 2021-12-14 | 2021-12-14 | Umformvorrichtung und Verfahren zum Umformen eines Dünnglases |
| PCT/DE2022/100941 WO2023110021A1 (de) | 2021-12-14 | 2022-12-12 | Umformvorrichtung und verfahren zum umformen eines dünnglases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4448460A1 true EP4448460A1 (de) | 2024-10-23 |
Family
ID=84541469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22826660.7A Pending EP4448460A1 (de) | 2021-12-14 | 2022-12-12 | Umformvorrichtung und verfahren zum umformen eines dünnglases |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4448460A1 (de) |
| DE (1) | DE102021133071A1 (de) |
| WO (1) | WO2023110021A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1001883A5 (nl) | 1987-11-06 | 1990-04-03 | Nippon Sheet Glass Co Ltd | Werkwijze voor het maken van een glazen voorwerp met glad oppervlak. |
| GB9416893D0 (en) * | 1994-08-20 | 1994-10-12 | Triplex Safety Glass Co | Heating and bending glass sheets |
| CN102757169B (zh) * | 2012-07-20 | 2014-08-20 | 福耀玻璃工业集团股份有限公司 | 一种用于弯曲玻璃板的弯曲炉和方法 |
| WO2014054468A1 (ja) | 2012-10-02 | 2014-04-10 | 旭硝子株式会社 | 合わせガラスの製造方法 |
| US10479052B2 (en) | 2014-08-20 | 2019-11-19 | Corning Incorporated | Methods of forming shaped glass articles from glass sheets |
| KR102541450B1 (ko) | 2015-10-29 | 2023-06-09 | 삼성디스플레이 주식회사 | 표시 장치의 제조장치 및 표시 장치의 제조방법 |
| JP2019514820A (ja) | 2016-04-04 | 2019-06-06 | ピーピージー・インダストリーズ・オハイオ・インコーポレイテッドPPG Industries Ohio,Inc. | ガラス基板のマイクロ波焼き戻し |
-
2021
- 2021-12-14 DE DE102021133071.8A patent/DE102021133071A1/de active Pending
-
2022
- 2022-12-12 EP EP22826660.7A patent/EP4448460A1/de active Pending
- 2022-12-12 WO PCT/DE2022/100941 patent/WO2023110021A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021133071A1 (de) | 2023-06-15 |
| WO2023110021A1 (de) | 2023-06-22 |
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