• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a method of bending a glass sheet to be tempered as well as to a glass sheets bending and tempering apparatus. An array of conveyor rollers in a glass sheets bending and tempering section is adapted to be curved around an axis of curvature transverse to the traveling direction in a manner that, beginning from a horizontal plane, the plane of a roller line curves with a continuously diminishing radius of curvature until the final radius of curvature is reached. During the curving process, the tangent of the mid-portion of a curved conveyor section is maintained substantially in a horizontal plane. Thus, each point in a glass sheet curves substantially at the same rate over the entire glass sheet area and, hence, local rapid deformations do not occur. During the curving process, a glass sheet is maintained in motion by means of the rollers of a curved roller conveyor.
    公开号:SU1577692A3
    申请号:SU874355022
    申请日:1987-09-21
    公开日:1990-07-07
    发明作者:Тапани Реунамяки Паули；Калеви Ярвинен Йоуко
    申请人:Тамгласс Ой (Фирма)；
    IPC主号:
    专利说明:

    unloading. The Kavda section and the heating furnace are equipped with conveyors with horizontal rollers located transversely to the direction of the engine, namely the conveyor of the loading section 6, the furnace conveyor 7, the intermediate conveyor 8 at the exit of the furnace, the conveyor 9 of the bending and tempering section, the conveyor 10 of the annealing section and conveyor 11 unloading section.
    The furnace is equipped with thermal resistances 12, the bending and backing off stages have cooling air forcing devices 13 and the annealing section is equipped with less efficient cooling air forcing devices 14.
    The motor M 1 drives the conveyor of the furnace 7 in an oscillatory mode, for example, in such a way that the oscillations directed forward are performed with a longer stroke than the return oscillations preceding or following them. The advancement of loading from the glass sheets in the furnace is carried out in this manner gradually and intermittently during these long oscillatory strokes. Thus, there are many different loads of glass sheets in the furnace, each from a different heating stage, which are located one behind the other and as close as possible to each other.
    The other ends of the furnace conveyor 7 exit from one side of the furnace and are connected to the pulleys against which the pressure wheels press the steel tape 15, which passes in an infinite loop over the reversing wheels 16 and 17. The motor Ml drives the reversing wheel 17.
    The other conveyors 6, 8 and 11 may be driven by endless chains 18S connected to sprockets (sprockets) at the ends of the roller conveyor.
    The motor M2 drives the conveyor 9 of section 3 of the bend and tempering in an oscillatory mode in such a way that the load from the specified glass sheets in the bend and tempo section moves reciprocally for the same distance forward and backward. The motor M 3 drives the conveyor 10 of the specified annealing section also in an oscillatory mode.
    When the conveyor of the furnace 7 makes a long stroke forward, the switch K 1
    five
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    is closed, and the fresh loading of the glass sheets is moved from the loading 6 to the furnace 7 conveyor.
    At the end of the forward oscillatory stroke of the furnace conveyor 7, the switch K 2 opens and the switch K 8 closes, the intermediate conveyor 8 moves together with the conveyor 7 or 9 through the intermediate power transmissions K 7 or K 3 depending on which conveyor 7 or 9 speed is higher. Initially, the speed of the conveyor 7 exceeds the speed of the conveyor 9, but the speed of the conveyor 7 decreases, and the speed of the conveyor 9 increases, resulting in a certain moment of speed being compared, and then the intermediate conveyor 8 is set in motion towards the conveyor 9. Conveyors 8 and 9 are driven the motor M 2 until the loading of the glass sheets is advanced on the conveyor 9 in the bending and tempering section. During this reloading run, the furnace conveyor 7 must be switched to reverse and start a return movement. During this overload, switch K 4 opens, so that the motor M 3 can first be used to drive conveyors 10 and 11 together to transfer the load from the glass sheets from firing section 4 to unload section 5, and then with switch K 6 open in the closed switch By 5, the conveyor 10 can move, and loading from the glass sheets onto the conveyor 10 can approach 1 to the conveyor 9 as far as possible in order to move the folded and tempered glass sheet from the conveyor 9 to the conveyor 10. In In this overload, the switches K 4 and K 6 are closed, and the switch K 5 is open, conveyors 9-11 are connected together and make a long transfer stroke due to the drive from the motor M 2.
    FIG. 3-5 show the rear end of the intermediate conveyor 8 and the front end of the annealing section 10, the conveyor 9 of the bending and tempering section connecting these sections together.
    The protrusions from the ends of the conveyor rollers 19 of the trunnion 20 connect the upper ends of the supporting parts 21 and 22 to each other so that they can rotate relative to each other.
    friend The outer bearings 21 and the inner bearings 22, together with the pins 20, form a flexible joint 21 and 22, which are evenly bent along its entire length.
    FIG. 4 shows the position of the trance.
    The new flat link chain, which, in the form of an arc, porter track 9, is flexible in an adjustable mode. At the outer ends of the axles 20, there are sprockets for driving the conveyor rollers into rotation.
    External support parts 21 are installed in pairs in parallel and at a distance from each other and fastened to each other by horizontal rods 23. Internal support parts 22 are installed in a similar way in pairs in parallel and at a distance from each other and fastened to each other by horizontal rods 24. Rods 23 and 24 have a roof-shaped inclined upper surface with a narrow flat support ridge 25 between them. The cooling air nozzles of the injection device 13 above the conveyor have a flexible casing 26, which is mounted on the supporting ridges 25 by the supporting surfaces 27.
    The rods 24 connecting the inner pairs of the supporting parts 22 have cylinders 28 rigidly attached thereto, and the piston rods 29 of these cylinders are connected by link 30 to the levers 31, whose ends, in turn, are connected by links 32 to the lower ends of the outer pairs supporting parts 21.
    Since the centers of the axes of symmetry of successive pairs of supporting parts. 21 and the centers of the axes of symmetry of the pairs of support parts 22 and the cylinders 28 associated with them in the side view are parallel, i.e. in this case, vertical, then the central axes of the rolls lie in a horizontal plane and the roller conveyor along its entire length is in the same plane as conveyors 8 and 10. Thus, there is a basic angle, for example, 90 ° between the fastening levers 31.
    The other ends of the rollers 19 are associated with a similar construction.
    When the piston rods (connecting rods) 29 of the cylinders 28 simultaneously move by the same distance, the angle between the levers 31 increases, resulting in an increase in the distance between the associated points 32. However, the distance between the trunnions 20 remains unchanged and, consequently, the structure formed by the supporting
    radiated by changing the angles between the reference parts 21 and 22. In the arc position of the track, the initial end of the path is curved downwards, the middle section
    10, the horizontal and end portion of the path rises. Thus, the conveyor path can be an arc with a very small bend radius without forming too large a angle of the lower end of the path relative to the horizontal plane. The curvature of the path can be quickly and accurately adjusted to the required limits by changing the displacement of the rods 29
    20 The direction of the nozzles of the cooling air injection device 13 above the conveyor always remains perpendicular to the conveyor, since the case 26 bends around its 25 eank points 33, resting on the supporting ridges 25, together with the conveyor.
    The nozzles of the cooling air blower, which are reinforced under the roller conveyor, are mounted
    30 on the rods that pass under the conveyor and connect the pairs of parts 21 and 22 on each side of the conveyor, whereby the nozzle line remains perpendicular to the curvilinear
    The surface of the conveyor. In this way, the cooling effect remains uniform over the entire length of the conveyor regardless of the degree of its curvature. The ends of the conveyor 9, which takes the form
    40 ARCS remain in the same plane as the ends of the conveyors 8 and 10. This is achieved due to the fact that the trunnions 20 of the end rollers of the conveyor 9 rest on the support frame of the transport45 DOM 8 and 10. Since the length of a row of rollers of the conveyor 9 remains unchanged and During the bending process, the frame of the conveyors 8 and 10 is provided with horizontal 5 versts 34 for the trunnion 20.
    The flexible design of the bearing case 26 of the nozzles of the device 13 for cooling air is calculated in such a way
    55
    This allows the casing 26 to bend only in the form of an arc in accordance with the maximum deviation of the conveyor 9. This makes it possible to lift the entire casing 26 from the conveyor 9 (Fig. 5), whereby the conveyor 9 can
    radiated by changing the angles between the reference parts 21 and 22. In the arc position of the track, the initial end of the path is curved downwards, the middle section
    the path is horizontal and the end portion of the path rises. Thus, the conveyor path may be an arc with a very small bend radius without forming a too large angle of the lower end of the path relative to the horizontal plane. The curvature of the track can be quickly and accurately adjusted to the required limits by changing the displacement of the rods 29.
    The direction of the nozzles of the cooling air injection device 13 over the conveyor always remains perpendicular to the conveyor, since the case 26 bends around its points 33, resting on the supporting ridges 25, together with the conveyor.
    The nozzles of the cooling air injection device, which are reinforced under the roller conveyor, are mounted
    on rods that pass under the conveyor and connect pairs of parts 21 and 22 on each side of the conveyor, whereby the neutral nozzle line remains perpendicular to the curvilinear
    the conveyor surface. Thus, the cooling effect remains uniform over the entire length of the conveyor, regardless of the degree of its curvature. The ends of the conveyor 9, which takes the form
    The arcs remain in the same plane as the ends of the conveyors 8 and 10. This is achieved due to the fact that the pins 20 of the end rollers of the conveyor 9 rest on the support frame of the conveyors 8 and 10. As the length of the row of conveyor rollers 9 remains unchanged and during the bending, the frame of the conveyors 8 and 10 is provided with horizontally elongated holes 34 for the journal 20.
    The flexible design of the bearing case 26 of the nozzles of the device 13 for cooling air is calculated in such a way
    This allows the casing 26 to bend only in the form of an arc in accordance with the maximum deviation of the conveyor 9. This makes it possible to lift the entire casing 26 from the conveyor 9 (Fig. 5), whereby the conveyor 9 can
    Life re-centered horizontally before removing curved and tempered glass from conveyor 9.
    The nozzles 13 and 35 of the cooling air injection device are located on opposite sides of the conveyor in such a way that their central lines coincide with the spaces between the conveyor rollers,
    The casing Јb is additionally connected to the nozzles 36 for injecting hot air located between the nozzles 13 and exactly matching the conveyor rollers.
    The bending and tempering of the glass sheets in the bending and tempering section 3 is carried out as follows.
    Conveyor 9 and nozzle cover 26 above them (Fig. 3), a flat sheet of glass moves from the top of the conveyor 8 to the conveyor 9. Immediately after the hanging edge of the glass sheet reaches the conveyor 9, or a little before, the bend of the conveyor 9 begins. At the same time, nozzles 36 are activated to force hot air onto the upper surface of the glass sheet. This increases the pressure applied to said upper surface and slows down the cooling rate of the glass sheet. Under the force of gravity and using the specified discharge pressure applied to the upper surface, the curvature of the conveyor is followed by the bending of the glass sheet and at the same time the glass sheet advances towards the exit end of the conveyor path 9. The final curvature is usually reached even before as the conveyor 9 stops for a return stroke. As the final curvature is reached, the injection of hot air through the nozzles 36 stops and the injection of cold air from the nozzles 13 and 35 onto both surfaces of the glass sheet begins. At the same time, the glass sheet oscillates back and forth on the conveyor 9. The duration of the cooling air injection period is determined by the thickness of the glass sheet. If a cold blast is supplied for a period sufficient to dispense the glass sheet, the nozzle casing 26 is raised (FIG. 5), and the conveyor track 9 is attached to the horizon
    five
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    waist form. Now the conveyor 9 is at the same level as the other sections of the path, and the curved glass sheet can be guided to the annealing section of the conveyor 10.
    Thereafter, the nozzle cover 26 is lowered again. In this case, the corresponding vertical guides are used (rod 37, Fig. 1) so that the central bearing surface 27 of the housing 26 necessarily falls on the central bearing ridge 25. Then the remaining supporting surfaces automatically slide onto the corresponding supporting ridges when the housing 26 is lowered as long as he has not been with the children on the conveyor belt 9.
    The bend and temper section is now ready to receive compressed glass sheet for bending and tempering.
    权利要求:
    Claims (7)
    [1]
    1. A device for bending glass sheets containing a furnace with heaters, a loading section, a bending and tempering section with cooling devices, an unloading section with driven roller conveyors, characterized in that
    in order to improve the quality of bending by transforming the conveyor and the bend section after loading the sheet from the horizontal to the curved state, each roller of the roller conveyor of the bending and tempering section is connected to the previous and next rollers by supporting parts interconnected by links and levers movable from power cylinders.
     l
    [2]
    2. A device according to claim 1, characterized in that the levers are sharcierly connected by one end with a support part, the other with a power cylinder.
    [3]
    3. The device according to claim 1, characterized in that at least one end of the roller conveyor of the bending and tempering section is made
    with the ability to move in the longitudinal direction,
    [4]
    4. The device according to claim 1, characterized in that the rod of each power cylinder is connected by hinged levers with two adjacent support parts, while the power cylinder itself is fixed on one of the support parts.
    [5]
    5. The device according to claim 1, characterized in that the bending and tempering section is provided with air nozzles located between the support parts.
    [6]
    6. The device according to claim 5, characterized in that the cooling devices of the bending and tempering section
    12
    FIG. 2
    They are made with hot air nozzles, located between the conveyor rollers and cold air nozzles located between the hot air nozzles.
    [7]
    7. An apparatus according to claim 5, characterized in that the air nozzles of the bending and tempering sections are adapted to be moved by the sonor parts of the conveyor.
    / GSGPU #
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    2i 9s (25 19 20 24 25 9b 21
    21 2 22 22 Fig 6
    Compiled by T.Paramonova Editor O.Golovach Tehred M, Khodanych Proofreader S. Cherni
    Order 1856 Circulation 389 Subscription
    VNIIPI of the State Committee for Inventions and Discoveries at the State Committee for Science and Technology (State Committee for Science and Technology) C (SR G3093, Moscow, Zh-35, 4/5 Raushsk Nab.
    Fig 5
    类似技术:
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    SU21960A1|1931-07-31|Machine for plywood drying with the use of heaters moving above the plywood
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    同族专利:
    公开号 | 公开日
    AU592452B2|1990-01-11|
    FI863826A|1988-03-23|
    EP0261611B1|1990-07-18|
    DE3763789D1|1990-08-23|
    JP2533334B2|1996-09-11|
    FI863826A0|1986-09-22|
    ES2016314B3|1990-11-01|
    AU7835687A|1988-03-24|
    CN87106435A|1988-05-11|
    FI76313C|1988-10-10|
    US5057137A|1991-10-15|
    EP0261611A1|1988-03-30|
    US4881962A|1989-11-21|
    CA1308257C|1992-10-06|
    JPS6395134A|1988-04-26|
    FI76313B|1988-06-30|
    CN1013105B|1991-07-10|
    AT54654T|1990-08-15|
    引用文献:
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    US2677918A|1949-04-29|1954-05-11|Saint Gobain|Apparatus for bending and tempering sheets of glass|
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    US3529947A|1968-03-11|1970-09-22|Ppg Industries Inc|Apparatus for and method of bending glass sheets between opposed press shaping molds|
    US4139359A|1977-11-02|1979-02-13|Ppg Industries, Inc.|Method and apparatus for shaping glass sheets by roll forming|
    US4123246A|1978-01-26|1978-10-31|Ppg Industries, Inc.|Shaping and quenching glass sheets by roll forming using transition quench rolls|
    GB2028301B|1978-08-15|1982-12-22|Vidrio Ing Sa|Shaping glass|
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    US4381933A|1982-01-25|1983-05-03|Ppg Industries, Inc.|Method and apparatus for shaping moving glass sheets by sagging followed by roll pressing|
    FR2549464B1|1983-07-20|1985-09-20|Saint Gobain Vitrage|EASILY MODIFIABLE CURVATURE PLANT FOR BENDING AND TEMPERING GLASS SHEETS|
    FR2549465B1|1983-07-20|1985-09-20|Saint Gobain Vitrage|APPARATUS FOR BOMBING AND TEMPERING GLASS SHEETS|
    DE3407173C1|1984-02-28|1985-01-03|Mannesmann AG, 4000 Düsseldorf|Plant for the production of strongly curved glass panes|
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    US4822398A|1987-08-07|1989-04-18|Mcmaster Harold|Glass bending and tempering apparatus|
    US4784681A|1988-02-08|1988-11-15|Glasstech International L.P.|Combined glass sheet bending and quench station|US4822398A|1987-08-07|1989-04-18|Mcmaster Harold|Glass bending and tempering apparatus|
    US4784681A|1988-02-08|1988-11-15|Glasstech International L.P.|Combined glass sheet bending and quench station|
    FI80871C|1988-09-28|1990-08-10|Glamec Oy|Positioner at a glass bending device|
    FI80872C|1988-09-28|1990-08-10|Glamec Oy|Glass heating, bending and cooling systems|
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    FI85134C|1989-08-11|1992-03-10|Tamglass Oy|FOERFARANDE OCH ANORDNING FOER FRAMSTAELLNING AV EN BOEJD GLASSKIVA.|
    FI82921C|1989-09-04|1991-05-10|Tamglass Oy|Method and apparatus for bending and curing glass sheet|
    US5009693A|1989-10-04|1991-04-23|Muirfield Holdings L.P.|Method and apparatus for bending glass|
    FI86167C|1990-09-20|1992-07-27|Tamglass Oy|Refrigeration compartment for glass panels in a curing plant|
    US5498275A|1993-10-18|1996-03-12|Glasstech, Inc.|Glass sheet bending apparatus|
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    US9505654B2|2013-06-06|2016-11-29|Gyrotron Technology, Inc.|Method for the chemical strengthening of glass|
    CN107140814B|2017-05-26|2020-02-14|洛阳北方玻璃技术股份有限公司|Production device and method for single-curved arc surface toughened glass|
    CN108585459B|2018-05-23|2020-03-27|南通市中友钢化玻璃制造有限公司|Tempering furnace special for producing cambered surface glass|
    CN109354395B|2018-08-24|2022-01-28|合肥中科衡金工业自动化有限公司|Production process of small-radius toughened glass|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI863826A|FI76313C|1986-09-22|1986-09-22|Method and apparatus for bending and tempering glass sheets|
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