CN108349768B - 具有冷却的输送器辊端部的玻璃片加工系统 - Google Patents

具有冷却的输送器辊端部的玻璃片加工系统 Download PDF

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CN108349768B
CN108349768B CN201680064083.8A CN201680064083A CN108349768B CN 108349768 B CN108349768 B CN 108349768B CN 201680064083 A CN201680064083 A CN 201680064083A CN 108349768 B CN108349768 B CN 108349768B
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cooling
processing system
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詹姆斯·P·小施纳贝尔
尤斯蒂斯·H·芒福德
戴维·B·尼契克
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    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
    • C03B35/18—Construction of the conveyor rollers ; Materials, coatings or coverings thereof
    • C03B35/183—Construction of the conveyor rollers ; Materials, coatings or coverings thereof specially adapted for thermal adjustment of the rollers, e.g. insulating, heating, cooling thereof
    • C03B35/184—Cooling
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    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G13/00—Roller-ways
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    • B65G39/02—Adaptations of individual rollers and supports therefor
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    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/145—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by top-side transfer or supporting devices, e.g. lifting or conveying using suction
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    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
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    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
    • C03B35/162—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors combined with means for thermal adjustment of the rollers, e.g. cooling
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    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
    • C03B35/163—Drive means, clutches, gearing or drive speed control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B65G2201/0214—Articles of special size, shape or weigh
    • B65G2201/022—Flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
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    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/20—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by gripping tongs or supporting frames
    • C03B35/202—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by gripping tongs or supporting frames by supporting frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
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    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
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Abstract

一种热玻璃片加工系统，包括输送器辊支撑结构(34)，其定位于加热位置(32)内，且具有细长状冷却单元(36)，细长状冷却单元具有界定冷却室(40)的壳体(38)，冷却室接收及具有轴承(42)，轴承可旋转支撑经对齐的一组辊端部(30)。冷却单元包括冷却回路，其将冷却流体供应至冷却室(40)，以提供经对齐的一组辊端部(30)及轴承(42)的冷却。

Description

具有冷却的输送器辊端部的玻璃片加工系统
技术领域
本发明涉及一种玻璃片加工系统，其具有输送器，输送器包括辊，辊具有辊端部，辊端部在系统的加热环境内冷却。
背景技术
玻璃片通常在位于炉内的输送器上加热成形，然后在加热室内成形，之后输送用于冷却。此种冷却可以是用来提供退火的缓慢冷却、提供热强化的更快冷却或提供回火的快速冷却。关于玻璃片的加热，请参见以下美国专利：3,806,312，McMaster等人；3,947,242，McMaster等人；3,994,711，McMaster；4,404,011，McMaster；以及4,512,460，McMaster。关于玻璃片的成形，请参见以下美国专利：4,204,854，McMaster等人；4,222,763，McMaster；4,282,026，McMaster等人；4,437,871，McMaster等人；4,575,390，McMaster；4,661,141，Nitschke等人；4,662,925，Thimons等人；5,004,491，McMaster等人；5,330,550，Kuster等人；5,376,158，Shetterly等人；5,472,470，Kormanyos等人；5,900,034，Mumford等人；5,906,668，Mumford等人；5,925,162，Nitschke等人；6,032,491，Nitschke等人；6,173,587，Mumford等人；6,227,008，Shetterly；6,418,754，Nitschke等人；6,543,255，Bennett等人；6,578,383，Bennett等人；6,718,798，Nitschke等人；6,729,160，Nitschke等人。关于冷却，请参见以下美国专利：3,936,291，McMaster；4,470,838，McMaster等人；4,525,193，McMaster等人；4,946,491，Barr；5,385,786，Shetterly等人；5,917,107，Ducat等人；6,079,094，Ducat等人；以及6,513,348，Bennett等人。
用来输送玻璃片的辊可包括烧结结合的熔凝硅石，熔凝硅石能够在加热至可涉及的相对高温时在无热翘曲的情况下操作，相对高温通常超过600℃。然而，此高温会导致轴承的问题，也可引起用来支撑辊以用于旋转的金属端帽的安装问题。
发明内容
本发明的目的是提供一种改良的热玻璃片加工系统。
在实施以上目的时，根据本发明构造的热玻璃片加工系统包括：辊式输送机，其沿加工系统的输送方向延伸，且包括多个辊，所述多个辊具有一组辊端部，该一组辊端部定位于该系统的加热位置内，且沿输送方向彼此对齐。加工系统还包括：辊支撑结构，其定位于该系统的加热位置内，且具有细长冷却单元，所述细长状冷却单元包括界定冷却室的壳体，所述冷却室接收及具有轴承，所述轴承可旋转支撑经对齐的所述一组辊端部。冷却单元包括冷却回路，其将冷却液体供应至冷却室，以提供经对齐的所述一组辊端部的冷却及轴承的冷却，辊支撑结构包括圆罐，所述圆罐突出至冷却室中且具有相应的开口端，其中经对齐的所述一组辊端部经由所述开口端分别突出至冷却室中，所述圆罐支撑轴承，所述轴承可旋转地支撑经对齐的所述一组辊端部，且冷却单元的壳体与具有开口端的圆罐界定冷却回路的流路，冷却回路供应液体以用于冷却经对齐的所述一组辊端部及所述轴承。
根据公开的内容，冷却回路供应水，水提供用于冷却经对齐的所述一组辊端部及轴承的冷却液体，更确切而言，水与抗冻剂的混合物提供经对齐的所述一组辊端部及轴承的冷却。
所公开的辊支撑结构还包括：空气供应装置，其防止加工系统的加热空气流入冷却单元及加热经对齐的辊端部及轴承。
经对齐的所述一组辊端部具有端帽，其分别紧固至经对齐的所述辊端部，所述端帽具有支撑突出部，其分别由轴承可旋转支撑。此外，空气供应装置将空气提供至圆罐中，以防止加工系统的加热空气在圆罐与经对齐的辊端部组之间流入冷却单元中，以防止端帽及轴承的加热。
结合说明书附图，本发明的目的、特征及优点根据优选实施例的以下详细描述而显而易见。
附图说明
图1为实现本发明的玻璃片加工系统的示意性俯视平面图。
图2为加工系统沿图1的线2-2方向所取的示意性侧视图。
图3为加工系统沿图1的线3-3方向所取的示意性端视图，其示出了成形站，成形站具有本发明的辊式输送机冷却单元以及具有第一成形部及第二成形部，第一成形部及第二成形部具有成形模具，成形模具用来提供系统的加热环境内的玻璃片成形。
图3a为示出了图3中在初始成形的玻璃片已移至其处之后的成形站的右侧第二成形部的局部视图，其中初始成形的玻璃片在第一上模具上自左侧第一成形站移至下模具之上及第二上模具之下的位置，其中第二上模具已将来自先前周期的成形玻璃片释放在输送模具上，输送模具随后移出成形站以用于输送。
图3b为图3中成形站右侧第二成形部的另一局部视图，但示出了在下模具与第二上模具之间的压制成形过程中的玻璃片。
图4为示出了系统壳体的透视图，壳体的上部移除以示出冷却单元，冷却单元在系统壳体内的加热位置处提供输送器辊端部的冷却。
图5为沿图4的线5-5方向所取的立视图，以进一步示出冷却单元。
图6为沿图5的线6-6方向所取的截面图，以进一步示出冷却单元的构造。
图7为沿图6的线7-7方向经由冷却单元所取的截面图。
图8为大体沿图7的线8-8方向所取的截面图，但辊端部脱离且轴承移除，以示出支撑轴承的一对轴承支撑件中的每一个的构造，轴承可旋转支撑相关联的辊端部。
具体实施方式
根据需要，本文所公开了本发明的具体实施方式；然而，应理解的是，所公开的实施方式仅仅为本发明的实施例，其可以各种及替代形式实施。各附图不一定按比例绘制；某些特征可能夸大或最小化了以展示特定部件的细节。因此，本文揭示的特定结构及功能细节不应被解释成限制性的，而是仅仅作为用于教导本领域技术人员以不同方式使用本发明的代表性基础。
参考图1-3，大体表示为10的玻璃片加工系统体现了本发明，且包括：加热炉12；成形站14，其包括第一成形位置16及第二成形位置18；以及冷却站20，其通过用于退火的缓慢冷却、用于热强化的更快冷却或用于回火的更快速冷却来冷却成形的玻璃片G。成形站14的炉12及第一成形部16包括辊式输送机22，辊式输送机22具有输送器辊24以用于沿输送方向C输送玻璃片G从而用于加热。辊24由烧结结合的熔凝硅石颗粒制成，以便在加热及冷却过程中具有抵抗热翘曲的性能，且因此在输送过程中提供玻璃片的平面度。加工系统10的部件全部通过线、光纤、管等的控制束25a由控制器25控制，如图2示意性示出的。
如图3所示，每一辊24具有一个端部26，端部26可延伸出炉外以由示意性示出的驱动机构28旋转地驱动，而每一辊的另一端部30位于邻近成形站14的第一分段16与第二分段18之间的接合点32的加热位置处，且由示意性示出于图3中的辊支撑结构34接收。更确切而言，如图4及5所示的支撑结构34沿输送方向C具有细长形状，且包括细长状冷却单元36，细长状冷却单元36如图6所示包括壳体38，壳体38界定冷却室40，冷却室40接收且具有轴承42，轴承42可旋转支撑经对齐的一组辊端部30。如在图5中最佳所示的冷却单元42包括进口44及出口46，其中冷却流体经由进口44及出口46供应至冷却室，以在系统的操作过程中提供对经对齐的一组辊端部30的冷却及轴承42的冷却。
在如图3所示的特定加工系统10中，玻璃片的成形由在支撑结构34内冷却的输送器辊端部30进行，如下文更完整描述的。更确切而言，此系统具有成形站14，其中成形站14的第一成形部16具有第一上模具48，第一上模具48包括向下面向的成形面50，向下面向的成形面50沿输送方向C弯曲但具有横向于输送方向的直线元素，且第二成形部18具有第二上模具52，第二上模具52具有向下面向的成形面54，向下面向的成形面54沿输送方向C以及横向于输送C方向都弯曲。致动器55具有辊55a，辊55a支撑梁56(仅示出一个)，其中第一上模具48支撑在梁56上且在成形操作过程中由致动器55的操作竖直移动轻微程度，且致动器57在成形操作过程中在成形站14的第一成形部16与第二成形部18之间水平地移动梁56及梁上的第一上模具48。横向辊55b还接触梁56，以在第一上模具38在图3中的其拾取位置与图3a中的其输送位置之间的移动过程中提供横向定位。
此外，致动器58在成形站14的成形周期过程中竖直移动第二上模具52，且加压空气源60将加压空气供应至第一气体泵61及第二气体泵62，以经由第一上模具48及第二上模具52的成形面50及54中的孔阵列提供真空且在其他情况下提供加压空气，以初始支撑及随后释放成形的玻璃片G。此外，成形站的第二成形部14中的下模具64在成形过程中由千斤顶66支撑用于竖直移动。此竖直移动可向下以允许第一上模具38在下模具64上方移动且然后向上，因此玻璃片的释放是处于与下模具更接近的间隔关系中以便控制定位。另外，下模具64的竖直移动还可与第二上模具52的竖直移动合作使用以进行压制弯曲。另外，气体喷射泵阵列70提供加热玻璃片G自辊式输送机22至第一上模具48的提升，以开始成形周期，如下所述。
除成形站14之外，如图3所示的系统10包括冷却站20，其中成形的玻璃片G在输送模具74上由致动器76自第二成形部18移至冷却站的下部与上部淬灭头78之间以用于冷却。也如先前所提及的，此冷却可以是用于退火的缓慢冷却、用于热强化的更快速冷却或用于回火的快速冷却。
图3、3a及3b所例示的成形站14具有三阶段的操作，其中玻璃片在第一上模具48成形，第一上模具48在第一方向上具有曲率且在横向于第一方向的第二方向上具有直线元素；玻璃片从位于图3a所示的其输送位置的第一上模具48被接收之后，在具有开放中心环形形状的下模具64上通过重力成形；且最终由图3b所示第二上模具52与下模具64之间的压制成形。
参考图3的成形站14的操作循环由第一上模具48在左侧的第一成形部16内的向下运动开始，以便玻璃片G可由施加于第一上模具48的面50的真空及来自气体喷射泵阵列70的向上气流而提升离开辊式输送机22。更确切而言，第一上模具48可自输送器22由致动器55向下移动约二分之一英寸(12至15mm)，以用于玻璃片的初始拾取，且然后可向上移动，因此第一上模具可移至支撑结构34之上。致动器57然后将梁56及第一上模具48向右移至成形站的第二成形部18中，去往图3a中在下模具64之上及升高的上模具52之下的位置，该升高的上模具52展示于输送模具74上方，输送模具74然后仍在先前周期中操作。将第一上模具48及输送模具74在第二成形部18内同时以不同高度定位提供重叠周期，重叠周期减少系统周期时间，且因此提供更大的输出，从而有利地降低最终成形玻璃片产品的成本。
在下模具64接收玻璃片之后，第一上模具48移动回到第一成形部16，如图3所示，以为下一周期作准备，且玻璃片G在第二上模具52与下模具64之间压制成形，如图3b所示。随后，第二上模具52向上移至图3a中的支撑有压制成形的玻璃片的位置，且输送模具74如所示移至第二成形部14中，以接收压制成形的玻璃片，以用于随后移至图3所示的淬灭处20。
应了解，支撑结构34及其冷却单元36还可用于具有除所公开的成形站之外的加热位置的其他系统，其中支撑结构及冷却单元具有用于其他系统的特定用途。例如，成形站14可替代地具有：第一上模具，其仅竖直地移动；以及下模具，其以输送模具的高度以下的高度自第一上模具之下水平移至第二上模具之下，输送模具在下模具与第二上模具之间的压制成形之后输送成形的玻璃片，如美国专利申请公开号为第U.S.2015/0218029A1所公开的，该申请的公开内容通过引用全部包含于此。
在冷却单元36的优选构造中，冷却回路由图6所示冷却室40以及由图5所示进口44及出口46提供。优选地由流过该回路的液体提供的流体提供输送器辊24的经对齐的一组辊端部30的冷却及相关联的轴承42的冷却，如图6及图7所示。更确切而言，如所公开的，水为所用液体且优选地提供为水与抗冻剂的混合物，以提供经对齐的一组辊端部30及轴承42的冷却。抗冻剂在通过系统之后在冷却器外侧中的冷却中防止冷冻，还由抗冻剂的防沉积添加剂来防止冷却回路中的沉积物堆积。
参考图5及图6，辊支撑结构34包括由80共同表示的空气供应装置，空气供应装置防止加工系统的加热空气流入冷却单元36及加热经对齐的一组辊端部30及轴承42。更确切而言，辊支撑结构34包括圆罐82，圆罐82自壳体38向内突出，且具有相应开口端84，其中对齐的一组辊端部30经由开口端84向内突出至冷却室40中。圆罐82支撑可旋转支撑经对齐的一组辊端部30的轴承42，且冷却单元36的壳体38及具开口端的圆罐界定冷却回路的流路，冷却回路供应水以用于在自进口44流至出口46时冷却经对齐的一组辊端部及轴承，如结合图5在前文所述的。
如图6所示，经对齐的一组辊端部30各具有端盖86，端盖86紧固至相关联的辊的烧结结合的熔凝硅石，每一端盖具有突出部88，突出部88由相关联的抗摩轴承42的内座圈接收，内座圈由保持器90紧固至抗摩轴承42。高温黏接剂将端盖86紧固至辊端部30，且此固定及轴承42两者由经由冷却室40循环水冷却，而来自空气供应装置80的气流防止来自加工系统内部的热空气加热部件。所示的空气供应装置80包括加压空气的源92(图5)，源92供给供应管94，供应管94继而将加压空气供应至连接至配件98的支管96，支管96将加压空气供给至管100中，管100支撑圆罐82且将加压空气供给至圆罐中。
如图7及8所示，每一圆罐82的内部上的轴承座102在抗摩轴承42的外座圈处支撑抗摩轴承42，以提供辊端部30的可旋转支撑，辊端部30在端帽86上的突出部88由轴承的内座圈接收。
对于传送设备69更具体的公开内容而言，参见与此一并提交且具有标题“用于玻璃加工系统的抬升装置“的案卷号为GLT 1993 PUS的美国专利申请，美国专利申请的公开内容通过引用也全部包含于此。
虽然在上文中对示意性实施例进行了描述，但其旨不在于这些实施例描述了本发明所有可能的形式。相反，本说明书中所用的词语为用于描述而非限制性的词语，且应理解，在不脱离本发明的精神及范畴的情况下可作出各种变化。另外，所实施的各种实施例的特征可组合来成形本发明的其他实施例。

Claims (6)

1.一种热玻璃片加工系统，其包括：
辊式输送机，其沿加工系统的输送方向延伸，且包括多个辊，所述多个辊具有一组辊端部，该一组辊端部定位于系统的加热位置内，且沿输送方向彼此对齐；以及
辊支撑结构，其定位于系统的加热位置内，且具有细长状冷却单元，所述细长状冷却单元包括界定冷却室的壳体，所述冷却室接收且具有轴承，所述轴承可旋转地支撑经对齐的所述一组辊端部，并且所述冷却单元包括冷却回路，所述冷却回路将冷却液体供应至冷却室，以提供对经对齐的所述一组辊端部的冷却及所述轴承的冷却，
辊支撑结构包括圆罐，所述圆罐突出至冷却室中且具有相应的开口端，其中经对齐的所述一组辊端部经由所述开口端分别突出至冷却室中，所述圆罐支撑轴承，所述轴承可旋转地支撑经对齐的所述一组辊端部，且冷却单元的壳体与具有开口端的圆罐界定冷却回路的流路，冷却回路供应液体以用于冷却经对齐的所述一组辊端部及所述轴承。
2.根据权利要求1的热玻璃片加工系统，其中冷却回路供应水，所述水提供用于冷却经对齐的所述一组辊端部及所述轴承的冷却液体。
3.根据权利要求2的热玻璃片加工系统，其中冷却回路供应水与抗冻剂的混合物，所述混合物提供对经对齐的所述一组辊端部及所述轴承的冷却。
4.根据权利要求2的热玻璃片加工系统，其中辊支撑结构还包括空气供应装置，所述空气供应装置防止加工系统的被加热的空气流入冷却单元并且加热经对齐的所述一组辊端部及所述轴承。
5.根据权利要求1的热玻璃片加工系统，其中经对齐的所述一组辊端部具有端帽，所述端帽分别紧固至经对齐的所述一组辊端部处，且具有支撑突出部，所述支撑突出部分别由轴承可旋转地支撑。
6.根据权利要求5的热玻璃片加工系统，其中进一步包括空气供应装置，所述空气供应装置将空气提供至圆罐中，以防止加工系统的被加热的空气在圆罐与经对齐的所述一组辊端部之间流入冷却单元中，从而防止端帽及轴承被加热。
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