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公开(公告)号：US4121519A
公开(公告)日：1978-10-24
申请号：US778882
申请日：1977-03-18
申请人： Frank L. Porth
发明人： Frank L. Porth
摘要： Stencilling apparatus having a trough type fluid scoop positioned behind, parallel to, and spaced from the stencilling squeegee, the scoop being pivotally shiftable through a scooping motion to scoop up excess fluid after the squeegee is elevated. The pivotal shifting is from a first scoop position wherein an edge of the scoop serves as a flow coater to a second position wherein the scoop retains the fluid scooped.
摘要翻译： 具有槽形流体勺的搅拌装置，其位于平行于并且与间歇刮板的后方并且与间歇的刮板之间，勺子可旋转地移动通过舀取运动，以在刮板升高之后铲起多余的流体。 枢转换档是从第一勺位置，其中勺子的边缘用作流涂机到第二位置，其中铲斗保持舀取的流体。
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公开(公告)号：US4102266A
公开(公告)日：1978-07-25
申请号：US778867
申请日：1977-03-18
申请人： Frank L. Porth
发明人： Frank L. Porth
CPC分类号： B41F15/42
摘要： Stencilling apparatus having a trough-type fluid scoop ahead of the squeegee and pivotally shiftable in a rearward direction from a fluid dumping position, through a sweeping fluid scooping action adjacent the screen, to a fluid retention position in engagement with the squeegee.
摘要翻译： 搅拌装置具有在刮板前方的槽型流体勺，并且可以沿着向后方向从流体倾倒位置通过与筛子相邻的清扫流体舀取动作枢转地移动到与刮板接合的流体保持位置。
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公开(公告)号：US4080893A
公开(公告)日：1978-03-28
申请号：US730307
申请日：1976-10-07
申请人： David A. Wedell
发明人： David A. Wedell
CPC分类号： B41F15/46
摘要： A squeegee assembly for stencilling apparatus employing cooperative front and rear panels astraddle the squeegee, the panels being shiftable between (1) an extended condition away from the squeezee and in which such cooperatively form an open bottom chamber for the stencilling fluid about the squeegee, and also the rear panel serves as a flow coater and the front panel serves as a fluid barrier, and (2) a retracted position at the squeegee to close the fluid chamber about the squeegee. BACKGROUND OF THE INVENTIONThis invention relates to stencilling apparatus, and more particularly to a stencilling assembly with control of the stencil fluid.In recent years, several developments have been made in squeegee assemblies of stencilling apparatus to obtain better control of the stencil fluid characteristics during continued stencilling. Many of such developments have been directed to features for controlling the viscosity of the fluid by limiting exposure of the fluid to minimize solvent evaporation, by controllably adding solvent to the fluid for viscosity stabilization, by operating the squeegee while submerged under a pool of fluid, by flow coating directly behind the squeegee during the stencilling stroke, and others. Typical ones of these developments are set forth in U.S. Pat. No. 3,252,411, application Ser. No. 519,539, filed 10/31/74, now U.S. Pat. No. 3,980,017 issued Sept. 14, 1976, application Ser. No. 518,768, filed 10/29/74, now U.S. Pat. No. 3,973,491 issued Aug. 10, 1976, and application Ser. No. 688,610, filed 5/21/76.However, even with some of these improved devices, during the stencilling operation the relative movement occurring between the squeegee and the stencil screen (usually by moving the stencil screen past the squeegee), causes the stencil fluid to steadily accumulate on one end of the stencil where the squeegee stops at the end of the stencilling stroke. The accumulated fluid, usually ink, becomes viscous, thereby becoming not only useless but also presenting a cleaning problem. And, at high printing speeds, the ink is sometimes actually pushed or splashed against the end of the stencil frame to create further difficulties.SUMMARY OF THE INVENTIONThis invention was conceived and developed to achieve control of the stencilling fluid and its stencilling characteristics during repeat stencil strokes, even of the fluid pushed ahead of the squeegee. The fluid is retained within a confined chamber formed by cooperative front and rear panels straddling the squeegee and shiftable between extended and retracted conditions. The special front panel, in addition to its cooperative action with the rear panel in forming the chamber, forms a barrier to the excess fluid ahead of the squeegee when extended. It also retrieves this fluid when shifting to its retracted condition at the end of the stencilling stroke. The rear panel, in addition to its cooperative action with the front panel, spreads fluid during stencilling for the succeding stencilling stroke. The two panels, retracted to the squeegee, cooperate with the squeegee to form a closed bottom fluid chamber about the squeegee, enabling the squeegee to be of suspended submerged type with flow passage means thereabove in the squeegee support.The front and rear panels advance with the squeegee, that is, relative to the stencil, but spaced from the squeegee, during the stencilling stroke, and return with the squeegee in a fluid retaining relationship therewith on the return stroke. This relative movement may be and usually is achieved by shifting the stencil while retaining the squeegee and panels generally stationary.These and other special advantages, features, and objects of the invention will be apparent from the following detailed description.
摘要翻译： 一种用于压缩装置的刮板组件，其采用协同操作的前面板和后面板，位于刮板上，所述面板可在（1）远离挤压机的延伸状态之间移动，并且其中协同地形成用于围绕刮板的旋转流体的开放底部室，以及 后面板也用作流动涂布机，前面板用作流体屏障，和（2）在刮板上的缩回位置，以围绕刮板关闭流体室。
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公开(公告)号：US4051777A
公开(公告)日：1977-10-04
申请号：US688610
申请日：1976-05-21
IPC分类号： B41F15/42
CPC分类号： B41F15/42
摘要： Stencilling apparatus having a print and flow action relative to a combination squeegee and flow coater assembly, wherein excess stencilling fluid ahead of the squeegee can flow through the assembly, by flow over the squeegee into a control reservoir behind the squeegee and ahead of the trailing flow coater, and a controlled layer of the fluid flows from the reservoir beneath the lower edge of the flow coater onto the underlying stencil screen.
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公开(公告)号：US3973492A
公开(公告)日：1976-08-10
申请号：US519591
申请日：1974-10-31
CPC分类号： B41F15/24 , B41F15/0854 , B41F15/10 , Y10T83/4635
摘要： Slit registry apparatus and method for registry of flexible, generally planar stock as for stencilling thereon, involving formation of periodic transverse slits and adjacent edges in the stock, at least one of the edges and the adjacent stock zone or area being offset from the plane of the stock for engagement of this offset edge by a registration surface.
摘要翻译： 狭缝登记装置和方法，用于登记柔性的，大致平面的坯料，用于在其上振动，包括在坯料中形成周期性横向狭缝和相邻边缘，至少一个边缘和相邻的坯料区域或区域从 用于通过配准表面将该偏移边缘接合的坯料。
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公开(公告)号：US3973493A
公开(公告)日：1976-08-10
申请号：US519822
申请日：1974-11-01
IPC分类号： B41F15/08 , B41F15/12 , B41L25/00 , B65H20/24 , B65H20/32 , B65H23/188 , B65H23/24 , F26B13/12 , B41F15/24 , B65H23/00 , F26B13/10
CPC分类号： B65H20/24 , B41F15/12 , B65H23/24 , B65H2408/215
摘要： Web stencilling and drying apparatus for web stock with at least one intermittent feed stencilling station and slit registry means for stock therefor, a continuous feed ultraviolet drying station, and first and second dynamic flow pressure differential web controllers upstream and downstream of the ultraviolet drying station, the first one including sensors responsive to the length of the web loop therein to control web intermittently fed thereto and continuously fed therefrom.
摘要翻译： 用于具有至少一个间歇进料加压站和用于储存的狭缝注册装置的网状物料的网式加压和干燥装置，连续进料紫外线干燥站以及紫外线干燥站上游和下游的第一和第二动态流量压差控制器控制器， 第一个包括响应于其中的卷筒纸环的长度的传感器，以控制间歇地供给到其中并连续地从其馈送的纸幅。
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公开(公告)号：US3973491A
公开(公告)日：1976-08-10
申请号：US518768
申请日：1974-10-29
CPC分类号： B41F15/42 , Y10T137/2506
摘要： A stencilling printer with a flow coater specially mounted to sense viscosity of stencil fluid flowing from a reservoir between the flow coater and the squeegee, the flow coater being shiftable and operably associated with a supply of viscosity-altering liquid for controllably altering the viscosity of stencil fluid in the reservoir.
摘要翻译： 具有特别安装用于感测从流动涂布机和刮板之间的储存器流动的模板流体的粘度的流动涂布机的压烫打印机，流动涂布机是可移动的并且可操作地与供应粘度改变的液体相关联，用于可控地改变模板的粘度 储存器中的液体
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公开(公告)号：US3941053A
公开(公告)日：1976-03-02
申请号：US401383
申请日：1973-09-27
申请人： James A. Black , James O. Rop
发明人： James A. Black , James O. Rop
CPC分类号： B41F15/0827
摘要： A screen printing press employs a screen carriage securing a printing screen frame and screen therein and which reciprocates through print and return strokes over a reciprocally rotating print cylinder. Printing stock is advanced between the print cylinder and the screen during printing strokes. The screen carriage includes a disengageable drive which permits feeding print stock through the machine without effecting printing thereon. The screen carriage further includes adjustable screen frame holding means to which the screen frame is slidably mounted permitting partial or total removal of the screen frame from the screen carriage. A fully adjustable squeegee means and flow coater assembly is positioned above the screen and is provided for elevating and longitudinally shifting the flow coater and squeegee assembly away from the printing area for inspection and maintenance of the press. The screen carriage includes cam means for positively engaging squeegee support means for controllably lowering the squeegee to the screen during each printing stroke. Externally adjustable side registration means are provided to permit adjustment of the print stock registration during operation of the press.
摘要翻译： 丝网印刷机采用将印刷筛网框架和筛网固定在其中并通过往复旋转印刷滚筒上的打印和返回冲程往复运动的筛架。 打印笔画期间，打印墨盒和打印墨盒之间的打印纸张先进。 屏幕托架包括可脱开的驱动器，其允许通过机器馈送印刷原料而不在其上进行印刷。 屏幕托架还包括可调整的屏幕框架保持装置，屏幕框架可滑动地安装到屏幕框架，允许屏幕框架从屏幕托架部分或全部移除。 完全可调的刮板装置和流动涂布机组件位于筛网上方，并且设置用于将流动涂布机和刮板组件远离打印区域升高并纵向移动，以便对印刷机进行检查和维护。 屏幕托架包括用于正向接合的刮板支撑装置的凸轮装置，用于在每次打印行程期间可控地将刮板降低到屏幕。 提供外部可调侧配准装置以允许在印刷机操作期间对印刷品登记进行调整。
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公开(公告)号：US4095760A
公开(公告)日：1978-06-20
申请号：US784075
申请日：1977-04-04
申请人： John H. Sommer , Sidney Axelrod
发明人： John H. Sommer , Sidney Axelrod
IPC分类号： B64C3/26
CPC分类号： B64C3/26 , Y10S264/71 , Y10S428/913 , Y10T428/315
摘要： A structural cover skin for components of a fluid-medium craft, especially the foil components of the craft, wherein a layer of heat shrinkable, polymeric film, preferably of polyvinyl fluoride is bonded to a layer of heat-shrinkable polymeric film and/or fabric, preferably of polyester, to form a special laminated heat shrink covering material particularly useful for man-flown airplanes. A method for covering the frame portions includes an encapsulating envelope of the noted material or an overlapped wrapping which is heat shrunk tautly to the contours of the frame.
摘要翻译： 用于流体介质工艺的部件的结构覆盖皮肤，特别是工艺的箔部件，其中一层热收缩聚合物薄膜，优选聚氟乙烯层结合到热收缩聚合物膜和/或织物层 ，优选为聚酯，以形成特别适用于人飞飞机的特殊层压热收缩覆盖材料。 用于覆盖框架部分的方法包括所述材料的封装外壳或与框架的轮廓紧密地收缩的重叠的包裹物。
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公开(公告)号：US3970040A
公开(公告)日：1976-07-20
申请号：US570735
申请日：1975-04-23
申请人： Frank L. Porth
发明人： Frank L. Porth
摘要： A tray suitable for providing a uniform coating of predetermined thickness on sheet material includes a generally V-shaped trough for dispensing a fluid contained therein through a plurality of apertures formed through the bottom of the trough and spaced along its length. Along the outer surface of the apex of the V-shaped trough, there is formed a channel communicating with the apertures and defining a pair of spaced continuous blades extending along the length of the trough and spanning the apertures. The lands of material between the apertures of the trough are tapered to a point on the side of the trough adjacent the channel to provide a uniform supply of coating material within the channel. As the trough is moved across the surface of a sheet to be coated, the trailing blade which is spaced at a desired height from the sheet material, provides a uniform coating of fluid to the sheet.
摘要翻译： 适于在片材上提供预定厚度的均匀涂层的托盘包括大致V形的槽，用于通过穿过槽的底部形成并沿其长度间隔开的多个孔分配包含在其中的流体。 沿着V形槽的顶点的外表面，形成有与孔连通的通道，并且限定了沿着槽的长度延伸并跨越孔的一对隔开的连续叶片。 在槽的孔之间的材料的焊盘的边缘逐渐变细到靠近通道的槽的侧面上的点，以在通道内提供均匀的涂层材料供应。 当槽移动穿过待涂覆的片材的表面时，与片材材料间隔开所需高度的后叶片为片材提供均匀的流体涂层。
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