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公开(公告)号：US4122768A
公开(公告)日：1978-10-31
申请号：US788911
申请日：1977-04-19
CPC分类号： B41F15/0872
摘要： An improved apparatus for automatically printing two faces of an object. The present invention is an attachment for use with a screen printing press of the type shown in U.S. Pat. No. 3,090,300, issued to Louis Gilbert Dubuit on May 21, 1963. The attachment permits the utilization of two separate sections of the same screen to print the face and reverse side of an object of revolution, such as a bottle, and particularly bottles of oval or irregular shape. The attachment consists of a main drive train which rotates the bottle at the same surface speed as the movement of the screen. Means are provided to flip or invert the bottle 180.degree. during the return stroke with a separate means provided to shift the screen relative to the drive, presenting a different section of the screen to the reverse side of the bottle for printing when the machine cycles through its normal print stroke. As is customary in printing irregular objects, the squeegee is held stationary and the screen and object move at the same speed beneath the squeegee to print the impression in the screen on the work.
摘要翻译： 一种用于自动打印物体两面的改进装置。 本发明是一种用于美国专利所示类型的丝网印刷机的附件。 第3,090,300号，于1963年5月21日发给路易斯·吉尔伯特·杜比（Louis Gilbert Dubuit）。该附件允许利用同一屏幕的两个独立部分来打印革命对象的面部和背面，例如瓶子，特别是瓶子 椭圆形或不规则形状。 附件包括一个以与屏幕移动相同的表面速度旋转瓶子的主传动系。 提供了用于在返回行程期间翻转或翻转瓶子180度的装置，其具有提供用于相对于驱动器移动屏幕的单独装置，当机器循环时，将屏幕的不同部分呈现在瓶的反面，用于打印 其打印行程正常。 像打印不规则物体一样，刮刀被固定，屏幕和物体以相同的速度移动到刮板下面，以在工作屏幕上印出印象。
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公开(公告)号：US5857409A
公开(公告)日：1999-01-12
申请号：US8920
申请日：1998-01-20
CPC分类号： B41F15/10 , B41F15/0872 , B41P2215/114 , B41P2233/52
摘要： Semi-automatic screen printing equipment for multi-color printing of cylindrical objects wherein precise color-to-color registration may be achieved. A programmable color sensor, photoelectric system using fiber optics is preferably employed for reading a color image reflection from a rotating object and feeding a resulting signal into a pre-programmed color selector for providing an electrical signal to an electric clutch. The electric clutch engages a mechanical interlock drive between the screen printing plate and the object for precise color to color registered printing. A fixture is used for rotatably supporting an object to be printed. A screen and a squeegee for contacting the screen are used to force printing material through openings in the screen for application to the object surface. A first rotatable shaft is connected to the fixture, and a second rotatable shaft is provided. Clutch means connect these shafts for engaging and disengaging driving action therebetween. A first ratchet is mounted on the second shaft for rotation therewith, and a first pawl is located in a fixed position adjacent this shaft and is engageable with the first ratchet to restrict rotation of the second shaft in one direction while permitting rotation of the second shaft in the opposite direction. A second ratchet is mounted adjacent the second shaft, and a second pawl is mounted on the second shaft and is engageable with the second ratchet whereby rotation of this ratchet in the opposite direction operates to rotate the second shaft.
摘要翻译： 用于圆柱形物体的多色印刷的半自动丝网印刷设备，其中可以实现精确的颜色到颜色的配准。 优选地使用可编程颜色传感器，使用光纤的光电系统来从旋转物体读取彩色图像反射，并将得到的信号馈送到预编程的颜色选择器中，以向电动离合器提供电信号。 电动离合器接合丝网印刷板和物体之间的机械联锁驱动器，用于精确的彩色到彩色登记印刷。 夹具用于可旋转地支撑待印刷的物体。 用于接触屏幕的屏幕和刮板用于迫使印刷材料通过屏幕中的开口以施加到物体表面。 第一可旋转轴连接到固定装置，并且设置有第二可旋转轴。 离合器装置连接这些轴用于接合和分离它们之间的驱动动作。 第一棘轮安装在第二轴上以与其一起旋转，并且第一棘爪位于邻近该轴的固定位置，并且可与第一棘轮接合，以限制第二轴在一个方向上的旋转，同时允许第二棘轮 在相反的方向。 第二棘轮安装在第二轴附近，并且第二棘爪安装在第二轴上并可与第二棘轮接合，由此该棘轮沿相反方向的旋转操作以旋转第二轴。
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公开(公告)号：US4111118A
公开(公告)日：1978-09-05
申请号：US720763
申请日：1976-09-07
CPC分类号： B41F15/08 , B41F15/0872
摘要： An improved low cost screen printing apparatus for printing on both flat and curvilinear objects. Two vertically aligned shafts support the printing head and, by following the pivotal motion of an arm, raise and lower the printing head relative to the object being printed with a straight vertical displacement, resulting from the controlled movement of the upper shaft cooperating with arcuate channels formed in the end supports. The squeegee assembly operates in a timed relationship with the raising and lowering of the screen head to alternately lower the squeegee and raise the flood bar for forcing ink through the screen in the print cycle and raise the squeegee and lower the flood bar to flood the screen on the return cycle. When the screen is in the raised position, the squeegee assembly and screen frame are selectively connectable to a reciprocating carriage, for printing either curvilinear or flat objects.
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