Invention Grant
US07806048B2 Method and apparatus for calibrating print head pressure and applying an accurate print pressure during production
有权
用于校准打印头压力并在生产过程中应用精确打印压力的方法和装置
- Patent Title: Method and apparatus for calibrating print head pressure and applying an accurate print pressure during production
- Patent Title (中): 用于校准打印头压力并在生产过程中应用精确打印压力的方法和装置
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Application No.: US11786971Application Date: 2007-04-13
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Publication No.: US07806048B2Publication Date: 2010-10-05
- Inventor: Dennis G. Doyle
- Applicant: Dennis G. Doyle
- Applicant Address: US IL Glenview
- Assignee: Illinois Tool Works, Inc.
- Current Assignee: Illinois Tool Works, Inc.
- Current Assignee Address: US IL Glenview
- Agency: Lando & Anastasi, LLP
- Main IPC: B05C17/04
- IPC: B05C17/04
Abstract:
A stencil printer includes a frame, a stencil coupled to the frame, a substrate support coupled to the frame to support a substrate in a print position, and a print head, coupled to the frame, to deposit and print viscous material over the stencil. The print head includes a squeegee assembly having at least one squeegee blade and a squeegee blade movement mechanism configured to move the squeegee blade from a raised position in which the squeegee blade is spaced from stencil and a lowered position in which the squeegee blade engages and applies a force on the stencil. The print head further has a device to detect a first reference point associated with a first force of the squeegee blade against the stencil and a second reference point associated with a second force of the squeegee blade against the stencil when moving the squeegee blade to the lowered position in which the squeegee blade engages and applies a force on the stencil.
Public/Granted literature
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