Adjustable Scraper Mounting for Stencil Printing Consistency
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Solution Overview
Problem
Existing stencil printers lack the ability to adjust the inclination angle of the scraper relative to the stencil, leading to inconsistent material dispensing speeds due to fixed pressure application, which affects the filling of holes in the stencil.
Innovation Solution
A scraper assembly with a mounting assembly that allows adjustable inclination angles of the scraper relative to the stencil, maintained by a support column and connecting blocks, and an angle indicating device for precise adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the scraper is fixed at a fixed inclination angle, then the structure is simple and stable, but the material dispensing speed cannot be adjusted for different viscosities and hole sizes
Solution Approach 1:
The mounting assembly enables the scraper to transition from a fixed angular position to an adjustable one, allowing dynamic adaptation to different material viscosities and hole sizes while maintaining structural stability through the support column and connecting blocks mechanism
Solution Approach 2:
The invention changes the parameter of scraper inclination angle from fixed to variable, enabling adjustment of the angle to optimize material dispensing speed for different applications while maintaining the basic structural framework
2Productivity
If the scraper applies fixed pressure to the stencil, then the structure is simple, but the material dispensing speed is inconsistent for different viscosities
Solution Approach 1:
The mounting assembly allows the scraper angle to be dynamically adjusted based on material viscosity and hole size requirements, enabling consistent material dispensing speed across different applications while maintaining a relatively simple mechanical structure
Solution Approach 2:
The invention adjusts the scraper inclination angle parameter to optimize material dispensing performance for different viscosities, achieving consistent productivity without requiring complex pressure control mechanisms
3Manufacturing precision
If the scraper angle is not adjustable, then the device is easy to operate, but the filling of holes in the stencil is affected by inconsistent material deposition
Solution Approach 1:
The mounting assembly provides a simple mechanical adjustment mechanism that allows operators to easily modify the scraper angle for different material viscosities and hole sizes while achieving consistent material deposition, balancing ease of operation with manufacturing precision
Solution Approach 2:
The invention enables adjustment of the scraper inclination angle parameter to optimize material deposition consistency for different applications, improving manufacturing precision while maintaining operational simplicity through a straightforward adjustment mechanism
Data Source
AI summary
The present disclosure provides a scraping device (700) for a stencil printer comprising: a scraper holder (710), a scraper (720) having a travel path for squeegeeing a material to be dispensed on a stencil (130), the scraper (720) being arranged oblique to the stencil (130) and to the rear of the travel path; a mounting assembly (730) configured to mount the scraper (720) to the scraper holder (710). The mounting assembly (730) is further configured to be able to adjust the inclination angle of the scraper (720) relative to the stencil (130) and to maintain the scraper (720) at an adjusted angular position.