发明名称 |
Method for dispensing a viscous material |
摘要 |
A method is provided for dispensing materials (20) with fluctuating viscosity over time, such as liquid adhesives. Using a control algorithm derived from viscosity data or lab testing results, a first pressure or mechanical drive speed is used to force viscous material (20) from a supply syringe (14) during a first dispensing cycle. After a certain amount of time, a correction model is applied to the control algorithm to increase the pressure or drive speed as viscosity of the material (20) increases. A second higher pressure or drive speed is then used to force viscous material (20) from the supply syringe (14) during a second dispensing cycle. The correction model can be based on empirical data about the viscous material (20), or a camera system (30) can be used to periodically adjust the pressure or drive speed as required to maintain a substantially uniform dispensing rate. |
申请公布号 |
US8255088(B2) |
申请公布日期 |
2012.08.28 |
申请号 |
US20080741732 |
申请日期 |
2008.11.25 |
申请人 |
BURKUS, II FRANK S.;SAIDMAN LAURENCE B.;VARGA LESLIE J.;NORDSON CORPORATION |
发明人 |
BURKUS, II FRANK S.;SAIDMAN LAURENCE B.;VARGA LESLIE J. |
分类号 |
B67D7/08;G05D7/06 |
主分类号 |
B67D7/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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