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Method of spraying stickum onto substrate by utilizing non-contact mode dispenser

A viscous, non-contact technology, applied in the direction of spraying devices, devices for coating liquid on the surface, coatings, etc., can solve the problem of volume change and achieve the effect of fast response time

Inactive Publication Date: 2009-07-29
NORDSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these parameters are constantly changing, and although often only by small amounts over a short period of time, the cumulative effect of such changes can lead to a noticeable change in the volume of fluid dispensed by the dispenser

Method used

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  • Method of spraying stickum onto substrate by utilizing non-contact mode dispenser
  • Method of spraying stickum onto substrate by utilizing non-contact mode dispenser
  • Method of spraying stickum onto substrate by utilizing non-contact mode dispenser

Examples

Experimental program
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Embodiment Construction

[0032] figure 1 is a schematic diagram of a computer controlled non-contact viscous dispensing system 10 available from Asymtek of Carlsbad, CA. The rectangular frame 11 is formed by interconnecting horizontal and vertical steel beams. The viscous substance drip generator 12 is installed on the Z-axis transmission mechanism suspended from the X-Y position controller 14, and the X-Y controller 14 is installed under the top beam of the frame 11. The X-Y controller 14 is driven by a pair of individually controllable motors (not shown) in known manner. The X-Y position controller and the Z-axis transmission mechanism provide three approximately vertical motion axes for the droplet generator 12 . A TV camera and LED aperture assembly 16 is attached to the droplet generator 12 so that it can move along the X, Y, Z axes to inspect the small spots and find the position of the reference points. The television camera and aperture assembly 16 may be of the type described in US Pat. No...

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PUM

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Abstract

A method of spraying a viscous substance onto a substrate using a non-contact dispenser which ejects droplets of viscous substance onto the substrate, the method comprising: providing a total A total volume value of the volume, and a total length value representing the desired delivery length of the total volume value on the substrate; the dispenser is operated to apply a first quantity of viscous droplets to the scale surface; a feedback signal is generated, which represents the weight value of the sticky substance contained in the first number of sticky substance droplets coated on the surface of the scale; determines the velocity value of the relative motion between the dispenser and the substrate, the total volume value of the sticky substance A second quantity of droplets of adhesive is deposited on said substrate to cover said total length value. Through the above method, according to the function of the relative speed between the nozzle and the substrate, the position of each small point to be dropped is optimized, so that the viscous substance sprayed in the air is accurately positioned on the substrate.

Description

[0001] This application is a divisional application of the invention patent application with the application number 200410038372X, the application date being May 24, 2004, and the invention title being "non-contact viscous substance injection system". technical field [0002] This invention relates generally to apparatus for dispensing viscous substances and, more particularly, to computer controlled non-contact spray systems for applying small dots of viscous substances to surfaces. Background technique [0003] During the manufacture of substrates such as printed circuit (PC) boards, it is often necessary to apply small amounts of viscous substances, ie substances with a viscosity greater than 50 centipoise. Examples of such substances include common adhesives, solder pastes, fluxes, solder resists, greases, oils, encapsulants, potting compounds, epoxies, die attach pastes, silicones, RTV, and cyanoacrylics esters, but are not limited to these examples. [0004] In the qu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B12/00B05B13/00B05B13/04B05C9/08B05C11/10H05K3/00
Inventor R·阿伯内西A·J·巴比亚尔兹N·A·巴伦德特R·恰尔代拉J·E·小库珀K·S·埃斯彭西德E·菲斯克C·L·吉鲁茨基P·R·詹金斯A·刘易斯R·A·梅理特N·I·纳加诺H·基尼奥内斯T·拉特利德格J·舍曼F·苏里亚维德加加T·韦斯顿
Owner NORDSON CORP