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Module and nozzle for dispensing controlled patterns of liquid material

A technology of liquid and nozzle, which is applied in the direction of liquid spraying device, device for coating liquid on the surface, spraying device, etc., and can solve the problem of not being able to effectively control the vortex of adhesive filaments

Inactive Publication Date: 2006-02-01
NORDSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, it is impossible to effectively control the vortex of adhesive filaments ejected from this type of injector, so it is desirable to provide a hot melt blown type injector that can produce a controllable liquid filament vortex

Method used

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  • Module and nozzle for dispensing controlled patterns of liquid material
  • Module and nozzle for dispensing controlled patterns of liquid material
  • Module and nozzle for dispensing controlled patterns of liquid material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] see first figure 1 , which shows a jetting module 10 constructed in accordance with the preferred embodiment, which generally includes a module body 12 having a central body portion 14, an upper cap body 16 and a lower body portion 18. Cap body 16 is fixed on the middle body part 14 by fastener 20, and middle body part 14 comprises fastener 22, is used for fastening module 10 on a suitable support body, for example provides liquid such as hot melt to module body 10. Manifold for adhesive (not shown). The lower body portion 18 is secured to the intermediate body portion 14 by respective pairs of fasteners 24 , 26 . A nozzle assembly or die tip assembly 28 receives liquid and compressed gas from supply channels 25, 27, respectively. Nozzle assembly 28 is secured to lower body portion 18 and includes a nozzle or die tip 30, a cover plate 31 for sealing the liquid in the nozzle or die tip and gas ports. Cover plate 31 is secured to nozzle or die tip 30 by fasteners 33 t...

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PUM

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Abstract

The present invention provides a liquid dispensing module and nozzle or die tip for discharging at least one liquid filament. The nozzle includes a wedge-shaped member having a pair of side surfaces converging to an apex. A liquid discharge passage extends along an axis through the wedge-shaped member and through the apex. The wedge-shaped member extends in a radially asymmetrical manner around the liquid discharge passage. Four air discharge passages are positioned at the base of the wedge-shaped member. At least one air discharge passage is positioned adjacent each of said side surfaces and each of the air discharge passages is angled in a compound manner generally toward the liquid discharge passage and offset from the axis of the liquid discharge passage.

Description

[0001] This application is a divisional application of the patent application with the application number 01118038.2 submitted on May 15, 2001. technical field [0002] The present invention relates generally to a liquid material dispensing device and nozzle, and more particularly to an apparatus and nozzle for dispensing a controllable pattern of liquid adhesive filaments. Background technique [0003] There are many reasons for jetting liquids in the form of filaments with controllable patterns, such as hot melt adhesives. Patterns commonly used in the past include swirling patterns of filaments formed by impinging the filaments with multiple jets of gas, which is commonly referred to in the hot melt adhesive jetting industry as controlled fiberization or CF TM . Controlled fibrillation technology is used to precisely cover a wide range of substrates with one or more side-by-side fibers sprayed from small diameter nozzle holes, such as about 0.0254 cm (0.01 in) to 0.1524 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B1/02B05C5/02B05B1/34B05B7/08B05B7/10B05B15/06
CPCB05B15/065B05C5/02B05B7/0861B05B7/10B05B15/65
Inventor 劳伦斯·B·塞德曼
Owner NORDSON CORP