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Method and device for on-line monitoring of foam quality in foam production process

A production process and foam technology, which is applied to measurement devices, optical devices, optical testing of flaws/defects, etc., can solve the problems of ineffective and efficient online monitoring of foam quality, such as methods and devices, and achieve simple judgment rules, flexible configuration, The effect of reducing complexity

Pending Publication Date: 2022-02-22
COVESTRO DEUTSCHLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still no method and device in the industry that can accurately and efficiently monitor the foam quality on-line.

Method used

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  • Method and device for on-line monitoring of foam quality in foam production process
  • Method and device for on-line monitoring of foam quality in foam production process
  • Method and device for on-line monitoring of foam quality in foam production process

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Embodiment Construction

[0032] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in different forms and should not be construed as limited to only the embodiments set forth herein. The above-mentioned embodiments are given to make the disclosure of this document comprehensive and complete, so as to more fully convey the protection scope of the present invention to those skilled in the art.

[0033] In this specification, terms such as "comprising" and "comprising" mean that in addition to the units and steps that are directly and explicitly stated in the specification and claims, the technical solution of the present invention does not exclude Or the situation of other units and steps clearly stated.

[0034] Words such as "first" and "second" do not denote the order of elements in terms of time, space, size, etc. but are merely used to disting...

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Abstract

The invention relates to a process and a device for producing foam by a continuous foam block foaming method, in particular to a method and a device for on-line monitoring of foam quality in a foam production process. According to the method for on-line monitoring of the foam quality in the foam production process, raw materials for producing the foam are injected onto a conveying bottom plate of a conveyor through a mixing nozzle arranged at one end of the conveyor; the method comprises the following steps that section contour data of foam at a preset position is continuously obtained so as to generate a morphology graph of the foam surface, and the preset position is located on the advancing path of a conveying bottom plate; and defects of the foam are detected based on the topography of the foam surface.

Description

technical field [0001] The invention relates to a process and a device for producing foam by a continuous foam block foaming method, in particular to a method and a device for on-line monitoring of foam quality in the foam production process. Background technique [0002] The continuous foam block foaming method is a common production process of polyurethane foam, which is very suitable for large-scale industrial production. In this process, the raw materials polyol, isocyanate, water and auxiliary blowing agents, catalysts, stabilizers and other additives are pumped into the mixing nozzle in precise metering. figure 1 It is a view of a typical continuous foam slab foam production device. see figure 1 , these raw materials are spread on the bottom plate 110 after being mixed by mechanical stirring or other means, and the bottom plate transports these mixtures in the exhaust channel 120 . During the conveying process, the mixture undergoes a chemical reaction and foams to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/89G01N29/02G01B11/24G01B17/06
CPCG01N21/8914G01N29/02G01B11/24G01B17/06
Inventor 高建伍张俊
Owner COVESTRO DEUTSCHLAND AG