Application device for preferably partially enhancing the application

By introducing a second pipe section as a bypass into the application device, the time delay and transition zone problems of material alternation in the prior art are solved, realizing rapid and seamless material alternation and ensuring the stability and continuity of the mixing ratio.

CN116507426BActive Publication Date: 2026-05-26DUERR SYSTEMS GMBH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DUERR SYSTEMS GMBH
Filing Date
2021-10-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing application devices have time delays and undefined transition zones during the transition process, resulting in uneven mixing ratios and making it difficult to achieve rapid and seamless material alternation.

Method used

An application device is designed, including a first pipe section and a second pipe section. The first pipe section is used to mix 2C material, and the second pipe section is connected directly or indirectly to the application nozzle as a bypass, allowing the first component material to bypass the mixer, realizing the alternating application of materials, and reducing or eliminating the transition area.

Benefits of technology

It enables rapid and seamless alternating application of materials, ensuring the stability and continuity of the mixing ratio, reducing transition time, and improving application efficiency.

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  • Figure CN116507426B_ABST
    Figure CN116507426B_ABST
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Abstract

The present invention relates to an application device (100), preferably for alternately applying, particularly to, motor vehicle components, a two-component material (AB) comprising a first component material and a second component material, and a first component material (A). The application device preferably comprises an application head (H) and a first pipe section (10) leading to an application nozzle (30). The first pipe section (10) has a mixer (3), a first conduit (1) for the first component material (a), and a second conduit (2) for the second component material. The first conduit (1) and the second conduit (2) are connected to the mixer (3), which mixes the first component material (A) and the second component material (B) to form the two-component material (AB). The application device (100) is particularly characterized by having a second pipe section (20) for the first component material (a) to form an application string (200) consisting of alternating AB material from the first pipe section (10) and the first component material (A) from the second pipe section (20). The invention also relates to an associated method of operation.
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