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Automatic printing method of three-dimensional pattern on vehicle body surface

A three-dimensional pattern and inkjet technology, which is applied in the field of personalized body decoration and special vehicle camouflage inkjet printing, to achieve the effect of realistic pattern, uniform printing and simple principle.

Active Publication Date: 2014-10-22
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no automatic inkjet method for the three-dimensional pattern on the surface of the car body directly driven by the design pattern.

Method used

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  • Automatic printing method of three-dimensional pattern on vehicle body surface
  • Automatic printing method of three-dimensional pattern on vehicle body surface
  • Automatic printing method of three-dimensional pattern on vehicle body surface

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Embodiment Construction

[0024] The specific implementation of the present invention is described in detail with reference to the accompanying drawings and implementation steps. The schematic diagram of the inkjet system is shown in figure 1 shown. The present invention is to generate a motion trajectory capable of driving an inkjet robot for inkjet painting. The flow process of the whole method is as follows: figure 2 shown. The specific implementation process is as follows:

[0025] 1. First, establish the 3D CAD model of the body parts in CAD design software such as UG, CATIA, etc. as the driving model of the entire inkjet system; use the data output function of the CAD design software to output the parametric CAD model as a triangular mesh model, And save it in STL format, such as image 3 shown.

[0026] 2. By simulating the inverse process of the stamping forming of the body panel, the three-dimensional body surface is flattened onto a two-dimensional plane; the basic idea of ​​the method ...

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Abstract

An automatic inkjet printing method for three-dimensional patterns on the surface of a vehicle body, belonging to the field of vehicle digital design and manufacturing. This automatic inkjet printing method uses three-dimensional design software to construct a car exterior cover model and discretizes it into a triangular grid model, and then establishes a mapping relationship between the triangular grid model and the plane parameter domain; based on this, the pattern pixels are The corresponding points in the plane domain are inversely mapped to the three-dimensional model of the car body, establishing the corresponding relationship between the pattern pixel points and the three-dimensional car body points, and saving the color information of the pixels; generating an inkjet path on the three-dimensional car body model, and based on the path points The corresponding pixel color information adjusts the inkjet color of the pattern, thereby driving the inkjet printing robot to complete automatic inkjet printing of the three-dimensional pattern on the car body surface. The inkjet trajectories generated by this automatic inkjet printing method automatically complete the automatic inkjet printing of various personalized patterns on the vehicle body surface under computer control. The principle is simple, the inkjet printing is uniform, and the patterns are realistic, which effectively improves the efficiency of pattern inkjet printing.

Description

technical field [0001] The invention relates to an automatic printing method for three-dimensional patterns on the surface of a vehicle body, which belongs to the field of vehicle digital design and manufacture, and is especially suitable for special vehicle camouflage printing, vehicle body advertisement production, personalized vehicle body decoration and the like. technical background [0002] With the rapid development of production, the automobile industry has become an important pillar industry of my country's national economy. Various forms of spray-painted patterns on the surface of the body have a wide range of potential applications in special vehicle camouflage painting, body advertising production, and personalized body decoration. There are two common ways to generate car body patterns. One is to paste plastic or paper patterns directly on the body surface. However, affected by the curvature of the body surface, the pattern stickers are easy to wrinkle during the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D5/06G06F17/50
CPCB41J3/4073
Inventor 徐金亭侯文彬汪顺可
Owner DALIAN UNIV OF TECH
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