Integrated Spindle Transfer for Paint and Graphic Surface Treatment
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Solution Overview
Problem
Current methods for applying surface treatments and graphic patterns on articles, such as caps and containers, require separate processing cycles and multiple handling steps, leading to logistical complications, increased production costs, and potential damage to the aesthetic features due to mechanical friction and environmental exposure, with adhesion issues between paint and graphic patterns.
Innovation Solution
An integrated apparatus and method that uses workpiece-holding spindles and a feeding line to transfer articles between a decoration module for graphic treatment and a painting module, allowing for simultaneous or sequential application of decorative and painting treatments without direct contact to prevent surface alterations, featuring a transfer assembly that adjusts interaxle spacing and includes a laser engraving unit for detailed graphics and a painting module for protective coating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If articles are transferred between separate painting and decoration production sites, then graphic patterns can be applied, but logistical complications increase and production costs rise
Solution Approach 1:
The patent combines the painting module and decoration module into a single integrated apparatus. The painting module applies a protective coating to articles, and the decoration module subsequently applies graphic patterns to the painted surface. Both modules share common infrastructure including spindles for article holding, a feeding line for article transport, and a control system, eliminating the need for separate production sites and reducing logistical complexity.
2Ease of manufacture
If articles undergo multiple handling steps for separate painting and decoration, then both treatments can be applied, but the possibility of damage and processing defects increases
Solution Approach 1:
The apparatus enables continuous processing where articles are painted by the painting module, then immediately transferred to the decoration module without interruption or removal from the apparatus. The spindles continuously rotate articles through both treatment zones, eliminating repeated loading and unloading operations that could cause damage or defects.
3Productivity
If graphic patterns are applied before painting, then production sequence is established, but adhesion between paint and graphic patterns is compromised
Solution Approach 1:
The painting module applies a protective coating to the article surface first, creating a prepared substrate. Only after this coating is applied does the decoration module apply graphic patterns to the painted surface. This sequence ensures optimal adhesion between the graphic patterns and the painted surface, while the control system coordinates the timing and positioning of both modules.
4Productivity
If articles are exposed to mechanical friction and environmental agents during transfer, then processing can be completed, but aesthetic features deteriorate
Solution Approach 1:
The painting module applies a protective coating (lacquer or paint layer) to the article surface. This coating acts as a protective film that shields the underlying aesthetic features from mechanical friction during handling and from environmental agents such as humidity and UV radiation during the decoration process, while still allowing the decoration module to apply graphic patterns effectively.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach simplifies production by integrating graphic and painting processes, enhancing adhesion and durability of graphic patterns, reducing production costs and waste, while maintaining the aesthetic integrity of the articles through efficient handling and protective coating.
Implementation Method 1
laser engraving unit for detailed graphics
Data Source
AI summary
A plurality of workpiece-holding spindles is arranged, each engaging an article being processed, and a plurality of trays, each removably engaging a plurality of said spindles. The trays are moved along a feeding line extending along a feeding path passing near a decoration module. By a transfer assembly, the spindles carrying the articles are transferred from the trays on the feeding path, to the decoration module. A decorative treatment is applied to the articles carried by the spindles, in correspondence with at least one treatment unit (40, 41, 42) operating along the decoration module. In correspondence with a painting module operatively connected with the feeding line, the articles carried by the spindles are painted.