Laser PVC Film Coating Tension and Curing Mechanism
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Solution Overview
Problem
Existing methods for preparing PVC substrates with a laser layer often result in uneven coatings due to incomplete immediate curing of the coating layer during delivery and the presence of impurities on the substrate surface.
Innovation Solution
A device comprising an upper and lower transmission roller, a support mechanism, a spraying mechanism, an impurity removal mechanism, and a curing mechanism, which implements horizontal spraying, tensioning the PVC film for even coating, removes impurities, and ensures rapid curing to prevent fluidity issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the coating layer is sprayed on the PVC substrate and then delivered without immediate curing, then the coating has time to be applied, but the coating moves on the PVC substrate during delivery causing uneven distribution
Solution Approach 1:
The patent applies preliminary curing action by placing a UV curing machine immediately after the spraying head. The coating is cured in real-time as it is being applied to the PVC substrate, preventing the coating from moving during delivery. This resolves the contradiction by performing the curing action preliminarily and continuously, ensuring even distribution while maintaining efficient production timing.
2Manufacturing precision
If impurities are present on the PVC substrate surface, then the substrate can be processed, but the impurities affect the even distribution of the laser layer
Solution Approach 1:
The patent applies preliminary cleaning action by placing a cleaning mechanism (such as a wiping roller or air blowing device) before the spraying head. Impurities on the PVC substrate surface are removed before the coating is applied, ensuring that the laser layer distributes evenly without being disturbed by surface contaminants. This resolves the contradiction by eliminating harmful factors beforehand.
3Ease of operation
If a roller-type transmission mechanism is used to deliver the PVC substrate, then the substrate can be transported to different stations, but the coating layer becomes uneven during delivery
Solution Approach 1:
The patent applies preliminary curing action by positioning the UV curing machine to cure the coating immediately after spraying, before the substrate reaches the roller transmission mechanism. This ensures the coating is already solidified and will not be disturbed or become uneven during subsequent substrate delivery by the rollers, thus resolving the contradiction between ease of operation and manufacturing precision.
4Ease of manufacture
If downward spraying method is used to form the laser layer, then the coating can be applied to the PVC substrate, but the resulting laser layer is uneven
Solution Approach 1:
The patent applies preliminary cleaning action by placing a cleaning mechanism before the spraying head to ensure the PVC substrate surface is free of impurities. This creates an optimal surface for coating adhesion and even distribution, compensating for the limitations of the downward spraying method and improving laser layer uniformity while maintaining manufacturing simplicity.
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
The solution significantly improves the evenness of the laser layer by maintaining coating tension, removing impurities, and ensuring timely curing, resulting in a more uniform coating layer.
Implementation Method 1
a curing mechanism is disposed in a fitting manner at a coating position, and the curing mechanism is configured to implement solidification of the coating
Data Source
AI summary
The present invention discloses a process and device for preparing laser PVC. The device includes an upper transmission roller, a support mechanism, a spraying mechanism, an impurity removal mechanism, and a lower transmission roller; the upper transmission roller is disposed above the lower transmission roller, and the two are configured to implement delivery of a PVC film at a station for preparing a laser layer by spraying; the support mechanism is disposed between the upper transmission roller and the lower transmission roller and is in contact with a back surface of the PVC film, and the spraying mechanism is disposed opposite to the support mechanism; and a curing mechanism is disposed in a fitting manner at the coating position; and the impurity removal mechanism is disposed at a front end of the spraying mechanism.