Rotary Multi-Laser Bottle Marking for Label-Free PET Packaging
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Solution Overview
Problem
Existing label-free PET bottles can only mark a small amount of content directly on the bottle body using laser printing, limiting advertising and sales channels, and require manual label removal which wastes resources and complicates recycling.
Innovation Solution
An automatic production device with a rotating annular plate and multiple laser heads for continuous, high-capacity labeling of packaging bottles, allowing for extensive product information to be marked directly on the bottles without labels, reducing energy consumption and maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If laser printing technology is used to mark bottle bodies, then label-free packaging is achieved and recycling is simplified, but the amount of content that can be marked is limited and advertising capabilities are reduced
Solution Approach 1:
The labeling system is segmented into multiple independent laser heads (first laser head, second laser head, etc.) arranged in array, each capable of marking specific content. This segmentation allows the system to mark extensive product information and advertising content that would be impossible with a single laser, while still maintaining the label-free approach and simplified recycling benefits.
2Device complexity
If a single laser head is used for marking, then the device structure is simple, but the labeling capacity and production efficiency are limited
Solution Approach 1:
Multiple laser heads are merged into a single integrated labeling device that shares common structural components (mounting frame, positioning mechanisms, control system). This merging approach increases labeling capacity and productivity while controlling device complexity through shared infrastructure rather than completely independent systems.
Solution Approach 2:
The labeling device is designed with multi-functionality, where the array of laser heads can mark different types of content (product information, advertising, barcodes, QR codes) on various bottle positions simultaneously. This universal design increases productivity without proportionally increasing device complexity.
3Loss of information
If extensive product information is marked on bottle bodies, then advertising capabilities are enhanced, but the marking process becomes more complex and time-consuming
Solution Approach 1:
The labeling device operates continuously with multiple laser heads working simultaneously on different sections of the bottle or on different bottles in sequence. This continuous action allows extensive product information and advertising content to be marked without proportionally increasing the total marking time, as the laser heads operate in parallel rather than sequentially.
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
Enables large-breadth and high-capacity labeling of packaging bottles, enhancing advertising capabilities and meeting production demands while simplifying recycling by eliminating the need for label removal and reducing resource waste.
Implementation Method 1
laser printing technology is utilized to label the bottle body
Implementation Method 2
the bottle bodies sequentially rotate to the front of the plurality of laser heads, and the product information content to be labeled on the bottle bodies is pre-divided into multiple printing modules
Data Source
AI summary
The present application relates to an automatic production equipment for label-free packaging bottles, which belongs to the technical field of packaging bottle production. The equipment comprises a machine frame, wherein a bottle body conveying device and a bottle body labeling device are arranged on the machine frame, wherein the bottle body labeling device comprises a rotating shaft arranged on the machine frame and an driving annular plate coaxially fixed on the rotating shaft, a driving mechanism for driving the rotating shaft to rotate is arranged on the machine frame, a plurality of storage plates are rotatably arranged on a top portion of the driving annular plate, the plurality of storage plates are distributed in a circular array along a circumferential direction of the driving annular plate, at least one self-rotating motor for driving each of the plurality of storage plates to rotate is arranged at a bottom portion of the driving annular plate, a servo annular plate is coaxially fixed on the rotating shaft, pressing assemblies corresponding to the storage plates are arranged on the servo annular plate, a plurality of laser heads for bottle labeling are arranged on the machine frame. The present invention is conducive to meeting the labeling requirements of large breadth and high production capacity for packaging bottles, is conducive to the mass production of the label-free packaging bottles, and is conducive to environmental recycling, energy consumption saving, and production cost reduction.