Printing Unit Lifting Device for Packaging Material
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-speed packaging material manufacturing systems face challenges in preventing damage to printing unit components due to sudden contact between printing heads and packaging material, particularly during maintenance and operation, and existing flexography processes cannot accommodate dynamic prints like two-dimensional codes.
Innovation Solution
A printing unit with a lifting device that adjusts the position of support rollers relative to printer heads, maintaining a controlled distance and using tension rollers to ensure web tension, along with a control unit for automatic distance adjustment based on material thickness, minimizes the risk of damage and enhances printing quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the printing heads are positioned close to the packaging material for high-speed printing, then printing speed and productivity are improved, but the risk of damage to printing head components increases
Solution Approach 1:
The support roller is made movable relative to the printing head through a lifting device, allowing the distance between them to be dynamically adjusted. During operation, the support roller maintains a controlled small distance for high-speed printing, while during maintenance it can be moved to a service position to prevent contact and damage to the eyelid assembly and other components.
2Ease of operation
If the printing heads are repositioned for maintenance without contact prevention, then ease of operation is improved, but damage to printing head components occurs
Solution Approach 1:
The lifting device acts as an intermediary mechanism between the support roller and the printing head. It provides controlled movement to position the support roller away from the printing head during maintenance, creating a safety buffer that prevents direct contact and potential damage to the eyelid assembly while still allowing operators to access printing heads for servicing.
3Adaptability or versatility
If a separate printing unit is added for dynamic prints, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent combines the dynamic printing capability with the existing flexography printing unit by integrating a movable support roller system. This allows the same printing unit to perform both traditional flexography printing and dynamic printing (such as two-dimensional codes) without requiring a completely separate printing unit, thereby reducing overall system complexity while maintaining versatility.
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
A printing unit (100) for use in a packaging material manufacturing system (10) is provided. The printing unit (100) comprises a plurality of printer rows (110), wherein each printer row (110) comprises at least one printer head (120) and a support roller (130) for guiding the web of packaging material (12) to be printed relative the associated at least one printer head (120). Said printing unit (100) further comprises a support (140) for the one or more support rollers (130) and a lifting device (150) connected to the support (140) for moving the one or more support rollers (130) relative the printer heads (120).