Multi-Rib Label Guide Structure for Printing Apparatus Peeling
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Solution Overview
Problem
Existing printing apparatuses face issues with peeling defects due to strong adhesive forces between labels and mounts, leading to labels being stuck to the peeler unit, which hinders smooth peeling and conveying processes.
Innovation Solution
A printing apparatus design featuring a platen roller, peeler member, roller, and support member with a rib portion that guides peeled labels, comprising first, second, and third ribs inclined at specific angles to manage adhesive forces and bending habits, ensuring labels are conveyed without contact with the third rib, thereby reducing peeling defects and enhancing smooth conveyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rib is provided on the peel base body to prevent label contact, then label peeling is improved, but the label may still be stuck to the peeler unit due to strong adhesive force
Solution Approach 1:
The support member is divided into multiple ribs (first rib, second rib, third rib) with different inclinations arranged in sequence. Each rib segment handles labels with different adhesive strengths or bending habits, dividing the peeling process into multiple stages rather than relying on a single rib structure.
Solution Approach 2:
Different ribs are designed with different inclination angles relative to the conveying direction. The first rib has a steeper inclination for labels with strong adhesive force, while the third rib has a gentler inclination for labels with weak adhesive force or strong bending habits, providing localized optimization for different label characteristics.
2Reliability
If the label is conveyed with strong adhesive force to the peeler unit, then peeling can be achieved, but the label becomes stuck and cannot be smoothly conveyed
Solution Approach 1:
The label's contact state with the ribs is dynamic rather than static. Labels with strong adhesive force contact the first rib and are guided by its inclination, while labels with weak adhesive force or strong bending habits skip the first rib and contact the second or third ribs. This dynamic adaptation allows smooth conveyance for all label types.
Solution Approach 2:
The multiple ribs act as intermediary elements between the peeler unit and the discharged label. Instead of a single rigid guide, the rib sequence provides flexible intermediate guidance points that accommodate different label properties, preventing direct sticking to the peeler unit while ensuring proper conveyance direction.
3Device complexity
If a simple peel base body is used, then device complexity is low, but labels with strong adhesive force or bending habits cannot be properly handled
Solution Approach 1:
The support member is segmented into multiple ribs with different inclinations, allowing the peeler unit to handle diverse label types (strong adhesive force, weak adhesive force, strong bending habits) without requiring a completely redesigned peeler unit for each scenario.
Solution Approach 2:
The multi-rib structure provides universal functionality by accommodating various label characteristics through a single integrated support member. The same peeler unit design can handle labels with different adhesive forces and bending habits, eliminating the need for multiple specialized peeler units.
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 apparatus effectively suppresses peeling defects and ensures smooth label conveyance regardless of adhesive force strength or label rigidity, reducing the risk of labels being stuck to the peeler unit and improving overall processing efficiency.
Implementation Method 1
a peeler member disposed downstream of the platen roller in the first conveying direction, the peeler member being configured to peel off the label from the mount by bending the mount in a second conveying direction
Implementation Method 2
a roller configured to convey the mount bent by the peeler member in the second conveying direction with nipping the mount between the roller and the platen roller
Data Source
AI summary
A printing apparatus includes a platen roller conveying a printing medium in a first direction, a peeler peeling off a label from a mount, a support member supporting a driven roller that conveys the mount in a second direction with the platen roller, and a rib portion provided on the support member and guiding the label peeled off from the mount in the first direction. The rib portion includes a first rib, a second rib and a third rib, continuously in the first direction. The first rib is inclined away from a virtual line in the first direction toward an upstream side from the second rib. The third rib is inclined away from the virtual line in the first direction toward a downstream side from the second rib.