Label Printer Peeling Assembly Ribbon Separation
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Solution Overview
Problem
Conventional thermal transfer printing systems face difficulties in preventing the printed label from sticking to the carbon ribbon, making subsequent operations cumbersome, especially when rewinding the ribbon.
Innovation Solution
A label printer design incorporating a peeling assembly with a peeling member that inserts between the label sheet and the carbon ribbon, preventing sticking and facilitating easy removal of the printed label from the ribbon.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If thermal transfer printing is performed using a carbon ribbon and platen roller, then the toners are successfully transferred to the label sheet, but the printed label sheet sticks to the ribbon and cannot be easily separated
Solution Approach 1:
A release film is introduced as an intermediary layer between the carbon ribbon and the label sheet. This release film prevents direct adhesion between the printed label and the carbon ribbon, allowing the label to be easily separated after printing while maintaining effective toner transfer to the label sheet.
2Ease of operation
If the printed label sheet is allowed to stick to the ribbon, then separation is achieved, but subsequent operations become troublesome and time-consuming
Solution Approach 1:
The release film is pre-positioned on the carbon ribbon before the printing process. This preliminary action ensures that when the label sheet is printed and subsequently removed from the platen roller, it does not adhere to the carbon ribbon, eliminating the need for time-consuming manual separation and ribbon rewinding operations.
3Ease of operation
If a release film is placed between the carbon ribbon and label sheet, then label sticking is prevented, but the device complexity increases
Solution Approach 1:
The release film serves multiple functions: it prevents label adhesion to the carbon ribbon, maintains toner transfer quality to the label sheet, and facilitates easy label separation. By consolidating these functions into a single component, the overall device complexity is minimized while achieving the desired operational improvements.
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 effectively prevents the label from adhering to the ribbon, simplifying the printing and rewinding process by ensuring the label can be successfully peeled and outputted without sticking issues.
Implementation Method 1
the carbon ribbon and the label sheet are overlapped and pressed by a platen roller and a thermal print head while heat is applied
Implementation Method 2
The peeling member has a peeling edge that is configured to be inserted between the upper major surface of the label sheet and the carbon ribbon
Data Source
AI summary
A label printer includes a platen roller, a printing device, a ribbon conveying device, and a peeling assembly disposed within a machine housing which defines a conveyance channel therein for conveying a label sheet, and a print area between the platen roller and the printing device. The peeling assembly has a peeling member which is disposed at an end of the printing device and immediately downstream of the print area, and which has a peeling edge that faces and extends across the print area and that is configured to be inserted between an upper major surface of the label sheet and a carbon ribbon so as to facilitate output of the printed label sheet.