Carrierless Label Printer Roller Mount for Tool-Free Replacement
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Solution Overview
Problem
Existing label printers require complex processes for replacing the printing roller, often necessitating a service technician, which is inefficient and inconvenient for untrained operators.
Innovation Solution
The printing roller is designed to be easily inserted into a printing roller receptacle and secured by the wiper element, allowing for simple replacement without tools, with a compact design that minimizes label reversal and maximizes printing speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the printing roller is securely fixed in the printing roller receptacle, then the printing roller is held securely in position, but the replacement process becomes complex and requires service technician
Solution Approach 1:
The wiper element is designed to be movable relative to the printing roller receptacle, allowing it to dynamically adjust between holding the printing roller securely during operation and releasing it for easy replacement. The wiper element can be moved to a first position to hold the printing roller and a second position to release it, enabling simple replacement by untrained operators.
2Reliability
If the wiper element is positioned immediately adjacent to the printing roller, then the label stripping function is effective, but the printing roller replacement becomes difficult
Solution Approach 1:
The wiper element is designed to be movable between a first position where it is immediately adjacent to the printing roller for effective label stripping, and a second position where it releases the printing roller for easy replacement. This dynamic positioning resolves the contradiction between maintaining reliable label stripping and enabling simple roller replacement.
3Device complexity
If the transport roller is mounted on the stripper element, then the cutter design becomes compact, but the label reversal distance must be minimized
Solution Approach 1:
The transport roller is mounted directly on the stripper element, merging the cutting function with the label stripping function. This integration creates a compact cutter design while minimizing the distance between the printing roller and transport roller, thereby reducing label reversal distance and maintaining high printing speed.
Data Source
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AI summary
The invention relates to a label printer for printing self-adhesive, carrierless continuous tape labels, comprising a printhead (41) and a driven printing roller (43), wherein the continuous tape labels can be guided along a label web (73) between the printhead and the printing roller, and a wiper element (61) downstream of the printing roller in the transport direction of the continuous tape labels for wiping the labels from the printing roller, wherein the printing roller (43) is interchangeably inserted into a printing roller receptacle (55) of the label printer (19) and is held securely in the printing roller receptacle (55) by the wiper element (61).