Blade Unit Clamping Mechanism for Linerless Label Cutting
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Solution Overview
Problem
Existing methods for cutting off self-adhesive linerless endless tape labels or carrier tape labels require additional and costly components, such as presenters, to hold and remove individual labels, which increases operational costs.
Innovation Solution
A method where the blade unit of a label printer is traveled to completely cut off labels and hold them at the transport roller using a clamping mechanism, eliminating the need for additional presenters by using a cutting blade with a fixed overhang and a spring-loaded design to ensure secure holding until the label is removed by an operator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a presenter is connected downstream of the label printer to hold and remove individual labels, then individual label removal is enabled, but device complexity and cost increase
Solution Approach 1:
The holding function previously performed by a separate presenter component is merged into the cutter assembly itself. The blade unit is designed with an integrated holding mechanism that combines cutting and holding functions in one component, eliminating the need for an additional presenter downstream of the label printer.
Solution Approach 2:
The blade unit is designed to perform multiple functions: cutting the label and holding the cut-off label. This multi-functional design allows the same component to serve both cutting and holding purposes, replacing the need for a separate presenter component.
2Manufacturing precision
If the blade unit travels completely through the label to cut it off, then cutting precision is improved, but the cut-off label falls and requires additional holding mechanism
Solution Approach 1:
The holding function is merged into the cutting mechanism. The blade unit includes an integrated holding mechanism that captures and retains the cut-off label immediately after cutting, combining both cutting and holding functions in one component.
Solution Approach 2:
The blade unit acts as an intermediary between the cutting action and the label output. It not only performs the cutting function but also serves as a temporary holder for the cut-off label before it is removed, mediating the transition from cutting to label delivery.
3Productivity
If the blade unit is traveled back to start position after each cut, then productivity is improved, but time is lost during position changes
Solution Approach 1:
The blade unit performs periodic reciprocating movements between the start position and cutting position. After completing a cut and holding the label, the blade unit automatically returns to the start position, creating a rhythmic cycle of cutting, holding, returning, and repeating, which optimizes continuous operation.
Solution Approach 2:
The system incorporates automatic detection of label removal and triggers the blade unit's return to start position accordingly. This feedback mechanism ensures the blade unit only returns when necessary, minimizing idle time and optimizing the cutting cycle.
Data Source
AI summary
Disclosed is a method of cutting off self-adhesive linerless endless tape labels, using a cutter of a label printer, wherein the cutter comprises a transport roller, which is rotatable about an axis of rotation, and a blade unit that is linearly travelable in parallel with the axis of rotation of the transport roller and that has a cutting blade directed in the direction toward the transport roller, where tape labels pass between the transport roller and the blade unit, and are transported further step-wise in a motorized manner, by one label, and, between two consecutive further transport steps, the blade unit is linearly traveled in a motorized manner between a start position and a target position in order to cut off a label, such that the label is completely cut off and is held at the transport roller by the blade unit in the target position of the blade unit.