Tape Printing Apparatus Half Cutter Detection Control
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Solution Overview
Problem
Existing tape printing apparatuses lack the ability to accurately detect whether a tape-shaped member, comprising a printing tape and a peeling tape, is cut by a half cutter without cutting both, especially when the tape's thickness or material differs from the genuine product, leading to potential miscutting issues.
Innovation Solution
A control method and apparatus that utilize a half cutter with a cutting blade and a blade receiving member, along with a discharge feeding section and sensor, to perform blade closing and opening operations while the platen roller is stopped, and then operate the discharge feeding section during the blade opening phase, allowing the detection of tape presence through sensor signals, ensuring accurate cutting without miscutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the half cutter is used to cut the tape-shaped member, then one of the printing tape or peeling paper is cut without cutting the other, but it cannot detect when the tape is miscut due to specification differences
Solution Approach 1:
The discharge sensor provides feedback about the presence or absence of the tape in the discharge feeding section. By monitoring the detection signal during the blade opening operation, the system can detect whether the tape was properly cut or miscut, and adjust subsequent operations accordingly to prevent repeated miscutting.
Solution Approach 2:
The patent replaces mechanical detection methods with a sensor-based detection system. The discharge sensor uses optical or electromagnetic fields to detect the presence or absence of the tape, providing more reliable and automated detection compared to mechanical means.
2Productivity
If the discharge feeding section operates continuously, then tape feeding is efficient, but miscut tape may be discharged without detection
Solution Approach 1:
The discharge feeding section operates periodically rather than continuously. It feeds the tape during the blade opening operation when detection is performed, then stops to allow detection. This periodic operation ensures that every cut is verified before the tape is discharged, maintaining reliability while preserving overall feeding efficiency.
Solution Approach 2:
The detection operation is performed preliminarily before the tape is discharged. By checking the detection signal during the blade opening operation, the system verifies the cutting result before allowing the tape to be fed out, preventing miscut tape from being discharged.
3Productivity
If the platen roller rotates continuously during printing, then printing efficiency is maintained, but the half cutter cannot perform blade closing operation
Solution Approach 1:
The platen roller rotation is made periodic rather than continuous. It rotates during printing operations, stops during the blade closing operation to allow proper cutting, then resumes rotation. This periodic operation enables both efficient printing and proper cutting operations without interfering with each other.
Data Source
AI summary
A control method of a tape printing apparatus the method including performing a blade closing operation using a half cutter in a state in which rotation of a platen roller is stopped and subsequently performing a blade opening operation, causing a discharge feeding section to operate in a period from after the half cutter starts the blade opening operation and until the platen roller starts rotating, and determining presence or absence of a tape in a discharge feeding section based on a detection signal output from a discharge sensor during an operation of the discharge feeding section.