Adhesive Applying Unit With Bend-Feedback Roller Speed Control
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Solution Overview
Problem
Retrofitting a transfer part for adhesive application to a printer is complex and difficult, requiring sophisticated control.
Innovation Solution
An applying unit with a roller, sensor, and control device that adjusts roller speed based on sensor feedback to apply adhesive to a recording sheet, ensuring compatibility with various printers without complex control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a transfer part is retrofitted to a printer to apply adhesive to a recording sheet, then adhesive application function is added, but device complexity and control difficulty increase significantly
Solution Approach 1:
The adhesive transfer function is extracted from the printer system and placed in a separate, dedicated applying unit. This allows the applying unit to be retrofitted to various printers without modifying the printer's core control system, thereby adding adhesive application capability while avoiding increased control complexity in the printer itself.
Solution Approach 2:
A sensor acts as an intermediary between the roller and the control device, detecting the bend of the recording sheet and converting this physical state into control signals. This intermediary mechanism enables simple feedback control to synchronize the roller's rotation speed with the sheet's movement, resolving the control complexity issue.
2Device complexity
If the roller rotation speed is not adjusted according to sheet bend detection, then the structure remains simple, but adhesive coating uniformity deteriorates
Solution Approach 1:
The sensor provides real-time feedback on the recording sheet's bend state to the control device, which adjusts the roller's rotation speed accordingly. This feedback mechanism ensures that the roller maintains optimal contact and adhesive application pressure throughout the sheet's movement, achieving uniform adhesive coating without requiring complex mechanical structures.
Solution Approach 2:
The roller's rotation speed is made dynamic rather than fixed, allowing it to adjust in real-time based on the sheet's bend detection. This dynamic adjustment enables the system to maintain optimal adhesive application conditions while keeping the overall structure simple, as the control is achieved through software-based speed modulation rather than complex mechanical mechanisms.
Data Source
AI summary
According to one aspect of the present disclosure, an applying unit that can be connected to a printer and apply an adhesive to a recording sheet includes: a roller configured to transport the recording sheet that is discharged from the printer; a sensor configured to detect the bend of the recording sheet; an applying portion configured to apply the adhesive to the recording sheet; and a control device configured to adjust the rotation speed of the roller according to the value detected by the sensor.