Base Paper Roll Taping Control for Accurate Leading Edge Fixation
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Solution Overview
Problem
Existing corrugating machines face issues with slippage between chucks and medium tubes during paper splicing, leading to gaps, sagging, and reduced detection accuracy of the leading edge of corrugated cardboard base paper, resulting in improper fixation with adhesive tape.
Innovation Solution
A device and method that includes a paper leading edge detection unit, a taping device, and a control unit to control the rotation speed of the base paper roll based on the arrival direction of the leading edge, ensuring precise fixation with adhesive tape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a base paper roll is divided into multiple base paper sheets using a conventional paper sheet dividing device, then the base paper sheets can be processed individually, but the leading edges of the base paper sheets become irregular and bent, causing misalignment during stacking
Solution Approach 1:
The patent applies preliminary action by guiding the base paper roll through a guide device before cutting. The guide device includes guide rollers and a guide plate that pre-align the paper roll, ensuring the leading edge is straight and regular before the cutting operation occurs. This preliminary alignment prevents the irregularity and bending that would otherwise occur during division.
Solution Approach 2:
The patent introduces a guide device as an intermediary between the paper roll and the cutting mechanism. This guide device includes guide rollers and a guide plate that act as mediators to maintain the proper orientation and alignment of the base paper roll during the cutting process, ensuring straight leading edges without requiring changes to the cutting mechanism itself.
2Manufacturing precision
If the base paper roll is guided manually or with simple fixtures, then the device complexity is low, but the guiding precision and alignment of the leading edges are insufficient
Solution Approach 1:
The guide device incorporates adjustable and movable components, including adjustable guide rollers and a movable guide plate, that can be dynamically positioned to accommodate different paper roll sizes and maintain optimal alignment during the cutting process. This dynamic capability achieves high guiding precision without requiring an overly complex fixed structure.
Solution Approach 2:
The guide device is designed with multi-functional components that can handle various base paper roll dimensions and work in conjunction with different cutting mechanisms. The guide rollers and guide plate serve multiple functions including alignment, support, and positioning, reducing the need for separate specialized components and thereby limiting the increase in device complexity.
3Manufacturing precision
If the base paper roll is cut without proper guiding, then the processing speed is high, but the leading edges become irregular requiring rework
Solution Approach 1:
The guide device performs preliminary alignment of the base paper roll before cutting, ensuring that the leading edges are straight and regular from the first pass. This eliminates the need for rework or additional alignment steps, thereby maintaining high processing efficiency while achieving the required precision.
Solution Approach 2:
The guide device enables continuous cutting operation with consistent alignment, allowing the cutting mechanism to operate continuously without interruptions for realignment or correction. The guide rollers and guide plate maintain constant proper positioning throughout the cutting process, ensuring both precision and productivity.
Data Source
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AI summary
A device and a method for processing a base paper roll and a method for manufacturing a corrugated cardboard sheet include a winding device that winds corrugated cardboard base paper drawn out by rotating a base paper roll, a paper leading edge detection unit that detects a leading edge of the corrugated cardboard base paper wound by the winding device, a taping device that fixes the leading edge of the wound corrugated cardboard base paper to an outer peripheral face of the base paper roll with adhesive tape, and a control unit that controls a rotation speed of the base paper roll based on an arrival direction of the leading edge of the corrugated cardboard base paper with respect to the taping device on the outer peripheral face of the base paper roll when the paper leading edge detection unit detects the leading edge of the corrugated cardboard base paper, and activates the taping device after controlling the rotation speed of the base paper roll.