Pivoting Pressing Unit for Corrugated Board Single Facer Belt Replacement
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Solution Overview
Problem
Existing single facer machines for manufacturing corrugated boards face challenges with complex and costly continuous flexible members, requiring careful traction and position control, and complex mechanical solutions for replacing corrugating rollers and pressing units, leading to machine downtime and operational complexities.
Innovation Solution
A single facer design featuring a pivoting pressing unit with guide rollers and actuators that allows for easy removal and replacement of the continuous flexible member, simplifying the structure and reducing the need for complex control systems by using a pivoting structure with a cantilevered support mechanism and adjustable guide rollers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a continuous flexible member (pressing belt) is used in the pressing unit, then the gluing function is achieved, but the structure becomes complex and costly, requiring careful traction and position control
Solution Approach 1:
The pressing unit is made movable relative to the corrugating rollers through a pivoting mechanism. The pressing unit can pivot between a working position (where it presses against the corrugating rollers) and a replacement position (where it is moved away to allow access). This dynamic positioning eliminates the need for complex control systems while maintaining reliable gluing function when needed.
Solution Approach 2:
The pressing unit is separated from the corrugating rollers as independent components. The pressing unit with its continuous flexible member can be independently positioned and replaced without affecting the corrugating rollers, simplifying the overall system structure and reducing interdependencies that would require complex control.
2Stability of the object's composition
If the pressing unit remains in place during corrugating roller replacement, then structural stability is maintained, but replacement becomes complex requiring movement of corrugating rollers away from the pressing member
Solution Approach 1:
The pressing unit is designed to pivot between a working position (maintaining structural stability during operation) and a replacement position (moving away from the corrugating rollers to facilitate easy replacement). This dynamic design allows the system to switch between stability and ease of maintenance as needed.
Solution Approach 2:
The pressing unit is pre-configured with a pivoting mechanism that allows it to be quickly moved to the replacement position before roller replacement begins. This preliminary positioning action simplifies the subsequent replacement process by providing immediate access to the corrugating rollers without requiring complex disassembly or movement mechanisms.
3Ease of operation
If the pressing unit is moved away to allow corrugating roller replacement, then replacement simplicity is achieved, but machine downtime increases
Solution Approach 1:
The pressing unit pivots on a hinge axis, allowing rapid movement between working and replacement positions. This dynamic motion is much faster than linear translation or disassembly mechanisms, minimizing the time the pressing unit needs to be moved away and reducing overall machine downtime while maintaining replacement simplicity.
Solution Approach 2:
The pivoting mechanism serves multiple functions: it enables quick positioning for replacement, maintains structural stability during pressing operation, and provides a compact configuration that reduces the space needed for replacement operations. This multi-functionality reduces the overall time required for maintenance cycles.
4Manufacturing precision
If a complex system of actuators and guide rollers is used to control the pressing belt, then proper belt guidance and stretch control are achieved, but device complexity increases
Solution Approach 1:
The pressing unit itself provides the necessary guidance and positioning through its pivoting motion. As the pressing unit pivots between working and replacement positions, it naturally maintains proper alignment and tension on the continuous flexible member without requiring separate actuator systems or multiple guide rollers, thereby reducing mechanical complexity while preserving manufacturing precision.
Data Source
AI summary
The single facer includes a load-bearing frame for housing a first corrugating roller and a second corrugating roller, meshing with each other and mounted in the load-bearing frame. The single facer further includes a pivoting structure, pivoted to the load-bearing frame about a pivoting axis and including two pivoting arms supporting two guide rollers of a continuous flexible member. Two actuators raise and lower the pivoting arms and the guide rollers. A hinge system allows to keep the pivoting structure cantilevered to replace the continuous flexible member.