Single Facer Pressing Unit Pivoting Structure
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Solution Overview
Problem
Existing single facers 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, leading to machine downtime and potential damage during maintenance.
Innovation Solution
A single facer design featuring a pivoting structure with guide rollers and a control system that allows for easy replacement of corrugating rollers, incorporating a stretching device to maintain tension in the continuous flexible member, reducing the risk of accidental impacts and simplifying the replacement process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a continuous flexible member is used in the pressing unit, then the pressing function is improved, but the device complexity and cost increase due to the need for complex guide rollers and actuators to control belt stretch and position
Solution Approach 1:
The patent extracts the complex control system (actuators and complex guide rollers) from the pressing unit. Instead of using active control mechanisms, the invention uses a simple belt guided by basic guide rollers, eliminating the need for complex actuators while maintaining the pressing function through the belt's inherent flexibility and simplicity.
Solution Approach 2:
The patent replaces expensive, complex continuous flexible members with simpler, more economical alternatives. The new design uses a basic belt that can be easily replaced without requiring complex control systems, reducing both initial cost and maintenance complexity.
2Adaptability or versatility
If the corrugating rollers are replaced, then the manufacturing versatility is improved, but the machine downtime increases due to the need to move the pressing member away
Solution Approach 1:
The patent extracts the pressing function from the corrugating roller assembly. The pressing unit with the continuous flexible member is separated as an independent component that remains in place while the corrugating rollers can be quickly replaced without moving the pressing member, enabling rapid changeover between different board types.
Solution Approach 2:
The patent introduces dynamic independence between the pressing unit and corrugating rollers. The pressing member remains stationary while the corrugating rollers are replaceable without disturbing the pressing unit, allowing dynamic adaptation to different production requirements without downtime.
3Measurement precision
If a complex system of actuators is used to control the belt, then the belt position control is improved, but the device complexity and ease of operation worsen
Solution Approach 1:
The patent removes the complex actuator system entirely. Instead of using multiple actuators to control belt position, the invention relies on the natural guidance of the belt through simple guide rollers and the tension maintained by the pressing unit itself, dramatically simplifying operation while maintaining adequate position control.
Solution Approach 2:
The continuous flexible member serves its own positioning function through the pressing unit's design. The belt is naturally guided and tensioned by the pressing mechanism itself without requiring external actuators, making the system self-regulating and easier to operate.
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 provided with a first guide roller and a second guide roller (35) pivotally supported for rotation on the pivoting structure. A continuous flexible member is guided about the guide rollers. Furthermore, provided for is a control system adapted to displace the pivoting structure to a working position, wherein the continuous flexible member is pressed against the second corrugating roller, and to a raised position, wherein the first guide roller and the second guide roller are spaced from the second corrugating roller.