Sheet Processing Machine Winding Control for Storage Capacity
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Solution Overview
Problem
Conventional sheet processing machines face challenges in controlling the winding state of storage units, which affects the efficient storage and recognition of sheets such as banknotes.
Innovation Solution
A sheet processing machine equipped with a reel, a drum, and stepper motors, controlled by a unit that adjusts the winding speed and tension of the tape to manage the interval between sheets, allowing for precise control of the winding state by varying the speed between winding one sheet and the next.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the winding speed is reduced to control the interval between sheets, then the winding state control precision is improved, but the storage capacity decreases
Solution Approach 1:
The patent applies dynamics by making the winding speed variable rather than constant. The control unit dynamically adjusts the winding speed based on the current winding state and target interval, allowing the system to optimize between control precision and storage capacity at different operational stages.
Solution Approach 2:
The patent changes the parameter of winding speed to control the interval between sheets. By adjusting this parameter dynamically, the system can achieve precise interval control while maximizing storage capacity through optimized speed profiles during the winding process.
2Productivity
If the winding speed is increased to improve storage capacity, then the productivity is improved, but the winding state control precision deteriorates
Solution Approach 1:
The system dynamically adjusts winding speed based on real-time conditions, allowing high speed during phases where precision requirements are lower and reduced speed during phases requiring precise interval control, thus achieving both high productivity and precision.
Solution Approach 2:
The control unit implements periodic adjustment of winding speed based on the winding state, creating a rhythmic pattern of acceleration and deceleration that maintains control precision while maximizing overall storage capacity through optimized cycling.
3Quantity of substance
If the interval between sheets is reduced to increase storage capacity, then the quantity of sheets stored increases, but the risk of jamming increases
Solution Approach 1:
The control unit uses feedback from the winding state to adjust the interval between sheets dynamically. By continuously monitoring the actual winding conditions and comparing them with target values, the system maintains optimal intervals that maximize storage capacity while preventing jamming through real-time correction.
Solution Approach 2:
The system dynamically adjusts the interval between sheets based on current winding conditions, allowing the interval to vary within safe limits to maximize storage while maintaining reliability. The dynamic adjustment prevents fixed, suboptimal intervals that would either cause jamming or waste space.
Data Source
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AI summary
The storage amount of the storage is increased. A sheet processing machine is the sheet processing machine for storing sheets transported by a transport unit, the sheet processing machine including: a reel (41) on which a first end side of a tape (43) is wound; a first stepper motor (44) for rotating the reel about a rotation axis of the reel; a drum (42) for winding up a second end side of the tape together with the sheets to form a winding body (46) together with the tape and the sheets; a second stepper motor (45) for rotating the drum about a rotation axis of the drum; and a control unit (18) for changing interval between the sheets wound on the drum by controlling a rotation of the first stepper motor and the second stepper motor based on a parameter indicating a condition of the winding body (46).