Paper Sheet Handling Machine Guide Roller Pressing Mechanism
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Solution Overview
Problem
Existing paper sheet handling machines face difficulties in stably feeding abnormal paper sheets, such as folded or curled ones, due to shifting and skewing issues caused by kicker roller vibrations and uneven stacking, leading to potential jamming and inefficiencies.
Innovation Solution
Incorporating a pressing member with a rotatable guide roller and protrusion parts that press the paper sheets from above and on both sides, preventing frictional shifts and ensuring proper alignment, along with an auxiliary roller system to securely grasp and feed out paper sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressing member is provided to press the paper sheets stored in the hopper, then the paper sheets are prevented from shifting outside the pressing member, but the upper part of the paper sheets tends to be gradually shifted due to vibration caused by the kicker roller
Solution Approach 1:
A guide roller is introduced as an intermediary component between the pressing member and the paper sheets. The guide roller presses the paper sheets from the side (face of the pressing member) while being rotatable in the feeding direction, thereby preventing the upper part of the paper sheets from shifting due to kicker roller vibrations without creating excessive friction that would cause skewing during feedout.
Solution Approach 2:
The guide roller is designed to be rotatable in the feeding direction of the paper sheets. This dynamic characteristic allows the guide roller to rotate along with the paper sheets during feedout, preventing the paper sheets from being fed out in a skewed state while still providing lateral pressing to prevent shifting.
2Reliability
If the pressing member presses the paper sheets from above, then the paper sheets are stabilized, but friction between the pressing member and paper sheets causes the paper sheets to be fed out in a skewed state
Solution Approach 1:
The guide roller serves as a mediator that provides lateral support and pressing to the paper sheets without creating excessive friction. By positioning the guide roller to press from the side (face of the pressing member) rather than from above, it stabilizes the paper sheets while allowing smooth feedout without skewing.
Solution Approach 2:
The rotatable design of the guide roller in the feeding direction enables it to dynamically adapt to the paper sheet movement. This rotation reduces frictional resistance and prevents the paper sheets from being fed out in a skewed state while maintaining stability during handling.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration stabilizes paper sheets during handling, preventing skewing and shifting, enhancing feeding accuracy and efficiency, and reducing the likelihood of jams, allowing for continuous and secure processing of paper sheets.
Implementation Method 1
there is no frictional force generated between the pressing member and the paper sheets
Data Source
AI summary
A paper sheet handling machine includes: a storage unit 30 for storing therein paper sheets P in a batch form; a kicker roller 2 for providing drive force to the paper sheet P located in the lowest position, among the paper sheets P in the batch form, by rotating; a gate mechanism 5 for grasping each paper sheet P provided with the drive force by the kicker roller 2, and feeding out the paper sheet P along a feed out plane; and a pressing member 11 for pressing, from above, the paper sheets P stored in the storage unit 30. The gate mechanism 5 includes a feed roller 3 provided to the storage unit 30, and a gate member 4 provided to be opposed to the feed roller 3. Further, a guide roller 10, which is rotatable in a feeding direction of the paper sheets P, is provided to a bottom end of the pressing member 11.