Retractable Floating Restricting Member for Sheet Feeding
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Solution Overview
Problem
Conventional sheet feeding devices with floating restricting members interfere with operations, cause damage, and limit load capacity due to their design, which restricts the placement and removal of sheets and affects the working space.
Innovation Solution
The sheet feeding device incorporates a floating restricting member that is retractable and movable, with a mechanism that allows it to be retracted during sheet placement and removal, preventing interference and damage, and is designed to adjust its position to accommodate various sheet types without limiting load capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a floating restricting member is provided to restrict the lifting position of floated sheets, then sheet separation stability is improved, but the member interferes with sheet placement and removal operations
Solution Approach 1:
The floating restricting member is designed to be movable rather than fixed, allowing it to dynamically adjust its position based on operational needs. During sheet feeding, it extends to restrict floating; during placement/removal, it retracts to avoid interference
Solution Approach 2:
The floating restricting member is retracted in advance before sheet placement or removal operations begin, preventing any potential interference before it occurs. This preliminary retraction ensures smooth operations without contact with sheets or operator hands
2Reliability
If the floating restricting member is always ejected to restrict sheet lifting, then sheet separation is maintained, but it limits the load capacity of sheets
Solution Approach 1:
The floating restricting member transitions from a static ejected state to a dynamic retracted state, allowing the system to adapt to different sheet loads. When high load capacity is needed, the member retracts; when sheet separation is critical, it extends
Solution Approach 2:
The position parameter of the floating restricting member is changed between retracted and extended states based on operational requirements. This parameter change allows the system to accommodate various sheet types and loads while maintaining separation when needed
3Ease of operation
If the floating restricting member is rotatable in vertical direction, then it can release suctioned sheets, but it causes contact with sheets or hands during operations
Solution Approach 1:
The floating restricting member is retracted in advance before placement or removal operations to prevent contact with operator hands or sheets. This preliminary retraction eliminates the harmful contact effect before it can occur
Solution Approach 2:
The floating restricting member is completely extracted from the operational zone during sheet placement and removal, separating it from the area where sheets are being handled. This extraction prevents any potential contact damage while maintaining the release function when needed
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
The solution prevents interference with sheet operations, avoids damage to the device and sheets, and enhances the load capacity by allowing for efficient placement and removal of sheets without restrictions, improving the overall functionality and usability of the sheet feeding device.
Implementation Method 1
a friction separation method using a sheet feeding roller or an air separation method using air blowing is used... separation air is blown to a sheet that is suctioned onto a conveyance belt due to a negative pressure
Implementation Method 2
separation air is blown to a sheet that is suctioned onto a conveyance belt due to a negative pressure
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
There are provided a floating restricting member (340) that restricts the floating position of a bundle of sheets (1); and a holding mechanism (350) that holds the floating restricting member (340) relative to a side fence (137). The floating restricting member (340) includes a sheet contact section (341) that is brought into contact with the bundle of sheets (1) from above; and a sheet-floating restricting section (342) that restricts the floating position of the floating sheet that is floated while air is blown thereto. The holding mechanism (350) sets the floating restricting member (340) in the initial state where the sheet-floating restricting section (342) restricts the floating position of the sheet, in the sheet-placing time retracted state where the bundle of sheets (1) to be supplied is pushed against the sheet contact section (341) so that the floating restricting member (340) is retracted, and in the sheet-ejecting time retracted state where, when the bundle of sheets (1) is to be removed, the sheet is pushed against the sheet contact section (341) from below so that the floating restricting member (340) is retracted.