Pivot Guide Mechanism for Veneer Sheet Dryer Feed
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Solution Overview
Problem
In veneer sheet feed devices for multistage dryers, the narrow opening space between guide plates causes veneer sheets to easily contact and overlap with adjacent guide plates, leading to inclined conveyance and potential splitting or damage.
Innovation Solution
A pivot mechanism is introduced in the guide members, allowing the starting end of the guide member above the conveyance stage to pivot above the horizontal position of the terminal end, preventing contact with the guide member of the adjacent stage, thus maintaining stable conveyance and preventing overlapping and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If guide plates are arranged radially spread vertically from conveyance upstream side to downstream side, then veneer sheets can be fed to multiple conveyance stages, but the opening space between starting ends of guide plates becomes narrower causing veneer sheets to contact adjacent guide plates
Solution Approach 1:
The guide plate is made pivotable around a pivot shaft, allowing it to dynamically adjust its position. When a veneer sheet contacts the guide plate, the guide plate can rotate to accommodate the contact without causing the veneer sheet to overlap with adjacent guide plates or become damaged, thus maintaining reliable passage while preserving high filling efficiency
Solution Approach 2:
The guide plate is divided into a fixed portion and a pivotable portion separated by a pivot shaft. This segmentation allows the pivotable portion to independently adjust its position when contacted by veneer sheets, resolving the conflict between maintaining narrow opening spaces for high productivity and ensuring stable passage
2Adaptability or versatility
If delivery roller is made pivotable to define carry-in positions, then veneer sheets can be sequentially delivered to different conveyance stages, but the narrow opening space causes veneer sheets to contact guide plates of adjacent stages
Solution Approach 1:
The guide plate's pivotability allows it to dynamically respond to veneer sheet contact, adjusting its angle to prevent harmful contact with adjacent guide plates while maintaining the adaptability for sequential delivery to multiple conveyance stages
Solution Approach 2:
The pivotable guide plate is positioned and angled to preemptively prevent contact between veneer sheets and adjacent guide plates before such contact can occur, eliminating the harmful effect before it manifests
Data Source
AI summary
A veneer sheet feed device for multistage veneer sheet dryer is provided between an auto feeder including a carry-in conveyor and a roll dryer (veneer sheet dryer). The veneer sheet feed device is provided with a guide member and a feed conveyor for feeding a veneer sheet carried in from the carry-in conveyor to each conveyance unit of the roll dryer in this order from a conveyance up stream side. The veneer sheet feed device further provided with a pivot mechanism that allows a starting end of the guide member belonging to the conveyance stage immediately above the conveyance stage in which the veneer sheet is carried this time from the carry-in conveyor to pivot to a portion above a horizontal position of a roller shaft located at a terminal end of this guide member.