Perforating I-Joists with Dynamic Router and Beam Translation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for perforating I-joists, such as digitally controlled routers and the SawTek system, are inefficient and prone to human error, compromising the strength of the beams due to manual operation and limitations in hole size and positioning, which can lead to incorrect placement or sizing of holes.
Innovation Solution
A cutting apparatus with a main longitudinal support structure, controllable translating means, a detector, pressing means, and a controllable router, all connected to a controller that stores and executes a predetermined perforation pattern, allowing for precise and efficient longitudinal and transverse movement of the router to perforate the beam according to a predetermined pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manually operated digitally controlled routers are used to cut holes in I-joists, then flexibility in hole placement is achieved, but productivity is limited and manufacturing precision deteriorates due to human error
Solution Approach 1:
The system uses automatic detection and control mechanisms where the detector identifies beam presence and the controller automatically adjusts router positioning and cutting parameters, eliminating the need for manual measurement and operation while maintaining precision
Solution Approach 2:
Manual mechanical positioning and operation is replaced with an automated control system that uses detectors, controllers, and programmed routing to achieve both high productivity and precise hole placement without human intervention
2Ease of operation
If manually operated digitally controlled routers are used to cut holes in I-joists, then flexibility in hole placement is achieved, but manufacturing precision deteriorates due to incorrect placement or sizing of holes
Solution Approach 1:
The detector provides real-time feedback on beam presence and positioning, allowing the controller to automatically adjust the router's position and cutting parameters to ensure precise hole placement according to the predetermined pattern
Solution Approach 2:
Manual measurement and positioning operations are replaced with an automated optical or sensing system that detects beam features and calculates precise cutting positions, eliminating human error in measurement and positioning
3Extent of automation
If the SawTek system is used to move beams longitudinally, then automation is achieved, but productivity deteriorates because the beam must be stopped and clamped prior to cutting
Solution Approach 1:
The beam continues to move continuously through the cutting zone without stopping, and the router adjusts its position to cut holes in the moving beam, maintaining continuous production flow without interruption for clamping or positioning
Solution Approach 2:
The system transitions from static cutting (where the beam is stopped and clamped) to dynamic cutting (where the beam moves continuously and the router adjusts its position relative to the moving beam to achieve precise cuts)
Data Source
AI summary
This invention concerns an apparatus and method for perforating a beam. The apparatus comprises a main longitudinal support structure to support the beam. A cutting zone is located along the main longitudinal support structure. Controllable translating means translate the beam longitudinally in the cutting zone. A detector detects a presence of the beam in the cutting zone and in response, a router is controllably moved substantially orthogonally and transversally with respect to the beam, while the beam is translated. The combined controlled movement of the router and the beam results in a perforation of the beam following a predetermined perforation pattern.