Wood Door Component Bead Attachment and Grain Alignment
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Solution Overview
Problem
Existing machines for working door and window component parts of wood or similar suffer from inefficiencies due to the bead detaching from the component part falling on cross members, requiring machine stops for removal and mismatched grain patterns between the bead and component parts, affecting the appearance of the finished product.
Innovation Solution
A machine design featuring a U-shaped bed with longitudinal guide members, a bridge crane, cross members with vises, and a machining unit that allows the bead to remain connected to the component part, enabling continuous operation and precise alignment of grain patterns through electric spindles and a machining head with notcher and blade cutter for forming a bead that matches the component's rib.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the bead is detached from the component part during machining, then the machining operation can be completed, but the bead falls on the cross members requiring machine stops for removal
Solution Approach 1:
The patent introduces an intermediary collection area positioned between the bead detachment point and the cross members. This intermediary structure captures the bead as it detaches, preventing it from falling onto the cross members and causing machine stops. The collection area acts as a mediator that resolves the conflict between completing the machining operation and maintaining continuous productivity.
2Device complexity
If the bead is detached randomly fitted to component parts, then the machining process is simple, but the grain pattern does not match affecting appearance
Solution Approach 1:
The patent applies preliminary action by pre-graining the bead during the machining process before the component part is fully processed. The machining unit imprints the grain pattern on the bead while it is still attached or in position, ensuring that the grain orientation matches the component part. This preliminary graining operation resolves the contradiction by maintaining machining simplicity while achieving precise grain pattern alignment.
Data Source
Figure 1
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AI summary
A machine for working door and window component parts (2) of wood or similar has a bed (3) extending in a first direction (4); cross members (16) mounted on the bed (3) and parallel to a second direction (9) crosswise to the first direction (4); at least one clamping device (17) fitted to each cross member (16) to clamp at least one component part (2); a bridge crane (6) movable along the bed (3) in the first direction (4); and two machining units (12, 29) movable along the bridge crane (6) in the second direction (9); one (29) of the machining units being designed to detach a bead (43) from the component part (2) and fasten the bead (43) to the same component part (2).