Corner Connection Device with Lowerable Pressing Heads
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Solution Overview
Problem
Existing corner connection devices for window or door frames from hollow profile elements face difficulties in handling and maneuvering larger frame dimensions, as positioning and fastening elements, as well as punching heads, obstruct the movement and rotation within the working plane, limiting the direction of frame insertion and removal.
Innovation Solution
The solution involves lowering all positioning and fastening elements, as well as punching heads, below the working plane of the support table after the hollow profile elements are pressed, allowing for easier insertion, rotation, and removal of frames, and enabling the frame to be moved and rotated within the working plane for further processing without lifting it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If positioning elements, fastening elements and punching heads are arranged above the working plane for pressing frame corners, then the pressing operation can be performed effectively, but these elements obstruct the movement and rotation of larger frame dimensions within the working plane
Solution Approach 1:
The positioning elements, fastening elements and punching heads are designed to be movable between an upper position during pressing operations and a lowered position below the working plane for frame manipulation. This dynamic repositioning allows the system to adapt between two functional states: pressing mode and maneuvering mode, resolving the contradiction between effective pressing and ease of frame handling.
Solution Approach 2:
The solution moves the obstructing elements from the two-dimensional working plane into the third dimension (below the working plane). By lowering these elements vertically, the working plane becomes clear for frame insertion, rotation and removal, while the elements remain available for pressing operations when raised back to their functional position.
2Productivity
If the frame is inserted from the center towards the outer corner with fixed positioning elements, then the pressing process can be completed, but the frame cannot be easily removed or repositioned for processing other corners
Solution Approach 1:
The fastening elements are designed with movable positioning that allows them to be released and repositioned after each pressing operation. This enables the frame to be easily removed, rotated, and reinserted for processing of other corners, while maintaining secure positioning during the actual pressing process.
3Device complexity
If punching heads and corner buttons remain in position after pressing, then the device structure remains simple, but they obstruct the working plane for subsequent operations
Solution Approach 1:
The punching heads and corner buttons are designed as movable components that can be lowered below the working plane after pressing operations. This dynamic repositioning clears the working plane for frame manipulation while maintaining the structural integrity and functionality of these elements when raised to their operational positions.
Data Source
Figure 1~3
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Figure 7~9
AI summary
The invention relates to a corner connection device, preferably for producing window or door frames from miter-cut hollow profile elements (10), comprising a supporting table (1) forming a working plane (e), positioning and fastening elements for the profile elements (10), and at least one punching head (5), which has a punching tool (6) for pressing the profile elements (10) together with a corner angle (11). According to the invention, at least individual positioning elements (2, 7) located outside the pressed frame corner, fastening elements (4) or punching heads (5) can be lowered under the working plane (e) of the supporting table (1) after the pressing of the hollow profile elements (10). The frame element can thus be shifted or rotated in the working plane (e) of the supporting table (1) without effort.