Double-Walled Drawer Frame Assembly With Early Fixture Release
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Solution Overview
Problem
The production process of double-walled drawer frames is inefficient due to the need for the frame to remain in a joining device until adhesive hardens, limiting the progression of further manufacturing steps.
Innovation Solution
A mechanical holding device is used to stabilize the inner wall relative to the outer wall, allowing the joining device to be disengaged early, thus reducing the dwell time and enabling earlier completion of production steps, particularly when gluing, which can shorten the cycle time and increase production output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the double-walled drawer frame remains in the joining device until adhesive hardens, then the bonding strength is ensured, but the production cycle time increases and productivity decreases
Solution Approach 1:
The holding device is installed on the inner wall before the joining operation, establishing preliminary mechanical support that allows the outer wall to be securely positioned during bonding. This preliminary positioning enables the joining device to be removed early without compromising bond strength, as the holding device maintains the required positional stability throughout adhesive curing.
Solution Approach 2:
The holding device acts as an intermediary mechanical support system between the inner and outer walls during the bonding process. It provides the necessary stabilization and positioning function that would otherwise require the joining device to remain in place, thereby enabling early release of the joining device while maintaining bonding reliability.
2Stability of the object's composition
If the joining device remains in contact with both walls during adhesive curing, then positional stability is maintained, but the device complexity and production inefficiency increase
Solution Approach 1:
The positioning function is segmented between two separate devices: the holding device installed on the inner wall and the joining device used for bonding. This segmentation allows the holding device to provide continuous positional stability during curing, while the joining device can be removed after bonding, simplifying the overall production process and reducing device complexity.
Solution Approach 2:
The holding device is self-installed on the inner wall before the joining operation, providing autonomous mechanical support that eliminates the need for the joining device to remain in place during curing. This self-service positioning system simplifies the production process by allowing early release of the joining device while maintaining positional stability.
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
This approach reduces the cycle time in the production process, allowing for a higher quantity of double-walled drawer frames to be produced per unit of time by enabling the holding device to be disengaged before the adhesive fully cures, while minimizing material costs for the holding device.
Implementation Method 1
In the mounting position of the holding device, the first contact surface rests resiliently against the inner wall connection section and/or the second contact surface rests resiliently against the outer wall connection section.
Data Source
Figure 1
Figure 2a~2c
Figure 3
AI summary
Double-walled drawer frame (1) with an inner wall (2) and an outer wall (3) that can be bonded to each other, preferably with adhesive, wherein the inner wall (2) has an inner wall bonding section (2a) and the outer wall (3) has an outer wall bonding section (3a), wherein the inner wall bonding section (2a) and the outer wall bonding section (3a) are arranged in the interior of the double-walled drawer frame (1) in the assembly position and can be bonded to each other for the bonding of the inner wall (2) with the outer wall (3), wherein the inner wall (2) can be stably fixed in its position relative to the outer wall (3) by a mechanical holding device (4) that can be bonded to the inner wall bonding section (2a) and the outer wall bonding section (3a).