Sewing Machine Swiveling Head Mechanism for Material Handling
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Solution Overview
Problem
Existing sewing machines face challenges in accessing and processing touch-sensitive sewing materials, particularly those with multiple layers like 'slush skin' used in vehicle interior components, as they are prone to damage during feeding and removal from stitch-forming components.
Innovation Solution
A sewing machine design with a swiveling head mechanism that increases the gap between stitch-forming components, allowing for easier pickup and delivery of sewing materials, combined with a telescopic articulated arm shaft and a locking unit for secure sewing positions, and optionally integrated with robotic or CNC systems for enhanced accessibility and workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the head-side arm housing section is kept in a fixed position for stable sewing, then sewing stability is improved, but accessibility for picking up/delivering sewing material deteriorates
Solution Approach 1:
The head-side arm housing section is made dynamically movable between a sewing position and a preparation position. The swivel joint enables the head-side arm housing section to be rotated relative to the stand-side arm housing section, transforming the system from static to dynamic. This allows the gap between stitch-forming components to be adjusted: reduced during sewing for stability, and increased during preparation for accessibility when picking up or delivering sewing material.
2Manufacturing precision
If the gap between stitch-forming components is reduced for precise sewing, then sewing precision is improved, but the risk of damaging sewing material during feeding/removal increases
Solution Approach 1:
The system dynamically adjusts the gap between stitch-forming components by changing the relative position of the head-side arm housing section. During sewing operations, the gap is minimized for precision. During material loading and unloading, the head-side arm housing section is swiveled to the preparation position, increasing the gap and reducing the risk of damage to touch-sensitive materials such as slush skin.
3Ease of operation
If the head-side arm housing section is swiveled to increase accessibility, then ease of operation is improved, but sewing stability deteriorates
Solution Approach 1:
The swivel joint creates a dynamic system where the head-side arm housing section can be positioned in different configurations. The angle between the stand-side and head-side arm housing sections can be adjusted (preferably between 0° and 45°) to optimize either accessibility or sewing stability depending on the operational phase.
Solution Approach 2:
The system operates in periodic cycles, alternating between the preparation position (for picking up/delivering material) and the sewing position (for stable sewing). This periodic switching between two distinct operational states allows the system to optimize for accessibility during material handling and for stability during sewing, without compromising either function.
Data Source
AI summary
Sewing machine with a sewing machine housing (2) comprising a lower housing part (3), an upper housing part (4) with a sewing head (6) and a stand (5), which connects the lower housing part (3) to the upper housing part (4), wherein the upper housing part (4) comprises a stand-side arm housing section (7), a head-side arm housing section (8) and a joint (23), wherein the joint (23) is arranged in such a manner that the head-side arm housing section (8) can be swiveled between a preparation position for the picking up/delivering of a sewing material and a sewing position for sewing the sewing material.