Adjustable Sewing Clamp for Flexible Seam Spacing
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Solution Overview
Problem
Existing sewing systems lack flexibility in adjusting seam spacings and clamp positions transverse to the sewing direction, limiting their ability to produce varied seam designs and pocket shapes.
Innovation Solution
Incorporation of a distance adjustment device with a hand wheel and motorized setting wheel, allowing for precise and flexible adjustment of the distance between clamp sections transverse to the sewing direction, enabling independent or synchronized actuation of the clamp sections for optimal material holding and seam formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the clamp sections are fixed in position, then the structural simplicity is maintained, but the flexibility in adjusting seam spacings and clamp positions is limited
Solution Approach 1:
The clamp sections are made adjustable through threaded spindles that enable dynamic repositioning transverse to the sewing direction. The hand wheels provide manual adjustment capability, allowing the clamp sections to be dynamically repositioned according to different sewing requirements while maintaining structural simplicity through straightforward mechanical components.
2Measurement precision
If manual adjustment with hand wheel is used, then the ease of operation is improved, but the precision and control of distance specification is limited
Solution Approach 1:
The hand wheel acts as an intermediary mechanism that translates rotational motion into precise linear adjustment of the clamp sections through the threaded spindle. This mechanical intermediary provides both ease of operation through manual rotation and precise control through the threaded engagement, achieving a balance between operational simplicity and adjustment precision.
3Adaptability or versatility
If the clamp sections are adjusted independently, then the flexibility in positioning is improved, but the synchronization with sewing process and corner cut knives is compromised
Solution Approach 1:
The system provides dynamic adjustability where clamp sections can be positioned independently or synchronously based on operational requirements. The threaded spindle mechanism allows each clamp section to be adjusted independently while maintaining the capability for synchronized movement when needed, offering flexibility without compromising synchronization reliability through proper mechanical coupling options.
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 solution enhances the sewing system's flexibility, enabling the production of complex seam designs, such as wedge-shaped or curved seams, and allows for precise adjustment of clamp positions, improving the stability and adaptability of the sewing process.
Implementation Method 1
An adjusting threaded spindle enables a precise distance setting while at the same time optimizing the stability of the sewing material clamp
Implementation Method 2
A hand wheel according to claim 3 allows manual adjustment of the distance adjustment device for specifying the distance between the clip sections transversely to the sewing direction
Implementation Method 3
A motor-driven setting wheel according to claim 4 allows a controlled specification of the distance between the clamp sections transverse to the sewing direction. A drive motor for the setting wheel can be a stepper motor
Data Source
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AI summary
A sewing system includes a sewing machine for joining an additional material component to a base material component. The sewing system has a material support plate. A material clamp with two clamp sections (9a, 9b) serves to hold the material component against the material support plate on each side of a seam to be produced. At least one distance adjustment device (97a, 97b) is used to specify a distance between the clamp sections (9a, 9b) perpendicular to a sewing direction (2). The distance adjustment device (97) has an adjustment knob (98). Various operating procedures can be implemented with this sewing system, utilizing the distance adjustment device. This results in a sewing system that offers increased flexibility in carrying out a sewing process.