Cap-Frame Setting Frame with Disc Support
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Solution Overview
Problem
Conventional cap-frame setting frames for embroidery sewing machines face issues with load concentration on support shafts leading to low durability and uneven rotation, making it difficult to securely attach and detach caps, especially the rear side, which affects working efficiency.
Innovation Solution
A cap-frame setting frame design featuring a base frame with a disc-shaped support and a rotating frame that is rotatably supported by a disc-shaped member with an annular projection, distributing the load and providing grips for easy rotation, allowing smooth and efficient attachment and detachment of cap frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a support shaft is used to rotatably support the rotating frame, then the structure is simple, but load concentration occurs on the support shaft and its vicinity causing low durability
Solution Approach 1:
The rotating frame is divided into a disc-shaped rotating frame body and a separate cylindrical mounting portion. The mounting portion is fitted into a corresponding cavity in the base frame, distributing the load across a larger area rather than concentrating it on a single shaft, thereby improving durability while maintaining structural simplicity.
2Device complexity
If pins are deviated from the rotational center to support the rotating frame, then the structure is simplified, but the rotating frame cannot rotate smoothly
Solution Approach 1:
The cylindrical mounting portion is positioned concentrically with the rotational center of the disc-shaped rotating frame body, creating an equipotential rotational path. This ensures that the rotating frame rotates smoothly without deviation, while the cylindrical shape itself provides the simplified structural support without requiring additional pins.
3Device complexity
If no grips are provided on the rotating frame, then the structure is simpler, but the rotating frame is hard to rotate
Solution Approach 1:
Grips are integrated directly into the disc-shaped rotating frame body, merging the gripping function with the rotational component itself. This eliminates the need for separate gripping mechanisms while making the rotating frame easy to rotate by hand, thus improving ease of operation without significantly increasing structural complexity.
Data Source
AI summary
A cap-frame setting frame to which a cap frame holding a cap with a part on which embroidery is sewn by an embroidery sewing machine is detachably attached. The cap-frame setting frame includes a base frame having a distal end and a proximal end and including a fixing mechanism which is located at the proximal end side and is to be fixed to a predetermined work table, a rotating frame located at the distal end side of the base frame and having a cylindrical mount portion to which the cap frame is mounted so as to be positioned, a disc-shaped support secured to the base frame and configured to rotatably support the rotating frame, and a fitting portion located on the base frame to be fitted with an outer periphery of the disc-shaped support, thereby being rotatably supported on the base frame.