Sewing Machine Attachment for Automated Parchment Embossing
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Solution Overview
Problem
Existing methods for creating patterns on workpieces, such as dot impact devices and emboss templates, are limited in application and require complex, time-consuming processes for forming embosses and holes, making them unsuitable for commercial art and personal hobbies like parchment crafting.
Innovation Solution
A workpiece processing attachment is developed for sewing machines, featuring a presser foot, presser bar, needle bar, and connecting elements that allow for the formation of complex patterns by moving these components up and down to create embosses and holes, with a control system to automate the pattern formation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a dot impact device is used to form embosses and holes on workpieces, then pattern formation is achieved, but the device is oversized and limited in application
Solution Approach 1:
The patent adapts an existing sewing machine to perform multiple functions: traditional sewing operations and parchment crafting (forming embosses and holes). By utilizing the sewing machine's existing needle, needle bar, and presser foot mechanisms, the invention creates a universal device that can handle both sewing and pattern formation tasks, thereby improving adaptability without increasing device size
Solution Approach 2:
The invention merges the parchment crafting attachment with the sewing machine structure. The attachment integrates the needle, needle bar, and presser foot components into the existing sewing machine framework, combining two separate functions (sewing and embossing) into a single unified system, which resolves the contradiction between versatility and device size
2Adaptability or versatility
If emboss templates are used to create patterns, then pattern formation is achieved, but the number of templates increases with the number of patterns and the work involves complexity
Solution Approach 1:
The sewing machine attachment serves as a universal tool for creating multiple different patterns through programmed control. Instead of requiring separate physical templates for each pattern, the single attachment can be controlled via computer to form various emboss and hole patterns, thereby achieving pattern variety without increasing the number of physical components or templates
Solution Approach 2:
The invention replaces the manual mechanical template system with an automated computer-controlled system. The control unit stores pattern data and automatically guides the needle and presser foot movements to create different patterns, substituting the need for multiple physical templates with digital pattern storage and automated mechanical control, thus reducing device complexity while maintaining pattern variety
3Productivity
If patterns are formed manually using emboss templates, then pattern formation is achieved, but the work is time consuming
Solution Approach 1:
The invention replaces manual template-based pattern formation with an automated computer-controlled system. The control unit automatically directs the needle and presser foot to create patterns based on stored digital data, eliminating the time-consuming manual operations of positioning and tracing templates, thereby significantly improving productivity and reducing time loss
Solution Approach 2:
The control unit stores pattern data in advance, allowing the system to automatically execute pre-programmed patterns without requiring real-time manual intervention. This preliminary preparation of pattern data enables rapid, automated pattern formation, improving productivity by eliminating the step-by-step manual process
4Adaptability or versatility
If a sewing machine is adapted for parchment crafting, then existing mechanisms are utilized, but the needle bar movement must be stopped during presser bar movement for coordinate control
Solution Approach 1:
The invention replaces complex mechanical coordination mechanisms with computer control. The control unit independently manages the needle bar and presser bar movements through digital programming, allowing precise coordinate control without requiring intricate mechanical linkages or synchronization mechanisms, thus achieving adaptability while managing device complexity through automation
Data Source
AI summary
A workpiece processing attachment detachably attached to a sewing machine including a presser foot, a presser bar having the presser foot detachably attached to its lower end, a presser bar vertically moving mechanism, a sewing needle, a needle clamp having the sewing needle detachably attached thereto, a needle bar having the needle clamp attached thereto, and a needle bar vertically moving mechanism, the workpiece processing attachment, including a body detachably attached to the lower end of the presser bar; a connecting element capable of being connected to the needle clamp and movable up and down with the needle bar being moved up and down by the needle bar vertically moving mechanism; a needle penetrating the workpiece to form a hole in the workpiece; and a needle vertically moving mechanism moving the needle up and down by the up and down movement of the connecting element.