Jewelry Press With Interchangeable Mandrels
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Solution Overview
Problem
Existing machines for bending silverware into jewelry require significant strength, are cumbersome to set up and change configurations, and are often heavy and difficult to transport, making them inefficient for creating various types of jewelry like rings and bracelets.
Innovation Solution
A compact, manually operated press with interchangeable mandrels and forming blocks that allow for quick configuration and reconfiguration without tools, enabling efficient bending of silverware into different jewelry forms, including rings and bracelets, with a focus on lightweight design and easy handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional benders or presses are used to bend silverware, then jewelry can be formed, but much strength is required on the part of the artist
Solution Approach 1:
The device divides the bending force application into multiple points along the silverware piece using segmented forming blocks, which distributes the stress and reduces the peak force required by the user while still achieving the desired bend.
Solution Approach 2:
A lever arm acts as an intermediary mechanical element that multiplies the user's input force. The lever provides mechanical advantage, converting a small user-applied force into a larger bending force at the forming blocks without requiring the user to directly apply high strength.
2Productivity
If traditional benders or presses are used, then jewelry bending is possible, but additional hand tools and cumbersome setup are required
Solution Approach 1:
The device integrates multiple functions into a single tool: the adjustable lever provides force multiplication, interchangeable forming blocks create different jewelry styles, and the modular design allows quick reconfiguration. This eliminates the need for multiple separate hand tools and setup procedures.
Solution Approach 2:
The device features dynamic, adjustable components including movable forming blocks that can be repositioned along the lever arm, and interchangeable mandrels of different sizes. This allows the same device to adapt to various jewelry-making tasks without requiring complex setup or multiple fixed tools.
3Ease of operation
If traditional benders or shaping tools are used, then jewelry can be formed, but they are very heavy and cumbersome to transport
Solution Approach 1:
The device is divided into separable components including the lever arm, forming blocks, and mandrels that can be detached and stored compactly. This segmented design reduces the weight of the main body and allows users to transport only the essential components, making the overall system more portable.
Solution Approach 2:
The forming blocks are made from thin-walled aluminum extrusions that provide the necessary structural strength for bending silverware while minimizing weight. This use of thin-walled structures achieves the optimal balance between mechanical strength and portability.
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
The press enables efficient and versatile jewelry-making by allowing quick switching between ring and bracelet formation, reducing user effort and weight, while maintaining high mechanical advantage and productivity, weighing less than 15 lbs.
Implementation Method 1
A manual lever or other actuating mechanism turns a horizontal axle in the support arm. A rotary-to-linear coupling such as a rack-and-pinion mechanism converts rotation of the axle to vertical linear motion of the ram.
Implementation Method 2
A manual lever or other actuating mechanism turns a horizontal axle in the support arm.
Data Source
AI summary
A workpiece bending press has a vertical ram with a lateral through-hole near the bottom. A first elongated mandrel has an end that mounts in the through-hole. The first mandrel mounting end has a cavity that receives an end of a second mandrel. The first mandrel then extends from a first side of the ram, and the second mandrel extends from the opposite side of the ram. Workpiece forming blocks may be placed under each mandrel, providing two different mandrels and forming blocks on the ram at once for different pressing stages or different workpiece diameters. One or both mandrels may be part of a set of interchangeable mandrels with different outer diameters. The ram may be operated by a lever that is quickly movable to the left or right side of the press for convenient use of mandrels extending from the left and right sides of the ram.