Cookware Spinning Wheel Geometry for Rapid Thick Rim Forming
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Solution Overview
Problem
Conventional spinning machines struggle to rapidly process cookware with a thick rim, which affects the structural strength and service life of cookware.
Innovation Solution
A spinning machine with a specialized spinning wheel featuring a first and second extrusion protrusion, a transition annular surface, and a base material pressing mechanism, allowing for precise control and uniform thickening of the rim.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional spinning machine processes a circular sheet base material, then the spinning treatment can be completed, but the thick rim structure of the cookware cannot be directly formed
Solution Approach 1:
The spinning wheel is divided into multiple functional regions: a first extrusion protrusion for initial pressing, a second extrusion protrusion for rim thickening, and a transition annular surface connecting them. This segmentation allows different zones to perform specific functions - the first protrusion creates the base form, while the second protrusion accumulates material to form the thick rim structure that conventional single-zone spinning wheels cannot achieve
Solution Approach 2:
The spinning wheel applies different pressures and material displacement characteristics at different locations. The first extrusion protrusion applies uniform pressure for base forming, while the second extrusion protrusion creates localized material accumulation at the rim area. The transition annular surface provides a gradual pressure transition zone, ensuring smooth material flow and preventing defects while achieving the desired thick rim structure with uniform thickness
2Manufacturing precision
If the spinning wheel has a complex structure with multiple extrusion protrusions, then the thick rim can be formed, but the processing complexity increases
Solution Approach 1:
Multiple functional elements (first extrusion protrusion, second extrusion protrusion, and transition annular surface) are merged into a single spinning wheel component. This integration allows the spinning wheel to perform multiple functions - base forming, rim thickening, and smooth transition - in one operation, eliminating the need for multiple separate processing steps or tool changes while maintaining uniform thick rim thickness
Solution Approach 2:
The transition annular surface provides a smooth curved transition between the first and second extrusion protrusions. This curved geometry ensures gradual material flow and pressure distribution, preventing sharp transitions that would cause surface defects or material accumulation irregularities. The smooth curvature allows the spinning wheel to maintain a relatively simple overall shape while achieving complex functional requirements
3Productivity
If conventional spinning method is used, then the processing time is reasonable, but the processing efficiency for thick rim is low
Solution Approach 1:
The first extrusion protrusion performs preliminary pressing and base forming action before the second extrusion protrusion creates the thick rim. This preliminary action prepares the material in an optimal state for subsequent rim thickening, reducing the total processing time by eliminating the need for separate base forming and rim thickening operations that would be required with conventional methods
Solution Approach 2:
The spinning wheel maintains continuous material deformation and shaping action throughout the spinning process. The transition annular surface ensures continuous material flow from the first to the second extrusion protrusion without interruption or repositioning. This continuity allows the thick rim to be formed in a single uninterrupted spinning operation, significantly improving processing efficiency compared to conventional methods that would require multiple steps
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
Enables rapid and efficient processing of thick rims on cookware, enhancing structural strength and user experience by ensuring uniform thickness and smooth surface formation.
Implementation Method 1
the first extrusion protrusion is mainly used to apply a pressure to the circular sheet base material, so that the circular sheet base material is bent and presses into the surface of the forming die; in the spinning process of the spinning wheel, the first extrusion protrusion thins the circular sheet base material, and the thickness of the circular sheet base material located outside the transition annular surface and the second extrusion protrusion is gradually accumulated and increased
Implementation Method 2
the transition annular surface and the first extrusion protrusion are in smooth transition, and the transition annular surface and the second extrusion protrusion are in smooth transition. When the pressure on the circular sheet base material from the first extrusion protrusion is transitioned to the pressure from the transition annular surface, the pressure changes more uniformly
Implementation Method 3
the arrangement of the transition annular surface is also beneficial for a metal material on the circular sheet base material to be accumulated and thickened toward the direction of the second extrusion protrusion
Data Source
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AI summary
The present invention relates to the field of cookware processing equipment, in particular to a spinning machine capable of rapidly processing a thick rim of cookware. The spinning machine includes a worktable, where a spindle and a base material pressing mechanism are rotatably connected to the worktable, the worktable is provided with a power device for driving the spindle to rotate, and a mounting table and a forming die are connected to the spindle. The spinning machine further includes a positioning plate, a mounting base is rotatably connected to the positioning plate, and a rotary driving device for driving the mounting base is arranged on the positioning plate. An X-direction driving device for adjusting a horizontal position of the positioning plate and a Z-direction driving device for adjusting the height of the positioning plate are arranged on the worktable. A spinning wheel is rotatably connected to the mounting base and includes a first extrusion protrusion, a second extrusion protrusion, and a transition annular surface. The outer diameter of the first extrusion protrusion is greater than that of the second extrusion protrusion, and the transition annular surface is sloped towards one side of the second extrusion protrusion. The spinning machine provided by the present invention solves the problem that cookware with a structure of a thick rim cannot be rapidly processed by a conventional spinning method.