Open-End Spinning Machine Housing Material Split
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Solution Overview
Problem
Existing open-end spinning devices are complex and expensive to manufacture due to their structural design, which includes numerous components made of light metal alloys, leading to high production costs and potential environmental sensitivity.
Innovation Solution
The design separates the housing of the sliver opening device and the bearing device into components made of different materials, with the sliver opening device made of a light metal alloy and the bearing device made of plastic, allowing for easier and more cost-effective production while ensuring durability and resistance to environmental influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all components are made of light metal alloys, then wear resistance and durability are improved, but manufacturing complexity and production costs increase
Solution Approach 1:
The patent applies different materials to different components based on their specific functional requirements. The bearing device housing uses plastic for non-wear areas, while the sliver opening device uses light metal alloy for components requiring wear resistance. This local differentiation of material properties resolves the contradiction by providing wear resistance only where necessary, reducing overall manufacturing complexity and cost.
2Duration of action of stationary object
If all components are made of light metal alloys, then durability is improved, but production costs increase
Solution Approach 1:
The patent changes the material parameter (from light metal alloy to plastic) for the bearing device housing based on the functional requirements of that specific component. Since the bearing device housing does not require the same wear resistance as the sliver opening device, using plastic reduces production costs while maintaining sufficient durability for its intended function.
3Object-affected harmful factors
If components are made of light metal alloys, then resistance to environmental influences is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The patent applies material selection locally based on environmental exposure requirements. The sliver opening device, which is more exposed to environmental influences during operation, uses light metal alloy for better resistance. The bearing device housing, which is more protected, uses plastic, reducing manufacturing cost while maintaining adequate environmental resistance for its location.
Data Source
AI summary
The invention relates to an open-end spinning machine (1) having a spinning rotor. A rotor shaft (4) of the spinning rotor is supported in a rotor shaft support member (9) and can be driven by a rotary tangential belt (7) along the machine length. A spinning rotor body of the spinning rotor can be loaded in a rotor housing (6) of negative pressure to rotate at a high rotational speed during spinning. The rotor housing (6) can be covered by a cover member (8). The cover element (8) is a part of a housing (11) of a fibrous band opening mechanism (12). The fiber band opening mechanism (12) has a support mechanism (2). According to the invention, the housing (11) of the fiber band opening mechanism (12) and a housing (14) of the support mechanism (2) are two separate parts made of different materials, wherein the housing (11), associated with spinning, of the fiber band opening mechanism (12) is made of light metal alloy, and the housing (14) of the support mechanism (2) is made of plastic material.