SMC Dispersion Roller Side Covers for Fiber Dust Containment
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Solution Overview
Problem
Existing SMC manufacturing technologies face issues with contamination of the manufacturing line, mechanical element cleanliness, control equipment failure, and environmental deterioration due to the dispersion of short fiber bundles on a carrier film.
Innovation Solution
A dispersion roller device with a configuration that includes a rotationally driven dispersion roll, two bearings, and side covers disposed between the bearings, where the roll body has pins or rods on its surface, and the side covers face the inner surfaces of circular openings in the covers, minimizing fiber dust leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a dispersion roller device is used to disperse short fiber bundles on a carrier film, then the fiber mat can be formed effectively, but fiber dust leaks and contaminates the manufacturing line
Solution Approach 1:
The patent employs side covers with circular openings that form a enclosed structure around the dispersion roll. This shell-like configuration contains the fiber dust within the dispersion roller device, preventing it from leaking into the manufacturing environment while still allowing the dispersion function to operate effectively.
Solution Approach 2:
The side covers act as intermediary elements between the dispersion roll and the external environment. These covers intercept and contain the fiber dust generated during dispersion, serving as a barrier that prevents contamination while allowing the necessary mechanical action to proceed.
2Device complexity
If the dispersion roll is exposed to the environment, then the device structure is simple, but mechanical elements become contaminated and control equipment may fail
Solution Approach 1:
The side covers create a protective enclosure around the dispersion roll and mechanical elements. This shell structure isolates the mechanical components from fiber dust contamination, maintaining their cleanliness and operational reliability without significantly increasing overall device complexity.
Solution Approach 2:
The dispersion roller device is segmented into distinct components: the dispersion roll, the side covers with circular openings, and the bearing support structure. This segmentation allows the side covers to be positioned specifically to protect mechanical elements while maintaining accessibility for maintenance and operation.
3Productivity
If fiber dust is generated during dispersion, then the fiber mat can be formed, but the working environment deteriorates
Solution Approach 1:
The side covers with circular openings form an enclosed structure that contains fiber dust within the dispersion roller device during the fiber mat formation process. This prevents fiber dust from dispersing into the working environment, maintaining air quality while allowing productive operation.
Solution Approach 2:
The patent converts the potentially harmful fiber dust by containing it within the dispersion roller device structure. The fiber dust that would otherwise contaminate the environment is instead contained and managed within the enclosed structure, transforming a harmful byproduct into a controlled element of the manufacturing process.
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
Prevents contamination, maintains mechanical element cleanliness, and prevents control equipment failure, thereby improving the working environment by reducing fiber dust exposure.
Implementation Method 1
a rotationally driven dispersion roll... dispersing the short fiber bundles using a dispersion roller device having a rotationally driven dispersion roll
Data Source
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AI summary
The purpose of the present invention is to achieve at least one of the following: preventing contamination of SMC manufacturing line, maintaining the cleanliness of mechanical elements included in SMC manufacturing apparatus, preventing failure of control equipment installed in or around SMC manufacturing apparatus, and preventing deterioration of working environment. The method of manufacturing a sheet molding compound, comprises (i) allowing short fiber bundles to fall onto a travelling carrier film, while dispersing the short fiber bundles using a dispersion roller device, thereby depositing a fiber mat on the carrier film, and (ii) impregnating the fiber mat with a thermosetting resin composition, wherein the dispersion roller device has a rotationally driven dispersion roll, bearings, a first side cover, and a second side cover, wherein the dispersion roll comprises a roll body and roll body-adjoining parts, and an inner circumferential surface of a circular opening provided in each of the first and second side covers and a cylindrical circumferential surface of each of the roll body-adjoining parts face each other.