Radial Stopper Bracket for Resin Granulator Cutter Alignment
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Solution Overview
Problem
Conventional resin granulating apparatuses face challenges with installation space constraints and the difficulty in maintaining precise cutter attachment to the die surface, leading to potential cutter bending and reduced pellet quality due to elongated cutter shafts and the need for additional stopper mechanisms, which complicates installation and maintenance.
Innovation Solution
A resin granulating apparatus with a stopper mechanism positioned radially outer to the sleeve, allowing for compact installation and precise adjustment of the cutter's position relative to the die without elongating the cutter shaft, utilizing a bracket and screw mechanism for easy integration into existing facilities with limited space, and incorporating a sensor for monitoring pressing force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the cutter shaft is elongated on the side of the die relative to the sleeve to accommodate stopper means, then the stopper mechanism can be installed to regulate cutter position, but the installation space requirement increases and the cutter shaft becomes prone to bending
Solution Approach 1:
The stopper means is relocated from the axial direction (on the cutter shaft) to the radial direction (on the bracket extending radially from the sleeve). This dimensional change allows the stopper mechanism to be positioned without elongating the cutter shaft, thereby maintaining cutter attachment precision while avoiding the bending issues associated with extended shafts.
2Adaptability or versatility
If the cutter shaft is elongated to install stopper means, then position regulation is possible, but the installation space in axial direction increases
Solution Approach 1:
The stopper mechanism is repositioned from the axial dimension to the radial dimension by mounting it on a bracket that extends radially from the sleeve. This allows position regulation functionality to be maintained while significantly reducing the axial installation space required.
3Manufacturing precision
If excessive pressing force is applied to bring the cutter into close contact with the die surface, then cutting precision is improved, but cutter abrasion accelerates and lifespan shortens
Solution Approach 1:
A sensor is incorporated to detect the pressing force between the cutter and die surface, providing feedback to a control system. This enables automatic adjustment of the pressing force to maintain optimal cutting precision while preventing excessive force that would accelerate cutter wear and extend cutter lifespan.
4Ease of operation
If the cutter shaft is bent due to elongation, then installation may be simplified, but the cutter direction becomes inclined and contact with die surface is compromised
Solution Approach 1:
By moving the stopper mechanism to the radial direction on a bracket rather than elongating the axial cutter shaft, the structural integrity of the cutter shaft is maintained, preventing bending and ensuring the cutter remains properly aligned for precise contact with the die surface.
Data Source
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AI summary
In a resin granulating apparatus of the present invention, a bracket extending in the outward radial direction over an outer peripheral surface of a sleeve is provided for the sleeve for rotatably supporting a cutter shaft of a cutter for shearing a material extruded from a die. Stopper means cooperating with the bracket to regulate movement of the sleeve toward the die and moving a regulation position in the axial direction is provided on the radially outer side over an outer diameter of the sleeve. With such a configuration, installation space is compactified so as to additionally provide the stopper means in the existing facilities, and a position of the cutter relative to a die surface is precisely adjusted so as to stably produce a pellet of a best shape.