Strand Pelletizer Direct Actuator Support for Compact, Noise-Insulated Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional strand pelletizers have bulky cover hoods that require significant installation space, are difficult to handle, and create resonance chambers detrimental to noise insulation, while also complicating maintenance access to the cutting mechanism.
Innovation Solution
A feed device with feed rollers that have a movable suspension linked directly to the cutting mechanism support via adjustment actuators, eliminating the need for a bulky cover hood and allowing easy maintenance access by disengaging the actuators with a releasable clutch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bulky cover hood is used to support the adjustment actuator, then the adjustment actuator can be properly supported, but the installation space increases and noise insulation deteriorates
Solution Approach 1:
The adjustment actuator is extracted from the cover hood support structure and relocated to be directly supported by the cutting mechanism support. This removes the need for the cover hood to be bulky, thereby reducing installation space while maintaining support stability.
Solution Approach 2:
The cutting mechanism support acts as an intermediary structure that directly supports the adjustment actuator. This intermediary support eliminates the need for the cover hood to bear the actuator's weight, allowing for a more compact design with improved noise insulation.
2Reliability
If a bulky cover hood is used, then the adjustment actuator can be supported, but handling difficulty increases
Solution Approach 1:
The adjustment actuator is extracted from the cover hood support structure and directly connected to the cutting mechanism support. This reduces the cover hood to a lighter, more manageable component that is easier to install, maintain, and handle.
3Reliability
If the adjustment actuator is linked to the cover hood, then the actuator can be supported, but maintenance access to the cutting mechanism becomes difficult
Solution Approach 1:
The adjustment actuator is extracted from the cover hood support system and directly connected to the cutting mechanism support. This separation allows the cover hood to be removed or opened independently for easy maintenance access to the cutting mechanism, while the actuator remains properly supported.
Solution Approach 2:
The support function is segmented from the cover hood and assigned to the cutting mechanism support. This functional segmentation allows the cover hood to be designed for easy maintenance access while the actuator is independently supported.
4Reliability
If a bulky cover hood is used, then the adjustment actuator can be supported, but noise insulation deteriorates due to resonance chamber formation
Solution Approach 1:
The adjustment actuator is extracted from the cover hood support structure and directly connected to the cutting mechanism support. This eliminates the need for a bulky cover hood, thereby preventing resonance chamber formation and improving noise insulation while maintaining actuator support stability.
Data Source
AI summary
A feed device and a strand pelletizer including the feed device and a cutting mechanism having a rotationally drivable cutting rotor and a counter-knife cooperating therewith. The feed device has a pair of feed rollers rotatable in opposite directions in order to feed strands to the cutting mechanism. At least one of the feed rollers is mounted transversely to a longitudinal axis of the mounted feed roller in a movable manner by a movable roller suspension. An adjustment actuator linked to the movable roller suspension can be used to adjust a gap between, and/or the contact force between, the feed rollers. The adjustment actuator has an articulation point on the movable roller suspension and an articulation point on a cutting mechanism support on which the cutting rotor is mounted, so that the movable roller suspension and the cutting mechanism support are directly connected by the adjustment actuator.