Pivoting Pelletizer Support Structure for Heavy-Load Maintenance Access
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Solution Overview
Problem
Existing pelletizing apparatuses with a single suspension base are limited to smaller and lighter pelletizers, requiring massive dimensions and unable to support heavy pelletizers, and maintenance of multiple components is complex and inefficient.
Innovation Solution
A pelletizing apparatus with a pivotable portion having a horizontal support arm and rollers at its underside, allowing easy pivoting and translational movement of the pelletizer and cutting chamber, supported by a runner rail system, enabling support for heavy pelletizers and minimizing maintenance complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single suspension base with pivotal arm is used, then the structure is simple, but the moment loads become too high for heavy pelletizers
Solution Approach 1:
The suspension structure is divided into multiple independent suspension bases (at least two) instead of using a single base. Each suspension base independently supports the pelletizer, distributing the moment loads and allowing the use of lighter, simpler support elements while maintaining the ability to handle heavy pelletizers.
2Area of stationary object
If a single suspension base is used, then the structure is compact, but accessibility for maintenance of other components is restricted
Solution Approach 1:
The pelletizer is mounted on a movable carrier that can be positioned along the suspension bases and rotated relative to them. This dynamic positioning system allows the pelletizer to be moved into various locations for maintenance access to different components (cutting chamber, extruder, etc.) while the suspension bases remain stationary, maintaining a compact footprint.
3Weight of moving object
If heavy pelletizers are suspended, then the system can handle larger capacities, but the pivotal arm requires massive dimensions
Solution Approach 1:
The suspension function is segmented across multiple independent bases rather than concentrated in a single pivotal arm. This distribution eliminates the need for massive arm dimensions, as each base only needs to support a portion of the total load, allowing the use of lighter, more compact support elements.
4Stability of the object's composition
If the pelletizer is fixed in position, then the structure is stable, but maintenance operations become difficult
Solution Approach 1:
The pelletizer is mounted on a movable carrier system that allows it to be repositioned along the suspension bases and rotated to different orientations. This dynamic positioning capability maintains structural stability during operation while enabling easy access to all components for maintenance purposes, as the pelletizer can be moved away from or towards the cutting chamber as needed.
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 efficient maintenance and operation of heavy pelletizers with reduced material consumption and footprint, allowing easy access to all components for cleaning and maintenance, and minimizing unproductive setup times.
Implementation Method 1
The support has rollers at its underside. The provision of such rollers has proven to be advantageous to permit easy pivotablility of the pivotable portion about the axis of rotation.
Data Source
AI summary
A pelletizing apparatus for the production of pellets from a melt flow comprising a pelletizer (12, 112), a cutting chamber (14, 114, 172), and a suspension structure (4, 104) for suspension of the pelletizer (12, 112) and/or the cutting chamber, wherein the suspension structure (4, 104) has a stationary portion (8, 108) and a portion (6, 106) connected rotatably about an axis of rotation (18, 118) to the stationary portion (8, 108) by means of a joint (16, 116).According to the invention it is proposed that the pivotable portion (6, 106) has a substantially horizontal support arm (20, 120) which extends from the axis of rotation (18, 118) and has a distal end (22, 122), wherein in the region of the distal end (22, 122) the pivotable portion (6, 106) has a support (10, 110) adapted to support the pivotable portion (6, 106) in a vertical direction (24, 124).