Rotary Press Control Cam Element Radial Extraction
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Solution Overview
Problem
In rotary presses, replacing control cam elements requires dismounting machine shell parts and compression punches, leading to significant production interruptions due to the need to remove and reassemble multiple components, including the die bore and filling device, which is time-consuming and inefficient.
Innovation Solution
The control cam elements are designed to be detachably fastened on the cam carrier and can be moved radially away from the compression punch heads, allowing them to be removed parallel to the rotor axis without taking out the compression punches, enabling separate removal of divided control cam parts for rapid exchange without interrupting production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If control cam elements are replaced by removing machine shell parts and compression punches, then the control cam elements can be exchanged, but production time is significantly interrupted
Solution Approach 1:
The control cam element is divided into multiple detachable control cam parts that can be separately removed from the cam carrier. This segmentation allows the control cam elements to be replaced without removing the compression punches or machine shell parts, enabling quick exchange while minimizing production interruptions.
Solution Approach 2:
The control cam parts are designed to be extractable from the cam carrier through radial movement, allowing them to be removed independently from the compression punches. This extraction capability enables the control cam elements to be replaced without interrupting the main compression process or requiring removal of other components.
2Loss of time
If control cam elements are detachably fastened on cam carrier, then replacement time is reduced, but device complexity increases
Solution Approach 1:
The control cam element is segmented into multiple detachable parts that can be independently removed from the cam carrier. This segmentation enables quick replacement without requiring complex disassembly procedures, balancing reduced standstill time with manageable structural complexity.
Solution Approach 2:
The control cam parts are designed with dynamic mounting features that allow them to be easily attached and detached from the cam carrier through radial movement. This dynamic design enables rapid replacement while maintaining a relatively simple overall structure that does not require complex mechanisms.
Data Source
AI summary
A rotary press with a stand, a rotor rotatably mounted around a vertical axis in the stand and being driven, which has an upper and a lower compression punch accommodation for upper and lower punches which co-operate with bores of a die plate of the rotor, and upper and lower control cam elements which can be detachably fastened on a cam carrier of the stand and which guide heads of the compression punches by means of control cams during the rotation of the rotor, characterized in that at least one control cam element, guiding the compression punch heads radially outside or radially inside, can be detachably fastened on the carrier and can be moved radially away from the punch heads when the fastening means is detached, so far that by-passing the punch heads, it can be taken out parallel to the axis of the rotor, towards the upside or towards the bottom side, respectively.