Actuating Element Overheating in Print Finishing Devices
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Solution Overview
Problem
Existing post-print processing devices, such as folders, face overheating issues with electric lifting magnets used for both transferring and holding actuating elements, which can lead to damage.
Innovation Solution
Electric lifting magnets are used exclusively for transferring actuating elements between positions, while separate switchable holding elements, such as permanent magnets or spring-elastic restoring elements, are employed to fix the actuating elements in place, preventing overheating by eliminating the need for continuous energization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If electric lifting magnets are used for both transferring and holding actuating elements, then the device structure is simplified, but the electric lifting magnets overheat and may be damaged
Solution Approach 1:
The patent divides the function of the actuating element into two separate components: an electric lifting magnet for transferring the element between positions, and a separate holding element for maintaining the element in the desired position. This segmentation allows each component to perform its specific function optimally without the electric lifting magnet overheating from continuous energization.
Solution Approach 2:
The patent extracts the holding function from the electric lifting magnet and assigns it to a separate holding element. This extraction eliminates the harmful effect of continuous energization of the electric lifting magnet while preserving its useful function of transferring the actuating element between positions.
2Stability of the object's composition
If electric lifting magnets continuously energize to hold actuating elements, then the holding position is stable, but energy consumption increases and overheating occurs
Solution Approach 1:
The electric lifting magnet operates periodically only during the transfer of the actuating element between positions, rather than continuously energizing to hold the position. The holding element maintains stability during the holding phase without requiring continuous energy input from the electric lifting magnet, thus reducing overall energy consumption and preventing overheating.
Solution Approach 2:
The holding element is designed to maintain the actuating element in the desired position without requiring continuous energy input from the electric lifting magnet. The holding element essentially serves itself by maintaining the position passively or through minimal energy input, eliminating the need for continuous energization of the electric lifting magnet.
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
This solution effectively prevents overheating of electric lifting magnets, ensuring reliable operation and extending their lifespan by isolating their use to transfer operations only.
Implementation Method 1
adjusting elements (14) are installed which can be transferred from a first position into a second position and vice versa from the second position into the first position with the aid of at least one electric lifting magnet (15, 16)
Implementation Method 2
an opposite transfer of the actuating element (14) either from the second position into the first position or from the first position into the second position takes place with the aid of a spring-elastic restoring element
Data Source
Figure 1
AI summary
Device for print finishing, in particular folding device, with an actuating element (14), wherein the actuating element (14) can be moved from a first position to a second position and/or from the second position to the first position by means of at least one electro-lifting magnet (15, 16) in a temporally controllable sequence, and wherein the actuating element (14) can be fixed in the first position and/or in the second position by means of at least one separate holding element (17, 18).