Stacking Unit for Sun-Blind Lamellas with Dynamic Ladder Guides
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Solution Overview
Problem
Current stacking devices for sun-blind lamellas face challenges in efficiently stacking long and wide lamellas due to unstable supporting ladders and significant dimension tolerances, leading to unreliable guiding and increased vibration at high operation speeds.
Innovation Solution
A stacking device with a vertical tank, side- and vertically movable guides, and a stretching unit with a weight and lockable stops, along with interconnected pneumatic cylinders and scissors, ensures reliable guiding and division of transversal branches, reducing vibrations and improving handling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high operation speed is used for stacking sun-blind lamellas, then productivity is improved, but reliability deteriorates due to unstable supporting ladder and significant vibrations
Solution Approach 1:
The supporting ladder is transformed from a static structure to a dynamic adjustable one. The longitudinal branches are made movable along the vertical axis, allowing the ladder to adapt its shape and dimensions during operation. This dynamic adjustment capability enables the ladder to maintain stability at high speeds while accommodating variations in lamella dimensions, thus resolving the contradiction between productivity and reliability
Solution Approach 2:
The invention changes the physical parameters of the supporting ladder by making the longitudinal branches movable. This allows real-time adjustment of the ladder's geometric parameters (position, shape, dimensions) to match the specific lamella being stacked. By dynamically changing these parameters, the system maintains reliable guiding at high operation speeds, overcoming the limitation of fixed-geometry ladders that cause vibrations and instability
2Device complexity
If fixed geometry supporting ladder is used, then device complexity is reduced, but manufacturing precision deteriorates due to inability to adapt to lamella dimension variations
Solution Approach 1:
The longitudinal branches are equipped with movement mechanisms that allow them to slide along the vertical axis. This dynamic feature enables the ladder to adjust its geometry to match different lamella dimensions while maintaining relatively simple overall structure. The movement capability is achieved through straightforward mechanical means (guides and actuators), balancing structural simplicity with adaptive precision
Solution Approach 2:
The supporting ladder is designed to perform multiple functions: it provides structural support, guides the lamella, and adapts to various lamella dimensions. The movable longitudinal branches enable a single ladder structure to handle different product specifications, eliminating the need for multiple fixed ladders and achieving universality without significantly increasing complexity
3Stability of the object's composition
If transversal branches are strung tightly to maintain ladder shape, then stability is improved, but reliability deteriorates because lamellas cannot freely pass between branches
Solution Approach 1:
The longitudinal branches are made movable to create dynamic clearance between transversal branches. When a lamella approaches, the longitudinal branches can shift position to accommodate the lamella's passage, preventing conflicts even when transversal branches are tightly strung. This dynamic adjustment maintains both ladder stability and reliable lamella passage
Solution Approach 2:
The system performs preliminary positioning of the longitudinal branches before the lamella arrives. By anticipating the lamella's approach and pre-adjusting the branch positions, the system ensures that clearance is available when needed, while maintaining tight stringing of transversal branches for overall ladder stability during non-operational periods
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
The solution provides a reliable and efficient method for stacking long sun-blind lamellas by stabilizing the supporting ladder and minimizing vibrations, enhancing operation speed and reliability.
Implementation Method 1
the dividers of transversal branches face vertically- and side-movable guides of longitudinal branches of the ladder and vertically placed stretching unit
Implementation Method 2
the stretching unit comprises a weight placed in vertical guide and the weight carries the auxiliary leads of longitudinal branches of the ladder
Implementation Method 3
the guiding groove in side-movable guides is covered with sprung latch leaning against the increased profile of guides
Data Source
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AI summary
Stacking unit of the machine for production of sun-blind lamellas, that is re-adjustably placed on longitudinal beam (1) of the machine, comprises the vertical tank (7), on one side of which there is put at least one lifter (13) of sun-blind lamellas and on the other side the reflected dividers (22) of transversal branches (23) of the ladder (16), while the dividers (22) of transversal branches (23) face vertically- and side-movable guides (18) of longitudinal branches (19) of the ladder (16) and vertically placed stretching unit (15).