Pressing Device Height Adjustment and Pressure Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing press devices face challenges in achieving reliable and even pressure distribution on workpieces, particularly when adjusting the press tool height and ensuring uniform pressure across the surface, often requiring complex systems and external pressure sources.
Innovation Solution
The press device incorporates a height adjustment mechanism with a piston-cylinder unit and fluid-filled pressure elements made of materials like cell-like polyurethane, which allows for quick adjustment of the press tool and achieves uniform pressure distribution without external pressure sources, using mechanical elements that behave like rigid bodies during pressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If fluid-filled elements are used to achieve uniform pressure distribution, then pressure uniformity is improved, but device complexity increases due to requiring external pressure sources and fluid supply systems
Solution Approach 1:
The patent removes the complex external pressure source and fluid supply system from the pressing device, replacing them with simple mechanical pressure elements made of compressible material. This extraction eliminates the need for hoses, pumps, and control systems while maintaining uniform pressure distribution through the inherent properties of the compressible elements.
Solution Approach 2:
The pressure elements are made of compressible material that automatically distributes pressure uniformly across the workpiece surface through their own mechanical properties. The material self-regulates pressure distribution without requiring external control systems, fluid supply, or active pressure management, achieving uniformity through passive mechanical behavior.
2Speed
If height adjustment device is implemented for quick positioning, then adjustment speed is improved, but device complexity increases due to additional actuation systems
Solution Approach 1:
The patent replaces complex hydraulic or pneumatic height adjustment systems with a simple mechanical lifting device. The press tool is raised mechanically to the required height and then held in position, eliminating the need for continuous fluid pressure systems while achieving quick positioning and height adjustment capabilities.
3Use of energy by moving object
If pressure device is activated only during pressing, then energy consumption is reduced, but pressing reliability may be compromised
Solution Approach 1:
The press tool and pressure elements are pre-positioned at the required height and configuration before the pressing operation begins. The mechanical lifting device raises the tool to the correct position in advance, and the compressible pressure elements are already in place to distribute pressure uniformly. This preliminary positioning ensures that when pressing begins, all components are ready to function reliably without requiring continuous activation or adjustment during the process.
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 enables reliable, efficient, and even pressure application on workpieces, allowing for high press pressures with minimal pressure loss, and simplifies the device structure by eliminating the need for external pressure sources, ensuring a trouble-free and process-proof operation.
Implementation Method 1
The holding devices (31) are formed by piston-cylinder units, the piston rod (47) of which is suspended in the tabs (30)
Implementation Method 2
The pressure elements (36) consist of a material with a modulus of elasticity that is smaller than the modulus of elasticity of the workpiece (4) to be pressed
Implementation Method 3
The pressure elements (36) are formed from a fluid-filled bladder (36a)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The pressing device for pressing workpieces (2, 4) made of wood, plastic, metal, and the like has at least one support (1) for the workpieces (2, 4) and at least one pressing tool (3) equipped with at least one pressing element (33). To achieve reliable pressing of the workpieces in a structurally simple manner, at least one height adjustment device (31) and at least one pressure device (15, 16) are connected to the pressing tool (3), wherein the pressure device (15, 16) is moved along with the height of the pressing tool (3) by means of the height adjustment device (31). This allows the pressing tool to be quickly moved into the pressing position or from the pressing position to a starting position using the height adjustment device.