Sheet Forming Device Pressing Mechanism Pressure Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional sheet forming devices face issues with irregular sheet thickness and shape due to pressure variations in the storing unit, leading to material slippage and clogging, which complicates operation and maintenance, and requires frequent device shutdowns.
Innovation Solution
A sheet forming device with a pressing mechanism that applies a preset pressure to the material in the storing unit, using a pressing member with a face area of 30-95% of the upper opening, to stabilize material feeding and absorb pressure differences, allowing for easy inspection and cleaning, and automatic adjustment to prevent device damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a closed bank type storing unit is used to control material pressure, then manufacturing precision of sheet thickness is improved, but device complexity increases and ease of operation deteriorates due to disassembly requirements for inspection and cleaning
Solution Approach 1:
The storing unit is divided into a storing chamber and a pressing chamber separated by a movable pressing member. This segmentation allows the pressing mechanism to be isolated and removed independently for inspection and cleaning, while the storing chamber remains accessible, thus resolving the contradiction between maintaining pressure control precision and ease of maintenance.
Solution Approach 2:
The pressing member is designed to be movable rather than fixed, allowing it to be displaced to create access pathways for inspection and cleaning operations. This dynamic configuration enables the system to switch between operational state (pressing member in position) and maintenance state (pressing member removed), resolving the accessibility issue without sacrificing pressure control capability.
2Manufacturing precision
If the pressing face area is large (close to upper opening area), then manufacturing precision of sheet thickness is improved through better pressure distribution, but device complexity and difficulty of detecting and measuring increase
Solution Approach 1:
The pressing face area ratio is optimized within the range of 30-95% of the upper opening area, balancing pressure distribution effectiveness with mechanical simplicity. This parameter optimization ensures sufficient pressure uniformity for quality sheet production while avoiding the complexity associated with overly large pressing surfaces that would require more complex support structures.
3Productivity
If material is stored for extended periods in the storing unit, then productivity is improved by allowing continuous operation, but reliability deteriorates due to material hardening and clogging
Solution Approach 1:
The pressing member continuously applies pressure to the stored material to maintain its plasticity and prevent hardening during storage periods. This preliminary action of continuous pressing ensures that material remains in a workable state even during extended storage, preventing clogging and maintaining reliable material flow for continuous production operations.
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 ensures high-quality sheets with consistent thickness and shape, reduces material slippage and clogging, and enables quick resolution of operational issues without extensive device shutdowns, maintaining device integrity and efficiency.
Implementation Method 1
a pressing mechanism for pressing the material stored in the storing unit from the upper side with a preset pressure
Data Source
Figure 1
Figure 2
Figure 3
AI summary
In a sheet forming device having a supplying unit (1) for extruding an amount of plastically deformable material (W), a storing unit (3) for temporally storing the material (W) extruded from the supplying unit (1), and a rolling unit (2) for rolling the material (W) stored in the storing unit (3) into a sheet form, the device comprises a pressing mechanism (4) for pressing the material (W) stored in the storing unit (3) from the upper side thereof with a preset pressure, wherein a pressing member (41) constituting the pressing mechanism (4) has a pressing face (41a) whose area is set to from 30 to 95% of the area of an upper opening portion (31) of the storing unit (3).