Rigid Demolding Cylinder With External Forming Fabric
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Solution Overview
Problem
Existing molding devices face issues with fabric hole blockage due to absorbent material, especially SAP, leading to reduced efficiency and energy consumption, and electrostatic adherence causing waste of absorbent material during core formation.
Innovation Solution
A rigid demolding forming device with a forming cylinder, spreading box, suction box, and forming fabric, where the forming fabric is externally arranged, allowing for easy cleaning and preventing blockage, and a transfer roller for efficient core transfer without electrostatic adherence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible demolding forming device is used, then the device can adapt to curved surfaces and complex geometries, but the device lacks rigidity and stability for precise positioning and controlled demolding
Solution Approach 1:
The forming device is divided into multiple individual forming elements (fingers) that can move independently relative to each other. Each finger can be positioned and controlled separately, allowing the assembly to adapt to complex geometries while maintaining structural stability through the segmented architecture.
Solution Approach 2:
The forming device transitions from a static rigid structure to a dynamic system where forming elements can change their positions and configurations. The fingers are designed to move between different states (engaged/disengaged, positioned/retracted) to adapt to the workpiece geometry while maintaining stability during each operational phase.
2Stability of the object's composition
If a rigid forming device is used, then the device provides stability and precision, but the device cannot adapt to complex geometries and curved surfaces
Solution Approach 1:
The rigid structure is segmented into multiple independent fingers that can be positioned at different locations. Each segment maintains rigidity for precise positioning while the collection of segments provides adaptability to complex geometries through their distributed arrangement and independent movement capabilities.
Solution Approach 2:
The forming device changes its geometric parameters (positions, orientations, configurations of individual fingers) to adapt to different workpiece geometries. This allows the same rigid structure to be reconfigured for various complex shapes while maintaining stability during each specific forming operation.
3Manufacturing precision
If forming elements are engaged with the workpiece, then precise positioning and forming are achieved, but removing the elements requires overcoming strong engagement forces
Solution Approach 1:
The forming elements are designed to dynamically transition between engaged and disengaged states. During forming, fingers are positioned to engage precisely with the workpiece for accurate positioning. For removal, the fingers can be retracted or repositioned to disengage smoothly, reducing the force required for separation.
Solution Approach 2:
The system performs preliminary positioning and engagement of the forming elements before the main forming operation. This allows precise positioning to be achieved while the removal process is facilitated by the preliminary configuration of the fingers, which can be designed to release in a controlled manner after forming is complete.
4Area of stationary object
If multiple forming elements are used to cover large areas, then complete surface coverage is achieved, but the device complexity and number of components increase
Solution Approach 1:
Each forming element is designed as a universal component that can perform multiple functions: positioning, forming, and potential sensing. This multi-functionality reduces the need for separate specialized components, allowing large surface coverage to be achieved with a manageable number of versatile elements rather than numerous specialized parts.
Solution Approach 2:
Multiple forming elements are combined into an integrated assembly that functions as a coordinated system. The elements share common support structures, control systems, and mounting mechanisms, reducing the overall device complexity compared to having completely independent components. The merged assembly achieves large area coverage while maintaining manageable complexity through integration.
Data Source
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AI summary
A rigid demolding forming device, comprising a forming cylinder (11), a dispersing box (12), a suction box (13) and a forming fabric (14), wherein the forming cylinder (11) has a rigid structure; the dispersing box (12) is arranged in the forming cylinder (11); the forming fabric (14) is externally arranged; and an absorbent material moves from inside to outside. The forming fabric (14) and the forming cylinder (11) are arranged separately, such that the forming fabric (14) can be cleaned conveniently, thereby preventing fabric holes from being blocked. In addition, the forming fabric (14) and other devices are no longer arranged in a forming hole (114), such that when a core body (15) needs to be removed from the forming hole (114) after same is formed in the forming hole (114), product defects or the waste of absorbent materials, which are caused by an electrostatic effect or a viscous force effect of devices such as the forming fabric (14), can be avoided.