Mold Core Holder Strip Connection for Vibration Stress
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing mold designs for producing large-volume concrete blocks, such as hollow blocks and embankment stones, face issues with core holder bars breaking due to high alternating stresses during the vibration process, leading to damage and instability in the mold cavities.
Innovation Solution
A form-fitting connection system using a holding element, such as a pin or bolt, that penetrates through a parting surface and engages with core holder strips and fastening bodies, allowing for reliable mounting on the side walls and mold cores, with the ability to rotate relative to the fastening bodies to accommodate vertical deflection and distribute forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If core holder strips are rigidly fixed to side walls and mold cores, then positioning stability is improved, but the risk of breakage increases due to high alternating stresses during vibration
Solution Approach 1:
The connection system allows for controlled movement and rotation of the core holder strip relative to the side walls and mold cores during vibration. The holding element can rotate within its recess, and the core holder strip can deflect vertically, transforming rigid fixed connections into dynamic adaptive connections that accommodate vibrational stresses without breaking.
Solution Approach 2:
The connection system changes the mechanical parameters of the core holder strip from a rigid fixed state to a flexible movable state. By allowing rotation of the holding element and vertical deflection of the core holder strip, the system accommodates stress changes during vibration while maintaining positioning stability.
2Reliability
If core holder strips are made detachable to prevent breakage, then reliability is improved, but connection stability may deteriorate
Solution Approach 1:
The detachable connection system maintains stability through controlled movement. The holding element can rotate within its recess and the core holder strip can deflect vertically, allowing the connection to adapt to vibrational forces while maintaining secure attachment. This dynamic behavior prevents breakage without compromising connection stability.
Solution Approach 2:
The connection system is divided into separate components: the core holder strip, the holding element, and the recess in the side wall/mold core. This segmentation allows each component to move independently in a controlled manner, maintaining connection stability while preventing breakage through relative movement.
3Shape
If holding elements are positioned centrally on the core holder bar axis, then structural symmetry is improved, but the ability to accommodate vertical deflection is reduced
Solution Approach 1:
The holding element is designed to rotate within its recess, allowing it to accommodate vertical deflection of the core holder strip. This rotational capability enables the centrally positioned holding element to maintain structural symmetry while adapting to dynamic movements during vibration, resolving the contradiction between symmetry and adaptability.
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 stable and reliable connection between core holder strips and mold cores, reducing the likelihood of breakage and ensuring dimensional stability of the concrete blocks by distributing forces effectively and allowing for defined transmission of vibrations.
Implementation Method 1
the core holder strip and/or fastening body advantageously being rotated relative to the pin around the pin axis by at least one are slightly rotatable
Implementation Method 2
placed on a base which can be excited to vertical vibrating vibrations... solidified during a vibration process
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
For a mold (FO) for producing concrete blocks, having at least one mold core (FK) held on a core support strip (KHL), an advantageous connection of the core holder strip (KHL) to a sidewall (QWA; QWI) bounding the mold cavities (FN) of the mold, and/or to the mold core is described.