Deep Grip Mechanism for Blow Mold Using Moveable Inserts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional blow molding technologies face challenges in creating deep-grip bottles without increasing the size of the blow molding module or reducing the number of stations, as existing molds cannot accommodate moveable inserts due to space constraints.
Innovation Solution
Incorporating low-profile moveable inserts driven by mechanisms like pistons or cams within the mold hanger, which move into the mold cavity during the blowing process to form a deep pinch grip while the plastic is still molten, allowing for a deeper grip without enlarging the module's lateral space envelope.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If moveable inserts are added to deepen the grip, then the grip depth is improved, but the lateral space envelope increases
Solution Approach 1:
The moveable inserts are nested within the mold cavity, allowing them to be stored inside the mold structure when not in use. The inserts slide into position from within the mold, eliminating the need for external space and maintaining the compact lateral envelope while still enabling deep grip formation.
Solution Approach 2:
Instead of adding space in the lateral dimension to accommodate moveable inserts, the solution uses the vertical dimension by having inserts slide upward or downward within the mold cavity. This dimensional transition allows grip deepening without increasing the lateral space envelope of the blow molding module.
2Shape
If the module size is increased to accommodate deep grip molding, then the grip depth is improved, but the production efficiency deteriorates
Solution Approach 1:
The mold includes moveable inserts that can dynamically change position during the blow molding process. The inserts are initially in a first position allowing standard bottle formation, then move to a second position to create the deep grip feature. This dynamic adaptability enables deep grip molding without requiring a larger module or sacrificing production efficiency.
3Area of stationary object
If fewer stations are used to maintain module size, then the module configuration is preserved, but the production rate deteriorates
Solution Approach 1:
The moveable inserts serve multiple functions: they enable deep grip formation, maintain compatibility with existing module configurations, and preserve the original number of stations. By making the mold itself adaptable through moveable components, the system achieves enhanced functionality without compromising the existing productive module architecture.
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 approach enables the production of bottles with deeper ledges and a secure grip without increasing the module's size, maintaining production efficiency and allowing for the use of existing blow molding stations, resulting in a stable and energy-efficient design.
Implementation Method 1
a piston configured to be pushed by the bottom of the cavity into the mold to push the moveable insert into the mold
Data Source
AI summary
Disclosed is a mold for forming a deep grip container, the mold having drive mechanisms opposably to drive moveable inserts into the mold. The drive mechanisms may be located entirely within the mold and may include a slotted cam. Also disclosed is a method of manufacturing a blow molded bottle with a deep pinch grip comprising: providing a mold hanger having an outer envelope and providing within the outer envelope a drive mechanism to drive moveable inserts into the mold after blowing molten plastic into contact with the mold. Further disclosed is a blow molded bottle with a deep pinch grip manufactured according to the disclosed methods.