Servo-Controlled Barrel Forming Machine
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Solution Overview
Problem
Existing corrugated barrels are difficult and time-consuming to manufacture, often resulting in inadequate sealing of the manufacturer's joint and barrel top, leading to product damage during transport and storage.
Innovation Solution
A machine and method for forming containers from sheet material blanks using a mandrel, lifting, and folding arm assemblies with servo mechanisms to control speed and timing, ensuring secure wrapping and sealing of the blank around the mandrel to form a corrugated barrel with angled corners and secure closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the blank is folded to form a corrugated barrel with manufacturer's joint and top closure, then the container structure is formed, but the sealing of the manufacturer's joint and barrel top becomes inadequate leading to product damage
Solution Approach 1:
The blank is pre-formed with specific fold lines and panel configurations before processing. The fold lines are pre-marked and positioned to ensure proper alignment during barrel formation, allowing the sealing surfaces to be prepared in advance for reliable sealing of the manufacturer's joint and top closure
Solution Approach 2:
Different regions of the blank are designed with specific local properties - the panels are configured with particular fold line patterns and panel thicknesses in critical sealing areas. The end panels and top flaps have specialized local structures that enhance sealing capability while the body panels maintain structural integrity
2Productivity
If the manufacturing process is simplified to reduce costs and time, then production efficiency improves, but the sealing quality of the manufacturer's joint and barrel top deteriorates
Solution Approach 1:
The blank is divided into multiple panels and flaps with specific fold lines that can be processed independently. This segmentation allows for optimized sealing at critical locations (manufacturer's joint and top) while maintaining overall manufacturing efficiency through modular assembly of the barrel components
Solution Approach 2:
The blank dimensions, panel thicknesses, and fold line angles are specifically adjusted to optimize both sealing quality and manufacturing efficiency. By changing these parameters, the design achieves reliable sealing without requiring excessive manufacturing complexity or time
3Reliability
If the blank structure is made more complex to improve sealing, then sealing quality improves, but the manufacturing time and difficulty increase
Solution Approach 1:
The critical sealing features are pre-configured in the blank design before processing. The fold lines and panel arrangements are predetermined to ensure proper sealing alignment, eliminating the need for time-consuming adjustments during the barrel formation process while maintaining reliable sealing
Solution Approach 2:
The blank is designed to be processed continuously through the forming operation without requiring interruptions for real-time adjustments. The continuous folding and sealing action maintains sealing reliability while minimizing manufacturing time through uninterrupted processing
Data Source
AI summary
A machine for forming a container from a blank of sheet material includes an outer body frame, a mandrel mounted to the body frame, a lifting assembly coupled to the body frame, and a lateral presser assembly and a folding arm assembly coupled to the lifting assembly, wherein the lifting assembly moves the lateral presser assembly and the folding arm assembly in a first direction and an opposite, second direction. A folding arm servomechanism is operatively connected to a folding arm of the folding arm assembly and rotates the folding arm relative to the mandrel to wrap a first portion of the blank around the mandrel. A lateral presser servomechanism is operatively connected to an engaging bar of the lateral presser assembly and rotates the engaging bar relative to the mandrel to wrap a second portion of the blank around the mandrel to at least partially form the container.