Dual Closed Loop Container Forming Machine
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Solution Overview
Problem
Existing machines for forming and filling containers face issues with container deformation or destruction due to centrifugal forces, leading to spilling and reduced throughput, and are costly to increase the number of forming stations.
Innovation Solution
A machine with a dual closed loop system, where elementary stations and main stations move along separate loops, allowing for increased active forming stations without excessive cost, using holding means to secure containers by their neck and bottom, and an anti-spilling device to prevent liquid overflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If the speed of rotation of the wheels is limited to prevent spilling, then liquid loss is reduced, but throughput decreases
Solution Approach 1:
The machine is divided into two separate closed loops: the first loop carries molds and preforms, while the second loop carries injection nozzles. This segmentation allows independent optimization of each loop's speed and function, enabling high-speed operation without compromising liquid containment
Solution Approach 2:
The patent introduces an intermediary system where the second loop (injection nozzles) couples with the first loop (molds) only in the forming area. This intermediary arrangement allows the injection system to operate at high speed while the mold transport can be optimized separately, preventing spilling through proper timing and positioning
2Loss of substance
If the number of forming stations is increased to avoid spilling, then liquid loss is reduced, but device complexity and cost increase
Solution Approach 1:
By segmenting the machine into two independent loops with specialized functions, the patent avoids the need to increase the number of forming stations. Each loop performs its specific function efficiently, reducing overall complexity while maintaining liquid containment
Solution Approach 2:
The two-loop system creates multi-functionality where the first loop handles transport and positioning, while the second loop handles injection and sealing. This universal design achieves spilling prevention through functional coordination rather than simply adding more forming stations
3Device complexity
If a single closed loop is used for forming stations, then device simplicity is maintained, but the forming area is reduced and throughput is limited
Solution Approach 1:
The patent segments the single loop into two separate closed loops, each optimized for specific functions. This segmentation increases the effective forming area and allows parallel operations, thereby increasing throughput while keeping each individual loop relatively simple
Solution Approach 2:
The invention transitions from a one-dimensional single loop to a two-dimensional dual-loop system. This dimensional change allows simultaneous operation of multiple forming stations on different loops, increasing throughput without proportionally increasing complexity
4Productivity
If centrifugal forces are applied at high speed, then throughput is increased, but container deformation and destruction occur
Solution Approach 1:
The patent applies preliminary action by having the second loop (injection nozzles) couple with the molds and complete the filling process before the containers are subjected to high-speed centrifugal forces during transport. This timing ensures containers are sealed and intact before high-speed operation
Solution Approach 2:
The patent converts the potentially harmful centrifugal forces into a benefit by using the two-loop system to ensure containers are properly sealed and positioned before exposure to these forces. The controlled coupling and decoupling mechanisms transform what would be destructive forces into acceptable operational conditions
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 machine increases throughput by reducing container deformation and spilling, while maintaining high-speed transportation and reducing the risk of liquid loss, thus enhancing operational efficiency and cost-effectiveness.
Implementation Method 1
the formed and filled containers are subjected to a centrifugal force while they are opened, which can lead to a deformation or a destruction of the containers
Data Source
AI summary
A machine for shaping from a preform and filling with liquid successive containers. The machine includes forming stations comprising a main station and an elementary station. The machine further includes a series of elementary stations moving along a first closed loop and a series of main stations moving along a second closed loop. The first closed loop and the second closed loop including at least one common part wherein the main stations are coupled with the elementary stations and a distinct part wherein the main stations are separated from the elementary stations.