Hydraulic Positioning Device with Integrated Piston Rod Locking
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Solution Overview
Problem
Existing container treatment systems face challenges in maintaining precise and stable positioning of containers relative to treatment elements, particularly in preventing springback and ensuring safety during container failures, due to the use of compressible pneumatic media which can accelerate fragments when containers burst.
Innovation Solution
A positioning device with a hydraulic fluid as the working medium, featuring a locking mechanism integrated within the piston rod, including a shut-off valve, which allows for compact and hygienic design, maintaining position independently of pressure and preventing springback, and includes a working medium channel for direct fluid supply, ensuring precise and safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a compressible pneumatic medium is used for positioning, then the positioning device can be simpler in structure, but the positioning stability deteriorates and springback occurs when containers burst
Solution Approach 1:
The patent changes the physical state of the working medium from compressible pneumatic to incompressible hydraulic fluid. This parameter change eliminates springback and ensures positioning stability even when containers burst, as the hydraulic fluid maintains constant pressure and volume under compression.
Solution Approach 2:
The patent applies hydraulic principles by using liquid hydraulic fluid instead of gaseous pneumatic medium. The hydraulic fluid's incompressibility provides stable positioning force that does not rebound when external pressure is applied, solving the reliability issue while maintaining structural simplicity.
2Volume of moving object
If the locking mechanism is integrated into the piston rod, then the device becomes more compact and hygienic, but the manufacturing complexity increases
Solution Approach 1:
The patent merges the locking mechanism with the piston rod into a single integrated component. The locking mechanism is formed as part of the piston rod structure, eliminating separate locking components and reducing overall device volume. This integration also simplifies cleaning access for hygiene requirements.
Solution Approach 2:
The locking mechanism is nested within the piston rod structure, with the locking element positioned inside the piston rod body. This nesting arrangement maximizes space utilization, makes the device more compact, and allows the locking function to be embedded without adding external complexity.
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 enables precise and stable positioning of containers, prevents springback and acceleration of fragments during container failures, and allows for a more compact and hygienic design, reducing the risk of damage and improving operational safety.
Implementation Method 1
a pressure chamber (20) is formed between the piston (3) and the positioning cylinder (2), which can be acted upon by a working medium
Implementation Method 2
By using a hydraulic fluid, for example a hydraulic oil, as the working medium, an incompressible working medium is used, whereby a relative position once assumed between the container to be treated and the treatment element can be maintained essentially independently of the pressure or the contact pressure built up between the treatment element and the container
Implementation Method 3
the locking mechanism is accommodated in the piston rod (4), with the locking device comprising a shut-off valve arranged in the piston rod (4)
Data Source
Figure 1~3
AI summary
The present invention relates to a positioning device (1) for the relative positioning of a container to be treated and a treatment member in a container treatment facility, comprising a positioning cylinder (2) and a piston (3) accommodated in the positioning cylinder (2), which piston is connected to a piston rod (4), a pressure chamber (20) being formed between the piston (3) and positioning cylinder (2), on which piston a working medium can act, and a locking mechanism (5) for locking the position of the positioning cylinder (2) relative to the piston rod (4), the locking mechanism (5) being accommodated in the piston rod (4).