Beer Bottling Cam-Wheel Valve Control for Flow Sequencing and Cleaning
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Solution Overview
Problem
Existing beer bottling systems face challenges in controlling fluid and gas flow efficiently while minimizing oxygen exposure and maintaining cleanliness, especially for small-scale operations, as solenoid valves are difficult to maintain and clean.
Innovation Solution
A bottling flow control apparatus with a valve block and cam wheels that rotate in unison to selectively open and close tubing lines, using a stepper motor to control the cam wheels, allowing precise sequencing of fluid and gas flow steps, including purging, pressurizing, filling, and depressurizing, with a design that facilitates easy cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If solenoid valves are used to control fluid flow in the bottling apparatus, then automated flow control is achieved, but the device becomes difficult to maintain and clean
Solution Approach 1:
The patent removes the solenoid valves from the system entirely, extracting the problematic component that caused cleaning difficulties. Instead, it uses a cam wheel and follower mechanism that opens and closes tubing lines mechanically, eliminating the need for solenoid valves and their associated cleaning problems while maintaining automated flow control capability.
Solution Approach 2:
The patent replaces the electrical/automated solenoid valve system with a purely mechanical cam wheel system. The cam wheel's rotational movement mechanically actuates the valve followers, which in turn open and close the tubing lines. This substitution eliminates the need for electrical components that are difficult to clean while achieving the same automated control function.
2Manufacturing precision
If multiple valves are used to control different tubing lines for sequential bottling steps, then precise flow control is achieved, but the device complexity increases
Solution Approach 1:
The patent merges multiple individual valve control functions into a single integrated cam wheel assembly. One cam wheel with multiple followers controls multiple tubing lines simultaneously, coordinating the opening and closing of different valves according to the bottling sequence. This consolidation reduces the number of separate valve mechanisms while maintaining precise sequential flow control.
Solution Approach 2:
The cam wheel assembly serves multiple functions simultaneously: it controls the opening and closing of different tubing lines, coordinates the sequential bottling steps, and manages the timing of each operation. This multi-functional design reduces overall system complexity compared to having separate dedicated mechanisms for each valve control function.
3Manufacturing precision
If cam wheels rotate in unison during forward direction, then sequential bottling steps are controlled precisely, but all valves cannot be opened simultaneously for cleaning
Solution Approach 1:
The patent introduces dynamic behavior differences between cam wheels based on rotation direction. During forward rotation, all cam wheels rotate in unison to control sequential bottling steps. During reverse rotation, at least one cam wheel is designed to remain stationary while others rotate, allowing its relief to align with the valve block and open all valves simultaneously for cleaning. This dynamic differentiation resolves the contradiction between precise sequential control and cleaning accessibility.
Solution Approach 2:
The patent segments the cam wheel assembly into at least two cam wheels with different rotational behaviors during reverse direction. One cam wheel is designed to remain stationary while others rotate, creating a functional segmentation that allows selective valve opening for cleaning purposes while maintaining unified operation during forward rotation for sequential process control.
Data Source
AI summary
A bottling apparatus includes a valve block having several valves that are configured to selectively open or close a respective tubing line of several tubing lines that pass through the valve block. The valves are each individually controlled by a respective cam wheel that are all rotatable about a common axis that is in line with the valves. Each valve is at a valve position relative to the cam wheel. Each cam wheel includes a cam about its circumference that has one or more reliefs in the cam. The cams maintain their respective valves closed as they rotate, until the relief is rotated into alignment with the valve position, which allows the valve to open. The cam wheels are rotated in a forward direction during a bottling process through a sequence of rotational positions that each correspond to one step of the bottling process. To clean the valves, the cam wheels are rotated in a reverse direction, wherein one or more of the cam wheels do not rotate for one or more rotational positions, allow reliefs on all of the cam wheels to line up in the valve block to simultaneously open all of the valves.