Tyre Mounting Machine With Independent Tool Positioning
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Solution Overview
Problem
Existing tire mounting and demounting machines are cumbersome, costly, and lack the ability to use multiple tools simultaneously, leading to inefficient and laborious operations due to their complex structure and limited tool positioning flexibility.
Innovation Solution
A machine with a column and wheel-holder unit that allows for independent movement of tool holder carriages and arms, enabling simultaneous operation of multiple tools, such as a demounting tool, mounting tool, and bead seater, with pneumatic or hydraulic actuators for precise control and efficient tire handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple tools are mounted on a rotatable arm that rotates to confront the wheel, then the overall dimensions of the machine are reduced, but the tools cannot operate independently of each other and their positions cannot be precisely adjusted
Solution Approach 1:
The operating unit is divided into multiple independent tool holders (first tool holder, second tool holder, third tool holder) that can move independently along the column. Each tool holder can be positioned separately to allow independent operation of tools such as the bead breaker disc, demounting tool, and mounting tool, eliminating the constraint of rotating them together as a single unit.
Solution Approach 2:
Instead of rotating tools horizontally around the wheel, the invention positions tools vertically along the column dimension. The tool holders can move up and down the vertical column independently, allowing precise positioning of each tool at different heights to confront the wheel at appropriate positions without interfering with each other's operation.
2Device complexity
If tools are mounted on auxiliary bars extending from a rotatable arm, then the structure is compact, but it becomes impossible for multiple tools to act in conjunction simultaneously
Solution Approach 1:
The operating unit is segmented into multiple independent tool holders that can operate simultaneously. The first tool holder carries the bead breaker disc, the second carries the demounting tool, and the third carries the mounting tool. These segmented holders can move independently along the column, enabling simultaneous or sequential operation of multiple tools without the constraint of a single rotating arm.
Solution Approach 2:
The column serves as a universal support structure for multiple tool holders, each capable of performing different functions. The tool holders can be selectively positioned and activated based on the specific operation required (bead breaking, demounting, or mounting), allowing the system to perform multiple functions simultaneously or in sequence using the same vertical space.
3Device complexity
If a single rotatable arm is used to present different tools to the wheel, then the machine structure is simplified, but the operator's visibility is reduced and work becomes onerous
Solution Approach 1:
The operating unit is segmented into multiple independently movable tool holders positioned at different locations along the column. This segmentation allows the tools to be positioned optimally for each operation type, improving operator visibility and accessibility without requiring a complex rotating arm mechanism. Each tool holder can be independently adjusted to provide the best working position.
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 provides a precise, reliable, and efficient method for mounting and demounting tires, allowing for faster and easier operations with improved tool positioning and reduced operator fatigue, making it versatile and suitable for various wheel sizes.
Implementation Method 1
the heat generated during normal use of the tyre causes the rubber the tyre is made of to adhere to the rim as a result of what is known as vulcanization
Implementation Method 2
by setting the wheel in rotation, the demounting tool forces the tyre out of the rim
Implementation Method 3
the sidewall pressing tool acts in conjunction with the mounting tool to press down on the sidewall so as to force it into the rim
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A machine (M) for mounting and demounting a tyre (P) relative to a corresponding rim (C) of a vehicle wheel (R) comprises a column (100) including a slideway (101) to which there is slidably coupled a tool holder carriage (300) that includes a first arm (401) with a demounting tool and a mounting tool (402, 403) connected to it. The first arm (401) runs along a first, horizontal sliding axis (X1). The tool holder carriage (300) also comprises a second arm, provided with a bead seater tool (502) and slidable along a second, horizontal sliding axis (X2) that is spaced from the first sliding axis (X1), and a third arm (601) with a bead breaker disc (602) connected to it.