Electric Twisting Head Actuation for Simpler Wire Binding
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Solution Overview
Problem
Existing wire binding machines require hydraulic or pneumatic actuators for gripping members, which complicates the construction and increases the need for rotary fluid seals, making the interface between the twisting head and housing cumbersome.
Innovation Solution
A wire binding machine with a twisting head that uses electric motors to control the movement of gripping members, eliminating the need for hydraulic or pneumatic actuators and simplifying the interface by using a motion transferring mechanism to rotate the twisting head and move gripping members between releasing and gripping positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydraulic or pneumatic actuators are used to move gripping members, then the gripping members can be actuated reliably, but the device complexity increases and rotary fluid seals are required
Solution Approach 1:
The patent replaces hydraulic or pneumatic actuator systems with a purely mechanical linkage system. The gripping members are moved through mechanical connections between the twisting head and housing, eliminating the need for fluid-powered actuators and rotary fluid seals while maintaining reliable actuation through mechanical force transmission.
Solution Approach 2:
The patent extracts and removes the hydraulic or pneumatic actuator components from the system. By taking out these complex actuator systems, the design achieves simpler construction without compromising the ability to move gripping members, as the mechanical linkage system provides sufficient actuation capability.
2Ease of operation
If hydraulic or pneumatic actuators are mounted in the twisting head, then gripping member movement is achieved, but the interface between twisting head and housing becomes cumbersome
Solution Approach 1:
The patent replaces fluid-powered actuation systems with a mechanical linkage system that provides gripping member positioning through mechanical connections. This substitution simplifies the interface between the twisting head and housing by eliminating the need for fluid seals and complex mounting arrangements required for hydraulic or pneumatic actuators.
3Adaptability or versatility
If each gripping member has its own actuator, then individual control is achieved, but the number of components increases
Solution Approach 1:
The patent merges the actuation functions for multiple gripping members into a single integrated mechanical linkage system. Instead of having separate actuators for each gripping member, the system uses one actuation mechanism that controls multiple gripping members through mechanical connections, reducing the total number of components while maintaining individual control capability.
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
This design reduces the complexity and cost of the machine by eliminating the need for hydraulic or pneumatic actuators, allowing for a more efficient and cost-effective construction without rotary fluid seals.
Implementation Method 1
a first electric motor for rotating the twisting head in relation to the housing
Implementation Method 2
a second electric motor for rotating the second drive member in relation to the twisting head
Implementation Method 3
moveable from a retracted wire releasing position to an advanced wire gripping position against the action of a spring force from a respective spring member
Data Source
AI summary
A wire binding machine with a twisting head (22), which is rotatable to bind portions of a wire (2) together by twisting and which comprises two wire gripping members (27a, 27b). A first drive member (41) is non-rotatably fixed to the twisting head and rotatable by a first electric motor (24) in order to rotate the twisting head. A second drive member (42) is rotatable in relation to the twisting head by a second electric motor (44) from a rotary starting position to a rotary end position. A motion transferring mechanism (50, 51a, 51b) is configured to transfer a rotary movement of the second drive member (42) in relation to the twisting head (22) from the rotary starting position to the rotary end position 10 into sequential movements of the gripping members (27a, 27b) from a wire releasing position to a wire gripping position.