Wire Binding Retainer Unit with Automatic Inclination Trigger
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Solution Overview
Problem
Wire binding machines using electric motors experience jerks due to repeated stalls and accelerations when tightening metal wire around objects, potentially breaking the wire, and existing solutions do not effectively reduce wire sliding against objects during tightening.
Innovation Solution
A retainer unit with a pivotable wire retaining member and a blocking mechanism that automatically releases the wire consecutively during tightening, allowing the wire to come into contact with objects without repeated motor stalls and accelerations, using an electric motor safely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an electric motor is used to pull the wire with repeated stalls and accelerations to release retainer units consecutively, then the wire can be tightened around objects, but the motor causes powerful jerks that may break the wire
Solution Approach 1:
The wire retaining member is preliminarily positioned in the wire retaining position by a spring, ready to release the wire at the precise moment when the wire reaches the correct inclination angle. This preliminary positioning eliminates the need for repeated motor stalls and accelerations, thereby preventing jerks while maintaining tightening efficiency
Solution Approach 2:
The wire itself triggers the release mechanism through its own inclination angle. When the wire reaches the predetermined angle, it automatically moves the maneuvering member which then releases the blocking mechanism, allowing the wire retaining member to pivot and release the wire without external control signals or complex electronic systems
2Object-affected harmful factors
If retainer units are used to reduce wire sliding against objects, then surface damages are prevented, but the mechanism becomes more complex requiring electronic control units
Solution Approach 1:
The retainer unit automatically detects and responds to the wire's inclination angle through the maneuvering member mechanism. The wire's own geometry and movement trigger the release sequence without requiring external sensors, controllers, or electronic systems, thereby reducing device complexity while maintaining the wire sliding prevention function
Solution Approach 2:
The blocking mechanism acts as an intermediary between the wire retaining member and the wire. It mediates the release process by being triggered through the maneuvering member when the wire reaches the correct angle, providing a simple mechanical solution that eliminates the need for complex electronic control systems
3Object-affected harmful factors
If the wire retaining member is held in the wire retaining position throughout the tightening process, then the wire is kept at a distance from objects preventing surface damage, but the wire cannot be drawn tightly around the objects
Solution Approach 1:
The wire retaining member transitions from a static held position to a dynamic release position based on the wire's inclination angle. The spring maintains the retaining position during the approach phase, then automatically releases when the wire reaches the predetermined angle, allowing the wire to be drawn tightly against the objects while preventing surface damage during the approach
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 reduces wire sliding against objects, enables rapid tightening, and allows the use of electric motors in wire binding machines without the risk of wire breakage, eliminating the need for an electronic control unit to manage retainer unit openings.
Implementation Method 1
a wire retaining member (10), which is pivotally mounted to the base (2) and comprises a wire contacting part (11) intended to come into contact with a wire (4) during the tightening thereof around one or more objects, the wire retaining member (10) being pivotable, under the action of a press force exerted by a wire (4) bearing against the wire contacting part (11), from an advanced wire retaining position, in which the wire retaining member (10) keeps the wire (4) retained to the retainer unit (1), to a retracted wire releasing position, in which the wire (4) is released from the retainer unit (1)
Data Source
AI summary
A retainer unit for use in a wire binding machine in order to retain and subsequently release a wire during the tightening thereof around one or more objects. The retainer unit comprises: a wire retaining member pivotable, under the action of a press force exerted by a wire, from an advanced wire retaining position to a retracted wire releasing position; a blocking mechanism moveable from a blocking position, in which it prevents the wire retaining member from being pivoted to the wire releasing position, to a non-blocking position, in which it allows the wire retaining member to be pivoted to the wire releasing position. The blocking mechanism is arranged to move to the non-blocking position under the effect of said wire when the wire reaches a given inclination towards a wire contacting part of the wire retaining member. The invention also relates to a wire binding machine comprising several such retainer units.