Riveting Machine Head Ejection Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing riveting machines face issues with self-release of rivet tails after breakage, obstruction of cooling air channels, and manual intervention for seized rivets, particularly in automated systems, due to the inability to eject rivet tails efficiently and clear the channel for air flow.
Innovation Solution
A modified riveting machine head design that allows automatic release and ejection of rivet tails through gravity or compressed air, utilizing a control mechanism involving a sliding chuck and a flexible sleeve, enabling self-release and maintaining air flow channels without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rivet tail is ejected by the push of the subsequent rivet tail through the rear opening, then the machine can be prepared for the next cycle, but jamming frequently occurs causing machine stop and the cooling air channel becomes obstructed
Solution Approach 1:
The invention extracts the harmful rivet tail from the machine head through a dedicated ejection channel instead of relying on the push method through the rear opening. This extraction principle eliminates the jamming problem by providing a separate, dedicated path for tail removal that does not interfere with the cooling air flow or subsequent rivet insertion.
Solution Approach 2:
The invention segments the ejection function from the main riveting channel by creating a separate ejection channel. This segmentation allows the cooling air to flow through its dedicated path while the rivet tail is removed through another path, eliminating the obstruction problem and ensuring continuous operation.
2Ease of operation
If manual intervention is used to release seized rivets from the head jaws, then the rivet can be freed, but automated operation is compromised and operational delays occur
Solution Approach 1:
The invention implements self-service by automatically releasing the rivet tail from the chuck jaws through the controlled retraction mechanism. The system self-manages the tail release without requiring manual intervention, maintaining automated operation and eliminating delays associated with manual retrieval.
3Device complexity
If the rivet tail remains seized in the head until the subsequent tail arrives, then no additional ejection mechanism is needed, but the cooling air channel is obstructed preventing proper cooling
Solution Approach 1:
The invention segments the functions by creating separate channels for cooling air flow and rivet tail ejection. This segmentation allows the cooling air to flow freely through its dedicated channel while the rivet tail is removed through the ejection channel, preventing obstruction and maintaining cooling efficiency without adding excessive 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
Enables automatic operation of riveting machines, ensuring efficient ejection of rivet tails and maintaining air flow channels, reducing operational delays and improving automation compatibility.
Implementation Method 1
a resilient element (55) arranged to propel the chuck (41) in a first direction towards the front part (33)
Implementation Method 2
the rivet tail that has remained seized within the chuck after breakage is released from the engagement with the chuck jaws and can be ejected from the head either by gravity
Implementation Method 3
ejected from the head either by gravity or by means of a flow of compressed air
Data Source
AI summary
A head for a riveting machine for applying shear rivets, the head comprising a plate and a body that have both a hole and are slidable relative to each other, and a sliding chuck equipped with jaws and arranged within a sliding chamber, defined inside said body, so as to engage a stem of the rivet, said chuck being capable of taking a first, engagement position and a second, disengagement position, wherein a control member controlling the sliding movement of the chuck is provided, said control member being in turn controlled by the plate sliding. The invention further concerns the method of controlling the head.