Magazine Unit Strip Release Mechanism
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Solution Overview
Problem
The existing magazine unit for strips of fixing means, such as nails, has a complex structure requiring complicated activation means and two pneumatic piston drives, leading to increased costs and complexity.
Innovation Solution
The magazine unit is optimized by mechanically coupling the separating unit to the feed slide, allowing the feed slide to trigger the release of the lowest strip without a separate drive, and using a releasing unit with flaps that engage with the feed slide's guide contour to achieve high operational reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate pneumatic piston drive is assigned to each flap in the separating unit, then high cycle rate and operational reliability are achieved, but device complexity and cost increase
Solution Approach 1:
The patent combines the drive function for both flaps into a single pneumatic piston drive mechanism. The piston rod is connected to both flaps through a coupling mechanism, allowing one drive to control the opening and closing of both flaps simultaneously, thereby reducing the number of drives from two to one while maintaining operational reliability
Solution Approach 2:
The single pneumatic piston drive performs multiple functions: it actsuates the first flap to release the strip, actuates the second flap to retain remaining strips, and coordinates both actions through its rod connection. This multi-functional design eliminates the need for separate drives for each flap, reducing complexity while preserving the high cycle rate capability
2Productivity
If two pneumatic piston drives are used for the separating unit, then high cycle rate is achieved, but manufacturing cost increases
Solution Approach 1:
The patent merges two separate pneumatic piston drives into a single drive mechanism. The piston rod connects to both flaps through a coupling arrangement, allowing one pneumatic actuator to perform the work previously requiring two separate actuators, thereby reducing component count and manufacturing cost while maintaining the high cycle rate
3Reliability
If the separating unit is configured with two flaps and separate drives, then operational reliability is maintained, but the structure becomes complicated
Solution Approach 1:
The patent combines the activation mechanism for both flaps into a single pneumatic piston drive system. The piston rod is mechanically coupled to both flaps, allowing coordinated actuation through one activation event. This reduces the complexity of activation means while preserving the dual-flap reliability mechanism
Solution Approach 2:
The piston rod acts as an intermediary element that transfers the single pneumatic activation force to both flaps. This intermediary mechanism allows one drive to control two flaps, simplifying the activation means while maintaining the operational reliability provided by the dual-flap configuration
Data Source
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AI summary
The invention relates to a magazine unit for strips (1) of fixing means, which in the mounted state supplies strips (1) of fixing means to a driving assembly (3), wherein there is a magazine shaft (9) in which the strips (1) are magazined one on top of another, and wherein underneath the magazine shaft (9) there extends a fixing-means support (10) via which the strips (1) can be fed along their longitudinal axis (11) to the driving assembly (3), wherein there is arranged in the lower region of the magazine shaft (9) a separating unit (12), with which the magazined strips (1) can be released individually to the fixing-means support (10), wherein the separating unit (12) is or can be coupled mechanically to a feed slide (13) such that the feed slide (13), in a triggering movement (15), causes the strip (1) located in the lowest magazine position to be released to the fixing-means support (10). The invention leads to an optimized structure of the magazine unit from a cost point of view.