Curved Transport Path Entry Region for Jerk-Free Pusher Dog Movement
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Solution Overview
Problem
Existing transport systems face difficulties in achieving a smooth, jerk-free, and wear-optimized movement of pusher dogs into curved transport paths due to the oblique contact at the entry region, leading to sudden and wear-prone movements, which can damage objects and cause downtimes in manufacturing installations.
Innovation Solution
A transport system design where only one curve flank of the curve flank pair is provided in the entry region, with the first curve flank ascending with a positive pitch and merging into an offset portion, allowing the pusher dog to enter the curved transport path gently, preventing sudden impacts and ensuring a jerk-free movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both curve flanks are provided in the entry region, then the curved transport path is fully defined, but the pusher dog experiences sudden impacts and jerky movement
Solution Approach 1:
The first curve flank is provided in advance of the second curve flank in the entry region, allowing the pusher dog to gradually adapt to the curved transport path before the second curve flank engages. This preliminary engagement prevents sudden impacts by preparing the pusher dog for the curved motion sequence.
Solution Approach 2:
The entry region is segmented into two distinct curve flanks with different functions. The first curve flank handles the initial engagement and gradual acceleration, while the second curve flank takes over for continued transport. This segmentation allows each flank to be optimized for its specific role, reducing overall impact on the pusher dog.
2Productivity
If the transport body rotates rapidly to increase productivity, then more objects can be transported per unit time, but the pusher dog experiences increased wear and potential damage
Solution Approach 1:
The first curve flank performs preliminary acceleration of the pusher dog before the second curve flank engages. This gradual acceleration reduces the impact forces experienced during rapid rotation, allowing higher transport speeds without proportionally increasing wear and damage risk to the pusher dog.
3Ease of operation
If the curve flank is positioned to optimize engagement, then the pusher dog enters smoothly, but the entry region becomes more complex
Solution Approach 1:
The entry region is divided into two sequential curve flanks with distinct functions. The first curve flank handles initial engagement and acceleration, while the second curve flank continues the transport path. This segmentation provides a clear functional division that simplifies the overall design while achieving smooth engagement.
Data Source
AI summary
A transport system for transporting and/or positioning objects along a transport section, wherein the transport system includes at least one rotatable transport body having at least one curved transport path which is delimited by at least one curve flank pair and, as seen in the linear transport direction, has at least one positive curved transport path pitch throughout and into which there can engage or there engages at least one pusher dog of a carrier that is movable along the transport section, wherein the at least one transport body has at least one entry region for the entry of the at least one pusher dog into the curved transport path. A transport body for a transport system, wherein the transport body has an entry end and an exit end, at least one ascending curved transport path which is delimited by at least one curve flank pair and has at least one positive curved transport path pitch, and at least one entry region for the entry of at least one pusher dog of a carrier of the transport system into the curved transport path.