C-Shaped Catch Claw for Precision Conveyor Singulation
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Solution Overview
Problem
Existing accumulation conveyor systems suffer from complex designs with insufficient precision and reliability in separating workpiece carriers, which is critical in high-robotics production lines where repeat accuracy and precision are essential.
Innovation Solution
A separating device with C-shaped catch claws driven by rotary motors, featuring few components and designed to move between stop, catch, and release positions, utilizing round holding elements as roller bearings to ensure precise and low-friction interaction, and optionally equipped with hard rubber covers and grooves for enhanced durability and cleanliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If simple rod stoppers driven by drive cylinders are used to stop workpiece carriers, then the device construction is simple, but the positioning precision and reliability are insufficient
Solution Approach 1:
The invention uses C-shaped catch claws with curved geometry instead of simple rod stoppers. The C-shape allows the claw to engage with the workpiece carrier in a manner that provides both simplicity of construction and high positioning precision, as the curved shape naturally guides and centers the workpiece carrier during engagement.
Solution Approach 2:
The separating device employs a rocker mechanism that enables dynamic movement between different operational positions (loading position, unloading position, and intermediate position). This dynamic capability allows the same simple mechanical structure to achieve multiple functions with high reliability and precision throughout its motion cycle.
2Ease of operation
If multiple pins and rockers are used to stop and separate workpiece carriers, then the separation function is achieved, but the variety of parts increases and precision is insufficient
Solution Approach 1:
The C-shaped catch claw serves multiple functions: it acts as a stop, a separator, and a positioning element. The single rocker mechanism also performs multiple roles by moving the catch claw between different positions. This multi-functionality eliminates the need for multiple separate pins and rockers, reducing part variety while maintaining full separation capability.
Solution Approach 2:
The invention combines the stopping and separating functions into a single integrated C-shaped catch claw mechanism driven by one rocker. Instead of using separate pins for stopping and separate mechanisms for separation, the C-claw performs both functions through its single engagement point and rockering motion, thereby reducing the overall variety of parts.
3Productivity
If conventional stop mechanisms are used, then workpiece carriers can be stopped, but the repeat accuracy and reliability of positioning are insufficient for high-robotics production lines
Solution Approach 1:
The C-shaped catch claw mechanism provides inherent feedback through its mechanical engagement geometry. The curved shape ensures that the workpiece carrier is guided into a precise, repeatable position during each engagement, creating a self-correcting positioning system that maintains high repeat accuracy essential for robotic automation.
Solution Approach 2:
The curved C-shape of the catch claw creates a natural guiding effect that centers and positions the workpiece carrier with high precision during engagement. This geometric feature ensures repeatable positioning accuracy without requiring complex control systems, making it ideal for high-robotics production lines where consistency is critical.
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 achieves high operational reliability and precision with reduced wear and increased service life, allowing for precise positioning and gentle operation, thereby improving the separation process on accumulation conveyors.
Implementation Method 1
the round holding elements as roller bearings, such. B. ball, roller or needle bearings are formed
Implementation Method 2
the outer ring of the roller bearing has a cover made of hard rubber. The device according to the invention can thus be operated more gently, since the cover made of hard rubber acts like a damper
Data Source
Figure 1
Figure 2
Figure 3~3d
AI summary
Singulation device, in particular for accumulation conveyors, with at least one stop for stopping and/or releasing a workpiece carrier and with a drive for the stop, characterized by at least one rotary drive (314), at least one stop arranged on the rotary drive (314) essentially designed as a C-shaped catch claw (32), wherein the rotary drive (314) is arranged such that it and thus the catch claw (32) are rotatable into various positions such as a stop, catch, hold and release position (ST, FA, HA and FR) for the workpiece carrier (34), for interaction with a holding element (38) of the workpiece carrier (34).