Multi-track Packaging Machine Gripper System
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Solution Overview
Problem
Existing packaging machines typically have single-lane workstations, limiting their efficiency in processing multiple trays simultaneously, as they require manual or chain-based transport methods that are not adaptable to multi-lane operations.
Innovation Solution
A packaging machine design featuring a first gripper to move trays from an infeed conveyor into a multi-lane workstation and a second gripper to transfer them to an outfeed conveyor, utilizing independent gripper forks and drive devices for precise and efficient movement, allowing for a two-lane or multi-lane operation without lengthening the machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single-lane workstation is used, then the machine structure remains simple and compact, but the processing capacity and productivity are limited
Solution Approach 1:
The workstation is divided into multiple independent lanes (first lane and second lane), each capable of processing trays simultaneously. This segmentation allows parallel processing operations, increasing productivity from processing one tray at a time to processing multiple trays concurrently without requiring a completely new system design
2Productivity
If multiple trays are processed simultaneously in multiple lanes, then productivity increases, but the gripper system becomes more complex
Solution Approach 1:
The gripper system is segmented into independent first and second grippers, each with its own drive device, controlling separate lanes. This allows independent operation of each gripper lane, enabling simultaneous tray transfer operations while keeping each individual gripper mechanism relatively simple and manageable
Solution Approach 2:
The gripper forks are designed to be movable and adjustable, allowing dynamic adaptation to different tray positions and orientations. The drive devices enable the gripper forks to move into and out of the workstation lanes as needed, providing flexible control for multi-lane operations without requiring complex fixed mechanisms
3Adaptability or versatility
If a transport chain with push rods is used instead of grippers, then the structure is simpler, but it cannot be adapted to multi-lane operations
Solution Approach 1:
The gripper system is designed with movable gripper forks that can be dynamically positioned and controlled independently for each lane. This dynamic capability allows the same gripper-based system to adapt to multi-lane operations, providing versatility that rigid transport chains with push rods cannot achieve
Solution Approach 2:
The gripper mechanism serves multiple functions: it can transfer trays between lanes, load trays onto the conveyor, and unload trays from the conveyor. This multi-functionality is achieved through a single versatile gripper design that can operate in different positions and configurations, eliminating the need for separate specialized mechanisms for each function
Data Source
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AI summary
The packaging machine has a workstation (300) and a gripper (1) which moves the packing shells (P) from a feed conveyor (200) in the workstation. Another gripper (2) moves the packing shells from the workstation to a discharge conveyor (400), where the workstation is provided in two tracks. Both the grippers have two gripper forks (3) per track for gripping the packing shells on both sides. A guide device (4a,4b) is provided for guiding the gripper forks in or out the workstation.