Corrugator Gripper Mechanism for Linear Jaw Return
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing corrugator devices with gripper systems for returning molding jaws have structurally complex and expensive mechanisms, occupying significant space and preventing full utilization of the machine table for jaw movement.
Innovation Solution
The implementation of separate X-guide and Y-guide devices, driven by servo motors, allows for a structurally simple gripper system that eliminates the need for pivot arms, enabling efficient surface area utilization and linear movement of molding jaws, with a motor-driven latching pin or clamp mechanism for engagement with molding jaws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pivot arms are used for gripper actuation, then the molding jaws can be returned to the start position, but the structural complexity and cost increase significantly
Solution Approach 1:
The gripper system is divided into separate functional components: X-guide device for longitudinal movement, Y-guide device for transverse movement, and independent servo motors for each direction. This segmentation eliminates the need for complex pivot arms while maintaining precise control of the molding jaws return movement.
Solution Approach 2:
The traditional mechanical pivot arm mechanism is replaced with a linear actuation system using servo motors that directly drive the gripper along linear guide paths. This substitution of mechanical systems reduces structural complexity while improving control precision.
2Ease of operation
If pivot arms are used for gripper actuation, then the molding jaws can be returned to the start position, but the structural space required increases
Solution Approach 1:
The gripper movement is decomposed into independent X and Y dimensional movements guided by separate guide devices. This allows the gripper to return to the start position through linear trajectories rather than arced pivot movements, maximizing utilization of the machine table surface area.
3Area of stationary object
If separate X-guide and Y-guide devices are used, then the surface area for jaw movement is optimized, but the device complexity increases
Solution Approach 1:
The X-guide device and Y-guide device are designed as modular, universally applicable linear guide systems that can be independently configured. Each guide device serves multiple functions: positioning, guiding, and supporting the gripper movement, thereby reducing overall system complexity despite the increased number of guide components.
4Ease of operation
If pivot arms are used, then the molding jaws can be returned to the start position, but the manufacturing cost increases
Solution Approach 1:
The guide devices and servo motors are designed as standardized, off-the-shelf components that can be easily manufactured and replaced. This approach prioritizes ease of manufacture and maintenance over the use of expensive, custom-built pivot arm mechanisms, reducing overall manufacturing costs.
Data Source
AI summary
A corrugator device for shaping thermoplastic corrugated pipes out of a molten plastic tube issuing from an extrusion device may include moving molding jaws which circulate in a linear molding section and are arranged in paired successive relationship in the molding section forming a molding passage. The pairs of molding jaws may be formed from left-hand and right-hand molding jaws and between them enclose a cylindrical mold cavity to form the molding passage. The device may include a gripper device for guiding the molding jaws from the end of the molding section back to the start of the molding section, and having grippers respectively for the left-hand and the right-hand molding jaws, each with a separate guide and drive device.