Turret Roll Former Cassettes for Fast Tooling Changeovers
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Solution Overview
Problem
Conventional roll forming machinery requires extensive downtime and costs for changing tooling to produce different cross-sectional profiles, as it involves disassembling the turret assembly and requires skilled labor, leading to significant production losses.
Innovation Solution
A turret roll forming machine with an externally accessible power drive train and cassettes of forming rollers that can be quickly reconfigured without disassembling the turret assembly, allowing for rapid changeovers and reducing the need for skilled technicians, along with a unitary turret assembly for improved rigidity and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional roll tooling is changed to produce different cross-sectional profiles, then product versatility is improved, but production downtime increases significantly
Solution Approach 1:
The roll tooling is segmented into modular cassettes that can be independently changed. Each cassette contains a complete set of forming rollers for a specific cross-sectional profile, allowing individual cassette replacement without affecting other tooling components. This segmentation enables rapid changeovers while maintaining product versatility.
Solution Approach 2:
Multiple roll tooling cassettes are pre-configured for different cross-sectional profiles and stored in ready positions. The turret assembly is pre-loaded with various cassettes, allowing operators to quickly swap between profiles without time-consuming on-site configuration. This preliminary preparation eliminates the need for skilled mechanics and reduces changeover downtime to minutes.
2Adaptability or versatility
If roll tooling is changed frequently to meet customer needs, then product adaptability is improved, but labor costs and skill requirements increase
Solution Approach 1:
The system transitions from static, fixed roll tooling to a dynamic cassette exchange system. The turret assembly can rapidly rotate between pre-configured cassettes, and operators can easily swap cassettes without specialized skills. This dynamic design allows frequent profile changes while reducing dependence on skilled mechanics.
Solution Approach 2:
Multiple identical cassette designs are created for different cross-sectional profiles. Each cassette is a standardized, interchangeable unit that can be replicated and stored in advance. This copying approach allows any profile to be quickly deployed by simply loading the appropriate pre-made cassette, eliminating the need for skilled workers to configure tooling each time.
3Manufacturing precision
If complete roll tooling sets are changed for different profiles, then manufacturing accuracy is maintained, but changeover complexity increases
Solution Approach 1:
The invention merges the complete roll tooling set into a single integrated cassette unit. Each cassette contains all necessary forming rollers, shafts, and mounting components as one unified assembly. This merging simplifies the changeover process to a single replacement operation while ensuring that all tooling components are pre-configured to maintain manufacturing precision.
Solution Approach 2:
Each cassette is pre-assembled and pre-configured with the exact roller positions and clearances needed for specific cross-sectional profiles. This preliminary setup ensures manufacturing accuracy is maintained while reducing changeover complexity, as operators simply exchange complete, pre-configured cassettes rather than individually adjusting multiple components.
Data Source
AI summary
A turret roll forming machine includes at least one turret assembly carrying multiple rows of tooling (e.g., forming rollers), rotatable about an axis to selectively align rows of tooling with an input or output. A transmission is accessible from an exterior of the turret assembly without disassembling of the turret assembly to perform a changeover of roll tooling and/or maintenance on gears, bearings, or shafts of the transmission. Thus, a chain drive may be employed, advantageously accommodating differing rotational speeds for top and bottom forming rollers of each pair of forming rollers, e.g. to reduce roll scuffing. Pairs of forming rollers may be provided as cassettes, which are removably coupleable to the turret assembly allowing quick and easy reconfiguration and/or servicing, minimizing negative effects of changeover. The turret assembly may be a unitary structure (e.g., a weldment) improving rigidity and increasing accuracy of roll forming operations.