Angularly Adjustable Perforating Device for Web Material
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Solution Overview
Problem
Existing perforating devices for continuous web materials lack flexibility and require complex, manual operations to switch between different counter-blades, leading to inefficiencies and safety risks in production.
Innovation Solution
A perforating device with a support beam that is angularly adjustable and equipped with a movable abutment and actuating devices, allowing for servo-assisted selection and positioning of counter-blades, enabling easy switching between different operating modes without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple counter-blades are mounted on a fixed support beam, then the device can selectively work with different counter-blades, but switching between counter-blades requires complex manual operations and machine shutdown
Solution Approach 1:
The support beam is transformed from a fixed structure to a dynamically adjustable one, capable of rotating around a vertical axis and translating along the longitudinal axis. This dynamic positioning system allows the operator to easily select different counter-blades by moving the support beam to appropriate angular positions, eliminating complex manual switching operations while maintaining versatility.
Solution Approach 2:
The support beam serves multiple functions: it holds multiple counter-blades, provides angular positioning for blade selection, and enables longitudinal adjustment for different working positions. This multi-functional design consolidates what would otherwise require separate mechanisms into a single integrated system.
2Adaptability or versatility
If manual switching between counter-blades is implemented, then the device can change operating modes, but production downtime increases and operator safety risks arise
Solution Approach 1:
The dynamic support beam allows rapid repositioning between counter-blades during operation. The longitudinal movement capability enables the beam to quickly transition between working positions without requiring machine shutdown, thereby maintaining productivity while enabling mode changes.
Solution Approach 2:
The system is designed to facilitate easy self-adjustment by the operator through intuitive mechanical movements. The support beam's inherent mobility allows the operator to perform blade selection and positioning without complex procedures or specialized intervention, reducing both downtime and safety risks.
3Ease of operation
If the support beam is made angularly adjustable, then counter-blade selection is simplified, but the device complexity increases
Solution Approach 1:
The angular adjustability is implemented through a relatively simple rotational mechanism around a vertical axis, allowing the support beam to sweep through different angles to access various counter-blades. This dynamic angular positioning provides ease of operation without requiring complex multi-axis control systems.
Solution Approach 2:
The positioning system is segmented into independent angular and longitudinal adjustment components. The angular adjustment mechanism operates independently to select counter-blades, while longitudinal movement handles position adjustment, dividing the complexity into manageable, independent functions.
Data Source
AI summary
Perforating device for perforating a web material including a first blade-holder adapted to rotate around a respective first rotation axis and on which at least a first perforating blade is mounted; and a support beam, on which a plurality of counter-blades are mounted; the support beam being angularly adjustable around a selection rotation axis thereof in a plurality of angular working positions, in each angular working position one of the counter-blades being in an operative position. A movable abutment is provided adapted to co-act with the support beam. A first actuating device is provided for moving the movable abutment between an active position, where the movable abutment co-acts with the support beam, and an idle position, where the movable abutment is spaced from the support beam. A second actuating device is provided for rotating the support beam in order to arrange it selectively in one of the angular working positions.