Multi-Hinge Clamping Mechanism for Rotary Press Tool Plates
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Solution Overview
Problem
Existing devices for perforating, creasing, and punching in rotary printing presses are complex and time-consuming to set up, with limited flexibility in tool plate positioning and clamping, which affects operational efficiency and safety.
Innovation Solution
A device featuring a multi-leg hinge strip with a hinge joint connection and energy accumulator for secure clamping of a tool plate, allowing for easy setup, position adjustments, and secure operation, reducing the number of components and enhancing safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fastening strips are used to attach the tool plate, then the tool plate can be secured to the rotary cylinder, but the setup process becomes complex and time-consuming
Solution Approach 1:
The fastening strip is divided into multiple hinge legs (first hinge leg and second hinge leg) that can be articulated relative to each other. This segmentation allows the fastening mechanism to be applied to the tool plate in a simplified, step-by-step manner, reducing setup time while maintaining secure clamping through the articulated folding action.
2Reliability
If multiple components are used for clamping the tool plate, then secure fastening is achieved, but the device complexity increases
Solution Approach 1:
The first hinge leg and second hinge leg are merged into a single articulated fastening strip assembly that functions as an integrated clamping mechanism. This merging reduces the number of separate components needed while maintaining secure fastening through the hinge joint connection between the legs.
Solution Approach 2:
The articulated fastening strip with hinge legs serves multiple functions: it provides secure clamping, allows for easy attachment and detachment, enables position adjustments, and ensures rattle-free operation. This multi-functionality reduces the need for separate components for each function.
3Reliability
If the tool plate is firmly clamped, then operational safety is enhanced, but the flexibility for position adjustments is reduced
Solution Approach 1:
The hinge legs are designed to be articulated and foldable, providing dynamic adjustment capability during setup. Once positioned, the hinge legs can be folded to firmly clamp the tool plate, ensuring operational safety. The dynamic nature of the hinge joint allows transition between adjustment mode and secure clamping mode.
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
Significantly reduces setup time, enhances operational safety, and ensures high-quality perforating, creasing, and punching by providing a secure, easy-to-handle, and rattle-free clamping mechanism for the tool plate.
Implementation Method 1
a) at least one energy accumulator (29), in particular at least one spring element, which prestresses the hinge legs (20, 21) in the folded state in the direction of the latching engagement
Implementation Method 2
at least one energy accumulator (29), in particular at least one spring element, which prestresses the hinge legs (20, 21) in the folded state
Data Source
AI summary
The invention relates to a device for perforating and/or fluting and/or punching for rotary presses and/or rotary printing presses, comprising a rotation cylinder (3) having a holding device (11, 12) which fixes a base plate (10) made of a flexible and dimensionally stable material to the rotation cylinder (3). Fixing rods are arranged at a distance from each other in the peripheral direction of the rotation cylinder (3), said rods holding a flexible tool support (19) supporting at least one machining tool (52) in such a manner on the rotation cylinder (3) such that tool support lies directly or indirectly on the base plate (10). According to the invention, the fixing rods are respectively formed from at least one multi-jointed hinge bar (17, 18) which comprises a first hinge bar (20) which holds the hinge bar (17, 18) on the rotation cylinder (3), in particular on the holding device (11, 12) and/or on the base plate (10). Additionally, a second hinge bar (21) is connected in an articulated manner to the first hinge bar (20) by means of a hinge axis (23) such that when the hinge bars (20, 21) are in the superimposed and/or closed state, the tool support (19) is clamped and/or received between said bars.