Four-Slide Perforating Press for Variable Pattern Control
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Solution Overview
Problem
Existing perforating presses have limited flexibility in creating variations in perforation patterns, struggle with precise control, and are inefficient due to the need for frequent stopping and starting of the transmission shaft, which reduces productivity and imposes mechanical stress.
Innovation Solution
A perforating press with four rows of punches and independently slidable slides between each row, allowing for individual control of each row, enabling more complex patterns and closer line spacing, using hydraulic cylinders for quick and precise movement of slides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two rows of punches are used with slides to enable different line spacing and offset patterns, then the adaptability of perforation patterns is improved, but the device complexity increases due to additional slides and clutch brake mechanisms
Solution Approach 1:
The punch holder is divided into four independent rows of punches, each row controlled by its own set of slides. This segmentation allows each row to be independently positioned and activated, enabling complex perforation patterns without requiring a single complex control mechanism for all punches.
Solution Approach 2:
The slides are made dynamically adjustable during operation, allowing the position and activation state of each punch row to be changed on-the-fly. This dynamic control eliminates the need for fixed, pre-configured punch arrangements and complex clutch brake mechanisms for reconfiguration.
2Adaptability or versatility
If slides are slid slowly to engage or disengage punch rows, then the adaptability is improved, but the productivity decreases due to temporary stopping of the transmission shaft
Solution Approach 1:
The slides are pre-positioned and spring-loaded to automatically engage or disengage punch rows without requiring slow, controlled movement during operation. The preliminary positioning and spring force enable rapid engagement/disengagement while the transmission shaft continues running at full speed.
Solution Approach 2:
The spring-loaded slides automatically engage or disengage punch rows based on their position, without requiring external control mechanisms or temporary stopping of the transmission shaft. The system serves itself through the mechanical design of the slides and springs.
3Adaptability or versatility
If the transmission shaft is stopped frequently using clutch brake to engage or disengage slides, then the adaptability is improved, but the loss of time increases and mechanical stress is imposed
Solution Approach 1:
The slide mechanism is designed to be dynamically adjustable during continuous operation, allowing punch rows to be engaged or disengaged without stopping the transmission shaft. This eliminates production downtime while maintaining configuration flexibility.
Solution Approach 2:
The transmission shaft continues to operate continuously without interruption, while the slide mechanism handles all configuration changes. This ensures uninterrupted production while maintaining the ability to adapt punch row configurations as needed.
4Adaptability or versatility
If two rows of punches are used with both rows always moving up and down, then the adaptability is improved, but the use of energy increases due to constant movement of all punches
Solution Approach 1:
The four independent punch rows can be selectively activated or deactivated based on the required perforation pattern. This segmentation allows only the necessary punches to move and perform work, reducing energy consumption compared to moving all punches regardless of need.
Solution Approach 2:
Instead of always moving all punch rows, the system uses only the partial action of activated rows. This partial action approach reduces energy consumption by avoiding unnecessary movement of deactivated punch rows while maintaining full adaptability when needed.
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
This configuration allows for a wide range of perforation pattern variations, including local deviations within a line, and enables efficient production with reduced mechanical stress and increased productivity by eliminating the need for clutch brakes.
Implementation Method 1
a set of slides (12, 13, 14, 15) between the transmission shaft (11) and the punch holder (1), wherein the slides of a set of slides (12, 13, 14, 15) are slidable relative to each other independently from the slides of a set of slides (12, 13, 14, 15) related to any other row of punches (2, 3, 4, 5), wherein at least one slide (12, 13, 14, 15) is movable by injection or release of a predetermined volume of oil
Data Source
AI summary
The present invention relates to a perforating press for perforating sheet material comprising a feeder; a punch holder comprising a first and a second row of punches; a transmission shaft for moving the punch holder in a stroke direction, wherein a set of slides is positioned between each row of punches and the transmission shaft, wherein a set of slides comprises two slides, wherein a slide comprises on a first side an at least partially continuous sawtooth profile, wherein the two slides of a set of slides are positioned with their sawtooth profiles slidably on top of each other; and a discharge means; wherein the punch holder comprises a third and a fourth row of punches and wherein the slides of a set of slides related to any one row of punches are slidable between at least three positions relative to each other independently from the slides of a set of slides related to any other row of punches. The invention also relates to a method and a use.