Pendulum Gripper Laying Device for Continuous Strip Deposition
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Solution Overview
Problem
Conventional gripper systems for laying band-shaped materials, such as fiber rovings, require an idle stroke to pick up new sections after depositing, leading to increased process times and inefficiencies in producing semi-finished products with multiple layers.
Innovation Solution
A laying device with two gripper systems and a pendulum gripper that alternately pulls out and deposits band sections without an idle stroke, allowing continuous feeding and deposition by moving the pendulum gripper between the gripper systems, enabling simultaneous feeding of one band while the other is being deposited.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional gripper system is used to pull and deposit strip sections, then the depositing function is achieved, but an idle stroke is required to pick up new sections after depositing, increasing process time
Solution Approach 1:
The patent implements continuous useful action by having the first gripper system deposit a first strip section while the second gripper system simultaneously pulls out a second strip section. This eliminates the idle stroke because one gripper is always engaged in a productive operation - either depositing or preparing the next strip section, ensuring the useful action continues without interruption
Solution Approach 2:
The patent applies preliminary action by having the second gripper system pull out and prepare the second strip section before the first gripper system completes its depositing operation. This advance preparation ensures that when the first gripper finishes depositing, the second gripper already has the next strip section ready, eliminating waiting time and idle strokes
2Productivity
If multiple layers of strip-shaped material are laid sequentially with idle strokes, then layer deposition is achieved, but production time increases significantly
Solution Approach 1:
The patent implements periodic action through alternating operations of the first and second gripper systems. While the first gripper deposits a strip section, the second gripper pulls out the next section, and then they alternate. This periodic coordination of two gripper systems enables continuous production across multiple layers without idle strokes, significantly reducing total process time compared to sequential single-gripper operations
Data Source
Figure 1a~1c
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AI summary
The invention relates to a laying device and a laying method for strip-shaped material, comprising a first gripper system (2) for drawing out a first strip from a first storage unit (4.1), and a first separating device and a depositing surface (1.1) for depositing a separated strip section of the first strip (F1), wherein the first gripper system (2) and the depositing surface (1.1) are movable relative to each other in several axes, and wherein the first gripper system (2) has at least one first axially movable gripper for gripping the strip (F1), which is movable along a longitudinal axis for drawing out and positioning the strip, wherein the laying device has at least one second gripper system (3) with at least one second gripper for drawing out a second strip (F2) from a second storage unit (4.1).2) has, wherein the first and second grippers are movable towards and away from each other and a pendulum gripper is movable back and forth between the first and second grippers and is designed to alternately extend the first belt (F1) and the second belt (F2) to a required length and place them on the storage surface (1.1).