Zigzag Laying Device With Orthogonal Contact Section
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Solution Overview
Problem
Existing methods for laying down flexible material webs in a zigzag pattern often result in surface damage, energy loss due to friction, and electrostatic issues, limiting speed and quality of the deposited material.
Innovation Solution
The method involves engagement elements that move orthogonally to the laying direction, minimizing contact surface and friction by changing positions between engagement and release positions, allowing for small contact areas and reduced risk of surface damage, with adjustable lengths and orientations to optimize the zigzag pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the engagement element performs a translatory retraction movement over the entire deposit length, then the material web can be laid down, but the surface quality is damaged and energy is lost due to friction
Solution Approach 1:
The engagement element is designed with a movable contact section that dynamically changes its position relative to the material web. The contact section moves from an engaged position (contacting the web) to a retracted position (away from the web) during the laying process. This dynamic adjustment minimizes the contact path and friction, thereby reducing energy loss and preventing surface damage while maintaining laying productivity
Solution Approach 2:
The contact section is extracted or separated from the main engagement element body, allowing it to move independently. This separation enables the contact section to be positioned precisely where needed (at the loop area) and retracted from areas where it would cause damage (over the deposit surface), thus eliminating surface damage while maintaining the laying function
2Reliability
If the engagement element contacts the material web over the entire laying length, then the web can be guided, but friction causes energy loss and electrostatic effects
Solution Approach 1:
The engagement element provides localized guidance only where necessary - specifically at the loop area where the material web bends. The contact section is positioned to engage only in this local region rather than along the entire laying length. This localized engagement maintains web guidance reliability while minimizing the contact area, thereby reducing friction losses and electrostatic effects
3Productivity
If the engagement element moves in the laying direction, then the web can be conveyed, but the contact surface is large causing friction and surface damage
Solution Approach 1:
Instead of moving the contact section along the laying direction (one dimension), the contact section moves in a direction orthogonal to the laying direction (another dimension). This perpendicular movement allows the contact section to engage and disengage from the material web without creating a long contact path in the laying direction, thereby minimizing friction and energy loss while maintaining conveying productivity
Data Source
AI summary
A method and a device are specified for depositing a flexible material web, wherein the material web (2) is supplied by means of a supply means and deposited in a zigzag shape at a depositing location (2) by means of a laying means, wherein the material web (2) after exiting from the supply means is contacted by at least two engagement elements (5, 6), which can be moved at least in opposite laying directions (A, B), of the laying means and is guided to the depositing location (2). The engagement elements (5, 6) change their position during the contact with the material web (1) between an engagement position (E) and a release position (F), the quality of the deposited material web remaining largely unaffected, because each engagement element (5, 6) has a contact section (7, 8), which can be brought into a contact position (K) in the engagement position (E) and into an idle position (L) in the release position (F), wherein the movement direction (C, D) of the contact section (7, 8) is oriented at a downward angle to the laying direction (A, B).