Vertical Adhesive Tape Coating for Precise Strip Positioning
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Solution Overview
Problem
Existing methods for producing adhesive tapes with defined adhesive strips are prone to inaccuracies, leading to positioning issues and increased technical investment, which can result in improper hose sheathing and adhesive strip contact with cables, causing stickiness and other production problems.
Innovation Solution
A method where the carrier web is guided vertically through the coating unit to apply adhesive strips without contact, ensuring positional stability and precise alignment, allowing for consistent adhesive strip placement and accurate cutting of individual tapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a dipping roller is used to apply adhesive to the carrier web, then adhesive strips can be defined on the carrier web, but the adhesive strip positioning is inaccurate and the technical investment is considerable
Solution Approach 1:
The patent replaces the mechanical dipping roller system with a pneumatic or spray-based adhesive application system. The adhesive is applied in the form of a stream or spray that is directed at the carrier web, eliminating the need for complex mechanical contact rollers while achieving precise adhesive strip definition and positioning.
Solution Approach 2:
The patent introduces an intermediary adhesive stream that acts as a mediator between the application device and the carrier web. This adhesive stream can be precisely controlled in terms of position, width, and distribution, allowing accurate adhesive strip formation without direct mechanical contact between the application device and the carrier web.
2Reliability
If the carrier web is processed horizontally through the coating unit, then the process is simpler, but the adhesive strips may run or shift in the longitudinal direction
Solution Approach 1:
The patent changes the processing orientation from horizontal to vertical, utilizing the vertical dimension for adhesive application. The carrier web is fed vertically through the coating unit, and the adhesive is applied from above or below, preventing the adhesive strips from running or shifting in the longitudinal direction due to gravity and improved control.
3Productivity
If the adhesive strip positioning is imprecise, then the production process continues, but the hose sheathing cannot be properly implemented or may cause stickiness
Solution Approach 1:
The patent incorporates feedback mechanisms to monitor and control adhesive strip positioning in real-time. Sensors detect the position of adhesive strips on the carrier web, and this information is fed back to the control system, which adjusts the adhesive application parameters to maintain precise positioning, ensuring both production continuity and high-quality hose sheathing.
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 approach reduces inaccuracies and technical investment, enabling the production of adhesive tapes with stable adhesive strips that maintain their position, facilitating proper hose sheathing and preventing unwanted adhesive contact, thus improving the quality and reliability of the finished product.
Implementation Method 1
the coating unit produces the at least one adhesive strip on the carrier web in its longitudinal extension by coating with an adhesive
Data Source
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AI summary
The present invention relates to a method for producing an adhesive tape (2). The adhesive tape (2) possesses a tapelike carrier (3) and at least one strip (4; 4a, 4b) of adhesive which is applied to the carrier (3) on at least one side. Here, first of all, a carrier web (1), coming from a supply unit (7), is supplied to at least one coating unit (9, 10). The coating unit (9, 10) then generates the at least one strip (4; 4a, 4b) of adhesive on the carrier web (1) in its longitudinal extent, by carrying out coating with an adhesive. Lastly, the carrier web (1) is slit in the longitudinal direction into the individual adhesive tapes (2); the two last-mentioned method steps may also be run in the opposite order.