Squeegee with Magnetic Shape-Memory Alloy for Automatic Collision Protection

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention relates to a device that uses a squeegee (doctor blade) to remove excess material, such as ink, from a surface. The squeegee is lightweight, compact, and features integrated collision protection, using a body made of a magnetic shape memory alloy. The design allows the squeegee to automatically lift or lower in response to forces encountered during operation, thus helping it avoid damage from obstacles.

Use CasesContent extracted from patent full text and abstract with AI.

• Printing machines to remove surplus ink or coatings from rollers or flat surfaces
• Industrial coating lines for precise application and removal of excess materials
• Packaging lines requiring cleaning or removal of adhesives or coatings
• Automated production equipment where collision protection is important

BenefitsContent extracted from patent full text and abstract with AI.

• Lightweight and compact design for easier handling and integration into machinery
• Built-in collision protection to prevent damage to the squeegee and machine components
• Automatic lifting/lowering mechanism increases safety and reliability during operations
• Potentially reduces maintenance and downtime due to fewer squeegee damages

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Inventors & Applicants

Patent Abstract

The invention relates to a device for stripping off applied excess material with a squeegee, which is moved by a drive between two stationary parts arranged at a distance from one another and with the material located therebetween, and a use of such a squeegee. The device is characterized in particular by a light and compact squeegee with integrated collision protection. For this purpose, the squeegee is connected to a body made of a magnetic shape memory alloy. Furthermore, the stationary parts each have a device for reorienting the crystal lattice of the body made of the magnetic shape memory alloy, so that the squeegee is lowered when the length increases and is raised when the length decreases. Furthermore, the body made of the magnetic shape memory alloy connected to the squeegee is an inherent collision protection device of the squeegee, wherein upon collision of the squeegee with an obstacle and the force acting on the body as a result, a reorientation of the crystal lattice of the body and the resulting change in length raises the squeegee.