Sheet Transport Stop with Laser Edge Detection
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Solution Overview
Problem
Existing devices for feeding flat goods to processing units, such as sheet metal coating machines, face challenges in maintaining precise alignment and reducing mechanical stress on panels at high production speeds, leading to edge damage and difficulties in manual synchronization adjustments.
Innovation Solution
A device featuring a transport system with rotating transport stops and sensors for real-time edge detection and automatic synchronization adjustments, ensuring smooth and shock-free transfer of panels, supported by a guide system with rotating transport belts and chains for precise alignment and adaptive speed control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional mechanical alignment devices are used, then alignment precision can be achieved, but mechanical stress and edge damage occur on sheets at high speeds
Solution Approach 1:
The patent replaces conventional mechanical alignment stops and positioning devices with a laser-based optical measurement system. The laser sensor detects the position of sheets without physical contact, eliminating mechanical stress and edge damage while maintaining alignment precision through optical field interaction rather than mechanical force.
Solution Approach 2:
The patent introduces laser beams as an intermediary between the alignment system and the sheets. The laser sensor detects sheet position through optical reflection and position-sensitive detectors, using light as a non-contact mediator to achieve precise alignment without direct mechanical contact that causes damage.
2Ease of operation
If manual synchronization adjustment is used, then operator control is maintained, but adjustment precision deteriorates at high production speeds
Solution Approach 1:
The patent implements an automated feedback control system where laser sensors continuously detect sheet positions and feed this information to a control unit. The control unit automatically adjusts synchronization based on real-time optical measurement data, eliminating the imprecision of manual visual adjustment while maintaining operational control through automated regulation.
Solution Approach 2:
The patent replaces manual visual detection and adjustment mechanisms with an automated optical measurement and control system. The laser sensor and position-sensitive detector automatically measure sheet positions and synchronize transport without operator intervention, achieving high precision at high speeds through electronic control rather than manual adjustment.
3Device complexity
If friction-dependent transport means are used, then simple transport is achieved, but synchronization precision is lost due to variable friction coefficients
Solution Approach 1:
The patent introduces a feedback control system that uses laser sensors to detect sheet positions and automatically adjusts transport synchronization. This compensates for variable friction coefficients by continuously monitoring actual sheet positions and regulating transport timing, maintaining precision despite the simplicity of friction-dependent transport means.
Solution Approach 2:
The system uses the laser sensor to automatically detect and compensate for synchronization deviations without external intervention. The control unit self-regulates the transport synchronization based on real-time optical measurements, allowing the simple friction-dependent transport means to operate with high precision through automatic self-correction.
Data Source
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AI summary
The invention relates to a device for feeding planar goods (02) to a processing unit (50) in a transport plane, in particular for feeding sheets (02) to a printing and/or coating unit of a coating machine or the like, wherein the planar goods (02) are transported in a sequential arrangement in a horizontal position by means of a transport device (01), wherein the transport device (01) has a first transport unit (10) with a guide forming the transport plane for the planar goods (02) and at least one circumferential transport stop (18), wherein the transport stop (18) acts on the trailing edge (03) of a respective planar good (02) guided in the transport plane and wherein a sensor (41) is associated with the first transport unit (10).which is designed to detect the actual position of the trailing edge (03) of the respective planar good (02) guided in the transport plane and is connected to an evaluation device, wherein the evaluation device is designed to compare the detected actual position with a target position represented by the position of the at least one circumferential transport stop (18).