Label Sleeve Ejection Timing Control via Slow-Motion Feedback
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Solution Overview
Problem
The precise coordination of label sleeve ejection timing with moving objects at high speeds is challenging due to a small time window, making manual adjustment difficult and prone to errors.
Innovation Solution
A device and method that record and display an image sequence of the label sleeve ejection process in slow motion, allowing users to intuitively adjust the ejection timing using input elements to change control parameters, ensuring accurate alignment with the object's position and speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual adjustment of ejection timing is used, then the device complexity is low, but the manufacturing precision deteriorates due to difficulty in achieving precise timing coordination at high speeds
Solution Approach 1:
The patent implements a feedback mechanism where the actual ejection timing is measured and compared with the target timing, and the control parameter is automatically adjusted based on the deviation. This closed-loop control enables precise timing coordination at high speeds without requiring complex manual adjustments, resolving the contradiction between manufacturing precision and ease of operation.
2Productivity
If the transport speed is increased to improve productivity, then the productivity improves, but the manufacturing precision deteriorates due to the smaller time window for ejection coordination
Solution Approach 1:
The patent employs dynamic adjustment of the ejection timing control parameter based on the actual transport speed. The system continuously adapts the ejection timing to match the varying transport conditions, enabling precise label application even at high transport speeds where the time window for coordination is small. This dynamic adaptation resolves the contradiction between productivity and manufacturing precision.
3Manufacturing precision
If automatic control with multiple sensors and cameras is implemented, then the manufacturing precision improves, but the device complexity increases
Solution Approach 1:
The patent implements a self-service control mechanism where the system automatically measures the timing deviation and adjusts the control parameter without requiring external intervention or complex coordination between multiple sensors. The single camera and processing unit work autonomously to achieve precise timing, reducing device complexity while maintaining high manufacturing precision.
Data Source
AI summary
In one embodiment, a device for applying label sleeves (110) to objects (100) that are continuously moved along a predetermined trajectory on a transport device (400) comprises an ejection unit (200), a detection unit (300), a storage unit (510), and a control unit (500). The ejection unit is configured to eject a label sleeve, and the detection unit is configured to detect an object moving on the transport device and to output a detection signal indicating the object's position at at least one point in time.The control unit is configured to control the ejection unit and, depending on the detection signal and a control parameter stored in the memory unit, to trigger the ejection of a label sleeve, whereby the position of the object at the start of the ejection process can be changed by altering the control parameter. The device also includes a camera unit (550) configured to record an image sequence showing the ejection of the label sleeve at a first frame rate, and a user interface (520) configured to play back the image sequence at a second frame rate that is slower than the first frame rate and to receive user input that causes a change in the control parameter stored in the memory unit.