Marking Apparatus Transverse Position Compensation
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Solution Overview
Problem
Existing marking technologies face challenges in maintaining marking quality and accuracy when objects, such as paper, carton, or plastic foil, are difficult to guide in the transverse direction, leading to potential displacement and reduced marking quality.
Innovation Solution
A method and apparatus that utilize a plurality of marking devices and sensor devices to determine and adapt to the object's transverse position, activating the appropriate subset of marking devices to compensate for displacement, ensuring accurate marking without mechanical movement of the devices, and allowing for a wider marking width by having more devices than necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the object is not properly guided in the transverse direction during the marking operation, then the marking quality is reduced and/or the marking is displaced, but mechanical guidance mechanisms increase device complexity and may not work for all materials
Solution Approach 1:
The patent replaces mechanical guidance systems with an optical sensing system. Sensor devices detect the actual transverse position of the object, and this position information is used to dynamically select which marking devices should be activated. This substitution eliminates the need for complex mechanical guidance while maintaining marking accuracy.
Solution Approach 2:
The system changes the operational parameters of the marking devices based on detected object position. Instead of mechanically moving the marking head or guiding the object, the system changes which marking devices are active (on/off state) based on the transverse position detected by sensors, thereby adapting to position variations.
2Area of stationary object
If more marking devices are provided than necessary to extend marking width, then the possible marking width is extended, but the device complexity and cost increase
Solution Approach 1:
The marking system is divided into multiple independent marking devices arranged in the transverse direction. Each marking device can be independently activated or deactivated based on the object's position. This segmentation allows the system to cover a wider marking area while only activating the necessary subset of devices for each specific marking task.
Solution Approach 2:
The system provides more marking devices than the minimum necessary for a single marking position, creating an 'excessive' array of devices. However, only a partial subset of these devices is activated at any given time based on sensor feedback, thereby achieving extended marking capability without permanently requiring all devices to be active.
Data Source
AI summary
The invention relates to a method for applying a marking on an object, wherein the object is moved in an advance direction relative to a marking head comprising a plurality of marking devices and the marking is applied on the object by means of the plurality of marking devices during the relative movement between the object and the marking head. For applying the marking on a predetermined marking area relative to a transverse direction, which extends transversely to the advance direction, a position of the object in the transverse direction is determined and based on the determined position of the object in the transverse direction a first number of marking devices is deactivated and a second number of marking devices is activated, wherein the marking is applied on the object by the second number of marking devices. The invention also relates to a marking apparatus for applying a marking on an object.