Movable Suction Gripper for Precise Separation Sheet Insertion
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Solution Overview
Problem
Existing systems for inserting sheets between rows of folding boxes in receptacles are inefficient and lack precise control over the grasping and positioning of the insert sheets, leading to potential damage and misalignment.
Innovation Solution
A grasping system with a grasping head featuring movable gripping elements and a control unit that senses vertical displacement to ensure accurate placement of insert sheets, using sensors and biasing members to adjust the gripping elements' position and apply vacuum or air pressure for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed grasping head is used to insert sheets, then the structure is simple, but the positioning precision and alignment are poor
Solution Approach 1:
The grasping head is designed with movable gripping elements that can adjust their position dynamically. The gripping elements are connected via holding elements that allow vertical movement, enabling the system to adapt to different sheet positions and achieve precise alignment without requiring a completely complex reconfigurable structure.
Solution Approach 2:
The grasping head is divided into multiple independent gripping elements, each capable of individual adjustment. This segmentation allows each element to be positioned independently for precise sheet grasping and placement, while the overall structure remains manageable through modular design.
2Productivity
If manual insertion is used, then the device complexity is low, but the productivity and consistency are poor
Solution Approach 1:
The system incorporates sensors that automatically detect the presence and position of sheets and boxes. The control unit processes this information and automatically adjusts the gripping elements and timing, enabling the system to self-regulate and operate continuously without manual intervention while maintaining consistent performance.
Solution Approach 2:
Sensors provide real-time feedback about sheet position and receptacle contents to the control unit. This feedback loop enables automatic adjustment of the grasping and insertion process, ensuring consistent positioning and allowing continuous operation without manual monitoring or intervention.
3Productivity
If high-speed insertion is implemented, then the productivity increases, but the risk of damage to sheets and boxes increases
Solution Approach 1:
The system uses sensors to detect the precise position of sheets and boxes before insertion occurs. The control unit uses this information to pre-position the gripping elements and plan the insertion trajectory, ensuring that high-speed insertion occurs only when properly aligned, thereby preventing impact damage while maintaining productivity.
Solution Approach 2:
The gripping elements can dynamically adjust their position and movement speed during the insertion process. This allows the system to operate at high speed when conditions are favorable while automatically slowing down or pausing when precise positioning is required, thus preventing damage while maintaining overall productivity.
4Manufacturing precision
If precise control of grasping head vertical movement is implemented, then the positioning accuracy improves, but the control system complexity increases
Solution Approach 1:
Sensors are integrated to detect the vertical position of the grasping head and provide real-time feedback to the control unit. This feedback mechanism enables precise control of vertical movement through automatic adjustment, achieving high positioning accuracy while keeping the control system manageable through sensor-based automation rather than complex mechanical control mechanisms.
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
Enhances the precision and safety of inserting sheets by ensuring correct height and alignment, minimizing impact on the sheets and boxes, and allowing for non-stop operation.
Implementation Method 1
the sensing arrangement being configured to sense a vertical displacement of the holding elements with respect to the support frame
Implementation Method 2
using sensors and biasing members to adjust the gripping elements' position
Data Source
AI summary
The invention relates to grasping system comprising a grasping head (15) for a sheet transporting device, in particular for transporting an insert sheet to be inserted between rows of folding boxes in a receptacle, the grasping head (15) having at least one support frame (80) and a plurality of aspiration elements (17, 18). The aspiration elements (17, 18) are mounted on holding elements (50) which are received on the support frame (80) so as to be displaceable with respect to the support frame (80).