Double Belt Press Feeding Device With Adjustable Wrap Angle
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The manual and time-consuming process of feeding substrate tapes into double-belt presses, particularly after roll changes, requires significant personnel and attention, leading to inaccuracies in braking torque control due to the complexity of maintaining a constant angle of wrap and adjusting for changing substrate belt roll diameters.
Innovation Solution
The feeding device allows for the relative adjustment of auxiliary and measuring shafts to establish a predetermined angle of wrap, enabling automated feeding and maintaining a constant angle of wrap between the entry and exit angles, thereby simplifying the feeding process and reducing manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual feeding of substrate tapes is used, then personnel can guide the substrate tapes, but the process becomes time-consuming and requires significant personnel attention
Solution Approach 1:
The substrate tape roll automatically feeds substrate tapes through the system using its own weight and the tension created by the pressing mechanism, eliminating the need for manual feeding operations. The system self-regulates the feeding process through the interaction between the substrate tape roll, measuring shaft, and braking torque control.
2Device complexity
If the angle of wrap around the measuring shaft is maintained constant manually, then braking torque control can be simplified, but this requires complex adjustments for changing substrate belt roll diameters
Solution Approach 1:
The system dynamically adjusts the angle of wrap around the measuring shaft to compensate for changing substrate belt roll diameters. As the roll diameter decreases during unwinding, the angle of wrap automatically changes to maintain constant braking torque, eliminating the need for manual recalibration.
Solution Approach 2:
The force measuring device continuously monitors the tension in the substrate tape and provides feedback to the control system. This feedback enables automatic adjustment of the braking torque to maintain consistent pressing conditions despite variations in roll diameter.
3Extent of automation
If automated feeding is implemented, then manual intervention is reduced, but maintaining a constant angle of wrap becomes more challenging
Solution Approach 1:
The patent replaces manual mechanical adjustment mechanisms with an automated control system that uses force sensing and electronic control to maintain the angle of wrap. The measuring shaft with force measuring device substitutes for manual angle measurement and adjustment 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
This solution facilitates automated and efficient feeding of substrate tapes, ensuring consistent substrate tape tension and reducing the need for manual guidance, thereby improving the operational efficiency and accuracy of the double-belt press system.
Implementation Method 1
a force measuring device with a measuring shaft (16, 17) that can be wrapped around by an associated one of the substrate strips (10, 11), on which a force exerted by the substrate strip is measured during operation - this being proportional to the tensile force acting on the substrate strip
Implementation Method 2
with the braking means being used to set a desired substrate belt tension via a braking torque applied to the substrate belt rolls
Data Source
Figure 1~2
AI summary
The invention relates to a feeding device (3) for feeding several substrate tapes (10, 10'; 11, 11') to a double-belt press (2) for pressing the substrate tapes (10, 10'; 11, 11') together, with several unwinding stations (4, 5) each having an unwinding shaft (6, 7) for receiving a respective substrate tape roll (8, 9) for unwinding the substrate tapes (10, 10'; 11, 11') from the respective substrate tape roll (8, 9), wherein at least one of the unwinding stations (4) comprises a force measuring device with a measuring shaft (16, 17) that can be wrapped around one of the associated substrate tapes (10, 10'; 11, 11'), to which an auxiliary shaft (18, 19) for the associated substrate tape (10, 10'; 11, 11') is assigned, wherein the auxiliary shaft (18, 19) and the measuring shaft (16, 17) relative to each other between a carrying-relative position for the, in particular automatic, carrying of the associated substrate tape (10, 10';11, 11') of the associated substrate tape rollers (8, 9) by means of a distance between the measuring shaft (16, 17) and the auxiliary shaft (18, 19) and a working relative position defining a predetermined and/or predefinable wrap angle (χ) of the associated substrate tape (10, 10'; 11, 11') around the measuring shaft (16, 17) are adjustable by means of relative adjustment drive means.;