Calibration Device for Plastic Profile Strand Deformation
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Solution Overview
Problem
Existing methods for producing calibrated plastic profiles with shape elements are complex and require separate extrusion and calibration of profile strands, followed by connection through clips or rolling joints, which complicates the production process.
Innovation Solution
A calibration device and procedure that allow for the elastic and/or plastic deformation of extruded plastic profile strands within the calibrator, enabling the connection of shape elements during calibration, thus simplifying the production of calibrated plastic profiles with integrated shape elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate profile strands are extruded and calibrated, then the production of calibrated plastic profiles with form-locking elements is possible, but the production process becomes complex and requires additional connection steps
Solution Approach 1:
The patent merges the calibration of multiple profile strands and the formation of form-locking elements into a single integrated process within one calibrator. Multiple profile strands are fed into separate inlet openings of the same calibrator, and the calibrator simultaneously calibrates all strands while deforming them to create interlocking form-locking elements, eliminating the need for separate connection steps.
Solution Approach 2:
The patent performs the deformation and connection of form-locking elements during the calibration process itself, before the profile strands are fully cooled and hardened. By deforming the profile strands while they are still warm and pliable within the calibrator, the form-locking elements are pre-formed and connected in their final positions, simplifying the overall production process.
2Ease of manufacture
If profile strands are connected after calibration and cooling, then the form-locking elements can be assembled, but additional connection steps are required
Solution Approach 1:
The patent combines the calibration process with the connection process by simultaneously calibrating multiple profile strands and deforming them to form interlocking form-locking elements within the same calibrator. This integration eliminates the need for separate post-calibration connection steps, thereby improving production efficiency while maintaining ease of manufacture.
Solution Approach 2:
The patent ensures continuous productive action by performing calibration and connection operations in a single uninterrupted process. The calibrator continuously receives multiple profile strands, calibrates them, and deforms them into connected form-locking elements without requiring intermediate stopping or separate assembly operations, thus maximizing production efficiency.
3Productivity
If form-locking elements are deformed while soft in the calibrator, then connected profile strands can be produced, but the calibrator design becomes more complex
Solution Approach 1:
The patent divides the calibrator into multiple independent channel regions, each with its own inlet opening for receiving profile strands. The calibrator body is segmented into these separate pathways that guide and deform the profile strands independently, allowing simultaneous processing of multiple strands while maintaining a manageable design through modular channel structures.
Solution Approach 2:
The patent applies different structural characteristics to different regions of the calibrator. Each channel region is specifically designed with local deformation zones that provide the necessary allowance for elastic and plastic deformation of form-locking elements at specific locations, while other regions maintain simpler guiding structures. This localized differentiation enables efficient multi-strand processing without requiring complex design throughout the entire calibrator.
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
The solution enables the production of calibrated plastic profiles with shape elements where the elements are already connected at the output of the calibrator, improving the production efficiency and reducing complexity compared to traditional methods.
Implementation Method 1
By elastically and/or plastically deforming the areas of extruded plastic profile strands that form the form-locking elements while they are still soft within the calibrator
Implementation Method 2
By elastically and/or plastically deforming the areas of extruded plastic profile strands that form the form-locking elements while they are still soft within the calibrator
Data Source
Figure 1~2d
Figure 3a~4d
Figure 5a~6
AI summary
A calibration device and a method for calibrating an extruded plastic profile strand are taught, with which a plastic profile can be calibrated in such a way that two complementary elements of the plastic profile to be calibrated (50), which are initially separated perpendicular to the direction of movement (F) and do not form a positive fit, form a positive fit in the calibrated state at the output side (33) in cross-section perpendicular to the direction of movement (F).