Unwinding Device Movable Positioning Block for Sealing Material Roll Alignment
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Solution Overview
Problem
Existing unwinding devices for sealing machines face challenges in reliably positioning sealing material rolls, leading to misalignments that negatively impact production quality and efficiency.
Innovation Solution
An unwinding device with a movable positioning block and rotatable unwinding rod, equipped with a displacement means such as a spindle and motor, allows for precise adjustment and repositioning of the sealing material roll, incorporating a sensor and control unit for automatic alignment and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed positioning system is used for the unwinding rod, then the structure is simple, but the positioning accuracy and repositioning capability deteriorate
Solution Approach 1:
The patent implements a movable positioning block that can be displaced along the frame using a displacement means (such as a motor-driven mechanism). This allows the unwinding rod to be repositioned dynamically during operation, resolving the contradiction by making the positioning system adjustable rather than fixed, thereby achieving both positioning accuracy and repositioning capability without excessive structural complexity.
Solution Approach 2:
The positioning block serves as an intermediary component between the frame and the unwinding rod. It provides a movable mounting platform that can be precisely positioned and adjusted, allowing the unwinding rod to be accurately located while maintaining a relatively simple overall structure. The displacement means acts as another intermediary to achieve the movement of the positioning block.
2Reliability
If manual positioning adjustment is used, then the device complexity is low, but the positioning reliability and alignment accuracy deteriorate
Solution Approach 1:
The patent incorporates sensors that detect the position of the unwinding rod and provide feedback to a control unit. The control unit processes this information and automatically adjusts the positioning block's location to achieve precise alignment. This closed-loop feedback system ensures high positioning reliability and alignment accuracy while managing device complexity through automated control.
Solution Approach 2:
The patent replaces manual mechanical positioning with an automated system combining displacement means (such as motor-driven mechanisms) and control electronics. This substitution eliminates manual intervention, improving positioning reliability and consistency while the automated control system manages the increased device complexity through programmed operations.
3Adaptability or versatility
If the unwinding rod position is fixed relative to the frame, then the alignment is stable, but the adaptability for repositioning deteriorates
Solution Approach 1:
The patent creates a dynamically adjustable positioning system where the positioning block can be moved along the frame while maintaining stable alignment during operation. The system allows repositioning when needed (improving adaptability) while providing stable mounting during the unwinding process (maintaining alignment stability), thus resolving the contradiction between adaptability and stability.
Solution Approach 2:
The patent enables changes in the positional parameters of the unwinding rod by moving the positioning block to different locations along the frame. This parameter adjustment capability provides repositioning flexibility (adaptability) while the system maintains stable alignment at each positioned location, resolving the contradiction between repositioning capability and alignment stability.
Data Source
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AI summary
An unwinding device (110) for a sealing machine (100), the unwinding device comprising a frame (215), a positioning block (211), movably connected to the frame (215) along a movement direction (D), and an unwinding rod (212), rotatably mounted at the positioning block (211) around a rotational axis (R) that is parallel to the movement direction (D), the unwinding rod (212) for accommodating a sealing material roll (214), wherein the unwinding device (110) further comprises a displacement means (216, 217) that is configured to displace the positioning block (211) relative to the frame (215).