Sideways-Actuated Transverse Sealing Jaws for Compact Packaging
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Solution Overview
Problem
Existing transverse sealing devices for packaging materials face inefficiencies in moving sealing jaws into a sealing position, particularly in terms of compactness and dynamic behavior, as they often rely on direct pushing movements which can limit the design's flexibility and compactness.
Innovation Solution
A transverse sealing device with a movement unit that is arranged substantially sideways to the sealing jaws, allowing for a direct pulling force to move the jaws into a sealing position, utilizing a combination of torque-resistant linear bushings and guide elements to facilitate horizontal and vertical movements, enabling a compact and flexible design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If direct pushing movement is used to move sealing jaws into sealing position, then the sealing force can be effectively applied, but the device compactness and design flexibility are limited
Solution Approach 1:
The patent inverts the conventional pushing movement approach by implementing a pulling movement mechanism. The movement unit is arranged sideways relative to the sealing jaws and connected via linkages to pull the sealing jaws into the sealing position horizontally, then vertically. This inversion allows for a more compact design while maintaining effective sealing force application.
Solution Approach 2:
The patent introduces a two-dimensional movement path for the sealing jaws: first horizontal movement via the sideways-arranged movement unit, then vertical movement into the sealing position. This dimensional approach allows the movement unit to be compactly arranged sideways while still achieving the necessary sealing jaw displacement, resolving the contradiction between compactness and force application.
2Device complexity
If movement unit is arranged centrally or above sealing jaws, then the structure is simplified, but the dynamic behavior and operational flexibility are reduced
Solution Approach 1:
The patent implements a dynamic movement mechanism where the movement unit is arranged sideways relative to the sealing jaws and connected through linkages that enable both horizontal and vertical movement. This dynamic arrangement provides operational flexibility and adaptability while maintaining reasonable structural complexity, as the sideways positioning allows for easier integration with the sealing jaw assembly.
3Force
If sealing jaws are moved by pushing from above, then the sealing force is direct, but the device length in vertical direction increases
Solution Approach 1:
The patent inverts the conventional vertical pushing approach by implementing horizontal pulling movement followed by vertical movement. The movement unit is arranged sideways and pulls the sealing jaws horizontally into position, then the sealing jaws move vertically into the sealing position. This inversion reduces the device's vertical length while maintaining direct sealing force application.
Solution Approach 2:
The patent introduces horizontal movement as an intermediate step before vertical sealing movement. The movement unit arranged sideways provides horizontal displacement, after which the sealing jaws complete their vertical movement into the sealing position. This two-dimensional approach reduces the overall vertical length requirement while preserving direct sealing force efficiency.
Data Source
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AI summary
The invention is based on a transverse sealing device (14a -14g) for sealing a pack or a packaging material, comprising at least two sealing jaws (18a – 18g, 20a – 20g), comprising at least one movement unit (36a - 36g) to move the at least two sealing jaws (18a – 18g, 20a – 20g) horizontally relative to each other and comprising a guide unit (82a – 82g) to guide the at least two sealing jaws (18a – 18g, 20a – 20g) during a movement, wherein the movement unit (36a – 36g) is arranged at least substantially completely sideways relative to the at least two sealing jaws (18a – 18g, 20a – 20g), at least viewed in a direction parallel to a horizontal movement axis (38a – 38g) of the guide unit (82a – 82g). It is proposed that the at least two sealing jaws (18a – 18g, 20a – 20g) are linearly movably supported along the direction parallel to the horizontal movement axis (38a – 38g) of the guide unit (82a – 82g).