Sealing Machine Transportation Structure for Elongated Bags
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vacuum sealing machines are inefficient in sealing elongated plastic bags due to a fixed press bar length, requiring users to replace bars of varying lengths, leading to complex operations and increased machine space requirements.
Innovation Solution
A sealing machine with a transportation structure comprising an upper and lower conveying member, heating rails, and rollers that clamp, heat, and seal elongated plastic bags, allowing for adjustable sealing of bags of different sizes without the need for multiple press bars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-length press bar is used in conventional vacuum sealing machines, then the machine structure is simple and compact, but it cannot seal elongated plastic bags and requires replacing press bars of different lengths, leading to complex operations
Solution Approach 1:
The patent applies the dynamics principle by replacing the fixed-length press bar with a movable arm that can swing between different positions. The movable arm is driven by a driving motor to adjust its position dynamically, allowing the sealing head to reach different locations along the elongated plastic bag. This dynamic adjustment mechanism enables the machine to seal bags of varying lengths without requiring multiple press bars of different fixed lengths, thus resolving the contradiction between adaptability and device complexity
Solution Approach 2:
The movable arm serves multiple functions: it acts as both the sealing press bar and the positioning mechanism for different bag lengths. By integrating the positioning and sealing functions into a single movable component, the system achieves multi-functionality, eliminating the need for multiple specialized press bars and reducing operational complexity while maintaining versatility
2Adaptability or versatility
If press bars of longer length are used to seal elongated plastic bags, then the sealing capability is improved, but the receiving space of the machine increases
Solution Approach 1:
The movable arm swings between a retracted position and an extended sealing position, allowing the machine to accommodate elongated bags without permanently increasing its footprint. When not in use, the arm returns to its retracted position, minimizing the machine's receiving space. This dynamic positioning enables the machine to handle long bags while maintaining a compact overall structure
Solution Approach 2:
The sealing mechanism is divided into a stationary base and a movable arm that can be positioned as needed. This segmentation allows the machine to have a compact base structure while the movable arm extends only when required for sealing, effectively separating the functional sealing space from the permanent machine footprint
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
Enables efficient sealing of elongated plastic bags by clamping and heating the bags between rollers, ensuring consistent sealing regardless of bag size, simplifying the operation and reducing the need for multiple press bars, while maintaining a compact machine design.
Implementation Method 1
the opening of the elongated plastic bag is melted by the at least one electric bar in the slot
Implementation Method 2
the elongated plastic bag is pressed and sealed by the upper roller and the lower roller
Data Source
AI summary
A sealing machine with a transportation structure has: a seal unit including an upper transporting set, a lower transporting set, a heating set, and a driving motor. The upper transporting set has a first conveying member, the lower transporting set has a second conveying member driven. The upper transporting set has an upper roller, and the lower transporting set has a lower roller for matching with the upper roller. The heating set has two heating rails and at least one electric bar, and each heating rail horizontally extends at a convey stork of the first conveying member and the second conveying member. Between the two heating rails is defined a slot. An outlet end of the slot corresponds to a pressing surface of the upper roller and the lower roller, the each heating rail has a groove so as to receive the at least one electric bar.