Rotating Hot Sealing Wheel for Air Cushion Machine
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional air cushion machines face issues with low energy utilization, temperature fluctuations, and reduced productivity due to inefficient heat transfer and sliding friction during the hot sealing process, leading to poor sealing quality and short equipment lifespan.
Innovation Solution
A heating apparatus with a hot sealing wheel featuring transmission wheels, electrode plates, conductive springs, and a silicone coating, where heating sheets are enclosed within the wheel to enhance heat retention and transfer, and carbon brushes facilitate rotation to minimize friction, ensuring uniform temperature and improved sealing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heating apparatus heats the conveyor to seal the plastic film, then the plastic film can be sealed, but the flexible conveyor is subjected to force and heat, easy to be damaged upon conveyance, and therefore, the life thereof is not long
Solution Approach 1:
The patent introduces a hot sealing wheel as an intermediary component between the heating source and the plastic film. The hot sealing wheel rotates to contact the film, transferring heat through rolling motion rather than sliding friction. This mediator approach protects the conveyor from direct heat exposure and mechanical stress, extending its life while maintaining heating efficiency.
Solution Approach 2:
The patent transforms the static conveyor heating system into a dynamic rotating hot sealing wheel system. The wheel rotates during the sealing process, converting static friction into dynamic rolling motion. This reduces wear on the conveyor and extends component life while maintaining effective heat transfer to the plastic film.
2Productivity
If the heating apparatus heats the conveyor to seal the plastic film, then the plastic film can be sealed, but the heat transfer efficiency is low, the heating speed is slow such that the conveyance speed of the plastic film cannot be too fast, and the productivity is thus affected
Solution Approach 1:
The rotating hot sealing wheel creates dynamic contact with the moving plastic film, maintaining consistent heat transfer pressure and improving thermal coupling. The rotation speed can be synchronized with the conveyance speed, ensuring optimal heating efficiency even at higher production speeds, thereby reducing energy loss while increasing productivity.
Solution Approach 2:
The patent changes the heating parameter delivery method from static conveyor heating to dynamic wheel rotation heating. The rotating wheel provides concentrated, movable heat source that tracks with the film speed, improving heat transfer efficiency and enabling faster conveyance without sacrificing sealing quality.
3Reliability
If a hot sealing wheel is used to heat a plastic film in a direct contact way, then the plastic film can be sealed, but the hot sealing wheel is static, sliding friction will be generated between the plastic film and the static hot-sealing wheel during the moving of the plastic film, causing the plastic film to be stuck to the hot-sealing wheel, and the hot sealing quality is thus affected
Solution Approach 1:
The patent converts the static hot sealing wheel into a rotating one. During operation, the wheel rotates in the same direction as the plastic film movement, creating rolling contact instead of sliding friction. This dynamic motion prevents the film from sticking to the wheel surface while maintaining effective heat transfer, thereby improving sealing quality and reducing harmful friction.
Solution Approach 2:
The patent converts the potentially harmful sliding friction into beneficial rolling motion. By rotating the hot sealing wheel synchronously with the film conveyance, the relative motion between wheel and film is minimized, transforming what would be damaging sliding friction into gentle rolling contact that maintains sealing quality without causing film adhesion or wheel wear.
4Productivity
If the moving speed of the plastic film is increased to improve productivity, then the production efficiency is improved, but the sliding friction increases causing the plastic film to be stuck to the static hot-sealing wheel
Solution Approach 1:
The rotating hot sealing wheel moves synchronously with the increased film speed, maintaining optimal contact conditions at all production speeds. The wheel rotation creates rolling motion that prevents sticking even at high conveyance rates, allowing productivity improvement without the harmful effects of sliding friction that plague static wheel systems.
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 achieves high energy utilization, stable and uniform temperature, reduced environmental influence, and enhanced sealing quality, extending equipment life while simplifying assembly and maintenance, thus improving production efficiency and cost-effectiveness.
Implementation Method 1
heating sheets are configured inside the hot sealing wheel; each surface of the heating sheet is in electric connection with a conductive spring; another end of the conductive spring is configured with a carbon brush in rotational contact with the electrode plate
Implementation Method 2
Heat is transmitted outward gradually from the inside of the hot sealing wheel by configuring the heating sheets inside the hot sealing wheel
Implementation Method 3
the conductive spring and carbon brush are configured inside the fixing guide cylinder... the carbon brush in rotational contact with the electrode plate... causing the transmission wheel to rotate
Data Source
AI summary
A heating apparatus for an air cushion machine includes a hot sealing wheel, wherein a transmission wheel is respectively configured on two sides of the hot sealing wheel, an electrode plate is configured on an outer side of each transmission wheel, a guide cylinder seat is configured between the transmission wheel and hot sealing wheel, fixing guide cylinders are projected from the guide cylinder seat, the fixing guide cylinders are passed through the transmission wheel to be in electric contact with the electrode plate, heating sheets are configured inside the hot sealing wheel, each surface of the heating sheet is in electric connection with a conductive spring, another end of the conductive spring is configured with a carbon brush in rotational contact with the electrode plate, and the conductive spring and carbon brush are configured inside the fixing guide cylinder, thereby achieving high energy utilization, good temperature uniformity.