Packaging Machine Sealing Device for Inclined Seal Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing packaging machines often result in inclined seals when sealing paper packaging bags, as the bags are not adequately held during the sealing process, leading to inconsistent and unreliable sealing.
Innovation Solution
A packaging machine design that includes a pair of grips to hold the bag mouth, a moving body to intermittently move the grips, and a paper packaging bag sealing device with a heater, fold guides, and clamping parts to ensure the bag is sealed without inclined seals, using a sealing adhesive agent and folding mechanisms to secure the bag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the paper packaging bag is placed on the conveyor without holding mechanisms, then the sealing process is simple, but inclined seal occurs due to bag instability
Solution Approach 1:
The patent introduces a pair of grips as intermediary holding devices between the conveyor and the paper packaging bag. These grips specifically hold the bag mouth portion during the sealing process, preventing bag displacement and inclined seal formation, while maintaining a relatively simple overall system structure.
2Manufacturing precision
If the bag mouth is held during sealing, then inclined seal is prevented, but the device structure becomes more complex
Solution Approach 1:
The patent divides the holding function into a specific segment - the pair of grips that hold only the bag mouth portion during sealing. This segmented approach provides precise control where needed without adding complexity to the entire sealing system, as the grips are localized and perform a single specific function.
3Reliability
If adhesive agent is applied for sealing, then paper bag sealing is achieved, but additional sealing steps are required
Solution Approach 1:
The patent applies the sealing adhesive agent to the paper packaging bag in advance, before the actual sealing operation. This preliminary action ensures that the adhesive is already in position and can immediately bond when the bag portions are brought together during sealing, eliminating delays associated with adhesive application during the sealing process itself.
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 machine effectively seals paper packaging bags without inclined seals, ensuring reliable sealing through the combination of grip holding, intermittent movement, and precise folding and clamping mechanisms, which also allows for the sealing of resin packaging bags by switching devices.
Implementation Method 1
The paper packaging bag sealing device may include a heater melting the sealing adhesive agent of the paper packaging bag
Implementation Method 2
The heater may have a hot air supply block disposed near the first fold guide. According to this construction, hot air is blown from the hot air supply block against the folded part and the surface side packaging paper to both of which the adhesive agent is applied
Data Source
AI summary
A packaging machine includes a pair of grips holding vicinities of two sides of a bag mouth of a packaging bag, a moving body to intermittently moving the paired grips every one of a plurality of packaging steps, and a paper packaging bag sealing device provided in a section where a sealing step is carried out, for sealing a paper packaging bag to which a sealing adhesive agent has been applied.