Shrink Film Insertion Guide with Air Blowing Ports
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Solution Overview
Problem
The existing methods for automatic insertion of goods into mount-equipped shrink film packages face challenges such as difficulty in physical loading, insufficient quality of insertion, and post-heating shrinkage issues like wrinkles or twists, due to the need for a shrink film with an inner diameter larger than the goods, which leads to deformation and poor appearance.
Innovation Solution
An automatic insertion device is designed with an insertion guide body and slider device that uses air blowing ports to maintain the shrink film in a cylindrical shape, allowing for easy insertion of goods without bending or twisting, by arranging the goods and shrink film package in series and employing air pressure to bulge the film and guide the goods into position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the shrink film inner diameter is made larger than the goods outer diameter to facilitate insertion, then the ease of operation is improved, but the manufacturing precision deteriorates due to deformation and poor appearance after heat shrinkage
Solution Approach 1:
The patent applies preliminary action by pre-bulging the shrink film with air pressure before goods insertion. The bulging section is created in advance to guide the goods during insertion, allowing the film to be temporarily larger than the goods without causing deformation. After insertion and heat shrinkage, the film returns to its proper fitted state, resolving the contradiction between ease of insertion and appearance quality.
2Manufacturing precision
If air blowing ports are added to maintain cylindrical shape during insertion, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The patent applies pneumatics by using air blowing ports to maintain the cylindrical shape of the shrink film during the goods insertion process. Compressed air is supplied through the ports to prevent the film from collapsing or deforming, ensuring the goods are inserted smoothly while maintaining the film's structural integrity and cylindrical shape.
3Strength
If the shrink film is heat-shrunk to cover and support the goods, then the strength is improved, but the object-generated harmful factors worsen due to wrinkles and twists
Solution Approach 1:
The patent applies preliminary action by creating a bulging section in the shrink film before goods insertion. This pre-formed bulge guides the goods during insertion, ensuring they are positioned correctly and the film is evenly stretched. This prevents wrinkles and twists during the heat shrinkage process while maintaining the necessary support strength.
4Manufacturing precision
If the inner diameter margin is reduced to improve appearance, then the manufacturing precision is improved, but the ease of operation worsens due to difficulty in insertion
Solution Approach 1:
The patent applies dynamics by making the shrink film's effective diameter dynamic during the insertion process. Air pressure is used to temporarily expand the film's inner diameter beyond the goods outer diameter, facilitating easy insertion. Once insertion is complete and heat shrinkage begins, the air pressure is released and the film returns to its fitted diameter, ensuring good appearance quality.
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 device ensures correct and efficient insertion of goods into the shrink film package without causing bending or generating wrinkles, maintaining a smooth cylindrical shape during the process, thus enhancing the appearance of the packaged goods.
Implementation Method 1
an inserting preparation operation is executed, in which the insertion guide body is inserted into the shrink film with blowing air for bulging the shrink film figure on the mount equipped shrink film package until facing the goods
Implementation Method 2
the cylindrical shrink film 4 is heated and contracted along to a product shape with bending the mount 3 to the surface side at the position of the bending guide part 6
Data Source
AI summary
In the present invention, an insertion object (300) and backing-equipped shrink film packaging (200) are lined up in series along the insertion direction. An introduction guide body (120) comprises: a head part (121) having an outer diameter smaller than the inner diameter of the a shrink film (220); and an air-blowing port (122) that blows air from the inside thereof toward the outer surface thereof. There are an insertion preparation means in which the introduction guide body (120) is gradually introduced into the shrink film (220) of the backing-equipped shrink film packaging (200) by the sliding movement of a slider device (130), and the shrink film (220) is inflated by air, and an insertion means in which the insertion object (300) is gradually inserted into the inflated shrink film (220), and the insertion object (300) is pulled or pushed to a prescribed position by the insertion means.