Enhanced air inlet and outlet device for packaging bag

Abstract

The invention discloses an enhanced air inlet and outlet device for a packaging bag. The enhanced air inlet and outlet device for the packaging bag comprises a negative pressure air ring adjusting ring. A negative pressure air ring is connected to the upper end of the outer side of the negative pressure air ring adjusting ring in a sleeving way; an adjusting handle is arranged on the side faces of the negative pressure air ring; an air ring is connected onto the negative pressure air ring in a sleeving way; air ring sleeve pipes are connected onto the air ring in a sleeving way; the negative pressure air ring adjusting ring is connected with an air ring body through connecting blocks; an air ring body lower sealing plate is arranged to the air ring body through second inner hexagon screws in a matching way; and air inlet pipe connectors are arranged on the end ports of the air ring body. According to the enhanced air inlet and outlet device for the packaging bag, the air inlet amount of an air inlet is adjusted through air amount adjusting devices, so that the wall thickness of the packaging bag meets the qualification standard; and through manual operation step, an air inlet gap is directly changed, and the enhanced air inlet and outlet device for the packaging bag is simple to operate, quick in response time, and wide in popularization range since the equipment cost is only one-tenth of an imported product.

Description

technical field [0001] The invention relates to the technical field of air inlet and outlet devices for packaging bags, in particular to an enhanced air inlet and outlet device for packaging bags. Background technique [0002] In blow molding, the thickness of the packaging bag to be detected and determined is determined by the wind ring. There are over a hundred air inlets on the wind ring. When producing the packaging bag, the thickness measuring detector will first go around the packaging bag clockwise. It will go around counterclockwise to measure the wall thickness of each section of the packaging bag. When it is found that the wall thickness of a section is not up to standard, it will send a signal to the corresponding air inlet, and then automatically change the air inlet gap of the air inlet through the motor, so that The wall thickness of the product meets the standard. There are two ways to change the air intake of the motor. One is to change the air intake gap by ...

AI Technical Summary

Problems solved by technology

[0002] In blow molding, the thickness of the packaging bag to be detected and determined is determined by the wind ring. There are over a hundred air inlets on the wind ring. When producing the packaging bag, the thickness measuring detector will first go around the packaging bag clockwise. It will go around counterclockwise to measure the wall thickness of each section of the packaging bag. When it is found that the wall thickness of a section is not up to standard, it will send a signal to the corresponding air inlet, and then automatically change the air inlet gap of the air inlet through the motor, so that The wall thickness of the product meets the standard. There are two ways to change the air intake of the motor. One is to change the air intake gap by changing the temperature and using the thermal barrier and shrinkage method. However, this method takes about ten minutes to achieve the adjustment effect. The second method is to directly change the air intake gap through a precise motor, thereby changing the air intake volume, but this method requires very high precision for the motor, and the motor is prone to failure. The air rings of the above two methods need to be imported at present, and the whole set The automatic measurement wind ring system costs about 800,000 yuan, not many companies can accept it, and the scope of popularization is not wide

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