Plastic bottle negative pressure detection device

Abstract

The plastic bottle negative pressure detection device of the present invention includes: a base, an air inlet is arranged on the base; a cavity, the cavity is arranged on the base, and the cavity and the base form a pressure chamber , the air inlet is in communication with the pressure chamber; a water container, the water container is arranged above the cavity; a fixing unit, the fixing unit is arranged between the cavity and the water container; and a pneumatic device, the pneumatic device communicates with the air inlet. The plastic bottle negative pressure detection device of the present invention pressurizes the outside of the bottle mouth through the negative pressure device, and according to the requirements, the compressed air enters the pressure chamber through the pressure reducing valve to apply pressure, so that the test sample generates a pressure difference between the inside and outside, and observes the gas overflow in the sample. To determine the sealing performance of the sample.

Description

technical field [0001] The invention belongs to the field of beverage packaging pressure detection equipment, in particular to the negative pressure detection of PET hot-filling beverage bottles. Background technique [0002] At present, PET bottles have become the most important packaging form for hot-filled beverages in my country. Before hot-filling beverages, it is necessary to check whether the bottle mouth and cap are defective, and the sealing of the bottle mouth. If there are defects, air will enter the beverage, or Beverage spilled. affect the quality of the product. Hot-filled products generate negative pressure in the bottle after cooling. The current test method is single, just pressurize the inside of the bottle mouth. For carbonated drinks, etc., inject air pressure into the bottle to reach a certain pressure and maintain the pressure for a period of time. To see if the bottle mouth is defective, and hot-filled beverages are under negative pressure, the best d...

AI Technical Summary

Problems solved by technology

[0002] At present, PET bottles have become the most important packaging form of hot-filled beverages in my country. Before hot-filling beverages, it is necessary to detect whether there are defects in the bottle mouth and cap, and the sealing of the bottle mouth. If there are defects, air will enter the beverage, or drink spill

affect the quality of the product

Hot-filled products generate negative pressure in the bottle after cooling. The current test method is single, just pressurize the inside of the bottle mouth, and inject air pressure into the bottle for carbonated beverages, etc., to reach a certain pressure, and keep the pressure for a period of time. Check whether the mouth of the bottle is defective, while hot-filled beverages are under negative pressure. The best detection method is to pressurize the outside of the bottle mouth. This invention is aimed at the external pressure of the bottle mouth. Whether it will enter the device of the beverage

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