Plastic bottle negative pressure detecting device

A negative pressure detection device, a technology for plastic bottles, applied in the direction of detecting the appearance of fluid at the leak point, using liquid/vacuum for liquid tightness measurement, etc., can solve the problems of air entering the beverage, beverage overflow, and single testing method.

Active Publication Date: 2014-02-05
上海紫日包装有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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 pres...

Method used

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  • Plastic bottle negative pressure detecting device
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Embodiment Construction

[0019] The plastic bottle negative pressure detection device of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, the plastic bottle negative pressure detection device of the present invention includes: a base 1, on which an air inlet 2 is arranged; a cavity 3, the cavity 3 is arranged on the base 1, and the air inlet 2 communicates with the cavity 3; The water container 4, the water container 4 is arranged above the cavity 3; and the quick clamp 5 is arranged on both sides of the bottle mouth 17 to be tested. A sealing ring 6 is also provided on the contact surface between the cavity 3 and the water container 4 and the bottle mouth 17 to be tested.

[0021] The pneumatic device communicates with the air inlet, and the pneumatic device includes an air compressor 7, a safety valve 8, an air storage tank 9, a filter 10, a pressure reducing valve 11, a flow control valve 12, a pressu...

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Abstract

The invention relates to a plastic bottle negative pressure detecting device which comprises a base, a cavity, a water container, a fixing unit and a pneumatic device. An air inlet hole is formed in the base, the cavity is formed in the base, a pressure applying cavity is formed by the cavity and the base, the air inlet hole is communicated with the pressure applying cavity, the water container is arranged above the cavity, the fixing unit is arranged between the cavity and the water container, and the pneumatic device is communicated with the air inlet hole. According to the plastic bottle negative pressure detecting device, pressure is applied to the exterior of a bottle opening through a negative pressure device, compressed air enters the pressure applying cavity through a reducing valve to apply pressure according to requirements, a tested sample has the internal-external differential pressure, the air overflowing conditions of the tested sample are observed, and the sealing performance of the tested sample is accordingly judged.

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-fill beverage bottles. Background technique [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 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, 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 pr...

Claims

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Application Information

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IPC IPC(8): G01M3/10
Inventor 郭亮
Owner 上海紫日包装有限公司
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