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Filling valve structure

A filling valve and valve body technology, which is applied in the field of filling valve structure, can solve the problems of closing speed and sealing of the outlet, affecting filling accuracy and working accuracy, etc.

Pending Publication Date: 2019-03-15
GUANGZHOU TECH LONG PACKAGING MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the filling valve with this structure can meet the opening and closing work of the discharge port, if the elastic force changes after the spring works for a period of time, the closing speed and sealing performance of the discharge port will be affected, which will affect the filling process. precision and work accuracy

Method used

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Embodiment Construction

[0008] A filling valve structure, comprising an upper valve body 1, a middle valve body 2 and a lower valve body 3 sequentially connected from top to bottom, the upper valve body, the middle valve body and the lower valve body are provided with interconnected cavities, the lower valve body The valve body is provided with a feed port 5 and a discharge port 6 connected to the cavity, and the valve core 4 is movably installed in the cavity; an annular flexible diaphragm 7 is installed between the valve core and the lower valve body, and the diaphragm The inner and outer sides of the ring are fixedly installed on the valve core and the lower valve body respectively, and the feed port is set on the lower valve body between the diaphragm and the discharge port; the inner wall of the middle valve body extends toward the valve core with a stepped boss 20. The boss is sealed and connected with the valve core through a fixed sealing ring 8. The valve core is fixedly installed with a driv...

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Abstract

The invention discloses a filling valve structure. A communicating cavity is formed in an upper valve body, a middle valve body and a lower valve body, all of which are sequentially connected from topto bottom, a valve element is movably arranged, and an upper air inlet and a lower air inlet are formed in the upper valve body and the lower valve body correspondingly. The lower valve body is provided with a feeding port and a discharging port. The middle valve body is further provided with a boss. A drive block is arranged on the valve body. The boss and the drive block are provided with sealrings, and the cavity is divided into multiple parts. The gas inflows from the upper air inlet or the lower air inlet so as to drive the valve element to close or open the discharging port. When ventilation of the upper air inlet and the lower air inlet is stopped, a certain gap is kept between the end portion of the valve element and the discharging port through a lower drive spring arranged between the drive block and the boss, and slow filling is formed. Through the filling valve structure, the opening and closing precision can be improved, accurate slow filling is formed through the structure characters of various components, the filling precision in the whole filling process is effectively improved, and the work stability is greatly improved.

Description

technical field [0001] The invention relates to filling equipment, in particular to a structure of a filling valve. Background technique [0002] The filling valve is a device installed on the filling machine to fill the liquid into the packaging container. During the filling process, the size of the outlet of the filling valve needs to be changed at different filling stages to control the filling accuracy. . The existing filling valve mainly drives the valve core to move through the spring to close the discharge port. When the discharge port needs to be opened, the compressed air is used to push the valve core to move to the spring, and the end of the valve core leaves the discharge port by compressing the spring. . Although the filling valve with this structure can meet the opening and closing work of the discharge port, if the elastic force changes after the spring works for a period of time, the closing speed and sealing performance of the discharge port will be affect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65B39/00B67C3/26
CPCB65B39/00B67C3/26
Inventor 刘冬华张航天刘炳香
Owner GUANGZHOU TECH LONG PACKAGING MACHINERY CO LTD