Filling valve for weighing filling machine

Abstract

The invention discloses a filling valve for a weighing filling machine. The filling valve comprises a valve body; a flow port sleeve communicates with the valve body; a valve core capable of moving upand down is arranged in the valve body and the flow port sleeve; a flow guide cone is arranged at the lower end of the valve core; and the upper end of the valve core is connected with a double-stroke cylinder. The valve core of the double-stroke cylinder is controlled to drive the flow guide cone to move up and down, so that valve opening and valve closing of the filling valve, slow filling, andfine adjustment of the opening size of the valve can be realized. According to the invention, slow filling of the filling valve and micro adjustment of the opening size of the valve can be realized;adjustment is sensitive and convenient; high-precision control of the flow rate and the flow rate of the filling valve can be realized; control precision reaches milligrams; uniformity of capacity offilling products is improved; product quality is improved; and meanwhile, the raw material budget and the filling amount are conveniently calculated. The sealing property of the valve can be improved;pollution risk of filling liquid can be avoided; and the service life of equipment can be prolonged. Splashing can be prevented; pollution on equipment and products can be avoided, and product quality can be ensured.

Description

technical field [0001] The invention relates to a filling valve, in particular to a filling valve for a weighing filling machine, belonging to the technical field of filling equipment. Background technique [0002] The weighing filling machine belongs to a kind of equipment in the field of mechanical filling. The weighing filling machine mainly includes the filling valve part and the weighing device. When filling, when the filling liquid in the bottle filled by the weighing device reaches the required When filling volume, close the filling valve. [0003] In the prior art, traditional filling valves are generally used for weighing filling machines. Traditional filling valves have the following problems in actual use: [0004] 1. Since the traditional filling valve basically only has two states of valve opening and closing, the flow rate and flow rate are fixed during filling. Such a filling valve can only control the opening and closing of the valve. When the scale shows th...

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Problems solved by technology

[0004] 1. Since the traditional filling valve basically only has two states of valve opening and closing, the flow rate and flow rate are fixed during filling. Such a filling valve can only control the opening and closing of the valve. When the scale shows that it reaches the required After filling the volume, due to the large flow and velocity of the valve opening, and the fact that it takes a certain amount of time to close the filling valve, the filling volume will be uneven, which will affect the uniformity of the filled product. It is difficult to accurately calculate the raw material budget and filling volume; however, with the current increase in product output, the control requirements for the volume after filling are becoming more and more precise. It is obvious that the traditional filling valve can no longer meet the strict and high precision control

[0005] 2. The traditional filling valve has poor sealing effect and is prone to leakage, which not only pollutes the filling liquid, affects product quality, but also affects the service life of the equipment

[0006] 3. When the filling bottle is close to full, the flow rate of the traditional filling valve is relatively high, which is prone to liquid splashing, and the liquid splashed outside the bottle is easy to pollute the equipment, and also pollute the filled product, affecting product quality

[0007] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

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