Filling head for liquid filling machine

Abstract

The invention discloses a filling head for a liquid filling machine. The machine comprises a main body, an air cylinder and a filling needle cylinder. A connector is arranged at the upper end of the main body, the bottom end of the air cylinder is in threaded connection with a connecting flange, a water inlet pipe is arranged on one side of the main body, and a connecting block is arranged at thebottom end of the main body. A placing groove is formed in one side of the interior of the connecting block, and a limiting groove is formed in the other side. A rotating shaft is arranged at the topend of the placing groove, a leakage-proof plate is rotatably connected to the surface of the rotating shaft, and torsional springs are arranged in the middles of the surfaces of the rotating shaft and the leakage-proof plate. According to the filling head for the liquid filling machine, the main body is connected with the filling needle cylinder through the connecting block, when the filling headstops working at the moment a filling bottle body is filled up, the leakage-proof plate rotates upwards under the action of elastic force of the torsional spring, the top end of a limiting groove isclamped by a floor, a filling channel is closed, and residual liquid is prevented from dripping when filling is stopped, so that material waste is reduced, and equipment is protected from being polluted by the residual liquid.

Description

technical field [0001] The invention relates to the technical field of filling machines, in particular to a filling head for a liquid filling machine. Background technique [0002] Filling machines are mainly a small category of products in packaging machines. From the perspective of packaging materials, they can be divided into liquid filling machines, paste filling machines, powder filling machines, and particle filling machines; from the degree of automation of production It is divided into semi-automatic filling machine and fully automatic filling production line. Recently, with the QS certification of food, edible oil manufacturers have begun to pay attention to product quality and packaging, so the oil filling machine has a prominent position in the filling machine. [0003] After the filling head of the existing filling machine finishes filling the material, there will still be some residual material dripping down, forming liquid leakage, which not only causes materi...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a filling head for a liquid filling machine to solve the problem of dripping residual material and forming liquid leakage in the above background technology, which not only causes waste of materials but also pollutes equipment

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