Filling device

Abstract

The invention discloses a filling device. The filling device comprises a filling valve and a power component driving the filling valve to move. The filling valve is installed on the power component. The filling valve is provided with a valve body, a rotary valve, a piston and a piston rod. A feeding channel, a first auxiliary channel, a measuring channel, a second auxiliary channel, a discharging channel and an operation cavity are arranged in the valve body. In the filling valve, the center line of the feeding channel intersects the center line of the operation cavity, and the center line of the discharging channel is parallel to the center line of the operation cavity. According to the filling device, by optimizing the structure of the filling valve, a quantitative suction path and a quantitative extruding path of the filling valve are separated, the discharging channel is located in the extension direction of the center line of the rotary valve, and therefore the filling valve is not influenced by the components of the filling valve in the discharging direction; and hence the problem that in a filling device, components involved in discharge interfere with a piston and other related components is thoroughly solved.

Description

technical field [0001] The invention relates to a filling device. Background technique [0002] In the field of filling based on quantitative filling technology, quantitative inhalation-quantitative extrusion is usually used to achieve quantitative filling. For example, the Chinese patent publication number is CN101767760A, which discloses a switching valve for filling and discharging food. The inside of the valve body is provided with a spool and a plunger pump piston. The valve body is provided with a feed port and a discharge port. There is an L-shaped channel inside the piston of the plunger pump (the channel includes a switching connection port). In this technical scheme, the feed port and the discharge port are in the same straight line direction, that is, the feed port and the discharge port are separated by 180 degrees relative to the circumferential direction around the center line of the valve core, and the piston of the plunger pump is located at the center of th...

AI Technical Summary

Problems solved by technology

[0003] Since the body volume of the filling equipment using this switching valve must be controlled within a limited range, and the operation form is fixed by relying on gravity to place the object to be operated in the container, the filling equipment equipped with this switching valve in the prior art When the filling device is in use, a long feeding pipe is provided at the discharge port of the switching valve and extends to other positions with sufficient space in the filling device, so that the parts for quantitatively outputting materials will not interfere with the piston of the plunger pump and its components. Interference of relevant components makes the filling device using the switching valve of the above technical solution have a large volume and is only suitable for the operation range of filling in a free-falling manner under the action of gravity, that is, external filling.

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