Quantitative filling system and filling method thereof

Abstract

The invention discloses a quantitative filling system and a filling method thereof, and belongs to the field of automatic packaging. The system comprises a material box, discharging assemblies and a pressure assembly, wherein the material box is a closed cavity and is suitable for containing material liquid; the plurality of discharging assemblies are arranged at the bottom of the material box; the pressure assembly comprises an air source, an air path used for communicating the air source with the material box, a pressure release valve arranged on the material box and communicating with the air path, and a pressure stabilizing sensor assembled in the material box. The pressure in the material box is controlled to be stable through the pressure assembly, so that it is guaranteed that the flow speeds of all filling heads are consistent, and the filling precision reaches the standard; and when air inflation is needed, a pressure gauge can provide a signal to the pressure source to provide air pressure, after the pressure in the tank reaches the standard, air inflation is stopped, the pressure stabilizing meter is used for controlling, excessive pressure can be automatically discharged, stability is guaranteed, and the filling precision is high.

Description

technical field [0001] The invention belongs to the field of automatic packaging, in particular to a quantitative filling system and a filling method thereof. Background technique [0002] At present, the production of packaging lines is becoming more and more automated, and the market competition is fierce. The importance of product quality is self-evident. The dosage of liquid filling is also one of the most important indicators, especially for some products with high temperature. , High viscosity material filling. [0003] When daily packaging companies encounter materials with different characteristics when producing products, they all use the same filling system of the machine. Due to some disadvantages of the filling system, such as some machines that fill by weighing, due to the weight of the packaging materials There is a deviation. During the filling process, the weight brought by the liquid flowing into the bottle jumps to the material already in the air, as well ...

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Problems solved by technology

[0003] When daily packaging companies encounter materials with different characteristics when producing products, they all use the same filling system of the machine. Due to some disadvantages of the filling system, such as some machines that fill by weighing, due to the weight of the packaging materials There is a deviation. During the filling process, the weight brought by the liquid flowing into the bottle jumps to the material already in the air, as well as factors such as the response time and accuracy level of the load cell, which will cause a deviation between the filled material and the actual preset weight. , and there are many uncontrollable factors. Also, the method of piston feeding will also cause periodic dosage problems due to the actual error in the cylinder and the accumulated error after long-term work.

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