Steady-flow conveying system

Abstract

The invention discloses a steady-flow conveying system. The steady-flow conveying system comprises a first pump body, and further comprises a second pump body, a connecting channel and a steady-flow cavity, wherein the connecting channel comprises a first connecting channel and a second connecting channel; a steady-flow inlet and a steady-flow outlet are formed in the steady-flow cavity; the inlet of the first connecting channel is connected to the outlet of the first pump body; the outlet of the first connecting channel is connected to the steady-flow inlet; the steady-flow outlet is connected to the inlet of the second connecting channel; and the outlet of the second connecting channel is connected to the inlet of the second pump body. The steady-flow conveying system can continuously and stably output plaster, is uniform in plaster coating, is convenient and quick in replacing a filter screen, and is convenient in cleaning parts.

Description

technical field [0001] The invention relates to a fluid delivery device, in particular to a device for realizing constant flow delivery for fluids with high viscosity and poor fluidity. Background technique [0002] Plaster is a kind of external use of traditional Chinese medicine. Vegetable oil or animal oil is added to boil it into a gel-like substance, which is applied to one side of the substrate such as cloth, paper or leather, and sealed with release paper. Due to the high viscosity and poor fluidity of the plaster, at present, the gel-like plaster is often placed in a special container during automatic plaster processing, and a certain amount of plaster is transported to the glue applicator by a gear pump with strong self-priming force. Then apply the plaster to the base material, and then proceed to the next process until the plaster product is processed. Therefore, whether the output flow rate of the gear pump is stable directly affects whether the plaster is evenl...

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Problems solved by technology

Therefore, whether the output flow rate of the gear pump is stable directly affects whether the plaster is evenly applied on the plaster product, especially for the plaster product with a thin plaster layer, the output flow rate of the gear pump fluctuates slightly, and it is easy to cause uneven plaster application and uneven plaster volume. The phenomenon of reaching the target

At present, the special container for placing the plaster and the gear pump are mainly placed in the lower position of the gear pump and the side position of the gear pump. When the gear pump is in the lower position, due to the continuous change of the liquid level of the plaster in the special container, the inlet pressure of the gear pump changes from large to small, resulting in the output of the gear pump. The flow rate is unstable; when the gear pump is on the side, if the plaster volume in the special container is low, the gear pump occasionally cannot eat the plaster, the output flow of the gear pump fluctuates, and the glue output of the glue head fluctuates. , it is very easy to produce defective plaster products; and the gap between the glue applicators is often small, and it is very easy for large particles of drugs or impurities to block the glue applicator, forming defective plaster products; only adding filters before and after the gear pump will not only cause The pressure before and after the filter changes, the output flow of the gear pump changes accordingly, and the filter area of ​​the conventional filter is small, so it needs to be replaced frequently

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