Melt shunting sand cup in assembly

Abstract

The invention belongs to the technical field of melt filtering sand cup appliances and in particular relates to a melt shunting sand cup in an assembly. The melt shunting sand cup in an assembly comprises a cup body, wherein an inner cavity is formed in the middle of the cup body, a cylindrical body is arranged at the middle position of the inner cavity, the upper end of the cylindrical body protrudes out of the inner cavity, and the upper end surface of the cylindrical body is a spherical surface body; melt outlets are distributed at the bottom of the inner cavity by taking the cylindrical body as a center, a filter screen is arranged above the melt outlets at the bottom of the inner cavity, metallic sands are paved on the filter screen, a blocking net is arranged at the upper part of the metallic sands, and the filter screen, the metallic sands and the blocking net are fastened together under high pressure. The melt shunting sand cup in an assembly has the beneficial effects that the melts are distributed uniformly when in shunting, and the fineness of the monofilament dpf during spinning is uniform.

Description

technical field [0001] The invention belongs to the technical field of melt filtering sand cups, and in particular relates to a melt diverting sand cup specially used in the production of FDY mother wire. Background technique [0002] In the spinning process of polyester chips, the distribution of melt flow in the component is the key. The melt enters the component after metering, and after filtering through the sand cup to create pressure and divert flow, it enters the spinneret hole through the filter screen and exits the filament. It is to prevent the unevenness of monofilament dpf denier in the spinning process. In the prior art, the porous sand cup used in the conventional spinning assembly, when spinning special products such as FDY mother yarn, because the number of holes in the spinneret is only 5 holes, and they are evenly distributed on the outer ring of the spinneret, the original The sand cup will cause the melt to diverge, because the number of sand meshes in t...

AI Technical Summary

Problems solved by technology

In the prior art, the porous sand cup used in the conventional spinning assembly, when spinning special products such as FDY mother yarn, because the number of holes in the spinneret is only 5 holes, and they are evenly distributed on the outer ring of the spinneret, the original The sand cup will cause the melt to diverge, because the number of sand meshes in the cup fluctuates slightly, resulting in uneven single-filament fineness in the mother silk, and in the spinning process, after a period of use, the impurities filtered in the sand in the cup At most, the flow direction of the melt will change, which will also cause the dpf fineness of the monofilament to change, which will increase the number of broken ends of the mother filament in the subsequent filament separation process.

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