Spinneret plate for producing non-woven matrixes and cooling and shaping device of spinneret plate

Abstract

The invention relates to the field of fiber production, in particular to a spinneret plate for producing non-woven matrixes and a cooling and shaping device of the spinneret plate. Stepped cylindrical holes or positive frustum holes are additionally formed at the lower ends of spinneret orifices of the spinneret plate for producing the non-woven matrixes. The cooling and shaping device of the spinneret plate comprises a spinneret die head, netting licker-ins, a cooling mechanism, drying mechanisms, a glue spraying mechanism and a shaping mechanism, the cooling mechanism, the drying mechanism glue spraying mechanism and the shaping mechanism are sequentially mounted, semi-products of the matrixes are revolved via support rollers, power roller pairs and guide rollers, and the spinneret plate is mounted at the lower end of the spinneret die head. Expansion and crushing of melt can be limited after the melt flows out of the spinneret orifices, adhesion between two adjacent two spinneret orifices or among multiple spinneret orifices is eliminated, the produced non-woven matrixes are smooth in surface and less in bulk particles, defects of a traditional technology are overcome, improvement of production efficiency is facilitated, and production cost is saved.

Description

technical field [0001] The invention relates to the field of fiber production, in particular to a spinneret for producing a non-woven matrix and a cooling forming device thereof. Background technique [0002] A low-density, thick fiber, durable non-woven abrasive has been widely used in the treatment of various workpiece surfaces. The quality of the product mainly depends on the quality of the substrate. The spinneret is the key component of the spinning device. With the different processes, the requirements for the spinneret are also different. NaOH / urea aqueous solution is used to dissolve the cellulose fiber. Since the dissolution process is a physical process, the performance of the spinning colloid It is essentially different from the ordinary carbon disulfide dissolution process, and has higher requirements on the spinneret. The existing ordinary spinneret is prone to clogging, poor fiber orientation, and low fiber strength, which cannot meet the normal production requ...

AI Technical Summary

Problems solved by technology

The spinneret is the key component of the spinning device. With the different processes, the requirements for the spinneret are also different. NaOH / urea aqueous solution is used to dissolve the cellulose fiber. Since the dissolution process is a physical process, the performance of the spinning colloid There is an essential difference from the ordinary carbon disulfide dissolution process, and the requirements for the spinneret are higher. The existing ordinary spinneret is prone to clogging, poor fiber orientation, and low fiber strength, which cannot meet the normal production requirements.

For example, the U.S. patent (patent number: US4227350) provides a method for manufacturing non-woven abrasive products and product substrates. After the melt is sprayed from the spinneret hole, puffing usually occurs, and even melt breakage occurs in severe cases. , so that the melts ejected from adjacent two holes or holes are bonded to each other to form agglomerated particles, which seriously affects the quality of the matrix

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