A spinning component for polyester fiber and its assembly device and method

Abstract

The invention relates to a spinning component for polyester fiber and its assembly device and method. The spinning component includes a component body, and inside the component body are: fastening ring, limit pin, upper cover, sand cup set, spot welding net, sealing gasket, positioning pin I and spinneret; the sand cup kit includes the sand cup and the briquetting block, sealing ring, single-layer net, filter sand, extrusion ring, edge-wrapped mesh and single-layer coarse Mesh; there is a spring retaining ring between the fastening ring and the upper cover, and the fastening ring buckles the spring retaining ring on the upper cover; the shape of the spring retaining ring is "C", and the inner side of the "C"-shaped opening There are two concave cavities on the outer bottom of the sand cup, and bosses are arranged around the two concave cavities, and continuous grooves are arranged on the upper surface of the bosses. An automatic integrated device that uniformly stabilizes the internal pressure of the component is used in the assembly of a spinning component for polyester fiber of the present invention, which ensures that the melt stays in the component body for a consistent time, the melt has good fluidity, and each spinneret The temperature difference on the board surface is small.

Description

technical field [0001] The invention belongs to the technical field of spinning components, and relates to a spinning component for polyester fibers and an assembly device and method thereof. Background technique [0002] As the core component of polyester fiber spinning, the spinning assembly is to finely filter the polymer melt metered by the metering pump to remove mechanical impurities and condensed particles, fully mix and homogenize the melt, and pass it under a certain pressure. The spinneret has micro holes and is extruded to form primary fibers. Generally, different pressures can be selected according to different specifications of polyester fibers to extrude into fibers. [0003] In recent years, with the continuous progress of the chemical fiber industry in terms of manufacturing capacity, technical equipment, variety development and product quality, "new synthetic fibers" are developing in the direction of large-capacity, ultra-fine and differentiated functional ...

AI Technical Summary

Problems solved by technology

The DIO spinning assembly not only has a better filtering effect, but also must be well sealed between each assembly in the two areas. If one assembly is loose, when spinning and filtering the melt, there will be a filter effect of the melt in the two filter chambers. Different, the pressure difference in the same ingot assembly is relatively large, resulting in uneven fiber cross-section thickness, and in severe cases, it will also cause abnormalities such as slurry leakage, floating yarn, and finished silk wool, which seriously affects product quality.

In the DIO spinning assembly device of the prior art, a sealing ring is used to seal between the outer bottom of the sand cup and the spinneret to improve the reliability of the seal, but the contact surface between the outer bottom of the sand cup and the spinneret is not provided. The filter screen, the boss, and the sealing ring are easily deformed and dislocated under the extrusion of external force, and the sealing effect cannot be achieved. The melts in the two chambers are mixed with each other, and the melt filtering effect is not good; the bottom of the inner chamber of the sand cup is equipped with a round hole As a melt channel, there is no guide hole for buffering the melt, which has a poor diversion effect on the melt; there is no spring retaining ring between the upper cover of the component and the fastening ring, and it is easy to loosen between the components, which affects the filtration of the melt Effect; in the assembly process of the DIO spinning assembly, as the fastening ring that fastens all the components of the DIO spinning assembly in the body, it plays an important role. The existing assembly technology scheme is to put the circular clasp Insert the fastening ring into the fastening ring, and fasten the fastening ring in the upper port of the component through the handle operation. This method is prone to uneven force between the components in the component during manual operation, resulting in loosening and affecting the melt filtering effect. Abnormal fiber cross-sections, etc., cannot guarantee normal production, and the efficiency is low, the loss of consumables is large, and the assembly quality cannot be guaranteed

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