Composite spinning box in three-box form

Abstract

The invention relates to a composite spinning box in a three-box form. The composite spinning box comprises a first spinning box, a second spinning box and a main spinning box. First accommodating space is arranged in the interior of the first spinning box. A first conveying pipe is arranged in the first accommodating space. A first component in the first conveying pipe is kept at the setting temperature by means of a first heating medium source. Second accommodating space is arranged in the interior of the second spinning box. A second conveying pipe is arranged in the second accommodating space. A second component in the second conveying pipe is kept at the setting temperature by means of a second heating medium source.The main spinning box is fixedly connected with the first spinning box and the second spinning box and internally provided with accommodating space, in which a composite spinning assembly is fixedly arranged. The composite spinning assembly is communicated with the first conveying pipe and the second conveying pipe.The composite spinning box in the three-box form has following beneficial effects: temperature of two components can be separately adjusted by the composite spinning box such that apparent viscosity of the two components tends to be identical in order to decrease or eliminate bend-angle wires; and therefore sizes, degree of crystallinity and uniformity for degree of orientation of composite wires are ensured.

Description

technical field [0001] The invention relates to the technical field of spinning, in particular to a composite spinning box in the form of three boxes. Background technique [0002] In the production of composite chemical fiber spinning, the two components are melted by their respective screw extruders, and then sent into the composite spinning assembly by their respective metering pumps for compounding, and the composite filaments are ejected from a spinneret hole. The composite spinning box in the prior art consists of two spinning boxes, and the temperature of the composite component of this spinning box can only be consistent with the temperature of one of the components. [0003] The composite spinning box in the prior art cannot control the temperature of the components alone, and it is difficult to adjust the apparent viscosity of the two components to be consistent when the two components are compounded. There are many angled filaments, the product quality is poor, an...

AI Technical Summary

Problems solved by technology

[0004] The application provides a three-box composite spinning box, which solves or partially solves the technical problem that the composite spinning box in the prior art cannot control the temperature of the components separately, and realizes that the temperature of the two components can be adjusted independently. Make the apparent viscosity of the two components close to the same, reduce or eliminate the angle wire, ensure the uniformity of the fineness, crystallinity and orientation degree of the composite yarn, improve the tensile performance of the composite yarn, and reduce the fiber strength and elongation. Technical effect of long unevenness

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