3results about How to "Reduce end break rate" patented technology

The invention discloses a plain-weave through-hole fabric and a weaving method thereof, and belongs to the technical field of textile fabric design and weaving. The plain weave through hole fabric comprises a plain weave, a transition weave and a first weave, the plain weave and the first weave are connected through the transition weave; the first weave is a plain weave, a stripe weave or a through hole weave. In addition, the invention further provides a weaving method of the plain-weave through-hole fabric, and the weaving method comprises a longitudinal weaving mode and a transverse weaving mode. According to the plain ground through hole structure, the wrinkling phenomenon is basically eliminated, the pattern effect of the fabric is obviously improved, and the end breakage rate in the weaving process is reduced.

The invention discloses a drawing frame winding forming mechanism and an intelligent control method thereof, and relates to the technical field of spinning, the drawing frame winding forming mechanism comprises a base, a translation mechanism, a clamping mechanism and a rotating mechanism, the translation mechanism is installed in the base, and the clamping mechanism and the rotating mechanism are both installed on the translation mechanism; the clamping mechanism is arranged on the outer side of the rotating mechanism; the translation mechanism comprises a dragging box, a lapping plate, a belt transmission unit, a driving part and a sensing unit; the invention further discloses an intelligent control method of the drawing frame winding forming mechanism. According to the winding forming mechanism of the drawing frame, through servo cooperation and program control, accurate dynamic laying of a cotton sliver track can be achieved through an optimized high-density space filling curve, the space filling rate in a can and the stability of a winding structure can be remarkably improved, the can changing frequency is reduced, and the production efficiency is improved; and the system has the advantages of flexible process, intelligent adjustability, reliable operation, simplicity and convenience in maintenance and the like, and provides key support for continuous and automatic production.

The invention relates to the technical field of pre-oxidized fibers, and particularly discloses a cotton spinning pre-oxidized fiber and a preparation method thereof. The preparation method comprises the following steps: mixing a polyacrylonitrile precursor with a first modified oil agent to obtain a pretreated precursor; the first modified oil agent comprises polytetrafluoroethylene dispersion liquid, nano aluminum oxide and a silane coupling agent; carrying out gradient pre-oxidation on the pre-treated precursor in an air atmosphere under the conditions that the temperature is 215-255 DEG C and the tension is 1650-2100 cN, so as to obtain a pre-oxidized fiber; immersing the pre-oxidized fiber into a second modified oiling agent for oiling and curling to obtain a cotton spinning pre-oxidized fiber; the second modified oiling agent comprises an antistatic agent, a bundling agent and a moisture absorption friction increasing agent. According to the invention, the structural stability and antistatic property of the fiber are improved by controlling the condition parameters of pre-oxidation and optimizing the components and proportion of the first modified oil agent and the second modified oil agent, so that the spinnability of the cotton spinning pre-oxidized fiber is improved, and high-quality and large-scale cotton spinning processing of the pre-oxidized fiber is realized.