4results about How to "Avoid doubling" patented technology

The utility model provides a kind of carbon fiber yarn feeder's silk separating device and carbon fiber yarn feeder, silk separating device is arranged between silk roll and tension controller, including, silk separating comb, it includes the multiple guide wire posts of interval arrangement along the axial direction of silk roll, for wire drawing between adjacent two guide wire posts;Guide wheel, along the wire direction, it is arranged in the downstream of silk separating comb, its outer periphery is equipped with multiple first guide wire grooves along its axial direction arrangement, each first guide wire groove and the clearance between each adjacent two guide wire posts correspond.The utility model can divide the original silk bundle into multiple groups of output by silk separating comb and guide wheel, the setting of silk separating comb can ensure that each group of original silk bundle is stably fallen into each first guide wire groove of guide wheel, ensure the positioning effect to each group of original silk bundle, so that, when the yarn feeder is uncoiled to multiple original silk bundles, avoid the situation of parallel silk, improve the uniformity and stability of each group of original silk bundle state in the process of yarn feeding, improve the quality of carbon fiber.

The utility model provides a kind of small desktop type spinning draft device, including extrusion mechanism, cooling mechanism, oiling mechanism, draft mechanism and winding mechanism.Extrusion mechanism, cooling mechanism, oiling mechanism, draft mechanism and winding mechanism are connected in rack side, extrusion mechanism, cooling mechanism and oiling mechanism are set from top to bottom, and draft mechanism is set between winding mechanism and oiling mechanism.Cooling mechanism and oiling mechanism are provided with silk pressing mechanism, and oiling mechanism downside is equipped with guide mechanism.Extrusion mechanism extrudes tows, and tows are cooled after cooling mechanism, and then oiling is carried out in oiling mechanism, and after oiling, tows are reversed after guide mechanism, and then draft in draft mechanism, and after draft, tows are wound by winding mechanism.The utility model integrates extrusion, cooling, oiling, draft, winding and other multi-process, realize desktop miniaturization, small floor area, and adapt to small batch, multi-batch research and development production demand.

The invention discloses an audio bus system and an audio bus connection method, and relates to the technical field of audio bus connection, the system comprises a master node and a plurality of slave nodes; the second bus transmit-receive interface of the master node is connected with one bus transmit-receive interface of the first slave node to form a master link; the first bus transmit-receive interface of the master node is connected with one bus transmit-receive interface of the first slave node to form an auxiliary link; starting from the second slave node, one bus transceiving interface of each subsequent slave node is connected with one bus transceiving interface of the previous slave node; the controller is used for controlling only operation of the main link when the audio data transmission load is not greater than a preset threshold value; and when the audio data transmission load is greater than a preset threshold value, controlling to operate the main link and the auxiliary link at the same time. According to the application, the problems of link blockage, data loss, poor data integrity and the like caused by excessive bandwidth occupation can be solved on the premise of not increasing the number of nodes and the length of a cable.

This application discloses a method for preparing and applying a positive electrode for a polymer lithium-ion battery, belonging to the field of lithium-ion battery technology. The preparation method includes: using a carbon fiber woven fabric as a receiving substrate, electrospinning a polyacrylonitrile solution to deposit polyacrylonitrile nanofibers on the surface and interfiber spaces of the carbon fiber woven fabric; pre-oxidizing the carbon fiber woven fabric with deposited polyacrylonitrile nanofibers; and subsequently performing heat treatment in a sulfur-containing atmosphere to convert the polyacrylonitrile nanofibers into sulfurized polyacrylonitrile nanofibers in situ, thereby obtaining the positive electrode. The positive electrode prepared by this application has high specific capacity, high cycle stability, and excellent structural compatibility, and is suitable for all-carbon fiber structure lithium-sulfur batteries.