49results about How to "Uniform mesh" patented technology

The composite spongy biological dressing contains chitosan, collagen and calcium alginate with weigh tmixing ratio o f 0.5-8:0.5-8:0.1-8. Its preparation method includes the following steps: selecting chitosan and collagen type I, adding calcium alginate, compounding and cross-linking, using buffer solution to make neutralization, emulsifying, prefreezing and one-step freeze-drying so as to obtain the invented dressing with good biological compatibility and strong adhesion property. Said invented dressing possesses active function of promoting wound healing and hemostatic action, can be combined with anti-bacterial medicine to obtain gene engineeirng dressing for curing wound surface infection, also can be combined with active growth factor or active cell to form gene engineering dressing for curing intractable ulcer and burn wound surface.

The invention provides a method for preparing a hot-melt adhesive net film. The method comprises the following steps of: melting a hot-melt adhesive serving as a raw material; squeezing and spinning; heating and crystallizing by infrared light; and solidifying the material to form a net by spraying and the like. The hot-melt adhesive net film with uniform aperture and stable gram weight is prepared by controlling the melting temperature of the hot-melt adhesive, the spinning speed, the speed of a conveying belt, infrared temperature and spray. The steps are continuously finished in a production flow, so that the production efficiency is greatly improved, and the method is suitable for industrial production.

The invention provides an adjustable plastic netting material transversal stretching device. The device is characterized in that a heat oven is arranged on a frame, a rear guide roller and a pull out roller are provided at the rear part of the frame, a front guide roller is arranged at the front of the frame, a front beam is transversally fixed at the front of the frame, a left dolly and a right dolly are supported on two sides of rear part of a support in a floating mode and the rear beam is supported by the left dolly and the right dolly, the front parts of a right spreading support and a left spreading support are supported on the front beam and the rear parts of the right spreading support and the left spreading support are supported on the rear beam, the front and back ends of the right spreading support and the left spreading support are provided with sprocket wheels and a chain is hanged between the front sprocket wheel and the back sprocket wheel, a needle-shape screw is fixed on a chain link of the chain, the rear sprocket wheels of the right spreading support and the left spreading support are connected with a driving motor. According to the invention, the production problem of precise biaxial orientation stretching net is effectively solved, and the plastic high-molecular biaxial orientation stretching net can be continuously produced, the netting material has the advantages of uniform mesh, smooth surface, high tensile strength and good elasticity.

The invention relates to automatic rapid printing electromechanical equipment of textiles, in particular to electromechanical integrated rapid flat screen printing equipment. The equipment mainly comprises a silk screen, a dye groove, a cam, a right travel switch, edge suction devices, amplitude-opening threaded rollers, printing units and the like; after cloth is sucked by the edge suction devices, the cloth enters the printing units after passing through the amplitude-opening threaded rollers; each printing unit comprises the cam, a servo motor, a travel switch and the like, the number of the edge suction devices is two, and the cloth passes below the printing units and runs above a conveying belt simultaneously; the cloth is printed and then passes between four drying drums, and the drying rollers are provided with water vapor. The cam is adopted, so that the structure is simple, and compact, and the design is convenient; and therefore, in the printing process, only proper cam profiles are made, any preset movement rule of a scraper can be obtained, the running amplitude of the scraper can be adjusted, and the scraper can adapt to the cloth with different widths.

The invention relates to a fabricated sash type frame type light steel frame-punching thin steel plate-concretecomposite wall. A concrete-filled steel tube frame column, a concrete-filled steel tube frame beam and a concrete-filled steel tube frame rib together form a light steel frame sash of a wall board, and form a compositewall steel skeleton with a punching thin steel plate to improve integrity of the wall board. A framework is erected and the concrete is poured; after maintenance, the fabricated sash type frame type light steel frame-punching thin steel plate-concretecomposite wallis formed, and only connection bolts are needed for assembling the composite wall onto an external structure. The fabricated composite wall has good bend-resisting and shear-resisting capacities, out-of-plane stiffness, and good anti-seismic performance; and meanwhile, the wall board is manufactured in a factory, and is assembled on-site, and therefore the common quality problem caused by site construction is effectively solved; construction efficiency of a project is greatly improved; and work amount of the project is lowered. The fabricated composite wall is suitable for being widely popularized and used in the structure of low and multi-storey rural house structures in villages and towns, and plays an important role in promoting improvement of the traditional rural house structure technology.

The invention discloses a washing machine with a simple clutch. The washing machine comprises a box body, a spin dryer barrel, an impeller, a motor, a clutch part and a water draining system, wherein the motor is used for supplying a washing and dehydrating driving force; the washing machine is characterized in that the clutch part comprises a spin drying shaft sleeve and a spindle; the spin drying shaft sleeve is connected with the spin dryer barrel; the spindle passes through the spin drying shaft sleeve; the impeller is driven to rotate by one end of the spindle; the other end of the spindle is connected with the motor; an upper clutch is arranged on the spin drying shaft sleeve; a lower clutch is arranged on the spindle; and a lifting component is connected with the upper clutch and / or the lower clutch. The washing machine with the simple clutch has the characteristics that: washing and dehydrating are finished in one barrel, thereby being convenient and quick; an upper and lower clutch mechanism is adopted, the structure is simple, the control is accurate and the production cost is low; and the upper and lower clutches are clutch gears, the uniform teeth are compactly engagedand are difficult to separate and firmly clamp, the design is reasonable and the service life is long.