350results about How to "Guaranteed neatness" patented technology

The invention discloses a method for preparing a high-strength polyacrylonitrile-based carbon fiber precursor. The method comprises the steps of: using azodiisobutyronitrile to trigger acrylonitrile and a comonomer to perform homogeneous solution polymerization in dimethyl sulfoxide to obtain spinning solution, and controlling the temperature of the spinning solution to be between 40 and 70 DEG C and the solid content to be between 18 and 24 percent; performing monomer removal on the spinning solution under the pressure of between -60 and -78kPa, and performing deaeration treatment under the pressure of between -78 and -97kPa; then extruding the spinning solution into a spin duct in a coagulation bath with a temperature of between 35 and 65 DEG C and a dimethyl sulfoxide concentration of between 50 and 70 percent for molding through a spinneret, and obtaining PAN-based as-spun fiber through 45 to 75 percent of minus stretch in the coagulation bath; then molding and stretching through a secondary coagulation bath, a third coagulation bath, a fourth coagulation bath and a fifth coagulation bath; and obtaining the high-strength polyacrylonitrile-based carbon fiber precursor through solvent removal by water scrubbing, hot water stretch, oiling, drying and densification, steam stretch, and hot air setting. The tensile strength of the high-strength polyacrylonitrile-based carbon fiber precursor reaches 10.2cN/dtex.

The invention relates to process for preparing sliver-nanometer anti-bacteria material. The process comprises that an aluminum ion membrane is prepared on the surface of a substrate which is subsequently soaked into silver mirror reaction liquid, and then the substrate is taken out. The scheme employs that the aluminum ion membrane is prepared on the surface of the substrate, which enables the substrate to be covered with aluminum ion, and silver mirror reaction liquid is employed to produce aluminum hydroxide in ammoniated silver solution, which changes the growth velocity of different crystal surfaces of the silver, thereby inducing the growing of flaky silver nanometer slice structure, accomplishing the preparation of silver nanometer slice in a short time, and simplifying the industrial art. As the longer nanometer slice has growth vantage, the achieved nanometer slice structure is enabled to be preserved, thereby guaranteeing the regulation of the silver nanometer structure in silver nanometer anti-bacteria materials.

The invention discloses a control method of coiling tension of an oriented silicon steel continuous annealing unit, and is characterized in that, tension parameters of the entire steel coil in the coiling process are segmentally controlled according to the size of coiling diameter; the steel coil segment with small coiling diameter is provided with 2 constant tension platforms; coiling diameter parameters of steel coil between the constant tension platforms are determined, a coiling tension decline slope is between the two constant tension platforms, coiling tension of an inner core steel coil in the coiling process is steel coil gradientally controlled, and according to the change of coiling diameter of the steel coil, the coiling tension of strip steel can be constantly adjusted, so that the coiling effect of the inner core steel coil is more stable.

The invention discloses a novel stereo elevating bookshelf. The novel stereo elevating bookshelf comprises a support frame; left and right sides of the bottom of the support frame are provided with guide rails; the front end and rear end of each guide rail are provided with limiting switches; an upper end of each guide rail is provided with a guide groove; each guide groove is connected with a lower bookrack through a guide pulley; each of left and right sides of an upper portion of the support frame is provided with two sliding grooves; each sliding groove is connected with an upper bookrack through an elevating pulley; and the top of the support frame is provided with an assembly box. By adoption of the elevating mechanism, the upper bookrack can be elevated smoothly and safely, operation is simple, readers can operation the bookshelf by themselves to select required books, occupancy time of librarians is saved, structure arrangement is reasonable, and space occupancy is reduced. A structure of slidably pressing books is adopted, the books are prevented from being scattered or disordered due to the fact that the bookshelf is moved or the books in the disposing space are not enough, the books are ensured to be disposed regularly, so that the librarians can manage the books conveniently, and the readers can select and find the required books conveniently.

The invention discloses a combined multifunctional tape winding and unwinding device, which is characterized in that a frame-type rack is arranged, two ends of a winding shaft are respectively connected with joints through pin rolls and the joints are supported on the rack through bearings; and an explosion-proof motor is fixedly arranged on the rack and rotates to provide driving force for the rotation of the winding shaft through a speed reducer. The combined multifunctional tape winding and unwinding device has the advantages that the structure is simple, the device is easy to disassemble and assemble, the device is convenient to operate, the winding and unwinding efficiency of adhesive tapes can be greatly improved, the labor intensity of workers is reduced and the safety hazards can be decreased.

The invention relates to a floating seedling raising method for sweet potato true seeds, and belongs to the technical field of sweet potato true seed seedling raising.The method specifically comprises the steps that 1, a floating seedling raising pond is built and filled with water; 2, 200-pore foam floating discs are selected and filled with a seedling raising matrix with the water content of 60%; 3, the germinated sweet potato true seeds which are treated through 98% concentrated sulfuric acid and subjected to hot water and agentia soaking treatment are selected to be seeded and covered with soil, the soil surface is leveled, and the seeds are put into the seedling raising pond to be cultured; 4, water is supplemented for once every about 15 days during culturing; 5, seeding raising fertilizer is applied for the first time 3-5 days after seedlings are neat, the application amount is 15 g/disc, the concentration of nitrogen is kept to be 300 mg/L, and top dressing is performed for once every 7 days; 6, the seedlings reach the strong seeding standard after the seeds are seeded for 30-40 days and can be transplanted together with the soil.According to the floating seedling raising technique, quick and neat seedling emergence of the seeds can be promoted, the seedling emergence rate can reach 100%, the seedlings can be neat after emerging for 3-4 days, growth of the true seedlings can be kept consistent, the seedlings are strong, the root systems are developed, the root-top ratio is high, the plant height is appropriate, and time and labor are saved in the whole process.

The embodiment of the invention discloses a circuit repair paster structure and a manufacturing method thereof as well as a circuit board and a repair method thereof, which relates to the field of manufacturing of a printed circuit board and aims at effectively solving the problem that a circuit board is scrapped as a result of circuit breakage, bonding pad break-off, IC (integrated circuit) break-off and other phenomena. The circuit repair paster structure comprises one or more circuit repair pasters corresponding to original circuit patterns of at least one damaged part of a circuit board, wherein the shapes and the dimensions of the circuit repair pasters are the same with or are similar to those of the corresponding original circuit patterns of the damaged part, and the circuit repair pasters can replace the corresponding original circuit patterns to be connected with other circuit patterns of the circuit board. The invention can be used for manufacturing a circuit board.

The invention discloses a fuel cell stack assembly device which comprises a limiting part, a fixing frame and a baseplate fixing plate, wherein the baseplate fixing plate is arranged below fuel cells; the size of the baseplate fixing plate is the same as that of a fuel cell end plate; the limiting part comprises a plurality of vertical limiting plates or arc-shaped limiting strips which are perpendicular to the baseplate fixing plate; the bottom ends of the vertical limiting plates or the arc-shaped limiting strips are separately fixed with the side edges of the baseplate fixing plate; the upper parts of the vertical limiting plates or the arc-shaped limiting strips are sleeved by the fixing frame for fixing. A fuel cell stack assembled by adopting the device is uniform and looks beautiful; through adoption the device, the fuel cell stack assembly frequency is improved, the operation is simple, and the reliability is higher.

The invention relates to a pants-type product stacking positive-negative laminating device capable of conveying and laminating pants-type products in a positive-negative interlacing mode, and a laminating method. The pants-type product stacking positive-negative laminating device comprises a stander and a controller, wherein a pants-type product positive-negative rotary arranging mechanism is positioned on an overturning plate and consists of an upper annular conveying mechanism and a lower annular conveying mechanism; the upper annular conveying mechanism and the lower annular conveying mechanism are driven by a positive-negative conveying servomotor positioned on the stander and are driven to perform positive-negative rotations by a driving mechanism; and an overturning plate is driven by a rotary servomotor positioned on the stander and is driven to rotate by the driving mechanism. The pants-type product stacking positive-negative laminating device has the advantages of achieving the positive-negative interlacing lamination and conveyance of pants-type products, avoiding the problem that one side is thicker and the other side is thinner when the pants-type products are laminated, and ensuring high reliability, high quality and high efficiency of the pants-type product stacking lamination so that the shapes of middle packaging products are smoother and more beautiful.

The invention discloses a mechanical yarn waxing device used for a spinning machine and beneficial to rapid production. The mechanical yarn waxing device used for the spinning machine and beneficial to rapid production comprises a main body, a textile yarn and a driving disc. A storage bin is fixedly welded to the right side of the main body. A supporting device is connected to the tail end of a winding shaft. A connecting rod is arranged on the front side of a driven disc. A shifting rod is mounted on the outer side of the driving disc. A wax box is arranged on the left side of a scraping device. A mounting groove is formed in the wax box. A fixing base is mounted at the top end of a spring. A fixing hole is formed in the outer side of the top of a wax rod. According to the mechanical yarn waxing device used for the spinning machine and beneficial to rapid production, yarns can be protected and can be kept in order; the yarns can be sufficiently soaked in liquid wax, so that the waxing uniformity is ensured; and the liquid wax can be kept sufficient all the time in use and can be kept in the liquid state, so that rapid waxing is facilitated, and the production efficiency is improved.

The invention relates to an industrial processing method for quick-freezing stewed pork with brown sauce. The method is characterized in that the quick-freezing stewed pork with brown sauce is prepared by performing pre-cooking, stewing, dicing, stewing in soy sauce, sauce making, packaging, freeze-drying and the like. The stewed pork with brown sauce processed by using the method can be directly cooked and stewed with a bag by using water, is heated in a microwave form until the pork is heated completely, and the pork can be eaten; the pork is simple and convenient to operate, dense in fragrant smell, soft in taste and free of greasy. According to the processing steps of dicing, the stewing in soy sauce and the like, the soy sauce is separately cooked, so that the operation process is simple, and the large scale and the industrialization production of traditional food can be conveniently realized.

The invention discloses an assembly type building wall component, and belongs to the technical field of building equipment. The assembly type building wall component comprises an assembly type wall and a fixing base, the assembly type wall is arranged on the fixing base, the two sides of the fixing base are fixedly connected with auxiliary fixing rods, the assembly type wall is provided with a clamping groove, the fixing base is connected with a clamping device, and the clamping device is matched with the clamping groove. A mounting groove is formed in one side of a fixing base bottom plate, afixing base connecting mechanism is installed in the mounting groove, and a connecting lug is fixedly connected to the side, away from the mounting groove, of the fixing base bottom plate. The connecting lug is matched with the fixing base connecting mechanism. The component effectively solves the problems that a mounting connection mode between an existing designed assembly type building wall and a concrete building structure is troublesome, and the firmness and durability of installation and connection of the assembly type building wall cannot be ensured.

A multifunctional seed germination accelerating device comprises a body, the right top end of the body is fitted with an exhausting device, the upper left end of the body is fitted with an inflow pipe, the left middle of the body is fitted with an oxygen generator, the upper right end of the body is fitted with a controller, the lower right end of the body is fitted with an outflow pipe , the middle of the inside of the body is fitted with a germination accelerating chamber, the right of the inside of the body is fitted with an ultrasonic sterilizing lamp tube, the middle of the inside of the germination accelerating chamber is fitted with a stirring device, the left of the inside of the germination accelerating chamber is fitted with a filter plate, the lower end of the filter plate is fitted with a water level sensor, the right upper end of the inside of the germination accelerating chamber is fitted with a temperature sensor, and the lower right end of the inside of the germination accelerating chamber is fitted with a filter mesh. The multifunctional seed germination accelerating device has rich functionality, is simple to use, widely applicable, high in practicality and germination accelerating speed giving greatly shortened seed germination accelerating time, and is high in germination accelerating efficiency with sprouts being regular and highly uniform.

The invention discloses a garbage compression device used for environmental protection. The garbage compression device comprises a supporting base and a compression box body, wherein the bottom outerwall of the compression box body is mounted on the outer wall of one side of the supporting base through a bolt; the top outer wall of one side of the compression box body is fixedly equipped with a guide shell body; two rotary rollers are arranged inside the guide shell body; the outer walls of two ends of the two rotary rollers are connected to the inner walls of the two ends of the guide shellbody through bearings separately. According to the garbage compression device used for environmental protection disclosed by the invention, the top of one side of the compression box body is equippedwith the guide shell body, two rotary rollers are arranged in the guide shell body, and the peripheral outer walls of the two rotary rollers are equipped with crushing teeth, and the two groups of crushing teeth are mutually engaged; and a rotary motor drives the rotary wheels to rotate, so that the two groups of crushing teeth in reverse rotation directions crush the garbage, and therefore, garbage compression sufficiency is conveniently improved.

The invention discloses a feed trolley used for stacked material. The feed trolley used for the stacked materials comprises a base provided with a traveling mechanism and a positioning frame used forbeing abutted against and positioning the materials. The positioning frame is installed on the base through a conversion assembly and can move to a first position to be abutted against and position the materials or a second position away from the first position. The feed trolley used for the stacked materials has the advantages of being simple in structure, low in cost, easy to control, stable inoperation, capable of achieving loading and unloading conveniently, accurate and reliable in positioning and the like.

The invention discloses a tile wall-adhering die, which comprises a bottom board, wherein a framework which is projected to one side is arranged on the edge of the bottom board, a plurality of baffle plates which are arranged vertically and horizontally are installed in the framework, the baffle plates divide the space which is encircled by the framework and the bottom plate into a plurality of zones which are used to arrange tiles, a plurality of openings are arranged on the bottom board, the positions of the openings are corresponded with the zones which are used to arrange tiles one by one, which can conveniently and rapidly paste a plurality of tiles on demanding wall simultaneously, and operating workers can use a little hammer to beat the tiles through the openings and enable the tiles to be pasted on the demanding wall better and more firmly. The invention increases the working efficiency, minimizes the labor intensity of the operating workers, and guarantees the uniformity of the tiles.

The invention discloses a recyclable textile machinery winding cylinder which comprises a winding cylinder body. A rotating shaft is arranged in the winding cylinder body, and a plurality of springs are fixedly arranged on the rotating shaft. A baffle ring is arranged at one end of the winding cylinder body, and a first end cover is arranged on one side of the baffle ring. The rotating shaft is rotatably connected with a motor shaft of a driving motor through a coupling. The other end of the winding cylinder body is movably connected with a movable ring, and a second end cover is arranged on one side of the movable ring. Antistatic layers are arranged on the inner sides of the baffle ring and the movable ring correspondingly, a T-shaped block is fixedly arranged on the inner side of the movable ring, a magnetic layer is fixedly arranged on one side of the bottom of the T-shaped block, and a long-strip-shaped sliding groove is formed in the winding cylinder body. The movable ring and the baffle ring are arranged; through scale lines on the outer side of the winding cylinder body and moving of the movable ring, the using position of the winding cylinder body is adjusted; the baffle ring prevents a spinning thread from being deflected, and winding regularity is guaranteed; and the winding cylinder is simple structure, regular in winding, high in work rate, and capable of being recycled.

The invention discloses a mulching film automatic unwinding machine. The mulching film automatic unwinding machine comprises a rack. The rack is provided with an empty roller storage area, a full roller storage area and a winding area. A plurality of empty winding rollers which are not wound with mulching films are placed in the empty roller storage area. The full roller storage area is used for storing full winding rollers which are wound with mulching films with specified thicknesses. The winding area is provided with one or more mulching film winding stations. Each mulching film winding station comprises a working station and an ending station. Each working station is provided with an electronic length counter. The rack is further provided with a power device which is used for conveying the empty winding rollers from the empty roller storage area to all the working stations, conveying the full winding rollers wound with the mulching films in all the working stations from the working stations to the ending stations, and conveying the full winding rollers from the ending stations to the full roller storage area. The mulching film automatic unwinding machine has the functions of automatically storing and conveying the winding rollers and automatically storing finished products, operation is reliable and stable, a worker can look after multiple devices at the same time, the automation degree is high, and the labor cost is reduced.