60results about How to "Uniform tightness" patented technology

The invention discloses a novel rubber protective wax which comprises the following components in percentage by weight: 14-20 percent of paraffin, 55-60 percent of mixed crystal wax, 24-30 percent ofmicrocrystalline wax and 1-2 percent of polyethylene wax. The invention has favorable seal performance and can reinforce the ozone and ageing resistance of a rubber product and prolong the service life of the rubber product.

A device applied to the corn quality grade detecting, especially applied to imports and exports , the department of store and transportation , purchase, detect and production ,to detect the moisture content etc., bulk density and quality grade of corn such as maize and wheat, including moisture detect element, weighing element, volume measure element , vibration transport element, charging hopper , outer covering , computer data handling element etc. Its characteristic is that transporting the material waiting for detecting to volume measure element by using mini-type vibration transport device equably, ascertain the quality grade of the corn according to the real bulk density and moisture content of the corn entering volume measure element. Putting the material waiting for measuring into a charging hopper first, transducing the moisture content and temperature of the material by interdigited capacitor counter electrode in the inner side of charging hopper's back, the measure result is transmitted to the computer data handle element by the highway; The tiny vibrator works to make the silo resonating under the shaking excitation , the material in charging hopper drop into capacity cups equably from the silo and the take-up pan, close the mains switch after the capacity cups is full of material, inserting the flashboard into the slot under the take-up pan, taking away the unnecessary material lightly from the take-up pan, the slot and the pan; After the electronic scale is stable, reading the quality and the bulk density of the material waiting for measuring from the electron digital display, transmitting the result of the quality and the bulk density to the computer data handling element by the highway at same time; Finally, the computer data handling element decides the grade of the corn according to national standard GB1353 , GB1351, and the information such as moisture content , the temperature , the bulk density.

The invention provides a full-automatic pneumatic type book and periodical packing machine which comprises a main machine and an auxiliary machine which are split. A cylinder forming technology and an adhesion technology are completed by the main machine. An upper corner, lower corner, front side corner and rear side corner packing technology and an adhesive tape adhesion technology are completed by the auxiliary machine. According to the sequence of the technological process, the main machine comprises a paper feeding device, a paper delivery device, a front conveyor belt device, a transverse book pushing device, a first book pressing device, a longitudinal book pushing device, a paper clamping device, a gluing device, a second book pressing device, a paper cutting device, a paper guiding device, a glue supply device and the like. According to the sequence of the technological process, the auxiliary machine comprises a rear conveyor belt device, a rear folding device, an upper folding device, a lower folding device, a forward package pushing and folding device, an adhesive tape sealing device, a package outlet station and a control system. The cylinder forming process and the processes before that are completed by the main machine. The rear side corner packaging process and the processes after that are completed by the auxiliary machine. If the two sides of a book do not need to be packed, the cylinder forming process is conducted by the main machine working independently, so that energy is saved, and efficiency is improved.

The invention discloses an automatic packaging device for pipe coils. The automatic packaging device comprises a base bottom plate, two parallel rotary fixing bases, two containing rotary rollers, coiling door frame, an annular fixing base and a winding sliding ring, wherein the two parallel rotary fixing bases are fixed to the base bottom plate, the two placement rotary rollers arranged on the rotary fixing bases and used for placing the pipe coils, the coiling door frame is arranged on the base bottom plate and stretching across the two rotary fixing bases, the annular fixing base is arranged on the coiling door frame and used for coiling and packaging the pipe coils, and the winding sliding ring is installed on the annular fixing base in a limited mode. According to the automatic packaging device for the pipe coils, the placement rotating rollers used for driving the pipe coils to rotate in a limited mode are installed on the base bottom plate, in addition, the pipe coils are coiledand packaged through the annular fixing base and the winding sliding ring which stretch across the coiling door frame of the pipe coils and a coiling belt installation shaft and a coiling guide rod which are arranged on the winding sliding ring, therefore, the coiling efficiency is improved, manpower is saved, the rotating speed of the coiling belt installation shaft and the autorotation speed ofthe pipe coils can be stably controlled, so that the tightness of the pipe coils is more balanced, and the product quality is guaranteed.

The invention discloses a plastic bag strapping machine. The plastic bag strapping machine comprises a machine frame, a vibration disc device and a plastic bag conveying device. The plastic bag strapping machine is characterized in that a U-shaped notch is arranged on the vibration disc device; a rubber band expansion device is arranged at the position corresponding to the U-shaped notch; the rubber band expansion device comprises a bracket; the bracket is provided with an upper side supporting rod, a bottom side supporting rod, two side supporting rods and an expansion cylinder; an insertionmoving mechanism is connected between the bracket and the machine frame; and the plurality of supporting rods penetrate through the U-shaped notch to be inserted into an inner hole of a rubber band under driving of the insertion moving mechanism, so that the rubber band is expanded in one direction and taken out from the U-shaped notch after being narrowed, and then stretched again. Compared withthe prior art, the plastic bag strapping machine omits a rubber band transfer mechanism and a driving device thereof, so that the whole machine is compact in structure, the working procedure is simplified, and the grasping and expansion work of the rubber band is reliable and stable.

The invention relates to a pony roll cutter, which comprises a paper placing frame and a rewinding frame. A paper placing swinging arm, a paper placing motor, an unwinding top, and an unwinding lift cylinder are arranged on the paper placing frame; a middle trolley frame is arranged on the left of the paper placing frame; and an offset adjusting roller, a buffer roller and a non-return roller arearranged on the middle trolley frame. The rewinding frame is arranged on the left of the middle trolley frame; a pressure roller, an upper slitter, a lower slitter, a paper guiding roller, a paper guiding roller, and a paper unfolding roller are arranged on the rewinding frame respectively; a rewinding motor and a motor for driving the pressure roller are arranged on the rear part of the rewinding frame; a rotating arm shaft, a rewinding swinging arm, and a rewinding shaft are arranged on the upper part of the rewinding frame; and a paper discharging trolley is arranged on the left of the rewinding frame. The pony roll cutter has the advantages of realizing automatic discharge and bobbin splitting, labor conservation, improvement of working efficiency, flat rewound bobbin surface, uniformcompactness, and high-speed slitting and rewinding.

The invention discloses a method for full-automatically mechanically bagging books, the method comprises, according to operating station sequence in process flow, the following steps: lateral feedingof books; paper guide; paper delivery; adhesive-injecting and cutting paper; positively pushing books; cylinder-forming; wrapping front opening and cornering up and down; scanning front side corner;bag-forming; lateral adhesive-injecting; sealing; bake-drying; and getting out of the bag; in the entire technological process, on the one hand, operating devices on operating stations are all connected with a main control device and all has a gear-type or chain-type transmission structure, thus fundamentally eliminating working noise and realizing coordinative and consistent transmission, on theother hand, transmission power of paper bags is originated from a positive book delivery device without a specific transmission device; in the process of getting out of the bag, the back bag of booksalways pushes the front bag of books, and shaping and drying of the paper bag are completed in a book outlet, thus fundamentally eliminating working noise and realizing coordinative and consistent transmission. The method of the invention has prominently reduced working noise, convenient operation and regulation, high quality of book bagging and high production efficiency as well as can effectively save the use amount of packing paper.

The invention provides a full-automatic pneumatic type book and periodical packing machine which comprises a main machine and an auxiliary machine which are split. A cylinder forming technology and an adhesion technology are completed by the main machine. An upper corner, lower corner, front side corner and rear side corner packing technology and an adhesive tape adhesion technology are completed by the auxiliary machine. According to the sequence of the technological process, the main machine comprises a paper feeding device, a paper delivery device, a front conveyor belt device, a transverse book pushing device, a first book pressing device, a longitudinal book pushing device, a paper clamping device, a gluing device, a second book pressing device, a paper cutting device, a paper guiding device, a glue supply device and the like. According to the sequence of the technological process, the auxiliary machine comprises a rear conveyor belt device, a rear folding device, an upper folding device, a lower folding device, a forward package pushing and folding device, an adhesive tape sealing device, a package outlet station and a control system. The cylinder forming process and the processes before that are completed by the main machine. The rear side corner packaging process and the processes after that are completed by the auxiliary machine. If the two sides of a book do not need to be packed, the cylinder forming process is conducted by the main machine working independently, so that energy is saved, and efficiency is improved.

A Nb based on layer-by-layer stacking 3 The preparation method of Al superconducting precursor wire mainly includes: A. Preparation of Nb-Al composite sheath: Nb foil and Al foil are alternately stacked in the rectangular groove of the tubular Nb box from bottom to top, and the upper cover is covered , in the Cu tube, welded and sealed; B. Preparation of Nb-Al single mandrel: the Nb-Al composite sheath is hydrostatically extruded, repeatedly drawn, and then corroded to remove the copper to obtain the Nb-Al single mandrel. Mandrel; C, Nb 3 Preparation of Al superconducting precursor wires: multiple Nb‑Al single mandrels are packed closely into Cu or Cu alloy sheaths, and multi-cores are obtained by electron beam sealing welding, hydrostatic extrusion, and repeated drawing. Wire rod; then corrode to remove copper. The method is simple to operate, the assembly filling rate of the foil material is high, and the compactness of each layer of foil material is uniform. The final superconducting wire prepared by it has good performance, strong consistency and high qualified rate. It is especially suitable for the preparation of long superconducting wires.