7results about How to "Reduce useless work" patented technology

This utility model discloses a fabric spreading machine for garment making, including two sets of symmetrically arranged support plates, two sets of symmetrically installed drive shafts between the support plates, and two sets of synchronous belts symmetrically sleeved on the drive shafts. A servo motor is installed on one side wall of each support plate. The advantages are: by setting up a rotary circulation mechanism composed of a servo motor, drive shafts, and synchronous belts, and a dual-station clamping and fixing mechanism formed by two sets of clamping blocks, this utility model allows one clamping and fixing mechanism to fix one end of the fabric during the fabric spreading process, and then spread and cut it under the action of the rotary circulation mechanism. After cutting, the nearest clamping and fixing mechanism can be quickly adjusted to the free end of the fabric through the rotary circulation mechanism, thereby quickly fixing and spreading it. This improves the spreading efficiency of the device, reduces unnecessary work, and enhances the usability and functionality of the device.

This utility model discloses a combined cleaning system for the intake of a hydropower station, relating to the technical field of hydropower station cleaning equipment. The system includes a rotary cleaning machine, a rake-type cleaning machine, and a belt conveyor. The rotary cleaning machine is positioned in the surface area of ​​the trash rack, 0.5-3 meters below the water surface, and achieves continuous cleaning of multiple openings through a rake array and a rotary drive device. The rake-type cleaning machine is located on top of the gate pier, and its cleaning rakes can be vertically raised and lowered to cover deeper areas, controlled by a lifting drive component and a cleaning gate mechanism. The belt conveyor receives the debris cleaned by both machines and transports it to the shore. The two cleaning machines work collaboratively; under normal conditions, the rotary machine operates independently, while during deep cleaning, the rotary rake array avoids obstacles, and the rake-type machine performs deep cleaning. This system achieves layered cleaning, improving efficiency and reducing costs, and is suitable for intake scenarios with multiple openings and deep trash racks.

The application belongs to the field of energy collection, and particularly relates to a wind energy friction nanogenerator, which comprises a wind-driven rotor, a friction power generation unit, an electrostatic induction unit and a stator; the stator comprises a top disc, a bottom disc, a central shaft and a base disc; the central shaft is fixedly connected with the center of the base disc, the top disc and the bottom disc in sequence; the wind-driven rotor is arranged between the top disc and the bottom disc and connected with the central shaft through a bidirectional bearing; the friction power generation unit is arranged between the bottom disc and the wind-driven rotor; the electrostatic induction unit is arranged between the top disc and the wind-driven rotor; the friction power generation unit outputs direct current when the wind-driven rotor rotates; the direct current output by the friction power generation unit is input into the electrostatic induction unit to make the wind-driven rotor output alternating current when rotating, and the wind energy friction nanogenerator designed in the application can not only convert wind energy into mechanical energy, but also output direct current and alternating current simultaneously.

The utility model discloses big caliber nodular cast iron pipeline installation instrument, including hand winch body, the power input of hand winch body is installed with locking assembly, the locking assembly includes butterfly type nut and lock bolt, locking assembly installs fast -tuning assembly, fast -tuning assembly includes connecting shaft, handle, carousel, connecting block and connecting rod. Advantageous effect lies in: the utility model discloses the handle of original hand winch body is changed into the fast -tuning assembly that constitutes by connecting shaft, handle, carousel, connecting block and connecting rod, so that the installation instrument can realize the sustained lifting of the lifting chain through the mode of sustained rotation when using, effectively reduces the useless work that big caliber pipeline does when lifting in the installation process, and the artificial labor intensity is smaller, and effectively shorten the lifting time of big caliber pipeline when installing in the gobi area, and the efficiency of big caliber pipeline of nodular cast iron material is higher when installing.

The application provides a driving structure and a compressor with the same. The driving structure comprises a crankshaft and a flange, the flange is sleeved on the crankshaft, and the driving structure further comprises: a spacing part arranged on the crankshaft and / or the flange, at least part of the spacing part is recessed relative to the shaft surface of the crankshaft, and / or at least part of the spacing part is recessed relative to the inner surface of the flange, so as to form a separation space between the crankshaft and the flange; wherein the spacing part is multiple, and the multiple spacing parts are arranged at intervals along the axis direction of the crankshaft. The application solves the problem that the contact area between the crankshaft and the flange in the driving structure in the prior art is too large, thereby increasing the loss of the crankshaft and the flange.

The application discloses a kind of three-station high-efficiency silk screen printing equipment, including rack, printing platform moving mechanism, first silk screen printing mechanism and second silk screen printing mechanism.The first station, feeding and discharging station and second station are provided on the rack;First printing platform and second printing platform are provided on printing platform moving mechanism, printing platform moving mechanism is used to drive first printing platform to move back and forth between the first station and feeding and discharging station and drive second printing platform to move back and forth between the second station and feeding and discharging station, and first printing platform and second printing platform can appear alternately in feeding and discharging station;First silk screen printing mechanism and second silk screen printing mechanism are used to silk screen printing or hole punching for printing material on first printing platform and second printing platform respectively.Worker or feeding and discharging device alternately feeds first printing platform and second printing platform, without back and forth movement of worker or feeding and discharging device, and can effectively reduce the waiting time of worker or feeding and discharging device, improve production efficiency.

A continuous production apparatus for nylon 66 includes a concentration tank, a prepolymerization reactor, and a final polymerization reactor. The inlet of the concentration tank is connected to a nylon 66 salt solution device, and the outlet of the concentration tank supplies feed to the prepolymerization reactor via a reaction preheater. The outlet of the prepolymerization reactor supplies feed to the final polymerization reactor via a feeding pipeline and a flash evaporator. The feeding pipeline is connected to a titanium dioxide suspension device. This invention has a simple structure, is easy to operate, and can continuously produce high-quality full-matte / semi-matte nylon 66 materials.