5results about How to "Precise size adjustment" patented technology

This utility model provides a pre-treatment device for recycling printing raw material paper, relating to the field of paper recycling technology. It includes a support frame, a box, and a conveyor frame. A feeding hopper is fixedly installed on the surface of the box, and a discharge pipe is fixedly installed on the lower surface of the box. This utility model uses a starting motor to drive a bidirectional lead screw, causing two baffles to slide synchronously towards or away from each other along a sliding rod under the action of a sliding block. This precisely adjusts the size of the feeding hopper opening, controlling the feeding speed and amount of printing raw material paper, preventing blockage of the crushing roller due to excessive feeding. A flattening mechanism is installed on the conveyor frame, using a hydraulic cylinder to push a moving plate up and down along a guide rod. The moving plate drives the flattening roller to rise and fall, flattening the crushed paper conveyed by the conveyor belt. This effectively removes paper wrinkles and air gaps, preventing jamming or uneven crushing caused by uneven paper during subsequent crushing processes, thus improving overall processing quality and stability.

This utility model relates to the field of chemical experimental equipment technology, specifically to a laboratory feeding device. The feeding device is characterized by comprising a mounting frame, which includes a lower material tray support and an upper feeding support. A feeding bottle is mounted on the material tray support, and a reaction vessel is connected below the feeding bottle. The feeding bottle includes a solid material bottle, and a discharge port is provided at the lower end of the solid material bottle. A solid feeding mechanism is provided on the feeding support, and the solid feeding mechanism includes a vertical drive mechanism. A vibration mechanism is provided at the lower end of the vertical drive mechanism. The vertical drive mechanism drives the vibration mechanism to move downward to contact the solid material bottle, causing residual material inside the solid material bottle to vibrate and fall off. The vibration mechanism enables vibratory feeding, causing material adhering to the walls of the solid material container to fall off, ensuring smooth material feeding and guaranteeing experimental efficiency and quality.

This utility model relates to the field of electric wire and cable production technology, and in particular to an extrusion coating device for electric wire and cable. This device allows the electric wire and cable to be coated with different materials sequentially during its movement, thereby forming a multi-layer composite structure in a single processing cycle, effectively improving production efficiency and the bonding strength of the coating layers. The extrusion mold is equipped with a thickness control component, including horizontally movable left and right adjustable die lips, which can precisely adjust the size of the discharge hole, ensuring the uniformity and adjustability of the coating thickness to meet the processing needs of electric wire and cable of different specifications. Furthermore, the design of the conical injection channel and stepped transition surface optimizes the flow distribution of the molten material, reducing turbulence and bubble generation, and improving the coating quality. The combined use of the guide sleeve and positioning component accurately guides the electric wire and cable into the extrusion cavity, preventing deviation and ensuring the symmetry and consistency of the coating layers. The overall structure is compact, easy to operate, suitable for continuous production, and has high practicality and economy.

The invention relates to the technical field of seeding machines, and particularly discloses a handheld seeding machine capable of adjusting plant spacing and seeding depth, the handheld seeding machine comprises a connecting frame, a storage bin is fixedly connected to the top of the connecting frame, a handheld handrail is fixedly connected to the top of the connecting frame, and walking assemblies are fixedly connected to the two sides of the connecting frame; the side, away from the walking assembly, of the connecting frame is fixedly connected with a row spacing adjusting mechanism, the top of the connecting frame is fixedly connected with the fixed end of an electric telescopic rod, the movable end of the electric telescopic rod penetrates through the top of the connecting frame and is fixedly connected with the row spacing adjusting mechanism, and the bottom of the first connecting rod is fixedly connected with a seeding device. According to the handheld seeder capable of adjusting the plant spacing and the seeding depth, the row spacing adjusting mechanism is arranged, so that the seeding depth can be adjusted while the row spacing is adjusted, and the seeding device is arranged, so that the seeding depth can be further adjusted while the plant spacing is adjusted.

This utility model provides a winding machine for battery production, belonging to the technical field of winding machines. It includes: a feeding assembly, comprising a fixed base fixed to the top of a processing table, a connecting platform fixed on the fixed base, a second drive motor mounted on the connecting platform, a feeding shaft rotatably mounted in the middle of the second drive motor, feeding shafts fitted with various feeding shafts, and slots formed on the outer sides of each feeding shaft. Springs are mounted on the feeding shafts through these slots, and second damping springs are mounted on the side of each feeding shaft away from the springs. Fixed plates are mounted at both ends of each feeding shaft, with slots formed on the fixed plates. Outer expansion plates are mounted on the fixed plates through these slots. A fixed platform is fixed to the top of the fixed base on the side away from the connecting platform, and a snap-fit ​​ring is rotatably mounted on the top of the fixed platform. The outer expansion plates on the fixed plates at both ends of the feeding shaft, with their slots, allow for flexible adjustment of the outer expansion plate positions. Combined with the springs and damping springs, this enables precise adjustment of the winding size.