4results about How to "Avoid strong impact" patented technology

The application provides a method and device for generating a farm machine guide line, the method comprising: determining a reference safety distance of the farm machine according to a minimum turning radius of the farm machine and a target offset distance; the reference safety distance representing a distance between a projected position of a current position of the farm machine on a target work path and a target upper line position of the target work path; constantly updating the target upper line position of the target work path and determining an upper line reference time of the farm machine according to the reference safety distance of the farm machine; the upper line reference time being determined according to an initial speed, an initial position of the farm machine and the target upper line position of the target work path; generating a target guide line of the farm machine according to the upper line reference time of the farm machine and a guide line trajectory generation equation constructed in advance; and the acceleration, impact and curvature value of the target guide line during the travel of the farm machine all satisfying constraint conditions. The application can ensure that the farm machine smoothly, accurately and efficiently cuts into the work path, so as to improve the work efficiency and work quality of the farm machine.

This utility model discloses a placement frame for processing medium-transmittance, high-heat-insulating float glass, applicable in the field of frames. It includes a shell and an inflatable structure. A fixed frame is welded to the top of the shell, and a first through hole communicating with the fixed frame is opened on the top of the shell. Airbags are installed on opposite sides of the two fixed frames, and second through holes communicating with the airbags are opened on opposite sides of the two fixed frames. A back plate is welded to the top of the shell, and a fixed plate is provided on the front of the back plate. The back plate has a mounting groove on its front. It possesses a collision buffer function, preventing the glass from moving backward too quickly and colliding strongly with the back plate, thus ensuring the integrity and quality of the glass. Simultaneously, it facilitates quick positioning of the glass, not only preventing displacement of the glass during frame movement but also reducing friction between them, offering good flexibility.

The invention belongs to the technical field of die-casting dies, and provides a die-casting die for a shell, which comprises a movable die assembly, a fixed die assembly, a sliding block mechanism, a cooling mechanism and a feeding mechanism, the sliding block mechanism comprises an auxiliary sliding block, and the auxiliary sliding block comprises a feeding end face and a profiling face. The fixed mold assembly comprises a mold core, and a cooling hole is formed in the mold core; the cooling mechanism comprises a high-pressure point cooling pipe, and the high-pressure point cooling pipe is used for forming a cooling loop in the sleeve; the feeding mechanism comprises a main flow channel and a feeding channel. Compared with the prior art, the auxiliary sliding block is arranged on the side wall, without an inverted buckle structure, of the product cavity to serve as a feeding auxiliary structure, the feeding direction of the product cavity is parallel to the thickness direction of the shell in cooperation with the feeding mechanism, stable feeding of molten metal in the thickness direction of the shell is achieved, and strong impact on local parts of the cavity is avoided; and the filling uniformity of the molten metal is improved.

An opening and closing structure of a thermal printer comprises a lower base assembly and an upper cover assembly which can be arranged on the lower base assembly in a turnover mode, and is characterized in that a connecting supporting frame is arranged at the rear end of the upper cover assembly, a shaft part and a falling groove are arranged on one side of the connecting supporting frame, and correspondingly, the lower base assembly is provided with an inserting channel for containing the connecting supporting frame. The shaft hole is in running fit with the shaft part, and the convex body can be in extrusion contact with the outer wall of the connecting support frame to generate damping. The utility model also discloses a thermal printer. When the upper cover assembly and the lower base assembly are closed, the protruding body and the outer wall of the supporting frame form extrusion contact, friction force is formed on the contact face, damping of the last stroke of the upper cover assembly is achieved, strong impact of the upper cover assembly on the lower base assembly is avoided, and the risk that fingers are clamped can also be reduced.