2results about How to "Guaranteed break" patented technology

The application provides a shearing type unlocking separation device, a dynamic test system and an unlocking force control method. The device comprises an unlocking bolt, a shearing protective sleeve and an auxiliary mechanism. The unlocking bolt comprises a first threaded section, an unlocking separation section and a second threaded section. Two weakening grooves are arranged on the unlocking separation section and extend in the same direction. The two weakening grooves are provided with through holes at the side ends close to each other. The distance between the two through holes is l. The angle between the weakening grooves and the axis of the unlocking separation section is β. The angle between the line connecting the two through holes and the radial line of the unlocking separation section is α. The two weakening grooves penetrate the unlocking separation section. The weakening grooves are filled with high-strength fillers. The shearing protective sleeve is sleeved on the unlocking separation section. The auxiliary mechanism is threadedly connected to the second threaded section. The application can realize rapid response and precise control of unlocking force, and the separation process does not produce harmful gas, and the economic efficiency and environmental benefits are good.

The utility model discloses an extrusion pelletizer for preparing chlorinated polypropylene in the technical field of polypropylene preparation, which comprises a spiral feeding cylinder, an extrusion template, a cooling tank and a pelletizing mechanism, the output end of the spiral feeding cylinder is provided with the extrusion template, one end of the cooling tank is arranged below the extrusion template, and the other end of the cooling tank is arranged below the pelletizing mechanism. A pelletizing mechanism is arranged on the outer side of the other end of the cooling tank, a guide mechanism is mounted on the inner side wall of the pelletizing mechanism and comprises a connecting rod, a guide plate, a through groove, a mounting frame and rolling wheels, one end of the connecting rod is mounted on the inner wall of the pelletizing mechanism, the guide plate is mounted at the other end of the connecting rod, and the section of the guide plate is fusiform; according to the device, the guide mechanism is arranged in the pelletizing mechanism, so that polypropylene strips passing through the upper transmission roller and the lower transmission roller can be supported and guided, and therefore, when the polypropylene strips are cut by a cutter, the polypropylene strips are ensured to be broken from the cutting position of the cutter, the uniformity of polypropylene particles after pelletizing is ensured, and the production efficiency is improved. And the granulation effect of the device is improved.