5results about How to "Achieve molding" patented technology

The invention discloses a watch middle frame injection mold, and relates to the field of injection molds, the watch middle frame injection mold comprises an upper mold assembly and a lower mold assembly, the upper mold assembly comprises an upper mold plate and an upper mold core, the lower mold assembly comprises a lower mold plate and a lower mold core, and a middle frame mold cavity is formed when the upper mold core and the lower mold core are closed; first slide assemblies are arranged between the upper mold core and the lower mold core and located on the two symmetrical sides of the middle frame mold cavity, the first slide assemblies can enter the watch middle frame mold cavity in the transverse direction in the mold closing process, and needle cores which are symmetrical and can stretch out and draw back are arranged at the front ends of the first slide assemblies; the symmetrical and telescopic needle cores are arranged at the front end of the first slide assembly, so that the buckle needle hole can be directly formed in the injection molding process, the secondary processing procedure is avoided, the production procedure is reduced, and the needle cores can enter a cavity during mold closing and exit during mold opening, so that the molding of the buckle needle hole structure is realized, and the production efficiency is improved. And therefore, the watchband assembling precision is improved, the production efficiency is obviously improved, and the production cost is reduced.

The utility model relates to a die -casting die, including the die, be provided with the first core -pulling rod that is connected with the core in the die, still be provided with the pin or second core -pulling rod that is arranged with the first core -pulling rod crossing, its characterized in that: first core -pulling rod is provided with the passageway that is set for the pin or second core -pulling rod to wear, the utility model discloses a passageway is set for the pin or second core -pulling rod to wear on the first core -pulling rod, in the die -casting process, the pin or second core -pulling rod can first move along the passageway to the outside, subsequently first core -pulling rod moves to the outside and will take out the core, to realize the forming of hole structure, and there is no interference between first core -pulling rod and second core -pulling rod or between first core -pulling rod and pin, thereby can realize smooth stripping and punching.

This invention relates to the field of aerogel composite materials technology, and more specifically, to C / SiC foam-reinforced SiC aerogel composite materials and their preparation methods. This invention uses lightweight, high-strength C foam as the skeleton material for the aerogel composite material, and achieves mechanical modification and reinforcement of the C foam skeleton through a SiC coating. The SiC aerogel is obtained by in-situ molding on the surface of the C / SiC foam skeleton using a sol-gel process combined with a carbothermal reduction process, achieving integral molding of the aerogel composite material. Through a gradient structure design, the precursor organic sol solution can better penetrate into the pores of the C foam skeleton. Simultaneously, the porosity can be adjusted to control the proportion of SiC aerogel, optimizing impedance matching characteristics and facilitating surface electromagnetic wave incidence. Furthermore, the internal C foam skeleton also exhibits a gradient distribution, optimizing dielectric loss attenuation and facilitating incident electromagnetic wave absorption, thus synergistically achieving the wave absorption performance of the aerogel composite material.

This utility model discloses a device for extruding and forming utility pole clamps, comprising: an extrusion table; a hydraulic cylinder fixedly connected to one rear end of the upper surface of the extrusion table; a solid clamp module fixedly connected to the extended end of the hydraulic cylinder; a groove formed on one side of the middle of the extrusion table; a roller slidingly fitted inside the groove; a movable frame rotatably connected to the top of the roller; a threaded block fixedly connected to the rear end of the movable frame; a bidirectional screw threadedly connected inside the threaded block; a fixed plate fixedly connected to the middle of one side of the extrusion table; and a fixed sleeve fixedly connected to the upper surface of the fixed plate. The solid clamp module enables the forming of the clamp structure. After forming, the hydraulic cylinder resets, the electric push rod extends and pushes out, and the small motor inside the fixed sleeve drives it again, causing the threaded sleeve to extend. The formed clamp is then pushed out of the extrusion table by the push rod, completing the forming process.

The double-layer packaging box lining comprises an outer frame and at least one inner frame, each inner frame comprises at least n first side walls, n is larger than or equal to 3, all the first side walls jointly define an inner space of the inner frame and form an upper side opening of a polygonal structure of the inner frame, the upper edge of each first side wall is connected with an outwards-turned side wing, and the side wings are connected with the outer frame. The outer frame is formed by folding a strip-shaped blank plate, transverse prefabricated creases are sequentially arranged on the strip-shaped blank plate in the longitudinal direction, a first fin and a second fin are arranged on the two sides of each main body part respectively, the paperboard is folded according to the creases, and the outer frame in the shape of an n-polygon cover is defined by at least n main body parts; the inner frame is sleeved with the outer frame, the outwards-turned side wings of the inner frame are bonded with the first fins of the outer frame one by one, and the double-layer packaging box lining is formed. As the strip-shaped blank plates of the outer frame are regular in shape, more unit raw materials can be divided, and the cost of the raw materials is saved; and the forming process is simpler and high in stability.