37results about How to "Guaranteed molding size" patented technology

The invention discloses a cover plate mold for cancelling a phosphating process. The cover plate mold is mainly composed of an upper template, a compression spring, an upper baseplate, an upper mold core baseplate, fixing screws, an upper mold core, a fixing plate, an upper transmission piece pressure block, a mold frame, a limiting mechanism, a lower template, a discharging plate, a lower transmission piece pressure block, a lower mold core baseplate, a lower baseplate, a lower mold core, a locating block, a step structure mounting surface pressure block, a flanging pressure block, an upper mounting surface pressure block, a guide pillar and a guide sleeve. According to the cover plate mold, through regulation of the cover plate mold structure and a clearance, formation after phosphatingis not required; a cover plate is directly subjected to stretch forming, and destructive treatment to the surface is not required; the surface strength of the cover plate can be improved, and meanwhile the production efficiency is improved; and the production cost, labor intensity and environmental pollution are reduced.

The invention belongs to the technical field of building construction, and in particular relates to a combined member of a shear wall formwork inner stay and a tie bar, which includes a cement inner stay and a tie bar, and both ends of the tie bar are bent upwards to form a A hook, one end of which is a 90° hook, and the other end is a hook greater than 90° and less than 180°; the cement inner stay is a long strip structure, and a notch is provided on the upper surface of its two ends; The middle part of the tie bar is pre-buried in the cement inner stay, the hooks at both ends of the tie bar face upward and are located outside the notch of the corresponding end, and the hooks at both ends of the tie bar are connected to the upper part of the cement inner stay. Surfaces are angled at an angle. In the present invention, the cement inner stays and tie bars are made into one component to form a whole, which not only satisfies the function of formwork inner support and steel bar tie, but also reduces the space occupancy of the transverse member in the shear wall, and reduces the time when the vibrating rod is inserted. The obstruction reduces the difficulty of on-site construction; greatly saves labor and improves construction efficiency.

The invention discloses a forming die device used for U-shaped bar materials. The forming die device comprises a female die and a male die, which are distributed side by side. The working face of the male die is matched with the inner wall of a U-shaped bar material. The female die comprises two oppositely arranged female die plates. A rolling wheel and a shaping wheel arranged side by side are arranged on the inner side of each female die plate and protrude out of the inner side of the female die plate. During formation of the U-shaped bar materials, the female die moves toward the male die, the rolling wheels and the shaping wheels sequentially roll on the outer side of the U-shaped bar material. The forming die device further comprises a top press plate. During working, the top press plate presses the male die and covers the U-shaped bar material. The forming die device has the advantages that with the closed ring die cavity, and forming size and flatness of the upper and the lower surfaces are guaranteed; the rolling wheels and the shaping wheels arranged side by side are arranged on the inner side of the female die plates, so that flatness, surface quality and mechanical performance of products are improved.

The invention relates to a demoulding device and a demoulding method, in particular to a concrete briquette automatic demoulding device and a demoulding method. The device comprises a forming test mould, a demoulding support base, three hydraulic oil cylinders and a hydraulic power device, wherein the forming test mould is a three-connection mould, test mould support boards are arranged in the centers of the baseboards of the forming test mould, sealing rings are arranged around the test mould support boards, a positioning groove is formed in the upper surface of the demoulding support base, the side wall of the groove is provided with a hinged buckle which tightly clamps the three-connection mould, a basket-like nut is arranged in the middle part of the hinged buckle, the three hydraulic oil cylinders are arranged in parallel, top blocks are hinged to the upper ends of the hydraulic oil cylinders, the lower ends of the hydraulic oil cylinders are fixed with a demoulding support, an electromagnetic reversing valve pinboard and a direct-acting overflow valve are respectively connected onto the oil inlet and the oil outlet of the hydraulic power unit, the electromagnetic reversing valve pinboard is connected with the three hydraulic oil cylinders in parallel, an electromagnetic reversing valve is installed on the electromagnetic reversing valve pinboard, and the electromagnetic reversing valve and the hydraulic power unit are electrically connected with an electrically controlled box. The concrete briquette automatic demoulding device is simple in mould and high in forming precision, the automatic demoulding does not be damaged easily.