The utility model relates to the technical field of molds, discloses a demolding
assembly for production and injection molding of an air conditioner shell, and aims to solve the problems that an existing demolding
assembly depends on a single-point ejector pin and lacks an auxiliary means for demolding, and the surface of a product is easily traced, deformed and even fractured due to local
stress concentration. Comprising a supporting table, a fixing frame, a transmission mechanism, a mold closing mechanism and a demolding mechanism, a guide column and a limiting column guarantee stable movement, a sealing structure improves the injection molding precision, the demolding time is remarkably shortened, and during demolding, a
hydraulic pump reversely enables a lower mold to descend, an electric telescopic rod pulls an upper mold to ascend, and a rack drives a circular gear and a
bevel gear set to conduct transmission; the ejection part is driven to move along the guide rail, the conjunction block of the ejection part is in large-area contact with the air conditioner shell, the air inlet
pipe sprays air through the air holes to cool the shell,
friction force and
adhesive force of the mold are reduced, stable ejection is achieved, action synchronization is guaranteed through gear and rack linkage, and therefore the demolding time is remarkably shortened, and the production efficiency is improved.