Embedded type sealing barrel cover and production method thereof

Abstract

The invention relates to an embedded type sealing barrel cover and a production method thereof, wherein the barrel cover comprises a main cover plate and a periphery frame plate connected to the periphery of the main cover plate; the main cover plate is provided with a circular opening; a flange part where the main cover plate surrounds the circular opening is a notch part, and the rim section of the notch part is a transverse U-shaped groove; a sealing rubber cover consists of an independent cover cap member and an independent inner plug member; a cover cap body, a cover cap draw ring and an anti-theft ring are sequentially connected from inside to outside to form the cover cap member; a rim part, an inner plug body, a port part, a pulling cover and a draw ring are mainly sequentially connected from outside to inside to form the inner plug member; the inner plug member also comprises a group of guide sheets, and the guide sheets are connected with the inner lateral face of the inner plug body and exert blockage on material passing in a degree during usage; and the periphery edge of the anti-theft ring and the periphery edge of the rim part are fixedly connected in a welding mode by melting plastics through a rubber coating and injection molding method, and the melting plastics are used for forming the notch part of the main cover plate in the process of the injection molding of a barrel cover body.

Description

technical field [0001] The invention relates to an injection molding product and a manufacturing method thereof, in particular to a sealed barrel cover of a packaging barrel and a manufacturing method thereof. Background technique [0002] At present, the sealed barrel lids of packaging barrels on the market are all composed of a barrel lid main body and a sealant cover. The main body of the bung is provided with a circular opening through which the sealant cover is installed. The sealant cap is composed of a cap member and an inner plug member which are screwed together. The cap component is a plastic integral part, including a cap main body, a cap pull ring connected to the cap main body from above, and an anti-theft ring connected to the cap main body from the periphery through point-shaped connecting ribs. The main body of the cap includes an upper panel and a sleeve body connected to the upper panel from below, and the sleeve body is provided with internal threads. T...

AI Technical Summary

Problems solved by technology

Although this connection method of bonding or welding the anti-theft ring to the main body of the barrel has a certain anti-theft effect, it is found that counterfeiters can remove the anti-theft ring through heat treatment and remove the entire sealant during use. cover, and then fill fake products, or take off the sealant cover and rebond or weld the sealant cover printed with your own LOGO to carry out counterfeiting activities, so the anti-theft ability of this kind of anti-theft method for the barrel cover is too poor; Moreover, the fastness of this connection method in which the sealant cover is welded on the main body of the bung is relatively poor. If the welding part falls off accidentally during transportation, the storage in the bucket will flow out, causing economic losses.

Images