Patent DE-102011050015-A1 (DE)
Title: Apparatus, useful for coating packaging mold parts produced by injection molding, comprises a receiving area for receiving packaged goods, a supply unit for feeding the mold parts to a feeding position, and an extraction unit
Inventor: CZIZEGG WOLFGANG
IPC: B29C51/16
Filed: 2011-04-29
Abstract: The apparatus comprises a receiving area for receiving packaged goods such as cosmetic, food or drugs, a supply unit (20) for feeding packaging mold parts to be coated to a feeding position, an extraction unit (24) for removing coated wrapping moldings from a removal position, a carrier unit (6) for supporting the packaging mold parts, a transport unit (1) for transporting the carrier unit, from the supply position to the removal position, on a transport path, and a coating unit comprising a vacuum chamber (18), which is designed such that the mold parts are coated with a vacuum coating. The apparatus comprises a receiving area for receiving packaged goods such as cosmetic, food or drugs, a supply unit (20) for feeding packaging mold parts to be coated to a feeding position, an extraction unit (24) for removing coated wrapping moldings from a removal position, a carrier unit (6) for supporting the packaging mold parts, a transport unit (1) for transporting the carrier unit, from the supply position to the removal position, on a transport path, and a coating unit comprising a vacuum chamber (18), which is designed such that the mold parts are coated with a vacuum coating to increase the passage barrier effect against gases and/or water vapor. The supply unit is provided upstream a molding unit. A cooling unit is provided between the molding unit and the coating unit. The cooling unit is designed such that the mold of the packaging parts is less cooled while entering into the vacuum chamber, and the coating unit has a temperature of 20-30[deg] C. The packaging mold parts, while entering into the cooling unit, comprise a temperature of 50-80[deg] C. The transit time of the packaging mold parts to be cooled by the cooling unit is an integral multiple of the cycle time of the packaging mold parts processed by the coating unit, where the processing time of the packaging mold parts by the coating unit is less than 30 seconds. The cooling unit comprises a cooling chamber, and a paternoster. The coating unit further comprises an inlet airlock upstream of the vacuum chamber in the transport direction of the transport unit. The transport unit is partly formed by the cooling unit such that the packaging mold parts lead linear through the coating unit. The transport path comprises first and second linear transport sections, where the directions of the first and second transport sections extend mutually antiparallel. A masking unit and a demasking unit are provided on the transport path. The masking unit is designed such that the packaging mold parts to be coated, before entering into the coating unit, are masked with a masking body in a masking position, where functional surface areas of the packaging mold parts are prevented from coating by sealing portions. The demasking unit removes coated packaging mold parts from the masking body after emerging from the coating unit in a demasking position. The masking body and/or the carrier unit: partially form the cooling unit; derive heat of the packaging molded parts; and further cool the mold parts after emerging from the cooling unit.