Patent Name Automated Plastic Box Modified Atmosphere Packing Machine Patent Applicant Guangdong Provincial Institute of Agricultural Machinery Principal Applicant Address 510630 Inventor Zhang Song, Liang Jian, Chen Zhaoxu, 261 Wushan Road, Shihe District, Guangzhou, Guangdong Province, China Material; Luo Jiansheng Application (Patent) No. 03273678.9 Application Date 2003.08.21 Certification Date Approval Notice No. 2730758 Approval Notice Date 2005.10.05 Instruction CD No. D0540 Main Category No. B65B43/00 Class No. B65B43/00; B65B51/00; B65B31/ 00 division Original application number Priority item Abstract A packaging machine with automatic molding plastic box, filling, vacuum, filling fresh gas, sealing, cutting and other functions, consists of a rack equipped with a conveyor belt, , film conveying system, film preheating mechanism, plastic box thermoforming device, air-conditioning heat sealing device, slitting device including crosscutting mechanism, cutting angle mechanism and slitting mechanism, and wire electrical connection with each device The control system consists of a chain clamp mechanism on the conveyor belt, a plastic box thermoforming device and an air-conditioning heat sealing device that can simultaneously form a plurality of plastic boxes. Due to the use of differential pressure gas replacement technology in which fresh air is used after evacuation to ensure replacement of the air in the package, it is possible to ensure that there is no residual air in the box after packaging and to change the storage environment of the food in the package to suppress Bacteria and microbes grow and multiply, or slow down the metabolic rate of foods such as fresh fruits and vegetables, thereby prolonging the shelf life of foods and shelf life; and the automation of the packaging process, so that the molding plastic boxes, filling, vacuum, filled with fresh gas and other functions are collected. One, high production efficiency, but also can effectively avoid the possibility of food contamination. Sovereignty item 1. An auto-molded plastic box modified atmosphere fresh-keeping packaging machine characterized in that: a rack (1) equipped with a conveyor belt, an upper and a lower film conveying system (2, 3), and a plastic box thermoforming device (4) An air-conditioning heat-sealing device (5) and a control system for each device; the plastic-cassette thermoforming device (4) is mainly composed of an upper heating member (41), a lower die (42), and vacuum The machine (43) is composed of a mold clamping cylinder (44). The main body of the heating member (41) is composed of a heating chamber (45) fixed on the frame and a heating plate (46) therein, and the heating chamber is in contact with the lower mold. Adaptable rectangular cover shape, with air holes at the top, rectangular electric heating plate fixed in the lid; lower mold (42) is a group of four rectangular concave mold, the bottom of the lower mold is connected with the vacuum machine exhaust hole; The air cylinder 44 is mounted on a frame below the molding die, and its piston rod top is connected to the lower die; the lower die strip is wound on the cylinder of the lower film conveying system (3) and heated from the heating member ( Passing under the heating plate (46) in 45) and the lower mold; the air-conditioning heat sealing device (5) is mainly composed of an upper pressure sealing room seat which can be combined into a sealing chamber (51 ) and the lower supporting mold (52) and the lifting cylinder (53) are composed of; the upper pressure sealing chamber seat fixed on the armor frame is a rectangular cover with a vent hole on the top surface, and a rectangular electric heat sealing plate (54) is installed; Cylinder (55), cylinder rod end connected to the electric sealing plate; the lower supporting mold is a set of four rectangular concave molds adapted to the shape of the thermoformed plastic box, and the bottom is provided with an air extraction hole; the piston rod is lifted upwards. The cylinder is fixed on the frame, and the rod end is fixed under the lower bearing mold. International Application International Publication Date of Entry into the Country Patent Agency Guangzhou Zhiyou Patent Agency Co., Ltd. Agency Address Zhou Keyou
