Rotational molding forming device

A technology of rotating molds and forming molds, applied in the coating and other directions, can solve the problems of poor temperature control accuracy and temperature uniformity, low heat transfer efficiency on the mold surface, and high mold cost, so as to improve the temperature control accuracy, avoid heat loss, and improve product quality. good quality effect
CN102120352AActive Publication Date: 2011-07-13BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2011-07-13

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Abstract

The invention discloses a rotational molding forming device applying constant-temperature jet-propelled heating, belonging to the technical field of rotational molding. The rotational molding forming device is used for manufacturing large and medium plastic products with complicated shapes by using a rotational molding technology. The rotational molding forming device mainly comprises an air heating system, a forming die, a gas recycling cover, an insulating layer, a hot air distributing pipe, a nozzle, a rotational spindle cylinder, a crank arm, a hot air inlet pipe and a hot air distributing pipe air outlet pipe. Polymers capable of being applied to rotational molding forming can be processed into plastic products by using the device. According to the invention, the deficiency in several kinds of rotational molding more widely applied to the rotational molding forming device is solved to a certain degree. The novel rotational molding forming device has the advantages of high temperature control precision, good temperature uniformity, high heat exchange efficiency and low die cost, and overcomes the defects of large energy loss, long production period, low production efficiency and the like of the rotational molding forming device.
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Description

Technical field

[0001] The invention relates to a rotary moulding device applying constant temperature jet heating, belonging to the technical field of rotary moulding. Background technique

[0002] Rotational molding is a process for forming hollow plastic products, also known as rotational molding or rotational molding. The rotational molding process is to add plastic powder into the mold, and then heat the mold and make it continuously rotate along two mutually perpendicular axes. Under the action of gravity and heat, the resin in the mold is gradually uniformly coated and melted and adhered to the inner surface of the mold. , Forming the required shape, and then cooling to obtain the product. Compared with the extrusion, injection and blow molding processes commonly used in plastic molding, the rotational molding process has the advantages of less equipment and mold investment, suitable for the production of large and medium-sized and thin-walled plastic products, and the pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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