Inner inflatable type extruding and foaming device and forming method

• Main Authors: CAO HONGXING, XUE PING, WEN BIANYING, JIA MINGYIN
• Format: Patent
• Language: Chinese; English
• Published: 30.10.2018
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention discloses an inner inflatable type extruding and foaming device and a forming method. The inner inflatable type extruding and foaming device sequentially comprises a foaming agent supplysystem, a drive mechanism, a rack, a hopper, a machine cylinder, a screw rod, a mixing head and a foaming machine head in the material machining direction. The foaming agent supply system is connected with the screw rod. An axial hole channel is formed in the screw rod. The drive mechanism is connected with the screw rod. The tail end of the screw rod is provided with a first screw ridge. The first screw ridge is provided with a semi-closed spiral groove. A foaming air inlet is formed in the semi-closed spiral groove and communicates with the axial hole channel. Materials are fed into the screw rod from the hopper, and conveyed and fused in the machine cylinder by driving the screw rod through the drive mechanism, the foaming agent supply system conveys foaming gas into the axial hole channel, and under the rotat