Screw feeding device for large blow molding machine

Abstract

The invention discloses a screw feeding device for a large blow molding machine. The screw feeding device comprises a hopper. A conveying pipe is connected to the hopper. A limiting device is detachably mounted at the bottom of the hopper. A feeding joint is detachably mounted at the bottom of the limiting device and comprises a storage cavity mounted below the limiting device. A rear opening is arranged on the rear wall of the storage cavity. A blocking pipe extending backwards is fixedly mounted in the rear opening, and a blocking piece is arranged at the tail end of the blocking pipe. A front opening is arranged on the front wall of the storage cavity, and a connecting pipe extending forwards is fixedly mounted in the front opening. A fixed disc is mounted in the blocking pipe, the inner side of the fixed disc is fixedly connected with the blocking piece, and the outer side of the fixed disc is connected with a rotating bearing. The other end of the rotating bearing is rotationallyconnected with a driven disc. When rotating, a conveying packing auger rotates around the rotating bearing, friction with the blocking piece is avoided, the service life of the blocking piece is prolonged, and noise is lowered; and the feeding direction can be changed by replacing the limiting device, and resources can be saved.

Description

technical field [0001] The invention relates to the technical field of blow molding devices, in particular to a feeding device for a large blow molding machine. Background technique [0002] After the liquid plastic is sprayed out, the plastic body is blown and attached to a mold cavity of a certain shape by using the wind force blown out by the machine to make a product. This kind of machine is called a blow molding machine. Large-scale blow molding machines generally have relatively high equipment and raw materials The particles need to be transported from the ground to a high-level heating device through a feeding device for melting. The currently used feeding device is a screw feeding device. The screw feeding device includes a hopper, and the bottom of the hopper is connected to a feeding pipe. There is a conveying auger installed in the material pipe, and the discharge end of the conveying auger is connected with a motor. The feeding end of the conveying auger leans ag...

AI Technical Summary

Problems solved by technology

[0002] After the liquid plastic is sprayed out, the plastic body is blown and attached to a mold cavity of a certain shape by using the wind force blown out by the machine to make a product. This kind of machine is called a blow molding machine. Large-scale blow molding machines generally have relatively high equipment and raw materials The particles need to be transported from the ground to a high-level heating device through a feeding device for melting. The currently used feeding device is a screw feeding device. The screw feeding device includes a hopper, and the bottom of the hopper is connected to a feeding pipe. There is a conveying auger installed in the material pipe, and the discharge end of the conveying auger is connected with a motor. The feeding end of the conveying auger leans against the blocking piece at the sealing end of the conveying pipe. Loud noise, and it is easy to damage the plugging end piece; in addition, the installation angle of the feeding pipe of the existing feeding device is fixed, and one feeding device can only realize one feeding angle. When loading equipment, it is necessary to replace another feeding device to change the feeding angle, which is a waste of resources

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