Hollow single screw extruder with vibrating mandrel

Abstract

The invention relates to a hollow single screw extruder with a vibrating mandrel.The hollow single screw extruder comprises an extruder head, a machine cylinder, a hollow screw with an inner threaded groove, a hopper, a stand, an angular-contact bearing pack, a transmission mechanism, a motor, a fixing seat, a gear and the mandrel.The hollow screw is located in the machine cylinder and can rotate, a central hole is further formed in the hollow screw, the mandrel is located in the central hole of the hollow screw, and the hollow screw can relatively rotate between the machine cylinder and the mandrel.The machine cylinder, the hollow screw and the mandrel are coaxial.The hollow single screw extruder is characterized by further comprising a vibrator and a movement controller, a radial channel is formed in the hollow screw, the continuous inner threaded groove through in the whole length is formed in the inner wall of the central hole of the hollow screw, the vibrator is arranged on the mandrel, vibration of the vibrator is controlled by the movement controller, and the vibrator can drive the mandrel to vibrate or carry out movement in other modes.The hollow single screw extruder is simple in structure and high in heat efficiency, the plasticizing and extruding process is optimized, and the quality of extruded products is good.

Description

technical field [0001] The invention relates to a hollow single-screw extruder with a vibrating mandrel, which is mainly used for mixing, plasticizing and extruding polymer materials, and belongs to the technical field of polymer material molding equipment. Background technique [0002] Plastic extrusion molding machine is an important equipment for processing polymers. After polymers (granules, powders, etc.) enter the barrel and screw groove space through the hopper, they move forward under the push of the screw flight. Every time the screw rotates, The material moves forward for a lead, and finally turns into a molten state, and then is formed into a plastic product through the machine head, mold and other equipment. [0003] Among the many forms of screw extruders, the single-screw extruder is the earliest and most widely used one. After years of development, the single-screw extruder itself has also been changed and improved, such as the patent number "ZL200820121548. ...

AI Technical Summary

Problems solved by technology

[0003] Among the many forms of screw extruders, the single-screw extruder is the earliest and most widely used one. After years of development, the single-screw extruder itself has also been changed and improved, such as the patent number "ZL200820121548. 1" and the single-screw extruder with the authorization number "201446671U" have changed the structure of the screw, barrel or fuselage respectively in order to improve the extrusion processing performance; the existing single-screw extruder, whether it is an ordinary single-screw Both the screw extruder and the conical single-screw extruder have the characteristics of simple structure, convenient operation and relatively low production cost, but they also have their disadvantages: because the screw groove of the traditional screw is on the outer circumference of the screw, the screw and the machine The dragging, homogenizing and mixing effect of the barrel on the material in the screw groove is not particularly strong, and because the screw groove is on the outer circumference of the screw, the electric heating coil is installed outside the barrel, so the heat is lost quickly and the thermal efficiency is low. high energy consumption

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