5results about How to "Improve extrusion quality" patented technology

The application discloses an antibacterial medical catheter gas-liquid co-assisted forming die and a method thereof. The die comprises a connecting pipe, a flow channel changing pipe, a machine head body, an extrusion outlet die and an outer die in sequence, and an extrusion channel is formed in the above structure units and is in communication with each other. Heating equipment and temperature sensing equipment are further installed. A melt flow dividing cone, a flow guide core rod body and a shaping rod body are sequentially assembled in the extrusion channel from left to right. An auxiliary gas mixing chamber and an inner auxiliary gas flow channel are formed between the melt flow dividing cone and the flow guide core rod body. The melt flow dividing cone is fixed by an inner auxiliary gas inlet bolt. A through gas inlet channel is arranged in the inner auxiliary gas inlet bolt. An inner auxiliary gas flow channel is arranged in the melt flow dividing cone. A powder metallurgy porous ring is arranged in the extrusion outlet die, and an outer liquid auxiliary liquid inlet bolt is inserted into the hollow. The gas-liquid co-assisted system is introduced to reduce the extrusion viscous resistance of the medical catheter, and the medical catheter is endowed with antibacterial properties and other functions, so that the die problem of high-quality extruded functional medical microcatheters is solved.

The utility model discloses a kind of pretreatment mechanism for PVC plastic particle hot melting, including material cylinder, the compression stirring rod of rotation installation in material cylinder inside and the hot melting cylinder of fixed setting in material cylinder inside, material cylinder top end is equipped with the reduction motor for driving the rotation of compression stirring rod.Said compression stirring rod includes taper shaft, spiral arrangement in the rotating vane of taper shaft surface and the stirring shaft rod at its bottom end, hot melting cylinder surface is equipped with several homogenization holes, and along axial fixed mounting has electric heating ring.By taper compression structure and spiral conveying cooperation, PVC plastic particle is gradually compacted and forms stable material flow in conveying process.The utility model integrates compression, heating, hot melting and mixing function in the same structure, realizes the efficient pretreatment of PVC plastic particle before entering extrusion or molding equipment, compact structure, stable operation, it is favorable to improve subsequent processing quality and production efficiency.

This invention discloses a production process for a three-mold extruder, part of an intelligent production line for GMT boards. The extruder comprises a feeder, a plasticizing mechanism, and an extrusion mechanism, along with a return liquid tank, a metering compensation mechanism, and a die end. A heat exchange sleeve is fixedly fitted onto the outer side of the plasticizing mechanism. The end of the heat exchange sleeve is equipped with an oil pipe and a circulation pump connected to the inner cavity of the return liquid tank. The end of the extrusion mechanism is connected to the interior of the die end via the metering compensation mechanism, which is fixedly installed on the surface of the return liquid tank. In this invention, by fitting a heat exchange sleeve onto the outer side of the high-temperature plasticizing structure of the extruder and using oil for temperature conduction, the temperature of the entire injection metering mechanism is uniformly controlled. The heating module inside the return liquid tank and the excess high temperature of the plasticizing structure are used for secondary heating of the plasticizing liquid at the extrusion and metering ends, ensuring the fluidity of the plasticizing liquid, making the metering more accurate, and improving the extrusion molding quality.

The utility model relates to the technical field of spraying devices, in particular to an automatic lubricating spraying device in the hot extrusion process of an aluminum bar, which comprises a storage box, a water pump and a nozzle, the bottom end of the storage box is fixedly connected with a transmission component, and one side of the transmission component is fixedly connected with a driving support component; a second rotating assembly and a first rotating assembly are installed at one end of the driving supporting assembly, the driving supporting assembly comprises a frame plate, the right side of the frame plate is fixedly connected with a machine shell of a servo motor, the tail end of a main shaft of the servo motor is fixedly connected with a rotating rod, the outer side of the rotating rod is fixedly connected with a first synchronous belt wheel, and the outer side of the first synchronous belt wheel is sleeved with a toothed belt; according to the aluminum bar turnover device, the turnover and the position of an aluminum bar are accurately controlled, it is ensured that a separant is evenly covered, adhesion is prevented, the production cost is reduced, equipment damage is reduced, and working safety is improved.

The present application relates to the technical field of aluminum material processing, and particularly relates to an aluminum material extrusion forming equipment, which comprises a main unit, an auxiliary unit, a photoelectric sensor arranged on a fixing mechanism and used for detecting the extrusion position and deviation state of the aluminum material, a positioning mechanism one arranged on the fixing mechanism and used for performing lateral flexible limiting and deviation correction on the extruded aluminum material, and a positioning mechanism two arranged on the fixing mechanism and used for guiding and correcting the upper part of the extruded aluminum material; the auxiliary structure combining detection, deviation correction, adjustment and guiding is arranged at the extrusion port of the aluminum material, so that the defects such as bending, deviation, twisting and upward bending of the aluminum material can be dynamically inhibited and corrected in the key stage of the aluminum material in the high-temperature soft state and before being shaped, the adjustable deviation correction stroke structure is arranged, the qualified rate of the finished product and the production stability are improved, the defective product rate and the production cost are reduced, and the equipment can be adapted to the continuous and efficient extrusion production of the aluminum profile.