How to Plastics extrusion?

Extruder screw for a multi-screw extruder for plastics extrusion,Extrusion device for mold production,Crushing type plastic extruder,Plastic extruder

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4 results about "Plastics extrusion" patented technology

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Plastics extrusion is a high-volume manufacturing process in which raw plastic is melted and formed into a continuous profile. Extrusion produces items such as pipe/tubing, weatherstripping, fencing, deck railings, window frames, plastic films and sheeting, thermoplastic coatings, and wire insulation.

Extruder screw for a multi-screw extruder for plastics extrusion

ActiveUS20200282369A1Shorten the timeIncrease contact areaRotary stirring mixersTransportation and packagingPolymer scienceEngineering

An extruder screw for a multi-screw extruder for plastics extrusion includes: a feeding and metering zone for melting and homogenizing the plastic and an evacuating zone for carrying away gaseous constituents and a compressing and / or discharging zone; a multi-screw section, which has a plurality of planetary screws, which lie open on the outer circumference of the extruder screw, at least over part of their length; and a driving zone, in which the planetary screws engage by way of a toothing in an external toothing on a central shaft or in an internal toothing in a stator ring or in the inner wall of an extruder bore of the multi-screw extruder. The feeding and metering zone extends into the multi-screw section, wherein the respective part of the planetary screws that is lying in the metering zone is at least partially enclosed.

Owner:GNEUSS GMBH

Extrusion device for mold production

InactiveCN111086188AGuaranteed mixing effectPerfect extrusionPlastic materialsElectric machinery

The invention discloses an extrusion device for mold production, and relates to the technical field of molds. The problem that when an existing extrusion device for mold production conducts extrusionthrough a screw, the stirring performance of plastic in the extrusion device is not perfect enough, the overall working performance is not stable enough need to be solved. One side of a plastic extrusion stirring main box is provided with a feeding stirring extrusion box, the feeding stirring extrusion box is in welding connection with the plastic extrusion stirring main box, and the middle position of the upper portion of the plastic extrusion stirring main box is provided with a plastic material discharging box; an auxiliary discharging box is installed on the upper portion of the feeding stirring extrusion box, one side of the feeding stirring extrusion box is provided with a heating block, and the other side of the feeding stirring extrusion box is provided with an extrusion mold; andthe other side of the extrusion mold is provided with a second installation extrusion mold, and the other side of the plastic extrusion stirring main box is provided with a rotary motor.

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Owner:苏州巨模模具有限公司

Crushing type plastic extruder

InactiveCN110802818AImprove crushing effectEasy dischargeElectric machineGear wheel

The invention discloses a crushing type plastic extruder. A main crushing device is composed of a motor, a first rotating shaft, a driving gear, a plurality of first stirring blades and a pressing plate. The motor is installed on the middle part of the upper end of a box body, the output end of the motor is connected with the first rotating shaft, and the other end of the first rotating shaft penetrates through the top wall of the box body and reaches the inside of an extrusion device. The multiple first stirring blades are connected to the side wall of the section, located in the box body, ofthe first rotating shaft at equal distances in the circumferential direction. The extrusion device includes an extrusion box, a filter plate and a spiral rod. The upper end of the extrusion box fixedly penetrates through the middle part of the lower end of the box body. The upper end of the inner side wall of the extrusion box is fixedly connected with the filter plate. The spiral rod is movablyconnected to the filter plate in an inserted mode, and the upper end of the spiral rod is fixedly connected with the lower end of the first rotating shaft. The crushing type plastic extruder has the characteristics that the crushing effect is good and the work efficiency is improved, and is high in practicability.

Owner:NANJING LINGYA AUTOMOBILE TECH RES INST

Plastic extruder

InactiveCN107553868AIncrease squeezeHelp stirringHelical lineReduction drive

The invention discloses a plastic extruder. The plastic extruder comprises a main shaft, a fixed cutter set, a movable cutter set, a rack, a main motor, a reducer and a heating and curing barrel, wherein the main motor, the reducer and the heating and curing barrel are arranged on the rack. The movable cutter set is composed of multiple movable cutters. The multiple movable cutters are arranged onthe surface of the main shaft and distributed in the direction of a helical line in a spaced manner. The main shaft is arranged in the heating and curing barrel. The fixed cutter set is composed of multiple fixed cutters. The multiple fixed cutters are arranged on the inner surface of the heating and curing barrel and staggered with the multiple movable cutters in the movable cutter set. The mainmotor drives the main shaft to rotate through the reducer. The movable cutter set rotates along with the main shaft. The movable cutter set is matched with the fixed cutter set, so that a rubber mixed material is extruded and stirred. The rubber mixed material is pushed to the discharging end of the heating and curing barrel through the movable cutter set. A discharging hopper is arranged at thedischarging end. Due to improvement of a mixed material heating and extruding device, extrusion conducted on the mixed material is reinforced; and the plastic extruder is more helpful to stirring of the mixed material, and the mixed material can be more uniform.