Thermoplastic compositions useful for roadway markings may be produced using a continuous systems and process methods that can reduce costs and improve product quality. Systems may comprise a feed system comprising a plurality of feeders and a mixing system comprising a mixer and a smoothing system. Each feeder may be configured to discharge a material at a feed rate according to a selected product formulation The mixing system may be configured to receive, heat, and combine the materials to produce a thermoplastic material, and discharge the thermoplastic material at a determined discharge rate.

A pelletizing apparatus includes a filter device connected with a melt feed, a granulator downstream of the filter device, particularly an underwater granulator, a water treatment device, and a control means for controlling the filter device, underwater granulator, and water treatment device and adapted to provide at least one control parameter. The apparatus includes at least one machine-readable and -writable identification means for storing and providing an item of component-specific information and being associated with a component in the flow path of the melt or the process water, and a reading device communicating with the control means to receive the component-specific information from the identification means, and a writing device to write the identification means with the component-specific information, the control means to adapt the control parameter based on the component-specific information to provide the component-specific information, and, based on the component-specific information, to execute a diagnostic process.

A rubber extrusion device includes a sensor which detects a deviation from a preset reference position of a rubber extrudate extruded from an extrusion port. Based on this detection data, a control unit provides control for correction of the deviation by adjusting a position of a die relative to a head along a leading end surface of the head or a rotational speed of a screw. A rubber material is mixed and kneaded while being extruded forward by a screw installed inside a cylinder. Resultant unvulcanized rubber is fed into an extrusion flow path and extruded from the extrusion port formed in the die.

Methods for recycling plastic Nylon 6,6 from vacuum bags to obtain filaments or powder for 3D printing processes. The method to obtain filaments includes a step of providing used Nylon 6,6 vacuum bags, a quality control step to check the status of the used vacuum bags, a step to form smaller parts, such as smaller pieces or pellets, from the used vacuum bags, quality control step to check the status of the smaller pieces or the pellets, an extrusion step wherein the smaller pieces or the pellets are introduced into an extruder, where they are melted, and the molten mixture is cooled and expelled through the die of the extruder to produce the recycled filaments, and a winding step wherein the recycled filaments that go out of the extruder are rolled up in coils.

A signal acquisition unit of an abnormality detection device for a twin-screw extrusion molding machine, when the twin-screw extrusion molding machine that melts and kneads a fed resin raw material is in operation, acquires an AE output of an AE sensor installed on a surface of a housing of the twin-screw extrusion molding machine. A determination unit determines whether an abnormality occurs in the twin-screw extrusion molding machine, based on a relationship between the AE output and a first threshold and a second threshold.

A method for manufacturing a material strand assembly for a vehicle. The method includes: extruding strand material in an extruder so that an extruded material strand is produced; monitoring the quality of the extruded material strand so as to detect faults of the extruded material strand; in case of a detection of a fault, cutting out the fault from the material strand and re-joining cutting end faces, thus producing a joint, so that a faultless material strand is produced. The cutting-out step is conducted such that any two adjacent joints are at a minimum joint distance from each other. The faultless material strand is stored in a storage unit so as to produce the material strand assembly. The extruded material strand is passed through a first strand accumulator between the extruder and the cutting arrangement and through a second strand accumulator between the cutting arrangement and the storage unit.

Thermoplastic compositions useful for roadway markings may be produced using a continuous systems and process methods that can reduce costs and improve product quality. Systems may comprise a feed system comprising a plurality of feeders and a mixing system comprising a mixer and a smoothing system. Each feeder may be configured to discharge a material at a feed rate according to a selected product formulation The mixing system may be configured to receive, heat, and combine the materials to produce a thermoplastic material, and discharge the thermoplastic material at a determined discharge rate.

The disclosure provides a method for separating scrap produced during the manufacture of extruded sheets, wherein an extrudate of an extruder is fed to a calender comprising a plurality of temperature-controlled calender rollers, an actual temperature of at least one calender roll is measured, the actual temperature is compared with a nominal temperature provided for this calender roller, and in the case that a difference between the actual temperature and the nominal temperature lies outside a predefined tolerance amount, a part of an in particular endless semi-finished product exiting the calender is discharged as scrap. By treating that part of the semi-finished product which has been exposed to the wrong temperature as scrap, it is particularly easy to identify sheets that do not meet the desired quality requirements essentially without additional measuring effort, so that it is possible to easily discharge scrap produced during the manufacture of extruded sheets.

A rubber extrusion device includes a sensor which detects a deviation from a preset reference position of a rubber extrudate extruded from an extrusion port. Based on this detection data, a control unit provides control for correction of the deviation by adjusting a position of a die relative to a head along a leading end surface of the head or a rotational speed of a screw. A rubber material is mixed and kneaded while being extruded forward by a screw installed inside a cylinder. Resultant unvulcanized rubber is fed into an extrusion flow path and extruded from the extrusion port formed in the die.

The invention relates to various aspects in the production and further processing of plastic sheet material, in particular a spun-bonded non-woven fabric, a melt-blown non-woven fabric, a composite non-woven fabric, a blown film, a flat film, a plastic board or a plastic panel. A core aspect in the value chain of sheet material is a method and device for providing, retrieving and using a data element for exchanging in an over-lapping step-wise manner, a plurality of different data elements for producing the end product within the value chain of the sheet material. Within the value chain, it is possible to optimize the method using said data, to improve the construction of the used machines and systems and to improve the system technology as well as method technology for producing the sheet material.