B29C2948/92171

Blown-Form Identification in a Blown Film System
20230211540 · 2023-07-06 ·

The invention relates to a blown film system for producing a film tube made of plastics material, comprising: an annular nozzle, out of which a plastic melt having a closed cross-section can be brought; a take-up device, by means of which the plastic melt can be drawn up from the direction of the annular nozzle so as to form the film tube; an air-provision device, which is downstream of the annular nozzle when viewed in the transport direction of the film tube and by means of which an amount of air can be provided; and a calibration device, which is downstream of the annular nozzle when viewed in the transport direction of the film tube and surrounds the film tube and by means of which the outer circumference of the film tube can be delimited. At least one detector is contained that has a plurality of detection elements, by means of which electromagnetic radiation emitted or reflected at various points of the film tube can be detected, such that at least one planar region and/or contoured region of the film tube can be detected with regard to characteristic properties, wherein the detector comprises at least 32 detection elements.

Rubber extrusion device and method for manufacturing rubber extrudate

A rubber extrusion device comprises a control plate having an adjustment flow path communicating with an extrusion flow path formed in a head and an extrusion port formed in a die is interposed between the head and the die; the control plate is slid along and between the head and the die to change a position of a communication region of the extrusion flow path with respect to the adjustment flow path at a leading end opening of the extrusion flow path to set the control plate at a desired position; and unvulcanized rubber, obtained by mixing and kneading rubber material while extruding the rubber material forward with a screw, passes through the extrusion flow path and the adjustment flow path to be extruded from the extrusion port.

METHODS AND SYSTEMS FOR PROCESSING MIXED TEXTILE FEEDSTOCK, ISOLATING CONSTITUENT MOLECULES, AND REGENERATING CELLULOSIC AND POLYESTER FIBERS
20230124761 · 2023-04-20 ·

Methods and systems of the present invention use mixed textile feedstock, which may include post-consumer waste garments, scrap fabric and/or other textile materials as a raw feed material to produce isolated cellulose and other isolated molecules having desirable properties that can be used and be used in the textile and apparel industries, and in other industries. A multi-stage process is provided, in which mixed textile feed material is subjected to one or more pretreatment stages, followed by at least two pulping treatments for isolating cellulose molecules and other molecular constituents, such as polyester. The isolated cellulose and polyester molecules may be used in a variety of downstream applications. In one application, isolated cellulose and polyester molecules are extruded to provide regenerated cellulose fibers and regenerated polyester fibers having desirable (and selectable) properties that are usable in various industrial applications, including textile production.

Apparatus for correcting the bending of a molten resin and method of correcting the bending of the molten resin
09849619 · 2017-12-26 · ·

An apparatus (31) for correcting the bending of the molten resin includes a temperature-adjusting device (32) arranged surrounding an extrusion passage (12) for extruding the molten resin (8) of an extrusion die head (7) along the direction of extruding the molten resin (8), a measuring means (33) for measuring the horizontal position of the molten resin (8) extruded from an extrusion opening (20) of the extrusion passage (12), and a control means (34) for controlling the temperature-adjusting device (32) based on the results measured by the measuring means (33).

Extruded expandable barrier
09796118 · 2017-10-24 · ·

Disclosed are various embodiments of an extruded expandable barrier, and various processes and systems for manufacturing the same. Using various extrusion processes to form an extruded expandable barrier allows for a reduction in tooling costs while also allowing more flexible barrier designs. Such designs can be specifically tailored for a particular cavity or cavities to ensure that the barrier fills the cavity after expansion. In addition, design changes can occur with little to no tooling changes.

FILM-MAKING MACHINE FOR PRODUCING STRETCH FILM

A film-making machine that produces stretch film includes an outlet device with an outlet gap for outlet of free-flowing film material and a rotatably mounted casting roll that receives the released free-flowing film material on a surface of the casting roll, and a cleaning device with a rotatably mounted cleaning roll that contacts the film material lying on the surface of the casting roll, wherein the cleaning device has an adjusting mechanism with a circumferential adjustment that adjusts a cleaning position of the cleaning roll along a circumferential direction of the casting roll.

Rubber extrusion device and method for manufacturing rubber extrudate

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.

AUTOMATIC PRODUCTION LINE FOR CONDUCTIVE TAPE AND A MANUFACTURING METHOD FOR CONDUCTIVE TAPE
20230264405 · 2023-08-24 ·

The present invention relates to the technical field of wire-rod production equipment, in particular relates to an automatic production line for conductive tape and a manufacturing method for conductive tape, Automatic production of conductive tape brings about high production efficiency and low cost; it not only conducts pretreatment and corresponding detections of the conductors in the production process but also conducts follow-up treatment and corresponding detections of the conductive tape and thus improves the production quality of the conductive tape; in addition, it marks the abnormality position of the conductive tape which is abnormal during the withstand voltage detection so that the operator can accurately find out the abnormal section of the conductive tape.

Monitoring Method for Monitoring a Film Bubble in a Discharge Region Downstream of a Discharge Nozzle of a Blown Film Device
20220016822 · 2022-01-20 ·

The invention relates to a monitoring method for monitoring a film bubble (FB) in a discharge region (112) downstream of a discharge nozzle (110) of a blown film device (100), comprising the following steps: optically detecting at least one contour parameter (KP) of a film contour (FK) of the film bubble (FB) in the discharge region (112), comparing the at least one detected contour parameter (KP) with a specific preset value (VW), determining a contour deviation (KA) between the at least one detected contour parameter (KP) and the specific preset value (VW), outputting the contour deviation (KA) as monitoring result (UE).

METHODS AND SYSTEMS FOR PROCESSING MIXED TEXTILE FEEDSTOCK, ISOLATING CONSTITUENT MOLECULES, AND REGENERATING CELLULOSIC AND POLYESTER FIBERS
20210340350 · 2021-11-04 ·

Methods and systems of the present invention use mixed textile feedstock, which may include post-consumer waste garments, scrap fabric and/or other textile materials as a raw feed material to produce isolated cellulose and other isolated molecules having desirable properties that can be used and be used in the textile and apparel industries, and in other industries. A multi-stage process is provided, in which mixed textile feed material is subjected to one or more pretreatment stages, followed by at least two pulping treatments for isolating cellulose molecules and other molecular constituents, such as polyester. The isolated cellulose and polyester molecules may be used in a variety of downstream applications. In one application, isolated cellulose and polyester molecules are extruded to provide regenerated cellulose fibers and regenerated polyester fibers having desirable (and selectable) properties that are usable in various industrial applications, including textile production.