An apparatus for through thickness reinforcement of a fibrous preform includes an actuating textile needle, a feeder spool configured to supply a veil cloth, and a take up spool. The feeder spool and take up spool can rotate to cause a portion of the veil cloth to translate such that a needled portion of the veil cloth is received by the take up spool and an unneedled portion of the veil cloth is provided for subsequent needling by the textile needle. In this manner, the veil cloth is only momentarily supplied to the fibrous preform for providing the through thickness fibers and removed from the fibrous preform before subsequent processing of the fibrous preform. The textile needle, feeder spool, and take up spool can be mounted to a common apparatus (e.g., a housing) such that the entire assembly is moveable together as a single unit.

An apparatus for through thickness reinforcement of a fibrous preform includes an actuating textile needle, a feeder spool configured to supply a veil cloth, and a take up spool. The feeder spool and take up spool can rotate to cause a portion of the veil cloth to translate such that a needled portion of the veil cloth is received by the take up spool and an unneedled portion of the veil cloth is provided for subsequent needling by the textile needle. In this manner, the veil cloth is only momentarily supplied to the fibrous preform for providing the through thickness fibers and removed from the fibrous preform before subsequent processing of the fibrous preform. The textile needle, feeder spool, and take up spool can be mounted to a common apparatus (e.g., a housing) such that the entire assembly is moveable together as a single unit.

The specification discloses a continuous polyester fiber textile cloth that can be torn into pieces, processing equipment and a processing method. By ultrasonic hot-melting technology, the polyester fiber textile cloth is subjected to the high temperature generated by the high frequency generated by the action of a metal knife mold and an ultrasonic welding head, so that the thread of the loop layers and the base layer are melted in a line to form a thin line melting body that can be torn apart. The knife mold and the ultrasonic welding head are close to each other and resonate to generate heat. When they leave each other, the resonance disappears and the heat decreases, so as to realize the formation and temperature control of a linear high temperature zone.

A method for performing a through thickness reinforcement process on a fibrous preform includes moving a plurality of needles from a retracted position to an extended position with respect to a housing. The method further includes penetrating a veil cloth and the fibrous preform with the plurality of needles, moving a through thickness fiber from the veil cloth at least partially into the fibrous preform in response to the fibrous preform being penetrated with the plurality of needles, moving the plurality of needles from the extended position to the retracted position, rotating a feeder spool and a take up spool to move the veil cloth with respect to the fibrous preform, and lifting a needled portion of the veil cloth from the fibrous preform in response to the feeder spool and the take up spool rotating.

A method for performing a through thickness reinforcement process on a fibrous preform includes moving a plurality of needles from a retracted position to an extended position with respect to a housing. The method further includes penetrating a veil cloth and the fibrous preform with the plurality of needles, moving a through thickness fiber from the veil cloth at least partially into the fibrous preform in response to the fibrous preform being penetrated with the plurality of needles, moving the plurality of needles from the extended position to the retracted position, rotating a feeder spool and a take up spool to move the veil cloth with respect to the fibrous preform, and lifting a needled portion of the veil cloth from the fibrous preform in response to the feeder spool and the take up spool rotating.

A device is for holding a vibrating steel blade on a blade holder of a cutting machine, and includes a blade holder having a notch able to receive an upper end of a blade, means for holding by magnetism the upper end of the blade in the notch of the blade holder along a direction perpendicular to a longitudinal axis of the blade, and at least one lug formed in the notch and able to be housed in a cutout made in the upper end of the blade to ensure an absorption of the cutting forces.

The present disclosure relates to manufacturing an inflatable structure. There is determined one or more contours of at least a portion of an inflatable structure to be manufactured. There is further provided a drop stitch fabric having a first layer and a second layer tethered by drop stitches. Moreover, there is provided along at least a portion of the drop stitch fabric one or more fixation lines comprising coupling means fixating the first layer to the second layer, the one or more fixation lines corresponding to the one or more contours. Furthermore, the drop stitch fabric is coated, wherein one or more coating layers cover at least the one or more fixation lines. The disclosure also relates to an inflatable structure manufactured according to the foregoing, and a control system for controlling said manufacturing.

The present disclosure relates to manufacturing an inflatable structure. There is determined one or more contours of at least a portion of an inflatable structure to be manufactured. There is further provided a drop stitch fabric having a first layer and a second layer tethered by drop stitches. Moreover, there is provided along at least a portion of the drop stitch fabric one or more fixation lines comprising coupling means fixating the first layer to the second layer, the one or more fixation lines corresponding to the one or more contours. Furthermore, the drop stitch fabric is coated, wherein one or more coating layers cover at least the one or more fixation lines. The disclosure also relates to an inflatable structure manufactured according to the foregoing, and a control system for controlling said manufacturing.

The invention is directed towards an automated shearing system for shearing a carpet from a first height to a desired height. Such system may include a number of pile height sensors, control units, shear heads, motors, and databases. The system determines how much carpet can be sheared by each shear head and actuates the shear head accordingly. Shearing a carpet to a desired height may require about one up to about three passes through the system. Methods of measuring a carpet, determining how much to shear the carpet, and shearing the carpet are included.

The invention is directed towards an automated shearing system for shearing a carpet from a first height to a desired height. Such system may include a number of pile height sensors, control units, shear heads, motors, and databases. The system determines how much carpet can be sheared by each shear head and actuates the shear head accordingly. Shearing a carpet to a desired height may require about one up to about three passes through the system. Methods of measuring a carpet, determining how much to shear the carpet, and shearing the carpet are included.