D01G21/00

Production control in a blow room

A system and corresponding method are provided for controlling production in a blow room, the blow room including a controller, a supplying machine having a supplying part, and a machine to be supplied that has a filling level measurement. The supplying machine and the machine to be supplied are connected to the controller. A production area is defined for the supplying machine and includes a minimum production and a maximum production. Production of the supplying part of the supplying machine is determined based on a filling level of the filling level measurement. When production of the production area drops below the minimum production, the supplying part of the supplying machine is shut down, the shutdown taking place independently of the filling level of the machine to be supplied.

METHOD AND APPARATUS FOR PROCESSING FIBERS

A process and an installation for producing a yarn in accordance with an airjet-spinning method. A carded fibre sliver is subjected to more than three-fold drawing without levelling at a carding machine and deposited in a can (C). At least nine fibre slivers are fed draftfree from cans (C) to a draw frame and subjected to at least 8.5-fold drawing to form a fibre sliver and deposited in a can (C1). The fibre sliver in the cans (C1) is then fed to a spinning station of an airjet-spinning machine.

METHOD AND APPARATUS FOR PROCESSING FIBERS

A process and an installation for producing a yarn in accordance with an airjet-spinning method. A carded fibre sliver is subjected to more than three-fold drawing without levelling at a carding machine and deposited in a can (C). At least nine fibre slivers are fed draftfree from cans (C) to a draw frame and subjected to at least 8.5-fold drawing to form a fibre sliver and deposited in a can (C1). The fibre sliver in the cans (C1) is then fed to a spinning station of an airjet-spinning machine.

Web stretching device disposed between a carding device and a cross-lapper

Apparatus for forming a fibre mat, in particular a non-woven mat, comprising a fibre web-forming device, for example a card, a cross-tapper and a device for drafting the fibre web(s) disposed between the web forming device and the cross-lapper in order to draft the fibre web(s), in particular in a time-varying, specifically periodic manner, to thereby adjust a predetermined desired profile of the fibre mat leaving the cross-lapper, the web-forming device comprising at least one output belt (1, 2) for at least one web (5, 6), and preferably two output belts (1, 2) for two webs (5, 6), an upper and lower web respectively; wherein the cross-hipper has an input belt (7) for receiving the web(s) from the output belt(s) of the web forming device, characterised in that the arrangement is such that the path of the web, or of the at least one web, and preferably of the two, upper and lower, webs, between the output belt(s) of the web-forming device, in particular the card, and the input belt of the cross-lapper includes at least one inflection point (11, 12).

Web stretching device disposed between a carding device and a cross-lapper

Apparatus for forming a fibre mat, in particular a non-woven mat, comprising a fibre web-forming device, for example a card, a cross-tapper and a device for drafting the fibre web(s) disposed between the web forming device and the cross-lapper in order to draft the fibre web(s), in particular in a time-varying, specifically periodic manner, to thereby adjust a predetermined desired profile of the fibre mat leaving the cross-lapper, the web-forming device comprising at least one output belt (1, 2) for at least one web (5, 6), and preferably two output belts (1, 2) for two webs (5, 6), an upper and lower web respectively; wherein the cross-hipper has an input belt (7) for receiving the web(s) from the output belt(s) of the web forming device, characterised in that the arrangement is such that the path of the web, or of the at least one web, and preferably of the two, upper and lower, webs, between the output belt(s) of the web-forming device, in particular the card, and the input belt of the cross-lapper includes at least one inflection point (11, 12).

Former head and an apparatus comprising such a former head
11946179 · 2024-04-02 · ·

The invention relates to a former head of the kind which is used for forming, such as dry forming, of a fibrous web, where fibers are supplied to the former head mixed with air via at least one injection inlet. The former head comprising: a) a roller being rotatable in a rotation direction around a rotation axis and comprising: a roller surface surrounding the rotation axis, and a plurality of projections extending outwardly, such as radially outwardly, from the roller surface, b) a screen extending along at least part of the roller surface above the rotation axis, the roller surface and the screen defining therebetween a peripheral gap, and c) the injection inlet, wherein the injection inlet is positioned to conduct the mixture of the fibers and air into the peripheral gap in a delivery direction opposite or substantial opposite to the rotation direction of the roller.

Former head and an apparatus comprising such a former head
11946179 · 2024-04-02 · ·

The invention relates to a former head of the kind which is used for forming, such as dry forming, of a fibrous web, where fibers are supplied to the former head mixed with air via at least one injection inlet. The former head comprising: a) a roller being rotatable in a rotation direction around a rotation axis and comprising: a roller surface surrounding the rotation axis, and a plurality of projections extending outwardly, such as radially outwardly, from the roller surface, b) a screen extending along at least part of the roller surface above the rotation axis, the roller surface and the screen defining therebetween a peripheral gap, and c) the injection inlet, wherein the injection inlet is positioned to conduct the mixture of the fibers and air into the peripheral gap in a delivery direction opposite or substantial opposite to the rotation direction of the roller.

Device for transferring and/or introducing a fibre lap, particularly a nonwoven lap, into a consolidation installation, in particular a needle loom
11891738 · 2024-02-06 · ·

Device for transferring and/or introducing a fibre web, in particular a nonwoven web, into a consolidation installation, in particular one that is mechanical or hydraulic, for example a needle loom, comprising at least one transfer element comprising at least one roller (12), at least one saber (16) and an endless belt (13) extending between an upstream end and a downstream end so as to wrap around the roller at the upstream end and the saber at the downstream end, the at least one roller being arranged so as to drive the endless belt in rotation, and the at least one saber giving the downstream end of the belt the shape of a corner or lip, the at least one endless belt (13) being modular and consisting of links in the form of transverse strips that are articulated to one another, characterised in that the endless belt (13) consists of a plurality of sub-belts extending parallel to one another.

WEB STRETCHING DEVICE DISPOSED BETWEEN A CARDING DEVICE AND A CROSS-LAPPER
20240117532 · 2024-04-11 ·

Apparatus for forming a fibre mat including a fibre web-forming device (card), a cross-lapper and a device for drafting the fibre web(s) disposed between the web forming device and cross-lapper to draft the fibre web(s), in particular in a time-varying, specifically periodic manner, to adjust a predetermined desired profile of the fibre mat leaving the cross-lapper, the web-forming device including at least one output belt for at least one web, and preferably two output belts for two webs, an upper and lower web respectively; wherein the cross-lapper has an input belt receiving the web(s) from the output belt(s) of the web forming device, characterised in that the path of the at least one web, and preferably of the two, upper and lower, webs, between the output belt(s) of the web-forming device, in particular the card, and the input belt of the cross-lapper includes at least one bending point.

WEB STRETCHING DEVICE DISPOSED BETWEEN A CARDING DEVICE AND A CROSS-LAPPER
20240117532 · 2024-04-11 ·

Apparatus for forming a fibre mat including a fibre web-forming device (card), a cross-lapper and a device for drafting the fibre web(s) disposed between the web forming device and cross-lapper to draft the fibre web(s), in particular in a time-varying, specifically periodic manner, to adjust a predetermined desired profile of the fibre mat leaving the cross-lapper, the web-forming device including at least one output belt for at least one web, and preferably two output belts for two webs, an upper and lower web respectively; wherein the cross-lapper has an input belt receiving the web(s) from the output belt(s) of the web forming device, characterised in that the path of the at least one web, and preferably of the two, upper and lower, webs, between the output belt(s) of the web-forming device, in particular the card, and the input belt of the cross-lapper includes at least one bending point.