Asselin

Asselin (societe Anonyme)

Other

Bernard Jourde

Robert Jean

Jean-Christophe Laune

Bernard Chatelet

Francois Louis

Jean-Rene Wattel

Francedillaois Louis

Fran&ccedil;ois Louis

Michel Pene

Christophe Clement

Jean-Claude Robin

Didier LeBloas

Pierre Mouchard

Jean-Pierre Bioul

A needling loom comprising needles actuated in reciprocating motion between a retracted position and a maximum penetration position through a stripping plate, a textile web to be consolidated, and a needling loom table. The stripping plate and the needling loom table bear rails and elements for rapid assembling and disassembling for either pressing the rails against fixed crosspieces for the needling loom to operate, or for releasing the pressure and cause the rails to rest on rollers for extracting and inserting the stripping plate and the table by simple transverse sliding in the passage direction of the web. The invention is useful for reducing the time for assembling and disassembling machine components such as the stripping plate and a needling loom table for maintenance operations, in particular cleaning operations.

Device for assembling and disassembling a machine part, and needling loom equipped therewith

A distributor layer moving in a reciprocating motion to deposit a web coming from a card, on an output apron to form thereon a lap designed for subsequent mechanical bonding. A front conveyor belt transporting the web up to a folding carriage and a rear conveyor belt for supporting the other surface of the web up to a depositor carriage are driven so as to have identical moving speeds in a pinching zone. In the folding carriage the web is deviated by less than 90 degrees to move in a down slope along a section, then a turning of more than 90 degrees, is first exposed, then is externally supported by a support structure. The pinching zone slopes slightly downwards. The web is likewise exposed for the turning in the folding carriage then with external support by an arrangement in a second angular surface.

Distributor layer

An installation includes a carding machine ( ), and a distributor-layer ( ) depositing the card ( ) web ( ) in a reciprocating motion on a delivery belt ( ) moving transversely. The resulting intermediate lap ( ) is conveyed to a needling loom ( ) to produce a consolidated lap ( ). A measuring station ( ) scans the consolidated lap ( ) profile and transmits it to a processing unit ( ) where the profile is compared to a set reference input by a terminal ( ). The variations in width cause a corresponding modification in the width deposited by the distributor-layer ( ) by a link ( ). The local surface weight variations cause a corresponding modification of the controls applied to the carding machine ( ) capable of longitudinally profiling the web ( ). The invention is useful for controlling an installation for obtaining a finished product.

Method for controlling the profile of a non-woven lap and related production installation

Method and devices for producing a textile fleece

The invention concerns a stretcher comprising a carriage (,) subjected to a back-and-forward motion (,) for depositing in successive segments (,) a web of fibres (,) on an outgoing conveyor (,) moving along a direction (,). In order to produce ranges of different plies in the transverse profile of the lap (,) formed on the outgoing conveyor (,) by the web deposited in mutually overlapping segments, the points of inversion of direction (,) in the backward and forward motion of the carriage are different. As a result the successive folds (,) of the same direction are differently positioned, and the number of web plies in the lap is not the same over the whole width of the lap. The invention is useful for streamlining the lap freely and accurately.

Methods and devices for producing a streamlined lap and a continuous textile product

Needling machine and associated feed control method

Alternating actuation device and needling machine provided therewith

Needling machine with sliding rod

An apparatus is provided for accurately guiding and treating textile strips of great width using a quasi-continuous roll which does not bend. The roll is used for guiding material presented in strip form, in particular a textile material which is in contact with a peripheral portion of the roll. The roll is sub-divided into tubular segments attached to one another by flanges supported by an inner ring of a ball bearing. An outer ring of the ball bearing is fixed in a collar integral with a support. In an angular region other than the one which is in contact with the material, the support, made from thin and flat sheet steel, extends radially outwardly to a region of attachment to the frame.

Guiding device using a non-bending segmented rotary roll

Brush conveyor and needling machine equipped with this conveyor

Brush conveyor and needling machine equipped with same

Two needling assemblies have needle boards and alternating motion mechanisms. A motor is provided for each needling assembly. The needling assemblies are mechanically independent of each other. The motors are connected by an angular position servo-mechanism. The needling machine is used to eliminate the mechanical resonance between needling assemblies and to diversify and facilitate the adjusting possibilities.

Needling machine and needling method related thereto

Method for forming a semifinished nonwoven product and a semifinished

Method for manufacturing a nonwoven product, a nonwoven product obtained

Growing community of inventors

Elbeuf, France

Bernard Jourde