Barmag Barmer Maschinenfabrik Ag

Barmag Ag

Peter Dammann

Heinz Schippers

Karl Bauer

Hellmut Lorenz

Klaus Bartkowiak

Herbert Turk

Herbert Schiminski

Detlev Oberstrass

Benno Frank

Hermann Kubler

Erich Lenk

Siegfried Morhenne

Michael Hanisch

Michael Pyra

Herbert Streppel

Hans-Peter Berger

Friedrich Urbahn

Roland Maier

Manfred Bussmann

Horst Beifuss

Wilfried Mundelein

A yarn texturing machine for texturing and winding a yarn, wherein the feed system withdraws the yarn from a texturing device and advances it to a takeup device. Between the feed system and the takeup system, a yarn accumulation or free space is provided for the purpose of receiving the yarn that has slackened during a package doff due to an overfeed. To withdraw the yarn reliably from the feed system, a conveying nozzle is positioned between the feed system and the free space, and the conveying nozzle includes at least one nozzle bore that is directed in the direction of the advancing yarn, so that an air stream directed through the bore toward the yarn generates a tension on the yarn in the direction of its advance. Subsequently, the yarn is blown into the free space.

Apparatus for processing and winding a yarn

An apparatus and a method for guiding and cutting a continuously advancing yarn during a package doff in a takeup device. In this connection, a movable yarn guide guides the yarn substantially parallel to a package or a winding tube, which is driven by a drive roll. The yarn guide is followed by a suction device, which consists of a pneumatic suction inlet end and a cutting device. The suction device cooperates with a transfer device for purposes of cutting the yarn during the package doff and receiving the loose end of the advancing yarn. To protect the yarn during the package doff, the yarn guide extends in the yarn path upstream of the driven tube, and the suction device downstream thereof. For catching the yarn and winding initial layers thereof on a new winding tube that is driven by the drive roll, the yarn is guided in a yarn guide groove provided on the circumference of the drive roll or on the circumference of the new winding tube so that the yarn is protected within the contact zone between the accelerating winding tube and the drive roll.

Apparatus and method for guiding and cutting an advancing yarn during a package doff

A yarn winding apparatus and a method for winding a continuously advancing yarn on a driven tube. A bobbin tube is clamped between two clamping plates that are rotatably supported on a package holder, and one of the clamping plates includes in its front edge facing the tube a catching slot with a catching nose that is directed in the direction of rotation, and a clamping slot for clamping the yarn. For purposes of threadup, the yarn is guided by a yarn guide and a suction device to the front edge of the clamping plate in such a manner that the yarn and the clamping plate move essentially in the same direction. To guide the yarn after having dropped into the catching slot, reliably to a lead-in plane of the clamping slot, the clamping plate has in its front edge a recess which undercuts the catching nose and the catching slot and forms a guiding edge on the edge of the clamping plate.

Yarn winding apparatus and method

A yarn false twist texturing apparatus which includes a serially arranged heater, cooling device, and twisting unit. In order to collect and remove the oil vapors arising within the false twist zone, the cooling device is configured as an elongate hollow body, and the yarn is conveyed for cooling in contact with the inside wall of the hollow body. A vapor extraction system is provided which communicates with the interior of the body. In another embodiment, a tubular protective body is arranged between the heater and the cooling device, and the interior chamber of the tubular protective body encloses the yarn and is connected to an extraction device. The advancing yarn may be wetted with a cooling fluid at a location between the heater and the cooling device, to facilitate the volatilization of the oil constituents in the yarn as well as cool the yarn.

Yarn false twist texturing apparatus

A yarn false twist crimping machine which comprises a processing frame which mounts the yarn processing components, a creel for mounting the yarn packages, and a take-up frame which is laterally spaced from the processing frame on the side thereof opposite the creel so as to define an operator aisle therebetween. An elongate heater is mounted to the take-up frame and an elongate cooling plate is mounted to the processing frame, and a false twist unit is mounted to the processing frame below the outlet end of the cooling plate. The yarn is guided from the creel in a generally planar arrangement across the operator aisle and to a first yarn feed system which is mounted on the take-up frame. The yarn then advances through the heater and cooling plate to the false twist unit and so as to loop back through the plane defined by the yarns being fed from the creel. Two such machines may be mounted in a mirror image relationship so as to define a service aisle which is bordered by the take-up frames of the two machines, thereby providing for the efficient servicing of the take-up devices of the two machines.

Yarn false twist crimping apparatus

A yarn winding machine having a suction apparatus for withdrawing the severed advancing yarns during the bobbin changing operation. The suction apparatus comprises a tubular duct which extends the length of the winding machine, and the duct mounts a yarn intake tube of relatively small diameter in front of each of the side by side winding stations of the machine. A yarn is adapted to be sucked into and through each of the yarn intake tubes by the relatively high speed air current flowing therethrough, and the yarn then advances into the tubular duct and to a waste container.

Suction apparatus for withdrawing advancing yarns to a waste container

A yarn winding apparatus for winding a cross wound package, and comprising a cutting blade arranged below the traversing triangle and a yarn lifting member which is adapted for movement between positions below and above the traversing triangle. When the winding of a package is completed, the lifting member is lifted, which in turn lifts the advancing yarn from its traversing triangle, and in addition, the lifting member captures and retains the advancing yarn in a laterally fixed position. Upon the subsequent lowering of the lifting member, the captured yarn is brought into the engagement with the cutting blade and severed. In the lifted position of the lifting member, the advancing yarn also may be lifted from its reciprocating yarn guide so that a plurality of circumferential final winds are formed on the completed package.

Yarn winding apparatus with yarn cutting capability

An elongate and arcuately curved yarn heating plate of the type adapted for use in a false twist yarn crimping machine which utilizes a specific relationship between the curvature of the heating plate and the heat imparted to the yarn so as to permit the length of the heating plate to be shortened as compared to conventional lengths. More particularly, the present invention involves the shortening of the radius of curvature of the heating plate from known and accepted values, which has been found to permit the length of the heating plate to be shortened while still providing adequate heat transfer to the yarn.

False twist yarn crimping apparatus

A method for the doffing of a yarn winding machine which is composed of several side-by-side winding stations, and wherein identical packages having the same build and yarn length are produced on the several stations. The doffing procedure includes the simultaneous cutting of the yarns of all of the stations at the end of the winding cycle, the replacing of the full packages with empty bobbins, the threadup of the empty bobbins, and the simultaneous commencement of the yarn traverse at all of the stations.

Method for doffing a yarn winding machine

A yarn false twist crimping apparatus includes a curved heating plate which faces away from the service aisle. A cover is positioned to overlie the upper surface of the heating plate, and the cover is mounted for movement between a closed position covering the heating plate and an open position wherein the heating plate is uncovered. To initially thread-up a yarn, the cover is closed and the yarn is guided to an intermediate position along the outside of the cover. The advance of the yarn is then commenced, and the cover is then momentarily opened so that the yarn drops onto the heating plate.

Yarn false twist crimping apparatus and method of threading same

An apparatus for cutting an advancing yarn which comprises a cutting blade which is oriented with respect to the advancing yarn, such that when the advancing yarn and blade are moved into engagement, the yarn is deflected from its path of travel to increase its tension, and the yarn moves along the cutting edge of the blade with no substantial component of movement transverse to the cutting edge. The yarn is thus cleanly cut at a single point along its length, in the same manner as a stationary yarn is cut by hand with a knife.

Apparatus for cutting an advancing yarn

A yarn heating apparatus which is adapted for use in a yarn false twisting machine. The heating apparatus includes an elongate heating surface, and a plurality of yarn guide members mounted in a longitudinally spaced-apart arrangement along the length of the heating surface, for guiding an advancing yarn therealong in a laterally zigzagged path of travel which is adjacent but spaced from the heating surface.

Yarn heating apparatus

A method and apparatus is disclosed for the doffing of a yarn winding machine which is composed of several side-by-side winding stations, and wherein identical packages having the same build and yarn length are produced on the several stations. The doffing procedure includes the simultaneous cutting of the yarns of all of the stations at the end of the winding cycle, the replacing of the full packages with empty bobbins, the threadup of the empty bobbins, and the simultaneous commencement of the yarn traverse at all of the stations.

Method of doffing packages of a textile machine as well as a textile

A false twist crimping machine is disclosed which is adapted for processing synthetic yarn, and which includes a novel means for the thermal treatment of a yarn at high processing speeds of 1,200 meters per minute and above, and without increasing the overall size of the machine. The yarn thermal treatment means includes a yarn heating plate and a yarn cooling plate. The yarn heating and cooling plates preferably each include a curved yarn path guideway to provide efficient and reliable yarn contact of the advancing yarn with the curved guiding surfaces, and at least the yarn cooling plate extends above a service aisle provided between the central frame of the false twist crimping machine and a yarn supply creel spaced from and extending parallel to the central frame. In one preferred embodiment, the yarn heating plate comprises two side-by-side vertically directed sections which are positioned near the floor next to the creel, with the yarn being guided serially along the two sections and then upwardly to the cooling plate which extends across and above the service aisle.

Yarn false twist crimping machine

A yarn twisting apparatus is disclosed wherein a single endless belt is entrained upon first and second roller means. At least one of the roller means is rotatably driven, so that the belt segments which extend between the roller means cross in opposing face-to-face relation at a location between the roller means and so as to define a twisting zone therebetween, and a running yarn is guided through the twisting zone so as to have twist imparted thereto. In a preferred embodiment, one of the roller means comprises a pair of individual rollers which are selectively movable to permit adjustment of their lateral separation, and which in turn permits adjustment of the crossing angle of the belt segments and thus the amount of twist imparted to the running yarn. Also, the pair of rollers are preferably mounted by an arrangement which permits the pivoting of the rollers about a transverse axis which extends through the twisting zone, to thereby permit the belt segments to be separated at the twisting zone and thus facilitate yarn threadup.

Growing community of inventors

Remscheid, Germany

Peter Dammann