WO2023061690A1 - Peigneuse - Google Patents

Peigneuse Download PDF

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Publication number
WO2023061690A1
WO2023061690A1 PCT/EP2022/075546 EP2022075546W WO2023061690A1 WO 2023061690 A1 WO2023061690 A1 WO 2023061690A1 EP 2022075546 W EP2022075546 W EP 2022075546W WO 2023061690 A1 WO2023061690 A1 WO 2023061690A1
Authority
WO
WIPO (PCT)
Prior art keywords
detaching
roller
combing
rollers
segments
Prior art date
Application number
PCT/EP2022/075546
Other languages
German (de)
English (en)
Inventor
Nicole Saeger
Roland Friedrich
Original Assignee
Trützschler Group SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trützschler Group SE filed Critical Trützschler Group SE
Priority to EP22789196.7A priority Critical patent/EP4416325A1/fr
Priority to CN202280069093.6A priority patent/CN118159697A/zh
Publication of WO2023061690A1 publication Critical patent/WO2023061690A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/18—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously

Definitions

  • the present invention relates to a combing machine according to the preamble of claim 1.
  • the fiber tuft combed out by the circular comb lies on this rear end section and is pulled together with it into the nip point of the detaching rollers, since the detaching rollers change their direction of rotation again.
  • the fiber tuft is torn off the batting lying in the nipper unit.
  • the rear end of the torn off tuft is pulled through the top comb.
  • the detaching rollers carry out a pilger stepping motion, whereby when they rotate back they return an end piece of the fiber tuft that was drawn off during the previous comb game. The beginning of the fiber tuft is placed on this end piece and soldered together by the pressure of the two detaching rollers after a reversal of the direction of rotation.
  • the detaching rollers not only have to change their direction of movement twice with each comb play, they also have to turn a shorter distance on the reverse than on the forward.
  • a cam disk, cam disk or cam groove is often used, which is firmly coupled to the movement of the tongs via a gear.
  • the individual components of the combing machine are usually controlled by a motor that is coupled to one another.
  • Driven gear combination which is arranged on one side of the combing machine and thus causes a corresponding twisting of the shafts over the drive length. This twisting of the shaft is undesirable since it results in inaccuracies in the delivery of at least eight fiber slivers from the combing heads. If the comber is to achieve higher productivity, the number of combing heads is increased, since the back-step movement has reached its limit at around 700 cycles per minute. However, this further increases the torsion in the drive shafts, since these have to be longer by 10 to 16 combing heads.
  • a combing machine is known from EP 2397584 B1, in which the two pairs of detaching rollers are driven from both sides of the combing machine.
  • the driven detaching rollers have a separate drive motor at each end, which are synchronized with one another but can be controlled independently of the entire drive-gear combination of the comber.
  • the torsion of the detaching rollers can thus be significantly reduced, which also reduces the energy consumption of the comber.
  • the invention is based on the object of further developing a combing machine in which the disadvantages of the drive concept are eliminated and with which the assembly of the detaching rollers is simplified.
  • the invention relates to a combing machine that is designed to produce combed fibers with at least one combing head with a feed device.
  • the feed device can be designed as a support for cotton rolls, or as a feed device for cans discarded slivers.
  • the at least one combing head has at least one feed cylinder, which is designed to feed interconnected fibers from the feed device to a gripper unit.
  • the pliers unit is designed to clamp the fibers that are connected to one another.
  • At least one pair of detaching rollers are arranged downstream of the nipper unit and are designed to tear off the clamped fibers from the nipper unit. Each pair of at least one detaching roller has a detaching roller that is driven from both sides by a drive.
  • the invention includes the technical teaching that the at least one detaching roller driven from both sides has a separation point or is formed from two separate segments, so that this detaching roller can be driven simultaneously on both sides in different directions of rotation. Due to the possibility of driving the detaching roller on both sides and simultaneously in different directions of rotation, a torque balance between the two drive motors is achieved, so that the detaching rollers are not loaded with opposing torsion. As a result, the drive motors consume less energy and heat up less, which means that a higher number of comb cycles is achieved in combing operation. Driving the at least one detaching roller in a different direction of rotation also enables the technological advantage that the detaching roller can be operated with a different detaching curve for groups of combing heads.
  • the at least one divided detaching roller can deliver different sliver masses over the length of the combing machine.
  • This can be the first or second detaching roller after the gripper unit, depending on the desired mode of operation.
  • the function of the second detaching roller can be taken over by another element, such as a suction belt or roller.
  • both detaching rollers driven on both sides are usually designed in such a way that they can be actuated simultaneously in different directions.
  • the at least one detaching roller can have a separation point, so that the continuous detaching roller is designed separately.
  • the detaching roller can consist and be formed of two separate segments. Each segment of the detaching roller is driven by its own drive, so that the segments of a detaching roller can be operated independently of one another at the same time.
  • the first segment of the detaching roller which is assigned to the combing heads with the furthest distance from the drafting system, can be operated with a different detaching curve than the second segment. This means, for example, that a slightly higher sliver number can be generated, since these are subject to greater distortion over the longer transport route to the drafting system.
  • the associated upper—non-driven—detaching roller is preferably divided to correspond to the lower, driven detaching roller. Wear of the detaching rollers can thus be minimized and distortion of the fiber tuft or the fiber web soldered on can be avoided.
  • the technological need for a divided upper detaching roller depends on the difference between the different detaching curves.
  • this bearing point can be formed as a loose bearing.
  • the fixed bearing of the segments is then arranged on the frame of the comber in the area of the drive motors. It is then no longer necessary to connect the two segments to one another. This simplifies the assembly of the combing machine.
  • the segments of the detaching roller can be connected in the area of the separation point by means of a bearing shell, which is designed to allow the segments to rotate in opposite directions. Both segments or parts of the separate detaching roller are supported in a common bearing shell, which facilitates the construction and alignment of the segments of the detaching rollers to one another.
  • the detaching roller thus has two separate segments which, however, are mounted in alignment in the axial direction via the bearing shell. The two segments can be driven simultaneously and independently in different directions of rotation.
  • the head pieces or the shaft journals of the adjoining segments of the detaching roller can be pushed into bearing shells, within which the head pieces or shaft journals are mounted by means of roller bearings, preferably needle bearings.
  • the point of separation or the storage of the separated segments can be arranged symmetrically or asymmetrically between the combing heads. This results in the possibility of operating four combing heads or groups of three or five combing heads or two or six combing heads with a varying detachment curve. In the case of combing machines with more than eight combing heads, for example ten, twelve or sixteen combing heads, the division can be analogous.
  • the detaching roller can have a number of roller sections that corresponds to the number of combing heads.
  • a single roller section is provided for each combing head, which are connected to one another in the area of a bearing point. This facilitates the axial alignment of the detaching roller and the storage, and reduces the costs of manufacture and assembly.
  • Each segment of the detaching roller can have at least one roller section, preferably at least two roller sections.
  • the roller sections are preferably connected in the area of the bearing points of the detaching roller by means of threaded pins and threaded bores. A permanent connection is achieved by additional gluing or soldering or alternatively fixing the thread or the roller sections to one another, so that this section of the segment can be described as one-piece.
  • Bearing shells are mounted over the connection point so that they are centered.
  • the combing machine has two pairs of detaching rollers, preferably only one driven detaching roller is separate or consists of two segments. This is preferably the first detaching roller, which is arranged after the gripper unit, since this consumes the most energy due to the detaching movement of the tuft.
  • Both driven detaching rollers can preferably have a separation point or be formed from two separate segments, it being possible for both driven detaching rollers and/or their separate segments to be driven with different detaching curves. A smoother movement of the detaching rollers relative to one another, but also across the width of the combing machine, is thus possible, which means that energy can be saved and the sliver quality can be influenced.
  • Figure 1 a schematic lateral representation of a combing head
  • FIG. 2 a schematic representation of a drive concept for the detaching rollers of a combing machine according to the prior art
  • FIG. 3 an illustration of the detaching rollers according to the invention
  • FIG. 3a an enlarged representation of the separation point of the detaching rollers.
  • FIGS. 1 and 2 The prior art is explained below with reference to FIGS. 1 and 2, and preferred embodiments of the combing machine according to the invention are explained in FIGS. 3 and 3a.
  • the same features in the drawing are each provided with the same reference symbols.
  • the drawing is merely simplified and, in particular, is shown without scale.
  • FIG. 1 shows a prior art combing head 20, at least eight of which are mounted on a comber.
  • the combing head 20 consists, among other things, of two lap transport rollers 2, 3, on which a lap lap 1 with a winding tube lies and from which the lap 4 is unwound by a tensile load through a feed roller 7.
  • the lap transport rollers 2, 3 can be driven individually or both together.
  • the design of the lap transport rollers 2, 3, whether they are only rotating and not driven, or driven individually or both, is not relevant to the invention.
  • the wadding 4 is transferred to a feed cylinder 7 of a tong unit 5 .
  • the tong unit 5 can be driven back and forth via a lever via a shaft 6 which is connected to a gear 17 .
  • the nipper unit 5 is in a forward position and transfers the combed-out tuft to a subsequent pair of detaching rollers 10, 12, which is the first in the fiber transport direction Combs out the fiber beard presented with pliers.
  • the circular comb 8 is also drive-connected to the gear 17 .
  • Ratchet wheel fastened On the feed cylinder 7 is a not shown Ratchet wheel fastened, which is gradually rotated by the reciprocating movement of the pliers unit 5 by a pawl, also not shown, and thereby feeds the wadding sliver 4 to the pliers mouth of the pliers for combing out.
  • the lap sliver 4 is continuously unwound via the lap transport rollers 2, 3 due to the rotational movement of the lap lap 1 and reaches the feed cylinder 7.
  • the lap is then fed via the feed cylinder 7 to the nippers of the nippers unit 5 for combing out and then to that in the fiber transport direction first pair of detaching rollers 10, 12 released.
  • the end of the fiber tuft released is pulled through the top comb 9 and soldered to the previous tuft.
  • the resulting fiber web 14 is passed over a second pair of detaching rollers 11, 13 in the fiber transport direction.
  • the resulting fibrous web 14, which consists of individual pieces of tuft soldered on, is pulled through a funnel 15 by take-off rollers 16 and formed into a sliver 21 and fed to a drafting system, not shown, with the slivers also formed at the other combing heads.
  • the web emerging from the drafting system is combined into a fiber sliver, the so-called comber sliver, and transferred to a sliver coiler for storage in a can.
  • the nipper unit 5 is moved into a forward, open position, with the detaching rollers 10, 12 conveying a previously combed-out tuft with its rear end section by rotating it backwards in the direction of the front end section of the wadding clamped by the pliers.
  • the detaching rollers 11, 13 perform the same movement, so that the fibrous web 14 is moved back a little.
  • the fiber tuft combed out by the circular comb 8 lies on this rear end section and is drawn together with it into the nip of the detaching rollers 10, 12, since the detaching rollers 10, 12 and 11, 13 change the direction of rotation again.
  • the fiber tuft is torn off from the lap lying in the nippers unit 5 .
  • the rear end of the torn-off tuft is pulled through the top comb 9 .
  • the detaching rollers 10, 12, 11, 13 carry out a mit-step movement, with a reverse rotation leading back an end piece of the fiber tuft drawn off during the previous combing game.
  • the initial piece of the fiber tuft is placed on this end piece and soldered together by the pressure of the two detaching rollers 10, 12 after a reversal of the direction of rotation.
  • the detaching rollers 10, 12, 11, 13 not only have to change their direction of movement twice with each comb play, they also have to turn a shorter distance during the reverse run than during the forward run.
  • all of the combing machine components described here are driven by a motor 18 in which a complex gearing converts the movement of the gripper unit 5, top and circular combs 8, 9, and the detaching rollers 10-13 and feed roller 7.
  • a change in the movement sequence requires a fixed change in the gear 17, ie by means of an exchange of gears.
  • the productivity of the combing machine can be adjusted by means of the controller 19 .
  • FIG. 2 shows the drive concept according to the prior art of EP 2397584 B1, according to which the drive of the lower detaching rollers 10, 11 is decoupled from the drive concept of the combing machine described in FIG.
  • the detaching rollers 10, 11 are driven from both sides, each with a separate drive motor 29, 30.
  • a gear box 24 is provided at each end of the comber along the longitudinal direction.
  • Shafts 25, 26 of the detaching rollers 10, 11 are arranged parallel to one another between the gear boxes 24.
  • the ends of the shafts 25, 26 protrude into the gear boxes 24 and are stored there.
  • Gears 27, 28 are fixed to the ends of the shafts 25, 26, respectively, for integral rotation with the shafts 25, 26.
  • the gears 27, 28 are formed with the same number of teeth and the same diameter.
  • Two drive motors 29, 30, in the form of servomotors, are mounted on each gearbox 24 to drive shafts 25, 26, respectively.
  • the drive motors 29, 30 have motor shafts 29a, 30a, which protrude into the gear boxes 24, respectively.
  • Driving gears 31, 32 are fixed to the motor shafts 29a, 30a to rotate integrally therewith, respectively.
  • the drive gears 31, 32 are formed with the same number of teeth and the same diameter as the gears 27, 28.
  • Each gear 24 has an intermediate gear 33 which meshes with the gear 27 and the drive gear 31 .
  • the idler gear 34 meshes with the gear 28 and the drive gear 32.
  • the idler gears 33, 34 are formed to have the same number of teeth and the same diameter.
  • the shafts 25, 26 are driven via gear trains between the motor shafts 29a, 30a and the shafts 25, 26, and the gear trains comprise the idler gears 33, 34.
  • the shafts 25, 26 are rotated at a speed ratio of 1:1 with the Rotated motor shaft 29a or 30a.
  • the drive motors 29, 30 are synchronously driven by a controller (not shown) to rotate in the forward direction or reverse direction.
  • the shaft 25 is driven by two drive motors 29 at both axial ends.
  • the shaft 26 is driven by two drive motors 30 at both axial ends.
  • the drive motors 29 and the drive motors 30 are driven in synchronism with one another, so that the shafts 25, 26 are driven in synchronism.
  • the two shafts 25, 26 are driven by four motors. It is thus possible, using motors of the same power, to drive the detaching rollers 10, 11 with a torque which is twice the torque of the prior art.
  • the shafts 25, 26 are continuously rocked back and forth at a high speed, for example, 300 rpm, the shafts 25, 26 have a larger torsion than in a case where the shafts 25, 26 are rotated in a direction with a be rotated at a constant speed.
  • both ends of the shafts 25, 26 are driven by the drive motors 29 and 30, respectively Amount of torsion one quarter of the torsion generated in a structure where the shafts 25, 26 are driven on one side only.
  • the detaching rollers 10, 11 are divided in the middle or off-center, or the detaching rollers 10, 11 are separated in the middle or off-center.
  • the drive motors 29, 30 can drive the deflector rollers 10, 11 for example 4 combing heads in an 8-head machine, or 6 combing heads in a 12-head machine or 8 combing heads in a 16-head machine.
  • An asymmetrical division of the detaching rollers 10, 11 is also possible, for example the division for 1 and 7 combing heads or 2 and 6 combing heads or 3 and 5 combing heads.
  • each detaching roller 10, 11 consists of the same number of separate roller sections which are screwed together by means of threaded pins and threaded bores, which are not designated further, and are permanently connected with adhesive.
  • the third roller section 10c of the third combing head is connected to the fourth roller section 10d with a threaded pin in a threaded bore. Permanent attachment is achieved by gluing the thread.
  • roller sections 10c and 10d are assembled in the frame of the combing machine between the combing heads. This is done with two adjoining roller sections until the entire detaching roller 10 or 11 is mounted.
  • the detaching rollers 10, 11 are separated in eight combing heads in the middle between the combing heads four and five. To the left and right of the separation point 35, there are thus two segments of the detaching roller 10, 11, which can be driven in opposite directions of rotation.
  • both roller sections 10d and 10e or 11d and 11e are likewise connected by means of a bearing shell 37 . Inside the bearing shell 37, the head pieces or the shaft journals are mounted in a roller bearing 38, 39, which can be designed as a needle bearing.
  • the connected roller sections 10a-10d and 11a-11d can rotate to any extent against the other connected roller sections 10e-10h and 11e-11h at the separation point 35 without the roller sections being loaded with an opposing torque.
  • the separation point 35 is designed to compensate for any twisting of the roller sections, so that the two parts of the detaching roller can be operated with different detaching curves.
  • the drive motor is connected on one side with a right-hand thread and on the other side with a left-hand thread, the connections may come loose if the drive motors are not running synchronously. This loosening is avoided by the shaft separation.
  • the CV values of the sliver become more uniform across all combing heads, so that the yarn quality is improved as a result, e.g. through higher yarn uniformity.
  • the improvements that can be achieved depend on the loads that act on the detaching rollers.
  • the loads vary with the number of combing heads, the detaching curves used, the number of comb cycles set and, among other things, the pressure of the upper detaching rollers 12, 13. The higher the loads, the greater the positive effect that is achieved by separating the detaching rollers.
  • FIGS. 3 and 3a described here provides two driven deflection rollers 10, 11, which are each driven by two drive motors. Since the detaching roller 10 that is assigned closest to the gripper unit 5 has to implement the greatest drive load, energy savings would be achieved if only this detaching roller 10 is divided.
  • the second detaching roller 11, which can be driven with a different rotary cam, can be designed as a continuous detaching roller 11, as in the prior art.
  • the second pair of detaching rollers 11 can be driven with a different rotary cam than the first pair of detaching rollers 10, so that a smooth movement is generated, which also saves energy.
  • the second detaching roller 11 can be divided. This, too, can then be driven differently on each roll section of the detaching roll 11 .
  • the rear fiber slivers will produce a higher sliver number, since these are exposed to a greater degree of distortion over the transport route to the drafting system.
  • the separation of the detaching rollers 10, 11 makes it possible to drive individual areas of the combing machine, for example four combing heads each, with different detaching curves in order to achieve an optimum between fleece quality and energy use.
  • the divided detaching roller 10e-10h and 11e-11h can be operated with a different curve for these combing heads.
  • the upper, non-driven detaching rollers 12, 13 may also have to be designed with the same pitch or separation, otherwise there will be increased wear on the detaching rollers 10, 11 , 12, 13 and distortion between the lower and upper detaching rollers 10, 11 and 12, 13 can occur.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

L'invention concerne une peigneuse conçue pour produire des fibres peignées et comprenant au moins une tête de peignage (20) avec un dispositif d'alimentation, la tête de peignage (20) comportant au moins un cylindre d'alimentation (7) conçu pour acheminer des fibres reliées les unes aux autres, du dispositif d'alimentation à un ensemble pince (5) conçu pour serrer les fibres interconnectées, ainsi qu'au moins une paire de rouleaux de tirage (10, 12 ; 11, 13) conçus pour tirer les fibres serrées hors de l'ensemble pince (5), chaque paire de rouleaux de tirage (10, 12 ; 11, 13) comportant un rouleau de tirage (10, 11) entraîné des deux côtés par un entraînement, le rouleau de tirage (10, 11) entraîné des deux côtés comportant un point de séparation (35) ou étant constitué de deux segments distincts, de sorte que le rouleau de tirage (10, 11) puisse être entraîné des deux côtés dans un sens de rotation différent. L'invention se caractérise en ce que le point de séparation (35) est formé dans la zone d'un point de montage, ou en ce que les deux segments distincts sont montés ensemble dans la zone d'un point de montage.
PCT/EP2022/075546 2021-10-14 2022-09-14 Peigneuse WO2023061690A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22789196.7A EP4416325A1 (fr) 2021-10-14 2022-09-14 Peigneuse
CN202280069093.6A CN118159697A (zh) 2021-10-14 2022-09-14 精梳机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021126664.5A DE102021126664A1 (de) 2021-10-14 2021-10-14 Kämmmaschine
DE102021126664.5 2021-10-14

Publications (1)

Publication Number Publication Date
WO2023061690A1 true WO2023061690A1 (fr) 2023-04-20

Family

ID=83690317

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/075546 WO2023061690A1 (fr) 2021-10-14 2022-09-14 Peigneuse

Country Status (4)

Country Link
EP (1) EP4416325A1 (fr)
CN (1) CN118159697A (fr)
DE (1) DE102021126664A1 (fr)
WO (1) WO2023061690A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100999839A (zh) * 2006-12-25 2007-07-18 东台纺织机械有限责任公司 精梳机分离罗拉驱动装置
EP2246464A1 (fr) * 2009-04-28 2010-11-03 Marzoli Combing & Flyer S.p.A. Cylindre détacheur d'une peigneuse
EP2397584B1 (fr) 2010-06-16 2016-04-20 Kabushiki Kaisha Toyota Jidoshokki Peigne
CH711289A2 (de) * 2015-07-03 2017-01-13 Rieter Ag Maschf Kämmmaschine.
CN207749230U (zh) * 2017-12-23 2018-08-21 浙江蓝之梦纺织有限公司 一种便于更换的纺织罗拉
CN213866577U (zh) * 2020-11-20 2021-08-03 嵊州市恒嘉机械有限公司 一种耐用型纺织罗拉

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100999839A (zh) * 2006-12-25 2007-07-18 东台纺织机械有限责任公司 精梳机分离罗拉驱动装置
EP2246464A1 (fr) * 2009-04-28 2010-11-03 Marzoli Combing & Flyer S.p.A. Cylindre détacheur d'une peigneuse
EP2397584B1 (fr) 2010-06-16 2016-04-20 Kabushiki Kaisha Toyota Jidoshokki Peigne
CH711289A2 (de) * 2015-07-03 2017-01-13 Rieter Ag Maschf Kämmmaschine.
CN207749230U (zh) * 2017-12-23 2018-08-21 浙江蓝之梦纺织有限公司 一种便于更换的纺织罗拉
CN213866577U (zh) * 2020-11-20 2021-08-03 嵊州市恒嘉机械有限公司 一种耐用型纺织罗拉

Also Published As

Publication number Publication date
CN118159697A (zh) 2024-06-07
DE102021126664A1 (de) 2023-04-20
EP4416325A1 (fr) 2024-08-21

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