WO2019034680A1 - Entraînement direct d'un enrouleur de filet dans le domaine du travail des métaux - Google Patents

Entraînement direct d'un enrouleur de filet dans le domaine du travail des métaux Download PDF

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Publication number
WO2019034680A1
WO2019034680A1 PCT/EP2018/072094 EP2018072094W WO2019034680A1 WO 2019034680 A1 WO2019034680 A1 WO 2019034680A1 EP 2018072094 W EP2018072094 W EP 2018072094W WO 2019034680 A1 WO2019034680 A1 WO 2019034680A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive
rotor
winding mandrel
winding
winder
Prior art date
Application number
PCT/EP2018/072094
Other languages
German (de)
English (en)
Inventor
Peter De Kock
Walter Timmerbeul
Frank PLATE
Emir Mustafi
Original Assignee
Sms Group Gmbh
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 Sms Group Gmbh filed Critical Sms Group Gmbh
Priority to CN201880063489.3A priority Critical patent/CN111183105B/zh
Priority to EP18755467.0A priority patent/EP3668808B1/fr
Publication of WO2019034680A1 publication Critical patent/WO2019034680A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/028—Both ends type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
    • B65H2402/44—Housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/92—Electric drive
    • B65H2403/923—Synchronous motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/94—Other features of machine drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/20—Actuating means angular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/173—Metal

Definitions

  • the invention relates to a winder in metalworking, wherein the winder comprises at least one winding mandrel for winding a strip-shaped material, preferably metal material, and a drive with an electric motor.
  • winding machines are used in many places. For example, located on the inlet side of a strip processing plant a decoiler for the metal strips to be processed, while a take-up reel is provided at the outlet side. Furthermore, paper winders are used for unwinding and winding up paper liners. In the area of trimming shears, hem winder with one or two winding mandrels are used.
  • DE 28 44 882 A1 describes an exemplary hem winder. The hem winder is driven by an electric motor, which cooperates via a gear and a telescopic coupling with a two-part winding mandrel.
  • Hem winder are arranged for a good fillability of the so-called winding chamber advantageously below the trimming shear. This bothers in the current designs a comparatively large amount of space, caused by the complex drive train of the machine, which is composed of many moving components, such as one or more clutches, a transmission, a cardan shaft, a brake and a classic three-phase motor. A reduction of the installation space of hem winder, in particular in the longitudinal direction, ie the axial direction of the winding mandrel is therefore desirable.
  • the winding mandrel In coiling machines for unwinding and winding of metal bands, the winding mandrel is driven with the interposition of a complex reduction gear, usually provided with an oil circulation lubrication.
  • the conventional electric motors are mounted either on the gearbox or behind the gearbox.
  • the winding mandrel is rotatably supported by rolling bearings in the housing or on the frame of the winder.
  • the transmission of the torque from the drive to the winding mandrel is now carried out via one or more clutches, a drive spindle, which may be designed as a propeller shaft, a reduction gear with gears, bearings, brake means and other mechanical components.
  • a drive spindle which may be designed as a propeller shaft, a reduction gear with gears, bearings, brake means and other mechanical components.
  • the problem may arise that both the clutch and the transition from the transmission to the clutch and from the clutch to the rotor of the drive against torsional loads are not torsionally stiff to the desired extent. Due to the torsional compliance, the speed and the angle of rotation of the mandrel can oscillate against the drive, which can lead to problems in the control accuracy. This results in high costs and power losses in the drive train. Many moving parts must be protected by appropriate protection devices, they also lead to high maintenance and reduce reliability.
  • An object of the invention is to provide a winder in metal working with at least one winding mandrel for winding a band-shaped material, preferably metal material, and a drive, which overcomes at least one of the above-mentioned technical disadvantages.
  • the winder should have a high reliability in a compact design.
  • the winder is preferably used for unwinding and winding of metal strips in metalworking, in particular of bands and hems, which arise in the processing of metal strips of steel or non-ferrous metals, the so-called non-ferrous metals.
  • the winder may also be designed for unwinding and winding paper, such as paper liners.
  • the winder according to the invention has at least one winding mandrel.
  • the term "winding mandrel” hereby includes any cylindrical - not only circular cylindrical - rotatably mounted body, which is designed for unwinding or winding such strips or bands.
  • the mandrel may be made in several parts, or it may be provided a plurality of mandrels, which cooperate according to preferred embodiments described later.
  • the winder further comprises a housing.
  • the housing does not have to be closed, but rather also a frame, a base frame and the like fall under the name "housing".
  • the housing has one or more bearings for rotatably supporting the mandrel or a shaft which is connected to the winding mandrel on.
  • the winder has at least one drive which has an electric motor with a stator and a rotor.
  • the electric motor can be designed as a compact motor with its own bearings or bearings.
  • the electric motor may be a permanent magnet three-phase motor, it preferably has a motor housing or motor frame, in which the rotor is mounted, which is for example in the conventional manner by the force exerted by a magnetic field on current-carrying conductor of a coil in rotation.
  • the electric motor is a torque motor or synchronous motor.
  • Such motors can produce very high torques at relatively low speeds, making them particularly suitable as motors for direct drives. For example, can be dispensed with a reduction gear in many cases when using a torque motor.
  • the rotor is connected to the winding mandrel, whereby the rotation of the rotor is transmitted to the winding mandrel.
  • the stator is mounted directly on the housing of the winder and / or the rotor is directly connected to the winding mandrel or the above-mentioned shaft of the winding mandrel.
  • Any drive housing or motor housing, drive frame or motor frame is considered as part of the stator.
  • the relevant mechanical components are in direct contact with each other, preferably in a rigid manner. This can be achieved for example by screwing, riveting or welding, but also a one-piece design is included.
  • the drive functions as a direct drive to the rotary operation of the winding mandrel. If the stator of the drive is connected directly to the housing, the housing of the machine and the drive are "locked” to one another in this way. Due to the special integration on the one hand a very high torsional stiffness speed between the electric motor and the winding mandrel is achieved, on the other hand, complex mechanical Components, such as gears, clutches, cardan shafts, etc., in the drive train accounts. This simplifies the powertrain, it is compact, low-maintenance, lightweight and reliable. The winder achieves at low cost an improvement in the control properties of the winding mandrel, due to the high torsional stiffness.
  • the illustrated drive system allows a simple increase in drive power, for example, in a conversion or modernization of the system, when about new materials to be processed without the existing drive must be replaced.
  • the maintenance work on the winder is reduced, whereby the production time of the plant can be extended.
  • this is accompanied by a reduction of safety-related expenses.
  • the degrees of freedom of the machine are increased in terms of function and design.
  • the reduction in the drive train is favorable in terms of any standardization or standardization of such drive systems.
  • the housing can also be used as a heat sink or cooling surface of the electric motor.
  • media such as hydraulic oil and / or cooling water, is also possible from the drive side of the winding mandrel.
  • the electric motor is designed as an internal rotor, wherein the rotor is connected directly to the winding mandrel or directly to a shaft of the winding mandrel.
  • the electric motor of the drive can be designed as an external rotor, in which case a jacket section of the winding mandrel is connected to the rotor.
  • a "shell section” is understood to mean not only the outermost circumference of the cylindrical mandrel, but also further inward
  • Sections as far as they allow a connection with the external rotor, are included.
  • the shaft if the winding mandrel has such, can be mounted on the drive side in the housing or in the drive according to this embodiment.
  • embodiments are also possible in which it is possible to dispense with a shaft because of the close connection of the jacket section to the rotor.
  • the shell portion of the winding mandrel and the rotor are preferably connected directly to each other to further improve the Drehsteif ig speed, which according to a particularly preferred embodiment, an integral or partially integral formation is included.
  • the housing preferably supports the mandrel only on one side, while on the
  • the winding mandrel is mounted on the shaft or the rotor in the drive.
  • Winding mandrel and the rotor share a storage.
  • the shaft can be mounted on the housing via two bearings, whereby a bearing for the rotor in the drive can optionally be omitted.
  • two winding mandrels are provided along an axis, wherein at least one of the two in the axial direction displaceable and frontally engageable with the other winding mandrel or can be pressed against it.
  • mutually facing end faces of the two winding mandrels are preferably each designed to be conical and complementary to one another.
  • the two mandrels can be considered in this case as mandrel halves of one and the same winding mandrel. According to this preferred
  • Embodiment the supplied metal strip automatically by
  • Winding mandrels can be driven apart, for example, by pressure medium cylinder and towards each other.
  • a winding mandrel connected to the drive, while the other winding mandrel is entrained by adhesion between the end faces or via a possible clamped metal strip and thus manages without its own drive.
  • the direct drive shown here allows both mandrels can each be provided with its own drive without the advantages of a compact space can be abandoned.
  • This two-sided drive is a particularly preferred embodiment, since it makes the power transmission to the winding mandrel and the weight distribution uniform, resulting in advantages for the control technology. If two cooperating
  • Mandrels are provided and the two mandrels in
  • two drives are connected on opposite sides of the housing with the mandrel in order to equalize the power and weight distribution and / or to increase the drive power while maintaining a compact space.
  • the rotor of the drive is preferably connected to the winding mandrel without the interposition of a torque transmission, in particular a reduction gear.
  • a torque transmission By dispensing with a torque transmission, there is a direct and immediate torque transmission from the drive to the winding mandrel.
  • torque train includes all those types of transmissions that convert input torque or input speed into output torque or output speed of other magnitude, thus performing torque conversion.
  • the drive can be connected in certain embodiments via a spindle and / or a cardan shaft with the shaft. This is particularly suitable for drives with high performance or in adverse environmental conditions, such as in the hot rolling mill, into consideration.
  • the drive has at least one catching magnet, which may be arranged, for example, annularly around a rotor extension.
  • the capture magnet is designed to capture magnetic particles and keep them away from the electric motor. Thereby, despite the integral structure of the drive, magnetic particles can be prevented from getting into the electric motor, thereby improving the reliability of the drive.
  • the drive in addition to the electric motor to a brake and / or holding device, for rapid braking and optionally locking the machine.
  • the drive described above can be modular.
  • the electric motor as the base module can be extended by a brake module.
  • the drive can be extended by further modules, which are preferably cylindrical or disc-shaped.
  • Possible extension modules include, for example, a power increase module with drive means (such as rotor and stator) to increase the performance of the base module and / or a transmission module. So that the modules can be combined with each other, they have technically compatible components, in particular interconnectable or mutually flangeable housing.
  • Such a modular construction can increase the repetition frequency of identical parts (motor disks, stator disks, stator laminations, stator coils, brake disks, brake pads, etc.), thereby reducing the cost and increasing the reliability of the apparatus.
  • the drive preferably has a rotary encoder or speedometer for measuring the angle of rotation and / or the rotational speed.
  • the rotary encoder can be provided as a separate module or as part of a module. Likewise, a sensorless driving is possible.
  • the drive may also be equipped with a cooling device.
  • a cooling device This can be arranged for example as a separate module between the brake and the electric motor and / or as a cooling jacket in the motor housing of the drive.
  • the cooling can be formed by means of a fan and / or as water or fluid cooling.
  • the drive may have one or more integrated inverters.
  • the drive described here is particularly well applicable as a direct drive for winding mandrels in coiling lines for unwinding and winding metal bands or metal strips.
  • the invention is most preferably used in the industrial environment of metalworking, in the steel and non-ferrous industries, the invention may be practiced in other fields.
  • winding applications in paper machines or textile machines are mentioned by way of example.
  • FIG. 1 shows two schematic cross sections through a modular drive which is suitable as a direct drive for winders.
  • FIG. 2 shows schematically a band reel with a modular direct drive.
  • FIG. 3 shows schematically a seam winder with two direct drives.
  • FIG. 1 contains detail parts a) and b), which show by way of example two forms of how the modules set forth below can be combined to produce the drive. Other individual arrangements are of course possible. Together with a suitable diameter graduation, a modular construction kit is provided as the basis for economical production of direct drives.
  • the drive is mounted directly on a shaft 1.
  • the shaft 1 is preferably used in an integral manner as a rotor shaft of the drive and as a shaft of a working machine, such as one of the winder shown below.
  • the drive has bearing plates 2 with rolling bearings, which can store the shaft 1 and at the same time serve as a warehouse of the working machine.
  • the drive is divided into modules for power adjustment, plus a basic module provided, which is composed essentially of a rotor element 3, which is a rotor according to the present application, winding elements 10 and a housing member 9.
  • the housing element 9 is part of the stator of the drive.
  • a winding element 5 is provided for receiving end windings.
  • expansion modules 4 An individual extension or adaptation of the drive to the desired working condition is made possible by expansion modules 4. Further, a holding module 6 can be mounted. The modules and elements are preferably interconnected by Werankerverschraubungen 7. Steps and grooves in the respective modules and elements ensure a tolerance-based seat. Optionally, an encoder module 8 can be added. The base module and optionally further modules of the drive can be arranged both between the end shields 2 and also outside, according to a so-called flying bearing, explained in more detail below with reference to FIG.
  • the above design is an exemplary way of modular construction of drives, especially direct drives. It is particularly suitable for driving reels and winders, but not limited to this type of machine. Rather, the modular drive is also applicable to other work machines, such as support and work rolls, pulley sets, winches and shears.
  • FIG. 2 shows schematically a band reel with a modular direct drive.
  • FIG. 2 b shows a reel shaft 101, which is a winding mandrel according to the present application and is supported by the bearings 102.
  • the reel shaft 101 may be the shaft 1 of Figure 1, but it may also be integrally connected thereto.
  • the bearings 102 may be the bearing plates 2 with the built-in roller bearings of Figure 1, whereby a close connection between the drive and the working machine is realized.
  • the bearings 102 are on a base frame 103, which acts as a housing of the band reel, even if this is not the tape reel encloses.
  • a base module 104 From the base frame 103, a base module 104, an expansion module 105, such as a power upgrade module, and a brake module 106 are held, which together build the drive for the reel.
  • a media and / or energy duct 107 may be provided on the side opposite to the reel shaft 101.
  • a cooling fan may be provided on the outside of the modules of the drive, wherein, for example, a separate cooling fan 109 may be assigned to each module, as shown in the figure section 2a, or alternatively a cooling fan 108 may span a plurality of modules, as shown in the figures cutouts 2b and 2c is shown.
  • a cooling module (not shown) may be flanged to the drive as a cylindrical element, in the same way as the expansion module 105 or brake module 106.
  • FIG. 3 schematically shows a winder with two drives 200a and 200b, which can each be designed in accordance with the exemplary embodiments of FIGS. 1 or 2 set out above.
  • the two drives 200a, 200b each have a rotor 201a, 201b and a stator 202a, 202b.
  • the winder has two winding mandrels 300a and 300b which may also be considered as two halves of one and the same winding mandrel.
  • the winding mandrels 300a and 300b may each have a shaft (not shown), which is also referred to as a shaft journal, which in turn directly with the rotor 201 a, 201 b of corresponding drive 200a, 200b is connected, for example, is clamped therein.
  • the winding mandrel 300a, 300b is connected in this way directly to the rotor 201 a, 201 b of the drive 200a, 200b.
  • the rotor of the drive with the reference numeral 201 a, 201 b instead of the reference numerals 1 and 3 of Figure 1, to make it clear that the drive shown in Figure 1 an exemplary, albeit good suitable direct drive.
  • Reference numeral 302 denotes the housing of the winder.
  • the housing 302 has a winding chamber 303 in which the strip material is wound up.
  • the two winding mandrels 300a and 300b project at least partially into the winding chamber 303, wherein the winding mandrels 300a and 300b are arranged along an axis and are rotatably supported by corresponding bearings (not shown) which may be provided in the housing.
  • winding mandrels 300a, 300b are slidably provided in the axial direction, so that their end faces 301a, 301b can be brought into engagement or can be pressed against each other and released again.
  • mutually facing end faces 301 a, 301 b of the two winding mandrels 300 a, 300 b are preferably each formed conically and complementary to each other.
  • the supplied metal strip can be detected automatically by driving the two winding mandrels 300a, 300b against each other.
  • the two winding mandrels 300a, 300b can be moved apart and through each other by means of pressure cylinders, electromotives or in some other way.
  • each of the two winding mandrels 300a, 300b is driven by its own direct drive 200a, 200b.
  • Such a double-sided drive equalizes the distribution of torque on the
  • a drive-side bearing for the rotor 201a, 201b or the associated winding mandrel 300a, 300b may be dispensed with.
  • the stator 202a, 202b of the driver 200a, 200b is directly, i. mechanically rigid in this case, connected to the housing 302.
  • the winder has at least one drive 200a, 200b for the rotary operation of the winding mandrel 300a, 300b, on the one hand ensuring a high torsional stiffness between the drive 200a, 200b and the winding mandrel 300a, 300b, on the other side a or multiple conventional powertrain components such as transmissions, clutches, cardan shafts, etc. may be omitted.
  • drives 200a, 200b in the figure 3 are each runners, it should be noted that one or more drives can also be designed as an external rotor.
  • the stationary parts of the electric motor ie the stator
  • the rotor runs around the outside of the stator.
  • the rotor can pass directly into the mandrel, integrally formed with this or be rigidly connected thereto.
  • the jacket portion of the winding mandrel is in contact with the rotor.
  • the wave of Winding mandrel is optionally rotatably mounted in a built-in drive bearing.
  • the winding mandrel may optionally be dispensed with a shaft and its bearings.
  • the direct drive or drives 200a, 200b according to FIG. 3 can furthermore be equipped with a cooling device (not shown).
  • a cooling device (not shown).
  • This can be arranged for example as a separate, cylindrical module between a high-performance brake and the electric motor and / or as a cooling jacket in the housing of the drive.
  • the cooling can be formed by a fan and / or as water or fluid cooling.
  • the modular structure shown in FIG 1 can be extended accordingly.
  • a passage for media, such as hydraulic oil and / or cooling water is possible from the drive side by corresponding lines through the rotor 201 a, 201 b and optionally through the associated winding mandrel 300 a, 300 b are performed.
  • the tight, integral connection between the drive and the mandrel allows a space-saving plant construction. This is accompanied by simplifications in plant construction, for example by a foundation saving, better accessibility of the plant, a reduction in the reserve parts, a reduction in maintenance costs, a reduction of the hall.
  • the motors are not or less endangered by collars or other falling parts.
  • a major advantage of the concept presented here becomes clear in the thermal design of the motors. Due to the intimate connection of the drives with the working machine, the mass and the surface of the mechanical device for heat dissipation can be shared. The power of the electric motors can be increased without structural measures. The power loss of the powertrain is significantly reduced. On a forced ventilation or water cooling can be dispensed with in many cases.
  • the Motors can be designed as internal rotor or external rotor.
  • the integrated concept described also offers safety improvements, as it eliminates the need for rotating external drive parts such as cardan shafts, clutches, brake discs, etc. It eliminates components such as bearings, shafts, couplings, motor bases, gear bases, etc. A reduction of the moving parts also has a higher control accuracy result.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Winding Of Webs (AREA)

Abstract

L'invention concerne un enrouleur d'un matériau en forme de bande, de préférence de bande métallique, dans le domaine du travail des métaux, l'enrouleur présentant au moins un mandrin d'enroulement (101, 300a, 300b) qui est conçu pour l'enroulement du matériau en forme de bande, et un entraînement (200a, 200b) qui présente un moteur électrique, de préférence un moteur couple ou un moteur synchrone, comportant un stator et un rotor (3, 201a, 201b). L'enrouleur présente également un carter (103, 302), le rotor (3, 201a, 201b) est raccordé au mandrin d'enroulement (101, 300a, 300b), de sorte que la rotation du rotor (3, 201a, 201b) est transmise au mandrin d'enroulement (101, 300a, 300b), et le stator est monté directement sur le carter (103, 302) et/ou le rotor (3, 201a, 201b) est relié directement au mandrin d'enroulement (101, 300a, 300b) ou à un arbre du mandrin d'enroulement (101, 300a, 300b).
PCT/EP2018/072094 2017-08-18 2018-08-15 Entraînement direct d'un enrouleur de filet dans le domaine du travail des métaux WO2019034680A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880063489.3A CN111183105B (zh) 2017-08-18 2018-08-15 在金属加工中用于折边卷绕机的直接驱动机构
EP18755467.0A EP3668808B1 (fr) 2017-08-18 2018-08-15 Entraînement direct d'un enrouleur de filet dans le domaine du travail des métaux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017214414.9 2017-08-18
DE102017214414.9A DE102017214414A1 (de) 2017-08-18 2017-08-18 Direktantrieb für Saumwickler in der Metallbearbeitung

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Publication Number Publication Date
WO2019034680A1 true WO2019034680A1 (fr) 2019-02-21

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EP (1) EP3668808B1 (fr)
CN (1) CN111183105B (fr)
DE (1) DE102017214414A1 (fr)
WO (1) WO2019034680A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102021101531B4 (de) * 2021-01-25 2022-10-20 Achenbach Buschhütten GmbH & Co. KG Haspel zum Aufwickeln oder Abwickeln von bandförmigen Material und Verfahren

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EP3668808A1 (fr) 2020-06-24
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CN111183105B (zh) 2022-01-21
EP3668808B1 (fr) 2021-01-20

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