EP3569355B1 - Dispositif d'enlèvement de couche et installation d'usinage de tubes dotée d'un dispositif d'enlèvement de couche - Google Patents

Dispositif d'enlèvement de couche et installation d'usinage de tubes dotée d'un dispositif d'enlèvement de couche Download PDF

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Publication number
EP3569355B1
EP3569355B1 EP19173696.6A EP19173696A EP3569355B1 EP 3569355 B1 EP3569355 B1 EP 3569355B1 EP 19173696 A EP19173696 A EP 19173696A EP 3569355 B1 EP3569355 B1 EP 3569355B1
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EP
European Patent Office
Prior art keywords
pipe
removal device
coating removal
rotary disc
housing
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP19173696.6A
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German (de)
English (en)
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EP3569355A1 (fr
Inventor
Manuel Burger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Familie Burger GbR
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Familie Burger GbR
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Publication of EP3569355A1 publication Critical patent/EP3569355A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/38—Single-purpose machines or devices for externally grinding travelling elongated stock, e.g. wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes

Definitions

  • the invention relates to a decoating device for removing a coating on a pipe.
  • the invention also relates to a tube processing plant with a decoating device.
  • a generic decoating device is from KR 2014 0122 473 A1 known.
  • Coated tubes are also often used in the manufacture of components from shaped tubes.
  • Galvanized tubes for example, are used to manufacture lines for frame heaters, evaporators or liquefaction devices, which are separated, bent, embossed and processed in other ways at various processing stations. Since the tubes often have to be soldered and the coating can interfere with the proper soldering process, the coating is usually removed from the soldering points. This can be done, for example, by machining with a defined or undefined cutting edge. However, when the tubes are machined, small grooves or notches are usually formed, which can affect the strength of the tubes. In addition, the pipes are usually not round, which means that there is a risk, e.g. when turning or other machining, that material from the pipe will be removed in addition to the coating. This can lead to undesired weakening of the pipe wall.
  • the DE 40 41 539 A1 discloses a decoating device for "peeling" pipes with rotating tools, such as face milling cutters or cup grinding wheels, the tool being mounted on a tool head rotating around the pipe and being rotatable about its own longitudinal axis. Here, however, only the tool head is driven.
  • One from the KR 2014 0122 473 A1 known decoating device for brushing tubular, bent aluminum parts contains two removal elements and one driven turntable with an adjustment mechanism for adjusting the distance between the removal elements.
  • the removal elements are rotatable both about their own longitudinal axes and about a central axis of the tubular aluminum part and are offset parallel to the axis of rotation of the rotary disk.
  • the adjusting mechanism is designed in such a way that the removal elements are mounted in a fixed manner in oblong holes in the shape of segments of a circle. An adjustment to a changing pipe diameter during operation of the decoating device is not possible.
  • a plurality of removal elements e.g. in the form of a brush, are arranged in a housing such that they can rotate both around their own longitudinal axis and around a central axis of the tube arranged inside the housing.
  • the removal elements rotating around their longitudinal axis are moved around the pipe so that the coating can be removed around the entire circumference of the pipe in a particularly effective and material-friendly manner.
  • the removal elements are arranged on a rotary disc which is rotatably mounted within the housing and is driven by a motor so as to be rotatable both about their own longitudinal axis and about a central axis of the pipe arranged within the housing.
  • the adjustment mechanism is provided in the housing and has a sleeve that is guided in an axially adjustable manner on a guide tube and has a cone that interacts with conical support rollers for the radial adjustment of the removal elements.
  • two opposite removal elements or a plurality of removal elements spaced at equal angles in the circumferential direction can be arranged in the housing.
  • the turntable can be driven by the motor via a belt or other transmission.
  • the gear can be designed, for example, as a planetary gear with a stationary gear arranged on the housing and a revolving gear meshing with it for driving a drive wheel revolving with the turntable.
  • the drive wheel can expediently be connected via a belt to the plurality of removal elements for rotation thereof about its longitudinal axis.
  • the turntable can preferably carry a plurality of radially adjustable slides, in each of which a removal element is rotatably mounted via a drive shaft.
  • the drive of the removal elements is advantageously designed so that it can be tracked when they are adjusted. This can be done, for example, in the form of a belt drive provided with a belt tensioner. As a result, a corresponding belt circumference can be kept largely constant with varying distances between belt pulleys.
  • a holding device for holding the pipe during the decoating can expediently be arranged on the housing.
  • the invention also relates to a pipe processing system with a decoating device as described above, a straightening and feed unit arranged upstream of the decoating device, a separating and end processing unit arranged downstream of the decoating device, and a positioning device arranged downstream of the separating and end processing unit for moving and holding a severed pipe section. Bending units for bending the pipe section displaced by the positioning device are also arranged on the carrier. With such a tube processing plant, the tubes straightened, stripped, separated and machined at their ends in a first step can be bent in a second step, while at the same time straightening, stripping, separating and end machining is carried out on a subsequent tube. In this way, a particularly compact, fast and flexible production system can be created with which, for example, upper and lower parts of the frame heating cables can be produced alternately in a cycle and then mounted in pairs immediately afterwards.
  • the decoating device 1 shown schematically is designed for removing a coating on a pipe 2 .
  • the decoating device 1 contains a housing 3, in which two opposite removal elements 4 and 5—here designed as brushes—are arranged such that they can rotate both about their own longitudinal axis 6 or 7 and together about a central axis 8 of the tube 2 arranged inside the housing 3 .
  • the two brush-like removal elements 4 and 5, which rotate about their longitudinal axes 6 and 7 and rest on the tube 2, are rotated about the longitudinal axis 8 of the tube 2, as a result of which the coating can be removed on the entire circumference of the tube 2 without rotating the tube 2.
  • the removal elements 4 and 5 can be designed, for example, as wire or flap brushes made of an abrasive material suitable for removing the coating.
  • the two removal elements 4 and 5 are arranged on a turntable 11 which is rotatably mounted within the housing 3 and is rotatably driven by a motor 9 via a belt 10 .
  • the two removal elements 4 and 5 are offset parallel to the axis of rotation of the rotary disc 11 rotating around the pipe 2 Turntable 11 arranged.
  • the belt 10 is designed as a toothed belt.
  • Two opposing, radially adjustable slides 12 and 13 are attached to the rotary disk 11, which is designed as a toothed disk.
  • the two removal elements 4 and 5 are rotatably mounted via a respective drive shaft 14 and 15.
  • the two sliders 12 and 13 are guided in the turntable 11 via guides 16 and 17 in a radially displaceable manner. They are pressed radially inwards by springs 18 and can be adjusted radially outwards against the force of the springs 18 and thereby moved apart by means of an adjustment mechanism, which will be explained in more detail below.
  • the rotary disk 11 is connected via axial connecting bolts 19 to a support ring 21 rotatably mounted by a cross roller bearing on a rear end wall 20 of the housing 3 .
  • a gearwheel 22 coaxial with the support ring 21 is also fixed via screws 23 on the rear end wall 20 of the housing 3 .
  • the stationary gear 22, which is provided with spur gearing, serves as the sun gear of a planetary gear for rotating the two removal elements 4 and 5 about their longitudinal axes 6 and 7.
  • a belt pulley 24 and 25 is fastened to the rear ends of the drive shafts 14 facing away from the removal elements 4 and 5 .
  • the two belt pulleys 24 and 25 designed as toothed belt pulleys are shown in FIG figure 3 connected to a drive wheel 27 via a belt 26 designed here as a toothed belt.
  • FIG. 4 From the sectional view of figure 4 shows that the drive wheel 27 is seated on a drive shaft 28 which is mounted via bearings 29 and 30 in the turntable 11 and a sleeve-shaped bearing part 31 which is firmly connected to the turntable 11 .
  • the bearing part 31 is offset from the axis of rotation of the turntable 11 .
  • a gear 32 meshing with the teeth of the stationary gear 22 is fastened to the free end of the drive shaft 28 facing the rear end wall 20 of the housing 3 .
  • the serving as a planetary gear 32 rolls during the rotation of the turntable 11 on the functioning as a sun stationary gear 22, so that by the rotation of the turntable 11 also the drive wheel 27 and, via the belt 26 and the two belt pulleys 24 and 25, the two removal elements 4 and 5 are also rotated about their longitudinal axes 6 and 7.
  • the belt is kept under tension by a belt tensioner 61 .
  • the belt circumference can be kept essentially constant even when the distance between the pulleys 24, 25 is adjusted by adjusting the slides 12, 13.
  • a central guide tube 34 provided with a passage opening 33 for the tube 2 is arranged inside the housing 3 between the gear wheel 22 and the rotary disc 11 .
  • the turntable 11 is rotatably mounted via a bearing 35 on the free end of the guide tube 34 which is supported on the rear end wall 20 of the housing 3 and faces the turntable 11 .
  • On the guide tube 34 provided with a cone 36 sleeve 37 is guided axially adjustable.
  • the sleeve 37 with the cone 36 which is axially adjustable on the guide tube 34, represents a part of the in figure 5 shown adjustment mechanism for the radial adjustment of the two removal elements 4 and 5.
  • the cone 36 of the sleeve 37 rests on two conical pressure pieces 38 and 39 which are arranged on the two slides 12 and 13. This is also in figure 3 shown.
  • the two removal elements 4 and 5 can move inwards again in the direction of the tube 2 due to the springs 18 .
  • the distance between the removal elements 4 and 5 can be adjusted and the contact pressure of the removal elements 4 and 5 on the pipe 2 can be adjusted.
  • the sleeve 37 provided with the cone 36 can be displaced via a claw 40 and a rod 41 .
  • the rod 41 can be displaced by a motor 42 via an eccentric drive with an eccentric bushing 43 and a shaft 45 provided with an eccentric pin 44 .
  • a front end wall 46 of the housing 3 is also an in figure 1 shown holding device 47 arranged to hold the tube 2 during the decoating.
  • the Holding device 47 contains two foldable holding arms 48 and 49 by which the tube 2 can be gripped.
  • a tube processing plant is shown in a plan view.
  • the pipe processing plant contains a horizontal support 50 on which the decoating device 1 described above and other processing units are arranged.
  • the stripping device is preceded by a straightening and feed unit 51 for advancing and straightening the pipe 2 provided on a pipe store 52 .
  • the tube is pulled from the tube store 52 by the straightening and feed unit 52 , straightened and transported to the decoating device 1 .
  • the pipe coating of the pipe 2 that has not yet been separated is then removed by means of the revolving removal elements 4 and 5.
  • a separating and end-processing unit 53 arranged downstream of the decoating device 1, the pipe 2 is then separated and the ends of the pipe 2 are widened and calibrated.
  • a positioning device with a plurality of gripping and holding elements 54, 55 and 56 which is arranged downstream of the separating and end-processing unit 53.
  • the positioning device with the gripping and holding elements 54, 55 and 56 the previously separated and not yet bent tube section can be offset transversely to the rear by, for example, 30 mm and clamped in the middle.
  • two bending units 57 and 58 arranged to be displaceable on the carrier 50 the severed section of the tube 2 can be bent in a vertical plane from both outsides, with the two bending units 57 and 58 moving ever further inward.
  • the tube can then be gripped, lifted and bent in the horizontal plane by two further bending units 59 and 60 . Simultaneously with the bending operations on the severed section of pipe 2, a new pipe section can be straightened, stripped, cut and calibrated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (11)

  1. Dispositif d'enlèvement de couche (1) pour le retrait d'un revêtement sur un tube (2) avec un boîtier (3), plusieurs éléments d'enlèvement (4, 5) qui sont agencés de manière rotative au niveau d'un disque de rotation (11) logé de manière rotative et entraîné par un moteur (9) non seulement autour de leurs propres axes longitudinaux (6, 7) mais aussi autour d'un axe médian (8) du tube (2) agencé dans le boîtier (3) et en déport parallèlement à l'axe de rotation du disque de rotation (11), et un mécanisme de réglage (34, 36, 38, 39) pour le réglage de la distance entre les éléments d'enlèvement (4, 5), dans lequel le moteur (9) pour l'entraînement du disque de rotation (11) par le biais d'une transmission (22, 32) entraîne aussi les éléments d'enlèvement (4, 5) pour la rotation autour de leurs axes longitudinaux (6, 7), caractérisé en ce que le disque de rotation (11) et le mécanisme de réglage (34, 36, 38, 39) sont agencés dans le boîtier (3) et le mécanisme de réglage (34, 36, 38, 39) comporte une douille (34) guidée de manière réglable axialement sur un tube de guidage (34) avec un cône (36) qui coopère avec des rouleaux d'appui (38, 39) coniques pour le réglage radial des éléments d'enlèvement (4, 5).
  2. Dispositif d'enlèvement de couche (1) selon la revendication 1, caractérisé en ce que le disque de rotation (11) est entraîné par le moteur (9) par le biais d'une courroie (10).
  3. Dispositif d'enlèvement de couche (1) selon la revendication 1 ou 2, caractérisé en ce que la transmission (22, 32) est réalisée comme engrenage planétaire avec une roue dentée (22) stationnaire agencée au niveau du boîtier (3) et une roue dentée (32) tournante s'engrenant avec celle-ci pour l'entraînement d'une roue d'entraînement (27) tournant avec le disque de rotation (11).
  4. Dispositif d'enlèvement de couche (1) selon la revendication 3, caractérisé en ce que la roue d'entraînement (27) est reliée par le biais d'une courroie (26) aux éléments d'enlèvement (4, 5) pour leur rotation autour de leurs axes longitudinaux (6, 7).
  5. Dispositif d'enlèvement de couche (1) selon la revendication 3 ou 4, caractérisé en ce que la roue d'entraînement (27) loge sur un arbre d'entraînement (28) qui est logé de manière rotative par le biais de paliers (29, 30) dans le disque de rotation (11) et une partie de palier (31) reliée fixement au disque de rotation (11).
  6. Dispositif d'enlèvement de couche (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le disque de rotation (11) porte plusieurs coulisseaux (12, 13) réglables radialement, dans lesquels respectivement un élément d'enlèvement (4, 5) est logé de manière rotative par le biais d'un arbre d'entraînement (14, 15).
  7. Dispositif d'enlèvement de couche (1) selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'un dispositif de retenue (47) pour le support du tube (2) pendant l'enlèvement de couche est agencé au niveau du boîtier (3).
  8. Dispositif d'enlèvement de couche (1) selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les éléments d'enlèvement (4) sont réalisés comme brosse métallique ou à lamelles avec un revêtement abrasif.
  9. Installation d'usinage de tube avec un support (50), au niveau duquel sont agencés un dispositif d'enlèvement de couche (1) selon l'une quelconque des revendications 1 à 8, un groupe de direction et d'avance (51) agencé en amont du dispositif d'enlèvement de couche (1), un groupe d'usinage de séparation et des extrémités (53) agencé en aval du dispositif d'enlèvement de couche (1) et un dispositif de positionnement agencé en aval du groupe d'usinage de séparation et des extrémités (53) avec des éléments de préhension et de retenue (54, 55, 56) pour le coulissement et le support d'une section de tube séparée.
  10. Installation d'usinage de tube selon la revendication 9, caractérisée en ce que des groupes de flexion (57, 58, 59, 60) pour la flexion de la section de tube séparée et coulissée par le dispositif de positionnement sont agencés au niveau du support (50).
  11. Installation d'usinage de tube selon la revendication 10, caractérisée en ce que la flexion de la section de tube séparée est effectuée par les groupes de flexion (57, 58, 59, 60) alors que le tube suivant encore droit est simultanément usiné.
EP19173696.6A 2018-05-15 2019-05-10 Dispositif d'enlèvement de couche et installation d'usinage de tubes dotée d'un dispositif d'enlèvement de couche Active EP3569355B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018111532.6A DE102018111532A1 (de) 2018-05-15 2018-05-15 Entschichtungsvorrichtung und Rohrbearbeitungsanlage mit einer Entschichtungsvorrichtung

Publications (2)

Publication Number Publication Date
EP3569355A1 EP3569355A1 (fr) 2019-11-20
EP3569355B1 true EP3569355B1 (fr) 2022-11-02

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EP19173696.6A Active EP3569355B1 (fr) 2018-05-15 2019-05-10 Dispositif d'enlèvement de couche et installation d'usinage de tubes dotée d'un dispositif d'enlèvement de couche

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EP (1) EP3569355B1 (fr)
DE (1) DE102018111532A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114472381B (zh) * 2022-01-24 2023-08-15 南京南华航空产业有限公司 可适应弯曲形状的保温材料拆解机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1998755A (en) * 1934-03-30 1935-04-23 Johnson Steel & Wire Company I Grinding machine
DE1918000A1 (de) * 1968-04-12 1970-02-19 Virgilio Olivotto Vorrichtung zum Schleifen von Rundmaterial,insbesondere aufrollbarem Rundmaterial
DE2043101C3 (de) * 1970-08-31 1974-03-21 Sinram U. Wendt, 3250 Afferde Vorrichtung zur Bearbeitung der Oberfläche langgestreckter Werkstücke
US3886894A (en) * 1972-12-14 1975-06-03 M & B Metal Products Company Apparatus for cleaning and coating wire
DE2540933A1 (de) * 1975-09-13 1977-04-28 Transformatoren Union Ag Verfahren und vorrichtung zum entfernen von auf profildraehten aufgebrachten isoliermaterialien, schutzschichten und oxydationsschichten
DE4041539A1 (de) * 1990-12-22 1992-07-02 Saarstahl Ag Vorrichtung zur spanenden bearbeitung von metallischen und nichtmetallischen stangen und rohren
KR101485152B1 (ko) * 2013-04-10 2015-01-23 주식회사 한맥전자 헤어라인 형성장치

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EP3569355A1 (fr) 2019-11-20
DE102018111532A1 (de) 2019-11-21

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