EP0028244B1 - Drahtbremse für eine wickelmaschine - Google Patents

Drahtbremse für eine wickelmaschine Download PDF

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Publication number
EP0028244B1
EP0028244B1 EP80901002A EP80901002A EP0028244B1 EP 0028244 B1 EP0028244 B1 EP 0028244B1 EP 80901002 A EP80901002 A EP 80901002A EP 80901002 A EP80901002 A EP 80901002A EP 0028244 B1 EP0028244 B1 EP 0028244B1
Authority
EP
European Patent Office
Prior art keywords
wire
brake
strands
pressure
winding
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.)
Expired
Application number
EP80901002A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0028244A1 (de
Inventor
Wolfgang Rosenkranz
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0028244A1 publication Critical patent/EP0028244A1/de
Application granted granted Critical
Publication of EP0028244B1 publication Critical patent/EP0028244B1/de
Expired legal-status Critical Current

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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
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to material
    • B65H59/24—Surfaces movable automatically to compensate for variation in tension
    • 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
    • B65H2555/24—Servomotors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/071—Winding coils of special form
    • H01F2041/0711—Winding saddle or deflection coils

Definitions

  • the invention relates to a wire brake for a winding machine for electrical coils, in which the wire to be braked is wrapped in a single layer by a plurality of pressure strands of a pressure rope, which is stretched between a stand and a slide which is displaceably mounted therein by a tensioning device, the pressure strands at one end of the pressure cable are fastened in an actuator rotatably mounted in the slide or in the stand.
  • the invention is therefore based on the object of improving a wire brake of the type mentioned in such a way that a good braking effect can be achieved with gentle treatment of the wire and a long service life.
  • the inventive solution to this problem is characterized in a wire brake of the type mentioned in that a brake cable is arranged between the wire to be braked and the pressure strands, which also consists of several, single-layer wound around the wire brake strands, which are fixed at one end and other end are clamped in the stand by means of a swirl device.
  • the invention makes it possible to optimize the properties of the brake cable solely with regard to its braking function and a gentle treatment of the wire, since it itself is subject to practically no tension.
  • an almost 100% wrap can be combined with an extremely gentle treatment of the insulation.
  • the winding direction of the strands of brake and pressure cables can be the same or opposite.
  • the braking power is determined by the length of the pressure rope and the pitch of the brake strands that can be adjusted manually or by motor with the actuator, this pitch being a measure of the pressing force and the braking surface depends on the length of the brake rope.
  • a high braking power can thus be distributed over a large area of the wire, so that the wire or its insulation is not impaired here either.
  • the invention also enables a certain wire tension to be kept constant easily with the aid of a regulator, in particular a three-point regulator. It is therefore no longer necessary - as in the prior art - to switch the braking power to the maximum value of the acceleration during one revolution of the winding machine; this also results in less strain on the wire.
  • the rapid adjustment required for regulating the braking power is only possible on the basis of the division of functions according to the invention between the brake and pressure cables.
  • the wire 8 is fed from a storage container V via the wire brake B and an actual value transmitter for the wire tension to the winding station W of an automatic winding machine.
  • a controller R changes the braking power of the wire brake B depending on the deviation of the actual value from the setpoint specified by a setpoint generator. The latter is determined experimentally for a specific type of winding by continuously increasing the braking power up to the value at which a satisfactory winding quality and the permissible wire elongation result at a given winding speed. The braking power required for this is maintained by the controller even when the brake cable is worn, so that no excessive braking values have to be set.
  • the wire brake according to FIGS. 2 and 3 consists of a stand 1 with two end walls 11, 12 and between these arranged guide rods 13 for the slide 4 slidably mounted thereon.
  • the latter is pneumatically via tie rods 43, a drawbridge 42 and a tension rod 51 actuated clamping device 5 coupled.
  • the carriage 4 has a crossbar 41, which is provided in its center with a bore 411 in which the actuator 7 for the brake cable 3 is rotatably mounted; it has a passage 72 in the middle for the brake cable 2 and the wire 8 and receptacles 73 for the ends of the pressure strands 31, which are laid down in it.
  • Four such receptacles 73 are preferably provided at a distance of 90 ° for four printing strands 31.
  • the actuator 7 is also equipped with a sprocket 71 which is coupled via a chain 9 to the sprocket 61 of an actuator 6 arranged on the carriage 4.
  • the end wall 12 has in the middle a passage 121 for the wire 8 and around this receptacles 122 and 123 for the other ends of the brake strands 21 and the pressure strands 31, respectively, which are equally spaced apart on concentric circles.
  • the other ends of the brake strands 21 are fixed in receptacles 1 112 of a swirl device 111 which is rotatably mounted in the other end wall 11 and which has a passage 1 111 in the middle for the wire 8 which is fed via a deflection roller 14.
  • the four strands 21 of the brake cable 2 are wound around the wire 8 in one layer without substantial tension; the required position of the swirl device 111 is determined by suitable locking means.
  • the four strands 31 of the pressure rope 3 are wound in one layer around the brake rope, the braking force increasing with decreasing pitch of the individual brake strands (increasing angle between the brake strand and wire) and with increasing tensile force of the tensioning device 5.
  • the latter is preferably kept constant at a value which is determined experimentally taking into account the material and length of the brake cable 2 as well as the shape of the winding and the winding speed.
  • the actuator 7 is rotated by the servomotor 6, whereby the pressure of the brake cable 2 on the wire is increased or decreased.
  • the actuator 7 can also be arranged in the end wall 12; the servomotor 6 is then to be attached to the stand 1.
  • This solution not only has mechanical advantages but is also favorable in terms of control technology, since the change in the braking force generated by the servomotor is strongest in the vicinity of the actuator, which is then closer to the winding station than in the embodiment described.

Landscapes

  • Tension Adjustment In Filamentary Materials (AREA)
  • Braking Arrangements (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Flexible Shafts (AREA)
  • Manufacture Of Motors, Generators (AREA)
EP80901002A 1979-05-11 1980-12-01 Drahtbremse für eine wickelmaschine Expired EP0028244B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2919145A DE2919145C2 (de) 1979-05-11 1979-05-11 Drahtbremse für eine Wickelmaschine für elektrische Spulen
DE2919145 1979-05-11

Publications (2)

Publication Number Publication Date
EP0028244A1 EP0028244A1 (de) 1981-05-13
EP0028244B1 true EP0028244B1 (de) 1983-01-26

Family

ID=6070549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80901002A Expired EP0028244B1 (de) 1979-05-11 1980-12-01 Drahtbremse für eine wickelmaschine

Country Status (9)

Country Link
US (1) US4362279A (es)
EP (1) EP0028244B1 (es)
JP (1) JPS56500490A (es)
AT (1) ATE2310T1 (es)
BR (1) BR8008676A (es)
DE (1) DE2919145C2 (es)
ES (1) ES491337A0 (es)
IT (1) IT1131468B (es)
WO (1) WO1980002548A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499054B1 (fr) * 1981-01-30 1987-04-10 Illinois Tool Works Mecanisme d'entrainement lineaire d'un cable
CN112945726B (zh) * 2021-01-29 2022-06-07 太原理工大学 分离式霍普金森杆拉/压-扭动态复合加载装置及操作方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426631A (en) * 1942-01-08 1947-09-02 Specialties Dev Corp Wire tensioning device
DE1106648B (de) * 1960-03-04 1961-05-10 Siemens Ag Einrichtung zum Abbremsen von fortlaufend bewegten Straengen, insbesondere von Fernmeldekabeladern
US3099419A (en) * 1961-12-19 1963-07-30 Phelps Dodge Copper Prod Magnet wire tensioning device
US3164335A (en) * 1963-04-18 1965-01-05 Possis Machine Corp Wire tensioning apparatus
DE1564959A1 (de) * 1966-12-29 1970-04-09 Telefunken Patent Vorrichtung zur Erzeugung eines konstanten Drahtzuges,insbesondere zum Wickeln von Ablenkspulen fuer Fernsehempfaenger
GB1590128A (en) * 1976-12-16 1981-05-28 Lucas Industries Ltd Tensioning device
DE2748745A1 (de) * 1977-10-29 1979-05-03 Seipp Kg Drahtbrems- und spannvorrichtungen insbesondere fuer drahtablaeufe

Also Published As

Publication number Publication date
ES8101308A1 (es) 1980-12-01
JPS56500490A (es) 1981-04-16
DE2919145C2 (de) 1982-11-25
US4362279A (en) 1982-12-07
IT1131468B (it) 1986-06-25
EP0028244A1 (de) 1981-05-13
IT8021889A0 (it) 1980-05-08
ATE2310T1 (de) 1983-02-15
WO1980002548A1 (en) 1980-11-27
ES491337A0 (es) 1980-12-01
DE2919145A1 (de) 1980-11-13
BR8008676A (pt) 1981-04-14

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