EP1034861A2 - Maschine zum Schneiden und Formen von Draht - Google Patents

Maschine zum Schneiden und Formen von Draht Download PDF

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Publication number
EP1034861A2
EP1034861A2 EP00104456A EP00104456A EP1034861A2 EP 1034861 A2 EP1034861 A2 EP 1034861A2 EP 00104456 A EP00104456 A EP 00104456A EP 00104456 A EP00104456 A EP 00104456A EP 1034861 A2 EP1034861 A2 EP 1034861A2
Authority
EP
European Patent Office
Prior art keywords
assembly
shaft
sliding direction
supporting structure
machine according
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.)
Withdrawn
Application number
EP00104456A
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English (en)
French (fr)
Other versions
EP1034861A3 (de
Inventor
Albino Castiglioni
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.)
Individual
Original Assignee
Individual
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
Priority claimed from EP99103978A external-priority patent/EP1036609A1/de
Application filed by Individual filed Critical Individual
Priority to EP00104456A priority Critical patent/EP1034861A3/de
Publication of EP1034861A2 publication Critical patent/EP1034861A2/de
Publication of EP1034861A3 publication Critical patent/EP1034861A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/58—Making machine elements rivets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F11/00—Cutting wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
    • B21K27/02—Feeding devices for rods, wire, or strips

Definitions

  • the present invention relates to a machine for cutting and press-forming material fed in the form of wire.
  • These machines are generally constituted by a supporting structure which supports, so as to allow sliding in a substantially horizontal direction, an assembly which is provided with a holder for one or more pressing punches which face a die in which adapted forming cavities are formed.
  • the holder of the press-forming punches is actuated with a reciprocating translatory motion so as to sequentially press-form segments of wire of preset length which are cut and inserted in the forming cavities of the die.
  • the die is usually actuated so as to rotate intermittently about a substantially horizontal axis so as to cyclically arrange several forming cavities in front of the punch or punches supported by the holder, which performs a reciprocating translatory motion.
  • the assembly that supports the press-forming punch holder is actuated intermittently at high speed and its motion is reversed at a high rate, so as to achieve high productivity for the machine.
  • EP 138.758 disclosed a machine provided with a second assembly which has the same characteristics and mass as the assembly that supports the press-forming punch holder and is arranged along the same line.
  • the first and the second assembly are slideable with respect to the supporting structure of the machine in a same direction and are actuated, in this sliding direction, in step but with mutually opposite directions of translatory motion. In this manner, the translatory motion of the second assembly perfectly counterbalances the vibrations generated by the translatory motion of the first assembly.
  • the material in the form of wire is fed to the die by means of a pair of counter-rotating feeder rollers arranged upstream of the assembly that actuates the holder of the punch or punches with an intermittent translatory motion, in the direction along which the holder advances toward the die.
  • the distance between the feeder rollers and the region at which the wire is cut and shaped is relatively large, and in the case of wire having a small diameter or low resistance to deformation the wire can undergo an undesirable deformation in this region, and may cause problems in the correct operation of the machine thus limiting its actuation speed and therefore its productivity.
  • the aim of the present invention is to solve the above problems, providing a machine for cutting and press-forming material fed in the form of wire which effectively avoids deformation of the fed wire even in case of wire having a small diameter or low resistance to deformation.
  • an object of the invention is to provide a machine which, by assuredly avoiding deformation of the fed wire, can achieve high actuation speeds without any problem and can therefore achieve higher productivity.
  • Another object of the invention is to provide a machine which reduces the vibrations within acceptable limits in despite of reduced overall longitudinal dimensions.
  • Another object of the invention is to provide a machine for cutting and press-forming material fed in the form of wire in which the kinematic system used to synchronize the movements of the various elements that compose the machine is relatively simple.
  • Another object of the invention is to provide a machine which is structurally simple, can be manufactured at competitive costs and ensures high reliability in operation.
  • a machine for cutting and press-forming material fed in the form of wire comprising a supporting structure which supports means for intermittently feeding material in the form of wire in an advancement direction; said supporting structure supporting, so as to allow sliding in a first sliding direction which is substantially parallel to said advancement direction, a first assembly which is provided with a holder for at least one punch which faces a forming die; means for cutting the material in the form of wire fed by said feeder means into segments of preset length being arranged between said forming die and said at least one punch; means being provided for actuating said first assembly with a reciprocating motion along said first sliding direction with respect to said supporting structure; characterized in that said feeder means comprise at least one pair of counter-rotating rollers which are arranged within the dimensions of said first assembly in a direction which is parallel to said first sliding direction.
  • the machine according to the invention comprises a supporting structure 2 which supports, so as to allow sliding in a first preferably horizontal sliding direction designated by the arrow 6, a first assembly 3 which is provided with a holder 4 for at least one conventional punch which is not shown for the sake of simplicity.
  • the supporting structure 2 also supports, so as to allow sliding in a second preferably horizontal sliding direction, which is designated by the arrow 16 and is parallel to the first sliding direction 6 of the first assembly 3, a second assembly 5 whose mass is adapted to counterbalance the mass of the first assembly 3.
  • the machine is provided with means for the synchronized actuation of the first assembly 3 and of the second assembly 5 in the corresponding sliding directions 6 and 16 with respect to the supporting structure 2.
  • the first assembly 3 and the second assembly 5 are preferably arranged one above the other and the sliding direction 16 of the second assembly 5 is parallel to, and vertically spaced from, the sliding direction 6 of the first assembly 3.
  • the second assembly 5 is arranged below the first assembly 3.
  • the first assembly 3 comprises a slider 7 which slidingly engages a dovetail guide 8 which is rigidly coupled to the supporting structure 2 and runs parallel to the sliding direction 6.
  • the means for actuating the first assembly 3 comprise a gearmotor 9 which is supported by the footing of the machine and is connected, for example by means of a belt drive 10, to a pulley 11 which is keyed to one end of a first shaft 12.
  • the shaft 12 is supported by the supporting structure 2 so that it can rotate about its own axis 12a, for example by interposing bearings 13a and 13b.
  • the axis 12a of the first shaft 12 is arranged horizontally and at right angles to the sliding direction 6.
  • the first shaft 12 has, proximate to its end that lies opposite the end to which the pulley 11 is keyed, an eccentric portion 14 which is connected to the first assembly 3 for example by means of a linkage 15.
  • the second assembly 5 is slideably fitted on guiding bars 17a and 17b which are rigidly coupled to the supporting structure 2 of the machine and run parallel to the sliding direction 16.
  • the sliding of the second assembly 5 along the guiding bars 17a and 17b is achieved by means of a second shaft 18 which is arranged below the first shaft 12 and is orientated so that its axis 18a is parallel to the axis 12a of the first shaft 12.
  • the second shaft 18 is supported, so that it can rotate about the corresponding axis 18a, by the supporting structure 2 for example by means of two bearings 19a and 19b.
  • the second shaft 18 also is provided, proximate to one of its axial ends, with an eccentric portion 20 which is connected, for example by means of a linkage 21, to the second assembly 5.
  • the first shaft 12 and the second shaft 18 are kinematically connected to each other so that the actuation of the first shaft 12 also produces the actuation of the second shaft 18 in step but with an opposite direction of rotation.
  • the kinematic connection of the first shaft 12 to the second shaft 18 is performed by a first gear 22 which is keyed on an intermediate portion of the first shaft 12 and meshes with a second gear 23 which is keyed on the second shaft 18.
  • the machine according to the invention comprises means for feeding the material in the form of wire 60 in an advancement direction which is substantially parallel to the first sliding direction 6.
  • Said means for feeding the wire 60 are constituted by at least one pair of rollers 24 and 25 which are orientated so that their axes are parallel to the axes of the shafts 12 and 18.
  • the supporting structure 2 supports a forming die 26 in which the forming cavities for the wire 60 fed by the rollers 24 and 25 are formed.
  • the die 26 is rigidly coupled to a star 27 which can rotate, with respect to the supporting structure of the machine, about an axis which is parallel to the sliding directions 6 and 16.
  • the star 27 and therefore the die 26 are actuated with an intermittent rotary motion about their own axis, for example by means of an hourglass cam 28, so as to periodically arrange a forming cavity or a set of forming cavities in front of the punch or set of punches supported by the holder 4.
  • the means for feeding material in the form of wire 60 constituted by at least one pair of counter-rotating rollers 24 and 25, are arranged within the dimensions of the first assembly 3 in a direction which is parallel to the first sliding direction 6.
  • rollers 24 and 25 are advantageously arranged between the holder 4 for the punch or punches and the first shaft 12, which is spaced from the end of the slider 7 that supports the holder 4 and is directed toward the die 26.
  • the rollers 24 and 25, which are arranged so that their axes are perpendicular to the first sliding direction 6 and are supported so that they can rotate about said axes by the supporting structure 2, are arranged in a compartment 61 which is formed in the body of the slider 7 and has dimensions which allow the free alternating translatory motion of the slider 7 in the direction 6 despite the presence of said rollers.
  • rollers 24 and 25 which can be provided substantially as disclosed in EP 78.775 in order to ensure intermittent advancement of the material in the form of wire 60 despite continuous rotation about their respective axes, are kinematically connected to the first shaft 12, as will become apparent hereinafter.
  • a third gear 44 which meshes with the second gear 23 and is rigidly coupled to a fourth gear 45, which meshes with a fifth gear 46.
  • the fifth gear 46 is rigidly coupled to a sixth gear 47 which is rigidly coupled to the roller 25 for feeding the wire 60.
  • the sixth gear 47 meshes with a seventh gear 48 which is rigidly coupled to the other roller 24 for feeding the wire 60.
  • the fifth gear 46 furthermore meshes with an eighth gear 49 which actuates the extractor 40.
  • the third gear 44 meshes with a ninth idler gear 50, which in turn meshes with a tenth gear 51 which actuates the hourglass cam 28.
  • the rotary actuation of the first shaft 12, provided by the gearmotor 9, causes the reciprocating translatory motion of the first assembly 3 in the sliding direction 6.
  • the second assembly 5 is actuated with a reciprocating motion in the sliding direction 16 with the opposite orientation with respect to the translatory motion of the first assembly 3.
  • the material in the form of wire 60 is pushed by the rollers 24 and 25 intermittently toward the die 26.
  • the material in the form of wire 60 is cut, in each instance, by cutting means which are interposed between the holder 4 and the die 26, which are known for example from EP-78.775 and not shown for the sake of simplicity, and is arranged inside the forming cavities, where it is pressed and formed by the advancement of the punch or punches supported by the holder 4 due to the advancement of the first assembly 3 toward the die 26.
  • the formed parts are then extracted from the forming cavities provided in the die 26 and the die 26 is cyclically rotated about its own axis in order to offer new forming cavities in front of the punch or punches supported by the holder 4.
  • rollers 24 and 25 for feeding the material in the form of wire 60 closer to the die 26 than in conventional machines, effectively avoids deformation of the wire 60 due to the thrust of the rollers 24 and 25 even in the case of a wire 60 having a small diameter or low resistance to deformation.
  • the materials used, as well as the dimensions, may be any according to requirements and to the state of the art.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Wire Processing (AREA)
EP00104456A 1999-03-10 2000-03-06 Maschine zum Schneiden und Formen von Draht Withdrawn EP1034861A3 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00104456A EP1034861A3 (de) 1999-03-10 2000-03-06 Maschine zum Schneiden und Formen von Draht

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99103978 1999-03-10
EP99103978A EP1036609A1 (de) 1999-03-10 1999-03-10 Maschine zum Abscheren und Pressformen von drahtförmigem Material
EP00104456A EP1034861A3 (de) 1999-03-10 2000-03-06 Maschine zum Schneiden und Formen von Draht

Publications (2)

Publication Number Publication Date
EP1034861A2 true EP1034861A2 (de) 2000-09-13
EP1034861A3 EP1034861A3 (de) 2001-09-19

Family

ID=26070628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00104456A Withdrawn EP1034861A3 (de) 1999-03-10 2000-03-06 Maschine zum Schneiden und Formen von Draht

Country Status (1)

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EP (1) EP1034861A3 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003101643A1 (en) * 2002-05-31 2003-12-11 Enkotec A/S Method and system for support and/or transport of a wire
SG123657A1 (en) * 2004-12-28 2006-07-26 Fwu Kuang Entpr Co Ltd Forming machine having improved transmission mechanisms
CN101335121B (zh) * 2007-06-25 2011-09-07 矢崎总业株式会社 电线输送设备和包括该电线输送设备的电线尺寸计测切割设备
CN102941295A (zh) * 2012-11-13 2013-02-27 南通昱品通信科技有限公司 铝合金预绞丝切断传动机构
CN104353754A (zh) * 2014-11-03 2015-02-18 三峡大学 一种全自动钢筋弯曲机
WO2016033028A1 (en) * 2014-08-25 2016-03-03 Remy Technologies, Llc Wire forming apparatus for electric machine winding
CN113305238A (zh) * 2021-05-19 2021-08-27 东莞市冠佳电子设备有限公司 一种自动上料定位切脚弯脚机构
CN114029445A (zh) * 2021-11-04 2022-02-11 安庆振宜机动车零部件再制造有限公司 一种发动机电控单元铆接件加工装置及其工作方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800348A (en) * 1972-11-10 1974-04-02 Raybestos Manhattan Inc Method and apparatus for cutting and inserting blanks from a rod
US4019432A (en) * 1976-01-21 1977-04-26 Albert Dunkin Rivet making machine
EP0138758A1 (de) * 1983-08-23 1985-04-24 Albino Castiglioni Vorrichtung zum kontinuierlichen Schneiden und Kaltpressen von drahtförmigen Materials
US5239921A (en) * 1990-05-16 1993-08-31 Carnaudmetalbox Plc Balance mechanism for a press machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800348A (en) * 1972-11-10 1974-04-02 Raybestos Manhattan Inc Method and apparatus for cutting and inserting blanks from a rod
US4019432A (en) * 1976-01-21 1977-04-26 Albert Dunkin Rivet making machine
EP0138758A1 (de) * 1983-08-23 1985-04-24 Albino Castiglioni Vorrichtung zum kontinuierlichen Schneiden und Kaltpressen von drahtförmigen Materials
US5239921A (en) * 1990-05-16 1993-08-31 Carnaudmetalbox Plc Balance mechanism for a press machine

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003101643A1 (en) * 2002-05-31 2003-12-11 Enkotec A/S Method and system for support and/or transport of a wire
SG123657A1 (en) * 2004-12-28 2006-07-26 Fwu Kuang Entpr Co Ltd Forming machine having improved transmission mechanisms
CN101335121B (zh) * 2007-06-25 2011-09-07 矢崎总业株式会社 电线输送设备和包括该电线输送设备的电线尺寸计测切割设备
US8479548B2 (en) 2007-06-25 2013-07-09 Yazaki Corporation Electric wire delivery apparatus and electric wire sizing-cutting apparatus including the same
CN102941295A (zh) * 2012-11-13 2013-02-27 南通昱品通信科技有限公司 铝合金预绞丝切断传动机构
CN102941295B (zh) * 2012-11-13 2014-10-15 南通昱品通信科技有限公司 铝合金预绞丝切断传动机构
US10038358B2 (en) 2014-08-25 2018-07-31 Borgwarner Inc. Wire forming apparatus for electric machine winding
WO2016033028A1 (en) * 2014-08-25 2016-03-03 Remy Technologies, Llc Wire forming apparatus for electric machine winding
US10958142B2 (en) 2014-08-25 2021-03-23 Borgwarner Inc. Wire forming apparatus for electric machine winding
US11456652B2 (en) 2014-08-25 2022-09-27 Borgwarner Inc. Wire forming apparatus for electric machine winding
CN104353754A (zh) * 2014-11-03 2015-02-18 三峡大学 一种全自动钢筋弯曲机
CN113305238A (zh) * 2021-05-19 2021-08-27 东莞市冠佳电子设备有限公司 一种自动上料定位切脚弯脚机构
CN113305238B (zh) * 2021-05-19 2022-05-13 东莞市冠佳电子设备有限公司 一种自动上料定位切脚弯脚机构
WO2022241870A1 (zh) * 2021-05-19 2022-11-24 东莞市冠佳电子设备有限公司 自动上料定位切脚弯脚机构
CN114029445A (zh) * 2021-11-04 2022-02-11 安庆振宜机动车零部件再制造有限公司 一种发动机电控单元铆接件加工装置及其工作方法
CN114029445B (zh) * 2021-11-04 2023-12-19 安庆振宜机动车零部件再制造有限公司 一种发动机电控单元铆接件加工装置及其工作方法

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Publication number Publication date
EP1034861A3 (de) 2001-09-19

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