WO2022180925A1 - Procédé de moulage de matériau de fil, dispositif de moulage de matériau de fil - Google Patents

Procédé de moulage de matériau de fil, dispositif de moulage de matériau de fil Download PDF

Info

Publication number
WO2022180925A1
WO2022180925A1 PCT/JP2021/038485 JP2021038485W WO2022180925A1 WO 2022180925 A1 WO2022180925 A1 WO 2022180925A1 JP 2021038485 W JP2021038485 W JP 2021038485W WO 2022180925 A1 WO2022180925 A1 WO 2022180925A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
roller group
rollers
forming
forming apparatus
Prior art date
Application number
PCT/JP2021/038485
Other languages
English (en)
Japanese (ja)
Inventor
佳子 高橋
明 鳥羽
奨太 川口
Original Assignee
日立Astemo株式会社
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 日立Astemo株式会社 filed Critical 日立Astemo株式会社
Priority to EP21928020.3A priority Critical patent/EP4299206A1/fr
Priority to CN202180092750.4A priority patent/CN116783015A/zh
Priority to JP2023502059A priority patent/JPWO2022180925A1/ja
Publication of WO2022180925A1 publication Critical patent/WO2022180925A1/fr

Links

Images

Classifications

    • 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
    • B21F1/02—Straightening
    • B21F1/026—Straightening and cutting

Definitions

  • the present invention relates to a wire forming method and a wire forming apparatus.
  • Patent Document 1 discloses a straightening machine for straightening a bar or wire that easily improves the straightness of the bar or wire, wherein the straightening machine performs straightening by passing a metal bar or wire through a plurality of rolls.
  • the straightening machine includes at least one unit group including two or more units adjacent to each other and forming an angle of ⁇ 15° between the two or more units in the direction in which the bar or wire is straightened.
  • the movable rolls are arranged in a staggered manner so as to sandwich the running rod or wire, and the movable roll closest to the entrance of the unit and the movable roll closest to the exit are pushed in.
  • a bar or wire straightening machine characterized in that the pushing amount of adjacent units can be set and that the pushing amounts of adjacent units satisfy a predetermined relationship.
  • a wire forming method is a method for forming a wire that moves from an upstream side to a downstream side, wherein the wire is pressed by a first roller group that is a plurality of rollers driven by a motor. and a second step of sending out the wire while pressing it with a second roller group, which is a plurality of rollers rotatably supported, wherein the first step is faster than the second step.
  • the pressing amount which is provided on the upstream side and is the difference between the outer dimensions of the wire rod and the gap between the rollers through which the wire rod passes, is greater in the first step than in the second step.
  • a wire rod forming apparatus comprises a feeding section for feeding a wire, a first roller group comprising a plurality of rollers driven by a motor and pressing the wire fed by the feeding section, and the first roller.
  • a second roller group that is rotatably supported and is a plurality of rollers that further press the wire pressed by the group, and is the difference between the outer dimensions of the wire and the gap between the rollers through which the wire passes.
  • the pressing amount of the first roller group is larger than that of the second roller group.
  • the warp of the wire can be stably reduced.
  • Schematic diagram of wire processing system including forming equipment
  • Schematic diagram of molding equipment Schematic diagram of pushing amount in molding equipment
  • a diagram showing an example of the configuration of the drive roller Conceptual diagram of test results for determining the arrangement angle ⁇ x
  • FIG. 1 An embodiment of a wire forming apparatus and a wire forming method according to the present invention will be described below with reference to FIGS. 1 to 5.
  • FIG. 1 An embodiment of a wire forming apparatus and a wire forming method according to the present invention will be described below with reference to FIGS. 1 to 5.
  • FIG. 1 An embodiment of a wire forming apparatus and a wire forming method according to the present invention will be described below with reference to FIGS. 1 to 5.
  • FIG. 1 is a schematic diagram of a wire processing system S including a forming apparatus 1.
  • XYZ axes orthogonal to each other are shown for explanation.
  • the X-axis is parallel to the left-right direction in FIG. 1, and the right side of the figure is the positive direction.
  • the Z-axis is parallel to the up-down direction in FIG. 1, and the upward direction in the drawing is the positive direction.
  • the positive direction of the Y-axis is the depth direction in FIG.
  • the wire processing system S includes a delivery device 700, a forming device 1, a peeling device 800, and a cutting device 900.
  • the wire moves from left to right in the drawing and is processed in order.
  • the left side of the drawing is also called “upstream”
  • the right side of the drawing is also called “downstream”.
  • a bobbin around which a wire rod is wound is installed in the delivery device 700 with its rotation axis parallel to the Y-axis.
  • the delivery device 700 delivers the wire wound around the bobbin to the molding device 1 .
  • the wire is warped in the Z direction in FIG. 1 by being wound around the bobbin.
  • the forming apparatus 1 corrects the warp in the Z direction of the wire rod sent from the sending device 700 and sends the wire to the peeling device 800 .
  • "Warp” is also called “curvature” or "habit”.
  • the peeling device 800 peels off the insulation coating of the wire by cutting, laser irradiation, or the like.
  • a cutting device 900 cuts a wire to a predetermined length. Below, the configuration and operation of the molding apparatus 1 will be described in detail. In FIG. 1, the wires are drawn in a straight line for convenience of drawing, and is not an essential component.
  • FIG. 2 is a schematic diagram of the molding apparatus 1.
  • the forming apparatus 1 includes a first roller group 11, a second roller group 12, and a third roller group 13.
  • the wire is formed first by the first roller group 11 , then by the second roller group 12 , and finally by the third roller group 13 .
  • the forming of the wire by the first roller group 11 is called “first process”
  • the forming of the wire by the second roller group 12 is called “second process”
  • the forming of the wire by the third roller group 13 is called “ 3rd step”. In both the first step and the second step, the wire is plastically deformed.
  • the difference between the outer dimensions of a predetermined wire rod and the gap between the rollers through which the wire rod passes is called “pressing amount”. For example, if the outer dimension of the predetermined wire rod is "1.000 mm" and the roller interval is “0.998 mm”, the pushing amount is "0.002 mm”.
  • each of the first roller group 11, the second roller group 12, and the third roller group 13 the rollers are arranged vertically in two rows, and the wire passes through approximately the center thereof.
  • Each of the first roller group 11, the second roller group 12, and the third roller group 13 includes at least three rollers. The number of rollers included in each of the first roller group 11, the second roller group 12, and the third roller group 13 may be different. In FIG. 2, all the lower row rollers of the first roller group 11, the second roller group 12, and the third roller group 13 are arranged in a straight line, but this is only an example of the configuration.
  • Each of the first roller group 11 is a driving roller whose outer periphery is molded with urethane rubber and which is driven by a motor as described later.
  • the direction in which the rollers are driven is along the movement of the wire. Specifically, the rollers on the upper side in the drawing are driven counterclockwise, and the rollers on the lower side in the drawing are driven clockwise.
  • the gap between the rollers through which the wire passes is set so that the amount of pushing is gradually decreased from the upstream side to the downstream side.
  • the clearance gap between the rollers through which a wire passes is also called “roller clearance.”
  • Each of the second roller group 12 and the third roller group 13 is made of metal and is not driven by external power.
  • the interval between the rollers in the second roller group 12 is set so that the amount of pushing gradually decreases from the upstream side to the downstream side, and the final amount of pushing in the second roller group 12 is set to zero. Further, the most upstream pushing amount of the second roller group 12 is smaller than the most downstream pushing amount of the first roller group 11 . All the push amounts in the third roller group 13 are set to zero.
  • the second roller group 12 is configured such that a plurality of rollers in the upper row are integrally fixed and rotatable about the last roller in the upper row.
  • the position of the last roller in the upper row is determined in advance so that the final pushing amount in the second roller group 12 is zero, and the position of this roller is not readjusted unless the wire is changed.
  • the angle formed by a straight line connecting the centers of the upper row rollers in the second roller group 12 and a straight line connecting the centers of the lower row rollers in the second roller group 12 is called an "arrangement angle ⁇ x".
  • the arrangement angle ⁇ x is zero degrees, the upper row and the lower row are parallel, and the pressing amount of the second roller group 12 is all zero, although this can occur only in the process of adjustment, which will be described later.
  • the arrangement angle ⁇ x of the second roller group 12 is set such that the pressing amount increases toward the upstream side when the adjustment is completed and the wire is formed.
  • FIG. 3 is a schematic diagram of the pushing amount in the molding device 1.
  • FIG. The vertical axis in FIG. 3 indicates the pushing amount, and the higher the figure, the larger the positive value, and the minimum value is zero.
  • the horizontal axis in FIG. 3 indicates the X-coordinate value of the position where the pressing of the molding apparatus 1 is performed, the left side in the drawing indicates the upstream side, and the right side in the drawing indicates the downstream side.
  • the pushing amount gradually decreases from the upstream side to the downstream side and reaches zero. All of the push amounts in the third roller group 13 are zero.
  • the ratio of the minimum pushing amount in the first roller group 11 and the maximum pushing amount in the second roller group 12 is several times, but it may be 10 times or more or 50 times or more.
  • FIG. 4 is a diagram showing an example of the configuration of each roller constituting the first roller group 11, that is, the drive roller.
  • the drive roller 22 is driven by obtaining power energy from a motor 31 shown in the lower right of FIG. Rotational energy generated by motor 31 is transmitted to shaft 27 via timing pulley 30 , timing belt 29 and timing pulley 28 .
  • the drive roller 22 is positionally adjustable as described above, and in FIG. A universal joint 26 is interposed between the shaft 27 and the drive roller 22 so as to be able to adjust the position.
  • roller position A procedure for determining the amount of pushing in the first roller group 11 and the second roller group 12, in other words, a procedure for determining the interval between the rollers, will be described. Since all the third roller group 13 have a pushing amount of zero as described above, the interval between the rollers is the same as the dimension of the wire, which is the regulation, and thus the description thereof is omitted here. As described below, the first roller group 11 is adjusted first, and then the second roller group 12 is adjusted. The adjustments described below may be performed, for example, by an operator or may be calculated by a computer.
  • the strain corresponding to the "tensile strength", which is the maximum stress in the wire rod, is specified from the composition of the wire rod.
  • a physical property table or database can be used.
  • the specified strain is multiplied by a predetermined ratio, such as "0.6”, and is named "target strain”.
  • the pressing amount of each roller in the first roller group 11 is determined so that the pressing amount decreases sequentially and the "target strain” is reached when the first step is completed.
  • the results of calculations using simulation software may be used, or the results of one or more experiments using the molding apparatus 1 may be used.
  • the position of the first roller group 11 can be determined according to a predetermined policy.
  • the predetermined policy is, for example, fixing the position of the lower roller in the first roller group 11 and adjusting the position of the upper roller to set the roller interval to a determined value.
  • the first roller group 11 is set at the determined position of the first roller group 11, and the process proceeds to the determination process of the pressing amount of the second roller group 12 next.
  • the pushing amount of the second roller group 12 is determined by the arrangement angle ⁇ x.
  • the optimum arrangement angle ⁇ x is determined, for example, by the operator changing xx in a plurality of ways and actually measuring the processing results of the second step. Specific examples will be described below.
  • FIG. 5 is a conceptual diagram of test results for determining the arrangement angle ⁇ x.
  • the vertical axis in FIG. 5 indicates the amount of warp, and the horizontal axis indicates the arrangement angle ⁇ x.
  • eight arrangement angles S1 to S8 are shown in FIG. 5, these eight are merely examples, and may be more or less than eight.
  • a plus amount of warp means warping to the plus side of the Z axis
  • a minus amount of warpage means warping to the minus side of the Z axis.
  • FIG. 5 shows two independent test results, the triangular plot indicates the case where the wire rod output from the first step is greatly biased to the positive side, and the square plot indicates the wire rod output from the first step. This figure shows the case where the wire rod was heavily biased to the negative side.
  • the warp correction in the second step does not work so much and the wire is still large positive. value.
  • the warp amount decreases as the arrangement angle ⁇ x increases, and in the example shown in FIG. 5, the warp amount is approximately zero when the arrangement angle ⁇ x is S4.
  • the arrangement angle ⁇ x is further increased from S4, the amount of warpage turns to increase and continues to increase.
  • the operator determines S4 with the smallest absolute value of the amount of warpage as the arrangement angle ⁇ x.
  • the forming apparatus 1 forms a wire moving from the upstream side, which is the left side in FIG. 2, to the downstream side, which is the right side in the drawing, as follows.
  • Forming of the wire by the forming apparatus 1 includes the following first step and second step.
  • the first step the wire is sent out while being pressed by a first roller group 11 that is a plurality of rollers driven by a motor 31 .
  • the second step the wire is sent out while being pressed by a second roller group 12, which is a plurality of rotatably supported rollers.
  • the first step is provided upstream of the second step, that is, on the left side of the drawing.
  • the pushing amount which is the difference between the outer dimensions of the wire and the gap between the rollers through which the wire passes, is greater in the first step than in the second step. Therefore, in the first step, the wire is sent out using the first roller group 11 that is driven, thereby reducing the tension generated in the wire and suppressing the elongation while reducing the warp.
  • the pushing amount it is possible to stably reduce the warpage of the wire. That is, the forming method by the forming apparatus 1 can stably reduce the warp of the wire.
  • the pushing amount decreases sequentially from the upstream side to the downstream side. Therefore, the warp of the wire can be reduced more stably.
  • the pushing amount is gradually decreased from the upstream side to the downstream side to zero. Therefore, the warp of the wire can be reduced more stably.
  • the minimum push in the first step is at least ten times the maximum push in the second step. Therefore, in the first step, a strong strain is imparted to the wire, and mechanical properties can be made uniform by work hardening.
  • the forming of the wire by the forming apparatus 1 includes, in addition to the first step and the second step, a third step of sending out the wire by the third roller group 13, which is a plurality of rotatably supported rollers.
  • This third step is provided downstream of the second step, that is, on the right side of the drawing.
  • the pushing amount in the third step is zero. Therefore, by using the third roller group 13 having a zero pressing amount, the warpage of the wire rod itself is corrected, and variations can be suppressed.
  • Each roller constituting the first roller group 11 has a surface made of urethane rubber. Therefore, the followability of the wire with respect to each drive roller is improved, and the warpage of the wire can be further reduced.
  • Modification 1 The above-described embodiment may be modified as in the following ⁇ 1> to ⁇ 5>, and these ⁇ 1> to ⁇ 5> may be combined arbitrarily. That is, all the modifications ⁇ 1> to ⁇ 4> may be added to the configuration of the embodiment, or any one or more modifications ⁇ 1> to ⁇ 5> may be added.
  • the forming apparatus 1 may not include the third roller group 13 and may not include the third step in forming the wire rod.
  • the ratio of the minimum pushing amount in the first step and the maximum pushing amount in the second step may be several times.
  • the pushing amount does not have to decrease sequentially from the upstream side to the downstream side.
  • the pushing amount does not have to decrease sequentially from the upstream side to the downstream side.
  • the rollers constituting the first roller group 11 may not be molded with urethane rubber on the outer periphery and may have a metal surface.
  • the roller position can be easily adjusted, although there are disadvantages such as insufficient reduction in warpage and lack of stability as compared with the above-described embodiment. Moreover, even if these disadvantages exist, it is sufficient if the required accuracy is satisfied.
  • the method of determining the pushing amount in the second roller group 12 described in the above embodiment is merely an example.
  • the positions of the upper rollers in the second roller group 12 can be individually adjusted, and by measuring the amount of warpage while gradually changing the position of each roller, the position of the roller that minimizes the amount of warpage. may be determined.
  • the number of times of roller position adjustment and the number of times of measuring the amount of warpage are significantly increased compared to the embodiment, but the absolute value of the amount of warp can be made smaller than in the embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)

Abstract

Selon la présente invention, un procédé de moulage d'un matériau de fil, conduit sur un matériau de fil se déplaçant du côté amont vers le côté aval, comprend : une première étape pour distribuer le matériau de fil tout en pressant le matériau de fil au moyen d'un premier groupe de rouleaux, qui est une pluralité de rouleaux entraînés par un moteur ; et une deuxième étape pour distribuer le matériau de fil tout en pressant le matériau de fil au moyen d'un deuxième groupe de rouleaux, qui est une pluralité de rouleaux soutenus de façon rotative. La première étape est disposée sur le côté amont de la deuxième étape. La quantité de pressage, qui est la différence entre les dimensions externes du matériau de fil et l'espacement entre les rouleaux à travers lesquels le matériau de fil passe, est plus élevée dans la première étape que dans la deuxième étape.
PCT/JP2021/038485 2021-02-26 2021-10-18 Procédé de moulage de matériau de fil, dispositif de moulage de matériau de fil WO2022180925A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP21928020.3A EP4299206A1 (fr) 2021-02-26 2021-10-18 Procédé de moulage de matériau de fil, dispositif de moulage de matériau de fil
CN202180092750.4A CN116783015A (zh) 2021-02-26 2021-10-18 线材的成形方法、线材的成形装置
JP2023502059A JPWO2022180925A1 (fr) 2021-02-26 2021-10-18

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021030265 2021-02-26
JP2021-030265 2021-02-26

Publications (1)

Publication Number Publication Date
WO2022180925A1 true WO2022180925A1 (fr) 2022-09-01

Family

ID=83047938

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/038485 WO2022180925A1 (fr) 2021-02-26 2021-10-18 Procédé de moulage de matériau de fil, dispositif de moulage de matériau de fil

Country Status (4)

Country Link
EP (1) EP4299206A1 (fr)
JP (1) JPWO2022180925A1 (fr)
CN (1) CN116783015A (fr)
WO (1) WO2022180925A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494665A (fr) * 1972-05-08 1974-01-16
JPS60151643U (ja) * 1984-03-16 1985-10-08 株式会社明電舎 電線レベラ−
JPS6146036U (ja) * 1984-08-24 1986-03-27 電気興業株式会社 線癖取り装置
JPH05104181A (ja) * 1991-10-16 1993-04-27 Bridgestone Bekaert Steel Code Kk 金属線材の残留応力及び真直性の矯正方法
JPH06246380A (ja) * 1993-03-02 1994-09-06 Hitachi Ltd ワイヤロープ矯正方法及び装置
JP2001353542A (ja) * 2000-06-12 2001-12-25 Nittetsu Steel Pipe Co Ltd 亜鉛めっき鋼管の絞り加工方法および装置
JP2007044734A (ja) * 2005-08-10 2007-02-22 Hitachi Cable Ltd 線材矯正装置及び太陽電池の組み立て配線装置
JP2016187821A (ja) * 2015-03-30 2016-11-04 矢崎総業株式会社 線材矯正装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494665A (fr) * 1972-05-08 1974-01-16
JPS60151643U (ja) * 1984-03-16 1985-10-08 株式会社明電舎 電線レベラ−
JPS6146036U (ja) * 1984-08-24 1986-03-27 電気興業株式会社 線癖取り装置
JPH05104181A (ja) * 1991-10-16 1993-04-27 Bridgestone Bekaert Steel Code Kk 金属線材の残留応力及び真直性の矯正方法
JPH06246380A (ja) * 1993-03-02 1994-09-06 Hitachi Ltd ワイヤロープ矯正方法及び装置
JP2001353542A (ja) * 2000-06-12 2001-12-25 Nittetsu Steel Pipe Co Ltd 亜鉛めっき鋼管の絞り加工方法および装置
JP2007044734A (ja) * 2005-08-10 2007-02-22 Hitachi Cable Ltd 線材矯正装置及び太陽電池の組み立て配線装置
JP2016187821A (ja) * 2015-03-30 2016-11-04 矢崎総業株式会社 線材矯正装置

Also Published As

Publication number Publication date
CN116783015A (zh) 2023-09-19
EP4299206A1 (fr) 2024-01-03
JPWO2022180925A1 (fr) 2022-09-01

Similar Documents

Publication Publication Date Title
KR101651313B1 (ko) 금속 스트립을 연속적으로 신장-굽힘 교정하기 위한 방법 및 장치
KR101204497B1 (ko) 마그네슘 합금 열간 압연 장치
US20080072415A1 (en) Iron Core and Method of Manufacturing the Same and Apparatus for Manufacturing the Same
KR20210011355A (ko) 금속 스트립을 신장 평탄화하기 위한 방법 및 장치
JP2015174090A (ja) 金属線材の直線矯正方法
CN110958918A (zh) 低压轧制控制金属基材平坦度的系统和方法
KR20150137989A (ko) 인발유닛 및 그를 이용한 인발방법
TWI439330B (zh) The manufacturing method of profiled section
CN110446569B (zh) 多功能加工设备
WO2022180925A1 (fr) Procédé de moulage de matériau de fil, dispositif de moulage de matériau de fil
US11707774B2 (en) Bending method
WO2020110442A1 (fr) Dispositif de traitement et procédé de commande d'un dispositif de traitement
KR20200075253A (ko) 강판 코일 외경모서리 보호재 제조장치
JP4059737B2 (ja) ロール曲げ成形方法及びロール曲げ成形装置
US10236753B2 (en) Method of manufacturing assembled conductor and electric motor
JP6760484B2 (ja) 棒線材の矯正機及び棒線材の矯正方法
JP6245492B2 (ja) 長尺ワークの加工装置及び加工方法
EP1554064A1 (fr) Procede et appareil de laminage d'un tube
US8459081B2 (en) Continuously smoothly adjustable and self-aligning variable width roll forming apparatus
KR19990028972A (ko) 긴 코일로 전기 테이프를 감는 방법
JP2016129893A (ja) 形鋼用矯正装置および形鋼の製造方法
JP5551551B2 (ja) ゴム−コード複合体の製造方法
KR20120073450A (ko) 판재의 인장 교정 장치 및 방법
KR101406446B1 (ko) 전단가공장치
JP7364903B2 (ja) 形鋼の矯正装置および矯正方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21928020

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2023502059

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 202180092750.4

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 18547531

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2021928020

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2021928020

Country of ref document: EP

Effective date: 20230926