JP6357375B2

JP6357375B2 - Manufacturing method of heat exchanger fins

Info

Publication number: JP6357375B2
Application number: JP2014142598A
Authority: JP
Inventors: 隆太高井
Original assignee: Sango Co Ltd
Current assignee: Sango Co Ltd
Priority date: 2014-07-10
Filing date: 2014-07-10
Publication date: 2018-07-11
Anticipated expiration: 2034-07-10
Also published as: JP2016016446A

Description

本発明は、熱交換器用フィンの製造方法に関する。 The present invention relates to a manufacturing method of the heat exchanger fins.

従来、金属板を曲折して形成した熱交換器用のコルゲートフィンとして、上面と下面が略平行であり、この上面と下面に対して略直交する垂直面が形成された、いわゆる平板フィンが知られている。 Conventionally, as a corrugated fin for a heat exchanger formed by bending a metal plate, a so-called flat plate fin in which a top surface and a bottom surface are substantially parallel and a vertical surface substantially orthogonal to the top surface and the bottom surface is formed is known. ing.

上記従来の平板フィンをプレス成形により製造しようとすると、平板を曲げパンチにより略垂直となるように曲折する必要があるために、平板を曲折する際に、曲げパンチにおける垂直の形成面と平板とが擦れながらプレスされるために、製造した平板フィンにスプリングバックが生じて変形し、製造の際の部材の搬送に悪影響がでる恐れがある。 When trying to manufacture the conventional flat plate fin by press molding, it is necessary to bend the flat plate by the bending punch so that it is substantially vertical. Therefore, when bending the flat plate, the vertical forming surface and the flat plate in the bending punch Since the sheet is pressed while being rubbed, a spring back is generated in the manufactured flat fin and deformed, which may adversely affect the conveyance of the member during the manufacturing.

そこで、本発明は、スプリングパックが生じにくい熱交換器用のフィンの製造方法を提案することを目的とする。 Then, an object of this invention is to propose the manufacturing method of the fin for heat exchangers which a spring pack does not produce easily.

前記の課題を解決するために、請求項１記載の発明は、金属製の帯状の平板からなる被加工部材を、プレス成形して熱交換器用フィンを製造する熱交換器用フィンの製造方法において、
上曲げパンチにより、被加工部材を上方に曲げる上曲げ行程と、下曲げパンチにより、被加工部材を下方に曲げる下曲げ行程を有し、
前記上曲げパンチと下曲げパンチは、夫々、上曲げパンチと下曲げパンチの相対移動方向に対して傾斜する成形面を有し、この傾斜する成形面により前記被加工部材に傾斜面を成形し、
この傾斜面となる被加工部材の部分に複数の凹部又は／及び複数の凸部をプレス成形により形成する模様付け工程を有し、前記模様付け工程が行われた被加工部材の部分に対し前記上曲げ行程と下曲げ行程を行い、
前記上曲げパンチと下曲げパンチにおける傾斜する成形面には、前記模様付け工程で形成された凹部又は／及び凸部に対応した凸部又は／及び凹部が形成され、
前記上曲げパンチと下曲げパンチの成形面の凹部の底部又は／及び凸部の頂部は、上曲げパンチと下曲げパンチの相対移動方向に対して、平行か、若しくは、前記傾斜面側に傾斜するように形成され、
前記傾斜面を成形する際に、前記上曲げパンチと下曲げパンチの成形面の凸部又は／及び凹部が、前記模様付け工程で形成された凹部又は／及び凸部に当接するようにしたことを特徴とする熱交換器用フィンの製造方法である。 In order to solve the above-mentioned problem, the invention according to claim 1 is a heat exchanger fin manufacturing method for manufacturing a heat exchanger fin by press-molding a workpiece made of a metal belt-shaped flat plate,
An upper bending step of bending the workpiece by the upper bending punch, and a lower bending step of bending the workpiece by the lower bending punch,
Each of the upper bending punch and the lower bending punch has a forming surface inclined with respect to the relative movement direction of the upper bending punch and the lower bending punch, and the inclined surface is formed on the workpiece by the inclined forming surface. ,
It has the patterning process which forms a plurality of crevice or / and a plurality of convex parts by press molding in the part of the processed member used as this inclined surface, and it is the above to the part of the processed member in which the above-mentioned patterning process was performed. Perform the upper bending process and the lower bending process,
Convex portions or / and concave portions corresponding to the concave portions or / and convex portions formed in the patterning step are formed on the inclined molding surfaces in the upper bending punch and the lower bending punch,
The bottom part of the concave part or / and the top part of the convex part of the molding surface of the upper bending punch and the lower bending punch are parallel to the relative movement direction of the upper bending punch and the lower bending punch or inclined toward the inclined surface side. Formed to
When forming the inclined surface, the convex portions or / and concave portions of the molding surfaces of the upper bending punch and the lower bending punch are in contact with the concave portions or / and convex portions formed in the patterning step. This is a method for manufacturing a fin for a heat exchanger.

請求項２記載の発明は、請求項１記載の発明において、１サイクルの行程を所定回数繰り返すことにより製造される熱交換器用フィンの製造方法において、
１サイクルの行程は、
前記被加工部材を下流側に所定量移動させた後に、
以前のサイクルの行程で形成された凹部又は／及び凸部の部分を、前記上曲げ行程又は下曲げ行程を行った後に、
前記下曲げ行程又は上曲げ行程を行い、この下曲げ行程又は上曲げ行程を行った部分よりも上流側における所定の位置に模様付け工程を行うことを特徴とするものである。 Invention of Claim 2 is the manufacturing method of the fin for heat exchangers manufactured in the invention of Claim 1 by repeating the process of 1 cycle predetermined times,
The process of one cycle is
After moving the workpiece by a predetermined amount downstream,
After performing the upper bending process or the lower bending process on the concave part or / and the convex part formed in the process of the previous cycle,
The lower bending process or the upper bending process is performed, and the patterning process is performed at a predetermined position upstream of the portion where the lower bending process or the upper bending process is performed.

請求項３記載の発明は、請求項１又は２記載の発明において、前記上曲げ行程と下曲げ行程により形成した傾斜面を、再度プレス成形する成形工程を有することを特徴とするものである。 The invention described in claim 3 is characterized in that, in the invention described in claim 1 or 2 , the method further comprises a forming step of press-molding the inclined surface formed by the upper bending process and the lower bending process again.

請求項４記載の発明は、請求項３記載の発明において、前記１サイクルの行程は、
前記被加工部材を下流側に所定量移動させた後に、
以前のサイクルの工程で形成された傾斜面を再度プレス成形した後に、
以前のサイクルの行程で形成された凹部又は／及び凸部の部分を、前記上曲げ行程又は下曲げ行程を行った後に、
前記下曲げ行程又は上曲げ行程を行い、この下曲げ行程又は上曲げ行程を行った部分よりも上流側における所定の位置に模様付け工程を行ことを特徴とするものである。 According to a fourth aspect of the present invention, in the third aspect of the invention, the stroke of the one cycle is:
After moving the workpiece by a predetermined amount downstream,
After press forming the inclined surface formed in the previous cycle process again,
After performing the upper bending process or the lower bending process on the concave part or / and the convex part formed in the process of the previous cycle,
The lower bending process or the upper bending process is performed, and the patterning process is performed at a predetermined position upstream of the portion where the lower bending process or the upper bending process is performed.

請求項５記載の発明は、請求項２又は４記載の発明において、前記下曲げ行程又は上曲げ行程と模様付け工程を同時に行うことを特徴とするものである。 The invention according to claim 5 is the invention according to claim 2 or 4 , characterized in that the lower bending process or the upper bending process and the patterning step are performed simultaneously.

本発明の熱交換器用フィンの製造方法によれば、上曲げパンチと下曲げパンチは、夫々の上曲げパンチと下曲げパンチの相対移動方向に対して傾斜する成形面を有し、該傾斜する成形面により熱交換器用フィンに傾斜面を成形することにより、曲げパンチにより被加工部材を曲折する際に、被加工部材と曲げパンチとが擦れあうことを抑制して、スプリングバックが生じることを抑制し、製造時の不具合を解消することができる。 According to the heat exchanger fin manufacturing method of the present invention, the upper bending punch and the lower bending punch each have a molding surface that is inclined with respect to the relative movement direction of the upper bending punch and the lower bending punch, respectively. By forming the inclined surface on the heat exchanger fin by the molding surface, it is possible to suppress the friction between the workpiece and the bending punch when the workpiece is bent by the bending punch, and to generate a springback. It is possible to suppress the problem at the time of manufacture.

本発明の実施例１における熱交換器用フィンの斜視図。The perspective view of the fin for heat exchangers in Example 1 of this invention. 図１の横面図。The side view of FIG. 図１の部分拡大図。The elements on larger scale of FIG. 図２の部分拡大図。The elements on larger scale of FIG. 図２の左右方向から見た図。The figure seen from the left-right direction of FIG. 本発明の実施例１に用いる製造装置の模式図。The schematic diagram of the manufacturing apparatus used for Example 1 of this invention. 図６の状態から被加工部材１２を移動させた状態の図。The figure of the state which moved the to-be-processed member 12 from the state of FIG. 図７の状態から成形工程を行った状態の図。The figure of the state which performed the shaping | molding process from the state of FIG. 図８の状態から上曲げ工程を行った状態の図。The figure of the state which performed the upper bending process from the state of FIG. 図９の状態から下曲げ工程及び模様付け工程を行った状態の図。The figure of the state which performed the downward bending process and the patterning process from the state of FIG. 図１０の要部拡大図。The principal part enlarged view of FIG. 本発明の実施例２における熱交換器用フィンの一例の横面図。The side view of an example of the fin for heat exchangers in Example 2 of this invention. 本発明の実施例２における熱交換器用フィンの他例の横面図。The side view of the other example of the fin for heat exchangers in Example 2 of this invention. 本発明の実施例２における熱交換器用フィンの他例の横面図。The side view of the other example of the fin for heat exchangers in Example 2 of this invention. 本発明の実施例３に用いる製造装置の模式図の一部。A part of schematic diagram of the manufacturing apparatus used for Example 3 of the present invention. 図１５の上面図の一部。A part of top view of FIG. 本発明の実施例５に用いる製造装置の模式図。The schematic diagram of the manufacturing apparatus used for Example 5 of this invention.

本発明を実施するための形態を図に示す実施例に基づいて説明する。
［実施例１］
図１乃至図１１は実施例１を示す。 A mode for carrying out the present invention will be described based on an embodiment shown in the drawings.
[Example 1]
1 to 11 show a first embodiment.

図１は、本発明の熱交換器用フィンの製造方法により製造したコルゲートフィン１（以下フィン１という）の斜視図、図２はフィン１の横面図である。 FIG. 1 is a perspective view of a corrugated fin 1 (hereinafter referred to as “fin 1”) manufactured by the method for manufacturing a heat exchanger fin according to the present invention, and FIG. 2 is a lateral view of the fin 1.

フィン１は、図１〜図６に示すように、長尺の平板を、その長手方向（図１のＡ−Ｂ方向）において曲折して成形したもので、上面部２と下面部３を有し、上面部２と下面部３間を傾斜面４ａ，４ｂにより連結して、一体に形成されている。上面部２と下面部３は平面状に形成され、上面部２と下面部３は略平行に形成され、傾斜面４ａ，４ｂは、上面部２と下面部３に直交する面、すなわち、図２，４の上下方向に対して傾斜するとともに、相互に対向する傾斜面４ａ，４ｂを連結する上面部２（下面部３）から下面部３（上面部２）に向かうほど対向する傾斜面４ａ，４ｂの間隔が拡大するように形成されている。また、上面部２と傾斜面４ａ，４ｂとの連結部４ｃ、及び、下面部３と傾斜面４ａ，４ｂとの連結部４ｄは円弧状に形成されている。 As shown in FIGS. 1 to 6, the fin 1 is formed by bending a long flat plate in the longitudinal direction (A-B direction in FIG. 1), and has an upper surface portion 2 and a lower surface portion 3. In addition, the upper surface portion 2 and the lower surface portion 3 are connected to each other by the inclined surfaces 4a and 4b and are integrally formed. The upper surface portion 2 and the lower surface portion 3 are formed in a planar shape, the upper surface portion 2 and the lower surface portion 3 are formed substantially in parallel, and the inclined surfaces 4a and 4b are surfaces orthogonal to the upper surface portion 2 and the lower surface portion 3, that is, Inclined surface 4a which inclines with respect to the up-down direction of 2,4 and opposes as it goes to the lower surface part 3 (upper surface part 2) from the upper surface part 2 (lower surface part 3) which connects inclined surface 4a, 4b which opposes mutually. , 4b is formed so as to be widened. Moreover, the connection part 4c of the upper surface part 2 and inclined surface 4a, 4b and the connection part 4d of the lower surface part 3 and inclined surface 4a, 4b are formed in circular arc shape.

対向する傾斜面４ａ，４ｂと上面部２で囲まれた空間６を、流体、若しくは、この流体と熱交換する媒体が図２の紙面の表裏方向に流通し、傾斜面４ａ，４ｂと下面部３で囲まれた空間７を他方の媒体又は流体が図２の紙面の表裏方向に流通するようになっている。空間６を囲う傾斜面４ａ，４ｂと上面部２と下面部３で１つのリブ１０が構成されている。 A fluid or a medium that exchanges heat with the fluid flows in the space 6 surrounded by the opposed inclined surfaces 4a and 4b and the upper surface portion 2 in the front and back direction of the paper surface of FIG. 2, and the inclined surfaces 4a and 4b and the lower surface portion In the space 7 surrounded by 3, the other medium or fluid flows in the front and back direction of the paper surface of FIG. One rib 10 is formed by the inclined surfaces 4 a and 4 b surrounding the space 6, the upper surface portion 2 and the lower surface portion 3.

傾斜面４ａ，４ｂには、図３，図５に示すように、空間６（７）の流通方向（図１のＣ−Ｄ方向）に適宜間隔を有して凹部８と凸部９が交互に複数形成されている。凹部８と凸部９は、上下方向には１つのみが形成されている。また、対向する傾斜面４ａ，４ｂには、一方の面に凹部８が、他方の面に凸部９が、相互に向かい合うように形成されている。凹部８の底部８ａ、凸部９の頂部９ａは、図４に示すように、上面部２と下面部３に対して直交するか、もしくは、上面部２と下面部３に対する直交面に対して、傾斜面４ａ，４ｂ側に傾斜するように形成されている。 As shown in FIGS. 3 and 5, the inclined surfaces 4 a and 4 b have alternating recesses 8 and protrusions 9 with an appropriate interval in the flow direction of the space 6 (7) (the CD direction in FIG. 1). A plurality are formed. Only one concave portion 8 and convex portion 9 are formed in the vertical direction. Further, the opposing inclined surfaces 4a and 4b are formed with a concave portion 8 on one surface and a convex portion 9 on the other surface so as to face each other. As shown in FIG. 4, the bottom 8 a of the recess 8 and the top 9 a of the projection 9 are orthogonal to the upper surface 2 and the lower surface 3, or are orthogonal to the upper surface 2 and the lower surface 3. It is formed so as to be inclined toward the inclined surfaces 4a and 4b.

フィン１の空間６（７）の流通方向（Ｃ−Ｄ方向）に適宜間隔を有して凹部８と凸部９を交互に夫々複数形成したことにより、流体が流通する際に乱流が生じ、流体と媒体との熱交換効率を向上させることができる。 By forming a plurality of recesses 8 and projections 9 alternately with appropriate intervals in the flow direction (CD direction) of the space 6 (7) of the fin 1, turbulent flow is generated when the fluid flows. The heat exchange efficiency between the fluid and the medium can be improved.

次に、フィン１の製造に用いる製造装置１１について説明する。 Next, the manufacturing apparatus 11 used for manufacturing the fin 1 will be described.

フィン１の原材料で金属製の帯状の平板からなる被加工部材１２は、図６の矢印Ｆ方向に、供給源であるコイル１２ａからプレス装置１４へと適宜供給されるようになっている。 A workpiece 12 made of a metal belt-like flat plate as a raw material of the fin 1 is appropriately supplied from the coil 12a as a supply source to the press device 14 in the direction of arrow F in FIG.

搬送部１３であるフィーダは、このフィーダを作動させることにより、所定の速度で被加工部材１２を矢印Ｆ方向に搬送できるとともに、矢印Ｆ方向に対しては、被加工部材１２の移動は抑制せず、被加工部材１２を矢印Ｆ方向へ動かす力が作用した際にも被加工部材１２は矢印Ｆ方向に移動することができるようになっている。 The feeder which is the transport unit 13 can transport the workpiece 12 in the direction of the arrow F at a predetermined speed by operating the feeder, and suppress the movement of the workpiece 12 in the direction of the arrow F. First, the workpiece 12 can be moved in the direction of the arrow F even when a force for moving the workpiece 12 in the direction of the arrow F is applied.

プレス装置１４は、第１規制部１５と、模様付け上型１６と、模様付け下型１７と、上曲げパンチ１８と、下曲げパンチ１９と、成形上型２０と、成形下型２１と、第２規制部２２を有する。 The pressing device 14 includes a first restricting portion 15, a patterned upper mold 16, a patterned lower mold 17, an upper bending punch 18, a lower bending punch 19, a molding upper mold 20, a molding lower mold 21, A second restricting portion 22 is included.

第１規制部１５は、上規制部１５ａと下規制部１５ｂを有し、上規制部１５ａと下規制部１５ｂ間に、被加工部材１２である平板が挿通され、この平板（被加工部材１２）は、上流側から下流側への移動方向（矢印Ｆ方向）に移動できるようになっている。また、第１規制部１５により平板１２が矢印Ｆ方向に対する左右横方向への移動が規制されている。また、第１規制部１５は、移動手段２５により、上型２７と下型２８に対して、平板１２とともに上下方向に移動できるようになっている。 The 1st control part 15 has the upper control part 15a and the lower control part 15b, and the flat plate which is the to-be-processed member 12 is inserted between the upper control part 15a and the lower control part 15b, and this flat plate (processed member 12). ) Can move in the movement direction (arrow F direction) from the upstream side to the downstream side. Further, the movement of the flat plate 12 in the lateral direction with respect to the arrow F direction is restricted by the first restricting portion 15. The first restricting portion 15 can be moved in the vertical direction together with the flat plate 12 with respect to the upper die 27 and the lower die 28 by the moving means 25.

第１規制部１５の下流側には模様付け上型１６と模様付け下型１７が設けられ、模様付け上型１６と、模様付け下型１７には、フィン１における凹部８と凸部９に対応した凹凸１６ａ，１７ａが図６の紙面の表裏方向に交互に複数形成されている。模様付け上型１６は上型２７に固設され、模様付け上型１６は上型２７とともに図示しない移動手段により上下方向に移動できるようになっている。模様付け下型１７は、下型２８に対して固設されている。模様付け上型１６と、模様付け下型１７により、被加工部材１２の所定の場所に凹部８と凸部９を形成することができるようになっている。 A patterning upper die 16 and a patterning lower die 17 are provided on the downstream side of the first restricting portion 15. The patterning upper die 16 and the patterning lower die 17 are provided on the concave portion 8 and the convex portion 9 in the fin 1. Corresponding irregularities 16a, 17a are alternately formed in the front and back direction of the paper surface of FIG. The patterned upper mold 16 is fixed to the upper mold 27, and the patterned upper mold 16 can be moved in the vertical direction together with the upper mold 27 by a moving means (not shown). The patterned lower mold 17 is fixed to the lower mold 28. The patterned upper die 16 and the patterned lower die 17 can form the concave portion 8 and the convex portion 9 at predetermined positions of the workpiece 12.

模様付け下型１７の下流側の下型２８には上曲げパンチ１８が設けられ、図１１に示すように、上曲げパンチ１８は、被加工部材１２に対する相対的移動方向（本実施例においては上下方向）に対して傾斜する第１成形面１８ａを有し、第１成形面１８ａには、フィン１における凹部８と凸部９に対応した凸部１８ｃと凹部１８ｂが、図１１の紙面の表裏方向に交互に複数形成されている。上曲げパンチ１８は、下型２８に固設されている。 An upper bending punch 18 is provided on the lower mold 28 on the downstream side of the patterned lower mold 17, and as shown in FIG. 11, the upper bending punch 18 moves relative to the workpiece 12 (in this embodiment, 11 has a first molding surface 18a inclined with respect to the vertical direction), and the first molding surface 18a has a convex portion 18c and a concave portion 18b corresponding to the concave portion 8 and the convex portion 9 in the fin 1, as shown in FIG. A plurality are alternately formed in the front and back directions. The upper bending punch 18 is fixed to the lower mold 28.

模様付け上型１６の下流側の上型２７には下曲げパンチ１９が設けられ、図１１に示すように、下曲げパンチ１９は、被加工部材１２に対する相対的移動方向（本実施例においては上下方向）に対して傾斜する第２成形面１９ａを有し、第２成形面１９ａには、凹部８と凸部９に対応した凸部１９ｃと凹部１９ｂが、図１１の紙面の表裏方向に交互に複数形成されている。下曲げパンチ１９は、上型２７に固設されている。 A lower bending punch 19 is provided on the upper die 27 on the downstream side of the patterning upper die 16, and as shown in FIG. 11, the lower bending punch 19 moves relative to the workpiece 12 (in this embodiment, The second molding surface 19a is inclined with respect to the vertical direction), and the second molding surface 19a has a convex portion 19c and a concave portion 19b corresponding to the concave portion 8 and the convex portion 9 in the front and back direction of the paper surface of FIG. A plurality are alternately formed. The lower bending punch 19 is fixed to the upper mold 27.

成形上型２０には、図６，７に示すように、フィン１のリブ１０に対応した形状に形成された成形面２０ａが、被加工部材１２の移動方向Ｆに４つ連続して形成されている。成形上型２０は、移動手段３２により上型２７に対して上下方向に移動できるようになっている。成形下型２１も、図６，７に示すように、フィン１のリブ１０に対応した形状に形成された成形面２１ａが、被加工部材１２の移動方向Ｆに４つ連続して形成されている。成形下型２１は、移動手段３３により下型２８に対して上下方向に移動できるようになっている。成形上型２０の成形面２０ａと成形下型２１の成形面２１ａとが噛合するように、成形上型２０と成形下型２１は配置されている。 As shown in FIGS. 6 and 7, the molding upper mold 20 has four molding surfaces 20 a formed in a shape corresponding to the ribs 10 of the fin 1 in the direction of movement F of the workpiece 12. ing. The molding upper mold 20 can be moved in the vertical direction with respect to the upper mold 27 by the moving means 32. As shown in FIGS. 6 and 7, the molding lower mold 21 is also formed with four molding surfaces 21 a formed in a shape corresponding to the ribs 10 of the fin 1 in the movement direction F of the workpiece 12. Yes. The molded lower mold 21 can be moved in the vertical direction with respect to the lower mold 28 by the moving means 33. The molding upper mold 20 and the molding lower mold 21 are arranged so that the molding surface 20a of the molding upper mold 20 and the molding surface 21a of the molding lower mold 21 are engaged with each other.

なお、成形面２０ａ、２１ａはすべて同じ形状に形成してもよいし、加工する原料等に応じて形状が徐々に異なるように形成してもよい。また、成形面２０ａ、２１ａの数は任意に設定する。 The molding surfaces 20a and 21a may all be formed in the same shape, or may be formed so that the shapes are gradually different depending on the raw material to be processed. The number of molding surfaces 20a and 21a is arbitrarily set.

成形上型２０と成形下型２１の下流側には第２規制部２２が設けられ、第２規制部２２は、上規制部２２ａと下規制部２２ｂを有し、上規制部２２ａと下規制部２２ｂ間に、成形された複数のリブ１０が挿通され、これらは所定の移動方向（図６の右側方向）に移動できるようになっているとともに、その移動方向における左右横方向への移動は規制されている。また、第２規制部２２は、移動手段３５により、上型２７と下型２８に対して、被加工部材１２とともに上下方向に移動できるようになっている。 A second restricting portion 22 is provided on the downstream side of the forming upper mold 20 and the forming lower die 21, and the second restricting portion 22 includes an upper restricting portion 22a and a lower restricting portion 22b, and the upper restricting portion 22a and the lower restricting portion 22b. A plurality of molded ribs 10 are inserted between the portions 22b, and these can be moved in a predetermined moving direction (right side in FIG. 6). It is regulated. The second restricting portion 22 can be moved in the vertical direction together with the workpiece 12 with respect to the upper mold 27 and the lower mold 28 by the moving means 35.

次に、フィン１は、次に説明する１サイクルの行程を所定回数繰り返した後に、シャー刃等の切断手段により所定の位置で切断すことにより製造されるもので、この１サイクルの行程について説明する。 Next, the fin 1 is manufactured by repeating the process of one cycle described below a predetermined number of times and then cutting at a predetermined position by a cutting means such as a shear blade. The process of this one cycle will be described. To do.

先ず、図６に示すように、第１規制部１５、模様付け上型１６、模様付け下型１７、上曲げパンチ１８、下曲げパンチ１９、成形上型２０、成形下型２１、第２規制部２２、上型２７、下型２８が所定の位置に配置される。また、被加工部材１２も所定の位置に配置されている。なお、図６に示す被加工部材１２は、１サイクルをある回数繰り返した後の形状を示す。 First, as shown in FIG. 6, the first restriction portion 15, the patterned upper mold 16, the patterned lower mold 17, the upper bending punch 18, the lower bending punch 19, the molding upper mold 20, the molding lower mold 21, the second regulation The part 22, the upper mold 27, and the lower mold 28 are arranged at predetermined positions. The workpiece 12 is also arranged at a predetermined position. 6 shows a shape after one cycle is repeated a certain number of times.

次に、図７に示すように、図示しない移動手段により、被加工部材１２が図６の下流側に所定量（本実施例では１つのリブ１０の厚み分）移動するとともに、搬送部１３が作動しコイル１２ａから帯状の平板が、プレス装置１４に供給される。 Next, as shown in FIG. 7, the workpiece 12 is moved by a predetermined amount (by the thickness of one rib 10 in this embodiment) to the downstream side of FIG. A belt-like flat plate is operated and supplied to the press device 14 from the coil 12a.

次に、図８に示すように、移動手段２５、３５により、第１規制部１５、第２規制部２２を所定量下方に移動させて、被加工部材１２を下方に移動させるとともに、移動手段３２により成形上型２０を所定量下降させて、成形上型２０と成形下型２１により、前回の行程で形成された４つのリブ１０を再度プレスする成形工程が行われる。一つの成形工程を終えると、次回の行程では、被加工部材１２を、１つのリブ１０分、右隣の形成面２０ａ，２１ａに移動して、再度成形工程が行われるため、フィン１が完成するまでに４回の成形工程を経ることとなる。この成形工程を４回経ることにより、フィン１のリブ１０は所定の形状に成形されるようになっている。 Next, as shown in FIG. 8, the moving means 25 and 35 move the first restricting portion 15 and the second restricting portion 22 downward by a predetermined amount to move the workpiece 12 downward and move means. A molding process is performed in which the molding upper mold 20 is lowered by a predetermined amount by 32 and the four ribs 10 formed in the previous stroke are pressed again by the molding upper mold 20 and the molding lower mold 21. When one molding process is completed, in the next process, the workpiece 12 is moved to the formation surface 20a, 21a adjacent to the right by one rib 10 minutes, and the molding process is performed again, so that the fin 1 is completed. Until then, four molding steps are required. By passing this molding process four times, the rib 10 of the fin 1 is molded into a predetermined shape.

この成形工程では、前回の行程で形成された４つのリブ１０を再度プレス成形した後、１サイクルの行程が終了するまでは、成形上型２０と成形下型２１とを相対的に離間させないため、被加工部材１２を所定の位置に保持する位置決めの役割を果たすことができ、本発明では、被加工部材１２の上流側端部に設けた位置決め穴等の位置決めを行う部分を設ける必要がなくなり、材料の歩留まりを向上させることができる。 In this molding process, after the four ribs 10 formed in the previous process are press-molded again, the upper mold 20 and the lower mold 21 are not relatively separated until one cycle of the process is completed. Therefore, it is possible to play a role of holding the workpiece 12 in a predetermined position, and in the present invention, it is not necessary to provide a positioning portion such as a positioning hole provided in the upstream end of the workpiece 12. The yield of the material can be improved.

次に、図９に示すように、移動手段２５、３５により、第１規制部１５、第２規制部２２を所定量下方に移動させるとともに、移動手段３２、３３により成形上型２０と成形下型２１を所定量下降させる。なお、第１規制部１５の移動量と、第２規制部２２、成形上型２０、成形下型２１の移動量は異なる。 Next, as shown in FIG. 9, the first restricting portion 15 and the second restricting portion 22 are moved downward by a predetermined amount by the moving means 25 and 35, and the upper mold 20 and the lower mold are moved by the moving means 32 and 33. The mold 21 is lowered by a predetermined amount. In addition, the movement amount of the 1st control part 15 and the movement amount of the 2nd control part 22, the shaping | molding upper mold | type 20, and the shaping | molding lower mold | type 21 differ.

この際、被加工部材１２は、上曲げパンチ１８に当接して、上曲げパンチ１８により被加工部材１２の所定の場所は上方向に曲折され、上曲げパンチ１８と被加工部材１２との相対的移動方向（上下方向）に対して傾斜する傾斜面４ａが形成され上曲げ行程が行われる。この傾斜面４ａには、前回の行程で形成された凹部８と凸部９が形成されている。この上曲げ行程の際に、上曲げパンチ１８よりも上流側の被加工部材１２においては下流側への移動（矢印Ｆ方向への移動）が抑制されていないために、搬送部１３であるフィーダは作動させなくても、第１規制部１５、第２規制部２２、成形上型２０、成形下型２１、上曲げパンチ１８の移動等の力により、コイル１２ａにより帯状の金属板がプレス装置１４に引き込まれる。 At this time, the workpiece 12 abuts on the upper bending punch 18, and a predetermined location of the workpiece 12 is bent upward by the upper bending punch 18, so that the relative relationship between the upper bending punch 18 and the workpiece 12 is relative. An inclined surface 4a that is inclined with respect to the target movement direction (vertical direction) is formed, and an upward bending process is performed. A concave portion 8 and a convex portion 9 formed in the previous stroke are formed on the inclined surface 4a. During the upper bending process, the workpiece 12 on the upstream side of the upper bending punch 18 is not restrained from moving downstream (moving in the direction of arrow F). The belt-like metal plate is pressed by the coil 12a by a force such as movement of the first restricting portion 15, the second restricting portion 22, the forming upper die 20, the forming lower die 21, and the upper bending punch 18 without being operated. 14 is drawn.

次に、図１０に示すように、図示しない移動手段により上型２７を所定量下方に移動させ、この上型２７とともに、模様付け上型１６と下曲げパンチ１９を所定量下降させる。また、同時に、移動手段２５により第１規制部１５を下方に移動させる。この際、移動手段３２、３５により、成形上型２０及び第２規制部２２の位置は変化せず、上型２７と、成形上型２０及び第２規制部２２間の距離は狭くなる。 Next, as shown in FIG. 10, the upper die 27 is moved downward by a predetermined amount by a moving means (not shown), and the patterned upper die 16 and the lower bending punch 19 are lowered by a predetermined amount together with the upper die 27. At the same time, the first restricting portion 15 is moved downward by the moving means 25. At this time, the positions of the molding upper mold 20 and the second restricting portion 22 are not changed by the moving means 32 and 35, and the distance between the upper die 27 and the molding upper mold 20 and the second restricting portion 22 is narrowed.

図１０に示すように、下曲げパンチ１９が下降すると、被加工部材１２は、下曲げパンチ１９に当接して、下曲げパンチ１９により被加工部材１２の所定の場所は下方向に曲折され、下曲げパンチ１９と被加工部材１２との相対的移動方向（上下方向）に対して傾斜する傾斜面４ｂが形成される下曲げ行程が行われる。この傾斜面４ｂには、前回の行程で形成された凹部８と凸部９が形成されている。この下曲げ行程の際にも、下曲げパンチ１９よりも上流側の被加工部材１２においては下流側への移動（矢印Ｆ方向への移動）が抑制されていないために、搬送部１３であるフィーダは作動させなくても、下曲げパンチ１９の移動等の力により、コイル１２ａにより帯状の金属板がプレス装置１４に引き込まれる。 As shown in FIG. 10, when the lower bending punch 19 is lowered, the workpiece 12 comes into contact with the lower bending punch 19, and a predetermined place of the workpiece 12 is bent downward by the lower bending punch 19, A downward bending process is performed in which an inclined surface 4b that is inclined with respect to the relative movement direction (vertical direction) between the downward bending punch 19 and the workpiece 12 is formed. The inclined surface 4b is formed with a concave portion 8 and a convex portion 9 formed in the previous stroke. Even during this downward bending process, the workpiece 12 on the upstream side of the lower bending punch 19 is not restrained from moving downstream (moving in the direction of arrow F), so that it is the transport unit 13. Even if the feeder is not operated, a belt-shaped metal plate is drawn into the press device 14 by the coil 12a by a force such as movement of the lower bending punch 19.

また、図１０に示すように、模様付け上型１６の下降により、被加工部材１２の所定の位置には、模様付け上型１６と模様付け下型１７によりプレスされて、凹部８と凸部９が形成される模様付け工程が行われる。このように、下曲げ行程と模様付け工程が同時に行われる。 Further, as shown in FIG. 10, when the patterned upper mold 16 is lowered, the processed member 12 is pressed into a predetermined position by the patterned upper mold 16 and the patterned lower mold 17, so that the concave portion 8 and the convex portion are pressed. The patterning process in which 9 is formed is performed. Thus, the downward bending process and the patterning process are performed simultaneously.

次に、図６に示すように、図示しない移動手段により上型２７を上方に移動させて、模様付け上型１６、下曲げパンチ１９、成形上型２０を所定位置まで上昇させるとともに、移動手段２５，３２，３３，３５により、第１規制部１５、、成形下型２１、第２規制部２２を所定の位置まで上昇させて、被加工部材１２を、模様付け上型１６、模様付け下型１７、上曲げパンチ１８、下曲げパンチ１９、成形上型２０、成形下型２１から脱型して、１サイクルの行程が終了する。 Next, as shown in FIG. 6, the upper die 27 is moved upward by a moving means (not shown) to raise the patterned upper die 16, the lower bending punch 19, and the forming upper die 20 to predetermined positions, and the moving means. 25, 32, 33, 35, the first restricting portion 15, the lower molding die 21, and the second restricting portion 22 are raised to predetermined positions so that the workpiece 12 is moved to the upper pattern 16 and the lower pattern The mold 17, the upper bending punch 18, the lower bending punch 19, the molding upper mold 20, and the molding lower mold 21 are removed from the mold, and one cycle process is completed.

上記のように被加工部材１２を、その上流側から下流側に向かって順にプレス成形をしていくため、コイル１２ａから被加工部材１２を順次過不足なく供給することができ、被加工部材１２が途中で破断することを防止できる。また、被加工部材１２の移動を常に、搬送部１３であるフィーダを作動させて行う必要がないため、成形工程、上曲げ行程、下曲げ行程、模様付け工程を行うタイミングと搬送部１３が作動するタイミングを図る必要がなくなり、プレス装置１４の設計が容易になる。 Since the workpiece 12 is press-formed in order from the upstream side to the downstream side as described above, the workpiece 12 can be sequentially supplied from the coil 12a without excess or deficiency. Can be prevented from breaking along the way. Further, since it is not necessary to always move the workpiece 12 by operating the feeder which is the transport unit 13, the timing of performing the molding process, the upper bending process, the lower bending process, and the patterning process and the transport unit 13 are operated. This eliminates the need to set the timing of the press and facilitates the design of the press device 14.

また、フィン１に傾斜面４ａ，４ｂを設けたことにより、曲げパンチ１８と１９、成形上型２０と成形下型２１によりプレス成形する際に、型またはパンチと被加工部材１２とが擦れる部分を従来技術のものよりも少なく抑えることができ、被加工部材１２にスプリングバックが生じることを低減することができ、製造工程における被加工部材１２の搬送をスムーズに行うとともに、製造したフィン１の変形を抑制することができ、製品の品質の向上を図るとともに、製造コストを削減できる。 Further, by providing the fins 1 with the inclined surfaces 4a and 4b, when the press punching is performed by the bending punches 18 and 19 and the forming upper die 20 and the forming lower die 21, the die or punch and the workpiece 12 are rubbed. Can be suppressed to be less than that of the prior art, the occurrence of springback in the workpiece 12 can be reduced, the workpiece 12 can be smoothly conveyed in the manufacturing process, and the manufactured fin 1 The deformation can be suppressed, the product quality can be improved, and the manufacturing cost can be reduced.

また、フィン１の傾斜面４ａ，４ｂに凹部８と凸部９を設け、この凹部８の底部８ａ、凸部９の頂部９ａは、上面部２と下面部３に対して直交するか、もしくは、上面部２と下面部３に対する直交面に対して、傾斜面４ａ，４ｂ側に傾斜するように形成したことにより、曲げパンチ１８と１９、成形上型２０と成形下型２１等によりプレス成形する際に、曲げパンチ１８と１９が凹部８と凸部９に干渉することなく、被加工部材１２を曲折して傾斜部４ａ，４ｂを形成することができる。また、成形上型２０と成形下型２１によりプレス成形する際に、型２０，２１により凹部８と凸部９が変形することがない。また、被加工部材１２から、曲げパンチ１８と１９、成形上型２０と成形下型２１を型抜きする際にも、凹部８と凸部９が干渉することがない。 Further, the inclined surface 4a, 4b of the fin 1 is provided with a concave portion 8 and a convex portion 9, and the bottom portion 8a of the concave portion 8 and the top portion 9a of the convex portion 9 are orthogonal to the upper surface portion 2 and the lower surface portion 3, or By forming so as to incline toward the inclined surfaces 4a and 4b with respect to the plane perpendicular to the upper surface portion 2 and the lower surface portion 3, press molding is performed by the bending punches 18 and 19, the molding upper die 20 and the molding lower die 21 and the like. In doing so, the workpieces 12 can be bent to form the inclined portions 4 a and 4 b without the bending punches 18 and 19 interfering with the concave portions 8 and the convex portions 9. Further, when press molding is performed with the molding upper mold 20 and the molding lower mold 21, the concave portions 8 and the convex portions 9 are not deformed by the molds 20 and 21. Further, when the bending punches 18 and 19, the molding upper mold 20 and the molding lower mold 21 are punched from the workpiece 12, the concave portion 8 and the convex portion 9 do not interfere with each other.

このように、１つの製造装置１１のみでフィン１を製造することができるために、製造装置を小型化できるとともに、その設置スペースを低減でき製造コストを低減することができる。 Thus, since the fin 1 can be manufactured only with one manufacturing apparatus 11, while being able to reduce a manufacturing apparatus, the installation space can be reduced and manufacturing cost can be reduced.

なお、夫々の型やパンチが相対的に上述のように動くことができればよく、被加工部材１２、第１規制部１５、模様付け上型１６、模様付け下型１７、上曲げパンチ１８、下曲げパンチ１９、成形上型２０、成形下型２１、第２規制部２２における夫々の上下方向の移動及び上流又は下流側方向への移動は任意に設定することができる。 Note that it is only necessary that the respective molds and punches can move relatively as described above, and the workpiece 12, the first restriction portion 15, the patterned upper mold 16, the patterned lower mold 17, the upper bending punch 18, the lower The movement in the up-down direction and the movement in the upstream or downstream direction in the bending punch 19, the molding upper mold 20, the molding lower mold 21, and the second restricting portion 22 can be arbitrarily set.

また、前記凹部８と凸部９の形状は、図面に示されている形状に限定されず任意に設定することができる。 Moreover, the shape of the said recessed part 8 and the convex part 9 is not limited to the shape shown by drawing, It can set arbitrarily.

また、傾斜面４ａ，４ｂの角度、長さも任意に設定することができる。また、上記のような上面部２と下面部３を形成せずに、隣接する傾斜面４ａ，４ｂ間を円弧状の円弧部で連結するようにしてもよい。 Further, the angles and lengths of the inclined surfaces 4a and 4b can be arbitrarily set. Moreover, you may make it connect between the adjacent inclined surfaces 4a and 4b by a circular arc-shaped arc part, without forming the upper surface part 2 and the lower surface part 3 as mentioned above.

また、フィン１は、コルゲートフィン以外にも熱交換器用のフィンであれば任意のフィンに適用することができる。 Moreover, if the fin 1 is a fin for heat exchangers besides a corrugated fin, it can be applied to arbitrary fins.

［実施例２］
前記実施例１では、フィン１の傾斜面４ａ，４ｂに、凹部８と凸部９を交互に形成するとともに、対向する傾斜面４ａ，４ｂには、その一方の面に凹部８を形成し、他方の面には、凹部８に対向して凸部９を形成したが、傾斜面４ａに、凹部８又は／及び凸部９が形成されていれば、その位置は任意に設定することができる。 [Example 2]
In the first embodiment, the concave surfaces 8 and the convex portions 9 are alternately formed on the inclined surfaces 4a and 4b of the fin 1, and the concave surfaces 8 are formed on one surface of the opposing inclined surfaces 4a and 4b. Although the convex part 9 was formed facing the concave part 8 on the other surface, the position can be arbitrarily set as long as the concave part 8 and / or the convex part 9 are formed on the inclined surface 4a. .

例えば、図１２に示すように、傾斜面４ａ，４ｂの双方に凸部９のみを形成してもよいし、図１３に示すように、傾斜面４ａ，４ｂの双方に凹部８のみを形成してもよいし、図１４に示すように、傾斜面４ａ，４ｂの一方の面４ｂには凸部９のみ、他方の面４ａには凹部８のみを形成するようにしてもよい。 For example, as shown in FIG. 12, only the convex portion 9 may be formed on both of the inclined surfaces 4a and 4b, or only the concave portion 8 is formed on both of the inclined surfaces 4a and 4b as shown in FIG. Alternatively, as shown in FIG. 14, only the convex portion 9 may be formed on one surface 4b of the inclined surfaces 4a and 4b, and only the concave portion 8 may be formed on the other surface 4a.

その他の構造は、上記実施例１と同様であるので、その説明を省略する。 Since other structures are the same as those of the first embodiment, description thereof is omitted.

本実施例２においても前記実施例１と同様の作用、効果を発揮することができる。 Also in the second embodiment, the same operations and effects as those of the first embodiment can be exhibited.

［実施例３］
図１５，１６は実施例３を示す。 [Example 3]
15 and 16 show the third embodiment.

上記下規制部２２ｂを、図１５，図１６に示すように、下流側に延設して、第２規制部２２と同期して上下方向に移動できる製品リフター５１を、下規制部２２ｂと一体に形成し、この製品リフター５１の両側部に、図１６に示すように、成形されたリブ１０、１０間の空間６又は７の側部に噛合できるピッチの歯車５２を設け、この歯車５２を図示しない回転駆動手段により回動させて、被加工部材１２を下流側方向に移動するようにしてもよい。 As shown in FIGS. 15 and 16, the lower restricting portion 22b extends downstream, and a product lifter 51 that can move in the vertical direction in synchronization with the second restricting portion 22 is integrated with the lower restricting portion 22b. As shown in FIG. 16, a gear 52 having a pitch that can mesh with the side of the space 6 or 7 between the formed ribs 10 and 10 is provided on both sides of the product lifter 51. The workpiece 12 may be moved in the downstream direction by being rotated by a rotation driving means (not shown).

また、製品リフター５１の上面の下流側部には、図１５に示すように、下流側から上流側に向かうほど上昇するテーパ面と、テーパ面の下流側端に設けたほぼ垂直に起立するストッパー面とからなる位置決め部５３を、上流側から下流側に向かって、適宜間隔で複数形成されている。この位置決め部５３にリブ１０が係合することで、被加工部材１２が上流側方向の移動することを抑制し、シャー刃等の切断手段５６による被加工部材１２の切断場所の位置決めを行うことができる。 Further, on the downstream side of the upper surface of the product lifter 51, as shown in FIG. 15, a tapered surface that rises from the downstream side toward the upstream side, and a stopper that rises substantially vertically provided at the downstream end of the tapered surface. A plurality of positioning portions 53 each having a surface are formed at appropriate intervals from the upstream side toward the downstream side. By engaging the rib 10 with the positioning portion 53, the workpiece 12 is prevented from moving in the upstream direction, and the cutting location of the workpiece 12 is positioned by the cutting means 56 such as a shear blade. Can do.

また、歯車５２は、図示しない機構により、上型２７の上昇動に連動して回動するようにしてもよい。 The gear 52 may be rotated in conjunction with the upward movement of the upper mold 27 by a mechanism (not shown).

その他の構造は、上記実施例１、２と同様であるので、その説明を省略する。 Since other structures are the same as those of the first and second embodiments, description thereof is omitted.

本実施例３においても前記実施例１、２と同様の作用、効果を発揮することができる。 Also in the third embodiment, the same operations and effects as in the first and second embodiments can be exhibited.

［実施例４］
前記成形上型２０と成形下型２１の形成面２０ａ、２１ａを、前記実施例１〜３の４つよりも多くするとともに、形成面２０ａ、２１ａの形状を、上流側から下流側に向かって徐々に変化させることにより、曲げパンチ１８，１９で形成した形状とは異なる形状のリブ１０を有するフィンを製造するようにしてもよい。 [Example 4]
The forming surfaces 20a and 21a of the molding upper mold 20 and the molding lower die 21 are made larger than the four in the first to third embodiments, and the shape of the forming surfaces 20a and 21a is changed from the upstream side toward the downstream side. By gradually changing the shape, fins having ribs 10 having a shape different from the shape formed by the bending punches 18 and 19 may be manufactured.

例えば、移動方向Ｆに対して直交する方向（Ｃ−Ｄ方向）において、その中央から両側部に至る曲率を徐々に強くなるように形成し、リブ１０を図２の紙面の表裏方向の形状が円弧となるように形成してもよい。 For example, in the direction orthogonal to the moving direction F (C-D direction), the curvature from the center to both sides is gradually increased, and the rib 10 has a shape in the front and back direction of the paper surface of FIG. You may form so that it may become a circular arc.

その他の構造は、上記実施例１〜３と同様であるので、その説明を省略する。 Since the other structure is the same as that of the said Examples 1-3, the description is abbreviate | omitted.

本実施例４においても前記実施例１〜３と同様の作用、効果を発揮することができる。 Also in the fourth embodiment, the same operations and effects as the first to third embodiments can be exhibited.

［実施例５］
図１７は実施例５を示す。 [Example 5]
FIG. 17 shows a fifth embodiment.

前記実施例１〜４においては、模様付け上型１６と模様付け下型１７による模様付け工程を設けたが、図１７に示すように、この模様付け上型１６と模様付け下型１７を設けずに模様付け工程を設けなくてもよい。 In Examples 1 to 4, the patterning process using the patterning upper mold 16 and the patterning lower mold 17 is provided. As shown in FIG. 17, the patterning upper mold 16 and the patterning lower mold 17 are provided. It is not necessary to provide a patterning process.

その他の構造は、上記実施例１〜４と同様であるので、その説明を省略する。 Since the other structure is the same as that of the said Examples 1-4, the description is abbreviate | omitted.

本実施例５においても前記実施例１〜４と同様の作用、効果を発揮することができる。 Also in the fifth embodiment, the same actions and effects as those of the first to fourth embodiments can be exhibited.

［実施例６］
前記実施例１〜５においては、成形上型２０と成形下型２１による成形工程を設けたが、この成形上型２０と成形下型２１を設けずに成形工程を設けなくてもよい。 [Example 6]
In the first to fifth embodiments, the molding process using the molding upper mold 20 and the molding lower mold 21 is provided. However, the molding process may not be provided without providing the molding upper mold 20 and the molding lower mold 21.

その他の構造は、上記実施例１〜５と同様であるので、その説明を省略する。 Since the other structure is the same as that of the said Examples 1-5, the description is abbreviate | omitted.

本実施例６においても前記実施例１〜５と同様の作用、効果を発揮することができる。 Also in the sixth embodiment, the same actions and effects as in the first to fifth embodiments can be exhibited.

［実施例７］
前記実施例１〜６においては、下曲げ行程と模様付け工程を同時に行ったが、下曲げ行程を行った後に、模様付け工程を行うようにしてもよい。 [Example 7]
In Examples 1 to 6, the lower bending process and the patterning process are performed at the same time. However, the patterning process may be performed after the lower bending process.

その他の構造は、上記実施例１〜６と同様であるので、その説明を省略する。 Since the other structure is the same as that of the said Examples 1-6, the description is abbreviate | omitted.

本実施例７においても前記実施例１〜６と同様の作用、効果を発揮することができる。 Also in the present Example 7, the effect | action and effect similar to the said Examples 1-6 can be exhibited.

［実施例８］
前記実施例１〜７においては、上曲げ行程を行った後に、下曲げ行程を行ったが、前記実施例１〜７における被加工部材１２の上下を反転するように配置し、下曲げ行程を行った後に、上曲げ行程を行うようにしてもよい。 [Example 8]
In Examples 1 to 7, the upper bending process was performed and then the lower bending process was performed, but the workpiece 12 in Examples 1 to 7 was disposed so as to be turned upside down, and the lower bending process was performed. After performing, an upper bending process may be performed.

その他の構造は、上記実施例１〜７と同様であるので、その説明を省略する。 Since the other structure is the same as that of the said Examples 1-7, the description is abbreviate | omitted.

本実施例８においても前記実施例１〜７と同様の作用、効果を発揮することができる。 Also in the present Example 8, the effect | action and effect similar to the said Examples 1-7 can be exhibited.

１熱交換器用フィン
４ａ，４ｂ傾斜面
８凹部
９凸部
１２被加工部材
１６，１７模様付け工程に用いる型
１８上曲げパンチ
１９下曲げパンチ
１８ａ，１９ａ成形面
２０，２１成形工程に用いる型 DESCRIPTION OF SYMBOLS 1 Heat exchanger fin 4a, 4b Inclined surface 8 Concave part 9 Convex part 12 Workpiece member 16, 17 Die | mold used for patterning process 18 Upper bending punch 19 Lower bending punch 18a, 19a Molding surface 20, 21 Die used for shaping | molding process

Claims

In the heat exchanger fin manufacturing method of manufacturing a heat exchanger fin by press forming a workpiece member made of a metal belt-shaped flat plate,
An upper bending step of bending the workpiece by the upper bending punch, and a lower bending step of bending the workpiece by the lower bending punch,
Each of the upper bending punch and the lower bending punch has a forming surface inclined with respect to the relative movement direction of the upper bending punch and the lower bending punch, and the inclined surface is formed on the workpiece by the inclined forming surface. ,
It has the patterning process which forms a plurality of crevice or / and a plurality of convex parts by press molding in the part of the processed member used as this inclined surface, and it is the above to the part of the processed member in which the above-mentioned patterning process was performed. Perform the upper bending process and the lower bending process,
Convex portions or / and concave portions corresponding to the concave portions or / and convex portions formed in the patterning step are formed on the inclined molding surfaces in the upper bending punch and the lower bending punch,
The bottom part of the concave part or / and the top part of the convex part of the molding surface of the upper bending punch and the lower bending punch are parallel to the relative movement direction of the upper bending punch and the lower bending punch or inclined toward the inclined surface side. Formed to
When forming the inclined surface, the convex portions or / and concave portions of the molding surfaces of the upper bending punch and the lower bending punch are in contact with the concave portions or / and convex portions formed in the patterning step. The manufacturing method of the fin for heat exchangers characterized by these.

In the manufacturing method of the fin for heat exchangers manufactured by repeating the process of 1 cycle a predetermined number of times,
The process of one cycle is
After moving the workpiece by a predetermined amount downstream,
After performing the upper bending process or the lower bending process on the concave part or / and the convex part formed in the process of the previous cycle,
Performed under bending stroke or upper bending stroke the heat exchanger according to claim 1, characterized in that the texturing process at a predetermined position on the upstream side than the portion subjected to the lower bending stroke or upper bending stroke Fin manufacturing method.

The method for manufacturing a fin for a heat exchanger according to claim 1 or 2, further comprising a molding step of press-molding the inclined surface formed by the upper bending process and the lower bending process again.

The process of one cycle is
After moving the workpiece by a predetermined amount downstream,
After press forming the inclined surface formed in the previous cycle process again,
After performing the upper bending process or the lower bending process on the concave part or / and the convex part formed in the process of the previous cycle,
4. The heat exchanger according to claim 3, wherein the lower bending step or the upper bending step is performed, and a patterning step is performed at a predetermined position upstream of the portion where the lower bending step or the upper bending step is performed. Fin manufacturing method.

5. The method of manufacturing a fin for a heat exchanger according to claim 2, wherein the lower bending process or the upper bending process and the patterning process are performed simultaneously.