JPH03124337A - Manufacture of tube for heat exchanger - Google Patents
Manufacture of tube for heat exchangerInfo
- Publication number
- JPH03124337A JPH03124337A JP1259631A JP25963189A JPH03124337A JP H03124337 A JPH03124337 A JP H03124337A JP 1259631 A JP1259631 A JP 1259631A JP 25963189 A JP25963189 A JP 25963189A JP H03124337 A JPH03124337 A JP H03124337A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- groove
- tube member
- tube material
- section
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 abstract description 20
- 239000000463 material Substances 0.000 abstract description 8
- 238000007493 shaping process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000861 blow drying Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/151—Making tubes with multiple passages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/156—Making tubes with wall irregularities
- B21C37/157—Perforations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、内部に冷媒流路が形成された一連の帯状のチ
ューブ部材から所定長のチューブを得る熱交換器のチュ
ーブの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method of manufacturing tubes for a heat exchanger, in which a tube of a predetermined length is obtained from a series of band-shaped tube members each having a refrigerant flow path formed therein.
（従来の技術）
一般に、パラレルフロータイブ等の熱交換器のチューブ
は、内部に単一又は複数の冷媒流路を備え押出成形によ
り形成される。この押出し成形により形成された一連の
チューブは、ドラムに巻きつけられ、ドラムから繰り出
されるチューブを切断部により所定長さに切断される。(Prior Art) Generally, a tube of a heat exchanger such as a parallel flow type is formed by extrusion molding and has a single or plural refrigerant flow passages inside. A series of tubes formed by this extrusion molding are wound around a drum, and the tubes fed out from the drum are cut into a predetermined length by a cutting section.
尚、切断の前後の工程でチューブの縦横の寸法の整形が
行われる。Note that the vertical and horizontal dimensions of the tube are shaped in the steps before and after cutting.
また、従来において、所定長さのチューブに切断するに
は、■メタルソーカット、■プレスカット、■レーザー
カット、■ローラに取付けた刃を回転して溝を付け、そ
の後切断溝を開く方向に張力を作用させてカットする（
例えば、特開昭６３−２６４２１８号）方法が採用され
ている。In addition, in the past, in order to cut a tube of a predetermined length, there were three methods: ■Metal saw cut, ■Press cut, ■Laser cut, ■Rotate a blade attached to a roller to create a groove, and then apply tension in the direction of opening the cutting groove. Cut by applying (
For example, a method (Japanese Patent Laid-Open No. 63-264218) has been adopted.
（発明が解決しようとする課題）
ところが、上記■は、メタルソーの切削加工によってチ
ューブを切断していることにより、切粒等の切屑が生成
されてチューブに付着１ノたり、チューブの切断面にパ
リが生じて開口部が部分的にふさがれたりするので、切
屑除去やパリ取りの工程が必要となり、工程数が増加し
、コスト高を招くという不都合があった。(Problem to be Solved by the Invention) However, as for the above problem (■), when the tube is cut by cutting with a metal saw, chips such as chips are generated and adhere to the tube, and the cut surface of the tube is coated with chips. Since the opening may be partially blocked by the formation of burr, a process of removing chips and removing burr is required, which is disadvantageous in that the number of steps increases and the cost increases.
また上記■は、プレスカットの刃によってチューブ部材
を断ち切っていることにより、切断面の開口形状がゆが
んだり又はつぶれて変形する上、パリも生じ易いので、
パリ取りしたり開口を拡管する工程が必要となり、コス
トが増加する不都合が生じた。In addition, as for the above item (■), since the tube member is cut by the press cut blade, the opening shape of the cut surface is distorted or crushed and deformed, and it is also easy to cause cracks.
A process of deburring and expanding the opening was required, resulting in an inconvenience of increased costs.
また上記■は、レーザーの熱的溶解によって部材を切断
していることにより、部材の一部が溶着物となってチュ
ーブに付着してしまうので、その除去工程が必要となり
、コスト増となる不都合があった。In addition, as for the above item (■), since parts are cut by thermal melting with a laser, some parts of the parts become welds and adhere to the tube, which requires a process to remove, which increases costs. was there.
また更に、上記■は、ローラに取付けた刃を回転させる
ことによりチューブに溝をつけるので、偏平チューブ切
断に用いる場合には、溝をつける際に刃がチューブ内に
めり込み、プレスカッタの場合と同様にパリが生じ、こ
れにより通路が半ば閉塞されるおそれがある。また、切
断の際には、チューブの移送方向にローラにより張力を
作用させて溝部分で引き裂くので、溝形成部と反対側の
チューブ端面部分では、伸びながら引きちぎられること
になり、これに伴なって、開口端面が平らにならず、端
面を整える工程が必要となり、この場合でもコストが増
大する不都合があった。Furthermore, since the above method (■) creates a groove in the tube by rotating a blade attached to a roller, when used for cutting flat tubes, the blade sinks into the tube when creating the groove, unlike in the case of a press cutter. Similarly, cracks can occur, which can partially block the passage. In addition, when cutting, tension is applied by rollers in the transport direction of the tube to tear it at the groove, so the end of the tube on the opposite side of the groove forming part stretches and is torn off. Therefore, the opening end face is not flat, and a step of preparing the end face is required, which also causes an inconvenience in that the cost increases.
そこで、本発明では、切屑、パリ、溶着物の除去、開口
の拡管、端面を整える工程を削除でき、製造コストの低
減を図ることを可能としたチューブの製造方法を提供す
ることを目的としている。Therefore, an object of the present invention is to provide a tube manufacturing method that can eliminate the steps of removing chips, debris, and welded materials, expanding the opening, and preparing the end face, thereby reducing manufacturing costs. .
（課題の解決手段及びその作用）
本発明の熱交換器のチューブの製造方法は、押出し成形
により内部に冷媒流路が形成され、連続的に送給される
帯状のチューブ部材から、所定長のチューブを得る熱交
換器のチューブの製造方法であって、周縁に切刃が形成
され、回転自在に枢支されたディスクカッタで、前記チ
ューブ部材の上下壁を横切ることにより、チューブ部材
の双方の壁部に溝を形成し、その後、前記チューブ部材
の溝上流側を固定する一方、この溝を基点として溝下流
側を揺動させることにより、チューブ部材を溝部分で破
断させ、チューブ単体を得る構成とされている。(Means for Solving the Problems and Their Effects) The method for manufacturing a tube for a heat exchanger of the present invention involves forming a refrigerant flow path inside by extrusion molding, and forming a tube of a predetermined length from a band-shaped tube member that is continuously fed. A method of manufacturing a tube for a heat exchanger to obtain a tube, the method comprising cutting both sides of a tube member by cutting across the upper and lower walls of the tube member using a rotatably supported disk cutter having a cutting edge formed on the periphery. A groove is formed in the wall portion, and then, while the upstream side of the groove of the tube member is fixed, the downstream side of the groove is swung from the groove as a reference point, thereby breaking the tube member at the groove portion to obtain a single tube. It is said to be composed of
したがって、ディスクカッタが自から回転しながら横切
ることにより、チューブ部材の上下壁に溝が形成される
。その後、溝の上流側のチューブ部材が固定され、溝を
基点として溝の下流側のチューブ部材を揺動させること
により、溝に沿って部材が破断され、所定長のチューブ
が分離して得られる。Therefore, grooves are formed in the upper and lower walls of the tube member by the disk cutter rotating and crossing the tube member. Thereafter, the tube member on the upstream side of the groove is fixed, and by swinging the tube member on the downstream side of the groove using the groove as a reference point, the member is broken along the groove, and a tube of a predetermined length is obtained by separating the tube member. .
（実施例） 以下に、本発明の一実施例を図面に基き説明する。(Example) An embodiment of the present invention will be described below based on the drawings.
まず、熱交換器のチューブの製造方法を実施する製造装
置について説明する。First, a manufacturing apparatus that implements a method for manufacturing tubes of a heat exchanger will be described.
チューブの製造装置１は、第１図に示すように、チュー
ブ部材供給部２と整形部３とチューブ分離部４とから構
成され、これらは、床面５上に直線状に順次並設されて
いる。すなわち、内部に冷媒流路を備え押出し成形によ
り形成された一連のチューブ部材が、上記供給部２から
一方向に連続的に送給され、この供給方向に沿って、整
形部３、分離部４が順次設置されている。また本実施例
のチューブ部材６は、第２図に示すように、横断面形状
が略楕円形状に形成され、隔壁により多数の冷媒流路が
内部に形成されている。尚、第２図中、Ａがチューブの
巾寸法であり、Ｂが高さ寸法である。As shown in FIG. 1, the tube manufacturing apparatus 1 is comprised of a tube member supply section 2, a shaping section 3, and a tube separation section 4, which are linearly arranged side by side on a floor surface 5. There is. That is, a series of tube members each having a refrigerant flow path therein and formed by extrusion molding are continuously fed in one direction from the above-mentioned supply section 2, and along this supply direction, the forming section 3, the separating section 4 are being installed sequentially. Further, as shown in FIG. 2, the tube member 6 of this embodiment has a substantially elliptical cross-sectional shape, and a large number of refrigerant flow paths are formed inside by partition walls. In addition, in FIG. 2, A is the width dimension of the tube, and B is the height dimension.
上記供給部２は、上記チューブ部材６が巻きつけられた
円筒状のドラム７とドラム保持部材８とにより構成され
、この保持部材８により回転可能に軸支されている。The supply section 2 includes a cylindrical drum 7 around which the tube member 6 is wound and a drum holding member 8, and is rotatably supported by the holding member 8.
また供給部２の下流側には、整形部３が設置されている
。整形部３は縦矯正部９と横矯正部１０とから構成され
、これらはチューブ部材６の左右、又は上下を挟むよう
に配設された複数組のローラ１１・・・又は１２・・・
により構成されている。Further, on the downstream side of the supply section 2, a shaping section 3 is installed. The shaping section 3 is composed of a vertical straightening section 9 and a horizontal straightening section 10, which are formed by a plurality of sets of rollers 11... or 12... disposed to sandwich the left and right sides or the top and bottom of the tube member 6.
It is made up of.
そして、縦矯正部９においてはチューブ部材６の巾Ａが
所定の寸法となるように整えられ、次いで横矯正部１０
においてはチューブ部材６の高さＢが所定の寸法となる
ように整えられるとともにチューブ部材がドラムに巻き
付けられていたことによる巻きぐせやねじれ等が修整さ
れ、真直で横断面形状が所定の寸法のチューブ部材に整
形される。尚、本実施例では縦矯正部の下流側に横矯正
部を設置しているが、これらが逆に設けられてもよく、
また、後述する分離部４の後にこれら双方を配設しても
よい。Then, in the vertical correction section 9, the width A of the tube member 6 is adjusted to a predetermined dimension, and then the horizontal correction section 10
In the process, the height B of the tube member 6 is adjusted to the predetermined size, and the curls and twists caused by the tube member being wound around the drum are corrected, so that the tube member 6 is straight and has a cross-sectional shape of the predetermined size. It is shaped into a tube member. In this embodiment, the horizontal correction section is installed downstream of the vertical correction section, but these may be installed in the opposite direction.
Further, both of these may be provided after the separating section 4, which will be described later.
さらに、上記整形部３の下流側には、分離部４が配設さ
れ、分離部４は溝形成部１３と破断部１４により構成さ
れている。Furthermore, a separating section 4 is provided downstream of the shaping section 3, and the separating section 4 is composed of a groove forming section 13 and a breaking section 14.
上記溝形成部１３は、チューブ部材６に溝１５なつける
ディスクカッタ１６ａ、１６ｂとこのディスクカッタ１
６ａ、１６ｂを支持するディスクカッタ保持部１７とに
より構成されている。上記ディスクカッタ１６ａ、１６
ｂは、実施例の場合第２図に示すように、二枚−組の円
板からなり、各円板の周縁部が切刃に形成されている。The groove forming section 13 includes disc cutters 16a and 16b that form the groove 15 in the tube member 6, and the disc cutter 1.
6a and 16b. The disc cutter 16a, 16
In the case of the embodiment, as shown in FIG. 2, b consists of a set of two discs, and the peripheral edge of each disc is formed into a cutting edge.
双方のディスクカッタ１６ａと１６ｂとは同一形状に形
成され、双方の切刃１８ａと１８ｂとが同一平面上で回
転されるように支軸を介して、保持部１７にそれぞれ支
持されている。各ディスクカッタ１７ａ、１７ｂは支軸
に遊貫され、自在に回転できるようになっている。また
、互いに対向する切刃間の寸法Ｔはチューブの高さＢや
肉厚Ｃに対応して調節することができ、本実施例では、
第２図に示すように、チューブ部材６の上下壁の肉厚Ｂ
をそれぞれ押し裂くことができるよう、略Ｔ＝Ｂ−２Ｃ
の寸法に設定されている。尚、切刃間寸法ＴとしてはＤ
＜Ｔ＜Ｂに設定するとよい。上記保持部１７は、床面５
に対して平行に、且つ、チューブの送給方向に対して直
交する方向に往復移動可能に設けられている。Both disc cutters 16a and 16b are formed in the same shape, and are each supported by the holding part 17 via a support shaft so that both cutting blades 18a and 18b can be rotated on the same plane. Each of the disc cutters 17a, 17b is loosely inserted into a support shaft and can freely rotate. In addition, the dimension T between the mutually opposing cutting edges can be adjusted according to the height B and wall thickness C of the tube, and in this example,
As shown in FIG. 2, the thickness B of the upper and lower walls of the tube member 6
Approximately T=B-2C so that each can be torn apart.
The dimensions are set to . In addition, the dimension T between the cutting edges is D
It is preferable to set <T<B. The holding part 17 is attached to the floor surface 5
It is provided so as to be able to reciprocate in a direction parallel to the tube and perpendicular to the feeding direction of the tube.
そして、チューブを切断する所定長の位置で、図示しな
い駆動装置によって、保持部１７をチューブ移送方向と
直交する方向に移動することにより、双方のディスクカ
ッタ１６ａ、１６ｂがチューブ部材６を挟んだ状態で自
在に回転しながら、チューブ部材６を横切り、これに伴
って所定深さの溝１５を第３図に示すようにチューブ部
材６の上下壁に形成することができる。Then, at a predetermined length position where the tube is to be cut, a driving device (not shown) moves the holding part 17 in a direction perpendicular to the tube transport direction, so that both disc cutters 16a and 16b sandwich the tube member 6. While freely rotating, it traverses the tube member 6, thereby forming grooves 15 of a predetermined depth in the upper and lower walls of the tube member 6, as shown in FIG.
上記破断部１６は、固定部２０と揺動部２１とにより構
成されている。上記固定部２０は、チューブ部材６の上
下壁を把持するクランプ部材２２ａ、２２ｂにより構成
され、チューブ部材に形成された溝１９の上流側の上下
壁を挟んで固定する。揺動部２１は、上記固定部２０の
下流側に設置され、溝より下流側のチューブ部材６の上
下壁を把持するクランプ部材２３ａ、２３ｂと、これら
のクランプ部材２３ａ、２３ｂを溝１５を中心に円弧を
描くように揺動する駆動部（図示省略）とにより構成さ
れている。そして、この破断部１６においては、第４図
に示すように固定部２０により溝の上流側のチューブ部
材６を挟んで固定し、溝の下流側のチューブ部材６を揺
動部２１のクランプ部材２３ａ、２３ｂにより挟み、第
４図中の矢印で示すように溝１５を中心にクランプ部材
２３ａ、２３ｂを一方向か、又は−往復移動させる。The breaking portion 16 is composed of a fixed portion 20 and a swinging portion 21. The fixing part 20 is composed of clamp members 22a and 22b that grip the upper and lower walls of the tube member 6, and is fixed by sandwiching the upper and lower walls on the upstream side of the groove 19 formed in the tube member. The swinging section 21 includes clamp members 23a and 23b that are installed downstream of the fixing section 20 and that grip the upper and lower walls of the tube member 6 on the downstream side of the groove. and a drive section (not shown) that swings in a circular arc. At this broken part 16, the tube member 6 on the upstream side of the groove is sandwiched and fixed by the fixing part 20, as shown in FIG. 23a and 23b, and the clamp members 23a and 23b are moved in one direction or back and forth around the groove 15 as shown by the arrows in FIG.
このようなチューブの製造装置においては、ドラム７に
巻かれた一連のチューブ部材６が供給部２から連続的に
送給され、縦矯正部９のローラ１１と横矯正部１０のロ
ーラ１２を通過する際に、巻きぐせ等が修正され真直に
整えられるとともに、所定の横断面寸法に整形される。In such a tube manufacturing apparatus, a series of tube members 6 wound around a drum 7 are continuously fed from a supply section 2, and pass through rollers 11 of a vertical straightening section 9 and rollers 12 of a horizontal straightening section 10. During this process, curls and the like are corrected and straightened, and the cross-sectional dimensions are shaped to a predetermined size.
次に、チューブ部材６は分離部４に至り、回部の溝形成
部１３において、チューブ部材６の切断位置で二枚−組
のディスクカッタ１６ａ、１６ｂが、チューブ部材６を
上下から挟みながらチューブ部材６の送給方向と直交す
る方向に移動する。Next, the tube member 6 reaches the separating section 4, and in the groove forming section 13 of the turning section, a set of two disc cutters 16a and 16b cut the tube member 6 from above and below at the cutting position of the tube member 6. It moves in a direction perpendicular to the feeding direction of the member 6.
この際、双方の切刃間の寸法がチューブ高さＢよりも狭
い寸法に設定され、且つ、各ディスク１６ａ、１６ｂが
支軸に回転自在に支承されているので、双方のディスク
はその切刃１８ａ、１８ｂがチューブ部材６の土壁と下
壁とにくい込むとともに、自から回転しながら横切り、
これによりチューブ部材６の上下壁に溝１φが形成され
る。At this time, since the dimension between both cutting edges is set to be narrower than the tube height B, and each disk 16a, 16b is rotatably supported on the spindle, both disks 18a and 18b are embedded in the earthen wall and the lower wall of the tube member 6, and rotated from themselves to cross the tube member 6.
As a result, grooves 1φ are formed in the upper and lower walls of the tube member 6.
この場合の溝１５の深さは最大限、チューブ部材６の上
下壁の厚さＣ以内にとどまるように設定されている。し
たがって、ディスクカッタがくい込み、且つ、自から回
転しながら移動されるため、従来とは異なり切り裂くよ
うに、溝が形成されるので、切り屑やパリ等が発生せず
、これらを除去したり開口を拡管する工程が不要となる
。In this case, the depth of the groove 15 is set so as to stay within the thickness C of the upper and lower walls of the tube member 6 at the maximum. Therefore, since the disc cutter is driven in and rotated by itself, grooves are formed as if it were cutting, unlike conventional methods, so chips and debris are not generated, and these can be removed or opened. The process of expanding the tube becomes unnecessary.
次に溝１５が形成されたチューブ部材６は、破断部１４
まで移送されると、チューブ部材６の溝１５の上流側近
傍を固定部２０のクランプ部材２２ａ、２２ｂにより把
持して固定し、下流側を揺動部２１のクランプ部材２３
ａ、２３ｂにより把持するとともに、揺動部２１のクラ
ンプ部材２３ａ、２３ｂが溝１５を中心に円弧状に、例
えば−往復だけ揺動する。これにより、チューブ部材６
が溝１５部分で破断され、所定長のチューブ単体が分離
して得られる。この場合、チューブ部材１６の路上下壁
の厚さ全域に亘って予め溝が形成されているので、容易
に破断することができ、破断部分の流路開口が閉塞され
ることがなく、整然とした開口のチューブが得られる。Next, the tube member 6 with the groove 15 formed therein is cut into the broken part 14.
When the tube member 6 is transferred upstream, the vicinity of the upstream side of the groove 15 is gripped and fixed by the clamp members 22a and 22b of the fixed part 20, and the downstream side is gripped and fixed by the clamp members 23 of the swinging part 21.
a, 23b, and the clamp members 23a, 23b of the swinging portion 21 swing in an arc around the groove 15, for example, by -reciprocation. As a result, the tube member 6
is broken at the groove 15, and a single tube of a predetermined length is obtained. In this case, since the groove is pre-formed over the entire thickness of the lower wall of the tube member 16, it can be easily broken, and the flow passage opening at the broken part is not blocked, so that it can be cut in an orderly manner. An open tube is obtained.
そして、切断されたチューブは洗浄、ブロー乾燥等の工
程を経た後、組付は工程で組付け、体ろう付げにより熱
交換器が製作される。このように、チューブ単体の開口
や端面を整える各種の工程を省くことが可能となるので
、製造コストの低下が図れ、経済性が向上する。Then, the cut tubes go through processes such as washing and blow drying, and then are assembled in a process to produce a heat exchanger by body brazing. In this way, it is possible to omit various processes for preparing the opening and end face of the tube itself, thereby reducing manufacturing costs and improving economic efficiency.
実施例では、ディスクカッタ１６ａ、１６ｂを二枚１組
として用いたが、本発明はこれに限られずに、ディスク
カッタを複数組用いて、例えば寸法Ｔを徐々に小さく形
成するようにしたり、また、ディスクカッタをいわゆる
千鳥状に配置する等、適宜の手段を採ることができるも
のである。In the embodiment, the disc cutters 16a and 16b are used as a pair of disc cutters, but the present invention is not limited to this. , appropriate means can be taken, such as arranging the disc cutters in a so-called zigzag pattern.
（発明の効果）
以上説明したように、本発明によれば、チューブ部材に
溝を付ける際に、ディスクカッタが自から回転しながら
チューブ部材の外壁にめり込んで横切るので、プレス切
断のようにパリが発生することもなく、また、メタルン
ーのように切屑が発生しない。チューブ単体を得る際に
は、形成した１
溝の下流側チューブ部材が、溝を基点として揺動され、
溝に沿って破断させることによりチューブ単体を分離す
るので、開口形状も損われることがない。これらにより
得られるチューブ単体の開口及び端面が整然としたもの
となるので、従来の如く溶着物の除去、開口の拡管、端
面な整える等の複雑な工程を省くことが可能となり、製
造工程の簡素化が図られ、コストの低減を図ることがで
きる。(Effects of the Invention) As explained above, according to the present invention, when cutting a groove in a tube member, the disc cutter rotates from itself and sinks into the outer wall of the tube member and cuts across it, so it is similar to press cutting. There is no generation of chips, and no chips are generated as with metallurgy. When obtaining a single tube, the tube member on the downstream side of the formed one groove is swung with the groove as a reference point,
Since the tube is separated by breaking along the groove, the shape of the opening is not damaged. Since the opening and end face of the resulting tube become well-ordered, it becomes possible to omit the conventional complicated processes such as removing welded materials, expanding the opening, and adjusting the end face, simplifying the manufacturing process. This makes it possible to reduce costs.
第１図ないし第４図は、本発明を実施する熱交換器のチ
ューブの製造装置の一実施例に係り、第１図は製造装置
を示す側面図、第２図は製造装置の溝形成部を示す横断
面図、第３図はチューブ部材を示す側面図、第４図は製
造装置の揺動部を示す縦断面図である。
２
６・・・チューブ部材 １５・・・溝１６ａ、１６ｂ
・・・ディスクカッタ
１８ａ、１８ｂ−−・切刃
特開平３
１２４３３７ （５）1 to 4 relate to an embodiment of a heat exchanger tube manufacturing apparatus according to the present invention, FIG. 1 is a side view showing the manufacturing apparatus, and FIG. 2 is a groove forming section of the manufacturing apparatus. 3 is a side view showing the tube member, and FIG. 4 is a longitudinal sectional view showing the swinging part of the manufacturing apparatus. 2 6...Tube member 15...Groove 16a, 16b
... Disc cutter 18a, 18b --- Cutting blade JP-A-3 124337 (5)
Claims (1)
送給される帯状のチューブ部材から、所定長のチューブ
を得る熱交換器のチューブの製造方法において、 周縁に切刃が形成され、回転自在に枢支されたディスク
カッタで、前記チューブ部材の上下壁を横切ることによ
り、チューブ部材の双方の壁部に溝を形成し、 その後、前記チューブ部材の溝上流側を固定する一方、
この溝を基点として溝下流側を揺動させることにより、
チューブ部材を溝部分で破断させ、チューブ単体を得る
ことを特徴とする熱交換器のチューブの製造方法。[Claims] A method of manufacturing a tube for a heat exchanger in which a tube of a predetermined length is obtained from a band-shaped tube member in which a refrigerant flow path is formed inside by extrusion molding and is continuously fed. A disc cutter having a rotatable blade is cut across the upper and lower walls of the tube member to form grooves in both walls of the tube member, and then the upstream side of the groove is cut across the upper and lower walls of the tube member. While fixed,
By swinging the downstream side of the groove from this groove,
A method for manufacturing a tube for a heat exchanger, which comprises breaking a tube member at a groove portion to obtain a single tube.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259631A JPH03124337A (en) | 1989-10-04 | 1989-10-04 | Manufacture of tube for heat exchanger |
| US08/035,239 US5407116A (en) | 1989-10-04 | 1993-03-23 | Method and apparatus for cutting flat tubes |
| US08/350,991 US5495972A (en) | 1989-10-04 | 1994-11-29 | Method and apparatus for cutting flat tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259631A JPH03124337A (en) | 1989-10-04 | 1989-10-04 | Manufacture of tube for heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03124337A true JPH03124337A (en) | 1991-05-27 |
| JPH0356808B2 JPH0356808B2 (en) | 1991-08-29 |
Family
ID=17336756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1259631A Granted JPH03124337A (en) | 1989-10-04 | 1989-10-04 | Manufacture of tube for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03124337A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0688622A1 (en) * | 1994-06-20 | 1995-12-27 | Modine Manufacturing Company | Method and apparatus for cutting tube |
| US5816127A (en) * | 1992-09-07 | 1998-10-06 | Showa Aluminum Corporation | Continuous cutter for severing pieces of equal length from a coiled elongate article |
| WO2005058539A1 (en) * | 2003-12-19 | 2005-06-30 | Valeo Thermal Systems Japan Corporation | Tube producing method, heat exchanging tube produced by the method, and heat exchanger using the tube |
| US7086153B2 (en) | 2003-04-03 | 2006-08-08 | Denso Corporation | Method and apparatus for manufacturing heat exchanger tube |
| US7284325B2 (en) | 2003-06-10 | 2007-10-23 | Petur Thors | Retractable finning tool and method of using |
| JP2010125585A (en) * | 2008-12-01 | 2010-06-10 | Showa Denko Kk | Pipe cutter and method for cutting pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58157522A (en) * | 1982-03-16 | 1983-09-19 | Nippon Light Metal Co Ltd | Zn coating method of flat aluminum tube |
| JPS5971083U (en) * | 1982-10-27 | 1984-05-14 | 昭和アルミニウム株式会社 | Heat exchanger tube |
| JPS62156071A (en) * | 1985-12-27 | 1987-07-11 | Mitsubishi Alum Co Ltd | Heat exchanger |
| JPS63111181A (en) * | 1986-10-29 | 1988-05-16 | Kobe Steel Ltd | Method for applying zinc on extruded aluminum stock |
| JPS6431571A (en) * | 1987-07-27 | 1989-02-01 | Furukawa Aluminium | Production of aluminum made heat exchanger |
| JPH01143764A (en) * | 1987-11-30 | 1989-06-06 | Mitsubishi Alum Co Ltd | Tubular body for aluminum made heat exchanger |
| JPH02198798A (en) * | 1989-01-30 | 1990-08-07 | Sanden Corp | Cutting method for flat pipe |
-
1989
- 1989-10-04 JP JP1259631A patent/JPH03124337A/en active Granted
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58157522A (en) * | 1982-03-16 | 1983-09-19 | Nippon Light Metal Co Ltd | Zn coating method of flat aluminum tube |
| JPS5971083U (en) * | 1982-10-27 | 1984-05-14 | 昭和アルミニウム株式会社 | Heat exchanger tube |
| JPS62156071A (en) * | 1985-12-27 | 1987-07-11 | Mitsubishi Alum Co Ltd | Heat exchanger |
| JPS63111181A (en) * | 1986-10-29 | 1988-05-16 | Kobe Steel Ltd | Method for applying zinc on extruded aluminum stock |
| JPS6431571A (en) * | 1987-07-27 | 1989-02-01 | Furukawa Aluminium | Production of aluminum made heat exchanger |
| JPH01143764A (en) * | 1987-11-30 | 1989-06-06 | Mitsubishi Alum Co Ltd | Tubular body for aluminum made heat exchanger |
| JPH02198798A (en) * | 1989-01-30 | 1990-08-07 | Sanden Corp | Cutting method for flat pipe |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5816127A (en) * | 1992-09-07 | 1998-10-06 | Showa Aluminum Corporation | Continuous cutter for severing pieces of equal length from a coiled elongate article |
| EP0688622A1 (en) * | 1994-06-20 | 1995-12-27 | Modine Manufacturing Company | Method and apparatus for cutting tube |
| US7086153B2 (en) | 2003-04-03 | 2006-08-08 | Denso Corporation | Method and apparatus for manufacturing heat exchanger tube |
| US7284325B2 (en) | 2003-06-10 | 2007-10-23 | Petur Thors | Retractable finning tool and method of using |
| WO2005058539A1 (en) * | 2003-12-19 | 2005-06-30 | Valeo Thermal Systems Japan Corporation | Tube producing method, heat exchanging tube produced by the method, and heat exchanger using the tube |
| JP2005177921A (en) * | 2003-12-19 | 2005-07-07 | Zexel Valeo Climate Control Corp | Tube manufacturing method, heat exchanging tube, and heat exchanger |
| JP2010125585A (en) * | 2008-12-01 | 2010-06-10 | Showa Denko Kk | Pipe cutter and method for cutting pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0356808B2 (en) | 1991-08-29 |
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