JPH0470112B2 - - Google Patents

Info

Publication number
JPH0470112B2
JPH0470112B2 JP60064791A JP6479185A JPH0470112B2 JP H0470112 B2 JPH0470112 B2 JP H0470112B2 JP 60064791 A JP60064791 A JP 60064791A JP 6479185 A JP6479185 A JP 6479185A JP H0470112 B2 JPH0470112 B2 JP H0470112B2
Authority
JP
Japan
Prior art keywords
soldering
solder
conveyor
wiring board
automatic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP60064791A
Other languages
Japanese (ja)
Other versions
JPS61222674A (en
Inventor
Kyoshi Suzuki
Teruo Okano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tamura Corp
Original Assignee
Tamura Corp
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 Tamura Corp filed Critical Tamura Corp
Priority to JP6479185A priority Critical patent/JPS61222674A/en
Publication of JPS61222674A publication Critical patent/JPS61222674A/en
Publication of JPH0470112B2 publication Critical patent/JPH0470112B2/ja
Granted legal-status Critical Current

Links

Description

【発明の詳細な説明】 〔発明の目的〕 (産業上の利用分野) 本発明は、自動はんだ付け方法に関するもので
ある。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to an automatic soldering method.

(従来の技術) 一般的に、第1図に示す自動はんだ付け装置に
おいて、搬送コンベヤ1によりはんだ付け物2を
搬送しながら、このはんだ付け物2に対し、フラ
クサ3によるフラツクス付け、プリヒータ4によ
るプリヒート(予加熱)、はんだ槽5によるはん
だ付け、冷却フアン6による冷却の各工程を行な
つている。
(Prior art) Generally, in the automatic soldering apparatus shown in FIG. The steps of preheating, soldering using the solder bath 5, and cooling using the cooling fan 6 are performed.

そして、従来は、少なくとも各工程の中では上
記搬送コンベヤ1のスピードを一定に制御し、は
んだ付け物2を同一の速度で搬送している。
Conventionally, the speed of the conveyor 1 is controlled to be constant at least in each process, and the soldering objects 2 are conveyed at the same speed.

(発明が解決しようとする問題点) しかし、はんだ付け工程において、一定の速度
ではんだ付け物2を搬送する場合は、このはんだ
付け物2の後端部からのはんだ切れがスムーズに
行なわれにくい溶解はんだの特質が顕著に現れ、
はんだ付け物2の後端部での「はんだのもり」が
多くなりやすい欠点がある。これにより、はんだ
付けにおける「ブリツジ」、「つらら」等の好まし
くない現象が発生しやすい。
(Problem to be solved by the invention) However, in the soldering process, when the soldering object 2 is conveyed at a constant speed, it is difficult to cut the solder smoothly from the rear end of the soldering object 2. The characteristics of molten solder are clearly visible,
There is a drawback that "solder paste" tends to increase at the rear end of the soldering object 2. This tends to cause undesirable phenomena such as "bridging" and "icicles" during soldering.

本発明の目的は、はんだ付け物の搬送速度をは
んだ付け工程の途中で減速制御することにより、
はんだ付け特性に影響するはんだ切れの向上を図
ることにある。
An object of the present invention is to reduce and control the conveyance speed of soldering objects in the middle of the soldering process.
The purpose is to improve solder breakage, which affects soldering characteristics.

〔発明の構成〕[Structure of the invention]

(問題点を解決するための手段) 本発明は、はんだ付け物2aを搬送しながら、
フラツクス付け、プリヒート、はんだ付け、冷却
の各工程B,C,D,Eを順次行なう自動はんだ
付け方法において、はんだ付け工程Dにて、溶解
はんだ10からはんだ付け物2aが離脱する直前
に、はんだ付け物2aの搬送速度を減速制御する
ものである。
(Means for Solving the Problems) The present invention provides the following features: While conveying the soldering object 2a,
In an automatic soldering method in which steps B, C, D, and E of fluxing, preheating, soldering, and cooling are sequentially performed, in soldering step D, just before the soldering object 2a separates from the molten solder 10, the soldering This is to control the speed at which the attachment 2a is conveyed.

(作用) 本発明は、溶解はんだ10からはんだ付け物2
aを緩やかに離脱させることにより、はんだ付け
物2aからのはんだ切れがスムーズに行われ、良
好なはんだ付け性が得られる。
(Function) The present invention provides soldering material 2 from melted solder 10.
By gently separating a, the solder can be smoothly cut from the soldering object 2a, and good soldering properties can be obtained.

(実施例) 以下、本発明の一実施例を第1図および第2図
を参照して詳細に説明する。
(Example) Hereinafter, an example of the present invention will be described in detail with reference to FIGS. 1 and 2.

自動はんだ付け装置の全長にわたつて搬送コン
ベヤ1を設ける。この搬送コンベヤ1は、1対の
エンドレスチエンにより、はんだ付け物を直接挟
持してまたはホルダを介し保持して搬送するもの
で、この搬送コンベヤ1のエンドレスチエンを巻
掛けてなる両端のスプロケツトの一方の駆動軸に
可変速制御可能の電動モータを接続する。
A conveyor 1 is provided along the entire length of the automatic soldering device. This conveyor 1 conveys soldering items by directly holding them or holding them through a holder using a pair of endless chains, and one of the sprockets at both ends formed by winding the endless chains of this conveyor 1. A variable speed controllable electric motor is connected to the drive shaft.

この搬送コンベヤ1に沿つて、発泡式フラクサ
3、プリヒータ4、噴流式はんだ槽5および冷却
フアン6の各ユニツトを順次配列する。
Along this conveyor 1, each unit of a foaming type fluxer 3, a preheater 4, a jet type solder bath 5, and a cooling fan 6 are arranged in sequence.

そうして、ローデイング工程Aで上記搬送コン
ベヤ1にはんだ付け物2を装着し、このコンベヤ
1により1個のはんだ付け物2を搬送しながら、
このはんだ付け物2に対し、フラクサ3によるフ
ラツクス付け工程B、プリヒータ4によるプリヒ
ート(予加熱)工程C、はんだ槽5によるはんだ
付け工程D、冷却フアン6による冷却工程Eの各
工程を順次に行ない、アンローデイング工程Fで
上記コンベヤからはんだ付け物2を取出す。
Then, in the loading step A, the soldering object 2 is mounted on the conveyor 1, and while conveying one soldering object 2 by the conveyor 1,
This soldering object 2 is sequentially subjected to a fluxing process B using a fluxer 3, a preheating process C using a preheater 4, a soldering process D using a solder bath 5, and a cooling process E using a cooling fan 6. In the unloading step F, the soldering object 2 is taken out from the conveyor.

前記はんだ付け工程Dでは、第2図に示すよう
にノズル9より噴流した溶解はんだ10から、は
んだ付け物としてのプリント配線基板2aおよび
搭載部品2bが離脱する直前に、その状態のプリ
ント配線基板2aを所定位置に設けた光電スイツ
チ8で検出することにより、前記コンベヤの駆動
モータに減速指令を与えて、プリント配線基板2
aの搬送速度を減速制御する。
In the soldering process D, as shown in FIG. 2, immediately before the printed wiring board 2a and the mounted components 2b as soldering objects are separated from the molten solder 10 jetted from the nozzle 9, the printed wiring board 2a in that state is removed. By detecting this with a photoelectric switch 8 provided at a predetermined position, a deceleration command is given to the drive motor of the conveyor, and the printed wiring board 2
The conveyance speed of a is controlled to be decelerated.

このように減速制御することなく一定の速度で
プリント配線基板2aを搬送する場合は、プリン
ト配線基板2aの後端部からのはんだ切れがスム
ーズに行なわれにくい溶解はんだの特質が顕著に
現れ、プリント配線基板2aの後端部での「はん
だのもり」が多くなりやすい欠点があるが、上記
離脱直前の減速制御により、上記はんだ切れが比
較的スムーズになされ、上記「はんだのもり」が
過剰にならない。
When the printed wiring board 2a is transported at a constant speed without deceleration control in this way, the characteristics of the molten solder that makes it difficult to cut the solder smoothly from the rear end of the printed wiring board 2a become apparent, and the printed wiring board 2a is Although there is a drawback that "solder paste" tends to increase at the rear end of the wiring board 2a, the deceleration control just before detachment allows the solder to break relatively smoothly and prevents the "solder paste" from forming excessively. It won't happen.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、溶解はんだからはんだ付け物
が離脱する直前に、はんだ付け物の搬送速度を減
速制御することにより、その離脱部でのはんだ切
れが比較的スムーズに行われ、はんだ付け物の後
端部での「はんだのもり」が過剰にならない効果
がある。これにより、はんだ付けにおける「ブリ
ツジ」、「つらら」等の発生を抑えることができ
る。
According to the present invention, by controlling the conveyance speed of the soldering object to slow down immediately before the soldering object separates from the molten solder, the solder can be cut relatively smoothly at the detached portion, and the soldering object can be cut off relatively smoothly. This has the effect of preventing excessive "solder buildup" at the rear end. This makes it possible to suppress the occurrence of "bridges", "icicles", etc. during soldering.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来方法および本発明方法の両方で使
用される自動はんだ付け装置の概略図、第2図は
本発明のはんだ付け方法に係るはんだ槽の断面図
である。 1……搬送コンベヤ、2a……はんだ付け物と
してのプリント配線基板、10……溶解はんだ、
B……フラツクス付け工程、C……プリヒート工
程、D……はんだ付け工程、E……冷却工程。
FIG. 1 is a schematic diagram of an automatic soldering apparatus used in both the conventional method and the method of the present invention, and FIG. 2 is a sectional view of a solder bath according to the soldering method of the present invention. 1... Transfer conveyor, 2a... Printed wiring board as a soldering object, 10... Melted solder,
B...Fluxing process, C...Preheating process, D...Soldering process, E...Cooling process.

Claims (1)

【特許請求の範囲】 1 はんだ付け物を搬送しながら、フラツクス付
け、プリヒート、はんだ付け、冷却の各工程を順
次行なう自動はんだ付け方法において、 はんだ付け工程にて、溶解はんだからはんだ付
け物が離脱する直前に、はんだ付け物の搬送速度
を減速制御することを特徴とする自動はんだ付け
方法。
[Scope of Claims] 1. In an automatic soldering method in which the steps of fluxing, preheating, soldering, and cooling are sequentially performed while conveying the soldering object, the soldering object detaches from the molten solder during the soldering process. An automatic soldering method characterized by slowing down the conveyance speed of soldering materials immediately before soldering.
JP6479185A 1985-03-28 1985-03-28 Automatic soldering method Granted JPS61222674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6479185A JPS61222674A (en) 1985-03-28 1985-03-28 Automatic soldering method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6479185A JPS61222674A (en) 1985-03-28 1985-03-28 Automatic soldering method

Publications (2)

Publication Number Publication Date
JPS61222674A JPS61222674A (en) 1986-10-03
JPH0470112B2 true JPH0470112B2 (en) 1992-11-10

Family

ID=13268408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6479185A Granted JPS61222674A (en) 1985-03-28 1985-03-28 Automatic soldering method

Country Status (1)

Country Link
JP (1) JPS61222674A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016366C2 (en) * 1990-05-21 1994-04-28 Siemens Nixdorf Inf Syst Method and device for reflow soldering of electronic components on a printed circuit board
JP2528754B2 (en) * 1991-05-13 1996-08-28 関東冶金工業株式会社 Brazing method with continuous furnace

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5329140A (en) * 1976-08-31 1978-03-18 Olympus Optical Co Ltd Electrophotographic device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5329140A (en) * 1976-08-31 1978-03-18 Olympus Optical Co Ltd Electrophotographic device

Also Published As

Publication number Publication date
JPS61222674A (en) 1986-10-03

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