CN102380680A - Various on-line circuit board brazing furnaces with energy-saving and nitrogen-saving device - Google Patents
Various on-line circuit board brazing furnaces with energy-saving and nitrogen-saving device Download PDFInfo
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- CN102380680A CN102380680A CN2011102856253A CN201110285625A CN102380680A CN 102380680 A CN102380680 A CN 102380680A CN 2011102856253 A CN2011102856253 A CN 2011102856253A CN 201110285625 A CN201110285625 A CN 201110285625A CN 102380680 A CN102380680 A CN 102380680A
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Abstract
The invention discloses various on-line circuit board brazing furnaces with an energy-saving and nitrogen-saving device. A circuit board inlet and a circuit board outlet are formed in a furnace body; an inlet anti-flow hood and an outlet anti-flow hood are respectively arranged at the circuit board inlet and the circuit board outlet; the anti-flow hoods are connected with the circuit board inlet and the circuit board outlet in an airtight way; and a circuit board rises and enters from the bottom of the inlet anti-flow hood and drops and exits out from the bottom of the outlet anti-flow hood; and the horizontal heights of the bottom walls of the inlet anti-flow hood and the outlet anti-flow hood are lower than those of the bottom sides of the circuit board inlet and the circuit board outlet of the furnace body. In the brazing furnace, the principle that hot air rises is utilized; the horizontal heights of the bottom walls of the anti-flow hoods are set to be lower than those of the bottom sides of the circuit board inlet and the circuit board outlet of the furnace body; and when the hot air or hot nitrogen in the brazing furnace body overflows and floods in the anti-flow hoods, the hot air or the hot nitrogen cannot drop to escape to the outside through the bottoms of hood bodies because of low specific gravity, and external cool air cannot rise to enter the hood bodies because of high specific gravity, so that the hot air in the furnace body is prevented from radiating, hot loss is reduced, power energy is saved, and hot waste air is prevented from escaping to pollute the environment of a workshop. When a nitrogen protection welding operation (filling the nitrogen into the furnace) is performed, the hot nitrogen can be prevented from discharging and cool air can be prevented from entering so as to greatly reduce the using amount of the nitrogen and reduce the heating load of the brazing furnace.
Description
Technical field
The present invention relates to the technical field of wiring board assembling welding equipment, concrete cording has various online wiring board brazier energy-conservation and joint nitrogen device.
Background technology
At present; The wiring board of electron trade, the structure of its assembling welding equipment (industry is called for short brazier, comprises the brazier of various forms of air such as wave-soldering furnace, reflow soldering, selection brazier and inflated with nitrogen) is seen shown in Figure 1; In brazier, be provided with the wiring board conveyer belt, so that the transmission lines plate.In the brazier, be provided with preheating zone, fusion welded zone or tin melting slot flow jeting port etc. according to the production needs, so that wiring board is accomplished the scolding tin flow chart in brazier; In the scolding tin process, also have in order to prevent wiring board, electronic component and scolding tin oxidation nitrogen injection in brazier, thus the inflated with nitrogen brazier of control (reduction) oxygen concentration.
Yet; Receive traditional brazier structural limitations, that is: the wiring board of brazier inlet and outlet thereof are direct open state, and there is following weak point in it: (1) is when work; Temperature in the brazier is very high; Hot-air in the body of heater or hot nitrogen are because of temperature is high, light specific gravity looses from the two-termial line plate entrance and exit of brazier, and the outer cold air of brazier then gets in the body of heater via wiring board inlet and outlet, forms convection current (with atmosphere convection dissipation); The situation that this hot gas flows out, cold air flows into causes the operating mode energy consumption of brazier higher, and power consumption is bigger; (2) waste gas in the brazier of this kind of structure, its body of heater also flows out thereupon, and for avoiding causing workshop waste gas and thermal pollution, the exhausting exhausts in a large number of stove end cause more heat dissipation and air-conditioning burden, obviously increase the weight of use cost; (3) if nitrogen injection is protected weld job in brazier; Hot nitrogen via line plate inlet and outlet are flowed out in the stove; The outer cold air (oxygen) of stove then flows in the stove via wiring board inlet and outlet, for guaranteeing the nitrogen gas concn in the body of heater, need not stop in brazier, to inject a large amount of nitrogen and replenish; Both cause the raising of nitrogen use amount, increased the load of heating of brazier again.
Summary of the invention
The objective of the invention is to overcome the deficiency that above-mentioned prior art exists; Provide a kind of and prevent that hot-air and hot nitrogen in the brazier from loosing; Can stop cool exterior air to get into again, with the various online wiring board brazier that reduces its energy consumption and have environmental protection, saving use cost.
The objective of the invention is to realize like this:
Has various online wiring board brazier energy-conservation and joint nitrogen device; Body of heater is provided with wiring board inlet and outlet; It is characterized in that; Said wiring board inlet and exit are separately installed with anti-stream cover of inlet and the anti-stream cover of outlet, and anti-stream cover of inlet and the anti-stream cover of outlet adopt air-tight manner to be connected with brazier wiring board inlet and outlet thereof, and the level height of diapire of the diapire of the anti-stream cover of inlet and the anti-stream cover of outlet is lower than body of heater wiring board inlet bottom side and the outlet level height of bottom side.This kind of wiring board brazier through anti-stream cover is set, utilizes cold and hot specific gravity of gas difference, the hot gas rising principle; Make hot-air or hot nitrogen in the brazier, can't go into through the body of heater wiring board, export and loose, the cold air that it is outside; Also can't flow in the brazier, both can avoid the hot gas in the brazier to loose, improve the thermal efficiency; Save electric energy, can prevent that again waste gas is overflowed in the stove, avoid polluting; When using the nitrogen protection weld job, need not a large amount of nitrogen in the brazier and replenish, can obviously reduce the use amount of nitrogen through above-mentioned setting, and reduce the load of heating of brazier.
Further improvement technical measures of the present invention are following:
For wiring board can be got in the brazier automatically; Can in anti-stream cover of said inlet and the anti-stream cover of outlet, be respectively equipped with wiring board rising transmitting device and decline transmitting device; Through carrying out weld job in the rising transmitting device entering stove, the wiring board of then welding processing being accomplished is seen off through the decline transmitting device with wiring board to be processed.
As reasonable plan more, anti-stream cover of said inlet and the anti-stream cover of outlet inside are pasted with heat-barrier material, and are designed to the fast demountable form, have both increased brazier gateway aesthetic appearance, are convenient to adjustment, maintenance again.
Beneficial effect of the present invention is following:
(1) wiring board brazier of the present invention utilizes the hot gas rising principle, in the anti-stream cover of traditional brazier entrance and exit installing; Make hot-air or hot nitrogen in the brazier, can't with the outer cold air free convection of stove, avoid the heat in the brazier to loose; Improve the thermal efficiency, save electric energy;
(2) the anti-stream cover that is provided with is gone into, exported to the brazier wiring board; Can prevent outside the interior waste gas effusion stove of stove; Help treatment of waste gas in the stove, exempt a large amount of exhausting exhausts of fire door (traditional brazier is for avoiding causing workshop waste gas and thermal pollution, fire door exhausting exhausts in a large number) simultaneously; Practice thrift heat dissipation and air-conditioning burden, reduce waste discharge gas and pollute the workshop environment.
(3) the anti-stream cover of the brazier wiring board setting going into, export; Because of having stoped gaseous exchange inside and outside the brazier, when using nitrogen protection weld job (inflated with nitrogen stove), can prevent that hot nitrogen from discharging; Cold air flows into; Brazier need not a large amount of nitrogen and replenishes, and can obviously reduce the use amount of nitrogen, reduces the load of heating of brazier again.
(4) this wiring board brazier; Only prevent the stream cover through entering the mouth at wiring board and exporting the anti-stream cover of inlet porting and export, and the diapire level height of its cover body of appropriate design, can realize the object of the invention; It is simple and reasonable for structure, helps promoting the use of of product.
Description of drawings
Fig. 1 is the wiring board brazier structural representation of prior art;
Fig. 2 is a wiring board brazier structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further:
As shown in Figure 2; Has various online wiring board brazier energy-conservation and joint nitrogen device; Body of heater (1) is provided with wiring board inlet (2) and outlet (3) thereof; Said wiring board inlet (2) and outlet (3) thereof locate to be equipped with respectively anti-stream cover of inlet (4) and the anti-stream cover of outlet (5); The bottom surface of anti-stream cover of inlet (4) and the anti-stream cover of outlet (5) offers the cover body inlet (41) and the cover body outlet (51) that can supply wiring board to pass through respectively, and wiring board (not indicating) is got into by cover body inlet (41), after welding is accomplished in brazier; Seen off by cover body outlet (51), the level height of the diapire (511) of the diapire (411) of the anti-stream cover of inlet (4) and the anti-stream cover of outlet (5) is lower than the level height of body of heater wiring board inlet bottom side (21) and outlet bottom side (31) again.
For wiring board can be got in the brazier (1) automatically, in the anti-stream cover of inlet (4), establish wiring board rising transmitting device (7), wiring board to be processed is raise to be got in the stove; In the anti-stream cover of outlet (5), establish wiring board decline transmitting device (8), the wiring board that machines is seen off by descending in the stove.
The anti-stream cover of anti-stream cover of inlet (4) and outlet (5) inside is pasted with heat-barrier material, and is designed to the fast demountable form, has both increased brazier gateway aesthetic appearance, is convenient to adjustment, maintenance again.
Workflow: wiring board to be processed; Deliver to the wiring board inlet (2) of brazier through wiring board rising transmitting device (7) through cover body inlet (41); Deliver to each station processing in the body of heater by the feeding belt in the body of heater (1) again, wiring board machines after decline transmitting device (8) is derived from cover body outlet (51).
More than being basic embodiment of the present invention, is not to technical scheme of the present invention, makes exhaustive for example, and therefore, if those skilled in the art is with core idea of the present invention, has done not break away from scheme of the present invention, all belongs to protection scope of the present invention.
Claims (4)
1. has various online wiring board brazier energy-conservation and joint nitrogen device; Body of heater (1) is provided with wiring board inlet (2) and outlet (3); It is characterized in that; Said wiring board inlet (2) and outlet (3) locate to be equipped with respectively anti-stream cover of inlet (4) and the anti-stream cover of outlet (5); The bottom surface of anti-stream cover of inlet (4) and the anti-stream cover of outlet (5) offers the cover body inlet (41) and the cover body outlet (51) that can supply wiring board to pass through respectively, and the level height of the diapire (511) of the diapire (411) of the anti-stream cover of inlet (4) and the anti-stream cover of outlet (5) is lower than the level height of body of heater wiring board inlet bottom side (21) and outlet bottom side (31).
2. have a various online wiring board brazier energy-conservation and joint nitrogen device according to claim 1 is said, it is characterized in that: the anti-stream cover of said inlet (4) and the anti-stream cover of outlet (5) are with brazier wiring board inlet (2) and export (3) employing air-tight manner and be connected.
3. has a various online wiring board brazier energy-conservation and joint nitrogen device according to claim 1 is said; It is characterized in that anti-stream cover of said inlet (4) and outlet prevent being respectively equipped with wiring board rising transmitting device (7) in the stream cover (5) and decline transmitting device (8) integrates with the production line conveyer belt.
4. have a various online wiring board brazier energy-conservation and joint nitrogen device according to claim 1 is said, it is characterized in that the anti-stream cover of said inlet (4) covers (5) inside with the anti-stream of outlet and is pasted with heat-barrier material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102856253A CN102380680A (en) | 2011-09-23 | 2011-09-23 | Various on-line circuit board brazing furnaces with energy-saving and nitrogen-saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102856253A CN102380680A (en) | 2011-09-23 | 2011-09-23 | Various on-line circuit board brazing furnaces with energy-saving and nitrogen-saving device |
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| Publication Number | Publication Date |
|---|---|
| CN102380680A true CN102380680A (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102856253A Pending CN102380680A (en) | 2011-09-23 | 2011-09-23 | Various on-line circuit board brazing furnaces with energy-saving and nitrogen-saving device |
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| CN (1) | CN102380680A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104871655A (en) * | 2012-12-14 | 2015-08-26 | 乔治洛德方法研究和开发液化空气有限公司 | Portable equipment for monitoring and controlling the level of oxygen in reflow oven atmosphere |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57169588A (en) * | 1981-04-10 | 1982-10-19 | Hitachi Funmatsu Yakin Kk | Work take-off construction of continous furnace |
| CN2296790Y (en) * | 1997-07-30 | 1998-11-11 | 王德法 | Car-type brazier |
| CN1516543A (en) * | 2002-11-25 | 2004-07-28 | 千住金属工业株式会社 | Backflow brazier |
| CN2750883Y (en) * | 2004-07-15 | 2006-01-11 | 北京七星华创电子股份有限公司 | Hydrogen brazing furnace |
| CN202344078U (en) * | 2011-09-23 | 2012-07-25 | 皇甫国庆 | Various-online circuit board brazier with energy saving and nitrogen saving device |
-
2011
- 2011-09-23 CN CN2011102856253A patent/CN102380680A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57169588A (en) * | 1981-04-10 | 1982-10-19 | Hitachi Funmatsu Yakin Kk | Work take-off construction of continous furnace |
| CN2296790Y (en) * | 1997-07-30 | 1998-11-11 | 王德法 | Car-type brazier |
| CN1516543A (en) * | 2002-11-25 | 2004-07-28 | 千住金属工业株式会社 | Backflow brazier |
| CN2750883Y (en) * | 2004-07-15 | 2006-01-11 | 北京七星华创电子股份有限公司 | Hydrogen brazing furnace |
| CN202344078U (en) * | 2011-09-23 | 2012-07-25 | 皇甫国庆 | Various-online circuit board brazier with energy saving and nitrogen saving device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104871655A (en) * | 2012-12-14 | 2015-08-26 | 乔治洛德方法研究和开发液化空气有限公司 | Portable equipment for monitoring and controlling the level of oxygen in reflow oven atmosphere |
| CN104871655B (en) * | 2012-12-14 | 2017-11-10 | 乔治洛德方法研究和开发液化空气有限公司 | For the portable equipment of oxygen level in reflow soldering atmosphere to be monitored and controlled |
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Application publication date: 20120321 |