CN104551305A - Structure modified through-hole reflow soldering machine - Google Patents
Structure modified through-hole reflow soldering machine Download PDFInfo
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- CN104551305A CN104551305A CN201510027897.1A CN201510027897A CN104551305A CN 104551305 A CN104551305 A CN 104551305A CN 201510027897 A CN201510027897 A CN 201510027897A CN 104551305 A CN104551305 A CN 104551305A
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- inner furnace
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- 238000005476 soldering Methods 0.000 title claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 184
- 238000007664 blowing Methods 0.000 claims abstract description 101
- 238000010438 heat treatment Methods 0.000 claims abstract description 99
- 238000006243 chemical reaction Methods 0.000 claims abstract description 58
- 230000004089 microcirculation Effects 0.000 claims abstract description 25
- 230000004087 circulation Effects 0.000 claims description 49
- 238000007669 thermal treatment Methods 0.000 claims description 10
- 238000003754 machining Methods 0.000 abstract 1
- UFNIBRDIUNVOMX-UHFFFAOYSA-N 2,4'-dichlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1Cl UFNIBRDIUNVOMX-UHFFFAOYSA-N 0.000 description 26
- 238000000034 method Methods 0.000 description 6
- 238000010791 quenching Methods 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/04—Heating appliances
- B23K3/047—Heating appliances electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/085—Cooling, heat sink or heat shielding means
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention discloses a structure modified through-hole reflow soldering machine. A circuit board conveying rail, eight heating regions and two natural air cooling regions are mounted in the reflow soldering machine. Every heating region comprises a micro-circulation air blowing area and a micro-circulation heating area. Every micro-circulation air blowing area comprises a circulating air blowing inner furnace, a circulating air blowing outer furnace and a circulating air blowing frequency conversion fan. Every micro-circulation heating area comprises a circulating heating inner furnace, a circulating heating outer furnace, a circulating heating frequency conversion fan and an electric heater. Every natural air cooling region comprises an upper cooling area and a lower cooling area. Every upper cooling area comprises an upper cooling inner furnace, an upper cooling outer furnace and an upper cooling frequency conversion fan. Every lower cooling area comprises a lower cooling inner furnace, a lower cooling outer furnace and a lower cooling frequency conversion fan. The structure modified through-hole reflow soldering machine is controlled through a PLC (Programmable Logic Controller). By means of the above structure design, the structure modified through-hole reflow soldering machine can automatically and efficiently complete the machining of PCB (printed circuit board) through-hole reflow soldering in high quality and is novel in structural design and high in automation degree.
Description
Technical field
The present invention relates to technical field of automation equipment, particularly relate to a kind of structure improved Through-hole reflow machine.
Background technology
Due to the needs that electronic product PCB is constantly miniaturized, occurred chip component, traditional welding method can not meet the needs of; First, in hybrid circuit board assembling, have employed reflow soldering process, the element majority of assembly welding is flaky electric capacity, pellet inductor, pasting type transistor and diode etc.Along with the whole technical development of SMT is gradually improved, the appearance of multiple surface mount elements (SMC) and Mount Device (SMD), also developed accordingly as the reflow soldering process technology of a mounting technology part and equipment, its application is increasingly extensive, is almost all applied at all electronics field.
For Through-hole reflow technique, how efficiently and complete Through-hole reflow processing in high quality and seem particularly important.
Summary of the invention
The object of the present invention is to provide a kind of structure improved Through-hole reflow machine, this structure improved Through-hole reflow machine is novel in design, automaticity is high, operating efficiency is high and effectively can ensure the quality of Through-hole reflow.
For achieving the above object, the present invention is achieved through the following technical solutions.
A kind of structure improved Through-hole reflow machine, include Reflow Soldering board, Reflow Soldering board is fitted with the inside being positioned at Reflow Soldering board and the wiring board delivery track arranged in horizontal cross, the inside of Reflow Soldering board is equiped with eight heating warm areas of arranging successively along the length direction of wiring board delivery track, and each heating warm area includes the microcirculation thermal treatment zone that a microcirculation blowing district and being positioned at wiring board delivery track upper end side is positioned at wiring board delivery track lower end side respectively;
Each microcirculation blowing district includes circulation blowing inner furnace body and circulation blowing external furnace body respectively, the inside of circulation blowing external furnace body forms the blowing external furnace body inner chamber of downwardly facing opening, circulation blowing inner furnace body is flush-mounted in the blowing external furnace body inner chamber of circulation blowing external furnace body, the inside of circulation blowing inner furnace body forms the blowing inner furnace body inner chamber towards upper shed, the base plate of circulation blowing inner furnace body offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of base plate lower surface of circulation blowing inner furnace body is equiped with the blowing nozzle towards wiring board delivery track Lateral supply respectively, the upper end of circulation blowing external furnace body is equiped with circulation blowing frequency conversion fan, circulation blowing frequency conversion fan impeller through circulation blowing inner furnace body opening and stretch to circulation blowing inner furnace body blowing inner furnace body inner chamber,
Each microcirculation thermal treatment zone includes circulating-heating inner furnace body and circulating-heating external furnace body respectively, the inside of circulating-heating external furnace body forms the heating external furnace body inner chamber towards upper shed, circulating-heating inner furnace body is flush-mounted in the heating external furnace body inner chamber of circulating-heating external furnace body, the inside of circulating-heating inner furnace body forms the heating inner furnace body inner chamber of downwardly facing opening, the top board of circulating-heating inner furnace body offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of cover top surface of circulating-heating inner furnace body is equiped with the blowing nozzle towards wiring board delivery track Lateral supply respectively, the bottom of circulating-heating external furnace body is equiped with circulating-heating frequency conversion fan, the impeller of circulating-heating frequency conversion fan through circulating-heating inner furnace body opening and stretch to the heating inner furnace body inner chamber of circulating-heating inner furnace body, gap between circulating-heating inner furnace body and circulating-heating external furnace body is equiped with electric heater,
The inside of Reflow Soldering board is equiped with two natural wind cooling zones of arranging successively along wiring board delivery track in the heating warm area rear end side of end, and each natural air cooling district includes the lower cooling zone that a upper cooling zone and being positioned at wiring board delivery track upper end side is positioned at wiring board delivery track lower end side respectively;
Each upper cooling zone includes cooling inner furnace body and upper cooling external furnace body respectively, the inside of upper cooling external furnace body forms the upper cooling external furnace body inner chamber of downwardly facing opening, upper cooling inner furnace body is flush-mounted in the upper cooling external furnace body inner chamber of cooling external furnace body, the inside of upper cooling inner furnace body forms the upper cooling inner furnace body inner chamber towards upper shed, the base plate of upper cooling inner furnace body offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of base plate lower surface of upper cooling inner furnace body is equiped with the blowing nozzle towards wiring board delivery track Lateral supply respectively, the upper end of upper cooling external furnace body is equiped with cooling frequency conversion fan, the impeller of upper cooling frequency conversion fan through upper cooling inner furnace body opening and stretch to the upper cooling inner furnace body inner chamber of cooling inner furnace body,
Each lower cooling zone includes lower cooling inner furnace body and lower cooling external furnace body respectively, the inside of lower cooling external furnace body forms the lower cooling external furnace body inner chamber towards upper shed, lower cooling inner furnace body is flush-mounted in the lower cooling external furnace body inner chamber of lower cooling external furnace body, the inside of lower cooling inner furnace body forms the lower cooling inner furnace body inner chamber of downwardly facing opening, the top board of lower cooling inner furnace body offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of cover top surface of lower cooling inner furnace body is equiped with the blowing nozzle towards wiring board delivery track Lateral supply respectively, the bottom of lower cooling external furnace body is equiped with lower cooling frequency conversion fan, the impeller of lower cooling frequency conversion fan through lower cooling inner furnace body opening and stretch to the lower cooling inner furnace body inner chamber of lower cooling inner furnace body,
This structure improved Through-hole reflow machine is fitted with PLC, and wiring board delivery track, circulation blowing frequency conversion fan, circulating-heating frequency conversion fan, upper cooling frequency conversion fan and lower cooling frequency conversion fan are electrically connected with PLC respectively.
Wherein, described wiring board delivery track includes two parallel interval and to arrange and respectively along the guide rail that wiring board delivery track length direction extends, each guide rail offers respectively towards inner opening and the guide groove extended along rail length direction, chain is embedded with respectively in each guide groove, chain is fitted with drive motors, drive motors drives with chain and is connected, and described PLC is electrically connected with drive motors.
Beneficial effect of the present invention is: the structure improved Through-hole reflow machine of one of the present invention, its Reflow Soldering board inner wiring plate delivery track, eight heating warm areas and two natural wind cooling zones; Each heating warm area comprises a microcirculation blowing district, a microcirculation thermal treatment zone respectively, each microcirculation blowing district comprises circulation blowing inner furnace body, circulation blowing external furnace body, circulation blowing frequency conversion fan respectively, and each microcirculation thermal treatment zone includes circulating-heating inner furnace body, circulating-heating external furnace body, circulating-heating frequency conversion fan and the electric heater between circulating-heating inner furnace body and circulating-heating external furnace body respectively; Each natural air cooling district comprises cooling zone on, once cooling zone respectively, each upper cooling zone comprises cooling inner furnace body, upper cooling external furnace body, upper cooling frequency conversion fan respectively, and each lower cooling zone comprises lower cooling inner furnace body, lower cooling external furnace body, lower cooling frequency conversion fan respectively; This structure improved Through-hole reflow machine is equipped with PLC.Designed by said structure, the present invention can be automatical and efficient and complete the processing of PCB Through-hole reflow in high quality, and namely to have novel in structural design, automaticity high and effectively can ensure the advantage of Through-hole reflow quality in the present invention.
Accompanying drawing explanation
Utilize accompanying drawing to be further detailed the present invention below, but the embodiment in accompanying drawing does not form any limitation of the invention.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the close-up schematic view of " A " position shown in Fig. 1.
Include in fig. 1 and 2:
1---Reflow Soldering board 2---wiring board delivery track
21---guide rail 22---chain
3---microcirculation blowing district 31---circulation blowing inner furnace body
311---blowing inner furnace body inner chamber 32---circulation blowing external furnace body
321---blowing external furnace body inner chamber 33---circulation blowing frequency conversion fan
4---microcirculation thermal treatment zone 41---circulating-heating inner furnace body
411---heating inner furnace body inner chamber 42---circulating-heating external furnace body
421---heating external furnace body inner chamber 43---circulating-heating frequency conversion fan
The upper cooling zone of 44---electric heaters 5---
51---above cooling inner furnace body 511---above cool inner furnace body inner chamber
52---above cooling external furnace body 521---above cool external furnace body inner chamber
53---above cooling frequency conversion fan 6---lower cooling zone
61---lower cooling inner furnace body 611---lower cooling inner furnace body inner chamber
62---lower cooling external furnace body 621---lower cooling external furnace body inner chamber
63---lower cooling frequency conversion fan 7---blowing nozzle
8---PCB.
Detailed description of the invention
Below in conjunction with concrete embodiment, the present invention will be described.
As depicted in figs. 1 and 2, a kind of structure improved Through-hole reflow machine, include Reflow Soldering board 1, Reflow Soldering board 1 is fitted with the inside being positioned at Reflow Soldering board 1 and the wiring board delivery track 2 arranged in horizontal cross, the inside of Reflow Soldering board 1 is equiped with eight heating warm areas of arranging successively along the length direction of wiring board delivery track 2, and each heating warm area includes the microcirculation thermal treatment zone 4 that a microcirculation blowing district 3 and being positioned at wiring board delivery track 2 upper end side is positioned at wiring board delivery track 2 lower end side respectively.
Wherein, each microcirculation blowing district 3 includes circulation blowing inner furnace body 31 and circulation blowing external furnace body 32 respectively, the inside of circulation blowing external furnace body 32 forms the blowing external furnace body inner chamber 321 of downwardly facing opening, circulation blowing inner furnace body 31 is flush-mounted in the blowing external furnace body inner chamber 321 of circulation blowing external furnace body 32, the inside of circulation blowing inner furnace body 31 forms the blowing inner furnace body inner chamber 311 towards upper shed, the base plate of circulation blowing inner furnace body 31 offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of base plate lower surface of circulation blowing inner furnace body 31 is equiped with the blowing nozzle 7 towards wiring board delivery track 2 Lateral supply respectively, the upper end of circulation blowing external furnace body 32 is equiped with circulation blowing frequency conversion fan 33, circulation blowing frequency conversion fan 33 impeller through circulation blowing inner furnace body 31 opening and stretch to circulation blowing inner furnace body 31 blowing inner furnace body inner chamber 311.
Further, each microcirculation thermal treatment zone 4 includes circulating-heating inner furnace body 41 and circulating-heating external furnace body 42 respectively, the inside of circulating-heating external furnace body 42 forms the heating external furnace body inner chamber 421 towards upper shed, circulating-heating inner furnace body 41 is flush-mounted in the heating external furnace body inner chamber 421 of circulating-heating external furnace body 42, the inside of circulating-heating inner furnace body 41 forms the heating inner furnace body inner chamber 411 of downwardly facing opening, the top board of circulating-heating inner furnace body 41 offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of cover top surface of circulating-heating inner furnace body 41 is equiped with the blowing nozzle 7 towards wiring board delivery track 2 Lateral supply respectively, the bottom of circulating-heating external furnace body 42 is equiped with circulating-heating frequency conversion fan 43, the impeller of circulating-heating frequency conversion fan 43 through circulating-heating inner furnace body 41 opening and stretch to the heating inner furnace body inner chamber 411 of circulating-heating inner furnace body 41, gap between circulating-heating inner furnace body 41 and circulating-heating external furnace body 42 is equiped with electric heater 44.
In addition, the inside of Reflow Soldering board 1 is equiped with two natural wind cooling zones of arranging successively along wiring board delivery track 2 in the heating warm area rear end side of end, and each natural air cooling district includes the lower cooling zone 6 that a upper cooling zone 5 and being positioned at wiring board delivery track 2 upper end side is positioned at wiring board delivery track 2 lower end side respectively.
Wherein, each upper cooling zone 5 includes cooling inner furnace body 51 and upper cooling external furnace body 52 respectively, the inside of upper cooling external furnace body 52 forms the upper cooling external furnace body inner chamber 521 of downwardly facing opening, upper cooling inner furnace body 51 is flush-mounted in the upper cooling external furnace body inner chamber 521 of cooling external furnace body 52, the inside of upper cooling inner furnace body 51 forms the upper cooling inner furnace body inner chamber 511 towards upper shed, the base plate of upper cooling inner furnace body 51 offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of base plate lower surface of upper cooling inner furnace body 51 is equiped with the blowing nozzle 7 towards wiring board delivery track 2 Lateral supply respectively, the upper end of upper cooling external furnace body 52 is equiped with cooling frequency conversion fan 53, the impeller of upper cooling frequency conversion fan 53 through upper cooling inner furnace body 51 opening and stretch to the upper cooling inner furnace body inner chamber 511 of cooling inner furnace body 51.
Further, each lower cooling zone 6 includes lower cooling inner furnace body 61 and lower cooling external furnace body 62 respectively, the inside of lower cooling external furnace body 62 forms the lower cooling external furnace body inner chamber 621 towards upper shed, lower cooling inner furnace body 61 is flush-mounted in the lower cooling external furnace body inner chamber 621 of lower cooling external furnace body 62, the inside of lower cooling inner furnace body 61 forms the lower cooling inner furnace body inner chamber 611 of downwardly facing opening, the top board of lower cooling inner furnace body 61 offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of cover top surface of lower cooling inner furnace body 61 is equiped with the blowing nozzle 7 towards wiring board delivery track 2 Lateral supply respectively, the bottom of lower cooling external furnace body 62 is equiped with lower cooling frequency conversion fan 63, the impeller of lower cooling frequency conversion fan 63 through lower cooling inner furnace body 61 opening and stretch to the lower cooling inner furnace body inner chamber 611 of lower cooling inner furnace body 61.
Need point out further, this structure improved Through-hole reflow machine is fitted with PLC, and wiring board delivery track 2, circulation blowing frequency conversion fan 33, circulating-heating frequency conversion fan 43, upper cooling frequency conversion fan 53 and lower cooling frequency conversion fan 63 are electrically connected with PLC respectively.
wherein, the temperature values in each microcirculation blowing district 3 is 80-100 degree, and the temperature values in each microcirculation hot blast district 4 is 200-250 degree.
In the course of work of the present invention, the PCB 8 after brush tin cream, plug-in unit processing enters to wiring board delivery track 2, and under the driving effect of wiring board delivery track 2, PCB 8 is successively through eight heating warm areas and two natural wind cooling zones.Wherein, when PCB 8 is through each heating warm area, the circulation blowing frequency conversion fan 33 in microcirculation blowing district 3 is toward canyon, PCB 8 upper surface is fed through by the gas hole of circulation blowing inner furnace body 31 base plate and blowing nozzle 7 by the air-flow that drives of circulation blowing frequency conversion fan 33, said flow is by PCB 8 upper surface and carry out cooling quench to PCB 8 upper surface, the electronic devices and components of PCB 8 upper surface are plugged in protection, air-flow through PCB 8 upper surface extremely to circulate the blowing inner furnace body inner chamber 311 of inner furnace body 31 of drying via circulation blowing inner furnace body 31 and the circulate gap of dry between external furnace body 32 and circulating reflux, in the process of the electronic devices and components of microcirculation blowing district 3 quenching protection PCB 8 upper surface, the circulating-heating frequency conversion fan 43 of the microcirculation thermal treatment zone 4 is toward up-draught, the air-flow driven by circulating-heating frequency conversion fan 43 is fed through PCB 8 lower surface through the gas hole of circulating-heating inner furnace body 41 top board and blowing nozzle 7, the tin cream of said flow to PCB 8 lower surface carries out heating and finally completes the pin welding of electronic devices and components, through gap between circulating-heating inner furnace body 41 and circulating-heating external furnace body 42 of the air-flow of PCB 8 lower surface and circulating reflux to the heating inner furnace body inner chamber 411 of circulating-heating inner furnace body 41.
Through each heating warm area and complete Through-hole reflow processing PCB 8 more successively by two natural wind cooling zones, cooling processing is carried out to PCB 8 in two natural wind cooling zones; Wherein, the upper cooling frequency conversion fan 53 of upper cooling zone 5 is toward canyon, the air-flow driven by upper cooling frequency conversion fan 53 is fed through PCB 8 upper surface by the gas hole of upper cooling inner furnace body 51 base plate and blowing nozzle 7, said flow is by PCB 8 upper surface and carry out cooling quench to PCB 8 upper surface, through the air-flow of PCB 8 upper surface via the gap between upper cooling inner furnace body 51 and upper cooling external furnace body 52 the upper cooling inner furnace body inner chamber 511 of circulating reflux supreme cooling inner furnace body 51.Same, the lower cooling frequency conversion fan 63 of lower cooling zone 6 is toward up-draught, the air-flow driven by lower cooling frequency conversion fan 63 is fed through PCB 8 lower surface by the gas hole of lower cooling inner furnace body 61 top board and blowing nozzle 7, said flow is by PCB 8 lower surface and carry out cooling quench to PCB 8 lower surface, through the air-flow of PCB 8 lower surface via the gap between lower cooling inner furnace body 61 and lower cooling external furnace body 62 circulating reflux to the lower cooling inner furnace body inner chamber 611 of lower cooling inner furnace body 61.
Need to explain further, the present invention controls each frequency conversion fan action by PLC, and namely the present invention the through hole running speed that controls frequency conversion fan can come controlled cooling model temperature and heating-up temperature.
Comprehensive above-mentioned situation is known, designed by said structure, the present invention can be automatical and efficient and complete the processing of PCB 8 Through-hole reflow in high quality, and namely to have novel in structural design, automaticity high and effectively can ensure the advantage of Through-hole reflow quality in the present invention.
As preferred embodiment, as depicted in figs. 1 and 2, wiring board delivery track 2 includes two parallel interval and to arrange and respectively along the guide rail 21 that wiring board delivery track 2 length direction extends, each guide rail 21 offers respectively towards inner opening and the guide groove extended along guide rail 21 length direction, chain 22 is embedded with respectively in each guide groove, chain 22 is fitted with drive motors, and drive motors drives with chain 22 and is connected, and PLC is electrically connected with drive motors.Carry in the process of PCB 8 at wiring board delivery track 2 of the present invention, PCB 8 is taken and is put in chain 22, and the guide groove of each guide rail 21 can play the effect guiding PCB 8 movement.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (2)
1. a structure improved Through-hole reflow machine, it is characterized in that: include Reflow Soldering board (1), Reflow Soldering board (1) is fitted with the inside being positioned at Reflow Soldering board (1) and the wiring board delivery track (2) arranged in horizontal cross, the inside of Reflow Soldering board (1) is equiped with eight heating warm areas of arranging successively along the length direction of wiring board delivery track (2), each heating warm area includes the microcirculation thermal treatment zone (4) that microcirculation blowing district (3) and being positioned at wiring board delivery track (2) upper end side is positioned at wiring board delivery track (2) lower end side respectively,
Each microcirculation blowing district (3) includes circulation blowing inner furnace body (31) and circulation blowing external furnace body (32) respectively, the inside of circulation blowing external furnace body (32) forms the blowing external furnace body inner chamber (321) of downwardly facing opening, circulation blowing inner furnace body (31) is flush-mounted in the blowing external furnace body inner chamber (321) of circulation blowing external furnace body (32), the inside of circulation blowing inner furnace body (31) forms the blowing inner furnace body inner chamber (311) towards upper shed, the base plate of circulation blowing inner furnace body (31) offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of base plate lower surface of circulation blowing inner furnace body (31) is equiped with the blowing nozzle (7) towards wiring board delivery track (2) Lateral supply respectively, the upper end of circulation blowing external furnace body (32) is equiped with circulation blowing frequency conversion fan (33), circulation blowing frequency conversion fan (33) impeller through circulation blowing inner furnace body (31) opening and stretch to circulation blowing inner furnace body (31) blowing inner furnace body inner chamber (311),
Each microcirculation thermal treatment zone (4) includes circulating-heating inner furnace body (41) and circulating-heating external furnace body (42) respectively, the inside of circulating-heating external furnace body (42) forms the heating external furnace body inner chamber (421) towards upper shed, circulating-heating inner furnace body (41) is flush-mounted in the heating external furnace body inner chamber (421) of circulating-heating external furnace body (42), the inside of circulating-heating inner furnace body (41) forms the heating inner furnace body inner chamber (411) of downwardly facing opening, the top board of circulating-heating inner furnace body (41) offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of cover top surface of circulating-heating inner furnace body (41) is equiped with the blowing nozzle (7) towards wiring board delivery track (2) Lateral supply respectively, the bottom of circulating-heating external furnace body (42) is equiped with circulating-heating frequency conversion fan (43), the impeller of circulating-heating frequency conversion fan (43) through circulating-heating inner furnace body (41) opening and stretch to the heating inner furnace body inner chamber (411) of circulating-heating inner furnace body (41), gap between circulating-heating inner furnace body (41) and circulating-heating external furnace body (42) is equiped with electric heater (44),
The inside of Reflow Soldering board (1) is equiped with two natural wind cooling zones of arranging successively along wiring board delivery track (2) in the heating warm area rear end side of end, and each natural air cooling district includes the lower cooling zone (6) that a upper cooling zone (5) and being positioned at wiring board delivery track (2) upper end side is positioned at wiring board delivery track (2) lower end side respectively;
Each upper cooling zone (5) includes cooling inner furnace body (51) and upper cooling external furnace body (52) respectively, the inside of upper cooling external furnace body (52) forms the upper cooling external furnace body inner chamber (521) of downwardly facing opening, upper cooling inner furnace body (51) is flush-mounted in the upper cooling external furnace body inner chamber (521) of cooling external furnace body (52), the inside of upper cooling inner furnace body (51) forms the upper cooling inner furnace body inner chamber (511) towards upper shed, the base plate of upper cooling inner furnace body (51) offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of base plate lower surface of upper cooling inner furnace body (51) is equiped with the blowing nozzle (7) towards wiring board delivery track (2) Lateral supply respectively, the upper end of upper cooling external furnace body (52) is equiped with cooling frequency conversion fan (53), the impeller of upper cooling frequency conversion fan (53) through upper cooling inner furnace body (51) opening and stretch to the upper cooling inner furnace body inner chamber (511) of cooling inner furnace body (51),
Each lower cooling zone (6) includes lower cooling inner furnace body (61) and lower cooling external furnace body (62) respectively, the inside of lower cooling external furnace body (62) forms the lower cooling external furnace body inner chamber (621) towards upper shed, lower cooling inner furnace body (61) is flush-mounted in the lower cooling external furnace body inner chamber (621) of lower cooling external furnace body (62), the inside of lower cooling inner furnace body (61) forms the lower cooling inner furnace body inner chamber (611) of downwardly facing opening, the top board of lower cooling inner furnace body (61) offers the gas hole of the distribution in uniform intervals, the corresponding each gas hole of cover top surface of lower cooling inner furnace body (61) is equiped with the blowing nozzle (7) towards wiring board delivery track (2) Lateral supply respectively, the bottom of lower cooling external furnace body (62) is equiped with lower cooling frequency conversion fan (63), the impeller of lower cooling frequency conversion fan (63) through lower cooling inner furnace body (61) opening and stretch to the lower cooling inner furnace body inner chamber (611) of lower cooling inner furnace body (61),
This structure improved Through-hole reflow machine is fitted with PLC, and wiring board delivery track (2), circulation blowing frequency conversion fan (33), circulating-heating frequency conversion fan (43), upper cooling frequency conversion fan (53) and lower cooling frequency conversion fan (63) are electrically connected with PLC respectively.
2. the structure improved Through-hole reflow machine of one according to claim 1; It is characterized in that: described wiring board delivery track (2) includes two parallel interval and to arrange and respectively along the guide rail (21) that wiring board delivery track (2) length direction extends, each guide rail (21) offers respectively towards inner opening and the guide groove extended along guide rail (21) length direction, chain (22) is embedded with respectively in each guide groove, chain (22) is fitted with drive motors, drive motors drives with chain (22) and is connected, and described PLC is electrically connected with drive motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510027897.1A CN104551305B (en) | 2015-01-21 | 2015-01-21 | Through-hole reflow soldering machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510027897.1A CN104551305B (en) | 2015-01-21 | 2015-01-21 | Through-hole reflow soldering machine |
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| Publication Number | Publication Date |
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| CN104551305A true CN104551305A (en) | 2015-04-29 |
| CN104551305B CN104551305B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510027897.1A Active CN104551305B (en) | 2015-01-21 | 2015-01-21 | Through-hole reflow soldering machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106304681A (en) * | 2016-08-16 | 2017-01-04 | 成都俱进科技有限公司 | A kind of Welding Structure of SMT product |
| CN112077411A (en) * | 2019-06-15 | 2020-12-15 | 王定锋 | Reflow furnace with air conditioner |
| CN114289816A (en) * | 2021-12-10 | 2022-04-08 | 王晓娜 | Assembling system for welding patch element |
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| CN112077411A (en) * | 2019-06-15 | 2020-12-15 | 王定锋 | Reflow furnace with air conditioner |
| CN114289816A (en) * | 2021-12-10 | 2022-04-08 | 王晓娜 | Assembling system for welding patch element |
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| CN104551305B (en) | 2017-01-11 |
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