CN108495483A - Sliding rail support holds formula pcb board reflow welding stove auxiliary transmission system - Google Patents
Sliding rail support holds formula pcb board reflow welding stove auxiliary transmission system Download PDFInfo
- Publication number
- CN108495483A CN108495483A CN201810253796.XA CN201810253796A CN108495483A CN 108495483 A CN108495483 A CN 108495483A CN 201810253796 A CN201810253796 A CN 201810253796A CN 108495483 A CN108495483 A CN 108495483A
- Authority
- CN
- China
- Prior art keywords
- pcb board
- sliding rail
- rectangle
- tray
- sliding
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 48
- 230000005540 biological transmission Effects 0.000 title claims abstract description 32
- 238000007639 printing Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 description 13
- 238000005476 soldering Methods 0.000 description 11
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 description 7
- 230000007723 transport mechanism Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 229910000737 Duralumin Inorganic materials 0.000 description 1
- 208000032369 Primary transmission Diseases 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- 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
- H05K3/341—Surface mounted components
-
- 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
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/04—Soldering or other types of metallurgic bonding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
A kind of sliding rail support disclosed by the invention holds formula pcb board reflow welding stove auxiliary transmission system, it is desirable to provide a kind of accurate positioning, transmitting reliability reflow welding stove auxiliary transmission system.The technical scheme is that：It is parallel above and below rectangle sliding rail, and it is formed with transversely perforative sliding-rail groove, at least three rectangle slide bars are slided by both ends rectangle sliding rail and are located in above-mentioned sliding-rail groove by locking sliding block and hand-tight screw, the longitudinal surface of every rectangle slide bar is formed with inverted T-shaped groove, the rectangular shaped slider of positioning printing board PCB A is equipped in inverted T-shaped groove, every rectangular shaped slider is formed with the tray that support holds pcb board, rectangular shaped slider is slided along inverted T-shaped groove, the support backing formula being combined into needed for pcb board can quickly be slided, at least four rectangular shaped sliders and the combination that tray is constituted are all made of hand-tight screw by pcb board locking positioning on rectangle slide bar parallel two-by-two.The present invention solves the problems, such as that the prior art can not transmit sketch plate, chain type track pin and easily collide with printed board periphery component interference.
Description
Technical field
The present invention relates to electronic circuit surface installation technique SMT hot air reflow soldering stove chain conveyor systems to optimize transmission welding
The auxiliary transport mechanism of printing board PCB.
Background technology
It is electronics member device that various electronic devices are assembled printing board PCB A in the circuit board by surface packaging technique
The supporter of part is the carrier of electronic component electrical connection.Reflow ovens are the last one crucial works of surface mounting technology SMT
Sequence is a real time planning, and change in process is more complicated, is related to many technological parameters, the wherein setting of temperature curve
It is mostly important, directly determine reflow soldering quality.The temperature curve of reflow ovens is divided into following several sections：Preheating, heat preservation and dryness, weldering
It connects.Preheating is in order to which the thermal shock for keeping component suffered in welding is minimum.The generally patient rate temperature change of component
For 4 DEG C/SEC hereinafter, therefore warm-up phase heating rate general control is in 1 DEG C/SEC~3 DEG C/SEC, while Wen Shengtai can make soon
It is splashed out at solder.Heat preservation and dryness is to ensure that solder soldering fluid is completely dried, while scaling powder removes the oxide of welding surface
It removes, plays activation.Reflow soldering area, tin cream start thawing and are in flow regime, to be generally more than 20 DEG C of ability of melting temperature
Ensure welding quality.In order to ensure the exit of the entire pad of solder-wettable and component in flow regime, it is desirable that weldering
An important factor for material is 40~90 seconds in the time of molten condition, this is also determined whether to generate rosin joint and dry joint.When PCB enters
When preheating zone, moisture content, gas evaporation in soldering paste, scaling powder moistening component pin and pad, soldering paste start to soften and cover weldering
Disk makes component pin and pad be isolated with oxygen；When PCB enters recirculating zone, temperature rises rapidly, and soldering paste reaches molten state,
To on PCB component pin and pad moistening, diffusion, reflux, be cooled into soldering connector later, so as to complete Reflow Soldering.
The prior art overwhelming majority transmits welding printing board PCB A by the way of the transmission of hot air reflow soldering stove chain type track.Hot wind
Reflow welding stove entry/exit mouth has sluice gate, height 30mm, it is desirable that cannot be dry with sluice gate after auxiliary transport mechanism carrying pcb board
It relates to.Chain type track sets transmission belt speed according to output, holds pcb board by track both sides pin support and enters in reflow welding stove and carries out
Welding.Since reflow welding stove transmission track spacing has lower limiting value, for the pcb board less than its lower limiting value size, reflow welding stove rail
Road will be unable to hold in the palm to hold transmission.V slots technique edges can not be done for the mixing of a variety of base materials and component is less than track from edges of boards edge
The high density PCB of length of pin, when reflow welding stove track support holds transmission, track pin easily collides with component dry
It relates to, component will be destroyed when serious, therefore pcb board of the high density without technique edges can not equally hold transmission welding with track support.Together
When welding equally can not be also transmitted for the special-shaped pcb board reflow welding stove track such as " L " shape.
For above-mentioned transmission difficult point, it is to be worn on the pin of two siding tracks that hot air reflux brazier equipment manufacturer, which recommends method one,
Steel bar, then printed board is placed on transmission welding printing board PCB A on the monoblock type steel bar wire side of parallel interval arrangement；Side
Method two is to install net belt type conveyer system additional.For the efficiency first of the above method one it is very low under, and wear steel bar process and be easy to cause
Personnel scald, and secondly steel bar can bend after being used for multiple times, unhorizontal after causing printed board to be placed on steel bar wire side, to weldering
It connects quality and brings hidden danger.For method two, net belt type transmission only adapts to the PCBA transmission welding of single side component, for two face elements
The PCBA of device can not be adapted to, and PCBA is pushed up caused by the component when PCBA welding of two sides component on bottom surface is interfered with guipure
Face welding process is not horizontal, and hidden danger is brought to welding quality.
Invention content
Present invention place in view of the deficiency of the prior art, provides a kind of accurate positioning, transmitting reliability, speed
Fast consistency is high, and sliding rail support easy to operate holds formula pcb board reflow welding stove auxiliary transmission system.
The present invention solves the deficiency of existing hot air reflow soldering stove transmission mode using following design scheme：A kind of sliding rail support is held
Formula pcb board reflow welding stove auxiliary transmission system, there are one the sliding rail delivery framework constituted using two lateral connector bars, features to exist for tool
In：It is parallel above and below the rectangle sliding rail connected by two lateral connector bars, and it is formed with transversely perforative sliding-rail groove, at least three rectangles
Slide bar is slided and is located in above-mentioned sliding-rail groove by locking sliding block and hand-tight screw, every rectangle slide bar by both ends rectangle sliding rail
Longitudinal surface be formed with inverted T-shaped groove, the rectangular shaped slider of positioning printing board PCB A, each rectangle are equipped in inverted T-shaped groove
Sliding block is formed with the tray that support holds pcb board, and rectangular shaped slider is slided along inverted T-shaped groove, can quickly slide and be combined into needed for pcb board
Support backing formula, the combination that at least four rectangular shaped sliders and tray are constituted is all made of hand-tight screw by pcb board locking positioning two
On two parallel rectangle slide bars.
The present invention has the advantages that compared to existing tranmission techniques：
Accurate positioning, transmitting reliability.There are one the sliding rail delivery frameworks constituted using two lateral connector bars using tool by the present invention, lead to
It crosses the sliding rail of Parallel Rectangular up and down of two lateral connector bars connection and is formed with transversely perforative sliding-rail groove, it will at least three rectangle slide bars
It is slided by both ends rectangle sliding rail and is located in above-mentioned sliding-rail groove by locking sliding block and hand-tight screw and formed sliding rail support and hold formula PCB
Plate reflow welding stove transfer structure is formed in inverted T-shaped groove and inverted T-shaped groove to be equipped with using the longitudinal surface of every rectangle slide bar and determine
The rectangular shaped slider and tray of position printing board PCB A, quick sliding positioning and locking support hold PCB, can ensure rectangle slide bar, square
Shape sliding block group slides freely, then the graduated scale by being formed on sliding rail, rectangle slide bar, can quickly slide and be combined into PCB
Support backing formula needed for plate, targetedly slides into pcb board components' placement blank space by rectangular shaped slider and tray, avoids holding in the palm
Block is interfered with device, prevents device damaged, accurate positioning, transmitting reliability.Solves the rail of existing reflow welding stove conveyer system
Road pin or guipure easily collide with component interference, the unhorizontal problem in damage component, PCBA board face.
The fast consistency of speed is high, easy to operate.The group that the present invention is constituted using at least four rectangular shaped sliders and tray
Conjunction is all made of hand-tight screw by pcb board locking positioning on rectangle slide bar parallel two-by-two, slidingtype band tray rectangular shaped slider group
Can be according to pcb board reverse side device layout situation, using hand-tight screw lock rectangular shaped slider group, hand-tight screw is using bullet, plain cushion
Locking measures only need to can be locked hand-tight screw-driving, rectangle when rectangle slide bar, rectangular shaped slider group location determination
Slide bar, the locking of rectangular shaped slider group are quick and convenient.After rectangular shaped slider is locked, tray top surface sink, pcb board be limited at tray it
Between, ensure that it not will produce in orbit transports and horizontally slip, plank sliding is avoided to influence device welding quality.Cantilever tray formula
Structure does not interfere, more on reflow welding stove chain type track after not only ensure that transmission welding support PCB with up/down sluice gate
It is essential that PCB transmission welding process levels are in position among equipment up/down heating zone, the two sides PCB thermally equivalent
Prevent to deform；In addition different trays can be selected according to sketch plate specification, for special-shaped pcb board to rectangular shaped slider group support
Block carries out series specification design, and tray four-point supporting support holds pcb board, ensures that the plank reverse side overwhelming majority is exposed outside so that PCB
When onboard transmission welding, hot wind directly blows leaching pcb board under reflow welding stove, ensures the heated abundance of reverse side.A set of auxiliary transport mechanism
Three rectangle slide bars and several rectangular shaped slider groups are configured, can once hold in the palm and hold several piece pcb board, improves primary transmission welding production capacity.This hair
Bright to set transport mechanism connecting rod to cantilever support block structure, tray carry both ensures mechanism height on brazier chain type track
Meet sluice gate limit require, and make pcb board positive and negative it is closely located to brazier up-and-down hot wind area, guarantee pcb board positive and negative by
It is hot uniform.It solves existing reflow welding stove chain type track conveyer system and can not transmit sketch plate, size is less than interorbital away from lower limit
The small size plate and chain type track pin of value easily collide with printed board periphery component interference the problem of and net belt type
Component when the PCBA welding of conveyer system transmission two sides component on bottom surface causes the top surfaces PCBA to weld with guipure interference
The unhorizontal problem of journey.
It is light-weight.The present invention manufactures transport mechanism metal structure using common duralumin material, this strength of materials is larger, energy
It is enough subjected to nearly 300 DEG C of high temperature in stove, structure is indeformable after a large amount of reuses.Balladeur train, rectangle slide bar use inner groovy sliding rail
Design plays fairly obvious weight loss effect, while connecting rod is designed as engraved structure, is ensureing the same of overall construction intensity
When also function to weight loss effect.Entire mechanism gross weight is 0.35Kg, very light, is suitable for artificial frequent operation.
The present invention is directed to high density PCB of the component from plate Edge Distance ＜ 5mm, using rectangular shaped slider and tray group
The transport mechanism of quick sliding positioning and locking, slip band tray rectangular shaped slider group can be avoided according to printed board device layout situation
The component closer from plate Edge Distance is laid, and is realized to support printed board and be transmitted；To rectangular shaped slider group tray system
Row specifications design can select different trays to realize that the support to special-shaped pcb board is transmitted according to sketch plate specification, and sunk type is hung
Tray top surface is carried to sink to carry the biography of all types of sketch plates, small size plate and device high density PCB closer from edges of boards edge
Welding is sent, it is good to the transmission versatility of all types of printed boards.
Description of the drawings
Fig. 1 is the organigram that sliding rail support of the present invention holds formula pcb board reflow welding stove conveyer system.
In figure：1 rectangle sliding rail one, 2 locking sliding blocks, 3 rectangular shaped sliders, 4 rectangle slide bars, 5 connecting rods, 6 trays, 7PCB plates, 8
Hand-tight screw, 9 rectangle sliding rails two.
Specific implementation mode
In the embodiment described below, a kind of sliding rail support holds formula pcb board reflow welding stove auxiliary transmission system, and there are one tools
The sliding rail delivery framework constituted using two lateral connector bars 5.The rectangle sliding rail one that sliding rail delivery framework is connected by two lateral connector bars 5
1 is parallel with about 2 10 rectangle sliding rail, and is formed with transversely perforative sliding-rail groove, and at least three rectangle slide bars 4 pass through two end moments
Shape sliding rail is slided and is located in above-mentioned sliding-rail groove by locking sliding block 2 and hand-tight screw 8, and the longitudinal surface of rectangle slide bar is formed with down T
Connected in star, the rectangular shaped slider 3 of positioning printing board PCB A is equipped in inverted T-shaped groove, and each rectangular shaped slider 3 is formed with support and holds
The tray 6 of pcb board 7, rectangular shaped slider are slided along inverted T-shaped groove, can quickly slide the support backing being combined into needed for pcb board 7
Formula, at least four rectangular shaped sliders and the combination that tray is constituted are all made of hand-tight screw 8 by 7 locking positioning of pcb board parallel two-by-two
Rectangle slide bar on.Finally, then auxiliary transport mechanism is placed on the chain type track of SMT braziers to transmit by reflow welding stove and is
System transmission welding.
Rectangular shaped slider and tray sliding positioning and locking support hold PCB, the graduated scale being formed on sliding rail, rectangle slide bar, quickly
Sliding is combined into the support backing formula needed for pcb board.
After rectangular shaped slider is locked, tray top surface sinks, and pcb board is limited between tray.
Above-described is only the preferred embodiment of the present invention.It should be pointed out that coming for those of ordinary skill in the art
Say, without departing from the principle of the present invention, several modifications and improvements can also be made, for example, can by rectangular shaped slider and
Rectangle Slide bar structure material is modified, these alterations and modifications should be regarded as belonging to the scope of protection of the present invention.
Claims (7)
1. a kind of sliding rail support holds formula pcb board reflow welding stove auxiliary transmission system, there are one the cunnings constituted using two lateral connector bars for tool
Rail delivery framework, it is characterised in that：It is parallel above and below the rectangle sliding rail connected by two lateral connector bars, and be formed with transversely perforative
Sliding-rail groove, at least three rectangle slide bars are slided by both ends rectangle sliding rail and are located in above-mentioned cunning by locking sliding block and hand-tight screw
In track slot, the longitudinal surface of every rectangle slide bar is formed with inverted T-shaped groove, and positioning printing board PCB A is equipped in inverted T-shaped groove
Rectangular shaped slider, every rectangular shaped slider is formed with support and holds the tray of pcb board, and rectangular shaped slider is slided along inverted T-shaped groove, can be quick
Sliding is combined into the support backing formula needed for pcb board, and the combination that at least four rectangular shaped sliders and tray are constituted is all made of hand-tight screw
By pcb board locking positioning on rectangle slide bar parallel two-by-two.
2. sliding rail support as described in claim 1 holds formula pcb board reflow welding stove auxiliary transmission system, it is characterised in that：Rectangle is slided
Block and tray sliding positioning and locking support hold PCB, the graduated scale being formed on rectangle sliding rail, rectangle slide bar, and quick sliding is combined into
Support backing formula needed for pcb board.
3. sliding rail support as described in claim 1 holds formula pcb board reflow welding stove auxiliary transmission system, it is characterised in that：Work as rectangle
After slider locking, tray top surface sinks, and pcb board is limited between tray.
4. sliding rail support as described in claim 1 holds formula pcb board reflow welding stove auxiliary transmission system, it is characterised in that：Conveyer
Structure connecting rod is set as cantilever support block structure, and tray carry is on brazier chain type track.
5. sliding rail support as described in claim 1 holds formula pcb board reflow welding stove auxiliary transmission system, it is characterised in that：Tray four
Point supporting bracket holds pcb board.
6. sliding rail support as described in claim 1 holds formula pcb board reflow welding stove auxiliary transmission system, it is characterised in that：Connecting rod
It is designed as engraved structure.
7. sliding rail support as described in claim 1 holds formula pcb board reflow welding stove auxiliary transmission system, it is characterised in that：Sunk type
Carry tray top surface sinks to carry all types of sketch plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810253796.XA CN108495483A (en) | 2018-03-26 | 2018-03-26 | Sliding rail support holds formula pcb board reflow welding stove auxiliary transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810253796.XA CN108495483A (en) | 2018-03-26 | 2018-03-26 | Sliding rail support holds formula pcb board reflow welding stove auxiliary transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108495483A true CN108495483A (en) | 2018-09-04 |
Family
ID=63337969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810253796.XA Pending CN108495483A (en) | 2018-03-26 | 2018-03-26 | Sliding rail support holds formula pcb board reflow welding stove auxiliary transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108495483A (en) |
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| CN208159005U (en) * | 2018-03-26 | 2018-11-27 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Pcb board reflow welding furnace transmission support is held |
-
2018
- 2018-03-26 CN CN201810253796.XA patent/CN108495483A/en active Pending
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|---|---|---|---|---|
| CN2580727Y (en) * | 2002-11-08 | 2003-10-15 | 华硕电脑股份有限公司 | Two edge adjustable type circuit board frame clamp |
| CN2794120Y (en) * | 2005-05-12 | 2006-07-05 | 上海环达计算机科技有限公司 | Printing circuit board carrier for tin coater |
| CN2874487Y (en) * | 2005-07-25 | 2007-02-28 | 鸿富锦精密工业（深圳）有限公司 | General carrier for printed circuit board |
| TWM282458U (en) * | 2005-08-08 | 2005-12-01 | Hon Hai Prec Ind Co Ltd | Flexible holder for printed circuit boards |
| CN201115024Y (en) * | 2007-09-28 | 2008-09-10 | 佛山市顺德区顺达电脑厂有限公司 | Over tin furnace tool |
| CN102476231A (en) * | 2010-11-26 | 2012-05-30 | 深圳市劲拓自动化设备股份有限公司 | Transmission structure with double guide rails for reflow soldering and reflow soldering machine with double guide rails |
| CN103801792A (en) * | 2012-11-12 | 2014-05-21 | 台达电子电源(东莞)有限公司 | Spray machine |
| CN204171599U (en) * | 2014-10-21 | 2015-02-25 | 山东鲁能智能技术有限公司 | A kind of fixture for preventing the soldering of printed boards of different size to be out of shape |
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