CN112222069A - Condensation recovery unit and online PCBA cleaning machine of PCBA cleaning machine - Google Patents
Condensation recovery unit and online PCBA cleaning machine of PCBA cleaning machine Download PDFInfo
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- CN112222069A CN112222069A CN202011139232.7A CN202011139232A CN112222069A CN 112222069 A CN112222069 A CN 112222069A CN 202011139232 A CN202011139232 A CN 202011139232A CN 112222069 A CN112222069 A CN 112222069A
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- pcba
- cleaning
- cleaning machine
- process section
- cold water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a condensation recovery device of a PCBA cleaning machine and the online PCBA cleaning machine, wherein the condensation recovery device comprises an air suction pipeline main body, more than one cooling pipe assembly and a plurality of partition plates; the air draft pipeline main part includes more than one air pipe, air pipe one termination PCBA cleaning machine washs the section inner chamber, another termination PCBA cleaning machine air exit, be equipped with in the air pipe cooling tube subassembly, the cooling tube subassembly includes more than one cooling tube, every the cooling tube subassembly is intake through the external water supply installation of a cold water import to discharge through a cold water outlet. The invention adopts a new condensation mode, can obviously improve the condensation effect and can improve the condensation recovery rate of the solvent.
Description
Technical Field
The invention relates to the field of PCBA cleaning equipment, in particular to a condensation recovery device of a PCBA cleaning machine and an online PCBA cleaning machine.
Background
In the manufacturing process of the PCBA, solder paste, solder wires and the like are needed for welding, residues generated by soldering flux in the welding process can pollute the PCBA surface and are main pollutants, the residues not only affect the attractiveness, but also seriously affect the quality of the PCBA, therefore, the cleaning of the PCBA is very important, and for a cleaning process of a full-automatic online cleaning machine, the cleaning machine can thoroughly and effectively clean organic and inorganic pollutants such as rosin soldering flux, water-soluble soldering flux, cleaning-free soldering flux and the like which are remained on the surface of the PCBA welded by the SMT/THT. The automatic cleaning device is suitable for cleaning PCBA in large batches, a safety automatic cleaning device is arranged in an electric production line, and all processes of chemical cleaning (or water-based cleaning), water-based rinsing and drying are completed on line through different cavities.
Wherein, in the chemical cleaning process section, a solution with a certain concentration is prepared by using a water-based cleaning agent and pure water for cleaning. Most solvents are low molecular weight organic compounds, and all the solvents have strong volatility. In the process of cleaning the product, the product can be used only by heating the product, so that a large amount of solvent forms steam and is volatilized into the air; because the cleaning agent is easy to cause potential safety hazards to the environment and personal safety, and the traditional condensing mode has poor effect.
Disclosure of Invention
Aiming at more than one problem in the prior art, the invention provides a condensation recovery device of a PCBA cleaning machine, which has the following specific scheme:
comprises an air draft pipeline main body, more than one cooling pipe assembly and a plurality of clapboards; the air draft pipeline main part includes more than one air pipe, air pipe one termination PCBA cleaning machine washs the section inner chamber, another termination PCBA cleaning machine air exit, be equipped with in the air pipe cooling tube subassembly, the cooling tube subassembly includes more than one cooling tube, every the cooling tube subassembly is intake through the external water supply installation of a cold water import to discharge through a cold water outlet.
Preferably, the number of the ventilating ducts is two, the two ventilating ducts are not communicated with each other, and when the ventilating ducts are used, the ventilating ducts are respectively connected with the front end and the rear end of an inner cavity of a cleaning process section of the PCBA cleaning machine and are respectively used for condensing steam overflowing from the two ends of the cleaning process section and then discharging the steam.
Preferably, the cooling pipe is designed in a serpentine shape, and a plurality of heat exchange fins are further arranged on the cooling pipe.
Preferably, the PCBA cleaning machine has a plurality of baffles arranged at the corners of the cooling duct in the ventilation duct for forcing the steam entering the ventilation duct to flow in a serpentine shape along the cooling duct.
Preferably, the air draft pipeline main body is provided with a water inlet box and a water outlet box which correspond to the cold water inlet and the cold water outlet and are respectively used for connecting the cold water inlet and the cold water outlet with external equipment,
specifically, one water inlet box is simultaneously communicated with two cold water inlets, and one water outlet box is simultaneously communicated with two cold water outlets.
The condensation recovery device of the PCBA cleaning machine provided by the invention has the following beneficial effects:
1. the novel condensation mode is adopted, and the method is applied to PCBA cleaning equipment, so that the condensation effect can be obviously improved, and the condensation recovery rate of the solvent can be improved;
2. in the preferred scheme, the two ventilating pipelines respectively condense the steam overflowing from the two ends, so that the effect is better;
3. in the preferred scheme, the arrangement of the heat exchange plates can also slow down the flowing speed of gas, reduce the flow speed and enable the steam to be in contact with the heat exchange pipe for a longer time, and meanwhile, the heat exchange plates also increase the condensation area and enable more steam to be liquefied into liquid;
4. in the preferred scheme, the setting of a plurality of baffles cooperates snakelike cooling tube subassembly, forms snakelike cooling channel, improves the condensation effect.
The invention also provides an online PCBA cleaning machine, which has the following specific scheme:
the device comprises the condensation recovery device, a rack, a PCBA conveyor belt, a cleaning process section and a cleaning tank body, wherein the PCBA conveyor belt, the cleaning process section and the cleaning tank body are arranged on the rack; the PCBA conveyor belt is used for driving PCBA plates to be cleaned to enter the cleaning process section from the front end of the online PCBA cleaning machine and penetrate through the cleaning process section, and then cleaning work is completed; the condensation recovery device of the PCBA cleaning machine spans the whole cleaning process section, is communicated with the front end and the rear end of the inner cavity of the cleaning process section, and is used for carrying out condensation recovery treatment on steam overflowing from the cleaning process section; the cleaning tank body is arranged below the cleaning process section and used for containing cleaning liquid.
Preferably, the cleaning process section comprises a pre-cleaning cavity, a cleaning cavity and a wind cutting cavity which are sequentially arranged from front to back; a plurality of spray bars are arranged in the pre-cleaning cavity and the cleaning cavity, and a wind cutting device is arranged in the wind cutting cavity;
the online PCBA cleaning machine also comprises a cleaning pump for conveying cleaning liquid in the cleaning tank to the spray bar.
Preferably, the rack is provided with an air outlet connected with the ventilation pipeline for discharging the steam after condensation treatment.
Preferably, a vapor-liquid filter screen is arranged below the air outlet.
The online PCBA cleaning machine provided by the invention has the following beneficial effects:
1. by adopting a new condensation mode, the condensation effect can be obviously improved, the condensation recovery rate of the solvent is higher, the production cost is reduced, and the treatment difficulty of waste gas can be reduced;
2. in the preferred scheme, the vapor-liquid filter screen can further improve the recovery rate of the solvent.
Drawings
FIG. 1 is a schematic perspective view of a condensation recycling apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of another embodiment of a condensation recycling apparatus;
FIG. 3 is a schematic partial cross-sectional view of a condensate recovery apparatus;
FIG. 4 is a perspective view of the cooling tube assembly and the baffle plate;
FIG. 5 is a schematic diagram of a front view of an online PCBA cleaning machine in accordance with an embodiment of the present invention;
FIG. 6 is a schematic diagram of a top view of an in-line PCBA cleaning machine in accordance with an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the following figures and specific examples. In the description of the present embodiment, the terms "front", "rear", "upper", "lower", "left", "right", and the like are used in the orientations and positional relationships shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Referring to fig. 1, the present embodiment provides a condensation recycling device of a PCBA cleaning machine, which includes an air draft duct main body 11, two cooling tube assemblies 12, and a plurality of partition plates 13; the air suction pipeline main body 11 comprises a left air pipeline (111) and a right air pipeline (112), the two air pipelines (111, 112) are internally provided with one cooling pipe assembly 12 respectively, the cooling pipe assembly 12 comprises a plurality of cooling pipes 121, each cooling pipe assembly 12 is externally connected with a water supply device through a cold water inlet 122 and is discharged through a cold water outlet 123, specifically, the air suction pipeline main body 11 is provided with a water inlet box 113 and a water outlet box 114 which correspond to the cold water inlet 122 and the cold water outlet 123 and are respectively used for connecting the cold water inlet 122 and the cold water outlet 123 with external equipment, more specifically, one water inlet box 113 is simultaneously communicated with the two cold water inlets 122, and one water outlet box 114 is simultaneously communicated with the two cold water outlets 123; two ventilation pipe (111, 112) do not communicate with each other, during the application, left ventilation pipe 111 front port 1111 and PCBA cleaning machine cleaning technology section inner chamber front end connect through, back port 1112 connects the air exit of PCBA cleaning machine, ventilation pipe 112 back port 1122 on right side and PCBA cleaning technology section inner chamber back end connect through, preceding port 1121 connects the air exit of PCBA cleaning machine.
The cooling pipe 121 is designed in a serpentine shape and is provided with a plurality of heat exchange plates 1211; the partition plate 13 is arranged at the turn of the cooling pipe 121 in the ventilation ducts (111, 112) and used for forcing the steam entering the ventilation ducts (111, 112) to flow in a snake shape along the cooling pipe 121, so that the heat exchange efficiency of the steam and the cooling pipe 121 is improved, and the condensation effect is further improved.
The condensation recovery unit of PCBA cleaning machine that this embodiment provided has following advantage:
1. the novel condensation mode is adopted, and the method is applied to PCBA cleaning equipment, so that the condensation effect can be obviously improved, and the condensation recovery rate of the solvent can be improved;
2. the two ventilating pipelines respectively condense the steam overflowing from the two ends, so that the effect is better;
3. the arrangement of the heat exchange plates can also slow down the flowing speed of gas, reduce the flow speed and enable the steam to be in contact with the heat exchange pipe for a longer time, and meanwhile, the heat exchange plates also increase the condensation area and enable more steam to be liquefied into liquid;
4. the setting of a plurality of baffles cooperates snakelike cooling tube subassembly, forms snakelike cooling channel, improves the condensation effect.
Referring to fig. 5 to 6, the embodiment further provides an online PCBA cleaning machine, which includes the above condensation recycling device, and further includes a rack 2, and a PCBA conveyor belt 8, a cleaning process section, and a cleaning tank 3, which are disposed on the rack 2; the PCBA conveyor belt is used for driving PCBA plates to be cleaned to enter the cleaning process section from the front end of the online PCBA cleaning machine and penetrate through the cleaning process section, and then cleaning work is completed; the condensation recovery device is arranged on the whole cleaning process section in a spanning mode, communicated with the front end and the rear end of an inner cavity of the cleaning process section and used for carrying out condensation recovery treatment on steam overflowing from the cleaning process section; the cleaning tank body 3 is arranged below the cleaning process section and used for containing cleaning liquid.
The cleaning process section comprises a pre-cleaning cavity 4, a cleaning cavity 5 and a wind cutting cavity 6 which are sequentially arranged from front to back; a plurality of spray bars 7 are arranged in the pre-cleaning cavity 4 and the cleaning cavity 5, and a wind cutting device is arranged in the wind cutting cavity 6. The online PCBA washer also includes a washer pump 9 for delivering the cleaning liquid within the sink 3 to the spray bar 7.
Two air outlets 21 are arranged on the frame 2 and are respectively connected with two ventilating pipelines (111, 112), and a vapor-liquid filter screen 22 is arranged below the air outlets 21; preferably, the diameter of the vapor-liquid filter screen 22 is less than 5 mm; more preferably, the diameter of the vapor-liquid filter screen 22 is 0.3mm, and the size of the holes is 4mm by 5 mm; in application, when liquid foam collides with the stainless steel wire, the liquid foam can adhere to the filaments of the vapor-liquid filter screen 22, and then the liquid foam on the filaments forms larger liquid droplets by continuously gathering to form larger liquid foam flowing to the interweaving position of the filaments along the filaments until the self gravity of the liquid foam exceeds the resultant force of the buoyancy and the liquid surface tension of the gas rising, and the liquid droplets are separated and fall to the condensation recovery device.
The invention provides an online PCBA cleaning machine working process and a principle:
when the cleaning conditions of the cleaning machine reach set values, the products can be cleaned, firstly the PCBA conveyor belt 8 starts to run, the products to be cleaned are placed on the PCBA conveyor belt 8, and the products are relatively static on the PCBA conveyor belt 8 and are conveyed to the corresponding process section for cleaning. Secondly the scavenging pump 9 starts, transports the washing liquid in the cleaning tank body 3 to spray lance 7 in, is equipped with the nozzle blowout of arranging according to certain law on the spray lance 7, washs the operation to the product, owing to spray to be stressful, can form a large amount of steam in the cavity, then steam can follow both ends are overflowed around the cleaning technology section, follow front end to rear end convulsions from cleaning technology section front end exhaust steam, process the vapour and liquid filter screen 22 under air pipe 111 and rear end air exit 21 discharges from rear end air exit 21 again, follows the exhaust steam of cleaning technology section rear end and follow back to front convulsions, passes through the vapour and liquid filter screen 22 with under air pipe 112 and the front end air exit 21 discharges from front end air exit 21 again.
The PCBA board cleaning device provided by the invention has the following advantages:
1. by adopting a new condensation mode, the condensation effect can be obviously improved, the condensation recovery rate of the solvent is higher, the production cost is reduced, and the treatment difficulty of waste gas can be reduced;
2. in the preferred scheme, the vapor-liquid filter screen can further improve the recovery rate of the solvent.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The utility model provides a condensation recovery unit of PCBA cleaning machine which characterized in that: comprises an air draft pipeline main body, more than one cooling pipe assembly and a plurality of clapboards; the air draft pipeline main part includes more than one air pipe, air pipe one termination PCBA cleaning machine washs the section inner chamber, another termination PCBA cleaning machine air exit, be equipped with in the air pipe cooling tube subassembly, the cooling tube subassembly includes more than one cooling tube, every the cooling tube subassembly is intake through the external water supply installation of a cold water import to discharge through a cold water outlet.
2. A condensate recovery device for a PCBA washer according to claim 1, wherein: the number of the ventilating ducts is two, the two ventilating ducts are not communicated with each other, and when the ventilating ducts are used, the ventilating ducts are respectively connected with the front end and the rear end of an inner cavity of a cleaning process section of the PCBA cleaning machine and are respectively used for condensing steam overflowing from the two ends of the cleaning process section and then discharging the steam.
3. A condensate recovery device for a PCBA washer according to claim 1 or 2, wherein: the cooling pipe is in a snake-shaped design, and a plurality of heat exchange fins are further arranged on the cooling pipe.
4. A condensate recovery device for a PCBA washer according to claim 3, wherein: this PCBA cleaning machine's a plurality of baffles of condensation recovery unit, the baffle in locate the cooling tube turn in the air pipe for the steam that forces to get into air pipe becomes snakelike flow along the cooling tube.
5. A condensate recovery device for a PCBA washer according to claim 2, wherein: the air suction pipeline main body is provided with a water inlet box and a water outlet box which correspond to the cold water inlet and the cold water outlet and are respectively used for connecting the cold water inlet and the cold water outlet with external equipment,
specifically, one water inlet box is simultaneously communicated with two cold water inlets, and one water outlet box is simultaneously communicated with two cold water outlets.
6. The utility model provides an online PCBA cleaning machine which characterized in that: a condensation recovery device comprising the PCBA cleaning machine as recited in claim 2, further comprising a frame, and a PCBA conveyor belt, a cleaning process section, and a cleaning tank body arranged on the frame; the PCBA conveyor belt is used for driving PCBA plates to be cleaned to enter the cleaning process section from the front end of the online PCBA cleaning machine and penetrate through the cleaning process section, and then cleaning work is completed; the condensation recovery device of the PCBA cleaning machine spans the whole cleaning process section, is communicated with the front end and the rear end of the inner cavity of the cleaning process section, and is used for carrying out condensation recovery treatment on steam overflowing from the cleaning process section; the cleaning tank body is arranged below the cleaning process section and used for containing cleaning liquid.
7. The online PCBA cleaning machine as recited in claim 6, wherein: the cleaning process section comprises a pre-cleaning cavity, a cleaning cavity and a wind cutting cavity which are sequentially arranged from front to back; a plurality of spray bars are arranged in the pre-cleaning cavity and the cleaning cavity, and a wind cutting device is arranged in the wind cutting cavity;
the online PCBA cleaning machine also comprises a cleaning pump for conveying cleaning liquid in the cleaning tank to the spray bar.
8. The online PCBA cleaning machine as recited in claim 7, wherein: the frame is provided with an air outlet connected with the ventilating duct for discharging the steam after condensation treatment.
9. The online PCBA cleaning machine as recited in claim 8, wherein: and a vapor-liquid filter screen is arranged below the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011139232.7A CN112222069A (en) | 2020-10-22 | 2020-10-22 | Condensation recovery unit and online PCBA cleaning machine of PCBA cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011139232.7A CN112222069A (en) | 2020-10-22 | 2020-10-22 | Condensation recovery unit and online PCBA cleaning machine of PCBA cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112222069A true CN112222069A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011139232.7A Pending CN112222069A (en) | 2020-10-22 | 2020-10-22 | Condensation recovery unit and online PCBA cleaning machine of PCBA cleaning machine |
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| CN (1) | CN112222069A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070158A (en) * | 2022-07-12 | 2022-09-20 | 东莞市洲际技术有限公司 | Soldering flux recovery device and recovery method |
-
2020
- 2020-10-22 CN CN202011139232.7A patent/CN112222069A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070158A (en) * | 2022-07-12 | 2022-09-20 | 东莞市洲际技术有限公司 | Soldering flux recovery device and recovery method |
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