CN112536258A - Integrated circuit board recycling and cleaning equipment - Google Patents
Integrated circuit board recycling and cleaning equipment Download PDFInfo
- Publication number
- CN112536258A CN112536258A CN202011228198.0A CN202011228198A CN112536258A CN 112536258 A CN112536258 A CN 112536258A CN 202011228198 A CN202011228198 A CN 202011228198A CN 112536258 A CN112536258 A CN 112536258A
- Authority
- CN
- China
- Prior art keywords
- tin
- circuit board
- workbench
- top end
- plate
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 68
- 238000004064 recycling Methods 0.000 title claims abstract description 18
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 188
- 238000005476 soldering Methods 0.000 claims abstract description 69
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 238000007790 scraping Methods 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 9
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 9
- 229910052721 tungsten Inorganic materials 0.000 claims description 9
- 239000010937 tungsten Substances 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 33
- 229910000679 solder Inorganic materials 0.000 description 17
- 230000001680 brushing effect Effects 0.000 description 11
- 238000003466 welding Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 8
- 239000012535 impurity Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000005028 tinplate Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0071—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating
Landscapes
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention provides integrated circuit board recycling and cleaning equipment, which relates to the technical field of circuit production and processing and comprises a workbench, wherein the workbench is arranged in a square plate structure, clamping assemblies are arranged at four corners at the top end of the workbench at equal intervals, a through square hole is formed in the middle of each clamping assembly, the circuit board is horizontally placed on the workbench, the four corners of the circuit board are clamped and fixed at the top end of the workbench through the clamping assemblies, two threaded lead screws are respectively arranged on the front side and the rear side of the workbench, and a first detin walking device is arranged on one side of the top end of the workbench; according to the first tin removing walking device, thrust is generated through rotation of the threaded lead screw, so that the first tin removing walking device moves forwards on the surface of the circuit board at a constant speed, and in the process that the first tin removing walking device moves forwards on the surface of the circuit board, soldering tin to be shaved in front of the tin shoveling plate is heated through the plurality of hot air guns arranged at equal intervals, so that the soldering tin is softened.
Description
Technical Field
The invention relates to the technical field of circuit production and processing, in particular to integrated circuit board recycling and cleaning equipment.
Background
The circuit board has the name: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout. The circuit board can be called as a printed circuit board or a printed circuit board, and the soldering tin on the circuit board is cleaned in two ways, one is to clean the soldering tin of the original circuit board, the other is to remove the redundant welding slag after the soldering tin work is finished,
at present, patent No. CN201922028504.5 discloses a circuit board detinning apparatus, which belongs to the field of waste circuit board recovery processing; the technical scheme is characterized by comprising a supporting seat, a heating groove arranged on the supporting seat, a tin blowing assembly and a conveying assembly; the liquid tin is filled in the heating groove, the heating groove is used for always heating the liquid tin, the conveying assembly comprises a slide rail fixedly connected to the supporting seat and a vertical slide rail assembly capable of sliding along the slide rail, and the length direction of the slide rail is the same as that of the heating groove; the vertical sliding rail assembly is provided with a rotating cylinder which can move up and down along the vertical sliding rail assembly, and the tail end of a piston rod of the rotating cylinder is fixedly connected with a placing rack for placing a waste circuit board. The utility model provides a common detin mode lead to the problem of electrical components damage on the circuit board easily, reached and to have made things convenient for detin and can not cause the damage to electrical components, improve the effect that electrical components retrieved and recycled.
The circuit board detinning equipment disclosed in the patent still has some defects in practical use, and the specific defects are as follows:
one, current, when having welded large tracts of land soldering tin to the circuit board surface, mainly make soldering tin desolder from the circuit board surface through welder spot welding to the circuit board surface, this complex operation, and be difficult to follow the circuit board surface with soldering tin and remove cleanly, and to soldering tin formation liquid after melting, permeate the micropore on circuit board surface easily in, cause the micropore to block up, be difficult to detach totally with soldering tin from the circuit board surface, influence the recycle of circuit board.
Disclosure of Invention
The invention aims to provide integrated circuit board recycling and cleaning equipment, and solves the technical problems that when large-area soldering tin is welded on the surface of a circuit board, the soldering tin is welded on the surface of the circuit board through spot welding by a welding gun so as to be desoldered from the surface of the circuit board, the operation is complicated, the soldering tin is difficult to remove from the surface of the circuit board, the soldering tin forms liquid after being melted, the liquid is easy to permeate into micropores on the surface of the circuit board, the micropores are blocked, the soldering tin is difficult to remove from the surface of the circuit board, and the recycling of the circuit board is influenced.
The technical problem to be solved by the invention is realized by adopting the following technical scheme: an integrated circuit board recovery cleaning device which removes soldering tin existing on the surface of an integrated circuit board comprises a workbench, the worktable is of a square plate structure, the four corners at the top end of the worktable are provided with clamping components at equal intervals, the middle parts of the four clamping components are positioned in the middle part of the worktable and are provided with through square holes, the circuit board is horizontally placed on the worktable, the four corners of the circuit board are clamped and fixed at the top end of the worktable by the clamping components, two threaded screw rods are respectively arranged at the front side and the rear side of the workbench, a first detinning walking device is arranged at one side of the top end of the workbench, the front side and the rear side of the first detin walking device are symmetrically provided with slide blocks, the middle part of each slide block at each side is provided with a through threaded hole, the threaded hole in the middle of the sliding block is arranged on one of the threaded screw rods on each side in a threaded matching mode;
a abdicating groove is formed in one side of the bottom end of the workbench, a second tin removing walking device is installed in the abdicating groove in a sliding fit mode, sliding blocks are symmetrically arranged on the front side and the rear side of the second tin removing walking device, and threaded holes in the middles of the sliding blocks on the front side and the rear side of the second tin removing walking device are installed on the other corresponding threaded screw rod in a threaded fit mode;
one side of the top end of the workbench is rotatably connected with a linkage rod through a bearing, the linkage rod is in staggered rotary connection with the top end of the threaded screw rod through bevel gears, a servo motor is fixedly arranged in the middle of the linkage rod and positioned at the top end of the workbench, gears extend outwards from the servo motor and are bevel gears, and the gears are rotatably connected with the linkage rod through bevel gear connection;
the anti-blocking type anti-blocking bench is characterized in that a hinged support is arranged on the other side of the bottom end of the workbench, a square plate-shaped ejector rod base is hinged to the hinged support, a plurality of anti-blocking ejector rods matched with circuit board micropores are arranged on the top end of the ejector rod base, an electromagnet is arranged on the bottom surface, located in the abdicating groove, of the bottom end of the workbench, and the top end of the ejector rod base is connected with the electromagnet.
As a preferred technical scheme of the invention, the clamping assembly comprises a pressing plate, a tension spring groove and a clamping opening, the lower clamping plate is arranged at the top end of the workbench, the tension spring groove is formed in the top end of the lower clamping plate, the pressing plate is arranged at the top end of the lower clamping plate, the tension spring is arranged at the bottom end of the pressing plate, the bottom end of the tension spring is fixed in the tension spring groove, the clamping opening is formed in the side wall of the lower clamping plate, and a notch matched with the outline of the circuit board is formed in the side edge of the lower clamping plate.
As a preferred technical scheme of the invention, the first tin removing walking device comprises a tin shoveling plate transversely arranged on the surface of the circuit board, a plurality of hot air guns are arranged above the tin shoveling plate in the advancing direction at equal intervals, the hot air guns blow hot air towards the surface of the circuit board in the advancing direction of the tin shoveling plate, a shoveling inclined surface is arranged at the top end of the tin shoveling plate, the shoveling inclined surface is the top surface in the advancing direction of the cleaning plate, a tin storage tank is arranged on the rear side of the shoveling inclined surface in the advancing direction of the tin shoveling plate, and a tin poking roller is fixedly arranged at the upper end of the shoveling inclined surface;
shovel tin board inside is provided with and is close to shovel inclined plane equidistant the laying and has heated the tungsten filament, it is netted to heat the tungsten filament and lay along the side sword on shovel tin board and the bottom surface equidistant on shovel inclined plane.
As a preferred technical scheme of the invention, the tin removing roller comprises supporting plates, movable scrapers, pointed scrapers, spring grooves and compression springs, the tin removing roller is of a cylindrical structure, the tin removing roller is driven to rotate by an independent motor, so that the tin removing roller rotates at the upper end of the advancing direction of a tin shoveling plate, square block-shaped supporting plates are arranged on the outer circular surface of the tin removing roller at equal intervals, the top end of each supporting plate is provided with the spring groove, the movable scrapers are embedded into the spring grooves in a sliding fit manner, the compression springs are arranged at the top ends of the movable scrapers embedded into the spring grooves in a sliding fit manner, the pointed scrapers are arranged at the bottom ends of the movable scrapers, and the pointed scrapers are inclined at 135 degrees at the movable scrapers.
As a preferred technical scheme of the invention, the bottom surface of the tip scraper is provided with extension scrapers, the extension scrapers are arranged in multiple rows, the heights of two adjacent rows of the extension scrapers are different, and the multiple rows of the extension scrapers are in an arc-shaped structure on the bottom surface of the tip scraper.
As a preferred technical scheme of the invention, a brushing cleaning plate is arranged towards the rear side of the advancing direction of the first tin removing walking device, the brushing cleaning plate is horizontally fixed, the brushing cleaning plate comprises a transmission groove and brushing cleaning bristles, the transmission groove is arranged at the bottom end of the brushing cleaning plate, the transmission groove is an annular groove at the bottom end of the brushing cleaning plate, a circularly rotating transmission chain is arranged in the transmission groove, the transmission chain is driven to rotate by the motor, the motor is fixedly arranged at the top end of the brushing cleaning plate, the brushing cleaning bristles are arranged at equal intervals at the bottom end of the transmission chain in the transmission groove, and the brushing cleaning bristles are driven to circularly rotate along the transmission groove by the motor.
As a preferred technical scheme of the invention, two rows of second supporting plates are arranged in the middle of the bottom end of the cleaning plate, a movable supporting rod is arranged at the bottom end of each second supporting plate, pressure springs are arranged between the movable supporting rods and the second supporting plates at equal intervals, and a scraping blade is arranged on the bottom surface of the side wall of each movable supporting rod facing the advancing direction of the first tin removing walking device and clings to the surface of the circuit board through the pressure springs.
As a preferable technical scheme of the invention, the bottom end of the movable supporting rod is provided with a piece of wiping sponge.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the circuit board is horizontally placed on the workbench, the middle part of the workbench is provided with a through square hole, so that the middle part of the circuit board is suspended, the ejector rod base hinged to the bottom of the bottom is attached to the bottom of the workbench, the anti-blocking ejector rod is matched to jack up upwards to block a plurality of micropores on the surface of the circuit board, so that soldering tin cannot permeate into the micropores of the circuit board when being heated and melted, the blockage of the micropores of the circuit board is avoided, four corners of the circuit board are clamped and fixed at the top end of the workbench through the clamping assembly, and the circuit board travels on the surface of the circuit board through the first detinning traveling device, the large area tin metal that persists on the circuit board surface of retrieving carries out the part and strikes off, walks on the surface of circuit board through first detin running gear, realizes removing tin to the large area tin metal that persists on whole circuit board surface to make the circuit board surface clean and tidy, the cyclic utilization of the circuit board of being convenient for.
Secondly, the first tin removing walking device generates thrust through the rotation of the threaded lead screw, so that the first tin removing walking device moves forwards on the surface of the circuit board at a constant speed, the first tin removing walking device heats soldering tin to be shaved in front of the tin shoveling plate through a plurality of hot air guns arranged at equal intervals in the process of moving forwards on the surface of the circuit board, the soldering tin is softened, the soldering tin is heated through the plurality of hot air guns arranged at equal intervals, hot air is concentrated, the wind power is high, the surface of the soldering tin is heated uniformly, the softened soldering tin is shaved into a tin storage tank through the tin shoveling plate, when the tin shoveling plate shaves, the soldering tin is heated through mesh-shaped tungsten wires arranged at equal intervals in the tin shoveling plate, the surface of the tin shoveling plate is heated uniformly, when the soldering tin touches the tin shoveling plate, the soldering tin is melted into a liquid state through the high temperature on the surface of the tin shoveling plate, and the soldering tin removing walking device, the soldering tin which is melted into liquid is pushed into the liquid storage tank to be stored, so that the soldering tin is separated from the surface of the circuit board, when the tin shoveling plate shovels tin on the surface of the circuit board, the anti-blocking ejector rod blocks micropores on the surface of the circuit board, the soldering tin is not easy to flow into the micropores to block the micropores after being melted into liquid, and the liquid soldering tin is prevented from flowing into the micropores to cause the soldering tin to be separated from the circuit board.
Thirdly, the soldering tin shoveling plate of the invention has an upward climbing slope when the soldering tin enters the tin storage tank through the inclined shoveling slope surface, the soldering tin shoveling plate rotates at a constant speed above the shoveling slope surface of the soldering tin shoveling plate through the tin poking roller, the soft soldering tin in front of the soldering tin shoveling plate is subjected to brake shoveling action downwards through the sharp-end scraper on the outer circular surface of the tin poking roller, the soft soldering tin is pushed to the upper part of the shoveling slope surface by the sharp-end scraper, the soldering tin is melted into liquid on the surface of the soldering tin shoveling plate through the high temperature of the surface of the soldering tin shoveling plate, the liquid soldering tin flows more smoothly on the surface of the shoveling slope surface, the liquid soldering tin is pushed into the tin storage tank through the attachment of the sharp-end scraper and the soldering tin is collected, the soldering tin is separated from the circuit board, and the recovery cleanness of the circuit board is improved, the clamping head, make the chuck scraper inseparable with the laminating of shovel inclined plane, reduce soldering tin liquid and run off, even the soldering tin liquid in the last layer chuck scraper on the shovel inclined plane is left downwards, the soldering tin liquid is by the tip scraper bearing of next floor, still can be pushed to in the tin storage tank, and then the completion is to the detinning of large tracts of land soldering tin and is handled.
And fourthly, multiple rows of extension scrapers are arranged on the bottom surface of the pointed end scraper, the heights of two adjacent rows of extension scrapers are different, and the multiple rows of extension scrapers are in an arc-shaped structure on the bottom surface of the pointed end scraper. Make the tip scraper when shovel tin plate surface slides, because the axis of dialling the tin roller is rotary motion along the tip scraper, and then make the tip scraper do the angle of elevation swing of certain law when shovel tin plate surface slides, extend the scraper through the multiseriate and compensate at the angle behind the tip scraper angle of elevation, when the welding liquid that makes the tip scraper promote flows downwards, extend the scraper through the multiseriate and do further bearing to the welding liquid, reduce the loss of welding liquid, improve the tin storage capacity of storing up the tin groove.
Fifthly, a cleaning brush plate is arranged at the rear side of the advancing direction of the first detinning walking device, the surface of the detinned circuit board is cleaned by cleaning bristles circularly rotating at the bottom end of the cleaning brush plate, the cleaning bristles are made of steel wires, so that impurity particles and dirt remained on the surface of the circuit board are cleaned and removed, two rows of scraping blades are arranged in the middle of the cleaning bristles, the scraping blades are tightly attached to the surface of the circuit board through a pressure spring, when the scraping blades advance in the first detinning walking device, the cleaning bristles are used for cleaning firstly, then the scraping blades are used for scraping hard impurity particles and dirt on the surface of the circuit board, after the scraping is finished, the cleaning bristles are used for cleaning, so that the rough edges raised on the surface of the circuit board are subjected to tail ending work after the detinning of the surface of the circuit board is finished, and the surface of the detinned circuit board is cleaner and tidier through three steps of cleaning, then scraping and cleaning firstly, the clean effect of detinning the surface of the circuit board is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic sectional view of the front view of the integrated circuit board recycling and cleaning apparatus of the present invention;
FIG. 2 is a schematic view of a front sectional view of an IC board mounted on an IC board recovery and cleaning apparatus according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic top view of the integrated circuit board recycling and cleaning apparatus of the present invention;
FIG. 5 is a partially enlarged view of the first and second detinning traveling devices at a point A in FIG. 2 for synchronously detinning the top and bottom ends of the circuit board according to the present disclosure;
FIG. 6 is a schematic view of a partial cross-sectional structure of the connection between the tin-poking roller and the shovel slope of the shovel plate according to the present invention;
FIG. 7 is an enlarged view of a portion of the structure of the cleaning plate at the rear side of the first tin removing walking device;
FIG. 8 is a schematic cross-sectional view of the movable screed of the present invention mounted in the support plate;
FIG. 9 is a schematic view of the bottom surface of the cleaning plate according to the present invention;
FIG. 10 is a schematic view of the construction of the extension blade 318 of the present invention on the underside of a pointed blade;
FIG. 11 is a schematic diagram of the structure of a job object of the present invention;
in the figure: 1. supporting leg, 2, workbench, 3, first detin walking device, 301, cleaning board, 302, motor, 303, sliding block, 305, servo motor, 306, gear, 307, linkage rod, 308, hot air gun, 309, tin poking roller, 310, tin shoveling board, 311, tin scraping knife, 312, shoveling inclined plane, 313, tin storage tank, 314, heating tungsten filament, 315, supporting board, 316, movable scraper, 317, tip scraper, 318, extending scraper, 319, cleaning hair, 320, second supporting board, 321, pressure spring, 322, movable supporting rod, 323, cleaning sponge, 324, scraping blade, 325, spring groove, 326, compression spring, 4, clamping component, 401, pressing board, 402, tension spring, 403, tension spring groove, 404, clamping mouth, 405, lower clamping board, 406, abdicating groove, 407, second detin walking device, 408, electromagnet, 5, screw rod, 6, anti-blocking rod, 7, 6, ejector rod, anti-blocking rod, 7, tin-stripping roller, tin-removing walking device, motor, 303, sliding block, 305, servo, A mandril base 8 and a hinged support.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described below by combining with the specific drawings, and it is to be noted that the embodiments and the features in the embodiments can be combined with each other in the application without conflict.
Please refer to fig. 1-11, which are schematic diagrams illustrating an overall structure of an integrated circuit board recycling and cleaning apparatus;
an integrated circuit board recycling and cleaning device which is used for removing soldering tin existing on the surface of an integrated circuit board comprises a workbench 2, wherein the workbench 2 is arranged to be a square plate structure, supporting legs 1 which are upright on the bottom surface of the workbench 2 are arranged at four corners at the bottom end of the workbench 2, clamping assemblies 4 are arranged at four corners at the top end of the workbench 2 at equal intervals, a through square hole is formed in the middle of the workbench 2 in the middle of each clamping assembly 4, the circuit board is horizontally placed on the workbench 2, the four corners of the circuit board are clamped and fixed at the top end of the workbench 2 through the clamping assemblies 4, two threaded lead screws 5 are respectively arranged at the front side and the rear side of the workbench 2, a first tin removing walking device 3 is arranged at one side of the top end of the workbench 2, sliding blocks 304 are symmetrically arranged at the front side and the rear side of the first, the threaded hole in the middle of the sliding block 304 is arranged on one of the threaded screw rods 5 on each side in a threaded matching mode;
a abdicating groove 406 is formed in one side of the bottom end of the workbench 2, a second tin removing walking device 407 is installed in the abdicating groove 406 in a sliding fit manner, sliding blocks 304 are also symmetrically arranged on the front side and the rear side of the second tin removing walking device 407, and threaded holes in the middle of the sliding blocks 304 on the front side and the rear side of the second tin removing walking device 407 are installed on the other corresponding threaded screw rod 5 in a threaded fit manner;
one side of the top end of the workbench 2 is rotatably connected with a linkage rod 307 through a bearing, the linkage rod 307 is rotatably connected with the top ends of the threaded screws 5 through bevel gears in a staggered mode, the middle of the linkage rod 307 is located at the top end of the workbench 2 and is fixedly provided with a servo motor 305, a gear 306 extends out of the servo motor 305, the gear 306 is a bevel gear, and the gear 306 is rotatably connected with the linkage rod 307 through bevel gear connection so as to drive the threaded screws 5 on the two sides to rotate synchronously.
The other side of the bottom end of the workbench 2 is provided with a hinged support 8, the hinged support 8 is hinged with a square plate-shaped ejector rod base 7, the top end of the ejector rod base 7 is provided with a plurality of anti-blocking ejector rods 6 matched with the micro holes of the circuit board, the bottom end of the workbench 2, which is positioned on the bottom surface of the abdicating groove 406, is provided with an electromagnet 408, and the top end of the ejector rod base 7 is connected with the electromagnet 408. The ejector rod base 7 is made of metal materials, the ejector rod base 7 generates a magnetic block through the electromagnet 408 to adsorb, the ejector rod base (7) is convenient to mount quickly, and when the ejector rod base 7 is put down downwards, the second tin removing walking device 407 is convenient to slide on the bottom surface of the circuit board.
Specifically, the circuit board is horizontally placed on the workbench 2, the middle part of the workbench 2 is provided with a through square hole, the middle part of the circuit board is suspended, the ejector rod base 7 hinged to the bottom of the workbench 2 is attached to the bottom of the workbench 2, the anti-blocking ejector rod 6 is matched to jack up upwards to block a plurality of micropores on the surface of the circuit board, so that soldering tin cannot permeate into the micropores of the circuit board when being heated and melted, the blockage of the micropores of the circuit board is avoided, four corners of the circuit board are clamped and fixed at the top end of the workbench 2 through the clamping components 4, the first detinning walking device 3 walks on the surface of the circuit board to locally scrape off large-area tin metal remained on the surface of the recovered circuit board, the first detinning walking device 3 walks on the surface of the circuit board to realize detinning of the large-area tin metal remained on the surface of the whole, the circuit board can be recycled.
The clamping assembly 4 comprises a pressing plate 401, a tension spring 402, a tension spring groove 403 and a clamping opening 404, the lower clamping plate 405 is arranged on the top end of the workbench 2, the tension spring groove 403 is formed in the top end of the lower clamping plate 405, the pressing plate 401 is arranged on the top end of the lower clamping plate 405, the tension spring 402 is arranged at the bottom end of the pressing plate 401, the bottom end of the tension spring 402 is fixed in the tension spring groove 403, the clamping opening 404 is formed in the side wall of the lower clamping plate 405, and a notch matched with the outline of the circuit board is formed in the side edge of the.
The pressure strip 401 is tensioned and fixed through the tension spring 402, so that the circuit board is convenient to mount and dismount, and the mounting firmness of the circuit board is improved.
The first tin removing walking device 3 comprises a tin shoveling plate 310 transversely arranged on the surface of a circuit board, a plurality of hot air guns 308 are arranged above the tin shoveling plate 310 in the advancing direction at equal intervals, the hot air guns 308 blow hot air towards the surface of the circuit board in the advancing direction of the tin shoveling plate 310, a shoveling inclined surface 312 is arranged at the top end of the tin shoveling plate 310, the shoveling inclined surface 312 is the top surface of the cleaning and brushing plate 301 in the advancing direction, a tin storage groove 313 is arranged on the rear side of the shoveling inclined surface 312 in the advancing direction of the tin shoveling plate 310, and a tin poking roller 309 is fixedly arranged at the upper;
the heating tungsten filaments 314 are arranged in the shovel tin plate 310 at equal intervals close to the shovel inclined plane 312, and the heating tungsten filaments 314 are laid in a net shape at equal intervals along the side edges of the shovel tin plate 310 and the bottom surface of the shovel inclined plane 312.
Specifically, the first detin walking device 3 of the present invention generates thrust through the rotation of the threaded screw 5, so that the first detin walking device 3 advances on the surface of the circuit board at a constant speed, the first detin walking device 3 heats the soldering tin to be shaved in front of the solder shoveling plate 310 through the plurality of heat guns 308 arranged at equal intervals in the advancing process of the surface of the circuit board, so that the soldering tin is softened, the plurality of heat guns 308 are arranged at equal intervals to heat, so that hot air is concentrated, the wind power is high, the surface of the soldering tin is uniformly heated, the softened soldering tin is shaved through the solder shoveling plate 310, so that the soldering tin is shaved into the solder storage tank 313, when the solder shoveling plate 310 shaves, the soldering tin is heated through the mesh-shaped tungsten wires arranged at equal intervals in the solder shoveling plate 310, so that the surface of the solder shoveling plate 310 uniformly heats, when the soldering tin touches the solder shoveling plate 310, the soldering tin is melted into a liquid state through the high temperature on the surface of the solder shoveling, the soldering tin which is melted into liquid is pushed into the liquid storage tank to be stored, so that the soldering tin is separated from the surface of the circuit board, when the tin shoveling plate 310 shovels tin on the surface of the circuit board, the anti-blocking ejector rod 6 blocks micropores on the surface of the circuit board, the soldering tin is not easy to flow into the micropores to block the micropores after being melted into liquid, and the phenomenon that the soldering tin cannot be separated from the circuit board due to the fact that the liquid soldering tin flows into the micropores is avoided.
The tin poking roller 309 comprises a supporting plate 315, a movable scraper 316, a pointed scraper 317, a spring groove 325 and a compression spring 326, the tin poking roller 309 is of a cylindrical structure, the tin poking roller 309 is driven to rotate by an independent motor, the tin poking roller 309 is enabled to rotate at the upper end of the advancing direction of the tin shoveling plate 310, square block-shaped supporting plates 315 are arranged on the outer circular surface of the tin poking roller 309 at equal intervals, the spring groove 325 is formed in the top end of each supporting plate 315, the movable scraper 316 is embedded into each spring groove 325 in a sliding fit mode, the compression spring 326 is arranged at the top end of the movable scraper 316 embedded into the spring groove 325 in the sliding fit mode, the pointed scraper 317 is arranged at the bottom end of the movable scraper 316, and the pointed scraper 317 is inclined.
Specifically, the tin shoveling plate 310 of the invention has an upward climbing when solder enters the tin storage groove 313 through the inclined shoveling surface 312, the tin poking roller 309 rotates at a constant speed above the shoveling surface 312 of the tin shoveling plate 310, the sharp-pointed scraper 317 on the outer circular surface of the tin poking roller 309 downwards performs a brake shoveling action on the solder softened in front of the tin shoveling plate 310, the softened solder is pushed to the upper side of the shoveling surface 312 by the sharp-pointed scraper 317, the solder is melted into liquid on the surface of the tin shoveling plate 310 through the high temperature on the surface of the tin shoveling plate 310, the liquid solder flows more smoothly on the surface of the shoveling surface 312, the sharp-pointed scraper 317 is attached to the surface of the shoveling surface 312, the liquid solder is pushed into the tin storage groove 313, the solder is further collected, the solder is separated from the circuit board, and the recycling and cleaning performance of the circuit board is further improved, the chuck scraper of the invention is supported by the compression spring 326, so, through compression spring 326's elasticity promotion, make the chuck scraper inseparable with the laminating of shovel inclined plane 312, reduce soldering tin liquid and run off, even soldering tin liquid in the last layer of chuck scraper on shovel inclined plane 312 remains downwards, soldering tin liquid is supported by the tip scraper 317 bearing of next floor, still can be pushed in tin storage tank 313, and then the completion is to the detinning of large tracts of land soldering tin and is handled.
The bottom surface of the pointed-end scraper 317 is provided with extension scrapers 318, the extension scrapers 318 are arranged in a plurality of rows, the heights of the two adjacent rows of extension scrapers 318 are different, and the plurality of rows of extension scrapers 318 are in an arc-shaped structure on the bottom surface of the pointed-end scraper 317.
Specifically, the bottom surface of the tip scraper 317 of the present invention is provided with a plurality of rows of extension scrapers 318, the heights of two adjacent rows of extension scrapers 318 are different, and the plurality of rows of extension scrapers 318 are in an arc-shaped structure on the bottom surface of the tip scraper 317. Make pointed end scraper 317 when shovel tin plate 310 surface slides, because the axis of pointed end scraper 317 along dialling tin roller 309 is rotary motion, and then make pointed end scraper 317 make the angle of elevation swing of certain law when shovel tin plate 310 surface slides, the angle through multiseriate extension scraper 318 behind pointed end scraper 317 angle of elevation compensates, when the welding liquid that makes pointed end scraper 317 promote flows downwards, do further bearing to the welding liquid through multiseriate extension scraper 318, reduce the loss of welding liquid, improve the tin storage ability of tin storage tank 313.
Towards being provided with cleaning board 301 in the rear side of first detin running gear 3 advancing direction, cleaning board 301 is the level fixed, cleaning board 301 includes drive groove 318, brush hair 319, drive groove 318 sets up in cleaning board 301's bottom, drive groove 318 is the ring channel in cleaning board 301 bottom, install circulation pivoted drive chain in the drive groove 318, the drive chain is rotatory by motor 302 drive, motor 302 fixed mounting is in cleaning board 301 top, the equidistant brush hair 319 that is provided with in the drive chain bottom in drive groove 318, brush hair 319 revolves along drive groove 318 circulation through motor 302 drive.
Wherein, through the clear brush hair 319 in the rotatory circulation of drive groove 318, clean the circuit board surface, owing to scrape cutting edge 324 and set up in the middle part of the clear brush hair 319 of circulation gyration, make clear brush board 301 when the circuit board surface removes, accomplish the step of brushing earlier, shoveling again, cleaning again to the circuit board surface in proper order, and then improve the scrubbing validity to the circuit board surface, improve the clean and tidy nature on circuit board surface.
Two rows of second supporting plates 320 are arranged in the middle of the bottom end of the cleaning plate 301, a movable supporting rod 322 is arranged at the bottom end of each second supporting plate 320, pressure springs 321 are arranged between the movable supporting rods 322 and the second supporting plates 320 at equal intervals, a scraping blade 324 is arranged on the bottom surface of the side wall of the movable supporting rod 322 facing the advancing direction of the first tin removing walking device 3, and the scraping blade 324 is tightly attached to the surface of the circuit board through the pressure springs 321.
Specifically, the invention is provided with a cleaning brush plate 301 at the rear side of the advancing direction of a first tin removing walking device 3, the surface of a circuit board after tin removal is cleaned by cleaning bristles 319 which rotate circularly at the bottom end of the cleaning brush plate 301, the cleaning bristles 319 are made of steel wires, so that impurity particles and dirt remained on the surface of the circuit board are cleaned and removed, two rows of scraping blades 324 are arranged at the middle part of the cleaning bristles 319, the scraping blades 324 are tightly attached to the surface of the circuit board through a pressure spring 321, when the scraping blades 324 advance in the first tin removing walking device 3, the hard impurity particles and the dirt on the surface of the circuit board are cleaned by the cleaning bristles 319, then the hard impurity particles and the dirt on the surface of the circuit board are shoveled by the scraping blades 324, the cleaning bristles 319 are cleaned after shoveling is finished, the rough edges raised on the surface of the circuit board are cleaned, and the cleaning, the three steps of cleaning, shoveling and cleaning are carried out, the circuit board surface after the detinning is cleaner and tidier, and the cleaning effect of detinning on the surface of the circuit board is improved.
The bottom end of the movable support rod 322 is provided with a wiping sponge 323, the circuit board surface scraped by the scraping blade 324 is further wiped by the wiping sponge 323 through the wiping sponge 323, so that small particle impurities and dirt adhered to the circuit board surface are wiped clean.
It should be noted that, referring to fig. 5, after the lift pin base 7 is put down, the first detinning traveling device 3 and the second detinning traveling device 407 can synchronously perform detinning operations on the top end and the bottom end of the circuit board, and for the micro-holes of the circuit board, when the first detinning traveling device 3 and the second detinning traveling device 407 can synchronously perform detinning operations on the top end and the bottom end of the circuit board, even though the solder penetrates into a part of the micro-holes, the whole detinning effect is not affected.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a cleaning equipment is retrieved to integrated circuit board, gets rid of the soldering tin that exists on integrated circuit board surface, its characterized in that: the tin removing device comprises a workbench, wherein the workbench is of a square plate structure, clamping assemblies are arranged at four corners at the top end of the workbench at equal intervals, the middle parts of the four clamping assemblies are positioned in the middle of the workbench and provided with a through square hole, a circuit board is horizontally placed on the workbench, the four corners of the circuit board are clamped and fixed at the top end of the workbench through the clamping assemblies, two threaded lead screws are respectively arranged on the front side and the rear side of the workbench, a first tin removing walking device is arranged on one side of the top end of the workbench, sliding blocks are symmetrically arranged on the front side and the rear side of the first tin removing walking device, a through threaded hole is formed in the middle part of each sliding block, and a threaded hole in the middle part of each sliding block;
a abdicating groove is formed in one side of the bottom end of the workbench, a second tin removing walking device is installed in the abdicating groove in a sliding fit mode, sliding blocks are symmetrically arranged on the front side and the rear side of the second tin removing walking device, and threaded holes in the middles of the sliding blocks on the front side and the rear side of the second tin removing walking device are installed on the other corresponding threaded screw rod in a threaded fit mode;
one side of the top end of the workbench is rotatably connected with a linkage rod through a bearing, the linkage rod is in staggered rotary connection with the top end of the threaded screw rod through bevel gears, a servo motor is fixedly arranged in the middle of the linkage rod and positioned at the top end of the workbench, gears extend outwards from the servo motor and are bevel gears, and the gears are rotatably connected with the linkage rod through bevel gear connection;
the anti-blocking type anti-blocking bench is characterized in that a hinged support is arranged on the other side of the bottom end of the workbench, a square plate-shaped ejector rod base is hinged to the hinged support, a plurality of anti-blocking ejector rods matched with circuit board micropores are arranged on the top end of the ejector rod base, an electromagnet is arranged on the bottom surface, located in the abdicating groove, of the bottom end of the workbench, and the top end of the ejector rod base is connected with the electromagnet.
2. The integrated circuit board recycling and cleaning device according to claim 1, wherein: the clamping assembly comprises a pressing plate, a tension spring groove and a clamping opening, the lower clamping plate is arranged at the top end of the workbench, the tension spring groove is formed in the top end of the lower clamping plate, the pressing plate is arranged at the top end of the lower clamping plate, the tension spring is arranged at the bottom end of the pressing plate, the bottom end of the tension spring is fixed in the tension spring groove, the clamping opening is formed in the side wall of the lower clamping plate, and a notch matched with the outline of the circuit board is formed in the side edge of the lower clamping plate.
3. The integrated circuit board recycling and cleaning device according to claim 1, wherein: the first tin removing walking device comprises a tin shoveling plate transversely arranged on the surface of a circuit board, a plurality of hot air guns are arranged above the tin shoveling plate in the advancing direction at equal intervals, the hot air guns blow hot air towards the surface of the circuit board in the advancing direction of the tin shoveling plate, a shoveling inclined plane is arranged at the top end of the tin shoveling plate, the shoveling inclined plane is the top surface of the cleaning plate in the advancing direction, a tin storage tank is arranged on the rear side of the shoveling inclined plane in the advancing direction of the tin shoveling plate, and a tin poking roller is fixedly arranged at the upper end of the shoveling inclined plane;
shovel tin board inside is provided with and is close to shovel inclined plane equidistant the laying and has heated the tungsten filament, it is netted to heat the tungsten filament and lay along the side sword on shovel tin board and the bottom surface equidistant on shovel inclined plane.
4. The integrated circuit board recycling and cleaning device according to claim 3, wherein: dial tin roller and include backup pad, activity scraper blade, tip scraper, spring groove, compression spring, dial tin roller and set up to the cylinder structure, it is rotatory through independent motor drive to dial tin roller, makes and dials tin roller and rotate in the upper end of shovel tin board direction of advance, the outer disc equidistant square massive backup pad that is provided with of dialling tin roller, each the spring groove has been seted up on the top of backup pad, and each spring inslot has movable scraper blade through the embedding of sliding fit mode, imbeds in the spring inslot through the sliding fit mode activity scraper blade top is provided with compression spring, activity scraper blade bottom is provided with the tip scraper, the tip scraper blade is 135 degrees slopes at the activity scraper blade.
5. The integrated circuit board recycling and cleaning device according to claim 4, wherein: the bottom surface of tip scraper is provided with extends the scraper, it is equipped with the multiseriate altogether to extend the scraper, and adjacent two highly different between the extension scraper, the multiseriate it is arc structure to extend the scraper at tip scraper bottom surface.
6. The integrated circuit board recycling and cleaning device according to claim 1, wherein: the orientation in the rear side of first detin running gear direction of advance is provided with the clear brush board, it is the level fixed to clear brush board, clear brush board includes the driving groove, clears away the brush hair, and the driving groove is seted up in the bottom of clear brush board, the driving groove is the ring channel in clear brush board bottom, install circulation pivoted driving chain in the driving groove, the driving chain by motor drive is rotatory, motor fixed mounting is in clear brush board top, the equidistant clear brush hair that is provided with in driving chain bottom in the driving groove, clear brush hair passes through motor drive revolves along the driving groove circulation.
7. The integrated circuit board recycling and cleaning device according to claim 6, wherein: clear brush board bottom middle part is provided with two second backup pads, each the bottom of second backup pad is equipped with movable support rod, equidistant pressure spring that is provided with between movable support rod and the second backup pad, towards in first detin running gear advancing direction movable support rod lateral wall bottom surface is provided with the scraping cutting edge, the scraping cutting edge is hugged closely in the circuit board surface through the pressure spring.
8. The integrated circuit board recycling and cleaning device according to claim 7, wherein: the bottom end of the movable supporting rod is provided with a wiping sponge.
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| CN202011228198.0A CN112536258B (en) | 2020-11-06 | 2020-11-06 | Integrated circuit board recycling and cleaning equipment |
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| CN202011228198.0A CN112536258B (en) | 2020-11-06 | 2020-11-06 | Integrated circuit board recycling and cleaning equipment |
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| CN112536258B (en) | 2021-12-07 |
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