CN116723648A - Tin spraying device for PCB production and processing - Google Patents
Tin spraying device for PCB production and processing Download PDFInfo
- Publication number
- CN116723648A CN116723648A CN202310977020.3A CN202310977020A CN116723648A CN 116723648 A CN116723648 A CN 116723648A CN 202310977020 A CN202310977020 A CN 202310977020A CN 116723648 A CN116723648 A CN 116723648A
- Authority
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- Prior art keywords
- shell
- fixedly connected
- rod
- tin spraying
- processing
- Prior art date
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- Granted
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000005507 spraying Methods 0.000 title claims abstract description 49
- 238000012545 processing Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 239000007921 spray Substances 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 238000005476 soldering Methods 0.000 claims description 13
- 239000000758 substrate Substances 0.000 abstract description 34
- 239000007788 liquid Substances 0.000 abstract description 13
- 238000007789 sealing Methods 0.000 abstract description 11
- 230000036541 health Effects 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000013519 translation Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect 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
-
- 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
- H05K2203/01—Tools for processing; Objects used during processing
- H05K2203/0104—Tools for processing; Objects used during processing for patterning or coating
- H05K2203/0126—Dispenser, e.g. for solder paste, for supplying conductive paste for screen printing or for filling holes
-
- 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
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0736—Methods for applying liquids, e.g. spraying
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Spray Control Apparatus (AREA)
Abstract
The invention discloses a tin spraying device for producing and processing a PCB (printed Circuit Board), which relates to the technical field of PCB production and processing and comprises a shell, wherein a crawler belt is arranged in the shell in a penetrating way, an inner cavity and a cavity are respectively arranged in the side wall of the shell, a motor is arranged on the top surface of the shell, a screw rod is fixedly connected to the output end of the motor, a moving block is meshed and sleeved on the outer surface of the screw rod, a baffle is fixedly connected to the end surface of the moving block, and a driving bevel gear is fixedly connected to the bottom end of the screw rod, and the tin spraying device has the advantages that: the ejector rod correspondingly fluctuates along with the deformation of the side wall of the substrate and clings to the side wall of the substrate, so that the purpose of fully limiting the substrate is achieved, the sealing tin spraying and the fixing of the PCB can be synchronously carried out, the production and processing period of the PCB is shortened, tin spraying can be carried out according to the modeling of the PCB, the tin spraying liquid is not easy to waste, the cost consumption is reduced, the tin spraying environment can be sealed, and the harmful substances in the tin spraying liquid are prevented from damaging the health of workers.
Description
Technical Field
The invention relates to the technical field of PCB production and processing, in particular to a tin spraying device for PCB production and processing.
Background
The printed circuit board can be divided into a tin spraying board, a gold melting board, a silver melting board and an OSP board from the production and manufacturing process, wherein the tin spraying board is a common type of PCB board, is generally a multilayer high-precision PCB board, can be used in fields and products such as various electronic equipment, communication products, computers, medical equipment, aerospace and the like, the tin spraying is a step and a process flow of the PCB board in the production and manufacturing process, specifically, the PCB board is immersed in a molten soldering tin pool, all exposed copper surfaces can be covered by soldering tin, and then the redundant soldering tin on the PCB board is removed through a hot air cutter.
Through searching, chinese patent No. CN113766766a discloses an automatic tin spraying device for PCB production, although simplifying the feeding and discharging process of the PCB, reducing the product rejection rate, and achieving the ideal effect, but failing to ensure the sealing of the tin spraying environment, and adding more harmful substances into the tin soldering liquid, in the tin spraying process, if the tin soldering liquid volatilizes or splashes, the body health of the staff is vulnerable, and the fixation of sealing tin spraying and the PCB cannot be synchronously performed, thereby the processing period is easily prolonged, and the general tin spraying device cannot spray tin according to the shape of the PCB, thereby wasting the tin soldering liquid easily, increasing the cost consumption, and bringing the problem of device defect.
Disclosure of Invention
The invention aims to provide a tin spraying device for PCB production and processing.
In order to solve the problems set forth in the background art, the invention provides the following technical scheme: the utility model provides a tin spraying device for PCB board production and processing, includes the casing, link up in the casing and install the track, and be equipped with inner chamber and cavity in the lateral wall of casing respectively, the top surface of casing installs the motor, the rigid coupling has the lead screw on the output of motor, the surface meshing of lead screw has cup jointed the movable block, the rigid coupling has the baffle on the terminal surface of movable block, and the bottom rigid coupling of lead screw has initiative helical gear, the surface meshing of initiative helical gear is connected with first transmission helical gear, the rigid coupling has first pivot on the axis of first transmission helical gear, the surface sliding of first pivot has cup jointed the locating rack, and the rigid coupling has the second transmission helical gear on the terminal surface of first pivot, the surface meshing of second transmission helical gear is connected with driven helical gear, the rigid coupling has the second pivot on the axis of driven helical gear, the bottom surface rigid coupling has the vortex bar, the surface meshing of vortex bar is connected with the turbine, the internal surface meshing has the external screw thread of turbine, the logical groove has been seted up on the external screw thread, the sliding groove has cup jointed the slider, and the internal thread has cup jointed on the fixed plate, the fixed plate has cup jointed on the telescopic link.
Through the scheme, the following technical effects can be achieved: the movable block can drive the baffle to descend, the baffle seals the two ends of the shell, the substrate is located in a sealed environment by matching with the crawler belt, the purpose of sealing the tin spraying environment is achieved, and harmful substances in the tin soldering liquid are prevented from damaging the health of staff.
As a further aspect of the invention: the baffle is in sliding sleeve joint with the cavity, the bottom surface of the baffle is in contact connection with the outer surface of the crawler belt, the screw rod is in rotary connection with the bottom surface of the cavity, the limiting frame is fixedly connected with the side wall of the cavity, two ends of the second rotating shaft are all in rotary connection with the cavity, the telescopic rod penetrates through the cavity, the telescopic rod and the ejector rod are all extended into the shell, and the ejector rod is located above the crawler belt.
Through the scheme, the following technical effects can be achieved: the first transmission helical gear meshed with the driving helical gear drives the first rotating shaft to rotate, so that the second transmission helical gear on the first rotating shaft drives the driven helical gear to rotate, the second rotating shaft on the driven helical gear drives the turbine to rotate through the worm, the turbine drives the external thread sleeved with the worm to move, and the sliding block is matched with the through groove to limit the rotation of the external thread, so that the external thread can only translate.
As a further aspect of the invention: the through grooves and the sliding blocks are uniformly distributed relative to the central axis of the telescopic rod, the turbine is rotationally connected with the side wall of the cavity, and the sliding blocks are fixedly connected with the shell.
Through the scheme, the telescopic rod on the external thread is driven to be gradually inserted into the shell, the fixing plate on the telescopic rod can drive the ejector rod to be inserted into the shell along with the translation of the telescopic rod, the ejector rod is finally enabled to extrude the side wall of the substrate, the ejector rod can correspondingly undulate along with the deformation of the side wall of the substrate and cling to the side wall of the substrate, the purpose of fully limiting the substrate is achieved, and the sealing tin spraying and the fixing of the PCB can be synchronously carried out, so that the production and processing period of the PCB is shortened.
As a further aspect of the invention: the end face of the ejector rod is fixedly connected with a first connecting plate, the top surface of the fixed plate is fixedly connected with a second connecting plate, and a first spring is fixedly connected between the second connecting plate and the first connecting plate.
Through the scheme, the following technical effects can be achieved: the ejector rod can be limited by the first spring, so that the ejector rod has a limiting function.
As a further aspect of the invention: the shell limits the rotation of telescopic link through slider and logical groove, the motor passes through lead screw and movable block drive baffle decline, cavity and motor all set up with respect to the bisector symmetry of shell, the lead screw passes through first transmission helical gear, second transmission helical gear and vortex bar drive turbine rotation.
As a further aspect of the invention: the top end of the first connecting plate is fixedly connected with a steel rope, the outer surface of the steel rope is sleeved with a guide wheel in a sliding manner, the end face of the steel rope is fixedly connected with a sliding rod, a second spring is fixedly connected between the sliding rod and the side wall of the inner cavity, the bottom surface of the sliding rod is fixedly connected with a sleeve, the inner surface of the sleeve is sleeved with a spray pipe in a sliding manner, and a spray head is arranged on the outer surface of the spray pipe.
Through the scheme, the following technical effects can be achieved: the steel rope is folded downwards at the guide wheel to pull the sliding rod to move, the sliding rod stretches the second spring, the sleeve is driven to move, the sleeve gradually shields the spray pipe, the moving distance of the sliding rod and the ejector rod is equal through the operation, the moving distance of the sleeve and the ejector rod is equal, the width of the spray head exposed on the spray pipe is equal to the width of the spray head exposed on the specific section of the substrate, the purpose of spraying tin according to the modeling of the PCB is achieved, solder liquid is not wasted easily, and cost consumption is reduced.
As a further aspect of the invention: the guide wheels are provided with three groups, the three groups of guide wheels are fixedly connected with the outer surface of the shell, the sliding rod is in sliding sleeve joint with the top wall of the shell, the cross section of the sliding rod is in a T-shaped arrangement, and the telescopic rod drives the ejector rod to move through the fixing plate.
As a further aspect of the invention: the first connecting plate pulls the sliding rod to move through the steel rope and the guide wheel, and the steel rope drives the sleeve to move through the sliding rod.
As a further aspect of the invention: the length of ejector pin is the half of casing internal width, the steel cable is the zigzag setting, the spray tube is the Y font setting, the input of spray tube is connected with the soldering tin pond, the slide bar sets up about the bisector symmetry of casing.
As a further aspect of the invention: the steel ropes and the guide wheels are in one-to-one correspondence with the ejector rods, and the sleeve is in sliding sleeve joint with the shell.
The technical scheme is adopted: compared with the prior art, the invention has the beneficial effects that:
according to the invention, the driving bevel gear on the driving bevel gear is driven to rotate by the screw rod, so that the first driving bevel gear meshed with the driving bevel gear drives the first rotating shaft to rotate, the second driving bevel gear on the first rotating shaft drives the driven bevel gear to rotate, the second rotating shaft on the driven bevel gear drives the turbine to rotate by the worm rod, the turbine drives the external screw thread meshed and sleeved with the worm gear to move, the sliding block is matched with the through groove to limit the rotation of the external screw thread, the external screw thread can only translate, the external screw thread drives the telescopic rod on the telescopic rod to gradually insert into the shell, the fixed plate on the telescopic rod drives the ejector rod to insert into the shell along with the translation of the telescopic rod, finally the ejector rod presses the side wall of the substrate, and the ejector rod correspondingly undulates along with the deformation of the side wall of the substrate, and the side wall of the substrate is tightly contacted with the side wall of the substrate, so that the purpose of fully limiting the substrate is achieved, the sealing tin spraying and the fixing of the PCB can be synchronously performed, and the production and processing period of the PCB is shortened.
According to the invention, when the ejector rod moves, the first connecting plate on the ejector rod can pull one end of the steel rope to move, so that the steel rope can pull the sliding rod to move downwards when being folded by the guide wheel, the sliding rod stretches the second spring and drives the sleeve to move, so that the sleeve gradually shields the spray pipe, and through the operation, the moving distance of the sliding rod and the ejector rod is equal, so that the moving distance of the sleeve and the ejector rod is equal, the width of a spray head exposed on the spray pipe is equal to the width on a specific section of the substrate, the purpose of spraying tin according to the modeling of the PCB is achieved, the solder liquid is not wasted easily, and the cost consumption is reduced.
According to the invention, the moving block is driven to move through the screw rod on the motor, and the moving block cannot rotate due to the limit of the baffle plate, so that the moving block can only vertically descend, the moving block drives the baffle plate to descend, the baffle plate seals two ends of the shell, and the substrate is positioned in a sealed environment by matching with the crawler belt, so that the purpose of sealing a tin spraying environment is achieved, and the harmful substances in the soldering tin liquid are prevented from damaging the health of staff.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a tin spraying device for PCB production and processing according to the present invention;
FIG. 2 is a half-sectional view of a housing structure according to an embodiment of the present invention;
FIG. 3 is a side cross-sectional view of a housing in an embodiment of the invention;
FIG. 4 is a schematic view of a steel rope according to an embodiment of the present invention;
FIG. 5 is a schematic view of a scroll drive in accordance with an embodiment of the present invention;
FIG. 6 is a schematic view of an external thread structure according to an embodiment of the present invention;
FIG. 7 is a schematic view of a mandrel structure according to an embodiment of the present invention;
FIG. 8 is an enlarged view of the portion A of FIG. 4 in accordance with an embodiment of the present invention;
FIG. 9 is a schematic view of a nozzle structure according to an embodiment of the present invention.
In the figure: 1. a housing; 2. a track; 3. an inner cavity; 4. a cavity; 5. a motor; 6. a screw rod; 7. a moving block; 8. a baffle; 9. a driving helical gear; 10. a first drive bevel gear; 11. a first rotating shaft; 12. a limiting frame; 13. a second drive bevel gear; 14. driven helical gears; 15. a second rotating shaft; 16. a scroll rod; 17. a turbine; 18. an external thread; 19. a through groove; 20. a telescopic rod; 21. a fixing plate; 22. a slide block; 23. a push rod; 24. a first connector plate; 25. a second connector plate; 26. a first spring; 27. a steel rope; 28. a guide wheel; 29. a slide bar; 30. a second spring; 31. a sleeve; 32. a spray pipe; 33. a spray head.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Examples
Referring to fig. 1-4, the present invention provides a technical solution: a tin spraying device for PCB production and processing comprises a shell 1, wherein a crawler belt 2 is arranged in the shell 1 in a penetrating manner, an inner cavity 3 and a cavity 4 are respectively arranged in the side wall of the shell 1, a motor 5 is arranged on the top surface of the shell 1, a screw rod 6 is fixedly connected to the output end of the motor 5, a moving block 7 is sleeved on the outer surface of the screw rod 6 in a meshed manner, and a baffle plate 8 is fixedly connected to the end surface of the moving block 7.
Referring to fig. 2, a baffle plate 8 is slidably sleeved with the cavity 4, the bottom surface of the baffle plate 8 is in contact connection with the outer surface of the crawler belt 2, and a screw rod 6 is rotatably connected with the bottom surface of the cavity 4.
Specifically, in sealed tin spraying's in-process, place the base plate on track 2 to in the track 2 is transmitted the base plate to casing 1 through the track, restart motor 5 this moment, make motor 5 drive movable block 7 through lead screw 6 and remove, and movable block 7 receives spacing unable rotation of baffle 8, make movable block 7 only can vertically descend, thereby make movable block 7 drive baffle 8 descend, make baffle 8 seal the both ends of casing 1, cooperate track 2, make the base plate be located the confined environment, reach the sealed purpose of tin spraying environment, avoid harmful substance in the soldering tin liquid to harm staff's health.
Examples
Referring to fig. 3-6, the present invention provides a technical solution: a tin spraying device for PCB production and processing is characterized in that a driving bevel gear 9 is fixedly connected to the bottom end of a screw rod 6, a first transmission bevel gear 10 is connected to the outer surface of the driving bevel gear 9 in a meshed mode, a first rotating shaft 11 is fixedly connected to the central axis of the first transmission bevel gear 10, a limiting frame 12 is fixedly connected to the outer surface of the first rotating shaft 11 in a sliding mode, a second transmission bevel gear 13 is fixedly connected to the end face of the first rotating shaft 11 in a fixedly connected mode, a driven bevel gear 14 is fixedly connected to the outer surface of the second transmission bevel gear 13 in a meshed mode, a second rotating shaft 15 is fixedly connected to the central axis of the driven bevel gear 14, a vortex rod 16 is fixedly connected to the outer surface of the bottom end of the second rotating shaft 15 in a meshed mode, a turbine 17 is connected to the outer surface of the vortex rod 16 in a meshed mode, an external thread 18 is connected to the inner surface of the turbine 17 in a meshed mode, a through groove 19 is formed in the external thread 18 in a sleeved mode, a sliding block 22 is fixedly connected to the inner surface of the external thread 18 in a sliding mode, a telescopic rod 21 is fixedly connected to the end face of the telescopic rod 20, a fixing plate 21 is fixedly connected to the fixing plate 21, and a push rod 23 is fixedly connected to the fixing plate 21 in a sliding mode on the end face of the fixing plate 21 in a sliding mode.
Referring to fig. 3-4, the limiting frame 12 is fixedly connected with the side wall of the cavity 4, two ends of the second rotating shaft 15 are rotatably connected with the cavity 4, the telescopic rod 20 penetrates through the cavity 4, the telescopic rod 20 and the ejector rod 23 extend into the shell 1, and the ejector rod 23 is located above the crawler 2.
Referring to fig. 3 and 6, the through slots 19 and the sliding blocks 22 are uniformly distributed about the central axis of the telescopic rod 20, the turbine 17 is rotatably connected with the side wall of the cavity 4, the sliding blocks 22 are fixedly connected with the housing 1, the end face of the ejector rod 23 is fixedly connected with a first connecting plate 24, the top surface of the fixed plate 21 is fixedly connected with a second connecting plate 25, and a first spring 26 is fixedly connected between the second connecting plate 25 and the first connecting plate 24.
Specifically, in the process of sealing the substrate, the driving bevel gear 9 on the screw rod 6 is driven to rotate by the rotation of the screw rod 6, so that the first driving bevel gear 10 meshed with the driving bevel gear 9 drives the first rotating shaft 11 to rotate, thereby enabling the second driving bevel gear 13 on the first rotating shaft 11 to drive the driven bevel gear 14 to rotate, enabling the second rotating shaft 15 on the driven bevel gear 14 to drive the turbine 17 to rotate through the vortex rod 16, further enabling the turbine 17 to drive the external thread 18 meshed and sleeved with the turbine 17 to move, and the sliding block 22 cooperates with the through groove 19 to limit the rotation of the external thread 18, so that the external thread 18 can only translate, and accordingly enabling the external thread 18 to drive the telescopic rod 20 thereon to be gradually inserted into the shell 1, and enabling the fixing plate 21 on the telescopic rod 20 to drive the ejector rod 23 to be inserted into the shell 1, and finally enabling the ejector rod 23 to squeeze the side wall of the substrate to undulate along with the deformation of the side wall of the substrate, enabling the ejector rod 23 to be corresponding and clinging to the side wall of the substrate, achieving the purpose of fully limiting the substrate, enabling the sealing of the tin spraying and the fixing of the PCB to be synchronous, and shortening the production period of the PCB.
Examples
Referring to fig. 1, 4 and 7-9, the present invention provides a technical solution: a tin spraying device for PCB board production and processing, the top rigid coupling of first joint board 24 has steel cable 27, and the surface sliding sleeve of steel cable 27 has cup jointed leading wheel 28, and rigid coupling has slide bar 29 on the terminal surface of steel cable 27, has fixedly connected second spring 30 between the lateral wall of slide bar 29 and inner chamber 3, and the bottom surface rigid coupling of slide bar 29 has sleeve 31, and sleeve 31's internal surface sliding sleeve has cup jointed spray tube 32, and spray tube 32's surface mounting has shower nozzle 33.
Referring to fig. 1 and 4, three sets of guide wheels 28 are provided, and the three sets of guide wheels 28 are fixedly connected with the outer surface of the housing 1, a slide bar 29 is slidably sleeved on the top wall of the housing 1, the cross section of the slide bar 29 is in a T-shaped configuration, and the telescopic rod 20 drives the ejector rod 23 to move through the fixing plate 21.
Referring to fig. 7 and 9, the first connecting plate 24 pulls the sliding rod 29 to move through the steel rope 27 and the guide wheel 28, the steel rope 27 drives the sleeve 31 to move through the sliding rod 29, the length of the ejector rod 23 is half of the inner width of the shell 1, the steel rope 27 is arranged in a zigzag manner, the spray pipe 32 is arranged in a Y-shape, the input end of the spray pipe 32 is connected with a soldering tin pool, the sliding rod 29 is symmetrically arranged about the bisector of the shell 1, the steel rope 27 and the guide wheel 28 are in one-to-one correspondence with the ejector rod 23, and the sleeve 31 is in sliding sleeve joint with the shell 1.
Specifically, in the process of positioning the substrate, the first connecting plate 24 on the ejector rod 23 pulls one end of the steel rope 27 to move while the ejector rod 23 moves, so that the steel rope 27 pulls the sliding rod 29 downwards when the guide wheel 28 is folded, the sliding rod 29 stretches the second spring 30 and drives the sleeve 31 to move, so that the sleeve 31 gradually shields the spray pipe 32, and through the operation, the moving distance of the sliding rod 29 and the ejector rod 23 is equal, so that the moving distance of the sleeve 31 and the ejector rod 23 is equal, the width of the spray nozzle 33 exposed on the spray pipe 32 is equal to the width on a specific section of the substrate, the purpose of spraying tin according to the modeling of the PCB is achieved, solder liquid is not wasted easily, and cost consumption is reduced.
The working principle and the using flow of the invention are as follows: when the PCB needs to be produced and processed, the substrate is placed on the crawler belt 2, the substrate is driven into the shell 1 through the crawler belt 2, at the moment, the motor 5 is restarted, the motor 5 drives the movable block 7 to move through the screw rod 6, the movable block 7 is limited by the baffle plate 8 and cannot rotate, the movable block 7 can only vertically descend, the movable block 7 drives the baffle plate 8 to descend, the baffle plate 8 seals two ends of the shell 1, the substrate is located in a sealed environment by matching with the crawler belt 2, the purpose of sealing a tin spraying environment is achieved, and harmful substances in soldering tin liquid are prevented from damaging the health of staff;
in the descending process of the baffle plate 8, the driving bevel gear 9 on the driving bevel gear 9 is driven to rotate by the rotation of the screw rod 6, the first driving bevel gear 10 meshed with the driving bevel gear 9 drives the first rotating shaft 11 to rotate, so that the second driving bevel gear 13 on the first rotating shaft 11 drives the driven bevel gear 14 to rotate, the second rotating shaft 15 on the driven bevel gear 14 drives the turbine 17 to rotate through the vortex rod 16, the turbine 17 drives the external thread 18 meshed and sleeved with the turbine 17 to move, the sliding block 22 cooperates with the through groove 19 to limit the rotation of the external thread 18, the external thread 18 only translates, so that the external thread 18 drives the telescopic rod 20 on the telescopic rod 18 to gradually insert into the shell 1, the fixing plate 21 on the telescopic rod 20 drives the ejector rod 23 to insert into the shell 1 along with the translation of the telescopic rod 20, finally the ejector rod 23 extrudes the side wall of the substrate, and along with the deformation of the side wall of the substrate, the ejector rod 23 is correspondingly and clings to the side wall of the substrate, the purpose of fully limiting the substrate is achieved, the sealing tin spraying and the fixing of the PCB can be synchronously carried out, and the PCB production period is shortened;
while the ejector rod 23 moves, the first connecting plate 24 on the ejector rod 23 pulls one end of the steel rope 27 to move, so that the steel rope 27 pulls the sliding rod 29 to move downwards when the guide wheel 28 is folded, the sliding rod 29 stretches the second spring 30 and drives the sleeve 31 to move, so that the sleeve 31 gradually shields the spray pipe 32, and through the operation, the moving distance of the sliding rod 29 and the ejector rod 23 is equal, so that the moving distance of the sleeve 31 and the ejector rod 23 is equal, the width of the spray nozzle 33 exposed on the spray pipe 32 is equal to the width on a specific section of the substrate, the purpose of tin spraying according to the modeling of the PCB is achieved, the solder liquid is not wasted easily, and the cost consumption is reduced;
when the tin spraying is completed, the motor 5 is reversely started, the baffle plate 8 is lifted up through the principle, the telescopic rod 20 is reset, the ejector rod 23 is separated from the substrate, the fixing of the substrate is released, meanwhile, the return stroke of the ejector rod 23 is realized, the first spring 26 and the second spring 30 retract, the sleeve 31 and the ejector rod 23 are enabled to return synchronously, the tin spraying of the subsequent substrate is facilitated, the tin spraying device can adapt to the production and processing of PCB boards with various shapes, and the operation is completed.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, and yet fall within the scope of the invention.
Claims (10)
1. A spout tin device for PCB board production and processing, its characterized in that: comprises a shell (1), a crawler belt (2) is arranged in the shell (1) in a penetrating way, an inner cavity (3) and a cavity (4) are respectively arranged in the side wall of the shell (1), a motor (5) is arranged on the top surface of the shell (1), a screw rod (6) is fixedly connected to the output end of the motor (5), a moving block (7) is meshed and sleeved on the outer surface of the screw rod (6), a baffle plate (8) is fixedly connected to the end surface of the moving block (7), a driving bevel gear (9) is fixedly connected to the bottom end of the screw rod (6), a first transmission bevel gear (10) is meshed and connected to the outer surface of the driving bevel gear (9), a first rotating shaft (11) is fixedly connected to the central axis of the first transmission bevel gear (10), a limiting frame (12) is sleeved on the outer surface of the first rotating shaft (11), a second transmission bevel gear (13) is fixedly connected to the end surface of the first rotating shaft (11), a driven bevel gear (14) is meshed and fixedly connected to the central axis of the second bevel gear (15), a turbine (16) is meshed and the outer surface (16) of the turbine (16), the inner surface of turbine (17) meshing has cup jointed external screw thread (18), set up logical groove (19) on external screw thread (18), sliding sleeve has cup jointed slider (22) in logical groove (19), and the internal surface rigid coupling of external screw thread (18) has telescopic link (20), rigid coupling has fixed plate (21) on the terminal surface of telescopic link (20), sliding sleeve has on fixed plate (21) ejector pin (23).
2. The tin spraying device for producing and processing the PCB according to claim 1, wherein: baffle (8) are connected with cavity (4) in a sliding mode, the bottom surface of baffle (8) is connected with the outer surface of track (2) in a contact mode, lead screw (6) are connected with the bottom surface of cavity (4) in a rotating mode, limiting frames (12) are fixedly connected with the side wall of cavity (4), two ends of second rotating shafts (15) are connected with cavity (4) in a rotating mode, telescopic rods (20) penetrate through cavity (4), telescopic rods (20) and ejector rods (23) are all extended into shell (1), and ejector rods (23) are located above the track (2).
3. The tin spraying device for producing and processing the PCB according to claim 1, wherein: the through grooves (19) and the sliding blocks (22) are uniformly distributed relative to the central axis of the telescopic rod (20), the turbine (17) is rotationally connected with the side wall of the cavity (4), and the sliding blocks (22) are fixedly connected with the shell (1).
4. The tin spraying device for producing and processing the PCB according to claim 1, wherein: the end face of the ejector rod (23) is fixedly connected with a first connecting plate (24), the top surface of the fixed plate (21) is fixedly connected with a second connecting plate (25), and a first spring (26) is fixedly connected between the second connecting plate (25) and the first connecting plate (24).
5. The tin spraying device for producing and processing the PCB according to claim 1, wherein: the shell (1) limits the rotation of the telescopic rod (20) through the sliding block (22) and the through groove (19), the motor (5) drives the baffle (8) to descend through the screw rod (6) and the moving block (7), the cavity (4) and the motor (5) are symmetrically arranged relative to a bisector of the shell (1), and the screw rod (6) drives the turbine (17) to rotate through the first transmission helical gear (10), the second transmission helical gear (13) and the worm rod (16).
6. The tin spraying device for producing and processing the PCB according to claim 4, wherein: the top rigid coupling of first joint board (24) has steel cable (27), the surface slip of steel cable (27) has cup jointed leading wheel (28), and rigid coupling has slide bar (29) on the terminal surface of steel cable (27), rigid coupling has second spring (30) between the lateral wall of slide bar (29) and inner chamber (3), and the bottom surface rigid coupling of slide bar (29) has sleeve (31), the interior surface slip of sleeve (31) has cup jointed spray tube (32), the surface mounting of spray tube (32) has shower nozzle (33).
7. The tin spraying device for producing and processing the PCB according to claim 6, wherein: the guide wheels (28) are provided with three groups, the three groups of guide wheels (28) are fixedly connected with the outer surface of the shell (1), the sliding rod (29) is in sliding sleeve joint with the top wall of the shell (1), the cross section of the sliding rod (29) is in a T-shaped arrangement, and the telescopic rod (20) drives the ejector rod (23) to move through the fixing plate (21).
8. The tin spraying device for producing and processing the PCB according to claim 6, wherein: the first connecting plate (24) pulls the sliding rod (29) to move through the steel rope (27) and the guide wheel (28), and the steel rope (27) drives the sleeve (31) to move through the sliding rod (29).
9. The tin spraying device for producing and processing the PCB according to claim 6, wherein: the length of ejector rod (23) is half of the inner width of casing (1), steel cable (27) are the zigzag setting, spray tube (32) are Y font setting, the input of spray tube (32) is connected with the soldering tin pond, slide bar (29) are about the bisector symmetry setting of casing (1).
10. The tin spraying device for producing and processing the PCB according to claim 6, wherein: the steel ropes (27) and the guide wheels (28) are in one-to-one correspondence with the ejector rods (23), and the sleeve (31) is in sliding sleeve joint with the shell (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310977020.3A CN116723648B (en) | 2023-08-04 | 2023-08-04 | Tin spraying device for PCB production and processing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310977020.3A CN116723648B (en) | 2023-08-04 | 2023-08-04 | Tin spraying device for PCB production and processing |
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| CN116723648B CN116723648B (en) | 2023-10-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110602357A (en) * | 2019-08-26 | 2019-12-20 | 歌尔股份有限公司 | Camera telescoping device and mobile terminal |
| CN112496817A (en) * | 2020-11-16 | 2021-03-16 | 杨淑媛 | Hole position alignment equipment and method for metal part machining |
| CN113194632A (en) * | 2021-04-30 | 2021-07-30 | 安徽鸿发智能科技有限公司 | SMT paster processing is with screen printing device of polychrome printing |
| CN113766766A (en) * | 2021-09-25 | 2021-12-07 | 怀化海红盛电子科技有限公司 | Automatic tin spraying device is used in PCB board production |
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2023
- 2023-08-04 CN CN202310977020.3A patent/CN116723648B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110602357A (en) * | 2019-08-26 | 2019-12-20 | 歌尔股份有限公司 | Camera telescoping device and mobile terminal |
| CN112496817A (en) * | 2020-11-16 | 2021-03-16 | 杨淑媛 | Hole position alignment equipment and method for metal part machining |
| CN113194632A (en) * | 2021-04-30 | 2021-07-30 | 安徽鸿发智能科技有限公司 | SMT paster processing is with screen printing device of polychrome printing |
| CN113766766A (en) * | 2021-09-25 | 2021-12-07 | 怀化海红盛电子科技有限公司 | Automatic tin spraying device is used in PCB board production |
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| CN116723648B (en) | 2023-10-20 |
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