CN114900989A - SMT reflow soldering tin cream coating device - Google Patents
SMT reflow soldering tin cream coating device Download PDFInfo
- Publication number
- CN114900989A CN114900989A CN202210502407.9A CN202210502407A CN114900989A CN 114900989 A CN114900989 A CN 114900989A CN 202210502407 A CN202210502407 A CN 202210502407A CN 114900989 A CN114900989 A CN 114900989A
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- gear
- motor
- solder paste
- fixedly arranged
- threaded rod
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- 239000011248 coating agent Substances 0.000 title claims abstract description 40
- 238000000576 coating method Methods 0.000 title claims abstract description 40
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000005476 soldering Methods 0.000 title claims abstract description 14
- 239000006071 cream Substances 0.000 title claims description 21
- 229910000679 solder Inorganic materials 0.000 claims abstract description 115
- 238000006073 displacement reaction Methods 0.000 claims abstract description 72
- 238000007790 scraping Methods 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 230000001360 synchronised effect Effects 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/3457—Solder materials or compositions; Methods of application thereof
- H05K3/3485—Applying solder paste, slurry or powder
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention relates to a related device for SMT production, in particular to a solder paste coating device for SMT reflow soldering, which comprises a conveying mechanism, a first displacement mechanism, a second displacement mechanism and a solder paste scraping plate mechanism, wherein the first displacement mechanism is fixedly arranged on the conveying mechanism; the device can only use the single surface of the scraper blade to operate, avoids the phenomenon that tin paste adheres to the double surfaces of the scraper blade to cause waste, can avoid the problem that the tin paste is extruded from the two sides of the scraper blade, and solves the problem of repeatedly collecting the tin paste.
Description
Technical Field
The invention relates to a related device for SMT production, in particular to a device for coating reflow soldering tin paste of SMT.
Background
SMT usually adopts reflow soldering's mode to install, before this, need paint the position that corresponds on the PCB board with the tin cream through the steel sheet of fretwork, the inventor discovers, at the coated in-process of tin cream, when the scraper blade positive and negative used repeatedly, can make the scraper blade two sides all adhere to the tin cream, the chronic tin cream loses moisture, can cause the waste, the tin cream receives the extrusion when coating simultaneously, can extrude from the both sides of scraper blade, the collection arrangement that needs relapse, this process is comparatively troublesome, PCB board often needs the manual work to place simultaneously, and is comparatively troublesome, and the production speed is reduced.
Disclosure of Invention
The technical problem mainly solved by the invention is to provide the SMT reflow soldering paste coating device, the device can operate only by using one side of the scraper, the waste phenomenon caused by the fact that the solder paste adheres to the two sides of the scraper is avoided, the device can avoid the problem that the solder paste is extruded from the two sides of the scraper, and the problem of repeatedly collecting the solder paste is solved.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a SMT reflow soldering tin cream coating device, includes conveying mechanism, first displacement mechanism, second displacement mechanism and tin cream scraper blade mechanism, first displacement mechanism fixed mounting on conveying mechanism, second displacement mechanism fixed mounting is on first displacement mechanism, in the recess that tin cream scraper blade mechanism slidable mounting set up on the second displacement mechanism, second displacement mechanism and tin cream scraper blade mechanism threaded connection.
As a further optimization of the technical scheme, the conveying mechanism of the SMT reflow soldering tin paste coating device comprises a conveying motor, a conveying belt main shaft, a conveying belt auxiliary shaft, a regulating slide piece, a hollowed steel plate clamp, a positioning screw, a motor for jacking, a base, a spring, a cam shaft, a chain and a synchronous chain wheel, wherein the conveying motor is fixedly arranged on the base, the hollowed steel plate clamp is fixedly arranged on the base, a threaded through hole formed in the hollowed steel plate clamp is in threaded connection with the positioning screw, the spring is fixedly arranged on the base, the regulating slide piece is fixedly arranged on the spring, the regulating slide piece is slidably arranged in a groove formed in the base, the conveying belt auxiliary shaft is rotatably arranged in the groove formed in the regulating slide piece, the conveying belt auxiliary shaft is meshed with the conveying belt, the conveying belt is meshed with the conveying belt main shaft, the conveying belt main shaft is fixedly arranged at the output end of the conveying motor, the conveyer belt main shaft is rotatably installed in a groove formed in the base, the jacking motor is fixedly installed in a through hole formed in the base, the output end of the jacking motor is fixedly provided with a synchronous chain wheel, other synchronous chain wheels are rotatably installed in grooves formed in the base, a cam shaft is fixedly installed on the synchronous chain wheel, the cam shaft is rotatably installed in the groove formed in the base, and the chain is meshed with the synchronous chain wheel.
As a further optimization of the technical scheme, the first displacement mechanism of the SMT reflow soldering paste coating apparatus of the present invention includes a frame, a sensor, a long threaded rod, a hydraulic cylinder, a thread slider, and a first displacement motor, wherein the frame is fixedly mounted on the hollowed steel plate clamp, the frame is fixedly mounted with the sensor, one end of the long threaded rod is rotatably mounted in a groove formed in the frame, the other end of the long threaded rod is fixedly mounted at an output end of the first displacement motor, the first displacement motor is fixedly mounted in a through hole formed in the frame, the thread slider is slidably mounted in the groove formed in the frame, the thread slider is in threaded connection with the long threaded rod, and the thread slider is fixedly mounted at the output end of the hydraulic cylinder.
As a further optimization of the technical scheme, the second displacement mechanism of the SMT reflow soldering tin paste coating device comprises a strip-shaped frame, a second displacement motor, a first short threaded rod, a limiting cylinder, an n-shaped frame, a second short threaded rod, a first helical gear, a middle helical gear, a second helical gear and an internal cylinder, wherein a hydraulic cylinder is fixedly arranged in a groove of the strip-shaped frame, the second displacement motor is fixedly arranged in a groove arranged on the strip-shaped frame, the output end of the second displacement motor is fixedly provided with the first short threaded rod, the first short threaded rod is fixedly provided with the first helical gear, the first short threaded rod is rotatably arranged in a through hole arranged on the n-shaped frame, the first helical gear is meshed with the middle helical gear, the middle helical gear is rotatably arranged in a groove arranged on the n-shaped frame, the middle helical gear is meshed with the second helical gear, the second helical gear is fixedly arranged on the second short threaded rod, in the through-hole of setting on the n shape frame is installed in the rotation of two short threaded rods, two rotation of short threaded rod install in the recess that sets up on the bar frame, and fixed mounting has spacing cylinder on the bar frame, and in the recess that sets up was put up to n shape was inserted to the output of spacing cylinder, fixed mounting had inside cylinder in the through-hole that sets up on the n shape frame, and the output of inside cylinder inserts in the recess that sets up on the helical gear in the middle of.
As a further optimization of the technical scheme, the solder paste scraping plate mechanism of the SMT reflow soldering solder paste coating device comprises a Z-shaped sliding plate, a first gear, a second gear, a first solder paste scraping plate, a second solder paste scraping plate, a third gear, a fourth gear, a middle connecting plate, a fifth gear, a sixth gear, a top slider, a first tilt motor, a second tilt motor, a rotating motor, a double gear, a driving gear, a strip-shaped connecting plate and a bottom motor, wherein the first gear is fixedly installed at the output end of the first tilt motor, is meshed with the second gear, the second gear is fixedly installed on the first solder paste scraping plate, the Z-shaped sliding plate is slidably installed in a groove formed in a strip-shaped frame, the third gear is fixedly installed on the second solder paste scraping plate, is meshed with the fourth gear, the fourth gear is fixedly installed at the output end of the second tilt motor, and the second tilt motor is fixedly installed in a groove formed in the middle connecting plate, the middle connecting plate is hinged with the solder paste scraper blade two phase, a sixth gear is fixedly installed on the middle connecting plate, the sixth gear is rotatably installed in a groove arranged on the top slider, a rotating motor is fixedly installed in another groove of the top slider, a fifth gear is fixedly installed at the output end of the rotating motor, the fifth gear is meshed with the sixth gear, the top slider is slidably installed in a groove arranged on the bar frame, the top slider is in threaded connection with a short threaded rod I, the other top slider is in threaded connection with a short threaded rod II, a bottom motor is fixedly installed in a through hole on the Z-shaped sliding plate, a driving gear is fixedly installed at the output end of the bottom motor and meshed with the double gears, the double gears are rotatably installed in the through hole arranged on the Z-shaped sliding plate and are fixedly connected with the bar-shaped connecting plate, a first inclined motor is fixedly installed in the groove arranged on the bar-shaped connecting plate, the strip-shaped connecting plate is hinged with the solder paste scraper I.
The SMT reflow soldering paste coating device has the beneficial effects that:
1. inserting the hollowed-out steel plate into the groove of the hollowed-out steel plate clamp, rotating the positioning screw to enable the positioning screw to press down the hollowed-out steel plate for fixing, starting a conveying motor, driving the conveying belt to rotate through a conveying belt main shaft by the conveying motor, so that a PCB on the conveying belt moves forwards, stopping conveying by the conveying belt when the PCB moves to a specified position under the action of a sensor, starting a jacking motor, driving a plurality of cam shafts to rotate under the action of a chain and a synchronous chain wheel by the jacking motor, jacking the conveying belt by the raised position of the cam shafts, adjusting a slider to slide on a base at the moment, enabling the springs to be under tension, enabling the conveying belt to be jacked up to press the PCB on the conveying belt close to the hollowed-out steel plate and to be in contact with the hollowed-out steel plate, enabling a first displacement mechanism, a second displacement mechanism and a tin paste scraping plate mechanism to perform tin paste coating operation, and enabling the cam shafts to fall back after the tin paste coating is completed, make the PCB board break away from the fretwork steel sheet, starting the conveyer belt, conveying out the PCB board after will coating to replaced the manual work to carry out the interpolation of PCB board, improved production efficiency.
2. Make first gear drive second gear rotatory through tilting motor one, thereby make first slope of tin cream scraper blade, it is rotatory to make fourth gear drive third gear through tilting motor two, thereby make second tin cream scraper blade and the synchronous slope of tin cream scraper blade, start the pneumatic cylinder, the pneumatic cylinder extends the tin cream scraper blade that makes the slope and second tin cream scraper blade can keep with fretwork steel sheet contact, what of the volume of tin cream on the adaptation fretwork steel sheet, can guarantee the extrusion power that the tin cream coated, there is the coverage area that can guarantee the tin cream and receive after the extrusion.
3. When the first solder paste scraper blade and the second solder paste scraper blade move from one end to the other end, the rotating motor and the bottom motor are respectively started, the rotating motor drives the sixth gear to rotate through the fifth gear, so that the intermediate connecting plate drives the second solder paste scraper blade to rotate, the bottom motor drives the double gears to rotate through the driving gears, so that the strip-shaped connecting plate drives the first solder paste scraper blade to rotate, the first solder paste scraper blade and the second solder paste scraper blade are turned over at the moment, one surface of the first solder paste scraper blade and one surface of the second solder paste scraper blade are always kept to be in contact with solder paste, and the phenomenon that the solder paste is adhered to the first solder paste scraper blade to cause waste is avoided.
4. The limiting cylinder contracts to be separated from the n-shaped frame, meanwhile, the output end of the inner cylinder is inserted into the middle helical gear, the second displacement motor is started, the second displacement motor drives the first short threaded rod and the second short threaded rod to rotate together, so that the top sliding piece slides on the strip-shaped frame, the third gear is driven to move when the top sliding piece moves, the third gears on two sides clamp the first solder paste scraper to move synchronously, the Z-shaped sliding plate slides on the strip-shaped frame, the purpose of synchronous movement is achieved, and the device can adapt to the positions of hollows on different hollow steel plates; when spacing cylinder inserts in the n shape frame, inside cylinder shrink breaks away from middle helical gear, start displacement motor two this moment, displacement motor two passes through short threaded rod one and drives first helical gear rotatory, first helical gear drives the second helical gear through middle helical gear rotatory, thereby realize that the direction of short threaded rod two rotations is opposite with the rotatory direction of short threaded rod one, realize the top slider relative movement of both sides, rotate the second solder paste scraper blade of both sides this moment, and make the second side of laminating the first side of solder paste scraper blade of both sides under the drive of both sides top slider, overlook the figure that forms H, when solder paste scraper blade one and solder paste scraper blade two carry out the solder paste coating this moment, just can avoid because of the phenomenon of extruding from the scraper blade both sides that the solder paste too much leads to, also avoided collecting the problem of extruding the solder paste repeatedly on the fretwork steel sheet.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic perspective view of an SMT reflow solder paste coating apparatus according to the present invention.
Fig. 2 is a schematic perspective view of a conveying mechanism 1 of an SMT reflow solder paste coating apparatus according to the present invention.
Fig. 3 is a schematic perspective view of a conveying mechanism 1 of an SMT reflow solder paste coating apparatus according to the present invention.
Fig. 4 is a schematic partial three-dimensional structure diagram of the conveying mechanism 1 of the SMT reflow solder paste coating apparatus of the present invention.
Fig. 5 is a schematic perspective view of the bases 1-9 of an SMT reflow solder paste coating apparatus according to the present invention.
Fig. 6 is a schematic partial three-dimensional structure diagram of the conveying mechanism 1 of the SMT reflow solder paste coating apparatus of the present invention.
Fig. 7 is a schematic perspective view of the first displacement mechanism 2 of the SMT reflow solder paste coating apparatus according to the present invention.
Fig. 8 is a schematic perspective view of a water containing tank 3-1 of an SMT reflow solder paste coating apparatus of the present invention.
Fig. 9 is a schematic perspective view of the second displacement mechanism 3 and the solder paste scraping mechanism 4 of the SMT reflow solder paste coating apparatus of the present invention.
Fig. 10 is a schematic perspective view of a second displacement mechanism 3 of an SMT reflow solder paste coating apparatus according to the present invention.
Fig. 11 is a schematic partial perspective view of a second displacement mechanism 3 of an SMT reflow solder paste coating apparatus according to the present invention.
Fig. 12 is a partial cross-sectional structural diagram of the second displacement mechanism 3 of the SMT reflow solder paste coating apparatus according to the present invention.
FIG. 13 is a schematic perspective view of an intermediate bevel gear 3-8 of an SMT reflow solder paste coating apparatus according to the present invention.
Fig. 14 is a schematic perspective view of a solder paste scraping mechanism 4 of an SMT reflow solder paste coating apparatus according to the present invention.
Fig. 15 is a schematic partial perspective view of a solder paste scraping mechanism 4 of an SMT reflow solder paste coating apparatus according to the present invention.
Fig. 16 is a partial cross-sectional structural diagram of a solder paste scraping mechanism 4 of an SMT reflow solder paste coating apparatus according to the present invention.
Fig. 17 is a schematic partial perspective view of a solder paste scraping mechanism 4 of an SMT reflow solder paste coating apparatus according to the present invention.
In the figure: a conveying mechanism 1; a conveying motor 1-1; a conveyor belt main shaft 1-2; a conveyor belt 1-3; a conveyor belt secondary shaft 1-4; adjusting sliders 1-5; 1-6 parts of hollow steel plate clips; 1-7 of a positioning screw; jack-up motors 1-8; 1-9 of a base; 1-10 parts of spring; 1-11 parts of a camshaft; 1-12 parts of chains; 1-13 of synchronous chain wheel; a first displacement mechanism 2; a frame 2-1; a sensor 2-2; 2-3 of long threaded rod; 2-4 of a hydraulic cylinder; screw sliders 2-5; 2-6 parts of a first displacement motor; a second displacement mechanism 3; a strip frame 3-1; a second displacement motor 3-2; 3-3 parts of a short threaded rod I; 3-4 of a limiting cylinder; 3-5 of an n-shaped frame; 3-6 parts of a short threaded rod II; a first helical gear 3-7; 3-8 parts of a middle bevel gear; a second bevel gear 3-9; 3-10 parts of an inner cylinder; a solder paste scraping mechanism 4; a Z-shaped sliding plate 4-1; a first gear 4-2; a second gear 4-3; 4-4 of a solder paste scraper plate I; 4-5 of a second solder paste scraper; a third gear 4-6; a fourth gear 4-7; 4-8 of an intermediate connecting plate; a fifth gear 4-9; a sixth gear 4-10; top slide 4-11; 4-12 of a first tilting motor; a second tilting motor 4-13; 4-14 parts of a rotating motor; 4-15 parts of double gears; driving gears 4-16; 4-17 of strip-shaped connecting plates; bottom motors 4-18.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
the embodiment will be described with reference to fig. 1 to 17, and an SMT reflow solder paste coating apparatus includes a conveying mechanism 1, a first displacement mechanism 2, a second displacement mechanism 3, and a solder paste scraping plate mechanism 4, wherein the first displacement mechanism 2 is fixedly mounted on the conveying mechanism 1, the second displacement mechanism 3 is fixedly mounted on the first displacement mechanism 2, the solder paste scraping plate mechanism 4 is slidably mounted in a groove formed in the second displacement mechanism 3, and the second displacement mechanism 3 is in threaded connection with the solder paste scraping plate mechanism 4.
The second embodiment is as follows:
the embodiment is described below with reference to fig. 1-17, and the embodiment will be further described, wherein the conveying mechanism 1 includes a conveying motor 1-1, a conveying belt main shaft 1-2, a conveying belt 1-3, a conveying belt auxiliary shaft 1-4, an adjusting slider 1-5, a hollowed steel plate clamp 1-6, a positioning screw 1-7, a jacking motor 1-8, a base 1-9, a spring 1-10, a cam shaft 1-11, a chain 1-12, and a synchronous sprocket 1-13, the conveying motor 1-1 is fixedly mounted on the base 1-9, the hollowed steel plate clamp 1-6 is fixedly mounted on the base 1-9, a threaded through hole formed in the hollowed steel plate clamp 1-6 is in threaded connection with the positioning screw 1-7, the spring 1-10 is fixedly mounted on the base 1-9, an adjusting slider 1-5 is fixedly arranged on a spring 1-10, the adjusting slider 1-5 is slidably arranged in a groove arranged on a base 1-9, a conveyor belt auxiliary shaft 1-4 is rotatably arranged in the groove arranged on the adjusting slider 1-5, the conveyor belt auxiliary shaft 1-4 is meshed with a conveyor belt 1-3, the conveyor belt 1-3 is meshed with a conveyor belt main shaft 1-2, the conveyor belt main shaft 1-2 is fixedly arranged at the output end of a conveying motor 1-1, the conveyor belt main shaft 1-2 is rotatably arranged in the groove arranged on the base 1-9, a jacking motor 1-8 is fixedly arranged in a through hole arranged on the base 1-9, a synchronous chain wheel 1-13 is fixedly arranged at the output end of the jacking motor 1-8, other synchronous chain wheels 1-13 are rotatably arranged in the groove arranged on the base 1-9, the synchronous chain wheels 1-13 are fixedly provided with cam shafts 1-11, the cam shafts 1-11 are rotatably arranged in grooves arranged on the bases 1-9, and the chains 1-12 are meshed with the synchronous chain wheels 1-13.
The third concrete implementation mode:
the second embodiment is further described with reference to fig. 1-17, where the first displacement mechanism 2 includes a frame 2-1, a sensor 2-2, a long threaded rod 2-3, a hydraulic cylinder 2-4, a thread slider 2-5, and a displacement motor one 2-6, the frame 2-1 is fixedly mounted on a hollowed steel plate clamp 1-6, the sensor 2-2 is fixedly mounted on the frame 2-1, one end of the long threaded rod 2-3 is rotatably mounted in a groove formed in the frame 2-1, the other end of the long threaded rod 2-3 is fixedly mounted at an output end of the displacement motor one 2-6, the displacement motor one 2-6 is fixedly mounted in a through hole formed in the frame 2-1, the thread slider 2-5 is slidably mounted in the groove formed in the frame 2-1, the screw slide piece 2-5 is in threaded connection with the long threaded rod 2-3, and the screw slide piece 2-5 is fixedly arranged at the output end of the hydraulic cylinder 2-4.
The fourth concrete implementation mode:
the third embodiment is further described with reference to fig. 1-17, wherein the second displacement mechanism 3 comprises a bar-shaped frame 3-1, a second displacement motor 3-2, a first short threaded rod 3-3, a limiting cylinder 3-4, an n-shaped frame 3-5, a second short threaded rod 3-6, a first helical gear 3-7, a middle helical gear 3-8, a second helical gear 3-9, and an internal cylinder 3-10, a hydraulic cylinder 2-4 is fixedly installed in a groove of the bar-shaped frame 3-1, the second displacement motor 3-2 is fixedly installed in a groove arranged on the bar-shaped frame 3-1, the first short threaded rod 3-3 is fixedly installed at an output end of the second displacement motor 3-2, the first short threaded rod 3-3 is fixedly installed with the first helical gear 3-7, a first short threaded rod 3-3 is rotatably arranged in a through hole arranged on an n-shaped frame 3-5, a first bevel gear 3-7 is meshed with a middle bevel gear 3-8, the middle bevel gear 3-8 is rotatably arranged in a groove arranged on the n-shaped frame 3-5, the middle bevel gear 3-8 is meshed with a second bevel gear 3-9, the second bevel gear 3-9 is fixedly arranged on a second short threaded rod 3-6, the second short threaded rod 3-6 is rotatably arranged in a through hole arranged on the n-shaped frame 3-5, the second short threaded rod 3-6 is rotatably arranged in a groove arranged on a strip-shaped frame 3-1, a limiting cylinder 3-4 is fixedly arranged on the strip-shaped frame 3-1, the output end of the limiting cylinder 3-4 is inserted into a groove arranged on the n-shaped frame 3-5, an internal cylinder 3-10 is fixedly arranged in a through hole arranged on the n-shaped frame 3-5, the output end of the internal cylinder 3-10 is inserted into a groove arranged on the middle bevel gear 3-8.
The fifth concrete implementation mode:
the fourth embodiment is further described with reference to fig. 1-17, wherein the solder paste scraping mechanism 4 includes a Z-shaped sliding plate 4-1, a first gear 4-2, a second gear 4-3, a first solder paste scraping plate 4-4, a second solder paste scraping plate 4-5, a third gear 4-6, a fourth gear 4-7, an intermediate connecting plate 4-8, a fifth gear 4-9, a sixth gear 4-10, a top slider 4-11, a first tilting motor 4-12, a second tilting motor 4-13, a rotating motor 4-14, a double gear 4-15, a driving gear 4-16, a strip-shaped connecting plate 4-17, and a bottom motor 4-18, the first gear 4-2 is fixedly mounted at the output end of the first tilting motor 4-12, the first gear 4-2 is engaged with the second gear 4-3, the second gear 4-3 is fixedly arranged on a first solder paste scraper 4-4, the Z-shaped sliding plate 4-1 is slidably arranged in a groove arranged on the strip-shaped frame 3-1, a third gear 4-6 is fixedly arranged on a second solder paste scraper 4-5, the third gear 4-6 is engaged with a fourth gear 4-7, the fourth gear 4-7 is fixedly arranged at the output end of a second tilting motor 4-13, the second tilting motor 4-13 is fixedly arranged in a groove arranged on a middle connecting plate 4-8, the middle connecting plate 4-8 is hinged with the second solder paste scraper 4-5, a sixth gear 4-10 is fixedly arranged on the middle connecting plate 4-8, the sixth gear 4-10 is rotatably arranged in a groove arranged on a top sliding piece 4-11, a rotating motor 4-14 is fixedly arranged in the other groove of the top slider 4-11, a fifth gear 4-9 is fixedly arranged at the output end of the rotating motor 4-14, the fifth gear 4-9 is engaged with a sixth gear 4-10, the top slider 4-11 is slidably arranged in the groove arranged on the strip frame 3-1, the top slider 4-11 is in threaded connection with a first short threaded rod 3-3, the other top slider 4-11 is in threaded connection with a second short threaded rod 3-6, a bottom motor 4-18 is fixedly arranged in the through hole on the Z-shaped slider 4-1, a driving gear 4-16 is fixedly arranged at the output end of the bottom motor 4-18, the driving gear 4-16 is engaged with a double gear 4-15, the double gear 4-15 is rotatably arranged in the through hole arranged on the Z-shaped slider 4-1, the double gears 4-15 are fixedly connected with the strip-shaped connecting plates 4-17, the inclined motors 4-12 are fixedly arranged in grooves formed in the strip-shaped connecting plates 4-17, and the strip-shaped connecting plates 4-17 are hinged with the solder paste scraping plates 4-4.
The invention relates to an SMT reflow soldering tin paste coating device, which has the working principle that:
inserting the hollow steel plate into the groove of the hollow steel plate clamp 1-6, rotating the positioning screw 1-7 to enable the positioning screw 1-7 to press the hollow steel plate to fix, starting the conveying motor 1-1, enabling the conveying motor 1-1 to drive the conveying belt 1-3 to rotate through the conveying belt main shaft 1-2, enabling the PCB on the conveying belt 1-3 to move forwards, stopping conveying the conveying belt 1-3 under the action of the sensor 2-2 when the PCB moves to a specified position, starting the jacking motor 1-8, enabling the jacking motor 1-8 to drive the plurality of cam shafts 1-11 to rotate under the action of the chains 1-12 and the synchronous chain wheels 1-13, jacking the conveying belt 1-3 at the convex positions of the cam shafts 1-11, and adjusting the slider 1-5 to slide on the base 1-9, the springs 1-10 are pulled, the conveyor belts 1-3 are jacked to press the PCB on the conveyor belts to the hollowed steel plate and contact with the hollowed steel plate, the first displacement mechanism 2, the second displacement mechanism 3 and the solder paste scraping plate mechanism 4 perform solder paste coating operation at the moment, after the solder paste coating is completed, the cam shafts 1-11 fall back to enable the PCB to be separated from the hollowed steel plate, the conveyor belts 1-3 are started to convey the coated PCB out, so that manual PCB adding is replaced, and the production efficiency is improved.
Adding solder paste to the hollow steel plate through external equipment or manual work, starting the first displacement motor 2-6, driving the long threaded rod 2-3 to rotate by the first displacement motor 2-6, so that the screw slider 2-5 slides on the long threaded rod, driving the second displacement mechanism 3 and the solder paste scraping plate mechanism 4 to move, and extruding the solder paste into the designated position of the PCB through the hollow steel plate in the moving process.
The first gear 4-2 drives the second gear 4-3 to rotate through the first tilting motor 4-12, so that the first solder paste scraper 4-4 tilts, the fourth gear 4-7 drives the third gear 4-6 to rotate through the second tilting motor 4-13, so that the second solder paste scraper 4-5 and the first solder paste scraper 4-4 tilt synchronously, the hydraulic cylinder 2-4 is started, the hydraulic cylinder 2-4 extends to enable the tilted first solder paste scraper 4-4 and the second solder paste scraper 4-5 to keep contact with the hollow steel plate, so that the first solder paste scraper 4-4 and the second solder paste scraper 4-5 can better extrude solder paste onto the PCB through the hollow steel plate, and the amount of the solder paste on the hollow steel plate is adapted by randomly adjusting the tilting angles of the first solder paste scraper 4-4 and the second solder paste scraper 4-5, the extrusion force of the solder paste coating can be ensured, and the coverage area of the extruded solder paste can be ensured.
When the first solder paste scraper 4-4 and the second solder paste scraper 4-5 move from one end to the other end, the rotating motors 4-14 and the bottom motors 4-18 are respectively started, the rotating motors 4-14 drive the sixth gears 4-10 to rotate 180 degrees through the fifth gears 4-9, so that the middle connecting plate 4-8 drives the second solder paste scraper 4-5 to rotate 180 degrees, the bottom motors 4-18 drive the double gears 4-15 to rotate 180 degrees through the driving gears 4-16, the strip-shaped connecting plates 4-17 drive the first solder paste scraper 4-4 to rotate 180 degrees, and at the moment, the first solder paste scraper 4-4 and the second solder paste scraper 4-5 are turned over, so that one surface is always in contact with solder paste, and the phenomenon of waste caused by the fact that the solder paste is adhered to the surface is avoided.
The limiting cylinder 3-4 contracts to be separated from the n-shaped frame 3-5, the output end of the inner cylinder 3-10 is ensured to be inserted into the middle bevel gear 3-8, the displacement motor II 3-2 is started, the displacement motor II 3-2 drives the short threaded rod I3-3 and the short threaded rod II 3-6 to rotate together, so that the top slider 4-11 slides on the strip-shaped frame 3-1, the third gear 4-6 is driven to move when the top slider 4-11 moves, the third gears 4-6 on two sides clamp the solder paste scraper I4-4 to move synchronously, the Z-shaped sliding plate 4-1 slides on the strip-shaped frame 3-1, the purpose of synchronous movement is realized, and the device can be suitable for the hollowed positions on different hollowed steel plates; when the limiting cylinder 3-4 is inserted into the n-shaped frame 3-5, the inner cylinder 3-10 contracts to separate from the middle bevel gear 3-8, the displacement motor II 3-2 is started, the displacement motor II 3-2 drives the first bevel gear 3-7 to rotate through the short threaded rod I3-3, the first bevel gear 3-7 drives the second bevel gear 3-9 to rotate through the middle bevel gear 3-8, so that the rotating direction of the short threaded rod II 3-6 is opposite to the rotating direction of the short threaded rod I3-3, the top sliding parts 4-11 on two sides move relatively, the solder paste scraping plates on two sides 4-5 rotate 90 degrees at the moment, and the solder paste scraping plates on two sides 4-5 are attached to the side edges of the solder paste scraping plates I4-4 under the driving of the top sliding parts 4-11 on two sides, when the first solder paste scraper 4-4 and the second solder paste scraper 4-5 are used for solder paste coating, the phenomenon of extrusion from two sides of the scrapers due to excessive solder paste can be avoided, and the problem of repeatedly collecting the extruded solder paste on the hollow steel plate is also avoided.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.
Claims (5)
1. The utility model provides a SMT reflow soldering tin cream coating device, includes conveying mechanism (1), first displacement mechanism (2), second displacement mechanism (3) and tin cream scraping plate mechanism (4), its characterized in that: the tin paste scraping device is characterized in that the first displacement mechanism (2) is fixedly arranged on the conveying mechanism (1), the second displacement mechanism (3) is fixedly arranged on the first displacement mechanism (2), the tin paste scraping plate mechanism (4) is slidably arranged in a groove formed in the second displacement mechanism (3), and the second displacement mechanism (3) is in threaded connection with the tin paste scraping plate mechanism (4).
2. An SMT reflow solder paste application apparatus according to claim 1, wherein: the conveying mechanism (1) comprises a conveying motor (1-1), a conveying belt main shaft (1-2), a conveying belt (1-3), a conveying belt auxiliary shaft (1-4), an adjusting slider (1-5), a hollowed steel plate clamp (1-6), a positioning screw (1-7), a motor (1-8) for jacking, a base (1-9), a spring (1-10), a cam shaft (1-11), a chain (1-12) and a synchronous chain wheel (1-13), wherein the conveying motor (1-1) is fixedly arranged on the base (1-9), the hollowed steel plate clamp (1-6) is fixedly arranged on the base (1-9), a threaded through hole formed in the hollowed steel plate clamp (1-6) is in threaded connection with the positioning screw (1-7), the spring (1-10) is fixedly arranged on the base (1-9), an adjusting slider (1-5) is fixedly arranged on a spring (1-10), the adjusting slider (1-5) is slidably arranged in a groove arranged on a base (1-9), a conveyor belt auxiliary shaft (1-4) is rotatably arranged in the groove arranged on the adjusting slider (1-5), the conveyor belt auxiliary shaft (1-4) is meshed with a conveyor belt (1-3), the conveyor belt (1-3) is meshed with a conveyor belt main shaft (1-2), the conveyor belt main shaft (1-2) is fixedly arranged at the output end of a conveying motor (1-1), the conveyor belt main shaft (1-2) is rotatably arranged in the groove arranged on the base (1-9), a jacking motor (1-8) is fixedly arranged in a through hole arranged on the base (1-9), and a synchronous chain wheel (1-13) is fixedly arranged at the output end of the jacking motor (1-8), other synchronous chain wheels (1-13) are rotatably arranged in grooves arranged on the base (1-9), cam shafts (1-11) are fixedly arranged on the synchronous chain wheels (1-13), the cam shafts (1-11) are rotatably arranged in the grooves arranged on the base (1-9), and the chains (1-12) are meshed with the synchronous chain wheels (1-13).
3. An SMT reflow solder paste application apparatus according to claim 2, wherein: the first displacement mechanism (2) comprises a frame (2-1), a sensor (2-2), a long threaded rod (2-3), a hydraulic cylinder (2-4), a thread sliding piece (2-5) and a displacement motor I (2-6), wherein the frame (2-1) is fixedly arranged on a hollowed steel plate clamp (1-6), the sensor (2-2) is fixedly arranged on the frame (2-1), one end of the long threaded rod (2-3) is rotatably arranged in a groove arranged on the frame (2-1), the other end of the long threaded rod (2-3) is fixedly arranged at the output end of the displacement motor I (2-6), the displacement motor I (2-6) is fixedly arranged in a through hole arranged on the frame (2-1), the thread sliding piece (2-5) is slidably arranged in the groove arranged on the frame (2-1), the screw slider (2-5) is in threaded connection with the long threaded rod (2-3), and the screw slider (2-5) is fixedly arranged at the output end of the hydraulic cylinder (2-4).
4. An SMT reflow solder paste application apparatus according to claim 3, wherein: the second displacement mechanism (3) comprises a strip-shaped frame (3-1), a second displacement motor (3-2), a first short threaded rod (3-3), a limiting cylinder (3-4), an n-shaped frame (3-5), a second short threaded rod (3-6), a first helical gear (3-7), a middle helical gear (3-8), a second helical gear (3-9) and an internal cylinder (3-10), a hydraulic cylinder (2-4) is fixedly installed in a groove of the strip-shaped frame (3-1), the second displacement motor (3-2) is fixedly installed in a groove arranged on the strip-shaped frame (3-1), the first short threaded rod (3-3) is fixedly installed at the output end of the second displacement motor (3-2), and the first helical gear (3-7) is fixedly installed on the first short threaded rod (3-3), a first short threaded rod (3-3) is rotatably arranged in a through hole arranged on the n-shaped frame (3-5), a first helical gear (3-7) is meshed with a middle helical gear (3-8), the middle helical gear (3-8) is rotatably arranged in a groove arranged on the n-shaped frame (3-5), the middle helical gear (3-8) is meshed with a second helical gear (3-9), the second helical gear (3-9) is fixedly arranged on a second short threaded rod (3-6), the second short threaded rod (3-6) is rotatably arranged in the through hole arranged on the n-shaped frame (3-5), the second short threaded rod (3-6) is rotatably arranged in a groove arranged on the bar-shaped frame (3-1), a limiting cylinder (3-4) is fixedly arranged on the bar-shaped frame (3-1), the output end of the limiting cylinder (3-4) is inserted into a groove arranged on the n-shaped frame (3-5), an internal cylinder (3-10) is fixedly arranged in a through hole arranged on the n-shaped frame (3-5), and the output end of the internal cylinder (3-10) is inserted into a groove arranged on the middle helical gear (3-8).
5. An SMT reflow solder paste application apparatus according to claim 4, wherein: the solder paste scraping mechanism (4) comprises a Z-shaped sliding plate (4-1), a first gear (4-2), a second gear (4-3), a first solder paste scraping plate (4-4), a second solder paste scraping plate (4-5), a third gear (4-6), a fourth gear (4-7), an intermediate connecting plate (4-8), a fifth gear (4-9), a sixth gear (4-10), a top sliding piece (4-11), a first inclined motor (4-12), a second inclined motor (4-13), a rotating motor (4-14), a double gear (4-15), a driving gear (4-16), a strip connecting plate (4-17) and a bottom motor (4-18), wherein the first gear (4-2) is fixedly installed at the output end of the first inclined motor (4-12), the first gear (4-2) is meshed with the second gear (4-3), the second gear (4-3) is fixedly arranged on the first solder paste scraper (4-4), the Z-shaped sliding plate (4-1) is slidably arranged in a groove arranged on the strip-shaped frame (3-1), the second solder paste scraper (4-5) is fixedly provided with a third gear (4-6), the third gear (4-6) is meshed with a fourth gear (4-7), the fourth gear (4-7) is fixedly arranged at the output end of the second tilting motor (4-13), the second tilting motor (4-13) is fixedly arranged in a groove arranged on the middle connecting plate (4-8), the middle connecting plate (4-8) is hinged with the second solder paste scraper (4-5), the sixth gear (4-10) is fixedly arranged on the middle connecting plate (4-8), a sixth gear (4-10) is rotatably arranged in a groove arranged on a top sliding piece (4-11), a rotating motor (4-14) is fixedly arranged in the other groove of the top sliding piece (4-11), a fifth gear (4-9) is fixedly arranged at the output end of the rotating motor (4-14), the fifth gear (4-9) is meshed with the sixth gear (4-10), the top sliding piece (4-11) is slidably arranged in a groove arranged on a strip-shaped frame (3-1), the top sliding piece (4-11) is in threaded connection with a first short threaded rod (3-3), the other top sliding piece (4-11) is in threaded connection with a second short threaded rod (3-6), a bottom motor (4-18) is fixedly arranged in a through hole on a Z-shaped sliding plate (4-1), the output end of the bottom motor (4-18) is fixedly provided with a driving gear (4-16), the driving gear (4-16) is meshed with the double gears (4-15), the double gears (4-15) are rotatably arranged in through holes formed in the Z-shaped sliding plate (4-1), the double gears (4-15) are fixedly connected with a bar-shaped connecting plate (4-17), a first inclined motor (4-12) is fixedly arranged in a groove formed in the bar-shaped connecting plate (4-17), and the bar-shaped connecting plate (4-17) is hinged with a first solder paste scraper (4-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210502407.9A CN114900989A (en) | 2022-05-10 | 2022-05-10 | SMT reflow soldering tin cream coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210502407.9A CN114900989A (en) | 2022-05-10 | 2022-05-10 | SMT reflow soldering tin cream coating device |
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| Publication Number | Publication Date |
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| CN114900989A true CN114900989A (en) | 2022-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210502407.9A Pending CN114900989A (en) | 2022-05-10 | 2022-05-10 | SMT reflow soldering tin cream coating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116761350A (en) * | 2023-08-22 | 2023-09-15 | 江苏长实基业电气科技有限公司 | Circuit board solder paste printing device |
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2022
- 2022-05-10 CN CN202210502407.9A patent/CN114900989A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116761350A (en) * | 2023-08-22 | 2023-09-15 | 江苏长实基业电气科技有限公司 | Circuit board solder paste printing device |
| CN116761350B (en) * | 2023-08-22 | 2023-10-27 | 江苏长实基业电气科技有限公司 | Circuit board solder paste printing device |
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Application publication date: 20220812 |
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