CN113954505A - Solder printing equipment for circuit board - Google Patents
Solder printing equipment for circuit board Download PDFInfo
- Publication number
- CN113954505A CN113954505A CN202111103102.2A CN202111103102A CN113954505A CN 113954505 A CN113954505 A CN 113954505A CN 202111103102 A CN202111103102 A CN 202111103102A CN 113954505 A CN113954505 A CN 113954505A
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- Prior art keywords
- protection casing
- steel mesh
- printing
- solder
- sides
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- 238000007639 printing Methods 0.000 title claims abstract description 73
- 229910000679 solder Inorganic materials 0.000 title claims abstract description 57
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 238000004140 cleaning Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 description 6
- 238000007790 scraping Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 206010034960 Photophobia Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 208000013469 light sensitivity Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/36—Screens, Frames; Holders therefor flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/44—Squeegees or doctors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
- B41F35/003—Cleaning arrangements or devices for screen printers or parts thereof
- B41F35/005—Cleaning arrangements or devices for screen printers or parts thereof for flat screens
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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
- H05K3/3457—Solder materials or compositions; Methods of application thereof
- H05K3/3485—Applying solder paste, slurry or powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/50—Screen printing machines for particular purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2235/00—Cleaning
- B41P2235/10—Cleaning characterised by the methods or devices
- B41P2235/20—Wiping devices
- B41P2235/22—Rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Screen Printers (AREA)
Abstract
The invention relates to a printing device, in particular to a solder printing device for a circuit board. Mainly provides a solder printing device for a circuit board, which is used for positioning the circuit board and hole positions and driving a scraper to automatically operate to realize printing. A solder printing apparatus for a circuit board, comprising: workstation, protection casing, locking knob, printing steel mesh, scraper component and automatic printing mechanism, the workstation top is equipped with the protection casing, and removable printing steel mesh has been placed to protection casing upper portion slidingtype, and the equal symmetrical screw thread formula in protection casing top both sides is equipped with carries out the locking knob fixed to the printing steel mesh, and the protection casing top is equipped with scraper component, and protection casing top one side is equipped with automatic printing mechanism. The steel mesh is removable hole site template, can push into the protection casing with the steel mesh in, uses the locking knob to fix the steel mesh afterwards, and the tight piece of clamp can be adjusted well in advance to the steel mesh during, cooperates accurate hole site printing.
Description
Technical Field
The invention relates to a printing device, in particular to a solder printing device for a circuit board.
Background
SMT, surface mount technology, mainly utilizes a mounter to mount some microminiature parts on a PCB board, and the production flow comprises printing solder paste, mounting the parts by a mounter, passing through a reflow furnace and manufacturing inspection.
The solder paste is a novel welding material produced along with SMT, is a paste mixture formed by mixing solder powder, soldering flux, other surfactants, thixotropic agents and the like, is printed on a circuit board and then is welded by adopting a common reflow soldering mode, so that the good conductivity of the circuit board can be ensured, the better heat conduction effect can be realized, the interface thermal resistance can be greatly reduced, and the packaging cost can be greatly reduced.
Among the prior art, the SMT printing finished product all uses the cell board that has a plurality of hole sites, place the cell board on the circuit board, aim at the position that needs the printing, fall the tin cream on the cell board, use soft scraper blade to drive the tin cream and make a round trip to scrape and wipe, the realization is printed the hole site of circuit board, the manual work is aimed at the hole site precision not high, influence finished product quality, manual operation efficiency is not high simultaneously, consequently, need design one kind and fix a position circuit board and hole site, it realizes being used for circuit board solder lithography apparatus of printing to drive the automatic function of scraper blade.
Disclosure of Invention
In order to overcome the defects that the precision of the manual hole position alignment is not high, the quality of a finished product is influenced, and the manual operation efficiency is not high, the technical problem of the invention is as follows: the solder printing equipment for the circuit board is used for positioning the circuit board and the hole position and driving the scraper to automatically operate to realize printing.
The technical implementation scheme of the invention is as follows: the utility model provides a be used for circuit board solder lithography apparatus, is including workstation, protection casing, locking knob, printing steel mesh, scraper component and automatic printing mechanism, and the workstation top is equipped with the protection casing, and removable printing steel mesh has been placed to protection casing upper portion slidingtype, and the equal symmetrical screw thread formula in protection casing top both sides is equipped with the locking knob that carries out the fixing to the printing steel mesh, and the protection casing top is equipped with the scraper component, and protection casing top one side is equipped with automatic printing mechanism.
More preferably, the scraper subassembly is including the mounting bracket, the guide block, first mount pad, first electric putter, the installation knob, solder scraper and starting switch, the protection casing top is equipped with the mounting bracket, slidingtype connection has the guide block between the mounting bracket inner wall both sides, the guide block bottom is equipped with first mount pad, first mount pad bottom is equipped with first electric putter, first electric putter's telescopic link bottom is equipped with the mounting panel, the mounting panel bottom is equipped with the solder scraper, symmetrical screw thread formula is equipped with the installation knob between solder scraper and the mounting panel, workstation top one side is equipped with starting switch.
More preferably, automatic printing mechanism is equipped with first supporting seat including first supporting seat, a driving motor, first lead screw and a distance sensor in protection casing top one side, and first supporting seat top is equipped with a driving motor, and the rotary type is connected with first lead screw between the mounting bracket upper portion both sides, and the protection casing top is equipped with a distance sensor.
More preferably, still including feeding climbing mechanism, feeding climbing mechanism is including the second mount pad, second electric putter, the third mount pad, the guide rail frame, third electric putter, the mount table, photoelectric sensor and second distance sensor, workstation top one side is equipped with the second mount pad, second mount pad top is equipped with second electric putter, protection casing inner wall both sides all are equipped with the guide rail frame, sliding connection has the third mount pad between the guide rail frame, third mount pad middle part is equipped with third electric putter, third electric putter's telescopic link top is equipped with the mount table, mount table inner wall one side is equipped with photoelectric sensor, workstation top middle side is equipped with second distance sensor.
More preferred is, still including feeding agencies, feeding agencies is including pressing down the clamp plate, torque spring and locating pin, and four sides of mount table inner wall bottom all are equipped with the locating pin, and the equal rotary type in mount table both sides is equipped with presses down the clamp plate, press down the clamp plate both sides all with the mount table between be connected with torque spring.
More preferably, still including the clean mechanism of steel mesh, the clean mechanism of steel mesh is including the installing support, the second supporting seat, second driving motor, the second lead screw, the connecting block, clean wheel and third distance sensor, protection casing inner wall both sides all are equipped with the installing support, slidingtype connection has the connecting block between the installing support, connecting block one side rotary type is equipped with the clean wheel of clearing up the printing steel mesh, workstation top symmetry is equipped with the second supporting seat, second supporting seat top all is equipped with second driving motor, be connected with the second lead screw on second driving motor's the output shaft, workstation top one side is equipped with third distance sensor.
More preferably, still including the steel mesh mechanism of adjusting well, the steel mesh mechanism of adjusting well all is equipped with 3 support frames including support frame, clamp tight piece and reset spring in the protection casing upper portion both sides, and slidingtype is connected with between the support frame of vertical homonymy presss from both sides tight piece, presss from both sides between tight piece and the support frame outside and all is connected with reset spring.
More preferably, the device also comprises a control box, the control box is arranged on the left front side of the top of the workbench, a switching power supply, a power supply module and a control module are installed in the control box, the switching power supply supplies power to the whole device, the output end of the switching power supply is electrically connected with the power supply module, the power supply module is connected with a power supply main switch through a circuit, and the power supply module is electrically connected with the control module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit, the first distance sensor, the second distance sensor, the third distance sensor, the photoelectric sensor and the starting switch are electrically connected with the control module, and the first electric push rod, the second electric push rod, the third electric push rod, the first driving motor and the second driving motor are connected with the control module through peripheral circuits.
Compared with the prior art, the invention has the following advantages: 1. the steel mesh is a replaceable hole site template, the steel mesh can be pushed into the protective cover, then the steel mesh is fixed by using the locking knob, and the clamping block can be aligned in advance to the steel mesh during the period to match with accurate hole site printing;
2. placing solder paste on the rear side of the top of the steel mesh, and pushing the solder paste by moving the solder scraper back and forth so as to realize secondary printing and realize basic functions;
3. the pressing plate is pushed downwards to rotate, the printed circuit board can be tilted by upward rotation of the inner side of the pressing plate, the circuit board is convenient to take, and the influence on solder paste when a person tries to take out the circuit board by hands is prevented;
4. the cleaning wheel rotates to clean up the attached solder paste on the steel mesh, and the situation that the difference of the solder paste amount printed on the circuit board is too large and the later use of the circuit board is influenced is prevented.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a schematic perspective view of a third embodiment of the present invention.
Fig. 4 is a schematic perspective view of a first embodiment of the doctor assembly of the present invention.
Fig. 5 is a schematic perspective view of a second embodiment of the doctor assembly of the present invention.
FIG. 6 is a schematic perspective view of a first embodiment of an automatic printing mechanism according to the present invention.
FIG. 7 is a schematic perspective view of a second embodiment of the automatic printing mechanism of the present invention.
Fig. 8 is a schematic perspective view of a first embodiment of the feed jack of the present invention.
Fig. 9 is a schematic perspective view of a second embodiment of the jacking mechanism of the present invention.
FIG. 10 is a schematic perspective view of a first steel net cleaning mechanism according to the present invention.
FIG. 11 is a schematic perspective view of a second steel net cleaning mechanism according to the present invention.
FIG. 12 is a schematic sectional view showing the structure of the steel net cleaning mechanism according to the present invention.
Fig. 13 is a schematic perspective view of a first steel mesh alignment mechanism according to the present invention.
Fig. 14 is a schematic perspective view of a second steel mesh alignment mechanism according to the present invention.
Fig. 15 is a schematic perspective view of a material taking mechanism according to the present invention.
FIG. 16 is an enlarged view of part A of the present invention.
Fig. 17 is a circuit block diagram of the present invention.
Fig. 18 is a schematic circuit diagram of the present invention.
The meaning of the reference symbols in the figures: 1. a workbench, 2, a control box, 3, a protective cover, 4, a locking knob, 5, a printing steel mesh, 6, a scraper component, 61, a mounting frame, 62, a guide block, 63, a first mounting seat, 64, a first electric push rod, 65, a mounting knob, 66, a solder scraper, 67, a starting switch, 7, an automatic printing mechanism, 71, a first supporting seat, 72, a first driving motor, 73, a first screw rod, 74, a first distance sensor, 8, a feeding jacking mechanism, 81, a second mounting seat, 82, a second electric push rod, 83, a third mounting seat, 84, a guide rail frame, 85, a third electric push rod, 86, a mounting table, 87, a photoelectric sensor, 88, a second distance sensor, 9, a steel mesh cleaning mechanism, 91, a mounting bracket, 92, a second supporting seat, 93, a second driving motor, 94, a second screw rod, 95, a connecting block, 96, a cleaning wheel, 97. the device comprises a third distance sensor 10, a steel mesh alignment mechanism 101, a support frame 102, a clamping block 103, a return spring 11, a material taking mechanism 111, a pressing plate 112, a torsion spring 113 and a positioning pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The utility model provides a be used for circuit board solder printing equipment, as shown in figure 1, figure 2, figure 3, figure 4, figure 5 and figure 7, including workstation 1, protection casing 3, locking knob 4, printing steel mesh 5, scraper subassembly 6 and automatic printing mechanism 7, workstation 1 top is equipped with protection casing 3, printing steel mesh 5 has been placed to the sliding type in front of protection casing 3 upper portion, the equal front and back symmetry screw thread formula in the left and right sides in protection casing 3 top is equipped with locking knob 4, protection casing 3 top is equipped with scraper subassembly 6, protection casing 3 top rear side is equipped with automatic printing mechanism 7.
Automatic printing mechanism 7 is including first support seat 71, a driving motor 72, first lead screw 73 and a distance sensor 74, protection casing 3 top rear side is equipped with first support seat 71, first support seat 71 top is equipped with a driving motor 72, the rotary type is connected with first lead screw 73 between the both sides around the mounting bracket 61 upper portion, first lead screw 73 rear side and a driving motor 72's output shaft, and first lead screw 73 is connected with guide block 62 screw thread formula, protection casing 3 top is equipped with a distance sensor 74, a distance sensor 74 is located first support seat 71 front side.
The worker can push the printing steel mesh 5 with the template hole sites into the protective cover 3, then rotate the locking knob 4 to fix the printing steel mesh 5 on the protective cover 3, then place solder paste on the rear side of the top of the printing steel mesh 5, place a circuit board below the hole sites of the printing steel mesh 5 by hands, send a signal by the short press start switch 67, the control module receives the signal and then controls the first driving motor 72 to perform forward and reverse operations with a period of 1 minute, the output shaft of the first driving motor 72 rotates to drive the guide block 62 to perform forward and backward movement by the first lead screw 73, the guide block 62 moves forward to drive the first electric push rod 64 and the solder scraper 66 to move forward, the first distance sensor 74 sends a signal when detecting that the distance between the first distance sensor and the solder scraper 66 is greater than a first preset value, the control module receives the signal and then controls the first electric push rod 64 to operate, the telescopic rod of the first electric push rod 64 extends for 1 second to drive the solder scraper 66 to move downward, thus, the solder scraper 66 moves forward continuously to scrape the solder paste for one time, the solder paste can be printed on the circuit board through the hole site, when the solder scraper 66 moves forward to the front side of the printing steel mesh 5, i.e. completing one scraping after 25 seconds, the first distance sensor 74 sends a signal when detecting that the distance between the solder scraper 66 and the control module receives the signal to control the first electric push rod 64 to perform positive and negative operation for one time period of 2 seconds, the telescopic rod of the first electric push rod 64 shortens 1 second to drive the solder scraper 66 to move upward and not to contact with the solder paste, the telescopic rod of the first electric push rod 64 extends 1 second while the first electric push rod 64 continues to move forward to drive the solder scraper 66 to move downward to be located at the front side of the solder paste, after 3 seconds, the first driving motor 72 operates in a reverse direction to drive the guide block 62 and the above components to move backward to reset, the solder scraper 66 moves backward to drive the solder paste to scrape for a second scraping, the secondary scraping finishes, the solder scraper 66 moves backward to reset, the first distance sensor 74 detects that the distance between the first distance sensor and the solder scraper 66 is no longer greater than a first preset value, the telescopic rod of the first electric push rod 64 shortens 1 second to drive the solder scraper 66 to move upward to reset, the first driving motor 72 automatically stops operating, and the working personnel take away the printed circuit board, if printing is needed again, the operation is repeated.
Example 2
Based on the embodiment 1, as shown in fig. 1, 2, 6, 8, 9, 15 and 16, the feeding and jacking mechanism 8 further comprises a feeding and jacking mechanism 8, the feeding and jacking mechanism 8 comprises a second mounting seat 81, a second electric push rod 82, a third mounting seat 83, a guide rail frame 84, a third electric push rod 85, a mounting table 86, a photoelectric sensor 87 and a second distance sensor 88, the second mounting seat 81 is arranged on the rear side of the top of the working platform 1, the second electric push rod 82 is arranged on the top of the second mounting seat 81, the guide rail frames 84 are arranged on the left and right sides of the inner wall of the protective cover 3, the third mounting seat 83 is slidably connected between the guide rail frames 84, the rear side of the third mounting seat 83 is connected with the telescopic rod of the second electric push rod 82, the third electric push rod 85 is arranged in the middle of the third mounting seat 83, the mounting table 86 is arranged on the top of the telescopic rod of the third electric push rod 85, the photoelectric sensor 87 is arranged on the rear side of the inner wall of the mounting table 86, the second distance sensor 88 is provided on the top inside of the table 1.
Still including extracting mechanism 11, extracting mechanism 11 is including pressing panel 111, torsion spring 112 and locating pin 113, and four sides all are equipped with locating pin 113 in mount table 86 inner wall bottom, and the equal rotary type in the left and right sides of mount table 86 is equipped with pressing panel 111, and pressing panel 111 around both sides all and be connected with torsion spring 112 between the mount table 86.
The worker can place the circuit board between the positioning pins 113 on the top of the mounting table 86, the photoelectric sensor 87 sends a signal when detecting that the light sensitivity is less than the preset value, the control module receives the signal and further controls the second electric push rod 82 to operate for 2 seconds and then stop operating, the telescopic rod of the second electric push rod 82 is shortened for 2 seconds to drive the third mounting seat 83 and the above components to move backwards to the position below the hole site, meanwhile, the mounting table 86 moves backwards until the second distance sensor 88 contacts, the second distance sensor 88 sends a signal when detecting that the distance between the second distance sensor 88 and the mounting table 86 is less than the preset value, the control module receives the signal and further controls the third electric push rod 85 to operate once, the telescopic rod of the third electric push rod 85 extends for 1 second to drive the circuit board to move upwards through the mounting table 86 to abut against the printing steel mesh 5, and complete printing, when the second distance sensor 74 detects that the distance between the first distance sensor 74 and the solder scraper 66 is no longer than the first preset value, control module received signal and then control third electric putter 85 and carry out a reverse function and second electric putter 82 time delay 1 second and carry out a reverse function, third electric putter 85's telescopic link shortens 1 second and drives the circuit board that the printing finishes and move down and no longer contact with printed steel mesh 5, second electric putter 82's telescopic link extension 2 seconds afterwards drives mount table 86 and the circuit board that the printing finishes and moves forward, move forward to reseing when mount table 86, manual promotion both sides are pressed down the rotation of clamp plate 111, so press the inboard upwards rotation of clamp plate 111 alright with the circuit board perk, the cooperation circuit board take, torque spring 112 takes place deformation this moment, it finishes to take, stop promoting clamp plate 111, torque spring 112 resets and drives clamp plate 111 rotation and reset.
Example 3
On the basis of the embodiment 2, as shown in figure 1, figure 2, figure 10, figure 11, figure 12, figure 13 and figure 14, fig. 17 and 18 show, still including the clean mechanism 9 of steel mesh, the clean mechanism 9 of steel mesh is including installing support 91, second supporting seat 92, second driving motor 93, second lead screw 94, connecting block 95, clean wheel 96 and third distance sensor 97, the 3 inner wall left and right sides of protection casing all are equipped with installing support 91, sliding connection has connecting block 95 between installing support 91, connecting block 95 front side rotation type is equipped with clean wheel 96, 1 top bilateral symmetry of workstation is equipped with second supporting seat 92, second supporting seat 92 top all is equipped with second driving motor 93, the output shaft front side of second driving motor 93 all is connected with second lead screw 94 through the shaft coupling, second lead screw 94 all is connected with connecting block 95 screw-type, workstation 1 top front side is equipped with third distance sensor 97.
The steel mesh aligning mechanism 10 comprises a support frame 101, clamping blocks 102 and reset springs 103, the left side and the right side of the upper portion of the protective cover 3 are respectively provided with 3 support frames 101, the clamping blocks 102 are connected between the support frames 101 on the same vertical side in a sliding mode, and the reset springs 103 are connected between the clamping blocks 102 and the outer sides of the support frames 101.
When the telescopic rod of the second electric push rod 82 is shortened by 2 seconds to drive the mounting table 86 and the circuit board to move backwards and cooperate with printing, the mounting table 86 can be in contact with the third distance sensor 97 for one time, at the moment, the third distance sensor 97 can not send a signal, the telescopic rod of the second electric push rod 82 extends for 2 seconds to drive the mounting table 86 and the printed circuit board to move forwards, namely, when the mounting table 86 is in contact with the third distance sensor 97 for the second time, the third distance sensor 97 sends a signal when detecting that the distance between the telescopic rod and the mounting table 86 is smaller than a preset value, the control module receives the signal to control the second driving motor 93 to perform forward and backward operation with a cycle of 10 seconds, the output shaft of the second driving motor 93 rotates forward and backward through the second lead screw 94 to drive the connecting block 95 to move forwards and backwards for one time, the connecting block 95 moves forwards and backwards to drive the cleaning wheel 96 to move forwards and backwards, and forwards during the period, the cleaning wheel 96 is in contact with the printing steel mesh 5 to rotate, thus, the solder paste attached to the printing steel mesh 5 can be processed; when pushing into printing steel mesh 5 protection casing 3, press from both sides tight piece 102 atress and remove to the outside, reset spring 103 is stretched, push and finish, press from both sides tight piece 102 and remove to the inboard under reset spring 103's effect and adjust well printing steel mesh 5, cooperate accurate hole site printing, when needs are changed the hole site template, it no longer fixes printing steel mesh 5 to rotate locking knob 4, it can to change again to release printing steel mesh 5, reset spring 103 resets this moment and drives and press from both sides tight piece 102 to the inboard removal and reset.
The automatic control device is characterized by further comprising a control box 2, the control box 2 is arranged on the left front side of the top of the workbench 1, a switching power supply, a power supply module and a control module are installed in the control box 2, the switching power supply supplies power to the whole device, the output end of the switching power supply is electrically connected with the power supply module, a power supply main switch is connected to the power supply module through a circuit, and the power supply module is electrically connected with the control module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit, the first distance sensor 74, the second distance sensor 88, the third distance sensor 97, the photoelectric sensor 87 and the starting switch 67 are all electrically connected with the control module, and the first electric push rod 64, the second electric push rod 82, the third electric push rod 85, the first driving motor 72 and the second driving motor 93 are all connected with the control module through peripheral circuits.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A solder printing apparatus for a circuit board, comprising: workstation (1), protection casing (3), locking knob (4), printing steel mesh (5), scraper subassembly (6) and automatic printing mechanism (7), workstation (1) top is equipped with protection casing (3), removable printing steel mesh (5) have been placed to protection casing (3) upper portion slidingtype, the equal symmetrical screw thread formula in protection casing (3) top both sides is equipped with carries out locking knob (4) fixed to printing steel mesh (5), protection casing (3) top is equipped with scraper subassembly (6), protection casing (3) top one side is equipped with automatic printing mechanism (7).
2. A solder printing apparatus for circuit boards according to claim 1 wherein the doctor assembly (6) comprises: mounting bracket (61), guide block (62), first mount pad (63), first electric putter (64), installation knob (65), solder scraper (66) and starting switch (67), protection casing (3) top is equipped with mounting bracket (61), sliding connection has guide block (62) between mounting bracket (61) inner wall both sides, guide block (62) bottom is equipped with first mount pad (63), first mount pad (63) bottom is equipped with first electric putter (64), the telescopic link bottom of first electric putter (64) is equipped with the mounting panel, the mounting panel bottom is equipped with solder scraper (66), the symmetry screw thread formula is equipped with installation knob (65) between solder scraper (66) and the mounting panel, workstation (1) top one side is equipped with starting switch (67).
3. A solder printing apparatus for circuit boards according to claim 2, characterised in that the automatic printing mechanism (7) comprises: first supporting seat (71), first driving motor (72), first lead screw (73) and first distance sensor (74), protection casing (3) top one side is equipped with first supporting seat (71), and first supporting seat (71) top is equipped with first driving motor (72), and the rotary type is connected with first lead screw (73) between mounting bracket (61) upper portion both sides, and protection casing (3) top is equipped with first distance sensor (74).
4. A solder printing apparatus for circuit boards according to claim 3 further comprising a feed jacking mechanism (8), the feed jacking mechanism (8) comprising: second mount pad (81), second electric putter (82), third mount pad (83), guide rail frame (84), third electric putter (85), mount table (86), photoelectric sensor (87) and second distance sensor (88), workstation (1) top one side is equipped with second mount pad (81), second mount pad (81) top is equipped with second electric putter (82), protection casing (3) inner wall both sides all are equipped with guide rail frame (84), slidingtype is connected with third mount pad (83) between guide rail frame (84), third mount pad (83) middle part is equipped with third electric putter (85), the telescopic link top of third electric putter (85) is equipped with mount table (86), mount table (86) inner wall one side is equipped with photoelectric sensor (87), workstation (1) top middle part inboard is equipped with second distance sensor (88).
5. A solder printing apparatus for circuit boards according to claim 4 further comprising a material pick-up mechanism (11), the material pick-up mechanism (11) comprising: the installation platform comprises a pressing plate (111), a torsion spring (112) and positioning pins (113), the positioning pins (113) are arranged on four sides of the bottom of the inner wall of the installation platform (86), the pressing plate (111) is arranged on two sides of the installation platform (86) in a rotating mode, and the torsion spring (112) is connected between two sides of the pressing plate (111) and the installation platform (86).
6. A solder printing apparatus for circuit boards according to claim 5 further comprising a steel mesh cleaning mechanism (9), the steel mesh cleaning mechanism (9) comprising: installing support (91), second supporting seat (92), second driving motor (93), second lead screw (94), connecting block (95), cleaning wheel (96) and third distance sensor (97), protection casing (3) inner wall both sides all are equipped with installing support (91), slidingtype connection has connecting block (95) between installing support (91), connecting block (95) one side rotary type is equipped with cleaning wheel (96) of clearing up printing steel mesh (5), workstation (1) top symmetry is equipped with second supporting seat (92), second supporting seat (92) top all is equipped with second driving motor (93), be connected with second lead screw (94) on the output shaft of second driving motor (93), workstation (1) top one side is equipped with third distance sensor (97).
7. A solder printing apparatus for circuit boards according to claim 6 further comprising a steel mesh alignment mechanism (10), the steel mesh alignment mechanism (10) comprising: support frame (101), press from both sides tight piece (102) and reset spring (103), protection casing (3) upper portion both sides all are equipped with 3 support frames (101), and sliding type is connected with between the support frame (101) of vertical homonymy and presss from both sides tight piece (102), all is connected with reset spring (103) between pressing from both sides tight piece (102) and support frame (101) outside.
8. The solder printing device for the circuit board according to claim 7, further comprising a control box (2), wherein the control box (2) is arranged on the left front side of the top of the workbench (1), a switching power supply, a power supply module and a control module are installed in the control box (2), the switching power supply supplies power to the whole device, the output end of the switching power supply is electrically connected with the power supply module, the power supply module is connected with a power supply main switch through a circuit, and the power supply module is electrically connected with the control module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit, the first distance sensor (74), the second distance sensor (88), the third distance sensor (97), the photoelectric sensor (87) and the starting switch (67) are all electrically connected with the control module, and the first electric push rod (64), the second electric push rod (82), the third electric push rod (85), the first driving motor (72) and the second driving motor (93) are all connected with the control module through peripheral circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111103102.2A CN113954505A (en) | 2021-09-18 | 2021-09-18 | Solder printing equipment for circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111103102.2A CN113954505A (en) | 2021-09-18 | 2021-09-18 | Solder printing equipment for circuit board |
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| Publication Number | Publication Date |
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| CN113954505A true CN113954505A (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111103102.2A Withdrawn CN113954505A (en) | 2021-09-18 | 2021-09-18 | Solder printing equipment for circuit board |
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| Country | Link |
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| CN (1) | CN113954505A (en) |
Cited By (1)
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| CN116096065A (en) * | 2023-02-13 | 2023-05-09 | 芯朋半导体科技(如东)有限公司 | Automatic solder paste printing machine of duplex position |
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Application publication date: 20220121 |