CN112172317B - Multi-station circuit board printer and printing method - Google Patents
Multi-station circuit board printer and printing method Download PDFInfo
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- CN112172317B CN112172317B CN202010830958.9A CN202010830958A CN112172317B CN 112172317 B CN112172317 B CN 112172317B CN 202010830958 A CN202010830958 A CN 202010830958A CN 112172317 B CN112172317 B CN 112172317B
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- 238000007639 printing Methods 0.000 title claims abstract description 166
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 46
- 230000007704 transition Effects 0.000 claims description 22
- 238000007790 scraping Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 241000252254 Catostomidae Species 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 238000007650 screen-printing Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims 4
- 239000000463 material Substances 0.000 claims 1
- 230000000712 assembly Effects 0.000 abstract description 22
- 238000000429 assembly Methods 0.000 abstract description 22
- 238000007599 discharging Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000000391 smoking effect Effects 0.000 description 5
- 238000007664 blowing Methods 0.000 description 3
- 238000007602 hot air drying Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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
- B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles
-
- 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
- B41F15/16—Printing tables
- B41F15/18—Supports for workpieces
- B41F15/26—Supports for workpieces for articles with flat surfaces
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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
- 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
- B41F15/40—Inking units
- B41F15/42—Inking units comprising squeegees or doctors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/044—Drying sheets, e.g. between two printing stations
- B41F23/0463—Drying sheets, e.g. between two printing stations by convection
- B41F23/0473—Drying sheets, e.g. between two printing stations by convection by using steam
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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
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1216—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by screen printing or stencil printing
- H05K3/1225—Screens or stencils; Holders therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Screen Printers (AREA)
Abstract
The invention discloses a multi-station circuit board printer and a printing method. The automatic feeding device comprises a rotary table, a plurality of fixing seats and limiting assemblies matched with the fixing seats are fixed at the edge of the upper end face of the rotary table, the limiting assemblies are arranged on the inner sides of the fixing seats, feeding belts, position adjusting assemblies, printing assemblies, drying assemblies, overturning assemblies and discharging belts are sequentially and annularly distributed on the side faces of the rotary table, and the position adjusting assemblies, the printing assemblies, the drying assemblies and the overturning assemblies are all arranged above the edge of the rotary table and are in sliding connection with the rotary table. The beneficial effects of the invention are as follows: the printing quality is ensured and the printing efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field related to circuit board printing, in particular to a multi-station circuit board printer and a printing method.
Background
Along with the development and maturity of electronic technology, various electronic products are filled in daily work and life of people, and great convenience is brought to people. Among various electronic products, a circuit board is a very common and very important electronic product. The circuit board is involved in the production process in a printing process which is performed by using a circuit board printing device.
The screen printer is one kind of equipment for screen printing ink, soldering paste or adhesive paste onto paper and PCB pad, and is mainly used in electronic printing industry, screen printing mark of printed circuit board, mark of instrument casing panel, soldering paste printing in circuit board printing process, etc. At present, printing of a circuit board is finished by a semi-automatic screen printing machine, a blank circuit board is taken to the printing machine for printing, and printed matters are taken off after printing is finished, so that the blank circuit board is manually taken, and positioning is performed by manually positioning and positioning after positioning points are attached to a platform of the printing machine.
The existing circuit board printer needs a certain working experience and technology, when the circuit board printer is applied, the printing efficiency is low, the production cost is high, and the manual positioning is inaccurate, so that the printing is often inclined or misplaced, the printing quality is poor, in addition, the risk of polluting the circuit board is increased due to excessive manual intervention, and the printing quality of the circuit board is further reduced.
Disclosure of Invention
The invention provides a multi-station circuit board printer and a printing method, which are high in printing efficiency and good in printing quality, and aims to overcome the defects of low printing efficiency and poor printing quality in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a multi-station circuit board printing method comprises the following steps:
firstly, placing a circuit board to be printed on a feeding conveyor belt, and conveying the circuit board to be printed to a feeding station of a printer through the feeding conveyor belt;
Step two, after the feeding station is in place, the printing machine rotates, the circuit board rotates to a position adjusting station, a position adjusting component at the position adjusting station works, and the circuit board on the sucker is adjusted in front, back, left and right positions;
Step three, the fixing device on the printing machine works after the adjustment is finished, the position of the circuit board is fixed, the printing machine continues to rotate after the fixing is finished, and the circuit board rotates to a printing station;
Step four, after the circuit board is in place at the printing station, the printing assembly at the printing station works, the printing operation is started to be carried out on the printing surface of the circuit board, the printing assembly is reset after the printing operation is finished, the printer continues to rotate, and the circuit board is rotated to the drying station;
Step five, after the circuit board is in place at the drying station, the drying component at the drying station starts to work, the heating device on the drying component generates hot steam, the printing ink on the printing surface of the circuit board is smoked, the drying component is reset after the printing ink is dried, the printing machine continues to rotate, and the circuit board rotates to the blanking station;
Step six, after the circuit board is in place at the blanking station, the fixing device loosens the circuit board, and at the moment, the blanking assembly at the blanking station works to push the circuit board to the blanking conveyor belt for blanking, so that printing is completed.
The invention is a multi-station full-automatic assembly line technology, realizes automatic loading and unloading of the circuit board, and greatly improves the printing efficiency compared with manual loading and unloading; the position of the circuit board is adjusted through the position adjusting component, and the circuit board is fixed through the fixing device, so that the position precision of the circuit board during printing is ensured, the circuit board printing failure caused by the dislocation phenomenon of the circuit board and the printing component is avoided, and the printing quality is greatly improved; the printed circuit board is immediately smoked by the drying station, so that the ink is solidified, the ink is quickly fixed on the circuit board, the printing quality is improved, and compared with the traditional hot air drying, the air force during smoking is extremely small, the ink cannot flow around the circuit board due to blowing of the air force in the drying process, and the printing quality is further ensured.
Preferably, a circuit board overturning assembly is additionally arranged between the drying station in the fifth step and the blanking station in the sixth step, the circuit board needing to be subjected to double-sided printing is overturned, the overturned circuit board is transferred to the position adjusting station to continue to start the printing operation on the other side, and the printing requirement of the double-sided circuit board is well met.
As the preferable printing mode of the printing component in the step four is screen printing, the covering power and the adhesive force of an ink layer of the screen printing are strong, the printing mode is flexible and various, the cost is low, the printing method is very suitable for the printing process of a circuit board, the positive pressure of the screen to the printing surface of the circuit board during printing is 9-13N, the full line contact of the screen and the circuit board is ensured, the ink filling quantity of the circuit board is not influenced due to overlarge pressure, the printing integrity and the uniformity of the printing thickness are ensured, and the printing quality is further improved.
The invention also provides a multi-station circuit board printer which comprises a turntable, wherein a plurality of fixing seats and limiting assemblies matched with the fixing seats are fixed at the edge of the upper end face of the turntable, the limiting assemblies are arranged on the inner sides of the fixing seats, feeding belts, position adjusting assemblies, printing assemblies, drying assemblies, overturning assemblies and discharging belts are sequentially and annularly distributed on the side faces of the turntable, and the position adjusting assemblies, the printing assemblies, the drying assemblies and the overturning assemblies are all arranged above the edge of the turntable and are in sliding connection with the turntable.
The automatic printing machine is a multi-station full-automatic assembly line technology, a circuit board is automatically conveyed onto the fixed seat through the feeding belt, and the printed circuit board is automatically fed through the feeding belt, so that compared with manual feeding and discharging, the printing efficiency is greatly improved; the limiting component plays a limiting role when the circuit board is conveyed onto the fixed seat, and the circuit board is prevented from falling from the fixed seat in the conveying process; the position of the circuit board conveyed to the fixing seat is adjusted through the position adjusting assembly, the fixing seat works again to fix the circuit board after the adjustment, so that the position accuracy of the circuit board during printing is ensured, the circuit board printing failure caused by the dislocation phenomenon of the circuit board and the printing assembly is avoided, and the printing quality is greatly improved; the printing component is used for printing the circuit board; the printed circuit board is immediately smoked by the drying component, so that the solidification of the ink is accelerated, the ink is quickly and completely fixed on the circuit board, the printing quality is improved, and compared with the traditional hot air drying, the air force during smoking is extremely low, the ink cannot flow around the circuit board due to the blowing of the air force in the drying process, and the printing quality is further ensured.
Preferably, the height of the feeding belt is higher than that of the rotary table, a first transition disc is fixed on the feeding belt, one end of the first transition disc is arranged right below the outlet of the feeding belt, the other end of the first transition disc is located on the side face of the edge of the upper end face of the rotary table and is arranged at the same height with the fixing seat, the height of the discharging belt is lower than that of the rotary table, a second transition disc is fixed on the discharging belt, one end of the first transition disc is arranged right above the inlet of the discharging belt, the other end of the second transition disc is located on the side face of the edge of the upper end face of the rotary table and is arranged at the same height with the fixing seat, and the additionally arranged first transition disc and second transition disc enable a circuit board to be conveyed more smoothly and stably in the feeding and discharging process, and the circuit board is well prevented from falling in the feeding and discharging process.
Preferably, the middle position of the turntable is fixedly provided with an air supply box, the limiting assembly comprises an air cylinder fixed on the turntable, the air cylinder is connected with the air supply box, a vertical baffle is fixed on the air cylinder, the vertical baffle is arranged on the side surface of the fixed seat, the side surface of the vertical baffle, which is opposite to the fixed seat, is provided with a buffer layer, the upper end surface of the fixed seat is provided with a plurality of suckers, the suckers are connected with the air supply box, and the air supply box is used for providing air pressure for the air cylinder and the suckers so as to control the work of the air cylinder and the suckers; the circuit board conveyed by the feeding belt collides on the buffer layer of the vertical baffle plate to be blocked, so that the circuit board is prevented from directly sliding out of the fixing seat, and the additionally arranged buffer layer can prevent the circuit board from being broken or scratched when the circuit board collides with the vertical baffle plate; when in blanking, the vertical baffle is driven to move by the air cylinder, and the circuit board on the fixed seat is pushed onto the blanking belt; the sucking disc can generate suction force, and the circuit board with the position adjusted is fixed.
Preferably, the side surface of the turntable is provided with a lifting table I matched with the position adjusting assembly, the position adjusting assembly comprises a lifting block I arranged on the lifting table I, a fixing frame is fixed on the lower end surface of the lifting block I, the fixing frame is positioned right above the edge of the upper end surface of the turntable and is vertically fixed by two rectangular plates, two sides of the lower end surface of one rectangular plate are respectively provided with a sliding groove I, the sliding grooves I are internally and slidably connected with an adjusting plate I, the two adjusting plates I are arranged in parallel, two sides of the lower end surface of the other rectangular plate are respectively provided with a sliding groove II, the sliding grooves II are internally and slidably connected with an adjusting plate II, the two adjusting plates I and the adjusting plates II are mutually vertical, and the lifting table I is used for driving the position adjusting assembly to lift so that the position adjusting assembly can adjust a circuit board and automatically reset after the position adjusting assembly is finished; during adjustment, the first adjusting plate is located on the left side and the right side of the circuit board, the second adjusting plate is located on the front side and the rear side of the circuit board, the first adjusting plate and the second adjusting plate slide in the first sliding groove and the second sliding groove respectively, the position of the circuit board on the fixing seat can be well corrected, the circuit board is adjusted to a preset position corresponding to the printing component, and therefore the printing component can accurately print the circuit board.
Preferably, a rotating motor is fixed at the intersection of the two rectangular plates, a rotating rod is fixed on the rotating motor, two ends of the rotating rod are respectively and rotationally connected with a first connecting rod, the first connecting rods are respectively arranged on the first adjusting plates and rotationally connected with the second adjusting plates, two ends of the rotating rod are respectively and rotationally connected with a second connecting rod, the second connecting rods are respectively arranged on the second adjusting plates and rotationally connected with the second adjusting plates, and the rotating motor can control the rotating rod to rotate so as to drive the first connecting rods and the second connecting rods to rotate, so that the purpose of controlling the first adjusting plates and the second adjusting plates to move is achieved; when the rotating rod rotates positively, the first adjusting plates are mutually close under the pulling of the first connecting rod, the positions of the circuit boards in the left-right direction are adjusted, and the second adjusting plates are mutually far away under the pushing of the second connecting rod; when the rotating rod rotates reversely, the two adjusting plates II are close to each other under the pulling of the connecting rod II, the positions of the circuit boards in the front-rear direction are adjusted, and at the moment, the two adjusting plates I are far away from each other under the pushing of the connecting rod I.
Preferably, the side of the turntable is provided with a lifting table II matched with the printing assembly, the position printing assembly comprises a lifting block II arranged on the lifting table II, the bottom of the lifting block II is fixedly provided with a printing screen, a silk screen and an ink supply machine are fixed on the printing screen, the silk screen is positioned right above the edge of the upper end face of the turntable, the ink supply machine is arranged on the side face of the silk screen, the lifting block II is slidingly connected with a sliding block, the sliding block is positioned above the silk screen, the bottom of the sliding block is rotationally connected with a rotating shaft matched with the silk screen, the outer side face of the rotating shaft is respectively fixedly provided with an inking brush strip and an ink scraping strip, the inking brush strip is arranged on one side of the rotating shaft, which is close to the ink supply machine, and forms an acute angle with the silk screen, the ink scraping strip is arranged on one side of the rotating shaft, which is far away from the ink supply machine, and forms an obtuse angle with the silk screen, and the lifting table II is used for driving the printing assembly to lift, so that the printing assembly prints on the circuit board and automatically resets after finishing; the ink-applying brush strip can apply the ink at the ink supply machine to the silk screen under the drive of the sliding block, and a certain pressure can be formed on the silk screen by the ink-applying brush strip through the forward rotation of the rotating shaft, so that the ink-applying effect is further improved; the ink scraping strip can imprint the ink on the silk screen onto the printing surface of the circuit board under the drive of the sliding block, and a certain pressure can be formed on the silk screen by the ink scraping strip through the inversion of the rotating shaft, so that the imprinting effect is further improved.
Preferably, the side surface of the turntable is provided with a lifting table III matched with the drying component, the drying component comprises a lifting block III arranged on the lifting table III, a shell is fixed on the lifting block III, a cavity is arranged in the shell, a steam outlet box is fixed on the top surface of the cavity, a plurality of steam outlets are arranged on the side surface of the steam outlet box, a steam outlet is arranged on the bottom surface of the cavity and is positioned right above the edge of the upper end surface of the turntable, the steam outlet is in an inverted truncated cone shape, the upper end surface of the shell is provided with a sealing water inlet, the sealing water inlet is communicated with the inside of the steam outlet box, and the lifting table is used for driving the drying component to lift so that the drying component automatically resets after smoking and finishing a circuit board; the steam outlet box can rapidly heat water in the box in an electromagnetic induction heating mode to generate hot steam, and the hot steam fumigates and cures the printing ink on the circuit board through the steam outlet to rapidly solidify the printing ink; the steam outlet is arranged in an inverted circular truncated cone shape, so that the hot steam can be more fully utilized by utilizing the inclined plane design at the steam outlet, the leakage is reduced, and the utilization rate of the hot steam is improved; the additionally arranged sealing water adding port can supply water to the steam outlet box.
The beneficial effects of the invention are as follows: through a multi-station full-automatic assembly line technology, automatic loading and unloading of the circuit board are realized, and compared with manual loading and unloading, the printing efficiency is greatly improved; the position precision of the circuit board during printing is ensured, the circuit board printing failure caused by the dislocation phenomenon of the circuit board and the printing assembly is avoided, and the printing quality is greatly improved; the solidification of the ink is quickened, the ink is quickly fixed on the circuit board, and the printing quality is improved; compared with the traditional hot air drying, the air force during smoking is extremely small, and the printing ink cannot flow around the circuit board due to the blowing of the air force in the drying process, so that the printing quality is further ensured.
Drawings
FIG. 1 is a top view of the present invention;
fig. 2 is an enlarged view of D in fig. 1;
FIG. 3 is an enlarged view at A in FIG. 1;
FIG. 4 is a bottom view of a portion of the lifting block of FIG. 3;
fig. 5 is an enlarged view at B in fig. 1;
FIG. 6 is a front view of the two parts of the lift table of FIG. 5;
FIG. 7 is an enlarged view at C in FIG. 1;
fig. 8 is a front view of the three parts of the lift table of fig. 7.
In the figure: 1. the device comprises a turntable, a gas supply box, a turnover assembly, a transition plate II, a blanking belt, a transition plate I, a feeding belt, a fixing seat, a sucker, a suction cup, a cylinder, a vertical baffle, a buffer layer, a lifting platform I, a lifting block I, a fixing frame, a rectangular plate, a chute I, a connecting rod I, a regulating plate II, a connecting rod II, a regulating plate 21 and a rotary table I, a lifting block I, a fixing frame 16, a rectangular plate, a chute I, a connecting rod I, a regulating plate II, a connecting rod II, 22, second chute, 23, rotary rod, 24, rotary motor, 25, printing screen, 26, second lifting block, 27, second lifting table, 28, sliding block, 29, screen, 30, ink supply, 31, inking brush bar, 32, ink scraping bar, 33, rotary shaft, 34, casing, 35, third lifting table, 36, third lifting block, 37, cavity, 38, steam outlet, 39, steam outlet box, 40, steam outlet, 41, sealing water inlet.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
In the embodiment shown in fig. 1, a multi-station circuit board printing method includes the following steps:
firstly, placing a circuit board to be printed on a feeding conveyor belt, and conveying the circuit board to be printed to a feeding station of a printer through the feeding conveyor belt;
Step two, after the feeding station is in place, the printing machine rotates, the circuit board rotates to a position adjusting station, a position adjusting component at the position adjusting station works, and the circuit board on the sucker is adjusted in front, back, left and right positions;
Step three, the fixing device on the printing machine works after the adjustment is finished, the position of the circuit board is fixed, the printing machine continues to rotate after the fixing is finished, and the circuit board rotates to a printing station;
Step four, after the circuit board is in place at the printing station, the printing assembly at the printing station works, the printing operation is started to be carried out on the printing surface of the circuit board, the printing assembly is reset after the printing operation is finished, the printer continues to rotate, and the circuit board is rotated to the drying station;
Step five, after the circuit board is in place at the drying station, the drying component at the drying station starts to work, the heating device on the drying component generates hot steam, the printing ink on the printing surface of the circuit board is smoked, the drying component is reset after the printing ink is dried, the printing machine continues to rotate, and the circuit board rotates to the blanking station;
Step six, after the circuit board is in place at the blanking station, the fixing device loosens the circuit board, and at the moment, the blanking assembly at the blanking station works to push the circuit board to the blanking conveyor belt for blanking, so that printing is completed.
And step five, a circuit board overturning assembly is additionally arranged between the drying station and the blanking station in the step six, the circuit board needing to be subjected to double-sided printing is overturned, and the overturned circuit board is turned to the position adjusting station to continue to start the printing operation on the other side.
And step four, the printing mode of the printing component is screen printing, and the positive pressure of the screen to the printed surface of the circuit board is 9-13N during printing.
As shown in fig. 1 and 2, the invention further provides a multi-station circuit board printer, which comprises a turntable 1, wherein a plurality of fixing seats 8 and limiting assemblies matched with the fixing seats 8 are fixed at the edge of the upper end face of the turntable 1, the limiting assemblies are arranged on the inner sides of the fixing seats 8, a feeding belt 7, a position adjusting assembly, a printing assembly, a drying assembly, a turnover assembly 3 and a blanking belt 5 are sequentially and annularly distributed on the side face of the turntable 1, and the position adjusting assembly, the printing assembly, the drying assembly and the turnover assembly 3 are all arranged above the edge of the turntable 1 and are in sliding connection with the turntable 1.
As shown in fig. 1 and 2, the height of the feeding belt 7 is higher than that of the turntable 1, a first transition disc 6 is fixed on the feeding belt 7, one end of the first transition disc 6 is arranged right below the outlet of the feeding belt 7, the other end of the first transition disc 6 is positioned on the side surface of the edge of the upper end surface of the turntable 1 and is arranged at the same height with the fixed seat 8, the height of the blanking belt 5 is lower than that of the turntable 1, a second transition disc 4 is fixed on the blanking belt 5, one end of the first transition disc 6 is arranged right above the inlet of the blanking belt 5, and the other end of the second transition disc 4 is positioned on the side surface of the edge of the upper end surface of the turntable 1 and is arranged at the same height with the fixed seat 8.
As shown in fig. 1 and 2, the air supply box 2 is fixed at the middle position of the turntable 1, the limiting component comprises an air cylinder 10 fixed on the turntable 1, the air cylinder 10 is connected with the air supply box 2, a vertical baffle 11 is fixed on the air cylinder 10, the vertical baffle 11 is arranged on the side surface of the fixed seat 8, a buffer layer 12 is arranged on the side surface of the vertical baffle 11, which is opposite to the fixed seat 8, a plurality of suckers 9 are arranged on the upper end surface of the fixed seat 8, and the suckers 9 are connected with the air supply box 2.
As shown in fig. 1, fig. 3 and fig. 4, a lifting table 1 matched with a position adjusting assembly is arranged on the side surface of a turntable 1, the position adjusting assembly comprises a lifting block 14 arranged on the lifting table 13, a fixing frame 15 is fixed on the lower end surface of the lifting block 14, the fixing frame 15 is positioned right above the edge of the upper end surface of the turntable 1, the fixing frame 15 is formed by vertically fixing two rectangular plates 16, two sides of the lower end surface of one rectangular plate 16 are respectively provided with a first sliding groove 17, two first sliding grooves 19 are slidably connected with one second sliding groove 19, two first sliding grooves 19 are arranged in parallel, two sides of the lower end surface of the other rectangular plate 16 are respectively provided with a second sliding groove 22, two second sliding grooves 22 are slidably connected with a second sliding groove 20, the two first sliding grooves 19 and the second sliding grooves 20 are arranged in parallel, and the two second sliding grooves 20 are mutually perpendicular.
As shown in fig. 4, a rotating motor 24 is fixed at the intersection of two rectangular plates 16, a rotating rod 23 is fixed on the rotating motor 24, two ends of the rotating rod 23 are respectively and rotatably connected with a first connecting rod 18, two first connecting rods 18 are respectively mounted on two first adjusting plates 19 and rotatably connected with the first adjusting plates 19, two ends of the rotating rod 23 are respectively and rotatably connected with a second connecting rod 21, and two second connecting rods 21 are respectively mounted on two second adjusting plates 20 and rotatably connected with the second adjusting plates 20.
As shown in fig. 1,5 and 6, a lifting table two 27 matched with a printing component is arranged on the side face of the turntable 1, the position printing component comprises a lifting block two 26 arranged on the lifting table two 27, a printing screen 25 is fixed at the bottom of the lifting block two 26, a screen 29 and an ink supplier 30 are fixed on the printing screen 25, the screen 29 is positioned right above the edge of the upper end face of the turntable 1, the ink supplier 30 is positioned on the side face of the screen 29, a sliding block 28 is connected on the lifting block two 26 in a sliding manner, the sliding block 28 is positioned above the screen 29, a rotating shaft 33 matched with the screen 29 is connected at the bottom of the sliding block 28 in a rotating manner, an inking brush bar 31 and an ink scraping bar 32 are respectively fixed on the outer side face of the rotating shaft 33, the inking brush bar 31 is positioned on the side, close to the ink supplier 30, and forms an acute angle with the screen 29, and the ink scraping bar 32 is positioned on the side, far from the rotating shaft 33, and forms an obtuse angle with the screen 29.
As shown in fig. 1, 7 and 8, a lifting table three 35 matched with a drying component is arranged on the side face of the turntable 1, the drying component comprises a lifting block three 36 arranged on the lifting table three 35, a shell 34 is fixed on the lifting block three 36, a cavity 37 is formed in the shell 34, a steam outlet box 39 is fixed on the top face of the cavity 37, a plurality of steam outlet holes 40 are formed in the side face of the steam outlet box 39, a steam outlet 38 is formed in the bottom face of the cavity 37, the steam outlet 38 is located right above the edge of the upper end face of the turntable 1, the steam outlet 38 is in an inverted truncated cone shape, a sealing water inlet 41 is arranged on the upper end face of the shell, and the sealing water inlet 41 is communicated with the interior of the steam outlet box 39.
The working flow is as follows:
1. the feeding belt 7 conveys the circuit board to be printed onto a fixing seat 8 on the side surface of the feeding belt 7.
2. The turntable 1 rotates to send the circuit board to the lower part of the position adjusting assembly, and after the circuit board is in place, the lifting platform I13 works to drive the position adjusting assembly to descend, so that the two adjusting plates I19 are respectively positioned on the left side and the right side of the circuit board, and the two adjusting plates II 20 are respectively positioned on the front side and the rear side of the circuit board; then the rotating motor 24 rotates positively to drive the rotating rod 23 to rotate positively, the first adjusting plates 19 are close to each other under the pulling of the first connecting rod 18, and the left and right positions of the circuit board are adjusted (at the moment, the second adjusting plates 20 are far away from each other under the pushing of the second connecting rod 21); then the rotating motor 24 is reversed again to drive the rotating rod 23 to rotate reversely, the two adjusting plates II 20 are close to each other under the pulling of the connecting rod II 21, and the front and rear positions of the circuit board are adjusted (at the moment, the two adjusting plates I19 are far away from each other under the pushing of the connecting rod I18);
3. After the position of the circuit board is adjusted, the sucking disc 9 works to generate suction force, the circuit board is firmly adsorbed on the fixing seat 8 to be fixed, and then the position adjusting assembly is reset under the action of the first lifting table 13.
4. The rotary table 1 continues to rotate, the circuit board is sent to the lower part of the printing assembly, after being in place, the lifting table II 27 works to drive the printing assembly to descend, the silk screen 29 on the printing screen 25 is tightly pressed on the printing surface of the circuit board, then the sliding block 28 moves to drive the inking brush bar 31 to move, the ink at the ink supply machine 30 is completely and uniformly smeared on the silk screen 29 (the rotary shaft 33 is in a forward rotating state during inking, and the inking brush bar 31 is pressed on the silk screen 29 and forms a certain pressure on the silk screen 29); after the coating is finished, the sliding block 28 moves back to drive the ink scraping bar 32 to scrape ink, the ink and the silk screen 29 are extruded in the movement, and the ink is leaked and printed on the printing surface of the circuit board through the mesh (the rotating shaft 33 is in a reverse rotation state when scraping ink, and the ink scraping bar 32 is pressed on the silk screen 29 and forms a certain pressure on the silk screen 29). After printing, the printing assembly is reset under the action of the lifting platform II 27.
5. The turntable 1 continues to rotate, the circuit board is sent to the lower part of the drying component, after being in place, the lifting platform III 35 works to drive the drying component to descend, the steam outlet 38 just faces the printing surface of the circuit board, the steam outlet box 39 works, and generated hot steam fumigates and toasts the ink on the circuit board through the steam outlet 38 to enable the ink to be solidified rapidly. After smoking, the drying assembly is reset by the third lift 36.
6. The turntable 1 continues to rotate, and the circuit board is sent to the lower part of the overturning assembly 3. When the circuit board needs to be subjected to double-sided printing, the circuit board is turned over by the turning assembly, and the turned circuit board continues to start the printing operation on the other side on the turntable 1; when the circuit board does not need to be printed on both sides, the turntable 1 continues to rotate, the circuit board is conveyed to the side face of the blanking belt 5, at the moment, the sucker 9 on the fixing seat 8 stops working, the cylinder 10 works to drive the vertical baffle 11 to move, and the circuit board on the fixing seat 8 is pushed onto the blanking belt 5, so that blanking is completed.
Claims (7)
1. The utility model provides a multistation circuit board printing machine, its characterized in that includes carousel (1), the edge of carousel (1) up end is fixed with a plurality of fixing base (8) and with fixing base (8) assorted spacing subassembly, spacing subassembly is arranged in the inboard of fixing base (8), the side of carousel (1) is annular in proper order distributed has material loading area (7), position control subassembly, printing subassembly, drying module, upset subassembly (3) and unloading area (5), position control subassembly, printing subassembly, drying module and upset subassembly (3) are all installed in the top of carousel (1) edge and with carousel (1) sliding connection, carousel (1) side is provided with elevating platform one (13) with position control subassembly assorted, position control subassembly is including installing elevating platform one (14) on elevating platform one (13), be fixed with mount (15) on the lower terminal surface of elevating platform one (14), mount (15) are located directly over the upper end edge of carousel (1), mount (15) are by two rectangle pieces (16) fixed plate one (16) are equipped with one and are connected with two parallel slide (17) one in the board one side, wherein, the two sides of the lower end surface of the other rectangular plate (16) are respectively provided with a second sliding chute (22), the two sliding chute (22) are internally and slidably connected with a second regulating plate (20), the two regulating plates (20) are arranged in parallel, the first regulating plate (19) and the second regulating plate (20) are mutually perpendicular, a rotating motor (24) is fixed at the intersection of the two rectangular plates (16), a rotating rod (23) is fixed on the rotating motor (24), the two ends of the rotating rod (23) are respectively and rotatably connected with a first connecting rod (18), the two first connecting rods (18) are respectively and rotatably connected with the first regulating plate (19), the two ends of the rotating rod (23) are respectively and rotatably connected with a second connecting rod (21), the second regulating plate (20) is respectively and rotatably connected with the second regulating plate (20), the side surface of the rotating disc (1) is provided with a lifting table (35) matched with a drying assembly, the drying assembly comprises a lifting block (36) arranged on the lifting table (35), the lifting block (36) is arranged on the lifting table (35), the side surface of the drying assembly is provided with a plurality of steam outlet boxes (37) and the steam outlet boxes (37) are arranged on the side surfaces of the steam outlet boxes (34), the steam box is characterized in that a steam outlet (38) is formed in the bottom surface of the cavity (37), the steam outlet (38) is located right above the edge of the upper end surface of the rotary table (1), the steam outlet (38) is in an inverted circular truncated cone shape, a sealing water filling port (41) is formed in the upper end surface of the shell, and the sealing water filling port (41) is communicated with the inside of the steam box (39).
2. The multi-station circuit board printer according to claim 1, wherein the feeding belt (7) is higher than the rotary table (1), a first transition disc (6) is fixed on the feeding belt (7), one end of the first transition disc (6) is arranged right below the outlet of the feeding belt (7), the other end of the first transition disc (6) is arranged on the side face of the edge of the upper end face of the rotary table (1) and is arranged at the same height with the fixing seat (8), the height of the blanking belt (5) is lower than that of the rotary table (1), a second transition disc (4) is fixed on the blanking belt (5), one end of the first transition disc (6) is arranged right above the inlet of the blanking belt (5), and the other end of the second transition disc (4) is arranged on the side face of the edge of the upper end face of the rotary table (1) and is arranged at the same height with the fixing seat (8).
3. The multi-station circuit board printer according to claim 1, wherein the air supply box (2) is fixed at the middle position of the rotary table (1), the limiting component comprises an air cylinder (10) fixed on the rotary table (1), the air cylinder (10) is connected with the air supply box (2), a vertical baffle (11) is fixed on the air cylinder (10), the vertical baffle (11) is arranged on the side surface of the fixed seat (8), a buffer layer (12) is arranged on the side surface of the vertical baffle (11) opposite to the fixed seat (8), a plurality of suckers (9) are arranged on the upper end surface of the fixed seat (8), and the suckers (9) are connected with the air supply box (2).
4. The multi-station circuit board printer according to claim 1, wherein the side of the rotary table (1) is provided with a lifting table two (27) matched with a printing component, the position printing component comprises a lifting block two (26) installed on the lifting table two (27), a printing screen (25) is fixed at the bottom of the lifting block two (26), a screen (29) and an ink supply machine (30) are fixed on the printing screen (25), the screen (29) is located right above the edge of the upper end face of the rotary table (1), the ink supply machine (30) is arranged on the side face of the screen (29), a sliding block (28) is connected to the lifting block two (26) in a sliding mode, the sliding block (28) is located above the screen (29), a rotating shaft (33) matched with the screen (29) is connected to the bottom of the sliding block (28) in a rotating mode, an ink applying brush bar (31) and an ink scraping bar (32) are fixed on the outer side face of the rotating shaft (33) respectively, the ink applying brush bar (31) is arranged on one side, close to the ink supply machine (33) and far away from the ink supply machine (30), and the rotating shaft (30) is arranged on one side, far away from the ink supply machine (30).
5. The printing method of a multi-station circuit board printer according to claim 1, comprising the steps of:
firstly, placing a circuit board to be printed on a feeding conveyor belt, and conveying the circuit board to be printed to a feeding station of a printer through the feeding conveyor belt;
Step two, after the feeding station is in place, the printing machine rotates, the circuit board rotates to a position adjusting station, a position adjusting component at the position adjusting station works, and the circuit board on the sucker is adjusted in front, back, left and right positions;
Step three, the fixing device on the printing machine works after the adjustment is finished, the position of the circuit board is fixed, the printing machine continues to rotate after the fixing is finished, and the circuit board rotates to a printing station;
Step four, after the circuit board is in place at the printing station, the printing assembly at the printing station works, the printing operation is started to be carried out on the printing surface of the circuit board, the printing assembly is reset after the printing operation is finished, the printer continues to rotate, and the circuit board is rotated to the drying station;
Step five, after the circuit board is in place at the drying station, the drying component at the drying station starts to work, the heating device on the drying component generates hot steam, the printing ink on the printing surface of the circuit board is smoked, the drying component is reset after the printing ink is dried, the printing machine continues to rotate, and the circuit board rotates to the blanking station;
Step six, after the circuit board is in place at the blanking station, the fixing device loosens the circuit board, and at the moment, the blanking assembly at the blanking station works to push the circuit board to the blanking conveyor belt for blanking, so that printing is completed.
6. The printing method of the multi-station circuit board printer according to claim 5, wherein a circuit board overturning assembly is additionally arranged between the drying station in the fifth step and the blanking station in the sixth step, the circuit board needing to be subjected to double-sided printing is overturned, and the overturned circuit board is turned to the position adjusting station to continue to start the printing operation on the other side.
7. The printing method of the multi-station circuit board printer according to claim 5, wherein the printing mode of the printing assembly in the fourth step is screen printing, and the positive pressure of the screen to the printed surface of the circuit board during printing is 9-13N.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010830958.9A CN112172317B (en) | 2020-08-18 | 2020-08-18 | Multi-station circuit board printer and printing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010830958.9A CN112172317B (en) | 2020-08-18 | 2020-08-18 | Multi-station circuit board printer and printing method |
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| CN112172317A CN112172317A (en) | 2021-01-05 |
| CN112172317B true CN112172317B (en) | 2024-05-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115195275B (en) * | 2022-05-18 | 2023-09-01 | 上海瑞源印刷设备有限公司 | Six-color metal plate printer convenient for color difference adjustment |
| CN116215059B (en) * | 2023-03-29 | 2023-08-11 | 河北鹏润印刷有限公司 | Double-sided double-color printing machine for publication printing and printing method thereof |
| CN117885441B (en) * | 2024-03-18 | 2024-06-04 | 泰州海达塑胶包装有限公司 | Printing equipment suitable for multi-angle printing |
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| CN108544850A (en) * | 2018-06-08 | 2018-09-18 | 长葛市中瑞纸业有限公司 | A kind of method and printing machine of printing paper production |
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| CN108544850A (en) * | 2018-06-08 | 2018-09-18 | 长葛市中瑞纸业有限公司 | A kind of method and printing machine of printing paper production |
| CN108790391A (en) * | 2018-06-25 | 2018-11-13 | 东莞职业技术学院 | A kind of full-automatic printing equipment based on miniature cover board |
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| CN112172317A (en) | 2021-01-05 |
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