CN216100963U - Screen printing device for printing copper paste on printed circuit board - Google Patents
Screen printing device for printing copper paste on printed circuit board Download PDFInfo
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- CN216100963U CN216100963U CN202122625239.6U CN202122625239U CN216100963U CN 216100963 U CN216100963 U CN 216100963U CN 202122625239 U CN202122625239 U CN 202122625239U CN 216100963 U CN216100963 U CN 216100963U
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- printing
- copper paste
- plate
- fixedly arranged
- circuit board
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- 238000007639 printing Methods 0.000 title claims abstract description 46
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 45
- 239000010949 copper Substances 0.000 title claims abstract description 45
- 238000007650 screen-printing Methods 0.000 title claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model discloses a screen printing device for printing copper paste on a printed circuit board, which comprises a workbench (1), a left support (2) and a right support (3) which are fixedly arranged on the table top of the workbench (1), wherein a printing seat (4) is fixedly arranged between the left support (2) and the right support (3), a through groove (5) is formed in the printing seat (4), the through groove (5) is matched with a substrate, a silk screen (6) is welded on the top surface of the printing seat (4), an enclosure frame (7) positioned outside the silk screen (6) is also welded on the top surface of the printing seat (4), a rectangular frame (8) is fixedly arranged on the bottom surface of the printing seat (4), a plurality of circles of heating coils (9) are wound outside the rectangular frame (8), and a wiring head of the heating coils (9) is connected with a power supply. The utility model has the beneficial effects that: compact structure, no pollution to the worktable in the printing process, capability of adjusting the thickness of the copper paste layer and improving the manufacturing efficiency of the conductive layer.
Description
Technical Field
The utility model relates to the technical field of printing copper paste on a substrate, in particular to a screen printing device for printing copper paste on a printed circuit board.
Background
With the continuous development of communication technology, different types of communication equipment are produced, and printed circuit boards for controlling the operation of the communication equipment are mounted in various communication equipment, so that the production and processing of the printed circuit boards are more and more important.
The process requires printing a layer of copper paste on the top surface of the solder resist layer of the substrate, and after the copper paste is dried, the copper paste becomes a conductive layer, which is an important component of the circuit board. The existing method for printing copper paste on a substrate is to place the substrate flat on a workbench, then place a silk screen over the substrate by a worker to ensure a certain distance between the silk screen and the substrate, then pour a certain amount of copper paste on the top surface of the silk screen by another worker, then the worker uses a scraper to scrape the accumulated copper paste, in the scraping process, the copper paste penetrates through the meshes of the silk screen and enters the area formed by the silk screen and the substrate to realize the printing of the copper paste, after printing, the worker conveys the whole substrate to a subsequent oven to bake the whole substrate so as to cure the copper paste, and after curing, a conductive layer can be obtained. However, in practical operation, the following technical defects still exist in the way of printing copper paste: 1. when the workman utilizes the scraper blade at the in-process of strickleing off the copper thick liquid, unnecessary copper thick liquid can be driven on the workstation, leads to the workstation to seem very dirty in disorder, is unfavorable for the later stage to clean. 2. The interval between the solder mask of silk screen and base plate is unchangeable all the time, leads to the unable change of thickness on copper thick liquid layer, and then leads to the unable change of thickness on conducting layer, has the poor technical defect of commonality. 3. After the copper paste is printed and formed, the substrate needs to be conveyed into an oven to be dried, the transfer time is increased midway, and the manufacturing efficiency of the conducting layer is further reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide the screen printing device for printing the copper paste on the printed circuit board, which has the advantages of compact structure, no pollution to a worktable in the printing process, capability of adjusting the thickness of the copper paste layer, improvement of the manufacturing efficiency of the conducting layer and simple operation.
The purpose of the utility model is realized by the following technical scheme: a screen printing device for printing copper paste on a printed circuit board comprises a workbench, a left support and a right support which are fixedly arranged on the surface of the workbench, a printing seat is fixedly arranged between the left support and the right support, a through groove is formed in the printing seat and matched with a substrate, a silk screen is welded on the top surface of the printing seat, an enclosing frame positioned outside the silk screen is welded on the top surface of the printing seat, a rectangular frame is fixedly arranged on the bottom surface of the printing seat and communicated with the through groove, a multi-ring heating coil is wound outside the rectangular frame, a connector lug of the heating coil is connected with a power supply, an L plate is further arranged on the top surface of the right support, a feeding cylinder is fixedly arranged on the L plate and arranged above the enclosing frame, a scraper blade is fixedly arranged on the action end of a piston rod of the feeding cylinder, the bottom surface of the scraper blade is contacted with the top surface of the silk screen, a vertical cylinder is fixedly arranged on the bottom surface of the workbench, the vertical cylinder piston rod runs through the workstation setting, has set firmly the locating plate on the extension end of piston rod, and the outline of locating plate is unanimous with the outline of base plate, sets firmly two reference columns on the top surface of locating plate.
The height of the positioning column is smaller than or equal to the thickness of the substrate.
The horizontal plate of the L plate is fixed on the right bracket, and the cylinder barrel of the feeding cylinder is fixedly arranged on the vertical plate of the L plate.
And a plurality of supporting legs supported on the ground are fixedly arranged on the bottom surface of the workbench.
The bottom surface of the workbench is fixedly provided with a plurality of guide seats, guide posts are slidably arranged in the guide seats, and the top ends of the guide posts penetrate through the workbench and are fixedly arranged on the bottom surface of the positioning plate.
The device also comprises a controller which is electrically connected with the electromagnetic valve of the feeding cylinder and the electromagnetic valve of the vertical cylinder.
The utility model has the following advantages: compact structure, no pollution of the worktable in the printing process, capability of adjusting the thickness of the copper paste layer, improvement of the manufacturing efficiency of the conductive layer and simple operation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection between the positioning plate and the positioning post;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a top view of the connection of the enclosure frame, the printing block and the screen;
FIG. 5 is a schematic view of the substrate after the pilot holes have been drilled;
FIG. 6 is a schematic view of a tooling positioning substrate;
FIG. 7 is a schematic view of transferring a substrate;
FIG. 8 is a schematic illustration of copper paste deposition on a screen;
FIG. 9 is a schematic illustration of printing copper paste;
in the figure, 1-workbench, 2-left support, 3-right support, 4-printing seat, 5-through groove, 6-silk screen, 7-surrounding frame, 8-rectangular frame, 9-heating coil, 10-L plate, 11-feeding cylinder, 12-scraping plate, 13-vertical cylinder, 14-positioning plate, 15-positioning column, 16-guiding seat, 17-guiding column, 18-substrate and 19-positioning hole.
Detailed Description
The utility model will be further described with reference to the accompanying drawings, without limiting the scope of the utility model to the following:
as shown in fig. 1 to 4, a screen printing device for printing copper paste on a printed circuit board comprises a workbench 1, a left support 2 and a right support 3 which are fixedly arranged on a table top of the workbench 1, a printing base 4 is fixedly arranged between the left support 2 and the right support 3, a through groove 5 is arranged in the printing base 4, the through groove 5 is matched with a substrate, a silk screen 6 is welded on the top surface of the printing base 4, a surrounding frame 7 positioned outside the silk screen 6 is also welded on the top surface of the printing base 4, a rectangular frame 8 is fixedly arranged on the bottom surface of the printing base 4, the rectangular frame 8 is communicated with the through groove 5, a plurality of circles of heating coils 9 are wound outside the rectangular frame 8, a connector of the heating coils 9 is connected with a power supply, an L plate 10 is further arranged on the top surface of the right support 3, a feeding cylinder 11 is fixedly arranged on the L plate 10, the feeding cylinder 11 is arranged above the surrounding frame 7, a scraper 12 is fixedly arranged on an acting end of a piston rod of the feeding cylinder 11, the bottom surface of the scraper 12 is in contact with the top surface of the silk screen 6, a vertical cylinder 13 is fixedly mounted on the bottom surface of the workbench 1, a piston rod of the vertical cylinder 13 penetrates through the workbench 1, a positioning plate 14 is fixedly arranged on the extending end of the piston rod, the outline of the positioning plate 14 is consistent with that of the substrate, two positioning columns 15 are fixedly arranged on the top surface of the positioning plate 14, and the height of each positioning column 15 is smaller than or equal to the thickness of the substrate.
The horizontal plate of the L-shaped plate 10 is fixed on the right bracket 3, and the cylinder barrel of the feeding cylinder 11 is fixedly arranged on the vertical plate of the L-shaped plate 10. The bottom surface of the workbench 1 is fixedly provided with a plurality of supporting legs supported on the ground, the bottom surface of the workbench 1 is fixedly provided with a plurality of guide bases 16, guide posts 17 are slidably mounted in the guide bases 16, and the top ends of the guide posts 17 penetrate through the workbench 1 and are fixedly arranged on the bottom surface of the positioning plate 14.
The device also comprises a controller, the controller is electrically connected with the electromagnetic valve of the feeding cylinder 11 and the electromagnetic valve of the vertical cylinder 13, and a worker can control the extension or retraction of the piston rods of the feeding cylinder 11 and the vertical cylinder 13 through the controller, so that the device is convenient for the operation of the worker and has the characteristic of high automation degree.
The working process of the utility model is as follows:
s1, the worker drills two positioning holes 19 on the substrate 18 in advance to ensure that the two positioning holes 19 are respectively consistent with the two positioning posts 15 and that the diameter of the positioning holes 19 is equal to the diameter of the positioning posts 15, as shown in fig. 5; a worker connects a connector lug of the heating coil 9 to a power supply, the heating coil 9 emits heat after being electrified, and the heat raises the temperature of the rectangular frame 8, so that the temperature of the hollow cavity of the rectangular frame 8 is raised;
s2, the worker sleeves the two positioning holes 19 of the substrate 18 to be printed on the two positioning posts 15, respectively, and supports the substrate 18 on the top surface of the positioning plate 14, thereby positioning the substrate 18, and at this time, the four edges of the substrate 18 are flush with the four edges of the positioning plate 14, respectively, as shown in fig. 6;
s3, a worker controls a piston rod of a vertical cylinder 13 to extend upwards, the piston rod drives a positioning plate 14 to move upwards, the positioning plate 14 and a substrate 18 on the positioning plate pass through a hollow cavity of a rectangular frame 8 and then enter a through groove 5, the positioning plate 14 is matched with the through groove 5 as shown in figure 7, after the distance between a silk screen 6 and the positioning plate 14 is adjusted to a proper position, the worker accumulates a certain amount of copper slurry on the top surface of the silk screen 6 as shown in figure 8, then the worker controls a piston rod of a feeding cylinder 11 to extend leftwards, the piston rod drives a scraper 12 to move leftwards, the scraper 12 drives the copper slurry to be flat, the copper slurry passes through meshes of the silk screen 6 under the driving of the scraper 12 and then falls into an area defined by the substrate 18, the wall of the through groove 5 and the silk screen 6, and the copper slurry is printed on the substrate as shown in figure 9;
s4, after the piston rod of the feeding cylinder 11 is completely extended out, the piston rod is controlled to retract, then the piston rod of the vertical cylinder 13 is controlled to retract downwards, the piston rod drives the positioning plate 14 to move downwards, the positioning plate 14 drives the base plate 18 printed with copper paste to move downwards, when the base plate 18 passes through the rectangular frame 8, heat in a hollow cavity of the rectangular frame 8 bakes the copper paste, and thus the copper paste layer is baked into a conductive layer, and a semi-finished circuit board can be obtained; therefore, the device realizes that the printed copper paste layer is directly conveyed to a baking station without middle long-distance turnover, thereby greatly improving the manufacturing efficiency of the conductive layer.
And S5, when the piston rod of the vertical cylinder 13 is completely retracted, the worker detaches the semi-finished circuit board from the positioning column and then conveys the semi-finished circuit board to the rear-section processing equipment.
In step S3, the distance between the wire mesh 6 and the positioning plate 14 can be adjusted by changing the extension length of the piston rod of the vertical cylinder 13, so as to change the thickness of the prepared copper paste layer. In addition, in the process of scraping the copper paste by the scraper 12, the redundant copper paste is limited in the enclosing frame 7, so that the redundant copper paste is prevented from falling on the table top of the workbench 1, and the workbench is prevented from being polluted.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A screen printing device for printing copper paste on a printed circuit board, characterized in that: the printing machine comprises a workbench (1), a left support (2) and a right support (3) which are fixedly arranged on a table board of the workbench (1), a printing seat (4) is fixedly arranged between the left support (2) and the right support (3), a through groove (5) is formed in the printing seat (4), the through groove (5) is matched with a substrate, a silk screen (6) is welded on the top surface of the printing seat (4), an enclosure frame (7) positioned outside the silk screen (6) is further welded on the top surface of the printing seat (4), a rectangular frame (8) is fixedly arranged on the bottom surface of the printing seat (4), the rectangular frame (8) is communicated with the through groove (5), a plurality of circles of heating coils (9) are wound outside the rectangular frame (8), a wire connector of the heating coils (9) is connected with a power supply, an L plate (10) is further arranged on the top surface of the right support (3), and a feeding cylinder (11) is fixedly arranged on the L plate (10), feed cylinder (11) and set up in the top of enclosing frame (7), feed cylinder (11) piston rod's the effect and serve and set firmly scraper blade (12), the bottom surface of scraper blade (12) and the contact of the top surface of silk screen (6), fixed mounting has vertical cylinder (13) on the bottom surface of workstation (1), and vertical cylinder (13) piston rod runs through workstation (1) and sets up, and the extension of piston rod is served and is set firmly locating plate (14), and the outline of locating plate (14) is unanimous with the outline of base plate, sets firmly two reference columns (15) on the top surface of locating plate (14).
2. A screen printing apparatus for printing copper paste on a printed circuit board according to claim 1, wherein: the height of the positioning column (15) is smaller than or equal to the thickness of the substrate.
3. A screen printing apparatus for printing copper paste on a printed circuit board according to claim 1, wherein: the horizontal plate of the L plate (10) is fixed on the right bracket (3), and the cylinder barrel of the feeding cylinder (11) is fixedly arranged on the vertical plate of the L plate (10).
4. A screen printing apparatus for printing copper paste on a printed circuit board according to claim 1, wherein: the bottom surface of the workbench (1) is fixedly provided with a plurality of support legs supported on the ground.
5. A screen printing apparatus for printing copper paste on a printed circuit board according to claim 1, wherein: a plurality of guide seats (16) are fixedly arranged on the bottom surface of the workbench (1), guide columns (17) are slidably arranged in the guide seats (16), and the top ends of the guide columns (17) penetrate through the workbench (1) and are fixedly arranged on the bottom surface of the positioning plate (14).
6. A screen printing apparatus for printing copper paste on a printed circuit board according to claim 1, wherein: the device also comprises a controller which is electrically connected with the electromagnetic valve of the feeding cylinder (11) and the electromagnetic valve of the vertical cylinder (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122625239.6U CN216100963U (en) | 2021-10-29 | 2021-10-29 | Screen printing device for printing copper paste on printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122625239.6U CN216100963U (en) | 2021-10-29 | 2021-10-29 | Screen printing device for printing copper paste on printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216100963U true CN216100963U (en) | 2022-03-22 |
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ID=80710949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122625239.6U Active CN216100963U (en) | 2021-10-29 | 2021-10-29 | Screen printing device for printing copper paste on printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216100963U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115817000A (en) * | 2023-01-10 | 2023-03-21 | 西北电子装备技术研究所(中国电子科技集团公司第二研究所) | Inner and outer platform mechanism for raw ceramic chip with frame hole wall metallization |
| CN116749637A (en) * | 2023-08-21 | 2023-09-15 | 四川英创力电子科技股份有限公司 | A fully automatic device and method for efficiently silk-printing text on circuit boards |
-
2021
- 2021-10-29 CN CN202122625239.6U patent/CN216100963U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115817000A (en) * | 2023-01-10 | 2023-03-21 | 西北电子装备技术研究所(中国电子科技集团公司第二研究所) | Inner and outer platform mechanism for raw ceramic chip with frame hole wall metallization |
| CN115817000B (en) * | 2023-01-10 | 2023-05-26 | 西北电子装备技术研究所(中国电子科技集团公司第二研究所) | Inner and outer bench mechanism for raw ceramic sheet framed hole wall metallization |
| CN116749637A (en) * | 2023-08-21 | 2023-09-15 | 四川英创力电子科技股份有限公司 | A fully automatic device and method for efficiently silk-printing text on circuit boards |
| CN116749637B (en) * | 2023-08-21 | 2023-10-13 | 四川英创力电子科技股份有限公司 | A fully automatic device and method for efficiently silk-printing text on circuit boards |
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