CN215882965U - Automatic screen printing equipment - Google Patents
Automatic screen printing equipment Download PDFInfo
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- CN215882965U CN215882965U CN202122078147.0U CN202122078147U CN215882965U CN 215882965 U CN215882965 U CN 215882965U CN 202122078147 U CN202122078147 U CN 202122078147U CN 215882965 U CN215882965 U CN 215882965U
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Abstract
The utility model discloses an automatic silk-screen printing device, which comprises a workbench provided with a conveyor belt, a connecting roller frame between the workbench and a material carrying plate for placing a circuit board, wherein the material carrying plate can be conveyed between the connecting roller frame and the conveyor belt, a bracket is arranged above the workbench, the top of the bracket is provided with an air cylinder, a piston rod of the air cylinder penetrates through the bracket, the lower end of the piston rod is connected with a silk screen frame, the bottom of the silk screen frame is provided with a silk screen bottom plate, the lower surface of the screen printing bottom plate is provided with at least two positioning columns, the material carrying plate is provided with positioning holes matched with the positioning columns, a material guide plate is arranged in the screen printing frame and above the scraper, a concave area is formed on the material guide plate and outside the area, with the discharging through hole, of the screen printing bottom plate, two guide block groups arranged at intervals are arranged on the conveying belt, and two guide sliding grooves are formed in the lower surface of the material carrying plate. The utility model ensures the uniformity of tin powder distribution and improves the processing precision and efficiency.
Description
Technical Field
The utility model relates to automatic screen printing equipment, and belongs to the technical field of electronic product processing equipment.
Background
The silk screen printing is a device which uses a silk screen as a plate base and is manufactured into a silk screen printing plate with pictures and texts by a photosensitive plate making method, the silk screen printing plate consists of five major elements, the silk screen printing plate, a scraper blade, printing ink, a printing table and a printing stock, the basic principle that part of meshes of the pictures and texts of the silk screen printing plate can penetrate the printing ink and part of meshes of non-pictures and texts can not penetrate the printing ink is utilized to print, the printing ink is poured into one end of the silk screen printing plate during printing, the scraper blade is used for applying certain pressure to ink positions on the silk screen printing plate, meanwhile, the printing ink moves towards the other end of the silk screen printing plate at a constant speed, the printing ink is extruded onto the printing stock from the meshes of the pictures and texts by the scraper blade during moving, and the silk screen printing device of electronic products such as a circuit board and the like is a device which uses tin powder to replace the printing ink, and enables the meshes to align to welding spots on the circuit board to print.
The existing screen printing device for electronic products has the problems that the position of a circuit board is easy to deviate and tin printing cannot be accurately printed when the circuit board is printed, so that the processing precision of the product is insufficient and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide automatic screen printing equipment, which can ensure the uniformity of tin powder distribution, avoid waste and erosion damage to components caused by disordered falling of the tin powder, ensure the position precision of a circuit board in the operation process and further improve the processing efficiency and precision.
In order to solve the technical problems, the utility model adopts the technical scheme that: an automatic silk-screen printing device comprises a workbench provided with a conveyor belt, a connecting roller frame between the workbench and a material carrying plate used for placing a circuit board, wherein the material carrying plate can be conveyed between the connecting roller frame and the conveyor belt;
the screen printing frame is characterized in that two opposite inner walls of the screen printing frame are respectively provided with a sliding chute above the screen printing bottom plate, a sliding block capable of reciprocating in each sliding chute is arranged in each sliding chute, the two sliding blocks are connected through a mounting rod provided with a scraper, the lower end face of the obliquely arranged scraper is in contact with the upper surface of the screen printing bottom plate, at least one sliding block is connected with a driving mechanism, a feeding hole is formed in the screen printing frame, and a plurality of uniformly distributed discharging through holes are formed in the central area of the screen printing bottom plate;
the conveying belt is provided with two guide block groups arranged at intervals, each guide block group is formed by sequentially arranging a plurality of guide blocks along the advancing direction of the material carrying plate, and the lower surface of the material carrying plate is provided with two guide sliding chutes matched with the guide block groups;
a material guide plate is arranged in the screen printing frame and above the scraper, a concave area is formed on the material guide plate and outside the area of the screen printing bottom plate with the discharging through hole, a plurality of discharging holes distributed at intervals are formed in the concave area, a discharging pipe is connected below each discharging hole, and a valve is arranged on each discharging pipe.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, a heater is installed on the top surface inside the support.
2. In the above scheme, four corners of the screen printing bottom plate are respectively provided with one positioning column.
3. In the scheme, the material loading roller frame is provided with the guide ring matched with the guide sliding groove.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. the automatic screen printing equipment disclosed by the utility model realizes automatic operation of loading, transporting and tin powder coating, can also ensure the position precision of the circuit board in the operation process, avoids deviation and improves the processing precision and efficiency; and two guide block groups arranged at intervals are arranged on the conveying belt, each guide block group is formed by sequentially arranging a plurality of guide blocks along the advancing direction of the material carrying plate, two guide sliding grooves matched with the guide block groups are arranged on the lower surface of the material carrying plate, the position precision of the material carrying plate in the whole process of material carrying and processing is ensured, the circuit board on the material carrying plate is prevented from deviating, and the processing precision is improved.
2. The automatic silk-screen printing equipment is characterized in that a material guide plate is arranged in a silk-screen frame and above a scraper, a concave area is formed on the material guide plate and outside the area of a silk-screen bottom plate with a discharging through hole, a plurality of discharging holes distributed at intervals are formed in the concave area, a discharging pipe is connected below each discharging hole, and a valve is arranged on each discharging pipe, so that the uniformity of tin powder distribution can be ensured, the waste and the erosion damage to parts caused by disordered falling of the tin powder can be avoided, and the processing efficiency and precision are further improved.
Drawings
FIG. 1 is a schematic view of the overall structure of an automated screen printing apparatus according to the present invention;
FIG. 2 is a schematic view of a partial structure of an automated screen printing apparatus according to the present invention;
FIG. 3 is a side sectional view of the automated screen printing apparatus of the present invention;
FIG. 4 is a front sectional view of the automated screen printing apparatus of the present invention;
fig. 5 is an enlarged view of the structure of fig. 4 according to the present invention at a.
In the above drawings: 1. a work table; 2. connecting the roller frame; 3. a conveyor belt; 4. a guide block group; 41. a guide block; 5. a feed inlet; 6. a material carrying plate; 7. a support; 8. a cylinder; 9. screen printing frames; 10. printing a bottom plate in a silk screen mode; 11. a material guide plate; 12. a chute; 13. a slider; 14. a squeegee; 15. a positioning column; 16. positioning holes; 17. a guide chute; 18. a heater; 19. mounting a rod; 20. a discharge pipe; 21. a valve; 22. a guide ring.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: an automatic silk-screen printing device comprises a workbench 2 provided with a conveyor belt 3, a connecting roller frame 2 positioned at the front end of the workbench 2 and a material carrying plate 6 used for placing a circuit board, wherein the material carrying plate 6 can be conveyed between the connecting roller frame 2 and the conveyor belt 3, a support 7 is arranged above the workbench 2, an air cylinder 8 is arranged at the top of the support 7, a piston rod of the air cylinder 8 penetrates through the support 7, the lower end of the piston rod is connected with a silk-screen frame 9 capable of moving up and down above the conveyor belt 3, the bottom of the silk-screen frame 9 is provided with a silk-screen bottom plate 10, the lower surface of the silk-screen bottom plate 10 is provided with at least two positioning columns 15, and the material carrying plate 6 is provided with positioning holes 16 matched with the positioning columns 15;
the screen printing frame 9 is characterized in that sliding grooves 12 are respectively arranged on two opposite inner walls of the screen printing frame 9 and above the screen printing bottom plate 10, a sliding block 13 capable of reciprocating in the sliding groove 12 is arranged in each sliding groove 12, the two sliding blocks 13 are connected through an installation rod 19 provided with a scraping plate 14, the lower end face of the obliquely arranged scraping plate 14 is in contact with the upper surface of the screen printing bottom plate 10, at least one sliding block 13 is connected with a driving mechanism, a feeding hole 5 is formed in the screen printing frame 9, and a plurality of uniformly distributed discharging through holes are formed in the central area of the screen printing bottom plate 10;
the conveyor belt 3 is provided with two guide block groups 4 arranged at intervals, each guide block group 4 is formed by sequentially arranging a plurality of guide blocks 41 along the advancing direction of the material carrying plate 6, and the lower surface of the material carrying plate 6 is provided with two guide sliding chutes 17 used for being matched with the guide block groups 4;
a material guide plate 11 is arranged in the screen printing frame 9 and above the scraper 14, a concave area is formed on the material guide plate 11 and outside the area of the screen printing bottom plate 10 with the discharging through hole, a plurality of discharging holes distributed at intervals are formed on the concave area, a discharging pipe 20 is connected below each discharging hole, and a valve 21 is arranged on the discharging pipe 20.
The four corners of the screen printing bottom plate 10 are respectively provided with one positioning column 15.
The loading roller frame is provided with a guide ring 22 which is matched with the guide chute 17.
Example 2: an automatic silk-screen printing device comprises a workbench 2 provided with a conveyor belt 3, a connecting roller frame 2 positioned at the front end of the workbench 2 and a material carrying plate 6 used for placing a circuit board, wherein the material carrying plate 6 can be conveyed between the connecting roller frame 2 and the conveyor belt 3, a support 7 is arranged above the workbench 2, an air cylinder 8 is arranged at the top of the support 7, a piston rod of the air cylinder 8 penetrates through the support 7, the lower end of the piston rod is connected with a silk-screen frame 9 capable of moving up and down above the conveyor belt 3, the bottom of the silk-screen frame 9 is provided with a silk-screen bottom plate 10, the lower surface of the silk-screen bottom plate 10 is provided with at least two positioning columns 15, and the material carrying plate 6 is provided with positioning holes 16 matched with the positioning columns 15;
the screen printing frame 9 is characterized in that sliding grooves 12 are respectively arranged on two opposite inner walls of the screen printing frame 9 and above the screen printing bottom plate 10, a sliding block 13 capable of reciprocating in the sliding groove 12 is arranged in each sliding groove 12, the two sliding blocks 13 are connected through an installation rod 19 provided with a scraping plate 14, the lower end face of the obliquely arranged scraping plate 14 is in contact with the upper surface of the screen printing bottom plate 10, at least one sliding block 13 is connected with a driving mechanism, a feeding hole 5 is formed in the screen printing frame 9, and a plurality of uniformly distributed discharging through holes are formed in the central area of the screen printing bottom plate 10;
the conveyor belt 3 is provided with two guide block groups 4 arranged at intervals, each guide block group 4 is formed by sequentially arranging a plurality of guide blocks 41 along the advancing direction of the material carrying plate 6, and the lower surface of the material carrying plate 6 is provided with two guide sliding chutes 17 used for being matched with the guide block groups 4;
a material guide plate 11 is arranged in the screen printing frame 9 and above the scraper 14, a concave area is formed on the material guide plate 11 and outside the area of the screen printing bottom plate 10 with the discharging through hole, a plurality of discharging holes distributed at intervals are formed on the concave area, a discharging pipe 20 is connected below each discharging hole, and a valve 21 is arranged on the discharging pipe 20.
A heater 18 is installed on the inner top surface of the bracket 7.
The four corners of the screen printing bottom plate 10 are respectively provided with one positioning column 15.
When adopting above-mentioned automatic screen printing equipment, the theory of operation does: when the automatic silk-screen printing machine works, a material carrying plate with a circuit board is placed on a material carrying roller frame at one end of a workbench, a guide ring is embedded into a guide chute, a rotating roller on a connecting roller moves to push the material carrying plate to move the material carrying plate onto a conveying belt, a guide block on a first conveying belt is embedded into the guide chute when the material carrying plate moves conveniently through an expansion opening at one end of the guide chute, the conveying belt is started to drive the material carrying plate to move, when the material carrying plate reaches a specified position, the conveying belt stops working temporarily, a cylinder pushes a silk-screen frame and a silk-screen bottom plate to move until the silk-screen frame descends until a positioning column is inserted into a positioning hole to enable a valve at a discharge opening to be opened when the bottom surface of the silk-screen bottom plate is attached to the top surface of the circuit board, a guide rod can enable the silk-screen frame to move more stably, tin powder falls on the silk-screen bottom plate through an inclined surface of the material carrying plate, then the valve is closed, one side of a scraper is contacted with the top surface of the silk-screen bottom plate, a driving mechanism drives a sliding block to do reciprocating motion, make the scraper blade drive tin powder and remove, fall on the circuit board through the hole on the silk screen printing bottom plate, make every solder joint of tin powder on the circuit board enough, finally, the cylinder shrink resets, and the conveyer belt starts after that, and when 3 drives and carries the flitch and remove the heater below when the conveying, the heater can make the tin powder of solder joint department melt and form the tin pearl on the circuit board.
A bracket is arranged above a workbench, an air cylinder is arranged at the top of the bracket, a piston rod of the air cylinder penetrates through the bracket, the lower end of the piston rod is connected with a screen printing frame which can move up and down above a conveyor belt, a screen printing bottom plate is arranged at the bottom of the screen printing frame, at least two positioning columns are arranged on the lower surface of the screen printing bottom plate, positioning holes matched with the positioning columns are arranged on a material carrying plate, a chute is respectively arranged on two inner walls opposite to the screen printing frame and above the screen printing bottom plate, a slide block which can move back and forth in the chute is arranged in each chute, the two slide blocks are connected through a mounting rod provided with a scraper blade, the lower end surface of the obliquely arranged scraper blade is contacted with the upper surface of the screen printing bottom plate, at least one slide block is connected with a driving mechanism, a feed inlet is arranged on the screen printing frame, a plurality of uniformly distributed discharge through holes are arranged in the central area of the screen printing bottom plate, the automatic operation of feeding, transporting and tin powder coating is realized, the position precision of the circuit board in the operation process can be ensured, the deviation is avoided, and the processing precision and efficiency are improved;
the conveying belt is provided with two guide block groups arranged at intervals, each guide block group is formed by sequentially arranging a plurality of guide blocks along the advancing direction of the material carrying plate, and the lower surface of the material carrying plate is provided with two guide chutes matched with the guide block groups, so that the position accuracy of the material carrying plate in the whole process of material carrying and processing is ensured, the circuit board on the material carrying plate is prevented from deviating, and the processing accuracy is improved;
and in addition, be provided with a stock guide in its silk screen frame and be located the scraper blade top, the outside that the stock guide is last and be located the silk screen bottom plate and have ejection of compact through-hole region is formed with a recessed area, it has a plurality of interval distribution's discharge opening to open on this recessed area, the below of every discharge opening is connected with the discharging pipe, install the valve on the discharging pipe, the tin powder that comes from the feed inlet falls into on the silk screen bottom plate through the discharging pipe on the stock guide, both can guarantee the homogeneity that the tin powder distributes, can avoid the unordered waste that leads to and the erosion damage to the part that wafts of tin powder again, further improve the efficiency and the precision of processing.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (4)
1. The utility model provides an automatic change screen printing equipment, is including workstation (1) of installing conveyer belt (3), connecting roller frame (2) that are located workstation (1) front end and year flitch (6) that are used for placing the circuit board, it can convey its characterized in that to carry flitch (6) between connecting roller frame (2) and conveyer belt (3): a support (7) is arranged above the workbench (1), an air cylinder (8) is installed at the top of the support (7), a piston rod of the air cylinder (8) penetrates through the support (7), the lower end of the piston rod is connected with a screen printing frame (9) capable of moving up and down above the conveyor belt (3), a screen printing bottom plate (10) is installed at the bottom of the screen printing frame (9), at least two positioning columns (15) are arranged on the lower surface of the screen printing bottom plate (10), and positioning holes (16) matched with the positioning columns (15) are formed in the material carrying plate (6);
the screen printing frame is characterized in that sliding grooves (12) are respectively arranged on two opposite inner walls of the screen printing frame (9) and above the screen printing bottom plate (10), a sliding block (13) capable of moving in the sliding groove (12) in a reciprocating manner is arranged in each sliding groove (12), the two sliding blocks (13) are connected through an installation rod (19) provided with a scraper (14), the lower end face of the obliquely arranged scraper (14) is contacted with the upper surface of the screen printing bottom plate (10), at least one sliding block (13) is connected with a driving mechanism, a feeding hole (5) is formed in the screen printing frame (9), and a plurality of uniformly distributed discharging through holes are formed in the central area of the screen printing bottom plate (10);
the conveying belt (3) is provided with two guide block groups (4) arranged at intervals, each guide block group (4) is formed by sequentially arranging a plurality of guide blocks (41) along the advancing direction of the material carrying plate (6), and the lower surface of the material carrying plate (6) is provided with two guide sliding grooves (17) used for being matched with the guide block groups (4);
the screen printing frame is characterized in that a material guide plate (11) is arranged in the screen printing frame (9) and above the scraper (14), a concave area is formed on the outer side of the screen printing bottom plate (10) with the discharging through hole area, a plurality of discharging holes distributed at intervals are formed in the concave area, a discharging pipe (20) is connected below each discharging hole, and a valve (21) is installed on each discharging pipe (20).
2. An automated screen printing apparatus according to claim 1, wherein: and a heater (18) is arranged on the top surface inside the bracket (7).
3. An automated screen printing apparatus according to claim 1 or 2, wherein: four corners of the silk screen printing bottom plate (10) are respectively provided with one positioning column (15).
4. An automated screen printing apparatus according to claim 3, wherein: the material loading roller frame is provided with a guide ring (22) matched with the guide chute (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122078147.0U CN215882965U (en) | 2021-08-31 | 2021-08-31 | Automatic screen printing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122078147.0U CN215882965U (en) | 2021-08-31 | 2021-08-31 | Automatic screen printing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215882965U true CN215882965U (en) | 2022-02-22 |
Family
ID=80503033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122078147.0U Active CN215882965U (en) | 2021-08-31 | 2021-08-31 | Automatic screen printing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215882965U (en) |
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2021
- 2021-08-31 CN CN202122078147.0U patent/CN215882965U/en active Active
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