CN211567251U - Solder paste printing machine is used in processing of power module PCB board - Google Patents

Abstract

The utility model relates to a lithography apparatus technical field just discloses a power module is tin cream printing machine for PCB board processing, which comprises a housin, the top surface fixed mounting of casing has the guide rail, the inner chamber bottom fixed mounting of guide rail has the rack, the higher authority meshing of rack has the gear pole, the flitch has been cup jointed in the surface activity of gear pole, the preceding fixed mounting who goes up the flitch has frame one, the left fixed mounting of frame one has motor one, the fixed cup joint of output of motor one has gear one. The utility model discloses a length value of scraper equals the width value of seting up the direction groove above the steel mesh, makes the inner chamber of seting up the direction groove above the tin cream that spills over from the scraper both ends directly flows the steel mesh, then sets up the guiding gutter through the bottom of seting up square groove above the steel mesh and flows, can carry out recycle to the tin cream that the tin cream spilled over, has increased the practicality of device, does not need the manual work to clean the steel mesh, has guaranteed the clean and tidy nature of device.

Description

Solder paste printing machine is used in processing of power module PCB board

Technical Field

The utility model relates to a lithography apparatus technical field specifically is a power module is tin cream printing machine for PCB board processing.

Background

The solder paste is gray paste, is a novel welding material produced along with SMT, is a paste mixture formed by mixing solder powder, soldering flux and other surfactants, thixotropic agents and the like, and is mainly used for welding electronic components such as surface resistors, capacitors, I C and the like of PCBs in the SMT industry.

Solder paste printing machine, at first the circuit board that will print is fixed on the locating station, then pass through the steel mesh screen printing on corresponding the circuit board by the scraper to the solder paste, circuit board after will screen printing is even again (PCB board promptly) carry out automatic paster in inputing the chip mounter through the transmission platform, current solder paste printing machine is when carrying out the scraper operation, because of in the solder paste volume too much, the scraper in-process solder paste can be along scraper outside to both sides, make the position that the printing work platform surface lies in the scraper both sides collect the solder paste, need personnel often to clean with retention device's clean and tidy.

The existing solder paste printer occupies a small amount of solder paste on the upper and lower surfaces of a steel mesh after printing a circuit board, and when the next group of circuit boards are printed, the circuit boards are possibly stained with the solder paste left by the last printing, so that the production quality of products is reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a power module is solder paste printing machine for PCB board processing possesses the solder paste that removes the steel mesh surface and clears up, guarantees the clean and tidy nature of device, improves the advantage of the quality of product, has solved the problem that proposes among the above-mentioned background art.

The utility model provides a following technical scheme: a solder paste printing machine for processing a power module PCB comprises a shell, wherein a guide rail is fixedly installed on the top surface of the shell, a rack is fixedly installed at the bottom of an inner cavity of the guide rail, a gear rod is meshed on the upper surface of the rack, a feeding plate is sleeved on the surface of the gear rod in a movable mode, a first rack is fixedly installed in front of the feeding plate, a first motor is fixedly installed on the left surface of the first rack, a first gear is fixedly sleeved on the output end of the first motor, a clamping groove is formed in the middle of the feeding plate, an air cylinder is fixedly installed at the bottom of the inner cavity of the shell, a pushing head is movably connected to the top end of the air cylinder, a polished rod is fixedly installed at the bottom of the inner cavity of the clamping groove, a lifting plate is movably connected to the surface of the polished rod, a circuit board is fixedly installed at, the utility model discloses a steel mesh, including the top surface of steel mesh, both ends fixed mounting has the bracing piece around the top surface of steel mesh, fixed mounting has frame two above the preceding top of bracing piece, fixed mounting has motor two above the frame two, the fixed threaded rod that has cup jointed of output of motor two, the surperficial swing joint of threaded rod has the movable block, the right side fixed mounting of movable block has the workbin, the below fixed mounting of workbin has the scraper, the upper and lower two sides roll connection of steel mesh has the band pulley pole, the surperficial swing joint of band pulley pole has the stopper, the middle part fixed mounting of stopper has the brush board, the left side swing joint of band pulley pole has the connecting plate, the left side fixed mounting of connecting plate has frame three, the higher.

Preferably, the upper side of the rack is meshed with a gear rod, the right side of the gear rod is meshed with a first gear, and the length value of the gear rod is equal to the distance value between the two racks.

Preferably, the top surface of the pushing head is fixedly arranged at the center of the bottom surface of the lifting plate, and the pushing head penetrates through and extends to the upper part of the clamping groove.

And carefully selecting, wherein the top surface of the polished rod is positioned below the steel mesh, and the sum of the height value of the polished rod and the height value of the lifting plate is equal to the distance value from the bottom surface of the steel mesh to the bottom surface of the inner cavity of the clamping groove.

Carefully selecting, a square groove is formed in the upper surface of the steel mesh, and a diversion trench is formed in the bottom of the square groove formed in the upper surface of the steel mesh.

And carefully selecting, wherein the length value of the scraper is equal to the width value of the direction groove formed on the steel mesh, and the length value of the scraper is smaller than that of the brush plate.

And carefully selecting, wherein the height value of the brush plate is greater than that of the limiting block, and the bottom surface of the limiting block is attached to the steel mesh.

And carefully selecting, wherein the output end of the motor III is fixedly sleeved with the left side of the belt wheel rod positioned on the steel mesh.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. the utility model discloses a length value of scraper equals the width value of seting up the direction groove above the steel mesh, makes the inner chamber of seting up the direction groove above the tin cream that spills over from the scraper both ends directly flows the steel mesh, then sets up the guiding gutter through the bottom of seting up square groove above the steel mesh and flows, can carry out recycle to the tin cream that the tin cream spilled over, has increased the practicality of device, does not need the manual work to clean the steel mesh, has guaranteed the clean and tidy nature of device.

2. The utility model discloses a after the scraper prints the circuit board at every turn, three drive band pulley levers of motor rotate, make band pulley lever drive stopper and brush board remove with below the higher authority of steel mesh, the brush board cleans the inner chamber of hourglass seal to the surface of steel mesh and the steel mesh, makes a small amount of tin cream that the steel mesh was stained with clear away through the brush board, has avoided next circuit board to be stained with the last tin cream that the printing left when printing, has improved the production quality of product.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a structural gear of the present invention;

FIG. 3 is a schematic view of the structural connection plate of the present invention;

FIG. 4 is a schematic view of the structural steel mesh of the present invention;

fig. 5 is an enlarged schematic view of the structure a of the present invention.

In the figure: 1. a housing; 2. a guide rail; 3. a rack; 4. a gear lever; 5. feeding plates; 6. a first machine frame; 7. a first motor; 8. a first gear; 9. a card slot; 10. a cylinder; 11. pushing the head; 12. a polish rod; 13. a lifting plate; 14. a circuit board; 15. a support block; 16. a steel mesh; 17. a support bar; 18. a second frame; 19. a second motor; 20. a threaded rod; 21. a moving block; 22. a material box; 23. a scraper; 24. a pulley bar; 25. a limiting block; 26. a brush plate; 27. a connecting plate; 28. a third frame; 29. and a third motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a solder paste printer for processing a power module PCB comprises a housing 1, a guide rail 2 is fixedly installed on the top surface of the housing 1, a circuit board 14 is placed on a lifting plate 13 when a feeding plate 5 moves to the left and right ends of the guide rail 2, the circuit board 14 is brought above a cylinder 10 through the feeding plate 5, a rack 3 is fixedly installed at the bottom of an inner cavity of the guide rail 2, the upper surface of the rack 3 is meshed with a gear rod 4, the right surface of the gear rod 4 is meshed with a first gear 8, the length of the gear rod 4 is equal to the distance between the two racks 3, a first motor 7 drives the first gear 8 to rotate, the first gear 8 is meshed with a gear rod 4, the gear rod 4 is meshed with the rack 3, the gear rod 4 can drive the feeding plate 5 to move on the upper surface of the rack 3 in the right direction, the gear rod 4 is meshed with the gear rod 4, the feeding plate 5 is movably sleeved on the, a first rack 6 is fixedly installed in front of the feeding plate 5, a first motor 7 is fixedly installed on the left side of the first rack 6, a first gear 8 is fixedly sleeved on an output end of the first motor 7, a clamping groove 9 is formed in the middle of the feeding plate 5, an air cylinder 10 is fixedly installed at the bottom of an inner cavity of the shell 1, a push head 11 is movably connected to the top end of the air cylinder 10, the top surface of the push head 11 is fixedly installed in the center of the bottom surface of the lifting plate 13, the push head 11 penetrates through and extends to the upper side of the clamping groove 9, the air cylinder 10 pushes the push head 11 to move upwards, the lifting plate 13 drives the circuit board 14 to move upwards to the bottom surface of the steel mesh 16, a polish rod 12 is fixedly installed at the bottom of the inner cavity of the clamping groove 9, the top surface of the polish rod 12 is located below the steel mesh 16, the sum of the height value of the polish rod 12 and the, meanwhile, the interference of the polished rod 12 and the steel mesh 16 when the feeding plate 5 moves is avoided, the surface of the polished rod 12 is movably connected with a lifting plate 13, a circuit board 14 is fixedly arranged in the center of the top surface of the lifting plate 13, a supporting block 15 is fixedly arranged on the upper surface of the guide rail 2, the steel mesh 16 is fixedly arranged on the top surface of the supporting block 15, a heating device is arranged inside the steel mesh 16, the solder paste can be prevented from being stuck to a square groove and an inner cavity of the flow guide groove through the heating device, the blockage is avoided, the square groove is formed on the upper surface of the steel mesh 16, the flow guide groove is formed at the bottom of the square groove formed on the upper surface of the steel mesh 16, the solder paste flows out through the flow guide groove formed at the bottom of the square groove formed on the upper surface of the steel mesh 16, the solder paste overflowing can be recycled, the, a second motor 19 is fixedly installed on the second frame 18, a threaded rod 20 is fixedly sleeved at the output end of the second motor 19, the second motor 19 drives the threaded rod 20 to rotate, a moving block 21 meshed on the surface of the threaded rod 20 drives a scraper 23 to move back and forth on the steel mesh 16, a moving block 21 is movably connected to the surface of the threaded rod 20, a feed box 22 is fixedly installed on the right side of the moving block 21, a scraper 23 is fixedly installed below the feed box 22, solder paste in the feed box 22 flows from a leakage printing on the surface of the steel mesh 16 to the surface of the circuit board 14 to be printed through the guiding of the scraper 23, the length value of the scraper 23 is equal to the width value of a direction groove formed in the steel mesh 16, the length value of the scraper 23 is smaller than the length value of the hairbrush plate 26, the length value of the scraper 23 is equal to the width value of the direction groove formed in the steel mesh 16, the upper surface and the lower surface of the steel mesh 16 are connected with a belt wheel rod 24 in a rolling way, the surface of the belt wheel rod 24 is movably connected with a limiting block 25, the middle part of the limiting block 25 is fixedly provided with a brush plate 26, the height value of the brush plate 26 is larger than that of the limiting block 25, the bottom surface of the limiting block 25 is attached to the steel mesh 16, the brush plate 26 cleans the surface of the steel mesh 16 and the inner cavity of the steel mesh 16 for cleaning and printing, so that a small amount of tin paste stained on the steel mesh 16 is removed through the brush plate 26, the phenomenon that the next circuit board 14 is stained with the tin paste left by the previous printing during the printing is avoided, the left surface of the belt wheel rod 24 is movably connected with a connecting plate 27, the left surface of the connecting plate 27 is fixedly provided with a rack three 28, the upper surface of the rack three 28 is fixedly provided with a motor three 29, the output end of the motor three 29 is fixedly, the third motor 29 drives the pulley rod 24 to rotate, so that the pulley rod 24 drives the limit block 25 and the brush plate 26 to move above and below the steel mesh 16.

The working principle is as follows: when the tin paste printing machine is used, the first motor 7 drives the first gear 8 to rotate, the first gear 8 is meshed with the gear rod 4, the gear rod 4 is meshed with the rack 3, the gear rod 4 can drive the feeding plate 5 to move left and right on the rack 3, the circuit board 14 is placed on the lifting plate 13 when the feeding plate 5 moves to the left end and the right end of the guide rail 2, the circuit board 14 is brought above the air cylinder 10 through the feeding plate 5, the air cylinder 10 pushes the pushing head 11 to move upwards, the lifting plate 13 drives the circuit board 14 to move upwards to the bottom surface of the steel mesh 16, the second motor 19 drives the threaded rod 20 to rotate, the moving block 21 meshed on the surface of the threaded rod 20 drives the scraper 23 to move back and forth on the steel mesh 16, tin paste in the bin 22 flows from a leaked printing on the surface of the steel mesh 16 to the surface of the circuit board 14 to be printed through the guide of the scraper 23, and the third motor 29 drives the, make the band pulley pole 24 drive stopper 25 and brush board 26 remove on and below the steel mesh 16, brush board 26 cleans the inner chamber of leaking the seal on the surface of steel mesh 16 and the steel mesh 16, make a small amount of tin cream that steel mesh 16 was stained with clear away through brush board 26, avoided next circuit board 14 to be stained with the tin cream that last printing left when printing, the length value of scraper 23 equals the width value of seting up the direction groove above the steel mesh 16, make the inner chamber of seting up the direction groove above flowing steel mesh 16 directly of the tin cream that spills over from scraper 23 both ends, then set up the guiding gutter through the bottom of seting up the square groove above the steel mesh 16 and flow, can recycle the tin cream that the tin cream spilled over, do not need the manual work to clean steel mesh 16.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Simultaneously in the utility model discloses an in the drawing, fill the pattern and just do not do any other injecions for distinguishing the picture layer.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a power module PCB processing is with tin cream printing machine, includes casing (1), its characterized in that: the top surface of the shell (1) is fixedly provided with a guide rail (2), the bottom of an inner cavity of the guide rail (2) is fixedly provided with a rack (3), the upper surface of the rack (3) is meshed with a gear rod (4), the surface of the gear rod (4) is sleeved with a feeding plate (5), the front of the feeding plate (5) is fixedly provided with a rack I (6), the left surface of the rack I (6) is fixedly provided with a motor I (7), the output end of the motor I (7) is fixedly sleeved with a gear I (8), the middle of the feeding plate (5) is provided with a clamping groove (9), the bottom of the inner cavity of the shell (1) is fixedly provided with an air cylinder (10), the top end of the air cylinder (10) is movably connected with a push head (11), the bottom of the inner cavity of the clamping groove (9) is fixedly provided with a polished rod (12), and the surface of, a circuit board (14) is fixedly mounted at the center of the top surface of the lifting plate (13), a supporting block (15) is fixedly mounted on the guide rail (2), a steel mesh (16) is fixedly mounted on the top surface of the supporting block (15), supporting rods (17) are fixedly mounted at the front end and the rear end of the top surface of the steel mesh (16), a second rack (18) is fixedly mounted on the front top end of the supporting rod (17), a second motor (19) is fixedly mounted on the second rack (18), a threaded rod (20) is fixedly connected to the output end of the second motor (19) in a sleeved mode, a moving block (21) is movably connected to the surface of the threaded rod (20), a material box (22) is fixedly mounted on the right side of the moving block (21), a scraper (23) is fixedly mounted below the material box (22), and a pulley rod (24) is, the utility model discloses a hair brush, including the pulley pole, the surperficial swing joint of pulley pole (24) has stopper (25), the middle part fixed mounting of stopper (25) has brush board (26), the left surface swing joint of pulley pole (24) has connecting plate (27), the left surface fixed mounting of connecting plate (27) has three (28) of frame, the higher authority fixed mounting of three (28) of frame has motor three (29).

2. The solder paste printer for processing the power module PCB as recited in claim 1, wherein: the upper surface of the rack (3) is meshed with the gear rod (4), the right surface of the gear rod (4) is meshed with the first gear (8), and the length value of the gear rod (4) is equal to the distance value between the two racks (3).

3. The solder paste printer for processing the power module PCB as recited in claim 1, wherein: the top surface of the push head (11) is fixedly arranged at the center of the bottom surface of the lifting plate (13), and the push head (11) penetrates through and extends to the upper part of the clamping groove (9).

4. The solder paste printer for processing the power module PCB as recited in claim 1, wherein: the top surface of the polish rod (12) is positioned below the steel mesh (16), and the sum of the height value of the polish rod (12) and the height value of the lifting plate (13) is equal to the distance value from the bottom surface of the steel mesh (16) to the bottom surface of the inner cavity of the clamping groove (9).

5. The solder paste printer for processing the power module PCB as recited in claim 1, wherein: the upper surface of the steel mesh (16) is provided with a square groove, and the bottom of the square groove arranged on the steel mesh (16) is provided with a diversion trench.

6. The solder paste printer for processing the power module PCB as recited in claim 1, wherein: the length value of the scraper (23) is equal to the width value of the steel mesh (16) provided with the direction groove, and the length value of the scraper (23) is smaller than that of the brush plate (26).

7. The solder paste printer for processing the power module PCB as recited in claim 1, wherein: the height value of the brush plate (26) is larger than that of the limiting block (25), and the bottom surface of the limiting block (25) is attached to the steel mesh (16).

8. The solder paste printer for processing the power module PCB as recited in claim 1, wherein: the output end of the motor III (29) is fixedly sleeved with the left side of the belt wheel rod (24) positioned on the steel mesh (16).

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