An SMT solder paste printer cleaning device with anti-caking function

Abstract

The present invention belongs to the technical field of printing machine cleaning, and specifically relates to an SMT solder paste printing machine cleaning device with an anti-caking function, comprising a working machine platform and a lifting platform, the lifting platform is provided with a mounting block, the mounting block is provided with a fixed horizontal platform, the fixed horizontal platform is provided with a fixing plate, the fixing plate is provided with a steel mesh, the steel mesh is provided with a frame, the frame is provided with a first positioning hole, the frame is provided with a second positioning hole, the fixed horizontal platform is provided with an assembly plate, the assembly plate is provided with a first fixing bolt, the assembly plate is provided with a second fixing bolt, the second fixing bolt is provided with a first guide block, the first guide block comprises a first horizontal plate and a first inclined platform, the fixed horizontal platform is provided with a motor, the motor is provided with a screw, the fixed horizontal platform is provided with a positioning rod, the fixed horizontal platform is provided with a collecting trough, the collecting trough is provided with an opening, the opening is provided with a movable plate, the movable plate is provided with a positioning hole, the movable plate is elastically connected with a scraper, and the collecting trough is provided with a switch cover.

Description

Technical Field

[0001] The invention belongs to the technical field of printing machine cleaning, and in particular relates to an SMT solder paste printing machine cleaning device with an anti-caking function. Background Art

[0002] As digital electronic technology matures day by day, people are more and more likely to use electronic products, and even cannot do without them. The core of these electronic devices is inseparable from circuit boards. In circuit board production, SMT technology is the most popular technology and process, and SMT solder paste printers are usually used to print circuit boards.

[0003] Modern solder paste printers are divided into two types: semi-automatic and fully automatic. Their working principle is: first fix the circuit board to be printed on the printing positioning table, and then the left and right scrapers of the printer print the solder paste or red glue through the steel mesh to the corresponding pads. The PCB with uniform printing is input to the placement machine through the transmission table for automatic placement.

[0004] However, when the solder paste printer is printing, the solder paste is usually placed on the steel mesh, and the printing unit is moved left and right to print on the PCB. Since the width of the steel mesh is often longer than the length of the printing unit, during the printing process, some of the solder paste will flow through the printing unit to the front and back sides of the steel mesh and adhere to the front and back sides of the frame to form lumps. After printing, it is usually necessary to manually use a scraper to scrape off the remaining lumped solder paste, which increases the labor workload and has low cleaning efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide an SMT solder paste printer cleaning device with an anti-caking function to solve the problem that during the printing process, part of the solder paste will flow through the printing unit to the front and rear sides of the steel mesh and adhere to the front and rear sides of the frame to form lumps. After printing, it is usually necessary to manually use a scraper to scrape off the remaining agglomerated solder paste, which increases the labor workload and has low cleaning efficiency.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0007] A cleaning device for an SMT solder paste printer with an anti-caking function comprises a working machine and a lifting machine platform, the working machine platform is provided with a placing platform, the lifting machine platform is provided with a lifting unit, a moving unit and a printing unit, mounting blocks are further provided at the left and right ends of the lifting machine platform, two mounting blocks are both provided with a fixed horizontal platform, the bottom of the two fixed horizontal platforms facing each other are provided with a fixed plate, a steel mesh is provided between the two fixed plates, a frame is provided around the steel mesh, a first positioning hole is provided at the middle of the left and right ends of the frame, second positioning holes are provided at the front and back sides of the left and right ends of the frame, an assembly plate is provided at the upper ends of the two fixed horizontal platforms facing each other, a first fixing bolt matching the first positioning hole is provided in the middle of the assembly plate, a second fixing bolt matching the second positioning hole is provided at the front and back sides of the assembly plate, the second fixing bolt at the front side is provided with a first guide block, the first guide block comprises a first horizontal plate and a first inclined platform, the first horizontal plate and the first inclined platform are integrally formed, the first horizontal plate extends to the front side of the frame, the second fixing bolt at the front side is rotatably connected to the first horizontal plate, the first The inclined platform is inclined from top to bottom from the edge of the frame to the middle of the frame, the front side of the first inclined platform abuts against the front side of the frame, the second fixing bolt on the rear side is provided with a second guide block, the second guide block includes a second transverse plate and a second inclined platform, the second transverse plate and the second inclined platform are integrally formed, the second transverse plate extends to the rear side of the frame, the second fixing bolt on the rear side is rotatably connected with the second transverse plate, the second inclined platform is inclined from top to bottom from the edge of the frame to the middle of the frame, the rear side of the second inclined platform abuts against the rear side of the frame, and the front and rear sides of the fixed transverse platform at the left end are provided with electric Machine, the two motors are each provided with a screw, the two screws are respectively rotatably connected to the two fixed horizontal platforms, a positioning rod is provided between the front and rear sides of the two fixed horizontal platforms, the front and rear sides of the two fixed horizontal platforms are provided with a collecting groove, the collecting groove is provided with an opening, the opening at one end is provided with a movable plate rotatably connected to the screw thread, when the scraper contacts the first inclined platform and the second inclined platform, the scraper can be elastically retracted into the movable plate, the movable plate is also provided with a positioning hole matching the positioning rod, the movable plate is elastically connected to the scraper, and a switch cover is provided at the bottom of the collecting groove.

[0008] By adopting the technical solution of the present invention, an operator places the PCB board to be printed on the placing platform of the working machine, and fixes the left and right ends of the frame of the steel mesh to the fixed horizontal platform of the mounting block respectively. When fixing, first place the left and right ends of the frame on the fixed plate of the fixed horizontal platform, align the first positioning holes on the left and right ends of the frame with the first fixing bolts on the assembly plate, and rotate the first fixing bolt to move downward to abut against the fixing plate, so that the left and right ends of the frame are initially fixed, and then, the second fixing bolts on the front and rear sides are rotated to move the first guide block and the second guide block downward until the first horizontal plate of the first guide block is close to the frame, the lower end of the first inclined platform is close to the steel mesh, the front side is close to the front side of the frame, the second horizontal plate of the second guide block is close to the frame, the lower end of the second inclined platform is close to the steel mesh, and the rear side is close to the rear side of the frame. At this time, the second fixing bolts on the front and rear sides can fix the left and right ends of the frame again, and finally the operator can start the solder paste printer, so that the lifting unit lowers the steel mesh, and the moving unit drives the printing unit to print the solder paste on the PCB board;

[0009] As the printing unit prints back and forth, part of the solder paste flows to the front and rear sides of the frame. After printing is completed, the operator can control the motor to rotate to drive the screw to rotate. Since the screw is connected to the moving plate through a threaded rotation, and the moving plate does not rotate with the screw through the cooperation between the positioning rod and the positioning hole, when the screw rotates, the moving plates on the front and rear sides move from the opening of the collecting tank at one end to the opening of the collecting tank at the other end. When the front and rear moving plates move to the first inclined platform and the second inclined platform at one end, the scraper will gradually extend out under the action of elasticity until the two moving plates leave one side. After the first inclined platform and the second inclined platform at the end, the scraper is completely ejected and abuts against the front and rear sides of the steel mesh, so that the remaining solder paste on the front and rear sides of the frame is completely scraped off when the front and rear two moving plates move toward the collecting tank at the other end, until the moving plate moves to the first inclined platform and the second inclined platform at the other end, the scraper will gradually retract the moving plate, and push the solder paste through the first inclined platform and the second inclined platform at the other end into the collecting tank at the other end for collection. Finally, people can recycle the solder paste collected in the collecting tank by opening the switch cover, thereby avoiding the tediousness of manual scraping and improving the cleaning efficiency.

[0010] The present invention solves the problem that during the printing process, part of the solder paste flows through the printing unit to the front and rear sides of the steel mesh and adheres to the front and rear sides of the frame to form lumps. After printing, it is usually necessary to manually use a scraper to scrape off the remaining lumped solder paste, which increases the labor workload and has low cleaning efficiency.

[0011] It is further defined that the left and right ends of the front side of the movable plate on the front side are provided with a first stopper matching the front side of the frame, the front end of the fixed horizontal platform is provided with a first assembly groove matching the first stopper, and the left and right ends of the rear side of the movable plate on the rear side are provided with a second stopper matching the rear side of the frame, and the rear end of the fixed horizontal platform is provided with a second assembly groove matching the second stopper. With such a structure, when the movable plates on the front and rear sides move to make the scraper scrape off the residual solder paste on the front and rear sides of the steel mesh, the first stopper and the second stopper can prevent the solder paste from falling from the frame.

[0012] It is further defined that a first limiting mechanism is provided between the first guide block and the fixed horizontal platform, the first limiting mechanism includes a first limiting slider provided on the first guide block and a first limiting slot provided on the fixed horizontal platform, the first limiting slider matches the first limiting slot. Such a structure can prevent the first guide block from rotating with the first fixing bolt when people rotate it.

[0013] It is further defined that a second limiting mechanism is provided between the second guide block and the fixed horizontal platform, the second limiting mechanism includes a second limiting slider provided on the second guide block and a second limiting slot provided on the fixed horizontal platform, the second limiting slider matches the second limiting slot. Such a structure can prevent the second guide block from rotating with the second fixing bolt when people rotate it.

[0014] It is further defined that the movable plate is provided with an empty groove inside, and a plurality of return springs are connected between the empty groove and the scraper plate. Such a structure makes the elastic connection structure between the movable plate and the scraper plate simple and convenient for processing and assembly.

[0015] It is further defined that the switch cover is provided with a switch handle. Such a structure enables people to open the switch cover by operating the switch handle and take out the solder paste in the collecting tank for recycling.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. By starting the motor and driving the screw to rotate, the moving plate can drive the scraper to move to the collection slot on the other side to scrape off the solder paste left on the front and back sides of the frame until the solder paste is pushed into the collection slot on the other side for collection, so that the operator can easily clean the solder paste left on the front and back sides of the frame, reducing the labor of the workers and improving the cleaning efficiency;

[0018] 2. When the movable plates on the front and rear sides move to allow the scraper to scrape off the remaining solder paste on the front and rear sides of the steel mesh, the first stopper and the second stopper can prevent the solder paste from falling from the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a cleaning device for an SMT solder paste printer with an anti-caking function according to the present invention;

[0021] Figure 2 It is a left-side schematic diagram of a fixed horizontal platform of an embodiment of a cleaning device for an SMT solder paste printer with an anti-caking function of the present invention;

[0022] Figure 3 It is a right side schematic diagram of a fixed horizontal platform structure of an embodiment of a cleaning device for an SMT solder paste printer with an anti-caking function of the present invention;

[0023] Figure 4 for Figure 3 A schematic diagram of the structure at A;

[0024] Figure 5 This is a schematic diagram of the bottom structure of a fixed horizontal platform of an embodiment of a cleaning device for an SMT solder paste printer with an anti-caking function of the present invention;

[0025] Figure 6 A schematic diagram of a partial cross-sectional structure of a scraper of an embodiment of a cleaning device for an SMT solder paste printer with an anti-caking function according to the present invention;

[0026] Figure 7 A schematic diagram of a steel mesh structure of an embodiment of a cleaning device for an SMT solder paste printer with an anti-caking function according to the present invention;

[0027] The main component symbols are described as follows:

[0028] Working machine 1, placing platform 11, lifting platform 2, lifting unit 21, moving unit 22, printing unit 23, mounting block 24, fixed horizontal platform 31, fixed plate 311, assembly plate 312, first fixing bolt 313, second fixing bolt 314, first guide block 315, first horizontal plate 3151, first inclined platform 3152, second guide block 316, second horizontal plate 3161, second inclined platform 3162, first assembly groove 317, second assembly groove 318, steel mesh 32, frame 321, first positioning hole 322, second positioning hole 323, motor 33, screw 331, positioning rod 34, collecting groove 35, opening 351, moving plate 352, positioning hole 3521, scraper 3522, empty groove 3523, return spring 3524, switch cover 353, switch handle 3531, first stop block 354, second stop block 355, first limiting slide block 41, first limiting slide groove 42, second limiting slide block 43, second limiting slide groove 44. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0030] like Figure 1-Figure 7 As shown, a cleaning device for an SMT solder paste printer with an anti-caking function of the present invention comprises a working machine 1 and a lifting machine 2, wherein the working machine 1 is provided with a placing platform 11, and the lifting machine 2 is provided with a lifting unit 21, a moving unit 22 and a printing unit 23, and mounting blocks 24 are further provided at the left and right ends of the lifting machine 2, and both mounting blocks 24 are provided with fixed horizontal platforms 31, and the bottoms of the two fixed horizontal platforms 31 facing each other are provided with fixed plates 311, and a steel mesh 32 is provided between the two fixed plates 311, and a frame body 321 is provided around the steel mesh 32, and the middle parts of the left and right ends of the frame body 321 are provided with first positioning holes 322, and the front and rear sides of the left and right ends of the frame body 321 are provided with second positioning holes 323. 23, the upper ends of the two fixed horizontal platforms 31 facing each other are each provided with an assembly plate 312, a first fixing bolt 313 matching the first positioning hole 322 is provided in the middle of the assembly plate 312, and second fixing bolts 314 matching the second positioning hole 323 are provided on both the front and rear sides of the assembly plate 312, and the front second fixing bolt 314 is provided with a first guide block 315, and the first guide block 315 includes a first horizontal plate 3151 and a first inclined platform 3152, the first horizontal plate 3151 and the first inclined platform 3152 are integrally formed, the first horizontal plate 3151 extends toward the front side of the frame body 321, the front second fixing bolt 314 is rotatably connected to the first horizontal plate 3151, and the first inclined platform 3152 is connected to the frame body 321. The edge of the frame 321 is inclined from top to bottom toward the middle of the frame 321, the front side of the first inclined platform 3152 is in contact with the front side of the frame 321, the second fixing bolt 314 at the rear side is provided with a second guide block 316, the second guide block 316 includes a second transverse plate 3161 and a second inclined platform 3162, the second transverse plate 3161 and the second inclined platform 3162 are integrally formed, the second transverse plate 3161 extends toward the rear side of the frame 321, the second fixing bolt 314 at the rear side is rotatably connected with the second transverse plate 3161, the second inclined platform 3162 is inclined from the edge of the frame 321 toward the middle of the frame 321 from top to bottom, the rear side of the second inclined platform 3162 is in contact with the rear side of the frame 321, and the front and rear sides of the left end fixed transverse platform 31 Motors 33 are provided on both sides, and the two motors 33 are provided with screws 331. The two screws 331 are respectively rotatably connected to the two fixed horizontal platforms 31. Positioning rods 34 are provided between the front and rear sides of the two fixed horizontal platforms 31. Collecting grooves 35 are provided on the front and rear sides of the two fixed horizontal platforms 31. The collecting grooves 35 are provided with openings 351. One end of the opening 351 is provided with a movable plate 352 which is threadably connected to the screws 331. The movable plate 352 is also provided with a positioning hole 3521 matching the positioning rod 34. The movable plate 352 is elastically connected with a scraper 3522. When the scraper contacts the first inclined platform and the second inclined platform, the scraper can be elastically retracted into the movable plate. A switch cover 353 is provided at the bottom of the collecting groove 35.

[0031] By adopting the technical solution of the present invention, the operator places the PCB board to be printed on the placement platform 11 of the working machine 1, and fixes the left and right ends of the frame 321 of the steel mesh 32 to the fixed horizontal platform 31 of the mounting block 24 respectively. When fixing, first place the left and right ends of the frame 321 on the fixed plate 311 of the fixed horizontal platform 31, align the first positioning holes 322 on the left and right ends of the frame 321 with the first fixing bolts 313 on the assembly plate 312, and rotate the first fixing bolts 313 downward to abut against the fixing plate 311, so that the left and right ends of the frame 321 are initially fixed, and then rotate the second fixing bolts 314 on the front and rear sides to move the first guide block 24. The second guide block 315 and the second guide block 316 move downward until the first horizontal plate 3151 of the first guide block 315 is in close contact with the frame 321, the lower end of the first inclined platform 3152 is in close contact with the steel mesh 32, and the front side is in close contact with the front side of the frame 321, the second horizontal plate 3161 of the second guide block 316 is in close contact with the frame 321, the lower end of the second inclined platform 3162 is in close contact with the steel mesh 32, and the rear side is in close contact with the rear side of the frame 321. At this time, the second fixing bolts 314 on the front and rear sides can fix the left and right ends of the frame 321 again, and finally the operator can start the solder paste printer, so that the lifting unit 21 lowers the steel mesh 32, and the moving unit 22 drives the printing unit 23 to print the solder paste on the PCB board;

[0032] As the printing unit 23 prints back and forth, part of the solder paste flows to the front and rear sides of the frame 321. After printing is completed, the operator can control the motor 33 to rotate to drive the screw 331 to rotate. Since the screw 331 is threadedly connected to the movable plate 352, and the positioning rod 34 cooperates with the positioning hole 3521 to prevent the movable plate 352 from rotating with the screw 331, when the screw 331 rotates, the movable plates 352 on the front and rear sides move from the opening 351 of the collecting tank 35 at one end to the opening 351 of the collecting tank 35 at the other end. When the front and rear movable plates 352 move to the first inclined platform 3152 and the second inclined platform 3162 at one end, the scraper 3522 will gradually extend out under the elastic action until the two movable plates 352 After leaving the first inclined platform 3152 and the second inclined platform 3162 at one end, the scraper 3522 is completely ejected and abuts against the front and rear sides of the steel mesh 32, so that the remaining solder paste on the front and rear sides of the frame 321 is completely scraped off when the front and rear two movable plates 352 move toward the collecting tank 35 at the other end, until the movable plate 352 moves to the first inclined platform 3152 and the second inclined platform 3162 at the other end, the scraper 3522 will gradually retract the movable plate 352, and push the solder paste through the first inclined platform 3152 and the second inclined platform 3162 at the other end into the collecting tank 35 at the other end for collection, and finally people can recycle the solder paste collected in the collecting tank 35 by opening the switch cover 353, thereby avoiding the tediousness of manual scraping and improving the cleaning efficiency;

[0033] The present invention solves the problem that during the printing process, part of the solder paste flows through the printing unit to the front and rear sides of the steel mesh and adheres to the front and rear sides of the frame to form lumps. After printing, it is usually necessary to manually use a scraper to scrape off the remaining lumped solder paste, which increases the labor workload and has low cleaning efficiency.

[0034] Specifically, the left and right ends of the front side of the front movable plate 352 are provided with first blocks 354 matching the front side of the frame 321, the front end of the fixed horizontal platform 31 is provided with a first assembly groove 317 matching the first block 354, the left and right ends of the rear side of the rear movable plate 352 are provided with second blocks 355 matching the rear side of the frame 321, and the rear end of the fixed horizontal platform 31 is provided with a second assembly groove 318 matching the second block 355. With such a structure, when the movable plates 352 on the front and rear sides are moved to make the scraper 3522 scrape the residual solder paste on the front and rear sides of the steel mesh 32, the first block 354 and the second block 355 can prevent the solder paste from falling from the frame 321. In fact, other structures can also be considered according to the situation, so that when the movable plates 352 on the front and rear sides are moved to make the scraper 3522 scrape the residual solder paste on the front and rear sides of the steel mesh 32, the solder paste can be prevented from falling from the frame 321.

[0035] Specifically, a first limiting mechanism is further provided between the first guide block 315 and the fixed horizontal platform 31, and the first limiting mechanism includes a first limiting slider 41 provided on the first guide block 315 and a first limiting slot 42 provided on the fixed horizontal platform 31, and the first limiting slider 41 matches the first limiting slot 42. Such a structure can prevent the first guide block 315 from rotating with the first fixing bolt 313. In fact, other structures can also be considered according to the situation to prevent the first guide block 315 from rotating with the first fixing bolt 313.

[0036] Specifically, a second limiting mechanism is further provided between the second guide block 316 and the fixed horizontal platform 31, and the second limiting mechanism includes a second limiting slider 43 provided on the second guide block 316 and a second limiting slot 44 provided on the fixed horizontal platform 31, and the second limiting slider 43 matches the second limiting slot 44. Such a structure can prevent the second guide block 316 from rotating with the second fixing bolt 314. In fact, other structures can also be considered according to the situation to prevent the second guide block 316 from rotating with the second fixing bolt 314.

[0037] Specifically, a slot 3523 is provided inside the movable plate 352, and a plurality of return springs 3524 are connected between the slot 3523 and the scraper 3522. Such a structure makes the elastic connection structure between the movable plate 352 and the scraper 3522 simple and easy to process and assemble. In fact, other structures can also be considered according to the situation to make the elastic connection structure between the movable plate 352 and the scraper 3522 simple and easy to process and assemble.

[0038] Specifically, the switch cover 353 is provided with a switch handle 3531. Such a structure enables people to open the switch cover 353 by operating the switch handle 3531 to take out and recycle the solder paste in the collection tank 35. In fact, other structures can also be considered according to the situation, so that people can conveniently open the switch cover 353 and take out and recycle the solder paste in the collection tank 35.

[0039] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A cleaning device for an SMT solder paste printer with an anti-caking function, comprising a working platform (1) and a lifting platform (2), wherein the working platform (1) is provided with a placement platform (11), and the lifting platform (2) is provided with a lifting unit (21), a moving unit (22) and a printing unit (23), characterized in that: The left and right ends of the lifting platform (2) are also provided with mounting blocks (24), and the two mounting blocks (24) are both installed with fixed horizontal platforms (31). The bottoms of the two fixed horizontal platforms (31) facing each other are both provided with fixing plates (311), a steel mesh (32) is provided between the two fixing plates (311), and a frame (321) is provided around the steel mesh (32). The middle parts of the left and right ends of the frame (321) are both provided with first positioning holes (322), and the front and rear sides of the left and right ends of the frame (321) are both provided with second positioning holes (323), and the upper ends of the two fixed horizontal platforms (31) facing each other are both provided with assembly plates (312), and the middle part of the assembly plate (312) is provided with a first fixing bolt matching the first positioning hole (322). (313), the front and rear sides of the assembly plate (312) are both provided with second fixing bolts (314) matching the second positioning holes (323), the front side of the second fixing bolts (314) are provided with a first guide block (315), the first guide block (315) includes a first transverse plate (3151) and a first inclined platform (3152), the first transverse plate (3151) and the first inclined platform (3152) are integrally formed, the first transverse plate (3151) extends toward the front side of the frame (321), the front side of the second fixing bolts (314) are rotatably connected to the first transverse plate (3151), the first inclined platform (3152) is inclined from top to bottom from the edge of the frame (321) to the middle of the frame (321), the first inclined platform (3152) ) is in contact with the front side of the frame (321); the second fixing bolt (314) at the rear side is provided with a second guide block (316); the second guide block (316) includes a second transverse plate (3161) and a second inclined platform (3162); the second transverse plate (3161) and the second inclined platform (3162) are integrally formed; the second transverse plate (3161) extends toward the rear side of the frame (321); the second fixing bolt (314) at the rear side is rotatably connected with the second transverse plate (3161); the second inclined platform (3162) is inclined from top to bottom from the edge of the frame (321) to the middle of the frame (321); the rear side of the second inclined platform (3162) is in contact with the rear side of the frame (321); the front and rear sides of the fixed transverse platform (31) at the left end are A motor (33) is provided on each side, and the two motors (33) are provided with a screw (331). The two screws (331) are respectively rotatably connected to the two fixed horizontal platforms (31). A positioning rod (34) is provided between the front and rear sides of the two fixed horizontal platforms (31). The front and rear sides of the two fixed horizontal platforms (31) are provided with a collecting groove (35). The collecting groove (35) is provided with an opening (351). One end of the opening (351) is provided with a movable plate (352) threadedly rotatably connected to the screw (331). The movable plate (352) is also provided with a positioning hole (3521) matching the positioning rod (34). The movable plate (352) is elastically connected with a scraper (3522). When the scraper contacts the first inclined platform and the second inclined platform,The scraper can be flexibly retracted into the movable plate, and a switch cover (353) is provided at the bottom of the collecting tank (35).

2. The SMT solder paste printer cleaning device with anti-caking function according to claim 1, characterized in that: The front side movable plate (352) is provided with first stoppers (354) matching the front side of the frame (321) at both left and right ends of the front side, and a first assembly groove (317) matching the first stoppers (354) is provided on one side facing the front end of the fixed horizontal platform (31). The rear side movable plate (352) is provided with second stoppers (355) matching the rear side of the frame (321) at both left and right ends of the rear side, and a second assembly groove (318) matching the second stoppers (355) is provided on one side facing the rear end of the fixed horizontal platform (31).

3. The SMT solder paste printer cleaning device with anti-caking function according to claim 1, characterized in that: A first limiting mechanism is also provided between the first guide block (315) and the fixed horizontal platform (31), the first limiting mechanism comprising a first limiting slide block (41) provided on the first guide block (315) and a first limiting slide groove (42) provided on the fixed horizontal platform (31), the first limiting slide block (41) matching the first limiting slide groove (42).

4. The SMT solder paste printer cleaning device with anti-caking function according to claim 1, characterized in that: A second limiting mechanism is also provided between the second guide block (316) and the fixed horizontal platform (31), the second limiting mechanism comprising a second limiting slide block (43) provided on the second guide block (316) and a second limiting slide groove (44) provided on the fixed horizontal platform (31), the second limiting slide block (43) matching the second limiting slide groove (44).

5. The SMT solder paste printer cleaning device with anti-caking function according to claim 1, characterized in that: An empty slot (3523) is provided inside the movable plate (352), and a plurality of return springs (3524) are connected between the empty slot (3523) and the scraper plate (3522).

6. The SMT solder paste printer cleaning device with anti-caking function according to claim 1, characterized in that: The switch cover (353) is provided with a switch handle (3531).

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