Automatic cleaning and ink feeding equipment for silk screen plate of PCB board

Abstract

The present application relates to the technical field of silk screen processing equipment for silk screen plate for PCB, in particular to an automatic cleaning and ink feeding equipment for silk screen plate for PCB, when in use, the screen plate is conveyed to the lower side of the screen plate clamping mechanism by the screen plate reciprocating conveying mechanism and the carrier, then the screen plate is clamped and lifted by the lifting driving mechanism and the screen plate clamping mechanism, after the screen plate is wiped by the multi-axis robot and the non-woven fabric wiping mechanism, the multi-axis robot is clamped and turned over with the barrel clamping mechanism to feed ink to the screen plate, so as to realize the mechanical operation of wiping the screen plate by the non-woven fabric and feeding ink to the screen plate, which is beneficial to save labor and improve processing efficiency; when the non-woven fabric of the non-woven fabric wiping mechanism and the ink of the ink barrel need to be fed, the feeding driving mechanism conveys the non-woven fabric wiping mechanism and the ink barrel to the feeding end, so that the non-woven fabric and the ink can be replaced more easily by manual operation.

Description

Technical Field

[0001] The present invention relates to the technical field of silk screen processing equipment for silk screen stencils used in PCB boards, and in particular to automatic cleaning and ink application equipment for silk screen stencils used in PCB boards. Background Art

[0002] PCB printing, also known as circuit board printing, is a burgeoning new industry. The rapid development of screen printing has invigorated this sector, bringing significant changes to the electronics industry. Current screen printing processes are fully capable of adapting to high-density PCB production. The screen is the most critical component in screen printing, crucial for controlling ink flow and print thickness, and also determining screen durability. Furthermore, excellent bonding between the screen and the photosensitive material is crucial for producing high-quality, high-precision screens. To ensure a perfect bond between the screen and the photosensitive material, new screens are traditionally roughened and degreased to ensure quality and extend their lifespan.

[0003] After using a screen printing stencil for a PCB, the ink on the screen surface must be removed so that it can be re-printed. Existing methods for removing and re-printing screen ink often involve manually wiping the screen with multiple sheets of non-woven fabric and then manually pouring ink onto the screen, which is labor-intensive and inefficient. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide an automatic cleaning and inking device for a silk screen printing screen for a PCB board.

[0005] The objectives of the present invention are achieved through the following technical solutions: an automatic cleaning and inking device for a silk screen printing stencil for a PCB board, comprising a working frame, a multi-axis robot arranged adjacent to the working frame, a loading and unloading drive mechanism arranged adjacent to the working frame, a stencil reciprocating conveying mechanism connected to the working frame, a carrier connected to the output end of the stencil reciprocating conveying mechanism, a lifting drive mechanism connected to the working frame and away from the loading and unloading end of the stencil reciprocating conveying mechanism, a stencil clamping mechanism connected to the output end of the lifting drive mechanism, an ink barrel positioned at the output end of the loading and unloading drive mechanism, a non-woven fabric wiping mechanism positioned at the output end of the loading and unloading drive mechanism, and a barrel clamping mechanism positioned at the output end of the loading and unloading drive mechanism;

[0006] The screen reciprocating conveying mechanism and the carrier are used to reciprocate the screen, the lifting drive mechanism and the screen clamping mechanism are used to clamp and drive the screen to lift and lower, the multi-axis robot is used to cooperate with the non-woven fabric wiping mechanism to wipe the screen, and to cooperate with the barrel clamping mechanism to clamp and flip the ink barrel to apply ink on the screen, and the loading and unloading drive mechanism is used to transport the non-woven fabric wiping mechanism and the ink barrel back and forth.

[0007] Preferably, the output end of the multi-axis robot is fixedly connected to an R-side robot quick-change disk, the non-woven fabric wiping mechanism is fixedly connected to a first T-side robot quick-change disk that is quickly connected to the R-side robot quick-change disk, and the barrel clamping mechanism is fixedly connected to a second T-side robot quick-change disk that is quickly connected to the R-side robot quick-change disk.

[0008] Preferably, the non-woven fabric wiping mechanism includes a stand, a driving transmission mechanism fixedly connected to the stand, a material roll pressing roller assembly fixedly connected to the stand, and a non-woven fabric unwinding roller, a first guide roller, a length measuring roller, a second guide roller, a lifting and wiping assembly and a non-woven fabric winding roller arranged in sequence along the conveying direction of the non-woven fabric. The non-woven fabric unwinding roller, the first guide roller, the length measuring roller, the second guide roller and the non-woven fabric winding roller are all rotatably connected to one side of the stand, the driving transmission mechanism is transmission-connected to the first guide roller and is used to drive the length measuring roller to rotate and drive the non-woven fabric winding roller to rotate, the material roll pressing roller assembly is used to press the non-woven fabric on the length measuring roller, the lifting and wiping assembly is fixedly connected to the stand and is used to press down the non-woven fabric, and the first T-side robot quick-change disk is fixedly connected to the other side of the stand.

[0009] Preferably, a first annular transmission groove is provided on the side of the length measuring roller close to the stand, and a second annular transmission groove is provided on the side of the non-woven fabric winding roller close to the stand, and the driving transmission mechanism includes a motor frame connected to the other side of the stand, a driving motor fixedly connected to the motor frame, and a transmission belt sleeved between the first annular transmission groove and the second annular transmission groove, the output end of the driving motor is connected to the length measuring roller, and the transmission belt is used for transmission between the length measuring roller and the non-woven fabric winding roller; the material roll pressing roller assembly includes a first cylinder fixedly connected to the bottom of the stand, a first roller frame connected to the output end of the first cylinder, and a pressing roller rotatably connected to the first roller frame and arranged adjacent to the length measuring roller, and the pressing roller cooperates with the length measuring roller to press the non-woven fabric.

[0010] Preferably, the lifting and wiping assembly includes a second cylinder fixedly connected to the other side of the vertical frame, a support plate fixedly connected to the output end of the second cylinder, a second roller frame fixedly connected to the bottom of the support plate, a third guide roller rotatably connected to the side of the second roller frame away from the second guide roller, a clamping plate connected to the side of the second roller frame close to the second guide roller, and a spray plate clamped between the clamping plate and the second roller frame, the second guide roller, the second roller frame, the third guide roller and the non-woven fabric winding roller are arranged in sequence along the conveying direction of the non-woven fabric, and a plurality of spray holes distributed at intervals and connected to each other are opened at the bottom of the spray plate, the side wall of the spray plate is connected to a liquid inlet interface connected to the spray holes, and the bottom surface of the spray plate is a wiping plane.

[0011] Preferably, the barrel clamping mechanism includes an I-type connecting column, a first cylinder seat connected to the bottom of the I-type connecting column, a pneumatic finger connected to the first cylinder seat, and two clamping claws connected to the two finger ends of the pneumatic fingers respectively, and the second T-side robot quick change plate is fixedly connected to the top of the I-type connecting column; the outer wall fixed sleeve of the ink barrel is provided with two spaced apart limit rings, and when the two clamping claws are clamped on the outer wall of the ink barrel, the two clamping claws are located between the two limit rings.

[0012] Preferably, the loading and unloading drive mechanism includes a loading and unloading workbench, a Y-axis linear module connected to the loading and unloading workbench, a fixed plate connected to the output end of the Y-axis linear module, and a support frame fixedly connected to one end of the fixed plate, the top surface of the fixed plate protrudes with a first limiting component for cooperating with the ink barrel, the support frame is connected with a second limiting component for cooperating with the non-woven fabric wiping mechanism, and the top of the support frame is connected with a third limiting component for cooperating with the barrel clamping mechanism.

[0013] 18. The ink barrel as claimed in claim 17, wherein the bottom of the ink barrel is provided with a first card slot, the first limiting assembly includes a first card block protruding from the top surface of the fixing plate, and a plurality of second card blocks distributed in an annular manner on the fixing plate, the first card block being used to engage with the first card slot, and the plurality of second card blocks being used together to abut against the outer wall of the ink barrel; the bottom of the stand is provided with a second card slot and a first guide card hole, the second limiting assembly includes a third card block and a first guide column, both of which are connected to the support frame, the third card block being used to engage with the second card slot, and the first guide card hole being used to guide and plug-in engage with the first guide column; the third limiting assembly includes a card plate connected to the top of the support frame, and a card column connected to the top of the card plate, the middle portion of the I-shaped connecting column has an annular groove, the end of the card plate away from the support frame is provided with a U-shaped notch for engaging with the annular groove of the I-shaped connecting column, the top wall of the annular groove of the I-shaped connecting column is provided with a third card slot for engaging with the card column, and the sum of the height of the card plate and the height of the card column is less than the height of the annular groove.

[0014] Preferably, the working frame includes four first legs, a plurality of first beams connected to two adjacent first legs, and a first frame plate connected to the first beam, the lifting drive mechanism includes a plurality of first seat bearings connected to the first frame plate, a plurality of second seat bearings connected to the first frame plate, a servo reduction motor connected to the first frame plate, a driving gear connected to the output end of the servo reduction motor, a driven gear meshed with the driving gear, a first transmission shaft fixedly connected to the driven gear and fixedly connected to the inner ring of the bearing of the first seat bearing, and a first transmission shaft fixedly connected to both ends of the first transmission shaft. The first bevel gear connected to the first bevel gear, the second bevel gear meshing with the first bevel gear, the second transmission shaft fixedly connected to the second bevel gear and fixedly connected to the inner ring of the second seat bearing, the first transmission gear fixedly connected to the end of the second transmission shaft, the first linear bearing fixedly connected to the inside of the first tripod, the lifting rack connected to the inner ring of the first linear bearing and movably extended into the inside of the first tripod, and the top support plate fixedly connected to the top end of the lifting rack, the first tripod is provided with a makeshift slot for the first transmission gear to extend into and mesh with the lifting rack, and the top support plate is fixedly connected to the mesh plate clamping mechanism.

[0015] The beneficial effects of the present invention are as follows: the automatic cleaning and inking equipment for the silk screen printing stencil for PCB board of the present invention adopts a working frame, a multi-axis robot arranged adjacent to the working frame, a loading and unloading driving mechanism arranged adjacent to the working frame, a stencil reciprocating conveying mechanism connected to the working frame, a carrier connected to the output end of the stencil reciprocating conveying mechanism, a lifting driving mechanism connected to the working frame and away from the loading and unloading end of the stencil reciprocating conveying mechanism, a stencil clamping mechanism connected to the output end of the lifting driving mechanism, an ink barrel limitedly placed at the output end of the loading and unloading driving mechanism, a non-woven fabric wiping mechanism limitedly placed at the output end of the loading and unloading driving mechanism, and a barrel clamping mechanism limitedly placed at the output end of the loading and unloading driving mechanism; when in use, the stencil is placed on the carrier, and the stencil is transported by the stencil reciprocating conveying mechanism To the bottom of the screen clamping mechanism, the lifting drive mechanism and the screen clamping mechanism cooperate to clamp and drive the screen to lift and lower. After the multi-axis robot cooperates with the non-woven fabric wiping mechanism to wipe the screen, the multi-axis robot cooperates with the barrel clamping mechanism to clamp and flip the ink barrel to ink on the screen, and then the lifting drive mechanism and the screen clamping mechanism cooperate to put the screen back into the carrier, and the screen reciprocating conveying mechanism outputs the screen away from the screen clamping mechanism so that the next screen can be replaced and continued processing, thereby realizing the mechanized operation of wiping the screen printing screen and the ink on the screen with non-woven fabric, which is beneficial to saving labor and improving processing efficiency. When the non-woven fabric / ink barrel of the non-woven fabric wiping mechanism needs to be loaded and unloaded, the loading and unloading drive mechanism transports the non-woven fabric wiping mechanism and the ink barrel to the loading and unloading end, so that it is easier for humans to change the non-woven fabric / ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic structural diagram of the non-woven fabric wiping mechanism with non-woven fabric of the present invention;

[0018] Figure 3 Schematic diagram of the structure of the non-woven fabric wiping mechanism of the present invention;

[0019] Figure 4 is a structural schematic diagram of the non-woven fabric wiping mechanism of the present invention from another perspective;

[0020] Figure 5 It is a structural schematic diagram of the loading and unloading drive mechanism of the present invention;

[0021] Figure 6 It is a structural schematic diagram of the non-woven fabric wiping mechanism, the barrel clamping mechanism and the ink barrel of the present invention;

[0022] Figure 7 It is a structural schematic diagram of the working frame and the lifting drive mechanism of the present invention;

[0023] Figure 8 It is an exploded partial schematic diagram of the working frame and the lifting drive mechanism of the present invention.

[0024] The accompanying drawings are:

[0025] 1. Multi-axis robot;

[0026] 2. Screen reciprocating conveying mechanism;

[0027] 3. Vehicle;

[0028] 4. Working frame; 41. First leg frame; 42. First crossbeam; 43. First frame plate;

[0029] 5. Loading and unloading drive mechanism; 51. Loading and unloading workbench; 52. Y-axis linear module; 53. Fixed plate; 54. Support frame;

[0030] 6. Lifting drive mechanism; 61. First bearing block; 62. Second bearing block; 63. Servo reduction motor; 64. Driving gear; 65. Driven gear; 66. First transmission shaft; 67. First bevel gear; 68. Second bevel gear; 69. First transmission gear; 610. First linear bearing; 611. Lifting rack; 612. Top support plate; 613. Second transmission shaft;

[0031] 7. Screen clamping mechanism;

[0032] 8. Non-woven fabric wiping mechanism; 81. Stand; 82. Drive transmission mechanism; 821. Motor frame; 822. Drive motor; 823. Drive belt; 83. Material roll pressing roller assembly; 831. First cylinder; 832. First roller frame; 833. Material pressing roller; 84. Non-woven fabric unwinding roller; 85. First guide roller; 86. Length measuring roller; 87. Second guide roller; 88. Lifting and wiping assembly; 881. Second cylinder; 882. Support plate; 883. Second roller frame; 884. Third guide roller; 885. Clamping plate; 886. Spray plate; 89. Non-woven fabric winding roller; 810. Spray gun;

[0033] 9. Barrel clamping mechanism; 91. I-type connecting column; 92. First cylinder seat; 93. Pneumatic finger; 94. Clamping claw;

[0034] 10. Ink barrel;

[0035] 11. R side robot quick change plate;

[0036] 12. First T-side robot quick change plate;

[0037] 13. Second T-side robot quick change plate;

[0038] 14. First annular transmission groove;

[0039] 15. Second annular transmission groove;

[0040] 16. Spray hole;

[0041] 17. Liquid inlet interface;

[0042] 18. Limiting ring;

[0043] 19. First limit assembly; 191. First clamping block; 192. Second clamping block;

[0044] 20. Second limit assembly; 201. Third clamping block; 202. First guide column;

[0045] 21. Third limit assembly; 211. Clamping plate; 212. Clamping column;

[0046] 22. First card slot;

[0047] 23. Second card slot;

[0048] 24. First guide hole;

[0049] 25. Annular groove;

[0050] 26. U-shaped notch;

[0051] 27. Third card slot;

[0052] 28. Give way slot. DETAILED DESCRIPTION

[0053] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0054] like Figure 1-8 As shown, an automatic cleaning and inking device for a silk screen printing stencil for a PCB board includes a working frame 4, a multi-axis robot 1 disposed adjacent to the working frame 4, a loading and unloading drive mechanism 5 disposed adjacent to the working frame 4, a stencil reciprocating conveying mechanism 2 connected to the working frame 4, a carrier 3 connected to the output end of the stencil reciprocating conveying mechanism 2, a lifting drive mechanism 6 connected to the working frame 4 and away from the loading and unloading end of the stencil reciprocating conveying mechanism 2, a stencil clamping mechanism 7 connected to the output end of the lifting drive mechanism 6, an ink bucket 10 position-limitedly placed at the output end of the loading and unloading drive mechanism 5, a non-woven fabric wiping mechanism 8 position-limitedly placed at the output end of the loading and unloading drive mechanism 5, and a bucket clamping mechanism 9 position-limitedly placed at the output end of the loading and unloading drive mechanism 5;

[0055] The screen reciprocating conveying mechanism 2 and the carrier 3 are used to reciprocate the screen, the lifting drive mechanism 6 and the screen clamping mechanism 7 are used to clamp and drive the screen to lift and lower, the multi-axis robot 1 is used to cooperate with the non-woven fabric wiping mechanism 8 to wipe the screen, and to cooperate with the barrel clamping mechanism 9 to clamp and flip the ink barrel 10 to apply ink on the screen, and the loading and unloading drive mechanism 5 is used to transport the non-woven fabric wiping mechanism 8 and the ink barrel 10 back and forth.

[0056] When the automatic cleaning and inking device for the PCB screen printing stencil is used, the stencil is placed on the carrier 3, and the stencil is transported to the bottom of the stencil clamping mechanism 7 by the stencil reciprocating conveying mechanism 2, and then the lifting drive mechanism 6 and the stencil clamping mechanism 7 cooperate to clamp and drive the stencil to rise and fall, and after the stencil is wiped by the multi-axis robot 1 in cooperation with the non-woven fabric wiping mechanism 8, the multi-axis robot 1 cooperates with the clamping barrel mechanism 9 to clamp and flip the ink barrel 10 to apply ink to the stencil, and then the lifting drive mechanism 6 and the stencil clamping mechanism 7 cooperate to The stencil is returned to the carrier 3, and the stencil reciprocating conveying mechanism 2 transports the stencil away from the stencil clamping mechanism 7 so that the next stencil can be replaced and processed. This achieves the mechanized operation of wiping the silk screen stencil with non-woven fabric and applying ink to the stencil, saving labor and improving processing efficiency. When the non-woven fabric / ink barrel 10 of the non-woven fabric wiping mechanism 8 needs to be loaded or unloaded, the loading and unloading drive mechanism 5 transports the non-woven fabric wiping mechanism 8 and ink barrel 10 to the loading and unloading end, making it easier for humans to replace the non-woven fabric / ink. In addition, the stencil reciprocating conveying mechanism 2 is a synchronous belt linear module, and the stencil clamping mechanism 7 is a cylinder clamping mechanism. Both of the above are prior art and will not be described in detail here.

[0057] Further, the output end of the multi-axis robot 1 is fixedly connected with an R-side robot quick-change disc 11, the non-woven fabric wiping mechanism 8 is fixedly connected with a first T-side robot quick-change disc 12 which is quickly connected with the R-side robot quick-change disc 11, and the barrel clamping mechanism 9 is fixedly connected with a second T-side robot quick-change disc 13 which is quickly connected with the R-side robot quick-change disc 11, so that the multi-axis robot 1 can be quickly used between the non-woven fabric wiping mechanism 8 and the barrel clamping mechanism 9; in addition, the multi-axis robot 1 is a six-axis robot, which belongs to the prior art and will not be described here.

[0058] Further, the non-woven fabric wiping mechanism 8 comprises a stand 81, a driving transmission mechanism 82 fixedly connected with the stand 81, a roll material pressing roller assembly 83 fixedly connected with the stand 81, and a non-woven fabric unwinding roller 84, a first guide roller 85, a length measuring roller 86, a second guide roller 87, a lifting wiping assembly 88 and a non-woven fabric winding roller 89 which are sequentially arranged along the conveying direction of the non-woven fabric, wherein the non-woven fabric unwinding roller 84, the first guide roller 85, the length measuring roller 86, the second guide roller 87 and the non-woven fabric winding roller 89 are all rotationally connected to one side of the stand 81, the driving transmission mechanism 82 is in transmission connection with the first guide roller 85 and is used to drive the length measuring roller 86 to rotate and drive the non-woven fabric winding roller 89 to rotate, the roll material pressing roller assembly 83 is used to press the non-woven fabric of the length measuring roller 86, the lifting wiping assembly 88 is fixedly connected with the stand 81 and is used to press the non-woven fabric, and the first T-side robot quick-change disc 12 is fixedly connected to the other side of the stand 81. When the non-woven fabric wiping mechanism 8 is used to wipe the silk screen plate, the lifting wiping assembly 88 presses the non-woven fabric to make the non-woven fabric contact with the silk screen plate, then under the action of the driving transmission mechanism 82, the length measuring roller 86 and the non-woven fabric winding roller 89 rotate to drive the non-woven fabric to be conveyed along the non-woven fabric unwinding roller 84, the first guide roller 85, the length measuring roller 86, the second guide roller 87, the lifting wiping assembly 88 and the non-woven fabric winding roller 89 in sequence, thereby realizing the mechanized operation of wiping the silk screen plate with the non-woven fabric, saving labor and being conducive to improving efficiency; in addition, the roll material pressing roller assembly 83 presses the non-woven fabric of the length measuring roller 86 so as to keep the non-woven fabric stable during conveying.

[0059] Furthermore, a first annular transmission groove 14 is provided on the side of the length measuring roller 86 close to the vertical frame 81, and a second annular transmission groove 15 is provided on the side of the non-woven fabric winding roller 89 close to the vertical frame 81. The driving transmission mechanism 82 includes a motor frame 821 connected to the other side of the vertical frame 81, a driving motor 822 fixedly connected to the motor frame 821, and a transmission belt 823 arranged between the first annular transmission groove 14 and the second annular transmission groove 15. The output end of the driving motor 822 is transmission-connected to the length measuring roller 86, and the transmission belt 823 is used for transmission between the length measuring roller 86 and the non-woven fabric winding roller 89; the material roll pressing roller assembly 83 includes a first cylinder 831 fixedly connected to the bottom of the vertical frame 81, a first roller frame 832 connected to the output end of the first cylinder 831, and a pressing roller 833 rotatably connected to the first roller frame 832 and arranged adjacent to the length measuring roller 86. The pressing roller 833 cooperates with the length measuring roller 86 to press the non-woven fabric. When in use, the first cylinder 831 drives the first roller frame 832 and drives the pressing roller to press against the length measuring roller 86, so that the non-woven fabric conveying process between the pressing roller and the length measuring roller 86 remains stable.

[0060] Furthermore, the lifting and wiping assembly 88 includes a second cylinder 881 fixedly connected to the other side of the vertical frame 81, a support plate 882 fixedly connected to the output end of the second cylinder 881, a second roller frame 883 fixedly connected to the bottom of the support plate 882, a third guide roller 884 rotatably connected to the side of the second roller frame 883 away from the second guide roller 87, a clamping plate 885 connected to the side of the second roller frame 883 close to the second guide roller 87, and a spray plate 886 clamped between the clamping plate 885 and the second roller frame 883, the second guide roller 87, the second roller frame 883, the third guide roller 884 and the non-woven fabric winding roller 89 are arranged in sequence along the conveying direction of the non-woven fabric, and a plurality of spray holes 16 distributed at intervals and connected to each other are opened at the bottom of the spray plate 886, the side wall of the spray plate 886 is connected to the liquid inlet interface 17 connected to the spray holes 16, and the bottom surface of the spray plate 886 is a wiping plane. In order to wipe the silk screen ink clean, the non-woven fabric usually needs to be immersed in liquids such as alcohol for assistance. In this embodiment, alcohol can be introduced through the liquid inlet interface 17 and sprayed onto the non-woven fabric through the spray hole 16 of the spray plate 886. The bottom surface of the spray plate 886 is a wiping plane, which is also beneficial to improve the wiping effect.

[0061] Furthermore, the non-woven fabric wiping mechanism 8 also includes a liquid spray gun 810 fixedly connected to the other side of the stand 81. The liquid spray gun 810 is used to spray liquid onto the silk screen. For stubborn ink on the silk screen, the liquid spray gun 810 can be used to spray alcohol lamp liquid onto the silk screen in advance, which is beneficial to improve the wiping effect.

[0062] Furthermore, the barrel clamping mechanism 9 includes an I-type connecting column 91, a first cylinder 831 seat connected to the bottom of the I-type connecting column 91, a pneumatic finger 93 connected to the first cylinder 831 seat, and two clamps 94 respectively connected to the two finger ends of the pneumatic finger 93. The second T-side robot quick-change disk 13 is fixedly connected to the top of the I-type connecting column 91; the outer wall of the ink barrel 10 is fixedly sleeved with two spaced limit rings 18. When the two clamps 94 are clamped on the outer wall of the ink barrel 10, the two clamps 94 are located between the two limit rings 18, which is beneficial to prevent the ink barrel 10 from loosening and moving out of position when the clamps 94 are clamped on the ink barrel 10 to pour the material.

[0063] Furthermore, the loading and unloading drive mechanism 5 includes a loading and unloading workbench 51, a Y-axial linear module 52 connected to the loading and unloading workbench 51, a fixed plate 53 connected to the output end of the Y-axial linear module 52, and a support frame 54 fixedly connected to one end of the fixed plate 53. The top surface of the fixed plate 53 protrudes with a first limiting component 19 for limiting cooperation with the ink barrel 10, the support frame 54 is connected with a second limiting component 20 for limiting cooperation with the non-woven fabric wiping mechanism 8, and the top of the support frame 54 is connected with a third limiting component 21 for limiting cooperation with the barrel clamping mechanism 9. The first limiting component 19 is used to limit the ink barrel 10, the second limiting component 20 is used to limit the non-woven fabric wiping mechanism 8, and the third limiting component 21 is used to limit the barrel clamping mechanism 9 to prevent the ink barrel 10 from tipping over and overflowing during the round-trip transportation process, thereby affecting the normal operation of the entire equipment, and also to prevent the non-woven fabric wiping mechanism 8 and the barrel clamping mechanism 9 from tilting and dislocating, thereby affecting their use with the multi-axis robot 1 again.

[0064] Further, the bottom of the ink barrel 10 is provided with a first clamping groove 22, the first limiting assembly 19 includes a first clamping block 191 protruding from the top surface of the fixed plate 53, and a plurality of annularly spaced second clamping blocks 192 distributed on the fixed plate 53, the first clamping block 191 is used for clamping cooperation with the first clamping groove 22, and the plurality of second clamping blocks 192 are used for abutting against the outer side wall of the ink barrel 10 in cooperation; the bottom of the stand 81 is provided with a second clamping groove 23 and a first guide clamping hole 24, the second limiting assembly 20 includes a third clamping block 201 and a first guide column 202 connected to the support frame 54, the third clamping block 201 is used for clamping cooperation with the second clamping groove 23, and the first guide clamping hole 24 is used for guide plug-in cooperation with the first guide column 202; the third limiting assembly 21 includes a clamping plate 211 connected to the top of the support frame 54, and a clamping column 212 connected to the top of the clamping plate 211, the middle of the I-shaped connecting column 91 has an annular groove 25, the end of the clamping plate 211 away from the support frame 54 is provided with a U-shaped slot 26 used for clamping cooperation with the annular groove 25 of the I-shaped connecting column 91, and the top wall of the annular groove 25 of the I-shaped connecting column 91 is provided with a third clamping groove 27 used for clamping cooperation with the clamping column 212, and the sum of the height of the clamping plate 211 and the height of the clamping column 212 is less than the height of the annular groove 25.

[0065] By adopting the above technical scheme, the first clamping block 191 and the plurality of second clamping blocks 192 jointly avoid the ink barrel 10 from being tilted and overflowing during the back-and-forth conveying process, thereby affecting the normal operation of the whole equipment, and are beneficial to positioning the specified ink barrel 10 on the fixed plate 53, thereby facilitating the multi-axis robot 1 to cooperate with the barrel clamping mechanism 9 to clamp and take the ink barrel 10 for use. Preferably, the number of the second clamping blocks 192 is three, and the second clamping block 192 abutting against one side of the ink barrel 10 is an arc surface, which is more beneficial to the abutment against the outer side wall of the ink barrel 10;

[0066] The first guide clamping hole 24 and the first guide column 202 are in guide plug-in cooperation, which is beneficial to the quick positioning of the fixing frame on the support frame 54; and the third clamping block 201 and the second clamping groove 23 are in clamping cooperation, which is beneficial to the positioning of the non-woven fabric wiping mechanism 8 on the support frame 54, thereby facilitating the quick connection and cooperation for use of the output end of the multi-axis robot 1 and the first T-side robot quick-change disc 12, and on the other hand, avoids the non-woven fabric wiping mechanism 8 from being tilted and dislocated during the back-and-forth conveying process, thereby affecting the cooperation for use of the non-woven fabric wiping mechanism 8 with the multi-axis robot 1 again;

[0067] The U-shaped notch 26 of the card plate 211 is engaged with the annular groove 25 of the I-type connecting column 91 to prevent the barrel clamping mechanism 9 from tilting and dislocating, which affects its use with the multi-axis robot 1 again. The clamping column 212 is engaged with the third clamping groove 27 and the sum of the height of the card plate 211 and the height of the card column 212 is less than the height of the annular groove 25, which is more conducive to preventing the barrel clamping mechanism 9 from tilting and dislocating, which affects its use with the multi-axis robot 1 again, and is conducive to positioning the barrel clamping mechanism 9 on the card plate 211, so as to facilitate the quick connection and use of the output end of the multi-axis robot 1 with the second T-side robot quick change disk 13.

[0068] Furthermore, the working frame 4 includes four first tripods 41, a plurality of first beams 42 connected to two adjacent first tripods 41, and a first frame plate 43 connected to the first beam 42. The lifting drive mechanism 6 includes a plurality of first seat bearings 61 connected to the first frame plate 43, a plurality of second seat bearings 62 connected to the first frame plate 43, a servo reduction motor 63 connected to the first frame plate 43, a driving gear 64 connected to the output end of the servo reduction motor 63, a driven gear 65 meshing with the driving gear 64, a first transmission shaft 66 fixedly connected to the driven gear 65 and fixedly connected to the inner ring of the bearing of the first seat bearing 61, and a first cone fixedly connected to both ends of the first transmission shaft 66. Gear 67, a second bevel gear 68 meshing with the first bevel gear 67, a second transmission shaft 613 fixedly connected to the second bevel gear 68 and fixedly connected to the inner ring of the bearing of the second seat bearing 62, a first transmission gear 69 fixedly connected to the end of the second transmission shaft 613, a first linear bearing 610 fixedly connected to the inside of the first tripod 41, a lifting rack 611 connected to the inner ring of the first linear bearing 610 and movably extended into the inside of the first tripod 41, and a top support plate 612 fixedly connected to the top end of the lifting rack 611, the first tripod 41 is provided with a makeshift slot 28 for the first transmission gear 69 to extend into and mesh with the lifting rack 611, and the top support plate 612 is fixedly connected to the mesh clamping mechanism 7. During use, the servo reduction motor 63 drives the driving gear 64 to rotate, and the driving gear 64, the driven gear 65, the first transmission shaft 66, the first bevel gear 67, the second bevel gear 68, the second transmission shaft 613 and the first transmission gear 69 are sequentially driven and rotated, and the first transmission gear 69 drives the lifting rack 611 and the top support plate 612 to rise and fall, thereby driving the lifting movement of the mesh clamping mechanism 7. In this embodiment, the four first legs 41 all have a first linear bearing 610, a lifting rack 611 and a top support plate 612, both ends of the first transmission shaft 66 have a first bevel gear 67, both the second transmission shaft 613 and the second bevel gear 68 have two, and both ends of the second transmission shaft 613 have a first transmission gear 69, and the first transmission gear 69 is meshed with the lifting rack 611 in a one-to-one correspondence so as to simultaneously enable the four top support plates 612 to support the lifting and lowering of the mesh clamping mechanism 7.

[0069] The above embodiments are the preferred implementation of the present application, and in addition thereto, the present application can be implemented in other manners, and any obvious replacements without departing from the concept of the present application are within the protection scope of the present application.

Claims

1. An automatic cleaning and inking device for a screen printing stencil for a PCB board, characterized by: The machine comprises a working frame, a multi-axis robot arranged adjacent to the working frame, a loading and unloading driving mechanism arranged adjacent to the working frame, a screen reciprocating conveying mechanism connected to the working frame, a carrier connected to the output end of the screen reciprocating conveying mechanism, a lifting driving mechanism connected to the working frame and away from the loading and unloading end of the screen reciprocating conveying mechanism, a screen clamping mechanism connected to the output end of the lifting driving mechanism, an ink barrel limitedly placed at the output end of the loading and unloading driving mechanism, a non-woven fabric wiping mechanism limitedly placed at the output end of the loading and unloading driving mechanism, and a barrel clamping mechanism limitedly placed at the output end of the loading and unloading driving mechanism; The mesh reciprocating conveying mechanism and the carrier cooperate to reciprocate the mesh, the lifting drive mechanism and the mesh clamping mechanism cooperate to clamp and drive the mesh to lift and lower, the multi-axis robot cooperates with the non-woven fabric wiping mechanism to wipe the mesh, and cooperates with the barrel clamping mechanism to clamp and flip the ink barrel to apply ink on the mesh, and the loading and unloading drive mechanism is used to transport the non-woven fabric wiping mechanism and the ink barrel back and forth; The output end of the multi-axis robot is fixedly connected to an R-side robot quick-change disk, the non-woven fabric wiping mechanism is fixedly connected to a first T-side robot quick-change disk that is quickly connected to the R-side robot quick-change disk, and the barrel clamping mechanism is fixedly connected to a second T-side robot quick-change disk that is quickly connected to the R-side robot quick-change disk; The non-woven fabric wiping mechanism includes a stand, a driving transmission mechanism fixedly connected to the stand, a material roll pressing roller assembly fixedly connected to the stand, and a non-woven fabric unwinding roller, a first guide roller, a length measuring roller, a second guide roller, a lifting and wiping assembly and a non-woven fabric winding roller arranged in sequence along the conveying direction of the non-woven fabric, the non-woven fabric unwinding roller, the first guide roller, the length measuring roller, the second guide roller and the non-woven fabric winding roller are all rotatably connected to one side of the stand, the driving transmission mechanism is transmission-connected to the first guide roller and is used to drive the length measuring roller to rotate and drive the non-woven fabric winding roller to rotate, the material roll pressing roller assembly is used to press the non-woven fabric on the length measuring roller, the lifting and wiping assembly is fixedly connected to the stand and is used to press down the non-woven fabric, and the first T-side robot quick-change disk is fixedly connected to the other side of the stand; The lifting and wiping assembly includes a second cylinder fixedly connected to the other side of the vertical frame, a support plate fixedly connected to the output end of the second cylinder, a second roller frame fixedly connected to the bottom of the support plate, a third guide roller rotatably connected to the side of the second roller frame away from the second guide roller, a clamping plate connected to the side of the second roller frame close to the second guide roller, and a spray plate clamped between the clamping plate and the second roller frame. The second guide roller, the second roller frame, the third guide roller and the non-woven fabric winding roller are arranged in sequence along the conveying direction of the non-woven fabric. A plurality of spray holes distributed at intervals and connected to each other are opened at the bottom of the spray plate. The side wall of the spray plate is connected to a liquid inlet interface connected to the spray holes. The bottom surface of the spray plate is a wiping plane.

2. The automatic cleaning and inking device for a screen printing stencil for a PCB according to claim 1, characterized in that: A first annular transmission groove is provided on the side of the length measuring roller close to the stand, and a second annular transmission groove is provided on the side of the non-woven fabric winding roller close to the stand. The driving transmission mechanism includes a motor frame connected to the other side of the stand, a driving motor fixedly connected to the motor frame, and a transmission belt sleeved between the first annular transmission groove and the second annular transmission groove. The output end of the driving motor is connected to the length measuring roller, and the transmission belt is used for transmission between the length measuring roller and the non-woven fabric winding roller; the material roll pressing roller assembly includes a first cylinder fixedly connected to the bottom of the stand, a first roller frame connected to the output end of the first cylinder, and a pressing roller rotatably connected to the first roller frame and arranged adjacent to the length measuring roller. The pressing roller cooperates with the length measuring roller to press the non-woven fabric.

3. The automatic cleaning and inking device for a screen printing stencil for a PCB board according to claim 1, characterized in that: The barrel clamping mechanism includes an I-type connecting column, a first cylinder seat connected to the bottom of the I-type connecting column, a pneumatic finger connected to the first cylinder seat, and two clamping claws connected to the two finger ends of the pneumatic fingers respectively. The second T-side robot quick change plate is fixedly connected to the top of the I-type connecting column; the outer wall fixed sleeve of the ink barrel is provided with two spaced-apart limit rings. When the two clamping claws are clamped on the outer wall of the ink barrel, the two clamping claws are located between the two limit rings.

4. The automatic cleaning and inking device for a screen printing stencil for a PCB according to claim 3, characterized in that: The loading and unloading drive mechanism includes a loading and unloading workbench, a Y-axis linear module connected to the loading and unloading workbench, a fixed plate connected to the output end of the Y-axis linear module, and a support frame fixedly connected to one end of the fixed plate. The top surface of the fixed plate protrudes with a first limiting component for cooperating with the ink barrel, the support frame is connected with a second limiting component for cooperating with the non-woven fabric wiping mechanism, and the top of the support frame is connected with a third limiting component for cooperating with the barrel clamping mechanism.

5. The automatic cleaning and inking device for a screen printing stencil for a PCB board according to claim 4, characterized in that: The bottom of the ink barrel is provided with a first slot, the first limiting assembly includes a first clamping block protruding from the top surface of the fixing plate, and a plurality of second clamping blocks distributed in an annular interval on the fixing plate, the first clamping block is used to engage with the first clamping slot, and the plurality of second clamping blocks are used together to abut against the outer wall of the ink barrel; the bottom of the stand is provided with a second slot and a first guide slot, the second limiting assembly includes a third clamping block and a first guide column, both of which are connected to the support frame, the third clamping block is used to engage with the second slot, and the first guide slot is used to guide and plug with the first guide column; the third limiting assembly includes a clamping plate connected to the top of the support frame, and a clamping column connected to the top of the clamping plate, the middle portion of the I-shaped connecting column has an annular groove, the end of the clamping plate away from the support frame is provided with a U-shaped notch for engaging with the annular groove of the I-shaped connecting column, the top wall of the annular groove of the I-shaped connecting column is provided with a third clamping groove for engaging with the clamping column, and the sum of the height of the clamping plate and the height of the clamping column is less than the height of the annular groove.

6. The automatic cleaning and inking device for a screen printing stencil for a PCB according to claim 1, characterized in that: The working frame includes four first tripods, a plurality of first beams connected to two adjacent first tripods, and a first frame plate connected to the first beams. The lifting drive mechanism includes a plurality of first seat bearings connected to the first frame plate, a plurality of second seat bearings connected to the first frame plate, a servo reduction motor connected to the first frame plate, a driving gear connected to the output end of the servo reduction motor, a driven gear meshing with the driving gear, a first transmission shaft fixedly connected to the driven gear and fixedly connected to the inner ring of the first seat bearing, and a first transmission shaft fixedly connected to both ends of the first transmission shaft. A first bevel gear, a second bevel gear meshed with the first bevel gear, a second transmission shaft fixedly connected to the second bevel gear and fixedly connected to the inner ring of the second seat bearing, a first transmission gear fixedly connected to the end of the second transmission shaft, a first linear bearing fixedly connected to the inside of the first tripod, a lifting rack connected to the inner ring of the first linear bearing and movably extended into the inside of the first tripod, and a top support plate fixedly connected to the top end of the lifting rack, the first tripod is provided with a makeshift slot for the first transmission gear to extend into and mesh with the lifting rack, and the top support plate is fixedly connected to the mesh plate clamping mechanism.

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