阅读说明：本技术 喷印设备及其喷印工艺方法 (Jet printing equipment and jet printing process method thereof ) 是由 蔡凯杰 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种喷印设备及其喷印工艺方法,包括底座,所述底座的左右两侧设置有支撑座,所述支撑座上设置有纵向传动结构,所述支撑座之间空间作为PCB板运动区域；所述底座上依次设置有定位装置、喷印装置；所述纵向传动结构上设置有平台升降导轨,所述平台升降导轨上设置有平台升降架,所述平台升降架上设置有打印平台；所述平台升降架与所述打印平台之间设置有旋转定位电机；通过采用高度控制实现各组打印平台高度错开运作,可在PCB板需要定位、喷印时提升PCB板到合适高度,而打印平台在中转过程则可以降低高度与需要加工的PCB板错开,这样就可以大大提高工作效率。(The invention discloses a jet printing device and a jet printing process method thereof, wherein the jet printing device comprises a base, wherein supporting seats are arranged on the left side and the right side of the base, a longitudinal transmission structure is arranged on each supporting seat, and a space between the supporting seats is used as a PCB (printed circuit board) moving area; the base is sequentially provided with a positioning device and a jet printing device; a platform lifting guide rail is arranged on the longitudinal transmission structure, a platform lifting frame is arranged on the platform lifting guide rail, and a printing platform is arranged on the platform lifting frame; a rotary positioning motor is arranged between the platform lifting frame and the printing platform; through adopting altitude control to realize each group's print platform highly staggered operation, can promote the PCB board to suitable height when the PCB board needs the location, spouts the seal, and print platform then can reduce the height and stagger with the PCB board that needs processing in the transfer process, just so can improve work efficiency greatly.)

1. An inkjet printing apparatus, characterized in that: the PCB board moving device comprises a base (100), wherein supporting seats (110) are arranged on the left side and the right side of the base (100), a longitudinal transmission structure (200) is arranged on each supporting seat (110), and a space between the supporting seats (110) is used as a PCB board moving area;

the base (100) is sequentially provided with a positioning device (400) and a jet printing device (500);

a platform lifting guide rail (201) is arranged on the longitudinal transmission structure (200), a platform lifting frame (210) is arranged on the platform lifting guide rail (201), and a printing platform (300) is arranged on the platform lifting frame (210);

a rotary positioning motor (310) is arranged between the platform lifting frame (210) and the printing platform (300).

2. The inkjet printing apparatus according to claim 1, wherein: a linear longitudinal stator (111) and a linear longitudinal movable guide rail (112) are arranged on the supporting seat (110);

the longitudinal transmission structure (200) comprises a longitudinal movable frame (220), a longitudinal linear motor rotor (230) and a longitudinal movable sliding block (240), the longitudinal linear motor rotor (230) corresponds to the longitudinal stator (111), and the longitudinal movable sliding block (240) corresponds to the longitudinal movable guide rail (112).

3. The inkjet printing apparatus according to claim 2, wherein: the longitudinal movable frame (220) comprises a movable frame transverse plate (221) and a movable frame vertical plate (222), and the movable frame vertical plate (222) is arranged at the position of one side of the movable frame transverse plate (221) facing the PCB movement area;

the longitudinal stator (111) and the longitudinal movable guide rail (112) are positioned on the lower side of the transverse plate (221) of the movable frame;

the platform lifting guide rail (201) is arranged on the vertical plate (222) of the movable frame.

4. The inkjet printing apparatus according to claim 1, wherein: the platform lifting frame (210) comprises a lifting frame transverse plate (211) and a lifting frame vertical plate (212), and the lifting frame transverse plate (211) is positioned at one side of the lifting frame vertical plate (212) facing the PCB moving area;

a lifting movable sliding block (213) is arranged on the lifting frame vertical plate (212) and corresponds to the platform lifting guide rail (201);

the rotary positioning motor (310) is arranged on the transverse plate (211) of the lifting frame.

5. The inkjet printing apparatus according to claim 1, wherein: the positioning device (400) comprises a positioning device holder (410) and a camera module (420);

a linear transverse stator (411) and a linear transverse guide rail (412) are arranged on the front side of the positioning device bracket (410);

camera module (420) includes camera adjustable shelf (421), camera adjustable shelf (421) front side is provided with camera head (422), camera adjustable shelf (421) rear side is provided with horizontal linear electric motor active cell (423) and horizontal movable slider (424), horizontal linear electric motor active cell (423) with horizontal stator (411) correspond, horizontal movable slider (424) with horizontal guide rail (412) correspond.

6. The inkjet printing apparatus according to claim 1, wherein: the jet printing device (500) comprises a jet printing device support (510), a jet printing trolley (520) is arranged on the jet printing device support (510), and a spray head (521) is arranged on the jet printing trolley (520);

the ink jet printing device is characterized in that an ink sucking and scraping disc module (600) is arranged on the ink jet printing device support (510), and a suction nozzle (601) and an ink scraping sheet (602) are arranged on the ink sucking and scraping disc module (600).

7. The inkjet printing apparatus according to claim 6, wherein: spout seal device support (510) including spouting seal device support stand (511) and spout seal device support crossbeam (512), it is provided with dolly guide rail (513) on spout seal device support crossbeam (512), it sets up to spout seal dolly (520) spout on seal device support crossbeam (512).

8. The inkjet printing apparatus according to claim 7, wherein: spout and be provided with module lift cylinder (514) on seal device support stand (511), be provided with module crane (515) on module lift cylinder (514), inhale scrape ink dish module (600) with module crane (515) are connected.

9. The inkjet printing apparatus according to claim 6, wherein: inhale to scrape and be provided with on ink dish module (600) and scrape ink sheet lift cylinder (610), inclined plane connecting block (620), scrape ink sheet lift cylinder (610) with inclined plane connecting block (620) are connected, be provided with the inclined plane on inclined plane connecting block (620), scrape ink sheet (602) with inclined plane connecting block (620) the inclined plane is connected, scrape ink sheet (602) slant suction nozzle (601).

10. A jet printing process, characterized in that the jet printing equipment according to any one of claims 1 to 9 is adopted, and the process comprises,

s1, lifting the printing platform (300) of the longitudinal transmission structure (200) on one side, placing a PCB (printed Circuit Board) well, and then rotating to adjust the angle;

s2, the printing platform (300) of the longitudinal transmission structure (200) on the other side is in a descending state for standby;

s3, the printing platform (300) with the PCB placed thereon moves forward along with the longitudinal transmission structure (200) and reaches the position of the positioning device (400) to perform positioning operation;

s4, the printing platform (300) with the PCB placed thereon continuously moves forward along with the longitudinal transmission structure (200) to reach the position of the jet printing device (500) for jet printing operation;

s5, the printing platform (300) with the PCB placed thereon continues to advance along with the longitudinal transmission structure (200), and after the printing platform reaches the output side of the jet printing equipment and the PCB is taken away, the printing platform (300) descends;

s6, lifting the printing platform (300) of the longitudinal transmission structure (200) on the other side, placing the PCB, rotating to adjust the angle, and repeating the steps from S2 to S5.

Technical Field

The invention relates to the technical field of PCB (printed circuit board) jet printing, in particular to jet printing equipment and a jet printing process method thereof.

Background

The existing automatic PCB spraying and printing equipment firstly positions a positioning mark on the PCB through a camera device before spraying and printing, and then sprays and prints at a nozzle. This requires that the distance between the PCB and the camera device and nozzle be maintained accurately. However, the height of the camera device and the nozzle is not suitable to be changed frequently, so that the structure and the efficiency of PCB jet printing are limited.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides jet printing equipment and a jet printing process method thereof.

The technical scheme adopted by the invention for solving the technical problems is as follows: the jet printing equipment comprises a base, wherein supporting seats are arranged on the left side and the right side of the base, a longitudinal transmission structure is arranged on each supporting seat, and a space between the supporting seats is used as a PCB (printed circuit board) moving area; the base is sequentially provided with a positioning device and a jet printing device; a platform lifting guide rail is arranged on the longitudinal transmission structure, a platform lifting frame is arranged on the platform lifting guide rail, and a printing platform is arranged on the platform lifting frame; and a rotary positioning motor is arranged between the platform lifting frame and the printing platform.

According to the jet printing equipment provided by the invention, the height staggered operation of each group of printing platforms is realized by adopting height control, the PCB can be lifted to a proper height when the PCB needs to be positioned and jet printed, and the height of the printing platform can be reduced to be staggered with the PCB needing to be processed in the transfer process, so that the working efficiency can be greatly improved.

As some preferred embodiments of the present invention, the support seat is provided with a linear longitudinal stator and a linear longitudinal movable guide rail; the longitudinal transmission structure comprises a longitudinal movable frame, a longitudinal linear motor rotor and a longitudinal movable sliding block, wherein the longitudinal linear motor rotor corresponds to the longitudinal stator, and the longitudinal movable sliding block corresponds to the longitudinal movable guide rail.

As some preferred embodiments of the present invention, the longitudinal movable frame includes a movable frame horizontal plate and a movable frame vertical plate, and the movable frame vertical plate is disposed at a position on one side of the movable frame horizontal plate facing the PCB board movement area; the longitudinal stator and the longitudinal movable guide rail are positioned on the lower side of a transverse plate of the movable frame; the platform lifting guide rail is arranged on the vertical plate of the movable frame.

As some preferred embodiments of the invention, the platform lifting frame comprises a lifting frame transverse plate and a lifting frame vertical plate, wherein the lifting frame transverse plate is positioned at one side position of the lifting frame vertical plate facing to the PCB board movement area; a lifting movable sliding block is arranged on the vertical plate of the lifting frame and corresponds to the platform lifting guide rail; the rotary positioning motor is arranged on the transverse plate of the lifting frame.

As some preferred embodiments of the present invention, the positioning device comprises a positioning device bracket and a camera module; a linear transverse stator and a linear transverse guide rail are arranged on the front side of the positioning device bracket; the camera module comprises a camera movable frame, a camera head is arranged on the front side of the camera movable frame, a transverse linear motor rotor and a transverse movable sliding block are arranged on the rear side of the camera movable frame, the transverse linear motor rotor corresponds to the transverse stator, and the transverse movable sliding block corresponds to the transverse guide rail.

As some preferred embodiments of the present invention, the inkjet printing device includes an inkjet printing device support, the inkjet printing device support is provided with an inkjet printing trolley, and the inkjet printing trolley is provided with a nozzle; the ink jet printing device is characterized in that an ink sucking and scraping disc module is arranged on the ink jet printing device support, and a suction nozzle and an ink scraping sheet are arranged on the ink sucking and scraping disc module.

As some preferred embodiments of the invention, the jet printing device support comprises a jet printing device support upright post and a jet printing device support cross beam, a trolley guide rail is arranged on the jet printing device support cross beam, and the jet printing trolley is arranged on the jet printing device support cross beam.

As some preferred embodiments of the invention, a module lifting cylinder is arranged on the upright column of the support of the jet printing device, a module lifting frame is arranged on the module lifting cylinder, and the ink sucking and scraping disk module is connected with the module lifting frame.

As some preferred embodiments of the present invention, the ink sucking and scraping disk module is provided with an ink scraping plate lifting cylinder and an inclined plane connecting block, the ink scraping plate lifting cylinder is connected to the inclined plane connecting block, the inclined plane connecting block is provided with an inclined plane, the ink scraping plate is connected to the inclined plane of the inclined plane connecting block, and the ink scraping plate is inclined to the suction nozzle.

A jet printing process method adopts the jet printing equipment, and the process comprises the following steps:

s1, lifting the printing platform of the longitudinal transmission structure on one side, placing a PCB (printed Circuit Board) well, and then rotating to adjust the angle;

s2, the printing platform of the longitudinal transmission structure on the other side is in a descending state for standby;

s3, the printing platform with the PCB placed moves forward along with the longitudinal transmission structure, and the printing platform reaches the position of the positioning device to perform positioning operation;

s4, the printing platform with the PCB placed thereon continues to move forward along with the longitudinal transmission structure, and the printing platform reaches the position of the jet printing device to perform jet printing operation;

s5, the printing platform with the PCB placed thereon continues to advance along with the longitudinal transmission structure, and descends after the PCB is taken away after the printing platform reaches the output side of the jet printing equipment;

s6, lifting the printing platform of the longitudinal transmission structure on the other side, placing the PCB, rotating to adjust the angle, and repeating the steps S2-S5.

According to the spray printing process method provided by the invention, the operation of staggering the heights of all groups of printing platforms is realized by adopting height control, and the printing platforms in the positioning and spray printing processes can be staggered with the printing platform in a transfer standby state, so that the working efficiency can be greatly improved.

The invention has the beneficial effects that:

1. the two groups of printing platforms can move in a close fit manner, so that the working efficiency of the spray printing of the PCB can be improved;

2. the positioning precision is higher, and the improvement of the PCB spray printing precision is facilitated;

3. the travel limit is small, and the PCB with different sizes can be adapted, particularly the PCB with a large size;

4. the structure is simple and easy to use, and the manufacturing cost and the maintenance cost of the PCB spray printing equipment are reduced;

5. the whole spray printing equipment operates stably, the friction of moving parts is small, the abrasion is small, and the service life and the safety of the equipment are favorably improved;

6. the ink sucking and scraping disc module can clean the spray head in time, is favorable for ensuring the spray printing effect and prolongs the service life of the spray head.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of a portion of the longitudinal drive structure of the present invention;

FIG. 3 is a perspective view of a set of longitudinal drive configurations of the present invention;

FIG. 4 is a perspective view of the longitudinally movable frame of the present invention;

FIG. 5 is a perspective view of the platform crane of the present invention;

FIG. 6 is a perspective view of the positioning device of the present invention;

FIG. 7 is a perspective view of a camera module of the present invention;

FIG. 8 is a perspective view of an inkjet printing apparatus according to the present invention;

FIG. 9 is a schematic view of the ink sucking and scraping module of the present invention;

FIG. 10 is a perspective view of the ink sucking and scraping plate module of the present invention;

fig. 11 is a perspective view of a doctor blade lift cylinder portion of the present invention.

Reference numerals:

the base 100, the supporting seat 110, the longitudinal stator 111 and the longitudinal movable guide rail 112;

the device comprises a longitudinal transmission structure 200, a platform lifting guide rail 201, a platform lifting frame 210, a lifting frame transverse plate 211, a lifting frame vertical plate 212, a lifting movable sliding block 213, a longitudinal movable frame 220, a movable frame transverse plate 221, a movable frame vertical plate 222, a longitudinal linear motor rotor 230 and a longitudinal movable sliding block 240;

a printing platform 300, a rotational positioning motor 310;

the positioning device 400, the positioning device bracket 410, the transverse stator 411, the transverse guide rail 412, the camera module 420, the camera movable frame 421, the camera head 422, the transverse linear motor rotor 423, the transverse movable slider 424 and the light source box 425;

the device comprises a spray printing device 500, a spray printing device bracket 510, a spray printing device bracket upright 511, a spray printing device bracket beam 512, a trolley guide rail 513, a module lifting cylinder 514, a module lifting frame 515, a spray printing trolley 520 and a spray head 521;

the ink scraping device comprises an ink sucking disc module 600, a suction nozzle 601, an ink scraping sheet 602, an arc-shaped scraping edge 603, an ink scraping sheet lifting cylinder 610, a slope connecting block 620 and an ink flying receiving disc 630.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the invention can be practiced without these specific details, i.e., those skilled in the art can more effectively describe the nature of their work to others skilled in the art using the description and illustrations herein. Furthermore, it should be noted that the terms "front side", "rear side", "left side", "right side", "upper side", "lower side", and the like used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a specific part, respectively, and those skilled in the art should not understand that the technology beyond the scope of the present application is simply and innovatively adjustable in the directions. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. Well-known manufacturing methods, control procedures, component dimensions, material compositions, pipe arrangements, etc., have not been described in detail since they are readily understood by those of ordinary skill in the art, in order to avoid obscuring the present invention.

Fig. 1 is a perspective view of an embodiment of the present invention, and referring to fig. 1, an embodiment of the present invention provides an inkjet printing apparatus, including a base 100, support bases 110 disposed on left and right sides of the base 100, and a longitudinal transmission structure 200 disposed on the support bases 110, wherein the longitudinal transmission structure 200 can move longitudinally on the support bases 110. The space between the support bases 110 serves as a PCB board movement area.

Further, the base 100 is sequentially provided with a positioning device 400 and a jet printing device 500, which are respectively responsible for positioning and jet printing processes of the PCB.

Still further, referring to fig. 2 and 3, a platform lifting guide rail 201 is arranged on the longitudinal transmission structure 200, a platform lifting frame 210 is arranged on the platform lifting guide rail 201, and a printing platform 300 is arranged on the platform lifting frame 210. The one-side longitudinal transmission structures 200 respectively correspond to a group of printing platforms 300.

Still further, a rotary positioning motor 310 is disposed between the platform crane 210 and the printing platform 300, and is used for controlling the printing platform 300 to rotate and adjust the angle.

During working, a PCB is placed on one group of printing platforms 300, the angle of the printing platforms 300 is adjusted, the platform lifting frame 210 is lifted to a preset angle, then the longitudinal transmission structure 300 drives the PCB to move in the range of the motion area of the PC B board, and the positioning and spray printing process operation is matched.

After the work is completed, the PCB board is taken to the next process, and the printing platform 400 is lowered to the height and then returned to the starting point. Meanwhile, another set of printing platforms 300 can perform the positioning and jet printing process operations as described above, so that the subsequent PCB work is not affected, and the efficiency is significantly improved.

The above-disclosed inkjet printing apparatus is only a preferred embodiment of the present invention, and is only used for illustrating the technical solutions of the present invention, and not for limiting the same. It will be understood by those skilled in the art that the foregoing technical solutions may be modified or supplemented by the prior art, or some of the technical features may be replaced by equivalents; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

A jet printing process method adopts the jet printing equipment, and the process comprises the following steps:

s1, lifting a printing platform 300 of the longitudinal transmission structure 200 on one side, placing a PCB, and rotating to adjust the angle;

s2, the printing platform 300 of the longitudinal transmission structure 200 on the other side is in a descending state for standby;

s3, the printing platform 300 with the PCB placed moves forward along with the longitudinal transmission structure 200, and the printing platform reaches the position of the positioning device 400 to perform positioning operation;

s4, the printing platform 300 with the PCB placed thereon continues to move forward along with the longitudinal transmission structure 200, and the printing platform reaches the position of the jet printing device 500 to perform jet printing operation;

s5, the printing platform 300 with the PCB placed thereon continues to move forward along with the longitudinal transmission structure 200, and after the printing platform reaches the output side of the jet printing equipment and the PCB is taken away, the printing platform 300 descends;

s6, the printing platform 300 of the longitudinal transmission structure 200 on the other side is lifted, the PCB is placed, the angle is adjusted in a rotating mode, and then the steps S2-S5 are repeated.

The above-disclosed method for spray printing is only a preferred embodiment of the present invention, and is only used to illustrate the technical solution of the present invention, not to limit the same. It will be understood by those skilled in the art that the foregoing technical solutions may be modified or supplemented by the prior art, or some of the technical features may be replaced by equivalents; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Reference will now be made in detail to some embodiments, wherein "an embodiment" is referred to herein as a particular feature, structure, or characteristic that may be included in at least one implementation of the present application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Furthermore, the details representative of one or more embodiments are not necessarily indicative of any particular order, nor are they intended to be limiting.

In embodiment 1, the two supporting bases 110 are respectively disposed at the left and right sides of the base 100, the longitudinal transmission mechanism 200 of the supporting base 110 can move along the front and rear directions, and the lifting frame 300 of the longitudinal transmission mechanism 200 can move along the up and down directions. One support base 110 corresponds to one longitudinal driving structure 200 and one printing platform 300.

In embodiment 2, referring to fig. 3, a linear longitudinal stator 111 and a linear longitudinal movable rail 112 are disposed on the support base 110. Referring to fig. 4, the longitudinal transmission structure 200 includes a longitudinal movable frame 220, a longitudinal linear motor mover 230, and a longitudinal movable slider 240, the longitudinal linear motor mover 230 corresponds to the longitudinal stator 111, and the longitudinal movable slider 240 corresponds to the longitudinal movable guide 112.

The longitudinal linear motor mover 230 corresponds to the longitudinal stator 111 to form a direct current motor type transmission structure. The longitudinal movable slider 230 corresponds to the longitudinal movable rail 112 for guiding the movement of the movable frame 210. When the linear motor rotor 230 works, electricity is firstly conducted, the coil windings in the longitudinal stator 111 are electrified to generate an induction magnetic field, the magnetic field and the permanent magnets in the longitudinal linear motor rotor 230 interact to perform axial linear motion, the current direction leading to the coils is changed, and the moving direction of the longitudinal linear motor rotor 230 can be changed. Therefore, the spray printing processing process of the whole PCB is more accurate, the feeding speed is higher, the positioning precision is higher, and the spray printing processing method is suitable for PCBs of different sizes.

In embodiment 3, the longitudinal movable frame 220 includes a movable frame horizontal plate 221 and a movable frame vertical plate 222, and the movable frame vertical plate 222 is disposed at a position of the movable frame horizontal plate 221 toward a PCB board movement area side. The longitudinal stator 111 and the longitudinal movable rail 112 are located below the movable frame cross plate 221. The platform lift rail 201 is disposed on a head riser 222. The whole structure is more compact, and the lifting process of the platform lifting frame 210 is more stable.

Embodiment 4, referring to fig. 5, the platform crane 210 includes a crane cross plate 211 and a crane riser 212, and the crane cross plate 211 is located at a position of the crane riser 212 toward a PCB board movement area side. The lifting frame vertical plate 212 is provided with a lifting movable slide block 213 corresponding to the platform lifting guide rail 201. The rotational positioning motor 310 is disposed on the crane cross plate 211. The whole platform crane 210 is more stable in structure, and the lifting process of the printing platform 300 is more stable.

Embodiment 5, referring to fig. 6, a positioning device 400 includes a positioning device holder 410 and a camera module 420. The camera module 420 is responsible for positioning the positioning mark on the PCB to ensure the inkjet printing effect. The front side of the positioner bracket 410 is provided with a linear transverse stator 411 and a linear transverse guide 412. Referring to fig. 7, the camera module 420 includes a camera moving frame 421, a camera head 422 is disposed at a front side of the camera moving frame 421, a transverse linear motor mover 423 and a transverse moving slider 424 are disposed at a rear side of the camera moving frame 421, the transverse linear motor mover 423 corresponds to the transverse stator 411, and the transverse moving slider 424 corresponds to the transverse guide 412. The transverse linear motor rotor 423 corresponds to the linear transverse stator 411 to form a direct current motor magnetic suspension type transmission structure. The lateral movable slider 424 corresponds to the lateral guide 412, and guides the movement of the camera movable frame 421.

When the magnetic suspension fixing structure works, the magnetic suspension fixing structure is firstly electrified, the coil windings in the transverse stator 411 are electrified to generate an induction magnetic field, the magnetic field and the permanent magnets in the transverse linear motor rotor 423 interact to perform axial linear motion, the current direction leading to the coils is changed, and the moving direction of the transverse linear motor rotor 423 can be changed. Therefore, the whole positioning process is more accurate, the feeding speed is higher, the positioning precision is higher, and the PCB positioning device is suitable for PCBs with different sizes.

In this embodiment, the transverse guide rails 412 are optionally distributed on the upper and lower sides of the transverse stator 411.

In this embodiment, optionally, the light source box 425 is disposed on the front side of the camera module 420, and the camera head 422 and the light source box 425 are arranged in rows and on the upper and lower sides, so as to improve the accuracy of photographing positioning.

In this embodiment, optionally, two camera module 420 transverse guide rails 412 are arranged on the positioning device bracket 410 and extend along the left and right side directions, and the camera modules 420 are arranged on the left and right sides of the positioning device bracket 410 in rows and correspond to the positioning of four corner positions of the PCB, which is beneficial to improving the working efficiency.

In embodiment 6, referring to fig. 8, the inkjet printing apparatus 500 includes an inkjet printing apparatus support 510, an inkjet printing cart 520 is disposed on the inkjet printing apparatus support 510, and a nozzle 521 is disposed on the inkjet printing cart 520. The jet printing trolley 520 can move on the jet printing device bracket 510 and is responsible for jet printing work of the PCB. The ink-jet printing device bracket 510 is provided with an ink-sucking and ink-scraping disk module 600, and the ink-sucking and ink-scraping disk module 600 is provided with a suction nozzle 601 and an ink-scraping blade 602. After the jet printing equipment prints a PCB, the jet printing trolley 520 moves to the position of the ink sucking and scraping disk module 600, ink pressed out by the spray head 521 is sucked away by the suction force of the suction nozzle 601, and the jet printing trolley 520 moves back and forth while sucking, so that the ink residual on the surface of the spray head 521 is scraped away by the ink scraping sheet 602, and the whole spray head 521 is kept clean.

In embodiment 7, the inkjet printing apparatus support 510 includes an inkjet printing apparatus support column 511 and an inkjet printing apparatus support beam 512, a carriage guide rail 513 is disposed on the inkjet printing apparatus support beam 512, and the inkjet printing carriage 520 is disposed on the inkjet printing apparatus support beam 512, so that the inkjet printing carriage 520 moves along the carriage guide rail 513 in the left-right direction.

In this embodiment, optionally, a linear motor stator is arranged on the jet printing device support beam 512, and a linear motor rotor is arranged on the jet printing trolley 520, so that a direct current motor transmission structure is formed, the jet printing process is more stable, the feeding speed is higher, the positioning accuracy is higher, and the jet printing device support beam is suitable for PCBs with different sizes.

In embodiment 8, referring to fig. 8 and 9, a module lifting cylinder 514 is disposed on the upright column 511 of the support of the inkjet printing apparatus, a module lifting frame 515 is disposed on the module lifting cylinder 514, and the ink sucking and scraping plate module 600 is connected to the module lifting frame 515.

In embodiment 9, referring to fig. 10 and 11, the ink sucking and scraping plate module 600 is provided with an ink scraping blade lifting cylinder 610 and a slope connecting block 620, the ink scraping blade lifting cylinder 610 is connected with the slope connecting block 620, a slope is provided on the slope connecting block 620, the ink scraping blade 602 is connected with the slope of the slope connecting block 620, and the ink scraping blade 602 inclines towards the suction nozzle 601. The doctor blade lift cylinder 610 controls the doctor blade 602 to rise when cleaning is required, and the doctor blade lift cylinder 610 controls the doctor blade 602 to fall when cleaning is not required. The ink scraping blade 602 is inclined to the suction nozzle 601, and the ink scraped by the ink scraping blade 602 flows to the suction nozzle 601 along the inclined ink scraping blade 602 and is sucked away more easily.

In this embodiment, optionally, an ink suction groove is arranged in the ink suction and scraping tray module 600, and a pump is connected to the ink suction groove, so that the suction nozzle 601 forms a suction force.

In this embodiment, an end of the wiping blade 602 is optionally provided with an arc-shaped wiping edge 603, so as to improve the wiping efficiency.

In example 10, a flying ink receiving tray 630 is provided beside the ink sucking and scraping tray module 600 for receiving flying ink.

In this embodiment, the flying ink receiving disc 630 may optionally be externally connected to a pump for pumping away flying ink.

In embodiment 11, assuming that the printing platform 300 corresponding to the left longitudinal transmission structure 200 is a first group of printing platforms 300, and the printing platform 300 corresponding to the right longitudinal transmission structure 200 is a second group of printing platforms 300, the process includes:

s1, lifting a first group of printing platforms 300, placing a PCB, and rotating to adjust the angle;

s2, the second group of printing platforms 300 are in a descending state for standby;

s3, the first group of printing platforms 300 moves forward along with the longitudinal transmission structure 200 and reaches the position of the positioning device 400 to perform positioning operation;

s4, the first group of printing platforms 300 continuously move forward along with the longitudinal transmission structure 200 to reach the position of the ink jet printing device 500 for ink jet printing operation, and after the ink jet printing is finished, the ink jet printing trolley 520 moves to the position of the ink suction and scraping disc module 600 to clean the spray head 521;

s5, the first group of printing platforms 300 continuously move forward along with the longitudinal transmission structure 200, and after the first group of printing platforms reaches the output side of the jet printing equipment and the PCB is taken away, the printing platforms 300 descend;

s6, the second group of printing platforms 300 raises and puts the PCB, rotates to adjust the angle, and then repeats the steps from S2 to S5.

The present invention can be modified and adapted appropriately from the above-described embodiments, according to the principles described above. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention.