CN214646916U - PCB character ink jet printer - Google Patents

Abstract

The utility model relates to a PCB character ink-jet printer, which comprises a printing table and a printing head, wherein the printing head is arranged on the printing table and can horizontally move left and right; a plurality of platforms used for placing the PCB are arranged on the printing table in a front-back horizontal moving mode; any one platform is horizontally moved to a printing station on the printing table, and then the printing head is horizontally moved to the position above the corresponding platform so as to print. The beneficial effects of the utility model are that can realize automatic feed and self-cleaning and beat printer head, but and the angle of automatic adjustment PCB board, print the accuracy and improve greatly, compact structure, the function is various, prints efficiency and improves greatly.

Description

PCB character ink jet printer

Technical Field

The utility model relates to a printer technical field, concretely relates to PCB character ink jet printer.

Background

With the development of electronic technology, PCB circuit boards are increasingly applied, and there are many characters and lines on the PCB board, and the production of these characters and lines is an important process for the production of PCB boards. At present, most of PCB character production modes adopt the traditional silk screen printing mode. Chinese patent No. CN110053361A discloses a method and system for making up printing defects based on a PCB inkjet printer. The patent provides a method for prolonging the service life of a nozzle of a PCB ink-jet printer and reducing the production cost of the PCB industry.

At present, printer PCB board among the prior art is placed and is had the deviation, and it is low to print the precision, prints inefficiency simultaneously, can't wash printer head moreover.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a PCB character ink jet printer is provided, aim at solving above-mentioned technical problem.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a PCB character ink-jet printer comprises a printing table and a printing head, wherein the printing head is arranged on the printing table and can horizontally move left and right; a plurality of platforms used for placing the PCB are arranged on the printing table in a front-back horizontal moving mode; and horizontally moving any one platform to a printing station on the printing table, and then horizontally moving the printing head to the position above the corresponding platform so as to print.

The utility model has the advantages that: in the printing process, firstly, a PCB to be printed is placed on a platform in a mode which can be thought by a person skilled in the art; and then horizontally moving any one platform to a printing station on the printing table, and finally horizontally moving the printing head to the position above the corresponding platform so as to print the PCB. The utility model discloses can realize the transport and the printing of a plurality of PCB boards, print efficiency and improve greatly.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

And the PCB board placing device comprises a controller and a detecting device, wherein the detecting device is used for detecting whether the PCB board placing on the platform is correct, an adjusting device used for adjusting the position of the adjusting device is arranged at the bottom of each platform, and the detecting device and the adjusting devices are respectively in communication connection with the controller.

When the further scheme is adopted, the PCB on the platform is detected whether to be placed correctly through the detection device, the corresponding signal is sent to the controller, and the controller receives the corresponding signal for processing and analysis; when the PCB is placed incorrectly, the controller controls the plurality of adjusting devices to adjust the angle of the platform, so that the angle of the PCB is adjusted, and the printing accuracy is improved.

Furthermore, detection device includes at least one camera, the camera with the controller communication is connected, and its front and back horizontal migration erect in on the print bench to can reciprocate, a plurality of the platform is located the below of camera.

The beneficial effect of adopting the above further scheme is that the camera collects the picture of the PCB on the platform, and sends the corresponding information to the controller, and the controller receives the corresponding information, processes and analyzes the information, and judges whether the position of the PCB is correct.

Further, each adjusting device comprises a base and a fixing plate, and the base is horizontally arranged on the printing table in a front-back moving mode; a plurality of adjusting mechanisms are uniformly arranged on the base at intervals, and the fixing plate is horizontally and fixedly arranged on the adjusting mechanisms; the platform is horizontally arranged on the fixed plate and can move up and down.

The further scheme has the advantages that when the device is used, the position of the fixing plate is adjusted through the plurality of adjusting mechanisms, so that the angle between the platform and the PCB is adjusted, and the printing accuracy is improved; in addition, the platform can reciprocate to better and beat printer head cooperation, improve the effect of printing.

Furthermore, each adjusting mechanism comprises two sliding blocks, wherein one sliding block is horizontally and slidably mounted on the base, the other sliding block is horizontally and slidably mounted on one sliding block, and the sliding directions of the two sliding blocks are perpendicular to each other; the fixed plate is fixedly arranged on the other sliding block.

The beneficial effect of adopting above-mentioned further scheme is that during the adjustment, through the angle of two mutually perpendicular gliding sliders in order to adjust the fixed plate to the angle of adjustment platform and PCB board, in order to improve the accuracy of printing.

Furthermore, the number of the adjusting mechanisms is four, and the four adjusting mechanisms are distributed between the base and the fixing plate in a square shape; the adjusting device further comprises three groups of driving assemblies which are respectively used for driving any three adjusting mechanisms to operate, and the three groups of driving assemblies are respectively in communication connection with the controller.

The beneficial effects of adopting above-mentioned further scheme are that when using, through the operation of three adjustment mechanism of three group drive to four adjustment mechanism of drive remove, and then adjust the angle of fixed plate, it is convenient to adjust, practices thrift the energy consumption.

Furthermore, a plurality of platforms are arranged from top to bottom at intervals and can move up and down; an opening penetrating up and down is formed in the fixed plate, and a gear is horizontally and rotatably arranged below the fixed plate; the platform is horizontally and fixedly arranged on the mounting seat, the lower end of the mounting seat downwards penetrates through the opening and extends to the position below the opening, a rack is vertically and fixedly arranged on the mounting seat, and the rack is meshed with the gear; and rotating the gear, and driving the mounting seat and the platform to move up and down through the meshing force of the gear and the rack.

The beneficial effect of adopting above-mentioned further scheme is that when using, through the mode rotation gear that the skilled person in the art can think to through its engaging force with the rack drive mount pad and platform and reciprocate, so that when printing the better and the printer head cooperation of beating of platform and the PCB board on it, improve the effect of printing.

Furthermore, a warpage detection device for detecting the flatness of the PCB to be printed is erected at a position, above the moving track of the platform, on the printing table, and the warpage detection device comprises a mounting plate and at least one scraping blade, wherein the mounting plate can move up and down and is erected on the printing table in a positioning manner; the scraping blade is rotatably arranged on the mounting plate in the front-back direction, a detection plate is fixedly connected onto the scraping blade, and one end of the detection plate extends towards the mounting plate and is provided with a through hole; the mounting plate is fixedly provided with at least one group of sensor groups which correspond to the scraping blades one by one, each group of sensor groups comprises two opposite photoelectric sensors, the two photoelectric sensors are relatively and fixedly arranged on the mounting plate, and the photoelectric sensors for receiving light rays are in communication connection with the controller; one end of the detection plate extends to a position between the two photoelectric sensors.

The further scheme has the advantages that when the flatness of the PCB meets the requirement, the PCB is not in contact with the scraping blade, and the scraping blade is not moved, so that light emitted by one photoelectric sensor passes through the through hole and then is received by the other photoelectric sensor, and the flatness of the PCB is qualified; when the flatness of the PCB does not meet the requirement, the PCB is contacted with the scraping blade and the scraping blade is rotated, so that light emitted by one photoelectric sensor cannot pass through the through hole, and the other photoelectric sensor cannot receive the light, which indicates that the flatness of the PCB is unqualified, and the controller controls the machine to be stopped to replace the PCB.

Furthermore, a cleaning device for cleaning the printing head is fixedly arranged on the printing table and is positioned below the printing head; the cleaning device comprises a cleaning table, and the cleaning table is horizontally arranged on the printing table in a vertically movable mode and can horizontally move back and forth; the cleaning table is fixedly provided with a flexible ring matched with the printing head, at least one spray head capable of spraying cleaning liquid and at least one scraper capable of scraping stains on the printing head are arranged on the cleaning table at intervals at the position in the flexible ring, and the spray head and the scraper are arranged at intervals.

When the further scheme is adopted, the printing head horizontally moves to the upper part of the cleaning platform; then, the cleaning platform is moved to be in contact with the printing head, the spray head sprays water, the cleaning platform is moved horizontally, and meanwhile the scraper scrapes stains on the printing head, so that the printing head can be cleaned better, and the cleaning effect is better.

Furthermore, at least one vacuum cavity is respectively arranged in each platform and is communicated with a vacuum device on the printing table through a hose; the upper surface of the platform is provided with a plurality of adsorption holes communicated with the vacuum cavity.

The beneficial effects of adopting above-mentioned further scheme are that during the use, the PCB board is arranged in on the platform after, and the vacuum ware work carries out the evacuation to the vacuum cavity, and the PCB board is lived in the platform through adsorbing the hole absorption, easy dismounting, labour saving and time saving.

Drawings

Fig. 1 is one of the overall structural diagrams of the present invention;

fig. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic structural view of the platform mounting of the present invention;

FIG. 4 is a schematic view of a part of the structure of the platform installation of the present invention;

FIG. 5 is a schematic structural view of the lifting of the platform of the present invention;

fig. 6 is an exploded view of the lifting of the platform of the present invention;

fig. 7 is a schematic structural view of the warp detection device of the present invention;

FIG. 8 is an enlarged view of A in FIG. 7;

fig. 9 is a schematic structural view of the middle cleaning device of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. printing table, 2, printing head, 3, platform, 4, camera, 5, base, 6, fixed plate, 7, slider, 8, drive assembly, 9, gear, 10, mount pad, 11, rack, 12, mounting panel, 13, doctor-bar, 14, detection board, 15, through-hole, 16, photoelectric sensor, 17, clean bench, 18, flexible circle, 19, doctor-bar, 20, absorption hole, 21, mounting bracket, 22, link, 23, motor I, 24, lead screw I, 25, motor II, 26, fixed block, 27, elastic component, 28, adjusting bolt, 29, fixed frame, 30, motor III, 31, lead screw II, 32, cylinder, 33, baffle.

Detailed Description

The principles and features of the present invention will be described with reference to the drawings and the embodiments, which are provided for illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 to 9, the utility model provides a PCB character ink jet printer, including print table 1 and beat printer head 2, beat printer head 2 and erect on print table 1 to horizontal migration about can, concrete scheme does, the welding has mounting bracket 21 on print table 1, and there is linear electric motor both sides fixed mounting at mounting bracket top respectively, beats printer head 2's both ends and passes through bolt and linear electric motor fixed connection respectively. Horizontal migration installs a plurality of platforms 3 that are used for placing the PCB board around still on the print table 1, and platform 3's moving direction is perpendicular with the moving direction who beats printer head 2, and a plurality of platforms 3 are from last to interval setting down, and all can reciprocate, and concrete scheme is: the printing table 1 is provided with a plurality of groups of slide rail groups from top to bottom, each slide rail group comprises two slide rails which are fixedly arranged on the printing table 1 at intervals horizontally through bolts, each slide rail is provided with a linear motor through the bolts, and the two linear motors are fixedly connected with the two sides of the corresponding platform 3 through the bolts respectively. Any one of the stages 3 is horizontally moved to a printing station on the printing table 1, and then the print head 2 is horizontally moved above the corresponding stage 3 to perform printing.

The plurality of platforms 3 may be arranged horizontally at intervals or may be arranged vertically at intervals, preferably the latter, to save more space.

In the printing process, firstly, a PCB to be printed is placed on the platform 3 in a manner that can be thought by those skilled in the art; then, horizontally moving any one of the platforms 3 to a printing station on the printing table 1; finally, the print head 2 is horizontally moved above the corresponding stage 3 to print the PCB board. The utility model discloses can realize the transport and the printing of a plurality of PCB boards, print efficiency and improve greatly.

Preferably, the number of the platforms 3 is preferably two, when one of the platforms 3 moves to the printing station, the other platform 3 moves to one side of the printing table 1 for loading, and only one platform 3 is located at the printing station on the printing table 1 all the time.

And a groove matched with the platform 3 can be arranged on the printing table 1, so that the space is saved.

During printing, the PCB to be printed can be automatically placed on the platform 3 through the robot, the manual feeding mode can be adopted, the former is preferred, the efficiency is higher, and time and labor are saved.

In addition, two ends of one of the slide rails in each group of slide rail groups are respectively and fixedly provided with a limiting sensor through bolts, so that the moving precision of the platform 3 is improved, and excessive movement is avoided.

Example 1

As shown in fig. 1 and 2, on the basis of the above structure, the present embodiment further includes a controller and a detection device for detecting whether the PCB board on the platform 3 is correctly placed, an adjustment device for adjusting the orientation of each platform 3 is installed at the bottom of each platform 3, and the detection device and the plurality of adjustment devices are respectively in communication connection with the controller. When printing, firstly, detecting whether the PCB on the platform 3 is correctly placed through the detection device, and sending a corresponding signal to the controller, and the controller receives the corresponding signal for processing and analysis; when the PCB is placed incorrectly, the controller controls the plurality of adjusting devices to adjust the angle of the platform 3, so that the angle of the PCB is adjusted, and the printing accuracy is improved.

It should be noted that, the PCB is placed on the platform 3 in a manner that can be conceived by those skilled in the art, and the orientations of the printing head 2 and the PCB are fixed during printing, but the orientation of the printing head 2 is not changed, so when the detection device detects that the orientation of the PCB is not matched with the printing head 2, the PCB needs to be adjusted, that is, the platform 3 is moved back and forth and left and right, and the platform 3 is moved up and down to be matched with the printing head 2.

Example 2

On the basis of the first embodiment, in this embodiment, the detection device includes at least one camera 4, the camera 4 is connected to the controller in a communication manner, and is horizontally moved back and forth and erected on the printing table 1, and is movable up and down, and the plurality of platforms 3 are located below the camera 4 (it is ensured that the camera 4 can acquire information, such as an orientation, of the PCB on the platform 3). During printing, the camera 4 is used for collecting pictures of the PCB on the platform and sending corresponding information to the controller, and the controller receives the corresponding information, processes and analyzes the information and judges whether the position of the PCB is correct or not.

Preferably, the camera 4 is a CCD camera, so that the acquisition effect is better, and the accuracy is higher.

In addition, the number of the cameras 4 is preferably two, and the specific installation manner of the two cameras 4 is as follows: the mounting frame 21 is fixedly provided with a motor, and the output end of the motor extends along the vertical direction and is fixedly connected with one end of a vertically arranged screw rod; the nut of the screw rod is fixedly provided with a connecting frame 22 through a bolt, the connecting frame 22 adopts a U-shaped frame, and the two cameras 4 are respectively connected with the two sides of the U-shaped frame in a sliding mode through moving blocks.

It should be noted that each moving block is engaged with two sides of the U-shaped frame and can move only under a certain external force.

Example 3

As shown in fig. 3 to 6, on the basis of the first embodiment, in the present embodiment, each adjusting device includes a base 5 and a fixing plate 6, the base 5 is horizontally installed on the printing table 1 in a front-back moving manner, and two sides of the base are respectively in sliding fit with two corresponding sliding rails; a plurality of adjusting mechanisms are uniformly installed on the base 5 at intervals, and the fixing plate 6 is horizontally and fixedly installed on the plurality of adjusting mechanisms; the platform 3 is horizontally mounted on the fixed plate 6 and can move up and down. When the device is used, the position of the fixing plate 6 is adjusted through a plurality of adjusting mechanisms, so that the angle between the platform 3 and the PCB is adjusted, and the printing accuracy is improved; in addition, the platform 3 can move up and down so as to be better matched with the printing head 2 and improve the printing effect.

The fixing plate 6 may be a rectangular plate, a circular plate, or a plate body having another suitable geometric shape.

Example 4

On the basis of the third embodiment, in the third embodiment, each adjusting mechanism comprises two sliding blocks 7, wherein one sliding block 7 is horizontally installed on the base 5 in a sliding manner, and a sliding rail in sliding fit with the sliding block 7 is welded on the base 5; the other sliding block 7 is horizontally installed on one sliding block 7 in a sliding manner, a sliding rail in sliding fit with the other sliding block 7 is welded on one sliding block 7, and the sliding directions of the two sliding blocks 7 are vertical to each other; the fixed plate 6 is fixedly mounted on the other slide block 7. During adjustment, the two sliders 7 are moved in a manner that will be understood by those skilled in the art, and the angle of the fixing plate 6 is adjusted by the cooperation of the two sliders 7 sliding vertically to each other, so that the angle of the stage 3 and the PCB board is adjusted to improve the printing accuracy.

Above-mentioned another slider 7 can be directly through bolt and 6 fixed connection of fixed plate, also can weld the backup pad that the level set up, and the backup pad passes through bolt and 6 fixed connection of fixed plate, increases the stability of fixed plate 6 to increase the stability of platform 3 and PCB board, guarantee the effect of printing.

In addition, the plurality of adjusting mechanisms can move simultaneously or respectively, and particularly can be adjusted according to the operation requirement, so that the angles of the fixing plate 6 and the platform 3 can be better adjusted.

Example 5

On the basis of the third embodiment, in the present embodiment, there are four adjusting mechanisms, and the four adjusting mechanisms are distributed between the base 5 and the fixing plate 6 in a square shape; the adjusting device further comprises three groups of driving assemblies 8 which are respectively used for driving any three adjusting mechanisms to operate, and the three groups of driving assemblies 8 are respectively in communication connection with the controller. During the use, through the operation of three adjustment mechanism of three 8 drive of three group drive assembly to four adjustment mechanism of drive remove, and then adjust the angle of fixed plate 6, so that the angle of adjusting platform 3 and PCB board, it is convenient to adjust, practices thrift the energy consumption.

The fixing plate 6 is preferably a square plate, and the four adjusting mechanisms are respectively located at four corners of the fixing plate 6.

It should be noted that, the three sets of driving assemblies 8 respectively drive the three adjusting mechanisms to operate, and then the rest adjusting mechanisms also operate accordingly, so that four sets of driving assemblies are not required to be arranged, and the cost is saved.

Each group of driving assemblies 8 comprises a first motor 23 and a first lead screw 24, the first motor 23 is fixedly arranged on the base 5 through bolts, and the output end of the first motor extends along the horizontal direction; the first lead screw 24 is horizontally and fixedly arranged, one end of the first lead screw is welded with the output end of the first motor 23, and one sliding block 7 in the corresponding group of sliding block groups is fixedly connected with a nut on the first lead screw 24 through a bolt; the first motor 23 drives the first screw 24 to rotate, so that the nut on the first screw 24 moves horizontally along the axial direction of the first screw 24 and drives one of the sliders 7 to move.

Example 6

On the basis of the third embodiment, in the present embodiment, an opening penetrating up and down is formed on the fixed plate 6, and a gear 9 is horizontally and rotatably mounted below the fixed plate 6; the platform 3 is horizontally and fixedly arranged on an installation seat 10 through bolts, the lower end of the installation seat 10 downwards penetrates through the opening and extends to the position below the opening, a rack 11 (welded) is vertically and fixedly arranged on the installation seat, and the rack 11 is meshed with the gear 9; the gear 9 is rotated and drives the mounting seat 10 and the platform 3 to move up and down through the meshing force of the gear and the rack 11. When the device is used, the gear 9 is rotated in a manner that can be thought by a person skilled in the art, and the mounting seat 10 and the platform 3 are driven to move up and down by the meshing force of the gear and the rack 11, so that the platform 3 and a PCB (printed circuit board) on the platform are better matched with the printing head 2 during printing, and the printing effect is improved.

A second motor 25 is fixedly installed on the fixed plate 6 through bolts, the output end of the second motor 25 extends along the horizontal direction and is fixedly connected with a horizontally arranged rotating shaft, and a gear 9 is coaxially and fixedly sleeved on the rotating shaft; the second motor 25 drives the rotating shaft and the gear 9 to rotate, and drives the mounting seat 10 and the platform 3 to move up and down through the meshing force of the second motor and the rack 11.

Example 7

As shown in fig. 7 and 8, in the first embodiment, a warpage detection device for detecting the flatness of the PCB to be printed is erected on the printing table 1 above the moving track of the platform 3, the warpage detection device includes a mounting plate 12 and at least one wiper 13, the mounting plate 12 is erected on the printing table 1 in a vertically movable and positioned manner; the scraping blade 13 is arranged on the mounting plate 12 in a rotating manner along the front-back direction, a detection plate 14 is fixedly connected onto the scraping blade, and one end of the detection plate 14 extends towards the mounting plate 12 and is provided with a through hole 15; the scraping blade 13 is rotatably connected with the mounting frame 12 through a rotating shaft, and the detecting plate 14 and the scraping blade 13 are integrally formed, so that the structure is simple.

At least one sensor group corresponding to the scraping blade 13 one by one is fixedly installed on the installation plate 12, each sensor group comprises two opposite photoelectric sensors 16, the two photoelectric sensors 16 are relatively and fixedly installed on the installation plate 12 through bolts, a gap is reserved between the two photoelectric sensors, one photoelectric sensor 16 emits light, the other photoelectric sensor 16 receives the light emitted by one photoelectric sensor 16, and the photoelectric sensor 16 receiving the light is in communication connection with the controller; one end of the detection plate 14 extends between the two photosensors 16. When the flatness of the PCB meets the requirement, the PCB is not in contact with the scraping blade 13, and the scraping blade 13 is not moved, so that light emitted by one photoelectric sensor 16 passes through the through hole 15 and is received by the other photoelectric sensor 16, which indicates that the flatness of the PCB is qualified; when the flatness of the PCB is not satisfactory, the PCB contacts with the scraping blade 13 and pushes the scraping blade 13 to rotate, so that light emitted by one photoelectric sensor 16 cannot pass through the through hole 15, and the other photoelectric sensor 16 cannot receive the light, which indicates that the flatness of the PCB is not satisfactory, and at the moment, the controller controls the machine to stop to replace the PCB.

The specific installation mode of the installation plate 12 is as follows: a box body with an open lower side is fixedly arranged on the mounting frame 22 through bolts, and the mounting frame 12 is arranged in the box body in a way of moving up and down; the two ends of the lower side of the box body are respectively fixedly provided with a fixed block 26 through bolts, an elastic part 27 is vertically and fixedly arranged on the fixed block 26, and the upper end of the elastic part 27 is abutted against the lower side of the mounting frame 12; the both ends of box body upside have adjusting bolt 28 respectively threaded connection, and the equal vertical downwardly extending of lower extreme of every adjusting bolt 28 is to in the box body to with the upside butt of mounting bracket 12. In use, the adjustment bolt 28 is tightened or loosened to adjust the position of the mounting bracket 12 and thus the position of the wiper blade 13.

Preferably, the elastic member 27 is a spring, and may be a rubber column; in addition, the number of the wiper blades 13 is preferably plural, and the plural wiper blades 13 are uniformly spaced in a direction perpendicular to the stage 3.

The mounting frame 12 may be an integral body, and then the mounting frame 12 is provided with a plurality of scraping blades 13; it is also possible to provide a plurality of holders corresponding one-to-one to the plurality of doctor blades 13, in which case the plurality of holders are mounted on a connecting plate which cooperates with the adjusting bolt 28 and the elastic element 27.

In addition, a baffle 33 is fixedly mounted on the box body through bolts and used for shielding the scraper 13 from dust.

Example 8

As shown in fig. 9, on the basis of the above structure, in the present embodiment, a cleaning device for cleaning the printing head 2 is further fixedly mounted on the printing table 1, and the cleaning device is located below the printing head 2; the cleaning device comprises a cleaning table 17, and the cleaning table 17 is horizontally arranged on the printing table 1 in a vertically movable manner and can horizontally move back and forth; a flexible ring 18 which is matched with the printing head 2 is fixedly arranged on the cleaning platform 17 in a manner that can be thought by a person skilled in the art, at least one spray head which can spray cleaning liquid and at least one scraper 19 which can scrape stains on the printing head 2 are arranged on the cleaning platform 17 at intervals in the flexible ring 18, and the spray head and the scraper 19 are arranged at intervals. When cleaning, first, the print head 2 is horizontally moved to above the cleaning table 17; then, the cleaning platform 17 moves up to contact with the printing head 2, and the nozzle 19 sprays water and moves the cleaning platform 17 horizontally, so as to clean the printing head 2 better and achieve better cleaning effect.

The specific installation mode of the cleaning table 17 is as follows: a fixing frame 29 is fixedly arranged on the printing table 1 through bolts, a third motor 30 is fixedly arranged on the fixing frame 29 through bolts, and the output end of the third motor 30 is vertically upward and is fixedly connected with the lower end of a second screw rod 31; the upper end of the second screw rod 31 is fixedly connected with one end of the air cylinder 32, and the telescopic end of the air cylinder 32 is fixedly connected with the cleaning table 17. During cleaning, the third motor 30 drives the second lead screw 31 to rotate, drives the nut on the second lead screw 31 and the air cylinder 32 to move up and down, and the air cylinder 32 drives the cleaning table 17 to move horizontally, and meanwhile, the spray head 19 sprays water to clean the printing head 2.

The flexible ring 18 may be a rubber ring, and has a buffering effect on the print head 2 to protect the print head.

In addition, each spray head 19 is communicated with the water supply equipment through a pipeline, a water pump is arranged on the pipeline, and one water pump can be arranged at the water outlet of the water supply equipment.

Preferably, the number of the nozzles 19 is preferably plural, and the plural nozzles 19 are distributed along the length direction of the print head 2; meanwhile, the number of the scrapers 19 is also preferably plural, and the plural heads and the plural scrapers 19 are alternately arranged at intervals.

In addition, the two sides of the fixed frame 29 are vertically and fixedly provided with guide rails relatively through bolts, the cleaning table 17 is in sliding fit with the two guide rails, the cleaning table 17 can be in direct sliding fit with the guide rails or can be welded with a guide frame, and the guide frame is in sliding fit with the guide rails.

The plurality of scrapers 19 can be located at the same height, or two scrapers 19 with different heights can be arranged, and the heights of two adjacent scrapers 19 are different, preferably the latter, so that stains on different parts of the printing head 2 can be removed, and the cleaning effect is better.

The cleaning table 17 is moved in a small range in the horizontal direction to improve the cleaning effect of the print head 2.

Example 9

On the basis of the structure, in the embodiment, each platform 3 is internally provided with at least one vacuum cavity respectively, the vacuum cavities are communicated with the vacuum devices on the printing table 1 through hoses, each hose is provided with a vacuum valve respectively, and each vacuum valve and each vacuum device are in communication connection with the controller respectively; the upper surface of the platform 3 is provided with a plurality of adsorption holes 20 communicated with the vacuum cavity. During the use, the PCB board is arranged in on platform 3 back, and the vacuum ware is worked as and is carried out the evacuation to the vacuum cavity, and platform 3 adsorbs the PCB board through adsorption hole 20, easy dismounting, labour saving and time saving.

Preferably, in this embodiment, each platform 3 is provided with a plurality of vacuum chambers therein, the vacuum chambers are not communicated with each other, and when one of the vacuum chambers fails, the remaining vacuum chambers can still operate, so as to ensure the stability of the PCB.

The whole device may be powered by a storage battery, or may be powered by an external power source, and the latter is preferred.

In addition, each electronic component can be connected with the controller through a line or can be connected through wireless communication, and the latter is preferred to avoid line interference; in addition, the above electronic components are all in the prior art, and the control circuit between the electronic components and the controller is also in the prior art.

The working principle of the utility model is as follows:

first, a PCB board to be printed is placed on the stage 3 in a manner that will occur to those skilled in the art;

secondly, acquiring pictures of the PCB on the platform through a camera 4, sending corresponding information to a controller, receiving, processing and analyzing the corresponding information by the controller, judging whether the position of the PCB is correct or not, sending corresponding signals to the controller, and receiving the corresponding signals by the controller for processing and analyzing; when the PCB is placed incorrectly, the controller controls the plurality of adjusting devices to adjust the angle of the platform 3, so as to adjust the angle of the PCB;

thirdly, horizontally moving any one platform 3 to a printing station on the printing table 1, then driving a rotating shaft and a gear 9 to rotate through a second motor 25, driving the mounting seat 10 and the platform 3 to move up and down to a proper position through the meshing force of the second motor and the rack 11, and moving the printing head 2 to a set position to print the PCB;

when the printing head 2 needs to be cleaned, the motor three 30 drives the screw rod two 31 to rotate, and drives the nut on the screw rod two 31 and the air cylinder 32 to move up and down, the air cylinder 32 drives the cleaning table 17 to move horizontally, and meanwhile, the spray head 19 sprays water to clean the printing head 2.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A PCB character ink jet printer characterized in that: the printing device comprises a printing table (1) and a printing head (2), wherein the printing head (2) is erected on the printing table (1) and can horizontally move left and right; a plurality of platforms (3) for placing the PCB are arranged on the printing table (1) and can horizontally move back and forth; horizontally moving any one of the platforms (3) to a printing station on the printing table (1), and then horizontally moving the printing head (2) to the position above the corresponding platform (3) for printing.

2. The PCB character inkjet printer of claim 1, wherein: the PCB placing device is characterized by further comprising a controller and a detecting device used for detecting whether the PCB placing device on the platform (3) is correct or not, wherein an adjusting device used for adjusting the position of the adjusting device is installed at the bottom of the platform (3), and the detecting device and the adjusting devices are in communication connection with the controller respectively.

3. The PCB character inkjet printer of claim 2, wherein: the detection device comprises at least one camera (4), the camera (4) is in communication connection with the controller, the front and back of the camera (4) horizontally moves and is erected on the printing table (1) and can move up and down, and the platforms (3) are located below the camera (4).

4. The PCB character inkjet printer of claim 2, wherein: each adjusting device comprises a base (5) and a fixing plate (6), and the base (5) is horizontally arranged on the printing table (1) in a front-back moving mode; a plurality of adjusting mechanisms are uniformly installed on the base (5) at intervals, and the fixing plate (6) is horizontally and fixedly installed on the adjusting mechanisms; the platform (3) is horizontally arranged on the fixed plate (6) and can move up and down.

5. The PCB character inkjet printer of claim 4, wherein: each adjusting mechanism comprises two sliding blocks (7), wherein one sliding block (7) is horizontally and slidably arranged on the base (5), the other sliding block (7) is horizontally and slidably arranged on one sliding block (7), and the sliding directions of the two sliding blocks (7) are perpendicular to each other; the fixed plate (6) is fixedly arranged on the other sliding block (7).

6. The PCB character inkjet printer of claim 4, wherein: the number of the adjusting mechanisms is four, and the four adjusting mechanisms are distributed between the base (5) and the fixing plate (6) in a square shape; the adjusting device further comprises at least three groups of driving assemblies (8) which are respectively used for driving the adjusting mechanism to operate, and the at least three groups of driving assemblies (8) are respectively in communication connection with the controller.

7. The PCB character inkjet printer of claim 4, wherein: the platforms (3) are arranged at intervals from top to bottom in the vertical direction and can move up and down; an opening penetrating up and down is formed in the fixed plate (6), and a gear (9) is horizontally and rotatably arranged below the fixed plate (6); the platform (3) is horizontally and fixedly arranged on an installation seat (10), the lower end of the installation seat (10) downwards penetrates through the opening and extends to the position below the opening, a rack (11) is vertically and fixedly arranged on the installation seat, and the rack (11) is meshed with the gear (9); the gear (9) is rotated, and the mounting seat (10) and the platform (3) are driven to move up and down through the meshing force of the gear and the rack (11).

8. The PCB character inkjet printer of any one of claims 2-7, wherein: a warpage detection device for detecting the flatness of a PCB to be printed is erected at a position, above the moving track of the platform (3), on the printing table (1), and comprises a mounting plate (12) and at least one scraping blade (13), wherein the mounting plate (12) can move up and down and is erected on the printing table (1) in a positioning manner; the scraping blade (13) is rotatably arranged on the mounting plate (12) in the front-back direction, a detection plate (14) is fixedly connected onto the scraping blade, and one end of the detection plate (14) extends towards the mounting plate (12) and is provided with a through hole (15); the mounting plate (12) is fixedly provided with at least one group of sensor groups which correspond to the scraping blades (13) one by one, each group of sensor groups comprises two opposite photoelectric sensors (16), the two photoelectric sensors (16) are relatively and fixedly mounted on the mounting plate (12), and the photoelectric sensors (16) for receiving light are in communication connection with the controller; one end of the detection plate (14) extends to a position between the two photoelectric sensors (16).

9. The PCB character inkjet printer of any one of claims 1-7, wherein: a cleaning device for cleaning the printing head (2) is also fixedly arranged on the printing table (1), and the cleaning device is positioned below the printing head (2); the cleaning device comprises a cleaning table (17), wherein the cleaning table (17) is horizontally arranged on the printing table (1) in a vertically movable mode and can horizontally move back and forth; fixed mounting has on wash platform (17) with beat printer head (2) complex flexible circle (18), lie in on wash platform (17) the position interval in flexible circle (18) is installed at least one shower nozzle and at least one scraper (19) that can spout the cleaning fluid beat printer head (2) and go up the spot, the shower nozzle with scraper (19) interval sets up.

10. The PCB character inkjet printer of any one of claims 1-7, wherein: each platform (3) is internally provided with at least one vacuum cavity respectively, and the vacuum cavities are communicated with a vacuum device on the printing table (1) through hoses; the upper surface of the platform (3) is provided with a plurality of adsorption holes (20) communicated with the vacuum cavity.

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