CN117087315A

CN117087315A - Full-automatic silk screen printing machine

Info

Publication number: CN117087315A
Application number: CN202211496398.3A
Authority: CN
Inventors: 许立峰; 肖锋; 谭轻
Original assignee: Shenzhen Nuofeng Photoelectric Equipment Co Ltd
Current assignee: Shenzhen Nuofeng Photoelectric Equipment Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-11-21

Abstract

The invention discloses a full-automatic silk screen printing machine which comprises a rotary table, a material taking and placing and carrying arm, a code scanning rotating mechanism, a CCD (charge coupled device) detecting mechanism, a silk screen printing mechanism, a cleaning mechanism and a material throwing platform, wherein the rotary table is horizontally and rotatably arranged on the machine table, and a feeding and discharging station, a first detecting station, a silk screen printing station, a second detecting station and a material throwing station are arranged on the periphery of the rotary table; the material taking and discharging moving arm and the code sweeping and rotating mechanism are respectively arranged at two sides of the material loading and unloading station at intervals; the CCD detection mechanism comprises two groups which are respectively arranged at a first detection station and a second detection station; the screen printing mechanism is arranged at the screen printing station, and the cleaning mechanism is arranged at the outer side of the screen printing mechanism; the material throwing platform is arranged at the material throwing station. The invention adopts a rotary disc type transmission mode to automatically realize material taking and discharging, rotary code scanning, surface detection, high-adaptive silk screen printing, defective product detection, automatic cleaning of a screen plate and automatic material throwing.

Description

Full-automatic silk screen printing machine

Technical Field

The invention relates to the field of screen manufacturing, in particular to a full-automatic screen printing machine for automatic screen printing on the surface of a screen.

Background

The screen is a common optical component, is widely applied to various electronic products, such as common smart phones, smart watches, tablet computers, computer display screens, television screens and the like, and with the continuous increase of market demands of the electronic products, the global market of screen manufacturing is rapidly expanded, domestic manufacturers are always influenced by 'lack of cores and lack of screens' for many years, and with the importance of national multi-screen manufacturing and the adjustment of related industrial policies, the problem of screen manufacturing is gradually improved, and at present, the domestic is an important screen manufacturing base.

The screen production and assembly are required to be solved at present, and the conventional manual production is replaced by an automatic production line, so that the screen production and assembly are trends of future development. In the screen manufacturing process, surface finishing is an important process, such as screen surface silk screen printing, and the like, so as to realize printing of a required pattern on the screen surface. When the screen silk-screen processing technology is carried out, the following technical problems need to be solved: 1. the existing screen printing equipment generally adopts a single machine mode, cannot carry out batch processing, has low production capacity and efficiency, cannot adapt to the integration requirement of the existing automatic production line, and needs to solve the problems of automatic feeding and automatic screen printing connection of a screen in the design process of the screen printing automatic production line; 2. in the integrated design process of the screen printing automatic production line, each screen is provided with a two-dimensional code so as to realize production traceability, so that the screen code scanning problem is solved before screen printing; 3. in addition, the screen silk-screen process comprises the actions of taking and discharging materials, scanning codes, CCD detection, silk-screen printing, defective product screening and the like, so that a screen transmission mode is required to be designed, and the problem that the screen finishes the procedure actions in the automatic transmission process is solved; 4. in the automatic screen transmission process, the automatic screen printing problem on the surface of the screen needs to be solved, and meanwhile, in the actual production process, the height real-time adjustment problem between the screen printing platform and the screen printing head needs to be solved because the thickness and the size of different screens are different; 5. in the silk screen printing process, after the printing ink is scraped once by a silk screen printing head, the condition of different thickness uniformity often occurs, so that the problem of ink return in the silk screen printing process also needs to be solved; 6. in the silk screen printing process, solidified ink can be accumulated on a silk screen printing screen plate used for a long time, and the accumulated ink can influence the quality of the next silk screen printing, so that the problem of automatic cleaning of residual ink of the screen plate in the silk screen printing process needs to be solved; 7. defective products generated in the silk screen printing process need to be stored in a centralized mode, so that the problem of automatic material throwing of the defective products is solved in the automatic silk screen printing integrated design process.

Disclosure of Invention

The invention aims to solve the technical problems of the prior art, and provides a full-automatic screen printing machine which adopts a turntable type transmission mode to automatically realize material taking and discharging, rotary code scanning, surface detection, highly self-adaptive screen printing, defective product detection, screen automatic cleaning and automatic material throwing.

The technical scheme adopted by the invention is as follows: the full-automatic screen printing machine comprises a turntable, a material taking and discharging carrying arm, a code scanning rotating mechanism, a CCD (charge coupled device) detecting mechanism, a screen printing mechanism, a cleaning mechanism and a material throwing platform, wherein the turntable is horizontally and rotatably arranged on a machine table, and a feeding and discharging station, a first detecting station, a screen printing station, a second detecting station and a material throwing station are arranged on the periphery of the turntable; the material taking and discharging moving arm and the code sweeping and rotating mechanism are respectively arranged at two sides of the material loading and unloading station at intervals; the CCD detection mechanism comprises two groups which are respectively arranged at a first detection station and a second detection station; the screen printing mechanism is arranged at the screen printing station, and the cleaning mechanism is arranged at the outer side of the screen printing mechanism; the material throwing platform is arranged at the material throwing station.

Preferably, the material taking and placing moving arm comprises a material taking and placing support, a first driving motor, a connecting swing rod, a second driving motor, a material taking rotating shaft and a material taking frame, wherein the material taking and placing support is horizontally arranged on the machine table; the first driving motor is arranged on the material taking support; one end of the connecting swing rod is connected with the output shaft of the first driving motor and horizontally extends; the second driving motor is arranged at the upper part of the other end of the connecting swing rod; the material taking rotating shaft is rotatably arranged in the second driving motor and is connected with an output shaft of the second driving motor; the material taking frame is of a U-shaped frame body structure, a material taking groove is arranged on the side part of the material taking frame, and vacuum suction holes are formed in a supporting block at the bottom of the material taking groove so as to adsorb and fix a screen in the material taking groove; the material taking frame is arranged on a correction platform arranged at the material taking and placing station after taking out the screen from the material conveying mechanism, and the screen is arranged on the turntable after the correction platform corrects the position of the screen.

Preferably, the code scanning rotating mechanism comprises a code scanning support, a code scanning rotating motor, a code scanning rotating support plate and a material sucking seat, wherein the code scanning support is vertically arranged on the machine table, and the upper part of the code scanning support transversely and horizontally extends to the position above the material taking and discharging station; the code scanning rotating motor is vertically arranged at the transverse horizontal extension part of the upper part of the code scanning support, and the output end of the code scanning rotating motor is downward; the code scanning rotary support plate is horizontally connected to the output end of the code scanning rotary motor, and the code scanning rotary motor drives the code scanning rotary support plate to rotate; the material sucking seat comprises two material sucking seats, the material sucking seats are horizontally connected to the end parts of the code scanning rotary support plates, and vacuum suction holes are distributed on the material sucking seats so as to adsorb a screen.

Preferably, the CCD detection mechanism comprises a detection bracket, a CCD lens, a dust removal pipe and a dust removal flat nozzle, wherein the detection bracket is arranged at a first detection station and a second detection station; the CCD lenses are vertically arranged on the detection bracket, and the directions of the lenses are downward; the upper end of the dust removing pipe is connected to the top of the detection bracket and extends downwards to the lower part of the CCD lens; the dust removing flat nozzle is connected to the lower end of the dust removing pipe, and the nozzle is arranged towards the direction of the first detection station or the second detection station.

Preferably, the silk-screen mechanism comprises a silk-screen driving assembly, a silk-screen head, a silk-screen platform and a silk-screen jacking assembly, wherein the silk-screen driving assembly is arranged on the machine platform and is positioned above the turntable; the silk screen printing head is connected to the output end of the silk screen printing driving assembly, and is driven by the silk screen printing driving assembly to move horizontally and linearly; the screen printing platform is horizontally connected to the screen printing driving assembly and is positioned between the screen printing assembly and the turntable, and the screen printing assembly moves in the screen printing platform to screen-print the printing ink on the screen on the turntable; the silk screen jacking component is arranged below the turntable, and the output end of the silk screen jacking component is upwards arranged and connected with the silk screen platform so as to drive the silk screen platform to move up and down.

Preferably, the silk-screen driving assembly comprises a silk-screen bracket, a silk-screen driving motor and a silk-screen driving belt; a transmission space is arranged in the silk-screen printing bracket; the silk-screen driving belt is arranged in the transmission space; the silk-screen driving motor is arranged on the rear side wall of the silk-screen bracket, and an output shaft penetrates through the side wall of the silk-screen bracket to be connected with the silk-screen driving belt and drive the silk-screen driving belt to move; the silk screen printing head is connected to the silk screen printing support in a sliding mode along the horizontal direction and is connected with the silk screen printing driving belt, and the silk screen printing driving belt drives the silk screen printing head to move horizontally and linearly.

Preferably, the silk-screen printing platform comprises two connecting seats, a silk-screen printing screen plate, a platform cylinder and platform locking nuts, wherein the two connecting seats are respectively connected to two support plates horizontally extending from the bottom of the silk-screen printing support, and the inner side walls of the connecting seats are provided with mounting notches; the silk screen plate is horizontally arranged in the mounting notch of the two connecting seats, and silk screen grooves are formed in the silk screen plate; the platform air cylinders are vertically arranged on the connecting seat, and the output ends of the platform air cylinders vertically extend downwards into the mounting notch and are connected with the screen printing net plate; the platform lock nuts comprise at least two, and the platform lock nuts are vertically arranged on the connecting seat and are connected with the screen printing net plate so as to lock and fix the screen printing net plate.

Preferably, the silk-screen printing head comprises a silk-screen printing seat, a silk-screen printing lifting cylinder, a silk-screen printing lifting seat, an ink scraping component and an ink returning component, wherein the silk-screen printing seat is vertically and movably connected to the silk-screen printing support and is connected with the silk-screen printing driving belt; the silk-screen lifting cylinder is vertically arranged on the side wall of the silk-screen seat; the two silk-screen lifting seats are connected to the side wall of the silk-screen seat in a sliding manner along the vertical direction and are connected with the output end of the silk-screen lifting cylinder; the ink scraping component and the ink returning component are respectively arranged on the two silk-screen lifting seats.

Preferably, the ink scraping component comprises an ink scraping connecting plate, an ink scraping support and an ink scraping plate, wherein the upper end of the ink scraping connecting plate is connected to the silk-screen lifting seat; the ink scraping support is arranged below the ink scraping connecting plate, two ink scraping supporting lugs are arranged on the ink scraping support, and the two ink scraping supporting lugs are arranged at intervals; the lower ends of the ink scraping connecting plates are rotatably connected to the two ink scraping supporting lugs; the lower part of the ink scraping support is provided with an ink scraping installation groove; the ink scraping plate is arranged in the ink scraping installation groove and extends downwards to the lower part of the ink scraping installation groove.

Preferably, the ink return component comprises an ink return connecting plate, an ink return support and an ink return plate, wherein the upper end of the ink return connecting plate is connected to the silk-screen lifting seat; the ink return support is arranged below the ink return connecting plate, two ink return supporting lugs are arranged on the ink return support, and the two ink return supporting lugs are arranged at intervals; the lower ends of the ink return connecting plates are rotatably connected to two ink return supporting lugs; the ink return plate is connected to the bottom of the ink return support and extends downwards to the side of the ink scraping plate.

Preferably, the cleaning mechanism comprises a cleaning support, a cleaning driving assembly, a cleaning rotating assembly and a cleaning assembly, wherein the cleaning support is arranged on the machine table along a linear direction; the cleaning driving assembly is arranged on the cleaning support; the cleaning rotating assembly is connected to the output end of the cleaning driving assembly; the cleaning component is arranged on the output of the cleaning rotating component; the cleaning component is driven to one side of the screen printing screen plate through the cleaning driving component, is driven to rotate to the horizontal direction through the cleaning rotating component, is positioned below the screen printing screen plate, and cleans the bottom surface of the screen printing screen plate through the cleaning roller belt.

The invention has the beneficial effects that:

the invention designs a full-automatic screen printing machine which adopts a turntable type transmission mode to automatically realize material taking and discharging, rotary code scanning, surface detection, highly self-adaptive screen printing, defective product detection, screen automatic cleaning and automatic material throwing aiming at the defects and defects existing in the prior art.

According to the screen silk-screen automatic conveying device, a rotary table rotatably arranged on a machine table is used as an automatic conveying carrier in the screen silk-screen process, a feeding and discharging station, a first detection station, a silk-screen station, a second detection station and a material throwing station are arranged at intervals on the periphery of the rotary table, a material taking and discharging moving arm and a code scanning rotating mechanism are arranged on two sides of the feeding and discharging station, and CCD detection mechanisms are respectively arranged at the first detection station and the second detection station; a silk screen printing mechanism and a cleaning mechanism are arranged at the silk screen printing station, and a material throwing platform is arranged at the material throwing station; the screen lifted by the material conveying mechanism is taken out by the material taking and placing moving arm and then moved to a correction platform arranged below the upper blanking station, the correction platform penetrates through the rotary table to correct the position of the screen, the screen is placed on the material tray, the screen is taken out by the code scanning rotating mechanism and then rotated 180 degrees to the machine station code scanning gun, and the code scanning gun is used for scanning codes, and the code scanning rotating mechanism is used for rotating the screen 180 degrees again and then placing the screen back to the rotary table. The screen after the code scanning is completed is moved to a first detection station through the rotation of the turntable, is detected by the CCD mechanism and then is moved to a screen printing station, and after a screen printing platform of the screen printing mechanism approaches the screen on the turntable from above, the screen printing mechanism scrapes ink on the screen printing platform back and forth to screen print the screen onto the surface of the screen; the screen after silk screen printing is moved to a second detection station, the surface detection is carried out by a CCD mechanism, the detected defective products are moved to a material throwing platform by a material taking and discharging carrying arm at the material throwing station, the materials are thrown by the material throwing platform, the screen of the good products after silk screen printing is transferred back to the upper and lower material working stations, and the material taking and discharging carrying arm is used for moving the defective products again and is placed in a material tray on the material conveying mechanism.

The silk-screen printing mechanism integrally comprises a silk-screen printing driving assembly, a silk-screen printing head, a silk-screen printing platform and a silk-screen printing jacking assembly, wherein the silk-screen printing driving assembly is arranged above a turntable, and the silk-screen printing head is connected to the output end of the silk-screen printing driving assembly and is driven by the silk-screen printing driving assembly to linearly move back and forth on the silk-screen printing platform; the screen printing platform is connected between the support plates horizontally extending from two sides of the lower part of the screen printing support of the screen printing driving assembly and is positioned above the turntable, takes the screen printing net plate as an integral structure, is supported by the connecting seat connected to the two support plates, and is movably arranged in the vertical direction in the mounting notch formed in the side part of the connecting seat; the lifting motion is driven by a platform cylinder arranged at the upper part of the connecting seat; the screen printing screen plate upper portion is equipped with the open silk screen printing groove in top, has deposited printing ink in the silk screen printing groove, and after screen printing screen plate pasted the screen from the top, the silk screen printing head comes rectilinear motion to scrape the printing ink to seal on the screen surface in the silk screen printing groove, accomplishes the silk screen printing, and the while silk screen printing head returns the time with printing ink scraping back the flattening to carry out the silk screen printing of next time, guarantee silk screen printing ink thickness homogeneity, improve silk screen printing quality. The screen printing jacking component is arranged below the turntable, and can drive the screen printing platform to integrally lift and move through the screen printing component so as to adjust the gap space between the screen printing jacking component and the turntable in real time, thereby being suitable for screen printing with different thicknesses.

The silk screen printing head takes a silk screen printing lifting cylinder as a lifting driving component, 2 silk screen printing lifting seats are respectively connected to the output end of the silk screen printing lifting cylinder at intervals, and an ink scraping component and an ink returning component are respectively connected to the two silk screen printing lifting seats, wherein the ink scraping component is connected with the silk screen printing lifting seats through an ink scraping connecting plate, the lower end of the ink scraping connecting plate is rotatably connected with an ink scraping support, the bottom of the ink scraping support is provided with an ink scraping installation groove, and the ink scraping installation groove is internally provided with an ink scraping plate; the ink return component is connected with the silk screen printing lifting seat through an ink return connecting plate, the lower end of the ink return connecting plate is rotatably connected with an ink return support, the bottom of the ink return support is connected with an ink return plate, and the ink return plate extends to the lower part of the ink scraping plate; when in silk printing, the silk printing lifting cylinders drive the two silk printing lifting seats to lift, so that the ink scraping plate of the ink scraping component is close to the silk printing screen plate, the ink returning plate is far away from the silk printing screen plate, the whole ink scraping plate moves linearly, and the ink on the silk printing screen plate is scraped and printed on the screen surface below the silk printing screen plate; after silk screen printing is finished, the ink scraping plate is upwards away from the silk screen plate, the ink returning plate is downwards close to the silk screen plate, when the ink returning plate returns to the starting position along with the straight line of the ink scraping plate, the ink returning plate moves linearly above the silk screen plate, ink is scraped back and leveled, so that the thickness uniformity of the ink in the next silk screen printing is guaranteed, and the silk screen printing quality is improved.

The screen printing machine is also provided with a cleaning mechanism at the screen printing station, so that the problem of ink residue on the surface of the screen plate in the screen printing process is solved; the cleaning mechanism is arranged at the outer side of the screen printing mechanism, the cleaning mechanism integrally takes a cleaning support as a bearing part, and a cleaning driving motor arranged at one side of the cleaning support drives the cleaning support plate to linearly move at the outer side of the screen printing mechanism through a cleaning driving belt so as to realize linear movement from one side of the screen printing screen plate to the other side; the cleaning support drives the rotary cylinder and the rotary seat which are arranged on the cleaning support to synchronously and linearly move; meanwhile, as the upper end of the rotary cylinder is rotatably connected to the cleaning support plate, the lower end of the rotary cylinder is rotatably connected with the rotary seat, when the rotary cylinder outputs power to extend the output shaft of the rotary cylinder, the rotary shaft connected with the upper end of the rotary cylinder is driven to rotate clockwise, and when the rotary shaft rotates, the rotary seat is driven to move to the horizontal direction step by step through the L-shaped connecting plates arranged at the two ends of the rotary shaft until the rotary seat moves to the bottom of the screen plate so as to clean the bottom of the screen plate, and meanwhile, when the screen printing work is carried out, the output shaft of the rotary cylinder reversely contracts, and the connecting plates drive the rotary seat to rotate outwards, so that the condition of interference of the screen printing work is avoided; in addition, a cleaning material receiving roller and a cleaning material roller are rotatably arranged at the bottom of the rotating seat, a cleaning roller belt is tensioned between the cleaning material receiving roller and the cleaning material roller, and when the cleaning material receiving roller is driven to rotate by a roller belt motor arranged at the top of the rotating seat through a cleaning transmission belt, the cleaning roller belt can be continuously pulled out from the cleaning material roller and recovered, so that the cleaning roller belt with residues left after cleaning is recovered, and the cleaning roller belt pulled out from the cleaning material roller is continuously cleaned; when the rotating seat rotates to the lower part of the screen printing screen, the roller belt cylinder arranged between the cleaning material roller and the cleaning material receiving roller drives the roller pushing block to prop against the cleaning roller belt upwards, so that the cleaning roller belt sticks to the bottom of the screen printing screen and can linearly move at the bottom of the screen printing screen to finish cleaning.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a schematic diagram of a second perspective structure of the present invention.

FIG. 3 is a third perspective view of the present invention.

Fig. 4 is a schematic perspective view of the hidden components of the present invention.

FIG. 5 is a schematic diagram showing a second perspective view of the hidden components of the present invention.

FIG. 6 is a third perspective view of the hidden parts of the present invention.

Fig. 7 is a schematic perspective view of a pick-and-place arm according to the present invention.

FIG. 8 is a schematic diagram showing a second perspective structure of the pick-and-place arm according to the present invention.

Fig. 9 is a schematic perspective view of a code scanning rotation mechanism according to the present invention.

FIG. 10 is a schematic diagram showing a second perspective structure of the code scanning rotation mechanism of the present invention.

FIG. 11 is a schematic perspective view of a CCD detection mechanism according to the present invention.

FIG. 12 is a schematic diagram showing a second perspective structure of the CCD detection mechanism of the present invention.

Fig. 13 is a schematic perspective view of a silk screen printing mechanism according to the invention.

Fig. 14 is a schematic diagram showing a second perspective structure of the screen printing mechanism of the present invention.

FIG. 15 is a third perspective view of the screen printing mechanism according to the invention.

Fig. 16 is a schematic perspective view of a screen printing platform according to the invention.

FIG. 17 is a schematic diagram showing a second perspective view of the screen printing platform according to the invention.

Fig. 18 is a schematic perspective view of a silk screen printing head according to the invention.

FIG. 19 is a schematic diagram showing a second perspective view of a screen printing head according to the invention.

FIG. 20 is a third perspective view of the screen printing head according to the invention.

FIG. 21 is a schematic perspective view of a screen printing head according to the invention.

Fig. 22 is a schematic perspective view of a wiping part of the invention.

Fig. 23 is a schematic diagram showing a second perspective view of the ink scraping member of the present invention.

Fig. 24 is a schematic perspective view of an ink return member according to the present invention.

FIG. 25 is a schematic diagram showing a second perspective view of the ink return member of the present invention.

Fig. 26 is a schematic perspective view of a cleaning mechanism according to the present invention.

FIG. 27 is a second perspective view of the cleaning mechanism of the present invention.

FIG. 28 is a third perspective view of the cleaning mechanism of the present invention.

FIG. 29 is a schematic perspective view of a cleaning mechanism according to the present invention.

FIG. 30 is a schematic perspective view of a cleaning assembly according to the present invention.

FIG. 31 is a second perspective view of the cleaning assembly of the present invention.

FIG. 32 is a third perspective view of a cleaning assembly according to the present invention.

FIG. 33 is a schematic perspective view of a cleaning assembly according to the present invention.

Fig. 34 is a schematic perspective view of a material throwing platform according to the present invention.

Fig. 35 is a schematic diagram of a second perspective structure of the material throwing platform of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1 to 35, the technical scheme adopted by the invention is as follows: the full-automatic screen printing machine comprises a rotary table 2, a material taking and placing carrying arm 4, a code scanning rotating mechanism 6, a CCD detection mechanism 7, a screen printing mechanism 8, a cleaning mechanism 11 and a material throwing platform 12, wherein the rotary table 2 is horizontally and rotatably arranged on a machine table 1, and a feeding and discharging station, a first detection station, a screen printing station, a second detection station and a material throwing station are arranged on the periphery of the rotary table 2; the material taking and placing carrying arm 4 and the code sweeping and rotating mechanism 6 are respectively arranged at two sides of the material loading and unloading station at intervals; the CCD detection mechanism 7 comprises two groups which are respectively arranged at a first detection station and a second detection station; the silk-screen mechanism 8 is arranged at the silk-screen station, and the cleaning mechanism 11 is arranged at the outer side of the silk-screen mechanism 8; the material throwing platform 12 is arranged at the material throwing station.

The material taking and placing carrying arm 4 comprises a material taking and placing support 41, a first driving motor 42, a connecting swing rod 43, a second driving motor 43, a material taking rotating shaft 45 and a material taking frame 46, wherein the material taking and placing support 41 is horizontally arranged on the machine table 1; the first driving motor 42 is disposed on the material taking support 41; one end of the connecting swing rod 43 is connected with the output shaft of the first driving motor 42 and horizontally extends; the second driving motor 43 is arranged at the upper part of the other end of the connecting swing rod 43; the material taking rotating shaft 45 is rotatably arranged in the second driving motor 43 and is connected with an output shaft of the second driving motor 43; the material taking frame 46 is of a U-shaped frame body structure, a material taking groove 47 is arranged on the side part of the material taking frame, and vacuum suction holes are formed in support blocks at the bottom of the material taking groove 47 so as to adsorb and fix a screen in the material taking groove 47; the material taking frame 46 is placed on a correction platform 5 arranged at the material taking and placing station after taking out the screen from the material conveying mechanism 3, and the screen is placed on the turntable 2 after the correction platform 5 corrects the position of the screen.

The code scanning rotating mechanism 6 comprises a code scanning support 61, a code scanning rotating motor 62, a code scanning rotating support plate 63 and a material sucking seat 64, wherein the code scanning support 61 is vertically arranged on the machine table 1, and the upper part of the code scanning support 61 transversely and horizontally extends to the position above the material taking and discharging station; the code scanning rotary motor 62 is vertically arranged at the upper transverse horizontal extension part of the code scanning support 61, and the output end of the code scanning rotary motor is downward; the code scanning rotary support plate 63 is horizontally connected to the output end of the code scanning rotary motor 62, and the code scanning rotary motor 62 drives the code scanning rotary support plate 63 to rotate; the material sucking seat 64 comprises two material sucking seats, the material sucking seat 64 is horizontally connected to the end part of the code scanning rotary support plate 63, and vacuum sucking holes are arranged on the material sucking seat 64 so as to adsorb a screen.

The CCD detection mechanism 7 comprises a detection bracket 71, a CCD lens 72, a dust removal pipe 73 and a dust removal flat nozzle 74, wherein the detection bracket 71 is arranged at a first detection station and a second detection station; the CCD lens 72 comprises at least two CCD lenses 72, wherein the CCD lenses 72 are vertically arranged on the detection bracket 71, and the directions of the lenses are downward; the upper end of the dust removing pipe 73 is connected to the top of the detection bracket 71 and extends downwards to the lower part of the CCD lens 72; the dust removing flat nozzle 74 is connected to the lower end of the dust removing pipe 73, and the nozzle is disposed toward the first detection station or the second detection station.

The screen printing mechanism comprises a screen printing driving component, a screen printing head 82, a screen printing platform 83 and a screen printing jacking component, wherein the screen printing driving component is arranged on the machine table and is positioned above the turntable 2; the screen printing head 82 is connected to the output end of the screen printing driving assembly, and is driven by the screen printing driving assembly to move horizontally and linearly; the screen printing platform 83 is horizontally connected to the screen printing driving assembly and is positioned between the screen printing assembly and the turntable 2, and the screen printing assembly moves in the screen printing platform 83 to screen-print the ink on the screen on the turntable 2; the screen printing jacking assembly is arranged below the turntable 2, and the output end of the screen printing jacking assembly is upwards arranged and connected with the screen printing platform 83 so as to drive the screen printing platform 83 to move up and down.

The silk-screen driving assembly comprises a silk-screen bracket 81, a silk-screen driving motor and a silk-screen driving belt; a transmission space is arranged in the silk-screen bracket 81; the silk-screen driving belt is arranged in the transmission space; the silk-screen driving motor is arranged on the rear side wall of the silk-screen bracket 81, and an output shaft penetrates through the side wall of the silk-screen bracket 81 to be connected with the silk-screen driving belt and drive the silk-screen driving belt to move; the screen printing head 82 is slidably connected to the screen printing support 81 in the horizontal direction, and is connected to a screen printing driving belt, and the screen printing driving belt drives the screen printing head 82 to move linearly in the horizontal direction.

The screen printing platform 83 comprises two connecting seats 831, a screen printing net plate 833, a platform cylinder 835 and platform locking nuts 836, wherein the two connecting seats 831 are respectively connected to two horizontally extending support plates at the bottom of the screen printing support 81, and the inner side walls of the connecting seats 831 are provided with mounting notches 832; the screen plate 833 is horizontally arranged in the installation notch 832 of the two connecting seats 831, and the screen plate 833 is provided with a screen slot 834; the platform air cylinders 835 comprise two, wherein the platform air cylinders 835 are vertically arranged on the connecting seat 831, and the output end of each platform air cylinder extends vertically downwards into the mounting notch 832 and is connected with the screen printing net plate 833; the platform lock nuts 836 include at least two, and the platform lock nuts 836 are vertically disposed on the connection base 831 and connected to the screen plate 833 so as to lock and fix the screen plate 833.

The screen printing head 82 comprises a screen printing base 821, a screen printing lifting cylinder 822, a screen printing lifting base 823, an ink scraping component 824 and an ink returning component 825, wherein the screen printing base 821 is vertically and movably connected to the screen printing support 81 and is connected with a screen printing driving belt; the screen printing lifting cylinder 822 is vertically arranged on the side wall of the screen printing seat 823; the two silk-screen lifting seats 823 are included, and the two silk-screen lifting seats 823 are slidably connected to the side wall of the silk-screen seat 821 along the vertical direction and are connected with the output end of the silk-screen lifting cylinder 822; the scraping member 824 and the ink returning member 825 are respectively disposed on the two screen elevating seats 823.

The ink scraping component 824 comprises an ink scraping connecting plate 8241, an ink scraping support 8243 and an ink scraping plate 8245, wherein the upper end of the ink scraping connecting plate 8241 is connected to the silk-screen lifting seat 823; the ink scraping support 8243 is arranged below the ink scraping connecting plate 8241, two ink scraping supporting lugs 8242 are arranged on the ink scraping support 8243, and the two ink scraping supporting lugs 8242 are arranged at intervals; the lower ends of the scraping connecting plates 8241 are rotatably connected to two scraping supporting lugs 8242; a scraping installation groove 8244 is arranged at the lower part of the scraping support 8243; the above-described wiper plate 8245 is disposed in the wiper mounting groove 8244 and extends downward below the wiper mounting groove 8244.

The ink return component 825 comprises an ink return connecting plate 8251, an ink return support 8253 and an ink return plate 8254, wherein the upper end of the ink return connecting plate 8251 is connected to the silk-screen lifting seat 823; the ink return support 8253 is arranged below the ink return connecting plate 8251, two ink return supporting lugs 8252 are arranged on the ink return support 8253, and the two ink return supporting lugs 8252 are arranged at intervals; the lower end of the ink return connecting plate 8251 is rotatably connected to two ink return supporting lugs 8252; the ink return plate 8254 is attached to the bottom of the ink return support 8253 and extends downward to the side of the wiper plate 8245.

The cleaning mechanism 11 comprises a cleaning support 111, a cleaning driving assembly, a cleaning rotating assembly and a cleaning assembly, wherein the cleaning support 111 is arranged on the machine 1 along a linear direction; the above-described cleaning drive assembly is provided on the cleaning support 111; the cleaning rotating assembly is connected to the output end of the cleaning driving assembly; the cleaning component is arranged on the output of the cleaning rotating component; the cleaning component is driven to one side of the screen printing screen plate through the cleaning driving component, is driven to rotate to the horizontal direction through the cleaning rotating component, is positioned below the screen printing screen plate, and cleans the bottom surface of the screen printing screen plate through the cleaning roller belt.

As shown in fig. 26 to 33, which are schematic perspective views of the cleaning mechanism 11 according to the present invention, the cleaning driving assembly includes a cleaning driving motor 112, a cleaning driving belt 113 and a cleaning support 114, wherein the cleaning driving motor 112 is disposed at a side portion of the cleaning support 111; the cleaning driving belt 113 is arranged on the side wall of the cleaning support 111, and is tensioned by a tensioning wheel, and the cleaning driving motor 112 drives the cleaning driving belt 113 to move; the cleaning support plate 114 is slidably connected to the side wall of the cleaning support 111, and is connected to the cleaning driving belt 113, and the cleaning driving belt 113 drives the cleaning support plate 114 to move linearly; the cleaning rotating assembly comprises a rotating support lug 115, a rotating cylinder 116, a rotating connecting plate 117 and a rotating seat 118, wherein the rotating support lug 115 comprises two rotating support lugs which are respectively arranged at the upper part of the side wall of the cleaning support plate 114 at intervals in parallel, and a rotating shaft is arranged between the two cleaning support plates 114; the output shaft of the rotary cylinder 116 extends upwards, and the top of the output shaft is connected with the rotating shaft; the rotating seat 118 is disposed below the rotating cylinder 116 and is rotatably connected to the rotating cylinder 116; the rotating connecting plates 117 are of an L-shaped structure, the rotating connecting plates 117 comprise two rotating connecting plates 117, the tops of the two rotating connecting plates 117 are respectively fixed at two ends of the rotating shaft, and the bottoms of the rotating connecting plates 117 are fixed on the rotating seat 118; the cleaning assembly includes a roller belt 119, a cleaning belt 1110, a cleaning receiving roller 1111, a cleaning roller 1112, a cleaning roller belt 1113, a roller belt cylinder 1114 and a pushing block 1115, wherein the cleaning receiving roller 1111 and the cleaning roller 1112 are rotatably disposed at the bottom of the rotating base 118, respectively; the roller belt motor 119 is disposed at the top of the rotary seat 118, and the output shaft is connected with the rotating shaft of the cleaning and receiving roller 1111 through the cleaning driving belt 1110, so as to drive the cleaning and receiving roller 1111 to rotate; the cleaning roller belt 1113 is wound around the cleaning roller 1112, the outer end of the cleaning roller belt 1113 is connected to the cleaning take-up roller 1111, and the cleaning roller belt 1113 is pulled out and wound around the side portion of the cleaning take-up roller 1111 when the cleaning take-up roller 1111 rotates; the roller belt cylinder 1114 is provided between the cleaning take-up roller 1111 and the cleaning roller 1112, and the output end is provided toward the cleaning roller belt 1113; the push roller block 1115 is disposed at the output end of the roller belt cylinder 1114, and one side of the push roller block 1113 facing the cleaning roller belt 1113 is in a cambered surface structure, and the roller belt cylinder 1114 drives the push roller block 1113 to prop against the cleaning roller belt 1113 outwards, so that the cleaning roller belt 1113 is close to the screen plate 833, so as to clean the screen plate 833.

As shown in fig. 34 to 35, which are schematic perspective views of a material throwing platform 12 according to the present invention, the material throwing platform 12 according to the present invention includes a material throwing support, a material throwing cylinder 121, a cylinder push rod 122, and a material throwing support 123, wherein the material throwing support is horizontally disposed; the material throwing cylinder 121 is arranged at the bottom of the material throwing support; the cylinder push rod 122 is arranged on the material throwing support and is connected with the output end of the material throwing support; the material throwing support 123 is connected to the cylinder push rod 122 and moves linearly along with the cylinder push rod 122, so as to take the detected defective product screen from the turntable and throw the defective product screen.

Furthermore, the invention designs a full-automatic screen printing machine which adopts a turntable type transmission mode to automatically realize material taking and discharging, rotary code scanning, surface detection, highly self-adaptive screen printing, defective product detection, automatic screen plate cleaning and automatic material throwing.

The examples of the present invention are presented only to describe specific embodiments thereof and are not intended to limit the scope of the invention. Certain modifications may be made by those skilled in the art in light of the teachings of this embodiment, and all equivalent changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A full-automatic silk screen printing machine, its characterized in that: the device comprises a rotary table (2), a material taking and discharging carrying arm (4), a code scanning rotating mechanism (6), a CCD detection mechanism (7), a screen printing mechanism (8), a cleaning mechanism (11) and a material throwing platform (12), wherein the rotary table (2) is horizontally and rotatably arranged on a machine table (1), and a feeding and discharging station, a first detection station, a screen printing station, a second detection station and a material throwing station are arranged on the periphery of the rotary table (2); the material taking and placing moving arm (4) and the code sweeping rotating mechanism (6) are respectively arranged at two sides of the material loading and unloading station at intervals; the CCD detection mechanism (7) comprises two groups which are respectively arranged at a first detection station and a second detection station; the silk-screen mechanism (8) is arranged at the silk-screen station, and the cleaning mechanism (11) is arranged at the outer side of the silk-screen mechanism (8); the material throwing platform (12) is arranged at the material throwing station.

2. The fully automatic screen printing machine according to claim 1, wherein: the material taking and placing moving arm (4) comprises a material taking and placing support (41), a first driving motor (42), a connecting swing rod (43), a second driving motor (43), a material taking rotating shaft (45) and a material taking frame (46), wherein the material taking and placing support (41) is horizontally arranged on the machine table (1); the first driving motor (42) is arranged on the material taking support (41); one end of the connecting swing rod (43) is connected with the output shaft of the first driving motor (42) and horizontally extends; the second driving motor (43) is arranged at the upper part of the other end of the connecting swing rod (43); the material taking rotating shaft (45) is rotatably arranged in the second driving motor (43) and is connected with an output shaft of the second driving motor (43); the material taking frame (46) is of a U-shaped frame body structure, a material taking groove (47) is arranged on the side part of the material taking frame, and vacuum suction holes are formed in support blocks at the bottom of the material taking groove (47) so as to adsorb and fix a screen in the material taking groove (47); the material taking frame (46) is arranged on a correction platform (5) arranged at a material taking and placing station after a screen is taken out from the material conveying mechanism (3), and the screen is arranged on the rotary table (2) after the screen position is corrected by the correction platform (5).

3. A fully automatic screen printing machine according to claim 2, wherein: the code scanning rotating mechanism (6) comprises a code scanning support (61), a code scanning rotating motor (62), a code scanning rotating support plate (63) and a material sucking seat (64), wherein the code scanning support (61) is vertically arranged on the machine table (1), and the upper part of the code scanning support (61) transversely and horizontally extends to the position above the material taking and discharging station; the code scanning rotating motor (62) is vertically arranged at the transverse horizontal extension part of the upper part of the code scanning support (61), and the output end of the code scanning rotating motor is downward; the code scanning rotary support plate (63) is horizontally connected to the output end of the code scanning rotary motor (62), and the code scanning rotary motor (62) drives the code scanning rotary support plate (63) to rotate; the material sucking seat (64) comprises two material sucking seats, the material sucking seat (64) is horizontally connected to the end part of the code scanning rotary support plate (63), and vacuum sucking holes are arranged on the material sucking seat (64) so as to adsorb a screen.

4. A fully automatic screen printing machine according to claim 3, wherein: the CCD detection mechanism (7) comprises a detection bracket (71), a CCD lens (72), a dust removal pipe (73) and a dust removal flat nozzle (74), wherein the detection bracket (71) is arranged at a first detection station and a second detection station; the CCD lenses (72) comprise at least two CCD lenses (72), the CCD lenses (72) are vertically arranged on the detection bracket (71), and the directions of the lenses are downward; the upper end of the dust removing pipe (73) is connected to the top of the detection bracket (71) and extends downwards to the lower part of the CCD lens (72); the dust removing flat nozzle (74) is connected to the lower end of the dust removing pipe (73), and the nozzle is arranged towards the direction of the first detection station or the second detection station.

5. The fully automatic screen printing machine according to claim 4, wherein: the silk-screen mechanism comprises a silk-screen driving assembly, a silk-screen head (82), a silk-screen platform (83) and a silk-screen jacking assembly, wherein the silk-screen driving assembly is arranged on the machine table and is positioned above the turntable (2); the silk screen printing head (82) is connected to the output end of the silk screen printing driving assembly, and is driven by the silk screen printing driving assembly to move horizontally and linearly; the silk-screen printing platform (83) is horizontally connected to the silk-screen printing driving assembly and is positioned between the silk-screen printing assembly and the rotary table (2), and the silk-screen printing assembly moves in the silk-screen printing platform (83) to silk-screen ink on a screen on the rotary table (2); the silk screen jacking component is arranged below the turntable (2), and the output end of the silk screen jacking component is upwards arranged and connected with the silk screen platform (83) so as to drive the silk screen platform (83) to move up and down.

6. The fully automatic screen printing machine according to claim 5, wherein: the silk-screen driving assembly comprises a silk-screen bracket (81), a silk-screen driving motor and a silk-screen driving belt; a transmission space is arranged in the silk-screen support (81); the silk-screen driving belt is arranged in the transmission space; the silk-screen driving motor is arranged on the rear side wall of the silk-screen bracket (81), and an output shaft penetrates through the side wall of the silk-screen bracket (81) to be connected with the silk-screen driving belt and drive the silk-screen driving belt to move; the silk screen printing head (82) is connected to the silk screen printing support (81) in a sliding mode along the horizontal direction and is connected with the silk screen printing driving belt, and the silk screen printing driving belt drives the silk screen printing head (82) to move linearly in the horizontal direction.

7. The fully automatic screen printing machine of claim 6, wherein: the silk-screen printing platform (83) comprises two connecting seats (831), a silk-screen printing net plate (833), a platform cylinder (835) and a platform locking nut (836), wherein the two connecting seats (831) are respectively connected to two support plates horizontally extending from the bottom of the silk-screen printing support (81), and the inner side wall of the connecting seat (831) is provided with a mounting notch (832); the screen printing screen plate (833) is horizontally arranged in the mounting notch (832) of the two connecting seats (831), and a screen printing groove (834) is formed in the screen printing screen plate (833); the platform air cylinders (835) comprise two, the platform air cylinders (835) are vertically arranged on the connecting seat (831), and the output ends vertically extend downwards into the mounting notch (832) and are connected with the screen printing net plate (833); the platform lock nuts (836) include at least two, and the platform lock nuts (836) are vertically disposed on the connecting base (831) and connected with the screen printing screen (833) so as to lock and fix the screen printing screen (833).

8. The fully automatic screen printing machine of claim 7, wherein: the silk screen printing head (82) comprises a silk screen printing seat (821), a silk screen printing lifting cylinder (822), a silk screen printing lifting seat (823), an ink scraping component (824) and an ink returning component (825), wherein the silk screen printing seat (821) is vertically and movably connected to the silk screen printing support (81) and is connected with a silk screen printing driving belt; the silk screen lifting cylinder (822) is vertically arranged on the side wall of the silk screen seat (823); the silk-screen lifting seats (823) comprise two silk-screen lifting seats (823) which are slidably connected to the side walls of the silk-screen seats (821) along the vertical direction and are connected with the output ends of the silk-screen lifting cylinders (822); the ink scraping component (824) and the ink returning component (825) are respectively arranged on the two silk-screen lifting seats (823).

9. The fully automatic screen printing machine of claim 8, wherein: the ink scraping component (824) comprises an ink scraping connecting plate (8241), an ink scraping support (8243) and an ink scraping plate (8245), wherein the upper end of the ink scraping connecting plate (8241) is connected to the silk-screen lifting seat (823); the ink scraping support (8243) is arranged below the ink scraping connecting plate (8241), two ink scraping supporting lugs (8242) are arranged on the ink scraping support (8243), and the two ink scraping supporting lugs (8242) are arranged at intervals; the lower end of the scraping connecting plate (8241) is rotatably connected to two scraping supporting lugs (8242); a scraping installation groove (8244) is arranged at the lower part of the scraping support (8243); the wiper (8245) is disposed in the wiper mounting groove (8244) and extends downward below the wiper mounting groove (8244).

10. The fully automatic screen printing machine of claim 9, wherein: the ink return component (825) comprises an ink return connecting plate (8251), an ink return support (8253) and an ink return plate (8254), wherein the upper end of the ink return connecting plate (8251) is connected to the silk-screen lifting seat (823); the ink return support (8253) is arranged below the ink return connecting plate (8251), two ink return supporting lugs (8252) are arranged on the ink return support (8253), and the two ink return supporting lugs (8252) are arranged at intervals; the lower end of the ink return connecting plate (8251) is rotatably connected to two ink return supporting lugs (8252); the ink return plate (8254) is connected to the bottom of the ink return support (8253) and extends downward to the side of the ink scraping plate (8245).

11. The fully automatic screen printing machine of claim 10, wherein: the cleaning mechanism (11) comprises a cleaning support (111), a cleaning driving assembly, a cleaning rotating assembly and a cleaning assembly, wherein the cleaning support (111) is arranged on the machine table (1) along the linear direction; the cleaning driving assembly is arranged on the cleaning support (111); the cleaning rotating assembly is connected to the output end of the cleaning driving assembly; the cleaning component is arranged on the output of the cleaning rotating component; the cleaning component is driven to one side of the screen printing screen plate through the cleaning driving component, is driven to rotate to the horizontal direction through the cleaning rotating component, is positioned below the screen printing screen plate, and cleans the bottom surface of the screen printing screen plate through the cleaning roller belt.