Screen printing detection mechanism and screen printing equipment

Abstract

The utility model provides a silk screen detection mechanism, including information acquisition module, collection bin, detection table and movable cylinder, detection table and collection bin both are provided on the work table top, information acquisition module includes the support frame fixed on the detection table, one end of support frame is connected with detection camera, and the other end of support frame is connected with the movable cylinder. A detection station for placing a screen tempered film is arranged on the detection table, a lens of the detection camera right faces the detection station, a conveying belt is arranged on one side of the screen printing detection mechanism, the movable air cylinder is arranged on one side of the conveying belt, the output end of the movable air cylinder is connected with a first telescopic air cylinder, and the output end of the first telescopic air cylinder is connected with a mounting block. A plurality of groups of suction nozzles are arranged on the mounting block and are used for conveying the screen tempered film between the detection station and the collection bin. The silk-screen detection mechanism disclosed by the utility model can be used for detecting and sorting screen-printed mobile phone screen tempered films one by one, so that the overall production efficiency is improved, and the silk-screen detection mechanism is relatively high in practicability. The utility model further discloses screen printing equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of screen tempered film screen printing, and specifically, to a screen printing detection mechanism and screen printing equipment. Background Art

[0002] A screen printer is a device that uses screen printing to perform screen printing on screen tempered films. After the screen tempered film is printed, generally, in order to determine whether there are problems such as light leakage or screen printing depth in the current screen-printed product, it needs to be inspected. When the existing screen-printed products are being detected, generally, workers manually detect each screen tempered film of the mobile phone screen one by one. However, when workers use their eyes to judge the printing accuracy, not only is the efficiency low, but also the normal judgment will be affected due to the error of the human eyes. Moreover, the screen-printed products after screen printing need to be transported to the quality inspection line for manual detection and sorting, which costs a lot of manpower and material resources. Among them, during transportation, they will also be affected by factors such as contact with external dust or bumps, and the practicability is insufficient. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a screen printing detection mechanism, which can detect each screen tempered film of the mobile phone screen after screen printing, and can separate the qualified products and unqualified products after detection in the screen printing equipment, improve the overall production efficiency, and has strong practicability.

[0004] The technical solution adopted by the screen printing detection mechanism disclosed by the utility model is as follows:

[0005] The screen printing detection mechanism includes an information acquisition module, a collection bin, a detection table, and a movable air cylinder. The detection table and the collection bin are both arranged on the workbench surface. The information acquisition module includes a support frame fixed on the detection table. One end of the support frame is connected with a detection camera. A detection station for placing the screen tempered film is arranged on the detection table. The lens of the detection camera faces the detection station directly. A conveyor belt is arranged on one side of the screen printing detection mechanism. The movable air cylinder is arranged on one side of the conveyor belt. The output end of the movable air cylinder is connected with a first telescopic air cylinder. The output end of the first telescopic air cylinder is connected with a mounting block. Multiple groups of suction nozzles are arranged on the mounting block. The suction nozzles are used to transport the screen tempered film between the detection station and the collection bin.

[0006] The beneficial effects of the screen printing detection mechanism disclosed by the present utility model are as follows: The tempered glass screen after screen printing is placed on the detection station for detection. After the detection camera finishes taking pictures for detection, the qualified products will be conveyed onto the conveyor belt, and then the staff can take out the qualified products for packaging. The unqualified products will be adsorbed into the collection bin by the suction nozzle for collection. After the equipment stops running, the staff can take out the unqualified products. The overall operation is integrated, without the need to transport to other places for detection, which can save a large amount of manpower and material resources and has strong practicability.

[0007] The purpose of the present utility model is to provide a screen printing device, which can convey, position, clean, screen print and detect the tempered glass screen, and the whole device has a compact structure and small occupied space. All steps are completed in one device, and it can be operated with not too many staff, which can save manpower and material resources.

[0008] The technical solution adopted by the screen printing device disclosed by the present utility model is:

[0009] The screen printing device includes the above-mentioned screen printing detection mechanism.

[0010] As a preferred solution, the screen printing device further includes a frame, a conveying mechanism, a feeding mechanism, a screen printing mechanism and a cleaning mechanism. The feeding mechanism is arranged on one side of the frame. The conveying mechanism is horizontally arranged on the frame. Both ends of the conveying mechanism are respectively provided with a feeding station and a printing station. One end of the feeding station is arranged beside the feeding mechanism. The screen printing mechanism is arranged above the printing station. The screen printing mechanism moves closer to or away from the printing station longitudinally. The cleaning mechanism is arranged between the feeding station and the printing station.

[0011] As a preferred solution, the conveying mechanism includes a placement table, a sliding guide rail and a positioning component. The placement table is slidably arranged on the sliding guide rail. The positioning component includes a second telescopic cylinder. The second telescopic cylinder is fixed on the side surface of the placement table. The output end of the second telescopic cylinder is connected with multiple groups of stoppers. Multiple groups of notches are arranged on the surface of the placement table. The stoppers move in the notches through the second telescopic cylinder. The cleaning mechanism is arranged above the placement table.

[0012] As a preferred solution, the cleaning mechanism includes a mounting plate, a dust removal roller, a dust sticking roller and a driving motor. Fixing plates are provided at both ends of the mounting plate. The dust removal roller and the dust sticking roller are movably mounted on the fixing plates. The output end of the driving motor is connected to one end of the dust removal roller. The dust removal roller and the dust sticking roller are connected by belt drive. Mounting knobs are provided at the other ends of the dust removal roller and the dust sticking roller. A first linear guide rail and a telescopic rod are provided on the side of the mounting plate away from the dust removal roller. A movable block is slidably connected to the first linear guide rail. One end of the movable block is connected to a cleaning roller. The cleaning roller abuts against the placement table. The other end of the movable block is connected to the extended end of the telescopic rod.

[0013] As a preferred solution, the feeding mechanism includes a base, a cross plate, a partition plate, a loading table, a sliding assembly and a suction cup assembly. A sliding rod is provided on the base. The loading table is slidably arranged on the sliding rod. One side of the partition plate is fixedly mounted on the cross plate. The loading table is provided with a second linear guide rail. The sliding assembly is arranged on the second linear guide rail. The sliding assembly includes a limiting plate and a slider. The limiting plate is fixedly mounted on the slider. The limiting plate, the cross plate and the partition plate form a receiving cavity. The suction cup assembly is above the receiving cavity. A lifting movable plate is arranged in the loading table. One end of the lifting movable plate is connected to the output end of the motor.

[0014] As a preferred solution, the screen printing mechanism includes a printing assembly, an ink scraping and lifting assembly, a horizontal driving assembly and a lifting driving assembly. The printing assembly includes a printing screen plate, a fixing frame and an ink scraping assembly. The printing screen plate is fixedly connected to the fixing frame. The ink scraping assembly is arranged above the printing screen plate. The ink scraping assembly is connected to the ink scraping and lifting assembly. The horizontal driving assembly is connected to the lifting driving assembly. The ink scraping assembly includes a cylinder, a fixed clamping jaw, an ink scraping plate and an ink scraping knife. The output end of the cylinder is connected to the fixed clamping jaw. The ink scraping plate and the ink scraping knife are fixedly arranged in the fixed clamping jaw. The ink scraping plate and the ink scraping knife are directly opposite the printing station below.

[0015] As a preferred solution, the screen printing equipment is provided with an operation display screen for operating each mechanism. Multiple groups of door leaves are provided on the frame.

[0016] The beneficial effects of the screen printing device disclosed by the present utility model are as follows: The sucker assembly in the loading mechanism adsorbs the screen tempered film and transports it to the feeding station on the conveying mechanism. The screen tempered film is driven back and forth between the feeding station and the printing station by the conveying mechanism. The cleaning mechanism can remove dust and impurities from the surface of the screen tempered film, effectively ensuring the quality of screen printing. After the screen tempered film is screen printed by the screen printing mechanism at the printing station, it returns to the feeding station. The sucker assembly then adsorbs the screen tempered film with the screen printing completed to the detection mechanism for detection, with relatively high production efficiency. After the inspection camera finishes taking pictures and inspecting, the qualified products are conveyed to the conveyor belt, and the staff can then take out the qualified products for packaging. The unqualified products will be adsorbed into the collection bin by the suction nozzle for collection. After the equipment stops running, the staff can take out the unqualified products. The process is highly integrated, the overall equipment structure is compact, occupies little space, and all steps are completed within one device, requiring not too many staff members for operation, which can save most of the labor and materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the screen printing device of the present utility model.

[0018] Figure 2 is a schematic internal structural diagram of the screen printing device of the present utility model.

[0019] Figure 3 is a schematic structural diagram of the screen printing and detection mechanism of the present utility model.

[0020] Figure 4 is a schematic structural diagram of the conveying mechanism of the screen printing device of the present utility model.

[0021] Figure 5 is a schematic structural diagram of the cleaning mechanism of the screen printing device of the present utility model.

[0022] Figure 6 is a schematic diagram of the other side structure of the cleaning mechanism of the screen printing device of the present utility model.

[0023] Figure 7 is a schematic structural diagram of the loading mechanism of the screen printing device of the present utility model.

[0024] Figure 8 is a schematic diagram of the structure of the loading mechanism of the screen printing device of the present utility model from another perspective.

[0025] Figure 9 is a schematic structural diagram of the screen printing mechanism of the screen printing device of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following further elaborates and explains the present utility model in conjunction with specific embodiments and the accompanying drawings of the specification:

[0027] Reference Figure 3 A screen printing detection mechanism 7 includes an information acquisition module 71, a collection bin 72, a detection table 73, and a movable cylinder 74. The detection table 73 and the collection bin 72 are both arranged on the workbench surface. The information acquisition module 71 includes a support frame 711 fixed on the detection table 73. One end of the support frame 711 is connected with a detection camera 712. A detection station for placing the screen tempered film is arranged on the detection table 73. The lens of the detection camera 712 faces the detection station. A conveyor belt 6 is arranged on one side of the screen printing detection mechanism 7. The movable cylinder 74 is arranged on one side of the conveyor belt 6. The output end of the movable cylinder 74 is connected with a first telescopic cylinder 741. The output end of the first telescopic cylinder 741 is connected with a mounting block 742. Multiple groups of suction nozzles 743 are arranged on the mounting block 742. The suction nozzles 743 are used for transporting the screen tempered film between the detection station and the collection bin 72.

[0028] The screen tempered film after screen printing is placed on the detection station for detection. After the detection camera 712 finishes taking pictures and detecting, the qualified products will be conveyed onto the conveyor belt 6, and the staff can take out the qualified products for packaging. The unqualified products will be adsorbed into the collection bin 72 by the suction nozzles 743 for collection. After the equipment stops running, the staff can take out the unqualified products. The overall operation is integrated, without the need to transport to other places for detection, which can save a lot of manpower and material resources and has strong practicability.

[0029] Reference Figures 1 to 3 A screen printing device includes the above-mentioned screen printing detection mechanism 7.

[0030] A screen printing device further includes a frame 1, a conveying mechanism 2, a feeding mechanism 3, a screen printing mechanism 4, and a cleaning mechanism 5. The feeding mechanism 2 is arranged on one side of the frame 1. The conveying mechanism 2 is horizontally arranged on the frame 1. The two ends of the conveying mechanism 2 are respectively provided with a feeding station 12 and a printing station 13. One end of the feeding station 12 is arranged beside the feeding mechanism 2. The screen printing mechanism 3 is arranged above the printing station 13. The screen printing mechanism 4 approaches or moves away from the printing station 13 longitudinally. The cleaning mechanism 5 is arranged between the feeding station 12 and the printing station 13.

[0031] Reference Figure 4, the conveying mechanism 2 includes a placement table 21, a sliding guide rail 22 and a positioning assembly 23. The placement table 21 is slidably arranged on the sliding guide rail 22. The positioning assembly 23 includes a second telescopic cylinder 24. The second telescopic cylinder 24 is fixed on the side surface of the placement table 21. The output end of the second telescopic cylinder 24 is connected with multiple groups of stoppers 25. Multiple groups of notches are provided on the surface of the placement table 21. The stoppers 25 move in the notches through the second telescopic cylinder 24. The cleaning mechanism 5 is arranged above the placement table 21. The placement table 21 can slide horizontally on the sliding guide rail 22. When it slides to the feeding station 12, it is driven by two groups of second telescopic cylinders 24 on the placement table 21, so that the stoppers 25 retract in the notches. The stoppers 25 are abutted against the screen tempered film to play a positioning role, so as to correct the product position and ensure that the product can always be accurately located at the feeding station 12. Then it slides to the printing station 13 for screen printing, then returns to the feeding station 12 for positioning, and finally is conveyed to the detection mechanism 7 for detection. It can effectively prevent the screen tempered film placed on the placement table 21 from having a position deviation, so as to achieve a better effect during ink scraping.

[0032] Reference Figure 5 and Figure 6, the cleaning mechanism 5 includes a mounting plate 51, a dust removal roller 52, a dust sticking roller 53 and a driving motor 54. Fixed plates 55 are provided at both ends of the mounting plate 51. The dust removal roller 52 and the dust sticking roller 53 are movably mounted on the fixed plates 55. The output end of the driving motor 54 is connected to one end of the dust removal roller 52. The dust removal roller 52 and the dust sticking roller 53 are connected by belt drive. Mounting knobs 56 are provided at the other ends of the dust removal roller 52 and the dust sticking roller 53. A first linear guide 60 and a telescopic rod 57 are provided on the side of the mounting plate 51 away from the dust removal roller 52. A movable block 58 is slidably connected to the first linear guide 60. One end of the movable block 58 is connected to a cleaning roller 59. The cleaning roller 59 abuts against the placement table 21. The other end of the movable block 58 is connected to the extended end of the telescopic rod 57. When the mobile phone tempered film is conveyed to the printing station 13 by the conveying mechanism 2, it will first be cleaned for the first time by the cleaning mechanism 5. Rotating the telescopic rod 57 can adjust the cleaning roller 59 to closely adhere to the surface of the screen tempered film. During the conveying process, the cleaning roller 59 can adhere to the dust and impurities on the screen tempered film. After dust removal of the screen tempered film, one end of the tape for adhering the cleaning roller 59 is wound around the dust removal roller 52, and the other end is wound around the dust sticking roller 53. The tape can stick to the dust and impurities attached to the surface of the cleaning roller 59. Driven by the driving motor 54, the part adhered with dust and impurities gradually winds around the dust removal roller 52. The dust removal roller 52 and the dust sticking roller 53 abut against each other. The dust sticking roller 53 cleans the dust and impurities on the surface of the dust removal roller 52 again to ensure the cleanliness of the surface of the dust removal roller 52. The mounting knob 56 can disassemble the dust removal roller 52 and the dust sticking roller 53. The overall structure is simple, the cost is low, and the cleaning effect is obvious.

[0033] Reference Figure 7 and Figure 8, the feeding mechanism 3 includes a base 31, a cross plate 32, a partition plate 36, a carrier table 33, a sliding assembly 34 and a suction cup assembly 35. A slide bar 311 is provided on the base 31, and the carrier table 33 is slidably arranged on the slide bar 311. One side of the partition plate 36 is fixedly installed on the cross plate 32. The carrier table 33 is provided with a second linear guide rail 331, and the sliding assembly 34 is arranged on the second linear guide rail 331. The sliding assembly 34 includes a limit plate 341 and a slider 342. The limit plate 341 is fixedly installed on the slider 342. The limit plate 341, the cross plate 32 and the partition plate 36 form an accommodation cavity. The suction cup assembly 35 is above the accommodation cavity. A lifting movable plate 332 is arranged inside the carrier table 33, and one end of the lifting movable plate 332 is connected to the output end of the motor. The limit plate 341 can be fixed at any position through the sliding assembly 34, which is convenient for the staff to put the unprocessed materials into the accommodation cavity. When the screen printing device is working, the feeding mechanism 3 supports the materials to rise through the lifting movable plate 332, and sucks and transports the materials to the feeding station 12 through the suction cup assembly 35. When the sensor at the upper end of the inner wall of the accommodation cavity cannot sense the mobile phone tempered film, the motor drives the lifting movable plate 332 to make the lifting movable plate 332 rise one grid, realizing automatic operation and higher production efficiency.

[0034] Reference Figure 9 , the screen printing mechanism 4 includes a printing assembly 41, a scraping ink lifting assembly 42, a horizontal driving assembly 43 and a lifting driving assembly 44. The printing assembly 41 includes a printing screen 411, a fixing frame 412 and a scraping ink assembly 413. The printing screen 411 is fixedly connected to the fixing frame 412. The scraping ink assembly 413 is arranged above the printing screen 411. The scraping ink assembly 413 is connected to the scraping ink lifting assembly 42. The horizontal driving assembly 43 is connected to the lifting driving assembly 44. The scraping ink assembly 413 includes a cylinder 414, a fixing jaw 416, a scraping ink plate 417 and a scraping ink knife 418. The output end of the cylinder 414 is connected to the fixing jaw 416. The scraping ink plate 417 and the scraping ink knife 418 are fixedly arranged inside the fixing jaw 416. The lower part of the scraping ink plate 417 and the scraping ink knife 418 is directly opposite to the printing station 13. When the screen tempered film is transported to the printing station 13 through the conveying mechanism 2, the lifting driving assembly 44 descends, and the horizontal driving assembly 43 drives the scraping ink assembly 413 to move back and forth on the printing screen 411 for ink screen printing. The cylinder drives the scraping ink knife 418 to perform the first scraping of ink, and then the scraping ink plate 417 is used for ink return. After the screen printing is completed, the lifting driving assembly 44 rises, the placing table 21 slides to the feeding station 12, and waits for the next screen tempered film to be screen printed and repeats the above steps. The overall process is simple and fast, and the efficiency is relatively high.

[0035] The screen printing detection mechanism 7 and the screen printing equipment are provided with an operation display screen 14, which is used to operate each mechanism. A plurality of groups of door leaves 15 are arranged on the frame 1. The display screen facilitates the operation of the staff between the mechanisms. A plurality of groups of door leaves 15 are arranged on the frame 1, which can ensure a relatively stable environment for the screen tempered film during screen printing, preventing external dust or impurities from blowing into the equipment and affecting the screen printing process.

[0036] The screen tempered film is adsorbed and transported to the feeding station 12 on the conveying mechanism 2 by the suction cup assembly 35 in the feeding mechanism 3. By controlling the conveying mechanism 2 to move back and forth between the feeding station 12 and the printing station 13 on the workbench surface 11, after the screen tempered film is screen printed by the screen printing mechanism 4 at the printing station 13, it returns to the feeding station 12 again, where it is subjected to the cleaning treatment by the cleaning mechanism 5. Then, the suction cup assembly 35 adsorbs the screen tempered film with the screen printing completed to the detection mechanism 7 for detection, and the production efficiency is relatively high. After the detection camera 712 finishes taking pictures for detection, the qualified products are conveyed to the conveyor belt 6, and the staff can take out the qualified products for packaging. The unqualified products will be adsorbed into the collection bin 72 by the suction nozzle 76 for collection. After the equipment stops running, the staff can take out the unqualified products. The overall operation is integrated, without the need to transport to other places for detection, and the process integration is high. The overall equipment structure is compact and occupies a small space. Each step is completed in one equipment, and it can be operated with not too many staff, which can save most of the financial expenditure.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A silk screen inspection mechanism, characterized in that, The silk screen inspection mechanism includes an information acquisition module, a collection bin, an inspection table, and a movable cylinder. The inspection table and the collection bin are both arranged on the workbench surface. The information acquisition module includes a support frame fixed on the inspection table. One end of the support frame is connected with an inspection camera. An inspection station for placing the screen tempered film is arranged on the inspection table. The lens of the inspection camera faces the inspection station directly. A conveyor belt is arranged on one side of the silk screen inspection mechanism. The movable cylinder is arranged on one side of the conveyor belt. The output end of the movable cylinder is connected with a first telescopic cylinder. The output end of the first telescopic cylinder is connected with a mounting block. Multiple groups of suction nozzles are arranged on the mounting block. The suction nozzles are used for conveying the screen tempered film between the inspection station and the collection bin.

2. A silk-screen printing device, characterized in that The silk screen printing equipment includes the silk screen inspection mechanism described in Claim 1.

3. A silk-screen printing device, characterized in that, The silk screen printing equipment further includes a frame, a conveying mechanism, a feeding mechanism, a silk screen printing mechanism, and a cleaning mechanism. The feeding mechanism is arranged on one side of the frame. The conveying mechanism is horizontally arranged on the frame. The two ends of the conveying mechanism are respectively provided with a feeding station and a printing station. One end of the feeding station is arranged beside the feeding mechanism. The silk screen printing mechanism is arranged above the printing station. The silk screen printing mechanism approaches or moves away from the printing station longitudinally. The cleaning mechanism is arranged between the feeding station and the printing station.

4. The screen printing device according to claim 3, wherein The conveying mechanism includes a placing table, a sliding guide rail, and a positioning component. The placing table is slidably arranged on the sliding guide rail. The positioning component includes a second telescopic cylinder. The second telescopic cylinder is fixed on the side surface of the placing table. The output end of the second telescopic cylinder is connected with multiple groups of stoppers. Multiple groups of notches are arranged on the surface of the placing table. The stoppers move in the notches through the second telescopic cylinder. The cleaning mechanism is arranged above the placing table.

5. The silk-screen printing device according to claim 4, wherein, The cleaning mechanism includes a mounting plate, a dust removal roller, a dust sticking roller, and a driving motor. Fixing plates are arranged at both ends of the mounting plate. The dust removal roller and the dust sticking roller are movably installed on the fixing plates. The output end of the driving motor is connected with one end of the dust removal roller. The dust removal roller and the dust sticking roller are connected by a belt drive. Mounting knobs are arranged at the other ends of the dust removal roller and the dust sticking roller. A first linear guide rail and a telescopic rod are arranged on the surface of the mounting plate away from the dust removal roller. A movable block is slidably connected on the first linear guide rail. One end of the movable block is connected with a cleaning roller. The cleaning roller abuts against the placing table. The other end of the movable block is connected with the extending end of the telescopic rod.

6. The screen printing device according to claim 3, wherein The feeding mechanism includes a base, a cross plate, a partition plate, a loading platform, a sliding assembly and a suction cup assembly. A slide bar is provided on the base, and the loading platform is slidably arranged on the slide bar. One side of the partition plate is fixedly installed on the cross plate. The loading platform is provided with a second linear guide rail, and the sliding assembly is arranged on the second linear guide rail. The sliding assembly includes a limiting plate and a slider. The limiting plate is fixedly installed on the slider. The limiting plate, the cross plate and the partition plate form an accommodating cavity. The suction cup assembly is above the accommodating cavity. A lifting movable plate is arranged in the loading platform, and one end of the lifting movable plate is connected to the output end of the motor.

7. The screen printing device according to claim 3, characterized in that, The silk screen printing mechanism includes a printing assembly, a scraping ink lifting assembly, a horizontal driving assembly and a lifting driving assembly. The printing assembly includes a printing screen plate, a fixing frame and a scraping ink assembly. The printing screen plate is fixedly connected to the fixing frame. The scraping ink assembly is arranged above the printing screen plate. The scraping ink assembly is connected to the scraping ink lifting assembly, and the horizontal driving assembly is connected to the lifting driving assembly. The scraping ink assembly includes a cylinder, a fixed clamping jaw, a scraping ink plate and a scraping ink knife. The output end of the cylinder is connected to the fixed clamping jaw. The scraping ink plate and the scraping ink knife are fixedly arranged in the fixed clamping jaw. The lower part of the scraping ink plate and the scraping ink knife is directly opposite to the printing station.

8. The screen printing device according to claim 3, characterized in that, The silk screen printing equipment is provided with an operation display screen for operating each mechanism, and multiple groups of door leaves are arranged on the machine frame.

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