Inking device

Abstract

The utility model discloses an ink coating device which comprises a mounting bottom plate, a feeding mechanism, a first conveying mechanism, a pen changing mechanism, an ink coating mechanism and a second conveying mechanism, a feeding and discharging position and an ink coating position are arranged on the mounting bottom plate, and a screen is fixed through the feeding mechanism. The pen changing mechanism comprises a rotary pen disc assembly and a pen cap loosening and tightening mechanism, a plurality of ink coating pens are placed on the rotary pen disc assembly in the circumferential direction and can be rotated to the pen taking position, and the pen cap loosening and tightening mechanism unscrews pen caps. The first conveying mechanism drives the feeding mechanism to move, so that the screen moves between the feeding and discharging position and the ink coating position. The second conveying mechanism is erected on the upper side of the first conveying mechanism and drives the ink coating mechanism to move between the ink coating position and the pen taking position. The ink coating mechanism clamps the ink coating pen to coat the screen with ink, and the clamping mechanism is responsible for clamping or releasing the ink coating pen. According to the utility model, automatic ink coating can be realized, the production efficiency is improved, the ink coating reject ratio is reduced, the ink coating effect is improved, and an automatic pen changing function can be realized.

Description

Technical Field

[0001] This utility model relates to the field of screen processing equipment, and in particular to an ink coating device. Background Technology

[0002] The edges of existing electronic device screens require ink application to prevent light leakage. Because the ink pen is exposed, it dries easily, leading to frequent ink breaks and uneven application, affecting screen quality and resulting in high defect rates. Furthermore, since a single ink pen can only ink 30 products, the high UPH (upper usage per hour) necessitates frequent pen changes, severely impacting production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an ink coating device that can automatically apply ink and automatically change ink, which is beneficial to improving production efficiency. In addition, it is also beneficial to reduce the ink coating defect rate and improve the ink coating effect.

[0004] To achieve the above objectives, this utility model provides an ink coating device for coating a screen with ink, including a mounting base plate, a feeding mechanism, a first conveying mechanism, a pen changing mechanism, an ink coating mechanism, and a second conveying mechanism.

[0005] The mounting base plate is provided with upper and lower material positions and ink coating positions along the conveying direction of the first conveying mechanism, and the material feeding mechanism is used to place and fix the screen;

[0006] The first conveying mechanism is mounted on the mounting base plate, and the feeding mechanism is mounted on the first conveying mechanism. The first conveying mechanism is used to drive the feeding mechanism to move, so that the screen can move between the loading / unloading position and the ink coating position.

[0007] The pen changing mechanism is mounted on the mounting base plate. The pen changing mechanism includes a rotating pen disk assembly and a pen cap tightening mechanism. The pen changing mechanism is provided with a pen pick-up position. The rotating pen disk assembly includes a pen disk and a first driving mechanism for driving the pen disk to rotate around its own rotation center. Several ink pens are placed circumferentially on the pen disk. The pen cap tightening mechanism is used to loosen the pen cap of the ink pen that has been rotated to the pen pick-up position.

[0008] The ink application mechanism includes a clamping mechanism for gripping the ink pen at the pen-taking position and releasing the ink pen to the pen cap at the pen-taking position.

[0009] The second conveying mechanism is mounted on the mounting base plate, and the ink coating mechanism is mounted on the second conveying mechanism. The second conveying mechanism is used to drive the ink coating mechanism to move, so that the ink coating mechanism can move between the ink coating position and the pen picking position.

[0010] When the screen and the inking mechanism move to the inking position, the first conveying mechanism drives the screen and the second conveying mechanism to drive the inking mechanism to apply ink to the screen.

[0011] Optionally, the rotating pen tray assembly further includes a pen tray mounting base, the first drive mechanism is mounted below the pen tray mounting base, the output end of the first drive mechanism is connected to the pen tray mounting base, the pen tray is detachably mounted on the pen tray mounting base, and the first drive mechanism is used to drive the pen tray mounting base to rotate around the rotation center.

[0012] Optionally, the pen tray includes a first layer and a second layer, which are arranged in layers. The first layer is disposed above the second layer. The first layer has a plurality of through holes for inserting the ink pen. The cap of the ink pen abuts against the second layer.

[0013] Optionally, the pen cap tightening mechanism includes a pen cap gripper assembly, a telescopic mechanism, and a second drive mechanism. The pen cap gripper assembly is mounted on the output end of the telescopic mechanism, and the telescopic mechanism is mounted on the output end of the second drive mechanism. The telescopic mechanism is used to drive the pen cap gripper assembly to move closer to or away from the pen cap. The pen cap gripper assembly is used to clamp or release the pen cap. The second drive mechanism is used to drive the pen cap gripper assembly to rotate.

[0014] Optionally, the rotating pen assembly is equipped with a pen presence / absence sensor for each pen placement position, and the pen presence / absence sensor is used to detect whether the pen is present or absent at the pen placement position.

[0015] Optionally, the feeding mechanism includes a fixture and a lifting mechanism. The fixture includes a placement platform and a positioning mechanism. The placement platform is used to place the screen, and the positioning mechanism is used to position the screen.

[0016] The positioning mechanism includes a positioning block, a positioning cylinder, and a limiting block. The positioning cylinder is respectively located on one side of the placement platform in the first direction and on one side in the second direction. The positioning block is installed at the output end of the positioning cylinder. The limiting blocks are respectively located on the other side of the placement platform in the first direction and on the other side in the second direction. The positioning cylinder is used to drive the positioning block to move along the first direction and the second direction, respectively. The first direction and the second direction are perpendicular to each other on the horizontal plane.

[0017] The lifting mechanism is located below the fixture, and its output end is connected to the fixture. The lifting mechanism is used to lift the fixture that is being transported to the ink coating position.

[0018] Optionally, a pen-pressing groove is also provided at one corner of the placement platform for pressing down the ink pen; and / or,

[0019] One corner of the placement platform is also provided with an ink pen detection slot, which is used to detect the position of the ink pen.

[0020] Optionally, the first conveying mechanism is disposed on the lower side of the mounting base plate, the feeding mechanism is disposed on the upper side of the mounting base plate, the mounting base plate has two through slots extending along the X-axis and arranged side by side, the through slots penetrate the mounting base plate, and the feeding mechanism is fixedly connected to the first conveying mechanism through a first connecting member disposed in the through slot;

[0021] The first conveying mechanism includes a supporting base plate, a third driving mechanism, and an X-axis sliding assembly. The supporting base plate is fixedly connected to the mounting base plate. The third driving mechanism and the X-axis sliding assembly are disposed on the supporting base plate. The X-axis sliding assembly includes an X-axis slide rail extending along the X-axis direction disposed on the supporting base plate and an X-axis slider slidably disposed on the slide rail. The first connecting member is connected to the X-axis slider. The output end of the third driving mechanism is fixedly connected to a third connecting member. The third connecting member is fixedly connected between the X-axis slider and the first connecting member.

[0022] Optionally, the second conveying mechanism includes a mounting bracket and a Y-axis linear module, the mounting bracket spanning across the mounting base plate along the Y-axis direction, and the Y-axis linear module being mounted on the mounting bracket;

[0023] Optionally, the ink coating mechanism further includes a Z-axis conveying mechanism, which is installed at the output end of the Y-axis linear module. The output end of the Z-axis conveying mechanism is connected to the clamping mechanism to drive the clamping mechanism to move along the Z-axis direction.

[0024] Optionally, the clamping mechanism includes a gripper mounting plate, a fourth drive mechanism, and a gripping jaw. The gripper mounting plate is fixedly connected to the slider of the Z-axis conveying mechanism. The fourth drive mechanism is mounted on the gripper mounting plate. The gripping jaw is connected to the output end of the fourth drive mechanism. The fourth drive mechanism is used to drive the gripping jaw to clamp or open.

[0025] In this embodiment of the utility model, the inking device includes a mounting base plate with upper and lower material positions and an inking position respectively provided along the conveying direction of the first conveying mechanism, a feeding mechanism for placing and fixing the screen, a first conveying mechanism for driving the feeding mechanism to move, a pen changing mechanism with a pen picking position, an inking mechanism for applying ink to the screen, and a second conveying mechanism for driving the inking mechanism to move. The pen changing mechanism includes a rotating pen disk assembly that can rotate around its own rotation center and a pen cap tightening mechanism for loosening the pen cap. The rotating pen disk assembly has a plurality of inking pens placed circumferentially. The pen cap tightening mechanism is used to loosen the pen caps of the inking pens from the pen tip. The first conveying mechanism is mounted on the mounting base plate, and the feeding mechanism is mounted on the first conveying mechanism. The first conveying mechanism drives the feeding mechanism to move between the upper and lower material positions and the inking position. The second conveying mechanism is mounted on the mounting base plate, and the inking mechanism is mounted on the second conveying mechanism. The clamping mechanism can clamp or release the inking pen from the rotating pen disk assembly. After the screen is fixedly installed at the loading and unloading positions by the feeding mechanism, it is conveyed to the inking position by the first conveyor mechanism. The pen cap tightening mechanism loosens the pen cap of the inking pen at the pen pick-up position. Driven by the second conveyor mechanism, the inking mechanism moves to the rotating pen disk assembly, where it grips the inking pen and moves it to the inking position. The first conveyor mechanism drives the feeding mechanism to move, and the second conveyor mechanism drives the inking mechanism to move, thus applying ink to the screen. After inking is completed, the second conveyor mechanism drives the inking mechanism to move back to the pen pick-up position to release the inking pen to the pen cap. This utility model can realize automatic inking. By rotating the pen disk assembly, the next inking pen is switched to the pen pick-up position. It can also realize automatic pen changing function, eliminating the need for frequent manual pen changing, which is beneficial to improving production efficiency. In addition, the inking pen is equipped with a pen cap, which can be closed after inking to prevent the pen tip from drying out, thereby reducing the inking defect rate and improving the inking effect. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the ink coating device in an embodiment of this utility model.

[0027] Figure 2 This is a three-dimensional structural diagram of the ink coating device from another angle in an embodiment of this utility model.

[0028] Figure 3 This is a top view of the ink coating device in an embodiment of this utility model.

[0029] Figure 4 This is a three-dimensional structural diagram of the pen-changing mechanism in an embodiment of this utility model.

[0030] Figure 5 This is an exploded view of the rotating pen disk assembly in an embodiment of the present invention.

[0031] Figure 6This is a three-dimensional structural diagram of the first conveying mechanism and the feeding mechanism in the embodiments of this utility model.

[0032] Figure 7 This is a three-dimensional structural diagram of the feeding mechanism in an embodiment of this utility model.

[0033] Figure 8 This is a three-dimensional structural diagram of the second conveying mechanism and the ink coating mechanism in an embodiment of this utility model.

[0034] Figure 9 This is a three-dimensional structural diagram of the second conveying mechanism and the ink coating mechanism from another angle in an embodiment of this utility model.

[0035] Figure 10 This is a three-dimensional structural diagram of the ink coating mechanism in an embodiment of this utility model. Detailed Implementation

[0036] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0037] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0038] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0039] Please see Figures 1 to 10 This utility model discloses an inking device 1 for inking a screen, including a mounting base plate 10, a feeding mechanism 20, a first conveying mechanism 30, a pen changing mechanism 40, a second conveying mechanism 60, and an inking mechanism 50. The mounting base plate 10 is provided with upper and lower feeding positions 11 and an inking position 12 along the conveying direction of the first conveying mechanism 30, and the feeding mechanism 20 is used to place and fix the screen.

[0040] The first conveying mechanism 30 is mounted on the mounting base plate 10, and the feeding mechanism 20 is mounted on the first conveying mechanism 30. The first conveying mechanism 30 is used to drive the feeding mechanism 20 to move, so that the screen moves between the upper and lower material positions 11 and the ink coating position 12.

[0041] The pen changing mechanism 40 is mounted on the mounting base plate 10. The pen changing mechanism 40 includes a rotating pen disk assembly 41 and a pen cap tightening mechanism 42. The pen changing mechanism 40 is provided with a pen pick-up position 43. The rotating pen disk assembly 41 includes a pen disk 44 and a first drive mechanism 45 for driving the pen disk 44 to rotate around its own rotation center. A plurality of ink pens 70 are placed circumferentially on the rotating pen disk assembly 41. The pen cap tightening mechanism 42 is used to loosen the pen cap 71 of the ink pen 70 that has been rotated to the pen pick-up position 43.

[0042] The inking mechanism 50 includes a clamping mechanism 51 for gripping the inking pen 70 at the pen position 43 and releasing the inking pen 70 to the pen position 43 with a pen cap 71.

[0043] The second conveying mechanism 60 is mounted on the mounting base plate, and the ink coating mechanism 50 is mounted on the second conveying mechanism 60. The second conveying mechanism 60 is used to drive the ink coating mechanism 50 to move, so that the ink coating mechanism 50 moves between the ink coating position 12 and the pen picking position 43.

[0044] When the screen and the ink coating mechanism 50 move to the ink coating position 12, the screen is driven by the first conveying mechanism 30 and the second conveying mechanism 60, which in turn drive the ink coating mechanism 50 to coat the screen with ink.

[0045] In this embodiment of the utility model, the inking device 1 includes a mounting base plate 10 with upper and lower material positions 11 and an inking position 12 respectively provided along the conveying direction of the first conveying mechanism 30; a screen loading mechanism 20 for placing and fixing the screen; a first conveying mechanism 30 for driving the loading mechanism 20 to move; a pen changing mechanism 40 with a pen picking position 43; an inking mechanism 50 for applying ink to the screen; and a second conveying mechanism 60 for driving the inking mechanism 50 to move. The pen changing mechanism 40 includes a rotating pen disk assembly 41 that can rotate around its own rotation center and a pen cap tightening mechanism for loosening the pen cap 71. 42. A number of ink pens 70 are placed vertically on the rotating pen disk assembly 41. The pen cap tightening mechanism 42 is used to loosen the pen caps 71 of the ink pens 70. The first conveying mechanism 30 is installed on the mounting base plate 10. The feeding mechanism 20 is installed on the first conveying mechanism 30. The first conveying mechanism 30 drives the feeding mechanism 20 to move between the upper and lower feeding positions 11 and the ink application position 12. The second conveying mechanism 60 is installed on the mounting base plate 10. The ink application mechanism 50 is installed on the second conveying mechanism 60. The clamping mechanism 51 can grab or release the ink pens 70 from the rotating pen disk assembly 41. After the screen is fixedly installed at the loading / unloading position 11 by the loading mechanism 20, it is conveyed to the ink coating position 12 by the first conveying mechanism 30. The pen cap tightening mechanism 42 loosens the pen cap 71 of the ink coating pen 70 at the pen pick-up position 43. The ink coating mechanism 50 moves to the rotating pen disk assembly 41 under the drive of the second conveying mechanism 60. The pen coating pen 70 is clamped by the clamping mechanism 51 and moved to the ink coating position 12. The loading mechanism 20 is moved by the first conveying mechanism 30 and the ink coating mechanism 50 is moved by the second conveying mechanism 60 to apply ink to the screen. After the ink coating is completed, the ink coating mechanism 50 can be moved to the pen pick-up position 43 by the second conveying mechanism 60 to release the pen coating pen 70 to the pen cap 71. This invention enables automatic ink application. By rotating the pen tray assembly 41, the next ink pen 70 can be switched to the pen pick-up position 43. It also enables automatic pen changing, eliminating the need for frequent manual replacement of the ink pen 70, which helps improve production efficiency. In addition, the ink pen 70 is equipped with a pen cap 71. After ink application, the pen cap 71 can be closed to prevent the pen tip from drying out, thereby reducing the ink application defect rate and improving the ink application effect.

[0046] Please see Figure 4 and Figure 5 In some embodiments, the rotating pen tray assembly 41 further includes a pen tray mounting base 46, the output end of the first drive mechanism 45 is connected to the pen tray mounting base 46, the pen tray 44 is detachably mounted on the pen tray mounting base 46, and the first drive mechanism 45 is used to drive the pen tray mounting base 46 to rotate around the rotation center.

[0047] Specifically, the first drive mechanism 45 is installed below the pen tray holder 46.

[0048] Specifically, the pen tray 44 includes a first layer plate 441 and a second layer plate 442 arranged in layers. The first layer plate 441 is disposed above the second layer plate 442. The first layer plate 441 has a plurality of mounting holes 443 for inserting ink pens 70. The pen cap 71 of the ink pen 70 abuts against the second layer plate 442.

[0049] The pen tray 44 is detachably mounted on the pen tray holder 46. Multiple ink pens 70 are mounted on one pen tray 44, which makes it convenient to replace the pen tray 44 at once when all the ink pens 70 are exhausted. This is more convenient and reduces the workload of manually changing pens.

[0050] Specifically, the rotating pen tray assembly 41 is fixedly mounted on the mounting base plate 10 via the pen tray fixing plate 411. The first drive mechanism 45 is a DD motor. The pen tray fixing seat 46 is fixedly connected to the rotor of the DD motor. The pen tray fixing seat 46 is provided with a magnet 461 and a positioning pin 352, which facilitates fixed connection with the pen tray 44 and enables quick replacement.

[0051] Specifically, the pen cap tightening mechanism 42 includes a pen cap gripper assembly 421, a telescopic mechanism 422, and a second drive mechanism 423. The pen cap gripper assembly 421 is installed at the output end of the telescopic mechanism 422, and the telescopic mechanism 422 is located at the output end of the second drive mechanism 423. The telescopic mechanism 422 is used to drive the pen cap gripper assembly 421 to move closer to or away from the pen cap 71. The pen cap gripper assembly 421 is used to clamp or release the pen cap 71. The second drive mechanism 423 is used to drive the pen cap gripper assembly 421 to rotate.

[0052] More specifically, the pen cap gripper assembly 421 includes a pen cap gripper 424 and a gripper cylinder 425. The pen cap gripper 424 is mounted on the output end of the gripper cylinder 425, which is used to drive the pen cap gripper 424 to clamp or release. The telescopic mechanism 422 is a slide cylinder, and the second drive mechanism 423 is a rotary cylinder.

[0053] More specifically, the rotating pen tray assembly 41 is equipped with a pen presence / absence sensor 48 for each pen placement position. The pen presence / absence sensor 48 is used to detect whether there is a pen 70 in the pen placement position. When no pen 70 is detected on the pen tray 44, a signal can be sent to the system to alarm the operator.

[0054] Furthermore, a sensor 48 for whether the ink pen is present or absent is mounted on the pen tray mounting base 46.

[0055] After the operator fixes the pen tray 44 to the pen tray mounting base 46, the rotating pen tray assembly 41 can operate automatically after the ink application device 1 is started. After the rotating pen tray assembly 41 stops rotating, the telescopic slide cylinder drives the pen cap clamp 424 to extend, and under the drive of the clamp cylinder 425, it clamps the pen cap 71 of the ink pen 70 at the pen pick-up position 43. Under the drive of the rotating cylinder, the pen cap 71 is rotated and loosened. When the ink pen 70 is used up, after the ink pen 70 is put back into the pen cap 71, the pen cap clamp 424 moves away from the pen pick-up position under the drive of the slide cylinder, and the DD motor moves the second ink pen 70 to the pen pick-up position 43, repeating the action for the previous ink pen 70. Since the ink pen presence sensor 48 is set to correspond to the placement position of each ink pen 70, when there is no ink pen 70 on the rotating pen tray assembly 41, the ink pen presence sensor 48 will send an alarm signal to the equipment to remind the operator to replace the pen tray 44.

[0056] Please see Figure 6 and Figure 7 In some embodiments, the feeding mechanism 20 includes a fixture 21 and a lifting mechanism 22. The fixture 21 includes a placement platform 23 and a positioning mechanism 24. The placement platform 23 is used to place the screen, and the positioning mechanism 24 is used to position the screen. The positioning mechanism 24 includes an alignment block 241, an alignment cylinder 242, and a limiting block 243. The alignment cylinder 242 is respectively disposed on one side of the placement platform 23 in a first direction and on one side in a second direction. The alignment block 241 is installed at the output end of the alignment cylinder 242. The limiting block 243 is respectively disposed on the other side of the placement platform 23 in the first direction and on the other side in the second direction. The alignment cylinder 242 is used to drive the alignment block 241 to move along the first direction and the second direction, which are perpendicular to each other on the horizontal plane.

[0057] The lifting mechanism 22 is located below the fixture 21, and its output end is connected to the fixture 21. The lifting mechanism 22 is used to lift the fixture 21 that has been conveyed to the ink coating position 12. The positioning cylinder 242 drives each positioning block 241 to move, pushing the screen to the limit block 243 in the first and second directions for limitation, thus ensuring the consistency of the screen's position during ink coating.

[0058] Specifically, the lifting mechanism 22 includes a lifting cylinder 221, which drives the jig 21 to rise and fall.

[0059] Specifically, the fixture 21 is also equipped with several vacuum suction cups 25, which can facilitate the adsorption and fixation of the screen.

[0060] Specifically, a pen-pressing groove 26 is provided at one corner of the placement platform 23. The pen-pressing groove 26 is used to press down the ink pen 70. By pressing down the pen at the ink-applying position 12 to dispense ink, the ink pen 70 can dispense ink more smoothly.

[0061] Specifically, another corner of the placement platform 23 is also provided with an ink pen detection slot 27, which is used to detect the position of the ink pen 70. Before the ink pen 70 applies ink, the position of the pen tip of the ink pen 70 needs to be detected through the ink pen detection slot 27 to ensure that the ink pen 70 moves to the correct position.

[0062] Please see Figure 2 , Figure 3 and Figure 6 In some embodiments, the first conveying mechanism 30 is disposed on the lower side of the mounting base plate 10, and the feeding mechanism 20 is disposed on the upper side of the mounting base plate 10. The mounting base plate 10 has two through slots 13 extending along the X-axis and arranged side by side. The through slots 13 penetrate the mounting base plate 10. The feeding mechanism 20 is fixedly connected to the first conveying mechanism 30 through a first connecting member 80 disposed in the through slots 13.

[0063] The first conveying mechanism 30 includes a supporting base plate 31, a third driving mechanism 32, and an X-axis sliding assembly 33. The supporting base plate 31 is fixedly connected to the mounting base plate 10. The third driving mechanism 32 and the X-axis sliding assembly 33 are disposed on the supporting base plate 31. The X-axis sliding assembly 33 includes an X-axis slide rail 331 extending along the X-axis direction disposed on the supporting base plate 31 and an X-axis slider 332 slidably disposed on the X-axis slide rail 331. The output end of the third driving mechanism 32 is fixedly connected to a third connecting member 82, which is fixedly connected between the X-axis slider 332 and the first connecting member 80.

[0064] Specifically, the supporting base plate 31 is fixedly connected to the mounting base plate 10 through the second connecting member 81 fixedly connected to the supporting base plate 31.

[0065] In a specific example, the third drive mechanism 32 includes an X-axis servo motor 321, an X-axis lead screw 322, and an X-axis synchronous pulley assembly 323. The X-axis synchronous pulley assembly 323 connects one end of the X-axis lead screw 322 to the rotation axis of the X-axis servo motor 321. After the X-axis servo motor 321 is turned on, it drives the X-axis lead screw 322 to rotate through the X-axis synchronous pulley assembly 323. The third connecting member 82 installed in cooperation with the X-axis lead screw 322 drives the first connecting member 80 to move along the X-axis direction, thereby driving the feeding mechanism 20 connected to the first connecting member 80 to slide along the X-axis direction.

[0066] Specifically, a position sensor 35 is also provided on one side of the supporting base plate 31 to detect and sense the position of the feeding mechanism 20.

[0067] Please see Figure 8 and Figure 9In some embodiments, the second conveying mechanism 60 includes a mounting bracket 61 and a Y-axis linear module 62. The mounting bracket 61 is mounted across the mounting base plate 10 along the Y-axis direction, and the Y-axis linear module 62 is mounted on the mounting bracket 61.

[0068] Please see Figure 8 and Figure 10 In some embodiments, the ink coating mechanism 50 further includes a Z-axis conveying mechanism 90, which is installed at the output end of the Y-axis linear module 62. The output end of the Z-axis conveying mechanism 90 is connected to the clamping mechanism 51 to drive the clamping mechanism 51 to move along the Z-axis direction.

[0069] Specifically, the Z-axis conveying mechanism 90 includes a Z-axis mounting bracket 91 and a Z-axis linear module 92. A Z-axis connecting block 93 is connected to the slider 63 of the Y-axis linear module 92. The Z-axis mounting bracket 91 is fixedly connected to the Z-axis connecting block 93. The Z-axis linear module 92 is fixedly mounted on the Z-axis mounting bracket 91, and the clamping mechanism 51 is fixedly connected to the slider of the Z-axis linear module 92. The Z-axis connecting block 93 and the Z-axis mounting bracket 91 facilitate the installation of the Z-axis conveying mechanism 90.

[0070] Specifically, the clamping mechanism 51 includes a gripper mounting plate 52, a fourth drive mechanism 53, and a gripping jaw 54. The gripper mounting plate 52 is fixedly connected to the slider of the Z-axis linear module 92. The fourth drive mechanism 53 is mounted on the gripper mounting plate 52. The gripping jaw 54 is connected to the output end of the fourth drive mechanism 53. The fourth drive mechanism 53 is used to drive the gripping jaw 54 to clamp or open.

[0071] More specifically, the fourth drive mechanism 53 is a cylinder, and the clamping mechanism 51 drives the clamping claw 54 to clamp and release the ink pen 70 through the cylinder.

[0072] To facilitate understanding of this utility model, the operation process of the device in the accompanying drawings is briefly described below, which should not be regarded as a limitation of this utility model.

[0073] The operator places the screen to be processed onto the placement platform 23 and presses the start button, initiating automatic operation of the inking device 1. Driven by the positioning cylinder 242, the two positioning blocks 241 push the screen to the limiting blocks 243 on both sides of the X and Y axes. The vacuum suction cup 25 then automatically vacuums and fixes the screen in place. The first conveying mechanism 30 moves the feeding mechanism 20 from the loading / unloading position 11 to the inking position 12, while the lifting mechanism 22 lifts the fixture 21 upwards, causing the screen to rise. Under the drive of the second conveying mechanism 60, the clamping mechanism 51 automatically moves to above the ink pen 70 at the pen pick-up position 43. The pen cap 71 is loosened by the pen cap tightening mechanism 42, and the clamping mechanism 51 clamps the ink pen 70, pulling it upwards. Driven by the second conveying mechanism 60, it moves to the pen pressure groove 26. Driven by the Z-axis conveying mechanism 90, the ink pen 70 is pressed downwards ten times to ensure smooth ink flow. The ink pen detection groove 27 then checks if the position of the ink pen 70 is correct. Then, driven by the first conveying mechanism 30, the second conveying mechanism 60, and the Z-axis conveying mechanism 90, the clamped ink pen 70 moves in a "U" shaped motion to apply ink to the four sides and edges of the screen. After ink application, the first conveying mechanism 30 drives the loading mechanism 20 back to the loading / unloading position 11. The screen is then manually removed and placed into the next screen to be processed, starting the next cycle.

[0074] The above-disclosed examples are merely preferred embodiments of the present utility model, intended to facilitate understanding and implementation by those skilled in the art. They should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model patent shall still fall within the scope of the present utility model.

Claims

1. An ink-coating device for coating ink onto a screen, characterized in that, It includes a mounting base plate, a feeding mechanism, a first conveying mechanism, a pen changing mechanism, an ink coating mechanism, and a second conveying mechanism; The mounting base plate is provided with upper and lower material positions and ink coating positions along the conveying direction of the first conveying mechanism, and the material feeding mechanism is used to place and fix the screen; The first conveying mechanism is mounted on the mounting base plate, and the feeding mechanism is mounted on the first conveying mechanism. The first conveying mechanism is used to drive the feeding mechanism to move, so that the screen can move between the loading / unloading position and the ink coating position. The pen changing mechanism is mounted on the mounting base plate. The pen changing mechanism includes a rotating pen disk assembly and a pen cap tightening mechanism. The pen changing mechanism is provided with a pen pick-up position. The rotating pen disk assembly includes a pen disk and a first driving mechanism for driving the pen disk to rotate around its own rotation center. Several ink pens are placed circumferentially on the pen disk. The pen cap tightening mechanism is used to loosen the pen cap of the ink pen that has been rotated to the pen pick-up position. The ink application mechanism includes a clamping mechanism for gripping the ink pen at the pen-taking position and releasing the ink pen to the pen cap at the pen-taking position. The second conveying mechanism is mounted on the mounting base plate, and the ink coating mechanism is mounted on the second conveying mechanism. The second conveying mechanism is used to drive the ink coating mechanism to move, so that the ink coating mechanism can move between the ink coating position and the pen picking position. When the screen and the inking mechanism move to the inking position, the first conveying mechanism drives the screen and the second conveying mechanism to drive the inking mechanism to apply ink to the screen.

2. The ink coating device as described in claim 1, characterized in that, The rotating pen tray assembly also includes a pen tray mounting base. The output end of the first drive mechanism is connected to the pen tray mounting base. The pen tray is detachably mounted on the pen tray mounting base. The first drive mechanism is used to drive the pen tray mounting base to rotate around the rotation center.

3. The ink coating device as described in claim 2, characterized in that, The pen tray includes a first layer and a second layer, which are arranged in layers. The first layer is located above the second layer and has several through holes for inserting the ink pen. The cap of the ink pen abuts against the second layer.

4. The ink coating device as described in claim 1, characterized in that, The pen cap tightening mechanism includes a pen cap gripper assembly, a telescopic mechanism, and a second drive mechanism. The pen cap gripper assembly is installed at the output end of the telescopic mechanism, and the telescopic mechanism is installed at the output end of the second drive mechanism. The telescopic mechanism is used to drive the pen cap gripper assembly to move closer to or away from the pen cap. The pen cap gripper assembly is used to clamp or release the pen cap. The second drive mechanism is used to drive the pen cap gripper assembly to rotate.

5. The ink coating device as described in claim 1, characterized in that, The rotating pen assembly is equipped with a pen presence / absence sensor for each pen placement position. The pen presence / absence sensor is used to detect whether the pen is present or absent at the pen placement position.

6. The ink coating device as claimed in claim 1, characterized in that, The feeding mechanism includes a fixture and a lifting mechanism. The fixture includes a placement platform and a positioning mechanism. The placement platform is used to place the screen, and the positioning mechanism is used to position the screen. The positioning mechanism includes a positioning block, a positioning cylinder, and a limiting block. The positioning cylinder is respectively located on one side of the placement platform in the first direction and on one side in the second direction. The positioning block is installed at the output end of the positioning cylinder. The limiting blocks are respectively located on the other side of the placement platform in the first direction and on the other side in the second direction. The positioning cylinder is used to drive the positioning block to move along the first direction and the second direction, respectively. The first direction and the second direction are perpendicular to each other on the horizontal plane. The lifting mechanism is located below the fixture, and its output end is connected to the fixture. The lifting mechanism is used to lift the fixture that is being transported to the ink coating position.

7. The ink coating device as described in claim 6, characterized in that, One corner of the placement platform is provided with a pen-pressing groove, which is used to press down the ink pen; and / or, One corner of the placement platform is equipped with an ink pen detection slot, which is used to detect the position of the ink pen.

8. The ink coating device as claimed in claim 1, characterized in that, The first conveying mechanism is disposed on the lower side of the mounting base plate, and the feeding mechanism is disposed on the upper side of the mounting base plate. The mounting base plate has two through slots extending along the X-axis and arranged side by side. The through slots penetrate the mounting base plate. The feeding mechanism is fixedly connected to the first conveying mechanism through a first connecting member disposed at the through slot. The first conveying mechanism includes a supporting base plate, a third driving mechanism, and an X-axis sliding assembly. The supporting base plate is fixedly connected to the mounting base plate. The third driving mechanism and the X-axis sliding assembly are disposed on the supporting base plate. The X-axis sliding assembly includes an X-axis slide rail extending along the X-axis direction disposed on the supporting base plate and an X-axis slider slidably disposed on the slide rail. The first connecting member is connected to the X-axis slider. The output end of the third driving mechanism is fixedly connected to a third connecting member. The third connecting member is fixedly connected between the X-axis slider and the first connecting member.

9. The ink coating device as claimed in claim 1, characterized in that, The second conveying mechanism includes a mounting bracket and a Y-axis linear module. The mounting bracket spans the mounting base plate along the Y-axis direction, and the Y-axis linear module is mounted on the mounting bracket. The ink coating mechanism also includes a Z-axis conveying mechanism, which is installed at the output end of the Y-axis linear module. The output end of the Z-axis conveying mechanism is connected to the clamping mechanism to drive the clamping mechanism to move along the Z-axis direction.

10. The ink coating apparatus as claimed in claim 9, characterized in that, The clamping mechanism includes a clamping jaw mounting plate, a fourth drive mechanism, and clamping jaws. The clamping jaw mounting plate is fixedly connected to the slider of the Z-axis conveying mechanism. The fourth drive mechanism is mounted on the clamping jaw mounting plate. The clamping jaws are connected to the output end of the fourth drive mechanism. The fourth drive mechanism is used to drive the clamping jaws to clamp or open.

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