Pad printing apparatus

Abstract

The utility model relates to a pad printing technical field, concretely relates to a pad printing device. Its bearing station is located on the work table, can bear the workpiece of printing, the ink supply mechanism's ink supply platform is located in the bearing station one side, the printing plate is along the first direction and is located on the ink supply platform, the first translation adjusting assembly and the rotation adjusting assembly of adjusting mechanism all are connected with the ink supply platform, the first translation adjusting assembly can drive the ink supply platform removes along the first direction, the rotation adjusting assembly can drive the ink supply platform rotates, the second translation adjusting assembly of pad printing mechanism is connected with the pad printing rubber head, can drive the pad printing rubber head removes between the printing plate and the workpiece of printing along the second direction, the detection mechanism can detect the image information of printing plate, and according to the image information obtains the adjusting parameter of the first translation adjusting assembly, the rotation adjusting assembly and the second translation adjusting assembly, the control mechanism is according to the adjusting parameter of detection mechanism acquisition corresponding control first translation adjusting assembly, the rotation adjusting assembly and the second translation adjusting assembly, thereby corrects the deviation of printing plate.

Description

Technical Field

[0001] This utility model relates to the field of pad printing technology, and in particular to a pad printing device. Background Technology

[0002] A pad printing device is a piece of equipment used for pad printing in industrial production. It typically includes key components such as a pad printing module and an ink supply module. The ink supply module applies ink to the printing plate within the module, and the pad printing module drives the printing head to move between the printing plate and the workpiece to be printed, thereby performing the pad printing operation on the workpiece.

[0003] After a certain period of use, printing plates usually need to be replaced. In order to calibrate the installation deviation of the printing plate, existing pad printing devices require manual calibration of the printing plate by visual inspection and experience after each installation to avoid deviations in the printed pattern. This calibration method is inefficient and prone to errors. Utility Model Content

[0004] This utility model provides a pad printing device to solve the problems of low efficiency and easy error caused by manual calibration of printing plates by observation and experience in the prior art.

[0005] This utility model discloses a pad printing device, comprising: a worktable; a support platform disposed on the worktable for supporting the workpiece to be printed; an ink supply mechanism including a printing plate and an ink supply platform, the ink supply platform being located on one side of the support platform, and the printing plate being disposed on the ink supply platform along a first direction; and an adjustment mechanism. It includes a first translation adjustment component and a rotation adjustment component, both of which are connected to the ink supply platform. The first translation adjustment component drives the ink supply platform to move along a first direction, and the rotation adjustment component drives the ink supply platform to rotate. A pad printing mechanism, disposed on the worktable, includes a pad printing head and a second translation adjustment component, the second translation adjustment component being connected to the pad printing head and used to drive the pad printing head to move along a second direction between the printing plate and the workpiece to be printed. A detection mechanism, disposed on the worktable, is used to detect image information of the printing plate and obtain adjustment parameters for the first translation adjustment component, the rotation adjustment component, and the second translation adjustment component based on the image information. A control mechanism, disposed on the worktable, is used to control the first translation adjustment component, the rotation adjustment component, and the second translation adjustment component according to the adjustment parameters obtained by the detection mechanism to correct deviations.

[0006] Optionally, the adjustment mechanism further includes a base plate and an adjustment plate. The base plate is fixedly mounted on the worktable, and the adjustment plate is slidably mounted on the base plate along the first direction. The ink supply platform is rotatably connected to the adjustment plate via a shaft. The first translation adjustment component connects the ink supply platform and the base plate and is used to drive the adjustment plate to move relative to the base plate along the first direction, thereby driving the ink supply platform to move along the first direction. The rotation adjustment component connects the adjustment plate and the ink supply platform and is used to drive the ink supply platform to rotate relative to the adjustment plate.

[0007] Optionally, the adjustment mechanism further includes a locking member, which connects the adjustment plate and the base plate and is used to lock or unlock the adjustment plate and the base plate.

[0008] Optionally, the substrate is provided with an adjustment hole along the first direction, and the locking member includes a body and a locking rod. One end of the locking rod is connected to the body, and the other end passes through the adjustment hole and is connected to the adjustment plate. The body can move closer to or further away from the substrate along the locking rod to clamp or release the adjustment plate and the substrate. When the body moves away from the substrate, the adjustment hole can cooperate with the locking rod to define the movement path of the adjustment plate in the first direction.

[0009] Optionally, a first pressure plate and a second pressure plate are respectively provided at different ends on both sides of the adjustment plate. The first pressure plate is provided with a pressure block located on one side of the ink supply platform. The rotation adjustment assembly includes an elastic element and a linear drive element. The linear drive element is installed on the side of the ink supply platform away from the pressure block. The output shaft of the linear drive element abuts against the second pressure plate and is used to drive the ink supply platform to rotate toward the side of the second pressure plate. The two ends of the elastic element are respectively connected to the pressure block and the ink supply platform. The elastic element is configured such that when the output shaft of the linear drive element disengages from the second pressure plate, it releases energy to drive the ink supply platform to rotate toward the side away from the second pressure plate.

[0010] Optionally, positioning marks are provided at both ends of the printing plate, and the detection mechanism includes two detection cameras, which are respectively located above both ends of the printing plate, for detecting the positioning marks to obtain the adjustment parameters.

[0011] Optionally, the ink supply mechanism further includes a translation drive assembly and an ink reservoir. The translation drive assembly is located on one side of the ink supply platform and connected to the ink reservoir, and is used to drive the ink reservoir to move along the printing plate to infuse ink onto the printing plate.

[0012] Optionally, the pad printing mechanism further includes a lifting assembly, which is connected to the second translation adjustment assembly. The pad printing head is mounted on the lifting assembly, and the lifting assembly is used to drive the pad printing head to move up and down.

[0013] Optionally, the pad printing apparatus further includes an ink cleaning mechanism, which is installed between the support platform and the ink supply mechanism to remove residual ink from the pad printing head.

[0014] Optionally, the ink cleaning mechanism includes a cleaning table, a first rotating wheel and a second rotating wheel disposed at both ends of the cleaning table, and a rotating motor that is hygienically connected to the second rotating wheel. The rotating motor is used to drive the cleaning adhesive paper on the first rotating wheel to wind towards the second rotating wheel. The adhesive side of the cleaning adhesive paper contacts the pad printing head on the cleaning table to clean the residual ink on the pad printing head.

[0015] The beneficial effects of the pad printing device provided in this embodiment of the utility model are as follows: Both the first translation adjustment component and the rotation adjustment component are connected to the ink supply platform. The first translation adjustment component can drive the ink supply platform to move along a first direction, thereby adjusting the positional deviation of the printing plate in the first direction. The rotation adjustment component can drive the ink supply platform to rotate, thereby adjusting the angular deviation of the printing plate. Furthermore, the second translation adjustment component is connected to the pad printing head, enabling it to move along a second direction between the printing plate and the workpiece to be printed, thereby transferring the pad printing pattern from the printing plate to the workpiece. Thus, the positional deviation of the printing plate in the second direction can be compensated by adjusting the movement distance of the pad printing head in the second direction. Since the position of the support platform is fixed, the positional deviation of the printing plate in the second direction can be compensated by adjusting the movement distance of the pad printing head in the second direction using the second translation adjustment component. The detection mechanism is located on the workbench and can detect the image information of the printing plate after it is installed on the ink supply platform. It compares the image information with a pre-stored standard image to obtain the adjustment parameters of the first translation adjustment component, the rotation adjustment component, and the second translation adjustment component. This allows the control mechanism to automatically control the first translation adjustment component, the rotation adjustment component, and the second translation adjustment component to move accordingly based on the adjustment parameters obtained by the detection mechanism. This enables the printing plate's positional deviation to be calibrated quickly and conveniently, ensuring the accuracy of the printing process. Attached Figure Description

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is one of the schematic diagrams of the pad printing device provided in this embodiment of the utility model; Figure 2 yes Figure 1 A magnified view of position A in the middle; Figure 3 This is a second schematic diagram of the pad printing device provided in this embodiment of the utility model; Figure 4 This is one of the schematic diagrams of the ink supply mechanism and adjustment mechanism provided in this embodiment of the utility model; Figure 5 This is a second schematic diagram of the ink supply mechanism and adjustment mechanism provided in this embodiment of the utility model; Figure 6 This is one of the cross-sectional views of the ink supply mechanism and the adjustment mechanism provided in the embodiments of this utility model; Figure 7 This is a second cross-sectional view of the ink supply mechanism and adjustment mechanism provided in this embodiment of the utility model; Figure 8 This is a schematic diagram of the ink cleaning mechanism provided in an embodiment of the present invention.

[0017] The labels for the attached figures are as follows: 100. Pad printing device; 1. Worktable; 11. Mounting bracket; 111. First mounting arm; 112. Second mounting arm; 113. Connecting arm; 2. Support platform; 3. Ink supply mechanism; 31. Printing plate; 311. Positioning mark; 32. Ink supply platform; 33. Translation drive assembly; 34. Ink container; 4. Adjustment mechanism; 41. First translation adjustment assembly; 42. Rotation adjustment assembly; 421. Elastic element; 422. Linear drive element; 43. Substrate; 431. 44. Adjustment hole; 44. Adjustment plate; 441. First pressure plate; 442. Pressure block; 443. Second pressure plate; 45. Locking component; 451. Main body; 452. Locking rod; 5. Pad printing mechanism; 51. Pad printing head; 52. Second translation adjustment assembly; 53. Lifting assembly; 6. Detection mechanism; 61. Detection camera; 7. Control mechanism; 8. Ink cleaning mechanism; 81. Cleaning table; 82. First rotating wheel; 83. Second rotating wheel; 84. Rotary motor. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] This utility model embodiment provides a pad printing device 100, such as Figures 1 to 8As shown, the pad printing device 100 includes a worktable 1, a support platform 2, an ink supply mechanism 3, an adjustment mechanism 4, a pad printing mechanism 5, a detection mechanism 6, and a control mechanism 7. The support platform 2 is mounted on the worktable 1 and is used to support the workpiece to be printed. The ink supply mechanism 3 includes a printing plate 31 and an ink supply platform 32. The ink supply platform 32 is located on one side of the support platform 2, and the printing plate 31 is mounted on the ink supply platform 32 along a first direction. The adjustment mechanism 4 includes a first translation adjustment component 41 and a rotation adjustment component 42, both of which are connected to the ink supply platform 32. The first translation adjustment component 41 drives the ink supply platform 32 to move along the first direction, and the rotation adjustment component 42 drives the ink supply platform 32 to rotate. The pad printing mechanism 5 is mounted on the worktable 1 and includes a pad printing head 5. The first translation adjustment component 41 and the second translation adjustment component 52 are connected to the printing head 51 and are used to drive the printing head 51 to move along the second direction between the printing plate 31 and the workpiece to be printed. The detection mechanism 6 is set on the worktable 1 and is used to detect the image information of the printing plate 31 and obtain the adjustment parameters of the first translation adjustment component 41, the rotation adjustment component 42 and the second translation adjustment component 52 according to the image information. The control mechanism 7 is set on the worktable 1 and is used to control the first translation adjustment component 41, the rotation adjustment component 42 and the second translation adjustment component 52 according to the adjustment parameters obtained by the detection mechanism 6 to correct the deviation.

[0020] Specifically, the worktable 1 provides space and stable support for the support platform 2, the ink supply mechanism 3, the adjustment mechanism 4, the pad printing mechanism 5, the detection mechanism 6, and the control mechanism 7, enabling the various mechanisms of the pad printing device 100 to cooperate and perform stable pad printing operations. The support platform 2 is located on the worktable 1 and is used to support the workpiece to be printed, ensuring the accuracy of the workpiece's placement. The ink supply platform 32 of the ink supply mechanism 3 is located on one side of the support platform 2, and the printing plate 31 is along the first direction ( Figure 1 The X direction of the ink supply platform 32 is provided on the ink supply platform 32, and the printing plate 31 can provide the pad printing pattern.

[0021] The pad printing mechanism 5 includes a pad printing head 51 and a second translation adjustment assembly 52. ​​The second translation adjustment assembly 52 is connected to the pad printing head 51 and is used to drive the pad printing head 51 to move along a second direction between the printing plate 31 and the workpiece to be printed. Figure 1 The pad 51 moves in the Y direction so that it can adhere to the pad pattern on the printing plate 31 and print the pad pattern onto the workpiece to be printed.

[0022] Both the first translation adjustment component 41 and the rotation adjustment component 42 of the adjustment mechanism 4 are connected to the ink supply platform 32. The first translation adjustment component 41 can drive the ink supply platform 32 to move along the first direction, and the rotation adjustment component 42 can drive the ink supply platform 32 to rotate. Thus, the positional deviation of the printing plate 31 in the first direction can be adjusted by the first translation adjustment component 41, and the angular deviation of the printing plate 31 can be adjusted by the rotation adjustment component 42. It can be understood that since the position of the carrier platform 2 is fixed, and during the pad printing operation, the second translation adjustment component 52 needs to drive the pad printing head 51 to move along the second direction between the printing plate 31 and the workpiece to be printed, the second translation adjustment component 52 can be used to adjust the moving distance of the pad printing head 51 in the second direction to compensate for the positional deviation of the printing plate 31 in the second direction.

[0023] After the printing plate 31 is installed on the ink supply platform 32, the detection mechanism 6 can directly detect the image information of the printing plate 31 and compare it with the internally stored standard image to obtain the adjustment parameters of the first translation adjustment component 41, the rotation adjustment component 42 and the second translation adjustment component 52. This allows the control mechanism 7 to automatically control the first translation adjustment component 41, the rotation adjustment component 42 and the second translation adjustment component 52 to move accordingly based on the adjustment parameters obtained by the detection mechanism 6. This allows for quick and convenient precise calibration of the positional deviation of the printing plate 31, ensuring the accuracy of the printing process.

[0024] It is worth mentioning that the worktable 1 is provided with a mounting frame 11, which includes a first mounting arm 111, a second mounting arm 112, and a connecting arm 113. The first mounting arm 111 is located on the worktable 1 and is positioned opposite to the second mounting arm 112. One end of the connecting arm 113 is connected to the first mounting arm 111, and the other end is connected to the second mounting arm 112. The ink supply mechanism 3 and the pad printing mechanism 5 are respectively mounted on the opposite walls of the first mounting arm 111 and the second mounting arm 112, and the detection mechanism 6 and the control mechanism 7 are located on the side wall of the second mounting arm 112. Thus, with the help of the mounting frame 11, the ink supply mechanism 3, the pad printing mechanism 5, the adjustment mechanism 4, the detection mechanism 6, and the control mechanism 7 can be integrated and mounted on the mounting frame 11, which is beneficial for the close cooperation between the various mechanisms of the pad printing device 100.

[0025] As one specific implementation method in some embodiments of this utility model, such as Figures 2 to 3As shown, the adjustment mechanism 4 also includes a base plate 43 and an adjustment plate 44. The base plate 43 is fixed on the worktable 1, and the adjustment plate 44 is slidably mounted on the base plate 43 along the first direction. The ink supply platform 32 is rotatably connected to the adjustment plate 44 via a shaft. The first translation adjustment component 41 connects the ink supply platform 32 and the base plate 43 and is used to drive the adjustment plate 44 to move relative to the base plate 43 along the first direction, so as to drive the ink supply platform 32 to move along the first direction. The rotation adjustment component 42 connects the adjustment plate 44 and the ink supply platform 32 and is used to drive the ink supply platform 32 to rotate relative to the adjustment plate 44.

[0026] Specifically, the substrate 43 is fixed on the worktable 1, and the adjusting plate 44 is slidably mounted on the substrate 43 along the first direction. The ink supply platform 32 is rotatably connected to the adjusting plate 44 via a shaft. This allows for layered movement between the substrate 43, the adjusting plate 44, and the ink supply platform 32, preventing mutual interference between the positional and angular deviation adjustments of the printing plate 31 in the first direction and ensuring adjustment accuracy. Specifically, the first translation adjustment component 41 connects the ink supply platform 32 and the substrate 43. When the first translation adjustment component 41 is working, the adjusting plate 44 moves relative to the substrate 43 along the first direction, and the ink supply platform 32 moves along the first direction with the adjusting plate 44, thereby adjusting the positional deviation of the printing plate 31 in the first direction. The rotation adjustment component 42 connects the adjusting plate 44 and the ink supply platform 32. When the rotation adjustment component 42 is working, the adjusting plate 44 remains stationary relative to the substrate 43, while the ink supply platform 32 rotates relative to the adjusting plate 44, thereby adjusting the angular deviation of the printing plate 31.

[0027] As one specific implementation method in some embodiments of this utility model, such as Figures 2 to 3 As shown, the adjustment mechanism 4 also includes a locking member 45, which connects the adjustment plate 44 and the base plate 43 and is used to lock or unlock the adjustment plate 44 and the base plate 43.

[0028] Specifically, the locking member 45 connects the adjusting plate 44 and the substrate 43, and can lock or unlock the adjusting plate 44 and the substrate 43. When the locking member 45 unlocks the adjusting plate 44 and the substrate 43, the first translation adjustment component 41 can drive the adjusting plate 44 to move relative to the substrate 43 along a first direction, thereby causing the ink supply platform 32 to move along the first direction. After the first translation adjustment component 41 has completed its adjustment, the locking member 45 can lock the adjusting plate 44 and the substrate 43 to ensure that the adjusting plate 44 can be stably maintained in the adjusted position.

[0029] Preferably, two locking members 45 are provided, and the two locking members 45 are respectively connected to two diagonally opposite corners of the adjusting plate 44 and the base plate 43. With this arrangement, the two locking members 45 can cooperate to lock the two diagonally opposite corners of the adjusting plate 44 and the base plate 43 at the same time, thereby increasing the stability of the locking of the adjusting plate 44 and the base plate 43.

[0030] As one specific implementation method in some embodiments of this utility model, such as Figures 2 to 3 As shown, the substrate 43 is provided with an adjustment hole 431 along the first direction. The locking member 45 includes a main body 451 and a locking rod 452. One end of the locking rod 452 is connected to the main body 451, and the other end passes through the adjustment hole 431 and is connected to the adjustment plate 44. The main body 451 can move closer to or further away from the substrate 43 along the locking rod 452 to clamp or release the adjustment plate 44 and the substrate 43. When the main body 451 moves away from the substrate 43, the adjustment hole 431 can cooperate with the locking rod 452 to define the movement path of the adjustment plate 44 in the first direction.

[0031] Specifically, the substrate 43 has an adjustment hole 431 along the first direction, and the adjustment hole 431 is an oblong hole. One end of the locking rod 452 is connected to the main body 451, and the other end passes through the adjustment hole 431 and is connected to the adjustment plate 44. Thus, when the main body 451 approaches the substrate 43 along the locking rod 452, the main body 451 can abut against the bottom of the substrate 43, thereby quickly clamping the adjustment plate 44 and the substrate 43 in cooperation with the locking rod 452. When the main body 451 moves away from the substrate 43 along the locking rod 452, the adjustment plate 44 and the substrate 43 can be released, so that the entire clamping and releasing process does not require complete disassembly of the locking member 45, improving the adjustment efficiency.

[0032] Furthermore, when the main body 451 is away from the substrate 43, the locking rod 452 still passes through the adjustment hole 431. Therefore, when the first translation adjustment assembly 41 drives the adjustment plate 44, the locking rod 452 can slide within the adjustment hole 431 along the first direction, thereby limiting the movement path of the adjustment plate 44 relative to the substrate 43 in the first direction and guiding the movement of the adjustment plate 44, achieving linear guidance adjustment and ensuring the stability of the movement of the adjustment plate 44. In other words, by implementing this embodiment, the locking member 45, in conjunction with the adjustment hole 431, can achieve the dual functions of locking the adjustment plate 44 and the substrate 43, as well as guiding the movement of the adjustment plate 44. This eliminates the need for additional guide rails or grooves in the pad printing apparatus 100, simplifying its structure and reducing manufacturing and assembly costs.

[0033] As one specific implementation method in some embodiments of this utility model, such as Figures 2 to 3As shown, a first pressure plate 441 and a second pressure plate 443 are respectively provided at different ends on both sides of the adjustment plate 44. A pressure block 442 located on one side of the ink supply platform 32 is provided on the first pressure plate 441. The rotation adjustment assembly 42 includes an elastic element 421 and a linear drive element 422. The linear drive element 422 is installed on the side of the ink supply platform 32 away from the pressure block 442. The output shaft of the linear drive element 422 abuts against the second pressure plate 443 and is used to drive the ink supply platform 32 to rotate toward the side of the second pressure plate 443. The two ends of the elastic element 421 are respectively connected to the pressure block 442 and the ink supply platform 32. The elastic element 421 is configured such that when the output shaft of the linear drive element 422 is disengaged from the second pressure plate 443, it releases energy to drive the ink supply platform 32 to rotate toward the side away from the second pressure plate 443.

[0034] Specifically, a first pressure plate 441 and a second pressure plate 443 are respectively provided at different ends on both sides of the adjusting plate 44. A linear drive 422 is installed on the side of the ink supply platform 32 away from the pressure plate 442. The output shaft of the linear drive 422 abuts against the second pressure plate 443. The two ends of the elastic member 421 are respectively connected to the pressure plate 442 and the ink supply platform 32. With this configuration, as long as the output shaft of the linear drive 422 continuously abuts against the second pressure plate 443, the ink supply can be stably maintained at the required angle. The driving current of the linear drive 422 can be reduced to the holding current or even zero power consumption self-locking, effectively reducing power consumption. Moreover, the output shaft of the linear drive 422 can drive the ink supply platform 32 to rotate in both directions by extending and retracting, in conjunction with the energy release of the elastic member 421, thereby adjusting the angular deviation of the printing plate 31.

[0035] Specifically, when the output shaft of the linear drive 422 extends toward the second pressure plate 443, the adjusting plate 44 is locked onto the base plate 43 by the locking member 45. The linear drive 422 then acts in the opposite direction on the ink supply platform 32, causing it to rotate toward the second pressure plate 443. When the output shaft of the linear drive 422 retracts and disengages from the second pressure plate 443, the pressure exerted by the output shaft on the second pressure plate 443 is released, and the elastic member 421 releases energy, thereby driving the ink supply platform 32 to rotate toward the side away from the second pressure plate 443.

[0036] In another embodiment, the rotation adjustment component 42 can also be a direct-pressure motor, with the output shaft of the direct-pressure motor directly fixed to one side of the ink platform 32. By extending and retracting the output shaft of the direct-pressure motor, the ink supply platform 32 can be directly driven to rotate in both directions, thereby adjusting the angle deviation of the printing plate 31.

[0037] As one specific implementation method in some embodiments of this utility model, such as Figures 2 to 3As shown, positioning marks 311 are provided at both ends of the printing plate 31. The detection mechanism 6 includes two detection cameras 61, which are located above both ends of the printing plate 31 respectively, and are used to detect the positioning marks 311 in order to obtain adjustment parameters.

[0038] Specifically, positioning marks 311 are provided at both ends of the printing plate 31, and two detection cameras 61 are respectively located above the two ends of the printing plate 31. The two detection cameras 61 can simultaneously detect the positioning marks 311 at both ends of the printing plate 31, ensuring that the detection cameras 61 can accurately obtain the actual image information of the printing plate 31 and perform a double comparison with the internally stored standard image, thereby ensuring the accuracy of the obtained adjustment parameters.

[0039] As one specific implementation method in some embodiments of this utility model, such as Figures 2 to 3 As shown, the ink supply mechanism 3 also includes a translation drive assembly 33 and an ink container 34. The translation drive assembly 33 is located on one side of the ink supply platform 32 and is connected to the ink container. It is used to drive the ink container to move along the printing plate 31 to apply ink to the printing plate 31.

[0040] Specifically, the translation drive component 33 is located on one side of the ink supply platform 32 and is connected to the ink reservoir. Thus, the translation drive component 33 can drive the ink reservoir to move along the printing plate 31, thereby enabling the ink reservoir to apply ink to the printing plate 31 to form a pad printing pattern on the printing plate 31.

[0041] As one specific implementation method in some embodiments of this utility model, such as Figures 2 to 3 As shown, the pad printing mechanism 5 also includes a lifting assembly 53, which is connected to the second translation adjustment assembly 52. ​​The pad printing head 51 is mounted on the lifting assembly 53, and the lifting assembly 53 is used to drive the pad printing head 51 to rise and fall.

[0042] Specifically, the lifting assembly 53 is connected to the second translation adjustment assembly 52, and the pad printing head 51 is disposed on the lifting assembly 53. The lifting assembly 53 can cooperate with the second translation adjustment assembly 52 to drive the pad printing head 51 to move and lift, so that the pad printing head 51 can adhere to the pad printing pattern on the printing plate 31 and print the pad printing pattern on the workpiece to be printed.

[0043] As one specific implementation method in some embodiments of this utility model, such as Figures 2 to 3 As shown, the pad printing apparatus 100 also includes an ink cleaning mechanism 8, which is installed between the support platform 2 and the ink supply mechanism 3, and is used to remove residual ink on the pad printing head 51.

[0044] Specifically, after each printing of a pattern onto the workpiece by the pad printing head 51, ink residue remains on the pad printing head 51. The ink cleaning mechanism 8 effectively removes this residual ink, preventing it from negatively impacting subsequent printing. Furthermore, the ink cleaning mechanism 8 is positioned between the carrier platform 2 and the ink supply mechanism 3, allowing the pad printing head 51 to remove residual ink during its return journey to the printing plate 31. Therefore, compared to embodiments where the ink cleaning mechanism 8 is located elsewhere, positioning it between the carrier platform 2 and the ink supply mechanism 3 effectively reduces the travel distance of the pad printing head 51, improving the printing efficiency of the pad printing apparatus 100.

[0045] As one specific implementation method in some embodiments of this utility model, such as Figures 2 to 3 As shown, the ink cleaning mechanism 8 includes a cleaning table 81, a first rotating wheel 82 and a second rotating wheel 83 respectively disposed at both ends of the cleaning table 81, and a rotating motor 84 that is connected to the second rotating wheel 83 for transmission. The rotating motor 84 is used to drive the cleaning adhesive paper on the first rotating wheel 82 to wind towards the second rotating wheel 83. The adhesive side of the cleaning adhesive paper contacts the pad printing head 51 on the cleaning table 81 to clean the residual ink on the pad printing head 51.

[0046] Specifically, a cleaning adhesive tape roll is fitted onto the first rotary wheel 82, and the cleaning adhesive tape can extend onto the cleaning table 81. This allows the pad printing head 51 to move onto the cleaning table 81 under the drive of the second translation adjustment component 52 after printing the workpiece. By pressing down on the cleaning adhesive tape, it contacts the adhesive surface of the cleaning adhesive tape, thereby cleaning the residual ink on the pad printing head 51. This prevents the pad printing head 51 from affecting subsequent ink application operations, ensuring that the pad printing head 51 can accurately adhere to the printed pattern, thereby improving the printing quality of the pad printing device 100.

[0047] In addition, the second roller 83 is located at the other end of the cleaning table 81 and can wind up the cleaning tape segment that has completed the cleaning operation. The third rotating motor 84 is connected to the second roller 83. Thus, by driving the third rotating motor 84, the second roller 83 can be driven to rotate. This allows the cleaning tape on the first roller 82 to continuously move to the cleaning table 81 while the cleaning tape that has completed the cleaning operation is being collected from the cleaning table 81, so as to maintain the continuity of the cleaning operation of the pad printing head 51.

[0048] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A pad printing device, characterized in that, include: Workbench; A support platform, which is set on the worktable, is used to support the workpiece to be printed; An ink supply mechanism includes a printing plate and an ink supply platform, wherein the ink supply platform is located on one side of the support platform, and the printing plate is disposed on the ink supply platform along a first direction; The adjustment mechanism includes a first translation adjustment component and a rotation adjustment component. Both the first translation adjustment component and the rotation adjustment component are connected to the ink supply platform. The first translation adjustment component is used to drive the ink supply platform to move along the first direction, and the rotation adjustment component is used to drive the ink supply platform to rotate. A pad printing mechanism, which is disposed on the worktable, includes a pad printing head and a second translation adjustment assembly. The second translation adjustment assembly is connected to the pad printing head and is used to drive the pad printing head to move along a second direction between the printing plate and the workpiece to be printed. The detection mechanism, which is set on the workbench, is used to detect the image information of the printing plate and obtain the adjustment parameters of the first translation adjustment component, the rotation adjustment component and the second translation adjustment component based on the image information; A control mechanism, located on the workbench, is used to control the first translation adjustment component, the rotation adjustment component, and the second translation adjustment component according to the adjustment parameters obtained by the detection mechanism, so as to correct the deviation.

2. The pad printing apparatus according to claim 1, characterized in that, The adjustment mechanism further includes a base plate and an adjustment plate. The base plate is fixed on the worktable, and the adjustment plate is slidably mounted on the base plate along the first direction. The ink supply platform is rotatably connected to the adjustment plate via a shaft. The first translation adjustment component connects the ink supply platform and the base plate and is used to drive the adjustment plate to move relative to the base plate along the first direction, thereby driving the ink supply platform to move along the first direction. The rotation adjustment component connects the adjustment plate and the ink supply platform and is used to drive the ink supply platform to rotate relative to the adjustment plate.

3. The pad printing apparatus according to claim 2, characterized in that, The adjustment mechanism further includes a locking member, which connects the adjustment plate and the base plate and is used to lock or unlock the adjustment plate and the base plate.

4. The pad printing apparatus according to claim 3, characterized in that, The substrate is provided with an adjustment hole along the first direction. The locking member includes a body and a locking rod. One end of the locking rod is connected to the body, and the other end passes through the adjustment hole and is connected to the adjustment plate. The body can move closer to or further away from the substrate along the locking rod to clamp or release the adjustment plate and the substrate. When the body moves away from the substrate, the adjustment hole can cooperate with the locking rod to define the movement path of the adjustment plate in the first direction.

5. The pad printing apparatus according to claim 3, characterized in that, The adjustment plate has a first pressure plate and a second pressure plate at different ends on both sides. The first pressure plate has a pressure block located on one side of the ink supply platform. The rotation adjustment assembly includes an elastic element and a linear drive element. The linear drive element is installed on the side of the ink supply platform away from the pressure block. The output shaft of the linear drive element abuts against the second pressure plate and is used to drive the ink supply platform to rotate toward the side of the second pressure plate. The two ends of the elastic element are respectively connected to the pressure block and the ink supply platform. The elastic element is configured such that when the output shaft of the linear drive element disengages from the second pressure plate, it releases energy to drive the ink supply platform to rotate toward the side away from the second pressure plate.

6. The pad printing apparatus according to claim 1, characterized in that, Positioning marks are provided at both ends of the printing plate. The detection mechanism includes two detection cameras, which are respectively located above both ends of the printing plate, for detecting the positioning marks to obtain the adjustment parameters.

7. The pad printing apparatus according to any one of claims 1-6, characterized in that, The ink supply mechanism also includes a translation drive component and an ink container. The translation drive component is located on one side of the ink supply platform and connected to the ink container, and is used to drive the ink container to move along the printing plate to infuse ink onto the printing plate.

8. The pad printing apparatus according to any one of claims 1-6, characterized in that, The pad printing mechanism further includes a lifting assembly, which is connected to the second translation adjustment assembly. The pad printing head is mounted on the lifting assembly, and the lifting assembly is used to drive the pad printing head to move up and down.

9. The pad printing apparatus according to any one of claims 1-6, characterized in that, It also includes an ink cleaning mechanism, which is installed between the support platform and the ink supply mechanism to remove residual ink from the pad printing head.

10. The pad printing apparatus according to claim 9, characterized in that, The ink cleaning mechanism includes a cleaning table, a first rotating wheel and a second rotating wheel disposed at both ends of the cleaning table, and a rotating motor that is hygienically connected to the second rotating wheel. The rotating motor is used to drive the cleaning adhesive paper on the first rotating wheel to wind towards the second rotating wheel. The adhesive side of the cleaning adhesive paper contacts the pad printing head on the cleaning table to clean the residual ink on the pad printing head.

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