Pad printing apparatus for printing at different positions and angles

Abstract

The application discloses a pad printing equipment for printing at different positions and angles, comprising a rack, an X-axis adjusting mechanism arranged on the rack, a Y-axis adjusting mechanism connected with a movable end of the X-axis adjusting mechanism, and a movement direction of the Y-axis adjusting mechanism being perpendicular to a movement direction of the X-axis adjusting mechanism; a pad printing assembly comprising a pad printing frame body and a pad printing rubber head, the pad printing frame body being connected with the movable end of the Y-axis adjusting mechanism, and the pad printing rubber head being vertically and movably connected with the pad printing frame body through a Z-axis adjusting mechanism; a positioning platform arranged on a workbench of the rack, a positioning jig for clamping a workpiece being arranged on the positioning platform, the positioning jig being rotatably arranged on the positioning platform, and a driving piece for driving the positioning jig to rotate being arranged on the positioning platform. The application solves the problem that the existing pad printing equipment cannot flexibly adjust the printing position and adapt to the printing demand of multiple positions, and realizes efficient and accurate printing on multiple different positions and angles of the workpiece.

Description

Technical Field

[0001] This application relates to the field of printing equipment technology, and in particular to a pad printing device for printing at different positions and angles. Background Technology

[0002] Pad printing machines are printing equipment that can be used to print on the surface of various irregularly shaped objects. They are widely used in products made of materials such as plastics, metals, glass, and ceramics.

[0003] Traditional pad printing equipment can usually only print in a fixed position. If the workpiece needs to be printed in multiple positions (such as different surfaces, different heights, and different angles), the workpiece or equipment needs to be manually adjusted, which is inefficient and has poor positioning accuracy. Although the printing position of the workpiece can be adjusted by adding workstations, this method has poor adjustment flexibility, the equipment structure is complex, and it is difficult to adapt to the multi-position printing needs of workpieces of different sizes and shapes.

[0004] Therefore, in response to the above problems, how to achieve efficient and accurate printing on workpieces at different positions and angles is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this application is to provide a pad printing device that prints at different positions and angles, solving the problem that existing pad printing devices cannot flexibly adjust the printing position and adapt to the needs of multi-position printing, and achieving efficient and accurate printing on workpieces at multiple different positions and angles.

[0006] To achieve the above objectives, this application provides a pad printing apparatus for printing at different positions and angles, comprising:

[0007] A frame is provided with an X-axis adjustment mechanism and a Y-axis adjustment mechanism connected to the movable end of the X-axis adjustment mechanism. The movement direction of the Y-axis adjustment mechanism is perpendicular to the movement direction of the X-axis adjustment mechanism.

[0008] The pad printing assembly includes a pad printing frame and a pad printing head. The pad printing frame is connected to the movable end of the Y-axis adjustment mechanism, and the pad printing head is vertically lifted and lowered to the pad printing frame via the Z-axis adjustment mechanism.

[0009] A positioning platform is provided on the worktable of the frame. The positioning platform is provided with a positioning fixture for clamping the workpiece. The positioning fixture is rotatably mounted on the positioning platform. The positioning platform is provided with a driving component for driving the positioning fixture to rotate.

[0010] Optionally, the frame includes a work frame and a plurality of support frames surrounding the work frame, and the positioning platform is rotatably mounted at the center of the work frame via a slewing bearing;

[0011] Multiple pad printing components are movably mounted on each of the support frames, and the pad printing head of each pad printing component is vertically suspended above the positioning platform, forming a printing station corresponding to the number of pad printing components.

[0012] Optionally, the X-axis adjustment mechanism includes an X-axis linear module disposed on the support frame;

[0013] The Y-axis adjustment mechanism includes a Y-axis linear module connected to the X-axis linear module via a slider or slide plate, wherein the guide rail direction of the Y-axis linear module is perpendicular to the guide rail direction of the X-axis linear module;

[0014] The Z-axis adjustment mechanism includes a Z-axis linear module or power cylinder mounted on the pad printing frame, and the movable end of the Z-axis adjustment mechanism is detachably connected to the pad printing head.

[0015] Optionally, the positioning fixture is rotatably mounted on the positioning platform via a bearing seat, and the driving component is a drive motor mounted on the positioning platform, with the output shaft of the drive motor being connected to the positioning fixture via a transmission connection.

[0016] Optionally, the positioning platform includes a fixed inner ring platform and a rotatable outer ring platform, the positioning fixture is located on the outer ring platform, the drive motor is located on the inner ring platform, and a steering gear is connected between the drive motor and the positioning fixture.

[0017] Optionally, the drive motor is movably mounted on the inner ring platform via a slide rail, with the output shaft of the drive motor facing the steering gear and being inserted into or removed from the steering gear under the guidance of the slide rail.

[0018] Optionally, the drive motor is a reversible motor, and the reversible angle is between 0° and 180°.

[0019] Optionally, the number of pad printing heads on the same pad printing assembly may be one or more.

[0020] Optionally, the outer side of the work frame is also provided with a loading and unloading station located between adjacent support frames for manual or automated loading and unloading on the positioning fixture.

[0021] Optionally, it also includes a control system, which inputs printing position parameters via a touch screen to drive the X-axis adjustment mechanism, the Y-axis adjustment mechanism, the Z-axis adjustment mechanism, and the drive components to perform corresponding actions.

[0022] The beneficial effect of this application is that by adjusting the position of the pad printing head in different dimensions through the X-axis adjustment mechanism, Y-axis adjustment mechanism and Z-axis adjustment mechanism, printing can be achieved at multiple different positions of the same workpiece. By driving the positioning fixture through the driving component, the printing angle of the workpiece can be changed, so that the pad printing head can print at different circumferential positions of the workpiece, thereby adapting to workpieces of different sizes and shapes, and meeting the printing needs of different workpieces at different positions and angles. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of a pad printing device for printing at different positions and angles, as provided in the embodiments of this application.

[0025] Figure 2 This is a schematic diagram of the drive component structure provided in an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the customized fixture and workpiece mating structure provided in the embodiments of this application;

[0027] Figure 4 This is a schematic diagram of the X-axis adjustment mechanism, Y-axis adjustment mechanism, and Z-axis adjustment mechanism provided in the embodiments of this application.

[0028] In the diagram: 1-Frame; 2-Pad printing assembly; 3-Positioning platform; 4-Driver; 5-X-axis adjustment mechanism; 6-Y-axis adjustment mechanism; 7-Control system; 8-Z-axis adjustment mechanism; 9-Workpiece;

[0029] 11-Work frame; 12-Support frame;

[0030] 21-Pad printing frame; 22-Pad printing pad;

[0031] 31-Inner ring platform; 32-Outer ring platform; 33-Positioning fixture; 34-Bearing housing;

[0032] 41-Slide rail; 42-Drive motor; 43-Steering gear. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that in this embodiment, the orientation or positional relationship indicated by terms such as "upper," "lower," "front," and "rear" is based on the orientation or positional relationship shown in the accompanying drawings. It is used only for the convenience of describing this application and for simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 4 As shown, in this embodiment, a pad printing device for printing at different positions and angles is provided. The device includes a frame 1, a pad printing assembly 2, and a positioning platform 3. The frame 1 is equipped with an X-axis adjustment mechanism 5 and a Y-axis adjustment mechanism 6. The Y-axis adjustment mechanism 6 is located at the movable end of the X-axis adjustment mechanism 5, thereby enabling the Y-axis adjustment mechanism 6 to move as a whole under the action of the X-axis adjustment mechanism 5. Similarly, the Y-axis adjustment mechanism 6 itself also has a movable end, and under the superimposed action of the X-axis adjustment mechanism 5, the movable end of the Y-axis adjustment mechanism 6 can move in both the X and Y directions.

[0037] Furthermore, the X and Y directions are two mutually perpendicular directions in the horizontal plane, meaning the movement direction of the X-axis adjustment mechanism 5 is perpendicular to the movement direction of the Y-axis adjustment mechanism 6. The pad printing assembly 2 includes a pad printing frame 21 and a pad printing head 22. The pad printing frame 21 is connected to the movable end of the Y-axis adjustment mechanism 6, thereby allowing the pad printing frame 21 to be movably positioned relative to the frame 1 in the X and Y directions. A Z-axis adjustment mechanism 8 is provided on the pad printing frame 21. The Z-axis adjustment mechanism 8 also has a movable end, but the movable end of the Z-axis adjustment mechanism 8 moves in the Z direction, thereby allowing the pad printing head 22 to form a vertical lifting connection with the pad printing frame 21 through the Z-axis adjustment mechanism 8. Based on this, in conjunction with the X-axis adjustment mechanism 5 and the Y-axis adjustment mechanism 6, the pad printing head 22 can be adjusted in three-dimensional space, thereby enabling printing at multiple different positions on the workpiece 9 without the need to change equipment or frequently adjust manually.

[0038] The positioning platform 3 is located on the worktable of the frame 1. The positioning platform 3 is equipped with a positioning fixture 33 for clamping the workpiece 9. The positioning fixture 33 is rotatably mounted on the positioning platform 3. Under the action of the positioning fixture 33, the workpiece 99 can be stably mounted on the positioning platform 3. At the same time, the positioning fixture 33 can be driven to rotate by the driving component 4, so that the workpiece 9 can be rotated at a certain angle, realizing the printing of the same workpiece 9 on different planes or curved surfaces.

[0039] The positioning fixture 33 can be a quick-changeable fixture, adaptable to the fixing of workpieces 9 of different shapes. After the workpiece 9 is clamped, it can be equipped with a locking mechanism to prevent the positioning fixture 33 and the workpiece 9 from shaking during rotation. The specific configuration of the positioning fixture 33 and the locking mechanism will not be described in detail here, but can be referred to in the prior art.

[0040] In summary, by adjusting the position of the pad printing head 22 in different dimensions through the X-axis adjustment mechanism 5, the Y-axis adjustment mechanism 6, and the Z-axis adjustment mechanism 8, printing can be achieved at multiple different positions on the same workpiece 9. Furthermore, by driving the positioning fixture 33 through the drive component 4, the printing angle of the workpiece 9 can be changed, allowing the pad printing head to print at different circumferential positions on the workpiece 9. This adapts to workpieces 9 of different sizes and shapes, and can meet the printing needs of different workpieces 9 at different positions and angles.

[0041] Please refer to Figure 1 The frame 1 includes a work frame 11 and multiple support frames 12 surrounding the work frame 11. The positioning platform 3 is rotatably mounted at the center of the work frame 11 via a slewing support bearing, so that the workpiece 9 can rotate to different work positions with the positioning platform 3.

[0042] Multiple pad printing components 2 are movably mounted on each support frame 12. The pad printing head 22 of each pad printing component 2 is vertically suspended above the positioning platform 3, thus forming a printing station on the positioning platform 3 corresponding to the number of pad printing components 2. When the workpiece 9 rotates with the positioning platform 3 to the position corresponding to the pad printing component 2, the workpiece 9 can be printed through the pad printing head 22 on the corresponding pad printing component 2. Thus, printing on the workpiece 9 is carried out by multiple pad printing components 2, improving printing efficiency and printing effect.

[0043] The X-axis adjustment mechanism 5 includes an X-axis linear module mounted on the support frame 12, and the Y-axis adjustment mechanism 6 includes a Y-axis linear module connected to the X-axis linear module via a slider or slide plate. The guide rail direction of the Y-axis linear module is perpendicular to the guide rail direction of the X-axis linear module. The linear module is driven by a servo motor and can precisely control the displacement of the printing head in the X and Y axes, with a displacement accuracy of ±0.01mm, meeting the printing requirements of different horizontal positions. Similarly, the Z-axis adjustment mechanism 8 can also use a linear module to ensure the displacement accuracy of the printing head 22 in the height direction. In addition, the Z-axis adjustment mechanism 8 can also use a power cylinder, such as a pneumatic cylinder or an electric cylinder, etc. There are no major restrictions here. The movable end of the Z-axis adjustment mechanism 8 is detachably connected to the printing head 22, which facilitates the replacement of different types of printing heads 22.

[0044] In some embodiments, the positioning fixture 33 is rotatably provided with the positioning platform 3 via the bearing seat 34, that is, the positioning fixture 33 itself has the function of clamping the workpiece 9, and at the same time, the positioning fixture 33 realizes the function of rotating relative to the positioning platform 3 via the bearing seat 34. The driving component 4 is a drive motor 42 provided on the positioning platform 3, and the output shaft of the drive motor 42 is connected to the positioning fixture 33 for transmission, thereby driving the positioning fixture 33 to rotate within a certain angle range.

[0045] Please refer to Figure 2 The positioning platform 3 includes a fixed inner ring platform 31 and a rotatable outer ring platform 32. The positioning fixture 33 is located on the outer ring platform 32, so that the positioning fixture 33 can rotate with the outer ring platform 32 to different work positions. The drive motor 42 is fixed on the inner ring platform 31. A steering gear 43 is connected between the drive motor 42 and the positioning fixture 33 to change the transmission direction of the drive motor 42, so that the drive motor 42 can stably transmit power with the positioning fixture 33.

[0046] It should be noted that the positioning platform 3 can also be a platform that rotates as a whole, that is, the drive motor 42 and the positioning fixture 33 rotate synchronously with the positioning platform 3, and the output shaft of the drive motor 42 always maintains a transmission connection with the positioning fixture 33.

[0047] When the drive motor 42 is set on the inner ring platform 31, the position of the drive motor 42 is relatively fixed to avoid safety hazards caused by the change of position of the drive motor 42. For example, when the output shaft of the drive motor 42 rotates to the loading station, it may affect the normal loading of materials by the workers. Therefore, this application sets the drive motor 42 in a fixed position, while the positioning fixture 33 can rotate with the outer ring platform 32.

[0048] However, considering that the drive motor 42 and the positioning fixture 33 need to rotate relative to each other, in order to achieve a stable transmission connection between the two at their corresponding positions, the drive motor 42 of this application is movably mounted on the inner ring platform 31 via a slide rail 41. The output shaft of the drive motor 42 faces the steering gear 43 and is inserted into or removed from the steering gear 43 under the guidance of the slide rail 41. That is, when the positioning fixture 33 rotates to the position of the drive motor 42, the drive motor 42 moves under the action of the slide rail 41, and its output shaft can be inserted into the steering gear 43, thereby enabling the drive motor 42 and the positioning fixture 33 to be connected in transmission. When the positioning fixture 33 needs to rotate with the outer ring platform 32, the drive motor 42 moves in the opposite direction under the action of the slide rail 41, and its output shaft exits the steering gear 43. At this time, the positioning fixture 33 can rotate with the outer ring platform 32 to the next work station.

[0049] Generally speaking, the workpiece 9 needs to have a certain printing range in its circumference. Therefore, the drive motor 42 of this application is set as a forward and reverse motor with a forward and reverse angle between 0° and 180°, so that the pad printing head 22 can print on the workpiece 9 within the circumference of 0°-180°. Of course, the rotation angle of the workpiece 9 can also be set according to the actual situation, including but not limited to 0°-180°.

[0050] Furthermore, the number of pad printing heads 22 on the same pad printing assembly 2 can be one or more, and each pad printing head 22 can be adjusted in the height direction through the Z-axis adjustment structure, thereby ensuring the printing efficiency of the workpiece 9.

[0051] In addition, there is a loading and unloading station on the outside of the work frame 11. The loading and unloading station is located between two adjacent support frames 12. The workpiece 9 can be installed or removed from the positioning fixture 33 by manual or automatic loading and unloading.

[0052] The equipment also includes a control system 7, which can be implemented by a PLC control program. The control system 7 can input printing position parameters (such as position coordinates and rotation angle) through a touch screen, thereby driving the X-axis adjustment mechanism 5, Y-axis adjustment mechanism 6, Z-axis adjustment mechanism 8, positioning platform 3 and drive component 4 to perform corresponding actions, achieving precise control of the printing position, supporting multiple preset printing position programs, and one-button start of continuous printing.

[0053] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0054] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A pad printing device for printing at different positions and angles, characterized in that, include: A frame (1) is provided with an X-axis adjustment mechanism (5) and a Y-axis adjustment mechanism (6) connected to the movable end of the X-axis adjustment mechanism (5). The movement direction of the Y-axis adjustment mechanism (6) is perpendicular to the movement direction of the X-axis adjustment mechanism (5). The pad printing assembly (2) includes a pad printing frame (21) and a pad printing head (22). The pad printing frame (21) is connected to the movable end of the Y-axis adjustment mechanism (6), and the pad printing head (22) is vertically lifted and lowered by the pad printing frame (21) through the Z-axis adjustment mechanism (8). A positioning platform (3) is provided on the worktable of the frame (1). The positioning platform (3) is provided with a positioning fixture (33) for clamping the workpiece (9). The positioning fixture (33) is rotatably mounted on the positioning platform (3). The positioning platform (3) is provided with a driving component (4) for driving the positioning fixture (33) to rotate.

2. The pad printing equipment for printing at different positions and angles according to claim 1, characterized in that, The frame (1) includes a work frame (11) and a plurality of support frames (12) surrounding the work frame (11), and the positioning platform (3) is rotatably mounted at the center of the work frame (11) via a slewing bearing. Multiple pad printing components (2) are movably mounted on each of the support frames (12), and the pad printing head (22) of each pad printing component (2) is vertically suspended above the positioning platform (3), forming a printing station corresponding to the number of pad printing components (2).

3. The pad printing equipment for printing at different positions and angles according to claim 2, characterized in that, The X-axis adjustment mechanism (5) includes an X-axis linear module disposed on the support frame (12); The Y-axis adjustment mechanism (6) includes a Y-axis linear module connected to the X-axis linear module via a slider or a slide plate, wherein the guide rail direction of the Y-axis linear module is perpendicular to the guide rail direction of the X-axis linear module; The Z-axis adjustment mechanism (8) includes a Z-axis linear module or power cylinder disposed on the pad printing frame (21), and the movable end of the Z-axis adjustment mechanism (8) is detachably connected to the pad printing head (22).

4. The pad printing equipment for printing at different positions and angles according to claim 2, characterized in that, The positioning fixture (33) is rotatably mounted on the positioning platform (3) via a bearing seat (34). The driving component (4) is a drive motor (42) mounted on the positioning platform (3). The output shaft of the drive motor (42) is connected to the positioning fixture (33) via a transmission.

5. The pad printing equipment for printing at different positions and angles according to claim 4, characterized in that, The positioning platform (3) includes a fixed inner ring platform (31) and a rotatable outer ring platform (32). The positioning fixture (33) is located on the outer ring platform (32), and the drive motor (42) is located on the inner ring platform (31). A steering gear (43) is connected between the drive motor (42) and the positioning fixture (33).

6. The pad printing equipment for printing at different positions and angles according to claim 5, characterized in that, The drive motor (42) is movably mounted on the inner ring platform (31) via the slide rail (41). The output shaft of the drive motor (42) faces the steering gear (43) and is inserted into or removed from the steering gear (43) under the guidance of the slide rail (41).

7. The pad printing equipment for printing at different positions and angles according to claim 4, characterized in that, The drive motor (42) is a forward and reverse motor, and the forward and reverse angle is between 0° and 180°.

8. The pad printing equipment for printing at different positions and angles according to claim 1, characterized in that, The number of pad printing heads (22) on the same pad printing assembly (2) is one or more.

9. The pad printing equipment for printing at different positions and angles according to claim 2, characterized in that, The work frame (11) is also provided with loading and unloading stations located between adjacent support frames (12) on the outside, for manual or automated loading and unloading on the positioning fixture (33).

10. The pad printing equipment for printing at different positions and angles according to claim 1, characterized in that, It also includes a control system (7), which inputs printing position parameters through a touch screen to drive the X-axis adjustment mechanism (5), the Y-axis adjustment mechanism (6), the Z-axis adjustment mechanism (8) and the drive unit (4) to perform corresponding actions.

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