Anti-deviation device of digital printer for digital printing

Abstract

The utility model discloses an anti-deviation device of a digital printer for digital printing, which comprises a base, a cover plate for placing a printing piece main body is fixed on the outer wall of the top of the base, a printing part for carrying out digital printing on the printing piece main body is arranged on the top of the cover plate, and a negative pressure cover is fixed on the outer wall of the bottom of the cover plate. Multiple air holes are formed in the top of the cover plate, an air pipe is fixed to the outer wall of the bottom of the negative-pressure cover, and a connector is installed at one end of the air pipe. According to the utility model, the printing piece main body is firmly adsorbed on the cover plate in the printing process through the negative pressure adsorption device, so as to ensure that the printing piece main body cannot move or deviate in the printing process, the negative pressure adsorption mode is suitable for printing pieces made of various materials, the printing pattern can be effectively prevented from skewing or dislocation, the printing precision and effect are ensured, and the printing quality is improved. According to the printing part, through the combination of a lead screw, a sliding way, a guide rod and a driving motor, flexible movement of the digital printing head is achieved.

Description

Technical Field

[0001] This utility model relates to the field of digital printer technology, and in particular to an anti-offset device for a digital printer used in digital printing. Background Technology

[0002] In the field of digital printing, digital printers are favored for their high efficiency, accuracy and wide range of applications. However, in practical applications, the offset of printed parts during the printing process has always been one of the important factors affecting the printing effect. Especially when printing on rigid materials (such as acrylic, metal plates, etc.) or soft paper, the printed parts are prone to move or offset during the printing process, resulting in misalignment, skewing and other problems in the printed pattern, which seriously affects the printing quality and yield.

[0003] Traditional anti-deviation devices typically employ simple mechanical clamping or gravity pressing methods. However, these methods have the following drawbacks: traditional clamping devices cannot simultaneously meet the printing needs of rigid boards and soft paper. For rigid boards, insufficient clamping force may cause slight movement of the printed parts during the printing process; while for soft paper, excessive clamping force may cause paper deformation or damage.

[0004] Therefore, developing a digital printer anti-offset device that can adapt to various types of printed materials and is easy to operate has important practical significance and application value, so as to meet the needs of the modern digital printing industry for high-quality and high-efficiency printing. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-offset device for digital printers used in digital printing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An anti-offset device for a digital printer for digital printing includes a base, a cover plate fixed to the top outer wall of the base for placing the main body of the printable, a printing part for digital printing the main body of the printable is installed on the top of the cover plate, a negative pressure cover is fixed to the bottom outer wall of the cover plate, and multiple sets of air holes are opened on the top of the cover plate. An air pipe is fixed to the bottom outer wall of the negative pressure cover, and a connector is installed at one end of the air pipe.

[0008] As a further embodiment of this utility model: the printing part includes a support one and a support two, and the top outer walls of the support one and the support two are respectively fixed with slide three and slide one, and a guide rod is fixed between the inner walls on both sides of slide one by a pin, and slide two is movably connected to the inner wall of slide one.

[0009] As a further embodiment of this utility model: a lead screw two is movably connected between the inner walls of both sides of the slide rail three, and the lead screw two and the slide rail two are connected by a lead screw nut. A drive motor one is fixed on one side of the outer wall of the slide rail three, and the output end of the drive motor one is connected to one end of the lead screw two through a coupling.

[0010] As a further embodiment of this utility model: a connecting plate is movably connected to the inner wall of the slide rail II, and a lead screw I is movably connected between the inner walls of both sides of the slide rail II, and the lead screw I and the connecting plate are connected by a lead nut. A drive motor II is fixed to one side of the outer wall of the slide rail II, and the output end of the drive motor II is connected to one end of the lead screw I through a coupling.

[0011] As a further embodiment of this utility model: the printing unit further includes a digital print head and an electric telescopic rod, the electric telescopic rod being fixed to the top outer wall of the connecting plate, and the digital print head being fixed to the output end of the electric telescopic rod.

[0012] As a further improvement of this utility model: two sets of anti-deviation components are installed on the top outer wall of the base. The anti-deviation components include a vertical plate and an electric telescopic rod three. The vertical plate is fixed to the top outer wall of the base, and the electric telescopic rod three is fixed to one side of the outer wall of the vertical plate.

[0013] As a further embodiment of this utility model: the output end of the electric telescopic rod is fixed with a connecting plate by a pin, and the top outer wall of the connecting plate is fixed with an electric telescopic rod two, and the output end of the electric telescopic rod two is fixed with a horizontal plate by a pin.

[0014] As a further improvement of this utility model: an anti-deviation plate is welded to one side of the outer wall of the transverse plate, and a rubber pad is adhered to the bottom of the anti-deviation plate.

[0015] Compared with the prior art, this utility model provides an anti-offset device for a digital printer used in digital printing, which has the following beneficial effects:

[0016] 1. Through the negative pressure adsorption device, the main body of the printed part is adsorbed onto the cover plate during the printing process, ensuring that it will not move or shift during printing. The negative pressure adsorption method is suitable for the main body of the printed part of different materials, and can effectively prevent the printed pattern from being skewed or misaligned, ensuring printing accuracy and effect.

[0017] 2. The printing unit achieves flexible movement of the digital print head through a combination of lead screw, slide rail, guide rod and drive motor. Drive motor one and drive motor two control the rotation of lead screw two and lead screw one respectively, so that the print head can move precisely under the guidance of slide rail one and slide rail two. In addition, electric telescopic rod one can adjust the height of the print head to ensure that the distance between the print head and the printed part is always in the optimal state.

[0018] 3. The anti-deviation component, through the coordinated operation of electric telescopic rod three and electric telescopic rod two, can perform different limiting operations according to the type of printed part. For plate printed parts, it can limit the movement by contact, and for paper printed parts, it can limit the movement by pressure.

[0019] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an anti-offset device for a digital printer proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the side-direction structure of an anti-offset device for a digital printer proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the overall structure of the printing section of an anti-offset device for a digital printer proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the overall structure of the negative pressure fixing part of the anti-offset device for a digital printer proposed in this utility model.

[0024] Figure 5 This is a schematic diagram of the anti-offset component structure of an anti-offset device for a digital printer for digital printing proposed in this utility model.

[0025] In the diagram: 1. Base; 2. Cover plate; 3. Main body of the printed part; 4. Bracket 1; 5. Slide rail 1; 6. Connecting plate; 7. Air hole; 8. Digital print head; 9. Anti-deviation plate; 10. Electric telescopic rod 1; 11. Guide rod; 12. Slide rail 2; 13. Lead screw 1; 14. Drive motor 1; 15. Bracket 2; 16. Drive motor 2; 17. Lead screw 2; 18. Slide rail 3; 19. Negative pressure cover; 20. Air pipe; 21. Connector; 22. Electric telescopic rod 2; 23. Connecting plate; 24. Vertical plate; 25. Electric telescopic rod 3; 26. Rubber pad; 27. Horizontal plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do 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, they should not be construed as limitations on this utility model.

[0028] A device for preventing offset printing in a digital printer, designed to ensure the quality of digital printing, such as... Figures 1 to 5 As shown, the device includes a base 1. The top outer wall of the base 1 is fixed with a cover plate 2 for placing the main body 3 of the printed part by bolts. The top of the cover plate 2 is equipped with a printing part for digital printing of the main body 3 of the printed part. The bottom outer wall of the cover plate 2 is fixed with a negative pressure cover 19 by bolts. The top of the cover plate 2 has multiple sets of air holes 7. The bottom outer wall of the negative pressure cover 19 is fixed with an air pipe 20 by bolts. One end of the air pipe 20 is equipped with a connector.

[0029] When digital printing is required on the main body 3, first place the main body 3 on the cover plate 2 and adjust its position. After adjustment, connect the connector 21 and negative pressure equipment (not shown) such as the negative pressure pump. The negative pressure equipment generates negative pressure, which is then adsorbed onto the bottom of the main body 3 through the air hole 7, thereby ensuring the stability of the main body 3 and preventing the printed pattern on the main body 3 from becoming skewed after digital printing.

[0030] The printing unit includes a first bracket 4 and a second bracket 15. The top outer walls of the first bracket 4 and the second bracket 15 are respectively fixed with slide rails 3 18 and 1 5 via bolts. A guide rod 11 is fixed between the inner walls of both sides of slide rail 1 5 via pins. Slide rail 2 12 is slidably connected to the inner wall of slide rail 1 5. A lead screw 2 17 is rotatably connected between the inner walls of both sides of slide rail 3 18, and lead screw 2 17 and slide rail 2 12 are connected via a nut. A drive motor 14 is fixed to one outer wall of slide rail 3 18 via bolts, and the output end of drive motor 14 is connected to one end of lead screw 2 17 via a coupling. The inner wall of the slide rail 12 is slidably connected to a connecting plate 6, and a lead screw 13 is rotatably connected between the inner walls of both sides of the slide rail 12. The lead screw 13 and the connecting plate 6 are connected by a lead screw nut. A drive motor 2 16 is fixed to one side of the outer wall of the slide rail 12 by bolts, and the output end of the drive motor 2 16 is connected to one end of the lead screw 13 by a coupling. The printing part also includes a digital print head 8 and an electric telescopic rod 10. The electric telescopic rod 10 is fixed to the top outer wall of the connecting plate 6 by bolts, and the digital print head 8 is fixed to the output end of the electric telescopic rod 10 by bolts.

[0031] When the drive motor 14 drives the lead screw 17 to rotate, the slide rail 12 moves under the guidance of the slide rail 5 and the guide rod 11, thereby adjusting the position of the digital print head 8 along the direction of the slide rail 5. When the drive motor 16 drives the lead screw 13 to rotate, the connecting plate 6 moves under the guidance of the slide rail 12, thereby adjusting the position of the digital print head 8 along the direction of the slide rail 12. This allows the digital print head 8 to flexibly digitally print the main body 3 of the printed material. In this embodiment, the digital printing method of the digital print head 8 is preferably UV printing. The electric telescopic rod 10 adjusts the height of the digital print head 8. UV printing processes image data through computer software, controls the print head to spray UV ink onto the surface of the printing material, and then uses an ultraviolet lamp to quickly cure the ink to form an image.

[0032] Two sets of anti-deviation components are installed on the top outer wall of the base 1. The anti-deviation components include a vertical plate 24 and an electric telescopic rod 25. The vertical plate 24 is fixed to the top outer wall of the base 1 by bolts, and the electric telescopic rod 25 is fixed to one side outer wall of the vertical plate 24 by bolts. The output end of the electric telescopic rod 25 is fixed to a connecting plate 23 by a pin. The top outer wall of the connecting plate 23 is fixed to an electric telescopic rod 22 by bolts. The output end of the electric telescopic rod 22 is fixed to a horizontal plate 27 by a pin. An anti-deviation plate 9 is welded to one side outer wall of the horizontal plate 27, and a rubber pad 26 is glued to the bottom of the anti-deviation plate 9.

[0033] When the main body 3 of the printed part is a plate-type printed part, it has a certain rigidity. The electric telescopic rods 25 of the two sets of anti-deviation components synchronously drive the anti-deviation plate 9 to move laterally, and adjust the interval between the two anti-deviation plates 9. When the interval between the two anti-deviation plates 9 is matched with the width of the plate-type printed part, the electric telescopic rods 22 drive the anti-deviation plate 9 and the rubber pad 26 to move down so that the rubber pad 26 and the top outer wall of the cover plate 2 are in contact, and the plate-type printed part is placed between the two anti-deviation plates 9. Thus, the plate-type printed part can be limited by the contact method to prevent it from deviating during printing.

[0034] When the main body of the printed part 3 is a paper printed part, after limiting the paper printed part according to the limiting method for plate printed parts described above, the anti-deviation plate 9 and rubber pad 26 are driven to move upward by the electric telescopic rod 22, and then the anti-deviation plate 9 and rubber pad 26 are driven to move laterally by the electric telescopic rod 3 25. When the rubber pad 26 moves above the paper printed part, the rubber pad 26 is driven to move downward by the electric telescopic rod 22 so that the rubber pad 26 presses on the paper printed part. The rubber pad 26 limits the paper printed part by pressing, preventing the paper printed part from deviating.

[0035] Working principle: When printing on a plate-type printable part, the electric telescopic rods 25 of the two sets of anti-deviation components move laterally in sync, driving the anti-deviation plate 9 to adjust to a position matching the width of the plate-type printable part. The electric telescopic rod 22 drives the anti-deviation plate 9 to move down to the surface of the cover plate 2, and the rubber pads 26 make close contact with both sides of the plate-type printable part, limiting the plate-type printable part by contact.

[0036] When printing on paper, first complete the width adaptation and pressing according to the anti-deviation treatment method of the plate print. The electric telescopic rod 22 lifts the anti-deviation plate 9. The electric telescopic rod 325 drives the anti-deviation plate 9 to move laterally above the paper print. The electric telescopic rod 22 drives the anti-deviation plate 9 to move down again so that the rubber pad 26 presses on the paper print.

[0037] After connecting connector 21 to the negative pressure device, the negative pressure is transmitted to the negative pressure cover 19 through the air pipe 20. The negative pressure is evenly distributed through the air holes 7, so that the bottom of the printed body 3 is completely in contact with the cover plate 2. The drive motor 14 drives the lead screw 17 to rotate, and drives the slide rail 12 to move along the slide rail 5. The drive motor 16 drives the lead screw 13 to rotate, and drives the connecting plate 6 to move along the slide rail 12 to adjust the position of the digital print head 8. The electric telescopic rod 10 adjusts the height of the digital print head 8 to adapt to different thicknesses of the printed body 3. The digital print head 8 receives the image data processed by the computer. The UV ink is accurately dropped through the jetting system, and the ultraviolet lamp instantly cures the ink to form a high-adhesion pattern.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An anti-offset device for a digital printer, comprising a base (1), characterized in that, The base (1) has a cover plate (2) fixed on the top outer wall for placing the main body (3) of the printed part. The top of the cover plate (2) is equipped with a printing part for digital printing of the main body (3). The bottom outer wall of the cover plate (2) is fixed with a negative pressure cover (19). The top of the cover plate (2) has multiple sets of air holes (7). The bottom outer wall of the negative pressure cover (19) is fixed with an air pipe (20). One end of the air pipe (20) is equipped with a connector.

2. The anti-offset device for a digital printer according to claim 1, characterized in that, The printing unit includes a first bracket (4) and a second bracket (15), and the top outer walls of the first bracket (4) and the second bracket (15) are respectively fixed with a third slide (18) and a first slide (5), and a guide rod (11) is fixed between the inner walls on both sides of the first slide (5) by a pin, and the second slide (12) is movably connected to the inner wall of the first slide (5).

3. The anti-offset device for a digital printer according to claim 2, characterized in that, A lead screw 2 (17) is movably connected between the inner walls of both sides of the slide rail 3 (18), and the lead screw 2 (17) and the slide rail 2 (12) are connected by a lead screw nut. A drive motor 1 (14) is fixed on one side of the outer wall of the slide rail 3 (18), and the output end of the drive motor 1 (14) is connected to one end of the lead screw 2 (17) through a coupling.

4. The anti-offset device for a digital printer according to claim 3, characterized in that, The inner wall of the slide rail 2 (12) is movably connected to a connecting plate (6), and a lead screw 1 (13) is movably connected between the inner walls of both sides of the slide rail 2 (12). The lead screw 1 (13) and the connecting plate (6) are connected by a lead screw nut. A drive motor 2 (16) is fixed on one side of the outer wall of the slide rail 2 (12), and the output end of the drive motor 2 (16) is connected to one end of the lead screw 1 (13) through a coupling.

5. The anti-offset device for a digital printer according to claim 4, characterized in that, The printing unit also includes a digital print head (8) and an electric telescopic rod (10). The electric telescopic rod (10) is fixed to the top outer wall of the connecting plate (6), and the digital print head (8) is fixed to the output end of the electric telescopic rod (10).

6. The anti-offset device for a digital printer according to claim 5, characterized in that, Two sets of anti-deviation components are installed on the top outer wall of the base (1). The anti-deviation components include a vertical plate (24) and an electric telescopic rod (25). The vertical plate (24) is fixed to the top outer wall of the base (1), and the electric telescopic rod (25) is fixed to one side of the outer wall of the vertical plate (24).

7. The anti-offset device for a digital printer according to claim 6, characterized in that, The output end of the electric telescopic rod three (25) is fixed with a connecting plate (23) by a pin, and the top outer wall of the connecting plate (23) is fixed with an electric telescopic rod two (22), and the output end of the electric telescopic rod two (22) is fixed with a horizontal plate (27) by a pin.

8. The anti-offset device for a digital printer according to claim 7, characterized in that, An anti-deviation plate (9) is welded to one side of the outer wall of the transverse plate (27), and a rubber pad (26) is glued to the bottom of the anti-deviation plate (9).

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