Support device for large color digital printing press

By designing a support device for the lifting and leveling components, the problem of cardboard skewing and collision after printing on a large-scale color digital printing press was solved, achieving stable stacking and quality protection of the cardboard.

CN224311465UActive Publication Date: 2026-06-02NINGBO OVERLAY DIGITAL PRINTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO OVERLAY DIGITAL PRINTING CO LTD
Filing Date
2025-08-20
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Large-format printed materials produced by large-format color digital printing presses are prone to skewing, wrinkling, or damage from impacts after exiting the press, due to a lack of effective support.

Method used

A support device for a large-scale color digital printing machine was designed, comprising a lifting component and a leveling component. The lifting of the support plate is achieved by threaded blocks and threaded rods. A servo motor drives gears and racks to align the plate for leveling. Rollers of different sizes and belts are used to adjust the sliding speed of the cardboard. Spring components and baffles are used to prevent skewing and side slippage.

Benefits of technology

It achieves stable stacking of printing paperboard, prevents skewing and collision damage, effectively slows down the sliding speed of the paperboard, and ensures the quality of printed products.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a support device for a large-scale color digital printing press, relating to the field of printing press support technology. It includes a printing press body, an extension plate fixedly installed on one side of the printing press body, and a frame symmetrically fixedly installed on the side of the printing press body near the extension plate. The frame contains a lifting assembly, and a support plate is provided on one side of the frame. The support plate is raised and lowered on one side of the frame via the lifting assembly. A leveling assembly is provided on the surface of the support plate. The lifting mechanism ensures that the printed cardboard is stably stacked during the material receiving process. The leveling assembly aligns the stacked cardboard on the support plate surface, preventing skewing. Two drive wheels of different sizes rotate the rollers, slowing down the sliding speed of the cardboard and preventing collisions and damage due to excessive sliding speed.
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Description

Technical Field

[0001] This utility model relates to the field of printing press support technology, specifically a support device for a large-scale color digital printing press. Background Technology

[0002] Digital printing presses, also known as universal flatbed printers or flatbed printers, are digital printing devices that do not require plate making and can print directly on various materials one sheet at a time. They are a replacement product for traditional printing presses. They are mainly divided into two categories: industrial and office (digital printing all-in-one machines). They can be used for printing on substrates such as leather, metal, glass, and acrylic, covering fields such as personalized gifts, home decoration, and advertising signage.

[0003] In the workflow of a large-format color digital printing press, after the printed large-format substrate (such as thick cardboard used for packaging, advertising display boards, etc.) is discharged from the printing press outlet, due to its large size and certain rigidity or weight, if it is directly stacked or lacks support, it is prone to problems such as tilting, wrinkling, collision damage. In order to solve the above problems, a support device for a large-format color digital printing press is proposed. Utility Model Content

[0004] In order to solve the above problems, the purpose of this utility model is to provide a support device for a large-scale color digital printing machine.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a support device for a large-scale color digital printing machine, comprising a printing machine body, an extension plate fixedly installed on one side of the printing machine body, a frame symmetrically fixedly installed on the side of the printing machine body near the extension plate, a lifting assembly provided inside the frame, a support plate provided on one side of the frame, the support plate being raised and lowered on one side of the frame by the lifting assembly, and a leveling assembly provided on the surface of the support plate; the lifting assembly includes a threaded block slidably connected inside the frame, a threaded rod installed on the radial inner wall of the threaded block through internal and external thread engagement, a load-bearing rod fixedly installed on one side of the threaded block, and one side of the load-bearing rod connected to the support plate; the leveling assembly includes a groove formed at the center position on both sides of the surface of the support plate, a connecting rod slidably connected inside the groove, and an alignment plate fixedly installed at the top of the connecting rod.

[0006] Preferably, the leveling assembly further includes a gear rotatably connected to the center position inside the support plate, and toothed rods adapted to the gear are fixedly installed on opposite sides inside the support plate, with one side of the toothed rod connected to a connecting rod.

[0007] Preferably, the surface of the expansion plate has two through slots, and a roller is rotatably connected inside the through slot. One side of one roller passes through the expansion plate and is fixedly installed with a drive wheel, and the other side of the roller passes through the expansion plate and is fixedly installed with a driven wheel. A matching belt is provided between the drive wheel and the driven wheel.

[0008] Preferably, the driving wheel and the driven wheel are of different sizes, and the diameter of the driving wheel is half that of the driven wheel.

[0009] Preferably, a mounting bracket is fixedly installed at the top of the two load-bearing rods, and a plurality of spring assemblies are fixedly installed at the bottom of the interior of the mounting bracket. A baffle is elastically connected inside the mounting bracket through the spring assemblies.

[0010] Preferably, a connecting frame is rotatably connected to one side of the support plate, and a guardrail is fixedly installed at the top of the connecting frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] The adjustable lifting mechanism ensures that the printed cardboard is stacked stably during the material receiving process. The leveling component aligns the stacked cardboard on the support plate surface, preventing skewing. Two drive wheels of different sizes rotate the rollers, slowing down the cardboard's sliding speed and preventing collisions and damage caused by excessive sliding. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a bottom view of the present invention;

[0016] Figure 3 This is a partial structural cross-sectional view of the mounting bracket of this utility model;

[0017] Figure 4 for Figure 1 Enlarged view of the structure at point A in the middle;

[0018] Figure 5 This is a partial structural cross-sectional view of the support plate in this utility model.

[0019] In the diagram: 1. Printing machine body; 2. Extension plate; 3. Through groove; 4. Roller; 5. Drive wheel; 6. Driven wheel; 7. Belt; 9. Frame; 10. Threaded rod; 11. Threaded block; 12. Load-bearing rod; 13. Support plate; 14. Connecting frame; 15. Guardrail; 16. Mounting frame; 18. Spring assembly; 19. Baffle; 20. Alignment plate; 21. Gear; 22. Tooth rack; 23. Connecting rod; 24. Slide groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figures 1-5As shown, this utility model provides a support device for a large color digital printing machine, including a printing machine body 1. The printing machine body 1 performs printing work on the paperboard to be printed. An extension plate 2 is fixedly installed on one side of the printing machine body 1. A frame 9 is symmetrically fixedly installed on the side of the printing machine body 1 near the extension plate 2. A lifting component is provided inside the frame 9. A support plate 13 is provided on one side of the frame 9. The support plate 13 is lifted and lowered on one side of the frame 9 by the lifting component. A leveling component is provided on the surface of the support plate 13. The lifting assembly includes a threaded block 11 slidably connected inside the frame 9. A threaded rod 10 is installed on the radial inner wall of the threaded block 11 through internal and external thread engagement. The threaded rod 10 rotates under the drive of the first servo motor. The rotating threaded rod 10 interacts with the threaded groove on the surface of the threaded block 11, thereby causing the threaded block 11 to move up or down along the surface of the frame 9 via the load-bearing rod 12 and the support plate 13. The load-bearing rod 12 is fixedly installed on one side of the threaded block 11, and one side of the load-bearing rod 12 is connected to the support plate 13. The leveling assembly includes a sliding groove 24 opened at the center position on both sides of the surface of the support plate 13. A connecting rod 23 is slidably connected inside the sliding groove 24. The connecting rod 23 is inside the printing machine body 1. Driven by the power, the alignment plate 20 moves toward the printed paperboard on the surface of the support plate 13 for alignment. The top of the connecting rod 23 is fixedly installed with the alignment plate 20. The leveling assembly also includes a gear 21 rotatably connected to the center position inside the support plate 13. On opposite sides inside the support plate 13, there are toothed rods 22 that are adapted to the gear 21. One side of the toothed rod 22 is connected to the connecting rod 23. Driven by the second servo motor, the gear 21 rotates clockwise or counterclockwise. When the gear 21 rotates clockwise, the toothed rod 22 interacts with the clockwise rotating gear 21, causing the toothed rod 22 to move toward the printed paperboard on the surface of the support plate 13 via the connecting rod 23 and the alignment plate 20.

[0022] Conversely, when gear 21 rotates counterclockwise, rack 22, via connecting rod 23, carries the alignment plate 20 away from the surface of the support plate 13, and the printed paperboard.

[0023] Two through slots 3 are formed on the surface of the expansion plate 2. A roller 4 is rotatably connected inside the through slot 3. One side of one roller 4 passes through the expansion plate 2 and a drive wheel 5 is fixedly installed thereon. The other side of the roller 4 passes through the expansion plate 2 and a driven wheel 6 is fixedly installed thereon. A matching belt 7 is provided between the drive wheel 5 and the driven wheel 6. The drive wheel 5 and the driven wheel 6 are different sizes, and the diameter of the drive wheel 5 is half that of the driven wheel 6.

[0024] By adopting the above technical solution, the driving wheel 5 rotates under the drive of the drive machine, and the driven wheel 6 rotates synchronously with the driving wheel 5 through the belt 7. Since the diameter of the driven wheel 6 is twice that of the driving wheel 5, the roller 4 on the side closer to the printing machine body 1 rotates faster, and the roller 4 on the side farther away from the printing machine body 1 rotates slower, thereby reducing the sliding speed of the printing paperboard.

[0025] Mounting brackets 16 are fixedly installed at the top of the two load-bearing rods 12. Several spring assemblies 18 are fixedly installed at the bottom of the interior of the mounting brackets 16. A baffle 19 is elastically connected inside the mounting brackets 16 through the spring assemblies 18. A connecting bracket 14 is rotatably connected to one side of the support plate 13. A guardrail 15 is fixedly installed at the top of the connecting bracket 14.

[0026] By adopting the above technical solution, when the support plate 13 approaches the expansion plate 2, the baffle 19 retracts inside the mounting frame 16 and squeezes the spring assembly 18. When the support plate 13 gradually moves away from the expansion plate 2, the baffle 19 gradually extends inside the mounting frame 16 under the action of the spring assembly 18, preventing the stacked printed paperboard from tilting and slipping.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A support device for a large-scale color digital printing press, comprising a printing press body (1), characterized in that: An extension plate (2) is fixedly installed on one side of the printing machine body (1). A frame (9) is symmetrically fixedly installed on the side of the printing machine body (1) near the extension plate (2). A lifting component is provided inside the frame (9). A support plate (13) is provided on one side of the frame (9). The support plate (13) is raised and lowered on one side of the frame (9) by the lifting component. A leveling component is provided on the surface of the support plate (13). The lifting component includes a threaded block (11) slidably connected inside the frame (9). A threaded rod (10) is installed on the radial inner wall of the threaded block (11) through internal and external thread engagement. A load-bearing rod (12) is fixedly installed on one side of the threaded block (11). One side of the load-bearing rod (12) is connected to the support plate (13). The leveling component includes a groove (24) opened at the center position on both sides of the surface of the support plate (13). A connecting rod (23) is slidably connected inside the groove (24). An alignment plate (20) is fixedly installed at the top of the connecting rod (23).

2. The support device for a large-scale color digital printing machine as described in claim 1, characterized in that, The leveling assembly also includes a gear (21) rotatably connected to the center of the support plate (13). On opposite sides of the support plate (13), there are toothed rods (22) that are adapted to the gear (21). One side of the toothed rod (22) is connected to the connecting rod (23).

3. The support device for a large-scale color digital printing machine as described in claim 2, characterized in that, The surface of the expansion plate (2) has two through slots (3), and a roller (4) is rotatably connected inside the through slot (3). One side of the roller (4) passes through the expansion plate (2) and a drive wheel (5) is fixedly installed thereon. The other side of the roller (4) passes through the expansion plate (2) and a driven wheel (6) is fixedly installed thereon. A matching belt (7) is provided between the drive wheel (5) and the driven wheel (6).

4. The support device for a large-scale color digital printing machine as described in claim 3, characterized in that, The driving wheel (5) and the driven wheel (6) are of different sizes, and the diameter of the driving wheel (5) is half that of the driven wheel (6).

5. The support device for a large-scale color digital printing machine as described in claim 3, characterized in that, A mounting bracket (16) is fixedly installed at the top of the two load-bearing rods (12). Several spring assemblies (18) are fixedly installed at the bottom inside the mounting bracket (16). A baffle (19) is elastically connected inside the mounting bracket (16) through the spring assemblies (18).

6. The support device for a large-scale color digital printing machine as described in claim 5, characterized in that, A connecting frame (14) is rotatably connected to one side of the support plate (13), and a guardrail (15) is fixedly installed on the top of the connecting frame (14).