Printing ink printing machine for packaging box
By incorporating a scraping component into the ink printing press to remove ink from the doctor blade, the issues of print clarity and consistency are resolved, thereby improving print quality and ink utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-03
AI Technical Summary
The ink adhering to the doctor blade in existing ink printing presses results in poor clarity and consistency of printed patterns, affecting the quality of printed products.
Design a scraping assembly including a scraper blade, a vertical bar, a mounting plate, and an auxiliary spring. The scraper blade is tilted to scrape the ink off the doctor blade, and the dripping part, the stop block, and the sealing film prevent the ink from dripping and drying, thereby improving the ink utilization rate.
Effectively removes ink from the doctor blade, ensuring clarity and consistency of printed materials, reducing ink waste, and improving print quality and ink utilization.
Smart Images

Figure CN224075250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ink printing machine technology, and in particular to an ink printing machine for packaging boxes. Background Technology
[0002] Packaging boxes are used to hold, protect, and store goods. Their surfaces are printed with product images or information. These images and information attract consumers' attention on shelves, convey product features and functions, help consumers make decisions, and also shape and strengthen brand image and enhance brand recognition. These images and information are printed onto the surface of the packaging box using an ink printing press. A screen printing machine mainly consists of a control panel, a screen printing plate, and a squeegee device. During printing, the packaging box is placed on the control panel, the screen printing plate is attached to the box, and the two squeegees in the squeegee device move back and forth to print the image. When the two squeegees move to the right, the right squeegee moves up and the left squeegee moves down, with the left squeegee ...
[0003] During the process of a squeegee scraping ink onto a screen printing plate, excess ink adheres to the squeegee. This adhering ink alters the shape and surface characteristics of the squeegee, preventing it from evenly transferring ink from the screen printing plate to the packaging box. This results in inconsistent ink density and line thickness in the printed pattern, affecting the clarity and consistency of the printed product. Therefore, this application provides an ink printing machine for packaging boxes to meet this requirement. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an ink printing machine for packaging boxes to address the issue of the need to improve the clarity and consistency of ink printing machines.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A printing press for packaging boxes includes a control panel and a bracket mounted on the control panel, with two doctor blades mounted at the bottom of the bracket, and also includes:
[0007] The scraping assembly includes two scraper blades, which are respectively attached to the opposite sides of two scrapers. A mounting bracket is fixed to the bottom of the bracket, and the scraper blades are fixed to the bottom of the mounting bracket.
[0008] Preferably, the bottom of the scraper gradually slopes upward from the middle to both sides.
[0009] Preferably, a dripping part is fixed at the middle position of the bottom of the scraper, the dripping part is attached to the surface of the scraper, and the dripping part is V-shaped.
[0010] Preferably, auxiliary springs are fixed at both ends of the scraper.
[0011] Preferably, both ends of the scraper are fixed with a stop block, which is a rubber block.
[0012] Preferably, the surface of the stop block has several through grooves.
[0013] Preferably, a sealing film is fixed to the side of the stop block near the middle of the scraper.
[0014] Preferably, the mounting bracket includes a vertical rod and a mounting plate, with the vertical rod fixed to the top of the mounting plate and the vertical rod fixed to the bottom of the bracket, and the scraper fixed to the bottom of the mounting plate.
[0015] Compared with the prior art, this utility model has at least the following beneficial effects:
[0016] In the above solution, by setting up a vertical rod, a mounting plate, and a scraper, the scraper is fixed to the surface of the squeegee via the vertical rod and the mounting plate. When the squeegee moves upward after scraping the ink, the scraper can scrape off the ink adhering to the squeegee, reducing ink residue and preventing the shape and surface characteristics of the squeegee from changing due to ink adhesion, thus ensuring the clarity and consistency of the printed matter. The bottom of the scraper gradually slopes upward from the middle to both sides, allowing the scraped ink to flow along the slope towards the middle, avoiding dripping from both ends of the scraper and allowing the ink to flow back to the screen printing plate, reducing waste and improving ink utilization.
[0017] By setting up a drip section, the scraper blade scrapes off the ink on the doctor blade, causing the ink to flow towards the center of the scraper blade. When passing through the V-shaped drip section, because the amount of ink that can accumulate at the bottom of the drip section is small, the ink quickly forms raindrops and drips at a high frequency. This avoids the ink accumulating at the bottom of the scraper blade, shortens the ink's residence time on the scraper blade, prevents the ink from drying on the scraper blade surface, reduces waste, and further improves ink utilization.
[0018] By setting an auxiliary spring, the auxiliary spring provides elastic support to ensure that the scraper blade and the blade surface are in close contact, effectively improving the scraping efficiency of the scraper blade on the blade surface.
[0019] By setting up blocks and grooves, when the scraper blade removes ink from the surface of the scraper, the blocks block the ink flowing towards both ends of the scraper blade, preventing ink from dripping from the ends, reducing waste and improving ink utilization. At the same time, the grooves on the blocks ensure that the elasticity of the scraper blade and auxiliary spring is not affected, maintaining the ink removal effect.
[0020] By setting a sealing film, the film blocks the ink from flowing into the inner wall of the channel, preventing the ink from drying and solidifying in the channel, avoiding the impact of ink residue on the normal deformation of the stop block, and ensuring that the stop block does not interfere with the elastic performance of the scraper and auxiliary spring. Attached Figure Description
[0021] The accompanying drawings, which form part of this specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.
[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0023] Figure 2 This is a three-dimensional structural diagram of the bracket of this utility model;
[0024] Figure 3 This is a three-dimensional structural diagram of the scraping component of this utility model;
[0025] Figure 4 This is a three-dimensional structural diagram of the dripping part of this utility model;
[0026] Figure 5 This is an enlarged view of the stop block of this utility model.
[0027] In the diagram: 1. Control panel; 2. Bracket; 3. Scraper; 4. Scraping assembly; 5. Vertical rod; 6. Mounting plate; 7. Scraper blade; 8. Sealing film; 9. Drip section; 10. Auxiliary spring; 11. Stop block; 12. Through groove.
[0028] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation
[0029] The ink printing machine for packaging boxes provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.
[0030] like Figures 1-5As shown, an embodiment of this utility model provides an ink printing machine for packaging boxes, including a control panel 1 and a bracket 2 mounted on the control panel 1. The control panel 1 is equipped with a vertical lifting mechanism and a left-right reciprocating mechanism. The reciprocating mechanism is mounted on the lifting mechanism, and the lifting mechanism drives the reciprocating mechanism to rise and fall. The bracket 2 and the screen printing plate are mounted on the reciprocating mechanism. A cylinder is mounted on the top of the bracket 2, and the movable end of the bottom of the cylinder is fixed to a doctor blade 3, which drives the doctor blade 3 to rise and fall. Two doctor blades 3 are mounted on the bottom of the bracket 2. The machine also includes:
[0031] The scraping assembly 4 includes two scraper blades 7, which are respectively attached to the opposite sides of the two squeegees 3. A mounting frame is fixed to the bottom of the bracket 2, and the scraper blades 7 are fixed to the bottom of the mounting frame. By setting the scraping assembly 4, the scraper blades 7 are fixed to the surface of the squeegee 3 via the mounting frame, which consists of a vertical rod 5 and a mounting plate 6. When the squeegee 3 moves upward after scraping the ink, the scraper blades 7 can promptly scrape off the ink adhering to the squeegee 3, reduce ink residue, prevent the shape and surface characteristics of the squeegee 3 from changing due to ink adhesion, ensure the clarity and consistency of subsequent printed materials, and improve printing quality.
[0032] like Figure 3 and Figure 4 As shown in this embodiment, the bottom of the squeegee 7 gradually slopes upward from the middle to both sides. The special inclined structure at the bottom of the squeegee 7 allows the scraped ink to flow along the inclined surface to the middle, preventing it from dripping from both ends of the squeegee 7. This allows the ink to flow back to the screen printing plate, reducing ink waste and improving ink utilization. At the same time, it prevents ink from accumulating at both ends of the squeegee 7, reducing the risk of ink drying on the surface of the squeegee 7 and ensuring the continuous and effective use of the squeegee 7.
[0033] like Figure 3 and Figure 4 As shown, in this embodiment, a dripping part 9 is fixed at the middle position of the bottom of the scraper blade 7. The dripping part 9 is attached to the surface of the scraper blade 3 and is V-shaped. When the scraper blade 7 scrapes the ink off the scraper blade 3 and causes the ink to flow towards the middle of the scraper blade 7, it passes through the V-shaped dripping part 9. Since the amount of ink that can be collected at the bottom of the dripping part 9 is small, the ink can quickly form raindrops and drip down. The dripping frequency is high, which avoids the ink from accumulating at the bottom of the scraper blade 7, shortens the ink's residence time on the scraper blade 7, prevents the ink from drying on the surface of the scraper blade 7, further reduces ink waste, and improves ink utilization.
[0034] like Figures 1-5 As shown in this embodiment, auxiliary springs 10 are fixed at both ends of the scraper 7. The auxiliary springs 10 provide elastic support to ensure that the scraper 7 and the surface of the scraper 3 are in close contact. Even during the movement of the scraper 3, the scraper 7 can maintain a good contact state, effectively improving the scraping efficiency of the scraper 7 on the surface of the scraper 3 and ensuring the stability of the scraping effect.
[0035] like Figures 1-5 As shown, in this embodiment, both ends of the scraper blade 7 are fixed with blocks 11, which are rubber blocks. When the scraper blade 7 scrapes off the ink on the surface of the scraper blade 3, the blocks 11 can block the ink flowing to both ends of the scraper blade 7, thereby preventing the ink from dripping from the ends of the scraper blade 7, reducing waste, and improving ink utilization.
[0036] like Figures 1-5 As shown in this embodiment, the surface of the stop block 11 is provided with a plurality of through grooves 12. The through grooves 12 on the stop block 11 can prevent the stop block 11 from affecting the elasticity of the scraper 7 and the auxiliary spring 10, ensuring that the scraper 7 and the auxiliary spring 10 can function normally and maintain the ink scraping effect.
[0037] like Figures 1-5 As shown, in this embodiment, a sealing film 8 is fixed on the side of the block 11 near the middle of the scraper 7. The sealing film 8 can block the ink from flowing into the inner wall of the channel 12, prevent the ink from drying and solidifying in the channel 12, avoid the ink residue affecting the normal deformation of the block 11, ensure that the block 11 does not interfere with the elastic performance of the scraper 7 and the auxiliary spring 10, extend the service life of each component, and ensure the long-term stable operation of the printing press.
[0038] like Figures 1-4 As shown, in this embodiment, the mounting bracket includes a vertical rod 5 and a mounting plate 6. The vertical rod 5 is fixed to the top of the mounting plate 6 and the bottom of the bracket 2. The scraper 7 is fixed to the bottom of the mounting plate 6. The vertical rod 5 is fixed to the bottom of the bracket 2 by screws, and the scraper 7 is fixed to the mounting plate 6 by screws. This makes the installation and disassembly process more convenient.
[0039] Working principle: When the packaging box is printed by the ink printing machine, the packaging box is first placed on the control table 1, the screen printing plate is attached to the packaging box, the ink is poured onto the screen printing plate, and then the two squeegees 3 move from one side to the other. During the movement, if it moves to the left, the right squeegee 3 is attached to the surface of the screen printing plate, and the left squeegee 3 is on top. When the two squeegees 3 move to the leftmost position, the two squeegees 3 will move to the right again. At this time, the left squeegee 3 moves downward and the right squeegee 3 moves upward. By scraping the ink with the squeegees 3, the pattern on the screen printing plate is transferred to the packaging box.
[0040] As the squeegee 3 moves upward, the scraper blade 7 remains in contact with the surface of the squeegee 3. The scraper blade 7 scrapes off the ink adhering to the squeegee 3, preventing ink residue from altering its characteristics and ensuring printing quality. Secondly, because the scraper blade 7 is sloping with a lower center and higher sides, the scraped ink flows along the slope towards the center, preventing dripping from both ends and allowing the ink to flow back to the screen printing plate, improving utilization. The V-shaped drip section 9 at the bottom center, due to the low ink concentration at the bottom, allows the ink to quickly form raindrops and drip down, preventing ink from... The bottom of the scraper blade 7 is filled and dried, and the auxiliary springs 10 at both ends of the scraper blade 7 provide elastic support to ensure that the scraper blade 7 and the scraper 3 fit tightly together, thereby improving the ink scraping effect. The blocks 11 at both ends can block the ink flowing to the ends of the scraper blade 7 to prevent dripping. The through grooves 12 on the blocks 11 do not affect the elasticity of the scraper blade 7 and the auxiliary springs 10, and maintain the scraping effect. The sealing film 8 on the side of the blocks 11 prevents ink from flowing into the inner wall of the through grooves 12, avoids ink drying and affecting the deformation of the blocks 11, and ensures that the elasticity of the scraper blade 7 and the auxiliary springs 10 is not interfered with.
[0041] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions.
[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A printing machine for ink printing of cartons, comprising a console (1) and a support (2) mounted on the console (1), the bottom of the support (2) being provided with two doctor blades (3), characterized in that, Also include: The scraping assembly (4) includes two scrapers (7) respectively adhering to the opposite sides of the two scrapers (7), the bottom of the bracket (2) is fixed with a mounting bracket, and the scraper (7) is fixed at the bottom of the mounting bracket.
2. The ink printer for a packaging box according to claim 1, characterized by The bottom of the scraper (7) is gradually inclined upward from the middle to both sides.
3. The ink printer for a packaging box according to claim 1, characterized by The middle position of the bottom of the scraper (7) is fixed with a drop part (9), the drop part (9) is adhered to the surface of the scraper (3), and the drop part (9) is V-shaped.
4. The ink printer for a packaging box according to claim 1, characterized by Both ends of the scraper (7) are fixed with auxiliary elastic sheets (10).
5. The ink printer for a packaging box according to claim 1, characterized by Both ends of the scraper (7) are fixed with a stop block (11), and the stop block (11) is a rubber block.
6. The ink printer for a packaging box according to claim 5, characterized by The surface of the stop block (11) is provided with a plurality of through grooves (12).
7. The ink printer for a packaging box according to claim 5, characterized by The side surface of the stop block (11) close to the middle position of the scraper (7) is fixed with a film sealing (8).
8. The ink printer for a packaging box according to claim 1, characterized by The mounting bracket includes a vertical rod (5) and a mounting plate (6), the vertical rod (5) is fixed at the top of the mounting plate (6), the vertical rod (5) is fixed at the bottom of the bracket (2), and the scraper (7) is fixed at the bottom of the mounting plate (6).