Paperboard printing press with pre-cleaning arrangement

By introducing a pre-cleaning structure into the cardboard printing press, dust and fiber debris on the cardboard surface are removed using adhesive rollers and a dust extraction device, thus solving quality problems caused by inadequate pre-printing cleaning and improving printing quality and efficiency.

CN224296804UActive Publication Date: 2026-05-29SICHUAN HAOTESEN PACKAGING PRINTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN HAOTESEN PACKAGING PRINTING CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing printing presses used for wine box production do not pre-clean the cardboard before printing, resulting in dust and fiber debris residue, which causes missing dots, color misregistration and insufficient adhesion, affecting printing quality and efficiency.

Method used

A pre-cleaning structure for printing paperboard was designed, comprising a conveying device, a cleaning device, and a dust collection device. The adhesive roller and the dust collection device are used to clean dust and fiber debris from the surface of the paperboard, ensuring that the paperboard meets cleanliness standards before printing.

Benefits of technology

Pre-cleaning reduces interference from impurities during the printing process, ensuring the clarity of the printed pattern and the accuracy of color registration, thereby improving the consistency of production quality and the yield rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to printing equipment technical field, concretely for paperboard printing machine with pre -cleaning structure, including conveying device, the top fixed mounting of conveying device has cleaning device, the side end fixed mounting of conveying device has dust extraction, the inner wall fixed mounting of conveying device has printing device, the conveying device includes frame, the top rotation of frame is installed with sticking cylinder. Improved paperboard printing machine, through third motor, fan blade cooperation screen, can remove the fiber debris on paperboard surface, can clean the dust on the outer surface of paperboard through second motor cooperation sticking cylinder, thereby realize paperboard to carry out pre -cleaning to paperboard before printing production to reduce the problem that the screen dot is blurred, the color precision deviation and the ink adhesion are insufficient etc. due to impurity interference in printing process, guarantee printing pattern level clear, have guaranteed the consistency of production quality.
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Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, specifically a cardboard printing machine with a pre-cleaning structure. Background Technology

[0002] Wine box production mainly includes design, printing, die-cutting and forming. During the printing process, users often use printing machines to achieve efficient production in conjunction with assembly line operations, thereby improving the efficiency of production and printing. At the same time, printing machines can increase production capacity while ensuring the stability of the quality of printed cardboard.

[0003] During the design process of this utility model, the following problems were discovered in the existing technology:

[0004] Most printing presses used for wine box production on the market do not pre-clean the cardboard during the printing process. This may result in dust residue on the cardboard surface not being effectively removed, which can easily lead to problems such as missing dots, color misregistration, and insufficient adhesion during the printing process. This can cause a decrease in the smoothness of the printed surface, and the ink layer may easily fall off due to friction or local wear. Ultimately, this results in the finished wine box failing to meet the appearance quality standards, while also increasing the scrap rate and reducing production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a paperboard printing machine with a pre-cleaning structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cardboard printing machine with a pre-cleaning structure, including a conveying device, a cleaning device fixedly installed on the top of the conveying device, a dust collection device fixedly installed on the side end of the conveying device, a printing device fixedly installed on the inner wall of the conveying device, the conveying device including a frame, an adhesive roller rotatably installed on the top of the frame, the same second transmission belt sleeved on the outer surface of each adhesive roller, a second motor rotatably installed at one end of one of the adhesive rollers, a dust collection hood fixedly installed on the top of the frame, a pipe fixedly installed on the top of the dust collection hood, a collection cylinder fixedly installed at one end of the pipe, an air outlet threaded on the top of the collection cylinder, four support rods fixedly installed on the inner wall of the air outlet, the same third motor fixedly installed at one end of each support rod, an inking roller fixedly installed on the inner wall of the frame, a first gear fixedly installed at one end of the inking roller, a second gear meshing with the outer surface of the first gear, a third gear meshing with the outer surface of the second gear, an inking roller fixedly installed on the inner wall of the second gear, and a printing roller fixedly installed on the inner wall of the third gear.

[0007] More preferably, five displacement rollers are rotatably mounted on the inner wall of the frame, and a first motor is rotatably mounted on one end of one of the displacement rollers.

[0008] More preferably, one end of each displacement roller is fitted with the same first transmission belt, and the outer surface of each displacement roller is fitted with the same conveyor belt.

[0009] More preferably, a fan blade is rotatably mounted on the bottom of the third motor, and a screen is slidably mounted on the inner wall of the collecting cylinder.

[0010] More preferably, a baffle is fixedly installed on the inner wall of the dust collection hood.

[0011] In a further preferred embodiment, a fourth motor is rotatably mounted at one end of the printing roller, and an ink trough is fixedly mounted on the inner wall of the frame.

[0012] More preferably, a scraper is fixedly installed on the inner wall of the frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This cardboard printing machine, through a third motor and fan blades in conjunction with a screen, can remove fiber debris from the surface of the cardboard. At the same time, through a second motor in conjunction with an adhesive roller, it can clean dust from the outer surface of the cardboard. This allows for pre-cleaning of the cardboard before printing production, thereby reducing problems such as blurred dots, color registration errors, and insufficient ink adhesion caused by impurities during the printing process. This ensures clear printing patterns and guarantees consistent production quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the conveying device of this utility model;

[0016] Figure 2 This is a schematic diagram of the cleaning device of this utility model;

[0017] Figure 3 This is a schematic diagram of the dust collection device of this utility model;

[0018] Figure 4 This is a schematic diagram of the printing device of this utility model.

[0019] In the diagram: 1. Conveying device; 11. Frame; 12. Displacement roller; 13. First motor; 14. First transmission belt; 15. Conveyor belt; 2. Cleaning device; 21. Adhesive roller; 22. Second transmission belt; 23. Second motor; 3. Dust collection device; 31. Dust collection hood; 32. Pipe; 33. Collection cylinder; 34. Air outlet; 35. Support rod; 36. Third motor; 37. Fan blade; 38. Screen; 39. Baffle; 4. Printing device; 41. Inking roller; 42. First gear; 43. Second gear; 44. Third gear; 45. Ink roller; 46. Printing roller; 47. Fourth motor; 48. Ink tank; 49. Scraper. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a cardboard printing machine with a pre-cleaning structure, including a conveying device 1, a cleaning device 2 fixedly installed on the top of the conveying device 1, a dust collection device 3 fixedly installed on the side of the conveying device 1, a printing device 4 fixedly installed on the inner wall of the conveying device 1, the conveying device 1 including a frame 11, an adhesive roller 21 rotatably installed on the top of the frame 11, the outer surface of the adhesive roller 21 being fitted with the same second transmission belt 22, a second motor 23 rotatably installed at one end of one of the adhesive rollers 21, a dust collection hood 31 fixedly installed on the top of the frame 11, and a pipe 32 fixedly installed on the top of the dust collection hood 31. A collection cylinder 33 is fixedly installed at one end of the pipe 32. An air outlet 34 is threaded onto the top of the collection cylinder 33. Four support rods 35 are fixedly installed on the inner wall of the air outlet 34. The same third motor 36 is fixedly installed at one end of each support rod 35. An ink roller 41 is fixedly installed on the inner wall of the frame 11. A first gear 42 is fixedly installed at one end of the ink roller 41. A second gear 43 is meshed on the outer surface of the first gear 42. A third gear 44 is meshed on the outer surface of the second gear 43. An ink roller 45 is fixedly installed on the inner wall of the second gear 43. A printing roller 46 is fixedly installed on the inner wall of the third gear 44.

[0022] In this embodiment, as Figure 1 and Figure 2 As shown, five displacement rollers 12 are rotatably mounted on the inner wall of the frame 11, and a first motor 13 is rotatably mounted on one end of one of the displacement rollers 12.

[0023] In this embodiment, as Figure 1 and Figure 2 As shown, one end of each displacement roller 12 is fitted with the same first transmission belt 14, and the outer surface of each displacement roller 12 is fitted with the same conveyor belt 15.

[0024] In this embodiment, as Figure 1 and Figure 3 As shown, a fan blade 37 is rotatably mounted on the bottom of the third motor 36, and a screen 38 is slidably mounted on the inner wall of the collecting cylinder 33.

[0025] In this embodiment, as Figure 1 and Figure 3 As shown, a baffle 39 is fixedly installed on the inner wall of the dust hood 31.

[0026] In this embodiment, as Figure 1 and Figure 4 As shown, a fourth motor 47 is rotatably mounted on one end of the printing roller 46, and an ink trough 48 is fixedly mounted on the inner wall of the frame 11.

[0027] In this embodiment, as Figure 1 and Figure 4 As shown, a scraper 49 is fixedly installed on the inner wall of the frame 11.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the working process of this cardboard printing machine with a pre-cleaning structure is as follows:

[0029] First, the user needs to place the cardboard box on top of the conveyor belt 15. Then, the user needs to pour ink into the ink tank 48. After completion, the user needs to start the first motor 13, which will drive the displacement roller 12. The displacement roller 12 will then drive the first transmission belt 14, which in turn will drive the remaining displacement rollers 12 to rotate, thus driving the conveyor belt 15 to transport the cardboard box above it. When the cardboard box moves directly under the dust collection hood 31, the user needs to start the third motor 36, which is fixed to the inner wall of the air outlet 34 by the support rod 35. This will drive the fan blades 37 to rotate, sucking the waste from the cardboard into the collection cylinder 33, where it is then separated from the air by the screen 38. The baffle 39 will restrict the cardboard to prevent displacement. The conveyor device 1 will then continue to transport the cardboard until it is clean. The cardboard is cleaned by starting the second motor 23 at the bottom of the cleaning device 2, which in turn drives the two adhesive rollers 21 to rotate, thus cleaning the dust on the outer surface of the cardboard. After two rounds of cleaning, the cardboard is conveyed to the bottom of the printing device 4. Then, the user needs to start the fourth motor 47, which will drive the printing roller 46 and the third gear 44 fixedly installed at one end of the printing roller 46 to rotate. At the same time, the third gear 44 will also drive the second gear 43 to rotate, and the second gear 43 will drive the first gear 42 to rotate. This allows the ink to be delivered to the outer surface of the inking roller 45 through the inking roller 41, while the scraper 49 scrapes off the excess ink. Then, the ink on the inking roller 45 will be delivered to the outer surface of the printing roller 46, and the cardboard will be printed with the help of the fourth motor 47. After that, the printed cardboard will be sent out of the device through the conveyor device 1.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A paperboard printing machine with a pre-cleaning structure, comprising a conveying device (1), characterized in that: A cleaning device (2) is fixedly installed on the top of the conveying device (1), a dust collection device (3) is fixedly installed on the side of the conveying device (1), and a printing device (4) is fixedly installed on the inner wall of the conveying device (1). The conveying device (1) includes a frame (11), on the top of which an adhesive roller (21) is rotatably mounted. The outer surface of each adhesive roller (21) is fitted with the same second transmission belt (22). A second motor (23) is rotatably mounted at one end of one of the adhesive rollers (21). A dust collection hood (31) is fixedly mounted on the top of the frame (11). A pipe (32) is fixedly mounted on the top of the dust collection hood (31). A collection cylinder (33) is fixedly mounted at one end of the pipe (32). An air outlet (34) is threaded onto the top of the collection cylinder (33). Four support rods (35) are fixedly installed on the inner wall of the frame (11). A third motor (36) is fixedly installed at one end of each support rod (35). An ink roller (41) is fixedly installed on the inner wall of the frame (11). A first gear (42) is fixedly installed at one end of the ink roller (41). A second gear (43) is meshed on the outer surface of the first gear (42). A third gear (44) is meshed on the outer surface of the second gear (43). An ink roller (45) is fixedly installed on the inner wall of the second gear (43). A printing roller (46) is fixedly installed on the inner wall of the third gear (44).

2. The paperboard printing machine with a pre-cleaning structure according to claim 1, characterized in that: Five displacement rollers (12) are rotatably mounted on the inner wall of the frame (11), and a first motor (13) is rotatably mounted on one end of one of the displacement rollers (12).

3. The paperboard printing machine with a pre-cleaning structure according to claim 2, characterized in that: Each displacement roller (12) is fitted with the same first transmission belt (14) at one end, and the outer surface of each displacement roller (12) is fitted with the same conveyor belt (15).

4. The paperboard printing machine with a pre-cleaning structure according to claim 1, characterized in that: The bottom of the third motor (36) is rotatably equipped with a fan blade (37), and the inner wall of the collecting cylinder (33) is slidably equipped with a screen (38).

5. The paperboard printing machine with a pre-cleaning structure according to claim 1, characterized in that: A baffle (39) is fixedly installed on the inner wall of the dust collection hood (31).

6. The paperboard printing machine with a pre-cleaning structure according to claim 1, characterized in that: A fourth motor (47) is rotatably mounted on one end of the printing roller (46), and an ink trough (48) is fixedly mounted on the inner wall of the frame (11).

7. The paperboard printing machine with a pre-cleaning structure according to claim 1, characterized in that: A scraper (49) is fixedly installed on the inner wall of the frame (11).