Carton board printing device

Abstract

The utility model provides a carton board printing device. The carton board printing device comprises a dust removal mechanism, a printing mechanism and a drying mechanism which are sequentially arranged in the conveying direction of a conveying mechanism. The dust removal mechanism comprises a lifting negative pressure adsorption cover, a plurality of rotating first pressing wheels are arranged on the two sides of the negative pressure adsorption cover, and the first pressing wheels abut against the two sides of the paperboard; a lifting fixing plate is arranged at the bottom of a fixing seat in the printing mechanism, a rotating printing roller is arranged in the middle of the fixing plate and abuts against the paperboard for printing, and a plurality of rotating second pressing wheels are arranged on the two sides of the printing roller and abut against the two sides of the paperboard. Through the application of the technical scheme, common problems in the traditional carton printing process are solved, the printing quality and the production efficiency are remarkably improved, and substantial improvement is brought to the carton manufacturing industry.

Description

Technical Field

[0001] The utility model relates to the field of carton printing, and particularly relates to a carton board printing device. Background Art

[0002] In the traditional carton printing process, there are several significant problems that affect the printing quality and production efficiency: 1. Before printing, the printing surface of the carton often adheres to impurities such as paper scraps and dust. These residues not only affect the clarity and aesthetics of the printed pattern, but may also cause poor ink adhesion, affecting the printing quality. 2. After printing, the cartons are usually dried by natural air drying. This method has a slow drying speed, increasing the production cycle and limiting the efficiency of the production line. Especially in a high-humidity environment, the effect of natural air drying is worse, further prolonging the drying time. 3. When using a printing roller to print the middle part of the corrugated carton, a large pressure may cause the edges of the carton to warp and the middle part to sink inward, thereby reducing the flatness of the printing surface. This deformation not only affects the uniformity of printing, but also causes the printed pattern to be distorted or discontinuous, seriously affecting the appearance and quality of the finished product. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a carton board printing device to solve the problems in the above background art.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: including a dust removal mechanism, a printing mechanism and a drying mechanism arranged in sequence along the conveying direction of the conveying mechanism;

[0005] The dust removal mechanism includes a lifting negative pressure adsorption cover. There are a plurality of rotating first pressing wheels on both sides of the negative pressure adsorption cover, and the first pressing wheels are abutted against both sides of the cardboard;

[0006] At the bottom of the fixed seat in the printing mechanism, there is a lifting fixing plate. In the middle of the fixing plate, there is a rotating printing roller, and the printing roller is abutted against the cardboard for printing. There are a plurality of rotating second pressing wheels on both sides of the printing roller, and the second pressing wheels are abutted against both sides of the cardboard.

[0007] Preferably, there is a fixed frame above the conveying mechanism, and the dust removal mechanism, the printing mechanism and the drying mechanism are installed on the fixed frame.

[0008] Preferably, the bottom of the negative pressure adsorption cover is a conical cover. There are first fixed grooves fixed on both sides of the conical cover, and a plurality of first pressing wheels are arranged to rotate in the first fixed grooves.

[0009] Preferably, there is a guiding inclined surface on one side of the first fixed groove.

[0010] Preferably, a flange plate is fixed on the top of the negative pressure adsorption cover, and the periphery of the flange plate is connected to the fixed frame through a first pushing mechanism.

[0011] Preferably, the top of the negative pressure adsorption hood is connected to the air extraction fan through a telescopic pipe.

[0012] Preferably, first guiding columns and a second pushing mechanism are arranged between both sides of the fixing plate and the fixing seats, and the first guiding columns are arranged on both sides of the second pushing mechanism;

[0013] One end of each first guiding column is fixed on the fixing seat, and the other end abuts against the fixing plate through a sliding sleeve and slides thereon.

[0014] Preferably, ear plates are fixedly arranged on both sides of the fixing plate, and both ends of the printing roller abut against the ear plates through bearings and rotate thereon;

[0015] Sliding second fixing grooves are arranged on both sides of the bottom of the fixing plate, both ends of the second fixing grooves are connected to the fixing plate through second guiding columns, and a plurality of second pressing wheels are arranged in the second fixing grooves and rotate therein.

[0016] Preferably, springs are arranged on the outer sides of the second guiding columns, one end of each spring abuts against the fixing plate, and the other end abuts against the second fixing groove.

[0017] The utility model provides a carton board printing device, and the beneficial effects are as follows:

[0018] 1. By using the negative pressure adsorption hood and the first pressing wheel with a lifting function, dust and paper scraps on the printing surface of the carton can be effectively removed, ensuring that the surface of the cardboard before printing is clean and free of impurities, thereby improving the clarity of the printed pattern and the adhesion of the ink.

[0019] 2. By introducing a drying mechanism, the printed cartons can be quickly dried. Compared with natural air drying, the drying time is greatly shortened, and the production efficiency is improved. Especially in a high-humidity environment, this advantage is more obvious.

[0020] 3. The printing mechanism designed with the second pressing wheel and the spring can provide uniform pressure on the edges and the middle of the carton during the printing process, avoiding the problems of edge warping and middle depression, maintaining the flatness of the printing surface, and ensuring the uniformity of printing and the consistency of the finished products.

[0021] 4. Through components such as the telescopic pipe, the first guiding column, the second pushing mechanism, and the spring, the equipment can adapt to cartons of different thicknesses and sizes, improving the flexibility of the production line and the adaptability to various product types. Description of the Drawings

[0022] The following further describes the utility model in conjunction with the drawings and embodiments:

[0023] Figure 1 is the front view of the overall structure of the utility model;

[0024] Figure 2It is the front view of the dust removal mechanism of the present utility model;

[0025] Figure 3 It is the front view of the printing mechanism of the present utility model;

[0026] Figure 4 It is the present utility model Figure 3 side view;

[0027] In the figure: conveying mechanism 1; fixing frame 2; dust removal mechanism 3; negative pressure adsorption hood 301; first fixing groove 302; first pressing wheel 303; guiding inclined surface 304; flange plate 305; first pushing mechanism 306; telescopic pipe 307; printing mechanism 4; fixing seat 401; fixing plate 402; first guiding column 403; second pushing mechanism 404; second fixing groove 405; spring 406; second guiding column 407; printing roller 408; second pressing wheel 409; ear plate 410; drying mechanism 5. Specific implementation manner

[0028] As Figures 1 to 4 shown, a carton board printing device includes a dust removal mechanism 3, a printing mechanism 4 and a drying mechanism 5 arranged in sequence along the conveying direction of the conveying mechanism 1;

[0029] The dust removal mechanism 3 includes a lifting negative pressure adsorption hood 301, and a plurality of rotating first pressing wheels 303 are arranged on both sides of the negative pressure adsorption hood 301, and the first pressing wheels 303 are abutted against both sides of the cardboard;

[0030] At the bottom of the fixing seat 401 in the printing mechanism 4, there is a lifting fixing plate 402. In the middle of the fixing plate 402, there is a rotating printing roller 408 which abuts against the cardboard for printing. A plurality of rotating second pressing wheels 409 are arranged on both sides of the printing roller 408, and the second pressing wheels 409 are abutted against both sides of the cardboard. The cardboard enters from one end of the conveying mechanism 1 and successively passes through the dust removal mechanism 3, the printing mechanism 4 and the drying mechanism 5. The lifting adjustment of the negative pressure adsorption hood 301 in the dust removal mechanism 3 makes the first pressing wheels 303 abut against both sides of the cardboard, and at the same time, the dust on the cardboard is cleaned by means of negative pressure adsorption. Then, the fixing plate 402 in the printing mechanism 4 drives the printing roller 408 and the second pressing wheels 409 to abut against the cardboard. The second pressing wheels 409 can press both sides of the cardboard tightly, and the printing roller 408 can operate on the cardboard. The printed cardboard is dried by the drying mechanism 5 for the printing pigment to ensure the continuity of the printing process.

[0031] The conveying mechanism 1 is responsible for feeding the carton board into the entire production line in sequence.

[0032] The negative pressure adsorption hood 301 in the dust removal mechanism 3 contacts the cardboard through lifting adjustment, generating negative pressure suction to remove dust and impurities on the cardboard surface. The first pressing wheels 303 are located on both sides of the negative pressure adsorption hood, abutting against the edges of the cardboard to assist in stabilizing the position of the cardboard and prevent it from shifting during the dust removal process.

[0033] The fixed seat 401 in the printing mechanism 4 supports the entire printing mechanism. The lifting fixed plate 402 can adjust the height to ensure that the printing roller maintains an appropriate contact pressure with the cardboard.

[0034] The printing roller 408 directly contacts the cardboard and transfers the ink onto the cardboard. The second pressing wheels 409 are located on both sides of the printing roller, abutting against the edges of the cardboard to provide additional stability and ensure the flatness of the cardboard during the printing process.

[0035] The drying mechanism 5 immediately dries the ink on the cardboard after printing to avoid problems such as smudging or sticking caused by wet ink.

[0036] Preferably, a fixed frame 2 is provided above the conveying mechanism 1, and the dust removal mechanism 3, the printing mechanism 4, and the drying mechanism 5 are installed on the fixed frame 2. The fixed frame 2 is erected outside the conveying mechanism 1 for installing equipment.

[0037] The fixed frame must be strong enough to withstand the weight of all the equipment installed on it, while maintaining the stability of the entire system and avoiding shaking or displacement during operation. Since the printing, dust removal, and drying equipment may need to be adjusted according to the thickness or width of the cardboard box board, the fixed frame should have certain adjustment functions, such as adjustable height or width, to adapt to different specifications of cardboard.

[0038] The design of the fixed frame should ensure a reasonable spacing between the various functional modules, ensuring that the conveyed cardboard box board can pass smoothly through each workstation, while also facilitating maintenance and access by operators. Protective fences or covers need to be installed on the fixed frame to prevent operators from accidentally contacting high-speed rotating parts and ensure production safety. The fixed frame not only needs to support the installation of equipment, but also consider the integration of power, air pressure, and other control lines to ensure that all equipment can work efficiently and collaboratively.

[0039] Preferably, the bottom of the negative pressure adsorption hood 301 is a conical hood, and first fixing grooves 302 are fixedly provided on both sides of the conical hood. A plurality of first pressing wheels 303 are arranged to rotate in the first fixing grooves 302. The plurality of first pressing wheels 303 are evenly distributed along the length direction of the first fixing grooves 302, and the first pressing wheels 303 are used to abut against both sides of the cardboard.

[0040] The bottom of the negative pressure adsorption hood 301 is designed in a conical shape. This shape helps to form a concentrated negative pressure area, improving the adsorption efficiency. The conical design can also reduce the dead corners of air flow, making the negative pressure distribution more uniform, so as to cover the cardboard surface more comprehensively. The first fixing grooves 302 fixed on both sides of the conical hood are used to install the first pressing wheels 303. These fixing grooves are distributed along the edge of the conical hood to ensure that the pressing wheels can apply pressure stably and evenly on both sides of the cardboard.

[0041] Multiple first pressing wheels 303 are evenly distributed along the length direction of the first fixing grooves 302. Such a layout can ensure that the cardboard always travels in a straight line during transportation, preventing the cardboard from skewing or twisting due to uneven adsorption. The first pressing wheels 303 are in contact with the cardboard, which not only helps to stabilize the position of the cardboard, but also can further remove the tiny particles or fibers that may remain on the edge of the cardboard through physical contact while under negative pressure adsorption.

[0042] Preferably, a guiding inclined surface 304 is provided on one side of the first fixing groove 302. The guiding inclined surface 304 facilitates the entry of the cardboard. Especially when the corrugated cardboard is relatively thick, the pressing wheels on the guiding inclined surface 304 can compress the cardboard.

[0043] The guiding inclined surface 304 provides a smooth transition area for the cardboard to enter the dust removal mechanism 3, avoiding the cardboard suddenly encountering obstacles or resistance, which helps to prevent the cardboard from being damaged or deformed. When the relatively thick corrugated cardboard passes through the guiding inclined surface 304, the pressing wheels provided on the inclined surface can moderately compress the cardboard so that it can smoothly pass through the narrow space between the fixing groove 302 and the first pressing wheels 303 without getting stuck or causing equipment blockage.

[0044] The guiding inclined surface 304 also plays a guiding role to ensure that the cardboard accurately enters the predetermined path under the negative pressure adsorption hood 301, preventing the cardboard from shifting or skewing, thus ensuring the dust removal effect. By designing the guiding inclined surface 304, the friction when the cardboard contacts the equipment can be reduced, and the risk of cardboard damage caused by excessive frictional force can be lowered.

[0045] Preferably, a flange plate 305 is fixedly provided on the top of the negative pressure adsorption hood 301. The periphery of the flange plate 305 is connected to the fixing frame 2 through the first pushing mechanism 306. Through the first pushing mechanism 306, the flange plate 305 and the negative pressure adsorption hood 301 can be driven to lift and adjust, so as to adjust the thickness of the passing cardboard.

[0046] As a connecting part between the negative pressure adsorption hood 301 and the first pushing mechanism 306, the main function of the flange plate 305 is to provide a stable connection interface for the first pushing mechanism 306 to apply the lifting force. The first pushing mechanism 306 is responsible for driving the lifting movement of the flange plate 305 and the entire negative pressure adsorption hood 301. It is usually composed of an electric, pneumatic or hydraulic drive system, and can accurately control the lifting height to adapt to cardboard of different thicknesses.

[0047] The ability to adjust the thickness of the cardboard passing through means that the dust removal mechanism 301 can handle various materials from thin cardboard to thick corrugated cardboard, improving the versatility and production flexibility of the equipment. The correct gap setting is crucial to ensure that the cardboard is not damaged during the dust removal process while being able to fully contact the first pressing wheel 303 and the negative pressure adsorption cover 301. To achieve precise lifting control, the first pushing mechanism 306 is equipped with sensors and a controller to monitor and adjust the position of the negative pressure adsorption cover 301 to ensure that the distance between it and the cardboard is always in the optimal state.

[0048] Preferably, the top of the negative pressure adsorption cover 301 is connected to the air extraction fan through the telescopic tube 307. By the air extraction fan and the telescopic tube 307, air is extracted inside the negative pressure adsorption cover 301 to form a negative pressure, thereby cleaning the dust on the cardboard.

[0049] The use of the telescopic tube 307 allows the negative pressure adsorption cover 301 to maintain a stable connection with the air extraction fan during lifting adjustment. This design overcomes the limitations of traditional rigid pipes on moving components and provides greater operating freedom.

[0050] The air extraction fan is responsible for extracting air from inside the negative pressure adsorption cover 301 to form a negative pressure. This negative pressure force can attract and capture dust, impurities, and particles on the cardboard surface to ensure that the cardboard meets the cleaning standard before entering the printing process. The air extraction fan and the telescopic tube 307 work together to adjust the intensity of the negative pressure as needed. An appropriate negative pressure level is crucial for the cleaning effect, neither too weak to effectively remove dust nor too strong to cause the cardboard to deform or be damaged.

[0051] Preferably, first guide columns 403 and a second pushing mechanism 404 are provided between both sides of the fixed plate 402 and the fixed seat 401, and the first guide columns 403 are arranged on both sides of the second pushing mechanism 404;

[0052] One end of the first guide column 403 is fixed to the fixed seat 401, and the other end abuts against the fixed plate 402 through a sliding sleeve and slides thereon. By the second pushing mechanism 404, the fixed plate 402 can be pushed to move up and down, so that the second pressing wheel 409 and the printing roller 408 abut against the cardboard, and the first guide column 403 can ensure the smoothness of its up and down movement.

[0053] The first guiding column 403 serves as a guiding component for the lifting and moving of the fixing plate 402, ensuring the smooth movement of the fixing plate 402 in the vertical direction, preventing shaking or deviation during the lifting process, and ensuring uniform pressure when the printing roller 408 and the second pressing wheel 409 contact the cardboard. The second pushing mechanism 404 is responsible for driving the lifting of the fixing plate 402. Through precise control, the printing roller 408 and the second pressing wheel 409 can be made to abut against the cardboard with appropriate pressure, ensuring the printing quality while avoiding unnecessary damage to the cardboard.

[0054] The sliding sleeve is installed on the fixing plate 402 and forms a sliding fit with the first guiding column 403. This design ensures the smoothness and stability of the fixing plate 402 during up and down movement, reduces friction and vibration during movement, and improves the accuracy of the entire printing process. The second pushing mechanism 404 and the first guiding column 403 are usually connected to the control system of the entire printing mechanism. Through precise sensors and feedback mechanisms, the pressure of the printing roller 408 and the second pressing wheel 409 on the cardboard can be adjusted in real time to adapt to cardboard materials of different thicknesses or hardnesses.

[0055] Preferably, ear plates 410 are fixedly provided on both sides of the fixing plate 402, and both ends of the printing roller 408 abut against the ear plates 410 and rotate through bearings;

[0056] On both sides of the bottom of the fixing plate 402, there are sliding second fixing grooves 405. Both ends of the second fixing grooves 405 are connected to the fixing plate 402 through second guiding columns 407, and a plurality of second pressing wheels 409 are arranged to rotate in the second fixing grooves 405. The plurality of second pressing wheels 409 are evenly distributed along the length direction of the second fixing grooves 405 and are used to abut against both sides of the cardboard, thereby positioning it and preventing deviation during the printing process.

[0057] The ear plates 410 are fixed on both sides of the fixing plate 402 and are used to support the printing roller 408. Both ends of the printing roller 408 are connected to the ear plates 410 through bearings. This design allows the printing roller 408 to rotate smoothly, reduces wear, and ensures clear and consistent printed patterns.

[0058] The second fixing grooves 405 are slidably installed on both sides of the bottom of the fixing plate 402 and are connected to the fixing plate 402 through second guiding columns 407, ensuring the stability and position accuracy of the second fixing grooves 405 in the vertical direction. The second guiding columns 407 not only connect the fixing plate 402 and the second fixing grooves 405 but also serve as guiding devices to ensure the linear movement of the second fixing grooves 405 and the second pressing wheels 409 therein in the vertical direction, avoiding lateral deviation during the printing process.

[0059] The second pressing wheel 409 is arranged in the second fixed groove 405. Multiple pressing wheels are evenly distributed along the length direction of the groove. They abut against both sides of the cardboard during printing to position the cardboard, prevent offset during printing, and ensure the precise alignment of the printed pattern and high-quality output.

[0060] Preferably, a spring 406 is arranged outside the second guiding column 407. One end of the spring 406 abuts against the fixed plate 402, and the other end abuts against the second fixed groove 405. The second pressing wheel 409 abuts against the cardboard, and the spring 406 can provide a pressing tension to ensure the fixation of the cardboard.

[0061] One end of the spring 406 abuts against the fixed plate 402, and the other end abuts against the second fixed groove 405. When the second pressing wheel 409 abuts against the cardboard, the spring 406 is compressed to generate an upward force, which makes the second pressing wheel 409 tightly press on the cardboard, thus ensuring that the cardboard does not move or offset during printing.

[0062] The elastic characteristics of the spring 406 allow for fine adjustment of the second fixed groove 405 and the second pressing wheel 409 according to the actual thickness of the cardboard. When encountering thicker or thinner cardboard, the spring 406 can be compressed or extended accordingly to ensure that the second pressing wheel 409 can always press the cardboard with appropriate force, without damaging the cardboard due to excessive pressure or causing the cardboard to slide due to insufficient pressure.

[0063] The constant pressure provided by the spring 406 ensures the stability of the cardboard during printing, which is crucial for maintaining the accuracy and consistency of the printed pattern. Even when continuously printing cardboard of different thicknesses, the same printing quality can be maintained.

[0064] The above embodiments are only the preferred technical solutions of the present utility model and should not be regarded as limitations on the present utility model. The protection scope of the present utility model should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present utility model.

Claims

1. A carton board printing device, characterized in that: It includes a dust removal mechanism (3), a printing mechanism (4) and a drying mechanism (5) arranged in sequence along the conveying direction of the conveying mechanism (1); The dust removal mechanism (3) includes a lifting negative pressure adsorption cover (301). A plurality of rotating first pressing wheels (303) are arranged on both sides of the negative pressure adsorption cover (301), and the first pressing wheels (303) abut against both sides of the cardboard; At the bottom of the fixed seat (401) in the printing mechanism (4), there is a lifting fixed plate (402). In the middle of the fixed plate (402), there is a rotating printing roller (408). The printing roller (408) abuts against the cardboard for printing. A plurality of rotating second pressing wheels (409) are arranged on both sides of the printing roller (408), and the second pressing wheels (409) abut against both sides of the cardboard.

2. The carton board printing device according to claim 1, wherein: Above the conveying mechanism (1), there is a fixed frame (2), and the dust removal mechanism (3), the printing mechanism (4) and the drying mechanism (5) are installed on the fixed frame (2).

3. The carton board printing device according to claim 1, characterized in that: The bottom of the negative pressure adsorption cover (301) is a conical cover. First fixing grooves (302) are fixedly arranged on both sides of the conical cover, and a plurality of first pressing wheels (303) are arranged to rotate in the first fixing grooves (302).

4. The carton board printing device according to claim 3, characterized in that: One side of the first fixing groove (302) is provided with a guiding inclined surface (304).

5. The carton board printing device according to claim 1, wherein: At the top of the negative pressure adsorption cover (301), a flange plate (305) is fixedly arranged, and the peripheral side of the flange plate (305) is connected to the fixed frame (2) through a first pushing mechanism (306).

6. The carton board printing device according to claim 1, characterized in that: The top of the negative pressure adsorption cover (301) is connected to an air extraction fan through a telescopic pipe (307).

7. The carton board printing device according to claim 1, characterized in that: Between both sides of the fixed plate (402) and the fixed seat (401), there are first guiding columns (403) and a second pushing mechanism (404). The first guiding columns (403) are arranged on both sides of the second pushing mechanism (404); One end of the first guiding column (403) is fixed on the fixed seat (401), and the other end abuts against the fixed plate (402) and slides through a sliding sleeve.

8. The carton board printing device according to claim 1, characterized in that: Ear plates (410) are fixedly arranged on both sides of the fixed plate (402), and both ends of the printing roller (408) abut against the ear plates (410) and rotate through bearings; Sliding second fixing grooves (405) are arranged on both sides of the bottom of the fixed plate (402). Both ends of the second fixing grooves (405) are connected to the fixed plate (402) through second guiding columns (407), and a plurality of second pressing wheels (409) are arranged to rotate in the second fixing grooves (405).

9. The carton board printing device according to claim 8, characterized in that: A spring (406) is arranged on the outer side of the second guiding column (407). One end of the spring (406) abuts against the fixed plate (402), and the other end abuts against the second fixing groove (405).

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