A printing device for a carton

Abstract

The utility model discloses a printing device for packing box relates to printing device technical field, including the warehouse body, the cavity inside bottom of warehouse body is fixedly connected with first transmission belt, transmission sucking disc mechanism, second transmission belt and unloading collection platform gradually from right to left, the cavity top of warehouse body is fixedly connected with preheating spray board, cleaning brush wheel and printing processing mechanism gradually from right to left, the warehouse body provided by the utility model, under the basis of avoiding the printing of the surface existence impurity after entering printing device, increase the absorbency, drying and adhesion speed between paper packing box and ink simultaneously, thereby solve the existing printing device because packing box surface and device internal impurity influence ink adhesion, and the ink absorbency is poor, drying slow and adhesion not firm after printing, and further lead to the problem of low printing quality and packing box quality.

Description

Technical Field

[0001] This utility model relates to the field of printing apparatus technology, and specifically to a printing apparatus for packaging boxes. Background Technology

[0002] Printing equipment for paper packaging boxes mainly uses printing roller devices, which are mainly composed of printing plate rollers, ink rollers, etc. After being fed by the feeding mechanism, the ink is evenly transferred to the printing plate roller through the ink roller. The image areas on the surface of the printing plate roller will absorb ink, while the non-image areas will not be inked. Under pressure, the ink on the image areas of the printing plate roller is transferred to the surface of the paper packaging box, thus completing the printing process.

[0003] When existing printing equipment is in use, the surface of the packaging box often has residual paper scraps, dust, and other impurities from the production and transportation process. At the same time, paper scraps also fall into the printing equipment due to long-term use. These impurities can prevent the printing ink from adhering tightly to the surface of the paper packaging box, resulting in uneven ink adhesion, spots, and blurred patterns. This seriously affects the clarity and aesthetics of the print, reduces the quality of the printed products, and also presents technical problems such as poor ink absorption, slow drying, and poor ink adhesion after printing, leading to poor print quality and low-quality packaging boxes. Utility Model Content

[0004] In view of the problems existing in the above-mentioned printing apparatus for packaging boxes, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a printing device for packaging boxes, which solves the problems of poor printing quality and packaging box quality caused by impurities on the surface of the packaging box and inside the device affecting ink adhesion, poor ink absorption, slow drying and weak adhesion after printing.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A printing apparatus for packaging boxes includes a chamber, wherein a first conveyor belt, a drive suction cup mechanism, a second conveyor belt and a material collection platform are fixedly connected from right to left to the bottom of the chamber, and a preheating spray plate, a cleaning brush wheel and a printing processing mechanism are fixedly connected from right to left to the top of the chamber.

[0008] The top of the chamber is fixedly connected from right to left with a first heat source fan, an ink supply chamber, and a second heat source fan. The output end of the first heat source fan is fixedly connected to the input end of the preheating spray plate. The output end of the ink supply chamber is fixedly connected to the output end of the printing processing mechanism. The output end of the second heat source fan is fixedly connected to the output end of the printing processing mechanism. A feed inlet is opened at one end of the side wall of the chamber, and the feed inlet corresponds to the position of the first conveyor belt. The transmission suction cup mechanism includes a U-shaped plate. Electric rollers are fixedly connected to both ends of the side walls of the U-shaped plate through openings. A suction cup positioning assembly is fixedly connected to the top of the U-shaped plate.

[0009] Preferably, the suction cup positioning assembly includes a negative pressure device, an electric push rod, a hollow plate, and suction cups. The top of the negative pressure device is fixedly connected to the electric push rod, and the top of the electric push rod is fixedly connected to the hollow plate. Multiple suction cups are fixedly connected to the top of the hollow plate through an opening. The input end of the hollow plate is fixedly connected to the output end of the negative pressure device.

[0010] Preferably, the printing processing mechanism includes a hydraulic cylinder, which is fixedly connected to the top of the chamber. One end of the hydraulic cylinder passes through the top of the chamber and is fixedly connected to a support plate. From right to left, the bottom of the support plate is fixedly connected to an oiling roller device, a printing roller device, and a drying spray plate. The input ends of the oiling roller device and the printing roller device are both fixedly connected to the output end of the ink supply chamber. The input end of the drying spray plate is fixedly connected to the output end of the second heat source fan.

[0011] Preferably, a liquid storage tank is fixedly connected to both ends of the cavity of the ink supply chamber. A feed valve is fixedly connected to the top input end of the liquid storage tank at both ends. A feed pump is fixedly connected to the bottom output end of the liquid storage tank at both ends. A feed hose is fixedly connected to the other end of the feed pump at both ends. The other end of the feed hose at both ends is fixedly connected to the input end of the oiling roller device and the printing roller device, respectively.

[0012] Furthermore, both the preheating spray plate and the drying spray plate are hollow plates, and multiple air outlets are provided at the bottom.

[0013] Preferably, the cleaning brush wheel is an electric roller with a nylon bristle layer on its outer wall.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model utilizes a cleaning brush wheel to clean impurities from the surface of the packaging box and inside the device. The suction cup positioning component flexibly adjusts the suction force according to the size and weight of the packaging box, ensuring the stability of the packaging box during cleaning and preventing it from shifting or shaking. This allows the ink to adhere tightly to the surface of the packaging box, significantly improving the clarity and integrity of the printed images and text. At the same time, the oiling roller device pre-coats the surface of the packaging box with varnish, filling the pores on the paper surface and forming a smooth base, making the ink transfer more uniform. This improves the vibrancy, fineness, and dot clarity of the printed pattern, reduces ink accumulation or uneven penetration, and effectively enhances the clarity and color reproduction of the printed images and text.

[0016] 2. This utility model utilizes a first heat source fan and a preheating spray plate to preheat the packaging box before it enters the printing process. This greatly enhances the paper packaging box's ability to absorb ink, allowing the ink to penetrate the paper more quickly and evenly, reducing ink accumulation on the surface. The varnish layer applied by the coating roller device enhances the adhesion between the ink and the packaging box surface, reducing the risk of ink peeling off and improving the wear resistance and durability of the printed pattern. The printing process forms an integrated process of coating, printing, and drying. The drying spray plate, in conjunction with the second heat source fan, quickly dries the packaging box, accelerating the evaporation rate of the solvents in the ink and varnish. This avoids problems such as pattern smudging and adhesion caused by slow ink drying, ensuring the integrity and clarity of the printed pattern.

[0017] 3. This utility model utilizes an electric roller to drive the packaging box to move smoothly after cleaning, while a suction cup positioning component can adsorb and position the packaging box for efficient cleaning. The printing processing mechanism adjusts the height of the oiling roller device, printing roller device, and drying spray plate through hydraulic cylinders and support plates to achieve automated oiling, printing, and drying processes. The ink supply tank provides raw materials to the oiling roller device and printing roller device through different feeding components to ensure continuous printing. The preheating spray plate and drying spray plate spray heat sources of different temperatures through multiple air outlets to preheat and dry the packaging box. The entire device has a high degree of automation and effectively improves production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a front sectional view of the present invention;

[0021] Figure 3 This is a top sectional view of the present invention;

[0022] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of part A.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Storage chamber; 2. First conveyor belt; 3. Drive suction cup mechanism; 4. Second conveyor belt; 5. Material collection platform; 6. Preheating spray plate; 7. Cleaning brush wheel; 8. Printing processing mechanism; 9. First heat source fan; 10. Ink supply chamber; 11. Second heat source fan; 12. Feed inlet; 13. U-shaped plate; 14. Electric roller; 15. Suction cup positioning assembly; 16. Negative pressure device; 17. Electric push rod; 18. Hollow plate; 19. Suction cup; 20. Hydraulic cylinder; 21. Support plate; 22. Oiling roller device; 23. Printing roller device; 24. Drying spray plate; 25. Liquid storage tank; 26. Feed valve; 27. Feed pump; 28. Feed hose; 29. ​​Air outlet; 30. Nylon brush layer. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model discloses a printing apparatus for packaging boxes.

[0027] This utility model provides, for example Figure 1-3 The printing apparatus for packaging boxes shown includes a chamber 1. From right to left, a first conveyor belt 2, a transmission suction cup mechanism 3, a second conveyor belt 4 and a material collection platform 5 are fixedly connected to the bottom of the chamber 1. From right to left, a preheating spray plate 6, a cleaning brush wheel 7 and a printing processing mechanism 8 are fixedly connected to the top of the chamber 1.

[0028] From right to left, the top of the chamber 1 is fixedly connected to a first heat source fan 9, an ink supply chamber 10, and a second heat source fan 11. The output end of the first heat source fan 9 is fixedly connected to the input end of the preheating spray plate 6. The output end of the ink supply chamber 10 is fixedly connected to the output end of the printing processing mechanism 8. The output end of the second heat source fan 11 is fixedly connected to the output end of the printing processing mechanism 8. A feed inlet 12 is provided at one end of the side wall of the chamber 1, and the feed inlet 12 corresponds to the position of the first conveyor belt 2. A drive suction cup mechanism 3 is also included. The device includes a U-shaped plate 13, with electric rollers 14 fixedly connected to both ends of the U-shaped plate 13 via openings. A suction cup positioning assembly 15 is fixedly connected to the top of the U-shaped plate 13. Using a cleaning brush wheel 7 located at the top of the cavity 1, the device, in conjunction with the transmission suction cup mechanism 3, efficiently cleans paper scraps, dust, and other impurities that fall onto the surface of the packaging box and inside the device as the packaging box moves with the first conveyor belt 2. This ensures that the ink adheres tightly to the surface of the packaging box, significantly improving the clarity and integrity of the printed graphics. The first heat source fan 9 and the preheating spray plate 6 are placed to preheat the packaging box before it enters the printing process, which greatly improves the paper packaging box's ability to absorb ink. The preheating allows the ink to penetrate into the paper more quickly and evenly, reducing ink accumulation on the surface. The printing processing mechanism 8 forms an integrated process of oiling, printing and drying, which effectively solves the problems of poor ink adhesion and slow drying, and significantly improves the wear resistance and durability of the printed pattern. The transmission suction cup mechanism 3 is set up, which consists of a U-shaped plate 13, an electric roller 14 and a suction cup positioning component 15. The suction cup positioning component 15 can flexibly adjust the suction force according to the size and weight of the packaging box through the negative pressure device 16 to ensure that the packaging box does not shift or shake during the cleaning process. After cleaning, the electric roller 14 drives the packaging box to move smoothly after the current position, thereby solving the problem that the existing printing device is affected by impurities on the surface of the packaging box and inside the device, which affects ink adhesion, and the ink has poor absorption, slow drying and poor adhesion after printing, resulting in low printing quality and packaging box quality.

[0029] To achieve adsorption and positioning of the packaging box for easy cleaning, such as Figure 2-4As shown, the suction cup positioning assembly 15 includes a negative pressure device 16, an electric push rod 17, a hollow plate 18, and suction cups 19. The top of the negative pressure device 16 is fixedly connected to the electric push rod 17, and the top of the electric push rod 17 is fixedly connected to the hollow plate 18. Multiple suction cups 19 are fixedly connected to the top of the hollow plate 18 through an opening. The input end of the hollow plate 18 is fixedly connected to the output end of the negative pressure device 16. By using the suction cup positioning assembly 15 composed of the negative pressure device 16, the electric push rod 17, the hollow plate 18, and the suction cups 19, the negative pressure device 16 can use a vacuum generator or vacuum pump or other device that can generate negative pressure suction. The hollow plate 18 is connected to the hollow plate 18 through an output pipe, and the packaging box is adsorbed and fixed by the hollow plate 18 and the multiple suction cups 19 on its surface, so as to avoid the packaging box moving during the brushing cleaning process and affecting work efficiency. The electric push rod 17 can be used to adjust the height of the packaging box and its contact with the cleaning brush wheel 7 after adsorption.

[0030] To enhance the adhesion between the ink and the packaging box surface and improve drying efficiency, such as Figure 2 The printing processing mechanism 8 includes a hydraulic cylinder 20, which is fixedly connected to the top of the chamber 1. One end of the hydraulic cylinder 20 passes through the top of the chamber 1 and is fixedly connected to a support plate 21. From right to left, the bottom of the support plate 21 is fixedly connected to an oiling roller assembly 22, a printing roller assembly 23, and a drying spray plate 24. The input ends of the oiling roller assembly 22 and the printing roller assembly 23 are fixedly connected to the output end of the ink supply chamber 10. The input end of the drying spray plate 24 is fixedly connected to the output end of the second heat source fan 11. By utilizing the printing processing mechanism 8, which consists of the hydraulic cylinder 20, support plate 21, oiling roller assembly 22, printing roller assembly 23, and drying spray plate 24, the hydraulic cylinder 20 and support plate 21 support the oiling roller assembly 22, the printing roller assembly 23, and the drying spray plate 24 while simultaneously adjusting their height. This allows the oiling roller assembly 22 and the printing roller assembly 23 to contact the surface of the packaging box for printing and varnishing. The oil roller device 22 pre-coats the surface of the packaging box with varnish, which fills the pores on the paper surface and forms a smooth and flat coating layer, providing a good base for ink adhesion, making ink transfer more uniform, the printed pattern more vibrant and delicate in color, and the halftone dots clearer. It reduces the problem of ink accumulation or uneven penetration caused by the rough paper surface, effectively improving the clarity and color reproduction of the printed images. At the same time, the varnish layer can enhance the adhesion between the ink and the surface of the packaging box, reduce the risk of ink peeling off, and improve the wear resistance and durability of the printed pattern. After printing, the packaging box is quickly dried by the drying spray plate 24 in conjunction with the second heat source fan 11, which accelerates the evaporation rate of the solvent in the ink and varnish, shortens the drying time, and improves production efficiency. It avoids problems such as pattern smudging and sticking caused by slow ink drying, ensuring the integrity and clarity of the printed pattern. At the same time, the uniform and stable drying process can fully cure the varnish to form a dense protective film, further improving the surface performance of the packaging box.

[0031] In order to provide raw materials for pre-coating varnish and printing ink to the coating roller assembly 22 and the printing roller assembly 23, such as... Figure 1 and 2 As shown, the ink supply chamber 10 has two fixedly connected storage tanks 25 at its two ends. The top input end of the two storage tanks 25 is fixedly connected to a feed valve 26, and the bottom output end of the two storage tanks 25 is fixedly connected to a feed pump 27. The other end of the two feed pumps 27 is fixedly connected to a feed hose 28, and the other end of the two feed hoses 28 is fixedly connected to the input ends of the coating roller device 22 and the printing roller device 23, respectively. By using the ink supply chamber 10, which is composed of two different storage tanks 25, feed valves 26, feed pumps 27 and feed hoses 28, the raw materials for pre-coating varnish and printing ink are provided to the coating roller device 22 and the printing roller device 23 through different feeding components.

[0032] In order to achieve the preheating and drying of the packaging boxes, such as Figure 2 As shown, both the preheating spray plate 6 and the drying spray plate 24 are hollow plates with multiple air outlets 29 at the bottom. By using the preheating spray plate 6 and the drying spray plate 24, which are hollow plates with multiple air outlets 29 at the bottom, heat sources of different temperatures inside the cavity are sprayed out through the multiple air outlets 29 to preheat and dry the packaging box.

[0033] To clean the packaging boxes by brushing, such as Figure 2 and 4 As shown, the cleaning brush wheel 7 includes an electric roller and a nylon bristle layer 30 on the outer wall. The cleaning brush wheel 7, which is an electric roller and has a nylon bristle layer 30 on the outer wall, is used to clean the packaging box after it is adsorbed by the suction cup positioning component 15, so as to avoid impurities on the surface from affecting the printing effect.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A printing apparatus for packaging boxes, comprising a chamber (1), characterized in that, The bottom of the cavity of the chamber (1) is fixedly connected from right to left to a first conveyor belt (2), a transmission suction cup mechanism (3), a second conveyor belt (4) and a material collection platform (5), and the top of the cavity of the chamber (1) is fixedly connected from right to left to a preheating spray plate (6), a cleaning brush wheel (7) and a printing processing mechanism (8). The top of the chamber (1) is fixedly connected from right to left with a first heat source fan (9), an ink supply chamber (10), and a second heat source fan (11). The output end of the first heat source fan (9) is fixedly connected to the input end of the preheating spray plate (6). The output end of the ink supply chamber (10) is fixedly connected to the output end of the printing processing mechanism (8). The output end of the second heat source fan (11) is fixedly connected to the output end of the printing processing mechanism (8). One end of the side wall of the chamber (1) is provided with a feed inlet (12). The feed inlet (12) corresponds to the position of the first conveyor belt (2). The transmission suction cup mechanism (3) includes a U-shaped plate (13). The two side walls of the U-shaped plate (13) are fixedly connected with electric rollers (14) through openings. The top of the U-shaped plate (13) is fixedly connected with a suction cup positioning assembly (15).

2. The printing apparatus for packaging boxes according to claim 1, characterized in that, The suction cup positioning assembly (15) includes a negative pressure device (16), an electric push rod (17), a hollow plate (18), and suction cups (19). The top of the negative pressure device (16) is fixedly connected to the electric push rod (17), and the top of the electric push rod (17) is fixedly connected to the hollow plate (18). Multiple suction cups (19) are fixedly connected to the top of the hollow plate (18) through an opening. The input end of the hollow plate (18) is fixedly connected to the output end of the negative pressure device (16).

3. The printing apparatus for packaging boxes according to claim 1, characterized in that, The printing processing mechanism (8) includes a hydraulic cylinder (20), which is fixedly connected to the top of the chamber (1). One end of the hydraulic cylinder (20) passes through the top of the chamber (1) and is fixedly connected to a support plate (21). From right to left, the bottom of the support plate (21) is fixedly connected to an oiling roller device (22), a printing roller device (23), and a drying spray plate (24). The input ends of the oiling roller device (22) and the printing roller device (23) are fixedly connected to the output end of the ink supply chamber (10), and the input end of the drying spray plate (24) is fixedly connected to the output end of the second heat source fan (11).

4. The printing apparatus for packaging boxes according to claim 1, characterized in that, The ink supply chamber (10) has a liquid storage tank (25) fixedly connected to both ends of the cavity. The top input end of the liquid storage tank (25) is fixedly connected to a feed valve (26). The bottom output end of the liquid storage tank (25) is fixedly connected to a feed pump (27). The other end of the feed pump (27) is fixedly connected to a feed hose (28). The other end of the feed hose (28) is fixedly connected to the input end of the oiling roller device (22) and the printing roller device (23), respectively.

5. A printing apparatus for packaging boxes according to claim 1, characterized in that, Both the preheating spray plate (6) and the drying spray plate (24) are hollow plates, and multiple air outlets (29) are provided at the bottom.

6. A printing apparatus for packaging boxes according to claim 1, characterized in that, The cleaning brush wheel (7) includes an electric roller and has a nylon bristle layer (30) on its outer wall.

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