Printing device for package printing

Abstract

The utility model discloses a printing device for package printing, and relates to the technical field of package printing. The material distributing device comprises a base, a material supplementing mechanism is arranged in a material distributing barrel, a movable plate is arranged at the bottom of a vertical rod, a spring is arranged on the outer side of the vertical rod in a sleeved mode, printing ink is contained in the bottom of the movable plate, and a connecting pipe is arranged at the bottom of the material distributing barrel. The movable plate is always located above the ink liquid level under the buoyancy effect of ink, the movable plate continuously moves downwards along with the ink liquid level along with continuous proceeding of printing operation and continuous consumption of the ink, when the movable plate moves downwards, the ink is pushed to be supplemented into the printing head through the connecting pipe, at the moment, the vertical rods move downwards, and according to the change of the length of the vertical rods exposed out of all the material distributing barrels, the printing head can be continuously fed into the printing head. The use condition of the ink can be visually monitored, the ink can be supplemented in time, and the situation that the ink is supplemented and replaced after being used up, and the printing efficiency of the printing device is affected is avoided.

Description

Technical Field

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

[0002] A printing press is a machine for printing text and images. Modern printing presses generally consist of mechanisms for plate mounting, inking, printing, and paper feeding (including folding). Its working principle is as follows: first, the text and images to be printed are made into a printing plate, which is then mounted on the printing press. The printing press then applies ink to the areas of the printing plate containing the text and images, which are then directly or indirectly transferred to paper or other substrates (such as textiles, metal plates, plastics, leather, wood, glass, and ceramics), thus reproducing a printed product identical to the printing plate. In the food packaging process, it is necessary to print patterns or text on food packaging bags; therefore, a printing press is required for packaging printing.

[0003] Existing printing equipment used for packaging printing typically cannot visually monitor ink usage when printing on food packaging. Replenishing ink after the printing equipment malfunctions severely delays printing operations and reduces printing efficiency. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a printing device for packaging printing, so as to solve the technical problem that existing printing devices for packaging printing cannot replenish ink in a timely manner, thus affecting the efficiency of use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a printing device for packaging printing, comprising a base, a U-shaped frame provided on one side of the top of the base, a storage bin provided on the top of the U-shaped frame, a dispensing cylinder provided inside the storage bin, a replenishing mechanism provided inside the dispensing cylinder, the replenishing mechanism comprising a vertical rod, a movable plate provided at the bottom of the vertical rod, a spring sleeved on the outside of the vertical rod, ink contained at the bottom of the movable plate, and a connecting pipe provided at the bottom of the dispensing cylinder.

[0006] By adopting the above technical solution, as printing continues, the ink is continuously consumed, and the moving plate moves downward with the ink level, pushing the ink through the connecting pipe to replenish the printing head. The downward movement of the moving plate can smoothly drive the vertical rod downward.

[0007] Furthermore, a printing head is provided at the end of the connecting pipe away from the dispensing cylinder, a support plate is provided on the printing head, and an electric push rod is fixedly connected to the top of the support plate.

[0008] By adopting the above technical solution, the support plate can provide stable support for the print head, ensuring that the print head can perform printing operations normally.

[0009] Furthermore, a transmission mechanism is provided below the printing head, and the transmission mechanism has air holes.

[0010] By adopting the above technical solution, the food packaging bag to be printed is continuously conveyed to the area directly below the printing head using a transmission mechanism, making it convenient for the printing head to print on it.

[0011] Furthermore, the spring is fixedly connected to the movable plate and the spring is fixedly connected to the dispensing cylinder.

[0012] By adopting the above technical solution, the spring's retraction and extension, and the force generated in the process, are used to assist the moving plate in pushing the ink down, so that the ink replenishment process is smoother.

[0013] Furthermore, the vertical rod is fixedly connected to the movable plate, and the movable plate engages with and slides against the distributing cylinder.

[0014] By adopting the above technical solution, the moving plate can move continuously up and down inside the material distribution cylinder, assisting the normal material replenishment of the material replenishment mechanism.

[0015] Furthermore, a plurality of connecting pipes are provided, and the number of connecting pipes is consistent with that of the dispensing cylinder, and the connecting pipes are made of corrugated pipe material.

[0016] By adopting the above technical solution, several connecting tubes can appropriately replenish the various inks required in the print head, ensuring continuous and stable printing.

[0017] Furthermore, the electric actuator is fixedly connected to the U-shaped frame, and the electric actuator is electrically connected to an external power source.

[0018] By adopting the above technical solution, the support plate is fixedly connected by the electric actuator to provide support for the printing head and ensure that the printing head has sufficient support force for printing operations.

[0019] In summary, the present invention has the following main advantages:

[0020] 1. This utility model, by setting up a vertical rod, a spring, and a movable plate, ensures that the movable plate is always positioned above the ink surface under the buoyancy of the ink. As the printing operation continues, the ink is continuously consumed, and the movable plate moves downward with the ink surface. When it moves downward, it pushes the ink through the connecting pipe to replenish the printing head. At this time, the vertical rod moves downward. According to the change in the length of the vertical rod exposed on each feed cylinder, the ink usage can be directly monitored and replenished in a timely manner, avoiding the need to replenish and replace the ink after it is exhausted, which would affect the printing efficiency of the printing device.

[0021] 2. This utility model incorporates a connecting pipe that replenishes the ink in the print head. The connecting pipe is made of corrugated material, and as the electric actuator drives the print head to rise and fall continuously, the connecting pipe can extend to a certain extent, continuously replenishing the ink required by the print head and ensuring the continuous and stable operation of the printing device. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0024] Figure 3 This is a partial sectional view of the structure of this utility model from the side.

[0025] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Base; 2. Conveying mechanism; 21. Air vent; 3. U-shaped frame; 4. Electric actuator; 5. Storage bin; 6. Distributing cylinder; 7. Feeding mechanism; 71. Vertical rod; 72. Spring; 73. Moving plate; 74. Ink; 75. Connecting pipe; 8. Printing head; 9. Support plate. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The embodiments of this utility model will be described below based on its overall structure.

[0029] A printing apparatus for packaging printing, such as Figures 1-4As shown, the device includes a base 1, a U-shaped frame 3 on one side of the top of the base 1, a storage tank 5 on the top of the U-shaped frame 3, a dispensing cylinder 6 inside the storage tank 5, and a replenishing mechanism 7 inside the dispensing cylinder 6. The replenishing mechanism 7 includes a vertical rod 71, a moving plate 73 at the bottom of the vertical rod 71, a spring 72 on the outside of the vertical rod 71, ink 74 at the bottom of the moving plate 73, and a connecting pipe 75 at the bottom of the dispensing cylinder 6. When printing continues, the ink 74 is continuously consumed, and the moving plate 73 moves downward with the ink 74 level, pushing the ink 74 through the connecting pipe 75 to replenish the printing head 8. The downward movement of the moving plate 73 can smoothly drive the vertical rod 71 downward. By observing the changes in the length of the vertical rods 71 ​​extending from each dispensing cylinder 6, the usage of ink 74 can be monitored more intuitively, so that the staff can replenish the ink 74 in the dispensing cylinder 6 in a timely manner, avoiding the need to replenish and replace the ink 74 after it is exhausted, which would affect the printing efficiency of the printing device.

[0030] See Figure 1 , 2 A printing head 8 is provided at the end of the connecting pipe 75 away from the dispensing cylinder 6. A support plate 9 is provided on the printing head 8. An electric push rod 4 is fixedly connected to the top of the support plate 9. The support plate 9 can provide stable support for the printing head 8, ensuring that the printing head 8 can perform printing operations normally. The electric push rod 4 can flexibly push the printing head 8 to perform printing as needed, and smoothly leave after the printing of each food packaging bag is completed, improving the degree of automation and thus improving the printing efficiency of the printing device.

[0031] See Figure 1 , 2 Below the printing head 8, there is a conveying mechanism 2 with an air hole 21. The conveying mechanism 2 continuously conveys the food packaging bag to be printed to the area directly below the printing head 8, making it convenient for the printing head 8 to print on it. The air hole 21 is designed to allow the use of a fan to draw air from the air hole 21, which will adhere the food packaging bag to the conveying mechanism 2 and prevent it from shifting due to its light weight, thus avoiding deviation in the printing position and affecting the printing quality.

[0032] See Figure 1 , 2 Springs 72 and 73 are fixedly connected to the moving plate 73 and the dispensing cylinder 6. The springs 72 retract and stretch, and the force generated in the process, assist the moving plate 73 in pushing the ink 74 down, so that the ink replenishment process is smoother. At the same time, the fixed connection between the springs 72 and the moving plate 73 and the dispensing cylinder 6 can prevent the vertical rod 71 from falling off, affecting the use of the replenishment mechanism 7 and the monitoring of the ink 74 usage.

[0033] See Figure 1 ,2 3 and 4, the vertical rod 71 is fixedly connected to the movable plate 73, and the movable plate 73 engages and slides with the dispensing cylinder 6, so that the movable plate 73 can continuously move up and down inside the dispensing cylinder 6 to assist the normal dispensing of the feeding mechanism 7. The fixed connection between the vertical rod 71 and the movable plate 73 allows the vertical rod 71 to move smoothly with the displacement of the movable plate 73. By observing the length of the vertical rod 71 exposed in the dispensing cylinder 6, the usage of ink 74 inside each dispensing cylinder 6 can be directly monitored.

[0034] See Figure 1 , 2 3 and 4, and the number of connecting tubes 75 is consistent with that of the dispensing cylinder 6. The connecting tubes 75 are made of corrugated pipe material. Several connecting tubes 75 can appropriately replenish the various inks 74 required in the printing head 8 to ensure that the printing head 8 can print continuously and stably. At the same time, due to the corrugated pipe material of the connecting tubes 75, when the electric push rod 4 drives the printing head 8 to rise and fall continuously, the connecting tubes 75 can extend to a certain extent to continuously replenish the inks 74 required by the printing head 8.

[0035] See Figure 1 , 2 3. The electric push rod 4 is fixedly connected to the U-shaped frame 3 and electrically connected to the external power source, so that the support plate 9 is fixedly connected through the electric push rod 4 to provide support for the printing head 8, ensuring that the printing head 8 has sufficient support force for printing operations. Furthermore, under the power drive, the electric push rod 4 can smoothly drive the printing head 8 to move up and down, so that it can smoothly approach or move away from the food packaging bag to continuously carry out printing operations.

[0036] In this embodiment, several dispensing cylinders 6 are provided, and each dispensing cylinder 6 has a conduit at its bottom and a solenoid valve at the conduit. When replenishing each dispensing cylinder 6, the solenoid valve can be opened, and ink 74 can be injected into the dispensing cylinder 6 through the conduit using an ink pump, which will smoothly lift the moving plate 73 on top of the ink 74.

[0037] In some other embodiments, a fan is provided at the bottom of the air hole 21. The fan draws air through the air hole 21 to adsorb the lightweight food packaging bag onto the conveying mechanism 2, so that the food packaging bag to be printed can be conveyed to the bottom of the printing head 8 for continuous printing.

[0038] The implementation principle of this embodiment is as follows: First, the power is turned on. At this time, the ink 74 in the dispensing cylinder 6 is full, the spring 72 is compressed to its limit, and the vertical rod 71 is lifted to the highest position. The food packaging bag to be printed is smoothly adsorbed onto the conveying mechanism 2 through the air hole 21 and conveyed to the bottom of the printing head 8 by the conveying mechanism 2. Second, the electric push rod 4 pushes the support plate 9 down, driving the printing head 8 down until the printing head 8 is in close contact with the surface of the food packaging bag for printing. Third, as the number of prints accumulates, the ink 74 inside the printing head 8 is continuously consumed. The ink 74 in the dispensing cylinder 6 is replenished to the ink 74 inside the printing head 8 through the connecting pipe 75. As the ink 74 inside the dispensing cylinder 6 is continuously consumed, the liquid level of the ink 74 inside the dispensing cylinder 6 drops, and the spring 72... As the elasticity gradually recovers, it pushes the moving plate 73 downward until it counteracts the buoyancy of the ink 74. At this point, it indicates that the ink 74 inside the print head 8 is full. Finally, as the ink in the dispensing cylinder 6 is continuously consumed, the elasticity of the spring 72 is fully recovered, and the moving plate 73 moves downward to its limit under the action of the spring 72. The vertical rod 71 is at its lowest position. At this time, the conduit is connected to the ink pump, and the solenoid valve at the conduit is opened to replenish the dispensing cylinder 6, which is at its lowest position with the vertical rod 71, with ink 74. As ink 74 is continuously replenished, it continuously pushes the moving plate 73 and the vertical rod 71 upward and continuously compresses the spring 72 until the spring 72 contracts to its limit. The replenishment operation is completed. The replenishment process does not require pausing the printing device, thereby improving the printing efficiency of the printing device to a certain extent.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A printing apparatus for packaging printing, comprising a base (1), characterized in that: A U-shaped frame (3) is provided on one side of the top of the base (1). A storage bin (5) is provided on the top of the U-shaped frame (3). A dispensing cylinder (6) is provided inside the storage bin (5). A feeding mechanism (7) is provided inside the dispensing cylinder (6). The feeding mechanism (7) includes a vertical rod (71). A movable plate (73) is provided at the bottom of the vertical rod (71). A spring (72) is sleeved on the outside of the vertical rod (71). Ink (74) is placed at the bottom of the movable plate (73). A connecting pipe (75) is provided at the bottom of the dispensing cylinder (6).

2. The printing apparatus for packaging printing according to claim 1, characterized in that: A printing head (8) is provided at the end of the connecting pipe (75) away from the dispensing cylinder (6). A support plate (9) is provided on the printing head (8), and an electric push rod (4) is fixedly connected to the top of the support plate (9).

3. The printing apparatus for packaging printing according to claim 2, characterized in that: A transmission mechanism (2) is provided below the printing head (8), and an air hole (21) is provided on the transmission mechanism (2).

4. The printing apparatus for packaging printing according to claim 1, characterized in that: The spring (72) is fixedly connected to the moving plate (73), and the spring (72) is fixedly connected to the dispensing cylinder (6).

5. The printing apparatus for packaging printing according to claim 1, characterized in that: The vertical rod (71) is fixedly connected to the movable plate (73), and the movable plate (73) engages with and slides against the distributing cylinder (6).

6. The printing apparatus for packaging printing according to claim 1, characterized in that: The connecting pipe (75) is provided in several parts, and the number of the connecting pipe (75) is consistent with that of the dispensing cylinder (6). The connecting pipe (75) is made of corrugated pipe material.

7. The printing apparatus for packaging printing according to claim 2, characterized in that: The electric push rod (4) is fixedly connected to the U-shaped frame (3), and the electric push rod (4) is electrically connected to an external power source.

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