Food packaging bag printing device

Abstract

The utility model discloses a food packaging bag printing device, and relates to the technical field of packaging bag printing, the food packaging bag printing device comprises a first fixing frame and a slicking mechanism, the upper part of the first fixing frame is fixedly connected with a printing machine main body, and one side of the first fixing frame is provided with a second fixing frame; the upper portion of the second fixing frame is rotationally connected with a guide roller, a first feeding roller and a second feeding roller, and the slicking mechanism is fixedly connected with the upper portion of the second fixing frame. And the scraper is tightly attached to the surface of the raw material, wrinkles on the surface of the raw material can be conveniently scraped by the scraper, the position of the scraper is accurately adjusted by rotating a first adjusting screw, and the raw materials with different thicknesses can be sufficiently scraped by the scraper.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging bag printing, in particular to a food packaging bag printing device. Background Art

[0002] A food packaging bag printing device is a printing device that can print required characters, patterns and other information on the surface of food packaging bags, accurately transfer the designed patterns and characters to the food packaging bags, increase the aesthetics of the packaging and the accuracy of information transmission. The application of the food packaging bag printing device not only improves the appearance attraction of food, but also helps to enhance the brand image, and is also an important means to effectively convey product information.

[0003] For example, the publication number: CN217968882U discloses "a food packaging bag printing clamping device", where fixed rings are symmetrically and fixedly arranged on the outer side wall of the fastening roller, fixed columns are symmetrically and fixedly arranged on one side of the fixed ring, and a square through groove is arranged through the fixed column and extends into the fixed ring; the clamping and limiting assembly includes a regulating rod, a movable limiting clamping ring and a protective pad; the fastening assembly includes a positioning card slot, a connecting slot, a clamping plate, an arc-shaped fastening groove, an internally threaded connecting ring and a fastening convex ring.

[0004] However, in the prior art, when the printing device performs printing operations on food packaging bags, the plastic bag raw materials are fed through a feeding device. Since the outer raw materials are easily pulled or squeezed during storage and transportation, wrinkles appear on the surface of the outer raw materials. Although the existing printing equipment mainly adjusts the tension during raw material feeding to ensure stable raw material feeding and remove some wrinkles, to fully remove the wrinkles on the raw material surface, the tension needs to be increased. Excessive tension will cause the raw materials to be overstretched. After the overstretched food packaging bags are printed, due to the elastic effect of the plastic, partial shrinkage will occur. The printed patterns or characters on the surface of the shrunk food packaging bags will be deformed, resulting in a decline in printing quality. At the same time, excessive tension will cause the raw materials to be overstretched, resulting in a decrease in the thickness of the produced food packaging bags and a decline in quality. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem in the prior art that to fully remove the wrinkles on the raw material surface, the tension needs to be increased. Excessive tension will cause the raw materials to be overstretched. After the overstretched food packaging bags are printed, due to the elastic effect of the plastic, partial shrinkage will occur. The printed patterns or characters on the surface of the shrunk food packaging bags will be deformed, resulting in a decline in printing quality. At the same time, excessive tension will cause the raw materials to be overstretched, resulting in a decrease in the thickness of the produced food packaging bags and a decline in quality, and to propose a food packaging bag printing device.

[0006] To achieve the above object, the utility model adopts the following technical solution: a food packaging bag printing device, including a first fixing frame and a leveling mechanism. The upper part of the first fixing frame is fixedly connected with a printing machine main body. A second fixing frame is installed on one side of the first fixing frame. A guiding roller, a first feeding roller and a second feeding roller are respectively rotatably connected to the upper part of the second fixing frame. The leveling mechanism is fixedly connected to the upper part of the second fixing frame. The leveling mechanism includes a first slide rail and a first adjusting screw. A first slider is slidably connected inside the first slide rail. One end of the first slider is fixedly connected with a fixing plate. A scraping plate is fixedly connected to the side surface of the fixing plate. The scraping plate is located on the side of the first feeding roller. The first adjusting screw is rotatably connected with the first slide rail, and the first adjusting screw is threadedly connected with the first slider.

[0007] Preferably, a tension adjusting mechanism is respectively fixedly connected to the upper part of the second fixing frame, and a lateral limiting mechanism is fixedly connected to the upper part of the second fixing frame. The lateral limiting mechanism is located on the side of the tension adjusting mechanism.

[0008] Preferably, the tension adjusting mechanism includes a mounting frame. A second adjusting screw is rotatably connected to the upper part of the mounting frame. A connecting frame is threadedly connected to the surface of the second adjusting screw. A tension adjusting roller is rotatably connected to the side surface of the connecting frame.

[0009] Preferably, a limiting plate is fixedly connected to the side surface of the mounting frame. The connecting frame is slidably connected to the limiting plate.

[0010] Preferably, the lateral limiting mechanism includes a second slide rail. A second slider is slidably connected inside the second slide rail. One end of the second slider is fixedly connected with a guiding plate. A third adjusting screw is rotatably connected to the surface of the second slide rail. The third adjusting screw is threadedly connected with the second slider.

[0011] Preferably, a guiding groove is arranged on the side surface of the guiding plate, and both ends of the guiding groove are in an eight-shaped shape.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0013] 1. In the utility model, by rotating the first adjusting screw to drive the first slider to slide inside the first slide rail, the positions of the fixing plate and the scraping plate are adjusted, so that the scraping plate is closely attached to the surface of the raw material, which is convenient for the scraping plate to level the wrinkles on the surface of the raw material. By rotating the first adjusting screw, the position of the scraping plate is accurately adjusted, so that the scraping plate can fully level raw materials with different thicknesses.

[0014] 2. In the present utility model, the two sides of the raw material are limited by the guide plate and the guide groove, improving the stability of the raw material during feeding and printing. By rotating the third adjusting screw rod, the second slider slides along the second slide rail, thereby adjusting the position of the guide plate, facilitating the limiting feeding of raw materials with different widths by the guide plate. Description of the Drawings

[0015] Figure 1 It is the first three-dimensional structural schematic diagram of a food packaging bag printing device proposed by the present utility model;

[0016] Figure 2 It is the second three-dimensional structural schematic diagram of a food packaging bag printing device proposed by the present utility model;

[0017] Figure 3 It is the top view structural schematic diagram of a food packaging bag printing device proposed by the present utility model;

[0018] Figure 4 It is the sectional three-dimensional structural schematic diagram of the first slide rail and the first slider in a food packaging bag printing device proposed by the present utility model;

[0019] Figure 5 It is the three-dimensional structural schematic diagram of the tension adjusting mechanism in a food packaging bag printing device proposed by the present utility model;

[0020] Figure 6 It is the sectional three-dimensional structural schematic diagram of the second slide rail and the second slider in a food packaging bag printing device proposed by the present utility model.

[0021] Legend: 1. First fixed frame; 2. Printing machine main body; 3. Second fixed frame; 4. Scraping mechanism; 41. First slide rail; 42. First slider; 43. First adjusting screw rod; 44. Fixed plate; 45. Scraper; 5. Tension adjusting mechanism; 51. Mounting frame; 52. Limiting plate; 53. Second adjusting screw rod; 54. Connecting frame; 55. Tension adjusting roller; 6. Lateral limiting mechanism; 61. Second slide rail; 62. Second slider; 63. Third adjusting screw rod; 64. Guide plate; 65. Guide groove; 7. Guide roller; 8. First feeding roller; 9. Second feeding roller. Detailed Implementation Manner

[0022] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0024] Embodiment 1: As Figures 1-4 shown, the present utility model provides a printing device for food packaging bags, including a first fixing frame 1 and a leveling mechanism 4. A printing machine main body 2 is fixedly connected to the upper part of the first fixing frame 1. A second fixing frame 3 is installed on one side of the first fixing frame 1. A guide roller 7, a first feeding roller 8 and a second feeding roller 9 are respectively rotatably connected to the upper part of the second fixing frame 3. The leveling mechanism 4 is fixedly connected to the upper part of the second fixing frame 3. The leveling mechanism 4 includes a first slide rail 41 and a first adjusting screw 43. A first slider 42 is slidably connected inside the first slide rail 41. One end of the first slider 42 is fixedly connected to a fixing plate 44. A scraping plate 45 is fixedly connected to the side surface of the fixing plate 44. The scraping plate 45 is located on the side of the first feeding roller 8. The first adjusting screw 43 is rotatably connected to the first slide rail 41 and is threadedly connected to the first slider 42.

[0025] The following specifically describes the specific settings and functions of this embodiment. Through the feeding device, feeding operations are carried out from the side of the second fixing frame 3. The raw materials of the food packaging bags are passed through the bottom of the guide roller 7 and then passed out through the upper part of the first feeding roller 8. Finally, they enter the printing machine main body 2 through the bottoms of the second feeding roller 9 and the tension adjusting roller 55 for printing. The printed food packaging bags are wound up by an external winding device. After the raw materials pass through the surface of the first feeding roller 8, by rotating the first adjusting screw 43, the first slider 42 is driven to slide inside the first slide rail 41, so as to adjust the positions of the fixing plate 44 and the scraping plate 45, making the scraping plate 45 closely fit the surface of the raw materials, which is convenient for the scraping plate 45 to scrape the wrinkles on the surface of the raw materials flat. By rotating the first adjusting screw 43, the position of the scraping plate 45 can be accurately adjusted, so that the scraping plate 45 can fully scrape the raw materials with different thicknesses flat.

[0026] Embodiment 2: As Figures 1-6As shown in the figure, tension adjusting mechanisms 5 are fixedly connected to the upper part of the second fixing frame 3 respectively, and a lateral limiting mechanism 6 is fixedly connected to the upper part of the second fixing frame 3. The lateral limiting mechanism 6 is located on the side of the tension adjusting mechanism 5. The tension adjusting mechanism 5 includes a mounting frame 51. A second adjusting screw rod 53 is rotatably connected to the upper part of the mounting frame 51. A connecting frame 54 is threadedly connected to the surface of the second adjusting screw rod 53. A tension adjusting roller 55 is rotatably connected to the side of the connecting frame 54. A limiting plate 52 is fixedly connected to the side of the mounting frame 51. The connecting frame 54 is slidably connected to the limiting plate 52. The lateral limiting mechanism 6 includes a second slide rail 61. A second slider 62 is slidably connected to the inside of the second slide rail 61. A guide plate 64 is fixedly connected to the end of the second slider 62. A third adjusting screw rod 63 is rotatably connected to the surface of the second slide rail 61. The third adjusting screw rod 63 is threadedly connected to the second slider 62. A guide groove 65 is arranged on the side of the guide plate 64. The two ends of the guide groove 65 are in an eight-shaped configuration.

[0027] The effect achieved by the entire embodiment is that by rotating the second adjusting screw rod 53, the connecting frame 54 is driven to adjust the height, thereby adjusting the tension of the tension adjusting roller 55 on the raw material, avoiding excessive or too small tension during the movement of the raw material. The limiting plate 52 limits the connecting frame 54 to improve the stability of the up-and-down movement of the connecting frame 54. The guide plate 64 and the guide groove 65 limit both sides of the raw material to improve the stability of the raw material during feeding and printing. By rotating the third adjusting screw rod 63, the second slider 62 is driven to slide along the second slide rail 61, and then the position of the guide plate 64 is adjusted to facilitate the guide plate 64 to limit and feed raw materials of different widths.

[0028] The usage method and working principle of this device: Feeding operation is carried out from the side of the second fixing frame 3 through a feeding device. The raw material of the food packaging bag passes through the bottom of the guide roller 7 and then passes out through the upper part of the first feeding roller 8. Finally, it enters the printing machine main body 2 through the bottom of the second feeding roller 9 and the tension adjusting roller 55 for printing. The printed food packaging bag is wound by an external winding device. After the raw material passes through the surface of the first feeding roller 8, by rotating the first adjusting screw rod 43, the first slider 42 is driven to slide along the inside of the first slide rail 41, thereby adjusting the positions of the fixing plate 44 and the scraping plate 45 to make the scraping plate 45 closely fit the surface of the raw material;

[0029] By rotating the second adjusting screw rod 53, the connecting frame 54 is driven to adjust the height, thereby adjusting the tension of the tension adjusting roller 55 on the raw material. The guide plate 64 and the guide groove 65 limit both sides of the raw material to improve the stability of the raw material during feeding and printing. By rotating the third adjusting screw rod 63, the second slider 62 is driven to slide along the second slide rail 61, and then the position of the guide plate 64 is adjusted.

[0030] The above are only the preferred embodiments of the present utility model and do not constitute other forms of limitation to the present utility model. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A food packaging bag printing device, comprising a first fixing frame (1) and a leveling mechanism (4). The upper part of the first fixing frame (1) is fixedly connected to a printing machine main body (2). A second fixing frame (3) is installed on one side of the first fixing frame (1). A guide roller (7), a first feeding roller (8) and a second feeding roller (9) are respectively rotatably connected to the upper part of the second fixing frame (3). The leveling mechanism (4) is fixedly connected to the upper part of the second fixing frame (3), and it is characterized in that: The leveling mechanism (4) includes a first slide rail (41) and a first adjusting screw (43). A first slider (42) is slidably connected inside the first slide rail (41). One end of the first slider (42) is fixedly connected to a fixing plate (44). A scraping plate (45) is fixedly connected to the side surface of the fixing plate (44). The scraping plate (45) is located on the side of the first loading roller (8). The first adjusting screw (43) is rotatably connected to the first slide rail (41), and the first adjusting screw (43) is threadedly connected to the first slider (42).

2. The printing device for a food packaging bag according to claim 1, wherein: A tension adjusting mechanism (5) is fixedly connected to the upper part of the second fixing frame (3) respectively, and a lateral limiting mechanism (6) is fixedly connected to the upper part of the second fixing frame (3). The lateral limiting mechanism (6) is located on the side of the tension adjusting mechanism (5).

3. The food packaging bag printing device according to claim 2, wherein: The tension adjusting mechanism (5) includes a mounting frame (51). A second adjusting screw (53) is rotatably connected to the upper part of the mounting frame (51). A connecting frame (54) is threadedly connected to the surface of the second adjusting screw (53). A tension adjusting roller (55) is rotatably connected to the side surface of the connecting frame (54).

4. The food packaging bag printing device according to claim 3, wherein: A limiting plate (52) is fixedly connected to the side surface of the mounting frame (51). The connecting frame (54) is slidably connected to the limiting plate (52).

5. The food packaging bag printing device according to claim 2, wherein: The lateral limiting mechanism (6) includes a second slide rail (61). A second slider (62) is slidably connected inside the second slide rail (61). One end of the second slider (62) is fixedly connected to a guiding plate (64). A third adjusting screw (63) is rotatably connected to the surface of the second slide rail (61). The third adjusting screw (63) is threadedly connected to the second slider (62).

6. The printing device for a food packaging bag according to claim 5, wherein: A guiding groove (65) is arranged on the side surface of the guiding plate (64). Both ends of the guiding groove (65) are in a shape of an eight characters.

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