Food packaging bag color printing device

Abstract

The utility model discloses a food packaging bag color printing device, and relates to the technical field of packaging bag color printing. The utility model provides a food packaging bag color printing device which comprises a mounting rack, a mounting plate frame is fixedly connected to the mounting rack, a placing roller is rotationally connected to one side of the mounting rack, transversely symmetrical guide rollers are rotationally connected to the mounting rack, and a winding roller is rotationally connected to the other side of the mounting rack. A mounting frame is fixedly connected to the top end of the mounting plate frame, a printing box is fixedly connected to the mounting frame, and a dryer is fixedly connected to the top end of the mounting plate frame. The printing cylinder is clamped on the supporting plate, the supporting plate is controlled by the electric push rod to move front and back, so that the printing cylinder can be quickly pulled out of the printing box to be disassembled, long-time shutdown is not needed, and the continuous operation capacity of a production line is prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the field of color printing technology for packaging bags, and in particular to a color printing device for food packaging bags. Background Technology

[0002] In the current food packaging industry, color printing on packaging bags is a crucial step in enhancing the product's visual appeal. Traditional food packaging bag color printing equipment typically employs a fixed printing roller design. After prolonged use, this design faces challenges such as difficult disassembly, high maintenance costs, and low production efficiency due to roller surface wear, ink residue, or the need to change patterns. Replacing the printing roller requires significant downtime for tedious disassembly and installation, increasing labor costs and severely impacting the production line's continuous operation capability.

[0003] To address the aforementioned issues, we propose a color printing device for food packaging bags. This device allows for quick disassembly and replacement of the printing rollers without prolonged downtime, thus avoiding disruption to the continuous operation of the production line. Utility Model Content

[0004] To overcome the shortcomings of existing food packaging bag color printing devices that typically use a fixed printing roller design, which requires long downtime when replacing the printing roller and affects the continuous operation capability of the production line, this utility model provides a food packaging bag color printing device. This color printing device can quickly disassemble and replace the printing roller without long downtime, thus avoiding affecting the continuous operation capability of the production line.

[0005] The technical solution is as follows: A color printing device for food packaging bags includes a mounting frame, a mounting plate frame fixedly connected to the mounting frame, a placement roller rotatably connected to one side of the mounting frame, a transversely symmetrical guide roller rotatably connected to the mounting frame, a take-up roller rotatably connected to the other side of the mounting frame, a mounting bracket fixedly connected to the top of the mounting plate frame, a printing box fixedly connected to the mounting bracket, a dryer fixedly connected to the top of the mounting plate frame, a drive motor fixedly connected to the printing box, a printing roller clamped to the output shaft of the drive motor, and a rotating block rotatably connected to the printing roller. An electric push rod is fixedly connected to the mounting bracket, a support plate is fixedly connected to the telescopic end of the electric push rod, the printing roller is inserted into the center position of the support plate, and the support plate supports the printing roller. A circumferentially equidistant docking block is fixedly connected to the support plate, a locking block is slidably connected inside the docking block, a first elastic element is connected between the locking block and the adjacent docking block, an unlocking component for controlling the locking block to release the rotating block is provided on the support plate, and a disassembly component for removing the printing roller from the support plate is provided on the mounting frame.

[0006] Preferably, the outer end of the locking block has a rounded structure.

[0007] Preferably, the unlocking component includes a rotating ring rotatably connected to a support plate, with circumferentially equidistantly distributed pressing blocks fixedly connected to the rotating ring, and circumferentially equidistantly distributed first push rods slidably connected to the support plate. The first push rods press against adjacent locking blocks, and a second elastic element connects the first push rods to the support plate. Circumferentially equidistantly distributed push rods are fixedly connected to the rotating ring, and the push rods penetrate the support plate.

[0008] Preferably, the extrusion block is inclined and engages with the adjacent first push rod in an extrusion fit.

[0009] Preferably, the disassembly assembly includes a fixing frame, which is fixedly connected to the mounting frame. An extrusion plate is fixedly connected to the top of the fixing frame, and a second push rod is slidably connected to the center of the extrusion plate. A third elastic element is connected between the second push rod and the extrusion plate.

[0010] Preferably, the extrusion disc has circumferentially distributed inclined protrusions, and the extrusion disc and the push rod are in a pressing fit.

[0011] The beneficial effects of this utility model are: the printing roller is snapped onto the support plate, and the printing roller can be quickly pulled out of the printing box for disassembly by controlling the back and forth movement of the support plate through an electric push rod, without the need for long-term machine downtime, thus avoiding affecting the continuous operation capability of the production line. Attached Figure Description

[0012] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a second-view three-dimensional structural diagram of the present invention.

[0014] Figure 3 This is a three-dimensional structural diagram of the printing box, drive motor, and printing roller of this utility model.

[0015] Figure 4 This is a three-dimensional structural diagram of the drive motor, printing roller, and rotating block of this utility model.

[0016] Figure 5 This is a three-dimensional structural diagram of the support plate, docking block, and locking block of this utility model.

[0017] Figure 6 This is an exploded structural diagram of the support plate, rotating block, and other components of this utility model.

[0018] Figure 7 This is a three-dimensional structural diagram of the components of this utility model, including the first push rod, the rotating ring, and the extrusion block.

[0019] Figure 8This is a three-dimensional structural diagram of the components of this utility model, including the fixing frame, the extrusion plate, and the support plate.

[0020] Figure 9 This is a three-dimensional structural diagram of the components of this utility model, including the fixing frame, the extrusion plate, and the second push rod.

[0021] Explanation of reference numerals in the attached drawings: 1_Mounting frame, 2_Mounting plate frame, 3_Placement roller, 4_Guide roller, 5_Rewinding roller, 6_Mounting frame, 7_Printing box, 8_Dryer, 9_Drive motor, 10_Printing cylinder, 101_Rotating block, 11_Support plate, 12_Electric push rod, 13_Connecting block, 14_Positioning block, 15_First elastic element, 16_Rotating ring, 161_Extrusion block, 17_First push rod, 18_Second elastic element, 19_Push rod, 20_Fixed frame, 21_Extrusion plate, 22_Second push rod, 23_Third elastic element. Detailed Implementation

[0022] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0023] Example 1: A color printing device for food packaging bags, such as Figures 1-9 As shown, the system includes a mounting frame 1, a mounting plate frame 2, a placement roller 3, a guide roller 4, a take-up roller 5, a mounting bracket 6, a printing box 7, a dryer 8, a drive motor 9, a printing cylinder 10, a rotating block 101, a support plate 11, an electric push rod 12, a docking block 13, a locking block 14, a first elastic element 15, an unlocking assembly, and a disassembly assembly. The mounting plate frame 2 is fixedly connected to the front of the mounting frame 1. The placement roller 3 is rotatably connected to the lower left of the mounting frame 1. The guide rollers 4 are symmetrically connected to the upper part of the mounting frame 1. The take-up roller 5 is rotatably connected to the lower right of the mounting frame 1. The mounting bracket 6 is fixedly connected to the upper left side of the mounting plate frame 2. The printing box 7 is fixedly connected to the mounting bracket 6. The dryer 8 is fixedly connected to the upper right side of the mounting plate frame 2. The drive motor 9 is fixedly connected to the front of the printing box 7. A printing roller 10 is snapped onto the output shaft. A rotating block 101 is rotatably connected to the rear of the printing roller 10. An electric push rod 12 is fixedly connected to the mounting frame 6. A support plate 11 is fixedly connected to the telescopic end of the electric push rod 12. The rear end of the printing roller 10 is inserted into the center of the support plate 11. The support plate 11 supports the rear end of the printing roller 10. Three circumferentially equidistant docking blocks 13 are fixedly connected to the front side of the support plate 11. A locking block 14 is slidably connected inside the docking block 13. The outer end of the locking block 14 has an arc structure on the front side. A first elastic element 15 is connected between the locking block 14 and the adjacent docking block 13. The support plate 11 is provided with an unlocking component for controlling the locking block 14 to release the rotating block 101. The mounting frame 1 is provided with a disassembly component for removing the printing roller 10 from the support plate 11.

[0024] When using this device, the operator places the master roll of the food packaging bag to be printed on the placement roller 3, then pulls out one end of the food packaging bag, passes it around the left guide roller 4, then through the printing box 7, then around the right guide roller 4, and finally rolls it up on the take-up roller 5. As the food packaging bag moves, the drive motor 9 rotates the printing roller 10 to print the food packaging bag. The dryer 8 dries the printed food packaging bag. When the printing roller 10 needs to be replaced, the operator extends the electric push rod 12 to move the support plate 11 towards... The support plate 11 moves backward, causing the printing roller 10 to move backward and separate from the drive motor 9. Then, the locking block 14 is controlled to slide inward to release the rotating block 101 by the unlocking component. The disassembly component can then control the printing roller 10 to separate from the support plate 11. Then, the operator installs the printing roller 10 that needs to be replaced on the support plate 11. The electric push rod 12 is shortened to drive the support plate 11 to move forward, thereby driving the printing roller 10 to move forward and extend into the printing box 7 to connect with the drive motor 9. In this way, the printing roller 10 can be replaced quickly.

[0025] Example 2: Based on Example 1, such as Figure 7 As shown, the unlocking assembly includes a rotating ring 16, a pressing block 161, a first push rod 17, a second elastic element 18, and a push rod 19. The rotating ring 16 is rotatably connected to the front side of the support plate 11. Three pressing blocks 161 are fixedly connected to the inner side of the rotating ring 16. Three first push rods 17 are slidably connected to the front side of the support plate 11. The pressing blocks 161 are inclined and press against the adjacent first push rods 17. The first push rods 17 press against the adjacent locking blocks 14. The second elastic element 18 connects the first push rods 17 and the support plate 11. Three push rods 19 are fixedly connected to the rear side of the rotating ring 16 and extend out of the rear side of the support plate 11.

[0026] like Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the disassembly assembly includes a fixed frame 20, an extrusion plate 21, a second push rod 22, and a third elastic element 23. The fixed frame 20 is fixedly connected to the upper middle part of the rear side of the mounting frame 1. The extrusion plate 21 is fixedly connected to the upper side of the fixed frame 20. The front side of the extrusion plate 21 is provided with three circumferentially distributed inclined protrusions. The extrusion plate 21 is in a pressing fit with the push rod 19. The second push rod 22 is slidably connected to the center position of the extrusion plate 21. The third elastic element 23 is connected between the second push rod 22 and the extrusion plate 21.

[0027] When the printing roller 10 needs to be disassembled, the electric push rod 12 extends, causing the support plate 11 to move backward. The support plate 11 moves backward, causing the printing roller 10 and the entire unlocking assembly to move backward. When the printing roller 10 moves backward and contacts the second push rod 22, the second push rod 22 is squeezed and slides backward. The third elastic element 23 deforms. When the push rod 19 moves backward and contacts the protrusion on the extrusion plate 21, the push rod 19 is squeezed by the extrusion plate 21 and rotates, thereby driving the rotating ring 16 to rotate. The rotating ring 16 rotates, causing the extrusion block 161 to rotate. The extrusion block 161 rotates and squeezes the first push rod 17 to slide inward. The second elastic element 18 deforms. The first push rod 17 slides inward, pushing the locking block 14 to slide inward. The first elastic element 15 deforms. After the locking block 14 slides inward, it no longer locks the rotating block 101. At this time, under the action of the third elastic element 23 resetting, the second push rod 22 slides forward, thereby removing the printing roller 10. The printing roller 10 is pushed out of the support plate 11 for disassembly. After the printing roller 10 is disassembled, the operator controls the electric push rod 12 to shorten a short distance, thereby controlling the push rod 19 to separate from the extrusion plate 21. At this time, under the action of the second elastic element 18 resetting, the first push rod 17 slides outward to reset. Under the action of the first elastic element 15 resetting, the locking block 14 slides outward to reset. When the operator inserts the replacement printing roller 10 into the support plate 11, the rotating block 101 also moves backward, so that the docking block 13 is inserted into the rotating block 101. While the rotating block 101 moves backward, it will squeeze the locking block 14 to slide inward. When the rotating block 101 moves backward to disengage from the locking block 14, the locking block 14 slides upward to lock the rotating block 101, thereby fixing the printing roller 10 on the support plate 11. Then, the operator controls the electric push rod 12 to continue to shorten, thereby controlling the printing roller 10 to dock with the drive motor 9.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A food packaging bag color printing device, comprising a mounting frame (1), a mounting plate frame (2) fixedly connected to the mounting frame (1), a placing roller (3) rotatably connected to one side of the mounting frame (1), a transversely symmetrical guide roller (4) rotatably connected to the mounting frame (1), a winding roller (5) rotatably connected to the other side of the mounting frame (1), a mounting frame (6) fixedly connected to the top of the mounting plate frame (2), a printing box (7) fixedly connected to the mounting frame (6), a drying machine (8) fixedly connected to the top of the mounting plate frame (2), a driving motor (9) fixedly connected to the printing box (7), a printing roller (10) clamped on the output shaft of the driving motor (9), characterized in that: The invention also comprises a rotating block (101), the rotating block (101) is rotatably connected to the printing roller (10), the mounting frame (6) is fixedly connected to an electric push rod (12), the telescopic end of the electric push rod (12) is fixedly connected to a support plate (11), the printing roller (10) is inserted into the center position of the support plate (11), and the printing roller (10) is supported by the support plate (11), a docking block (13) with equal circumferential distances is fixedly connected to the support plate (11), a positioning block (14) is slidably connected inside the docking block (13), a first elastic member (15) is connected between the positioning block (14) and the adjacent docking block (13), an unlocking component for controlling the positioning block (14) to release the rotating block (101) is provided on the support plate (11), and a disassembly component for disassembling the printing roller (10) from the support plate (11) is provided on the mounting frame (1).

2. A food packaging bag color printing device according to claim 1, characterized in that: The outer end of the positioning block (14) is an arc structure.

3. A food packaging bag color printing device according to claim 2, characterized in that: The unlocking assembly comprises a rotating ring (16), the rotating ring (16) is rotatably connected to the support plate (11), the rotating ring (16) is fixedly connected to extrusion blocks (161) which are equidistantly distributed around the circumference, the support plate (11) is slidably connected to a first push rod (17) which is equidistantly distributed around the circumference, the first push rod (17) is extruded and matched with an adjacent locking block (14), a second elastic member (18) is connected between the first push rod (17) and the support plate (11), and the rotating ring (16) is fixedly connected to a push rod (19) which is equidistantly distributed around the circumference, and the push rod (19) passes through the support plate (11).

4. A food packaging bag color printing device according to claim 3, characterized in that: The extrusion block (161) is arranged to be inclined, and the extrusion block (161) is extruded and matched with the adjacent first push rod (17).

5. A food packaging bag color printing device according to claim 4, characterized in that: The disassembly assembly comprises a fixing frame (20), the fixing frame (20) is fixedly connected to the mounting frame (1), a pressing plate (21) is fixedly connected to the top of the fixing frame (20), a second push rod (22) is slidably connected to the center of the pressing plate (21), and a third elastic member (23) is connected between the second push rod (22) and the pressing plate (21).

6. A food packaging bag color printing device according to claim 5, characterized in that: The extrusion disk (21) is provided with inclined protrusions which are equidistantly distributed around the circumference, and the extrusion disk (21) is extrusion-matched with the push rod (19).

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