Digital printing device for producing packaging labels

By introducing a tension roller lifting assembly and an automated loading and unloading system into the digital printing equipment, the problem of insufficient tension control was solved, the stability and production efficiency of label printing were improved, and production costs were reduced.

CN223892116UActive Publication Date: 2026-02-10HENAN DEZHIXING SHOES TECH CO LTD
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Patent Information

Application Number
CN202520638209.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-02-10
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

Existing digital printing equipment used for producing packaging labels cannot effectively control tension, causing labels to easily shift or wrinkle during processing, affecting work efficiency and printing quality, and increasing production costs.

Method used

The system employs a tension roller lifting assembly combined with a pressure sensor and a PLC controller. The pressure on the outer wall of the tension roller is sensed by the sensor plate, and the tension is automatically adjusted. At the same time, the drive motor is used to realize the automated loading and unloading of label paper and the drying of ink after printing.

Benefits of technology

It enables automatic adjustment of label paper force, avoiding offset and wrinkles, improving work efficiency and printing quality, reducing the need for manual intervention, and shortening the production cycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a digital printing device for producing packaging labels, and relates to the technical field of printing devices, the digital printing device for producing the packaging labels comprises a workbench, two sides and two ends of the top of the workbench are respectively provided with a first vertical plate, a feeding roller is arranged between the two first vertical plates on the left side, and a second vertical plate is arranged between the two first vertical plates on the right side. A first driving motor is installed at one end of the feeding roller, a material collecting roller is installed between the two first vertical plates on the right side, a second driving motor is installed at one end of the material collecting roller, and a set of second vertical plates are installed between the two sets of first vertical plates; according to the scheme, the problems that in the using process of an existing digital printing device for producing the packaging labels, tension cannot be controlled, the labels are likely to deviate or wrinkle in the machining process, workers need to conduct treatment, the working efficiency is affected, the printing quality of the labels is affected, and the production cost is increased are solved.
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Description

Technical Field

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

[0002] With the increasing demand for personalization, small-batch production, and high precision in the packaging and labeling industry, traditional printing technologies are struggling to meet market needs. Digital printing technology, with its advantages of high efficiency, flexibility, and environmental friendliness, is gradually becoming the mainstream choice for packaging and label production.

[0003] For example, the announcement number CN215243688U is titled "Digital Printing Device for Producing Packaging Labels". The device includes a mounting platform; a printing plate, which is set on the mounting platform; a mounting frame, which is fixedly connected to the upper end of the mounting platform; and a cam mechanism, which is set on the mounting frame. The cam mechanism achieves printing by moving the printing plate. The output end of the second drive motor rotates to achieve cam rotation. The cam rotation can push the push plate to move, and the push plate movement achieves the movement of the printing plate.

[0004] The aforementioned device cannot control the tension during use, which can easily cause labels to shift or wrinkle during processing, requiring manual intervention. This not only affects work efficiency but also the printing quality of the labels, increasing production costs. Therefore, we propose a digital printing device for producing packaging labels to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a digital printing device for producing packaging labels, in order to solve the problems mentioned in the background art, that existing digital printing devices for producing packaging labels cannot control tension during use, and that labels are prone to shifting or wrinkling during processing, requiring manual handling, which affects work efficiency, printing quality, and increases production costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a digital printing device for producing packaging labels, comprising a workbench, with first upright plates installed on both sides and ends of the top of the workbench, wherein a feeding roller is installed between the two first upright plates on the left side, and a first drive motor is installed at one end of the feeding roller; a receiving roller is installed between the two first upright plates on the right side, and a second drive motor is installed at one end of the receiving roller; a set of second upright plates is installed between the two sets of first upright plates, and the set of second upright plates is located at both ends of the top of the workbench; a limit roller is installed on the upper part between the two second upright plates; two sets of third upright plates are installed on the right side of the second upright plates, wherein a support roller is installed on the upper part between the two third upright plates on the same side; two columns are installed between the second upright plates and the third upright plates; a tensioning roller is installed between the two columns; and lifting components are installed at both ends of the tensioning roller.

[0007] Preferably, the lifting assembly includes a vertical groove located inside the column, a threaded rod installed inside the vertical groove, a third drive motor installed on the top of the threaded rod, a nut seat threadedly connected to the outer wall of the threaded rod, and a tension roller installed between the two nut seats.

[0008] Preferably, both the limiting roller and the support roller are fitted with rubber sleeves on their outer walls.

[0009] Preferably, a sensing plate is installed on the outer wall of the tension roller, a pressure sensor is installed at the front end of the column, a PLC controller is installed at the front end of the second vertical plate, the output end of the sensing plate is electrically connected to the input end of the pressure sensor, the output end of the pressure sensor is electrically connected to the input end of the PLC controller, and the output end of the PLC controller is electrically connected to the input end of the third drive motor.

[0010] Preferably, an inverted U-shaped support frame is installed on the top of the two sets of third upright plates, a cylinder is installed on the top of the inverted U-shaped support frame, and a printing plate is installed on the bottom of the cylinder through the upper plate of the inverted U-shaped support frame.

[0011] Preferably, springs are installed at both ends of the top of the inverted U-shaped support frame, the bottom of the springs is fixedly connected to the printing plate, a fixing sleeve is installed inside the springs, a movable column is movably installed inside the fixing sleeve, and the bottom of the movable column is fixedly connected to the printing plate.

[0012] Preferably, an L-shaped support plate is installed at the top between the first upright plate on the right and the third upright plate on the right. The top of the L-shaped support plate is provided with a through hole, and a fixing frame is installed inside the through hole. A fourth drive motor is installed at the top of the fixing frame, and a fan blade is installed at the bottom of the fixing frame. Baffles are installed at both ends of the L-shaped support plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model uses an induction plate to transmit the pressure on the outer wall of the tension roller to a pressure sensor. If the pressure is less than a fixed value, it means that the packaging label paper is too loose. The PLC controller makes the third drive motor rotate forward, which drives the threaded rod to rotate forward and lowers the nut seat, thereby driving the tension roller to lower until the measured pressure reaches the fixed value. Conversely, if the pressure is greater than the fixed value, it means that the packaging label paper is too tight. The PLC controller makes the third drive motor rotate in reverse, which drives the threaded rod to rotate in reverse and raises the nut seat, thereby driving the tension roller to rise until the measured pressure drops to the fixed value. This realizes the tension adjustment of the packaging label paper and solves the problem that the existing digital printing device used for producing packaging labels cannot control the tension during use, and the label is prone to shifting or wrinkling during processing. It also requires manual handling, which affects work efficiency and the printing quality of the label, and increases production costs.

[0015] (2) The first drive motor drives the feeding roller to rotate, which can release the unprinted packaging label paper. The other end of the packaging label paper passes through the top of the limiting roller, the bottom of the tensioning roller and the top of the support roller in sequence, and is fixedly connected to the receiving roller. The second drive motor drives the receiving roller to rotate in the same direction, which can rewind the packaging label paper, thus realizing the automated loading and unloading of packaging label paper.

[0016] (3) The fan blades can be rotated by the fourth drive motor to dry the printed packaging label paper, so that the ink on the surface of the packaging label paper is completely dried. The dried label can be immediately rolled up and processed, shortening the production cycle and improving the overall efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front cross-sectional view of the present invention.

[0019] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of the present invention. Figure 1 ;

[0020] Figure 4This is a schematic diagram of the right-side cross-sectional structure of the present invention. Figure 2 ;

[0021] In the diagram: 1. Workbench; 2. First vertical plate; 3. Feeding roller; 4. First drive motor; 5. Receiving roller; 6. Second drive motor; 7. Second vertical plate; 8. Limiting roller; 9. Third vertical plate; 10. Support roller; 11. Rubber sleeve; 12. Column; 13. Vertical groove; 14. Threaded rod; 15. Third drive motor; 16. Nut seat; 17. Tensioning roller; 18. Sensing plate; 19. Pressure sensor; 20. PLC controller; 21. Inverted U-shaped support frame; 22. Cylinder; 23. Printed plate; 24. Spring; 25. Fixed sleeve; 26. Movable column; 27. L-shaped support plate; 28. Through hole; 29. ​​Fixed frame; 30. Fourth drive motor; 31. Fan blade; 32. Baffle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a digital printing device for producing packaging labels, comprising a workbench 1, with first vertical plates 2 installed on both sides and ends of the top of the workbench 1. A feeding roller 3 is installed between the two first vertical plates 2 on the left side, with a first drive motor 4 installed at one end of the feeding roller 3. A receiving roller 5 is installed between the two first vertical plates 2 on the right side, with a second drive motor 6 installed at one end of the receiving roller 5, thus achieving automated loading and unloading of the device. A set of second vertical plates 7 is installed between the two sets of first vertical plates 2, located at both ends of the top of the workbench 1. A limit roller 8 is installed on the upper part between the two second vertical plates 7. Two sets of third vertical plates 9 are installed on the right side of the second vertical plates 7, with the two third vertical plates 9 on the same side... A support roller 10 is installed on the upper part between the two vertical plates 7 and 9. Two columns 12 are installed between the second vertical plate 7 and the third vertical plate 9. A tension roller 17 is installed between the two columns 12. The first drive motor 4 drives the feeding roller 3 to rotate, which can release the unprinted packaging label paper. The other end of the packaging label paper passes through the top of the limiting roller 8, the bottom of the tension roller 17 and the top of the support roller 10 in sequence, and is fixedly connected to the take-up roller 5. The second drive motor 6 drives the take-up roller 5 to rotate in the same direction, which can rewind the packaging label paper, realizing the automated loading and unloading of the packaging label paper. Lifting components are installed at both ends of the tension roller 17. The lifting components include vertical grooves 13, which are located inside the columns 12. Threaded rods 14 are installed inside the vertical grooves 13. A third drive motor 15 is mounted on the top of the first vertical plate 4. A nut seat 16 is threaded onto the outer wall of the threaded rod 14. A tension roller 17 is installed between the two nut seats 16. A sensing element 18 is mounted on the outer wall of the tension roller 17. A pressure sensor 19 is mounted on the front end of the column 12. A PLC controller 20 is mounted on the front end of the second vertical plate 7. The PLC controller 20 uses a Siemens S7-200. The output end of the sensing element 18 is electrically connected to the input end of the pressure sensor 19. The output end of the pressure sensor 19 is electrically connected to the input end of the PLC controller 20. The output end of the PLC controller 20 is electrically connected to the input end of the third drive motor 15. The pressure on the outer wall of the tension roller 17 can be transmitted to the pressure sensor 19 through the sensing element 18. To facilitate the judgment of the tension of the packaging label paper, if the pressure is less than a fixed value, it indicates that the packaging label paper is too loose. The PLC controller 20 causes the third drive motor 15 to rotate forward, driving the threaded rod 14 to rotate forward, causing the nut seat 16 to descend, thereby driving the tension roller 17 to descend until the measured pressure reaches the fixed value. Conversely, if the pressure is greater than the fixed value, it indicates that the packaging label paper is too tight. The PLC controller 20 causes the third drive motor 15 to rotate in reverse, driving the threaded rod 14 to rotate in reverse, causing the nut seat 16 to rise, thereby driving the tension roller 17 to rise until the measured pressure drops to the fixed value. This achieves the tension adjustment of the packaging label paper. The top of the two sets of third vertical plates 9 is equipped with an inverted U-shaped support frame 21, and the top of the inverted U-shaped support frame 21 is equipped with a cylinder 22.A printing plate 23 is mounted on the upper plate of an inverted U-shaped support frame 21 through the bottom of cylinder 22. Cylinder 22 lowers the printing plate 23 until it adheres to the surface of the packaging label paper, allowing printing. An L-shaped support plate 27 is mounted at the top between the first upright plate 2 and the third upright plate 9 on the right side. The top of the L-shaped support plate 27 has a through hole 28, inside which a fixing frame 29 is installed. A fourth drive motor 30 is mounted on the top of the fixing frame 29, and fan blades 31 are mounted at the bottom. Baffles 32 are mounted at both ends of the L-shaped support plate 27. Activating the fourth drive motor 30 rotates the fan blades 31, drying the printed packaging label paper and ensuring the ink on the surface is completely dry. The dried label can then be immediately wound and processed, shortening the production cycle and improving overall efficiency.

[0024] Please see Figure 2 Both the limiting roller 8 and the support roller 10 are equipped with rubber sleeves 11 on their outer walls. The rubber sleeves 11 can increase the friction between the paper and the limiting roller 8 and the support roller 10, improve the paper transport efficiency, and prevent the paper from shifting during transport, thus effectively improving the printing quality of the device.

[0025] Please see Figure 4 Springs 24 are installed at both ends of the top of the inverted U-shaped support frame 21. The bottom of the springs 24 is fixedly connected to the printing plate 23. A fixed sleeve 25 is installed inside the springs 24. A movable column 26 is movably installed inside the fixed sleeve 25. The bottom of the movable column 26 is fixedly connected to the printing plate 23. When printing on the surface of the packaging label paper through the printing plate 23, the springs 24 at both ends can prevent the printing plate 23 from shifting, thus affecting the printing quality. The combined action of the fixed sleeve 25 and the movable column 26 can keep the springs 24 in a vertical state, thereby improving the stability of the printing plate 23 and thus improving the printing quality of the device.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A digital printing apparatus for producing packaging labels, comprising a worktable (1), characterized in that: The workbench (1) has first vertical plates (2) installed on both sides and ends of its top. A feeding roller (3) is installed between the two first vertical plates (2) on the left side, and a first drive motor (4) is installed at one end of the feeding roller (3). A receiving roller (5) is installed between the two first vertical plates (2) on the right side, and a second drive motor (6) is installed at one end of the receiving roller (5). A set of second vertical plates (7) is installed between the two sets of first vertical plates (2), and the set of second vertical plates (7) is located on the... Limiting rollers (8) are installed on the upper part between the two second vertical plates (7) at both ends of the top of the workbench (1). Two sets of third vertical plates (9) are installed on the right side of the second vertical plate (7). Support rollers (10) are installed on the upper part between the two third vertical plates (9) on the same side. Two columns (12) are installed between the second vertical plate (7) and the third vertical plate (9). Tensioning rollers (17) are installed between the two columns (12). Lifting components are installed at both ends of the tensioning rollers (17).

2. The digital printing apparatus for producing packaging labels according to claim 1, characterized in that: The lifting assembly includes a vertical groove (13) located inside the column (12). A threaded rod (14) is installed inside the vertical groove (13). A third drive motor (15) is installed on the top of the threaded rod (14). A nut seat (16) is threadedly connected to the outer wall of the threaded rod (14). The tension roller (17) is installed between the two nut seats (16).

3. The digital printing apparatus for producing packaging labels according to claim 1, characterized in that: Both the limiting roller (8) and the support roller (10) are fitted with rubber sleeves (11) on their outer walls.

4. A digital printing apparatus for producing packaging labels according to claim 2, characterized in that: The outer wall of the tension roller (17) is equipped with a sensing plate (18), the front end of the column (12) is equipped with a pressure sensor (19), the front end of the second vertical plate (7) is equipped with a PLC controller (20), the output end of the sensing plate (18) is electrically connected to the input end of the pressure sensor (19), the output end of the pressure sensor (19) is electrically connected to the input end of the PLC controller (20), and the output end of the PLC controller (20) is electrically connected to the input end of the third drive motor (15).

5. A digital printing apparatus for producing packaging labels according to claim 1, characterized in that: The top of the two sets of third upright plates (9) is equipped with an inverted U-shaped support frame (21), the top of the inverted U-shaped support frame (21) is equipped with a cylinder (22), and the bottom of the cylinder (22) is installed through the upper plate of the inverted U-shaped support frame (21) with a printing plate (23).

6. A digital printing apparatus for producing packaging labels according to claim 5, characterized in that: Springs (24) are installed at both ends of the top of the inverted U-shaped support frame (21). The bottom of the springs (24) is fixedly connected to the printing plate (23). A fixing sleeve (25) is installed inside the springs (24). A movable column (26) is movably installed inside the fixing sleeve (25). The bottom of the movable column (26) is fixedly connected to the printing plate (23).

7. A digital printing apparatus for producing packaging labels according to claim 1, characterized in that: An L-shaped support plate (27) is installed at the top between the first upright plate (2) on the right and the third upright plate (9) on the right. The top of the L-shaped support plate (27) is provided with a through hole (28). A fixing frame (29) is installed inside the through hole (28). A fourth drive motor (30) is installed at the top of the fixing frame (29). A fan blade (31) is installed at the bottom of the fixing frame (29). Baffles (32) are installed at both ends of the L-shaped support plate (27).