Packaging bag corona machine with corona effect detection function

By first eliminating static electricity and then removing dust in the corona treatment machine for packaging bags, the problem of static electricity on the surface of packaging bags affecting the detection accuracy is solved, and high-precision corona detection is achieved.

CN224276193UActive Publication Date: 2026-05-26ZHUHAI INSPIRATION PACKAGING MATERIALS CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI INSPIRATION PACKAGING MATERIALS CO LTD
Filing Date
2025-06-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing corona treatment machine for packaging bags does not eliminate static electricity before dust removal, causing the packaging bags to re-adhere to dust, which affects the accuracy of subsequent testing.

Method used

First, static electricity on the surface of the packaging bag is eliminated by an electrostatic eliminator roller, and then dust is removed by a cleaning mechanism to ensure detection accuracy.

Benefits of technology

By eliminating static electricity before dust removal, the structure avoids dust re-adsorption and ensures the accuracy of corona detection.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224276193U_ABST
    Figure CN224276193U_ABST
Patent Text Reader

Abstract

The utility model relates to a packaging bag corona machine with a corona effect detection function, which belongs to the technical field of corona machines and comprises a rack and a machine body fixedly connected to one end of the top of the rack. The top of the machine frame is rotationally connected with a static electricity eliminating roller, the top of the machine frame is fixedly connected with a connecting plate, a sweeping mechanism is installed in the connecting plate, the static electricity eliminating roller is located between the connecting plate and the cooling box, and the top of the machine frame is rotationally connected with a guide roller. Through the structural arrangement of firstly eliminating static electricity and then removing dust, static electricity attached to the packaging bag after corona is eliminated, and the situation that the packaging bag adsorbs dust and other impurities again due to static electricity existing on the outer surface of the packaging bag in the subsequent dust removal process is avoided; and dust is removed after the static electricity is eliminated, so that impurities such as dust are prevented from being adsorbed on the packaging bag again, and the precision of subsequent corona detection is ensured.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of corona machine technology, specifically relating to a corona machine for packaging bags with corona effect detection. Background Technology

[0002] A corona treatment machine is a surface pretreatment device for silicone rubber, plastics, and other materials, academically known as dielectric barrier discharge. It is mainly used for surface treatment of plastic film or sheet products. Before ink printing, lamination, blown film, coating, bonding, material modification, grafting, polymerization, coating, casting, and pasting processes on the above materials, corona impact treatment must be performed to give the product surface stronger adhesion (i.e., a higher dyne coefficient) and prevent phenomena such as printing color bleeding, weak lamination and bonding, and uneven coating during the production process, which affect product quality.

[0003] A search revealed a Chinese utility model patent with patent number CN220052889U, which discloses a corona discharge machine for packaging bags with corona discharge effect detection. The machine includes a frame, a corona discharge device fixedly mounted on top of the frame by bolts, and a detection device on one side of the corona discharge device, which is fixedly connected to the frame. A cleaning component is also provided between the corona discharge device and the detection device, and is fixedly connected to the frame. This achieves cooling, dust removal, and static electricity elimination of the corona-discharged film packaging bags, preventing the adsorption of dust and impurities on the film packaging bags, which would affect subsequent corona discharge effect detection and winding.

[0004] However, the aforementioned patent involves dust removal before static electricity elimination. Since dust removal is performed first without static electricity removal, static electricity will remain on the packaging bag. This causes the packaging bag to reabsorb static electricity after dust removal, resulting in dust and other impurities still adhering to the outer surface of the packaging bag, affecting the accuracy of subsequent testing. Based on this, a packaging bag corona machine with corona effect detection is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a packaging bag corona machine with a simple structure and reasonable design that can detect corona effects in order to solve the above problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A corona discharge tester for packaging bags includes a frame and a body fixedly connected to the top of the frame. A cooling box is fixedly connected to the top of the frame, and an electrostatic eliminator roller is rotatably connected to the top of the frame. A connecting plate is fixedly connected to the top of the frame, and a cleaning mechanism is installed inside the connecting plate. The electrostatic eliminator roller is located between the connecting plate and the cooling box. A guide roller is rotatably connected to the top of the frame, and a fixing plate is fixedly connected to the top of the frame. An upper clamping roller and a lower clamping roller are rotatably connected inside the fixing plate, and a detection mechanism is fixedly connected to the fixing plate at the position between the upper and lower clamping rollers.

[0008] As a further optimization of this utility model, the cooling box is located between the machine body and the static elimination roller, the guide roller is located between the connecting plate and the fixing plate, and the guide roller is located on the side of the connecting plate away from the static elimination roller.

[0009] As a further optimization of this utility model, the detection mechanism includes a back plate fixedly connected inside a fixed plate, a mounting plate fixedly connected inside the fixed plate, and a detection camera fixedly connected to the side of the mounting plate near the back plate, with the shooting end of the detection camera facing the back plate.

[0010] As a further optimization of this utility model, the top of the cooling box is fixedly connected to an air injection pipe, and the bottom of the cooling box is provided with an air blowing hole.

[0011] As a further optimization of this utility model, the cleaning mechanism includes a servo motor fixedly connected to a connecting plate via a motor mount. A first screw is fixedly connected to the output end of the servo motor, and a second screw is rotatably connected inside the connecting plate. The first and second screws are connected via a transmission assembly. An upper cleaning plate is threaded through the first screw, and a lower cleaning plate is threaded through the second screw. Cleaning holes are provided on opposite sides of both the upper and lower cleaning plates. Brush bristles are fixedly connected to opposite sides of both the upper and lower cleaning plates. A limiting plate is fixedly connected inside the connecting plate, and both the upper and lower cleaning plates are slidably connected to the limiting plate. An upper air inlet pipe is fixedly connected to the top of the upper cleaning plate, and a lower air inlet pipe is fixedly connected to the bottom of the lower cleaning plate.

[0012] As a further optimization of this utility model, the transmission assembly includes a first synchronous pulley fixedly connected to the end of the first screw, and a second synchronous pulley fixedly connected to the end of the second screw. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt.

[0013] The beneficial effects of this utility model are as follows: By eliminating static electricity before dust removal, this utility model achieves the elimination of static electricity adhering to the packaging bag after corona treatment, thus avoiding the re-adsorption of dust and other impurities on the outer surface of the packaging bag during subsequent dust removal. The elimination of static electricity before dust removal prevents dust and other impurities from re-adsorbing onto the packaging bag, ensuring the accuracy of subsequent corona detection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the frontal cross-section of this utility model;

[0016] Figure 3 This is the utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This is the utility model Figure 2 Enlarged structural diagram at point B;

[0018] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the back of this utility model;

[0019] Figure 6 This is a three-dimensional partial cross-sectional view of the structure of this utility model from below.

[0020] In the diagram: 1. Frame; 2. Body; 3. Cooling box; 4. Air injection pipe; 5. Air blowing hole; 6. Static elimination roller; 7. Connecting plate; 8. Guide roller; 9. Fixing plate; 10. Upper clamping roller; 11. Lower clamping roller; 12. Back plate; 13. Mounting plate; 14. Detection camera; 15. Cleaning mechanism; 1501. Servo motor; 1502. First screw; 1503. First synchronous pulley; 1504. Synchronous belt; 1505. Second synchronous pulley; 1506. Second screw; 1507. Upper cleaning plate; 1508. Lower cleaning plate; 1509. Cleaning hole; 1510. Brush bristles; 16. Limiting plate; 17. Upper air inlet pipe; 18. Lower air inlet pipe. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example: Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, a corona discharge machine for packaging bags with corona effect detection includes a frame 1 and a body 2 fixedly connected to the top of the frame 1. A cooling box 3 is fixedly connected to the top of the frame 1, and an air injection pipe 4 is fixedly connected to the top of the cooling box 3. The air injection pipe 4 is fixedly connected to an air pump (the air pump is prior art and is not shown in the figure, so it will not be described in detail). An air blowing hole 5 is opened at the bottom of the cooling box 3. An electrostatic eliminator roller 6 is rotatably connected to the top of the frame 1. A grounding device is installed at the end of the electrostatic eliminator roller 6 to guide static electricity and prevent static electricity accumulation (the grounding device is prior art and is not shown in the figure, so it will not be described in detail). The cooling box 3 is located between the body 2 and the electrostatic eliminator roller 6. A connecting plate 7 is fixedly connected to the top of the frame 1. A cleaning mechanism 15 is installed in the connecting plate 7. The electrostatic eliminator roller 6 is located between the connecting plate 7 and the cooling box 3. A guide roller 8 is rotatably connected to the top of the frame 1. The guide roller 8 is located between the connecting plate 7 and the cooling box 3. On the side of plate 7 away from the static elimination roller 6, a fixed plate 9 is fixedly connected to the top of the frame 1. A guide roller 8 is located between the connecting plate 7 and the fixed plate 9. An upper clamping roller 10 and a lower clamping roller 11 are rotatably connected within the fixed plate 9. A detection mechanism is fixedly connected to the portion of the fixed plate 9 between the upper clamping roller 10 and the lower clamping roller 11. The detection mechanism includes a back plate 12 fixedly connected within the fixed plate 9. A mounting plate 13 is fixedly connected within the fixed plate 9. A detection camera 14 is fixedly connected to the side of the mounting plate 13 closest to the back plate 12. The detection camera 14 is electrically connected to a subsequent processor (the processor is prior art, not shown in the figure, and will not be described in detail). The shooting end of the detection camera 14 is positioned directly opposite the back plate 12. The back plate 12 is positioned to prevent the image captured by the detection camera 14 from being too cluttered, ensuring that the detection camera 14 can clearly capture the packaging bag, thereby ensuring the quality of subsequent processing. It should be noted that... Figure 1 , Figure 2 and Figure 5 In this context, 'a' represents the packaging bag.

[0023] In use, the packaging bag is first passed through the machine body 2, then through the cooling box 3, and then bonded to the static elimination roller 6. After bonding, it passes through the cleaning mechanism 15 and then bonded to the guide roller 8. Then it passes between the two upper clamping rollers 10 and finally between the two lower clamping rollers 11. It is then connected to the winding equipment to start the machine body 2 (the winding equipment is existing technology and is not shown in the figure, so it will not be described in detail). At the same time, the winding equipment is started. The machine body 2 performs corona treatment on the packaging bag. After corona treatment, the packaging bag is cooled by the cold air blown out by the air blowing hole 5 at the bottom of the cooling box 3. After cooling, it passes through the static elimination roller 6 to eliminate the static electricity attached to its outer surface. Then, the detection camera 14 takes a picture of the packaging bag and sends the picture to the processor. The processor analyzes the picture data to determine the quality of corona treatment of the packaging bag.

[0024] By eliminating static electricity before dust removal, the static electricity adhering to the packaging bag after corona treatment is eliminated first. This avoids the packaging bag re-adsorbing dust and other impurities due to static electricity on the outer surface of the bag during subsequent dust removal. Eliminating static electricity before dust removal prevents dust and other impurities from re-adsorbing onto the packaging bag, thus ensuring the accuracy of subsequent corona detection.

[0025] like Figure 3 , Figure 5 and Figure 6 As shown, the cleaning mechanism 15 includes a servo motor 1501 fixedly connected to the connecting plate 7 via a motor mount. A first screw 1502 is fixedly connected to the output end of the servo motor 1501. A second screw 1506 is rotatably connected within the connecting plate 7. The first screw 1502 and the second screw 1506 are connected via a transmission assembly. The transmission assembly includes a first synchronous pulley 1503 fixedly connected to the end of the first screw 1502, and a second synchronous pulley 1505 fixedly connected to the end of the second screw 1506. The first synchronous pulley 1503 and the second synchronous pulley 1505 are connected via a synchronous belt 1504. An upper cleaning plate 1507 is threaded through the first screw 1502. The top of 1507 is fixedly connected to an upper air inlet pipe 17. A lower cleaning plate 1508 is threadedly connected through the second screw 1506. The bottom of the lower cleaning plate 1508 is fixedly connected to a lower air inlet pipe 18. The air inlet ends of both the upper air inlet pipe 17 and the lower air inlet pipe 18 are fixedly connected to an air pump (the air pump is existing technology and is not shown in the figure, so it will not be described in detail). Cleaning holes 1509 are opened on opposite sides of the upper cleaning plate 1507 and the lower cleaning plate 1508. Brush bristles 1510 are fixedly connected on opposite sides of the upper cleaning plate 1507 and the lower cleaning plate 1508. A limiting plate 16 is fixedly connected inside the connecting plate 7. The upper cleaning plate 1507 and the lower cleaning plate 1508 are slidably connected to the limiting plate 16.

[0026] In use, when the machine body 2 is started, the servo motor 1501 is activated, causing the servo motor 1501 to drive the first screw 1502 to rotate. This, in turn, causes the first screw 1502 to drive the second screw 1506 to rotate via the first synchronous pulley 1503, the synchronous belt 1504, and the second synchronous pulley 1505. The rotation of the first screw 1502 and the second screw 1506 will respectively cause the upper cleaning plate 1507 and the lower cleaning plate 1508 to slide back and forth along the outer surface of the packaging bag under the limiting action of the limiting plate 16. Furthermore, the upper cleaning plate 1507 and the lower cleaning plate 1508... During the forward and backward sliding process of 08, the upper air inlet pipe 17 and the lower air inlet pipe 18 inject clean gas into the upper cleaning plate 1507 and the lower cleaning plate 1508, respectively. The clean gas will be blown onto the upper and lower surfaces of the packaging bag through the cleaning hole 1509. At the same time, the bristles 1510 will clean the upper and lower surfaces of the packaging bag, remove dust and other impurities attached to the outer surface of the packaging bag, ensure the cleanliness of the packaging bag, and prevent dust and other impurities attached to the outer surface of the packaging bag from affecting the clarity of the image of the packaging bag taken by the subsequent detection camera 14, thereby ensuring the accuracy of the corona detection.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A corona detector for packaging bags, comprising a frame (1) and a body (2) fixedly connected to one top end of the frame (1), characterized in that: A cooling box (3) is fixedly connected to the top of the frame (1). An electrostatic eliminator roller (6) is rotatably connected to the top of the frame (1). A connecting plate (7) is fixedly connected to the top of the frame (1). A cleaning mechanism (15) is installed inside the connecting plate (7). The electrostatic eliminator roller (6) is located between the connecting plate (7) and the cooling box (3). A guide roller (8) is rotatably connected to the top of the frame (1). A fixing plate (9) is fixedly connected to the top of the frame (1). An upper clamping roller (10) and a lower clamping roller (11) are rotatably connected inside the fixing plate (9). A detection mechanism is fixedly connected to the part of the fixing plate (9) located between the upper clamping roller (10) and the lower clamping roller (11).

2. The corona discharge machine for packaging bags with corona effect detection according to claim 1, characterized in that: The cooling box (3) is located between the body (2) and the static elimination roller (6), the guide roller (8) is located between the connecting plate (7) and the fixing plate (9), and the guide roller (8) is located on the side of the connecting plate (7) away from the static elimination roller (6).

3. The corona discharge tester for packaging bags with corona effect detection according to claim 1, characterized in that: The detection mechanism includes a back plate (12) fixedly connected inside a fixed plate (9), a mounting plate (13) fixedly connected inside the fixed plate (9), and a detection camera (14) fixedly connected to the side of the mounting plate (13) near the back plate (12), with the shooting end of the detection camera (14) facing the back plate (12).

4. The corona discharge tester for packaging bags with corona effect detection according to claim 1, characterized in that: The top of the cooling box (3) is fixedly connected to an air injection pipe (4), and the bottom of the cooling box (3) is provided with an air blowing hole (5).

5. A corona discharge tester for packaging bags with corona effect detection according to claim 1, characterized in that: The cleaning mechanism (15) includes a servo motor (1501) fixedly connected to the connecting plate (7) via a motor mount. A first screw (1502) is fixedly connected to the output end of the servo motor (1501). A second screw (1506) is rotatably connected within the connecting plate (7). The first screw (1502) and the second screw (1506) are connected via a transmission assembly. An upper cleaning plate (1507) is threaded through the first screw (1502), and a lower cleaning plate (1508) is threaded through the second screw (1506). Cleaning holes (1509) are provided on opposite sides of the upper cleaning plate (1507) and the lower cleaning plate (1508). Brush bristles (1510) are fixedly connected to opposite sides of the upper cleaning plate (1507) and the lower cleaning plate (1508). A limiting plate (16) is fixedly connected inside the connecting plate (7). The upper cleaning plate (1507) and the lower cleaning plate (1508) are slidably connected to the limiting plate (16). An upper air inlet pipe (17) is fixedly connected to the top of the upper cleaning plate (1507), and a lower air inlet pipe (18) is fixedly connected to the bottom of the lower cleaning plate (1508).

6. A corona discharge tester for packaging bags with corona effect detection according to claim 5, characterized in that: The transmission assembly includes a first synchronous pulley (1503) fixedly connected to the end of the first screw (1502), and a second synchronous pulley (1505) fixedly connected to the end of the second screw (1506). The first synchronous pulley (1503) and the second synchronous pulley (1505) are connected by a synchronous belt (1504).