On-line quality inspection device for a paper reel rewinder
By using visual inspection agencies and automated equipment to perform online inspection and cutting of paper rolls, the problem of low efficiency in manual inspection during paper roll production has been solved. This has enabled automated removal and cutting of defective products, improving production efficiency and saving labor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN TONGPRINT
- Filing Date
- 2025-05-08
- Publication Date
- 2026-06-16
AI Technical Summary
In the current paper roll production process, quality inspection mainly relies on manual visual observation, which results in high work intensity and low inspection efficiency, and cannot meet the needs of continuous production.
The system employs a vision inspection mechanism combined with a brush roller, cutter, and cylinder to automatically detect and cut defective paper rolls. The vision inspection mechanism performs quality checks on the paper rolls, the cylinder drives the moving strip to move down and fix the paper rolls, the cutter cuts off the defective areas, and the brush roller moves the defective paper rolls to the waste trough, thus achieving automatic removal of defective products.
It reduced the labor intensity of personnel, improved the efficiency of inspection, and enabled the automatic cutting and removal of defective products, thereby enhancing the labor-saving effect of production.
Smart Images

Figure CN224365982U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper roll production technology, and more specifically, to an online quality inspection device for paper roll rewinding machines. Background Technology
[0002] In the paper rewinding process, quality inspection is a key step to ensure that the finished paper rolls meet the requirements for strength, flatness, and dimensions.
[0003] The existing publicly available technology, application number CN201220440649.1, describes a rewinding machine with a detection device. Because a flash meter is installed at the detection station, the quality of the product can be better observed by the human eye, thereby improving work efficiency and reducing defective products.
[0004] Based on the aforementioned patents, it is not difficult to see that quality testing is required during the production of paper rolls. Traditional testing methods mostly rely on manual visual observation and manual removal, which is labor-intensive and slow, and cannot meet the needs of continuous production operations. Overall, the results are not ideal.
[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] To address the shortcomings of existing technologies, this utility model provides an online quality inspection device for paper rewinding machines, which has the advantages of cutting and removing defective products and saving labor, thereby solving the problems mentioned in the background technology.
[0008] (II) Technical Solution
[0009] To achieve the advantages of cutting and removing defective products and reducing operational effort, the specific technical solution adopted by this utility model is as follows:
[0010] An online quality inspection device for a paper rewinding machine includes a base and a vision inspection mechanism. Several sets of support columns are symmetrically installed around the top two sides of the base. Moving strips are slidably connected between each pair of support columns. A cutter is fixedly installed at the bottom of each moving strip. Fixed cylinders are symmetrically installed on the outer surface of each moving strip. A moving rod is slidably connected inside each fixed cylinder. A spring is installed at one end of each moving rod inside the fixed cylinder, and a pressure strip is installed at the other end. A rubber pad is installed on the surface of the pressure strip. A support frame is installed between the moving strips at the middle of one side of the top of the base. A fixed frame is slidably connected inside the support frame. An electric push rod is installed at the bottom of the fixed frame inside the support frame. A brush roller is rotatably connected to the bottom of the fixed frame, and one end of the brush roller is connected to a motor.
[0011] Furthermore, several sets of electric rollers are evenly installed at the top center of the base.
[0012] Furthermore, a top plate is fixedly installed at the top of the support column, and several sets of cylinders are symmetrically installed around the surface of the top plate. The output end of the cylinder is connected to a lifting column, and one end of the lifting column passes through one side of the top plate and is connected to the moving bar.
[0013] Furthermore, a waste trough is provided on one side of the support frame at the position of the base surface.
[0014] Furthermore, the pressure strip is level with the moving strip at its maximum compression.
[0015] Furthermore, a drive groove is provided at the center of the top of the base.
[0016] Furthermore, a visual inspection mechanism is installed at the middle position of the bottom surface of the top plate.
[0017] Furthermore, the brush roller is positioned directly above the electric roller.
[0018] (III) Beneficial Effects
[0019] Compared with the prior art, this utility model provides an online quality inspection device for paper rewinding machines, which has the following beneficial effects:
[0020] This invention employs a brush roller, a cutter, and a vision inspection mechanism. During operation, the vision inspection mechanism performs quality checks on the conveyed paper rolls. When surface defects are detected, the cylinder drives the moving strip downwards, causing the pressure strip on its surface to contact the paper roll and fix it in place. Then, the cutter cuts the defective area of the paper roll, preventing it from winding up and affecting the overall product quality. The cut paper roll then contacts the brush on its surface through the rotation of the brush roller, and the friction and tension cause the paper roll to move outwards, eventually falling into the waste trough for collection and subsequent processing. The entire process requires minimal human intervention, thus reducing labor intensity and improving the labor-saving effect of the device. It has the advantages of defective product cutting, defective product removal, and labor-saving operation. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the online quality inspection device for paper rewinding machines proposed in this utility model;
[0023] Figure 2 This is a structural schematic diagram of the movable rod and pressure strip of this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the brush roller of this utility model;
[0025] Figure 4 This is a structural schematic diagram of the fixing frame of this utility model.
[0026] In the picture:
[0027] 1. Base; 2. Drive slot; 3. Electric roller; 4. Support column; 5. Moving bar; 6. Moving rod; 7. Lifting column; 8. Cylinder; 9. Vision inspection mechanism; 10. Cutter; 11. Rubber pad; 12. Spring; 13. Fixed cylinder; 14. Pressure strip; 15. Fixed frame; 16. Electric push rod; 17. Support frame; 18. Waste trough; 19. Brush roller. Detailed Implementation
[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0029] According to an embodiment of the present invention, an online quality inspection device for a paper rewinding machine is provided.
[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, the online quality inspection device for a paper rewinding machine according to an embodiment of this utility model includes a base 1 and a vision inspection mechanism 9. Several sets of support columns 4 are symmetrically installed around the top two sides of the base 1. Moving strips 5 are slidably connected between each pair of support columns 4. A cutter 10 is fixedly installed at the bottom of each moving strip 5. Fixed cylinders 13 are symmetrically installed on the outer surface of each moving strip 5. Moving rods 6 are slidably connected inside each fixed cylinder 13. A spring 12 is installed at one end of each moving rod 6 inside the fixed cylinder 13, and a pressure strip 14 is installed at the other end of each moving rod 6. The surface of the pressure strip 14... A rubber pad 11 is installed on the base. A support frame 17 is installed between the moving strips 5 at the middle position on one side of the top of the base 1. A fixed frame 15 is slidably connected inside the support frame 17. An electric push rod 16 is installed at the bottom of the fixed frame 15 inside the support frame 17. A brush roller 19 is rotatably connected to the bottom of the fixed frame 15. One end of the brush roller 19 is connected to a motor. The connection between the motor and the brush roller 19 is to drive the brush roller 19, thereby pulling and removing the rolled paper. The brush roller 19 can be constructed by installing brushes on the surface of the roller, which will not be described in detail here.
[0031] In one embodiment, several sets of electric rollers 3 are evenly installed at the top center of the base 1. The electric rollers 3 are set to facilitate the conveying operation of the paper roll. At the same time, the electric rollers 3 can be replaced by any conveying structure, which will not be elaborated here. Moreover, the electric rollers 3 can also be composed of rollers and motors, and the motor drives the rollers to convey the paper roll.
[0032] In one embodiment, a top plate is fixedly installed at the top of the support column 4, and several sets of cylinders 8 are symmetrically installed around the surface of the top plate. The output end of the cylinder 8 is connected to a lifting column 7. One end of the lifting column 7 passes through one side of the top plate and is connected to the moving strip 5. The cylinders 8 are set to move the moving strip 5 so as to deal with defects in the paper roll in a timely manner.
[0033] In one embodiment, a waste trough 18 is provided on one side of the support frame 17 at the surface of the base 1. The waste trough 18 is provided to facilitate the collection of defective rolls of paper, thereby facilitating subsequent processing.
[0034] In one embodiment, the pressure strip 14 is level with the moving strip 5 at its maximum compression. The compression of the pressure strip 14 is set to ensure that the paper roll can be cut smoothly when the cutter 10 falls, and to avoid the pressure strip 14 being too high, which would prevent the cutter 10 from contacting the paper roll and thus affect the processing effect of defective paper rolls.
[0035] In one embodiment, a drive groove 2 is provided at the top center of the base 1. The drive groove 2 is provided to facilitate the installation and use of drive equipment such as electric roller 3, thereby realizing the conveying operation of the paper roll and facilitating subsequent rewinding processing.
[0036] In one embodiment, a vision inspection mechanism 9 is installed at the center of the bottom surface of the top plate. The industrial vision inspection mechanism 9 is a technology that achieves automated inspection by simulating human vision. Its core components include the collaborative work of hardware devices and software algorithms. The industrial vision inspection mechanism 9 mainly consists of the following six modules: 1. Illumination source, 2. Optical lens and industrial camera, 3. Image acquisition and processing equipment, 4. Vision processing software and algorithms, 5. Sensors and actuators, and 6. Communication and data management interface. Since the components and technologies used in the vision inspection mechanism 9 are all mature types, personnel can set them up themselves, and they will not be described in detail here.
[0037] In one embodiment, the brush roller 19 is positioned directly above the electric roller 3. The position of the brush roller 19 is designed so that it is directly above the roll of paper, and thus its projection makes contact with the roll of paper. This allows it to come into contact with the defective roll of paper during subsequent downward movement, thereby removing the defective paper. Since it is suspended when not in use, it will not affect the movement of the roll of paper. Furthermore, since it is positioned between the moving strips 5, it will not interfere with the movement of the moving strips 5. Working Principle: In actual use, the base 1 can be installed between the paper roll and the rewinder, so that the paper roll must pass through the base 1 to connect with the rewinder. The paper roll is then conveyed by the rotation of the electric roller 3. When the paper roll moves below the vision inspection mechanism 9, the CCD camera and its processing system inside the mechanism take pictures and analyze the surface of the paper roll to determine if it is defective. If no defects are found, the paper roll continues to be conveyed to the rewinder. If defects are found, the electric roller 3 stops, and the cylinder 8 moves, causing the lifting column 7 to move downwards, which in turn moves the bottom moving strip 5 downwards. Two sets of moving strips 5 are symmetrically arranged, allowing for simultaneous processing of both sides of the paper roll. As the moving strip 5 continues to move downwards, the pressure strip 14 on one side first contacts the surface of the paper roll, thereby squeezing and fixing the area outside the defective area to prevent further damage. As the paper moves, the moving strip 5 continues to move downwards, and the moving column on the surface of the pressure strip 14 enters the fixed cylinder 13. This causes the cutter 10 on the surface of the moving strip 5 to contact the roll of paper while remaining in its own position, thus cutting the roll. This separates the defective roll from the undefective roll. Then, the retraction of the electric push rod 16 drives the brush roller 19 to contact the defective roll. Driven by the motor on the surface of the brush roller 19, it rotates, and the friction between the brush and the roll moves the defective roll outwards, causing it to fall into the waste trough 18 for easier subsequent processing and reduced human intervention, thereby improving the device's labor-saving effect. After the defective roll is cut, all structures reset, and the electric roller 3 can then smoothly continue conveying the roll, facilitating subsequent rewinding. The device as a whole has the advantages of defective product cutting, defective product removal, and labor-saving operation.
[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An online quality inspection device for a paper rewinding machine, comprising a base (1) and a visual inspection mechanism (9), characterized in that, Several sets of support columns (4) are symmetrically installed on the top two sides of the base (1). A movable strip (5) is slidably connected between each pair of support columns (4). A cutter (10) is fixedly installed at the bottom of the movable strip (5). A fixed cylinder (13) is symmetrically installed on the outer surface of the movable strip (5). A movable rod (6) is slidably connected inside the fixed cylinder (13). A spring (12) is installed at one end of the movable rod (6) inside the fixed cylinder (13). The other end of the movable rod (6) A pressure strip (14) is installed at the position, and a rubber pad (11) is installed on the surface of the pressure strip (14). A support frame (17) is installed between the moving strips (5) at the middle position on one side of the top of the base (1). A fixed frame (15) is slidably connected inside the support frame (17). An electric push rod (16) is installed at the bottom of the fixed frame (15) inside the support frame (17). A brush roller (19) is rotatably connected at the bottom of the fixed frame (15). One end of the brush roller (19) is connected to a motor.
2. The online quality inspection device for paper rewinding machine according to claim 1, characterized in that, Several sets of electric rollers (3) are evenly installed at the top center of the base (1).
3. The online quality inspection device for a paper rewinding machine according to claim 1, characterized in that, A top plate is fixedly installed at the top of the support column (4), and several sets of cylinders (8) are symmetrically installed around the surface of the top plate. The output end of the cylinder (8) is connected to a lifting column (7), and one end of the lifting column (7) passes through one side of the top plate and is connected to the moving bar (5).
4. The online quality inspection device for a paper rewinding machine according to claim 1, characterized in that, The support frame (17) has a waste trough (18) on one side located on the surface of the base (1).
5. The online quality inspection device for a paper rewinding machine according to claim 1, characterized in that, When the pressure strip (14) is compressed to its maximum extent, it is level with the moving strip (5).
6. The online quality inspection device for a paper rewinding machine according to claim 1, characterized in that, The base (1) has a drive groove (2) at the top center.
7. The online quality inspection device for a paper rewinding machine according to claim 3, characterized in that, A visual inspection mechanism (9) is installed at the middle position of the bottom surface of the top plate.
8. The online quality inspection device for a paper rewinding machine according to claim 1, characterized in that, The brush roller (19) is located directly above the electric roller (3).
Citation Information
Patent Citations
CN202754596U