Paper defect online detection device

Abstract

The utility model provides a paper defect online detection device which comprises a detection box, guide rollers are arranged at the left end and the right end of the top of the detection box, through openings are formed in the inner sides of the guide rollers at the top of the detection box, anti-scraping rollers are arranged on the left side and the right side in the through openings, an installation opening is formed in the front end of the detection box, and a detection mechanism is arranged in the installation opening in a sliding mode. The detection mechanism is located in the detection box, tensioning degree adjusting mechanisms are arranged on the two sides of the detection mechanism in the detection box in a sliding mode, a control mechanism is further arranged in the detection box, and the control mechanism is in threaded connection with the tensioning degree adjusting mechanisms. According to the utility model, the scratch-resistant rollers are arranged on the left side wall and the right side wall in the through hole, so that after paper enters and exits from the detection box, the paper can be prevented from being scraped by the through hole to be broken in the process of adjusting the tension degree of the paper, and the paper can be conveniently shot and detected; by arranging the control mechanism, the tension adjusting mechanisms on the two sides of the detection mechanism can be synchronously controlled to be close to or away from each other, so that the tension of the paper is adjusted more conveniently.

Description

Technical Field

[0001] This utility model relates to an online paper defect detection device, belonging to the technical field of paper detection devices. Background Technology

[0002] Paper is a non-woven material made from plant fibers that can be folded at will for writing. After the paper is made on the papermaking machine, it needs to be inspected to check for defects such as discoloration, holes, and defects on the paper surface, so as to prevent paper defects from affecting the use of the paper.

[0003] Chinese utility model patent CN216669777U discloses an "online detection device for paper defects in food processing paper," comprising: a detection chamber, a sealing cover, a detection component, two guide rollers, two adjustment components, and a supplementary light. The sealing cover is disposed on the inner wall of the detection chamber, the detection component is mounted on the sealing cover, the two guide rollers are respectively mounted on both sides of the top of the detection chamber, the two adjustment components are symmetrically mounted on both sides of the detection chamber, and the supplementary light is mounted on the bottom of the inner wall of the detection chamber. The detection component includes a mounting plate disposed on the sealing cover. This utility model not only allows for convenient adjustment of paper tension, preventing loosening or breakage during paper transport and thus ensuring efficient detection of paper defects, but also facilitates the removal of the high-speed detection probe from the detection chamber, greatly simplifying the maintenance of the high-speed detection probe, thereby improving the practicality of this detection device.

[0004] In the aforementioned patents, when adjusting the paper tension, it is necessary to simultaneously rotate the handwheels in the adjustment components installed on both sides of the detection chamber to synchronously adjust the paper tension, which is inconvenient. Furthermore, the detection device mentioned in the aforementioned patents can only detect paper defects on one side of the paper. Therefore, this utility model proposes an online paper defect detection device to solve the above problems. Utility Model Content

[0005] Based on the above background, the purpose of this utility model is to provide an online paper defect detection device to solve the problems in the background art.

[0006] This utility model provides the following technical solution:

[0007] An online paper defect detection device includes a detection box. Guide rollers are provided at both the left and right ends of the top of the detection box. Openings are provided inside the guide rollers at the top of the detection box. Anti-scratch rollers are provided on both the left and right sides of each opening. An installation port is provided at the front of the detection box. A detection mechanism is slidably disposed within the installation port. The detection mechanism is located inside the detection box. Tension adjustment mechanisms are slidably disposed on both sides of the detection mechanism inside the detection box. A control mechanism is also provided inside the detection box, and the control mechanism is threadedly connected to the tension adjustment mechanism.

[0008] Preferably, the detection mechanism includes a U-shaped mounting plate, with a high-speed detection probe installed in the center of the top and bottom walls of the U-shaped mounting plate. Symmetrical L-shaped mounting plates are provided on both sides of the high-speed detection probe on the U-shaped mounting plate, and multiple supplementary lighting strips are installed on the end face of the L-shaped mounting plate away from the inner wall of the U-shaped mounting plate.

[0009] Preferably, the tension adjustment mechanism includes a set of side plates, the bottom of the set of side plates are connected by a connecting plate, a tension roller is rotatably connected to the top of the set of side plates, the outer side of the set of side plates is attached to the inner wall of the detection box, and the bottom of the set of side plates and the connecting plate are attached to the bottom side wall of the detection box.

[0010] Preferably, the control mechanism includes a bidirectional threaded rod, which is laterally rotatably connected to the inside of the testing box. The threaded portions at both ends of the bidirectional threaded rod are respectively threadedly connected to the connecting plates in the tension adjustment mechanisms on both sides of the testing mechanism. The right end of the bidirectional threaded rod extends through the right wall of the testing box and is equipped with a control handwheel.

[0011] Preferably, the U-shaped mounting plate has a handle on its front end face, and a first stop is horizontally arranged on the right side of the handle on the U-shaped mounting plate.

[0012] Preferably, a baffle is rotatably connected to the right side of the mounting port on the front end face of the detection box, and a second stop is vertically arranged at the lower left of the rotation position of the baffle on the detection box.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] This utility model discloses an online paper defect detection device. By setting anti-scratch rollers on the left and right side walls inside the opening, the paper can be prevented from being scratched by the opening and breaking during the paper tension adjustment process after the paper enters and exits the detection box, which facilitates the paper to be photographed and detected. By setting a control mechanism, the tension adjustment mechanisms on both sides of the detection mechanism can be controlled to move closer or further apart, making the paper tension adjustment more convenient. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a half-sectional structural diagram of the present invention.

[0018] In the diagram: 1. Detection box; 2. Guide roller; 3. Through port; 4. Anti-scratch roller; 5. Mounting port; 6. U-shaped mounting plate; 7. High-speed detection probe; 8. L-shaped mounting plate; 9. Supplemental lighting strip; 10. Side plate; 11. Connecting plate; 12. Tensioning roller; 13. Bidirectional threaded rod; 14. Control handwheel; 15. Handle; 16. First stop; 17. Baffle; 18. Second stop. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0020] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the field. Unless otherwise specified, the methods in the following embodiments are conventional methods in the field. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0021] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following detailed description, many specific details are set forth to facilitate explanation and provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may be practiced by those skilled in the art without these specific details.

[0022] like Figures 1-2As shown, an online paper defect detection device includes a detection box 1. Guide rollers 2 are provided at both the left and right ends of the top of the detection box 1. Openings 3 are provided inside the guide rollers 2 at the top of the detection box 1. Anti-scratch rollers 4 are provided on both the left and right sides of the openings 3. An installation port 5 is provided at the front end of the detection box 1. A detection mechanism is slidably disposed within the installation port 5. The detection mechanism is located inside the detection box 1. Tension adjustment mechanisms are slidably disposed on both sides of the detection mechanism inside the detection box 1. A control mechanism is also provided inside the detection box 1, and the control mechanism is threadedly connected to the tension adjustment mechanism.

[0023] In the above technical solution, the anti-scratch rollers 4 installed on the left and right side walls inside the opening 3 can prevent the paper from being scratched by the opening 3 and causing paper breakage during the process of adjusting the paper tension after the paper enters and exits the detection box 1, which facilitates the paper to be photographed and detected. By setting a control mechanism, the tension adjustment mechanisms on both sides of the detection mechanism can be controlled to move closer or further apart, making the paper tension adjustment more convenient.

[0024] In this utility model, the detection mechanism includes a U-shaped mounting plate 6, and a high-speed detection probe 7 is installed in the center of the top and bottom walls of the U-shaped mounting plate 6. Symmetrical L-shaped mounting plates 8 are provided on both sides of the high-speed detection probe 7 on the U-shaped mounting plate 6. Multiple supplementary light strips 9 are installed on the end face of the L-shaped mounting plate 8 away from the inner wall of the U-shaped mounting plate 6.

[0025] In the above technical solution, by installing high-speed detection probes 7 on both the top and bottom walls of the U-shaped mounting plate 6, paper defects on both sides of the paper can be detected simultaneously. Supplemental lighting can be provided by setting up supplemental lighting strips 9 when the high-speed detection probes 7 are detecting.

[0026] In this utility model, the tension adjustment mechanism includes a set of side plates 10. The bottom positions of the set of side plates 10 are connected by a connecting plate 11. The top positions of the set of side plates 10 are rotatably connected to the set of side plates 10. The outer side of the set of side plates 10 is attached to the inner wall of the detection box 1. The bottom of the set of side plates 10 and the connecting plate 11 are both attached to the bottom side wall of the detection box 1.

[0027] In the above technical solution, by setting tension roller 12 and adjusting the distance between the two tension rollers 12, the tension of the paper can be adjusted, which can prevent loosening or breakage during the paper conveying process, thereby ensuring the detection efficiency of paper defects.

[0028] In this utility model, the control mechanism includes a bidirectional threaded rod 13, which is laterally rotatably connected to the detection box 1. The threaded portions at both ends of the bidirectional threaded rod 13 are respectively threadedly connected to the connecting plates 11 in the tension adjustment mechanisms on both sides of the detection mechanism. The right end of the bidirectional threaded rod 13 extends through the right wall of the detection box 1 and is equipped with a control handwheel 14.

[0029] In the above technical solution, by rotating the control handwheel 14 installed on the bidirectional threaded rod 13 outside the detection box 1, the bidirectional threaded rod 13 can be driven to rotate, which in turn can drive the connecting plates 11 to move away from each other or closer to each other, thereby driving the tension rollers 12 to move closer to each other or further away from each other, making the paper tension adjustment more convenient.

[0030] In this utility model, a handle 15 is provided on the front end face of the U-shaped mounting plate 6, and a first stop block 16 is horizontally arranged on the right side of the handle 15 on the U-shaped mounting plate 6.

[0031] In the above technical solution, by setting a handle 15, the U-shaped mounting plate 6 can be pulled out from the mounting port 5 by holding the handle 15, which facilitates the maintenance of the high-speed detection head.

[0032] In this utility model, a baffle 17 is rotatably connected to the right side of the mounting port 5 on the front end face of the detection box 1, and a second stop 18 is vertically arranged at the lower left of the rotation position of the baffle 17 on the detection box 1.

[0033] In the above technical solution, by rotating the connecting baffle 17 on the mounting port 5 side at the front end of the detection box 1, when the U-shaped mounting plate 6 is located inside the detection box 1, rotating it until the bottom of the baffle 17 abuts against the first stop block 16 can prevent the U-shaped mounting plate 6 from falling out of the mounting port 5 and affecting the detection.

[0034] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An online paper defect detection device, characterized in that: The test box (1) includes a test box (1), which has guide rollers (2) at both the top left and right ends. The test box (1) has an opening (3) on the inner side of the guide rollers (2) at the top. The opening (3) has anti-scratch rollers (4) on both the left and right sides. The test box (1) has an installation port (5) at the front end. The installation port (5) has a test mechanism that is slidably installed inside the installation port (5). The test mechanism is located inside the test box (1). Tension adjustment mechanisms are slidably installed on both sides of the test mechanism inside the test box (1). The test box (1) also has a control mechanism that is threadedly connected to the tension adjustment mechanism.

2. The paper defect online detection device according to claim 1, characterized in that: The detection mechanism includes a U-shaped mounting plate (6), and a high-speed detection probe (7) is installed in the center of the top and bottom walls of the U-shaped mounting plate (6). A symmetrical L-shaped mounting plate (8) is provided on both sides of the high-speed detection probe (7) on the U-shaped mounting plate (6). Multiple supplementary light strips (9) are installed on the end face of the L-shaped mounting plate (8) away from the inner wall of the U-shaped mounting plate (6).

3. The paper defect online detection device according to claim 1, characterized in that: The tension adjustment mechanism includes a set of side plates (10), the bottom positions of the set of side plates (10) are connected by a connecting plate (11), the top positions of the set of side plates (10) are rotatably connected to a tension roller (12), the outer side of the set of side plates (10) is attached to the inner wall of the detection box (1), and the bottom of the set of side plates (10) and the connecting plate (11) are both attached to the bottom side wall inside the detection box (1).

4. The paper defect online detection device according to claim 3, characterized in that: The control mechanism includes a bidirectional threaded rod (13), which is laterally rotatably connected to the inside of the detection box (1). The threaded portions at both ends of the bidirectional threaded rod (13) are respectively threaded to the connecting plates (11) in the tension adjustment mechanism on both sides of the detection mechanism. The right end of the bidirectional threaded rod (13) passes through the right wall of the detection box (1) and is equipped with a control handwheel (14).

5. The paper defect online detection device according to claim 2, characterized in that: The U-shaped mounting plate (6) has a handle (15) on its front end surface, and a first stop (16) is horizontally arranged on the right side of the handle (15) on the U-shaped mounting plate (6).

6. The paper defect online detection device according to claim 5, characterized in that: The front end of the test box (1) has a baffle (17) rotatably connected to the right side of the mounting port (5). The upper baffle (17) of the test box (1) is vertically arranged with a second stop (18) at the lower left of the rotation position.

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