Device and method for detecting oil resistance of paper

Abstract

The invention discloses a device and method for detecting the oil resistance of paper, and the device comprises a solution preparation module which is used for preparing a test solution with the required concentration; the liquid dropping module is connected with the solution preparation module and is used for titrating the prepared test solution onto sample paper; the erasing module is used for erasing the test solution on the sample paper; the image acquisition module is used for performing image acquisition on the sample paper; and the control module is connected with the solution preparation module, the erasing module and the image acquisition module, and is used for controlling the concentration of the test solution when the solution preparation module prepares the test solution, controlling the erasing module to erase the test solution on the sample paper after the dropping module titrates the test solution on the sample paper, and controlling the image acquisition module to acquire the test solution on the sample paper. The control module is used for controlling the image acquisition module to acquire images of sample paper. According to the invention, the oil resistance detection efficiency of the cigarette paper can be improved, and objective and accurate detection results are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of cigarette supporting material detection, and in particular to a detection device and a detection method for oil resistance of paper. Background Art

[0002] Oil-resistant cigarette paper is now widely used in the tobacco industry. Its oil resistance will affect the degree of oil penetration. At present, the oil resistance test is carried out using the surface repulsion method specified in Part 2 of the national standard GB / T 22805.2 "Determination of oil resistance of paper and paperboard". Usually, a group of test solutions are formed by configuring solutions of different proportions and numbering them from low to high. Different numbered test solutions have different penetration properties. The test solution is dropped on the surface of the sample. The maximum number of the test solution when no dark spots are generated on the surface of the sample is the oil resistance of the sample.

[0003] At present, the oil resistance test of cigarette paper requires manual operation of taking a numbered test solution each time, dropping the test solution on the cigarette paper, wiping off the test solution on the sample surface of the cigarette paper after a predetermined time, observing with the human eye, and repeating the above operation again after observation until the test result is determined. However, the existing oil resistance test of cigarette paper requires manual operation of using a single numbered test solution for trial and error one by one each time, which involves a lot of repetitive work, and manual operation has manual errors and differences between personnel in the dripping distance, dripping amount, erasing time, erasing force and observation results, so the objectivity and accuracy of the test results cannot be guaranteed, and the repetitive operation speed is slow and the efficiency is low. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the oil resistance detection efficiency of existing cigarette paper is low and the detection result is not objective. The present invention provides a detection device and method for the oil resistance of paper, which can improve the detection efficiency of the oil resistance of cigarette paper and ensure that the detection result is objective and accurate.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a device for detecting oil resistance of paper, comprising:

[0006] A solution preparation module, used to prepare a test solution of a required concentration;

[0007] A dripping module, connected to the solution preparation module, is used to drip the prepared test solution onto the sample paper;

[0008] An erasing module, used for erasing the test solution on the sample paper;

[0009] An image acquisition module, used for acquiring images of sample paper;

[0010] The control module is connected to the solution preparation module, the erasing module and the image acquisition module, and is used to control the concentration of the test solution when the solution preparation module prepares the test solution, and to control the erasing module to erase the test solution on the sample paper after the dripping module drips the test solution on the sample paper, and to control the image acquisition module to acquire an image of the sample paper.

[0011] According to another specific embodiment of the present invention, a timing module is further included, which is connected to the control module and is used to start timing after the dripping module titrates the sample paper. When a predetermined time has passed, the control module sends an erasing signal to the erasing module.

[0012] According to another specific embodiment of the present invention, the predetermined time is 15 seconds.

[0013] According to another specific embodiment of the present invention, the solution preparation module comprises:

[0014] A reagent storage unit, used to store raw materials of the test solution;

[0015] The conveying unit is connected to the reagent storage unit and the dripping module and is connected to the control module. The control module controls the conveying unit to transport the amount of raw materials of the test solution from the reagent storage unit to the dripping module.

[0016] According to another specific embodiment of the present invention, the dripping module includes a plurality of drippers, which are connected to the solution preparation module and are respectively used to store prepared test solutions of different concentrations.

[0017] According to another specific embodiment of the present invention, the dropper is located directly above the sample paper, and the distance between the mouth of the dropper and the surface of the sample paper is 10 mm.

[0018] According to another specific embodiment of the present invention, it also includes a stage for carrying the sample paper.

[0019] The erasing module is arranged on one side of the stage and includes:

[0020] A robotic arm connected to a control module;

[0021] An erasing block, the erasing block extends along the length direction of the sample paper, and one side of the erasing block is connected to one end of the mechanical arm;

[0022] The erasing track is arranged in the stage and is slidably connected with the other end of the mechanical arm.

[0023] According to another specific embodiment of the present invention, a water and oil absorbing member is provided at the bottom of the erasing block.

[0024] According to another specific embodiment of the present invention, a second pressure detection device is provided at the front end of the robot arm, and the second pressure detection device is connected to the control module.

[0025] According to another specific embodiment of the present invention, the image acquisition module is arranged on the other side of the stage, and includes:

[0026] A camera, connected to the control module, for capturing images of the sample paper;

[0027] The lighting components are arranged on both sides of the camera along the length direction of the sample paper;

[0028] The image processing unit is connected to the camera and the control module, and is used for processing the image captured by the camera and sending the processed image to the control module.

[0029] According to another specific embodiment of the present invention, it also includes:

[0030] A display unit connected to the control module and used to display the image processed by the image processing unit;

[0031] The storage unit is connected to the control module and is used to store the image processed by the image processing unit.

[0032] According to another specific embodiment of the present invention, it also includes a sliding mechanism, which is connected to the image acquisition module and is used to move the image acquisition module along the length direction of the sample paper.

[0033] The embodiment of the present invention further provides a method for detecting the oil resistance of paper, which is performed using the above-mentioned device for detecting the oil resistance of paper, and comprises the following steps:

[0034] Prepare the test solution of required concentration through the solution preparation module;

[0035] Transfer the test solution into the corresponding numbered dropper;

[0036] Titrate the test solution in the dropper onto the sample paper and start the timing module;

[0037] After a preset time has passed, the timing module starts the erasing module to erase the solution on the sample paper;

[0038] The image acquisition mechanism acquires images of the sample paper;

[0039] The captured image is transmitted to the image processing unit for image processing, and the processed image is transmitted to the control module, and the control module transmits the processed image to the display unit for display and to the storage unit for storage.

[0040] According to the detection device and detection method of oil resistance of paper provided by the present invention, the solution of required concentration is configured by the solution preparation module, and the solution can be prepared as needed, so as to prevent improper storage after the test solution is configured in advance or multiple openings during use to change the concentration of the test solution due to volatilization. The control module is connected to the solution preparation module to control the concentration of the test solution configured by the solution preparation module. During detection, the drip module is connected to the solution preparation module to titrate the configured test solution onto the sample paper through the drip module. After the test solution is titrated onto the sample paper, the control module controls the erasing module to erase the test solution on the surface of the sample paper. After the erasing module erases the test solution on the sample paper, the control module controls the image acquisition module to acquire the image of the sample paper, so that the solution preparation, erasing, and image acquisition can be automatically controlled, which can reduce the error caused by manual operation, improve the detection efficiency, and because of the mechanized operation, it can ensure that the test results are objective, thereby improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A block diagram showing a device for detecting oil resistance of paper provided by one embodiment of the present invention;

[0042] Figure 2 A schematic diagram of an erasing module provided by an embodiment of the present invention is shown. Figure 1 ;

[0043] Figure 3 A schematic diagram of an erasing module provided by an embodiment of the present invention is shown. Figure 2 ;

[0044] Figure 4 A schematic diagram of an erasing module provided by an embodiment of the present invention is shown. Figure 3 ;

[0045] Figure 5 (a) to Figure 5 (c) is a schematic diagram showing the test results of the sample paper according to an embodiment of the present invention.

[0046] Figure Number:

[0047] 1. Stage, 2. Solution preparation module, 21. Reagent storage unit, 22. Transport unit, 3. Dropping module, 4. Erasing module, 41. Robotic arm, 42. Erasing block, 43. Erasing track, 5. Image acquisition module, 51. Camera, 6. Control module, 7. Timing module, 8. Display unit, 9. Storage unit. DETAILED DESCRIPTION

[0048] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0049] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0050] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0051] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0052] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0053] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0054] like Figure 1 As shown, Figure 1 A block diagram of a device for detecting the oil resistance of paper provided in one embodiment of the present invention. In this embodiment, the device for detecting the oil resistance of paper includes:

[0055] Solution preparation module 2, used for preparing a test solution of a required concentration;

[0056] The dripping module 3 is connected to the solution preparation module 2 and is used to drip the prepared test solution onto the sample paper;

[0057] An erasing module 4, used for erasing the test solution on the sample paper;

[0058] An image acquisition module 5 is used to acquire images of the sample paper;

[0059] The control module 6 is connected to the solution preparation module 2, the erasing module 4 and the image acquisition module 5, and is used to control the concentration of the test solution when the solution preparation module 2 prepares the test solution, and to control the erasing module 4 to erase the test solution on the sample paper after the dripping module 3 drips the test solution on the sample paper, and to control the image acquisition module 5 to capture the image of the sample paper.

[0060] With this technical solution, the solution preparation module 2 is used to prepare the solution of the required concentration, and the solution can be prepared as needed, so as to prevent improper storage after the test solution is prepared in advance or multiple openings during use to change the concentration of the test solution due to volatilization. The control module 6 is connected to the solution preparation module 2 to control the concentration of the test solution configured by the solution preparation module 2. During detection, the drip module 3 is connected to the solution preparation module 2 to titrate the configured test solution onto the sample paper through the drip module 3. After the test solution is titrated onto the sample paper, the control module 6 controls the erasing module 4 to erase the test solution on the surface of the sample paper. After the erasing module 4 erases the test solution on the sample paper, the control module 6 controls the image acquisition module 5 to capture the image of the sample paper, so that the solution preparation, erasing, and image acquisition can be automatically controlled, which can reduce the errors caused by manual operation, improve the detection efficiency, and because of the mechanized operation, it can ensure that the test results are objective, thereby improving the accuracy of the test results.

[0061] Furthermore, it also includes a timing module 7 connected to the control module 6, which is used for starting timing after the dripping module 3 titrates the sample paper. When a predetermined time has passed, the control module 6 sends an erasing signal to the erasing module 4.

[0062] With this technical solution, a timing module 7 is provided in the detection device, and the timing module 7 is connected to the control module 6. After the dripping module 3 drips the test solution on the sample paper, the timing module 7 starts timing. When a predetermined time has passed, the control module 6 sends an erasing signal to the erasing module 4 so that the erasing module 4 wipes the sample paper to erase the test solution on the sample paper. In this way, the timing module 7 is used for timing, which can ensure the accuracy of the timing time, so that the time for the erasing module 4 to erase the sample paper remains consistent.

[0063] Optionally, the scheduled time is 15 seconds.

[0064] Furthermore, in this embodiment, the solution preparation module 2 includes:

[0065] A reagent storage unit 21, for storing raw materials of the test solution;

[0066] The conveying unit 22 is connected to the reagent storage unit 21 and the dripping module 3 and is connected to the control module 6 . The control module 6 controls the conveying unit 22 to transport the amount of raw materials of the test solution from the reagent storage unit 21 to the dripping module 3 .

[0067] Specifically, the reagent storage unit 21 includes a plurality of liquid storage containers, each for storing the original liquid of the test solution. Usually, the reagent storage unit 21 is in a sealed state. In this embodiment, the reagent storage unit 21 includes liquid storage containers for storing castor oil, n-heptane and toluene, respectively. The delivery unit 22 is connected to the reagent storage unit 21 and connected to the control module 6, so as to deliver the original liquid of the test solution stored in the reagent storage unit 21 to the dripping module 3 in proportion through the control module 6, so as to configure the test solution of the required concentration.

[0068] In this embodiment, the delivery unit 22 is a metering pump, which is connected to the control module 6 to automatically adjust the amount of liquid discharged from the reagent storage unit 21 to the dripping module 3. Optionally, the metering pump is connected to the dripping module 3 through a multi-way valve to deliver the raw materials of each test solution to the dripping module 3 through different valve ports of the multi-way valve.

[0069] Furthermore, the dripping module 3 includes a plurality of drippers, which are connected to the solution preparation module 2 and are respectively used to store prepared test solutions of different concentrations.

[0070] Specifically, all the droppers are numbered, and after each numbered test solution is configured, each numbered test solution is delivered to the corresponding numbered dropper. In a specific embodiment of the present embodiment, the dropper is connected to a pressure applying device, and the pressure applying device is connected to a control module 6. The control module 6 controls the pressure applying device to apply pressure to the dropper to titrate the test solution in the dropper onto the sample paper. In order to ensure that the dripping amount of the dropper is stable and consistent, the control module 6 applies a uniform pressure to the pressure applying device.

[0071] It should be noted that in the present invention, all numbered test solutions can be configured and tested simultaneously as needed, or only some numbered test solutions can be configured and tested as needed, and they can be configured as needed to prevent improper storage of pre-configured test solutions or changes in the concentration of the test solutions due to multiple openings during use, thereby ensuring the accuracy of the test results.

[0072] Furthermore, the dropper is located directly above the sample paper, and the distance between the mouth of the dropper and the surface of the sample paper is 10 mm.

[0073] Specifically, in this embodiment, an adjustment mechanism is also included, and the adjustment mechanism is connected to the dropper, and the distance between the mouth of the dropper and the surface of the sample paper can be adjusted to 10 mm by the adjustment mechanism. In the present invention, the structure of the adjustment mechanism is not limited, as long as it can play the role of adjusting the distance between the mouth of the dropper and the surface of the sample paper.

[0074] Furthermore, if Figures 2 to 4 As shown, in this embodiment, the detection device further includes a stage 1 for carrying the sample paper, and the erasing module 4 is arranged on one side of the stage 1, including:

[0075] A mechanical arm 41 connected to the control module 6;

[0076] An erasing block 42, the erasing block 42 extends along the length direction of the stage 1, and one side of the erasing block 42 is connected to one end of the mechanical arm 41;

[0077] The erasing track 43 is disposed in the stage 1 and is slidably connected to the other end of the mechanical arm 41 .

[0078] Specifically, the length direction of the stage 1 is the length direction of the sample paper, and the sample paper is fixed on the stage 1. The erasing block 42 extends along the length direction of the stage 1, is in the shape of a long strip, and is arranged on one side of the stage 1. The erasing block 42 includes a side facing the stage 1 and a side away from the stage 1, wherein, on the side away from the stage 1, the erasing block 42 is connected to the mechanical arm 41. One end of the mechanical arm 41 is connected to the erasing block 42, and the other end is slidably connected to the erasing track 43. In the present embodiment, the erasing track 43 is arranged in the stage 1, and the erasing track 43 includes a horizontal part and a vertical part. In the present embodiment, the mechanical arm 41 is connected to the control module 6, and the control module 6 controls the trajectory of the mechanical arm 41 moving in the erasing track 43. When in use, the robot arm 41 first moves along the horizontal part of the erasing track 43 to move the erasing block 42 to directly above the sample paper on the stage 1, that is, the vertical center position of the dropper. Then the control module 6 controls the robot arm 41 to move along the vertical part of the erasing track 43 so that the erasing block 42 contacts the sample paper, thereby erasing the sample paper.

[0079] Optionally, the width of the erasing block 42 is adapted to the width of the sample paper. More optionally, a vibrator is connected to the erasing block 42 to make the erasing block 42 vibrate slightly on the sample paper so as to better erase the test solution on the sample paper.

[0080] Furthermore, a water and oil absorbing member is provided at the bottom of the erasing block 42 .

[0081] This technical solution is used to absorb the test solution and thus wipe off the test solution on the sample paper.

[0082] Furthermore, a second pressure detection device is provided at the front end of the robotic arm 41 , and the second pressure detection device is connected to the control module 6 .

[0083] Specifically, a second pressure detection device is provided at the front end of the robotic arm 41, so that when the erasing block 42 contacts the surface of the sample paper, the second pressure detection device detects a pressure signal, and the second pressure detection device transmits the pressure signal to the control module 6. After receiving the pressure signal, the control module 6 controls the robotic arm 41 to stop moving downward, so that the erasing force of the erasing block 42 on the sample paper remains consistent.

[0084] Furthermore, in this embodiment, the image acquisition module 5 is disposed on the other side of the stage 1, and includes:

[0085] A camera 51, connected to the control module 6, for capturing images of the sample paper;

[0086] Illumination components are arranged on both sides of the camera 51 along the length direction of the stage 1;

[0087] The image processing unit is connected to the camera 51 and the control module 6 , and is used for processing the image captured by the camera 51 and sending the processed image to the control module 6 .

[0088] Furthermore, it also includes a sliding mechanism, which is connected to the image acquisition mechanism and is used to move the image acquisition mechanism along the length direction of the stage 1.

[0089] Specifically, in this embodiment, the sliding mechanism includes a sliding track and a connecting arm, which are arranged on the other side of the stage 1. The sliding track is fixed on the side of the stage 1 and extends along the length direction of the stage 1. One end of the connecting arm is slidably connected to the sliding track, and the other end is fixedly connected to the camera 51. When the connecting arm slides along the sliding track, the camera 51 is driven to move along the length direction of the stage 1, so that the camera 51 moves from one end of the stage 1 to the other end, so that the image of the drop position of each numbered test solution on the sample paper can be captured. Optionally, the connecting arm is connected to the control module 6, and the control module 6 controls the connecting arm to move automatically.

[0090] In addition, lighting components are provided on both sides of the camera 51 along the length direction of the stage 1 to ensure that the light source is uniform and not blocked when the camera 51 takes a picture of each numbered position on the sample paper, thereby improving the accuracy of the detection result.

[0091] The control module 6 is connected to the camera 51 to control the camera 51 to take pictures of the drop position in time to prevent the test solution from volatilizing. In addition, after the camera 51 transmits the image of the drop position of each numbered test solution on the sample paper obtained after taking the picture to the control module 6, the control module 6 transmits it to the image processing unit, and the image processing unit recognizes the image of the drop position of each numbered test solution, and obtains the oil resistance data of the sample paper by judging whether there is a dark spot at the drop position.

[0092] Specifically, by comparing the drop position of the test solution with the color of the sample paper to see if there is a change, it is determined whether there is a dark spot at the drop position. If the drop position is consistent with the color of the sample paper, it means that the numbered test solution has not penetrated; if the color of the drop position of the test solution becomes darker or lighter, and is different from the color of the sample paper, that is, a dark spot or a light spot appears at the numbered solution position on the sample paper, it means that the numbered test solution has penetrated.

[0093] like Figure 5 (a) to 5(c), Figure 5 (a) to 5(c) are schematic diagrams of different test results of the test solution titrated onto the sample paper. Figure 5 As shown in (a), the test solution did not penetrate, and the color of the drop position did not change after wiping off the test solution, which was consistent with the sample color; Figure 5 As shown in (b), the test solution penetrates, and after wiping off the test solution, the color of the drop location becomes darker due to the solution penetration, and dark spots appear in the picture; Figure 5 As shown in (c), the test solution penetrated. After wiping off the test solution, the color of the drop location became transparent due to the solution penetration, and light spots appeared in the picture.

[0094] Furthermore, it also includes:

[0095] A display unit 8, connected to the control module 6, for displaying the image processed by the image processing unit;

[0096] The storage unit 9 is connected to the control module 6 and is used to store the image processed by the image processing unit.

[0097] Specifically, the image processing unit transmits the oil resistance data obtained after processing by the image processing unit to the control module 6, and the control module 6 splices the pictures of each numbered test solution area, splices and integrates them in the order of numbers, and attaches the identified oil resistance data to form a test report. The control module 6 transmits the test report to the display unit 8 and the storage unit 9 to display and store the test results.

[0098] The working principle of the oil resistance detection device of paper provided by the present invention is as follows: each dropper is numbered, and the amount of infusion delivered to the dropper from the reagent storage unit 21 is controlled by the conveying unit 22, so as to obtain test solutions with different numbers. The control module 6 controls the pressure driving device to apply the same pressure to each numbered dropper, so that the dropper drips out the same amount of test solution. After the dropper drips out the test solution, the timing module 7 starts timing. After a predetermined time has passed, the control module 6 controls the mechanical arm 41 of the erasing mechanism to move along the horizontal part of the erasing track 43. When the mechanical arm 41 moves to the front end of the erasing track 43, the erasing block 42 is just above the sample paper, that is, the vertical center position of the dropper. After the erasing block 42 is positioned at the vertical center position of the dropper, it continues to move vertically downward along the vertical part of the erasing track 43. A second pressure detection device is provided at the front end of the mechanical arm 41. When the erasing block 42 moves vertically downward to contact the surface of the sample paper, the second pressure detection device detects the pressure, and the mechanical arm 41 is stopped from moving downward. Afterwards, the erasing block 42 wipes the sample paper to erase the test solution on the sample paper. After wiping is completed, the mechanical arm 41 returns to the initial position along the erasing track 43. The control module 6 controls the image acquisition mechanism to slide along the sliding mechanism to obtain the image of the dripping position of each numbered test solution, and the camera 51 transmits the acquired image to the control module 6. After the control module 6 obtains the image, the control module 6 transmits the obtained image to the image processing unit, and the image processing unit identifies the image of the dripping position of each numbered test solution, thereby obtaining the oil resistance data of the sample paper, and the control module 6 splices and integrates the images of the dripping positions of each numbered test solution and attaches the obtained oil resistance data to form a test report, and sends the test report to the display unit 8 and the storage unit 9 to display and store the test report.

[0099] The embodiment of the present invention further provides a method for detecting the oil resistance of paper, which is performed using the above-mentioned device for detecting the oil resistance of paper, and comprises the following steps:

[0100] Prepare a test solution of required concentration through the solution preparation module 2;

[0101] Transfer the test solution into the corresponding numbered dropper;

[0102] Titrate the test solution in the dropper onto the sample paper and start the timing module 7;

[0103] After a predetermined time has passed, the timing module 7 starts the erasing module 4 to erase the solution on the sample paper;

[0104] The image acquisition module 5 acquires images of the sample paper;

[0105] The captured image is transmitted to the image processing unit for image processing, and the processed image is transmitted to the control module 6 , and the control module 6 transmits the processed image to the display unit 8 for display and to the storage unit 9 for storage.

[0106] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A device for detecting oil resistance of paper, characterized in that: include: A solution preparation module, used to prepare a test solution of a required concentration; A dripping module, connected to the solution preparation module, for dripping the prepared test solution onto the sample paper; An erasing module, used for erasing the test solution on the sample paper; An image acquisition module, used for acquiring images of the sample paper; A control module is connected to the solution preparation module, the erasing module and the image acquisition module, and is used to control the concentration of the test solution when the solution preparation module prepares the test solution, and to control the erasing module to erase the test solution on the sample paper after the dripping module drips the test solution on the sample paper, and to control the image acquisition module to acquire an image of the sample paper.

2. The detection device according to claim 1, characterized in that: It also includes a timing module connected to the control module, which is used to start timing after the dripping module titrates the sample paper. When a predetermined time has passed, the control module sends an erasing signal to the erasing module.

3. The detection device according to claim 2, characterized in that: The predetermined time is 15 seconds.

4. The detection device according to claim 1, characterized in that: The solution preparation module comprises: A reagent storage unit, used for storing the raw materials of the test solution; The conveying unit is connected to the reagent storage unit and the dripping module and is connected to the control module. The control module controls the conveying unit to transport the amount of the raw material of the test solution from the reagent storage unit to the dripping module.

5. The detection device according to claim 1, characterized in that: The dripping module includes a plurality of drippers, which are connected to the solution preparation module and are respectively used to store prepared test solutions of different concentrations.

6. The detection device according to claim 5, characterized in that: The dropper is located directly above the sample paper, and the distance between the mouth of the dropper and the surface of the sample paper is 10 mm.

7. The detection device according to claim 1, characterized in that: It also includes a stage for carrying the sample paper. The erasing module is disposed on one side of the stage and includes: A mechanical arm connected to the control module; An erasing block, the erasing block extending along the length direction of the sample paper, one side of the erasing block connected to one end of the mechanical arm; An erasing track is arranged in the stage and is slidably connected to the other end of the mechanical arm.

8. The detection device according to claim 7, characterized in that: The bottom of the erasing block is provided with a water and oil absorbing member.

9. The detection device according to claim 7, characterized in that: A second pressure detection device is provided at the front end of the mechanical arm, and the second pressure detection device is connected to the control module.

10. The detection device according to claim 7, characterized in that: The image acquisition module is arranged on the other side of the stage, and includes: A camera, connected to the control module, for capturing images of the sample paper; An illumination component is arranged on both sides of the camera along the length direction of the sample paper; An image processing unit is connected to the camera and the control module, and is used for processing the image captured by the camera and sending the processed image to the control module.

11. The detection device according to claim 10, characterized in that: Also includes: A display unit, connected to the control module, for displaying the image processed by the image processing unit; A storage unit is connected to the control module and is used to store the image processed by the image processing unit.

12. The detection device according to claim 10 or 11, characterized in that: It also includes a sliding mechanism, which is connected to the image acquisition module and is used to move the image acquisition module along the length direction of the sample paper.

13. A method for detecting oil resistance of paper, characterized in that: The method is carried out using the oil resistance detection device of paper as claimed in any one of claims 1 to 12, comprising the following steps: Prepare the test solution of required concentration through the solution preparation module; Transfer the test solution into the corresponding numbered dropper; titrating the test solution in the dropper onto the sample paper and starting a timing module; After a predetermined time has passed, the timing module starts the erasing module to erase the solution on the sample paper; The image acquisition mechanism acquires an image of the sample paper; The captured image is transmitted to the image processing unit for image processing, and the processed image is transmitted to the control module, and the control module transmits the processed image to the display unit for display and to the storage unit for storage.

Images