Automatic paper cutting device and control method

Abstract

The application discloses an automatic paper cutting device and a control method, and relates to the technical field of paper processing. The automatic paper cutting device comprises a cutting platform, a mounting platform, a conveying mechanism, a cutting positioning system, a paper cutter and a processor. The cutting platform is fixedly connected with the mounting platform through supporting columns. The mounting platform is provided with the cutting positioning system. The cutting positioning system is used for collecting platform images for preprocessing, determining paper position information and movement information related to the cutting area of the paper. The conveying mechanism comprises a moving magnetic assembly and a first magnet. The moving magnetic assembly is mounted on the mounting platform. The first magnet is arranged in the cutting platform. The mounting platform is provided with the paper cutter on the periphery. The processor is arranged in the mounting platform. The moving magnetic assembly, the cutting positioning system and the paper cutter are in communication connection with the processor. The application can automatically cut the paper, does not cause the injury to the fingers, can independently select the cutting area, and the cutting is more accurate.

Description

Technical Field

[0001] This invention relates to the field of paper processing technology, and in particular to an automatic paper cutting device and control method. Background Technology

[0002] In the paper production process, paper cutters are usually used. A paper cutter is a tool for cutting paper. A paper cutter generally includes a base and a sliding cutter body. The blade is specially treated to make the cuts sharp and durable, and the cut products are neat and burr-free.

[0003] Currently, paper is cut by manually aligning the cutting position with the cutting line. However, manually aligning the cutting position with the cutting line poses a safety hazard of cutting one's fingers. If it is necessary to cut the middle area of ​​the paper, there may be cases where the cut is not made in place, resulting in low cutting precision. Summary of the Invention

[0004] This invention provides an automatic paper cutting device and control method, which solves the technical problems of aligning the paper cutting position with the cutting line manually, which poses a safety hazard of cutting fingers, and the possibility of incomplete cutting when cutting the middle area of ​​the paper, resulting in low cutting accuracy.

[0005] The first aspect of the present invention provides an automatic paper cutting device, comprising a cutting platform, an installation platform, a transport mechanism, a cutting positioning system, a paper cutter, and a processor;

[0006] The cutting platform is fixedly connected to the mounting platform via a support column, and the cutting platform is used to place paper.

[0007] The installation platform is equipped with the cutting and positioning system, which is used to collect platform images for preprocessing and determine the paper position information and the movement information associated with the paper cutting area.

[0008] The transport mechanism includes a movable magnetic attraction component and a first magnet;

[0009] The movable magnetic suction component is mounted on the mounting platform;

[0010] The first magnet is disposed inside the cutting platform;

[0011] The movable magnetic suction component is used to press the paper firmly in conjunction with the first magnet according to the paper position information, and to move on the cutting platform according to the movement information;

[0012] Paper cutters are provided on all sides of the installation platform, and the paper cutters are used to cut paper.

[0013] The processor is located inside the installation platform;

[0014] The movable magnetic suction component, the cutting positioning system, and the paper cutter are all communicatively connected to the processor.

[0015] Optionally, the movable magnetic assembly includes a first movable rod and a second movable rod;

[0016] The first movable rod has a U-shaped structure;

[0017] The first movable rod is slidably connected to the lower end face of the mounting platform;

[0018] The first movable rod is used to move the movable magnetic assembly back and forth;

[0019] The second movable rod is installed on the horizontal part of the first movable rod and is slidably connected to the first movable rod;

[0020] The second movable rod is used to move the movable magnetic component left and right.

[0021] Optionally, the second movable rod includes a slider, a first electric actuator, and a magnetic attractor;

[0022] One end of the first electric actuator is slidably connected to a slide rail disposed on the horizontal part of the first movable rod via the slider;

[0023] The other end of the first electric actuator is provided with the magnetic suction element;

[0024] The magnetic suction component is used to press the paper firmly in conjunction with the first magnet;

[0025] The magnetic attractor includes five second magnets and two connecting rods;

[0026] The second magnet is provided at both ends of the connecting rod;

[0027] The two connecting rods intersect, and the intersection point of the two connecting rods is provided with the second magnet.

[0028] Optionally, the cropping positioning system includes an image acquisition module, an image processing module, and a region coordinate module that are sequentially connected in communication.

[0029] The image acquisition module is used to acquire platform images of the cropping platform;

[0030] The image processing module is used to extract the paper image from the platform image and perform preprocessing to determine the cutting area;

[0031] The region coordinate module is used to obtain the coordinates of the edge points of the paper image to generate paper position information, and to obtain the coordinates of the edge points of the cutting area and generate movement information.

[0032] Optionally, the image processing module includes a paper extraction submodule, an image recognition model submodule, and a target localization submodule that are connected in sequence via communication.

[0033] The paper extraction submodule is used to extract paper images from the platform image;

[0034] The image recognition model submodule is used to input the paper image into a pre-trained image recognition model for image recognition and output the target object;

[0035] The target positioning submodule is used to generate a rectangular box containing the image outline of the target object on the paper image, and use the rectangular box as the cropping area.

[0036] Optionally, the cutting platform includes a support platform and legs;

[0037] The interior of the support platform is a hollow structure;

[0038] The internal height of the support platform is greater than the height of the first magnet, and the height difference between the internal height of the support platform and the height of the first magnet is less than the preset standard height difference.

[0039] The foundation includes a foundation seat and a foundation plate;

[0040] The support base has a U-shaped structure;

[0041] The support plate and the support base are detachably connected;

[0042] The support plate is made of transparent acrylic material;

[0043] The lower end face of the support platform is provided with multiple support legs.

[0044] Optionally, it also includes an infrared sensing grating module;

[0045] The infrared sensing grating module is communicatively connected to the processor;

[0046] The infrared sensing grating module includes a red grating bracket, an infrared light emitter, and an infrared light receiver;

[0047] The support leg is equipped with the red grating bracket;

[0048] The two adjacent legs are respectively equipped with the infrared emitter and the infrared receiver via the red grating bracket.

[0049] Optionally, the support platform is a rectangular structure;

[0050] The four corners of the upper surface of the support platform are fixedly connected to the installation platform by support columns;

[0051] The paper cutter is located between each pair of support columns, and the diameter of the paper cutter is smaller than the distance between each pair of support columns.

[0052] Optionally, the paper cutter is mounted on the periphery of the mounting platform via a second electric actuator;

[0053] The second electric actuator is used to realize the lifting and lowering movement of the paper cutter;

[0054] The cutting part of the paper cutter is a beveled blade, and the beveled blade is inclined at a preset angle to the horizontal direction of the cutting platform;

[0055] The periphery of the support platform is provided with cutting grooves that are adapted to the bevel cutting blade.

[0056] A second aspect of the present invention provides a control method for the aforementioned automatic paper cutting device, comprising:

[0057] The processor responds to the cutting request, and the paper is preprocessed by the cutting positioning system to determine the paper position information and the movement information associated with the paper cutting area.

[0058] Based on the paper position information, the paper is pressed firmly by moving the magnetic suction component in conjunction with the first magnet;

[0059] According to the preset cutting sequence and movement information, the paper is moved to the four edges of the cutting platform in sequence, so that the edge of the paper cutting area is aligned with the edge of the cutting platform. The paper protruding from the cutting platform is then cut by the paper cutter to generate the target paper.

[0060] As can be seen from the above technical solutions, the present invention has the following advantages:

[0061] This invention provides an automatic paper cutting device and control method, including a cutting platform, an installation platform, a transport mechanism, a cutting positioning system, a paper cutter, and a processor. The cutting platform is fixedly connected to the installation platform via support columns and is used to hold paper. The installation platform is equipped with a cutting positioning system, which is used to acquire platform images for preprocessing and determine the paper position information and the movement information associated with the paper's cutting area. The transport mechanism includes a moving magnetic component and a first magnet. The moving magnetic component is installed on the installation platform. The first magnet is disposed inside the cutting platform. The moving magnetic component is used to cooperate with the first magnet according to the paper position information. The paper is pressed firmly and moved on the cutting platform according to the movement information; paper cutters are set on all sides of the mounting platform to cut the paper; the processor is set inside the mounting platform; the moving magnetic suction component, the cutting positioning system and the paper cutters are all communicatively connected to the processor; this invention solves the technical problems of manually aligning the paper cutting position with the cutting line, which poses a safety hazard of cutting fingers, and the possibility of incomplete cutting when cutting the middle area of ​​the paper, resulting in low cutting accuracy; this invention can automatically perform the paper cutting function, preventing accidental finger injury, and allows users to choose the cutting area for more accurate cutting. Attached Figure Description

[0062] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0063] Figure 1 This is a schematic diagram of the structure of an automatic paper cutting device according to an embodiment of the present invention;

[0064] Figure 2 This is a schematic diagram of an automatic paper cutting device according to an embodiment of the present invention without a paper cutter installed;

[0065] Figure 3 This is a schematic diagram of the structure of the second moving rod according to an embodiment of the present invention;

[0066] Figure 4 This is a top view of the second moving rod according to an embodiment of the present invention;

[0067] Figure 5 This is a bottom view of the second moving rod according to an embodiment of the present invention;

[0068] Figure 6 This is a schematic diagram of an infrared grating formed by an infrared light emitter and an infrared light receiver in operation according to an embodiment of the present invention;

[0069] Figure 7 This is a flowchart illustrating the steps of a control method applied to an automatic paper cutting device according to an embodiment of the present invention;

[0070] The meanings of the reference numerals in the attached figures are as follows:

[0071] 1. Support platform; 2. Support leg; 3. First magnet; 4. Paper cutter; 5. Cutting positioning system; 6. Second moving rod; 7. First moving rod; 8. Infrared sensing grating module; 9. Support column; 10. Infrared light emitter; 11. Infrared light receiver; 12. Slider; 13. First electric push rod; 14. Magnetic suction component. Detailed Implementation

[0072] This invention provides an automatic paper cutting device and control method to solve the technical problems of aligning the paper cutting position with the cutting line manually, which poses a safety hazard of cutting fingers, and the possibility of incomplete cutting when cutting the middle area of ​​the paper, resulting in low cutting accuracy.

[0073] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0074] Please see Figures 1-2 The present invention provides an automatic paper cutting device, including a cutting platform, an installation platform, a transport mechanism, a cutting positioning system 5, a paper cutter 4, and a processor;

[0075] The cutting platform is fixedly connected to the mounting platform via support column 9, and the cutting platform is used to hold paper.

[0076] The installation platform is equipped with a cutting and positioning system 5, which is used to collect platform images for preprocessing and determine the paper position information and the movement information associated with the paper cutting area.

[0077] The transport mechanism includes a movable magnetic attraction component and a first magnet 3;

[0078] The movable magnetic assembly is installed on the mounting platform;

[0079] The first magnet 3 is located inside the cutting platform;

[0080] The movable magnetic suction component is used to press the paper firmly in conjunction with the first magnet 3 according to the paper position information, and to move on the cutting platform according to the movement information;

[0081] Paper cutters 4 are installed around the installation platform. Paper cutters 4 are used to cut paper.

[0082] The processor is located inside the installation platform;

[0083] The movable magnetic suction component, the cutting positioning system 5, and the paper cutter 4 are all connected in communication with the processor.

[0084] It should be noted that the processor is a Central Processing Unit (CPU), which is located inside the mounting platform. The mounting platform has a rectangular structure. The transport mechanism is used to press the paper onto the cutting platform and move it. The transport mechanism includes a moving magnetic suction component and a first magnet 3. The moving magnetic suction component is installed on the lower end face of the mounting platform, and the first magnet 3 is installed inside the cutting platform. The mounting platform is equipped with a cutting positioning system 5, which is used to acquire platform images for preprocessing and determine the cutting area of ​​the paper.

[0085] In one example of the present invention, when the processor receives and responds to a cutting request, it performs preprocessing through the cutting positioning system 5 to determine the paper's position information. The paper is then moved to a position directly above the paper placed on the upper surface of the cutting platform via a movable magnetic suction component. The movable magnetic suction component moves downwards to press the paper down. Simultaneously, a first magnet 3 installed inside the cutting platform, under the magnetic force of the movable magnetic suction component, moves to a position directly below the paper, cooperating with the movable magnetic suction component to press the paper firmly. A preset cutting sequence, i.e., a pre-defined sequence, is set according to actual needs, for example, starting from the left. The paper is cut clockwise. First, according to the preset cutting sequence, the paper is moved to one edge of the platform using the moving magnetic component. It should be noted that the cutting area is a rectangular frame. Based on the cutting area of ​​the paper, one side of the cutting area is aligned with the edge line of the platform. At this time, the part of the paper to be cut off is suspended outside the platform. The paper cutter 4 is used to cut along the edge of the cutting area, that is, the edge of the platform, thereby cutting off the suspended part of the paper. The remaining three sides of the rectangular frame are cut in turn to obtain the cut target paper.

[0086] Please see Figure 1 and Figure 2 The present invention provides an automatic paper cutting device, wherein the movable magnetic suction component includes a first movable rod 7 and a second movable rod 6;

[0087] The first moving rod 7 has a U-shaped structure;

[0088] The first movable rod 7 is slidably connected to the lower end face of the installation platform;

[0089] The first movable rod 7 is used to move the magnetic suction assembly back and forth;

[0090] The second movable rod 6 is installed on the horizontal part of the first movable rod 7 and is slidably connected to the first movable rod 7;

[0091] The second moving rod 6 is used to move the magnetic suction assembly left and right.

[0092] It should be noted that the movable magnetic assembly includes a first movable rod 7 and a second movable rod 6. The first movable rod 7 has a U-shaped structure. A sliding component is provided at the connection between the first movable rod 7 and the lower end face of the mounting platform. The sliding component can be in the form of a slider 12 and a slide rail, or other sliding forms, as long as it enables the first movable rod 7 to move back and forth on the lower end face of the mounting platform. The second movable rod 6 is installed on the horizontal part of the first movable rod 7. Since the first movable rod 7 has a U-shaped structure, that is, it is divided into two ends of a horizontal part with vertical parts, thus forming a U-shaped rod. The second movable rod 6 is slidably connected to the rod body of the horizontal part. The second movable rod 6 can move left and right on the first movable rod 7. That is, by setting the first movable rod 7 and the second movable rod 6, the movable magnetic assembly can move back and forth and left and right.

[0093] Please see Figures 3-5 The present invention provides an automatic paper cutting device, wherein the second moving rod 6 includes a slider 12, a first electric push rod 13 and a magnetic suction element 14;

[0094] One end of the first electric actuator 13 is slidably connected to the slide rail provided on the horizontal part of the first moving rod 7 via the slider 12;

[0095] A magnetic suction element 14 is provided at the other end of the first electric actuator 13;

[0096] The magnetic suction component 14 is used to press the paper firmly in conjunction with the first magnet 3;

[0097] The magnetic component 14 includes five second magnets and two connecting rods;

[0098] A second magnet is provided at each end of the connecting rod;

[0099] The two connecting rods intersect, and a second magnet is provided at the intersection of the two connecting rods.

[0100] It should be noted that the second moving rod 6 includes a slider 12, a first electric push rod 13 and a magnetic suction member 14. That is, a slide rail is provided on the horizontal part of the first moving rod 7, which is slidably connected to the slider 12. One end of the first electric push rod 13 is connected to the slider 12, and the other end of the first electric push rod 13 is provided with a magnetic suction member 14. The magnetic suction member 14 is used to cooperate with the first magnet 3 to press the paper.

[0101] It is worth mentioning that you should refer to Figure 5 The magnetic suction component 14 includes five second magnets and two connecting rods; each end of the connecting rod is provided with a second magnet; the two connecting rods intersect, and a second magnet is provided at the intersection point of the two connecting rods. The magnetic suction component 14 is configured as a pentagonal structure to maximize the coverage of the paper surface, ensuring that the paper is not affected by wind during movement and thus does not shift, smoothly transporting the paper to the edge of the cutting platform, enabling high-precision cutting.

[0102] Furthermore, the connecting rod is made of magnetic material, which can increase the magnetic attraction of the magnetic component 14, and better attract the first magnet 3, thereby pressing the paper more firmly.

[0103] Please see Figures 1-6 The present invention provides an automatic paper cutting device, wherein the cutting positioning system 5 includes an image acquisition module, an image processing module and an area coordinate module that are sequentially connected in communication.

[0104] The image acquisition module is used to acquire platform images of the cropping platform;

[0105] The image processing module is used to extract paper images from platform images and perform preprocessing to determine the cutting area;

[0106] The region coordinate module is used to obtain the coordinates of the edge points of the paper image to generate paper position information, and to obtain the coordinates of the edge points of the cutting area and generate movement information.

[0107] It should be noted that the image acquisition module is used to acquire images of the cutting platform. This module can be a camera, or any device capable of image acquisition. The image processing module extracts the paper image from the platform image and performs preprocessing to determine the cutting area. The area coordinate module obtains the coordinates of the edge points of the paper image to generate paper position information, and obtains the coordinates of the edge points of the cutting area to generate movement information. This is a standard coordinate position transformation, which will not be elaborated further.

[0108] Please see Figures 1-6 The present invention provides an automatic paper cutting device, wherein the image processing module includes a paper extraction submodule, an image recognition model submodule, and a target positioning submodule that are connected in sequence via communication.

[0109] The paper extraction submodule is used to extract paper images from platform images;

[0110] The image recognition model submodule is used to input paper images into a pre-trained image recognition model for image recognition and output the target object.

[0111] The target positioning submodule is used to generate a rectangular bounding box containing the image outline for the target object on the paper image, and use the rectangular bounding box as the cropping area.

[0112] It should be noted that the paper extraction submodule is used to extract paper images from the platform image. It can use the image template method, that is, to identify the paper image by comparing the target image template.

[0113] It's worth mentioning that the paper extraction submodule is used to extract paper images from platform images, and can also identify paper outlines using edge detection, contour extraction, and contour filtering; the specific extraction steps are as follows:

[0114] The Canny edge detection algorithm is used to detect edges in the platform image;

[0115] Based on the edge image, the image contour is extracted using a contour extraction algorithm (the findContours function in OpenCV);

[0116] The extracted outlines are screened and filtered to remove papers that do not meet the preset paper screening conditions.

[0117] Among them, the preset paper selection criteria include the outline of a standard paper shape;

[0118] The preset paper selection criteria can also include features such as area, perimeter, aspect ratio, and paper shape.

[0119] The image recognition model submodule is used to input paper images into a pre-trained image recognition model for image recognition and output the target object.

[0120] It is worth mentioning that the training process of the image recognition model is as follows:

[0121] 1. Baseline supervised object detection: After acquiring the image, the image is divided into 9*9 grids. Each grid predicts two BOXes (BOX1 and BOX2). The recognition only needs to be divided into two categories: paper and images on the paper. The Faster-RCNN() framework, which currently has the best performance, is used for object recognition, and finally a 9×9×14 initial image data is obtained.

[0122] 2. Based on the SBIR (sketch-based image retrieval) framework: Using the image data obtained in the first step, the image recognition model trained using the SBIR framework is compared with feature values ​​to obtain a preliminary classification. (For simple, single lines, there is no need to treat them as objects to be recognized).

[0123] 3. Weakly Supervised Object Detection: To avoid collecting a large number of bounding box annotations, weakly supervised object detection is used—determining whether an object category exists. Image recognition models only need to determine whether a category exists in the image data; no classification is required.

[0124] The target positioning submodule is used to generate a rectangular box containing the image outline for the target object on the paper image, and use the rectangular box as the cropping area;

[0125] It should be noted that, based on the target object output by the image recognition model, the input paper image is marked, that is, a rectangular box containing the image outline is generated for the image class on the paper, and this rectangular box is the cropping area.

[0126] It is worth mentioning that the image processing module also includes an image preprocessing submodule.

[0127] The image preprocessing submodule is used to preprocess paper images. Preprocessing includes operations such as grayscale conversion, smoothing filtering, and edge enhancement to reduce image noise and enhance image contrast.

[0128] Please see Figures 1-6 The present invention provides an automatic paper cutting device, wherein the cutting platform includes a support platform 1 and a support leg 2;

[0129] The interior of the foundation 1 is a hollow structure;

[0130] The internal height of the base 1 is greater than the height of the first magnet 3, and the height difference between the internal height of the base 1 and the height of the first magnet 3 is less than the preset standard height difference.

[0131] Foundation 1 includes foundation seat and foundation plate;

[0132] The foundation base has a U-shaped structure;

[0133] The bearing plate and the bearing platform are detachably connected;

[0134] The support plate is made of transparent acrylic material;

[0135] Multiple support legs 2 are provided on the lower end face of the foundation 1.

[0136] It should be noted that the interior of the support platform 1 is a hollow structure. The internal height of the support platform 1 is greater than the height of the first magnet 3, and the height difference between the internal height of the support platform 1 and the height of the first magnet 3 is less than the preset standard height difference. This can be understood as the internal height of the support platform 1 being 1-2 cm higher than the first magnet 3, with the preset standard height difference being 1-2 cm, so that the first magnet 3 can move within the support platform 1. If the internal height of the support platform 1 is greater than the preset standard height difference, resulting in a certain height distance between the first magnet 3 and the upper surface of the support platform 1, it will affect the magnetic attraction between the magnetic suction component 14 and the first magnet 3, and the effect of pressing the paper cannot be achieved.

[0137] It is worth mentioning that the support plate is made of transparent acrylic material; the thickness of the transparent acrylic support plate is 3-4mm, which has sufficient strength and stability to withstand the stress and pressure during the working process. The transparency of the acrylic plate at this thickness is relatively clear, which is more conducive to the staff observing the internal magnetic attraction. The support platform 1 includes a support base and a support plate; the support base has a U-shaped structure; the support plate and the support base are detachably connected; since the magnetic attraction component 14 presses the paper and moves on the support plate, some scratches will appear, which will affect the staff's observation and the aesthetics of the platform. At the same time, the detachable connection structure makes it easy for the staff to replace the support plate with a new one without replacing the whole thing, saving costs.

[0138] Please see Figure 1 , Figure 2 and Figure 6 The automatic paper cutting device provided by the present invention also includes an infrared sensing grating module 8;

[0139] The infrared sensing grating module 8 is connected to the processor for communication.

[0140] The infrared sensing grating module 8 includes a red grating bracket, an infrared light emitter 10, and an infrared light receiver 11;

[0141] A red light grid bracket is installed on the support leg 2;

[0142] The two adjacent legs 2 are respectively equipped with an infrared emitter 10 and an infrared receiver 11 via a red grating bracket.

[0143] It should be noted that the infrared sensing grating module 8 includes a red grating bracket, an infrared light emitter 10, and an infrared light receiver 11. The red grating bracket is installed on the support leg 2. The infrared light emitter 10 and infrared light receiver 11 are respectively mounted on the red grating bracket of two adjacent support legs 2. For example, four support legs 2 are arranged in a rectangular pattern on the lower end face of the platform 1. That is, the first support leg 2 is equipped with an infrared light emitter 10, and the two adjacent support legs 2 are equipped with infrared light receivers 11. The support legs diagonally opposite the first support leg 2 are also equipped with infrared light emitters 10. This forms a square infrared grating matrix around the cutting platform. If a person approaches the equipment and the grating is blocked, the device will automatically pause to prevent accidents caused by the cutting shears.

[0144] In another example of the present invention, each support leg 2 can be equipped with an infrared light emitter 10 and an infrared light receiver 11, thereby achieving the formation of a square infrared grating matrix around the cutting platform, while the two opposite support legs 2 also form infrared gratings. That is, there are also two intersecting infrared gratings inside the square infrared grating matrix. This avoids the situation where the infrared sensing grating module 8 is only activated when there are workers performing maintenance at the bottom of the cutting platform, and cannot detect that there are also personnel inside. This further increases the grating range and improves safety.

[0145] Please see Figures 1-5 The present invention provides an automatic paper cutting device, wherein the support platform 1 is a rectangular structure;

[0146] The four corners of the upper surface of the foundation 1 are fixedly connected to the installation platform by support columns 9 respectively;

[0147] The paper cutter 4 is located between the two support columns 9, and the diameter of the paper cutter 4 is smaller than the distance between the two support columns 9.

[0148] It should be noted that the support platform 1 is a rectangular structure; the installation platform can also be a rectangular structure. The four corners of the upper surface of the support platform 1 are fixedly connected to the four corners of the installation platform through the support columns 9 respectively; the paper cutter 4 is located between the two support columns 9, and the diameter of the paper cutter 4 is smaller than the distance between the two support columns 9. This can be understood as the diameter of the paper cutter 4 being smaller than the distance between the two support columns 9, so as to avoid the support columns 9 affecting the work of the paper cutter 4.

[0149] Please see Figures 1-5 The present invention provides an automatic paper cutting device, wherein the paper cutting knife 4 is mounted on the periphery of the mounting platform via a second electric push rod;

[0150] The second electric actuator is used to realize the lifting and lowering movement of the paper cutter 4;

[0151] The cutting part of the paper cutter 4 is a beveled blade, and the beveled blade is at a preset angle to the horizontal direction of the cutting platform;

[0152] The periphery of the foundation 1 is provided with cutting grooves that are adapted to the bevel cutting blade.

[0153] It should be noted that the paper cutter 4 is mounted on the periphery of the mounting platform via the second electric push rod. The second electric push rod is connected to the processor and can raise and lower the paper cutter 4. The cutting part of the paper cutter 4 is a beveled blade. The beveled blade is at a preset angle to the horizontal direction of the support 1. The periphery of the support 1 is provided with cutting grooves that are adapted to the beveled blade, which facilitates paper cutting.

[0154] An example of the application of this invention:

[0155] Determine the paper size (common sizes include A1, A2, A3, etc.) based on the collected paper, and obtain the paper's length and width l*w (or directly input the paper's length and width into the processor). Obtain the coordinates of the upper left corner (a, b) and lower right corner (c, d) of the cutting area. Then, the distance of the cutting area from the top of the paper is b*s, from the left is a*s, from the right is (wd)*s, and from the bottom is (lc)*s. A cutting scissor is located around the cutting platform for cutting the paper. Before use, the sharp part of the cutting scissors is lower than the platform height; a gear set or electric actuator can be used to raise and lower the cutting scissors. Above the cutting platform is a movable magnetic component (which can move forward, backward, left, and right). The lower end of the component is a magnetic suction piece 14, which attracts the first magnet 3 inside the cutting platform when powered on. The first magnet 3 is always located in the exact center of the cutting platform. After selecting the cutting area, move the magnetic suction piece 14 to the center of the cutting area using the movable magnetic suction component, and then press down on the magnetic suction component to fix and move the paper. Lift the front cutting scissors, move the paper forward b*s using the magnetic chuck assembly, and lower the cutting scissors to cut; then move the paper back to its original position. Lift the left cutting scissors, move the paper forward a*s using the magnetic chuck assembly, and lower the cutting scissors to cut; then move the paper back to its original position. Lift the rear cutting scissors, move the paper forward (wd)*s using the magnetic chuck assembly, and lower the cutting scissors to cut; then move the paper back to its original position. Lift the right cutting scissors, move the paper forward (lc)*s using the magnetic chuck assembly, and lower the cutting scissors to cut; then move the paper back to its original position and raise the magnetic chuck assembly 0.5cm to move the first magnet 3 to the center of the cutting platform. Finally, raise the magnetic chuck assembly to complete the cutting.

[0156] Please see Figure 7 The present invention provides a control method for an automatic paper cutting device, comprising:

[0157] Step 101: The processor responds to the cutting request and the cutting positioning system 5 collects paper for preprocessing to determine the paper position information and the movement information associated with the paper cutting area.

[0158] Step 102: Based on the paper position information, the paper is pressed firmly by moving the magnetic suction component in conjunction with the first magnet 3.

[0159] Step 103: According to the preset cutting sequence and movement information, move the paper to the four edges of the cutting platform in sequence so that the edge of the paper cutting area is aligned with the edge of the cutting platform. Then, use the paper cutter 4 to cut the paper protruding from the cutting platform to generate the target paper.

[0160] In this embodiment of the invention, when the processor receives and responds to a cutting request, it performs preprocessing through the cutting positioning system 5 to determine the paper's position information. The paper is then moved to a position directly above the paper placed on the upper surface of the cutting platform via a moving magnetic component. The moving magnetic component then moves downwards to press the paper down. Simultaneously, the first magnet 3, installed inside the cutting platform, moves to a position directly below the paper under the magnetic force of the moving magnetic component, cooperating with it to press the paper firmly. A preset cutting sequence, i.e., a pre-defined sequence, is set according to actual needs; for example, starting from the left... Cut the paper in a clockwise direction. First, according to the preset cutting sequence, move the paper to one edge of the platform using the moving magnetic component. It should be noted that the cutting area is a rectangular frame. Align one side of the cutting area with the edge of the platform. At this time, the part of the paper to be cut off is suspended outside the platform. Cut the paper with the paper cutter 4 along the edge of the cutting area, that is, the edge of the platform, to cut off the suspended part of the paper. Cut the remaining three sides of the rectangular frame in turn to obtain the cut target paper.

[0161] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0162] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0163] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic paper cutting apparatus characterized by comprising: The cutting platform, the installation platform, the conveying mechanism, the cutting positioning system, the paper cutter and the processor are included. The cutting platform is fixedly connected with the installation platform through a supporting column, and is used for placing paper. The installation platform is provided with the cutting positioning system, which is used for collecting platform images for preprocessing, determining paper position information and movement information associated with a cutting area of the paper. The conveying mechanism includes a moving magnetic assembly and a first magnet. The moving magnetic assembly is installed on the installation platform. The first magnet is arranged in the interior of the cutting platform. The moving magnetic assembly is used for pressing the paper in cooperation with the first magnet according to the paper position information, and moving on the cutting platform according to the movement information. The installation platform is provided with the paper cutter on the periphery, which is used for cutting the paper. The processor is arranged in the interior of the installation platform. The moving magnetic assembly, the cutting positioning system and the paper cutter are in communication connection with the processor.

2. The automatic paper cutting apparatus according to claim 1, wherein The moving magnetic assembly includes a first moving rod and a second moving rod. The first moving rod is in the shape of a U. The first moving rod is in sliding connection with the lower end surface of the installation platform. The first moving rod is used for realizing the forward and backward movement of the moving magnetic assembly. The second moving rod is installed on the horizontal part of the first moving rod and is in sliding connection with the first moving rod. The second moving rod is used for realizing the left and right movement of the moving magnetic assembly.

3. The automatic paper cutting apparatus according to claim 2, wherein The second moving rod includes a sliding block, a first electric push rod and a magnetic piece. One end of the first electric push rod is in sliding connection with a sliding rail arranged on the horizontal part of the first moving rod through the sliding block. The other end of the first electric push rod is provided with the magnetic piece. The magnetic piece is used for pressing the paper in cooperation with the first magnet. The magnetic piece includes five second magnets and two connecting rods. The two ends of the connecting rod are respectively provided with the second magnet. The two connecting rods intersect, and the intersection of the two connecting rods is provided with the second magnet.

4. The automatic paper cutting apparatus according to claim 1, wherein The cutting positioning system includes an image collection module, an image processing module and an area coordinate module which are in communication connection. The image collection module is used for collecting platform images of the cutting platform. The image processing module is used for extracting paper images from the platform images and preprocessing, and determining a cutting area. The area coordinate module is used for obtaining the coordinates of edge points of the paper images to generate paper position information, and obtaining the coordinates of edge points of the cutting area to generate movement information.

5. The automatic paper cutting apparatus according to claim 4, wherein The image processing module includes a paper extraction sub-module, an image recognition model sub-module and a target positioning sub-module which are in communication connection. The paper extraction sub-module is used for extracting paper images from the platform images. The image recognition model sub-module is used for inputting the paper images into a pre-trained image recognition model for image recognition, and outputting a target object. The target positioning sub-module is used for generating a rectangular box containing an image contour for the target object on the paper images, and taking the rectangular box as a cutting area.

6. The automatic paper cutting apparatus according to claim 1, wherein The cutting platform comprises a bearing platform and a supporting leg; The interior of the bearing platform is a hollow structure; The interior height of the bearing platform is greater than the height of the first magnet, and the height difference between the interior height of the bearing platform and the height of the first magnet is less than a preset standard height difference; The bearing platform comprises a bearing platform seat and a bearing plate; The bearing platform seat is a V-shaped structure; The bearing plate is detachably connected with the bearing platform seat; The bearing plate is made of acrylic transparent material; The lower end surface of the bearing platform is provided with a plurality of supporting legs.

7. The automatic paper cutting apparatus according to claim 6, wherein Further comprising an infrared induction grating module; The infrared induction grating module is in communication connection with the processor; The infrared induction grating module comprises a red grating support, an infrared light emitter and an infrared light receiver; The red grating support is arranged on the supporting leg; The infrared light emitter and the infrared light receiver are respectively mounted on the red grating support of adjacent two supporting legs.

8. The automatic paper cutting apparatus according to claim 6, wherein The bearing platform is a rectangular structure; The upper end surface of the bearing platform is fixedly connected with the mounting platform through four supporting columns respectively; The paper cutter is located between two supporting columns, and the diameter of the paper cutter is less than the distance between two supporting columns.

9. The automatic paper cutting apparatus according to claim 8, wherein The paper cutter is mounted on the circumferential side of the mounting platform through a second electric push rod; The second electric push rod is used to realize the lifting movement of the paper cutter; The cutting part of the paper cutter is an oblique cutting blade, and the oblique cutting blade and the horizontal direction of the cutting platform form a preset inclination angle; The circumferential side of the bearing platform is provided with a cutting groove matched with the oblique cutting blade.

10. A control method applied to the automatic paper cutting apparatus according to any one of claims 1 to 9, characterized in that, It comprises: Through the processor, the paper is preprocessed by the cutting positioning system to determine the paper position information and the movement information associated with the paper cutting area; According to the paper position information, the paper is compressed by the moving magnetic assembly cooperating with the first magnet; According to the preset cutting sequence and the movement information, the paper is moved to the four edges of the cutting platform in turn, so that the edges of the paper cutting area are aligned with the edges of the cutting platform, and the paper protruding from the cutting platform is cut by the paper cutter to generate the target paper.

Images