Paper folding device and state monitoring method thereof

Abstract

The invention discloses a paper folding device and a state monitoring method thereof, and relates to the technical field of automatic paper folding, the paper folding device is applied to a main machine frame, a paper feeding bin mechanism, a paper feeding mechanism, a paper guiding mechanism, a paper folding mechanism and a paper discharging mechanism, to-be-folded paper is put into the paper feeding bin mechanism, the paper feeding mechanism brings the paper into the paper guiding mechanism, and the paper discharging mechanism conveys the paper into the paper guiding mechanism; according to the state monitoring method, a sound collecting mechanism is used for collecting paper, then a leading mechanism brings the paper into a paper folding mechanism, and after the paper is folded for several times, a paper discharging mechanism takes out the folded paper, so that automatic operation of the paper is achieved. The state monitoring method comprises the steps that according to the collecting time length of the sound collecting mechanism, it is judged that an abnormal first abnormal block exists in the paper folding device; the abnormal probability degree of the first abnormal block is determined based on the analysis of the quality judgment image shot by the folded paper in the same time section, and whether the abnormal alarm of the paper folding device is performed or not is determined based on the abnormal probability degree, so that the damage caused by the abnormity of the paper folding device is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of automated paper folding, and in particular to a paper folding device and a state monitoring method thereof. Background Art

[0002] In the field of product packaging, it is usually necessary to put some paper materials or instructions into the packaging box to provide an introduction to the relevant attributes of the product. Since some paper materials or instructions are relatively large in size, they need to be folded before they can be put into the packaging box. For products with less demand, it is completely possible to manually fold the paper materials or instructions to reduce their size. However, if the product has a large demand and has strict specifications, such as medicines, it is necessary to fold the paper materials in a more efficient and more standardized way. Therefore, there is an urgent need for an origami device that can replace manual folding of paper materials. Summary of the invention

[0003] The object of the present invention is to provide a paper folding device which is efficient and can fold paper in a more standard manner.

[0004] In some embodiments of the present application, a paper folding device is disclosed, comprising:

[0005] Main frame;

[0006] An upper paper bin mechanism, which is arranged on the side of the main frame and is used to put in the paper to be folded;

[0007] A paper feeding mechanism, which is arranged inside the main frame and opposite to the upper paper storage mechanism, and is used to bring the paper to be folded in the upper paper storage mechanism into the paper feeding mechanism;

[0008] A paper guiding mechanism, which is arranged inside the main frame and connected to the paper feeding mechanism, and is used to guide the paper to be folded entering from the paper feeding mechanism;

[0009] A paper folding mechanism, which is arranged inside the main frame and connected to the paper guiding mechanism, and is used to fold the paper to be folded;

[0010] The paper discharging mechanism is arranged inside the main frame and connected to the paper folding mechanism, and is used for discharging the folded paper.

[0011] In some embodiments of the present application, the paper feeding mechanism includes:

[0012] A paper sheet with air blowing is arranged inside the main frame, and a plurality of air blowing holes are arranged on the side of the paper sheet with air blowing, and the air blowing holes are connected to the air valve assembly, and are used to blow away the paper sheets to be folded in the upper paper bin mechanism;

[0013] A paper board with an air blowing shield is arranged on the inner side of the main frame, and a plurality of air blowing holes are arranged on the side of the paper board with an air blowing shield, and the air blowing holes are connected to the air valve assembly, and are used to blow away the paper to be folded in the upper paper bin mechanism;

[0014] The rolling paper suction assembly has end gears at both ends, is arranged on the inner side of the main frame, and has a paper feeding gap between it and the paperboard with air blowing. The side of the rolling paper suction assembly is provided with a plurality of paper suction holes, and the paper suction holes are connected to the air valve assembly. The side of the main frame is provided with an arc opening corresponding to the rolling paper suction assembly;

[0015] An arc-shaped rack is arranged at a position on the side of the main frame corresponding to the arc-shaped opening, and the end gear is meshed with the arc-shaped rack;

[0016] a camshaft rotatably connected to a side portion of the main frame;

[0017] A rolling connecting plate, two ends of which are respectively connected to the camshaft and the rolling paper suction assembly.

[0018] In some embodiments of the present application, a gas valve assembly is also included, and the gas valve assembly includes:

[0019] An upper spindle, rotatably connected to the inner side of the main frame;

[0020] A plurality of air source conversion blocks are arranged on the side of the upper spindle, including a first communication port and a second communication port, wherein the first communication port is connected to an external air pump, and the second communication port is connected to the paper feeding mechanism;

[0021] A plurality of gas distribution plates, the gas distribution plates are sleeved on the side of the upper spindle and arranged on the side of the gas source conversion block, the side of the phased plate is provided with a plurality of gas distribution ports, the gas distribution ports are connected with the first communication port or the second communication port;

[0022] A plurality of friction discs, wherein the friction discs are sleeved on the side of the upper spindle and arranged on the side of the air distributor, and the side of the friction discs is provided with arc-shaped keyways for connecting different air distributor ports;

[0023] A positioning plate is fixed to the side of the upper spindle, and a plurality of spring steel balls are arranged on the side of the positioning plate. The spring steel balls are connected to the side of the friction plate so that the friction plate is attached to the side of the air distributor plate.

[0024] In some embodiments of the present application, the paper guiding mechanism includes:

[0025] A paper support roller, the paper support roller is rotatably connected to the inner side of the main frame and docked with the paper feeding mechanism;

[0026] A plurality of segmented rubber rollers, wherein the segmented rubber rollers are rotatably connected to the inner side of the main frame and are arranged opposite to the paper supporting rollers, and a paper passing gap is left between the segmented rubber rollers and the paper supporting rollers;

[0027] A clamping guide rail, the clamping guide rail is arranged on the inner side of the main frame;

[0028] A plurality of driven rubber wheels are rotatably connected to the inner side of the main frame and are arranged opposite to the pressing guide rail. A paper passing gap is left between the driven rubber roller and the pressing guide rail.

[0029] In some embodiments of the present application, the paper folding mechanism includes:

[0030] A plurality of paper folding roller groups, wherein the paper folding roller groups include a first paper folding rubber roller and a second paper folding rubber roller, wherein the first paper folding rubber roller and the second paper folding rubber roller are arranged opposite to each other with a paper passing gap in between;

[0031] A plurality of folding paper racks are provided between the folding roller groups, and the ends of the folding paper racks are bent toward the paper passing gap of the folding roller groups to guide the paper to be folded into the folding paper racks to complete a folding action.

[0032] In some embodiments of the present application, a state monitoring method for an origami device is also disclosed, and the state monitoring method includes:

[0033] Establish status monitoring map;

[0034] A virtual main body three-dimensional simulation structure is constructed in the state monitoring map for the origami device, and a virtual component three-dimensional simulation structure is configured at a corresponding position of the virtual main body three-dimensional simulation structure based on the preset position of the component requiring attention on the origami device;

[0035] According to the preset sound collection point arrangement requirements, a plurality of sound collection mechanisms are configured for the origami device, and based on the positions of the sound collection mechanisms relative to the origami device, a plurality of virtual sound collection points are constructed on the state monitoring map;

[0036] According to the length of time that different sound collection mechanisms collect equivalent abnormal sound features, the first abnormal block of the paper-folding device is judged, and based on the position of the first abnormal block relative to the paper-folding device, it is mapped on the three-dimensional simulation structure of the virtual body, and based on the mapping situation, the three-dimensional simulation structure of the virtual component that may have an abnormality is determined, and the component corresponding to the three-dimensional simulation structure of the virtual component that may have an abnormality is recorded as the first possible abnormal component;

[0037] The folded paper folded by the paper folding device is photographed according to a preset photographing rule to generate a number of paper quality judgment images;

[0038] Scan and analyze the paper quality judgment image to determine the paper folding quality at different time points, and evaluate the possible degree of abnormality of the first possible abnormal component based on the paper folding quality;

[0039] If the degree of abnormality of the first possible abnormal component is greater than a preset value, an abnormal alarm of the paper folding device is issued, and an abnormality handling strategy is determined based on the determined first possible abnormal component.

[0040] In some embodiments of the present application, according to the length of time different sound collection mechanisms collect equivalent abnormal sound features, a method for determining a first abnormal block of a paper folding device includes:

[0041] Using a sound collection mechanism to collect a first normal sound feature of the paper folding device in a normal state, and recording the first normal sound feature to generate a normal sound feature state set;

[0042] Compare the current sound features collected by different sound collection mechanisms in real time with the normal sound feature state set in real time, and determine the most suitable first normal sound feature in the normal sound feature state set;

[0043] Compare and analyze the current sound feature with the first normal sound feature, and if the same abnormal sound feature appears for the first time, record the first acquisition time node when the same abnormal sound feature appears for the first time;

[0044] Based on the first collection time nodes corresponding to different sound collection mechanisms, first time differences between different sound collection mechanisms for collecting equivalent abnormal sound features are determined, and an abnormal sound collection array of the sound collection mechanisms is generated;

[0045] A reverse sound scanning circle is configured for different virtual sound collection points on the state monitoring spectrum, wherein the reverse sound scanning circle takes the virtual sound collection point as the center and gradually expands outwards with the sound conduction distance per unit time as the expansion variable;

[0046] Based on the abnormal sound collection array of the sound collection mechanism, the time nodes for starting the reverse sound scanning circle line at different virtual sound collection points are determined until the reverse sound scanning circle lines corresponding to all virtual sound collection points cross at the same time, and the block corresponding to the intersection point is identified as the first abnormal block.

[0047] In some embodiments of the present application, a method for scanning and analyzing a paper quality judgment image to determine the paper folding quality at different time points includes:

[0048] The image setting for paper quality judgment has a scanning analysis dot matrix;

[0049] Scan the corresponding position of the paper quality judgment image based on each scanning analysis point in the scanning analysis dot matrix, and determine a number of scanning analysis points that meet the preset color characteristics, which are recorded as paper mapping points;

[0050] Performing clustering analysis on paper mapping points in the paper quality judgment image, associating a number of paper mapping points whose intervals are less than a preset value, and generating a paper mapping point clustering area;

[0051] Determine the edge of the paper mapping point clustering area to obtain the clustering area edge frame of the paper mapping point clustering area;

[0052] Analyze the vector change gradient between the paper mapping points corresponding to the edge of the clustering area edge frame, and determine the paper mapping point whose vector change gradient is greater than a preset value as the edge turning point of the clustering area edge frame;

[0053] The turning point spacing between edge turning points belonging to the same cluster edge frame is calculated. If the turning point spacing meets the preset standard, the paper quality corresponding to the paper mapping point cluster in the quality judgment image is determined to be qualified.

[0054] In some embodiments of the present application, the method for evaluating the possible degree of abnormality of the first possible abnormal component based on the paper folding quality includes:

[0055] Analyze a preset number of paper judgment images after the equivalent time node of the first possible abnormal component is determined, and determine a first number of paper with qualified paper quality and a second number of paper with unqualified paper quality in each paper judgment image;

[0056] Calculating a qualified reference ratio of the first paper quantity to the second paper quantity, and determining the possible degree of abnormality of the first possible abnormal component in combination with a continuous number of paper judgment images having a qualified reference ratio lower than a preset value;

[0057] The expression for calculating the possible degree of abnormality of the first possible abnormal component is:

[0058]

[0059] Where y is the value corresponding to the degree of abnormality of the first possible abnormal component, k 1 is the conversion coefficient of the abnormal possibility, t is the number of consecutive images of paper judgments whose qualified reference ratio is lower than the preset value, b 1 is the first adjustment constant, x n-1 is the number of the first paper of qualified paper quality in the nth paper judgment image, x n-2 The second paper quantity of the n-th paper in the paper quality determination image is unqualified.

[0060] In some embodiments of the present application, based on the determined first possible abnormal component, the method for determining an abnormality handling strategy includes:

[0061] A component abnormality correspondence table is constructed for each component requiring attention, wherein the component abnormality correspondence table includes a number of component abnormalities, and a specific abnormality handling strategy is configured for each component abnormality;

[0062] The state characteristics of the first possible abnormal component determined are analyzed, the corresponding component abnormality is found in the component abnormality correspondence table, and then an adaptive abnormality handling strategy is determined.

[0063] The present application discloses a paper folding device and a state monitoring method thereof, and relates to the field of automated paper folding technology. The paper folding device is applied with a main frame, an upper paper bin mechanism, a paper feeding mechanism, a paper guiding mechanism, a paper folding mechanism and a paper discharging mechanism. The paper to be folded is put into the upper paper bin mechanism, and the paper feeding mechanism brings the paper into the paper feeding and guiding mechanism, and then the leading mechanism brings the paper into the paper folding mechanism. After the paper is folded several times, the paper discharging mechanism brings out the folded paper, thereby realizing automated operation of the paper. In the state monitoring method, the first abnormal block of the paper folding device is judged by the length of time collected by the sound collecting mechanism, and the possible degree of abnormality of the first abnormal block is determined based on the analysis of the quality judgment image taken of the folded paper in the same time period, and based on the possible degree of abnormality, it is determined whether to issue an abnormal alarm for the paper folding device, thereby effectively avoiding damage caused by the abnormality of the paper folding device.

[0064] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 It is a structural schematic diagram of a paper folding device disclosed in an embodiment of the present application;

[0066] Figure 2 It is a schematic diagram of a vertical cross-sectional structure of a paper folding device disclosed in an embodiment of the present application;

[0067] Figure 3 This is a schematic diagram of the structure of the paperboard separating unit with air blowing disclosed in the embodiments of the present application;

[0068] Figure 4 It is a structural schematic diagram of the rolling paper suction assembly disclosed in the embodiment of the present application;

[0069] Figure 5 It is a schematic diagram of the structure of the gas valve assembly disclosed in the embodiment of the present application;

[0070] Figure 6 This is a method step diagram of a state monitoring method for a paper folding device disclosed in an embodiment of the present application.

[0071] Reference numerals

[0072] 1. Main frame; 2. Paper dividing board with air blowing; 3. Paper blocking board with air blowing; 4. Rolling paper suction assembly; 5. Arc rack; 6. Camshaft; 7. Rolling connecting plate; 8. Upper main shaft; 9. Air source conversion block; 10. First connecting port; 11. Upper paper bin mechanism; 12. Air dividing plate; 13. Friction plate; 14. Positioning plate; 15. Paper supporting roller; 16. Segmented rubber roller; 17. Clamping guide rail; 18. Driven rubber wheel; 19. Paper folding roller group; 20. Paper folding board rack; 21. Spring steel ball. DETAILED DESCRIPTION

[0073] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0074] The following will be combined with the accompanying drawings and specific embodiments to clearly and completely describe the technical solution of the present invention. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and cannot be understood as limiting the scope of protection of the present invention. Those skilled in the art in this field can make some non-essential improvements and adjustments based on the content of the present invention described below. In the present invention, unless otherwise clearly specified and limited, the technical terms used in this application should be the common meanings understood by the technical personnel of the present invention.

[0075] Example:

[0076] The object of the present invention is to provide a paper folding device which is efficient and can fold paper in a more standard manner.

[0077] In some embodiments of the present application, see Figure 1 and Figure 2 , discloses a paper folding device, comprising: a main frame 1, an upper paper bin mechanism 11, a paper feeding mechanism, a paper guiding mechanism, a paper folding mechanism and a paper discharging mechanism.

[0078] The upper paper bin mechanism 11 is arranged on the side of the main frame 1, and is used to put the paper to be folded. The paper feeding mechanism is arranged on the inner side of the main frame 1 and is arranged relative to the upper paper bin mechanism 11, and is used to bring the paper to be folded in the upper paper bin mechanism into the paper bin. The paper guiding mechanism is arranged on the inner side of the main frame 1 and is connected to the paper feeding mechanism, and is used to guide the paper to be folded entering from the paper feeding mechanism. The paper folding mechanism is arranged on the inner side of the main frame 1 and is connected to the paper guiding mechanism, and is used to fold the paper to be folded. The paper discharging mechanism is arranged on the inner side of the main frame 1 and is connected to the paper folding mechanism, and is used to output the folded paper.

[0079] When in use, the paper to be folded is placed into the upper paper bin mechanism 11, and the paper feeding mechanism brings the paper into the paper feeding guide mechanism, and then the leading mechanism brings the paper into the paper folding mechanism. After the paper is folded several times, the paper discharging mechanism brings out the folded paper, thereby realizing the automatic operation of the paper.

[0080] Among them, the upper paper bin mechanism 11 places a certain number of instructions on the bottom plate of the upper paper bin. According to the size of the instructions, the width direction can be adjusted by adjusting the right paper stop guide assembly and the left paper stop guide assembly, and the length direction can be adjusted by the right paper stop shaft assembly and the left paper stop shaft assembly. The adjustment components are equipped with quick adjustment handles that can be efficiently locked without using tools.

[0081] In some embodiments of the present application, see Figure 2 , Figure 3 and Figure 4 The paper feeding mechanism includes: a paper dividing board 2 with air blowing, a paper blocking board 3 with air blowing, a rolling paper suction assembly 4, an arc-shaped rack 5, a cam shaft 6 and a rolling connecting plate 7.

[0082] The paperboard with air blowing 2 is arranged on the inner side of the main frame 1, and a plurality of air blowing holes are arranged on the side of the paperboard with air blowing 2, and the air blowing holes are connected to the air valve assembly, which is used to blow away the paper to be folded in the upper paper bin mechanism 11; the paperboard with air blowing baffle 3 is arranged on the inner side of the main frame 1, and a plurality of air blowing holes are arranged on the side of the paperboard with air blowing 3, and the air blowing holes are connected to the air valve assembly, which is used to blow away the paper to be folded in the upper paper bin mechanism 11; the rolling paper suction assembly 4 is provided with end gears at both ends, which is arranged on the inner side of the main frame 1 and connected to the A paper feeding gap is left between the air-blowing paperboards 2, a plurality of paper suction holes are arranged on the side of the rolling paper suction assembly 4, and the paper suction holes are connected to the air valve assembly, and an arc-shaped opening is arranged on the side of the main frame 1 corresponding to the rolling paper suction assembly 4; the arc-shaped rack 5 is arranged at a position corresponding to the arc-shaped opening on the side of the main frame 1, and the end gear is meshed with the arc-shaped rack 5; the camshaft 6 is rotatably connected to the side of the main frame 1; and the two ends of the rolling connecting plate 7 are respectively connected to the camshaft 6 and the rolling paper suction assembly 4.

[0083] In some embodiments of the present application, see Figure 5 , and also includes an air valve assembly, which includes: an upper main shaft 8, a plurality of air source conversion blocks 9, a plurality of air distribution plates 12 and a positioning plate 14.

[0084] The upper spindle 8 is rotatably connected to the inner side of the main frame 1; the air source conversion block 9 is arranged on the side of the upper spindle 8, including a first connecting port 10 and a second connecting port, the first connecting port 10 is connected to the external air pump, and the second connecting port is connected to the paper feeding mechanism; the air distribution plate 12 is sleeved on the side of the upper spindle 8 and arranged on the side of the air source conversion block 9, and the side of the phased plate is provided with a plurality of air distribution ports, and the air distribution ports are connected with the first connecting port 10 or the second connecting port; the friction plate 13 is sleeved on the side of the upper spindle 8 and arranged on the side of the air distribution plate 12, and the side of the friction plate 13 is provided with an arc keyway for connecting different air distribution ports; the positioning plate 14 is fixed to the side of the upper spindle 8, and the side of the positioning plate 14 is provided with a plurality of spring steel balls 21, and the spring steel balls 21 are connected to the side of the friction plate 13 so that the friction plate 13 is attached to the side of the air distribution plate 12.

[0085] The air valve assembly can be set up in several groups, each group is composed of a friction disc 13, an air distribution disc 12, and a positioning disc 14. The positioning pin on the positioning disc 14 can fit the friction disc 13 together, and the upper end surface of the friction disc 13 can be pressed against the air distribution disc 12 through the four groups of steel ball springs above to ensure air tightness. There is an arc-shaped keyway on the friction disc 13. Through its rotation, the holes on the air distribution disc 12 are opened and closed, thereby realizing air cutting and ventilation at a certain angle. There are threaded holes on the positioning disc 14, which are connected to the upper main shaft 8 through the top screw. The paper folding device is mainly composed of a paper support roller 15. It will complete a working cycle when it rotates one circle, and the paper will be folded once when it rotates a full circle. After the vacuum passes through the air valve, it is connected to the rolling paper suction shaft assembly through a hose. There are 12 groups of holes on the assembly, each group is independent, and can be closed separately according to the width of the paper to avoid waste of vacuum.

[0086] When the rolling paper suction component 4 absorbs the paper at the paper suction position, the paper suction component rotates to absorb the paper and transfer it downward. After each piece of paper is absorbed, the rolling paper suction component 4 will move backward, and the upper paper separation board 2 with air blowing will separate the paper, thereby ensuring that a piece of paper is correctly sucked in each time to avoid double and multiple sheets. There are blowing holes on the paper separation board 2 with air blowing, and its blowing time and angle are controlled by the air valve component. The blowing on the air blowing baffle is also controlled by the air valve component. Its function is to blow and paginate the paper by compressed air when too much paper is stacked. The rotation of the rolling paper suction component 4 is achieved by the meshing of the arc rack 5 and the end gear on the rolling paper suction component 4. The forward and backward movement is achieved through the connection between the left and right rolling connecting plates 7 and the camshaft 6. The camshaft 6 rotates once, and the rolling paper suction component 4 performs work once forward and backward. When the paper is transferred to the paper support roller 15, the rolling paper suction assembly 4 will disconnect the vacuum, and the rotation of the paper support roller 15 will continue to drive the paper to move downward, and the segmented rubber roller 16 will press the paper on the paper support roller 15. The function of the segmented rubber roller 16 is to ensure the smooth movement of the paper and ensure that the paper will not wrinkle and avoid the jam of the paper under high-speed movement. The paper continues to move downward through the driven rubber roller, and after entering the rubber roller, the paper is sent into the folding paper board rack 20.

[0087] In some embodiments of the present application, the paper guiding mechanism includes: a paper supporting roller 15 , a segmented rubber roller 16 , a pressing guide rail 17 and a plurality of driven rubber wheels 18 .

[0088] The paper support roller 15 is rotatably connected to the inner side of the main frame 1 and docked with the paper feeding mechanism; the segmented rubber roller 16 is rotatably connected to the inner side of the main frame 1 and is arranged opposite to the paper support roller 15, and a paper passing gap is left between the segmented rubber roller 16 and the paper support roller 15; the clamping guide rail 17 is arranged on the inner side of the main frame 1; the driven rubber wheel 18 is rotatably connected to the inner side of the main frame 1 and is arranged opposite to the clamping guide rail 17, and a paper passing gap is left between the driven rubber roller and the clamping guide rail 17.

[0089] In some embodiments of the present application, the paper folding mechanism includes: a plurality of paper folding roller groups 19 and a plurality of paper folding paper racks 20.

[0090] The paper folding roller group 19 includes a first paper folding rubber roller and a second paper folding rubber roller, which are arranged opposite to each other with a paper passing gap in between; the paper folding paper rack 20 is arranged between the paper folding roller groups 19, and the end is bent toward the paper passing gap of the paper folding roller group 19 to guide the paper to be folded into the paper folding paper rack 20, completing a paper folding action.

[0091] In some embodiments of the present application, a method for monitoring the state of a paper folding device is also disclosed. Figure 6 , the state monitoring method comprises:

[0092] Step S100, establishing a status monitoring map.

[0093] Step S200, constructing a virtual main body three-dimensional simulation structure for the origami device in the state monitoring map, and configuring a virtual component three-dimensional simulation structure at a corresponding position of the virtual main body three-dimensional simulation structure based on the preset position of the component requiring attention on the origami device.

[0094] Step S300, according to the preset sound collection point arrangement requirements, a plurality of sound collection mechanisms are configured for the paper folding device, and based on the positions of the sound collection mechanisms relative to the paper folding device, a plurality of virtual sound collection points are constructed on the state monitoring map.

[0095] Step S400, based on the length of time that different sound collection mechanisms take to collect equivalent abnormal sound features, determine the first abnormal block of the paper-folding device, and based on the position of the first abnormal block relative to the paper-folding device, map it on the three-dimensional simulation structure of the virtual body, and based on the mapping situation, determine the three-dimensional simulation structure of the virtual component that may have an abnormality, and record the component corresponding to the three-dimensional simulation structure of the virtual component that may have an abnormality as the first possible abnormal component.

[0096] Step S500: photographing the folded paper folded by the paper folding device according to a preset photographing rule to generate a plurality of paper quality judgment images.

[0097] Step S600, scanning and analyzing the paper quality judgment image, determining the paper folding quality at different time nodes, and evaluating the possible degree of abnormality of the first possible abnormal component based on the paper folding quality.

[0098] Step S700: If the degree of abnormality of the first possible abnormal component is greater than a preset value, an abnormal alarm of the paper folding device is issued, and an abnormality handling strategy is determined based on the determined first possible abnormal component.

[0099] In order to facilitate the understanding of the above technical solution, it can be understood by the following technical ideas:

[0100] (1) Step S100 - Establishing a state monitoring map: The goal of this step is to create a state monitoring map of an origami device. The state monitoring map usually includes various sensors and data collection points for monitoring the operating status of the device.

[0101] (2) Step S200 - Virtual body 3D simulation structure: In this step, a virtual body 3D simulation structure is constructed to simulate the structure of the actual origami device. This virtual structure will be used to locate and map the virtual component 3D simulation structure.

[0102] (3) Step S300 - Sound collection mechanism configuration: In this step, a sound collection mechanism is configured on the paper folding device to capture the sound signals generated when the device is running. The location of the sound collection mechanism will correspond to the virtual sound collection point on the status monitoring map.

[0103] (4) Step S400 - Anomaly detection and mapping: The main task of this step is to detect anomalies of the origami device based on the data of the sound collection mechanism. When an anomaly is detected, it is mapped to the virtual main body 3D simulation structure according to the location of the anomaly, and the virtual component 3D simulation structure that may be affected by the anomaly is determined.

[0104] (5) Step S500 - Paper quality photography: In this step, the folded paper is photographed according to a preset rule to generate paper quality judgment images. These images will be used to evaluate the paper folding quality.

[0105] (6) Step S600 - Paper quality analysis and abnormality assessment: Analyze the paper quality image to determine the paper folding quality at different time points. Based on the paper quality, assess the degree of abnormality of the first possible abnormal component.

[0106] (7) Step S700-Abnormal alarm and handling strategy: If the abnormality of the first possible abnormal component exceeds the preset value, the system will trigger an abnormal alarm and formulate an abnormal handling strategy based on the determined abnormal component. This may include operations such as repair, maintenance or shutdown to ensure the normal operation of the device.

[0107] In some embodiments of the present application, according to the length of time different sound collection mechanisms collect equivalent abnormal sound features, a method for determining a first abnormal block of a paper folding device includes:

[0108] In the first step, a sound collection mechanism is used to collect a first normal sound feature of the paper folding device in a normal state, and the first normal sound feature is recorded to generate a normal sound feature state set.

[0109] In the second step, the current sound features collected by different sound collection mechanisms in real time are compared with the normal sound feature state set in real time, and the most suitable first normal sound feature is determined in the normal sound feature state set.

[0110] The third step is to compare and analyze the current sound feature with the first normal sound feature. If the same abnormal sound feature appears for the first time, the first acquisition time node of the first appearance of the same abnormal sound feature is recorded.

[0111] The fourth step is to determine the first time differences between different sound collection mechanisms for collecting equivalent abnormal sound features based on the first collection time nodes corresponding to different sound collection mechanisms, and generate an abnormal sound collection array of the sound collection mechanisms.

[0112] The fifth step is to configure a reverse sound scanning circle for different virtual sound collection points on the status monitoring map. The reverse sound scanning circle takes the virtual sound collection point as the center and gradually expands outward with the sound conduction distance per unit time as the expansion variable.

[0113] The sixth step is to determine the time nodes for starting the reverse sound scanning circle lines at different virtual sound collection points based on the abnormal sound collection array of the sound collection mechanism, until the reverse sound scanning circle lines corresponding to all virtual sound collection points cross at the same time, and identify the block corresponding to the intersection as the first abnormal block.

[0114] In some embodiments of the present application, a method for scanning and analyzing a paper quality judgment image to determine the paper folding quality at different time points includes:

[0115] In the first step, a scanning analysis dot matrix is ​​set for the paper quality judgment image.

[0116] In the second step, the corresponding position of the paper quality judgment image is scanned based on each scanning analysis point in the scanning analysis dot matrix, and a number of scanning analysis points that meet the preset color characteristics are determined and recorded as paper mapping points.

[0117] The third step is to perform clustering analysis on the paper mapping points in the paper quality judgment image, associate a number of paper mapping points whose intervals are less than a preset value, and generate a paper mapping point clustering area.

[0118] The fourth step is to determine the edge of the paper mapping point clustering area to obtain the clustering area edge frame of the paper mapping point clustering area.

[0119] The sixth step is to analyze the vector change gradient between the paper mapping points corresponding to the edge of the clustering area edge frame, and determine the paper mapping points whose vector change gradient is greater than a preset value as the edge turning points of the clustering area edge frame.

[0120] The seventh step is to calculate the turning point spacing between the edge turning points of the same cluster edge frame. If the turning point spacing meets the preset standard, the paper quality corresponding to the paper mapping point cluster in the quality judgment image is determined to be qualified.

[0121] In some embodiments of the present application, the method for evaluating the possible degree of abnormality of the first possible abnormal component based on the paper folding quality includes:

[0122] In the first step, a preset number of paper judgment images after the equivalent time node of the first possible abnormal component is determined are analyzed to determine the first number of paper with qualified paper quality and the second number of paper with unqualified paper quality in each paper judgment image.

[0123] The second step is to calculate the qualified reference ratio of the first paper quantity to the second paper quantity, and determine the possible degree of abnormality of the first possible abnormal component by combining the continuous number of images of several papers whose qualified reference ratio is lower than a preset value.

[0124] The expression for calculating the possible degree of abnormality of the first possible abnormal component is:

[0125]

[0126] Where y is the value corresponding to the degree of abnormality of the first possible abnormal component, k 1 is the conversion coefficient of the abnormal possibility, t is the number of consecutive images of paper judgments whose qualified reference ratio is lower than the preset value, b 1 is the first adjustment constant, x n-1 is the number of the first paper of qualified paper quality in the nth paper judgment image, x n-2 The second paper quantity of the n-th paper in the paper quality determination image is unqualified.

[0127] In some embodiments of the present application, based on the determined first possible abnormal component, the method for determining an abnormality handling strategy includes:

[0128] In the first step, a component abnormality correspondence table is constructed for each component requiring attention. The component abnormality correspondence table includes a number of component abnormalities. For each component abnormality, a specific abnormality handling strategy is configured.

[0129] In the second step, the state characteristics of the first possible abnormal component are analyzed, and the corresponding component abnormality is found in the component abnormality corresponding table, and then an adaptive abnormality handling strategy is determined.

[0130] Through the description of the above implementation methods, those skilled in the art can clearly understand that the present invention can be implemented by hardware, or by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each implementation scenario of the present invention.

[0131] The present application discloses a paper folding device and a state monitoring method thereof, and relates to the field of automated paper folding technology. The paper folding device is applied with a main frame, an upper paper bin mechanism, a paper feeding mechanism, a paper guiding mechanism, a paper folding mechanism and a paper discharging mechanism. The paper to be folded is put into the upper paper bin mechanism, and the paper feeding mechanism brings the paper into the paper feeding and guiding mechanism, and then the leading mechanism brings the paper into the paper folding mechanism. After the paper is folded several times, the paper discharging mechanism brings out the folded paper, thereby realizing automated operation of the paper. In the state monitoring method, the first abnormal block of the paper folding device is judged by the length of time collected by the sound collecting mechanism, and the possible degree of abnormality of the first abnormal block is determined based on the analysis of the quality judgment image taken of the folded paper in the same time period, and based on the possible degree of abnormality, it is determined whether to issue an abnormal alarm for the paper folding device, thereby effectively avoiding damage caused by the abnormality of the paper folding device.

[0132] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A paper folding device, characterized in that: include: Main frame; An upper paper bin mechanism, which is arranged on the side of the main frame and is used to put in the paper to be folded; A paper feeding mechanism, which is arranged inside the main frame and opposite to the upper paper storage mechanism, and is used to bring the paper to be folded in the upper paper storage mechanism into the paper feeding mechanism; A paper guiding mechanism, which is arranged inside the main frame and connected to the paper feeding mechanism, and is used to guide the paper to be folded entering from the paper feeding mechanism; A paper folding mechanism, which is arranged inside the main frame and connected to the paper guiding mechanism, and is used to fold the paper to be folded; The paper discharging mechanism is arranged inside the main frame and connected to the paper folding mechanism, and is used for discharging the folded paper.

2. A paper folding device according to claim 1, characterized in that: The paper feeding mechanism comprises: A paper sheet with air blowing is arranged inside the main frame, and a plurality of air blowing holes are arranged on the side of the paper sheet with air blowing, and the air blowing holes are connected to the air valve assembly, and are used to blow away the paper sheets to be folded in the upper paper bin mechanism; A paper board with an air blowing shield is arranged on the inner side of the main frame, and a plurality of air blowing holes are arranged on the side of the paper board with an air blowing shield, and the air blowing holes are connected to the air valve assembly, and are used to blow away the paper to be folded in the upper paper bin mechanism; The rolling paper suction assembly has end gears at both ends, is arranged on the inner side of the main frame, and has a paper feeding gap between it and the paperboard with air blowing. The side of the rolling paper suction assembly is provided with a plurality of paper suction holes, and the paper suction holes are connected to the air valve assembly. The side of the main frame is provided with an arc opening corresponding to the rolling paper suction assembly; An arc-shaped rack is arranged at a position on the side of the main frame corresponding to the arc-shaped opening, and the end gear is meshed with the arc-shaped rack; a camshaft rotatably connected to a side portion of the main frame; A rolling connecting plate, two ends of which are respectively connected to the camshaft and the rolling paper suction assembly.

3. A paper folding device according to claim 1, characterized in that: Also included is an air valve assembly, the air valve assembly comprising: An upper spindle, rotatably connected to the inner side of the main frame; A plurality of air source conversion blocks are arranged on the side of the upper spindle, including a first communication port and a second communication port, wherein the first communication port is connected to an external air pump, and the second communication port is connected to the paper feeding mechanism; A plurality of gas distribution plates, the gas distribution plates are sleeved on the side of the upper spindle and arranged on the side of the gas source conversion block, the side of the phased plate is provided with a plurality of gas distribution ports, the gas distribution ports are connected with the first communication port or the second communication port; A plurality of friction discs, wherein the friction discs are sleeved on the side of the upper spindle and arranged on the side of the air distributor, and the side of the friction discs is provided with arc-shaped keyways for connecting different air distributor ports; A positioning plate is fixed to the side of the upper spindle, and a plurality of spring steel balls are arranged on the side of the positioning plate. The spring steel balls are connected to the side of the friction plate so that the friction plate is attached to the side of the air distributor plate.

4. A paper folding device according to claim 1, characterized in that: The paper guiding mechanism comprises: A paper support roller, the paper support roller is rotatably connected to the inner side of the main frame and docked with the paper feeding mechanism; A plurality of segmented rubber rollers, wherein the segmented rubber rollers are rotatably connected to the inner side of the main frame and are arranged opposite to the paper supporting rollers, and a paper passing gap is left between the segmented rubber rollers and the paper supporting rollers; A clamping guide rail, the clamping guide rail is arranged on the inner side of the main frame; A plurality of driven rubber wheels are rotatably connected to the inner side of the main frame and are arranged opposite to the pressing guide rail. A paper passing gap is left between the driven rubber roller and the pressing guide rail.

5. The paper folding device according to claim 1, characterized in that: The paper folding mechanism comprises: A plurality of paper folding roller groups, wherein the paper folding roller groups include a first paper folding rubber roller and a second paper folding rubber roller, wherein the first paper folding rubber roller and the second paper folding rubber roller are arranged opposite to each other with a paper passing gap in between; A plurality of folding paper racks are provided between the folding paper roller groups, and the ends of the folding paper racks are bent toward the paper passing gap of the folding paper roller groups to guide the paper to be folded into the folding paper racks to complete a folding action.

6. A method for monitoring the state of a paper folding device, characterized in that: The paper folding device according to any one of claims 1 to 5, wherein the state monitoring method comprises: Establish status monitoring map; Constructing a virtual main body three-dimensional simulation structure in the state monitoring map for the origami device, and configuring a virtual component three-dimensional simulation structure at a corresponding position of the virtual main body three-dimensional simulation structure based on the preset position of the component requiring attention on the origami device; According to the preset sound collection point arrangement requirements, a plurality of sound collection mechanisms are configured for the origami device, and based on the positions of the sound collection mechanisms relative to the origami device, a plurality of virtual sound collection points are constructed on the state monitoring map; According to the length of time that different sound collection mechanisms collect equivalent abnormal sound features, the first abnormal block of the paper-folding device is judged, and based on the position of the first abnormal block relative to the paper-folding device, it is mapped on the three-dimensional simulation structure of the virtual body, and based on the mapping situation, the three-dimensional simulation structure of the virtual component that may have an abnormality is determined, and the component corresponding to the three-dimensional simulation structure of the virtual component that may have an abnormality is recorded as the first possible abnormal component; The folded paper folded by the paper folding device is photographed according to a preset photographing rule to generate a number of paper quality judgment images; Scan and analyze the paper quality judgment image to determine the paper folding quality at different time points, and evaluate the possible degree of abnormality of the first possible abnormal component based on the paper folding quality; If the degree of abnormality of the first possible abnormal component is greater than a preset value, an abnormal alarm of the paper folding device is issued, and an abnormality handling strategy is determined based on the determined first possible abnormal component.

7. The state monitoring method of a paper folding device according to claim 6, characterized in that: According to the length of time different sound collection mechanisms collect the same abnormal sound features, the method for determining the first abnormal block of the paper folding device includes: Using a sound collection mechanism to collect a first normal sound feature of the paper folding device in a normal state, and recording the first normal sound feature to generate a normal sound feature state set; Compare the current sound features collected by different sound collection mechanisms in real time with the normal sound feature state set in real time, and determine the most suitable first normal sound feature in the normal sound feature state set; Compare and analyze the current sound feature with the first normal sound feature, and if the same abnormal sound feature appears for the first time, record the first acquisition time node when the same abnormal sound feature appears for the first time; Based on the first collection time nodes corresponding to different sound collection mechanisms, first time differences between different sound collection mechanisms for collecting equivalent abnormal sound features are determined, and an abnormal sound collection array of the sound collection mechanisms is generated; A reverse sound scanning circle is configured for different virtual sound collection points on the state monitoring spectrum, wherein the reverse sound scanning circle takes the virtual sound collection point as the center and gradually expands outwards with the sound conduction distance per unit time as the expansion variable; Based on the abnormal sound collection array of the sound collection mechanism, the time nodes for starting the reverse sound scanning circle line at different virtual sound collection points are determined until the reverse sound scanning circle lines corresponding to all virtual sound collection points cross at the same time, and the block corresponding to the intersection point is identified as the first abnormal block.

8. The method for monitoring the state of a paper folding device according to claim 6, characterized in that: The method of scanning and analyzing the paper quality judgment image to determine the paper folding quality at different time points includes: The image setting for paper quality judgment has a scanning analysis dot matrix; Scan the corresponding position of the paper quality judgment image based on each scanning analysis point in the scanning analysis dot matrix, and determine a number of scanning analysis points that meet the preset color characteristics, which are recorded as paper mapping points; Performing clustering analysis on paper mapping points in the paper quality judgment image, associating a number of paper mapping points whose intervals are less than a preset value, and generating a paper mapping point clustering area; Determine the edge of the paper mapping point clustering area to obtain the clustering area edge frame of the paper mapping point clustering area; Analyze the vector change gradient between the paper mapping points corresponding to the edge of the clustering area edge frame, and determine the paper mapping point whose vector change gradient is greater than a preset value as the edge turning point of the clustering area edge frame; The turning point spacing between edge turning points belonging to the same cluster edge frame is calculated. If the turning point spacing meets the preset standard, the paper quality corresponding to the paper mapping point cluster in the quality judgment image is determined to be qualified.

9. The state monitoring method of a paper folding device according to claim 8, characterized in that: The method for evaluating the degree of abnormality of the first possibly abnormal component based on the paper folding quality includes: Analyze a preset number of paper judgment images after the equivalent time node of the first possible abnormal component is determined, and determine a first number of paper with qualified paper quality and a second number of paper with unqualified paper quality in each paper judgment image; Calculating a qualified reference ratio of the first paper quantity to the second paper quantity, and determining the possible degree of abnormality of the first possible abnormal component in combination with a continuous number of paper judgment images having a qualified reference ratio lower than a preset value; The expression for calculating the possible degree of abnormality of the first possible abnormal component is: Wherein, y is the value corresponding to the degree of abnormality of the first possible abnormal component, k1 is the conversion coefficient of the degree of abnormality, t is the number of consecutive images of paper judgments whose qualified reference ratio is lower than the preset value, b1 is the first adjustment constant, and x n-1 is the number of the first paper of qualified paper quality in the nth paper judgment image, x n-2 The second paper quantity of the n-th paper in the paper quality determination image is unqualified.

10. The method for monitoring the state of a paper folding device according to claim 6, characterized in that: Based on the determined first possible abnormal component, the method for determining an abnormality handling strategy includes: A component abnormality correspondence table is constructed for each component requiring attention, wherein the component abnormality correspondence table includes a number of component abnormalities, and a specific abnormality handling strategy is configured for each component abnormality; The state characteristics of the first possible abnormal component determined are analyzed, the corresponding component abnormality is found in the component abnormality correspondence table, and then an adaptive abnormality handling strategy is determined.

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