Intelligent cutting system based on machine vision

Abstract

The invention discloses an intelligent cutting system based on machine vision, and belongs to the technical field of cutting, the intelligent cutting system comprises a cutting table, two ends of the upper surface of the cutting table are respectively provided with an n-shaped frame and two groups of guide plates; four groups of guide rail rods are symmetrically and fixedly mounted at the two ends in the n-shaped frame, a cutting mechanism is assembled on the outer surfaces of the four groups of guide rail rods through linear sliding pairs, and the cutting mechanism can do linear reciprocating motion along the guide rail rods and can be in shearing fit with a lower cutter plate arranged at one end of the cutting table; two groups of gripping mechanisms are mounted between the two groups of guide plates in a transmission connection manner; y-shaped frames are fixedly mounted at one ends of the guide plates, and a cloth reel supporting structure is formed between the two Y-shaped frames. Through the design of the cut-off mechanism, the gripping mechanism and the cutting mechanism, a'moving-static 'cutting state in traditional cutting is broken through a'conveying-cutting-segmenting' integrated mode, and efficient production and stable equipment operation are achieved.

Description

Technical Field

[0001] The present invention relates to the field of cutting technology, and in particular to an intelligent cutting system based on machine vision. Background Art

[0002] Cutting machines are processing equipment that uses electric motors with blades, laser beams, high-pressure water jets, and die punching to cut and punch out sewing materials into desired shapes. These include electric cutting shears, punching machines, and automatic cutting machines. Cutting shears are tools that replace manual scissors for cutting fabric. Depending on the blade type, they can be categorized as straight, circular, angle, or band knives. Cutting multiple layers of fabric can be accomplished manually using a workbench. A cutting table is a workbench with a cutting mechanism. Due to the diverse cutting methods, cutting tables can be categorized as punching machines, hydraulic cutting machines, automatic laser cutting machines, combination cutting tables, and vacuum cutting tables.

[0003] For example, the Chinese authorized patent with announcement number CN220971121U discloses an automatic cloth cutting device, which relates to the field of cloth production technology. The automatic cloth cutting device includes the outer surface of the adjusting screw being rotatably connected to the central axis of the screw bearing seat through a bearing, rod seats being fixed at both ends of the screw bearing seat, a sliding rod being fixed at the top of the rod seat, the outer surfaces of two groups of the sliding rods being slidably connected to a slider seat, the center of the slider seat being provided with a threaded groove adapted to the adjusting screw, the adjusting screw being threadedly connected to the slider seat, the automatic cloth cutting device of the utility model, through the provided cloth pressing assembly, the end of the cloth after cutting is always kept under the cloth pressing roller, and the cloth is loaded again through the conveyor belt to ensure the continuity of the next process, and the cloth is compounded together through the provided progressive assembly.

[0004] However, the above-mentioned automatic fabric cutting device can only perform single-dimensional cutting along the length direction of the fabric, and cannot simultaneously complete the initial shape of the clothing, such as the shaping and cutting of the neckline, cuffs, and hem contours. Subsequent manual secondary cutting or cooperation with other equipment to complete the shaping still requires, which increases the complexity of the process and time cost. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent cutting system based on machine vision to solve the problem proposed in the above-mentioned background technology that it can only perform single-dimensional cutting along the length direction of the fabric, and cannot simultaneously complete the shaping and cutting of the initial shape of the clothing such as the neckline, cuffs, and hem contours, resulting in reliance on manual secondary cutting or additional equipment processing, which leads to process fragmentation and extended production cycle.

[0006] To achieve the above object, the present invention provides the following technical solutions: An intelligent cutting system based on machine vision comprises: a cutting table, wherein an N-shaped frame and two groups of guide plates are respectively provided at both ends of the upper surface of the cutting table; four groups of guide rods are symmetrically fixedly installed at both ends of the N-shaped frame, and the outer surfaces of the four groups of guide rods are equipped with cutting mechanisms through linear sliding pairs, and the cutting mechanisms can make linear reciprocating motion along the guide rods and can form a shearing fit with a lower knife plate provided at one end of the cutting table; two groups of biting mechanisms are installed between the two groups of guide plates through a transmission connection; a Y-shaped frame is fixedly installed at one end of each guide plate, and a cloth roll support structure is formed between the two groups of Y-shaped frames for placing the cloth roll, so that the cloth can be continuously conveyed under the drive of the transmission roller of the biting mechanism.

[0007] The above-mentioned intelligent cutting system based on machine vision, wherein: a connecting rod is fixedly installed at one end of the inner side of each of the two sets of guide plates, a first L-shaped seat is fixedly installed between the two sets of connecting rods, a second L-shaped seat is fixedly installed at one end of the N-shaped frame, cameras are fixedly installed on the lower surfaces of the first L-shaped seat and the second L-shaped seat, and a cutting mechanism is fixedly installed between the first L-shaped seat and the second L-shaped seat, the cutting end of the cutting mechanism is located directly above the cutting table and is designed to be bilaterally symmetrical, when the cloth is fed onto the surface of the cutting table, the cloth is within the monitoring range of the camera, the two sets of cameras synchronously collect real-time image data on both sides of the cloth, the control system identifies the left and right boundaries of the cloth through an edge detection algorithm, and calculates the central axis of the cloth as a symmetry reference; The camera continuously tracks characteristic points on the fabric, such as texture and marking lines. Based on a preset clothing template, such as the neckline and cuff outlines, the system mirrors the template path along the central axis to generate a bilaterally symmetrical cutting trajectory. The bilaterally symmetrical cutting ends of the cutting mechanism synchronously execute cutting actions based on real-time visual feedback data, ensuring that the fabric on both sides is accurately cut into a completely symmetrical initial garment shape. Throughout the entire process, the camera serves as the monitoring unit of the closed-loop control system, continuously monitoring the fabric position and adjusting the cutting path in real time to effectively compensate for mechanical errors and fabric deformation, thereby achieving a high-precision symmetrical cutting effect. The monitoring range of the camera installed on the lower surface of the first L-shaped seat covers the lower blade area of ​​the cutting table. After the cloth is cut, it is transported to the cutting mechanism through the cutting table under the continuous feeding action of the biting mechanism. When the length of the cloth transported to the cutting mechanism reaches a preset threshold, the camera captures the state of the cloth length reaching the preset threshold in real time and sends a trigger signal to the control system. After receiving the signal, the control system drives the cutting mechanism to slide towards the lower blade to realize the cutting action of the cloth between the two.

[0008] The above-mentioned intelligent cutting system based on machine vision, wherein: the cutting mechanism includes a hydraulic rod rotatably mounted on the upper surface of the N-shaped frame, one end of the piston rod of the hydraulic rod is rotatably connected to the first connecting arm, and the middle section of the first connecting arm is rotatably mounted on the inner wall of the N-shaped frame through a hinge shaft to form a lever fulcrum structure; the other end of the first connecting arm is rotatably connected to the second connecting arm through a joint bearing, and the other end of the second connecting arm is rotatably mounted on the upper surface of the mounting plate; the mounting plate is slidably sleeved on the outer surface of the four groups of guide rods through linear bearings to form a linear sliding pair; the lower surface of the mounting plate is fixedly mounted with an upper knife plate, and the cutting edge plane of the upper knife plate and the cutting edge plane of the lower knife plate are in the same horizontal shear plane.

[0009] The above-mentioned intelligent cutting system based on machine vision, wherein: a horizontal plate is provided on the outer periphery of the hinge of the first connecting arm and the second connecting arm, and when the hydraulic rod performs telescopic movement, the first connecting arm is driven to perform rotational movement around the hinge fulcrum of its middle section and the N-shaped frame, and the other end of the first connecting arm drives the second connecting arm to move through the hinge pair, and the other end of the second connecting arm drives the mounting plate to perform linear reciprocating sliding along the four sets of guide rods through the rotating pair, so that the upper knife plate and the lower knife plate fixed on the lower surface of the mounting plate form a shearing fit, thereby realizing the cloth cutting function.

[0010] The above-mentioned intelligent cutting system based on machine vision, wherein: a plurality of groups of springs are evenly fixed on the other end of the lower surface of the mounting plate, the lower end of the spring is fixedly connected to the upper surface of the pressing plate, the upper surface of the pressing plate is vertically fixed with a guide column, the upper end of the guide column is slid through the mounting plate and extends above it, and the spring is sleeved on the outer circumference of the guide column.

[0011] The above-mentioned intelligent cutting system based on machine vision, wherein: the biting mechanism includes an electric push rod fixedly installed on the upper surface of the guide plate, the piston rod of the electric push rod slides downward to penetrate into the guide plate and is fixedly connected to the guide rail plate, the guide rail plate and the guide plate constitute a sliding pair, a first roller column is rotatably installed between the two groups of guide plates through bearings, a second roller column arranged parallel to the first roller column is rotatably installed between the two groups of guide plates through bearings, both ends of the second roller column are rotated to pass through the guide plate, and one end thereof is fixedly connected to the output shaft of the first motor fixedly installed on the outside of the guide plate, and the outer circumference of the second roller column is flush with the upper surface of the cutting table.

[0012] The above-mentioned intelligent cutting system based on machine vision, wherein: the other end of the second roller column is fixedly installed with a first transmission disc, the first transmission disc is connected to the second transmission disc through a synchronous belt, the second transmission disc is fixedly installed on the end of one of the two groups of transmission columns, the two groups of transmission columns are rotatably installed in the cutting table through bearings, and the outer periphery of the two groups of transmission columns is covered with a conveyor belt. When the second roller column rotates, the conveyor belt is driven to move synchronously through the first transmission disc, the synchronous belt and the second transmission disc to realize the conveying function of the cloth.

[0013] The above-mentioned intelligent cutting system based on machine vision, wherein: the cutting mechanism includes a linear module fixedly installed between the first L-shaped seat and the second L-shaped seat, a connecting cylinder is fixedly installed on the lower surface of the movable seat of the linear module, and a positive and negative bidirectional screw rod is rotatably installed in the connecting cylinder through a bearing, and the two ends of the positive and negative bidirectional screw rod are respectively provided with external threads with opposite rotation directions, and the two ends of the positive and negative bidirectional screw rod are respectively threadedly connected with a fastening sleeve, and a YAG laser is fixedly installed in the fastening sleeve.

[0014] The above-mentioned intelligent cutting system based on machine vision, wherein: a second motor is fixedly installed on one end of the connecting tube, and the output shaft of the second motor rotates and penetrates into the connecting tube and is fixedly connected to the end of the forward and reverse bidirectional screw rod.

[0015] The above-mentioned intelligent cutting system based on machine vision, wherein: the center distance between the two groups of fastening sleeves and the forward and reverse bidirectional screws is equal, when the second motor drives the forward and reverse bidirectional screws to rotate, the two groups of YAG lasers move synchronously toward or away from each other along the forward and reverse bidirectional screws, realizing a symmetrical cutting function.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This machine vision-based intelligent cutting system achieves efficient and accurate fabric cutting and truncation through multi-component collaborative design and automated control. Its technical effects are mainly reflected in the following aspects: 1. Full-process automation and efficient production: The system has built an integrated "conveying-cutting-segmenting" model. The entire process of fabric operation from roll placement, biting conveying, intelligent cutting to precise cutting is automated, eliminating the "motion-static" separation state of traditional cutting, greatly improving production efficiency, and reducing manual intervention and operational errors. 2. High-Precision Cutting and Positioning: Leveraging machine vision technology, a camera captures fabric images in real time. Edge detection and feature point tracking accurately identify boundaries and calculate the center axis, generating a symmetrical cutting trajectory based on a pre-set clothing template. The cutting mechanism, utilizing high-precision transmission mechanisms from a lead screw and linear module, achieves a cutting error of ≤0.1mm, ensuring a highly symmetrical initial garment shape. 3. Stable and reliable cutting function: The cutting mechanism adopts a hydraulic drive and connecting rod transmission structure. Through the "monitoring-triggering-pressing-cutting-reset" closed-loop control, when the fabric reaches the preset length, the pressing plate cooperates with the spring to first stabilize the fabric to avoid displacement or wrinkles during cutting. Then the upper and lower blades cooperate to complete the neat cutting, ensuring cutting accuracy and fabric quality. 4. Flexible and stable fabric transportation: The bite mechanism flexibly adjusts the pressure of the double-roller pressure column through the electric push rod to ensure that the fabric is evenly stressed and not damaged; the double-roller pressure column works in conjunction with the drive plate and conveyor belt to achieve "bite-conveyance" integration, ensuring that the fabric is smoothly and continuously transported to the cutting table, providing a reliable prerequisite for precise cutting. 5. Strong Adaptability and Intelligent Control: The system can adapt to different fabric materials and clothing template cutting requirements by adjusting parameters. The screw speed and linear module movement can be flexibly adjusted to achieve smooth cutting of contours with different curvatures. At the same time, dynamic visual positioning and real-time trajectory compensation functions effectively compensate for mechanical errors and fabric deformation, improving the system's adaptability to complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the lower blade of the present invention; Figure 3 Schematic diagram of the structure of the camera of the present invention; Figure 4 It is a structural schematic diagram of the upper blade of the present invention; Figure 5 It is a structural schematic diagram of the cutting mechanism of the present invention; Figure 6 It is a structural schematic diagram of the pressing plate and the guide column of the present invention; Figure 7 It is a structural schematic diagram of the biting mechanism of the present invention; Figure 8 It is a structural schematic diagram of the conveyor belt of the present invention; Figure 9 It is a structural schematic diagram of the cutting mechanism of the present invention; Figure 10 It is a schematic structural diagram of the fastening sleeve and the YAG laser of the present invention.

[0018] In the figure: 1. Cutting table; 101. N-shaped frame; 102. Guide plate; 103. Y-shaped frame; 104. Second L-shaped seat; 105. Connecting rod; 106. First L-shaped seat; 107. Camera; 108. Lower blade; 109. Guide rail; 2. Cutting mechanism; 201. Hydraulic rod; 202. First connecting arm; 203. Horizontal plate; 204. Second connecting arm; 205. Mounting plate; 206. Upper blade; 207. Pressing plate; 208. Guide column; 209. Spring; 3. Biting mechanism; 301. Electric push rod; 302. Guide plate; 303. First roller column; 304. Second roller column; 305. First motor; 306. First transmission disc; 307. Second transmission disc; 308. Synchronous belt; 309. Conveyor belt; 310. Transmission column; 4. Cutting mechanism; 401. Linear module; 402. Connecting cylinder; 403. Second motor; 404. Bidirectional lead screw with positive and negative teeth; 405. Fastening sleeve; 406. YAG laser. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-10 , this embodiment provides the following technical solutions: like Figures 1-3 As shown, an intelligent cutting system based on machine vision comprises: a cutting table 1, with an N-shaped frame 101 and two sets of guide plates 102 respectively provided at both ends of the upper surface of the cutting table 1; four sets of guide rods 109 are symmetrically fixedly installed at both ends of the N-shaped frame 101, and the outer surfaces of the four sets of guide rods 109 are equipped with a cutting mechanism 2 via a linear sliding pair. The cutting mechanism 2 can perform linear reciprocating motion along the guide rods 109 and can form a shearing cooperation with a lower knife plate 108 provided at one end of the cutting table 1; two sets of biting mechanisms 3 are installed between the two sets of guide plates 102 via a transmission connection; a Y-shaped frame 103 is fixedly installed at one end of each guide plate 102, and a fabric roll support structure is formed between the two sets of Y-shaped frames 103 for placing the fabric roll so that the fabric can be continuously conveyed under the drive of the transmission roller of the biting mechanism 3; Wherein, the inner side of two groups of guide plates 102 is fixedly installed with connecting rod 105, two groups of connecting rod 105 is fixedly installed with first L-shaped seat 106, one end of n-shaped frame 101 is fixedly installed with second L-shaped seat 104, the lower surface of first L-shaped seat 106 and second L-shaped seat 104 is fixedly installed with camera 107, and first L-shaped seat 106 and second L-shaped seat 104 is fixedly installed with cutting mechanism 4, the cutting end of cutting mechanism 4 is above the cutting table 1 and is designed as left-right symmetry, when the cloth is supplied on the surface of cutting table 1, the cloth is in the monitoring range of camera 107, two groups of camera 107 synchronously collect real-time image data of both sides of cloth, the control system identifies the left and right boundary of cloth through edge detection algorithm, and calculates the center axis of cloth as the symmetry reference; Wherein, camera 107 continuously tracks the feature points on the cloth, such as texture, marking line, the system generates left-right symmetric cutting trajectory by mirroring the template path along the center axis based on the preset clothes template, such as collar, sleeve opening contour, the left-right symmetric cutting end of cutting mechanism 4 synchronously executes cutting action according to the real-time data of visual feedback, ensures that both sides of cloth are accurately cut into completely symmetric initial clothes shape, in the whole process, camera 107 as monitoring unit of closed loop control system, through continuously monitoring cloth position and real-time adjusting cutting path, effectively compensates mechanical error and cloth deformation, to realize high-precision symmetric cutting effect.

[0021] Wherein, the monitoring range of camera 107 installed on the lower surface of first L-shaped seat 106 covers the area of lower knife plate 108 of cutting table 1, when the cloth is cut, under the continuous supply of biting mechanism 3, it is transported to cutting mechanism 2 through cutting table 1, when the length of cloth transported into cutting mechanism 2 reaches the preset threshold, camera 107 captures the state in real time and sends trigger signal to control system, after receiving the signal, control system drives cutting mechanism 2 to slide to lower knife plate 108, realizes the cutting action of cloth between them.

[0022] Through the design of the cutting table 1, the n-shaped frame 101, the guide plate 102, the camera 107, the lower knife plate 108, the cutting mechanism 2, the biting mechanism 3 and the cutting mechanism 4, in use, the staff can place the cloth roll on the Y-shaped frame 103, then the cloth can be threaded between the biting mechanism 3 to the surface of the cutting table 1, then the staff can adjust the biting mechanism 3 to fully press at the upper and lower surfaces of the cloth and start, after the biting mechanism 3 starts, the transmission roller continuously pulls out the cloth from the roll and smoothly delivers it to the surface of the cutting table 1, in the process, the two groups of cameras 107 work continuously, not only collecting images on both sides of the cloth in real time, accurately identifying the boundary and calculating the center axis through edge detection algorithm, but also closely tracking the texture, marker line and other feature points on the cloth, once the cloth is detected to deviate or rotate during delivery, the data is immediately fed back to the control system, the control system generates left-right symmetric cutting tracks according to the preset garment template, such as the neckline, sleeve opening contour, along the center axis, and sends instructions to the cutting mechanism 4, after the left-right symmetric cutting ends of the cutting mechanism 4 receive the instructions, according to the real-time data feedback by the camera 107, the cutting action is executed synchronously, the cloth is accurately cut, and the left-right symmetric initial garment shape is cut out, at the same time, the camera 107 on the lower surface of the first L-shaped seat 106 monitors the situation at the cutting table 1 lower knife plate 108 at all times, as the biting mechanism 3 continuously supplies the cloth, the cut cloth is continuously delivered to the cutting mechanism 2, when the length of the cloth delivered into the cutting mechanism 2 reaches the preset threshold, the camera 107 quickly captures this state and sends a trigger signal to the control system, the control system immediately starts the cutting mechanism 2, makes it slide to the lower knife plate 108 along the guide rail 109, completes the cutting action of the cloth, realizes the accurate cutting of the cloth, and this "delivery-cutting-segmentation" integrated mode breaks the traditional cutting "motion-stationary" state, through dynamic visual positioning, real-time trajectory compensation and multi-axis collaborative control, the cutting is transformed from "independent process" to "flowing process node", which makes the cloth delivery, cutting and cutting whole process automatic operation, reduces manual intervention.

[0023] As Figures 4-6As shown, the cutting mechanism 2 comprises a hydraulic rod 201 rotatably mounted on the upper surface of the n-shaped frame 101, the piston rod of the hydraulic rod 201 is rotatably connected to a first connecting arm 202, the middle section of the first connecting arm 202 is rotatably mounted to the inner side wall of the n-shaped frame 101 through a hinge shaft, forming a lever fulcrum structure; the other end of the first connecting arm 202 is rotatably connected to a second connecting arm 204 through a joint bearing, the other end of the second connecting arm 204 is rotatably mounted on the upper surface of a mounting plate 205; the mounting plate 205 is slidably sleeved on the outer surface of the four sets of guide rail rods 109 through a linear bearing, forming a linear sliding pair; the lower surface of the mounting plate 205 is fixedly mounted with an upper blade plate 206, the cutting edge plane of the upper blade plate 206 is in the same horizontal shearing plane as the cutting edge plane of the lower blade plate 108.

[0024] Wherein, the hinge joint between the first connecting arm 202 and the second connecting arm 204 is sleeved with a horizontal plate 203, when the hydraulic rod 201 performs extension and retraction movement, the first connecting arm 202 is driven to perform rotary movement around the hinge fulcrum between the middle section and the n-shaped frame 101, the other end of the first connecting arm 202 drives the second connecting arm 204 to move through the hinge pair, the other end of the second connecting arm 204 drives the mounting plate 205 to perform linear reciprocating sliding along the four sets of guide rail rods 109 through the rotary pair, so that the upper blade plate 206 fixed to the lower surface of the mounting plate 205 forms shearing cooperation with the lower blade plate 108, realizing cloth cutting function.

[0025] Wherein, the lower surface of the mounting plate 205 is fixedly provided with a plurality of groups of springs 209, the lower end of the spring 209 is fixedly connected to the upper surface of a pressing plate 207, the upper surface of the pressing plate 207 is perpendicularly fixed with a guide column 208, the upper end of the guide column 208 is slidably sleeved on the mounting plate 205 and extends above it, and the spring 209 is sleeved on the outer periphery of the guide column 208.

[0026] When the cloth of a specific length and after cutting is conveyed into the n-shaped frame 101 under the drive of the biting mechanism 3 and is between the lower knife plate 108 and the upper knife plate 206, the first L-shaped seat 106 lower surface camera 107 will monitor that the cloth length reaches the preset threshold value, and the control system will immediately send a start instruction to the hydraulic rod 201, so that the hydraulic rod 201 starts to stretch and retract, and its piston rod drives the first connecting arm 202 to rotate around the rotating support point in the n-shaped frame 101. At this time, the first connecting arm 202 converts the linear motion of the hydraulic rod 201 into rotary motion, and in this process, the transversal plate 203 rotatingly installed between the first connecting arm 202 and the second connecting arm 204 plays a stable supporting role, ensuring that the force transmission is stable and has no deviation. The rotation of the first connecting arm 202 can drive the second connecting arm 204 to move, and the second connecting arm 204 drives the mounting plate 205 to slide reciprocatingly along the four groups of guide rail rods 109. In the process of downward sliding of the mounting plate 205, the solid pressing plate 207 on the lower surface thereof will first contact the cloth, at this time the guide column 208 slides along the guide hole on the upper surface of the mounting plate 205, ensuring that the solid pressing plate 207 is pressed vertically, and at the same time the spring 209 is compressed to generate an elastic force, which tightly presses the cloth on the lower knife plate 108, avoiding displacement or wrinkles of the cloth when cutting, and as the mounting plate 205 continues to slide downward, the upper knife plate 206 fixed on the lower surface thereof cooperates with the lower knife plate 108, and by virtue of the pressure transmitted by the hydraulic rod 201, the cloth is quickly and neatly cut off. After cutting is completed, the hydraulic rod 201 reversely stretches and retracts, driving each component to reset, and the solid pressing plate 207 is lifted under the elastic restoring force of the spring 209, releasing the cloth, waiting for the next cutting instruction, completing the entire cloth cutting process, and realizing efficient production and stable equipment operation through the automatic closed loop design of "monitoring-triggering-pressing-cutting-resetting", while ensuring cutting accuracy and cloth quality. It is especially suitable for textile processing scenes with high precision and efficiency requirements.

[0027] As shown in Figures 7-8 The biting mechanism 3 includes a motor push rod 301 fixedly installed on the upper surface of the guide plate 102, the piston rod of the motor push rod 301 slides downward into the guide plate 102 and is fixedly connected with the guide rail plate 302, the guide rail plate 302 and the guide plate 102 form a sliding pair, the first roller pressing column 303 is rotatably installed between the two groups of guide rail plates 302 through bearings, the second roller pressing column 304 parallel to the first roller pressing column 303 is rotatably installed between the two groups of guide plates 102 through bearings, the two ends of the second roller pressing column 304 are rotatably penetrated out of the guide plate 102, one end is fixedly connected with the output shaft of the first motor 305 fixedly installed on the outer side of the guide plate 102, and the outer circumferential surface of the second roller pressing column 304 is flush with the upper surface of the cutting table 1.

[0028] Among them, the other end of the second roller column 304 is fixedly installed with a first transmission disc 306, and the first transmission disc 306 is connected to the second transmission disc 307 through a synchronous belt 308. The second transmission disc 307 is fixedly installed at the end of one of the two groups of transmission columns 310. The two groups of transmission columns 310 are rotatably installed in the cutting table 1 through bearings, and the outer periphery of the two groups of transmission columns 310 is covered with a conveyor belt 309. When the second roller column 304 rotates, the conveyor belt 309 is driven to move synchronously through the first transmission disc 306, the synchronous belt 308, and the second transmission disc 307 to realize the conveying function of the cloth.

[0029] Through the design of the electric push rod 301, the guide plate 302, the first roller column 303, the second roller column 304, the first motor 305, the first transmission disc 306, the second transmission disc 307, the synchronous belt 308 and the conveyor belt 309, when in use, the staff can place the cloth roll on the Y-shaped frame 103, and then the cloth can pass through between the first roller column 303 and the second roller column 304 and be pulled to the surface of the conveyor belt 309 installed in the cutting table 1, and then the electric push rod 301 can be started to push the piston rod to push the guide plate 302 to move vertically downward along the inner track of the guide plate 102, so that the guide plate 302 can drive the first roller column 303 to approach the second roller column 304 and form precise pressure on the cloth between them, and then the first motor 305 can drive the second roller column 304 to rotate clockwise to realize the cloth from The cloth is continuously pulled out from the roll, and the first roller pressure column 303 that touches the upper surface of the cloth can be driven to rotate together. At the same time, the first transmission plate 306 at the other end of the second roller pressure column 304 drives the second transmission plate 307 to rotate together through the synchronous belt 308, so that the second transmission plate 307 can drive the transmission column 310 to synchronously drive the conveyor belt 309 to convey the cloth, so that it can ensure that the cloth is smoothly transferred to the surface of the cutting table 1 while being bitten, realizing the integration of "biting-conveying", and the pressure between the first roller pressure column 303 and the second roller pressure column 304 can be adjusted by pushing the electric push rod 301 to ensure that the cloth is evenly stressed and avoid damage to the cloth due to improper pressure. At the same time, the double roller pressure columns are used in conjunction with the transmission plate to synchronously drive the conveyor belt 309, so as to achieve smooth and continuous conveying of the cloth and ensure the positioning accuracy of the cloth before cutting.

[0030] like Figures 9-10 As shown, the cutting mechanism 4 includes a linear module 401 fixedly installed between the first L-shaped seat 106 and the second L-shaped seat 104, and a connecting cylinder 402 is fixedly installed on the lower surface of the movable seat of the linear module 401. A forward and reverse bidirectional screw rod 404 is rotatably installed in the connecting cylinder 402 through a bearing. Both ends of the forward and reverse bidirectional screw rod 404 are respectively provided with external threads with opposite rotation directions, and both ends of the forward and reverse bidirectional screw rod 404 are respectively threadedly connected with a fastening sleeve 405, and a YAG laser 406 is fixedly installed in the fastening sleeve 405.

[0031] Among them, a second motor 403 is fixedly installed at one end of the connecting tube 402, and the output shaft of the second motor 403 rotates and penetrates into the connecting tube 402 and is fixedly connected to the end of the forward and reverse bidirectional screw rod 404. The two sets of fastening sleeves 405 are at equal distances from the center of the forward and reverse bidirectional screw rod 404. When the second motor 403 drives the forward and reverse bidirectional screw rod 404 to rotate, the two sets of YAG lasers 406 move synchronously toward or away from each other along the forward and reverse bidirectional screw rod 404, realizing a symmetrical cutting function.

[0032] Through the design of the linear module 401, the connecting tube 402, the second motor 403, the forward and reverse bidirectional screw rod 404, the fastening sleeve 405 and the YAG laser 406, when the cloth is transported to the surface of the cutting table 1 under the drive of the first roller column 303 and the second roller column 304, it will be within the monitoring range of the camera 107 and the cloth image will be collected in real time and the symmetrical cutting trajectory will be calculated, so that the control system can send instructions to the linear module 401 and the second motor 403 accordingly. The second motor 403 can drive the forward and reverse bidirectional screw rod 404 to rotate. Since the thread directions at both ends of the screw rod are opposite and the fastening sleeve 405 is equidistant from the center, when the screw rod rotates, it will drive the fastening sleeves 405 on both sides to move synchronously toward the center or both ends, so that the YAG laser 406 fixed in the fastening sleeve 405 can be quickly adjusted to the target cutting width. At the same time, the moving block of the linear module 401 moves along the guide The rail slides at high speed, driving the connecting tube 402 and the YAG laser 406 to move horizontally as a whole. The YAG laser 406 emits a high-energy laser beam during movement, instantly vaporizing the fabric fibers and forming a cutting seam with a width of only 0.1mm. In the cutting process, the lead screw transmission accuracy reaches ±0.05mm, and combined with the positioning accuracy of the linear module 401 ±0.02mm, the symmetrical cutting error of the two groups of YAG lasers 406 is ≤0.1mm. The lead screw speed can be adjusted by the frequency conversion of the second motor 403 to achieve smooth cutting of different curvature contours, such as the hem curve. After cutting is completed, the linear module 401 can drive the YAG laser 406 to reset quickly, and the forward and reverse bidirectional lead screw 404 rotates in the opposite direction to open the YAG laser 406 to the initial spacing, waiting for the next cutting instruction. The entire process is completed automatically, achieving high-precision and high-efficiency fabric forming and cutting.

[0033] According to the above technical solution, the working steps of this solution are summarized and sorted out: when in use, the staff can place the cloth roll on the Y-shaped frame 103, and then the cloth can be passed through between the first roller column 303 and the second roller column 304 and pulled to the surface of the conveyor belt 309 installed in the cutting table 1, and then the electric push rod 301 can be started to push the piston rod to push the guide plate 302 to move vertically downward along the inner track of the guide plate 102, so that the guide plate 302 can drive the first roller column 303 to approach the second roller column 304 and form a precise pressure on the cloth between them. The first motor 305 drives the second roller 304 to rotate clockwise to continuously pull the cloth out of the roll, and the first roller 303 touching the upper surface of the cloth can be driven to rotate together. At the same time, the first transmission disc 306 at the other end of the second roller 304 drives the second transmission disc 307 to rotate together through the synchronous belt 308, and then the second transmission disc 307 drives the transmission column 310 to synchronously drive the conveyor belt 309 to convey the cloth, so that it can ensure that the cloth is smoothly transferred to the surface of the cutting table 1 while being bitten. When the surface is conveyed to the cutting table 1, that is, the surface of the conveyor belt 309, it will be within the monitoring range of the camera 107 and the fabric image will be collected in real time and the symmetrical cutting trajectory will be calculated, so that the control system can send instructions to the linear module 401 and the second motor 403 accordingly. The second motor 403 can drive the positive and negative bidirectional screw rod 404 to rotate. Since the threads at both ends of the screw rod have opposite directions and the distance between the fastening sleeve 405 and the center part is equal, when the screw rod rotates, it will drive the fastening sleeves 405 on both sides to move synchronously toward the center or both ends, so that the fastening sleeves 405 fixed in the fastening sleeve 405 can move synchronously. The YAG laser 406 quickly adjusts to the target cutting width. Simultaneously, the moving block of the linear module 401 slides at high speed along the guide rail, driving the connecting cylinder 402 and the YAG laser 406 to translate as a whole. During this movement, the YAG laser 406 emits a high-energy laser beam, instantly vaporizing the fabric fibers and creating a cutting seam just 0.1mm wide. During the cutting process, the lead screw transmission accuracy reaches ±0.05mm, which, combined with the linear module 401's ±0.02mm positioning accuracy, ensures that the symmetrical cutting error of the two YAG lasers 406 is ≤0.1mm, and the screw speed can be adjusted by the second motor 403 frequency conversion to achieve smooth cutting of different curvature contours, such as the hem arc. After the cutting is completed, the linear module 401 can drive the YAG laser 406 to quickly reset, and the positive and negative bidirectional screw 404 rotates in the opposite direction to open the YAG laser 406 to the initial spacing, waiting for the next cutting instruction, and then the cut fabric can be continuously transported, and then the cut fabric can be transported into the n-shaped frame 101 and between the lower knife plate 108 and the upper knife plate 206. During the process, the camera 107 on the lower surface of the first L-shaped seat 106 will continuously monitor the length of the cloth being conveyed into the N-shaped frame 101. When the length of the cloth conveyed reaches a preset threshold, the control system will immediately send a start command to the hydraulic rod 201, allowing the hydraulic rod 201 to begin to extend and retract. The piston rod drives the first connecting arm 202 to rotate around the rotating fulcrum in the N-shaped frame 101. At this time, the first connecting arm 202 converts the linear motion of the hydraulic rod 201 into a rotational motion. In this process, the rotating shaft mounted on the first connecting arm 202 The horizontal plate 203 between the first connecting arm 202 and the second connecting arm 204 plays a role of stable support, ensuring that the force transmission is smooth and without deviation. The rotation of the first connecting arm 202 can drive the second connecting arm 204 to move, and the second connecting arm 204 then drives the mounting plate 205 to slide back and forth along the four sets of guide rails 109. During the sliding process of the mounting plate 205, the pressing plate 207 on its lower surface will first contact the fabric. At this time, the guide column 208 slides along the guide hole on the upper surface of the mounting plate 205 to ensure that the pressing plate 207 is pressed vertically downward, and at the same time, the spring 209 is compressed to generate elasticity. The force exerted by the hydraulic rod 201 tightly presses the fabric against the lower blade 108, preventing displacement or wrinkles during cutting. As the mounting plate 205 continues to slide downward, the upper blade 206 fixed to its lower surface cooperates with the lower blade 108, and the hydraulic rod 201 transmits pressure to quickly and neatly cut the fabric. After cutting, the hydraulic rod 201 retracts and retracts, driving the components to reset. The holding plate 207 is lifted by the elastic restoring force of the spring 209, releasing the fabric and waiting for the next cutting instruction, thus completing the entire fabric cutting process.

[0034] In summary: This machine vision-based intelligent cutting system breaks the "movement-stillness" separation in traditional cutting through the integrated "conveying-cutting-segmentation" mode. Through dynamic visual positioning, real-time trajectory compensation and multi-axis collaborative control, it transforms cutting from an "independent process" into a "process node in flow", achieving efficient production and stable equipment operation.

[0035] The portions of the application not described herein are the same as or can be implemented using the prior art. Although embodiments of the application have been illustrated and described, it will be clear to those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application. The scope of the application is limited only by the claims and the equivalents thereof.

Claims

1. An intelligent cutting system based on machine vision, characterized in that: include: A cutting table (1), wherein both ends of the upper surface of the cutting table (1) are respectively provided with an N-shaped frame (101) and two groups of guide plates (102); four groups of guide rails (109) are symmetrically fixedly installed at both ends of the inner side of the N-shaped frame (101); the outer surfaces of the four groups of guide rails (109) are equipped with a cutting mechanism (2) through a linear sliding pair, and the cutting mechanism (2) can make a linear reciprocating motion along the guide rails (109) and can form a shearing fit with a lower knife plate (108) provided at one end of the cutting table (1); two groups of biting mechanisms (3) are installed between the two groups of guide plates (102) through a transmission connection; a Y-shaped frame (103) is fixedly installed at one end of each guide plate (102); a cloth roll support structure is formed between the two groups of Y-shaped frames (103) for placing the cloth roll, so that the cloth can be continuously conveyed under the drive of the transmission roller of the biting mechanism (3).

2. The machine vision-based intelligent cutting system according to claim 1, characterized in that: A connecting rod (105) is fixedly mounted on one end of the inner side of each of the two sets of guide plates (102), a first L-shaped seat (106) is fixedly mounted between the two sets of connecting rods (105), a second L-shaped seat (104) is fixedly mounted on one end of the n-shaped frame (101), cameras (107) are fixedly mounted on the lower surfaces of each of the first L-shaped seat (106) and the second L-shaped seat (104), and a cutting mechanism (4) is fixedly mounted between the first L-shaped seat (106) and the second L-shaped seat (104), the cutting end of the cutting mechanism (4) is located just above the cutting table (1) and is designed to be bilaterally symmetrical. When the cloth is fed onto the surface of the cutting table (1), the cloth is within the monitoring range of the camera (107), and the two sets of cameras (107) synchronously collect real-time image data on both sides of the cloth. The control system identifies the left and right boundaries of the cloth through an edge detection algorithm and calculates the central axis of the cloth as a symmetry reference. The camera (107) continuously tracks the characteristic points on the cloth. Based on a preset clothing template, the system mirrors the template path along the central axis to generate a bilaterally symmetrical cutting trajectory. The bilaterally symmetrical cutting ends of the cutting mechanism (4) synchronously execute the cutting action based on the real-time data of the visual feedback to ensure that the cloth on both sides is accurately cut into a completely symmetrical initial clothing shape. During the entire process, the camera (107) serves as a monitoring unit of the closed-loop control system. By continuously monitoring the cloth position and adjusting the cutting path in real time, it effectively compensates for mechanical errors and cloth deformation to achieve a high-precision symmetrical cutting effect. The monitoring range of the camera (107) installed on the lower surface of the first L-shaped seat (106) covers the lower blade (108) area of ​​the cutting table (1). After the cloth is cut, it is continuously fed by the biting mechanism (3) and transported to the cutting mechanism (2) through the cutting table (1). When the length of the cloth transported to the cutting mechanism (2) reaches a preset threshold, the camera (107) captures the state that the cloth length reaches the preset threshold in real time and sends a trigger signal to the control system. After receiving the signal, the control system drives the cutting mechanism (2) to slide toward the lower blade (108), thereby realizing the cutting action of the cloth between the two.

3. The machine vision-based intelligent cutting system according to claim 1, characterized in that: The cutting mechanism (2) comprises a hydraulic rod (201) rotatably mounted on the upper surface of an N-shaped frame (101), one end of a piston rod of the hydraulic rod (201) is rotatably connected to a first connecting arm (202), and a middle section of the first connecting arm (202) is rotatably mounted on the inner side wall of the N-shaped frame (101) via a hinge shaft, thereby forming a lever fulcrum structure; the other end of the first connecting arm (202) is rotatably connected to a second connecting arm (204) via a joint bearing, and the other end of the second connecting arm (204) is rotatably mounted on the upper surface of a mounting plate (205); the mounting plate (205) is slidably sleeved on the outer surface of four sets of guide rails (109) via linear bearings, thereby forming a linear sliding pair; an upper blade plate (206) is fixedly mounted on the lower surface of the mounting plate (205), and the cutting edge plane of the upper blade plate (206) and the cutting edge plane of the lower blade plate (108) are in the same horizontal shear plane.

4. The machine vision-based intelligent cutting system according to claim 3, characterized in that: A transverse plate (203) is sleeved on the outer periphery of the hinged joint between the first connecting arm (202) and the second connecting arm (204). When the hydraulic rod (201) performs telescopic movement, the first connecting arm (202) is driven to perform rotational movement around the hinged fulcrum between its middle section and the N-shaped frame (101). The other end of the first connecting arm (202) drives the second connecting arm (204) to move via the hinged pair. The other end of the second connecting arm (204) drives the mounting plate (205) to perform linear reciprocating sliding along the four sets of guide rails (109) via the rotating pair, so that the upper knife plate (206) fixed to the lower surface of the mounting plate (205) forms a shearing fit with the lower knife plate (108), thereby realizing a cloth cutting function.

5. The machine vision-based intelligent cutting system according to claim 4, characterized in that: A plurality of groups of springs (209) are evenly distributed and fixed on the other end of the lower surface of the mounting plate (205), the lower ends of the springs (209) are fixedly connected to the upper surface of the pressing plate (207), and a guide column (208) is vertically fixed to the upper surface of the pressing plate (207), the upper end of the guide column (208) is slidably arranged on the mounting plate (205) and extends above it, and the springs (209) are sleeved on the outer periphery of the guide column (208).

6. The intelligent cutting system based on machine vision according to claim 1, characterized in that: The biting mechanism (3) includes an electric push rod (301) fixedly mounted on the upper surface of the guide plate (102), a piston rod of the electric push rod (301) slides downwardly into the guide plate (102) and is fixedly connected to the guide plate (302), the guide plate (302) and the guide plate (102) form a sliding pair, a first roller column (303) is rotatably mounted between the two groups of guide plates (302) via a bearing, a second roller column (304) arranged parallel to the first roller column (303) is rotatably mounted between the two groups of guide plates (102) via a bearing, both ends of the second roller column (304) are rotated to pass through the guide plate (102), one end of the second roller column (304) is fixedly connected to the output shaft of the first motor (305) fixedly mounted on the outside of the guide plate (102), and the outer circumferential surface of the second roller column (304) is flush with the upper surface of the cutting table (1).

7. The machine vision-based intelligent cutting system according to claim 6, characterized in that: A first transmission disc (306) is fixedly mounted on the other end of the second roller column (304), the first transmission disc (306) is connected to the second transmission disc (307) through a synchronous belt (308), the second transmission disc (307) is fixedly mounted on the end of one of the two groups of transmission columns (310), the two groups of transmission columns (310) are rotatably mounted in the cutting table (1) through bearings, and a conveyor belt (309) is sleeved on the outer periphery of the two groups of transmission columns (310), when the second roller column (304) rotates, the conveyor belt (309) is driven to move synchronously through the first transmission disc (306), the synchronous belt (308), and the second transmission disc (307), thereby realizing the conveying function of the cloth.

8. The intelligent cutting system based on machine vision according to claim 2, characterized in that: The cutting mechanism (4) comprises a linear module (401) fixedly mounted between a first L-shaped seat (106) and a second L-shaped seat (104); a connecting cylinder (402) is fixedly mounted on the lower surface of a movable seat of the linear module (401); a positive and negative thread bidirectional screw rod (404) is rotatably mounted in the connecting cylinder (402) via a bearing; both ends of the positive and negative thread bidirectional screw rod (404) are respectively provided with external threads with opposite rotation directions; both ends of the positive and negative thread bidirectional screw rod (404) are respectively threadedly connected to a fastening sleeve (405); a YAG laser (406) is fixedly mounted in the fastening sleeve (405).

9. The intelligent cutting system based on machine vision according to claim 8, characterized in that: A second motor (403) is fixedly mounted on one end of the connecting tube (402), and an output shaft of the second motor (403) rotates and penetrates into the connecting tube (402) and is fixedly connected to the end of the forward and reverse bidirectional screw rod (404).

10. The intelligent cutting system based on machine vision according to claim 9, characterized in that: The two sets of fastening sleeves (405) are equidistant from the center of the forward and reverse bidirectional screw rod (404); when the second motor (403) drives the forward and reverse bidirectional screw rod (404) to rotate, the two sets of YAG lasers (406) move synchronously toward or away from each other along the forward and reverse bidirectional screw rod (404), thereby realizing a symmetrical cutting function.

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