Laser cutting device and cutting method for clothing fabric

Abstract

The invention discloses a laser cutting device and method for clothing fabric, and relates to the technical field of motors, the laser cutting device comprises a supporting frame body and a fabric adsorption plate, the top of the supporting frame body is provided with a sliding edge and a rack, the sliding edge and the rack are used for installing the fabric adsorption plate, and under the cooperation of a cutting dynamic leveling assembly, in the whole cutting process, the fabric is subjected to laser cutting; the laser displacement sensor and the visual sensor continuously monitor the state of the fabric, the logic controller continuously receives data of the sensors and optimizes adjustment parameters in real time according to new data, and when it is found that the previous adjustment effect is not ideal or new deformation occurs on the fabric, the logic controller immediately recalculates the adjustment amount and sends a control instruction, so that the fabric is adjusted. And the cutting dynamic leveling assembly is correspondingly adjusted again, it is ensured that the fabric is always kept to be flatly located on the cutting line, and the stability and consistency of the cutting quality are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of clothing fabric cutting, in particular to a clothing fabric laser cutting device and a cutting method. Background Art

[0002] Clothing is a general term for clothes, shoes, bags and accessories, mostly referring to clothes. Clothes are products that protect and decorate the human body. In the process of producing clothes, the fabric is usually cut by a fabric cutting device and then sewn.

[0003] However, in the prior art, due to the softness and texture differences of fabrics, the fabrics are easily deformed by the impact energy of the laser during laser cutting, which makes the cutting edges rough, wrinkled or burnt. At the same time, it is difficult to accurately control the focal position of the laser beam and keep it constant throughout the cutting path, resulting in uneven cutting depth, making the cutting edges wavy or stepped, affecting the refinement of the clothing and subsequent processing steps, and reducing the product qualification rate. Therefore, it is necessary to propose a laser cutting device and cutting method for clothing fabrics. Summary of the invention

[0004] The purpose of the present invention is to provide a laser cutting device and cutting method for clothing fabrics, so as to solve the problem proposed in the above-mentioned background technology that due to the softness and texture difference of the fabric, the fabric is easily deformed by the impact energy of the laser during laser cutting, so that the cutting edge is prone to roughness, wrinkling or burning during cutting. At the same time, it is difficult to accurately control the focal position of the laser beam to keep it constant throughout the entire cutting path, resulting in uneven cutting depth, making the cutting edge wavy or stepped, affecting the refinement of the clothing and subsequent processing steps, and reducing the product qualification rate.

[0005] To achieve the above object, the present invention provides the following technical solution: a laser cutting device for clothing fabrics, comprising: A support frame and a fabric adsorption plate, wherein the top of the support frame is respectively provided with a sliding edge and a rack for mounting the fabric adsorption plate; The fabric adsorption plate is slidably connected to the top of the support frame, and an array of negative pressure adsorption holes is provided on its surface for automatically adjusting the adsorption area according to the size and thickness of the fabric; A laser cutting generator, wherein an azimuth cutting adjustment component is installed at the side end of the laser cutting generator, and cutting dynamic leveling components are symmetrically installed at the left and right ends of the laser cutting generator; The displacement axis adjustment fixed point assembly includes a horizontal hinge guide rail, a vertical hinge guide rail and a connecting sliding frame, which is installed on the top of the support frame through a connecting structure to drive the azimuth cutting adjustment assembly and the laser cutting generator to realize XY axis linkage; The azimuth cutting adjustment component comprises a connecting rotating frame, a first controlled energy-saving motor, a first rotating connecting frame, a second controlled energy-saving motor and a second rotating connecting frame. The azimuth cutting adjustment component is installed on the connecting sliding frame through the connecting rotating frame. The first controlled energy-saving motor is used to drive the first rotating connecting frame to achieve azimuth adjustment, and the second controlled energy-saving motor is used to drive the second rotating connecting frame to achieve angle fine adjustment. The cutting dynamic leveling component includes an electric telescopic rod, a short-distance screw adjustment rail, a pressing plate, an inert gas air curtain generator, a pneumatic adjustment shaft joint and a gas injector. The short-distance screw adjustment rail drives the pressing plate to compensate for fabric deformation in real time. At the same time, the inert gas air curtain generator drives the gas injector through the pneumatic adjustment shaft joint to form an argon air curtain.

[0006] Preferably, the displacement axis adjustment fixed point assembly further includes a connecting structure, the connecting structure is installed on the top of the supporting frame, the vertical hinge guide rail is slidably connected to the side of the transverse hinge guide rail, the connecting sliding frame is slidably connected to the side of the vertical hinge guide rail, the transverse hinge guide rail is installed on the top of the connecting structure, and is used to drive the vertical hinge guide rail and the connecting sliding frame connected to it and the azimuth cutting adjustment assembly to perform displacement adjustment, and the vertical hinge guide rail drives the connecting sliding frame to perform adjustment.

[0007] Preferably, the cutting dynamic leveling assembly further includes a side groove frame, which is fastened to the side end frame surface of the laser cutting generator, the inert gas curtain generator is installed inside the side groove frame, the gas injector is installed at the bottom of the pneumatic adjustment shaft joint, and the pneumatic adjustment shaft joint is installed at the bottom end of the inert gas curtain generator. The electric telescopic rod is installed on the side of the side groove frame, and the gas injector is driven by the pneumatic adjustment shaft joint installed at the bottom to form an argon gas curtain, so that the formed air curtain isolates the cutting area from the outside air during the laser cutting operation.

[0008] Preferably, the side end of the electric telescopic rod is fastened to the mounting frame, the internal end of the mounting frame is provided with a short-distance screw rod adjusting rail, the outside of the short-distance screw rod adjusting rail is slidably connected to the sliding distance connecting frame, the bottom of the sliding distance connecting frame is fastened to the chassis sliding frame, the bottom of the chassis sliding frame is slidably connected to the short adjusting slide rail edge, the top of the chassis sliding frame is provided with a short adjusting rod, the side end of the short adjusting rod is provided with a driving motor, the side end surface of the short adjusting slide rail edge is rotatably connected to the first rotating disk through the bottom adjusting motor, the side end surface of the first rotating disk is provided with an angle control motor, the side end surface of the first rotating disk is provided with a rotation angle sensor, the side end of the first rotating disk is rotatably connected to the second rotating disk, the side end bottom of the second rotating disk is fastened to a pressing plate, and the left and right side ends of the pressing plate are integrally formed with an arc pressing plate.

[0009] Preferably, a first guide rail frame is installed on the internal frame body of the support frame, and a second guide rail frame is connected to the top of the first guide rail frame via a sliding saddle block, the first guide rail frame and the second guide rail frame form X and Y axis control, the top of the second guide rail frame is slidably connected to a positioning sliding seat, the top of the positioning sliding seat is installed with a micro electric guide rod, and the top of the micro electric guide rod is installed with a negative pressure control adsorption end.

[0010] Preferably, sliding edges are symmetrically installed on the left and right ends of the top of the support frame, and a rack is installed on the top side end of the support frame. The rack and the sliding edge are located at the bottom of the fabric adsorption plate and form a sliding connection therewith. The side end of the rack is meshed with a forward and reverse control driving gear, and a photoelectric detection sensor is installed on the side end of the fabric adsorption plate.

[0011] Preferably, a discharge roller is installed on the top side end of the support frame, and a receiving roller is installed on the other top side end of the support frame. Laser protection plates are symmetrically installed on the left and right sides of the support frame, and a laser smoke purifier is installed on the top of the laser protection plate.

[0012] Preferably, the first rotating connecting frame is rotatably connected to the bottom of the connecting rotating frame, the connecting rotating frame is installed on the surface of the connecting sliding frame, and the first controlled energy-saving motor is installed on the top surface of the connecting rotating frame, which is used to drive the first rotating connecting frame and the second controlled energy-saving motor, and the cutting dynamic leveling component laser cutting generator to adjust the azimuth angle.

[0013] Preferably, the laser cutting generator is installed on the side of the second rotating connecting frame, and the second controlled energy-saving motor is installed on the inner surface of the side end of the first rotating connecting frame, and is used to drive the second rotating connecting frame and the connected laser cutting generator to adjust the azimuth angle.

[0014] A cutting method of a clothing fabric laser cutting device comprises the following steps: S1. First, the material conveying operation is formed by the unwinding roller and the receiving roller, and then the displacement axis is used to adjust the fixed point component to drive the azimuth cutting adjustment component and the cutting dynamic leveling component laser cutting generator to adjust the displacement; S2, after that, the fabric adsorption plate is adjusted in displacement under the cooperation of the sliding edge, the rack and the forward and reverse control driving gear, so as to cut the fabric; S3. Secondly, during the cutting process, by adjusting the azimuth cutting adjustment component and the cutting dynamic leveling component, it is possible to actively perform real-time dynamic leveling when the fabric is cut according to the deformation of the fabric during the cutting process, so as to ensure that the fabric is always flat and located on the cutting line during the cutting operation; S4. At the same time, with the cooperation of the cutting dynamic leveling component, the gas injection angle, flow rate and speed parameters of the gas injector are optimized during the cutting process, so that the generated argon gas curtain can accurately cover the cutting edge, thereby minimizing the scope and impact of the heat affected zone.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, after the whole device receives the start cutting instruction, the laser displacement sensor and the visual sensor installed on the cutting dynamic leveling component are used to monitor the flatness and deformation of the fabric in real time. When the fabric is locally uneven, the logic controller controls the electric telescopic rod to extend or contract, driving the mounting frame, the short-distance screw adjustment rail, the sliding distance connecting frame and the chassis sliding frame to rise or fall as a whole, so that the pressing plate and the arc pressing plate contact the fabric and apply appropriate pressure to adjust the fabric to a flat state. When the fabric is partially concave, the electric telescopic rod is extended to press the pressing plate down on the concave part to restore it to the same height as the surrounding fabric. In the whole cutting process, the laser displacement sensor and the visual sensor continuously monitor the state of the fabric, the logic controller continuously receives the sensor data and optimizes the adjustment parameters in real time according to the new data. When it is found that the previous adjustment effect is not ideal or the fabric has a new deformation, the logic controller immediately recalculates the adjustment amount and sends a control instruction to make the cutting dynamic leveling component to make corresponding adjustments again to ensure that the fabric is always kept flat on the cutting line and the stability and consistency of the cutting quality are guaranteed.

[0016] 2. In the present invention, with the cooperation of the cutting dynamic leveling component, when the fabric is displaced in the horizontal direction, the driving motor is started to drive the short adjusting rod to rotate, thereby making the chassis sliding frame slide left and right on the edge of the short adjusting slide rail. At the same time, the bottom adjusting motor can drive the first rotating disk to rotate as needed to change the angle of the chassis sliding frame to achieve precise adjustment in the horizontal direction. When the fabric is twisted clockwise, the bottom adjusting motor drives the first rotating disk to rotate counterclockwise, and at the same time, the driving motor controls the chassis sliding frame to move left to correct the distortion of the fabric. When it is necessary to adjust the contact angle between the pressing plate and the arc pressing plate and the fabric, the angle control motor is started to drive the second rotating disk to rotate relative to the first rotating disk, thereby changing the inclination angle of the pressing plate and the arc pressing plate, so that the surface of the fabric has a certain curvature or the fabric is partially warped due to stress changes during the cutting process. When the edge of the fabric tends to warp upward due to laser cutting, the angle control motor drives the second rotating disk to rotate, so that the arc pressing plate presses down the warped part at a suitable angle to flatten it.

[0017] 3. In the present invention, by cooperating with the azimuth cutting adjustment component and the displacement axis adjustment fixed point component, during the cutting operation, as the cutting path changes and various factors that may arise (such as local characteristic differences of the fabric, slight vibration of the equipment, etc.) during the laser cutting process, the logic controller sends corresponding control signals to the first control energy-saving motor and the second control energy-saving motor based on the real-time monitoring data, so that they work together to make real-time fine adjustments to the azimuth angle of the laser cutting generator to ensure that the laser beam can always be aligned with the cutting line at the correct angle and azimuth, thereby ensuring the cutting quality and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of a laser cutting device for clothing fabrics of the present invention; Figure 2 It is a schematic structural diagram of a side view of a laser cutting device for clothing fabrics of the present invention; Figure 3 It is a schematic diagram of the installation position structure of the first guide frame and the second guide frame in a laser cutting device for clothing fabrics of the present invention; Figure 4 In a laser cutting device for clothing fabrics of the present invention Figure 3 The enlarged structural diagram at B in FIG. Figure 5 It is a structural schematic diagram of a displacement axis adjustment fixed point assembly in a laser cutting device for clothing fabrics of the present invention; Figure 6 It is a structural schematic diagram of an azimuth cutting adjustment component in a laser cutting device for clothing fabrics of the present invention; Figure 7 It is a structural schematic diagram of a cutting dynamic leveling component in a laser cutting device for clothing fabrics of the present invention; Figure 8 It is a schematic structural diagram of another angle of a cutting dynamic leveling component in a laser cutting device for clothing fabrics of the present invention; Fig. 9 In a laser cutting device for clothing fabrics of the present invention Figure 8 A schematic diagram of the enlarged structure at C; Fig.10 In a laser cutting device for clothing fabrics of the present invention Figure 3 Schematic diagram of the structure at A in FIG.

[0019] In the figure: 1. Support frame; 2. Feeding roller; 3. Fabric adsorption plate; 4. Array negative pressure adsorption hole; 5. Laser protection plate; 6. Laser smoke purifier; 8. Feeding roller; 9. Displacement axis adjustment fixed point assembly; 901. Connection structure; 902. Horizontal hinge guide rail; 903. Vertical hinge guide rail; 904. Connection sliding frame; 10. Azimuth cutting adjustment assembly; 101. Connection rotating frame; 102. First control energy-saving motor; 103. First rotating connecting frame; 104. Second control energy-saving motor; 105. Second rotating connecting frame; 11. Cutting dynamic leveling assembly; 110. Side slot frame; 111. Inert gas air curtain generator; 112. Pneumatic adjustment shaft joint; 113. Gas injector; 114 , electric telescopic rod; 115, mounting frame; 116, short-distance screw rod adjustment rail; 117, sliding distance connecting frame; 118, chassis sliding frame; 119, short adjustment slide rail edge; 1190, first rotating disk; 1191, second rotating disk; 1192, pressure plate; 1193, arc pressure plate; 1194, angle control motor; 1195, rotation angle sensor; 1196, short adjustment rod; 1197, drive motor; 12, photoelectric detection sensor; 13, first guide rail frame; 14, second guide rail frame; 15, positioning sliding seat; 16, micro electric guide rod; 17, negative pressure control adsorption end; 18, laser cutting generator; 19, positive and negative control drive gear; 20, sliding edge; 21, rack. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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 creative work are within the scope of protection of the present invention.

[0021] In the field of laser cutting of clothing fabrics, the existing technology has many inconveniences.

[0022] 1. In terms of fabric cutting, it is difficult for existing devices to accurately control the fabric fixing and cutting process. For example, when fixing the fabric, it is impossible to automatically and accurately adjust the adsorption area according to the fabric size and thickness, which causes the fabric to be easily displaced and wrinkled during the cutting process, affecting the cutting accuracy and quality; 2. During the cutting operation, the position and angle adjustment of the cutting head is not flexible and accurate enough to meet the needs of complex patterns and diversified cutting. Moreover, during the cutting process, there is a lack of effective dynamic leveling means. When the fabric is deformed, it cannot be adjusted in time, resulting in the deviation of the cutting line and poor cutting effect. 3. At the same time, the heat generated during the cutting process will cause problems such as thermal deformation of the fabric. The existing device has no effective isolation and protection measures, and the heat-affected zone is large, which seriously affects the subsequent performance of the fabric.

[0023] The present invention aims to solve the problems in the prior art and achieve high-precision and high-quality laser cutting of clothing fabrics through innovative structural design and control methods.

[0024] The purpose of the present invention is to provide a laser cutting device and a cutting method for clothing fabrics, so as to solve the problems in the prior art such as inaccurate fabric fixing, inflexible adjustment of the cutting head, lack of dynamic leveling and insufficient thermal protection.

[0025] To achieve the above purpose, the present invention provides the following technical solutions: Figure 1 , Figure 2 and Figure 5 Shown: A laser cutting device for clothing fabrics, comprising: The support frame 1 and the fabric adsorption plate 3, the top of the support frame 1 is respectively provided with a sliding edge 20 and a rack 21 for mounting the fabric adsorption plate 3; The fabric adsorption plate 3 is slidably connected to the top of the support frame 1, and an array of negative pressure adsorption holes 4 are provided on its surface for automatically adjusting the adsorption area according to the fabric size and thickness; The laser cutting generator 18 has an azimuth cutting adjustment component 10 installed at its side end, and dynamic cutting leveling components 11 are symmetrically installed at the left and right ends of the laser cutting generator 18 .

[0026] The displacement axis adjustment fixed point component 9 includes a transverse hinge guide rail 902, a vertical hinge guide rail 903 and a connecting sliding frame 904, which is installed on the top of the support frame 1 through a connecting structure 901, driving the azimuth cutting adjustment component 10 and the laser cutting generator 18 to realize XY axis linkage.

[0027] The displacement axis adjustment fixed point assembly 9 further includes a connecting structure 901, which is installed on the top of the support frame 1, and the vertical hinge guide rail 903 is slidably connected to the side of the transverse hinge guide rail 902, and the connecting sliding frame 904 is slidably connected to the side of the vertical hinge guide rail 903. The transverse hinge guide rail 902 is installed on the top of the connecting structure 901, which is used to drive the vertical hinge guide rail 903 and the connecting sliding frame 904 connected to it and the azimuth cutting adjustment assembly 10 to perform displacement adjustment, and the vertical hinge guide rail 903 drives the connecting sliding frame 904 to adjust.

[0028] According to an embodiment of the present invention, first, the logic controller sends a control signal to the horizontal hinge rail 902 according to the horizontal coordinate information of the starting position, so that the vertical hinge rail 903 and the connecting sliding frame 904 thereon start to move in the horizontal direction, so that during the movement, the position sensor installed on the connecting sliding frame 904 is used to monitor the horizontal displacement in real time, and the data is fed back to the logic controller. After the horizontal positioning is completed, the logic controller sends a control signal to the vertical hinge rail 903, so that the vertical hinge rail 903 is started, driving the connecting sliding frame 904 to move in the vertical direction. Similarly, the position sensor monitors the vertical displacement in real time and feeds back to the logic controller, so that the laser cutting generator 18 has been positioned to the accurate position of the cutting starting point. When performing cutting operations of different depths (such as cutting multiple layers of clothing fabrics or engraving different depths on the fabric), pattern), so that the vertical hinge guide rail 903 can be accurately adjusted in depth according to the instructions of the logic controller, and the vertical hinge guide rail 903 is controlled to achieve a small displacement of the connecting slide frame 904 in the vertical direction, thereby adjusting the distance between the laser cutting generator 18 and the fabric, changing the focusing position and energy density of the laser beam, and meeting the requirements of cutting at different depths. During the laser cutting process, the logic controller continuously sends control signals to the horizontal hinge guide rail 902 and the vertical hinge guide rail 903 according to the preset cutting trajectory coordinates, so that the connecting slide frame 904 drives the laser cutting generator 18 to move along the predetermined cutting path, ensuring that the laser cutting generator 18 always moves accurately along the cutting trajectory, ensuring cutting accuracy and quality, and enabling the generated dynamic adjustment process to be carried out in real time during the entire cutting process to adapt to various possible changes.

[0029] In some embodiments, Figure 1 and Figure 6-Figure 9 As shown, the cutting dynamic leveling component 11 includes an electric telescopic rod 114, a short-distance screw adjustment rail 116, a pressure plate 1192, an inert gas air curtain generator 111, a pneumatic adjustment shaft joint 112 and a gas injector 113. The short-distance screw adjustment rail 116 drives the pressure plate 1192 to compensate for fabric deformation in real time. At the same time, the inert gas air curtain generator 111 drives the gas injector 113 through the pneumatic adjustment shaft joint 112 to form an argon air curtain.

[0030] The cutting dynamic leveling assembly 11 further includes a side slot frame 110, which is fixedly mounted on the side end frame surface of the laser cutting generator 18, an inert gas curtain generator 111 is mounted inside the side slot frame 110, a gas injector 113 is mounted at the bottom of a pneumatic adjustment shaft joint 112, and the pneumatic adjustment shaft joint 112 is mounted at the bottom end of the inert gas curtain generator 111, and an electric telescopic rod 114 is mounted on the side of the side slot frame 110. The gas injector 113 is driven by the pneumatic adjustment shaft joint 112 installed at the bottom to form an argon gas curtain, so that the formed air curtain isolates the cutting area from the outside air during the laser cutting operation.

[0031] The side end of the electric telescopic rod 114 is fastened with a mounting frame 115, a short-distance screw rod adjustment rail 116 is installed inside the mounting frame 115, a sliding distance connecting frame 117 is slidably connected to the outside of the short-distance screw rod adjustment rail 116, a chassis sliding frame 118 is fastened to the bottom of the sliding distance connecting frame 117, a short adjustment slide rail edge 119 is slidably connected to the bottom of the chassis sliding frame 118, a short adjustment rod 1196 is installed on the top of the chassis sliding frame 118, and a driving motor is installed on the side end of the short adjustment rod 1196 1197, the side surface of the short adjusting slide rail 119 is rotatably connected to a first rotating disk 1190 via a bottom adjusting motor, an angle control motor 1194 is installed on the side surface of the first rotating disk 1190, a rotation angle sensor 1195 is installed on the side of the first rotating disk 1190, the side end of the first rotating disk 1190 is rotatably connected to a second rotating disk 1191, the side bottom of the second rotating disk 1191 is fastened with a pressure plate 1192, and the left and right side ends of the pressure plate 1192 are integrally formed with an arc pressure plate 1193.

[0032] According to the embodiment of the present invention, specifically: after the overall device receives the start cutting instruction, the logic controller calculates the initial working parameters of the cutting dynamic leveling component 11 according to the preset cutting parameters and fabric information, including the flow rate, pressure of the inert gas curtain and the initial position of each adjustment component, the inert gas curtain generator 111 is started, and the angle and position of the gas injector 113 are adjusted by the pneumatic adjustment shaft 112, and argon gas is sprayed into the cutting area to form a stable argon gas curtain. The gas curtain effectively isolates the cutting area from the outside air, reduces the oxygen entering the cutting area, and prevents the fabric from discoloring, burning and other undesirable phenomena due to oxidation during the laser cutting process. At the same time, the argon gas can quickly take away the heat during the cutting process and reduce the temperature of the heat-affected zone. Protect the physical and chemical properties of the fabric. With the start of laser cutting, secondly, use the laser displacement sensor and visual sensor installed on the cutting dynamic leveling component 11 to monitor the flatness and deformation of the fabric in real time, so that the laser displacement sensor and the visual sensor transmit the collected data to the logic controller, and the logic controller analyzes and processes the data to determine whether the fabric is deformed and the degree, location and type of deformation (such as local depression, protrusion, distortion, etc.). According to the analysis results, when the fabric is locally uneven, the logic controller controls the electric telescopic rod 114 to extend or contract, driving the installation frame 115, the short-distance screw adjustment rail 116, the sliding distance connecting frame 117 and the chassis sliding frame 118 to rise or fall as a whole, so as to The pressing plate 1192 and the arc pressing plate 1193 are made to contact the fabric and apply appropriate pressure to adjust the fabric to a flat state. When the fabric is partially concave, the electric telescopic rod 114 is extended to make the pressing plate 1192 press down the concave part to restore it to the same height as the surrounding fabric. When the fabric is displaced in the horizontal direction, the driving motor 1197 is started to drive the short adjustment rod 1196 to rotate, thereby making the chassis sliding frame 118 slide left and right on the short adjustment slide rail edge 119. At the same time, the bottom adjustment motor can drive the first rotating disk 1190 to rotate as needed to change the angle of the chassis sliding frame 118 to achieve precise adjustment in the horizontal direction. When the fabric is twisted clockwise, the bottom adjustment motor drives the first rotating disk 1190 to rotate counterclockwise, and at the same time drives the motor 1 197 controls the chassis sliding frame 118 to move leftward to correct the distortion of the fabric. When it is necessary to adjust the contact angle between the pressing plate 1192 and the arc pressing plate 1193 and the fabric, the angle control motor 1194 is started, and under the detection feedback of the rotation angle sensor 1195, the second rotating disk 1191 is driven to rotate relative to the first rotating disk 1190, thereby changing the inclination angle of the pressing plate 1192 and the arc pressing plate 1193, so that the surface of the processed fabric has a certain curvature or the fabric is partially warped due to stress changes during the cutting process. When the edge of the fabric tends to warp upward due to laser cutting, the angle control motor 1194 drives the second rotating disk 1191 to rotate, so that the arc pressing plate 1193 presses down the warped part at a suitable angle to flatten it.During the entire cutting process, the laser displacement sensor and the visual sensor continuously monitor the state of the fabric, and the logic controller continuously receives sensor data and optimizes the adjustment parameters in real time based on the new data. If it is found that the previous adjustment effect is not ideal or the fabric has a new deformation, the logic controller immediately recalculates the adjustment amount and sends a control instruction to make the cutting dynamic leveling component 11 make corresponding adjustments again to ensure that the fabric always remains flat on the cutting line, ensuring the stability and consistency of the cutting quality.

[0033] In some embodiments, Figure 1 and Figure 6 As shown, the azimuth cutting adjustment component 10 includes a connecting rotating frame 101, a first controlled energy-saving motor 102, a first rotating connecting frame 103, a second controlled energy-saving motor 104 and a second rotating connecting frame 105. The azimuth cutting adjustment component 10 is installed on the connecting sliding frame 904 through the connecting rotating frame 101. The first controlled energy-saving motor 102 is used to drive the first rotating connecting frame 103 to achieve azimuth adjustment, and the second controlled energy-saving motor 104 is used to drive the second rotating connecting frame 105 to achieve angle fine-tuning.

[0034] The first rotating connecting frame 103 is rotatably connected to the bottom of the connecting rotating frame 101, and the connecting rotating frame 101 is installed on the surface of the connecting sliding frame 904. The first controlled energy-saving motor 102 is installed on the top surface of the connecting rotating frame 101, and is used to drive the first rotating connecting frame 103 and the second controlled energy-saving motor 104, the cutting dynamic leveling component 11, and the laser cutting generator 18 to adjust the azimuth angle.

[0035] The laser cutting generator 18 is installed on the side of the second rotating connecting frame 105, and the second control energy-saving motor 104 is installed on the inner surface of the side end of the first rotating connecting frame 103, which is used to drive the second rotating connecting frame 105 and the connected laser cutting generator 18 to adjust the azimuth angle.

[0036] According to an embodiment of the present invention, further specifically: after receiving the instruction to start cutting, the logic controller calculates the initial azimuth angle required by the laser cutting generator 18 according to the preset cutting path planning and initial cutting position information. If there is a deviation between the initial azimuth angle and the current azimuth angle, the logic controller first sends a control signal to the first control energy-saving motor 102. The first control energy-saving motor 102 starts and drives the first rotating connecting frame 103 to rotate around the top axis connected to the rotating frame 101 through the rotation of its output shaft according to the received signal, thereby achieving a larger range of initial azimuth angle adjustment. In this process, the rotation angle of the first rotating connecting frame 103 is monitored in real time by the angle sensor, and the data is fed back to the logic controller. When the rotation angle reaches the preset initial azimuth angle range, the first control energy-saving motor 102 stops rotating. After the first control energy-saving motor 102 completes the preliminary azimuth adjustment, the logic controller analyzes the rotation angle and direction required by the second control energy-saving motor 104 according to the information fed back by the angle sensor and the preset precise cutting azimuth requirement, so that the second control After receiving the control signal, the energy-saving motor 104 starts, driving the second rotating connecting frame 105 and the laser cutting generator 18 connected thereto to make more precise azimuth angle adjustments around the axis inside the side end of the first rotating connecting frame 103. The high-precision angle sensor monitors the rotation angle of the second rotating connecting frame 105 in real time and feeds back the data to the logic controller. When the rotation angle of the second rotating connecting frame 105 reaches the precise preset azimuth angle, the second controlled energy-saving motor 104 stops rotating. At this time, the laser cutting generator 18 is in the accurate initial cutting position and is ready to perform the cutting operation. During the laser cutting process, as the cutting path changes and various factors that may occur (such as local characteristic differences of the fabric, slight vibration of the equipment, etc.) are affected, the logic controller sends corresponding control signals to the first controlled energy-saving motor 102 and the second controlled energy-saving motor 104 according to the real-time monitoring data, so that they work together to make real-time fine adjustments to the azimuth angle of the laser cutting generator 18 to ensure that the laser beam can always be aligned with the cutting line at the correct angle and orientation to ensure cutting quality and accuracy.

[0037] In some embodiments, Figure 1-Figure 4 and Fig.10 As shown, the internal frame of the support frame 1 is installed with a first guide rail frame 13, and the top of the first guide rail frame 13 is connected with a second guide rail frame 14 through a sliding saddle block, the first guide rail frame 13 and the second guide rail frame 14 form X and Y axis control, the top of the second guide rail frame 14 is slidably connected with a positioning sliding seat 15, the top of the positioning sliding seat 15 is installed with a micro electric guide rod 16, and the top of the micro electric guide rod 16 is installed with a negative pressure control adsorption end 17.

[0038] Sliding edges 20 are symmetrically installed on the left and right ends of the top of the support frame 1, and a rack 21 is installed on the top side end of the support frame 1. The rack 21 and the sliding edge 20 are located at the bottom of the fabric adsorption plate 3 and form a sliding connection with it. The side end of the rack 21 is meshed with a forward and reverse control driving gear 19.

[0039] A photoelectric detection sensor 12 is installed on the side end of the fabric adsorption plate 3, a feeding roller 2 is installed on the top side end of the support frame 1, and a receiving roller 8 is installed on the other top side end of the support frame 1.

[0040] The laser protection plates 5 are symmetrically installed on the left and right sides of the support frame 1 , and the laser smoke purifier 6 is installed on the top of the laser protection plates 5 .

[0041] According to an embodiment of the present invention, further specifically: start the laser cutting device, install the roll of clothing fabric to be cut on the unwinding roller 2, and pull one end of the fabric to a suitable position above the fabric adsorption plate 3, start the forward and reverse control driving gear 19, and drive the fabric adsorption plate 3 to move along the sliding edge 20 toward the unwinding roller 2 through the rack 21, so that the edge of the fabric adsorption plate 3 close to the end of the unwinding roller 2 contacts the fabric. At this time, the micro-electric guide rod 16 begins to extend, and the negative pressure regulating adsorption end 17 is lifted upward, so that it contacts the fabric and begins to generate negative pressure adsorption force. As the adsorption force gradually increases, the fabric is firmly adsorbed on the fabric adsorption plate 3, and the photoelectric detection sensor 12 continuously monitors the adsorption condition of the fabric to ensure that the fabric is flat and has no abnormal conditions such as wrinkles and displacement. Then the first guide frame 13 and the second guide frame 14 are controlled according to the logic. The command of the device is started, and the negative pressure regulating adsorption end 17 continues to maintain the adsorption force through the coordinated movement of the sliding saddle block and the positioning sliding seat 15, ensuring that the fabric will not be displaced or deformed due to the action of the laser during the cutting process. When the laser is cutting, the laser smoke purifier 6 is continuously used to inhale and purify the smoke and dust generated by the laser cutting, and the laser protection plate 5 effectively blocks the scattering of the laser beam to prevent the laser leakage from causing harm to the operator. During the cutting process, the photoelectric detection sensor 12 continues to monitor the cutting situation of the fabric, and the positive and negative control driving gear 19 reverses to drive the fabric adsorption plate 3 to move toward the receiving roller 8. At the same time, the micro electric guide rod 16 contracts to reduce the height of the negative pressure regulating adsorption end 17, so that the cut clothing fabric is separated from the fabric adsorption plate 3 and is gradually wound onto the receiving roller 8 during the movement.

[0042] The wiring diagrams of the laser smoke purifier 6, the first controlled energy-saving motor 102, the inert gas air curtain generator 111, the angle control motor 1194, the drive motor 1197, the photoelectric detection sensor 12, the laser cutting generator 18, the laser displacement sensor, the angle sensor, the position sensor and the visual sensor in the present invention are common knowledge in the art, and their working principles are already known technologies. The models are selected according to actual use. Therefore, the control method and wiring arrangement of the laser smoke purifier 6, the first controlled energy-saving motor 102, the inert gas air curtain generator 111, the angle control motor 1194, the drive motor 1197, the photoelectric detection sensor 12, the laser cutting generator 18, the laser displacement sensor, the angle sensor, the position sensor and the visual sensor are no longer explained in detail.

[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser cutting device for clothing fabrics, characterized in that: Included are: A support frame (1) and a fabric adsorption plate (3), wherein the top of the support frame (1) is respectively provided with a sliding edge (20) and a rack (21) for mounting the fabric adsorption plate (3); the fabric adsorption plate (3) is slidably connected to the top of the support frame (1), and an array of negative pressure adsorption holes (4) are provided on its surface for automatically adjusting the adsorption area according to the size and thickness of the fabric; A laser cutting generator (18), wherein an azimuth cutting adjustment component (10) is mounted on a side end of the laser cutting generator (18), and cutting dynamic leveling components (11) are symmetrically mounted on left and right ends of the laser cutting generator (18); A displacement axis adjustment fixed point assembly (9), the displacement axis adjustment fixed point assembly (9) comprising a transverse hinge guide rail (902), a vertical hinge guide rail (903) and a connecting sliding frame (904), which is installed on the top of the support frame (1) via a connecting structure (901) to drive the azimuth cutting adjustment assembly (10) and the laser cutting generator (18) to realize XY axis linkage; The azimuth cutting adjustment component (10) comprises a connecting rotating frame (101), a first controlled energy-saving motor (102), a first rotating connecting frame (103), a second controlled energy-saving motor (104) and a second rotating connecting frame (105); the azimuth cutting adjustment component (10) is installed on the connecting sliding frame (904) via the connecting rotating frame (101); the first controlled energy-saving motor (102) is used to drive the first rotating connecting frame (103) to achieve azimuth adjustment; the second controlled energy-saving motor (104) is used to drive the second rotating connecting frame (105) to achieve angle fine adjustment; The cutting dynamic leveling component (11) comprises an electric telescopic rod (114), a short-distance screw adjustment rail (116), a pressing plate (1192), an inert gas air curtain generator (111), a pneumatic adjustment shaft joint (112) and a gas injector (113). The short-distance screw adjustment rail (116) drives the pressing plate (1192) to compensate for fabric deformation in real time, while the inert gas air curtain generator (111) drives the gas injector (113) to form an argon air curtain via the pneumatic adjustment shaft joint (112).

2. The laser cutting device for clothing fabrics according to claim 1, characterized in that: The displacement axis adjustment fixed point assembly (9) further comprises a connecting structure (901), wherein the connecting structure (901) is mounted on the top of the support frame (1), wherein the vertical hinge guide rail (903) is slidably connected to the side of the transverse hinge guide rail (902), and the connecting sliding frame (904) is slidably connected to the side of the vertical hinge guide rail (903), wherein the transverse hinge guide rail (902) is mounted on the top of the connecting structure (901) and is used to drive the vertical hinge guide rail (903) and the connecting sliding frame (904) connected thereto and the azimuth cutting adjustment assembly (10) to perform displacement adjustment, and wherein the vertical hinge guide rail (903) drives the connecting sliding frame (904) to perform adjustment.

3. The laser cutting device for clothing fabrics according to claim 2, characterized in that: The cutting dynamic leveling assembly (11) further comprises a side slot frame (110), wherein the side slot frame (110) is fixedly mounted on the side end frame surface of the laser cutting generator (18), the inert gas curtain generator (111) is mounted inside the side slot frame (110), the gas injector (113) is mounted on the bottom of the pneumatic adjustment shaft joint (112), the pneumatic adjustment shaft joint (112) is mounted on the bottom end of the inert gas curtain generator (111), and the electric telescopic rod (114) is mounted on the side of the side slot frame (110), and the gas injector (113) is driven by the pneumatic adjustment shaft joint (112) mounted on the bottom to form an argon gas curtain, so that the formed air curtain isolates the cutting area from the outside air during the laser cutting operation.

4. The laser cutting device for clothing fabrics according to claim 3 is characterized in that: The side end of the electric telescopic rod (114) is fastened to a mounting frame (115); a short-distance screw rod adjustment rail (116) is installed inside the mounting frame (115); the outside of the short-distance screw rod adjustment rail (116) is slidably connected to a sliding distance connecting frame (117); the bottom of the sliding distance connecting frame (117) is fastened to a chassis sliding frame (118); the bottom of the chassis sliding frame (118) is slidably connected to a short adjustment slide rail edge (119); a short adjustment rod (1196) is installed on the top of the chassis sliding frame (118); and a driving motor is installed on the side end of the short adjustment rod (1196). Reach (1197), the side surface of the short adjustment slide rail edge (119) is rotatably connected to a first rotating disk (1190) through a bottom adjustment motor, an angle control motor (1194) is installed on the side surface of the first rotating disk (1190), a rotation angle sensor (1195) is installed on the side of the first rotating disk (1190), the side end of the first rotating disk (1190) is rotatably connected to a second rotating disk (1191), the side bottom of the second rotating disk (1191) is fastened with a pressure plate (1192), and the left and right side ends of the pressure plate (1192) are integrally formed with an arc pressure plate (1193).

5. The laser cutting device for clothing fabrics according to claim 4, characterized in that: The inner frame of the support frame (1) is provided with a first guide rail frame (13); the top of the first guide rail frame (13) is connected to a second guide rail frame (14) via a sliding saddle block; the first guide rail frame (13) and the second guide rail frame (14) form X-axis and Y-axis control; the top of the second guide rail frame (14) is slidably connected to a positioning sliding seat (15); the top of the positioning sliding seat (15) is provided with a micro electric guide rod (16); the top of the micro electric guide rod (16) is provided with a negative pressure control adsorption end (17).

6. The laser cutting device for clothing fabrics according to claim 5, characterized in that: The left and right ends of the top of the support frame (1) are symmetrically mounted with sliding edges (20), the top side ends of the support frame (1) are mounted with racks (21), the racks (21) and the sliding edges (20) are located at the bottom of the fabric adsorption plate (3) and are slidably connected thereto, the side ends of the racks (21) are meshedly connected with forward and reverse control drive gears (19), and the side ends of the fabric adsorption plate (3) are mounted with photoelectric detection sensors (12).

7. The laser cutting device for clothing fabrics according to claim 6, characterized in that: A material discharge roller (2) is installed on the top side end of the support frame (1), a material collection roller (8) is installed on the other side end of the top of the support frame (1), a laser protection plate (5) is symmetrically installed on the left and right sides of the support frame (1), and a laser smoke purifier (6) is installed on the top of the laser protection plate (5).

8. The laser cutting device for clothing fabrics according to claim 7, characterized in that: The first rotating connecting frame (103) is rotatably connected to the bottom of the connecting rotating frame (101), and the connecting rotating frame (101) is installed on the surface of the connecting sliding frame (904). The first controlled energy-saving motor (102) is installed on the top surface of the connecting rotating frame (101) and is used to drive the first rotating connecting frame (103) and the second controlled energy-saving motor (104), the cutting dynamic leveling component (11) and the laser cutting generator (18) to adjust the azimuth angle.

9. The laser cutting device for clothing fabrics according to claim 8, characterized in that: The laser cutting generator (18) is mounted on the side of the second rotating connecting frame (105), and the second controlled energy-saving motor (104) is mounted on the inner surface of the side end of the first rotating connecting frame (103) to drive the second rotating connecting frame (105) and the connected laser cutting generator (18) to adjust the azimuth angle.

10. A cutting method of a laser cutting device for clothing fabrics, characterized in that: A laser cutting device for clothing fabrics according to any one of claims 1 to 9 is used, comprising the following steps: S1. First, the material conveying operation is performed by the unwinding roller (2) and the receiving roller (8), and then the displacement axis adjustment fixed point component (9) is used to drive the azimuth cutting adjustment component (10) and the cutting dynamic leveling component (11) laser cutting generator (18) to perform displacement adjustment; S2, after that, the fabric adsorption plate (3) is adjusted in displacement under the cooperation of the sliding edge (20), the rack (21) and the forward and reverse control driving gear (19), thereby performing a cutting operation on the fabric; S3. Secondly, during the cutting process, the azimuth cutting adjustment component (10) and the cutting dynamic leveling component (11) are adjusted so that during the cutting process, according to the deformation of the fabric, a real-time dynamic leveling operation can be actively performed when the fabric is cut, thereby ensuring that the fabric is always flat and located on the cutting line during the cutting operation; S4. At the same time, with the cooperation of the cutting dynamic leveling component (11), the gas injection angle, flow rate and speed parameters of the gas injector (113) are optimized during the cutting process, so that the generated argon gas curtain can accurately cover the cutting edge, thereby minimizing the range and impact of the heat-affected zone.

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