Laser cutting device for fabric post-processing

Abstract

This invention provides a laser cutting device for fabric post-processing, including an operating table and an adjustment structure. The adjustment structure includes a positioning plate and a moving plate that are synchronously raised and lowered, assembled by a threaded rod driven by a motor. A guard plate is vertically connected to the moving plate. Below the guard plate, a sliding and rotating laser cutter is movably mounted via an L-shaped hanging pipe and a sleeve structure. The laser cutter also intelligently integrates an infrared thermal imager to monitor the temperature of the processing area in real time and optimize the temperature melting range. In addition, the operating table is equipped with multiple sets of air jet components, which realize the function of centrally converging airflow to remove impurities and peripherally diffusing airflow to cool through multi-channel nozzles. This invention creates a working environment for removing impurities and implementing cooling through multiple sets of air jet components. The adjustment structure is set on the upper surface of the operating table near the edge, which can be used to move the laser cutter in all directions, effectively improving cutting flexibility and reconfigurability.

Description

Technical Field

[0001] This utility model relates to a machine for cutting fabrics, and more particularly to a laser cutting device for fabric post-processing, belonging to the field of fabric post-processing technology. Background Technology

[0002] In the post-processing of fabrics, the first step is often the cutting process. A laser cutting device is a cutting machine that uses lasers to cut clothing fabrics. The essence of laser cutting is to use a high-energy-density laser beam to irradiate the fabric, causing a local area to be heated to a vaporized or melted state in a very short time, thereby completing the cutting.

[0003] However, this process can easily generate localized high temperatures, which can cause the cut edges to turn yellowish-brown or black or curl inwards when cutting synthetic fiber fabrics. This affects the appearance, flatness, and dimensional accuracy of the finished product, making the carbonized areas brittle and hard, losing the softness of the textiles. They are also prone to cracking and falling off during daily wear and washing, resulting in uneven edges or holes. High temperatures directly lead to substandard processing results, increasing the rework rate. In addition, the high-temperature processing generates harmful substances that pollute the air and pose long-term health risks to the respiratory system of operators.

[0004] Therefore, it is necessary to propose a laser cutting device for post-processing of fabrics to better apply and control the self-fusion of the edges of chemical fiber fabrics when using laser cutting, thereby improving the performance of the device. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems and provide a laser cutting device for fabric post-processing.

[0006] The technical solution of this utility model is: a laser cutting device for fabric post-processing, including an operating table, with fabric clamping seats on both the left and right sides of the upper surface of the operating table. The device is characterized by further including four sets of air jet components, each set at one of the four corners of the operating table. A sliding groove is formed near the top of the upper surface of the operating table. Positioning plates are fixed at both ends along the length of the sliding groove. A guide rod and a threaded rod are arranged parallel between two positioning plates. A movable plate, with the same height as the two positioning plates, is also provided between the two positioning plates. The movable plate is sleeved on the guide rod and the threaded rod, and is slidably engaged with the guide rod and threadedly engaged with the threaded rod, respectively. The movable plate is also slidably engaged with the sliding groove. A protective plate is vertically fixed on the movable plate. At least one laser cutter is located below the protective plate. The laser cutter is slidably and rotatably mounted on an L-shaped hanging tube via a sleeve structure. The laser cutter can be angled relative to the protective plate. The L-shaped hanging tube is movably installed on the lower surface of the protective plate.

[0007] Furthermore, in the aforementioned laser cutting device for post-processing of fabrics, the jet assembly is inclined upwards and / or to the side of the worktable surface to jet airflow onto the worktable surface area, thereby creating an environment for blowing away impurities and implementing cooling.

[0008] Furthermore, in the aforementioned laser cutting device for post-processing of fabrics, the jet assembly includes an air supply unit for connecting to an external air source, an airflow channel, and a nozzle. The external air source is connected to the airflow channel through the air supply unit. The nozzle is a multi-channel nozzle, which has a central air channel and at least one peripheral air channel surrounding the central air channel.

[0009] Furthermore, in the aforementioned laser cutting device for post-processing of fabrics, the central air duct is connected to the airflow channel, and its outlet airflow is directed toward the surface of the operating table, spraying high-pressure inert gas (e.g., nitrogen or compressed air) to generate concentrated airflow force to blow away impurities (molten material and dust) from the surface of the operating table, preventing them from contaminating the lens and material surface. At the same time, the inert gas environment can prevent the fibers from oxidizing and turning yellow at high temperatures, resulting in a whiter and higher quality molten edge.

[0010] Furthermore, in the aforementioned laser cutting device for post-processing of fabrics, the peripheral air duct is connected to the airflow channel, and its outlet airflow direction forms a certain angle with the outlet direction of the central air duct. Cooling gas (such as cold air treated by refrigeration or vortex tube) is sprayed to form a wider airflow field on the surface of the operating table for large-area cooling. Its function is to rapidly cool the edge that has just been melted and sealed. This rapid cooling can refine the polymer crystal structure after melting and re-solidification, making the sealing edge stronger and softer, and avoiding the brittleness caused by slow cooling.

[0011] Specifically, the positioning plate includes a lower positioning plate, a first telescopic rod, and an upper positioning plate. The lower positioning plate is fixed on the operating table, and the upper positioning plate is movably connected to the upper end of the lower positioning plate through the first telescopic rod.

[0012] Specifically, the movable plate includes a lower movable plate, a second telescopic rod, and an upper movable plate. The bottom end of the lower movable plate extends into the sliding groove and is slidably connected to the sliding groove. The upper movable plate is movably connected to the upper end of the lower movable plate through the second telescopic rod.

[0013] Specifically, one end of the threaded rod passes through one of the positioning plates and is connected to the output shaft of a motor, which is fixed to the outside of the positioning plate.

[0014] Furthermore, in the aforementioned laser cutting device for fabric post-processing, an infrared thermal imager is coaxially integrated on the laser cutter.

[0015] Compared with existing technologies, the present invention features an adjustable structure on the upper surface of the operating table near its edge, allowing for omnidirectional movement of the laser cutter and effectively improving cutting flexibility and reconfigurability. Furthermore, by incorporating multiple jet components capable of regional airflow jetting, a working environment is created to remove impurities and provide cooling, preventing the generation of harmful substances during high-temperature processing that pollute the air and mitigating long-term respiratory health risks to operators. Additionally, the laser cutter in this invention is intelligently integrated with an infrared thermal imager, which monitors the temperature of the processing area in real time, further optimizing the melting range and improving the quality of thermal cutting. Attached Figure Description

[0016] Figure 1 This is a front view of the fabric being processed during the fabric processing operation of this utility model (with the moving plate and positioning plate lowered to their lowest height); Figure 2 This is a side view of the fabric being processed during the operation of this utility model (with the moving plate and positioning plate lowered to their lowest height); Figure 3 This is a front view of the fabric being processed during the fabric processing operation of this utility model (with the moving plate and positioning plate raised to their highest height); Figure 4 This is a side view of the fabric being processed during the fabric processing operation of this utility model (with the moving plate and positioning plate raised to their highest height); Figure 5 This is a top view of the fabric to be processed according to this utility model; Figure 6 This is a top view of the fabric being fixed and clamped during the fabric processing operation of this utility model. Figure 7 This is a top view of the fabric after it has been fixed and clamped during the fabric processing of this utility model.

[0017] The meanings of the labels in the figures are as follows: 1-operating table, 2-sliding groove, 3-lower positioning plate, 4-first telescopic rod, 5-upper positioning plate, 6-moving plate, 7-guide rod, 8-threaded rod, 9-motor, 10-guard plate, 11-L-shaped hanging pipe, 12-laser cutter, 13-sleeve structure, 14-fabric clamping seat, 15-air jet assembly. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings to make it easier to understand and master. The positioning plate, moving plate and fabric clamping seat involved are all commonly used components that are generally recognized by those skilled in the art, and there are no special requirements for them in this application.

[0019] like Figures 1-4As shown, this utility model provides a laser cutting device for fabric post-processing, including an operating table 1. Fabric clamping seats 14 are provided on both the left and right sides of the upper surface of the operating table 1. The fabric clamping seats 14 are provided with magnetic clamping strips or mechanical clamps for fixing the fabric to be cut.

[0020] According to the technical solution of this utility model, it also includes four sets of jet components 15, each of which is respectively disposed at the four corners of the operating table 1. A sliding groove 2 is opened in the upper surface of the operating table 1 near the top. Positioning plates are fixedly provided at both ends along the length direction of the sliding groove 2. A guide rod 7 and a threaded rod 8 are arranged parallel between the two positioning plates. A movable plate 6 is also provided between the two positioning plates, with the same height as the two positioning plates. The movable plate 6 is sleeved on the guide rod 7 and the threaded rod 8, and is slidably engaged with the guide rod 7 and threadedly engaged with the threaded rod 8, respectively. The movable plate 6 is also slidably engaged with the sliding groove 2. A protective plate 10 is vertically fixed on the movable plate 6. At least one laser cutter 12 is provided below the protective plate 10. The laser cutter 12 is slidably and rotatably disposed on the L-shaped hanging pipe 11 through a sleeve structure 13. The laser cutter 12 can be angled relative to the protective plate 10. The L-shaped hanging pipe 111 is movably installed on the lower surface of the protective plate 10.

[0021] Preferably, in the above structure: the jet assembly 15 is inclined toward the top and / or side of the surface of the operating table 1, for jetting airflow onto the surface area of ​​the operating table 1 to create an environment for blowing away impurities and implementing cooling.

[0022] Preferably, in the above structure: the laser cutter 12 is intelligently (and can be used in conjunction with an AI control system) coaxially integrated with an infrared thermal imager (a compact, high-speed response miniature thermal imager core, such as iRay 640A or DLP series embedded core). It monitors the temperature of the processing area in real time and feeds the temperature signal back to the main control panel on the laser cutter 12 (which can also establish a database of optimal process parameters for different materials and thicknesses, and correlate these parameters for collaborative optimization). This data is compared with the preset "optimal melting temperature range," and the laser power is dynamically adjusted to ensure that the processing temperature remains stable within the optimal range.

[0023] Preferably, in the above structure: the positioning plate includes a lower positioning plate 3, a first telescopic rod 4 and an upper positioning plate 5. The lower positioning plate 3 is fixed on the operating table 1, and the upper positioning plate 5 is movably connected to the upper end of the lower positioning plate 3 through the first telescopic rod 4, so as to control the lifting and lowering of the positioning plate according to the requirements of fabric laser cutting.

[0024] Preferably, in the above structure: the movable plate 6 includes a lower movable plate, a second telescopic rod, and an upper movable plate. The bottom end of the lower movable plate extends into the sliding groove 2 and is slidably connected to the sliding groove 2. The upper movable plate is movably connected to the upper end of the lower movable plate through the second telescopic rod, so as to control the lifting and lowering of the movable plate 6 according to the requirements of fabric laser cutting.

[0025] Preferably, in the above structure: one end of the threaded rod 8 passes through one of the positioning plates and is connected to the output shaft of a motor 9, and the motor 9 is fixed to the outside of the positioning plate. The motor 9 drives the threaded rod 4 to rotate, causing the moving plate 6 to move smoothly along the length of the guide rod 7 and the sliding groove 2, which increases the stability of the laser cutting device. Furthermore, by controlling the extension and retraction of the positioning plate and the moving plate 6 according to actual needs, the height of the moving plate relative to the surface of the operating table 1 can be adjusted.

[0026] Preferably, in the above structure: the jet assembly 15 includes an air supply section for connecting to an external air source, an airflow channel and a nozzle, the external air source being connected to the airflow channel through the air supply section; the nozzle is a multi-channel nozzle, which has a central air channel and at least one peripheral air channel surrounding the central air channel.

[0027] Specifically, in the structure of the jet assembly 15 described above, the central air passage is connected to the airflow channel, and its outlet airflow is directed toward the surface of the operating table 1. High-pressure inert gas (such as nitrogen N2) or compressed air is sprayed to generate concentrated converging airflow force to blow away impurities (molten material and soot) on the surface of the operating table 1, preventing them from contaminating the lens and material surface. At the same time, the inert gas environment can prevent the fiber from oxidizing and turning yellow at high temperature, resulting in a whiter and higher quality molten edge.

[0028] Specifically, in the structure of the jet assembly 15 described above, the peripheral air passage is connected to the airflow channel, and its outlet airflow direction forms a certain angle with the outlet direction of the central air passage. Cooling gas (such as cold air after being refrigerated or treated by a vortex tube) is sprayed to form a wider airflow field on the surface of the operating table 1 to implement large-area cooling. Its function is to comprehensively and rapidly cool the edge that has just been melted and sealed. This kind of rapid cooling can refine the polymer crystal structure after melting and re-solidification, making the sealing edge stronger and softer, and avoiding the brittleness caused by slow cooling.

[0029] In this invention, the combination of multiple jet assembly 15 capable of regional jetting to create an environment for blowing away impurities and cooling, and an adjustable laser cutter 12 integrating an infrared thermal imager, is the key technology of this invention. Figure 1 or Figure 3The focus of this presentation is on the components and specific structure of the laser cutting device. For components such as the positioning plate, moving plate, and fabric clamping base, those skilled in the art can perform conventional setups based on existing technology; therefore, this case does not have any special requirements regarding their model selection or combination.

[0030] Thus, as Figures 5-7 As shown, the present invention employs a technical solution where the fabric to be processed (e.g., synthetic fiber fabric) is fixed and straightened by fabric clamping seats 14 located on the left and right sides. First, the heights of the positioning plate and the moving plate 6 are adjusted synchronously according to actual needs to determine the distance relative to the fabric. Second, the motor 9 is started to drive the threaded rod 4 to rotate, causing the moving plate 6 to move smoothly between the two positioning plates along the length direction of the guide rod 7 and the sliding groove 2, thereby achieving free laser cutting operation with lateral movement. Finally, the angle and longitudinal movement position of the laser cutter 12 are finely adjusted by the sleeve structure 13 to start the laser cutter 12 for cutting. During the overall cutting process, multiple sets of jet components spray air in a region to create a working environment that removes impurities and cools the fabric, effectively preventing the fabric cutting edges from turning yellowish-brown or black or curling inward, thus improving the appearance flatness and dimensional accuracy of the finished product.

[0031] As can be seen from the above description, compared with the prior art, after adopting the technical solution of this utility model, the upper surface of the operating table near the edge is provided with an adjustment structure (composed of a moving plate 6, a positioning plate, a guide rod 7, a threaded rod 8, a protective plate 10, an L-shaped hanging pipe 11, and a sleeve structure 13), which can be used to move the laser cutter in all directions, effectively improving the cutting flexibility and reconfigurability; moreover, by setting up multiple sets of jet components that can perform regional jet airflow, a working environment for blowing away impurities and implementing cooling is formed, avoiding the generation of harmful substances that pollute the air during high-temperature processing, and to a certain extent curbing the long-term harm to the respiratory health of operators; in addition, the laser cutter in this invention is also intelligently integrated with an infrared thermal imager to monitor the temperature of the processing area in real time, and collaboratively optimize the temperature melting range to improve the quality of laser thermal cutting of fabrics.

[0032] The technical solution, working process and implementation effect of this utility model have been described in detail above. It should be noted that the described example is only a typical example of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A laser cutting device for fabric post-processing, comprising an operation table (1), fabric clamping seats (14) are arranged on the left and right sides of the upper surface of the operation table (1), characterized in that: It also includes four sets of jet components (15), each of which is respectively located at the four corners of the operating table (1). A sliding groove (2) is opened on the upper surface of the operating table (1) near the top. Positioning plates are fixed at both ends along the length of the sliding groove (2). A guide rod (7) and a threaded rod (8) are arranged parallel between the two positioning plates. A movable plate (6) is also provided between the two positioning plates, with the same height as the two positioning plates. The movable plate (6) is sleeved on the guide rod (7) and the threaded rod (8). On the threaded rod (8), it is slidably engaged with the guide rod (7) and threadedly engaged with the threaded rod (8), and the moving plate (6) is slidably engaged with the sliding groove (2); a guard plate (10) is vertically fixed on the moving plate (6), and at least one laser cutter (12) is provided below the guard plate (10). The laser cutter (12) is slidably and rotatably mounted on the L-shaped hanging pipe (11) through a sleeve structure (13). The L-shaped hanging pipe (11) is movably installed on the lower surface of the guard plate (10).

2. The laser cutting apparatus for fabric post-processing according to claim 1, characterized in that: The jet assembly (15) is tilted upward and / or to the side of the surface of the operating table (1).

3. The laser cutting device for fabric post-processing according to claim 1, characterized in that: The jet assembly (15) includes an air supply section for connecting to an external air source, an airflow channel and a nozzle. The external air source is connected to the airflow channel through the air supply section. The nozzle is a multi-channel nozzle, which has a central air channel and at least one peripheral air channel surrounding the central air channel.

4. The laser cutting device for fabric post-processing according to claim 3, characterized in that: The central airway is connected to the airflow channel, and its outlet airflow is directed toward the surface of the operating table (1).

5. The laser cutting device for fabric post-processing according to claim 3, characterized in that: The peripheral airway is connected to the airflow channel, and the direction of its outlet airflow forms a certain angle with the outlet direction of the central airway.

6. The laser cutting device for fabric post-processing according to claim 1, characterized in that: The positioning plate includes a lower positioning plate (3), a first telescopic rod (4) and an upper positioning plate (5). The lower positioning plate (3) is fixed on the operating table (1), and the upper positioning plate (5) is movably connected to the upper end of the lower positioning plate (3) through the first telescopic rod (4).

7. The laser cutting device for fabric post-processing according to claim 1, characterized in that: The movable plate (6) includes a lower movable plate, a second telescopic rod and an upper movable plate. The bottom end of the lower movable plate extends into the sliding groove (2) and is slidably connected to the sliding groove (2). The upper movable plate is movably connected to the upper end of the lower movable plate through the second telescopic rod.

8. The laser cutting device for fabric post-processing according to claim 1, characterized in that: One end of the threaded rod (8) passes through the positioning plate on one side and is connected to the output shaft of a motor (9), which is fixed to the outside of the positioning plate.

9. The laser cutting device for fabric post-processing according to claim 1, characterized in that: An infrared thermal imager is coaxially integrated on the laser cutter (12).

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