Cloth laser slitting processing equipment

Abstract

The utility model discloses cloth laser slitting processing equipment, and aims to provide the cloth laser slitting processing equipment which is good in universality and capable of cutting various closed patterns with different shapes and different sizes; and the cloth is tensioned and fixed conveniently and quickly, so that the production efficiency is improved, and the cloth laser slitting processing equipment is suitable for the requirement of production takt. The cloth conveying unit keeps the shape of cloth and drives the cloth to move along a straight line at a set speed; the laser slitting unit is used for slitting the cloth on the cloth conveying unit according to a preset track; and the negative pressure device is used for providing negative pressure holding force for the cloth held on the surface of the cloth conveying unit, so that the cloth moves in a set form.

Description

Technical Field

[0001] This utility model relates to the field of fabric slitting and processing technology, specifically to a fabric laser slitting and processing equipment. Background Technology

[0002] Traditional fabric slitting equipment uses blades to cut fabric, and when cutting closed patterns, it often requires matching, pre-defined blades. For different batches of products, the shapes of the closed patterns vary, necessitating the configuration of corresponding blades and the replacement of the fabric slitting equipment blades. Even within the same batch of products, although the closed pattern shapes are identical, different models may have different sizes of closed patterns, again requiring the configuration of corresponding blades and replacement of the fabric slitting equipment blades. Because traditional fabric slitting equipment has poor blade versatility, this not only results in a large number of blades and inconvenient storage and management, but also frequent blade replacements disrupt production rhythm and reduce production efficiency.

[0003] On the other hand, the fabric needs to be fixed and tensioned before cutting. Currently, fabric slitting equipment generally uses fabric clamps or needle punches to fix and tension the fabric. This method of fixing the fabric is not only inconvenient to operate, but also has low operating efficiency, affecting the production cycle and reducing production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a fabric laser slitting and processing equipment that is not only versatile and capable of cutting closed graphics of various shapes and sizes, but also convenient and quick in the fabric tensioning and fixing operation, thereby improving production efficiency and adapting to the needs of production rhythm.

[0005] The technical solution of this utility model is:

[0006] A fabric laser slitting and processing equipment, comprising:

[0007] The fabric conveying unit maintains the shape of the fabric and drives the fabric to move in a straight line at a set speed.

[0008] The laser slitting unit cuts the fabric on the fabric conveying unit along a predetermined trajectory;

[0009] A negative pressure device provides a negative pressure holding force to the fabric held on the surface of the fabric conveying unit, so that the fabric maintains its set shape and movement. This solution's fabric laser slitting equipment uses a laser slitting unit to slit the fabric on the fabric conveying unit along a predetermined trajectory. This allows for the slitting of fabric along a predetermined trajectory, enabling the cutting of various shapes and sizes of closed patterns. It can adapt to the cutting needs of different batches of products with different closed patterns, as well as the cutting needs of different sizes of closed patterns from different models within the same batch, demonstrating good versatility. Furthermore, it eliminates the need for frequent tool changes, which helps improve production efficiency and adapt to production cycle requirements.

[0010] On the other hand, a fabric conveying unit is used to convey fabric at a set speed, and a negative pressure device is used to provide negative pressure holding force to the fabric held on the surface of the fabric conveying unit, so that the fabric maintains the set shape of movement; in this way, the fabric on the surface of the tension conveying unit can be fixed and tensioned through negative pressure, so that the fabric maintains a certain tension, thereby avoiding changes in the shape of the fabric during the fabric cutting process, which would affect the normal cutting of the fabric; moreover, the operation is convenient and quick, without the need for manual operation of fabric clamps or needle punching, thereby improving production efficiency and adapting to the needs of production rhythm.

[0011] Preferably, the laser slitting unit includes a laser slitting device located above the fabric conveying unit.

[0012] Preferably, the laser slitting unit includes multiple laser slitting devices, each located above the fabric conveying unit, and arranged sequentially perpendicular to the fabric's movement direction. This laser slitting unit, in conjunction with the fabric conveying unit, can dynamically slit closed patterns into the fabric. Specifically...

[0013] The fabric is held in shape by a fabric conveying unit and moved in a straight line at a set speed. Multiple laser cutting devices in the laser cutting unit then cut the fabric along a predetermined trajectory. Each laser cutting device is responsible for cutting a section of a closed shape. The cutting paths of all laser cutting devices together form the closed shape, thus achieving the cutting of closed shapes through the collaborative operation of multiple laser cutting devices. Furthermore, although the set cutting width of each laser cutting device is fixed and small, the actual cutting width of the laser cutting device becomes a strip-shaped width because the fabric is moved in a straight line at a set speed by the fabric conveying unit during the cutting process (equivalent to the fabric remaining stationary while the laser cutting unit moves in a straight line at a set speed). This strip-shaped width is parallel to the direction of fabric movement, effectively increasing the actual cutting width of the same laser cutting device and enabling it to cut longer cutting paths (creating longer cutting paths in the direction of fabric movement). Based on this, the fabric laser slitting equipment of this solution is advantageous in achieving the slitting of closed patterns with fewer laser slitting devices; especially when the length of the closed pattern in the direction of fabric movement is long, it can effectively reduce the number of laser slitting devices required.

[0014] Preferably, the laser slitting device is set to slitting area as a square with a side length of L.

[0015] Preferably, a cleaning device is also included to remove impurities that remain on the surface of the fabric conveying unit during the slitting process. This ensures that the fabric is laid out in a predetermined shape and held on the surface of the fabric conveying unit, facilitating repeated feeding of the fabric to be cut by the fabric conveying unit.

[0016] Preferably, the fabric conveying unit uses a belt conveyor. The surface of the conveyor belt has several suction holes, and a negative pressure device is located within the loop formed by the conveyor belt. Thus, in actual operation, the fabric loading station can be set on the side of the conveyor belt near the input end. At the loading station, the fabric to be cut is laid on the surface of the conveyor belt in a predetermined shape at a certain frequency, and the negative pressure device provides negative pressure to keep the fabric on the conveyor belt surface. Then, the fabric is smoothly conveyed to the cutting station (located at the position corresponding to the laser slitting unit) while maintaining the predetermined shape. The laser slitting unit cuts the fabric on the conveying unit along a predetermined trajectory. After the laser slitting unit completes the fabric cutting, the fabric is directly output via the conveyor belt. This cycle repeats, achieving efficient cutting processing, thereby improving production efficiency and adapting to production rhythm requirements.

[0017] Preferably, the conveyor belt includes an upper conveyor belt and a lower conveyor belt, and the negative pressure device includes a negative pressure box extending along the direction of the conveyor belt and a negative pressure pump for evacuating the inner cavity of the negative pressure box. The negative pressure box is located between the upper conveyor belt and the lower conveyor belt.

[0018] The upper surface of the negative pressure box is open, and the upper section of the conveyor belt covers the upper surface opening of the negative pressure box; in this way, the negative pressure inside the negative pressure box can be applied to the fabric through the adsorption holes on the surface of the conveyor belt, thereby smoothly conveying the fabric through the conveyor belt and keeping the fabric moving in a set shape.

[0019] Alternatively, the upper surface of the negative pressure box may have several evenly distributed openings, and the lower surface of the upper conveyor belt may be close to the upper surface of the negative pressure box. In this way, the negative pressure inside the negative pressure box can be applied to the fabric through the adsorption holes on the surface of the conveyor belt, thereby allowing the fabric to be smoothly transported by the conveyor belt and kept in a set shape.

[0020] Preferably, a cleaning device is also included, comprising a rotating roller brush and a roller motor that drives the roller brush to rotate. The roller brush is located below the conveyor belt, with its bristles in close contact with the lower surface of the conveyor belt. This design arranges the roller brush below the conveyor belt, with its bristles in close contact with the lower surface of the conveyor belt. In this way, the impurities cleaned by the roller brush will fall off under their own weight, and the effectively cleaned impurities will fall back onto the conveyor belt surface, thereby improving the cleaning effect.

[0021] Preferably, the fabric conveying unit includes a horizontal track, a worktable that slides along the horizontal track, and a translation drive mechanism that drives the worktable to move at a set speed. The upper surface of the worktable is a working plane. The negative pressure device includes a negative pressure chamber located inside the worktable and a negative pressure pump that evacuates the negative pressure chamber. Several adsorption holes communicating with the negative pressure chamber are provided on the working plane. Thus, in actual operation, the fabric to be cut is laid on the working plane in a set shape, and the negative pressure device provides a negative pressure holding force to keep the fabric on the working plane. Then, the translation drive mechanism drives the worktable and the fabric on it to move in a straight line while maintaining the set shape, moving the fabric to the cutting station (located at the position corresponding to the laser slitting unit). The laser slitting unit then cuts the fabric on the fabric conveying unit along a predetermined trajectory.

[0022] Preferably, the laser slitting unit uses the following parameters for cutting fabric: laser wavelength of 0.8-20 micrometers, repetition frequency of 1-3 MHz, and pulse width of less than 100 ps. Through extensive research and development and numerous experiments, the inventors discovered that setting the following cutting parameters during fabric cutting—laser wavelength of 0.8-20 micrometers, repetition frequency of 1-3 MHz, and pulse width of less than 100 ps—effectively prevents crystallization at the fabric cutting edges, resulting in a smooth cut surface suitable for skin contact and ensuring slitting quality.

[0023] The advantages of this utility model are: it is not only versatile and can cut closed graphics of various shapes and sizes, but also the fabric tensioning and fixing operation is convenient and quick, thereby improving production efficiency and adapting to the needs of production rhythm. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a fabric laser slitting and processing equipment according to the present invention.

[0025] In the picture:

[0026] Fabric conveying unit 1, conveyor belt 1.1;

[0027] Laser slitting unit 2, laser slitting device 2.1

[0028] Negative pressure device 3, negative pressure box 3.1;

[0029] Cleaning device 4, roller brush 4.1. Detailed Implementation

[0030] Specific Implementation Example 1, such as Figure 1 As shown, a fabric laser slitting processing equipment includes a fabric conveying unit 1, a laser slitting unit 2, and a negative pressure device 3.

[0031] Fabric conveying unit 1 maintains the fabric's shape and drives it to move in a straight line at a set speed. Laser slitting unit 2 cuts the fabric on fabric conveying unit 1 along a predetermined trajectory. Negative pressure device 3 provides negative pressure holding force to the fabric held on the surface of fabric conveying unit 1, so that the fabric maintains its set shape.

[0032] In this embodiment, the fabric conveying unit 1 is a belt conveyor. The surface of the conveyor belt 1.1 of the belt conveyor is evenly distributed with several adsorption holes. The negative pressure device 3 is located within the loop formed by the conveyor belt 1.1. The conveyor belt 1.1 includes an upper conveyor belt and a lower conveyor belt. The negative pressure device 3 includes a negative pressure box 3.1 extending along the direction of the conveyor belt 1.1 and a negative pressure pump for evacuating the inner cavity of the negative pressure box 3.1. The negative pressure box 3.1 is located between the upper and lower conveyor belts.

[0033] In one example, the upper surface of the negative pressure box 3.1 is open, and the upper section of the conveyor belt covers the opening of the upper surface of the negative pressure box 3.1. In this way, the negative pressure inside the negative pressure box 3.1 can be applied to the fabric through the adsorption holes on the surface of the conveyor belt 1.1, thereby smoothly conveying the fabric through the conveyor belt 1.1 and keeping the fabric moving in a set shape.

[0034] In another example, the upper surface of the negative pressure box 3.1 is provided with several evenly distributed openings, and the lower surface of the upper conveyor belt is close to the upper surface of the negative pressure box 3.1. In this way, the negative pressure inside the negative pressure box 3.1 can be applied to the fabric through the adsorption holes on the surface of the conveyor belt 1.1, thereby smoothly conveying the fabric through the conveyor belt 1.1 and keeping the fabric in a set shape.

[0035] In actual operation, the fabric loading station is set on one side of the conveyor belt 1.1 near the input end. At the loading station, the fabric to be cut is laid on the upper surface of the conveyor belt 1.1 in a set shape at a certain frequency, and the negative pressure device 3 provides negative pressure holding force to keep the fabric on the upper surface of the conveyor belt 1.1. Then, the fabric is smoothly conveyed to the cutting station (located at the position corresponding to the laser cutting unit 2) through the conveyor belt 1.1. The laser cutting unit 2 cuts the fabric on the fabric conveying unit 1 along a predetermined trajectory. After the laser cutting unit 2 completes the fabric cutting, the fabric is directly output through the conveyor belt 1.1. This cycle is repeated to achieve efficient cutting processing, thereby improving production efficiency and adapting to the needs of production rhythm.

[0036] In this embodiment, a laser slitting unit 2 is used to slit the fabric on the fabric conveying unit 1 along a predetermined trajectory. In this way, the fabric can be slit along a predetermined trajectory by the fabric laser slitting processing equipment, so as to cut closed patterns of various shapes and sizes. It can not only meet the cutting needs of different closed patterns of different batches of products, but also meet the cutting needs of different sizes of closed patterns of different models of products in the same batch. It has the characteristics of good versatility; there is no need to frequently change the tool, which helps to improve production efficiency and adapt to the needs of production cycle.

[0037] On the other hand, the fabric conveying unit 1 is used to convey the fabric at a set speed, and the negative pressure device 3 provides negative pressure holding force to the fabric held on the surface of the fabric conveying unit 1 so that the fabric maintains the set shape movement; in this way, the fabric on the surface of the tension conveying unit can be fixed and tensioned through negative pressure, so that the fabric maintains a certain tension, thereby avoiding changes in the shape of the fabric during the fabric cutting process, which would affect the normal cutting of the fabric; moreover, the operation is convenient and quick, without the need for manual operation of fabric clamps or needle punching, thereby improving production efficiency and adapting to the needs of production rhythm.

[0038] Furthermore, such as Figure 1As shown, a fabric laser slitting processing device also includes a cleaning device 4. The cleaning device 4 cleans the impurities that remain on the surface of the fabric conveying unit 1 during the slitting process. In this way, the cleaning device can clean the impurities that remain on the surface of the fabric conveying unit 1 during the slitting process, ensuring that the fabric can be laid in a set shape and maintained on the surface of the fabric conveying unit 1, which facilitates the repeated conveying of the fabric to be cut by the fabric conveying unit 1.

[0039] In one embodiment, the cleaning device 4 includes a rotatably mounted roller brush 4.1 and a roller motor that drives the roller brush to rotate. The roller brush 4.1 is located below the conveyor belt 1.1, with its bristles in close contact with the lower surface of the conveyor belt 1.1. This arrangement of the roller brush below the conveyor belt 1.1, with its bristles in close contact with the lower surface of the conveyor belt 1.1, allows impurities cleaned by the roller brush to fall off under their own weight, and the effectively cleaned impurities then fall back onto the surface of the conveyor belt 1.1, thereby improving the cleaning effect.

[0040] There are one or more roller brushes 4.1. Multiple roller brushes 4.1 are distributed sequentially along the conveyor belt's conveying direction. Each roller brush corresponds to one roller motor. All roller brushes 4.1 are located below the conveyor belt 1.1. In specific arrangements, the positions of each roller brush 4.1 below the conveyor belt can be arranged as needed. For example, there may be three roller brushes 4.1, one near the inlet end of the conveyor belt, another near the outlet end, and the third located in the middle of the conveyor belt.

[0041] In another embodiment, the cleaning device includes a cleaning nozzle located below the conveyor belt 1.1, which blows air onto the lower surface of the conveyor belt 1.1. Impurities remaining on the surface of the conveyor belt 1.1 are removed by blowing air onto its lower surface through the cleaning nozzle.

[0042] Specific embodiment two: a fabric laser slitting processing equipment, including a fabric conveying unit, a laser slitting unit and a negative pressure device.

[0043] The fabric conveying unit maintains the fabric's shape and drives it along a straight line at a set speed. The laser slitting unit cuts the fabric on the fabric conveying unit along a predetermined trajectory. The negative pressure device provides a negative pressure holding force to the fabric held on the surface of the fabric conveying unit, so that the fabric maintains its set shape.

[0044] In this embodiment, the fabric conveying unit includes a horizontal track, a worktable that slides along the horizontal track, and a translation drive mechanism (not shown in the figure) that drives the worktable to move at a set speed. The translation drive mechanism is an electric cylinder, a linear module, or other existing translation drive mechanisms available on the market. The upper surface of the worktable is a working plane.

[0045] The negative pressure device includes a negative pressure chamber located within the worktable and a negative pressure pump for evacuating the chamber. Several suction holes communicating with the negative pressure chamber are provided on the working surface. These suction holes are evenly distributed across the working surface. Thus, the negative pressure within the negative pressure chamber can be applied to the fabric through the suction holes on the working surface, maintaining the fabric in a predetermined shape.

[0046] In actual operation, the fabric to be cut is laid on the working plane in a set shape, and the negative pressure device provides negative pressure holding force to keep the fabric on the working plane; then, the translation drive mechanism drives the worktable and the fabric on it to move in a straight line while maintaining the set shape, and moves the fabric to the cutting station (the cutting station is located at the position corresponding to the laser cutting unit). The laser cutting unit cuts the fabric on the fabric conveying unit along a predetermined trajectory.

[0047] This embodiment uses a laser slitting unit to slit the fabric on the fabric conveying unit along a predetermined trajectory. In this way, the fabric can be slit along a predetermined trajectory by the fabric laser slitting processing equipment, so as to cut closed patterns of various shapes and sizes. It can not only meet the cutting needs of different closed patterns of different batches of products, but also meet the cutting needs of different sizes of closed patterns of different models of products in the same batch. It has the characteristics of good versatility; there is no need to frequently change the tool, which helps to improve production efficiency and adapt to the needs of production cycle.

[0048] On the other hand, a fabric conveying unit is used to convey fabric at a set speed, and a negative pressure device is used to provide negative pressure holding force to the fabric held on the surface of the fabric conveying unit, so that the fabric maintains the set shape of movement; in this way, the fabric on the surface of the tension conveying unit can be fixed and tensioned through negative pressure, so that the fabric maintains a certain tension, thereby avoiding changes in the shape of the fabric during the fabric cutting process, which would affect the normal cutting of the fabric; moreover, the operation is convenient and quick, without the need for manual operation of fabric clamps or needle punching, thereby improving production efficiency and adapting to the needs of production rhythm.

[0049] Furthermore, a fabric laser slitting processing device also includes a cleaning device. This device cleans away impurities generated on the surface of the fabric conveying unit during the slitting process. Thus, the cleaning device can remove impurities generated on the surface of the fabric conveying unit during the slitting process, ensuring that the fabric is laid out in a predetermined shape and maintained on the surface of the fabric conveying unit, facilitating the repeated conveying of fabric to be cut by the fabric conveying unit.

[0050] In this embodiment, the cleaning device includes a cleaning nozzle located above the working plane, which blows air towards the working plane. After the laser slitting unit completes the slitting of the fabric, the cleaning nozzle blows air towards the working plane of the conveyor belt to clean any remaining impurities on the working plane.

[0051] In this specific embodiment, the remaining structure is the same as in specific embodiment one or specific embodiment two, except that...

[0052] The laser slitting unit 2 includes one or more laser slitting devices 2.1. Each laser slitting device 2.1 includes a picosecond pulsed laser, a beam expander, a field mirror, and a galvanometer. Since the laser slitting device 2.1 is existing technology, its specific structure is not the focus of this application; therefore, this application will not elaborate on the specific methods and structures of the laser slitting device 2.1 or other conventional technical means. In this embodiment, each laser slitting device 2.1 also includes a cooling machine, which is used to cool the temperature of the laser slitting device 2.1 during the slitting process to prevent damage due to overheating.

[0053] The laser slitting device 2.1 is fixed in position. It is located above the fabric conveying unit 1. The laser slitting unit 22 is set to slitting a square with a side length of L. L is between 100-300mm. For example, the laser slitting device 2.1 can be set to slitting a square with a side length of 230mm; one laser slitting device 2.1 can cut fabric with a cutting area within 230mm; three laser slitting devices 2.1 working together can cut large areas of fabric with a cutting area between 200mm and 600mm. In other words, for different cutting sizes, different numbers of laser slitting devices 2.1 can be configured in the laser slitting unit 2 of this application to meet the slitting needs of different cutting sizes.

[0054] In this embodiment, when the slitting speed of the laser slitting device 2.1 is determined to be 100 m / min, the operating power of the laser slitting device 2.1 is not less than 80 W. When the slitting speed of the laser slitting device 2.1 is determined to be 200 m / min, the operating power of the laser slitting device 2.1 is not less than 100 W. When the slitting speed of the laser slitting device 2.1 is determined to be 300 m / min, the operating power of the laser slitting device 2.1 is not less than 200 W. The operating power of the laser slitting device 2.1 is related to the slitting speed in the specific processing. As the slitting speed increases, the operating power of the laser slitting device 2.1 is increased accordingly to ensure the slitting quality.

[0055] The fabric laser slitting equipment of this embodiment can employ either a static slitting process or a dynamic slitting process. Specifically...

[0056] In one embodiment, the laser slitting unit 2 includes a laser slitting device 2.1, which is located above the fabric conveying unit 1. This embodiment is suitable for using a static slitting process to cut the fabric. Specifically, after the fabric conveying unit 1 conveys the fabric to the cutting station (located at the position corresponding to the laser slitting unit 2), the fabric conveying unit 1 stops moving, leaving the fabric stationary. Then, the laser slitting unit 2 cuts the fabric on the fabric conveying unit 1 along a predetermined trajectory (static slitting process refers to cutting the fabric along a predetermined trajectory while it is stationary, using the laser slitting unit 2).

[0057] In the second implementation, such as Figure 1 As shown, the laser slitting unit 2 includes multiple laser slitting devices 2.1 (e.g., two, three, or more laser slitting devices 2.1; the laser slitting unit 2 in the figure includes three laser slitting devices 2.1). Each laser slitting device 2.1 is located above the fabric conveying unit 1, and the laser slitting devices 2.1 are arranged sequentially perpendicular to the fabric movement direction. In this embodiment, it is suitable for using a dynamic slitting process to slit closed patterns of fabric. Specifically,

[0058] The fabric is kept in shape by the fabric conveying unit 1 and driven to move along a straight line at a set speed. The fabric moving at a set speed on the fabric conveying unit 1 is cut along a predetermined trajectory by multiple laser cutting devices 2.1 of the laser cutting unit 2 (each laser cutting device 2.1 is responsible for cutting a section of the cutting path of the closed shape, and the cutting paths of all laser cutting devices 2.1 together form the closed shape). Thus, the closed shape is cut by multiple laser cutting devices 2.1 working together. Because a dynamic slitting process is used to cut closed patterns in the fabric, although the set slitting width of each laser slitting device 2.1 is fixed and small, during the slitting process, the fabric conveying unit 1 can drive the fabric to move linearly at a set speed (equivalent to the fabric remaining stationary while the laser slitting unit 2 moves linearly at a set speed). Thus, the actual slitting width of the laser slitting device 2.1 becomes a strip-shaped width, with its length parallel to the fabric's movement direction. This effectively increases the actual slitting width of the same laser slitting device 2.1, allowing it to cut longer cutting paths (creating longer cutting paths in the fabric's movement direction). Based on this, the fabric laser slitting processing equipment of this solution is advantageous in using fewer laser slitting devices 2.1 to slitting closed patterns; especially when the length of the closed pattern in the fabric's movement direction is long, it can effectively reduce the number of laser slitting devices 2.1 required.

[0059] It should be noted that, in the second embodiment of this example, a static slitting process can also be used to slit the fabric.

[0060] In this specific embodiment four, the remaining structure is the same as in specific embodiment one or specific embodiment two, except that...

[0061] In this embodiment, the parameters for the laser cutting unit 2 to cut the fabric are as follows: laser wavelength is 0.8-20 micrometers, repetition frequency is 1-3MHz, and pulse width is less than 100ps. Specifically, the parameters for the laser cutting device 2.1 to cut the fabric are as follows: laser wavelength is 0.8-20 micrometers, repetition frequency is 1-3MHz, and pulse width is less than 100ps.

[0062] In one example, the laser parameters set for each laser processing unit are: a laser wavelength of 800 nm, a repetition frequency of 1.5 MHz, and a pulse width of less than 80 ps.

[0063] In another example, the laser parameters set for each laser processing unit are: a laser wavelength of 1064 nm, a repetition frequency of 2 MHz, and a pulse width of less than 15 ps.

[0064] In the third example, the laser parameters set for each laser processing unit are: laser wavelength of 12 micrometers, repetition frequency of 3 MHz, and pulse width of less than 40 ps.

[0065] In the fourth example, the laser parameters set for each laser processing unit are: laser wavelength of 20 micrometers, repetition frequency of 1 MHz, and pulse width of less than 60 ps.

[0066] Through extensive research and development and numerous experiments, the inventors discovered that using the laser parameters described in this embodiment during fabric cutting can effectively prevent crystallization at the fabric cutting edges, resulting in a better tactile feel at the cut surface to meet the requirements of skin contact and ensuring cutting quality.

[0067] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent transformations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A fabric laser slitting and processing equipment, characterized in that it comprises: The fabric conveying unit maintains the shape of the fabric and drives the fabric to move in a straight line at a set speed. The laser slitting unit cuts the fabric on the fabric conveying unit along a predetermined trajectory; The negative pressure device provides a negative pressure holding force to the fabric held on the surface of the fabric conveying unit so that the fabric maintains a set shape and moves. The laser slitting unit includes multiple laser slitting devices arranged sequentially along the direction perpendicular to the fabric movement direction. The laser slitting devices are located above the fabric conveying unit. Each laser slitting device is responsible for cutting a section of the cutting path of the closed pattern. The cutting paths of all laser slitting devices together form the closed pattern.

2. The fabric laser slitting equipment according to claim 1, characterized in that, The laser slitting device is set to slitting area as a square with a side length of L.

3. A fabric laser slitting and processing equipment according to claim 1 or 2, characterized in that, It also includes a cleaning device to remove impurities that remain on the surface of the fabric conveying unit during the slitting process.

4. A fabric laser slitting and processing equipment according to claim 1 or 2, characterized in that, The fabric conveying unit adopts a belt conveyor, and the surface of the conveyor belt of the belt conveyor is distributed with several adsorption holes, and the negative pressure device is located in the loop formed by the conveyor belt.

5. The fabric laser slitting equipment according to claim 4, characterized in that, The conveyor belt includes an upper conveyor belt and a lower conveyor belt. The negative pressure device includes a negative pressure box extending along the direction of the conveyor belt and a negative pressure pump for evacuating the inner cavity of the negative pressure box. The negative pressure box is located between the upper conveyor belt and the lower conveyor belt. The upper surface opening of the negative pressure box is covered by the upper section of the conveyor belt. Alternatively, the upper surface of the negative pressure box may have several evenly distributed openings, with the lower surface of the upper conveyor belt pressed against the upper surface of the negative pressure box.

6. The fabric laser slitting equipment according to claim 4, characterized in that, It also includes a cleaning device, which includes a rotating roller brush and a roller motor that drives the roller brush to rotate. The roller brush is located below the conveyor belt, and the bristles of the roller brush are in close contact with the lower surface of the conveyor belt.

7. A fabric laser slitting processing device according to claim 1 or 2, characterized in that, The fabric conveying unit includes a horizontal track, a worktable that slides along the horizontal track, and a translation drive mechanism that drives the worktable to move at a set speed. The upper surface of the worktable is a working plane.

8. The fabric laser slitting equipment according to claim 7, characterized in that, The negative pressure device includes a negative pressure chamber set in the workbench and a negative pressure pump for evacuating the negative pressure chamber. The working surface is provided with a number of adsorption holes that communicate with the negative pressure chamber.

9. A fabric laser slitting processing device according to claim 1 or 2, characterized in that, The laser cutting unit cuts the fabric using the following parameters: laser wavelength of 0.8-20 micrometers, repetition frequency of 1-3MHz, and pulse width of less than 100ps.

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