A laser engraving machine for fabric

Abstract

The utility model provides a kind of laser engraving machine for fabric, comprising: including rack, the laser cutting device being arranged in rack and the hollow mesa being arranged below the laser cutting device, the hollow mesa below is equipped with air suction machine, still including electrostatic generator being arranged on rack and the electrically conductive strip being arranged in the lower side of the hollow mesa and with the electrostatic generator electric connection, double fixation of negative pressure suction and electrostatic suction, break the applicable limitation of single adsorption mode, can realize the stable fixation to light and thin cloth material, elastic fabric, non-breathable cloth material and other various cloth materials.

Description

Technical Field

[0001] This utility model relates to the field of laser engraving machines, and in particular to a laser engraving machine for fabrics. Background Technology

[0002] A laser cutting machine is a precision device that uses a high-energy laser beam to cut or engrave materials. The immense energy at the moment the laser comes into contact with the material causes the contact surface to vaporize, ultimately achieving the effect of laser cutting and engraving. The modern garment manufacturing industry requires a large amount of fabric cutting, therefore laser cutting machines offer high-quality and high-efficiency results in the fabric cutting process for garment production.

[0003] Existing technologies, such as the one disclosed in Chinese Patent Publication No. CN223129645U, include a precision fabric laser cutting machine, comprising a base and a transverse frame mounted on the base. The base also has a processing table. A laser head is slidably mounted in the middle of the transverse frame. The processing table includes a connecting frame with an opening at the top, mounted on the base, and a negative pressure pipe penetrating the bottom of the connecting frame. A negative pressure fan is installed inside the negative pressure pipe. Activating the negative pressure fan creates negative pressure in the pipe, drawing air out and creating suction through an adsorption block to attract the fabric and remove the fumes generated during laser cutting. However, this technology has the following drawbacks: ① Limited fixation: For thin fabrics (such as silk or mesh) or smooth synthetic fiber fabrics, the negative pressure adsorption force is easily unevenly distributed due to poor fabric permeability and loose fit, leading to localized displacement during cutting; ② Edge fixation failure: When the edge of the fabric exceeds the range of negative pressure suction, the negative pressure cannot function, and the edge easily lifts, affecting cutting accuracy. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In order to solve the technical problem that negative pressure adsorption cannot fully and stably fix the fabric to be cut in the prior art, this utility model provides a laser cutting machine for fabric.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A laser engraving machine for fabrics, comprising:

[0009] It includes a frame, a laser cutting device located within the frame, and a perforated table located below the laser cutting device. A suction fan is located below the perforated table. It also includes an electrostatic generator located on the frame and a conductive strip located below the perforated table and electrically connected to the electrostatic generator.

[0010] Preferably, the conductive strips are arranged in a Z-shape.

[0011] Preferably, the hollowed-out table surface has through holes evenly distributed, and the sides of adjacent through holes are wavy.

[0012] Preferably, the transverse length of the through hole is 0.5-1cm and the longitudinal length of the through hole is 0.5-1cm.

[0013] Preferably, it also includes a PTFE coating applied to the upper side of the perforated table surface.

[0014] Preferably, the PTFE coating thickness is 0.1-0.5 mm.

[0015] Preferably, an air collection hood is provided between the suction fan and the hollowed-out table surface, and the size of the air collection hood gradually decreases along the direction closer to the suction fan.

[0016] (III) Beneficial Effects

[0017] The beneficial effects of this utility model are as follows: When the above technical solution is adopted, the fabric to be cut is placed on the hollow table, and the suction fan is started to generate negative pressure adsorption force to make the fabric stick tightly to the hollow table; at the same time, the electrostatic generator is started, and the static electricity is conducted to the hollow table through the conductive strip, so that the hollow table forms a stable electrostatic adsorption field, which further fixes the fabric. The dual fixation of negative pressure adsorption and electrostatic adsorption breaks the applicability limitation of a single adsorption method and can achieve stable fixation of various fabrics such as thin fabrics, elastic fabrics, and non-breathable fabrics. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial cross-sectional view of the present invention;

[0020] Figure 3 This is a top view of the conductive strip of this utility model;

[0021] Figure 4 This is a top view of the hollowed-out tabletop of this utility model.

[0022] [Explanation of Labels in the Attached Image]

[0023] 1. Laser cutting device; 2. Hollow table; 3. Fan; 4. Static generator; 5. Conductive strip; 6. Through hole; 7. PTFE coating; 8. Air hood; 9. Pull-out handle; 10. Front cover; 11. Waste drawer; 12. Frame. Detailed Implementation

[0024] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Please refer to Figure 1This embodiment provides a laser cutting machine for fabrics, including a frame 12, a perforated table 2 disposed within the frame 12, a laser cutting device 1, and an adsorption device. It also includes a front cover 10 movably disposed on the frame 12 and located above the perforated table 2. Before cutting, when the fabric moves and aligns on the perforated table 2, the front cover 10 is flipped up and fixed for easy operation. After the fabric is laid out, the front cover 10 is lowered, and the adsorption device is activated to fix the fabric on the perforated table 2, improving cutting accuracy. When the laser cutting device 1 is working, it can isolate the inside and outside of the frame 12, ensuring operator safety and preventing accidental contact.

[0026] Please refer to Figure 1 and Figure 2 The cutting device includes a suction fan 3 located below the perforated tabletop 2, an electrostatic generator 4 mounted on the frame 12, and a conductive strip 5 fixed below the perforated tabletop 2 and electrically connected to the electrostatic generator 4. The suction fan 3 actively draws air out of the semi-enclosed frame 12, creating a negative pressure state in this area lower than the external atmospheric pressure. This pressure difference between the ambient atmospheric pressure and the internal negative pressure allows the fabric on the perforated tabletop 2 to adhere tightly. Simultaneously, the electrostatic generator 4 is activated, and through the conductive strip 5, a stable electrostatic adsorption field is formed on the perforated tabletop 2. The electrostatic adsorption force and the suction force of the suction fan 3 work together for double fixation, overcoming the limitations of single adsorption methods and enabling stable fixation of various fabrics, including thin fabrics, elastic fabrics, and non-breathable fabrics.

[0027] In this embodiment, the electrostatic generator 4 is an adjustable electrostatic generator with an output voltage range of 1000-5000V to adapt to the electrostatic adsorption requirements of different fabric materials and thicknesses. For example, for synthetic fiber fabrics, which are inherently prone to charging, the output voltage can be appropriately reduced; while for materials such as cotton and linen, the voltage can be appropriately increased to enhance the adsorption effect.

[0028] Please refer to Figure 2 and Figure 3 The conductive strips 5 are arranged in multiple uniform Z-shapes, and the conductive strips 5 can evenly contact each area of ​​the hollow table surface 2. While ensuring that the conductive strips 5 can conduct electricity evenly to the entire hollow table surface 2, the cost of the conductive strips 5 is minimized.

[0029] Please refer to Figure 2 and Figure 4 The perforated surface 2 has evenly distributed through holes 6, with adjacent through holes 6 having wavy sides, forming a honeycomb-like perforated surface 2. Adjacent through holes 6 share sides, improving the overall breathability of the perforated surface 2 and increasing the contact area between the fabric and the perforated surface 2. More specifically, the horizontal length of the through holes 6 is 0.5-1cm, and the vertical length of the through holes 6 is also 0.5-1cm. This ensures the breathability of the surface, meeting the requirements of negative pressure adsorption, and further enhances the uniformity of electrostatic conduction, avoiding uneven adsorption force.

[0030] Please refer to Figure 1 and Figure 2 The hollowed-out tabletop 2 is coated with a PTFE coating 7, with a thickness of 0.1-0.5mm. PTFE possesses excellent insulation, high-temperature resistance, and adhesion. After curing, it effectively controls the conduction of static electricity and has a low thermal conductivity, significantly reducing the transfer of heat from laser cutting to the electrostatic layer. The thickness of the PTFE coating needs to be controlled within the range of 0.1-0.5mm. If targeted adsorption of fabrics more sensitive to static electricity is required, the number of sprays can be increased to achieve a coating thickness of 0.5mm, keeping the static conductivity at a low level, thus meeting adsorption requirements while ensuring safety for human contact. If the equipment is designed for ordinary fabrics, the coating thickness can be controlled within 0.1-0.3mm to improve the electrostatic adsorption effect while ensuring safety.

[0031] Furthermore, please refer to Figure 2 An air collection hood 8 is provided between the suction fan 3 and the hollowed-out table surface 2. The size of the air collection hood 8 gradually decreases as it approaches the suction fan 3. This facilitates the suction fan 3 to draw air and create negative pressure more effectively and quickly.

[0032] Meanwhile, a waste drawer 11 is also provided below the suction fan 3. The perforated tabletop 2 is slidably connected to the frame 12, and a pull handle 9 is provided on one side of the perforated tabletop 2. The suction fan 3 also functions to clean debris on the perforated tabletop 2. It can simultaneously adsorb and collect debris into the waste drawer 11 using suction. With the help of the pull handle 9, the perforated tabletop 2 can be slid away to further clean the waste drawer 11.

[0033] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A laser engraving machine for fabrics, comprising a frame (12), a laser cutting device (1) disposed within the frame (12), and a perforated table (2) disposed below the laser cutting device (1), wherein a suction fan (3) is disposed below the perforated table (2), characterized in that, It also includes an electrostatic generator (4) mounted on the frame (12) and a conductive strip (5) mounted on the underside of the hollowed-out platform (2) and electrically connected to the electrostatic generator (4).

2. The laser engraving machine for fabrics according to claim 1, characterized in that, The conductive strips (5) are arranged in a Z-shape.

3. A laser engraving machine for fabrics according to claim 1, characterized in that, The hollowed-out platform (2) has through holes (6) evenly distributed, and the sides of adjacent through holes (6) are wavy.

4. A laser engraving machine for fabrics according to claim 3, characterized in that, The transverse length of the through hole (6) is 0.5-1cm, and the longitudinal length of the through hole (6) is 0.5-1cm.

5. A laser engraving machine for fabrics according to claim 1, characterized in that, It also includes a PTFE coating (7) applied to the upper side of the hollowed-out platform (2).

6. A laser engraving machine for fabrics according to claim 5, characterized in that, The thickness of the PTFE coating (7) is 0.1-0.5 mm.

7. A laser engraving machine for fabrics according to claim 2, characterized in that, An air collection hood (8) is provided between the suction fan (3) and the hollow table surface (2), and the size of the air collection hood (8) gradually decreases along the direction close to the suction fan (3).

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