A laser drawing device and method thereof

Abstract

The present application relates to a laser drawing device and a method thereof, belonging to the technical field of laser drawing devices. It includes a frame, on which a first unwinding assembly, a cutting assembly, a positioning assembly, a laser drawing assembly, a film laminating assembly, a second unwinding assembly, a cutting assembly and a stacking assembly are arranged. The first unwinding assembly and the second unwinding assembly unwind and wind the product. The cutting assembly cuts the product to form positioning holes on the product surface. The positioning assembly positions the product through the positioning holes. After the product positioning is completed, the laser drawing assembly draws on the product surface. After the product drawing is completed, the film laminating assembly laminates the product. After the product drawing is completed, the cutting assembly cuts the drawn part of the product. After cutting, the stacking assembly stacks the products. This application eliminates the need for staff to sequentially pick up products for laser drawing, improves the drawing efficiency of products, and further reduces the harm suffered by staff from lasers during the operation process.

Description

Technical Field

[0001] This application relates to the technical field of laser drawing devices, and in particular, to a laser drawing device and a method thereof. Background Art

[0002] Laser drawing is a method of precisely drawing patterns, texts, images, etc. using laser technology. Usually, a laser drawing machine controls a laser beam to cut, etch, or burn on the surface of a material through a computer, thereby realizing the required pattern.

[0003] The principle of laser drawing is mainly based on the high energy density and precise control of the laser beam. Its working process can generally be divided into the following steps:

[0004] Laser generation: A laser generates a laser beam through a specific medium (such as gas, solid, or liquid). The laser beam has monochromaticity, directionality, and coherence.

[0005] Beam focusing: The laser beam is focused onto a very small point through a lens system, forming a focus with a high energy density.

[0006] Material reaction: When the focused laser beam irradiates the surface of the material, the energy of the laser causes physical or chemical changes in the material. Depending on the intensity and irradiation time of the laser, the material may be cut, etched, or burned.

[0007] Computer control: A laser drawing machine is usually connected to a computer and uses specific software to convert the designed pattern into a laser cutting or etching path. The computer controls the movement and power of the laser to achieve precise drawing.

[0008] Completion of drawing: The laser gradually draws according to the preset path, and finally forms the required pattern or text.

[0009] The existing Chinese patent with the publication number CN108890143B discloses a laser beam energy control structure for a laser marking device. The laser marking device includes a focusing device; the focusing device is provided with a light-passing component, and the light-passing component includes a magnifying glass, a beam flattening mirror, and a focusing mirror arranged in sequence; the magnifying glass is connected to a focusing guide rail structure; a light-blocking plate structure is arranged on one side of the light incident surface of the magnifying glass, and the light-blocking plate structure at least includes a light-blocking plate; the light-blocking plate is a sheet-like structure, and the light-blocking plate is provided with a plurality of light-blocking holes; the light-blocking plate is vertically placed, its light-blocking holes are parallel to the light-passing component, and the holes of the light-blocking holes correspond to the light-passing component; the light-blocking holes are recessed inward along the plate surface of the light-blocking plate to form a transparent annular hole; the inner ring wall and the outer ring wall of the transparent annular hole together form a light-blocking groove; this structure changes the light path of the laser beam with too large an angle by placing a light-blocking plate structure in front of the light-passing component, so that more laser beam energy is incident on the mirror surface of the magnifying glass, reducing the marking error.

[0010] During use, place the product to be drawn on the platform. Reflect the laser emitted by the laser generator onto the platform through a mirror, so that the required pattern can be generated on the surface of the product to be drawn. After one object is drawn, the staff replaces another product to be marked and places it on the platform again, and so on for marking production.

[0011] Regarding the related technology mentioned above, the inventor believes that after one product is marked, the staff needs to manually pick up another product for drawing, which reduces the drawing efficiency of the product. In addition, since the laser generator is directly exposed, it is easy to cause harm to the staff during the operation process. Summary of the Invention

[0012] The technical problem to be solved by the present invention is to provide a laser drawing device and its method, which solve the technical problems that the staff needs to manually pick up the product for drawing and the laser generator is easy to cause harm to the staff.

[0013] To achieve the above object, the present invention provides the following technical solutions:

[0014] A laser drawing device and its method, including:

[0015] A frame, which is used to carry the laser drawing device;

[0016] A first unwinding assembly, which includes a first unwinding roller rotatably installed on the frame, and the semi-finished product to be drawn is wound on the first unwinding roller;

[0017] A cutting assembly, which is installed on one side of the frame close to the first unwinding assembly, and is used to cut the product to be drawn;

[0018] A positioning assembly, which is installed on one side of the frame close to the cutting assembly, and is used to position the product to be drawn;

[0019] A laser drawing assembly, which is installed above the frame close to the positioning assembly, and is used to perform laser drawing on the product to be drawn;

[0020] A film laminating assembly, which is installed on one side of the frame close to the laser drawing assembly, and is used to laminate the film on the product after laser drawing;

[0021] The second unwinding assembly, the second unwinding assembly includes a second unwinding roller, the second unwinding roller is rotatably installed on one side of the frame relative to the first unwinding roller, and the second unwinding roller winds up the product that has completed drawing on one side; after the second unwinding roller finishes winding, the second unwinding roller flips 180 degrees, and after the second unwinding roller flips, it unwinds again, and the laser drawing assembly draws on the other side of the product to be drawn;

[0022] The cutting assembly, the cutting assembly is installed on one side of the frame close to the second unwinding assembly, and the cutting assembly cuts the product drawn by the laser drawing assembly;

[0023] The stacking assembly, the stacking assembly is installed on one side of the frame close to the cutting assembly, and the stacking assembly is used for storing the products that have completed drawing.

[0024] Through the above technical solution, the product to be drawn is wound on the first unwinding assembly, one end of the product to be drawn sequentially passes through the cutting assembly, the positioning assembly, the laser drawing assembly and the film laminating assembly and is wound on the second unwinding assembly. After drawing is completed on one side in the thickness direction of the product, the second unwinding assembly flips the direction so that the other side in the thickness direction of the product can be drawn. After the product is completed by laser drawing, the film laminating assembly laminates the product. After the product is laminated, the cutting assembly cuts the product. After the product is cut, the stacking assembly stacks the product, eliminating the need for workers to pick up products one by one for laser drawing, improving the drawing efficiency of the product, and further reducing the harm suffered by workers due to laser during the operation process.

[0025] Further, the first unwinding assembly includes a first driving gear and a first driven gear. A first rotating shaft is provided on the first unwinding roller, the first driven gear is installed on the first rotating shaft, a first driving motor is installed on the frame, the first driving gear is installed on the first driving motor, and the first driving gear meshes with the first driven gear.

[0026] Through the above technical solution, since the first driving gear meshes with the first driven gear, therefore, the first driving motor drives the first rotating shaft to rotate through the first driving gear and the first driven gear, improving the convenience of unwinding of the first unwinding roller.

[0027] Further, the cutting assembly includes a cutting cylinder, one end of the piston rod of the cutting cylinder faces the side close to the frame, a waste cavity is formed on the frame, a through hole is opened on the frame, and the through hole communicates with the waste cavity; a pressing plate is provided at one end of the piston rod of the cutting cylinder, and a cutting tube is provided on one side of the pressing plate, and the cutting tube corresponds to the through hole.

[0028] Through the above technical solution, the cutting cylinder drives the pressing plate to move towards the side close to the product. The cutting tube on the pressing plate cuts the product, so that positioning holes are formed on the surface of the product. The cut product falls into the waste cavity of the frame, making the drawing position of the product more accurate.

[0029] Further, the positioning component includes a positioning post. A support spring is arranged between the positioning post and the frame, and the support spring is pressed tightly between the positioning post and the frame; a conductive sheet is arranged on the positioning post, and the conductive sheet and the laser drawing component form a series circuit.

[0030] Through the above technical solution, the support spring presses the positioning post tightly on the frame. When the product is misaligned with the positioning post, the product will press down the positioning post. At this time, the laser drawing component breaks. When the positioning post corresponds to the positioning hole of the product, the laser drawing component performs laser drawing on the product, improving the accuracy of the laser drawing position of the product.

[0031] Further, the laser drawing component includes a laser generator. The laser generator is vertically slidably installed on the frame. A dust collection cover is arranged at one end of the laser generator. A plurality of dust suction holes are formed in the dust collection cover, and a dust suction pipe is arranged on the dust collection cover. The plurality of dust suction holes are gathered on the dust suction pipe.

[0032] Through the above technical solution, during the process of the laser generator drawing the product, the dust collection cover covers the product. When the laser generator is drawing, the external air extraction device extracts air through the dust suction holes and the dust suction pipe, thereby reducing the pollution during the drawing process of the laser generator.

[0033] Further, the film pasting component includes a film pasting box. A rotating cavity is formed in the film pasting box. A film pasting shaft is rotatably installed in the rotating cavity. A pressing strip is slidably installed on the film pasting box. A rotating bolt is arranged on the film pasting box. The rotating bolt is threadedly connected to the film pasting box, and one end of the rotating bolt is rotatably connected to the pressing strip; a film pasting groove is formed in the film pasting box, and the film pasting groove communicates with the rotating cavity.

[0034] Through the above technical solution, as the rotating bolt rotates, the pressing strip moves towards the side close to or away from the film pasting shaft. As the film pasting shaft rotates, the film passes through the film pasting groove on the film pasting box, and the passed film adheres to the surface of the product, thereby reducing the scratching of the product surface during the processing process.

[0035] Further, the second unwinding assembly includes a second driving gear and a second driven gear. A second rotating shaft is provided on the second unwinding roller. The second rotating shaft is parallel to the first rotating shaft. The second driven gear is installed on the second rotating shaft. A second driving motor is installed on the frame. The second driving gear is installed on the second driving motor. The second driving gear meshes with the second driven gear.

[0036] Through the above technical solution, the second driving motor drives the second driving gear to rotate. Since the second driving gear meshes with the second driven gear, the second rotating shaft drives the second unwinding roller to rotate, improving the convenience of unwinding and rewinding of the second unwinding roller.

[0037] Further, the cutting assembly includes a cutting knife. The cutting knife is installed on the pressing plate. A ejector rod is installed on the frame. One end of the ejector rod passes through the pressing plate.

[0038] Through the above technical solution, the cutting knife cuts the product. After the cutting knife finishes cutting, the ejector rod separates the product from the cutting knife, improving the processing efficiency of the product.

[0039] Further, the stacking assembly includes a storage box. The storage box is located on one side of the frame close to the pressing plate. A feeding port is provided on the storage box. A pushing cylinder and a pushing plate are provided on the frame. The pushing cylinder is located on the side of the pressing plate relative to the storage box. The pushing plate is installed at one end of the piston rod of the pushing cylinder.

[0040] Through the above technical solution, after the product is cut, the pushing cylinder pushes the product into the storage box through the feeding port of the storage box through the pushing plate, so that a plurality of products can be stored in the storage box.

[0041] A laser drawing method, using a laser drawing device as above, includes the following steps:

[0042] S1. Wind the product to be drawn on the first unwinding roller. Pass one end of the product through the cutting assembly, the positioning assembly, the laser drawing assembly and the film laminating assembly in sequence, and then wind the end passing out of the film laminating assembly on the second unwinding roller.

[0043] S2. As the first unwinding roller and the second unwinding roller start, the product to be drawn passes through the cutting assembly, the positioning assembly, the laser drawing assembly and the film laminating assembly in sequence.

[0044] S3. The cutting assembly punches positioning holes in the product. When the corresponding position of the product moves to the positioning assembly, the positioning assembly positions through the positioning holes on the product.

[0045] S4. After the product is positioned, the laser drawing component draws on the surface of the product. After the product drawing is completed, the film laminating component laminates the drawn side of the product.

[0046] S5. When the first unwinding roller has completely unwound, flip the second unwinding roller, and then pass one end of the product through the positioning component, film laminating component, cutting component, and stacking component in sequence, and wind the product around the first unwinding roller.

[0047] S6. The laser drawing component performs laser drawing on the other side of the product.

[0048] S7. The cutting component cuts the product after the drawing is completed, and the stacking component stacks the cut products.

[0049] In summary, the present application includes at least one of the following beneficial technical effects of the laser drawing device and its method:

[0050] During use, the product to be drawn is wound on the first unwinding component, and one end of the product to be drawn passes through the cutting component, positioning component, laser drawing component, and film laminating component in sequence and is wound on the second unwinding component. After the drawing is completed on one side of the product in the thickness direction, the second unwinding component flips its direction so that the other side of the product in the thickness direction can be drawn. After the product is completed by laser drawing, the film laminating component laminates the product. After the product laminating is completed, the cutting component cuts the product. After the product cutting is completed, the stacking component stacks the product, eliminating the need for staff to pick up the product for laser drawing one by one, improving the drawing efficiency of the product. Further, it reduces the harm suffered by the staff due to laser during the operation process.

[0051] The first driving motor drives the first rotating shaft to rotate through the first driving gear and the first driven gear, and the second driving motor drives the second rotating shaft to rotate through the second driving gear and the second driven gear, improving the convenience of winding and unwinding of the first unwinding roller and the second unwinding roller.

[0052] By punching the product through the cutting tube and the setting of the conductive sheet on the positioning post, the accuracy of the pattern position is improved when the laser generator draws on the product. Description of the Drawings

[0053] Figure 1 is an overall structural schematic diagram of a laser drawing device mainly provided by the present application;

[0054] Figure 2 is an exploded structural schematic diagram of the first unwinding component mainly provided by the present application;

[0055] Figure 3 is an exploded structural schematic diagram of the guide block mainly provided by the present application;

[0056] Figure 4 It is a schematic structural diagram of the cutting component mainly provided by this application;

[0057] Figure 5 It is a sectional view of the structure of the laser generator mainly provided by this application;

[0058] Figure 6 is Figure 5 An enlarged schematic view of part A;

[0059] Figure 7 It is a sectional view of the structure of the storage box mainly provided by this application;

[0060] Figure 8 It is a sectional view of the structure of the film - sticking box mainly provided by this application;

[0061] Figure 9 It is a schematic structural diagram of the positioning column mainly provided by this application;

[0062] Figure 10 It is an exploded schematic view of the structure of the second unwinding component mainly provided by this application.

[0063] Reference numerals:

[0064] 1, frame; 11, guide groove; 12, guide block; 121, limit groove; 13, slider; 14, fixing bolt; 15, guide wheel; 16, waste cavity; 161, through - hole; 17, drawer;

[0065] 2, first unwinding component; 21, first support seat; 22, first unwinding roller; 221, first rotating shaft; 23, first mounting cover; 24, first bearing; 25, first driving motor; 26, first driving gear; 27, first driven gear;

[0066] 3, cutting component; 31, cutting cylinder; 32, mounting plate; 33, pressing plate; 34, cutting tube; 35, push rod;

[0067] 4, positioning component; 41, positioning column; 42, conductive sheet; 43, support spring; 44, wire;

[0068] 5, laser drawing component; 51, laser generator; 52, lifting motor; 53, lifting screw; 54, lifting block; 55, guide rod; 56, dust collection cover; 57, dust suction hole; 58, dust suction pipe;

[0069] 6, film - sticking component; 61, film - sticking box; 611, rotating cavity; 612, film - sticking groove; 62, film - sticking shaft; 63, cover plate; 64, rotating bolt; 641, pressing strip; 65, first tensioning roller; 66, second tensioning roller; 67, third tensioning roller; 68, tensioning cylinder;

[0070] 7. Second unwind assembly; 71. Second support base; 72. Second unwind roller; 721. Second rotating shaft; 73. Second mounting cover; 74. Second bearing; 75. Second drive motor; 76. Second driving gear; 77. Second driven gear;

[0071] 8. Cutting assembly; 81. Cutting knife; 82. Thrust rod;

[0072] 9. Stacking assembly; 91. Storage box; 92. Feeding port; 93. Pushing cylinder; 94. Pushing plate; 941. Adjusting groove; 95. Adjusting bolt; 96. Lifting plate; 961. Lifting cylinder. Detailed implementation mode

[0073] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0074] The following combines the attached Figures 1 - 10 This application will be further described in detail.

[0075] An embodiment of the present application discloses a laser drawing device and its method.

[0076] Refer to Figure 1 , a laser drawing device, including a frame 1, on which a first unwind assembly 2, a cutting assembly 3, a positioning assembly 4, a laser drawing assembly 5, a film laminating assembly 6, a second unwind assembly 7, a cutting assembly 8 and a stacking assembly 9 are provided. The first unwind assembly 2 and the second unwind assembly 7 unwind and wind up the product. The cutting assembly 3 cuts the product so that positioning holes can be formed on the surface of the product. The positioning assembly 4 positions the product through the positioning holes on the surface of the product. After the product is positioned, the laser drawing assembly 5 draws on the surface of the product. After the product is drawn, the film laminating assembly 6 laminates the product. After the product is drawn, the cutting assembly 8 cuts the drawn part of the product. After cutting, the stacking assembly 9 stacks the products.

[0077] Refer to Figure 2, the first unwinding assembly 2 includes first support seats 21. There are two first support seats 21 arranged at intervals. A first unwinding roller 22 is arranged between the two first support seats 21. A first rotating shaft 221 is installed on the first unwinding roller 22. The first unwinding roller 22 is rotatably installed on the first support seats 21 through the first rotating shaft 221. First mounting covers 23 are arranged on the two first support seats 21. The first mounting covers 23 are rotatably installed on the first support seats 21. During use, by opening and closing the first mounting covers 23 on the first support seats 21, the disassembly of the first unwinding roller 22 is realized. Both ends of the first rotating shaft 221 are installed with first bearings 24. The first bearings 24 are sleeved on both ends of the first rotating shaft 221. During use, the first rotating shaft 221 is rotatably installed on the first support seats 21 through the first bearings 24.

[0078] The first unwinding assembly 2 includes a first driving motor 25. The first driving motor 25 is installed on the first support plate, and a first driving gear 26 is installed on the output shaft of the first driving motor 25. A first driven gear 27 is installed at one end of the first rotating shaft 221. The first driving gear 26 meshes with the first driven gear 27. During use, the first driving motor 25 drives the first driving gear 26 to rotate. Since the first driving gear 26 meshes with the first driven gear 27, the first rotating shaft 221 rotates synchronously. This improves the portability of the unwinding and rewinding of the first unwinding roller 22.

[0079] Refer to Figure 10 , the second unwinding assembly 7 includes second support seats 71. The whole frame 1 is rectangular. Two second support seats 71 are arranged at intervals on one side of the frame 1 in the length direction relative to the first support seats 21. A second unwinding roller 72 is arranged between the two second support seats 71. A second rotating shaft 721 is arranged on the second unwinding roller 72. The second unwinding roller 72 is rotatably installed on the second support seats 71 through the second rotating shaft 721. Second mounting covers 73 are arranged on the two second support seats 71. The second mounting covers 73 are rotatably installed on the second support seats 71. During use, by opening and closing the second mounting covers 73 on the second support seats 71, the disassembly of the second unwinding roller 72 is realized. Both ends of the second rotating shaft 721 are installed with second bearings 74. The second bearings 74 are sleeved on the second rotating shaft 721. During use, the second rotating shaft 721 is rotatably installed on the second support seats 71 through the second bearings 74.

[0080] The second unwinding assembly 7 includes a second driving motor 75. The second driving motor 75 is installed on the second support plate, and a second driving gear 76 is installed on the output shaft of the second driving motor 75. Second driven gears 77 are installed at both ends of the second rotating shaft 721, and the second driving gear 76 meshes with the second driven gears 77. During use, the second driving motor 75 drives the second driving gear 76 to rotate. Since the second driving gear 76 meshes with the second driven gears 77, the second rotating shaft 721 rotates synchronously. When it is necessary to reverse the direction of the second unwinding roller 72, the second driving gear 76 meshes with the second driven gear 77 on the other side of the second rotating shaft 721.

[0081] Referring to Figure 3 , guide grooves 11 are provided on both sides of the frame 1 in the length direction near the first unwinding roller 22 and the second unwinding roller 72. Two guide grooves 11 are spaced apart on one side of the frame 1 in the length direction, and the length direction of the two guide grooves 11 is the same as the width direction of the frame 1. Guide blocks 12 are provided on the frame 1. The guide blocks 12 are rectangular as a whole, and two guide blocks 12 are arranged oppositely along the length direction of the guide grooves 11.

[0082] Sliders 13 are installed at both ends of the two guide blocks 12 in the length direction, and the sliders 13 are slidably engaged with the guide grooves 11 on the frame 1. During use, the two guide blocks 12 are slidably engaged with the guide grooves 11 on the frame 1 through the sliders 13. Limiting grooves 121 are provided on one side of the two guide blocks 12 close to each other. During use, the product passes through the limiting grooves 121 between the two guide blocks 12. Through the guiding of the guide blocks 12, the stability of the product moving on the frame 1 is improved.

[0083] During the actual operation process, the widths of the products to be drawn with different sizes are different. In order to improve the guiding effect of the guide blocks 12 on the products, fixing bolts 14 are provided on the sliders 13. The fixing bolts 14 are threadedly connected to the sliders 13, and one end of the fixing bolts 14 passes through the guide blocks 12. When it is necessary to fix the sliders 13, rotate the fixing bolts 14, and one end of the fixing bolts 14 abuts against the frame 1, so that the sliders 13 can be fixed on the frame 1.

[0084] Guide wheels 15 are installed at both ends of the guide blocks 12 in the length direction. The guide wheels 15 are rotatably installed on the guide blocks 12. During use, the surface of the product contacts the guide wheels 15, thereby reducing the abrasion between the surface of the product and the guide blocks 12 and improving the integrity of the surface of the product.

[0085] Referring to Figure 4, the cutting assembly 3 includes a cutting cylinder 31. An installation plate 32 is provided on the frame 1, and the installation plate 32 is arranged parallel and spaced from the frame 1. During use, the installation plate 32 is installed on the frame 1, the cutting cylinder 31 is vertically installed on the installation plate 32, and the piston rod of the cutting cylinder 31 faces the side close to the frame 1. One end of the piston rod of the cutting cylinder 31 is provided with a pressing plate 33, and the pressing plate 33 is arranged parallel and spaced from the frame 1. During use, the cutting cylinder 31 drives the pressing plate 33 to move towards or away from the side of the frame 1. A waste cavity 16 is formed on the side of the frame 1 close to the cutting cylinder 31, and through holes 161 are opened on the frame 1. Four through holes 161 are spaced apart on the frame 1, and all four through holes 161 communicate with the waste cavity 16.

[0086] Further, four cutting tubes 34 are spaced on the side of the pressing plate 33 close to the frame 1. The four cutting tubes 34 correspond to the through holes 161. When the product passes through the lower side of the pressing plate 33, the cutting cylinder 31 drives the side of the pressing plate 33 close to the frame 1 to move. As the pressing plate 33 presses down, the four cutting tubes 34 leave four positioning holes corresponding to the through holes 161 on the surface of the product.

[0087] A push rod 35 is provided on the installation plate 32, and the push rod 35 corresponds to the cutting tube 34. One end of the push rod 35 is connected to the installation plate 32, and the other end passes through the pressing plate 33 and extends into the cutting tube 34. When the cutting tube 34 presses down, the excess waste of the product remains in the cutting tube 34. When the pressing plate 33 moves up, the push rod 35 pushes out the excess waste in the cutting tube 34. After the waste is pushed out of the cutting tube 34, it falls into the waste cavity 16 of the frame 1 through the through hole 161.

[0088] Refer to Figure 4 , a drawer 17 is slidably installed in the waste cavity 16 of the frame 1, and the drawer 17 collects the waste. The staff only needs to clean the drawer 17 regularly.

[0089] Refer to Figure 5, the laser drawing assembly 5 includes a laser generator 51 which performs laser drawing on the surface of the product. To improve the drawing effect of the laser generator 51, a lifting motor 52 and a lifting screw 53 are provided on the frame 1. The lifting motor 52 is vertically installed on the frame 1, and one end of the lifting screw 53 is connected to the lifting motor 52. A lifting block 54 is installed on the laser generator 51, and the lifting block 54 is threadedly connected to the lifting screw 53. During use, the lifting motor 52 drives the lifting screw 53 to rotate, and during the rotation of the lifting screw 53, it drives the slider 13 and the laser generator 51 to slide in the vertical direction of the frame 1. To improve the stability of the laser generator 51 sliding on the frame 1, guide rods 55 are provided on the frame 1. Two guide rods 55 are spaced apart on both sides of the lifting screw 53. One end of each of the two guide rods 55 passes through the slider 13, and the slider 13 slides along the axis direction of the guide rod 55.

[0090] Refer to Figure 6 , when the laser generator 51 performs laser drawing on the surface of the product, dust with certain hazards will be generated on the product surface. To reduce the dust inhaled by the staff, a dust collection hood 56 is provided at the end of the laser generator 51. A dust suction hole 57 is formed inside the dust collection hood 56. A number of dust suction holes 57 are evenly spaced around the dust collection hood 56. A dust suction pipe 58 is provided on the dust collection hood 56, and a number of dust suction holes 57 are gathered on the dust suction pipe 58. During use, an external air extraction device is connected to the dust suction pipe 58. When the laser generator 51 is performing laser drawing, the external air extraction device extracts air through the dust suction pipe 58, and the dust generated during the laser drawing process is sucked out through the dust suction holes 57, thereby reducing the dust inhaled by the staff during the processing.

[0091] Refer to Figure 9 , the positioning assembly 4 includes positioning posts 41. Four positioning posts 41 are spaced apart on the frame 1. Conductive sheets 42 are provided on the positioning posts 41, and the conductive sheets 42 are installed on the positioning posts 41. A support spring 43 is provided between the positioning posts 41 and the frame 1. The support spring 43 is sleeved on the positioning posts 41, and one end of the support spring 43 abuts against the frame 1, and the other end abuts against the conductive sheet 42. A wire 44 is provided on the frame 1. A series circuit is formed between the wire 44, the laser generator 51 and the conductive sheet 42. In the initial state, the support spring 43 presses the conductive sheet 42 against the wire 44, thereby making the laser generator 51 in an energized state.

[0092] Refer to Figure 9, the lifting motor 52 drives the laser generator 51 to move towards the side close to the frame 1. When the positioning hole on the product is misaligned with the positioning post 41, the product will press down the positioning post 41, and the support spring 43 will be compressed. At this time, the conductive sheet 42 is separated from the wire 44, and the laser generator 51 is in an open circuit state. Only when the positioning hole corresponds to the positioning post 41, the support spring 43 will press the conductive sheet 42 against the support spring 43, enabling the laser generator 51 to form a circuit, improving the accuracy of the laser drawing position.

[0093] Referring to Figure 8 , after the product is drawn, as the product slides on the frame 1, friction occurs between the product and the bracket, which affects the drawing effect of the product. Therefore, the film pasting assembly 6 includes a film pasting box 61, which is installed on the frame 1, and a rotating cavity 611 is formed inside the film pasting box 61, and a film pasting groove 612 is opened on the film pasting box 61, and the film pasting groove 612 communicates with the rotating cavity 611. A film pasting shaft 62 is rotatably installed on the film pasting box 61, a film is wound on the film pasting shaft 62, and one end of the film passes out from the film pasting groove 612. When the drawn product passes under the film pasting box 61, the film adheres to the surface of the product.

[0094] To improve the adhesion effect of the film, a cover plate 63 is rotatably installed on the film pasting box 61, and the cover plate 63 covers the rotating cavity 611 of the film pasting box 61, thereby reducing the dust in the air from falling into the film pasting box 61 during the processing.

[0095] A rotating bolt 64 is installed on the film pasting box 61, and the rotating bolt 64 is threadedly connected to the film pasting box 61. One end of the rotating bolt 64 is rotatably installed with a pressing strip 641. During use, as the rotating bolt 64 rotates, the pressing strip 641 moves towards or away from the film pasting shaft 62. When the pressing strip 641 presses against the film pasting shaft 62, the film pasting shaft 62 stops rotating. When the pressing strip 641 is away from the film pasting shaft 62, the film on the film pasting shaft 62 continuously adheres to the surface of the product as the product moves.

[0096] A first tension roller 65, a second tension roller 66, and a third tension roller 67 are arranged on one side of the film pasting box 61 close to the film pasting groove 612. After the film passes out from the film pasting groove 612, it passes under the first tension roller 65 in sequence, and then passes between the second tension roller 66 and the third tension roller 67. The second tension roller 66 and the third tension roller 67 are arranged oppositely. The second tension roller 66 is installed on the frame 1, and a tension cylinder 68 is installed on the film pasting box 61. One end of the piston rod of the tension cylinder 68 faces the second tension roller 66, and the third tension roller 67 is rotatably installed on the piston rod of the tension cylinder 68. When the product and the film pass between the second tension roller 66 and the third tension roller 67, the third tension roller 67 presses the film against the surface of the product.

[0097] Set the side of the product where laser drawing is performed for the first time as the front side, and the side where laser drawing is performed for the second time as the back side. Two sets of film laminating assemblies 6 are arranged at intervals on both sides of the laser generator 51. The film laminating assembly 6 closer to the second unwinding roller 72 laminates the front side of the product, and the film laminating assembly 6 closer to the first unwinding roller 22 laminates the back side of the product.

[0098] Refer to Figure 10 , after the drawing on the front side of the product is completed, flip the second unwinding roller 72 by 180 degrees along the axis of the second rotating shaft 721 so that the side of the product without drawing faces the laser generator 51.

[0099] Refer to Figure 4 , the product is in a long strip shape, and the drawn patterns are evenly spaced on the product in sequence. The staff also needs to perform stamping to cut off the corresponding patterns from the long strip product. To improve the processing efficiency of the product, the cutting assembly 8 includes a cutting knife 81, and the cutting knife 81 is installed on the side of the pressing plate 33 close to the frame 1. When the product passes under the pressing plate 33, the cutting cylinder 31 drives the pressing plate 33 to move towards the side close to the frame 1, and the cutting knife 81 on the pressing plate 33 cuts the product corresponding to the pattern on the long strip product. The excess waste is re-wound on the first unwinding roller 22. During actual use, the staff can replace the cutting knife 81 with different shapes according to actual needs, making the cut products more diverse.

[0100] Refer to Figure 4 , when the cutting knife 81 cuts off the corresponding drawn product, the product will be embedded in the cutting knife 81. Therefore, a ejector rod 82 is provided on the mounting plate 32. One end of the ejector rod 82 is connected to the mounting plate 32, and the other end passes through the pressing plate 33. In use, the pressing plate 33 presses down, the cutting knife 81 cuts the product, and the cut product is embedded in the cutting knife 81. The cutting cylinder drives the pressing plate 33 to move away from the frame 1. During the movement of the pressing plate 33, the ejector rod 82 pushes the product out of the cutting knife 81.

[0101] Refer to Figure 4 And Figure 7 , the stacking assembly 9 includes a storage box 91. The storage box 91 is located on the side of the frame 1 in the width direction close to the pressing plate 33. An inlet 92 is provided on the storage box 91, and the inlet 92 faces the side close to the pressing plate 33. On the side of the frame 1 in the width direction relative to the storage box 91, a pushing cylinder 93 and a push plate 94 are provided. The pushing cylinder 93 is installed on the frame 1, and one end of the piston rod of the pushing cylinder 93 faces the side close to the storage box 91. The push plate 94 is installed at one end of the piston rod of the pushing cylinder 93. In use, the push plate 94 pushes the cut product into the storage box 91 through the feeding interface.

[0102] Different products have different thicknesses. In order to enable the pushing plate 94 to push the products into the storage box 91, an adjustment slot 941 is provided on the pushing plate 94, and an adjustment bolt 95 is provided on the pushing plate 94. One end of the adjustment bolt 95 passes through the adjustment slot 941 on the pushing plate 94 and is connected to one end of the piston rod of the pushing cylinder 93. During use, rotate the adjustment bolt 95 to adjust the distance between the pushing plate 94 and the surface of the frame 1, and then tighten the bolt so that the pushing plate 94 can be used for products with different thicknesses.

[0103] Referring to Figure 7 Furthermore, a lifting plate 96 is provided in the storage box 91. The lifting plate 96 is horizontally installed in the storage box 91. A lifting cylinder 961 is provided in the storage box 91. The lifting cylinder 961 is installed in the storage box 91, and the piston rod of the lifting cylinder 961 is connected to the lifting plate 96. As the products are stacked on the lifting plate 96, when the stacking of products in the storage box 91 is completed, the lifting cylinder 961 drives the lifting plate 96 to lift, thereby making it convenient for the staff to pack the products integrally.

[0104] A laser drawing method uses a laser drawing device, including the following steps:

[0105] S1. Wind the product to be drawn on the first unwinding roller 22, pass one end of the product through the cutting assembly 3, the positioning assembly 4, the laser drawing assembly 5, and the film laminating assembly 6 in sequence, and then wind the end passing out of the film laminating assembly 6 on the second unwinding roller 72;

[0106] S2. As the first unwinding roller 22 and the second unwinding roller 72 start, the product to be drawn passes through the cutting assembly 3, the positioning assembly 4, the laser drawing assembly 5, and the film laminating assembly 6 in sequence;

[0107] S3. The cutting assembly 3 punches positioning holes in the product. When the corresponding position of the product moves to the positioning assembly 4, the positioning assembly 4 positions through the positioning holes on the product;

[0108] S4. After the product is positioned, the laser drawing assembly 5 draws on the front of the product. During the drawing process, an external air extraction device sucks air through the dust suction pipe 58 to the dust suction holes 57, and the dust generated during the laser drawing process is extracted. After the product drawing is completed, the film laminating assembly 6 laminates the drawn side of the product;

[0109] S5. When the first unwinding roller 22 is completely unwound, flip the second unwinding roller 72, and then pass one end of the product through the positioning assembly 4, the film laminating assembly 6, the cutting assembly 8, and the stacking assembly 9 in sequence, and wind the product around the first unwinding roller 22;

[0110] S6. The laser drawing assembly 5 performs laser drawing on the back of the product;

[0111] After the reverse drawing of the product is completed, the cutting knife 81 cuts the product with the drawing completed under the action of the cutting cylinder 31, and then the pushing cylinder 93 pushes the cut product into the storage box 91 through the push plate 94. After the products are stacked in the storage box 91, the lifting cylinder 961 lifts the stacked products through the lifting plate 96, and finally the staff packs the products with the drawing completed.

[0112] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A laser drawing device, characterized in that: include: A frame (1), the frame (1) being used to carry a laser drawing device; A first unwinding assembly (2), the first unwinding assembly (2) comprising a first unwinding roller (22), the first unwinding roller (22) being rotatably mounted on the frame (1), and the semi-product to be drawn is rolled on the first unwinding roller (22); A cutting assembly (3), the cutting assembly (3) being mounted on a side of the frame (1) close to the first unwinding assembly (2), the cutting assembly (3) being used to cut positioning holes on the product to be painted; The cutting assembly (3) further comprises a cutting cylinder (31), one end of a piston rod of the cutting cylinder (31) faces a side close to the frame (1), a waste material chamber (16) is formed on the frame (1), a through hole (161) is provided on the frame (1), and the through hole (161) is communicated with the waste material chamber (16); a pressing plate (33) is provided at one end of the piston rod of the cutting cylinder (31), a cutting tube (34) is provided on one side of the pressing plate (33), and the cutting tube (34) corresponds to the through hole (161); A positioning component (4), the positioning component (4) being mounted on a side of the frame (1) close to the cutting component (3), and the positioning component (4) being used to position the product to be painted; A laser drawing component (5), the laser drawing component (5) being installed above the frame (1) near the positioning component (4), and the laser drawing component (5) being used to perform laser drawing on the product to be drawn; A film laminating assembly (6), the film laminating assembly (6) being mounted on a side of the frame (1) close to the laser drawing assembly (5), and the film laminating assembly (6) being used to laminarize the product after the laser drawing is completed; A second unwinding assembly (7), the second unwinding assembly (7) comprising a second unwinding roller (72), the second unwinding roller (72) being rotatably mounted on a side of the frame (1) relative to the first unwinding roller (22), the second unwinding roller (72) rewinding the product on one side of which the drawing is completed; after the second unwinding roller (72) completes the rewinding, the second unwinding roller (72) flips 180 degrees, and after the second unwinding roller (72) flips, it unwinds again, and the laser drawing assembly (5) draws the other side of the product to be drawn; a cutting assembly (8), the cutting assembly (8) being mounted on a side of the frame (1) close to the second unwinding assembly (7), the cutting assembly (8) cutting the product drawn by the laser drawing assembly (5); The cutting assembly (8) further comprises a cutting knife (81), wherein the cutting knife (81) is mounted on the pressing plate (33); a push rod (82) is mounted on the frame (1), and one end of the push rod (82) passes through the pressing plate (33); A stacking assembly (9), the stacking assembly (9) being mounted on a side of the frame (1) close to the cutting assembly (8), the stacking assembly (9) being used to store the finished products.

2. A laser drawing device according to claim 1, characterized in that: The first unwinding assembly (2) comprises a first driving gear (26) and a first driven gear (27); the first unwinding roller (22) is provided with a first rotating shaft (221); the first driven gear (27) is mounted on the first rotating shaft (221); a first driving motor (25) is mounted on the frame (1); the first driving gear (26) is mounted on the first driving motor (25); and the first driving gear (26) is meshed with the first driven gear (27).

3. A laser drawing device according to claim 1, characterized in that: The positioning assembly (4) comprises a positioning column (41), a support spring (43) is arranged between the positioning column (41) and the frame (1), and the support spring (43) is pressed tightly between the positioning column (41) and the frame (1); a conductive sheet (42) is arranged on the positioning column (41), and the conductive sheet (42) forms a series circuit with the laser drawing assembly (5).

4. A laser drawing device according to claim 1, characterized in that: The laser drawing assembly (5) comprises a laser generator (51), the laser generator (51) being vertically slidably mounted on the frame (1), a dust collecting cover (56) being provided at one end of the laser generator (51), a plurality of dust suction holes (57) being provided on the dust collecting cover (56), and a dust suction pipe (58) being provided on the dust collecting cover (56), and a plurality of the dust suction holes (57) being assembled on the dust suction pipe (58).

5. The laser drawing device according to claim 1, characterized in that: The film sticking assembly (6) comprises a film sticking box (61), a rotating chamber (611) is formed in the film sticking box (61), a film sticking shaft (62) is rotatably installed in the rotating chamber (611), a pressure strip (641) is slidably installed on the film sticking box (61), a rotating bolt (64) is arranged on the film sticking box (61), the rotating bolt (64) is threadedly connected to the film sticking box (61), and one end of the rotating bolt (64) is rotatably connected to the pressure strip (641); a film sticking groove (612) is opened on the film sticking box (61), and the film sticking groove (612) is communicated with the rotating chamber (611).

6. A laser plotting device according to claim 2, characterized in that: The second unwinding assembly (7) comprises a second driving gear (76) and a second driven gear (77); a second rotating shaft (721) is arranged on the second unwinding roller (72); the second rotating shaft (721) is parallel to the first rotating shaft (221); the second driven gear (77) is mounted on the second rotating shaft (721); a second driving motor (75) is mounted on the frame (1); the second driving gear (76) is mounted on the second driving motor (75); and the second driving gear (76) is meshed with the second driven gear (77).

7. The laser drawing device according to claim 1, characterized in that: The stacking assembly (9) comprises a storage box (91), the storage box (91) being located on a side of the frame (1) close to the pressure plate (33), the storage box (91) being provided with a feed port (92), the frame (1) being provided with a push cylinder (93) and a push plate (94), the push cylinder (93) being located on a side of the pressure plate (33) opposite to the storage box (91), and the push plate (94) being installed at one end of a piston rod of the push cylinder (93).

8. A laser drawing method, characterized in that: Using a laser drawing device as described in any one of claims 2 to 7, comprising the following steps: S1, rolling the product to be drawn on the first unwinding roller (22), passing one end of the product through the cutting assembly (3), the positioning assembly (4), the laser drawing assembly (5) and the film sticking assembly (6) in sequence, and then rolling the end passing through the film sticking assembly (6) on the second unwinding roller (72); S2, as the first unwinding roller (22) and the second unwinding roller (72) are started, the product to be drawn passes through the cutting assembly (3), the positioning assembly (4), the laser drawing assembly (5) and the film pasting assembly (6) in sequence; S3, the cutting component (3) punches a positioning hole on the product, and when the corresponding position of the product is moved to the positioning component (4), the positioning component (4) positions the product through the positioning hole on the product; S4, after the product is positioned, the laser drawing component (5) draws the surface of the product. After the product drawing is completed, the film laminating component (6) laminates the drawn side of the product; S5. After the first unwinding roller (22) is completely unwound, the second unwinding roller (72) is turned over, and then one end of the product is passed through the positioning component (4), the film laminating component (6), the cutting component (8) and the stacking component (9) in sequence, and the product is wound on the first unwinding roller (22); S6, the laser drawing component (5) performs laser drawing on the other side of the product; S7, the cutting component (8) cuts the finished product, and the stacking component (9) stacks the cut products.

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