Laser precise punching device for reflecting film

Abstract

The utility model discloses a laser precise punching device for a reflecting film. The laser precise punching device comprises a machine base, an X-axis moving mechanism, a Y-axis moving mechanism, an adsorption table, a laser head assembly, a diaphragm conveying mechanism and a diaphragm discharging bracket. The membrane conveying mechanism and the membrane discharging bracket are arranged on the two sides of the machine base respectively, the membrane conveying mechanism is used for conveying a reflecting membrane to the adsorption table, the two X-axis moving mechanisms are arranged at the two ends of the adsorption table, the Y-axis moving mechanism is connected with the two X-axis moving mechanisms, and the laser head assembly is connected with the movable end of the Y-axis moving mechanism. The reflecting film can be conveyed to the adsorption table through the film conveying mechanism, the laser head assembly can emit laser beams to the reflecting film so that the reflecting film on the adsorption table can be punched, after punching operation is completed, the reflecting film is guided and conveyed through the film discharging bracket to be discharged, the whole feeding, punching and discharging process is automatically carried out, the production efficiency is improved, and the production cost is reduced. And the punching processing efficiency of the reflecting film is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of reflective film punching devices, in particular to a laser precision punching device for reflective films. Background Art

[0002] As an important optical material, reflective film is widely used in liquid crystal displays, optical instruments and other equipment. During the manufacturing process of reflective film, it is often necessary to punch it to control the transmission, reflection and scattering characteristics of light and achieve specific optical effects.

[0003] In the existing technology, the traditional mechanical punching method is difficult to meet the high precision and high efficiency requirements of modern industrial production due to the limitations of accuracy, efficiency and stability; in addition, the reflective film material is relatively thin and soft, and the mechanical punching method is likely to cause deformation and displacement of the film, resulting in unstable punching quality; there are some laser punching equipment on the market, however, when the laser punching equipment punches holes in the reflective film, it is usually necessary to manually place the reflective film on the laser punching equipment, which not only increases labor intensity, but also affects production efficiency; and during the manual loading process, the reflective film is prone to wrinkles and displacement, resulting in a decrease in the accuracy of laser drilling. In addition, manual loading also makes it difficult to achieve continuity and automation of the production process, and cannot meet the needs of large-scale and efficient production.

[0004] Therefore, the existing technology has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a laser precision punching device for a reflective film which can improve production efficiency and punching accuracy and realize automatic loading and unloading.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: a laser precision drilling device for a reflective film, comprising a machine base, an X-axis moving mechanism, a Y-axis moving mechanism, an adsorption table, a laser head assembly, a film conveying mechanism, and a film blanking bracket;

[0007] The adsorption platform is arranged on the machine base, and is used to adsorb the reflective film to be punched;

[0008] The film conveying mechanism and the film unloading bracket are respectively arranged on both sides of the machine base, the film conveying mechanism is used to convey the reflective film to the adsorption table, and the film unloading bracket is used to guide and convey the reflective film after the punching;

[0009] Two sets of X-axis moving mechanisms are provided at both ends of the adsorption platform, the Y-axis moving mechanism is connected to the two sets of X-axis moving mechanisms, the laser head assembly is connected to the movable end of the Y-axis moving mechanism, and the laser head assembly is used to emit a laser beam toward the reflective film on the adsorption platform;

[0010] Among them, the laser head assembly includes a mounting plate, a reflector seat, a laser emitting tube and a dust hood. The laser emitting tube is arranged on the mounting plate, the reflector seat is arranged above the laser emitting tube, and the reflector seat of the laser emitting tube is used to reflect the laser into the laser emitting tube. The dust hood is arranged on the mounting plate on the back of the laser emitting tube, and the dust hood is used to absorb the smoke and dust generated by the laser emitting tube during laser drilling.

[0011] Using the above technical solution, in the laser precision drilling device for the reflective film, the laser head assembly also includes a tube clamping sleeve, which is arranged at the bottom of the reflector seat. The inside of the tube clamping sleeve is provided with a chamber for the laser emitting tube to extend into, and the bottom of the tube clamping sleeve is provided with a tube clamping member, which is used to clamp the laser emitting tube.

[0012] According to the above technical solutions, in the laser precision drilling device for the reflective film, the laser head assembly further includes a telescopic adjustment module, which is used to adjust the distance between the laser emitting tube and the adsorption platform;

[0013] The telescopic adjustment module includes a fixed plate, a screw shaft and a connecting arm. The fixed plate is arranged on the mounting plate. The screw shaft is rotatably connected to the fixed plate. The top of the screw shaft has a holding portion. One end of the connecting arm is connected to the screw shaft by a thread, and the other end of the connecting arm is connected to the laser emitting tube. The connecting arm is used to drive the laser emitting tube to move up and down as the screw shaft rotates.

[0014] By adopting the above-mentioned technical solutions, in the laser precision punching device for the reflective film, a negative pressure suction device is provided at the bottom of the adsorption platform, and a plurality of adsorption holes are provided on the adsorption platform, and the negative pressure suction device is used to generate negative pressure adsorption force on the adsorption platform.

[0015] Using the above technical solutions, the laser precision drilling device for the reflective film further includes a laser generator, a first reflector and a second reflector;

[0016] The laser generator is arranged on the back of the machine base, and is used to generate a laser beam. The first reflector is arranged in a corner area of ​​the machine base, and the second reflector is arranged on the movable end of the X-axis moving mechanism. The first reflector is used to reflect the laser beam onto the second reflector, and the second reflector is used to reflect the laser beam into the laser head assembly.

[0017] According to the above technical solutions, in the laser precision punching device for the reflective film, the film conveying mechanism includes a loading rack, a driving motor, an active roller, a driven roller, and a first limit block;

[0018] The loading frame is arranged at one end of the machine base, the driven roller and the active roller are respectively arranged on the loading frame, a gap is formed between the active roller and the driven roller for the reflective film to pass through, and the output shaft of the driving motor is connected to the active roller through a pulley transmission assembly;

[0019] The loading rack is provided with a first supporting plate at the end close to the machine base, the first supporting plate is provided with a first slide groove, and two first limiting blocks are respectively provided on both sides of the first slide groove, and the first limiting blocks are used to limit the lateral displacement of the reflective film.

[0020] According to the above technical solutions, in the laser precision punching device for the reflective film, the film blanking bracket includes a blanking rack, a guide roller, a second supporting plate and a second limit block;

[0021] The unloading rack is arranged at the other side end of the machine base, and several guide rollers are arranged on the unloading rack. The guide rollers are used to guide and transport the reflective film. The second supporting plate is arranged at the end of the unloading rack close to the machine base. The second supporting plate is provided with a second slide groove, and two second limit blocks are respectively arranged on both sides of the second slide groove. The second limit blocks are used to limit the lateral displacement of the reflective film.

[0022] By adopting the above-mentioned technical solutions, the laser precision drilling device for the reflective film further includes an upper shield, which is arranged on the machine base and is used to cover and protect the laser head assembly.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The reflective film of the utility model is transported to the adsorption table by the diaphragm transport mechanism. When the reflective film reaches the adsorption table, the adsorption table can adsorb and fix the reflective film by the adsorption force, so as to prevent the reflective film from being displaced or deformed during the laser drilling process, thereby improving the drilling accuracy. Through the coordinated action of the X-axis moving mechanism and the Y-axis moving mechanism, the laser head assembly can be accurately positioned on the surface of the reflective film. The laser head assembly can emit a laser beam toward the reflective film to perform a drilling operation on the reflective film on the adsorption table. When the drilling operation is completed, the negative pressure on the adsorption table is released, and the reflective film is guided and transported by the diaphragm unloading bracket for unloading operation. The entire loading, drilling and unloading process is automated, which greatly improves the drilling processing efficiency of the reflective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed in the present invention.

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the installation structure of the negative pressure suction device of the present utility model;

[0029] Figure 3 This is a schematic diagram of the upper shield installation structure of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the laser head assembly of the present utility model;

[0031] Figure 5 This is a schematic structural diagram of the diaphragm conveying mechanism of the present utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the diaphragm blanking bracket of the present utility model. DETAILED DESCRIPTION

[0033] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0036] like Figures 1 to 6 As shown, an embodiment of the present utility model provides a laser precision punching device for a reflective film, comprising a machine base 1, an X-axis moving mechanism 2, a Y-axis moving mechanism 3, an adsorption platform 4, a laser head assembly 5, a film conveying mechanism 6 and a film blanking bracket 7, wherein the adsorption platform 4 is arranged on the machine base 1, and the adsorption platform 4 is used to adsorb the reflective film to be punched, the film conveying mechanism 6 and the film blanking bracket 7 are respectively arranged on both sides of the machine base 1, the film conveying mechanism 6 is used to convey the reflective film to the adsorption platform 4, and the film blanking bracket 7 is used to guide and convey the reflective film that has been punched, two groups of the X-axis moving mechanisms 2 are arranged at both ends of the adsorption platform 4, the Y-axis moving mechanism 3 is connected to the two groups of the X-axis moving mechanisms 2, and the laser head assembly 5 is connected to the movable end of the Y-axis moving mechanism 3 The laser head assembly 5 is used to emit a laser beam toward the reflective film on the adsorption platform 4; the reflective film is transported from the loading end to the adsorption platform 4 by the film conveying mechanism 6. When the reflective film reaches the adsorption platform 4, the adsorption platform 4 can adsorb and fix the reflective film through adsorption force to prevent the reflective film from being displaced or deformed during the laser drilling process, thereby improving the drilling accuracy. Through the coordinated action of the X-axis moving mechanism 2 and the Y-axis moving mechanism 3, the laser head assembly 5 can be accurately positioned on the surface of the reflective film. The laser head assembly 5 can emit a laser beam toward the reflective film to perform a drilling operation on the reflective film on the adsorption platform 4. When the drilling operation is completed, the negative pressure on the adsorption platform 4 is released, and the reflective film is guided and transported by the film unloading bracket 7 for unloading operation. The entire loading, drilling and unloading process is automated, which greatly improves the drilling processing efficiency of the reflective film.

[0037] like Figure 4As shown, the laser head assembly 5 includes a mounting plate 51, a reflector seat 52, a laser emitting tube 53, and a dust hood 54. The laser emitting tube 53 is mounted on the mounting plate 51, and the reflector seat 52 is located above the laser emitting tube 53. The reflector seat 52 is used to reflect the laser light into the laser emitting tube 53. The dust hood 54 is located on the mounting plate 51 at the back of the laser emitting tube 53 and is used to absorb the smoke and dust generated by the laser emitting tube 53 during laser drilling. The reflector seat 52 is located above the laser emitting tube 53 and its function is to accurately reflect the laser beam emitted by an external device back into the laser emitting tube 53 so that the laser beam is irradiated on the surface of the reflective film. When the laser beam is irradiated on the reflective film to drill a hole, the high temperature causes the material to evaporate or ablate, thereby generating smoke and dust. The dust hood 54 quickly absorbs this smoke and dust through negative pressure suction to keep the drilling area clean.

[0038] like Figure 4 As shown, further, the laser head assembly 5 also includes a tube clamping sleeve 55, which is arranged at the bottom of the reflector seat 52. The tube clamping sleeve 55 is provided with a chamber for the laser emitting tube 53 to extend into, and the bottom of the tube clamping sleeve 55 is provided with a tube clamping member 551, which is used to clamp the laser emitting tube 53.

[0039] like Figure 4 As shown, further, the laser head assembly 5 also includes a telescopic adjustment module 56, which is used to adjust the distance between the laser emitting tube 53 and the adsorption platform 4. The telescopic adjustment module 56 includes a fixed plate 561, a screw shaft 562 and a connecting arm 563. The fixed plate 561 is provided on the mounting plate 51, and the screw shaft 562 is rotatably connected to the fixed plate 561. The top of the screw shaft 562 has a holding portion 564, one end of the connecting arm 563 is connected to the screw shaft 562 by a thread, and the other end of the connecting arm 563 is connected to the laser emitting tube 53, and the connecting arm 563 is used to drive the laser emitting tube 53 to move up and down as the screw shaft 562 rotates. The distance between the laser emitting tube 53 and the adsorption platform 4 affects the focal position of the laser beam, which is crucial to the accuracy and effect of laser drilling. Different reflective films have different thicknesses. Through the telescopic adjustment module 56, the position of the laser emitting tube 53 can be accurately adjusted so that the focus of the laser beam falls exactly on the surface of the material, ensuring the accuracy and quality of the drilling.

[0040] like Figure 2As shown, the adsorption platform 4 is further provided with a negative pressure suction device 40 at its bottom and a plurality of adsorption holes 400 therein. The negative pressure suction device 40 is used to generate a negative pressure adsorption force. The reflective film is thin and flexible, and is easily affected by external factors, causing it to move or warp, thereby affecting the accuracy of the drilling process. The adsorption force generated by the negative pressure suction device 40 allows the adsorption platform 4 to firmly hold the reflective film in place, ensuring that it remains flat and stable during the laser drilling process.

[0041] like Figure 1 and Figure 2 As shown, further, a laser generator 80, a first reflector 81, and a second reflector 82 are included. The laser generator 80 is arranged on the back of the machine base 1 and is used to generate a laser beam. The first reflector 81 is arranged in a corner area of ​​the machine base 1, and the second reflector 82 is arranged on the movable end of the X-axis moving mechanism 2. The first reflector 81 is used to reflect the laser beam onto the second reflector 82, and the second reflector 82 is used to reflect the laser beam into the laser head assembly 5. As the source of the laser beam, the laser generator 80 generates a certain amount of heat. By separating it from the laser head assembly 5 and arranging it on the back of the machine base 1, the adverse effects of heat on the precision drilling area can be effectively avoided. The arrangement of the first reflector 81 and the second reflector 82 can accurately control the direction and position of the laser beam, ensuring that the laser beam is accurately transmitted to the laser head assembly 5.

[0042] like Figure 5 As shown, further, the film conveying mechanism 6 includes a loading rack 61, a driving motor 62, an active roller 63, a driven roller 64 and a first limit block 65. The loading rack 61 is arranged at one side end of the machine base 1, and the driven roller 64 and the active roller 63 are respectively arranged on the upper and lower sides of the loading rack 61. A gap is formed between the active roller 63 and the driven roller 64 for allowing the reflective film to pass through. The output shaft of the driving motor 62 is connected to the active roller 63 through a pulley transmission assembly. The loading rack 61 is provided with a first supporting plate 66 at the end near the machine base 1, and a first slide groove 660 is provided on the first supporting plate 66. Two first limit blocks 65 are respectively provided on both sides of the first slide groove 660. The first limit block 65 is used to limit the lateral displacement of the reflective film. The gap between the active roller 63 and the driven roller 64 allows the reflective film to pass through. When the active roller 63 rotates, it will cooperate with the driven roller 64 to clamp the reflective film and push it forward, so that the reflective film is continuously and smoothly transported to the adsorption platform 4. The setting of the first limit block 65 can prevent the reflective film from shifting during the transportation process, ensuring that the reflective film can be transported to the adsorption platform 4 area.

[0043] like Figure 6As shown, the film unloading bracket 7 further includes a unloading frame 71, guide rollers 72, a second supporting plate 73, and a second limit block 74. The unloading frame 71 is provided at the other side of the base 1. Several guide rollers 72 are provided on the unloading frame 71. The guide rollers 72 are used to guide and transport the reflective film. The second supporting plate 73 is provided at the end of the unloading frame 71 close to the base 1. The second supporting plate 73 is provided with a second chute 730. Two second limit blocks 74 are provided on both sides of the second chute 730. The second limit blocks 74 are used to limit the lateral deviation of the reflective film. The guide rollers 72 can guide, support and transport the reflective film, reduce friction and resistance of the reflective film during transportation, and prevent the reflective film from curling or folding.

[0044] like Figure 3 As shown, the machine further includes an upper shield 10, which is provided on the machine base 1 and is used to cover and protect the laser head assembly 5. The upper shield 10 not only protects the operator, but also prevents environmental pollutants such as dust and moisture from entering the interior of the equipment, thereby protecting the laser head assembly 5 and the reflective film, reducing the frequency of equipment failures, and extending the service life of the equipment.

[0045] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser precision drilling device for a reflective film, characterized in that: It includes a machine base, an X-axis moving mechanism, a Y-axis moving mechanism, an adsorption table, a laser head assembly, a diaphragm conveying mechanism, and a diaphragm unloading bracket; The adsorption platform is arranged on the machine base, and is used to adsorb the reflective film to be punched; The film conveying mechanism and the film unloading bracket are respectively arranged on both sides of the machine base, the film conveying mechanism is used to convey the reflective film to the adsorption table, and the film unloading bracket is used to guide and convey the reflective film after the punching; Two sets of X-axis moving mechanisms are provided at both ends of the adsorption platform, the Y-axis moving mechanism is connected to the two sets of X-axis moving mechanisms, the laser head assembly is connected to the movable end of the Y-axis moving mechanism, and the laser head assembly is used to emit a laser beam toward the reflective film on the adsorption platform; Among them, the laser head assembly includes a mounting plate, a reflector seat, a laser emitting tube and a dust hood. The laser emitting tube is arranged on the mounting plate, the reflector seat is arranged above the laser emitting tube, and the reflector seat of the laser emitting tube is used to reflect the laser into the laser emitting tube. The dust hood is arranged on the mounting plate on the back of the laser emitting tube, and the dust hood is used to absorb the smoke and dust generated by the laser emitting tube during laser drilling.

2. The laser precision drilling device for a reflective film according to claim 1, characterized in that: The laser head assembly also includes a clamping sleeve, which is arranged at the bottom of the reflector seat. A cavity is provided inside the clamping sleeve for the laser emitting tube to extend into. A clamping piece is provided at the bottom of the clamping sleeve, and the clamping piece is used to clamp the laser emitting tube.

3. The laser precision drilling device for a reflective film according to claim 2, characterized in that: The laser head assembly further includes a telescopic adjustment module, which is used to adjust the distance between the laser emitting tube and the adsorption platform; The telescopic adjustment module includes a fixed plate, a screw shaft and a connecting arm. The fixed plate is arranged on the mounting plate. The screw shaft is rotatably connected to the fixed plate. The top of the screw shaft has a holding portion. One end of the connecting arm is connected to the screw shaft by a thread, and the other end of the connecting arm is connected to the laser emitting tube. The connecting arm is used to drive the laser emitting tube to move up and down as the screw shaft rotates.

4. The laser precision drilling device for a reflective film according to claim 1, characterized in that: A negative pressure suction device is provided at the bottom of the adsorption platform, and a plurality of adsorption holes are provided on the adsorption platform. The negative pressure suction device is used to enable the adsorption platform to generate a negative pressure adsorption force.

5. The laser precision drilling device for a reflective film according to claim 1, characterized in that: It also includes a laser generator, a first reflecting mirror and a second reflecting mirror; The laser generator is arranged on the back of the machine base, and is used to generate a laser beam. The first reflector is arranged in a corner area of ​​the machine base, and the second reflector is arranged on the movable end of the X-axis moving mechanism. The first reflector is used to reflect the laser beam onto the second reflector, and the second reflector is used to reflect the laser beam into the laser head assembly.

6. The laser precision drilling device for a reflective film according to claim 1, characterized in that: The film conveying mechanism includes a loading rack, a driving motor, an active roller shaft, a driven roller shaft and a first limit block; The loading frame is arranged at one end of the machine base, the driven roller and the active roller are respectively arranged on the loading frame, a gap is formed between the active roller and the driven roller for the reflective film to pass through, and the output shaft of the driving motor is connected to the active roller through a pulley transmission assembly; The loading rack is provided with a first supporting plate at the end close to the machine base, the first supporting plate is provided with a first slide groove, and two first limiting blocks are respectively provided on both sides of the first slide groove, and the first limiting blocks are used to limit the lateral displacement of the reflective film.

7. The laser precision drilling device for a reflective film according to claim 1, characterized in that: The diaphragm blanking bracket includes a blanking frame, a guide roller, a second supporting plate and a second limiting block; The unloading rack is arranged at the other side end of the machine base, and several guide rollers are arranged on the unloading rack. The guide rollers are used to guide and transport the reflective film. The second supporting plate is arranged at the end of the unloading rack close to the machine base. The second supporting plate is provided with a second slide groove, and two second limit blocks are respectively arranged on both sides of the second slide groove. The second limit blocks are used to limit the lateral displacement of the reflective film.

8. The laser precision drilling device for a reflective film according to any one of claims 1 to 7, characterized in that: It also includes an upper shield, which is arranged on the machine base and is used to cover and protect the laser head assembly.

Images