A laser engraving inspection machine

Abstract

This utility model discloses a laser engraving inspection machine, including a frame, a feeding device, a picking mechanism, a driver, a turntable, a vision inspection mechanism, and several laser engraving devices, each of which includes at least one laser engraving machine. The turntable is rotatably connected to the frame, and the driver is connected to the turntable and used to drive the turntable to rotate. The turntable is provided with multiple jigs arranged circumferentially at intervals to support multiple products to be laser engraved. The feeding device is used to automatically provide products to be laser engraved. The picking mechanism, two laser engraving devices, and the vision inspection mechanism are arranged sequentially on the outer side of the turntable along the rotation direction of the turntable. The picking mechanism is used to place multiple products to be laser engraved on the feeding device onto the jigs on the turntable. The multiple laser engraving devices are used to laser engrave the products on the jigs. The vision inspection mechanism is used to detect whether the content engraved on the surface of the product is qualified. This application mainly solves the technical problem of how to improve the efficiency of laser engraving of products.

Description

Technical Field

[0001] This utility model relates to the technical field of laser engraving equipment, and in particular to a laser engraving inspection machine. Background Technology

[0002] Currently, most atomizers are laser-engraved to create markings on their surfaces. These markings can be used to enhance the product's appearance or for anti-counterfeiting purposes. The markings can include the product's brand logo, model number, production date, batch number, and other information. The engravings can be various exquisite patterns, designs, or text, adding an artistic and personalized touch to the product and meeting the aesthetic needs of different consumers. Anti-counterfeiting measures involve creating unique, difficult-to-replicate patterns or codes on the surface using laser engraving, thus serving as anti-counterfeiting markers to help consumers distinguish genuine products from fakes and protect brand image and consumer rights.

[0003] During laser engraving, the laser impacts and cuts the product surface, resulting in a degree of cleanliness and roughness, improved mechanical properties, enhanced fatigue resistance, increased adhesion to coatings, and fingerprint-resistant, scratch-resistant, and slip-resistant properties. Compared to traditional ink printing, laser engraving requires no auxiliary materials, has no consumables, and produces no pollution, while offering simple and flexible processing. Simply set the graphics and text on a computer, and the laser can quickly complete the marking process, resulting in high efficiency.

[0004] Currently, the main method for laser engraving products is as follows: A worker places the product on a fixture with the side to be engraved facing upwards. The fixture with the product is then placed on the laser engraving machine and secured. Next, the pneumatic button on the laser engraving machine is pressed, and the machine engraves the preset pattern or text onto the product surface. After laser engraving is complete, the worker removes the product from the fixture and places it on a conveyor belt. Another worker on the conveyor belt then checks whether the engraved pattern or text is up to standard. This manual loading, unloading, and inspection method is inefficient, and manual inspection may also lead to omissions or false positives.

[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0006] This utility model provides a laser engraving inspection machine, which mainly solves the technical problem of how to improve the efficiency of laser engraving on products.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A laser engraving inspection machine includes a frame and a feeding device, a picking mechanism, a driver, a turntable, a vision inspection mechanism, and a plurality of laser engraving devices respectively connected to the frame, each of the laser engraving devices including at least one laser engraving machine;

[0009] The turntable is rotatably connected to the frame. The driver is connected to the turntable and drives the turntable to rotate relative to the frame. The turntable is provided with a plurality of jigs arranged circumferentially and used to support a plurality of products to be laser-engraved. The feeding device is used to automatically provide products to be laser-engraved. The picking mechanism, the two laser engraving devices, and the vision inspection mechanism are arranged sequentially on the outer side of the turntable along the rotation direction of the turntable. The picking mechanism is used to place a plurality of products to be laser-engraved on the feeding device onto the jigs of the turntable. The plurality of laser engraving devices are used to laser engrave the products on the jigs. The vision inspection mechanism is used to detect whether the content engraved on the surface of the product is qualified.

[0010] In one of the technical solutions, two laser engraving devices are provided on the outer side of the turntable. The multiple products on the fixture are divided into two parts. One laser engraving device is used to laser engrave one part of the products on the fixture, and the other laser engraving device is used to laser engrave the other part of the products on the fixture. The two laser engraving devices are configured to perform engraving operations simultaneously.

[0011] In one of the technical solutions, both laser engraving devices include two laser engraving machines arranged adjacent to each other, so that the laser engraving inspection machine includes four laser engraving machines. The four laser engraving machines are configured to perform engraving operations simultaneously, and each laser engraving machine is used to laser engrave at least three sequentially adjacent products.

[0012] In one of the technical solutions, the visual inspection mechanism includes a lateral movement module and a camera. The camera is used to acquire images of products on the fixture. The lateral movement module is connected to the frame and the camera respectively, and is used to drive the camera to perform lateral movement, so that the camera can sequentially acquire images of multiple products on the fixture.

[0013] In one of the technical solutions, the material handling mechanism comprises a first linear module, a second linear module, a third linear module, a feeding module, and a discharging module;

[0014] The first linear module, the second linear module, and the third linear module are connected in sequence. The feeding module and the unloading module are both connected to the third linear module. The feeding module is used to feed multiple products from the feeding device onto the fixture. The unloading module is used to unload multiple engraved and inspected products from the fixture to a designated position.

[0015] In one of the technical solutions, the feeding device includes a transport device and a carrier. The carrier is used to load multiple products, the transport device is used to drive the carrier to transport, the loading module is used to pick up multiple products from the carrier and load the products onto the fixture, and the unloading module is used to at least put multiple engraved and qualified products from the fixture back onto the carrier.

[0016] In one of the technical solutions, a defective product collection box is provided between the transport device and the turntable, and the unloading module is also used to place multiple engraved and unqualified products on the fixture into the defective product collection box.

[0017] In one of the technical solutions, the laser engraving inspection machine further includes a replenishment mechanism, which is used to receive products that have been engraved and qualified from the outside and transfer the products to the range of motion of the picking mechanism. The loading module or the unloading module is also used to place the products on the replenishment mechanism onto the carrier.

[0018] In one of the technical solutions, the feeding mechanism includes a fourth linear module and a feeding bin. The feeding bin is used to hold multiple engraved and qualified products. The fourth linear module connects the frame and the feeding bin and is used to drive the feeding bin to move outward or move between the transport device and the turntable.

[0019] In one of the technical solutions, a pressure block is connected to one side of each fixture. The pressure block is slidably connected to the turntable in the lateral direction. An elastic element is connected between the pressure block and the fixture. The pressure block has a tendency to press multiple products on the fixture in the lateral direction due to the elastic force of the elastic element.

[0020] The turntable is provided with an unlocking mechanism fixedly connected to the frame in the middle area of ​​the plurality of fixtures. The unlocking mechanism is used to push the pressure block laterally away from the plurality of products.

[0021] Compared with the prior art, the laser engraving inspection machine provided by this utility model has at least the following beneficial effects:

[0022] When the laser engraving inspection machine of this solution is working, the feeding device first automatically feeds the products to be engraved. Then, the picking mechanism transfers multiple products from the feeding device to the fixture on the turntable. The turntable then rotates under the drive of the driver, so that multiple products on the fixture can rotate into the working range of the laser engraving device. Then, multiple laser engraving devices perform laser engraving on the products, so that the specified pattern or text is formed on the surface of the products. Immediately afterwards, the turntable continues to rotate under the drive of the driver, so that multiple products with the specified content already engraved on the fixture are moved to the side of the vision inspection mechanism. The vision inspection mechanism checks whether the content engraved on the surface of the products is qualified. Finally, the products are unloaded automatically or manually.

[0023] As can be seen from the above, this solution can realize the functions of automatic product feeding and automatic detection after engraving. This solution replaces the traditional manual feeding and manual detection methods, which is conducive to significantly improving the production efficiency of products that require laser engraving. Moreover, it can also avoid the phenomenon of false detection or missed detection caused by human factors. In addition, this solution uses multiple laser engraving devices, and multiple laser engraving devices perform laser engraving operations simultaneously, which is conducive to further improving the production efficiency of products that require laser engraving. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a laser engraving inspection machine provided in an embodiment of this application;

[0026] Figure 2 A top view of a laser engraving inspection machine provided in an embodiment of this application;

[0027] Figure 3 A front view of a laser engraving inspection machine provided in an embodiment of this application;

[0028] Figure 4 A side view of a laser engraving inspection machine provided in an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the structure of multiple fixtures assembled on a turntable according to an embodiment of this application.

[0030] Figure label:

[0031] 1. Frame; 2. Feeding device; 21. Conveying device; 22. Carrier; 3. Picking mechanism; 31. First linear module; 32. Second linear module; 33. Third linear module; 34. Loading module; 35. Unloading module; 4. Driver; 5. Turntable; 6. Vision inspection mechanism; 61. Lateral movement module; 62. Camera; 7. Laser engraving device; 71. Laser engraving machine; 8. Fixture; 9. Defective product collection box; 10. Replenishment mechanism; 101. Fourth linear module; 102. Replenishment bin; 11. Press block; 12. Unlocking mechanism. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0034] It should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] Please refer to the following: Figures 1 to 5This utility model provides a laser engraving inspection machine, which mainly includes a frame 1 and a feeding device 2, a picking mechanism 3, a driver 4, a turntable 5, a vision inspection mechanism 6, and several laser engraving devices 7, all connected to the frame 1. Each laser engraving device 7 includes at least one laser engraving machine 71. The turntable 5 is rotatably connected to the frame 1 with a vertical axis as the pivot. The driver 4 is connected to the turntable 5 and is used to drive the turntable 5 to rotate relative to the frame 1. The turntable 5 is provided with a plurality of jigs 8 arranged circumferentially and spaced apart to support a plurality of products to be laser engraved. The picking mechanism 3, the two laser engraving devices 7, and the vision inspection mechanism 6 are arranged sequentially on the outer side of the turntable 5 along the rotation direction of the turntable 5.

[0038] Specifically, when the laser engraving inspection machine of this solution is working, the feeding device 2 first automatically feeds the products to be engraved. Then, the picking mechanism 3 transfers multiple products from the feeding device 2 to one of the fixtures 8 on the turntable 5. The turntable 5 then rotates under the drive of the driver 4, so that multiple products on the fixture 8 can rotate into the working range of the laser engraving device 7. Then, multiple laser engraving devices 7 simultaneously laser engrave the products, so that the specified pattern or text is formed on the surface of the products. Immediately afterwards, the turntable 5 continues to rotate under the drive of the driver 4, so that multiple products with the specified content already engraved on the fixture 8 are moved to one side of the vision inspection mechanism 6. The vision inspection mechanism 6 checks whether the content engraved on the surface of the products is qualified. Finally, the products are unloaded automatically or manually.

[0039] The following provides a more detailed explanation of the specific structure of each mechanism or device.

[0040] Please refer to the following: Figures 1 to 4 The feeding device 2 specifically includes a transport device 21 and a carrier 22. The transport device 21 is used to drive the carrier 22 for transport. The transport device 21 is preferably a belt conveyor, but it can also be designed as a chain conveyor. The carrier 22 is used to load multiple products. During operation, the products to be engraved can be pre-placed into the carrier 22 from the outside, and then the transport device 21 transports the carrier 22 to the working range of the picking mechanism 3, so that the picking mechanism 3 can pick up the products to be engraved from the feeding device 2.

[0041] Please refer to the following: Figures 1 to 5The material handling mechanism 3 specifically includes a first linear module 31, a second linear module 32, a third linear module 33, a feeding module 34, and a discharging module 35. The first linear module 31 is fixed to the frame 1. The first linear module 31, the second linear module 32, and the third linear module 33 are connected sequentially. The feeding module 34 and the discharging module 35 are both connected to the third linear module 33. The first linear module 31 drives the second linear module 32, the third linear module 33, the feeding module 34, and the discharging module 35 to work together... Moving in the X direction, the second linear module 32 drives the third linear module 33, the loading module 34, and the unloading module 35 to move together in the Y direction. The third linear module 33 drives the loading module 34 and the unloading module 35 to move together in the Z direction. The loading module 34, driven by the linkage of the three linear modules, loads multiple products from the carrier 22 onto the fixture 8. The unloading module 35, driven by the linkage of the three linear modules, unloads multiple engraved and inspected products from the fixture 8 to a designated position. This design of the picking mechanism 3 allows it to simultaneously perform loading and unloading functions, saving equipment costs and reducing space requirements while matching the laser engraving cycle time. Preferably, the unloading module 35, driven by the linkage of the three linear modules, unloads multiple engraved and inspected products from the fixture 8 onto the carrier 22, so that the carrier 22 both carries the products to be engraved and receives engraved products whose engraving content has been inspected and found to be qualified.

[0042] Please refer to the following: Figures 1 to 5 A defective product collection box 9 is provided between the transport device 21 and the turntable 5. The unloading module 35 is also used to place the engraved and unqualified products on the fixture 8 into this defective product collection box 9 so as to automatically reject the engraved defective products. Based on this, the laser engraving inspection machine in this embodiment also includes a feeding mechanism 10. The feeding mechanism 10 includes a fourth linear module 101 and a feeding bin 102 connected to each other. During operation, the fourth linear module 101 drives the feeding bin 102 to move outward along the Y direction. Multiple engraved qualified products are placed into the feeding bin 102 manually or automatically. Then, the fourth linear module 101 drives the feeding bin 102 to move between the transport device 21 and the turntable 5, so that multiple products on the feeding bin 102 are moved into the activity range of the picking mechanism 3. Finally, the loading module 34 or the unloading module 35 places the products in the feeding bin 102 onto the carrier 22, so that the carrier 22 can be filled with engraved products with qualified engraving content and transported to the next station under the drive of the transport device 21 in a full-load state.

[0043] Please refer to the following: Figures 1 to 5Each fixture 8 has a pressure block 11 connected to one side. The pressure block 11 is slidably connected to the turntable 5 in the lateral direction, and an elastic element (not shown in the figure) is connected between the pressure block 11 and the fixture 8. The elastic element is preferably a spring. The pressure block 11, under the elastic force of the elastic element, has a tendency to press the multiple products on the fixture 8 in the lateral direction, ensuring that the multiple products on the fixture 8 will not move during subsequent laser engraving, thus improving the stability and reliability of laser engraving of multiple products. Based on this, the turntable 5 is provided with an unlocking mechanism 12 fixedly connected to the frame 1 in the middle area of ​​the multiple fixtures 8. The unlocking mechanism 12 is used to push the pressure block 11 away in the lateral direction, so that multiple products to be engraved can be placed into the fixture 8, and multiple engraved and inspected products in the fixture 8 can be moved outward.

[0044] Please refer to the following: Figures 1 to 4 Preferably, two laser engraving devices 7 are provided on the outer side of the turntable 5. Multiple products on the fixture 8 are divided into two parts. One laser engraving device 7 is used to laser engrave one part of the products on the fixture 8, and the other laser engraving device 7 is used to laser engrave the other part of the products on the fixture 8. The two laser engraving devices 7 are configured to perform engraving operations simultaneously. Taking a fixture 8 that accommodates 12 products as an example, one laser engraving device 7 laser engraves products at positions 1 to 6 on one fixture 8, and the other laser engraving device 7 laser engraves products at positions 7 to 12 on the other fixture 8. More preferably, each laser engraving device 7 includes two adjacent laser engraving machines 71, so that the laser engraving inspection machine includes four laser engraving machines 71. The four laser engraving machines 71 are configured to perform engraving operations simultaneously. Each laser engraving machine 71 is used to laser engrave at least three sequentially adjacent products, so that the laser engraving operation of 12 products can be completed quickly at once, thereby further improving the efficiency of product laser engraving.

[0045] Please see Figure 1 The visual inspection mechanism 6 specifically includes a lateral movement module 61 and a camera 62. The lateral movement module 61 is fixed on the frame 1 and drives the camera 62 to move laterally in the X direction, enabling the camera 62 to sequentially acquire images of multiple products on the fixture 8 for rapid inspection. The camera 62 is preferably an AI camera. Taking the oil cup of an atomizer as an example, through deep learning, the AI ​​camera creates a template for the laser engraving content on the surface of the oil cup, including logos, English letters, numbers, symbols, and industry identification codes. Then, by pre-setting a certain number of qualified products, the AI ​​camera continuously takes pictures and learns. The longer the AI ​​camera collects products and the longer the learning time, the more accurate the data becomes, and the database generated for the laser engraving content will continuously improve itself.

[0046] In summary, this solution enables automatic product feeding, automatic detection, and automatic sorting and unloading after engraving. It replaces traditional manual feeding, detection, and unloading methods, significantly improving production efficiency for products requiring laser engraving. Furthermore, it avoids false or missed detections caused by human error. In addition, the solution utilizes multiple laser engraving devices 7, which perform laser engraving operations simultaneously, further enhancing production efficiency.

[0047] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A laser engraving inspection machine, characterized in that, It includes a frame and a feeding device, a picking mechanism, a driver, a turntable, a vision inspection mechanism and several laser engraving devices respectively connected to the frame, each of the laser engraving devices including at least one laser engraving machine; The turntable is rotatably connected to the frame. The driver is connected to the turntable and drives the turntable to rotate relative to the frame. The turntable is provided with a plurality of jigs arranged circumferentially and used to support a plurality of products to be laser-engraved. The feeding device is used to automatically provide products to be laser-engraved. The picking mechanism, the two laser engraving devices, and the vision inspection mechanism are arranged sequentially on the outside of the turntable along the rotation direction of the turntable. The picking mechanism is used to place a plurality of products to be laser-engraved on the feeding device onto the jigs of the turntable. The plurality of laser engraving devices are used to simultaneously laser engrave the products on the jigs. The vision inspection mechanism is used to detect whether the content engraved on the surface of the product is qualified.

2. The laser engraving inspection machine of claim 1, wherein, Two laser engraving devices are provided on the outer side of the turntable. The multiple products on the fixture are divided into two parts. One laser engraving device is used to laser engrave one part of the products on one of the fixtures, and the other laser engraving device is used to laser engrave another part of the products on another fixture. The two laser engraving devices are configured to perform engraving operations simultaneously.

3. The laser engraving inspection machine of claim 2, wherein, Both laser engraving devices include two laser engraving machines arranged adjacent to each other, so that the laser engraving inspection machine includes four laser engraving machines. The four laser engraving machines are configured to perform engraving operations simultaneously, and each laser engraving machine is used to laser engrave at least three sequentially adjacent products.

4. The laser engraving inspection machine of claim 1, wherein, The visual inspection mechanism includes a lateral movement module and a camera. The camera is used to acquire images of the products on the fixture. The lateral movement module is connected to the frame and the camera respectively, and is used to drive the camera to perform lateral movement, so that the camera can sequentially acquire images of multiple products on the fixture.

5. The laser engraving inspection machine of claim 1, wherein, The material handling mechanism includes a first linear module, a second linear module, a third linear module, a feeding module, and a discharging module; The first linear module, the second linear module, and the third linear module are connected in sequence. The feeding module and the unloading module are both connected to the third linear module. The feeding module is used to feed multiple products from the feeding device onto the fixture. The unloading module is used to unload multiple engraved and inspected products from the fixture to a designated position.

6. The laser engraving inspection machine of claim 5, wherein, The feeding device includes a transport device and a carrier. The carrier is used to load multiple products. The transport device is used to drive the carrier to transport. The loading module is used to pick up multiple products from the carrier and load the products onto the fixture. The unloading module is used to at least put multiple engraved and qualified products from the fixture back onto the carrier.

7. The laser engraving inspection machine of claim 6, wherein, A defective product collection box is provided between the transport device and the turntable. The unloading module is also used to place the engraved and unqualified products on the fixture into the defective product collection box.

8. The laser engraving inspection machine of claim 7, wherein, The laser engraving inspection machine also includes a replenishment mechanism, which is used to receive products that have been engraved and qualified from the outside and transfer the products to the range of motion of the picking mechanism. The loading module or the unloading module is also used to place the products on the replenishment mechanism onto the carrier.

9. The laser engraving inspection machine of claim 8, wherein, The feeding mechanism includes a fourth linear module and a feeding bin. The feeding bin is used to hold multiple engraved and qualified products. The fourth linear module is connected to the frame and the feeding bin, and is used to drive the feeding bin to move outward or between the transport device and the turntable.

10. The laser engraving inspection machine of claim 1, wherein, Each of the fixtures is connected to a pressure block on one side. The pressure block is slidably connected to the turntable in the lateral direction. An elastic element is connected between the pressure block and the fixture. The pressure block is subjected to the elastic force of the elastic element and has a tendency to press the multiple products on the fixture in the lateral direction. The turntable is provided with an unlocking mechanism in the middle area of ​​the plurality of fixtures, which is fixedly connected to the frame. The unlocking mechanism is used to push the pressure block away laterally.

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