A laser engraving device

Abstract

The present invention discloses a laser engraving device, comprising: a rack feeding and discharging mechanism, which includes a feeding assembly line, a discharging assembly line and a picking position, and the picking position is located between the feeding assembly line and the discharging assembly line; a tray handling mechanism, which is respectively docked with the rack feeding and discharging mechanism and the tray transfer mechanism, so as to transport the tray back and forth between the rack feeding and discharging mechanism and the tray transfer mechanism; a tray transfer mechanism, which includes a tray fixture for fixing the tray on the tray transfer mechanism; a product handling mechanism, which is respectively docked with the flipping mechanism and the tray transfer mechanism, and is used for transporting the product back and forth between the flipping mechanism and the tray transfer mechanism; a flipping mechanism for flipping the product; and a laser engraving mechanism located above the flipping mechanism for laser engraving the product on the flipping mechanism. The present invention improves the laser engraving efficiency and quality of the product, increases the yield rate, saves labor, realizes an integrated flow-type laser engraving work process, and is more convenient and fast.

Description

Technical Field

[0001] The present invention relates to the field of laser engraving technology, and particularly to a laser engraving device. Background Art

[0002] In the existing laser engraving device, the feeding pipeline and the discharging pipeline are respectively arranged on both sides of the device. Its working process is to transport the products on the trays on the racks conveyed by the feeding pipeline to the laser engraving mechanism for laser engraving, and then directly place them on new trays. After the new trays are filled with products, they are directly transported to new racks. After the new racks are filled with trays, they are discharged through the discharging pipeline. This transportation method cannot return the products to the raw material trays and then return to the raw material racks along the original path, and then be discharged through the discharging pipeline. As a result, the laser engraving accuracy of the products is relatively low, leading to a low yield rate, causing a great waste of products. Moreover, the operations such as opening the lids, loading the products before laser engraving, and closing the lids, inspecting, and unloading the products after laser engraving are all completed manually, resulting in a high labor cost, a low laser engraving efficiency, and an inability to achieve an integrated flow-type laser engraving operation. Summary of the Invention

[0003] The present invention aims to provide a laser engraving device to solve at least one of the above problems.

[0004] To achieve the above object, the technical solution of the present invention is: a laser engraving device, including a rack inlet and outlet mechanism, a tray handling mechanism, a tray transfer mechanism, a product handling mechanism, a flipping mechanism, and a laser engraving mechanism, wherein:

[0005] The rack inlet and outlet mechanism includes a feeding pipeline, a discharging pipeline, and a picking position. The picking position is located between the feeding pipeline and the discharging pipeline. The rack inlet and outlet mechanism is used to transport racks, and a number of trays are arranged in the racks, and a number of products are arranged on the trays;

[0006] The tray handling mechanism is respectively connected to the rack inlet and outlet mechanism and the tray transfer mechanism, so as to transport the trays back and forth between the rack inlet and outlet mechanism and the tray transfer mechanism;

[0007] The tray transfer mechanism includes a tray fixture for fixing the tray on the tray transfer mechanism;

[0008] The product handling mechanism is respectively connected to the flipping mechanism and the tray transfer mechanism, and is used to transport the products back and forth between the flipping mechanism and the tray transfer mechanism;

[0009] The flipping mechanism is used to flip the products;

[0010] The laser engraving mechanism is located above the flipping mechanism and is used to laser engrave the products on the flipping mechanism.

[0011] Preferably, the rack inlet and outlet mechanism further includes a lifting driving member and a rack gripper disposed on the lifting driving member. The rack gripper is used to grasp and carry the rack. The feeding pipeline and the discharging pipeline are arranged parallel to each other vertically, and the picking position is arranged on the same side of the feeding pipeline and the discharging pipeline. The lifting driving member drives the rack gripper to lift up and down, thereby driving the rack to cooperate with the feeding pipeline, the discharging pipeline, and the picking position respectively.

[0012] The rack inlet and outlet mechanism further includes a rack gripper. The feeding pipeline and the discharging pipeline are arranged parallel to each other vertically, and the picking position is arranged on the same side of the feeding pipeline and the discharging pipeline. The rack gripper is arranged to lift up and down between the feeding pipeline and the discharging pipeline and dock with the picking position.

[0013] Preferably, it further includes a tray conveying mechanism, which is respectively docked with the rack inlet and outlet mechanism and the tray handling mechanism. The tray conveying mechanism includes a first driving member and a picking board drivingly connected to the first driving member. The first driving member drives the picking board to move to pick up and convey the tray.

[0014] Preferably, the tray handling mechanism includes a second driving member and a tray gripper drivingly connected to the second driving member. A scanning gun and a first CCD camera are respectively arranged on both sides of the tray gripper, and the scanning gun is closer to the picking position than the first CCD camera.

[0015] Preferably, the product handling mechanism includes a third driving member, a lifting suction member drivingly connected to the third driving member, and a second CCD camera. The second CCD camera is closer to the side of the tray transfer mechanism than the lifting suction member.

[0016] Preferably, the flipping mechanism includes a servo motor, a rotating shaft, and a material bearing seat. The material bearing seat is arranged on the rotating shaft, and the rotating shaft is drivingly connected to the servo motor. The servo motor drives the rotating shaft to rotate, thereby driving the material bearing seat to rotate.

[0017] Preferably, it further includes a product identification mechanism, which is arranged below the product handling mechanism.

[0018] Preferably, it further includes a detection mechanism, which is arranged above the flipping mechanism.

[0019] Preferably, a defective product collection box is further arranged on one side of the flipping mechanism.

[0020] Preferably, there are two tray handling mechanisms, two tray transfer mechanisms, two product handling mechanisms, and two flipping mechanisms. The tray conveying mechanism, the tray transfer mechanism, the detection mechanism, and the flipping mechanism are arranged parallel to each other. The tray handling mechanism and the product handling mechanism are parallel to each other and perpendicular to the tray transfer mechanism.

[0021] The present invention has the following beneficial effects:

[0022] The present invention conveys and feeds the rack through the feeding assembly line on the rack inlet and outlet mechanism, then sequentially takes out the trays on the rack by the tray handling mechanism and sends them to the tray transfer mechanism, and then transports the products on the trays to the flipping mechanism by the product handling mechanism and docks with the laser engraving mechanism to realize the laser engraving process. After the laser engraving work is completed, the products are transported back to the raw material tray on the tray transfer mechanism by the product handling mechanism. After all the products on the raw material tray are completely laser engraved, the raw material tray is moved back to the raw material rack by the tray handling mechanism. After all the products on all the trays on the raw material rack are laser engraved, they are output through the discharging assembly line. Moreover, an integrated workflow such as opening the lid, feeding the product before laser engraving, closing the lid, detecting, and discharging the product after laser engraving can be realized, which improves the laser engraving efficiency and quality of the product, increases the yield rate, saves manpower, and is more convenient and fast. Brief Description of the Drawings

[0023] Figure 1 is the top view of an embodiment of the present invention;

[0024] Figure 2 is the right perspective view of an embodiment of the present invention;

[0025] Figure 3 is the front perspective view of an embodiment of the present invention;

[0026] Figure 4 is the rear perspective view of an embodiment of the present invention;

[0027] Figure 5 is the rear schematic view of the rack inlet and outlet mechanism of an embodiment of the present invention;

[0028] Figure 6 is the schematic view of the tray conveying mechanism of an embodiment of the present invention;

[0029] Figure 7 is the schematic view of the tray handling mechanism of an embodiment of the present invention;

[0030] Figure 8 is the schematic view of the product handling mechanism of an embodiment of the present invention;

[0031] Figure 9 is the schematic view of the flipping mechanism of an embodiment of the present invention;

[0032] Figure 10 is the schematic view of the product identification mechanism of an embodiment of the present invention.

[0033] Reference Signs in the Drawings:

[0034] 1 Rack inlet and outlet mechanism, 1.1 Lifting driving member, 1.2 Rack gripper, 1.3 Feeding assembly line, 1.4 Discharging assembly line, 1.5 Material taking position, 1.6 Sensor;

[0035] 2-dish conveying mechanism, 2.1 First driving member, 2.2 Dish picking plate;

[0036] 3-dish handling mechanism, 3.1 Second driving member, 3.2 Dish gripper, 3.3 Scanning gun, 3.4 First CCD camera;

[0037] 4-dish transfer mechanism, 4.1 Dish fixing member;

[0038] 5-product handling mechanism, 5.1 Third driving member, 5.2 Lifting suction member, 5.3 Second CCD camera;

[0039] 6-turning mechanism, 6.1 Servo motor, 6.2 Rotating shaft, 6.3 Material supporting seat;

[0040] 7-laser engraving mechanism;

[0041] 8-detection mechanism;

[0042] 9-defective product collection box;

[0043] 10-product identification mechanism, 10.1 Identification position;

[0044] 11-buffer platform;

[0045] 12-rack;

[0046] 13-dish. Detailed implementation manners

[0047] To further illustrate the embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0048] Refer to Figures 1-10 As shown in the figure, as an embodiment of the present invention, a laser engraving device is provided, including a rack access mechanism 1, a dish handling mechanism 3, a dish transfer mechanism 4, a product handling mechanism 5, a turning mechanism 6 and a laser engraving mechanism 7, wherein:

[0049] The rack access mechanism 1 includes a feeding assembly line 1.3, a discharging assembly line 1.4 and a picking position 1.5. The picking position 1.5 is located between the feeding assembly line 1.3 and the discharging assembly line 1.4. The rack access mechanism 1 is used to convey the rack 12, and a plurality of dishes 13 are arranged in the rack 12, and a plurality of products are arranged on the dishes 13;

[0050] The tray handling mechanism 3 is respectively docked with the rack in-out mechanism 1 and the tray transfer mechanism 4, so as to transport the tray 13 back and forth between the rack in-out mechanism 1 and the tray transfer mechanism 4;

[0051] The tray transfer mechanism 4 includes a tray fastener 4.1 for fixing the tray 13 on the tray transfer mechanism 4;

[0052] The product handling mechanism 5 is respectively docked with the flipping mechanism 6 and the tray transfer mechanism 4, and is used for transporting the product back and forth between the flipping mechanism 6 and the tray transfer mechanism 4;

[0053] The flipping mechanism 6 is used for flipping the product;

[0054] The laser engraving mechanism 7 is located above the flipping mechanism 6 and is used for laser engraving the product on the flipping mechanism 6.

[0055] In the above technical solution, first, the rack 12 is transported by the rack in-out mechanism 1 to be docked with the tray handling mechanism 3. The tray handling mechanism 3 first takes out the tray 13 at the bottom layer of the rack 12 and transports it to the tray fastener 4.1 of the tray transfer mechanism 4 and fixes it. The tray transfer mechanism 4 moves and transports the tray fastener 4.1 to the lower part of the product handling mechanism 5. The product handling mechanism 5 sucks and transports the product in the tray 13 on the tray fastener 4.1 to the flipping mechanism 6. The flipping mechanism 6 flips the product and then transports it to the lower part of the laser engraving mechanism 7. The laser engraving mechanism 7 performs laser engraving on the product. After the product is laser engraved, the flipping mechanism 6 flips the product back to its original position. The product handling mechanism 5 sucks and transports the product on the flipping mechanism 6 back into the tray 13 on the tray fastener 4.1. Then, the product handling mechanism 5 sucks and transports the remaining un-laser engraved products in the tray 13 on the tray fastener 4.1 and repeats the above steps. After all the products on the tray 13 are laser engraved, the tray transfer mechanism 4 transports the tray fastener 4.1 and the tray 13 to be docked with the tray handling mechanism 3. The tray handling mechanism 3 transports the tray 13 back to the bottom layer of the rack 12. Then, the tray handling mechanism 3 takes out the tray 13 at the second-to-last layer, and then repeats the above operation steps until all the products on the trays 13 on the rack 12 are laser engraved and output from the other side of the rack in-out mechanism 1. The present invention improves the laser engraving efficiency and quality of the product, improves the yield rate, saves manpower, and realizes an integrated and streamlined laser engraving work process, which is more convenient and fast.

[0056] Refer to Figure 2As shown in the figure, in this embodiment, the rack inlet and outlet mechanism 1 further includes a lifting drive member 1.1 and a rack gripper 1.2 provided on the lifting drive member 1.1. The rack gripper 1.2 is used to grab and transport the rack 12. The feeding pipeline 1.3 and the discharging pipeline 1.4 are arranged parallel to each other vertically. The picking position 1.5 is arranged on the same side of the feeding pipeline 1.3 and the discharging pipeline 1.4. The lifting drive member 1.1 drives the rack gripper 1.2 to lift up and down, thereby driving the rack 12 to cooperate with the feeding pipeline 1.3, the discharging pipeline 1.4, and the picking position 1.5 respectively.

[0057] In the above technical solution, the feeding pipeline 1.3 conveys and feeds the rack 12 in sequence. The rack gripper 1.2 grabs the rack 12 and cooperates with other mechanisms to perform subsequent product laser engraving work. After all the products on the rack 12 are completely engraved, the rack gripper 1.2 grabs the rack 12 and conveys it to the discharging pipeline 1.4 for discharging in sequence.

[0058] Refer to Figure 6 As shown in the figure, in this embodiment, it further includes a tray conveying mechanism 2, which is respectively docked with the rack inlet and outlet mechanism 1 and the tray handling mechanism 3. The tray conveying mechanism 2 includes a first drive member 2.1 and a picking board 2.2 drivingly connected to the first drive member 2.1. The first drive member 2.1 drives the picking board 2.2 to move to pick up and convey the tray 13.

[0059] Refer to Figure 7 As shown in the figure, in this embodiment, the tray handling mechanism 3 includes a second drive member 3.1 and a tray gripper 3.2 drivingly connected to the second drive member 3.1. On both sides of the tray gripper 3.2, a barcode scanner 3.3 and a first CCD camera 3.4 are respectively arranged. Among them, the barcode scanner 3.3 is closer to the picking position 1.5 than the first CCD camera 3.4. The tray gripper 3.2 is used to grab and transport the tray 13 or perform operations such as opening and closing the cover. The barcode scanner 3.3 is used to identify and scan the two-dimensional code on the tray 13. On the one hand, it can perform different laser engraving processes according to different categories of trays, and on the other hand, it can prevent other products from being mixed into the processing. The first CCD camera 3.4 is used to take pictures and align the tray fixture 4.1 on the tray transfer mechanism 4 to ensure that the tray gripper 3.2 can accurately cooperate the tray with the tray fixture 4.1.

[0060] Refer to Figure 8As shown in the figure, in this embodiment, the product handling mechanism 5 includes a third driving member 5.1, a lifting and sucking member 5.2 and a second ccd camera 5.3 that are drivingly connected to the third driving member 5.1. The second ccd camera 5.3 is closer to the side of the tray transfer mechanism 4 than the lifting and sucking member 5.2. A plurality of suction heads 5.21 are provided below the lifting and sucking member 5.2. The third driving member 5.1 drives the lifting and sucking member 5.2 and the second ccd camera 5.3 to move above the tray 13 on the tray fixture 4.1 of the tray transfer mechanism 4. First, the second ccd camera 5.3 takes pictures of the products on the tray 13 to ensure that the suction heads 5.21 on the lifting and sucking member 5.2 can be accurately aligned with the products. Then, the lifting and sucking member 5.2 descends, sucks up the products through the suction heads 5.21, and then the third driving member 5.1 drives the lifting and sucking member 5.2 to move above the receiving seat 6.3 of the flipping mechanism 6. The lifting and sucking member 5.2 descends, and the suction heads 5.21 place the products on the receiving seat 6.3, completing the process of handling and loading the products.

[0061] Refer to Figure 9 As shown in the figure, in this embodiment, the flipping mechanism 6 includes a servo motor 6.1, a rotating shaft 6.2 and a receiving seat 6.3. The receiving seat 6.3 is arranged on the rotating shaft 6.2, and the rotating shaft 6.2 is drivingly connected to the servo motor 6.1. The receiving seat 6.3 is used to carry products, and the servo motor 6.1 drives the rotating shaft 6.2 to rotate, thereby driving the receiving seat 6.3 to rotate.

[0062] Refer to Figure 10 As shown in the figure, in this embodiment, a product identification mechanism 10 is further included. It is arranged below the product handling mechanism 5. A plurality of identification positions 10.1 are arranged on the product identification mechanism 10, which are used to correspond to the suction heads 5.21 on the lifting and sucking member 5.2 one by one to identify the products on the suction heads 5.21, avoid repeated laser engraving of products, and can call different programs according to different products to enable the laser engraving mechanism to engrave different contents.

[0063] In this embodiment, a detection mechanism 8 is further included. It is arranged above the flipping mechanism 6. A defective product collection box 9 is also arranged on one side of the flipping mechanism 6. The detection mechanism 8 is used to detect the products after laser engraving. The products that pass the laser engraving test are conveyed back to the rack 12 along the original path and then output, while the products that fail the laser engraving test are conveyed to the defective product collection box 9 for subsequent processing.

[0064] In this embodiment, there are two tray handling mechanisms 3, two tray transfer mechanisms 4, two product handling mechanisms 5, and two flipping mechanisms 6. The tray conveying mechanism 2, the tray transfer mechanism 4, the detection mechanism 8, and the flipping mechanism 6 are arranged parallel to each other and are jointly arranged on the workbench. The tray handling mechanism 3 and the product handling mechanism 5 are parallel to each other and perpendicular to the tray transfer mechanism 4, and the tray handling mechanism 3 and the product handling mechanism 5 are located above the workbench. This setting further improves the laser engraving efficiency and also makes the structure of this device more compact and occupies a smaller area.

[0065] Refer to Figure 2 and Figure 5 As shown, in this embodiment, the material taking position 1.5 is located between the tray conveying mechanism 2 and the rack gripper 1.2. A sensor 1.6 is installed at the material taking position 1.5 to detect whether the material taking plate 2.2 is at the material taking position 1.5, ensuring that the material taking plate 2.2 and the rack 12 on the rack gripper 1.2 can be accurately docked and matched.

[0066] In this embodiment, a buffer platform 11 is further included. After the tray gripper 3.2 opens the cover of the tray 13, it can grab and temporarily store the cover. When the number of opened covers is large, the covers can be placed on the buffer platform 11 for stacking and temporary storage.

[0067] The working process of this embodiment is as follows:

[0068] The feeding pipeline 1.3 feeds the rack 12. The rack gripper 1.2 grabs the rack 12 and moves it to the material taking position 1.5. The material taking plate 2.2 moves to the material taking position 1.5 to take out the material tray 13 at the bottom layer of the rack 12. The material tray gripper 3.2 moves above the material taking plate 2.2. After the barcode scanner 3.3 scans the material tray 13 on the material taking plate 2.2, the material tray gripper 3.2 grabs and moves the material tray 13 to the material tray fixture 4.1 of the material tray transfer mechanism 4. The material tray fixture 4.1 positions and fixes the material tray 13. Then the material tray gripper 3.2 pulls up the cover on the material tray 13 and places it on the buffer platform 11. Then the material tray 13 moves to below the product handling mechanism 5 along with the material tray fixture 4.1. The product identification mechanism 10 identifies the products on the material tray 13 to determine whether the products have been laser engraved. After that, the second ccd camera 5.3 takes pictures and aligns the un-laser engraved products. Then the product handling mechanism 5 sucks and transports the un-laser engraved products to the material receiving seat 6.3 of the flipping mechanism 6. The servo motor 6.1 drives the rotating shaft 6.2, the material receiving seat 6.3 and the products to be flipped by 90°. Then it is docked with the laser engraving mechanism 7 to complete the laser engraving process. After the laser engraving is completed, the flipping mechanism 6 flips the products back to the original position and is docked with the detection mechanism 8 to detect the products. If the laser engraving of the products is unqualified, the product handling mechanism 5 transports the unqualified products to the defective product collection box 9. If the laser engraving of the products is qualified, the product handling mechanism 5 transports the qualified products back to the material tray fixture 4.1. Then it grabs the un-laser engraved products on the material tray 13 and moves them to the flipping mechanism 6 and repeats the above operation steps until all the products on the material tray 13 are completely laser engraved. Then the material tray fixture 4.1 transports the material tray 13 below the material tray gripper 3.2. The material tray gripper 3.2 grabs the cover on the buffer platform 11 and covers it on the material tray 13. Then it grabs and transports the material tray 13 with the cover covered to the material taking plate 2.2 of the material tray conveying mechanism 2. After that, the material taking plate 2.2 transports the material tray 13 to the material taking position 1.5 and puts the material tray 13 back to the original position at the bottom layer of the rack 12. Then it takes out the material tray 13 on the upper layer and repeats the above operation steps until all the products on all the material trays 13 on the rack 12 are completely laser engraved. Then the rack gripper 1.2 grabs the rack 12 and moves it to the discharging pipeline 1.4 for transportation out.

[0069] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes in form and details made to the present invention without departing from the spirit and scope of the present invention defined by the appended claims all fall within the protection scope of the present invention.

Claims

1. A laser engraving device, characterized in that: It includes a rack inlet / outlet mechanism, a tray handling mechanism, a tray transfer mechanism, a product handling mechanism, a flipping mechanism and a laser engraving mechanism. Among them: The rack inlet / outlet mechanism includes a feeding pipeline, a discharging pipeline and a picking position. The picking position is located between the feeding pipeline and the discharging pipeline. The rack inlet / outlet mechanism is used to convey the rack. A number of trays are arranged in the rack, and a number of products are arranged on the trays; The tray handling mechanism is respectively docked with the rack inlet / outlet mechanism and the tray transfer mechanism, so as to transport the tray back and forth between the rack inlet / outlet mechanism and the tray transfer mechanism; The tray transfer mechanism includes a tray fastener for fixing the tray on the tray transfer mechanism; The product handling mechanism is respectively docked with the flipping mechanism and the tray transfer mechanism, and is used to transport the product back and forth between the flipping mechanism and the tray transfer mechanism; The flipping mechanism is used to flip the product; The laser engraving mechanism is located above the flipping mechanism and is used to laser engrave the product on the flipping mechanism; The rack inlet / outlet mechanism further includes a lifting driving member and a rack gripper arranged on the lifting driving member. The rack gripper is used to grab and transport the rack. The feeding pipeline and the discharging pipeline are arranged parallel to each other up and down. The picking position is arranged on the same side of the feeding pipeline and the discharging pipeline. The lifting driving member drives the rack gripper to move up and down, thereby driving the rack to cooperate with the feeding pipeline, the discharging pipeline and the picking position respectively; The tray handling mechanism includes a second driving member and a tray gripper driven by the second driving member. A barcode scanner and a first CCD camera are respectively arranged on both sides of the tray gripper. The barcode scanner is closer to the feeding position than the first CCD camera; The product handling mechanism includes a third driving member and a lifting suction member and a second CCD camera driven by the third driving member. The second CCD camera is closer to the tray transfer mechanism side relative to the lifting suction member.

2. The laser engraving device according to claim 1, characterized in that: It further includes a tray conveying mechanism, which is respectively docked with the rack inlet / outlet mechanism and the tray handling mechanism. The tray conveying mechanism includes a first driving member and a picking board driven by the first driving member. The first driving member drives the picking board to move to pick up and place the tray for conveying.

3. The laser engraving device according to claim 1, characterized in that: The flipping mechanism includes a servo motor, a rotating shaft and a material bearing seat. The material bearing seat is arranged on the rotating shaft, and the rotating shaft is drivenly connected with the servo motor. The servo motor drives the rotating shaft to rotate, thereby driving the material bearing seat to rotate.

4. The laser engraving device according to claim 1, wherein: It further includes a product identification mechanism, which is arranged below the product handling mechanism.

5. The laser engraving device according to claim 1, characterized in that: It further includes a detection mechanism, which is arranged above the flipping mechanism.

6. The laser engraving device according to claim 1, characterized in that: A defective product collection box is further arranged on one side of the flipping mechanism.

7. The laser engraving device according to any one of claims 1-6, characterized in that: There are two tray handling mechanisms, two tray transfer mechanisms, two product handling mechanisms and two flipping mechanisms. The tray conveying mechanism, the tray transfer mechanism, the detection mechanism and the flipping mechanism are arranged parallel to each other. The tray handling mechanism and the product handling mechanism are parallel to each other and perpendicular to the tray transfer mechanism.

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