Laser marking equipment

Abstract

The present invention discloses a laser marking device, which includes a marking machine body, a conveying mechanism and a sorting mechanism; the marking machine body has a loading station, a marking station and a detection station, the marking machine body is used to laser code the product at the marking station and form an identification code, and scan the identification code of the product at the detection station, and confirm whether the identification code is qualified; the conveying mechanism is used to convey the product from the loading station to the marking station and the detection station in sequence; and when the marking machine body confirms that the identification code of the product at the detection station is qualified, the conveying mechanism is also used to convey the product with the qualified identification code to the qualified product discharging position; the sorting mechanism is used to sort the product with the unqualified identification code and transmit it to the unqualified product discharging position when the marking machine body confirms that the identification code of the product at the detection station is unqualified. The technical solution of the present invention can realize the automatic diversion of qualified products and unqualified products, and improve the work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, and in particular to a laser marking device. Background Art

[0002] In order to facilitate later traceability, products on the market are generally marked with QR codes or barcodes for customers and manufacturers to scan and query. In the process of mass production, due to environmental factors, human factors or equipment failures, there will always be unqualified QR code markings, resulting in scanning failures; since the number of unqualified products is relatively small, the current laser coding equipment uses manual scanning to re-inspect and screen out unqualified products after coding. This method wastes manpower, is inefficient, and has high costs; or it is only equipped with a scanning device to automatically identify unqualified products, and then they are taken out manually, which does not achieve full automation, is inefficient, and is prone to errors. Summary of the invention

[0003] The main purpose of the present invention is to provide a laser marking device, which is intended to automatically separate qualified products from unqualified products and improve production efficiency.

[0004] To achieve the above-mentioned purpose, the laser marking device proposed in the present invention is used for product coding, and the laser marking device comprises:

[0005] The marking machine body has a loading station, a marking station and a testing station. The marking machine body is used to laser code the product at the marking station and form an identification code; and scan the identification code of the product at the testing station and confirm whether the identification code is qualified;

[0006] A conveying mechanism is used to convey the product from the loading station to the marking station and the testing station in sequence; and when the marking machine body confirms that the identification code of the product on the testing station is a qualified identification code, the conveying mechanism is also used to convey the product with a qualified identification code to the qualified product discharge position; and

[0007] The sorting mechanism is used to sort the products with unqualified identification codes and transmit them to the unqualified product discharge position when the marking machine body confirms that the identification code of the product on the detection station is an unqualified identification code.

[0008] In the technical solution of the present invention, in the laser marking equipment, the marking machine body performs laser coding on the product at the marking station, scans the product at the detection station to detect whether the identification code is qualified, and conveys the product with a qualified identification code to the qualified product discharge position through the conveying mechanism, and sorts out the product with an unqualified identification code at the detection station through the sorting mechanism and conveys it to the unqualified product discharge position, which can realize the automatic diversion of qualified and unqualified products, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 the structures shown in these drawings without paying creative work.

[0010] Figure 1 It is a structural schematic diagram of an embodiment of a laser marking device of the present invention;

[0011] Figure 2 for Figure 1 A schematic diagram of the structure of the laser marking equipment from another angle;

[0012] Figure 3 for Figure 1 Front view of the laser marking equipment;

[0013] Figure 4 for Figure 1 Structural diagram of the conveying mechanism of the laser marking equipment;

[0014] Figure 5 for Figure 3 A schematic diagram of the structure of the first lifting assembly of the laser marking equipment;

[0015] Figure 6 for Figure 3 A schematic diagram of the structure of the first blocking device of the laser marking device;

[0016] Figure 7 for Figure 1 A schematic diagram of a state of a sorting mechanism of a laser marking device;

[0017] Figure 8 for Figure 7 Another state diagram of the sorting mechanism;

[0018] Fig. 9 for Figure 7 A schematic diagram of the structure of the avoidance component of the middle sorting mechanism;

[0019] Fig.10 for Figure 7 A schematic diagram of the structure of the transmission component of the sorting mechanism;

[0020] Fig.11 for Figure 7 A schematic diagram of the structure of the push assembly of the middle sorting mechanism;

[0021] Fig.12 for Figure 1The overall assembly diagram of the conveying mechanism and sorting mechanism of the laser marking equipment;

[0022] Fig.13 for Figure 1 Structural schematic diagram of the feeding device of the laser marking equipment;

[0023] Fig.14 for Fig.13 A schematic diagram of the structure of the support assembly of the intermediate loading device;

[0024] Fig.15 for Fig.13 A schematic diagram of the structure of the lifting assembly of the intermediate loading device;

[0025] Fig.16 A schematic diagram of a state of a loading process of a loading device in an embodiment of the present invention;

[0026] Fig.17 It is another state schematic diagram of the loading process of the loading device in the embodiment of the present invention;

[0027] Fig.18 It is another state schematic diagram of the loading process of the loading device in the embodiment of the present invention;

[0028] Fig.19 It is another state schematic diagram of the loading process of the loading device in the embodiment of the present invention;

[0029] Fig. 20 for Figure 1 A schematic diagram of the structure of the marking device of the laser marking equipment;

[0030] Fig.21 for Figure 1 A schematic diagram of the structure of the detection device of the laser marking equipment;

[0031] Fig. 22 A schematic structural diagram of a fixture of an embodiment of a laser marking device of the present invention;

[0032] Fig.23 for Fig. 22 Schematic diagram of the structure of the middle fixture from another angle.

[0033] Description of Figure Numbers:

[0034]

[0035]

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] The present invention provides a laser marking device 10 .

[0041] Specifically, the laser marking device 10 is used to mark a QR code or a barcode on a product. The laser marking device 10 can directly code the products one by one. Of course, the fixture 800 can also be used to carry multiple products for coding at the same time.

[0042] Reference Figures 1 to 3 , Figure 1 It is a structural schematic diagram of an embodiment of a laser marking device of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the laser marking equipment from another angle; Figure 3 for Figure 1 Front view of the laser marking equipment.

[0043] In an embodiment of the present invention, the laser marking device 10 includes a marking machine body, a conveying mechanism 100 and a sorting mechanism 200; the marking machine body has a loading station, a marking station and a detection station, the marking machine body is used to laser code the product at the marking station and form an identification code, and scan the identification code of the product at the detection station, and determine whether the identification code of the current product is qualified; the conveying mechanism 100 is used to convey the product from the loading station to the marking station and the detection station in sequence, when the marking machine body confirms that the identification code of the product at the detection station is qualified, the conveying mechanism 100 conveys the product with the current identification code as qualified to the qualified product discharge position; when the marking machine body confirms that the identification code of the product at the detection station is unqualified, the sorting mechanism 200 is used to sort the product with the current identification code as unqualified and transmit it to the unqualified product discharge position.

[0044] In the laser marking device 10 of the technical solution of the present invention, the marking machine body performs laser coding on the product at the marking station, scans the product at the detection station to detect whether the identification code is qualified, and conveys the product with a qualified identification code to the qualified product discharge position through the conveying mechanism 100, and sorts out the product with an unqualified identification code at the detection station through the sorting mechanism 200 and conveys it to the unqualified product discharge position, which can realize the automatic diversion of qualified and unqualified products, thereby improving production efficiency.

[0045] Understandably, referring to Figures 1 to 3 The main body of the marking machine includes a frame 101, a feeding device 300, a marking device 400 and a detection device 500. The frame 101 has a feeding station, a marking station and a detection station arranged in sequence; the feeding device 300 is installed on the frame 101 and is arranged corresponding to the position of the feeding station. The feeding device 300 is used to move the product to the conveying mechanism 100; the marking device 400 is installed on the frame 101 and is arranged above the conveying mechanism 100 corresponding to the position of the marking station. The marking device 400 is used to laser code the product and form an identification code when the product is in the marking station; the detection device 500 is installed on the frame 101 and is arranged above the conveying mechanism 100 corresponding to the position of the detection station. The detection device 500 is used to scan the identification code on the product when the product is in the detection station and determine whether the identification code is qualified.

[0046] It can be understood that the conveying mechanism 100 can be used in a variety of ways, for example, it can be conveyed by a belt transmission mechanism, or by a roller, or by a screw slide rail, or by a manipulator. In the embodiment of the present invention, the conveying mechanism 100 adopts a conveying method of conveying by a belt transmission mechanism, referring to Figure 1 and Figure 4The conveying mechanism 100 includes two mounting support plates 110, a conveyor belt group 120 and two guide wheel groups 130, wherein the two mounting support plates 110 are relatively spaced and installed on the frame 101, the conveyor belt group 120 is used to carry and convey the products, and the conveyor belt group 120 includes two conveyor belts 121 arranged one by one on the two mounting support plates 110, and a driving motor 122 driving the two conveyor belts 121 to synchronously drive, and the driving motor 122 drives the conveyor belt group 120 to drive, so that the products are sequentially transported from the loading station to the conveyor belt group 121. Sent to the marking station and the inspection station; the guide wheel group 130 guides the transportation of the product. The two guide wheel groups 130 are installed one-to-one on the two mounting support plates 110 through the adjustable bracket 140. The adjustable bracket 140 is used to adjust the distance between the two guide wheel groups 130, and adjust the height of the two guide wheel groups 130 relative to the conveyor belt group 120, so that products of different widths can pass through; in the embodiment of the present invention, the guide wheel group 130 adopts a smooth strip, and the adjustable bracket 140 adopts a smooth strip bracket. Furthermore, in order to facilitate the programming of the control system of the laser marking equipment 10 to control each station to perform corresponding operations, in the embodiment of the present invention, the conveyor belt group 120 of the conveying mechanism 100 is divided into a front section and a rear section, such as Figure 4 As shown, the loading station and the marking station are located in the front section, and the inspection station and the qualified product discharge station are located in the back section. In this way, the mechanisms on each station can operate independently at the same time without interfering with each other, thereby improving production efficiency.

[0047] Furthermore, in order to reduce the distance between the detection device 500 and the identification code of the marked product to improve the scanning recognition rate of the detection device 500, in the embodiment of the present invention, the marking machine body further includes a first lifting component 600, referring to Figure 3The first lifting component 600 is located below the conveying mechanism 100 and between the two conveyor belts 121 of the conveying mechanism 100. The first lifting component 600 can rise to a preset height above the conveying mechanism 100 to lift the marked product to a preset scanning position, so that the product is closer to the detection device 500, thereby reducing the distance between the detection device 500 and the identification code of the product, so that the detection device 500 can scan the identification code more clearly and accurately, avoiding the judgment error caused by the inability to clearly scan the identification code due to the large distance; during the detection process, the conveying mechanism 100 After the laser-marked product is transported from the marking station to the inspection station, the first lifting assembly 600 rises to lift the product on the conveying mechanism 100 to the preset code scanning position, and the inspection device 500 scans and identifies the product at the preset code scanning position, and determines whether the identification code of the current product is qualified based on the result of the scanning; when the inspection device 500 confirms that the identification code of the current product is a qualified identification code, the first lifting assembly 600 moves downward to return the product with a qualified identification code to the conveying mechanism 100, so that the conveying mechanism 100 can transport the product with a qualified identification code to the qualified product discharge position.

[0048] Reference Figure 5 In an embodiment of the present invention, the first lifting assembly 600 includes a first mounting plate 610, a first lifting cylinder 620 and a first positioning plate 630; wherein, the first mounting plate 610 is mounted on the frame 101, the first lifting cylinder 620 is mounted on the first mounting plate 610, a first through hole 611 is opened on the first mounting plate 610, the output end of the first lifting cylinder 620 is penetrated by the first through hole 611 and connected with the first positioning plate 630, the first positioning plate 630 is used to carry the product, and the first lifting cylinder 620 can drive the first positioning plate 630 to move up and down. It can be understood that in order to ensure that the product is always stably carried on the first positioning plate 630 during the lifting process, the first lifting assembly 600 also includes two first guide rods 640, which can play a guiding role to prevent the first positioning plate 630 from shaking during the lifting process. One end of the two first guide rods 640 is connected to the first positioning plate 630, and the other end is penetrated by the first mounting plate 610 and connected to a buffer plate 650. The buffer plate 650 is equipped with an oil pressure buffer 660. When the first lifting cylinder 620 drives the first positioning plate 630 to rise to a preset height above the conveying mechanism 100, the two first guide rods 640 rise and drive the oil pressure buffer 660 on the buffer plate 650 to abut against the first mounting plate 610. It can be understood that in other embodiments, an oil cylinder or a screw lifting mechanism can also be used as a replacement for the first lifting assembly 600.

[0049] Furthermore, in order to accurately deliver the marked product to the inspection station, the marking machine body further includes a first blocking device 700, referring to Figure 3The first blocking device 700 is arranged behind the first lifting component 600 along the conveying direction of the conveying mechanism 100 and is arranged close to the first lifting component 600; the first blocking device 700 can be raised and lowered and switched between a first initial position and a first blocking position. When the conveying mechanism 100 conveys the product to the inspection station, the first blocking device 700 rises from the first initial position and switches to the first blocking position, thereby blocking the product above the first lifting component 600. This arrangement can prevent the product from being unable to stop immediately due to inertia when the conveyor belt 121 of the conveying mechanism 100 stops.

[0050] Reference Figure 6 In an embodiment of the present invention, the first blocking device 700 includes a first slide cylinder 710 and a blocking member 720. The first slide cylinder 710 is installed on the frame 101 through a mounting seat, and the blocking member 720 is installed on a slider of the first slide cylinder 710. The first slide cylinder 710 can drive the blocking member 720 to move and switch between a first initial position and a first blocking position; wherein, a proximity sensor 730 is also provided on the blocking member 720. When the conveying mechanism 100 conveys the product to abut against the blocking member 720, the proximity sensor 730 sends a signal to the control system of the laser marking device 10 to control the driving motor 122 of the conveying mechanism 100 to stop working, thereby stopping the transmission of the conveyor belt 121.

[0051] Furthermore, in order to reduce the distance between the marking device 400 and the product to be marked so that the marking device 400 can mark a qualified identification code on the product, in the embodiment of the present invention, the marking machine body further includes a second lifting component 600a. Figure 3 , the position of the second lifting component 600a corresponding to the marking station is set below the conveying mechanism 100 and between the two conveyor belts 121 of the conveying mechanism 100. The second lifting component 600a can rise to a preset height above the conveying mechanism 100 to lift the product to the preset marking position, so that the product is closer to the marking device 400, thereby reducing the distance between the marking device 400 and the product to be marked, and at the same time, it can avoid the interference of the external environment on the marking process, and can improve the marking qualification rate of the product identification code; during the marking process, after the conveying mechanism 100 conveys the product to be marked to the marking station, the second lifting component 600a lifts the product to be marked on the conveying mechanism 100 to the preset marking position, and the marking device 400 performs laser coding on the product located at the preset marking position. After the coding is completed, the second lifting component 600a moves downward to the bottom of the conveying mechanism 100, and drops the marked product back to the two conveyor belts 121 of the conveying mechanism 100, so that the conveying mechanism 100 can convey the marked product to the detection station. Of course, it can be understood that the second lifting assembly 600a has the same structural configuration as the first lifting assembly 600, which will not be described in detail here.

[0052] Similarly, in order to accurately deliver the product to be marked to the marking station, the marking machine body also includes a second blocking device 700a, referring to Figure 3 The second blocking device 700a is arranged behind the second lifting component 600a along the conveying direction of the conveying mechanism 100 and is arranged close to the second lifting component 600a; the second blocking device 700a can be raised and lowered and switched between the second initial position and the second blocking position. When the conveying mechanism 100 conveys the product to the marking station, the second blocking device 700a rises and switches to the second blocking position, thereby blocking the product above the second lifting component 600a, so that the second lifting component 600a can lift the product to the preset marking position. Of course, it can be understood that the second blocking device 700a has the same structural setting as the first blocking device 700, which will not be described in detail here.

[0053] Reference Figures 1 to 3 , Figure 7 and Figure 8 ,as well as Fig.12 In an embodiment of the present invention, the sorting mechanism includes a avoidance wheel group 210, a transmission wheel group 220 and a pushing assembly 230; wherein the avoidance wheel group 210 is arranged at a position corresponding to the detection station, and is installed on the frame 101 so as to be switchable between a supporting state and an avoidance state. When in the avoidance state, an avoidance space is formed for the first lifting assembly 600 to switch the product between the conveying mechanism 100 and the preset code scanning position. When in the supporting state, the avoidance wheel group 210 is used to support the product; the transmission wheel group 220 is installed on the conveying mechanism 100, and is extended from the avoidance wheel group 210 to the unqualified product discharge position, so that when the avoidance wheel group 210 is in the supporting state, the avoidance wheel group 210 and the transmission wheel group 220 are docked, such as Figure 7 As shown, when the avoidance wheel set 210 is in the avoidance state, the avoidance wheel set 210 forms an avoidance space and is disconnected from the transmission wheel set 220, as shown in FIG. Figure 8 As shown; the pushing assembly 230 is installed on the frame 101, and the pushing assembly 230 is used to push the product on the avoidance wheel group 210 to the unqualified product discharge position of the transmission wheel group 220 when the avoidance wheel group 210 is in a supporting state.

[0054] When the conveying mechanism 100 conveys the product to the inspection station, the avoidance wheel set 210 is in the avoidance state, thereby forming an avoidance space, so that the first lifting assembly 600 lifts the product from the conveying mechanism 100 to the preset code scanning position for code scanning detection. When the detection device 500 confirms that the identification code of the product at the current preset code scanning position is a qualified identification code, the avoidance wheel set 210 still maintains the avoidance state, so that the first lifting assembly 600 drops the product with a qualified identification code back onto the conveying mechanism 100;

[0055] When the detection device 500 confirms that the identification code of the product at the current preset scanning position is an unqualified identification code, the avoidance wheel group 210 switches to the supporting state. Of course, it can be understood that the avoidance wheel group 210 in the supporting state at this time leaves only a space for the first jacking component 600 to descend and pass through. The first jacking component 600 moves downward to the bottom of the conveying mechanism 100, and the product is placed on the avoidance wheel group 210. At this time, the pushing component 230 pushes the product with an unqualified identification code on the avoidance wheel group 210 to the unqualified product discharge position of the transmission wheel group 220. In this way, qualified products are transported to the qualified product discharge position through the conveying mechanism 100, and unqualified products are transported to the unqualified product discharge position through the sorting mechanism 200, thereby realizing the automatic diversion of qualified products and unqualified products and improving production efficiency.

[0056] Reference Fig. 9 In the embodiment of the present invention, the avoidance wheel set 210 includes two first mounting frames 211, two first driving cylinders 212 and two movable wheel sets 213; wherein the two first mounting frames 211 are relatively arranged and mounted on the frame 101, the two first driving cylinders 212 are mounted one-to-one on the two first mounting frames 211, the two movable wheel sets 213 are connected one-to-one with the output shafts of the two first driving cylinders 212, and the two first driving cylinders 212 can drive the two movable wheel sets 213 to move closer to each other or away from each other, so that the avoidance wheel set 210 can be flexibly switched between the supporting state and the avoidance state; when the two first driving cylinders 212 drive the two movable wheels 213 to move closer to each other or away from each other, the avoidance wheel set 210 can be flexibly switched between the supporting state and the avoidance state. When the two groups 213 approach each other, the avoidance wheel group 210 is in a supporting state. When the two first driving cylinders 212 drive the two movable wheel groups 213 to move away from each other, the avoidance wheel group 210 is in an avoidance state. It can be understood that in order to make the movable wheel group 213 move smoothly, two support rods 214 are also connected under each movable wheel group 213. The ends of the two support rods 214 away from the movable wheel group 213 are penetrated by the first mounting frame 211 and can move back and forth driven by the movable wheel group 213. The two support rods 214 are used to support the movable wheel group 213 to share the gravity of the movable wheel group 213 acting on the output shaft of the first driving cylinder 212.

[0057] Reference Fig.10In an embodiment of the present invention, the transmission wheel group 220 includes a second mounting frame 221, a fixed wheel group 222 and a limit plate 223; the second mounting frame 221 is mounted on the conveying mechanism 100, and the fixed wheel group 222 is mounted on the second mounting frame 221. The product can slide on the fixed wheel group 222 under the drive of the pushing component 230, and the limit plate 223 is arranged at one end of the fixed wheel group 222 away from the avoidance wheel group 210 to form a defective product discharge position to prevent the product from detaching from the fixed wheel group 222 under the action of the driving force; in an embodiment of the present invention, the fixed wheel group 222 adopts a plurality of universal wheels arranged linearly. Of course, in other embodiments, the fixed wheel group 222 can also adopt a plurality of rows of rollers arranged linearly, or adopt a conveyor belt 121 structure.

[0058] Reference Fig.11 In the embodiment of the present invention, the pushing assembly 230 includes a third mounting frame 231, a second driving cylinder 232 and a push plate 233; the third mounting frame 231 is mounted on the frame 101, the second driving cylinder 232 is mounted on the third mounting frame 231, and the push plate 233 is mounted on the output end of the second driving cylinder 232, and the second driving cylinder 232 can drive the push plate 233 to move back and forth between the avoidance wheel group 210 and the unqualified product discharge position; when the first jacking assembly 600 places the product with an identification code of unqualified on the avoidance wheel group 210, the second driving cylinder 232 drives the push plate 233 to move from the avoidance wheel group 210 to the unqualified product discharge position to push the product with the current identification code of unqualified to the unqualified product discharge position.

[0059] Among them, the entire detection and sorting process is as follows:

[0060] Process 1: When the conveying mechanism 100 conveys the marked product from the marking station to the inspection station, the first blocking device 700 switches to the first blocking position to block the marked product above the first lifting assembly 600. At this time, the two conveyor belts 121 of the conveying mechanism 100 stop conveying, and the avoidance wheel group 210 is in the avoidance state (initial setting);

[0061] In process 2, the first lifting cylinder 620 of the first lifting assembly 600 drives the first positioning plate 630 to lift the marked products on the two conveyor belts 121 to the preset detection position, and the detection device 500 scans the products at the preset detection position and determines whether the identification code of the current product is qualified;

[0062] Process three: when the detection device 500 confirms that the identification code of the product at the current preset scanning position is a qualified identification code, the first lifting cylinder 620 drives the first positioning plate 630 to move downward to the bottom of the two conveyor belts 121, and the product with the qualified identification code falls back onto the two conveyor belts 121;

[0063] Alternatively, when the detection device 500 confirms that the identification code of the product at the current preset scanning position is an unqualified identification code, the two movable wheel groups 213 of the avoidance wheel group 210 are driven by the second driving cylinder 232 to approach each other and switch to the supporting state, and the first lifting cylinder 620 drives the first positioning plate 630 to move downward to the bottom of the two conveyor belts 121, and the product with the unqualified identification code is placed on the two movable wheel groups 213 of the avoidance wheel group 210;

[0064] Process 4: the first blocking device 700 is restored to the first initial position, and the conveying mechanism 100 conveys the products with qualified identification codes on the two conveyor belts 121 to the qualified product discharge position;

[0065] Alternatively, the second driving cylinder 232 of the pushing assembly 230 of the sorting mechanism 200 drives the push plate 233 to move toward the unqualified product discharge position, and pushes the product with the identification code as unqualified on the avoidance wheel group 210 to the unqualified product discharge position of the transmission wheel group 220. When the product reaches the unqualified product discharge position, the second driving cylinder 232 drives the push plate 233 to return, and the avoidance wheel group 210 returns to the avoidance state.

[0066] Reference Figures 1 to 3 ,as well as Fig.13 In the embodiment of the present invention, the loading device 300 includes a fourth mounting frame 310, a support assembly 320, a positioning assembly 330 and a lifting assembly 340; wherein the fourth mounting frame 310 is mounted on the frame 101 corresponding to the position of the loading station, the support assembly 320 is mounted on the fourth mounting frame 310 and is located above the conveying mechanism 100, the support assembly 320 is used for stacking products in layers, and the support assembly 320 can be switched between the supporting station and the releasing station; when the support assembly 320 is in the supporting station, it is used to support the product, and when it is in the releasing station, the support for the product is released; the positioning assembly 330 is mounted on the fourth mounting frame 310, and the support assembly 320 is installed on the fourth mounting frame 310. The frame 310 is used to position the products stacked on the support assembly 320, and when the support assembly 320 is in the release position, the products are allowed to slide downward in the vertical direction; the lifting assembly 340 is installed on the frame 101, and is located below the conveying mechanism 100 corresponding to the position of the support assembly 320. The lifting assembly 340 can rise to a preset height above the conveying mechanism 100 to receive the products released by the support assembly 320 in the release state at the preset material picking position; in this way, the support assembly 320 and the lifting assembly 340 work together to transport the layered stacked products on the support assembly 320 to the conveying mechanism 100 one by one.

[0067] Reference Fig.14In the embodiment of the present invention, the support assembly 320 includes two slide rail groups 321, two support plates 322 and two third driving cylinders 323; the two slide rail groups 321 are installed on the first mounting frame 211 and are relatively arranged on both sides of the positioning assembly 330, each slide rail group 321 includes at least one slide rail and one slider, the two support plates 322 are installed one-to-one on the sliders of the two slide rail groups 321, and the two third driving cylinders 323 are relatively installed on the fourth mounting frame 310 and are connected one-to-one with the two support plates 322. The two third driving cylinders 323 respectively drive the corresponding support plates 322 to slide closer to or away from each other, so that the support The support assembly 320 movably switches between the support position and the release position; when the two support plates 322 are in the support position, the two support plates 322 are close to each other to support the product. Of course, at this time, there is a space between the two support plates 322 for the lifting assembly 340 to pass through. When the two support plates 322 switch from the support position to the release position, the two support plates 322 slide away from each other along their respective corresponding slide rail groups 321 to allow the product to be separated from the support of the two support plates 322; it can be understood that when the products are stacked in layers on the two support plates 322, there should be a space between each two adjacent layers of products for the two support plates 322 to insert and withdraw, so that the products can be released one by one.

[0068] Reference Fig.15 The lifting assembly 340 includes a second mounting plate 341, a second positioning plate 343 and a lifting cylinder 342; the second mounting plate 341 is mounted on the frame 101, and the lifting cylinder 342 is mounted on the second mounting plate 341. The second mounting plate 341 is provided with a second through hole 3411. The output end of the lifting cylinder 342 is penetrated by the second through hole 3411 and connected with the second positioning plate 343. The lifting cylinder 342 can drive the second positioning plate 343 to move up and down to transport the products released by the supporting assembly 320 to the conveying mechanism 100; wherein, the lifting assembly 340 also includes two second guide rods 344, one end of the two second guide rods 344 is connected to the second positioning plate 343, and the other end of the two second guide rods 344 is penetrated by the second mounting plate 341. The two second guide rods 344 can reciprocate up and down with the second positioning plate 343 to guide and support the movement of the second positioning plate 343 to prevent the second positioning plate 343 from shaking due to the long rising stroke.

[0069] Reference Figures 16 to 19 The entire loading process is described as follows:

[0070] Process 1: manually stack the products in layers on the two support plates 322 of the support assembly 320. At this time, the two support plates 322 are in the support position (initial setting), such as Fig.16 As shown;

[0071] In process 2, the second positioning plate 343 of the lifting assembly 340 is driven by the lifting cylinder to rise to the preset material picking position, so that the second positioning plate 343 is in contact with the bottom product carried by the two support plates 322. At this time, the two first driving cylinders 212 of the support assembly 320 drive the corresponding support plates 322 to slide away from each other to switch to the release position to release the support for the product. At this time, the gravity of the product is fully applied to the second positioning plate 343. Fig.17 As shown;

[0072] In process three, the second positioning plate 343 of the lifting assembly 340 descends to the preset cache position, so that the bottom layer of products on the second positioning plate 343 is completely away from the height of the support plate 322, and the first layer of products stacked adjacent to the bottom layer of products on the second positioning plate 343 is about to be attached to the surface of the support plate 322. At this time, the two first driving cylinders 212 of the support assembly 320 drive the corresponding support plates 322 to slide close to each other and switch to the supporting position to receive the first layer of products stacked adjacent to the bottom layer of products on the second positioning plate 343. Fig.18 As shown;

[0073] In process 4, the second positioning plate 343 of the lifting assembly 340 is lowered to the bottom of the conveyor belt group 120 of the conveying mechanism 100. At this time, the multiple products stacked above the bottom product on the second positioning plate 343 are blocked and supported on the two support plates 322 of the support assembly 320, and the bottom product on the second positioning plate 343 is placed on the two conveyor belts 121 of the conveying mechanism 100. Fig.19 shown.

[0074] Reference Fig. 20 The marking device 400 includes a laser emitting assembly 410 and a lifting device 420. The laser emitting assembly 410 is installed on the lifting device 420. The laser emitting assembly 410 includes a laser emitter 411 and a CCD camera 412. The CCD camera 412 is used to take pictures and locate the product at the preset marking position so that the laser generator can perform laser coding on the product at the current preset marking position. The lifting device 420 is installed on the frame 101. The lifting device 420 is used to adjust the distance between the laser emitter 411 and the processing surface of the product.

[0075] Reference Fig.21The detection device 500 includes a fifth mounting frame 510, a barcode scanning gun 520 and a blowing assembly 530; the fifth mounting frame 510 is mounted on the frame 101 and is arranged higher than the avoidance wheel group 210; the barcode scanning gun 520 is mounted on the fifth mounting frame 510, and the barcode scanning gun 520 is used to scan and detect the product at the preset barcode scanning position; the blowing assembly 530 is mounted on the fifth mounting frame 510, and is used to blow away the residual powder on the product at the current preset barcode scanning position to prevent the residual powder from blocking part of the identification code and causing the barcode scanning gun 520 to be unable to identify.

[0076] In one embodiment, the laser marking device 10 also includes a jig 800, which has a plurality of positioning grooves 820 for carrying and positioning a plurality of products. The plurality of products are carried by the jig 800 to flow in the marking machine body, the conveying mechanism 100 and the sorting mechanism 200, so that each station can perform corresponding operations on a plurality of products in each operation, which can greatly improve the coding efficiency of the products. The jig 800 includes a jig body 810, and a plurality of positioning grooves 820 are provided on the surface of the jig body 810 and are arranged in a linear interval, so that the marking device 400 can sequentially laser code the products in each positioning groove 820, referring to Fig. 22 The jig 800 shown in the figure has four positioning grooves 820. The jig 800 in the figure is an embodiment of the jig 800 of the present invention. It can be understood that the shape and number of the positioning grooves 820 of the jig 800 are determined according to the shape and size of different products.

[0077] It can be understood that in order to stack multiple jigs 800 stably, Fig. 22 and Fig.23 The surface of the jig 800 is provided with a plurality of first positioning pins 830, and the bottom surface of the jig 800 is provided with a plurality of first positioning holes 840, wherein the first positioning pin 830 includes a support portion 831 and a step portion 832 protruding from the surface of the support portion 831, and the support portion 831 is connected to the jig body 810; when the jig 800 carrying a plurality of products is stacked on the two support plates 322 of the feeding device 300 in layers, the step portion 832 of the first positioning pin 830 of the lower jig 800 is inserted into the step portion 832 of the upper jig In the first positioning hole 840 of the jig 800, the step portion 832 and the first positioning hole 840 are clearance-matched with each other, which plays a limiting role to prevent the jig 800 from shaking due to external force. At the same time, the bottom surface of the upper jig 800 abuts against the supporting portion 831 of the first positioning pin 830 of the lower jig 800, and forms a space for the two supporting plates 322 of the feeding device 300 to be inserted and withdrawn, so that the feeding device 300 can transport multiple stacked jigs 800 to the conveying mechanism 100 one by one.

[0078] Further, in order to enable the lifting assembly 340 of the loading device 300 to smoothly transport the fixture 800 carrying multiple products from the preset material taking position to the conveying mechanism 100, refer to Fig.15 , a plurality of second positioning pins 3431 are convexly disposed on the second positioning plate 343 of the lifting assembly 340. Fig.23 , a plurality of second positioning holes 850 are correspondingly provided on the bottom surface of the jig 800. During the loading process, when the second positioning plate 343 of the lifting assembly 340 is driven by the lifting electric cylinder 342 to rise to the preset material picking position, the second positioning pin 3431 of the second positioning plate 343 is inserted into the second positioning hole 850 on the bottom surface of the jig 800. It can be understood that the first positioning plate 630 of the first lifting assembly 600 and the second lifting assembly 600a is convexly provided with a third positioning pin 631, as shown in FIG. Figure 5 As shown, the jig 800 carrying multiple products can be smoothly lifted to a preset marking position at the marking station and smoothly lifted to a preset detection position at the detection station, wherein the third positioning pin 631 has the same shape, size and position as the second positioning pin 3431.

[0079] Further, in order to enable the detection device 500 to sequentially scan and detect multiple products on the fixture 800 at the preset scanning position to improve the accuracy of the detection, refer to Fig.21 The detection device 500 is also provided with a fourth driving cylinder 540, which is mounted on the fifth mounting frame 510, and the barcode scanner 520 is mounted on the output end of the fourth driving cylinder 540. The fourth driving cylinder 540 can drive the barcode scanner 520 to move along the arrangement direction of the plurality of positioning grooves 820 of the fixture 800, so that the barcode scanner 520 scans the identification code on the product in each positioning groove 820 in turn; it can be understood that the surface of each fixture 800 is engraved with an identification code that can be used by the detection device 500 to identify the number of the fixture 800. During the barcode scanning and detection process, the barcode scanning gun 520 not only scans and detects the identification code of the product in each positioning slot 820 on the jig 800 at the preset barcode scanning position, but also scans and identifies the identification code of the jig 800 itself. When the identification code of one or more products in the jig 800 is confirmed as an unqualified identification code, the control system of the laser marking device 10 records the number corresponding to the jig 800 and the arrangement sequence of the positioning slot 820 of the product with the unqualified identification code on the jig 800 to instruct the operator to take it out.

[0080] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A laser marking device for product marking. It is characterized in that include: The marking machine body has a loading station, a marking station and a testing station. The marking machine body is used to laser code the product at the marking station and form an identification code; and scan the identification code of the product at the testing station and confirm whether the identification code is qualified; A conveying mechanism is used to convey the product from the loading station to the marking station and the testing station in sequence; and when the marking machine body confirms that the identification code of the product on the testing station is a qualified identification code, the conveying mechanism is also used to convey the product with a qualified identification code to the qualified product discharge position; and A sorting mechanism is used to sort out the products with unqualified identification codes and transmit them to the unqualified product discharge position when the marking machine body confirms that the identification code of the product on the detection station is an unqualified identification code; The marking machine body also includes a first lifting component, which is arranged below the conveying mechanism at a position corresponding to the detection station and can rise to a preset height above the conveying mechanism to lift the product located at the detection station on the conveying mechanism to a preset code scanning position. When the marking machine body confirms that the identification code of the product at the preset code scanning position is a qualified identification code, the first lifting component moves downward to drop the product with a qualified identification code back onto the conveying mechanism, so that the conveying mechanism can convey the product with a qualified identification code to a qualified product discharge position. The sorting mechanism comprises: an avoidance wheel group, a transmission wheel group and a pushing component; the avoidance wheel group is arranged at a position corresponding to the detection station, and is installed on the frame so as to be switchable between an avoidance state and a support state; when in the avoidance state, an avoidance space is formed for the first lifting component to lift and switch the product between the conveying mechanism and the preset code scanning position; when in the support state, the avoidance wheel group is used to support the product; the transmission wheel group is installed on the conveying mechanism, and is extended from the avoidance wheel group to the unqualified product discharge position, so that when the avoidance wheel group is in the support state, the avoidance wheel group is docked with the transmission wheel group; the pushing component is installed on the frame; When the detection device confirms that the identification code of the product at the preset scanning position is an unqualified identification code, the avoidance wheel group switches to the supporting state and docks with the transmission wheel group, and the first jacking component descends to place the product on the avoidance wheel group, so that the pushing component can push the product with an unqualified identification code on the avoidance wheel group to the unqualified product discharge position of the transmission wheel group; The avoidance wheel set comprises: two first mounting frames, two first driving cylinders and two movable wheel sets; the two first mounting frames are arranged opposite to each other and are mounted on the frame; the two first driving cylinders are mounted one-to-one on the two first mounting frames; the two movable wheel sets are connected one-to-one with the output ends of the two first driving cylinders; the two first driving cylinders respectively drive the corresponding movable wheel sets to move closer to each other, so that the avoidance wheel set forms the supporting state; and the two first driving cylinders respectively drive the corresponding movable wheel sets to move away from each other, so that the avoidance wheel set forms the avoidance state; The transmission wheel group includes: a second mounting frame, a fixed wheel group and a limiting plate; the second mounting frame is mounted on the conveying mechanism; the fixed wheel group is mounted on the second mounting frame, and the product can slide on the fixed wheel group under the drive of the pushing component; the limiting plate is arranged at one end of the fixed wheel group away from the avoidance wheel group to prevent the product from detaching from the fixed wheel group; The pushing assembly comprises: a third mounting frame, a second driving cylinder and a push plate; the third mounting frame is mounted on the frame; the second driving cylinder is mounted on the third mounting frame; the push plate is mounted on the output end of the second driving cylinder, and the second driving cylinder can drive the push plate to move back and forth between the avoidance wheel set and the unqualified product discharge position; When the first lifting assembly places the product with the identification code as a defective product on the avoidance wheel group, the second driving cylinder drives the push plate to move from the avoidance wheel group to the defective product discharge position to push the product with the identification code as a defective product to move to the defective product discharge position.

2. The laser marking device according to claim 1, It is characterized in that The marking machine body comprises: The frame has a loading station, a marking station and a testing station; A loading device, mounted on the frame and arranged corresponding to the position of the loading station, the loading device is used to move the product onto the conveying mechanism; A marking device, mounted on the frame and arranged above the conveying mechanism corresponding to the position of the marking station, the marking device being used to laser code the product and form an identification code when the product is at the marking station; The detection device is installed on the frame and is arranged above the conveying mechanism corresponding to the position of the detection station. The detection device is used to scan the identification code on the product when the product is at the detection station and determine whether the identification code is qualified.

3. The laser marking device according to claim 1, It is characterized in that The marking machine body further includes a first blocking device, which is arranged behind the first lifting assembly along the conveying direction of the conveying mechanism; The first blocking device can be raised and lowered and switched between a first initial position and a first blocking position. When the conveying mechanism conveys the product to the inspection station, the first blocking device rises and switches to the first blocking position to block the product above the first lifting component, so that the first lifting component can lift the product to the preset code scanning position.

4. The laser marking device according to claim 2, It is characterized in that The feeding device comprises: A fourth mounting frame is mounted on the frame corresponding to the position of the loading station; A support assembly is installed on the fourth mounting frame and is located above the conveying mechanism, and is used for stacking products in layers; the support assembly can be movably switched between a supporting position and a releasing position; when the support assembly is in the supporting position, it is used to support the product, and when it is in the releasing position, it releases the support for the product; A positioning assembly, mounted on the fourth mounting frame, for positioning the products stacked on the support assembly and allowing the products to slide downward in a vertical direction when the support assembly is in the release position; A lifting assembly is mounted on the frame and is located below the conveying mechanism corresponding to the position of the supporting assembly. The lifting assembly can rise to a preset height above the conveying mechanism to receive the product released by the supporting assembly at a preset material taking position; The supporting assembly cooperates with the lifting assembly to transport the products stacked in layers on the supporting assembly to the conveying mechanism one by one in sequence.

5. The laser marking device according to claim 1, It is characterized in that The laser marking device also includes a jig having a plurality of positioning grooves for carrying and positioning a plurality of products. The plurality of products are carried by the jig to flow correspondingly in the marking machine body, the conveying mechanism and the sorting mechanism.

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