Automatic glass laser marking equipment and control method thereof

Abstract

The invention discloses automatic glass laser marking equipment and a control method thereof.The automatic glass laser marking equipment comprises a bottom frame, a laser, a lifting conveying mechanism, a first positioning assembly, a second positioning assembly and a controller, a bearing platform is arranged on the bottom frame, and the first positioning assembly comprises a first baffle and a second baffle; the first baffle and / or the second baffle can push the glass in the left-right direction till the microswitches on the first baffle and the second baffle make contact with the glass, and the second positioning assembly comprises a third baffle and a fourth baffle. The third baffle and the fourth baffle can move oppositely in the front-back direction and push the glass till the microswitches on the third baffle and the fourth baffle make contact with the glass. According to the invention, accurate positioning and laser marking can be carried out on glass of different sizes, the compatibility is high, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass manufacturing, in particular to a glass automatic laser marking device and a control method thereof. BACKGROUND

[0002] At present, in the market, in order to adapt to different product and space requirements, the size of the glass is not the same, in addition, for different brands of products, different trademarks need to be silk-screened on the glass. The current laser marking device can usually only be positioned and laser marked for fixed size glass, which is difficult to meet the needs of customized products. For customized products of different sizes, manual operation is required, which not only has low production efficiency, but also has unstable silk-screen product qualification rate, and the trademark position is prone to deviation, or the trademark is misprinted or the trademark is missed, resulting in defective products. SUMMARY

[0003] The present application aims to at least solve one of the above technical problems in the related art. To this end, the present application provides a glass automatic laser marking device.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0005] The present application also provides a control method based on the above-mentioned glass automatic laser marking device.

[0006] The glass automatic laser marking device according to the first aspect of the present application comprises:

[0007] A chassis is provided with a carrying platform for carrying glass;

[0008] A laser is provided above the carrying platform;

[0009] A lifting and conveying mechanism is used to convey the glass to the carrying platform and lift the glass on the carrying platform upward and then output it outward;

[0010] A first positioning assembly comprises a first driving mechanism and first and second baffles respectively provided on the left and right sides of the carrying platform, the first and second baffles are each provided with a micro switch, the first and / or second baffles can push the glass in the left and right directions under the drive of the first driving mechanism until the micro switches on the first and second baffles contact the glass, the relative distance between the laser and the first baffle in the left and right directions is constant, or the relative distance between the laser and the second baffle in the left and right directions is constant;

[0011] A second positioning assembly includes a second driving mechanism, and a third baffle and a fourth baffle respectively arranged at the front and rear ends of the bearing platform, and micro switches are arranged on the third baffle and the fourth baffle, and the third baffle and the fourth baffle can move towards each other along the front-rear direction under the driving of the second driving mechanism and push the glass until the micro switches on the third baffle and the fourth baffle contact the glass, and in the front-rear direction, the distance from the third baffle to the laser is equal to the distance from the fourth baffle to the laser;

[0012] A controller is electrically connected with the first driving mechanism, the second driving mechanism and all the micro switches, and the controller is configured to control the second driving mechanism to stop when receiving a signal that the micro switches of the third baffle and the fourth baffle are triggered at the same time, and control the first driving mechanism to stop when receiving a signal that the micro switches of the first baffle and the second baffle are triggered at the same time.

[0013] The glass automatic laser marking device according to the first aspect of the present application has at least the following beneficial effects:

[0014] The present application can accurately position and laser mark glasses of different sizes. When the device is on standby, the third baffle and the fourth baffle are in the maximum open position (away from the center of the bearing platform), leaving space for glass loading, and the lifting and transporting mechanism transports the glass from the front conveying line to the bearing platform, at which time the glass is located between the third baffle and the fourth baffle, the second driving mechanism drives the third baffle and the fourth baffle to move towards each other, and the two baffles are symmetrically closed until the micro switches on the two baffles contact the front and rear edges of the glass respectively, and the second driving mechanism stops running, at which time the laser is located at the center of the two baffles due to the symmetric movement distance of the two baffles, so that the center of the glass in the front-rear direction is opposite to the laser, realizing the center positioning in the front-rear direction; then the first driving mechanism drives the first baffle and / or the second baffle to move, and after the micro switches on the first baffle and the second baffle contact the glass, the first driving mechanism stops running, at which time the glass completes the positioning in the left-right direction; the laser marks the positioned glass, and after the laser marking of the glass is completed, the lifting and transporting mechanism lifts the glass on the bearing platform upwards and outputs to the rear conveying line. Since the distance between the laser and the first baffle (or the second baffle) in the left-right direction is fixed, the distance from the trademark to the left edge (or the right edge) of the glass is the same regardless of the size of the glass, and the trademark is also located at the center of the glass in the front-rear direction, so that different sizes of glass can be accurately positioned, and the compatibility is high and the application range is wide.

[0015] According to some embodiments of the present application, a gantry is arranged above the carrying platform along the left-right direction, the first driving mechanism is installed on the gantry, the first lifting mechanism is connected with the first driving mechanism, the first baffle and the laser are installed on the first lifting mechanism, and the second baffle is fixed on the carrying platform.

[0016] According to some embodiments of the present application, a second lifting mechanism is installed on the gantry, the laser has two, a first laser is installed on the first lifting mechanism and fixed opposite to the first baffle, and a second laser is installed on the second lifting mechanism and fixed with the second baffle in the left-right direction.

[0017] According to some embodiments of the present application, the carrying platform is composed of a plurality of carrying rods arranged in the same horizontal plane and in the length direction of the carrying rods along the front-back direction, the lifting transportation mechanism includes a plurality of conveying belts and a third lifting mechanism for driving the conveying belts to move up and down, the conveying belts are parallel to the carrying rods and arranged alternately with the carrying rods in the left-right direction, the conveying belts move upward to lift the glass to separate the glass from the carrying rods, and the conveying belts move downward to place the glass on the carrying rods.

[0018] According to some embodiments of the present application, a plurality of universal bull's eye wheels are arranged on the carrying rods.

[0019] According to some embodiments of the present application, the second driving mechanism is a linear module, the linear module includes a linear module body, a first mover sliding seat and a second mover sliding seat, the linear module body is arranged in the front-back direction and fixed on the chassis, the linear module body is located below the carrying rods, the first mover sliding seat and the second mover sliding seat are respectively located at the front end and the rear end of the linear module body, the linear module body can drive the first mover sliding seat and the second mover sliding seat to move towards each other, the third baffle is connected with the first mover sliding seat, and the fourth baffle is connected with the second mover sliding seat.

[0020] According to some embodiments of the present application, the lifting transportation mechanism further includes a connecting support, a plurality of conveying belts are connected into a whole through the connecting support, and the third lifting mechanism connects the connecting support and the chassis.

[0021] According to some embodiments of the present application, the left and right sides of the third baffle and the left and right sides of the fourth baffle are provided with rollers, when the microswitches on the third baffle and the fourth baffle contact the glass, the rollers also rollingly contact the glass.

[0022] According to some embodiments of the present application, the glass automatic laser marking device further comprises a first conveying line, a second conveying line and a centering mechanism, the first conveying line is located in front of the bearing platform, the second conveying line is located behind the bearing platform, the centering mechanism comprises two push rods, the two push rods are respectively arranged on the left side and the right side of the second conveying line, and the push rods can push the glass in the left-right direction to center the glass.

[0023] According to the control method of the second aspect of the present application, the glass automatic laser marking device further comprises a code scanning mechanism and an MES system, the code scanning mechanism is arranged in front of the laser, the code scanning mechanism is used for scanning the label on the glass, the controller is in communication connection with the laser and the code scanning mechanism, and the control method comprises the following steps:

[0024] The code scanning mechanism sends the scanning result obtained by scanning the label on the glass to the MES system, the MES system acquires the production information of the current glass according to the scanning result, and communicates and sends the production information to the controller, and the production information at least comprises an identification pattern to be silk-screened;

[0025] After the controller receives the production information, the first driving mechanism and the second driving mechanism are controlled to be started, when the controller receives a signal that the microswitches of the third baffle and the fourth baffle are triggered at the same time, the second driving mechanism is controlled to be stopped, and when the controller receives a signal that the microswitches of the first baffle and the second baffle are triggered at the same time, the first driving mechanism is controlled to be stopped;

[0026] When the first driving mechanism and the second driving mechanism are stopped, the controller communicates and sends an instruction to the laser, and the laser selects a corresponding identification pattern for laser printing according to the production information.

[0027] According to the control method of the second aspect of the present application, at least has the following beneficial effects:

[0028] 1、Glass in the steel before all need silk-screen company trademark, for the volume of larger company, trademark type will be more, production needs artificial scanning glass on the two-dimensional code, according to the scanning result in the glass corresponding position silk-screen various trademarks, manual cost is high. The present application automatically scans and identifies the glass label information through the code scanning mechanism, the label information includes glass size, required laser printing trademark and C certification identification information, automatically laser prints the corresponding trademark after accurate positioning of the glass according to the code scanning result, realizes full-automatic marking operation, eliminates the occurrence of trademark printing error and missing trademark, reduces the configuration of operating personnel, and reduces cost and increases efficiency.

[0029] 2. The glass label information includes the glass size. The positioning component is equipped with a micro switch. When the left and right edges / front and back edges of the glass simultaneously contact the micro switch, the positioning is complete. The positioning component is stopped by controlling the micro switch. At this time, the actual size of the glass can be calculated based on the movement data of the baffle. The actual size is compared with the size on the label to realize the function of re-inspecting the glass size and reduce the outflow of defective products.

[0030] According to some embodiments of the present invention, the automatic laser marking equipment for glass further includes an alarm device electrically connected to the controller. The production information also includes the customized width and customized length dimensions of the glass. The controller calculates the movement data of the third and fourth baffles from their origin to their destination to obtain the current actual width dimension of the glass, and compares the actual width dimension with the customized width dimension. If the difference exceeds a preset error value, the controller controls the alarm device to issue an alarm signal. The controller calculates the movement data of the first and / or second baffles from their origin to their destination to obtain the current actual length dimension of the glass, and compares the actual length dimension with the customized length dimension. If the difference exceeds a preset error value, the controller controls the alarm device to issue an alarm signal.

[0031] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0033] Figure 1 This is a schematic diagram of the overall structure of the automatic laser marking equipment for glass of the present invention;

[0034] Figure 2 This is an assembly drawing of the gantry frame and the load-bearing platform of the present invention;

[0035] Figure 3 This is a top view of the gantry and support platform of the present invention;

[0036] Figure 4 This is a schematic diagram of the gantry frame structure of the present invention;

[0037] Figure 5 This is a partial structural diagram of the second positioning component of the present invention;

[0038] Figure 6 This is an assembly drawing of the base frame and lifting and transporting mechanism of the present invention.

[0039] Labels: chassis 100, bearing platform 110, bearing rod 111, universal bull's eye wheel 112, laser 200, code scanning mechanism 300, lifting transportation mechanism 400, conveyor belt 410, third lifting mechanism 420, connecting bracket 430, first baffle 510, first driving mechanism 511, second baffle 520, microswitch 600, third baffle 710, fourth baffle 720, linear module body 731, first mover sliding seat 732, second mover sliding seat 733, roller 740, gantry 800, first lifting mechanism 900, second lifting mechanism 1000, push rod 1100, storage table 1200, tempered front buffer table 1300, first conveying line 1400, second conveying line 1500. DETAILED DESCRIPTION

[0040] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0041] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0042] Reference Figures 1-6 A kind of glass automatic laser marking equipment, comprising:

[0043] Chassis 100, the chassis 100 is welded with square tube, and the bearing platform 110 for carrying glass is provided on the chassis 100;

[0044] Laser 200 is arranged above the bearing platform 110;

[0045] Lifting transportation mechanism 400 is used to transport glass to the bearing platform 110 and lift the glass on the bearing platform 110 upward and then output outward;

[0046] The first positioning assembly comprises a first driving mechanism 511 and first and second baffles 510 and 520 respectively arranged on the left and right sides of the bearing platform 110. The first and second baffles 510 and 520 are respectively provided with micro switches 600. The first and / or second baffles 510 and 520 are driven by the first driving mechanism 511 to push the glass in the left-right direction until the micro switches 600 on the first and second baffles 510 and 520 are in contact with the glass. The relative distance between the laser 200 and the first baffle 510 or the relative distance between the laser 200 and the second baffle 520 in the left-right direction is constant. Specifically, the positional relationship between the first baffle 510 (or the second baffle 520) and the laser 200 includes but is not limited to the following: (1) the first baffle 510 (or the second baffle 520) is fixedly installed opposite to the laser 200 and is driven by the first driving mechanism 511; (2) the first baffle 510 (or the second baffle 520) and the laser 200 are synchronously driven by the first driving mechanism 511, and the laser 200 can independently move up and down; (3) the first baffle 510 (or the second baffle 520) is fixedly installed on the chassis 100, and the second baffle 520 (or the first baffle 510) moves in the left-right direction, and the laser 200 can only move up and down but cannot move left and right. The relative distance between the laser 200 and the first baffle 510 or the second baffle 520 in the left-right direction is constant, which ensures that the distance between the position of the printed trademark on the glass and the side edge of the glass is the same for different sizes of glass.

[0047] The second positioning assembly comprises a second driving mechanism and third and fourth baffles 710 and 720 respectively arranged at the front and rear ends of the bearing platform 110. The third and fourth baffles 710 and 720 are respectively provided with micro switches 600. The third and fourth baffles 710 and 720 are driven by the second driving mechanism to move towards each other in the front-rear direction and push the glass until the micro switches 600 on the third and fourth baffles 710 and 720 are in contact with the glass. In the front-rear direction, the distance from the third baffle 710 to the laser 200 is equal to the distance from the fourth baffle 720 to the laser 200.

[0048] The controller is electrically connected with the first driving mechanism 511, the second driving mechanism and all the micro switches 600. When the controller receives a signal that the micro switches 600 of the third and fourth baffles 710 and 720 are triggered at the same time, the controller controls the second driving mechanism to stop. When the controller receives a signal that the micro switches 600 of the first and second baffles 510 and 520 are triggered at the same time, the controller controls the first driving mechanism 511 to stop.

[0049] Working principle: when the device is in standby, the third baffle 710 and the fourth baffle 720 are in the maximum open position (away from the center of the bearing platform 110), leaving space for glass feeding, the lifting transport mechanism 400 transports the glass from the front conveying line to the bearing platform 110, at this time the glass is located between the third baffle 710 and the fourth baffle 720, the second driving mechanism drives the third baffle 710 and the fourth baffle 720 to move towards each other, the two baffles are symmetrically closed until the microswitches 600 on the two baffles respectively contact the front and rear edges of the glass, the second driving mechanism stops running, at this time the laser 200 is located in the center position of the two baffles due to the symmetric movement distance of the two baffles, so that the center of the glass in the front-rear direction is opposite to the laser 200, realizing the center positioning in the front-rear direction; then the first driving mechanism 511 drives the first baffle 510 and / or the second baffle 520 to move, after the microswitches 600 on the first baffle 510 and the second baffle 520 are both in contact with the glass, the first driving mechanism 511 stops running, at this time the glass completes the positioning work in the left-right direction; the laser 200 performs laser marking on the positioned glass, after the laser marking on the glass is completed, the lifting transport mechanism 400 lifts the glass on the bearing platform 110 upwards and then outputs to the rear conveying line. In the present application, the starting order of the first driving mechanism and the second driving mechanism is not limited, the second driving mechanism can be started first to perform the center positioning in the front-rear direction, then the first driving mechanism is started to perform the positioning in the left-right direction, or the first driving mechanism can be started first and then the second driving mechanism is started.

[0050] In some embodiments of the present application, a gantry 800 and a first lifting mechanism 900 are further included, the gantry 800 is erected above the bearing platform 110 in the left-right direction, the first driving mechanism 511 is installed on the gantry 800, the first lifting mechanism 900 is connected with the first driving mechanism 511, the first baffle 510 and the laser 200 are installed on the first lifting mechanism 900, and the second baffle 520 is fixedly arranged on the bearing platform 110. The first driving mechanism 511 is a lead screw mechanism, the lead screw is arranged in the left-right direction, and the first lifting mechanism 900 is installed on the nut of the lead screw mechanism, so that the nut moving along the lead screw can drive the first lifting mechanism 900 to move left and right, and then drive the first baffle 510 to move left and right. The gantry 800 is welded by square tubes, the height of the laser 200 can be adjusted by the first lifting mechanism 900 according to different thicknesses of the glass, so as to facilitate the marking on the glass. On the first lifting mechanism 900, the relative position of the first baffle 510 and the laser 200 is fixed, so that the same position of the trademark (i.e. the distance between the trademark and the side edge of the glass is the same) can be printed on the glass of different sizes. In this embodiment, the single baffle pushes the glass, the second baffle 520 is fixed, and the first baffle 510 moves towards the second baffle 520 to position the glass.

[0051] In some embodiments of the present application, a second lifting mechanism 1000 is further included, the second lifting mechanism 1000 is installed on the gantry 800, the laser 200 has two, a first laser 200 is installed on the first lifting mechanism 900, the first laser 200 is fixed opposite to the first baffle 510, and a second laser 200 is installed on the second lifting mechanism 1000, and the distance between the second laser 200 and the second baffle 520 in the left-right direction is fixed. When the two ends of the glass need to be silk-screen printed with trademarks, two lasers 200 are arranged, the first laser 200 is close to the first baffle 510, and the second laser 200 is close to the second baffle 520, so that the two ends of the glass can be simultaneously laser marked.

[0052] In some embodiments of the present application, the bearing platform 110 is composed of a plurality of bearing rods 111, the plurality of bearing rods 111 are arranged at intervals in the same horizontal plane, the length direction of the bearing rod 111 is arranged in the front-rear direction, the lifting conveying mechanism 400 includes a plurality of conveying belts 410 and a third lifting mechanism 420 for driving the conveying belts 410 to move up and down, the conveying belt 410 is parallel to the bearing rod 111, the conveying belt 410 and the bearing rod 111 are alternately arranged in the left-right direction, the upward movement of the conveying belt 410 can lift the glass to separate it from the bearing rod 111, and the downward movement of the conveying belt 410 can place the glass on the bearing rod 111. The third baffle 710 and the fourth baffle 720 are located between two adjacent bearing rods 111, and the top of the third baffle 710 and the fourth baffle 720 is higher than the bearing rod 111. The third lifting mechanism 420 is a pneumatic cylinder, the third lifting mechanism 420 drives the conveying belt 410 to descend, so that the glass descends to the bearing rod 111 and positioning operation is performed. The bearing rods 111 are arranged at intervals, the third baffle 710 and the fourth baffle 720 move in the space between the two bearing rods 111, so that the bearing rod 111 does not hinder the pushing and positioning of the glass by the positioning assembly. The conveying belt 410 and the bearing rod 111 are alternately arranged in the left-right direction, which improves the contact range of the glass and the conveying belt 410, ensures that the glass is uniformly stressed at each part, and improves the stability of glass transportation. When the third lifting mechanism 420 is jacked up, the surface of the conveying belt 410 is higher than the top of the third baffle 710 and the fourth baffle 720, so that the third baffle 710 and the fourth baffle 720 do not hinder the glass conveying.

[0053] In some embodiments of the present application, the bearing rod 111 is provided with a plurality of universal bull's eye wheels 112. The universal bull's eye wheels 112 can rotate freely in all directions, and can reduce the friction between the glass and the bearing rod 111 when the glass is pushed by the positioning assembly, making the glass easier to move and helping to improve the accuracy and efficiency of positioning. Compared with the glass directly contacting the surface of the bearing rod 111, the contact area of the universal bull's eye wheels 112 with the glass is smaller, and the rolling friction replaces the sliding friction, further reducing the wear on the surface of the glass, effectively protecting the surface of the glass from being scratched, and being particularly suitable for glass with high requirements for surface quality.

[0054] In some embodiments of the present application, the second driving mechanism is a linear module, which includes a linear module body 731, a first mover sliding seat 732 and a second mover sliding seat 733. The linear module body 731 is arranged in the front-rear direction and fixed on the chassis 100, and is located below the bearing rod 111. The first mover sliding seat 732 and the second mover sliding seat 733 are respectively located at the front end and the rear end of the linear module body 731. The linear module body 731 can drive the first mover sliding seat 732 and the second mover sliding seat 733 to move towards each other. The third baffle 710 is connected with the first mover sliding seat 732, and the fourth baffle 720 is connected with the second mover sliding seat 733. The linear module body 731 is arranged in the front-rear direction, which can provide a smooth linear motion track for the first mover sliding seat 732 and the second mover sliding seat 733. This makes the third baffle 710 and the fourth baffle 720 move smoothly when pushing the glass, and avoids the situation of shaking or jamming, thereby avoiding the deviation of the glass position caused by unstable movement.

[0055] In some embodiments of the present application, the lifting and conveying mechanism 400 further includes a connecting bracket 430, and the plurality of conveying belts 410 are connected into a whole through the connecting bracket 430. The third lifting mechanism 420 connects the connecting bracket 430 and the chassis 100. The connecting bracket 430 is welded with square tubes, and connects the plurality of conveying belts 410 into a whole, so that the dispersed conveying belts 410 form a unified conveying platform. This design ensures that all the conveying belts 410 keep synchronous during lifting movement, and avoids the glass tilting, deviating or jamming caused by independent movement of the conveying belts 410.

[0056] In some embodiments of the present application, the left and right sides of the third baffle 710 and the left and right sides of the fourth baffle 720 are provided with rollers 740, which are in rolling contact with the glass at the same time when the microswitches 600 on the third baffle 710 and the fourth baffle 720 contact the glass. Since the device first performs front and rear centering positioning, and then performs left and right positioning, the edges of the glass will rub against the third baffle 710 and the fourth baffle 720 when the glass moves in the left and right directions. By adding rollers 740 to the left and right sides of the third baffle 710 and the fourth baffle 720, the glass edges are in point contact, the sliding friction is changed to rolling friction, the resistance of the glass movement is reduced, and scratches caused by friction are also avoided.

[0057] In some embodiments of the present application, the first conveying line 1400, the second conveying line 1500 and the centering mechanism are further included. The first conveying line 1400 is located in front of the bearing platform 110, and the second conveying line 1500 is located behind the bearing platform 110. The centering mechanism includes two push rods 1100, which are respectively arranged on the left side and the right side of the second conveying line 1500. The push rod 1100 can push the glass in the left and right directions to center the glass. The first conveying line 1400 serves as an "upstream" transmission unit of the bearing platform 110, and is responsible for conveying the glass to be processed from the storage table 1200 to the core processing area (the bearing platform 110) of the device, realizing continuous production. The second conveying line 1500 serves as a "downstream" transmission unit of the bearing platform 110, and conveys the processed glass output by the lifting transportation mechanism 400 to the pre-strengthening buffer table 1300, so that the glass can be centered in the left and right directions by the simple centering mechanism before entering the pre-strengthening buffer table 1300, facilitating the glass to enter the pre-strengthening buffer table 1300.

[0058] A control method of a glass automatic laser marking device, the glass automatic laser marking device further comprising a code scanning mechanism 300 and an MES system, the code scanning mechanism 300 being arranged in front of the laser 200, the code scanning mechanism 300 being used for scanning a label on the glass, the controller being in communication connection with the laser 200 and the code scanning mechanism 300, and the control method comprising the following steps:

[0059] The code scanning mechanism 300 sends the scanning result obtained by scanning the label on the glass to the MES system, the MES system acquires the production information of the current glass according to the scanning result, and communicates the production information to the controller, the production information at least including an identification pattern to be silk-screened;

[0060] After the controller receives the production information, the controller controls the first driving mechanism 511 and the second driving mechanism to start, and controls the second driving mechanism to stop after the controller receives a signal that the microswitch 600 of the third baffle 710 and the fourth baffle 720 is triggered at the same time, and controls the first driving mechanism 511 to stop after the controller receives a signal that the microswitch 600 of the first baffle 510 and the second baffle 520 is triggered at the same time.

[0061] After the first driving mechanism and the second driving mechanism stop, the controller communicates a command to the laser 200, and the laser 200 performs laser printing according to the production information to select a corresponding identification pattern.

[0062] In some embodiments of the present application, the automatic laser marking device for glass further comprises an alarm device, the alarm device is electrically connected with the controller, and the production information further comprises a customized width size and a customized length size of the glass; the controller obtains an actual width size of the current glass by calculating movement data of the third baffle 710 and the fourth baffle 720 from the origin position to the end position, and compares the actual width size with the customized width size, and if the size difference exceeds a preset error value (for example, the size difference exceeds ±1mm), the controller controls the alarm device to send an alarm signal; the controller obtains an actual length size of the current glass by calculating movement data of the first baffle 510 and / or the second baffle 520 from the origin position to the end position, and compares the actual length size with the customized length size, and if the size difference exceeds a preset error value (for example, the size difference exceeds ±1mm), the controller controls the alarm device to send an alarm signal. It should be noted that the "actual width size" and the "actual length size" are only simplified descriptions for the convenience of describing the present application, and do not indicate or imply that the length in the front-rear direction of the glass is necessarily smaller than the length in the left-right direction. The second positioning assembly of the present application can be used for center positioning in the width direction of the glass, and can also be used for center positioning in the length direction of the glass, and the specific positioning direction is determined according to the position of the trademark to be silk-screen printed on the glass.

[0063] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An automatic laser marking device for glass, characterized in that, include: A base frame (100) is provided with a support platform (110) for supporting glass; A laser (200) is positioned above the support platform (110); The lifting and transport mechanism (400) is used to transport glass to the carrying platform (110) and to lift the glass on the carrying platform (110) upward and output it outward; The first positioning component includes a first driving mechanism (511) and a first baffle (510) and a second baffle (520) respectively disposed on the left and right sides of the bearing platform (110). The first baffle (510) and the second baffle (520) are each provided with a micro switch (600). Under the drive of the first driving mechanism (511), the first baffle (510) and / or the second baffle (520) can push the glass in the left and right direction until the micro switches (600) on the first baffle (510) and the second baffle (520) both contact the glass. The relative distance between the laser (200) and the first baffle (510) in the left and right direction remains unchanged, or the relative distance between the laser (200) and the second baffle (520) in the left and right direction remains unchanged. The second positioning component includes a second driving mechanism and a third baffle (710) and a fourth baffle (720) respectively disposed at the front and rear ends of the bearing platform (110). Both the third baffle (710) and the fourth baffle (720) are provided with micro switches (600). Under the drive of the second driving mechanism, the third baffle (710) and the fourth baffle (720) can move towards each other in the front-rear direction and push the glass until the micro switches (600) on the third baffle (710) and the fourth baffle (720) contact the glass. In the front-rear direction, the distance from the third baffle (710) to the laser (200) is equal to the distance from the fourth baffle (720) to the laser (200). The controller is electrically connected to the first drive mechanism (511), the second drive mechanism, and all micro switches (600). The controller is configured to: control the second drive mechanism to stop after receiving a signal that the micro switches (600) of the third baffle (710) and the fourth baffle (720) are triggered simultaneously; and control the first drive mechanism (511) to stop after receiving a signal that the micro switches (600) of the first baffle (510) and the second baffle (520) are triggered simultaneously.

2. The automatic laser marking equipment for glass according to claim 1, characterized in that, It also includes a gantry (800) and a first lifting mechanism (900). The gantry (800) is erected above the bearing platform (110) in the left-right direction. The first drive mechanism (511) is installed on the gantry (800). The first lifting mechanism (900) is connected to the first drive mechanism (511). The first baffle (510) and the laser (200) are installed on the first lifting mechanism (900). The second baffle (520) is fixed on the bearing platform (110).

3. The automatic laser marking equipment for glass according to claim 2, characterized in that, It also includes a second lifting mechanism (1000), which is installed on the gantry (800). There are two lasers (200). The first laser (200) is installed on the first lifting mechanism (900) and is fixed relative to the first baffle (510). The second laser (200) is installed on the second lifting mechanism (1000) and the distance between the second laser (200) and the second baffle (520) in the left-right direction is fixed.

4. The automatic laser marking equipment for glass according to claim 1, characterized in that, The carrying platform (110) is composed of several carrying rods (111), which are spaced apart on the same horizontal plane. The length direction of the carrying rods (111) is arranged along the front-to-back direction. The lifting and transporting mechanism (400) includes several conveyor belts (410) and a third lifting mechanism (420) for driving the conveyor belts (410) to move up and down. The conveyor belts (410) are parallel to the carrying rods (111), and the conveyor belts (410) and the carrying rods (111) are arranged alternately in the left-to-right direction. When the conveyor belts (410) move upward, they can lift the glass so that it is detached from the carrying rods (111). When the conveyor belts (410) move downward, they can place the glass on the carrying rods (111).

5. The automatic laser marking equipment for glass according to claim 4, characterized in that, The support rod (111) is provided with a number of universal bullseye wheels (112).

6. The automatic laser marking equipment for glass according to claim 4, characterized in that, The second driving mechanism is a linear module, which includes a linear module body (731), a first moving slide (732), and a second moving slide (733). The linear module body (731) is arranged along the front-rear direction and fixed on the base frame (100). The linear module body (731) is located below the bearing rod (111). The first moving slide (732) and the second moving slide (733) are located at the front end and rear end of the linear module body (731), respectively. The linear module body (731) can drive the first moving slide (732) and the second moving slide (733) to move towards each other. The third baffle (710) is connected to the first moving slide (732), and the fourth baffle (720) is connected to the second moving slide (733).

7. The automatic laser marking equipment for glass according to claim 4, characterized in that, The lifting and transporting mechanism (400) also includes a connecting bracket (430), and several conveyor belts (410) are connected into a whole through the connecting bracket (430). The third lifting mechanism (420) connects the connecting bracket (430) and the base frame (100).

8. The automatic laser marking equipment for glass according to claim 1, characterized in that, Rollers (740) are provided on both the left and right sides of the third baffle (710) and the left and right sides of the fourth baffle (720). When the micro switch (600) on the third baffle (710) and the fourth baffle (720) comes into contact with the glass, the rollers (740) also roll into contact with the glass.

9. The control method for the automatic laser marking equipment for glass as described in any one of claims 1-8, characterized in that, The automatic laser marking equipment for glass also includes a barcode scanning mechanism (300) and an MES system. The barcode scanning mechanism (300) is located in front of the laser (200) and is used to scan labels on the glass. The controller is communicatively connected to the laser (200) and the barcode scanning mechanism (300). The control method includes the following steps: The scanning mechanism (300) sends the scanning result obtained by scanning the label on the glass to the MES system. The MES system obtains the current glass production information based on the scanning result and sends the production information to the controller. The production information includes at least the identification pattern to be screen-printed. After receiving the production information, the controller controls the first drive mechanism (511) and the second drive mechanism to start. When the controller receives a signal that the micro switches (600) of the third baffle (710) and the fourth baffle (720) are triggered simultaneously, it controls the second drive mechanism to stop. When the controller receives a signal that the micro switches (600) of the first baffle (510) and the second baffle (520) are triggered simultaneously, it controls the first drive mechanism (511) to stop. When the first drive mechanism and the second drive mechanism stop, the controller sends a communication command to the laser (200), and the laser (200) selects the corresponding logo pattern for laser printing according to the production information.

10. The control method according to claim 9, characterized in that, The automatic laser marking equipment for glass also includes an alarm device, which is electrically connected to the controller. The production information also includes the customized width and customized length of the glass. The controller calculates the movement data of the third baffle (710) and the fourth baffle (720) from the origin to the destination to obtain the actual width of the glass and compares the actual width with the customized width. If the difference exceeds a preset error value, the controller controls the alarm device to issue an alarm signal. The controller calculates the movement data of the first baffle (510) and / or the second baffle (520) from the origin to the destination to obtain the actual length of the glass and compares the actual length with the customized length. If the difference exceeds a preset error value, the controller controls the alarm device to issue an alarm signal.

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