Laser engraving machine

Abstract

The utility model belongs to the technical field of laser code engraving, and particularly relates to a laser engraving machine. The laser engraving machine comprises a control unit, a storage unit, a detection unit, an engraving unit and a conveying unit, the control unit is in signal connection with the storage unit, the detection unit and the engraving unit, the storage unit is used for storing a two-dimensional code, and the conveying unit conveys a workpiece to the engraving unit. The carving unit carves the two-dimensional code on the workpiece according to the pre-carved two-dimensional code stored in the storage unit, the conveying unit conveys the workpiece carved with the two-dimensional code to the detection unit for detection, and the detection unit obtains the two-dimensional code on the carved workpiece and compares the two-dimensional code with the two-dimensional code in the storage unit. The two working procedures of two-dimensional code manufacturing and subsequent detection are integrated through the conveying unit, and the overall efficiency and automation of manufacturing and detection can be improved. Whether the workpieces meet the standard or not is screened through the detection procedure, and the bit error rate and the rejection rate are further reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser code engraving, and in particular relates to a laser engraving machine. Background Art

[0002] With the rapid development of information technology, QR codes have been widely used in various fields as an efficient and convenient way of information storage and transmission. As a high-precision and high-efficiency processing technology, laser coding technology, combined with QR codes, provides a new solution for the production and application of QR codes. As the name suggests, QR code laser coding technology is a technology that uses a laser beam to etch the surface of an object to form a QR code pattern. This technology has the characteristics of high precision, high efficiency, and high reliability, and can produce clear and durable QR code logos on the surface of a variety of materials. In terms of technical principles, QR code laser coding technology uses a high-energy laser beam to heat and oxidize the material, and achieves etching on the surface of the object by precisely controlling the displacement and energy density of the laser beam. Compared with traditional printing, inkjet printing and other identification production methods, laser coding technology has higher accuracy and resolution, and can meet the needs of various high-precision identification production. In terms of application fields, QR code laser coding technology has been widely used in manufacturing, logistics, medical devices and other fields. For example, in the manufacturing industry, laser coding technology can achieve accurate identification and traceability of product parts, improve production efficiency and product quality; in the logistics industry, laser coding technology can achieve rapid identification and transmission of cargo information, improve logistics efficiency; in the field of medical devices, laser coding technology can produce high-precision, wear-resistant labels, and improve the safety and reliability of medical supplies. If the laser coding machine is used directly after coding the workpiece, the QR code still has a certain error rate and rejection rate, so it is necessary to further reduce the error rate and rejection rate. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a laser engraving machine on one hand, which includes a control unit, a storage unit, a detection unit, an engraving unit and a conveying unit, wherein the control unit is respectively connected to the storage unit, the detection unit and the engraving unit by signal, the storage unit is used to store a two-dimensional code, the conveying unit conveys a workpiece to the engraving unit, the engraving unit engraves a two-dimensional code on the workpiece according to the pre-engraved two-dimensional code stored in the storage unit, the conveying unit then conveys the workpiece engraved with the two-dimensional code to the detection unit for detection, the detection unit obtains the two-dimensional code on the workpiece after engraving and compares it with the two-dimensional code in the storage unit.

[0004] Preferably, the laser engraving machine further comprises a driving connection seat, the detection unit and the engraving unit are mounted on the driving connection seat, the driving connection seat is used to connect with a driving mechanism, and the driving connection seat drives the detection unit and the engraving unit to approach or move away from the workpiece.

[0005] Preferably, the drive connection seat is also provided with a mounting hole, and the mounting hole is used for mounting the drive mechanism.

[0006] Preferably, the storage unit is used to store the two-dimensional code information and the picture information, the detection unit is an industrial camera, and the detection unit is used to obtain the two-dimensional code information and the picture information on the workpiece after engraving.

[0007] Preferably, the engraving unit comprises a laser, and the laser is a galvanometer laser welding device. The laser engraving machine also comprises a drive connection seat, and the laser and the industrial camera are both mounted on the drive connection seat.

[0008] Preferably, the laser engraving machine includes a working platform, which is located below the detection unit and the engraving unit. The working platform also forms an engraving area and a detection area corresponding to the detection unit and the engraving unit. The conveying unit conveys the workpiece to the engraving area and the detection area in turn. The engraving unit also includes a laser and a protective cover, one end of the protective cover is mounted on the laser emitting end of the laser, and the other end of the protective cover extends toward the engraving area.

[0009] Preferably, a connecting ring is sleeved on the outer periphery of the laser emitting end of the laser, and the connecting ring and the protective sleeve are connected by threads.

[0010] Preferably, the laser engraving machine further comprises an alarm unit, which is connected to the control unit by signal. When the detection unit obtains a two-dimensional code which is not stored in the storage unit, the alarm unit issues an audible and / or optical alarm.

[0011] Beneficial effects of the utility model:

[0012] The detection unit screens the workpieces to reduce the error rate and rejection rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and other purposes, features and advantages of the present invention will become clearer through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts in all the accompanying drawings, and the accompanying drawings are not deliberately scaled to the actual size, but the focus is on illustrating the main purpose of the present invention.

[0014] Figure 1 This is an implementation mode of the present utility model.

[0015] Figure 2A structural diagram provided for an embodiment of the utility model.

[0016] Figure 3 Another structural diagram provided for an embodiment of the utility model.

[0017] Figure symbols: control unit 101, storage unit 102, detection unit 103, engraving unit 104, laser 105, protective cover 106, drive connector 107, working platform 108, workpiece 109, industrial camera 110, camera bracket 111, connecting ring 112, alarm unit 114, mounting hole 115. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the relevant drawings.

[0019] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] Please refer to Figures 1 to 3 On the one hand, the utility model provides a laser engraving machine, which includes a control unit 101, a storage unit 102, a detection unit 103, an engraving unit 104 and a conveying unit. The control unit 101 is respectively connected to the storage unit 102, the detection unit 103 and the engraving unit 104 by signal. The storage unit 102 is used to store a two-dimensional code. The conveying unit conveys a workpiece 109 to the engraving unit 104. The engraving unit 104 performs two-dimensional code engraving on the workpiece 109 according to the pre-engraved two-dimensional code stored in the storage unit 102. The conveying unit then conveys the workpiece 109 engraved with the two-dimensional code to the detection unit 103 for detection. The detection unit 103 obtains the two-dimensional code on the workpiece 109 after engraving and compares it with the two-dimensional code in the storage unit 102.

[0022] The two processes of QR code production and subsequent detection are concentrated together through the conveying unit, which can improve the overall efficiency and automation of production and detection. Through the subsequent detection process of production, the workpiece 109 is screened to see whether it meets the standard, further reducing the error rate and rejection rate.

[0023] In a preferred embodiment, the laser engraving machine also includes a drive connection base 107, and the detection unit 103 and the engraving unit 104 are installed on the drive connection base 107. The drive connection base 107 is used to connect with the driving mechanism, and the drive connection base 107 drives the detection unit 103 and the engraving unit 104 to approach or move away from the workpiece 109.

[0024] The driving mechanism may be a lifting driving mechanism in the prior art, which is used to drive the detection unit 103 and the engraving unit 104 to approach the workpiece 109 on the working platform 108 in the up and down directions.

[0025] In a preferred embodiment, the drive connection seat 107 is further provided with a mounting hole 115, and the mounting hole 115 is used to install the drive mechanism.

[0026] In a preferred embodiment, the storage unit 102 is used to store the two-dimensional code information and the picture information, the detection unit 103 is an industrial camera 110, and the detection unit 103 is used to obtain the two-dimensional code information and the picture information on the engraved workpiece 109.

[0027] The two-dimensional code information refers to whether the two-dimensional code information is correct. The picture information refers to the image information of the two-dimensional code after engraving, including clarity, contrast and integrity. The detection unit 103 obtains the two-dimensional code information and picture information and checks them with the standard two-dimensional code information and picture information in the storage unit 102.

[0028] In a preferred embodiment, the engraving unit 104 includes a laser 105 , which is a galvanometer laser welding device. The laser engraving machine also includes a drive connection base 107 , on which the laser 105 and the industrial camera 110 are both mounted.

[0029] In a preferred embodiment, the laser engraving machine includes a work platform 108, which is located below the detection unit 103 and the engraving unit 104. The work platform 108 also forms an engraving area and a detection area corresponding to the detection unit 103 and the engraving unit 104. The conveying unit conveys the workpiece 109 to the engraving area and the detection area in turn. The engraving unit 104 also includes a laser 105 and a protective cover 106. One end of the protective cover 106 is mounted on the laser emitting end of the laser 105, and the other end of the protective cover 106 extends to the engraving area.

[0030] During the laser engraving process, the lower end of the protective sleeve 106 is outside the workpiece 109 to prevent damage from laser radiation.

[0031] In a preferred embodiment, a connecting ring 112 is sleeved on the outer periphery of the laser emitting end of the laser 105, and the connecting ring 112 and the protective sleeve 106 are connected by threads.

[0032] In a preferred embodiment, the laser engraving machine further includes an alarm unit 114, which is connected to the control unit 101 by signal. When the detection unit 103 obtains a QR code that is not stored in the storage unit 102, the alarm unit 114 emits an audible and / or optical alarm.

[0033] The alarm unit 114 includes but is not limited to: a buzzer, an ISD1820 module, an SD audio module and other sound alarms, as well as an LED light and a photoresistor light alarm. The alarm unit 114 is used to remind the relevant operators to screen the workpieces 109 with unqualified two-dimensional codes.

[0034] The conveying unit can be a robot or a conveyor belt in the prior art, for example, a conveyor belt is set corresponding to the laser 105 and the industrial camera 110, and the conveyor belt is installed on the working platform 108. The conveying unit is not within the scope of the present invention. The conveying unit sequentially conveys the workpiece 109 to the detection unit 103 and the engraving unit 104, and the storage unit 102 is used to store the two-dimensional code information and picture information.

[0035] The detection unit 103 can be a barcode scanner or other visual recognition devices to detect the bit error rate, rejection rate, clarity, contrast, integrity, etc. of the two-dimensional code to ensure that the two-dimensional code can be correctly identified and read.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0038] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A laser engraving machine, characterized in that: The laser engraving machine includes a control unit, a storage unit, a detection unit, an engraving unit and a conveying unit. The control unit is respectively connected to the storage unit, the detection unit and the engraving unit by signal. The storage unit is used to store a two-dimensional code. The conveying unit conveys the workpiece to the engraving unit. The engraving unit engraves the two-dimensional code on the workpiece according to the pre-engraved two-dimensional code stored in the storage unit. The conveying unit then conveys the workpiece engraved with the two-dimensional code to the detection unit for detection. The detection unit obtains the two-dimensional code on the engraved workpiece and compares it with the two-dimensional code in the storage unit.

2. The laser engraving machine according to claim 1, characterized in that: The laser engraving machine further comprises a driving connection seat, the detection unit and the engraving unit are mounted on the driving connection seat, the driving connection seat is used to be connected with a driving mechanism, and the driving connection seat drives the detection unit and the engraving unit to approach or move away from the workpiece.

3. The laser engraving machine according to claim 2, characterized in that: The drive connection seat is also provided with a mounting hole, and the mounting hole is used for mounting the drive mechanism.

4. The laser engraving machine according to claim 1, characterized in that: The storage unit is used to store the two-dimensional code information and the picture information, the detection unit is an industrial camera, and the detection unit is used to obtain the two-dimensional code information and the picture information on the workpiece after engraving.

5. The laser engraving machine according to claim 4, characterized in that: The engraving unit comprises a laser, which is a galvanometer laser welding device. The laser engraving machine also comprises a driving connection seat, on which the laser and the industrial camera are both mounted.

6. The laser engraving machine according to claim 1, characterized in that: The laser engraving machine includes a working platform, which is located below the detection unit and the engraving unit. The working platform also forms an engraving area and a detection area corresponding to the detection unit and the engraving unit. The conveying unit conveys the workpiece to the engraving area and the detection area in sequence. The engraving unit also includes a laser and a protective cover, one end of the protective cover is sleeved on the laser emitting end of the laser, and the other end of the protective cover extends to the engraving area.

7. The laser engraving machine according to claim 6, characterized in that: A connecting ring is sleeved on the outer periphery of the laser emitting end of the laser, and the connecting ring and the protective sleeve are connected by threads.

8. The laser engraving machine according to claim 1, characterized in that: The laser engraving machine further comprises an alarm unit, which is connected to the control unit by signal. When the detection unit obtains a two-dimensional code which is not stored in the storage unit, the alarm unit issues an audible and / or optical alarm.

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