Method and apparatus for laser engraving of traceability codes

Abstract

This invention provides a method and apparatus for laser engraving traceability codes, relating to the field of laser processing technology. The engraving method includes: pre-storing the traceability code file in the industrial control computer of the marking equipment; engraving the traceability code on a predetermined position on the bottle body using the marking equipment; and cleaning the bottle body before transferring it to the next process. In this invention, the traceability code is engraved on the predetermined position on the bottle body using the marking equipment, making the traceability code less prone to loss and facilitating bottle traceability.

Description

Technical Field

[0001] This invention relates to the field of laser processing technology, and in particular to a method and apparatus for laser engraving traceability codes. Background Technology

[0002] A traceability code is a code that allows users to trace the origin, distribution channels, and quality of a product. During the production process, coding equipment is commonly used to create traceability codes on glass bottles. Through the traceability code, users can learn about each stage of the product's production, processing, transportation, and sales, ensuring that the product's origin is traceable and its destination is verifiable.

[0003] For example, Chinese patent CN211455116U discloses an improved barcode sticker for blood culture bottles, belonging to the field of label stickers. It includes a bottom sticker, a top sticker, and a middle label paper. One side of the bottom sticker has an adhesive layer. The edge of the top sticker is fixed to the other side of the bottom sticker, with a notch. A single-sided gap is formed between the top and bottom stickers. The middle label paper is placed between the top and bottom stickers and includes a printed section and a handle. The printed section is printed with relevant factory information, including the factory barcode. The printed section is slidably connected in the gap. The handle is fixed to the printed section and extends out of the gap through the notch. This invention, without affecting the normal use of the blood culture bottle, can increase the area where the barcode can be pasted, reducing the possibility of the factory barcode or QR code on the blood culture bottle being covered by subsequently pasted barcodes.

[0004] In the above scheme, the factory barcode is printed on the label paper on the outside of the bottle. During transportation or storage, due to vibration, squeezing or repeated handling, the label paper is easy to fall off or be damaged from the bottle, making it impossible to trace the product. Summary of the Invention

[0005] This invention provides a method and apparatus for laser engraving traceability codes, which solves the technical problem that currently, barcodes are printed on labels on the outside of bottles. During transportation or storage, the labels are easily detached or damaged due to vibration, squeezing, or repeated handling, making it impossible to trace the product.

[0006] To address the aforementioned technical problems, this invention discloses a laser engraving method for traceability codes, comprising the following steps:

[0007] Step 1: Pre-save the traceability code file into the industrial control computer of the marking equipment;

[0008] Step 2: Use a marking device to engrave the traceability code on the predetermined position on the bottle;

[0009] Step 3: After cleaning the bottle, transfer it to the next process.

[0010] Preferably, the traceability code includes a barcode.

[0011] Preferably, the traceability code also includes an orientation mark, which is placed on one side of the barcode, and one end of the orientation mark is used to indicate the positive direction for barcode recognition.

[0012] Preferably, in step 2, the predetermined location includes, but is not limited to, the inner wall of the bottle bottom, the interlayer of the bottle bottom, the outer wall of the bottle bottom, and the interlayer of the bottle wall.

[0013] Preferably, in step 2, after the traceability code is engraved, a chip removal mechanism is used to remove the chips generated during engraving.

[0014] Preferably, in step 3, cleaning the bottle includes washing, sterilizing, and cooling the bottle using a washer-dryer combo machine.

[0015] The present invention also provides a traceability code laser engraving device, which uses the above-mentioned traceability code laser engraving method for engraving. The device includes a worktable, on which a first rotary conveying mechanism, a second rotary conveying mechanism and several linear conveying mechanisms are arranged. A feeding mechanism is arranged on one side of the first rotary conveying mechanism, and a second rotary conveying mechanism is arranged on the other side of the first rotary conveying mechanism. A marking device is arranged above the first rotary conveying mechanism, and a chip removal mechanism is arranged below the second rotary conveying mechanism.

[0016] Preferably, the first rotary conveying mechanism includes a drive motor and a first rotary disk. The drive motor is mounted on the worktable, and the output shaft of the drive motor is connected to the center of the first rotary disk. A plurality of first placement slots are provided on the outer periphery of the first rotary disk, and the plurality of first placement slots are distributed in a circular array.

[0017] Preferably, a protective plate is provided on the outer side of the first rotating disk, the bottom of the protective plate is connected to the worktable, the protective plate has an arc structure, and a support plate is provided on the side of the protective plate near the first rotating disk, the support plate is located below the first rotating disk.

[0018] Preferably, the second rotary conveying mechanism includes a second rotary disk, which is driven by a transmission component. A plurality of second placement slots are provided on the outer periphery of the second rotary disk, and the plurality of second placement slots are arranged in a circular array. An anti-drop component is provided in the second placement slot to prevent the bottle from falling out of the second placement slot.

[0019] The technical solution of this invention has the following advantages: This invention provides a method and apparatus for laser engraving traceability codes, relating to the field of laser processing technology. The engraving method includes: pre-storing the traceability code file in the industrial control computer of the marking equipment; engraving the traceability code on a predetermined position on the bottle body using the marking equipment; and cleaning the bottle body before transferring it to the next process. In this invention, the traceability code is engraved on a predetermined position on the bottle body using the marking equipment, making the traceability code less prone to loss and facilitating the traceability of the bottle.

[0020] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the means particularly pointed out in the written description and the accompanying drawings.

[0021] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a flowchart of the laser engraving method for traceability codes in this invention;

[0024] Figure 2 This is a schematic diagram of the traceability code in this invention;

[0025] Figure 3 This is a top view of the traceability code laser engraving device of the present invention;

[0026] Figure 4 This is a partial cross-sectional view of the second rotating disk in this invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point B in the middle;

[0028] Figure 6 For the present invention Figure 4 Enlarged view of the structure at point C;

[0029] Figure 7 For the present invention Figure 4 Enlarged view of the structure at point D;

[0030] Figure 8 For the present invention Figure 7 Partial sectional view at EE.

[0031] In the diagram: 1. Marking equipment; 2. Bottle body; 3. Workbench; 4. Linear conveyor mechanism; 5. Feeding mechanism; 6. Chip removal mechanism; 7. First rotary disk; 8. First placement slot; 9. Protective plate; 10. Second rotary disk; 11. Second placement slot; 12. Rotating hole; 13. Drive hole; 14. Drive block; 15. Slider; 16. Slide groove; 17. Guide groove; 18. Rotating shaft; 19. Stop block; 20. Sliding column; 21. Ball bearing; 22. Clamping block; 23. Return spring; 24. Gear; 25. Mounting plate; 26. Electric push rod; 27. Rack. Detailed Implementation

[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0033] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] Example 1

[0035] This invention provides a method for laser engraving traceability codes, such as... Figure 1 As shown, it includes the following steps:

[0036] Step 1: Pre-save the traceability code file into the industrial control computer of marking equipment 1;

[0037] Step 2: Use marking equipment 1 to engrave the traceability code on the predetermined position on the bottle body 2;

[0038] Step 3: After cleaning bottle 2, transfer it to the next process.

[0039] The working principle and beneficial effects of the above technical solution are as follows: First, the traceability code file is pre-stored in the industrial control computer of the marking equipment 1; then, the traceability code is engraved on the predetermined position of the bottle body 2 by the marking equipment 1. The material of the bottle body 2 includes, but is not limited to, transparent glass and transparent plastic; finally, the bottle body 2 is cleaned and then sent to the next process. In the above solution, the traceability code is engraved on the predetermined position of the bottle body 2 by the marking equipment 1, which makes the traceability code less likely to be lost and facilitates the traceability of the bottle body 2.

[0040] Example 2

[0041] Based on the above embodiment 1, as follows Figure 2 As shown, the traceability code includes a barcode;

[0042] The traceability code also includes an orientation mark, which is placed on one side of the barcode. One end of the orientation mark is used to indicate the positive direction for barcode recognition.

[0043] The working principle and beneficial effects of the above technical solution are as follows: the traceability code barcode can be in the form of a digital barcode, an alphanumeric barcode, or a combination of both. An orientation mark is also set on one side of the barcode. Preferably, the orientation mark is above or below the barcode. The orientation mark includes, but is not limited to, the letter "A". The tip of "A" indicates the positive direction of the traceability code digital recognition, which makes it easy for users or collection systems to read the traceability code.

[0044] Example 3

[0045] Based on embodiment 1 or 2, in step 2, the predetermined positions include, but are not limited to, the inner wall of the bottle bottom, the interlayer of the bottle bottom, the outer wall of the bottle bottom, and the interlayer of the bottle wall;

[0046] After the traceability code is engraved, the chip removal mechanism 6 is used to remove the chips generated during the engraving process.

[0047] The working principle and beneficial effects of the above technical solution are as follows: The marking equipment 1 can be a laser marking machine or a laser engraving machine. When the predetermined position is the inner wall of the bottom of the bottle 2, the laser marking machine engraves the traceability code in the form of a digital bar onto the inner wall of the bottom of the bottle through the bottle mouth. Then, the chip removal mechanism 6 removes the chips generated during engraving. The chip removal mechanism 6 can be a vacuum cleaner or an air blower. Preferably, the chip removal mechanism is a vacuum cleaner. When the predetermined position is the interlayer of the bottom of the bottle 2, the laser engraving machine engraves the traceability code in the form of a digital bar onto the interlayer of the bottom of the bottle through the bottle mouth. Optimally, the predetermined position is not on the outer wall of the bottle. At this time, the traceability code is located inside the bottle 2, and the traceability code will not rub against external objects, thereby reducing the wear of the traceability code and facilitating the traceability of the bottle 2.

[0048] Example 4

[0049] Based on any one of Examples 1-3, in step 3, cleaning the bottle 2 includes washing, sterilizing, and cooling the bottle 2 using a washer-dryer combo machine.

[0050] The working principle and beneficial effects of the above technical solution are as follows: After the traceability code is engraved, the bottle 2 is cleaned, sterilized and cooled by the washing and drying integrated machine, which improves the cleanliness of the bottle 2 and facilitates the filling of subsequent materials.

[0051] Example 5

[0052] Based on any one of Examples 1-4, such as Figure 3 As shown, the traceability code laser engraving device uses the above-mentioned traceability code laser engraving method to engrave, including a worktable 3. The worktable 3 is equipped with a first rotary conveyor mechanism, a second rotary conveyor mechanism and several linear conveyor mechanisms 4. A feeding mechanism 5 is set on one side of the first rotary conveyor mechanism, and a second rotary conveyor mechanism is set on the other side of the first rotary conveyor mechanism. A marking device 1 is set above the first rotary conveyor mechanism, and a chip removal mechanism 6 is set below the second rotary conveyor mechanism.

[0053] The first rotary conveying mechanism includes a drive motor and a first rotary disk 7. The drive motor is mounted on the worktable 3. The output shaft of the drive motor is connected to the center of the first rotary disk 7. A plurality of first placement slots 8 are provided on the outer periphery of the first rotary disk 7. The plurality of first placement slots 8 are arranged in a ring array.

[0054] A protective plate 9 is provided on the outer side of the first rotating disk 7. The bottom of the protective plate 9 is connected to the workbench 3. The protective plate 9 has an arc structure. A support plate is provided on the side of the protective plate 9 near the first rotating disk 7. The support plate is located below the first rotating disk 7.

[0055] The second rotary conveying mechanism includes a second rotary disk 10, which is driven by a transmission assembly. Several second placement slots 11 are arranged on the outer periphery of the second rotary disk 10. The several second placement slots 11 are arranged in a circular array. Anti-drop components are provided in the second placement slots 11 to prevent the bottle 2 from falling out of the second placement slots 11.

[0056] The working principle and beneficial effects of the above technical solution are as follows: Bottle 2 is conveyed to the first rotary conveyor mechanism via the feeding mechanism 5. The feeding mechanism 5 is an existing automatic bottle discharge mechanism, which facilitates the automatic feeding of bottle 2. Then, a single bottle 2 enters the first placement slot 8 of the first rotary disk 7 with its bottle mouth facing upward. The drive motor is started, and the drive motor drives the first rotary disk 7 to rotate. The bottle 2 slides along the upper surface of the pallet. By setting a protective plate 9, the bottle 2 can be stably kept in the first placement slot 8. When the bottle 2 moves to the bottom of the marking device 1, the drive motor stops rotating. The marking device 1 emits a laser and engraves the traceability code at a predetermined position on the bottom of the bottle. After the traceability code is engraved, the marking device 1 is turned off, the drive motor is started again, and the first rotary disk 7 is driven to rotate. A linear conveyor mechanism 4 is set between the first rotary conveyor mechanism and the second rotary conveyor mechanism. Preferably, the linear conveyor mechanism 4 is a mechanical rocker arm. When the first placement slot 8 and the second placement slot 7 are connected, the linear conveyor mechanism 4 is set between them. When the placement slots 11 are aligned, the bottle 2 located in the first placement slot 8 enters the second placement slot 11 under the conveying of the linear conveying mechanism 4. Then, driven by the transmission component, the second rotating disk 10 rotates with the first rotating disk 7. When the bottle 2 in the second placement slot 11 reaches above the chip removal mechanism 6, the chip removal mechanism 6 is activated, thereby removing the chips generated inside the bottle 2 due to carving, improving the cleanliness inside the bottle 2, and ensuring the quality and safety of the filled product inside the bottle 2. After the chips are removed, the second rotating disk 10 rotates, causing the bottle 2 to move away from the chip removal mechanism 6. When the bottle 2 reaches another linear conveying mechanism 4, the linear conveying mechanism 4 can then convey the chip-removed bottle 2 to the next process. An anti-drop component is installed in the second placement slot 11. When the second rotating disk 10 rotates, the anti-drop component can prevent the bottle 2 from falling out of the second placement slot 11, improving the reliability of the rotational conveying of the bottle 2.

[0057] Example 6

[0058] Based on embodiment 5, the transmission assembly includes a first sprocket mounted on the output shaft of the drive motor, a rotating shaft mounted at the bottom center of the second rotating disk 10, a second sprocket mounted on the rotating shaft, and the first sprocket and the second sprocket connected by a chain drive.

[0059] The working principle and beneficial effects of the above technical solution are as follows: When the drive motor rotates, the output shaft of the drive motor drives the first sprocket to rotate. The rotation of the first sprocket drives the second sprocket to rotate through the chain, thereby driving the rotating shaft to rotate. The rotation of the rotating shaft can drive the second rotating disk 10 to rotate synchronously with the first rotating disk 7, thereby improving the consistency of rotation between the first rotating disk 7 and the second rotating disk 10. The number of first placement slots 8 is the same as the number of second placement slots 11. Initially, one of the first placement slots 8 of the first rotating disk 7 is connected to one of the second placement slots 11 of the second rotating disk 10. When the marking device 1 engraves the traceability code through the bottle mouth, the chip removal mechanism 6 works synchronously to suck up the chips inside the corresponding bottle body 2, thereby improving production efficiency.

[0060] Example 7

[0061] Based on Example 5 or 6, such as Figures 4-8 As shown, the anti-fall component includes rotating holes 12 symmetrically arranged on both sides of the second placement groove 11. A drive hole 13 is provided at the end of the rotating hole 12 away from the second placement groove 11, and the drive hole 13 is perpendicular to the rotating hole 12. Both the rotating hole 12 and the drive hole 13 are located within the second rotating disk 10. The end of the drive hole 13 near the worktable 3 penetrates the bottom wall of the second rotating disk 10. A drive block 14 is slidably arranged within the drive hole 13. The end of the drive block 14 near the worktable 3 is hemispherical. A slider 15 is provided on the side of the drive block 14 away from the rotating hole 12. The slider 15 is slidably arranged within a slide groove 16, which is located within the second rotating disk 10. The slider 15 is connected to the inner wall of the slide groove 16 via a connecting spring. A guide groove 17 is provided on the side of the drive block 14 near the rotating hole 12. A guide slope is provided on the inner wall of the guide groove 17. The guide groove 17 is located near the worktable 3... The depth of the end is greater than the depth of the end of the guide groove 17 away from the worktable 3. A rotating shaft 18 is rotatably installed in the rotating hole 12. One end of the rotating shaft 18 extends into the second placement groove 11 and is connected to the stop block 19. The stop block 19 is set in the second placement groove 11. One side of the stop block 19 is adapted to the outer wall of the bottle body 2. A first sliding hole and a second sliding hole are provided in the rotating shaft 18. The second sliding hole is located at the end of the first sliding hole near the second placement groove 11 and is connected to the second placement groove 11. A sliding column 20 is slidably installed in the first sliding hole. One end of the sliding column 20 extends into the guide groove 17 and is provided with a ball 21. The other end of the sliding column 20 extends into the second sliding hole and is provided with a clamping block 22. The clamping block 22 is slidably connected to the inner wall of the second sliding hole. A return spring 23 is provided in the second sliding hole. The clamping block 22 is connected to the inner wall of the second sliding hole through the return spring 23.

[0062] The working principle and beneficial effects of the above technical solution are as follows: When the first placement slot 8 and the second placement slot 11 are connected, the bottle 2 in the first placement slot 8 can be conveyed to the second placement slot 11 through the linear conveying mechanism 4. The linear conveying mechanism includes a transmission chain plate. Under the transmission of the linear conveying mechanism, the bottle 2 can contact the stop block 19. There is a gap between the stop block 19 and the innermost part of the second placement slot 11. Then, as the second rotating disk 10 rotates, the lower end of the drive block 14 slides along the upper surface of the transmission chain plate. When the drive block 14 separates from the transmission chain plate, Under the action of gravity and the connecting spring, the drive block 14 slides downward in the drive hole 13, and the slider 15 slides downward in the slide groove 16. Since the ball 21 is in contact with the guide slope, when the drive block 14 drives the guide groove 17 to move downward, the guide slope can push the sliding column 20 to slide along the first sliding hole towards the bottle body 2, and then drive the clamping block 22 to move towards the bottle body 2 until the clamping block 22 is in close contact with the outer wall of the bottle body 2. When the bottle body 2 is separated from the transmission chain plate, the bottle body 2 is in a state of bottom suspension, and the clamping block 22 controls the movement of the bottle body 2. The clamping of the outer wall of bottle 2 prevents bottle 2 from falling during rotational conveying, improving the stability and reliability of bottle 2 during conveying. When another drive block 14 separates from the transmission chain plate, another clamping block 22 also clamps the outer wall of bottle 2, placing bottle 2 in the middle of the second placement slot 11. This facilitates the alignment of the input end of the chip removal mechanism 6 with the bottle mouth of bottle 2, ensuring the chip removal mechanism 6's chip suction capacity and enhancing the chip suction effect. This makes the removal of debris inside bottle 2 more thorough, improving the cleanliness of the inside of bottle 2. After the chip removal is completed, the clean bottle 2 is rotated and conveyed to another linear conveyor 4. Since the bottom of the drive block 14 is hemispherical, when the side wall of the drive block 14 contacts the transmission chain plate, the drive block 14 can slide into the drive hole 13. The bottom of the drive block 14 slides back onto the transmission chain plate. When the drive blocks 14 on both sides of the second placement groove 11 are in contact with the transmission chain plate of the linear conveyor 4, the two clamping blocks 22 are separated from the outer wall of the bottle 2. At this time, under the transmission of the linear conveyor 4, the bottle 2 can smoothly enter the next process.

[0063] Example 8

[0064] Based on Example 7, such as Figure 3 , Figure 4 , Figure 6As shown, it also includes a rotating assembly, which includes a third sliding hole. The third sliding hole is located inside the second rotating disk 10 and is perpendicular to the rotating hole 12. The third sliding hole is connected to the rotating hole 12 near the middle position. A gear 24 is arranged at the intersection of the third sliding hole and the rotating hole 12. The gear 24 is mounted on the rotating shaft 18. One end of the third sliding hole passes through the outer wall of the second rotating disk 10. A mounting plate 25 is arranged on the worktable 3. An electric push rod 26 is arranged on the mounting plate 25. A rack 27 is arranged at the output end of the electric push rod 26. The end of the rack 27 away from the electric push rod 26 is aligned with the entrance of the third sliding hole.

[0065] The working principle and beneficial effects of the above technical solution are as follows: When the bottle body 2 reaches directly above the chip removal mechanism 6, the electric push rod 26 is activated. The electric push rod 26 pushes out and drives the rack 27 to move towards the third sliding hole. The rack 27 enters the third sliding hole and moves along the inner wall of the third sliding hole. When the rack 27 meshes with the gear 24, the rack 27 continues to move and can drive the gear 24 to rotate. The rotation of the gear 24 drives the rotating shaft 18 to rotate in the rotating hole 12. The rotation of the rotating shaft 18 drives the clamping block 22 and the stop block 19 to rotate in the second placement groove 11, thereby driving the bottle body 2 to rotate from bottle mouth facing upward to bottle mouth facing downward. The debris on the inner wall of the bottle body 2 falls towards the chip removal mechanism 6 under the action of gravity. At the same time, the chip removal mechanism 6 is activated to suck up the fallen debris, preventing the debris from remaining inside the bottle body 2. After the suction is completed, the electric push rod 26 returns to its original position, and the bottle body 2 rotates from bottle mouth facing downward to bottle mouth facing upward again, which facilitates the subsequent conveying and filling. The above solution allows the bottle 2 to rotate in the second placement slot 11 with the bottle opening facing downwards, facilitating the removal of debris and preventing larger debris from being unable to be sucked up. This further improves the cleanliness of the inside of the bottle 2 and makes the traceability code clearer.

[0066] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0067] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. Other modifications can be easily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A method for laser engraving traceability codes, characterized in that, Includes the following steps: Step 1: Pre-save the traceability code file into the industrial control computer of the marking equipment (1); Step 2: Use a marking device (1) to engrave the traceability code on the bottle body (2) at a predetermined position; Step 3: After cleaning the bottle (2), transfer it to the next process; It also includes a traceability code laser engraving device, including a workbench (3), on which a first rotary conveyor, a second rotary conveyor and several linear conveyors (4) are provided. A feeding mechanism (5) is provided on one side of the first rotary conveyor, and a second rotary conveyor is provided on the other side of the first rotary conveyor. A marking device (1) is provided above the first rotary conveyor, and a chip removal mechanism (6) is provided below the second rotary conveyor. The second rotary conveying mechanism includes a second rotary disk (10), which is driven by a transmission component. The outer periphery of the second rotary disk (10) is provided with several second placement slots (11), which are arranged in a circular array. An anti-drop component is provided in the second placement slot (11) to prevent the bottle (2) from falling out of the second placement slot (11). The anti-fall component includes rotating holes (12) symmetrically arranged on both sides of the second placement slot (11). A drive hole (13) is provided at the end of the rotating hole (12) away from the second placement slot (11). The drive hole (13) is perpendicular to the rotating hole (12). Both the rotating hole (12) and the drive hole (13) are located inside the second rotating disk (10). The end of the drive hole (13) near the worktable (3) penetrates the bottom wall of the second rotating disk (10). A drive block (14) is slidably arranged inside the drive hole (13) to drive... The end of the drive block (14) near the worktable (3) is hemispherical. A slider (15) is provided on the side of the drive block (14) away from the rotating hole (12). The slider (15) is slidably disposed in the slide groove (16). The slide groove (16) is disposed in the second rotating disk (10). The slider (15) is connected to the inner wall of the slide groove (16) by a connecting spring. A guide groove (17) is provided on the side of the drive block (14) near the rotating hole (12). A guide slope is provided on the inner wall of the guide groove (17). The guide groove (17) is near the worktable (3). One end of the workbench (3) is deeper than the guide groove (17) at the end away from the workbench (3). A rotating shaft (18) is rotatably installed in the rotating hole (12). One end of the rotating shaft (18) extends into the second placement groove (11) and is connected to the stop block (19). The stop block (19) is installed in the second placement groove (11). One side of the stop block (19) is adapted to the outer wall of the bottle body (2). A first sliding hole and a second sliding hole are provided in the rotating shaft (18). The second sliding hole is located near the second placement groove of the first sliding hole. 11) At one end, the second sliding hole is connected to the second placement groove (11), and a sliding column (20) is slidably arranged in the first sliding hole. One end of the sliding column (20) extends into the guide groove (17) and is provided with a ball (21). The other end of the sliding column (20) extends into the second sliding hole and is provided with a clamping block (22). The clamping block (22) is slidably connected to the inner wall of the second sliding hole. A reset spring (23) is provided in the second sliding hole. The clamping block (22) is connected to the inner wall of the second sliding hole through the reset spring (23). It also includes a rotating component, which includes a third sliding hole. The third sliding hole is located inside the second rotating disk (10). The third sliding hole is perpendicular to the rotating hole (12). The third sliding hole is connected to the rotating hole (12) near the middle position. A gear (24) is set at the intersection of the third sliding hole and the rotating hole (12). The gear (24) is installed on the rotating shaft (18). One end of the third sliding hole passes through the outer wall of the second rotating disk (10). A mounting plate (25) is set on the worktable (3). An electric push rod (26) is set on the mounting plate (25). A rack (27) is set at the output end of the electric push rod (26). The end of the rack (27) away from the electric push rod (26) is aligned with the entrance of the third sliding hole.

2. The traceability code laser engraving method according to claim 1, characterized in that, Traceability codes include barcodes.

3. The traceability code laser engraving method according to claim 2, characterized in that, The traceability code also includes an orientation mark, which is placed on one side of the barcode. One end of the orientation mark is used to indicate the positive direction for barcode recognition.

4. The traceability code laser engraving method according to claim 1, characterized in that, In step 2, the predetermined location is the inner wall of the bottle bottom or the interlayer of the bottle wall.

5. The traceability code laser engraving method according to claim 4, characterized in that, In step 2, after the traceability code is engraved, the chip removal mechanism (6) is used to remove the chips generated during engraving.

6. The traceability code laser engraving method according to claim 1, characterized in that, In step 3, cleaning the bottle (2) includes washing, sterilizing and cooling the bottle (2) using a washer-dryer.

7. The traceability code laser engraving method according to claim 1, characterized in that, The first rotary conveying mechanism includes a drive motor and a first rotary disk (7). The drive motor is mounted on the worktable (3). The output shaft of the drive motor is connected to the center of the first rotary disk (7). Several first placement slots (8) are arranged on the outer periphery of the first rotary disk (7). The several first placement slots (8) are arranged in a ring array.

8. The traceability code laser engraving method according to claim 1, characterized in that, A protective plate (9) is provided on the outside of the first rotating disk (7). The bottom of the protective plate (9) is connected to the workbench (3). The protective plate (9) has an arc-shaped structure. A support plate is provided on the side of the protective plate (9) close to the first rotating disk (7). The support plate is located below the first rotating disk (7).

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