A coding machine

Abstract

The utility model discloses a coding machine, including a frame, a workbench installed on the top of the frame, wherein a protective cover is installed on the top of the workbench, a material moving component and an adjustment mechanism installed on the workbench, the adjustment mechanism is located at the end of the material moving component, the starting end of the material moving component is located outside the protective cover, and a material rotating component is installed on the material moving component; a fiber laser is installed on the adjustment mechanism, and a controller is installed on the protective cover. The utility model, through the arrangement of the material moving component and the adjustment mechanism, cooperates with the controller, when the operator adjusts the fiber laser, there is no need to manually adjust, and the controller can be used to control the material moving component and the transverse motor and the lifting motor in the adjustment mechanism to adjust, without the need for manual adjustment by the staff, thereby reducing the workload and improving work efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing, in particular to a coding machine. Background Art

[0002] With the development of laser printing technology, laser coding machines, as a new engraving and printing technology, have replaced traditional manual marking methods. They can efficiently mark various products. The high-temperature laser beam melts the surface material of the product, exposing the deep material, leaving a permanent mark. Laser marking can produce various texts, symbols and patterns, and the character size can range from millimeters to microns, which is of special significance for product anti-counterfeiting.

[0003] After searching, a desktop fiber laser marking machine is disclosed in the utility model patent with the existing application number CN202020914894.6. The utility model is provided with a feed hopper on the support column, and personnel can put the processing parts into it. The stepper motor drives the transmission wheel to drive the connecting column to rotate. The connecting column acts on the feed plate, which can make the feed plate rotate and create a gap with the feed hopper, so that the processing parts fall into the object slot, and the parts can be processed, avoiding the problem of hand pain caused by repeated placement of personnel. At the same time, the processing efficiency is higher and the output is improved.

[0004] However, the above scheme still has the following problems: when personnel rotate to raise or lower the fiber laser, since the turntable is mostly located on the top of the workbench, the operator needs to raise his arm to adjust the operation, and even needs to stand to operate. When the rotation time is too long, it is easy to cause arm pain for the operator, the labor intensity of the operator is high, and the adjustment takes a certain amount of time, which affects work efficiency.

[0005] Therefore, it is an urgent technical problem to provide a method to reduce the labor intensity of operators and improve work efficiency without requiring workers to manually control the lifting and lowering of the fiber laser. Utility Model Content

[0006] The utility model aims to provide a coding machine to solve the problems of high labor intensity and low work efficiency of operators of existing coding machines in the background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model proposes a coding machine, comprising a frame, a workbench installed on the top of the frame, wherein a protective cover is installed on the top of the workbench, a material moving component and an adjustment mechanism installed on the workbench, the adjustment mechanism is located at the end of the material moving component, the starting end of the material moving component is located outside the protective cover, and a material rotating component is installed on the material moving component; a fiber laser is installed on the adjustment mechanism, and a controller is installed on the protective cover.

[0008] Optionally, the material moving assembly, the adjusting mechanism, the material rotating assembly and the fiber laser are all connected to a controller.

[0009] Optionally, the material moving assembly includes a base plate installed on the workbench, a first screw seat installed on one end of the base plate, a first motor seat installed on the other end of the base plate, a first screw movably mounted on the first screw seat at one end, a material motor installed on the first motor seat and connected to the other end of the first screw through a coupling, a first screw nut installed on the first screw, a moving block installed on the first screw nut, a placement plate installed on the moving block, and the material rotation assembly is installed on the placement plate; the material motor is connected to a controller.

[0010] Optionally, the base plate is provided with an installation groove, a first linear guide rail installed in the installation groove, a first slider slidably installed on the first linear guide rail, and the first slider is connected to the bottom of the moving block; the placement plate is provided with an avoidance hole for avoiding the material rotating component.

[0011] Optionally, the workbench is provided with an avoidance groove for avoiding the material rotating component.

[0012] Optionally, the material rotation assembly includes a mounting plate installed at the bottom of the placement plate and located at the mouth of the avoidance hole, a second motor seat installed at the bottom of the mounting plate, a rotating motor installed on the second motor seat, a rotating shaft connected to the rotating motor through a coupling, and a rotating plate connected to the other end of the rotating shaft. The rotating plate can be integrally formed with the rotating shaft, or can be installed on the rotating shaft by bolts, welding, etc.

[0013] Optionally, a thrust ball bearing is installed on the top of the mounting plate, the top surface of the thrust ball bearing is higher than the top surface of the mounting plate and contacts the bottom surface of the rotating plate, and a deep groove ball bearing adapted to the rotating shaft is installed on the bottom of the mounting plate, and the deep groove ball bearing is limited by an elastic retaining ring.

[0014] Optionally, the adjustment mechanism includes a lateral movement component installed on the workbench, a lifting and moving component installed on the lateral movement component, and the fiber laser is installed on the lifting and moving component.

[0015] Optionally, the lateral movement assembly includes a lateral base mounted on the workbench, a second linear guide rail mounted on the lateral base, a second slider slidably mounted on the second linear guide rail, a skateboard seat mounted on the second slider, a second lead screw movably mounted on the lateral base, a lateral motor mounted on one end of the lateral base and connected to the second lead screw, a second lead screw nut mounted on the second lead screw and connected to the bottom surface of the skateboard seat, and the lifting and moving assembly is mounted on the skateboard seat.

[0016] Optionally, the lifting and moving assembly includes a lifting mounting seat installed on the skateboard seat, a lifting motor installed on the top of the lifting mounting seat, a third lead screw movably installed on the lifting mounting seat and connected to the lifting motor, a third lead screw nut installed on the third lead screw, and a lifting plate installed on the third lead screw nut, and the fiber laser is installed on the lifting plate.

[0017] Optionally, a lighting lamp is installed on the top of the protective cover, a maintenance door is installed on the side wall of the protective cover, and a purification structure is installed on the back of the protective cover.

[0018] Optionally, the purification structure includes a purification box installed on the protective cover, a disassembly plate installed on the top of the purification box, a purification frame detachably installed on the disassembly plate, activated carbon filled in the purification frame, an air inlet arranged on the purification box, and an exhaust fan installed at the air inlet.

[0019] Optionally, a T-shaped slot is provided on the disassembly and assembly plate, a T-shaped block adapted to the T-shaped slot is installed on the purification frame, an air hole is provided on the purification frame; and an air outlet is provided on the purification box.

[0020] Optionally, an infrared distance measuring sensor connected to the controller is installed on the top of the protective cover, and the installation position of the infrared distance measuring sensor is located on the material movement trajectory in its orthographic projection on the workbench.

[0021] Compared with the prior art, the utility model provides a coding machine with the following beneficial effects:

[0022] The coding machine, through the setting of material moving components and adjustment mechanisms, cooperates with the controller. When the operator adjusts the fiber laser, there is no need to manually adjust it. The controller can be used to control the material moving components and the horizontal motor and the lifting motor in the adjustment mechanism for adjustment. There is no need for manual adjustment by the staff, which reduces the workload and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 It is a schematic diagram of the structure of the utility model after removing the protective cover and the optical fiber laser.

[0025] Figure 3 It is a structural schematic diagram of a material moving component and a material rotating component of the utility model.

[0026] Figure 4 It is a structural schematic diagram of the material moving component of the utility model after the placement plate is removed.

[0027] Figure 5It is a connection diagram of the material rotating component and the material moving component of the utility model.

[0028] Figure 6 It is a structural schematic diagram of the adjustment mechanism and the optical fiber laser of the utility model.

[0029] Figure 7 It is a structural schematic diagram of the lateral moving component of the utility model.

[0030] Figure 8 It is a structural schematic diagram of the lifting and moving component of the utility model.

[0031] Fig. 9 It is a schematic diagram of the position of the purification structure of the utility model.

[0032] Fig.10 It is a cross-sectional view of the purification structure of the utility model.

[0033] Fig.11 It is a structural schematic diagram of the disassembly and assembly plate of the utility model.

[0034] Fig.12 It is a schematic diagram of the structure of the purification box of the utility model.

[0035] Fig.13 It is a structural schematic diagram of the purification frame of the utility model.

[0036] Fig.14 The utility model is a schematic diagram of the positions of the protective cover, the infrared distance sensor and the lighting lamp.

[0037] Markings in the figure: 1. Frame; 2. Workbench; 3. Protective cover; 31. Light; 32. Maintenance door; 4. Material moving assembly; 41. Bottom plate; 411. Mounting slot; 412. First linear guide; 413. First slider; 42. First lead screw seat; 43. First motor seat; 44. First lead screw; 45. Material motor; 46. First lead screw nut; 47. Moving block; 48. Placement plate; 481. Avoidance hole; 482. Avoidance slot; 5. Adjustment mechanism; 51. Horizontal moving assembly; 511. Horizontal base; 512. Second linear guide; 513. Second slider; 514. Slide plate seat; 515. Second lead screw; 516. Horizontal motor; 517. Second lead screw nut; 52, lifting and moving assembly; 521, lifting mounting seat; 522, lifting motor; 523, third lead screw; 524, third lead screw nut; 525, lifting plate; 6, material rotating assembly; 61, mounting plate; 611, thrust ball bearing; 612, deep groove ball bearing; 62, second motor seat; 63, rotating motor; 64, rotating shaft; 65, rotating plate; 7, fiber laser; 8, controller; 81, infrared ranging sensor; 9, purification structure; 91, purification box; 911, air outlet; 92, disassembly and assembly plate; 921, T-slot; 93, purification frame; 931, T-block; 932, air hole; 94, air inlet; 95, exhaust fan. DETAILED DESCRIPTION

[0038] The following is a detailed description in conjunction with the accompanying drawings and specific implementations. In the following description, many specific details are set forth to facilitate a full understanding of the present utility. However, the present utility can be implemented in many other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present utility, so the present utility is not limited by the specific embodiments disclosed below.

[0039] A coding machine of the present application can be used for laser marking of products, and of course can also be used in other similar application scenarios. A coding machine is described in detail below.

[0040] Example 1

[0041] See attached Figure 1 — Figure 8 , Fig.14 As shown, a schematic diagram of the structure of a preferred embodiment of a coding machine of the present application is shown. The coding machine comprises a frame 1, a workbench 2 mounted on the top of the frame 1, wherein a protective cover 3 is mounted on the top of the workbench 2, a material moving component 4 and an adjustment mechanism 5 mounted on the workbench 2, the adjustment mechanism 5 is located at the end of the material moving component 4, the starting end of the material moving component 4 is located outside the protective cover 3, a material rotating component 6 is mounted on the material moving component 4, a fiber laser 7 is mounted on the adjustment mechanism 5, and a controller 8 is mounted on the protective cover 3.

[0042] The utility model prevents the fiber laser 7 from contacting the operator during coding by setting the protective cover 3, thereby protecting the operator; by setting the material moving component 4, the worker only needs to place the material on the material moving component 4, and the material moving component 4 will drive the material to move to the marking position for marking. When the worker loads the material, there is no need to stand up from the position, thereby reducing the labor intensity of the operator; by setting the adjustment mechanism 5, the operator can control the movement of the fiber laser 7 through the controller 8, and the operator does not need to adjust manually, thereby avoiding the operator from raising his arms for a long time to operate or standing for a long time to operate, effectively avoiding arm or leg pain of the operator, reducing the labor intensity of the operator, and the adjustment speed is greater than the speed of manual adjustment, thereby improving work efficiency.

[0043] See attached Figure 2 — Figure 4 As shown, in the utility model, the material moving assembly 4 includes a base plate 41 installed on the workbench 2, a first screw seat 42 installed on one end of the base plate 41, a first motor seat 43 installed on the other end of the base plate 41, a first screw 44 with one end movably installed on the first screw seat 42, a material motor 45 installed on the first motor seat 43 and connected to the other end of the first screw 44 through a coupling, a first screw nut 46 installed on the first screw 44, a moving block 47 installed on the first screw nut 46, a placement plate 48 installed on the moving block 47, the material motor 45 is connected to the controller 8, and the material rotation assembly 6 is installed on the placement plate 48.

[0044] The utility model provides an installation position through the arrangement of the base plate 41; provides installation conditions for the first lead screw 44 through the arrangement of the first lead screw seat 42; provides an installation position for the material motor 45 through the arrangement of the first motor seat 43; and through the arrangement of the first lead screw 44, in cooperation with the first lead screw nut 46, the material motor 45 can drive the first lead screw nut 46 to move when driving the first lead screw 44 to rotate, thereby driving the moving block 47 to move, so that the moving block 47 can drive the placement plate 48 to move, drive the material rotation assembly 6 to move, drive the material to move, and move the material to the marking position. It should be noted that in the present application, the material motor 45 is connected to the controller 8, and the material placement tooling can be installed on the placement plate 48 and the rotating plate 65 of the material rotation component 6. The material placement tooling can be replaced according to the shape of the product to prevent the material from moving when the material moving component 4 drives the material to move; and the material rotation component 6 is used for products with notches or hollows. In the process of placing the product, there is a possibility that the notch or hollow position of the product is moved to the marking position. At this time, marking cannot be performed, so it is necessary to drive the product to continue to rotate through the material rotation component 6 to ensure the success of marking.

[0045] See attached Figure 2 — Figure 4 As shown, in the utility model, a mounting groove 411 is provided on the bottom plate 41, a first linear guide rail 412 is installed in the mounting groove 411, a first slider 413 is installed on the first linear guide rail 412, and the first slider 413 is connected to the bottom of the moving block 47; a avoidance hole 481 for avoiding the material rotating component 6 is provided on the placement plate 48, and an avoidance groove 482 for avoiding the material rotating component 6 is provided on the workbench 2.

[0046] The utility model limits the installation position of the first linear guide 412 by setting the installation groove 411; guides the movement of the placement plate 48 by setting the first slider 413 in cooperation with the first linear guide 412; limits the installation position of the material rotation component 6 by setting the avoidance hole 481; avoids the material rotation component 6 by setting the avoidance groove 482, ensures that the material rotation component 6 can move with the placement plate 48, and prevents the material rotation component 6 from interfering with the workbench 2.

[0047] See attached Figure 2 — Figure 5 As shown, in the utility model, the material rotating assembly 6 includes a mounting plate 61 installed at the bottom of the placement plate 48 and located at the mouth of the avoidance hole 481, a second motor seat 62 installed at the bottom of the mounting plate 61, a rotating motor 63 installed on the second motor seat 62, a rotating shaft 64 connected to the rotating motor 63 through a coupling, and a rotating plate 65 connected to the other end of the rotating shaft 64.

[0048] The utility model provides a mounting position for the second motor seat 62 by setting the mounting plate 61; the second motor seat 62 is set as a power source to provide a power source for the rotation of the rotating plate 65 and the material, ensuring that the hollow products can be driven to rotate and the products can be marked normally.

[0049] See attached Figure 2 and Figure 5 As shown, in the utility model, a thrust ball bearing 611 is installed on the top of the mounting plate 61, the top surface of the thrust ball bearing 611 is higher than the top surface of the mounting plate 61 and contacts the bottom surface of the rotating plate 65, and a deep groove ball bearing 612 adapted to the rotating shaft 64 is installed on the bottom of the mounting plate 61, and the deep groove ball bearing 612 is limited by an elastic retaining ring.

[0050] The utility model reduces the friction between the rotating plate 65 and the top surface of the mounting plate 61 by setting the thrust ball bearing 611 and setting the top surface of the thrust ball bearing 611 higher than the top surface of the mounting plate 61; reduces the friction between the rotating shaft 64 and the mounting plate 61 by setting the deep groove ball bearing 612, so that the rotating shaft 64 and the rotating plate 65 rotate more smoothly.

[0051] See attached Figure 6 — Figure 8 As shown, in the present invention, the adjustment mechanism 5 includes a lateral moving component 51 and a lifting moving component 52 installed on the top of the workbench 2 , and the fiber laser 7 is installed on the lifting moving component 52 .

[0052] Among them, the transverse moving component 51 includes a transverse base 511 installed on the workbench 2, a second linear guide rail 512 installed on the transverse base 511, a second slider 513 slidably installed on the second linear guide rail 512, a skateboard seat 514 installed on the second slider 513, a second lead screw 515 movably installed on the transverse base 511, a transverse motor 516 installed on one end of the transverse base 511 and connected to the second lead screw 515, a second lead screw nut 517 installed on the second lead screw 515 and connected to the bottom surface of the skateboard seat 514, and the lifting and moving component 52 is installed on the skateboard seat 514.

[0053] The utility model can guide the movement of the slide plate seat 514 by setting the second linear guide rail 512 in cooperation with the second slider 513; provide an installation position for the lifting and moving assembly 52 by setting the slide plate seat 514, so that the lifting and moving assembly 52 and the fiber laser 7 can move laterally; provide a power source for the lifting and moving assembly 52 and the fiber laser 7 to move laterally by setting the transverse motor 516, and cooperate with the second lead screw 515 and the second lead screw nut 517 to enable the slide plate seat 514 to move along the direction of the second lead screw 515.

[0054] See attached Figure 6 — Figure 8 As shown, in the utility model, the lifting and moving assembly 52 includes a lifting mounting seat 521 installed on the slide seat 514, a lifting motor 522 installed on the top of the lifting mounting seat 521, a third lead screw 523 movably installed on the lifting mounting seat 521 and connected to the lifting motor 522, a third lead screw nut 524 installed on the third lead screw 523, a lifting plate 525 installed on the third lead screw nut 524, and a fiber laser 7 installed on the lifting plate 525.

[0055] The utility model provides an installation foundation through the setting of the lifting mounting seat 521, so that the lifting motor 522 and the third screw 523 provide installation conditions; through the setting of the third screw 523, in cooperation with the lifting motor 522, the third screw nut 524 can be lifted and moved along the third screw 523, driving the lifting plate 525 to be lifted and moved, and driving the fiber laser 7 on the lifting plate 525 to be lifted and moved.

[0056] See attached Figure 1 and Fig.14 As shown, in the present invention, a lighting lamp 31 is installed on the top of the protective cover 3, and a maintenance door 32 is installed on the side wall of the protective cover 3.

[0057] The utility model provides lighting by setting a lighting lamp 31 to ensure that the operator can observe the marking process of the product; through the setting of a maintenance door 32, the material moving component 4, the adjustment mechanism 5, the material rotating component 6 and the fiber laser 7 can be maintained without removing the protective cover 3.

[0058] See attached Figure 1 — Figure 8 As shown, the use process of the utility model is as follows:

[0059] In the first step, the operator resets the material moving assembly 4, the adjusting mechanism 5 and the material rotating assembly 6 through the controller 8;

[0060] In the second step, the operator controls the material moving assembly 4 through the controller 8 to drive the product to the marking position. If the product is a hollow product, the operator needs to confirm by observation whether the hollow part of the product is at the hollow position. If it is at the hollow position, the operator needs to control the rotating motor 63 in the material rotating assembly 6 through the controller 8 to start and drive the product to rotate;

[0061] In the third step, the operator controls the horizontal motor 516 through the controller 8 to start working, driving the slide plate seat 514 to move to the specified position, and then controls the lifting motor 522 through the controller 8 to start working, driving the lifting plate 525 to move to the specified height, so that the fiber laser 7 is located at the specified position;

[0062] In the fourth step, the operator controls the fiber laser 7 through the controller 8 to start working and mark the product. After the marking is completed, it is reset. After the reset is completed, the operator replaces the product.

[0063] It should be noted that the present application can cooperate with the automatic loading and unloading robot arm of the production line to realize automated marking work.

[0064] Example 2

[0065] See attached Fig. 9 — Fig.13 As shown, the difference between this embodiment and embodiment 1 is that, in this embodiment, the gas in the protective cover 3 can be purified. Specifically, the purification structure 9 includes a purification box 91 installed on the protective cover 3, a disassembly plate 92 installed on the top of the purification box 91, a purification frame 93 detachably installed on the disassembly plate 92, activated carbon filled in the purification frame 93, an air inlet 94 installed on the purification box 91, and an exhaust fan 95 installed at the air inlet 94; a T-slot 921 is provided on the disassembly plate 92, a T-block 931 adapted to the T-slot 921 is installed on the purification frame 93, and an air hole 932 is provided on the purification frame 93; and an air outlet 911 is provided on the purification box 91.

[0066] In this embodiment, the ventilation fan 95 is provided to suck the gas in the protective cover 3 and discharge it from the purification structure 9. Since the laser marking machine achieves the purpose of marking by removing material or changing color on the surface of the workpiece through a laser beam, when the laser beam interacts with the surface of the material, high temperature and high energy will be generated, causing the material to partially melt, vaporize or burn, thereby forming smoke and dust. This part of smoke and dust will be harmful to the human body. Therefore, the ventilation fan 95 is used to suck the smoke and dust generated in the marking process, and the smoke and dust are then discharged through the purification structure 9, thereby providing protection for the personal health of the operator.

[0067] In this embodiment, a purification box 91 and a disassembly plate 92 are provided to provide an installation position for the purification frame 93; the purification frame 93 is provided to provide support for the activated carbon, wherein the air holes 932 on the purification frame 93 ensure that the gas sucked by the ventilation fan 33 can pass through the purification frame 93 and fully contact with the activated carbon in the purification frame 93. It should be particularly noted that the aperture size of the air holes 932 is smaller than the size of the activated carbon; the T-slot 921 and the T-block 931 are provided to make the purification frame 93 disassembled and assembled, so that the activated carbon can be replaced; the air outlet 911 is provided to discharge the purified and adsorbed air.

[0068] Example 3

[0069] See attached Fig.14 As shown, the difference between this embodiment and the previous embodiment is that in this embodiment, an infrared distance measuring sensor 81 connected to the controller 8 is installed on the top of the protective cover 3.

[0070] In this embodiment, the hollowed-out part of the product can be sensed by setting the infrared distance sensor 81, that is, when the distance between the product and the infrared distance sensor 81 is not within the specified range, it indicates that there is a problem with the position of the product, and the product needs to be rotated at this time, so that the operator does not need to control the material rotating assembly 6 to rotate through the controller 8. It should be particularly noted that the marking position of the product needs to be flat.

[0071] Specifically, the operator first places the product on the material placement tooling, and then controls the material rotation component 6 to work through the controller 8 to drive the product to rotate, so that after the product moves to the marking position, the hollow part of the product is not located at the marking position, and then the product is driven to move in a straight line through the material moving component 4. When the infrared ranging sensor 81 senses the product, the infrared ranging sensor 81 senses that the distance between the product and the infrared ranging sensor 81 is the standard distance. Then the operator can set the allowable distance error range in the controller 8. During use, the operator places the product on the material placement tooling, and then starts the infrared ranging sensor 81 to sense the product. When the distance between the infrared ranging sensor 81 and the product exceeds the standard range, it indicates that the marking position of the product is inaccurate at this time, and the material rotation component 6 needs to be rotated and adjusted until the infrared ranging sensor 81 senses that the distance between the product and the infrared ranging sensor 81 is within the standard range. The material moving component 4 continues to drive the material to move to the marking position for marking.

[0072] The above embodiments are intended to illustrate the present application, not to limit the present application. Any solution that is a simple transformation of the present application falls within the protection scope of the present application.

Claims

1. A coding machine, comprising a frame (1), and a workbench (2) mounted on the top of the frame (1), characterized in that: A protective cover (3) is installed on the top of the workbench (2), a material moving component (4) and an adjustment mechanism (5) are installed on the workbench (2), the adjustment mechanism (5) is located at the end of the material moving component (4), the starting end of the material moving component (4) is located outside the protective cover (3), a material rotating component (6) is installed on the material moving component (4), a fiber laser (7) is installed on the adjustment mechanism (5), and a controller (8) is installed on the protective cover (3).

2. The coding machine according to claim 1, characterized in that: The material moving assembly (4) comprises a base plate (41) mounted on the workbench (2), a first screw seat (42) mounted on one end of the base plate (41), a first motor seat (43) mounted on the other end of the base plate (41), a first screw (44) with one end movably mounted on the first screw seat (42), a material motor (45) mounted on the first motor seat (43) and connected to the other end of the first screw (44) via a coupling, a first screw nut (46) mounted on the first screw (44), a moving block (47) mounted on the first screw nut (46), and a placement plate (48) mounted on the moving block (47), the material motor (45) being connected to a controller (8), and the material rotating assembly (6) being mounted on the placement plate (48).

3. The coding machine according to claim 2, characterized in that: The bottom plate (41) is provided with a mounting groove (411), a first linear guide rail (412) is installed in the mounting groove (411), a first slider (413) is installed on the first linear guide rail (412), and the first slider (413) is connected to the bottom of the moving block (47); the placement plate (48) is provided with an avoidance hole (481) for avoiding the material rotating assembly (6), and the workbench (2) is provided with an avoidance groove (482) for avoiding the material rotating assembly (6).

4. The coding machine according to claim 3, characterized in that: The material rotating assembly (6) comprises a mounting plate (61) mounted on the bottom of the placement plate (48) and located at the opening of the avoidance hole (481), a second motor seat (62) mounted on the bottom of the mounting plate (61), a rotating motor (63) mounted on the second motor seat (62), a rotating shaft (64) connected to the rotating motor (63) via a coupling, and a rotating plate (65) connected to the other end of the rotating shaft (64).

5. The coding machine according to claim 4, characterized in that: A thrust ball bearing (611) is installed on the top of the mounting plate (61), the top surface of the thrust ball bearing (611) is higher than the top surface of the mounting plate (61) and is in contact with the bottom surface of the rotating plate (65), and a deep groove ball bearing (612) adapted to the rotating shaft (64) is installed on the bottom of the mounting plate (61), the deep groove ball bearing (612) being limited by an elastic retaining ring.

6. The coding machine according to claim 1, characterized in that: The adjustment mechanism (5) comprises a lateral movement component (51) and a lifting movement component (52) mounted on the top of the workbench (2); the optical fiber laser (7) is mounted on the lifting movement component (52).

7. The coding machine according to claim 6, characterized in that: The transverse moving assembly (51) comprises a transverse base (511) mounted on the workbench (2), a second linear guide rail (512) mounted on the transverse base (511), a second slider (513) slidably mounted on the second linear guide rail (512), a slide plate seat (514) mounted on the second slider (513), a second lead screw (515) movably mounted on the transverse base (511), a transverse motor (516) mounted on one end of the transverse base (511) and connected to the second lead screw (515), and a second lead screw nut (517) mounted on the second lead screw (515) and connected to the bottom surface of the slide plate seat (514), and the lifting and moving assembly (52) is mounted on the slide plate seat (514); The lifting and moving assembly (52) comprises a lifting mounting seat (521) mounted on a slide plate seat (514), a lifting motor (522) mounted on the top of the lifting mounting seat (521), a third lead screw (523) movably mounted on the lifting mounting seat (521) and connected to the lifting motor (522), a third lead screw nut (524) mounted on the third lead screw (523), and a lifting plate (525) mounted on the third lead screw nut (524), wherein the optical fiber laser (7) is mounted on the lifting plate (525).

8. The coding machine according to claim 1, characterized in that: A lighting lamp (31) is installed on the top of the protective cover (3), a maintenance door (32) is installed on the side wall of the protective cover (3), and a purification structure (9) is installed on the back of the protective cover (3).

9. The coding machine according to claim 8, characterized in that: The purification structure (9) comprises a purification box (91) mounted on the protective cover (3), a disassembly plate (92) mounted on the top of the purification box (91), a purification frame (93) detachably mounted on the disassembly plate (92), activated carbon filled in the purification frame (93), an air inlet (94) provided on the purification box (91), and an exhaust fan (95) installed at the air inlet (94); The disassembly and assembly plate (92) is provided with a T-shaped slot (921), the purification frame (93) is provided with a T-shaped block (931) adapted to the T-shaped slot (921), the purification frame (93) is provided with an air hole (932), and the purification box (91) is provided with an air outlet hole (911).

10. The coding machine according to claim 1, characterized in that: An infrared distance measuring sensor (81) connected to the controller (8) is installed at the top of the protective cover (3); the installation position of the infrared distance measuring sensor (81) has an orthographic projection on the workbench (2) located on the material movement track.

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