Pass-type laser engraving machine

Abstract

The utility model belongs to the technical field of laser engraving machines, and particularly relates to a pass-type laser engraving machine which comprises a machine body, a through hole is formed in the machine body, a feeding roller is arranged on one side of the through hole, a discharging roller is arranged on the other side of the through hole, and a centering structure, a blocking structure, a liftable conveying belt structure and a photographing structure are sequentially arranged in the machine body in the conveying direction of workpieces. A tensioning structure is arranged in the middle of the liftable conveying belt structure, and a laser engraving structure is arranged on the top of the tensioning structure. A man-machine interaction interface is arranged on the side wall of the machine body, and the display screen, the laser engraving structure, the centering structure, the blocking structure, the liftable conveying belt structure, the photographing structure and the tensioning structure are electrically connected with the man-machine interaction interface. Manual intervention is reduced, the machining efficiency is improved, labor intensity and human errors are reduced, and the device is suitable for large-scale continuous production.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser engraving machines, and particularly relates to a through-type laser engraving machine. Background Art

[0002] A through-type laser engraving machine is a device that uses laser technology to engrave and mark objects. It is usually used in industrial production, product customization, logo production and other fields. The term "through-type" means that this laser engraving machine is designed for continuous processing, that is, objects can continuously pass through the machine for engraving treatment.

[0003] In the existing through-type laser engraving machines, for shapes that are not easy to fix, such as cylindrical materials, manual participation is still required to position and clamp the workpiece to be processed before processing. This not only wastes manpower but also slows down the production efficiency. Therefore, there is an urgent need for a through-type laser engraving machine that can automatically clamp and fix, can adapt to workpieces of different sizes, and at the same time ensure that the clamping force is stable enough to ensure the engraving quality. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a through-type laser engraving machine to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following scheme:

[0006] A through-type laser engraving machine, comprising:

[0007] A machine body, a through hole is provided on the machine body, a feeding roller is provided on one side of the through hole, a discharging roller is provided on the other side of the through hole, a centering structure, a blocking structure, a liftable conveyor belt structure, a photographing structure are sequentially arranged inside the machine body along the transportation direction of the workpiece, a tensioning structure is arranged in the middle of the liftable conveyor belt structure, and a laser engraving structure is arranged on the top of the tensioning structure;

[0008] A human-machine interface and a display screen are arranged on the side wall of the machine body, and the laser engraving structure, the centering structure, the blocking structure, the liftable conveyor belt structure, the photographing structure, and the tensioning structure are electrically connected to the human-machine interface.

[0009] Preferably, the laser engraving structure includes a fixing frame, the fixing frame is fixedly connected to the inner side of the machine body, a three-way laser engraving machine is arranged on the fixing frame, and the three-way laser engraving machine is vertically corresponding to the workpiece located on the tensioning structure;

[0010] The three-way laser engraving machine is electrically connected to the human-machine interface.

[0011] Preferably, the holding structure includes a support seat fixedly connected inside the through hole near the feeding roller. A chute is provided on the top surface of the support seat. One end of a first screw rod is rotatably connected inside the chute. The other end of the first screw rod extends out of the support seat and is axially connected to the output shaft of a first motor. The first motor is fixedly connected to the machine body;

[0012] The thread directions of the left and right ends of the first screw rod are opposite. Sliders are respectively slidably connected to the outer sides of the left and right sides of the first screw rod. A holding column is fixedly connected to the top surface of the slider. The holding column is used to clamp the workpiece;

[0013] The first motor is electrically connected to the human-machine interaction interface.

[0014] Preferably, the blocking structure includes an electric telescopic rod. The electric telescopic rod is fixedly connected inside the machine body. A lifting rod is fixedly connected to the telescopic end of the electric telescopic rod. The lifting rod is used to block the workpiece;

[0015] The electric telescopic rod is electrically connected to the human-machine interaction interface.

[0016] Preferably, the liftable conveyor belt structure includes an electric lifting platform. The fixed end of the electric lifting platform is fixedly connected inside the machine body. Two conveyor belts are symmetrically and rotatably arranged on the movable end of the electric lifting platform. The conveyor belt is used to move the workpiece from the blocking structure towards the photographing structure;

[0017] The electric lifting platform and the conveyor belt are electrically connected to the human-machine interaction interface.

[0018] Preferably, the tensioning structure includes a lifting cylinder. The fixed end of the lifting cylinder is fixedly connected to the bottom surface inside the machine body. The movable end of the lifting cylinder is fixedly connected to a sliding seat. The fixed end of a second motor is fixedly connected inside the sliding seat. The output shaft of the second motor is axially connected to a second screw rod. A threaded section is provided on the outer side of the end of the second screw rod away from the second motor. A transmission cylinder is slidably fitted on the outer side of the threaded section. One end of a connecting rod is hinged to the outer side of the transmission cylinder. The other end of the connecting rod is hinged to a tensioning pressing plate. The tensioning pressing plate is located between the two conveyor belts. The bottom end of the tensioning pressing plate is slidably connected to a limiting structure. The limiting structure is used to ensure that the tensioning pressing plate slides on the same plane;

[0019] The lifting cylinder and the second motor are electrically connected to the human-machine interaction interface.

[0020] Preferably, the limiting structure includes a convex block fixedly connected to the top surface of the sliding seat. A chute is provided on the convex block. The tensioning pressing plate is slidably connected inside the chute.

[0021] Preferably, the photographing structure includes an L-shaped frame fixedly connected to the inner side of the machine body. A CCD camera is fixedly connected to the end of the L-shaped frame, and the CCD camera is used to photograph the workpiece.

[0022] The CCD camera is electrically connected to the human-machine interaction interface and the display screen.

[0023] Compared with the prior art, the present utility model has the following advantages and technical effects:

[0024] The present utility model realizes the automatic clamping function through the clamping structure in the middle. The automatic clamping system reduces the risk of direct contact between the operator and the laser, and improves the safety of the working environment. The continuous conveying function is realized through the blocking structure and the liftable conveyor belt structure. The automatic fixing function is realized through the tensioning structure. The stable clamping force ensures the immobility of the workpiece during the laser engraving process, avoiding engraving deviation or unstable quality caused by unstable clamping, and improving the consistency and accuracy of the finished product.

[0025] The present utility model reduces manual intervention, improves processing efficiency, reduces labor intensity and human errors, and is suitable for large-scale continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0027] Figure 1 is a schematic external structure diagram of the present utility model;

[0028] Figure 2 is Figure 1 the front view of

[0029] Figure 3 is a schematic internal structure diagram of the present utility model;

[0030] Figure 4 is a cross-sectional view of the clamping structure in the middle;

[0031] Figure 5 is a cross-sectional view of the tensioning structure;

[0032] Among them, 1. Machine body; 2. Feeding roller; 3. Human-machine interaction interface; 4. Display screen; 5. Discharging roller; 6. Through hole; 7. Laser engraving structure; 8. Centering structure; 9. Blocking structure; 10. Liftable conveyor belt structure; 11. Photographing structure; 12. Tensioning structure; 13. Workpiece; 701. Fixed frame; 702. Three-way laser engraving machine; 801. Support seat; 802. Slide groove; 803. Slide block; 804. Holding column; 805. First motor; 806. First screw; 901. Electric telescopic rod; 902. Lifting rod; 1001. Electric lifting platform; 1002. Conveyor belt; 1101. L-shaped frame; 1102. CCD camera; 1201. Slide base; 1202. Second motor; 1203. Second screw; 1204. Thread section; 1205. Transmission cylinder; 1206. Connecting rod; 1207. Tensioning pressing plate; 1208. Convex block; 1209. Slide groove; 1210. Lifting cylinder. Detailed implementation manner

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0035] Refer to Figures 1 to 5 , the present invention discloses a through-type laser engraving machine, including:

[0036] Machine body 1, a through hole 6 is opened on the machine body 1, a feeding roller 2 is arranged on one side of the through hole 6, a discharging roller 5 is arranged on the other side of the through hole 6, and a centering structure 8, a blocking structure 9, a liftable conveyor belt structure 10, and a photographing structure 11 are sequentially arranged inside the machine body 1 along the transportation direction of the workpiece 13. A tensioning structure 12 is arranged in the middle of the liftable conveyor belt structure 10, and a laser engraving structure 7 is arranged on the top of the tensioning structure 12;

[0037] A human-machine interaction interface 3 and a display screen 4 are arranged on the side wall of the machine body 1, and the laser engraving structure 7, the centering structure 8, the blocking structure 9, the liftable conveyor belt structure 10, the photographing structure 11, and the tensioning structure 12 are electrically connected to the human-machine interaction interface 3.

[0038] The utility model realizes the automatic clamping function through the clamping structure 8. The automatic clamping system reduces the risk of direct contact between the operator and the laser, improving the safety of the working environment; the continuous conveying function is realized through the liftable conveyor belt structure 10 and the blocking structure 9; the automatic fixing function is realized through the tensioning structure 12. The stable clamping force ensures that the workpiece remains stationary during the laser engraving process, avoiding engraving deviation or unstable quality caused by unstable clamping, and improving the consistency and accuracy of the finished product.

[0039] The utility model reduces manual intervention, improves processing efficiency, reduces labor intensity and human errors, and is suitable for large-scale continuous production.

[0040] In a further optimized solution, the laser engraving structure 7 includes a fixed frame 701, which is fixedly connected to the inside of the machine body 1. A three-way laser engraving machine 702 is provided on the fixed frame 701. The three-way laser engraving machine 702 is vertically corresponding to the workpiece 13 located on the tensioning structure 12.

[0041] The three-way laser engraving machine 702 is electrically connected to the human-machine interface 3.

[0042] The three-way laser engraving machine 702 is an imported original laser, and the selected model is Cohernt-30-10.6. It cooperates with a 3D dynamic focusing system (model: LDS-300), 3D engraving software (model: LM-01), 3D laser control card (model: LM-D30), and 3D dynamic rotating shaft (model: Lvtesiwei LTSVRR060) to jointly realize the laser engraving function.

[0043] In a further optimized solution, the clamping structure 8 includes a support seat 801 fixedly connected to the inside of the through hole 6 near the feed roller 2. A chute 802 is provided on the top surface of the support seat 801. One end of a first screw rod 806 is rotatably connected to the inside of the chute 802. The other end of the first screw rod 806 extends out of the support seat 801 and is axially connected to the output shaft of a first motor 805. The first motor 805 is fixedly connected to the machine body 1.

[0044] The thread directions of the left and right ends of the first screw rod 806 are opposite. Sliding blocks 803 are respectively slidably connected to the outer sides of the left and right sides of the first screw rod 806. A clamping column 804 is fixedly connected to the top surface of the sliding block 803. The clamping column 804 is used to clamp the workpiece 13.

[0045] The first motor 805 is electrically connected to the human-machine interface 3.

[0046] During use, start the first motor 805 to rotate the first screw rod 806, so that the two sliding blocks 803 approach each other to clamp the workpiece 13.

[0047] Further optimization solution, the blocking structure 9 includes an electric telescopic rod 901, the electric telescopic rod 901 is fixedly connected to the inner side of the machine body 1, and a lifting rod 902 is fixedly connected to the telescopic end of the electric telescopic rod 901. The lifting rod 902 is used to block the workpiece 13;

[0048] The electric telescopic rod 901 is electrically connected to the human-machine interaction interface 3.

[0049] When the electric telescopic rod 901 recognizes the workpiece 13, it controls the lifting rod 902 to retract, ensuring that the processing of the next workpiece 13 is carried out after the processing of the previous workpiece 13 is completed.

[0050] Further optimization solution, the liftable conveyor belt structure 10 includes an electric lifting platform 1001. The fixed end of the electric lifting platform 1001 is fixedly connected to the inner side of the machine body 1, and two conveyor belts 1002 are symmetrically and rotatably arranged on the movable end of the electric lifting platform 1001. The conveyor belts 1002 are used to move the workpiece 13 from the blocking structure 9 towards the photographing structure 11;

[0051] The electric lifting platform 1001 and the conveyor belts 1002 are electrically connected to the human-machine interaction interface 3.

[0052] The model selected for the electric lifting platform 1001 is MISUMI TTBU1880T10.

[0053] Further optimization solution, the tensioning structure 12 includes a lifting cylinder 1210. The fixed end of the lifting cylinder 1210 is fixedly connected to the bottom surface inside the machine body 1, and a sliding seat 1201 is fixedly connected to the movable end of the lifting cylinder 1210. The fixed end of a second motor 1202 is fixedly connected to the inside of the sliding seat 1201. The output shaft of the second motor 1202 is axially connected to a second screw rod 1203. A threaded section 1204 is provided on the outer side of the end of the second screw rod 1203 away from the second motor 1202. A transmission cylinder 1205 is slidably fitted on the outer side of the threaded section 1204. One end of a connecting rod 1206 is hinged to the outer side of the transmission cylinder 1205, and the other end of the connecting rod 1206 is hinged to a tensioning pressing plate 1207. The tensioning pressing plate 1207 is located between the two conveyor belts 1002, and the bottom end of the tensioning pressing plate 1207 is slidably connected to the limiting structure. The limiting structure is used to ensure that the tensioning pressing plate 1207 slides on the same plane;

[0054] The lifting cylinder 1210 and the second motor 1202 are electrically connected to the human-machine interaction interface 3.

[0055] When the workpiece 13 is transported to the middle of the conveyor belt 1002, the conveyor belt 1002 descends through the electric lifting platform 1001, and the lifting cylinder 1210 is synchronously started to make the sliding seat 1201 rise until the tensioning pressing plate 1207 falls at the central position of the workpiece 13. The second motor 1202 is started to make the second screw rod 1203 rotate, thereby driving the connecting rod 1206 to open and expanding the tensioning pressing plate 1207 outward to fix the workpiece 13.

[0056] For a further optimized solution, the limiting structure includes a convex block 1208 fixedly connected to the top surface of the sliding seat 1201. A sliding groove 1209 is formed in the convex block 1208, and the tensioning pressing plate 1207 is slidably connected to the inner side of the sliding groove 1209.

[0057] The sliding groove 1209 is used to limit the position of the tensioning pressing plate 1207.

[0058] For a further optimized solution, the photographing structure 11 includes an L-shaped frame 1101 fixedly connected to the inside of the machine body 1. A CCD camera 1102 is fixedly connected to the end of the L-shaped frame 1101. The CCD camera 1102 is used to photograph the workpiece 13 to accurately position the workpiece 13.

[0059] The CCD camera 1102 is electrically connected to the human-machine interaction interface 3 and the display screen 4.

[0060] The photographing structure 11 is a CCD image recognition and positioning system, and the selected model is Hikvision MV-CA060.

[0061] The working process of the present utility model is as follows:

[0062] 1. For products with low precision requirements, the valve hole positioning method is adopted

[0063] a. Place the workpiece 13 (i.e., the hub) on the feeding roller 2, press the start key, and the workpiece 13 flows onto the internal lifting conveyor belt 1002 of the equipment for automatic preliminary positioning.

[0064] b. The conveyor belt 1002 descends, the position of the central hole is fixed by the tensioning pressing plate 1207, and the lower part is adjusted by the hub DD motor. While the turntable rotates, the CCD camera 1102 scans the hub to identify the position of the valve hole and accurately position the hub.

[0065] c. After the hub is accurately positioned, the laser engraves 3D according to the program.

[0066] d. If the scanning height of the Z-axis exceeds ±20 mm, then it is necessary to adjust the laser head DD motor and the Y / Z-axis servo module to adjust the incident angle of the laser and the position of the hub for 3D engraving.

[0067] e. After the laser engraving is completed, a completion signal is sent, and the hub flows onto the discharging roller 5 for discharging.

[0068] f. Automatically cycle to the first step.

[0069] 2. For products with high precision requirements, the contour positioning method is adopted

[0070] a. Place the workpiece 13 (i.e., the hub) on the feeding roller 2, press the start key, and the workpiece 13 flows onto the internal lifting conveyor belt 1002 of the equipment for automatic preliminary positioning;

[0071] b. The conveyor belt 1002 descends, the center hole position is tightened and fixed by the expansion sleeve, and below, through the hub DD motor, the turntable rotates while the high-precision positioning CCD above the hub identifies the contour features of the window and grabs the contour shape of the window where the valve hole is located, and rotates a specific angle according to the grabbed contour shape;

[0072] c. After the hub is accurately positioned, the laser engraves in 3D according to the program;

[0073] d. If the scanning height of the Z-axis exceeds ±20 mm, then it is necessary to adjust the incident angle of the laser head DD motor and the Y / Z-axis servo module to adjust the position of the laser and the hub for 3D engraving.

[0074] e. After the laser engraving is completed, a completion signal is sent, and the hub flows onto the discharging production line for discharging.

[0075] f. Automatically loop back to the first step.

[0076] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0077] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A through-type laser engraving machine, characterized in that: include: A machine body (1), wherein a through hole (6) is provided on the machine body (1), a feed roller (2) is provided on one side of the through hole (6), and a discharge roller (5) is provided on the other side of the through hole (6); a centering structure (8), a blocking structure (9), a liftable conveyor belt structure (10), and a photographing structure (11) are provided in sequence inside the machine body (1) along the transport direction of the workpiece (13); a tensioning structure (12) is provided in the middle of the liftable conveyor belt structure (10), and a laser engraving structure (7) is provided on the top of the tensioning structure (12); A human-machine interaction interface (3) and a display screen (4) are provided on the side wall of the machine body (1); and the laser engraving structure (7), the centering structure (8), the blocking structure (9), the liftable conveyor belt structure (10), the camera structure (11), and the tensioning structure (12) are electrically connected to the human-machine interaction interface (3).

2. A through-type laser engraving machine according to claim 1, characterized in that: The laser engraving structure (7) comprises a fixing frame (701), the fixing frame (701) being fixedly connected to the inner side of the machine body (1), a three-dimensional laser engraving machine (702) being arranged on the fixing frame (701), and the three-dimensional laser engraving machine (702) being arranged vertically corresponding to the workpiece (13) located on the tensioning structure (12); The three-way laser engraving machine (702) is electrically connected to the human-machine interaction interface (3).

3. The through-type laser engraving machine according to claim 1, characterized in that: The centering structure (8) comprises a support seat (801) fixedly connected to the through hole (6) on one side close to the feed roller (2); a slide groove (802) is provided on the top surface of the support seat (801); one end of a first screw rod (806) is rotatably connected to the inner side of the slide groove (802); the other end of the first screw rod (806) extends out of the support seat (801) and is axially connected to the output shaft of a first motor (805); and the first motor (805) is fixedly connected to the machine body (1); The threads of the left and right ends of the first screw rod (806) are rotated in opposite directions. The left and right outer sides of the first screw rod (806) are slidably connected to sliders (803) respectively. The top surface of the slider (803) is fixedly connected to a holding column (804). The holding column (804) is used to clamp the workpiece (13). The first motor (805) is electrically connected to the human-machine interaction interface (3).

4. The through-type laser engraving machine according to claim 1, characterized in that: The blocking structure (9) comprises an electric telescopic rod (901), the electric telescopic rod (901) is fixedly connected to the inner side of the machine body (1), and a lifting rod (902) is fixedly connected to the telescopic end of the electric telescopic rod (901), and the lifting rod (902) is used to block the workpiece (13); The electric telescopic rod (901) is electrically connected to the human-machine interaction interface (3).

5. The through-type laser engraving machine according to claim 1, characterized in that: The liftable conveyor belt structure (10) comprises an electric lift platform (1001), the fixed end of the electric lift platform (1001) is fixedly connected to the inner side of the machine body (1), and two conveyor belts (1002) are symmetrically rotatably arranged on the movable end of the electric lift platform (1001), and the conveyor belts (1002) are used to move the workpiece (13) from the blocking structure (9) to the photographing structure (11); The electric lifting platform (1001), the conveyor belt (1002) and the human-machine interaction interface (3) are electrically connected.

6. The through-type laser engraving machine according to claim 5, characterized in that: The tensioning structure (12) comprises a lifting cylinder (1210), the fixed end of the lifting cylinder (1210) is fixedly connected to the bottom surface inside the machine body (1), the movable end of the lifting cylinder (1210) is fixedly connected to a slide seat (1201), the inner side of the slide seat (1201) is fixedly connected to the fixed end of a second motor (1202), the output shaft of the second motor (1202) is connected to a second screw rod (1203), and the outer side of the end of the second screw rod (1203) away from the second motor (1202) is provided with a thread The threaded section (1204) is slidably matched with a transmission cylinder (1205) on the outer side of the transmission cylinder (1205), one end of a connecting rod (1206) is hinged on the outer side of the transmission cylinder (1205), and the other end of the connecting rod (1206) is hinged to a tensioning plate (1207), and the tensioning plate (1207) is located between the two conveyor belts (1002), and the bottom end of the tensioning plate (1207) is slidably connected to a limiting structure, and the limiting structure is used to ensure that the tensioning plate (1207) slides on the same plane; The lifting cylinder (1210), the second motor (1202) and the human-machine interaction interface (3) are electrically connected.

7. The through-type laser engraving machine according to claim 6, characterized in that: The limiting structure comprises a protrusion (1208) fixedly connected to the top surface of the slide seat (1201), a slide groove (1209) is provided on the protrusion (1208), and the tensioning pressure plate (1207) is slidably connected to the inner side of the slide groove (1209).

8. The through-type laser engraving machine according to claim 1, characterized in that: The photographing structure (11) comprises an L-shaped frame (1101) fixedly connected to the inner side of the machine body (1), a CCD camera (1102) being fixedly connected to the end of the L-shaped frame (1101), and the CCD camera (1102) is used to photograph the workpiece (13); The CCD camera (1102) is electrically connected to the human-machine interaction interface (3) and the display screen (4).

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