High-precision automatic laser marking equipment and working method
By designing a high-precision automated laser marking device for flexible empty bottles, the inflatable mechanism increases the internal pressure of the empty bottles and forms a rigid structure, the problem of difficulty in stably clamping of traditional equipment is solved, and the marking quality and accuracy are improved.
Patent Information
- Application Number
- CN202510627943.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2025-06-17
AI Technical Summary
Traditional laser marking equipment is difficult to stably clamp flexible empty bottles, resulting in excessive or insufficient clamping force, resulting in misalignment of marking positions, blurred lines, and different depths, which seriously affect the quality of marking.
A high-precision automated laser marking equipment is designed, using components such as chain plate conveyor, gantry, first cylinder, inflation mechanism and laser marking device. The internal pressure of the flexible empty bottle is increased through the inflation mechanism driven by the first cylinder, forming a relatively rigid cylindrical structure to ensure the accuracy of laser marking.
It effectively eliminates the impact of elastic deformation of flexible empty bottles on laser marking, improves marking quality and accuracy, is compatible with empty bottles of different heights and bottle mouth sizes, and does not require frequent tooling changes, which improves the practicality of the equipment.
Smart Images
Figure CN120155668A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of laser marking, and particularly relates to a high-precision automatic laser marking device and working method for flexible empty bottles. Background Art
[0002] In the fields of modern industrial production and product identification, laser marking technology has been widely used due to its many advantages such as high precision, permanence, and non-contact processing. Laser marking can form clear and wear-resistant identification patterns or text information on the surfaces of various materials, providing reliable solutions for product traceability, anti-counterfeiting, and brand identification. However, when laser marking low-hardness and high-elastic soft plastic empty bottles, such as polyethylene, polypropylene, or thin-walled bottles, traditional fixing methods are difficult to stably clamp the bottle body. If the clamping force is too large, it is easy to cause deformation of the bottle body. If the clamping force is insufficient, the bottle body may have slight shaking or displacement during the laser processing, resulting in problems such as deviation of the marking position, blurred lines, and uneven depths, seriously affecting the marking quality. There is an urgent need for a high-precision automatic laser marking device for flexible empty bottles. Summary of the Invention
[0003] The main purpose of the present invention is to provide a high-precision automatic laser marking device to solve the problems in the prior art that traditional fixing methods are difficult to stably clamp the bottle body. If the clamping force is too large, it is easy to cause deformation of the bottle body. If the clamping force is insufficient, the bottle body may have slight shaking or displacement during the laser processing, resulting in problems such as deviation of the marking position, blurred lines, and uneven depths, seriously affecting the marking quality.
[0004] To achieve the above purpose, the present invention provides a high-precision automatic laser marking device suitable for marking flexible empty bottles, including a chain plate conveyor, and further including: a gantry, a first cylinder, an inflation mechanism, and a laser marker; The gantry is fixedly installed on the frame of the chain plate conveyor; The cylinder block of the first cylinder is fixedly connected to the top of the gantry; The inflation mechanism includes a columnar shell, a spring, and a delivery pipe; The top end of the vertically arranged columnar shell is coaxially docked with the piston rod of the first cylinder, and the bottom end coaxially penetrates through and opens a telescopic hole. The columnar shell is connected and provided with an intake pipe; The top end of the delivery pipe passes through the telescopic hole and is coaxially docked with a limiting ring, and the bottom end is coaxially docked with a conical block. The conical block coaxially penetrates through and opens an inflation hole, and the closed end can be inserted into the bottle mouth of the flexible empty bottle through the first cylinder; The inflation hole is communicated with the columnar shell through the delivery pipe; The spring is coaxially sleeved inside the columnar shell, and both ends respectively abut against the limiting ring and the inner top wall of the columnar shell; The laser marking machine is fixedly connected to the columnar shell through a connecting frame.
[0005] Preferably, a plurality of receiving rods are fixedly arranged on the circumferential wall of the top of the limiting ring, and a sealing ring is fixedly arranged at one end of the plurality of receiving rods away from the limiting ring. The sealing ring is located inside the columnar shell and is coaxially arranged with the columnar shell. When the spring is in a free state, the sealing ring blocks the outlet end of the air inlet pipe. When the spring is in a compressed state, the sealing ring is misaligned with the outlet end of the air inlet pipe.
[0006] Preferably, the connecting frame includes an L-shaped rod and a mounting plate. One end of the L-shaped plate is fixedly connected to the columnar shell, and the other end is fixedly connected to the mounting plate. The laser marking machine is mounted on the mounting plate.
[0007] Preferably, the gantry forms a marking station at the position of the chain conveyor. The high-precision automatic laser marking equipment further includes a rotating tooling, which is arranged at the marking station and includes a fixed base frame and a moving base frame. Two rotating wheels are arranged side by side and vertically at the opposite ends of the fixed base frame and the moving base frame. The four rotating wheels are arranged in a matrix and are located directly above the belt of the chain conveyor. A horizontal rod is fixedly arranged at one end of the fixed base frame away from the rotating wheel, and one end of the horizontal rod away from the fixed base frame is fixedly connected to the gantry. A slide rail is fixedly arranged at one end of the moving base frame away from the rotating wheel. A slideway is fixedly arranged on the gantry along the length direction of the slide rail. One end of the slide rail away from the moving base frame passes through and is slidably arranged in the slideway, and a second cylinder is fixedly arranged. The cylinder block of the second cylinder is fixedly connected to the gantry.
[0008] Preferably, both the fixed base frame and the moving base frame include a main board and two U-shaped plates. The two U-shaped plates are fixedly arranged side by side on one side wall of the main board along the conveying direction of the belt of the chain conveyor. The other side wall of the main board is fixedly connected to the slide rail or the horizontal rod. A rotating shaft is vertically rotatably arranged at the open end of each U-shaped plate, and the rotating wheel is fixedly sleeved on the rotating shaft.
[0009] Preferably, a driven pulley is fixedly arranged at one end of any rotating shaft located on the moving base frame. A driving shaft is rotatably arranged on the U-shaped plate. A spur gear and a driving pulley are fixedly sleeved on the driving shaft. The driven pulley and the driving pulley are sleeved with a belt. A bearing plate is fixedly arranged on each chain plate of the chain conveyor. A rack is fixedly arranged on the bearing plate. A plurality of racks are arranged along the conveying direction of the chain conveyor and can be meshed with the spur gear through the second cylinder.
[0010] Preferably, two guiding strips are arranged side by side along the conveying direction directly above the chain plates of the chain conveyor. Each guiding strip is fixedly arranged on the frame of the chain conveyor through a truss. The space between the two guiding strips forms a conveying space, and a notch is opened at the notch. The notch is located at the marking station, and the flexible empty bottles are conveyed in the conveying space.
[0011] Preferably, it further includes a data terminal, and the first cylinder, the second cylinder, the laser marker and the chain conveyor are all in communication with the data terminal.
[0012] The beneficial effects of the above solution are as follows: The flexible empty bottle is placed on the chain conveyor with the opening facing upwards, and the chain conveyor drives the flexible empty bottle to move towards the marking station under the gantry. When the empty bottle reaches the designated position, the empty bottle accurately stops at the marking station. At this time, the bottle body is in a natural collapsed or slightly deformed state due to the elasticity of the material. The first cylinder works, and the piston rod of the first cylinder drives the entire inflation mechanism to move vertically downward. The closing end of the conical block contacts the bottle mouth and is inserted into the bottle mouth. The air inlet pipe injects compressed gas into the delivery pipe through the cylindrical shell, and the gas is injected into the bottle body through the inflation hole. Continuous inflation increases the internal pressure of the flexible empty bottle, and the originally collapsed bottle wall is expanded by the air pressure, forming a relatively rigid cylindrical structure. This process eliminates the influence of the elastic deformation of the bottle body on laser marking. When the bottle body is relatively rigidified, the laser marker works and performs marking operations according to the preset pattern or text parameters. In addition, during the inflation process, the piston rod of the first cylinder continues to press down, so that the laser marker follows and descends to the marking height through the connecting frame. The spring is further compressed, and the cooperation structure of the spring and the limit ring allows the delivery pipe to adaptively expand and contract in the cylindrical shell, compatible with empty bottles of different heights and bottle mouth sizes, without the need to frequently replace tooling, improving the practicability of the equipment. After marking is completed, the air inlet pipe stops supplying gas. The piston rod of the first cylinder retracts, driving the inflation mechanism to rise, and smoothly moves out of the station with the chain conveyor to enter the next process.
[0013] A working method of a high-precision automatic laser marking device, the steps are as follows: S1: The flexible empty bottle is conveyed to the marking station through the chain conveyor and enters the marking station in an upright posture under the constraint of the guiding strip; S2: When the bottle body reaches the marking station, the data terminal triggers the second cylinder to act, pushing the moving base frame to move along the slide rail towards the fixed base frame, so that the four groups of rotating wheels form a rectangular clamping array to flexibly clamp the part below the neck of the bottle body; S3: The first cylinder drives the piston rod to extend, driving the cylindrical shell to move vertically downward, so that the conical block is inserted into the bottle mouth through the closing end. At this time, the spring is in a compressed state, and the sealing ring is misaligned with the outlet end of the air inlet pipe. Compressed air enters the bottle through the delivery pipe and the inflation hole to form a positive pressure state; S4: The chain conveyor continues to operate, and the rack on the bearing plate moves with the chain to the position meshing with the spur gear of the driving shaft, driving the driven pulley to rotate through belt transmission, and then driving the rotating wheel group to drive the bottle body to perform a constant-speed rotation motion; S5: The data terminal synchronously starts laser emission and performs circumferential continuous marking operations on the bottle body surface; S6: After the marking is completed, the first cylinder is reset to make the conical block separate from the bottle mouth, and the spring returns to a free state to drive the blocking ring to close the air inlet pipe; S7: The second cylinder drives the mobile base to reset, releases the wheel clamping, and the marked bottle is conveyed out of the marking station through the chain conveyor. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0015] Figure 1 is a schematic diagram of a three-dimensional structure from a first viewing angle of the present invention; Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of the A area in the middle; Figure 3 is a schematic diagram of a second viewing angle stereoscopic structure of the present invention; Figure 4 It is a front structural schematic diagram of the present invention; Figure 5 It is a partial three-dimensional structural schematic diagram of the present invention; Figure 6 It is a communication schematic diagram of the data terminal, the first cylinder, the second cylinder, the laser marker and the chain conveyor of the present invention.
[0016] Description of Reference Numerals 1. Flexible empty bottle; 2. Chain conveyor; 21. Loading plate; 22. Rack; 3. Door frame; 31. First cylinder; 4. Data terminal; 5. Inflating mechanism; 51. Column shell; 52. Spring; 53. Delivery pipe; 510. Telescopic hole; 54. Inlet pipe; 57. Receiver rod; 58. Blocking ring; 55. Limiting ring; 56. Conical block; 560. Inflating hole; 6. Laser marker; 61. Marking station; 7. Connecting frame; 71. L-shaped rod ; 72. Mounting plate; 8. Rotating tooling; 81. Fixed base frame; 82. Mobile base frame; 83. Rotating wheel; 84. Horizontal rod; 85. Slide rail; 86. Slideway; 87. Second cylinder; 801. Main board; 802. U-shaped plate; 803. Rotating shaft; 820. Driven pulley; 821. Driving shaft; 822. Spur gear; 823. Driving pulley; 824. Belt; 9. Guide strip; 90. Transmission space; 91. Truss; 93. Notch. DETAILED DESCRIPTION
[0017] The technical scheme in the embodiment of the present invention is described clearly and completely below in conjunction with the accompanying drawings in the embodiment of the present invention. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
[0018] First embodiment: like Figures 1-5 As shown, this embodiment provides a high-precision automatic laser marking device suitable for marking a flexible empty bottle 1, including a chain plate conveyor 2, a door frame 3, a first cylinder 31, an air charging mechanism 5 and a laser marker 6. The door frame 3 is fixedly mounted on the frame of the chain plate conveyor 2. The cylinder seat of the first cylinder 31 is fixedly connected to the top of the door frame 3. Figure 2 , Figure 5 As shown, the inflation mechanism 5 includes a cylindrical shell 51, a spring 52 and a delivery pipe 53. The top of the vertically arranged cylindrical shell 51 is coaxially docked with the piston rod of the first cylinder 31, and the bottom end of the cylindrical shell 51 is coaxially penetrated to open a telescopic hole 510, and the cylindrical shell 51 is connected to the air intake pipe 54. The air intake pipe 54 is connected to the air supply device through a hose, and the air supply device adopts the existing technology, so it is not described in detail. Among them, the air supply device can provide compressed gas, the top of the delivery pipe 53 passes through the telescopic hole 510 and coaxially docks with the limit ring 55, and the bottom end of the delivery pipe 53 is coaxially docked with the conical block 56, the conical block 56 is coaxially penetrated to open the inflation hole 560, and the closing end of the conical block 56 can be inserted into the bottle mouth of the flexible empty bottle 1 through the first cylinder 31. The inflation hole 560 is connected to the cylindrical shell 51 through the delivery pipe 53. The spring 52 is coaxially sleeved in the cylindrical shell 51, and the two ends of the spring 52 are respectively against the limit ring 55 and the inner top wall of the cylindrical shell 51. Figure 2 As shown, the laser marker 6 is fixedly connected to the columnar shell 51 through a connecting frame 7. The connecting frame 7 includes an L-shaped rod 71 and a mounting plate 72. One end of the L-shaped plate is fixedly connected to the columnar shell 51, and the other end is fixedly connected to the mounting plate 72. The laser marker 6 is mounted on the mounting plate 72. The laser marker 6 adopts the existing technology, so it will not be described in detail. Models such as IPG-YLP series, Han's Laser H-FL series, Diamond E series, and TRUMPF TruMark6230 can be selected.
[0019] The flexible empty bottle 1 is placed vertically on the chain conveyor 2 with its opening facing upwards. The chain conveyor 2 drives the flexible empty bottle 1 to move towards the marking station 61 below the gantry 3. When the empty bottle reaches the designated position, it accurately stops at the marking station. At this time, due to the elasticity of the bottle body material, the bottle body is in a natural collapsed or slightly deformed state. The first cylinder 31 works, and the piston rod of the first cylinder 31 drives the inflation mechanism 5 to move vertically downward as a whole. The closed end of the conical block 56 contacts the bottle mouth and is inserted into the bottle mouth. The air inlet pipe 54 injects compressed gas into the delivery pipe 53 through the cylindrical shell 51, and the gas is injected into the bottle body through the inflation hole 560. Continuous inflation increases the internal pressure of the flexible empty bottle 1, and the originally collapsed bottle wall is pushed open by the air pressure, forming a relatively rigid cylindrical structure. This process eliminates the influence of the elastic deformation of the bottle body on laser marking. When the bottle body is relatively rigidified, the laser marker 6 works and performs the marking operation according to the preset pattern or text parameters. In addition, during the inflation process, the piston rod of the first cylinder 31 continues to press down, so that the laser marker 6 follows and descends to the marking height through the connecting frame 7. Among them, the spring 52 is further compressed. The cooperation structure of the spring 52 and the limit ring 55 allows the delivery pipe 53 to adaptively expand and contract in the cylindrical shell 51, compatible with empty bottles of different heights and bottle mouth sizes, without the need to frequently replace the tooling, improving the practicality of the equipment. After the marking is completed, the air inlet pipe 54 stops supplying gas. The piston rod of the first cylinder 31 retracts, driving the inflation mechanism 5 to rise, and smoothly moves out of the marking station with the chain conveyor 2 and enters the next process.
[0020] Second Embodiment: As Figure 5 shown, a plurality of receiving rods 57 are fixedly arranged on the circumferential wall of the top of the limit ring 55. One end of the plurality of receiving rods 57 away from the limit ring 55 is fixedly provided with a blocking ring 58. The blocking ring 58 is located inside the cylindrical shell 51 and is coaxially arranged with it. When the spring 52 is in a free state, the blocking ring 58 blocks the outlet end of the air inlet pipe 54. When the spring 52 is in a compressed state, the blocking ring 58 is misaligned with the outlet end of the air inlet pipe 54. The blocking ring 58 blocks the outlet end of the air inlet pipe 54, thus preventing the gas blown out from the inflation hole 560 from blowing down the flexible empty bottle 1. When the inflation mechanism 5 is not pressed down, the spring 52 is in a free state, and the blocking ring 58 is fixed to the limit ring 55 through the receiving rod 57. Further, the first cylinder 31 drives the cylindrical shell 51 to move downward. After the conical block 56 is inserted into the bottle mouth, the spring 52 is gradually compressed due to the continuous upward pressure of the cylindrical shell 51. At this time, the limit ring 55 moves upward with the compression of the spring 52, driving the blocking ring 58 to move upward synchronously through the receiving rod 57, so that the blocking ring 58 is separated from the outlet end of the air inlet pipe 54, and the air flow path is opened. The blocking ring 58 blocks the outlet of the air inlet pipe 54 during the non-inflation stage, completely blocking the reverse gas flow path, preventing the residual gas ejected from the inflation hole 560 from blowing the flexible empty bottle 1 during exhaust, and ensuring the position stability of the bottle body before and after marking. Third Embodiment: As Figures 2-4As shown, a gantry 3 forms a marking station 61 at the position of the chain conveyor 2. The high-precision automated laser marking device further includes a rotary tooling 8. As Figure 2 shown, the rotary tooling 8 is arranged at the marking station 61. The rotary tooling 8 includes a fixed base frame 81 and a movable base frame 82. Two rotating wheels 83 are arranged side by side and vertically at one end of the fixed base frame 81 and the movable base frame 82 that are oppositely arranged. The four rotating wheels 83 are arranged in a matrix, and the four rotating wheels 83 are located directly above the belt body of the chain conveyor 2 (the belt body refers to the multiple chain plates of the multiple chain conveyors 2). A horizontal rod 84 is fixedly arranged at one end of the fixed base frame 81 away from the rotating wheel 83, and the end of the horizontal rod 84 away from the fixed base frame 81 is fixedly connected to the gantry 3. A slide rail 85 is fixedly arranged at one end of the movable base frame 82 away from the rotating wheel 83. A slideway 86 is fixedly arranged on the gantry 3 along the length direction of the slide rail 85. The end of the slide rail 85 away from the movable base frame 82 passes through the slideway 86 and is fixedly provided with a second cylinder 87. The piston rod of the second cylinder is fixedly connected to one end of the slide rail through a synchronous plate (not marked), and the cylinder block of the second cylinder 87 is fixedly connected to the gantry 3. Both the fixed base frame 81 and the movable base frame 82 include a main board 801 and two U-shaped plates 802. The two U-shaped plates 802 are fixedly arranged side by side on one side wall of the main board 801 along the conveying direction of the belt body of the chain conveyor 2. The other side wall of the main board 801 is fixedly connected to the slide rail 85 or the horizontal rod 84. A rotating shaft 803 is vertically rotatably arranged at the open end of each U-shaped plate 802, and the rotating wheel 83 is fixedly sleeved on the rotating shaft 803. When the bottle body is conveyed to the marking station 61, the second cylinder 87 is started, and the second cylinder 87 pushes the movable base frame 82 to move along the slide rail 85 towards the fixed base frame 81, so that the four groups of rotating wheels 83 form a rectangular clamping array to flexibly clamp the part below the neck of the bottle body. As Figure 3 shown, a driven pulley 820 is fixedly arranged at one end of any rotating shaft 803 located on the movable base frame 82. A driving shaft 821 is rotatably arranged on the U-shaped plate 802. A spur gear 822 and a driving pulley 823 are fixedly sleeved on the driving shaft 821. The driven pulley 820 and the driving pulley 823 are sleeved with a belt 824. A bearing plate 21 is fixedly arranged on each chain plate of the chain conveyor 2, and a rack 22 is fixedly arranged on the bearing plate 21. The multiple racks 22 are arranged along the conveying direction of the chain conveyor 2, and the multiple racks 22 can be engaged with the spur gear 822 through the second cylinder 87.
[0021] The flexible empty bottle 1 moves along with the chain plates of the chain plate conveyor 2 to the marking station 61. At this time, the bottle body is in an uninflated state with the bottle mouth facing upwards. The bearing plate 21 on the chain plate is fixedly provided with a rack 22 and moves synchronously with the conveying chain. When the bottle body reaches the preset position, the second cylinder 87 is activated to push the moving base frame 82 to translate along the slide rail 85 towards the fixed base frame 81. Four groups of rotating wheels 83 on the moving base frame 82 and the fixed base frame 81 form a rectangular clamping array to perform flexible clamping on the bottle body from four directions below the bottle neck. The surface of the rotating wheel 83 is made of rubber material to ensure uniform distribution of the clamping force and avoid deformation of the bottle body caused by excessive local pressure. The first cylinder 31 drives the inflation mechanism 5 to descend, the conical block 56 is inserted into the bottle mouth, the sealing ring 58 opens the air inlet pipe 54, and compressed gas is injected into the bottle body. The bottle body expands into a relatively rigid cylinder under the action of air pressure, providing a stable base for subsequent rotary marking. As the chain plate continues to move, the rack 22 on the bearing plate 21 meshes with the spur gear 822 on the U-shaped plate 802 of the moving base frame 82, and the drive shaft 821 rotates. The drive shaft 821 drives two groups of rotating shafts 803 to rotate synchronously through the belt 824, and the rotating wheel 83 rotates accordingly, thereby driving the bottle body to rotate around its axis. Through the linkage between the rotating tooling 8 and the chain plates of the chain plate conveyor 2, continuous rotation of the bottle body is achieved, and the flexible empty bottle 1 can complete 360° circular marking, improving production efficiency. It should be noted here that when the flexible empty bottle 1 rotates around its axis, the four groups of rotating wheels 83, the conical block 56, the limiting ring 55, and the conveying pipe all rotate synchronously with the flexible empty bottle 1, the chain plate conveyor 2 does not need to stop driving, and the columnar shell 51 does not follow the conical block 56 to perform a rotating action. Among them, the driven pulley and the driving pulley are both belt pulleys.
[0022] As Figure 1 shown, two guiding bars 9 are arranged side by side along the conveying direction directly above the chain plates of the chain plate conveyor 2. Each guiding bar 9 is fixedly arranged on the frame of the chain plate conveyor 2 through a truss 91. The space between the two guiding bars 9 forms a conveying space 90, and the two guiding bars 9 are provided with notch parts 93. The notch parts 93 are located at the marking station 61, and the flexible empty bottle 1 is conveyed in the conveying space 90.
[0023] The high-precision automatic laser marking device further includes a data terminal 4. The first cylinder 31, the second cylinder 87, the laser marker 6, and the chain plate conveyor 2 are all in mutual communication with the data terminal 4. The data terminal 4 adopts the existing technology and will not be elaborated too much. A PC computer can be selected. Through such mutual communication connection, a laser marking intelligent heat treatment production line is realized.
[0024] A working method of a high-precision automatic laser marking device comprises the steps of: S1: The flexible empty bottle 1 is conveyed to the marking station 61 through the chain plate conveyor 2 and enters the marking station 90 while maintaining an upright posture under the constraint of the guiding bar 9; S2: When the bottle body reaches the marking station 61, the data terminal 4 sends a working signal to the second cylinder 87. The second cylinder drives the moving base 82 to move along the slide rail 85 towards the fixed base 81, so that the four groups of rotating wheels 83 form a rectangular clamping array to flexibly clamp the part below the neck of the bottle body. S3: The first cylinder 31 drives the piston rod to extend. The first cylinder 31 drives the columnar shell 51 to move vertically downward, so that the conical block 56 is inserted into the bottle mouth through the closing end. At this time, the spring 52 is in a compressed state, and the sealing ring 58 is misaligned with the outlet end of the air inlet pipe 54. Compressed air enters the bottle through the delivery pipe 53 and the inflation hole 560 to form a positive pressure state. S4: The chain plate conveyor 2 continues to operate. The rack 22 on the carrier plate 21 moves with the chain plate to the meshing position with the spur gear 822 of the drive shaft 821, and drives the driven pulley 820 to rotate through the belt 824 transmission. Furthermore, the rotating wheel 83 group drives the bottle body to perform a constant-speed rotation motion. S5: The data terminal 4 synchronously starts laser emission to perform circumferential continuous marking operation on the bottle body surface. S6: After the marking is completed, the first cylinder 31 resets to make the conical block 56 disengage from the bottle mouth. The spring 52 returns to its free state and drives the sealing ring 58 to close the air inlet pipe 54. S7: The second cylinder 87 drives the moving base 82 to reset, releases the clamping of the rotating wheel 83, and the marked bottle body is sent out of the marking station 61 through the chain plate conveyor 2.
[0025] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all 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.
Claims
1. A high-precision automated laser marking device suitable for marking flexible empty bottles, including a chain conveyor, characterized in that: Also includes: A gantry, wherein the gantry is fixedly mounted on a frame of the chain conveyor; A first cylinder, wherein a cylinder seat of the first cylinder is fixedly connected to the top of the mast; An inflation mechanism, including a cylindrical shell, a spring and a delivery tube; The top end of the vertically arranged cylindrical shell is coaxially connected to the piston rod of the first cylinder, and the bottom end is coaxially penetrated to form a telescopic hole, and the cylindrical shell is connected to the air intake pipe; The top end of the delivery pipe passes through the telescopic hole and is coaxially connected to the limiting ring in the cylindrical shell, and the bottom end is coaxially connected to the conical block, the conical block is coaxially penetrated to open the inflation hole, and the closing end can be inserted into the bottle mouth of the flexible empty bottle through the first cylinder; The inflation hole is connected to the cylindrical shell through the delivery pipe; The spring is coaxially sleeved in the cylindrical shell, and two ends of the spring are respectively against the limit ring and the inner top wall of the cylindrical shell; A laser marker is fixedly connected to the columnar shell via a connecting frame.
2. The high-precision automated laser marking equipment according to claim 1, characterized in that: A plurality of receiving rods are fixedly arranged on the circumference of the top wall of the limiting ring, and a sealing ring is fixedly arranged on one end of the plurality of receiving rods away from the limiting ring. The sealing ring is located in the cylindrical shell, and the two are coaxially arranged; The spring is in a free state, so that the blocking ring blocks the outlet end of the air inlet pipe; The spring is in a compressed state, so that the sealing ring and the outlet end of the air inlet pipe are misaligned.
3. The high-precision automated laser marking equipment according to claim 1, characterized in that: The connecting frame includes an L-shaped rod and a mounting plate, one end of the L-shaped plate is fixedly connected to the columnar shell, and the other end is fixedly connected to the mounting plate, and the laser marker is mounted on the mounting plate.
4. The high-precision automated laser marking equipment according to claim 2, characterized in that: The gantry forms a marking station at the position of the chain conveyor; The high-precision automated laser marking equipment further includes a rotary tooling, which is arranged at the marking station and includes a fixed base frame and a mobile base frame, two rotating wheels are vertically arranged side by side at opposite ends of the fixed base frame and the mobile base frame, and the four rotating wheels are arranged in a matrix and are located directly above the belt body of the chain conveyor; A horizontal rod is fixedly arranged at one end of the fixed base frame away from the rotating wheel, and one end of the horizontal rod away from the fixed base frame is fixedly connected to the door frame; A slide rail is fixedly arranged at one end of the movable base away from the rotating wheel, a slideway is fixedly arranged on the portal frame along the length direction of the slide rail, a second cylinder is fixedly arranged through the slideway at one end of the slide rail away from the movable base, and a cylinder seat of the second cylinder is fixedly connected to the portal frame.
5. The high-precision automated laser marking equipment according to claim 4, characterized in that: The fixed base frame and the movable base frame both include a main board and two U-shaped plates. The two U-shaped plates are fixed side by side on one side wall of the main board along the belt transmission direction of the chain conveyor. The other side wall of the main board is fixedly connected to the slide rail or the horizontal rod. A rotating shaft is set at the open end of each U-shaped plate for vertical rotation, and the rotating wheel is fixedly sleeved on the rotating shaft.
6. The high-precision automated laser marking equipment according to claim 5, characterized in that: A driven pulley is fixedly arranged at one end of any of the rotating shafts on the mobile base frame, a driving shaft is rotatably arranged on the U-shaped plate, a spur gear and a driving pulley are fixedly sleeved on the driving shaft, and a belt is alternately sleeved on the driven pulley and the driving pulley; A bearing plate is fixedly arranged on each chain plate of the chain conveyor, and a rack is fixedly arranged on the bearing plate. A plurality of the racks are arranged along the conveying direction of the chain conveyor and can be meshed with the spur gear through the second cylinder.
7. The high-precision automated laser marking equipment according to claim 4, characterized in that: Two guide bars are arranged side by side along the conveying direction directly above the chain of the chain conveyor, and each guide bar is fixed to the frame of the chain conveyor through a truss. The space between the two guide bars forms a conveying space, and a notch is opened. The notch is located at the marking station, and the flexible empty bottles are conveyed in the conveying space.
8. The high-precision automated laser marking equipment according to claim 4, characterized in that: It also includes a data terminal, and the first cylinder, the second cylinder, the laser marker and the chain conveyor can communicate with the data terminal.
9. A working method of a high-precision automated laser marking device, applied to the high-precision automated laser marking device according to any one of claims 1 to 8, characterized in that: The steps are: S1: The flexible empty bottle is conveyed to the marking station by the chain conveyor, and enters the marking station in an upright position under the constraint of the guide bar; S2: When the bottle arrives at the marking station, the data terminal sends a working signal to the second cylinder, and the second cylinder pushes the mobile base frame to move along the slide rail toward the fixed base frame, so that the four sets of rotating wheels form a rectangular clamping array to flexibly clamp the part below the neck of the bottle; S3: The first cylinder drives the piston rod to extend, driving the columnar shell to move vertically downward, so that the conical block is inserted into the bottle mouth through the closing end. At this time, the spring is in a compressed state, the sealing ring is misaligned with the outlet end of the air inlet pipe, and the compressed air enters the bottle through the delivery pipe and the inflation hole to form a positive pressure state; S4: The chain conveyor keeps running, and the rack on the load-bearing plate moves with the chain to the meshing position with the spur gear of the driving shaft, and drives the driven pulley to rotate through the belt transmission, so that the rotating wheel group drives the bottle body to rotate at a constant speed; S5: The data terminal starts the laser emission synchronously, and the laser marker performs continuous marking operation on the bottle surface; S6: After the marking is completed, the first cylinder is reset to make the conical block separate from the bottle mouth, and the spring returns to a free state to drive the blocking ring to close the air inlet pipe; S7: The second cylinder drives the mobile base to reset, releases the wheel clamping, and the marked bottle is conveyed out of the marking station through the chain conveyor.