A laser marking machine for precise material discharge

Abstract

The utility model relates to a kind of laser marking machines of accurate discharging. Including support frame, conveying device for conveying material, positioning mechanism for accurately positioning material position, laser marking instrument for marking material and the bending support seat being arranged in conveying device top side;Conveying device is set in support frame top;Positioning mechanism is set in conveying device top other side;Laser marking instrument is set in bending support seat top end, and laser marking instrument is located just above positioning mechanism.The technical problem of technical problem, such as the lack of dynamic positioning accuracy of material, mechanical vibration interference is difficult to suppress and the lack of self-adapting ability of pressing mechanism in the laser marking equipment in prior art scheme during marking process.

Description

Technical Field

[0001] This utility model relates to the field of laser marking machines, and in particular to a laser marking machine for precise material feeding. Background Technology

[0002] Laser marking technology plays a crucial role in modern manufacturing for product identification, especially in fields such as precision electronics, medical devices, and automotive parts, where the precision and consistency of marking positions are extremely important. However, existing laser marking equipment faces several technical bottlenecks in continuous production, severely restricting production efficiency and product quality:

[0003] First, the dynamic positioning accuracy of materials is insufficient. During the start-up, shutdown, or speed change of traditional conveyor systems (such as belt conveyors), materials are prone to slippage or deviation due to inertia, resulting in out-of-tolerance marking positions. Although some equipment is equipped with photoelectric sensors to assist positioning, it is still difficult to achieve real-time closed-loop correction of material positions due to factors such as mechanical transmission clearance and motor response delay. Manual intervention and adjustment are often required, which cannot meet the accuracy requirements of high-speed automated production lines.

[0004] Secondly, mechanical vibration interference is difficult to suppress. Marking requires the laser head and material to maintain an absolutely stable relative position, but vibrations from the motor starting and stopping, and tension fluctuations in the conveyor belt, can all be transmitted to the material surface. Especially on thin-walled parts or highly reflective materials, even micron-level vibrations can cause blurred markings, ghosting, or even focus shift, significantly reducing the marking pass rate.

[0005] Furthermore, the clamping mechanism lacks self-adaptive capability. Conventional pneumatic or mechanical clamping devices mostly use rigid contact, and the clamping force cannot be dynamically adjusted. When handling materials of different thicknesses and materials (such as flexible circuit boards and curved metal parts), it is very easy to cause workpiece deformation or surface damage due to overpressure; if the clamping force is insufficient, it cannot effectively suppress vibration, thus falling into the dilemma of "damage" and "loosening".

[0006] In summary, existing laser marking equipment suffers from technical problems such as insufficient dynamic positioning accuracy of materials, difficulty in suppressing mechanical vibration interference, and lack of self-adaptive capability in the clamping mechanism during the marking process. Utility Model Content

[0007] This application provides a laser marking machine for precise material feeding. Existing laser marking equipment suffers from technical problems such as insufficient dynamic positioning accuracy of materials, difficulty in suppressing mechanical vibration interference, and lack of adaptive capability of the clamping mechanism during the marking process.

[0008] The technical solution adopted in the embodiments of this application is as follows:

[0009] A laser marking machine for precise material feeding includes a support frame, a conveying device for conveying materials, a positioning mechanism for precisely positioning the material, a laser marking instrument for marking the material, and a bent support seat disposed on one side of the top of the conveying device; the conveying device is disposed on the top of the support frame; the positioning mechanism is disposed on the other side of the top of the conveying device; the laser marking instrument is disposed on the top of the bent support seat, and the laser marking instrument is located directly above the positioning mechanism.

[0010] A further technical solution is as follows: the conveying device includes support rollers, a conveyor belt for conveying materials, a support plate for supporting the conveyor belt, a fixed frame mounted on the support frame, and a first driving device mounted on one side of the fixed frame; two sets of support rollers symmetrically arranged are rotatably connected to the fixed frame; the first driving device is drivenly connected to one set of support rollers; the conveyor belt is arranged around the two sets of support rollers; the support plate is arranged inside the fixed frame and is attached to the surface of the conveyor belt for supporting the conveyor belt; the positioning mechanism and the bending support seat are respectively installed on both sides of the top of the fixed frame.

[0011] A further technical solution is as follows: the positioning mechanism includes a lifting plate, a second driving device for driving the lifting plate to rise and fall, and a clamping component for pressing the material; the second driving device is installed on one side of the top of the fixed frame; the lifting plate is disposed on the driving end of the second driving device; two sets of clamping components are installed on the lifting plate in a symmetrical arrangement; both sets of clamping components are located directly above the conveyor belt; the laser marking instrument is located between the two sets of clamping components; the clamping component includes a moving plate, a fixing bolt for fixing the moving plate, a pressure plate for pressing the material, and a buffer component for buffering the pressure plate; a slot is provided on one side of the moving plate; one side of the moving plate is held on the lifting plate through the slot, and the moving plate is fixed on the lifting plate by the fixing bolt; several sets of buffer components are arranged in a linear array between the pressure plate and the moving plate.

[0012] A further technical solution is as follows: the buffer includes a damping pad, a spring, and a telescopic rod; the damping pad is disposed on the movable plate; the spring is disposed around the telescopic rod; the telescopic end of the telescopic rod is connected to the pressure plate; the other end of the telescopic rod is connected to the damping pad; one end of the spring is connected to the pressure plate; and the other end of the spring is connected to the damping pad.

[0013] A further technical solution is that a rubber pad is provided on the pressure plate.

[0014] A further technical solution is that the first driving device is a servo motor.

[0015] A further technical solution is that the second driving device is a cylinder.

[0016] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0017] 1. The system incorporates a support frame, conveyor, positioning mechanism, laser marking instrument, and bending support base. A servo motor-driven conveyor, in conjunction with symmetrical double clamping components, vertically and synchronously presses down the material under the influence of a cylinder-driven lifting plate, completely eliminating slippage and inertial offset during conveying. The moving plate of the clamping component is laterally adjustable via slots and fixing bolts to accommodate materials of different sizes, ensuring the clamping force is always applied within the center of gravity area, eliminating the risk of deflection at the source. The buffer component employs a three-stage vibration reduction structure: the spring absorbs the impact energy during clamping, the telescopic rod maintains the vertical movement trajectory of the pressure plate, and the damping pad dissipates the high-frequency vibration of the conveyor belt, forming a mechanical filtering barrier. Rubber pads at the bottom of the pressure plate further isolate residual vibration, ensuring the material is in a micro-vibration environment throughout the marking process, guaranteeing laser focusing stability. The elastic deformation of the buffer component adapts to changes in material thickness: the spring provides flexible compression when clamping thin-walled parts, avoiding rigid overpressure; the telescopic rod provides rigid support when handling thick workpieces, preventing insufficient clamping force. Rubber pads increase the coefficient of friction without damaging the surface, making them especially suitable for sensitive materials such as polished metals and coated panels. The mounting bracket rigidly integrates the conveying device, positioning mechanism, and laser marking instrument, eliminating accumulated assembly errors and ensuring that the laser beam is projected vertically onto the center area of ​​the clamping component. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a laser marking machine for precise material feeding according to an embodiment of this utility model.

[0019] Figure 2 This is a partial structural schematic diagram illustrating the conveying device in an embodiment of this utility model.

[0020] Figure 3 This is a partial structural diagram illustrating the positioning mechanism in an embodiment of this utility model.

[0021] Figure 4 This is a partial structural diagram illustrating the clamping component in an embodiment of this utility model.

[0022] In the diagram: 1. Support frame; 2. Conveying device; 21. Support roller; 22. Conveyor belt; 23. Support plate; 24. Fixed frame; 25. First drive device; 3. Positioning mechanism; 31. Lifting plate; 32. Second drive device; 33. Clamping component; 331. Moving plate; 332. Fixing bolt; 333. Pressure plate; 334. Buffer component; 4. Laser marking instrument; 5. Bending support seat. Detailed Implementation

[0023] This application provides a laser marking machine for precise material feeding. Existing laser marking equipment suffers from technical problems such as insufficient dynamic positioning accuracy of materials, difficulty in suppressing mechanical vibration interference, and lack of adaptive capability of the clamping mechanism during the marking process.

[0024] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0025] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0026] A laser marking machine with precise material feeding, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a support frame 1, a conveying device 2 for conveying materials, a positioning mechanism 3 for accurately positioning the material, a laser marking instrument 4 for marking the material, and a bent support seat 5 set on one side of the top of the conveying device 2; the conveying device 2 is set on the top of the support frame 1; the positioning mechanism 3 is set on the other side of the top of the conveying device 2; the laser marking instrument 4 is set on the top of the bent support seat 5, and the laser marking instrument 4 is located directly above the positioning mechanism 3.

[0027] The conveying device 2 includes support rollers 21, a conveyor belt 22 for conveying materials, a support plate 23 for supporting the conveyor belt 22, a fixed frame 24 mounted on the support frame 1, and a first drive device 25 mounted on one side of the fixed frame 24; two sets of symmetrically arranged support rollers 21 are rotatably connected to the fixed frame 24; the first drive device 25 is drivenly connected to one set of support rollers 21; the conveyor belt 22 is arranged around the two sets of support rollers 21; the support plate 23 is arranged inside the fixed frame 24 and is attached to the surface of the conveyor belt 22 for supporting the conveyor belt 22; the positioning mechanism 3 and the bending support seat 5 are respectively installed on the top two sides of the fixed frame 24.

[0028] The positioning mechanism 3 includes a lifting plate 31, a second driving device 32 for driving the lifting plate 31 to rise and fall, and a clamping component 33 for clamping materials. The second driving device 32 is installed on one side of the top of the fixed frame 24. The lifting plate 31 is located on the driving end of the second driving device 32. Two sets of clamping components 33 are installed on the lifting plate 31 and are arranged symmetrically. Both sets of clamping components 33 are located directly above the conveyor belt 22. The laser marking instrument 4 is located between the two sets of clamping components 33. The clamping component 33 includes a moving plate 331, a fixing bolt 332 for fixing the moving plate 331, a pressure plate 333 for clamping materials, and a buffer component 334 for buffering the pressure plate 333. A slot is provided on one side of the moving plate 331. The moving plate 331 is held on the lifting plate 31 by the slot and is fixed on the lifting plate 31 by the fixing bolt 332. Several sets of buffer components 334 are arranged in a linear array between the pressure plate 333 and the moving plate 331.

[0029] The buffer 334 includes a damping pad, a spring, and a telescopic rod; the damping pad is disposed on the moving plate 331; the spring is disposed around the telescopic rod; the telescopic end of the telescopic rod is connected to the pressure plate 333; the other end of the telescopic rod is connected to the damping pad; one end of the spring is connected to the pressure plate 333; the other end of the spring is connected to the damping pad.

[0030] A rubber pad is provided on the pressure plate 333.

[0031] The first drive unit 25 is a servo motor.

[0032] The second drive unit 32 is a cylinder.

[0033] Basic frame: Support frame 1 supports conveying device 2, and support rollers 21 are symmetrically installed on both sides of its fixed frame 24. Conveyor belt 22 surrounds support rollers 21 and is supported by support plate 23. Servo motor as first drive device 25 drives support rollers 21 to feed intermittently.

[0034] Positioning and clamping: A positioning mechanism 3 is set on one side of the top of the fixed frame 24. The cylinder acts as the second driving device 32 to drive the lifting plate 31 to move vertically. The lifting plate 31 is equipped with two sets of symmetrical clamping parts 33 through the slot. The moving plate 331 is locked in position by the fixing bolt 332. The pressure plate 333 is connected to the moving plate 331 through the buffer part 334 (including damping pad, spring and telescopic rod). Rubber pads are added to the surface of the pressure plate 333 to protect the material.

[0035] Marking unit: The other side of the fixed frame 24 is equipped with a bent support seat 5, and the laser marking instrument 4 is fixed on its top and suspended directly above the positioning mechanism 3 to ensure that the laser beam is projected vertically to the material area between the two clamping parts 33.

[0036] Operating procedures

[0037] Material conveying: The servo motor drives the support roller 21, which in turn drives the conveyor belt 22 to convey the material to the area below the positioning mechanism 3;

[0038] Precise positioning: The cylinder pushes the lifting plate 31 down, so that the two sets of clamping parts 33 press down on the material simultaneously;

[0039] Dynamic clamping: When the pressure plate 333 comes into contact with the material, the spring of the buffer 334 is compressed and triggers the telescopic rod to fine-tune, the damping pad absorbs vibration energy, and the rubber pad prevents surface scratches;

[0040] Laser marking: After the material stabilizes, the laser marking machine 4 emits a laser beam to mark the material at a predetermined position.

[0041] Release and reset: The cylinder lifts the clamping part 33, and the servo motor drives the conveyor belt 22 to move the next material;

[0042] Cyclic operation: The system sequentially repeats the positioning-pressing-marking process to achieve continuous and precise operation.

[0043] Beneficial effects

[0044] Thanks to the use of a support frame 1, conveying device 2, positioning mechanism 3, laser marking instrument 4, and bending support base 5, the conveying device 2, driven by a servo motor, works in conjunction with symmetrical double clamping components 33. Under the influence of a cylinder-driven lifting plate 31, the material is vertically and synchronously pressed down, completely eliminating slippage and inertial offset during conveying. The moving plate 331 of the clamping component 33 is laterally adjustable via slots and fixing bolts 332 to accommodate materials of different sizes, ensuring that the clamping force application point is always located in the center of gravity area, eliminating the risk of deflection at the source. The buffer component 334 adopts a three-stage vibration reduction structure: the spring absorbs the impact energy at the moment of clamping, the telescopic rod maintains the vertical movement trajectory of the pressure plate 333, and the damping pad dissipates the high-frequency vibration of the conveyor belt 22, forming a mechanical filtering barrier. The rubber pad at the bottom of the pressure plate 333 further isolates residual vibration, keeping the material in a "micro-vibration environment" throughout the marking process, ensuring the stability of laser focusing. The elastic deformation of the buffer 334 can adapt to changes in material thickness: when clamping thin-walled parts, the spring is flexibly compressed to avoid rigid overpressure; when handling thick workpieces, the telescopic rod provides rigid support to prevent insufficient clamping force. The rubber pad increases the coefficient of friction without damaging the surface, making it particularly suitable for sensitive materials such as polished metals and coated sheets. The fixed frame 24 rigidly integrates the conveying device 2, positioning mechanism 3, and laser marking instrument 4, eliminating accumulated assembly errors and ensuring that the laser beam is projected vertically to the center area of ​​the clamping component 33.

[0045] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0046] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A laser marking machine for precision dispensing, characterized in that, It includes a support frame (1), a conveying device (2) for conveying materials, a positioning mechanism (3) for accurately positioning the material, a laser marking instrument (4) for marking the material, and a bent support seat (5) set on one side of the top of the conveying device (2); the conveying device (2) is set on the top of the support frame (1); the positioning mechanism (3) is set on the other side of the top of the conveying device (2); the laser marking instrument (4) is set on the top of the bent support seat (5), and the laser marking instrument (4) is located directly above the positioning mechanism (3).

2. A laser marking machine for precision dispensing as claimed in claim 1, wherein, The conveying device (2) includes support rollers (21), a conveyor belt (22) for conveying materials, a support plate (23) for supporting the conveyor belt (22), a fixed frame (24) mounted on the support frame (1), and a first drive device (25) mounted on one side of the fixed frame (24); two sets of support rollers (21) are rotatably connected to the fixed frame (24) and are arranged symmetrically; the first drive device (25) is drivenly connected to one set of support rollers (21); the conveyor belt (22) is arranged around the two sets of support rollers (21); the support plate (23) is arranged inside the fixed frame (24) and the support plate (23) is attached to the surface of the conveyor belt (22) for supporting the conveyor belt (22); the positioning mechanism (3) and the bending support seat (5) are respectively installed on the top two sides of the fixed frame (24).

3. A laser marking machine for precision dispensing as claimed in claim 2, wherein, The positioning mechanism (3) includes a lifting plate (31), a second driving device (32) for driving the lifting plate (31) to rise and fall, and a clamping component (33) for clamping the material; the second driving device (32) is installed on one side of the top of the fixed frame (24); the lifting plate (31) is set on the driving end of the second driving device (32); two sets of clamping components (33) are installed on the lifting plate (31) and are arranged symmetrically; both sets of clamping components (33) are located directly above the conveyor belt (22); The laser marking instrument (4) is located between the two sets of clamping components (33); the clamping component (33) includes a moving plate (331), a fixing bolt (332) for fixing the moving plate (331), a pressure plate (333) for clamping the material, and a buffer component (334) for buffering the pressure plate (333); a slot is provided on one side of the moving plate (331); one side of the moving plate (331) is clamped on the lifting plate (31) through the slot, and the moving plate (331) is fixed on the lifting plate (31) by the fixing bolt (332); a number of buffer components (334) arranged in a straight line array are provided between the pressure plate (333) and the moving plate (331).

4. A laser marking machine for precision dispensing as claimed in claim 3, wherein, The buffer (334) comprises a damping pad, a spring and a telescopic rod; the damping pad is arranged on the moving plate (331); the spring is arranged around the telescopic rod; one end of the telescopic rod is connected to the pressing plate (333); the other end of the telescopic rod is connected to the damping pad; one end of the spring is connected to the pressing plate (333); the other end of the spring is connected to the damping pad.

5. A laser marking machine for precision dispensing as claimed in claim 4, wherein, A rubber pad is arranged on the pressing plate (333).

6. A laser marking machine for precision dispensing as claimed in claim 2, wherein, The first driving device (25) is a servo motor.

7. A laser marking machine for precision dispensing as claimed in claim 3, wherein, The second driving device (32) is a gas cylinder.

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