Laser automatic positioning marking equipment

By introducing an automatic product dispenser and a visual positioning system, the problems of low efficiency and high error rate when products are stacked in existing laser automatic positioning and marking equipment have been solved, realizing an automated and precise marking process.

CN223616957UActive Publication Date: 2025-12-02TONGXIANG XINLONG MASCH PARTS CO LTD
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Patent Information

Application Number
CN202423105259.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-12-02
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing laser automatic positioning and marking equipment requires manual placement when products are stacked, resulting in low processing efficiency and a high risk of marking errors.

Method used

The system employs an automatic product dispenser and a visual positioning system to achieve automatic, continuous, and orderly product delivery, and ensures the accuracy of marking through the cooperation of a positioning camera and a laser head.

Benefits of technology

It significantly improves processing efficiency, reduces labor costs, decreases marking error rate, and enhances marking flexibility and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides automatic laser positioning and marking equipment which comprises a belt conveying rack, an automatic product dispenser is arranged at one end of a conveying belt mounted on the belt conveying rack, a visual rack is mounted above the belt conveying rack, a positioning camera is mounted on the visual rack, a laser head is arranged above the visual rack, and a laser light source is arranged above the laser head. The laser head is fixed to the output end of the telescopic air cylinder, the telescopic air cylinder is installed on the screw lifting frame, the screw lifting frame is installed on the marking control box, and a man-machine interaction interface is arranged on the marking control box. According to the automatic feeding device, automatic and continuous feeding of products is achieved, the machining efficiency is remarkably improved, the labor cost is saved, and the production process is more efficient and automatic. Due to the design of a feeding turntable and a driving groove in the dispenser, independent and uniform distribution of products is ensured, misjudgment of a visual identification system is avoided, and the marking error rate is reduced. And each product is independently placed, and the positioning camera accurately captures and recognizes, so that accurate marking is realized.
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Description

Technical Field

[0001] This utility model belongs to the field of laser marking technology, and in particular relates to a laser automatic positioning marking device. Background Technology

[0002] The working principle of laser automatic positioning and marking equipment is ingenious: it focuses a high-energy-density laser onto the surface of the object to be marked. Through a precisely controlled burning and etching process, the surface material is vaporized. Simultaneously, with the help of precise displacement control of the laser beam, a preset pattern or text can be accurately imprinted on the object. The automatic positioning function of this equipment relies on its built-in camera, which captures image information of the product below, and then uses an advanced vision positioning system to accurately analyze and locate it.

[0003] However, traditional laser automatic positioning and marking equipment on the market has certain limitations in its operation process. To prevent unmarked products from being stacked together, it usually requires manually placing each product onto a belt conveyor to achieve continuous transport and marking. This manual placement method is not only time-consuming and labor-intensive, severely restricting the improvement of overall processing efficiency, but also easily leads to misjudgments by the visual recognition system when products are densely arranged, resulting in an unnecessary increase in the marking error rate.

[0004] Therefore, it is essential to invent a laser-automatic positioning and marking device. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a laser automatic positioning and marking device, comprising a belt conveyor frame, a conveyor belt, an automatic product dispenser, a vision frame, positioning cameras, a laser head, a telescopic cylinder, a screw lifting frame, a marking control box, and a human-machine interface. The automatic product dispenser is located at one end of the conveyor belt mounted on the belt conveyor frame. A vision frame is fixedly installed in the middle above the belt conveyor frame, and several positioning cameras are mounted on the vision frame. A laser head is located directly above the vision frame and is fixed to the output end of the telescopic cylinder. The telescopic cylinder is fixedly mounted on the screw lifting frame, and the bottom end of the screw lifting frame is fixedly mounted on the marking control box. A human-machine interface is installed on the marking control box.

[0006] Preferably, the belt conveyor frame is divided into a front end and a rear end. The automatic product dispenser is located at the front end of the belt conveyor frame. The products inside the automatic product dispenser fall to the front end of the belt conveyor frame and are conveyed to the rear end. The laser head is located above the front end and the rear end of the belt conveyor frame.

[0007] Preferably, the automatic product dispenser includes a dispensing box, a support leg, a product box, and a notch. The lower center of the dispensing box is fixed to the upper end of the support leg. A product box is installed on one side of the upper part of the dispensing box, and the two are connected. A notch is provided through one side of the upper part of the product box for removing products that have been misplaced inside the product box.

[0008] Preferably, the automatic product dispenser further includes a dispensing turntable, a driving component, and driving slots. The dispensing turntable is rotatably installed inside the dispensing box. The output end of the driving component, which is fixedly installed outside the dispensing box, is fixed to the dispensing turntable and drives the dispensing turntable to move. The driving slots that are opened through the dispensing turntable are distributed in a circular array.

[0009] Preferably, a dispensing notch is provided on one side below the dispensing box. The dispensing notch is located at the front end of the belt conveyor frame, that is, at the upper end of the conveyor belt, so that the product inside the trough can fall smoothly through the dispensing notch to the upper end of the conveyor belt.

[0010] Preferably, there is always a drive slot directly below the product box and directly above the delivery slot, allowing the product at the bottom of the inner side of the product box to fall smoothly into the delivery box and be located in one of the drive slots, with only a single product allowed in each drive slot.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention introduces an automatic product dispenser, enabling automatic, continuous, and orderly product delivery, significantly improving overall processing efficiency while substantially reducing labor costs, making the production process more automated and efficient. The dispenser's internal design, including the dispensing turntable and drive groove, ensures that each product is independently and evenly distributed on the conveyor belt, effectively avoiding misjudgments by the visual recognition system when products are densely packed, thus reducing the marking error rate. Each product is individually placed in a specific position during delivery, and the positioning camera accurately captures and identifies the image information of each product, achieving precise marking.

[0013] Furthermore, the equipment features an optimized structural design. The notch design ensures that the product can be accurately positioned at the predetermined location, providing excellent preconditions for subsequent laser marking. Simultaneously, the combined use of the screw lifting frame and telescopic cylinder allows the laser head to be flexibly adjusted in height and position as needed, further improving the flexibility and accuracy of marking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is another overall structural schematic diagram of this utility model.

[0016] Figure 3 This is a partial cross-sectional structural diagram of the automatic dispenser of this utility model.

[0017] Figure 4 This is a schematic diagram of the bottom structure of the automatic dispenser of this utility model.

[0018] In the picture:

[0019] 1. Belt conveyor frame; 2. Conveyor belt; 3. Automatic product dispenser; 31. Dispensing box; 32. Support leg; 33. Product box; 34. Notch; 35. Dispensing turntable; 36. Drive component; 37. Drive trough; 38. Dispensing notch; 4. Vision frame; 5. Positioning camera; 6. Laser head; 7. Telescopic cylinder; 8. Screw lifting frame; 9. Marking control box; 10. Human-machine interface. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0021] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0022] As attached Figure 1 To be continued Figure 4 As shown:

[0023] This utility model provides a laser automatic positioning and marking device, including a belt conveyor frame 1, a conveyor belt 2, an automatic product dispenser 3, a vision frame 4, a positioning camera 5, a laser head 6, a telescopic cylinder 7, a screw lifting frame 8, a marking control box 9, and a human-machine interface 10. The automatic product dispenser 3 is located at one end of the conveyor belt 2 mounted on the belt conveyor frame 1. The vision frame 4 is fixedly installed in the middle above the belt conveyor frame 1. Several positioning cameras 5 are installed on the vision frame 4. The laser head 6 is located directly above the vision frame 4. The laser head 6 is fixed to the output end of the telescopic cylinder 7. The telescopic cylinder 7 is fixedly installed on the screw lifting frame 8. The bottom end of the screw lifting frame 8 is fixedly installed on the marking control box 9. The marking control box 9 is equipped with a human-machine interface 10.

[0024] Furthermore, the belt conveyor frame 1 is clearly divided into front and rear sections. The automatic product dispenser 3 is cleverly positioned at the front of the belt conveyor frame 1. The products inside, under the influence of gravity, naturally fall to the front of the belt conveyor frame 1 and are then smoothly conveyed to the rear section by the continuous movement of the conveyor belt 2. The laser head 6 is precisely installed above the area between the front and rear of the belt conveyor frame 1, ready to mark the products.

[0025] Furthermore, the automatic product dispenser 3 includes a dispensing box 31, a support leg 32, a product box 33, and a notch 34. The dispensing box 31 is tightly connected to the upper end of the support leg 32 via its lower center, ensuring overall stability. The product box 33 is cleverly installed on the upper side of the dispensing box 31, and the two are internally connected, facilitating continuous product supply. A notch 34 is also specially provided on the upper surface of the product box 33, which allows the operator to easily remove any products that may have been misplaced inside the product box 33.

[0026] Furthermore, the automatic product dispenser 3 also includes a dispensing turntable 35, a drive component 36, and drive slots 37. The dispensing turntable 35 is cleverly rotatably mounted inside the dispensing box 31, while the drive component 36 is fixedly mounted on the outside of the dispensing box 31. Its output end is tightly connected to the dispensing turntable 35, enabling it to stably drive the dispensing turntable 35 to rotate. Multiple drive slots 37 arranged in a circular array are also formed along the dispensing turntable 35. The design of these drive slots 37 is ingenious, ensuring that the product remains stable and orderly during dispensing.

[0027] Furthermore, to ensure the product falls accurately onto the conveyor belt 2, a feeding notch 38 is specially designed through the lower side of the feeding box 31. This feeding notch 38 is located precisely at the front end of the belt conveyor frame 1, that is, at the upper end of the conveyor belt 2. When the feeding turntable 35 rotates to the appropriate position, the product inside the drive trough 37 can fall smoothly through the feeding notch 38 onto the upper end of the conveyor belt 2. This design not only ensures the accuracy of product feeding but also greatly improves overall production efficiency.

[0028] Furthermore, to ensure continuous product dispensing and that each dispensing slot 37 contains only a single product, a dispensing slot 37 is always positioned directly below the product box 33 and directly above the dispensing notch 38. When the bottommost product inside the product box 33 is dispensed, it falls smoothly into the dispensing box 31 and lands precisely in one of the dispensing slots 37. This design not only ensures that each dispensing slot 37 contains only a single product but also avoids mutual squeezing and collisions between products during dispensing, thereby greatly improving product quality and marking accuracy.

[0029] The working principle is as follows: First, the products are stacked and placed into the product bin 33 of the automatic product dispenser 3. The design of the product bin 33 allows the operator to easily add products while ensuring that the products naturally stack under gravity. If a misplaced product is found in the product bin 33, the operator can easily remove it through the notch 34 for correction or replacement.

[0030] Next, once the products in the product box 33 are ready, the automatic product dispenser 3 begins operation. The drive unit 36 ​​starts, and its output steadily drives the dispensing turntable 35 to rotate. Multiple drive slots 37 arranged in a circular array on the dispensing turntable 35 pass sequentially under the product box 33 as the turntable rotates.

[0031] When a drive trough 37 rotates to be directly below the product box 33, due to gravity, the bottommost product on the inner side of the product box 33 will fall smoothly into the delivery box 31 and land precisely within the drive trough 37. This design ensures that each drive trough 37 contains only a single product, avoiding mutual squeezing and collision of products during delivery.

[0032] As the feeding turntable 35 continues to rotate, the product-loaded drive trough 37 gradually approaches the feeding gap 38. The feeding gap 38 is designed to be located precisely at the front end of the belt conveyor frame 1, that is, above the conveyor belt 2. When the product-loaded drive trough 37 rotates to directly above the feeding gap 38, the product will smoothly fall through the feeding gap 38 onto the upper end of the conveyor belt 2.

[0033] At this point, the conveyor belt 2 begins to move continuously, smoothly transporting the products that fall onto it to the rear position. During the transport process, several positioning cameras 5 installed on the vision frame 4 will accurately position the products, ensuring that the laser head 6 can accurately mark the products.

[0034] The laser head 6 is fixed to the output end of the telescopic cylinder 7, which is then fixedly mounted on the screw lifting frame 8. By adjusting the telescopic length of the telescopic cylinder 7 and the height of the screw lifting frame 8, the position and height of the laser head 6 can be flexibly adjusted to meet the marking requirements of products of different sizes and shapes.

[0035] Finally, the human-machine interface 10 installed on the marking control box 9 allows operators to monitor and control the entire marking process in real time. Operators can use this interface to view equipment status, adjust marking parameters, monitor product quality, and thus achieve comprehensive control over the production process.

[0036] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A laser automatic positioning and marking device, characterized in that, The system includes a belt conveyor frame (1), a conveyor belt (2), an automatic product dispenser (3), a vision frame (4), a positioning camera (5), a laser head (6), a telescopic cylinder (7), a screw lifting frame (8), a marking control box (9), and a human-machine interface (10). The automatic product dispenser (3) is installed at one end of the conveyor belt (2) mounted on the belt conveyor frame (1). The vision frame (4) is fixedly installed in the middle above the belt conveyor frame (1). Several positioning cameras (5) are installed on the vision frame (4). A laser head (6) is installed directly above the vision frame (4). The laser head (6) is fixed to the output end of the telescopic cylinder (7). The telescopic cylinder (7) is fixedly installed on the screw lifting frame (8). The bottom end of the screw lifting frame (8) is fixedly installed on the marking control box (9). The human-machine interface (10) is installed on the marking control box (9).

2. The laser automatic positioning and marking device as described in claim 1, characterized in that: The belt conveyor frame (1) is divided into front and rear ends. The automatic product dispenser (3) is located at the front end of the belt conveyor frame (1). The products inside the automatic product dispenser (3) fall to the front end of the belt conveyor frame (1) and are conveyed to the rear end. The laser head (6) is located above the front and rear ends of the belt conveyor frame (1).

3. The laser automatic positioning and marking device as described in claim 2, characterized in that: The automatic product dispenser (3) includes a dispensing box (31), a support leg (32), a product box (33), and a notch (34). The lower center of the dispensing box (31) is fixed to the upper end of the support leg (32). The product box (33) is installed on one side of the upper part of the dispensing box (31), and the two are connected. A notch (34) is opened through one side of the upper part of the product box (33). The notch (34) is used to take out the product that is misplaced inside the product box (33).

4. The laser automatic positioning and marking device as described in claim 3, characterized in that: The automatic product dispenser (3) also includes a dispensing turntable (35), a driving component (36), and a drive groove (37). The dispensing turntable (35) is rotatably installed inside the dispensing box (31). The output end of the driving component (36) fixedly installed outside the dispensing box (31) is fixed to the dispensing turntable (35) and drives the dispensing turntable (35) to move. The drive groove (37) through the dispensing turntable (35) is distributed in a circular array.

5. The laser automatic positioning and marking device as described in claim 4, characterized in that: The feeding box (31) has a feeding notch (38) on one side below. The feeding notch (38) is located at the front end of the belt conveyor frame (1), that is, at the upper end of the conveyor belt (2). The product inside the drive trough (37) is allowed to fall smoothly through the feeding notch (38) to the upper end of the conveyor belt (2).

6. The laser automatic positioning and marking device as described in claim 5, characterized in that: There will always be a drive slot (37) directly below the product box (33) and directly above the delivery notch (38). The product at the bottom of the inner side of the product box (33) is allowed to fall smoothly into the delivery box (31) and be located in one of the drive slots (37). Only a single product is allowed in each drive slot (37).