Marking device with refracted light path

By designing a marking device with a refracting light path, and utilizing light deflection and parallel adjustment, the problem of the marking machine's external size limitation has been solved, enabling flexible installation, reducing production costs, and improving enterprise competitiveness.

CN224347134UActive Publication Date: 2026-06-12SHEN ZHEN DENGFENG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHEN ZHEN DENGFENG TECH CO LTD
Filing Date
2025-06-06
Publication Date
2026-06-12

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Abstract

This utility model relates to the field of laser marking equipment technology, and proposes a marking device with a refractive optical path, including a marking machine body and a first straight tube, a refractive component, a second straight tube, and an infrared galvanometer arranged sequentially along the optical path direction; the two ends of the first straight tube are respectively connected to the marking machine body and the refractive component, and the two ends of the second straight tube are respectively connected to the refractive component and the infrared galvanometer; the refractive component includes a refractive lens, and the ends of the first and second straight tubes both face the refractive lens, and the opening of the infrared galvanometer faces the material to be marked. Through the above technical solution, the problem of limited application conditions in workshops due to the fixed external dimensions of existing marking machines is solved.
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Description

Technical Field

[0001] This utility model relates to the field of laser marking equipment technology, specifically to a marking device with a refractive optical path. Background Technology

[0002] Refrigerators are an essential household appliance in people's daily lives. Due to increasing market competition, high-quality products are becoming increasingly popular. In particular, refrigerator liners are often labeled after production for quality traceability.

[0003] Marking machines are typically used to mark the inner lining of refrigerators. To improve production efficiency, automated marking methods are employed, involving moving the marking machine or the refrigerator lining itself. However, for companies using single-type marking machines, the size limitations restrict installation and prevent them from completing marking tasks. Purchasing new marking machines increases the production cost of the refrigerator lining.

[0004] Therefore, a new marking device is urgently needed. Utility Model Content

[0005] This invention proposes a marking device with a refracting optical path, which solves the problem that the application of existing marking machines in the workshop is limited due to their fixed external dimensions.

[0006] The technical solution of this utility model is as follows: A marking device with a refractive optical path includes a marking machine body and a first straight tube, a refractive component, a second straight tube, and an infrared galvanometer arranged sequentially along the optical path direction; the two ends of the first straight tube are respectively connected to the marking machine body and the refractive component, and the two ends of the second straight tube are respectively connected to the refractive component and the infrared galvanometer; the refractive component includes a refractive lens, the ends of the first straight tube and the second straight tube are both facing the refractive lens, and the opening of the infrared galvanometer faces the material to be marked;

[0007] Along the optical path, the angle between the light rays in the first straight tube and the light rays in the second straight tube is 45° to 90°, and the light rays emitted by the infrared galvanometer are parallel to the light rays emitted by the marking machine body.

[0008] As a further technical solution, the refractive assembly also includes a protective cover, the refractive lens is disposed inside the protective cover, and the ends of the first straight tube and the second straight tube are both connected to the protective cover.

[0009] As a further technical solution, a protective frame is also included, the protective frame having a protective inner cavity, the protective frame being connected to the output end of the infrared galvanometer, and the light emitted by the infrared galvanometer passing through the protective inner cavity.

[0010] As a further technical solution, an exhaust pipe is also included, which is disposed on the protective frame and communicates with the protective inner cavity.

[0011] As a further technical solution, a barcode reader is also included, which is mounted on the protective frame with its scanning end facing the material to be marked.

[0012] As a further technical solution, a connecting plate is also included, which is disposed at the bottom of the marking machine body.

[0013] As a further technical solution, a support plate is also included, which is connected to the connecting plate, and the protective frame is connected to the support plate.

[0014] As a further technical solution, it also includes an adjustment plate and a fixing frame. The adjustment plate is connected to the protective frame and has multiple adjustment holes arranged side by side. The fixing frame is detachably fixed to the adjustment holes, and the code reader is mounted on the fixing frame.

[0015] The working principle and beneficial effects of this utility model are as follows: The marking device with a refractive optical path includes a marking machine body, a first straight tube, a refractive component, a second straight tube, and an infrared galvanometer. The first straight tube, refractive component, second straight tube, and infrared galvanometer are arranged sequentially along the emission direction of the optical path. The two ends of the first straight tube are connected to the marking machine body and the refractive component, respectively, and the two ends of the second straight tube are connected to the refractive component and the infrared galvanometer, respectively. The light emitted by the marking machine body first enters the first straight tube, and then enters the refractive component. The refractive component contains refractive lenses that refract the light, allowing it to enter the second straight tube. After passing through the second straight tube, the light enters the infrared galvanometer, and is then refracted again within the infrared galvanometer before being emitted into the infrared galvanometer. On the material to be marked, the angle between the light rays in the first straight tube and the light rays in the second straight tube along the direction of the light path is between 45° and 90°. Because the light rays are deflected, and the light rays emitted by the infrared galvanometer and the marking machine are parallel to each other, it is equivalent to shifting the light rays used for marking. This shift allows the marking machine body to be installed in a suitable position, improving the range of working conditions and environments that the marking machine body can adapt to, thereby avoiding the need to replace the marking machine body and reducing production costs in refrigerator production. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 An isometric schematic diagram of the marking device with a refracting optical path provided by this utility model;

[0018] Figure 2 for Figure 1 The right view;

[0019] Figure 3 for Figure 1 Top view;

[0020] Figure 4 for Figure 1 A structural diagram from the first angle;

[0021] Figure 5 for Figure 1 A structural diagram from the second angle;

[0022] Figure 6 for Figure 1 A structural diagram from a third perspective;

[0023] Figure 7 This is a schematic diagram of a portion of the structure of this utility model.

[0024] In the diagram: 1. Marking machine body; 2. First straight tube; 3. Refraction lens; 4. Second straight tube; 5. Infrared galvanometer; 6. Protective cover; 7. Protective frame; 8. Exhaust pipe; 9. Code reader; 10. Connecting plate; 11. Bearing plate; 12. Adjustment plate; 13. Fixing frame; 14. Light beam. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figures 1 to 7 As shown, this embodiment proposes a marking device with a refractive optical path, including a marking machine body 1 and a first straight tube 2, a refractive component, a second straight tube 4, and an infrared galvanometer 5 arranged sequentially along the optical path direction; the two ends of the first straight tube 2 are respectively connected to the marking machine body 1 and the refractive component, and the two ends of the second straight tube 4 are respectively connected to the refractive component and the infrared galvanometer 5; the refractive component includes a refractive lens 3, the ends of the first straight tube 2 and the second straight tube 4 are both facing the refractive lens 3, and the opening of the infrared galvanometer 5 faces the material to be marked;

[0027] Along the optical path, the angle between the light rays in the first straight tube 2 and the light rays in the second straight tube 4 is 45° to 90°, and the light rays emitted from the infrared galvanometer 5 are parallel to the light rays emitted from the marking machine body 1.

[0028] In this embodiment, the marking device with a refractive optical path includes a marking machine body 1, a first straight tube 2, a refractive assembly, a second straight tube 4, and an infrared galvanometer 5. The first straight tube 2, the refractive assembly, the second straight tube 4, and the infrared galvanometer 5 are arranged sequentially along the emission direction of the optical path. The two ends of the first straight tube 2 are connected to the marking machine body 1 and the refractive assembly, respectively. The two ends of the second straight tube 4 are connected to the refractive assembly and the infrared galvanometer 5, respectively. The light emitted from the marking machine body 1 first enters the first straight tube 2, and then enters the refractive assembly. The refractive assembly contains a refractive lens 3, which refracts the light, allowing it to enter the second straight tube 4. After passing through the second straight tube 4, the light enters the infrared galvanometer 5, and is then refracted again within the infrared galvanometer 5 before being emitted to the target area. Regarding the target material, since the angle between the light rays in the first straight tube 2 and the light rays in the second straight tube 4 along the direction of the light path is between 45° and 90°, the light rays are deflected, and the light rays emitted by the infrared galvanometer 5 and the marking machine are parallel to each other. Therefore, it is equivalent to shifting the light rays used for marking. This shift allows the marking machine body 1 to be installed in a suitable position, improving the adaptability of the marking machine body 1 to various working conditions and environments. This avoids the need to replace the marking machine body 1, reduces production costs in refrigerator production, and ultimately enhances the competitiveness of the enterprise.

[0029] Furthermore, such as Figure 1 and Figure 7 As shown in the figure, this embodiment proposes that the refractive assembly also includes a protective cover 6, the refractive lens 3 is disposed inside the protective cover 6, and the ends of the first straight tube 2 and the second straight tube 4 are both connected to the protective cover 6.

[0030] In this embodiment, the refractive assembly also includes a protective cover 6, which has a cavity, an inlet, and an outlet. The inlet and outlet are both connected to the cavity. The refractive lens 3 is disposed inside the cavity of the protective cover 6. The first straight tube 2 is connected to the inlet of the protective cover 6, and the second straight tube 4 is connected to the outlet of the protective cover 6. The light emitted by the marking machine body 1 enters the protective cover 6, is refracted on the refractive lens 3, and then enters the infrared galvanometer 5 through the second straight tube 4. In this way, the light path is refracted, and the light path and the refractive lens 3 are protected to avoid the influence of external impurities and light.

[0031] Furthermore, such as Figures 1-6 As shown, this embodiment also includes a protective frame 7, which has a protective inner cavity. The protective frame 7 is connected to the output end of the infrared galvanometer 5, and the light emitted by the infrared galvanometer 5 passes through the protective inner cavity.

[0032] In this embodiment, since the light used for marking is a high-energy laser, in order to avoid other foreign objects affecting the material to be marked, the marking device with a refracting light path also includes a protective frame 7. The protective frame 7 is connected to the output end of the infrared galvanometer 5. The protective frame 7 has a protective inner cavity. The light emitted by the infrared galvanometer 5 can pass through the protective inner cavity. When the material needs to be marked, it will enter the interior of the protective frame 7.

[0033] Furthermore, such as Figures 1-6 As shown, this embodiment also includes an exhaust pipe 8, which is disposed on the protective frame 7 and connected to the protective inner cavity.

[0034] In this embodiment, since laser marking is used, the space of the protective cavity inside the protective frame 7 is limited. After a certain number of markings are completed, the temperature inside the protective frame 7 will rise, which will affect the marking quality. To avoid this situation, an exhaust pipe 8 is provided on the protective frame 7. The exhaust pipe 8 is connected to an external fan. When the fan is running, it will extract the gas inside the protective frame 7, thereby cooling the inside of the protective frame 7.

[0035] Furthermore, such as Figures 1-6 As shown, this embodiment also includes a barcode reader 9, which is mounted on the protective frame 7 with its scanning end facing the material to be marked.

[0036] In this embodiment, in order to determine that the material has been marked, a barcode reader 9 is set on the protective frame 7. The scanning end of the barcode reader 9 faces the material after the marking is completed. After the marking is completed, the material will be moved out of the protective frame 7. During the movement, the barcode reader 9 will identify the mark on the material. If the reading is successful, it proves that the marking is successful. If the reading is unsuccessful, it proves that the marking is unsuccessful.

[0037] Furthermore, such as Figures 1-6 As shown, this embodiment also includes a connecting plate 10, which is disposed at the bottom of the marking machine body 1.

[0038] In this embodiment, in order to install and fix the marking machine body 1 onto other external structures, the marking equipment with a refractive optical path also includes a connecting plate 10. The connecting plate 10 is located at the bottom of the marking machine body 1, and the marking machine body 1 achieves a detachable connection with the external structure by means of the connecting plate 10.

[0039] Furthermore, such as Figures 1-6 As shown, this embodiment also includes a support plate 11, which is connected to the connecting plate 10, and the protective frame 7 is connected to the support plate 11.

[0040] In this embodiment, the marking device with a refractive optical path also includes a support plate 11, which is connected to the connecting plate 10 and also connected to the protective frame 7. That is, the protective frame 7 is connected to the connecting plate 10 through the support plate 11, so that the marking machine body 1 and the protective frame 7 form a fixed positional relationship. Then, the positions of the first straight tube 2, the refractive component and the second straight tube 4 are fixed.

[0041] Furthermore, such as Figures 1-6 As shown, this embodiment also includes an adjustment plate 12 and a fixing frame 13. The adjustment plate 12 is connected to the protective frame 7. The adjustment plate 12 has multiple adjustment holes arranged side by side. The fixing frame 13 is fixed to the adjustment holes in a detachable manner. The code reader 9 is mounted on the fixing frame 13.

[0042] In this embodiment, due to the different specifications of the materials, the marking position of the materials also changes. Therefore, it is necessary to adjust the posture and position of the barcode reader 9 so that the barcode reader 9 can accurately read the markings on the materials. Therefore, the marking equipment with a refracting light path also includes an adjustment plate 12 and a fixing frame 13. The adjustment plate 12 is set on the protective frame 7, and multiple adjustment holes are provided on the adjustment plate 12. The fixing frame 13 is also provided with corresponding mounting holes. The fixing frame 13 adjusts its position relative to the protective frame 7 by means of the mounting holes and adjustment holes. The barcode reader 9 is fixed on the fixing frame 13 and finally also adjusts its position relative to the protective frame 7.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A marking device with a refractive optical path, characterized in that, The marking machine includes a marking machine body (1) and a first straight tube (2), a refractive component, a second straight tube (4), and an infrared galvanometer (5) arranged sequentially along the optical path. The two ends of the first straight tube (2) are connected to the marking machine body (1) and the refractive component, respectively, and the two ends of the second straight tube (4) are connected to the refractive component and the infrared galvanometer (5), respectively. The refractive component includes a refractive lens (3), and the ends of the first straight tube (2) and the second straight tube (4) are both facing the refractive lens (3). The opening of the infrared galvanometer (5) faces the material to be marked. Along the optical path, the angle between the light rays in the first straight tube (2) and the light rays in the second straight tube (4) is 45° to 90°, and the light rays emitted by the infrared galvanometer (5) are parallel to the light rays emitted by the marking machine body (1).

2. The marking device with a refractive optical path according to claim 1, characterized in that, The refractive assembly also includes a protective cover (6), the refractive lens (3) is disposed inside the protective cover (6), and the ends of the first straight tube (2) and the second straight tube (4) are both connected to the protective cover (6).

3. The marking device with a refractive optical path according to claim 2, characterized in that, It also includes a protective frame (7) having a protective cavity. The protective frame (7) is connected to the output end of the infrared galvanometer (5), and the light emitted by the infrared galvanometer (5) passes through the protective cavity.

4. The marking device with a refractive optical path according to claim 3, characterized in that, It also includes an exhaust pipe (8), which is disposed on the protective frame (7) and communicates with the protective cavity.

5. The marking device with a refractive optical path according to claim 4, characterized in that, It also includes a barcode reader (9), which is mounted on the protective frame (7) with its scanning end facing the material to be marked.

6. The marking device with a refractive optical path according to claim 5, characterized in that, It also includes a connecting plate (10), which is disposed at the bottom of the marking machine body (1).

7. The marking device with a refractive optical path according to claim 6, characterized in that, It also includes a support plate (11), which is connected to the connecting plate (10), and the protective frame (7) is connected to the support plate (11).

8. The marking device with a refractive optical path according to claim 5, characterized in that, It also includes an adjustment plate (12) and a fixing frame (13). The adjustment plate (12) is connected to the protective frame (7). The adjustment plate (12) has multiple adjustment holes arranged side by side. The fixing frame (13) is fixed to the adjustment holes in a detachable manner. The code reader (9) is set on the fixing frame (13).