A barcode scanning device

Abstract

This utility model provides a barcode scanning device. The barcode scanning device, located at a scanning station on a conveying mechanism, includes a barcode scanner, a first reflector, a second reflector, a third reflector, and a rotating mechanism. The third reflector is fixed on the rotation shaft of the rotating mechanism. The first and second reflectors are respectively located on the side of the rotating mechanism closer to the conveying mechanism, and the barcode scanner is located on the side of the rotating mechanism away from the conveying mechanism. The conveying mechanism includes at least one first bearing position and at least one second bearing position. The first reflector is positioned corresponding to the first bearing position, and the second reflector is positioned corresponding to the second bearing position. The rotating mechanism drives the third reflector to rotate, causing product information on at least one first bearing position and at least one second bearing position to alternately pass through the first or second reflector and then the third reflector to the barcode scanner. This embodiment achieves low-cost, rapid, alternating barcode scanning and identification for double-row incoming materials.

Description

Technical Field

[0001] This utility model relates to the field of detection technology. More specifically, it relates to a barcode scanning device. Background Technology

[0002] With the development of automated testing technology, the demand for testing the displays of electronic devices such as mobile phones and tablets is increasing, and improving testing efficiency is of particular concern.

[0003] Currently, the conveying mechanism of display screen testing lines typically uses a dual-sheet feeding method. This means the conveying mechanism includes multiple first and second bearing positions, distributed along the conveying direction. There are two main automated barcode scanning solutions: one uses two barcode scanners to scan the first and second bearing positions at the scanning station, but this solution is costly; the other places the barcode scanner on a single-axis displacement mechanism, using lateral displacement to scan the dual sheets sequentially, but this solution has a longer displacement stroke and lower scanning efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a low-cost and high-efficiency barcode scanning device to solve at least one of the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The first aspect of this utility model provides a barcode scanning device, which is installed at the barcode scanning station of a conveying mechanism. The barcode scanning device includes: a barcode scanner, a first reflector, a second reflector, a third reflector, and a rotating mechanism.

[0007] The third reflector is fixed on the rotation axis of the rotating mechanism, the first reflector and the second reflector are respectively disposed on the side of the rotating mechanism closer to the conveying mechanism, and the barcode scanner is disposed on the side of the rotating mechanism away from the conveying mechanism.

[0008] The conveying mechanism includes at least one first carrier position and at least one second carrier position. The first reflector is set corresponding to the first carrier position, and the second reflector is set corresponding to the second carrier position. The rotating mechanism is used to drive the third reflector to rotate so that the product information on at least one first carrier position and at least one second carrier position alternates and passes sequentially through the first reflector or the second reflector and the third reflector to the barcode scanner.

[0009] Furthermore, the reflective surfaces of the first and second reflectors are arranged opposite each other and face the conveying mechanism respectively.

[0010] Furthermore, the reflecting surfaces of the first and second reflectors are at a 45° angle to the bearing surface of the conveying mechanism, respectively.

[0011] Furthermore, the rotating mechanism includes a rotary cylinder.

[0012] Furthermore, the third reflecting mirror is a double-sided reflecting mirror.

[0013] Furthermore, the first reflective surface of the double-sided mirror is coated with a first anti-reflection film, and the second reflective surface is coated with a second anti-reflection film. The first anti-reflection film and the second anti-reflection film correspond to different optical wavelengths.

[0014] Furthermore, the reflective surface of the third reflector is coated with an anti-reflection film, and the light band corresponding to the anti-reflection film covers the light band corresponding to the barcode scanner.

[0015] Furthermore, the reflective surfaces of the first and second reflective mirrors are respectively coated with anti-reflection films, and the optical wavelength corresponding to the anti-reflection films covers the optical wavelength corresponding to the barcode scanner.

[0016] Furthermore, the transmission mechanism includes a plurality of first carrier positions and a plurality of second carrier positions;

[0017] Multiple first carrier positions and multiple second carrier positions are distributed along the conveying direction of the conveying mechanism;

[0018] The reflecting surface of the first reflector faces the first bearing position located at the scanning station, and the reflecting surface of the second reflector faces the second bearing position located at the scanning station.

[0019] Furthermore, the first and second carrier positions are arranged alternately in the transmission direction of the transmission mechanism.

[0020] The beneficial effects of this utility model are as follows:

[0021] The barcode scanning device provided by this utility model is applicable in scenarios where the conveyor mechanism of the barcode scanning device has two rows of incoming materials:

[0022] First, the optical path can be quickly switched by rotating the third reflector. Combined with the first and second reflectors, this allows for rapid, alternating scanning and identification of the two rows of incoming materials on the conveyor mechanism, achieving near-simultaneous scanning. Compared to the existing linear scanning method using a single scanner driven by a displacement mechanism, this significantly shortens scanning time and improves efficiency, making it particularly suitable for high-speed inspection scenarios with two parallel incoming materials. Its response speed is faster, and the combination of multiple reflectors and rotating equipment is simpler and more durable than a linear displacement mechanism. Furthermore, the structure itself is also less expensive.

[0023] Secondly, the optical path design of the reflector avoids large physical displacement of the barcode scanner. The stationary barcode scanner improves the stability of the barcode scanning process. Furthermore, compared with the displacement barcode scanner, the rotating third reflector has less mechanical wear, which effectively improves the long-term stability and reliability of the device, while also saving space in the equipment layout.

[0024] Finally, compared to the linear motion module solution, the rotary mechanism is easier to maintain and has a lower failure rate, further reducing the overall operating cost over the equipment's lifecycle.

[0025] In summary, this invention achieves an optimal balance between cost and work efficiency, making it highly suitable for large-scale automated testing applications. Attached Figure Description

[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0027] Figure 1 A three-dimensional structural schematic diagram of the barcode scanning device of this utility model is shown.

[0028] Figure 2 This diagram shows a schematic of the scanning device in its first state according to a first embodiment of the present invention.

[0029] Figure 3 This diagram shows a schematic of the scanning device in its second state in the first embodiment of the present invention.

[0030] Figure 4 This diagram shows a schematic of the scanning device in its first state in a second embodiment of the present invention.

[0031] Figure 5 This diagram shows a second embodiment of the scanning device of the present invention in a second state.

[0032] Figure 6 This diagram shows a structural schematic of the scanning device in its first state in a third embodiment of the present invention.

[0033] Figure 7 This diagram shows a structural schematic of the scanning device in its second state in the third embodiment of the present invention.

[0034] Figure 8 This diagram shows the structure of the scanning device in the first state in the fourth embodiment of the present invention.

[0035] Figure 9 This diagram shows a schematic of the scanning device in its second state in the fourth embodiment of the present invention.

[0036] Figure 10 This diagram shows a structural schematic of the scanning device in its first state in the fifth embodiment of the present invention.

[0037] Figure 11 This diagram illustrates the optical path transmission structure in the first state of the scanning device in the fourth embodiment of the present invention.

[0038] Figure 12 This diagram illustrates the optical path transmission structure in the second state of the scanning device in the fourth embodiment of the present invention. Detailed Implementation

[0039] To more clearly illustrate this utility model, the following description, in conjunction with embodiments and accompanying drawings, further explains the present utility model. Similar components in the drawings are indicated by the same reference numerals. Those skilled in the art should understand that the specific description below is illustrative rather than restrictive and should not be construed as limiting the scope of protection of this utility model.

[0040] like Figure 1 As shown, one embodiment of the present invention provides a barcode scanning device, which is set at the barcode scanning station 60 of the conveying mechanism 10. The barcode scanning device includes: barcode scanner 70, first reflector 20, second reflector 30, third reflector 40 and rotating mechanism 50.

[0041] The third reflector 40 is fixed on the rotation axis of the rotating mechanism 50, the first reflector 20 and the second reflector 30 are respectively disposed on the side of the rotating mechanism 50 closer to the conveying mechanism 10, and the barcode scanner 70 is disposed on the side of the rotating mechanism 50 away from the conveying mechanism 10.

[0042] The conveying mechanism 10 includes at least one first bearing position 11 and at least one second bearing position 12. Specifically, at least one first bearing position 11 and at least one second bearing position 12 are arranged along the z-direction perpendicular to the conveying direction. Figure 1 In the transmission mechanism 10, the transmission direction is the x-direction. The first reflector 20 is set corresponding to the first carrier position 11, and the second reflector 30 is set corresponding to the second carrier position 12. During the scanning detection, the rotation mechanism is used to drive the third reflector 40 to rotate, so that the product information on at least one first carrier position 11 and at least one second carrier position 12 alternates and passes through the first reflector 20 or the second reflector 30 and the third reflector 40 to the scanner 70 in sequence.

[0043] The barcode scanning device provided by this utility model is applicable in scenarios where the conveyor mechanism of the barcode scanning device has two rows of incoming materials:

[0044] First, the optical path can be quickly switched by rotating the third reflector. Combined with the first and second reflectors, this allows for rapid, alternating scanning and identification of the two rows of incoming materials on the conveyor mechanism, achieving near-simultaneous scanning. Compared to the existing linear scanning method using a single scanner driven by a displacement mechanism, this significantly shortens scanning time and improves efficiency, making it particularly suitable for high-speed inspection scenarios with two parallel incoming materials. Its response speed is faster, and the combination of multiple reflectors and rotating equipment is simpler and more durable than a linear displacement mechanism. Furthermore, the structure itself is also less expensive.

[0045] Secondly, the optical path design of the reflector avoids large physical displacement of the barcode scanner. The stationary barcode scanner improves the stability of the barcode scanning process. Furthermore, compared with the displacement barcode scanner, the rotating third reflector has less mechanical wear, which effectively improves the long-term stability and reliability of the system, while also saving space in the equipment layout.

[0046] Finally, compared to the linear motion module solution, the rotary mechanism is easier to maintain and has a lower failure rate, further reducing the overall operating cost over the equipment's lifecycle.

[0047] In summary, this invention achieves an optimal balance between cost and work efficiency, making it highly suitable for large-scale automated testing applications.

[0048] In one specific example, the barcode scanning station 60 includes a bracket, on which a first reflector 20, a second reflector 30, a barcode scanner 70, and a rotating mechanism 50 are mounted.

[0049] In one possible implementation, such as Figure 2 and Figure 3 The reflective surfaces of the first reflector 20 and the second reflector 30 are positioned opposite each other and face the conveyor mechanism 10, respectively. The reflective surfaces of the first reflector 20 and the second reflector 30 are at a 45° angle to the bearing surface of the conveyor mechanism 10. When the mirror surface is at a 45° angle to the bearing surface of the conveyor mechanism 10, light from the vertical direction can be accurately reflected to the horizontal direction, and vice versa. This allows barcode information on an object placed directly above the conveyor mechanism 10 to be captured by the first and second reflectors 30 and horizontally reflected to the third reflector 40 located to the side. Thus, a complete, curved optical path is cleverly constructed even when there is no direct line of sight between the scanner 70 and the workpiece. The 45° angle reflection ensures that the reflected image does not produce trapezoidal distortion or other geometric distortions. The scanner 70 receives an image with the same geometric proportions as the original object, which greatly improves the accuracy and speed of barcode parsing by the image recognition software and avoids scanning failures or efficiency reductions caused by image distortion.

[0050] In one possible implementation, the rotating mechanism 50 includes a motor and a reducer;

[0051] The motor output shaft is connected to the input end of the reducer;

[0052] The rotating shaft at the output end of the reducer is fixedly connected to the third reflector 40.

[0053] In this embodiment, the reducer significantly increases the motor's output torque by reducing the motor's speed, enabling the rotating shaft with the fixed third reflector 40 to overcome inertia, start and stop smoothly, and precisely stabilize at the preset scanning angle. This method of overcoming the rotational inertia of the third reflector 40 and precisely stabilizing at the preset scanning angle ensures the absolute accuracy of the light reflection path, which is the fundamental guarantee of scanning success rate. Furthermore, the motor constitutes a fast-response power source, while the reducer smooths the motor's motion characteristics, avoiding overshoot, jitter, or vibration that may occur during high-speed rotation. This allows the third reflector 40 to maintain extremely high stability while switching workstations at high speeds, preventing scanning failures due to mirror surface jitter, thus meeting the stringent stability requirements under high-speed cycle times. Finally, the motor and reducer can typically be integrated into a compact module, with a sophisticated structure that is easy to install and arrange within the limited space of the equipment, maintaining the overall miniaturization advantage of the device.

[0054] In a specific example, a servo motor is used, which has a built-in high-precision encoder that can provide real-time feedback on the motor shaft position, forming a closed-loop control to ensure that it can accurately stop at preset angles such as 0° and 90°, with an error of less than ±0.01°. The servo driver can finely adjust the motor's speed, acceleration, and torque, achieving extremely smooth start and stop, effectively avoiding shocks and vibrations. A planetary reducer is used. If the servo motor's rated output torque is 1 N·m, the planetary reducer's reduction ratio is 5:1, increasing the torque output to the third reflector 40 to approximately 5 N·m. This gives the system sufficient force to quickly overcome the reflector's inertia and stabilize it. The planetary reducer has a compact structure and high rigidity, enabling it to smoothly transmit the motor's motion and effectively suppress output jitter, ensuring the stability of the third reflector 40.

[0055] In one possible implementation, the rotating mechanism 50 is a rotary cylinder; specifically, the rotating shaft of the rotary cylinder is fixedly connected to the third reflector 40.

[0056] In one possible implementation, the third reflector 40 is a double-sided reflector; specifically, the first and second reflective surfaces of the double-sided reflector are respectively coated with an anti-reflection film 80, and the light band corresponding to the anti-reflection film 80 covers the light band corresponding to the barcode scanner 70. Since both sides of the double-sided reflector are coated with anti-reflection films 80, and these films can enhance the reflectivity of specific wavelengths, the application of anti-reflection films 80 can increase the overall scanning device's resistance to interference from ambient light and improve recognition accuracy.

[0057] In a specific example, the scanning device includes a first state and a second state, and the third reflector 40 is a double-sided reflector. Therefore, as... Figure 2 At this time, the motor is in the first state, and the third reflector 40 is parallel to the first reflector 20. The side closer to the first reflector 20 is the first reflecting surface, and the other side is the second reflecting surface. The drive motor rotates counterclockwise by 90°, making the third reflector 40 parallel to the second reflector 30. At this time, as... Figure 3 The motor is in the second state. In the first state, the first reflecting surface of the third reflecting mirror 40 is used for reflection. In the second state, the second reflecting surface of the third reflecting mirror 40 is used for reflection.

[0058] In one possible implementation, the third reflector 40 is a double-sided reflector; the anti-reflective coating 80 includes a first anti-reflective coating 81 and a second anti-reflective coating 82. The first reflective surface of the double-sided reflector is coated with the first anti-reflective coating 81, and the second reflective surface is coated with the second anti-reflective coating 82. The first anti-reflective coating 81 and the second anti-reflective coating 82 correspond to different optical wavelengths. The double-sided reflector is coated with anti-reflective coating 80 on both sides, and the anti-reflective coating 80 can enhance the reflectivity of specific wavelengths. Therefore, the setting of the anti-reflective coating 80 can increase the overall scanning device's resistance to interference from ambient light and improve recognition accuracy. The different optical wavelengths corresponding to the first anti-reflective coating 81 and the second anti-reflective coating 82 allow the barcode scanner 70 to be used in different working conditions, enhancing the versatility of the entire barcode scanner. It should be noted that in this embodiment, if the first reflective surface of the double-sided mirror is coated with a first anti-reflection film 81 and the second reflective surface is coated with a second anti-reflection film 82, and the light bands corresponding to the first anti-reflection film 81 and the second anti-reflection film 82 are different, then the reflective surface of the first reflective mirror 20 and the reflective surface of the second reflective mirror 30 will not be coated.

[0059] In a specific example, the barcode scanner 70 is detachably mounted on the scanning station 60. Specifically, the barcode scanner 70 can be either a red light barcode scanner 70 or an infrared barcode scanner 70, and the two types of scanners 70 can be used interchangeably. The first anti-reflective coating 81 covers the light band corresponding to the red light barcode scanner 70; the second anti-reflective coating 82 covers the light band corresponding to the infrared barcode scanner 70. In this embodiment, the red light emitted by the red light barcode scanner 70 is visible light, with a wavelength range of 625nm-740nm. It has low energy and minimal impact on living organisms. The corresponding wavelength band of the infrared barcode scanner 70 is typically located in the shortwave infrared (SWIR) region, specifically with a wavelength range of 1.4μm-3μm. This band is less affected by atmospheric attenuation and is suitable for daytime use.

[0060] Following the example above, in this embodiment, when the product being transported by the conveying mechanism 10 is a standard black and white barcode, paper, plastic, or similar material, a red light scanner 70 is applicable. The first anti-reflective coating 81 uses a red light band anti-reflective coating 80 that covers at least the 625nm-740nm wavelength range. In this case, only the first anti-reflective coating 81 reflects light. Specifically, the scanning device includes a first state and a second state, and the third reflector 40 is a double-sided reflector. Therefore, as... Figure 4 At this time, the motor is in the first state, the third reflector 40 is parallel to the first reflector 20, and the side of the third reflector 40 closer to the first reflector 20 is the first reflecting surface, which is coated with a first anti-reflection film 81; the other side is the second reflecting surface, which is coated with a second anti-reflection film 82; in this embodiment, only the first anti-reflection film 81 is used to reflect light, therefore... Figure 4 The drive motor rotates 90° clockwise, making the third reflector 40 parallel to the second reflector 30. At this point, as... Figure 5 The motor is in the second state. During this process, regardless of whether the scanning device is in the first or second state, the third reflector 40 only reflects on the first reflective surface, so only the first anti-reflection film 81 is used at this time.

[0061] Following the example above, if the conveying mechanism 10 is in an industrial environment and the product being conveyed is a barcode on a special material such as metal or ceramic, then an infrared barcode scanner 70 is suitable. The second anti-reflective coating 82 uses an anti-reflective coating 80 that covers at least the 1.4μm-3μm red light band. In this case, only the second anti-reflective coating 82 reflects light; specifically, the scanning device also includes a first state and a second state, and the third reflector 40 is a double-sided reflector. Therefore, as... Figure 6 At this time, the motor is in the first state, the third reflector 40 is parallel to the first reflector 20, and the side of the third reflector 40 closer to the first reflector 20 is the second reflecting surface, which is coated with a second anti-reflection film 82; the other side is the first reflecting surface, which is coated with a first anti-reflection film 81; in this embodiment, only the second anti-reflection film 82 is used to reflect light, therefore, Figure 6 The drive motor rotates 90° clockwise, making the third reflector 40 parallel to the second reflector 30. At this point, as... Figure 7 The motor is in the second state. During this process, regardless of whether the scanning device is in the first or second state, the third reflector 40 only reflects on the second reflective surface, and only the second anti-reflection film 82 is used in this process.

[0062] Following the above example, the barcode scanner 70 can also be a red light and infrared barcode scanner 70, with the two functions switchable; alternatively, the barcode scanner 70 can be detached from the scanning station 60. In this embodiment, the barcode scanner 70 includes both a red light barcode scanner and an infrared barcode scanner. Depending on the usage environment and the material of the product being scanned, the corresponding barcode scanner 70 is installed on the scanning station 60 to achieve switching between the two types of barcode scanners 70. The first anti-reflective coating 81 covers at least the light band corresponding to red light, i.e., 625nm-740nm; the second anti-reflective coating 82 covers at least the light band corresponding to the infrared barcode scanner 70, i.e., 1.4μm-3μm. Specifically, depending on the different usage scenarios and the materials of the products to be scanned in the above embodiments, anti-reflective coatings 80 with different reflective surfaces of the third reflector 40 can be used to improve the scanning accuracy for the corresponding usage scenarios and the corresponding products to be scanned.

[0063] In one possible implementation, the scanning device includes a first state and a second state, and the third reflector 40 is a one-sided reflector. Therefore, as... Figure 8 At this time, the motor is in the first state, the third reflector 40 is parallel to the first reflector 20, and the surface of the third reflector 40 closest to the first reflector 20 is the reflecting surface; the drive motor rotates 90° clockwise, making the third reflector 40 parallel to the second reflector 30. Figure 9 The motor is in the second state. During this process, regardless of whether the scanning device is in the first or second state, it will be reflected by the reflective surface of the third reflector 40.

[0064] In a specific example, the reflective surface of the third reflector 40 is coated with an anti-reflection film 80, and the optical band corresponding to the anti-reflection film 80 covers the optical band corresponding to the barcode scanner 70.

[0065] Following the example above, the scanning device includes a first state and a second state, and the third reflector 40 is a one-sided reflector. Therefore, as... Figure 8 At this time, the motor is in the first state, the third reflector 40 is parallel to the first reflector 20, and the surface of the third reflector 40 closest to the first reflector 20 is the reflective surface; the drive motor rotates 90° clockwise, making the third reflector 40 parallel to the second reflector 30, and an anti-reflection film 80 is coated on the reflective surface. Figure 9The motor is in the second state. During this process, regardless of whether the scanning device is in the first or second state, it will be reflected by the reflective surface of the third reflector 40. Therefore, the anti-reflective coating 80 on the reflective surface of the third reflector 40 will be used.

[0066] In one possible implementation, such as Figure 10 As shown, the reflective surfaces of the first reflector 20 and the second reflector 30 are respectively coated with anti-reflection films 80, and the light band corresponding to the anti-reflection films 80 covers the light band corresponding to the barcode scanner 70. The reflective surface of the third reflector 40 is also coated with an anti-reflection film 80. The anti-reflection films 80 can enhance the reflectivity of specific light bands, and the light bands corresponding to each anti-reflection film 80 respectively cover the light bands corresponding to the barcode scanner. Therefore, in this embodiment, the provision of anti-reflection films 80 on the reflective surfaces of the first reflector 20 and the second reflector 30 can increase the overall barcode scanning device's resistance to interference from ambient light and improve recognition accuracy.

[0067] In one possible implementation, the transmission mechanism 10 includes a plurality of first bearer bits 11 and a plurality of second bearer bits 12;

[0068] The plurality of first bearing positions 11 and the plurality of second bearing positions 12 are respectively distributed along the conveying direction of the conveying mechanism 10;

[0069] The reflective surface of the first reflector 20 faces the first bearing position 11 located at the barcode scanning station 60, and the reflective surface of the second reflector 30 faces the second bearing position 12 located at the barcode scanning station 60.

[0070] In a specific example, the first bearing also includes a linear displacement mechanism 13, with the first bearing position 11 and the second bearing position 12 mounted on the movable part of the linear displacement mechanism 13, so that the linear displacement mechanism 13 drives the first bearing position 11 and the second bearing position 12 to move.

[0071] In one possible implementation, such as Figure 1 In this embodiment, the first carrier position 11 and the second carrier position 12 are aligned with each other in the conveying direction of the conveying mechanism 10 and are not staggered. In contrast, in another embodiment, the first carrier position 11 and the second carrier position 12 are staggered in the conveying direction of the conveying mechanism 10. In this embodiment, the first carrier position 11 and the adjacent second carrier position 12 are not aligned. This allows the scanning device to spend a small amount of time rotating the third reflector 40 to scan the product at the second carrier position 12 after scanning the product at the first carrier position 11, thereby achieving continuous scanning without stopping the transmission mechanism.

[0072] Reference Figure 11 and Figure 12Taking the third reflecting mirror 40 as a single-sided reflecting mirror as an example, the scanning device includes a first state and a second state, such as... Figure 11 At this time, the motor is in the first state, and the third reflector 40 is parallel to the first reflector 20. The side of the third reflector 40 closest to the first reflector 20 is the reflective surface. The reflective surface of the third reflector 40 reflects the first light beam output by the barcode scanner 70 back to the first reflector 20. The first reflector 20 then perpendicularly incidents the first light beam reflected from the reflective surface of the third reflector 40 onto the barcode of the product to be tested located on the first bearing position 11. The first reflector 20 reflects the second light beam reflected from the product to be tested back to the reflective surface of the third reflector 40. The reflective surface of the third reflector 40 then reflects the second light beam reflected from the first reflector 20 back to the barcode scanner 70, thus enabling the barcode scanner 70 to scan the code. After the barcode scanner 70 completes scanning, it drives the motor to rotate 90° clockwise, making the third reflector 40 parallel to the second reflector 30. Figure 12 The motor is in the second state; the reflective surface of the third reflector 40 reflects the third beam output by the barcode scanner 70 to the second reflector 30, and the second reflector 30 reflects the third beam reflected from the reflective surface of the third reflector 40 perpendicularly onto the barcode of the product to be tested located on the second bearing position 12. The second reflector 30 reflects the fourth beam reflected by the product to be tested to the reflective surface of the third reflector 40, and the reflective surface of the third reflector 40 reflects the fourth beam reflected from the second reflector 30 to the barcode scanner 70. During this process, regardless of whether the barcode scanner is in the first state or the second state, it will be reflected by the reflective surface of the third reflector 40. Figures 2 to 10 The working principle is similar to that described above, so this embodiment will not elaborate further.

[0073] It should be noted that the reflectivity of the antireflective film 80 described in the above embodiments is greater than 90%.

[0074] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0075] It should also be noted that in the description of this utility model, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0076] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A code scanning device, characterized by, The barcode scanning station is located on the conveying mechanism. The barcode scanning device includes: a barcode scanner, a first reflector, a second reflector, a third reflector, and a rotating mechanism. The third reflector is fixed on the rotation axis of the rotating mechanism, the first reflector and the second reflector are respectively disposed on the side of the rotating mechanism closer to the conveying mechanism, and the barcode scanner is disposed on the side of the rotating mechanism away from the conveying mechanism. The conveying mechanism includes at least one first carrier position and at least one second carrier position. The first reflector is set corresponding to the first carrier position, and the second reflector is set corresponding to the second carrier position. The rotating mechanism is used to drive the third reflector to rotate so that the product information on at least one first carrier position and at least one second carrier position alternates and passes sequentially through the first reflector or the second reflector and the third reflector to the barcode scanner.

2. The code scanning apparatus of claim 1, wherein, The reflective surfaces of the first and second reflectors are arranged opposite each other and face the conveying mechanism respectively.

3. The barcode scanning device according to claim 2, characterized in that, The reflecting surfaces of the first and second reflectors are at a 45° angle to the bearing surface of the conveying mechanism.

4. The barcode scanning device according to claim 1, characterized in that, The rotating mechanism includes a rotary cylinder.

5. The barcode scanning device according to claim 1, characterized in that, The third reflecting mirror is a double-sided reflecting mirror.

6. The barcode scanning device according to claim 5, characterized in that, The first reflective surface of the double-sided mirror is coated with a first anti-reflection film, and the second reflective surface is coated with a second anti-reflection film. The first anti-reflection film and the second anti-reflection film correspond to different optical wavelengths.

7. The barcode scanning device according to claim 1, characterized in that, The reflective surface of the third reflector is coated with an anti-reflection film, and the optical wavelength corresponding to the anti-reflection film covers the optical wavelength corresponding to the barcode scanner.

8. The barcode scanning device according to claim 1, 5, or 7, characterized in that, The reflective surfaces of the first and second reflectors are respectively coated with anti-reflection films, and the light bands corresponding to the anti-reflection films respectively cover the light bands corresponding to the barcode scanner.

9. The barcode scanning device according to claim 8, characterized in that, The transmission mechanism includes multiple first carrier positions and multiple second carrier positions; Multiple first carrier positions and multiple second carrier positions are distributed along the conveying direction of the conveying mechanism; The reflecting surface of the first reflector faces the first bearing position located at the scanning station, and the reflecting surface of the second reflector faces the second bearing position located at the scanning station.

10. The barcode scanning device according to claim 9, characterized in that, The first and second carrier positions are arranged alternately in the conveying direction of the conveying mechanism.

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