Motion platform for Raman spectrum detection device and Raman detection equipment

Abstract

The utility model provides a motion platform for a Raman spectrum detection device, which comprises a support frame used for supporting the Raman spectrum detection device and the motion platform; the moving platform comprises a transverse moving part and a longitudinal moving part; the transverse moving part is arranged above the front surface of the support frame and is used for driving a Raman head in the Raman spectrum detection device to transversely move; the longitudinal moving part is used for driving an external sample perforated plate to move longitudinally; and the transverse moving part drives the Raman head to move, so that light emitted by the Raman head irradiates holes in the porous plate. During use, the transverse moving part and the longitudinal moving part are arranged on the support frame to respectively drive a Raman head in the Raman spectrometer and a sample perforated plate for storing samples, so that cross points are sequentially generated between holes of the Raman head and the sample perforated plate to sequentially perform Raman spectrum detection on the samples in the holes; therefore, batch and rapid detection of samples can be realized.

Description

Technical Field

[0001] This utility model relates to the field of Raman spectrometer technology, and in particular to a motion platform and Raman detection device for Raman spectroscopy detection. Background Technology

[0002] A Raman spectrometer is a medical instrument primarily used in research institutes, university physics and chemistry laboratories, and in the fields of biology and medicine for optical research, determining and confirming the composition of substances. It can also be applied in criminal investigation and the jewelry industry for drug detection and gemstone identification. This instrument is renowned for its simple structure, ease of operation, rapid, efficient, and accurate measurements, particularly its low wavenumber measurement capabilities.

[0003] Traditional Raman spectroscopy detection devices require placing the sample below the Raman light emitter of the spectrometer before detection. This method can only detect individual samples, resulting in relatively low detection efficiency. Utility Model Content

[0004] To improve the efficiency of Raman spectroscopy detection of samples, this application proposes a motion platform for a Raman spectroscopy detection device, which drives the sample and the Raman light generator to move relative to each other, enabling batch detection and improving the efficiency of sample Raman spectroscopy detection.

[0005] To achieve the above and other related objectives, this utility model provides a motion platform for a Raman spectroscopy detection device, comprising:

[0006] The support frame is used to support the Raman spectroscopy detection device and the motion platform;

[0007] The motion platform includes a lateral moving part and a longitudinal moving part, wherein:

[0008] The lateral moving part is located above the front of the support frame, and the lateral moving part is used to drive the Raman head in the Raman spectroscopy detection device to move laterally;

[0009] The longitudinal moving part is located at the inner bottom of the support frame, and the longitudinal moving part is used to drive the external sample multi-hole plate to move longitudinally.

[0010] The lateral moving part drives the Raman head to move, so that the light emitted by the Raman head illuminates the holes in the porous plate.

[0011] Preferably, the lateral moving part includes a lateral slide rail, a drive motor, a moving slider and a traction belt. The number of lateral slide rails is two, and the two lateral slide rails are arranged parallel to each other. Both ends of each lateral slide rail are fixedly connected to the inner walls of the left and right sides of the support frame, respectively.

[0012] The drive motor in the lateral movement section is mounted on the support frame, and the drive motor is located on the side of one end of the support frame;

[0013] The movable slider in the lateral moving part is disposed on two lateral slide rails, and the movable slider slides along the axial direction of the lateral slide rails;

[0014] The traction belt in the lateral movement section can be driven by a drive motor, the moving slider is connected to the drive motor, and the moving slider can be pulled and moved by the moving traction belt.

[0015] Preferably, the longitudinal moving part includes a longitudinal slide rail, a drive motor, a moving slider and a traction belt. The number of longitudinal slide rails is two, and the two longitudinal slide rails are arranged parallel to each other. Both longitudinal slide rails are located at the inner bottom of the support frame. Each longitudinal slide rail has a support block at both ends to support the longitudinal slide rail and raise the height of the longitudinal slide rail.

[0016] The drive motor in the longitudinal moving part is installed at the rear of the bottom of the support frame;

[0017] The movable slider in the longitudinal moving part is mounted on two longitudinal slide rails, and the movable slider can slide along the axial direction of the movable slider.

[0018] The traction belt in the longitudinal moving part can be driven by a drive motor, the moving slider is connected to the drive motor, and the moving slider can be pulled and moved by the moving traction belt.

[0019] Preferably, one end of all the traction belts is connected to the output shaft of the drive motor, and the other end of all the traction belts is provided with a pulley support;

[0020] All of the drive motors have teeth on their outer output shafts and in the belt grooves of their pulleys, and the traction belt has grooves on its inner wall that match the teeth.

[0021] Preferably, a Raman head support is provided on the front side of the movable slider in the lateral moving part, the Raman head support being used to support the Raman head and define the installation position of the Raman head.

[0022] Preferably, a sample porous plate support is provided above the movable slider in the lateral moving part, and the sample porous plate support can support the sample porous plate.

[0023] Preferably, the top of the sample porous plate support is provided with a cavity plate limiting groove, which can limit the sample porous plate.

[0024] Preferably, the drive motors in the lateral moving part and the longitudinal moving part are both servo motors, and both drive motors are equipped with a compatible PLC control board.

[0025] Preferably, both the lateral moving part and the longitudinal moving part are equipped with coordinate initialization modules on their drive motors.

[0026] A Raman detection device comprising all the feature structures of the motion platform mentioned above.

[0027] As described above, the motion platform for a Raman spectroscopy detection device of this invention has the following beneficial effects:

[0028] 1. This utility model, by setting a transverse moving part and a longitudinal moving part on the support frame, drives the Raman head in the Raman spectrometer and the sample multi-well plate storing the sample respectively, so that the Raman head and the holes of the sample multi-well plate sequentially generate intersection points, and the sample in the holes is sequentially Raman spectroscopy detected, thereby realizing batch and rapid detection of samples, and achieving the effect of improving detection efficiency.

[0029] Meanwhile, a sample multi-well plate support is set on the moving slider of the longitudinal moving part, and a cavity plate limiting groove is set on the sample multi-well plate support to limit the sample multi-well plate. When placing the sample multi-well plate, the uniqueness of the placement position and angle of the sample multi-well plate can be ensured, thereby improving the detection accuracy.

[0030] 2. This utility model installs a coordinate initialization module on the drive motor. Each time a test is required or after the test is completed, the coordinate initialization module controls the drive motor to move the moving slider to one end of the device to reset the coordinates to zero. This ensures that the moving slider is at the zero point position during non-testing periods, thereby improving the accuracy of the drive motor driving the moving slider.

[0031] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description

[0032] Figure 1 The diagram shows the structure of this invention after it is assembled with a Raman spectrometer.

[0033] Figure 2 The image shown is a front view of the structure of this utility model after it is assembled with a Raman spectrometer.

[0034] Figure 3 This utility model is shown. Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0035] Figure 4 The image shown is a rear view of the structure of this utility model after it has been assembled with the support frame.

[0036] Figure 5 This utility model is shown. Figure 4Enlarged schematic diagram of the structure at point B.

[0037] Figure 6 The image shown is a top view of the structure of this utility model after it is assembled with the support frame.

[0038] Figure 7 This utility model is shown. Figure 6 Enlarged schematic diagram of the structure at point C.

[0039] Component designation explanation:

[0040] 1. Support frame; 2. Horizontal slide rail; 3. Longitudinal slide rail; 4. Support block; 5. Drive motor; 6. Moving slider; 7. Traction belt; 8. Raman head support seat; 9. Sample multi-hole plate support seat; 10. Hole plate limiting groove; 11. Coordinate initialization module. Detailed Implementation

[0041] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0042] Please see Figures 1 to 7 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0043] like Figures 1-2 , Figure 4 and Figure 6As shown, this utility model provides a motion platform for a Raman spectroscopy detection device, including: a support frame 1, which is a frame structure including a bottom plate and vertical support plates on both sides. The support frame 1 supports the Raman spectroscopy detection device and the motion platform. The motion platform includes a lateral moving part and a longitudinal moving part. The lateral moving part and the longitudinal moving part are arranged in a cross shape when viewed from above. The lateral moving part is installed on the upper part directly in front of the vertical support plates on both sides of the support frame 1. The lateral moving part is used to drive the Raman head in the Raman spectroscopy detection device to move laterally. The Raman head is connected to the Raman analyzer and the laser emitter through an optical fiber. The longitudinal moving part is located on the top of the inner bottom plate of the support frame 1, and is used to drive the external sample multi-well plate to move longitudinally. The sample to be detected is injected into the holes of the sample multi-well plate. The lateral and longitudinal moving parts can respectively drive the Raman head and the sample multi-well plate to generate several intersection points during movement. When the Raman head intersects with the holes of the sample multi-well plate at a predetermined position, the Raman head emits laser light and receives the laser light reflected back from the sample, thus completing one detection. After one detection is completed, the lateral and longitudinal moving parts continue to drive the Raman head and the sample multi-well plate to the next detection point via the moving slider 6 for Raman spectroscopy detection of the sample. To improve the safety of the equipment, the entire device is protected by an outer casing.

[0044] like Figures 1-2 , Figures 4-6 As shown, in some embodiments, the lateral moving part of this utility model includes a lateral slide rail 2, a drive motor 5, a moving slider 6, and a traction belt 7. The lateral slide rail 2 is used to support and guide the moving slider 6. There are two lateral slide rails 2, which are arranged parallel to each other, thereby effectively supporting the moving slider 6 and avoiding rotation or tilting of the moving slider 6 caused by supporting it with only one lateral slide rail 2. Furthermore, both ends of each lateral slide rail 2 are fixedly connected to the inner walls of the left and right sides of the support frame 1, thereby enabling the moving slider 6 to move laterally to the maximum extent and improving the detection range.

[0045] Specifically, the drive motor 5 is mounted on the support frame 1, and the drive motor 5 is located on the side of one end of the support frame 1. The movable slider 6 is set on two transverse slide rails 2, and the movable slider 6 slides along the axial direction of the transverse slide rails 2. When the drive motor 5 operates and generates driving force, the traction belt 7 can be driven by the drive motor 5. At this time, the movable slider 6 is connected to the drive motor 5, causing the movable slider 6 to be pulled and moved by the moving traction belt 7, thereby driving the Raman head mounted on the movable slider 6 to move accordingly.

[0046] like Figures 1-4 and Figure 6As shown, in some embodiments, the longitudinal moving part of this utility model includes a longitudinal slide rail 3, a drive motor 5, a moving slider 6, and a traction belt 7. There are two longitudinal slide rails 3, which are arranged parallel to each other. The longitudinal slide rails 3 and the transverse slide rails 2 have different installation directions, forming a cross shape when viewed from above, but they have the same function. Both longitudinal slide rails 3 are located at the inner bottom of the support frame 1, and each longitudinal slide rail 3 has support blocks 4 at both ends to support it and raise its height. This allows the moving slider 6 to slide on the longitudinal slide rails 3 without interference from the base.

[0047] Specifically, the drive motor 5 is installed at the rear of the bottom of the support frame 1. The movable slider 6 is mounted on two longitudinal slide rails 3 and can slide along the axial direction of the movable slider 6. The traction belt 7 is driven by the drive motor 5, the movable slider 6 is connected to the drive motor 5, and the movable slider 6 can be pulled and moved by the moving traction belt 7. This structure has the same function as the structure of the same name in the transverse moving part, and is used to move the sample perforated plate.

[0048] like Figures 2-4 As shown, in some embodiments, one end of the traction belt 7 is connected to the output shaft of the drive motor 5, and the other end of the traction belt 7 is provided with a pulley support. This structure supports the traction belt 7, keeping it taut. When the traction belt 7 drives the moving slider 6, the taut traction belt 7 moves more accurately. Furthermore, the pulley is connected to the support frame 1 via a bearing seat, allowing the pulley itself to rotate, thus reducing friction during the transmission of the traction belt 7.

[0049] It is important to note that the outer surface of the output shaft of the drive motor 5 and the belt groove of the pulley are both provided with teeth, and the inner wall of the traction belt 7 is provided with grooves that match the teeth. Power is output through the meshing between the teeth and the grooves. Compared with power transmission relying solely on friction, the power output is more stable and will not produce movement errors due to changes in friction.

[0050] like Figures 1-2 As shown, in some embodiments, the front of the movable slider 6 in the lateral moving part of this invention is provided with a Raman head support 8, which supports the Raman head and defines its installation position. The bottom of the Raman head support 8 has a through hole for the generating and receiving ends of the Raman head to pass through, further defining the installation position of the Raman head. The front of the Raman head support 8 is provided with a clamp to fix the Raman head. Using the Raman head support 8 to support the Raman head provides greater stability and more accurate installation position compared to directly fixing the Raman head with the movable slider 6.

[0051] like Figures 1-2 As shown, in some embodiments, a sample porous plate support 9 is provided above the movable slider 6 in the lateral moving part of this invention. The sample porous plate support 9 can support the sample porous plate. By providing the sample porous plate support 9, the support area for the sample porous plate is increased, thereby enabling the sample porous plate to move stably.

[0052] like Figure 6 As shown, in some embodiments, the top of the sample porous plate support 9 of this utility model is provided with a cavity plate limiting groove 10, which can limit the position of the sample porous plate. When placing the sample porous plate, the shape of the cavity plate limiting groove 10 is adapted to the outer contour of the sample porous plate, so that the sample porous plate can only be placed inside the cavity plate limiting groove 10 by displacement angle. This also results in the unique position of the cavity on the sample porous plate, which facilitates the setting of the drive motor 5 during the detection process.

[0053] like Figure 2 , Figure 4 , Figures 6-7 As shown, in some embodiments, the drive motors 5 in both the lateral and longitudinal moving parts of this invention are servo motors, and both drive motors 5 are equipped with compatible PLC control boards. When performing Raman spectroscopy detection on the sample, the drive motors 5 are driven and set via the PLC control board, enabling the Raman head and the sample well plate to move precisely according to the settings. When the wells in the sample well plate contain sample, by separately setting the two drive motors 5, the Raman head and the sample well plate can be moved to a designated position for detection, effectively improving detection efficiency and eliminating the need to sequentially scan all the wells in the sample well plate.

[0054] To improve the accuracy of the drive motor 5 in driving the moving slider 6, both the horizontal and vertical moving parts of this invention are equipped with a coordinate initialization module 11 on the drive motor 5. Specifically, the coordinate initialization module 11 is a control board with servo motor torque control logic, such as the MS1H3-75C15CD-A331R-ZL model of the Huichuan MS1-ZL series servo motor, which supports torque control. When the device is powered on before sample testing or powered off after sample testing, the coordinate initialization module 11 drives the drive motor 5 to work, driving the moving slider 6 to the zero coordinate point set in the program and continuing to move until the torque of the drive motor 5 suddenly increases, at which point the drive motor 5 is stopped. This ensures that the coordinates are calibrated every time the equipment is used, avoiding inaccurate coordinate positioning due to a loose traction belt 7.

[0055] A Raman spectroscopy device comprising all the feature structures of the motion platform mentioned above.

[0056] The specific usage process of this utility model is as follows:

[0057] The sample perforated plate support 9 is moved to the outside of the housing by the drive motor 5 in the longitudinal moving part;

[0058] Place the sample multi-well plate with the sample in the cavity plate limiting groove 10 at the top of the sample multi-well plate support 9, and ensure that the installation angle and position of the sample multi-well plate are accurate.

[0059] The sample porous plate support 9 is driven by the drive motor 5 in the longitudinal moving part to move the sample porous plate into the inside of the equipment shell. At this time, both the lateral moving part and the longitudinal moving part are reset by the coordinate initialization module 11.

[0060] The drive motor 5 in the lateral moving part drives the Raman head to move laterally, and detects the pores in the sample multi-well plate one by one.

[0061] After the Raman head finishes detecting a row of samples in the horizontal direction, it stops and waits. The drive motor 5 in the vertical moving part drives the sample porous plate to move a row of holes in the vertical direction. Then, the drive motor 5 in the horizontal moving part drives the Raman head again to perform the above-mentioned detection steps until all samples are detected.

[0062] or

[0063] By setting the drive motors 5 in the transverse and longitudinal moving parts respectively, the Raman head and the sample multi-well plate are moved to the designated position by the drive motors 5, and the sample in the designated well is detected.

[0064] After the final test is completed, the drive motor 5 in the longitudinal moving part drives the sample multi-well plate to the outside of the equipment, removes the sample multi-well plate, and shuts down the machine;

[0065] During the shutdown process, the coordinate initialization module 11 drives all drive motors 5 to perform coordinate initialization.

[0066] In summary, the motion platform for the Raman spectroscopy detection device of this invention, by setting a transverse moving part and a longitudinal moving part on the support frame 1, drives the Raman head in the Raman spectrometer and the sample well plate storing the sample respectively, so that the Raman head and the well plate of the sample well plate sequentially generate intersection points to sequentially perform Raman spectroscopy detection on the sample in the well, thereby realizing batch and rapid detection of samples and achieving the effect of improving detection efficiency.

[0067] Meanwhile, a sample multi-well plate support 9 is set on the moving slider 6 of the longitudinal moving part, and a cavity plate limiting groove 10 is set on the sample multi-well plate support 9 to limit the sample multi-well plate. When placing the sample multi-well plate, the uniqueness of the placement position and angle of the sample multi-well plate can be ensured, thereby improving the detection accuracy.

[0068] This invention installs a coordinate initialization module 11 on the drive motor 5. Each time a test is required or after a test is completed, the coordinate initialization module 11 controls the drive motor 5 to drive the moving slider 6 to move to one end of the device to reset the coordinates to zero. This ensures that the moving slider 6 is at the zero point position during non-testing periods, thereby improving the accuracy of the drive motor 5 in driving the moving slider 6.

[0069] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0070] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A motion platform for a Raman spectroscopy detection device, characterized in that, include: Support frame (1), the support frame (1) is used to support the Raman spectroscopy detection device and the motion platform; The motion platform includes a lateral moving part and a longitudinal moving part, wherein: The lateral moving part is located above the front of the support frame (1), and the lateral moving part is used to drive the Raman head in the Raman spectroscopy detection device to move laterally; The longitudinal moving part is located at the inner bottom of the support frame (1), and the longitudinal moving part is used to drive the external sample multi-hole plate to move longitudinally; The lateral moving part drives the Raman head to move, so that the light emitted by the Raman head illuminates the holes in the porous plate.

2. The motion platform for the Raman spectroscopy detection device according to claim 1, characterized in that: The lateral moving part includes a lateral slide rail (2), a drive motor (5), a moving slider (6) and a traction belt (7). There are two lateral slide rails (2), which are arranged parallel to each other, and both ends of each lateral slide rail (2) are fixedly connected to the inner walls of the left and right sides of the support frame (1). The drive motor (5) in the lateral movement section is mounted on the support frame (1), and the drive motor (5) is located on the side of one end of the support frame (1); The movable slider (6) in the transverse moving part is set on two transverse slide rails (2), and the movable slider (6) slides along the axial direction of the transverse slide rails (2); The traction belt (7) in the lateral movement section can be driven by the drive motor (5), the moving slider (6) is connected to the drive motor (5), and the moving slider (6) can be pulled and moved by the moving traction belt (7).

3. The motion platform for the Raman spectroscopy detection device according to claim 1, characterized in that: The longitudinal moving part includes a longitudinal slide rail (3), a drive motor (5), a moving slider (6) and a traction belt (7). There are two longitudinal slide rails (3), which are arranged parallel to each other. Both longitudinal slide rails (3) are located at the bottom of the support frame (1). Each longitudinal slide rail (3) has a support block (4) at both ends to support the longitudinal slide rail (3) and raise the height of the longitudinal slide rail (3). The drive motor (5) in the longitudinal moving part is installed at the rear of the bottom of the support frame (1); The movable slider (6) in the longitudinal moving part is arranged on two longitudinal slide rails (3), and the movable slider (6) can slide along the axial direction of the movable slider (6); The traction belt (7) in the longitudinal moving part can be driven by the drive motor (5), the moving slider (6) is connected to the drive motor (5), and the moving slider (6) can be pulled and moved by the moving traction belt (7).

4. The motion platform for a Raman spectroscopy detection device according to any one of claims 2-3, characterized in that: One end of all the traction belts (7) is connected to the output shaft of the drive motor (5), and the other end of all the traction belts (7) is provided with a pulley support; All of the drive motors (5) have teeth on the outer surface of their output shafts and in the belt grooves of their pulleys, and the inner wall of the traction belt (7) has grooves that match the teeth.

5. The motion platform for the Raman spectroscopy detection device according to claim 4, characterized in that: The front of the movable slider (6) in the transverse moving part is provided with a Raman head support (8), which is used to support the Raman head and define the installation position of the Raman head.

6. The motion platform for the Raman spectroscopy detection device according to claim 4, characterized in that: A sample perforated plate support seat (9) is provided above the movable slider (6).

7. The motion platform for a Raman spectroscopy detection device according to claim 6, characterized in that: The top of the sample porous plate support (9) is provided with a cavity plate limiting groove (10).

8. The motion platform for the Raman spectroscopy detection device according to claim 4, characterized in that: The drive motors (5) in the horizontal and vertical moving parts are both servo motors, and both drive motors (5) are equipped with a compatible PLC control board.

9. The motion platform for a Raman spectroscopy detection device according to claim 8, characterized in that: Both the lateral and longitudinal moving parts are equipped with coordinate initialization modules (11) on the drive motors (5).

10. A Raman detection device, characterized in that: The Raman detection device includes the motion platform as described in any one of claims 1-9.

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