Batch sample sorting device

Abstract

The utility model discloses a batch sample sorting device, belongs to the technical field of sample sorting, and solves the problem that compared with portable and handheld Raman spectrum detection, the batch sample sorting device has better detection efficiency after a large number of products to be detected are subjected to sample extraction and batch sorting. Comprising a machine shell, and a through channel is formed in the machine shell; the probe is arranged in the machine shell and located above the channel. The conveying mechanism penetrates through the channel; the sample box comprises a fixed part and a rotating part, the fixed part is arranged at the movable end of the conveying mechanism, the rotating part is rotationally connected into the fixed part, a plurality of detection positions for bearing samples are arranged on the rotating part, and the sample box is located below the probe. According to the device, samples can be sorted in batches, related personnel only need to load the samples, the samples do not need to be manually detected, and under the condition that the number of the samples to be detected is large, the detection efficiency of the samples can be obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sample sorting, in particular to a batch sample sorting device. Background Art

[0002] Currently, customs inspections of samples follow a multi-step process that covers a wide range of analytical techniques. Raman spectrometers, as one of these technologies, have been widely used in many fields due to their unique advantages. Using Raman spectroscopy for analysis, customs officials can obtain detailed information about the samples, which provides a solid basis for them to make accurate judgments and effective decisions. Therefore, customs officials often rely on portable Raman spectrometers, which support point-and-shoot and non-destructive sampling, allowing customs officials to quickly see through transparent sealed packaging and conduct rapid and accurate detection of various compounds.

[0003] However, in actual application, even a portable handheld Raman spectrometer still needs to be used with a sample bottle or glass slide as a carrier, so that the sampling part of the handheld Raman spectrometer, that is, the probe configured as a tubular protruding structure, can be used, and the sample bottle or glass slide needs to be manually fixed in front of the probe. For customs that need to conduct sample inspections on large quantities of products every day, a handheld Raman spectrometer can make it more portable, but it still cannot avoid the sample preparation with sample bottles or glass slides as carriers. Therefore, extracting samples from a large number of products to be inspected and then conducting batch inspection has better detection efficiency than portable and handheld Raman spectroscopy detection.

[0004] Therefore, a batch sample sorting device is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a batch sample sorting device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A batch sample sorting device, comprising

[0008] A casing, wherein a through passage is provided in the casing;

[0009] A probe is disposed in the housing and above the passage;

[0010] A conveying mechanism, wherein the conveying mechanism is arranged through the channel;

[0011] The sample box includes a fixed part and a rotating part. The fixed part is arranged on the movable end of the conveying mechanism. The rotating part is rotatably connected in the fixed part. There are several detection positions for carrying samples on the rotating part. When the sample box is located below the probe, the rotating part rotates to switch the several detection positions one by one.

[0012] Preferably, the fixed part comprises a box, and the rotating part comprises a turntable;

[0013] The top surface of the box body is recessed downward to form an open groove;

[0014] The turntable is rotatably connected in the open slot, and a plurality of partition plates located in the open slot are fixedly connected to the top surface of the turntable, and the partition plates divide the open slot into a plurality of detection positions.

[0015] Preferably, the fixing portion further comprises a plane bearing;

[0016] The plane bearing is fixedly connected in the open groove, and the turntable is placed on the plane bearing.

[0017] Preferably, the sample box further comprises a transmission assembly and a first servo motor;

[0018] One end of the transmission assembly is coaxially connected to the bottom surface of the turntable;

[0019] The first servo motor is arranged on the box body, and the output shaft of the first servo motor is transmission-connected to the other end of the transmission assembly.

[0020] Preferably, it also includes a connecting seat, a mounting frame, and a sealing plate;

[0021] The sealing plate is fixedly connected to the casing located on one side of the passage, and the sealing plate is located above the box body;

[0022] The connecting seat is fixedly connected to the casing located on the other side of the channel;

[0023] The mounting frame is fixedly connected to the connecting seat, the probe is detachably connected to the mounting frame, and the probe penetrates the sealing plate.

[0024] Preferably, it also includes

[0025] A metal sensor, the metal sensor is fixedly connected to the sealing plate and is disposed through the sealing plate;

[0026] A plurality of metal rods, each of which is fixedly connected to the top surface of the turntable and arranged in one-to-one correspondence with the detection positions, wherein one of the metal rods is located directly below the metal sensor;

[0027] A counting circuit, wherein an input end of the counting circuit is coupled to an output end of the metal sensor, and an upper counting limit of the counting circuit is the same as the number of detection bits;

[0028] A controller, wherein the input end of the controller is the same as the output end of the counting circuit, and the output end of the controller is wirelessly connected to the input end of the first servo motor.

[0029] Preferably, the counting circuit comprises a 74LS161 counter.

[0030] Preferably, it also includes a distance sensor;

[0031] The number of the sample boxes is several, and the several sample boxes are arranged at intervals on the movable end of the conveying structure;

[0032] The distance sensor is arranged on the first servo motor, and the output end of the distance sensor is wirelessly connected to the input end of the controller, and the output end of the controller is coupled to the input end of the transmission structure.

[0033] Preferably, the conveying structure comprises a conveyor belt and a second servo motor;

[0034] The conveyor belt is arranged through a through channel;

[0035] The second servo motor is arranged on the conveyor belt, and the output shaft of the second servo motor is drivingly connected to the conveyor belt, and the output end of the controller is coupled to the input end of the second servo motor.

[0036] Preferably, it also includes a cover;

[0037] The cover is rotatably connected in the housing, and the cover is located above the channel to close the opening of the top surface of the channel.

[0038] The utility model has the following beneficial effects:

[0039] The utility model enables relevant personnel to place samples of the same batch into the detection position of the sample box, and then place the sample box on the conveyor belt for edge-to-edge transmission, so that when it moves to the bottom of the sealing plate, the distance sensor detects that the top is restricted by the sealing cover and changes, and then drives the controller to control the second servo motor to stop working, and the probe emits laser downward, which returns after being scattered by the sample, and is recovered and imaged by the CCD detector to obtain the Raman spectrum of a certain sample, and then the metal sensor detects the metal rod on a certain detection position in the sample box, and the metal sensor drives the controller to control the first servo motor to rotate a certain angle, and then through the transmission component The turntable is driven to rotate to switch to the next detection position, and the above-mentioned actions of obtaining the Raman spectrum and metal detection are repeated until the counting circuit counts that the samples at all detection positions in the same sample box have completed the switching detection. The counting circuit is reset and drives the controller to control the second servo motor to work until the distance sensor on the next group of sample boxes detects the distance change, and repeats the above-mentioned actions, so that the device can perform batch inspection of samples, and relevant personnel only need to perform sample loading actions, and no manual inspection of samples is required. When the number of samples to be inspected is large, the inspection efficiency of samples can be significantly accelerated. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the structure of the utility model;

[0041] Figure 2 It is a cross-sectional view of the sample box in the utility model;

[0042] Figure 3 It is a structural block diagram of the utility model;

[0043] Figure 4 It is the wiring diagram of the counting circuit in the utility model.

[0044] 1. Casing; 2. Connecting seat; 3. Mounting frame; 4. Metal sensor; 5. Probe; 6. Grip plate; 7. Cover; 8. Closing plate; 9. Conveyor belt; 10. Box body; 11. Opening groove; 12. Partition plate; 13. Plane bearing; 14. Turntable; 15. Receiver plate; 16. Metal rod; 17. First bevel gear; 18. Second bevel gear; 19. First servo motor; 20. Counting circuit; 21. Controller; 22. Distance sensor; 23. Second servo motor. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0046] A batch sample sorting device, such as Figure 1 Shown, including

[0047] A housing 1, wherein a through passage is provided in the housing 1;

[0048] A probe 5 is disposed in the housing 1 and above the passage;

[0049] A transmission mechanism, wherein the transmission mechanism is arranged through the channel;

[0050] The sample box includes a fixed part and a rotating part. The fixed part is arranged on the movable end of the conveying mechanism. The rotating part is rotatably connected to the fixed part. There are several detection positions for carrying samples on the rotating part. When the sample box is located under the probe 5, the rotating part rotates to switch the several detection positions one by one.

[0051] Preferably, the fixed part includes a box 10, and the rotating part includes a turntable 14;

[0052] The top surface of the box body 10 is recessed downward to form an opening groove 11;

[0053] The turntable 14 is rotatably connected in the open slot 11, and a plurality of partition plates 12 located in the open slot 11 are fixedly connected to the top surface of the turntable 14. The partition plates 12 divide the open slot 11 into a plurality of detection positions. A plurality of receiving plates 15 are fixedly connected to the top surface of the turntable 14. The receiving plates 15 are arranged one by one corresponding to the detection positions. The receiving plates 15 are located directly below the probe 5, and the receiving plates 15 are used to receive samples.

[0054] The purpose of forming several detection positions by the partition plate 12 is to allow a certain batch of samples to be accommodated on the receiving plate 15 in the same sample box, and when several detection positions are rotated and switched one by one, it means that the probe 5 can detect the samples on all detection positions and obtain their corresponding Raman spectra. As long as there is only one sample on each detection position, each time the sample box arrives under the probe 5, the probe 5 can switch the detection position brought about by the rotation of the turntable 14 to achieve the detection of the samples therein, complete the batch sample sorting action, and improve the efficiency of sample detection to a certain extent.

[0055] Preferably, the fixing portion further includes a plane bearing 13;

[0056] The plane bearing 13 is fixedly connected in the open groove 11 , and the rotating disk 14 is placed on the plane bearing 13 .

[0057] The plane bearing 13 is provided to enable the turntable 14 to obtain a certain support in the open slot 11, and while being supported, it can also rotate smoothly.

[0058] Preferably, the sample box further comprises a transmission assembly and a first servo motor 19;

[0059] One end of the transmission assembly is coaxially connected to the bottom surface of the turntable 14;

[0060] The first servo motor 19 is disposed on the housing 10 , and the output shaft of the first servo motor 19 is drivingly connected to the other end of the transmission assembly.

[0061] The transmission assembly specifically includes a first bevel gear 17 and a second bevel gear 18. The bottom surface of the turntable 14 is fixedly connected to a vertical shaft coaxially arranged with the turntable 14. The first bevel gear 17 is fixedly connected to the vertical shaft, and the second bevel gear 18 is fixedly connected to the output shaft of the first servo motor 19. The first bevel gear 17 and the second bevel gear 18 are meshed with each other to achieve a transmission connection state.

[0062] When the first servo motor 19 passes, its output shaft will drive the second bevel gear 18 to rotate. Since the first bevel gear 17 is meshed with the second bevel gear 18 and is connected in transmission, even if the intersection line of the first bevel gear 17 and the second bevel gear 18 is vertical, the two can still transmit the transmission, thereby causing the vertical shaft to rotate coaxially, thereby driving the turntable 14 to rotate in the open slot 11, and the rotation of the turntable 14 is directly linked to the drive of the first servo motor 19. When the drive of the first servo motor 19 is cancelled, the turntable 14 will also come to a standstill.

[0063] Preferably, it also includes a connecting seat 2, a mounting frame 3, and a sealing plate 8;

[0064] The sealing plate 8 is fixedly connected to the housing 1 located at one side of the passage, and the sealing plate 8 is located above the box body 10;

[0065] The connecting base 2 is fixedly connected to the housing 1 located on the other side of the channel;

[0066] The mounting frame 3 is fixedly connected to the connecting base 2, and the mounting frame 3 is in a 7 shape. The probe 5 is detachably connected to the mounting frame 3. Specifically, a vertical through hole is opened on the flat plate portion of the mounting frame 3, and a threaded hole connected to the through hole is opened on the end surface of the flat plate portion of the mounting frame 3. The probe 5 is arranged through the through hole, and a threaded column that abuts against the outer peripheral wall of the probe 5 is connected to the threaded hole, and the threaded column is coaxially fixedly connected with a grip plate 6 sleeved on the outside thereof, and the probe 5 is arranged through the sealing plate 8.

[0067] The sealing plate 8 is provided to shield the opening on the top surface of the box body 10, so as to reduce the external visible light from entering the box body 10 through this place, and reduce the influence of the external environment on the laser emitted by the probe 5 and then recovered by the CCD detector to form an image after passing through the sample, and the height position of the probe 5 can be adjusted. The operator can adjust the tightening or loosening of the threaded column in the threaded hole by holding the grip plate 6, and then adjust the size of the friction force generated when the end face of the threaded column squeezes the outer wall of the probe 5 to ensure that the probe 5 is displaced or positioned in the through hole and remains stationary, and the connecting seat 2 and the mounting frame 3 are the carriers of the probe 5, which play a role in bearing and fixing it.

[0068] Preferably, it also includes

[0069] The metal sensor 4 is fixedly connected to the sealing plate 8 and is disposed through the sealing plate 8;

[0070] The number of metal rods 16 is several, and the several metal rods 16 are fixedly connected to the top surface of the turntable 14 and the metal rods 16 are arranged one by one corresponding to the detection positions, and one of the metal rods 16 is located directly below the metal sensor 4;

[0071] A counting circuit 20, wherein an input terminal of the counting circuit 20 is coupled to an output terminal of the metal sensor 4, and an upper counting limit of the counting circuit 20 is the same as the number of detection bits;

[0072] The controller 21 has an input terminal that is the same as the output terminal of the counting circuit 20 . The output terminal of the controller 21 is wirelessly connected to the input terminal of the first servo motor 19 . The controller 21 may be a 51 series single chip microcomputer.

[0073] The connection between the metal sensor 4, 74LS161 counter, distance sensor 22 and the controller 21 which is a single chip microcomputer are all prior art, and the single chip microcomputer controls the servo motor according to the sensor, which are all prior art. No improvement has been made in the program, so the content will not be repeated here.

[0074] Preferably, if Figure 4As shown, the counting circuit 20 includes a 74LS161 counter, and the cp pin of the 74LS161 counter is connected to the output end of the metal sensor 4. The hexadecimal counter circuit diagram composed of the feedback setting method is adopted. When the count reaches Q3, Q2, Q1, Q0=0101, Ld=0 is set. When the next counting pulse CP rising edge arrives, the counter is set to 0000 state. The counter has 6 stable states of 0000~0101, that is, a hexadecimal counter. The setting control terminal Ld is controlled to be connected to a low level, forcing the counter to perform parallel setting when the counting pulse CP rising edge arrives. When Ld=0 disappears, the counter starts counting from the set number, forming an arbitrary base counter that can skip several states.

[0075] Preferably, a distance sensor 22 is also included;

[0076] The number of sample boxes is several, and the several sample boxes are arranged at intervals on the movable end of the conveying structure;

[0077] The distance sensor 22 is disposed on the first servo motor 19 , and the output end of the distance sensor 22 is wirelessly connected to the input end of the controller 21 , and the output end of the controller 21 is coupled to the input end of the transmission structure.

[0078] The above-mentioned wireless communication connection method is not limited to a certain wireless connection method, for example, it includes 4G / 5G, Wi-Fi, Bluetooth and other wireless connection technologies, and each distance sensor is coupled to the controller 21. Whenever a distance sensor 22 follows the sample box to move under the sealing plate 8 or the cover 7, it will generate a distance signal to the controller 21, and the controller 21 will judge the distance signal, or compare it with the voltage comparator, or compare it through the controller 21 itself, and then the controller 21 controls the second servo motor 23 to stop working, so as to carry out the subsequent switching of each detection position in the same sample box to complete the batch detection action.

[0079] Preferably, the conveying structure comprises a conveyor belt 9 and a second servo motor 23;

[0080] The conveyor belt 9 is arranged through the through-channel, and the conveyor belt 9 comprises a frame, two rotating shafts rotatably connected in the frame, a belt sleeved on the outer sides of the two rotating shafts, a sprocket wheel fixedly connected to the rotating shaft, and a chain drivingly connecting the sprocket wheels on both sides;

[0081] The second servo motor 23 is arranged on the conveyor belt 9 , and the output shaft of the second servo motor 23 is transmission connected to the conveyor belt 9 . Specifically, the output shaft of the second servo motor 23 is coaxially transmission connected to one of the rotating shafts, and the output end of the controller 21 is coupled to the input end of the second servo motor 23 .

[0082] The movement of the transmission structure is controlled by the opening and closing of the second servo motor 23. Once the second servo motor 23 needs to work, it only needs to make its output shaft drive one of the rotating shafts to rotate. Then, driven by the chain and sprocket, the other rotating shaft will inevitably rotate, and the belts mounted on the outside of the two rotating shafts will also rotate accordingly, and the sample box placed on the belt can also move accordingly.

[0083] Preferably, it also includes a cover 7;

[0084] The cover 7 is rotatably connected in the housing 1, and the cover 7 is located above the channel to close the top opening of the channel.

[0085] The setting of the cover 7 enables it to isolate the external light source to a certain extent, reducing the weakening effect of the external light source on the laser emitted by the probe 5, and the rotating connection of the cover 7 allows it to be between an openable and a closable state, which can also provide the operator with a more spacious operating space when disassembling the probe 5.

[0086] The utility model is designed to simplify and accelerate the sample detection process. A batch of samples are uniformly placed in the detection position of the sample box, and then the sample box is positioned at the edge of the conveyor belt 9 for continuous transmission. When the sample box moves below the sealing plate 8, the distance sensor 22 immediately senses the position change, triggering the controller 21 to instruct the second servo motor 23 to stop running.

[0087] At this time, the probe 5 emits a laser beam, which penetrates the sample and captures the Raman spectrum reflected after scattering, which is captured by the CCD detector and generates an image.

[0088] Once the metal sensor 4 detects the metal marker in the detection position in the sample box, the controller 21 activates the first servo motor 19 to rotate it to a specific angle and drives the turntable 14 to rotate to the next detection position through the transmission component, and then repeats the Raman spectrum collection and metal detection process.

[0089] This cycle continues until the counting circuit 20 confirms that the samples in all the test slots in the sample box have completed the test, and then triggers the counting circuit 20 to reset to zero and start the second servo motor 23 to prepare for receiving the next batch of sample boxes.

[0090] This process is restarted when the distance sensor 22 detects a distance change again.

[0091] The automated design of this device not only greatly improves the efficiency of batch sample testing, but also reduces the workload of operators. It only requires the loading of samples without the need to manually test them one by one. This is particularly suitable for scenarios where the number of samples to be tested is huge.

[0092] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A batch sample sorting device, comprising: A casing (1), wherein a through passage is provided in the casing (1); A probe (5), the probe (5) being arranged in the housing (1) and located above the channel; A conveying mechanism, wherein the conveying mechanism is arranged through the channel; A sample box, the sample box comprising a fixed part and a rotating part, the fixed part being arranged on the movable end of a conveying mechanism, the rotating part being rotatably connected inside the fixed part, a plurality of detection positions for carrying samples being provided on the rotating part, and when the sample box is located below a probe (5), the rotating part rotates to switch the plurality of detection positions one by one.

2. A batch sample sorting device according to claim 1, characterized in that: The fixed part comprises a box body (10), and the rotating part comprises a rotating disk (14); The top surface of the box body (10) is recessed downward to form an open groove (11); The rotating disk (14) is rotatably connected in the open slot (11), and a plurality of partition plates (12) located in the open slot (11) are fixedly connected to the top surface of the rotating disk (14), and the partition plates (12) divide the open slot (11) into a plurality of detection positions.

3. A batch sample sorting device according to claim 2, characterized in that: The fixing portion further comprises a plane bearing (13); The plane bearing (13) is fixedly connected in the open groove (11), and the rotating disk (14) is placed on the plane bearing (13).

4. A batch sample sorting device according to claim 2, characterized in that: The sample box also includes a transmission assembly and a first servo motor (19); One end of the transmission assembly is coaxially connected to the bottom surface of the turntable (14); The first servo motor (19) is arranged on the box body (10), and the output shaft of the first servo motor (19) is drivingly connected to the other end of the transmission assembly.

5. A batch sample sorting device according to claim 4, characterized in that: It also includes a connecting seat (2), a mounting frame (3), and a sealing plate (8); The sealing plate (8) is fixedly connected to the casing (1) located on one side of the passage, and the sealing plate (8) is located above the box body (10); The connecting seat (2) is fixedly connected to the casing (1) located on the other side of the channel; The mounting frame (3) is fixedly connected to the connecting seat (2), the probe (5) is detachably connected to the mounting frame (3), and the probe (5) is arranged to penetrate the sealing plate (8).

6. A batch sample sorting device according to claim 5, characterized in that: Also includes A metal sensor (4), wherein the metal sensor (4) is fixedly connected to the sealing plate (8) and is disposed through the sealing plate; A metal rod (16), wherein the number of the metal rods (16) is several, the several metal rods (16) are all fixedly connected to the top surface of the rotating disk (14), and the metal rods (16) are arranged in a one-to-one correspondence with the detection positions, wherein one of the metal rods (16) is located directly below the metal sensor (4); A counting circuit (20), wherein an input end of the counting circuit (20) is coupled to an output end of the metal sensor (4), and an upper counting limit of the counting circuit (20) is the same as the number of detection bits; A controller (21), wherein the input end of the controller (21) is the same as the output end of the counting circuit (20), and the output end of the controller (21) is wirelessly connected to the input end of the first servo motor (19).

7. A batch sample sorting device according to claim 6, characterized in that: The counting circuit (20) comprises a 74LS161 counter.

8. A batch sample sorting device according to claim 6, characterized in that: Also includes a distance sensor (22); The number of the sample boxes is several, and the several sample boxes are arranged at intervals on the movable end of the conveying structure; The distance sensor (22) is arranged on the first servo motor (19), and the output end of the distance sensor (22) is wirelessly connected to the input end of the controller (21), and the output end of the controller (21) is coupled to the input end of the transmission structure.

9. A batch sample sorting device according to claim 8, characterized in that: The conveying structure comprises a conveyor belt (9) and a second servo motor (23); The conveyor belt (9) is arranged to penetrate the through-channel; The second servo motor (23) is arranged on the conveyor belt (9), and the output shaft of the second servo motor (23) is transmission-connected to the conveyor belt (9), and the output end of the controller (21) is coupled to the input end of the second servo motor (23).

10. The batch sample sorting device according to claim 1, characterized in that: Also includes a cover (7); The sealing cover (7) is rotatably connected in the housing (1), and the sealing cover (7) is located above the channel to close the opening on the top surface of the channel.

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