Milk product fat detection workstation

Abstract

The utility model relates to the technical field of dairy product processing, and provides a dairy product fat detection workstation which comprises a test bed, and a manipulator, a plurality of accommodating stations, a balance, an alkaline hydrolysis unit and an extraction unit which are arranged on the test bed, the plurality of accommodating stations are respectively used for accommodating various containers and bottle plugs, and the alkaline hydrolysis unit is used for extracting a to-be-detected sample, adding a first reagent into the to-be-detected sample, and oscillating, heating and cooling the to-be-detected sample; the extraction unit is used for adding a second reagent into the to-be-detected sample to obtain a mixed solution, oscillating the mixed solution, extracting an upper-layer separation solution, and heating and drying the separation solution to obtain an extracting solution; the manipulator is used for clamping the container and is also used for cooperating with the alkaline hydrolysis unit and the extraction unit to act. According to the dairy product fat detection workstation, manual operation is not needed in the whole process, the detection efficiency of fat content detection on dairy products is improved, and the labor intensity of operators is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dairy product processing technical field especially relates to a dairy product fat detection workstation. BACKGROUND

[0002] At present, the detection of fat content in dairy products is usually manually operated, and the detection of fat content mainly includes three major processes: alkaline hydrolysis, fat extraction and weighing. The three major processes include multiple steps, each of which is manually operated by artificial, resulting in low detection efficiency and seriously restricting the improvement of production capacity. SUMMARY

[0003] The utility model provides a kind of dairy product fat detection workstation to solve the defect that manual operation in prior art causes low detection efficiency.

[0004] The utility model provides a kind of dairy product fat detection workstation, it include: test table and be set on the mechanical hand, multiple containing station, balance, alkaline hydrolysis unit and extraction unit of the test table;Multiple the containing station is used for containing multiple containers and stopper respectively, and multiple the container includes: centrifugal tube, test tube and triangular bottle;The balance is used for weighing the weight of the container and extraction liquid;The alkaline hydrolysis unit is used to extract the sample to be measured from the centrifugal tube into the test tube, add first reagent to the sample to be measured, the stopper is set in the tube mouth of test tube, and the alkaline hydrolysis unit is also used to oscillate, heat and cool the sample to be measured;The extraction unit is used to unscrew the stopper, add second reagent to the sample to be measured to obtain mixed solution, and the stopper is set in the tube mouth of test tube, and the extraction unit is also used to oscillate the mixed solution, extract upper separated liquid, and heat and dry the separated liquid to obtain the extraction liquid;The mechanical hand is used for clamping the container, and the mechanical hand is also used to cooperate the alkaline hydrolysis unit and the extraction unit action.

[0005] According to the utility model provides a kind of dairy product fat detection workstation, the alkaline hydrolysis unit includes setting on the test table and be set on the test table, and the first stopper machine is unscrewed;The uniform mechanism is used to shake the sample in the centrifugal tube;The extraction mechanism is used to extract the sample to be measured from the centrifugal tube into the test tube under the clamping of the mechanical hand, and the first liquid adding mechanism is used to add the first reagent to the sample to be measured;The first stopper machine is used for unscrewing the stopper on the centrifugal tube, and the first stopper machine is also used to set unused stopper in the tube mouth of test tube after being equipped with sample to be measured in the test tube.

[0006] The utility model provides a kind of dairy fat detection work station, the first screw plug machine includes: multiple drivers, first clamp jaw and second clamp jaw;Multiple the driver is set to the test table, one of multiple the driver is used to drive the first clamp jaw opening and closing, the first clamp jaw is used to clamp the test tube, the remaining driver in multiple the driver is used to drive the second clamp jaw lifting, opening and closing and rotation, the second clamp jaw is used to clamp the bottle plug.

[0007] The utility model provides a kind of dairy fat detection work station, the alkali hydrolysis unit further includes heating oscillation mechanism and cooling tank being set on the test table;The heating oscillation mechanism is adjacent with the cooling tank, and the heating oscillation mechanism is used to heat, oscillate to the sample to be measured, and the cooling tank is used to cool the sample to be measured after heating oscillation.

[0008] The utility model provides a kind of dairy fat detection work station, the extraction unit includes second liquid adding mechanism and second screw plug machine being set on the test table;The second screw plug machine is used to unscrew the bottle plug on the test tube, and the second liquid adding mechanism is used to add the second reagent into the test tube, and the second screw plug machine is also used to set the bottle plug on the pipe orifice of the test tube after adding the second reagent into the test tube.

[0009] The utility model provides a kind of dairy fat detection work station, the extraction unit further includes vibration and shaking mechanism and extraction mechanism being set on the test table;The vibration and shaking mechanism is used to oscillate the mixed solution after adding the second reagent, so that the mixed solution is layered, and the extraction mechanism is used to extract the separated liquid in upper layer after layering into the erlenmeyer flask.

[0010] The utility model provides a kind of dairy fat detection work station, the extraction unit further includes drying mechanism and wet washing mechanism being set on the test table;The drying mechanism is used to heat the separated liquid to obtain the extraction liquid, and the wet washing mechanism is used to clean the bottle plug.

[0011] The utility model provides a kind of dairy fat detection work station, the extraction unit further includes moving mechanism, first drying oven and second drying oven being set on the test table;The moving mechanism is used to move the erlenmeyer flask to the first drying oven and carries out hot air drying, and the second drying oven is used to cool and dry the erlenmeyer flask.

[0012] The utility model provides a kind of dairy fat detection work station, further include setting on the test table scanning code mechanism, and the scanning code mechanism is used to carry out scanning code identification to the identification code on the centrifugal tube, to obtain sample information.

[0013] The milk product fat detection workstation provided by the utility model also comprises a waste liquid treatment mechanism arranged on the test table, and the waste liquid treatment mechanism is used for treating the residual sample and residual liquid after extraction and separation.

[0014] The milk product fat detection workstation provided by the utility model can automatically hydrolyze the milk product, separate and extract the fat by arranging the mechanical hand, alkali hydrolysis unit and extraction unit, can automatically weigh the weight by arranging the balance, and then obtains the content of the fat in the milk product according to the weight difference, and the whole process does not need manual operation, thereby improving the detection efficiency of the fat content and reducing the labor intensity of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0016] Figure 1 It is the structural schematic diagram of the milk product fat detection workstation provided by the utility model.

[0017] Reference signs:

[0018] 11, first accommodating station;12, second accommodating station;13, third accommodating station;14, fourth accommodating station;15, fifth accommodating station;16, sixth accommodating station;20, code scanning mechanism;31, extraction mechanism;32, first liquid adding mechanism;33, first plug screwing machine;34, shaking mechanism;35, heating and oscillation mechanism;36, cooling tank;41, first drying box;42, second liquid adding mechanism;43, second plug screwing machine;44, shaking mechanism;45, extraction mechanism;46, drying mechanism;47, rinsing mechanism;48, moving mechanism;49, second drying box;50, waste liquid treatment mechanism;61, first mechanical hand;62, second mechanical hand;63, third mechanical hand;70, balance;100, test table. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will combine the drawings in the utility model, and the technical scheme in the utility model is described clearly and completely, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] The following is combined Figure 1 This invention describes a dairy product fat detection workstation.

[0021] like Figure 1 As shown in the embodiment of this utility model, the dairy product fat detection workstation includes: a test bench 100 and multiple accommodating stations, a robotic arm, a balance 70, an alkaline hydrolysis unit, and an extraction unit disposed on the test bench 100.

[0022] The multiple containment stations include: a first containment station 11, a second containment station 12, a third containment station 13, a fourth containment station 14, a fifth containment station 15, and a sixth containment station 16. The first containment station 11 is used to contain centrifuge tubes, which are used to contain samples; the second containment station 12 is used to contain graduated test tubes, which are used to contain samples to be tested, which are portions of the sample extracted from the original sample; the third containment station 13 is used to contain Erlenmeyer flasks containing separation liquid; the fourth containment station 14 is used to contain empty Erlenmeyer flasks; the fifth containment station 15 is used to contain bottle stoppers; and the sixth containment station 16 is used to contain collection bottles.

[0023] The robotic arm places the test tube on the balance 70 for weighing to obtain the weight of the empty test tube. The alkaline hydrolysis unit is used to extract a certain amount of sample from the centrifuge tube into the test tube; the sample in the test tube is the test sample. The test tube containing the test sample is weighed on the balance 70 to obtain the total weight of the test tube and the test sample. The difference between the total weight of the test tube and the test sample and the empty test tube is the weight of the test sample.

[0024] A first reagent, in this embodiment, is ammonia. The alkaline hydrolysis unit is also used to screw the stopper onto the test tube opening, shake the test sample in the test tube to mix the ammonia with the test sample evenly, and heat and cool the test sample. The extraction unit is used to unscrew the stopper on the test tube opening, add a second reagent to the test sample to obtain a mixture, screw the stopper onto the test tube opening, and then shake the mixture. After standing, the shaken mixture will separate into layers. The extraction unit is also used to extract the upper separated liquid into an Erlenmeyer flask. Before extracting the separated liquid, the Erlenmeyer flask is weighed. The separated liquid is heated and dried. In this embodiment, part of the reagent is a volatile substance. During the heating and drying process, the volatile substance evaporates to obtain the extract, which is fat.

[0025] In this embodiment, before extracting the separation liquid, the empty Erlenmeyer flask is weighed. After the separation liquid is extracted from the Erlenmeyer flask and heated and dried, the Erlenmeyer flask is weighed again. The difference between the two is the weight of the fat. The percentage of the weight of the fat to the weight of the sample to be tested is the percentage of fat content.

[0026] Optionally, the balance 70 can be a conventional electronic scale. The balance 70 can also be an electronic balance, placed on a separate platform mounted on the test bench 100 to prevent inaccurate weighing due to vibration. The electronic balance has a receiving cavity with a receiving rack inside to hold test tubes or Erlenmeyer flasks. A door is located at the top of the receiving cavity, and a sensor block is installed on the door. When the sensor block detects a robotic arm on the door, the door automatically opens, the robotic arm places the test tube or Erlenmeyer flask onto the receiving rack, and the door automatically closes when the robotic arm moves away from the door. The electronic balance automatically weighs the sample and displays the result. After weighing, when the robotic arm is on the door again, the door automatically opens, the robotic arm removes the test tube or Erlenmeyer flask, the door automatically closes, and the electronic balance automatically zeroes.

[0027] In this embodiment, the sample is a dairy product, such as raw milk.

[0028] The dairy product fat detection workstation provided in this embodiment of the utility model can automatically hydrolyze dairy products, separate and extract fat by setting up a robotic arm, an alkaline hydrolysis unit and an extraction unit; by setting up a balance, it can automatically weigh the product and then obtain the fat content in the dairy product based on the weight difference; the whole process does not require manual operation, which not only improves the detection efficiency of fat content, but also reduces the labor intensity of operators.

[0029] like Figure 1 As shown, in an embodiment of this utility model, the alkaline hydrolysis unit includes an extraction mechanism 31, a first liquid addition mechanism 32, a first stopper 33, and a shaking mechanism 34, all mounted on the test bench 100. In an embodiment of this utility model, the robotic arm includes a first robotic arm 61 and a second robotic arm 62, which cooperate in operation.

[0030] Specifically, the conveyor line transports centrifuge tubes containing samples to the vicinity of the first receiving station 11. The first robotic arm 61 picks up the centrifuge tube and moves it to the shaking mechanism 34. At this point, the centrifuge tube opening is fitted with a stopper. After the shaking mechanism 34 shakes the sample, the first robotic arm 61 holds the centrifuge tube to the first stopper 33, which unscrews the stopper. The first robotic arm 61 places the centrifuge tube at the first receiving station 11 and the stopper at the fifth receiving station 15. The second robotic arm 62 picks up a test tube from the second receiving station 12. At this point, the test tube opening is also fitted with a stopper. The second robotic arm 62 holds the test tube to the first stopper 33, which unscrews the stopper. The stopper is then held by the second robotic arm 62 and temporarily stored at the fifth receiving station 15. The second robotic arm 62 places the test tube on a balance 70 for weighing to obtain the weight of the empty test tube. The test tube is then clamped to the vicinity of the first receiving station 11. The first robotic arm 61 clamps the extraction mechanism 31 to the first receiving station 11 and extracts a certain amount of the sample to be tested from the centrifuge tube into the test tube. The second robotic arm 62 places the test tube back on the balance 70 for weighing to obtain the total weight of the test tube and the sample to be tested. The second robotic arm 62 clamps the test tube to the first liquid addition mechanism 32, which adds a certain amount of ammonia water to the test tube. The first robotic arm 61 clamps the stopper to the first stoppering machine 33, which screws the stopper onto the mouth of the test tube.

[0031] Optionally, the extraction mechanism 31 can be a pipette. The first liquid addition mechanism 32 includes a storage tank containing ammonia. The storage tank has a liquid outlet, and a sensor is located next to the outlet. When the test tube is located at the outlet, the sensor detects the test tube, and the outlet automatically dispenses liquid. Furthermore, to quantitatively add ammonia to the test tube, the storage tank is also equipped with a weight sensor. When the added ammonia reaches a preset value, the outlet automatically stops dispensing liquid. The shaking mechanism 34 can be a shaker or a shaker.

[0032] Further, in an embodiment of this utility model, the first stopper 33 includes: four drivers, a first gripper, and a second gripper. The four drivers are disposed on the test bench 100. The first driver drives the first gripper to open and close to clamp the test tube. The second driver drives the second gripper to open and close to clamp the stopper. The third driver drives the second gripper to rise and fall to insert the stopper into the mouth of the test tube. The fourth driver drives the second gripper to rotate to seal the stopper tightly to the test tube. Accordingly, when unscrewing the stopper, the first gripper clamps the test tube, the second gripper clamps the stopper, and the fourth driver drives the second gripper to rotate in the opposite direction while the third driver drives the second gripper to rise to unscrew the stopper.

[0033] Optionally, the first, second, and third drivers can be cylinders, electric cylinders, or linear motors; the fourth driver can be a rotary motor.

[0034] like Figure 1 As shown in the embodiment of this utility model, the alkaline hydrolysis unit further includes a heating and oscillation mechanism 35 and a cooling tank 36 disposed on the test bench 100. The heating and oscillation mechanism 35 is disposed adjacent to the cooling tank 36. The second robotic arm 62 clamps the test tube with the stopper in the heating and oscillation mechanism 35, which heats and oscillates the sample to be tested in the test tube to mix the ammonia water and the sample to be tested evenly. After oscillation, the test tube is clamped by the second robotic arm 62 and cooled in the cooling tank 36. Optionally, the heating and oscillation mechanism 35 can be a water bath shaker.

[0035] like Figure 1 As shown, in an embodiment of this utility model, the extraction unit includes a second liquid addition mechanism 42 and a second stopper 43 disposed on the test bench 100. A second robotic arm 62 clamps the test tube from the cooling tank 36 to the second stopper 43, where the stopper 43 unscrews the stopper from the test tube opening. A first robotic arm 61 places the stopper in the fifth receiving station 15. The second robotic arm 62 clamps the test tube to the second liquid addition mechanism 42, where ethanol and Congo red are added to the test tube. The second robotic arm 62 oscillates the test tube to ensure the mixture is homogeneous. Then, the second liquid addition mechanism 42 adds anhydrous diethyl ether to the test tube. The second robotic arm 62 clamps the test tube to the second stopper 43, and the first robotic arm 61 clamps the stopper to the second stopper 43, where the stopper 43 screws the stopper onto the test tube opening.

[0036] In this embodiment, the second liquid addition mechanism 42 includes a liquid storage tank with a partition to divide the space inside the tank into multiple chambers. Each chamber is used to hold a reagent, such as ethanol, Congo red, anhydrous diethyl ether, and petroleum ether. Each chamber has a corresponding outlet and a liquid level sensor. When the liquid level of each liquid drops by a preset value, the outlet stops dispensing, thereby achieving quantitative addition of the reagent.

[0037] The structure of the second plugging machine 43 is the same as that of the first plugging machine 33, and will not be described again here.

[0038] like Figure 1 As shown, in an embodiment of this invention, the extraction unit further includes a shaking mechanism 44 and an extraction mechanism 45 disposed on the test bench 100. A second robotic arm 62 clamps a test tube with a stopper screwed into it to the shaking mechanism 44, which vibrates the mixture inside the test tube. The second robotic arm 62 then clamps the vibrated test tube to the extraction mechanism 45 and allows it to stand, causing the mixture to separate into layers. The extraction mechanism 45 extracts the separated liquid located on the upper layer after separation. Optionally, the shaking mechanism 44 can be a centrifuge to cause the mixture to separate into layers.

[0039] Furthermore, the extraction unit also includes a second drying chamber 49, inside which the Erlenmeyer flask is placed to prevent contamination. The multiple robotic arms also include a third robotic arm 63, which clamps the Erlenmeyer flask from the second drying chamber 49 to a fourth receiving station 14 for temporary storage. A second robotic arm 62 clamps the Erlenmeyer flask from the fourth receiving station 14 to a third receiving station 13 for temporary storage. A first robotic arm 61 clamps the Erlenmeyer flask from the third receiving station 13 to a balance 70 for weighing, obtaining the weight of the Erlenmeyer flask. Then, the Erlenmeyer flask is clamped to the extraction mechanism 45, where the separated liquid from the test tube is extracted into the Erlenmeyer flask.

[0040] In this embodiment, the extraction mechanism 45 includes a lifting module, a pump, a suction tube, and an image acquisition device. The lifting module is mounted on the test bench 100, and the suction tube is mounted on the lifting module. The lifting module moves the suction tube up and down during lifting, with both ends of the suction tube extending into the test tube and the Erlenmeyer flask. The pump is mounted on the suction tube to draw the separated liquid into the Erlenmeyer flask. The image acquisition device is used to acquire images of the separated liquid in real time. The lifting module moves the suction tube downwards to draw the separated liquid into the Erlenmeyer flask. When the separated liquid is completely drawn out, and the image acquired by the image acquisition device shows no separated liquid, the image acquisition device sends a signal to the lifting module, and the lifting module stops operating. In the prior art, the separated liquid is usually manually poured out. When the test tube is shaken, the upper layer of separated liquid easily mixes with the lower layer of solution, resulting in incomplete extraction. However, using the extraction mechanism 45 provided in this embodiment, the separated liquid can be extracted without shaking, ensuring thorough extraction and improving the accuracy of fat content detection.

[0041] Furthermore, in this embodiment, after the first extraction, a second and third extraction are required. The specific processes for the second and third extractions are the same as those for the first extraction, and therefore will not be described again. The only difference is the second reagent added. During the second extraction, ethanol, anhydrous diethyl ether, and petroleum ether are added to the test tube; during the third extraction, anhydrous diethyl ether and petroleum ether are added to the test tube.

[0042] Furthermore, the extraction unit also includes a drying mechanism 46 mounted on the test bench 100. The Erlenmeyer flask containing the three extracts is clamped in the drying mechanism 46 and heated. During heating, anhydrous diethyl ether and petroleum ether evaporate, leaving only fat in the Erlenmeyer flask. After drying in the drying mechanism 46 for a certain period, the Erlenmeyer flask is placed in the third container station 13 for cooling. After cooling, the Erlenmeyer flask is weighed to obtain the total weight of the fat and the flask. Then, the Erlenmeyer flask is placed in the drying mechanism 46 again for a certain period, cooled, and weighed again. This process is repeated until the difference between two weighings does not exceed 2 mg, ensuring complete evaporation of anhydrous diethyl ether and petroleum ether. The weight of the fat is obtained by subtracting the weight of the Erlenmeyer flask from the final total weight of the flask and fat.

[0043] like Figure 1 As shown, the extraction unit also includes a rinsing mechanism 47 disposed on the test bench 100, which is used to clean the bottle stopper.

[0044] Optionally, in one embodiment of the present invention, the extraction unit further includes an automatic fume hood. The second liquid addition mechanism 42, the second stopper 43, the extraction mechanism 45, and the rinsing mechanism 47 are all located inside the automatic fume hood. The automatic fume hood has good ventilation effect, which can ensure the effective volatilization of anhydrous ether and petroleum ether, and can prevent the second reagent from volatilizing into the air during the second reagent addition process, thus ensuring the safe operation of the workstation.

[0045] like Figure 1 As shown, the extraction unit also includes a moving mechanism 48, a first drying chamber 41, and a second drying chamber 49, all mounted on the test bench 100. The first drying chamber 41 is used to dry the Erlenmeyer flasks to maintain a constant weight. The moving mechanism 48 is used to transfer the Erlenmeyer flasks into the first drying chamber 41 for drying. The first drying chamber 41 uses hot air to dry the Erlenmeyer flasks. The second drying chamber 49 is for cooling and drying, using cold air to cool and dry the Erlenmeyer flasks. During extraction of the separated liquid, the Erlenmeyer flasks can be held within the second drying chamber 49.

[0046] Furthermore, the first drying oven 41 includes a box body, a hot air blower inside the box body, a door body, and a sensor block on the door body. When the moving mechanism 48 approaches the door body, the sensor block senses the moving mechanism 48, and the door body automatically opens, allowing the moving mechanism 48 to place the triangular flask inside the box body. When the moving mechanism 48 moves away from the door body, the sensor block no longer senses the moving mechanism 48, and the door body automatically closes, the hot air blower blows air, and the drying of the triangular flask begins. When the hot air blower has been running for a set time, the hot air blower automatically stops working to achieve timed drying.

[0047] Correspondingly, the structure of the second drying chamber 49 can be the same as that of the first drying chamber 41, except that the hot air blower is a regular fan to achieve cooling and drying.

[0048] The moving mechanism 48 includes a linear module and a tray. The linear module is mounted on the test bench 100, and the tray is mounted on the linear module. The triangular bottles are placed on the tray. When the linear module moves, it can move the tray to place it into the first drying chamber 41. When the triangular bottles are transferred from the first drying chamber 41 to the second drying chamber 49, they can be held by the third robotic arm 63.

[0049] In an embodiment of this utility model, the dairy product fat testing workstation also includes a waste liquid treatment mechanism 50 disposed on the test bench 100. The collection bottle is used to collect the remaining sample in the centrifuge tube, the remaining liquid in the test tube, and the waste liquid when the rinsing mechanism 47 cleans the bottle stopper. The collected waste liquid is poured into the waste liquid treatment mechanism 50 and discharged by the waste liquid treatment mechanism 50.

[0050] The waste liquid treatment unit 50 includes a storage tank, pipelines, a pump, and an outlet pipe. The storage tank is connected to the pipelines, the pump is located within the pipelines, and the outlet pipe is located next to the storage tank. Waste liquid is poured into the storage tank from a collection bottle, and then discharged through the pipelines by the pump. After the waste liquid is discharged, water flows out from the outlet pipe to clean the storage tank and pipelines.

[0051] In an embodiment of this utility model, the dairy fat testing workstation further includes a barcode scanning mechanism 20, which is disposed on the test bench 100. The barcode scanning mechanism 20 is used to scan centrifuge tubes containing samples to obtain sample information; the barcode scanning mechanism is also used to scan test tubes and Erlenmeyer flasks to be used to store information.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dairy product fat detection workstation, characterized in that, include: The test bench, along with a robotic arm, multiple accommodating stations, a balance, an alkaline hydrolysis unit, and an extraction unit, all mounted on the test bench; The multiple accommodating stations are respectively used to accommodate various containers and bottle stoppers, including centrifuge tubes, test tubes, and Erlenmeyer flasks; The balance is used to weigh the container and the extract. The alkaline hydrolysis unit is used to extract the sample to be tested from the centrifuge tube into the test tube, add the first reagent to the sample to be tested, and place the stopper at the mouth of the test tube. The alkaline hydrolysis unit is also used to shake, heat and cool the sample to be tested. The extraction unit is used to unscrew the bottle stopper, add a second reagent to the sample to be tested to obtain a mixture, and place the bottle stopper at the mouth of the test tube. The extraction unit is also used to shake the mixture, extract the upper separation liquid, and heat and dry the separation liquid to obtain the extract. The robotic arm is used to hold the container, and it is also used to cooperate with the alkaline hydrolysis unit and the extraction unit.

2. The dairy product fat detection workstation according to claim 1, characterized in that, The alkaline hydrolysis unit includes a shaking mechanism, an extraction mechanism, a first liquid addition mechanism, and a first stopper, all mounted on the test bench. The shaking mechanism is used to shake the sample in the centrifuge tube evenly. The extraction mechanism is used to extract the sample to be tested from the centrifuge tube into the test tube under the grip of the robotic arm, and the first liquid addition mechanism is used to add the first reagent to the sample to be tested. The first stopper is used to unscrew the stopper on the centrifuge tube. The first stopper is also used to place an unused stopper at the mouth of the test tube after the test tube contains the sample to be tested.

3. The dairy product fat detection workstation according to claim 2, characterized in that, The first plug screwing machine includes: multiple drivers, a first gripper, and a second gripper; A plurality of the actuators are disposed on the test bench. One of the plurality of actuators is used to drive the first gripper to open and close. The first gripper is used to hold the test tube. The remaining actuators are used to drive the second gripper to lift, open, close, and rotate. The second gripper is used to hold the stopper.

4. The dairy product fat detection workstation according to claim 2, characterized in that, The alkaline hydrolysis unit also includes a heating and oscillation mechanism and a cooling tank disposed on the test bench; The heating and oscillation mechanism is disposed adjacent to the cooling tank. The heating and oscillation mechanism is used to heat and oscillate the sample to be tested, and the cooling tank is used to cool the sample to be tested after heating and oscillation.

5. The dairy fat detection workstation according to claim 1, characterized in that, The extraction unit includes a second liquid addition mechanism and a second stopper machine disposed on the test bench; The second stopper is used to unscrew the stopper on the test tube, the second liquid adding mechanism is used to add the second reagent into the test tube, and the second stopper is also used to place the stopper at the mouth of the test tube after the second reagent has been added into the test tube.

6. The dairy product fat detection workstation according to claim 5, characterized in that, The extraction unit also includes a shaking mechanism and an extraction mechanism disposed on the test bench; The shaking mechanism is used to shake the mixture after the second reagent is added so that the mixture is separated into layers, and the extraction mechanism is used to extract the separated liquid in the upper layer into the Erlenmeyer flask.

7. The dairy product fat detection workstation according to claim 6, characterized in that, The extraction unit also includes a drying mechanism and a rinsing mechanism disposed on the test bench; The drying mechanism is used to heat the separation liquid to obtain the extract, and the rinsing mechanism is used to clean the bottle stopper.

8. The dairy product fat detection workstation according to claim 1, characterized in that, The extraction unit also includes a moving mechanism, a first drying chamber, and a second drying chamber disposed on the test bench; The moving mechanism is used to transfer the triangular flask to the first drying chamber for hot air drying, and the second drying chamber is used to cool and dry the triangular flask.

9. The dairy fat detection workstation according to claim 1, characterized in that, It also includes a barcode scanning mechanism installed on the test bench, which is used to scan and identify the identification code on the centrifuge tube to obtain sample information.

10. The dairy product fat detection workstation according to claim 1, characterized in that, It also includes a waste liquid treatment mechanism installed on the test bench, which is used to treat the remaining sample and the remaining liquid after extraction and separation.

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