Dairy product detection work station

Abstract

The utility model provides a dairy product detection work station which comprises a temporary storage mechanism used for storing a container containing a sample to be detected; the pretreatment mechanism is used for carrying out oscillation and uncovering treatment on the container; the nitrite detection mechanism is used for performing nitrite detection on the to-be-detected sample in the container; the density detection mechanism is used for detecting the density of the to-be-detected sample in the container; the freezing point detection mechanism is used for carrying out freezing point detection on the to-be-detected sample in the container; the acidity detection mechanism is used for detecting the acidity of the to-be-detected sample in the container; and a transfer mechanism. According to the dairy product detection work station, multiple functions of caching, pretreatment, nitrite detection, density detection, freezing point detection, acidity detection and the like are integrated, and the efficient transfer mechanism is arranged, so that continuous and rapid detection of dairy products can be realized, and key indexes such as nitrite content, density, freezing point and acidity in the dairy products can be accurately measured; and automation and intellectualization of the detection process are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection technical field especially relates to a dairy product detection work station. BACKGROUND

[0002] In the production, processing, storage and transportation process of dairy products, they may be affected by various factors, leading to changes in product quality. In order to effectively monitor the quality of dairy products, it is necessary to detect multiple indicators.

[0003] However, in the existing dairy product detection process, it is usually necessary to manually transfer the containers containing the samples to be tested one by one to different detection equipment for detection. This way not only consumes time and effort, but also easily causes contamination or loss of samples during the transfer process, thereby affecting the accuracy of the detection results. In addition, since the operation methods and detection principles of different detection equipment are different, the operators need to receive professional training to master them skillfully, which undoubtedly increases the detection cost and time.

[0004] In view of the above problems, there is an urgent need in the market for an efficient, accurate and multifunctional dairy product detection work station. Such a detection work station needs to be able to automatically complete multiple detections of dairy products, including nitrite content, density, freezing point, acidity and other key indicators, to ensure the quality and safety of dairy products. SUMMARY

[0005] The utility model provides a kind of dairy product detection work station, to satisfy multiple detection of dairy product, including nitrite content, density, freezing point, acidity and other key indicators, to ensure the quality and safety of dairy products.

[0006] The utility model provides a kind of dairy product detection work station, comprising:

[0007] Buffer mechanism is used to store the container containing the sample to be tested;

[0008] Pretreatment mechanism is used to shake and open the cover of the container;

[0009] Nitrite detection mechanism is used to detect the nitrite in the sample to be tested in the container;

[0010] Density detection mechanism is used to detect the density of the sample to be tested in the container;

[0011] Freezing point detection mechanism is used to detect the freezing point of the sample to be tested in the container;

[0012] Acidity detection mechanism is used to detect the acidity of the sample to be tested in the container;

[0013] A transport mechanism is arranged to transport the container in the buffer mechanism to the pre-treatment mechanism, and transport the container to the nitrite detection mechanism for detection if nitrite detection is required, transport the container to the density detection mechanism for detection if density detection is required, transport the container to the freezing point detection mechanism for detection if freezing point detection is required, and transport the container to the acidity detection mechanism for detection if acidity detection is required.

[0014] According to the dairy product detection work station provided by the utility model, the pre-treatment mechanism comprises a constant-temperature water tank, a shaker and a cap screwing machine.

[0015] The transport mechanism is arranged to transport the container to the constant-temperature water tank before oscillation treatment, and the constant-temperature water tank is arranged to heat the container to a specified temperature.

[0016] The transport mechanism is arranged to grasp the container containing the sample to be detected and transport the container to the shaker, and the shaker is arranged to perform oscillation treatment on the container.

[0017] The transport mechanism is further arranged to transport the container after oscillation treatment to the cap screwing machine, and the cap screwing machine is arranged to perform cap opening treatment on the container for at least one of subsequent nitrite detection, density detection, freezing point detection and acidity detection.

[0018] According to the dairy product detection work station provided by the utility model, the pre-treatment mechanism further comprises a nitrite detection buffer rack, a density detection buffer rack, a freezing point detection buffer rack, an acidity detection buffer rack and a discharging buffer rack.

[0019] The nitrite detection buffer rack is arranged on the nitrite detection mechanism, the density detection buffer rack is arranged on the density detection mechanism, the freezing point detection buffer rack is arranged on one side of the freezing point detection mechanism, and the acidity detection buffer rack is arranged on one side of the acidity detection mechanism.

[0020] The transport mechanism is arranged to transport the container to the nitrite detection buffer rack, the density detection buffer rack, the freezing point detection buffer rack and the acidity detection buffer rack, and transport the container to the discharging buffer rack after corresponding detection is completed.

[0021] According to the dairy product detection work station provided by the utility model, the buffer mechanism comprises a nitrite detection reagent tube rack and a feeding buffer rack.

[0022] The nitrite detection reagent tube rack is arranged to store detection reagents, and the feeding buffer rack is arranged to store the container, which comprises a test tube and a tank body.

[0023] The milk product detection work station provided by the utility model, the transfer mechanism comprises:

[0024] The first transfer robot is used for transferring the container in the buffer mechanism to the pretreatment mechanism, and in the case of nitrite detection, the container is transferred to the nitrite detection buffer, in the case of density detection, the container is transferred to the density detection buffer frame for detection, in the case of freezing point detection, the container is transferred to the freezing point detection buffer frame for detection, and in the case of acidity detection, the container is transferred to the acidity detection buffer frame for detection.

[0025] The second transfer robot is used for transferring the container after detection to the discharging buffer frame.

[0026] The milk product detection work station provided by the utility model further comprises:

[0027] The code scanner is arranged on one side of the buffer mechanism, and the code scanner is used for scanning the container grabbed by the transfer mechanism.

[0028] The milk product detection work station provided by the utility model, the nitrite detection mechanism comprises:

[0029] The sampling unit, the mixing unit and the visual detection unit;

[0030] The sampling unit is used for sampling the to-be-detected sample and the detection reagent respectively, and the sampled to-be-detected sample and detection reagent are sequentially added into the test tube on the mixing unit;

[0031] The mixing unit is used for uniformly shaking the test tube; and the transfer mechanism is used for transferring the uniformly shaken test tube to the visual detection unit.

[0032] The visual detection unit is used for visually detecting the liquid in the test tube to determine whether the nitrite content in the to-be-detected sample is qualified.

[0033] The milk product detection work station provided by the utility model, the density detection mechanism comprises:

[0034] The sample suction unit is used for sucking the to-be-detected sample in the tank;

[0035] The sample buffer unit comprises a rotating disc and a detection cylinder arranged on the rotating disc, and the rotating disc is suitable for driving the detection cylinder to move between a detection station and a liquid injection station.

[0036] A sample injection unit in communication with the sample suction unit, the sample injection unit configured to inject the sample to be tested sucked by the sample suction unit into the detection cylinder at the injection station;

[0037] A density detection unit configured to perform density detection on the sample to be tested in the detection cylinder at the detection station.

[0038] According to the dairy product detection station provided by the utility model, the freezing point detection mechanism comprises:

[0039] A freezing point detection pipetting unit for receiving the container transferred by the transfer mechanism;

[0040] A freezing point detector for performing freezing point detection on the sample in the container.

[0041] According to the dairy product detection station provided by the utility model, the acidity detection mechanism comprises:

[0042] An acidity titrator for receiving the container transferred by the transfer mechanism and detecting the acidity of the sample to be tested in the container by titration;

[0043] An acidity detection pipetting unit for moving out the container after the acidity detection in the acidity titrator is completed.

[0044] The dairy product detection station provided by the utility model integrates multiple functions such as caching, pretreatment, nitrite detection, density detection, freezing point detection and acidity detection, and is equipped with an efficient transfer mechanism, so that the station can realize continuous and rapid detection of dairy products and significantly improve the detection efficiency. Each detection mechanism adopts corresponding detection technology, which can accurately measure the nitrite content, density, freezing point and acidity of the dairy product and other key indicators, realizes the automation and intelligentization of the detection process, and the operator only needs to perform simple operation and maintenance to complete the comprehensive detection of the dairy product. Meanwhile, the pretreatment mechanism is used for oscillation and cap opening treatment of the container, so as to ensure the uniformity of the sample to be tested and the accuracy of the detection result. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0046] Figure 1 It is the top view of the dairy product detection station provided by the utility model embodiment.

[0047] Figure 2 is a three-dimensional structure schematic view of the dairy product detection work station provided by the embodiment of the utility model.

[0048] Figure 3 is a three-dimensional structure schematic view of the dairy product detection work station provided by the embodiment of the utility model.

[0049] Figure 4 is a structure schematic view of the transfer mechanism provided by the embodiment of the utility model.

[0050] Figure 5 is a structure schematic view of the constant temperature sink provided by the embodiment of the utility model.

[0051] Figure 6 is a structure schematic view of the nitrite detection mechanism provided by the embodiment of the utility model.

[0052] Figure 7 is a structure schematic view of the density detection mechanism provided by the embodiment of the utility model.

[0053] Reference signs:

[0054] 1, buffer mechanism;11, nitrite detection reagent pipe rack;12, feeding buffer rack;

[0055] 2, pretreatment mechanism;21, constant temperature sink;211, sink body;22, oscillator;23, cap screwing machine;

[0056] 24, nitrite detection buffer rack;25, density detection buffer rack;26, freezing point detection buffer rack;27, acidity detection buffer rack;28, discharging buffer rack;

[0057] 3, transfer mechanism;31, first transfer robot;311, first mechanical arm;312, first clamping jaw;32, second transfer robot;321, second mechanical arm;322, second clamping jaw;323, pipette;

[0058] 4, density detection mechanism;41, sample suction unit;42, sample buffer unit;43, sample injection unit;44, density detection unit;

[0059] 5, freezing point detection mechanism;51, freezing point detection pipetting unit;52, freezing point instrument;

[0060] 6, acidity detection mechanism;61, acidity titrator;62, acidity detection pipetting unit;

[0061] 7, nitrite detection mechanism;71, sampling unit;72, mixing unit;73, visual detection unit;

[0062] 8, code scanner;9, waste liquid treatment mechanism; DETAILED DESCRIPTION

[0063] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described clearly and completely in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0064] The milk product detection work station provided by the embodiments of the utility model will be described in detail in combination with specific embodiments and application scenarios. Figures 1-5

[0065] The milk product detection work station provided by the embodiments of the utility model will be described in detail in combination with specific embodiments and application scenarios. Figures 1 to 3 As shown in the figure, the milk product detection work station comprises: a buffer mechanism 1, a pretreatment mechanism 2, a nitrite detection mechanism 7, a density detection mechanism 4. The buffer mechanism 1 is used for storing a container containing a to-be-tested sample; the pretreatment mechanism 2 is used for performing oscillation and cap opening treatment on the container; the nitrite detection mechanism 7 is used for performing nitrite detection on the to-be-tested sample in the container; the density detection mechanism 4 is used for performing density detection on the to-be-tested sample in the container; the freezing point detection mechanism 5 is used for performing freezing point detection on the to-be-tested sample in the container; the acidity detection mechanism 6 is used for performing acidity detection on the to-be-tested sample in the container; and the transfer mechanism 3 is used for transferring the container in the buffer mechanism 1 to the pretreatment mechanism 2, and transferring the container to the nitrite detection mechanism 7 for detection in the case of needing nitrite detection, transferring the container to the density detection mechanism 4 for detection in the case of needing density detection, transferring the container to the freezing point detection mechanism 5 for detection in the case of needing freezing point detection, and transferring the container to the acidity detection mechanism 6 for detection in the case of needing acidity detection.

[0066] The milk product detection work station provided by the embodiments of the utility model randomly extracts milk product samples from a production line, a warehouse or a transportation process during a detection process. The extracted samples are loaded into special containers and sealed for preservation to prevent pollution and deterioration. The container containing the sample is placed in the buffer mechanism 1 and waits for further processing.

[0067] The transfer mechanism 3 transfers the container in the buffer mechanism 1 to the pretreatment mechanism 2. The pretreatment mechanism 2 performs oscillation treatment on the container to fully mix and evenly distribute the sample, thereby ensuring the accuracy of subsequent detection. Then, the pretreatment mechanism 2 performs cap opening treatment to prepare for subsequent sample detection.

[0068] ​If nitrite detection is required, the transport mechanism 3 transports the pretreated container to the nitrite detection mechanism 7. The nitrite detection mechanism 7 detects the content of nitrite in the sample.

[0069] If density detection is required, the transport mechanism 3 transports the container to the density detection mechanism 4. The density detection mechanism 4 calculates the density of the sample by measuring the volume and mass of the sample using a densimeter or related instrument.

[0070] If freezing point detection is required, the transport mechanism 3 transports the container to the freezing point detection mechanism 5. The freezing point detection mechanism 5 accurately measures the temperature point at which the sample begins to freeze.

[0071] If acidity detection is required, the transport mechanism 3 transports the container to the acidity detection mechanism 6. The acidity detection mechanism 6 quickly and accurately measures the acidity value of the sample using a pH meter or acidity sensor.

[0072] After each detection step is completed, the detection results are recorded in detail and saved to the corresponding data system. According to the detection results, a detection report is output.

[0073] The dairy product detection work station provided by the utility model integrates multiple functions such as buffering, pretreatment, nitrite detection, density detection, freezing point detection and acidity detection, and is equipped with an efficient transport mechanism 3, so that the work station can realize continuous and rapid detection of dairy products, significantly improving the detection efficiency. Each detection mechanism adopts corresponding detection technology, which can accurately measure the content of nitrite, density, freezing point and acidity and other key indicators in the dairy product, realizes the automation and intelligentization of the detection process, and the operator only needs to perform simple operation and maintenance to complete the comprehensive detection of the dairy product. At the same time, the container is subjected to oscillation and cap opening treatment by the pretreatment mechanism 2, so that the uniformity of the sample to be detected and the accuracy of the detection results are ensured.

[0074] In some embodiments, as shown in Figures 1 to 3 The pretreatment mechanism 2 includes a constant-temperature water tank 21, an oscillator 22 and a cap twisting machine 23; the transport mechanism 3 is used to transport the container to the constant-temperature water tank 21 before oscillation treatment, the constant-temperature water tank 21 is used to heat the container to a specified temperature; the transport mechanism 3 is used to grasp the container containing the sample to be detected and transport the container to the oscillator 22; the oscillator 22 is used to oscillate the container; the transport mechanism 3 is also used to transport the container after oscillation treatment to the cap twisting machine 23; the cap twisting machine 23 is used to open the cap of the container for at least one of subsequent nitrite detection, density detection, freezing point detection and acidity detection.

[0075] Specifically, the constant-temperature water tank 21 is used to heat or cool the container and the dairy product sample in it to a specified temperature to ensure consistency of subsequent detection conditions. The shaker 22 is used to shake the container to ensure that the dairy product sample is fully mixed and uniform in the container. The cap twisting machine 23 is used to open the cap of the container so that the subsequent detection mechanism can directly contact the sample.

[0076] During the detection process, the transport mechanism 3 first takes the container out of the buffer mechanism 1 and transports it to the constant-temperature water tank 21 (if necessary for constant-temperature processing). The constant-temperature water tank 21 heats or cools the container according to the preset temperature parameters until the specified temperature is reached. After the constant-temperature process is completed, the transport mechanism 3 takes the container out of the constant-temperature water tank 21 and prepares for the next step.

[0077] Then, the transport mechanism 3 transports the container processed by the constant-temperature water tank 21 to the shaker 22. The shaker 22 is started to shake the container, and the shaking time and frequency can be adjusted according to the sample characteristics and detection requirements. After the shaking is completed, the transport mechanism 3 takes the container out of the shaker 22 and prepares for the next step.

[0078] After the shaking process is completed, the transport mechanism 3 transports the container that has completed the shaking process to the cap twisting machine 23. The cap twisting machine 23 is started to open the cap of the container by mechanical or pneumatic means. After the cap is opened, the transport mechanism 3 takes the container out of the cap twisting machine 23 and prepares for at least one of the nitrite detection, density detection, freezing point detection, and acidity detection.

[0079] As shown in Figure 5 The constant-temperature water tank 21 includes a tank body 211, a heating component, and a cooling component.

[0080] The tank body 211 is usually made of corrosion-resistant and high-strength materials such as stainless steel or special alloys to ensure the stability and durability of the structure during long-term use. The tank body 211 is designed with reasonable space inside for placing the dairy product containers to be detected (such as centrifuge tubes, test tubes, etc.) and the corresponding detection reagents. At the same time, the tank body 211 is externally provided with a control panel, a power interface, and other accessories for easy operation and monitoring by the user.

[0081] The heating component is used to increase the temperature of the liquid in the tank body 211 to meet the needs of high-temperature detection projects. The heating component usually uses heating elements such as electric heating wires and electric heating tubes to generate heat through the action of electric current, which is then transferred to the liquid in the tank body 211. The working state of the heating component can be accurately controlled through the temperature setting button on the control panel, and the user can set the required temperature value according to the detection requirements.

[0082] The cooling component is used to reduce the temperature of the liquid in the tank 211 to meet the needs of low-temperature detection projects. The cooling component usually adopts refrigeration elements such as compressors, condensers, etc., and realizes the transfer and release of heat through the circulation flow of refrigerant, thereby achieving the purpose of cooling. The working state of the cooling component can also be accurately controlled through the temperature setting button on the control panel. Users can set the required temperature range according to the detection requirements.

[0083] In some embodiments, as shown in Figures 1 to 3 The pretreatment mechanism 2 further includes a nitrite detection buffer rack 24, a density detection buffer rack 25, a freezing point detection buffer rack 26, an acidity detection buffer rack 27, and a discharging buffer rack 28. The nitrite detection buffer rack 24 is arranged on the nitrite detection mechanism 7, the density detection buffer rack 25 is arranged on the density detection mechanism 4, the freezing point detection buffer rack 26 is arranged on one side of the freezing point detection mechanism 5, and the acidity detection buffer rack 27 is arranged on one side of the acidity detection mechanism 6. The transfer mechanism 3 is used to transfer the containers to the nitrite detection buffer rack 24, the density detection buffer rack 25, the freezing point detection buffer rack 26, and the acidity detection buffer rack 27, and then transfer the containers to the discharging buffer rack 28 after the corresponding detection is completed.

[0084] Specifically, the nitrite detection buffer rack 24 is arranged directly on or near the nitrite detection mechanism 7, and is used to temporarily store the containers waiting for nitrite detection. The density detection buffer rack 25 is arranged on or near the density detection mechanism 4, and is used to store the containers waiting for density detection. The freezing point detection buffer rack 26 is arranged on one side of the freezing point detection mechanism 5, which facilitates the transfer of the containers from the pretreatment mechanism 2 to the freezing point detection buffer rack 26 by the transfer mechanism 3 for preparation before freezing point detection. The acidity detection buffer rack 27 is arranged on one side of the acidity detection mechanism 6, and is also used to store the containers waiting for acidity detection. The discharging buffer rack 28 is arranged at the end of the detection process, and is used to store the containers that have completed all detection steps, waiting for further processing or discharging.

[0085] After the pretreatment is completed, the transfer mechanism 3 transfers the containers to the corresponding detection buffer rack (the nitrite detection buffer rack 24, the density detection buffer rack 25, the freezing point detection buffer rack 26, or the acidity detection buffer rack 27) according to the detection requirements. On the buffer rack, the containers wait to be sent into the corresponding detection mechanism for detection.

[0086] When the detection mechanism is ready, the transfer mechanism 3 takes the containers out of the buffer rack and sends them into the detection mechanism for detection. After the detection is completed, the detection mechanism feeds back the detection results to the system and notifies the transfer mechanism 3 to perform the next operation. After all detection steps are completed, the transfer mechanism 3 takes the containers out of the last detection mechanism and transfers them to the discharging buffer rack 28. On the discharging buffer rack 28, the containers wait to be further processed or discharged to a designated location.

[0087] In some embodiments, as shown in Figures 1 to 3 The buffer mechanism 1 includes a nitrite detection reagent tube rack 11 and a feeding buffer rack 12. The nitrite detection reagent tube rack 11 is used to store detection reagents, and the feeding buffer rack 12 is used to store containers including test tubes and cans.

[0088] In this embodiment, the nitrite detection reagent tube rack 11 is specifically used to store reagent tubes (centrifuge tubes) required for nitrite detection. These reagent tubes usually contain chemical reagents for detecting the concentration of nitrite. The feeding buffer rack 12 is used to store containers to be detected, including test tubes and cans. Test tubes are usually used for small sample detection, while cans are suitable for large sample storage and detection.

[0089] Before the detection starts, the staff places the reagent tubes required for nitrite detection on the nitrite detection reagent tube rack 11. These reagent tubes will be taken by the transfer mechanism 3 as needed during the detection process.

[0090] The milk samples to be detected are placed in test tubes or cans and placed on the feeding buffer rack 12. The transfer mechanism 3 will grab the corresponding containers from the feeding buffer rack 12 for pretreatment and detection according to the detection requirements.

[0091] The transfer mechanism 3 grabs the containers from the feeding buffer rack 12 and transfers them to the constant temperature sink 21, the oscillator 22, and the cap twisting machine 23 for pretreatment. After pretreatment, the transfer mechanism 3 transfers the containers to the corresponding detection buffer rack (such as the nitrite detection buffer rack 24, the density detection buffer rack 25, etc.) according to the detection requirements. During the detection phase, the transfer mechanism 3 grabs the containers from the detection buffer rack and sends them to the corresponding detection mechanism for detection. After detection, the detection mechanism feeds back the detection results to the system and notifies the transfer mechanism 3 to perform the next operation. After all detection steps are completed, the transfer mechanism 3 takes the containers from the last detection mechanism and transfers them to the discharging buffer rack 28 or the designated discharging location.

[0092] It should be noted that the feeding buffer frame 12 in the embodiment includes a milk tank feeding frame, a nitrite detection reagent tube frame 11 and a 50ml centrifuge tube frame. The discharging buffer frame 28 includes a 50ml centrifuge tube frame, a milk tank holder, a long test tube buffer frame, an acidity tube frame and a freezing point test tube frame. The milk tank feeding frame is specially used for storing milk tanks containing dairy product samples. The 50ml centrifuge tube frame is used for storing 50ml centrifuge tubes containing dairy product samples. The milk tank holder is specially used for storing milk tanks that have completed detection. The long test tube buffer frame is used for storing long test tubes that have completed detection. The acidity tube frame is specially used for storing test tubes that have completed acidity detection. The design of the acidity tube frame should facilitate the quick identification and removal of the acidity test tubes by the staff so as to facilitate subsequent data recording or sample processing. The freezing point test tube frame is used for storing test tubes that have completed freezing point detection. The design of the freezing point test tube frame should ensure the stability and easy accessibility of the test tubes so that the staff can quickly and accurately remove the test tubes for subsequent processing or data analysis.

[0093] In some embodiments, as shown in FIG. 1, the transport mechanism 3 includes a first transport robot 31 and a second transport robot 32, which are used to transport the containers in the buffer mechanism 1 to the pretreatment mechanism 2, and in the case of nitrite detection, to the nitrite detection buffer, in the case of density detection, to the density detection buffer frame 25 for detection, in the case of freezing point detection, to the freezing point detection buffer frame 26 for detection, and in the case of acidity detection, to the acidity detection buffer frame 27 for detection. The second transport robot 32 is used to transport the containers that have completed detection to the discharging buffer frame 28. Figures 1 to 4 Specifically, the first transport robot 31 is mainly used to transport the containers in the buffer mechanism 1 to the pretreatment mechanism 2 (such as the shaker 22, the cap screwing machine 23, etc.), and in the case of need, to the specific detection buffer frame (such as the nitrite detection buffer frame 24, the density detection buffer frame 25, the freezing point detection buffer frame 26, the acidity detection buffer frame 27) for detection.

[0094]

[0095] ​The first transfer robot 31 includes a first mechanical arm 311 and a first gripper 312. The first mechanical arm 311 adopts a six-axis design, with high flexibility and precision, capable of achieving precise control of the container pose. The first gripper 312 is provided at the execution end of the first mechanical arm 311, used to clamp and release the container. The design of the gripper should adapt to containers of different sizes and shapes to ensure the stability and reliability of the clamping process. The first mechanical arm 311 controls the first gripper 312 to move to a designated position in the buffer mechanism 1 according to the preset program or instructions, clamping the container to be transferred. The first mechanical arm 311 transfers the container to the pre-processing mechanism 2 (such as the shaker 22) for necessary pre-processing operations (such as shaking and mixing). According to the detection requirements, the first mechanical arm 311 transfers the container to the corresponding detection buffer rack for detection. After detection is completed, the first mechanical arm 311 transfers the container to a designated position, waiting for further processing by the second transfer robot 32 or transferring to the discharge buffer rack 28.

[0096] The second transfer robot 32 is mainly used to transfer the containers that have completed detection to the discharge buffer rack 28, and also responsible for sampling operations of dairy products when needed. The second transfer robot 32 includes a second mechanical arm 321, a second gripper 322, and a pipette 323. The second mechanical arm 321 also adopts a six-axis design, with high flexibility and precision. The second gripper 322 is provided at the execution end of the second mechanical arm 321, used to clamp and release the container. The design of the gripper should be similar to the first gripper 312 to adapt to containers of different sizes and shapes. The pipette 323 is spaced apart from the second gripper 322 and provided at the execution end of the second mechanical arm 321. The pipette 323 is used for sampling operations of dairy products, with precise sampling volume and sampling position control capabilities.

[0097] The second mechanical arm 321 controls the second gripper 322 to move to a designated position according to the preset program or instructions, clamping the container to be transferred. If sampling operation is needed, the second mechanical arm 321 moves the pipette 323 above the container to perform sampling. After sampling is completed, the pipette 323 transfers the sample to a designated detection instrument or container. The second mechanical arm 321 transfers the container that has completed detection to a designated position on the discharge buffer rack 28. Wait for the next instruction or task, continue to perform transfer or sampling operations.

[0098] In some embodiments, as shown in Figures 1 to 3 The dairy product detection work station also includes a code scanner 8. The code scanner 8 is provided on one side of the buffer mechanism 1, and the code scanner 8 is used to scan the container grabbed by the transfer mechanism 3.

[0099] The code scanner 8 can quickly and accurately identify the bar code or two-dimensional code on the container and read the information therein. The information obtained by scanning will be automatically recorded in the information system of the detection station, providing basic data for subsequent detection processes, data processing and result tracing. The information identified by the code scanner 8 can also be used to control the process of the detection station, such as automatically assigning detection items, detection order, etc. according to the sample number.

[0100] During the working process, the code scanner 8 has entered the standby state before the transfer mechanism 3 prepares to grab the container, waiting for a scanning instruction. When the transfer mechanism 3 grabs the container and moves to the scanning range of the code scanner 8, the code scanner 8 automatically starts the scanning function to scan the bar code or two-dimensional code on the container. After the code scanner 8 successfully scans, the read information is transmitted to the information system of the detection station through the data line or wireless way for recording. According to the information obtained by scanning, the information system of the detection station will automatically control the subsequent detection process, such as assigning detection items, adjusting detection order, etc.

[0101] In some embodiments, as shown in Figure 6 The nitrite detection mechanism 7 includes a sampling unit 71, a mixing unit 72 and a visual detection unit 73. The sampling unit 71 is used to sample the to-be-tested sample and the detection reagent respectively, and add the sampled to-be-tested sample and detection reagent into the test tube on the mixing unit 72 in sequence. The mixing unit 72 is used to shake the test tube. The transfer mechanism 3 is used to transfer the shaken test tube to the visual detection unit 73. The visual detection unit 73 is used to visually detect the liquid in the test tube to determine whether the nitrite content in the to-be-tested sample is qualified.

[0102] It can be understood that, in order to detect the nitrite content in the sample, the detection reagent is added to the sample, and the detection is performed by colorimetry, that is, the change of color is used to determine whether the nitrite in the liquid exceeds the standard.

[0103] The mixing unit 72 is used to accommodate the test tube and shake the test tube. Optionally, the mixing unit 72 can accommodate multiple test tubes and simultaneously shake multiple test tubes. Specifically, the mixing unit 72 can use a shaking unit to shake the test tube, so that the sample and the detection reagent in the test tube are mixed uniformly.

[0104] The sampling unit 71 can automatically sample the sample and the detection reagent quantitatively and add the sample and the detection reagent into the test tube respectively. Specifically, the sampling unit 71 can be configured with a measuring spoon or a titration test tube to perform the sampling operation with precise volume.

[0105] The visual inspection unit 73 identifies the color of the liquid in the test tube and compares it with a standard color to determine whether the nitrite content of the liquid in the test tube is qualified. If it is qualified, the transfer mechanism 3 pours the liquid in the test tube into the waste liquid bucket. If it is not qualified, manual intervention is required to trace the unqualified sample and handle it accordingly.

[0106] Centrifuge tubes containing samples are transferred from the previous station to the nitrite detection buffer rack 24 by the transfer mechanism 3. The sampling unit 71 takes a sample from the centrifuge tube and adds the sample to the test tube. The sampling unit 71 also adds the test reagent to the test tube. The sample and test reagent are mixed in the test tube. The mixing unit 72 shakes the liquid in the test tube. The transfer mechanism 3 transfers the shaken test tube to the visual inspection unit 73. The visual inspection unit 73 determines whether the nitrite content of the liquid in the test tube is qualified by recognizing and comparing the color in the test tube.

[0107] In some embodiments, such as Figure 7 As shown, the density detection mechanism 4 includes: a sample aspiration unit 41, a sample buffer unit 42, a sample injection unit 43, and a density detection mechanism 44. The sample aspiration unit 41 is used to aspirate the sample to be tested from the tank; the sample buffer unit 42 includes a turntable and a measuring cylinder disposed on the turntable, the turntable being adapted to drive the measuring cylinder to move between the detection station and the injection station; the sample injection unit 43 is connected to the sample aspiration unit 41, and the sample injection unit 43 is configured to inject the sample to be tested aspirated by the sample aspiration unit 41 into the measuring cylinder located at the injection station; the density detection unit 44 is configured to perform density detection on the sample to be tested in the measuring cylinder at the detection station.

[0108] In this embodiment, the sample aspiration unit 41 is responsible for aspirating samples from the container on the density detection buffer rack 25. The turntable of the sample buffer unit 42 moves the measuring cylinder between the detection station and the liquid injection station. When the measuring cylinder is at the liquid injection station, it can receive samples from the sample injection unit 43; and when it moves to the detection station, density detection can be performed. The sample injection unit 43 is connected to the sample aspiration unit 41 and is responsible for injecting the aspirated sample into the measuring cylinder at the liquid injection station. This ensures that the sample can be accurately and quickly transferred to the measuring cylinder, preparing it for subsequent density detection. The density detection unit 44 performs density detection on the sample in the measuring cylinder at the detection station.

[0109] During operation, the density testing station first places the sample-containing containers onto the density testing buffer rack 25. These containers have undergone pretreatment, such as thorough mixing and temperature adjustment, to ensure the accuracy of the test results.

[0110] The sample suction unit 41 is activated, moves above the density detection buffer rack 25, and accurately aligns with the sample position in the tank. The sample suction unit 41 starts working, using negative or positive pressure technology to suck a certain amount of sample into the suction unit. The sample suction unit 41 transfers the sucked sample to the detection cylinder in the sample buffer unit 42. During this process, the turntable has moved to the liquid injection station, waiting to receive the sample. After the sample injection is completed, the turntable starts to rotate, moving the detection cylinder from the liquid injection station to the detection station.

[0111] When the detection cylinder reaches the detection station, the density detection unit 44 starts working to detect the density of the sample. After the measurement is completed, the density detection unit 44 sends the results to the data recording system or the display screen for the operator to view.

[0112] In some embodiments, as shown in FIG. 5, the freezing point detection mechanism 5 includes a freezing point detection pipetting unit 51 and a freezing point detector 52. The freezing point detection pipetting unit 51 is used to receive the containers transported by the transportation mechanism 3, and the freezing point detector 52 is used to detect the freezing point of the sample in the container. Figures 1 to 3

[0113] The main function of the freezing point detection pipetting unit 51 is to receive the containers transported by the transportation mechanism 3 and accurately extract a certain amount of dairy sample from it for detection by the freezing point detector 52. The pipetting unit is usually composed of a pipette, a pipetting pump, a driving mechanism, etc. The pipette is used to insert into the container and suck the sample, and the pipetting pump provides the power required for sucking and discharging the sample. The driving mechanism is responsible for controlling the movement of the pipette and the pipetting pump to achieve accurate pipetting operation.

[0114] When the transportation mechanism 3 transports the container containing the dairy sample to the freezing point detection pipetting unit 51, the pipetting unit will automatically position above the container and insert into the container through the pipette. Then, the pipetting pump starts working to suck a certain amount of sample into the pipette. After completing the sampling, the pipette moves to the sample inlet of the freezing point detector 52 to inject the sample into the freezing point detector 52 for detection.

[0115] In some embodiments, as shown in FIG. 6, the acidity detection mechanism 6 includes an acidity titrator 61 and an acidity detection pipetting unit 62. The acidity titrator 61 is used to receive the containers transported by the transportation mechanism 3 and detect the acidity of the sample to be measured in the container by titration method; the acidity detection pipetting unit 62 is used to move the container after the acidity detection in the acidity titrator 61 is completed. Figures 1 to 3

[0116] ​​When the transport mechanism 3 sends the container containing the sample to be tested to the acidity titrator 61, the acidity titrator 61 will automatically position and fix the container. The titrant is added drop by drop into the sample. As the titrant is added, the pH value of the sample gradually changes, and the pH electrode monitors this change in real time and sends the data to the system. When the system determines that the sample has reached the predetermined endpoint (such as the pH value is stable or reaches a certain specific value), the titration process is complete, and the acidity value of the sample can be calculated at this time. When the acidity titrator 61 completes the titration and calculates the acidity value, the acidity detection pipetting unit 62 starts to work. According to the preset path and speed, the container is moved to the designated position, and the container removal operation is completed.

[0117] In addition, as Figures 1 to 3 indicated, there is also a waste liquid treatment mechanism 9. The waste liquid treatment mechanism 9 is used to treat various waste liquids generated during the detection process, to ensure that these waste liquids do not harm the environment and human health.

[0118] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A dairy product inspection station, characterized in that, The application relates to a multi-functional automatic detection device for nitrite, density, freezing point and acidity. The device comprises: a buffer mechanism for storing containers containing samples to be detected; a pretreatment mechanism for oscillating and opening the containers; a nitrite detection mechanism for detecting nitrite in the samples in the containers; a density detection mechanism for detecting density of the samples in the containers; a freezing point detection mechanism for detecting freezing point of the samples in the containers; an acidity detection mechanism for detecting acidity of the samples in the containers; 2. The dairy product testing station according to claim 1, characterized in that, a transfer mechanism for transferring the containers in the buffer mechanism to the pretreatment mechanism, and transferring the containers to the nitrite detection mechanism for detection when nitrite detection is required, transferring the containers to the density detection mechanism for detection when density detection is required, transferring the containers to the freezing point detection mechanism for detection when freezing point detection is required, and transferring the containers to the acidity detection mechanism for detection when acidity detection is required. The pretreatment mechanism comprises a constant-temperature water tank, an oscillator and a cap screwing machine. The transfer mechanism is used for transferring the containers to the constant-temperature water tank before oscillation treatment, and the constant-temperature water tank is used for constant-temperature treatment of the containers to a specified temperature. The transfer mechanism is used for grabbing the containers containing samples to be detected and transferring the containers to the oscillator, and the oscillator is used for oscillation treatment of the containers.

3. The dairy product testing station according to claim 2, characterized in that, The transfer mechanism is also used for transferring the containers after oscillation treatment to the cap screwing machine, and the cap screwing machine is used for opening the containers for subsequent at least one of nitrite detection, density detection, freezing point detection and acidity detection. The pretreatment mechanism further comprises a nitrite detection buffer rack, a density detection buffer rack, a freezing point detection buffer rack, an acidity detection buffer rack and a discharging buffer rack. The nitrite detection buffer rack is arranged on the nitrite detection mechanism, the density detection buffer rack is arranged on the density detection mechanism, the freezing point detection buffer rack is arranged on one side of the freezing point detection mechanism, and the acidity detection buffer rack is arranged on one side of the acidity detection mechanism.

4. The dairy detection station according to claim 2, characterized in that, The transfer mechanism is used for transferring the containers to the nitrite detection buffer rack, the density detection buffer rack, the freezing point detection buffer rack and the acidity detection buffer rack, and transferring the containers to the discharging buffer rack after corresponding detection is completed. The buffer mechanism comprises a nitrite detection reagent tube rack and a feeding buffer rack.

5. The dairy detection station according to claim 3, characterized in that, The nitrite detection reagent tube rack is used for storing detection reagents, and the feeding buffer rack is used for storing the containers, which comprise test tubes and can bodies. The transfer mechanism comprises: A first transfer robot is configured to transfer the container in the buffer mechanism to the pretreatment mechanism, and transfer the container to the nitrite detection buffer when nitrite detection is required, to the density detection buffer for density detection when density detection is required, to the freezing point detection buffer for freezing point detection when freezing point detection is required, and to the acidity detection buffer for acidity detection when acidity detection is required. A second transfer robot is configured to transfer the container after detection to the unloading buffer.

6. The dairy detection station of claim 1, wherein, The dairy product detection workstation further comprises: A code scanner is arranged on one side of the buffer mechanism, and the code scanner is configured to scan the container grabbed by the transfer mechanism.

7. The dairy product testing station according to any one of claims 1-6, characterized in that, The nitrite detection mechanism comprises: A sampling unit, a mixing unit, and a visual detection unit. The sampling unit is configured to sample the to-be-detected sample and the detection reagent respectively, and add the sampled to-be-detected sample and detection reagent into a test tube on the mixing unit in sequence. The mixing unit is configured to shake the test tube; and the transfer mechanism is configured to transfer the shaken test tube to the visual detection unit. The visual detection unit is configured to visually detect the liquid in the test tube to determine whether the nitrite content in the to-be-detected sample is qualified.

8. The dairy product testing station according to any one of claims 1-6, characterized in that, The density detection mechanism comprises: A sample suction unit is configured to suck the to-be-detected sample in the tank; A sample buffer unit comprises a turntable and a detection cylinder arranged on the turntable, and the turntable is configured to drive the detection cylinder to move between a detection station and a liquid injection station; A sample injection unit is in communication with the sample suction unit, and the sample injection unit is configured to inject the to-be-detected sample sucked by the sample suction unit into the detection cylinder at the liquid injection station; A density detection unit is configured to detect the density of the to-be-detected sample in the detection cylinder at the detection station.

9. The dairy product testing station according to any one of claims 1-6, characterized in that, The freezing point detection mechanism comprises: A freezing point detection pipetting unit is configured to receive the container transferred by the transfer mechanism; A freezing point detector is configured to detect the freezing point of the sample in the container.

10. The dairy product testing station according to any one of claims 1-6, characterized in that, The acidity detection mechanism comprises: An acidity titrator is configured to receive the container transferred by the transfer mechanism, and detect the acidity of the to-be-detected sample in the container by titration; An acidity detection pipetting unit is configured to move the container after acidity detection in the acidity titrator out.

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