Continuous food detection device

Abstract

The invention discloses a continuous food detection device, and belongs to the technical field of food detection. The continuous food detection device comprises a detection frame, and a material loading and unloading assembly, a reagent adding assembly and a detection assembly which are arranged on the detection frame, the material loading and unloading assembly is rotationally arranged on the detection frame, the material loading and unloading assembly is provided with a plurality of detection positions, the detection positions sequentially comprise a feeding station, a reagent adding station, a detection station and a discharging station in the rotating direction of the material loading and unloading assembly, and the reagent adding station and the detection station correspond to the reagent adding assembly and the detection assembly respectively; the material loading and unloading assembly comprises a rotating table and material storage assemblies, containing grooves are formed in the positions, at all stations, of the rotating table, and the material storage assemblies are placed in the containing grooves. The multiple stations can be used for sequentially carrying out feeding, reagent adding, detection and discharging operation on food, continuous detection of food detection is achieved, the detection time is shortened, and the detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of food testing technology, and specifically to a continuous food testing device. Background Technology

[0002] Currently, food quality control relies heavily on sampling inspections after processing. This requires drawing multiple samples from the same batch and analyzing them separately for physicochemical or biological indicators. However, traditional sampling inspection methods are often time-consuming, have limited coverage, and are difficult to monitor in real time throughout the entire process. Furthermore, there is a certain contradiction between the representativeness of the sampled samples and the timeliness of the testing.

[0003] Most common rapid food testing equipment on the market currently adopts a single-sample sequential testing mode. During testing, reagents are added to a special container, and the corresponding data can only be obtained after the reagents have fully reacted with the sample. This discrete operation method has several obvious drawbacks: First, sequential sample processing easily leads to sample sedimentation, affecting the representativeness of the test. Remixing is often required before each test, making it difficult to achieve truly "sequential" testing. Second, frequent manual intervention is required. After each sample is completed, the operator must manually change the sample and add reagents, during which time the equipment is idle, significantly reducing overall testing efficiency and increasing labor intensity. Third, the detection probe or sensor is prone to residual liquid or sample debris during continuous use. If not cleaned promptly, this can introduce cross-contamination, interfering with the accuracy of subsequent test results. Summary of the Invention

[0004] The purpose of this invention is to provide a continuous food testing device to solve at least one of the above-mentioned technical problems.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0006] A continuous food testing device includes: a testing frame, a material loading and unloading assembly, a reagent adding assembly, and a testing assembly mounted on the testing frame;

[0007] The material loading and unloading assembly is rotatably mounted on the testing frame. The material loading and unloading assembly is equipped with several testing positions. Along the rotation direction of the material loading and unloading assembly, the testing positions include, in sequence, a feeding station, a reagent adding station, a testing station, and a discharging station. The reagent adding station and the testing station correspond to the reagent adding assembly and the testing assembly, respectively.

[0008] The material loading and unloading assembly includes a rotary table and a storage assembly. The rotary table has a receiving slot at each station, and the storage assembly is placed in the receiving slot.

[0009] Furthermore, the aforementioned storage assembly includes a storage cylinder placed in a receiving tank, a cylinder cover detachably connected to the storage cylinder, a stirring rod rotatably mounted on the cylinder cover, and a stirrer mounted on the outside of the stirring rod; the stirring rod is hollow with an opening at the top and several flow holes in its middle.

[0010] Furthermore, the top of the aforementioned stirring rod is constricted, and the stirring rod is connected to the cylinder cover via a roller bearing. The cylinder cover is sealed to the storage cylinder via a sealing ring.

[0011] Furthermore, the aforementioned storage cylinder is connected to the rotary table via a fixing assembly;

[0012] The fixing assembly includes a first clamp and a second clamp that slide with the rotary table, and a lifting mechanism; the arc-shaped surfaces of the first clamp and the second clamp are arranged opposite each other and are close to the side of the receiving groove. The lifting mechanism slides with the first clamp and the second clamp, and the direction of the sliding engagement has an angle with the vertical and horizontal directions. During the lifting process, the lifting mechanism drives the first clamp and the second clamp to move closer or further away from each other, clamping and releasing the storage cylinder.

[0013] Furthermore, the aforementioned lifting mechanism includes a support box fixedly connected to the outer wall of the rotary table, a drive block disposed on the support box, a drive rod connected to the bottom of the drive block and slidably engaged with the support box, a spring disposed between the drive block and the top of the support box, and an arc-shaped guide frame disposed on the detection frame and arranged around the rotary table.

[0014] The drive block has inclined guide grooves at both ends, and guide rods slide in the guide grooves. The guide rods are connected to the corresponding clamps. The drive rods slide in cooperation with the top wall of the arc-shaped guide frame. Along the rotation direction of the material loading and unloading assembly, the arc-shaped guide frame extends from the loading station to the unloading station. The arc-shaped guide frame has guide slopes at both ends.

[0015] Furthermore, the reagent addition assembly includes a support mounted on the detection rack, a dispensing box mounted on the support, and a quantitative dispenser rotatably mounted inside the dispensing box; the quantitative dispenser has several dispensing chambers along its rotation center, with openings at the top and bottom of each dispensing chamber, the top opening of one of the dispensing chambers communicating with a storage tank, and the bottom opening of one of the remaining dispensing chambers opposite to the top opening of a stirring rod located at the reagent addition station; the stirring rod is connected to the support via a friction wheel assembly.

[0016] Furthermore, the top opening and bottom opening of the discharge chamber are respectively sealed to the inner top wall and inner bottom wall of the discharge box.

[0017] Furthermore, the aforementioned detection assembly includes a detection instrument body, a detection instrument probe, and a telescopic component that drives the detection instrument probe to reciprocate in the vertical direction. The detection instrument probe is opposite to the top opening of the stirring rod located at the detection station.

[0018] Furthermore, the aforementioned detection assembly also includes a rinsing assembly; the rinsing assembly includes a collection box arranged around the detector probe and a drive component that drives the collection box to reciprocate in the horizontal direction. One side of the collection box is provided with a relief groove that matches the detector probe. The bottom of the collection box is a collection chamber, and the collection chamber is provided with a rinsing head that sprays water upward and a drain pipe.

[0019] Furthermore, a heater is provided at the bottom of the aforementioned receiving tank.

[0020] The present invention has the following beneficial effects:

[0021] (1) The present invention is provided with a feeding station, a reagent adding station, a testing station and a unloading station. The rotary table is provided with a receiving tank for accommodating the storage components at each station. During the intermittent rotation of the rotary table, the food can be fed, reagents added, tested and unloaded in sequence, so as to realize continuous food testing, shorten the testing time and improve the testing efficiency.

[0022] (2) The storage cylinder of the storage component of the present invention is provided with a stirring rod, which is hollow and has several flow holes, so that the stirring rod not only has a stirring function but also a filtering function, ensuring that the food and reagents are fully and evenly mixed, and facilitating the addition of reagents and testing from the top of the stirring rod, avoiding the accumulation of impurities, food residues, etc. during the stirring process, which makes it inconvenient to test.

[0023] (3) The present invention provides a rinsing assembly on the outside of the detector probe of the detector body. During the detection, the detector is placed on the outside of the rinsing assembly, which makes it easy for the detector to extend into the stirring rod for detection. After the detection is completed, the detector is placed in the rinsing assembly and the detector is rinsed by the rinsing head to avoid cross-contamination during continuous detection, thereby improving the accuracy of each detection. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of one side structure of the continuous food detection device provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the other side of the continuous food detection device provided in an embodiment of the present invention;

[0026] Figure 3 A cross-sectional structural diagram of the continuous food testing device provided in an embodiment of the present invention at the material loading and unloading assembly;

[0027] Figure 4 This is a schematic diagram of the structure of the fixing component provided in an embodiment of the present invention;

[0028] Figure 5A schematic cross-sectional view of the reagent addition component in the continuous food testing device provided in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram showing the connection between the stirring rod and the support provided in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the installation structure of the detector probe provided in an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the rinsing assembly provided in an embodiment of the present invention.

[0032] In the diagram: 10-Detection frame; 11-Baffle; 20-Material loading and unloading assembly; 21-Rotating table; 22-Storage assembly; 23-Receiving tank; 30-Reagent addition assembly; 31-Discharge box; 32-Quantitative dispenser; 33-Discharge chamber; 34-Storage tank; 40-Detection assembly; 41-Detector body; 42-Detector probe; 43-Telescopic component; 44-Collection box; 45-Drive component; 46-Rinsing head; 47-Drain pipe; 51-First clamp; 52-Second clamp; 53-Lifting mechanism; 221-Storage cylinder; 222-Cylinder cover; 223-Stirring rod; 224-Stirrer; 531-Support box; 532-Drive block; 533-Drive rod; 534-Spring; 535-Arc-shaped guide frame; 536-Guide groove; 537-Guide rod; 538-Guide slope. Detailed Implementation

[0033] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0034] like Figure 1 and Figure 2 As shown, this embodiment provides a continuous food testing device, including: a testing rack 10; a material loading and unloading assembly 20 disposed on the testing rack 10 for loading and unloading food; a reagent adding assembly 30 disposed on the testing rack 10 for adding reagents to the food and mixing it; and a testing assembly 40 disposed on the testing rack 10 for testing the food. This food testing device is used to test liquid food or food contained in liquid, and the testing items include, but are not limited to, pH value testing, pesticide residue testing, acidity / alkalinity testing, and heavy metal testing. The reagent adding assembly 30 may or may not add reagents during the entire testing process, depending on the actual testing items. The testing assembly 40 may or may not perform testing during the entire testing process, depending on the actual testing items. For example, when testing is performed using a color observation method, the testing assembly 40 may not be required.

[0035] like Figure 3 and Figure 4 As shown, the material loading and unloading assembly 20 is rotatably mounted on the detection frame 10. The material loading and unloading assembly 20 is provided with several detection positions. Along the rotation direction of the material loading and unloading assembly 20, the detection positions sequentially include at least a feeding station, a reagent adding station, a detection station, and a discharging station. The reagent adding station and the detection station correspond to the reagent adding assembly 30 and the detection assembly 40, respectively. Obviously, there can be multiple feeding stations and discharging stations to provide sufficient time for feeding and discharging. Obviously, there can also be several storage stations.

[0036] The material loading and unloading assembly 20 includes a rotary table 21 and a storage assembly 22. The bottom of the rotary table 21 is rotatably connected to the testing frame 10 via bearings. To achieve automatic testing, a driver, such as a motor, can be installed on the testing frame 10 to drive the rotary table 21 to rotate intermittently. The top of the rotary table 21 has receiving slots 23 at each station, and all receiving slots 23 are arranged in a ring around the rotation axis of the rotary table 21. The storage assembly 22 is used to store the food to be tested and places it in the receiving slots 23. It intermittently stops at each station as the rotary table 21 rotates, thereby sequentially performing reagent addition and testing operations.

[0037] Preferably, the bottom wall of the receiving tank 23 is provided with a heater for heating the material in the storage cylinder 221.

[0038] The storage assembly 22 includes a storage cylinder 221, a cylinder cover 222, a stirring rod 223, and a stirrer 224. The storage cylinder 221 has an open top and a bottom for placement within a receiving tank 23. The main body of the storage cylinder 221 can be made of a transparent material, preferably glass, to facilitate observation of material addition and color changes. The cylinder cover 222 is detachably connected to the top opening of the storage cylinder 221, and the connection method includes, but is not limited to, threaded connection and snap-fit ​​connection. The stirring rod 223 passes through the cylinder cover 222 and extends into the storage cylinder 221. The stirring rod 223 and the cylinder cover 222 are connected by a rolling bearing to ensure that the stirring rod 223 can rotate. The stirring rod 223 is hollow, with an open top and a sealed bottom. The portion of the stirring rod 223 located inside the storage cylinder 221 has several flow holes for liquid flow and provides a filtering function. When conducting pesticide residue testing, if the material placed in the storage cylinder 221 contains chopped food residue, the flow hole allows the reagent to be fully mixed, and also ensures that the internal space of the stirring rod 223 is convenient for the insertion and detection of the detector probe 42. The stirrer 224 is fixedly connected to the outside of the stirring rod 223, and its shape is not limited. It can be a propeller type or a blade type, as long as it can be fully stirred under the action of the stirring rod 223.

[0039] In this embodiment, after the storage cylinder 221 extends into the receiving groove 23, it is connected to the rotating table 21 through a fixing assembly. The fixing assembly includes a first clamp 51, a second clamp 52, and a lifting mechanism 53. Both the first clamp 51 and the second clamp 52 are slidably engaged with the rotating table 21, and the sliding direction is towards and away from the receiving groove 23. The first clamp 51 and the second clamp 52 can move closer to or further away from each other, thereby achieving the clamping and releasing of the storage cylinder 221. The first clamp 51 and the second clamp 52 are slidably engaged with the lifting mechanism 53, and the sliding engagement direction has an angle with both the vertical and horizontal directions. Therefore, during the lifting process, the lifting mechanism 53 will drive the first clamp 51 and the second clamp 52 to move closer to or further away from each other.

[0040] The lifting mechanism 53 includes a support box 531 fixedly connected to the outer wall of the rotary table 21, a drive block 532 disposed on the support box 531, a drive rod 533 connected to the bottom of the drive block 532 and slidably engaged with the support box 531, a spring 534 disposed between the drive block 532 and the top of the support box 531, and an arc-shaped guide frame 535 disposed on the detection frame 10 and surrounding the rotary table 21. The drive block 532 has inclined guide grooves 536 at both ends, and a guide rod 537 is slidably disposed within the guide grooves 536, with the guide rod 537 connected to a corresponding clamp. The drive rod 533 slidably engages with the top wall of the arc-shaped guide frame 535. Along the rotation direction of the material loading and unloading assembly 20, the arc-shaped guide frame 535 extends from the loading station to the unloading station, and guide ramps 538 are provided at both ends of the arc-shaped guide frame 535.

[0041] During the rotation of the rotary table 21, the drive rod 533 slides to the top wall of the arc-shaped guide frame 535 through the guide inclined surface 538. At this time, the drive rod 533 moves upward as a whole, thereby driving the drive block 532 to move upward. Since the guide rod 537 and the guide groove 536 slide in the inclined direction, the first clamp 51 and the second clamp 52 will move closer to each other synchronously, thereby clamping and fixing the storage cylinder 221 when loading. Similarly, when unloading, the drive block 532 moves downward under the action of the spring 534, thereby driving the first clamp 51 and the second clamp 52 to move away from each other synchronously, releasing the fixation of the storage cylinder 221.

[0042] Preferably, the bottom end of the drive rod 533 is provided with a ball bearing to reduce the friction between it and the arc-shaped guide frame 535.

[0043] like Figure 5 and Figure 6As shown, the reagent addition assembly 30 includes a support, a dispensing tank 31, and a quantitative dispenser 32. The support is fixedly installed on the top of the detection rack 10 and close to the reagent addition station. The dispensing tank 31 is fixedly installed on the support. The quantitative dispenser 32 is rotatably disposed inside the dispensing tank 31. Several dispensing chambers 33 are arranged in a ring around the center of rotation inside the quantitative dispenser 32. Both the top and bottom of each dispensing chamber 33 are open. The top opening is used for collecting the quantitative reagent, and the bottom opening is used for dispensing the quantitative reagent into the storage cylinder 221. In actual use, the top opening of one dispensing chamber 33 communicates with the storage tank 34, and the bottom opening of another dispensing chamber 33 is opposite to the top opening of the stirring rod 223 located at the reagent addition station. The other openings are sealed to the dispensing tank 31 to ensure quantitative reagent dispensing.

[0044] To achieve automatic feeding, a driver such as a motor can be installed on the top of the feeding box 31 to drive the quantitative feeder 32 to rotate intermittently, thereby achieving automatic intermittent feeding.

[0045] In this embodiment, the stirring rod 223 is connected to the support via a friction wheel assembly. Specifically, the friction wheel assembly includes a first friction wheel fixedly sleeved on the top of the stirring rod 223 and a second friction wheel rotatably mounted on the support. The first and second friction wheels are driven by friction, causing the stirring rod 223 to rotate. The second friction wheel is positioned to ensure close contact with the first friction wheel without hindering its movement to the next station. Preferably, both the first and second friction wheels are rubber wheels with a certain degree of deformation capability, thus meeting the above requirements. The rotation of the second friction wheel can be driven by a driver such as a motor or by a belt drive.

[0046] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the top of the testing frame 10 is provided with a partition 11. The testing assembly 40 includes a testing instrument body 41, a testing instrument probe 42, and a telescopic component 43. The testing instrument body 41 and the testing instrument probe 42 are located on both sides of the partition 11, isolating the testing and operation. The testing instrument probe 42 is connected to the testing instrument body 41 via a wire. The testing instrument probe 42 is vertically arranged with its testing end located at the bottom. The testing instrument probe 42 is opposite to the top opening of the stirring rod 223 located at the testing station, allowing the testing instrument probe 42 to extend into the stirring rod 223 for testing via the telescopic component 43.

[0047] In this embodiment, the telescopic component 43 is a telescopic electric cylinder, pneumatic cylinder or hydraulic cylinder, which is fixedly installed on the partition 11. The actuating part of the telescopic component 43 is connected to the mounting bracket, and the detector probe 42 is fixedly installed on the mounting bracket.

[0048] The detection assembly 40 also includes a rinsing assembly, which comprises a collection box 44 and a drive unit 45. The collection box 44 has an opening at the top to facilitate the insertion of the detector probe 42. One side of the collection box 44 has a recess that matches the detector probe 42, allowing the probe 42 to be removed from or inserted into the collection box 44. The bottom of the collection box 44 is a collection chamber connected to a rinsing head 46 that sprays water upwards and a drain pipe 47. The drive unit 45 is a telescopic electric cylinder, pneumatic cylinder, or hydraulic cylinder. Its actuating component is connected to the side wall of the collection box 44, driving the collection box 44 to reciprocate horizontally. This intermittently rinses the detector probe 42 through the rinsing head 46, ensuring the accuracy of each detection.

[0049] The continuous food testing device in this embodiment is equipped with a feeding station, a reagent adding station, a testing station, and a unloading station. The rotary table is equipped with a receiving tank for accommodating the storage components at each station. During the intermittent rotation of the rotary table, food can be fed, reagents added, tested, and unloaded in sequence, realizing continuous food testing, shortening the testing time, and improving testing efficiency.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A continuous food detection device, characterized in that, include: The testing rack (10), the material loading and unloading assembly (20), the reagent adding assembly (30) and the testing assembly (40) are disposed on the testing rack (10); The material loading and unloading assembly (20) is rotatably mounted on the detection frame (10). The material loading and unloading assembly (20) is provided with a number of detection positions. Along the rotation direction of the material loading and unloading assembly (20), the detection positions sequentially include a feeding station, a reagent adding station, a detection station and a unloading station. The reagent adding station and the detection station correspond to the reagent adding assembly (30) and the detection assembly (40) respectively. The material loading and unloading assembly (20) includes a rotary table (21) and a storage assembly (22). The rotary table (21) has a receiving slot (23) at each work station, and the storage assembly (22) is placed in the receiving slot (23).

2. The continuous food testing device according to claim 1, characterized in that, The storage assembly (22) includes a storage cylinder (221) placed in the receiving tank (23), a cylinder cover (222) detachably connected to the storage cylinder (221), a stirring rod (223) rotatably mounted on the cylinder cover (222), and a stirrer (224) mounted on the outside of the stirring rod (223); the stirring rod (223) is hollow with an opening at the top and several flow holes in the middle.

3. The continuous food testing device according to claim 2, characterized in that, The top of the stirring rod (223) is constricted. The stirring rod (223) is connected to the cylinder cover (222) through a roller bearing. The cylinder cover (222) is sealed to the storage cylinder (221) through a sealing ring.

4. The continuous food testing device according to claim 2, characterized in that, The storage cylinder (221) is connected to the rotary table (21) via a fixing assembly; The fixing assembly includes a first clamp (51) and a second clamp (52) that slide in cooperation with the rotary table (21), and a lifting mechanism (53); the arc surfaces of the first clamp (51) and the second clamp (52) are arranged opposite each other and are close to the side of the receiving groove (23). The lifting mechanism (53) slides in cooperation with the first clamp (51) and the second clamp (52). The direction of the sliding cooperation has an angle with the vertical and horizontal directions. During the lifting process, the lifting mechanism (53) drives the first clamp (51) and the second clamp (52) to move closer or further away from each other, clamping and releasing the storage cylinder (221).

5. The continuous food testing device according to claim 4, characterized in that, The lifting mechanism (53) includes a support box (531) fixedly connected to the outer wall of the rotary table (21), a drive block (532) disposed on the support box (531), a drive rod (533) connected to the bottom of the drive block (532) and slidably engaged with the support box (531), a spring (534) disposed between the drive block (532) and the top of the support box (531), and an arc-shaped guide frame (535) disposed on the detection frame (10) and surrounding the rotary table (21). The drive block (532) has inclined guide grooves (536) at both ends, and guide rods (537) are slidably arranged in the guide grooves (536). The guide rods (537) are connected to the corresponding clamps. The drive rod (533) is slidably engaged with the top wall of the arc-shaped guide frame (535). Along the rotation direction of the material loading and unloading assembly (20), the arc-shaped guide frame (535) extends from the loading station to the unloading station. The arc-shaped guide frame (535) has guide slopes (538) at both ends.

6. The continuous food testing device according to claim 2, characterized in that, The reagent addition assembly (30) includes a support mounted on the detection rack (10), a feeding box (31) mounted on the support, and a quantitative dispenser (32) rotatably mounted in the feeding box (31). The quantitative dispenser (32) has several feeding chambers (33) along its rotation center. The top and bottom of each feeding chamber (33) are open. The top opening of one feeding chamber (33) is connected to the storage tank (34), and the bottom opening of one of the remaining feeding chambers (33) is opposite to the top opening of the stirring rod (223) located at the reagent addition station. The stirring rod (223) is connected to the support via a friction wheel assembly.

7. The continuous food testing device according to claim 6, characterized in that, The top opening and bottom opening of the discharge chamber (33) are respectively sealed to the inner top wall and inner bottom wall of the discharge box (31).

8. The continuous food detection device according to claim 2, characterized in that, The detection component (40) includes a detector body (41), a detector probe (42), and a telescopic component (43) that drives the detector probe (42) to reciprocate in the vertical direction. The detector probe (42) is opposite to the top opening of the stirring rod (223) located at the detection station.

9. The continuous food detection device according to claim 8, characterized in that, The detection assembly (40) also includes a rinsing assembly; the rinsing assembly includes a collection box (44) arranged around the detector probe (42) and a drive (45) that drives the collection box (44) to reciprocate in the horizontal direction. One side of the collection box (44) is provided with a relief groove that matches the detector probe (42). The bottom of the collection box (44) is a collection chamber, and the collection chamber is provided with a rinsing head (46) that sprays water upward and a drain pipe (47).

10. The continuous food detection device according to any one of claims 1 to 9, characterized in that, A heater is provided at the bottom of the receiving tank (23).

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