Cantonese mooncake water activity testing device and method

Abstract

The invention relates to the technical field of detection equipment, and provides a Cantonese mooncake water activity testing device and method.The Cantonese mooncake water activity testing device comprises a detection box and further comprises an inner testing cylinder, an outer testing cylinder and a water storage tank, the material reserving chamber is formed in the front middle part of the inner measuring cylinder; the placement cavities are formed in the left side and the right side of the interior of the inner measuring cylinder, and the two placement cavities are located on the left portion and the right portion of the material reserving cavity correspondingly; the rotating assembly is installed on the lower portion of the material reserving cavity and used for driving the moon cakes to rotate; the outer fan back plate is mounted at the rear middle part of the material reserving chamber; inner fan polar plates are installed on the inner walls of the left side and the right side of the outer fan back plate, and the outer sides of the two inner fan polar plates are connected with a positive pin and a negative pin of a capacitor through leads respectively. When the mooncake water activity detection device is used, the inner detection cylinder, the material reserving cavity and the inner fan pole plate are used for conducting capacitance water activity detection on the front face and the back face of a mooncake, the electromagnetic wave sensor is used for conducting microwave water activity detection on the side face of the mooncake, and comprehensive water activity detection on the mooncake is achieved through combination of the two.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and more specifically, to a water activity testing device and method for Cantonese mooncakes. Background Art

[0002] In the food industry, water activity is a key indicator for measuring food stability and microbial reproduction ability, which is particularly important for foods such as Cantonese mooncakes. Therefore, accurately controlling water activity is directly related to the shelf life, taste retention, and microbial safety of Cantonese mooncakes.

[0003] As a kind of pasta, if the water activity of mooncakes is too high, it is easy to cause mold growth during storage. In the existing detection of mooncake water activity, a water activity meter is usually used for direct overall detection. However, the overall water activity of mooncakes is closely related to each of its regions. Especially for the side of mooncakes, due to its convex shape, it is difficult to be directly touched and detected, resulting in omissions in the detection results, increasing the risk of local mildew on the side of mooncakes, and further affecting the accurate assessment of the overall water activity of mooncakes.

[0004] Therefore, this application proposes a water activity testing device and method for Cantonese mooncakes to solve the above problems. Summary of the Invention

[0005] Technical problems to be solved: Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a water activity testing device and method for Cantonese mooncakes, which solves the problem that the existing water activity testing device is difficult to detect the side parts of mooncakes, resulting in omissions in the detection results and affecting the accurate assessment of the overall water activity of mooncakes.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: A water activity testing device for Cantonese mooncakes includes a detection box, and further includes: an inner measuring cylinder rotatably installed in the middle of the detection box; a material retaining chamber opened in the front middle part of the inner measuring cylinder; placement chambers opened on the left and right sides inside the inner measuring cylinder, and the two placement chambers are respectively located on the left and right parts of the material retaining chamber; a rotating assembly installed at the lower part of the material retaining chamber for driving the mooncake to rotate; an outer fan-shaped back plate installed at the rear middle part of the material retaining chamber; inner fan-shaped electrodes installed on the inner walls on the left and right sides of the outer fan-shaped back plate, and the outer sides of the two inner fan-shaped electrodes are respectively connected to the positive and negative pins of a capacitor through leads, and the capacitor is installed at the rear side of the top of the inner measuring cylinder; an arc-shaped fan plate installed on the rear inner wall of the outer fan-shaped back plate, and an electromagnetic wave sensor installed on the inner wall of the arc-shaped fan plate; a marking assembly installed inside the outer fan-shaped back plate and buried along the outer contour of the top and bottom of the outer fan-shaped back plate, and the marking assembly is electrically connected to the capacitor and the electromagnetic wave sensor respectively; a horizontal pushing assembly installed on the left side of the detection box for pushing the detected mooncake out of the inner measuring cylinder and the detection box.

[0007] In a new embodiment, a cake inlet is provided in the middle of the front end of the material retaining chamber, and a cake outlet is provided in the middle of the right end of the material retaining chamber.

[0008] In a new embodiment, a chassis is installed at the bottom of the detection box, a first motor is installed in the middle of the bottom end of the chassis, and the output end of the first motor penetrates through the middle of the bottom end of the chassis and is fixedly connected to the bottom end of the inner measuring cylinder.

[0009] In a new embodiment, the inner measuring cylinder of the rotating assembly includes: arc-shaped inner measuring cylinders respectively installed on the inner walls of the lower middle parts on the left and right sides of the inner measuring cylinder of the material retaining chamber; three roller inner measuring cylinders, which are equidistantly and rotatably installed between the arc-shaped inner measuring cylinders on the left and right sides, and an anti-slip layer inner measuring cylinder is installed on the outer side of the roller inner measuring cylinder; a driving cylinder inner measuring cylinder, which is rotatably installed on the upper side of the middle part of the inner measuring cylinder of the material retaining chamber, and one end of the driving cylinder inner measuring cylinder is fixedly connected to the output end of the second motor inner measuring cylinder, and the second motor inner measuring cylinder is installed on the upper middle part of the inner wall of the left placement cavity; two groups of guiding cylinder inner measuring cylinders, which are respectively rotatably installed on the upper and lower parts of the front end of the inner measuring cylinder of the material retaining chamber.

[0010] In a new embodiment, an air isolation film is installed on the inner wall of the material retaining chamber, and an air isolation film is also installed on the inner wall of the detection box.

[0011] In a new embodiment, a dehumidifier is installed in the middle of the front part of the top end of the inner measuring cylinder, and an outer ventilation cover installed at the front part of the top end of the inner measuring cylinder is arranged outside the dehumidifier.

[0012] In a new embodiment, the marking assembly includes: two contour buried pipes, which are respectively installed at the top and bottom of the outer fan back plate, and marking nozzles are installed on the left and right sides and the middle of the front part of the contour buried pipes; an inner buried connecting pipe, which is buried in the rear part of the right side of the outer fan back plate, the inner buried connecting pipe is located between the top and bottom contour buried pipes, and both ends of the inner buried connecting pipe are connected to the top and bottom contour buried pipes; a material pump, which is installed on the outer side wall of the right placement cavity; a bottom cone material tank, which is installed on the right side of the top end of the inner measuring cylinder, and the bottom cone material tank is located above the material pump; the feed port of the material pump is communicated with the bottom of the bottom cone material tank through a pipeline, and the discharge port of the material pump is connected to the inner buried connecting pipe through a pipeline.

[0013] In a new embodiment, frame grooves are respectively provided at the upper and lower parts on the left side of the detection box, docking grooves are respectively provided at the upper and lower parts of the rear end of the inner measuring cylinder, and the length and width dimensions of the frame grooves and the docking grooves are the same.

[0014] In a new embodiment, the horizontal pushing assembly includes: an external box, which is installed in the middle of the left side of the detection box; through grooves, which are provided at the upper and lower parts of the external box, and sealing plates are installed in the middle of the through grooves; electric push rods, which are installed in the middle of the sealing plates, and horizontal plates are fixedly installed at the telescopic ends of the electric push rods; air bags, which are installed on the inward side of the horizontal plates.

[0015] In a new embodiment, a method for using a water activity testing device for Cantonese mooncakes includes the following steps:

[0016] S1. Mooncake input: The mooncake is fed into the material-retaining chamber of the inner measuring cylinder through the cake inlet of the detection box and stays in the rotating assembly. The first motor drives the inner measuring cylinder to rotate, so that the material-retaining chamber of the rotated inner measuring cylinder forms a short-term sealed space with the inner wall of the detection box. Under the action of the dehumidifier and the gas barrier film, this space is maintained as a constant temperature and humidity environment, preparing for the subsequent water activity detection;

[0017] S2. Built-in rotation: The rotating assembly starts to work, driving the mooncake staying inside it to turnover. During the rotation of the mooncake, it is divided into multiple fan-shaped areas, and these fan-shaped areas will sequentially pass through the outer fan back plate for water activity detection;

[0018] S3. Water activity detection: Continuing from step S2, when the mooncake passes through the outer fan back plate, the inner fan electrode plates on the left and right sides perform capacitance water activity detection on the mooncake, covering the front and back thicknesses of the whole mooncake. At the same time, the electromagnetic wave sensor on the arc fan plate installed on the outer fan back plate performs microwave feedback water activity detection on the side of the mooncake, realizing the detection of the shallow water activity on the side of the mooncake;

[0019] S4. Abnormal marking: In step S3, if the water activity of the mooncake in one of the fan-shaped areas is abnormal, the marking component will make an edible mark on this fan-shaped area, which is convenient for subsequent traceability to find and handle the faults that cause the abnormal water activity of the mooncake in the previous steps;

[0020] S5. Mooncake output: The horizontal pushing component elastically pushes through the frame slot and the docking slot and extends into the material-retaining chamber, pushing the upper and lower parts of the rear side of the mooncake, and smoothly outputting the detected mooncake from the material-retaining chamber and the detection box.

[0021] Beneficial effects: Compared with the prior art, the advantages of the present invention are as follows: 1. By setting the detection box, the inner measuring cylinder, the material-retaining chamber, the placement chamber and the outer fan back plate, the inner measuring cylinder deflects, so that the opening of the material-retaining chamber forms a sealed space with the inner wall of the detection box, and with the rotation of the mooncake, the inner fan electrode plates are used to perform capacitance water activity detection on the front and back sides of the mooncake, and the electromagnetic wave sensor performs microwave water activity detection on the side of the mooncake. The combination of the two realizes the comprehensive water activity detection of the mooncake.

[0022] 2. Through the cake inlet and the cake outlet of the detection box, it is used in combination with the mooncake transportation line for production, which is convenient for batch detection, meets the requirements of the modern mooncake production line, and ensures the smoothness and high efficiency of the mooncake from production to detection.

[0023] 3. By setting the radian plate, roller, anti-slip layer, drive cylinder, motor, and guide cylinder, it is convenient for mooncakes to enter the material-retaining chamber for effective support, and it is also convenient for the motor to drive the roller to rotate, so that the contacting mooncakes rotate synchronously. Combined with the outer fan back plate, it is convenient to continuously change the detection sector area of the mooncakes.

[0024] 4. The water activity of mooncakes is detected by a capacitor and an electromagnetic wave sensor. An abnormal signal triggers the material pump to extract the pectin solution marked material from the bottom cone material tank, and it is transported through the pipeline to the marking nozzle. For abnormalities on the front and back of the mooncakes, the nozzles on the four sides of the outer fan back plate are used for sector spraying and marking. For side abnormalities, point marking is carried out through the two nozzles at the back. The pectin solution is safe and edible, ensuring that the marking is eye-catching and does not contaminate the mooncakes, and it is also convenient for subsequent traceability.

[0025] 5. By setting the horizontal pushing component, when the frame slot of the detection box is aligned with the docking slot of the inner measuring cylinder, the electric push rod drives the cross plate and the airbag to pass through the frame slot and the docking slot and enter the rear part of the material-retaining chamber. The airbag flexibly contacts the upper and lower sides of the rear part of the mooncake for pushing, which not only avoids damaging the mooncakes but also effectively discharges the mooncakes, facilitating effective batch detection. Brief Description of the Drawings

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the detection box of the present invention.

[0027] Figure 2 It is a position structural schematic diagram of the horizontal pushing component of the present invention.

[0028] Figure 3 It is a chassis structural schematic diagram of the present invention.

[0029] Figure 4 It is a position structural schematic diagram of the frame slot of the present invention.

[0030] Figure 5 It is an internal structural schematic diagram of the horizontal pushing component of the present invention.

[0031] Figure 6 It is a split structural schematic diagram of the detection box and the inner measuring cylinder of the present invention.

[0032] Figure 7 It is a position structural schematic diagram of the marking component of the present invention.

[0033] Figure 8 It is a structural schematic diagram of the rotating component of the present invention.

[0034] Figure 9 It is a structural schematic diagram of the marking nozzle of the present invention.

[0035] Figure 10 It is an internal structural schematic diagram of the material-retaining chamber of the present invention.

[0036] Figure 11Schematic diagram of the top structure of the inner cylinder of the present invention.

[0037] Figure 12 Schematic diagram of the back plate structure of the outer fan of the present invention.

[0038] Figure 13 Schematic diagram of the position structure of the contour buried pipe of the present invention.

[0039] Figure 14 Schematic diagram of the segmentation of the mooncake fan-shaped area of the present invention.

[0040] In the figure, the reference numerals are: 1, detection box; 2, inner cylinder; 3, material retention chamber; 4, placement cavity; 5, rotating assembly; 501, arc plate; 502, roller; 503, anti-slip layer; 504, driving cylinder; 505, motor two; 506, guiding cylinder; 6, outer fan back plate; 7, inner fan electrode plate; 8, lead wire; 9, capacitor; 10, arc fan plate; 11, electromagnetic wave sensor; 12, marking assembly; 1201, contour buried pipe; 1202, marking nozzle; 1203, inner buried connecting pipe; 1204, material pump; 1205, bottom cone material tank; 13, horizontal pushing assembly; 1301, external connection box; 1302, through groove; 1303, sealing plate; 1304, electric push rod; 1305, horizontal plate; 1306, airbag; 14, mooncake inlet; 15, mooncake outlet; 16, chassis; 17, motor one; 18, air isolation film; 19, dehumidifier; 20, outer ventilation cover; 21, frame groove; 22, docking groove. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] In the embodiments of the present application, by providing a Cantonese mooncake water activity testing device and method, the problem that the existing water activity testing device is difficult to detect the side parts of mooncakes, resulting in omissions in the detection results and affecting the accurate evaluation of the overall water activity of mooncakes is solved. When in use, in the present invention, when in use, the capacitance water activity of the front and back sides of the mooncake is detected by using the inner fan electrode plate 7, and the microwave water activity of the side of the mooncake is detected by the electromagnetic wave sensor 11. The combination of the two realizes the comprehensive water activity detection of the mooncake.

[0043] The technical solutions in the embodiments of the present application are generally as follows to solve the above technical problems.

[0044] Embodiment 1

[0045] Please refer to Figures 1-14, A water activity testing device for Cantonese mooncakes, including a detection box 1, and further including: an inner measuring cylinder 2 rotatably installed in the middle of the detection box 1; a material retention chamber 3 opened in the front middle part of the inner measuring cylinder 2; placement cavities 4 opened on the left and right sides inside the inner measuring cylinder 2, and the two placement cavities 4 are respectively located on the left and right parts of the material retention chamber 3; a rotating assembly 5 installed at the lower part of the material retention chamber 3 for driving the mooncake to rotate; an outer fan back plate 6 installed at the rear middle part of the material retention chamber 3; inner fan electrode plates 7 are installed on the inner walls on the left and right sides of the outer fan back plate 6, and the outer sides of the two inner fan electrode plates 7 are respectively connected to the positive and negative pins of a capacitor 9 through leads 8, and the capacitor 9 is installed at the rear side of the top of the inner measuring cylinder 2; an arc fan plate 10 is installed on the rear inner wall of the outer fan back plate 6, and an electromagnetic wave sensor 11 is installed on the inner wall of the arc fan plate 10; a marking assembly 12 is installed inside the outer fan back plate 6, and the marking assembly 12 is buried and distributed along the outer contours of the top and bottom of the outer fan back plate 6, and the marking assembly 12 is electrically connected to the capacitor 9 and the electromagnetic wave sensor 11 respectively; a horizontal pushing assembly 13 is installed on the left side of the detection box 1 for pushing the tested mooncake out of the inner measuring cylinder 2 and the detection box 1.

[0046] By setting up the detection box 1, the inner measuring cylinder 2, the material retention chamber 3, the placement cavities 4 and the outer fan back plate 6, the comprehensive water activity detection of mooncakes is realized. First of all, the inner measuring cylinder 2 and the material retention chamber 3 cooperate with the internal rotating assembly 5 to work, which can intercept the vertical mooncakes entering from the mooncake inlet 14 and temporarily store them in the material retention chamber 3. The rear part of the entering mooncakes also closely adheres to the outer fan back plate 6, which is beneficial to ensuring that all parts of the mooncakes can be evenly tested in the subsequent detection, thus avoiding test errors caused by improper mooncake shape or placement position. Subsequently, the inner measuring cylinder 2 starts to deflect in the detection box 1, and the deflection process is such that the opening of the material retention chamber 3 turns from being aligned with the mooncake inlet 14 to being aligned with the mooncake outlet 15. During this deflection process, the opening of the material retention chamber 3 will be blocked by the inner wall of the detection box 1 during rotation, thereby forming a sealed space for a period of time (the inner measuring cylinder 2 will stay in this stage for a period of time for detection), ensuring that the mooncakes will not be interfered by the external environment during the water activity detection stage. At the same time, when the mooncakes are in this sealed space, by setting up the inner fan electrode plates 7, the leads 8 and the capacitor 9, as well as the arc fan plate 10 and the electromagnetic wave sensor 11 on the rear wall of the outer fan back plate 6, the comprehensiveness of the detection is further improved. Specifically, the inner fan electrode plates 7 on both sides contact the front and back sides of the mooncakes, so that the front and back sides of the mooncakes use the inner fan electrode plates 7 on both sides to perform capacitive water activity detection in multiple fan-shaped areas to obtain the overall water activity state of the front and back sides of the mooncakes. At the same time, the electromagnetic wave sensor 11 performs microwave water activity detection on the side of the mooncakes in a fan-shaped arc. The combination of these two detection methods realizes the capacitive water activity detection of the thickness of the front and back sides of the mooncakes and the comprehensive detection of the microwave shallow water activity on the side, thus ensuring the accuracy and comprehensiveness of the detection, and is applicable to the detection of Cantonese mooncakes and other different types of mooncakes.

[0047] Further, please refer to Figures 1-3 As shown, a cake inlet 14 is provided in the middle of the front end of the material-retaining chamber 3, and a cake outlet 15 is provided in the middle of the right end of the material-retaining chamber 3. The settings of the cake inlet 14 and the cake outlet 15 not only facilitate the smooth discharge and intake of mooncakes, but also conveyor belts can be equipped outside both of them, enabling the water activity test to be integrated into the mooncake production line, realizing the continuous and automated conveyance of mooncakes, and greatly promoting the batch detection efficiency of mooncakes.

[0048] Further, please refer to Figure 3 As shown, a chassis 16 is installed at the bottom of the detection box 1, and a first motor 17 is installed in the middle of the bottom end of the chassis 16. The output end of the first motor 17 penetrates through the middle of the bottom end of the chassis 16 and is fixedly connected to the bottom end of the inner measuring cylinder 2. By installing the chassis 16 and the first motor 17, the first motor 17 will drive the inner measuring cylinder 2 to rotate, so that the opening of the material-retaining chamber 3 on the inner measuring cylinder 2 turns from being aligned with the cake inlet 14 to being aligned with the cake outlet 15. On the one hand, it is convenient for the feeding and discharging of mooncakes, and on the other hand, it is also convenient for the rotation of the inner measuring cylinder 2, enabling the material-retaining chamber 3 on it to form a sealed space with the inner wall of the detection box 1, providing a basic sealing condition for the water activity detection of mooncakes. Secondly, when the inner measuring cylinder 2 is not in use, it also rotates to form a sealed space with the inner wall of the detection box 1, avoiding the problem of infiltration of external moisture.

[0049] Embodiment 2

[0050] Please refer to Figures 8-10 As shown, the rotating assembly 5 includes: arc plates 501, respectively installed on the inner walls of the middle and lower parts on the left and right sides of the material-retaining chamber 3; rollers 502, there are three of them, rotatably installed at equal intervals between the left and right arc plates 501, and an anti-slip layer 503 is installed on the outer side of the rollers 502; a driving cylinder 504, rotatably installed on the upper side of the middle part of the material-retaining chamber 3, and one end of the driving cylinder 504 is fixedly connected to the output end of the second motor 505, and the second motor 505 is installed on the middle upper part of the inner wall of the left placement chamber 4; guide cylinders 506, there are two groups, respectively rotatably installed at the upper and lower parts of the front end of the material-retaining chamber 3.

[0051] By setting the arc plates 501, rollers 502, anti-slip layer 503, driving cylinder 504, second motor 505 and guide cylinders 506, first, the upper and lower two groups of guide cylinders 506 facilitate the entry of mooncakes. The entered mooncakes then utilize the rollers 502 with three different arc degrees on the arc plates 501, and the anti-slip layer 503 prevents the mooncakes from slipping, effectively supporting and restricting the bottom of the mooncakes. Subsequently, the second motor 505 drives the driving cylinder 504 to rotate, thereby causing the mooncakes in contact with the lower part of the driving cylinder 504 to rotate, ensuring that the detection fan-shaped areas of the mooncakes in contact with the outer fan back plate 6 are continuously changed, and completing the water activity detection of the front, back and side surfaces of the mooncakes.

[0052] Further, please refer toFigure 6 and Figure 10 As shown in Figure 10 , an air isolation film 18 is installed on the inner wall of the material retention chamber 3, and an air isolation film 18 is also installed on the inner wall of the detection box 1. By setting the air isolation film 18, it is possible to prevent external gas from penetrating into the internal space of the inner measuring cylinder 2 through the gap generated during the rotation of the detection box 1 and the inner measuring cylinder 2. The air isolation film 18 not only plays an isolation role but also ensures the sealed environment of the material retention chamber 3 in the inner measuring cylinder 2, which is crucial for maintaining the stability and accuracy of the detection environment.

[0053] Furthermore, please refer to Figure 11 As shown in Figure 11 , a dehumidifier 19 is installed in the front middle part of the top end of the inner measuring cylinder 2, and an outer ventilation cover 20 is arranged outside the dehumidifier 19 and installed at the front part of the top end of the inner measuring cylinder 2. By setting the dehumidifier 19 and the outer ventilation cover 20, it is possible to more effectively maintain the constant temperature and humidity state in the space of the material retention chamber 3 after rotation. The dehumidifier 19 is responsible for reducing and stabilizing the humidity level in the material retention chamber 3 to prevent moisture condensation or water vapor accumulation. The outer ventilation cover 20 is the external housing that protects the dehumidifier 19, ensuring the detection environment in the material retention chamber 3 during the detection process and improving the accuracy and reliability of the detection.

[0054] Please refer to Figure 9 、 Figure 12 and Figure 13 As shown in Figure 9 , Figure 12 and Figure 13 , the marking assembly 12 includes: two profile buried pipes 1201, which are respectively installed at the top and bottom of the outer fan back plate 6, and marking nozzles 1202 are installed on the left and right sides and the middle part of the front of the profile buried pipe 1201; an inner buried connecting pipe 1203, which is buried in the rear part of the right side of the outer fan back plate 6, the inner buried connecting pipe 1203 is located between the top and bottom profile buried pipes 1201, and both ends of the inner buried connecting pipe 1203 are connected to the top and bottom profile buried pipes 1201; a material pump 1204, which is installed on the outer inner wall of the right placement cavity 4; a bottom cone material tank 1205, which is installed on the right side of the top end of the inner measuring cylinder 2, and the bottom cone material tank 1205 is located above the material pump 1204; the feed port of the material pump 1204 is connected to the bottom of the bottom cone material tank 1205 through a pipeline, and the discharge port of the material pump 1204 is connected to the inner buried connecting pipe 1203 through a pipeline.

[0055] By setting the contour buried pipe 1201, the marking nozzle 1202, the internal buried connecting pipe 1203, the material pump 1204 and the bottom cone material tank 1205, first, the water activity detection signals of the front and back sides and the side of the mooncake are fed back by the capacitor 9 and the electromagnetic wave sensor 11. When abnormal detection signals appear on the front and back sides or the side of the mooncake, the signals will be transmitted to the controller of the material pump 1204. The controller starts to activate the material pump 1204 to extract the marking material from the bottom cone material tank 1205. The marking material is sprayed onto the abnormal detection area of the mooncake through the internal buried connecting pipe 1203, the contour buried pipe 1201 and the marking nozzle 1202. Among them, when abnormal detection areas appear on the front and back sides of the mooncake, the marking material is sprayed through the four marking nozzles 1202 at the left and right top and bottom of the outer fan back plate 6 to divide the abnormal detection fan-shaped areas on the front and back sides of the mooncake. When abnormal detection areas appear on the side of the mooncake, the marking material is sprayed through the two marking nozzles 1202 at the top and bottom of the rear of the outer fan back plate 6 (the sprayed material is a dot marking) to divide the abnormal detection arc area on the side of the mooncake. It should be noted that the marking material is a safe and edible material (the marking material is pectin solution, which is a natural polymer compound with good film-forming property and viscosity. It can be used as a marking material and forms a thin film dot on the surface of the mooncake by spraying, which is both eye-catching and not easy to fall off), ensuring both the eye-catching nature of the marking and not causing pollution to the detected mooncake.

[0056] Please refer to Figure 6 、 Figure 7 、 Figure 9 and Figure 10 As shown in, frame slots 21 are respectively opened at the upper and lower parts on the left side of the detection box 1, and docking slots 22 are respectively opened at the upper and lower parts at the rear end of the inner measuring cylinder 2, and the length and width dimensions of the frame slot 21 and the docking slot 22 are the same. By setting the frame slot 21 and the docking slot 22, after the water activity detection of the mooncake is completed, the opening of the material retaining chamber 3 on the inner measuring cylinder 2 turns from being aligned with the cake inlet 14 to being aligned with the cake outlet 15, and the docking slot 22 at the rear of the material retaining chamber 3 will also be aligned with the frame slot 21 on the detection box 1, facilitating the subsequent cross-pushing assembly 13 to push the mooncake.

[0057] Please refer to Figure 4 and Figure 5 As shown in, the cross-pushing assembly 13 includes: an external connection box 1301 installed in the middle of the left side of the detection box 1; through slots 1302 opened at the upper and lower parts of the external connection box 1301, and sealing plates 1303 are installed in the middle of the through slots 1302; electric push rods 1304 installed in the middle of the sealing plates 1303, and cross plates 1305 are fixedly installed at the telescopic ends of the electric push rods 1304; air bags 1306 installed on the inner side of the cross plates 1305.

[0058] By setting up the external box 1301, through slots 1302, sealing plate 1303, electric push rods 1304, cross plates 1305 and air bags 1306, using the two through slots 1302 opened on the external box 1301, the through slots 1302 are aligned with the frame slots 21 on the detection box 1. The electric push rods 1304 on the sealing plate 1303 in the through slots 1302 are extended to drive the connected cross plates 1305 and air bags 1306, successively passing through the frame slots 21 of the detection box 1 and the docking slots 22 of the inner measuring cylinder 2, and entering the rear part of the material retaining chamber 3, so that the air bags 1306 on the cross plates 1305 push the upper and lower parts of the rear of the vertical mooncake, and discharge the mooncake from the opening of the material retaining chamber 3 and the cake discharging port 15.

[0059] Embodiment 3

[0060] Please refer to Figures 1-14 , this embodiment also provides a method for using a water activity testing device for Cantonese mooncakes, including the following steps:

[0061] S1. Mooncake input: The mooncakes are fed into the material retaining chamber 3 of the inner measuring cylinder 2 through the cake inlet 14 of the detection box 1 and stay in the rotating assembly 5. The first motor 17 drives the inner measuring cylinder 2 to rotate, so that the material retaining chamber 3 of the rotated inner measuring cylinder 2 forms a short-term sealed space with the inner wall of the detection box 1. Under the action of the dehumidifier 19 and the air isolation film 18, this space is maintained as a constant temperature and humidity environment to prepare for the subsequent water activity detection;

[0062] S2. Internal rotation: The rotating assembly 5 starts to work, urging the mooncakes staying therein to rotate. During the rotation of the mooncakes, they are divided into multiple fan-shaped areas, and these fan-shaped areas will successively pass through the outer fan back plate 6 for water activity detection;

[0063] S3. Water activity detection: Continuing from step S2, when the mooncakes pass through the outer fan back plate 6, the inner fan electrode plates 7 on the left and right sides perform capacitance water activity detection on the mooncakes, covering the front and back thicknesses of the whole mooncake. At the same time, the electromagnetic wave sensors 11 on the arc fan plates 10 installed on the outer fan back plate 6 perform microwave feedback water activity detection on the sides of the mooncakes, realizing the detection of the shallow water activity on the sides of the mooncakes;

[0064] S4. Abnormality marking: In step S3, if the water activity of the mooncakes in one of the fan-shaped areas is abnormal, the marking assembly 12 will perform an edible marking on this fan-shaped area. This marking is convenient for subsequent traceability to find and handle the faults that cause the abnormal water activity of the mooncakes in the previous steps;

[0065] S5. Mooncake output: The horizontal pushing assembly 13 is elastically pushed, and it extends into the material retaining chamber 3 through the frame slot 21 and the docking slot 22, pushing the upper and lower parts of the rear side of the mooncake, and smoothly discharging the detected mooncakes from the material retaining chamber 3 and the detection box 1.

[0066] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some 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 invention.

Claims

1. A Cantonese-style mooncake water activity testing device, comprising a testing box (1), characterized in that: Also includes: An inner measuring cylinder (2) is rotatably mounted in the middle of the testing box (1); A material retention chamber (3) is provided in the front middle portion of the inner measuring tube (2); The placement chamber (4) is provided on the left and right sides of the inner measuring tube (2), and the two placement chambers (4) are respectively located on the left and right parts of the material retention chamber (3); A rotating assembly (5) is installed at the lower part of the material retention chamber (3) and is used to drive the moon cake to rotate; An outer fan back plate (6) is installed at the rear middle part of the material retention chamber (3); The inner walls of the left and right sides of the outer fan back plate (6) are provided with inner fan plates (7), and the outer sides of the two inner fan plates (7) are respectively connected to the positive and negative pins of a capacitor (9) through leads (8), and the capacitor (9) is installed at the rear side of the top end of the inner measuring tube (2); An arc fan plate (10) is installed on the rear inner wall of the outer fan back plate (6), and an electromagnetic wave sensor (11) is installed on the inner wall of the arc fan plate (10); A marking component (12) is installed in the outer fan back plate (6), and the marking component (12) is buried and distributed along the top and bottom outer contours of the outer fan back plate (6), and the marking component (12) is electrically connected to the capacitor (9) and the electromagnetic wave sensor (11) respectively; The horizontal push assembly (13) is installed on the left side of the testing box (1) and is used to push the tested moon cakes out of the inner testing tube (2) and the testing box (1).

2. The Cantonese-style mooncake water activity testing device as claimed in claim 1, characterized in that: A cake inlet (14) is provided in the middle of the front end of the material retaining chamber (3), and a cake discharge port (15) is provided in the middle of the right end of the material retaining chamber (3).

3. The Cantonese-style mooncake water activity testing device as claimed in claim 1, characterized in that: A chassis (16) is installed at the bottom of the detection box (1), and a motor (17) is installed at the middle of the bottom end of the chassis (16). The output end of the motor (17) passes through the middle of the bottom end of the chassis (16) and is fixedly connected to the bottom end of the inner measuring tube (2).

4. The Cantonese-style mooncake water activity testing device as claimed in claim 1, characterized in that: The rotating assembly (5) comprises: The radian plates (501) are respectively installed on the inner walls of the lower and middle parts of the left and right sides of the material retention chamber (3); There are three rollers (502) which are equidistantly rotatably installed between the left and right camber plates (501), and an anti-skid layer (503) is installed on the outer side of the rollers (502); A driving cylinder (504) is rotatably mounted on the upper middle side of the material retention chamber (3), and one end of the driving cylinder (504) is fixedly connected to the output end of the second motor (505), and the second motor (505) is mounted on the upper middle part of the inner wall of the left placement chamber (4); The guide cylinders (506) are provided in two groups and are rotatably mounted on the upper and lower front ends of the material retention chamber (3).

5. The Cantonese-style mooncake water activity testing device as claimed in claim 1, characterized in that: The inner wall of the material retention chamber (3) is installed with a gas isolation membrane (18), and the inner wall of the detection box (1) is also installed with a gas isolation membrane (18).

6. The Cantonese-style mooncake water activity testing device as claimed in claim 1, characterized in that: A dehumidifier (19) is installed at the front middle of the top end of the inner tube (2), and an outer air permeable cover (20) installed at the front of the top end of the inner tube (2) is arranged outside the dehumidifier (19).

7. The Cantonese-style mooncake water activity testing device as claimed in claim 1, characterized in that: The marking assembly (12) comprises: There are two contour buried pipes (1201), which are respectively installed at the top and bottom of the outer fan back plate (6), and the front left and right sides and the middle of the contour buried pipe (1201) are both installed with marking nozzles (1202); An internally buried connecting pipe (1203) is buried in the right rear portion of the outer fan back plate (6), wherein the internally buried connecting pipe (1203) is located between the top and bottom contour buried pipes (1201), and both ends of the internally buried connecting pipe (1203) are connected to the top and bottom contour buried pipes (1201); A material pump (1204) is installed on the outer inner wall of the right placement chamber (4); The bottom cone material tank (1205) is installed on the right side of the top end of the inner measuring cylinder (2), and the bottom cone material tank (1205) is located above the material pump (1204); The feed port of the material pump (1204) is connected to the bottom of the bottom cone material tank (1205) through a pipeline, and the discharge port of the material pump (1204) is connected to the internally buried connecting pipe (1203) through a pipeline.

8. The Cantonese-style mooncake water activity testing device as claimed in claim 1, characterized in that: The upper and lower parts of the left side of the detection box (1) are both provided with frame grooves (21), and the upper and lower parts of the rear end of the inner measuring tube (2) are both provided with docking grooves (22), and the length and width of the frame groove (21) and the docking groove (22) are consistent.

9. The Cantonese-style mooncake water activity testing device as claimed in claim 1, characterized in that: The transverse thrust assembly (13) comprises: An external connection box (1301) is installed in the middle of the left side of the detection box (1); The through groove (1302) is provided at the upper and lower parts of the external connection box (1301), and a sealing plate (1303) is installed in the middle of the through groove (1302); The electric push rod (1304) is installed in the middle of the sealing plate (1303), and the telescopic ends of the electric push rod (1304) are fixedly installed with a horizontal plate (1305); The air bag (1306) is installed on the inner side of the cross plate (1305).

10. A method for using a Cantonese-style mooncake water activity testing device, characterized in that: The device for testing the water activity of Cantonese-style mooncakes according to any one of claims 1 to 9 comprises the following steps: S1. Mooncake input: Mooncakes are fed into the material retention chamber (3) of the inner measuring cylinder (2) through the cake inlet (14) of the testing box (1) and stay in the rotating assembly (5). The motor 1 (17) drives the inner measuring cylinder (2) to rotate, so that the material retention chamber (3) of the inner measuring cylinder (2) and the inner wall of the testing box (1) form a temporary sealed space. Under the action of the dehumidifier (19) and the air barrier (18), the space is maintained in a constant temperature and humidity environment, preparing for the subsequent water activity test; S2, internal rotation: the rotating assembly (5) starts to work, driving the mooncakes inside to rotate. During the rotation, the mooncakes are divided into a plurality of fan-shaped areas, which are sequentially passed through the outer fan back plate (6) for water activity detection; S3, water activity detection: Continuing from step S2, when the mooncake passes through the outer fan back plate (6), the inner fan plates (7) on the left and right sides perform capacitive water activity detection on the mooncake, covering the entire front and back thickness of the mooncake. At the same time, the electromagnetic wave sensor (11) on the arc fan plate (10) installed on the outer fan back plate (6) performs microwave feedback water activity detection on the side of the mooncake, thereby realizing the detection of shallow water activity on the side of the mooncake; S4, abnormal marking: In step S3, if the water activity of one of the fan-shaped areas of the mooncake is abnormal, the marking component (12) will mark the fan-shaped area as edible, which is convenient for subsequent tracing, finding and handling the fault that caused the abnormal water activity of the mooncake in the previous step; S5, moon cake output: the horizontal push component (13) is pushed elastically, and extends into the material retention chamber (3) through the frame groove (21) and the docking groove (22), pushing the upper and lower parts of the rear side of the moon cake, and smoothly outputs the tested moon cake from the material retention chamber (3) and the testing box (1).

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