Hypoallergenic formula milk powder production monitoring device based on visual monitoring
By using air pressure regulation and airflow exchange components in the production process of hypoallergenic formula milk powder, the problem of dust affecting video detection has been solved, achieving clear, stable, and efficient monitoring of the vision system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, video detection equipment is installed inside sealed containers, and dust entering during the production of hypoallergenic formula milk powder can affect the detection effect on the QR code on the filling barrel.
A visual monitoring device for the production of hypoallergenic formula milk powder is adopted, including an air pressure regulating component and an airflow exchange component. The air pressure regulating component maintains a higher air pressure inside the metal drum than outside to prevent dust from entering, while the airflow exchange component continuously blows on the surface of the transparent glass plate to prevent fogging and ensure the clarity of the visual system.
It effectively blocks dust intrusion, prevents monitoring failure, ensures the continuous cleanliness and stability of the visual pathway, simplifies the structure, reduces energy consumption, and improves system reliability and ease of maintenance.
Smart Images
Figure CN121805237A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of video monitoring technology, and in particular relates to a monitoring device for the production of low-allergenic formula milk powder based on visual monitoring. Background Technology
[0002] The production process of hypoallergenic formula milk powder has extremely strict requirements for cleanliness, consistency of process parameters and control of potential sources of contamination. Its core production process usually includes the precise feeding of formula raw materials, mixing and homogenization, high-temperature hydrolysis, spray drying, cooling and sieving and filling. During this process, it is necessary to detect the QR code sprayed on the filling barrel to prevent the phenomenon of selling the filling barrel without the QR code. In existing technologies, video detection equipment is used to detect the QR code on the sealed container. However, the detection equipment is installed inside the sealed container. During the production of hypoallergenic formula milk powder, a lot of dust is present. At this time, the dust enters the inside of the sealed container, thus affecting the video detection equipment's ability to detect the QR code on the filling container. Summary of the Invention
[0003] This invention addresses the problem in existing technologies that use video detection equipment to detect QR codes on sealed containers. However, this equipment is installed inside the container, and since hypoallergenic formula milk powder contains a significant amount of dust during its production, this dust can enter the sealed container and interfere with the video detection equipment's ability to detect the QR codes on the filling containers. The invention proposes the following technical solution: A visual monitoring device for monitoring the production of hypoallergenic formula milk powder includes: a mounting frame, a metal drum mounted on the mounting frame, an end cap mounted on the bottom of the metal drum, a transparent glass plate mounted inside the end cap, and a camera device installed inside the metal drum. The low-allergenic formula milk powder production monitoring device also includes a pressure regulating component and an airflow exchange component; The air pressure regulating component is installed on the top of the inner wall of the metal barrel, and the airflow exchange component is installed between the air pressure regulating component and the metal barrel.
[0004] As a preferred embodiment of the above technical solution, the air pressure regulating component includes a driving component fixedly installed on the top of the inner wall of the metal barrel, a pressing component one installed at the bottom of the driving component, a pressure valve embedded inside the pressing component one, a one-way valve installed inside the pressing component one near the outer side of the pressure valve, and a pressing component two fixedly installed at the top of the pressing component one.
[0005] As a preferred embodiment of the above technical solution, the second pressing component and the first pressing component are coaxially arranged, and sealing rings are snapped onto the outer surface of the second pressing component and the inner wall of the first pressing component.
[0006] As a preferred embodiment of the above technical solution, the airflow exchange component includes a guide member fixedly installed on the top of the inner wall of the metal barrel. A drive gear is movably connected to the outside of the guide member. A driven gear is meshed with the outside of the drive gear. The driven gear is rotatably connected to a bottom end of the pressing component. A spiral blade is fixedly installed at the bottom end of the driven gear.
[0007] As a preferred embodiment of the above technical solution, a conical cover is fixedly installed at the bottom end of the pressing component, a guide groove is opened inside the pressing component, and a plurality of guide pipes are connected to the air outlet end of the guide groove at the bottom end of the pressing component, and a sleeve is fitted on the outside of the guide pipe.
[0008] As a preferred embodiment of the above technical solution, the bottom diameter of the conical cover is larger than the top diameter, the inner diameter of the sleeve is equal to the outer diameter of the guide tube, and a sealing sleeve is provided on the outside of the guide tube.
[0009] As a preferred embodiment of the above technical solution, a positioning plate is fitted onto the bottom of the outer surface of the sleeve, a baffle plate is installed on the outside of the positioning plate by screws, and a filter is installed between the baffle plate and the positioning plate at the air outlet end of the sleeve.
[0010] As a preferred embodiment of the above technical solution, an air outlet plate is fixedly installed inside the barrier plate, the top end of the air outlet plate and the bottom end of the positioning plate are fitted together, and a sealing gasket is provided at the connection.
[0011] As a preferred embodiment of the above technical solution, a fixed frame is fixedly installed inside the metal barrel, and the shooting device is located inside the fixed frame.
[0012] As a preferred embodiment of the above technical solution, the number of metal barrels is set to three, and each of the three metal barrels has a mounting block fixedly installed on its back, and the mounting block is slidably connected to the outside of the mounting frame.
[0013] The beneficial effects of this invention are as follows: (1) Through the continuous operation of the air pressure regulating component, a stable micro-positive pressure environment is dynamically maintained in the monitoring chamber, which effectively blocks the intrusion of external high dust air from the source. At the same time, the directional circulating airflow generated by the linkage continuously blows the inner surface of the observation window (transparent glass plate) to prevent any trace dust that may pass through the sealing gap from depositing. The two work together to build a continuously clean and stable optical working environment for the internal vision system, fundamentally solving the industry problem of monitoring failure caused by dust adhesion. (2) Creatively transforming the "waste heat" generated during the operation of the shooting equipment into a useful resource, the higher temperature gas gathered above the equipment is actively guided through an airflow exchange component, filtered, and precisely blown onto the inner surface of the observation window. This is equivalent to providing a continuous, gentle, and energy-free heating source for the low-temperature glass area that is prone to fogging, significantly increasing its surface temperature and keeping it above the air dew point, thereby fundamentally and actively preventing condensation and fogging caused by temperature differences, and ensuring clear vision throughout the day; (3) The core reciprocating motion of the air pressure regulating component directly drives the airflow exchange component (such as the spiral blade) through the gear transmission mechanism. This integrated linkage design eliminates the need for a separate motor or air pump for airflow circulation, simplifies the structure, reduces energy consumption, reduces failure points, and improves the mechanical reliability and maintenance convenience of the entire system. Attached Figure Description
[0014] Figure 1 The diagram shown is a schematic diagram of a visual monitoring device for monitoring the production of hypoallergenic formula milk powder according to Example 1. Figure 2 The image shown is a cross-sectional view of a visual monitoring device for monitoring the production of hypoallergenic formula milk powder, as described in Example 1. Figure 3 The diagram shown is a structural schematic of the air pressure regulating component in Embodiment 1; Figure 4 The diagram shown is a structural schematic of the airflow exchange component in Embodiment 1; Figure 5 The diagram shown is a cross-sectional view of the airflow exchange assembly in Embodiment 1; Figure 6 The example shown is from embodiment 1. Figure 5 A schematic diagram of the structure of region A in the middle.
[0015] In the diagram: 1. Mounting frame; 2. Metal barrel; 3. End cap; 4. Transparent glass plate; 5. Filming equipment; 6. Air pressure regulating assembly; 61. Drive component; 62. Pressing component one; 63. Pressure valve; 64. Check valve; 65. Pressing component two; 7. Airflow exchange assembly; 71. Guide component; 72. Drive gear; 73. Driven gear; 74. Spiral blade; 75. Conical cover; 76. Guide channel; 77. Guide pipe; 78. Sleeve; 79. Positioning plate; 710. Barrier plate; 711. Filter element; 712. Air outlet plate; 8. Fixing frame. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0017] Example 1 This invention provides a visual monitoring device for the production monitoring of hypoallergenic formula milk powder, such as... Figures 1 to 6 As shown, it includes: a mounting frame 1, a metal bucket 2 mounted on the mounting frame 1, an end cap 3 mounted on the bottom of the metal bucket 2, a transparent glass plate 4 mounted inside the end cap 3, and a shooting device 5 disposed inside the metal bucket 2. The low-allergenic formula milk powder production monitoring device also includes a pressure regulating component 6 and an airflow exchange component 7; The air pressure regulating component 6 is installed on the top of the inner wall of the metal barrel 2, and the airflow exchange component 7 is installed between the air pressure regulating component 6 and the metal barrel 2.
[0018] In existing technologies, video detection equipment is used for detection. However, the detection equipment is installed inside the sealed container. During the production of hypoallergenic formula milk powder, a lot of dust is contained. At this time, the dust enters the sealed container, thus affecting the video detection equipment's ability to detect the QR code on the filling barrel.
[0019] In this application, the air pressure regulating component 6 is used to maintain the internal air pressure of the metal barrel 2 higher than that of the outside air pressure, which effectively blocks the entry of external dust and ensures that the internal environment of the metal barrel 2 is clean. While the air pressure regulating component 6 is operating, the airflow exchange component 7 causes the air above the imaging device 5 to flow downwards, forming an internal air circulation. This circulating airflow continuously blows across the surface of the transparent glass plate 4, preventing fogging due to temperature or humidity changes, thereby maintaining a clear visual path and ensuring that the imaging device 5 can perform stable and accurate monitoring. In use, connect the metal bucket 2 and the mounting bracket 1, then install the shooting device 5 and the metal bucket 2, and then install the end cap 3 so that the transparent glass plate 4 in the end cap 3 corresponds to it. Then, start the air pressure regulating component 6. When the air pressure regulating component 6 is running, it compresses the gas between the metal bucket 2 and the end cap 3, making the pressure between the end cap 3 and the metal bucket 2 greater than the pressure on the outside. At the same time, it drives the airflow exchange component 7 to run. When the airflow exchange component 7 is running, it drives the air pressure above the shooting device 5 and the gas below to exchange. Then, start the shooting device 5, which will shoot and detect the flowing object.
[0020] Specifically, the mounting frame 1 contains three metal barrels 2. Each of the three metal barrels 2 has a mounting block fixedly mounted on its back. The mounting blocks are slidably connected to the outside of the mounting frame 1. A screw is threaded into the mounting block, with one end of the screw fitting against the mounting frame 1 to compress and fix the metal barrel 2. A fixing frame 8 is fixedly mounted inside the metal barrel 2. A camera 5 (specifically an industrial vision inspection head) is snapped into the middle of the fixing frame 8. An end cap 3 is screwed onto the bottom of the metal barrel 2, and the end cap 3 is coaxial with the metal barrel 2. A transparent glass plate 4 is snapped into the middle of the end cap 3. A pressure regulating component 6 is fixedly mounted on the top of the inner wall of the metal barrel 2. An airflow exchange component 7 is installed between the pressure regulating component 6 and the metal barrel 2.
[0021] To achieve the gas compression and thus increase the internal pressure in the above embodiments, the following solution is provided: Figure 2 and Figure 3 As shown, the air pressure regulating assembly 6 includes a driving component 61 fixedly installed on the top of the inner wall of the metal barrel 2. A pressing component 62 is installed at the bottom of the driving component 61. A pressure valve 63 is embedded inside the pressing component 62. A one-way valve 64 is installed inside the pressing component 62 at a position outside the pressure valve 63. A pressing component 65 is fixedly installed at the top of the pressing component 62. The pressing component 65 and the pressing component 62 are coaxially arranged. Sealing rings are snapped onto the inner walls of both the pressing component 65 and the pressing component 62.
[0022] When in use, the drive unit 61 is connected to the power supply and starts running. When the drive unit 61 runs, it drives the pressing part 62 to move downward. At this time, the pressure between the bottom end of the pressing part 62 and the top of the inner wall of the end cap 3 increases. When the internal pressure exceeds the preset threshold of the pressure valve 63, the pressure valve 63 will automatically open and release gas. At this time, the released gas enters the space between the top of the pressing part 62 and the inner wall of the metal barrel 2 along the pressure valve 63, thereby restoring the pressure between the bottom end of the pressing part 62 and the top of the inner wall of the end cap 3 to the set range, thus ensuring the stability and safety of the internal positive pressure environment. During the above operation, the one-way valve 64 is in the closed state. During reset, the one-way valve 64 opens, allowing the gas between the top of the pressing component 62 and the inner wall of the metal barrel 2 to re-enter between the bottom of the pressing component 62 and the top of the inner wall of the end cap 3. This prevents negative pressure from being generated between the bottom of the pressing component 62 and the top of the inner wall of the end cap 3, which would attract dust from the outside and allow it to enter the interior of the metal barrel 2.
[0023] Specifically, a drive component 61 (which is an electric telescopic rod) is installed on the top of the inner wall of the metal barrel 2 by screws. The output shaft of the drive component 61 is snapped onto a pressing component 62 (which is a disc) that fits against the inner wall of the metal barrel 2. A pressure valve 63 is embedded inside the pressing component 62. A one-way valve 64 is installed inside the pressing component 62 near the outer side of the pressure valve 63. A second pressing component 65 (which is concave in shape) is welded onto the top of the pressing component 62. The second pressing component 65 and the first pressing component 62 are coaxially arranged. Sealing rings are snapped onto the outer surface of the second pressing component 65 and the inner wall of the first pressing component 62. Holes are opened in the middle of both the second pressing component 65 and the first pressing component 62. The hole of the second pressing component 65 is smaller than the hole of the first pressing component 62.
[0024] To achieve the goal of guiding the gas at the top of the imaging device 5 in the above embodiments, the following solution is provided: Figures 3 to 6 As shown, the airflow exchange assembly 7 includes a guide member 71 fixedly installed on the top of the inner wall of the metal barrel 2. A drive gear 72 is movably connected to the outside of the guide member 71. A driven gear 73 is meshed with the outside of the drive gear 72, and the driven gear 73 is rotatably connected to the bottom end of the pressing component 62. A spiral blade 74 is fixedly installed at the bottom end of the driven gear 73. A conical cover 75 is fixedly installed at the bottom end of the pressing component 62. A guide groove 76 is opened inside the pressing component 62. Several guide pipes 77 are connected to the air outlet end of the guide groove 76 at the bottom end of the pressing component 62. A sleeve 78 is fitted on the outside. The bottom diameter of the conical cover 75 is larger than the top diameter. The inner diameter of the sleeve 78 is equal to the outer diameter of the guide tube 77. A sealing sleeve is fitted on the outside of the guide tube 77. A positioning plate 79 is fitted on the bottom of the outer surface of the sleeve 78. A baffle plate 710 is installed on the outside of the positioning plate 79 by screws. A filter element 711 is installed between the baffle plate 710 and the positioning plate 79 at the air outlet end of the sleeve 78. An air outlet plate 712 is fixedly installed inside the baffle plate 710. The top end of the air outlet plate 712 and the bottom end of the positioning plate 79 fit together, and a sealing gasket is provided at the connection.
[0025] In use, pressing parts 62 and 65 move along the outside of the guide 71, which drives the drive gear 72 to move downward. The threaded arrangement causes the drive gear 72 to rotate. When the drive gear 72 rotates, it drives the driven gear 73 to rotate. When the driven gear 73 rotates, it drives the spiral blades 74 to rotate. When the multiple spiral blades 74 rotate, they guide the gas along the conical cover 75 into the guide groove 76, and then along the guide groove 76 into the guide pipe 77. Then, along the guide pipe 77, the gas enters the sleeve 78 and the filter element 711. The gas is filtered by the filter element 711. The filtered gas enters the outlet plate 712 between the positioning plate 79 and the barrier plate 710, and is blown along the outlet plate 712 to the top of the inner wall of the transparent glass plate 4, thereby cleaning the top of the inner wall of the transparent glass plate 4.
[0026] Specifically, a guide 71 (specifically a cylinder with threads on its bottom outer surface) is fixedly installed at the top center of the inner wall of the metal barrel 2. The guide 71 is coaxially arranged with the metal barrel 2. A drive gear 72 is threadedly connected to the bottom outer surface of the guide 71, and the drive gear 72 is rotatably connected to the pressing part 62 (the pressing part 62 has a circular groove inside, and a circular ring is rotatably connected inside the groove, which is fixedly connected to the drive gear 72). Four driven gears 73 are meshed on the outer surface of the drive gear 72, and the driven gears 73 are rotatably connected to the pressing part 62 (the top of the driven gear 73 is fixedly installed on the circular ring, and a circular groove is opened inside the pressing part 62 corresponding to the top of the circular ring, which is rotatably connected to the circular groove). A spiral blade 74 is snapped onto the bottom of the driven gear 73, and a conical cover 75 is fixedly installed at the bottom of the pressing part 62 between the outer sides of the multiple spiral blades 74. The conical cover 75 is conical in shape, with the diameter of the top end smaller than that of the bottom end. A guide groove 76 is provided inside the pressing component 62. Multiple guide tubes 77 are embedded at the bottom end of the pressing component 62. The guide tubes 77 are connected to the air outlet of the guide groove 76. A sleeve 78 is fitted around the outside of the guide tubes 77, with the inner diameter of the sleeve 78 equal to the outer diameter of the guide tubes 77. A sealing sleeve is fitted around the outside of the guide tubes 77 to increase the sealing between them. A positioning plate 79 is fitted at the bottom of the outer surface of the sleeve 78. A barrier plate 710 is installed on the outside of the positioning plate 79 by screws. A filter element 711 (specifically, filter cotton) is installed between the barrier plate 710 and the positioning plate 79 at the air outlet of the sleeve 78. An air outlet plate 712 is fixedly installed inside the barrier plate 710. The top end of the air outlet plate 712 and the bottom end of the positioning plate 79 are in contact with each other, and a sealing gasket is provided at the connection to increase the sealing between them.
[0027] Working principle: Slide the mounting block on the back of the metal bucket 2 into the corresponding track of the mounting frame 1, tighten the screw inside the mounting block so that its end presses against the mounting frame 1, thereby firmly fixing the metal bucket (2) on the mounting frame 1. Then, snap the shooting device 5 (industrial vision inspection head) into the middle of the fixing frame 8 inside the metal bucket 2. Next, install the end cap 3 at the bottom of the metal bucket 2 with screws to ensure that the transparent glass plate 4 in the middle of the end cap 3 is coaxially aligned with the optical path of the shooting device 5. When the air pressure regulating component 6 is activated, the drive component 61 (electric telescopic rod) is powered on and runs, driving the connecting pressing component 1 62 (disc) and pressing component 2 65 to move downward along the guide component 71. This movement compresses the gas in the sealed space between the bottom end of pressing component 1 62 and the top end of the inner wall of the end cover 3, causing the air pressure in this area to rise rapidly and forming a positive pressure state inside the metal barrel 2 that is higher than the external environment, effectively blocking the intrusion of external dust. During the pressurization process of the pressing component descending, if the air pressure in the compressed area exceeds the preset threshold of the pressure valve 63, the pressure valve 63 will automatically open to release some gas into the space between the top of the pressing component 62 and the inner wall of the metal barrel 2, so that the working pressure is restored to a safe range and the system is stable. At this time, the one-way valve 64 is in the closed state. When the driving component 61 drives the pressing component 62 to move upward and reset, the volume of the compressed area increases and the air pressure decreases. At this time, the one-way valve 64 opens, allowing the gas in the upper space to flow back and replenish, preventing the formation of negative pressure in the area and the reverse intake of external pollutants. During the reciprocating motion of the pressing part 62, it drives the drive gear 72 to rotate through the threaded engagement with the guide part 71. The drive gear 72 then drives the multiple driven gears 73 meshing with it and the spiral blades 74 fixed at its lower end to rotate synchronously. The rotation of the spiral blades 74 generates suction force, which draws the gas above the imaging device 5 through the conical cover 75 and guides it into the guide groove 76 inside the pressing part 62. The gas then enters the filter chamber composed of the filter element 711 (filter cotton) for purification through the guide pipe 77 and the sleeve 78. The purified clean gas passes through the channel between the positioning plate 79 and the barrier plate 710 and is finally blown evenly and continuously onto the inner surface of the transparent glass plate 4 through the air outlet plate 712. Under the stable internal positive pressure environment and continuous airflow cleanliness, the camera 5 is activated. The camera 5 captures and identifies the printed code (such as QR code) on the bottom of the filling barrel moving on the production line below through the clean and fog-free transparent glass plate 4, thus completing the online monitoring task. When the imaging device 5 is running, the air pressure regulating component 6 operates synchronously (this method periodically adjusts the pressure), which in turn drives the airflow exchange component 7. This component actively extracts the high-temperature air generated by the imaging device 5 and accumulates above it. After filtration, it guides and continuously blows the air onto the inner surface of the transparent glass plate 4. This design achieves a dual function: on the one hand, the airflow keeps the observation window clean; on the other hand, it uses the heat emitted by the device itself to gently heat the low-temperature glass surface that is prone to fogging, effectively raising its temperature and thus significantly preventing condensation and fogging caused by temperature differences, ensuring the long-lasting clarity and stability of the visual path under various environmental conditions. The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.
Claims
1. A visual monitoring device for monitoring the production of low-allergenic formula milk powder, characterized in that, include: Mounting frame (1), metal bucket (2) mounted on mounting frame (1), end cap (3) mounted on the bottom of metal bucket (2), transparent glass plate (4) mounted inside end cap (3), and shooting equipment (5) set inside metal bucket (2). The low-allergenic formula milk powder production monitoring device also includes a pressure regulating component (6) and an airflow exchange component (7). The air pressure regulating component (6) is installed on the top of the inner wall of the metal barrel (2), and the airflow exchange component (7) is installed between the air pressure regulating component (6) and the metal barrel (2).
2. The low-allergenic formula milk powder production monitoring device based on visual monitoring according to claim 1, characterized in that, The air pressure regulating component (6) includes a drive component (61) fixedly installed on the top of the inner wall of the metal barrel (2). A first pressing component (62) is installed at the bottom of the drive component (61). A pressure valve (63) is embedded inside the first pressing component (62). A one-way valve (64) is installed inside the first pressing component (62) near the outside of the pressure valve (63). A second pressing component (65) is fixedly installed at the top of the first pressing component (62).
3. The low-allergenic formula milk powder production monitoring device based on visual monitoring according to claim 2, characterized in that, The second pressing component (65) and the first pressing component (62) are coaxially arranged, and sealing rings are snapped onto the outer surface of the second pressing component (65) and the inner wall of the first pressing component (62).
4. The low-allergenic formula milk powder production monitoring device based on visual monitoring according to claim 2, characterized in that, The airflow exchange assembly (7) includes a guide (71) fixedly installed on the top of the inner wall of the metal barrel (2). A drive gear (72) is movably connected to the outside of the guide (71). A driven gear (73) is meshed with the outside of the drive gear (72). The driven gear (73) is rotatably connected to the bottom of the pressing part (62). A spiral blade (74) is fixedly installed at the bottom of the driven gear (73).
5. A visual monitoring device for monitoring the production of low-allergenic formula milk powder according to claim 4, characterized in that, A conical cover (75) is fixedly installed at the bottom of the first pressing part (62). A guide groove (76) is opened inside the first pressing part (62). The bottom of the first pressing part (62) is connected to the air outlet of the guide groove (76) by several guide pipes (77). A sleeve (78) is sleeved on the outside of the guide pipe (77).
6. The low-allergenic formula milk powder production monitoring device based on visual monitoring according to claim 5, characterized in that, The bottom diameter of the conical cover (75) is greater than the top diameter, the inner diameter of the sleeve (78) is equal to the outer diameter of the guide tube (77), and a sealing sleeve is provided on the outside of the guide tube (77).
7. A visual monitoring device for monitoring the production of low-allergenic formula milk powder according to claim 5, characterized in that, A positioning plate (79) is fitted on the bottom of the outer surface of the sleeve (78). A baffle plate (710) is installed on the outside of the positioning plate (79) by screws. A filter element (711) is installed between the baffle plate (710) and the positioning plate (79) at the air outlet end of the sleeve (78).
8. A visual monitoring device for monitoring the production of low-allergenic formula milk powder according to claim 7, characterized in that, An air vent plate (712) is fixedly installed inside the barrier plate (710). The top end of the air vent plate (712) and the bottom end of the positioning plate (79) are fitted together, and a sealing gasket is provided at the connection.
9. A visual monitoring device for monitoring the production of low-allergenic formula milk powder according to claim 1, characterized in that, The metal barrel (2) is fixedly installed with a frame (8), and the shooting device (5) is set inside the frame (8).
10. A visual monitoring device for monitoring the production of low-allergenic formula milk powder according to claim 1, characterized in that, The number of metal barrels (2) is set to three. Each of the three metal barrels (2) has a mounting block fixedly installed on its back. The mounting block is slidably connected to the outside of the mounting frame (1).