A poultry carcass contamination spray device

By combining a targeted spray cleaning mechanism with machine vision technology, precise cleaning of poultry carcass surfaces is achieved, solving the problem of residual contaminants in chicken carcasses, improving cleaning efficiency, and reducing water costs.

CN117502482BActive Publication Date: 2025-11-18WUHAN POLYTECHNIC UNIVERSITY
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Patent Information

Application Number
CN202311766560.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-21
Publication Date
2025-11-18
Estimated Expiration
2043-12-21

AI Technical Summary

Technical Problem

In poultry slaughtering and processing, it is difficult to completely clean contaminants from the surface of chicken carcasses, leading to food safety hazards. Existing repeated cleaning methods increase costs and reduce efficiency.

Method used

The system employs a targeted spray cleaning mechanism that combines machine vision technology to detect the location of contaminants in real time. It then uses a spray module for targeted cleaning, including an automatic spray unit and an auxiliary spray unit. The movement of the spray head is controlled by hydraulic cylinders and motors, and the system is further enhanced by an image acquisition and processing module to achieve precise cleaning.

Benefits of technology

It improved cleaning efficiency, ensured the quality of poultry products, saved water and reduced costs, and solved the problem of pollutant residue.

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Abstract

The present application belongs to the technical field of poultry slaughtering and processing, and provides a poultry carcass pollutant spraying device, which comprises a targeted spraying and cleaning mechanism, and the targeted spraying and cleaning mechanism comprises: a spraying chamber; an image acquisition module, which is arranged in the spraying chamber and is used for acquiring image information of poultry carcass entering the spraying chamber; a processing module, which is used for receiving and processing the image information acquired by the image acquisition module to obtain position information of pollutants of the poultry carcass; and a spraying module, which is used for spraying and cleaning the position of the pollutants of the poultry carcass according to the position information of the pollutants obtained by the processing module. The present application can flush the parts of the poultry carcass which are not easy to clean, improve the quality of poultry products, save water, reduce costs, and improve efficiency.
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Description

Technical Field

[0001] This invention belongs to the field of poultry slaughtering and processing technology, specifically relating to a poultry carcass contaminant spraying device. Background Technology

[0002] As consumers become increasingly concerned about food safety, their demands for the quality of chicken products are also rising. Currently, in the slaughtering and processing of poultry such as chickens, especially in the cleaning process of contaminants on the surface of chicken carcasses, although a rinsing step has been added, factors such as bile, gastric acid, and other tissue fluids partially seeping into the chicken meat layer, and cross-contamination of microorganisms caused by contact between internal organs and mechanical processing equipment, mean that contaminants on the surface of the chicken carcass cannot be completely rinsed off with tap water. This results in some contaminants remaining on the processed chicken carcass, leading to lower quality chicken products and posing significant food safety risks. To address this issue, most companies currently use repeated washing to remove residual surface contaminants; however, this not only significantly increases the cost of production water but also reduces the efficiency of broiler processing. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a poultry carcass contaminant spraying device. This device can specifically rinse areas of the poultry carcass that are difficult to clean, thereby improving the quality of poultry products. Furthermore, it can save water, reduce costs, and increase efficiency.

[0004] The technical solution adopted by this invention to solve its technical problem is: to provide a poultry carcass contaminant spraying device, including a targeted spray cleaning mechanism, wherein the targeted spray cleaning mechanism includes:

[0005] Spray room;

[0006] The image acquisition module, located inside the spray chamber, is used to acquire image information of poultry carcasses entering the spray chamber;

[0007] The processing module is used to receive and process the image information acquired by the image acquisition module to obtain the location information of contaminants in the poultry carcass;

[0008] The spray module is used to spray and clean the contaminants on the poultry carcass based on the location information of the contaminants obtained from the processing module.

[0009] Optionally, the spray module includes an automatic spray unit and an auxiliary spray unit;

[0010] The automatic spraying unit includes a base, a first motor support, a second motor support, a first motor, a second motor, a first connecting rod, a second connecting rod, an auxiliary connecting rod, and a spray head. The base is disposed in the spraying chamber. The first motor support and the second motor support are fixedly installed on the base. The first motor is fixedly installed on the first motor support, and the second motor is fixedly installed on the second motor support. The first motor and the second motor are arranged perpendicularly. One end of the first connecting rod is connected to the first motor, and the other end is connected to the auxiliary connecting rod. The auxiliary connecting rod is connected to the spray head. One end of the second connecting rod is connected to the second motor, and the other end is connected to the spray head. Both the first motor and the second motor are connected to the processing module, and under the control of the processing module, they drive the first connecting rod, the second connecting rod, and the auxiliary rod to rotate, so that the spray head moves to the position where the pollutants are located on the poultry carcass.

[0011] The auxiliary spraying unit includes a base, a spraying moving platform, and three hydraulic cylinders disposed between the base and the spraying moving platform. The base is fixedly installed in the spraying chamber, and the base is fixedly installed on the spraying moving platform. One end of each hydraulic cylinder is hinged to the base, and the other end is hinged to the spraying moving platform. The spraying moving platform is raised and lowered by the joint extension and retraction of the three hydraulic cylinders, and the angle between the spraying moving platform and the base is changed by the asynchronous extension and retraction of the three hydraulic cylinders.

[0012] Optionally, the hydraulic cylinder is connected to the base and the spraying platform via universal hinges.

[0013] Optionally, the size of the spray platform is much smaller than the size of the base. The spray platform is shaped like a triangular pyramid, with one plane used to mount the base and the other three planes connected to the hydraulic cylinders respectively.

[0014] Optionally, the device also includes a frame, on which a loading position and a cleaning position are arranged sequentially from front to back. The targeted spray cleaning mechanism is located at the cleaning position. The loading position is provided with multiple posture adjustment mechanisms. The posture adjustment mechanism includes a guide optical shaft horizontally arranged on the frame, two hooks slidably arranged on the guide optical shaft in the horizontal direction, and a telescopic unit arranged between the two hooks. The distance between the two hooks is changed by the extension and retraction of the telescopic unit.

[0015] Optionally, the telescopic unit includes an active link and two driven links. The active link is rotatably mounted on the guide shaft, and the two driven links are respectively hinged to the two ends of the active link and hinged to the corresponding hooks.

[0016] Optionally, the device further includes a water bath precooling zone, an ultrasonic cleaning zone, and a spray cleaning zone disposed between the posture adjustment mechanism and the targeted spray cleaning mechanism. The water bath precooling zone is used to internally cool the poultry carcass after it has been scalded with boiling water. The ultrasonic cleaning zone is used to perform ultrasonic cleaning on the poultry carcass. The spray cleaning zone is used to perform spray cleaning on the poultry carcass.

[0017] Optionally, the water bath precooling zone includes a cooling cleaning tank and multiple vortex fan blades disposed within the cooling cleaning tank.

[0018] Optionally, the ultrasonic cleaning zone includes an ultrasonic cleaning tank and an ultrasonic generator that emits ultrasonic waves into the ultrasonic cleaning tank.

[0019] Optionally, the device also includes a drying zone located after the targeted spray cleaning mechanism, the drying zone being used to dry poultry carcasses.

[0020] The beneficial effects of this invention are as follows: Based on actual slaughtering conditions, this invention sets up a targeted spray cleaning mechanism for contaminants on the surface of poultry carcasses. Utilizing machine vision technology, it detects the actual cleaning status of each poultry carcass online and identifies carcasses with low visible dirt and the locations of the dirt as targets. Then, a spray module sprays high-efficiency cleaning solutions such as hydrogen peroxide onto the locations of residual contaminants. This allows for a second, highly efficient cleaning of poultry carcasses that did not perform well in the first cleaning, until the carcasses are completely clean. This invention can target hard-to-clean areas for rinsing, improving cleaning efficiency, ensuring the quality of poultry products, and saving water and reducing costs. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0022] Figure 1 This is an overall schematic diagram of the poultry carcass contaminant spraying device in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the targeted spray cleaning mechanism in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the automatic spraying unit in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the auxiliary spraying unit in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the posture adjustment mechanism in an embodiment of the present invention;

[0027] Figure 6This is a partial schematic diagram of the conveying mechanism in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the drying zone in an embodiment of the present invention;

[0029] Figure 8 This is a front view of the water bath precooling zone in an embodiment of the present invention;

[0030] Figure 9 This is a top view of the water bath precooling zone in an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram of the ultrasonic cleaning zone in an embodiment of the present invention;

[0032] Figure 11 This is a schematic diagram of the structure of the spray cleaning zone in an embodiment of the present invention.

[0033] In the diagram: 100 - Posture adjustment mechanism; 101 - Hook; 102 - Active link; 103 - Driven link; 104 - Guide optical axis; 200 - Conveying mechanism; 201 - Conveying motor; 202 - Belt; 203 - Pulley; 300 - Targeted spray cleaning mechanism; 310 - Light source; 320 - Spray chamber; 330 - Automatic spray unit; 331 - First motor; 331' - Second motor; 332 - First motor support; 332' - Second motor support; 333 - Base; 334 - First link; 335 - Auxiliary link; 336 - Spray head; 337 - Second link; 340 - Water tank; 350 - Auxiliary spray unit 351-Spraying platform; 352-Piston rod; 353-Hydraulic cylinder; 354-Base; 355-Universal hinge; 360-Image acquisition module; 400-Water tank; 500-Drying area; 501-Fan; 502-Air outlet; 503-Oven support; 600-Water bath pre-cooling area; 601-Cooling cleaning tank; 602-Support; 603-Water tap switch; 604-Motor; 605-Wave blade; 700-Ultrasonic cleaning area; 701-Ultrasonic cleaning tank; 702-Ultrasonic generator; 703-Controller; 800-Spray cleaning area; 801-Spray tank; 802-Spray motor; 803-Spray head. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0035] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" or "several" means two or more.

[0037] like Figure 1 , Figure 2 As shown, this invention provides a poultry carcass contaminant spraying device, including a targeted spray cleaning mechanism 300. The targeted spray cleaning mechanism includes: a spray chamber 320, generally a box structure; an image acquisition module 360, located within the spray chamber 320, for acquiring image information of the poultry carcass entering the spray chamber; the image acquisition module can be an industrial camera, installed on the top of the spray chamber; a processing module (not shown in the figure), for receiving and processing the image information acquired by the image acquisition module to obtain the location information of contaminants on the poultry carcass; the processing module can be implemented using current neural network models, clustering algorithms, etc. For example, when using a neural network model, sample images of already labeled contaminant location information can be used as training samples to train a contaminant detection model; and a spraying module (including an automatic spraying unit 330 and an auxiliary spraying unit 350), for spraying and cleaning the contaminant locations on the poultry carcass according to the contaminant location information obtained by the processing module. To improve image acquisition quality, the targeted spray cleaning mechanism also includes a light source 310 installed within the spray chamber; the light source can be an LED lamp. To improve spraying efficiency, the targeted spray cleaning mechanism also includes a water tank 340 located at the bottom of the spray chamber for supplying water to the spraying module. To enhance automation, the targeted spray cleaning mechanism is also equipped with a photoelectric sensor, which senses when the poultry carcass reaches the designated position within the spray chamber and sends information to the processing module to activate the targeted spray cleaning mechanism.

[0038] The workflow of this invention is as follows: Poultry carcasses are hung on hooks on the slaughtering line and conveyed to the targeted spray cleaning mechanism. A photoelectric sensor detects when the carcass reaches a designated position, and the targeted spray cleaning mechanism then cleans the surface contaminants from the carcass. The targeted spray cleaning mechanism utilizes machine vision technology to monitor the actual cleaning status of each poultry carcass online and identifies carcasses with low visible dirt and the location of the dirt as targets. By controlling the spray module with an adjustable output angle, high-efficiency cleaning solutions such as hydrogen peroxide are sprayed onto the locations of residual contaminants, providing a second, highly efficient cleaning for carcasses that did not receive satisfactory initial cleaning.

[0039] In one embodiment of the present invention, such as Figures 2-4 As shown, the spray module includes an automatic spray unit 330 and an auxiliary spray unit 350;

[0040] like Figure 3 As shown, the automatic sprinkler unit 330 includes a base 333, a first motor support 332, a second motor support 332', a first motor 331, a second motor 331', a first connecting rod 334, a second connecting rod 337, an auxiliary connecting rod 335, and a sprinkler head 336. The base 333 is disposed inside the sprinkler chamber 320. The first motor support 332 and the second motor support 332' are fixedly mounted on the base 333. The first motor 331 is fixedly mounted on the first motor support 332, and the second motor 331' is fixedly mounted on the second motor support 332. The first motor 331 and the second motor 331' are vertically arranged. One end of the first connecting rod 334 is connected to the first motor 331, and the other end is connected to the auxiliary connecting rod 335. The auxiliary connecting rod 335 is connected to the spray head 336. One end of the second connecting rod 337 is connected to the second motor 331', and the other end is connected to the spray head 336. Both the first motor and the second motor are connected to the processing module, and under the control of the processing module, they drive the first connecting rod, the second connecting rod and the auxiliary rod to rotate, so that the spray head moves to the position of the pollutants on the poultry carcass.

[0041] like Figure 4 As shown, the auxiliary spraying unit 350 includes a base 354, a spraying moving platform 351, and three hydraulic cylinders 353 disposed between the base and the spraying moving platform. The base is fixedly installed in the spraying chamber, and the base is fixedly installed on the spraying moving platform. One end of the hydraulic cylinder is hinged to the base, and the other end (specifically, the piston rod 352) is hinged to the spraying moving platform. The lifting and lowering of the spraying moving platform is achieved by the joint extension and retraction of the three hydraulic cylinders, and the angle between the spraying moving platform and the base is changed by the asynchronous extension and retraction of the three hydraulic cylinders.

[0042] This invention utilizes an image acquisition module to detect the residual contaminants on the surface of poultry carcasses in real time. When the poultry carcasses enter the spray chamber, indoor LED lights provide a good lighting environment for the image acquisition module to better detect the distribution of contaminants. The image acquisition module uses an industrial camera to upload the surface feature information of the poultry carcasses to the processing module, which then feeds it back to the automatic spraying unit, enabling it to perform targeted spray cleaning based on the actual cleaning quality of the poultry carcasses.

[0043] As the primary actuator of the automatic spray unit, its design directly impacts the effectiveness of cleaning contaminants from poultry carcasses. This embodiment utilizes a spatial linkage mechanism controlled by two motors to adjust the spray head's output angle. The two motors, based on signals from the processing module, control the corresponding linkages to rotate, working together to adjust the spray head's output angle in multiple directions. A miniature vision camera further monitors the distribution of contaminants on the carcass surface in real time, enabling point-to-point targeted spraying to clean the contaminants. This invention can flexibly adapt to different locations and types of contaminants, rather than spraying from a single angle. During the spraying process, an industrial camera continues to monitor, automatically adjusting if any areas are missed or require secondary cleaning. Although contaminants such as bile and blood are distributed throughout the poultry carcass, this invention, through targeted spraying, can accurately identify the location of contaminants and perform targeted spraying, significantly reducing water consumption and thus conserving water resources.

[0044] To enable the spray system to achieve more comprehensive visual monitoring of the chicken carcass surface, this application draws inspiration from the renowned Stewart platform and designs a three-axis parallel auxiliary spray unit. The Stewart platform consists of a moving platform, a stationary platform, and six spatial legs. The moving platform is connected to the spatial legs via ball joints, while the stationary platform is connected to the spatial legs via Hooke joints. In the middle of the legs, there can be either a sliding joint based on hydraulic cylinders or a helical joint based on ball screws. The central part is the driving element for each leg, and the positional movement of the moving platform is achieved by controlling the change in the length of the legs. This platform is composed of several parallel kinematic chains, hence the name parallel mechanism. This structure has a series of advantages such as good stability, high load-bearing capacity, high precision, low inertia, and a high stiffness-to-weight ratio, and is widely used in the field of mechanical engineering.

[0045] This application utilizes a variant of the Stewart platform to design a three-axis parallel auxiliary spray unit. This auxiliary spray unit connects its base to the hydraulic cylinder via a universal hinge, and the spray platform is also connected to the hydraulic cylinder via a universal hinge. The automatic spray unit is placed on the spray platform of the auxiliary spray unit. An algorithm controls the extension of the piston rod to achieve multi-position movement of the spray platform, allowing the automatic spray unit to perform comprehensive cleaning of the chicken carcass surface, effectively solving the problem of incomplete cleaning caused by camera blind spots. This invention, based on the Stewart platform, features a three-axis parallel auxiliary spray unit capable of operating in multiple directions and angles, thus solving the problem caused by camera blind spots. Due to the use of hydraulic cylinders, this invention can not only quickly adjust the position of the spray platform but also precisely control the spray angle and direction.

[0046] In one embodiment, such as Figure 4 As shown, the hydraulic cylinder is connected to the base and the spraying platform by universal hinges 355, which can achieve a good rotational connection between the two.

[0047] In one embodiment, such as Figure 4 As shown, the size of the spray platform is much smaller than that of the base. The spray platform is shaped like a triangular pyramid, with one plane used to mount the base and the other three planes connected to the hydraulic cylinders. This allows for flexible adjustment of the spray platform, enabling it to move to the designated position more easily.

[0048] In one embodiment, such as Figure 1 , Figure 5 As shown, the device also includes a frame, on which a loading position and a cleaning position are arranged sequentially from front to back. A targeted spray cleaning mechanism 300 is located at the cleaning position. Multiple posture adjustment mechanisms 100 are provided at the loading position. Each posture adjustment mechanism includes a guide optical shaft 104 horizontally mounted on the frame, two hooks 101 slidably mounted on the guide optical shaft in the horizontal direction, and a telescopic unit located between the two hooks. The distance between the two hooks is changed by extending or retracting the telescopic unit. Specifically, the telescopic unit includes an active connecting rod 102 and two driven connecting rods 103. The active connecting rod is rotatably mounted on the guide optical shaft, and the two driven connecting rods are respectively hinged to both ends of the active connecting rod and hinged to their corresponding hooks.

[0049] Considering that during actual cleaning, the small gap between the hooks causes the skin of the lower body of poultry carcasses to adhere tightly together, the targeted cleaning effect of the spraying equipment on contaminants in this area is not ideal. Therefore, this application sets up multiple posture adjustment mechanisms. The legs of the poultry carcass are manually hung upside down on the hooks. When the hooks are conveyed to the cleaning area along the production line, the servo motor receives a signal from the spraying equipment and applies torque to the active linkage. As the active linkage rotates at a certain angle, the hooks of the poultry carcass can move laterally on the guide optical axis. The distance between the two hooks increases, and the distance between the legs of the poultry's lower body also increases, separating the adhered skin. This allows the visual spraying mechanism to better identify and clean contaminants, improving cleaning quality. Because the distance can be dynamically adjusted, it can also adapt to poultry carcasses of different sizes and shapes, further improving cleaning quality.

[0050] In one embodiment, such as Figure 1 As shown, the device also includes a water bath precooling zone 600, an ultrasonic cleaning zone 700, and a spray cleaning zone 800 disposed between the posture adjustment mechanism and the targeted spray cleaning mechanism. The water bath precooling zone is used to internally cool the poultry carcass after it has been scalded with boiling water. The ultrasonic cleaning zone is used to perform ultrasonic cleaning on the poultry carcass. The spray cleaning zone is used to perform spray cleaning on the poultry carcass.

[0051] Since the poultry carcass still retains some internal heat after being scalded with boiling water, it can be transported to a water bath pre-cooling area to cool down internally. After cooling, the poultry carcass will undergo simple cleaning treatment in an ultrasonic cleaning area and a primary spray cleaning area to remove fecal contaminants and some blood adhering to the skin surface.

[0052] like Figure 8 , Figure 9 As shown, the water bath precooling zone 600 includes a cooling cleaning tank 601 and multiple vortex fan blades 605 disposed within the cooling cleaning tank. The cooling cleaning tank is supported by a bracket 602, and a water tap switch 603 and a motor 604 are provided at the bottom of the cooling cleaning tank. The motor is used to drive the vortex fan blades to rotate, further improving cooling efficiency.

[0053] like Figure 10 As shown, the ultrasonic cleaning zone 700 includes an ultrasonic cleaning tank 701 and an ultrasonic generator 702 that emits ultrasonic waves into the ultrasonic cleaning tank. The ultrasonic generator is connected to a controller 703.

[0054] like Figure 11 As shown, the spray cleaning zone 800 includes a spray tank 801, a spray head 803 disposed in the spray tank 801, and a spray motor 802 connected to the spray head 803.

[0055] In one embodiment, such as Figure 1As shown, the device also includes a drying zone 500 located after the targeted spray cleaning mechanism, the drying zone being used to dry poultry carcasses. Figure 7 As shown, the drying area includes an oven, an oven support 503 supporting the oven, multiple fans 501 on the top of the oven to supply warm air into the oven, and multiple air outlets 502 on the oven.

[0056] like Figure 1 As shown, the poultry carcass contaminant spraying device provided by this invention also includes a water storage tank 400. The spraying mechanism sprays the carcasses through a water pipe connected to the water storage tank. After this process, the poultry carcasses will finally pass through the drying area until they are manually removed and packaged. The entire transmission part in this invention is completed by the conveying mechanism 200, as shown... Figure 6 As shown, the conveying mechanism includes a conveying motor 201, a belt 202, and a pulley 203. The conveying motor drives the belt part for transmission, and a total of eight motors drive two belts for forward transmission.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all fall within the protection scope of the appended claims of the present invention.

Claims

1. A poultry carcass pollutant spraying device, characterized in that, The device includes a targeted spray cleaning mechanism, which comprises: Spray room; The image acquisition module, located inside the spray chamber, is used to acquire image information of poultry carcasses entering the spray chamber; The processing module is used to receive and process the image information acquired by the image acquisition module to obtain the location information of contaminants in the poultry carcass; The spray module is used to spray and clean the contaminants on the poultry carcass based on the location information of the contaminants obtained from the processing module. The spray module includes an automatic spray unit and an auxiliary spray unit; The automatic spraying unit includes a base, a first motor support, a second motor support, a first motor, a second motor, a first connecting rod, a second connecting rod, an auxiliary connecting rod, and a spray head. The base is disposed in the spraying chamber. The first motor support and the second motor support are fixedly installed on the base. The first motor is fixedly installed on the first motor support, and the second motor is fixedly installed on the second motor support. The first motor and the second motor are arranged perpendicularly. One end of the first connecting rod is connected to the first motor, and the other end is connected to the auxiliary connecting rod. The auxiliary connecting rod is connected to the spray head. One end of the second connecting rod is connected to the second motor, and the other end is connected to the spray head. Both the first motor and the second motor are connected to the processing module, and under the control of the processing module, they drive the first connecting rod, the second connecting rod, and the auxiliary rod to rotate, so that the spray head moves to the position where the pollutants are located on the poultry carcass. The auxiliary spraying unit includes a base, a spraying moving platform, and three hydraulic cylinders disposed between the base and the spraying moving platform. The base is fixedly installed in the spraying chamber, and the base is fixedly installed on the spraying moving platform. One end of each hydraulic cylinder is hinged to the base, and the other end is hinged to the spraying moving platform. The spraying moving platform is raised and lowered by the joint extension and retraction of the three hydraulic cylinders, and the angle between the spraying moving platform and the base is changed by the asynchronous extension and retraction of the three hydraulic cylinders.

2. The poultry carcass contaminant spraying device according to claim 1, characterized in that, The hydraulic cylinder is connected to the base and the spraying platform via universal hinges.

3. The poultry carcass contaminant spraying device according to claim 1, characterized in that, The spray platform is shaped like a triangular pyramid, with one plane used to mount the base and the other three planes connected to the hydraulic cylinders respectively.

4. The poultry carcass contaminant spraying device according to claim 1, characterized in that, The device also includes a frame, on which a loading position and a cleaning position are arranged sequentially from front to back. The targeted spray cleaning mechanism is located at the cleaning position. The loading position is provided with multiple posture adjustment mechanisms. Each posture adjustment mechanism includes a guide optical shaft horizontally arranged on the frame, two hooks slidably arranged on the guide optical shaft in the horizontal direction, and a telescopic unit arranged between the two hooks. The distance between the two hooks is changed by extending and retracting the telescopic unit.

5. The poultry carcass contaminant spraying device according to claim 4, characterized in that, The telescopic unit includes an active link and two driven links. The active link is rotatably mounted on the guide optical shaft, and the two driven links are respectively hinged to the two ends of the active link and to the corresponding hooks.

6. The poultry carcass contaminant spraying device according to claim 4, characterized in that, The device also includes a water bath precooling zone, an ultrasonic cleaning zone, and a spray cleaning zone disposed between the posture adjustment mechanism and the targeted spray cleaning mechanism. The water bath precooling zone is used to internally cool the poultry carcass after it has been scalded with boiling water. The ultrasonic cleaning zone is used to perform ultrasonic cleaning on the poultry carcass. The spray cleaning zone is used to perform spray cleaning on the poultry carcass.

7. The poultry carcass contaminant spraying device according to claim 6, characterized in that, The water bath precooling zone includes a cooling and cleaning tank and multiple vortex fan blades disposed within the cooling and cleaning tank.

8. The poultry carcass contaminant spraying device according to claim 6, characterized in that, The ultrasonic cleaning zone includes an ultrasonic cleaning tank and an ultrasonic generator that emits ultrasonic waves into the ultrasonic cleaning tank.

9. The poultry carcass contaminant spraying device according to claim 6, characterized in that, The device also includes a drying zone located after the targeted spray cleaning mechanism, which is used to dry poultry carcasses.

Citation Information

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