Coloring section production device for roast chicken processing

Abstract

The invention discloses a coloring section production device for roast chicken processing, relates to the field of food processing, and aims to solve the problem that in a traditional existing roast chicken coloring process, spraying liquid is difficult to form a continuous and stable liquid film on the surface of a roast chicken, so that the coloring uniformity is influenced. A hanging bracket is arranged between the protection plates, a supporting hanging rail is matched with the hanging bracket, an adjusting air nozzle, a spraying frame and a heat preservation box are sequentially arranged in the coloring box in the moving direction of the hanging bracket, contact switches are fixedly connected to the protection plates, mechanical reset assemblies are matched with the side edges of the contact switches, and a shifting rod matched with the mechanical reset assemblies is fixedly connected to the hanging bracket. The mechanical reset assembly is matched with a spraying frame, the spraying frame synchronously moves along with the hanging bracket, flow guide grooves are formed in the portions, on the two sides of the heat preservation box, in the coloring box, and the flow guide grooves are communicated with the heat preservation box, and the device has the advantages that the coloring uniformity is improved, resource waste is reduced, the maintenance cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of food processing technology, and in particular to a coloring process production device for roast chicken processing. Background Technology

[0002] As a traditional cooked food product, the golden color of roast chicken is a core indicator of its quality, directly influencing consumers' purchasing decisions. In industrialized production processes, the coloring process plays a crucial role in enhancing the product's appearance. Traditional methods rely on manual operation, using hand-applied caramel coloring or maltose syrup for coloring, which is inefficient and inconsistent. With the increasing automation of food processing, modern roast chicken manufacturers generally adopt assembly line operations, using spraying devices to atomize the coloring liquid and evenly spray it onto the surface of the roast chicken for continuous batch processing. This process requires the coloring liquid to form a stable and continuous liquid film on the roast chicken skin and maintain sufficient penetration time to ensure that the coloring liquid is fully absorbed, thus maintaining a stable and uniform golden color during subsequent frying or baking. If the spraying process is interrupted or uneven, it will directly lead to a mottled and inconsistent color in the finished product, seriously affecting the product's appearance and market competitiveness.

[0003] The current industry standard of fixed spray pipe layout has fundamental flaws. The spray pipes are rigidly installed in fixed positions along the conveyor belt, while the roast chicken moves continuously along supporting rails via suspension brackets. This design creates unavoidable relative movement between the spray pipes and the roast chicken, resulting in each nozzle only spraying momentarily when the chicken briefly passes beneath it. The spray liquid cannot maintain continuous coverage on the chicken's surface, and the liquid film is prone to rupture or uneven distribution, causing localized areas of insufficient or excessive coloring. To compensate for the short spray time at single points, the system is forced to extend the spray interval length and densely add multiple sets of spray pipes, further increasing equipment complexity. The surge in the number of spray pipes not only drives up the procurement and installation costs of pipes, nozzles, and valves but also significantly increases the risk of system failure. Spray nozzles are susceptible to clogging due to water impurities or sugar crystallization, leading to frequent leaks at pipe connections and valve malfunctions, resulting in shortened maintenance cycles, extended downtime, and severe disruption to production continuity. Meanwhile, because the spray pipes are stationary, a large amount of coloring liquid is lost onto the conveyor chain, the ground, or the recycling tank, failing to effectively adhere to the roasted chicken, resulting in raw material waste and increased wastewater treatment burden. Furthermore, to address size differences between batches of roasted chicken or the need to adjust process parameters, operators must individually adjust the valve opening of each spray pipe group or change the nozzle specifications. This process is cumbersome and difficult to control precisely, resulting in a severe lack of system adaptability. These technical defects collectively restrict the efficiency, quality stability, and resource utilization of the roasted chicken coloring process. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a coloring section production device for roast chicken processing. This design effectively solves the problem that in the traditional roast chicken coloring process, the fixed spray pipe layout causes relative movement between the spray pipe and the roast chicken, making it difficult for the spray liquid to form a continuous and stable liquid film on the surface of the roast chicken, thus affecting the coloring uniformity. In addition, the increase in the number of spray pipes directly leads to increased equipment costs and more failure points, reducing the reliability and maintenance efficiency of the production system.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a coloring box, on which two sets of symmetrically distributed protective plates are fixedly connected. A hanger is provided between the two sets of protective plates, and a supporting rail is fitted on the hanger. An adjusting nozzle, a spray frame, and a heat preservation box are sequentially arranged inside the coloring box along the moving direction of the hanger. The adjusting nozzle is rotatably connected to the protective plate. A contact switch is fixedly connected to the protective plate, and a mechanical reset assembly is fitted on the side of the contact switch. A lever that cooperates with the mechanical reset assembly is fixedly connected to the hanger. The mechanical reset assembly is located above the spray frame, and the spray frame moves synchronously with the hanger. The supporting rail above the heat preservation box has a concave structure. Guide grooves are provided inside the coloring boxes on both sides of the heat preservation box, and the guide grooves are connected to the heat preservation box.

[0006] Preferably, the mechanical reset assembly includes a reset slider, which is fixedly connected to the spray frame. The protective plate is provided with a guide groove for the reset slider to slide. A damping block is provided on one side of the reset slider, and a reset spring is provided on the other side of the reset slider. The reset slider is slidably connected to a connecting slider, and a connecting pin is fixedly connected to the connecting slider. A limit block is fixedly connected to the protective plate, and both the connecting slider and the limit block have inclined surfaces on their sides.

[0007] Preferably, the protective plate is provided with a guide plate, the guide plate is fixedly connected to the limiting block, the lever is located between the guide plate and the protective plate, and the ends of the guide plate and the protective plate are provided with V-shaped inlets.

[0008] Preferably, the spray frame includes a first liquid outlet pipe, on which multiple sets of vertically arranged nozzles are provided. A support block is fixedly connected to the first liquid outlet pipe, and an inlet pipe is fixedly connected to the support block. The inlet pipe communicates with the first liquid outlet pipe through the support block. A first sliding groove is provided on the protective plate for the support block to slide. The support block is fixedly connected to the reset slider.

[0009] Preferably, a guide rod is fixedly connected inside the guide groove, the guide rod passes through the reset slider and is slidably connected to the reset slider, and the reset spring is sleeved on the guide rod.

[0010] Preferably, the connecting slider and the limiting block are longitudinally offset, the reset slider is provided with a second sliding groove for the connecting slider to slide, a sliding rod is fixedly connected to the connecting slider, the sliding rod is slidably connected to the reset slider, a limiting piece is fixedly connected to the sliding rod outside the reset slider, and a first spring is sleeved on the sliding rod inside the reset slider.

[0011] Preferably, the spray frame further includes a hanging plate, which is fixedly connected to the protective plate. The hanging plate is provided with a folding linkage assembly. One end of the folding linkage assembly is hinged to the hanging plate, and the other end of the folding linkage assembly is hinged to the first liquid outlet pipe. The hanging plate is provided with a third sliding groove for the first liquid outlet pipe to slide. The middle and end of the folding linkage assembly are both hinged to a second liquid outlet pipe, and a connecting pipe connects the second liquid outlet pipe and the first liquid outlet pipe.

[0012] Preferably, an air guide pipe is fixedly connected to the coloring box, and a first air outlet pipe is rotatably connected to the air guide pipe. The first air outlet pipe is connected to the air nozzle, and a support base is rotatably connected to the first air outlet pipe. The support base is fixedly connected to the protective plate, and a first connecting rod is fixedly connected to the first air outlet pipe. A second connecting rod is hinged to the first connecting rod, and a cam disk is hinged to the second connecting rod. The cam disk is rotatably connected to the protective plate.

[0013] Preferably, the air guide pipe is connected to a second air outlet pipe, the second air outlet pipe is connected to a guide block, the guide block is a triangular prism structure, the air outlet of the guide block is located below it, and the guide block is fixedly connected to the coloring box.

[0014] Preferably, a filter hole is provided between the coloring box and the insulation box. A first guide roller and a second guide roller are rotatably connected inside the insulation box. A connecting gear is fixedly connected to the first guide roller. A drive gear meshes below the connecting gear. A first pulley group is coaxially fixedly connected to the drive gear. A second pulley group is fixedly connected to the output end of the first pulley group. The output end of the second pulley group is fixedly connected to the second guide roller.

[0015] Compared with the prior art, the outstanding advantages of this invention are: This application utilizes the coordinated technical features of a coloring box, protective plate, hanger, support rail, regulating nozzle, spray rack, insulated box, contact switch, mechanical reset assembly, lever, and flow guide channel to form a complete roast chicken coloring production process. The synchronous movement of the hanger and spray rack is key to achieving efficient and uniform spraying, while the contact switch and mechanical reset assembly ensure the precision of automated control. The insulated box and flow guide channel optimize the coloring effect and enable resource recovery.

[0016] This application achieves relative synchronous movement between the spraying device and the roasted chicken by setting a spraying frame that moves synchronously with the hanging frame. This allows the coloring liquid to be sprayed onto the surface of the roasted chicken continuously and evenly for a long time, effectively solving the problems of low spraying efficiency and uneven coloring in the prior art. The synchronous movement of the spraying frame ensures sufficient adhesion and penetration of the coloring liquid, significantly improving the consistency of the coloring effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the cross-sectional axial structure of the color box of the present invention.

[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of the color box of the present invention.

[0020] Figure 4 This is a schematic diagram of the adjustable nozzle connection structure of the present invention.

[0021] Figure 5 This is a schematic diagram of the first connecting rod connection structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the connection structure of the protective plate of the present invention.

[0023] Figure 7 This is a schematic diagram of the axial structure of the mechanical reset assembly of the present invention.

[0024] Figure 8 This is a schematic diagram of the left-side structure of the protective plate of the present invention.

[0025] Figure 9 This is a schematic cross-sectional view of the reset slider of the box according to the present invention.

[0026] Figure 10 This is a schematic diagram of the structure of the spray frame and the hanging plate of the present invention.

[0027] Figure 11 This is a schematic diagram of the spray frame connection structure of the present invention.

[0028] Figure 12 This is a schematic diagram of the internal structure of the insulated box of the present invention.

[0029] Figure 13 This is a schematic diagram of the flow guide block connection structure of the present invention.

[0030] The diagram labels are as follows: 1. Coloring box; 2. Protective plate; 3. Hanger; 4. Support rail; 5. Adjustable air nozzle; 6. Sprayer frame; 601. First outlet pipe; 602. Nozzle; 603. Support block; 604. Inlet pipe; 605. Hanging plate; 606. Folding linkage assembly; 607. Third slide; 608. Second outlet pipe; 609. Connecting pipe; 7. Insulation box; 8. Contact switch; 9. Mechanical reset assembly; 901. Reset slider; 902. Guide groove; 903. Damping block; 904. Reset spring; 905. Connecting slider; 906. Connecting pin; 907. Limiting block; 908. Guide rod; 909. Second slide groove; 910. Slide rod; 911. Limiting piece; 912. First spring; 10. Toggle lever; 11. Flow guide groove; 12. Guide plate; 13. First slide groove; 14. Air guide pipe; 15. First air outlet pipe; 16. First connecting rod; 17. Second connecting rod; 18. Cam plate; 19. Second air outlet pipe; 20. Flow guide block; 21. Filter hole; 22. First flow guide roller; 23. Second flow guide roller; 24. Connecting gear; 25. Drive gear; 26. First pulley set; 27. Second pulley set. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] Please see the appendix Figure 1-13 This embodiment discloses a coloring section production device for roast chicken processing: it includes a coloring box 1, on which two sets of symmetrically distributed protective plates 2 are fixedly connected. A hanger 3 is provided between the two sets of protective plates 2, and a supporting rail 4 is fitted on the hanger 3. Along the moving direction of the hanger 3, an adjusting nozzle 5, a spray frame 6, and a heat preservation box 7 are arranged sequentially inside the coloring box 1. The adjusting nozzle 5 is rotatably connected to the protective plate 2. A contact switch 8 is fixedly connected to the protective plate 2, and a mechanical reset component 9 is fitted on the side of the contact switch 8. A lever 10 that cooperates with the mechanical reset component 9 is fixedly connected to the hanger 3. The mechanical reset component 9 is located above the spray frame 6, and the spray frame 6 moves synchronously with the hanger 3. The supporting rail 4 above the heat preservation box 7 has a concave structure. A guide groove 11 is provided in the coloring box 1 on both sides of the heat preservation box 7, and the guide groove 11 is connected to the heat preservation box 7.

[0033] For ease of understanding, the following explains some key terms in this embodiment: Coloring tank 1 is the main chamber used to hold the roast chicken to be colored and to spray it with coloring liquid. Coloring tank 1 is usually made of corrosion-resistant material, and its internal space is designed to optimize the distribution and recovery of coloring liquid.

[0034] The protective plate 2 is a structure installed above the coloring box 1. Its main function is to protect the internal mechanisms from the influence of the external environment and to provide mounting support for other components. The protective plates 2 are usually installed in pairs to form a working channel.

[0035] The hanger 3 is a support structure used to carry and guide the roast chicken within the coloring box 1. This hanger 3 is typically connected to a conveyor system to ensure the roast chicken can pass through different processing stations along a pre-set path.

[0036] The support rail 4 is a track structure used in conjunction with the hanger 3 to guide the smooth movement of the hanger 3. The design of the support rail 4 ensures that the roast chicken maintains a stable posture and position during the coloring process.

[0037] The regulating nozzle 5 is a device used to inject gas into the coloring box 1 to assist in the drying of the roasted chicken surface. The regulating nozzle 5 allows for adjustment of the airflow direction and intensity to adapt to different process requirements.

[0038] The spray rack 6 is a device for spraying coloring liquid, and it is typically equipped with multiple nozzles 602. The spray rack 6 is designed to achieve uniform spraying of the roast chicken surface, ensuring a consistent coloring effect.

[0039] The warming box 7 is an area set inside the coloring box 1 for the constant temperature preservation of the coloring liquid. It is connected to the liquid inlet pipe 604 through a pump body. In addition, the warming box 7 can keep the temperature inside the coloring box 1 at a specific temperature, which helps to maintain the temperature of the roasted chicken surface and optimize the coloring effect.

[0040] The contact switch 8 is a sensing device used to detect the position or state of a specific component and trigger a corresponding control action. This contact switch 8 is typically used in conjunction with a mechanical reset assembly 9 to achieve automated control.

[0041] The mechanical reset assembly 9 is a mechanical device used to restore other components to their initial or preset positions under specific conditions. This mechanical reset assembly 9 achieves precise reset operations through mechanical linkage.

[0042] The lever 10 is a rod-shaped component fixedly connected to the hanger 3, used to make mechanical contact with the mechanical reset assembly 9 during the movement of the hanger 3, thereby triggering the reset action.

[0043] The guide channel 11 is a channel located inside the coloring tank 1, used to collect and guide the coloring liquid. The design of the guide channel 11 facilitates the recovery and recycling of the coloring liquid, reducing waste.

[0044] The main technical features of this embodiment will be described in more detail below: This embodiment provides a coloring process production apparatus for roast chicken processing, the core of which includes a coloring box 1. The coloring box 1 can be a rectangular semi-enclosed cavity, its internal space designed to accommodate the roast chicken to be colored and provide a controlled environment for the coloring process. For example, the coloring box 1 can be made of stainless steel to ensure its corrosion resistance and ease of cleaning.

[0045] Two sets of symmetrically distributed protective plates 2 are fixedly connected to the coloring box 1. These two sets of protective plates 2 can be vertically installed on the top of the coloring box 1 to form a semi-open channel. For example, the protective plate 2 can adopt an L-shaped plate structure and be fixed to the coloring box 1 by welding or bolting. Its main function is to provide support and guidance for the internal mechanism.

[0046] Between the two sets of protective plates 2, there is a hanger 3. The hanger 3 has hooks at the bottom, through which the roast chicken is hung and supported.

[0047] The hanger 3 is fitted with a supporting rail 4. The supporting rail 4 can be a hoisting track used to support and guide the movement of the hanger 3. For example, the supporting rail 4 can be made of I-shaped channel steel, and the hanger 3 slides on the supporting rail 4 via rollers to ensure smooth movement.

[0048] Along the moving direction of the hanger 3, the coloring box 1 is sequentially equipped with an regulating nozzle 5, a spray rack 6, and a heat preservation box 7. This means that in the coloring process of roast chicken, the roast chicken will first pass through the area of ​​the regulating nozzle 5, then enter the area of ​​the spray rack 6 for coloring liquid spraying, and finally enter the area of ​​the heat preservation box 7 for immersion and temperature control treatment. For example, these components can be fixed to the inner wall of the coloring box 1 by brackets according to a preset process sequence, forming a continuous production line.

[0049] The adjusting nozzle 5 is rotatably connected to the protective plate 2. This means that the adjusting nozzle 5 can reciprocate around the axis connected to the protective plate 2, thereby adjusting the direction of the airflow. For example, the adjusting nozzle 5 can be connected to the protective plate 2 via a pivot and its angle can be adjusted by a simple manual knob or a motor-driven mechanism.

[0050] A contact switch 8 is fixedly connected to the protective plate 2. The contact switch 8 can be a mechanical limit switch that emits an electrical signal when an object touches its contacts. For example, the contact switch 8 can be installed on the inside of the protective plate 2, with its contacts extending into the movement path of the hanger 3, to detect when the hanger 3 reaches a specific position.

[0051] The contact switch 8 is fitted with a mechanical reset assembly 9 on its side. This mechanical reset assembly 9 can be a simple spring-loaded mechanism that pushes the relevant components back to their initial position when the external force is released. For example, the mechanical reset assembly 9 can include a reset rod and a reset spring 904; when the contact switch 8 is triggered, the reset rod is reset under the action of the spring.

[0052] A lever 10 that mates with the mechanical reset assembly 9 is fixedly connected to the hanger 3. The lever 10 can be a short rod extending from the side of the hanger 3. For example, the lever 10 can be welded or bolted to the side wall of the hanger 3, and its position and length are precisely designed so that it can accurately contact and trigger the mechanical reset assembly 9 when the hanger 3 is moved to a specific position.

[0053] The mechanical reset assembly 9 is located above the spray rack 6, which moves synchronously with the hanger 3. This means that the spray rack 6 is not fixed, but moves together with the hanger 3 within the coloring box 1. For example, when the hanger 3 moves on the support rail 4, the spray rack 6 also moves, thereby achieving dynamic spraying of the roast chicken.

[0054] The support rail 4 above the insulated box 7 has a concave structure. This means that the cross-sectional shape of the support rail 4 is concave in the area of ​​the insulated box 7. For example, this concave structure can be a U-shaped groove or an arc-shaped groove, and its design purpose may be to better guide the hanger 3 to move downward, reduce the lifting height of the roast chicken, and allow the roast chicken to be submerged in the inner cavity of the insulated box 7.

[0055] The coloring tanks 1 on both sides of the insulated box 7 are equipped with guide channels 11, which are connected to the insulated box 7. This means that channels for collecting liquid are provided on the inner walls of the coloring tanks 1 on both sides of the insulated box 7, and these channels are connected to the interior of the insulated box 7. For example, the guide channel 11 can be an inclined trough that guides the liquid dripping from both sides of the insulated box 7 back into the insulated box 7, completing the recycling of the dripping sugar liquid and avoiding waste.

[0056] The following example will provide a more detailed explanation of the above technical solution: Suppose a coloring section in a roast chicken processing plant requires continuous coloring of a batch of roast chickens. Traditional fixed spraying methods suffer from uneven spraying, low efficiency, and significant waste. This embodiment introduces a coloring section production device to solve these problems.

[0057] First, the roast chickens to be colored are placed on a conveyor and transported to the entrance of the coloring box 1. The coloring box 1 is a semi-enclosed cavity with a strictly controlled internal environment. Once the roast chickens enter the coloring box 1, they are carried by a hanger 3. This hanger 3 moves between two sets of symmetrically distributed protective plates 2 and is smoothly guided by supporting rails 4.

[0058] The roast chicken first enters the area of ​​the regulating nozzle 5. At this time, the regulating nozzle 5 can reciprocate to spray gas, such as preheating air and removing moisture from the surface of the roast chicken, preparing it for subsequent spraying. The rotating connection between the regulating nozzle 5 and the protective plate 2 allows operators or automated systems to adjust the airflow direction according to the size of the roast chicken or the viscosity of the coloring liquid to optimize the pretreatment effect.

[0059] Subsequently, the hanging rack 3 moves the roast chicken to the area of ​​the spray rack 6. Because the spray rack 6 moves synchronously with the hanging rack 3, it can remain relatively stationary or move slowly relative to the roast chicken, thus achieving long-term, continuous, and uniform spraying of the chicken's surface. For example, as the roast chicken moves under the spray rack 6, the spray rack 6 continuously atomizes the coloring liquid, ensuring that the coloring liquid fully adheres to and penetrates every surface of the roast chicken. This synchronously moving spraying method significantly improves the utilization rate of the coloring liquid and the uniformity of coloring.

[0060] During the spraying process, the contact switch 8 fixedly connected to the protective plate 2 functions. When the hanger 3 moves to the preset position, the lever 10 fixedly connected to the hanger 3 contacts the mechanical reset component 9, causing the mechanical reset component 9 to disengage from the contact switch 8, triggering the corresponding electrical signal of the contact switch 8. The trigger signal of the contact switch 8 can be used to control the start and stop of the spraying liquid. For example, when the roast chicken just reaches the position of the spray rack 6, the lever 10 drives the mechanical reset component 9 and disengages it from the contact switch 8. After the contact switch 8 sends an electrical signal, the spray rack 6 begins spraying. Then, as the hanger 3 moves the roast chicken, the mechanical reset component 9 moves the spray rack 6 along with the roast chicken. Finally, when a spraying cycle is completed and the chicken is ready to enter the next station, the mechanical reset component 9 automatically resets due to the movement distance limitation. After the contact switch 8 contacts the mechanical reset component 9, the spraying action is disconnected, and the spray rack 6 or related components also reset to the initial position, preparing for the spraying of the next batch of roast chicken.

[0061] After spraying, the roast chicken is transported by the rack 3 to the warming box 7. The supporting rail 4 above the warming box 7 has a concave structure, which lowers the horizontal height between the rack 3 and the roast chicken, immersing the lower part of the chicken in the coloring liquid in the warming box 7, thus ensuring thorough coloring. Simultaneously, inside the warming box 7, the coloring liquid on the surface of the chicken further penetrates and fixes at a suitable temperature, ensuring stable and long-lasting color in the final product.

[0062] Inside the coloring tanks 1 on both sides of the insulated box 7, there are guide channels 11, and these guide channels 11 are connected to the insulated box 7. These guide channels 11 are used to collect excess coloring liquid during the coloring process. For example, any liquid dripping from the surface of the roast chicken will be collected by the guide channels 11 and guided to the recycling system for processing or reuse through the communication structure with the insulated box 7, thereby reducing the waste of coloring liquid and reducing the environmental impact.

[0063] The above example demonstrates that the various technical features—coloring box 1, protective plate 2, hanger 3, supporting rail 4, adjusting nozzle 5, spray rack 6, insulation box 7, contact switch 8, mechanical reset assembly 9, lever 10, and guide channel 11—work together to form a complete roast chicken coloring production process. The synchronous movement of hanger 3 and spray rack 6 is crucial for achieving efficient and uniform spraying, while contact switch 8 and mechanical reset assembly 9 ensure the precision of automated control. Insulation box 7 and guide channel 11 optimize the coloring effect and achieve resource recovery.

[0064] Based on the above examples, the technical concept of this embodiment demonstrates a significant technical contribution.

[0065] Compared to existing technologies that use fixed spray pipes, this embodiment achieves relative synchronous movement between the spraying device and the roasted chicken by setting a spray frame 6 that moves synchronously with the hanger 3. This improvement allows the coloring liquid to be sprayed onto the surface of the roasted chicken continuously and evenly for a long time, effectively solving the problems of low spraying efficiency and uneven coloring in existing technologies. In existing technologies, the roasted chicken passes through the fixed spraying area quickly, making it difficult for the spraying liquid to form a stable liquid film. However, this embodiment ensures sufficient adhesion and penetration of the coloring liquid through the synchronous movement of the spray frame 6, significantly improving the consistency of the coloring effect.

[0066] Furthermore, the solution in this embodiment reduces the need for a large number of fixed spray pipes. In the prior art, to extend the spraying time, multiple sets of spray pipes need to be densely arranged, resulting in high equipment costs and increased risk of failure. This embodiment can achieve long-term spraying with one or a few movable spray frames 6, thereby reducing equipment manufacturing costs and maintenance workload, and reducing potential points of failure.

[0067] This embodiment optimizes the recycling and utilization of coloring liquid through the design of the recessed support rail 4 above the insulation box 7 and the guide channels 11 on both sides of the insulation box 7 that communicate with it. In the prior art, spray liquid is wasted in large quantities, and the recycling system is under heavy load. The guide channels 11 in this embodiment can effectively collect excess coloring liquid and guide it to the recycling system, thereby reducing the waste of coloring liquid, lowering raw material costs, and alleviating the pressure on wastewater treatment, demonstrating higher environmental benefits.

[0068] The reset slider 901 is the core component of the mechanical reset assembly 9. It typically has a block-like structure, and its main function is to slide linearly under external force and support other components to achieve the reset action. Its material can be wear-resistant, low-friction engineering plastics or metals, such as polyoxymethylene or stainless steel. The spray frame 6 is a device for spraying the coloring liquid, and it typically has multiple nozzles 602. In this application, the spray frame 6 is fixedly connected to the reset slider 901, meaning that the movement and positioning of the spray frame 6 are directly controlled by the reset slider 901. The structure of the spray frame 6 can be a frame or tubular structure to adapt to the spatial layout and spraying requirements within the coloring box 1. The protective plate 2 is a fixed structure on the coloring box 1, used to support and guide other components. In this application, the protective plate 2 has a guide groove 902 for the reset slider 901 to slide on, and a limit block 907 is fixedly connected, providing support and constraint for the movement of the reset slider 901 and the connecting slider 905. The protective plate 2 is typically made of corrosion-resistant metal or high-strength plastic. The guide groove 902 is a groove structure provided on the protective plate 2. Its function is to provide a precise sliding path for the reset slider 901, ensuring that the reset slider 901 moves smoothly in the predetermined direction and preventing it from deviating or jamming. The cross-sectional shape of the guide groove 902 can be rectangular, dovetail, or U-shaped to adapt to different sliding accuracy and load-bearing requirements. The damping block 903 is a component used to absorb impact energy and slow down the movement speed. It is usually made of elastic material or material with a high coefficient of friction, such as rubber, polyurethane, or Teflon. The damping block 903 is designed to enable the reset slider 901 to decelerate smoothly during movement, especially when approaching the end of its stroke, avoiding hard impacts, thereby protecting the mechanism and extending its service life. The reset spring 904 is an energy storage element. Its main function is to return to its initial state through its own elastic deformation after the external force is released, thereby driving or assisting the reset slider 901 to return to the preset position. The reset spring 904 can be a compression spring, and its stiffness should be selected according to the required reset force and stroke. The connecting slider 905 is a component slidably connected to the reset slider 901, serving as an intermediate transmission component between the reset slider 901 and the connecting pin 906. The connecting slider 905 typically has a certain sliding stroke to achieve engagement with the limiting block 907. Its material can be similar to that of the reset slider 901, using a wear-resistant material. The connecting pin 906 is a protruding component fixedly connected to the connecting slider 905, its main function being to contact or link with external mechanisms, transmitting motion or signals. The connecting pin 906 can be cylindrical. The limiting block 907 is a structure fixedly connected to the protective plate 2, used to limit the range of motion of the connecting slider 905, ensuring it stops at a preset position or changes direction. The shape and position of the limiting block 907 should be designed to match the connecting pin 906 on the connecting slider 905 to achieve precise positioning and linkage. The inclined surface is an inclined surface provided on the sides of the connecting slider 905 and the limiting block 907.These ramps are designed to achieve smooth contact and separation, or to produce specific mechanical effects during movement, such as guiding, wedging, or unlocking. The angle and length of the ramps affect their effectiveness and are typically optimized based on specific needs.

[0069] This application optimizes the positioning and resetting process of the spray rack 6 in the coloring section of the roast chicken processing equipment by introducing a precision mechanical reset assembly 9. When the hanger 3 moves, the lever 10 fixedly connected to it interacts with the mechanical reset assembly 9, which is fixedly connected to the side of the contact switch 8 on the protective plate 2. Specifically, the reset slider 901 in the mechanical reset assembly 9 is fixedly connected to the spray rack 6, so that the movement of the spray rack 6 is synchronized with the movement of the reset slider 901. The protective plate 2 is provided with a guide groove 902, which provides a stable sliding path for the reset slider 901 and ensures the accuracy of its movement. The damping block 903 on one side of the reset slider 901 provides buffering and reduces impact during movement, while the reset spring 904 on the other side provides a reset force at the appropriate time, pushing the reset slider 901 and the spray rack 6 back to the preset position. In addition, the reset slider 901 is connected to the connecting slider 905 through a sliding connection, and the connecting pin 906 fixedly connected to the connecting slider 905 can be linked with an external mechanism. The limiting block 907 fixedly connected to the protective plate 2 cooperates with the inclined surface on the side of the connecting slider 905 and the inclined surface on the connecting slider 905. During the reset process, these inclined surfaces can guide the connecting slider 905 to smoothly contact or separate from the limiting block 907, achieving precise limiting and positioning. This synergistic effect ensures that the movement and reset process of the spray rack 6 within the coloring box 1 is more stable, precise, and reliable, effectively avoiding uneven coloring or equipment damage caused by mechanical impact or inaccurate positioning.

[0070] The following is an illustration using a specific example. In the coloring section of the roast chicken processing equipment, when the roast chicken moves to the spraying area via the hanger 3, the lever 10 on the hanger 3 will touch the mechanical reset assembly 9 on the protective plate 2. At this time, there is interference between the connecting slider 905 in the mechanical reset assembly 9 and the lever 10. The lever 10 drives the connecting slider 905 to tend to move along the direction of the support guide rail, thereby causing the connecting slider 905 to drive the reset slider 901 to slide within the pre-set rectangular guide groove 902 on the protective plate 2. The inner wall of the guide groove 902 is precision machined to reduce friction. When the reset slider 901 moves to the end of its stroke, the connecting pin 906 on the connecting slider 905 contacts the inclined surface of the limit block 907. Under the action of the horizontal forward and backward component force of the inclined surface, the connecting pin 906 drives the connecting slider 905 backward. After the connecting slider 905 moves backward, the connecting slider 905 disengages from the lever 10. On the other side of the reset slider 901, there is a stainless steel compression spring as a reset spring 904. One end of the spring is fixed to the protective plate 2, and the other end abuts against the reset slider 901. When the lever 10 is disengaged from the connecting slider 905, the reset spring 904 provides a reset force to the reset slider 901, so that the reset slider 901 moves in the opposite direction along the guide groove 902 to reset. The damping block 903 between the contact switch 8 and the reset slider 901 can absorb the impulse of the reset slider 901, so that the reset slider 901 makes smooth contact with the contact switch 8.

[0071] The guide plate 12 is a planar or curved surface structure with a guiding function. Its main function is to provide a preset path for moving parts or limit their range of motion, ensuring the accuracy and stability of the movement. The guide plate 12 can be a metal plate, plastic plate, or composite material plate, fixed by welding, bolting, or integral molding. For example, it can be made of high-strength wear-resistant material to withstand long-term friction and impact; or it can be designed with a surface with a specific tilt angle to guide the parts to transition smoothly. The lever 10 is a rod-shaped structure used to actuate, push, or trigger other mechanical parts. In this application, it serves as an actuating component on the hanger 3, used to make physical contact with the mechanical reset assembly 9, thereby triggering or resetting the spray frame 6. To ensure precise engagement with the mechanical reset assembly 9, the lever 10 needs to be accurately guided to a predetermined position. It can be made of a metal rod, plastic rod, or composite material rod, and its shape and size can be designed as needed. For example, it can have a cylindrical, square, or irregular cross-section, and its end can be designed as an arc, cone, or flat surface to facilitate contact with the target part. A V-shaped inlet refers to an opening with a "V"-shaped cross-section formed between two adjacent structures (such as the ends of guide plate 12 and protective plate 2). This type of inlet has a converging and guiding function, effectively guiding the incoming component (such as lever 10) from a wider range to a more precise predetermined position. This inlet can be achieved by cutting, milling, or molding the ends of guide plate 12 and protective plate 2. For example, a symmetrical bevel design can be used to gradually reduce the width of the V-shaped opening, thereby achieving precise insertion of lever 10; alternatively, the inner wall of the V-shaped inlet can be polished to reduce frictional resistance and ensure smooth entry of lever 10.

[0072] The solution of this application forms a channel between the protective plate 2 and the guide plate 12 for guiding the lever 10 by setting a guide plate 12 on the protective plate 2 and fixing the guide plate 12 to the limiting block 907. When the hanger 3 moves the lever 10, the lever 10 is confined within this channel to ensure the stability of its movement trajectory. Furthermore, a V-shaped inlet is provided at the ends of the guide plate 12 and the protective plate 2. This inlet can effectively and accurately guide the lever 10 from a relatively wide area to the predetermined mating position when the lever 10 approaches the mechanical reset assembly 9. The convergence effect of the V-shaped inlet allows the lever 10 to be forcibly centered and accurately aligned with the limiting block 907 even with slight lateral deviation, thereby ensuring reliable contact and triggering of the lever 10 with the mechanical reset assembly 9 (including the reset slider 901, the connecting slider 905, and the limiting block 907). This guiding mechanism significantly improves the accuracy and stability of the cooperation between the lever 10 and the mechanical reset assembly 9, ensuring the precise reset or triggering operation of the spray frame 6 in the coloring section.

[0073] This application further proposes that the spray frame 6 includes a first liquid outlet pipe 601, a plurality of vertically arranged nozzles 602 are provided on the first liquid outlet pipe 601, a support block 603 is fixedly connected to the first liquid outlet pipe 601, an inlet pipe 604 is fixedly connected to the support block 603, the inlet pipe 604 is connected to the first liquid outlet pipe 601 through the support block 603, and a first sliding groove 13 is provided on the protective plate 2 for the support block 603 to slide, and the support block 603 is fixedly connected to the reset slider 901.

[0074] Specifically, the spray frame 6 is the core component for carrying and distributing the coloring liquid, its function being to evenly spray the coloring liquid onto the surface of the roasted chicken to be processed. The spray frame 6 can be a frame structure made of corrosion-resistant materials (such as stainless steel or food-grade engineering plastics) with integrated internal fluid channels to ensure smooth delivery of the coloring liquid. Alternatively, the spray frame 6 can be designed as a modular combination of pipes and nozzles 602 for easy maintenance and replacement. The first outlet pipe 601 is the main pipe inside the spray frame 6 for delivering the coloring liquid, its function being to distribute the coloring liquid from the inlet pipe 604 to the various nozzles 602. The first outlet pipe 601 can be a straight pipe, a curved pipe, or a branch manifold, typically made of stainless steel to accommodate the chemical properties and temperature of the coloring liquid. In another implementation, the first outlet pipe 601 can consist of a flexible hose and multiple small distribution pipe sections. Multiple sets of vertically arranged nozzles 602 are key components for achieving coloring liquid atomization and directional spraying; their vertical arrangement is designed to ensure that the coloring liquid covers the entire height range of the roasted chicken. The type of nozzle 602 can be selected according to the required spraying pattern and coverage area, such as a fan-shaped nozzle 602. They can be designed with a quick-release structure for easy cleaning or a fixed structure for enhanced stability. The support block 603 provides structural support for the first outlet pipe 601 and connects it to other components of the spray frame 6. The support block 603 can be a solid block, bracket, or clamp, typically made of robust engineering plastic or metal to ensure the stability and precise alignment of the spray frame 6. Alternatively, the support block 603 can consist of a series of dispersed support elements. The inlet pipe 604 connects the external coloring liquid supply system to the spray frame 6, ensuring a continuous and stable supply of coloring liquid. The inlet pipe 604 can be a flexible hose made of a material compatible with the coloring liquid. Another implementation is a quick-connect system for easy connection and disassembly. The inlet pipe 604 communicates with the first outlet pipe 601 via the support block 603, providing not only a fluid path for the coloring liquid but also structural integration. The support block 603 acts as an interface, allowing the coloring liquid to flow from the inlet pipe 604 into the first outlet pipe 601, while also providing mechanical support. This connection can be achieved through threaded joints, welding, or a sealed press-fit mechanism. The protective plate 2 has a first groove 13 for the support block 603 to slide, providing a guided path for the support block 603 (and the spray frame 6), ensuring smooth and controlled movement of the spray frame 6. The first groove 13 can be a T-slot machined into the protective plate 2. The support block 603 is fixedly connected to the reset slider 901, establishing a direct mechanical connection between the support structure of the spray frame 6 and the mechanical reset assembly 9. This fixed connection ensures synchronous movement of the spray frame 6 and the reset slider 901, allowing the mechanical reset assembly 9 to precisely control the position and movement of the spray frame 6.

[0075] The solution of this application achieves effective spraying of the coloring liquid and stable movement of the spray frame 6 by tightly integrating the internal structure of the spray frame 6 with the mechanical reset assembly 9. Multiple vertically arranged nozzles 602 are provided on the first outlet pipe 601 inside the spray frame 6, ensuring that the coloring liquid can evenly and comprehensively cover the roasted chicken to be processed. The inlet pipe 604 delivers the coloring liquid to the first outlet pipe 601 through the support block 603, ensuring continuous spraying. The support block 603 not only provides necessary structural support for the first outlet pipe 601, but more importantly, it serves as a connecting bridge between the spray frame 6 and the mechanical reset assembly 9. The support block 603 is fixedly connected to the reset slider 901, allowing the entire spray frame 6 assembly to be precisely driven by the mechanical reset assembly 9. Simultaneously, the first groove 13 provided on the protective plate 2 provides a precise guide path for the support block 603, ensuring that the spray frame 6 maintains stable and accurate linear movement during movement. This integrated design allows the spray frame 6 to move stably along a preset path under the control of the mechanical reset component 9, maintaining its relative position with the product at all times, thus achieving precise spraying of the coloring liquid. This structural configuration effectively solves the problem of shaking or inaccurate positioning that may occur during the movement of the spray frame 6, ensuring the stability and uniformity of the coloring process.

[0076] The following is a specific example: the spray frame 6 can be welded from food-grade 304 stainless steel tubing. The first outlet pipe 601 can be a main horizontal manifold with a diameter of 25mm, from which multiple vertical branch pipes with a diameter of 10mm branch downwards. Each vertical branch pipe is equipped with three fan-shaped nozzles 602, made of polypropylene, to ensure the atomization effect and coverage of the coloring liquid. The support block 603 can be an L-shaped bracket made of bent and welded stainless steel sheet, with one end welded to the first outlet pipe 601. The inlet pipe 604 can be a food-grade silicone hose with a quick connector, connected to the support block 603 via a threaded connector. The support block 603 has a pre-reserved flow channel inside, connecting the inlet pipe 604 to the first outlet pipe 601. A rectangular first groove 13 with a width of 15mm and a depth of 10mm can be milled into the protective plate 2, and an ultra-high molecular weight polyethylene (UHMW-PE) guide rail is lined inside the groove to reduce friction and ensure smooth sliding of the support block 603. The support block 603 is fixedly connected to the side of the reset slider 901 by M6 stainless steel bolts to ensure that there is no relative movement between the two.

[0077] The guide rod 908 is a rod-shaped structure used to guide and support moving parts. The guide rod 908 can be a cylindrical or square solid or hollow rod, with one or both ends fixedly connected to the inner wall of the guide groove 902. The fixed connection can be achieved through welding, bolting, riveting, or integral molding. The function of the guide rod 908 is to provide a precise movement trajectory for the reset slider 901, preventing it from deflecting or getting stuck within the guide groove 902. A sliding connection refers to a connection method that allows relative sliding movement between two components. The reset slider 901 may have a through hole or groove matching the shape of the guide rod 908, through which the guide rod 908 passes, allowing the reset slider 901 to slide freely along the direction of the guide rod 908. The inner wall of the through hole or groove can be surface-treated to reduce friction, such as polishing, coating with a low-friction material, or installing a bushing. This ensures that the reset slider 901 moves smoothly under the guidance of the guide rod 908, maintaining the straightness of its movement. Sleeving refers to an installation method in which one component surrounds or covers the outside of another component. The return spring 904 is typically a helical compression spring with an inner diameter slightly larger than the outer diameter of the guide rod 908, allowing it to be easily sleeved onto the guide rod 908. The two ends of the spring can abut against the end face of the return slider 901 and the inner wall of the guide groove 902 or a fixed stop. This arrangement uses the guide rod 908 to constrain and position the return spring 904, preventing the spring from bending, deflecting, or falling off during compression or release, thereby ensuring the stable transmission of spring force and the reliability of the mechanical return assembly 9.

[0078] The solution of this application involves fixing a guide rod 908 within a guide groove 902, with the guide rod 908 passing through and slidably connected to the reset slider 901. A reset spring 904 is sleeved on the guide rod 908. When the lever 10 pushes the reset slider 901, the reset slider 901 slides within the guide groove 902 of the protective plate 2, compressing the reset spring 904. During this process, the guide rod 908 provides precise linear guidance to the reset slider 901, ensuring its smooth movement along a predetermined path. Simultaneously, because the reset spring 904 is sleeved and constrained by the guide rod 908, its axis remains aligned with the guide rod 908, effectively preventing bending, skewness, or instability of the spring under stress. This structure makes the movement of the mechanical reset assembly 9 more stable and reliable, and the force of the reset spring 904 can be transmitted accurately and smoothly, thus ensuring the accuracy and durability of the mechanical reset function throughout the entire coloring section production device.

[0079] The following is a specific example: the guide rod 908 can be a precision-ground round rod made of high-strength stainless steel, with both ends securely fixed to the inner wall of the guide groove 902 of the protective plate 2 via threaded connections. The reset slider 901 has a precision linear bearing hole that matches the outer diameter of the guide rod 908. A self-lubricating bushing can be embedded in this hole, allowing the reset slider 901 to slide smoothly along the guide rod 908, effectively reducing frictional resistance and improving motion accuracy. The reset spring 904 can be a surface-treated alloy steel compression spring with an inner diameter slightly larger than the outer diameter of the guide rod 908, ensuring that the spring can freely fit on the guide rod 908 and maintain good axial stability during compression and release.

[0080] The longitudinal misalignment of the connecting slider 905 and the limiting block 907 means that the connecting slider 905 and the limiting block 907 are not perfectly aligned along their main direction of movement, but rather have a certain offset. For example, the effective working surfaces of the connecting slider 905 and the limiting block 907 partially overlap rather than completely overlap in the longitudinal direction (e.g., along the movement direction of the hanger 3), so that they can only fully engage or disengage under specific conditions; or, the initial relative positions of the connecting slider 905 and the limiting block 907 are designed to have a preset distance in the longitudinal direction, requiring specific movement or triggering conditions to bring them into the interaction area. This misalignment aims to ensure that the two can effectively contact and lock / unlock under specific conditions, improving the stability and reliability of the mechanism and avoiding misoperation or accidental disengagement. The reset slider 901 has a second slide groove 909 for the connecting slider 905 to slide. This second slide groove 909 is a guide structure inside the reset slider 901, used to limit the movement trajectory of the connecting slider 905, so that it can only slide within a preset range. For example, the second slide groove 909 can be a rectangular or U-shaped groove, within which the corresponding part of the connecting slider 905 is restricted to slide; or, the second slide groove 909 can be designed as a guide rail with a specific shape to guide the connecting slider 905 to perform non-linear movement, thereby achieving a more complex locking or unlocking mechanism. The function of this slide groove is to precisely control the movement of the connecting slider 905, ensuring its correct engagement and disengagement with the limiting block 907, and preventing unnecessary deflection or jamming of the connecting slider 905 within the reset slider 901. A slide rod 910 is fixedly connected to the connecting slider 905. This slide rod 910 is a rod-like structure extending from the connecting slider 905, used for sliding connection with the reset slider 901, and serving as a mounting base for other components. For example, the slide rod 910 can be a cylindrical or square solid rod, fixed to the connecting slider 905 by welding, threaded connection, or integral molding; or, the slide rod 910 can be designed as a hollow structure to facilitate internal wiring or to accommodate other small components. The slide bar 910 provides a sliding interface between the connecting slider 905 and the reset slider 901, and provides structural support for subsequent limiting and elastic reset. The sliding connection between the slide bar 910 and the reset slider 901 means that the slide bar 910 can move relative to a specific structure inside or outside the reset slider 901, typically in a linear motion. For example, the reset slider 901 has a hole or guide groove 902 that matches the shape of the slide bar 910, through which the slide bar 910 passes and can slide freely; alternatively, the slide bar 910 slides into the corresponding structure of the reset slider 901 via a bearing or bushing to reduce friction and improve the smoothness of movement. This sliding connection allows the connecting slider 905 to move relative to the reset slider 901, thereby achieving locking / unlocking or buffering functions.A limiting piece 911 is fixedly connected to the slide rod 910 outside the reset slider 901. This limiting piece 911 is a sheet-like structure fixed to the outside of the slide rod 910 to limit the sliding range of the slide rod 910 (and consequently, the connecting slider 905). For example, the limiting piece 911 can be an annular or rectangular baffle, fixed to the slide rod 910 by screws, clips, or welding. When it contacts the edge of the reset slider 901 or other fixed structures, it prevents the slide rod 910 from sliding further. Alternatively, the limiting piece 911 can be integrally formed with the slide rod 910, creating a stepped structure whose edge engages with the inner wall or outer structure of the reset slider 901 to achieve a limiting effect. The function of the limiting piece 911 is to prevent the connecting slider 905 from sliding too far inside the reset slider 901, ensuring its range of motion is within the design limits and preventing disengagement or damage to the mechanism. A first spring 912 is sleeved on the slide rod 910 inside the reset slider 901. This first spring 912, located inside the reset slider 901, provides elastic force, typically pushing the connecting slider 905 in a certain direction or providing cushioning. For example, the first spring 912 can be a compression spring, with one end abutting against a fixed structure on the connecting slider 905 or slide rod 910, and the other end abutting against the inner wall or internal fixed structure of the reset slider 901; alternatively, the first spring 912 can be a tension spring, with both ends connected to the interior of the slide rod 910 and the reset slider 901 respectively to provide tension. This first spring 912 provides preload or reset force to the connecting slider 905, enabling it to automatically reset or remain in a certain position under specific conditions, enhancing the stability and response speed of the mechanism.

[0081] The solution in this application constructs a more precise locking and unlocking mechanism by longitudinally misaligning the connecting slider 905 and the limiting block 907, and combining them with the second sliding groove 909 inside the reset slider 901, the sliding rod 910 on the connecting slider 905, the sliding connection between the sliding rod 910 and the reset slider 901, the limiting piece 911 outside the reset slider 901, and the first spring 912 sleeved on the sliding rod 910 inside the reset slider 901. Figure 6-9As shown, when the lever 10 pushes the reset slider 901 to move via the connecting slider 905, the reset slider 901 moves along the guide groove 902 and the limiting block 907. Then, the connecting pin 906 on the connecting slider 905 contacts the inclined surface of the limiting block 907. The sliding connection between the slider 910 and the reset slider 901, along with the first spring 912 fitted on it, allows the connecting pin 906 to be buffered and pre-compressed by the elastic action of the first spring 912 when it contacts the limiting block 907. This causes the connecting slider 905 to slide backward into the second sliding groove 909 inside the reset slider 901. Simultaneously, the connecting slider 905 disengages from the lever 10. The connecting slider 905 moves in the opposite direction to the limiting block 907 under the action of the reset spring 904, and the resistance on the front side of the connecting pin 906 on the connecting slider 905 disappears. The first spring 912 then pushes the connecting slider 905 and the slider 910 forward. The longitudinally staggered placement of the connecting slider 905 and the limiting block 907 avoids direct contact between them. The limiting piece 911 precisely limits the sliding range of the connecting slider 905 on the slide rod 910, preventing overshoot or disengagement. Therefore, this mechanism not only avoids hard impacts between the connecting slider 905 and the limiting block 907, providing effective cushioning, but also ensures connection stability and smooth reset operation through precise guidance and limiting.

[0082] When the spray range or angle needs to be adjusted, the folding linkage assembly 606 can be extended or retracted via external drive or manual operation. The movement of the folding linkage assembly 606 causes the second outlet pipe 608 to change its position and angle, while the first outlet pipe 601 slides within the third slide groove 607 to coordinate with the movement of the folding linkage assembly 606. After the coloring liquid enters the first outlet pipe 601 from the inlet pipe 604, part of it is sprayed out through the nozzle 602 on the first outlet pipe 601, and the other part is transported to the second outlet pipe 608 through the connecting pipe 609, and then sprayed out through the nozzle 602 on the second outlet pipe 608. Through this linkage mechanism, the spray range can be expanded and the spray angle adjusted, allowing the coloring liquid to cover the surface of the roast chicken more evenly and comprehensively. Especially when processing roast chickens of different sizes or shapes, it can effectively avoid coloring dead spots and improve coloring quality.

[0083] The following is a specific example: the hanging plate 605 of the spray frame 6 can be made of 3mm thick stainless steel plate and is firmly connected to the protective plate 2 by bolts. The folding linkage assembly 606 can be composed of two connecting rods of equal length, each approximately 200mm long. The hinges between the connecting rods and between the connecting rods and the hanging plate 605 and the first liquid outlet pipe 601 are all connected by stainless steel pins to ensure flexible rotation and corrosion resistance. The third sliding groove 607 on the hanging plate 605 can be designed with a U-shaped cross section and a smooth inner wall to reduce the frictional resistance when the first liquid outlet pipe 601 slides. A slider can be installed on the outside of the first liquid outlet pipe 601, which slides in cooperation with the third sliding groove 607. The second liquid outlet pipe 608 can be made of the same diameter pipe as the first liquid outlet pipe 601, and it also has multiple nozzles 602. The connecting pipe 609 can be made of high-temperature and corrosion-resistant silicone tubing. Its two ends are connected to the interfaces of the first liquid outlet pipe 601 and the second liquid outlet pipe 608 respectively by clamps to ensure the sealing and flexibility of liquid transmission.

[0084] The gas guide pipe 14 is a conduit for transporting gas. As the inlet of the gas source, it introduces gas into the coloring system. It can be made of metal or composite materials, and its inner diameter and material can be selected according to the required gas flow rate and gas properties. The first gas outlet pipe 15 is a conduit that extends from the gas guide pipe 14 and connects to the gas nozzle. Its function is to guide the gas from the gas guide pipe 14 to the regulating gas nozzle 5 and it is part of the rotating mechanism of the regulating gas nozzle 5. It can be made of flexible or rigid tubing and is connected to the gas guide pipe 14 and the gas nozzle via a connector. The support base is a structural component used to support and fix the first gas outlet pipe 15. It provides a stable rotational support point for the first gas outlet pipe 15 and fixes it to the protective plate 2. It can be a bearing seat, fixed by bearings. The first connecting rod 16 is a mechanical component connecting the first exhaust pipe 15 and the second connecting rod 17. Its function is to associate the rotation of the first exhaust pipe 15 with the movement of the second connecting rod 17 and transmit the motion. It can be a rigid rod. The first exhaust pipe 15 has a rotary joint. One end of the first exhaust pipe 15 is fixedly connected to the first connecting rod 16, and the other end of the first connecting rod 16 is hinged to the second connecting rod 17 through a pin. The second connecting rod 17 is a mechanical component connecting the first connecting rod 16 and the cam disk 18. The cam disk 18 is a disc-shaped mechanical part with a specific profile. Through its profile and cooperation with the second connecting rod 17, it converts the rotational motion into reciprocating motion or realizes rotational control at a specific angle, thereby precisely controlling the rotation angle of the first exhaust pipe 15. It can be a circular, elliptical, or irregularly shaped disk, and its profile can be designed according to the required rotation curve. It is usually made of metal or high-strength engineering plastic.

[0085] The present application constructs a gas delivery path by fixing a gas guide pipe 14 to the coloring box 1 and rotatably connecting the gas guide pipe 14 to a first gas outlet pipe 15, which is further connected to an adjusting nozzle 5. To achieve precise control of the angle of the adjusting nozzle 5, the first gas outlet pipe 15 is rotatably connected to a support fixed to the protective plate 2, allowing the first gas outlet pipe 15 to rotate around the axis of the support. Furthermore, a first connecting rod 16 is fixedly connected to the first gas outlet pipe 15, which is then hinged to a second connecting rod 17, which in turn is hinged to a cam disk 18 rotatably connected to the protective plate 2. When the cam disk 18 rotates under external drive (e.g., by a motor), its preset contour interacts with the second connecting rod 17, converting the rotational motion of the cam disk 18 into a specific reciprocating or oscillating motion of the second connecting rod 17. This motion is transmitted to the first gas outlet pipe 15 via the first connecting rod 16, thereby driving the adjusting nozzle 5, which is connected to the first gas outlet pipe 15, to perform precise angle adjustment. The entire linkage mechanism ingeniously transforms the rotational motion of the cam disc 18 into the precise rotation of the air nozzle 5, enabling the injection angle of the air nozzle 5 to be automatically and precisely adjusted according to a preset program or actual needs. This overcomes the limitations of traditional manual or simple mechanical adjustments and ensures the uniformity and consistency of the roast chicken coloring process.

[0086] The following is a specific example: the air guide pipe 14 fixedly connected to the coloring box 1 can be made of stainless steel and fixed to the coloring box 1 via a flange connection. The first air outlet pipe 15 can be a bent metal pipe, with one end connected to the air guide pipe 14 via a rotary joint, and the other end connected to the adjusting nozzle 5 via a threaded connection. The support base can be a U-shaped bracket with a bearing, fixed to the protective plate 2 by bolts. The inner hole of the bearing matches the outer diameter of the first air outlet pipe 15, allowing the first air outlet pipe 15 to rotate freely within it. The first connecting rod 16 can be a flat metal rod, with one end welded to the outer wall of the first air outlet pipe 15, and the other end hinged to the second connecting rod 17 via a pin. The second connecting rod 17 can be a metal rod with a long hole, with one end hinged to the first connecting rod 16 via a pin, and the other end slidingly engaged with a radial groove on the cam disk 18 via a pin. The cam disk 18 can be a circular metal disk with a specific curved profile on its edge, mounted on the protective plate 2 via a central bearing, and driven to rotate by a stepper motor.

[0087] The solution proposed in this application optimizes the distribution of the colorant by setting an additional gas distribution path within the coloring chamber 1. Specifically, the gas guide pipe 14 connects to the second gas outlet pipe 19, which in turn connects to the guide block 20. The gas guide pipe 14 serves as the main gas source, supplying gas to the regulating nozzle 5 while also diverting gas to the second gas outlet pipe 19. When the gas enters the guide block 20, its internal structure, designed as a triangular prism with its outlet located at the bottom, effectively guides the airflow, allowing it to diffuse evenly downwards upon exiting the guide block 20. This avoids direct impact from the airflow, creating a softer and more uniform gas coverage area within the coloring chamber 1. The fixed connection between the guide block 20 and the coloring chamber 1 ensures its stability during operation and guarantees the continuous and effective gas distribution. This dual gas distribution mechanism, which combines the direct injection of the regulating nozzle 5 with the diffusion distribution of the guide block 20, makes the distribution of colorant in the coloring box 1 more comprehensive and precise. It can effectively make up for the lack of uniformity of a single regulating nozzle 5. Especially when processing roasted chicken with complex shapes or requiring full coverage, it can significantly improve the uniformity of the coloring effect and the utilization rate of the colorant.

[0088] The following is a specific example: the vent pipe 14 can be a stainless steel pipe with a diameter of DN25. The second vent pipe 19 can be a stainless steel branch pipe with a diameter of DN15, which is welded out from the side wall of the vent pipe 14. The guide block 20 can be made of 2mm thick stainless steel sheet bent and welded into an equilateral triangular prism structure with a side length of 100mm, the length of which is similar to the width of the coloring box 1. The vent of the guide block 20 can be an array of circular holes with a diameter of 5mm evenly distributed on its bottom surface, or a slit with a width of 10mm opened along its length. The guide block 20 is fixed to the top inner wall of the coloring box 1 with M6 bolts via an L-shaped bracket, ensuring that its vent faces downward. The second vent pipe 19 is connected to the top vent of the guide block 20 via a sealing joint.

[0089] The solution of this application achieves effective circulation and uniform distribution of the coloring liquid within the heat-preserving box 7 by setting a filter hole 21 between the coloring box 1 and the heat-preserving box 7, and configuring a liquid / product guiding system inside the heat-preserving box 7 consisting of a first guide roller 22, a second guide roller 23, and a gear and pulley transmission mechanism. After the coloring liquid is sprayed in the coloring box 1, some of it enters the heat-preserving box 7 through the filter hole 21. Inside the heat-preserving box 7, the first guide roller 22 and the second guide roller 23 rotate continuously under the coordinated drive of the drive gear 25, the connecting gear 24, the first pulley group 26, and the second pulley group 27. This rotation not only guides the coloring liquid within the heat-preserving box 7 to form a certain flow, avoiding local accumulation and dead zones, but also assists the roasted chicken product in moving slowly in the coloring liquid, ensuring that all surfaces of the roasted chicken are evenly immersed in the coloring liquid. The presence of the filter hole 21 allows the coloring liquid to flow between the two boxes and also performs preliminary filtration of the liquid, reducing impurities entering the heat-preserving box 7. The entire system ensures the stable and reliable operation of the guide rollers through mechanical transmission, thereby continuously optimizing the contact effect between the coloring liquid and the roast chicken during the heat preservation stage, effectively solving the problem of uneven coloring.

[0090] The following is a specific example. The filter holes 21 between the coloring tank 1 and the insulation tank 7 can be specifically configured as a row of circular holes with a diameter of about 5 mm located at the bottom edge of the insulation tank 7. These holes are evenly distributed to ensure that the coloring liquid can be smoothly exchanged between the coloring tank 1 and the insulation tank 7. The first guide roller 22 and the second guide roller 23 inside the insulation tank 7 can be food-grade polyethylene rollers with a diameter of 100 mm, with a smooth surface, and arranged parallel to the length of the insulation tank 7. One end of the first guide roller 22 passes through the wall of the insulation tank 7 through a bearing seat, and a spur gear 24 with a module of 2 is fixedly connected to this end. The lower part of the connecting gear 24 meshes with a spur gear 25 with the same module of 2, and the drive gear 25 is driven by a small geared motor. A first V-belt pulley with a diameter of 80 mm is coaxially fixedly connected to the shaft of the drive gear 25. The first V-belt pulley is connected to a second V-belt pulley with a diameter of 120 mm via a V-belt. The output shaft of the second V-shaped pulley passes through the wall of the heat preservation box 7 and is fixedly connected to the second guide roller 23, thereby realizing the synchronous counter-rotation of the two guide rollers, which together promote the flow of coloring liquid and the uniform coloring of roast chicken.

[0091] Through the above technical solution, in the coloring section of the roast chicken processing equipment, the filter holes 21 installed between the coloring box 1 and the heat preservation box 7, as well as the guide rollers and transmission mechanism inside the heat preservation box 7, can effectively promote the circulation and uniform distribution of the coloring liquid within the heat preservation box 7. This significantly improves the coloring uniformity of the roast chicken during the heat preservation stage, avoiding the problem of localized overly dark or light coloring, thereby enhancing the overall appearance quality of the roast chicken product. Simultaneously, the continuous flow and filtration of the coloring liquid also help reduce impurity accumulation, extend the service life of the coloring liquid, maintain the cleanliness of the equipment, and reduce production costs and maintenance frequency.

[0092] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coloring section production device for roast chicken processing, characterized in that: The device includes a coloring box (1), on which two sets of symmetrically distributed protective plates (2) are fixedly connected. A hanger (3) is provided between the two sets of protective plates (2), and a supporting rail (4) is fitted on the hanger (3). Along the moving direction of the hanger (3), an adjusting nozzle (5), a spray frame (6), and a heat preservation box (7) are sequentially provided inside the coloring box (1). The adjusting nozzle (5) is rotatably connected to the protective plate (2), and a contact switch (8) is fixedly connected to the protective plate (2). The side of the touch switch (8) is fitted with a mechanical reset assembly (9). The hanger (3) is fixedly connected with a lever (10) that cooperates with the mechanical reset assembly (9). The mechanical reset assembly (9) is located above the spray rack (6). The spray rack (6) moves synchronously with the hanger (3). The support rail (4) above the heat preservation box (7) has a concave structure. The color boxes (1) on both sides of the heat preservation box (7) are provided with guide grooves (11). The guide grooves (11) are connected to the heat preservation box (7).

2. The coloring section production device for roast chicken processing according to claim 1, characterized in that: The mechanical reset assembly (9) includes a reset slider (901), which is fixedly connected to the spray frame (6). The protective plate (2) is provided with a guide groove (902) for the reset slider (901) to slide. A damping block (903) is provided on one side of the reset slider (901), and a reset spring (904) is provided on the other side of the reset slider (901). The reset slider (901) is slidably connected to a connecting slider (905), and a connecting pin (906) is fixedly connected to the connecting slider (905). A limit block (907) is fixedly connected to the protective plate (2), and both the connecting slider (905) and the limit block (907) have inclined surfaces on their sides.

3. The coloring section production device for roast chicken processing according to claim 2, characterized in that: The protective plate (2) is provided with a guide plate (12), the guide plate (12) is fixedly connected to the limiting block (907), the lever (10) is located between the guide plate (12) and the protective plate (2), and the ends of the guide plate (12) and the protective plate (2) are provided with V-shaped entrances.

4. The coloring section production device for roast chicken processing according to claim 2, characterized in that: The spray frame (6) includes a first outlet pipe (601), on which multiple sets of vertically arranged nozzles (602) are provided. A support block (603) is fixedly connected to the first outlet pipe (601), and an inlet pipe (604) is fixedly connected to the support block (603). The inlet pipe (604) is connected to the first outlet pipe (601) through the support block (603). The protective plate (2) is provided with a first sliding groove (13) for the support block (603) to slide. The support block (603) is fixedly connected to the reset slider (901).

5. The coloring section production device for roast chicken processing according to claim 2, characterized in that: A guide rod (908) is fixedly connected inside the guide groove (902). The guide rod (908) passes through the reset slider (901) and is slidably connected to the reset slider (901). The reset spring (904) is sleeved on the guide rod (908).

6. The coloring section production device for roast chicken processing according to claim 2, characterized in that: The connecting slider (905) and the limiting block (907) are longitudinally offset. The reset slider (901) is provided with a second sliding groove (909) for the connecting slider (905) to slide. A sliding rod (910) is fixedly connected to the connecting slider (905). The sliding rod (910) is slidably connected to the reset slider (901). A limiting piece (911) is fixedly connected to the sliding rod (910) outside the reset slider (901). A first spring (912) is sleeved on the sliding rod (910) inside the reset slider (901).

7. The coloring section production device for roast chicken processing according to claim 4, characterized in that: The spray frame (6) also includes a hanging plate (605), which is fixedly connected to the protective plate (2). The hanging plate (605) is provided with a folding linkage group (606). One end of the folding linkage group (606) is hinged to the hanging plate (605), and the other end of the folding linkage group (606) is hinged to the first liquid outlet pipe (601). The hanging plate (605) is provided with a third sliding groove (607) for the first liquid outlet pipe (601) to slide. The middle and end of the folding linkage group (606) are both hinged to a second liquid outlet pipe (608). A connecting pipe (609) connects the second liquid outlet pipe (608) to the first liquid outlet pipe (601).

8. The coloring section production device for roast chicken processing according to claim 1, characterized in that: A duct pipe (14) is fixedly connected to the coloring box (1). The duct pipe (14) is rotatably connected to a first air outlet pipe (15). The first air outlet pipe (15) is connected to the air nozzle. The first air outlet pipe (15) is rotatably connected to a support seat. The support seat is fixedly connected to the protective plate (2). The first air outlet pipe (15) is fixedly connected to a first connecting rod (16). The first connecting rod (16) is hinged to a second connecting rod (17). The second connecting rod (17) is hinged to a cam disk (18). The cam disk (18) is rotatably connected to the protective plate (2).

9. The coloring section production device for roast chicken processing according to claim 8, characterized in that: The air guide pipe (14) is connected to the second air outlet pipe (19), and the second air outlet pipe (19) is connected to the guide block (20). The guide block (20) is a triangular prism structure, and the air outlet of the guide block (20) is located below it. The guide block (20) is fixedly connected to the coloring box (1).

10. The coloring section production device for roast chicken processing according to claim 1, characterized in that: A filter hole (21) is provided between the coloring box (1) and the heat preservation box (7). A first guide roller (22) and a second guide roller (23) are rotatably connected inside the heat preservation box (7). A connecting gear (24) is fixedly connected to the first guide roller (22). A drive gear (25) meshes below the connecting gear (24). A first pulley group (26) is coaxially fixedly connected to the drive gear (25). A second pulley group (27) is fixedly connected to the output end of the first pulley group (26). The output end of the second pulley group (27) is fixedly connected to the second guide roller (23).

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