A pet freeze-dried filling machine

Abstract

This utility model discloses a filling machine for freeze-dried pet products, including a filling machine body. The inner wall of the bottom of the filling machine body is provided with a guide slope to prevent material accumulation. Several sets of stirring blades for agitating the material are rotatably installed in the middle of the filling machine body. A scraper is movably installed on the side of the stirring blade on one side, and a cleaning plate is movably installed on the side of the stirring blade on the other side. The output ends of the scraper and the cleaning plate are in close contact with the inner wall of the filling machine body and the surface of the guide slope. A conveying pipe connected to a cleaning agent conveying device is installed through the top of the filling machine body. A flow control valve is installed in the middle of the conveying pipe, and several sets of nozzles are installed at the output end of the conveying pipe. Through the cooperation of the guide slope structure, the scraper, and the cleaning agent spraying device, the freeze-dried debris remaining in the dead corners inside the equipment is effectively removed, ensuring hygienic and safe filling, while preventing dried material from clogging moving parts and maintaining long-term stable operation of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of pet freeze-dried filling technology, specifically a pet freeze-dried filling machine. Background Technology

[0002] Pet freeze-dried food filling machines are used to quantitatively fill freeze-dried pet food into packaging containers. Through structural optimization such as arc pipes, nano-coatings, and quick-opening valves, combined with technologies such as vibration feeding and ultrasonic anti-sticking, the machine solves the problem of material blockage and achieves efficient and stable filling. It is suitable for the production of freeze-dried pet food.

[0003] Existing pet freeze-dried filling machines often suffer from difficulty in thoroughly cleaning the internal structural blind spots, and traditional cleaning tools cannot effectively reach residual freeze-dried debris. Long-term accumulation can lead to bacterial growth and product contamination, as well as the drying and clogging of moving parts, accelerating equipment wear and ultimately affecting filling accuracy, hygiene and safety, and production efficiency.

[0004] As disclosed in the prior art, Chinese utility model publication CN 219904774 U discloses a filling machine for freeze-dried pets, including a filling machine body, a feed inlet fixedly installed on the top of the filling machine body, a motor fixedly installed on the top of the filling machine body, a rotating shaft fixedly connected to the output end of the motor, a connecting plate fixedly connected to the outer wall of the rotating shaft, a first spring fixedly connected to one side wall of the connecting plate, a sleeve fixedly connected to one end of the first spring, a discharge port fixedly connected to one side of the bottom of the filling machine body, a support frame fixedly connected to the bottom of the filling machine body, and a conveyor belt fixedly installed on the top of the support frame.

[0005] The cited patent reveals the aforementioned problems in the prior art, thus necessitating a filling machine for freeze-dried pet food. Utility Model Content

[0006] The purpose of this utility model is to provide a filling machine for freeze-dried pet products. By combining a guide slope, a scraper, and a cleaning plate, along with a nozzle that can spray cleaning agent, it can achieve efficient cleaning and material handling, thereby solving the technical problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A filling machine for freeze-dried pet products includes a filling machine body. The inner wall of the bottom of the filling machine body is provided with a guide slope to prevent material accumulation. Several sets of stirring blades for stirring the material are rotatably installed in the middle of the filling machine body. A scraper is movably installed on the side of the stirring blade on the same side, and a cleaning plate is movably installed on the side of the stirring blade on the other side. The output ends of the scraper and the cleaning plate are in close contact with the inner wall of the filling machine body and the surface of the guide slope.

[0009] A conveying pipe connected to a cleaning agent conveying device is installed through the top of the filling machine body. A volume control valve is installed in the middle of the conveying pipe, and several sets of nozzles are installed at the output end of the conveying pipe. The spraying direction of the several sets of nozzles is all towards the inner wall of the filling machine body.

[0010] Preferably, a motor for driving the rotating shaft is installed on the top of the filling machine body, and the rotating shaft is installed through the interior of the filling machine body.

[0011] Preferably, several groups of stirring blades are symmetrically distributed at equal intervals along the axis of rotation, and the leading edge of each group of stirring blades is rounded with a blunted corner.

[0012] Preferably, each set of stirring blades has a movable groove on its side wall, and the scraper and the cleaning plate have several sets of protrusions that match the movable groove on their side walls. The side wall of each set of protrusions is connected to the inner wall of the movable groove by a spring.

[0013] Preferably, a feed pipe is installed through the top of the filling machine body on the side of the motor, and a discharge pipe is provided at the bottom of the filling machine body, with a first valve provided in the middle of the discharge pipe.

[0014] Preferably, a sewage pipe connected to an external sewage collection device is installed through the side wall of the discharge pipe, and a second valve is installed in the middle of the sewage pipe.

[0015] Preferably, the surface of the guide slope is coated with a hydrophobic nano-coating, and the inclination angle of the guide slope is greater than °.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] When the mixing blades rotate and agitate the material, they simultaneously drive the scraper and cleaning plate to dynamically scrape and wash along the inner wall of the filling machine and the surface of the guide slope. When internal cleaning is required, the flow control valve opens, and the delivery pipe sprays cleaning agent directionally onto the inner wall of the filling machine through the nozzle. This, combined with the mechanical scraping action of the scraper and cleaning plate, achieves deep cleaning. Through the cooperation of the guide slope structure, the scraping components, and the cleaning agent spraying components, the freeze-dried debris remaining in the dead corners of the equipment is effectively removed, eliminating the risk of bacterial growth, ensuring hygienic and safe filling, and preventing dried material from clogging moving parts, thus maintaining the long-term stable operation of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the filling machine of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the filling machine body of this utility model;

[0021] Figure 4 This is a schematic diagram showing the disassembled structure of the stirring blade side of this utility model.

[0022] In the diagram: 1. Filling machine body; 2. Guide slope; 3. Motor; 4. Rotating shaft; 5. Mixing blade; 6. Scraper; 7. Cleaning plate; 8. Movable groove; 9. Protrusion; 10. Spring; 11. Conveying pipe; 12. Quantity control valve; 13. Nozzle; 14. Feed pipe; 15. Discharge pipe; 16. First valve; 17. Drain pipe; 18. Second valve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides: a filling machine for freeze-dried pet products, such as... Figures 1-4 As shown, the machine includes a filling machine body 1. The inner wall of the bottom of the filling machine body 1 is provided with a guide slope 2 to prevent material accumulation. Several sets of stirring blades 5 are rotatably installed in the middle of the filling machine body 1 to agitate the material. A scraper 6 is movably installed on the side of the stirring blade 5 on one side, and a cleaning plate 7 is movably installed on the side of the stirring blade 5 on the other side. The output ends of the scraper 6 and the cleaning plate 7 are in close contact with the inner wall of the filling machine body 1 and the surface of the guide slope 2. The filling machine body 1 provides a mounting base and working space for other components. The guide slope 2 is located on the inner wall of the bottom of the filling machine body 1. Its inclined design utilizes the material's own weight, allowing the material to slide down quickly, avoiding accumulation at the bottom and forming cleaning dead corners, while reducing material residue and simplifying subsequent cleaning processes. When working, the stirring blades 5 rotate at high speed under the drive of a motor, thoroughly agitating the freeze-dried pet material entering the filling machine, ensuring uniform mixing and consistency of the filled material. When the mixing blade 5 rotates and mixes the material, it drives the scraper 6 and the cleaning plate 7 to move synchronously along the inner wall of the filling machine body 1 and the surface of the guide slope 2. Since the scraper 6 and the cleaning plate 7 are always in close contact with the inner wall and the slope, they can scrape off the material adhering to the wall surface in real time, preventing material residue from clumping. This not only ensures the smoothness of the mixing and filling process, but also performs preliminary cleaning in advance, reducing the risk of bacterial growth inside the equipment and equipment wear caused by material drying, creating favorable conditions for subsequent deep cleaning.

[0025] A conveying pipe 11, connected to a cleaning agent conveying device, is installed through the top of the filling machine body 1. A flow control valve 12 is installed in the middle of the conveying pipe 11, and several sets of nozzles 13 are installed at the output end of the conveying pipe 11. The spray direction of the nozzles 13 is all towards the inner wall of the filling machine body 1. The conveying pipe 11 is connected to an external cleaning agent conveying device to deliver the cleaning agent into the filling machine body 1. The flow control valve 12 is installed in the middle of the conveying pipe 11, allowing the operator to precisely adjust the flow rate of the cleaning agent according to cleaning needs, avoiding waste or incomplete cleaning. The several sets of nozzles 13 at the output end of the conveying pipe 11 are distributed towards the inner wall of the filling machine body 1. When the cleaning program is started, the flow control valve 12 opens, and the cleaning agent is sprayed from the nozzles 13 through the conveying pipe 11, spraying onto the inner wall of the filling machine in a mist or columnar manner. The multi-angle arrangement of the nozzles 13 ensures that the cleaning agent covers all parts of the inner wall of the filling machine, especially the tiny corners that are difficult for the scraper 6 and cleaning plate 7 to reach. The sprayed cleaning agent can soften the dried material, and in conjunction with the mechanical scraping action of the scraper 6 and the cleaning plate 7, it can achieve deep cleaning of the inside of the filling machine, effectively remove residual freeze-dried debris, further ensure the hygiene and safety of the equipment, and prevent bacterial growth from affecting product quality.

[0026] Preferably, a motor 3 is installed on the top of the filling machine body 1 to drive the rotating shaft 4, which is installed inside the filling machine body 1. The motor 3 drives the rotating shaft 4 to rotate, and the rotating shaft 4 transmits the rotational power of the motor 3 to the stirring blade 5 installed on it. Through the rotation of the rotating shaft 4, the stirring blade 5 is driven to rotate at high speed in the middle of the filling machine body 1, realizing the stirring function of the material. At the same time, the stable rotation of the rotating shaft 4 also ensures that the stirring blade 5 drives the scraper 6 and the cleaning plate 7 to perform scraping and washing work synchronously and smoothly.

[0027] Motor 3 can be a 3kW, 1450r / min YE3 series high-efficiency three-phase asynchronous motor. This motor has a rated voltage of 380V, is compatible with conventional industrial power supplies, and meets the IE3 energy efficiency standard, saving more than 15% energy compared to ordinary motors. Its synchronous speed is 1500r / min, and with the gearbox, the stirring blade speed can be controlled at 20-30r / min, ensuring uniform mixing of materials while preventing breakage of the freeze-dried material due to high-speed operation.

[0028] Furthermore, several groups of stirring blades 5 are symmetrically distributed at equal intervals along the axis of rotation 4, and the leading edges of the blades in each group of stirring blades 5 are rounded and blunted. This symmetrical distribution of the stirring blades 5 along the axis of rotation 4 ensures that the stirring blades 5 generate a uniform stirring force on the material within the filling machine body during rotation. The equidistant distribution guarantees that the material receives the same intensity of stirring at all locations, avoiding insufficient or excessive stirring in certain areas, thus ensuring uniform mixing of the material. The rounded and blunted leading edges of the stirring blades 5 reduce damage to the material during stirring and prevent material from sticking to the upper part of the stirring blades 5.

[0029] Furthermore, each set of stirring blades 5 has a movable groove 8 on its side wall, and the scraper 6 and cleaning plate 7 have several sets of protrusions 9 that match the movable groove 8 on their side walls. The side wall of each set of protrusions 9 is connected to the inner wall of the movable groove 8 by a spring 10. The movable groove 8 and the protrusions 9 on the side walls of the scraper 6 and cleaning plate 7 cooperate with each other to form a movable mounting structure for the scraper 6 and cleaning plate 7. The protrusions 9 are embedded in the movable groove 8, so that the scraper 6 and cleaning plate 7 can move synchronously with the rotation of the stirring blades 5. Each set of protrusions 9 is connected to the inner wall of the movable groove 8 by a spring 10. During the rotation of the stirring blades 5, the spring 10 always applies an outward elastic force to the protrusions 9, so that the scraper 6 and cleaning plate 7 are tightly attached to the inner wall of the filling machine body 1 and the surface of the guide slope 2. Even after long-term use, when the scraper 6 and cleaning plate 7 experience a certain degree of wear, the spring 10 can automatically adjust their positions through its own elasticity to ensure a continuous and effective scraping and cleaning effect.

[0030] It is worth noting that a feed pipe 14 is installed through the top of the filling machine body 1, located on the side of the motor 3, and a discharge pipe 15 is installed at the bottom of the filling machine body 1, with a first valve 16 located in the middle of the discharge pipe 15. During production, the material is conveyed into the filling machine body 1 through the feed pipe 14 and enters the mixing area. The discharge pipe 15 at the bottom of the filling machine body 1 is responsible for discharging the evenly mixed material for filling operations. The first valve 16 in the middle of the discharge pipe 15 plays a crucial role in controlling the material discharge. During the material mixing process, the first valve 16 is closed to prevent premature material flow; when the material is mixed and meets the filling requirements, the operator opens the first valve 16, and the material is smoothly discharged from the discharge pipe 15 under gravity or other conveying pressure, ensuring the continuity and stability of the filling production process.

[0031] The first valve, 16, can be a DN50 or PN16 pneumatic flanged ball valve. The valve body is made of 304 stainless steel with a surface roughness Ra≤0.8μm, meeting food-grade hygiene standards to prevent bacterial growth from material residue. The pneumatic actuator has a response time of <0.5s, and when combined with a PLC control system, it can achieve precise control of the discharge volume, suitable for the smooth discharge of freeze-dried material particles. Compared with manual valves, it improves efficiency by 40% while reducing manual operation intensity.

[0032] Specifically, a sewage pipe 17, connected to an external sewage collection device, is installed through the side wall of the discharge pipe 15. A second valve 18 is installed in the middle of the sewage pipe 17. The sewage pipe 17 is installed through the side wall of the discharge pipe 15, with one end connected to the inside of the filling machine and the other end connected to the external sewage collection device. The second valve 18 in the middle of the sewage pipe 17 is used to control the discharge of sewage. During the cleaning process of the filling machine, after the nozzle 13 sprays cleaning agent and the scraper 6 and cleaning plate 7 scrape and wash, sewage containing residual material debris and cleaning agent will accumulate at the bottom of the filling machine. At this time, the operator opens the second valve 18, and the sewage flows quickly into the external sewage collection device through the sewage pipe 17 under the action of gravity. Separating the sewage pipe 17 from the discharge pipe 15 and controlling it separately through the second valve 18 can effectively avoid the mixing of cleaning sewage and material conveying channels, prevent cross-contamination, ensure the cleanliness of the discharge pipe 15 during the production process, and avoid the impact of sewage residue on the filling quality of subsequent materials.

[0033] The second valve 18 can be a DN40 or PN10 electric butterfly valve. The valve body is made of 316L stainless steel, which is highly resistant to acids and alkalis and suitable for long-term rinsing with cleaning agents. The motor power is 0.18kW, the opening time is <8s, and it supports 0-10V analog signal control. It can be connected to the filling machine cleaning system to achieve automatic sewage discharge.

[0034] More specifically, the surface of the guide ramp 2 is coated with a hydrophobic nano-coating, and the inclination angle of the guide ramp 2 is greater than 45°. The hydrophobic nano-coating on the surface of the guide ramp 2 has extremely strong hydrophobicity, which can significantly reduce the adhesion between the material and the ramp. When the freeze-dried pet material comes into contact with the guide ramp 2, due to the effect of the hydrophobic nano-coating, the material is not easy to stick to the ramp and can slide down more smoothly. The inclination angle of the guide ramp 2, which is greater than 45°, further enhances the power of the material to slide down by its own gravity. The two work together to ensure that the material does not form a cleaning dead corner at the bottom of the filling machine body 1 due to adhesion or accumulation, reducing material residue; on the other hand, during the cleaning process, residual material and cleaning agent can more easily flow quickly to the drain port along the ramp with hydrophobic nano-coating, making cleaning easier.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pet freeze-dried filling machine characterized by: The filling machine includes a filling machine body (1), the inner wall of the bottom of the filling machine body (1) is provided with a guide slope (2) to prevent material accumulation, a number of sets of stirring blades (5) for stirring materials are rotatably installed in the middle of the filling machine body (1), a scraper (6) is movably installed on the side of the stirring blade (5) on the same side, and a cleaning plate (7) is movably installed on the side of the stirring blade (5) on the other side. The output ends of the scraper (6) and the cleaning plate (7) are closely attached to the inner wall of the filling machine body (1) and the surface of the guide slope (2). The top of the filling machine body (1) is connected to a conveying pipe (11) for conveying cleaning agent. A flow control valve (12) is installed in the middle of the conveying pipe (11). Several sets of nozzles (13) are installed at the output end of the conveying pipe (11). The spraying direction of the several sets of nozzles (13) is towards the inner wall of the filling machine body (1).

2. A pet freeze-dried filling machine according to claim 1, characterized in that: The top of the filling machine body (1) is equipped with a motor (3) that drives the rotating shaft (4) to rotate, and the rotating shaft (4) is installed inside the filling machine body (1).

3. A pet freeze-dried filling machine according to claim 2, characterized in that: Several groups of stirring blades (5) are symmetrically distributed at equal intervals along the axis of rotation (4), and the leading edge of each group of stirring blades (5) is rounded with a blunted corner.

4. A pet freeze-dried filling machine according to claim 3, characterized in that: Each set of stirring blades (5) has a movable groove (8) on its side wall. The scraper (6) and the cleaning plate (7) are equipped with several sets of protrusions (9) that match the movable groove (8). The side wall of each set of protrusions (9) is connected to the inner wall of the movable groove (8) by a spring (10).

5. A pet freeze-dried filling machine according to claim 1, characterized in that: The top of the filling machine body (1) is connected to the side of the motor (3) and a feed pipe (14) is installed through it. The bottom of the filling machine body (1) is provided with a discharge pipe (15) and a first valve (16) is provided in the middle of the discharge pipe (15).

6. A pet freeze-dried filling machine according to claim 5, characterized in that: The side wall of the discharge pipe (15) is connected to a sewage pipe (17) that is connected to an external sewage collection device. A second valve (18) is installed in the middle of the sewage pipe (17).

7. A pet freeze-dried filling machine according to claim 1, characterized in that: The surface of the guide slope (2) is coated with a hydrophobic nano-coating, and the tilt angle of the guide slope (2) is greater than 45°.

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