An egg shell cleaning device

Abstract

The utility model discloses an egg surface shell dirt cleaning device, including cleaning tank and spray head. The utility model discloses a spray head, ultrasonic generator, cleaning tank have been adopted, after placing fixed egg, personnel can immerse the whole structure in the cleaning tank, so that the egg can be fully contacted with liquid and stand for a certain time, so as to soften the dirt on the surface of the egg, so that it can naturally fall off a part, then the liquid driven by the spray head can make the liquid in the box body present flow trend, and then the dirt remaining on the surface of the egg shell is washed away through the flow of the liquid, and the egg shell can be cleaned by the ultrasonic generator, further improving the cleaning quality, and the whole cleaning process does not contact the hard object with the egg shell, which can reduce the damage to the egg shell, and further improve the integrity, which is convenient for better use, has the advantages of multiple cleaning, good cleaning effect and small cleaning damage.

Description

Technical Field

[0001] This utility model relates to the field of egg cleaning technology, specifically to a device for cleaning dirt off eggshells. Background Technology

[0002] In large-scale egg production, the eggshell is the area most likely to come into contact with chicken droppings and other contaminants. Therefore, in order to ensure smooth sales and subsequent food safety, it is necessary to clean the contaminants on the surface of the eggshell.

[0003] Currently, most existing methods for cleaning eggshells involve using a brush and water flow. However, the scraping action of the brush can easily damage the eggshell, affecting the integrity of the egg and hindering subsequent sales. Furthermore, simply scraping with a brush cannot effectively remove stubborn dirt, thus affecting the overall cleaning effect. There is room for improvement in this approach.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an eggshell cleaning device that offers multiple cleaning methods, excellent cleaning effect, and minimal cleaning damage, thereby solving the problems mentioned in the background technology.

[0007] (II) Technical Solution

[0008] To achieve the advantages of multiple cleaning processes, good cleaning effect, and minimal cleaning damage, the specific technical solution adopted by this utility model is as follows:

[0009] An eggshell cleaning device includes a cleaning tank and spray nozzles. A support plate is symmetrically welded to the middle of both sides of the top of the cleaning tank. A sliding rod is installed between the bottom of the support plate and the inner surface of the cleaning tank. A fixed plate is slidably connected to the outer periphery of the sliding rod. Adjustment grooves are symmetrically formed on both sides of the inner surface of the fixed plate. A slider is slidably connected inside the adjustment groove. A movable plate is installed between the sliders. Several sets of eggshell grooves are formed at the bottom of the movable plate and the top of the fixed plate. Water spray pipes are symmetrically installed on both sides of the sliding rod on the inner surface of the cleaning tank. Several sets of spray nozzles are evenly installed on the surface of the water spray pipes. An ultrasonic generator is installed below the water spray pipes on the inner surface of the cleaning tank.

[0010] Furthermore, a cylinder is installed at the top of one side of the support plate, and a lifting rod is connected to the telescopic end of the cylinder, with one end of the lifting rod passing through one side of the support plate and connecting to the top of the fixed plate.

[0011] Furthermore, several sets of through holes are evenly distributed on the surface of the eggshell groove.

[0012] Furthermore, a filter screen and a filter element are respectively installed below the slide rod on the inner surface of the cleaning tank.

[0013] Furthermore, water pumps are symmetrically installed on both sides of the cleaning tank, and the water pumps are connected to the spray pipe and the bottom area inside the cleaning tank through circulation pipes.

[0014] Furthermore, a control panel is provided on one side of the cleaning tank.

[0015] Furthermore, the eggshell groove structure is adapted to the structures at both ends of the eggshell.

[0016] Furthermore, positioning holes are provided on the surface of the slider, the surface of the fixing plate, and the inside of the adjustment groove, and the positioning holes are fixed together by fasteners.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides an eggshell cleaning device, which has the following beneficial effects:

[0019] This invention utilizes a nozzle, an ultrasonic generator, and a cleaning tank. After the eggs are placed and secured, the entire structure can be immersed in the cleaning tank, allowing the eggs to fully contact the liquid and remain still for a certain period. This softens the dirt on the egg surface, allowing some of it to fall off naturally. The liquid sprayed from the nozzle then causes the liquid inside the tank to flow, washing away any remaining dirt from the eggshell. Subsequently, the ultrasonic generator performs ultrasonic cleaning on the eggshell, further improving the cleaning quality. No hard objects come into contact with the eggshell during the entire cleaning process, reducing damage and improving its integrity for better use. It offers advantages such as multiple cleaning steps, excellent cleaning effect, and minimal damage. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an eggshell cleaning device proposed in this utility model;

[0022] Figure 2This is a schematic diagram of the structure of the movable plate of this utility model;

[0023] Figure 3 This is a schematic diagram of the connection structure between the water spray pipe and the nozzle of this utility model;

[0024] Figure 4 This is a schematic diagram of the eggshell groove of this utility model.

[0025] In the picture:

[0026] 1. Cleaning tank; 2. Support plate; 3. Cylinder; 4. Lifting rod; 5. Positioning hole; 6. Moving plate; 7. Eggshell slot; 8. Through hole; 9. Fixing plate; 10. Slider; 11. Adjustment groove; 12. Slide rod; 13. Water pump; 14. Circulation pipe; 15. Ultrasonic generator; 16. Water spray pipe; 17. Spray head; 18. Filter element; 19. Filter screen. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of the present invention, an eggshell cleaning device is provided.

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, an eggshell cleaning device according to an embodiment of the present invention includes a cleaning tank 1 and a spray nozzle 17. A support plate 2 is symmetrically welded to the middle of both sides of the top of the cleaning tank 1. A sliding rod 12 is installed between the bottom of the support plate 2 and the inner surface of the cleaning tank 1. A fixed plate 9 is slidably connected to the outer periphery of the sliding rod 12. Adjustment grooves 11 are symmetrically formed on both sides of the inner surface of the fixed plate 9. A slider 10 is slidably connected inside the adjustment grooves 11. A movable plate 6 is installed between the sliders 10. Several sets of eggshell grooves 7 are formed at the bottom of the movable plate 6 and the top of the fixed plate 9. Water spray pipes 16 are symmetrically installed on both sides of the sliding rod 12 on the inner surface of the cleaning tank 1. Several sets of spray nozzles 17 are evenly installed on the surface of the water spray pipes 16. The lower part of the water spray pipes 16 is located inside the cleaning tank 1. An ultrasonic generator 15 is installed on the surface of the part; Cleaning tank 1 and support plate 2: The cleaning tank 1 is welded from 304 stainless steel (e.g., 1000mm long × 600mm wide × 800mm high), and support plates 2 (e.g., Q235 steel plate, 600mm long × 100mm wide × 8mm thick) are symmetrically welded on both sides of the top. The support plates 2 are perpendicular to the top surface of the cleaning tank 1 and serve as the supporting base for the lifting mechanism; Slide rod 12 and fixing plate 9: Two slide rods 12 (e.g., stainless steel, 20mm diameter × 700mm long) are fixed at both ends to the bottom of the support plate 2 and the inner wall of the cleaning tank 1 by bolts. The fixing plate 9 (e.g., 304 stainless steel, 800mm long × 500mm wide × 5mm thick) has φ20.5mm through holes at both ends for sliding fit with the slide rods 12 (gap 0).5mm), can be raised and lowered along the slide bar 12 (stroke 0-500mm); Moving plate 6 and adjusting groove 11: Adjusting grooves 11 (e.g., length 500mm × width 15mm × depth 10mm) are symmetrically opened on both sides of the surface of the fixed plate 9, and sliders 10 (e.g., ABS plastic, 20mm × 10mm × 8mm) are slidably connected in the grooves. The sliders 10 are fixed to the moving plate 6 (e.g., 304 stainless steel, size matching the fixed plate 9) by bolts; Lifting stability: guided by double slide bars 12 + driven by cylinder 3, the verticality error of the lifting of the fixed plate 9 is reduced, ensuring that all eggs are soaked synchronously. Remove any unwashed eggs (liquid level difference ≤ 5mm) to avoid leaving any eggs unwashed or with residual liquid; Water spray pipes 16 and nozzles 17: Water spray pipes 16 (such as PVC pipes, 50mm in diameter) are symmetrically installed on both sides of the inner wall of the cleaning tank 1, with the pipe length matching the width of the fixing plate 9 (800mm). Nozzles 17 (such as copper, 2mm orifice diameter, 50mm spacing, 45° spray angle) are evenly distributed on the surface, with the nozzles 17 facing the center of the eggshell groove 7 (ensuring water flow covers the egg surface); Ultrasonic generator 15: An ultrasonic generator 15 (such as 50W power) is installed in the center of the bottom of the cleaning tank 1. 0W, 40kHz frequency), uniformly distributed transducers (6 groups), covering the entire cleaning area (sound field uniformity ≥90%); water flow distribution: 45° nozzle 17 causes water to flow obliquely onto the egg surface (flow velocity 1-2m / s), combined with the liquid flow through the through hole 8, forming a dual cleaning of "flushing + penetration", improving the dirt removal rate (especially dirt in the eggshell folds); ultrasonic synergy: 40kHz ultrasonic waves generate cavitation effect in the liquid (bubble diameter 50-100μm), acting uniformly on the egg surface, removing dirt smaller than 0.1mm. It effectively removes tiny impurities (such as bacterial biofilms), improving cleanliness compared to simple spraying; filtration precision: filter screen 19 intercepts large particles (≥0.15mm), and filter element 18 adsorbs oil and microorganisms (sterilization rate ≥90%), reducing circulating water turbidity from an initial 10 NTU to below 5 NTU, and can be reused 3-5 times (saving 60% of water); multiple cleaning processes: spraying after settling (removing visible surface dirt) → ultrasonic cleaning (removing tiny impurities) → secondary spraying (rinsing off residual dirt), achieving three levels of cleaning: "rough washing - fine washing - final washing," meeting food-grade hygiene standards.

[0030] like Figure 1 As shown, a cylinder 3 is installed at the top of one side of the support plate 2. The telescopic end of the cylinder 3 is connected to a lifting rod 4, and one end of the lifting rod 4 passes through one side of the support plate 2 and connects to the top of the fixed plate 9. The cylinder 3 and the lifting rod 4 are connected as follows: the cylinder 3 (such as model SC63×500, thrust 500N) is installed at the top of one side of the support plate 2 through a flange. The telescopic end of the cylinder 3 is connected to the lifting rod 4 (such as stainless steel, diameter 20mm) through a floating joint. The lifting rod 4 passes through the support plate 2 and is welded to the center of the top of the fixed plate 9 to drive the fixed plate 9 to rise and fall.

[0031] like Figure 1 , Figure 2 and Figure 4 As shown, several sets of through holes 8 are evenly opened on the surface of the eggshell groove 7. The design of the through holes 8 is as follows: φ3mm through holes 8 are evenly opened on the surface of the eggshell groove 7 (10-15 holes per groove), with a hole spacing of 10mm, to ensure that the cleaning liquid (water + food-grade cleaning agent) can penetrate to the egg surface without any blind spots in cleaning.

[0032] like Figure 1 As shown, a filter screen 19 and a filter element 18 are installed below the slide bar 12 on the inner surface of the cleaning tank 1. The filter screen 19 (e.g., a 100-mesh stainless steel mesh, tilted at 10°) is installed at an angle at the bottom of the cleaning tank 1 to intercept large particles of dirt such as eggshell fragments and chicken feathers. Below the filter screen 19, a filter element 18 (e.g., an activated carbon + PP cotton composite filter element 18, 200×100×50mm) is installed to further filter oil and microorganisms. The circulation path is as follows: the wastewater after cleaning passes through the filter screen 19 → filter element 18 → water pump 13 → circulation pipe 14 → spray pipe 16 → spray nozzle 17, forming a closed loop and improving water recycling efficiency. Water purification: the combination of the filter screen 19 and filter element 18 reduces the turbidity of the circulating water from 100 NTU to below 10 NTU, preventing secondary contamination of the eggs (improving cleanliness retention). Environmental protection and energy saving: it reduces wastewater discharge, lowers wastewater treatment costs, and meets food processing environmental standards.

[0033] like Figure 1 As shown, water pumps 13 are symmetrically installed on both sides of the surface of the cleaning tank 1. The water pumps 13 are connected to the spray pipe 16 and the bottom area inside the cleaning tank 1 through the circulation pipe 14. The circulation system is as follows: water pumps 13 (e.g., power 750W, flow rate 15L / min) are installed on both sides of the cleaning tank 1. The water inlet is connected to the bottom of the cleaning tank 1 through the circulation pipe 14 (through the filter screen 19 (100 mesh) and the filter element 18 (activated carbon + PP cotton)). The water outlet is connected to the spray pipe 16, forming a "cleaning-filtration-circulation" closed loop.

[0034] like Figure 1 As shown, a control panel is installed on one side of the cleaning tank 1. The control panel is a PLC control panel (with a touch screen) installed on one side of the cleaning tank 1. The cleaning program can be set (e.g., immersion for 30s → spraying for 60s → ultrasonic cleaning for 120s → spraying for 30s → lifting), and the operating status of cylinder 3, water pump 13, and ultrasonic generator 15 can be displayed in real time. Program linkage: The control panel can automatically control the sequential operation of each component (e.g., start spraying after the liquid level reaches the standard, and start ultrasonic cleaning after the spraying ends) by receiving feedback signals from sensors (liquid level sensor, pressure sensor, not shown, which can be set by personnel) without manual intervention.

[0035] like Figure 1 , Figure 2 and Figure 4As shown, the eggshell groove 7 is adapted to the structure at both ends of the eggshell. Eggshell grooves 7 (e.g., hemispherical, radius 25-30mm, adaptable to the large end (35mm) and small end (25mm) of the egg, with internal padding such as silicone to reduce contact damage) are machined on the opposing surfaces of the moving plate 6 and the fixed plate 9. The spacing between adjacent eggshell grooves 7 is 50mm to prevent egg contact and collision. Positioning holes 5 and fasteners: Positioning holes 5 (e.g., φ8mm, spacing 20mm) are opened on the surfaces of the slider 10, fixed plate 9, and adjusting groove 11. The moving plate 6 is locked in place using M8 hand-tightening bolts (adjustment range 0-50mm) to accommodate chickens of different sizes. Egg (weight 50-70g); Egg fixing precision: The fit between the eggshell groove 7 and both ends of the egg is ≥90%, and it is pressed together with the moving plate 6 (pressure 0.5-1N), so that the egg is suspended and fixed (without hard contact with the groove wall), reducing the shaking amplitude during cleaning (avoiding collision and breakage); Non-destructive fixing: The hemispherical eggshell groove 7 + flexible pressing (pressure is controlled by adjusting the distance of the moving plate 6) reduces the egg breakage rate compared to traditional brush cleaning, and increases the intact rate by 98%; Versatility: The 0-50mm adjustment range can be adapted to 90% of commercial eggs (50-70g), without the need to change the mold, and is suitable for scenarios from home to small egg processing plants.

[0036] like Figure 1 and Figure 2As shown, positioning holes 5 are provided on the surface of slider 10, the surface of fixed plate 9, and the inside of adjustment groove 11, and the positioning holes 5 are fixed together by fasteners; Loading and fixing: According to the size of the egg, adjust the position of moving plate 6 (locked by positioning hole 5), put the egg into the eggshell groove 7 of fixed plate 9 (large end down), move moving plate 6 so that eggshell groove 7 covers the small end of egg, tighten the positioning hole 5 bolts to fix it, and ensure that the egg is not loose; Automatic cleaning: Start the program on the control panel, cylinder 3 drives fixed plate 9 to descend, the egg is completely immersed in the cleaning solution (liquid level is 10mm above the top of the egg), let stand for 30s to soften dirt, water pump 13 starts, clean water is sprayed obliquely from nozzle 17 through circulation pipe 14 (pressure 0.2MPa), water flow washes the egg surface through through hole 8 and open area, carrying away softened dirt (60s), spraying stops, ultrasonic generator 15 starts (40kHz), removes tiny dirt and fine particles through cavitation effect. The process involves a 120-second initial spray followed by a 30-second secondary spray to rinse away residual dirt. Then, cylinder 3 drives the fixed plate 9 to rise to its initial position, completing the cleaning process. For unloading and cleaning: loosen the bolts in the positioning hole 5, raise the moving plate 6, and remove the cleaned eggs. Regularly clean the filter screen 19 and replace the filter element 18 (e.g., once every 100 batches) to ensure the normal operation of the circulation system. Cleaning quality: Multiple cleaning processes improve the removal rate of dirt from the egg surface and reduce the total bacterial count, ensuring compliance with food safety requirements. Economic benefits: Reduced breakage rate effectively reduces economic losses; water recycling saves water costs and lowers cleaning costs. Applicable scenarios: From home-made products to small egg processing plants, especially suitable for scenarios requiring high egg integrity (e.g., supermarket premium eggs, gift box eggs). Through the synergy of non-destructive fixing, multiple cleaning processes, and automatic control, this device achieves integrated "high efficiency, non-destructive, and clean" egg cleaning, solving the problems of high breakage rate and unstable quality associated with traditional cleaning methods.

[0037] Working Principle: In actual use, personnel can adjust the distance between the movable plate 6 and the fixed plate 9 by lifting the movable plate 6. Then, the eggs to be cleaned are placed on the fixed plate 9, with the bottom of the eggs positioned in the eggshell grooves 7 on the fixed plate 9. Next, the movable plate 6 is lowered again, so that the eggshell grooves 7 on the surface of the movable plate 6 are positioned at the top of the eggs. The two sets of eggshell grooves 7 in different positions can limit the eggs, preventing them from moving or coming into contact with other eggs during subsequent cleaning, thus ensuring the integrity of the eggs. After the movable plate 6 has moved, it can be locked by fasteners and positioning holes 5 to improve the stability of the structure. Then, the operation of the cylinder 3 drives the lifting rod 4 to push out, thereby pushing the fixed plate 9 down along the sliding rod 12. At this time, the eggs can be immersed in the liquid and left to stand for a certain period of time to soften the dirt on the surface of the eggshells. Then, the operation of the water pump 13 drives the filtered liquid at the bottom of the tank to be introduced into the spray pipe 16 through the circulation pipe 14. The liquid is sprayed through nozzles 17 on the surface of the spray pipe 16, causing the internal liquid to convect. This allows the liquid to flow onto the eggshell, gently washing away softened dirt. The liquid can be circulated from both sides or from one side first, then the other, further improving the cleaning effect. After the liquid convects, ultrasonic waves generated by the ultrasonic generator 15 are used to clean the eggs, removing smaller dirt particles and enhancing the overall cleaning effect. Throughout the cleaning process, no hard objects come into contact with the eggs, maintaining a gentle environment and minimizing damage, thus ensuring the eggs' integrity and facilitating subsequent sales. After cleaning, the eggs can be dried or the liquid inside the container can be removed before refilling for further processing. The device offers advantages such as multiple cleaning cycles, excellent cleaning effect, and minimal damage.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for cleaning the surface of an eggshell, comprising a cleaning tank (1) and a spray head (17), characterized in that, The top of the cleaning tank (1) is symmetrically welded with a bearing plate (2) at the middle position on both sides. A slide rod (12) is installed between the bottom of the bearing plate (2) and the inner surface of the cleaning tank (1). A fixed plate (9) is slidably connected to the outer periphery of the slide rod (12). Adjustment grooves (11) are symmetrically opened on both sides of the inner surface of the fixed plate (9). A slider (10) is slidably connected inside the adjustment groove (11). A moving plate (6) is installed between the sliders (10). Several sets of eggshell grooves (7) are opened at the bottom of the moving plate (6) and the top of the fixed plate (9). Water spray pipes (16) are symmetrically installed on both sides of the slide rod (12) at the inner surface of the cleaning tank (1). Several sets of nozzles (17) are evenly installed on the surface of the water spray pipes (16). An ultrasonic generator (15) is installed below the water spray pipes (16) at the inner surface of the cleaning tank (1).

2. A device for cleaning the surface of an egg according to claim 1, wherein A cylinder (3) is installed at the top of the bearing plate (2) on one side. The cylinder (3) is connected to a lifting rod (4) at its telescopic end. One end of the lifting rod (4) passes through one side of the bearing plate (2) and is connected to the top of the fixed plate (9).

3. The eggshell cleaning device according to claim 1, characterized in that, The eggshell groove (7) has several sets of through holes (8) evenly distributed on its surface.

4. The eggshell cleaning device according to claim 1, characterized in that, A filter screen (19) and a filter element (18) are respectively installed below the slide bar (12) on the inner surface of the cleaning tank (1).

5. The eggshell cleaning device according to claim 1, characterized in that, Water pumps (13) are symmetrically installed on both sides of the cleaning tank (1). The water pumps (13) are connected to the spray pipe (16) and the bottom area inside the cleaning tank (1) through the circulation pipe (14).

6. The eggshell cleaning device according to claim 1, characterized in that, The cleaning tank (1) has a control panel on one side.

7. The eggshell cleaning device according to claim 1, characterized in that, The eggshell groove (7) structure is adapted to the structure at both ends of the eggshell.

8. The eggshell cleaning device according to claim 1, characterized in that, The slider (10), the fixing plate (9), and the adjustment groove (11) are all provided with positioning holes (5), and the positioning holes (5) are fixed together by fasteners.

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