Ice making structure of snowflake ice maker

Abstract

The invention relates to the technical field of snowflake ice makers, in particular to an ice making structure of a snowflake ice maker, the ice making structure comprises a barrel, a fixing frame rotatably arranged in the barrel, an ice shoveling knife and a material distributing assembly, the two ends of the barrel are open, the upper opening is a feeding port, the lower opening is a discharging port, and the material distributing assembly is rotatably arranged between the upper opening and the lower opening; the ice shoveling knife and the material distributing assembly are both fixed on the fixing frame, and are both arranged corresponding to the inner wall of the barrel body; the fixing frame can be driven by the rotating shaft and drives the ice shoveling knife and the material distributing assembly to rotate in the barrel. According to the ice making structure of the snowflake ice maker, through the matched design of the barrel, the fixing frame, the ice shoveling knife and the material distributing assembly, a sealing structure is basically removed, and meanwhile the material distributing uniformity and the ice shoveling efficiency are improved through cooperative work of the material distributing assembly and the ice shoveling knife.

Description

Technical Field

[0001] This invention relates to the field of shaved ice machine technology, and specifically to an ice-making structure for a shaved ice machine. Background Technology

[0002] Snow scraping machines are currently available on the market. Their main structure includes a scraping system composed of a stainless steel roller, drive motor, ingredient dispenser, and ice scraper, as well as components such as a compressor and condenser. The roller has a stainless steel cavity structure, and its interior is connected to the refrigeration system. The lower part of its outer surface is immersed in the ingredient dispenser, and a fixed ice scraper is attached to its front side.

[0003] The connection structure between the drum, shaft, liquid inlet pipe, and gas return pipe is very complex. For example, Chinese utility model patent with authorization announcement number CN222048157U discloses an improved rotary evaporator for a snow ice machine, which includes a drum with a drive shaft on one side. A right end cover is welded to the side of the drum away from the drive shaft. The right end cover has a connection hole. A sealing seat passes through the connection hole and is welded to the right end cover. A central shaft tube is inserted into the sealing seat, and a first sealing ring is abutted between the two. When the drum is filled with pressurized refrigerant, the pressurized refrigerant causes the central shaft tube to press tightly against the sealing seat and the first sealing ring.

[0004] The aforementioned existing technology has the following disadvantages: 1. The refrigerant pressure inside the drum is relatively high, the drive motor connected to the outside of the drum needs to rotate, and the sealing at the drum shaft is very difficult.

[0005] To address the aforementioned issues, existing technologies urgently need improvement. Summary of the Invention

[0006] The purpose of this invention is to provide an ice-making structure for a snow ice machine, which has the advantages of simple structure, virtually no need for sealing, and excellent ice-making effect.

[0007] This invention provides an ice-making structure for a slush ice machine, including a cylinder, a fixed frame rotatably disposed within the cylinder, an ice scraper, and a dispensing assembly. The cylinder has openings at both ends, with the upper opening serving as an inlet and the lower opening as a outlet. The dispensing assembly is rotatably disposed between the upper and lower openings. Both the ice scraper and the dispensing assembly are fixed to the fixed frame and are correspondingly positioned to the inner wall of the cylinder. The fixed frame is driven by a rotating shaft, which in turn drives the ice scraper and the dispensing assembly to rotate within the cylinder. A refrigeration evaporation pipe is provided on the cylinder.

[0008] Furthermore, the present invention also mentions that the material distribution assembly includes a material distribution plate, the ice scraper and the material distribution plate are fixed on the fixed frame, and the ice scraper and the material distribution plate are arranged at an angle in the circumferential direction of the fixed frame.

[0009] Furthermore, the present invention also mentions that the blade of the ice scraper is attached to the inner wall of the cylinder, and the outer edge of the material distribution plate is attached to the inner wall of the cylinder.

[0010] Furthermore, the present invention also mentions that the material dispensing component includes a receiving tray, which is fixed to the upper part of the fixed frame, and the ice scraper and the dispensing plate are fixed to the lower part of the fixed frame; the receiving tray is provided with a plurality of guide holes, which are correspondingly arranged with the dispensing plate.

[0011] Furthermore, the present invention also mentions that the material distribution plate is provided with a plurality of guide grooves, the inlets of the plurality of guide grooves correspond to a plurality of guide holes, and the outlets of the plurality of guide grooves correspond to the inner wall of the cylinder.

[0012] Furthermore, the present invention also mentions that the height of the ice scraper is equal to or greater than the height of the dividing plate.

[0013] Furthermore, the present invention also mentions that the mounting bracket has a mounting hole formed at the center of the rotating shaft for fixing and mounting the rotating shaft.

[0014] Furthermore, the present invention also mentions that the wall of the cylinder is formed by splicing an outer shell and an inner shell, with a gap between the outer shell and the inner shell, and the refrigeration evaporation tube is disposed in the gap.

[0015] Furthermore, the present invention also mentions that the refrigeration evaporator tube is spirally wound around the outer wall of the inner shell.

[0016] Furthermore, the present invention also mentions that heat-insulating foam is provided in the gap between the refrigeration evaporator tube and the inner wall of the outer shell.

[0017] As can be seen from the above, the ice-making structure of the snow ice machine provided by the present invention, through the coordinated design of the cylinder, the fixed frame, the ice scraper and the dispensing component, basically eliminates the sealing structure. At the same time, the dispensing component and the ice scraper work together to improve the uniformity of dispensing and the efficiency of ice scraping. It has the advantages of simple structure and excellent ice-making effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall external structure of the present invention;

[0019] Figure 2 yes Figure 1 Schematic diagram of the sectional structure of the middle AA section;

[0020] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure of the middle BB.

[0021] In the picture:

[0022] 1. Cylinder; 11. Outer shell; 12. Inner shell; 13. Top opening; 14. Bottom opening; 15. Gap; 2. Material distribution assembly; 21. Receiving tray; 22. Flow guide hole; 23. Material distribution plate; 24. Flow guide groove; 3. Rotating shaft; 4. Fixing frame; 5. Refrigeration evaporator tube; 6. Ice scraper. Detailed Implementation

[0023] The technical solution of the present invention will be described below with reference to the accompanying drawings and embodiments.

[0024] In existing technologies, shaved ice machines generally employ a stainless steel drum structure internally filled with refrigerant. The refrigerant pressure results in extremely high requirements for the shaft seal. Over time, the seals are prone to wear, leading to refrigerant leaks, increased maintenance costs, and a shortened equipment lifespan. For example, in continuous ice-making scenarios in the catering industry, frequent start-ups and shutdowns accelerate seal failure, significantly increasing the equipment failure rate and impacting normal operation.

[0025] To address these issues, researchers discovered that the root cause of the shaft seal failure lay in the rotating components bearing high-pressure refrigerant. Analysis revealed that separating the refrigeration system from the rotating mechanism, keeping the cylinder stationary and allowing only the internal components to rotate, eliminated the need for a pressure seal at the shaft. Based on this approach, the ice-making structure was redesigned, transferring the refrigeration function to the stationary cylinder. The rotating components only perform ice scraping and dispensing functions, thereby reducing the sealing requirements.

[0026] like Figure 1-3 As shown, this invention proposes an ice-making structure including a cylinder 1, a fixed frame 4 rotatably disposed within the cylinder 1, an ice scraper 6, and a dispensing assembly 2. The cylinder 1 has an upper opening 13 and a lower opening 14 at both ends, and the dispensing assembly 2 is disposed between the upper opening 13 and the lower opening 14. The ice scraper 6 and the dispensing assembly 3 are fixed to the rotatable fixed frame 4, and both correspond to the inner wall of the cylinder 1. The fixed frame 4 is driven to rotate by a rotating shaft 3, and a refrigeration evaporator pipe 5 is disposed on the cylinder 1.

[0027] The cylinder 1 adopts a double-opening through-type structure, with the upper opening 13 serving as the liquid material inlet and the lower opening 14 as the flake ice outlet, forming a continuous material channel. The fixed frame 4 serves as a rotating carrier and can be a stainless steel frame structure for component positioning. The ice scraper 6 and the material distribution component 2 are staggered in the circumferential direction, for example, at a 90-degree angle, to ensure that the ice scraping and material distribution processes are carried out in an orderly manner. The refrigeration evaporator 5 preferably has a spiral coil structure, which fits tightly against the outer wall of the cylinder 1 to achieve uniform cooling. The rotating shaft 3 is connected to the end cap of the cylinder 1 through a bearing, transmitting only torque without the need for a sealed high-pressure medium.

[0028] Specifically, the refrigeration evaporator 5 cools the inner wall of the stationary cylinder 1, causing it to freeze. As the fixed frame 4 rotates, the distribution assembly 2 evenly spreads the material onto the inner wall surface of the cylinder 1, and the ice scraper 6 then peels the ice layer into snowflake-like ice crystals. Since the cylinder 1 does not participate in the rotation, the refrigeration system is completely separated from the moving parts. The rotating shaft 3 only requires a conventional dynamic seal, such as a lip seal, and does not need to withstand refrigerant pressure. After entering through the upper opening 13, the material is distributed along the flow path of the distribution assembly 2, and the ice crystals are broken by the ice scraper 6 and discharged from the lower opening 14.

[0029] Existing solutions involve filling the rotating drum with high-pressure refrigerant, requiring a double-sealed shaft. This invention, through an innovative layout where the drum 1 is stationary while the internal components rotate, physically isolates the refrigeration system from the mechanical transmission system. The operating pressure of the rotating shaft 3, with its sealed structure (or even completely unsealed), is reduced from over 2MPa in traditional solutions to atmospheric pressure, extending the lifespan of the seals by more than three times. The split design also avoids interference between the refrigerant circulation system and the rotating mechanism.

[0030] Through the above technical solution, this invention effectively solves the high-pressure sealing problem of the rotating shaft 3, significantly reducing the precision requirements for parts machining and the frequency of seal replacement. The external design of the refrigeration system makes equipment maintenance more convenient, and the cylinder 1 can be maintained independently for the insulation layer without affecting the transmission system. After the overall structure is simplified, the manufacturing cost is reduced by about 40%, and the continuous operating time of the equipment is increased to more than 2000 hours without damage.

[0031] The present invention further proposes that the material distribution component 2 includes a material distribution plate 23, an ice scraper 6 and the material distribution plate 23 are fixed on a fixed frame 4, and the ice scraper 6 and the material distribution plate 23 are arranged at an angle in the circumferential direction of the fixed frame 4.

[0032] The material distribution plate 23 refers to a plate-like structure with a flow guiding function, which can be implemented using a metal plate with flow guiding grooves 24 on its surface, used to evenly distribute the material to the refrigeration area on the inner wall of the cylinder 1. The ice scraper 6 refers to a blade with a cutting edge, which can be made of thin stainless steel sheet, used to scrape the ice layer formed on the inner wall of the cylinder. The angle setting refers to the non-zero angle formed between the material distribution plate and the ice scraper in the circumferential direction of the fixed frame, which can be achieved within an angle range of 30 degrees to 150 degrees, used to stagger the working areas of the two.

[0033] Specifically, the distribution plate 23 and the ice scraper 6 are rigidly connected and fixed to the rotating frame 4. During rotation, the distribution plate 23 preferentially contacts the material and guides it to the cooling zone on the inner wall of the cylinder. Subsequently, the ice scraper 6 scrapes the solidified ice layer at an offset angle. The guiding effect of the distribution plate 23 makes the ice layer thickness more uniform and reduces the resistance of each scraping by the ice scraper 6. The angle setting of the two creates a spatial misalignment, avoiding interference between the distribution plate 23 and the ice scraper 6 on the rotation trajectory. At the same time, the rotational torque is decomposed by the phase difference, reducing the vibration of the frame 4 during rotation. This invention achieves the separation of the timing of material distribution and ice scraping through angle setting. The distribution plate 23 completes the material distribution in advance, and the ice scraper 6 then performs low-resistance scraping, while dispersing the pressure of the rotational torque on the sealing structure.

[0034] The present invention further proposes that the blade of the ice scraper 6 is attached to the inner wall of the cylinder 1, and the outer edge of the material distribution plate 23 is attached to the inner wall of the cylinder 1.

[0035] The ice scraper 6 has its blade edge against the inner wall of the cylinder, meaning the blade maintains zero-gap contact with the refrigeration surface. The blade edge can be made of elastic metal material, and the rotation of the fixing frame 4 causes the blade to continuously scrape the inner wall surface. This feature directly affects the ice removal process, avoiding the impact of residual ice on refrigeration efficiency found in traditional structures. The outer edge of the distribution plate 23 is against the inner wall of the cylinder 1, meaning the edge of the distribution plate 23 forms a closed contact with the inner wall. The edge of the distribution plate 23 can be made of wear-resistant engineering plastic, and the rotation of the fixing frame 4 pushes the material to move in a directional manner. This feature forcibly guides the material distribution path, eliminating material accumulation caused by gaps between the inner wall of the cylinder 1 and the distribution plate 23.

[0036] Specifically, during the rotation of the fixed frame 4, the ice scraper 6 contacts the inner surface of the refrigeration unit with constant pressure, completely peeling off the frozen ice layer. Simultaneously, the distribution plate 23 rotates, and the closed space formed by its edge contact evenly guides the liquid material into the refrigeration area. The synchronized actions of both create a continuous working cycle: after the ice scraper 6 peels off the ice layer, the distribution plate 23 immediately pushes new material onto the clean refrigeration surface. This collaborative working mechanism eliminates material residue caused by component gaps in traditional structures, thereby reducing the pressure dependence on the rotating shaft sealing structure.

[0037] The present invention further proposes that the material distribution component 2 includes a receiving tray 21, which is fixed to the upper part of the fixed frame. The ice scraper 6 and the material distribution plate 23 are fixed to the lower part of the fixed frame. The receiving tray 21 is provided with a plurality of guide holes 22, which are correspondingly arranged with the material distribution plate 23.

[0038] The receiving tray 21 is a disc-shaped structure located on top of the fixed frame 4, which can be implemented using an annular metal plate, and is used to receive materials entering from the inlet. The guide hole 22 is a through hole on the receiving tray 21, used to evenly guide the material to the distribution plate 23. The distribution plate 23 is a plate-shaped structure fixed in the lower part of the fixed frame, which can be implemented using an arc-shaped stainless steel plate matching the curvature of the inner wall of the cylinder 1, and is used for secondary distribution of the material output from the guide hole 22.

[0039] Specifically, after the material falls into the receiving tray 21 through the inlet, it is guided by the centrifugal force generated by the rotation of the fixed frame, forming multiple directional material flows through the guide holes 22. The position of the guide holes 22 corresponds to the distribution angle of the distribution plates 23, ensuring that each material flow accurately falls into the working area of ​​the distribution plates 23. The distribution plates 23 and the ice scraper 6 are arranged in a staggered manner in the lower part of the fixed frame. The distribution plates 23 first evenly spread the material on the inner wall surface of the cylinder 1, and then the ice scraper 6 continuously scrapes the ice layer attached to the inner wall. The receiving tray 21 and the distribution plates 23 are rigidly connected by the fixed frame 4, and the material guidance, distribution and ice layer treatment operations are completed simultaneously during the rotation.

[0040] The present invention further proposes that the material distribution plate 23 is provided with a plurality of guide grooves 24, the inlets of the plurality of guide grooves 24 correspond to a plurality of guide holes 22, and the outlets of the plurality of guide grooves 24 correspond to the inner wall of the cylinder.

[0041] The guide channel 24 refers to a groove structure extending along the surface of the distribution plate 23. It can be formed by stamping or milling. Its inlet end matches the guide hole 22 of the receiving tray 21, and its outlet end extends to the inner wall surface of the cylinder 1. The cross-sectional shape of the guide channel 24 can be U-shaped, V-shaped, or other regular geometric shapes, and its depth and width can be adjusted according to the flowability of the raw material.

[0042] Specifically, when the fixed frame 4 rotates the distribution plate 23, the raw material in the receiving tray 21 enters the inlet of the guide channel 24 through the guide hole 22, and is then directionally conveyed to the inner wall surface of the cylinder 1 along the extension path of the guide channel 24. The outlet end of the guide channel 24 is close to the inner wall of the cylinder, so that the raw material directly covers the area corresponding to the refrigeration evaporator tube. Through the path constraint of the guide channel 24, the movement trajectory of the raw material between the distribution plate 23 and the inner wall of the cylinder 1 is precisely controlled, avoiding local accumulation or displacement caused by free flow. The extension angle and length of the guide channel 24 can be adjusted according to the cylinder diameter to ensure that the raw material is evenly distributed in the refrigeration area of ​​the inner wall of the cylinder 1.

[0043] The present invention further proposes that the height of the ice scraper 6 is equal to or greater than the height of the material distribution plate 23.

[0044] The height of the ice scraper 6 refers to the length of the blade along the axial direction of the cylinder body. It can be manufactured using a metal stamping process, and its blade is in contact with the inner wall of the cylinder body 1 to achieve the ice removal function. The height of the material distribution plate 23 refers to the axial extension range of the material guiding structure in the cylinder body 1. It can be manufactured using an injection molding process, and its edge is fitted with the inner wall of the cylinder body 1 to form a material distribution channel.

[0045] Specifically, during the rotation of the fixed frame 4, when the height of the ice scraper blade 6 is equal to that of the distribution plate, their axial coverage areas completely overlap. At this point, the centrifugal force generated by the rotation causes ice removal and material diversion to act synchronously in the same working area. When the height of the ice scraper blade 6 exceeds that of the distribution plate 23, an axial extension section is formed at the front end of the blade. This extension section completes the ice removal in front of the working area of ​​the distribution plate 23, preventing residual ice from obstructing the flow path of the distribution plate 23. During the rotation, the ice scraper blade 6 always prioritizes contact with the inner wall of the cylinder, ensuring that the ice removal action is completed before the material diversion process.

[0046] The present invention further proposes that the mounting bracket 4 has mounting holes formed at the center of the rotating shaft for fixing and mounting the rotating shaft 3.

[0047] The mounting hole refers to a through-hole structure that matches the shape of the rotating shaft. Specifically, it can be precision-machined directly at the axis of the fixing bracket 4, and a rigid connection between the rotating shaft 3 and the fixing bracket 4 is achieved through interference fit or key connection. This feature reduces fitting errors caused by the assembly process by eliminating the split connection structure.

[0048] Fixed installation refers to a non-movable assembly relationship between the rotating shaft 3 and the mounting hole, which can be achieved through thermoforming or chemical bonding processes. This feature eliminates intermediate components such as flanges and fastening bolts required for traditional split connections, thus avoiding the risk of refrigerant leakage at the connection point.

[0049] Specifically, during the casting or machining of the fixed bracket 4, a mounting hole is simultaneously machined at the center of the rotating shaft using a CNC machine tool. The inner diameter tolerance of this hole is controlled within ±0.01 mm. When the rotating shaft 3 is pressed into the mounting hole, the shaft-hole mating surface forms a full circumferential contact, ensuring that the coaxiality error between the rotating shaft 3 and the fixed bracket 4 does not exceed 0.05 mm. This integrated connection method allows the driving torque to be transmitted directly through the shaft-hole contact surface, eliminating the need for locating pins and gaskets required by traditional flange connections.

[0050] The present invention further proposes that the wall of the cylinder 1 is formed by splicing an outer shell 11 and an inner shell 12, with a gap 15 provided between the outer shell 11 and the inner shell 12, and the refrigeration evaporation tube 5 is provided in the gap 15.

[0051] The outer shell 11 refers to the shell structure that wraps around the inner shell 12. It can be made of stamped metal and serves as an external support structure to insulate against external heat. The inner shell 12 is the inner layer structure of the cylinder 1 that is in direct contact with the material. It can be made of a metal material with good thermal conductivity and is used to transfer cold energy to the interior of the cylinder 1. The gap 15 is the cavity between the outer shell 11 and the inner shell 12, which can be formed by adjusting the assembly spacing of the inner and outer shells. It is used to accommodate the refrigeration evaporator pipe 5 and reduce heat conduction loss. The refrigeration evaporator pipe 5 is the pipeline that transports refrigerant. It can be made of copper or aluminum pipe bent into a spiral shape and is used to cool the inner wall of the cylinder 1 through phase change heat absorption.

[0052] Specifically, the outer shell 11 and the inner shell 12 are mechanically connected to form a double-shell structure, with the gap 15 between them serving as the installation space for the refrigeration evaporator 5. The refrigeration evaporator 5 is fixed to the outer surface of the inner shell 12, achieving heat transfer through direct contact with the outer wall of the inner shell 12. Since the refrigerant circulates only within the static gap and does not need to enter the interior of the rotating parts, a high-pressure sealing structure is not required between the rotating shaft 3 and the cylinder 1. During rotation, the inner shell 12 only needs to be linked with the fixing frame 4 and the ice scraper 6, while the outer shell 11 remains stationary, thus physically isolating the refrigeration system from the drive system.

[0053] The present invention further proposes that the refrigeration evaporator tube 5 is spirally wound around the outer wall of the inner shell 12.

[0054] The spiral winding refers to the refrigeration evaporator tube 5 extending along the outer surface of the inner shell 12 in a continuously rotating path. Specifically, it can be achieved by bending copper or aluminum tubes into a spiral shape with equal pitch. This shape allows the refrigeration evaporator tube 5 to form a stable surface contact with the outer wall of the inner shell 12.

[0055] Specifically, the refrigeration evaporator tube 5 is arranged in a spiral pattern covering the axial length of the outer wall of the inner shell 12, which significantly increases the contact area between the refrigeration evaporator tube 5 and the inner shell 12 compared to a straight arrangement.

[0056] In some specific embodiments, the helical pitch of the refrigeration evaporator tube 5 can be set to 10 mm to 50 mm, and the number of helical turns can be adjusted according to the axial length of the inner shell 12. For example, a 30-turn helical structure can be used when the height of the inner shell is 300 mm. An annular groove can be machined on the outer wall surface of the inner shell 12, and the helical evaporator tube is embedded in the groove to enhance contact stability.

[0057] The present invention further proposes to place heat-insulating foam in the gap 5 between the refrigeration evaporator tube 5 and the inner wall of the outer shell 11.

[0058] Among them, the thermal insulation foam refers to the porous thermal insulation material filling the gaps, which can be made of polyurethane foam, blocking the heat transfer path through the closed pore structure. The gap refers to the annular cavity formed by splicing the outer shell and the inner shell, which can be achieved by leaving a certain distance in the double shell structure, to accommodate the refrigeration evaporator pipe 5 and the thermal insulation material.

[0059] Specifically, the evaporator tube 5 is spirally wound around the outer wall of the inner shell, and the gap 15 formed between the outer and inner shells is completely filled with insulating foam. Because the insulating foam contains numerous closed pores, it effectively isolates the heat conduction between the evaporator tube 5 and the outer shell 11, while also blocking convective heat loss caused by airflow. During operation, the cooling capacity acts directly on the interior of the cylinder 1 through the inner shell, reducing loss to the external environment and thus improving refrigeration efficiency. The refrigeration system does not need to maintain excessively high pressure to achieve the required cooling effect, indirectly reducing the refrigerant pressure load at the shaft seal.

[0060] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these modifications are within the scope of protection of the present invention.

Claims

1. An ice-making structure for a snow ice machine, characterized in that: Includes a cylinder (1), a fixed frame (4) rotatably disposed inside the cylinder (1), an ice scraper (6), and a material dispensing assembly (2). The cylinder (1) has openings at both ends, with the upper opening (13) being the inlet and the lower opening (14) being the outlet. The material distribution component (2) is rotatably disposed between the upper opening (13) and the lower opening (14). The ice scraper (6) and the material distribution assembly (2) are both fixed on the fixed frame (4), and the ice scraper (6) and the material distribution assembly (2) are both arranged corresponding to the inner wall of the cylinder (1); The fixed frame (4) can be driven by the rotating shaft (3) and drive the ice scraper (6) and the material distribution assembly (2) to rotate inside the cylinder (1); The cylinder (1) is provided with a refrigeration evaporation pipe (5).

2. The ice-making structure of a snow ice machine according to claim 1, characterized in that: The material distribution assembly (2) includes a material distribution plate (23). The ice scraper (6) and the material distribution plate (23) are fixed on the fixed frame (4), and the ice scraper (6) and the material distribution plate (23) are set at an angle in the circumferential direction of the fixed frame (4).

3. The ice-making structure of a snow ice machine according to claim 2, characterized in that: The blade of the ice scraper (6) is attached to the inner wall of the cylinder (1), and the outer edge of the material distribution plate (23) is attached to the inner wall of the cylinder (1).

4. The ice-making structure of a snow ice machine according to any one of claims 2-3, characterized in that: The material distribution component (2) includes a receiving tray (21), which is fixed to the upper part of the fixing frame (4), and the ice scraper (6) and the material distribution plate (23) are fixed to the lower part of the fixing frame (4); the receiving tray (21) is provided with a plurality of guide holes (22), and the plurality of guide holes (22) are correspondingly arranged with the material distribution plate (23).

5. The ice-making structure of a snow ice machine according to claim 4, characterized in that: The material distribution plate (23) is provided with a plurality of guide grooves (24), the inlets of the plurality of guide grooves (24) correspond to a plurality of guide holes (22), and the outlets of the plurality of guide grooves (24) correspond to the inner wall of the cylinder (1).

6. The ice-making structure of a snow ice machine according to claim 4, characterized in that: The height of the ice scraper (6) is equal to or greater than the height of the material distribution plate (23).

7. The ice-making structure of a snow ice machine according to claim 4, characterized in that: The mounting bracket (4) has mounting holes formed at the center of the rotating shaft for fixing and mounting the rotating shaft (3).

8. The ice-making structure of a snow ice machine according to claim 1, characterized in that: The wall of the cylinder (1) is formed by splicing an outer shell (11) and an inner shell (12), with a gap (15) between the outer shell (11) and the inner shell (12), and the refrigeration evaporation tube (5) is located in the gap (15).

9. The ice-making structure of a snow ice machine according to claim 8, characterized in that: The refrigeration evaporator tube (5) is spirally wound around the outer wall of the inner shell (12).

10. The ice-making structure of a snow ice machine according to claim 9, characterized in that: The gap (15) between the refrigeration evaporator tube (5) and the inner wall of the outer shell (11) is filled with heat-insulating foam.

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