A stirrer-guided pusher for propelling material

Abstract

This utility model relates to a stirring-guided scraping feeding device used in a snow melting machine. The device includes a horizontally oriented evaporator, with a material container shell surrounding the evaporator. A spiral stirring body is mounted on the outside of the evaporator within the material container shell. The spiral stirring body includes two or more ice-scraping strips axially distributed outside the evaporator. These ice-scraping strips are connected by spiral guide strips. The guide strips have gaps after assembly with the outer wall of the evaporator. The ice-scraping strips are designed with scraping edges that adhere to the outer wall of the evaporator. The spiral stirring body is coaxially and rotatably assembled relative to the evaporator. This device features a distributed design, with evenly distributed ice-scraping strips ensuring uniform force and fine ice scraping. The guide strips have multiple gaps, and the offset directions at the intersections with the ice-scraping strips are opposite, preventing ice crystal accumulation, ensuring uniform output, optimizing force distribution, and avoiding equipment deformation and damage.

Description

Technical Field

[0001] This utility model relates to the field of ice cream processing technology, specifically to a stirring-guided scraper feeding device. Background Technology

[0002] Early ice cream processing involved feeding the ice into the inner cylinder of a cylindrical evaporator. A coaxially rotating agitator and scraper were installed inside the evaporator, scraping away ice crystals formed on the inner cylinder wall through the outer edge of the agitator. This separated ice crystals prevented them from coalescing and growing larger, ultimately forming ice cream from the processed ice. Traditional internal agitator ice cream machines have their agitation concentrated inside the evaporator, creating many unsanitary areas where ice cream residue easily adheres, making cleaning inconvenient and ineffective. Furthermore, the internal agitation structure makes it impossible to clearly see the internal production process, accurately assess the ice crystal processing status, and produce ice cream that is either too hard or too soft, resulting in poor production quality. The internal agitation structure also makes it difficult to disassemble the fragile scraper and agitator components.

[0003] The patent for "Ice Cream Making Snow Melting Machine" (CN 202722423 U) discloses a structure for stirring and scraping ice on the outer wall of the evaporator. While this patented structure solves the problem of stirring and scraping ice inside the evaporator, the scraping process is completed through the inner side of a spiral stirrer. During this process, the spiral stirrer simultaneously bears the opposing forces of the inner side scraping ice and the spiral side pushing ice, resulting in high resistance and easy damage during use. Furthermore, the traditional spiral stirrer, integrated into the outer side of the evaporator, causes the scraped ice crystals to be continuously pushed forward. This leads to excessive ice crystal accumulation at the front end of the evaporator and spiral stirrer cavity, increasing the opposing force on the spiral stirrer, resulting in higher equipment power consumption and making the spiral stirrer more prone to deformation and damage. Additionally, existing spiral stirrers use a single spiral structure, which only scrapes the outer wall of the evaporator once per rotation, resulting in low scraping efficiency, larger ice crystals, less smooth ice cream, and greater scraping resistance.

[0004] In traditional spiral mixers, a gap is left between the spiral mixer and the inner wall of the container to prevent excessive final pushing force. This allows solid ice crystals to leak through the gap on the outside of the spiral mixer. However, these leaking ice crystals tend to accumulate and melt together, making the ice crystals larger and even condensing on the spiral mixer and the inner wall of the container, affecting the mixing effect of the ice crystals and increasing the working resistance of the spiral mixer. Utility Model Content

[0005] (I) Technical problem to be solved: In view of the shortcomings of the existing technology, this utility model provides a stirring-guided scraping and pushing device. Through the design of multiple ice scraping strips and spiral strips, the ice scraping and pushing are separated, and the force is more balanced and reasonable. At the same time, the spiral strip adopts a segmented deflection guide structure, which guides the ice crystals in different directions when the spiral stirrer rotates, preventing excessive accumulation of ice crystals at the front end.

[0006] (II) Technical Solution: To solve the above-mentioned technical problems, this utility model provides the following technical solution: A stirring-guided scraping feeding device, used in a snow melting machine, includes a horizontal cylindrical evaporator, the rear of which is mounted on a frame, the outside of which is wrapped with a material shell, and a spiral stirring body is mounted on the outside of the evaporator inside the material shell; the spiral stirring body includes two or more ice scraping strips distributed circumferentially on the outside of the evaporator, the different ice scraping strips are connected by a spiral guide strip, the guide strip has a gap after being assembled with the outer wall of the evaporator, the inner side of the ice scraping strip is designed with an inwardly protruding ice scraping edge attached to the outer wall of the evaporator, and the spiral stirring body is coaxially rotated relative to the evaporator.

[0007] Preferably, the ice scraper has a straight structure, is parallel to the central axis of the evaporator, is evenly distributed on the outer cylindrical surface of the evaporator, and the scraper edge extends obliquely towards the outer wall of the evaporator.

[0008] Preferably, there are two guide strips, which are spirally designed relative to the axis of the evaporator. The front part of the spiral stirring body is designed with a spiral front blade. The front blade is smoothly connected to the two guide strips as a whole. The middle of the front blade is designed with an assembly end. The middle of the evaporator is designed with a connecting shaft. The front end of the connecting shaft extends out of the evaporator and is fixedly connected to the assembly end of the front blade. The rear end of the connecting shaft is connected to the power module for transmission.

[0009] Preferably, the rear of the spiral stirring body is designed with a connecting ring connecting the rear ends of the ice scraper and the guide bar. The number of ice scrapers is 4, with two long ice scrapers evenly distributed relative to the evaporator axis and two short ice scrapers evenly distributed relative to the evaporator axis.

[0010] Preferably, the front edge of the front blade is straight, a central groove is machined in the middle of the front edge of the front blade, and an axially penetrating connecting hole is machined in the middle of the front blade, the connecting hole being fitted with the front end of the connecting shaft.

[0011] Preferably, the mounting end of the front blade extends toward one side of the evaporator, and after assembly, the rear part of the front blade has a gap with the front side of the evaporator.

[0012] Preferably, the guide bar rotates spirally around the outer edge of the front blade.

[0013] Preferably, the leading edge of the front blade is close to the front side of the material container, and the front part of the material container is designed with a discharge module, which is connected to the interior of the material container.

[0014] Preferably, the front end of the connecting shaft is designed with cutting surfaces at the top and bottom, and the connecting hole and the front end section of the connecting shaft are fitted with the same size for limiting assembly.

[0015] Preferably, the guide strip has a flat cross-section, and the two sides of the same guide strip at the intersection with the ice scraper are skewed in opposite directions, with one side inclined towards the inside of the spiral mixing body and the other side inclined towards the outside of the spiral mixing body. When the spiral mixing body rotates, the inward-inclined guide strip section pushes the ice crystals inward and forward, while the outward-inclined guide strip section pushes the ice crystals outward and forward. Preferably, the intersection of the ice scraper and the guide strip is designed with a smooth protrusion.

[0016] Preferably, the ice scraper has a strip-shaped mounting groove, the ice scraper edge is installed in the mounting groove, and the ice scraper and the ice scraper edge are made of different materials.

[0017] (III) Beneficial Effects: Compared with the prior art, this utility model provides a low thermal resistance cylindrical evaporator and its processing technology, which has the following beneficial effects:

[0018] 1. This stirring-guided scraping and feeding device utilizes a functionally differentiated design of the spiral agitator body. It employs specialized ice-scraping strips to scrape ice from the outer surface of the evaporator. Then, guide strips are used to agitate and feed the scraped ice. The spacing between the guide strips and the evaporator's outer surface allows the scraped ice crystals to leak out through the gaps between the upper and lower sections of the guide strips. This avoids the problem of traditional spiral agitators simultaneously scraping and pushing ice along the spiral edge. This decentralized design of the ice-scraping and pushing functions significantly optimizes the force distribution between ice scraping and spiral pushing, ensuring a more even distribution of force across the spiral agitator body throughout the ice crystal production process. This prevents the excessive resistance that can lead to deformation and damage in traditional spiral agitators.

[0019] 2. Furthermore, the design of multiple ice scraping strips evenly distributed on the outer cylindrical surface of the evaporator ensures that the ice scraping action is evenly distributed across the entire circumference. This results in a more even distribution of force on both the evaporator and the spiral mixing body, extending their service life. Additionally, the multiple ice scraping strips increase the strength of the spiral mixing body and significantly increase the number of times the spiral mixing body scrapes ice at the same location on the outer cylindrical surface of the evaporator per revolution. This results in finer ice crystals and a smoother texture for the ice cream.

[0020] 3. In this device, the guide strip has gaps on both the outer cylindrical surface of the evaporator and the inner wall of the container shell. This allows the ice crystals to leak out from both the top and bottom positions when the thrust on the guide strip is too great, avoiding unilateral force on the guide strip. Furthermore, the guide strip is designed with opposite offset positions on both sides of the intersection with the ice scraper. This allows the ice crystals to leak out from the gaps between the top and bottom of the ice scraper while the spiral stirring body is rotating and pushing the material. Thus, when the guide strip pushes the material forward, the ice crystals at the corresponding gaps between the top and bottom of the guide strip will be guided by different offset directions for each revolution of the spiral stirring body. This greatly prevents the accumulation and solidification of ice crystals and ensures uniform ice crystal discharge. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of a snow melting machine using a stirring-guided scraper feeding device;

[0022] Figure 2 A three-dimensional structural diagram of a stirring-guided scraper feeding device installed inside a snow melting machine;

[0023] Figure 3 A schematic diagram of the three-dimensional structure of the spiral stirring body;

[0024] Figure 4 A frontal structural diagram of a spiral agitator used between an evaporator and a material container.

[0025] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure along the AA direction;

[0026] Figure 6 for Figure 5 An enlarged structural schematic diagram of part B of Partial Embodiment 1;

[0027] Figure 7 This is a structural diagram showing the intersection of the ice scraper and the guide strip.

[0028] Figure 8 A schematic diagram of the structure guiding ice crystals when the guide bar works on both sides of the intersection with the ice scraper;

[0029] Figure 9 for Figure 5 An enlarged structural schematic diagram of part B of Partial Embodiment 2.

[0030] In the picture:

[0031] 1. Evaporator; 2. Container shell; 3. Stirring body; 31. Ice scraper; 311 Ice scraper edge; 312 Mounting groove; 32. Guide bar; 33. Connecting ring; 34. Front blade; 341. Assembly end; 342. Intermediate groove; 343. Connecting hole; 35. Protrusion. Detailed Implementation

[0032] 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 scope of protection of the present utility model. In the present utility model, the position relative to the discharge end of the snow melting machine is set as the front, and the fixed assembly end of the cylindrical evaporator is designed as the rear.

[0033] In this embodiment of the invention, the stirring-guided scraper feeding device is used in a snow melting machine, the external structure of which is as follows: Figure 1 As shown. The main frame structure of this device is the same as the corresponding part of a traditional snow melting machine; snow melting machines are now commercially available products, and their operating principles will not be described in detail here.

[0034] like Figure 2 As shown, this stirring-guided scraping and feeding device includes a horizontally oriented cylindrical evaporator 1. The rear of the evaporator 1 is mounted on the frame of the snow melting machine. The evaporator 1 is encased in a container shell 2, which holds the corresponding liquid for the ice cream to be processed. The outer surface of the evaporator 1 is used to condense the liquid inside the container shell 2 into ice. A spiral stirring body 3 is mounted on the outside of the evaporator 1 inside the container shell 2. The spiral stirring body 3 is driven by a power module to rotate, scraping ice crystals from the surface of the evaporator. Simultaneously, the spiral blade structure pushes the scraped ice crystals forward. This part of the structure is basically similar in function to traditional structures.

[0035] like Figure 2 , Figure 3 and Figure 4 As shown, the main structural improvement of this patent lies in that the spiral stirring body 3 includes two or more ice-scraping strips 31 circumferentially distributed outside the evaporator 1. The different ice-scraping strips 31 are connected by a spiral guide strip 32, and each ice-scraping strip 31 is designed with an ice-scraping edge 311 attached to the outer wall of the evaporator 1. The specific cross-sectional structure of the ice-scraping strips 31 and the ice-scraping edges 311 is as follows... Figure 5 and Figure 6As shown, in this embodiment, the ice scraper 31 and the ice scraper edge 311 are integrally formed using food-grade plastic. The guide strip 32 has a gap after being assembled with the outer wall of the evaporator 1, and the spiral stirring body 3 is coaxially rotated relative to the evaporator 1. The ice scraper edge 311 extends towards the surface of the evaporator 1 from the inner side of the ice scraper 31 near the evaporator 1. The inner side of the ice scraper 31 body, like the guide strip 32, also has a gap after being assembled with the outer wall of the evaporator 1. This creates a protruding edge 311 relative to the inner side of the guide strip 32, forming a protruding blade structure similar to a razor blade. This ensures that the ice scraper edge 311 can overcome greater ice scraping resistance, and the ice scraper 31 has a sharper ice scraping end relative to the cylindrical surface of the evaporator 1, resulting in better ice scraping performance.

[0036] Compared to the traditional spiral agitator structure of snow melting machines, this stirring-guided scraping and feeding device features a functionally differentiated design for the spiral agitator body 3. It utilizes a specialized ice scraper 31 to scrape ice from the outer surface of the evaporator 1, while the scraper 31 itself also functions as a reinforcing rib in a traditional spiral agitator. The guide strip 32 is specifically designed to agitate and feed the scraped ice. Furthermore, the spacing between the guide strip 32 and the outer surface of the evaporator 1 allows the scraped ice crystals to leak through the upper and lower gaps of the guide strip 32, avoiding the combined ice scraping and feeding process of traditional spiral agitators. This decentralized design of the ice scraping and feeding functions significantly optimizes the force distribution during ice scraping and spiral feeding, ensuring a more even distribution of force across the spiral agitator body throughout the ice crystal production process. This avoids the excessive resistance that can easily lead to deformation and damage in traditional spiral agitators.

[0037] In the specific design, such as Figure 3 and Figure 4 As shown, the ice scraper 31 has a straight structure, parallel to the central axis of the evaporator 1. The ice scraper edge 311 extends obliquely towards the outer wall of the evaporator 1, and the extension direction of the ice scraper edge 311 corresponds to the rotational movement direction of the ice scraper 31, just like the extension direction of the front blade of a razor. This makes the ice scraper 31 subjected to the most reasonable force and achieves the highest ice scraping efficiency. The ice scraper 31 is evenly distributed on the outer cylindrical surface of the evaporator 1.

[0038] The design of multiple straight ice scraping strips 31 evenly distributed on the outer cylindrical surface of the evaporator 1 ensures that the ice scraping action is evenly distributed across the entire circumference. This results in a more even distribution of force on both the evaporator 1 and the spiral stirring body 3, thus extending their service life. Furthermore, the multiple ice scraping strips 31 increase the strength of the spiral stirring body and significantly increase the number of times the spiral stirring body scrapes ice at the same position on the outer cylindrical surface of the evaporator 1 per revolution. This results in finer ice crystals and a smoother texture in the ice cream.

[0039] In this embodiment, as Figure 3 and Figure 4 As shown, there are two guide bars 32, which are spirally designed relative to the axis of the evaporator 1. This allows for more material pushing positions when the spiral stirring body 3 rotates compared to a single spiral blade, providing greater torque thrust. Under the same material pushing force, the double spiral pushing edge design requires a lower rotation speed of the spiral stirring body 3, resulting in better equipment stability. The two guide bars 32 can push material in symmetrical positions, making the overall force on the evaporator 1 more balanced.

[0040] The front of the spiral stirring body 3 is designed with a spiral-shaped front blade 34, which is smoothly connected to the two guide strips 32 as a single unit. The front blade 34 is a complete blade at the front of the spiral stirring body 3. While stirring and pushing the material, the front blade 34 also connects the guide strips 32 as a single unit, resulting in more even stirring force. The front blade 34 has a mounting end 341 in the middle, which is a cylindrical structure and coaxial with the evaporator 1. A connecting shaft 4 is designed along the central axis of the evaporator 1. The front end of the connecting shaft 4 extends out of the evaporator 1 and is fixedly connected to the mounting end 341 of the front blade 34. The rear end of the connecting shaft 4 is connected to the power module for transmission. The rear of the spiral stirring body 3 has a connecting ring 33 connecting the ice scraper 31 and the rear end of the guide strips 32. Figure 2 As shown, the connecting ring 33 serves as a connector, enhancing the strength of the spiral stirring body 3. At the same time, the connecting ring 33 of the spiral stirring body 3 is parallel to the assembly surface of the evaporator 1 of the snow melting machine, ensuring the assembly gap. The connecting ring 33 is coaxial with the evaporator 1, resulting in less rotational resistance.

[0041] In specific design, such as Figure 3 , Figure 4 and Figure 5 There are four ice scraper strips 31. Since there are two guide strips 32, the front end of each ice scraper strip 31 is connected to the rear end of the ice scraper strip 31. The evenly distributed ice scraper strips 31 are divided into two groups and connected to different positions of the guide strips 32, thus obtaining two long ice scraper strips 31 evenly distributed relative to the axis of the evaporator 1, and two short ice scraper strips 31 evenly distributed relative to the axis of the evaporator 1.

[0042] like Figure 3 and Figure 4As shown, the front edge of the front blade 34 is straight, and the front wall of the container shell 2 is vertical. The straight-shaped front blade 34 is parallel to the front surface of the container shell 2, which allows for a smaller gap between the two at the front, reducing the overall size of the equipment. In the specific design, a central groove 342 is machined in the middle of the front edge of the front blade 34. The central groove 342 connects the front and rear of the front blade. This allows the pressure at the front of the front blade 34 to flow into the previous feeding cycle through the central groove 342 during stirring and feeding, maintaining a balanced pressure at the ice cream outlet and preventing excessive local pressure at the outlet. The assembly end of the front blade 34 extends towards the evaporator 1, and after assembly, there is a gap between the rear of the front blade 34 and the front side of the evaporator 1. This further ensures the release of pressure at the rear of the ice cream. In this embodiment, the guide strip 32 rotates spirally around the outer edge of the front blade 34 for one revolution.

[0043] The spiral stirring body 3 is assembled with the evaporator 1 via the connecting shaft 4 in the following manner: an axially penetrating connecting hole 343 is machined in the middle of the front blade 34, and the connecting hole 343 is fitted with the front end of the connecting shaft 4 for limiting assembly. The front end of the connecting shaft 4 has cutting surfaces at the top and bottom, and the connecting hole 343 and the front end section of the connecting shaft 4 are fitted with the same size for limiting assembly.

[0044] like Figure 1 and Figure 2 As shown, the discharge structure of this patent is similar to that of a traditional snow melting machine. The front edge of the front blade is close to the front side of the material container. The front part of the material container is designed with a discharge module, which is connected to the inside of the material container.

[0045] like Figure 3 and Figure 7 and Figure 8 As shown, the guide strip 32 has a flat cross-section. The guide strip 32 is offset in opposite directions at its intersection with the ice scraper strip 31. That is, along the spiral direction of the guide strip 32, the offset changes to the opposite direction each time it passes an ice scraper strip 31. Figure 8 One side of the spiral mixing body 3 is inclined towards the inside, and the other side is inclined towards the outside. Only the last connection position between the guide bar 32 and the ice scraper 31 (i.e., the last guide position where the guide bar 32 and the ice scraper 31 are connected on one side) remains unchanged. The last connection position has moved out of the ice scraping range and discharge pressure needs to be provided at the discharge point. In this way, when the spiral mixing body 3 rotates, the inwardly inclined guide bar 32 section pushes the ice crystals inward and forward (refer to...). Figure 8 (See the upper half of the image). The 32 guide bars that slope outwards push the ice crystals outwards and forwards (refer to...). Figure 8 (The lower half of the image).

[0046] In this device, the guide strip 32 has gaps on both the outer cylindrical surface of the evaporator 1 and the inner wall of the container shell 2. This allows the ice crystals to leak out from both the top and bottom positions when the pushing force on the guide strip 32 is too large, avoiding unilateral force on the guide strip 32. Furthermore, the guide strip 32 is designed with opposite offset positions on both sides at the intersection with the ice scraper 31. This allows the ice crystals to leak out from the gaps between the top and bottom of the ice scraper while the spiral stirring body 3 rotates and pushes the material. Thus, when the guide strip 32 pushes the material forward, the ice crystals at the corresponding gaps between the top and bottom of the guide strip 32 will be guided by different offset directions for each rotation of the spiral stirring body 3. This greatly prevents the accumulation and solidification of ice crystals and ensures uniform ice crystal discharge.

[0047] In the specific design, such as Figure 7 As shown, a smooth protrusion 35 is designed at the intersection of the ice scraper 31 and the guide strip 32. The protrusion 35 not only increases the connection strength between the ice scraper 31 and the guide strip 32, but also makes the transition smoother and facilitates demolding.

[0048] Example 2: In Example 1, the ice scraper strip 31 and the ice scraper edge 311 are manufactured as a single piece using food-grade plastic. While this simplifies the overall structure, the ice scraper edge 311 is more prone to wear and deformation during ice scraping, which can affect the overall ice scraping performance after prolonged use. In this example, the main structure of the device is the same as in Example 1, and will not be repeated here. The key difference lies in... Figure 9 As shown, the ice scraper strip 31 is designed with a strip-shaped mounting groove 312, and the ice scraper edge 311 is installed in the mounting groove 312. The ice scraper strip 31 and the ice scraper edge 311 are made of different materials separately.

[0049] In this embodiment, the ice scraper 31 can also be made of plastic. The mounting groove 312 is designed with an inclination in the cross-sectional direction. The ice scraper edge 311 can be made of food-grade stainless steel (the ice scraper edge 311 can also be made of other food-grade rigid materials). It adopts a strip-shaped plate structure. One long side of the ice scraper edge 311 is inserted into the mounting groove 312. The other long side of the ice scraper edge 311 is attached to the outer wall of the evaporator 1 after assembly. At this time, the stainless steel ice scraper edge 311 has higher rigidity and wear resistance, and a longer service life. At the same time, the plastic ice scraper strip 31 can provide sufficient elastic support for the ice scraper edge 311, forming an effect similar to a steel-coated blade. This not only ensures the ice scraping effect but also greatly improves the service life of the entire ice scraper strip 31.

[0050] Furthermore, the inclined design of the mounting groove 312 allows the ice scraping edge 311 to form an inclined edge effect directly facing the outer surface of the evaporator 1 after assembly. The force during ice scraping is along the plate surface direction of the ice scraping edge 311, resulting in more reasonable force distribution. The mounting groove 312 and the ice scraping edge 311 can be designed into other structures that facilitate installation or reduce costs as needed.

[0051] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] 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 stirring-guided scraper feeding device for use in a snow melting machine, comprising a transverse cylindrical evaporator (1), the rear of which is mounted on a frame, the evaporator (1) being enclosed by a material container shell (2), and a spiral stirring body (3) being mounted inside the material container shell (2) on the outside of the evaporator (1); characterized in that: The spiral stirring body (3) includes two or more ice scraping strips (31) distributed circumferentially outside the evaporator (1). The different ice scraping strips (31) are connected by a spiral guide strip (32). The guide strip (32) has a gap after being assembled with the outer wall of the evaporator (1). The inner side of the ice scraping strip (31) is designed with an ice scraping edge (311) that protrudes inward and is attached to the outer wall of the evaporator (1). The spiral stirring body (3) is coaxially rotated relative to the evaporator (1).

2. The stirring-guided scraper feeding device according to claim 1, characterized in that: The ice scraper (31) adopts a straight structure and is parallel to the central axis of the evaporator (1). The ice scraper (31) is evenly distributed on the outer cylindrical surface of the evaporator (1), and the ice scraper edge (311) extends obliquely towards the outer wall of the evaporator (1).

3. The stirring-guided scraper feeding device according to claim 2, characterized in that: There are two guide bars (32), which are spirally designed relative to the axis of the evaporator (1). The front part of the spiral stirring body (3) is designed with a spiral front blade (34). The front blade (34) is smoothly connected to the two guide bars (32) as one unit. The middle of the front blade (34) is designed with an assembly end (341). The middle of the evaporator (1) is designed with a connecting shaft (4). The front end of the connecting shaft (4) extends out of the evaporator (1) and is fixedly connected to the assembly end (341) of the front blade (34). The rear end of the connecting shaft (4) is connected to the power module for transmission.

4. The stirring-guided scraper feeding device according to claim 3, characterized in that: The rear part of the spiral stirring body (3) is designed with a connecting ring (33) connecting the rear end of the ice scraper (31) and the guide strip (32). There are 4 ice scrapers (31), two long ice scrapers (31) evenly distributed relative to the axis of the evaporator (1) and two short ice scrapers (31) evenly distributed relative to the axis of the evaporator (1).

5. The stirring-guided scraper feeding device according to claim 3, characterized in that: The front edge of the front blade (34) is straight, and a middle groove (342) is machined in the middle of the front edge of the front blade (34). An axial through connecting hole (343) is machined in the middle of the front blade (34). The connecting hole (343) is limited and assembled with the front end of the connecting shaft (4). The front end of the connecting shaft (4) is designed with cutting surfaces at the top and bottom. The connecting hole (343) and the front end section of the connecting shaft (4) are limited and assembled with the same size.

6. The stirring-guided scraper feeding device according to claim 5, characterized in that: The mounting end (341) of the front blade (34) extends toward the side of the evaporator (1), and after assembly, the rear part of the front blade (34) has a gap with the front side of the evaporator (1).

7. The stirring-guided scraper feeding device according to claim 3, characterized in that: The guide bar (32) rotates spirally around the outer edge of the front blade (34) once.

8. A stirring-guided scraper feeding device according to any one of claims 1-7, characterized in that: The guide strip (32) has a flat cross-section. The two sides of the same guide strip (32) at the intersection with the ice scraper (31) are skewed in opposite directions, with one side inclined towards the inside of the spiral stirring body (3) and the other side inclined towards the outside of the spiral stirring body (3). When the spiral stirring body (3) rotates, the guide strip (32) section inclined inward pushes the ice crystals in the inward and forward direction, and the guide strip (32) section inclined outward pushes the ice crystals in the outward and forward direction.

9. A stirring-guided scraper feeding device according to claim 8, characterized in that: The intersection of the ice scraper (31) and the guide strip (32) is designed with a smooth protrusion (35).

10. A stirring-guided scraper feeding device according to claim 2, characterized in that: The ice scraper (31) is designed with a strip-shaped mounting groove (312), and the ice scraper edge (311) is installed in the mounting groove (312). The ice scraper (31) and the ice scraper edge (311) are made of different materials.

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