Ice cream machine for premixing and puffing
By employing a reciprocating piston motion and a one-way valve design in the ice cream machine, the premixing and pressurization of ice cream ingredients and gas are achieved, solving the problem of uneven mixing, improving extrusion efficiency and product quality, and ensuring the stable operation and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG SIBEILE REFRIGERATION ELECTRIC
- Filing Date
- 2026-03-16
- Publication Date
- 2026-05-05
AI Technical Summary
In the current ice cream overrunning process, the ice cream ingredients are not mixed evenly with air, resulting in insufficient overrunning, which affects the texture and taste of the product, and also reduces production efficiency.
The reciprocating motion of the piston is used to premix the gas and raw material liquid in the premixing unit, and then the mixture passes through a one-way valve to the refrigeration mixing tank. The premixing efficiency and effect are improved through premixing, pressurization and refrigeration.
It significantly improves the efficiency and effectiveness of premixing, ensures uniform mixing of air and ingredients, adjusts the texture of ice cream, and integrates a design to prevent liquid leakage, thereby improving the stability and safety of the device.
Smart Images
Figure CN121970822A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of ice cream machine equipment, and more particularly to an ice cream machine for premixed overrunning. Background Technology
[0002] Current ice cream overrunning processes typically take place directly in a refrigeration mixing tank. Air and ice cream ingredients are introduced into the tank, and overrunning is achieved through continuous stirring during cooling. However, this traditional method has significant limitations. It makes it difficult for the ice cream ingredients to fully mix with air during overrunning, resulting in uneven air distribution and significantly reduced overrunning. This incomplete overrunning negatively impacts the texture and taste of the final product, while also reducing production efficiency and prolonging the time required for dispensing. Summary of the Invention
[0003] To address the above problems, this invention proposes an ice cream machine for premixed extrusion. The reciprocating motion of the piston premixes the gas and raw liquid in the premixing unit, and then passes through a one-way valve to the refrigeration mixing tank, where it is premixed into raw materials with a certain pressure and air. Through premixing, pressurization, and refrigeration, the premixing efficiency and effect are greatly improved.
[0004] This application proposes an ice cream machine for premixed extrusion, characterized in that it includes: a liquid storage tank for storing ice cream making ingredients, and an internal cylinder, a premixing component and an extrusion rod; The cylinder body connects the premix and the expanded gas rod, and a feed check valve and a discharge check valve are respectively provided at the outlet of the premix and the outlet of the expanded gas rod. A piston is installed inside the cylinder and connected to a drive device; The premixing component is equipped with a liquid suction pipe and an air inlet pipe. The liquid suction pipe extends into the liquid storage tank to draw up the ice cream making ingredients. The air inlet pipe is connected to an air filling tank to draw up gas. The ice cream making ingredients and the gas are mixed inside the premixing component to form a premix. The puffing rod receives the premixed material and puffs it to form puffed material. The outlet end of the puffing rod is connected to a refrigeration mixing tank, so that the puffed material enters the refrigeration mixing tank for cooling and mixing to form finished ice cream.
[0005] Furthermore, a pipe is provided below the puffing rod, the pipe extends out of the liquid storage tank and connects to the refrigeration stirring tank below, and a discharge check valve is installed at the outlet end of the puffing rod, with a pressure reducing device below the discharge check valve.
[0006] Furthermore, the discharge check valve includes a discharge check valve body, a discharge plate, and a discharge valve plug. The discharge check valve body has a discharge hole. The discharge plate and the inner wall of the discharge hole are fixed. A discharge chamber is formed between the discharge plate and the pressure reducing device. The discharge plate has a movable hole and a discharge hole. The discharge valve plug extends into the movable hole and is located above the opening of the pressure reducing device.
[0007] Furthermore, the pressure reducing device includes a pressure reducing valve body, a pressure reducing ring, and pressure reducing plates. The pressure reducing valve body has multiple pressure reducing holes in an annular shape. The pressure reducing ring is sleeved outside the pressure reducing holes. Multiple pressure reducing plates are inserted into the pressure reducing ring to block the pressure reducing holes. When the internal pressure of the pressure reducing valve body reaches a certain level, the pressure reducing plates deform with the pressure reducing ring, causing the pressure reducing holes to be exposed and releasing pressure.
[0008] Furthermore, the premixed component has a channel communicating with the air intake pipe, and an air intake regulating valve is installed in the channel; the air intake regulating valve includes an air intake valve plug and an adjusting knob, the air intake valve plug and the bottom of the channel are fitted together and both are inverted conical, the adjusting knob extends from the outside of the premixed component into the channel and is fixedly connected to the air intake valve plug; by adjusting the adjusting knob, the gap between the air intake valve plug and the inner wall of the channel is controlled to adjust the air intake volume of the air intake pipe.
[0009] Furthermore, an air intake diaphragm is provided at the outlet of the air intake pipe for further filtration of the inhaled gas.
[0010] Furthermore, the feed check valve includes a limiting tube, a feed valve plug, and a spring. The limiting tube is fixedly installed at the outlet of the premixed component. One end of the feed valve plug can be movably inserted into the limiting tube, and the other end is fixed to the inner wall of the cylinder body through the spring.
[0011] Furthermore, the driving device includes a motor, an eccentric wheel, and an eccentric shaft. The eccentric shaft is offset from the axis of the eccentric wheel. The piston extends into the cylinder. An insertion hole is provided behind the piston. The eccentric shaft of the eccentric wheel is inserted into the insertion hole. The motor drives the eccentric wheel to perform circumferential motion, which in turn drives the piston to reciprocate within the cylinder.
[0012] Furthermore, the refrigeration stirring tank includes a freezing cylinder, a rotating shaft, and stirring blades. The rotating shaft is installed along the axial direction of the freezing cylinder at the center of the freezing cylinder, and one end of the rotating shaft extends out of the tail of the freezing cylinder and is connected to an external motor. A plurality of stirring blades are arranged alternately along the rotating shaft, and the stirring blades are inclined at a certain angle to the rotating shaft.
[0013] Furthermore, the rotating shaft is also provided with a spiral stirring blade and a baffle; the spiral stirring blade is located in front of the rotating shaft and at the opening of the freezing cylinder; the baffle is located in front of the feed inlet of the freezing cylinder and is at a certain distance from the inner wall of the freezing cylinder.
[0014] The beneficial effects of this invention are as follows: by premixing, pressurizing, and cooling, the efficiency and effect of premixing can be significantly improved; the air ratio of ice cream can be controlled by the air intake regulating valve, thereby adjusting the taste; integrating multiple components into the liquid storage box can reduce the volume while effectively preventing liquid leakage in the device, ensuring the stability and safety of the device operation; and this integrated design also facilitates unified maintenance and management of each component, reducing the cost of use and the difficulty of maintenance. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of an ice cream machine for premixed extrusion provided in an embodiment of this application; Figure 2 A front cross-sectional view of an ice cream machine for premixed extrusion provided in an embodiment of this application; Figure 3 This application provides a schematic diagram of the internal structure of an ice cream machine for premixed extrusion. Figure 4 This is a schematic diagram showing the opening of a one-way valve structure for discharging in a premixed and expanded ice cream machine, as provided in an embodiment of this application. Figure 5 This is a schematic diagram illustrating the closing of a one-way valve structure for discharging in a premixed and expanded ice cream machine, as provided in an embodiment of this application. Figure 6 A top view of the discharge check valve and pressure reducing device in a premixed and expanded ice cream machine provided in this application embodiment; Figure 7 This is a side cross-sectional structural diagram of an ice cream machine for premixed extrusion provided in an embodiment of this application; 1. Liquid storage tank; 2. Cylinder body; 21. Piston; 22. Insertion hole; 23. Fixing device; 3. Premixing component; 31. Feed check valve; 311. Limiting tube; 312. Feed valve plug; 313. Spring; 32. Suction tube; 33. Air inlet tube; 34. Channel; 35. Air inlet regulating valve; 351. Air inlet valve plug; 352. Adjusting knob; 36. Air inlet diaphragm; 4. Expanding air rod; 41. Discharge check valve; 411. Discharge check valve body; 412. Discharge plate; 413. Discharge valve 414. Plug; 415. Discharge hole; 416. Movable hole; 42. Discharge hole; 43. Pipe; 43. Pressure reducing device; 430. Pressure reducing valve body; 431. Pressure reducing ring; 432. Pressure reducing plate; 433. Pressure reducing hole; 434. Exhaust hole; 44. Discharge chamber; 5. Drive device; 51. Motor; 52. Eccentric wheel; 53. Eccentric shaft; 6. Refrigeration mixing tank; 61. Freezing cylinder; 62. Rotating shaft; 621. Spiral mixing plate; 622. Baffle; 63. Mixing plate; 7. Sealing ring. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other implementations obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. In the various drawings, the same elements are represented by the same or similar reference numerals, and for clarity, the various parts in the drawings are not drawn to scale.
[0018] See Figure 1-7As shown, this invention proposes an ice cream machine for premixed extrusion, characterized by comprising: a liquid storage tank 1 for storing ice cream making ingredients, and an internal cylinder 2, a premixing component 3, and an extrusion cylinder 4; the cylinder 2 connects the premixing component 3 and the extrusion cylinder 4, and respectively provides an inlet check valve 31 and an outlet check valve 41 at the outlets of the premixing component 3 and the extrusion cylinder 4; a piston 21 is installed inside the cylinder 2 and connected to a drive device 5, which drives the piston 21 to reciprocate inside the cylinder 2 to provide suction; the premixing component 3 is provided with a liquid suction pipe 32 and an air inlet pipe 33, the liquid suction pipe 32 extends into the liquid storage tank 1 for sucking up the ice cream making ingredients, and the air inlet pipe 33 is connected to an air filling tank for sucking up gas, wherein the ice cream making ingredients and the gas are premixed inside the premixing component 3 to form a premix. The puffing rod 4 receives the premixed material and puffs it to become puffed material. The outlet end of the puffing rod 4 is connected to a refrigeration mixing tank 6, allowing the puffed material to enter the refrigeration mixing tank 6 for cooling and mixing into finished ice cream. In this embodiment, the premixing component 3, the cylinder 2, and the puffing rod 4 are integrated inside the liquid storage tank 1, reducing the size of the device. The reciprocating motion of the piston 21 provides a high-pressure environment, and the ice cream raw materials and the gas pump are pressed into the premixing component 3 to become the premixed material. After the premixed material enters the puffing rod from the premixing component 3, the feed one-way valve 31 closes, and the premixed material is continuously puffed under high pressure in the puffing rod 4 to become the puffed material. After the puffing rod 4 reaches a certain pressure, the puffed material is discharged from the discharge one-way valve 41 and enters the refrigeration mixing tank 6 for cooling and mixing into finished ice cream. The device alternately opens and closes the inlet check valve 31 and the outlet check valve 41, and the material is conveyed within the device under the pump pressure of the piston 21. Preferably, the liquid suction pipe 32 extends into the bottom of the liquid storage tank 1 to maximize the utilization of the ice cream making ingredients.
[0019] See Figure 3-5 As shown, specifically, a pipe 42 is provided below the puffing rod 4, extending out of the liquid storage tank 1 and connecting to the refrigeration stirring tank 6 below. A discharge check valve 41 is installed at the outlet end of the puffing rod 4, and a pressure reducing device 43 is provided below the discharge check valve 41. In this embodiment, the pressure reducing device 43 is located at the bottom of the liquid storage tank to prevent excessive pressure. During pressure relief, the puffed material directly enters the refrigeration stirring tank 6, and the material ejected during pressure relief is collected again.
[0020] See Figure 4 , 5As shown, specifically, the discharge check valve 41 includes a discharge check valve body 411, a discharge plate 412, and a discharge valve plug 413. The discharge check valve body 411 has a discharge hole 414. The discharge plate 412 is fixed to the inner wall of the discharge hole 414, and a discharge chamber 44 is formed between the discharge plate 412 and the pressure reducing device 43. The discharge plate has a movable hole 415 and a discharge hole 416. The discharge valve plug 413 extends into the movable hole 415 and is located above the opening of the pressure reducing device 43. When the puffed material is pressed into the discharge check valve 41, the discharge valve plug 413 is forced downward to close the opening of the pressure reducing device 43, and the puffed material enters the discharge chamber 44 from the discharge hole 416. When the pressure reaches a certain level, the pressure reducing device 43 releases pressure, causing the discharge valve plug 413 to move upward, and the puffed material is discharged from the discharge chamber 44. In this embodiment, the shape of the rod portion of the discharge valve plug 413 matches the movable hole 415, and its surface is smoothed to reduce friction during movement, allowing the discharge valve plug 413 to move flexibly up and down. Multiple discharge holes 414 are arranged in a ring on the discharge plate 412 to ensure smooth passage of the expanded material.
[0021] Preferably, the opening of the pressure reducing device 43 is inverted conical, and the shape of the discharge valve plug 413 is larger than the opening of the pressure reducing device 43. When the discharge valve plug 413 moves, it closes the opening of the pressure reducing device 43. Preferably, the front and rear outer walls of the discharge valve plug 413 are in contact with the inner wall of the discharge hole 414, and the left and right outer walls of the discharge valve plug 413 are kept at a certain distance from the inner wall of the discharge hole 414 to ensure the entry of the expanded material.
[0022] See Figure 4-6As shown, specifically, the pressure reducing device 43 includes a pressure reducing valve body 430, a pressure reducing ring 431, and pressure reducing plates 432. The pressure reducing valve body 430 has a plurality of pressure reducing holes 433 arranged in a ring. The pressure reducing ring 431 is sleeved outside the pressure reducing holes 433. The plurality of pressure reducing plates 432 are inserted into the pressure reducing ring 431 to block the pressure reducing holes 433. When the internal pressure of the pressure reducing valve body 430 reaches a certain level, the pressure reducing plates 432 deform with the pressure reducing ring 431, exposing the pressure reducing holes 433 for pressure relief. In this embodiment, the pressure reducing plates 432 are fixedly connected to the pressure reducing ring 431, and the portion of the pressure reducing plate 432 inserted into the pressure reducing ring 431 has an exhaust hole 434. When the internal pressure of the pressure reducing valve body 430 reaches a certain value, the pressure reducing ring 431 at the pressure reducing plate 432 undergoes elastic deformation under pressure, and the vent 434 exposes the pressure reducing ring 431, allowing for pressure relief. When the internal pressure of the pressure reducing valve body 430 decreases, the internal force on the pressure reducing ring 431 decreases, and the pressure reducing ring 431 returns to its original shape, blocking the pressure reducing hole 433. Preferably, in this embodiment, there are four pressure reducing holes 433, which are spaced 90° apart, so that the pressure can be evenly distributed during the pressure relief process, making the overall pressure relief action of the pressure reducing device 43 more stable and smooth, effectively improving the reliability and stability of the pressure reducing device 43. Preferably, the pressure reducing ring 431 and the pressure reducing plate 432 are made of high-elasticity silicone. After pressure relief, the pressure reducing ring 431 can automatically return to its original shape; the high-elasticity silicone fits tightly with the pressure reducing valve body 430 to ensure a sealing effect.
[0023] See Figure 2 , 3As shown, specifically, the premixing component 3 has a channel 34 communicating with the air intake pipe 33. An air intake regulating valve 35 is installed within the channel 34. The air intake regulating valve 35 includes an air intake valve plug 351 and an adjusting knob 352. The air intake valve plug 351 and the bottom of the channel 34 are fitted together and are both inverted conical. The adjusting knob 352 extends from the outside of the premixing component 3 into the channel 34 and is fixedly connected to the air intake valve plug 351. By adjusting the adjusting knob 352, the gap between the air intake valve plug 351 and the inner wall of the channel 34 is controlled, thereby adjusting the air intake volume of the air intake pipe 33. Specifically, an air intake diaphragm 36 is provided at the outlet of the air intake pipe 33 for further filtering the inhaled gas. In this embodiment, the upper part of the air intake valve plug 351 has a thread that fits the inner wall of the channel 34. Rotating the adjusting knob 352 can move the air intake valve plug 351 up and down, creating a gap between the bottom end of the air intake valve plug 351 and the inner wall of the channel 34, allowing the gas to pass through. By rotating the adjusting knob 352, the gap between the air intake valve plug 351 and the inner wall of the channel 34 is controlled, thereby adjusting the air intake volume of the air intake pipe 33. The air intake diaphragm 36 is installed in the cavity of the premixing component 3, located at the outlet of the air intake pipe 33. The air intake diaphragm 36 is made of a semi-permeable membrane material, which can effectively block impurities from entering the interior of the premixing component 3, ensuring the purity of the gas used for making ice cream.
[0024] See Figure 3-5 As shown, specifically, the feed check valve 31 includes a limiting tube 311, a feed valve plug 312, and a spring 313. The limiting tube 311 is fixedly installed at the outlet of the premix. One end of the feed valve plug 312 can be movably inserted into the limiting tube 311, and the other end is fixed to the inner wall of the cylinder 2 by the spring 313. When the premix passes through, it pushes the spring 313 to compress, opening the feed valve plug 312, and the premix enters the puffing air rod 4. When feeding stops, the spring 313 rebounds and extends, and the feed valve plug 312 extends into the limiting tube 311, closing the outlet of the premix. In this embodiment, the limiting tube 311 is fixed to the outlet of the premix, and the end of the feed valve plug 312 extending into the limiting tube 311 is tapered, facilitating the opening and closing of the feed valve plug by the premix. The inner diameter of the limiting tube 311 is smaller than the outer diameter of the feed valve plug 312, ensuring that the tapered portion fits tightly against the inner wall of the limiting tube 311, enhancing the sealing effect and effectively preventing leakage of the premix when the feed valve plug 312 is closed. Preferably, the spring 313 is made of a high-strength, corrosion-resistant material to ensure good elasticity during frequent compression and rebound.
[0025] See Figure 7As shown, specifically, the driving device 5 includes a motor 51, an eccentric wheel 52, and an eccentric shaft 53. The eccentric shaft 53 is offset from the axis of the eccentric wheel 52. The piston 21 extends into the cylinder 2, and an insertion hole 22 is provided behind the piston 21. The eccentric shaft 53 of the eccentric wheel 52 is inserted into the insertion hole 22. The motor 51 drives the eccentric wheel 52 to perform circular motion, causing the piston 21 to reciprocate within the cylinder 22. In this embodiment, the direction of movement of the piston 21 is parallel to the plane of the eccentric wheel 52. Preferably, a retainer 23 is provided at the connection point between the cylinder 2 and the driving device 5, and the retainer 23 fixes the cylinder 2 to the vertical surface of the liquid storage tank 1 from both the inner and outer sides.
[0026] See Figure 7 As shown, specifically, the refrigeration mixing tank 6 includes a freezing cylinder 61, a rotating shaft 62, and stirring blades 63. The rotating shaft 62 is installed along the axial direction of the freezing cylinder 61 at its center, with one end extending out of the tail of the freezing cylinder 61 and connected to an external motor. Multiple stirring blades 63 are staggered along the rotating shaft 61, and are inclined at a certain angle to the rotating shaft 62. Specifically, the rotating shaft 62 is also equipped with a spiral stirring blade 621 and a baffle 622. The spiral stirring blade 621 is installed in front of the rotating shaft 62, located at the opening of the freezing cylinder 61. The baffle 622 is installed at the rear end of the rotating shaft 62, located in front of the feed inlet of the freezing cylinder 61, and is a certain distance from the inner wall of the freezing cylinder 62. In this embodiment, the spiral stirring blade 621 guides the finished ice cream to gather in one direction at the front end of the freezing cylinder 61, facilitating the production of the finished ice cream.
[0027] As a preferred option, see Figure 3 As shown, sealing rings 7 are provided at the connections of the premixing component 3 and the liquid suction pipe 32, the connection of the air inlet valve plug 351 and the premixing component 3, the connection of the premixing component 3 and the limiting pipe 311, and the connection of the pressure reducing valve body 430 and the pipe 42. The sealing rings 7 are made of food-grade rubber material, possessing excellent sealing performance and corrosion resistance, effectively preventing leakage of ice cream ingredients, gas, and premix during transmission, ensuring the normal operation of the ice cream machine and the quality of the finished ice cream.
[0028] The principle of this application is as follows: The driving device 5 drives the piston 21 to reciprocate within the cylinder 2, generating high pressure; it draws in the ice cream-making ingredients and the gas, pre-mixing them inside the premixing unit 3 to form the premix; after the premix is discharged from the outlet of the premixing unit 3, the feed one-way valve 31 closes, and the premix is pumped into the extrusion rod 4 for continuous high-pressure extrusion, ultimately becoming the extruded material; the discharge one-way valve 41 is initially closed. After the pressure of the extruded material in the extrusion rod 4 reaches a certain value, the pressure reducing device 43 releases pressure, the discharge one-way valve 41 opens, and the extruded material enters the refrigeration mixing tank 6 for cooling and mixing, thus producing the finished ice cream. This device achieves the conveying of the ice cream-making ingredients by alternately opening and closing the feed one-way valve 31 and the discharge one-way valve 41 under the pumping pressure of the piston 21.
[0029] The beneficial effects of this invention are as follows: By premixing, pressurizing, and cooling, the ice cream ingredients and gases are fully mixed in the premixing unit to form a uniform premix, which significantly improves the efficiency and effect of premixing; the air intake regulating valve can control the air ratio of the ice cream, thereby adjusting the texture; the device adopts an alternating opening and closing design of the inlet one-way valve and the outlet one-way valve, which effectively prevents the backflow of ingredients and extruded materials, ensuring the stable operation of the ice cream machine and the high-quality output of finished ice cream. Integrating multiple components into the liquid storage box can reduce the volume while effectively preventing liquid leakage inside the device, ensuring the stability and safety of the device operation; furthermore, this integrated design facilitates unified maintenance and management of each component, reducing operating costs and maintenance difficulty.
[0030] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be noted that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0031] Those skilled in the art will understand that modules in the devices of the embodiments can be adaptively changed and placed in one or more devices different from those embodiments. It should be noted that the above embodiments are illustrative of this disclosure and not limiting of it, and that alternative embodiments can be devised by those skilled in the art without departing from the scope of the appended claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. This disclosure can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims listing several systems, several of these systems can be embodied by the same item of hardware. Finally, it should be noted that the above embodiments are obviously merely examples for clearly illustrating the invention and are not intended to limit the implementation. Other variations or modifications can be made based on the above description by those skilled in the art. It is neither necessary nor possible to exhaustively describe all embodiments here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.
Claims
1. An ice cream machine for premixed overrunning, characterized in that, include: The liquid storage tank is used to store ice cream ingredients and contains a cylinder, premixing components and an overfilling stick. The cylinder body connects the premix and the expanded gas rod, and a feed check valve and a discharge check valve are respectively provided at the outlet of the premix and the outlet of the expanded gas rod. A piston is installed inside the cylinder and connected to a drive device; The premixing component is provided with a liquid suction pipe and an air inlet pipe. The liquid suction pipe extends into the liquid storage tank to draw up the ice cream making ingredients. The air inlet pipe is connected to an air filling tank to draw up gas. The ice cream making ingredients and the gas are mixed in the premixing component to form a premix. The puffing rod receives the premixed material and puffs it to form puffed material. The outlet end of the puffing rod is connected to a refrigeration mixing tank, so that the puffed material enters the refrigeration mixing tank for cooling and mixing to form finished ice cream.
2. The ice cream machine for premixed extrusion according to claim 1, characterized in that, A pipe is provided below the puffing rod, the pipe extends out of the liquid storage tank and connects to the refrigeration stirring tank below, and a discharge check valve is installed at the outlet end of the puffing rod, with a pressure reducing device below the discharge check valve.
3. The ice cream machine for premixed extrusion according to claim 2, characterized in that, The discharge check valve includes a discharge check valve body, a discharge plate, and a discharge valve plug. The discharge check valve body has a discharge hole. The discharge plate and the inner wall of the discharge hole are fixed. A discharge chamber is formed between the discharge plate and the pressure reducing device. The discharge plate has a movable hole and a discharge hole. The discharge valve plug extends into the movable hole and is located above the opening of the pressure reducing device.
4. The ice cream machine for premixed extrusion according to claim 2, characterized in that, The pressure reducing device includes a pressure reducing valve body, a pressure reducing ring, and pressure reducing plates. The pressure reducing valve body has multiple pressure reducing holes in an annular shape. The pressure reducing ring is sleeved outside the pressure reducing holes. Multiple pressure reducing plates are inserted into the pressure reducing ring to block the pressure reducing holes. When the internal pressure of the pressure reducing valve body reaches a certain level, the pressure reducing plates deform with the pressure reducing ring, exposing the pressure reducing holes to release pressure.
5. The ice cream machine for premixed overrunning according to claim 1, characterized in that, The premixed component has a channel communicating with the air intake pipe, and an air intake regulating valve is installed in the channel. The air intake regulating valve includes an air intake valve plug and an adjusting knob. The air intake valve plug fits into the bottom of the channel and is inverted conical in shape. The adjusting knob extends into the channel from the outside of the premixed component and is fixedly connected to the air intake valve plug. By adjusting the adjusting knob, the gap between the air intake valve plug and the inner wall of the channel is controlled to adjust the air intake volume of the air intake pipe.
6. The ice cream machine for premixed extrusion according to claim 5, characterized in that, An air intake diaphragm is provided at the outlet of the air intake pipe for further filtration of the inhaled gas.
7. The ice cream machine for premixed extrusion according to claim 1, characterized in that, The feed check valve includes a limiting tube, a feed valve plug, and a spring. The limiting tube is fixedly installed at the outlet of the premixed component. One end of the feed valve plug can be movably inserted into the limiting tube, and the other end is fixed to the inner wall of the cylinder body by the spring.
8. The ice cream machine for premixed overrunning according to claim 1, characterized in that, The driving device includes a motor, an eccentric wheel, and an eccentric shaft. The eccentric shaft is offset from the axis of the eccentric wheel. The piston extends into the cylinder. An insertion hole is provided behind the piston. The eccentric shaft of the eccentric wheel is inserted into the insertion hole. The motor drives the eccentric wheel to perform circular motion, which in turn drives the piston to reciprocate within the cylinder.
9. The ice cream machine for premixed overrunning according to claim 1, characterized in that, The refrigeration stirring tank includes a freezing cylinder, a rotating shaft, and stirring blades. The rotating shaft is installed along the axial direction of the freezing cylinder at the center of the freezing cylinder. One end of the rotating shaft extends out of the tail of the freezing cylinder and is connected to an external motor. A plurality of stirring blades are arranged alternately along the rotating shaft, and the stirring blades are inclined at a certain angle to the rotating shaft.
10. The ice cream machine for premixed overrunning according to claim 9, characterized in that, The rotating shaft is also equipped with a spiral stirring blade and a baffle; the spiral stirring blade is located in front of the rotating shaft and at the opening of the freezing cylinder; the baffle is located in front of the feed inlet of the freezing cylinder and is at a certain distance from the inner wall of the freezing cylinder.