Multi-layer sectional ice cream stirring device

Abstract

The invention relates to the technical field of ice cream production, and discloses a multilayer sectional type ice cream stirring device which comprises a stirring cavity and stirring shafts, the stirring shafts are coaxially and rotatably mounted in the stirring cavity and comprise a main stirring shaft and an auxiliary stirring shaft, the main stirring shaft and the auxiliary stirring shaft are spiral in the same direction, and the main stirring shaft and the auxiliary stirring shaft are coaxially and rotatably mounted in the stirring cavity. The main stirring shaft is sleeved with a main stirring barrel, the auxiliary stirring shaft is sleeved with an auxiliary stirring barrel, and the main stirring barrel is connected with the top of the auxiliary stirring barrel through a conveying pipe; in the stirring process, the main stirring shaft pushes the raw materials to the top from the bottom to promote mutual contact and collision of the raw materials, the auxiliary stirring shaft pushes the raw materials downwards from the top to be further mixed, the spiral mixing mode of up-and-down circulating flow greatly improves the mixing efficiency of the raw materials, it is ensured that the raw materials can be repeatedly mixed, and the mixing efficiency is improved. Therefore, the ice cream mixing quality is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of ice cream production, in particular to a multi-layer segmented ice cream stirring device. Background Art

[0002] The ice cream stirring device is the core equipment in the ice cream making process. It integrates stirring and mixing with cooling and solidification functions. The device drives the stirrer to fully mix the ice cream ingredients through the rotation of the stirring shaft to ensure that each part can be evenly blended. At the same time, the built-in condenser continuously cools the ingredients during the stirring process, so that they gradually solidify into a delicate and smooth ice cream. By adjusting the speed of the stirring shaft, the amount of air introduced into the ice cream can also be controlled, so as to produce ice cream products with different tastes.

[0003] However, the existing ice cream stirring equipment has a low stirring efficiency, which makes the mixing and cooling speed of the raw materials less than ideal during the preparation of ice cream, which may lead to the texture of the ice cream not being delicate enough, and even in some cases, the raw materials are not fully integrated, affecting the taste and flavor of the finished product. For example, an ice cream machine and an ice cream preparation method proposed in Chinese patent CN202110922952.9 include a stirring mechanism arranged inside the stirring drum, the stirring mechanism includes a pressing plate slidably arranged inside the stirring drum and dividing the stirring drum into a first stirring chamber and a second stirring chamber, when the pressing plate is close to the bottom end of the stirring drum, the volume of the second stirring chamber decreases, and the volume of the first stirring chamber increases, when the pressing plate is away from the bottom end of the stirring drum, the volume of the second stirring chamber increases, and the volume of the first stirring chamber decreases, and a diversion channel is embedded in the stirring drum; the material returns to the second stirring chamber through the diversion channel, and the raw materials originally on the top layer inside the first stirring chamber will enter the bottom of the second stirring chamber, the above structure has an inefficient stirring effect and prolongs the production cycle, increases energy consumption and cost, is not conducive to large-scale production and commercial application, and this device cannot effectively and evenly inject air into the ice cream during the stirring process. Uniform air in the raw materials can not only give the ice cream a light and dense texture, but also enhance its melting feeling in the mouth. However, the air in existing stirring equipment is often not evenly distributed in the ice cream, resulting in excessive air content in some areas (forming ice crystals that are too large) and other areas being too tight and lacking the proper fluffiness. The ice cream produced is often too thick and tastes poor. Summary of the invention

[0004] (I) Technical problems to be solved: In view of the shortcomings of the prior art, the present invention provides a multi-layer segmented ice cream stirring device, which has the advantages of efficient stirring and uniform air injection, and solves the problems of low stirring efficiency and uneven air injection of existing stirring equipment.

[0005] (II) Technical solution: In order to achieve the above-mentioned purpose of efficient stirring and uniform air injection, the present invention provides the following technical solution: a multi-layer segmented ice cream stirring device, comprising a stirring chamber and a stirring shaft, the stirring shaft being coaxially rotatably installed in the stirring chamber, the stirring shaft comprising a main stirring shaft and an auxiliary stirring shaft, the main stirring shaft and the auxiliary stirring shaft are both spirally shaped in the same direction, the main stirring shaft is sleeved with a main stirring drum, the auxiliary stirring shaft is sleeved with an auxiliary stirring drum, the main stirring drum and the auxiliary stirring drum are connected at the top through a feeding pipe, and the auxiliary stirring drum, the main stirring drum, and the stirring chamber are spaced apart from each other. The main mixing drum is a sun gear, the auxiliary mixing drum is a planetary gear, the mixing chamber is a gear ring, the number of teeth of the main mixing drum is greater than that of the auxiliary mixing drum, and when the main mixing drum rotates, the auxiliary mixing drum is driven to rotate, and the rotation speed of the auxiliary mixing drum is greater than the rotation speed of the main mixing drum; during the mixing process, the main mixing shaft rotates forward and its own spiral structure generates an upward force on the raw materials, transporting the raw materials from the bottom of the mixing chamber to the top, while the auxiliary mixing shaft reverses and its own spiral structure generates a downward force on the raw materials, transporting the raw materials transported to the top by the main mixing shaft to the bottom.

[0006] Preferably, the main stirring shaft comprises a transmission shaft, a spiral stirring disk, and a spiral aeration disk, the transmission shaft passes through the bottom of the stirring chamber, and the bottom of the transmission shaft is connected to a driving structure, the spiral stirring disk and the spiral aeration disk are coaxially mounted on the transmission shaft, the spiral stirring disk and the spiral aeration disk have the same spiral direction and pitch, the spiral stirring disk and the spiral aeration disk are equidistantly mounted along the axial direction of the transmission shaft, an aeration chamber filled with gas is opened in the transmission shaft, the spiral aeration disk comprises an upper spiral disk and a lower spiral disk, the upper spiral The upper and lower spiral disks are slidably installed on the transmission shaft, and an air groove connected to the inflation chamber is provided on the transmission shaft. A cavity is provided between the upper and lower spiral disks, and the air groove is connected to the cavity. When the cavity is inflated, the upper and lower spiral disks are lifted up to slide; an inflation hole connected to the cavity is provided on the upper and lower spiral disks, and gas is periodically filled into the inflation chamber, so that the upper and lower spiral disks slide periodically to generate vibration; the spiral inflation disk is sealed and connected to the main mixing drum.

[0007] Preferably, a spiral slide groove is provided on the transmission shaft, and a return spring is provided between the slide groove and the upper spiral disk and the lower spiral disk. The upper spiral disk and the lower spiral disk are slidably installed in the slide groove, and a fan-shaped baffle is slidably connected in the upper spiral disk and the lower spiral disk, and the fan-shaped baffle is arranged in two or more groups equidistantly in the spiral direction. A connecting hole is provided on the fan-shaped baffle. When the fan-shaped baffle slides to the outside, the connecting hole is connected to the inflation hole. When the fan-shaped baffle slides to the inside, the fan-shaped baffle blocks the inflation hole to close it; the fan-shaped baffle is a magnetic material, and two groups of adsorption magnetic strips are provided on the inner wall of the slide groove, wherein the top magnetic pole of the upper adsorption magnetic strip is aligned with the fan The magnetic poles of the fan-shaped baffle are the same, and the bottom magnetic pole of the adsorption magnetic strip above is different from the magnetic pole of the fan-shaped baffle; the top magnetic pole of the adsorption magnetic strip below is different from the fan-shaped baffle, and the bottom magnetic pole of the adsorption magnetic strip below is the same as the fan-shaped baffle; when the gas is filled in the cavity, the upper spiral disk slides upward and drives the fan-shaped baffle to move to the top of the adsorption magnetic strip, the fan-shaped baffle and the adsorption magnetic strip generate repulsive force, the fan-shaped baffle slides outward and connects the connecting hole with the inflation hole, so that the gas in the cavity reduces the upper spiral disk from sliding down, and drives the fan-shaped baffle to slide to the lower end of the adsorption magnetic strip, and the adsorption magnetic strip adsorbs the fan-shaped baffle to reset and close the inflation hole; the movement state of the lower spiral disk is opposite to that of the upper spiral disk.

[0008] Preferably, the air groove is arranged in a spiral shape.

[0009] Preferably, two or more groups of the auxiliary stirring shafts are arranged along the circumferential direction of the main stirring shaft.

[0010] Preferably, the spiral pitch of the auxiliary stirring shaft is a variable pitch, and the variable pitch gradually decreases from top to bottom.

[0011] Preferably, the diameter of the main stirring shaft is greater than the diameter of the auxiliary stirring shaft, and the length of the main stirring drum is longer than that of the auxiliary stirring drum.

[0012] Preferably, a top cover is installed between the auxiliary mixing drum and the feeding pipe, and the top cover is rotatably connected to the auxiliary mixing drum. A sealing cover is provided between the main mixing drum and the feeding pipe, and the sealing cover is rotatably connected to the main mixing drum.

[0013] Preferably, the bottoms of the main mixing drum and the auxiliary mixing drum are connected to the mixing chamber.

[0014] Preferably, a feed port is provided at the top of the stirring chamber, a drum cover is rotatably connected to the top of the main stirring drum and the auxiliary stirring drum, the feed port is provided on the drum cover, and a discharge hole is provided at the bottom of the stirring chamber.

[0015] (III) Beneficial effects: Compared with the prior art, the present invention provides a multi-layer segmented ice cream stirring device, which has the following beneficial effects: 1. The multi-layer segmented ice cream stirring device, through the coordinated use of the main stirring shaft structure and the auxiliary stirring shaft structure, the main stirring shaft pushes the raw materials from the bottom to the top, promoting the mutual contact and collision between the raw materials, while the auxiliary stirring shaft pushes the raw materials from the top to the bottom for further mixing. The above-mentioned spiral mixing method of circulating up and down greatly improves the mixing efficiency of the raw materials, ensures that the raw materials can be repeatedly mixed, thereby improving the mixing quality of the ice cream.

[0016] 2. The multi-layer segmented ice cream stirring device realizes all-round mixing of the raw materials in the stirring chamber through the coordinated use of the main stirring shaft structure and the auxiliary stirring shaft structure, the stirring and extrusion of the spiral structure of the auxiliary stirring drum and the planetary gear meshing relationship with the main stirring drum and the stirring chamber, thereby breaking the agglomeration and stratification of the raw materials in the stirring chamber, ensuring the uniform distribution of the raw materials, and greatly improving the mixing efficiency of the raw materials in the stirring chamber.

[0017] 3. The multi-layer segmented ice cream stirring device, through the coordinated use of the spiral aeration disk structure and the aeration cavity structure, the periodic aeration and the vibration of the spiral aeration disk, not only subject the raw materials to high-frequency vibration and uniform gas penetration, but also decompose large bubbles into small bubbles through the extrusion and stretching process, thereby achieving a uniform and delicate distribution of bubbles in the raw materials, thereby significantly improving the taste and texture of the ice cream.

[0018] 4. The multi-layer segmented ice cream stirring device uses an auxiliary stirring shaft structure in conjunction with a main stirring shaft structure, so that when the raw materials are stirred by the auxiliary stirring shaft, the gradually decreasing spiral pitch of the auxiliary stirring shaft enhances the squeezing effect of the raw materials during the stirring process, which not only promotes further mixing of the raw materials, but also effectively decomposes large bubbles into more small bubbles, achieving a uniform and delicate distribution of bubbles in the raw materials, thereby significantly improving the taste and texture of the ice cream, making it more delicate and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the multi-layer segmented ice cream stirring device in the present invention.

[0020] Figure 2 It is a structural front view of the multi-layer segmented ice cream stirring device of the present invention.

[0021] Figure 3 It is a top view of the structure of the multi-layer segmented ice cream stirring device in the present invention.

[0022] Figure 4 for Figure 3 AA section view.

[0023] Figure 5 It is a three-dimensional schematic diagram of the internal structure of the stirring chamber of the multi-layer segmented ice cream stirring device in the present invention.

[0024] Figure 6 for Figure 4 Enlarged view of the local structure of the medium N spiral inflatable disk.

[0025] Figure 7 It is a schematic diagram of the structure of the spiral inflation disk after expansion in the present invention.

[0026] In the figure: 1. stirring chamber; 2. main stirring shaft; 21. main stirring drum; 22. transmission shaft; 221. inflation chamber; 222. air groove; 223. slide groove; 224. adsorption magnetic strip; 23. spiral stirring disk; 24. spiral inflation disk; 241. upper spiral disk; 242. lower spiral disk; 243. fan-shaped baffle; 244. connecting hole; 245. inflation hole; 3. auxiliary stirring shaft; 31. auxiliary stirring drum; 4. feed pipe; 5. top cover; 6. sealing cover; 7. drum cover. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5A multi-layer segmented ice cream stirring device comprises a stirring chamber 1 and a stirring shaft. The stirring shaft is coaxially installed in the stirring chamber 1. The stirring shaft comprises a main stirring shaft 2 and an auxiliary stirring shaft 3. The main stirring shaft 2 and the auxiliary stirring shaft 3 are both spiral in the same direction. This design enables the main stirring shaft 2 to generate a component force along the spiral direction on the raw materials around the bottom during rotation, pushing the raw materials to move upward along the spiral direction of the main stirring shaft 2, and promoting the mutual contact and collision between the raw materials. At the same time, although the auxiliary stirring shaft 3 is also spiral, it is reversed so as to push the raw materials from the top downward for further mixing. A main stirring drum 21 is sleeved on the main stirring shaft 2, and an auxiliary stirring drum 31 is sleeved on the auxiliary stirring shaft 3. The design of the main stirring drum 21 and the auxiliary stirring drum 31 increases the stirring area and stirring effect of the stirring device, so that the raw materials can be stirred and mixed more fully. The main stirring drum 21 and the auxiliary stirring drum 31 are connected at the top through a feed pipe 4. The design of the feed pipe 4 enables the raw materials to be smoothly transferred from the top of the main stirring drum 21 to the auxiliary stirring drum 31, thereby realizing continuous stirring and mixing of the raw materials. The auxiliary mixing drum 31, the main mixing drum 21, and the mixing chamber 1 are meshed in a planetary gear-like manner. The main mixing drum 21 is a sun gear, the auxiliary mixing drum 31 is a planetary gear, and the mixing chamber 1 is a gear ring. The design of the planetary gear meshing enables the main mixing drum 21 and the auxiliary mixing drum 31 to drive and rotate each other, thereby achieving a more efficient mixing effect. This design can break the agglomeration and stratification phenomenon in the raw materials and ensure that the raw materials are evenly distributed in the mixing chamber 1. The number of teeth of the main mixing drum 21 is greater than the number of teeth of the auxiliary mixing drum 31. When the main mixing drum 21 rotates, the auxiliary mixing drum 31 is driven to rotate, and the speed of the auxiliary mixing drum 31 is greater than the speed of the main mixing drum 21. The design that the number of teeth of the main mixing drum 21 is greater than the number of teeth of the auxiliary mixing drum 31 enables the auxiliary mixing drum 31 to rotate at a faster speed when the main mixing drum 21 rotates. This design can improve the mixing efficiency and mixing effect of the mixing device, so that the raw materials can reach a uniformly mixed state more quickly. At the same time, different rotation speeds also promote the shearing and stretching effects between the raw materials, further improving the mixing quality. During the stirring process, the main stirring shaft 2 rotates forward and its own spiral structure generates an upward force on the raw materials, transporting the raw materials from the bottom of the stirring chamber 1 to the top, while the auxiliary stirring shaft 3 rotates reversely and its own spiral structure generates a downward force on the raw materials, transporting the raw materials transported to the top by the main stirring shaft 2 to the bottom.

[0029] See also Figure 4-Figure 6The main stirring shaft 2 includes a transmission shaft 22, a spiral stirring disk 23, and a spiral aeration disk 24. The transmission shaft 22 runs through the bottom of the stirring chamber 1, and a driving structure is connected to the bottom of the transmission shaft 22. The spiral stirring disk 23 and the spiral aeration disk 24 are coaxially mounted on the transmission shaft 22. The spiral stirring disk 23 and the spiral aeration disk 24 have the same spiral direction and pitch. The spiral stirring disk 23 and the spiral aeration disk 24 are equidistantly installed along the axial direction of the transmission shaft 22. This design enables the raw materials to be subjected to uniform force during the stirring process, thereby improving the stirring efficiency. The equidistant installation ensures that the raw materials are uniformly treated in the axial direction, avoiding local over- or under-treatment. A gas-filled aeration chamber 221 is provided in the transmission shaft 22. The design of the aeration chamber 221 is to provide a gas source, and the spiral aeration disk 24 is driven by periodic inflation, thereby generating a vibration effect and enhancing the stirring effect. The spiral gas-filling disk 24 includes an upper spiral disk 241 and a lower spiral disk 242, which are slidably mounted on the transmission shaft 22. The slidable mounting allows the upper spiral disk 241 and the lower spiral disk 242 to move freely on the transmission shaft 22, thereby achieving periodic vibration and uniform gas penetration. The transmission shaft 22 is provided with an air groove 222 connected to the gas-filling cavity 221. The air groove 222 is designed to guide the gas in the gas-filling cavity 221 into the cavity, thereby promoting the sliding of the upper spiral disk 241 and the lower spiral disk 242 to achieve a vibration effect. A cavity is provided between the upper spiral disk 241 and the lower spiral disk 242, and the gas groove 222 is connected to the cavity. When the cavity is inflated, the upper spiral disk 241 and the lower spiral disk 242 are lifted up to slide. The connection design of the cavity and the gas groove 222 is the key structure to realize the periodic sliding of the upper spiral disk 241 and the lower spiral disk 242, and the sliding and resetting are realized by the filling and release of gas; the upper spiral disk 241 and the lower spiral disk 242 are provided with a gas filling hole 245 connected to the cavity, and the gas filling cavity 221 is periodically filled with gas, so that the upper spiral disk 241 and the lower spiral disk 242 are periodically slid to generate vibration; the spiral gas filling disk 24 is sealed and connected to the main mixing drum 21, and the sealed connection ensures that the gas will not leak from the gap between the spiral gas filling disk 24 and the main mixing drum 21, ensuring the effective use of gas and the realization of the stirring effect. At the same time, it also prevents the raw materials from entering the cavity or the gas filling cavity 221, ensuring the stable operation of the device.

[0030] See also Figure 4-Figure 7, a spiral chute 223 is provided on the transmission shaft 22, and the upper spiral disk 241 and the lower spiral disk 242 are slidably installed in the chute 223. This design allows the upper spiral disk 241 and the lower spiral disk 242 to slide freely in the spiral chute 223 of the transmission shaft 22, thereby realizing a more complex stirring and inflation mode. The spiral chute 223 matches the spiral disk, which can ensure the continuity and uniformity of the stirring and inflation process. A return spring is provided between the chute 223 and the upper spiral disk 241 and the lower spiral disk 242. The return spring pushes the upper spiral disk 241 and the lower spiral disk 242 to the middle position of the chute 223. The design of the return spring is to ensure that the upper spiral disk 241 and the lower spiral disk 242 can return to the initial position, that is, the middle position of the chute 223, after sliding, wherein the return spring is not shown. In addition, a fan-shaped baffle 243 is slidably connected inside the upper spiral disk 241 and the lower spiral disk 242. Two or more groups of fan-shaped baffles 243 are arranged in an evenly spaced row along the spiral direction. A connecting hole 244 is provided on the fan-shaped baffle 243. When the fan-shaped baffle 243 slides to the outside, the connecting hole 244 is connected to the inflation hole 245. When the fan-shaped baffle 243 slides to the inside, the fan-shaped baffle 243 blocks the inflation hole 245 to close it. The fan-shaped baffle 243 is a magnetic material, and the magnetic material can be made of iron and its alloy. Two groups of adsorption magnetic strips 224 are arranged on the inner wall of the slide 223, wherein the top magnetic pole of the upper adsorption magnetic strip 224 is the same as the magnetic pole of the fan-shaped baffle 243, and the bottom magnetic pole of the upper adsorption magnetic strip 224 is different from the magnetic pole of the fan-shaped baffle 243; while the top magnetic pole of the lower adsorption magnetic strip 224 is different from the fan-shaped baffle 243, and the bottom magnetic pole of the lower adsorption magnetic strip 224 is the same as the fan-shaped baffle 243. By changing the positional relationship between the fan-shaped baffle 243 and the adsorption magnetic strip 224, the position and movement trajectory of the fan-shaped baffle 243 in the slide 223 can be controlled, thereby achieving a more flexible stirring and inflation mode. When the cavity is filled with gas, the upper spiral disk 241 slides upward and drives the fan-shaped baffle 243 to move to the top of the adsorption magnetic strip 224. The fan-shaped baffle 243 and the adsorption magnetic strip 224 generate repulsive force. The fan-shaped baffle 243 slides outward and connects the connecting hole 244 with the inflation hole 245, so that the gas in the cavity is reduced and the upper spiral disk 241 slides down. After driving the fan-shaped baffle 243 to slide to the lower end of the adsorption magnetic strip 224, the adsorption magnetic strip 224 adsorbs the fan-shaped baffle 243 to reset and close the inflation hole 245; the movement state of the lower spiral disk 242 is opposite to that of the upper spiral disk 241.

[0031] See also Figure 1-Figure 7, the air groove 222 is arranged in a spiral shape. The spiral air groove 222 is designed to better guide the gas in the inflation cavity 221 into the cavity, thereby promoting the sliding of the upper spiral disk 241 and the lower spiral disk 242 to achieve a vibration effect. This design ensures that the gas can act on the spiral inflation disk 24 evenly and continuously, thereby improving the efficiency of stirring and inflation. Two or more groups of auxiliary stirring shafts 3 are arranged along the circumferential direction of the main stirring shaft 2. Designing two or more groups of auxiliary stirring shafts 3 can increase the stirring effect of the stirring device, so that the raw materials can be stirred and mixed more fully. Multiple groups of auxiliary stirring shafts 3 can form multiple stirring areas, thereby improving the uniformity and efficiency of stirring. The spiral pitch of the auxiliary stirring shaft 3 is a variable pitch, and its variable pitch gradually decreases from top to bottom. The design of the variable pitch gradually increases the extrusion effect on the raw materials during the stirring process, thereby further mixing the raw materials and uniformly distributing the bubbles. When the raw material passes through an area with a smaller spiral pitch, its flow rate will be hindered, causing the raw material to accumulate in this area and be subjected to greater pressure. This pressure compresses the large bubbles, thereby decomposing them into more small bubbles. And the gradually decreasing pitch can also make the raw material gradually change direction and position during the stirring process, further improving the mixing efficiency. The diameter of the main stirring shaft 2 is larger than the diameter of the auxiliary stirring shaft 3, and the length of the main stirring drum 21 is longer than the auxiliary stirring drum 31. The design that the diameter of the main stirring shaft 2 is larger than the diameter of the auxiliary stirring shaft 3 can make the main stirring shaft 2 generate a greater stirring force and stirring area during the stirring process, thereby improving the stirring efficiency. A top cover 5 is installed between the auxiliary stirring drum 31 and the feed pipe 4, and the top cover 5 is rotatably connected to the auxiliary stirring drum 31. A sealing cover 6 is provided between the main stirring drum 21 and the feed pipe 4, and the sealing cover 6 is rotatably connected to the main stirring drum 21. The bottoms of the main stirring drum 21 and the auxiliary stirring drum 31 are connected to the stirring chamber 1. A feed inlet is provided at the top of the stirring chamber 1 , a cylinder cover 7 is rotatably connected to the top of the main stirring drum 21 and the auxiliary stirring drum 31 , the feed inlet is provided on the cylinder cover 7 , and a discharge hole is provided at the bottom of the stirring chamber 1 .

[0032] Working principle: The device is used to stir the raw materials of ice cream. The raw materials enter the stirring chamber 1 from the top feed port, and the driving structure is started to drive the transmission shaft 22 to rotate. Since the main stirring drum 21 and the auxiliary stirring drum 31 are connected in a planetary gear-like manner, when the main stirring drum 21 rotates, it will drive other auxiliary stirring drums 31 around to rotate together, and the main stirring drum 21 and the auxiliary stirring drum 31 have opposite directions. In this process, the auxiliary stirring drum 31 will drive the raw materials in the stirring chamber 1 to mix. At the same time, due to the geometric shape of the spiral structure, the main stirring shaft 2 will generate a component force along the spiral direction on the raw materials around the bottom during the rotation process. This component force causes the raw materials to be pushed to a higher position along the spiral direction of the main stirring shaft 2. When the raw materials move upward along the spiral direction of the main stirring shaft 2, the raw materials will contact and collide with each other. At the same time, due to the rotation of the main stirring shaft 2, the raw materials will be sheared and stretched, which can mix the raw materials. In addition, the spiral structure of the main stirring shaft 2 also enables the raw materials to continuously change direction and position during the movement, further promoting mixing. When the raw materials move to the top of the main stirring shaft 2, they will enter the auxiliary stirring drum 31 along the feeding pipe 4. The auxiliary stirring shaft 3 is also spiral, but it is reversed. Therefore, when the raw materials enter the auxiliary stirring drum 31 from the top of the main stirring shaft 2 through the feeding pipe 4, the spiral structure of the auxiliary stirring shaft 3 will generate a downward pushing force on the raw materials, causing the raw materials to move downward along the spiral direction, and will also be gradually mixed by the spiral stirring of the auxiliary stirring shaft 3 during the movement.

[0033] During the stirring process, since the main stirring shaft 2 is provided with a spiral stirring disk 23 and a spiral inflation disk 24, these two sets of structures can improve the fusion efficiency of the raw materials on the main stirring shaft 2, and when the gas is periodically filled into the inflation chamber 221, the upper spiral disk 241 and the lower spiral disk 242 can be made to reciprocate up and down, thereby achieving a vibrating mixing effect on the raw materials, greatly improving the mixing efficiency of the raw materials in the main stirring shaft 2.

[0034] During the process of filling the gas chamber 221 with gas, since the volume of gas in the cavity connected to the gas chamber 221 increases, the upper spiral disk 241 slides upward and drives the fan-shaped baffle 243 to move to the top of the adsorption magnetic strip 224. At this time, the fan-shaped baffle 243 and the adsorption magnetic strip 224 produce a repulsive force, thereby pushing the fan-shaped baffle 243 outward and connecting the connecting hole 244 with the gas-filling hole 245, so that the gas in the cavity is reduced. As the gas in the cavity is gradually released, the pressure decreases, and the upper spiral disk 241 is affected by the reset spring, so that the upper spiral disk 241 slides and resets to the center of the chute 223. During the sliding process, the fan-shaped baffle 243 is adsorbed and reset by the adsorption magnetic strip 224, and the gas-filling hole 245 is closed. Then the gas in the cavity will gradually increase and repeat the above movement. The lower spiral disk 242 is in the opposite motion state to the upper spiral disk 241. During the inflation process, the upper spiral disk 241 and the lower spiral disk 242 will repeat the above-mentioned movement, which can not only make the upper spiral disk 241 and the lower spiral disk 242 produce higher frequency vibrations, but also fill the raw material with gas through the inflation hole 245, and the inflation hole 245 is connected with the connecting hole 244 when the fan-shaped baffle 243 is subjected to repulsive force and slides outward, so that the inflation process is carried out after the raw material is squeezed by the spiral stirring disk 23 and the spiral inflation disk 24. Because the spiral structure of the spiral inflation disk 24 produces a certain pressure on the raw material, the gas can be more evenly infiltrated into the raw material. In addition, since the inflation process is a cyclical operation, the gas is not filled in a large amount at one time, but is gradually and evenly distributed in the raw material, which further improves the uniformity of the gas. When the upper spiral disk 241 and the lower spiral disk 242 shrink, the raw material volume is stretched again. This process of squeezing and stretching can decompose the large bubbles in the raw material into more small bubbles. The formation of small bubbles increases the number of bubbles while reducing the volume of each bubble. Small bubbles are generated during stirring, so the distribution of bubbles in the raw materials is more uniform and delicate. This dense bubble structure helps to improve the taste and texture of ice cream.

[0035] When the raw material enters the auxiliary stirring shaft 3 from the top of the main stirring shaft 2 through the feed pipe 4, the raw material has been subjected to the spiral stirring and vibration inflation of the main stirring shaft 2, forming a preliminary bubble distribution. However, these bubbles still contain some larger bubbles. When the raw material enters the auxiliary stirring shaft 3 and moves downward along its spiral structure, the squeezing effect on the raw material gradually increases due to the gradual decrease in the spiral pitch. This squeezing effect not only helps to further mix the raw materials, but also squeezes the remaining large bubbles in the raw materials into smaller bubbles. Specifically, when the raw material passes through an area with a smaller spiral pitch, its flow rate will be hindered, causing the raw material to accumulate in this area and be subjected to greater pressure. This pressure effect compresses the large bubbles and decomposes them into more small bubbles. At the same time, as the stirring process continues, these small bubbles will be further evenly distributed in the raw material. This dense bubble structure not only improves the taste and texture of the ice cream, but also makes the ice cream more delicate and smooth.

[0036] During the above stirring process, the auxiliary stirring drum 31 not only stirs and squeezes the raw materials entering it downward through its spiral structure, but also performs circumferential rotation stirring of the raw materials in the stirring chamber 1 through the planetary gear meshing relationship between it, the main stirring drum 21 and the stirring chamber 1. This movement mode is not limited to the auxiliary stirring drum 31 itself, but also drives the raw materials in the surrounding stirring chamber 1 to mix in the circumferential direction through its rotation and movement. It can break the agglomeration and stratification of the raw materials and ensure that the raw materials can be evenly distributed in the stirring chamber 1.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer segmented ice cream stirring device, comprising a stirring chamber (1) and a stirring shaft, wherein the stirring shaft is coaxially rotatably mounted in the stirring chamber (1), characterized in that: The stirring shaft comprises a main stirring shaft (2) and an auxiliary stirring shaft (3). The main stirring shaft (2) and the auxiliary stirring shaft (3) are both in a spiral shape with the same direction. The main stirring shaft (2) is sleeved with a main stirring drum (21), and the auxiliary stirring shaft (3) is sleeved with an auxiliary stirring drum (31). The main stirring drum (21) and the auxiliary stirring drum (31) are connected at the top through a feed pipe (4). The auxiliary stirring drum (31), the main stirring drum (21) and the stirring chamber (1) are meshed in a planetary gear-like manner. The main stirring drum (21) is a sun gear, the auxiliary stirring drum (31) is a planetary gear, and the stirring The mixing chamber (1) is a gear ring, the number of teeth of the main mixing drum (21) is greater than the number of teeth of the auxiliary mixing drum (31), and when the main mixing drum (21) rotates, the auxiliary mixing drum (31) is driven to rotate, and the rotation speed of the auxiliary mixing drum (31) is greater than the rotation speed of the main mixing drum (21); during the mixing process, the main mixing shaft (2) rotates forward and causes its own spiral structure to generate an upward force on the raw material, thereby transporting the raw material from the bottom of the mixing chamber (1) to the top, while the auxiliary mixing shaft (3) rotates reversely and causes its own spiral structure to generate a downward force on the raw material, thereby transporting the raw material transported to the top by the main mixing shaft (2) to the bottom.

2. The multi-layer segmented ice cream stirring device according to claim 1, characterized in that: The main stirring shaft (2) comprises a transmission shaft (22), a spiral stirring disc (23), and a spiral aeration disc (24); the transmission shaft (22) passes through the bottom of the stirring chamber (1), and the bottom of the transmission shaft (22) is connected to a driving structure; the spiral stirring disc (23) and the spiral aeration disc (24) are coaxially mounted on the transmission shaft (22); the spiral stirring disc (23) and the spiral aeration disc (24) have the same spiral direction and pitch; the spiral stirring disc (23) and the spiral aeration disc (24) are equidistantly mounted along the axial direction of the transmission shaft (22); a gas-filled aeration chamber (221) is provided in the transmission shaft (22); the spiral aeration disc (24) comprises an upper spiral disc (241) and a lower spiral disc (242); the upper spiral disc (241) and the lower spiral disc (242) are connected to each other. The lower spiral disk (242) is slidably mounted on the transmission shaft (22); the transmission shaft (22) is provided with an air groove (222) connected to the inflation chamber (221); a cavity is provided between the upper spiral disk (241) and the lower spiral disk (242); the air groove (222) is connected to the cavity; when the cavity is inflated, the upper spiral disk (241) and the lower spiral disk (242) are lifted up to slide; the upper spiral disk (241) and the lower spiral disk (242) are provided with an inflation hole (245) connected to the cavity; the inflation chamber (221) is periodically inflated with gas, so that the upper spiral disk (241) and the lower spiral disk (242) are periodically slid and vibrate; the spiral inflation disk (24) is sealed and connected to the main mixing drum (21).

3. The multi-layer segmented ice cream stirring device according to claim 2, characterized in that: The transmission shaft (22) is provided with a spiral groove (223), the upper spiral disk (241) and the lower spiral disk (242) are slidably installed in the groove (223), and return springs are provided between the groove (223) and the upper spiral disk (241) and the lower spiral disk (242), and fan-shaped baffles (243) are slidably connected in the upper spiral disk (241) and the lower spiral disk (242), and two or more groups of fan-shaped baffles (243) are arranged in an evenly spaced row along the spiral direction. The fan-shaped baffle (243) is provided with a connecting hole (244). When the fan-shaped baffle (243) slides to the outside, the connecting hole (244) is connected to the inflation hole (245). When the fan-shaped baffle (243) slides to the inside, the fan-shaped baffle (243) blocks the inflation hole (245) and closes it. The fan-shaped baffle (243) is made of magnetic material. Two groups of adsorption magnetic strips (224) are provided on the inner wall of the slide groove (223). The top magnetic pole of the upper adsorption magnetic strip (224) is connected to the inflation hole (245). The magnetic poles of the fan-shaped baffle (243) are the same, and the bottom magnetic pole of the upper adsorption magnetic strip (224) is different from the magnetic pole of the fan-shaped baffle (243); the top magnetic pole of the lower adsorption magnetic strip (224) is different from the fan-shaped baffle (243), and the bottom magnetic pole of the lower adsorption magnetic strip (224) is the same as the fan-shaped baffle (243); when the cavity is filled with gas, the upper spiral disk (241) slides upward and drives the fan-shaped baffle (243) to move to the top of the adsorption magnetic strip (224), and the fan-shaped baffle (243) The fan-shaped baffle (243) generates a repulsive force with the adsorption magnetic strip (224), the fan-shaped baffle (243) slides outward and connects the connecting hole (244) with the inflation hole (245), so that the gas in the cavity is reduced, the upper spiral disk (241) slides down, and drives the fan-shaped baffle (243) to slide to the lower end of the adsorption magnetic strip (224), and the adsorption magnetic strip (224) adsorbs the fan-shaped baffle (243) to reset and close the inflation hole (245); the movement state of the lower spiral disk (242) is opposite to that of the upper spiral disk (241).

4. The multi-layer segmented ice cream stirring device according to claim 2, characterized in that: The air groove (222) is arranged in a spiral shape.

5. The multi-layer segmented ice cream stirring device according to claim 1, characterized in that: Two or more groups of the auxiliary stirring shafts (3) are arranged along the circumferential direction of the main stirring shaft (2).

6. The multi-layer segmented ice cream stirring device according to claim 1, characterized in that: The spiral pitch of the auxiliary stirring shaft (3) is a variable pitch, and the variable pitch gradually decreases from top to bottom.

7. The multi-layer segmented ice cream stirring device according to claim 1, characterized in that: The diameter of the main stirring shaft (2) is greater than the diameter of the auxiliary stirring shaft (3), and the length of the main stirring drum (21) is longer than that of the auxiliary stirring drum (31).

8. The multi-layer segmented ice cream stirring device according to claim 1, characterized in that: A top cover (5) is mounted between the auxiliary mixing drum (31) and the feed pipe (4), and the top cover (5) is rotatably connected to the auxiliary mixing drum (31). A sealing cover (6) is arranged between the main mixing drum (21) and the feed pipe (4), and the sealing cover (6) is rotatably connected to the main mixing drum (21).

9. The multi-layer segmented ice cream stirring device according to claim 1, characterized in that: The bottoms of the main mixing drum (21) and the auxiliary mixing drum (31) are connected to the mixing chamber (1).

10. The multi-layer segmented ice cream stirring device according to claim 1, characterized in that: The top of the stirring chamber (1) is provided with a feed port, the tops of the main stirring drum (21) and the auxiliary stirring drum (31) are rotatably connected with a drum cover (7), the feed port is provided on the drum cover (7), and the bottom of the stirring chamber (1) is provided with a discharge hole.

Images