CN221132578U

CN221132578U - Coarse crushing system and soybean milk machine

Info

Publication number: CN221132578U
Application number: CN202322010642.7U
Authority: CN
Inventors: 蔡秀军; 汪涛
Original assignee: Hangzhou Joyoung Soymilk Co ltd
Current assignee: Hangzhou Joyoung Soymilk Co ltd
Priority date: 2023-03-31
Filing date: 2023-07-28
Publication date: 2024-06-14
Anticipated expiration: 2033-07-28
Also published as: CN220496495U; CN117065859A; CN220512187U

Abstract

The application provides a coarse crushing system and a soybean milk machine. The coarse pulverizing system is used for pulverizing bean materials, wherein the coarse pulverizing system comprises: a cup body, the interior of which defines a coarse crushing chamber, and is suitable for accommodating bean materials and water; a pulverizing blade disposed in the coarse pulverizing chamber, the pulverizing blade being rotated by a driving device to cut the beans immersed in water to a first particle size range; and a screening cylinder disposed in the coarse pulverizing chamber, the screening cylinder being disposed around the outer periphery of the pulverizing blade; the screening cylinder is provided with a plurality of screening holes for the bean materials in the first grain size range to pass through, and the screening holes are gradually increased in diameter from the inner side to the outer side of the screening cylinder. The coarse crushing system and the soybean milk machine provided by the application can solve the problems of low crushing efficiency and poor crushing effect, realize slag-free and filtering-free whole soybean utilization, and are easy to clean and improve the nutritive value.

Description

Coarse crushing system and soybean milk machine

Technical Field

The application relates to the technical field of beverage making, in particular to a coarse crushing system and a soybean milk machine.

Background

Commercial soymilk machines currently on the market generally comprise a pulping system, a soymilk and residue separation system and a soymilk boiling system. During operation, the materials such as bean materials are crushed in liquid by a pulping system to form slurry, bean dregs are separated by a pulp-dreg separation system comprising a dreg removing mechanism such as a filter screen, and finally the slurry after the bean dregs are filtered is boiled for drinking. However, the existing commercial soymilk machines have the following problems: firstly, in the process of crushing the bean materials by a pulping system, the crushed bean materials are not discharged in time, but are crushed together with the bean materials which are not crushed, so that the problems of low crushing efficiency and poor crushing effect are caused; secondly, the bean dregs are directly discarded after being separated, and the bean dregs are edible dietary fibers, so that the nutritional ingredients in the bean materials are not fully utilized and waste is caused; in addition, according to the different bean dreg separation technologies, the separation degree of the soybean milk and the bean dreg is different, and under the normal condition, the soybean milk and the bean dreg cannot be completely separated, so that a part of the soybean milk is discarded together with the bean dreg, and waste is caused. Thirdly, the filter screen is inconvenient to clean in the actual use process, is easy to block and damage, and increases the cleaning and maintenance cost.

In view of this, a new solution is needed to overcome the shortcomings of the prior art.

Disclosure of utility model

The application provides a coarse crushing system and a soybean milk machine, which aim to solve the problems of low crushing efficiency and poor crushing effect, realize slag-free and filtering-free whole soybean utilization, and are easy to clean and improve the nutritive value.

In order to achieve the above purpose, the technical scheme adopted by the application is as follows: a coarse pulverizing system configurable in a soy milk machine for pulverizing soy material, the coarse pulverizing system comprising:

A cup body, the interior of which defines a coarse crushing chamber, and is suitable for accommodating bean materials and water;

A pulverizing blade disposed in the coarse pulverizing chamber, the pulverizing blade being rotated by a driving device to cut the beans immersed in water to a first particle size range; and

A screening cylinder disposed in the coarse pulverizing chamber, the screening cylinder being provided around the outer periphery of the pulverizing blade;

Wherein the screen cylinder has a plurality of screen holes for the beans in the first particle size range to pass through.

Optionally, the sieve pores are gradually increased in diameter from the inner side to the outer side of the sieving cylinder.

Optionally, the diameter of the sieve mesh at the inner end of the sieving cylinder is 1.4-2.0mm.

Optionally, the diameter of the sieve mesh at the outer end of the sieving cylinder is 2.5-3.0mm.

Optionally, a plurality of vertically extending turbulence ribs are arranged on the inner side wall surface of the screening cylinder.

Optionally, the screen holes are not formed at positions, corresponding to the turbulence ribs, of the side walls of the screening cylinder.

Optionally, the cup body comprises a cup cover fixed at the top end of the cup body, and the top end of the screening cylinder is in sealing connection with the cup cover.

Optionally, the beans and water are configured to drain into the cup in a predetermined fixed ratio.

Optionally, the ratio of the size of the cup to the size of the screen cartridge is 2-3.

The application also adopts the following technical scheme: a soy milk machine comprising a fine comminution system and a coarse comminution system as described in any of the above; wherein the coarse pulverizing system communicates with the fine pulverizing system via a fluid passage, the fine pulverizing system being adapted to pulverize the beans from the first particle size range to a second particle size range.

The application provides a coarse crushing system, which comprises a cup body, a crushing blade and a screening cylinder, wherein the screening cylinder is arranged in the cup body and is arranged around the periphery of the crushing blade, and the screening cylinder is provided with a plurality of sieve holes for bean materials crushed into a first particle size range to pass through; the arrangement is that the bean materials which are crushed to meet the preset requirement particle size can be discharged outside the screening cylinder, and the bean materials which are not crushed to meet the preset requirement particle size still remain in the screening cylinder and are continuously cut and crushed by the crushing blade; the problems of low crushing efficiency and poor crushing effect caused by common crushing of bean materials with different particle sizes without distinction can be avoided, slag-free filtering-free whole bean utilization can be realized, cleaning is easy, and the nutritive value can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present application and are not limiting of the present application.

Fig. 1 is a schematic system connection diagram of an embodiment of a soy milk machine according to the present application.

Figure 2 is a flow chart of the operation of one embodiment of the soy milk machine of the present application.

Fig. 3 is a perspective view of the whole machine of an embodiment of the soy milk machine according to the present application.

Fig. 4 is a cross-sectional view of the feed system and coarse pulverizing system of an embodiment of the soy milk machine of the present application.

Fig. 5 is an exploded view of the feed system and coarse pulverizing system of an embodiment of the soy milk machine of the present application.

Fig. 6 is a cross-sectional view of a screen drum of a coarse pulverizing system according to an embodiment of the soybean milk machine of the present application.

Fig. 7 is a cross-sectional view of a fine pulverizing system of an embodiment of a soy milk machine in accordance with the present application.

Fig. 8 is a perspective exploded view of a fine pulverizing system of an embodiment of the soy milk machine of the present application.

Fig. 9 is a perspective view of a knife set of a fine grinding system of an embodiment of a soy milk machine in accordance with the present application.

Reference numerals illustrate:

1-a feed system; 11-a hopper; 12-blanking motor; 13-an impeller; 14-a charging barrel; 15-water feeding pump;

2-a coarse crushing system; 21-a coarse grinding motor; 211-mounting rack; 22-cup body; 221-cup holder; 222-cup cover; 23-screening cylinder; 231-mesh; 232-a sealing ring; 233-spoiler ribs; 24-crushing blades; 25-a first valve;

3-defoaming system; 31-defoaming container; 32-a slurry pump;

4-a fine grinding system; 41-a power assembly; 411-finely pulverizing the motor; 412-a transmission mechanism; 42-finely pulverizing the components; 421-upper cover; 4212-big seal ring; 4213-small seal ring; 422-fine powder tray; 4220-chambers; 4221-mounting barrels; 4222-a slurry outlet; 423-fixing the knife; 4230-fine pulverizing cavity; 4231-tooth form; 424-a movable knife; 4240-pulverizing gap; 4241-pulverizing part; 4242-a stop washer; 4243-a mounting portion; 4244-rotating blades; 4245-a limiting hole; 425-a platen; 426—a base; 427-floor; 428-driven pulley; 429-a rotating shaft; 4291-shaft seal; 4292-upper bearing; 4293-lower bearing; 4294-a linkage;

5-a pulp boiling system; 51-a pulp cooking container; 511-a temperature detector; 512-second valve; 513-a third valve; 52-a steam heating device; 521-heating the pipe; 53-water tank; 531-a water level detector;

9-a frame.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the present application will be described in further detail with reference to the accompanying drawings. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Unless defined otherwise, technical or scientific terms used in this patent document should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used merely to denote relative positional relationships, which may be changed accordingly when the absolute position of the object being described is changed, merely to facilitate description of the present application and to simplify description, and not to indicate or imply that the apparatus or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present application are described in detail below with reference to the accompanying drawings. Features of the embodiments described below may be combined with each other without conflict.

Referring to fig. 1 to 9, the present application provides a soymilk machine, which can be used for making soymilk, in particular for making soymilk. The soybean milk, also called unadjusted soybean milk, thick soybean milk and thick soybean milk, refers to a slurry product with a soybean solid content reaching a certain value, such as more than 8%, and is high-quality soybean milk. The soybean milk machine provided by the application can be used for whole beans, filter residues are not needed, and the soybean milk is prepared by preparing common soybean milk and then further preparing the soybean milk. The application provides a soybean milk machine, in particular to a large-capacity commercial or industrial soybean milk machine, which is a machine used in a commercial storefront in many cases and can be used for making soybean milk on site in the commercial storefront, and the industrial soybean milk machine is large-scale equipment arranged in a production factory in many cases and is used for making soybean milk in the factory and selling the soybean milk in the market after packaging finished products. In an embodiment of the application, the soymilk machine comprises a frame 9, and a feeding system 1, a coarse grinding system 2, a defoaming system 3, a fine grinding system 4, a pulp boiling system 5 and an electric control system which are arranged on the frame 9. The following describes the respective systems in a specific embodiment.

Referring to fig. 1 and 3-5, the feeding system 1 is connected to the coarse pulverizing system 2 for feeding bean material and water into the coarse pulverizing system 2. The feeding system 1 comprises a hopper 11 for containing bean materials, a discharging mechanism for discharging the bean materials in the hopper 11 into the coarse crushing system 2, and a water feeding mechanism for adding water into the coarse crushing system 2. The discharging mechanism comprises a charging barrel 14 connected between a discharge hole of the hopper 11 and the coarse crushing system 2, an impeller 13 arranged in the charging barrel 14 and a discharging motor 12 for driving the impeller 13 to rotate so as to discharge bean materials. The hopper 11 is a conical funnel shape, the discharge port is connected with a charging barrel 14 of the discharging mechanism by a clamp, and the discharging motor 12 drives an impeller 13 arranged in the charging barrel 14 to rotate so as to pull down bean materials. The blanking motor 12 does not drive the impeller 13 to rotate, so that blanking is not performed, and control of blanking and stopping blanking is facilitated. The water feeding mechanism includes a water tank 53 and a water feeding pump 15 that pumps water from the water tank 53 and feeds the water into the coarse pulverizing system 2. While the bean material falls into the coarse pulverizing system 2, the water feeding pump 15 draws water amount matching the amount of the discharged material from the water tank 53 into the cartridge 14, and enters the coarse pulverizing system 2 together with the bean material. Wherein, the blanking amount of the blanking mechanism to the coarse crushing system 2 each time and the water feeding amount of the water feeding mechanism to the coarse crushing system 2 each time are in a preset fixed proportion. By setting the bean blanking amount and the water inflow amount each time to be a fixed proportion, the working load of the coarse crushing system 2 can be kept constant, and the working time is kept constant; and because the fluidity of water is better than that of beans, the residual water is removed firstly, so that the pipelines and containers in the later stage of pulping are easily blocked by bean dregs. In a specific embodiment, the matching of the discharging amount and the water feeding amount can be achieved by controlling the rotation speed of the discharging motor 12 to match with the flow of the water feeding pump 15, specifically, a flowmeter can be arranged on the water feeding pump 15, or the water feeding pump 15 adopts a self-sucking pump, and the amount of the bean material is synchronously matched through time or flow, so that a constant bean water ratio is achieved, and the bean material enters the coarse crushing system 2.

With continued reference to fig. 1 and 3-5, the coarse pulverizing system 2 is adapted to pulverize the soy material to a first particle size range to produce a first slurry. The coarse pulverizing system includes a cup 22, a screening drum 23, a pulverizing blade 24, and a second power source for driving the pulverizing blade 24 to rotate. In this embodiment, the second power source is the coarse pulverizing motor 21. The cup 22 defines a coarse pulverizing chamber therein for accommodating the bean material and water, and the pulverizing blade 24 is provided in the coarse pulverizing chamber to be rotated by a rotational power from the coarse pulverizing motor 21 to cut the bean material immersed in the water to a first particle size range. The cup 22 comprises a cup holder 221 and a cup cover 222, wherein the cup holder 221 is fixed at the bottom end of the cup 22, and the cup cover 222 is fixed at the top end of the cup 22. The coarse grinding motor 21 is arranged below the cup holder 221 and fixed on a mounting frame 211 of the motor, and an output shaft of the coarse grinding motor 21 is connected with a grinding blade 24 positioned in the cup 22. The screening cylinder 23 is located in the cup 22 and is disposed around the outer periphery of the pulverizing blade 24, and the screening cylinder 23 has a plurality of mesh holes 231 through which the beans of the first particle size range pass. The bean materials crushed to the first particle size range can pass through the sieve holes 231 on the sieving cylinder 23 and be discharged outside the sieving cylinder 23; the soybean material which has not been pulverized into the first particle size range remains in the sieve drum 23 and is cut and pulverized by the pulverizing blade 24. The problem that the crushing efficiency is low, the crushing effect is poor that the common crushing of beans material that can avoid different particle diameters size does not distinguish ground is set up like this, can realize no sediment and exempt from to strain, and whole beans are utilized to easily clean, and can promote nutritive value. In an embodiment, the first particle size range is not more than 1000 μm, preferably the first particle size range is 400-800 μm. A sealing ring 232 is further arranged between the upper end surface of the screening cylinder 23 and the cup cover 222, and the sealing ring 232 is pressed between the cup cover 222 and the upper end surface of the screening cylinder 23 to realize sealing. Referring to fig. 6, the screen holes 231 are bell mouth-shaped, and the screen holes 231 are gradually increased in diameter from the inside to the outside of the screen cylinder 23; the arrangement is such that the beans which satisfy the first particle size range and can be discharged from the inside to the outside of the sieve holes 231 are quickly separated from the sieve holes 231, and the beans are prevented from being blocked in the sieve holes 231. The wet bean particles are typically 9-16mm, and for compatibility with smaller particle food materials, such as sesame, typically around 2mm, the diameter of the mesh openings 231 is preferably sized to be no greater than 2mm to ensure that the food material does not flow out of the mesh openings 231 as much as possible prior to comminution. Meanwhile, when the diameter of the mesh 231 is smaller than 1.4mm, accumulation of tiny okara is easy to cause hole blocking after long-time work. Therefore, in the present embodiment, the diameter of the mesh 231 at the inner end of the screen cylinder 23 is set to 1.4 to 2.0mm, and the diameter of the mesh 231 at the outer end is set to 2.5 to 3.0mm. In this embodiment, the cup 22 and the screening cylinder 23 are both cylindrical, and the ratio of the size of the cup 22 to the size of the screening cylinder 23 is 2-3. The capacity of the cup 22 and the capacity of the screen cylinder 23 are so set that the pulverizing space in the screen cylinder 23 matches the space for discharging the slurry outside the screen cylinder 23, and the problem that the screen cylinder 23 is limited in pulverizing space due to too small an inside and too large an outside, and the slurry discharged due to too large an inside and too large an outside is limited in space and is liable to flow back into the screen cylinder 23 again can be avoided.

In order to make the slurry well disturbed and mixed during the process of crushing the bean material and stirring the slurry by the crushing blade 24, so as to increase the crushing efficiency, the inner side of the screening cylinder 23 is further provided with a plurality of turbulence ribs 233 extending vertically along the wall surface of the inner side. In this embodiment, the spoiler 233 is provided in 4 strips. The screen holes 231 are not provided at positions of the side walls of the screening cylinder 23 corresponding to the spoiler ribs 233. Because the slurry flows in the turbulence ribs 233 more irregularly, if the screen holes 231 are formed in the vicinity of the turbulence ribs 233, on one hand, the bean materials which do not meet the discharge particle size range enter the screen holes 231 under the impact of turbulence, so that the screen holes 231 are easily blocked, or the bean materials which do not meet the discharge particle size range are discharged; on the other hand, the disturbed slurry can make the slurry outside the sieving cylinder 23 flow back to the sieving cylinder 23 through the sieve holes 231, which is not beneficial to improving the pulverizing efficiency.

The first slurry formed after the coarse crushing system 2 is soybean milk, and can be boiled and drunk under the condition of filter residue or no filter residue. However, the first slurry has low solid content and low nutritive value, and if the first slurry is not drunk after filtering, the first slurry has obvious slag feel and bad taste, and if the first slurry is drunk after filtering, the bean dregs are wasted, so that the whole beans cannot be utilized. In the technical scheme of the application, the slurry crushed by the coarse crushing system 2 is further processed, and the following detailed description is provided.

The coarse pulverizing chamber of the coarse pulverizing system 2 is connected to the defoaming system 3 via a first valve 25. When the coarse grinding system 2 starts to work, a first valve 25 connected with the bottom of the cup body 22 is closed, the coarse grinding motor 21 is started to work to drive the grinding blade 24 to rotate so as to grind the beans immersed in the screening cylinder 23, after the beans are ground to the diameter smaller than that of the screen holes 231, the beans flow out of the screening cylinder 23 under the action of rotating centrifugal force, repeated grinding of the beans is realized through turbulent flow until the size of the beans in the slurry meets a first particle size range, and then the coarse grinding stage is ended; when one coarse pulverizing cycle is completed, the first valve 25 at the bottom of the cup 22 is opened, and the first slurry formed by pulverizing is discharged from the cup 22 to the defoaming system 3.

Referring to fig. 1 and 3, the defoaming system 3 includes a defoaming container 31 and a slurry pump 32. The defoaming container 31 is used for eliminating bubbles in the slurry, so that the problem of overflow during the slurry boiling process can be solved. The coarse grinding system 2 outputs the first slurry to the defoaming container 31, and the coarse grinding system 2 is communicated with the slurry boiling system 5 and the fine grinding system 4 through the defoaming container 31. The defoaming container 31 has a liquid inlet and a liquid outlet, the liquid inlet is disposed above the liquid outlet, and the liquid outlet is disposed at the bottom of the defoaming container 31; the arrangement is such that the foam in the pulp floats above and is not pumped from the outlet by the pulp pump 32 into the pulp cooking system 5.

With continued reference to fig. 1 and 3, the pulp boiling system 5 is configured to heat the pulp, where the pulp boiling system 5 may heat the pulp during the grinding process of the bean material, such as the first pulp after coarse grinding or the pulp during the circulating fine grinding process; the pulp cooking system 5 may also heat the ground soy milk that may be discharged for consumption. The heating purposes of the slurry in different stages are different, for example, the slurry in the process of crushing the bean materials is heated to expand the crushed bean materials, so that the subsequent crushing is facilitated, and the crushed bean materials are finer in particles; the crushed slurry which can be discharged for drinking is heated and boiled to meet the drinking requirement. In this embodiment, the pulp boiling system 5 is configured to coarsely crush the coarse crushing system 2 and heat the first slurry after defoaming in the defoaming system 3, so that the soybean particles in the first particle size range in the first slurry are expanded by heating, so that the fine crushing system 4 performs fine crushing. The pulp boiling system 5 is communicated with the fine grinding system 4 through a second valve 512 so as to discharge the heated first pulp to the fine grinding system 4. The soybean milk boiling system 5 is further used for boiling the soybean milk crushed by the fine crushing system 4 and discharging the soybean milk through the third valve 513 for users to drink. In this embodiment, the first valve 25, the second valve 512 and the third valve 513 are all electric ball valves, and are controlled to be opened and closed by an electric control system.

Specifically, the boiling system 5 includes a boiling vessel 51 for boiling soybean milk, a steam heating device 52, and a water tank 53. The pulp boiling container 51 is provided with a temperature detector 511 for detecting the temperature of the pulp in the pulp boiling container 51; the pulp cooking container 51 is communicated with the fine grinding system 4 through the second valve 512, and is communicated with a drinking port through the third valve 513. The capacity of the defoaming container 31 is far smaller than that of the pulp boiling container 51, so that the first pulp after coarse crushing and defoaming is prepared in a small quantity and multiple times and is collected in the pulp boiling container 51 for boiling. In this embodiment, the capacity of the de-foaming vessel 31 is less than 1/5 of the capacity of the cooking vessel 51. The steam heating device 52 is used for delivering high-temperature steam into the soymilk boiling container 51, heating the soymilk by adopting the high-temperature steam to ensure uniform heating, and can drive the soymilk to roll over, thereby preventing the soymilk from generating scorching and sticky during heating. The steam heating device 52 is connected with the water tank 53, and a heating pipe 521 is arranged in the steam heating device 52 to heat the liquid to generate steam. The water tank 53 is provided with a water level detector 531, and a valve which can be automatically opened and closed according to the water level in the steam heating device 52 is arranged between the water tank 53 and the steam heating device 52, so that the water in the water tank 53 can be automatically supplied to the steam heating device 52. The automatic replenishment can be realized by the control of the electric control system according to the water level detected by the water level detector 531, and can also be realized by a floating ball type mechanical water inlet mechanism.

Referring to fig. 1 and 7-9, the cooking vessel 31 is in communication with the fine pulverizing system 4, and the fine pulverizing system 4 is adapted to pulverize the soy material from the first particle size range to a second particle size range to produce soy milk. The fine grinding system 4 communicates with the pulp cooking vessel 31 via the defoaming vessel 31 to achieve cyclic fine grinding. The fine grinding system 4 is configured to further grind the bean material particles in the heated coarsely ground first slurry to form a fine ground slurry, the fine grinding system 4 being connected to the pulp boiling system 5 by a circulation line to convey the fine ground slurry to the pulp boiling system by the circulation line. The coarse pulverizing system 2 communicates with the fine pulverizing system 4 via a fluid passage, and the fine pulverizing system 4 includes a power assembly 41 and a fine pulverizing assembly 42. The fine pulverizing assembly 42 includes a stationary knife 423 having an annular inner wall defining a fine pulverizing chamber 4230; and a movable blade 424 driven by rotational power from the first power source, the power assembly 41, the movable blade 424 being formed with a crushing portion 4241 at a distal end away from the rotational axis thereof. Wherein the movable knife 424 is received in the fine pulverizing chamber 4230 and defines a pulverizing gap 4240 between the pulverizing portion 4241 thereof and the annular inner wall adapted to pulverize the bean material. The movable knife 424 is configured to apply a frictional shear force to grind the beans in the grinding gap 4240 to the second particle size range. The movable blade 424 includes at least two rotating blades 4244 intersecting at a rotational axis thereof. The annular inner wall is uniformly provided with a plurality of tooth-shaped portions 4231 along the circumferential direction thereof, and a crushing gap 4240 is defined between the tooth-shaped portions 4231 and the crushing portion 4241. The crushing gap is smaller than 0.1mm; preferably, the crushing gap is 0.02-0.08mm; still preferably, the crushing gap is 0.06mm. This causes the beans to be crushed into smaller sized particles that exit the fine crushing chamber 4230. In one embodiment, the second particle size range of the finely ground soy material is 50-100 μm.

The power assembly 41 includes a fine grinding motor 411 and a transmission mechanism 412, in this embodiment, the fine grinding motor 411 is an ac asynchronous motor, and the transmission mechanism 412 is a belt transmission mechanism, and the ac asynchronous motor is in transmission connection with the movable knife 424 through the belt transmission mechanism. In this embodiment, the power unit 41 and the fine pulverizing unit 42 may be arranged side by side in the lateral direction by a belt transmission mechanism, and the height of the fine pulverizing system 4 may be reduced.

The fine grinding assembly 42 comprises an upper cover 421, a fine powder disk 422, a fixed knife 423 arranged in the fine powder disk 422 and in a ring shape, and a movable knife 424 arranged in the fixed knife 423 and driven to rotate by a rotating shaft 429, wherein a plurality of slurry outlet gaps penetrating inside and outside are arranged on the side wall of the fixed knife 423, a protruding edge is formed at one end of the slurry outlet gap positioned on the inner side of the side wall of the fixed knife 423, the protruding edge forms a tooth-shaped part 4231, a grinding part 4241 at the free end of the movable knife 424 is a cutting edge, a wedge-shaped area is formed between the cutting edge and the fixed knife 423, bean materials are collected in the wedge-shaped area and are sheared and ground by friction of the cutting edge and/or the protruding edge, and then discharged to a cavity 4220 from the slurry outlet gap, and the cavity 4220 is provided with a slurry inlet communicated with a slurry boiling container 51 and a slurry outlet 4222 communicated with the defoaming container 31. The width of the pulp outlet gap is 0.12-0.15mm, the minimum distance between the cutting edge of the movable knife 424 and the fixed knife is not more than 0.05mm, and the linear speed of the cutting edge of the movable knife 424 is not less than 50m/s; through the matching arrangement of the sizes and the linear speed, the grain size of the soybean materials in the prepared soybean milk is 50-90 mu m, and the soybean milk has no slag in taste. In this embodiment, the diameter of the chamber 4220 is 100-140mm, and the diameters of the pulp inlet and the pulp outlet are 20-30mm. The upper cover 421 and the fine powder disk 422 are connected in a sealing way through a large sealing ring 4212, so that slurry is prevented from leaking out of the cavity 4220 from a gap between the upper cover 421 and the fine powder disk 422; the upper cover 421 and the fixed blade 423 are connected by a small sealing ring 4213 in a sealing manner, so as to prevent the bean materials in the fine crushing cavity 4230 from leaking into the cavity 4220 through the gap between the upper cover 421 and the fixed blade 423.

The movable knife 424 includes a mounting portion 4243 and a plurality of rotary blades 4244 radially extending from the mounting portion 4243, the mounting portion 4243 is provided with a shaft hole into which an upper end portion of the rotary shaft 429 is inserted and a limiting hole 4245 located above the shaft hole, a limiting washer 4242 is mounted in the limiting hole 4245, and the limiting washer 4242 is circumferentially and limitedly disposed in the limiting hole 4245, so as to prevent relative rotary motion of the limiting washer 4242 around an axis of the rotary shaft 429 relative to the limiting hole 4245. The stop washer 4242 is a non-circular structure, in this embodiment a racetrack shape. The shaft hole is in interference fit with the rotating shaft 429, and the limiting washer 4242 is in clearance fit with the limiting hole 4245. The movable knife 424 is prevented from flying upwards by the non-circular limiting washer 4242 by the interference fit of the shaft hole and the rotary shaft 429.

The rotation shaft 429 is driven by a belt transmission mechanism comprising a driving pulley connected to the output end of the fine pulverizing motor 411, a driven pulley 428 connected to the rotation shaft 429, and a transmission belt connected to the driving pulley and the driven pulley. The fine powder tray 422 comprises a vertically downward extending mounting cylinder 4221, the upper end of the rotating shaft 429 is mounted in the mounting cylinder 4221 through an upper bearing 4292, a shaft seal 4291 is arranged above the upper bearing 4292, and a pressing plate 425 is pressed and connected above the shaft seal 4291; the fine grinding assembly 42 further comprises a mounting seat fixed on the lower side of the fine powder disk 422, and the lower end of the rotating shaft 429 is embedded in the mounting seat through a lower bearing 4293; the mounting seat comprises a seat body 426 and a bottom plate 427, a space is formed between the seat body 426 and the bottom plate 427, the driven belt pulley 428 is sleeved on the rotating shaft 429 and positioned in the space between the seat body 426 and the bottom plate 427, and the driven belt pulley 428 is connected with the rotating shaft 429 through a connecting key 4294 and positioned between the upper bearing 4292 and the lower bearing 4293. In this embodiment, the belt transmission mechanism is used to drive the movable knife 424 to rotate, the belt applies force to the lower middle portion of the rotating shaft 429, so that the force applied by the belt to the rotating shaft 429 tends to tilt the rotating shaft 429, which causes the movable knife 424 to tilt, so that the crushing gap 4240 between the movable knife 424 and the fixed knife 423 is uneven in the circumferential direction, which affects the crushing efficiency, and the movable knife 424 may strike the fixed knife 423 when rotating at a high speed; in this embodiment, by providing the upper and lower bearings 4292, 4293 and positioning the driven pulley 428 connected by the belt between the upper and lower bearings 4292, 4293, the stress of the rotating shaft 429 is balanced and dispersed, so as to ensure the coaxiality of the movable knife 424 installed in the fixed knife 423, and improve the crushing effect.

Referring to fig. 2, the pulping process of the soybean milk machine provided by the application is as follows: bean materials are added into a hopper 11 of the feeding system 1, and water feeding and discharging actions are executed after the machine is started so as to input the bean materials and the water into the coarse crushing system 2; after the coarse grinding system 2 finishes grinding, the first valve 25 is opened, and the slurry is discharged to the defoaming container 31; the pulp pump 32 is started to pump the pulp into the pulp boiling container 51, and steam is generated by the steam heating device 52 and is conveyed into the pulp boiling container 51 to heat the pulp; after the heating is finished, the second valve 512 is opened, the pulp is discharged to the fine grinding assembly 42 for fine grinding, and the pulp after fine grinding is discharged to the defoaming container 31 for defoaming and the bean dregs in the defoaming container 31 are washed away; the finely crushed slurry in the defoaming container 31 is recycled through the slurry pump 32 to be circularly finely crushed in the slurry boiling container 51 and the finely crushing component 42, and the circulation times can be preset or can be determined according to the detected crushing effect parameters of the slurry; after the fine crushing is finished, the third valve 513 is opened to discharge the slurry to the drinking port for the user to drink.

As can be seen from the above description of the specific embodiments, the coarse grinding system of the soybean milk machine provided by the present application includes a screening cylinder, so that the soybean material ground to the particle size meeting the preset requirement can be discharged outside the screening cylinder, while the soybean material not ground to the particle size meeting the preset requirement remains in the screening cylinder and is continuously cut and ground by the grinding blade; the problems of low crushing efficiency and poor crushing effect caused by common crushing of bean materials with different particle sizes without distinction can be avoided, slag-free filtering-free whole bean utilization can be realized, cleaning is easy, and the nutritive value can be improved. According to the soybean milk machine provided by the application, the coarse crushing system 2 and the fine crushing system 4 which are separately arranged are adopted, the coarse crushing system 2 crushes soybean materials to a first particle size range to prepare soybean milk, then the soybean milk is conveyed to the fine crushing system 4 through a fluid channel, the fine crushing system 4 further crushes the soybean materials from the first particle size range to a second particle size range to prepare the soybean milk, and the problems that the crushing efficiency is low, the particle size of the soybean materials in the prepared slurry is large, filter residues are required for drinks, the soybean materials cannot be fully utilized and the machine is difficult to clean due to the fact that the coarse crushing and the fine crushing are carried out in the same chamber are avoided; the fine grinding system 4 comprises a fixed knife 423 with an annular inner wall and a movable knife 424 received in the annular inner wall, wherein a grinding gap 4240 suitable for grinding bean materials is defined between a grinding part 4241 of the movable knife 424 and the annular inner wall, the structure can enable the bean materials to be ground more finely, and the fine grinding system has the functions of no slag, no filtering, easy cleaning, full bean utilization, solid content increase in the bean milk and taste and nutritive value improvement of the bean milk.

The application also discloses a soy milk manufacturing method and soy milk manufactured by the method, and the soy milk manufacturing method is executed by the soy milk machine. As shown in fig. 2, the method includes: coarsely pulverizing soybean material to a first particle size range in a coarse pulverizing system 2 to make soybean milk; the soy milk is discharged through the fluid channel into a fine grinding system 4, where the soy material is ground from the first particle size range to a second particle size range to produce soy milk. Further, the method further comprises: the soybean milk is discharged into the fine grinding system 4 after being heated. The soybean milk is heated and then finely crushed, so that the soybean material with the first particle size range is heated and expanded, and the soybean material is crushed to be finer in the fine crushing process. In the soybean milk manufacturing method, soybean materials are subjected to normal-temperature coarse grinding, and then pulp and dreg are boiled together, so that the soybean dreg is thoroughly cooked and then finely ground to soften plant fibers in the soybean dreg, and compared with a cold pulp fine grinding process, the cooked pulp fine grinding is finer. Moreover, the viscosity of the raw soybean milk is higher than that of the cooked soybean milk, the load of the raw soybean milk fine grinding is larger than that of the cooked soybean milk fine grinding, and the load of the cooked soybean milk fine grinding can be reduced. On the other hand, the raw bean dregs are boiled to be the bean dregs, and the granules are heated to expand, so that the fine crushing is facilitated; after heating and fine crushing, the bean dregs can not expand and enlarge, and the discharged soybean milk meets the requirements of no-dreg mouthfeel. Further, the method further comprises: and defoaming the soybean milk and then heating. The problem that the soybean milk is easy to overflow when being heated due to excessive foam can be relieved by reheating the soybean milk after defoaming.

In one embodiment of the application, a commercial soy milk machine may throw 7kg wet beans, 21kg water, and produce 30kg soy milk in a single pass. After coarse grinding 75% of the particle size is distributed at 600 microns. After fine grinding, 75% of the grain size is distributed at 89 microns, the 100-mesh slag content of the produced soybean milk is less than 40g, the soybean milk has no slag feel when drunk, wherein the solid content of the soybean milk is 8.0-8.5g/100mL, and the soybean milk meets the pure soybean milk standard issued by the agricultural and forestry province in Japan and the pure soybean milk standard GB/T30885-2014 in China. The soybean milk prepared by the method is emulsion slurry with solid content more than 8% and no slag in taste. It should be noted that, the solid content of the soybean milk manufactured by commercial soybean milk machine on the market is generally 3.0% -5.5%, and is difficult to reach higher solid content, while the soybean milk manufactured by the soybean milk machine or the soybean milk manufacturing method provided by the application can manufacture the slurry with full soybean utilization, mellow and thick taste and higher solid content, and the soybean milk disclosed by the application should not be mechanically interpreted as the slurry with the solid content of soybean being more than 8%, and the solid content of the soybean milk is obviously higher than that of the soybean milk on the market, for example, can be interpreted as the soybean milk disclosed by the application by more than 7%.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims

1. A coarse pulverizing system for pulverizing a soybean material, the coarse pulverizing system comprising:

The screening cylinder is provided with a plurality of screening holes for the bean materials in the first grain size range to pass through, and the screening holes are gradually increased in diameter from the inner side to the outer side of the screening cylinder.

2. The coarse pulverizing system of claim 1, wherein the first particle size range is 400-800 μm.

3. The coarse pulverizing system of claim 1, wherein the diameter of the mesh at the inner end of the screen cylinder is 1.4-2.0mm.

4. The coarse pulverizing system of claim 1 wherein the diameter of the mesh at the outboard end of the screen cylinder is 2.5-3.0mm.

5. The coarse pulverizing system of claim 1, wherein a plurality of vertically extending turbulence bars are disposed on an inner sidewall surface of the screen cylinder.

6. The coarse pulverizing system of claim 5, wherein said screen openings are not provided in the side walls of said screen cylinder at positions corresponding to said turbulators.

7. The coarse pulverizing system of claim 1 wherein the cup includes a cap secured to a top end of the cup, the top end of the screen cartridge being sealingly connected to the cap.

8. The coarse pulverizing system of claim 1, wherein the ratio of the size of the cup to the size of the screen cylinder is 2-3.

9. A soy milk machine comprising a fine comminution system and a coarse comminution system according to any of claims 1 to 8; wherein the coarse pulverizing system communicates with the fine pulverizing system via a fluid passage, the fine pulverizing system being adapted to pulverize the beans from the first particle size range to a second particle size range.