WO2021208196A1

WO2021208196A1 - New-type feeding and puffing device and ice cream machine having same

Info

Publication number: WO2021208196A1
Application number: PCT/CN2020/092557
Authority: WO
Inventors: 王新兵
Original assignee: 广州市广绅电器制造有限公司
Priority date: 2020-04-13
Filing date: 2020-05-27
Publication date: 2021-10-21
Also published as: CN111513171A

Abstract

Disclosed is a feeding and puffing device. The feeding and puffing device comprises a main body (1) provided with a mixing inner cavity. One end of the main body (1) is provided with an air inlet (1-1) in communication with the mixing inner cavity, the side wall of the main body (1) is provided with at least one feeding port (1-2) in communication with the mixing inner cavity, and the main body (1) is provided with a mixture outlet (1-3); the feeding port (1-2) is provided with a movable blocking member (2) pivoted to the main body (1), and the movable blocking member (2) can movably block or open the feeding port (1-2) without being controlled by a special driving device; and air enters the mixing inner cavity through the air inlet (1-1), liquid ice cream materials enable, by means of the gravity of the liquid ice cream materials and/or the liquid level pressure, the movable blocking member (2) to open so as to enter the mixing inner cavity via the feeding port (1-2), and the pressure of the air-liquid mixture in the mixing inner cavity pushes the movable blocking member (2) to block the feeding port (1-2). The device has a simple and convenient structure, is low-cost, and is easily cleaned and maintained, while also improving the ice cream puffing efficiency and effect.

Description

A new type of feeding puffing device and ice cream machine with the device

Technical field

The invention relates to the technical field of ice cream machines, in particular to a feed puffing device and an ice cream machine with the device.

Background technique

There are several ways of puffing traditional ice cream machines:

1. Without aeration device, the liquid ice cream material enters the freezing cylinder freely from the material bowl for refrigeration. The puffed air volume of the liquid ice cream in the freezing cylinder is the air volume in the liquid ice cream material. Although this method does not increase the components and costs, the ice cream air The content is low, resulting in a low puffing rate of ice cream;

2. It is equipped with an expansion rod and a vent on the top. Using the chimney principle, the liquid raw material and air can enter the freezing cylinder freely. Although the inlet hole smaller than the lower material hole of the material bowl can control the flow rate of the inlet material, it can freely enter the freezing cylinder at the same time. Part of the air, but due to the free intake of air, no pressure can be formed in the freezing cylinder, and the increase in the puffing rate of ice cream is small;

3. Air is injected into the freezing cylinder by an air pump. The liquid ice cream material enters the freezing cylinder from the bottom hole of the powder bowl. The air is directly mixed with the liquid ice cream material in the freezing cylinder. The advantage is that the puffing effect can be improved to a certain extent, and the cost is relatively low. The disadvantage is that the air in the freezing cylinder escapes from the material bowl due to the communication between the freezing cylinder and the material bowl inlet/outlet hole. It is difficult to reach a large pressure in the freezing cylinder, so the expansion effect is difficult to further improve; at the same time, When the ice cream in the freezing is aerated, mixed and puffed, the volume of the ice cream in the freezing cylinder will be relatively increased, and the freezing cylinder is connected to the inlet of the bowl. When the air intake is not well controlled, it will lead to the shape after volume expansion. The solid ice cream will return to the feed hole of the bowl; therefore, when the ice cream machine needs to be fed from the feed hole of the bowl at the same time, it will prevent the liquid ice cream from entering, which will cause the freezing tank or the difficulty of discharging; In addition, when the ice cream material in the freezing cylinder reaches a certain pressure, or when the air pump stops, the ice cream material returns to the air intake pipe in a reverse direction, which causes the air intake pipe to be blocked and affects the subsequent air entry;

4. The air pump is used to inject air into the feeding hole of the material bowl, and the liquid ice cream material enters the freezing cylinder through the feeding hole of the material bowl. Since the air of the air pump enters through the feeding hole and the raw materials together, the air of the air pump is entering the freezing The cylinder is discharged from the feed port at the same time, and it is difficult to reach a large pressure in the freezing cylinder, so the expansion effect is difficult to further improve; at the same time, because the feed and intake share the feed hole of the material bowl, it is easy to prevent it when air is fed in. The feeding of liquid ice cream material, which leads to the freezing tank;

5. After the mechanical pump draws the material from the material bowl and mixes the air, the mixed body is squeezed into the freezing cylinder through the discharge hole. It is equipped with a special gear or piston structure suction pump to pump out the liquid ice cream material and mix it with the air entering the pump body. The exhaust pipe of the pump body and the feed hole of the bowl form a sealed channel to make the exhaust pipe of the pump body. , The material hole from the material bowl to the inside of the freezing cylinder forms a closed space. The higher pressure can be formed by the continuous pressurization of the pump body. Its advantage is that the mixed higher pressure mixed liquid can be injected into the freezing cylinder. High expansion rate, stable feeding and large output; its shortcomings are: the pump body requires high tightness, complex structure, high processing accuracy, and requires a special high-power motor (usually equipped with a deceleration mechanism) to drive the pump body to run This solution has high cost, inconvenient installation, cleaning and maintenance of the mechanism, and a large increase in the cost of ice cream machine equipment; at the same time, because the driving mechanism and pump body need to be lubricated and sealed, the failure of its components will lead to food contamination of the ice cream material, causing Serious food safety issues.

6. The Chinese invention patent document with publication number CN108991218A discloses an automatic opening and closing puffing tube device of an ice cream machine, which includes a hopper provided with a material hole, and a mixing cylinder connected with the hopper through a feeding pipe, and the hopper is installed through the material hole. There is a control valve used to control the flow of food materials in the hopper into the mixing tank. The control valve includes a valve body and a spool that is movably sleeved in the valve body. The control valve is provided with an intake pipe for ventilating the mixing tank. The control valve can Pneumatic device, electromagnetic drive device or electric device drive to open and close the passage of food raw materials in the hopper to the mixing tank. Through the above structure, the function of automatically closing the milk mixture passage between the air intake pipe and the mixing tank can be realized. When the control valve is opened, the movement of the valve core is controlled by a pneumatic device, an electromagnetic drive device or an electric device, so that the milk mixture can pass through the control valve Enter the mixing tank, and after the addition is completed, drive the control valve to close, and close the channel into the mixing tank. This method requires the use of a special drive device to control the opening and closing of the valve, which leads to the disadvantages of complex structure, easy damage to the valve drive device, inconvenient maintenance and cleaning, and the failure of its components due to the need for lubrication and sealing of the drive mechanism and valve body It will cause food pollution to the ice cream material and cause serious food safety problems; at the same time, the air intake and the feed in this way are separate channels, and the raw materials cannot be pre-compressed and mixed with air before entering the freezing cylinder, so it cannot be better. Improve the puffing rate and taste of ice cream. The feeding method of this method is still the free flow of liquid ice cream to the mixing tank (freezing tank). The feeding speed of this feeding method is slow, and when there is a certain pressure in the freezing tank, it will inevitably cause feeding difficulties and cause the freezing tank And other issues.

Summary of the invention

In view of this, in order to solve the problems in the prior art, the present invention proposes a new type of feeding puffing device and an ice cream machine with the device. The ice cream material can be pre-mixed with air before entering the freezing cylinder. It can ensure that a certain pressure is formed in the freezing cylinder, and it is convenient for the liquid ice cream to enter the freezing cylinder when the air injection is stopped. The feeding puffing device of the present invention greatly improves the ice cream puffing efficiency and effect, and can effectively reduce the cost, and the structure is simple and easy Cleaning and maintenance.

The present invention solves the above-mentioned problems through the following technical means:

A new type of feed puffing device includes a main body provided with a mixing cavity, one end of the main body is provided with an air inlet communicating with the mixing cavity, and the side wall of the main body is provided with at least one mixing cavity The main body is provided with a mixed material outlet; the main body is provided with a movable baffle pivotally connected to the main body. Air enters the mixing cavity through the air inlet, and the liquid The ice cream material enters the mixing cavity through the inlet through its own gravity and/or liquid level pressure; the pressure in the mixing cavity pushes the movable stopper to block the inlet, and the movable stopper does not require special The driving device can movably block or open the feed port.

Further, the movable stop is an elastic stop integrally formed at the inlet of the main body or the movable stop is hinged to the inlet of the main body. When articulation is adopted, either a common articulation method can be used, or an elastic piece or a spring for resetting the movable stopper can be installed at the hinged joint to form an elastic stopper.

Further, the movable stopper is a sheet-shaped movable stopper.

Further, the movable baffle is a stainless steel, plastic or silicone movable baffle.

Further, a sealing strip is provided on the side of the movable baffle facing the feed opening or the side of the feed opening facing the movable baffle.

Further, as a preferred manner, the movable stopper has an inclined opening angle with respect to the feed port under the condition of no pressure.

As another feasible implementation manner, the movable stopper can also close the feed inlet when there is no pressure. When feeding is required, the liquid ice cream material opens the movable stopper by its own gravity and/or liquid level pressure. It enters the mixing cavity through the feed port, and when a certain amount of air is introduced into the mixing cavity, the pressure is increased to a certain level and then the movable stopper is closed.

Further, there are two or more feed ports, and the feed ports are distributed on the side wall of the main body.

Further, one end of the main body is an end cover, the end cover is detachably connected to the main body in a sealed manner, and a plurality of sealing rings are provided where the end cover and the main body are attached.

Further, an adjustable exhaust valve is also provided on the novel feed puffing device.

Further, the exhaust valve includes an exhaust hole opened on a pipe between the lower part of the air inlet of the main body and the upper part of the end cover, and an annular groove is provided on the side wall of the pipe, and the exhaust The hole is opened at the bottom of the annular groove and communicated with the inside of the pipe part, and an elastic rubber ring is sleeved on the annular groove.

An ice cream machine at least includes the novel feed puffing device, a material bowl, a freezing cylinder, and an air pump as described in any one of the above. The novel feed puffing device is placed in the bowl, and the novel feed puffing device outputs The material port is in sealed communication with the material bowl discharge port and the refrigerating cylinder input port, and the air pump is communicated with the air inlet of the main body through an air inlet pipe. A one-way valve is installed on the intake pipe, and the exhaust valve can also be installed on the intake pipe or the lower part of the main body.

Compared with the prior art, the beneficial effects of the present invention are as follows:

The present invention mixes the ice cream material flowing in through the inlet with air in the mixing cavity of the main body, and obtains different feeding amounts or feeding speeds through different opening and closing or opening angles of the movable stopper. When the air pump passes through the inlet After the air pipe injects a certain pressure of air into the mixing cavity, the pressure in the mixing cavity closes the movable stopper. After the movable stopper closes the inlet, the pressure in the mixing chamber further increases, which promotes the liquid ice cream and air in the mixing chamber to further increase. Mixing, thereby increasing the air content of the gas-liquid mixture, used in the subsequent process to increase the puffing rate of ice cream products, and enhance the taste of ice cream products;

The mixing cavity of the present invention is in sealed communication with the freezing cylinder of the ice cream machine. When the pressure in the mixing cavity increases, the pressure of the ice cream in the freezing cylinder increases at the same time, thereby improving the puffing rate and taste of the ice cream; the pressure in the freezing cylinder is increased When discharging, the speed of discharging ice cream material in the freezing cylinder can also be increased, which is beneficial to push more formed ice cream from the discharge port of the freezing cylinder.

Because the mixing cavity of the present invention is in sealed communication with the freezing cylinder of the ice cream machine, when a certain high pressure is maintained in the mixing cavity, when the freezing cylinder is discharged, the pressure in the freezing cylinder decreases rapidly, and the high pressure mixing in the mixing cavity The ice cream material will enter the freezing cylinder more smoothly, thereby improving the feeding efficiency and ultimately increasing the output of the ice cream machine.

The present invention can movably block or open the feed inlet without adding special drive device control, thereby avoiding device failure due to drive device failure, or failure of drive components leading to food contamination of ice cream material and reducing failures At the same time, it also reduces equipment costs.

The invention is provided with an adjustable exhaust valve, and the excessively high pressure is discharged through the adjustable exhaust valve to maintain a certain pressure value in the airtight channel including the freezing cylinder of the ice cream machine.

In summary, the present invention can increase the puffing rate of the ice cream produced, the discharging speed is faster, and the feeding efficiency is higher. In addition, the overall structure of the present invention is simple, has the advantages of easy installation and replacement, and easy cleaning.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a structural schematic diagram of a novel feed puffing device of the present invention;

Figure 2 is an exploded schematic diagram of the structure of a novel feed puffing device of the present invention;

Figure 3 is a structural schematic diagram of a novel feed puffing device of the present invention installed in the bowl of an ice cream machine;

Description of reference signs:

Main body 1; Air inlet 1-1; Feed inlet 1-2; Mixture outlet 1-3; End cover 1-4; Annular groove 1-5; Exhaust hole 1-6; Movable stopper 2; Air inlet pipe 3; One-way valve 3-1; Air pump 4; Elastic rubber ring 5; Material bowl 6.

Detailed ways

In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be pointed out that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all those of ordinary skill in the art can obtain without creative work. Other embodiments fall within the protection scope of the present invention.

A novel feed puffing device of the present invention, as specifically shown in Figures 1-2, includes a main body 1 provided with a mixing cavity, and one end of the main body 1 is provided with an air inlet communicating with the mixing cavity 1-1. The side wall of the main body 1 is provided with at least one feed port 1-2 communicating with the mixing cavity, and the main body 1 is provided with a mixed material outlet 1-3; the feed port 1-2 A movable stopper 2 pivotally connected to the main body 1 is provided, and the movable stopper 2 can movably block or open the feed inlet 1-2 without the control of a driving device; air passes through the air inlet 1-1 enters the mixing inner cavity, the liquid ice cream material opens the movable baffle 2 by its own gravity and/or liquid level pressure and enters the mixing inner cavity through the inlet 1-2, and the air in the mixing inner cavity The pressure of the liquid mixture pushes the movable stopper 2 to block the inlet 1-2.

The present invention obtains different feed amounts or feed speeds through different opening and closing or opening angles of the movable stopper, and mixes the ice cream material flowing in through the feed port with air in the mixing cavity of the main body, thereby improving the gas-liquid mixing The air content and discharge puffing rate of the material; at the same time, the present invention can movably block or open the feed port without special drive device control, thereby avoiding device failure due to drive device failure, reducing the failure rate and at the same time The equipment cost is reduced; the overall structure of the invention is simple, has the advantages of easy installation and replacement, and easy cleaning, which is beneficial to food safety.

Further, the movable stop 2 is an elastic stop, and the elastic stop is integrally formed at the inlet 1-2 of the main body 1.

Specifically, the movable stopper 2 can be arranged inside the side wall of the mixing cavity of the body 1, and the upper end of the movable stopper 2 is integrally formed by injection molding and connected to the upper edge of the inlet 1-2 or the side above the upper edge. On the wall, the movable stop 2 forms an elastic force through the material properties of plastic.

As an alternative to the present invention, the movable stopper can also be made of stainless steel or silica gel, which is hinged to the side wall at or above the upper edge of the feed inlet 1-2. Among them, the silicone movable baffle has the characteristics of non-toxic and soft material, which further improves the flexibility and fit of the movable baffle 2 and ensures the sealing effect. The hinge joint can adopt a common articulation method, or an elastic piece or a spring for resetting the movable stopper can be installed at the hinge joint to form an elastic stopper.

Further, the movable stopper 2 is a sheet-shaped movable stopper; the sheet-like structure of the movable stopper 2 can be flexibly opened and closed, reducing the resistance of feeding.

Furthermore, when the movable stopper 2 adopts an elastic stopper, it has an inclined opening angle relative to the feed inlet 1-2 under no pressure, so as to further improve the fluidity of the feed. When the movable baffle 2 adopts the ordinary articulated connection mode, under the condition of no pressure, the movable baffle 2 closes the feeding port 1-2. When feeding is required, the liquid ice cream material is opened and moved by its own gravity and/or liquid level pressure. The stopper 2 enters the mixing inner cavity through the feed port 1-2. After a certain amount of air is introduced into the mixing inner cavity, the pressure is increased to a certain degree, and then the movable stopper 2 is closed.

Further, there are two feed ports 1-2, and the two feed ports 1-2 are arranged oppositely on the side wall of the main body 1, and the two feed ports can be used under economical conditions. The gas-liquid mixture expands more uniformly, and the feed amount is larger. In other embodiments, the feed ports 1-2 can also be more than two or one, and more than two feed ports are distributed on the side wall of the main body 1. It is preferably uniformly distributed.

Further, one end of the main body 1 is an end cover 1-4, and the end cover 1-4 is detachably connected to the main body 1 in a sealed manner. Disassembling the end cover 1-4 is convenient for cleaning and cleaning the inside of the main body 1. , It is also convenient for production and assembly and subsequent replacement of accessories. The end caps 1-4 and the main body 1 are provided with a number of sealing rings, which have a good sealing effect. The end caps 1-4 and the main body 1 are connected by clamping The way to form a detachable connection, as shown in Figure 2.

Further, the novel feed puffing device is also provided with an adjustable exhaust valve, and the excessive pressure is discharged through the adjustable exhaust valve, and the airtight channel including the pressure in the freezing cylinder of the ice cream machine is maintained, so that the pressure in the freezing cylinder is maintained. The ice cream is fully mixed and puffed with air during the refrigeration process.

Further, the exhaust valve can be arranged on the pipe between the lower part of the intake port 1-1 of the main body 1 and the upper part of the end cover 1-4. In this embodiment, the exhaust valve is provided on the pipe. An exhaust hole 1-6, an annular groove 1-5 is formed on the side wall of the pipe portion, and the exhaust hole 1-6 is opened at the bottom of the annular groove 1-5 and communicates with the inside of the pipe portion, An elastic rubber ring 5 is sleeved on the annular groove 1-5 to wrap the vent 1-6 on the outside, and the elastic sealing force of different elastic rubber rings is used to ensure the release of excessive pressure.

The present invention also discloses an ice cream machine, which at least includes the novel feed puffing device, the material bowl, the freezing cylinder and the air pump as described in any one of the above, as shown in Figure 3, the novel feed puffing device is placed in the material bowl In 6, the discharge port of the new-type feed puffing device is in sealed communication with the discharge port of the material bowl and the feed port of the freezing cylinder. The material port is the outlet of the material bowl inlet/outlet hole that can be communicated with the freezing cylinder. The air pump and the air inlet 1-1 of the main body 1 can be communicated through the air inlet pipe 3, and the air inlet pipe 3 is equipped with a single The valve 3-1 enables air to flow from the air pump 4 to the new feed puffing device only in one direction. The end caps 1-4 of the main body 1 are also used for the fixed connection with the material bowl 6 to make the new feed puffing device Fixed in the material bowl 6.

As an alternative to the present invention, the movable stopper is not limited to the several implementations mentioned in the embodiments, and other similar movable stoppers that can movably block or open the feed opening can also achieve the purpose of the present invention. The exhaust valve can also be installed on the intake pipe or on the lower part of the main body.

The above-mentioned embodiments only express several implementation modes of the present invention, and their description is relatively specific and detailed, but they should not be understood as a limitation on the patent scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

A novel feed puffing device, which is characterized in that it comprises a main body provided with a mixing cavity, one end of the main body is provided with an air inlet communicating with the mixing cavity, and the side wall of the main body is provided with at least one A feed port communicated with the mixing cavity, the main body is provided with a mixed material outlet; the feed port is provided with a movable baffle pivotally connected to the main body, and air enters the air inlet through the air inlet In the mixing cavity, the liquid ice cream material enters the mixing cavity through the inlet through its own gravity and/or liquid level pressure; the pressure in the mixing cavity pushes the movable stopper to block the inlet, and The movable stopper can movably block or open the feeding port without a special driving device.
The new feed puffing device according to claim 1, wherein the movable stop is an elastic stop integrally formed at the inlet of the main body or the movable stop is hinged to the main body. At the feed inlet.
The novel feed puffing device according to claim 2, wherein the movable baffle is a stainless steel, plastic or silicone movable baffle, and the movable baffle is in the shape of a thin sheet.
The new feed puffing device according to claim 2, wherein the movable baffle is provided with a seal on one side of the movable baffle facing the feed opening or the side of the feed opening facing the movable baffle strip.
The novel feed puffing device according to claim 1, wherein the movable stopper has an inclined opening angle with respect to the feed port under the condition of no pressure.
The novel feed puffing device according to claim 1, wherein there are two or more feed ports, and the feed ports are distributed on the side wall of the main body.
The novel feed puffing device according to claim 1, wherein one end of the main body is an end cover, the end cover is detachably connected to the main body in a sealed manner, and the end cover is attached to the main body. There are several sealing rings at the joint.
8. The novel feed puffing device according to claim 7, wherein the new feed puffing device is also provided with an adjustable exhaust valve.
The novel feed puffing device according to claim 8, wherein the exhaust valve comprises an exhaust hole opened on the pipe between the lower part of the air inlet of the main body and the upper part of the end cover, and the pipe An annular groove is provided on the side wall of the part, the exhaust hole is opened at the bottom of the annular groove and communicates with the inside of the pipe part, and an elastic rubber ring is sleeved on the annular groove.
An ice cream machine, characterized in that it comprises at least the novel feed puffing device, a material bowl, a freezing cylinder and an air pump as claimed in any one of claims 1-9, and the novel feed puffing device is placed in the material bowl Wherein, the discharge port of the novel feed puffing device is in sealed communication with the discharge port of the material bowl and the inlet port of the freezing cylinder, and the air pump communicates with the air inlet of the main body through an air inlet pipe, and the air inlet pipe is installed One-way valve.