A feeding device for the production of an oral care additive

Abstract

The present invention relates to the field of production of oral care additives, and discloses a feeding device for the production of oral care additives, including a frame and a feeding member. The feeding member includes a mixing assembly and an output assembly. The mixing assembly includes a mixing tank. A fixing hole is provided on the tank cover of the mixing tank. A fixing sleeve is provided at the lower orifice of the fixing hole. A bottom cover is provided at the lower opening of the fixing sleeve. A notch and a nozzle are provided on the bottom cover. A rotating body is sleeved inside the fixing sleeve. Air holes and material storage holes are provided on the end face of the rotating body. When the rotating body rotates, the material storage hole can be completely communicated with the notch, and the material storage hole can be communicated with the nozzle. The lower orifice of the air hole is connected to the notch through a connecting channel. A fixing cover is provided on the upper surface of the rotating body. A threaded shaft in the shape of a hollow shaft coaxial with the material storage hole and capable of moving along the axis is installed on the fixing cover. A piston is sleeved inside the material storage hole. A spring is provided between the piston and the fixing cover.

Description

Technical Field

[0001] The present invention relates to the field of oral care additive production, and particularly to a feeding device for the production of oral care additives. Background Art

[0002] Toothpaste is a common oral care product in daily life, which is used to protect dental health. In order to improve the use effect of toothpaste, merchants generally add toothpaste additives to toothpaste.

[0003] Based on a search for toothpaste thin film additives, a Chinese invention patent with the authorization announcement number CN109846749B was found, which discloses a thin film toothpaste additive and its preparation method. A mixture A is obtained by stirring starch, deionized water, and hydroxypropyl methylcellulose, then polyethylene glycol is added and stirred to obtain mixture B, then talcum powder, coloring agent, and deionized water are added, and ultrasonically dispersed evenly to obtain mixture C. Then, sodium dodecyl sulfate and methylparaben are dissolved in deionized water and slowly added to mixture C. After stirring evenly, drying and slicing are carried out to obtain the thin film toothpaste additive. In this preparation method, the quantitative addition and sufficient mixing of raw materials are one of the factors affecting the quality of the finally obtained additive. Since the raw materials include water, starch, cellulose, etc., the raw materials mixed together are in a viscous fluid state. In the existing mixing technology, generally, the weighed raw materials are poured into a stirring tank, and then the raw materials are stirred and mixed by the rotation of the stirring blades. This method not only has low efficiency but also requires a long time of stirring to achieve the desired mixing effect. Based on this, the present invention proposes a feeding device for the production of oral care additives. Summary of the Invention

[0004] To solve the problems mentioned in the above background, the present invention provides a feeding device for the production of oral care additives.

[0005] To achieve the above technical objectives, the technical solutions adopted by the present invention are as follows.

[0006] A feeding device for the production of oral care additives includes a frame and a feeding component. The feeding component includes a mixing component and an output component;

[0007] The mixing component includes a mixing tank. A fixing hole is coaxially opened on the tank cover of the mixing tank. A fixing sleeve is provided at the lower orifice of the fixing hole. A bottom cover is provided at the lower opening of the fixing sleeve. A notch and a nozzle are provided on the bottom cover;

[0008] A rotating body is movably sleeved in the fixing sleeve. An air hole and a material storage hole are opened on the end face of the rotating body. During the rotation of the rotating body, the lower orifice of the material storage hole can be completely communicated with the notch, and the material storage hole can be communicated with the nozzle;

[0009] The air hole is coaxial with the rotating body, and the lower orifice of the air hole is connected to the notch through a connecting channel;

[0010] A fixed cover is arranged on the upper surface of the rotating body. A threaded shaft in the shape of a hollow shaft coaxial with the material storage hole and capable of moving along the axis is installed on the fixed cover. A piston is sleeved in the material storage hole, and a spring is arranged between the piston and the fixed cover.

[0011] As a further improvement and optimization of the present invention, a conveyor belt with a horizontal conveying direction is arranged on the frame. The feeding member is located directly above the conveyor belt. Multiple groups of feeding members are arranged in an array along the conveying direction of the conveyor belt, and the output end heights of the multiple groups of feeding members increase sequentially along the conveying direction.

[0012] As a further improvement and optimization of the present invention, a feed pipe is arranged at the end of the nozzle. The end of the feed pipe extends out of the mixing tank and is provided with a peristaltic pump, which is used to draw raw materials into the feed pipe.

[0013] As a further improvement and optimization of the present invention, the upper end of the rotating body extends out of the fixed sleeve and is power-connected to a second motor.

[0014] As a further improvement and optimization of the present invention, at least two material storage holes are arranged in an array along the circumferential direction of the rotating body.

[0015] As a further improvement and optimization of the present invention, the connecting channel is arranged on the upper surface of the bottom cover. An air inlet pipe is arranged at the upper orifice of the air hole. The end of the air inlet pipe is provided with a connecting air pipe through a rotary joint. The end of the connecting air pipe is provided with an air tank. Inert gas is stored in the air tank and the air pressure in the air tank is positive pressure. An electromagnetic valve is arranged on the connecting air pipe. When the electromagnetic valve is opened, the inert gas can be output through the connecting air pipe, rotary joint, air inlet pipe, air hole and connecting channel, and the output inert gas blows horizontally towards the lower surface of the rotating body at the notch.

[0016] As a further improvement and optimization of the present invention, a piston rod is arranged on the upper end surface of the piston. The threaded shaft is sleeved outside the piston rod. An internal step is arranged at the lower end of the threaded shaft. A nut is arranged at the upper end of the piston rod. Initially, the internal step supports the nut and the lower surface of the piston is flush with the lower orifice of the material storage hole.

[0017] As a further improvement and optimization of the present invention, a sliding connection in the vertical direction is formed between the threaded shaft and the fixed cover. A power transmission member is arranged between the threaded shaft and a third motor arranged on the fixed cover. The driven member of the power transmission member is threadedly sleeved outside the threaded shaft. A limiting bracket for restricting the driven member to only rotate is arranged on the fixed cover.

[0018] As a further improvement and optimization of the present invention, the bottom of the mixing tank is set in the shape of a frustum of a cone with a diameter increasing from bottom to top, and a bottom pipe is provided at the bottom of the tank bottom. A stirring shaft is coaxially arranged in the mixing tank. The lower end of the stirring shaft extends out of the mixing tank and is in power connection with a first electric motor arranged on the frame. Stirring blades are arranged on the stirring shaft, and an auxiliary auger is arranged outside the stirring shaft. The auxiliary auger is located in the bottom pipe and its upper end extends into the mixing tank.

[0019] As a further improvement and optimization of the present invention, the output assembly includes a feeding tank. The feeding tank is connected to the bottom pipe through a connecting pipe, and a valve I is arranged on the connecting pipe. An output pipe is provided at the bottom of the feeding tank, an output nozzle is arranged at the lower end of the output pipe, a valve II is arranged on the output pipe, an auxiliary pipe is arranged on the connecting pipe, and a valve III is arranged on the auxiliary pipe.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] In this solution, through the cooperation of the threaded shaft, the piston, the spring and the inert gas, the raw materials can be quantitatively put into the mixing tank. Specifically:

[0022] The spring releases elastic force, which can drive the piston to move downward, thereby pushing the raw materials in the material storage hole downward. And when the raw materials pass through the notch, there is a vertical initial velocity in the vertical downward direction. And along with the release of the elastic force of the spring, the compression amount of the spring becomes smaller, the elastic force becomes smaller, and the vertical initial velocity of the raw materials also gradually becomes smaller;

[0023] The inert gas blown out through the connecting channel can give the raw materials passing through the notch a horizontal initial velocity in the horizontal direction, and the horizontal initial velocity is constant;

[0024] The above two cooperate:

[0025] 1. On the one hand, it can make the horizontal displacement components of the raw materials different, so that the raw materials can fall into the mixing tank more evenly. On the other hand, when the raw materials contact with the raw materials previously put into the mixing tank, the velocities in the vertical direction are different. Therefore, the depths of the raw materials penetrating into the raw materials previously put into the mixing tank are different, so that the raw materials can penetrate more evenly into the raw materials previously put into the mixing tank. The two cooperate to make a preliminary mixing effect between the raw materials put into the mixing tank this time and the raw materials previously put into the mixing tank. Therefore, the purpose of improving the mixing effect and mixing efficiency can be achieved;

[0026] 2. When the lower surface of the piston is flush with the lower surface of the rotating body, the built-in stepped support nut makes the piston stop moving downward. At the same time, the inert gas blown out through the connecting channel can blow to the lower surface of the piston, thereby blowing out the raw materials remaining on the lower surface of the piston, so that all the raw materials in the material storage hole are sent into the mixing tank, improving the accuracy of quantitatively putting the raw materials into the mixing tank. Brief Description of the Drawings

[0027] Figure 1 It is a schematic structural diagram of the present invention;

[0028] Figure 2 It is a schematic structural diagram of the feeding member;

[0029] Figure 3 It is a schematic structure of the mixing component Figure 1 ;

[0030] Figure 4 It is a schematic structure of the mixing component Figure 2 ;

[0031] Figure 5 It is a schematic structure of the metering feeding component Figure 1 ;

[0032] Figure 6 It is a schematic structure of the metering feeding component Figure 2 ;

[0033] Figure 7 It is a sectional view of the metering feeding component;

[0034] Figure 8 It is a sectional view of the rotating body and the bottom cover.

[0035] The reference numerals in the drawings are:

[0036] 100, frame; 101, conveyor belt; 200, feeding member; 201, connecting pipe; 202, feeding tank; 203, output pipe; 204, output nozzle; 205, mixing tank; 2051, tank cover; 2052, bottom pipe; 2053, stirring shaft; 2054, stirring blade; 2055, auxiliary auger; 206, peristaltic pump; 207, air pump; 208, air tank; 209, second motor; 210, fixed sleeve; 2101, bottom cover; 2102, notch; 2103, connecting nozzle; 211, third motor; 212, threaded shaft; 213, intake pipe; 214, rotating body; 2141, air hole; 2142, material storage hole; 215, piston; 216, piston rod; 217, spring; 218, first motor. Detailed Description of the Invention

[0037] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will, in conjunction with the drawings and preferred embodiments, describe in detail the specific implementation manners, structures, features and their effects of the present invention as follows.

[0038] An oral care additive can refer to the existing patent documents mentioned in the background art, which is not the core of this solution and will not be elaborated.

[0039] Reference Figures 1-8 , a feeding device for the production of an oral care additive, comprising a frame 100, on which a conveyor belt 101 and a feeding member 200 are arranged. Among them, the conveying direction of the conveyor belt 101 is horizontally arranged, and the feeding member 200 is located directly above the conveyor belt 101. A plurality of groups of feeding members 200 are arranged in an array along the conveying direction of the conveyor belt 101, and the height of the output end of the feeding member 200 increases sequentially along the conveying direction. A drying structure is also arranged on the frame 100 for hot air blowing and drying treatment of the oral care additive on the conveyor belt 101. The hot air for drying can be formed by the cooperation of existing electric heating technology and fan technology, which will not be elaborated.

[0040] It should be noted that in this solution, the oral care additive is produced by stacking layers of materials, and each layer of material is made by fully mixing and stirring a variety of raw materials. For example, the first layer of material is a mixture of a film-forming agent, a filler, and a pigment, and the second layer of material is a mixture of a film-forming agent, a filler, and a fragrance;

[0041] During production, first, different layers of materials are obtained by stirring raw materials through different feeding members 200. Then, a film is laid on the conveyor belt 101, and the conveyor belt 101 pulls the film to move. During the movement, the first layer of material is laid on the film through the first group of feeding members 200, and at the same time, it is dried by hot air. Then, the second layer of material is laid on the dried first layer of material through the second group of feeding members 200. By repeating this process, the oral care additive can be obtained. Finally, the oral care additive is cut into the desired shape;

[0042] It should be noted that in order to ensure the adhesion between adjacent layers of materials, adjacent layers of materials can be adhered together by an adhesive;

[0043] It should be noted that technologies such as hot air drying, material conveying, and adhesion are not the core of this solution and can be adopted using existing technologies, which will not be elaborated. One of the cores of this solution lies in the quantitative weighing of raw materials and the full mixing to obtain each layer of material.

[0044] The feeding member 200 includes a mixing component and an output component. The former is used for quantitatively weighing raw materials and fully mixing the raw materials to obtain each layer of material, and the latter is used for laying the mixed material on the film or the upper layer of material.

[0045] I. Mixing component

[0046] Reference Figures 2-8 , the mixing component includes a mixing tank 205. The upper tank opening of the mixing tank 205 is provided with a tank cover 2051, the tank bottom is set in a frustum shape with a diameter increasing from bottom to top, and the bottom of the tank bottom is provided with a bottom pipe 2052.

[0047] Inside the mixing tank 205, a stirring shaft 2053 is coaxially arranged. The lower end of the stirring shaft 2053 extends out of the mixing tank 205 and is in power connection with a first motor 218 arranged on the frame 100. By the first motor 218, the stirring shaft 2053 can be driven to rotate. The stirring shaft 2053 drives the stirring blades 2054 to rotate together, realizing the stirring of the raw materials in the mixing tank 205. Further, an auxiliary auger 2055 is arranged outside the stirring shaft 2053. The auxiliary auger 2055 is located in the bottom pipe 2052 and its upper end extends into the mixing tank 205. During stirring, the rotation of the auxiliary auger 2055 can draw the raw materials in the bottom pipe 2052 upward, thereby preventing the raw materials in the bottom pipe 2052 from not participating in the stirring and affecting the stirring effect, playing a role in assisting stirring. After the stirring is completed, the reverse rotation of the auxiliary auger 2055 can draw the mixed materials outwards, playing a role in assisting output.

[0048] The mixing assembly further includes a quantitative feeding component arranged on the tank cover 2051.

[0049] A fixing hole is coaxially opened on the tank cover 2051. The quantitative feeding component includes a fixing sleeve 210 coaxially arranged at the lower orifice of the fixing hole. A bottom cover 2101 is arranged at the lower opening of the fixing sleeve 210. A notch 2102 and a nozzle 2103 are arranged on the bottom cover 2101. The end of the nozzle 2103 is provided with a feed pipe. The end of the feed pipe extends out of the mixing tank 205 and is connected to the discharge end of a peristaltic pump 206. The feed end of the peristaltic pump 206 is used to receive raw materials. The peristaltic pump 206 can be arranged on the frame 100 or the tank cover 2051.

[0050] A rotating body 214 is movably sleeved inside the fixing sleeve 210. The upper end of the rotating body 214 extends out of the fixing sleeve 210 and is in power connection with a second motor 209. By the second motor 209, the rotating body 214 can be driven to rotate. The second motor 209 can be arranged on the frame 100 or the tank cover 2051.

[0051] Air holes 2141 and material storage holes 2142 are formed on the end face of the rotating body 214. Among them, the air holes 2141 are coaxial with the rotating body 214. An air inlet pipe 213 is arranged at the upper orifice of the air holes 2141. A connection channel is provided between the lower orifice of the air holes 2141 and the notch 2102. The connection channel is arranged on the upper surface of the bottom cover 2101. The end of the air inlet pipe 213 is provided with a connecting air pipe through a rotary joint. The end of the connecting air pipe is connected to a gas tank 208 storing inert protective gas. An electromagnetic valve is arranged on the connecting air pipe. The gas tank 208 is in a positive pressure state. Therefore, when the electromagnetic valve is opened, the inert protective gas can be output through the connecting air pipe, rotary joint, air inlet pipe 213, air holes 2141 and the connection channel, and the output gas blows horizontally towards the lower surface of the rotating body 214 at the notch 2102.

[0052] During the rotation of the rotating body 214, the lower orifice of the material storage hole 2142 can be completely communicated with the notch 2102, and the material storage hole 2142 can be communicated with the nozzle 2103. At least two material storage holes 2142 are arranged in an array along the circumferential direction of the rotating body 214, and a metering feeding unit is arranged in each material storage hole 2142.

[0053] The metering feeding unit includes a threaded shaft 212 and a piston 215 sleeved in the material storage hole 2142, and a piston rod 216 is arranged on the upper end surface of the piston 215.

[0054] The threaded shaft 212 is in the shape of a hollow shaft coaxial with the material storage hole 2142. The lower end of the threaded shaft 212 extends into the material storage hole 2142. The threaded shaft 212 is sleeved outside the piston rod 216. An internal step is arranged at the lower end of the threaded shaft 212, and a nut is arranged at the upper end of the piston rod 216. Initially, the internal step supports the nut and the lower surface of the piston 215 is flush with the lower orifice of the material storage hole 2142.

[0055] A fixed cover is arranged on the upper surface of the rotating body 214. An avoidance hole for avoiding the threaded shaft 212 is arranged on the fixed cover. A spring 217 is arranged between the piston 215 and the fixed cover.

[0056] A sliding connection in the vertical direction is formed between the threaded shaft 212 and the fixed cover. The threaded shaft 212 and the third motor 211 are power-connected through a power transmission member. The third motor 211 is arranged on the fixed cover. The driven member of the power transmission member is threadedly sleeved outside the threaded shaft 212. A limit bracket for restricting the driven member to only rotate is arranged on the fixed cover. Therefore, through the cooperation of the third motor 211 and the power transmission member, the threaded shaft 212 can be driven to move up and down along the axis direction.

[0057] The working process of the mixing assembly is specifically as follows:

[0058] Since the aperture of the material storage hole 2142 is known, the volume occupied by these raw materials in the material storage hole 2142 is calculated according to the amount of raw materials to be put into the mixing tank 205. The height that the piston 215 needs to move up is calculated according to the volume. Then, the threaded shaft 212 is driven to move up so that the lower end of the threaded shaft 212 is at the corresponding height. When the piston 215 contacts the threaded shaft 212, the height where the piston 215 is located is the height that needs to be moved up;

[0059] The raw materials are pulled by the peristaltic pump 206, enter the material storage hole 2142 through the feed pipe and the nozzle 2103, and push the piston 215 to move up. The spring 217 is compressed. When the piston 215 contacts the threaded shaft 212, the raw materials in the material storage hole 2142 reach the preset value, that is, a fixed amount of raw materials are injected into the material storage hole 2142;

[0060] Then, the second motor 209 drives the rotating body 214 to rotate, so that the material storage hole 2142 filled with raw materials rotates to communicate with the notch 2102. At this time, the spring 217 releases its elastic force, and at the same time, the solenoid valve opens. The inert gas is output through the connecting air pipe, rotary joint, air inlet pipe 213, air hole 2141 and connecting channel, and the gas during output blows horizontally against the lower surface of the rotating body 214 at the notch 2102. Therefore, the following effects can be achieved:

[0061] The spring 217 releases its elastic force, which can drive the piston 215 to move downward, thereby pushing the raw materials in the material storage hole 2142 downward. When the raw materials pass through the notch 2102, there is a vertical initial velocity in the vertical downward direction. Along with the release of the elastic force of the spring 217, the compression amount of the spring 217 becomes smaller, the elastic force becomes smaller, and the vertical initial velocity of the raw materials also gradually becomes smaller;

[0062] The inert gas blown out through the connecting channel can give the raw materials passing through the notch 2102 a horizontal initial velocity in the horizontal direction, and the horizontal initial velocity is constant;

[0063] 1. On the one hand, it can make the horizontal displacement components of the raw materials different, so that the raw materials can fall into the mixing tank 205 more evenly. On the other hand, when the raw materials come into contact with the raw materials previously placed in the mixing tank 205, the velocities in the vertical direction are different. Therefore, the depths at which the raw materials penetrate into the raw materials previously placed in the mixing tank 205 are different, so that the raw materials can penetrate more evenly into the raw materials previously placed in the mixing tank 205. The two cooperate to enable a preliminary mixing effect between the raw materials placed in the mixing tank 205 this time and the raw materials previously placed in the mixing tank 205. Therefore, the purpose of improving the mixing effect and mixing efficiency can be achieved;

[0064] 2. When the lower surface of the piston 215 is flush with the lower surface of the rotating body 214, the built-in stepped support nut causes the piston 215 to stop moving downward. At the same time, the inert gas blown out through the connecting channel can blow against the lower surface of the piston 215, thereby blowing out the raw materials remaining on the lower surface of the piston 215, so that all the raw materials in the material storage hole 2142 are sent into the mixing tank 205, improving the accuracy of quantitatively feeding the raw materials into the mixing tank 205;

[0065] It should be noted that, as can be seen from the background technology, the raw materials include some powder raw materials and cellulose raw materials. Therefore, it is easy for a small amount of raw material residues to adhere to the lower surface of the piston 215. If this part of the raw materials is not fed into the mixing tank 205, the accuracy of quantitative feeding of the raw materials will be poor;

[0066] In addition, while the raw materials are being input, the stirring shaft 2053 is driven to rotate by the first motor 218 to stir the raw materials in the mixing tank 205;

[0067] In addition, since there are at least two material storage holes 2142, one material storage hole 2142 is for feeding and one material storage hole 2142 is for discharging, which can improve the efficiency of quantitative input of raw materials.

[0068] In a preferred embodiment, as the raw materials are being input, the air pressure value in the mixing tank 205 continuously increases. Therefore, after each mixing of the raw materials, the inert gas in the mixing tank 205 should be discharged. Thus, an exhaust pipe can be provided on the tank cover 2051, the end of the exhaust pipe is connected to the intake end of the air pump 207, the outlet end of the air pump 207 is connected to the gas tank 208, and after each mixing of the raw materials, the inert gas is drawn back into the gas tank 208 through the air pump 207.

[0069] II. Output assembly

[0070] Refer to Figure 2 , the output assembly includes a feeding tank 202, the feeding tank 202 is connected to the bottom pipe 2052 through a connecting pipe 201 and a valve one is provided on the connecting pipe 201, an output pipe 203 is provided at the bottom of the feeding tank 202, an output nozzle 204 is provided at the lower end of the output pipe 203, and a valve two is provided on the output pipe 203.

[0071] After the raw materials are mixed well, the valve one is opened, and inert gas is injected into the mixing tank 205, so that the mixed material can be pushed into the feeding tank 202 for storage.

[0072] An auxiliary pipe is provided on the connecting pipe 201, and a valve three is provided on the auxiliary pipe.

[0073] The valve one is closed, the valve two and the valve three are opened, and inert gas is injected into the connecting pipe 201 through the output pipe, so that the material in the feeding tank 202 can be pushed into the output pipe 203 and output downward through the output nozzle 204 and fall onto the conveyor belt 101.

[0074] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed as above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to make equivalent embodiments with equivalent changes, but as long as the technical content of the present invention is not departed from, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A feeding device for the production of an oral care additive, comprising a frame (100) and a feeding member (200), characterized in that, The feeding component (200) includes a mixing assembly and an output assembly; The mixing assembly includes a mixing tank (205). A fixing hole is coaxially formed on the tank cover (2051) of the mixing tank (205). A fixing sleeve (210) is provided at the lower orifice of the fixing hole. A bottom cover (2101) is provided at the lower opening of the fixing sleeve (210). A notch (2102) and a nozzle (2103) are provided on the bottom cover (2101); A rotating body (214) is movably sleeved in the fixing sleeve (210). An air hole (2141) and a material storage hole (2142) are formed on the end face of the rotating body (214). During the rotation of the rotating body (214), the lower orifice of the material storage hole (2142) can be completely communicated with the notch (2102), and the material storage hole (2142) can be communicated with the nozzle (2103); The air hole (2141) is coaxial with the rotating body (214), and the lower orifice of the air hole (2141) is connected to the notch (2102) through a connecting channel; A fixing cover is provided on the upper surface of the rotating body (214). A threaded shaft (212) in the shape of a hollow shaft coaxial with the material storage hole (2142) and capable of moving along the axis is installed on the fixing cover. A piston (215) is sleeved in the material storage hole (2142). A spring (217) is provided between the piston (215) and the fixing cover; The end of the nozzle (2103) is provided with a feed pipe. The end of the feed pipe extends out of the mixing tank (205) and is provided with a peristaltic pump (206). The peristaltic pump (206) is used to draw raw materials into the feed pipe; The connecting channel is provided on the upper surface of the bottom cover (2101). An air inlet pipe (213) is provided at the upper orifice of the air hole (2141). The end of the air inlet pipe (213) is provided with a connecting air pipe through a rotary joint. The end of the connecting air pipe is provided with an air tank (208). An inert gas is stored in the air tank (208) and the air pressure in the air tank (208) is positive pressure. An electromagnetic valve is provided on the connecting air pipe. When the electromagnetic valve is opened, the inert gas can be output through the connecting air pipe, rotary joint, air inlet pipe (213), air hole (2141) and connecting channel, and the output inert gas blows horizontally towards the lower surface of the rotating body (214) at the notch (2102); A piston rod (216) is provided on the upper end face of the piston (215). The threaded shaft (212) is sleeved outside the piston rod (216). An internal step is provided at the lower end of the threaded shaft (212). A nut is provided at the upper end of the piston rod (216). Initially, the internal step supports the nut and the lower surface of the piston (215) is flush with the lower orifice of the material storage hole (2142).

2. The feeding device for producing an oral care additive according to claim 1, characterized in that, A conveyor belt (101) with a horizontal conveying direction is provided on the frame (100). The feeding component (200) is located directly above the conveyor belt (101). Multiple groups of feeding components (200) are arranged in an array along the conveying direction of the conveyor belt (101), and the heights of the output ends of the multiple groups of feeding components (200) increase sequentially along the conveying direction.

3. The feeding device for the production of an oral care additive according to claim 1, characterized in that, The upper end of the rotating body (214) extends out of the fixing sleeve (210) and is power-connected to a second motor (209).

4. A feeding device for the production of an oral care additive according to claim 1, characterized in that, There are at least two stock storage holes (2142) arranged in an array along the circumferential direction of the rotating body (214).

5. A feeding device for the production of an oral care additive according to claim 1, characterized in that, A sliding connection in the vertical direction is formed between the threaded shaft (212) and the fixed cover. A power transmission member is arranged between the threaded shaft (212) and the third motor (211) provided on the fixed cover. The driven member of the power transmission member is threadedly sleeved outside the threaded shaft (212), and a limiting bracket for restricting the driven member to only rotate is provided on the fixed cover.

6. The feeding device for the production of an oral care additive according to claim 1, characterized in that, The bottom of the mixing tank (205) is set in the shape of a frustum with a diameter increasing from bottom to top, and a bottom pipe (2052) is provided at the bottom of the mixing tank (205). A stirring shaft (2053) is coaxially arranged in the mixing tank (205). The lower end of the stirring shaft (2053) extends out of the mixing tank (205) and is power-connected to the first motor (218) provided on the frame (100). Stirring blades (2054) are arranged on the stirring shaft (2053), and an auxiliary auger (2055) is arranged outside the stirring shaft (2053). The auxiliary auger (2055) is located in the bottom pipe (2052) and its upper end extends into the mixing tank (205).

7. The feeding device for the production of an oral care additive according to claim 6, characterized in that, The output assembly includes a feeding tank (202). The feeding tank (202) is connected to the bottom pipe (2052) through a connecting pipe (201), and a valve one is provided on the connecting pipe (201). An output pipe (203) is provided at the bottom of the feeding tank (202). An output nozzle (204) is provided at the lower end of the output pipe (203), and a valve two is provided on the output pipe (203). An auxiliary pipe is provided on the connecting pipe (201), and a valve three is provided on the auxiliary pipe.

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