Quantitative powder discharging mechanism

Abstract

The utility model provides a quantitative powder feeding mechanism which comprises a stock bin, a movable plate, a fixed plate and a pushing assembly which are sequentially arranged from top to bottom, a powder inlet through hole is formed in the bottom of the stock bin, the movable plate is arranged on the bottom face of the stock bin in a sliding mode, a material storage through hole is formed in the movable plate, and a powder outlet through hole is formed in the fixed plate. The pushing assembly is used for pushing the moving plate to slide back and forth between a first position and a second position at the bottom of the stock bin; when the movable plate is located at the first position, the material storage through hole is aligned with the powder inlet through hole, and the material storage through hole and the powder outlet through hole are staggered, and when the movable plate is located at the second position, the material storage through hole is aligned with the powder outlet through hole, and the material storage through hole and the powder inlet through hole are staggered. The moving plate is pushed by the pushing assembly to slide on the bottom face of the stock bin so that the moving plate can move to the first position, at the moment, powder in the stock bin can enter the storage through hole through the powder inlet through hole, then the moving plate is pushed by the pushing assembly to the second position, and the powder temporarily stored in the storage through hole is discharged from the powder outlet through hole; quantitative discharging of food powder can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to a quantitative powder feeding mechanism. Background Art

[0002] At present, most babies are fed with milk powder. In order to avoid obesity, overnutrition and milk separation in babies, parents and mothers prepare and feed milk powder in fixed quantities according to the age of the baby. In the past, parents usually estimated the amount of milk powder based on the milk powder spoon, and then put it into the bottle for brewing. Is it easy to control the amount of milk powder in this way? At present, there are milk powder machines on the market that can automatically brew milk powder, but they cannot quantitatively dispense milk powder. The amount of milk powder added is still controlled by the operator. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a quantitative powder discharging mechanism, which can realize the quantitative discharging of food powders such as milk powder.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A quantitative powder feeding mechanism comprises a material bin, a movable plate and a fixed plate which are arranged in sequence from top to bottom, a powder inlet through hole is arranged at the bottom of the material bin, the movable plate is slidably arranged on the bottom surface of the material bin, a material storage through hole is arranged on the movable plate, and a powder outlet through hole is arranged on the fixed plate;

[0006] Also included is a pushing assembly, which is used to push the moving plate to slide back and forth between a first position and a second position at the bottom of the silo;

[0007] When the movable plate is in the first position, the material storage through hole is aligned with the powder inlet through hole, and the material storage through hole is staggered with the powder outlet through hole; when the movable plate is in the second position, the material storage through hole is aligned with the powder outlet through hole, and the material storage through hole is staggered with the powder inlet through hole.

[0008] Preferably, a first through hole is provided in the middle of the movable plate, and the first through hole has a front abutment surface and a rear abutment surface;

[0009] The pushing assembly includes a motor and a rotating arm. The rotating arm is arranged in a first through hole. The output shaft of the motor passes through the fixed plate and the first through hole and is connected to the rotating shaft of the rotating arm. The rotating arm reciprocates against the front abutment surface and the rear abutment surface to drive the movable plate to reciprocate between the first position and the second position.

[0010] Preferably, the first through hole is an elliptical hole, the front abutment surface and the rear abutment surface are the long sides of the elliptical hole, and the length of the rotating arm is shorter than the short axis of the elliptical hole.

[0011] Preferably, it also includes a mounting platform, and the motor is fixedly mounted on the mounting platform.

[0012] Preferably, a powder scraping assembly is rotatably provided in the storage bin.

[0013] Preferably, the powder scraping assembly includes a stirring shaft and a plurality of stirring paddles arranged on the outer periphery of the stirring shaft;

[0014] A third through hole is provided in the middle of the storage bin, and the upper part of the rotating shaft of the rotating arm passes through the third through hole and is in transmission connection with the stirring shaft.

[0015] Preferably, among the bottom surface of the storage bin and the top surface of the moving plate, one is provided with a limiting guide groove, and the other is provided with a limiting guide rib, and the limiting guide rib slides in the limiting guide groove.

[0016] Preferably, a groove is provided at the bottom of the storage bin, the moving plate and the fixing plate are both located in the groove, and the fixing plate is clamped with the bottom of the storage bin.

[0017] Preferably, at least one side surface of the fixing plate is provided with a clamping member, and a clamping groove corresponding to the clamping member is provided on the bottom surface of the storage bin, and the clamping member is clamped in the clamping groove.

[0018] Preferably, an outer cylinder is further included. The storage bin, the moving plate and the fixing plate are all located in the outer cylinder. An installation hole corresponding to the position of the powder outlet through hole is provided at the bottom of the outer cylinder, and the powder outlet through hole extends into the installation hole.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] (1) By pushing the assembly to push the moving plate to slide on the bottom surface of the storage bin, so that the moving plate moves to the first position. At this time, the powder in the storage bin can enter the storage through hole of the moving plate through the powder inlet through hole, and then push the moving plate to the second position by the pushing assembly, so that the powder temporarily stored in the storage through hole falls into the powder outlet through hole of the fixing plate and exits through the powder outlet through hole. Since the size of the storage through hole is constant, the amount of powder entering the storage through hole each time is the same, and quantitative discharging of food powder can be realized;

[0021] (2) When the moving plate is in the first position, the storage through hole and the powder outlet through hole are staggered, so that the powder outlet through hole is sealed. When the moving plate is in the second position, the storage through hole and the powder inlet through hole are staggered, so that the powder inlet through hole is sealed, and the powder inlet through hole and the powder outlet through hole are not communicated. Then, the water vapor of the milk powder machine cannot enter the storage bin from the powder outlet through hole, thereby effectively ensuring the moisture-proof property of the quantitative powder discharging mechanism and preventing the powder in the storage bin from being affected by moisture and caking. Description of the Drawings

[0022] Figure 1 is an exploded view of the present utility model;

[0023] Figure 2 is a longitudinal sectional view of the present utility model;

[0024] Figure 3 is a three-dimensional structural schematic diagram of the storage bin in the present utility model;

[0025] Figure 4 Schematic three-dimensional structure diagram of the moving plate in the present utility model;

[0026] Figure 5 Schematic three-dimensional structure diagram of the fixed plate in the present utility model;

[0027] Figure 6 Schematic structure diagram of the silo and the moving plate when the moving plate is in the first position in the present utility model;

[0028] Figure 7 Schematic structure diagram of the moving plate and the fixed plate when the moving plate is in the first position in the present utility model;

[0029] Figure 8 Schematic structure diagram of the silo and the moving plate when the moving plate is in the second position in the present utility model;

[0030] Figure 9 Schematic structure diagram of the moving plate and the fixed plate when the moving plate is in the second position in the present utility model;

[0031] Figure 10 Schematic internal structure diagram of the silo in the present utility model;

[0032] Figure 11 Schematic three-dimensional structure diagram of the installation platform in the present utility model.

[0033] Reference numerals in the drawings:

[0034] 1 - Silo; 11 - Powder inlet through hole; 12 - Third through hole; 13 - Limit guiding rib; 14 - Groove; 15 - Card slot; 2 - Moving plate; 21 - Material storage through hole; 22 - Second through hole; 221 - Front abutting surface; 222 - Rear abutting surface; 23 - Limit guiding groove; 3 - Fixed plate; 31 - Powder outlet through hole; 32 - Second through hole; 33 - Clamping strip; 4 - Pushing component; 41 - Motor; 42 - Rotating arm; 5 - Scraping powder component; 51 - Stirring shaft; 52 - Stirring paddle; 6 - Outer cylinder; 61 - Installation hole; 7 - Installation platform; 71 - Connecting hole. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0036] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] See also Figures 1 to 5 The utility model provides a quantitative powder feeding mechanism, which can be applied to a milk powder machine, and can also be applied to a discharging device of other food powders. The food powder of the present application takes milk powder as an example; the quantitative powder feeding mechanism comprises a silo 1, a movable plate 2 and a fixed plate 3 which are arranged in sequence from top to bottom, the bottom of the silo 1 is provided with a powder feeding through hole 11, the movable plate 2 is slidably arranged on the bottom surface of the silo 1, the movable plate 2 is provided with a material storage through hole 21, the fixed plate 3 is provided with a powder discharging through hole 31, and also comprises a pushing component 4, the pushing component 4 is used to push the movable plate 2 to slide back and forth between a first position and a second position on the bottom surface of the silo 1; see Figure 6 and Figure 7 When the movable plate 2 is in the first position, the material storage hole 21 is aligned with the powder inlet hole 11, and the material storage hole 21 is staggered with the powder outlet hole 31. At this time, the milk powder in the silo 1 can enter the material storage hole 21 through the powder inlet hole 11. Figure 8 and Figure 9 When the movable plate 2 is in the second position, the material storage through hole 21 is aligned with the powder outlet through hole 31 , and the material storage through hole 21 is staggered with the powder inlet through hole 11 . At this time, the milk powder in the material storage through hole 21 can be discharged from the powder outlet through hole 31 .

[0038] The moving plate 2 is pushed to slide on the bottom surface of the silo 1 by the pushing component 4, so that the moving plate 2 moves to the first position. At this time, the milk powder in the silo 1 can enter the material storage through hole 21 of the moving plate 2 through the powder inlet through hole 11. Then, the moving plate 2 is pushed to the second position by the pushing component 4, and the milk powder temporarily stored in the material storage through hole 21 falls into the powder outlet through hole 31 of the fixed plate 3 and is discharged from the powder outlet through hole 31. Since the size of the material storage through hole 21 is constant, the amount of milk powder entering the material storage through hole 21 each time is the same, so that quantitative discharge of milk powder can be achieved;

[0039] In addition, when the moving plate 2 is in the first position, the powder storage through hole 21 is offset from the powder outlet through hole 31, so that the powder outlet through hole 31 is sealed. When the moving plate 2 is in the second position, the powder storage through hole 21 is offset from the powder inlet through hole 11, so that the powder inlet through hole 11 is sealed. The powder inlet through hole 11 and the powder outlet through hole 31 are not communicated, so that the water vapor of the milk powder machine cannot enter the material bin 1 from the powder outlet through hole 31, thus effectively ensuring the moisture-proof property of the quantitative powder feeding mechanism and preventing the powder in the material bin 1 from getting damp and caking. A sealing cover is provided at the top of the material bin 1 to seal the material bin 1, which can also play a role in moisture-proofing.

[0040] Preferably, referring to Figure 3 , Figure 4 and Figure 5 , a first through hole 22 is provided in the middle of the moving plate 2. The first through hole 22 has a front abutting surface 221 and a rear abutting surface 222. The pushing assembly 4 includes a motor 41 and a rotating arm 42. The rotating arm 42 is arranged in the first through hole 22. The output shaft of the motor 41 passes through the fixed plate 3 and the first through hole 22 and is in transmission connection with the rotating shaft of the rotating arm 42. The rotating arm 42 reciprocally abuts against the front abutting surface 221 and the rear abutting surface 222 to drive the moving plate 2 to reciprocally move between the first position and the second position. Further, a second through hole 32 is provided in the middle of the fixed plate 3. The output shaft of the motor 41 passes through the second through hole 32 and the first through hole 22 and is in transmission connection with the rotating shaft of the rotating arm 42.

[0041] During use, the motor 41 is started. The motor 41 drives the rotating arm 42 to rotate. When the rotating arm 42 rotates to abut against the front abutting surface 221, the moving plate 2 is pushed to the first position (refer to Figure 6 and Figure 7 ). At this time, the milk powder in the material bin 1 can enter the powder storage through hole 21 of the moving plate 2 through the powder inlet through hole 11, and the powder storage through hole 21 is filled with milk powder. The motor 41 continues to drive the rotating arm 42 to rotate. When the rotating arm 42 rotates to abut against the rear abutting surface 222, the moving plate 2 is pushed to the second position (refer to Figure 8 and Figure 9 ), and the milk powder temporarily stored in the powder storage through hole 21 falls into the powder outlet through hole 31 of the fixed plate 3 and powders out from the powder outlet through hole 31. The process of the rotating arm 42 rotating from the front abutting surface 221 to the rear abutting surface 222 is the process of filling the powder storage through hole 21 with milk powder. Therefore, the powder feeding amount of the milk powder can be adjusted by adjusting the rotation speed of the motor 41, thereby adjusting the rotation speed of the rotating arm 42. In this embodiment, the first through hole 22 is a quasi-elliptical hole, the front abutting surface 221 and the rear abutting surface 222 are the two long sides of the quasi-elliptical hole, and the length of the rotating arm 42 is shorter than the short axis of the quasi-elliptical hole, so that the rotating arm 42 can reciprocally abut against the front abutting surface 221 and the rear abutting surface 222 when rotating.

[0042] Preferably, referring to Figure 1 , Figure 2 andFigure 10 A powder scraper assembly 5 is rotatably provided in the silo 1, and the powder scraper assembly 5 can push the powder in the silo 1 into the powder inlet hole 11 to avoid that the storage hole 21 cannot be filled with milk powder when there is no milk powder directly above the powder inlet hole 11, and ensure that the milk powder can fall into the storage hole 21, thereby ensuring the filling amount of milk powder each time.

[0043] Specifically, the powder scraping assembly 5 includes a stirring shaft 51 and a plurality of stirring paddles 52 arranged on the periphery of the stirring shaft 51; a third through hole 12 is provided in the middle of the silo 1, and the upper part of the rotating shaft of the rotating arm 42 passes through the third through hole 12 and is transmission-connected with the stirring shaft 51, so that when the motor 41 rotates, it can simultaneously drive the rotating arm 42 and the stirring shaft 51 to rotate, and when the stirring shaft 51 rotates, the stirring paddle 52 rotates accordingly, thereby stirring the milk powder in the silo 1 and scraping the milk powder into the material storage through hole 21. Moreover, when the stirring paddle 52 rotates, the milk powder can be rolled to play a stirring role to prevent the milk powder in the silo 1 from agglomerating. In addition, the powder scraping assembly 5 has a scraping function. When the powder scraping assembly 5 rotates, it sweeps over the powder inlet through hole 11, scrapes away the powder located above the powder inlet through hole 11, and the powder entering the powder inlet through hole 11 is scraped flat, which can ensure the accuracy of the powder inlet amount of the powder inlet through hole 11.

[0044] Preferably, one of the bottom surface of the silo 1 and the top surface of the movable plate 2 is provided with a limiting guide groove, and the other is provided with a limiting guide rib, and the limiting guide rib slides in the limiting guide groove. Figure 3 , Figure 4 and Figure 6 The bottom surface of the silo 1 is provided with a limiting guide rib 13, and the movable plate 2 is provided with a limiting guide groove 23, and the limiting guide rib 13 slides in the limiting guide groove 23, so that the movable plate 2 slides on the bottom surface of the silo 1. The setting positions of the limiting guide groove and the limiting guide rib can be interchanged, that is, the limiting guide groove is set on the bottom surface of the silo 1, and the limiting guide rib is set on the top surface of the movable plate 2, which can also make the movable plate 2 slide on the bottom surface of the silo 1.

[0045] Preferably, see Figures 2 to 5 A groove 14 is provided at the bottom of the silo 1, and the movable plate 2 and the fixed plate 3 are both located in the groove 14. The movable plate 2 and the fixed plate 3 are buried in the bottom of the silo 1 through the groove 14. The silo 1, the movable plate 2 and the fixed plate 3 form a whole. The groove 14 is isolated from the inside of the silo 1, and the fixed plate 3 is clamped with the bottom of the silo 1, which is convenient for disassembly and assembly of the fixed plate 3.

[0046] Furthermore, at least one side surface of the fixing plate 3 is provided with a clamping piece, and the bottom surface of the silo 1 is provided with a clamping groove corresponding to the clamping piece, and the clamping piece is clamped in the clamping groove. Figure 5, clamping strips 33 are provided on three sides of the fixed plate 3, and three card slots 15 are provided on the bottom surface of the material bin 1 corresponding to the positions of the three clamping strips 33. Each clamping strip 33 is snapped into its corresponding card slot 15. The purpose of this setting is that when it is necessary to clean the fixed plate 3 and the moving plate 2, the fixed plate 3 can be removed from the bottom surface of the material bin 1, and then the moving plate 2 can be removed for cleaning, so that the cleaning process of the fixed plate 3 and the moving plate 2 is simple, and it is also convenient to install the fixed plate 3 and the moving plate 2 back to the bottom of the material bin 1 after cleaning. In fact, only one clamping strip 33 can be provided, or two clamping strips 33 can be provided on opposite sides of the fixed plate 3, or clamping strips 33 can be provided on all four sides of the fixed plate 3. However, when only one clamping strip 33 is provided, the fixing effect on the fixed plate 3 is not strong, and the fixed plate 3 may slide left and right and back and forth; when two clamping strips 33 are provided on opposite sides of the fixed plate 3, the fixed plate 3 may slide left and right or back and forth; when clamping strips 33 are provided on all four sides of the fixed plate 3, there are too many clamping points between the fixed plate 3 and the material bin 1, making it difficult to remove the fixed plate 3.

[0047] Furthermore, the clamping strip 33 extends upward, so that the clamping strip 33 can play a role in limiting the moving plate 2 and prevent the moving plate from sliding out of the fixed plate 3.

[0048] Preferably, referring to Figure 1 and Figure 2 , the quantitative powder feeding mechanism further includes an outer cylinder 6. The material bin 1, the moving plate 2 and the fixed plate 3 are all located inside the outer cylinder 6. Installing the material bin 1, the moving plate 2 and the fixed plate 3 inside the outer cylinder 6 makes the appearance of the quantitative powder feeding mechanism neater. An installation hole 61 corresponding to the position of the powder outlet through hole 31 is provided at the bottom of the outer cylinder 6, and the powder outlet through hole 31 extends into the installation hole 61, which is convenient for milk powder to be discharged from the outer cylinder 6. In addition, the setting of the outer cylinder 6 can further isolate external water vapor and prevent the milk powder from getting damp and caking due to water vapor entering the material bin 1 through the powder outlet through hole 31.

[0049] Preferably, referring to Figure 1 , Figure 2 and Figure 11 , the quantitative powder feeding mechanism further includes an installation platform 7. The motor 41 is fixedly installed on the installation platform 7. In addition, a connection hole 71 is provided on the installation platform 7. The connection hole 71 extends upward into the installation hole 61 and is snapped into the connection hole 71, and the powder outlet through hole 31 is snapped into the connection hole 71.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quantitative powder feeding mechanism, characterized in that: The invention comprises a material bin (1), a movable plate (2) and a fixed plate (3) which are arranged in sequence from top to bottom, wherein a powder inlet through hole (11) is provided at the bottom of the material bin (1), the movable plate (2) is slidably arranged on the bottom surface of the material bin (1), a material storage through hole (21) is provided on the movable plate (2), and a powder outlet through hole (31) is provided on the fixed plate (3); It also comprises a pushing assembly (4), wherein the pushing assembly (4) is used to push the movable plate (2) to slide back and forth between a first position and a second position at the bottom of the silo (1); When the movable plate (2) is in the first position, the material storage through hole (21) is aligned with the powder inlet through hole (11), and the material storage through hole (21) and the powder outlet through hole (31) are staggered; when the movable plate (2) is in the second position, the material storage through hole (21) is aligned with the powder outlet through hole (31), and the material storage through hole (21) and the powder inlet through hole (11) are staggered.

2. The quantitative powder feeding mechanism according to claim 1, characterized in that: A first through hole (22) is provided in the middle of the movable plate (2), and the first through hole (22) has a front abutting surface (221) and a rear abutting surface (222); The pushing assembly (4) comprises a motor (41) and a rotating arm (42), wherein the rotating arm (42) is arranged in the first through hole (22), and the output shaft of the motor (41) passes through the fixed plate (3) and the first through hole (22), and is connected to the rotating shaft of the rotating arm (42) by transmission, so that the rotating arm (42) reciprocates against the front abutment surface (221) and the rear abutment surface (222), thereby driving the movable plate (2) to reciprocate between the first position and the second position.

3. The quantitative powder feeding mechanism according to claim 2, characterized in that: The first through hole (22) is an elliptical hole, the front abutment surface (221) and the rear abutment surface (222) are the two long sides of the elliptical hole, and the length of the rotating arm (42) is shorter than the short axis of the elliptical hole.

4. The quantitative powder feeding mechanism according to claim 2, characterized in that: It also includes a mounting platform (7), and the motor (41) is fixedly mounted on the mounting platform (7).

5. The quantitative powder feeding mechanism according to claim 2, characterized in that: A powder scraping assembly (5) is rotatably arranged in the silo (1).

6. The quantitative powder feeding mechanism according to claim 5, characterized in that: The powder scraping assembly (5) comprises a stirring shaft (51) and a plurality of stirring paddles (52) arranged on the periphery of the stirring shaft (51); A third through hole (12) is provided in the middle of the silo (1), and the upper part of the rotating shaft of the rotating arm (42) passes through the third through hole (12) and is transmission-connected to the stirring shaft (51).

7. The quantitative powder feeding mechanism according to claim 1, characterized in that: One of the bottom surface of the silo (1) and the top surface of the movable plate (2) is provided with a limiting guide groove, and the other is provided with a limiting guide rib, and the limiting guide rib slides in the limiting guide groove.

8. The quantitative powder feeding mechanism according to claim 1, characterized in that: The bottom of the silo (1) is provided with a groove (14), the movable plate (2) and the fixed plate (3) are both located in the groove (14), and the fixed plate (3) is snap-connected with the bottom of the silo (1).

9. The quantitative powder feeding mechanism according to claim 8, characterized in that: A clamping piece is provided on at least one side surface of the fixing plate (3), and a clamping groove corresponding to the clamping piece is provided on the bottom surface of the silo (1), and the clamping piece is clamped in the clamping groove.

10. The quantitative powder feeding mechanism according to claim 1, characterized in that: The invention also comprises an outer cylinder (6), wherein the silo (1), the movable plate (2) and the fixed plate (3) are all located inside the outer cylinder (6), and a mounting hole (61) corresponding to the position of the powder outlet through hole (31) is provided at the bottom of the outer cylinder (6), and the powder outlet through hole (31) extends into the mounting hole (61).

Images