A filling metering structure with airflow blowing material from bottom to top

Abstract

The utility model relates to a filling metering structure, specifically relates to a filling metering structure of airflow from bottom to top blowing material, the utility model provides a filling metering structure of airflow from bottom to top blowing material, including lower carousel, upper carousel, lower blow nozzle and guide component, upper carousel top is equipped with material, and upper carousel is set up with a plurality of metering cup holes, and the top of metering cup hole is pressed and is equipped with guide component, and the lower blow nozzle is slidably connected in metering cup hole, and the junction of lower blow nozzle and metering cup hole is equipped with sealing cone, and sealing cone is connected with the lower blow nozzle top spacing, and lower blow nozzle is fixedly connected with lower carousel, and lower carousel rotates with upper carousel synchronously, lower carousel is seted up with first air inlet, and first air inlet is communicated with lower blow nozzle, and lower carousel is connected with lifting assembly, and lifting assembly is used for driving lower carousel to move up and down, and the length of lower blow nozzle in metering cup hole is adjusted, the technical problem that the existing airflow filling metering structure is easy to fill inaccuracy because of material caking is solved.

Description

Technical Field

[0001] This utility model relates to a filling and metering structure, specifically a filling and metering structure in which airflow blows material from bottom to top. Background Technology

[0002] With the rapid development of modern industry, the storage and transportation of powders and related equipment are receiving increasing attention. In modern powder metering devices, pneumatic material transport is gaining popularity. Among these, filling and metering structures using a blowing method are an essential component. However, powders are prone to agglomeration in metering structures. Agglomerated material is difficult to transport pneumatically, leading to material accumulation and potentially significant filling errors. Utility Model Content

[0003] The main purpose of this invention is to provide a filling and metering structure that blows material from bottom to top, which solves the technical problem that existing airflow filling and metering structures are prone to inaccurate filling due to material agglomeration.

[0004] To achieve the above objectives, this utility model provides a filling and metering structure for airflow blowing material from bottom to top, including a lower turntable, an upper turntable, a lower nozzle, and a material guiding component;

[0005] The upper turntable is loaded with material on top and has multiple metering cup holes. A material guide component is pressed on the top of each metering cup hole. A lower nozzle is slidably connected inside the metering cup hole. A sealing cone is provided at the junction of the lower nozzle and the metering cup hole. The sealing cone is limited and connected to the top of the lower nozzle. The lower nozzle is fixedly connected to the lower turntable. The lower turntable rotates synchronously with the upper turntable. The lower turntable has a first air inlet, which is connected to the lower nozzle.

[0006] The lower turntable is connected to a lifting assembly, which is used to move the lower turntable up and down to adjust the length of the lower nozzle inside the measuring cup hole.

[0007] Preferably, the material guiding component includes a clamping guide head, a clamping sleeve, and a sealing head;

[0008] The bottom of the sealing head abuts against the top of the upper turntable, and the top of the sealing head is sealed to the pressing guide head. A pressing sleeve is slidably connected to the outside of the pressing guide head. The pressing sleeve is suspended on the top of the upper turntable. A sealing cavity is left between the pressing sleeve and the pressing guide head. A spring is installed in the sealing cavity, and the two ends of the spring abut against the pressing guide head and the pressing sleeve, respectively.

[0009] Preferably, the clamping sleeve is suspended on the top of the upper turntable by a fixing frame, and the clamping sleeve has a second air inlet, through which high-pressure airflow enters the sealing cavity.

[0010] Preferably, the sealing cone has its tip pointing downwards, and the sealing cone has a transverse elongated groove. A limiting rod is inserted into the elongated groove, and the diameter of the limiting rod is smaller than the diameter of the elongated groove.

[0011] Preferably, the lower turntable side wall has a first air inlet, which is sealed to the lower nozzle.

[0012] Preferably, the middle parts of the lower turntable and the middle parts of the upper turntable are connected by the same rotating shaft;

[0013] The lifting assembly includes a lead screw, a column, a rotating arm, and a support plate. The lead screw is vertically arranged and rotatably connected to the support plate. One end of the lead screw is threadedly connected to the rotating arm. The middle part of the rotating arm is rotatably connected to the column. The column is fixedly connected to the support plate. The other end of the rotating arm is connected to the bottom of the lower turntable.

[0014] Preferably, an outer baffle plate and an inner baffle plate are fixedly provided on the top of the upper turntable, with the outer baffle plate located outside the inner baffle plate, and a metering cup hole provided between the outer baffle plate and the inner baffle plate.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] This invention allows for the adjustment of the position of the sealing cone at the metering cup hole by adjusting the position of the lower turntable, thereby changing the volume of the metering cup and enabling continuous adjustment of the metering volume without stopping the machine. A sealing cone is connected to the upper limit of the lower nozzle. When no air is supplied, the sealing cone and the lower nozzle are combined and sealed together, preventing material from entering the lower nozzle. When high-pressure airflow enters the lower nozzle from the first air inlet, the high-pressure airflow pushes the sealing cone upwards rapidly, and the seal is broken, opening the airflow channel. The high-pressure gas carries the material through the guide component into the packaging bag. Due to the sudden opening of the airflow channel, the upward movement of the sealing cone disperses the material, which is more conducive to the flow of material during airflow.

[0017] When the high-pressure airflow is suddenly activated, it will cause the pressing guide head to move upward, which will destroy the seal between the sealing head and the upper turntable and force the material to spray out from below the sealing head. This utility model sets up a sealing cavity. When the high-pressure gas enters the sealing cavity, since the pressing sleeve is fixed, the pressing guide head will be pressed down on the upper turntable by the high-pressure gas, thereby preventing the material from spraying out from below the sealing head. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a cross-sectional view of a bottom-up blowing material filling and metering structure disclosed in a specific embodiment of this utility model;

[0020] Figure 2This is a schematic diagram of a bottom-up blowing material filling and metering structure disclosed in a specific embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Lower turntable; 11. First air inlet; 2. Upper turntable; 21. Measuring cup hole; 22. Outer baffle plate; 23. Inner baffle plate; 3. Lower nozzle; 31. Limiting rod; 4. Material guiding component; 41. Pressing guide head; 42. Pressing sleeve; 421. Second air inlet; 43. Sealing head; 44. Sealing cavity; 45. Spring; 5. Material; 6. Sealing cone; 61. Long oval groove; 7. Fixing frame; 8. Rotating shaft; 9. Lifting assembly; 91. Lead screw; 92. Column; 93. Rotating arm; 94. Support plate. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] like Figure 1 , Figure 2 As shown, this utility model discloses a filling and metering structure for bottom-up airflow, including a lower turntable 1, an upper turntable 2, a lower nozzle 3, and a material guiding component 4. The top of the upper turntable 2 is used to hold material 5. To prevent material 5 from falling from above the upper turntable 2, an outer baffle plate 22 and an inner baffle plate 23 can be fixedly installed on the top of the upper turntable 2. The outer baffle plate 22 is located outside the inner baffle plate 23, and the material 5 is placed between the outer baffle plate 22 and the inner baffle plate 23. A plurality of metering cup holes 21 are also provided between the outer baffle plate 22 and the inner baffle plate 23. As a preferred embodiment, the plurality of metering cup holes 21 are distributed at equal intervals along a circle on the upper turntable 2.

[0025] A guide component 4 is pressed above the metering cup hole 21. The guide component 4 is sealed to the top of the upper turntable 2 and serves as the output channel for the material 5. Specifically, the guide component 4 includes a pressing guide head 41, a pressing sleeve 42, and a sealing head 43. The sealing head 43 abuts against the top of the upper turntable 2 under pressure. The bottom of the sealing head 43 is sealed to the top of the upper turntable 2, and the top of the sealing head 43 is sealed to the pressing guide head 41. A channel is opened in the middle of the pressing guide head 41 for conveying the material 5. A packaging bag (not shown) is fitted onto the top of the pressing guide head 41. A pressing sleeve 42 is fitted around the pressing guide head 41 and is suspended from the top of the upper turntable 2. As a way of fixing the pressing sleeve 42, it is fixedly connected to the fixing frame 7. A sealing cavity 44 is provided between the clamping sleeve 42 and the clamping guide head 41. A spring 45 is provided in the sealing cavity 44. The two ends of the spring 45 abut against the clamping guide head 41 and the clamping sleeve 42 respectively, and the spring 45 is in a compressed state. By setting the spring 45, the sealing head 43 can be pressed on the upper turntable 2.

[0026] However, during the filling process, a sudden start of the high-pressure airflow can cause the pressing guide head 41 to move upwards, damaging the sealing surface between the sealing head 43 and the upper turntable 2. This forces the material 5 to spray out from below the sealing head 43, resulting in inaccurate metering and pollution of the packaging environment. Simply increasing the pressure of the spring 45 would cause severe wear on the sealing head 43 and the upper turntable 2. To solve these problems, a second air inlet 421 is provided on the side wall of the pressing sleeve 42. In use, high-pressure airflow is introduced through the second air inlet 421 and enters the sealing cavity 44. Since the pressing sleeve 42 is fixed, the pressing guide head 41 is pressed downwards onto the upper turntable 2 by the high-pressure airflow. Calculations show that the downward air pressure plus the pressure of the spring 45 is greater than the upward pressure, effectively solving the material spraying problem.

[0027] A lower nozzle 3 is slidably connected inside the metering cup hole 21. A sealing cone 6 is provided at the junction of the lower nozzle 3 and the metering cup hole 21, and the sealing cone 6 is limited to the top of the lower nozzle 3. As a limiting connection method, the tip (i.e., cone tip) of the sealing cone 6 is set downwards, and the sealing cone 6 has a transverse elongated groove 61. A limiting rod 31 is inserted into the elongated groove 61, and the diameter of the limiting rod 31 is smaller than the diameter of the elongated groove 61. In use, when the high-pressure airflow does not enter the lower nozzle 3, the sealing cone 6 and the lower nozzle 3 are sealed together; when the high-pressure airflow enters the lower nozzle 3, because the diameter of the limiting rod 31 is smaller than the diameter of the elongated groove 61, the sealing cone 6 can move upwards, thereby breaking the sealing between the sealing cone 6 and the lower nozzle 3, and the high-pressure airflow enters the pressing guide head 41. It should be noted that the diameter of the sealing cone 6 is smaller than the inner diameter of the metering cup orifice 21. When the high-pressure airflow enters the lower nozzle 3, the high-pressure airflow flows from bottom to top and blows the sealing cone 6 upward. After the sealing cone 6 moves upward, it breaks the sealing connection between the sealing cone 6 and the lower nozzle 3. Moreover, since the diameter of the sealing cone 6 is smaller than the inner diameter of the metering cup orifice 21, the high-pressure airflow quickly rushes in from the surrounding gaps and blows away the material under the strong flow force of the high-pressure airflow. At the same time, it carries the material and continues to flow upward, thereby breaking up the material 5.

[0028] Please continue to refer to this. Figure 1 The lower end of the lower nozzle 3 is fixedly connected to the lower turntable 1. The side wall of the lower turntable 1 has a first air inlet 11, which is sealed to the lower nozzle 3. The lower turntable 1 rotates synchronously with the upper turntable 2. In one embodiment, the center of the lower turntable 1 and the center of the upper turntable 2 are both connected to a rotating shaft 8. The rotating shaft 8 can drive the upper turntable 2 to rotate. The rotating shaft 8 is rotated by a servo motor. It should be noted that an air blowing device (not shown) is installed at the air inlet end of the first air inlet 11. A high-speed solenoid valve (not shown) is installed inside the air blowing device. High-pressure gas is introduced into the air inlet end of the air blowing device. When a pressure difference is formed between the two ends of the high-speed solenoid valve, the high-speed solenoid valve is activated. That is, when the metering cup hole 21 containing the material 5 rotates to below the sealing head 43, the lower nozzle 3 is connected to the first air inlet 11. The first air inlet 11 is connected to the air blowing device, forming a pressure difference between the air inlet end and the air outlet end of the air blowing device, thus activating the high-speed solenoid valve.

[0029] A lifting assembly 9 is provided at the bottom of the lower turntable 1. The lifting assembly 9 is used to drive the lower turntable 1 to move up and down along the rotating shaft 8, thereby adjusting the length of the lower nozzle 3 within the measuring cup hole 21, and thus adjusting the capacity of the measuring cup hole 21. In one embodiment, the lifting assembly 9 includes a lead screw 91, a column 92, a rotating arm 93, and a support plate 94. The lead screw 91 is vertically arranged, and its bottom is rotatably connected to the support plate 94. One end of the lead screw 91 is threadedly connected to the rotating arm 93, and the middle part of the rotating arm 93 is rotatably connected to the column 92. The column 92 is fixedly connected to the support plate 94, and the other end of the rotating arm 93 abuts against the bottom of the lower turntable 1. Please refer to [reference needed]. Figure 2When in use, rotating the lead screw 91 moves the right end of the rotating arm 93 downward or upward, thereby moving the left end of the rotating arm 93 upward or downward, thus adjusting the height of the lower turntable 1.

[0030] A scraper (not shown in the figure) is provided above the upper turntable 2. The scraper can also be suspended above the upper turntable 2 by the fixing frame 7. The scraper and the material guiding component 4 do not rotate with the upper turntable 2.

[0031] In use, the servo motor is started, driving the rotating shaft 8 to rotate. The rotating shaft 8 drives the upper turntable 2 and the lower turntable 1 to rotate synchronously. The scraper scrapes the material 5 into the metering cup hole 21. When the metering cup hole 21 containing the material 5 rotates to below the sealing head 43, the lower nozzle 3 connects to the first air inlet 11. A pressure difference is formed at both ends of the blowing device (not shown) located at the first air inlet 11, which then activates the high-speed solenoid valve. A high-pressure airflow enters the lower nozzle 3, which then pushes the sealing cone 6 upward, opening the airflow channel. The high-speed airflow carries the material 5 through the pressing guide head 41 into the packaging bag. Due to the sudden opening of the airflow channel, the sealing cone 6 moves upward, breaking up the material 5, which is more conducive to the flow of the material 5 during pneumatic conveying. When it is necessary to adjust the capacity of the metering cup hole 21, the lifting component 9 is adjusted, causing the lower turntable 1 to move up and down on the rotating shaft 8, and the sealing cone 6 to move up and down in the metering cup hole 21, thereby changing the volume of the metering cup hole 21.

[0032] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A filling and metering structure for bottom-up material blowing, characterized in that, It includes a lower turntable (1), an upper turntable (2), a lower nozzle (3), and a material guiding component (4); The upper turntable (2) is loaded with material (5) on top. The upper turntable (2) has multiple metering cup holes (21). A guide component (4) is pressed on the top of the metering cup hole (21). A lower nozzle (3) is slidably connected inside the metering cup hole (21). A sealing cone (6) is provided at the junction of the lower nozzle (3) and the metering cup hole (21). The sealing cone (6) is limited and connected to the top of the lower nozzle (3). The lower nozzle (3) is fixedly connected to the lower turntable (1). The lower turntable (1) rotates synchronously with the upper turntable (2). The lower turntable (1) has a first air inlet (11). The first air inlet (11) is connected to the lower nozzle (3). The lower turntable (1) is connected to a lifting assembly (9), which is used to drive the lower turntable (1) to move up and down, thereby adjusting the length of the lower nozzle (3) in the measuring cup hole (21).

2. The filling and metering structure for bottom-up airflow blowing of material according to claim 1, characterized in that, The material guiding component (4) includes a pressing guide head (41), a pressing sleeve (42), and a sealing head (43). The bottom of the sealing head (43) abuts against the top of the upper turntable (2), and the top of the sealing head (43) is sealed to the pressing guide head (41). A pressing sleeve (42) is slidably connected to the outside of the pressing guide head (41). The pressing sleeve (42) is suspended on the top of the upper turntable (2). A sealing cavity (44) is left between the pressing sleeve (42) and the pressing guide head (41). A spring (45) is provided in the sealing cavity (44). The two ends of the spring (45) abut against the pressing guide head (41) and the pressing sleeve (42) respectively.

3. The filling and metering structure for bottom-up airflow blowing of material according to claim 2, characterized in that, The clamping sleeve (42) is suspended on the top of the upper turntable (2) by a fixing frame (7). The clamping sleeve (42) has a second air inlet (421), and the high-pressure airflow enters the sealing cavity (44) through the second air inlet (421).

4. The filling and metering structure for bottom-up airflow blowing of material according to claim 1, characterized in that, The sealing cone (6) has its tip pointing downwards, and the sealing cone (6) has a transverse elongated groove (61). A limiting rod (31) is inserted into the elongated groove (61), and the diameter of the limiting rod (31) is smaller than the diameter of the elongated groove (61).

5. The filling and metering structure for bottom-up airflow blowing of material according to claim 1, characterized in that, The lower turntable (1) has a first air inlet (11) on its side wall, and the first air inlet (11) is sealed to the lower nozzle (3).

6. The filling and metering structure for bottom-up airflow blowing of material according to claim 1, characterized in that, The middle part of the lower turntable (1) and the middle part of the upper turntable (2) are connected by the same rotating shaft (8); The lifting assembly (9) includes a lead screw (91), a column (92), a rotating arm (93), and a support plate (94). The lead screw (91) is vertically arranged and rotatably connected to the support plate (94). One end of the lead screw (91) is threadedly connected to the rotating arm (93). The middle part of the rotating arm (93) is rotatably connected to the column (92). The column (92) is fixedly connected to the support plate (94). The other end of the rotating arm (93) is connected to the bottom of the lower turntable (1).

7. The filling and metering structure for bottom-up airflow blowing of material according to claim 1, characterized in that, The top of the upper turntable (2) is fixed with an outer baffle plate (22) and an inner baffle plate (23). The outer baffle plate (22) is located outside the inner baffle plate (23). The measuring cup hole (21) is provided between the outer baffle plate (22) and the inner baffle plate (23).

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