A filling device for granular instant powder

Abstract

This invention provides a filling device for granular powder processing, belonging to the technical field of filling equipment. It includes a main filling nozzle, an outer sealing slide, and an upper storage tank. The outer sealing slide is located on the lower outer side of the main filling nozzle. The main filling nozzle is slidably connected to the lower part of the upper storage tank. A side air inlet pipe is connected to the upper part of the main filling nozzle. The tail end of the side air inlet pipe is rotatably connected to an inner one-way baffle via a hinge. A side dust collection pipe is connected to the upper part of the main filling nozzle. A lower partition ring, a middle partition ring, and an upper partition ring are sequentially fixedly connected to the upper inner side of the main filling nozzle. An upper connecting slide column is fixedly connected to the top of the outer sealing slide in a ring array. The side air inlet pipe introduces external air, increasing the flow velocity on the side away from the side dust collection pipe, pushing dust towards the side dust collection pipe, eliminating airflow dead zones, and solving the problem that the airflow velocity on the side away from the side dust collection pipe is slower than near the dust collection port, forming a significant airflow dead zone.

Description

Technical Field

[0001] This invention relates to the field of filling equipment technology, and in particular to a filling equipment for processing granular powder. Background Technology

[0002] Granule filling equipment is a device that automatically fills granular materials (such as cold medicine granules, Banlangen granules, solid beverages) into bottles, bags, or cans according to a set dosage.

[0003] There is a gap between the filling head and the bottle during filling. The impact and collision of particles during filling will generate dust that rises and overflows from the gap between the filling head and the bottle. The dust tends to accumulate on the inner wall of the filling head and at the bottle mouth. Long-term accumulation can also breed bacteria and increase the risk of cross-contamination. At the same time, the accumulated dust will periodically fall into the finished product, which seriously affects the stability of product quality. Existing dust collection technology generally suffers from uneven airflow distribution. The airflow speed on the side away from the side dust collection pipe is slower than that near the dust collection port, forming obvious airflow dead zones, and the dust collection on the side away from the side dust collection pipe is lower. Summary of the Invention

[0004] This invention provides a filling device for granular powder processing. An S-shaped tortuous air duct is created by a lower partition ring, a middle partition ring, and an upper partition ring, ensuring effective dust collection while preventing material from being directly sucked into the side dust collection pipe. An outer sealing slide, a lower sealing rubber ring, an outer corrugated sealing cover, and the main filling nozzle form a complete sealed enclosure, preventing dust generated during filling from overflowing outwards along the gap between the main filling nozzle and the can. A side air inlet pipe introduces external air, forming a directional airflow that increases the airflow velocity on the side away from the side dust collection pipe, pushing dust towards the side dust collection pipe and eliminating dead airflow angles.

[0005] This invention provides a filling device for granular powder processing, specifically including a main filling nozzle, an outer sealing slide, and an upper storage tank. The outer sealing slide is provided on the lower outer side of the main filling nozzle. The main filling nozzle is slidably connected to the lower part of the upper storage tank. A side air inlet pipe is connected to the upper part of the main filling nozzle. The tail end of the side air inlet pipe is rotatably connected to an inner one-way baffle via a hinge. A side dust collection pipe is connected to the upper part of the main filling nozzle. A lower partition ring, a middle partition ring, and an upper partition ring are sequentially fixedly connected to the upper inner side of the main filling nozzle. The lower partition ring, the middle partition ring, and the upper partition ring are all circular ring structures. The outer edge of the middle partition ring and the inner wall of the main filling nozzle are spaced apart. The middle partition ring is located above the lower partition ring. The lower partition ring, the middle partition ring, and the upper partition ring form a labyrinthine airflow channel.

[0006] Furthermore, the inner one-way baffle is located inside the main filling nozzle and is normally sealed to the inner end face of the side air inlet pipe. The inner one-way baffle is located between the lower partition ring and the upper partition ring. External air enters the main filling nozzle at a constant speed through the side air inlet pipe, increasing the airflow speed on the side away from the side dust collection pipe and pushing the dust towards the side dust collection pipe.

[0007] Furthermore, the side dust collection pipe and the side air inlet pipe are symmetrically arranged on both sides of the main filling nozzle. The side dust collection pipe is located above the upper partition ring, the upper partition ring is located above the middle partition ring, and the middle partition ring is located above the lower partition ring.

[0008] Furthermore, the lower partition ring, the middle partition ring, and the upper partition ring are axially spaced apart, and the inner edges of the lower partition ring and the upper partition ring overlap with the outer edge of the middle partition ring in axial projection. Together, the lower partition ring, the middle partition ring, and the upper partition ring form a labyrinthine airflow channel.

[0009] Furthermore, the top of the outer sealing slide is fixedly connected with an upper connecting slide column and an upper supporting spring, and the bottom of the outer sealing slide is fixedly connected with a lower sealing rubber ring. The lower sealing rubber ring is made of flexible rubber and seals the filling bottle body to prevent dust from overflowing. The bottom of the outer sealing slide is fixedly connected with an outer corrugated sealing cover, which is a retractable corrugated rubber tube structure.

[0010] Furthermore, the upper connecting slide column and the main filling nozzle are axially slidably connected, the top of the upper support spring is fixedly connected to the main filling nozzle, and the upper end of the outer corrugated sealing cover is fixedly connected to the main filling nozzle. The outer corrugated sealing cover covers the outside of the upper connecting slide column and the upper support spring. Under the elastic force of the upper support spring, the lower sealing rubber ring fits against the bottle mouth and remains in a compressed state. The lower sealing rubber ring blocks the annular gap between the main filling nozzle and the filling bottle. At the same time, the outer corrugated sealing cover covers and seals the gap between the outer sealing slide and the main filling nozzle.

[0011] Furthermore, an inner electric rotating shaft is rotatably connected to the middle of the upper storage tank, and a drive motor is fixedly connected to the top of the upper storage tank. The output shaft of the drive motor is coaxially and fixedly connected to the upper end of the inner electric rotating shaft. The inner electric rotating shaft is fixedly equipped with an upper stirring blade, a middle spiral tooth, and a lower tray from top to bottom. The upper stirring blade stirs the granular material in the upper storage tank. A lower support is fixedly connected to the lower outer side of the upper storage tank. A negative pressure dust collector is fixedly connected to the middle of the lower support. A negative pressure fan and a replaceable filter element are sequentially arranged inside the negative pressure dust collector. A lower telescopic cylinder is fixedly connected to the lower outer side of the upper storage tank.

[0012] Furthermore, the air inlet of the negative pressure dust collector is connected to the side dust collection pipe, the telescopic rod of the lower telescopic cylinder is fixedly connected to the main filling nozzle, the lower telescopic cylinder drives the main filling nozzle to move downward to the filling bottle outlet, the lower tray is located below the lower partition ring, the middle spiral tooth pushes the material downward at a uniform speed onto the lower tray, and the lower tray uses centrifugal force to throw the granular powder into the main filling nozzle.

[0013] This invention provides a filling device for processing granular powders, which has the following beneficial effects: The side dust collection pipe is connected to the negative pressure dust collector, which generates negative pressure inside the main filling nozzle to collect the dust generated by the impact of particles inside the main filling nozzle. This avoids dust accumulation around the main filling nozzle and the filling bottle. The S-shaped tortuous air duct is created by the lower baffle ring, middle baffle ring and upper baffle ring, which not only ensures the dust collection effect, but also prevents the material from being directly sucked into the side dust collection pipe.

[0014] The side air intake pipe, together with the inner one-way baffle, forms a one-way air intake structure. The side air intake pipe introduces external air, forming a directional airflow, increasing the airflow speed on the side away from the side dust collection pipe, pushing the dust towards the side dust collection pipe, eliminating airflow dead zones, and avoiding the situation where the airflow speed on the side away from the side dust collection pipe is slow, the dust collection efficiency is low, and dust accumulation is easy to occur.

[0015] During granular powder filling, the lower sealing rubber ring adheres to the top of the tank. The outer sealing slide, the lower sealing rubber ring, the outer corrugated sealing cover, and the main filling nozzle form a complete sealing cover. This prevents dust generated during filling from overflowing outwards along the gap between the main filling nozzle and the tank. Instead, it directs the dust generated during filling towards the inside of the main filling nozzle for centralized dust collection, achieving dust-free filling operations and improving the working environment of the production workshop. Attached Figure Description

[0016] To more clearly illustrate the technical solution of the present invention, the accompanying drawings of the present invention will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0018] In the attached diagram: Figure 1 A schematic diagram of the overall structure of this application is shown; Figure 2 This paper shows a schematic diagram of a half-section of the upper storage tank of this application; Figure 3 This invention provides a schematic diagram showing a partial cross-section of the main filling nozzle. Figure 4 A schematic diagram of the lower sealing rubber ring structure of this application is shown; Figure 5 A schematic diagram of the structure of the outer sealing carriage of this application is shown; Figure 6 A schematic diagram of the internal electric rotating shaft of this application is shown; Figure 7 A schematic diagram of the structure of the partition ring of this application is shown; Figure 8 This diagram shows the structure of the main filling nozzle and the upper storage tank in their separated states.

[0019] Figure label: 1. Main filling nozzle; 101. Side air inlet pipe; 102. Inner one-way baffle; 103. Side dust collection pipe; 104. Lower partition ring; 105. Middle partition ring; 106. Upper partition ring; 2. Outer sealing slide; 201. Upper connecting slide column; 202. Upper support spring; 203. Lower sealing rubber ring; 204. Outer corrugated sealing cover; 3. Upper storage tank; 301. Inner electric rotating shaft; 302. Upper stirring blade; 303. Middle spiral gear; 304. Lower tray; 305. Lower support; 306. Negative pressure dust collector; 307. Lower telescopic cylinder. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to... Figures 1 to 8 : This invention proposes a filling device for granular powder processing, including a main filling nozzle 1, an outer sealing slide 2, and an upper storage tank 3. The main filling nozzle 1 is a tapered tube structure that is wider at the top and narrower at the bottom. A side air inlet pipe 101 is connected to the upper part of the main filling nozzle 1. The tail end of the side air inlet pipe 101 is rotatably connected to an inner one-way baffle 102 via a hinge. A side dust collection pipe 103 is connected to the upper part of the main filling nozzle 1. A lower partition ring 104, a middle partition ring 105, and an upper partition ring 106 are sequentially fixedly connected to the upper inner side of the main filling nozzle 1. All rings 106 are circular ring structures. The side dust collection pipes 103 and side air inlet pipes 101 are symmetrically arranged on both sides of the main filling nozzle 1. The side dust collection pipes 103 are located above the upper partition ring 106, and the upper partition ring 106 is located above the middle partition ring 105. The outer edge of the middle partition ring 105 and the inner wall of the main filling nozzle 1 are spaced apart. The middle partition ring 105 is located above the lower partition ring 104. The lower partition ring 104, the middle partition ring 105, and the upper partition ring 106 form a labyrinthine airflow channel. An outer sealing slide 2 is provided on the lower outer side of the main filling nozzle 1. The outer sealing slide 2 surrounds... On the outside of the main filling nozzle 1, the top of the outer sealing slide 2 is fixedly connected with an upper connecting slide column 201 and an upper support spring 202 in a ring array. The bottom of the outer sealing slide 2 is fixedly connected with a lower sealing rubber ring 203, which is made of flexible rubber and fits snugly against the bottle mouth to prevent dust from overflowing. The bottom of the outer sealing slide 2 is fixedly connected with an outer corrugated sealing cover 204, which is a retractable corrugated rubber tube structure. The upper connecting slide column 201 and the main filling nozzle 1 are axially slidably connected. The top of the upper support spring 202... The upper end of the outer corrugated sealing cover 204 is fixedly connected to the main filling nozzle 1. The outer corrugated sealing cover 204 covers the outside of the upper connecting slide column 201 and the upper support spring 202. Under the elastic force of the upper support spring 202, the lower sealing rubber ring 203 fits against the bottle mouth and remains in a compressed state. The lower sealing rubber ring 203 blocks the annular gap between the main filling nozzle 1 and the filling bottle. At the same time, the outer corrugated sealing cover 204 covers and seals the gap between the outer sealing slide 2 and the main filling nozzle 1, preventing the dust generated during filling from overflowing out of the bottle mouth gap. The main filling nozzle 1 is slidably connected to the lower part of the upper storage tank 3. An inner electric rotating shaft 301 is rotatably connected to the middle of the upper storage tank 3. A drive motor is fixedly connected to the top of the upper storage tank 3. The output shaft of the drive motor is coaxially fixedly connected to the upper end of the inner electric rotating shaft 301. The inner electric rotating shaft 301 is fixedly provided with an upper stirring blade 302, a middle spiral tooth 303 and a lower tray 304 from top to bottom. The middle spiral tooth 303 is a spiral structure. The upper stirring blade 302 stirs the granular material in the upper storage tank 3. A lower support 305 is fixedly connected to the lower outer side of the upper storage tank 3. A negative pressure dust collector 306 is fixedly connected to the middle of the lower support 305. A negative pressure fan and a replaceable filter element are arranged in sequence inside the negative pressure dust collector 306. A lower telescopic cylinder 307 is fixedly connected to the lower outer side of the upper storage tank 3.

[0022] In this embodiment, the inner one-way baffle 102 is located inside the main filling nozzle 1. The tail end of the side air inlet pipe 101 is inclined. The inner one-way baffle 102 is also inclined along with the inclined opening of the side air inlet pipe 101. Under normal conditions, the inner one-way baffle 102 automatically resets under its own gravity. The inner one-way baffle 102 is sealed to the inner end face of the side air inlet pipe 101 to prevent dust backflow. The inner one-way baffle 102 is located between the lower partition ring 104 and the upper partition ring 106. External air enters the interior of the main filling nozzle 1 at a uniform speed through the side air inlet pipe 101, increasing the airflow speed on the side away from the side dust collection pipe 103 and pushing the dust to flow towards the side dust collection pipe 103. This makes the dust collection efficiency of each area inside the main filling nozzle 1 uniform and consistent, improving the overall dust collection rate.

[0023] In this embodiment, the lower partition ring 104, the middle partition ring 105, and the upper partition ring 106 are axially spaced apart. The inner edges of the lower partition ring 104 and the upper partition ring 106 overlap with the outer edge of the middle partition ring 105 in axial projection. The lower partition ring 104, the middle partition ring 105, and the upper partition ring 106 together form a labyrinth-like airflow channel. Larger, qualified particles fall directly into the filling bottle, while lighter dust particles are smoothly carried by the airflow through the labyrinth channel into the side dust collection pipe 103, ensuring dust collection effect and avoiding the problem of negative pressure dust collection easily sucking away materials.

[0024] In this embodiment, the air inlet of the negative pressure dust collector 306 is connected to the side dust collection pipe 103. The telescopic rod of the lower telescopic cylinder 307 is fixedly connected to the main filling nozzle 1. The lower telescopic cylinder 307 drives the main filling nozzle 1 to move downward into the bottle mouth. The lower tray 304 is located below the lower partition ring 104. The middle spiral tooth 303 pushes the material downward at a uniform speed onto the lower tray 304. The lower tray 304 uses centrifugal force to throw the granular powder into the main filling nozzle 1.

[0025] In this second embodiment, based on the first embodiment, the inner walls of the main filling nozzle 1, the lower partition ring 104, the middle partition ring 105, and the upper partition ring 106 are all coated with a food-grade Teflon non-stick coating, further reducing the adhesion of dust to the inner walls of the main filling nozzle 1, the lower partition ring 104, the middle partition ring 105, and the upper partition ring 106.

[0026] The working principle of this invention: Granular powder is stored inside the upper storage tank 3 and transported to the filling bottles via a conveyor belt. After the bottles are transported to the filling station, the lower telescopic cylinder 307 drives the main filling nozzle 1 to move downwards. The main filling nozzle 1 and the outer sealing slide 2 move downwards synchronously. The main filling nozzle 1 moves downwards into the bottle mouth, and the lower sealing rubber ring 203 at the bottom of the outer sealing slide 2 first contacts the bottle mouth end face. The main filling nozzle 1 continues to move downwards and compresses the upper support spring 202. The compressed upper support spring 202 increases the elastic support force of the lower sealing rubber ring 203, supporting the lower sealing rubber ring 203 to fit against the bottle mouth and maintain a compressed state, sealing the annular gap between the main filling nozzle 1 and the bottle. The outer corrugated sealing cover 204 extends and retracts synchronously with the outer sealing slide 2, always sealing the outer sealing slide 2 and the main filling nozzle. The sliding gap between the nozzles 1 forms a completely enclosed filling space; the outer corrugated sealing cover 204 completely seals the gap between the outer sealing slide 2 and the main filling nozzle 1, eliminating the possibility of dust generated during filling overflowing from the bottle opening gap, forcing all dust to flow into the main filling nozzle 1 within the enclosed space and be collected, achieving truly dust-free filling operations and significantly improving the working environment of the production workshop; then, the drive motor drives the inner electric rotating shaft 301 to rotate, and the upper stirring blade 302 stirs the granular material in the upper storage tank 3 to prevent bridging and clumping; the middle spiral tooth 303 pushes the material downward at a uniform speed onto the lower tray 304, and by controlling the number of rotations of the drive motor, precise quantitative feeding of a single package of granular powder is achieved. The lower tray 304 rotates circumferentially and uses centrifugal force to throw the granular powder onto the main filling nozzle 1, and the powder inside the main filling nozzle 1 falls into the filling bottle; A fixed quantity of material is thrown from above the lower tray 304 into the main filling nozzle 1. The impact of the particles on the inner wall of the main filling nozzle 1 generates upward dust. At this time, the negative pressure dust collector 306 is activated. The negative pressure dust collector 306 is connected to the main filling nozzle 1 through the side dust collection pipe 103, forming a stable negative pressure field inside the main filling nozzle 1. This can collect the dust generated by the particle impact and prevent dust accumulation around the main filling nozzle 1 and the filling bottle. When the dust flows upward with the airflow, it passes through the S-shaped tortuous labyrinth air duct formed by the staggered arrangement of the lower baffle ring 104, the middle baffle ring 105, and the upper baffle ring 106. Larger qualified particles fall directly into the filling bottle, while lighter dust passes smoothly through the labyrinth air duct with the airflow and enters the side dust collection pipe 103. The dust enters the negative pressure dust collector 306 through the side dust collection pipe 103 and is filtered and collected. This ensures the dust collection effect and avoids the problem of the negative pressure dust collector easily sucking away the material. The one-way air intake structure, formed by the side air intake pipe 101 and the inner one-way baffle 102, automatically opens the inner one-way baffle 102 due to the negative pressure inside the main filling nozzle 1. External air enters at a constant speed through the side air intake pipe 101. This air intake, symmetrically arranged with the side dust collection pipe 103 on both sides of the main filling nozzle 1, forms a directional airflow circulation. During filling, the negative pressure inside the main filling nozzle 1 automatically opens the inner one-way baffle 102, allowing external air to enter the main filling nozzle 1 at a constant speed through the side air intake pipe 101. This increases the airflow speed on the side away from the side dust collection pipe 103, pushing dust towards the side dust collection pipe 103. Eliminating airflow dead zones ensures uniform dust collection efficiency in all areas inside the main filling nozzle 1, improving the overall dust collection rate and resolving the problem of slow airflow and dust accumulation on the side away from the side dust collection pipe 103. After filling, the lower telescopic cylinder 307 drives the main filling nozzle 1 to return to its original position, and the lower sealing rubber ring 203 disengages from the bottle mouth. The negative pressure dust collector 306 closes with a delay, sucking away the residual dust inside the main filling nozzle 1. After the negative pressure dust collector 306 closes, the inner one-way baffle 102 automatically returns to its original position under its own gravity, sealing against the end face of the side air inlet pipe 101 to prevent dust backflow.

[0027] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only involve structures relevant to the embodiments disclosed herein; other structures may refer to general designs.

[0028] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0029] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A filling device for processing granular powder, comprising: The main filling nozzle (1), the outer sealing slide (2), and the upper storage tank (3) are characterized in that the lower outer side of the main filling nozzle (1) is provided with an outer sealing slide (2), the main filling nozzle (1) is slidably connected to the lower part of the upper storage tank (3), the upper part of the main filling nozzle (1) is connected with a side air inlet pipe (101), the tail end of the side air inlet pipe (101) is rotatably connected with an inner one-way baffle (102) through a hinge, the upper part of the main filling nozzle (1) is connected with a side dust collection pipe (103), and the upper inner side of the main filling nozzle (1) is sequentially fixedly connected with a lower partition ring (104), a middle partition ring (105), and an upper partition ring (106).

2. The filling equipment for processing granular powder according to claim 1, characterized in that, The inner one-way baffle (102) is located inside the main filling nozzle (1), and the inner one-way baffle (102) is located between the lower partition ring (104) and the upper partition ring (106).

3. The filling equipment for processing granular powder according to claim 1, characterized in that, The side dust collection pipe (103) and the side air inlet pipe (101) are symmetrically arranged on both sides of the main filling nozzle (1). The side dust collection pipe (103) is located above the upper partition ring (106), the upper partition ring (106) is located above the middle partition ring (105), and the middle partition ring (105) is located above the lower partition ring (104).

4. The filling equipment for processing granular powder according to claim 1, characterized in that, The lower partition ring (104), the middle partition ring (105) and the upper partition ring (106) are axially spaced apart, and the inner edges of the lower partition ring (104) and the upper partition ring (106) overlap with the outer edge of the middle partition ring (105) in axial projection.

5. The filling equipment for processing granular powder according to claim 1, characterized in that, The outer sealing slide (2) has an upper connecting slide column (201) and an upper support spring (202) fixedly connected in an annular array at the top, a lower sealing rubber ring (203) fixedly connected at the bottom, and an outer corrugated sealing cover (204) fixedly connected at the bottom.

6. The filling equipment for processing granular powder according to claim 5, characterized in that, The upper connecting slide column (201) and the main filling nozzle (1) are slidably connected, the top of the upper support spring (202) is fixedly connected to the main filling nozzle (1), the upper end of the outer corrugated sealing cover (204) is fixedly connected to the main filling nozzle (1), and the outer corrugated sealing cover (204) covers the outside of the upper connecting slide column (201) and the upper support spring (202).

7. The filling equipment for processing granular powder according to claim 1, characterized in that, The upper storage tank (3) is rotatably connected to an inner electric shaft (301) in the middle. The inner electric shaft (301) is fixedly provided with an upper stirring blade (302), a middle spiral tooth (303) and a lower tray (304) from top to bottom. The lower outer side of the upper storage tank (3) is fixedly connected to a lower support (305). The lower support (305) is fixedly connected to a negative pressure dust collector (306) in the middle. The lower outer side of the upper storage tank (3) is fixedly connected to a lower telescopic cylinder (307).

8. The filling equipment for processing granular powder according to claim 7, characterized in that, The air inlet of the negative pressure dust collector (306) is connected to the side dust collection pipe (103), the telescopic rod of the lower telescopic cylinder (307) is fixedly connected to the main filling nozzle (1), and the lower tray (304) is located below the lower partition ring (104).

Images