Powder filling machine

By using an extension tube and filter cloth disc structure in the powder filling machine, the problem of dust overflow during the powder filling process is solved, achieving higher filling accuracy and environmental cleanliness.

CN224159501UActive Publication Date: 2026-04-24NINGXIA THREE IND INTEGRATION IND DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA THREE IND INTEGRATION IND DEV CO LTD
Filing Date
2025-06-10
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

During the powder filling process, when the powder is rapidly injected into the container through the feeding pipe, the resulting airflow causes dust to overflow, affecting the cleanliness of the packaging container and the working environment, and reducing the accuracy of the metering.

Method used

The system employs an extension tube and filter cloth disc structure. The extension tube is inserted into the container and pressed against the container port by an elastic telescopic component. Together with the filter cloth disc, it intercepts the powder, slowly raises the feed, and combines with a cleaning mechanism to clear blockages, ensuring that the powder falls directly into the container.

Benefits of technology

It effectively prevents dust spillage, ensures the cleanliness of packaging containers and the working environment, and improves the accuracy of powder filling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a powder filling machine and relates to the technical field of filling machines, the powder filling machine comprises a filling device, the output end of the filling device is communicated with a feeding pipe, the outer surface of the feeding pipe is sleeved with an extension pipe in a sliding mode, and the filling device is provided with a releasing and collecting mechanism. The filter cloth disc is pressed at the end opening of the packaging container under the elastic force of the elastic telescopic piece, then the filling device is started to put powder into the packaging container through the extension pipe, and meanwhile, the extension pipe is gradually lifted along with the increase of the powder in the container through the releasing and retracting mechanism until the extension pipe is pulled out of the container, so that filling is completed; the extension pipe is used as a feeding pipeline, so that powder directly falls into the container, the end opening of the container is intercepted in cooperation with the filter cloth disc, dust overflow caused by friction with a bottle opening or air disturbance in the falling process is avoided, and the cleanliness of the container and the working environment and the precision of quantitative filling are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of filling machine technology, and more specifically, to a powder filling machine. Background Technology

[0002] Probiotic powder is a solid preparation with active probiotics as the main component. It is usually made by mixing probiotic strains with protectants (such as skim milk powder and maltodextrin), excipients, etc., and then drying them into powder products. It is widely used in health foods (such as probiotic solid beverages), infant foods (such as probiotic milk powder additives), dietary supplements, and some animal feed additives.

[0003] Currently, during the production process of probiotic powder, a filling machine is used to quantitatively fill it into packaging containers. However, when the powder is rapidly injected into the container through the feeding pipe of the filling machine, the original air inside the bottle is compressed, generating an upward airflow that carries the powder particles toward the bottle opening. This causes some powder to overflow from the container as dust, which not only affects the cleanliness of the packaging container and the working environment, but also reduces the accuracy of the powder dosage, resulting in a certain amount of powder waste. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a powder filling machine to solve the problem that when powder is rapidly injected into the container through the feeding pipe of the filling machine, some powder overflows from the container in the form of dust, which not only affects the cleanliness of the packaging container and the working environment, but also reduces the accuracy of powder metering and causes a certain amount of powder waste.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a powder filling machine, including a filling device, the output end of which is connected to a feeding pipe, an extension tube is slidably sleeved on the outer surface of the feeding pipe, the filling device is provided with a release and retraction mechanism, the release and retraction mechanism can drive the extension tube to first insert into the packaging container, and then slowly lift it to feed the powder, a filter cloth disc is slidably sleeved on the extension tube, and an elastic telescopic component is also provided on the extension tube, the elastic telescopic component can press the filter cloth disc tightly at the port of the packaging container during the filling process.

[0006] Preferably, the extending and retracting mechanism includes a swivel support rod, a sector gear rotatably connected to the bottom of the swivel support rod, a straight groove handle fixedly connected to the sector gear, a support plate fixedly installed on the swivel support rod, a telescopic cylinder provided on the support plate, a shaft hoop connected to the telescopic end of the telescopic cylinder, a sliding shaft fixedly connected to the bottom of the shaft hoop, the sliding shaft being slidably connected along the inner side of the straight groove handle, and a straight rack provided on the outer side of the top of the extension tube, with the sector gear meshing with the straight rack.

[0007] Preferably, a limiting plate is fixedly connected to the top outer side of the extension tube, and the sector gear slides against the inner side of the limiting plate.

[0008] Preferably, the elastic telescopic component includes a hoop frame, which is fixedly fitted in the middle of the outer side of the extension tube. Symmetrical limiting rods are vertically slidably inserted into the hoop frame. The bottom end of the limiting rod is fixedly connected to the filter cloth disc, and a spring is fitted on the limiting rod.

[0009] Preferably, the interception part of the filter cloth disc is made of polyester fiber material, and the mesh count of the filter cloth disc is -mesh.

[0010] Preferably, the filter cloth disc is provided with a cleaning mechanism, the cleaning mechanism including a ring frame, the ring frame being concentrically rotatably connected to the filter cloth disc, a gear ring being fixedly provided on the outer side of the ring frame, a drive motor being fixedly installed on the filter cloth disc, a spur gear being provided at the output end of the drive motor, the gear ring meshing with the spur gear, and a pressure roller being rotatably connected to the inner side of the ring frame, the outer surface of the pressure roller being evenly distributed with bristles.

[0011] Preferably, it also includes a filling platform, which is located below the filling device. A suspension frame is fixedly installed on one side of the filling platform, the filling device is located on the top of the suspension frame, and support legs are provided at the four corners of the bottom of the filling platform.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention uses a release and retraction mechanism to insert an extension tube into the bottom of the inner cavity of the packaging container. The filter cloth disc is pressed against the port of the packaging container by the elastic force of the elastic telescopic component. Then, the filling machine is started to put the powder into the packaging container through the extension tube. At the same time, the release and retraction mechanism is used to gradually raise the extension tube as the powder increases in the container until the extension tube is pulled out of the container, completing the filling. The extension tube serves as a delivery pipe, allowing the powder to fall directly into the container. The filter cloth disc intercepts the powder at the container port, preventing dust from spilling out due to friction with the bottle mouth or air disturbance during the fall. This ensures the cleanliness of the container and the working environment, as well as the accuracy of quantitative filling.

[0014] This invention uses a drive motor to drive a spur gear to rotate. The spur gear meshes with a gear ring, which in turn drives a pressure roller to rotate and roll along the surface of the filter cloth disc. The pressure roller and brush bristles squeeze the filter cloth disc, which can clean and remove the powder that is clogging the holes in the filter cloth disc. This prevents the filter cloth disc from clogging and affecting the air discharge in the container during the next processing. At the same time, it can also prevent the filter cloth disc from carrying away some powder dust, which would lead to inaccurate powder dispensing. This improves the filling accuracy to a certain extent. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the retraction mechanism and elastic telescopic component of this utility model.

[0017] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure of region A in the middle.

[0018] [Figure Labels]

[0019] 1. Filling device; 2. Feeding pipe; 3. Extension pipe; 4. Retracting mechanism; 41. Spinning rod; 42. Sector gear; 43. Straight groove handle; 44. Support plate; 45. Telescopic cylinder; 46. Shaft clamp; 47. Sliding shaft; 48. Straight rack; 49. Limiting plate; 5. Elastic telescopic component; 51. Hoop frame; 52. Limiting rod; 53. Spring; 6. Filter cloth disc; 7. Cleaning mechanism; 71. Ring frame; 72. Gear ring; 73. Drive motor; 74. Spur gear; 75. Pressure roller; 76. Brush; 8. Filling table; 9. Suspension frame; 10. Support leg. Detailed Implementation

[0020] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0021] As attached Figure 1 To be continued Figure 3 An embodiment of this utility model provides a powder filling machine, including a filling device 1. The output end of the filling device 1 is connected to a feeding pipe 2. An extension pipe 3 is slidably sleeved on the outer surface of the feeding pipe 2. The filling device 1 is provided with a release and retraction mechanism 4. The release and retraction mechanism 4 can drive the extension pipe 3 to first insert into the packaging container and then slowly lift it to feed the powder. A filter cloth disc 6 is slidably sleeved on the extension pipe 3. An elastic telescopic member 5 is also provided on the extension pipe 3. The elastic telescopic member 5 can press the filter cloth disc 6 tightly at the port of the packaging container during the filling process.

[0022] Among them, the filling device 1 is existing technology, which can realize quantitative filling of powder. The specific principle will not be elaborated here. The filter cloth disc 6 can intercept dust without affecting the exhaust of air inside the container.

[0023] Preferably, the retraction mechanism 4 includes a swivel support rod 41, with a sector gear 42 rotatably connected to the bottom of the swivel support rod 41. A straight groove handle 43 is fixedly connected to the sector gear 42. A support plate 44 is fixedly installed on the swivel support rod 41. A telescopic cylinder 45 is provided on the support plate 44. A shaft clamp 46 is connected to the telescopic end of the telescopic cylinder 45. A sliding shaft 47 is fixedly connected to the bottom of the shaft clamp 46. The sliding shaft 47 can slide along the inner side of the straight groove handle 43. A rack 48 is provided on the outer side of the top of the extension tube 3. The sector gear 42 meshes with the rack 48. When the telescopic cylinder 45 retracts, the telescopic end of the telescopic cylinder 45 drives the shaft clamp 46 and the sliding shaft 47 to rise vertically synchronously. The sliding shaft 47 slides adaptively within the straight groove handle 43. At this time, the sector gear 42 meshes with the rack 48, allowing the extension tube 3 to slide down the feeding tube 2 and be inserted into the packaging container. Conversely, the extension tube 3 can be retracted in the same way.

[0024] Preferably, a limiting plate 49 is fixedly connected to the top outer side of the extension tube 3, and the sector gear 42 slides against the inner side of the limiting plate 49. The limiting plate 49 limits the extension tube 3 to ensure the stability of the vertical lifting of the extension tube 3.

[0025] Preferably, the elastic telescopic component 5 includes a hoop frame 51, which is fixedly fitted in the middle of the outer side of the extension tube 3. A symmetrical limiting rod 52 is vertically slidably inserted into the hoop frame 51. The bottom end of the limiting rod 52 is fixedly connected to the filter cloth disc 6. A spring 53 is fitted on the limiting rod 52. The filter cloth disc 6 can move vertically up and down along the surface of the extension tube 3 by being limited by the limiting rod 52. The elastic force of the spring 53 can be used to press the filter cloth disc 6 tightly against the port of the packaging container during the filling process to prevent dust from overflowing.

[0026] Preferably, the interception part of the filter cloth disc 6 is made of polyester fiber material, which has good antistatic and wear-resistant effects. The mesh size of the filter cloth disc 6 is 200-300 mesh. For the average particle size of probiotic powder, the powder particle size is usually 50-100μm. Therefore, the filter cloth disc 6 can effectively intercept probiotics in the packaging container.

[0027] Preferably, it also includes a filling platform 8, which is located below the filling device 1. A suspension frame 9 is fixedly installed on one side of the filling platform 8, the filling device 1 is located on the top of the suspension frame 9, and support legs 10 are provided at the four corners of the bottom of the filling platform 8.

[0028] Specifically, during use, align the port of the packaging container with the feeding tube 2, insert the extension tube 3 into the bottom of the inner cavity of the packaging container through the release and retraction mechanism 4, and press the filter cloth disc 6 against the port of the packaging container by the elastic force of the elastic telescopic member 5. Then, start the filling machine 1 to put the powder into the packaging container through the extension tube 3. At the same time, use the release and retraction mechanism 4 to gradually raise the extension tube 3 as the powder increases in the container until the extension tube 3 is pulled out of the container to complete the filling. The extension tube 3 serves as the feeding pipe, allowing the powder to fall directly into the container. The filter cloth disc 6 intercepts the powder at the container port to prevent dust from spilling out due to friction with the bottle mouth or air disturbance during the fall.

[0029] Furthermore, a cleaning mechanism 7 is provided on the filter cloth disc 6. The cleaning mechanism 7 includes a ring frame 71, which is concentrically rotatably connected to the filter cloth disc 6. A gear ring 72 is fixedly provided on the outer side of the ring frame 71. A drive motor 73 is fixedly installed on the filter cloth disc 6. A spur gear 74 is provided at the output end of the drive motor 73. The gear ring 72 meshes with the spur gear 74. A pressure roller 75 is rotatably connected to the inner side of the ring frame 71. Brush bristles 76 are evenly distributed on the outer surface of the pressure roller 75.

[0030] Specifically, each time the filling is completed and the filter cloth disc 6 is removed from the container, the drive motor 73 drives the spur gear 74 to rotate. The spur gear 74 meshes with the gear ring 72, which drives the pressure roller 75 to rotate and roll along the surface of the filter cloth disc 6. The pressure roller 75 and the bristles 76 squeeze the filter cloth disc 6, which can clean and remove the powder that is blocking the holes in the filter cloth disc 6.

[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A powder filling machine, comprising a filling device (1), wherein the output end of the filling device (1) is connected to a feeding pipe (2), characterized in that, The outer surface of the feeding tube (2) is slidably fitted with an extension tube (3). The filling device (1) is provided with a release and retraction mechanism (4). The release and retraction mechanism (4) can drive the extension tube (3) to first insert into the packaging container and then slowly lift it to feed the powder. The extension tube (3) is slidably fitted with a filter cloth disc (6). The extension tube (3) is also provided with an elastic telescopic component (5). The elastic telescopic component (5) can press the filter cloth disc (6) tightly at the port of the packaging container during the filling process.

2. The powder filling machine according to claim 1, characterized in that, The retraction mechanism (4) includes a swivel support rod (41), a sector gear (42) is rotatably connected to the bottom of the swivel support rod (41), a straight groove handle (43) is fixedly connected to the sector gear (42), a support plate (44) is fixedly installed on the swivel support rod (41), a telescopic cylinder (45) is provided on the support plate (44), a shaft hoop (46) is connected to the telescopic end of the telescopic cylinder (45), a sliding shaft (47) is fixedly connected to the bottom of the shaft hoop (46), the sliding shaft (47) can slide along the inner side of the straight groove handle (43), a straight rack (48) is provided on the outer side of the top of the extension tube (3), and the sector gear (42) meshes with the straight rack (48).

3. The powder filling machine according to claim 2, characterized in that, A limiting plate (49) is also fixedly connected to the top outer side of the extension tube (3), and the sector gear (42) slides against the inner side of the limiting plate (49).

4. The powder filling machine according to claim 1, characterized in that, The elastic telescopic component (5) includes a hoop frame (51), which is fixedly fitted in the middle of the outer side of the extension tube (3). A symmetrical limiting rod (52) is vertically slidably inserted on the hoop frame (51). The bottom end of the limiting rod (52) is fixedly connected to the filter cloth disc (6). A spring (53) is fitted on the limiting rod (52).

5. The powder filling machine according to claim 1, characterized in that, The interception part of the filter cloth disc (6) is made of polyester fiber material, and the mesh number of the filter cloth disc (6) is 200-300 mesh.

6. The powder filling machine according to claim 1, characterized in that, A cleaning mechanism (7) is provided on the filter cloth disc (6). The cleaning mechanism (7) includes a ring frame (71), which is concentrically rotatably connected to the filter cloth disc (6). A gear ring (72) is fixedly provided on the outer side of the ring frame (71). A drive motor (73) is fixedly installed on the filter cloth disc (6). A spur gear (74) is provided at the output end of the drive motor (73). The gear ring (72) meshes with the spur gear (74). A pressure roller (75) is rotatably connected to the inner side of the ring frame (71). Brush bristles (76) are evenly distributed on the outer surface of the pressure roller (75).

7. The powder filling machine according to claim 1, characterized in that, It also includes a filling station (8), which is located below the filling device (1). A suspension frame (9) is fixedly installed on one side of the filling station (8), and the filling device (1) is located on the top of the suspension frame (9). Support legs (10) are provided at the four corners of the bottom of the filling station (8).