Annular filling device
By designing the collection chamber, conical transition chamber, and discharge chamber of the annular filler, and incorporating guide rods within, the problem of powder sticking to the central column of the bottle cap was solved, achieving efficient and stable powder filling results.
Patent Information
- Application Number
- CN202520420938.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In existing technologies, powder tends to stick to the central column when it is filled into the bottle cap, resulting in a high scrap rate and unstable production efficiency and pass rate.
Design an annular filling device, including a collection chamber, a conical transition chamber, and a discharge chamber, with a guide rod inside. The guide rod connects to the central column of the bottle cap to ensure that the powder enters the annular hopper smoothly and avoids contact with the central column.
It improved the pass rate and production efficiency of powder filling, reduced the scrap rate, and ensured the stability of filling quality.
Smart Images

Figure CN223891240U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filling technology, and in particular to a ring-shaped filling device. Background Technology
[0002] In daily life, a type of two-piece packaging bottle is widely used in the food and cosmetics industries. The bottle body holds the liquid, while the cap holds the powder. When using the product, the consumer operates the cap to release the powder into the bottle to mix with the liquid. This packaging method enhances consumer engagement with the product while ensuring maximum freshness and shelf life of the liquid.
[0003] In the existing technology, the process of filling powder into the bottle cap has certain defects. The bottle cap usually has a hollow central column, an inner layer and an outer layer. When manually pouring powder into the bottle cap using a measuring spoon, the powder needs to be poured into the annular hopper between the hollow central column and the inner layer. The measuring spoon must be completely filled along the inner layer. If it deviates slightly, the powder will easily stick to the central column, resulting in waste. The waste rate is about 15%-20%, and the pass rate is unstable, depending on the individual worker's technique and habits.
[0004] Therefore, there is an urgent need for a filling machine that is simple in structure, easy to operate, and low in cost, which can effectively prevent powder from contaminating the center column of the bottle cap and improve production efficiency and product qualification rate. Utility Model Content
[0005] To overcome the shortcomings of existing technologies, a ring-shaped filling device is proposed to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0007] An annular filling device includes an annular filling device body, which includes a collection chamber, a conical transition chamber, and a discharge chamber. The lower end of the collection chamber is fixedly connected to the upper end of the conical transition chamber, and the lower end of the conical transition chamber is fixedly connected to the upper end of the discharge chamber. The cavities of the collection chamber, the conical transition chamber, and the discharge chamber are vertically connected to form a continuous channel. A guide rod is also provided in the inner cavity of the annular filling device body. The upper end of the guide rod is fixedly connected to the inner wall of the collection chamber, and the lower end of the guide rod extends into the discharge chamber.
[0008] As a further technical solution of this utility model: the diameter of the collecting chamber is larger than the diameter of the discharging chamber.
[0009] As a further technical solution of this utility model: a gap is provided between the lower end of the guide rod and the lower end face of the discharge chamber.
[0010] The beneficial effects of this utility model are:
[0011] This utility model's annular filling device includes a collection chamber, a conical transition chamber, and a discharge chamber. These chambers are interconnected vertically to form a continuous channel for powder flow and guidance. A guide rod is also provided within the annular filling device's inner cavity. The upper end of the guide rod is fixedly connected to the inner wall of the collection chamber, and the lower end extends into the discharge chamber. In use, the bottom of the discharge chamber is placed inside the inner layer of the bottle cap, abutting against the opening at the upper end of the hollow central column with the lower end of the guide rod. The powder enters the collection chamber, passes through the conical transition chamber and the discharge chamber, and falls into the annular hopper between the hollow central column and the inner layer. The connection between the guide rod and the hollow central column provides perfect protection during powder discharge, preventing contact between the powder and the hollow central column, allowing the powder to smoothly enter the annular hopper between the hollow central column and the inner layer. The hourly efficiency is 2900 units per person, with no quality risk after filling and a high pass rate. It can be used for material filling in the food, chemical, or pharmaceutical industries. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0013] Figure 2 This is a cross-sectional view of the main structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the main structure of the bottle cap of this utility model;
[0015] Figure 4 This is a schematic diagram of the structure of this utility model in practical use.
[0016] In the diagram: 1-ring-shaped filling device body, 11-collecting chamber, 12-conical transition chamber, 13-discharge chamber, 2-guide rod, 3-bottle cap, 31-outer layer, 32-inner layer, 33-hollow central column. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Example 1
[0019] Reference Figure 1-2An annular filling device is disclosed, which can be used for filling materials in the food, chemical, or pharmaceutical industries. It includes an annular filling device body 1, which comprises a collection chamber 11, a conical transition chamber 12, and a discharge chamber 13. The collection chamber 11 and the discharge chamber 13 are both hollow cylinders, and the conical transition chamber 12 is a hollow cone. The diameter of the collection chamber 11 is larger than the diameter of the discharge chamber 13. The diameters of the collection chamber 11, the conical transition chamber 12, and the discharge chamber 13 can be adjusted according to specific application requirements.
[0020] The lower end of the collecting chamber 11 is fixedly connected to the upper end of the conical transition chamber 12, and the lower end of the conical transition chamber 12 is fixedly connected to the upper end of the discharging chamber 13. The collecting chamber 11, the conical transition chamber 12, and the discharging chamber 13 are fixed by welding or integral molding. The cavities of the collecting chamber 11, the conical transition chamber 12, and the discharging chamber 13 are vertically connected to form a continuous channel for the flow or guidance of materials.
[0021] The annular filling device body 1 is also equipped with a guide rod 2 inside its cavity. The upper end of the guide rod 2 is fixedly connected to the inner wall of the collecting cavity 11, and the lower end of the guide rod 2 extends into the discharging cavity 13. The guide rod 2 is made of metal or high-strength plastic to ensure its structural strength and durability. A gap is provided between the lower end of the guide rod 2 and the lower end face of the discharging cavity 13, and the gap between the lower end of the guide rod 2 and the lower end face of the discharging cavity 13 can be adjusted as needed.
[0022] Reference Figure 3 The bottle cap 3 usually has a hollow central column 33 in the center. The inner layer 32 and the outer layer 33 are arranged on the outside of the hollow central column 33. In the actual filling process, the powder is poured into the annular hopper between the hollow central column 33 and the inner layer 32 by manual measuring spoon. If it deviates slightly, the powder will easily stick to the hollow central column 33. The upper part of the hollow central column 33 is open and hollow inside, and the powder can also easily fall into the inner cavity of the hollow central column 33, which will prevent the inner cavity of the hollow central column 33 from accommodating other mechanisms and result in waste.
[0023] Reference Figure 4 In use, the bottom of the discharge chamber 13 is placed into the inner layer 32 of the bottle cap 3, where it abuts against the opening at the upper end of the hollow central column 33 with the lower end of the guide rod 2. The powder enters the collection chamber 11, and falls into the annular hopper between the hollow central column 33 and the inner layer 32 through the conical transition chamber 12 and the discharge chamber 13. The connection between the guide rod 2 and the hollow central column 33 provides perfect protection during powder discharge, preventing the powder from contacting the hollow central column 33 and allowing the powder to smoothly enter the annular hopper between the hollow central column 33 and the inner layer 32. The hourly efficiency is 2900 / person, with no quality risk after filling and a high pass rate. It can be used for material filling in the food, chemical, or pharmaceutical industries.
[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A ring-shaped filling device, characterized in that: The device includes an annular filling device body (1), which includes a collection chamber (11), a conical transition chamber (12), and a discharge chamber (13). The lower end of the collection chamber (11) is fixedly connected to the upper end of the conical transition chamber (12), and the lower end of the conical transition chamber (12) is fixedly connected to the upper end of the discharge chamber (13). The cavities of the collection chamber (11), the conical transition chamber (12), and the discharge chamber (13) are connected vertically to form a continuous channel. The inner cavity of the annular filling device body (1) is also provided with a guide rod (2). The upper end of the guide rod (2) is fixedly connected to the inner wall of the collection chamber (11), and the lower end of the guide rod (2) extends into the discharge chamber (13).
2. The annular filling device according to claim 1, characterized in that: The diameter of the collecting chamber (11) is larger than the diameter of the discharging chamber (13).
3. The annular filling device according to claim 1, characterized in that: A gap is provided between the lower end of the guide rod (2) and the lower end face of the discharge chamber (13).