Discharge port filling head of ointment packaging machine
By designing a servo motor-driven rotating shaft and symmetrical spiral augers with opposite rotation directions at the discharge port of the ointment packaging machine, the problem of residue in the filling head of high-viscosity ointments is solved, achieving an efficient and hygienic filling process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN DONGJI HEALTH MANAGEMENT CONSULTING CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-17
AI Technical Summary
In existing technologies, high-viscosity ointments are prone to leaving residues at the filling head outlet during the filling process, resulting in low filling efficiency and unsanitary conditions.
A filling head for the discharge port of a medicated ointment packaging machine was designed. It adopts a rotating shaft driven by a servo motor and symmetrical spiral augers with opposite rotation directions. The forward and reverse rotations realize quantitative filling of medicated ointment and backflow of residue, thus avoiding adhesion.
It achieves flow interruption during ointment filling, reduces residue at the outlet, improves filling efficiency, and ensures hygiene requirements.
Smart Images

Figure CN224131371U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of decoction filling technology, and in particular to a filling head for the discharge port of a medicated ointment packaging machine. Background Technology
[0002] After being decocted, traditional Chinese medicine herbs form a soup. The viscosity of this soup varies depending on the processing techniques and requirements. When the viscosity is low, filling machines typically use various valves to cut off the flow and achieve quantitative filling. Examples include a quantitative feeding food packaging machine disclosed in patent document CN217836104U, a quantitative filling head disclosed in CN209242643U, and liquid filling machines. These filling heads rarely experience sticking, meeting hygiene requirements. However, when the viscosity is high, the shortcomings of these valve-operated filling heads become apparent: although existing technologies can increase the fluidity of the ointment by raising the temperature, the viscosity remains high even at high temperatures. This results in a large amount of drug residue remaining at the outlet after the valve cuts off the flow, significantly impacting filling efficiency and causing hygiene issues.
[0003] To solve the above problems, a filling head for the discharge port of a medicated ointment packaging machine is provided. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model provides a filling head for the outlet of a medicated ointment packaging machine, which effectively solves the problem that the medicated ointment is prone to sticking and contaminating at the outlet of the packaging machine after the filling head stops flowing.
[0005] The technical solution includes a connecting cylinder connected to the discharge port of the filling machine. Below the connecting cylinder is a horizontal cylindrical shell with a rotating shaft inside. Two symmetrical spiral augers with opposite rotation directions are fixed on the rotating shaft. A medicine outlet is opened at the lower middle part of the cylindrical shell. There are vertical cylinders on the upper sides of both the left and right ends of the cylindrical shell, and the upper ends of the vertical cylinders are connected to the connecting cylinder.
[0006] Furthermore, the upper end of the vertical cylinder is shaped like a trumpet with its opening facing upwards.
[0007] Furthermore, a servo motor is connected to the end of the rotating shaft, and the servo motor is fixed to the outer side of the right end of the cylindrical shell.
[0008] This invention has a clever structure that enables flow interruption during the filling process, while reducing residue at the filling head outlet, greatly improving filling efficiency and meeting hygiene requirements. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the overall design of this utility model.
[0010] Figure 2This is the front sectional view of the present invention.
[0011] Figure 3 This is the front sectional view of the present invention.
[0012] Figure 4 This is a schematic diagram of the specific structure of the rotating shaft and the two spiral auger sections on it in this utility model. Detailed Implementation
[0013] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0014] Depend on Figures 1 to 4 The present invention includes a connecting cylinder 1, which is connected to the discharge port of the filling machine. Below the connecting cylinder 1 is a horizontal cylindrical shell 2. Inside the cylindrical shell 2 is a rotating shaft 3 that can rotate actively. Two symmetrical spiral augers 4 with opposite rotation directions are fixed on the rotating shaft 3. A medicine outlet 5 is opened at the lower middle part of the cylindrical shell 2. There are vertical cylinders 6 on the upper sides of both the left and right ends of the cylindrical shell 2. The upper ends of the vertical cylinders 6 are connected to the connecting cylinder 1.
[0015] To facilitate the entry of the ointment into the vertical cylinder 6, the upper end of the vertical cylinder 6 is shaped like a trumpet with the opening facing upwards.
[0016] The end of the rotating shaft 3 is connected to a servo motor 7, which is fixed to the outer side of the right end of the cylindrical shell 2.
[0017] It is worth noting that at the junction of the two spiral augers 4, when the shaft 3 rotates clockwise, the two spiral augers 4 transport the ointment in the vertical cylinder 6 towards the center, and finally it flows out from the outlet 5; when the shaft 3 rotates counterclockwise, the two spiral augers 4 transport the ointment in the cylindrical shell 2 to both sides, and the excess ointment returns to the vertical cylinder 6.
[0018] In use, the connecting cylinder 1 is installed at the discharge port of the filling machine. When the ointment in the filling machine enters the connecting cylinder 1, it then passes through the vertical cylinder 6 into the cylindrical shell 2. The servo motor 7 is started to rotate forward, driving the rotating shaft 3 to rotate. The rotating shaft 3 drives the two spiral augers 4 to rotate, causing the ointment in the two vertical cylinders 6 to move towards the center and finally flow out from the discharge port 5, thus completing the filling. After filling a specific amount, the servo motor 7 reverses. At this time, the two spiral augers 4 transport the ointment in the cylindrical shell 2 to both sides, and the ointment returns to the vertical cylinder 6. At the same time, because the ointment has a certain viscosity, during the reverse rotation of the spiral augers 4, the medicine at the discharge port 5 is pulled upward by the medicine in the cylindrical cylinder, ensuring that the medicine at the discharge port does not overflow or drip. As can be seen from the above, the discharge port 5 should be as short as possible. Only with a shorter discharge port 5 can the medicine be prevented from contaminating and hygiene guaranteed.
[0019] This invention has a clever structure that enables flow interruption during the filling process, while reducing residue at the filling head outlet, greatly improving filling efficiency and meeting hygiene requirements.
Claims
1. A pharmaceutical ointment packaging machine outfeed filling head, characterized in that, It includes a connecting cylinder (1), which is connected to the discharge port of the filling machine. Below the connecting cylinder (1) is a horizontal cylindrical shell (2), and inside the cylindrical shell (2) is a rotating shaft (3) that can rotate actively. Two symmetrical spiral augers (4) with opposite rotation directions are fixed on the rotating shaft (3). A medicine outlet (5) is opened at the lower end of the middle part of the cylindrical shell (2). There are vertical cylinders (6) on the upper sides of both the left and right ends of the cylindrical shell (2). The upper end of the vertical cylinder (6) is connected to the connecting cylinder (1).
2. A filling head for a pharmaceutical ointment packaging machine according to claim 1, characterized in that, The upper end of the vertical tube (6) is shaped like a trumpet with the opening facing upwards.
3. The filling head for the outlet of a medicinal ointment packaging machine according to claim 1, characterized in that, The end of the rotating shaft (3) is connected to a servo motor (7), which is fixed on the outside of the right end of the cylindrical shell (2).
Citation Information
Patent Citations
Quantitative filling head and liquid filling machine
CN209242643U
Quantitative discharging food packaging machine
CN217836104U