Extruder for preparing ointment

By introducing automated cleaning and dispensing components into the extruder for ointment preparation, the difficulties in cleaning and dispensing have been solved, improving production efficiency and equipment cleanliness, and meeting the diverse needs of the market.

CN224168264UActive Publication Date: 2026-04-28乐普药业科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
乐普药业科技有限公司
Filing Date
2025-05-07
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing ointment extruders are difficult and time-consuming to clean, resulting in low production efficiency and difficulty in meeting market demand.

Method used

A cleaning assembly comprising a cast iron pipe and a pressure nozzle, combined with a drive belt and a sensing module, was designed to achieve automated cleaning; and a metering assembly to achieve metered extrusion via an electric push rod and a slide plate.

Benefits of technology

It reduces cleaning time, improves production efficiency, ensures equipment cleanliness and production continuity, and meets diverse production needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of ointment extrusion, and discloses an extruder for ointment preparation, which comprises an extruder main body, the outer wall of the extruder main body is fixedly connected with a fixing frame, the fixing frame is provided with a cleaning assembly, the cleaning assembly comprises a cast iron pipe, the bottom of the cast iron pipe is connected inside a cover plate in a sliding manner, and the cover plate is fixedly connected with the outer wall of the extruder main body. A pressure type spray head is fixedly connected to the bottom of the cast iron pipe, iron frames are fixedly connected to the two sides of the cast iron pipe, fixing blocks are fixedly connected to the bottoms of the iron frames on the two sides, transmission belts are fixedly connected to the inner walls of the fixing blocks on the two sides, and sensing modules are fixedly connected to the upper outer walls and the lower outer walls of the fixing frames on the two sides. After the fixed block reaches the sensing module, the transmission belt rotates reversely for repeated cleaning, the transmission belt drives the iron stand to drive the cast iron pipe to move, the bottom of the cast iron pipe is fixedly connected with the spray head, and after the spray head reaches the sensing module, the transmission belt moves reversely, so that the problem that a large amount of time needs to be consumed during manual cleaning is solved; the working efficiency of the machine is influenced.
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Description

Technical Field

[0001] This utility model relates to the field of ointment extrusion technology, and in particular to an extruder for ointment preparation. Background Technology

[0002] In the pharmaceutical industry, the preparation of ointment products is crucial, and the extruder, as the core equipment in ointment preparation, directly affects product quality and production efficiency. With the increasing market demand for ointment products, extruders are required not only to produce stably and efficiently but also to meet diverse formulation and specification requirements. Simultaneously, for hygiene and compliance reasons, the ease of cleaning the equipment has become a key indicator. For example, in the pharmaceutical field, cross-contamination between different batches of ointment production must be strictly avoided, which places extremely high demands on the cleaning effectiveness and speed of the extruder.

[0003] Existing extruders for ointment preparation typically consist of a raw material conveying system, a mixing and agitation system, and an extrusion molding system. The raw material conveying system usually relies on pressure generated by a pump to transport the flowing raw material to the mixing and agitation zone. In the mixing and agitation system, the high-speed rotating impellers, through shearing and convection, mix the raw material between different flow layers, achieving a uniform distribution of components. The extrusion molding system utilizes the thrust generated by the rotating screw within the barrel to propel the uniformly mixed ointment raw material through a specific die, thereby extruding it into a product shape that meets specifications.

[0004] Current technologies for equipment cleaning are severely inadequate. Currently, extruder cleaning relies primarily on manual operation. Workers must use various cleaning tools to meticulously clean the complex pipes, cavities, and agitator blades inside the extruder. Due to the complex internal structure of the extruder, with numerous narrow pipes, winding corners, and irregular contact surfaces, manual cleaning is extremely difficult. Even experienced workers require a significant amount of time, during which the equipment is completely unusable. Frequent and time-consuming manual cleaning not only substantially increases labor costs for enterprises but also greatly reduces the actual production time of the equipment, resulting in low production efficiency and difficulty in meeting ever-increasing market demand. Therefore, this paper proposes an extruder for ointment preparation to address these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an extruder for ointment preparation, which aims to improve the problem of difficult cleaning of the inner wall of the extruder in the prior art, which requires a lot of time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An extruder for ointment preparation includes a cover plate, characterized in that: an extruder body is disposed at the bottom of the cover plate, a discharge pipe is fixedly connected to the bottom of the extruder body, a metering component is disposed at the bottom of the discharge pipe, a fixing frame is fixedly connected to the outer wall of the extruder body, and a cleaning component is disposed on the outer wall of the fixing frame;

[0008] The cleaning assembly includes a cast iron pipe, an input component is provided on the outer wall of the cast iron pipe, the bottom of the cast iron pipe is slidably connected to the inside of the cover plate, a pressure nozzle is fixedly connected to the bottom of the cast iron pipe, iron frames are fixedly connected to both sides of the cast iron pipe, a fixing block is fixedly connected to the bottom of both sides of the iron frames, a transmission belt is fixedly connected to the inner wall of both sides of the fixing block, the transmission belts on both sides are rotatably connected to the outer wall of the fixing frame, and a sensing module is fixedly connected to the upper and lower outer walls of both sides of the fixing frame;

[0009] As a further description of the above technical solution:

[0010] The input component includes a water tank, a water pump is installed at the bottom of the water tank, the water pump input end is connected to the outer wall of the water tank, the water pump output end is connected to a water pipe, and the other end of the water pipe is fixedly connected to the middle of the cast iron pipe.

[0011] As a further description of the above technical solution:

[0012] The quantitative component includes a positioning slider, a positioning block is fixedly connected to the bottom of the positioning slider, and an electric push rod is fixedly connected to the side wall of the positioning block;

[0013] As a further description of the above technical solution:

[0014] The output end of the electric push rod is fixedly connected to a push plate, and the top of the push plate is fixedly connected to a sliding plate.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the slide plate is slidably connected to the inner wall of the positioning slider, and a measuring cup is fixedly connected to the bottom of the slide plate;

[0017] As a further description of the above technical solution:

[0018] A stop block is fixedly connected to the bottom of the positioning slider, and a baffle is fixedly connected to the inner wall of the positioning slider;

[0019] As a further description of the above technical solution:

[0020] A connecting block is fixedly connected to the inner wall of the positioning slider, and the top of the connecting block is fixedly connected to the bottom of the discharge pipe;

[0021] As a further description of the above technical solution:

[0022] A connecting plate is fixedly connected to one side of the positioning slider, and a scraper is fixedly connected to the bottom of the connecting plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, when cleaning the extruder body, the water pump switch is turned on, and the water flows into the water pipe through the water tank, then into the cast iron pipe, and then into the pressure nozzle for cleaning. Then the transmission belt is turned on, and the transmission belt drives the fixed block to move up and down. Then the fixed block drives the cast iron pipe to repeatedly rinse the inside of the extruder body, so as to solve the problem that manual cleaning requires a lot of time, reduce downtime, and speed up work efficiency.

[0025] 2. In this utility model, when the ointment is extruded in a quantitative manner, the electric push rod performs a telescopic movement. Subsequently, the telescopic rod drives the slide plate and the quantitative cup. The quantitative cup baffle and the positioning block limit the push plate stroke, so that the quantitative cup reaches the predetermined position. This solves the problem that the extruder cannot perform quantitative extrusion each time, saves time and costs, and speeds up the working efficiency of the extruder. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an extruder for preparing ointment according to the present invention;

[0027] Figure 2 This is a schematic diagram of the drive belt of an extruder for ointment preparation according to the present invention;

[0028] Figure 3 This is a schematic diagram of the positioning slider of an extruder for ointment preparation according to the present invention;

[0029] Figure 4 This is a schematic diagram of the top structure of the positioning slider of an extruder for ointment preparation according to the present invention.

[0030] Legend:

[0031] 1. Water tank; 2. Water pipe; 3. Extruder body; 4. Discharge pipe; 5. Cast iron pipe; 6. Iron frame; 7. Pressure nozzle; 8. Cover plate; 9. Sensing module; 10. Fixing block; 11. Fixing frame; 12. Transmission belt; 13. Positioning slider; 14. Positioning block; 15. Electric push rod; 16. Baffle; 17. Push plate; 18. Connecting plate; 19. Scraper; 20. Metering cup; 21. Slide plate; 22. Stop block; 23. Connecting block; 24. Water pump. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1-2 An embodiment of this utility model is provided: an extruder for ointment preparation, including a cover plate 8, an extruder body 3 is provided at the bottom of the cover plate 8, a discharge pipe 4 is fixedly connected to the bottom of the extruder body 3, a metering component is provided at the bottom of the discharge pipe 4, a fixing frame 11 is fixedly connected to the outer wall of the extruder body 3, and a cleaning component is provided on the outer wall of the fixing frame 11.

[0034] The cleaning assembly includes a cast iron pipe 5, with an input component installed on the outer wall of the cast iron pipe 5. The bottom of the cast iron pipe 5 is slidably connected to the inside of a cover plate 8. A pressure nozzle 7 is fixedly connected to the bottom of the cast iron pipe 5. Iron frames 6 are fixedly connected to both sides of the cast iron pipe 5. Fixing blocks 10 are fixedly connected to the bottom of both iron frames 6. A transmission belt 12 is fixedly connected to the inner wall of both fixing blocks 10. The two transmission belts 12 are rotatably connected to the outer wall of a fixing frame 11. Sensing modules 9 are fixedly connected to the upper and lower outer walls of both fixing frames 11.

[0035] The input component includes a water tank 1, a water pump 24 is provided at the bottom of the water tank 1, the input end of the water pump 24 is connected to the outer wall of the water tank 1, the output end of the water pump 24 is connected to a water pipe 2, and the other end of the water pipe 2 is fixedly connected to the middle of the cast iron pipe 5.

[0036] Specifically, during the cleaning process, the cover plate 8 is made of high-strength stainless steel and is securely connected to the extruder body 3 at the bottom via a snap-fit, providing stable protection for the body. The extruder body 3 is cast from high-quality alloy steel with a precise internal structure, effectively handling ointment raw materials. The discharge pipe 4 at the bottom of the body is made of ceramic with a smooth inner wall, facilitating the smooth flow of ointment. The fixing frame 11 on the outer wall of the extruder body 3 is made of aluminum alloy, which is lightweight and high-strength, providing stable support for the cleaning components. The core of the cleaning components, the cast iron pipe 5, is made of wear-resistant cast iron, and the input component on the outer wall can introduce water into the pipe. In the input component, the water tank 1 is made of food-grade plastic and is connected to the inlet and outlet of the water pump 24 at the bottom. The output of the water pump is connected to the rubber water pipe 2, and the other end of the water pipe 2 is sealed and connected to the middle of the cast iron pipe 5. The bottom of the cast iron pipe 5 is connected to the cover plate 8 by a sliding seal and is equipped with a pressure nozzle 7, which is made of a special alloy and can spray water evenly under high pressure. The iron frames 6 on both sides of the cast iron pipe 5 are made of carbon steel, and the fixing blocks 10 at the bottom are also made of carbon steel. The inner wall of the fixing blocks 10 is connected to the groove of the rubber transmission belt 12. The transmission belt 12 rotates on the outer wall of the fixing frame 11. The sensing modules 9 on the upper and lower outer walls of the fixing frame 11 use photoelectric sensor technology, which can accurately sense and control the movement of the cast iron pipe 5, thereby improving the cleaning effect and efficiency.

[0037] Reference Figures 1-4 The quantitative component includes a positioning slider 13, a positioning block 14 fixedly connected to the bottom of the positioning slider 13, an electric push rod 15 fixedly connected to the side wall of the positioning block 14, a push plate 17 fixedly connected to the output end of the electric push rod 15, a slide plate 21 fixedly connected to the top of the push plate 17, a slide plate 21 slidably connected to the outer wall of the slide plate 21 on the inner wall of the positioning slider 13, a quantitative cup 20 fixedly connected to the bottom of the slide plate 21, a stop block 22 fixedly connected to the bottom of the positioning slider 13, a baffle 16 fixedly connected to the inner wall of the positioning slider 13, a connecting block 23 fixedly connected to the inner wall of the positioning slider 13, a connecting block 23 fixedly connected to the bottom of the discharge pipe 4 at the top, a connecting plate 18 fixedly connected to one side of the positioning slider 13, and a scraper 19 fixedly connected to the bottom of the connecting plate 18.

[0038] Specifically, the dispensing component is used to control the amount of ointment dispensed. It includes a positioning slider 13, made of aluminum alloy with a smooth inner wall to facilitate the sliding of the slide plate 21. A positioning block 14 at the bottom of the positioning slider 13 is made of stainless steel and is fixed with bolts; an electric push rod 15 is welded to its side wall. The output end of the electric push rod 15 is threadedly connected to a push plate 17. A slide plate 21 is welded to the top of the push plate 17, and a dispensing cup 20 is bolted to the bottom of the slide plate 21. The dispensing cup 20 is made of transparent plastic for easy observation. The bottom of the positioning slider 13 has a rubber stop block 22, and the inner wall has a stainless steel baffle 16 for limiting movement. The connecting block 23 connects the discharge pipe 4 and the positioning slider 13. One side of the connecting plate 18 is fixed to the positioning slider 13, and the bottom is fixedly connected to the stainless steel scraper 19. The scraper 19 allows the ointment to remain inside the metering cup 20. The pusher plate 17 is pushed by the electric push rod, which drives the slide plate 21. The slide plate 21 drives the metering cup 20 fixed below to move out of the scraper 19, and the ointment slides out from inside the metering cup 20, thus completing the metering extrusion.

[0039] Working principle: After the extrusion work is completed, when the extruder body 2 needs to be cleaned, the water pump 24 is turned on. Water flows through the water tank 1 into the water pipe 3, then through the water pipe 3 into the cast iron pipe 5, and then through the cast iron pipe 5 into the pressure nozzle 7 for cleaning. Then, the transmission belt 12 is turned on to drive the movement of the fixed block 10. The fixed block 10 is equipped with sensing modules 9 at both ends. When the fixed block 10 touches the sensing modules 9 on both sides, the transmission belt 12 rotates in the opposite direction to achieve the purpose of repeated cleaning. Then, the fixed block 10 drives the iron frame 6, then the iron frame 6 drives the cast iron pipe 5, and then the cast iron pipe 5 drives the pressure nozzle 7, which repeatedly rinses the inner wall of the extruder body 1.

[0040] During extrusion, the ointment is first placed into the extruder body 2 through the cover plate 8. Then, when the ointment is squeezed into the metering cup 20 through the discharge pipe 4, the electric push rod 15 moves forward to move the push plate 17. The push plate 17 then drives the slide plate 21, which in turn drives the metering cup 20. The slide plate 21 slides on the inner wall of the positioning slider 13. The stop block 22 then limits the push plate 17. Finally, the metering cup 20 moves out to release the scraper 19 to complete the metered extrusion. When the electric push rod 15 drives the push plate 17 to return to its original position, the baffle 16 limits the push plate 17 to ensure that the metering cup 20 moves directly below the discharge pipe 4, thus solving the metering problem for each portion and improving production efficiency.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An extruder for preparing ointments, comprising a cover plate (8), characterized in that: The bottom of the cover plate (8) is provided with an extruder body (3), the bottom of the extruder body (3) is fixedly connected with a discharge pipe (4), the bottom of the discharge pipe (4) is provided with a metering component, the outer wall of the extruder body (3) is fixedly connected with a fixing frame (11), and the outer wall of the fixing frame (11) is provided with a cleaning component. The cleaning assembly includes a cast iron pipe (5), an input component is provided on the outer wall of the cast iron pipe (5), the bottom of the cast iron pipe (5) is slidably connected to the inside of the cover plate (8), a pressure nozzle (7) is fixedly connected to the bottom of the cast iron pipe (5), iron frames (6) are fixedly connected to both sides of the cast iron pipe (5), a fixing block (10) is fixedly connected to the bottom of both sides of the iron frames (6), a transmission belt (12) is fixedly connected to the inner wall of both sides of the fixing blocks (10), the transmission belts (12) are rotatably connected to the outer wall of the fixing frame (11), and a sensing module (9) is fixedly connected to the upper and lower outer walls of both sides of the fixing frame (11).

2. The extruder for preparing ointments according to claim 1, characterized in that: The input component includes a water tank (1), a water pump (24) is provided at the bottom of the water tank (1), the input end of the water pump (24) is connected to the outer wall of the water tank (1), the output end of the water pump (24) is connected to a water pipe (2), and the other end of the water pipe (2) is fixedly connected to the middle of the cast iron pipe (5).

3. The extruder for preparing ointments according to claim 1, characterized in that: The quantitative component includes a positioning slider (13), a positioning block (14) is fixedly connected to the bottom of the positioning slider (13), and an electric push rod (15) is fixedly connected to the side wall of the positioning block (14).

4. The extruder for preparing ointments according to claim 3, characterized in that: The output end of the electric push rod (15) is fixedly connected to a push plate (17), and the top of the push plate (17) is fixedly connected to a slide plate (21).

5. An extruder for preparing ointments according to claim 4, characterized in that: The outer wall of the slide plate (21) is slidably connected to the inner wall of the positioning slider (13), and a metering cup (20) is fixedly connected to the bottom of the slide plate (21).

6. An extruder for preparing ointments according to claim 5, characterized in that: The bottom of the positioning slider (13) is fixedly connected to a stop block (22), and the inner wall of the positioning slider (13) is fixedly connected to a baffle (16).

7. An extruder for preparing ointments according to claim 6, characterized in that: The inner wall of the positioning slider (13) is fixedly connected to a connecting block (23), and the top of the connecting block (23) is fixedly connected to the bottom of the discharge pipe (4).

8. An extruder for preparing ointments according to claim 7, characterized in that: A connecting plate (18) is fixedly connected to one side of the positioning slider (13), and a scraper (19) is fixedly connected to the bottom of the connecting plate (18).