Cream filling device

The cream filling device, which uses alternating operation of dual storage hoppers and precision transmission via a lead screw piston, solves the problems of accuracy and stability in cream filling devices, achieving efficient and automated cream filling.

CN224131374UActive Publication Date: 2026-04-17ZHENGZHOU HAORUI PHARM TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU HAORUI PHARM TECH CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing cream filling equipment lacks high-precision feeding and has problems with material discharge interference, resulting in poor filling effect.

Method used

It adopts a dual-bin alternating working mode, combined with a structural design of precision transmission of lead screw and piston and servo motor drive. The servo motor drives the lead screw to rotate 180° to achieve continuous filling, the gear transmission structure realizes the precise lifting and lowering of the piston, and is equipped with a pressure relief valve to balance the air pressure and ensure filling accuracy.

Benefits of technology

It achieves high-precision, automated cream filling, has continuous filling capability, strong adaptability, reduces the impact of material residue and air bubbles, and improves production efficiency and filling stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224131374U_ABST
    Figure CN224131374U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of emulsion agent filling, in particular to an emulsion agent filling device which comprises a collecting tank, a storage bin, a lead screw and a second installation frame, fixing frames are arranged on the two sides of the collecting tank, the storage bin is inserted into the fixing frames, a retaining ring is arranged on the outer wall of the storage bin, and the second installation frame is fixed to the upper end of the retaining ring. A limiting ring is rotatably mounted in the middle of the second mounting frame, a first gear with an internal thread is fixed to the upper end of the limiting ring, a lead screw is inserted into the middle of the second mounting frame and is in threaded connection with the first gear, a piston is rotatably mounted at the lower end of the lead screw and is inserted into a storage bin, and a spray head is arranged at the lower end of the storage bin. According to the device, the function that high-precision latex filling is matched with back-and-forth switching of loading and unloading can be achieved through the lead screw, and the problems that an existing latex filling device lacks high-precision feeding and unloading and filling interference exists are solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of latex filling, and more particularly to a cream filling device. Background Technology

[0002] Latex preparations are semi-solid formulations made from natural or synthetic latex (such as polyvinyl acetate, acrylate, etc.) as a base, with added drugs, thickeners, preservatives, and other excipients. They are characterized by good film-forming properties, extensibility, and breathability, and are commonly used for topical skin applications (such as wound dressings and pain relief patches) or special drug delivery (such as condoms and medical catheter coatings). After drying, latex preparations form an elastic film that slowly releases the drug, making them suitable for local treatment or protection. Because natural latex can be sensitizing, some products use hypoallergenic formulations or synthetic alternatives.

[0003] While existing technologies can achieve a certain filling effect for latex products, they suffer from drawbacks: they lack high-precision feeding and have issues with filler interference. In view of this, we propose a cream filling device that solves the above problems. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a cream filling device.

[0005] The technical solution of this utility model is as follows: A cream filling device includes a collection tank, a storage bin, a lead screw, and a second mounting frame. Fixed frames are provided on both sides of the collection tank. A storage bin is inserted into the inside of the fixed frames. A retaining ring is provided on the outer wall of the storage bin. The second mounting frame is fixed to the upper end of the retaining ring. A limiting ring is rotatably installed in the middle of the second mounting frame. A gear with internal threads is fixed to the upper end of the limiting ring. A lead screw is inserted into the middle of the second mounting frame and threadedly connected to the gear. A piston is rotatably installed at the lower end of the lead screw and inserted into the inside of the storage bin. A nozzle is provided at the lower end of the storage bin.

[0006] In operation, this device uses a feed pipe to add material to a collection tank equipped with a water pump. Then, a servo motor drives a lead screw to rotate, moving a piston to its highest point. The control valve is then opened, and the water pump injects material through a transmission pipe from the bottom of the storage bin until it contacts the bottom of the piston. A pressure relief valve at the top of the piston ensures smooth feeding. The servo motor then rotates in the opposite direction a certain amount, driving the piston downwards to press the material, allowing a certain amount to be sprayed from the nozzle. When one storage bin is empty, the servo motor can rotate 180 degrees to fill the other storage bin, allowing the empty bin to be filled. The servo motor rotates back and forth, avoiding wire entanglement. This device can achieve continuous, high-precision ointment filling and has high practicality.

[0007] Preferably, limit rods are fixed on both sides of the upper end of the piston. The limit rods are inserted into the second mounting bracket. The limit rods can prevent the piston from shifting or rotating during movement, ensuring that the piston fits tightly against the inner wall of the storage bin, reducing the risk of material leakage and improving filling stability.

[0008] Preferably, a mounting base one is fixed to one side of the upper end of the retaining ring, and a mounting base two is fixed to the upper end of the mounting base one. A gear two is rotatably mounted inside the mounting base two, and the gear two meshes with the gear one. The gear transmission structure (gear one meshes with gear two) converts the rotational motion of the servo motor two into the linear motion of the lead screw, which has high transmission efficiency, fast response speed, and facilitates precise control of the piston stroke.

[0009] Preferably, a second servo motor is fixed at one end of the mounting base. The output shaft of the second servo motor is fixedly connected to the rotation center of the lower end of the second gear. The second servo motor drives the second gear to rotate, which in turn drives the first gear and the lead screw to move, thereby realizing the precise lifting and lowering of the piston and programmable control of the filling volume.

[0010] Preferably, a control valve is fixed on one side of the lower end of the storage bin, and a transmission pipe is provided between the control valve and the collection tank. A water pump is provided inside the collection tank. The combination of water pump and control valve can realize rapid material transportation, reduce manual intervention, and improve the degree of automation. The control valve can precisely adjust the feeding speed.

[0011] Preferably, a rotating ring is rotatably mounted on the upper end of the collection tank, and a feed pipe is provided on the upper end of the rotating ring. A control panel is fixed on one side of the outer wall of the collection tank. The rotating ring design can prevent the feed pipe from getting tangled when the storage bin rotates, thus improving the reliability of the equipment operation. The control panel integrates an operation interface, which facilitates the adjustment of filling parameters.

[0012] Preferably, a base plate is provided below the collection tank, a hydraulic cylinder is fixed to the upper end of the base plate, a hydraulic rod is provided to the upper end of the hydraulic cylinder, a mounting bracket is fixed to the upper end of the hydraulic rod, a servo motor is fixed to the lower end of the mounting bracket, the output shaft of the servo motor is fixedly connected to the rotation center of the lower end of the collection tank, and a base is fixed to the lower end of the base plate. The hydraulic cylinder can adjust the filling height to adapt to containers of different sizes; the servo motor drives the collection tank to rotate back and forth, realizing rapid switching between the two storage bins and improving continuous operation capability; the base enhances the stability of the equipment and reduces the impact of vibration on filling accuracy.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This utility model discloses a cream filling device that achieves high-precision, high-efficiency, and automated cream filling through a structural design of alternating operation of dual storage bins, precision transmission of lead screw and piston, servo motor, and gear drive. Its main advantages include: continuous filling; precise quantitative filling; high degree of automation; strong adaptability; and good stability.

[0015] Based on the first beneficial effect, the dual storage bins are used in an alternating working mode. The servo motor drives the bins to rotate 180°, enabling continuous filling, avoiding downtime for refilling, and improving production efficiency. The precision transmission structure of the screw and piston can accurately control the downward pressure, ensuring stable filling dosage and small error, which is suitable for quantitative filling of high-viscosity creams. The piston is equipped with a pressure relief valve at the top, which can balance the air pressure inside the storage bin and prevent material residue or air bubbles from affecting the filling accuracy.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is a front view schematic diagram of the present invention;

[0019] Figure 3 This is a top view of the present invention;

[0020] Figure 4 For the present utility model Figure 1 Enlarged schematic diagram of structure A in the middle;

[0021] Figure 5 For the present utility model Figure 3 Enlarged schematic diagram of the B-structure;

[0022] Figure 6 For the present utility model Figure 2 Enlarged schematic diagram of the C-structure.

[0023] Figure label:

[0024] 1. Collection tank; 2. Control panel; 3. Servo motor 1; 4. Hydraulic rod; 5. Base plate; 6. Base; 7. Hydraulic cylinder; 8. Mounting bracket 1; 9. Storage bin; 10. Fixing bracket; 11. Rotating ring; 12. Feed pipe; 13. Lead screw; 14. Gear 1; 15. Limit rod; 16. Limit ring; 17. Servo motor 2; 18. Gear 2; 19. Mounting seat 1; 20. Mounting seat 2; 21. Retaining ring; 22. Mounting bracket 2; 23. Nozzle; 24. Control valve; 25. Transmission pipe; 26. Piston. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual proportions. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] Please see Figures 1-6 As shown, this embodiment is a cream filling device, including a collection tank 1, a storage bin 9, a lead screw 13 and a mounting frame 22. The collection tank 1 is provided with fixed frames 10 on both sides. The storage bin 9 is inserted into the fixed frame 10. The storage bin 9 is provided with a retaining ring 21 on the outer wall. The mounting frame 22 is fixed to the upper end of the retaining ring 21. A limit ring 16 is rotatably installed in the middle of the mounting frame 22. A gear 14 with internal threads is fixed to the upper end of the limit ring 16. The lead screw 13 is inserted into the middle of the mounting frame 22. The lead screw 13 is threadedly connected to the gear 14. A piston 26 is rotatably installed at the lower end of the lead screw 13. The piston 26 is inserted into the storage bin 9. A nozzle 23 is provided at the lower end of the storage bin 9.

[0031] In use, this device adds material to the collection tank 1 equipped with a water pump via the feed pipe 12. Then, the servo motor 17 drives the lead screw 13 to rotate, moving the piston 26 to its highest point. The control valve 24 is then opened, and the water pump injects the material through the transmission pipe 25 from the lower end of the storage bin 9 until it contacts the lower end of the piston 26. The piston 26 is equipped with a pressure relief valve at its upper end to ensure smooth feeding. Then, the servo motor 17 rotates in the opposite direction by a certain amount, driving the piston 26 to press the material downwards, allowing a certain amount of material to be sprayed out from the nozzle 23. When one storage bin 9 is emptied, the servo motor 3 can be used to drive the other side to rotate 180 degrees, allowing the other side to work. The empty storage bin 9 can then be filled on the other side. The servo motor 3 rotates back and forth, avoiding wire entanglement. This device can achieve continuous high-precision filling of ointments and has high practicality.

[0032] Example 2

[0033] Please see Figures 1-6 As shown, this embodiment, based on embodiment 1, further includes: limiting rods 15 fixed on both sides of the upper end of the piston 26. The limiting rods 15 are inserted into the inside of the mounting bracket 22. The limiting rods 15 can prevent the piston 26 from shifting or rotating during movement, ensuring that the piston 26 is tightly fitted to the inner wall of the storage bin 9, reducing the risk of material leakage and improving filling stability.

[0034] A mounting base 19 is fixed to one side of the upper end of the retaining ring 21. A mounting base 20 is fixed to the upper end of the mounting base 19. A gear 28 is rotatably mounted inside the mounting base 20. The gear 28 meshes with the gear 14. The gear transmission structure (gear 14 meshes with gear 28) converts the rotational motion of the servo motor 27 into the linear motion of the lead screw 13. The transmission efficiency is high, the response speed is fast, and it is convenient to accurately control the stroke of the piston 26.

[0035] The lower end of the mounting base 19 is fixed with a servo motor 17. The output shaft of the servo motor 17 is fixedly connected to the rotation center of the lower end of the gear 18. The servo motor 17 drives the gear 18 to rotate, which in turn drives the gear 14 and the lead screw 13 to move, so as to realize the precise lifting and lowering of the piston 26 and the programmable control of the filling volume.

[0036] A control valve 24 is fixed on one side of the lower end of the storage bin 9. A transmission pipe 25 is provided between the control valve 24 and the collection tank 1. A water pump is provided inside the collection tank 1. The combination of water pump and control valve 24 can realize the rapid conveying of materials, reduce manual intervention, and improve the degree of automation. The control valve 24 can precisely adjust the feeding speed.

[0037] A rotating ring 11 is rotatably installed on the upper end of the collection tank 1. A feed pipe 12 is provided on the upper end of the rotating ring 11. A control panel 2 is fixed on one side of the outer wall of the collection tank 1. The rotating ring 11 is designed to prevent the feed pipe 12 from getting tangled when the storage bin 9 rotates, thus improving the reliability of the equipment operation. The control panel 2 integrates an operation interface, which is convenient for adjusting filling parameters.

[0038] A base plate 5 is provided below the collection tank 1. A hydraulic cylinder 7 is fixed to the upper end of the base plate 5. A hydraulic rod 4 is provided to the upper end of the hydraulic cylinder 7. A mounting bracket 8 is fixed to the upper end of the hydraulic rod 4. A servo motor 3 is fixed to the lower end of the mounting bracket 8. The output shaft of the servo motor 3 is fixedly connected to the rotation center of the lower end of the collection tank 1. A base 6 is fixed to the lower end of the base plate 5. The hydraulic cylinder 7 can adjust the filling height to adapt to containers of different sizes. The servo motor 3 drives the collection tank 1 to rotate back and forth, realizing the rapid switching of the dual storage bins 9 and improving the continuous operation capability. The base 6 enhances the stability of the equipment and reduces the impact of vibration on the filling accuracy.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A cream filling device, comprising a collection tank (1), a storage bin (9), a lead screw (13), and a mounting frame (22), characterized in that: The collection trough (1) is provided with fixed frames (10) on both sides. A storage bin (9) is inserted inside the fixed frame (10). A retaining ring (21) is provided on the outer wall of the storage bin (9). A second mounting frame (22) is fixed at the upper end of the retaining ring (21). A limiting ring (16) is rotatably installed in the middle of the second mounting frame (22). A gear (14) with internal threads is fixed at the upper end of the limiting ring (16). A lead screw (13) is inserted in the middle of the second mounting frame (22). The lead screw (13) is threadedly connected to the gear (14). A piston (26) is rotatably installed at the lower end of the lead screw (13). The piston (26) is inserted into the storage bin (9). A nozzle (23) is provided at the lower end of the storage bin (9).

2. A cream filling device according to claim 1, characterized in that: Limiting rods (15) are fixed on both sides of the upper end of the piston (26), and the limiting rods (15) are inserted into the inside of the mounting bracket (22).

3. The cream filling apparatus of claim 1, wherein: The retaining ring (21) has a mounting base one (19) fixed on one side of its upper end, and a mounting base two (20) is fixed on the upper end of the mounting base one (19). A gear two (18) is rotatably mounted inside the mounting base two (20), and the gear two (18) meshes with the gear one (14).

4. A cream filling device according to claim 3, wherein: The lower end of the mounting base (19) is fixed with a servo motor (17), and the output shaft of the servo motor (17) is fixedly connected to the rotation center of the lower end of the gear (18).

5. The cream filling apparatus of claim 1, wherein: A control valve (24) is fixed on one side of the lower end of the storage bin (9). A transmission pipe (25) is provided between the control valve (24) and the collection tank (1). A water pump is provided inside the collection tank (1).

6. A cream filling device according to claim 5, wherein: A rotating ring (11) is rotatably mounted on the upper end of the collection tank (1), and a feed pipe (12) is provided on the upper end of the rotating ring (11). A control panel (2) is fixed on one side of the outer wall of the collection tank (1).

7. The cream filling apparatus of claim 1, wherein: The collection tank (1) is provided with a base plate (5) below it. A hydraulic cylinder (7) is fixed at the upper end of the base plate (5). A hydraulic rod (4) is provided at the upper end of the hydraulic cylinder (7). A mounting bracket (8) is fixed at the upper end of the hydraulic rod (4). A servo motor (3) is fixed at the lower end of the mounting bracket (8). The output shaft of the servo motor (3) is fixedly connected to the rotation center at the lower end of the collection tank (1). A base (6) is fixed at the lower end of the base plate (5).