A special ointment paste extruding mechanism
By designing a pressure plate and venting mechanism with non-stick material, the problems of discontinuous extrusion and residual waste in the ointment preparation device were solved, realizing continuous extrusion and efficacy stability of the ointment, and improving the efficiency and efficacy of the ointment preparation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING SUNNY MEDICAL TECH DEV CO LTD
- Filing Date
- 2025-03-24
- Publication Date
- 2026-07-07
AI Technical Summary
Existing ointment preparation devices cannot continuously extrude ointments at room temperature and there is a problem of ointment residue and waste. In particular, the hydrogel ointment is viscous and has low cohesion, resulting in discontinuous extrusion and excessive ointment residue.
A special ointment extrusion mechanism was designed, including a pressure plate made of non-stick material and an exhaust mechanism. The pressure plate is driven to move up and down in the ointment chamber by a drive unit, and the exhaust mechanism is used to discharge or inject gas from the ointment to ensure continuous extrusion and quantitative control of the ointment.
It enables continuous extrusion and precise control of ointment paste, reduces ointment paste residue, improves the continuity of the ointment patch manufacturing process and the stability of efficacy, and reduces waste.
Smart Images
Figure CN224461999U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ointment preparation technology, and in particular to a special ointment dispensing mechanism. Background Technology
[0002] Traditional Chinese medicine (TCM) prescriptions are formulated based on individualized TCM prescriptions (one prescription per person) issued by TCM physicians after diagnosis and treatment of the patient. These products are prepared in hospitals using traditional TCM techniques, commissioned by the patient. Currently, the hospital's equipment for preparing medicated plasters allows for mixing and preparation of the final ointment at room temperature, ensuring that the ointment does not compromise the drug's efficacy during clinical use.
[0003] However, in actual operation, this preparation device suffers from two defects during the extrusion of the ointment due to the characteristics of the hydrogel ointment, such as its viscous consistency and low cohesiveness:
[0004] 1. Unable to continuously extrude ointment (or unable to continuously and accurately control the amount of ointment extruded);
[0005] 2. As the amount of ointment in the pharmaceutical ointment box gradually decreases, the ointment remains excessively due to its viscous consistency, resulting in significant waste.
[0006] Therefore, in order to address the above-mentioned defects, it is necessary to design a special extrusion mechanism for hydrogel ointments, which solves the above problems. Utility Model Content
[0007] The purpose of this invention is to provide a special ointment dispensing mechanism to solve the problems existing in the prior art, improve the continuity of the hydrogel ointment patch manufacturing process, and ensure the stability of the final patch's efficacy; it also improves the defect of excessive ointment residue and waste caused by the viscous consistency of the ointment.
[0008] To achieve the above objectives, this utility model provides the following solution: This utility model provides a special ointment extrusion mechanism, including a pressure plate mechanism and an exhaust mechanism. The pressure plate mechanism includes a drive unit and a pressure plate. The drive unit is used to drive the pressure plate to move up and down in a cavity containing the ointment. The pressure plate is used to extrude the ointment from the cavity. The pressure plate is made of a non-stick material. The exhaust mechanism is provided on the pressure plate. The exhaust mechanism is used to discharge gas from the ointment or to introduce gas between the pressure plate and the cavity.
[0009] In one embodiment, the drive unit includes a lifting cylinder mounted on the top of the chamber containing the paste, and the lifting cylinder is used to drive the pressure plate to move up and down along the inner wall of the chamber.
[0010] In one embodiment, the drive unit further includes a pressure plate column, the bottom of the telescopic rod of the lifting cylinder is connected to the pressure plate column, and the bottom of the pressure plate column is fitted with the pressure plate.
[0011] In one embodiment, the pressure plate column includes an integral column body and a conical connecting plate. The top of the column body is fixedly connected to the telescopic rod of the lifting cylinder, and the bottom of the column body is the conical connecting plate. The pressure plate is sleeved on the conical connecting plate.
[0012] In one embodiment, the top diameter of the conical connecting disc is larger than the bottom diameter, the pressure plate is made of non-stick silicone material, and the pressure plate is tightly fitted around the outer periphery of the conical connecting disc.
[0013] In one embodiment, the outer periphery of the pressure plate is tightly fitted to the inner wall of the cavity containing the paste.
[0014] In one embodiment, the exhaust mechanism includes an exhaust port and an air pipe. The exhaust port is provided on the pressure plate and extends through and connects the bottom and top of the pressure plate. The air pipe is connected to the top of the exhaust port.
[0015] In one embodiment, the trachea is made of transparent PU trachea.
[0016] In one embodiment, an exhaust switch is provided on the air pipe.
[0017] In one embodiment, the other end of the trachea is detachably connected to a gas source.
[0018] The present invention achieves the following beneficial technical effects compared to the prior art:
[0019] This utility model discloses a special ointment extrusion mechanism, including a pressure plate mechanism and an exhaust mechanism. The pressure plate mechanism comprises a drive unit and a pressure plate. The drive unit drives the pressure plate to move up and down within the cavity containing the ointment, and the pressure plate extrudes the ointment from the cavity. The pressure plate is made of a non-stick material. An exhaust mechanism is provided on the pressure plate to discharge gas from the ointment or to introduce gas between the pressure plate and the cavity. This special ointment extrusion mechanism completely solves the problem of inconsistent ointment extrusion (or inability to precisely control the amount of ointment extruded) caused by the viscous and low cohesive properties of hydrogel ointments. This improves the continuity of the hospital's personalized hydrogel ointment patch manufacturing process and ensures the stability of the final patch's efficacy. It also addresses the defect of excessive ointment residue and waste caused by the viscous nature of the ointment. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 A schematic diagram of the overall structure of a special ointment / slurry dispensing mechanism;
[0022] The components include: 1. lifting cylinder; 2. column; 3. pressure plate; 4. exhaust port; and 5. air pipe. Detailed Implementation
[0023] 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.
[0024] The purpose of this invention is to provide a special ointment dispensing mechanism to solve the problems existing in the prior art, improve the continuity of the hydrogel ointment patch manufacturing process, and ensure the stability of the final patch's efficacy; it also improves the defect of excessive ointment residue and waste caused by the viscous consistency of the ointment.
[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] like Figure 1 As shown, this utility model provides a special ointment extrusion mechanism, including a pressure plate mechanism and an exhaust mechanism. The pressure plate mechanism includes a drive unit and a pressure plate 3. The drive unit is used to drive the pressure plate 3 to move up and down in the cavity containing the ointment. The pressure plate 3 is used to squeeze the ointment out of the cavity. The pressure plate 3 is made of a non-stick material. An exhaust mechanism is provided on the pressure plate 3. The exhaust mechanism is used to discharge the gas in the ointment or to introduce gas between the pressure plate 3 and the cavity.
[0027] In one embodiment, the drive unit includes a lifting cylinder 1, which is mounted on a mounting plate on top of the chamber containing the paste. The lifting cylinder 1 is used to drive the pressure plate 3 to move up and down along the inner wall of the chamber.
[0028] In one embodiment, the drive unit further includes a pressure plate column, the bottom of the telescopic rod of the lifting cylinder 1 is connected to the pressure plate column, and the bottom of the pressure plate column is equipped with a pressure plate 3.
[0029] In one embodiment, the pressure plate column includes an integral column body 2 and a conical connecting plate. The top of the column body 2 is fixedly connected to the telescopic rod of the lifting cylinder 1, and the bottom of the column body 2 is the conical connecting plate. The pressure plate 3 is sleeved on the conical connecting plate. Figure 1 As shown, a connecting sleeve can be fixed to the top of the column 2, and then the connecting sleeve can be fixed to the outside of the telescopic rod of the lifting air rod by bolts, so that the column 2 and the lifting air cylinder 1 can be fixed. Of course, other forms of fixing can also be used in practical applications.
[0030] In one embodiment, the top diameter of the conical connecting disc is larger than the bottom diameter. The pressure plate 3 is made of non-stick silicone material and is tightly fitted onto the outer periphery of the conical connecting disc. The non-stick silicone material of the pressure plate 3 is itself malleable, allowing it to be stretched and fitted to the outside of the conical connecting disc. Then, under the action of its own elastic restoring force, the pressure plate 3 can be tightly fitted onto the outside of the conical connecting disc. Simultaneously, the bottom of the pressure plate 3 also adopts a conical shape, conforming to the shape of the bottom of the chamber near the paste outlet. This ensures that the pressure plate 3 fully squeezes out the paste from the chamber.
[0031] In one embodiment, the outer periphery of the pressure plate 3 is tightly fitted to the inner wall of the chamber containing the ointment. The maximum diameter of the pressure plate 3 can be slightly larger than the inner diameter of the chamber. Due to the plasticity of the pressure plate 3, under the pressure of the lifting cylinder 1, the pressure plate 3 can completely scrape off the ointment on the side wall of the chamber, thereby improving the defect of excessive ointment residue and waste caused by the viscous consistency of the ointment. At the same time, by controlling the downward pressure through the lifting cylinder 1, the pressure plate 3 continuously and quantitatively squeezes the hydrogel ointment out of the ointment box, achieving precise squeezing of the ointment amount each time.
[0032] In one embodiment, the exhaust mechanism includes an exhaust port 4 and an air pipe 5. The pressure plate 3 has an exhaust port 4, which extends through and connects the bottom and top of the pressure plate 3. The corresponding position of the conical connecting plate also extends through and connects, and the top of the exhaust port 4 is connected to the air pipe 5.
[0033] In one embodiment, the trachea 5 is made of transparent PU trachea.
[0034] In one embodiment, an exhaust switch is provided on the trachea 5.
[0035] In one embodiment, the other end of the trachea 5 is detachably connected to an air source.
[0036] When the pressure plate 3 is pressed down, the operator opens the exhaust switch to expel excess air from the top of the hydrogel ointment through the exhaust port 4. When the operator observes the ointment overflowing from the exhaust port 4 through the transparent PU air tube, the exhaust port 4 is closed. When the pressure plate 3 is pressed down to the bottom of the ointment tank, the operator opens the exhaust switch again to inject compressed gas through the exhaust port 4, and at the same time opens the lifting cylinder 1 to raise the pressure plate 3.
[0037] The ointment-specific extrusion mechanism of this utility model has the following characteristics:
[0038] 1. The pressure plate 3 made of non-stick silicone material is not only soft, high temperature resistant, and corrosion resistant, but also has the advantages of strong adhesion to the inner wall of the pharmaceutical ointment box and not easily sticking to the hydrogel ointment. It can continuously and quantitatively squeeze the hydrogel ointment out of the pharmaceutical ointment box, so as to achieve precise squeezing of ointment each time.
[0039] 2. The exhaust port 4 of the through pressure plate 3 can remove excess air from the top of the hydrogel ointment when the ointment is squeezed out, so that no air bubbles are generated in the core of the hydrogel ointment patch, ensuring the stability of the drug content in the core of the hydrogel ointment patch.
[0040] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.
[0041] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A special ointment / slurry dispensing mechanism, characterized in that: It includes a pressure plate mechanism and an exhaust mechanism. The pressure plate mechanism includes a drive unit and a pressure plate. The drive unit is used to drive the pressure plate to move up and down in the cavity containing the paste. The pressure plate is used to squeeze the paste out of the cavity. The pressure plate is made of a non-stick material. The exhaust mechanism is provided on the pressure plate. The exhaust mechanism is used to discharge gas in the paste or to introduce gas between the pressure plate and the cavity.
2. The ointment dispensing mechanism according to claim 1, characterized in that: The drive unit includes a lifting cylinder, which is installed on the top of the chamber containing the paste. The lifting cylinder is used to drive the pressure plate to move up and down along the inner wall of the chamber.
3. The ointment dispensing mechanism according to claim 2, characterized in that: The drive unit also includes a pressure plate column, the bottom of the telescopic rod of the lifting cylinder is connected to the pressure plate column, and the bottom of the pressure plate column is equipped with the pressure plate.
4. The ointment dispensing mechanism according to claim 3, characterized in that: The pressure plate column includes an integral column body and a conical connecting plate. The top of the column body is fixedly connected to the telescopic rod of the lifting cylinder, and the bottom of the column body is the conical connecting plate. The pressure plate is sleeved on the conical connecting plate.
5. The ointment dispensing mechanism according to claim 4, characterized in that: The top diameter of the conical connecting plate is larger than the bottom diameter, and the pressure plate is made of non-stick silicone material. The pressure plate is tightly fitted around the outer periphery of the conical connecting plate.
6. The ointment dispensing mechanism according to claim 1, characterized in that: The outer periphery of the pressure plate is tightly fitted to the inner wall of the cavity containing the paste.
7. The ointment dispensing mechanism according to claim 1, characterized in that: The exhaust mechanism includes an exhaust port and an air pipe. The exhaust port is provided on the pressure plate and extends through and connects the bottom and top of the pressure plate. The air pipe is connected to the top of the exhaust port.
8. The ointment dispensing mechanism according to claim 7, characterized in that: The air tube is made of transparent PU.
9. The ointment dispensing mechanism according to claim 8, characterized in that: An exhaust switch is installed on the air pipe.
10. The ointment dispensing mechanism according to claim 7, characterized in that: The other end of the trachea is detachably connected to a gas source.