CN110604694B - Dripper capable of eliminating accompanying liquid drops in liquid dripping process - Google Patents
Dripper capable of eliminating accompanying liquid drops in liquid dripping process Download PDFInfo
- Publication number
- CN110604694B CN110604694B CN201910886310.0A CN201910886310A CN110604694B CN 110604694 B CN110604694 B CN 110604694B CN 201910886310 A CN201910886310 A CN 201910886310A CN 110604694 B CN110604694 B CN 110604694B
- Authority
- CN
- China
- Prior art keywords
- liquid
- dripper
- liquid medicine
- drip
- fixing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 147
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000003814 drug Substances 0.000 claims abstract description 76
- 230000008676 import Effects 0.000 claims 1
- 239000006187 pill Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 239000002202 Polyethylene glycol Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- 229920001223 polyethylene glycol Polymers 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
- A61J3/06—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms into the form of pills, lozenges or dragees
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a novel dripper for eliminating liquid drops in the liquid dripping process, which comprises a dripper body and a dripper needle, wherein threads connected with a drip tray are arranged outside the upper end of the dripper body, a liquid medicine channel is arranged in the dripper body, and the upper end of the liquid medicine channel is a liquid medicine inlet; a groove is arranged below the liquid medicine inlet, and the width of the groove is larger than that of the liquid medicine channel; the lower end of the dripper body is provided with a drip nozzle of the dripper; the drip needle consists of an upper part and a lower part, the upper part is a fixing device, the length of the fixing device corresponds to the length of a groove in the drip head body, the width of the fixing device is smaller than the diameter of the liquid medicine channel, and the fixing device is accommodated in the groove; the lower part is a cylindrical drop needle rod, and after the drop needle is fixed, the length of the drop needle rod protruding out of the drop nozzle is 1-10mm, and the drop needle rod is coaxial with the liquid medicine channel. The dripper has simple structure and convenient installation; can effectively eliminate the accompanying liquid drops generated in the process of dropping the liquid medicine through the drippers, has good forming effect and stable quality of dripping pill products.
Description
Technical Field
The invention belongs to the technical field of pharmaceutical machinery, in particular to a novel dripper for eliminating accompanying liquid drops in the liquid dripping process, which is applied to dripping pill forming equipment in a dripping pill production line.
Background
The dripping pill is a small pill preparation prepared by heating, melting and mixing solid or liquid medicine and proper substances (matrix), dripping into immiscible condensate, and condensing.
The dripper is a key component in the dripping pill forming equipment, the shape and the size of the dripper directly affect the size and the shape of the dripping pill, the quality of products is related, and particularly the weight difference of the dripping pill and the uniformity of the medicine content can be affected.
In the existing dripping pill preparation process, the dripper in the dripping pill forming equipment adopts an equal diameter structure in the liquid medicine channel arranged in the dripping pill forming equipment, the inner diameter of the liquid medicine channel is equal to the diameter of the dripping pill, and the dripping is completed through the dripping nozzle by means of the dead weight of the liquid medicine. The liquid medicine is dropped out by the dripper without adding external conditions, and a natural dropping method is adopted, because the liquid medicine is formed mainly by the action of dropping gravity, liquid surface tension and internal stress, a large number of liquid lines are formed between the liquid drops when the liquid drops are dropped, and accompanying liquid drops are generated by breaking the liquid lines in the dropping process (the liquid lines are generated in the dropping process due to the viscosity of the liquid, and small particles with the particle size far smaller than that of the liquid drops are called accompanying liquid drops) are generated by breaking the liquid lines in the breaking process. In most cases in production, the accompanying droplets are useless for production and even negatively affect production, for example, the quality of individual droplets is uneven and difficult to control due to the fact that the production of the accompanying droplets occupies a part of the liquid, and the liquid utilization rate is lowered.
The existing drippers commonly generate accompanying liquid drops in the dripping process, which can reduce the production efficiency and even prevent the normal operation of the production system. Therefore, the method for effectively eliminating the generation of the accompanying liquid drops and improving the liquid utilization rate in the liquid drop preparation process is an important direction for development and exploration in the aspect of liquid drop preparation at the present stage.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art and providing the water dropper which has the advantages of simple structure and convenient installation; can effectively eliminate the accompanying liquid drops generated in the process of dropping the liquid medicine through the drippers, has good forming effect and stable quality of dripping pill products.
The technical problems to be solved by the invention are realized by the following technical scheme:
the invention provides a novel dripper for eliminating liquid drops in the liquid dripping process, which comprises a dripper body and a dripper needle, wherein threads connected with a drip tray are arranged outside the upper end of the dripper body, a liquid medicine channel is arranged in the dripper body, and the upper end of the liquid medicine channel is a liquid medicine inlet, and the novel dripper is characterized in that:
a groove is arranged below the liquid medicine inlet, and the width of the groove is larger than that of the liquid medicine channel; the lower end of the dripper body is provided with a drip nozzle of the dripper; the drip needle consists of an upper part and a lower part, the upper part is a fixing device, the length of the fixing device corresponds to the length of a groove in the drip head body, the width of the fixing device is smaller than the diameter of the liquid medicine channel, and the fixing device is accommodated in the groove; the lower part is a cylindrical drop needle rod, and after the drop needle is fixed, the length of the drop needle rod protruding out of the drop nozzle is 1-10mm, and the drop needle rod is coaxial with the liquid medicine channel.
The height of the fixing device is the distance from the liquid medicine inlet to the bottom surface of the groove.
The outline shape of the bottom of the fixing device is consistent with the outline shape of the bottom surface of the groove.
The dripper body above the liquid medicine inlet is provided with a necking, and the diameter of the lower end of the necking is the same as the diameter of the liquid medicine channel.
The length of the liquid medicine channel is 12mm, and the diameter is 1.5-3.0mm.
The fixing device is in a disc shape or a rectangular sheet, and the thickness of the fixing device is 1mm.
The projecting length of the drip needle rod at the drip nozzle is 5mm, the diameter of the drip needle rod is 0.6mm, and the diameter of the liquid medicine channel is 2.6mm.
Compared with the prior art, the invention has the beneficial effects that:
the method provided by the invention can effectively reduce the generation of liquid drops in the process of dripping. On the premise of not increasing the manufacturing cost, the liquid drop quality is uniform, the control is easy, and the liquid utilization rate is increased.
Drawings
FIG. 1 is a cross-sectional view showing the overall structure of the dripper of the present invention.
Fig. 2 (a) is a schematic front view of the structure of the dripper body according to the present invention, and fig. 2 (b) is a schematic cross-sectional structure of the dripper body according to the present invention.
Fig. 3 (a) is a schematic diagram of the front view structure of the drip needle according to the present invention, and fig. 3 (b) is a schematic diagram of the right view structure of the drip needle according to the present invention.
FIG. 4 is a schematic view showing the whole experimental structure of the dripper of the present invention in use
FIG. 5 (a) shows the dripping condition of a conventional dripper when liquid polyethylene glycol is dripped;
FIG. 5 (b) shows the dropping state of the dripper of the present invention when the liquid polyethylene glycol is dripped.
In the figure, 1 dripper body, 2 drop needles, 3 drop discs, 11 drop nozzles, 12 liquid medicine channels, 13 liquid medicine outlets, 14 grooves, 15 liquid medicine inlets, 16 necking, 21 drop needle rods and 22 fixing devices.
Detailed Description
The invention is further described below with reference to the drawings and specific examples.
FIG. 1 is a cross-sectional view showing the overall structure of the dripper of the present invention. As shown in fig. 1, the present invention provides a dripper comprising a dripper body 1 and a dripper needle 2. As shown in fig. 2 (a) and 2 (b), the exterior of the upper end of the dripper body 1 is provided with threads for connection with the drip tray 3, which can achieve tight connection and sealing of the dripper body and the drip tray. The liquid medicine channel 12 is arranged in the dripper body, the tail end of the liquid medicine channel is the drip nozzle 11, the groove 14 and the necking 16 are arranged on the upper portion of the dripper body, the lower end face of the groove is communicated with the liquid medicine channel 12, the width of the groove is larger than that of the liquid medicine channel, the purpose of the drip nozzle is to install and fix the drip needle 2, the necking 16 facilitates the liquid medicine to enter the liquid medicine channel, and the resistance during entering is reduced. As shown in fig. 3 (a) and 3 (b), the upper part of the drip needle is a fixing device 22, the fixing device can be fixedly installed in the groove of the drip head body, the lower part of the drip needle is a drip needle rod 21, the drip needle rod 21 coaxially stretches into the liquid medicine channel, and the length of the drip needle rod 21 is not less than the length of the liquid medicine channel, so that the liquid in the liquid medicine channel can be conveniently guided. When the drip needle is arranged in the drip head body, the drip needle and the liquid medicine channel of the drip head body are coaxially fixed, so that the drip needle can be vertically placed in the liquid medicine channel, the drip head is always in a vertical state when in use, shaking cannot occur, and the drip needle rod and the liquid medicine channel are always in a coaxial state.
In order to ensure the best dropping effect of the liquid medicine through the dropping head, the length of the liquid medicine channel 12 in the dropping head body is 12mm, the diameter is 1.5-3.0mm, and the diameter is 2.6mm.
In order to facilitate the installation of the drip needle and ensure the stability of the drip needle, the shape of the fixing device 22 at the upper part of the drip needle can be selected to be round or rectangular, the diameter or side length can be selected to be 4-10mm, and the square shape and the side length of 6mm are the best. The shape of the groove in the dripper body can be selected to be semicircular or rectangular, the size of the groove can accommodate the fixing device and is 1-3mm larger than the diameter or side length of the fixing device, so that the side length is 8mm, and the depth is 6mm.
In order to achieve the best effect of eliminating accompanying liquid drops, and ensure that fewer accompanying liquid drops are generated in the process of liquid medicine dripping, the invention can select drip needle rods with different lengths and diameters for liquid medicines with different viscosities and surface tension, the surface tension is 1-70N/m, the viscosity is 100-800cp, at the moment, the protruding length of the drip needle rod at the drip nozzle of the drip head body is 1-10mm, the diameter of the drip needle rod is smaller than the diameter of a liquid medicine channel, about 0.1-1.0mm, the length of the drip needle is the best when the liquid medicine is liquid polyethylene glycol, at the moment, the protruding length of the drip needle rod at the drip nozzle of the drip head is 5mm, and the diameter of the drip needle rod is the best.
Example 1
A method for eliminating accompanying liquid drops in the process of dripping liquid polyethylene glycol (surface tension 50.43N/m, viscosity 800 cp) through the dripper of the embodiment, comprising the following steps:
(1) The solid polyethylene glycol was heated to 80 ℃ by a heating device and poured into the drip tray 3.
(2) The liquid polyethylene glycol in the drip tray 3 is dripped through the liquid medicine channel 12 and the drip needle rod in the drip head body.
Through multiple tests, according to snap-shot measurement of a plurality of test instruments such as an Olympus i-SPEED high-SPEED camera, fig. 5 (a) shows the dripping condition of liquid polyethylene glycol under the condition of no drip needle, fig. 5 (b) shows the dripping condition of liquid polyethylene glycol under the condition of drip needle, and the situation that the liquid polyethylene glycol almost has no accompanying liquid drops under the condition of drip needle can be obviously seen, and under the condition of no drip needle, obvious liquid lines are generated and broken, and the broken liquid lines can form accompanying liquid drops, so that the production of the accompanying liquid drops can be effectively eliminated, and the production quantity of the compared accompanying liquid drops is eliminated by about 50% by mass.
The dripper body and the dripper are both made of 316L stainless steel, a cuboid fixing device is arranged above the dripper, the length, the width and the height of the cuboid are 6mm, 1mm and 6mm respectively, a dripper rod is connected to the lower end of the fixing device through welding, and the length of the dripper rod can be changed according to different liquids. The upper portion of dripper body is the fine thread of screw thread model M10X1.25, and the middle part is the hexagonal prism, and the lower extreme angular point position of hexagonal prism carries out the fillet and handles, and the lower extreme angular point position of nozzle also carries out the fillet and handles, and fillet radius is 1mm. The side length of the hexagonal prism part is 8mm, the height is 5mm, and the hexagonal prism is convenient for mounting on the drip tray. The liquid medicine inlet of the liquid medicine channel is arranged at the upper end of the groove, and the liquid medicine outlet 13 is flush with the lower end face of the drip nozzle 11. The liquid medicine does not enter the drip needle but flows from the liquid medicine channel, the length of the drip needle rod of the liquid polyethylene glycol used in the embodiment is optimal to be 17mm, at the moment, the protruding length of the drip needle rod at the drip nozzle of the drip head body is 5mm, and the diameter of the drip needle rod is optimal to be 0.6 mm. The diameters of the liquid medicine channel 12 and the lower end of the necking are 2.6mm.
Example 2
The dripper of this embodiment includes dripper body and drop needle, and the outside upper end of dripper body is equipped with the screw thread that is used for being connected with the drip tray, is equipped with the liquid medicine passageway in the dripper body, and the end of liquid medicine passageway is the liquid medicine drip nozzle, the liquid medicine passageway in be provided with the installation drop needle recess, the drop needle comprises the fixed sheet of upper portion and the drop needle pole of lower part, the length of fixed sheet cooperatees with recess length or recess bottom surface shape in the dripper body, the fixed and the installation of convenient drop needle pole, the drop needle pole of lower part plays the drainage effect to the liquid medicine in the liquid medicine passageway for the cylinder. The drop needle bar and the fixing device are integrally formed.
When in use, the drip needle is required to be arranged on the drip head body. Through the mode of adding the drop needle in the dripper liquid medicine passageway, the liquid line produces and lengthens on the drop needle when the liquid medicine flows from the dripper, because the addition of drop needle, the drop needle has filled certain liquid line length when the liquid line produces in comparison traditional dripper, has reduced the overall quality of liquid line, and when the liquid line fracture, have more liquid to rebound to the drop needle, make the final accompanying liquid drop that produces reduce, improve liquid utilization, and simple structure, simple to operate, the drop pill shaping is effectual, drop pill product quality is stable.
The invention is applicable to the prior art where it is not described.
Claims (6)
1. The utility model provides an eliminate dripper that liquid whereabouts in-process accompanies liquid droplet, includes dripper body and drop needle, and dripper body upper end outside is equipped with the screw thread of being connected with the drip tray, is equipped with the liquid medicine passageway in the dripper body, and liquid medicine passageway upper end is liquid medicine import, its characterized in that:
a groove is arranged below the liquid medicine inlet, and the width of the groove is larger than that of the liquid medicine channel; the lower end of the dripper body is provided with a drip nozzle of the dripper; the drip needle consists of an upper part and a lower part, the upper part is a fixing device, the length of the fixing device corresponds to the length of a groove in the drip head body, the width of the fixing device is smaller than the diameter of the liquid medicine channel, and the fixing device is accommodated in the groove; the lower part is a cylindrical drop needle rod, and after the drop needle is fixed, the length of the drop needle rod protruding out of the drop nozzle is 1-10mm, and the drop needle rod is coaxial with the liquid medicine channel;
the shape of the bottom of the fixing device is consistent with the shape of the bottom of the groove, and the size of the groove can accommodate the fixing device and is 1-3mm larger than the diameter or side length of the fixing device.
2. The dripper for eliminating liquid drop accompanying during dripping of liquid according to claim 1, wherein the height of the fixing device is the distance from the liquid medicine inlet to the bottom surface of the groove.
3. The dripper for eliminating liquid drops during dripping according to claim 1, wherein a necking is arranged on the dripper body above the liquid medicine inlet, and the diameter of the lower end of the necking is the same as the diameter of the liquid medicine channel.
4. The dripper for eliminating accompanying liquid drops during liquid dripping according to claim 1, wherein the length of the liquid medicine channel is 12mm and the diameter is 1.5-3.0mm.
5. The dripper for eliminating liquid drop accompanying during liquid dripping according to claim 1, wherein the fixing device is in the shape of a circular plate or a rectangular plate, and has a thickness of 1mm.
6. The dripper for eliminating liquid accompanying droplets during liquid dripping according to claim 1, wherein the protruding length of the drip needle bar at the drip nozzle is 5mm, the diameter of the drip needle bar is 0.6mm, and the diameter of the liquid medicine channel is 2.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910886310.0A CN110604694B (en) | 2019-09-19 | 2019-09-19 | Dripper capable of eliminating accompanying liquid drops in liquid dripping process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910886310.0A CN110604694B (en) | 2019-09-19 | 2019-09-19 | Dripper capable of eliminating accompanying liquid drops in liquid dripping process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110604694A CN110604694A (en) | 2019-12-24 |
| CN110604694B true CN110604694B (en) | 2024-04-02 |
Family
ID=68891786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910886310.0A Active CN110604694B (en) | 2019-09-19 | 2019-09-19 | Dripper capable of eliminating accompanying liquid drops in liquid dripping process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110604694B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH205127A (en) * | 1938-05-25 | 1939-06-15 | Chem Ind Basel | Drip stopper on vessels. |
| GB789685A (en) * | 1954-06-19 | 1958-01-29 | Basf Ag | Method and apparatus for manufacturing pellets from fusible materials |
| US6851587B1 (en) * | 1999-11-16 | 2005-02-08 | Arizona Board Of Regents | Crucible and spindle for a variable size drop deposition system |
| CN1827081A (en) * | 2005-03-03 | 2006-09-06 | 北京大学深圳医院 | Pill dropping machine for laboratory |
| JP2007075434A (en) * | 2005-09-15 | 2007-03-29 | Minoru Yukishige | Dripper |
| CN101518495A (en) * | 2009-03-26 | 2009-09-02 | 天津大学 | Vibration crushing type pill dropping machine |
| DE102014001247A1 (en) * | 2014-02-03 | 2015-08-06 | Pheneo Gmbh | A dropper for dispensing drops of a fluid, dropper cap system and container with such a dropper or dropper cap system |
| CN109929750A (en) * | 2019-04-11 | 2019-06-25 | 石家庄禾柏生物技术股份有限公司 | A kind of drop formation device and method |
| CN210991872U (en) * | 2019-09-19 | 2020-07-14 | 天津中新药业集团股份有限公司第六中药厂 | Novel water dropper for eliminating liquid drops in liquid dropping process |
-
2019
- 2019-09-19 CN CN201910886310.0A patent/CN110604694B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH205127A (en) * | 1938-05-25 | 1939-06-15 | Chem Ind Basel | Drip stopper on vessels. |
| GB789685A (en) * | 1954-06-19 | 1958-01-29 | Basf Ag | Method and apparatus for manufacturing pellets from fusible materials |
| US6851587B1 (en) * | 1999-11-16 | 2005-02-08 | Arizona Board Of Regents | Crucible and spindle for a variable size drop deposition system |
| CN1827081A (en) * | 2005-03-03 | 2006-09-06 | 北京大学深圳医院 | Pill dropping machine for laboratory |
| JP2007075434A (en) * | 2005-09-15 | 2007-03-29 | Minoru Yukishige | Dripper |
| CN101518495A (en) * | 2009-03-26 | 2009-09-02 | 天津大学 | Vibration crushing type pill dropping machine |
| DE102014001247A1 (en) * | 2014-02-03 | 2015-08-06 | Pheneo Gmbh | A dropper for dispensing drops of a fluid, dropper cap system and container with such a dropper or dropper cap system |
| CN109929750A (en) * | 2019-04-11 | 2019-06-25 | 石家庄禾柏生物技术股份有限公司 | A kind of drop formation device and method |
| CN210991872U (en) * | 2019-09-19 | 2020-07-14 | 天津中新药业集团股份有限公司第六中药厂 | Novel water dropper for eliminating liquid drops in liquid dropping process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110604694A (en) | 2019-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105239171B (en) | A kind of linear pattern electrode electrostatic spinning apparatus with pointed tooth | |
| CN110604694B (en) | Dripper capable of eliminating accompanying liquid drops in liquid dripping process | |
| CN210991872U (en) | Novel water dropper for eliminating liquid drops in liquid dropping process | |
| CN103015082B (en) | Spinning head and method for preparing braided tube/polymer composite membrane by using spinning head | |
| CN204275524U (en) | A kind of falling film evaporator | |
| CN201454359U (en) | Liquid spray distributing device | |
| CN201942503U (en) | Filling head for filling wines into wine bottles | |
| CN201722453U (en) | Spinning component | |
| CN109367889A (en) | A kind of multi-pass antidrip suck-back filling head for atmospherical pressure filling machine | |
| CN202929333U (en) | Liquid crystal dripping device | |
| CN101744721B (en) | Drip pan, dripping material storing unit, condensation unit as well as device unit and system formed by thereof | |
| CN203112978U (en) | Novel spinning nozzle of hollow fiber film | |
| CN105214556A (en) | Quantitative mixing arrangement between a kind of different liquids | |
| CN211098921U (en) | Overflow rotary mixing crushing type inlet diffuser | |
| CN202465978U (en) | A pressurization silk flock spinning and spurting assembly | |
| CN209240340U (en) | Water dropper | |
| CN105543985A (en) | Gap-adjustable electrostatic-spinning nozzle and array-type spinning system | |
| CN217021233U (en) | Conical surface type filling nozzle structure | |
| CN208839558U (en) | A kind of dropwise addition equipment of material | |
| CN203602747U (en) | Precise liquid proportioning device of electrolytic copper foil equipment | |
| CN208145498U (en) | A kind of rectifying tower plates preparing polyalphaolefin | |
| CN220310391U (en) | Microcapsule apparatus for producing | |
| CN203050688U (en) | Water dispersion injection device for rock core gas injection displacement experiment | |
| CN206337485U (en) | A kind of foam asphalt generation apparatus | |
| CN215694909U (en) | Full-coverage spraying and atomizing device for producing machine-made sand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 300401 Tianjin city Beichen District North Light Applicant after: Jinyao Darentang Group Co.,Ltd. No 6 Chinese Medicine Factory Applicant after: Hebei University of Technology Address before: 300401 Tianjin city Beichen District North Light Applicant before: No. 6 Traditional Chinese Medicine Factory of Tianjin Zhongxin Pharmaceutical Group Co.,Ltd. Country or region before: China Applicant before: Hebei University of Technology |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |