阅读说明：本技术 一种消除液体滴落过程中伴随液滴的新型滴头 (Novel water dropper for eliminating liquid drops in liquid dropping process ) 是由 王童 刘联胜 忻郝 段润泽 刘君 杨华 田亮 何蕊 赵若霖 于 2019-09-19 设计创作，主要内容包括：本发明公开了一种消除液体滴落过程中伴随液滴的新型滴头,包括滴头本体和滴针,滴头本体上端外部设有与滴盘连接的螺纹,滴头本体内设有药液通道,药液通道上端为药液进口；在药液进口下方设置有凹槽,凹槽的宽度大于药液通道宽度；滴头本体下部末端为滴头的滴嘴；滴针由上下两部分组成,上部分为固定装置,固定装置的长度与滴头本体中的凹槽的长度相对应,固定装置的宽度小于药液通道的直径,固定装置容纳在凹槽内；下部为圆柱形的滴针杆,滴针固定好后,滴针杆突出滴嘴长度1-10mm,滴针杆与药液通道同轴。该滴头结构简单,安装方便；能够有效的消除药液通过滴头滴落过程中产生的伴随液滴,滴丸成型效果好,滴丸产品质量稳定。(The invention discloses a novel dripper for eliminating liquid drops in a liquid dripping process, which comprises a dripper body and a dripping needle, wherein the outer part of the upper end of the dripper body is provided with a thread connected with a dripping disc, 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 tail end of the lower part of the dripper body is provided with a dripping 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 the groove in the dripper 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 needle drip rod, after the needle drip rod is fixed, the length of the needle drip rod protruding out of the drip nozzle is 1-10mm, and the needle drip 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 dropping process of the liquid medicine through the dripper, and has good forming effect and stable quality of the dripping pill products.)

1. The utility model provides an eliminate novel water dropper that liquid drippage in-process accompanies liquid drop, includes the water dropper body and drips the needle, and water dropper body upper end outside is equipped with the screw thread of being connected with the drip tray, this internal liquid medicine passageway that is equipped with of water dropper, and liquid medicine passageway upper end is the 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 tail end of the lower part of the dripper body is provided with a dripping 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 the groove in the dripper 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 needle drip rod, after the needle drip rod is fixed, the length of the needle drip rod protruding out of the drip nozzle is 1-10mm, and the needle drip rod is coaxial with the liquid medicine channel.

2. The novel dripper for eliminating liquid drops accompanying liquid dropping according to claim 1, wherein the height of the fixing means is the distance from the liquid medicine inlet to the bottom surface of the groove.

3. The novel dripper for eliminating liquid accompanying dripping during dripping of liquid according to claim 1, wherein the bottom of the fixing means has a contour conforming to the contour of the bottom surface of the groove.

4. The novel dripper for eliminating liquid drops accompanying liquid dropping according to claim 1, wherein a throat 16 is provided on the dripper body above the liquid medicine inlet, and the diameter of the lower end of the throat is the same as that of the liquid medicine passage.

5. The novel dripper for eliminating liquid drops accompanying liquid dropping according to claim 1, wherein said liquid medicine passage has a length of 12mm and a diameter of 1.5 to 3.0 mm.

6. The novel dripper for eliminating liquid drops accompanying liquid dropping according to claim 1, wherein the fixing means is in the form of a circular or rectangular plate having a thickness of 1 mm.

7. The novel dripper for eliminating liquid drops accompanying liquid drop falling according to claim 1, wherein the length of the projection of the dripping needle rod at the dripping nozzle is 5mm, the diameter of the dripping needle rod is 0.6mm, and the diameter of the liquid medicine passage is 2.6 mm.

Technical Field

The invention belongs to the technical field of pharmaceutical machinery, and particularly relates to a novel dripper for eliminating liquid drops in a liquid dropping process.

Background

The drop pill is a pellet preparation prepared by heating, melting and uniformly mixing a solid or liquid medicament and a proper substance (matrix), dropping into immiscible condensate, and performing contraction and condensation, and is mainly used for oral administration.

The dripper is a key component in the dripping pill forming equipment, the size and the shape of the dripper are directly influenced by the shape and the size of the dripper, the product quality is concerned, and particularly, the dripping pill has influence on the weight difference and the uniformity of the medicine content.

In the existing drop pill preparation process, a liquid medicine channel arranged in a dropping head in drop pill forming equipment adopts an equal-diameter structure, the inner diameter of the liquid medicine channel is equal to the diameter of a drop pill, and dropping is finished through a dropping nozzle by the dead weight of liquid medicine. The liquid medicine is dripped out through the dripper, and a natural dripping method is adopted without adding external conditions, because the liquid medicine is mainly formed under the action of falling gravity, liquid surface tension and internal stress, a large number of liquid lines are formed between liquid drops when the liquid drops are dripped, and the liquid lines are broken in the falling process to generate accompanying liquid drops (because the liquid has viscosity, the liquid lines are generated in the dripping process, and the liquid lines can generate small particles with the particle size far smaller than that of the liquid drops in the breaking process, namely the accompanying liquid drops). In most cases in production, the accompanying droplets are useless for production and even have negative effects on production, for example, the quality of the individual droplets is uneven and difficult to control due to the fact that the accompanying droplets occupy a part of the liquid, and the liquid utilization rate is reduced.

The existing drippers generally generate accompanying liquid drops in the dripping process, which can reduce the production efficiency and even prevent the normal operation of a production system. Therefore, finding a method capable of 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 needing 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 that the defects of the prior art are overcome, and the dripper is simple in structure and convenient to install; can effectively eliminate the accompanying liquid drops generated in the dropping process of the liquid medicine through the dripper, and has good forming effect and stable quality of the dripping pill products.

The technical problem to be solved by the invention is realized by the following technical scheme:

the invention provides a novel dripper for eliminating liquid drops in a liquid dropping process, which comprises a dripper body and a dripping needle, wherein the outer part of the upper end of the dripper body is provided with a thread connected with a drip tray, 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 tail end of the lower part of the dripper body is provided with a dripping 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 the groove in the dripper 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 needle drip rod, after the needle drip rod is fixed, the length of the needle drip rod protruding out of the drip nozzle is 1-10mm, and the needle drip 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.

A necking is arranged on the dropper body above the liquid medicine inlet, and the diameter of the lower end of the necking is the same as that of the liquid medicine channel.

The length of the liquid medicine channel is 12mm, and the diameter of the liquid medicine channel is 1.5-3.0 mm.

The fixing device is in the shape of a circular sheet or a rectangular sheet, and the thickness of the fixing device is 1 mm.

The length of the projection 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 2.6 mm.

Compared with the prior art, the invention has the beneficial effects that:

the method of the invention effectively reduces the generation of the accompanying liquid drops in the dropping process. On the premise of not increasing the manufacturing cost, the liquid drop quality is uniform and easy to control, and the liquid utilization rate is increased.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of the dripper of the present invention.

Fig. 2(a) is a schematic front view of the dropper body of the present invention, and fig. 2(b) is a schematic cross-sectional view of the dropper body of the present invention.

Fig. 3(a) is a front view of the drip needle of the present invention, and fig. 3(b) is a right view of the drip needle of the present invention.

FIG. 4 is a schematic view of the overall experimental structure of the dripper of the present invention in use

FIG. 5(a) is a diagram illustrating the dropping of a conventional dropper during the dropping of liquid polyethylene glycol;

FIG. 5(b) shows the dropping of the dropping head of the present invention when dropping liquid polyethylene glycol.

In the figure, a dripper body 1, a dripper needle 2, a dripper plate 3, a dripper nozzle 11, a liquid medicine channel 12, a liquid medicine outlet 13, a groove 14, a liquid medicine inlet 15, a necking 16, a dripper rod 21 and a fixing device 22 are fixed.

Detailed Description

The invention is further described with reference to the drawings and the specific embodiments in the following description.

Fig. 1 is a cross-sectional view of the overall structure of the dripper of the present invention. As shown in figure 1, the invention provides a dripper, which comprises a dripper body 1 and a dripping 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 a thread for connecting with the drip tray 3, and the thread can realize tight connection and sealing between the dripper body and the drip tray. This internal liquid medicine passageway 12 that is equipped with of dripper, the end of liquid medicine passageway is the nozzle 11, is equipped with recess 14 and throat 16 on dripper body upper portion, and the lower terminal surface and the liquid medicine passageway 12 UNICOM of recess, and the width of recess is greater than liquid medicine passageway width, and needle 2 is dripped to its purpose for the installation is fixed, and throat 16 makes things convenient for the liquid medicine to get into the liquid medicine passageway, reduces the resistance when getting into. As shown in fig. 3(a) and 3(b), the fixing device 22 is arranged on the upper portion of the drip needle, the fixing device can be fixedly installed in the groove of the dripper body, the drip needle 21 is arranged on the lower portion of the drip needle, the drip needle 21 coaxially extends into the liquid medicine channel, and the length of the drip needle 21 is not less than that of the liquid medicine channel, so that liquid in the liquid medicine channel can be conveniently guided. When the dropper is installed in the dropper body, the liquid medicine channel of the dropper body and the dropper needle is coaxially fixed, so that the dropper needle can be vertically placed in the liquid medicine channel, the dropper is also always in a vertical state when in use, and shaking can not be generated, so that the dropper rod and the liquid medicine channel are always in a coaxial state.

In order to ensure the best dripping effect of the liquid medicine through the dripper, the length of the liquid medicine channel 12 in the dripper body is 12mm, the diameter is 1.5-3.0mm, and the diameter is 2.6mm as the best.

In order to facilitate the installation of the drip needle and ensure the stability of the drip needle, the fixing device 22 at the upper part of the drip needle can be selected from a circle or a rectangle, the diameter or the side length can be selected from 4-10mm, and a square is selected, and the side length is 6mm as the best. Therefore, 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 the groove is 1-3mm larger than the diameter or the side length of the fixing device, so that the side length is selected to be 8mm, and the optimal depth is 6 mm.

In order to realize the best effect of eliminating the accompanying liquid drops and ensure that the accompanying liquid drops are as few as possible in the process of preparing the liquid medicine drops, the invention can select the liquid medicine drops with different lengths and diameters aiming at the liquid medicines with different viscosities and surface tensions, the surface tension is 1-70N/m, the viscosity is 100-800cp, the protruding length of the liquid medicine drops at the liquid medicine dropping nozzle of the liquid medicine drop head body is 1-10mm, the diameter of the liquid medicine drops is less than the diameter of the liquid medicine channel and is about 0.1-1.0mm, the length of the liquid medicine drops is about 17mm when the liquid medicine is liquid polyethylene glycol, the protruding length of the liquid medicine drops at the liquid medicine dropping nozzle of the liquid medicine drop head is 5mm, and the diameter of the liquid medicine drops is selected to be 0.6 mm.