A filling nozzle for preventing stringing of a syrup oral liquid

Abstract

The application discloses a filling nozzle for preventing sugar syrup oral liquid from being pulled and dropped, and relates to the technical field of filling. The filling nozzle comprises a discharging cylinder, a piston, a heating jacket and an arc-shaped triangular sheet. The discharging cylinder is a cylindrical cylinder, the axis of which is vertically arranged and the bottom end of which is open. A liquid inlet is arranged on the side of the discharging cylinder and communicates with the inner cavity of the discharging cylinder. The piston is coaxially arranged in the discharging cylinder and is attached to the inner wall of the discharging cylinder. The heating jacket is fixedly arranged outside the discharging cylinder and is used for heating the discharging cylinder. The discharging cylinder is designed as a cylindrical cylinder, and the piston is arranged inside the discharging cylinder and can be attached and moved. After the discharging of the sugar syrup oral liquid is stopped, the piston is lowered to scrape off the sugar syrup oral liquid adhered to the inner wall of the discharging cylinder, thereby improving the discharging precision and avoiding the risk of pulling and dropping the sugar syrup oral liquid due to the adhesion of the sugar syrup oral liquid to the inner wall of the discharging cylinder. The heating jacket is used for heating the sugar syrup oral liquid close to the inner wall of the discharging cylinder, thereby reducing the consistency and viscosity of the sugar syrup oral liquid and further reducing the probability of pulling and dropping the sugar syrup oral liquid.

Description

Technical Field

[0001] This invention relates to the field of filling technology, and in particular to a filling nozzle for oral syrups that prevents stringing and dripping. Background Technology

[0002] Oral liquid preparations are based on traditional Chinese medicine decoctions. The effective components are extracted, flavoring agents, antibacterial agents, and other additives are added, and the preparation is processed using the ampoule filling and sealing process for injections. This results in a sterile or semi-sterile oral liquid formulation. Currently, oral liquid production is automated. The production process includes: extraction of Chinese medicinal materials, purification and concentration of the extract, formulation, filtration, refining, bottle washing, filling and sealing, sterilization, leak detection, labeling, and boxing. During the filling and sealing process, some oral liquid may remain in the filling nozzle after filling, causing leakage, especially with syrup-based oral liquids. During the filling process, oral syrups are relatively viscous and more likely to remain inside the filling nozzle. Furthermore, the viscous nature of the oral liquid can cause it to string, which can drip and affect the processing environment. If it drips onto the filling bottle, it can negatively impact the product's appearance. Some existing systems use movable baffles at the bottom of the filling nozzle to catch dripping liquid, which can help prevent this risk, but it doesn't completely eliminate the possibility of dripping. Additionally, the baffles need to be cleaned regularly to meet environmental standards, and even when a large amount of liquid accumulates on the baffle, there is still a risk of it slipping and affecting the filling environment.

[0003] Therefore, it is necessary to invent a filling nozzle that prevents stringing and dripping of oral syrups to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a filling nozzle for oral syrups that prevents stringing and dripping, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a filling nozzle for oral syrups that prevents stringing and dripping, comprising:

[0006] The feeding cylinder is a cylindrical tube with a vertical axis and an open bottom. It has a liquid inlet on the side that communicates with its inner cavity.

[0007] The piston is coaxially mounted inside the feed cylinder and fits against the inner wall of the feed cylinder;

[0008] A heating jacket is fixedly installed on the outside of the feeding cylinder for heating the inside of the feeding cylinder;

[0009] Multiple arc-shaped triangular pieces are provided at the bottom of the feed cylinder, and their tops are hinged to the bottom of the feed cylinder. The multiple arc-shaped triangular pieces are arranged in a circular array with the axis of the feed cylinder as the center. When the arc-shaped triangular pieces are rotated inward to close, the sides of two adjacent arc-shaped triangular pieces are fitted and sealed, and the multiple arc-shaped triangular pieces have a conical structure with a sealed bottom.

[0010] The driving mechanism includes a piston driving mechanism and a wire drawing driving mechanism, which are installed on the top of the blanking cylinder and are used for driving the piston to move along the axis direction and the rotation of the plurality of arc-shaped triangular pieces respectively, and the output end of the wire drawing driving mechanism is connected with a wire drawing, the wire drawing penetrates the blanking cylinder to the inside and is connected with the inner wall of the plurality of arc-shaped triangular pieces, and is used for synchronously driving the rotation of the plurality of arc-shaped triangular pieces.

[0011] Optionally, the piston driving mechanism adopts a double-barrel cylinder, is fixedly installed on the top of the blanking cylinder, the axis is parallel to the axis of the blanking cylinder, and the output end penetrates the top wall of the blanking cylinder and is fixedly connected with the piston.

[0012] Optionally, the wire drawing driving mechanism includes a single-barrel cylinder and a guide box, two limiting rotating wheels are rotatably installed in the guide box, the wire drawing is fixedly connected with the output end of the single-barrel cylinder, penetrates the guide box in sequence from the top of one limiting rotating wheel and the top of the other limiting rotating wheel and vertically penetrates the guide box downward.

[0013] Optionally, the wire drawing includes a main wire and branch wires, the branch wires are provided as a plurality of wires and are consistent with the number of the arc-shaped triangular pieces, the main wire is connected with the output end of the single-barrel cylinder, extends to the inside of the blanking cylinder and is coaxially arranged with the blanking cylinder, one end of the plurality of branch wires is fixedly connected with the bottom end of the main wire, and the other end is fixedly connected with the inner wall of the plurality of arc-shaped triangular pieces at the same position.

[0014] Optionally, a through hole is formed in the middle part of the piston along the axis, and is used for the penetration of the main wire.

[0015] Optionally, a storage space is left in the inner upper part of the communication part of the blanking cylinder and the liquid inlet, and is used for placing the piston.

[0016] Optionally, a plurality of air permeation holes are formed in the top of the blanking cylinder and are communicated with the inner cavity of the blanking cylinder, and are used for the circulation of air during the movement of the piston.

[0017] Optionally, the heating sleeve is located at the lower part of the liquid inlet, and the inside is provided with a spiral partition plate, so that the heating sleeve and the blanking cylinder are divided into a spiral channel.

[0018] Optionally, the top of the heating sleeve is connected with a vertical upward air inlet pipe and an air outlet pipe, the bottom end of the air inlet pipe is communicated with the upper part of the spiral channel, and the bottom end of the air outlet pipe is communicated with the lower part of the spiral channel.

[0019] The technical effects and advantages of the present application are as follows:

[0020] 1. The blanking cylinder adopts a cylindrical cylinder design, and a movable piston is arranged inside, which can adhere to the syrup oral liquid after the syrup oral liquid stops blanking, and scrape off the syrup oral liquid adhered to the inner wall of the blanking cylinder, thereby improving the blanking precision and avoiding the risk of syrup oral liquid dripping caused by the adhesion of syrup oral liquid to the inner wall of the blanking cylinder;

[0021] 2. The blanking cylinder is provided with a heating jacket outside, which can heat and warm the syrup oral liquid close to the inner wall of the blanking cylinder, thereby reducing the consistency and viscosity of the syrup oral liquid and further reducing the probability of syrup oral liquid dripping;

[0022] 3. The bottom of the blanking cylinder is provided with a plurality of arc-shaped triangular pieces which can be opened or closed, the opening of the arc-shaped triangular pieces does not affect the blanking and filling of the blanking cylinder, and the inward closing of the arc-shaped triangular pieces can form a sealed conical structure, thereby completely avoiding the risk of syrup oral liquid dripping; and the design of the arc-shaped triangular pieces maximizes the occupation area of the bottom of the filling nozzle in the radial direction, and can extend into the filling bottle, which is simple, small and practical in structure;

[0023] 4. The driving mechanism matched with the arc-shaped triangular pieces adopts a wire drawing structure and is arranged inside the blanking cylinder, so as not to occupy the area below the blanking cylinder, not to affect the filling in the blanking cylinder or even in the filling bottle, and not to affect the circulation of the liquid in the blanking cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure schematic view of the blanking state of the present application.

[0025] Figure 2 It is a structure schematic view of the closed state of the present application.

[0026] Figure 3 It is a sectional view structure schematic view of the blanking cylinder of the present application.

[0027] Figure 4 It is a sectional view structure schematic view of the upper part of the present application.

[0028] Figure 5 It is a sectional view structure schematic view of the lower part of the present application.

[0029] Figure 6 It is a sectional view structure schematic view of the wire drawing driving mechanism of the present application.

[0030] In the figure: 1, blanking cylinder; 2, piston; 3, heating jacket; 4, arc-shaped triangular piece; 5, liquid inlet interface; 6, wire drawing; 601, main line; 602, branch line; 7, piston driving mechanism; 8, wire drawing driving mechanism; 801, single-rod air cylinder; 802, guide box; 9, limiting rotating wheel; 10, through hole; 11, spiral partition; 12, air inlet pipe; 13, air outlet pipe; 14, air vent hole. DETAILED DESCRIPTION

[0031] Clearly, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In the present application, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixation" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected; it can be mechanically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0035] The present application provides a filling nozzle for preventing sugar syrup oral liquid from being pulled and dripping, as shown in Figures 1-6 The filling nozzle for preventing sugar syrup oral liquid from being pulled and dripping comprises:

[0036] The blanking cylinder 1 is a cylindrical cylinder, the axis is vertically arranged and the bottom end is open, which is used for discharging sugar syrup oral liquid, and a liquid inlet interface 5 is arranged on the side for communication with the inner cavity, which is used for connecting with a valve and a sugar syrup oral liquid source. The liquid inlet interface 5 can be connected by bolt joint or flange joint;

[0037] The inside of the blanking cylinder 1 is coaxially provided with a piston 2 attached to the inner wall of the blanking cylinder 1, and the top of the blanking cylinder 1 is fixedly provided with a piston driving mechanism 7, which is a double-bar gas cylinder. The output end of the double-bar gas cylinder penetrates the top of the blanking cylinder 1 and is fixedly connected to the top of the piston 2. The double-bar gas cylinder is connected to the piston 2 at the same axis of the piston 2 and is symmetrically centered on the piston 2. The top of the blanking cylinder 1 is provided with a plurality of air vents 14 communicating with the inner cavity of the blanking cylinder 1 for air circulation during the movement of the piston 2 to avoid affecting the movement of the piston 2 under the action of air pressure. The upper part of the inner cavity of the blanking cylinder 1 communicating with the liquid inlet 5 is provided with a storage space for placing the piston 2 in the initial state. When the syrup oral liquid is filled, the piston 2 is entirely located in the storage space and does not block the liquid inlet 5, avoiding the accumulation of syrup oral liquid in the area between the piston 2 and the top of the blanking cylinder 1 during the filling of the syrup oral liquid. The piston 2 is arranged to scrape off the syrup oral liquid adhering to the inner wall of the blanking cylinder 1 after the single filling of the syrup oral liquid is completed, thereby improving the filling accuracy and avoiding the risk of stringing and dripping caused by the adhesion of a large amount of syrup oral liquid to the inner wall of the blanking cylinder 1. When the piston 2 descends to the bottom of the blanking cylinder 1, it is pulled up to the initial state by the piston driving mechanism 7 to wait for the next filling;

[0038] The outer wall of the blanking cylinder 1 is fixedly provided with a heating jacket 3, which forms a sealed heating cavity with the blanking cylinder 1. The inside of the heating jacket 3 is provided with a spiral partition 11, which divides the heating cavity between the heating jacket 3 and the blanking cylinder 1 into a spiral channel. The top of the heating jacket 3 is connected with a vertical upward air inlet pipe 12 and an air outlet pipe 13. The bottom end of the air inlet pipe 12 communicates with the upper part of the spiral channel for introducing hot air into the spiral channel from an external hot air source. The bottom end of the air outlet pipe 13 communicates with the lower part of the spiral channel for discharging hot air after heating the blanking cylinder 1, forming a circulating flow state. The blanking cylinder 1 is heated by hot air to raise the temperature of the syrup oral liquid near the blanking cylinder 1, thereby reducing the viscosity and avoiding the accumulation of the solution on the inner wall of the blanking cylinder 1. The heating jacket 3 is located below the liquid inlet 5 and only heats the area of the liquid inlet 5 that mainly contacts the syrup oral liquid, thereby saving the material of the heating jacket 3 and further reducing the floor area occupied by the filling nozzle;

[0039] The bottom end of the discharging cylinder 1 is hinged with a plurality of arc-shaped triangular pieces 4 along the peripheral surface thereof. The arc-shaped triangular pieces 4 are bent from isosceles triangles to have an arc structure. The bottom edge of the arc-shaped triangular piece 4 is hinged with the bottom of the outer wall of the discharging cylinder 1, and the tip end thereof faces downward. The plurality of arc-shaped triangular pieces 4 are arranged in a ring array with the axis of the discharging cylinder 1 as the center. When the arc-shaped triangular pieces 4 are closed by rotating inward, the plurality of arc-shaped triangular pieces 4 form a conical structure in a sealed state. The side edges of the adjacent two arc-shaped triangular pieces 4 are sealed. The bottom end of the plurality of arc-shaped triangular pieces 4 is sealed to have a tip end structure. The conical structure in the sealed state is closed after the single syrup oral liquid is filled and the piston 2 is lowered and scraped. The bottom of the discharging cylinder 1 is completely sealed to prevent the syrup oral liquid from being pulled out and drawn after being filled.

[0040] The top end of the discharging cylinder 1 is fixedly installed with a wire pulling driving mechanism 8. The wire pulling driving mechanism 8 includes a single-rod air cylinder 801 and a guide box 802. Two limiting rotating wheels 9 are rotatably installed in the guide box 802. The single-rod air cylinder 801 is axially vertical and fixedly installed on one end of the upper surface of the guide box 802. The output end of the single-rod air cylinder 801 is connected with a wire 6. The wire 6 penetrates the guide box 802, passes through the top of one limiting rotating wheel 9 and the top of another limiting rotating wheel 9 in sequence, and vertically penetrates the guide box 802 downward. A gap is left between the piston driving mechanism 7 and the top end of the discharging cylinder 1. The guide box 802 extends into the gap and is fixed with the top end of the discharging cylinder 1. The wire 6 penetrates the discharging cylinder 1 and extends into the interior of the discharging cylinder 1, and is coaxially arranged with the discharging cylinder 1. A through hole 10 is formed in the middle of the piston 2 along the axis, for the penetration of the main wire 601. The wire 6 includes the main wire 601 and branch wires 602. The branch wires 602 are arranged as a plurality of wires and are consistent in number with the arc-shaped triangular pieces 4. The main wire 601 is connected with the output end of the single-rod air cylinder 801, extends into the interior of the discharging cylinder 1 and is coaxially arranged with the discharging cylinder 1. One end of the plurality of branch wires 602 is fixedly connected with the bottom end of the main wire 601, and the other end is fixedly connected with the inner wall lower part of the plurality of arc-shaped triangular pieces 4 at the same position. The single-rod air cylinder 801 extends and retracts to pull or lower the wire 6, so as to realize the inward rotation and closing or opening of the plurality of arc-shaped triangular pieces 4. The arrangement of the wire pulling driving mechanism 8 and the cooperation with the wire 6 realize the synchronous operation of the plurality of arc-shaped triangular pieces 4. The wire 6 is located in the interior of the discharging cylinder 1, does not occupy the space outside the discharging cylinder 1, does not increase the land area outside the discharging cylinder 1, and does not affect the normal filling of the syrup oral liquid.

[0041] The installation method of the present application: the filling nozzle is fixedly installed on the filling equipment, a lifting mechanism is arranged on the filling equipment to drive the filling nozzle to lift, which is used for even filling in the bottle, the liquid inlet 5 is connected with an electromagnetic valve and a flow valve, and the liquid inlet is connected with a syrup oral liquid source through a liquid pumping pump, the double-lever air cylinder and the single-lever air cylinder 801 are both connected with an air pump, and the air inlet pipe 12 and the air outlet pipe 13 are connected with a hot air generator, so that the filling nozzle can be used in an automatic filling assembly line.

[0042] The working principle of the present application: the hot air is continuously circulated in the heating jacket 3, or the hot air is introduced into the heating jacket 3 when the piston 2 is ready to descend after stopping filling, the hot air is stopped after the piston 2 is lifted, the arc-shaped triangular sheet 4 is in a closed state in the initial state, the piston 2 is located at the top of the feeding cylinder 1, during filling, the filling nozzle is lowered even into the bottle, the wire pulling driving mechanism 8 drives the arc-shaped triangular sheet 4 to open, the syrup oral liquid is introduced into the feeding cylinder 1 through the liquid inlet 5 to fill, the filling is stopped after the quantitative filling is completed, the piston driving mechanism 7 drives the piston 2 to descend and then to lift after scraping the syrup oral liquid adhered to the inner wall of the feeding cylinder 1, the wire pulling driving mechanism 8 drives the arc-shaped triangular sheet 4 to close and seal, the filling nozzle is lifted to complete single filling.

[0043] Finally, it should be noted that: the above is only the preferred embodiment of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A filling nozzle for preventing sugar syrup oral liquid from stringing and dripping, characterized in that, The application relates to a material discharging device. The material discharging device comprises a discharging cylinder (1) in the shape of a cylindrical cylinder, the axis of which is vertically arranged and the bottom end of which is open, and a liquid inlet (5) is arranged on the side of the discharging cylinder (1) and communicates with the inner cavity of the discharging cylinder (1); a piston (2) is coaxially arranged in the inner part of the discharging cylinder (1) and is attached to the inner wall of the discharging cylinder (1); a heating jacket (3) is fixedly arranged on the outer part of the discharging cylinder (1) and is used for heating the inner part of the discharging cylinder (1); a plurality of arc-shaped triangular pieces (4) are arranged on the bottom of the discharging cylinder (1) and are hinged to the bottom of the discharging cylinder (1), the arc-shaped triangular pieces (4) are arranged in a ring array with the axis of the discharging cylinder (1) as the center, the side edges of two adjacent arc-shaped triangular pieces (4) are attached and sealed when the arc-shaped triangular pieces (4) are turned inward and closed, and the plurality of arc-shaped triangular pieces (4) are arranged in a conical structure with the bottom being sealed; a driving mechanism, which comprises a piston driving mechanism (7) and a wire drawing driving mechanism (8), is arranged on the top of the discharging cylinder (1) and is used for driving the piston (2) to move along the axis direction and driving the plurality of arc-shaped triangular pieces (4) to rotate, respectively, the output end of the wire drawing driving mechanism (8) is connected with a wire (6), the wire (6) penetrates the discharging cylinder (1) to the inner part of the discharging cylinder (1) and is connected with the inner wall of the plurality of arc-shaped triangular pieces (4) and is used for synchronously driving the plurality of arc-shaped triangular pieces (4) to rotate. The piston driving mechanism (7) is a double-rod air cylinder, is fixedly arranged on the top of the discharging cylinder (1), the axis of the piston driving mechanism (7) is parallel to the axis of the discharging cylinder (1), the output end of the piston driving mechanism (7) penetrates the top wall of the discharging cylinder (1) and is fixedly connected with the piston (2). The wire drawing driving mechanism (8) comprises a single-rod air cylinder (801) and a guide box (802), two limiting rotating wheels (9) are rotatably arranged in the inner part of the guide box (802), the wire (6) is fixedly connected with the output end of the single-rod air cylinder (801) and penetrates the guide box (802) and passes through the top of one limiting rotating wheel (9) and the top of the other limiting rotating wheel (9) in sequence and then vertically penetrates the guide box (802) downward. The wire (6) comprises a main wire (601) and a plurality of branch wires (602), the plurality of branch wires (602) are arranged in a number corresponding to the number of the arc-shaped triangular pieces (4), the main wire (601) is connected with the output end of the single-rod air cylinder (801), extends to the inner part of the discharging cylinder (1) and is coaxially arranged with the discharging cylinder (1), one end of the plurality of branch wires (602) is fixedly connected with the bottom end of the main wire (601), and the other end is fixedly connected with the inner wall of the plurality of arc-shaped triangular pieces (4) at the same position. A through hole (10) is arranged in the middle part of the piston (2) along the axis and is used for the penetration of the main wire (601).

2. The filling nozzle for preventing sugar syrup oral liquid from dripping and stringing according to claim 1, characterized in that: A storage space is reserved in the inner upper part of the communication part between the discharging cylinder (1) and the liquid inlet (5) and is used for placing the piston (2).

3. The filling nozzle for preventing sugar syrup oral liquid from dripping and drawing as claimed in claim 1, characterized in that: A plurality of air vents (14) are arranged on the top of the discharging cylinder (1) and communicate with the inner cavity of the discharging cylinder (1) and are used for the air circulation of the piston (2).

4. The filling nozzle for preventing sugar syrup oral liquid from dripping and drawing as claimed in claim 3, characterized in that: The heating jacket (3) is arranged below the liquid inlet (5) and is provided with a spiral partition (11) in the inner part and divides the space between the heating jacket (3) and the discharging cylinder (1) into a spiral channel.

5. The filling nozzle for preventing the sugar syrup oral liquid from dripping and drawing a line according to claim 4, characterized in that: ​ 6. The filling nozzle for preventing sugar syrup oral liquid from dripping and drawing as claimed in claim 1, wherein: ​ 7. The filling nozzle for preventing the sugar syrup oral liquid from dripping and drawing a line according to claim 1, characterized in that: ​ 8. The filling nozzle for preventing the sugar syrup oral liquid from dripping and drawing a line according to claim 1, characterized in that: ​ 9. The filling nozzle for preventing the sugar syrup oral liquid from dripping and drawing a line according to claim 8, characterized in that: The top of the heating jacket (3) is connected with a vertical upward air inlet pipe (12) and an air outlet pipe (13), the bottom end of the air inlet pipe (12) communicates with the upper part of the spiral channel, and the bottom end of the air outlet pipe (13) communicates with the lower part of the spiral channel.

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