Filling device for polyvinyl alcohol eye drop production

By designing a filling assembly and transmission assembly that combines a cylinder-driven piston rod and plunger, the quantitative filling problem of polyvinyl alcohol eye drops filling device was solved, achieving a stable and uniform filling effect, and improving product quality and market competitiveness.

CN223468182UActive Publication Date: 2025-10-24NANJING RUINIAN BEST PHARM CO LTD
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Patent Information

Application Number
CN202422877152.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-10-24
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

Existing polyvinyl alcohol eye drop filling equipment cannot achieve quantitative filling, resulting in waste of medicine, insufficient or uneven composition, affecting the efficacy and appearance consistency of the product, increasing production costs and endangering user safety.

Method used

The filling assembly, which uses a combination of cylinder-driven piston rod and plunger, combined with a one-way valve and limit rod/limiting block design, achieves quantitative filling; and the transmission assembly drives the orderly conveying of packaging bottles, ensuring the stability and uniformity of filling.

Benefits of technology

This technology enables quantitative filling of polyvinyl alcohol eye drops, improving production efficiency, ensuring product quality and safety, reducing production costs, and enhancing market competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a filling device for polyvinyl alcohol eye drop production, which comprises a base, an L-shaped seat is fixedly mounted on the rear side of the base, a console is fixedly mounted at the top of the L-shaped seat, a filling assembly is arranged at the top of the L-shaped seat, the filling assembly comprises an air cylinder, and the air cylinder is connected with the L-shaped seat through the air cylinder. The air cylinder drives the piston rod and the plunger to move leftwards, the plunger is tightly attached to the inner wall of the connecting pipe, negative pressure is formed in the connecting pipe when the piston rod and the plunger move leftwards, the one-way valve on the upper portion is affected by the negative pressure at the moment, the valve is pulled downwards, and therefore polyvinyl alcohol eye drops flow into the conveying pipe and the connecting pipe; at the moment, the air cylinder is started to drive the piston rod and the connecting pipe to move forwards, air and liquid are compressed and pushed forwards, the lower one-way valve is affected by extrusion of air in the connecting pipe, the valve is opened, and the eye drops penetrate through the lower one-way valve to be discharged out of the filling pipe.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of filling devices for polyvinyl alcohol eye drops production, belong to filling device technical field. BACKGROUND

[0002] Polyvinyl alcohol eye drops is a kind of ophthalmic drug commonly used to relieve eye dryness, irritation and discomfort. Its main component polyvinyl alcohol is a water-soluble polymer compound, with strong moisturizing effect, can form a protective film on the ocular surface, effectively reduce the evaporation of moisture in the eye, relieve dry eye symptoms, when polyvinyl alcohol eye drops is processed, it is necessary to use the filling equipment to fill the eye drops into the packaging bottle.

[0003] The authorized announcement number (CN110901973A) discloses a kind of filling devices for eye drop production and processing, in view of the problem that the existing filling device is not convenient to operate, the following scheme is proposed, including support base, four support pads and liquid storage tank body, four The support pads are respectively installed at the bottom four corners outer wall of support base by bolt, the outer wall of the top side of support base is fixedly installed with four support columns distributed in rectangular array. In the present application, the filling device for eye drop production and processing is provided with placing plate and limiting pressing plate on the support base, and the placing groove is arranged on the placing plate, and the limiting hole is arranged on the limiting pressing plate. The filling bottle to be filled can be placed in the placing groove, and then the limiting pressing plate is lowered by the second electric telescopic rod, so that the top of the filling bottle is inserted into the limiting hole. The limiting hole can effectively fix the filling bottle, and the stability of filling is improved.

[0004] However, the above-mentioned technology cannot realize quantitative filling during use, and too much liquid medicine will cause waste and increase production cost. Insufficient filling may result in insufficient active ingredients in each bottle of liquid medicine, affecting the curative effect of the product, and even may endanger the safety of the user. In addition, uneven filling amount may affect the appearance consistency of the product, resulting in non-standard packaging, affecting market sales and consumer trust.

[0005] Therefore, a kind of filling device for polyvinyl alcohol eye drops production is proposed. UTILITY MODEL CONTENT

[0006] Therefore, the utility model provides a kind of filling device for polyvinyl alcohol eye drops production to solve or alleviate the technical problems existing in the prior art, at least to provide a kind of beneficial choice.

[0007] The technical scheme of the utility model is achieved as follows: a filling device for polyvinyl alcohol eye drop production, including base, the rear side fixed mounting of base has L type seat, the top fixed mounting of L type seat has control platform, the top of L type seat is provided with filling assembly, the filling assembly includes cylinder, the top fixed mounting of L type seat has L type frame, the inboard of L type frame is fixedly connected with cylinder, the top of L type seat is fixedly installed with cylinder, the right side fixed connection of cylinder has piston rod, the right side fixed connection of piston rod has plug post, the right side fixed mounting of L type frame has connecting pipe, the inboard of connecting pipe is extended to piston rod and plug post, and plug post is in close contact with the inner wall of connecting pipe.

[0008] Further preferably, the right side of the connecting pipe is communicated with a feed pipe, the top of the feed pipe is fixedly installed with a feed hopper, the upper and lower sides of the feed pipe cavity are both fixedly installed with a one-way valve, and the bottom of the feed pipe is communicated with a filling pipe.

[0009] Further preferably, the top of the L type seat is fixedly installed with a stop block, the left side of the cylinder is movably connected with a limiting rod, the left side of the limiting rod is fixedly installed with a limiting block, and the limiting block is slidably connected to the inboard of the stop block.

[0010] Further preferably, the top of the base is provided with a transmission assembly, the transmission assembly includes a baffle, the baffle is fixedly installed on the front and rear sides of the top of the base, the front side of the baffle is movably connected with a half moon gear, the front side of the baffle is movably connected with a transmission gear, and the half moon gear and the transmission gear are meshingly connected.

[0011] Further preferably, the front side of the transmission gear is fixedly connected with a driving pulley, the front side of the baffle is movably connected with a plurality of equidistantly distributed driven pulleys, and the driving pulley and the plurality of driven pulleys are drivingly connected through a transmission belt.

[0012] Further preferably, the inboard of the baffle is movably connected with a transmission wheel, the driving pulley and the driven pulley are both fixedly connected with the transmission wheel, and the surface of the transmission wheel is drivingly connected with a conveyor belt.

[0013] Further preferably, the front side of the baffle is fixedly installed with a U-shaped plate, the front side of the U-shaped plate is fixedly installed with a motor, and the output end of the motor is fixedly connected with the half moon gear.

[0014] The utility model discloses an embodiment has the following advantages due to adopting the above technical scheme:

[0015] The utility model discloses a through the setting of filling assembly, the piston rod and the plug post are moved to left side by cylinder, because the plug post and the inner wall of connecting pipe closely fit, the piston rod and the plug post move to left side and can form the negative pressure in the connecting pipe, the upper one -way valve is affected by the negative pressure and is pulled down to the valve at this time, thereby makes polyvinyl alcohol eye drop flow into the inside of delivery pipe and connecting pipe, at this time, start the cylinder, drive piston rod and connecting pipe and move forward, the air and liquid are compressed and push forward, the lower one -way valve is affected by the air extrusion in the connecting pipe, can open the valve, makes the eye drop to discharge by filling pipe through the lower one -way valve, and because the piston rod and the plug post move forward and backward and can drive the limit rod and the limit block to move, at this time, two stop blocks limit the limit rod and the limit block, avoid the piston rod and the plug post too much or too little movement, from its quantitative jar effect.

[0016] The utility model discloses a through the setting of transmission assembly, the output of motor drives half moon gear to rotate, and half moon gear rotates and drives transmission gear to rotate through the effect of tooth meshing simultaneously, and transmission gear rotates and drives driving pulley to rotate simultaneously, and driving pulley rotates and drives a plurality of driven pulleys to rotate through transmission connection simultaneously, and a plurality of driven pulleys and driving pulley rotate and drive transmission wheel to rotate simultaneously, and transmission wheel rotates and drives conveyer belt to rotate simultaneously, and the packing bottle is sent to the bottom of filling pipe in order to the bottom of filling pipe, and make filling more orderly.

[0017] The above summary is intended to illustrate only and is not intended to limit the application in any way. Further aspects, embodiments and features of the application will be apparent from a review of the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0019] Figure 1 It is the first three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is the second three-dimensional structure schematic view of the utility model;

[0021] Figure 3 It is the filling assembly structure schematic view of the utility model;

[0022] Figure 4 It is the transmission assembly structure schematic view of the utility model;

[0023] Figure 5 The utility model discloses a transmission assembly internal structure schematic view.

[0024] Fig. 1, base 2, L type seat 3, filling assembly 301, cylinder 302, L type frame 303, piston rod 304, plug post 305, connecting pipe 306, check valve 307, feed pipe 308, filling pipe 309, limit block 310, stop block 311, limit rod 4, transmission assembly 401, baffle 402, half moon gear 403, transmission gear 404, transmission wheel 405, conveyer belt 406, U type board 407, motor 408, driven pulley 409, driving pulley 5, feed hopper 6, control cabinet. DETAILED DESCRIPTION

[0025] Hereinafter, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0026] The embodiments of the utility model will be described below in detail in combination with the drawings.

[0027] Embodiment 1

[0028] As Figures 1-5 shown, the utility model discloses a kind of filling device for polyvinyl alcohol eye drop production, including base 1, the rear side of base 1 is fixedly installed with L type seat 2, L type seat 2 top is fixedly installed with control cabinet 6, L type seat 2 top is provided with filling assembly 3, filling assembly 3 includes cylinder 301, L type seat 2 top is fixedly installed with L type frame 302, cylinder 301 is fixedly connected in the inner side of L type frame 302, cylinder 301 is fixedly installed in the top of L type seat 2, the right side of cylinder 301 is fixedly connected with piston rod 303, the right side of piston rod 303 is fixedly connected with plug post 304, the right side of L type frame 302 is fixedly installed with connecting pipe 305, piston rod 303 and plug post 304 extend to the inner side of connecting pipe 305, and plug post 304 and connecting pipe 305 inner wall are in conformance, the right side of connecting pipe 305 is communicated with feed pipe 307, the top of feed pipe 307 is fixedly installed with feed hopper 5, one-way valve 306 is fixedly installed in the upper and lower sides of feed pipe 307 inner chamber, filling pipe 308 is communicated in the bottom of feed pipe 307, L type seat 2 top is fixedly installed with stop block 310, the left side of cylinder 301 is movably connected with limit rod 311, limit rod 311 left side is fixedly installed with limit block 309, and limit block 309 is slidably connected in the inner side of stop block 310.

[0029] Through the setting of the filling component 3, the cylinder 301 drives the piston rod 303 and the plug 304 to move to the left. Since the plug 304 is tightly fitted with the inner wall of the connecting tube 305, when the piston rod 303 and the plug 304 move to the left, a negative pressure is formed in the connecting tube 305. At this time, the one-way valve 306 above is affected by the negative pressure and the valve is pulled downward, so that the polyvinyl alcohol eye drops flow into the feeding tube 307 and the connecting tube 305. At this time, the cylinder 301 is started, driving the piston rod 303 and the connecting tube 305 to move forward. The movement compresses the air and liquid and pushes them forward. The one-way valve 306 below is affected by the air squeeze inside the connecting tube 305, and the valve will open, allowing the eye drops to pass through the one-way valve 306 below and be discharged from the filling tube 308. At the same time, as the piston rod 303 and the plug 304 move back and forth, the limit rod 311 and the limit block 309 will be driven to move. At this time, the two blocks 310 limit the limit rod 311 and the limit block 309 to prevent the piston rod 303 and the plug 304 from moving too much or too little, thereby achieving a quantitative canning effect.

[0030] Example 2

[0031] like Figures 1-5 As shown, in one embodiment, a transmission assembly 4 is provided on the top of the base 1, and the transmission assembly 4 includes a baffle 401, which is fixedly installed on the front and rear sides of the top of the base 1, and the front side of the baffle 401 is movably connected to a half-moon gear 402, and the front side of the baffle 401 is movably connected to a transmission gear 403, the half-moon gear 402 and the transmission gear 403 are meshed and connected, the front side of the transmission gear 403 is fixedly connected to a driving pulley 409, and the front side of the baffle 401 is movably connected to a plurality of equally spaced driven pulleys. Pulley 408, the driving pulley 409 and multiple driven pulleys 408 are connected by a transmission belt. The inner side of the baffle 401 is movably connected to the transmission wheel 404. The driving pulley 409 and the driven pulley 408 are fixedly connected to the transmission wheel 404. The surface of the transmission wheel 404 is connected to the conveyor belt 405. A U-shaped plate 406 is fixedly installed on the front side of the baffle 401. A motor 407 is fixedly installed on the front side of the U-shaped plate 406. The output end of the motor 407 is fixedly connected to the half-moon gear 402.

[0032] Through the arrangement of the transmission assembly 4, the output end of the motor 407 drives the half-moon gear 402 to rotate. While the half-moon gear 402 rotates, it drives the transmission gear 403 to rotate through the action of tooth meshing. While the transmission gear 403 rotates, it drives the driving pulley 409 to rotate. While the driving pulley 409 rotates, it drives multiple driven pulleys 408 to rotate through a transmission connection. While the multiple driven pulleys 408 and the driving pulley 409 rotate, they drive the transmission pulley 404 to rotate. While the transmission pulley 404 rotates, it drives the conveyor belt 405 to rotate, and the packaging bottles are sequentially conveyed forward to the bottom of the filling tube 308, making the filling more orderly.

[0033] After the bottle 308 is opened, the bottle 309 is opened, and the bottle 301 is opened, and the bottle 308 is opened, and the bottle 309 is opened, and the bottle 309 is opened, and the bottle 309 is opened. When the bottle is filled, the bottle 303 is placed on the conveyor belt 405 and the bottle is fed to the conveyor 405. When the bottle is filled, the bottle 303 is fed to the conveyor 405 and the bottle is fed to the conveyor 405. When the bottle is filled, the bottle 303 is fed to the conveyor 405 and the bottle is fed to the conveyor 405. When the bottle is filled, the bottle 303 is fed to the conveyor 405 and the bottle is fed to the conveyor 405. When the bottle is filled, the bottle 303 is fed to the conveyor 405 and the bottle is fed to the conveyor 405. When the bottle is filled, the bottle 303 is fed to the conveyor 405 and the bottle is fed to the conveyor 405. When the bottle is filled, the bottle 303 is fed to the conveyor 405 and the bottle is fed to the conveyor 405.

[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A filling device for producing polyvinyl alcohol eye drop, comprising a base (1), characterized in that: The rear side of the base (1) is fixedly installed with an L-shaped seat (2), the top of the L-shaped seat (2) is fixedly installed with a control console (6), the top of the L-shaped seat (2) is provided with a filling assembly (3), the filling assembly (3) comprises a gas cylinder (301), the top of the L-shaped seat (2) is fixedly installed with an L-shaped frame (302), the gas cylinder (301) is fixedly connected to the inner side of the L-shaped frame (302), the gas cylinder (301) is fixedly installed on the top of the L-shaped seat (2), the right side of the gas cylinder (301) is fixedly connected with a piston rod (303), the right side of the piston rod (303) is fixedly connected with a plug column (304), the right side of the L-shaped frame (302) is fixedly installed with a connecting pipe (305), the piston rod (303) and the plug column (304) extend to the inner side of the connecting pipe (305), and the plug column (304) is attached to the inner wall of the connecting pipe (305).

2. A filling device for the production of polyvinyl alcohol eye drops according to claim 1, characterized in that: The right side of the connecting pipe (305) is communicated with a material conveying pipe (307), the top of the material conveying pipe (307) is fixedly installed with a feeding hopper (5), the upper and lower sides of the inner cavity of the material conveying pipe (307) are fixedly installed with one-way valves (306), and the bottom of the material conveying pipe (307) is communicated with a filling pipe (308).

3. The filling device for producing polyvinyl alcohol eye drop according to claim 1, characterized in that: The top of the L-shaped seat (2) is fixedly installed with a stop block (310), the left side of the gas cylinder (301) is movably connected with a limiting rod (311), the left side of the limiting rod (311) is fixedly installed with a limiting block (309), and the limiting block (309) is slidably connected to the inner side of the stop block (310).

4. The filling device for producing polyvinyl alcohol eye drop according to claim 1, characterized in that: The top of the base (1) is provided with a transmission assembly (4), the transmission assembly (4) comprises a baffle (401), the baffle (401) is fixedly installed on the front and rear sides of the top of the base (1), the front side of the baffle (401) is movably connected with a half moon gear (402), the front side of the baffle (401) is movably connected with a transmission gear (403), and the half moon gear (402) and the transmission gear (403) are in meshing connection.

5. The filling device for producing polyvinyl alcohol eye drop according to claim 4, characterized in that: The front side of the transmission gear (403) is fixedly connected with a driving pulley (409), the front side of the baffle (401) is movably connected with a plurality of driven pulleys (408) which are equidistantly distributed, and the driving pulley (409) and the plurality of driven pulleys (408) are in transmission connection through a transmission belt.

6. The filling device for producing polyvinyl alcohol eye drop according to claim 5, characterized in that: The inner side of the baffle (401) is movably connected with a transmission wheel (404), the driving pulley (409) and the driven pulley (408) are fixedly connected with the transmission wheel (404), and the surface of the transmission wheel (404) is in transmission connection with a conveying belt (405).

7. The filling device for producing polyvinyl alcohol eye drop according to claim 6, characterized in that: The front side of the baffle (401) is fixedly installed with a U-shaped plate (406), the front side of the U-shaped plate (406) is fixedly installed with a motor (407), and the output end of the motor (407) is fixedly connected with the half moon gear (402).

Citation Information

Patent Citations

  • Filling device for producing and machining of eye drops

    CN110901973A