A filling device with a drip-proof structure for a filling production line

By introducing an anti-drip structure into the filling device, and utilizing components such as sleeves, one-way valve plates, and electric push rods, timely recovery of liquid after filling is achieved, solving the dripping problem of traditional filling devices and improving the cleanliness and safety of the production line.

CN224393112UActive Publication Date: 2026-06-23NANTONG YUQUAN MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG YUQUAN MASCH TECH CO LTD
Filing Date
2025-10-16
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

After filling is completed, the existing filling equipment still leaves residual liquid in the outlet pipe and inside the filling head, which is prone to dripping, resulting in material waste and contamination, posing a serious quality and safety hazard, especially in the pharmaceutical and food industries.

Method used

A filling device with an anti-drip structure was designed, including a sleeve, a one-way valve plate, a delivery pipe, a conical cover, and a retaining spring. The mounting plate is driven to move down by a telescopic cylinder so that the conical cover contacts the container, pushing the delivery pipe up to open the one-way valve plate for filling. After filling, the one-way valve plate closes to prevent dripping, and the residual liquid is extracted into a collection tank by an electric push rod. The air pressure is balanced by a breather valve to ensure the recovery of residual liquid.

Benefits of technology

It effectively prevents liquid dripping, reduces material waste and pollution, improves the cleanliness and reliability of the filling equipment, and lowers production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of filling device with anti-dripping structure for filling production line, belong to filling production line technical field, including rack, transmission connection in the transmission belt of rack interior and the drive motor for driving operation transmission belt of fixed installation in the outside of rack, the outside of the rack is provided with filling mechanism, the filling mechanism includes telescopic cylinder, mounting plate and liquid outlet pipe, the outside of the liquid outlet pipe is provided with anti-dripping structure, the top of the mounting plate is provided with the extraction mechanism of cooperation with anti-dripping structure use.The filling device with anti-dripping structure for filling production line, by telescopic cylinder drive mounting plate down, make conical cover resist container, open one-way valve plate and complete filling, one-way valve plate closes after filling and prevents dripping, sliding is driven by electric push rod, utilize negative pressure extraction sleeve and remain liquid, into collection box by drainage pipe, breathing valve balances air pressure, realize remaining liquid recovery, avoid pollution and waste.
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Description

Technical Field

[0001] This utility model relates to the field of filling production line technology, specifically to a filling device for a filling production line with an anti-drip structure. Background Technology

[0002] In the filling production process of industries such as food, pharmaceuticals, and daily chemicals, the filling device is one of the core pieces of equipment. Its main function is to accurately inject liquid materials into containers. The filling devices commonly used in existing filling production lines typically consist of a storage tank, a dispensing pipe, a filling head, and a control valve. During operation, the control valve is opened, allowing the liquid in the storage tank to flow into the container to be filled through the dispensing pipe and the filling head. After filling is completed, the control valve is closed.

[0003] However, this traditional filling device has a significant anti-drip defect: after filling is completed and the control valve is closed, some liquid remains in the outlet pipe and inside the filling head. This residual liquid, under the influence of gravity, easily drips from the filling head outlet onto the production line workbench or the surface of the containers to be filled. This not only wastes liquid materials but also contaminates the workbench, increasing cleaning workload. If it drips onto the containers to be filled, it may also affect the purity of the materials being filled subsequently, posing a serious quality and safety hazard, especially in the pharmaceutical and food industries. Therefore, a filling device with an anti-drip structure for filling production lines is proposed to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a filling device for a filling production line with an anti-drip structure, which has the advantages of effective anti-drip and excess liquid collection, thus solving the problems mentioned in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A filling device for a filling production line with an anti-drip structure includes a frame, a conveyor belt connected to the inside of the frame, and a drive motor fixedly installed on the outside of the frame for driving the conveyor belt. A filling mechanism is provided on the outside of the frame. The filling mechanism includes a telescopic cylinder, a mounting plate, and a liquid outlet pipe. An anti-drip structure is provided on the outside of the liquid outlet pipe. A suction mechanism that works in conjunction with the anti-drip structure is provided on the top of the mounting plate.

[0007] The anti-drip structure includes a sleeve fitted around the outside of the liquid outlet pipe, a one-way valve plate rotatably connected inside the sleeve, a delivery pipe extending to its lower surface slidably connected inside the sleeve, a conical cover fixedly connected to the bottom end of the delivery pipe, and a retaining spring fixedly connected between the conical cover and the sleeve.

[0008] The extraction mechanism includes an electric push rod fixedly installed on the top of the mounting plate, a piston cylinder, and a collection box fixedly connected to the outside of the frame. A stopper plate is slidably connected inside the piston cylinder. A drain pipe is fixedly connected between the piston cylinder and the collection box. A suction pipe is fixedly connected between one side of the piston cylinder and the sleeve.

[0009] Furthermore, the abutment spring is connected to the outside of the conveying pipe, which is located on the lower surface of the one-way valve plate and abuts against the lower surface of the one-way valve plate.

[0010] Furthermore, the number of sleeves, one-way valve plates, conveying pipes, conical covers, and abutment springs are all three sets, and a connecting pipe is fixedly connected between adjacent sets of sleeves.

[0011] Furthermore, a piston rod extending to the outside of the piston cylinder is fixedly connected to the outside of the piston plate, and a transmission rod fixedly connected to the extension end of the electric push rod is fixedly connected to the piston rod.

[0012] Furthermore, the collection box is a hollow cuboid, and a breathing valve is fixedly installed on one side of the outside of the collection box.

[0013] Furthermore, there are two sets of telescopic cylinders, both sets of which are fixedly installed on the outside of the frame, and the mounting plate is fixedly connected to the output end of the two sets of telescopic cylinders.

[0014] Furthermore, a storage box is fixedly connected to the top of the mounting plate, a storage box is fixedly installed on the top of the storage box, a delivery pump is fixedly installed on the top of the storage box, and an extraction pipe is fixedly connected between the storage box and the input end of the delivery pump.

[0015] Furthermore, a mounting base is fixedly connected to the bottom of the mounting plate, and there are three sets of liquid outlet pipes. The three sets of liquid outlet pipes are distributed at equal intervals inside the mounting base, and a diversion pipe is fixedly connected between the output end of the delivery pump and the three sets of liquid outlet pipes.

[0016] Compared with the prior art, this utility model provides a filling device for a filling production line with an anti-drip structure, which has the following beneficial effects:

[0017] 1. The filling device for the filling production line with anti-drip structure uses a telescopic cylinder to drive the mounting plate downward, causing the conical cover under the outer sleeve of the liquid outlet pipe to contact the container to be filled, pushing the conveying pipe upward and opening the one-way valve plate. Liquid flows into the container through the liquid outlet pipe and the conveying pipe. After filling is completed, the telescopic cylinder drives the mounting plate upward, the conical cover loses its contact, the contact spring around the conveying pipe resets and pulls the conveying pipe back, and the one-way valve plate closes, preventing residual liquid from dripping from the liquid outlet pipe. In addition, the three sets of sleeves are connected by a connecting pipe, which can be used to simultaneously prevent dripping of multiple sets of liquid outlet pipes, improving the anti-drip effect of batch filling.

[0018] 2. The filling device for this filling production line with anti-drip structure completes filling by closing the one-way valve plate. The electric push rod drives the stopper rod through the transmission rod, causing the stopper plate inside the piston cylinder to slide. The residual liquid in the sleeve is extracted by the liquid extraction pipe. Then the stopper plate slides in the reverse direction, and the remaining liquid is discharged into the collection box outside the frame through the drain pipe. The air pressure is balanced by the breather valve of the collection box to ensure smooth recovery and timely recovery of the remaining liquid, avoiding contamination and material loss. Attached Figure Description

[0019] Figure 1 This is a perspective view of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the liquid outlet pipe and the anti-drip structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the anti-drip structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the extraction mechanism of this utility model.

[0023] In the diagram: 1. Frame; 2. Conveyor belt; 3. Drive motor; 4. Filling mechanism; 41. Telescopic cylinder; 42. Storage tank; 43. Transfer pump; 44. Extraction pipe; 45. Diverter pipe; 46. Mounting base; 47. Discharge pipe; 48. Mounting plate; 5. Anti-drip structure; 51. Sleeve; 52. One-way valve plate; 53. Transfer pipe; 54. Conical cover; 55. Abutment spring; 56. Connecting pipe; 6. Extraction mechanism; 61. Electric push rod; 62. Transmission rod; 63. Piston cylinder; 64. Collection tank; 65. Plug plate; 66. Plug rod; 67. Extraction pipe; 68. Drainage pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 4A filling device for a filling production line with an anti-drip structure in this embodiment includes a frame 1, a conveyor belt 2 connected to the inside of the frame 1, and a drive motor 3 fixedly installed on the outside of the frame 1 for driving the conveyor belt 2. A filling mechanism 4 is provided on the outside of the frame 1. The filling mechanism 4 includes a telescopic cylinder 41, a mounting plate 48, and a liquid outlet pipe 47. An anti-drip structure 5 is provided on the outside of the liquid outlet pipe 47. A suction mechanism 6 that works in conjunction with the anti-drip structure 5 is provided on the top of the mounting plate 48.

[0026] The anti-drip structure 5 includes a sleeve 51 fitted onto the outside of the outlet pipe 47. A one-way valve plate 52 is rotatably connected inside the sleeve 51, and a delivery pipe 53 extending to its lower surface is slidably connected inside the sleeve 51. A conical cover 54 is fixedly connected to the bottom end of the delivery pipe 53, and a retaining spring 55 is fixedly connected between the conical cover 54 and the sleeve 51. During filling, the conical cover 54 abuts against the container to be filled, pushing the delivery pipe 53 upward and opening the one-way valve plate 52, allowing the liquid to flow out smoothly. After filling, the retaining spring 55 resets, pulling the delivery pipe 53 downward, closing the one-way valve plate 52, and preventing residual liquid from dripping from the outlet pipe 47. Simultaneously, the three sets of sleeves 51 are connected by a connecting pipe 56, ensuring that the multiple anti-drip structures 5 operate synchronously. This avoids drip contamination, meets the leak-proof requirements of batch filling, and improves the cleanliness and reliability of the device.

[0027] Specifically, the abutment spring 55 is connected around the outside of the delivery pipe 53, which is located on the lower surface of the one-way valve plate 52 and abuts against the lower surface of the one-way valve plate 52.

[0028] It should be noted that there are three sets of sleeves 51, one-way valve plate 52, delivery pipe 53, conical cover 54 and abutment spring 55, and a connecting pipe 56 is fixedly connected between adjacent sets of sleeves 51.

[0029] In this embodiment, the extraction mechanism 6 includes an electric push rod 61 fixedly installed on the top of the mounting plate 48, a piston cylinder 63, and a collection box 64 fixedly connected to the outside of the frame 1. A stopper plate 65 is slidably connected inside the piston cylinder 63. A drain pipe 68 is fixedly connected between the piston cylinder 63 and the collection box 64. A suction pipe 67 is fixedly connected between one side of the piston cylinder 63 and the sleeve 51. When the one-way valve plate 52 is closed, the electric push rod 61 drives the stopper plate 65 to slide, using negative pressure to extract the residual liquid in the sleeve 51, and then discharges the remaining liquid into the collection box 64. The breather valve of the collection box 64 can balance the air pressure inside the box, ensuring that the remaining liquid flows in smoothly. This not only avoids the accumulation and deterioration of the remaining liquid, which contaminates the subsequent filling materials, but also realizes the recovery of the remaining liquid, reduces material waste, and lowers production costs. At the same time, the extraction mechanism 6 moves synchronously with the mounting plate 48, ensuring the timeliness of the recovery of the remaining liquid.

[0030] Among them, the piston plate 65 is fixedly connected to the outside of the piston cylinder 63 by a piston rod 66, and the telescopic end of the electric push rod 61 is fixedly connected to a transmission rod 62 that is fixedly connected to the piston rod 66.

[0031] Specifically, the collection box 64 is a hollow cuboid, and a breather valve is fixedly installed on one side of the outside of the collection box 64. By setting the breather valve, the air pressure inside and outside the collection box 64 can be balanced. When the extraction mechanism 6 discharges liquid into the collection box 64, the breather valve can promptly discharge the air inside the box, avoiding the normal operation of the extraction mechanism 6 due to excessive air pressure, and ensuring the stable operation of the entire device.

[0032] In this embodiment, there are two sets of telescopic cylinders 41. Both sets of telescopic cylinders 41 are fixedly installed on the outside of the frame 1. The mounting plate 48 is fixedly connected to the output end of the two sets of telescopic cylinders 41. A storage box 42 is fixedly connected to the top of the mounting plate 48. A storage box 42 is fixedly installed on the top of the storage box 42. A delivery pump 43 is fixedly installed on the top of the storage box 42. An extraction pipe 44 is fixedly connected between the storage box 42 and the input end of the delivery pump 43.

[0033] The mounting plate 48 is fixedly connected to the bottom of the mounting base 46. There are three sets of liquid outlet pipes 47, which are distributed at equal intervals inside the mounting base 46. A diversion pipe 45 is fixedly connected between the output end of the delivery pump 43 and the three sets of liquid outlet pipes 47.

[0034] The working principle of the above embodiments is as follows:

[0035] During operation, the drive motor 3 drives the conveyor belt 2 to transport the container to be filled to the filling position. The two sets of telescopic cylinders 41 push the mounting plate 48 down, so that the conical cover 54 touches the container, pushing the conveying pipe 53 up to open the one-way valve plate 52. At the same time, the conveying pump 43 draws liquid from the storage tank 42 through the extraction pipe 44, and flows out through the diversion pipe 45 from the three sets of liquid outlet pipes 47 for filling. After filling is completed, the abutment spring 55 pulls the conveying pipe 53 down, and the one-way valve plate 52 closes to prevent dripping. The three sets of sleeves 51 move synchronously through the connecting pipe 56. At this time, the electric push rod 61 drives the stopper plate 65 to slide through the transmission rod 62 and the stopper rod 66. Using negative pressure, the remaining liquid in the sleeve 51 is drawn through the extraction pipe 67 and discharged into the collection tank 64 through the drain pipe 68. The breather valve balances the air pressure in the tank to ensure that the remaining liquid flows in smoothly and realizes the recovery of the remaining liquid.

[0036] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0037] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filling device for a filling production line with an anti-drip structure, characterized in that: The device includes a frame (1), a conveyor belt (2) connected to the inside of the frame (1), and a drive motor (3) fixedly installed outside the frame (1) for driving the conveyor belt (2). A filling mechanism (4) is provided outside the frame (1). The filling mechanism (4) includes a telescopic cylinder (41), a mounting plate (48), and a liquid outlet pipe (47). An anti-drip structure (5) is provided outside the liquid outlet pipe (47). A suction mechanism (6) that works in conjunction with the anti-drip structure (5) is provided on the top of the mounting plate (48). The anti-drip structure (5) includes a sleeve (51) fitted around the outside of the liquid outlet pipe (47). A one-way valve plate (52) is rotatably connected inside the sleeve (51). A delivery pipe (53) extending to its lower surface is slidably connected inside the sleeve (51). A conical cover (54) is fixedly connected to the bottom end of the delivery pipe (53). A retaining spring (55) is fixedly connected between the conical cover (54) and the sleeve (51). The extraction mechanism (6) includes an electric push rod (61) fixedly installed on the top of the mounting plate (48), a piston cylinder (63), and a collection box (64) fixedly connected to the outside of the frame (1). A stopper plate (65) is slidably connected inside the piston cylinder (63). A drain pipe (68) is fixedly connected between the piston cylinder (63) and the collection box (64). A suction pipe (67) is fixedly connected between one side of the piston cylinder (63) and the sleeve (51).

2. The filling device for a filling production line with an anti-drip structure according to claim 1, characterized in that: The abutment spring (55) is connected around the outside of the delivery pipe (53), which is located on the lower surface of the one-way valve plate (52) and abuts against the lower surface of the one-way valve plate (52).

3. The filling device for a filling production line with an anti-drip structure according to claim 1, characterized in that: The number of sleeves (51), one-way valve plates (52), conveying pipes (53), conical covers (54) and abutment springs (55) are all three sets, and a connecting pipe (56) is fixedly connected between adjacent sets of sleeves (51).

4. A filling device for a filling production line with an anti-drip structure according to claim 1, characterized in that: The piston plate (65) is fixedly connected to the outside of the piston cylinder (63) with a piston rod (66) extending to the outside of the piston cylinder (63), and the telescopic end of the electric push rod (61) is fixedly connected to a transmission rod (62) that is fixedly connected to the piston rod (66).

5. A filling device for a filling production line with an anti-drip structure according to claim 1, characterized in that: The collection box (64) is a hollow cuboid, and a breathing valve is fixedly installed on one side of the outside of the collection box (64).

6. A filling device for a filling production line with an anti-drip structure according to claim 1, characterized in that: The telescopic cylinders (41) are in two sets, and both sets of telescopic cylinders (41) are fixedly installed on the outside of the frame (1). The mounting plate (48) is fixedly connected to the output end of the two sets of telescopic cylinders (41).

7. A filling device for a filling production line with an anti-drip structure according to claim 6, characterized in that: A storage box (42) is fixedly connected to the top of the mounting plate (48), and a storage box (42) is fixedly installed on the top of the storage box (42). A delivery pump (43) is fixedly installed on the top of the storage box (42), and an extraction pipe (44) is fixedly connected between the input end of the storage box (42) and the delivery pump (43).

8. A filling device for a filling production line with an anti-drip structure according to claim 7, characterized in that: The bottom of the mounting plate (48) is fixedly connected to a mounting base (46). There are three sets of liquid outlet pipes (47). The three sets of liquid outlet pipes (47) are distributed at equal intervals inside the mounting base (46). A diversion pipe (45) is fixedly connected between the output end of the delivery pump (43) and the three sets of liquid outlet pipes (47).