Drip-proof nozzle device of soy sauce filling machine
By designing an anti-drip nozzle device and using a drive unit and air pump to remove residual soy sauce, the dripping problem of soy sauce filling machines was solved, achieving efficient soy sauce filling and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAOCHENG ZHENGXIN ECOLOGICAL AGRI TECH PARK CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-05
AI Technical Summary
Existing soy sauce filling machines suffer from dripping during the filling process, leading to soy sauce waste and contamination, and there is a lack of effective prevention measures.
An anti-drip nozzle device was designed. A drive device is used to drive the filling tube to slide up and down. Combined with a pre-tightening spring and an air pump, the filling holes are staggered when not filling. The air pump removes residual soy sauce to prevent dripping.
It effectively prevents soy sauce dripping, reduces waste and pollution, ensures product hygiene and quality, and improves the service life and working efficiency of the equipment.
Smart Images

Figure CN224198055U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filling, and in particular to an anti-drip nozzle device for a soy sauce filling machine. Background Technology
[0002] In the food filling industry, soy sauce filling is a common production step. Currently, a common and troublesome problem with soy sauce filling machines on the market is dripping. After a filling machine completes a batch of soy sauce, some residue remains inside the filling tube due to the fluidity of soy sauce. This residue drips slowly from the outlet of the filling tube under the influence of gravity, not only wasting soy sauce and increasing production costs, but also potentially contaminating other parts of the filling machine and the production environment, affecting the normal operation of the equipment and the hygiene quality of the product. Currently, there is a lack of effective means to eliminate dripping; therefore, developing a nozzle device for filling machines that can effectively prevent soy sauce dripping is of significant practical importance. Utility Model Content
[0003] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0004] This utility model provides an anti-drip nozzle device for a soy sauce filling machine, including a vertically arranged filling pipe. A control device is provided outside the filling pipe, and the control device includes a sleeve covering the outside of the filling pipe. A driving device is provided at the top of the filling pipe, and the driving device can drive the filling pipe to slide up and down along the sleeve. A second filling hole is opened on the side of the sleeve, and a first filling hole corresponding to the second filling hole is opened on the side of the filling pipe. The second filling hole and the first filling hole coincide when the filling pipe is at its lowest point. The second filling hole of the sleeve is connected to a conveying pipe, and the sleeve and the conveying pipe are fixedly installed.
[0005] Furthermore, the driving device includes a vertically arranged guide rod, a downwardly extending driving cylinder is provided at the top of the guide rod, and a propulsion plate is provided at the output end of the driving cylinder.
[0006] Furthermore, a guide is provided on the side of the propulsion plate, and the guide is sleeved on the guide rod.
[0007] Furthermore, a preload spring is provided between the propulsion plate and the sleeve.
[0008] Furthermore, an air pump is connected to the top of the infusion pipe.
[0009] The beneficial effects of this utility model are as follows:
[0010] In the non-filling state, when the filling tube is located above the lowest point, the second filling hole is offset from the first filling hole, and the inside of the filling tube is not connected to the source of the soy sauce being filled. This isolates the soy sauce inside the filling tube from the outside world. At the same time, the air pump can remove the residual soy sauce inside the filling tube, thereby effectively preventing the soy sauce from dripping due to gravity, avoiding waste of soy sauce and pollution of the production environment, and ensuring the hygienic quality of the product.
[0011] The preload spring installed between the push plate and the sleeve acts as a buffer when the drive device moves the sleeve downwards, reducing the impact force between the sleeve and the filling pipe and extending the service life of the device. Simultaneously, after filling is completed, the spring force of the preload spring helps the sleeve return to its original position quickly and accurately, improving the device's working efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the structure of this utility model from another angle;
[0014] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0015] Explanation of reference numerals in the attached drawings: 1. Injection pipe; 101. Injection hole one; 2. Control device; 201. Sleeve; 202. Injection hole two; 203. Pre-tightening spring; 3. Drive device; 301. Guide rod; 302. Drive cylinder; 303. Propulsion plate; 304. Guide component; 4. Air pump; 5. Material conveying pipe. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to the accompanying drawings.
[0017] This utility model provides an anti-drip nozzle device for a soy sauce filling machine, including a vertically arranged filling pipe 1. A control device 2 is provided outside the filling pipe 1. The control device 2 includes a sleeve 201 covering the outside of the filling pipe 1. A driving device 3 is provided at the top of the filling pipe 1, and the driving device 3 can drive the filling pipe 1 to slide up and down along the sleeve 201. A second filling hole 202 is opened on the side of the sleeve 201, and a first filling hole 101 corresponding to the second filling hole 202 is opened on the side of the filling pipe 1. The second filling hole 202 and the first filling hole 101 coincide when the filling pipe 1 is at its lowest point. The second filling hole 202 of the sleeve 201 is connected to a conveying pipe 5. The sleeve 201 is fixedly arranged with the conveying pipe 5, so that the sleeve 201 can be fixed at the upper part of the filling position. When soy sauce needs to be filled, the drive device 3 drives the filling tube 1 to slide downward along the sleeve 201 until it reaches the lowest end of the sleeve 201. At this time, the filling hole 202 is almost aligned with the filling hole 101, and the soy sauce can flow out from the filling tube 1 through the filling hole 101 and the filling hole 202 to realize the filling operation. When the filling is finished, the drive device 3 drives the filling tube 1 to slide upward, and the filling hole 202 is misaligned with the filling hole 101, thereby blocking the soy sauce outflow channel and preventing leakage.
[0018] The driving device 3 includes a vertically arranged guide rod 301. A downwardly extending driving cylinder 302 is located at the top of the guide rod 301, and a pusher plate 303 is located at the output end of the driving cylinder 302. A guide member 304 is located on the side of the pusher plate 303 and is sleeved on the guide rod 301. When the driving cylinder 302 operates, its output end pushes the pusher plate 303, thereby causing the sleeve 201 to move up and down along the filling tube 1. The guide rod 301 provides guidance for the movement of the pusher plate 303, ensuring that the pusher plate 303 maintains a straight trajectory during movement and avoids deviation. The guide member 304 slides along the guide rod 301, while preventing relative rotation between the sleeve 201 and the filling tube 1, achieving precise alignment between the second filling hole 202 and the first filling hole 101, ensuring that the filling tube 1 accurately reaches the designated position, thus guaranteeing a smooth filling process and an anti-drip effect.
[0019] A pre-tension spring 203 is provided between the push plate 303 and the sleeve 201. An air pump 4 is connected to the top of the filling tube 1. When the drive cylinder 302 drives the push plate 303 to move the sleeve 201 downwards, the pre-tension spring 203 is compressed, acting as a buffer to reduce the impact force between the sleeve 201 and the filling tube 1, protecting the components of the device. When filling is finished, the drive cylinder 302 retracts and stops working, the elasticity of the pre-tension spring 203 is released, pushing the sleeve 201 upwards to reset, allowing the sleeve 201 to quickly and accurately return to its initial position, while simultaneously ensuring the sleeve 201 is firmly fixed at the top. After each filling, the air pump 4 starts, introducing gas into the filling tube 1. The gas forms an airflow within the filling tube 1, blowing out any residual soy sauce, ensuring no soy sauce residue remains in the filling tube 1, fundamentally eliminating any possible leakage due to residual soy sauce, and guaranteeing the accuracy and hygiene of each filling.
[0020] Working principle: During filling, the drive cylinder 302 is activated, and its output end pushes the propulsion plate 303. Under the guidance of the guide rod 301 and the guide member 304, the propulsion plate 303 drives the filling tube 1 to slide downward. The pre-tension spring 203 is compressed, which plays a buffering role and reduces the impact force between the components. As the filling tube 1 slides down, the second filling hole 202 gradually coincides with the first filling hole 101. The soy sauce in the conveying pipe 5 flows into the filling tube 1 through the second filling hole 202 and the first filling hole 101, and then into the container to be filled, thus realizing the filling operation.
[0021] After filling is completed, the output end of the drive cylinder 302 retracts, the preload spring 203 is released, and the sleeve 201 moves upward to reset, so that the second filling hole 202 and the first filling hole 101 are quickly and accurately misaligned, blocking the soy sauce outflow channel. At the same time, before the output end of the drive cylinder 302 is completely retracted, the air pump 4 starts, introducing gas into the filling tube 1. The airflow blows out any residual soy sauce in the filling tube 1, ensuring that there is no soy sauce residue in the filling tube 1, preventing dripping, ensuring the accuracy and hygiene quality of each filling, and preparing for the next filling.
[0022] Through the above specific embodiments, those skilled in the art can easily implement this utility model. However, it should be understood that this utility model is not limited to the specific embodiments described above. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions.
Claims
1. A drip-proof nozzle device for a soy sauce filling machine, characterized in that: The device includes a vertically arranged infusion tube (1), and a control device (2) is provided outside the infusion tube (1). The control device (2) includes a sleeve (201) covering the outside of the infusion tube (1). A drive device (3) is provided at the top of the infusion tube (1). The drive device (3) can drive the infusion tube (1) to slide up and down along the sleeve (201). The sleeve (201) has a second injection hole (202) on its side, and the injection tube (1) has a first injection hole (101) on its side corresponding to the second injection hole (202). The second injection hole (202) and the first injection hole (101) coincide when the injection tube (1) is at its lowest point. The second injection hole (202) of the sleeve (201) is connected to the material conveying pipe (5), and the sleeve (201) and the material conveying pipe (5) are fixedly installed.
2. The anti-drip nozzle device for a soy sauce filling machine according to claim 1, characterized in that: The drive device (3) includes a vertically arranged guide rod (301), the top of the guide rod (301) is provided with a downwardly extending drive cylinder (302), and the output end of the drive cylinder (302) is provided with a push plate (303).
3. The anti-drip nozzle device for a soy sauce filling machine according to claim 2, characterized in that: The side of the propulsion plate (303) is provided with a guide (304), which is sleeved on the guide rod (301).
4. The anti-drip nozzle device for a soy sauce filling machine according to claim 2 or 3, characterized in that: A preload spring (203) is provided between the push plate (303) and the sleeve (201).
5. The anti-drip nozzle device for a soy sauce filling machine according to claim 1, characterized in that: An air pump (4) is connected to the top of the injection pipe (1).