Special grease filling device with exhaust function

Abstract

The utility model relates to a kind of special grease filling device with exhaust function, belong to filling equipment technical field, comprising: storage unit, the storage unit includes storage tank and agitator;Conveying unit, the conveying unit includes the screw pump and conveying pipeline with storage tank export intercommunication, pressure sensor is equipped on the conveying pipeline;Filling unit, the filling unit includes multistage exhaust filling head and vacuum cavity, the inner layer of multistage exhaust filling head is filling passage, outer layer is exhaust passage, the exhaust passage is connected with vacuum pump through, the vacuum cavity is around and is connected with vacuum pump and is arranged at the outlet of multistage exhaust filling head;Control unit, including PLC controller and touch screen, the PLC controller is electrically connected with electric heating layer, agitator, screw pump, pressure sensor and vacuum pump respectively.By setting multistage exhaust filling head, inner layer is filling passage, outer layer is exhaust passage, avoid bubble significantly improve filling precision.

Description

Technical Field

[0001] This utility model belongs to the field of filling equipment technology, specifically relating to a special grease filling device with venting function. Background Technology

[0002] In the field of specialty grease filling, traditional filling equipment typically employs simple gravity filling or single-stage pump filling methods. These devices mainly consist of a storage tank, conveying pipelines, and a filling head, using gravity or pumping to transport the specialty grease from the storage tank to the filling head for filling. However, this traditional method has several shortcomings: First, specialty greases are prone to air bubbles during transport, leading to low filling accuracy and affecting product quality; second, the lack of an effective venting mechanism prevents timely gas removal during filling, further reducing filling efficiency and accuracy; and third, traditional equipment suffers from poor temperature control and mixing, making it difficult to meet the filling requirements of specialty greases at different temperatures. Utility Model Content

[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0004] A special grease filling device with venting function includes: a storage unit, comprising a storage tank with an electric heating layer and a stirrer installed inside the storage tank; a conveying unit, comprising a screw pump and a conveying pipeline connected to the outlet of the storage tank, wherein a pressure sensor is provided on the conveying pipeline; a filling unit, comprising a multi-stage venting filling head and a vacuum chamber, wherein the multi-stage venting filling head has a double-layer concentric sleeve structure, the inner layer of the multi-stage venting filling head is a filling channel and the outer layer is a venting channel, the venting channel is connected to the vacuum pump, and the vacuum chamber is arranged around the outlet of the multi-stage venting filling head and connected to the vacuum pump; and a control unit, comprising a PLC controller and a touch screen, wherein the PLC controller is electrically connected to the electric heating layer, the stirrer, the screw pump, the pressure sensor, and the vacuum pump respectively.

[0005] Furthermore, the end of the filling channel is provided with a conical diffuser, and the diffuser angle of the conical diffuser is 15° to 30°.

[0006] Furthermore, the temperature control range of the electric heating layer is 30℃~80℃, and the outer wall of the conveying pipe is wrapped with a silicone heating strip.

[0007] Furthermore, the blades of the stirrer have a spiral ribbon structure, and the stirring speed is adjustable from 10 to 50 r / min.

[0008] Furthermore, the vacuum pump is connected to the exhaust channel and the vacuum chamber respectively via a three-way valve, and the vacuum negative pressure value is adjustable in the range of 0.05MPa to 0.1MPa.

[0009] Furthermore, the pressure sensor is installed on the conveying pipeline between the screw pump outlet and the filling head, and is used to monitor the pipeline pressure in real time and feed it back to the PLC controller.

[0010] Furthermore, the inner filling channel and outer exhaust channel of the multi-stage exhaust filling head are made of high-temperature resistant polytetrafluoroethylene.

[0011] Furthermore, the bottom of the vacuum chamber is provided with a flexible sealing ring to accommodate filling containers of different diameters.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides a special grease filling device with venting function. By setting up a multi-stage venting filling head, with the inner layer being the filling channel and the outer layer being the venting channel, it can effectively remove air bubbles in the special grease during the filling process, avoiding the problem of inaccurate filling volume caused by air bubbles and significantly improving filling accuracy.

[0014] 2. This utility model provides a special grease filling device with venting function. The device is equipped with an electric heating layer and a silicone heating belt, which ensures the temperature stability of the special grease during storage and transportation. The temperature control range is 30℃~80℃, avoiding changes in product performance due to temperature fluctuations. The spiral ribbon structure agitator can uniformly stir the special grease, and the stirring speed is adjustable from 10 to 50 r / min, ensuring the consistency and uniformity of the product. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the device structure of this utility model;

[0016] Figure 2 This is a front view of the device of this utility model;

[0017] Figure 3 for Figure 2 Sectional view along section AA;

[0018] Figure 4 for Figure 2 Sectional view along section CC;

[0019] Figure 5 This is a top view of the device of this utility model;

[0020] Figure 6 for Figure 5 Sectional view along section BB;

[0021] Figure 7 for Figure 6 Enlarged view of region D in the middle.

[0022] In the diagram: 1. Storage unit, 11. Storage tank, 111. Electric heating layer, 12. Agitator, 2. Conveying unit, 21. Screw pump, 22. Conveying pipeline, 23. Pressure sensor, 3. Filling unit, 31. Multi-stage exhaust filling head, 311. Filling channel, 312. Exhaust channel, 32. Vacuum chamber, 33. Vacuum pump, 4. Control unit, 41. PLC controller, 42. Touch screen. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0024] Example 1

[0025] like Figures 1 to 7 As shown, this utility model provides a special grease filling device with venting function, including the following units: a storage unit 1, a conveying unit 2, a filling unit 3, and a control unit 4. The storage unit 1 includes a storage tank 11 and a stirrer 12. The storage tank 11 adopts a double-layer stainless steel structure, with an outer or inner layer being an electrically heated layer 111. A PID temperature control module stabilizes the grease temperature within an adjustable range of 30℃ to 80℃ to ensure grease flowability. The stirrer 12 is vertically installed at the center of the storage tank 11, and its spiral blades rotate at a low speed of 10 to 50 r / min to avoid agitating air bubbles and prevent grease stratification. The conveying unit 2 includes a screw pump 21 and a conveying pipe 22. The screw pump 21 is connected to the outlet of the storage tank 11 via a flange, pumping the grease into the conveying pipe 22 at a uniform speed. The outer wall of the conveying pipe 22 is wrapped with a silicone heating strip to maintain the grease conveying temperature and prevent solidification. Pressure sensor 23 is installed on the pipeline between the outlet of screw pump 21 and filling head to monitor pressure in real time and transmit signals to PLC controller 41. Filling unit 3 includes multi-stage exhaust filling head 31 and vacuum chamber 32. Multi-stage exhaust filling head 31 is a double-layer concentric sleeve made of high-temperature resistant polytetrafluoroethylene. The inner layer is filling channel 311 for conveying special grease, and the end is processed into a conical diffuser with a diffusion angle of 25° to allow the grease to flow smoothly into the container. The outer layer is an annular exhaust channel 312, which is laid on the outer periphery of filling channel 311 and connected to vacuum pump 33 through pipeline. Vacuum chamber 32 is covered around the outlet of multi-stage exhaust filling head 31, and the bottom is embedded with fluororubber flexible sealing ring, which can be adapted to container openings with diameters of 20-100mm and form a seal.

[0026] The vacuum pump 33 is connected to both the exhaust channel 312 and the vacuum chamber 32 via a three-way valve, providing a negative pressure of 0.08 MPa. The adjustable range of the negative pressure is 0.05 to 0.1 MPa. It extracts air bubbles from the grease and residual gas in the container in two stages.

[0027] The control unit 4 includes a PLC controller 41 and a touch screen 42. The PLC controller 41 is used to receive real-time data from the pressure sensor 23 and dynamically adjust the speed of the screw pump 21 to maintain constant pressure delivery. The touch screen 42 is used to set parameters such as temperature, vacuum, and stirring speed, and to monitor the operating status of each component.

[0028] Workflow:

[0029] The resin is stirred at a constant temperature in the storage tank → the screw pump delivers the resin at the set pressure → the resin flows into the container through the filling channel, while the exhaust channel removes air bubbles from inside the resin → the vacuum chamber extracts the gas from the top of the container → the vacuum pump automatically shuts off after filling is completed.

[0030] Example 2

[0031] Further optimization based on Example 1:

[0032] The filling head diffuser angle is set to 20° to balance the flow rate and prevent splashing; the vacuum pump 33 is equipped with a buffer tank to prevent the grease from being sucked into the vacuum pipeline; the flexible sealing ring 321 adopts a corrugated structure to adapt to irregular container openings.

[0033] Example 3

[0034] The PLC controller 41 performs the following closed-loop control: automatically reduces the screw pump speed when the pressure exceeds the limit; increases the vacuum pump power when insufficient vacuum is detected; and delays shutting down the vacuum pump for 3 seconds after filling to ensure that residual gas is completely removed.

[0035] Of course, the above embodiments are not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A special grease filling device with venting function, characterized in that... : Includes: a storage unit (1), the storage unit (1) including a storage tank (11) with an electric heating layer (111) and a stirrer (12) installed in the storage tank (11); The conveying unit (2) includes a screw pump (21) connected to the outlet of the storage tank (11) and a conveying pipe (22), and a pressure sensor (23) is provided on the conveying pipe (22). The filling unit (3) includes a multi-stage exhaust filling head (31) and a vacuum chamber (32). The multi-stage exhaust filling head (31) has a double-layer concentric sleeve structure. The inner layer of the multi-stage exhaust filling head (31) is a filling channel (311), and the outer layer is an exhaust channel (312). The exhaust channel (312) is connected to the vacuum pump (33). The vacuum chamber (32) is arranged around the outlet of the multi-stage exhaust filling head (31) and is connected to the vacuum pump (33). The control unit (4) includes a PLC controller (41) and a touch screen (42). The PLC controller (41) is electrically connected to the electric heating layer (111), the stirrer (12), the screw pump (21), the pressure sensor (23), and the vacuum pump (33), respectively.

2. The special grease filling device with venting function according to claim 1, characterized in that... : The end of the filling channel (311) is provided with a conical diffuser, and the diffuser angle of the conical diffuser is 15° to 30°.

3. The special grease filling device with venting function according to claim 1, characterized in that... : The temperature control range of the electric heating layer (111) is 30℃~80℃, and the outer wall of the conveying pipe (22) is wrapped with a silicone heating strip.

4. The special grease filling device with venting function according to claim 1, characterized in that... : The blades of the stirrer (12) are spiral ribbon-shaped, and the stirring speed is adjustable from 10 to 50 r / min.

5. The special grease filling device with venting function according to claim 1, characterized in that: The vacuum pump (33) is connected to the exhaust channel (312) and the vacuum chamber (32) respectively through a three-way valve, and the vacuum negative pressure value can be adjusted in the range of 0.05MPa to 0.1MPa.

6. The special grease filling device with venting function according to claim 1, characterized in that... : The pressure sensor (23) is located on the conveying pipe (22) between the outlet of the screw pump (21) and the multi-stage exhaust filling head (31) to monitor the pipe pressure in real time and feed it back to the PLC controller (41).

7. The special grease filling device with venting function according to claim 1, characterized in that... : The inner filling channel (311) and outer exhaust channel (312) of the multi-stage exhaust filling head (31) are made of high-temperature resistant polytetrafluoroethylene.

8. The special grease filling device with venting function according to claim 1, characterized in that... : The bottom of the vacuum chamber (32) is provided with a flexible sealing ring for adapting to filling containers of different diameters.

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