A liquid silica gel metering feeding device

Abstract

This utility model relates to the technical field of liquid silicone processing equipment, and in particular to a liquid silicone quantitative feeding device, including a storage tank. The storage tank has a cavity on its inner wall, and a main shaft is rotatably connected to the inner wall of the cavity. Multiple stirring rods arranged in a circular array are fixedly connected to the outer wall of the main shaft. A liquid level sensor is fixedly installed on the inner wall of the cavity. A discharge port communicating with the cavity is opened at the bottom of the storage tank, and a connecting pipe is fixedly connected to the bottom of the discharge port. A flow meter communicating with the inner wall of the pipe is installed on the outer wall of the connecting pipe. By setting up a stirring device inside the storage tank, the stirring shaft in the stirring device drives the stirring rods to rotate under the drive of a stirring motor, which can fully stir the liquid silicone in the storage tank, effectively preventing the liquid silicone from solidifying or settling before storage and transportation. The gear pump has good suction performance and the ability to transport high-viscosity fluids, making it suitable for transporting liquid silicone and ensuring the stability and reliability of the liquid silicone transportation process.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid silicone processing equipment, and in particular to a liquid silicone quantitative feeding device. Background Technology

[0002] In the silicone molding industry, silicone is classified into liquid silicone and solid silicone according to its form. Liquid silicone has gradually replaced solid silicone as the main raw material for injection molding because of its excellent transparency, tear strength, good resilience, antibacterial properties, thermal stability, aging resistance and weather resistance, and the fact that it does not contain harmful substances after vulcanization.

[0003] In the production process of liquid silicone products, liquid silicone needs to be delivered to the processing equipment in a certain quantity. Most of the liquid silicone feeding devices currently used have problems such as low quantitative accuracy and unstable feeding, which can easily lead to unqualified product quality. In addition, during the feeding process, liquid silicone is prone to solidification and precipitation, which affects the feeding effect and product quality. Furthermore, the existing feeding devices lack effective monitoring and alarm mechanisms, and cannot promptly remind the staff when there is insufficient raw material or malfunction, which affects production efficiency. Utility Model Content

[0004] This solves the problem of unstable feeding in existing equipment, avoids the solidification of liquid silicone, and improves feeding efficiency and production efficiency.

[0005] In view of the above-mentioned feeding problems, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a liquid silica gel quantitative feeding device, including a storage tank, a cavity is opened in the inner wall of the storage tank, a main shaft is rotatably connected to the inner wall of the cavity, a plurality of stirring rods arranged in a circular array are fixedly connected to the outer wall of the main shaft, a liquid level sensor is fixedly installed in the inner wall of the cavity, a discharge port communicating with the cavity is opened at the bottom end of the storage tank, a connecting pipe is fixedly connected to the bottom end of the discharge port, a flow meter communicating with the inner wall of the pipe is installed on the outer wall of the connecting pipe, and an output pump in contact with the ground is installed at the bottom end of the storage tank.

[0007] As a preferred embodiment of the liquid silica gel quantitative feeding device of this utility model, the top of the storage tank is provided with a feed inlet communicating with the cavity, the top of the feed inlet is equipped with a sealing cap, and the top of the storage tank is fixedly installed with a drive motor that is fixedly connected to the top of the main shaft.

[0008] As a preferred embodiment of the liquid silica gel quantitative feeding device of this utility model, the outer wall of the storage tank is provided with an observation window, the outer wall of the storage tank is fixedly connected with an alarm that is electrically connected to the liquid level sensor, the outer wall of the stirring rod is fixedly connected with a support rod, and the bottom inner wall of the cavity is slidably connected with a number of stirring blades that are fixedly connected to the outer wall of the main shaft.

[0009] As a preferred embodiment of the liquid silica gel quantitative feeding device of this utility model, the bottom end of the storage tank is fixedly connected to a base in contact with the ground, a valve is fixedly installed on the inner wall of the discharge port, the bottom end of the valve is connected to the top end of the connecting pipe by a flange, and the bottom end of the connecting pipe is fixedly connected to a discharge pipe.

[0010] In a preferred embodiment of the liquid silica gel quantitative feeding device of this utility model, the outer wall of the discharge pipe is fixedly connected to the outer wall of the output pump, the output pump is a gear pump, and a controller is fixedly connected to the top of the output pump.

[0011] In a preferred embodiment of the liquid silica gel quantitative feeding device of this utility model, the controller is electrically connected to the flow meter, the output pump and the valve. The controller has a preset quantitative value for liquid silica gel. The flow meter transmits the flow signal monitored in real time to the controller. The controller is used to control the output pump to stop running and to control the valve to close.

[0012] The beneficial effects of this utility model are: 1. By installing a stirring device inside the storage tank, the stirring shaft in the stirring device drives the stirring rod to rotate under the drive of the stirring motor, which can fully stir the liquid silica gel in the storage tank. This effectively prevents the liquid silica gel from solidifying or settling before storage and transportation, ensuring the uniformity of the liquid silica gel. This provides a stable raw material for the production of subsequent products, which is conducive to improving the quality of subsequent products. At the same time, the conveying mechanism uses a gear pump as the conveying pump. The gear pump has good suction performance and the ability to convey high-viscosity fluids, which is suitable for conveying liquid silica gel. It can maintain a stable flow rate and pressure during the conveying process, ensuring the stability and reliability of the liquid silica gel conveying process.

[0013] 2. The flow rate of liquid silica gel in the delivery pipeline is monitored in real time by a flow meter, and the flow signal is transmitted to the controller. The controller, based on a preset quantitative value, controls the delivery pump to stop running and closes the valve when the flow rate reaches the set value. Through the cooperation of the flow meter, controller, and valve, the amount of liquid silica gel fed can be precisely controlled, improving the feeding accuracy and ensuring that the amount fed each time meets the production requirements, thereby guaranteeing the stability of product quality. In addition, the liquid level sensor on the inner wall of the storage tank is electrically connected to an external alarm. When the liquid silica gel level in the storage tank is lower than the preset value, the liquid level sensor triggers the alarm to sound an alarm, which can promptly remind the staff to add liquid silica gel, avoiding production interruption due to insufficient raw materials and effectively ensuring the production schedule. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the installation structure of the stirring rod of this utility model.

[0016] Figure 3 This is a schematic diagram of the controller installation structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the flow meter structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Storage tank; 2. Observation window; 3. Feed inlet; 4. Sealing cover; 5. Base; 6. Output pump; 7. Main shaft; 8. Stirring rod; 9. Liquid level sensor; 10. Alarm; 11. Stirring blade; 12. Discharge port; 13. Valve; 14. Connecting pipe; 15. Discharge pipe; 16. Controller; 17. Flow meter. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example

[0020] Reference Figure 1 and Figure 2This is the first embodiment of the present invention, which provides a liquid silica gel quantitative feeding device, including a storage tank 1. The inner wall of the storage tank 1 has a cavity. A main shaft 7 is rotatably connected to the inner wall of the cavity. A plurality of stirring rods 8 arranged in a circular array are fixedly connected to the outer wall of the main shaft 7. The stirring rods 8 are used to stir the liquid silica gel. A liquid level sensor 9 is fixedly installed on the inner wall of the cavity. The liquid level sensor 9 accurately senses the changes in the position or depth of the liquid silica gel surface and converts them into quantifiable electrical or digital signals. The bottom end of the storage tank 1 has a discharge port 12 communicating with the cavity. The bottom end of the discharge port 12 is fixedly connected to a connecting pipe 14. A flow meter 17 communicating with the inner wall of the pipe is installed on the outer wall of the connecting pipe 14. The flow meter 17 generates a pressure difference when the fluid flows through by installing a throttling device in the pipe. The pressure difference is proportional to the square of the flow velocity. The flow rate is calculated by measuring the pressure difference and substituting it into the formula. An output pump 6 in contact with the ground is installed at the bottom end of the storage tank 1.

[0021] The top of the storage tank 1 is provided with a feed inlet 3 that communicates with the cavity. A sealing cover 4 is installed on the top of the feed inlet 3. A drive motor that is fixedly connected to the top of the main shaft 7 is fixedly installed on the top of the storage tank 1.

[0022] An observation window 2 is provided on the outer wall of the storage tank 1. An alarm 10 that is electrically connected to the liquid level sensor 9 is fixedly connected to the outer wall of the storage tank 1. A support rod is fixedly connected to the outer wall of the stirring rod 8. Several stirring blades 11 that are fixedly connected to the outer wall of the main shaft 7 are slidably connected to the inner wall of the bottom end of the cavity.

[0023] During use, the drive motor starts and drives the main shaft 7 to rotate, which in turn drives the stirring rod 8, support rod and stirring plate 11 to rotate together. The stirring rod 8 and support rod can stir the liquid silica gel at different positions in the storage tank 1, while the stirring plate 11 can turn the liquid silica gel at the bottom of the storage tank 1 during rotation, so that the liquid silica gel in the storage tank 1 is fully stirred, effectively preventing the liquid silica gel from solidifying or settling during storage and feeding, and ensuring the uniformity of the liquid silica gel. Meanwhile, an output pump 6 is installed at the bottom of the storage tank 1. The output pump 6 is a gear pump. The gear pump has good self-priming ability and high discharge pressure. It has excellent conveying performance for high-viscosity liquid silicone and can maintain stable flow and pressure during the conveying process, ensuring the stability and reliability of the liquid silicone conveying process and laying a good foundation for subsequent quantitative feeding. Example

[0024] Reference Figures 1-4This is the second embodiment of the present utility model. The difference between this embodiment and the first embodiment is that: the bottom end of the storage tank 1 is fixedly connected to the base 5 that is in contact with the ground, the inner wall of the discharge port 12 is fixedly installed with a valve 13, the bottom end of the valve 13 is connected to the top end of the connecting pipe 14 by a flange, and the bottom end of the connecting pipe 14 is fixedly connected to the discharge pipe 15.

[0025] The outer wall of the discharge pipe 15 is fixedly connected to the outer wall of the output pump 6. The output pump 6 is a gear pump, and a controller 16 is fixedly connected to the top of the output pump 6.

[0026] The controller 16 is electrically connected to the flow meter 17, the output pump 6 and the valve 13. The controller 16 has a preset quantitative value for liquid silica gel. The flow meter 17 transmits the real-time monitored flow signal to the controller 16. When the monitored flow reaches the preset quantitative value, the controller 16 controls the output pump 6 to stop running and controls the valve 13 to close, thereby realizing the quantitative feeding of liquid silica gel.

[0027] During use, the flow meter 17 monitors the flow rate of the liquid silicone in the connecting pipe 14 in real time and transmits the real-time flow signal to the controller 16. The controller 16 has a preset quantitative value for the liquid silicone. When the flow rate monitored by the flow meter 17 reaches the preset quantitative value, the controller 16 will immediately control the output pump 6 to stop running and control the valve 13 to close, thereby accurately controlling the amount of liquid silicone fed, improving the feeding accuracy, and ensuring the stability of product quality. In addition, a liquid level sensor 9 is fixedly installed on the inner wall of the cavity of the storage tank 1, and an alarm 10 electrically connected to the liquid level sensor 9 is fixedly connected to the outer wall of the storage tank 1. The liquid level sensor 9 can monitor the liquid level of the liquid silica gel in the storage tank 1 in real time. When the liquid level is lower than the preset value, the liquid level sensor 9 transmits a signal to the alarm 10, and the alarm 10 sounds an alarm to promptly remind the staff to add liquid silica gel and avoid affecting the production progress due to insufficient raw materials. The remaining structure is the same as that in Example 1.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A liquid silicone rubber dosing device, characterized by: Including the storage tank (1), the inner wall of the storage tank (1) is provided with a cavity, the inner wall of the cavity is rotatably connected with a main shaft (7), the outer wall of the main shaft (7) is fixedly connected with a plurality of circular array distribution stirring rods (8), the inner wall of the cavity is fixedly installed with a liquid level sensor (9), the bottom end of the storage tank (1) is provided with a discharge port (12) communicated with the cavity, the bottom end of the discharge port (12) is fixedly connected with a connecting pipe (14), the outer wall of the connecting pipe (14) is installed with a flowmeter (17) communicated with the inner wall of the pipeline, the bottom end of the storage tank (1) is installed with an output pump (6) in contact with the ground.

2. The liquid silicone rubber dosing device of claim 1, wherein: The top end of the storage tank (1) is provided with a feed port (3) communicated with the cavity, the top end of the feed port (3) is installed with a sealing cover (4), the top end of the storage tank (1) is fixedly installed with a driving motor fixedly connected with the top end of the main shaft (7).

3. The liquid silicone rubber dosing device of claim 1, wherein: The outer wall of the storage tank (1) is provided with an observation window (2), the outer wall of the storage tank (1) is fixedly connected with an alarm (10) electrically connected with the liquid level sensor (9), the outer wall of the stirring rod (8) is fixedly connected with a supporting rod, the bottom end inner wall of the cavity is slidably connected with a plurality of stirring blades (11) fixedly connected with the outer wall of the main shaft (7).

4. The liquid silicone rubber dosing device of claim 1, wherein: The bottom end of the storage tank (1) is fixedly connected with a base (5) in contact with the ground, the inner wall of the discharge port (12) is fixedly installed with a valve (13), the bottom end of the valve (13) and the top end of the connecting pipe (14) are flange connected, the bottom end of the connecting pipe (14) is fixedly connected with a discharge pipe (15).

5. The liquid silicone rubber dosing device of claim 4, wherein: The outer wall of the discharge pipe (15) and the outer wall of the output pump (6) are fixedly connected, the output pump (6) is a gear pump, the top end of the output pump (6) is fixedly connected with a controller (16).

6. The liquid silicone rubber dosing device of claim 5, wherein: The controller (16) is electrically connected with the flowmeter (17), the output pump (6) and the valve (13), the controller (16) is pre-set with a quantitative value of liquid silicone, the flowmeter (17) transmits the real-time monitored flow signal to the controller (16), the controller (16) is used for controlling the output pump (6) to stop running and controlling the valve (13) to close.

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