Semi-automatic gear pump liquid filling machine

Abstract

The application relates to the technical field of filling equipment, and discloses a semi-automatic gear pump liquid filling machine, which comprises a base, vertical columns are fixedly installed at the top of the base, a same liquid filling machine body is fixedly installed at the top of the four vertical columns, a gear pump is fixedly installed on the front outer wall of the liquid filling machine body, a liquid suction hose is fixedly connected to the suction end of the gear pump, a liquid outlet hose is fixedly connected to the discharge end of the gear pump, and a quantitative filling mechanism is arranged at the bottom of the liquid filling machine body. The application has the following advantages and effects: the same type of filling bottles can be accurately batch-filled without changing the height position of the stop block; the filling amount can be accurately adjusted by adjusting the height position of the push plate and the stop block; the semi-automatic gear pump liquid filling machine is suitable for the accurate filling of different types of filling bottles, is simple and convenient to operate, and improves work efficiency.

Description

Technical Field

[0001] This application relates to the field of filling equipment technology, and in particular to a semi-automatic gear pump liquid filling machine. Background Technology

[0002] In the field of liquid filling, semi-automatic gear pump liquid filling machines are widely used in small-to-medium batch production scenarios in industries such as food, chemicals, and pharmaceuticals due to their relatively simple structure and moderate cost. In practical applications of semi-automatic gear pump liquid filling machines, the performance of the control system directly affects the equipment's operating efficiency and filling accuracy.

[0003] In existing technologies, the control core of traditional semi-automatic gear pump liquid filling machines mostly relies on microcontroller systems. Their button layout is scattered and the logical connections are complex, requiring operators to memorize multiple button combinations to complete basic function settings. Novices often require extensive training to become proficient. Furthermore, the microcontroller's circuit board has low integration, and solder joints exposed to complex production environments are susceptible to dust and moisture, frequently causing contact problems, program errors, and other malfunctions, leading to high downtime and maintenance rates and severely impacting the accuracy of each filling volume. Moreover, the difficulty in adjusting filling accuracy also restricts equipment performance. Traditional equipment often adjusts the filling volume through mechanical knobs linked to a quantitative mechanism, requiring operators to rely on experience to repeatedly test fills, weigh, and readjust, which is not only time-consuming and labor-intensive but also difficult to guarantee accuracy, especially with smaller filling volumes where error fluctuations are greater. In addition, the calibration setting process for liquid materials is cumbersome, requiring the sequential adjustment of multiple parameters and multiple cyclic tests to stabilize the filling volume within the target range, significantly increasing preparation time during production changes.

[0004] Therefore, we propose a semi-automatic gear pump liquid filling machine to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a semi-automatic gear pump liquid filling machine with convenient start-up and shutdown.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a semi-automatic gear pump liquid filling machine, including a base, with columns fixedly installed at the four corners of the top of the base, and a liquid filling machine body fixedly installed at the top of the four columns. A gear pump is fixedly installed on the front outer wall of the liquid filling machine body. A suction hose is fixedly connected to the suction end of the gear pump, and a discharge hose is fixedly connected to the discharge end of the gear pump. A quantitative filling mechanism is provided at the bottom of the liquid filling machine body. The quantitative filling mechanism includes a fixed column, an electric telescopic rod, a measuring cylinder, a one-way connector, a filling tube, a solenoid valve, a liquid quantitative holding assembly, and a limiting and stopping assembly. The fixed column is fixedly installed at the bottom of the liquid filling machine body, the electric telescopic rod is fixedly installed at the bottom end of the fixed column, the measuring cylinder is fixedly installed at the output shaft end of the electric telescopic rod, the one-way connector is fixedly connected to the left side wall of the measuring cylinder, the end of the discharge hose away from the gear pump is fixedly connected to the one-way connector, the filling tube is fixedly connected to the bottom of the measuring cylinder, and the solenoid valve is fixedly installed on the filling tube.

[0007] A further feature of this application is that a cover plate located below the solenoid valve is fixedly sleeved on the filling tube.

[0008] A further configuration of this application is as follows: the liquid metering assembly includes an electric telescopic rod II, a push plate, a U-shaped indicator rod, and a graduation line. The electric telescopic rod II is fixedly installed on the top inner wall of the measuring cylinder. The push plate is fixedly installed on the output shaft end of the electric telescopic rod II. The push plate slides and seals against the inner wall of the measuring cylinder. The U-shaped indicator rod is fixedly installed on the top of the push plate. One end of the U-shaped indicator rod extends to the outside of the measuring cylinder and is located on the right side of the measuring cylinder. The graduation line is printed on the right outer wall of the measuring cylinder.

[0009] A further feature of this application is that the top of the measuring cylinder has an clearance hole, through which a U-shaped indicator rod passes.

[0010] A further feature of this application is that a pressure sensor is fixedly embedded in the bottom of the push plate.

[0011] A further configuration of this application is as follows: the limiting and blocking assembly includes an electric telescopic rod three and a stop block. The electric telescopic rod three is fixedly installed on the top of the measuring cylinder and located to the left of the electric telescopic rod one. The output shaft end of the electric telescopic rod three extends into the measuring cylinder. The stop block is fixedly installed on the output shaft end of the electric telescopic rod three, and the bottom end of the stop block abuts against the top of the push plate.

[0012] A further feature of this application is that a controller is fixedly installed on the front outer wall of the liquid filling machine body. The controller is equipped with a display screen and multiple control buttons. The gear pump, electric telescopic rod one, solenoid valve, electric telescopic rod two, electric telescopic rod three, and pressure sensor are all electrically connected to the controller.

[0013] A further provision of this application is that the bottom surface of the pressure sensor is flush with the bottom surface of the push plate.

[0014] This application includes at least one of the following beneficial technical effects:

[0015] This application utilizes a quantitative filling mechanism to ensure accurate batch filling of bottles of the same model without changing the height of the stop. Furthermore, by adjusting the height of the push plate and the stop, the filling volume can be precisely adjusted, making it suitable for accurate filling of different models of bottles. The operation is simple and convenient, improving work efficiency. Attached Figure Description

[0016] Figure 1 This is a front-view stereoscopic structural diagram of this embodiment.

[0017] Figure 2 This is a bottom-view three-dimensional structural diagram of this embodiment.

[0018] Figure 3 This is a front-view three-dimensional structural diagram of a quantitative filling mechanism.

[0019] Figure 4 This is a front view sectional three-dimensional structural diagram of the quantitative filling mechanism.

[0020] In the diagram: 1. Base; 2. Column; 3. Liquid filling machine body; 4. Gear pump; 5. Suction hose; 6. Discharge hose; 7. Fixed column; 8. Electric telescopic rod one; 9. Measuring cylinder; 10. One-way pipe connector; 11. Filling pipe; 12. Solenoid valve; 13. Cover plate; 14. Electric telescopic rod two; 15. Push plate; 16. Electric telescopic rod three; 17. Stop block; 18. Pressure sensor; 19. U-shaped indicator rod; 20. Scale line; 21. Controller. Detailed Implementation

[0021] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] See Figure 1 , Figure 2 , Figure 3 and Figure 4This application provides a semi-automatic gear pump liquid filling machine, including a base 1. Columns 2 are fixedly installed at the four corners of the top of the base 1. A liquid filling machine body 3 is fixedly installed at the top of the four columns 2. A gear pump 4 is fixedly installed on the front outer wall of the liquid filling machine body 3. A suction hose 5 is fixedly connected to the suction end of the gear pump 4, and a discharge hose 6 is fixedly connected to the discharge end of the gear pump 4. A quantitative filling mechanism is provided at the bottom of the liquid filling machine body 3. The quantitative filling mechanism includes a fixed column 7, an electric telescopic rod 8, a measuring cylinder 9, a one-way pipe connector 10, a filling pipe 11, a solenoid valve 12, a liquid quantitative container assembly, and a limit stop assembly. The fixed column 7 is fixedly installed at the bottom of the liquid filling machine body 3, and the electric telescopic rod 8 is fixedly installed at the bottom of the fixed column 7. At the bottom of column 7, measuring cylinder 9 is fixedly installed at the output shaft end of electric telescopic rod 8. One-way pipe connector 10 is fixedly connected to the left side wall of measuring cylinder 9. The end of liquid outlet hose 6 away from gear pump 4 is fixedly connected to one-way pipe connector 10. Filling pipe 11 is fixedly connected to the bottom of measuring cylinder 9. Solenoid valve 12 is fixedly installed on filling pipe 11. Liquid can be pumped using gear pump 4. Insert the end of suction hose 5 away from gear pump 4 into the liquid-containing tank. Turn on gear pump 4 to pump the liquid from the liquid-containing tank into measuring cylinder 9. Using the telescopic characteristic of electric telescopic rod 8, the vertical lifting and lowering of measuring cylinder 9 can be controlled. Then, the bottom end of filling pipe 11 can be inserted into the filling bottle containing liquid for subsequent quantitative filling.

[0023] In this embodiment, a cover plate 13 located below the solenoid valve 12 is fixedly sleeved on the filling tube 11. The cover plate 13 is used to seal the mouth of the filling bottle containing liquid and prevent liquid from splashing out when filling the bottle with liquid.

[0024] In this embodiment, the liquid metering assembly includes a second electric telescopic rod 14, a push plate 15, a U-shaped indicator rod 19, and a scale line 20. The second electric telescopic rod 14 is fixedly installed on the top inner wall of the measuring cylinder 9. The push plate 15 is fixedly installed on the output shaft end of the second electric telescopic rod 14, and the push plate 15 slides and seals against the inner wall of the measuring cylinder 9. The U-shaped indicator rod 19 is fixedly installed on the top of the push plate 15, with one end extending outside the measuring cylinder 9 and located on the right side of the measuring cylinder 9. The scale line 20 is printed on the right outer wall of the measuring cylinder 9. Utilizing the telescopic characteristics of the second electric telescopic rod 14, the push plate 15 can be driven. The U-shaped indicator rod 19 moves vertically within the measuring cylinder 9, allowing it to follow the vertical movement of the push plate 15. This, combined with the intuitive display of the scale line 20, allows operators to easily see the volume of the space below the push plate 15 within the measuring cylinder 9, facilitating quantitative filling operations. Furthermore, by adjusting the height of the push plate 15, the volume of the space below the push plate 15 within the measuring cylinder 9 can be altered. It should be noted that the bottom of the U-shaped indicator rod 19, located outside the measuring cylinder 9, is flush with the bottom surface of the push plate 15, thus accurately determining the volume of the space below the push plate 15 within the measuring cylinder 9.

[0025] In this embodiment, a clearance hole is provided at the top of the measuring cylinder 9, and the U-shaped indicator rod 19 passes through the clearance hole to ensure that the U-shaped indicator rod 19 moves smoothly and will not touch the measuring cylinder 9.

[0026] In this embodiment, a pressure sensor 18 is fixedly embedded in the bottom of the push plate 15. The bottom surface of the pressure sensor 18 is flush with the bottom surface of the push plate 15. The setting of the pressure sensor 18 further enhances the precision control of the filling volume. When the liquid is pumped into the measuring cylinder 9, the liquid will exert an upward force on the pressure sensor 18 when the push plate 15 contacts the liquid. Through this pressure value (which can be experimentally set in advance at the factory), it can be determined that the volume of liquid pumped into the measuring cylinder 9 meets the standard, and subsequent filling can be carried out.

[0027] In this embodiment, the limiting and blocking assembly includes an electric telescopic rod 16 and a stop block 17. The electric telescopic rod 16 is fixedly installed on the top of the measuring cylinder 9 and located to the left of the electric telescopic rod 8. The output shaft end of the electric telescopic rod 16 extends into the measuring cylinder 9. The stop block 17 is fixedly installed on the output shaft end of the electric telescopic rod 16. The bottom end of the stop block 17 abuts against the top of the push plate 15. By utilizing the telescopic characteristics of the electric telescopic rod 16, the height position of the stop block 17 can be adjusted. The stop block 17 can be used to block and limit the upward movement of the push plate 15, thereby ensuring that the filling capacity is the same each time without changing the height position of the stop block 17.

[0028] In this embodiment, a controller 21 is fixedly installed on the front outer wall of the liquid filling machine body 3. The controller 21 is equipped with a display screen and multiple control buttons. The gear pump 4, electric telescopic rod 1 8, solenoid valve 12, electric telescopic rod 2 14, electric telescopic rod 3 16, and pressure sensor 18 are all electrically connected to the controller 21. The multiple control buttons can be used to control the power-on operation and shutdown of the gear pump 4, electric telescopic rod 1 8, solenoid valve 12, electric telescopic rod 2 14, electric telescopic rod 3 16, and pressure sensor 18, respectively. The pressure value monitored by the pressure sensor 18 can be displayed on the display screen for easy viewing by the staff. The electrical connection and control methods of the gear pump 4, electric telescopic rod 1 8, solenoid valve 12, electric telescopic rod 2 14, electric telescopic rod 3 16, pressure sensor 18, and controller 21 are mature technologies in the field and have been fully disclosed, so they will not be described in detail here.

[0029] With the above structure, the working principle of the semi-automatic gear pump liquid filling machine provided in this application is as follows:

[0030] Before filling, the operator places the end of the suction hose 5 away from the gear pump 4 into the container holding the liquid. Then, according to the capacity of the filling bottle, the operator controls the extension or retraction of the electric telescopic rod 14 to control the vertical movement of the push plate 15. The U-shaped indicator rod 19 will follow the vertical movement of the push plate 15. By combining the U-shaped indicator rod 19 with the intuitive display of the scale line 20, the operator can intuitively see the volume of the space below the push plate 15 in the measuring cylinder 9. When the volume of the space below the push plate 15 in the measuring cylinder 9 is adjusted to the target value, the electric telescopic rod 14 is stopped. Then, the electric telescopic rod 16 is extended to push the stop 17 vertically downward until the stop 17 touches the push plate 15. At this time, the electric telescopic rod 16 stops the rise of the push plate 15, thus ensuring that the rise of the push plate 15 is consistent each time, that is, the liquid filling volume is the same each time.

[0031] After the above preparations are completed, during filling, place a liquid-filled bottle on the machine base 1, ensuring the bottle opening is directly below the filling tube 11. Then, control the electric telescopic rod 8 to extend, causing the measuring cylinder 9 to descend vertically until the bottom end of the filling tube 11 is inserted into the bottle opening and the cap 13 touches the bottle opening. Stop the electric telescopic rod 8. Next, control the gear pump 4 to operate. The gear pump 4 generates suction, drawing the liquid along the suction hose 5, and then delivering it to the measuring cylinder 9 via the discharge hose 6 and one-way connector 10. When the liquid entering the measuring cylinder 9 contacts the lower surface of the push plate 15, the liquid exerts an upward force on the pressure sensor 18. The pressure value detected by the pressure sensor 18 is displayed on the screen, indicating that the liquid volume pumped in the measuring cylinder 9 has reached the standard. The gear pump 4 can then be stopped. The solenoid valve 12 is then opened, and the electric telescopic rod 14 is extended. The push plate 15 is lowered vertically, pushing all the liquid in the measuring cylinder 9 into the filling bottle, thus completing the filling operation. After filling, the solenoid valve 12 is closed, and the electric telescopic rod 14 is retracted until the push plate 15 rises to contact the stop block 17. Then, the electric telescopic rod 8 is extended and retracted, causing the measuring cylinder 9 to rise back to its original position. The bottom end of the filling tube 11 moves out of the bottle opening, and the filled bottle can then be removed.

[0032] Following the above operating steps, the next liquid-filled bottle can be filled. By not changing the height of the stop 17, it can be ensured that the push plate 15 rises and returns to the same position each time, which can guarantee accurate batch filling of the same type of bottle. Moreover, by adjusting the height of the push plate 15 and the stop 17, the filling volume can be precisely adjusted, which is suitable for accurate filling of different types of bottles.

Claims

1. A semi-automatic gear pump liquid filling machine, characterized in that, The system includes a base (1), with columns (2) fixedly installed at the four corners of the top of the base (1). A liquid filling machine body (3) is fixedly installed at the top of each of the four columns (2). A gear pump (4) is fixedly installed on the front outer wall of the liquid filling machine body (3). A suction hose (5) is fixedly connected to the suction end of the gear pump (4), and a discharge hose (6) is fixedly connected to the discharge end of the gear pump (4). A quantitative filling mechanism is provided at the bottom of the liquid filling machine body (3). The quantitative filling mechanism includes a fixed column (7), an electric telescopic rod (8), a measuring cylinder (9), a one-way pipe connector (10), a filling pipe (11), and a solenoid valve ( ). 12) Liquid metering container and limiting stop assembly, the fixed column (7) is fixedly installed at the bottom of the liquid filling machine body (3), the electric telescopic rod (8) is fixedly installed at the bottom end of the fixed column (7), the measuring cylinder (9) is fixedly installed at the output shaft end of the electric telescopic rod (8), the one-way pipe joint (10) is fixedly connected to the left side wall of the measuring cylinder (9), the end of the liquid outlet hose (6) away from the gear pump (4) is fixedly connected to the one-way pipe joint (10), the filling pipe (11) is fixedly connected to the bottom of the measuring cylinder (9), and the solenoid valve (12) is fixedly installed on the filling pipe (11).

2. The semi-automatic gear pump liquid filling machine according to claim 1, characterized in that: A cover plate (13) located below the solenoid valve (12) is fixedly sleeved on the filling tube (11).

3. The semi-automatic gear pump liquid filling machine according to claim 2, characterized in that: The liquid metering assembly includes an electric telescopic rod (14), a push plate (15), a U-shaped indicator rod (19), and a scale line (20). The electric telescopic rod (14) is fixedly installed on the top inner wall of the measuring cylinder (9). The push plate (15) is fixedly installed on the output shaft end of the electric telescopic rod (14). The push plate (15) slides and seals against the inner wall of the measuring cylinder (9). The U-shaped indicator rod (19) is fixedly installed on the top of the push plate (15). One end of the U-shaped indicator rod (19) extends to the outside of the measuring cylinder (9) and is located on the right side of the measuring cylinder (9). The scale line (20) is engraved on the right outer wall of the measuring cylinder (9).

4. The semi-automatic gear pump liquid filling machine according to claim 3, characterized in that: The top of the measuring cylinder (9) is provided with a clearance hole, and the U-shaped indicator rod (19) passes through the clearance hole.

5. The semi-automatic gear pump liquid filling machine according to claim 3, characterized in that: A pressure sensor (18) is fixedly embedded in the bottom of the push plate (15).

6. The semi-automatic gear pump liquid filling machine according to claim 5, characterized in that: The limiting and blocking assembly includes an electric telescopic rod three (16) and a stop block (17). The electric telescopic rod three (16) is fixedly installed on the top of the measuring cylinder (9) and located to the left of the electric telescopic rod one (8). The output shaft end of the electric telescopic rod three (16) extends into the measuring cylinder (9). The stop block (17) is fixedly installed on the output shaft end of the electric telescopic rod three (16). The bottom end of the stop block (17) abuts against the top of the push plate (15).

7. The semi-automatic gear pump liquid filling machine according to claim 6, characterized in that: A controller (21) is fixedly installed on the front outer wall of the liquid filling machine body (3). The controller (21) is equipped with a display screen and multiple control buttons. The gear pump (4), electric telescopic rod one (8), solenoid valve (12), electric telescopic rod two (14), electric telescopic rod three (16) and pressure sensor (18) are all electrically connected to the controller (21).

8. The semi-automatic gear pump liquid filling machine according to claim 5, characterized in that: The bottom surface of the pressure sensor (18) is flush with the bottom surface of the push plate (15).

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