A material filling system and a material filling method

Abstract

This invention discloses a material filling system, including a buffer tank, an inlet pipe, and a dispensing tank. The inlet pipe connects the buffer tank and the dispensing tank, and is equipped with an inlet valve and a flow meter. The buffer tank is located above the dispensing tank. The upper part of the dispensing tank is a positive cone, and the lower part is an inverted cone. A filling nozzle is located at the bottom of the inverted cone, and an vent pipe is connected to the top of the positive cone. The vent pipe is equipped with an vent valve and a liquid level detector. A material filling method using the above-mentioned material filling system is also disclosed, comprising the following steps: venting before filling; filling. This material filling system and method have advantages such as avoiding liquid damage, air trapping, and leakage during the filling process, and improving filling quality and effect.

Description

Technical Field

[0001] This invention relates to the field of food and pharmaceutical packaging machinery and equipment, and in particular to a material filling system and a material filling method. Background Technology

[0002] The non-destructive quantitative dispensing device for particulate matter, application number 201420497078.4, includes an injection water storage tank, an injection water peristaltic pump, an injection valve, a rigid container for storing wet resin, and a dispensing valve; the injection water storage tank, injection water peristaltic pump, injection valve, rigid container, and dispensing valve are connected in series. Working principle: Addressing the characteristics of high-performance adsorbent resin particles being easily broken and unable to be mechanically controlled, this device utilizes the physical principle that a sealed rigid container will not leak as long as air is not introduced through the small opening at the bottom. When a quantitative amount of injection water is injected into the sealed rigid container, an equal amount of wet resin will flow out through the bottom opening, achieving quantitative non-destructive dispensing of adsorbent resin particles. The injection water is dispensed via the injection water peristaltic pump, which disturbs the injection water, making it difficult to completely guarantee that the resin particles will not be damaged during filling. Meanwhile, the top of the rigid container is cylindrical, which makes it easy for air to get trapped, making it difficult to ensure the stability of atmospheric sealing during the filling process and unable to avoid dripping during the filling process; in addition, the discharge part at the bottom of the rigid container is cylindrical, which is abruptly different in size from the inside of the rigid container, making it impossible for resin particles to fall into the filling needle smoothly and orderly during the filling process, thus affecting the filling effect. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a material filling system and material filling method that avoids liquid damage, air trapping and leakage during the filling process and improves filling quality and filling effect.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A material filling system includes a buffer tank, an inlet pipe, and a dispensing tank. The inlet pipe is connected between the buffer tank and the dispensing tank and is equipped with an inlet valve and a flow meter. The buffer tank is located above the dispensing tank. The upper part of the dispensing tank is a positive cone and the lower part is an inverted cone. The bottom of the inverted cone is equipped with a filling nozzle, and the top of the positive cone is connected to an exhaust pipe. The exhaust pipe is equipped with an exhaust valve and a liquid level detector.

[0005] As a further improvement to the above technical solution: The filling nozzle is detachably connected to the inverted cone portion.

[0006] The filling nozzle is provided with a transition channel and a conical discharge channel, and the discharge channel is connected to the interior of the inverted cone through the transition channel.

[0007] The top of the positive cone is provided with a conical cap, and the liquid inlet pipe is connected to the conical cap.

[0008] The conical cap is detachably fixed to the conical portion.

[0009] The inlet pipe is connected to the vent valve and the vent pipe between the dispensing tank.

[0010] The bottom of the buffer tank is connected to the inlet pipe, and the top of the buffer tank is equipped with a replenishment pipe and a level gauge. The replenishment pipe is equipped with a replenishment valve.

[0011] The material filling system also includes a breather, and both the buffer tank and the dispensing tank are connected to the breather.

[0012] A material filling method, using the above-mentioned material filling system, includes the following steps: S1. Exhausting air before filling: Close the filling nozzle, open the exhaust valve and the liquid inlet valve. The liquid in the buffer tank enters the dispensing tank through the liquid inlet pipe. The air in the dispensing tank is discharged through the exhaust pipe. When the liquid level detector detects the liquid, close the exhaust valve and the liquid inlet valve. Exhausting is complete. S2. Filling: Open the filling nozzle and the liquid inlet valve to fill. After filling is completed, close the liquid inlet valve. The filling nozzle will automatically close under the action of external atmospheric pressure.

[0013] As a further improvement to the above technical solution: Before step S1, solid material is added to the dispensing tank.

[0014] Compared with the prior art, the advantages of the present invention are as follows: The material filling system of this invention completes the filling process by opening and closing the inlet valve, eliminating the need for a filling pump and avoiding damage to the liquid material caused by the pump, thus improving filling quality. Simultaneously, the upper part of the dispensing tank is a positive cone. After the liquid material enters, as the liquid level rises, the positive cone guides the airflow above the liquid surface, directing air in the dispensing tank to the exhaust pipe for complete expulsion, preventing air trapping inside the tank, ensuring the stability of atmospheric sealing during filling, and preventing leakage. Furthermore, the lower part of the dispensing tank is an inverted cone, reducing abrupt changes in the size of the lower discharge section, providing a smooth transition and improving filling efficiency. This material filling system avoids liquid material damage, air trapping, and leakage during filling, improving both filling quality and effect.

[0015] The material filling method of the present invention uses a material filling system, which has all the advantages of using a material filling system, namely, avoiding liquid damage, air trapping and leakage during the filling process, and improving filling quality and filling effect. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of the material filling system of the present invention.

[0017] Figure 2 This is a schematic diagram of the material filling system of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the dispensing tank of the material filling system of the present invention.

[0019] Figure 4 This is a cross-sectional view of the filling nozzle of the material filling system of the present invention.

[0020] The labels in the diagram represent: 1. Buffer tank; 11. Replenishment pipe; 12. Level gauge; 2. Inlet pipe; 21. Inlet valve; 22. Flow meter; 3. Dispensing tank; 31. Straight cylinder section; 32. Positive cone section; 33. Inverted cone section; 4. Filling nozzle; 41. Transition channel; 42. Discharge channel; 5. Clamp; 6. Conical cap; 7. Exhaust pipe; 71. Exhaust valve; 72. Level detector; 8. Replenishment valve; 9. Breather. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1: Figures 1 to 4 An embodiment of the material filling system of the present invention is shown. The material filling system of this embodiment includes a buffer tank 1, an inlet pipe 2, and a dispensing tank 3. The inlet pipe 2 is connected between the buffer tank 1 and the dispensing tank 3. The inlet pipe 2 is provided with an inlet valve 21 and a flow meter 22. The buffer tank 1 is located above the dispensing tank 3. The upper part of the dispensing tank 3 is a positive cone 32 and the lower part is an inverted cone 33. The bottom of the inverted cone 33 is provided with a filling nozzle 4. The top of the positive cone 32 is connected to an exhaust pipe 7. The exhaust pipe 7 is provided with an exhaust valve 71 and a liquid level detector 72.

[0023] Material filling process: First, close the filling nozzle 4, open the vent valve 71 and the liquid inlet valve 21. The liquid in the buffer tank 1 enters the dispensing tank 3 through the liquid inlet pipe 2. The air in the dispensing tank 3 is discharged through the vent pipe 7. When the liquid level detector 72 detects the liquid level, close the vent valve 71 and the liquid inlet valve 21 to complete the discharge of gas in the dispensing tank 3. Then, open the filling nozzle 4 and the liquid inlet valve 21 to carry out filling. After filling is completed, close the liquid inlet valve 21. The filling nozzle 4 is automatically closed under the action of external atmospheric pressure.

[0024] This material filling system completes the filling process by opening and closing the inlet valve 21, eliminating the need for a filling pump and avoiding damage to the liquid material, thus improving filling quality. Simultaneously, the upper part of the dispensing tank 3 is a positive cone 32. After the liquid material enters, as the liquid level rises, the positive cone 32 guides the airflow above the liquid surface, directing air in the dispensing tank 3 to the exhaust pipe 7 for complete expulsion, preventing air trapping inside the dispensing tank 3 and ensuring the stability of atmospheric sealing during the filling process, thus preventing leakage. Furthermore, the lower part of the dispensing tank 3 is an inverted cone 33, reducing abrupt changes in the size of the discharge section at the bottom of the dispensing tank 3, resulting in a smoother transition and improved filling effect. This material filling system avoids liquid damage, air trapping, and leakage during the filling process, improving both filling quality and effect.

[0025] In this embodiment, the filling nozzle 4 and the inverted cone portion 33 are detachably connected, for example, the filling nozzle 4 and the inverted cone portion 33 are connected by a clamp 5. This facilitates the replacement of the filling nozzle 4.

[0026] In this embodiment, the filling nozzle 4 is provided with a transition channel 41 and a conical discharge channel 42. The discharge channel 42 is connected to the interior of the inverted cone portion 33 through the transition channel 41. The material in the dispensing tank 3 flows out sequentially through the inverted cone portion 33, the transition channel 41, and the discharge channel 42. The constriction of the inverted cone portion 33 and the discharge channel 42 ensures that the material flows out smoothly and orderly during the filling process, avoiding disturbance to the material in the dispensing tank 3, ensuring product consistency, and ensuring the closing effect of the filling nozzle 4 under external atmospheric pressure. The transition channel 41 is cylindrical, and the discharge channel 42 is V-shaped. The transition channel 41 can pre-buffer the material for the next filling.

[0027] In this embodiment, a conical cap 6 is provided at the top of the positive cone portion 32, and the liquid inlet pipe 2 is connected to the conical cap 6.

[0028] The middle part of the dispensing tank 3 is a straight cylindrical section 31, which is combined with a conical section 32, resulting in a smooth transition inside the tank. The top of the dispensing tank 3 is equipped with a conical cap 6 to prevent air from accumulating inside the tank, ensuring stable atmospheric sealing during the filling process and avoiding leakage.

[0029] In this embodiment, the conical cap 6 is detachably fixed to the conical portion 32. This facilitates opening the conical cap 6 to add material (generally a solid material) into the dispensing tank 3.

[0030] In this embodiment, the inlet pipe 2 is connected to the vent valve 71 and the vent pipe 7 between the dispensing tank 3. This reduces the number of pipes and simplifies the structure.

[0031] In this embodiment, the bottom of the buffer tank 1 is connected to the inlet pipe 2, and the top of the buffer tank 1 is provided with a replenishment pipe 11 and a level gauge 12. The replenishment pipe 11 is provided with a replenishment valve 8. The replenishment pipe 11 is used to connect to an external liquid material source, and liquid material (liquid solvent) can be replenished into the buffer tank 1 by opening the replenishment valve 8.

[0032] In this embodiment, the material filling system also includes a breather 9, and the buffer tank 1 and the dispensing tank 3 are both connected to the breather 9. The buffer tank 1 and the dispensing tank 3 are connected to the breather 9 through pipelines, enabling them to communicate with the atmosphere.

[0033] The bottom of the filling nozzle 4 is equipped with an openable and closable sealing plate. During the filling process of solid-liquid mixture, the liquid material flows in from the top center of the dispensing tank 3, which tends to have a uniform effect on all parts of the dispensing tank 3, improves the uniformity of solid-liquid mixing, and ensures filling accuracy and consistency.

[0034] Example 2: A material filling method, using the material filling system of Example 1, includes the following steps: S1. Exhausting air before filling: Close the filling nozzle 4, open the exhaust valve 71 and the liquid inlet valve 21. The liquid in the buffer tank 1 enters the dispensing tank 3 through the liquid inlet pipe 2. The air in the dispensing tank 3 is discharged through the exhaust pipe 7. When the liquid level detector 72 detects the liquid, close the exhaust valve 71 and the liquid inlet valve 21. Exhausting is completed. S2. Filling: Open the filling nozzle 4 and the liquid inlet valve 21 to fill. After filling is completed, close the liquid inlet valve 21. The filling nozzle 4 will automatically close under the action of external atmospheric pressure.

[0035] In this embodiment, before step S1, materials are added to the dispensing tank 3.

[0036] This material filling method uses a material filling system, which has all the advantages of a material filling system, namely avoiding liquid damage, air trapping and leakage during the filling process, thus improving filling quality and filling effect.

[0037] Example 3: A material filling method, using the material filling system of Example 1, includes the following steps: The first step, the pre-filling preparation stage, involves sealing the bottom filling port of the dispensing tank 3, opening the top conical cap 6, and adding solid material into the dispensing tank 3 through the opening. Then, the conical cap 6 is replaced. The second step, the system is vented before filling. The vent valve 71 is opened, and the inlet valve 21 is opened. Liquid solvent is added to the dispensing tank 3 from the buffer tank 1. During the addition process, gas in the dispensing tank 3 overflows from the vent pipe 7 until the liquid level detector 72 (liquid level switch) on the vent pipe 7 detects liquid, confirming the presence of gas in the dispensing tank 3 and the inlet pipe. After the liquid is discharged, close the inlet valve 21, close the exhaust valve 71, and open the sealing plate of the filling nozzle 4 at the bottom of the dispensing tank 3 to prepare for filling; the third step is to carry out the filling. Open the inlet valve 21, and the liquid solvent in the buffer tank 1 will enter the top of the dispensing tank 3 by gravity flow. The solid-liquid mixture at the bottom of the dispensing tank 3 will be replaced and flow out evenly from the filling nozzle 4. The filling volume is measured by the flow meter 22. After the set value is reached, close the inlet valve 21 to stop the filling. The filling nozzle 4 at the bottom of the dispensing tank 3 will be automatically sealed by atmospheric pressure combined with surface tension.

[0038] This material filling method effectively avoids damage to solid materials during the filling process, while ensuring the solid-liquid mixing ratio and guaranteeing uniform mixing in each filling, thus ensuring product consistency. During the solid-liquid mixture filling process, the liquid material flows in from the top center of the dispensing tank 3, resulting in a more uniform effect throughout the tank, improving the uniformity of solid-liquid mixing and ensuring filling accuracy and consistency.

[0039] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A material filling system comprising a buffer tank (1), a liquid inlet pipe (2) and a sub-packaging tank (3), the liquid inlet pipe (2) being connected between the buffer tank (1) and the sub-packaging tank (3), characterized in that: The inlet pipe (2) is equipped with an inlet valve (21) and a flow meter (22). The buffer tank (1) is located above the dispensing tank (3). The liquid solvent in the buffer tank (1) enters the dispensing tank (3) by gravity. The upper part of the dispensing tank (3) is a positive cone (32) and the lower part is an inverted cone (33). The bottom of the inverted cone (33) is equipped with a filling nozzle (4). The top of the positive cone (32) is connected to an exhaust pipe (7). The exhaust pipe (7) is equipped with an exhaust valve (71) and a liquid level detector (72). When the liquid level detector (72) detects liquid, the dispensing tank (3) completes the exhaust. The filling nozzle (4) is used to open for filling when the inlet valve (21) is open and to automatically close under the action of external atmospheric pressure when the inlet valve (21) is closed.

2. The material filling system according to claim 1, characterized in that: The filling nozzle (4) is detachably connected to the inverted cone portion (33).

3. The material filling system according to claim 1, characterized in that: The filling nozzle (4) is provided with a transition channel (41) and a cone-shaped discharge channel (42), and the discharge channel (42) is connected to the interior of the inverted cone (33) through the transition channel (41).

4. The material filling system according to claim 1, characterized in that: The top of the positive cone (32) is provided with a conical cap (6), and the liquid inlet pipe (2) is connected to the conical cap (6).

5. The material filling system according to claim 4, characterized in that: The conical cap (6) is detachably fixed to the conical part (32).

6. The material filling system according to claim 1, characterized in that: The inlet pipe (2) is connected to the vent pipe (7) between the vent valve (71) and the dispensing tank (3).

7. The material filling system according to any one of claims 1 to 6, characterized in that: The bottom of the buffer tank (1) is connected to the inlet pipe (2), and the top of the buffer tank (1) is provided with a replenishment pipe (11) and a level gauge (12). The replenishment pipe (11) is provided with a replenishment valve (8).

8. The material filling system according to any one of claims 1 to 6, characterized in that: The material filling system also includes a breather (9), and the buffer tank (1) and the dispensing tank (3) are both connected to the breather (9).

9. A material filling method, characterized in that, The material filling system described in any one of claims 1 to 8 is used, comprising the following steps: S1. Exhausting before filling: Close the filling nozzle (4), open the exhaust valve (71) and the liquid inlet valve (21), the liquid in the buffer tank (1) enters the dispensing tank (3) through the liquid inlet pipe (2), the air in the dispensing tank (3) is discharged through the exhaust pipe (7), when the liquid level detector (72) detects the liquid, close the exhaust valve (71) and the liquid inlet valve (21), and the exhaust is completed; S2. Filling: Open the filling nozzle (4) and the liquid inlet valve (21) for filling. After filling is completed, close the liquid inlet valve (21). The filling nozzle (4) will automatically close under the action of external atmospheric pressure.

10. The material filling method according to claim 9, characterized in that: Before step S1, solid material is added to the dispensing tank (3).

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