Quantitative paste filling mechanism with adjustable pressure
By using a linear array of piston cylinders and nozzles, combined with a proportional valve, water pump, and check valve, the paste filling device solves the problem of insufficient quantitative reflux in paste filling devices, achieving efficient and accurate paste filling and raw material recycling, thereby improving production efficiency and equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG YIZHAO PHARM MASCH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-01
AI Technical Summary
Existing paste filling equipment lacks a quantitative reflux function, resulting in paste residue remaining in the buffer tank after quantitative filling, which affects filling accuracy.
By employing a linear array of piston cylinders and nozzles, combined with proportional valves, water pumps, and check valves, quantitative control of raw materials and recycling of excess raw materials are achieved. The raw materials are quantitatively sprayed from the nozzles through a transmission pipe and returned to the piston cylinders, and automated conveying is achieved in conjunction with a conveyor belt and motor.
It achieves efficient and precise paste filling, reduces raw material waste, improves production efficiency and equipment reliability, and supports mass production.
Smart Images

Figure CN224185845U_ABST
Abstract
Description
A pressure-adjustable quantitative paste filling mechanism Technical Field
[0001] This utility model relates to the field of paste filling, and in particular to a pressure-adjustable quantitative paste filling mechanism. Background Technology
[0002] The paste filling device is an automated machine used for precisely filling viscous paste materials (such as cosmetics, pharmaceuticals, and food). Its core structure includes a storage tank, a delivery pump, a metering system (such as a piston cylinder or screw mechanism), a filling head, and a transmission control system. This device ensures consistent filling volume with a high-precision metering mechanism and employs an anti-drip design to prevent contamination. Suitable for pastes of varying viscosities, it can be integrated with production lines for high-speed production and is widely used in the daily chemical and pharmaceutical industries, offering advantages such as high efficiency, hygiene, and raw material savings.
[0003] A search revealed patent publication number CN219077639U, which discloses a production equipment for paste filling, relating to the technical field of paste filling equipment. This equipment includes a first conveyor belt and a second conveyor belt disposed on one side of the first conveyor belt. Both the first and second conveyor belts are equipped with balm boxes. A hot-fill machine is disposed on one side of both the first and second conveyor belts. A third conveyor belt is disposed at the output end of the first conveyor belt, and a fourth conveyor belt is installed at the output end of the second conveyor belt, with the other end of the fourth conveyor belt connected to the output end of the third conveyor belt. A tunnel-type quick-freezing machine is disposed in the middle of the third conveyor belt. The fourth conveyor belt is 90-degree in shape. Pushing components are disposed on one side of the output ends of both the first and second conveyor belts. This improved invention adds a third conveyor belt, allowing for the combination of two hot-fill machines and one freezing tunnel, resulting in lower costs, increased production capacity, and reduced investment costs.
[0004] While existing technologies can achieve certain paste filling effects, they suffer from the following drawback: the lack of a quantitative reflux function in existing paste filling systems results in paste residue remaining in the buffer tank after quantitative filling. This makes it impossible to determine the filling volume for the next filling, affecting the accuracy of the filling. In view of this, we propose a pressure-adjustable quantitative paste filling mechanism to solve the above problems. Summary of the Invention
[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a pressure-adjustable quantitative paste filling mechanism.
[0006] The technical solution of this utility model is as follows: a pressure-adjustable quantitative paste filling mechanism, including a box, a collection tank, a nozzle and a proportional valve. The upper end of the box is provided with piston cylinders arranged in a linear array, the upper end of the piston cylinder is provided with a collection tank, the upper end of the box is provided with a fixing frame, the upper end of the fixing frame is provided with nozzles arranged in a linear array, and the upper end of the nozzle is provided with a proportional valve.
[0007] When in use, this device can fill the collection tank with the raw material to be filled, and then use the built-in pump to transfer the raw material through the third transmission pipe to the piston cylinder. The piston cylinder then drives the raw material upward to flow. After being metered through the proportional valve in the second transmission pipe, it is sprayed from the nozzle into the can at the top of the conveyor belt. After the proportional valve metering, the excess raw material will be driven by the water pump and flow from the first transmission pipe through the one-way valve into the piston cylinder to participate in the next cycle. This device has the design concept of convenient metering and realizing the return of excess raw material. Multiple parallel filling elements can be used for batch filling, which has high practicality.
[0008] Preferably, a transmission pipe is provided between the collection tank and the piston cylinder. The collection tank has a built-in pump body for transmitting raw materials. The pump body and the transmission pipe realize automatic delivery of raw materials, reduce manual intervention, and improve the continuity and stability of the filling process.
[0009] Preferably, the upper end of the box is provided with a mounting base, the upper end of the mounting base is provided with a conveyor belt, and a motor is provided on one side of the outer wall of the mounting base. The output shaft of the motor is fixedly connected to the rotation center of one side of the conveyor belt. The conveyor belt and the motor work together to realize automated conveying, ensuring that containers such as cans are accurately positioned to the filling position, and improving the overall coordination of the production line and the filling accuracy.
[0010] Preferably, a water pump is fixed to one side of the proportional valve, and a transmission pipe is provided between the water pump and the piston cylinder. The water pump and the proportional valve work together to optimize fluid control, ensure that excess raw materials can be stably returned to the piston cylinder, reduce raw material loss and improve recycling rate.
[0011] Preferably, a one-way valve is fixed at the upper end of the piston cylinder. The one-way valve is connected to the transmission pipe. The one-way valve prevents the raw material from flowing back, maintains the internal pressure of the piston cylinder, ensures a smooth filling process, and improves the reliability of the system.
[0012] Preferably, a control box is provided on one side of the box, a base is fixed to the lower end of the box, and a bracket is fixed between the box and the collection tank. The control box facilitates centralized control of the equipment operating parameters, and the base and bracket enhance the overall structural stability, ensuring the long-term stable operation of the equipment.
[0013] Preferably, a second transmission pipe is provided between the upper end of the piston cylinder and the proportional valve. The second transmission pipe serves as the main filling channel to ensure that the raw material is accurately delivered from the piston cylinder to the nozzle, thereby improving filling efficiency and consistency.
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] I. This utility model adopts a linear array of piston cylinders and nozzles, which can realize synchronous filling at multiple stations and improve production efficiency; the proportional valve precisely controls the raw material flow rate to ensure consistent filling volume and reduce waste; excess raw materials can be recycled and reused to reduce production costs.
[0016] II. Based on the first beneficial effect, this device achieves efficient and precise batch filling through a linear array of piston cylinders and nozzles. Combined with components such as proportional valves, water pumps, and check valves, it ensures quantitative control of raw materials and supports recycling, reducing waste. Conveyor belts and motors enable automated conveying, improving production efficiency, while the control box and stable structural design enhance the equipment's reliability and ease of operation. This device is suitable for paste filling needs, offering advantages such as high precision, energy saving, environmental friendliness, and batch production, making it highly practical.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] Figure 1 is a three-dimensional schematic diagram of this utility model;
[0019] Figure 2 is a rear view of this utility model;
[0020] Figure 3 is an enlarged schematic diagram of structure A in Figure 1 of this utility model;
[0021] Figure 4 is an enlarged schematic diagram of structure B in Figure 2 of this utility model.
[0022] Figure label:
[0023] 1. Housing; 2. Control box; 3. Motor; 4. Mounting base; 5. Conveyor belt; 6. Piston cylinder; 7. Collection tank; 8. Bracket; 9. Transmission pipe three; 10. Check valve; 11. Transmission pipe two; 12. Transmission pipe one; 13. Nozzle; 14. Proportional valve; 15. Water pump. Detailed Implementation
[0024] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0028] Example 1
[0029] Please refer to Figures 1-4. This embodiment is a pressure-adjustable quantitative paste filling mechanism, including a box 1, a collection tank 7, a nozzle 13 and a proportional valve 14. The upper end of the box 1 is provided with piston cylinders 6 arranged in a linear array, the upper end of the piston cylinders 6 is provided with the collection tank 7, the upper end of the box 1 is provided with a fixing frame, the upper end of the fixing frame is provided with nozzles 13 arranged in a linear array, and the upper end of the nozzles 13 is provided with a proportional valve 14.
[0030] When in use, this device can fill the collection tank 7 with the raw material to be filled, and then use the built-in pump to transfer the raw material through the transmission pipe 9 to the piston cylinder 6. The piston cylinder 6 then drives the raw material to flow upward. After being metered through the proportional valve 14 from the transmission pipe 11, it is sprayed from the nozzle 13 into the can at the top of the conveyor belt 5. After being metered by the proportional valve 14, the excess raw material will be driven by the water pump 15 and flow from the transmission pipe 12 through the one-way valve 10 into the piston cylinder 6 for the next cycle. This device has the design concept of convenient metering and realizing the return of excess raw material. Multiple parallel filling elements can be used for batch filling, which has high practicality.
[0031] Example 2
[0032] Please refer to Figures 1-4. Based on Example 1, this embodiment further includes: a transmission pipe 9 is provided between the collection tank 7 and the piston cylinder 6. The collection tank 7 has a built-in pump body for transmitting raw materials. The pump body and the transmission pipe 9 realize the automatic delivery of raw materials, reduce manual intervention, and improve the continuity and stability of the filling process.
[0033] The upper end of the housing 1 is provided with a mounting base 4, the upper end of the mounting base 4 is provided with a conveyor belt 5, and a motor 3 is provided on one side of the outer wall of the mounting base 4. The output shaft of the motor 3 is fixedly connected to the rotation center of one side of the conveyor belt 5. The conveyor belt 5 works with the motor 3 to realize automated conveying, ensuring that containers such as cans are accurately positioned to the filling position, and improving the overall coordination of the production line and the filling accuracy.
[0034] A water pump 15 is fixed on one side of the proportional valve 14. A transmission pipe 12 is provided between the water pump 15 and the piston cylinder 6. The water pump 15 and the proportional valve 14 work together to optimize fluid control, ensure that excess raw materials can be stably returned to the piston cylinder 6, reduce raw material loss and improve recycling rate.
[0035] A one-way valve 10 is fixed at the upper end of the piston cylinder 6. The one-way valve 10 is connected to the transmission pipe 12. The one-way valve 10 prevents the raw material from flowing back, maintains the internal pressure of the piston cylinder 6, ensures the smooth filling process, and improves the reliability of the system.
[0036] A control box 2 is provided on one side of the box 1, and a base is fixed at the lower end of the box 1. A bracket 8 is fixed between the box 1 and the collection tank 7. The control box 2 facilitates centralized control of the equipment operating parameters, and the base and bracket 8 enhance the overall structural stability and ensure the long-term stable operation of the equipment.
[0037] A transmission pipe 2 11 is provided between the upper end of the piston cylinder 6 and the proportional valve 14. The transmission pipe 2 11 serves as the main filling channel, ensuring that the raw material is accurately delivered from the piston cylinder 6 to the nozzle 13, thereby improving filling efficiency and consistency.
[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A pressure-adjustable dosing paste filling mechanism comprising a box (1), a collecting tank (7), a nozzle (13) and a proportional valve (14), characterized in that: The upper end of the housing (1) is provided with piston cylinders (6) arranged in a linear array. The upper end of the piston cylinders (6) is provided with a collection groove (7). The upper end of the housing (1) is provided with a fixing frame. The upper end of the fixing frame is provided with nozzles (13) arranged in a linear array. The upper end of the nozzles (13) is provided with a proportional valve (14).
2. The pressure-adjustable quantitative paste filling mechanism according to claim 1, characterized in that: A transmission pipe (9) is provided between the collection tank (7) and the piston cylinder (6), and a pump body for transmitting raw materials is built into the collection tank (7).
3. A pressure-adjustable paste dosing mechanism according to claim 1, characterized in that: The upper end of the housing (1) is provided with a mounting base (4), the upper end of the mounting base (4) is provided with a conveyor belt (5), and a motor (3) is provided on one side of the outer wall of the mounting base (4). The output shaft of the motor (3) is fixedly connected to the rotation center on one side of the conveyor belt (5).
4. The pressure-adjustable quantitative paste filling mechanism according to claim 1, characterized in that: A water pump (15) is fixed on one side of the proportional valve (14), and a transmission pipe (12) is provided between the water pump (15) and the piston cylinder (6).
5. The pressure-adjustable quantitative paste filling mechanism according to claim 4, characterized in that: The piston cylinder (6) is fixed with a one-way valve (10) at its upper end, and the one-way valve (10) is connected to the transmission pipe (12).
6. The pressure-adjustable quantitative paste filling mechanism according to claim 1, characterized in that: A control box (2) is provided on one side of the box (1), a base is fixed at the lower end of the box (1), and a bracket (8) is fixed between the box (1) and the collection tank (7).
7. The pressure-adjustable quantitative paste filling mechanism according to claim 1, characterized in that: A transmission pipe 2 (11) is provided between the upper end of the piston cylinder (6) and the proportional valve (14).
Citation Information
Patent Citations
Production equipment for paste filling
CN219077639U