Filling equipment with accurate quantification

Abstract

The utility model discloses filling equipment with accurate quantification, which relates to the technical field of liquid filling machinery and comprises an operating platform, a support frame is fixedly connected to the upper side of the operating platform, a positioning sleeve is fixedly connected to the upper side of the support frame, a first filling device and a second filling device are respectively clamped on the inner side of the positioning sleeve, and a screw rod is fixedly connected to the tail end of a push rod. The exhaust mechanism is installed outside the screw rod, the liquid pumping and filling mechanism is installed at the tail end of the first filling device and the tail end of the second filling device, a clamping groove is formed in the inner side of the installation base, a driving motor is fixedly connected to the outer portion of the installation base, the output end of the driving motor is fixedly connected with a lead screw, and the linkage mechanism is installed between the installation base and the connecting plate. According to the equipment, pumping and filling integrated operation is achieved through switching of the one-way valves, the disassembling and assembling step is omitted, meanwhile, the rotating sleeve is used for driving the sealing piece to compress bubbles to ensure precision, in addition, through linkage pushing of a modular splicing structure and a motor, multiple sets of filling devices are made to conduct synchronous quantitative filling, and efficiency and precision are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of liquid filling machinery technology, specifically to a precise quantitative filling device. Background Technology

[0002] The cosmetics industry, especially mid-to-high-end skincare and serum products, demands extremely high filling precision; even minute dosage deviations can affect product efficacy and consumer experience. With the diversification of product forms and the popularity of small-volume packaging, greater challenges are placed on the quantitative accuracy, ease of operation, and multi-specification adaptability of filling equipment. Currently, automated filling equipment has become mainstream, its core being how to stably and efficiently achieve precise metering and transfer of trace amounts of liquid, while adapting to the production needs of multiple product categories and batches.

[0003] Existing technologies include several devices for quantitative liquid filling. These devices typically consist of separate pumping and filling components, or require manual operation to switch between pumping and filling states or connect different pipelines. To achieve quantitative control, they may employ manually driven piston or plunger structures, or rely on an external power source to move the piston within a cylinder. Valves are often installed in the pipelines to control the liquid flow direction. When additional filling stations are required, additional independent drive units or complex transmission structures are usually necessary.

[0004] However, the aforementioned existing technologies have some shortcomings in practical applications. First, the conversion between liquid extraction and filling often involves the disassembly and installation of multiple pipelines, which is cumbersome, inconvenient, and inefficient, affecting the overall filling speed. Second, when air bubbles are formed inside the filling unit due to operation or liquid characteristics, there is a lack of simple and effective online removal methods. The presence of bubbles directly affects the effective stroke of the piston or plunger, leading to deviations in filling volume and making it difficult to guarantee continuous quantitative accuracy. Furthermore, the equipment structure is usually designed for a fixed number of filling stations, resulting in poor scalability. Adding filling units not only requires adding corresponding components but also configuring additional drives or complex linkage mechanisms, significantly increasing costs. Moreover, it is difficult to ensure that the actions of all newly added units are completely synchronized and that the thrust is uniform, making it difficult to guarantee the consistency of product dosage within a batch during multi-station filling.

[0005] Based on this, the present invention designs a precise quantitative filling device to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a filling device with precise quantitative filling.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A precise quantitative filling device includes an operating table, an exhaust mechanism, a liquid extraction and filling mechanism, and a linkage mechanism. A support frame is fixedly connected to the upper side of the operating table. Multiple sets of horizontally arranged positioning sleeves are fixedly connected to the upper side of the support frame. The inner sides of the positioning sleeves respectively hold a first filling device and a second filling device. A sealing element is slidably connected to the inner side of both the first and second filling devices. A push rod is fixedly connected to the outside of the sealing element, and a screw is fixedly connected to the end of the push rod. The exhaust mechanism is installed outside the screw. The liquid extraction and filling mechanism is installed at the ends of the first and second filling devices. A mounting base is fixedly connected between the two sets of first filling devices. A slot is formed on the inner side of the mounting base. A drive motor is fixedly connected to the outside of the mounting base. A lead screw is fixedly connected to the output end of the drive motor, and the lead screw is rotatably connected to the inner side of the slot. The linkage mechanism is installed between the mounting base and a connecting plate.

[0009] Furthermore, the positioning sleeve is made of elastic rubber material, and the second filling device is located on both sides of the first filling device.

[0010] Furthermore, the exhaust mechanism includes a connecting plate and a rotating sleeve. The connecting plate is slidably connected to the outside of the screw, and the rotating sleeve is rotatably connected to the outside of the connecting plate. The rotating sleeve and the screw are connected by a thread. A positioning bolt is threaded onto the outside of the rotating sleeve, and the end of the positioning bolt abuts against the connecting plate. Mounting plates are fixedly connected to the openings of the first filling device and the second filling device. A limit groove is formed on the inner side of the mounting plate. A limit plate is fixedly connected to the outside of the push rod, and the limit plate is slidably connected within the limit groove.

[0011] Furthermore, the liquid filling mechanism includes an output pipe, an input pipe, and a one-way valve. The output pipe is fixedly connected to the end of the second filling device, the input pipe is fixedly connected to the outside of the output pipe, and the one-way valve is fixedly installed on the outside of the input pipe and the output pipe.

[0012] Furthermore, rubber filling nozzles are fixedly installed at the ends of both the output pipe and the input pipe.

[0013] Furthermore, the linkage mechanism includes a slider and a fixing plate. The slider is slidably connected to the inner side of the slot and threadedly connected to the outside of the lead screw. The fixing plate is fixedly connected between the connecting plate and the slider and slidably connected to the outside of the slot.

[0014] Furthermore, an assembly mechanism is installed between the two sets of connecting plates located on both sides.

[0015] Furthermore, the assembly mechanism includes a connecting rod and a pin. A positioning groove is provided on the outside of one set of connecting plates. The connecting rod is fixedly connected to one side of another set of connecting plates. The pin is slidably connected to the upper side of one set of connecting plates. A through hole is provided on the outside of the connecting rod. The pin matches the through hole.

[0016] Compared with the prior art, the advantages of this utility model are as follows: 1. This quantitatively accurate filling equipment achieves seamless switching between liquid extraction and filling states through a combination of one-way valves and a linkage operation mode. Operators only need to simply rotate the rotating sleeve to complete the entire work cycle, which significantly simplifies the operation process. It not only eliminates the trouble of frequently switching pipelines or disassembling parts in traditional equipment, but also greatly improves work efficiency. It is particularly suitable for the production needs of small batches and multiple varieties of cosmetics. The ease of operation is significantly improved, and the risk of filling volume deviation due to operational errors is reduced.

[0017] 2. This precise quantitative filling equipment can compress the air bubbles by simply closing all valves and rotating the rotating sleeve when air bubbles are detected in the filling unit, thus ensuring the accuracy of subsequent filling. This solves the problem of traditional equipment requiring shutdown and disassembly when encountering air bubbles, enabling rapid online adjustment and ensuring the stability of continuous production. It also reduces equipment complexity and maintenance costs while maintaining accuracy.

[0018] 3. This precise quantitative filling equipment can quickly increase the number of filling units through simple plug-in fixing, while the unique linkage drive structure ensures that all units move synchronously and accurately. It retains the flexibility of single-machine operation and can meet the needs of mass production. The motor-driven screw transmission provides stable and uniform thrust output, ensuring the consistency of dosage of each unit when filling multiple stations. This allows the equipment to adapt to small-scale trial production in the R&D stage and meet the precision requirements of large-scale production. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0020] Figure 1 This is a perspective view of a precise quantitative filling device according to the present invention.

[0021] Figure 2 This is a partial structural front sectional view of the present invention;

[0022] Figure 3This is a second perspective view of a precise quantitative filling device according to the present invention;

[0023] Figure 4 This is a third perspective view of a precise quantitative filling device according to the present invention;

[0024] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0025] Figure 6 for Figure 1 Enlarged view of point B in the middle;

[0026] Figure 7 for Figure 3 Enlarged view of point C in the middle;

[0027] Figure 8 for Figure 3 Enlarged view of point D in the middle.

[0028] The labels in the diagram represent:

[0029] 1. Operating table; 2. Support frame; 3. Positioning sleeve; 4. First filling device; 5. Second filling device; 6. Seal; 7. Push rod; 8. Screw; 9. Connecting plate; 10. Rotating sleeve; 11. Output pipe; 12. Input pipe; 13. One-way valve; 14. Mounting base; 15. Slot; 16. Slider; 17. Fixing plate; 18. Drive motor; 19. Lead screw; 20. Positioning groove; 21. Connecting rod; 22. Pin; 23. Positioning bolt; 24. Mounting plate; 25. Limiting plate. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-3 , Figure 5 , Figure 6 as well as Figure 8A precise quantitative filling device includes an operating table 1, which serves as the basic support platform for the entire device, providing a stable installation foundation for other components. It also includes an exhaust mechanism, a liquid extraction and filling mechanism, and a linkage mechanism. These three functional modules work together to achieve precise filling. A support frame 2 is fixedly connected to the upper side of the operating table 1, serving to support and fix the upper components. Multiple sets of horizontally arranged positioning sleeves 3 are fixedly connected to the upper side of the support frame 2. The positioning sleeves 3 are used to fix and position the filling device components. The positioning sleeves 3 are made of elastic rubber material, which can firmly fix the filling device while facilitating installation and disassembly. The inner side of the positioning sleeves 3 respectively holds a first filling device 4 and a second filling device 5. The first filling device 4 and the second filling device 5 constitute the main liquid storage and delivery unit. The second filling device 5 is located on both sides of the first filling device 4. This layout facilitates multi-station expansion.

[0032] Both the first filling device 4 and the second filling device 5 are slidably connected to a sealing element 6 on their inner sides. The sealing element 6 is used to form a sealed cavity inside the filling device. A push rod 7 is fixedly connected to the outside of the sealing element 6. The push rod 7 is a force transmission component. A screw 8 is fixedly connected to the end of the push rod 7. The screw 8 converts the rotational motion into linear motion. An exhaust mechanism is installed outside the screw 8 to remove air from the filling device. The exhaust mechanism includes a connecting plate 9 and a rotating sleeve 10. The connecting plate 9 is slidably connected to the outside of the screw 8, and the rotating sleeve 10 is rotatably connected to the outside of the connecting plate 9. The rotating sleeve 10 and the screw 8 are connected by a thread. This structural design facilitates manual operation for exhaust. When the rotating sleeve 10 is rotated, the screw 8 can be driven to slide and translate within the connecting plate 9 to exhaust air because the rotating sleeve 10 and the screw 8 are threadedly engaged. When the connecting plate 9 is pushed to fill, the screw 8 and the connecting plate 9 can be synchronously linked by the thread engagement between the rotating sleeve 10 and the screw 8.

[0033] The rotating sleeve 10 is externally threaded with a positioning bolt 23, and the end of the positioning bolt 23 abuts against the connecting plate 9. The positioning bolt 23 can prevent the rotating sleeve 10 and the screw 8 from rotating due to resistance and friction during the filling stage, thus achieving the positioning function. The first filling device 4 and the second filling device 5 are fixedly connected with mounting plates 24. The inner side of the mounting plate 24 is provided with a limit groove. The push rod 7 is externally fixedly connected with a limit plate 25, and the limit plate 25 is slidably connected in the limit groove. The mounting plate 24 and the limit plate 25 can also prevent the push rod 7 from rotating during use, thus ensuring the accuracy of filling.

[0034] The liquid extraction and filling mechanism is installed at the ends of the first filler 4 and the second filler 5, and is responsible for the intake and discharge of liquid. The liquid extraction and filling mechanism includes an output pipe 11, an input pipe 12 and a one-way valve 13. The output pipe 11 is fixedly connected to the end of the second filler 5 and is used to transport liquid to the packaging container. The input pipe 12 is fixedly connected to the outside of the output pipe 11 and is used to draw liquid from the raw material container. The one-way valve 13 is fixedly installed on the outside of the input pipe 12 and the output pipe 11 to control the liquid flow direction. Rubber filling nozzles are fixedly installed at the ends of the output pipe 11 and the input pipe 12. The rubber material ensures the sealing when in contact with the container. At the same time, the rubber filling nozzles can prevent cosmetic liquid from dripping. Pressure must be applied inside the rubber filling nozzles to make them output liquid cosmetics.

[0035] In this embodiment, during precise quantitative filling of cosmetics, the operator first inserts the end of the input tube 12 into the container storing the raw materials, and simultaneously places the rubber filling nozzle at the end of the output tube 11 above the container to be filled. The filling process is divided into two stages: liquid extraction and filling. During the liquid extraction stage, the one-way valve 13 outside the output tube 11 is closed, and the one-way valve 13 outside the input tube 12 is opened. At this time, by controlling the connecting plate 9, the push rod 7 and the sealing element 6 fixed at its end can slide outward inside the first filling device 4 or the second filling device 5. The outward movement of the sealing element 6 creates a negative pressure in the filling device cavity, thereby drawing the cosmetic raw materials into the filling device through the opened one-way valve 13 and the input tube 12. When quantitative filling is required... When the one-way valve 13 of the input pipe 12 is closed and the one-way valve 13 of the output pipe 11 is opened, the connecting plate 9 is pulled in the opposite direction, causing the push rod 7 to push the sealing element 6 to slide inward, and the quantitative amount of cosmetic raw materials is accurately pressed into the container to be filled through the output pipe 11. This design simplifies the operation process and eliminates the need for frequent installation and disassembly of parts. If air bubbles are generated inside the filling machine and affect the accuracy, both sets of one-way valves 13 can be closed at the same time. Then, the positioning bolt 23 can be unscrewed and the rotating sleeve 10 can be rotated. The rotating sleeve 10 is threadedly connected to the screw 8. Its rotation will push the screw 8 to move inward, thereby driving the push rod 7 and the sealing element 6 to compress the cavity space inward, compressing the air bubbles to a negligible volume, thereby ensuring the quantitative accuracy of subsequent filling.

[0036] Example 2: In some embodiments, please refer to the accompanying drawings. Figures 1-8 Based on Embodiment 1, a mounting base 14 is fixedly connected between the two sets of first filling devices 4. The mounting base 14 serves as the mounting foundation for the linkage mechanism. A slot 15 is provided on the inner side of the mounting base 14, which provides guidance for the slider 16. A drive motor 18 is fixedly connected to the outside of the mounting base 14, which provides a power source. A lead screw 19 is fixedly connected to the output end of the drive motor 18, and the lead screw 19 is rotatably connected to the inner side of the slot 15. The lead screw 19 converts the rotational motion of the motor into linear motion.

[0037] The linkage mechanism is installed between the mounting base 14 and the connecting plate 9 to realize multi-station synchronous operation. The linkage mechanism includes a slider 16 and a fixed plate 17. The slider 16 is limited and slidably connected to the inner side of the slot 15, and the slider 16 is threadedly connected to the outside of the lead screw 19. The slider 16 converts the rotational motion of the lead screw 19 into linear motion. The fixed plate 17 is fixedly connected between the connecting plate 9 and the slider 16, and the fixed plate 17 is slidably connected to the outside of the slot 15. The fixed plate 17 transmits motion and maintains stability.

[0038] An assembly mechanism is installed between the two sets of connecting plates 9 on both sides to enable rapid expansion of multiple workstations. The assembly mechanism includes a connecting rod 21 and a pin 22. One set of connecting plates 9 has a positioning groove 20 on its outside for precise positioning. The connecting rod 21 is fixedly connected to one side of the other set of connecting plates 9 as a connecting component. The pin 22 is slidably connected to the upper side of one set of connecting plates 9. The connecting rod 21 has a through hole on its outside, and the pin 22 matches the through hole. This design enables quick locking and unlocking.

[0039] In this embodiment, when multiple cosmetic containers need to be filled simultaneously, the operator inserts an additional second filler 5 into the corresponding positioning sleeve 3 on the support frame 2. Then, the connecting rod 21 on one side of the adjacent connecting plate 9 is embedded into the positioning groove 20 on the outside of another connecting plate 9. Next, the sliding pin 22 is inserted into the pre-set through hole on the connecting rod 21, thereby firmly assembling multiple sets of connecting plates 9 together, achieving mechanical splicing of multiple fillers. After assembly, the drive motor 18 is started, driving the lead screw 19 at its output end to rotate. The lead screw 19 passes through the slot 15 inside the mounting base 14 and forms a threaded connection with the slider 16 that is limited and slides within the slot 15. Therefore, the rotation of the lead screw 19 drives the slider 16 along... The slot 15 moves laterally. Since the slider 16 is fixedly connected to all the connecting plates 9 after splicing through the fixing plate 17, the lateral movement of the slider 16 will synchronously drive all the connecting plates 9 to move together. The translation of the connecting plates 9 acts on all the screws 8 that are threaded to them, pushing all the screws 8 to move inward synchronously. The movement of the screws 8 is transmitted through the push rod 7, driving all the sealing parts 6 inside the filling device to slide inward synchronously. Thus, a certain amount of cosmetic raw materials in each filling device are simultaneously and equally filled into the corresponding containers through their respective open output tubes 11. This design controls the displacement of the lead screw 19 by controlling the precise speed of the drive motor 18, thereby precisely controlling the stroke and filling volume of all the sealing parts 6, which significantly improves the efficiency and overall accuracy of multi-station filling.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A precise quantitative filling device, comprising an operating table (1), characterized in that: It also includes an exhaust mechanism, a liquid filling mechanism, and a linkage mechanism. A support frame (2) is fixedly connected to the upper side of the operating table (1). Multiple sets of horizontally arranged positioning sleeves (3) are fixedly connected to the upper side of the support frame (2). The inner side of the positioning sleeves (3) respectively holds the first filling device (4) and the second filling device (5). The inner side of the first filling device (4) and the second filling device (5) are slidably connected to a sealing element (6). A push rod (7) is fixedly connected to the outside of the sealing element (6). A screw (8) is fixedly connected to the end of the push rod (7). The exhaust mechanism... Installed on the outside of the screw (8), the liquid filling mechanism is installed at the end of the first filling device (4) and the second filling device (5). A mounting base (14) is fixedly connected between the two sets of the first filling devices (4). A slot (15) is opened on the inner side of the mounting base (14). A drive motor (18) is fixedly connected to the outside of the mounting base (14). A lead screw (19) is fixedly connected to the output end of the drive motor (18), and the lead screw (19) is rotatably connected to the inner side of the slot (15). The linkage mechanism is installed between the mounting base (14) and the connecting plate (9).

2. The precise quantitative filling equipment according to claim 1, characterized in that, The positioning sleeve (3) is made of elastic rubber material, and the second filling device (5) is located on both sides of the first filling device (4).

3. The precise quantitative filling equipment according to claim 1, characterized in that, The exhaust mechanism includes a connecting plate (9) and a rotating sleeve (10). The connecting plate (9) is slidably connected to the outside of the screw (8). The rotating sleeve (10) is rotatably connected to the outside of the connecting plate (9). The rotating sleeve (10) and the screw (8) are connected by a thread. The rotating sleeve (10) is threaded with a positioning bolt (23). The end of the positioning bolt (23) abuts against the connecting plate (9). The first filling device (4) and the second filling device (5) are fixedly connected with mounting plates (24). The inner side of the mounting plate (24) is provided with a limiting groove. The outside of the push rod (7) is fixedly connected with a limiting plate (25). The limiting plate (25) is slidably connected to the limiting groove.

4. The precise quantitative filling equipment according to claim 1, characterized in that, The liquid filling mechanism includes an output pipe (11), an input pipe (12), and a one-way valve (13). The output pipe (11) is fixedly connected to the end of the second filling device (5), the input pipe (12) is fixedly connected to the outside of the output pipe (11), and the one-way valve (13) is fixedly installed on the outside of the input pipe (12) and the output pipe (11).

5. The precise quantitative filling equipment according to claim 4, characterized in that, Both the output pipe (11) and the input pipe (12) are fixedly equipped with rubber filling nozzles.

6. The quantitatively precise filling equipment according to claim 3, characterized in that, The linkage mechanism includes a slider (16) and a fixing plate (17). The slider (16) is slidably connected to the inside of the slot (15) and threadedly connected to the outside of the lead screw (19). The fixing plate (17) is fixedly connected between the connecting plate (9) and the slider (16) and slidably connected to the outside of the slot (15).

7. The quantitatively precise filling equipment according to claim 3, characterized in that, An assembly mechanism is installed between the two sets of connecting plates (9) located on both sides.

8. The precise quantitative filling equipment according to claim 7, characterized in that, The assembly mechanism includes a connecting rod (21) and a pin (22). A positioning groove (20) is provided on the outside of one set of connecting plates (9). The connecting rod (21) is fixedly connected to one side of another set of connecting plates (9). The pin (22) is slidably connected to the upper side of one set of connecting plates (9). A through hole is provided on the outside of the connecting rod (21). The pin (22) matches the through hole.

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