Liquid filling device and filling system
By designing a liquid filling device, utilizing a piston quantitative suction and discharge assembly and high-pressure gas control, combined with motor drive and transmission components, the problems of overflow and waste during the liquid filling process are solved, achieving efficient and quantitative liquid filling operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 曹县鲁弘机械有限公司
- Filing Date
- 2025-07-22
- Publication Date
- 2026-04-21
AI Technical Summary
In the existing technology, it is difficult to achieve efficient, quantitative and accurate filling operations when liquid products are filled into packaging bottles, and there are problems of liquid spillage and waste.
A liquid filling device was designed, including a frame, a liquid hopper, a liquid suction and discharge assembly, and a bottle docking assembly. By utilizing a piston quantitative suction and discharge assembly and high-pressure gas control, combined with a motor drive and transmission assembly, quantitative delivery and precise filling of liquid can be achieved.
It enables efficient and quantitative filling of liquid products, reduces liquid spillage and waste, and improves filling efficiency and accuracy.
Smart Images

Figure CN224147706U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of liquid filling technology, and in particular to a liquid filling device and filling system. Background Technology
[0002] After liquid products (such as beverages, soy sauce, pesticides, etc.) are produced, they need to be repackaged into bottles.
[0003] In order to fill liquids into packaging bottles, this application provides a liquid filling apparatus and filling system. Utility Model Content
[0004] This application provides a liquid filling apparatus and filling system for filling produced liquids into packaging bottles.
[0005] In a first aspect, embodiments of this application provide a liquid filling apparatus, comprising:
[0006] The frame is set on the ground;
[0007] Liquid silos are located above the frame.
[0008] A liquid suction and discharge assembly is mounted on the frame and is selectively connected to the liquid silo via a pipeline;
[0009] A bottle docking assembly is disposed on the frame. The bottle docking assembly is used to dock with the bottle and is selectively connected to the liquid suction and discharge assembly through a pipeline.
[0010] The liquid hopper stores liquid to be filled, and the liquid suction and discharge assembly is used to transfer a certain amount of liquid to be filled into the bottle via the bottle docking assembly.
[0011] In one feasible implementation, the liquid suction and discharge assembly includes a piston metering suction and discharge assembly, a piston drive assembly, and a three-way angle seat valve;
[0012] The piston metering suction and discharge assembly is mounted on the frame and is selectively connected to the liquid hopper and the bottle docking assembly via the three-way angle seat valve. The piston drive assembly is mounted on the frame and is connected to the piston metering suction and discharge assembly. The piston drive assembly is used to allow the liquid in the liquid hopper to enter into or exit the piston metering suction and discharge assembly.
[0013] In one feasible implementation, the piston metering suction and discharge assembly includes a metering cylinder and a piston section. The metering cylinder is vertically mounted on the frame, and the piston section is fitted inside the metering cylinder. The metering cylinder is connected to the liquid hopper and the bottle docking assembly, respectively, and the piston section is connected to the piston drive assembly.
[0014] In one feasible implementation, the piston drive assembly includes a first drive motor, a lifting transmission assembly, and a lead screw lifting assembly;
[0015] The first drive motor is mounted on the frame;
[0016] The lead screw lifting assembly is vertically mounted on the frame and connected to the piston section;
[0017] One end of the lifting transmission assembly is connected to the first drive motor, and the other end is connected to the lead screw lifting assembly. The first drive motor drives the lead screw lifting assembly to move through the lifting transmission assembly, thereby driving the piston part to rise and fall.
[0018] In one feasible implementation, the bottle docking assembly includes a filling head assembly and a fixing assembly. The fixing assembly is disposed on the frame, the filling head assembly is fixedly disposed on the fixing assembly, and the filling head assembly is connected to the liquid suction and discharge assembly.
[0019] In one feasible implementation, the filling head assembly includes a filling tube and a pneumatic angle seat valve. The filling tube is connected to the liquid suction and discharge assembly through the pneumatic angle seat valve and pipelines. The filling tube is mounted on a fixed assembly.
[0020] In one feasible implementation, the fixing component includes a fixing frame, a mounting base, a guide component, and a lifting drive component;
[0021] The fixed frame is fixedly mounted on the frame body, the guide assembly is vertically mounted on the fixed frame, the mounting base is fitted onto the guide assembly, the filling head assembly is fixedly mounted on the mounting base, and the lifting drive assembly is mounted on the frame body and connected to the mounting base. The lifting drive assembly is used to drive the mounting base to move up and down along the guide assembly.
[0022] In one feasible implementation, the lifting drive assembly includes a drive rod, a chain drive assembly, and a second drive motor;
[0023] The drive rod is vertically installed inside the frame, with its lower end connected to the chain drive assembly and its upper end connected to the mounting base. The second drive motor is fixedly installed on the frame and drives the drive rod to rise and fall through the chain drive assembly, thereby driving the mounting base to rise and fall.
[0024] Secondly, embodiments of this application provide a filling system, including a bottle conveying device and a liquid filling device as described in any of the first aspects, wherein the bottle conveying device is used to convey a bottle to a position below the liquid filling device, and the liquid filling device fills the bottle with liquid.
[0025] In a first aspect, embodiments of this application provide a liquid filling device, including a frame, a liquid silo, a liquid suction and discharge assembly, and a bottle docking assembly. The frame is mounted on the ground, providing a foundation for the installation and support of each component. The liquid silo is fixedly mounted above the frame and is used to hold the liquid to be filled. The liquid suction and discharge assembly is mounted on the frame and selectively connected to the liquid silo via a pipe. Since the liquid silo is also located above the frame, gravity facilitates the entry of liquid into the liquid suction and discharge assembly. The bottle docking assembly is mounted on the frame and is used to dock with a bottle, and is selectively connected to the liquid suction and discharge assembly via a pipe; the liquid suction and discharge assembly is used to transfer a measured amount of liquid to be filled into the bottle via the bottle docking assembly.
[0026] When filling the bottle, the liquid suction and discharge assembly first connects to the liquid hopper, and a fixed amount of liquid to be filled enters the liquid suction and discharge assembly from the liquid hopper. Then, the bottle docking assembly connects to the liquid suction and discharge assembly, and the passage between the liquid suction and discharge assembly and the liquid hopper is closed. The liquid suction and discharge assembly then fills the liquid to be filled inside the bottle through the pipeline and the bottle docking assembly.
[0027] Secondly, embodiments of this application provide a filling system, including a bottle conveying device and a liquid filling device as described in any of the first aspects. The bottle conveying device is used to convey the bottle to a position below the liquid filling device, and the liquid filling device fills the bottle with liquid. Furthermore, since this filling system includes the liquid filling device described in any of the above-mentioned technical solutions, it possesses all the beneficial effects of the liquid filling device of any of the above-mentioned technical solutions, which will not be elaborated further here. Attached Figure Description
[0028] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present application, but do not constitute an undue limitation of the present invention.
[0029] In the attached diagram:
[0030] Figure 1 This is a schematic diagram of the first structure of a liquid filling device according to an embodiment of this application;
[0031] Figure 2 yes Figure 1Schematic diagram of the second structure of the liquid filling device in the diagram;
[0032] Figure 3 yes Figure 1 A schematic diagram of the liquid filling device after removing the frame;
[0033] Figure 4 This is a first structural schematic diagram of a bottle docking assembly provided in an embodiment of this application;
[0034] Figure 5 yes Figure 4 The second structural schematic diagram of the bottle docking assembly.
[0035] Explanation of reference numerals in the attached figures:
[0036] 100 - Frame; 200 - Liquid silo; 300 - Liquid suction and discharge assembly; 400 - Bottle docking assembly;
[0037] 310 - Piston metering suction and discharge assembly; 320 - Piston drive assembly; 330 - Three-way angle seat valve; 410 - Filling head assembly; 420 - Fixing assembly;
[0038] 311-Quantitative cylinder; 312-Piston section; 321-First drive motor; 322-Lifting transmission assembly; 323-Screw lifting assembly; 411-Filling tube; 412-Pneumatic angle seat valve; 421-Fixed bracket; 422-Mounting base; 423-Guide assembly; 424-Lifting drive assembly;
[0039] 4241 - Drive rod; 4242 - Chain drive assembly; 4243 - Second drive motor. Detailed Implementation
[0040] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.
[0041] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0043] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0044] After liquid products (such as beverages, soy sauce, pesticides, etc.) are produced, they need to be repackaged into bottles.
[0045] In order to fill liquids into packaging bottles, this application provides a liquid filling device and filling system. The following will describe in detail the solutions provided by the embodiments of this application with reference to the accompanying drawings.
[0046] Figure 1 This is a schematic diagram of the first structure of a liquid filling device according to an embodiment of this application; Figure 2 yes Figure 1 Schematic diagram of the second structure of the liquid filling device in the diagram; Figure 3 yes Figure 1 A schematic diagram of the liquid filling device after removing the frame 100.
[0047] Reference Figures 1 to 3As shown in the illustration, this application provides a liquid filling device, including a frame 100, a liquid hopper 200, a liquid suction and discharge assembly 300, and a bottle docking assembly 400. The frame 100 is mounted on the ground, providing a foundation for the installation and support of each component. The liquid hopper 200 is fixedly mounted above the frame 100 and is used to hold the liquid to be filled. The liquid suction and discharge assembly 300 is mounted on the frame 100 and selectively connected to the liquid hopper 200 via a pipeline. Since the liquid hopper 200 is also located above the frame 100, gravity facilitates the entry of liquid into the liquid suction and discharge assembly 300. The bottle docking assembly 400 is mounted on the frame 100 and is used to dock with a bottle, and is selectively connected to the liquid suction and discharge assembly 300 via a pipeline; the liquid suction and discharge assembly 300 is used to transfer a measured amount of liquid to be filled into the bottle via the bottle docking assembly 400.
[0048] During the filling process, the liquid suction and discharge assembly 300 is first connected to the liquid hopper 200. A fixed amount of liquid to be filled enters the liquid suction and discharge assembly 300 from the liquid hopper 200. Then, the bottle docking assembly 400 is connected to the liquid suction and discharge assembly 300, and the passage between the liquid suction and discharge assembly 300 and the liquid hopper 200 is closed. The liquid suction and discharge assembly 300 fills the liquid to be filled inside the bottle through the pipeline and the bottle docking assembly 400.
[0049] For example, the liquid silo 200 is a box structure used to store liquid to be filled, which is the prior art.
[0050] Reference Figure 3As shown, specifically, the liquid suction and discharge assembly 300 includes a piston metering suction and discharge assembly 310, a piston drive assembly 320, and a three-way angle seat valve 330. The piston metering suction and discharge assembly 310 is fixedly mounted on the frame 100, and its upper end is selectively connected to the liquid hopper 200 and the bottle docking assembly 400 via the three-way angle seat valve 330. For example, one port of the three-way angle seat valve 330 is connected to the piston metering suction and discharge assembly, while the other two ports are connected to the liquid hopper 200 and the bottle docking assembly 400 respectively via pipelines. Furthermore, the three-way angle seat valve 330 is also connected to a high-pressure gas device to control the on / off state of each pipeline via high-pressure gas. It should be noted that using high-pressure gas to control the on / off state of the three-way angle valve pipeline is prior art and will not be elaborated upon here. A piston drive assembly 320 is mounted on the frame 100 and connected to a piston metering suction and discharge assembly 310. The piston drive assembly 320 is used to allow liquid in the liquid hopper 200 to enter or exit the piston metering suction and discharge assembly 310. For example, the piston metering suction and discharge assembly 310 is positioned on the frame 100, with the piston drive assembly 320 positioned below it, and drives the piston metering suction and discharge assembly 310 to perform the suction and discharge action of the liquid.
[0051] For example, the piston metering assembly 310 includes a metering cylinder 311 and a piston part 312. The metering cylinder 311 is vertically fixed on the frame 100, and the piston part 312 is fitted inside the metering cylinder 311. The upper end of the metering cylinder 311 is connected to the liquid hopper 200 and the bottle docking assembly 400 respectively through a three-way angle seat valve 330. The piston part 312 is connected to the piston drive assembly 320. When the piston drive assembly 320 drives the piston part 312 to move downward, it controls the three-way angle seat valve 330 to connect the metering cylinder 311 to the liquid hopper 200 and close the passage between the metering cylinder 311 and the bottle docking assembly 400, so that the liquid to be filled in the liquid hopper 200 is drawn into the metering cylinder 311. Next, the three-way angle seat valve 330 is controlled to close the passage between the metering cylinder 311 and the liquid hopper 200, and to connect the metering cylinder 311 and the bottle docking assembly 400. The piston drive assembly 320 drives the piston part 312 to move upward, thereby discharging the liquid in the metering cylinder 311 into the bottle through the bottle docking assembly 400.
[0052] Continue to refer to Figure 2As shown, the piston drive assembly 320 includes a first drive motor 321, a lifting transmission assembly 322, and a lead screw lifting assembly 323. The first drive motor 321 is mounted on the frame 100; the lead screw lifting assembly 323 is vertically mounted on the frame 100 and connected to the piston part 312; one end of the lifting transmission assembly 322 is connected to the output end of the first drive motor 321, and the other end is connected to the lead screw lifting assembly 323. The first drive motor 321 drives the lead screw lifting assembly 323 to move through the lifting transmission assembly 322, thereby driving the piston part 312 to rise and fall. For example, the lifting transmission assembly 322 can be a chain drive assembly 4242. The first drive motor 321 can be a servo motor or a DC drive motor with a reducer; no specific limitation is made here.
[0053] like Figures 1 to 3 As shown, in some examples, multiple piston metering suction and discharge assemblies 310 and three-way angle seat valves 330 are provided, with each three-way angle seat valve 330 mounted on a corresponding piston metering suction and discharge assembly 310. All piston metering suction and discharge assemblies 310 are arranged vertically and at intervals on the frame 100, and each piston metering suction and discharge assembly 310 is connected to the liquid hopper 200 and the corresponding bottle docking assembly 400 through the corresponding three-way angle seat valve 330. The piston parts 312 of all piston metering suction and discharge assemblies 310 are fixedly connected together by a connecting plate, and the screw lifting assembly 323 is connected to the connecting plate. The first drive motor 321 drives the connecting plate to rise and fall through the lifting transmission assembly 322 and the screw lifting assembly 323. The connecting plate drives all piston parts 312 to rise and fall simultaneously, so as to fill multiple bottles with liquid at the same time.
[0054] Figure 4 This is a first structural schematic diagram of a bottle docking assembly 400 provided in an embodiment of this application; Figure 5 yes Figure 4 The second structural schematic diagram of the bottle docking assembly 400 in the middle.
[0055] Reference Figure 4 and Figure 5 As shown, in some examples, the bottle docking assembly 400 includes a filling head assembly 410 and a fixing assembly 420. The fixing assembly 420 is disposed on the frame 100, and the filling head assembly 410 is fixedly disposed on the fixing assembly 420, and the filling head assembly 410 is in communication with the liquid suction and discharge assembly 300. Exemplarily, the fixing assembly 420 may be a frame structure formed by connecting profiles. The filling head assembly 410 includes a filling tube 411 and a pneumatic angle seat valve 412.
[0056] For example, the filling tube 411 can be a straight tube with a diameter smaller than the bottle opening size. The filling tube 411 is vertically and fixedly mounted on the fixing assembly 420. A pneumatic angle seat valve 412 is located at the upper end of the filling tube 411. The pneumatic angle seat valve 412 is connected to the liquid suction and discharge assembly 300 through a pipeline. The pneumatic angle seat valve 412 can be used to open and close the filling tube 411 to prevent liquid in the pipeline from flowing into the bottle and causing the liquid in the bottle to overflow due to excessive amount.
[0057] Continue to refer to Figure 4 and Figure 5 As shown, in some examples, the bottle docking assembly 400 is height-adjustable to allow it to extend into the packaging bottle for liquid filling, preventing liquid from flowing onto the bottle body. Exemplarily, in these examples, the fixing assembly 420 includes a fixing frame 421, a mounting base 422, a guide assembly 423, and a lifting drive assembly 424. The fixing frame 421 is fixedly mounted on the frame 100, the guide assembly 423 is vertically disposed on the fixing frame 421, the mounting base 422 is fitted onto the guide assembly 423, the filling head assembly 410 is fixedly disposed on the mounting base 422, and the lifting drive assembly 424 is disposed on the frame 100 and connected to the mounting base 422. The lifting drive assembly 424 drives the mounting base 422 to move up and down along the guide assembly 423.
[0058] For example, the lifting drive assembly 424 can be a linear drive assembly such as a cylinder or hydraulic cylinder, or it can be a motor drive assembly. Specifically, such as Figure 4 and Figure 5 As shown, in some examples, the lifting drive assembly 424 includes a drive rod 4241, a chain drive assembly 4242, and a second drive motor 4243. The drive rod 4241 is vertically disposed within the frame 100, with its lower end connected to the drive chain of the chain drive assembly 4242 and its upper end connected to the mounting base 422. The second drive motor 4243 is fixedly disposed on the frame 100. The second drive motor 4243 drives the drive rod 4241 to rise and fall through the chain drive assembly 4242, thereby driving the mounting base 422 to rise and fall, thus controlling the rise and fall of the filling head assembly 410, enabling it to extend into or be removed from the packaging bottle.
[0059] Secondly, embodiments of this application provide a filling system, including a bottle conveying device and a liquid filling device as described in any of the first aspects. The bottle conveying device is used to convey the bottle to a position below the liquid filling device, and the liquid filling device fills the bottle with liquid.
[0060] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.
Claims
1. A liquid filling device, characterized by, include: The frame (100) is set on the ground; A liquid silo (200) is located above the frame (100); A liquid suction and discharge assembly (300) is disposed on the frame (100) and is selectively connected to the liquid silo (200) through a pipeline; A bottle docking assembly (400) is disposed on the frame (100). The bottle docking assembly (400) is used to dock with the bottle and is selectively connected to the liquid suction and discharge assembly (300) through a pipeline. The liquid hopper (200) stores liquid to be filled, and the liquid suction and discharge assembly (300) is used to transfer a certain amount of liquid to be filled into the bottle via the bottle docking assembly (400).
2. The liquid filling apparatus according to claim 1, characterized by The liquid suction and discharge assembly (300) includes a piston metering suction and discharge assembly (310), a piston drive assembly (320), and a three-way angle seat valve (330); The piston metering suction and discharge assembly (310) is mounted on the frame (100) and is selectively connected to the liquid hopper (200) and the bottle docking assembly (400) respectively through the three-way angle seat valve (330). The piston drive assembly (320) is mounted on the frame (100) and is connected to the piston metering suction and discharge assembly (310). The piston drive assembly (320) is used to allow the liquid in the liquid hopper (200) to enter into or exit the piston metering suction and discharge assembly (310).
3. The liquid filling apparatus according to claim 2, characterized in that, The piston metering suction and discharge assembly (310) includes a metering cylinder (311) and a piston part (312). The metering cylinder (311) is vertically mounted on the frame (100), and the piston part (312) is fitted inside the metering cylinder (311). The metering cylinder (311) is connected to the liquid hopper (200) and the bottle docking assembly (400) respectively, and the piston part (312) is connected to the piston drive assembly (320).
4. The liquid filling apparatus according to claim 3, characterized in that, The piston drive assembly (320) includes a first drive motor (321), a lifting transmission assembly (322), and a lead screw lifting assembly (323); The first drive motor (321) is mounted on the frame (100); The lead screw lifting assembly (323) is vertically mounted on the frame (100) and connected to the piston part (312); One end of the lifting transmission assembly (322) is connected to the first drive motor (321), and the other end is connected to the lead screw lifting assembly (323). The first drive motor (321) drives the lead screw lifting assembly (323) to move through the lifting transmission assembly (322), thereby driving the piston part (312) to rise and fall.
5. The liquid filling apparatus according to claim 1, wherein The bottle docking assembly (400) includes a filling head assembly (410) and a fixing assembly (420). The fixing assembly (420) is disposed on the frame (100), and the filling head assembly (410) is fixedly disposed on the fixing assembly (420). The filling head assembly (410) is connected to the liquid suction and discharge assembly (300).
6. The liquid filling apparatus according to claim 5, wherein The filling head assembly (410) includes a filling tube (411) and a pneumatic angle seat valve (412). The filling tube (411) is connected to the liquid suction and discharge assembly (300) through the pneumatic angle seat valve (412) and pipelines. The filling tube (411) is mounted on the fixing assembly (420).
7. The liquid filling apparatus according to claim 5, wherein The fixing component (420) includes a fixing frame (421), a mounting base (422), a guide component (423), and a lifting drive component (424); The fixing frame (421) is fixedly mounted on the frame (100), the guide assembly (423) is vertically mounted on the fixing frame (421), the mounting base (422) is fitted onto the guide assembly (423), the filling head assembly (410) is fixedly mounted on the mounting base (422), and the lifting drive assembly (424) is mounted on the frame (100) and connected to the mounting base (422). The lifting drive assembly (424) is used to drive the mounting base (422) to move up and down along the guide assembly (423).
8. The liquid filling apparatus according to claim 7, characterized in that, The lifting drive assembly (424) includes a drive rod (4241), a chain drive assembly (4242), and a second drive motor (4243); The drive rod (4241) is vertically installed inside the frame (100), with its lower end connected to the chain drive assembly (4242) and its upper end connected to the mounting base (422). The second drive motor (4243) is fixedly installed on the frame (100). The second drive motor (4243) drives the drive rod (4241) to rise and fall through the chain drive assembly (4242), thereby driving the mounting base (422) to rise and fall.
9. A filling system characterized in that, The device includes a bottle conveying device and a liquid filling device as described in any one of claims 1-8, wherein the bottle conveying device is used to convey a bottle to a position below the liquid filling device, and the liquid filling device fills the bottle with liquid.