Vacuum liquid injection machine

Abstract

A vacuum liquid injection machine comprises a supporting frame, a feeding module, a quantitative injection pump, a first pipeline assembly, a vacuum tank, a second pipeline assembly, an evacuation assembly, a first butt joint assembly, a second butt joint assembly, a weighing device and a recovery device, and the first pipeline assembly and the second pipeline assembly are provided with a first control valve and a second control valve respectively. The first pipeline assembly is connected with the feeding module, the vacuum tank and the quantitative injection pump, the second pipeline assembly is connected with the vacuum tank and the evacuation assembly, the first butt joint assembly is connected to the bottom of the vacuum tank, and the second butt joint assembly is connected to the recovery device. According to the utility model, the vacuum tank and the product are evacuated by adopting the evacuating assembly, and liquid is quickly pressed into the product by utilizing air pressure after the evacuating is completed, so that the liquid injection efficiency is effectively improved, and the filling amount is effectively controlled and the product quality is improved by matching with the quantitative injection pump and the weighing equipment.

Description

Technical Field

[0001] The utility model relates to liquid injection equipment, in particular to a vacuum liquid injection machine. Background Art

[0002] Filling containers with complex internal spaces or tiny pipes is extremely difficult. Existing equipment connects the liquid to the container's water inlet through a pipe, opens the container's water outlet, and then uses pressure to force a fixed amount of liquid into the container. This results in slow filling efficiency and inaccurate filling volume control. Often, the required filling volume is not achieved, or the filled liquid easily leaks. Utility Model Content

[0003] Based on this, it is necessary to provide a vacuum liquid injection machine to address the deficiencies in the prior art.

[0004] A vacuum liquid injection machine includes a support frame, a feeding module, a quantitative injection pump, a first pipeline assembly, a vacuum tank, a second pipeline assembly, an evacuation assembly, a first docking assembly, a second docking assembly, a weighing device, and a recovery device. The first pipeline assembly and the second pipeline assembly are respectively provided with a first control valve and a second control valve. The first pipeline assembly connects the feeding module, the vacuum tank and the quantitative injection pump, the second pipe assembly connects the vacuum tank and the evacuation assembly, the first docking assembly is connected to the bottom of the vacuum tank, and the second docking assembly is connected to the recovery device.

[0005] In one embodiment, a workbench and a positioning frame are provided on the support frame, and an upper space is formed above the workbench. The positioning frame is arranged in the upper space, and the positioning frame divides the upper space into a front cavity and a rear cavity. In addition, an operating port connected to the front cavity is provided on the front side of the support frame, and a stepped surface is provided on the side of the positioning frame close to the rear cavity.

[0006] In one embodiment, the feeding module includes a liquid storage barrel, a water pump and a top liquid storage tank, and the liquid storage barrel, the water pump and the top liquid storage tank are connected in sequence through pipelines.

[0007] In one embodiment, a lower space is formed under the workbench, the liquid storage barrel is placed in the lower space of the support frame, the water pump is installed on the workbench at the bottom of the rear cavity, and the top liquid storage tank is installed on the top of the support frame and extends into the rear cavity.

[0008] In one embodiment, the weighing device is fixed on a workbench below the front cavity, and the quantitative injection pump and the vacuum tank are installed on the stepped surface of the positioning frame.

[0009] In one embodiment, a safety grating is further included, and the safety grating is installed on both sides of the operating port on the support frame.

[0010] In one embodiment, the evacuation assembly includes a vacuum pump and a filter group. The vacuum pump, the filter group and the vacuum tank are connected in sequence through pipes. The filter group is arranged in the rear cavity and installed on the support frame.

[0011] In one embodiment, the first docking assembly is provided with a docking head, the second docking assembly is provided with a docking head and a circulation pump, and the circulation pump is installed on a workbench at the bottom of the rear cavity.

[0012] In one embodiment, a third control valve and a pressurized air pump are further included, and the pressurized air pump, the third control valve and the vacuum pump are sequentially connected through pipelines.

[0013] The beneficial effects of the vacuum liquid filling machine of the present invention are as follows: the present invention uses a vacuuming component to evacuate the vacuum tank and the product, and after the vacuuming is completed, uses air pressure to quickly press the liquid into the product, thereby effectively improving the liquid filling efficiency; in conjunction with a quantitative injection pump and weighing equipment, the filling volume can be effectively controlled to improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 、 Figure 2 、 Figure 3 Schematic diagram of the structure of the vacuum liquid injection machine of the utility model at different angles;

[0015] Figure 4 for Figure 3 The structure diagram of the vacuum liquid injection machine shown is shown with the frame removed, wherein the first pipeline assembly, the second pipeline assembly, the third control valve, the pressurized air pump, the vacuum pump and the pipeline are not shown;

[0016] Figure 5 This is a schematic diagram of the connection of each module of the vacuum liquid injection machine of the present invention; DETAILED DESCRIPTION

[0017] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0019] Furthermore, 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0020] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0023] See also Figures 1 to 5 The utility model provides a vacuum liquid injection machine for injecting liquid into a product 200. The product 200 is provided with an inner channel, a liquid inlet connected to one side of the inner channel, and a liquid outlet connected to the other side of the inner channel. The vacuum liquid injection machine includes a support frame 10, a feeding module 20, a quantitative injection pump 30, a first pipeline assembly 60, a vacuum tank 40, a second pipeline assembly 70, an evacuation assembly 50, a first docking assembly 80, a second docking assembly 90, a weighing device 100, a recovery device 110 and a safety grating 120. The first pipeline assembly 60 and the second pipeline assembly 70 are respectively provided with a first control valve 61 and a second control valve 71. The first pipeline assembly 60 connects the feeding module 20, the vacuum tank 40 and the quantitative injection pump 30. The second pipe assembly connects the vacuum tank 40 and the evacuation assembly 50. The first docking assembly 80 is connected to the bottom of the vacuum tank 40, and the second docking assembly 90 is connected to the top of the recovery device 110.

[0024] A workbench 11 and a positioning frame 12 are provided on the support frame 10. An upper space is formed above the workbench 11, and a lower space is formed below the workbench 11. The positioning frame 12 is provided in the upper space. The positioning frame 12 divides the upper space into a front cavity 13 and a rear cavity 14. The front side of the support frame 10 is also provided with an operating port 15 connected to the front cavity 13. The positioning frame 12 is provided with a stepped surface 121 on the side of the rear cavity 14. The safety grating 120 is installed on both sides of the operating port 15 on the support frame 10. The weighing equipment 100 is fixed on the workbench 11 below the front cavity 13. The quantitative injection pump 30 and the vacuum tank 40 are installed on the stepped surface 121 of the positioning frame 12.

[0025] The feeding module 20 includes a liquid storage barrel 21, a water pump 22 and a top liquid storage tank 23. The liquid storage barrel 21, the water pump 22 and the top liquid storage tank 23 are connected in sequence by pipes. The liquid storage barrel 21 is placed in the lower space of the support frame 10, the water pump 22 is installed on the workbench 11 at the bottom of the rear cavity 14, and the top liquid storage tank 23 is installed on the top of the support frame 10 and extends into the rear cavity 14.

[0026] The evacuation assembly 50 includes a vacuum pump 51 and a filter group 52. The vacuum pump 51, the filter group 52, and the vacuum tank 40 are sequentially connected by pipes. The filter group 52 is disposed in the rear chamber 14 and mounted on the support frame 10. The first docking assembly 80 is provided with a docking head, and the second docking assembly 90 is provided with a docking head, a circulation switch (not shown), and a circulation pump 91. The circulation pump 91 is mounted on the workbench 11 at the bottom of the rear chamber 14. The circulation pump 91 is used to assist in draining liquid from the product 200. The circulation switch can be adjusted to be in an open or closed state.

[0027] The first control valve 61 can be adjusted to a first state, a second state or a third state. When the first control valve 61 is in the first state, the pipeline between the top liquid storage tank 23 of the feeding module 20 and the quantitative injection pump 30 is in a connected state, the pipeline between the feeding module 20 and the vacuum pump 51 is in a cut-off state, and the pipeline between the quantitative injection pump 30 and the vacuum tank 40 is in a cut-off state; when the first control valve 61 is in the second state, the pipeline between the top liquid storage tank 23 of the feeding module 20 and the quantitative injection pump 30 is in a cut-off state, the pipeline between the top liquid storage tank 23 of the feeding module 20 and the vacuum tank 40 is in a cut-off state, and the pipeline between the quantitative injection pump 30 and the vacuum tank 40 is in a connected state; when the first control valve 61 is in the third state, the pipeline between the top liquid storage tank 23 of the feeding module 20 and the quantitative injection pump 30 is in a cut-off state, the pipeline between the feeding module 20 and the vacuum tank 40 is in a connected state, and the pipeline between the quantitative injection pump 30 and the vacuum tank 40 is in a cut-off state.

[0028] The second control valve 71 can be adjusted to a first state or a second state. When the second control valve 71 is in the first state, the pipeline between the vacuum tank 40 and the filter group 52 of the evacuation component 50 is in a connected state, and the vacuum tank 40 is isolated from the external air; when the second control valve 71 is in the second state, the pipeline between the vacuum tank 40 and the filter group 52 of the evacuation component 50 is in a cut-off state, and the vacuum tank 40 is in a connected state with the external air.

[0029] In addition, the present invention further includes a third control valve 140 and a pressurized air pump 130. The pressurized air pump 130, the third control valve 140, and the vacuum pump 51 are sequentially connected by pipelines. The third control valve 140 can be switched to an open or closed state.

[0030] During the liquid injection process, it includes a loading stage, a primary liquid injection stage, a cleaning stage, and a secondary liquid injection stage. During the loading stage, the product 200 is transferred to the weighing device 100, and the docking joints of the first docking assembly 80 and the docking joints of the second docking assembly 90 are buckled onto the liquid inlet and the liquid outlet, and the weighing device 100 weighs the product 200.

[0031] During the initial liquid injection phase, the first control valve 61 switches to the first state, and the third control valve 140 switches to the closed state. The pipeline between the top liquid reservoir 23 of the feeding module 20 and the quantitative injection pump 30 is connected, and the quantitative injection pump 30 draws liquid from the feeding module 20. The second control valve 71 switches to the first state, and the pipeline between the vacuum tank 40 and the filter group 52 of the evacuation assembly 50 is connected. The evacuation assembly 50 evacuates the vacuum tank 40 and the product 200. The evacuation assembly 50 is closed, the first control valve 61 switches to the second state, the circulation switch is closed, and the quantitative injection pump 30 injects liquid into the vacuum tank 40. The first control valve 61 switches to the first state, the second control valve 71 switches to the second state, and the circulation switch is opened. The vacuum tank 40 is connected to the outside air, and the outside air presses some of the liquid in the vacuum tank 40 into the product 200.

[0032] During the cleaning phase, the second control valve 71 switches to the first state, the third control valve 140 switches to the open state, and the pressure pump 130 pressurizes the vacuum tank 40, forcing the remaining liquid in the vacuum tank 40 into the product 200. The liquid in the product 200 flows out of the liquid outlet onto the recovery device 110. During the liquid outflow from the liquid outlet, the internal channels of the product 200 are cleaned. When the drain time is reached, if there is still liquid remaining in the product 200, the pressure pump 130 and the third control valve 140 are closed, the weighing device 100 weighs the product 200 again, and the amount of liquid L that needs to be injected is calculated based on the weighing result. The circulation switch is then switched to the closed state.

[0033] When entering the secondary liquid injection stage, the steps of the above primary liquid injection stage are repeated, and the quantitative injection pump 30 injects the required amount of liquid into the vacuum tank 40, and presses the liquid in the vacuum tank 40 into the product 200 through atmospheric pressure.

[0034] The beneficial effects of the vacuum liquid filling machine of the present invention are as follows: the present invention uses a vacuuming component 50 to vacuum the vacuum tank 40 and the product 200. After the vacuuming is completed, the air pressure is used to quickly press the liquid into the product 200, thereby effectively improving the liquid filling efficiency. In addition, in conjunction with the quantitative injection pump 30 and the weighing device 100, the filling volume is effectively controlled to improve the quality of the product 200.

[0035] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A vacuum liquid injection machine, characterized in that: It includes a support frame, a feeding module, a quantitative injection pump, a first pipeline assembly, a vacuum tank, a second pipeline assembly, an evacuation assembly, a first docking assembly, a second docking assembly, a weighing device, and a recovery device. The first pipeline assembly and the second pipeline assembly are respectively provided with a first control valve and a second control valve. The first pipeline assembly connects the feeding module, the vacuum tank and the quantitative injection pump, the second pipe assembly connects the vacuum tank and the evacuation assembly, the first docking assembly is connected to the bottom of the vacuum tank, and the second docking assembly is connected to the recovery device.

2. The vacuum liquid injection machine according to claim 1, characterized in that: A workbench and a positioning frame are provided on the support frame, and an upper space is formed above the workbench. The positioning frame is provided in the upper space, and the positioning frame divides the upper space into a front cavity and a rear cavity. An operating port connected to the front cavity is also provided on the front side of the support frame, and a stepped surface is provided on the side of the positioning frame close to the rear cavity.

3. The vacuum liquid injection machine according to claim 2, characterized in that: The feeding module includes a liquid storage barrel, a water pump and a top liquid storage tank, and the liquid storage barrel, the water pump and the top liquid storage tank are connected in sequence through pipelines.

4. The vacuum liquid injection machine according to claim 3, characterized in that: A lower space is formed below the workbench, the liquid storage barrel is placed in the lower space of the support frame, the water pump is installed on the workbench at the bottom of the rear cavity, and the top liquid storage tank is installed on the top of the support frame and extends into the rear cavity.

5. The vacuum liquid injection machine according to claim 2, characterized in that: The weighing device is fixed on the workbench below the front cavity, and the quantitative injection pump and the vacuum tank are installed on the stepped surface of the positioning frame.

6. The vacuum liquid injection machine according to claim 2, characterized in that: It also includes a safety grating, which is installed on both sides of the operating port on the supporting frame.

7. The vacuum liquid injection machine according to claim 2, characterized in that: The evacuation assembly includes a vacuum pump and a filter group. The vacuum pump, the filter group and the vacuum tank are connected in sequence through pipelines. The filter group is arranged in the rear cavity and installed on the support frame.

8. The vacuum liquid injection machine according to claim 2, characterized in that: The first docking assembly is provided with a docking head, and the second docking assembly is provided with a docking head and a circulation pump. The circulation pump is installed on a workbench at the bottom of the rear cavity.

9. The vacuum liquid injection machine according to claim 1, characterized in that: It also includes a third control valve and a pressurized air pump, and the pressurized air pump, the third control valve and the vacuum pump are connected in sequence through pipelines.

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