Liquid material filling machine

Abstract

The utility model discloses a liquid material filling machine, which comprises a liquid storage component, a liquid material filling component and a liquid material filling component, the conveying assembly comprises a conveying motor, a driving roller, a tightening roller and a conveying belt, the driving roller and the tightening roller are rotationally connected to the rack, the driving roller is connected to the conveying motor, the conveying belt is wound outside the driving roller and the tightening roller, and an acute included angle is formed between the driving roller and the horizontal plane; the liquid filling assembly comprises a lifting support, a lifting driving mechanism, a filling pipe and a liquid conveying pipe, the filling pipe is connected to the lifting support, a filling valve is arranged in the filling pipe, the top of the filling pipe is connected with the bottom of the liquid conveying pipe, the top of the liquid conveying pipe is connected to the bottom of the liquid storage tank, a flow guide rod is arranged at the bottom of the filling pipe, and an acute included angle is formed between the flow guide rod and the horizontal plane. The flow guide rod and the driving roller incline in the same direction, and the lifting support is connected to a lifting driving mechanism. According to the utility model, air mixed during filling can be reduced, the filling effect is good, and the filling and packaging efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of filling, in particular to a liquid filling machine. Background Art

[0002] Filling is a process in the packaging of liquid products, which injects liquid into packaging containers to be filled. A filling machine is a mechanical device used to inject liquid into packaging containers and is widely used in fields such as the food industry, beverage industry, and daily chemical industry. For example, the prepared liquid essence needs to be packaged through filling.

[0003] In the related art, the filling machine mainly includes a liquid storage container, a conveyor belt, and a filling pipe. When the filling machine works, the packaging container is conveyed to the lower part of the filling pipe through the conveyor belt, and the valve of the filling pipe is opened to fill the liquid material in the liquid storage container into the packaging container. This filling machine is prone to splashing and leakage during the filling process, resulting in waste of liquid material and high cleaning costs. Moreover, this filling method is prone to mixing a large amount of air, affecting the filling effect, and the filling requires long-term static exhaust, resulting in low filling efficiency. Content of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a liquid filling machine, which can accurately fill the liquid material, with good filling effect and high filling efficiency.

[0005] A liquid filling machine according to an embodiment of the utility model includes:

[0006] A liquid storage assembly, including a frame and a liquid storage tank, the liquid storage tank is connected to the frame;

[0007] A conveying assembly, including a conveying motor, a driving roller, a tensioning roller, and a conveyor belt. The driving roller and the tensioning roller are both rotatably connected to the frame, the driving roller is connected to the conveying motor, the conveyor belt is wound around the driving roller and the tensioning roller, the conveying motor is used to drive the conveyor belt to move forward through the driving roller, the conveyor belt is used to convey the packaging container, the tensioning roller is parallel to the driving roller, and an acute angle is formed between the driving roller and the horizontal plane;

[0008] A liquid filling assembly, including a lifting bracket, a lifting driving mechanism, a filling pipe, and an infusion pipe. There are multiple filling pipes, all of which are connected to the lifting bracket. All the filling pipes are located above the conveyor belt. A filling valve is provided in the filling pipe. The top of the filling pipe is connected to the bottom of the infusion pipe, the top of the infusion pipe is connected to the bottom of the liquid storage tank, a guiding rod is provided at the bottom of the filling pipe, and an acute angle is formed between the guiding rod and the horizontal plane. The guiding rod has the same inclination direction as the driving roller. The lifting bracket is connected to the lifting driving mechanism, and the lifting driving mechanism is connected to the frame. The lifting driving mechanism is used to drive the lifting bracket to lift and lower, so that the guiding rod rises out of or descends into the opening of the packaging container.

[0009] In this embodiment, the conveying assembly further includes two guide rails which are located on the opposite sides above the conveyor belt, and the guide rails are connected to the frame.

[0010] In this embodiment, the guide rails are cylinders and are parallel to the conveying direction of the conveyor belt.

[0011] In this embodiment, a plurality of positioning bars are provided on the outer surface of the conveyor belt, and the positioning bars are perpendicular to the conveying direction of the conveyor belt.

[0012] In this embodiment, the diversion rod is an elastic rod structure.

[0013] In this embodiment, the angle between the driving roller and the horizontal plane is α, where 0 < α ≤ 30°, and the angle between the diversion rod and the horizontal plane is β, where 60° ≤ β < 90°.

[0014] In this embodiment, a flow meter is further provided in the filling pipe, and the flow meter is used to detect the liquid material flow rate in the filling pipe.

[0015] In this embodiment, the liquid filling assembly further includes a guide post and a guide sleeve. The upper and lower ends of the guide post are respectively connected to the lifting drive mechanism and the lifting bracket, the guide sleeve is connected to the frame, and the guide post is slidably connected in the guide sleeve.

[0016] In this embodiment, the conveying assembly further includes a plurality of reinforcing rollers, each of which is parallel to the driving roller, and the reinforcing rollers abut against the bottom surface of the conveyor belt.

[0017] The embodiment of the present utility model has at least the following beneficial effects:

[0018] By arranging a guide rod at the bottom of the filling tube, the liquid output from the filling tube can be guided to the inner wall of the packaging container. The guide rod combined with the inner wall of the packaging container guides the liquid to slide down, which can effectively improve the smoothness and accuracy of the liquid flow during the filling process, effectively reduce splashing and leakage, have high filling accuracy, and can effectively reduce the impact force formed during liquid filling, thereby effectively reducing the air mixed in during liquid filling, and can effectively reduce the generation of bubbles in the liquid in the packaging container, which can effectively ensure the quality of the liquid, have a good filling effect, and can effectively save the time required for standing still due to the discharge of air in the liquid, which can effectively improve the canning and packaging efficiency; in addition, by arranging an acute angle between the active roller and the horizontal plane, the packages on the conveyor belt can be An acute angle is formed between the packaging container and the horizontal plane, the packaging container and the guide rod are inclined in the same direction, the inner wall of the packaging container can be supported directly below the guide rod, and the bottom end of the guide rod is located above the inner wall of the packaging container. The liquid can slide down close to the inner wall of the packaging container under the action of gravity, which can prevent the liquid from directly falling to the bottom of the packaging container due to the action of gravity when sliding down the inner wall of the packaging container, and can effectively prevent excessive impact force during liquid filling. Moreover, the inner wall of the packaging container is inclined close to the bottom end of the guide rod, which can shorten the distance between the bottom end of the guide rod and the inner wall of the packaging container, thereby significantly shortening the distance that the liquid falls freely from the guide rod, which can further reduce the impact force generated during liquid filling and can significantly improve the filling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a liquid material filling machine according to an embodiment of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the liquid material filling machine according to an embodiment of the utility model from another viewing angle;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the liquid filling machine of the embodiment of the utility model after the frame is hidden;

[0023] Figure 4 This is a schematic diagram of the main structure of the liquid filling machine according to an embodiment of the utility model;

[0024] Figure 5 For along Figure 4 Schematic diagram of the cross-sectional structure along the line A-A'.

[0025] Reference numerals:

[0026] Liquid storage assembly 100, frame 110, liquid storage tank 120;

[0027] Transfer component 200, transfer motor 210, driving roller 220, tensioning roller 230, conveyor belt 240, positioning strip 241, guide rail 250, reinforcing roller 260;

[0028] Liquid filling component 300, lifting bracket 310, lifting drive mechanism 320, filling pipe 330, filling valve 331, flow guiding rod 332, flowmeter 333, infusion pipe 340, guide post 350, guide sleeve 360;

[0029] Packaging container 400. Specific embodiments

[0030] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, left, right, front, back, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation of the present invention.

[0032] In the description of the present invention, if the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0034] Liquid filling is a process in the packaging of liquid products, which injects liquid into the packaging containers to be filled. A liquid filling machine is a mechanical device used to inject liquid into packaging containers and is widely used in fields such as the food industry, beverage industry, and daily chemical industry. For example, the prepared liquid essence needs to be packaged through liquid filling.

[0035] In the related art, the filling machine mainly includes a liquid storage container, a conveyor belt, and a filling pipe. When the filling machine is working, the packaging container is conveyed to the lower part of the filling pipe through the conveyor belt, and the valve of the filling pipe is opened to fill the liquid material in the liquid storage container into the packaging container. During the filling process of this filling machine, splashing and leakage are likely to occur, resulting in waste of liquid material and high cleaning costs. Moreover, this filling method is likely to cause a large amount of air to be mixed in, affecting the filling effect, and the filling requires long-term static exhaust, resulting in low filling efficiency.

[0036] In the existing liquid material filling industry, although the traditional liquid material filling machine can achieve basic filling functions, it often has problems such as low filling efficiency, insufficient filling accuracy, easy splashing and leakage, and low automation level. Specifically, traditional filling machines mostly use filling heads at fixed positions for operation, which are difficult to adapt to packaging containers of different sizes and shapes, resulting in limited filling speed and easy damage to containers. In addition, during the filling process, due to the inaccurate alignment between the filling head and the opening of the packaging container, liquid often splashes out or the container is not completely filled, affecting the filling quality and product appearance. At the same time, the lack of a flexible lifting and adjustment mechanism makes it difficult for the equipment to adapt to the rapid changeover requirements on the production line, increasing production costs and downtime.

[0037] The following refers to the attached Figure 1 to the attached Figure 5 , to describe the liquid material filling machine of the embodiment of the present invention, which can accurately fill the liquid material, with good filling effect and high filling efficiency.

[0038] Referring to Figures 1 to 5 , a liquid material filling machine according to an embodiment of the present invention includes:

[0039] A liquid storage assembly 100, including a frame 110 and a liquid storage tank 120, the liquid storage tank 120 is connected to the frame 110, and the liquid storage tank 120 is used to store liquid material;

[0040] The conveying assembly 200 includes a conveying motor 210, a driving roller 220, a tensioning roller 230 and a conveyor belt 240. The driving roller 220 and the tensioning roller 230 are both rotatably connected to the frame 110. The driving roller 220 is connected to the conveying motor 210, and the housing of the conveying motor 210 is connected to the frame 110. The conveyor belt 240 is wound around the outside of the driving roller 220 and the tensioning roller 230. The conveying motor 210 is used to drive the conveyor belt 240 to move forward through the driving roller 220. The conveyor belt 240 is used to carry and convey the packaging container 400. The tensioning roller 230 is parallel to the driving roller 220. An acute angle is formed between the driving roller 220 and the horizontal plane, so that an acute angle is also formed between the conveyor belt 240 and the horizontal plane, so that the packaging container 400 on the conveyor belt 240 is placed obliquely. When the liquid material falls, a non-right angle can be formed between the liquid material and the inner wall of the side surface of the packaging container 400, which can effectively reduce the impact force between the liquid material and the inner wall of the side surface of the packaging container 400, and thus can effectively reduce the mixing of air;

[0041] The liquid filling assembly 300 includes a lifting bracket 310, a lifting drive mechanism 320, a filling tube 330 and an infusion tube 340. The liquid filling assembly 300 is arranged above the conveying assembly 200. The lifting drive mechanism 320 can be set as a mechanism that can be used to drive a linear lifting motion, such as a cylinder or a screw positioning mechanism. There are multiple filling tubes 330 and each filling tube 330 is connected to the lifting bracket 310. The multiple filling tubes 330 can fill multiple packaging containers 400 at the same time, which can effectively improve the filling efficiency. All the filling tubes 330 are located above the conveyor belt 240. The filling tube 330 is provided with a filling valve 331. The filling valve 331 can control the opening and closing of the filling tube 330 to control the output or stop of the liquid from the filling tube 330. The top of the filling tube 330 is connected to the bottom of the infusion tube 340, and the top of the infusion tube 340 is connected to the bottom of the liquid storage tank 120, so that the liquid in the liquid storage tank 120 can flow into the filling tube 330 through the infusion tube 340 under the action of gravity. The infusion tube 340 can be a pipe structure such as a bellows or a hose that can adapt to the lifting action by deformation. A guide rod 332 is provided at the bottom of the filling tube 330, and an acute angle is formed between the guide rod 332 and the horizontal plane. The angle between the guide rod 332 and the horizontal plane is greater than the angle between the active roller 220 and the horizontal plane, which can effectively control the angle between the guide rod 332 and the side inner wall of the packaging container 400, so as to avoid excessive impact force between the liquid and the side inner wall of the packaging container 400. The guide rod 332 is inclined in the same direction as the active roller 220, that is, the active roller 220 and the guide rod 332 are inclined in the same direction, and they form an acute angle with the horizontal plane respectively, and the guide rod 332 is inclined from top to bottom toward the first direction. Similarly, the bottom surface of the packaging container 400 is inclined from top to bottom toward the first direction, which can make the side inner wall of the packaging container 400 located below the bottom end of the guide rod 332, and can effectively receive the liquid falling from the guide rod 332. At the same time, the liquid can be made to slide down the side inner wall of the packaging container 400 by using gravity, and the side inner wall of the inclined packaging container 400 is close to the bottom end of the guide rod 332, which can further shorten the distance between the bottom end of the guide rod 332 and the packaging container. The distance between the inner walls of the side of the container 400 can significantly shorten the distance that the liquid falls freely from the guide rod 332, can effectively reduce the mixing of air, can significantly improve the filling effect, and can reduce the generation of bubbles by reducing the mixing of air, which can ensure the quality of the liquid to a certain extent. At the same time, it can effectively shorten the static time due to exhausting air, and can effectively improve the filling and packaging efficiency. The lifting bracket 310 is connected to the lifting drive mechanism 320, and the lifting drive mechanism 320 is connected to the frame 110. The lifting drive mechanism 320 is used to drive the lifting bracket 310 to rise and fall, so that the filling tube 330 can be lifted relative to the opening of the packaging container 400 on the conveyor belt 240, so that the guide rod 332 can be lifted from or lowered into the opening of the packaging container 400.The packaging container 400 can be a plastic bucket, a plastic bottle or other container products for packaging.

[0042] The working process of the liquid filling machine of the utility model is as follows: store the liquid material in the liquid storage tank 120, and place the packaging container 400 on the conveyor belt 240. Start the conveyor motor 210 to drive the conveyor belt 240 to move forward smoothly through the cooperation of the driving roller 220 and the tensioning roller 230. The packaging container 400 on the conveyor belt 240 moves forward synchronously with the conveyor belt 240 to directly below the filling pipe 330, and the conveyor motor 210 stops working; the lifting drive mechanism 320 drives the lifting bracket 310 to descend, so that the guiding rod descends and is inserted under the opening of the packaging container 400. The filling valve 331 controls the conduction of the filling pipe 330, so that the liquid material in the liquid storage tank 120 reaches the guiding rod from the liquid storage tank 120 through the liquid delivery pipe 340 and the filling pipe 330, and then falls along the inner wall of the side surface of the packaging container 400 to the bottom; after the filling is completed, the filling valve 331 closes the filling pipe 330 to stop the discharging, and the lifting drive mechanism 320 drives the lifting bracket 310 and the filling pipe 330 to rise, so that the guiding rod 332 rises away from the opening of the packaging container 400. The conveyor motor 210 drives the conveyor belt 240 to convey to output the filled packaging container 400 and input the packaging container 400 to be filled. The operations of the conveyor motor 210, the lifting drive mechanism 320 and the filling valve 331 are controlled according to programs such as preset time and preset displacement distance.

[0043] By arranging the guiding rod 332 at the bottom of the filling pipe 330, the liquid material output from the filling pipe 330 can be guided to the inner wall of the side surface of the packaging container 400. The guiding rod 332 and the inner wall of the side surface of the packaging container 400 guide the liquid material to slide down, which can effectively improve the smoothness and accuracy of the liquid material flow in the filling process, effectively reduce splashing and leakage, have high filling accuracy, and can effectively reduce the impact force formed when the liquid material is filled, thereby effectively reducing the air mixed in when the liquid material is filled, effectively reducing the generation of bubbles in the liquid material in the packaging container 400, effectively ensuring the quality of the liquid material, having good filling effect, and being able to effectively save the time required for standing still to discharge the air in the liquid material, effectively improving the canning packaging efficiency. The way of inserting the guiding rod 332 into the filling can adapt to different specifications of the packaging container 400, and has strong versatility;

[0044] In addition, by setting an acute angle between the driving roller 220 and the horizontal plane, an acute angle is formed between the packaging container 400 on the conveyor belt 240 and the horizontal plane. The bottom surface of the packaging container 400 and the diversion rod 332 are inclined in the same direction. The inner side wall of the packaging container 400 can be received directly below the diversion rod 332. The bottom end of the diversion rod 332 is located above the inner side wall of the packaging container 400. Under the action of gravity, the liquid material can slide closely along the inner side wall of the packaging container 400, avoiding the direct fall of the liquid material to the bottom of the packaging container 400 due to the action of gravity when sliding along the inner side wall of the packaging container 400. This can effectively avoid excessive impact during liquid filling. Moreover, the inner side wall of the packaging container 400 is inclined near the bottom end of the diversion rod 332, which can shorten the distance between the bottom end of the diversion rod 332 and the inner side wall of the packaging container 400, thereby significantly shortening the free-fall distance of the liquid material from the diversion rod 332, further reducing the impact force generated during liquid filling, and significantly improving the filling effect.

[0045] The angle between the diversion rod 332 and the horizontal plane is greater than the angle between the driving roller 220 and the horizontal plane, which can effectively control the angle between the diversion rod 332 and the inner side wall of the packaging container 400, avoiding excessive impact between the liquid material and the inner side wall of the packaging container 400 and preventing excessive air from being mixed in.

[0046] It can be understood that the conveying assembly 200 further includes two guide rails 250. The two guide rails 250 are located on the opposite sides above the conveyor belt 240. The guide rails 250 are fixedly connected to the frame 110. The guide rails 250 are parallel to the conveying direction of the conveyor belt 240. Through the guide rails 250, the relative position between the packaging container 400 and the conveyor belt 240 can be effectively restricted, effectively avoiding the dropping of the packaging container 400 during filling or conveying, and effectively improving the stability of the processing operation.

[0047] It can be understood that the guide rail 250 is a cylinder. The guide rail 250 is parallel to the conveying direction of the conveyor belt 240. The advancing direction of the top surface of the conveyor belt 240 is the conveying direction. By setting the guide rail 250 as a cylinder extending along the conveying direction of the conveyor belt 240, the contact between the guide rail 250 and the packaging container 400 can be a line contact, effectively reducing the contact area between the guide rail 250 and the packaging container 400. While positioning the packaging container 400, the friction force exerted on the packaging container 400 by the guide rail 250 during the forward conveying of the packaging container 400 can be effectively reduced, effectively improving the stability of the forward movement of the packaging container 400.

[0048] It can be understood that a number of positioning bars 241 are provided on the outer surface of the conveyor belt 240. The positioning bars 241 are perpendicular to the conveying direction of the conveyor belt 240 and parallel to the horizontal plane. A positioning bar 241 is provided in front of and behind each packaging container 400 in the conveying direction. The positioning bar 241 can reliably limit the packaging container 400 and effectively improve the stability of the movement of the packaging container 400 during conveying.

[0049] It can be understood that the flow guide rod 332 is an elastic rod structure. The flow guide rod 332 is made of an elastic material to obtain an elastic rod structure. For example, the flow guide rod 332 can be set as an elastic silica gel rod, an elastic polyurethane rod, etc. When the lifting drive mechanism 320 drives the filling pipe 330 to lift through the lifting bracket 310, the elastic plate structure with good elasticity can improve the insertion or removal efficiency by elastic deformation when inserting or leaving the opening of the packaging container 400, effectively improve the error tolerance rate of the insertion and removal actions, effectively reduce the alignment accuracy requirements of the overall liquid filling machine, effectively reduce the machine cost and use cost, and is suitable for the filling and processing of packaging containers 400 of different specifications, with good versatility.

[0050] It can be understood that the angle between the driving roller 220 and the horizontal plane is α, where 0 < α ≤ 30°. By setting an acute angle of no more than 30 degrees between the driving roller 220 and the horizontal plane, the inclination angle of the packaging container 400 can be effectively controlled, and the packaging container 400 can be prevented from being overly inclined and affecting the filling liquid level height, effectively ensuring the filling effect. The angle between the flow guide rod 332 and the horizontal plane is β, where 60° ≤ β < 90°. By setting an acute angle of no less than 60 degrees between the flow guide rod 332 and the horizontal plane, the turning angle of the liquid material from the filling pipe 330 to the flow guide rod 332 can be prevented from being too large and directly sliding off, effectively ensuring the flow guiding performance of the flow guide rod 332 and effectively ensuring the filling effect and filling efficiency.

[0051] Generally, the plane where the opening of the packaging container 400 is located is parallel to the bottom surface of the packaging container 400. Preferably, by setting α as an acute angle less than 10 degrees, an acute angle of less than 10 degrees can be formed between the plane where the opening of the packaging container 400 is located and the horizontal plane, ensuring the maximum volume of liquid material that can be accommodated in the inclined packaging container 400 at this time and effectively ensuring the filling volume of the packaging container 400.

[0052] It can be understood that a flow meter 333 is also provided in the filling pipe 330. The flow meter 333 is used to detect the liquid material flow rate in the filling pipe 330. By monitoring the liquid material flow rate in the filling pipe 330 through the flow meter 333, the reliability of the filling result can be effectively improved.

[0053] Specifically, a corresponding control program is set according to the application control steps. The controller is connected to the signal output end of the flowmeter 333, the signal control end of the filling valve 331, the signal control end of the conveying motor 210, and the signal control end of the lifting drive mechanism 320. When the controller compares that the flow value from the flowmeter 333 reaches the preset value, the controller controls to shut down the filling valve 331 to stop the filling and feeding action of the filling pipe 330. After that, the controller controls the lifting drive mechanism 320 to drive the support to rise, so that the bottom end of the filling pipe 330 and the diversion pipe leave the packaging container 400. Finally, the controller controls the conveying motor 210 to drive the conveyor belt 240 to move forward, so that the filled packaging container 400 leaves the lower part of the filling pipe 330, and the packaging container 400 to be filled reaches the lower part of the filling pipe 330.

[0054] It can be understood that the conveying assembly 200 can also be provided with a photoelectric sensor. Through the photoelectric sensor, the position of the packaging container 400 on the conveyor belt 240 can be sensed. The controller is connected to the signal output end of the photoelectric sensor, and the controller can control the operation of the lifting drive mechanism 320 and the filling valve 331 according to the in-place signal of the photoelectric sensor.

[0055] It can be understood that the liquid filling assembly 300 further includes a guide post 350 and a guide sleeve 360. The upper and lower ends of the guide post 350 are respectively connected to the lifting drive mechanism 320 and the lifting support 310. The guide sleeve 360 is fixedly connected to the frame 110. The guide post 350 is slidably connected through the guide sleeve 360. Through the guide post 350 and the guide sleeve 360, the smoothness of the lifting action of the lifting support 310 can be effectively improved, thereby effectively improving the stability of the lifting action of the filling pipe 330 and effectively improving the reliability of the filling action.

[0056] It can be understood that the conveying assembly 200 further includes a plurality of reinforcing rollers 260. Each reinforcing roller 260 is parallel to the driving roller 220. Each reinforcing roller 260 abuts against the bottom surface of the conveyor belt 240, that is, the conveyor belt 240 also winds around each reinforcing roller 260. Through the reinforcing rollers 260, the firmness of the conveyor belt 240 can be effectively improved, the position deviation of the packaging container 400 caused by the deformation of the conveyor belt 240 can be effectively avoided, and the reliability of the conveying action can be effectively improved.

[0057] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A liquid filling machine, characterized in that: include: A liquid storage assembly (100) comprises a frame (110) and a liquid storage tank (120), wherein the liquid storage tank (120) is connected to the frame (110); A conveying assembly (200), comprising a conveying motor (210), an active roller (220), a tensioning roller (230) and a conveyor belt (240), wherein the active roller (220) and the tensioning roller (230) are both rotatably connected to the frame (110), the active roller (220) is connected to the conveying motor (210), the conveyor belt (240) is wound around the active roller (220) and the tensioning roller (230), the conveying motor (210) is used to drive the conveyor belt (240) forward through the active roller (220), the conveyor belt (240) is used to convey the packaging container (400), the tensioning roller (230) is parallel to the active roller (220), and an acute angle is formed between the active roller (220) and a horizontal plane; The liquid filling assembly (300) comprises a lifting bracket (310), a lifting drive mechanism (320), a filling tube (330) and a liquid infusion tube (340). A plurality of the filling tubes (330) are provided and are all connected to the lifting bracket (310). All the filling tubes (330) are located above the conveyor belt (240). A filling valve (331) is provided in the filling tube (330). The top of the filling tube (330) is connected to the bottom of the liquid infusion tube (340). The top of the liquid infusion tube (340) is connected to the bottom of the liquid storage tank (120). A guide rod (332) is provided at the bottom of the filling tube (330), and an acute angle is formed between the guide rod (332) and the horizontal plane. The guide rod (332) and the active roller (220) have the same inclination direction. The lifting bracket (310) is connected to the lifting drive mechanism (320), and the lifting drive mechanism (320) is connected to the frame (110). The lifting drive mechanism (320) is used to drive the lifting bracket (310) to rise and fall, so that the guide rod (332) rises from or falls into the opening of the packaging container (400).

2. A liquid filling machine according to claim 1, characterized in that: The conveying assembly (200) further comprises two guide rails (250), wherein the two guide rails (250) are located on opposite sides above the conveying belt (240), and the guide rails (250) are connected to the frame (110).

3. A liquid filling machine according to claim 2, characterized in that: The guide rail (250) is a cylinder, and the guide rail (250) is parallel to the conveying direction of the conveyor belt (240).

4. A liquid filling machine according to any one of claims 2 or 3, characterized in that: The outer surface of the conveyor belt (240) is provided with a plurality of positioning strips (241), and the positioning strips (241) are perpendicular to the conveying direction of the conveyor belt (240).

5. The liquid filling machine according to claim 1, characterized in that: The guide rod (332) is an elastic rod structure.

6. The liquid filling machine according to claim 1, characterized in that: The angle between the active roller (220) and the horizontal plane is α, 0<α≤30°, and the angle between the guide rod (332) and the horizontal plane is β, 60°≤β<90°.

7. The liquid filling machine according to claim 1, characterized in that: The filling tube (330) is also provided with a flow meter (333), and the flow meter (333) is used to detect the flow rate of liquid material in the filling tube (330).

8. The liquid filling machine according to claim 1, characterized in that: The liquid filling assembly (300) further comprises a guide column (350) and a guide sleeve (360), wherein the upper and lower ends of the guide column (350) are respectively connected to the lifting drive mechanism (320) and the lifting bracket (310), the guide sleeve (360) is connected to the frame (110), and the guide column (350) is slidably connected to the guide sleeve (360).

9. The liquid filling machine according to claim 1, characterized in that: The conveying assembly (200) further comprises a plurality of reinforcing rollers (260), each of the reinforcing rollers (260) being parallel to the active roller (220), and the reinforcing rollers (260) being in contact with the bottom of the top surface of the conveying belt (240).

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