Pesticide filling machine easy to clean

Abstract

The utility model relates to the technical field of pesticide packaging machines, and discloses an easy-to-clean pesticide filling machine which comprises a pesticide box, a filling cylinder and a filling head, the filling cylinder comprises a cylinder barrel, a piston and a piston rod, the piston is arranged in the cylinder barrel in a sliding mode, the piston is fixedly connected to one end of the piston rod in a sleeved mode, and the other end of the piston rod extends out of the cylinder barrel. The cylinder barrel is arranged in the vertical direction, the piston rod is located at the top of the cylinder barrel and is of a hollow structure, the top end of the piston rod communicates with the pesticide box through a first on-off valve, and the bottom of the cylinder barrel communicates with the filling head through a second on-off valve; the medicine box, the filling cylinder and the filling head are sequentially arranged from top to bottom, the cleaning tank is arranged under the filling head, the liquid suction end of the circulating pump is communicated with the bottom end of the cleaning tank, and the liquid discharge end of the circulating pump is communicated with the top of the medicine box through a liquid discharge pipe; the pesticide filling machine has a circulating cleaning function, so that cleaning is more convenient, washing water is recycled, and water resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of pesticide packaging machines, and particularly relates to a pesticide filling machine that is easy to clean. Background Art

[0002] A liquid pesticide filling machine refers to equipment for automatically packaging liquid pesticides in bottles, cans, bags, etc. It usually includes a medicine tank, a driving mechanism, and a filling mechanism. The filling mechanism includes a filling cylinder and a filling head. When in use, the filling cylinder realizes quantitative filling by the principle of a syringe. In the production of liquid pesticide filling, it is often necessary to change the product variety. Each time the variety is changed, the filling machine needs to be cleaned to avoid the residual pesticides of the previous variety affecting the product quality of the next variety. In actual production, the frequency of changing varieties and cleaning the filling machine is relatively high. However, for traditional filling machine models, decylinder operation is required during each cleaning, and the cleaning is complex. The cleaning of pesticide filling machines has always been a pain point in the industry.

[0003] In response to this, we have developed a pesticide filling machine that is convenient for cleaning and discharging air bubbles when changing the filling variety (Chinese utility model patent, application number: CN202323371465.1). By designing the piston rod of the filling cylinder into a hollow structure, it is no longer necessary to start the equipment to make the piston reciprocate in the cylinder multiple times during cleaning. Instead, the first opening and closing valve and the second opening and closing valve can be directly opened simultaneously to form a passage, and the passage between the medicine tank, the filling cylinder, and the filling head can be directly flushed with a pressurized water source. The cleaning process of this model is convenient, overcoming the pain point of difficult cleaning of pesticide filling machines. However, after being put on the market, some defects are still exposed. It is mainly reflected in that this model uses an external pressurized water source for flushing, requiring users to have their own pressurized water source supply conditions, and this direct flushing method also causes a large amount of water resource waste. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a pesticide filling machine that is easy to clean. This model has a built-in circulating cleaning function, making the cleaning of the pesticide filling machine more convenient, and the flushing water is recycled, which is beneficial to saving water resources.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] An easy-to-clean pesticide filling machine, comprising a medicine tank, a driving mechanism and a plurality of filling mechanisms. The filling mechanism includes a filling cylinder and a filling head. The filling cylinder includes a cylinder barrel, a piston and a piston rod. The piston is slidably arranged in the cylinder barrel. The piston is fixedly sleeved on one end of the piston rod. The other end of the piston rod extends out of the cylinder barrel and is connected with the driving mechanism. The cylinder barrel is basically arranged in a vertical direction. The piston rod is located at the top of the cylinder barrel. The filling mechanism further includes a first on-off valve and a second on-off valve. The piston rod is of a hollow structure. One end of the piston rod is communicated with the inside of the cylinder barrel. The other end of the piston rod is communicated with one end of the first on-off valve. The other end of the first on-off valve is communicated with the medicine tank. The bottom of the cylinder barrel is communicated with one end of the second on-off valve. The other end of the second on-off valve is communicated with the filling head;

[0007] The medicine tank, the filling cylinder and the filling head are arranged in sequence from top to bottom. It further includes a circulating pump and a cleaning tank. The cleaning tank can be placed directly below a plurality of the filling heads. The liquid suction end of the circulating pump is communicated with the bottom end of the cleaning tank. A liquid discharge pipe is communicated with the liquid discharge end of the circulating pump. The other end of the liquid discharge pipe is arranged at the top of the medicine tank.

[0008] Specifically, the liquid discharge pipe is selected as a flexible pipe.

[0009] Specifically, there are a plurality of the liquid discharge pipes. A rotary cleaning ball is communicated with the end of the liquid discharge pipe far away from the circulating pump. The rotary cleaning ball is arranged at the central axis position of the top of the medicine tank.

[0010] Specifically, the cleaning tank and the circulating pump are communicated through a flexible pipe.

[0011] Specifically, it further includes a frame. The medicine tank and the filling head are installed at the front part of the frame. An elevating driving plate, an upper supporting plate and a lower supporting plate are arranged in sequence from top to bottom at the rear part of the frame. The cylinder barrel is fixedly installed on the upper supporting plate. The piston rod is fixedly connected with the elevating driving plate. The cleaning tank is slidably connected with the lower supporting plate.

[0012] Furthermore, it also includes a lifting beam, a lifting motor, a driving shaft and a lifting mechanism; the lifting mechanism includes a driving sprocket, a driven sprocket, a chain and a slide seat, the slide seat can be slid up and down on the frame, the driving sprocket and the driven sprocket are both rotatably connected to the frame, the driving sprocket and the driven sprocket are connected through the chain transmission, and the slide seat is fixedly connected to one side of the chain; the driving shaft is arranged between the medicine box and the filling head, the driving shaft is rotatably connected to the frame, the lifting motor is installed on one side of the frame, and the lifting motor is used to drive the driving shaft to rotate; two lifting mechanisms are symmetrically arranged at both ends of the driving shaft, the driving sprocket is fixedly sleeved on the end of the driving shaft, the two ends of the lifting beam are respectively fixedly connected to the two slide seats, and a number of the filling heads are arranged in a straight line on the lifting beam.

[0013] The beneficial effects of the utility model are:

[0014] This easy-to-clean pesticide filling machine is an upgraded model based on the original pesticide filling machine that is easy to clean and discharge bubbles when changing the filling variety. The layout of the machine makes the medicine box, filling cylinder and filling head arranged from top to bottom, and a circulation pump and a cleaning tank are added. When cleaning is needed, the cleaning water can be directly injected into the cleaning tank, and the water in the cleaning tank can be sucked into the medicine box by starting the circulation pump; after opening the first opening and closing valve and the second opening and closing valve, the water in the medicine box can flow through the filling cylinder and the filling head in turn under the action of its own weight for flushing, and then flow into the cleaning tank for recycling under the suction of the circulation pump. As a result, the upgraded model realizes the circulation cleaning function, which is conducive to saving cleaning water resources, and the cleaning operation process is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of an easy-to-clean pesticide filling machine of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the side structure of an easy-to-clean pesticide filling machine is shown;

[0017] Figure 3 This is a schematic diagram of the principle of a cleaning circuit in an easy-to-clean pesticide filling machine of the utility model;

[0018] Figure 4 This is a schematic diagram of the installation structure of various components inside the rear part of the frame of an easy-to-clean pesticide filling machine of the utility model;

[0019] Figure 5 This is a schematic diagram of the installation structure of various components inside the front part of the frame of an easy-to-clean pesticide filling machine of the utility model;

[0020] In the figure, 1 is the frame, 2 is the medicine box, 3 is the filling cylinder, 4 is the filling head, 5 is the circulation pump, 6 is the cleaning tank, 7 is the drain pipe, 8 is the lifting drive plate, 9 is the upper support plate, 10 is the lower support plate, 11 is the rotary cleaning ball, 12 is the lifting beam, 13 is the lifting motor, 14 is the drive shaft, 15 is the driving sprocket, 16 is the driven sprocket, and 17 is the sliding seat. Detailed implementation mode

[0021] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0022] As Figures 1 to 5 shown, an easily cleanable pesticide filling machine is an upgraded model based on the original pesticide filling machine (Chinese utility model patent, application number: CN202323371465.1) that is convenient for cleaning and discharging air bubbles when changing the filling variety.

[0023] The original pesticide filling machine includes a medicine box 2, a driving mechanism, and several filling mechanisms. The filling mechanism includes a filling cylinder 3 and a filling head 4. The filling cylinder 3 includes a cylinder barrel, a piston, and a piston rod. The piston is slidably arranged in the cylinder barrel. The piston is fixedly sleeved on one end of the piston rod. The other end of the piston rod extends out of the cylinder barrel and is connected to the driving mechanism. The cylinder barrel is basically arranged in a vertical direction, and the piston rod is located at the top of the cylinder barrel. The filling mechanism also includes a first on-off valve and a second on-off valve. The piston rod is a hollow structure. One end of the piston rod is communicated with the inside of the cylinder barrel, the other end of the piston rod is communicated with one end of the first on-off valve, the other end of the first on-off valve is communicated with the medicine box 2, the bottom of the cylinder barrel is communicated with one end of the second on-off valve, and the other end of the second on-off valve is communicated with the filling head 4. In this model, when the driving mechanism drives the piston rod of the filling rod 3 to expand and contract, separately opening the first on-off valve and the second on-off valve can respectively realize the process of the filling cylinder 3 sucking the liquid medicine and discharging the liquid medicine outward (see the description in the application number CN202323371465.1) to achieve quantitative filling. When cleaning is required, opening the first on-off valve and the second on-off valve simultaneously can form a passage for direct flushing.

[0024] On the basis of this model, as Figure 1 、 Figure 2 shown, the medicine box 2, the filling cylinder 3, and the filling head 4 are arranged in sequence from top to bottom, and a circulation pump 5 and a cleaning tank 6 are also provided. When in use, the cleaning tank 6 is placed directly below several filling heads 4, the liquid suction end of the circulation pump 5 is communicated with the bottom end of the cleaning tank 6, a drain pipe 7 is communicated and arranged at the liquid discharge end of the circulation pump 5, and the other end of the drain pipe 7 is arranged at the top of the medicine box 2. Its working principle is as Figure 3As shown, when cleaning is required, cleaning water can be directly injected into the cleaning tank 6 (the height of the cleaning tank 6 is located between the filling head 4 and the conveyor line, and in actual use, it is at the height of the operator's chest and abdomen position, and the water injection operation process is relatively convenient). After starting the circulation pump 5, the water in the cleaning tank 6 can be sucked into the medicine box 2 under its suction; after opening the first on-off valve and the second on-off valve, a passage is formed among the medicine box 2, the filling cylinder 3, and the filling head 4. The medicine box 2, the filling cylinder 3, and the filling head 4 are arranged in sequence from top to bottom. The water in the medicine box 2 can flow through the filling cylinder 3 and the filling head 4 in sequence under the action of its own weight for flushing, and then flows into the cleaning tank 6 to be recycled under the suction of the circulation pump 5. Thus, it can be seen that this upgraded model realizes cyclic cleaning, which is beneficial to saving cleaning water resources, and the water injection process and the cleaning process are relatively convenient.

[0025] In practical applications, one-key control can be achieved through program control to open the first on-off valve, open the second on-off valve, and start the circulation pump. Thus, after injecting cleaning water into the cleaning tank 6, the one-key cleaning function can be realized. After completing the cyclic flushing, the cleaning tank 6 can be moved out from below the filling head 4 and the waste water can be discharged (a drain port is provided at the bottom of the cleaning tank 6 to complete the process of discharging the waste water), and this pesticide filling machine can be quickly put into use. It should be understood that due to the cyclic flushing method, there will inevitably be pesticide residues in the cleaning water during each cyclic cleaning. Therefore, during the actual cleaning process, the circulating water in the cleaning tank 6 needs to be replaced 2 to 3 times to achieve the effect of thorough cleaning.

[0026] During implementation, the cleaning tank 6 can be separately equipped with the filling machine. When cleaning is required, the cleaning tank 6 is placed on the conveyor line to be installed below the filling head 4, and the cleaning tank 6 and the circulation pump 5 are connected through a pipeline. However, the cleaning tank 6 is likely to be lost as an independent accessory, and both the process of placing the cleaning tank 6 and connecting the pipeline require manual operation, and the operation process is still rather troublesome. Therefore, during specific implementation, the cleaning tank 6 and the circulation pump 5 are connected through a flexible hose. The cleaning tank 6 can be placed on one side of the filling machine during normal filling, and when cleaning is required, the cleaning tank 6 can be picked up and placed on the conveyor line, thus omitting the process of connecting the pipeline. Specifically, in the overall layout of this pesticide filling machine, such as Figure 1 、 Figure 2 、 Figure 4As shown, a machine frame 1 is provided. The above-mentioned medicine box 2 and filling heads 4 are installed at the front of the machine frame 1. At the rear of the machine frame 1, a lifting drive plate 8, an upper support plate 9 and a lower support plate 10 are sequentially arranged from top to bottom. The cylinder barrel of the filling cylinder 3 is fixedly installed on the upper support plate 9, and its piston rod is fixedly connected to the lifting drive plate 8. A storage space is formed between the cylinder barrel and the lower support plate 10. The cleaning tank 6 is slidably connected to the lower support plate 10 in a pull-out structure. When cleaning is required, the cleaning tank 6 can be pulled outwards to be located below each filling head 4. After the cleaning is completed, the cleaning tank 6 can be pushed inwards to be stored in this storage space, further making the cleaning operation more convenient and the overall structure of the machine type reasonably arranged.

[0027] During implementation, the drain pipe 7 is selected as a flexible pipe. When performing cyclic cleaning, the drain pipe 7 can be manually held while flushing the inner wall of the medicine box 2. However, since the installation position of the medicine box 2 is relatively high, the flushing operation of its inner wall is also rather troublesome. Therefore, in specific implementation, several drain pipes 7 are provided, such as Figure 3 As shown, a rotating cleaning ball 11 is connected in communication at one end of each drain pipe 7 away from the circulation pump 5. The rotating cleaning ball 11 is arranged at the central axis position of the top of the medicine box; the rotating cleaning ball 11 is an existing off-the-shelf component. When the water flow pumped out by the circulation pump 5 flows out from the drain pipe 7, it can drive the rotating cleaning ball 11 to rotate. Under the action of the rotating cleaning ball 11, the water flow sprays from all around to the inner wall of the medicine box 2, directly completing the cleaning work of the medicine box 2.

[0028] Furthermore, the pesticide filling machine that is easy to clean is also provided with a lifting assembly, such as Figure 1 、 Figure 2 、 Figure 5As shown in the figure, it includes a lifting beam 12, a lifting motor 13, a drive shaft 14 and a lifting mechanism. The lifting mechanism includes a driving sprocket 15, a driven sprocket 16, a chain (not shown in the figure) and a sliding seat 17. The sliding seat 17 is arranged on the frame 1 to be slidable up and down. Both the driving sprocket 15 and the driven sprocket 16 are rotatably connected to the frame 1. The driving sprocket 15 and the driven sprocket 16 are connected by chain drive. The sliding seat 17 is fixedly connected to one side of the chain 16. The drive shaft 14 is arranged between the medicine tank 2 and the filling head 4. The drive shaft 14 is rotatably connected to the frame 1. The lifting motor 13 is installed on one side of the frame 1. The lifting motor 13 is used to drive the drive shaft 14 to rotate. Two lifting mechanisms are symmetrically arranged at both ends of the drive shaft 14. The driving sprocket 15 is fixedly sleeved at the end of the drive shaft 14. Both ends of the lifting beam 12 are fixedly connected to the two sliding seats 17 respectively. A number of filling heads 4 are arranged in a straight line and installed on the lifting beam 12. The working principle of this lifting assembly can be referred to that of the Chinese utility model twenty-eight-head in-line liquid pesticide filling machine (application number CN202420187619.7). Through the lifting motor 13, each filling head 4 can be driven to lift so as to extend the bottom end of the filling head 4 into the packaging bottle during filling to avoid the spilling of pesticides. Compared with this twenty-eight-head in-line liquid pesticide filling machine model, in this model, since the medicine tank 2, the filling cylinder 3 and the filling head 4 are arranged in sequence from top to bottom, and the medicine tank 2 and the filling head 4 are arranged at the front of the frame 1 while the filling cylinder 3 is arranged at the rear of the frame 1, an installation space is formed between the medicine tank 2 and the filling head 4. The drive shaft 14 can be directly arranged in this installation space, making the whole model structure compact.

[0029] The above is only the preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above teachings or the technology or knowledge in related fields. And the changes and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should all be within the protection scope of the appended claims of the present invention.

Claims

1. A pesticide filling machine that is easy to clean, comprising a medicine tank, a driving mechanism, and a plurality of filling mechanisms. The filling mechanism includes a filling cylinder and a filling head. The filling cylinder includes a cylinder barrel, a piston, and a piston rod. The piston is slidably disposed within the cylinder barrel. The piston is fixedly sleeved on one end of the piston rod. The other end of the piston rod extends outside the cylinder barrel and is connected to the driving mechanism. The cylinder barrel is basically arranged in a vertical direction. The piston rod is located at the top of the cylinder barrel. The filling mechanism further includes a first on-off valve and a second on-off valve. The piston rod is a hollow structure. One end of the piston rod is communicated with the inside of the cylinder barrel. The other end of the piston rod is communicated with one end of the first on-off valve. The other end of the first on-off valve is communicated with the medicine tank. The bottom of the cylinder barrel is communicated with one end of the second on-off valve. The other end of the second on-off valve is communicated with the filling head; It is characterized in that The medicine tank, the filling cylinder, and the filling head are arranged in sequence from top to bottom. It further includes a circulation pump and a cleaning tank. The cleaning tank can be placed directly below a plurality of the filling heads. The liquid suction end of the circulation pump is communicated with the bottom end of the cleaning tank. A drain pipe is communicatively arranged at the liquid discharge end of the circulation pump. The other end of the drain pipe is arranged at the top of the medicine tank.

2. The pesticide filling machine that is easy to clean according to claim 1, wherein, The drain pipe is selected to be a flexible pipe.

3. The pesticide filling machine that is easy to clean according to claim 1, wherein, There are a plurality of the drain pipes. A rotating cleaning ball is communicatively arranged at the end of the drain pipe away from the circulation pump. The rotating cleaning ball is arranged at the central axis position of the top of the medicine tank.

4. The pesticide filling machine that is easy to clean according to claim 1, wherein, The cleaning tank and the circulation pump are communicated through a flexible pipe.

5. The pesticide filling machine that is easy to clean according to claim 4, characterized in that, It further includes a frame. The medicine tank and the filling head are installed at the front of the frame. An elevating driving plate, an upper support plate, and a lower support plate are arranged in sequence from top to bottom at the rear of the frame. The cylinder barrel is fixedly installed on the upper support plate. The piston rod is fixedly connected to the elevating driving plate. The cleaning tank is slidably connected to the lower support plate.

6. The pesticide filling machine that is easy to clean according to claim 5, wherein, It further includes a lifting beam, a lifting motor, a driving shaft, and a lifting mechanism; The lifting mechanism includes a driving sprocket, a driven sprocket, a chain, and a sliding seat. The sliding seat is slidably disposed on the frame. Both the driving sprocket and the driven sprocket are rotatably connected to the frame. The driving sprocket and the driven sprocket are connected by the chain. The sliding seat is fixedly connected to one side of the chain; The driving shaft is arranged between the medicine tank and the filling head. The driving shaft is rotatably connected to the frame. The lifting motor is installed on one side of the frame. The lifting motor is used to drive the driving shaft to rotate; Two of the lifting mechanisms are symmetrically arranged at both ends of the driving shaft. The driving sprocket is fixedly sleeved on the end of the driving shaft. Both ends of the lifting beam are respectively fixedly connected to the two sliding seats. A plurality of the filling heads are arranged in a straight line and installed on the lifting beam.

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