A nozzle for a quantitative filling machine

Abstract

The utility model discloses a kind of spray heads for quantitative filling machine, it is related to filling spray head technical field, including measuring cylinder, the top end of the measuring cylinder is fixedly connected with sealing cover, the top end of the sealing cover is fixedly installed with cylinder one, the output end of the cylinder one is through the upper end of sealing cover and is fixedly connected with connecting rod, the other end of the connecting rod is fixedly connected with piston body, the upper end of the piston body is fixedly connected with two limit blocks, the outer surface of the measuring cylinder is communicated with liquid inlet pipe, the middle part of the liquid inlet pipe is provided with liquid inlet valve, piston body is moved by cylinder one, pressure is exerted to liquid in measuring cylinder, so that liquid can overcome viscous resistance from nozzle and be sprayed, greatly improve the filling speed of viscous liquid, thereby improve the overall filling efficiency, by scraper assembly initiative accurate scraping nozzle outer wall residual liquid, effectively solve the problem of traditional spray head drip hanging liquid.

Description

Technical Field

[0001] This utility model relates to the field of filling nozzle technology, specifically to a nozzle for a quantitative filling machine. Background Technology

[0002] A filling machine is a machine used to fill containers with liquids, semi-fluids, pastes, or certain solid materials. It is widely used in the food, beverage, pharmaceutical, chemical, and cosmetic industries and is an indispensable piece of equipment in modern packaging production lines.

[0003] In current filling machine nozzles, the solution falls under gravity, but for viscous liquids, the viscous resistance is large during the fall, resulting in poor liquid flow and affecting filling efficiency. Furthermore, during the filling process, liquid is prone to remain at the nozzle position, causing dripping. The dripping liquid can not only splash onto the outer surface of the container and cause contamination, but may also contaminate the working environment. Therefore, a nozzle for quantitative filling machines is proposed to solve the above-mentioned problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, a nozzle for a quantitative filling machine is provided. This technical solution solves the problems of low filling efficiency and liquid residue contamination caused by the nozzle mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a nozzle for a quantitative filling machine, comprising a metering cylinder, a sealing cap fixedly connected to the top of the metering cylinder, a cylinder one fixedly installed at the top of the sealing cap, the output end of the cylinder one penetrating the upper end of the sealing cap and fixedly connected to a connecting rod, a piston body fixedly connected to the other end of the connecting rod, two limiting blocks fixedly connected to the upper end of the piston body, an inlet pipe connected to the outer surface of the metering cylinder, an inlet valve provided in the middle of the inlet pipe, a connecting pipe one connected to the lower end of the metering cylinder, an outlet valve connected to the other end of the connecting pipe one, a connecting pipe two connected to the other end of the outlet valve, a nozzle fixedly connected to the other end of the connecting pipe two, a fixing sleeve fixedly connected to the outer surface of the metering cylinder above the inlet pipe, and scraper assemblies provided at both ends of the fixing sleeve.

[0006] Preferably, the scraper assembly includes an L-shaped connecting rod and guide posts. The L-shaped connecting rod is fixedly connected to the outer surface of the fixed sleeve. The guide posts are fixedly connected to the end of the L-shaped connecting rod away from the fixed sleeve. Cylinder II is fixedly installed at the ends of the two guide posts that are far apart from each other. The output ends of the two cylinder II pass through the ends of the two guide posts that are far apart from each other and are fixedly connected to C-shaped scrapers. A liquid collection tank is fixedly connected to the lower end of the guide posts. A negative pressure recovery channel is provided below the C-shaped scraper. The ends of the two negative pressure recovery channels that are far apart from each other are connected to the liquid collection tank.

[0007] Preferably, the top of the guide post is provided with a quick-connect interface, the upper end of the quick-connect interface is connected to an external pipe, the inside of the guide post is provided with a flexible hose, one end of the flexible hose is connected to the lower end of the quick-connect interface, and the other end of the flexible hose is connected to a cleaning nozzle.

[0008] Preferably, a displacement sensor is provided at the front end of the guide post.

[0009] Preferably, a vacuum pump is fixedly connected to the lower end of the liquid collection tank.

[0010] Preferably, a sealing ring is provided between the piston body and the inner wall of the metering cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: by driving the piston body to move through the cylinder, pressure is applied to the liquid in the metering cylinder, so that the liquid can overcome the viscous resistance caused by viscosity and spray out from the nozzle, which greatly improves the filling speed of viscous liquid, thereby improving the overall filling efficiency. The scraper assembly actively and accurately scrapes off the liquid remaining on the outer wall of the nozzle, effectively solving the problem of dripping and hanging liquid in traditional nozzles. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the measuring cylinder of this utility model; Figure 3 This is a three-dimensional structural diagram of the present invention from another perspective; Figure 4 for Figure 2 A magnified view of a portion of point A in the middle; Figure 5 This is a schematic diagram of the internal structure of the guide column in this utility model.

[0013] The numbers on the map are: 1. Measuring cylinder; 2. Sealing cap; 3. Cylinder 1; 4. Connecting rod; 5. Piston body; 6. Limiting block; 7. Inlet pipe; 8. Inlet valve; 9. Connecting pipe 1; 10. Outlet valve; 11. Connecting pipe 2; 12. Nozzle; 13. Fixing sleeve; 14. Scraper assembly; 1401. L-shaped connecting rod; 1402. Guide column; 1403. Cylinder 2; 1404. C-shaped scraper; 1405. Collection tank; 1406. Negative pressure recovery channel; 15. Quick-connect interface; 16. Hoses; 17. Cleaning nozzle; 18. Displacement sensor; 19. Vacuum pump; 20. Sealing ring. Detailed Implementation

[0014] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0015] Reference Figures 1-5 As shown, a nozzle for a quantitative filling machine includes a metering cylinder 1. A sealing cap 2 is fixedly connected to the top of the metering cylinder 1. A cylinder 3 is fixedly installed on the top of the sealing cap 2. The output end of the cylinder 3 passes through the upper end of the sealing cap 2 and is fixedly connected to a connecting rod 4. The other end of the connecting rod 4 is fixedly connected to a piston body 5. A sealing ring 20 is provided between the piston body 5 and the inner wall of the metering cylinder 1. The sealing ring 20 ensures the sealing between the metering cylinder 1 and the piston body 5 to prevent liquid leakage during the filling process. Two limiting blocks 6 are fixedly connected to the upper end of the piston body 5. The limiting blocks 6 can limit the movement range of the piston body 5 to prevent the piston from exceeding the predetermined stroke. A liquid inlet pipe 7 is connected to the outer surface of the metering cylinder 1. The other end of the liquid inlet pipe 7 is connected to an external solution inlet. A liquid inlet valve 8 is provided in the middle of the liquid inlet pipe 7. A connecting pipe 9 is connected to the lower end of the metering cylinder 1. The other end of the connecting pipe 9 is connected to an outlet valve 10. The piston body 5 is driven by the cylinder 3 to move, thereby controlling the liquid in the metering cylinder 1. The body applies pressure, enabling the liquid to overcome the viscous resistance caused by viscosity and spray out from the nozzle 12, which greatly improves the filling speed of viscous liquid and thus improves the overall filling efficiency. The other end of the outlet valve 10 is connected to the connecting pipe 2 11, and the other end of the connecting pipe 2 11 is fixedly connected to the nozzle 12. When the filling operation is performed, the inlet valve 8 is opened and the outlet valve 10 is closed. The cylinder 1 3 is driven to pull the connecting rod 4 and the piston body 5 upward, drawing the liquid from the inlet pipe 7 into the metering cylinder 1. When a certain amount is reached, the inlet valve 8 is closed and the outlet valve 10 is opened. The entire nozzle device moves down close to the container. The cylinder 1 3 pushes the piston body 5 downward, pressing the liquid into the nozzle 12 to fill the container. The outer surface of the metering cylinder 1 is fixedly connected to the fixing sleeve 13 above the inlet pipe 7. Both ends of the fixing sleeve 13 are provided with scraper assemblies 14. The scraper assembly 14 actively and accurately scrapes away the liquid remaining on the outer wall of the nozzle 12, effectively solving the problem of dripping and hanging liquid in traditional nozzles. Furthermore, the scraper assembly 14 includes an L-shaped connecting rod 1401 and a guide post 1402. The L-shaped connecting rod 1401 is fixedly connected to the outer surface of the fixing sleeve 13, and the guide post 1402 is fixedly connected to the end of the L-shaped connecting rod 1401 away from the fixing sleeve 13. A quick-connect interface 15 is provided at the top of the guide post 1402, and the upper end of the quick-connect interface 15 is connected to an external pipe. A flexible hose 16 is provided inside the guide post 1402. One end of the flexible hose 16 is connected to the lower end of the quick-connect interface 15, and the other end of the flexible hose 16 is connected to a cleaning nozzle 17. 6. The cleaning fluid is connected to the external cleaning pipeline via the quick-connect interface 15. The cleaning fluid reaches the cleaning nozzle 17 through the hose 16 to clean the C-shaped scraper 1404 and the negative pressure recovery channel 1406. A displacement sensor 18 is provided at the front end of the guide column 1402. The displacement sensor 18 can be of model MSE-TS803 or other sensors that can achieve the same function. The displacement sensor 18 is used to detect the actual displacement of the C-shaped scraper 1404 to ensure that the C-shaped scraper 1404 is accurately moved to the preset position under the drive of the cylinder 1403. The two guide columns... Cylinder 1403 is fixedly installed at the far ends of the guide columns 1402. The output ends of the two cylinders 1403 pass through the far ends of the two guide columns 1402 and are fixedly connected to C-shaped scrapers 1404. The shape of the C-shaped scrapers 1404 matches the nozzle 12 so that they can fit tightly. A liquid collection tank 1405 is fixedly connected to the lower end of the guide column 1402. A vacuum pump 19 is fixedly connected to the lower end of the liquid collection tank 1405. Protective covers are provided on the outside of cylinder 13, vacuum pump 19, and cylinder 1403. A negative pressure recovery channel 1406 is provided below the nozzle 12. The ends of the negative pressure recovery channels 1406 that are far apart from each other are connected to the collection tank 1405. At the moment the filling is finished, the cylinder 1403 drives the C-shaped scraper 1404 to move horizontally and stick to the outer wall of the nozzle 12. When the entire nozzle device moves upward, the C-shaped scraper 1404 scrapes off the residual liquid in the nozzle. The scraped liquid falls into the negative pressure recovery channel 1406. Then, the vacuum pump 19 is started to generate negative pressure in the collection tank 1405, so that the liquid enters the collection tank 1405 through the negative pressure recovery channel 1406 for collection.

[0016] The usage process of this utility model is as follows: First, open the inlet valve 8 and close the outlet valve 10. Drive cylinder 3 to pull the connecting rod 4 and piston body 5 upward, drawing liquid from the inlet pipe 7 into the metering cylinder 1. When a certain amount is reached, close the inlet valve 8 and open the outlet valve 10. The entire nozzle device moves down close to the container. Cylinder 3 pushes the piston body 5 downward, pressing the liquid into the nozzle 12 to fill the container. At the moment the filling is completed, cylinder 2 1403 drives the C-shaped scraper 1404 to move horizontally and closely adhere to the nozzle 12. When the entire nozzle assembly moves upward, the C-shaped scraper 1404 scrapes away the residual liquid from the nozzle. The scraped liquid falls into the negative pressure recovery channel 1406. Then, the vacuum pump 19 is activated to create negative pressure in the collection tank 1405, causing the liquid to enter the collection tank 1405 through the negative pressure recovery channel 1406 for collection. Afterward, the hose 16 can be connected to the external cleaning pipeline through the quick-connect interface 15. The cleaning fluid reaches the cleaning nozzle 17 through the hose 16 to clean the C-shaped scraper 1404 and the negative pressure recovery channel 1406.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A nozzle for a quantitative filling machine, comprising a metering cylinder (1), characterized in that: The metering cylinder (1) is fixedly connected to a sealing cap (2). A cylinder (3) is fixedly installed on the top of the sealing cap (2). The output end of the cylinder (3) passes through the upper end of the sealing cap (2) and is fixedly connected to a connecting rod (4). The other end of the connecting rod (4) is fixedly connected to a piston body (5). The upper end of the piston body (5) is fixedly connected to two limiting blocks (6). The outer surface of the metering cylinder (1) is connected to an inlet pipe (7). An inlet valve (8) is provided in the middle of the inlet pipe (7). The lower end of the metering cylinder (1) is connected to a connecting pipe (9). The other end of the connecting pipe (9) is connected to an outlet valve (10). The other end of the outlet valve (10) is connected to a connecting pipe (11). The other end of the connecting pipe (11) is fixedly connected to a nozzle (12). The outer surface of the metering cylinder (1) is fixedly connected to a fixing sleeve (13) above the inlet pipe (7). Both ends of the fixing sleeve (13) are provided with scraper assemblies (14).

2. The nozzle for a quantitative filling machine according to claim 1, characterized in that: The scraper assembly (14) includes an L-shaped connecting rod (1401) and a guide post (1402). The L-shaped connecting rod (1401) is fixedly connected to the outer surface of the fixed sleeve (13). The guide post (1402) is fixedly connected to the end of the L-shaped connecting rod (1401) away from the fixed sleeve (13). Cylinder 2 (1403) is fixedly installed at the ends of the two guide posts (1402) that are far apart from each other. The output ends of the two cylinders (1403) pass through the ends of the two guide posts (1402) that are far apart from each other and are fixedly connected to C-shaped scrapers (1404). A liquid collection tank (1405) is fixedly connected to the lower end of the guide post (1402). A negative pressure recovery channel (1406) is provided below the C-shaped scraper (1404). The ends of the negative pressure recovery channels (1406) that are far apart from each other are connected to the liquid collection tank (1405).

3. The nozzle for a quantitative filling machine according to claim 2, characterized in that: The top of the guide post (1402) is provided with a quick-connect interface (15), and a hose (16) is provided inside the guide post (1402). One end of the hose (16) is connected to the lower end of the quick-connect interface (15), and the other end of the hose (16) is connected to a cleaning nozzle (17).

4. The nozzle for a quantitative filling machine according to claim 2, characterized in that: A displacement sensor (18) is provided at the front end of the guide post (1402).

5. A nozzle for a quantitative filling machine according to claim 2, characterized in that: A vacuum pump (19) is fixedly connected to the lower end of the liquid collection tank (1405).

6. The nozzle for a quantitative filling machine according to claim 1, characterized in that: A sealing ring (20) is provided between the piston body (5) and the inner wall of the metering cylinder (1).

Images