Filling machine nozzle capable of being quickly replaced

Abstract

The invention relates to the technical field of filling machines, in particular to a filling machine nozzle capable of being rapidly replaced. The device comprises a connecting mechanism, a feeding mechanism, a nozzle mechanism, a sliding mechanism and a tensioning mechanism. The connecting mechanism is used for communicating with an external filling machine; the feeding mechanism is arranged on a rack of an external filling machine; the nozzle mechanism comprises a plurality of nozzle pipes arranged on the feeding mechanism, and filling nozzles of various sizes are arranged below the nozzle pipes; the sliding mechanism enables the nozzle mechanism and the connecting mechanism to move relatively; the tensioning mechanism is connected with the connecting mechanism and the nozzle mechanism. Through the reasonable structural design, rapid replacement of the nozzle is achieved, the working efficiency and flexibility of equipment are improved, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of filling machines, and in particular to a filling machine nozzle that can be quickly replaced. Background Art

[0002] As an important production equipment in the food, beverage and other industries, the main function of the filling machine is to accurately fill liquid or semi-fluid materials into various containers. In recent years, with the diversification of market demand and technological progress, the design and manufacture of filling machines have also been continuously innovated and improved. Especially in terms of improving production efficiency and flexibility, one of the research and development focuses of modern filling machines is how to achieve rapid replacement of nozzles to meet the needs of products of different specifications. Although the traditional fixed nozzle design has high stability, it is not flexible enough when facing diversified production needs. Frequent shutdowns to adjust the nozzles are not only time-consuming and labor-intensive, but also significantly affect the work efficiency of the entire production line.

[0003] In order to solve this problem, the industry has proposed a variety of solutions to achieve rapid replacement of nozzles. Specifically, common methods include the use of detachable nozzles and modular design. Detachable nozzles are usually quickly assembled with the main equipment through threaded connections or other quick-connect methods. This method is easy to operate and suitable for small businesses and temporary product conversions. Modular design usually allows different types of nozzles to be easily interchanged through standardized interfaces, thereby improving the versatility and flexibility of the equipment.

[0004] With respect to the above-mentioned related technologies, the inventor believes that although the above-mentioned solutions have solved the problem of nozzle replacement to a certain extent, they still have some obvious shortcomings. For example, although the detachable nozzle is easy to operate, the installation and debugging cycle is long, and it usually needs to be replaced manually. When filling different containers, it is often necessary to stop the machine in the middle and then manually replace the filling nozzle to adapt to different bottles, which is time-consuming and laborious. Summary of the invention

[0005] In order to solve the above problems, the present application provides a filling machine nozzle that can be quickly replaced.

[0006] The present application provides a filling machine nozzle that can be quickly replaced, which adopts the following technical solution: A filling machine nozzle that can be quickly replaced includes a connecting mechanism, the connecting mechanism is used to connect to an external filling machine; a feeding mechanism, the feeding mechanism is arranged on the frame of the external filling machine; a nozzle mechanism, a plurality of nozzle mechanisms are arranged on the feeding mechanism, the nozzle mechanism includes a nozzle tube arranged just below the connecting mechanism, a sealing assembly is arranged at one end of the nozzle tube pointing to the connecting mechanism, the nozzle tube can be connected to the connecting mechanism, a filling nozzle is arranged below the nozzle tube, and the filling nozzle has several sizes; a sliding mechanism, the sliding mechanism is used to make the nozzle mechanism and the connecting mechanism move relative to each other; a tensioning mechanism, the tensioning mechanism is used to connect the connecting mechanism and the nozzle mechanism.

[0007] By adopting the above technical solution, the nozzle of the filling machine realizes the function of quick replacement. First, the connecting mechanism effectively connects the nozzle device with the external filling machine, ensuring smooth and stable liquid transmission. Secondly, the feeding mechanism is arranged on the frame of the external filling machine, so that multiple nozzle mechanisms can move in an orderly manner on a predetermined path, thereby improving production efficiency and flexibility. The design of the nozzle mechanism takes into account the needs of different sizes in particular, and filling nozzles of various specifications can be conveniently installed at the lower end of the nozzle tube to adapt to different packaging containers. The sliding mechanism enables the nozzle mechanism to move smoothly relative to the connecting mechanism through the cooperation between the sliding plate and the sliding block, further improving the convenience and stability of the operation of the equipment. The function of the tensioning mechanism is to maintain a close connection between the nozzle mechanism and the connecting mechanism to prevent leakage problems, thereby ensuring the reliable operation of the entire system. In summary, the present invention not only improves the filling speed and accuracy, but also greatly simplifies the maintenance and replacement process, and is suitable for various high-efficiency production lines.

[0008] Preferably, the connecting mechanism comprises a support plate, a connecting port is arranged on the support plate, the connecting port is connected to an external filling machine, a material guide pipe is arranged below the support plate, the material guide pipe is connected to the connecting port, and the sealing assembly can be arranged below the material guide pipe.

[0009] By adopting the above technical solution, the connecting port on the support plate ensures the effective connection between the external filling machine and the internal material guide pipe, realizing the stable transmission of materials. At the same time, the sealing component is arranged under the material guide pipe, which effectively prevents material leakage and improves the safety and reliability of the equipment. This design not only simplifies the structure, but also facilitates installation and maintenance, greatly improving production efficiency.

[0010] Preferably, the sealing assembly includes a sealing ring arranged at the top end of the nozzle tube, the sealing ring is provided with a sealing protrusion, and also includes a sealing groove arranged at the bottom end of the material guide tube, and the sealing protrusion can be arranged in the sealing groove.

[0011] By adopting the above technical solution, the sealing performance between the nozzle tube and the guide tube is significantly improved. Specifically, the sealing protrusion on the sealing ring can be accurately embedded in the sealing groove at the bottom of the guide tube to form a tight mechanical fit, effectively preventing liquid leakage. At the same time, this design makes the nozzle mechanism more convenient and reliable during replacement, reducing maintenance time and costs caused by poor sealing. In addition, the cooperation between the sealing protrusion and the sealing groove also improves the stability and durability of the system and extends the service life of the equipment.

[0012] Preferably, the sliding mechanism includes a sliding plate arranged on the outer wall of the material guide tube, a sliding rail is arranged below the sliding plate, and also includes a sliding block arranged on the outer wall of the nozzle tube, a sliding groove is arranged on the sliding block, and the sliding block can generate relative movement with the sliding rail.

[0013] By adopting the above technical solution, the setting of the sliding mechanism enables the nozzle mechanism to move smoothly under the guide tube. Specifically, the use of the sliding plate and the sliding rail ensures the stability and accuracy of the nozzle mechanism in the horizontal direction, and the design of the sliding block and the sliding groove can further be used in conjunction with the rail. This design not only effectively reduces the operation time and complexity when replacing the nozzle, but also significantly improves the working efficiency and reliability of the overall equipment.

[0014] Preferably, a guide slope is provided on one side of the sliding rail.

[0015] By adopting the above technical solution, a guide slope is provided on one side of the sliding rail, which can effectively guide the sliding block to move stably along the preset path, reduce friction resistance and wear during the sliding process, make the engagement between the slider and the rail easier, and improve the movement accuracy and stability of the nozzle mechanism.

[0016] Preferably, the feeding mechanism includes two sets of circulating guide rails arranged on the external filling machine frame, the two sets of circulating guide rails are respectively arranged on both sides of the nozzle mechanism, one side of the circulating guide rail is provided with a driving sprocket, and the other side is provided with a driven sprocket, one side of the circulating guide rail is provided with a connecting chain, the driving sprocket is engaged with the connecting chain, the driven sprocket is engaged with the connecting chain, a plurality of connecting seats are provided on the connecting chain, the connecting seats are connected to the sliding block, and also include a sliding assembly, and the nozzle mechanism is slidably connected to the circulating guide rail through the sliding assembly.

[0017] By adopting the above technical solution, the nozzle mechanism can be efficiently circulated and accurately positioned on the external filling frame. Specifically, the transmission system consisting of a circulating guide rail, a sprocket and a connecting chain is used to enable the connecting seat to drive the sliding block and the nozzle mechanism on it to move stably along a predetermined path, ensuring that each nozzle can accurately reach the designated position for filling operations. At the same time, the setting of the sliding assembly further improves the running stability and reliability of the nozzle mechanism, reduces the position deviation caused by mechanical vibration or wear, and thus improves the production efficiency and product quality of the overall system.

[0018] Preferably, the sliding assembly includes two groups of connecting rods arranged below the sliding block, the bottom ends of the connecting rods point to the circulating guide rails, and the connecting rods are provided with sliding wheels.

[0019] By adopting the above technical solution, the design of the sliding assembly enables the nozzle mechanism to move smoothly and stably on the circulating guide rail, thereby improving the stability and accuracy of the filling process. At the same time, the structural design of the connecting rod and the sliding wheel reduces friction, prolongs the service life of the equipment, and reduces maintenance costs.

[0020] Preferably, the tensioning mechanism includes a tensioning plate arranged above the sliding plate, a guide rod is arranged between the tensioning plate and the sliding plate, a tensioning block is slidably connected to the guide rod, a tensioning motor is arranged on the tensioning plate, a tensioning screw is connected to the transmission end of the tensioning motor, the tensioning screw passes through the tensioning plate, the tensioning screw is rotatably connected to the sliding plate, the tensioning block is spirally connected to the tensioning screw, a lifting part is connected to the tensioning block, and also includes a tensioning groove arranged on the sliding block, and the lifting part can be placed in the tensioning groove.

[0021] By adopting the above technical solution, the tensioning mechanism can effectively pull up the nozzle mechanism and connect it tightly to the connecting mechanism to ensure the sealing between the two. Specifically, the tensioning motor drives the tensioning screw to rotate, driving the tensioning block to move up and down along the guide rod, thereby achieving precise control of the nozzle mechanism. This design not only improves the working efficiency and stability of the equipment, but also effectively prevents the problem of liquid leakage that may occur during the filling process.

[0022] Preferably, an anti-friction ring is provided at the bottom of the filling nozzle.

[0023] By adopting the above technical solution, the provision of the anti-friction ring can effectively reduce the friction between the filling nozzle and the container mouth during use, thereby extending the service life of the filling nozzle and improving the working efficiency and stability of the equipment.

[0024] Preferably, a guide tube is provided between the nozzle tube and the filling nozzle.

[0025] By adopting the above technical solution, the guide tube between the nozzle tube and the filling nozzle can ensure the precise alignment of the nozzle and the bottle body during the installation process, improving assembly efficiency and reliability. At the same time, the guide tube can also reduce the risk of leakage caused by position deviation and ensure the smoothness and stability of liquid flow during the filling process.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up the connection mechanism, feeding mechanism, nozzle mechanism, sliding mechanism and tensioning mechanism, the nozzle can be quickly replaced, which greatly reduces the downtime caused by nozzle replacement and improves production efficiency. At the same time, this design makes the operation simpler and faster, and the nozzle can be replaced without complicated tools, further improving work efficiency.

[0027] 2. The nozzle mechanism contains filling nozzles of various sizes, which can meet the needs of products of different specifications and enhance the versatility and flexibility of the equipment. This not only meets the needs of multi-variety small batch production, but also reduces the company's inventory costs and improves equipment utilization.

[0028] 3. The design of the sliding mechanism and the tensioning mechanism enables the nozzle to move smoothly during the working process, ensuring the stability and accuracy of the filling process and avoiding filling errors caused by inaccurate nozzle position. In particular, the design of the guide slope and sliding wheel in the sliding mechanism effectively reduces friction resistance and extends the service life of the equipment; the tensioning mechanism can automatically adjust the position of the nozzle through electric adjustment, ensuring the reliability and accuracy of long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 is a partial cross-sectional schematic diagram of the structure of an embodiment of the present application; Figure 3 This is an embodiment of the present application Figure 2 An enlarged schematic diagram of point A; Figure 4 It is a partial schematic diagram of the structure of an embodiment of the present application.

[0030] Description of reference numerals: 1. connecting mechanism; 101. support plate; 102. communication port; 103. material guide pipe; 2. feeding mechanism; 201. circulation guide rail; 202. driving sprocket; 203. driven sprocket; 204. connecting chain; 205. connecting seat; 206. sliding assembly; 2061. connecting rod; 2062. sliding wheel; 3. nozzle mechanism; 301. nozzle pipe; 302. sealing assembly; 3021. sealing ring; 3022. Sealing protrusion; 3023, sealing groove; 303, filling nozzle; 304, anti-friction ring; 305, guide tube; 4, sliding mechanism; 401, sliding plate; 402, sliding rail; 403, sliding block; 404, sliding groove; 405, guide slope; 5, tensioning mechanism; 501, tensioning plate; 502, guide rod; 503, tensioning block; 504, tensioning motor; 505, tensioning screw; 506, lifting part; 507, tensioning groove. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The present application provides a filling machine nozzle that can be quickly replaced, referring to Figure 1 , Figure 2 It includes a connecting mechanism 1, a feeding mechanism 2, a nozzle mechanism 3, a sliding mechanism 4 and a tensioning mechanism 5. The connecting mechanism 1 is used to connect to an external filling machine. As an optimal embodiment, it is arranged on the transmission end of the pressing mechanism of the external filling machine, and can move back and forth in the vertical direction with the pressing mechanism. One side of the connecting mechanism 1 is connected to the feeding end of the filling machine, and the other side of the connecting mechanism 1 can be connected to the nozzle mechanism 3. As an optimal embodiment, the feeding mechanism 2 is arranged on the transmission end of the pressing mechanism of the external filling machine, and can move back and forth in the vertical direction with the pressing mechanism. It is used to control the movement of the nozzle mechanism 3 so that the nozzle mechanism 3 is combined with the connecting mechanism 1. The nozzle mechanism 3 is used to connect with the connecting mechanism 1. Since the nozzles have different specifications and different models, they can adapt to different models of filling bottles. The sliding mechanism 4 is used to control the position of the nozzle mechanism 3. The tensioning mechanism 5 is used to tighten the nozzle mechanism 3 and the connecting mechanism 1 to prevent leakage after connection.

[0033] refer to Figure 2The connection mechanism 1 is used to connect to an external filling machine to ensure that liquid or semi-fluid materials can be smoothly transmitted to the nozzle. The connection mechanism 1 includes a support plate 101, which is used to connect to the transmission end of the downward pressure mechanism of the external filling machine. The support plate 101 is provided with a connecting port 102, which can be circular, square or other shapes to adapt to different types of filling machine interfaces. A guide pipe 103 is provided below the support plate 101, and the guide pipe 103 is fixed to the support plate 101 by welding or threaded connection. As an embodiment, a switch valve is provided on the guide pipe 103 to prevent leakage of the internal medium during online switching. The material of the guide pipe 103 can be selected from stainless steel or aluminum alloy to improve corrosion resistance and durability.

[0034] The specific working mode of the connection mechanism 1 is as follows: when the external filling machine starts working, the material enters the material guide tube 103 through the connecting port 102, then flows downward along the material guide tube 103, and finally reaches the nozzle mechanism 3. In this process, the sealing component 302 plays a key role in preventing material leakage. Specifically, the sealing ring 3021 is embedded in the sealing groove 3023 at the bottom end of the material guide tube 103 to form a tight sealing effect.

[0035] refer to Figure 3 , Figure 4 The feeding mechanism 2 is arranged on the frame of the external filling machine and is responsible for driving the nozzle mechanism 3 to move along a predetermined path. The feeding mechanism 2 includes two circulating guide rails 201, and a driving sprocket 202 and a driven sprocket 203 are arranged on one side of each guide rail. As an optimal embodiment, the circulating guide rail 201 is connected to the transmission end of the pressing mechanism and can move back and forth in the vertical direction with the pressing mechanism. The driving sprocket 202 and the driven sprocket 203 are also arranged on the transmission end of the pressing mechanism. The driving sprocket 202 is driven by a servo motor to rotate, and the driving sprocket 202 and the driven sprocket 203 are connected by a connecting chain 204. A plurality of connecting seats 205 are evenly arranged on the connecting chain 204, and these connecting seats 205 are connected to the sliding block 403 by pins or buckles, thereby driving the nozzle mechanism 3 to slide on the guide rails.

[0036] The specific working mode of the feeding mechanism 2 is as follows: when the nozzle needs to be replaced, the external servo motor drives the active sprocket 202 to rotate, driving the connecting chain 204 to move along the circulating guide rail 201. The connecting seat 205 on the connecting chain 204 moves accordingly, thereby pushing the nozzle mechanism 3 to slide on the guide rail, so that the nozzle moves to the bottom of the connecting mechanism 1, thereby realizing the rapid replacement of the nozzle. The whole process has a high degree of automation and is easy to operate. The filling nozzle 303 can be replaced online without stopping the machine for manual operation.

[0037] refer to Figure 2The nozzle mechanism 3 is arranged on the feeding mechanism 2, and is composed of a plurality of nozzle units, each of which includes a nozzle tube 301 and a filling nozzle 303. A sealing assembly 302 is arranged at the top of the nozzle tube 301, and the sealing assembly 302 includes a sealing ring 3021 and a sealing protrusion 3022. The sealing ring 3021 can be made of rubber or silicone, and has good elasticity and sealing performance. The sealing protrusion 3022 is embedded in the sealing groove 3023 at the bottom of the guide tube 103 to form a tight sealing effect to prevent liquid leakage. Filling nozzles 303 of various sizes are arranged below the nozzle tube 301, and the appropriate nozzle type can be selected according to actual needs. An anti-friction ring 304 is arranged at the bottom of the filling nozzle 303. The setting of the anti-friction ring 304 can effectively reduce the friction between the filling nozzle 303 and the container mouth during use, thereby extending the service life of the filling nozzle 303 and improving the working efficiency and stability of the equipment. A guide tube 305 is arranged between the nozzle tube 301 and the filling nozzle 303. The guide tube 305 can ensure the precise alignment of the nozzle and the bottle body during the installation process, thereby improving assembly efficiency and reliability. At the same time, the guide tube 305 can also reduce the risk of leakage caused by position deviation and ensure the smoothness and stability of the liquid flow during the filling process.

[0038] The specific working mode of the nozzle mechanism 3 is as follows: when the nozzle mechanism 3 receives the driving force of the feeding mechanism 2, the nozzle tube 301 slides on the guide rail along with the sliding block 403, and after reaching the bottom of the connecting mechanism 1, the original structure on the filling machine works. The filling nozzle 303 is sent into the bottle to be filled, and the filling nozzle 303 under the nozzle tube 301 starts to work, and the material is accurately injected into the container. Since the nozzle mechanism 3 supports nozzles of various sizes, the nozzle of the appropriate size can be selected according to different container specifications to improve work efficiency and accuracy.

[0039] refer to Figure 2 , Figure 3 as well as Figure 4 The sliding mechanism 4 is used to make the nozzle mechanism 3 move relative to the connecting mechanism 1, and mainly includes a sliding plate 401, a sliding rail 402 and a sliding block 403. The sliding plate 401 is fixed on the outer wall of the guide tube 103, the sliding rail 402 is arranged below the sliding plate 401, and the sliding block 403 is installed on the outer wall of the nozzle tube 301. The sliding block 403 is provided with a sliding groove 404, and the sliding groove 404 is sleeved on the sliding rail 402 and slidably connected thereto. A guide slope 405 is also provided on one side of the sliding rail 402 to facilitate the sliding block 403 to enter the track smoothly. The material of the sliding rail 402 can be selected from high-strength steel or hard plastic to ensure wear resistance under long-term use.

[0040] The specific working mode of the sliding mechanism 4 is as follows: when the nozzle mechanism 3 needs to move, the sliding block 403 slides on the sliding rail 402 and smoothly transitions along the guide slope 405 to ensure the smooth movement of the nozzle mechanism 3. The low friction design between the sliding block 403 and the sliding rail 402 reduces the movement resistance, improves the response speed and accuracy of the system, and can also limit the position of the nozzle mechanism 3, so that the nozzle mechanism 3 can move to the bottom of the connecting mechanism 1 to prevent position deviation.

[0041] refer to Figure 2 , the tensioning mechanism 5 is used to connect the connecting mechanism 1 and the nozzle mechanism 3 to ensure a stable connection between the two. The tensioning mechanism 5 includes a tensioning plate 501, a guide rod 502, a tensioning block 503, a tensioning motor 504 and a tensioning screw 505. The tensioning plate 501 is located above the sliding plate 401 and is fixed to the frame by bolts. The guide rod 502 is vertically arranged between the tensioning plate 501 and the sliding plate 401, and the tensioning block 503 slides thereon. The tensioning motor 504 is installed on the tensioning plate 501, and its transmission end is connected to the tensioning screw 505, and the tensioning screw 505 passes through the tensioning plate 501 and is rotationally connected to the sliding plate 401. The tensioning block 503 is connected to the tensioning screw 505 in a spiral transmission manner, and the rotation of the tensioning screw 505 is controlled by the motor, thereby pushing the tensioning block 503 to move up and down. The tension block 503 is provided with a lifting portion 506 , and the lifting portion 506 can be placed in a tensioning groove 507 on the sliding block 403 to achieve locking and releasing of the nozzle mechanism 3 .

[0042] The specific working mode of the tensioning mechanism 5 is as follows: when the nozzle needs to be replaced, the tensioning motor 504 is started to drive the tensioning screw 505 to rotate, so that the tensioning block 503 moves upward. The lifting part 506 of the tensioning block 503 gradually disengages from the tensioning groove 507 on the sliding block 403, and the nozzle mechanism 3 is unlocked. At this time, the nozzle mechanism 3 can move freely. After the replacement is completed, the tensioning motor 504 is started again, and the tensioning screw 505 is rotated in the opposite direction, so that the tensioning block 503 re-locks the nozzle mechanism 3 to ensure its stable connection. This design not only improves the working efficiency and stability of the equipment, but also effectively prevents the liquid leakage problem that may occur during the filling process.

[0043] When used specifically, a plurality of nozzle mechanisms 3 with filling nozzles 303 of different models and specifications can be evenly arranged on the circulating guide rail 201. The number of each nozzle mechanism 3 is the same as the number of the connecting mechanisms 1. Multiple rows of connecting mechanisms 1 can be arranged simultaneously according to the shape of the circulating track, corresponding to multiple conveyor belts of the filling machine for simultaneous multi-station filling. The implementation principle of the quick-change filling machine nozzle in the embodiment of the present application is as follows: through the coordinated action of the connecting mechanism 1, the feeding mechanism 2, the nozzle mechanism 3, the sliding mechanism 4 and the tensioning mechanism 5, the quick change and precise positioning of the nozzle are achieved. This design not only improves production efficiency, but also reduces labor costs, and is particularly suitable for production lines that require frequent product changes. Compared with the traditional fixed nozzle design, the nozzle of the present invention has a fast replacement speed and is easy to operate, which effectively solves the time-consuming and labor-intensive problems existing in the traditional nozzle replacement.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A filling machine nozzle capable of rapid replacement, characterized in that: include Connecting mechanisms (1), wherein a plurality of connecting mechanisms (1) are arranged on an external filling machine, and the connecting mechanisms (1) are used to connect to the external filling machine; A feeding mechanism (2), wherein the feeding mechanism (2) is arranged on a frame of an external filling machine; A nozzle mechanism (3), wherein a plurality of nozzle mechanisms (3) are arranged on the feeding mechanism (2), wherein the nozzle mechanism (3) comprises a nozzle tube (301) arranged just below the connecting mechanism (1), a sealing assembly (302) being arranged at one end of the nozzle tube (301) pointing to the connecting mechanism (1), the nozzle tube (301) being capable of being connected to the connecting mechanism (1), a filling nozzle (303) being arranged below the nozzle tube (301), and the filling nozzle (303) being provided with a plurality of sizes; A sliding mechanism (4), the sliding mechanism (4) being used to connect the nozzle mechanism (3) and the connecting mechanism (1); A tensioning mechanism (5), wherein the tensioning mechanism (5) is used to reinforce the connection between the connecting mechanism (1) and the nozzle mechanism (3).

2. The quick-change filling machine nozzle according to claim 1, characterized in that: The connection mechanism (1) comprises a support plate (101), a communication port (102) is arranged on the support plate (101), the communication port (102) is connected to an external filling machine, a material guide pipe (103) is arranged below the support plate (101), the material guide pipe (103) is connected to the communication port (102), and the sealing assembly (302) can be arranged below the material guide pipe (103).

3. The quick-change filling machine nozzle according to claim 2, characterized in that: The sealing assembly (302) includes a sealing ring (3021) arranged at the top end of the nozzle tube (301), and a sealing protrusion (3022) is arranged on the sealing ring (3021). It also includes a sealing groove (3023) arranged at the bottom end of the guide tube (103), and the sealing protrusion (3022) can be arranged in the sealing groove (3023).

4. The quick-change filling machine nozzle according to claim 3, characterized in that: The sliding mechanism (4) includes a sliding plate (401) arranged on the outer wall of the material guide tube (103), a sliding rail (402) is arranged below the sliding plate (401), and also includes a sliding block (403) arranged on the outer wall of the nozzle tube (301), a sliding groove (404) is arranged on the sliding block (403), and the sliding groove (404) is sleeved on the sliding rail (402) and is slidably connected to the sliding rail (402), and the sliding block (403) can generate relative movement with the sliding rail (402).

5. The quick-change filling machine nozzle according to claim 4, characterized in that: A guide slope (405) is provided on one side of the sliding rail (402).

6. The quick-change filling machine nozzle according to claim 5, characterized in that: The feeding mechanism (2) comprises two groups of circulating guide rails (201) arranged on an external filling machine frame, one side of the circulating guide rails (201) is provided with a driving sprocket (202), and the other side is provided with a driven sprocket (203), one side of the circulating guide rails (201) is provided with a connecting chain (204), the driving sprocket (202) is meshed with the connecting chain (204), the driven sprocket (203) is meshed with the connecting chain (204), a plurality of connecting seats (205) are provided on the connecting chain (204), the connecting seats (205) are connected to the sliding block (403), and also comprises a sliding assembly (206), and the nozzle mechanism (3) is slidably connected to the circulating guide rail (201) via the sliding assembly (206).

7. The quick-change filling machine nozzle according to claim 6, characterized in that: The sliding assembly (206) comprises two groups of connecting rods (2061) arranged below the sliding block (403), the bottom ends of the connecting rods (2061) point toward the circulating guide rail (201), and sliding wheels (2062) are arranged on the connecting rods (2061).

8. The quick-change filling machine nozzle according to claim 7, characterized in that: The tensioning mechanism (5) comprises a tensioning plate (501) arranged above the sliding plate (401), a guide rod (502) is arranged between the tensioning plate (501) and the sliding plate (401), a tensioning block (503) is slidably connected to the guide rod (502), a tensioning motor (504) is arranged on the tensioning plate (501), a transmission end of the tensioning motor (504) is connected to a tensioning screw rod (505), and the tensioning The screw rod (505) passes through the tensioning plate (501), the tensioning screw rod (505) is rotationally connected to the sliding plate (401), the tensioning block (503) is spirally connected to the tensioning screw rod (505), a lifting portion (506) is connected to the tensioning block (503), and also includes a tensioning groove (507) arranged on the sliding block (403), and the lifting portion (506) can be placed in the tensioning groove (507).

9. The quick-change filling machine nozzle according to claim 8, characterized in that: An anti-friction ring (304) is provided at the bottom of the filling nozzle (303).

10. The quick-change filling machine nozzle according to claim 9, characterized in that: A guide tube (305) is provided between the nozzle tube (301) and the filling nozzle (303).

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