A cleaning device for a filling machine and its usage method

Abstract

This invention discloses a cleaning device and method for filling machines, relating to the field of filling machine cleaning technology. It includes a mounting frame with a driving assembly. The driving end of the driving assembly is connected to a rotating shaft. An outer movable frame is sleeved on the rotating shaft. The outer movable frame is a hollow boss structure with a through window (window 1) on its surface. The outer diameter of the outer movable frame fits against the inner wall of the feed hopper. An inner support body is provided inside the outer movable frame. The inner support body is a solid body that matches the hollow structure of the outer movable frame. A second window (window 2) of the same specification is provided on the inner support body corresponding to each of the first windows. A connecting sleeve is provided on the inner support body in conjunction with the rotating shaft. An electromagnetic module is laid on the inner surface of the outer movable frame, and an adsorption module is provided on the outer surface of the inner support body corresponding to the electromagnetic module. This invention improves the cleaning quality of paste filling machines.

Description

Technical Field

[0001] This invention relates to the field of filling machine cleaning technology, specifically to a cleaning device and method for using a filling machine. Background Technology

[0002] A filling machine is a device used to fill liquids, pastes, powders, and other materials into packaging containers according to a set capacity or weight. It is widely used in the food, beverage, pharmaceutical, chemical, and cosmetic industries. Filling machines mainly include three types: liquid filling machines, paste filling machines, and powder filling machines. Liquid filling machines are used for filling low-viscosity liquids, paste filling machines are used for filling paste-like materials with a certain viscosity, and powder filling machines are used for filling powdered materials.

[0003] The filling method varies depending on the type of material. Unlike liquid filling machines that can use the material's own gravity for feeding, paste filling machines usually use piston or screw filling principles, which use the reciprocating motion of the piston or screw to squeeze the paste into the container.

[0004] Cleaning filling machines is crucial for ensuring proper equipment operation and product quality. Generally, liquid filling machines are cleaned by adding water, warm water (with the addition of laundry detergent, disinfectant, etc.), soapy water, alcohol, or cleaning solution to the hopper. The machine is then started to draw in the cleaning liquid from the hopper, and the discharge speed is increased to dissolve any remaining material and quickly flush it away. However, paste filling machines, due to the viscosity of the material, cannot be completely cleaned with water alone, requiring disassembly of components, which increases the workload for employees. Summary of the Invention

[0005] The purpose of this invention is to provide a cleaning device and method for use in a filling machine to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a cleaning device and method for a filling machine, comprising a paste filling machine, a feeding hopper, and a cleaning mechanism. The feeding hopper is fixed at the feeding port of the paste filling machine. The cleaning mechanism is located on one side of the feeding hopper. The cleaning mechanism includes a mounting frame, on which a driving component is mounted. The driving end of the driving component is connected to a rotating shaft. An outer movable frame is sleeved on the rotating shaft. The outer movable frame is a hollow boss structure. A through window 1 is opened on the surface of the outer movable frame. The outer diameter of the outer movable frame fits against the inner wall of the feeding hopper. An inner support body is provided inside the outer movable frame. The inner support body is a solid body that matches the hollow structure of the outer movable frame. A window 2 of the same specification is opened on the inner support body corresponding to each window 1. A connecting sleeve is provided on the inner support body in conjunction with the rotating shaft. An electromagnetic module is laid on the inner surface of the outer movable frame. An adsorption module is provided on the outer surface of the inner support body corresponding to the electromagnetic module.

[0007] According to the above technical solution, the feed hopper includes a cylindrical barrel and a conical barrel. The conical barrel is used to connect the cylindrical barrel and the paste filling machine. The outer movable frame is fitted with the inner wall of the cylindrical barrel. Several scrapers are arranged around the bottom of the rotating shaft. The scrapers are fitted with the inner wall of the conical barrel. The scrapers are connected to telescopic rods. A spring is connected between the telescopic rods and the rotating shaft. The rotating shaft is fitted with sleeve rods connected to each telescopic rod. The sleeve rods are sleeved on the outside of the telescopic rods and slide with them.

[0008] According to the above technical solution, the drive assembly includes a longitudinal screw, a motor, and a lifting platform. The longitudinal screw is rotatably mounted on the mounting frame. The motor is fixed on the mounting frame and connected to the longitudinal screw. The lifting platform is mounted on the longitudinal screw. Several guide rods are passed through the lifting platform. A motor is fixed on the lifting platform. The motor is connected to the rotating shaft through a pulley.

[0009] According to the above technical solution, a spraying component is installed on the mounting frame, and the spraying component is configured as two sets of semi-circular structures mounted on the upper side of the feed hopper.

[0010] According to the above technical solution, the spraying assembly includes a rotating plate, which is rotatably mounted on a mounting frame. The rotating plate is connected to a motor and an arc plate. Several nozzle groups are spaced apart on the lower side of the arc plate, and a vision inspection module is installed on the rotating plate.

[0011] According to the above technical solution, the nozzle assembly includes two connecting plates. A rotating rod is rotatably mounted on the connecting plates, and a rocker arm is mounted on the rotating rod. Torsion springs are connected between the two sides of the rocker arm and the connecting plates. A nozzle is mounted on the inward end of the rocker arm.

[0012] According to the above technical solution, an arc-shaped groove is opened on the arc plate, a cover plate is fixed on the arc-shaped groove, a cylinder is fixed on the cover plate, the driving end of the cylinder extends through the arc-shaped groove to the lower side of the arc plate, the driving end of the cylinder is connected to a pressure plate, the pressure plate is located below the outer end of each rocker, and several guide rods are provided on the pressure plate, the guide rods slide with the cover plate.

[0013] According to the above technical solution, the two ends of the rotating rod extend out of the connecting plate and are respectively fitted with gear one. Gear one is fitted with gear two. Gear two is connected to a drive rod. The drive rod is rotatably mounted on the connecting plate and a nozzle two is mounted on the drive rod.

[0014] According to the above technical solution, the paste filling machine includes a steering cavity with three openings, which are respectively connected to an extrusion port, a feed hopper and a piston cylinder. A three-way valve is rotatably installed inside the steering cavity, and one side shaft of the three-way valve extends out of the steering cavity and is connected to a cylinder.

[0015] According to the above technical solution, the cleaning mechanism also includes a detection box for detecting the state of the cleaning water. The detection box is equipped with a filter layer, which is connected to a pressure sensor to detect whether large impurities are mixed in the cleaning water. A turbidity meter is installed on the lower side of the filter layer to detect the turbidity of the cleaning water.

[0016] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: By configuring an outer movable frame and an inner support body, and changing the deflection and connection states between them, this invention can achieve material stirring in the non-cleaning state. Before the material extrusion ends, it squeezes the remaining material downwards, assisting in material discharge while simultaneously performing initial cleaning of the inner wall of the feed hopper, thus improving material utilization. By incorporating a spraying component, the spraying angle can be changed, allowing for periodic cleaning in conjunction with the deflection states between the outer movable frame and the inner support body. Combined with a testing box to evaluate the cleaning water, this improves cleaning quality. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the cleaning device of the present invention;

[0019] Figure 2 This is a partial structural schematic diagram of the cleaning device of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection structure of the rotating shaft of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the outer movable frame and the inner support body of the present invention;

[0022] Figure 5 This is a partial schematic diagram of the staggered state of window one and window two in this invention;

[0023] Figure 6 This is a cross-sectional view of the sleeve rod of the present invention;

[0024] Figure 7 This is a schematic diagram of the spraying assembly of the present invention;

[0025] Figure 8 This is a partial schematic diagram of the spraying component of the present invention;

[0026] Figure 9 This is a schematic diagram of the nozzle assembly of the present invention;

[0027] Figure 10 This is a schematic diagram of the paste filling machine of the present invention.

[0028] In the diagram: 1. Paste filling machine; 11. Steering chamber; 12. Extrusion port; 13. Piston cylinder; 14. Three-way valve; 15. Cylinder 2; 2. Feed hopper; 21. Round barrel; 22. Conical barrel; 3. Mounting frame; 4. Drive assembly; 41. Longitudinal screw; 42. Motor 1; 43. Lifting platform; 44. Guide rod 1; 45. Motor 2; 5. Rotating shaft; 51. External movable frame; 511. Window 1; 512. Electromagnetic module; 52. Inner support body; 521. Window 2; 522. Connecting sleeve; 523. Adsorption module; 5 3. Scraper; 54. Telescopic rod; 55. Spring; 56. Sleeve rod; 6. Spray assembly; 61. Rotating plate; 62. Motor three; 63. Arc plate; 64. Nozzle assembly; 641. Connecting plate; 642. Rotating rod; 643. Rocker; 644. Torsion spring; 645. Nozzle one; 646. Gear one; 647. Gear two; 648. Drive rod; 649. Nozzle two; 65. Cover plate; 66. Cylinder one; 67. Pressure plate; 68. Guide rod two; 7. Detection box; 71. Filter layer; 72. Turbidity meter; 8. Pump body. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-10 This invention provides a technical solution: a cleaning device and method for a filling machine, comprising a paste filling machine 1, a feeding hopper 2, and a cleaning mechanism. The feeding hopper 2 is fixed at the feeding port of the paste filling machine 1. The cleaning mechanism is disposed on one side of the feeding hopper 2. The cleaning mechanism includes a mounting frame 3, on which a driving assembly 4 is disposed. The driving end of the driving assembly 4 is connected to a rotating shaft 5. An outer movable frame 51 is sleeved on the rotating shaft 5. The outer movable frame 51 is configured as a hollow boss structure, and a through window is opened on the surface of the outer movable frame 51. 511, the outer diameter of the outer movable frame 51 fits against the inner wall of the feed bin 2. An inner support body 52 is provided inside the outer movable frame 51. The inner support body 52 is a solid body that matches the hollow structure of the outer movable frame 51. The inner support body 52 has windows 521 of the same specifications corresponding to each window 511. The inner support body 52 is equipped with a connecting sleeve 522 in conjunction with the rotating shaft 5. An electromagnetic module 512 is laid on the inner surface of the outer movable frame 51. An adsorption module 523 is provided on the outer surface of the inner support body 52 corresponding to the electromagnetic module 512.

[0031] The following is a supplementary explanation based on the above structure: (e.g.) Figures 3-5As shown, the frictional force between the outer movable frame 51 and the inner wall of the feed bin 2 is set to be greater than the frictional force between the outer movable frame 51 and the inner support body 52. ​​The inner support body 52 is connected to the rotating shaft 5, and the outer movable frame 51 is supported by the inner support body 52. ​​In one case, windows 1 511 and 2 521 are overlapping, and the outer movable frame 51 and the inner support body 52 are vertically connected. When the electromagnetic module 512 is energized, the adsorption module 523 is tightly attached to the electromagnetic module 512, and the outer movable frame 51 and the inner support body 52 are connected to each other as a whole. The outer movable frame 51 moves with the inner support body 52. ​​In another case, the electromagnetic module 512 is de-energized, the outer movable frame 51 and the inner support body 52 are separated, and when the inner support body 52 rotates, the outer movable frame 51 is relatively stationary due to the resistance of the inner wall of the feed bin 2. When windows 1 511 and 2 521 are misaligned, the outer movable frame 51 and the inner support body 52 are not vertically connected. When the electromagnetic module 512 is powered on, the surface of the connecting sleeve 522 will adhere to the inner wall of the outer movable frame 51, and the outer movable frame 51 will be fixedly connected to the inner support body 52.

[0032] like Figure 2 , Figure 6 As shown, the feed hopper 2 includes a cylindrical barrel 21 and a conical barrel 22. The conical barrel 22 is used to connect the cylindrical barrel 21 and the paste filling machine 1. The outer movable frame 51 is fitted with the inner wall of the cylindrical barrel 21. Several scrapers 53 are arranged around the bottom of the rotating shaft 5. The scrapers 53 are fitted with the inner wall of the conical barrel 22. The scrapers 53 are connected to telescopic rods 54. A spring 55 is connected between the telescopic rods 54 and the rotating shaft 5. The rotating shaft 5 is fitted with sleeve rods 56 for each telescopic rod 54. The sleeve rods 56 are sleeved on the outside of the telescopic rods 54 and slide with them.

[0033] In actual operation, the scraper 53 can adaptively adjust to the changes in the inner diameter of the cone 22. When the scraper 53 moves downward, the inner diameter of the cone 22 gradually decreases, and the scraper 53 retracts into the sleeve 56 through the compression spring 55 via the telescopic rod 54. When the scraper 53 moves upward, the inner diameter of the cone 22 gradually increases, and the scraper 53 gradually extends out of the sleeve 56 under the elastic force of the spring 55.

[0034] like Figure 2 As shown, the drive assembly 4 includes a longitudinal screw 41, a motor 42, and a lifting platform 43. The longitudinal screw 41 is rotatably mounted on the mounting frame 3. The motor 42 is fixed on the mounting frame 3 and connected to the longitudinal screw 41. The lifting platform 43 is mounted on the longitudinal screw 41. Several guide rods 44 are passed through the lifting platform 43. A second motor 45 is fixed on the lifting platform 43. The second motor 45 is connected to the rotating shaft 5 through a pulley.

[0035] In actual operation, motor 42 controls the longitudinal screw 41 to rotate, causing the lifting platform 43 to move up and down along the guide rod 44, thereby controlling the rotating shaft 5 to move up and down. Motor 45 controls the rotating shaft 5 to rotate through the pulley.

[0036] like Figure 7 As shown, a spraying assembly 6 is installed on the mounting frame 3. The spraying assembly 6 is configured as two sets of semi-circular structures mounted on the upper side of the feed hopper 2.

[0037] The spraying assembly 6 includes a rotating plate 61, which is rotatably mounted on the mounting frame 3. The rotating plate 61 is connected to a motor 62 and an arc plate 63. Several nozzle groups 64 are spaced apart on the lower side of the arc plate 63. A vision inspection module is installed on the rotating plate 61.

[0038] Furthermore, such as Figure 9 As shown, the nozzle assembly 64 includes two connecting plates 641. A rotating rod 642 is rotatably mounted on the connecting plate 641. A rocker plate 643 is mounted on the rotating rod 642. Torsion springs 644 are connected between the two sides of the rocker plate 643 and the connecting plate 641. A nozzle 645 is mounted on the inner end of the rocker plate 643.

[0039] Furthermore, such as Figure 8 As shown, an arc-shaped groove is provided on the arc plate 63, and a cover plate 65 is fixed on the arc-shaped groove. A cylinder 66 is fixed on the cover plate 65. The driving end of the cylinder 66 extends through the arc-shaped groove to the lower side of the arc plate 63. The driving end of the cylinder 66 is connected to a pressure plate 67. The pressure plate 67 is located below the outer end of each rocker 643. Several guide rods 68 are provided on the pressure plate 67. The guide rods 68 slide in cooperation with the cover plate 65.

[0040] It should be further explained that: In the initial state, the rocker plate 643 is tilted upwards at the inward end by the torsion spring 644. At this time, the nozzle of the nozzle 645 faces inwards, and the nozzle 645 is connected to a liquid input pipeline. When the cylinder 66 controls the pressure plate 67 to move upwards, the pressure plate 67 presses the rocker plate 643, causing the rocker plate 643 to drive the rotating rod 642 to rotate downwards. The nozzle of the nozzle 645 changes from inwards to outwards. When the cylinder 66 controls the pressure plate 67 to move downwards, the pressure plate 67 releases the pressure on the rocker plate 643, and the rocker plate 643 is reset by the torsion spring 644.

[0041] In one embodiment, optionally, the two ends of the rotating rod 642 extend out of the connecting plate 641 and are respectively fitted with a first gear 646. The first gear 646 is fitted with a second gear 647. The second gear 647 is connected to a drive rod 648. The drive rod 648 is rotatably mounted on the connecting plate 641, and a second nozzle 649 is mounted on the drive rod 648.

[0042] In the initial state, the nozzle direction of nozzle 2 649 is facing outward. When the rotating rod 642 drives gear 1 646 to rotate in the forward direction, gear 2 647 simultaneously drives the drive rod 648 to rotate in the reverse direction, so that the nozzle direction of nozzle 2 649 changes from the outside to the inside, and nozzle 1 645 and nozzle 2 649 are staggered.

[0043] like Figure 10 As shown, the paste filling machine 1 includes a steering cavity 11, which has three openings connected to an extrusion port 12, a feed hopper 2, and a piston cylinder 13, respectively. A three-way valve 14 is rotatably installed inside the steering cavity 11. One side shaft of the three-way valve 14 extends out of the steering cavity 11 and is connected to a cylinder 2 15.

[0044] In actual operation, the three-way valve 14 is provided with three openings. When they correspond to the three openings of the turning chamber 11 in sequence, the three directions are connected to each other. At this time, the piston cylinder 13 draws the material in the feed bin 2 through the suction movement. Then, the three-way valve 14 is controlled to rotate by the cylinder 2 15 so that one of the openings faces downward. At this time, the passage between the turning chamber 11 and the feed bin 2 is closed, and a passage is formed between the turning chamber 11, the extrusion port 12, and the piston cylinder 13. At this time, the piston cylinder 13 pushes the material towards the extrusion port 12, and finally discharges the material through the extrusion port 12.

[0045] Preferably, the cleaning mechanism also includes a detection box 7 for detecting the state of the cleaning water. The detection box 7 is equipped with a filter layer 71, which is connected to a pressure sensor to detect whether large impurities are mixed in the cleaning water. A turbidity meter 72 is installed on the lower side of the filter layer 71 to detect the turbidity of the cleaning water.

[0046] It should be noted that when the testing box 7 is used to recycle and test the cleaning water, a pump body 8 is installed on the pipeline connecting it to the feed hopper 2 or the extrusion port 12.

[0047] The specific implementation method is as follows:

[0048] In non-cleaning mode, the cleaning mechanism can be used to agitate the materials inside the feed hopper 2. At this time, windows 511 and 521 are overlapping, and the outer movable frame 51 and the inner support 52 are vertically connected and tightly linked. The rotation of the rotating shaft 5 synchronously drives the outer movable frame 51 and the inner support 52 to rotate, and the drive component 4 controls the rotating shaft 5 to reciprocate up and down at a certain distance, allowing the material to flow vertically through windows 511 and 521.

[0049] In cleaning mode, before the material extrusion ends, the rotating shaft 5 controls the outer movable frame 51 and the inner support body 52 to move upwards to the upper side of the feed hopper 2 and maintains rotation. This allows the material on the surface of the outer movable frame 51 to enter the lower space through windows 1 511 and 2 521. The vision detection module detects the material coverage on the surface of the outer movable frame 51 and increases the instantaneous acceleration by intermittently increasing the rotation speed of the rotating shaft 5, making it easier for the material on the surface of the outer movable frame 51 to fall off. When the attached material is reduced to a certain extent, the rotating shaft 5 stops rotating, the electromagnetic module 512 is de-energized, the outer movable frame 51 separates from the inner support body 52, and the rotating shaft 5 drives the inner support body 52 to rotate until windows 1 511 and 2 521 are staggered, separating the upper and lower parts of the outer movable frame 51. The rotating shaft 5 controls the outer movable frame 51 to move downwards, compressing the remaining material for discharge. During the downward movement, the edge of the outer movable frame 51 scrapes off the material on the inner wall of the feed hopper 2, improving the completeness of material discharge and also performing a preliminary cleaning of the inner wall of the feed hopper 2. When the outer movable frame 51 moves down to the bottom, it is located between the cylindrical barrel 21 and the conical barrel 22. The material on the inner wall of the cylindrical barrel 21 has been scraped off. The scraper 53 is located inside the conical barrel 22. The rotating shaft 5 controls the original position to move up and deflect at a certain angle before moving down, so that the scraper 53 can scrape the surface of the conical barrel 22 in a circular manner.

[0050] When the paste filling machine 1 can no longer extrude material, it enters the next cleaning process. The rotating shaft 5 controls the inner support 52 to rotate, causing windows 1 511 and 2 521 to overlap. The outer movable frame 51 connects to the inner support 52, and the rotating shaft 5 pulls the outer movable frame 51 upwards to the underside of the spray assembly 6. During this process, the outer movable frame 51 scrapes the inner wall of the cylinder 21 again, and the scraped material accumulates on the surface of the outer movable frame 51. The spray nozzle assembly 64 starts, spraying cleaning water onto the surface of the outer movable frame 51. The rotating shaft 5 controls the outer movable frame 51 to rotate slowly, allowing the surface material to be washed away by the cleaning water into the lower space of the outer movable frame 51. The visual inspection module confirms the surface condition of the outer movable frame 51 and the surface condition of the gap between windows 1 511 and 2 521, ensuring that there is no visible material adhering to the surface. After the upper surface of the outer movable frame 51 is cleaned, windows 1 511 and 2 521 switch to a staggered state. The rotating shaft 5 moves downward and remains rotating, allowing the lower cleaning water to fully contact the inner wall of the feed hopper 2, the lower surface of the outer movable frame 51, and the scraper 53. After a period of time, the cleaning water is pumped by the pump body 8 into the testing tank 7 for testing to determine the internal state of the cleaning water and thus confirm whether it is clean. The above process is repeated until the cleaning water meets the standard.

[0051] Furthermore, during a cleaning cycle, the cleaning water will contain materials of varying sizes. Large, lumpy materials are screened out through the filter layer 71. The pressure value detected by the pressure sensor determines whether there is material adhering to the upper surface of the filter layer 71. If the pressure sensor detects large-volume material on the upper surface of the filter layer 71, it is determined that the cleaning is incomplete, and the next cleaning cycle begins.

[0052] Furthermore, if no large volume material is detected on the upper side of filter layer 71 during a cleaning cycle, the turbidity of the cleaning water is measured using turbidity meter 72 until the cleaning standard is met.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cleaning device for a filling machine, comprising a paste filling machine (1), a feeding hopper (2), and a cleaning mechanism, characterized in that, The feeding hopper (2) is fixed at the inlet of the paste filling machine (1). The cleaning mechanism is located on one side of the feeding hopper (2). The cleaning mechanism includes a mounting frame (3). A drive assembly (4) is provided on the mounting frame (3). A rotating shaft (5) is connected to the drive end of the drive assembly (4). An outer movable frame (51) is sleeved on the rotating shaft (5). The outer movable frame (51) is a hollow boss structure. A window (511) is opened on the surface of the outer movable frame (51) that runs vertically through it. The outer diameter of the outer movable frame (51) is flush with the inner wall of the feeding hopper (2). The outer movable frame (51) is provided with an inner support body (52). The inner support body (52) is a solid body that matches the hollow structure of the outer movable frame (51). The inner support body (52) has a window (521) of the same specification corresponding to each of the first window (511). The inner support body (52) is provided with a connecting sleeve (522) in cooperation with the rotating shaft (5). The inner surface of the outer movable frame (51) is covered with an electromagnetic module (512). The outer surface of the inner support body (52) is provided with an adsorption module (523) corresponding to the electromagnetic module (512). When window one (511) and window two (521) are in an overlapping state, the outer movable frame (51) and the inner support (52) are connected vertically; when window one (511) and window two (521) are staggered, the outer movable frame (51) and the inner support (52) are not connected vertically. The feeding hopper (2) includes a cylindrical barrel (21) and a conical barrel (22). The conical barrel (22) is used to connect the cylindrical barrel (21) and the paste filling machine (1). The outer movable frame (51) is fitted with the inner wall of the cylindrical barrel (21). Several scrapers (53) are arranged around the bottom of the rotating shaft (5). The scrapers (53) are fitted with the inner wall of the conical barrel (22). The scrapers (53) are connected to telescopic rods (54). A spring (55) is connected between the telescopic rods (54) and the rotating shaft (5). The rotating shaft (5) is fitted with sleeve rods (56) for each telescopic rod (54). The sleeve rods (56) are sleeved on the outside of the telescopic rods (54) and slide with them. The drive assembly (4) includes a longitudinal screw (41), a motor (42), and a lifting platform (43). The longitudinal screw (41) is rotatably mounted on the mounting frame (3). The motor (42) is fixed on the mounting frame (3) and connected to the longitudinal screw (41). The lifting platform (43) is mounted on the longitudinal screw (41). Several guide rods (44) are passed through the lifting platform (43). A motor (45) is fixed on the lifting platform (43). The motor (45) is connected to the rotating shaft (5) through a pulley. The mounting frame (3) is equipped with a spraying assembly (6), which is configured as two sets of semi-circular structures mounted on the upper side of the feed hopper (2); The spraying assembly (6) includes a rotating plate (61), which is rotatably mounted on the mounting frame (3). The rotating plate (61) is connected to a motor (62), and the rotating plate (61) is connected to an arc plate (63). Several nozzle groups (64) are spaced apart on the lower side of the arc plate (63). A visual inspection module is provided on the rotating plate (61). The nozzle assembly (64) includes two connecting plates (641). A rotating rod (642) is rotatably mounted on the connecting plate (641). A rocker plate (643) is mounted on the rotating rod (642). Torsion springs (644) are connected between the rocker plate (643) and the connecting plate (641) on both sides. A nozzle (645) is mounted on the inward end of the rocker plate (643).

2. The cleaning device for a filling machine according to claim 1, characterized in that, An arc-shaped groove is provided on the arc plate (63), and a cover plate (65) is fixed on the arc-shaped groove. A cylinder (66) is fixed on the cover plate (65). The driving end of the cylinder (66) extends through the arc-shaped groove to the lower side of the arc plate (63). The driving end of the cylinder (66) is connected to a pressure plate (67). The pressure plate (67) is located below the outer end of each rocker (643). Several guide rods (68) are provided on the pressure plate (67). The guide rods (68) slide in cooperation with the cover plate (65).

3. The cleaning device for a filling machine according to claim 2, characterized in that, The rotating rod (642) extends out of the connecting plate (641) at both ends and is respectively fitted with a gear one (646). The gear one (646) is fitted with a gear two (647). The gear two (647) is connected to a drive rod (648). The drive rod (648) is rotatably mounted on the connecting plate (641). The drive rod (648) is equipped with a nozzle two (649).

4. A cleaning device for a filling machine according to claim 3, characterized in that, The cleaning mechanism includes a detection box (7) for detecting the state of the cleaning water. The detection box (7) is equipped with a filter layer (71). The filter layer (71) is connected to a pressure sensor for detecting whether large-volume impurities are mixed in the cleaning water. A turbidity meter (72) is installed on the lower side of the filter layer (71) for detecting the turbidity of the cleaning water.

5. A method of using a cleaning device for a filling machine, applicable to the cleaning device for a filling machine as described in claim 4, characterized in that, Before the material extrusion ends, the rotating shaft (5) controls the outer movable frame (51) and the inner support (52) to move up to the upper side of the feed hopper (2) and keep rotating, so that the material on the surface of the outer movable frame (51) enters the lower space through window one (511) and window two (521). The vision detection module detects the material coverage status on the surface of the outer movable frame (51) and increases the instantaneous acceleration by intermittently increasing the rotation speed of the rotating shaft (5), making it easier for the material on the surface of the outer movable frame (51) to fall off. When the attached material is reduced to a certain extent, the rotating shaft (5) stops rotating, and window one (511) and window two (521) switch to a staggered state. The rotating shaft (5) controls the outer movable frame (51) to move down, pressing the remaining material out. During the downward movement, the edge of the outer movable frame (51) scrapes off the material on the inner wall of the feed bin (2). When the outer movable frame (51) moves down to the bottom, it is located between the cylindrical barrel (21) and the conical barrel (22). The material on the inner wall of the cylindrical barrel (21) has been scraped off. The scraper (53) is located inside the conical barrel (22). The rotating shaft (5) controls the original position to move up and deflect at a certain angle and then move down, so that the scraper (53) can scrape the surface of the conical barrel (22) in a circumferential manner.

6. The method of using the cleaning device for a filling machine according to claim 5, characterized in that, When the paste filling machine (1) is unable to squeeze out the material, it enters the next cleaning process; Window 1 (511) and Window 2 (521) are switched to the overlapping state, the outer movable frame (51) is connected to the inner support (52), and the rotating shaft (5) pulls the outer movable frame (51) up to the underside of the spraying assembly (6); Scrape off the material accumulated on the surface of the outer movable frame (51), start the nozzle assembly (64) to spray cleaning water onto the surface of the outer movable frame (51), and control the outer movable frame (51) to rotate slowly so that the surface material is washed by the cleaning water to the lower space of the outer movable frame (51). The visual inspection module confirms the surface condition of the external movable frame (51) and the surface condition of the gap between window one (511) and window two (521) to ensure that there is no visible material adhering to the surface; After the upper surface of the external movable frame (51) is cleaned, window one (511) and window two (521) are switched to a staggered state; The rotating shaft (5) moves down and remains rotating, so that the lower cleaning water can fully contact the inner wall of the feed hopper (2), the lower surface of the outer movable frame (51), and the scraper (53). After a period of time, the cleaning water is pumped into the test box (7) by the pump body (8) for testing to determine the internal state of the cleaning water and thus confirm whether it is clean. Repeat the above steps until the cleaning water meets the standard.

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