A follow-up nozzle bag mouth cleaning device and cleaning method

Abstract

The present invention discloses a follow-up type nozzle bag mouth cleaning device and cleaning method, which relates to the field of cleaning technology. The technical scheme is as follows: it includes a bag conveying mechanism, which can clamp the nozzle bag to be rinsed and convey it; a flushing mechanism, which is located above the bag conveying mechanism and is provided with one corresponding to each nozzle bag to be rinsed; each flushing mechanism is provided with a flushing tube group, and each of the flushing tube groups is connected to the liquid supply pipeline of the flushing liquid; a follow-up mechanism, which is linked with the flushing mechanism and can drive the flushing mechanism to follow the movement of the nozzle bag on the bag conveying mechanism. The beneficial effect of the present invention is that the scheme uses the flushing mechanism to flush the position of the nozzle bag mouth, and during the flushing process, the follow-up mechanism makes the flushing mechanism and the nozzle bag move synchronously. In this way, the flushing process of the nozzle bag can be extended, so that the bag mouth can be cleaned more thoroughly.

Description

Technical Field

[0001] The present invention relates to the field of cleaning technology, in particular to a follow-up nozzle bag mouth cleaning device and a cleaning method. Background Art

[0002] The spout bag is a very common packaging method. The bag body is usually made of flexible material, and the mouth of the bag body is made of plastic material with a lidded spout. This packaging method is more convenient for people to use. Compared with packaging with plastic bags alone, it is more hygienic and convenient to use. This packaging method is common in ketchup, juice, milk, soy milk and other materials.

[0003] During packaging, the material is filled into the spout bag through the filling head. Due to the characteristics of the material, there is a possibility that the material will drip onto the outside of the bag spout, or the material will generate foam and overflow from the bag spout. If the lid is screwed directly without rinsing off these residues, these residues are very likely to deteriorate between the lid and the bag spout, directly affecting the user's consumption.

[0004] To solve the above problems, a water spray pipe is currently installed at a fixed position on the packaging equipment frame. When the nozzle bag passes through the water spray pipe, the water sprayed from the water spray pipe is used for simple flushing. However, the cleaning effect of this flushing method is not ideal. According to research, it is mainly caused by the following reasons.

[0005] 1. Because the nozzle of the bag can only be rinsed when it passes through the water pipe, when high production capacity needs to be ensured, the contact time between the nozzle bag and the water pipe is very short. If the water pressure is increased, it will lead to water waste.

[0006] Second, it is necessary to avoid the problem of water flowing into the nozzle bag, so the water flow force should not be too strong. This also makes it impossible to enhance the cleaning effect by increasing the water pressure in the above problem. Moreover, according to different product requirements, the flushing liquid in some flushing links is not pure water, but a certain proportion of disinfectant and other materials needs to be added, which makes it even more necessary to control the flushing cost.

[0007] Third, the existing flushing device does not have a post-flushing cleaning function, which may cause the flushing liquid to remain at the bag mouth, and there is still a possibility of packaging quality problems at this position after the cap is screwed on. Summary of the invention

[0008] In view of one of the deficiencies of the prior art, the present invention provides a follow-up nozzle bag mouth cleaning device to solve the nozzle bag mouth cleaning problem in the nozzle bag packaging process.

[0009] To achieve the above object, the present invention provides the following technical solution: a follow-up nozzle bag mouth cleaning device, comprising:

[0010] The bag conveying mechanism can hold the nozzle bag to be rinsed and convey it;

[0011] A flushing mechanism is located above the bag conveying mechanism and is provided for each nozzle bag to be flushed; each flushing mechanism is provided with a flushing pipe group, and each of the flushing pipe groups is connected to a flushing liquid supply pipeline;

[0012] The following mechanism is linked with the flushing mechanism and can drive the flushing mechanism to follow the movement of the nozzle bag on the bag conveying mechanism.

[0013] Preferably, the bag conveying mechanism comprises:

[0014] The conveying plate has a card interface on its plate body corresponding to the bag mouth of the suction nozzle bag, and the bag mouth of the suction nozzle bag can be carded on the conveying plate;

[0015] The conveying drive mechanism is linked with the conveying plate and can drive the conveying plate to convey the nozzle bags thereon.

[0016] Preferably, the flushing mechanism further comprises:

[0017] A plugging component is located at the lower part of the flushing mechanism, the plugging component is arranged toward the card interface on the conveying disk, and the plugging component can extend into the bag mouth of the nozzle bag;

[0018] The flushing tube assembly comprises:

[0019] The flushing pipe has its outlet end arranged toward the peripheral side of the plugging component.

[0020] Preferably, a plurality of flushing pipes are provided, and outlet ends of the flushing pipes are evenly distributed circumferentially around the plugging component.

[0021] Preferably, the flushing mechanism further comprises:

[0022] The flushing body is connected to the blocking assembly and the flushing tube group; the flushing body and the following mechanism are linked, the following mechanism can drive the flushing body to move along the conveying path of the conveying disk, and the following mechanism can drive the flushing body to move toward or away from the bag mouth of the suction nozzle bag.

[0023] Preferably, the flushing body is provided with:

[0024] A liquid supply passage, one end of which is connected to a liquid supply source of the flushing liquid, and the other end of which is connected to the flushing pipe;

[0025] The air supply passage has one end connected to the flushing air supply source and the other end arranged toward the bag mouth.

[0026] Preferably, the flushing body is further provided with:

[0027] A nitrogen supply passage, one end of which is connected to a nitrogen supply source, and the other end of which is connected to the plugging component;

[0028] A nitrogen injection hole is provided on the blocking component corresponding to the nitrogen supply passage, and a gas outlet end of the nitrogen injection hole is opened toward the inside of the bag mouth of the nozzle bag.

[0029] Preferably, the blocking component comprises:

[0030] The plugging head is arranged at the bottom of the flushing body. The plugging head is a frustum-shaped structure, and its bottom end is a small-area end. The nitrogen injection hole is a through hole that vertically penetrates the plugging head.

[0031] Preferably, the air supply passage comprises:

[0032] The first air outlet is arranged on the peripheral side of the plugging head, and the air outlet direction of the first air outlet is vertically downward.

[0033] Preferably, the conveying disc is a disc; and the following mechanism comprises:

[0034] The rotating assembly can drive the flushing body to perform circular motion with the axis of the conveying disc as the axis center;

[0035] The lifting assembly can drive the flushing body to rise or fall in the vertical direction.

[0036] A method for cleaning the spout of a nozzle bag, using the cleaning device as described above, comprises the steps of:

[0037] S1. Convey the spout bag with the spout of the spout bag facing vertically upward;

[0038] S2. Use the flushing mechanism to seal the mouth of the nozzle bag from top to bottom;

[0039] S3, making the flushing mechanism move synchronously with the nozzle bag;

[0040] S4. During the movement of the flushing mechanism, the bag mouth of the nozzle bag is flushed with a horizontal flushing liquid flow, and nitrogen is injected into the bag mouth during the process;

[0041] S5. Blow air towards the bag mouth to remove the residual flushing liquid on the bag mouth.

[0042] Compared with the prior art, it has the following beneficial effects:

[0043] (1) This solution uses a flushing mechanism to flush the nozzle bag, and during the flushing process, the following mechanism allows the flushing mechanism and the nozzle bag to move synchronously. This can extend the flushing process of the nozzle bag, thereby cleaning the bag mouth more thoroughly.

[0044] (2) In terms of work efficiency, the flushing method of this scheme integrates the two processes of nitrogen filling and flushing liquid cleaning, which shortens the process time of the existing process while ensuring that the process links remain unchanged.

[0045] (3) This solution integrates the two processes of nitrogen filling and flushing liquid cleaning, which can ensure that the flushing liquid does not enter the nozzle bag during the flushing process.

[0046] (4) This solution performs flushing liquid cleaning while filling with nitrogen. Nitrogen is filled into the nozzle bag from the plugging head during the flushing process. During the flushing process, the plugging head does not leave the bag mouth of the nozzle bag, thus avoiding the problem of nitrogen leakage during the flushing and nitrogen filling process.

[0047] (5) After the flushing liquid is flushed, the present invention uses airflow to remove the residual flushing liquid at the bag mouth, thereby further cleaning the bag mouth.

[0048] (6) The bag mouth sealing of this scheme can be continued until the two processes of liquid flushing and air flow flushing are completed, and then the cover of the nozzle bag can be directly screwed, thereby ensuring the nitrogen injection amount of the nozzle bag to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0050] Figure 2 The flushing mechanism structure of the embodiment of the present application is shown in FIG. Figure 1 ;

[0051] Figure 3 The flushing mechanism structure of the embodiment of the present application is shown in FIG. Figure 2 ;

[0052] Figure 4 This is an enlarged schematic diagram of the flushing cover of an embodiment of the present application;

[0053] Figure 5 This is a schematic diagram of the internal structure of the flushing mechanism of an embodiment of the present application;

[0054] Figure 6 This is the main view of the overall structure of the embodiment of the present application.

[0055] In the figure:

[0056] 100. Spout bag;

[0057] 1. Bag conveying mechanism; 11. Conveying tray; 12. Conveying driving mechanism;

[0058] 2. Flushing mechanism; 21. Blocking assembly; 22. Flushing pipe assembly; 221. Flushing pipe; 222. Flushing cover; 223. Guide groove; 23. Flushing body; 231. Liquid supply passage; 232. Gas supply passage; 233. Nitrogen supply passage; 2321. First air outlet; 2322. Second air outlet;

[0059] 3. Following mechanism; 31. Rotating assembly; 32. Lifting assembly; 321. Lifting plate; 33. Movable frame. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] See also Figure 1-Figure 6 , this application provides the following technical solutions:

[0062] A follow-up nozzle bag cleaning device comprises a bag conveying mechanism 1, a flushing mechanism 2 and a follow-up mechanism 3. The bag conveying mechanism 1 can clamp the nozzle bag 100 to be flushed and convey it; the flushing mechanism 2 is located above the bag conveying mechanism 1, and one flushing mechanism 2 is provided for each nozzle bag 100 to be flushed; each flushing mechanism 2 is provided with a flushing pipe group 22, and each flushing pipe group 22 is connected to a flushing liquid supply pipeline; the follow-up mechanism 3 is linked with the flushing mechanism 2, and can drive the flushing mechanism 2 to follow the movement of the nozzle bag 100 on the bag conveying mechanism 1.

[0063] Through the structure of this solution, the flushing mechanism 2 is used to flush the mouth of the nozzle bag 100, and during the flushing process, the following mechanism 3 makes the flushing mechanism 2 and the nozzle bag 100 move synchronously. In this way, the flushing process of the nozzle bag 100 can be extended, so that the bag mouth can be cleaned more thoroughly.

[0064] On the basis of the above-mentioned embodiments, the conveying of the spout bag 100 can be carried out in a variety of different forms such as linear conveying or circular conveying. The present embodiment adopts a circular conveying method. The bag conveying mechanism 1 includes a circular conveying disc 11, and a plurality of card interfaces are provided on the disc body of the conveying disc 11 corresponding to the bag mouth of the spout bag 100, and the card interfaces are arranged in a circular array evenly distributed. During transportation, the bag mouth of the spout bag 100 is clamped on the conveying disc 11. The conveying disc 11 is driven to rotate by a conveying drive mechanism 12. The conveying drive mechanism 12 of the present embodiment includes a conveying shaft, and the conveying disc 11 and the conveying shaft are coaxially fixedly connected. A conveying gear is also fixedly provided on the shaft of the conveying shaft, and the conveying shaft is driven to rotate by an external gear linkage.

[0065] Because of the need for precise control over the rotation of the conveyor disc 11, this solution adopts a gear drive, which has stronger controllability than belt drive.

[0066] On the basis of the above-mentioned embodiment, the flushing mechanism 2 includes a flushing body 23, and the flushing body 23 and the following mechanism 3 are linked. The following mechanism 3 can drive the flushing body 23 to move along the conveying path of the conveying disk 11, and the following mechanism 3 can drive the flushing body 23 to move toward or away from the bag mouth of the suction nozzle bag 100. A plugging component 21 is arranged at the bottom of the flushing body 23, and the plugging component 21 includes a plugging head with an inverted truncated cone structure, and the small area end of the plugging head is the lower end. When the flushing body 23 moves downward, the plugging head can extend into the bag mouth of the suction nozzle bag 100.

[0067] In this solution, the flushing tube group 22 is composed of four flushing tubes 221. The flushing tube 221 is an arc-shaped tube body, the inlet end of which is fixedly connected to the flushing body 23, and the outlet end of which is horizontally arranged toward the circumference of the area below the plugging component 21, that is, toward the circumference of the bag mouth after the plugging component 21 is blocked. The flushing tubes 221 are evenly arranged around the bag mouth in a circular array.

[0068] Through this structure, the flushing body 23 is driven to move toward the nozzle bag 100 by means of the following mechanism 3, and the blocking component 21 blocks the bag mouth of the nozzle bag 100 to prevent the flushing liquid from entering the bag mouth during flushing. When the flushing body 23 moves with the nozzle bag 100, the flushing pipe 221 flushes water or other flushing liquid required by the customer from the side of the nozzle bag 100 to the bag mouth position, thereby cleaning the bag mouth.

[0069] On the basis of the above embodiment, a liquid supply passage 231 , a gas supply passage 232 and a nitrogen supply passage 233 are provided inside the flushing body 23 .

[0070] One end of the liquid supply passage 231 is connected to a liquid supply source of the flushing liquid through an external connecting pipeline, and the other end is connected to the flushing tube 221 .

[0071] One end of the air supply passage 232 is connected to the flushing air supply source through an external pipeline, and the other end is opened toward the bag mouth.

[0072] One end of the nitrogen supply passage 233 is connected to the nitrogen supply source, and the other end is connected to the blocking component 21.

[0073] The external connection ends of the liquid supply passage 231 and the gas supply passage 232 are respectively located on one lateral side of the flushing body 23, and the nitrogen supply passage 233 is located at the upper part of the flushing body 23. A vertical nitrogen injection hole is provided inside the plugging head of the plugging assembly 21. After the plugging head is inserted into the bag mouth of the nozzle bag 100, nitrogen can enter the nozzle bag 100 through the nitrogen injection hole.

[0074] Through the structure of this solution, the nitrogen supply, flushing and residual removal of the nozzle bag 100 after flushing are integrated on the flushing body 23. During the flushing process, the nozzle bag 100 is sealed and nitrogen is injected into the interior, which can ensure that the flushing liquid does not enter the bag mouth. At the same time, nitrogen is injected synchronously at this stage, which can save time in the overall workflow and does not require additional nitrogen injection procedures. After the flushing pipe 221 has flushed the bag mouth, the air supply passage 232 is opened, and the air pump outputs airflow to remove the residual flushing liquid on the bag mouth, thereby completing the cleaning process of the bag mouth.

[0075] Based on the above implementation scheme, see Figure 4 The air supply passage 232 includes a first air outlet 2321, which is opened on the peripheral side of the plugging head, and its air outlet direction is vertically downward.

[0076] There are many specific configurations for the first air outlet 2321 , and the following two are the most commonly used structures.

[0077] 1. The first air outlet holes 2321 are vertical strip-shaped air passages, and a plurality of them are evenly distributed around the circumference of the sealing head.

[0078] 2. The first air outlet 2321 is an annular structure as a whole, forming an annular air passage around the plugging head.

[0079] Both of the above methods are acceptable, and their function is to blow the bag mouth in a vertical downward direction, thereby blowing the flushing liquid away from the bag mouth and completing the removal of the flushing liquid.

[0080] On the basis of the above implementation scheme, the air supply passage 232 further includes a plurality of second air outlet holes 2322 . The number of the second air outlet holes 2322 corresponds to that of the flushing tube 221 , and the second air outlet holes 2322 are opened toward the port direction of the flushing tube 221 .

[0081] The flushing tube set 22 also includes a flushing cover 222, one flushing cover 222 is provided for each flushing tube 221, and the flushing cover 222 is hinged to the outlet end of the flushing tube 221, and its hinge position is on the upper side of the outlet end of the flushing tube 221. A cushion block is provided on the side of the flushing cover 222 facing the flushing tube 221, and the cushion block can block the flushing tube 221. A guide groove 223 is provided on the side of the flushing cover 222 away from the flushing tube 221. The guide groove 223 is an arc-shaped groove, the upper part of which is opened toward the outlet end of the second air outlet 2322, and the lower part is opened toward the lateral side of the bag mouth.

[0082] By setting the flushing cover 222, when the flushing liquid rushes out from the inside of the flushing tube 221, the flushing cover 222 will be opened upward by the impact of the liquid, and the flushing liquid will flush the bag mouth. When the flushing liquid is cleaned. Open the air supply, and the air flow rushes out through the first air outlet 2321 and the second air outlet 2322 respectively. The first air outlet 2321 cleans the flushing liquid at the bag mouth from top to bottom, and the air flow of the first air outlet 2321 can flow along the external thread of the bag mouth itself. Because the second air outlet 2322 is opened toward the flushing tube 221, the air flow impacts the flushing cover 222. Even if the flushing cover 222 does not close the flushing tube 221 under its own weight, it can also close the flushing tube 221 under the action of the air flow to prevent the flushing liquid in the flushing tube 221 from dripping at the tube mouth, causing the flushing liquid to fall on the nozzle bag 100. With the help of the guide groove 223, the airflow of the second air outlet 2322 can be guided to blow against the bag mouth in the lateral direction, thereby enhancing the cleaning effect of the flushing liquid on the bag mouth.

[0083] On the basis of the above embodiment, the conveying disc 11 is a disc; the following mechanism 3 includes a rotating assembly 31 and a lifting assembly 32. The rotating assembly 31 is used to drive the flushing body 23 to make a circular motion with the axis of the conveying disc 11 as the axis center; the lifting assembly 32 is used to drive the flushing body 23 to rise or fall in the vertical direction.

[0084] The rotating assembly 31 includes a fixed frame, the frame body of the fixed frame is coaxially fixedly connected to the conveying shaft of the conveying drive mechanism 12, and the flushing mechanism 2 is connected through the fixed frame of the rotating assembly 31, so that the flushing mechanism 2 can rotate synchronously with the conveying disc 11.

[0085] With the help of the lifting component 32 , it is possible to determine whether the blocking component 21 of the flushing mechanism 2 closes the bag mouth of the nozzle bag 100 .

[0086] There are two ways to realize the lifting assembly 32, see Figure 1 The lifting assembly 32 includes a fixed lifting plate 321, an arc-shaped groove is provided on the plate of the lifting plate 321, an arc-shaped guide platform is provided at the opening of the arc-shaped groove, and the guide platform and the arc-shaped groove are combined into a circular ring. An inclined surface for transition is provided at the connection between the guide platform and the arc-shaped groove.

[0087] A movable frame 33 is also provided at the fixed frame end of the rotating assembly 31 corresponding to each flushing mechanism 2. The movable frame 33 is vertically slidably connected to the fixed frame. A roller is provided at the lower part of the frame of the movable frame 33. The roller is located on the lifting plate 321. A reset spring is provided between the movable frame 33 and the fixed frame. As the fixed frame rotates, when the movable frame 33 is located in the arc groove, under the action of the spring, the movable frame 33 drives the flushing mechanism 2 to move downward to achieve flushing of the nozzle bag 100. As the movable frame 33 moves to the position of the guide platform, the roller presses on the guide platform, so that the movable frame 33 moves upward, driving the flushing mechanism 2 to rise, the reset spring is compressed, and the flushing mechanism 2 and the nozzle bag 100 are separated.

[0088] For the drive of the conveyor plate 11, the three-phase asynchronous motor can rotate and drive the indexer, and the output shaft of the indexer rotates one circle to complete an intermittent motion. The PLC divides the stroke of one circle into 2000 pulses through the rotary encoder 2000P / R. The value range is input in the touch screen at these 2000 equally divided points (such as 100-200, that is, the PLC always outputs to the solenoid valve in this range). The solenoid valve controls the liquid supply passage 231, the air supply passage 232 and the nitrogen supply passage 233 to complete the flushing liquid flushing, air blowing and nitrogen filling operations.

[0089] In addition, the flushing mechanism 2 can also be driven to rise and fall by means of a cylinder or a cam mechanism, which will not be described in detail here.

[0090] On the basis of the above-mentioned implementation scheme, this solution also proposes a method for cleaning the spout of a nozzle bag, using the above-mentioned cleaning device, comprising the steps of:

[0091] S1, conveying the spout bag 100 with the spout of the spout bag 100 facing vertically upward;

[0092] S2, using the flushing mechanism 2 to seal the bag mouth of the nozzle bag 100 from top to bottom;

[0093] S3, making the flushing mechanism 2 move synchronously with the nozzle bag 100;

[0094] S4, during the movement of the flushing mechanism 2, the bag mouth of the nozzle bag 100 is flushed with a flushing liquid flow in a horizontal direction, and nitrogen is injected into the bag mouth during the process;

[0095] S5. Blow air towards the bag mouth to remove the residual flushing liquid on the bag mouth.

[0096] In terms of work efficiency, the flushing method of this solution integrates the two processes of nitrogen filling and cleaning, which shortens the process time of the existing process while ensuring that the process links remain unchanged. In addition, the integration of the two processes can ensure that the nozzle bag will not be flushed during the flushing process. After the subsequent airflow cleaning, the capping process can be directly entered, and the cover of the nozzle bag can be screwed on the bag mouth. The whole process will hardly leak after nitrogen filling, ensuring the preservation and antiseptic effect of the food inside the nozzle bag.

[0097] In the description of the present application and its embodiments, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "height", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0098] In the present application and its embodiments, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0099] In the present application and its embodiments, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0100] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0101] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0102] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A follow-up nozzle bag mouth cleaning device, characterized in that: include: The bag conveying mechanism can hold the nozzle bag to be rinsed and convey it; A flushing mechanism is located above the bag conveying mechanism and is provided for each nozzle bag to be flushed; each flushing mechanism is provided with a flushing pipe group, and each of the flushing pipe groups is connected to a flushing liquid supply pipeline; A following mechanism, linked with the flushing mechanism, can drive the flushing mechanism to follow the movement of the nozzle bag on the bag conveying mechanism; The bag conveying mechanism comprises: The conveying plate has a card interface on its plate body corresponding to the bag mouth of the suction nozzle bag, and the bag mouth of the suction nozzle bag can be carded on the conveying plate; A conveying drive mechanism, linked with the conveying plate, can drive the conveying plate to convey the nozzle bags thereon; The flushing mechanism also includes: A plugging component is located at the lower part of the flushing mechanism, the plugging component is arranged toward the card interface on the conveying disk, and the plugging component can extend into the bag mouth of the nozzle bag; The flushing tube assembly comprises: A plurality of flushing pipes are provided, and the outlet ends of the flushing pipes are evenly arranged toward the peripheral side of the plugging assembly; the flushing pipes are arc-shaped pipe bodies; The flushing mechanism also includes: A flushing body connected to the blocking assembly and the flushing tube assembly; the flushing body and the following mechanism are linked, the following mechanism can drive the flushing body to move along the conveying path of the conveying disk, and the following mechanism can drive the flushing body to move toward or away from the bag mouth of the nozzle bag; The flushing body is provided with: A liquid supply passage, one end of which is connected to a liquid supply source of the flushing liquid, and the other end of which is connected to the flushing pipe; An air supply passage, one end of which is connected to a flushing air supply source, and the other end of which is arranged toward the bag mouth; The air supply passage comprises a first air outlet, which is arranged on the peripheral side of the plugging head, and the air outlet direction of the first air outlet is vertically downward; The air supply passage also includes a plurality of second air outlet holes, the number of which corresponds to the number of the flushing pipes and is opened toward the port direction of the flushing pipe; The flushing pipe group also includes a flushing cover, one flushing cover is provided for each flushing pipe, the flushing cover is hinged to the outlet end of the flushing pipe, and the hinged position is on the upper side of the outlet end of the flushing pipe; A pad is arranged on the side of the flushing cover facing the flushing pipe, which can block the flushing pipe. A guide groove is arranged on the side of the flushing cover away from the flushing pipe. The guide groove is an arc-shaped groove, the upper part of which is opened toward the outlet end of the second air outlet, and the lower part is opened toward the lateral side of the bag mouth.

2. The follow-up nozzle bag mouth cleaning device according to claim 1, characterized in that: The flushing body is also provided with: A nitrogen supply passage, one end of which is connected to a nitrogen supply source, and the other end of which is connected to the plugging component; A nitrogen injection hole is provided on the blocking component corresponding to the nitrogen supply passage, and a gas outlet end of the nitrogen injection hole is opened toward the inside of the bag mouth of the nozzle bag.

3. The follow-up nozzle bag mouth cleaning device according to claim 2, characterized in that: The blocking component comprises: The plugging head is arranged at the bottom of the flushing body. The plugging head is a frustum-shaped structure, and its bottom end is a small-area end. The nitrogen injection hole is a through hole that vertically penetrates the plugging head.

4. The follow-up nozzle bag mouth cleaning device according to claim 3, characterized in that: The conveying disc is a disc; the following mechanism comprises: The rotating assembly can drive the flushing body to perform circular motion with the axis of the conveying disc as the axis center; The lifting assembly can drive the flushing body to rise or fall in the vertical direction.

5. A method for cleaning a nozzle bag, characterized in that: Using the cleaning device as described in any one of claims 1 to 4, comprising the steps of: S1. Convey the spout bag with the spout of the spout bag facing vertically upward; S2. Use the flushing mechanism to seal the mouth of the nozzle bag from top to bottom; S3, making the flushing mechanism move synchronously with the nozzle bag; S4. During the movement of the flushing mechanism, the bag mouth of the nozzle bag is flushed with a horizontal flushing liquid flow, and nitrogen is injected into the bag mouth during the process; S5. Blow air towards the bag mouth to remove the residual flushing liquid on the bag mouth.

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