A cleaning device for a filter rod forming machine and a filter rod forming machine.

Abstract

This utility model belongs to the field of filter rod production technology, and discloses a cleaning device for a filter rod forming machine and a filter rod forming machine. The cleaning device includes a mounting base, a guide block, and a guide block. The first end of the guide block and the mounting base together form a first annular cavity. A first exhaust hole is opened at the end of the mounting base opposite to the guide block. The outer peripheral wall of the first end of the guide block and the inner peripheral wall of the first exhaust hole together form a first annular exhaust channel communicating with the first annular cavity. The second end of the guide block and the guide block together form a second annular cavity. A second exhaust hole is opened at the end of the guide block opposite to the guide block, communicating with the second annular cavity. The outer peripheral wall of the second end of the guide block and the inner peripheral wall of the second exhaust hole together form a second annular exhaust channel communicating with the second annular cavity. The guide block has a through hole. The filter rod forming machine includes the above-mentioned cleaning device. This cleaning device can clean filter rods, ODM, conveying systems, etc. in the filter rod forming machine. It has a simple structure and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of filter rod production technology, and in particular to a cleaning device for a filter rod forming machine and a filter rod forming machine. Background Technology

[0002] The filter rod forming unit consists of an opening machine, a filter rod forming machine, and a tray loading machine. The opening machine opens the cellulose acetate tow bundles and evenly sprays them with triacetin. The filter rod forming machine consists of a paper feeding system, an adhesive feeding system, a forming system, and a cutting system. The filter rod forming machine wraps the cellulose acetate tow bundles treated by the opening machine with forming paper sprayed with hot melt adhesive and centerline adhesive to form a complete filter rod strip. This strip enters an optical diameter detection device (ODM), and after detection, it is cut into filter rods of the required length and conveyed to the downstream machine via an acceleration wheel and a conveyor drum.

[0003] During filter rod production, due to the special nature of the raw materials, dust, adhesive residue, and fiber fly shavings (hereinafter referred to as dust stains) are easily generated, and these stains are difficult to remove during equipment operation. These dust stains accumulate continuously in components such as the ODM, conveying system, and cutting system, and even accumulate in downstream process equipment such as the filter rod conveying pipe during the filter rod conveying process, and also adhere to the filter rod strips. The accumulation of dust stains has a significant impact on the stable operation of the filter rod forming machine, leading to decreased accuracy in filter rod strip circumference measurement, blockage of the acceleration wheel's suction channel, reduced negative pressure suction, and excessive vibration of the filter rods as they enter the drum from the acceleration wheel, resulting in defective products such as contact points and wrinkles. It can also cause filter rod strip slippage and other malfunctions, leading to frequent downtime, increased material consumption, and reduced equipment operating efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a cleaning device for a filter rod forming machine with a simple structure and strong practicality, which can perform air blowing cleaning on filter rods, ODM, conveying systems, etc., and remove dust stains in a timely and effective manner.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A cleaning device for a filter rod forming machine includes a mounting base, a flow guide block, and a guide block; wherein,

[0007] The first end of the guide block is inserted into the mounting base and together with the mounting base forms a first annular cavity. The mounting base has a first air supply hole that communicates with the first annular cavity. The end of the mounting base facing away from the guide block has a first exhaust hole. The outer peripheral wall of the first end of the guide block and the inner peripheral wall of the first exhaust hole together form a first annular exhaust channel that communicates with the first annular cavity.

[0008] The second end of the guide block is inserted into the guide block and together with the guide block forms a second annular cavity. The guide block has a second air supply hole that communicates with the second annular cavity. The end of the guide block facing away from the guide block has a second exhaust hole that communicates with the second annular cavity. The outer peripheral wall of the second end of the guide block and the inner peripheral wall of the second exhaust hole together form a second annular exhaust channel that communicates with the second annular cavity.

[0009] The guide block has a through hole, and the first exhaust hole is connected to the second exhaust hole through the through hole.

[0010] Preferably, the first exhaust port is configured as a tapered hole with its large end facing and communicating with the first annular cavity, and the portion of the outer peripheral wall of the first end of the guide block extending into the first exhaust port is arranged parallel to the inner peripheral wall of the first exhaust port.

[0011] The second exhaust port includes a first hole and a second hole. The first hole is configured as a tapered hole with its large end facing and communicating with the second annular cavity. The second hole is connected to the small end of the first hole and is configured as a hole of equal diameter. The outer peripheral wall of the second end of the guide block and the inner peripheral wall of the first hole together form the second annular exhaust channel. The portion of the outer peripheral wall of the second end of the guide block that extends into the first hole is arranged parallel to the inner peripheral wall of the first hole.

[0012] Preferably, the distance between the portion of the outer peripheral wall of the first end of the guide block extending into the first exhaust hole and the inner peripheral wall of the first exhaust hole is 0.7 mm, and the angle between the inner peripheral wall of the first exhaust hole and the axial direction of the through hole is 30°; the distance between the portion of the outer peripheral wall of the second end of the guide block extending into the first hole and the inner peripheral wall of the first hole is 0.3 mm, and the angle between the inner peripheral wall of the first hole and the axial direction of the through hole is 15°.

[0013] Preferably, the guide block is provided with a first connecting part, an abutting part and a second connecting part from its first end to its second end, and the through hole passes through the first connecting part, the abutting part and the second connecting part in sequence;

[0014] The mounting base has a first insertion hole at one end facing the guide block, which communicates with the first exhaust hole. The first connecting part is fixedly inserted into the first insertion hole. The mounting base abuts against the abutting part. The first connecting part and the first insertion hole together form the first annular cavity. The outer peripheral wall of the first connecting part and the inner peripheral wall of the first exhaust hole together form the first annular exhaust channel.

[0015] The guide block has a second insertion hole at one end facing the flow guide block, which communicates with the first hole. The second connecting part is fixedly inserted into the second insertion hole. The guide block abuts against the abutting part. The second connecting part and the second insertion hole together form the second annular cavity. The outer peripheral wall of the second connecting part and the inner peripheral wall of the first hole together form the second annular exhaust channel.

[0016] Preferably, the inner peripheral wall of the first insertion hole is provided with a first internal thread, and the outer peripheral wall of the first connecting part is provided with a corresponding first external thread, and the first connecting part is threadedly connected to the first insertion hole.

[0017] The inner peripheral wall of the second insertion hole is provided with a second internal thread, and the outer peripheral wall of the second connecting part is provided with a corresponding second external thread. The second connecting part is threadedly connected to the second insertion hole.

[0018] Preferably, the guide block has a first clamping platform on its outer peripheral wall for holding a wrench, and the abutment part has a second clamping platform on its outer peripheral wall for holding a wrench.

[0019] Preferably, the first air inlet is located on the outer side wall of the mounting base, and the second air inlet is located on the outer side wall of the guide block.

[0020] Preferably, the second vent further includes a third hole portion, which is configured as a tapered hole portion with its small end facing and communicating with the second hole portion.

[0021] Preferably, the mounting base has multiple mounting holes.

[0022] This utility model also provides a filter rod forming machine, which is highly practical and has a good self-cleaning effect.

[0023] A filter rod forming machine includes a filter rod forming machine cleaning device as described in any one of the above claims, and further includes a conveying system, a strip beater, and an ODM. The filter rod forming machine cleaning device is located between the strip beater and the ODM. The mounting base is arranged facing the side where the ODM is located. The conveying system is used to convey filter rod strips. The filter rod strips are passed through the through hole by the strip beater and reach the ODM.

[0024] Beneficial effects:

[0025] The cleaning device for a filter rod forming machine provided by this utility model is positioned between the strip forming machine and the ODM (Original Design Manufacturer) when used in a filter rod forming machine, with the mounting base facing the side where the ODM is located. The first and second air inlets can be connected to an external compressed air source. The first end of the guide block and the mounting base together form a first annular cavity, facing the side where the ODM is located. The second end of the guide block and the guide block together form a second annular cavity, located on the side where the strip forming machine is located. The filter rods pass through the through-hole in the strip forming machine and reach the ODM for inspection. Specifically, compressed air is introduced into the first air inlet. The compressed air enters the first annular cavity through the first air inlet and exits through the first annular exhaust channel, blowing towards the side where the ODM is located. This performs air-blowing cleaning of the ODM and the conveying system on that side, removing dust and stains. Compressed air is then introduced into the second air inlet. The compressed air enters the second annular cavity through the second air inlet and exits through the second annular exhaust channel, blowing towards the side where the filter rod is located. The compressed air blown from this side travels in the opposite direction to the filter rod's forward movement, allowing the filter rod to be enveloped within the annular compressed air, thus achieving a uniform, wrap-around cleaning of the filter rod without generating radial force. This cleaning device has a simple structure, is highly practical, and can perform air-blowing cleaning of filter rods, the ODM, and the conveying system, effectively and promptly removing dust and stains. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the cleaning device for the filter rod forming machine provided by this utility model;

[0027] Figure 2 This is an exploded view of the cleaning device for the filter rod forming machine provided by this utility model;

[0028] Figure 3 This is a front view of the cleaning device for the filter rod forming machine provided by this utility model;

[0029] Figure 4 This utility model is based on Figure 3 Sectional view at point A in the middle;

[0030] Figure 5 This utility model is based on Figure 3 Sectional view at point B;

[0031] Figure 6 This utility model is based on Figure 3 Sectional view at point C;

[0032] Figure 7 This is a top view of the cleaning device for the filter rod forming machine provided by this utility model;

[0033] Figure 8 This utility model is based on Figure 7 Sectional view at point D;

[0034] Figure 9 This is a simplified structural diagram of the filter rod forming machine provided by this utility model.

[0035] In the picture:

[0036] 1. Mounting base; 11. First air inlet; 12. First exhaust outlet; 13. First insertion hole; 14. Mounting hole;

[0037] 2. Guide block; 201. First annular cavity; 202. First annular exhaust channel; 203. Second annular cavity; 204. Second annular exhaust channel; 205. Through hole; 21. First connecting part; 22. Abutting part; 221. Second clamping platform; 23. Second connecting part;

[0038] 3. Guide block; 31. Second air inlet; 32. Second exhaust outlet; 321. First hole; 322. Second hole; 323. Third hole; 33. Second insertion hole; 34. First clamping platform;

[0039] 4. Strip forming device;

[0040] 5. ODM;

[0041] 6. Cutting system;

[0042] 7. Soldering iron;

[0043] 8. Smoking pipe. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0048] Reference Figures 1 to 9 As shown, this embodiment provides a filter rod forming machine, which includes a conveying system, a strip forming device 4, and an ODM 5. The conveying system is used to convey filter rod strips, and the filter rod strips reach the ODM 5 after passing through the through hole 205 in the strip forming device 4. This embodiment also provides a cleaning device for the filter rod forming machine, which includes a mounting base 1, a guide block 2, and a guide block 3. The first end of the guide block 2 is inserted into the mounting base 1 and together with the mounting base 1 forms a first annular cavity 201. The mounting base 1 has a first air inlet 11 communicating with the first annular cavity 201. The end of the mounting base 1 opposite to the guide block 2 has a first exhaust hole 12. The outer peripheral wall of the first end of the guide block 2 and the inner peripheral wall of the first exhaust hole 12 together form a first annular exhaust channel 202 communicating with the first annular cavity 201. The second end of the guide block 2 is inserted into the guide block 3 and together with the guide block 3 forms a second annular cavity 203. The guide block 3 has a second air inlet 31 communicating with the second annular cavity 203. The end of the guide block 3 opposite to the guide block 2 has a second exhaust outlet 32 ​​communicating with the second annular cavity 203. The outer peripheral wall of the second end of the guide block 2 and the inner peripheral wall of the second exhaust outlet 32 ​​together form a second annular exhaust channel 204 communicating with the second annular cavity 203. The guide block 2 has a through hole 205, and the first exhaust outlet 12 communicates with the second exhaust outlet 32 ​​through the through hole 205. The filter rod forming machine cleaning device is located between the strip beater 4 and the ODM5, and the mounting base 1 is set facing the side where the ODM5 is located.

[0049] In this embodiment, the filter rod forming machine also includes a cutting system 6, a soldering iron 7, a smoke gun 8, and other equipment.

[0050] In this embodiment, the filter rod forming machine cleaning device is located between the strip forming machine 4 and the ODM5, with the mounting base 1 facing the side where the ODM5 is located. The first air inlet 11 and the second air inlet 31 can be connected to an external compressed air source, respectively. The first end of the guide block 2 and the mounting base 1 together form a first annular cavity 201, which faces the side where the ODM5 is located. The second end of the guide block 2 and the guide block 3 together form a second annular cavity 203, which is located on the side where the strip forming machine 4 is located. The filter rods pass through the strip forming machine 4 through the through hole 205 and then reach the ODM5 for testing. Specifically, compressed air is supplied to the first air inlet 11, and the compressed air enters the first annular cavity 201 through the first air inlet 11, exits from the first annular exhaust channel 202, and is blown towards the side where ODM5 is located, thereby performing air-blowing cleaning of ODM5 and the conveying system on the side where ODM5 is located, removing dust stains. Compressed air is supplied to the second air inlet 31, and the compressed air enters the second annular cavity 203 through the second air inlet 31, exits from the second annular exhaust channel 204, and is blown towards the side where the filter bar 4 is located. The compressed air blown from this side is in the opposite direction to the forward movement of the filter bar, so the filter bar can be wrapped inside the annular compressed air, thereby performing a wrapping and uniform cleaning of the filter bar without generating radial force on the filter bar. This cleaning device has a simple structure, is highly practical, and can perform air-blowing cleaning of filter bars, ODM5, conveying system, cutting system 6, etc., effectively removing dust stains in a timely manner.

[0051] In this embodiment, the first exhaust port 12 is configured as a tapered hole with its large end facing and communicating with the first annular cavity 201. The portion of the outer peripheral wall of the first end of the guide block 2 extending into the first exhaust port 12 is arranged parallel to the inner peripheral wall of the first exhaust port 12. The second exhaust port 32 includes a first hole portion 321 and a second hole portion 322. The first hole portion 321 is configured as a tapered hole with its large end facing and communicating with the second annular cavity 203. The second hole portion 322 communicates with the small end of the first hole portion 321 and is configured as a hole of equal diameter. The outer peripheral wall of the second end of the guide block 2 and the inner peripheral wall of the first hole portion 321 together form the second annular exhaust channel 204. The portion of the outer peripheral wall of the second end of the guide block 2 extending into the first hole portion 321 is arranged parallel to the inner peripheral wall of the first hole portion 321.

[0052] Specifically, the larger end of the first exhaust port 12 faces the side where the first annular cavity 201 is located, that is, the diameter of the first exhaust port 12 is configured to gradually decrease in the direction away from the guide block 2. The larger end of the first hole portion 321 faces the side where the second annular cavity 203 is located, that is, the diameter of the first hole portion 321 is configured to gradually decrease in the direction away from the guide block 2.

[0053] Specifically, the guide block 2 and the mounting base 1 together form the first annular cavity 201. Compressed air of 3-4 bar is introduced into the first air inlet 11. The compressed air enters the first annular cavity 201 through the first air inlet 11 and is discharged from the first annular exhaust channel 202 and blown towards the side where ODM5 is located. The specific airflow direction can be referred to Figure 8 As shown by the arrow on the right, due to the high pressure of the compressed air being blown out, and according to Bernoulli's principle, the resulting pressure difference will draw out more air through the cleaning device and blow it to ODM5 and the conveying system on the side where ODM5 is located for air blowing cleaning to remove dust stains. The guide block 2 and guide block 3 together form the second annular cavity 203. Compressed air of 0.25 bar-0.35 bar is introduced into the second air outlet 31. The compressed air enters the second annular cavity 203 through the second air outlet 31 and exits from the second annular exhaust channel 204, blowing towards the side where the filter strip 4 is located. The blown compressed air flows along the inner wall of the second annular exhaust channel 204, forming a high-speed airflow. According to Cohen's large surface effect, this high-speed airflow forms a low-pressure area at its front end. According to Bernoulli's principle, under the pressure difference, an airflow will form that wraps around the filter strip. The specific direction of this airflow can be seen by referring to... Figure 8 As shown by the arrow on the left, the airflow direction is opposite to the forward direction of the filter rod, which provides a uniform, wrapping cleaning of the filter rod without generating radial force on it.

[0054] In this embodiment, the distance between the portion of the outer peripheral wall of the first end of the guide block 2 extending into the first exhaust hole 12 and the inner peripheral wall of the first exhaust hole 12 is 0.7 mm, and the angle between the inner peripheral wall of the first exhaust hole 12 and the axial direction of the through hole 205 is 30°. The distance between the portion of the outer peripheral wall of the second end of the guide block 2 extending into the first hole 321 and the inner peripheral wall of the first hole 321 is 0.3 mm, and the angle between the inner peripheral wall of the first hole 321 and the axial direction of the through hole 205 is 15°.

[0055] In this embodiment, the guide block 2 is provided with a first connecting part 21, an abutting part 22, and a second connecting part 23 sequentially from its first end to its second end. The through hole 205 passes through the first connecting part 21, the abutting part 22, and the second connecting part 23 sequentially. The mounting base 1 has a first insertion hole 13 that communicates with the first exhaust hole 12 at one end facing the guide block 2. The first connecting part 21 is fixedly inserted into the first insertion hole 13. The mounting base 1 abuts against the abutting part 22. The first connecting part 21 and the first insertion hole 13 together form a first annular cavity 201. The outer peripheral wall of the first connecting part 21 and the inner peripheral wall of the first exhaust hole 12 together form a first annular exhaust channel 202. The guide block 3 has a second insertion hole 33 that communicates with the first hole 321 at one end facing the guide block 2. The second connecting part 23 is fixedly inserted into the second insertion hole 33. The guide block 3 abuts against the abutting part 22. The second connecting part 23 and the second insertion hole 33 together form a second annular cavity 203. The outer peripheral wall of the second connecting part 23 and the inner peripheral wall of the first hole 321 together form a second annular exhaust channel 204.

[0056] Specifically, the guide block 2 is configured with three parts: a first connecting part 21, an abutting part 22, and a second connecting part 23. The first connecting part 21 is used for fixed connection with the mounting base 1, and the second connecting part 23 is used for fixed connection with the guide block 3. This configuration facilitates the disassembly and assembly of the entire cleaning device, makes internal cleaning convenient, and is suitable for replacing parts.

[0057] In this embodiment, the first connecting part 21, the abutting part 22, and the second connecting part 23 are integrally formed.

[0058] Specifically, in this embodiment, the inner peripheral wall of the first insertion hole 13 is provided with a first internal thread, and the outer peripheral wall of the first connecting part 21 is correspondingly provided with a first external thread, and the first connecting part 21 is threadedly connected to the first insertion hole 13; the inner peripheral wall of the second insertion hole 33 is provided with a second internal thread, and the outer peripheral wall of the second connecting part 23 is correspondingly provided with a second external thread, and the second connecting part 23 is threadedly connected to the second insertion hole 33. Specifically, the threaded connection between the first connecting part 21 and the first insertion hole 13 allows the mounting base 1 and the guide block 2 to be fixed by screwing the threads, which is simple in structure and easy to assemble and disassemble. Moreover, the threaded fit between the first internal thread on the inner peripheral wall of the first insertion hole 13 and the first external thread on the outer peripheral wall of the first connecting part 21 can also have reliable sealing performance, ensuring the effectiveness and reliability of the sealing of the first annular cavity 201.

[0059] The second connecting part 23 is threadedly connected to the second insertion hole 33, so that the guide block 3 and the flow guide block 2 are fixed by screwing the threads. The structure is simple and easy to disassemble and assemble. The threaded fit between the second internal thread on the inner circumferential wall of the second insertion hole 33 and the second external thread on the outer circumferential wall of the second connecting part 23 can also have reliable sealing performance, ensuring the effectiveness and reliability of the sealing of the second annular cavity 203.

[0060] More specifically, the outer peripheral wall of the guide block 3 is provided with a first clamping platform 34 for holding a wrench, and the outer peripheral wall of the abutment portion 22 is provided with a second clamping platform 221 for holding a wrench. Specifically, the first clamping platform 34 is configured as a flat surface, and there are two first clamping platforms 34, which are arranged at 180° intervals on the outer peripheral wall of the guide block 3. The second clamping platform 221 is configured as a flat surface, and there are two second clamping platforms 221, which are arranged at 180° intervals on the outer peripheral wall of the guide block 3.

[0061] This embodiment is not limited to this; the connection between the first connecting part 21 and the first socket 13, and between the second connecting part 23 and the second socket 33, can also be achieved by interference fit. In this embodiment, to ensure a reliable sealing effect, sealing rings can be provided between the first connecting part 21 and the first socket 13, and between the second connecting part 23 and the second socket 33, to prevent air leakage at the gaps.

[0062] In this embodiment, the first air inlet 11 is located on the outer wall of the mounting base 1, and the second air inlet 31 is located on the outer wall of the guide block 3. A compressed air source is connected to the first air inlet 11 and the second air inlet 31 via an external pipeline. To ensure sealing, sealing rings can be added between the external pipeline and the first air inlet 11 and the second air inlet 31.

[0063] In this embodiment, the second vent 32 further includes a third hole 323, which is configured as a tapered hole with its small end facing and communicating with the second hole 322.

[0064] Specifically, the small end of the third hole 323 faces the side where the second hole 322 is located, that is, the diameter of the third hole 323 is configured to gradually increase in the direction away from the second hole 322.

[0065] Specifically, the mounting base 1 has multiple mounting holes 14. Specifically, the mounting base 1 can be connected to the ODM5 housing or other fixable structures via a bolt assembly. For example, the mounting base 1 is fixed to the ODM5 housing. The ODM5 housing has corresponding multiple connection holes. The bolt assembly includes a bolt and a nut, with the bolt passing through the mounting hole 14 and threadedly connected to the connection hole and nut.

[0066] It is worth mentioning that when machining the mounting base 1, guide block 2, and guide block 3, the coaxiality of each hollow cylindrical surface must be strictly ensured. This directly determines the internal working surface of the device after assembly. Good machining coaxiality can greatly reduce the difficulty of subsequent disassembly, cleaning, and reassembly, while also ensuring the stability of the filter rods running within. When assembling the device, only the parts need to be connected by threads, making assembly simple and quick, and facilitating subsequent disassembly. When installing the device, after ensuring the coaxiality of the hollow cylindrical surface inside the guide block 2 with the smoke gun 8, it is fixed to the original guide mounting hole 14 of the equipment with screws, and the two compressed air lines are connected. During equipment maintenance, the device should also be disassembled to clean the dust accumulated in its internal cavity. Thanks to the threaded connection and the design of the annular air passage, cleaning is very convenient and will not cause dust accumulation and blockage in the annular air passage. For device adjustment, shims can be added between the guide block 2 and guide block 3 or between the guide block 2 and mounting base 1 to adjust the distance of the annular air passage. The compressed air pressure can be adjusted by adjusting the pressure regulating valve, making adjustment very simple and convenient.

[0067] For example, a first solenoid valve (ODM5) is provided between the compressed air source and the first air inlet 11, and a second solenoid valve (filter rod) is provided between the compressed air source and the second air inlet 31. Specifically, both the first and second solenoid valves are controlled by a PLC and receive a shutdown signal from the equipment. When the filter rod forming machine is operating normally, the first solenoid valve is closed and the second solenoid valve is open, allowing compressed air from the compressed air source to enter the second annular cavity 203 through the second air inlet 31 and exit from the second annular exhaust channel 204, blowing towards the side where the strip forming device 4 is located, generating a stable annular airflow to clean the filter rod. When the filter rod forming machine stops, the second solenoid valve closes, cutting off the supply of compressed air to the second annular cavity 203, and the first solenoid valve opens for 10 seconds, allowing compressed air to enter the first annular cavity 201 through the first air inlet 11 and exit from the first annular exhaust channel 202, blowing towards the side where the ODM5 is located, and then the first solenoid valve closes. Next, the first and second solenoid valves simultaneously connect compressed air for 3 seconds and then disconnect. This process involves cleaning the ODM5, conveying system, cutting system 6, and other components, followed by cleaning the device itself. When the filter rod forming machine is detected to be running, 5 seconds after the strip forming device 4 forms the filter rod, the second solenoid valve connects compressed air to the second annular cavity 203, generating a stable annular airflow to clean the filter rod strip.

[0068] In summary, the bidirectional annular airflow cleaning design of this cleaning device ensures the cleanliness of the device itself, ODM5 and subsequent production system components, and the final product. It also ensures the stability of the filter bars during the cleaning process, improves equipment operating efficiency and product quality, and guarantees the cleaning effect of the device. Furthermore, this cleaning device replaces the original guide, combining cleaning with guiding functions, and uses a threaded connection, resulting in a simple and effective structure. This significantly improves the device's function per unit area and facilitates convenient disassembly, cleaning, and installation.

[0069] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cleaning device for a filter rod forming machine, characterized in that, It includes a mounting base (1), a flow guide block (2), and a guide block (3); among which, The first end of the guide block (2) is inserted into the mounting base (1) and together with the mounting base (1) forms a first annular cavity (201). The mounting base (1) has a first air supply hole (11) that communicates with the first annular cavity (201). The end of the mounting base (1) facing away from the guide block (2) has a first exhaust hole (12). The outer peripheral wall of the first end of the guide block (2) and the inner peripheral wall of the first exhaust hole (12) together form a first annular exhaust channel (202) that communicates with the first annular cavity (201). The second end of the guide block (2) is inserted into the guide block (3) and together with the guide block (3) forms a second annular cavity (203). The guide block (3) has a second air supply hole (31) that communicates with the second annular cavity (203). The guide block (3) has a second exhaust hole (32) that communicates with the second annular cavity (203) at one end opposite to the guide block (2). The outer peripheral wall of the second end of the guide block (2) and the inner peripheral wall of the second exhaust hole (32) together form a second annular exhaust channel (204) that communicates with the second annular cavity (203). The guide block (2) has a through hole (205), and the first exhaust hole (12) is connected to the second exhaust hole (32) through the through hole (205).

2. The cleaning device for the filter rod forming machine according to claim 1, characterized in that, The first exhaust hole (12) is configured as a tapered hole with its large end facing and communicating with the first annular cavity (201). The portion of the outer peripheral wall of the first end of the guide block (2) extending into the first exhaust hole (12) is arranged parallel to the inner peripheral wall of the first exhaust hole (12). The second exhaust port (32) includes a first hole (321) and a second hole (322). The first hole (321) is configured as a tapered hole with its large end facing and communicating with the second annular cavity (203). The second hole (322) is connected to the small end of the first hole (321) and is configured as a hole of equal diameter. The outer peripheral wall of the second end of the guide block (2) and the inner peripheral wall of the first hole (321) together form the second annular exhaust channel (204). The portion of the outer peripheral wall of the second end of the guide block (2) that extends into the first hole (321) is arranged parallel to the inner peripheral wall of the first hole (321).

3. The cleaning device for the filter rod forming machine according to claim 2, characterized in that, The distance between the portion of the outer peripheral wall of the first end of the guide block (2) extending into the first exhaust hole (12) and the inner peripheral wall of the first exhaust hole (12) is 0.7 mm, and the angle between the inner peripheral wall of the first exhaust hole (12) and the axial direction of the through hole (205) is 30°; the distance between the portion of the outer peripheral wall of the second end of the guide block (2) extending into the first hole (321) and the inner peripheral wall of the first hole (321) is 0.3 mm, and the angle between the inner peripheral wall of the first hole (321) and the axial direction of the through hole (205) is 15°.

4. The cleaning device for the filter rod forming machine according to claim 3, characterized in that, The guide block (2) is provided with a first connecting part (21), an abutting part (22) and a second connecting part (23) from its first end to its second end, and the through hole (205) passes through the first connecting part (21), the abutting part (22) and the second connecting part (23) in sequence; The mounting base (1) has a first insertion hole (13) that communicates with the first exhaust hole (12) at one end facing the guide block (2). The first connecting part (21) is fixedly inserted into the first insertion hole (13). The mounting base (1) abuts against the abutting part (22). The first connecting part (21) and the first insertion hole (13) together form the first annular cavity (201). The outer peripheral wall of the first connecting part (21) and the inner peripheral wall of the first exhaust hole (12) together form the first annular exhaust channel (202). The guide block (3) has a second insertion hole (33) that communicates with the first hole (321) at one end facing the flow guide block (2). The second connecting part (23) is fixedly inserted into the second insertion hole (33). The guide block (3) abuts against the abutting part (22). The second connecting part (23) and the second insertion hole (33) together form the second annular cavity (203). The outer peripheral wall of the second connecting part (23) and the inner peripheral wall of the first hole (321) together form the second annular exhaust channel (204).

5. The cleaning device for the filter rod forming machine according to claim 4, characterized in that, The inner peripheral wall of the first insertion hole (13) is provided with a first internal thread, and the outer peripheral wall of the first connecting part (21) is provided with a corresponding first external thread. The first connecting part (21) and the first insertion hole (13) are threadedly connected. The inner peripheral wall of the second insertion hole (33) is provided with a second internal thread, and the outer peripheral wall of the second connecting part (23) is provided with a corresponding second external thread. The second connecting part (23) is threadedly connected to the second insertion hole (33).

6. The cleaning device for the filter rod forming machine according to claim 5, characterized in that, The guide block (3) has a first clamping platform (34) for holding the wrench on its outer peripheral wall, and the abutment part (22) has a second clamping platform (221) for holding the wrench on its outer peripheral wall.

7. The cleaning device for the filter rod forming machine according to claim 1, characterized in that, The first air inlet (11) is opened on the outer side wall of the mounting base (1), and the second air inlet (31) is opened on the outer side wall of the guide block (3).

8. The cleaning device for the filter rod forming machine according to claim 2, characterized in that, The second vent (32) also includes a third hole (323), which is configured as a tapered hole with its small end facing and communicating with the second hole (322).

9. The cleaning device for the filter rod forming machine according to claim 1, characterized in that, The mounting base (1) has multiple mounting holes (14).

10. A filter rod forming machine, characterized in that, The filter rod forming machine cleaning device as described in any one of claims 1-9 further includes a conveying system, a strip beater (4), and an ODM (5). The filter rod forming machine cleaning device is located between the strip beater (4) and the ODM (5). The mounting base (1) is arranged facing the side where the ODM (5) is located. The conveying system is used to convey filter rod strips. The filter rod strips are passed through the through hole (205) by the strip beater (4) and reach the ODM (5).

Images