Purging cleaning device

Abstract

The invention discloses a purging cleaning device. The purging cleaning device comprises a first bearing seat capable of generating linear displacement, an air supply assembly, a first purging assembly capable of rotating along the axis of the first purging assembly, a second purging assembly and an elastic piece. According to the device, through organic combination of all the components, pulse type blowing of the spinneret plate can be achieved, the blowing angle of blowing airflow can be changed, and the blowing effect is improved; the operation is simple, the second bearing seat and the third bearing seat are in butt joint and fit through external force, then the air source is started to realize automatic purging and cleaning, the purging efficiency is high, the purging effect is good, the blown impurities cannot be dissipated everywhere, the utilization rate of the air source is high, the purging height can be adjusted, and the practicability is high. The device is suitable for blowing and cleaning spinneret plates of different specifications.

Description

[0001] The present invention is a divisional application of a Chinese invention patent application with an application date of February 5, 2025, application number 2025101277325, and name “A pulse blowing cleaning device for a spinneret”. Technical Field

[0002] The invention relates to the technical field of chemical fiber spinning, in particular to the cleaning of a spinneret, and specifically to a blowing and cleaning device which can be used for blowing and cleaning a spinneret. Background Art

[0003] Spinneret is a commonly used device in the fiber spinning process. Its main function is to transform the viscous polymer melt or solution into a thin stream with a specific cross-section through micropores, and then solidify it through a coagulation medium such as air or a coagulation bath to form a filament. Depending on the type and specification of the fiber, the spinneret has different specifications, shapes, hole types, materials, etc.

[0004] After a period of spinning, not only will there be residues in the spinneret holes, but also meltblown materials will be attached to the end surface. If it is not cleaned in time, the spinning effect will be significantly affected after a long time. At present, the cleaning methods of the spinneret include air flow purging, etc. For example, a purging cleaning device is disclosed, which is provided with a purging nozzle on both the upper and lower sides of the meltblown spinneret. The upper purging nozzle is first started to purge the spinneret holes on the spinneret downwards, and after the purging is completed, the lower purging nozzle is started to purge the spinneret holes on the spinneret upwards. Then, the purging cleaning device is claimed to be able to achieve better two-side purging, which is conducive to purging the residual materials in the spinneret holes.

[0005] But in fact, first, the purge cleaning device is provided with purge nozzles on both sides, and the working mode of first downward and then upward during operation is prone to the following unexpected phenomena: when blowing downward, it is easy to blow the residual material to the downward purge nozzle and its surrounding parts, and when blowing upward, it is easy to blow the residual material to the upward purge nozzle and its surrounding parts. In this way, it is easy for the cleaning equipment to accumulate or adhere to residual materials, and it may also cause partial blockage of the purge nozzle, making it difficult to use stably for a long time, and it also needs to be cleaned. Moreover, compared with the spinneret, the purge equipment will be more difficult to clean;

[0006] Second, when the purging cleaning device is applied to different spinnerets, the purging effect varies significantly. The purging effect of some spinnerets is poor, and other cleaning methods or other purging equipment are required for secondary cleaning, which is time-consuming and labor-intensive.

[0007] Third, the purging cleaning device needs to be provided with purging nozzles on both upper and lower sides to ensure the purging effect, and a clamping mechanism on both sides needs to be provided in the middle, which makes the device structure more complicated;

[0008] Fourth, the purging equipment of the purging cleaning device must be open, otherwise the materials blown upward and downward are difficult to be discharged in time. On the one hand, it causes the purging environment to be dirty and messy. On the other hand, the airflow is easy to dissipate around after being ejected, causing energy waste. That is, the utilization rate of the airflow is relatively low, requiring a large amount of air source and a long purging time.

[0009] It can be seen that the existing blowing and cleaning equipment for spinnerets still has many shortcomings. Summary of the invention

[0010] The object of the present invention is to overcome one or more deficiencies in the prior art and to provide an improved pulse-type purging cleaning device which has the advantages of good purging effect, easy operation of the purging process, and high utilization rate of the purging gas source, and can be used for purging and cleaning the spinneret.

[0011] In addition, the purging and cleaning device of the present invention can also adapt to spinnerets of different specifications. The specifications of spinnerets are divided into thick and thin, some spinnerets are thicker, and some spinnerets are thinner. The present invention can adjust different purging distances for different spinnerets while achieving purging in all directions of the spinneret, thereby improving the purging cleanliness and adapting to different spinneret application scenarios.

[0012] In order to achieve the above object, the technical solution adopted by the present invention is:

[0013] A pulse purge cleaning device for a spinneret, the purge cleaning device comprising a first bearing seat capable of linear displacement, an air supply assembly at least partially disposed on the first bearing seat, a first purge assembly capable of rotating along its own axis, a second purge assembly and an elastic member;

[0014] The air supply assembly includes a first air supply channel and a second air supply channel;

[0015] The first purge assembly includes a purge nozzle and an air guide channel. The purge nozzle includes a nozzle body with a cavity formed therein, and an air flow hole connected to the cavity and formed at the bottom of the nozzle body. The air flow hole extends from the middle of the bottom of the nozzle body to the edge. One end of the air guide channel is connected to the first air supply channel in a relatively rotatable manner and is connected to each other, and the other end is connected to the nozzle body and is connected to the cavity.

[0016] The second purge assembly includes a second bearing seat formed with a first air flow channel, and a third bearing seat formed with a second air flow channel and capable of bearing a spinneret, and a blowing nozzle is formed at the outlet of the second air flow channel;

[0017] One end of the elastic member is connected to the first bearing seat, and the other end of the elastic member is connected to the second bearing seat;

[0018] The purging and cleaning device includes a first state and a second state. When the purging and cleaning device is in the first state, the second bearing seat is pressed on the third bearing seat, the second air supply channel, the first air flow channel and the second air flow channel are connected in sequence, and the elastic member is in a compressed state; when the purging and cleaning device is in the second state, the elastic member is in an extended state.

[0019] According to some preferred aspects of the present invention, the second supporting seat is an annular supporting seat having a first hollow structure, the purge nozzle is at least partially located in the first hollow structure and can undergo linear displacement within the first hollow structure, and there is a gap between the purge nozzle and the inner wall of the first hollow structure.

[0020] Furthermore, when the purge cleaning device is in the first state, the bottom of the purge nozzle is located in the first hollow structure.

[0021] In some preferred embodiments of the present invention, an extension direction of the first hollow structure, an extension direction of the elastic member, and a linear displacement direction of the first bearing seat are parallel to each other.

[0022] In some preferred embodiments of the present invention, the first bearing seat has an air guide channel yield hole, the air guide channel passes through the air guide channel yield hole and is connected to the nozzle body, and the purge nozzle is located below the first bearing seat.

[0023] In some preferred embodiments of the present invention, the opening area of ​​the air flow pores accounts for 0.01%-5% of the area of ​​the bottom of the nozzle body.

[0024] According to some preferred aspects of the present invention, the third supporting seat is a supporting seat having a second hollow structure allowing the spinneret to freely enter and exit, and the third supporting seat is provided with a spinneret supporting platform located next to the second hollow structure, and the blowing outlet of the second air flow channel faces the second hollow structure.

[0025] In some preferred embodiments of the present invention, the second purge assembly further includes a sealing gasket, and the sealing gasket is disposed between the second bearing seat and the third bearing seat.

[0026] According to some specific aspects of the present invention, the elastic member is a compression spring.

[0027] In some preferred embodiments of the present invention, the purging and cleaning device further comprises a purging height adjustment mechanism, and the purging height adjustment mechanism comprises a first driving component for driving the first supporting seat to perform linear displacement.

[0028] Furthermore, the purge height adjustment mechanism also includes a distance measuring component and a positioning component;

[0029] The distance measuring assembly includes a distance measuring component arranged on the first bearing seat, a first distance measuring clearance hole formed on the first bearing seat, and a second distance measuring clearance hole formed on the nozzle body, wherein the distance measuring component, the first distance measuring clearance hole, and the second distance measuring clearance hole are arranged in sequence from top to bottom, and the distance measuring component is arranged opposite to the first distance measuring clearance hole;

[0030] The positioning assembly includes a transmitting end, a receiving end arranged opposite to the transmitting end, and a blocking portion directly or indirectly connected to the air guiding channel and moving synchronously with the air guiding channel;

[0031] When the blocking portion is located between the transmitting end and the receiving end, the center line of the first distance measuring hole coincides with the center line of the second distance measuring hole.

[0032] In some preferred embodiments of the present invention, the purge cleaning device also includes a second driving component for driving the first purge component to rotate along its own axis, the second driving component includes a transmission member sleeved on the air guide channel, a synchronous belt sleeved on the transmission member at one end, and a driving member whose output end is transmission-connected to the other end of the synchronous belt, and the driving member is arranged on the first bearing seat.

[0033] In some preferred embodiments of the present invention, the air guide channel includes a rotary joint and an air guide pipe connected to the lower part of the rotary joint, the lower end of the air guide pipe is threadedly connected to the nozzle body, and the upper part of the rotary joint is relatively rotatably connected to the first air supply channel and is interconnected.

[0034] In some preferred embodiments of the present invention, one end of the elastic member is connected to the outer peripheral side of the first bearing seat, and the other end of the elastic member is connected to the upper end of the second bearing seat. The elastic member has multiple evenly distributed ones surrounding the first purge assembly.

[0035] In some preferred embodiments of the present invention, an air flow connector is further provided on the second bearing seat, and the first air flow channel is connected to the second air supply channel through the air flow connector.

[0036] In some preferred embodiments of the present invention, the purging and cleaning device further comprises a protective cover respectively covering a part of the air supply assembly and a part of the first purging assembly, and a lower end portion of the protective cover is disposed on the first bearing seat.

[0037] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0038] Based on the current defects of poor purging effect, poor use stability, complicated operation, and low air source utilization rate when purging and cleaning the spinneret, the present invention innovatively provides an improved purging and cleaning device, which is organically combined with a first bearing seat, a second bearing seat, a third bearing seat, a first purging assembly, a second purging assembly and an elastic member. First, pulse purging of the spinneret is realized. During purging, the purging extends radially and then rotates around the middle to realize overall pulse purging. The intermittent introduction of the airflow will form an unstable flow state in the spinneret hole of the spinneret, generating strong disturbances. Such disturbances can cause the airflow environment around the impurities to change continuously, increase the contact area and frequency between the impurities and the airflow, and during the purging interval, the pressure in the spinneret hole of the spinneret will decrease. When purging is performed again, the high-speed airflow rushes in instantly, generating a large impact force, which can more effectively crush and peel off the impurities and materials attached to the surface, thereby helping to improve the purging and cleaning effect.

[0039] Second, the air flow pores of the present invention extend from the middle of the bottom of the nozzle body to the edge, that is, they are roughly in the shape of a long strip opening, which can not only achieve the purge of more areas per unit time, but also increase the flow rate and pressure of the air flow when it is blown out, increase the purge force, and the rotary output gas, due to the high-speed rushing out and the effect of inertia, the air flow has a greater frequency to enter the spinneret in an inclined manner, and the way of entering in the tangential direction just fits the setting form of the spinneret on the spinneret plate, which is conducive to removing the sundries and materials adhering to the inner wall of the spinneret;

[0040] Third, the presence of the elastic member, on the one hand, enables the second and third bearing seats, which are separately arranged, to fit tightly together when they are fitted, thereby achieving the conduction of the air source without air leakage, thereby achieving the blowing and cleaning of the spinneret from the side and / or bottom, thereby increasing the blowing and cleaning effect; on the other hand, during the pulse blowing process, it will pass through an area without spinneret holes. At this time, the high-speed airflow will directly act on the surface of the spinneret, and the third bearing seat is generally placed on a platform. Therefore, it is difficult for the spinneret to move. Under the reverse force, it will be directly transmitted to the first bearing seat, and the first bearing seat will press the second bearing seat under the action of external force and make it fit with the third bearing seat. At this time, the presence of the elastic member has a certain buffering effect, causing the first bearing seat to vibrate slightly under the action of the elastic member. This high and low vibrating movement causes the height of the subsequent airflow to change slightly periodically, thereby causing the airflow to be significantly disturbed, which is conducive to the shedding of debris;

[0041] Fourth, the present invention is easy to operate. The second supporting seat and the third supporting seat are docked and fitted together by external force, and then the air source is started to realize automatic blowing and cleaning. The blowing efficiency is high, the blowing and cleaning effect is good, and the blown debris will not be scattered everywhere. The air source utilization rate is high. At the same time, the blowing height can be adjusted, which is suitable for blowing and cleaning of spinnerets of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0043] Figure 1 This is one of the structural schematic diagrams of the pulse blowing cleaning device for the spinneret in an embodiment of the present invention;

[0044] Figure 2 A schematic side view of a pulse purge cleaning device for a spinneret in an embodiment of the present invention;

[0045] Figure 3 for Figure 2 Sectional view along AA direction;

[0046] Figure 4 This is a second structural schematic diagram of a pulse purge cleaning device for a spinneret in an embodiment of the present invention;

[0047] Figure 5 Schematic diagram of the purge of the pulse purge cleaning device for the spinneret in the embodiment of the present invention (in the first state);

[0048] Figure 6 for Figure 5 A schematic diagram of a structure in which the second bearing seat is separated from the third bearing seat;

[0049] Figure 7 Schematic diagram of the airflow pores of the spinneret in the embodiment of the present invention;

[0050] Figure 8 Schematic diagram of debris in the spinneret hole of the spinneret in an embodiment of the present invention;

[0051] Fig. 9 The third structural schematic diagram of the pulse purge cleaning device for the spinneret in the embodiment of the present invention;

[0052] Fig.10 for Fig. 9 The enlarged schematic diagram of point A in the middle;

[0053] Fig.11This is a fourth structural schematic diagram of a pulse purge cleaning device for a spinneret in an embodiment of the present invention;

[0054] Fig.12 This is one of the structural schematic diagrams of the pulse purge cleaning device for a spinneret in an embodiment of the present invention with some components hidden;

[0055] Fig.13 The second structural schematic diagram of the pulse purge cleaning device for a spinneret in an embodiment of the present invention with some components hidden;

[0056] Fig.14 Schematic diagram of the structure of the purge nozzle in the embodiment of the present invention;

[0057] In the accompanying drawings: 1, first bearing seat; 2, air supply assembly; 21, first air supply channel; 22, second air supply channel; 23, first air inlet nozzle; 24, second air inlet nozzle; 25, air supply seat; 31, purge nozzle; 311, nozzle body; 3111, cavity; 3112, air flow pore; 312, slotted opening; 32, air guide channel; 321, rotary joint; 322, air guide tube; 41, second bearing seat; 411, first air flow channel; 412, first hollow structure; 413, air flow joint; 42, third Support seat; 421, second air flow channel; 4211, blowing nozzle; 422, second hollow structure; 423, spinneret support platform; 43, sealing pad; 5, elastic member; 6, first drive assembly; 71, distance measuring component; 72, first distance measuring clearance hole; 73, second distance measuring clearance hole; 81, transmitting end; 82, receiving end; 83, blocking part; 91, transmission member; 92, synchronous belt; 93, driving member; 10, protective cover; 101, guide limit through hole; 100, spinneret; 110, upper end surface of spinneret; 200, debris. DETAILED DESCRIPTION

[0058] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0059] In the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0062] like Figures 1 to 14 As shown, this example provides a pulse purge cleaning device for a spinneret and a schematic purge process of the purge cleaning device.

[0063] The purging cleaning device includes a first bearing seat 1 capable of linear displacement, an air supply assembly 2 at least partially arranged on the first bearing seat 1, a first purging assembly capable of rotating along its own axis, a second purging assembly and an elastic member 5; the air supply assembly 2 includes a first air supply channel 21 and a second air supply channel 22; the first purging assembly includes a purging nozzle 31 and an air guide channel 32, the purging nozzle 31 includes a nozzle body 311 with a cavity 3111 formed therein, and an air flow pore 3112 connected to the cavity 3111 and formed at the bottom of the nozzle body 311, the air flow pore 3112 extending from the middle of the bottom of the nozzle body 311 to the edge (for example, it can extend from the center of the bottom to the edge and not penetrate at the edge); one end of the air guide channel 32 is connected to the first air supply channel 21 for relative rotation and They are interconnected, and the other end is connected to the nozzle body 311 and connected to the cavity 3111; the second purge assembly includes a second bearing seat 41 formed with a first air flow channel 411, and a third bearing seat 42 formed with a second air flow channel 421 and capable of supporting a spinneret, and a blowing port 4211 is formed at the outlet of the second air flow channel 421; one end of the elastic member 5 is connected to the first bearing seat 1, and the other end of the elastic member 5 is connected to the second bearing seat 41; the purge cleaning device includes a first state and a second state, when the purge cleaning device is in the first state, the second bearing seat 41 is pressed on the third bearing seat 42, the second air supply channel 22, the first air flow channel 411 and the second air flow channel 421 are connected in sequence, and the elastic member 5 is in a compressed state; when the purge cleaning device is in the second state, the elastic member 5 is in an extended state.

[0064] In this example, the first supporting seat 1 has an air guide channel clearance hole (not shown), the air guide channel 32 passes through the air guide channel clearance hole and is connected to the nozzle body 311, and the purge nozzle 31 is located below the first supporting seat 1, so as not to interfere with the rotation of the purge nozzle and to achieve better support.

[0065] The opening area of ​​the air flow pore 3112 accounts for 0.01%-5% of the area of ​​the bottom of the nozzle body 311, for example, including but not limited to 0.02%, 0.05%, 0.06%, 0.08%, 0.09%, 0.1%, 0.2%, 0.5%, 0.8%, 1%, 1.1%, 1.2%, 1.5%, 2%, 2.5%, 3%, 4%, etc., which can achieve better purge while efficiently utilizing the blowing jet.

[0066] In this example, the second bearing seat 41 is an annular bearing seat with a first hollow structure 412, the purge nozzle 31 is at least partially located in the first hollow structure 412 and can be linearly displaced in the first hollow structure 412, there is a gap between the purge nozzle 31 and the inner wall of the first hollow structure 412, which is convenient for the purge nozzle 31 to rotate, and the extension direction of the first hollow structure 412, the extension direction of the elastic member 5 and the linear displacement direction of the first bearing seat 1 are parallel to each other, which is conducive to pulse-type purge cleaning and improves the purge cleaning effect. Further, when the purge cleaning device is in the first state, the bottom of the purge nozzle 31 is located in the first hollow structure 412, which is conducive to preventing the blown airflow from escaping outward and improving the utilization rate of the air source; in addition, an airflow joint 413 is also provided on the second bearing seat 41, and the first airflow channel 411 is connected to the second air supply channel 22 through the airflow joint 413.

[0067] The third supporting seat 42 is a supporting seat with a second hollow structure 422 that allows the spinneret to move in and out freely. The third supporting seat 42 is provided with a spinneret supporting platform 423 located next to the second hollow structure 422. The blowing port 4211 of the second air flow channel 421 faces the second hollow structure 422, which is conducive to blowing and cleaning the side and / or bottom of the spinneret.

[0068] The second purge assembly further includes a sealing gasket 43 , which is disposed between the second bearing seat 41 and the third bearing seat 42 , so as to maintain airtightness when the two are fitted together and avoid gas leakage.

[0069] One end of the elastic member 5 is connected to the outer peripheral side of the first bearing seat 1, and the other end of the elastic member 5 is connected to the upper end of the second bearing seat 41. The elastic member 5 has multiple evenly distributed ones surrounding the first purge assembly, which is beneficial to the stability of the structure and realizes vibration-type motion purge; further, the elastic member 5 is a compression spring, and there is a certain gap between the coils of the compression spring. When subjected to an external load, the spring contracts and deforms to store deformation energy.

[0070] The purging cleaning device also includes a purging height adjustment mechanism, which includes a first driving component 6 for driving the first bearing seat 1 to undergo linear displacement, a distance measuring component and a positioning component; the distance measuring component includes a distance measuring component 71 arranged on the first bearing seat 1, a first distance measuring clearance hole 72 formed on the first bearing seat 1, and a second distance measuring clearance hole 73 formed on the nozzle body 311, the distance measuring component 71, the first distance measuring clearance hole 72, and the second distance measuring clearance hole 73 are arranged in sequence from top to bottom, and the distance measuring component 71 is arranged opposite to the first distance measuring clearance hole 72; the positioning component The component includes a transmitting end 81, a receiving end 82 arranged opposite to the transmitting end 81 (for example, it can be the receiving end and the transmitting end of a photoelectric sensor), and a blocking portion 83 directly or indirectly connected to the air guide channel 32 and moving synchronously with the air guide channel 32; when the blocking portion 83 is located between the transmitting end 81 and the receiving end 82, the center line of the first ranging hole 72 coincides with the center line of the second ranging hole 73, so that the ranging signal of the ranging component 71, such as a laser signal, can pass through these holes to irradiate on the spinneret, thereby achieving ranging, such as laser ranging.

[0071] In this example, the purging and cleaning device also includes a second driving component for driving the first purging component to rotate along its own axis, the second driving component includes a transmission member 91 mounted on the air guide channel 32, a synchronous belt 92 with one end mounted on the transmission member 91, and a driving member 93 with an output end transmission-connected to the other end of the synchronous belt 92, and the driving member 93 is arranged on the first supporting seat 1.

[0072] The air guide channel 32 includes a rotary joint 321 and an air guide pipe 322 connected to the lower part of the rotary joint 321. The lower end of the air guide pipe 322 is threadedly connected to the nozzle body 311. The upper part of the rotary joint 321 is relatively rotatably connected to the first air supply channel 21 and communicates with each other.

[0073] In this example, the purging and cleaning device also includes a protective cover 10 respectively covering part of the air supply component and part of the first purging component. The lower end of the protective cover 10 is arranged on the first supporting seat 1. At the same time, a guide limit through hole 101 can be arranged on the outer wall of the protective cover 10. The second air supply channel 22 and the airflow connector 413 can be connected by a hose or other types of pipes, and the guide limit through hole 101 can be used to limit and guide the hose or other types of pipes to avoid messy arrangement and the like. At the same time, the protective cover can also protect some components to prevent debris from entering or being damaged by collision with other objects.

[0074] See also Figures 1 to 4 As shown, the air supply component includes a first air supply channel 21, a second air supply channel 22, a first air inlet nozzle 23, a second air inlet nozzle 24, and an air supply seat 25. The first air supply channel 21, the second air supply channel 22, the first air inlet nozzle 23, and the second air inlet nozzle 24 are respectively connected to the air supply seat 25. The air supply seat 25 has an inner cavity, and they are respectively connected to the inner cavity; wherein, one of the first air inlet nozzle 23 and the second air inlet nozzle 24 is used to introduce high-temperature compressed gas, and the other is used to introduce normal-temperature compressed air, and the air supply seat 25 is used to distribute the introduced gas to the first air supply channel 21 and the second air supply channel 22. Channel 22, and the air flow of the first air supply channel 21 is used to supply to the purge nozzle 31, and the air flow of the second air supply channel 22 is used to supply to the air flow connector 413. In actual operation, the second air supply channel 22 can have multiple, and the air flow connector 413 can have a one-to-one corresponding number. Of course, the number of guide limit through holes 101 and blowing nozzles can also be multiple, so that purging and cleaning in more directions and positions can be achieved; in addition, the second air supply channel 22, the first air inlet nozzle 23, the second air inlet nozzle 24, and the air supply seat 25 are all located above the protective cover 10, which is convenient for docking pipes and other operations.

[0075] Furthermore, the first drive assembly 6 may include a driving component (such as a power component such as a cylinder), and the output end of the driving component may be directly or indirectly connected to the first support seat 1, thereby driving the first support seat 1 to perform an upward or downward linear displacement operation. The driving component and the manner in which it is connected to the first support seat 1 are conventional and will not be described in detail herein.

[0076] In this example, the first air supply channel 21 is connected and communicated with a rotary joint 321 (which can be directly commercially obtained, and its function is mainly to achieve connection and communication while also being able to rotate relative to each other), the rotary joint 321 and the air guide pipe 322 can be detachably connected and communicated, and the air guide pipe 322 can be connected and communicated with the nozzle body 311 by means of a threaded connection. For example, an external thread can be provided on the outer wall of the air guide pipe 322, and an internal thread can be provided on the nozzle body 311, so that the two can be quickly connected and communicated. At the same time, a transmission member 91 is also provided on the outer periphery of the air guide pipe 322, which is driven by a synchronous belt 92. The transmission member 91 rotates, thereby driving the air guide tube 322 to rotate, thereby driving the nozzle body 311 to rotate synchronously, and the synchronous belt 92 can be moved by the driving member 93. For example, the driving member 93 can include a driving source (motor, etc.) and a synchronous pulley connected to the driving source. One end of the synchronous belt 92 is sleeved on the transmission member 91, and the other end is sleeved on the synchronous pulley. When the driving source drives the synchronous pulley to rotate, the synchronous belt 92 can be driven to rotate accordingly, thereby driving the transmission member 91 to rotate, so that the nozzle body 311 rotates along its own axis, thereby realizing a pulsed purge mode. And due to the existence of the rotary joint 321, when the air guide channel 32 and the purge nozzle 31 rotate synchronously, the first air supply channel 21 will not rotate unexpectedly, ensuring the stability of the device operation; in addition, it can also be provided by setting, for example, a bearing or other component, sleeved on the air guide tube 322, and then fixing the bearing on the support plate, and the support plate can be fixed on the first bearing seat 1, thereby facilitating the support stability of the air supply assembly 2.

[0077] See also Figures 5 to 8 , Figure 5 The second bearing seat 41 and the third bearing seat 42 are tightly fitted together. Figure 6The second bearing seat 41 is separated from the third bearing seat 42, and the arrow direction in the figure is the flow direction of the compressed air. It can be seen that the compressed air in the air guide pipe 322 is passed into the nozzle body 311, and the bottom of the nozzle body 311 is facing the upper surface of the spinneret 100. When the compressed air is sprayed out, it can not only blow the upper surface of the spinneret 100, but also make the airflow enter the spinneret hole of the spinneret 100 to achieve the cleaning and blowing of sundries and materials, while the airflows on both sides are passed into the first airflow channel 411 through the airflow joint 413, and then enter the second airflow channel 421 connected thereto, and finally sprayed out from the blowing nozzle 4211, and the blowing nozzle 4211 is close to and faces the first airflow channel 411. The side and bottom of the spinneret are moved downwards, which is conducive to blowing away the debris materials on the side and bottom of the spinneret; in particular, when the first bearing seat 1 moves downwards, the second bearing seat 41 is driven to move downwards, so that when the second bearing seat 41 is pressed on the third bearing seat 42 and fits each other, due to the presence of the elastic member, on the one hand, the second bearing seat 41 and the third bearing seat 42 can fit each other more closely, and on the other hand, when the elastic member is compressed, the reverse impact force of the airflow can cause the whole to vibrate slightly, which is conducive to some changes in the impact force and impact direction of the airflow, improves the mutual force of the airflow, improves the disturbance ability, and thus improves the cleaning and purging effect. In addition, since the airflow circulation pore 3112 is driven to rotate, during the rotation process, due to the high-speed rushing of the airflow and the action of the inertial force, the direction of the airflow entering the spinneret hole will change, which not only improves the disturbance force of the airflow, but also can purge the debris in a direction that is more conducive to purging the debris, thereby facilitating the purge and removal of the debris 200 in the upper end face 110 of the spinneret and the spinneret hole.

[0078] Furthermore, in this example, before starting to purge, the distance between the nozzle body 311 and the spinneret can be controlled by combining the first driving component 6, the distance measuring component and the positioning component, that is, the purge height can be controlled to adapt to the optimal purge distance of spinnerets of different specifications, such as different thicknesses; when the air guide channel 32 rotates, the blocking portion 83 arranged thereon will also rotate accordingly. In this example, when the blocking portion 83 is located between the transmitting end 81 and the receiving end 82, the center line of the first distance measuring clearance hole 72 coincides with the center line of the second distance measuring clearance hole 73. In this way, the distance measuring component 71, for example, can select a laser distance measuring sensor, and the signal emitted by it, such as a laser, can pass through the heavy components, that is, the intermediate barrier Some components are used to enable the laser to irradiate the spinneret, thereby realizing distance measurement, and the distance between the distance measuring component 71 and the nozzle body 311 is fixed. When the distance between the distance measuring component 71 and the spinneret is known, the distance between the nozzle body 311 and the spinneret can be known. At this time, the first driving component 6 can be controlled according to the actually obtained data to drive the first supporting seat 1 to perform an upward or downward linear displacement, thereby realizing the control of the distance between the nozzle body 311 and the spinneret, that is, the purge height can be controlled to achieve the best purge effect. Preferably, a control system can be provided to communicate with the aforementioned electric components, so that automatic control can be achieved through the control system.

[0079] See also Figure 12 to Figure 14 As shown, the purge nozzle 31 of this example can rotate and linearly displace in the hollow structure of the second bearing seat 41 at the same time, and there will be no unexpected obstruction between the two; there are multiple first air flow channels 411, which can introduce purge gas such as compressed air into the second air flow channels, which also have multiple purge gas at different positions and directions, to achieve multi-angle and multi-position cleaning and purging; a plurality of second ranging holes 73 are arranged on the purge nozzle of this example, preferably two symmetrical holes are arranged, and the area where the air flow pores 3112 are located is avoided, which is conducive to ensuring the balance of the overall weight on both sides and the stability during rotation, and the cavity 3111 is roughly in the shape of a long strip. Since it is located inside the nozzle body 311, it can be realized by cutting the groove processing port 312. After the opening is completed, the groove processing port 312 can be blocked to prevent gas leakage. At the same time, the upper surface of the nozzle body 311 is provided with an opening connected to the air guide pipe, which is convenient for conveying compressed air into the cavity 3111 and then spraying it out from the air flow pores 3112.

[0080] In summary, based on the current defects of poor purging effect, poor stability in use, complicated operation, and low gas source utilization rate when blowing and cleaning the spinneret, the present invention innovatively provides an improved purging and cleaning device, which is an organic combination of a first bearing seat, a second bearing seat, a third bearing seat, a first purging assembly, a second purging assembly and an elastic member. First, pulse purging of the spinneret is achieved. The purging extends radially and then rotates around the middle to achieve overall pulse purging. The intermittent introduction of airflow will form an unstable flow state in the spinneret holes of the spinneret, generating strong disturbances. This disturbance can cause the airflow environment around the impurities to change continuously, thereby increasing the interaction between the impurities and the airflow. The contact area and frequency are improved, and during the purging interval, the pressure in the spinneret hole of the spinneret will drop. When purging is performed again, the high-speed airflow rushes in instantly, generating a greater impact force, which can more effectively break and peel off impurities, dust, etc. attached to the surface, thereby helping to improve the purging effect; in particular, the airflow flow pores of the present invention extend from the middle of the bottom of the nozzle body to the edge, that is, they are roughly in the shape of a long strip opening, which can not only achieve purging of more areas per unit time, but also increase the flow rate and pressure of the airflow when it is blown out, increase the purging force, and rotate the output gas. Due to the high-speed rushing out and the inertial force, the airflow has a greater frequency to enter the spinneret hole in an inclined manner and enter in a tangential direction. The arrangement of the spinneret holes on the spinneret is just right for the arrangement of the spinneret holes on the spinneret, which is beneficial for removing foreign materials adhering to the inner wall of the spinneret holes; secondly, the presence of the elastic member, on the one hand, enables the separately arranged second bearing seat and the third bearing seat to fit tightly when they are fitted together, thereby achieving the conduction of the air source without air leakage, thereby achieving the blowing and cleaning of the spinneret from the side and / or bottom, thereby increasing the blowing effect; on the other hand, during the pulse blowing process, it will pass through the area without spinneret holes. At this time, the high-speed airflow will directly act on the surface of the spinneret, and the third bearing seat is generally placed on the platform. Therefore, it is difficult for the spinneret to move. Under the reverse force, it will be directly transmitted to the first bearing seat, and the first bearing seat Under the action of external force, the second bearing seat and the third bearing seat will be pressed to fit together. At this time, the existence of the elastic member has a certain buffering effect, causing the first bearing seat to vibrate slightly under the action of the elastic member. This high and low vibrating movement causes the height of the subsequent rushing airflow to change slightly periodically, thereby causing the airflow to be significantly disturbed, which is conducive to the shedding of debris. Furthermore, the present invention is simple to operate. The second bearing seat and the third bearing seat are docked and fit together through external force, and then the air source is started to realize automatic blowing and cleaning. The blowing efficiency is high, the blowing effect is good, and the blown debris will not be scattered everywhere. The air source utilization rate is high. At the same time, the blowing height can be adjusted, which is suitable for blowing and cleaning of spinnerets of different specifications.

[0081] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

[0082] The endpoints and any values ​​of the ranges disclosed in this article are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of each range, the endpoint values ​​of each range and the individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed in this article.

Claims

1. A purging and cleaning device, which can be used to purge and clean a spinneret, characterized in that: The purge cleaning device comprises a first bearing seat capable of linear displacement, an air supply assembly having a first air supply channel and a second air supply channel, a first purge assembly capable of rotating along its own axis and supported on the first bearing seat, a second purge assembly and an elastic member; The first purge assembly includes a purge nozzle and an air guide channel. The purge nozzle includes a nozzle body with a cavity formed therein, and an air flow hole connected to the cavity and formed at the bottom of the nozzle body. The air flow hole extends from the middle of the bottom of the nozzle body to the edge. One end of the air guide channel is connected to the first air supply channel in a relatively rotatable manner and is connected to each other, and the other end is connected to the nozzle body and is connected to the cavity. The second purge assembly includes a second bearing seat formed with a first air flow channel, and a third bearing seat formed with a second air flow channel and capable of bearing a spinneret, a blowing nozzle is formed at the outlet of the second air flow channel, one end of the elastic member is connected to the first bearing seat, and the other end of the elastic member is connected to the second bearing seat; The purging and cleaning device includes a first state and a second state. When the purging and cleaning device is in the first state, the second bearing seat is pressed on the third bearing seat and fits each other, the second air supply channel, the first air flow channel and the second air flow channel are connected in sequence, and the elastic member is in a compressed state; when the purging and cleaning device is in the second state, the elastic member is in an extended state.

2. The purging cleaning device according to claim 1, characterized in that: The blowing nozzle is close to and faces the side and / or bottom of the spinneret; and / or, when the blowing and cleaning device is in the second state, the second support seat is separated from the third support seat; and / or, the blowing nozzle is located below the first support seat.

3. The purging cleaning device according to claim 1, characterized in that: The first airflow channel and the second airflow channel have the same number of multiple and one-to-one corresponding ones, and the multiple first airflow channels can pass purge gas into the second airflow channels, which also have multiple, at different positions and directions; and / or, the cavity is in the shape of an elongated strip; and / or, an airflow joint is also provided on the second supporting seat, and the first airflow channel is connected with the second air supply channel through the airflow joint; further, the purge cleaning device also includes a protective cover respectively covering part of the air supply assembly and part of the first purge assembly, and the lower end of the protective cover is provided on the first supporting seat; further, a guide limit through hole is provided on the outer wall of the protective cover, and the second air supply channel and the airflow joint are connected by a hose or other types of pipes, and the guide limit through hole is used to limit and guide the hose or other types of pipes.

4. The purging cleaning device according to claim 1, characterized in that: The air supply assembly further includes a first air inlet nozzle, a second air inlet nozzle, and an air supply seat. The first air supply channel, the second air supply channel, the first air inlet nozzle, and the second air inlet nozzle are respectively connected to the air supply seat.

5. The purging cleaning device according to claim 4, characterized in that: The air supply seat has an inner cavity, and the first air supply channel, the second air supply channel, the first air inlet nozzle, and the second air inlet nozzle are respectively connected to the inner cavity; and / or, one of the first air inlet nozzle and the second air inlet nozzle is used to introduce high-temperature compressed gas, and the other is used to introduce normal temperature compressed air, and the air supply seat is used to distribute the introduced gas to the first air supply channel and the second air supply channel.

6. The purging cleaning device according to claim 1, characterized in that: The airflow pores extend from the center of the bottom of the nozzle body to the edge and are not connected at the edge; and / or the opening area of ​​the airflow pores accounts for 0.01%-5%, further 0.02%-4.0% of the area of ​​the bottom of the nozzle body.

7. The purging cleaning device according to claim 1, characterized in that: The second bearing seat is an annular bearing seat having a first hollow structure, the purge nozzle is at least partially located in the first hollow structure and can be linearly displaced in the first hollow structure, and there is a gap between the purge nozzle and the inner wall of the first hollow structure; further, the extension direction of the first hollow structure, the extension direction of the elastic member and the linear displacement direction of the first bearing seat are parallel to each other; when the purge cleaning device is in the first state, the bottom of the purge nozzle is located in the first hollow structure; and / or, The third bearing seat is a bearing seat having a second hollow structure that allows the spinneret to freely enter and exit, the third bearing seat is provided with a spinneret bearing platform located beside the second hollow structure, and the blowing nozzle of the second air flow channel faces the second hollow structure; and / or, The air guide channel includes a rotary joint and an air guide pipe connected to the lower part of the rotary joint, the lower end of the air guide pipe is threadedly connected to the nozzle body, and the upper part of the rotary joint is relatively rotatably connected to the first air supply channel and communicated with each other; further, the rotary joint is detachably connected to the air guide pipe; and / or, One end of the elastic member is connected to the outer peripheral side of the first bearing seat, and the other end of the elastic member is connected to the upper end of the second bearing seat. The elastic member has multiple evenly distributed elastic members surrounding the first purge assembly.

8. The purging cleaning device according to claim 1, characterized in that: The purge cleaning device further comprises a purge height adjustment mechanism, a distance measuring component and a positioning component, wherein the purge height adjustment mechanism comprises a first driving component for driving the first bearing seat to undergo linear displacement; The distance measuring assembly includes a distance measuring component arranged on the first bearing seat, a first distance measuring clearance hole formed on the first bearing seat, and a second distance measuring clearance hole formed on the nozzle body, wherein the distance measuring component, the first distance measuring clearance hole, and the second distance measuring clearance hole are arranged in sequence from top to bottom, and the distance measuring component is arranged opposite to the first distance measuring clearance hole; The positioning assembly includes a transmitting end, a receiving end arranged opposite to the transmitting end, and a blocking portion directly or indirectly connected to the air guiding channel and moving synchronously with the air guiding channel; When the blocking portion is located between the transmitting end and the receiving end, the center line of the first distance measuring hole coincides with the center line of the second distance measuring hole.

9. The purging cleaning device according to claim 8, characterized in that: Before starting the purge, the distance between the nozzle body and the spinneret is controlled by the first driving component, the distance measuring component and the positioning component, thereby controlling the purge height; and / or, the distance measuring component is a laser distance measuring sensor; and / or, The first driving assembly comprises a driving component, an output end of which is directly or indirectly connected to the first bearing seat, thereby driving the first bearing seat to perform an upward or downward linear displacement; and / or, The second distance measuring holes have two symmetrically arranged holes and avoid the area where the airflow aperture is located.

10. The purging cleaning device according to claim 1, characterized in that: The purge cleaning device further includes a second driving assembly for driving the first purge assembly to rotate along its own axis, the second driving assembly including a transmission member sleeved on the air guide channel, a synchronous belt sleeved on the transmission member at one end, and a driving member whose output end is transmission-connected to the other end of the synchronous belt, and the driving member is arranged on the first bearing seat; and / or, The second purge assembly further includes a sealing gasket, which is arranged between the second bearing seat and the third bearing seat; and / or, The elastic member is a compression spring.

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