Post-treatment device for non-woven fabric production

Abstract

The invention relates to the field of non-woven fabric production machinery, in particular to a post-treatment device for non-woven fabric production. The guide roller assembly at least comprises two first guide rollers, and at least part of the non-woven fabric is flatly spread between the two first guide rollers to form a dust removal section; the first dust removal assembly is arranged on one side of the dust removal section, and the first dust removal assembly comprises a scraping plate, a spray head and a reset piece; the scraping plate is hinged in the dust removal space; the spray head is arranged on the side, away from the dust removal section, of the scraping plate and used for blowing air to the scraping plate, and the scraping plate overcomes the reset force of the reset piece to turn over to the dust removal section under the blowing action of the spray head; the reset piece is used for driving the scraper blade to reset when the nozzle stops blowing so as to separate the dust removal end from the dust removal section; the non-woven fabric is dedusted in the mode that the scraping plate is matched with the spray head to discharge air, so that the spray head can purge the non-woven fabric, and the non-woven fabric can be scraped through the scraping plate.

Description

Technical Field

[0001] This application relates to the field of non-woven fabric production machinery, and particularly to a post-treatment device for non-woven fabric production. Background Art

[0002] Non-woven fabric, also known as non-woven material, non-woven cloth, or non-woven fabric, is made by arranging fibers in a directional or random manner through friction, interlocking, adhesion, or a combination of these methods.

[0003] After the production of non-woven fabric, there are usually some post-treatment steps, such as dust removal treatment for the non-woven fabric to remove dust, fluff, etc. attached to the surface of the non-woven fabric. The commonly used dust removal method at present is the blowing method, that is, using a nozzle to blow air towards the non-woven fabric to blow off the dust on the surface of the non-woven fabric; however, this blowing method has a general dust removal effect and is difficult to remove some stubborn dust attached to the non-woven fabric, so there is still room for improvement. Summary of the Invention

[0004] In order to solve at least one technical problem mentioned in the background art, the purpose of this application is to provide a post-treatment device for non-woven fabric production.

[0005] To achieve the above purpose, this application provides the following technical solutions.

[0006] A post-treatment device for non-woven fabric production, comprising: A dust removal space; A guide roller assembly, which at least includes two first guide rollers, and at least part of the non-woven fabric is laid flat between the two first guide rollers to form a dust removal section; the dust removal section is located in the dust removal space; At least one set of first dust removal components, the first dust removal components are arranged on one side of the dust removal section, and each first dust removal component includes a scraper, a nozzle, and a reset component; the scraper includes a dust scraping end, and the scraper is hinged in the dust removal space; the nozzle is arranged on the side of the scraper away from the dust removal section for blowing air towards the scraper, and under the blowing action of the nozzle, the scraper overcomes the reset force of the reset component and flips towards the dust removal section so that the dust scraping end abuts against the surface of the dust removal section; the reset component is used to drive the scraper to reset when the nozzle stops blowing air so that the dust scraping end disengages from the dust removal section.

[0007] Compared with the prior art, the advantages of adopting this solution are as follows: In this solution, the non-woven fabric is dusted by the cooperation of the scraper and the air outlet of the nozzle. Not only can the nozzle blow the non-woven fabric, but also the scraper can scrape the non-woven fabric. Thus, under the scraping of the scraper, some stubbornly attached dust can also be scraped off.

[0008] In addition, the jet of the nozzle in this solution can not only blow the non-woven fabric, but also provide driving force for the scraper so that the dust removal end of the scraper can contact the non-woven fabric. The advantage of this method is that when the nozzle stops blowing, the scraper is equivalent to releasing the driving force, so that the scraper will automatically reset under the action of the reset member; that is, the action of the scraper can be automatically performed according to whether the nozzle is working or not; when the nozzle stops working, the scraper resets so that the scraper flips to the side away from the non-woven fabric; when the nozzle is working, the scraper starts working to contact the non-woven fabric.

[0009] In addition, the nozzle sprays air toward the scraper, which has another function. Normally, when the scraper is cleaning the fabric, the dust scraped off will be concentrated at the dust removal end of the scraper. In this way, when the nozzle sprays air toward the scraper, this part of the concentrated dust can be blown away, thereby avoiding a large amount of dust from gathering at the dust removal end of the scraper.

[0010] As an optional implementation of the present application, two groups of the first dust removal components are provided, and the two groups of first dust removal components are symmetrically arranged on both sides of the dust removal section to respectively remove dust from both sides of the dust removal section.

[0011] As an optional embodiment of the present application, the dust removal section is transported forward along a first direction. When the dust removal end abuts against the dust removal section, an angle α is formed between the scraper and the first direction, and 90°<angle α<180°; an angle β is formed between the jet direction of the nozzle and the first direction, and 0°<angle β<90°.

[0012] As an optional implementation of the present application, the device also includes a beating mechanism for beating the dust removal section.

[0013] As an optional embodiment of the present application, the flapping mechanism includes a jet pipe and a flapping component for flapping the dust removal section; the jet pipe is connected to the dust removal space by rotating around a first axis; the first axis is perpendicular to the conveying direction of the dust removal section; the flapping mechanism is fixed to the jet pipe; the jet pipe is provided with one or more groups of nozzle assemblies arranged in sequence along the axial direction of the jet pipe; the nozzle assembly includes one or more nozzles connected to the jet pipe; the nozzle is arranged at an angle, and the nozzle is constructed so that when the nozzle sprays, the jet pipe is pushed to rotate around the first axis under the action of the recoil force of the jet.

[0014] As an optional embodiment of the present application, the guide roller assembly also includes two second guide rollers arranged side by side, and along the conveying direction of the dust removal section, the two second guide rollers are located between the two first guide rollers, and the dust removal section passes between the two second guide rollers; the dust removal section is divided into a first dust removal section and a second dust removal section by the second guide roller; the flapping mechanism and the first dust removal assembly, one of which acts on the first dust removal section, and the other acts on the second dust removal section.

[0015] As an alternative embodiment of the present application, the device further includes a second dust removal assembly; along the conveying direction of the dust removal section, the second dust removal assembly is downstream of the flapping mechanism; the second dust removal assembly includes two suction hoods capable of extracting air; the two suction hoods are respectively located on both sides of the dust removal section and their suction ends face the dust removal section.

[0016] As an alternative embodiment of the present application, a partition is further provided in the dust removal space, and the dust removal space is divided into a first space and a second space by the partition; the two first guide rollers are respectively located in the first space and the second space; a through opening for the dust removal section to pass through is provided on the partition.

[0017] As an alternative embodiment of the present application, the guide roller assembly further includes two third guide rollers arranged side by side at the through opening; the dust removal section passes between the two third guide rollers.

[0018] As an alternative embodiment of the present application, the device includes a box body, and the internal space of the box body constitutes the dust removal space.

[0019] Other advantages and effects of the present application are specifically explained in the specific implementation manner and the drawing part.

[0020] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become easily understood through the following description. Description of the Drawings

[0021] By referring to the drawings and reading the following detailed description, the above and other objects, features, and advantages of the exemplary embodiments of the present application will become easily understood. In the drawings, several embodiments of the present application are shown in an exemplary rather than restrictive manner, wherein: In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0022] Figure 1 Shows the structural schematic diagram of the present application; Figure 2 Shows Figure 1 The enlarged view of part A in Figure 3 Shows the structural schematic diagram in the state where the scraper is reset to the initial position; Figure 4 Shows the structural schematic diagram in the state where the flapping mechanism contacts the second dust removal section; Figure 5 Shows the radial cross-sectional view of the flapping mechanism; Figure 6 Shows the structural schematic diagram of the flapping mechanism.

[0023] Description of reference numerals in the figure: L1, the first direction; M, the dust removal section; M1, the first dust removal section; M2, the second dust removal section; 1, the box body; 100, the dust removal space; 11, the first space; 12, the second space; 13, the partition; 2, the guide roller assembly; 21, the first guide roller; 22, the second guide roller; 23, the third guide roller; 3, the first dust removal assembly; 31, the scraper; 311, the dust removal end; 32, the nozzle; 33, the first limit block; 34, the second limit block; 35, the torsion spring; 4, the flapping mechanism; 41, the air injection pipe; 42, the nozzle assembly; 421, the nozzle; 43, the rod body; 44, the rotary joint; 5, the second dust removal assembly; 51, the dust suction hood; 61, the first blower; 62, the second blower; 63, the exhaust fan. Detailed implementation manners

[0024] To make the objectives, features, and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0025] Refer to Figures 1-6 As shown, this embodiment provides a post-treatment device for non-woven fabric production, mainly used for dust removal treatment of non-woven fabric. This device mainly includes a box body 1, a guide roller assembly 2, a first dust removal assembly 3, a flapping mechanism, a second dust removal assembly 5, etc. The following is a specific description of each component.

[0026] As Figure 1 As shown, the inside of the box body 1 is hollow to form a dust removal space 100, that is, the dust removal treatment process of the non-woven fabric is carried out in the dust removal space 100. Among them, one side of the box body 1 is provided with a feed port, and the other side has a discharge port. The non-woven fabric enters the dust removal space 100 from the feed port and is led out from the discharge port.

[0027] The guide roller assembly 2 is mainly used to provide guide rollers for guiding the non-woven fabric during transportation; the guide roller assembly 2 includes two first guide rollers 21, and at least part of the non-woven fabric is laid flat between the two first guide rollers 21 to form a dust removal section M, and the dust removal section M is located in the dust removal space 100. The conveying direction of the dust removal section M is vertical. Specifically, it can be conveyed forward vertically from top to bottom.

[0028] In some embodiments, the two first guide rollers 21 are distributed at intervals in the vertical direction, and the non-woven fabric part is laid out flat in the vertical direction between the two first guide rollers 21 to form a dust removal section M. The following description will be made with this example as a specific illustration. The vertical direction claimed in this embodiment can also be understood as the height direction of the box body 1.

[0029] The first dust removal assembly 3 is used to remove dust from the dust removal section M during the advancement of the non-woven fabric; the first dust removal assembly 3 can be set in one group or multiple groups. Preferably, as Figure 2 and Figure 3 shown, two groups of the first dust removal assemblies 3 are provided, and the two groups of the first dust removal assemblies 3 are symmetrically arranged on both sides of the dust removal section M to remove dust from both sides of the dust removal section M respectively.

[0030] Since the structures of the two groups of the first dust removal assemblies 3 are basically the same, for the convenience of description, one of them will be taken as an example for specific illustration in this embodiment.

[0031] As Figure 2 shown, the first dust removal assembly 3 is arranged on one side of the dust removal section M. Taking the first dust removal assembly 3 on the right side as an example, this first dust removal assembly 3 is provided on the right side of the dust removal section M and is used to handle the dust on the right surface of the non-woven fabric.

[0032] The first dust removal assembly 3 includes a scraper 31, a spray head 32 and a reset member.

[0033] In this embodiment, as Figure 2 and Figure 3 shown, the scraper 31 extends along the width direction of the non-woven fabric; one end of the scraper 31 forms a dust removal end 311 for abutting against the dust removal section M to scrape the dust removal section M, and the other end forms a hinge end, which is hinged in the dust removal space 100. Specifically, the hinge end of the scraper 31 is hinged on the side wall of the box body 1. The rotation axis of the scraper 31 is parallel to the width direction of the non-woven fabric. In some embodiments, the dust removal end 311 of the scraper 31 can be made of polished hard metal material, such as aluminum, etc., or some plastic, rubber and other materials, and no specific limitation is made here.

[0034] The spray head 32 is arranged on the side of the scraper 31 away from the dust removal section M and is used to blow air towards the scraper 31. It should be noted that the spray head 32 can be one or multiple. When multiple spray heads 32 are used, the multiple spray heads 32 are distributed in sequence along the width direction of the dust removal section M, or the length direction of the scraper 31; among them, as Figure 1As shown, the nozzle 32 is provided with an air source by the first blower 61. Specifically, the air outlet end of the first blower 61 is communicated with the nozzle 32, and the first blower 61 blows air to generate an air flow. The air flow is ejected from the nozzle 32 (i.e., blows air) and acts on the scraper 31. Under the blowing action of the nozzle 32, the scraper 31 overcomes the restoring force of the restoring member and flips towards the dust removal section M, so that the dust removal end 311 abuts against the surface of the dust removal section M. Refer to Figure 2 the state shown.

[0035] The restoring member is used to drive the scraper 31 to reset when the nozzle 32 stops blowing air, so that the dust removal end 311 is separated from the dust removal section M. For example, the restoring member can be a spring, and specifically, a torsion spring 35 can be used, which is arranged at the hinged end of the scraper 31, and the torsion of the torsion spring 35 is used as the restoring force to drive the scraper 31 to reset.

[0036] As Figure 3 shown, when the scraper 31 resets to the initial position, the dust removal section M of the scraper 31 is spaced from the dust removal section M, that is, it is separated from the dust removal section M.

[0037] In order to limit the scraper 31, a first limit block 33 and a second limit block 34 are respectively arranged on both sides of the scraper 31. The function of the first limit block 33 is to limit the maximum angle of the scraper 31 flipping away from the dust removal section M. That is, as Figure 3 shown, when the scraper 31 abuts against the first limit block 33, the scraper 31 is in the initial position, and at this time, the dust removal end 311 of the scraper 31 is far from the first dust removal section M1; The function of the second limit block 34 is to limit the maximum angle of the scraper 31 flipping towards the dust removal section M. That is, as Figure 2 shown, when the scraper 31 abuts against the second limit block 34, the scraper 31 just abuts against the surface of the dust removal section M, or slightly presses the dust removal section M.

[0038] By using the method of the scraper 31 cooperating with the air outlet of the nozzle 32 to remove dust from the non-woven fabric, not only can the nozzle 32 blow the non-woven fabric, but also the scraper 31 can scrape the non-woven fabric. Thus, under the scraping of the scraper 31, some stubbornly attached dust can also be scraped off.

[0039] In addition, the nozzle 32 in this solution has three functions: First, it can blow the non-woven fabric; Secondly, a driving force is provided for the scraper 31 so that the dust removal end 311 of the scraper 31 can contact the non-woven fabric. The advantage of this method is that when the nozzle 32 stops blowing, the scraper 31 is equivalent to releasing the driving force, so that the scraper 31 will automatically reset under the action of the reset member; that is, the action of the scraper 31 can be automatically performed according to whether the nozzle 32 is working or not; when the nozzle 32 stops working, the scraper 31 is reset so that the scraper 31 flips to the side away from the non-woven fabric to return to the initial position, so as to make it easier to create a gap between the dust removal ends 311 of the two scrapers 31 for the non-woven fabric to pass through. When the nozzle 32 is working, the scraper 31 is driven to start working to contact the non-woven fabric and perform the dust scraping action.

[0040] Third, normally, when the scraper 31 is scraping the fabric, the scraped dust will be concentrated at the dust removal end 311 of the scraper 31. In this way, when the nozzle 32 sprays toward the scraper 31, this part of the concentrated dust can be blown away, thereby avoiding a large amount of dust from gathering at the dust removal end 311 of the scraper 31.

[0041] The dust removal section M is transported forward along a first direction L1, where the first direction L1 can be understood as a vertical direction; Figure 2 As shown, when the dust removal end 311 abuts against the dust removal section M, an angle α is formed between the scraper 31 and the first direction L1, 90°<angle α<180°, for example 120°; an angle β is formed between the jet direction of the nozzle 32 and the first direction L1, 0°<angle β<90°, for example 60°.

[0042] Through the above arrangement, the scraper 31 can be tilted upward, and the nozzle 32 can also be tilted upward; as the dust removal section M is transported from top to bottom, the airflow ejected from the nozzle 32 can be blown along the scraper 31 to the dust removal end 311 of the scraper 31, thereby blowing away the dust concentrated at the dust removal end 311, thereby avoiding a large amount of dust from gathering at the dust removal end 311 of the scraper 31.

[0043] In some embodiments, such as Figure 1 As shown, this embodiment further includes a beating mechanism 4 for beating the dust removal section M. By beating the dust removal section M, part of the dust attached to the dust removal section M can be shaken off.

[0044] Combination Figure 6 As shown, the beating mechanism 4 includes an air jet pipe 41 and a beating component for beating the dust removal section M; the air jet pipe 41 is rotatably connected around a first axis in the dust removal space 100; the first axis is perpendicular to the conveying direction of the dust removal section M, and it can also be understood that the first axis is parallel to the width direction of the non-woven fabric; specifically, the air jet pipe 41 is rotatably connected to the box body 1 through a bearing so that the air jet pipe 41 can rotate.

[0045] likeFigure 1 As shown, the air jet pipe 41 is supplied with air source by the second blower 62. Specifically, as Figure 6 shown, in order to ensure that the air jet pipe 41 can rotate and discharge air normally, one end of the air jet pipe 41 is closed, and the other end is connected to the air outlet end of the second blower 62 through a rotary joint 44.

[0046] Combined with Figure 6 shown, one or more groups of nozzle assemblies 42 are arranged in sequence along the axial direction of the air jet pipe 41 on the air jet pipe 41; preferably, multiple groups of nozzle assemblies 42 are arranged and are arranged on the air jet pipe 41 in sequence along the axial direction of the air jet pipe 41.

[0047] The structures of the nozzle assemblies 42 are basically the same, so one of them is taken as an example for illustration in this embodiment; the nozzle assembly 42 includes one or more nozzles 421 communicated with the air jet pipe 41; for example, as Figure 5 shown, multiple nozzles 421 can be arranged, and are distributed on the air jet pipe 41 in a circumferential array centered on the axis of the air jet pipe 41.

[0048] The nozzles 421 are inclined, and the jetting direction of the nozzles 421 is configured such that when the nozzles 421 jet air, under the action of the recoil force of the jet air, the air jet pipe 41 is pushed to rotate around the first axis.

[0049] Among them, the flapping member is fixed to the air jet pipe 41; in some embodiments, the flapping member adopts a circular rod 43, which is fixed on the air jet pipe 41 and is parallel to the air jet pipe 41; one or more rods 43 can be arranged, for example, in this embodiment, the case of adopting 2 rods 43 is shown, and the two rods 43 are symmetrically arranged on both sides of the air jet pipe 41.

[0050] The distance between the rod 43 and the air jet pipe 41 is greater than the distance between the air jet pipe 41 and the dust removal section M, as Figure 4 shown, so as to ensure that the rod 43 can touch the second dust removal section M2; for example, the distance between the rod 43 and the air jet pipe 41 is 5 cm - 20 cm greater than the distance between the air jet pipe 41 and the dust removal section M, for example, 8 cm, 10 cm; when the second blower 62 blows air into the air jet pipe 41, the air flow in the air jet pipe 41 will be ejected from each nozzle 421. When the nozzle 421 ejects the air flow, a certain recoil force will be generated. Under the action of this recoil force, the air jet pipe 41 will be pushed to rotate self - rotatably, and then drive the rod 43 to rotate. When the rod 43 rotates to the position of the dust removal section M, it will flap the dust removal section M. In this way, by continuously flapping the dust removal section M with the rod 43, the attached dust can be slapped off; and when the nozzle 421 faces the dust removal section M, the air flow ejected by it will blow to the surface of the dust removal section M, and cooperating with the flapping of the rod 43, the dust can be dispersed.

[0051] When the flapping member is at the dust removal section M, the dust removal section M will tilt, as Figure 4 shown; this will prevent the scraper 31 from scraping the dust removal section M. Therefore, in this embodiment, the guide roller assembly 2 further includes two second guide rollers 22 arranged side by side. Along the conveying direction of the dust removal section M, the two second guide rollers 22 are located between the two first guide rollers 21, and the dust removal section M passes through between the two second guide rollers 22; the dust removal section M is divided into a first dust removal section M1 and a second dust removal section M2 with the second guide rollers 22 as the boundary; the first dust removal section M1 is on the upper side, and the second dust removal section M2 is on the lower side; specifically, the part of the dust removal section M between the first guide roller 21 and the second guide roller 22 on the upper side constitutes the first dust removal section M1; the part of the dust removal section M between the first guide roller 21 and the second guide roller 22 on the lower side constitutes the second dust removal section M2.

[0052] As Figure 3 shown, under the guidance of the first guide roller 21 and the second guide roller 22 on the upper side, the first dust removal section M1 is always substantially in a vertical state; the first dust removal assembly 3 is arranged at the position of the first dust removal section M1 for dust removal of the first dust removal section M1; and the flapping mechanism is at the position of the second dust removal section M2 for flapping dust removal of the second dust removal section M2; thus, even if the flapping mechanism flaps the second dust removal section M2, the first dust removal section M1 still conveys downward in a vertical state, so as to ensure that the scraper 31 can normally scrape the first dust removal section M1.

[0053] In addition, in order to prevent the dust flapped off from falling back onto the fabric output from the first guide roller 21 on the lower side, as Figure 1 shown, a partition 13 is further provided in the dust removal space 100. The dust removal space 100 is divided into a first space 11 on the upper side and a second space 12 on the lower side by the partition 13. The first guide roller 21 on the upper side is located in the first space 11, and the first guide roller 21 on the lower side is located in the second space 12; a through port for the dust removal section M to pass through is opened on the partition 13, that is, the non-woven fabric passes through the through port and then bypasses the first guide roller 21 on the lower side.

[0054] To prevent the fabric from scraping against the peripheral wall of the through port in the through port, in this embodiment, the guide roller assembly 2 further includes two third guide rollers 23 arranged side by side at the through port; the dust removal section M passes between the two third guide rollers 23, and the two third guide rollers 23 guide the fabric to pass through the through port.

[0055] In order to further dust the dust removal section M, in some embodiments, as Figure 1 shown, the device further includes a second dust removal assembly 5; along the conveying direction of the dust removal section M, the second dust removal assembly 5 is downstream of the flapping mechanism; specifically, the second dust removal assembly 5 is on the lower side of the flapping mechanism.

[0056] The second dust removal component 5 includes two suction hoods 51 capable of pumping air; the two suction hoods 51 are respectively located on both sides of the dust removal section M and their suction ends face the dust removal section M, that is, the side of the suction hood 51 facing the dust removal section M is the suction end. The suction hood is provided with a suction force by the exhaust fan 63, that is, the suction hood 51 is connected to the exhaust end of the exhaust fan 63 through a pipeline. In this way, when the exhaust fan 63 sucks, it will cause the suction hood 51 to generate a suction force to suck off the dust attached to the fabric and part of the dust knocked off by the beating component.

[0057] It should be understood that various forms of processes shown above can be used, steps can be reordered, added or deleted. For example, the steps described in this application can be executed in parallel, sequentially or in a different order, as long as the desired results of the technical solutions disclosed in this application can be achieved, and no limitations are imposed herein.

[0058] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality" means two or more unless otherwise specifically defined.

[0059] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed in this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claimed rights.

Claims

1. A post-treatment device for non-woven fabric production, characterized in that, Comprising: A dust removal space; A guide roller assembly, which at least includes two first guide rollers, and at least part of the non-woven fabric is laid flat between the two first guide rollers to form a dust removal section; The dust removal section is located within the dust removal space; At least one set of first dust removal components, the first dust removal components are arranged on one side of the dust removal section, and the first dust removal components include a scraper, a nozzle, and a reset component; the scraper includes a dust scraping end, and the scraper is hinged within the dust removal space; the nozzle is arranged on the side of the scraper away from the dust removal section for blowing air towards the scraper, and under the blowing action of the nozzle, the scraper overcomes the reset force of the reset component and flips towards the dust removal section so that the dust scraping end abuts against the surface of the dust removal section; the reset component is used to drive the scraper to reset when the nozzle stops blowing air so that the dust scraping end disengages from the dust removal section.

2. The post-treatment device for non-woven fabric production according to claim 1, characterized in that There are two sets of the first dust removal components, and the two sets of first dust removal components are symmetrically arranged on both sides of the dust removal section to respectively remove dust from both sides of the dust removal section.

3. The post-treatment device for non-woven fabric production according to claim 1, wherein, The dust removal section is conveyed forward in the first direction. When the dust scraping end abuts against the dust removal section, an angle α is formed between the scraper and the first direction, 90° < angle α < 180°; an angle β is formed between the jetting direction of the nozzle and the first direction, 0° < angle β < 90°.

4. The post-treatment device for non-woven fabric production according to claim 1, characterized in that, The device further includes a beating mechanism for beating the dust removal section.

5. The post-treatment device for non-woven fabric production according to claim 4, characterized in that, The beating mechanism includes a jet pipe and a beating component for beating the dust removal section; the jet pipe is rotatably connected within the dust removal space around a first axis; the first axis is perpendicular to the conveying direction of the dust removal section; the beating component is fixed to the jet pipe; one or more groups of nozzle assemblies are arranged on the jet pipe in sequence along the axial direction of the jet pipe; the nozzle assembly includes one or more nozzles communicated with the jet pipe; the nozzles are inclined, and the nozzles are configured such that when the nozzles jet air, under the reaction force of the jet air, the jet pipe is pushed to rotate around the first axis.

6. The post-treatment device for non-woven fabric production according to claim 4 or 5, characterized in that The guide roller assembly further includes two second guide rollers arranged side by side. Along the conveying direction of the dust removal section, the two second guide rollers are located between the two first guide rollers, and the dust removal section passes through between the two second guide rollers; the dust removal section is divided into a first dust removal section and a second dust removal section with the second guide rollers as the boundary; one of the beating mechanism and the first dust removal components acts on the first dust removal section, and the other acts on the second dust removal section.

7. The post-treatment device for non-woven fabric production according to claim 4 or 5, characterized in that, The device further includes a second dust removal component; along the conveying direction of the dust removal section, the second dust removal component is located downstream of the beating mechanism; the second dust removal component includes two suction hoods capable of exhausting air; the two suction hoods are respectively located on both sides of the dust removal section and their suction ends face the dust removal section.

8. The post-treatment device for non-woven fabric production according to claim 7, characterized in that, A partition is further provided within the dust removal space, and the dust removal space is divided into a first space and a second space by the partition; the two first guide rollers are respectively located in the first space and the second space; a through opening for the dust removal section to pass through is formed on the partition.

9. The post-treatment device for non-woven fabric production according to claim 8, wherein, The guide roller assembly further includes two third guide rollers arranged side by side at the through opening; the dust removal section passes between the two third guide rollers.

10. The post-treatment device for non-woven fabric production according to claim 1, characterized in that, The device includes a box body, and the internal space of the box body constitutes the dust removal space.

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