Air bellow for air laying
By designing a bellows for airflow mesh formation, the problem of uneven adhesive application was solved, achieving uniform distribution of adhesive in the glass fiber and improving the thermal insulation performance and production quality of the elastic felt.
Patent Information
- Application Number
- CN202423200389.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In the existing technology, the adhesive is not evenly distributed during the preparation of glass fiber cotton, resulting in uneven heat insulation area, difficulty in controlling the direction of the powder, and affecting the heat insulation effect of the elastic felt.
The airflow mesh-forming bellows, through front and rear material distribution structure, equal division cylinder, uniform distribution pipe, flow guiding and flushing structure and Venturi effect, achieve uniform powdering and distribution of adhesive, ensuring that the powder is uniformly covered in glass fiber.
This achieves uniform distribution of the adhesive in the glass fiber, improving the thermal insulation performance and production quality of the elastic felt.
Smart Images
Figure CN223592955U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a pneumatic laying equipment, in particular to a wind box for pneumatic laying. BACKGROUND
[0002] With the development needs of today's society, the application field of natural gas is also more and more extensive. At room temperature, the volume of LNG (liquefied natural gas) is only 1 / 625 of that in gaseous state, and it is stored in LNG low-temperature storage tank in liquefied form at a temperature of about -162℃. Elastic felt has outstanding advantages in LNG storage, which not only ensures the structural integrity and safety of the storage tank, but also improves its thermal insulation and fireproof performance, and adapts to extreme working environment. In order to improve the thermal insulation effect of elastic felt, a binder is added in the preparation process of glass fiber cotton to improve the thermal insulation effect of elastic felt.
[0003] The traditional binder laying structure adopts the scraping method of brush when laying. The binder is swept onto the guide plate by the brush, and then is scattered on the glass fiber to form a network after mixing with the glass fiber. Although it can achieve the purpose of adding binder to glass fiber and improving its thermal insulation strength, the falling is not uniform, which can easily lead to uneven thermal insulation area in the forming stage. The existing technology sets the whole material distributor on the structure moving horizontally, thereby improving the uniformity of material scattering. On the one hand, the moving material distributor is difficult to adapt to the glass fiber which is also in a moving state, which still leads to uneven material distribution. On the other hand, the moving material distributor is more difficult to control the direction, and the direction of the falling particles is difficult to control, so the powder cannot be accurately thrown between the two beaters, which leads to uneven mixing of the powder at the position of the beaters. SUMMARY
[0004] The utility model provides a wind box for pneumatic laying, which can uniformly drop the binder particles between the two beaters, and can make the falling speed of part of the powder faster, so as to form a speed difference in the powder falling speed, and the overall powder falling is more uniform, which can effectively solve the above problems.
[0005] The utility model is implemented as follows:
[0006] A wind box for pneumatic laying, comprising a pneumatic laying box, an internal powder scattering mechanism is arranged in the pneumatic laying box, and the powder scattering mechanism comprises:
[0007] The front and rear section material distribution structure, the upper end of the belt scale is provided with a mounting frame, the front and rear section material distribution structure contains a powder scattering cylinder arranged on the mounting frame, the powder scattering cylinder is divided into several chambers, all chambers of the powder scattering cylinder are connected to a transmission chamber, the transmission chamber is connected to a equalizing cylinder, the front and rear ends of the equalizing cylinder are provided with several equalizing pipes, the chambers of the powder scattering cylinder input particles to the transmission chamber, and the particles are evenly distributed to each equalizing pipe on the equalizing cylinder through the transmission chamber, so that all the equalizing pipes evenly scatter the particles on the glass fiber;
[0008] The flow guide and material flushing structure contains an arc-shaped material guide hopper arranged outside the equalizing pipe, both ends of the inside of the arc-shaped material guide hopper are provided with two powder guide chambers, the middle part of the arc-shaped material guide hopper is provided with a wind guide pipe, the end position of the wind guide pipe is connected to a dispersion piece arranged at the bottom end of the arc-shaped material guide hopper, the wind introduced into the wind guide pipe absorbs the powder in the powder guide chamber through the Venturi effect and disperses and flushes into the glass fiber through the dispersion piece.
[0009] As a further improvement, the equalizing cylinder is a cylinder structure, the equalizing cylinder contains a solid base, the upper part of the solid base is integrally formed with a material distribution shovel, the outside of the solid base is connected with a material distribution chamber, and the material distribution shovel divides the material distribution chamber into two chambers.
[0010] As a further improvement, the equalizing pipe contains a storage chamber connected with the solid base, the front end of the storage chamber is provided with a dosing piece, and the rear end of the storage chamber is connected with a cloth chamber pipe.
[0011] As a further improvement, the dosing piece contains a rotating shaft movably inserted into the storage chamber, the outside of the rotating shaft is connected with a turnover plate, the turnover plate is driven by a rotating motor arranged outside the storage chamber, and the rotating motor is provided with a time relay.
[0012] As a further improvement, the cloth chamber pipe is a V-shaped structure, the top end of the V-shaped structure communicates with the storage chamber, and the two openings of the storage chamber communicate with the powder guide chamber.
[0013] As a further improvement, the arc-shaped material guide hopper contains an outer extension plate connected with the top outer edge of the material distribution chamber, the lower part of the outer extension plate is connected with an arc-shaped surface, and both ends of the arc-shaped surface are connected with the material distribution chamber through two sealing plates.
[0014] As a further improvement, the arc-shaped surface is provided with a Venturi structure, the Venturi structure contains a flow-through section connected with the wind guide pipe and a converging section, the converging section communicates with the powder guide chamber, and when the introduced wind is input into the converging section through the flow-through section, part of the powder in the powder guide chamber is sucked and directly sprayed into the inside of the glass fiber.
[0015] As a further improvement, the dispersion device comprises a long frame connected to the powder guide cavity and the lower end of the arc-shaped material guide hopper, and a middle section inclined plate is arranged in the middle of the inner side of the long frame, and a lateral inclined plate is arranged on both sides of the middle section inclined plate and connected with the long frame.
[0016] The present application has the advantages that:
[0017] In the existing adhesive discharging structure, a brush is usually used to scrape the adhesive downward to realize uniform dispersion of the adhesive, but the adhesive is mostly in the form of powder, and the powder is easy to splash when scraped downward by the brush, resulting in loss and uneven distribution of the powder, therefore, the present application divides the whole powder scattering process into two sections by the front and rear section material distribution structure, and the powder is stored in the front and rear two equal distribution pipes after entering the powder scattering cylinder and the transmission cavity, and after the equal distribution pipes are filled with powder, the first scattering of the glass fiber is performed by the equal distribution pipe at the front end position, and the second scattering of the powder is performed by the equal distribution pipe at the rear end position, so that the uniformity of the powder scattering is ensured.
[0018] When the powder enters the equal distribution cylinder, it needs to be discharged in two directions, so the powder needs to be evenly divided into two parts, therefore, the equal distribution cylinder of the present application is provided with a material distribution shovel, which divides the powder falling in the middle into two parts, so that the equal distribution pipes at both ends can store enough powder, and the powder can be discharged multiple times to avoid the phenomenon of concentration in a certain area.
[0019] During the discharging process of the equal distribution pipe, the amount of powder scattering needs to be measured at all times, so the discharging amount of the equal distribution pipe in each area is fixed, therefore, the present application is provided with a quantitative element on each equal distribution pipe, which allows each equal distribution pipe to output a fixed amount of powder, so that the amount of powder in each area is fixed, thereby promoting uniform distribution of the adhesive in each area.
[0020] The quantified powder needs to be input into the flow guide material flushing structure, and in order to directly cooperate with the two powder guide cavities, the present application sets the cloth distribution cavity pipe into a V-shaped structure, which discharges the quantified powder into the flow guide material flushing structure by the middle bifurcation, so as to ensure that the powder can be segmented and cooperated with the glass fiber, and the powder is distributed more uniformly in the glass fiber.
[0021] The powder discharged from the two ends of the equal distribution pipe can make the powder realize secondary powdering and cover as evenly as possible, but is easy to splash in the air and has no fixed flow direction, and the powder after powdering can only float on the surface of the glass limit, resulting in poor thermal insulation performance of the formed elastic felt, therefore, the utility model sets the flow guide and material flushing structure on the basis of the front and rear section material distribution structure, the powder of the equal distribution pipe will enter the powder guide cavity at two ends to be naturally distributed, at the same time, the air inlet pipe will enter air, and the air will enter the arc-shaped material guide hopper to generate the Venturi effect to suck part of the powder in the powder guide cavity, so that part of the powder can be deeply inserted into the glass fiber, so that the adhesive of the glass fiber is more evenly distributed, and the production quality is improved.
[0022] Since the entire flow guide and material flushing structure needs to be ventilated and needs to distribute the powder material, the space in the entire flow guide and material flushing structure needs to be closed, therefore, the utility model first sets the arc-shaped material guide hopper as an arc-shaped surface to facilitate the material to be discharged, and the arc-shaped surface is closed at the outside and the top, and is closed by the outer extension plate and the sealing plate, so that the entire arc-shaped material guide hopper is closed and arranged, so that only the area at the bottom is discharged, so that a uniform falling surface can be formed to avoid overflow from the side direction.
[0023] In the process of the powder sliding down from the arc-shaped material guide hopper, it is divided into two sections of sliding, one section is the sliding of the powder guide cavity itself, and the other section is the accelerated sliding in the Venturi structure of the arc-shaped surface, and since the pipe diameter changes and is communicated with the powder guide cavity, part of the powder in the powder guide cavity can be sucked in, so that part of the powder is input between the two beaters in the form of high kinetic energy, and even in the air-laid box, on the basis that the adhesive itself is already distributed relatively evenly, it is more conducive to the formation of thick felt.
[0024] Whether the powder is powered or not, finally, it is output from the bottom of the arc-shaped material guide hopper, and in order to ensure uniformity, the dispersion piece at the bottom of the arc-shaped material guide hopper is divided into a middle section inclined piece and a lateral inclined piece, the middle section inclined piece corresponds to the position of the Venturi structure, so that the accelerated powder can pass out without hindrance, and the lateral inclined piece corresponds to the naturally falling powder in the powder guide cavity, so that the naturally falling powder is distributed more evenly under the guidance to form an even adhesive distribution surface. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, on the premise of not paying the creative labor, other related drawings can also be obtained according to these drawings.
[0026] Figure 1 is a structural schematic diagram of the utility model.
[0027] Figure 2 is a three-dimensional structural schematic diagram of the powder scattering mechanism of the utility model.
[0028] Figure 3 is a front view structural schematic diagram of the powder scattering mechanism of the utility model.
[0029] Figure 4 is an internal structural schematic diagram of the equal division cylinder of the utility model.
[0030] Figure 5 is a structural schematic diagram of the equal division pipe of the utility model.
[0031] Figure 6 is a structural schematic diagram of the flow guide material flushing structure of the utility model.
[0032] Figure 7 is a structural schematic diagram of the glass fiber elastic felt production line of the utility model DETAILED DESCRIPTION
[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0034] In the description of the utility model, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0035] Referring to Figures 1-7As shown, a kind of air-laid wind box is arranged in a glass fiber elastic felt production line, the glass fiber elastic felt production line includes a bale opener 10 for receiving cotton, the discharge end of the bale opener 10 is communicated with a opener 20, the opener 20 is connected to a large bin 30 by pipeline, the large bin 30 is communicated with secondary opener 40 by transmission belt, the secondary opener 40 is communicated to a vibrating cotton box 50 by pipeline, the cotton of the vibrating cotton box 50 is transported to a belt scale 60, the glass fiber after weighing of the belt scale 60 is transported to the air-laid wind box 80, the inside of the air-laid wind box 80 is provided with a powder spraying mechanism 70, the powder spraying mechanism 70 includes: front and rear section distribution structure 71, the upper end of the belt scale 60 is provided with a mounting bracket 61, the front and rear section distribution structure 71 includes a powder spraying cylinder 711 arranged on the mounting bracket 61, the powder spraying cylinder 711 is divided into several chambers, all chambers of the powder spraying cylinder 711 are connected to a transmission chamber 712, the transmission chamber 712 is connected to a equal division cylinder 713, the front and rear ends of the equal division cylinder 713 are both provided with several equal division pipes 714, the chambers on the powder spraying cylinder 711 input particles to the transmission chamber 712, and the particles are equally divided into each equal division pipe 714 on the equal division cylinder 713 through the transmission chamber 712, so that all the equal division pipes 714 evenly spray particles on the glass fiber;Flow guide and material flushing structure includes arc-shaped material guide hopper 721 arranged outside the equal division pipe 714, two powder guide chambers 722 are arranged at the inside of the two ends of the arc-shaped material guide hopper 721, the middle part of the arc-shaped material guide hopper 721 is provided with air guide pipe 723, the end position of the air guide pipe 723 is connected with a dispersion member 724 arranged at the bottom end of the arc-shaped material guide hopper 721, the wind passing through the air guide pipe 723 is sucked out from the powder guide chamber 722 by the Venturi effect and is dispersed and flushed into the glass fiber through the dispersion member 724.
[0036] In the embodiment, the glass fibers used are not a single type, but a mixture of two types of glass fibers. Both types of glass fibers are added to the bale opener 10, and after multiple processes, the elastic felt is obtained.
[0037] The binder and the powder mentioned in the embodiment are both phenolic resin, which is a commonly used binder. In this case, the binder is in powder form, and it will completely dissolve in the glass fibers during the heating stage after the thick felt is formed.
[0038] The bale opener 10, the opener 20, the large bin 30, the secondary opener 40, the vibrating cotton box 50, the belt scale 60, the air-laid wind box 80, the baking area 90, and the cutting mechanism 100 mentioned in the embodiment are all prior art, so they will not be described in detail, and there are no detailed enlarged views in the drawings.
[0039] In the existing adhesive discharging structure, the adhesive is usually scraped downward by a brush to realize uniform dispersion of the adhesive, but the adhesive is mostly in the form of powder, and the powder is easy to splash when scraped downward by the brush, resulting in loss and uneven distribution of the powder, therefore, the present application divides the whole powder scattering process into two stages by the front and rear section material distribution structure 71, and the powder is stored in the front and rear two equal distribution pipes 714 after entering the powder scattering cylinder 711 and the transmission cavity 712, and the first powder scattering is performed by the front end position equal distribution pipe 714 after the equal distribution pipe 714 is full of powder, and the glass fiber of the first powder scattering is at the left beater position of the airflow net box 80, and the powder of the second powder scattering is at the right beater position of the airflow net box 80 through the rear end equal distribution pipe 714, so as to ensure the uniformity of the powder scattering.
[0040] When the powder enters the equal division cylinder 713, the powder needs to be evenly divided into two parts because it needs to be discharged in two directions, therefore, the equal division cylinder 713 of the embodiment is a cylinder structure, the equal division cylinder 713 comprises a solid base 7131, the solid base 7131 is integrally formed with a material distribution shovel 7132 above, the solid base 7131 is connected with a material distribution cavity 7133 outside, the material distribution shovel 7132 divides the material distribution cavity 7133 into two chambers, the equal division cylinder 713 is provided with the material distribution shovel 7132, the powder falling in the middle is divided into two parts by the material distribution shovel 7132, so that the equal distribution pipe 714 at both ends can store enough powder, and the powder can be discharged multiple times to avoid the phenomenon of being concentrated in a certain area.
[0041] During the discharging process of the equal distribution pipe 714, the amount of powder needs to be measured at any time, so the discharging amount of the equal distribution pipe 714 in each area is fixed, therefore, the equal distribution pipe 714 of the embodiment comprises a storage cavity 7141 connected with the solid base 7131, the front end of the storage cavity 7141 is provided with a dosing device 7142, and the rear end of the storage cavity 7141 is connected with a cloth distribution cavity pipe 7143, each equal distribution pipe 714 is provided with the dosing device 7142, the dosing device 7142 allows each equal distribution pipe 714 to output a fixed amount of powder, so as to fix the amount of powder in each area, thereby promoting the uniform distribution of the adhesive in each area.
[0042] The quantitative piece 7142 is quantified according to the time of powder passing during quantification, specifically, the quantitative piece 7142 comprises a rotating shaft 71421 movably inserted in the storage cavity 7141, the rotating shaft 71421 is connected with a turnover plate 71422 on the outside, the turnover plate 71422 is driven by a rotating motor 71423 arranged outside the storage cavity 7141, the rotating motor 71423 is provided with a time relay, the time relay starts timing after each rotation of the rotating motor 71423, so that a fixed amount of powder can be released in a cycle, thereby realizing more accurate material control.
[0043] The quantified powder needs to be input into the flow guide flushing material structure, in order to directly cooperate with the two powder guide cavities 722, the material distribution cavity pipe 7143 of the embodiment is a V-shaped structure, the top end of the V-shaped structure is communicated with the storage cavity 7141, and the two openings of the storage cavity 7141 are communicated with the powder guide cavities 722, the material distribution cavity pipe 7143 is arranged in a V-shaped structure, the quantified powder is guided out into the flow guide flushing material structure through the bifurcated middle section, so that the powder can be segmented and cooperated with the glass fiber, and the powder is more evenly distributed in the glass fiber.
[0044] The powder discharged from the two-end distribution pipes 714 can realize secondary powder scattering and as evenly cover as possible, but is easy to splash in the air and fly around randomly without fixed flow direction, and the scattered powder can only float on the surface of the glass fiber, so that the elastic felt after forming has poor heat insulation performance, therefore, the utility model sets the flow guide flushing material structure on the basis of the front and rear section distribution structure 71, the powder of the distribution pipe 714 enters the powder guide cavities 722 from two ends and is naturally distributed, at the same time, the air inlet pipe 723 inhales air and enters the arc-shaped material guide hopper 721 to produce the Venturi effect to suck part of the powder in the powder guide cavities 722, so that part of the powder can be deeply inserted into the glass fiber, so that the adhesive of the glass fiber is more evenly distributed, thereby improving the production quality.
[0045] Since the whole flow guide and material flushing structure needs to be ventilated and the powder material needs to be distributed, the space in the whole flow guide and material flushing structure needs to be closed. Therefore, the arc-shaped material guide hopper 721 of the embodiment comprises an outer extension plate 7211 connected with the top outer edge of the material distribution cavity 7133. The lower side of the outer extension plate 7211 is connected with an arc-shaped surface 7212. The two ends of the arc-shaped surface 7212 are connected with the material distribution cavity 7133 through two sealing plates 7213. First, the arc-shaped material guide hopper 721 is arranged as the arc-shaped surface 7212, which facilitates the material to be discharged. The outer side and the top of the arc-shaped surface 7212 are closed. The arc-shaped material guide hopper 721 is closed through the outer extension plate 7211 and the sealing plates 7213, so that the arc-shaped material guide hopper 721 is arranged to be closed only from the bottom, thereby forming a uniform falling surface and avoiding overflow from the side.
[0046] In the process of the powder sliding down from the arc-shaped material guide hopper 721, a Venturi structure 7214 is arranged in the arc-shaped surface 7212. The Venturi structure 7214 comprises a flow-through section 72141 connected with the air guide pipe 723 and a converging section 72142. When the air input through the flow-through section 72141 into the converging section 72142, part of the powder in the powder guide cavity 722 is sucked and directly sprayed into the interior of the glass fiber. The powder is divided into two sections to slide down. One section is the sliding down of the powder guide cavity 722 itself, and the other section is the accelerated sliding down in the Venturi structure 7214 of the arc-shaped surface 7212. The air input through the air guide pipe 723 into the Venturi structure 7214 can suck part of the powder in the powder guide cavity 722 due to the change of the pipe diameter and the communication with the powder guide cavity 722, so that part of the powder is input between the two beaters in a high kinetic energy mode. Even in the air-laid box 80, on the basis that the binder is already distributed relatively uniformly, it is more conducive to the formation of thick felt.
[0047] Regardless of the powered powder or the unpowered powder, the powder is finally output from the bottom of the arc-shaped material guide hopper 721. In order to ensure uniformity, the dispersing member 724 comprises an elongated frame 7241 connected with the powder guide cavity 722 and the lower end of the arc-shaped material guide hopper 721. The middle part of the inner side of the elongated frame 7241 is provided with a middle inclined piece 7242. The two sides of the middle inclined piece 7242 are respectively provided with a lateral inclined piece 7243 connected with the elongated frame 7241. The dispersing member 724 at the bottom of the arc-shaped material guide hopper 721 is divided into the middle inclined piece 7242 and the lateral inclined piece 7243. The middle inclined piece 7242 corresponds to the position of the Venturi structure 7214, so that the accelerated powder can pass out without hindrance. The lateral inclined piece 7243 corresponds to the naturally falling powder in the powder guide cavity 722, so that the naturally falling powder is distributed more uniformly under the guidance, thereby forming a uniform binder distribution surface.
[0048] The utility model discloses another embodiment further discloses a glass fiber elastic felt production process, apply above -mentioned one air laying with bellows, contain following steps:
[0049] S1: the glass fiber of outsourcing is poured into the bale opener 10 and is opened, and the glass fiber after opening is passed into the opener 20 and is opened, and the glass fiber after opening is stored to the big storehouse 30;
[0050] S2: the glass fiber stored to the big storehouse 30 is gradually passed into the secondary opener 40, and the glass fiber after secondary opening is input to the vibration cotton box 50 through the air pipe and is stored;
[0051] S3: the conveyer belt in vibration cotton box 50 gradually feeds to the belt scale 60;
[0052] S4: the belt scale 60 adjusts the speed of delivery according to the feeding amount of vibration cotton box 50, and the glass fiber after scattering is fed into the air laying box 80, is scattered through the scattering mechanism 70 in the air laying box 80, and forms thick felt at the bottom of the air laying box 80;
[0053] S5: the thick felt of air laying box 80 one forming is delivered to the baking area 90, and the thick felt is clamped according to the required thickness, and the hot air of 170 DEG C-250 DEG C is circulated and guided in the chamber through the high pressure circulating fan, and is uniformly solidified 3-30min up and down, and is cut into products according to the requirement after solidification through cutting mechanism 100, and the product after cutting is rolled and packed.
[0054] The above only is preferred implementation manner of the utility model and does not limit the utility model, and for the technical personnel of the field, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made in the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A bellows for airflow mesh formation, characterized in that, The device includes an air-forming mesh box (80), and an internal powder-spreading mechanism (70) is provided inside the air-forming mesh box (80). The powder-spreading mechanism (70) includes: The front and rear material distribution structure (71) has a mounting frame (61) at the upper end of the belt scale (60). The front and rear material distribution structure (71) includes a powder spreading cylinder (711) on the mounting frame (61). The powder spreading cylinder (711) is divided into several chambers. All chambers of the powder spreading cylinder (711) are connected to a transmission chamber (712). The transmission chamber (712) is connected to a dividing cylinder (713). Several equal distribution pipes (714) are provided at both the front and rear ends of the equal distribution cylinder (713). The chambers on the powder spreading cylinder (711) input the particles into the transmission chamber (712) and distribute them evenly into each equal distribution pipe (714) on the equal distribution cylinder (713) through the transmission chamber (712), so that all the equal distribution pipes (714) evenly spread the particles on the glass fiber. The flow guiding and flushing structure includes an arc-shaped guide hopper (721) disposed on the outside of the equalizing pipe (714). Two powder guiding chambers (722) are provided at both ends of the inner side of the arc-shaped guide hopper (721). An air guide pipe (723) is provided in the middle of the arc-shaped guide hopper (721). A dispersing member (724) is connected to the end of the air guide pipe (723) at the bottom of the arc-shaped guide hopper (721). The air entering through the air guide pipe (723) draws out the powder in the powder guiding chamber (722) through the Venturi effect and disperses it into the glass fiber through the dispersing member (724).
2. The airflow forming bellows according to claim 1, characterized in that, The equal-dividing cylinder (713) is a cylindrical structure. The equal-dividing cylinder (713) includes a solid base (7131). A material-dividing shovel (7132) is integrally formed on the top of the solid base (7131). A material-dividing cavity (7133) is connected to the outside of the solid base (7131). The material-dividing shovel (7132) divides the material-dividing cavity (7133) into front and rear chambers.
3. The airflow mesh forming bellows according to claim 1, characterized in that, The equal distribution pipe (714) includes a storage cavity (7141) connected to a solid base (7131). A quantity element (7142) is provided at the front end of the storage cavity (7141), and a fabric distribution cavity pipe (7143) is connected to the rear end of the storage cavity (7141).
4. The airflow mesh forming bellows according to claim 3, characterized in that, The metering component (7142) includes a rotating shaft (71421) that is movably inserted into the storage cavity (7141). A flip plate (71422) is connected to the outside of the rotating shaft (71421). The flip plate (71422) is driven by a rotating motor (71423) located outside the storage cavity (7141). A time relay is provided on the rotating motor (71423).
5. A bellows for airflow mesh formation according to claim 3, characterized in that, The fabric cavity tube (7143) has a V-shaped structure. The top of the V-shaped structure is connected to the storage cavity (7141), and the two openings of the storage cavity (7141) are connected to the powder guiding cavity (722).
6. The airflow mesh forming bellows according to claim 1, characterized in that, The arc-shaped guide hopper (721) includes an outer extension plate (7211) connected to the outer edge of the top of the distribution chamber (7133). An arc-shaped surface (7212) is connected to the bottom of the outer extension plate (7211). The two ends of the arc-shaped surface (7212) are connected to the distribution chamber (7133) through two sealing plates (7213).
7. A bellows for airflow mesh formation according to claim 6, characterized in that, A Venturi structure (7214) is provided inside the arc-shaped surface (7212). The Venturi structure (7214) includes a flow section (72141) connected to the air duct (723) and a constriction section (72142). The constriction section (72142) is connected to the powder guiding cavity (722). When the air is introduced through the flow section (72141) and enters the constriction section (72142), it will suck in some of the powder in the powder guiding cavity (722) and spray it directly into the interior of the glass fiber.
8. A bellows for airflow mesh formation according to claim 1, characterized in that, The dispersing component (724) includes a long frame (7241) connected to the powder guiding cavity (722) and the lower end of the arc-shaped guide hopper (721). A middle section inclined plate (7242) is provided in the middle of the inner side of the long frame (7241), and lateral inclined plates (7243) connected to the long frame (7241) are respectively provided on both sides of the middle section inclined plate (7242).