High-performance glass fiber drawing equipment

Abstract

The invention belongs to the field of centrifugal devices, and particularly relates to high-performance glass fiber drawing equipment which comprises a barrel, a centrifugal cylinder is arranged in the center of the barrel, an opening is formed in the top of the centrifugal cylinder, a main shaft connected to the bottom of the cylinder is arranged in the center of the centrifugal cylinder, and the main shaft can be driven by a centrifugal driving device to rotate; a plurality of wire drawing nozzles are distributed on the cylinder wall of the centrifugal cylinder, the cylinder wall is in an inclined wave shape, the wave trough is a slag accumulation channel, and the wire drawing nozzles are distributed at the wave crest; a discharge spout is arranged in the center of the bottom of the cylinder body; a circle of glass fiber cooling impeller is arranged outside the cylinder body above the wire drawing area of the wire drawing nozzle; a plurality of blanking conveying belts with negative pressure adsorption functions on the surfaces are densely distributed on the inner wall of the cylinder body, and all the blanking conveying belts are vertically arranged and are consistent in running linear speed. According to the invention, the centrifugal effect generated by high-speed rotation of the centrifugal cylinder is utilized, so that impurity removal is carried out while wire drawing is carried out, and temperature attenuation generated when molten glass flows through a long-distance passage is avoided, so that additional heating energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the wire drawing and forming of glass fibers, and particularly to a high-performance glass fiber wire drawing device. Background Art

[0002] With the increase in the power of wind turbines and the popularization of offshore wind power and low-wind-speed large-blade turbines, the blade size has been continuously broken through. Larger-sized blades pose higher requirements for material properties: it is necessary to significantly increase the modulus while reducing the proportion of fabric weight. Although carbon fiber has better comprehensive performance, its high cost restricts large-scale application. Therefore, the wind power industry has turned to the research and development of high-performance glass fiber fabrics to achieve a balance between blade enlargement and economy through breakthroughs in material properties.

[0003] Impurity removal during the glass fiber forming process is very crucial. Currently, the commonly used production process for glass fibers is the tank drawing process, that is, the batch material is heated at high temperature in a furnace to form a uniform glass melt. The molten glass melt passes through the main channel (i.e., the tank) for clarification and impurity removal, and then flows into the trough. Under the action of gravity, it flows out from a multi-row porous platinum nozzle plate to draw fibers, and finally is wound into a twisted yarn bobbin or an untwisted yarn bobbin by a rotating winder. During this process, due to the relatively long "tank", the glass melt will experience a large temperature decay during impurity removal through the "tank". Therefore, the glass melt will be heated to a super temperature in the furnace before the tank to offset the temperature decay during passing through the tank to meet the final wire drawing temperature; or during wire drawing, the glass melt is electrically heated again through a platinum-rhodium wire drawing nozzle to meet the final wire drawing temperature. This will result in a large amount of energy consumption. The glass melting furnace is the most energy-consuming thermal equipment in the factory, generally accounting for about 80% of the total plant energy consumption.

[0004] In addition, in the gravity wire drawing in the prior art, the pressure is low, and the drawn glass fiber material does not have better toughness and is prone to breakage, which will increase the rejection rate of the glass fiber products for wind turbine blades. Summary of the Invention

[0005] According to the above deficiencies in the prior art, the technical problem to be solved by the present invention is: to provide a high-performance glass fiber wire drawing device to reduce the energy consumption in glass fiber production and improve the toughness of glass fiber products.

[0006] The high-performance glass fiber drawing equipment described in the present invention includes a vertically arranged cylinder with upper and lower openings. At the central position inside the cylinder, there is a centrifugal cylinder with an opening at the top. A main shaft connected to the bottom of the cylinder body is provided at the center of the centrifugal cylinder, and the main shaft can be driven by a centrifugal driving device to rotate. A number of drawing nozzles are arranged on the cylinder wall of the centrifugal cylinder. The cylinder wall is an inclined wavy shape, and the trough is a slag accumulation channel. The drawing nozzles are arranged at the wave crests. The bottom of the cylinder body is funnel-shaped, and a leakage nozzle is provided at the center of the bottom of the cylinder body. Outside the cylinder body above the drawing area where the drawing nozzles are located, there is a ring of glass fiber cooling impellers. The inner wall of the cylinder is densely covered with a number of blanking conveyor belts with a negative pressure adsorption function on the surface. All the blanking conveyor belts are vertically arranged and have the same running linear speed.

[0007] Among them, raised built-in nozzles are provided on the inner wall of the centrifugal cylinder. The built-in nozzles are communicated with the drawing nozzles, and the built-in nozzles correspond to the drawing nozzles one by one.

[0008] The molten glass liquid in the glass kiln flows into the centrifugal cylinder through the material channel. Under the centrifugal action of the high-speed rotation of the centrifugal cylinder, the particulate impurities with a density greater than that of the glass liquid gradually move away from the center and are thrown into the slag accumulation channel on the inner wall of the centrifugal cylinder. The impurities such as bubbles with a density less than that of the glass liquid gradually gather towards the center. The pure glass liquid in the middle area passes through the raised built-in nozzles and is rapidly ejected from the drawing nozzles for wire drawing and forming. The high speed will generate a strong extrusion pressure due to centrifugation, thereby improving the toughness of the glass fiber and further improving the qualification rate of the glass fiber for wind turbine blades. While centrifugal wire drawing, impurity removal can be carried out simultaneously without passing through an impurity removal passage, thus avoiding the temperature decline during the previous impurity removal process and the over-temperature heating in the furnace; or the glass liquid is electrically heated again through a platinum-rhodium wire drawing leakage nozzle, thereby effectively reducing the energy consumption by 10% - 15%.

[0009] After the glass fiber is drawn out, it is immediately cooled by the strong air flow blown by the high-speed rotating glass fiber cooling impeller above the drawing area. Since the glass fiber is very thin, it can be instantaneously cooled and shaped. The formed glass fiber is thrown onto the blanking conveyor belt on the inner wall of the cylinder body and is adsorbed by the blanking conveyor belt, forming multiple spiral lines in the entire inner wall area of the cylinder body. With the movement of the blanking conveyor belt, it is gradually output from the bottom outlet of the cylinder body.

[0010] Due to the relatively large density and heavy mass of the particulate impurities, under the rotational action of the centrifugal cylinder, the particulate impurities lag due to inertia and gradually sink in the slag accumulation channel, and finally accumulate at the bottom of the cylinder body and drip and leak from the leakage nozzle at the center of the bottom of the cylinder body.

[0011] An inhalation channel is provided inside the main shaft. A plurality of low-density component suction inlets are arranged around the upper part of the main shaft in a circumferential direction, and a plurality of high-density component suction inlets are arranged around the bottom of the main shaft in a circumferential direction. Since a small amount of molten glass continuously drips from the nozzle at the center of the bottom of the cylinder block, relatively large particulate impurities will be sucked in through the high-density component suction inlets at the bottom of the main shaft and discharged from the nozzle; while relatively small impurities such as bubbles will enter the low-density component suction inlets at the upper part of the main shaft, and part of them will descend through the inhalation channel inside the main shaft and be discharged from the nozzle.

[0012] In addition, a solution cooling impeller is provided outside the bottom of the cylinder below the wire drawing area. After the molten glass containing impurities drips from the nozzle at the bottom of the cylinder block, it is immediately cooled by the strong airflow blown by the solution cooling impeller rotating at high speed at the bottom of the cylinder, and amorphous solids with inconsistent volumes are formed and fall down.

[0013] Furthermore, a collector is suspended below the centrifugal cylinder. The top of the collector is provided with a solution receiving funnel, and the solution receiving funnel is vertically aligned with the nozzle at the center of the bottom of the cylinder block. The falling amorphous solids will enter the collector through the solution receiving funnel.

[0014] Furthermore, the collector is provided with a door on the side. The rapidly cooled amorphous solids will not adhere inside the collector, and when the equipment is shut down regularly for maintenance, it can be cleaned from the door.

[0015] The blanking conveyor belt is installed on the reversing support rollers at the upper and lower ends of the plate-shaped support frame. A cavity is provided inside the plate-shaped support frame. The surface of the plate-shaped support frame facing the centrifugal cylinder is densely covered with a number of vertical thin strip holes, and the thin strip holes communicate with the cavity; the blanking conveyor belt is closely attached to this surface of the plate-shaped support frame, and a number of micropores are densely arranged on the blanking conveyor belt; all the cavities inside the plate-shaped support frames are connected to the annular negative pressure main pipeline outside the cylinder body, and the annular negative pressure main pipeline is connected to the vacuum pump station, so as to provide a negative pressure adsorption function for the blanking conveyor belt, so that the thrown glass fibers fall in an orderly manner.

[0016] Among them, at least one blanking conveyor belt is equipped with a blanking driving device, and the reversing support rollers of adjacent blanking conveyor belts are connected by universal joints. Even if the blanking conveyor belt adsorbs glass fibers, it is basically in an unloaded state, so multiple blanking conveyor belts can share a set of driving systems, thereby reducing energy consumption.

[0017] The blanking driving device is a blanking motor and a driving roller. The blanking motor drives the driving roller to rotate, and the driving roller drives the blanking conveyor belt to move. The blanking motor and the driving roller are placed outside the cylinder body through the fixed window opened on the cylinder body. The reversing support roller of this blanking conveyor belt then drives the reversing support rollers of other blanking conveyor belts to rotate through a universal joint.

[0018] The plate-shaped support frame of the driven blanking conveyor belt is provided with end plates on both sides. The end plates are placed outside the cylinder through the installation grooves opened on the cylinder body, and a connecting plate is installed between the end plates on both sides, thereby fixing the blanking conveyor belt on the inner wall of the cylinder.

[0019] The beneficial effects of the present invention compared with the prior art are as follows: 1. Reduce energy consumption, avoid temperature decline and over-temperature heating: During the drawing process of glass fiber, the traditional process needs to heat to offset the temperature decline of the glass liquid when flowing through the impurity removal passage, or electrically heat the glass liquid again during drawing to meet the drawing temperature. However, the present invention utilizes the centrifugal force generated by the high-speed rotation of the centrifugal cylinder to achieve impurity removal while drawing, avoiding the temperature decline of the glass liquid when flowing through a long-distance passage, thereby reducing additional heating energy consumption.

[0020] 2. Improve the toughness of glass fiber products: During the centrifugal drawing process, due to the high-speed rotation of the centrifugal cylinder, the pure glass liquid in the middle area will generate a strong extrusion pressure when being thrown out at high speed, which helps to improve the toughness of the glass fiber, making it more tough and durable, thereby improving the quality and qualification rate of the end products of glass fiber for wind turbine blades.

[0021] 3. Small floor area: The high-performance glass fiber drawing equipment of the present invention is designed compactly, with a relatively small floor area, which is conducive to saving production space and reducing production costs. The vertical layout and optimized structural design of the equipment enable the glass fiber to be adsorbed and collected by the blanking conveyor belt immediately after being thrown out, without being thrown far away. It can achieve efficient glass fiber drawing, impurity removal and output processes in a limited space, improving the space utilization rate. Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the schematic diagram of the connection relationship between the present invention and the melting furnace; Figure 3 is the cross-sectional view of the internal structure of the cylinder; Figure 4 is the structural schematic diagram of the centrifugal cylinder and its driving device; Figure 5 is the cross-sectional view of the centrifugal cylinder; Figure 6 is the cross-sectional view of the main shaft; Figure 7 is the schematic diagram of the positional relationship among the drawing nozzle, the slag accumulation channel and the built-in nozzle; Figure 8 is the schematic diagram of the layout structure of the blanking conveyor belt inside the cylinder; Figure 9 isFigure 8 Partial enlarged view of part A; Figure 10 is Figure 9 Partial enlarged view of part B; Figure 11 Schematic structural diagram of the active blanking conveyor belt; Figure 12 Schematic structural diagram of the adsorption surface of the blanking conveyor belt; Figure 13 Schematic structural diagram of the plate-shaped support frame of the blanking conveyor belt and the thin strip holes on its surface; Figure 14 Schematic structural diagram of the driven blanking conveyor belt; Figure 15 Schematic structural diagram of the cylinder body.

[0023] In the figure: 1, centrifugal motor; 2, gearbox; 3, material channel; 4, cylinder body; 5, blanking motor; 6, annular negative pressure main pipeline; 7, glass fiber; 8, winder; 9, gathering roller; 10, impurity collector; 11, vacuum pump station; 12, maintenance ladder; 13, melting furnace; 14, shaft frame; 15, main shaft; 16, thrust bearing; 17, cage; 18, glass fiber cooling impeller; 19, centrifugal cylinder; 20, solution cooling impeller; 21, blanking conveyor belt; 22, solution receiving funnel; 23, warehouse door; 24, nozzle; 25, wire drawing nozzle; 26, slag accumulation channel; 27, built-in nozzle; 28, low-density component suction port; 29, high-density component suction port; 30, suction flow channel; 31, protective cover; 32, driving roller; 33, end plate; 34, connecting plate; 35, reversing support roller; 36, universal joint; 37, micropore; 38, plate-shaped support frame; 39, thin strip hole; 40, fixed window; 41, installation groove. Specific embodiments

[0024] The present invention will be further described below in conjunction with specific embodiments.

[0025] However, the description of the present invention is only for embodiments of structural and functional descriptions, and the scope of the rights of the present invention is not limited by the embodiments described in the text.

[0026] For example, multiple embodiments can have various changes and various forms, and it should be understood that the scope of the rights of the present invention includes equivalents that can implement the technical idea.

[0027] This embodiment is realized through the following technical solutions: Such as Figures 1 to 15As shown in the figure, this embodiment is realized through the following technical solutions: It includes a vertically arranged cylinder 4 with upper and lower openings. In the central position inside the cylinder 4, there is a centrifugal cylinder 19 with an opening at the top. In the center of the centrifugal cylinder 19, there is a main shaft 15 connected to the bottom of the cylinder body. The top end of the main shaft 15 is suspended on the shaft frame 14. An outer ring of the centrifugal cylinder 19 is also provided with a thrust bearing 16 and a cage 17 for sharing the weight of the centrifugal cylinder 19. The cage 17 is fixedly connected to the cylinder 4. The main shaft 15 can be driven by a centrifugal driving device to rotate. The centrifugal driving device in this embodiment is a centrifugal motor 1 and a gearbox 2 connected thereto. The gearbox 2 is fixed on the top of the shaft frame 14. An inspection ladder 12 is provided outside the cylinder 4 for inspecting the centrifugal motor 1 and the gearbox 2.

[0028] An inhalation flow channel 30 is provided inside the main shaft 15. A plurality of low-density component suction ports 28 are arranged around the upper part of the main shaft 15 in a circle, and a plurality of high-density component suction ports 29 are arranged around the bottom of the main shaft 15 in a circle. A number of wire drawing nozzles 25 are arranged on the cylinder wall of the centrifugal cylinder 19. An inner nozzle 27 protruding from the inner wall of the centrifugal cylinder 19 is provided, and the inner nozzle 27 corresponds to the wire drawing nozzle 25 one by one. The cylinder wall is an inclined wavy shape (when the centrifugal cylinder 19 is designed to rotate clockwise from a top-down view, when observed from the front of the centrifugal cylinder 19, the wave direction is from the upper left to the lower right, that is, as Figure 4 shown; when the centrifugal cylinder 19 is designed to rotate counterclockwise, the wave direction is from the upper right to the lower left). The wave trough is a slag accumulation channel 26, and the wire drawing nozzles 25 are arranged at the wave peaks. The bottom of the cylinder body is funnel-shaped, and a leakage nozzle 24 is provided at the center of the bottom of the cylinder body. The leakage nozzle 24 is communicated with the inhalation flow channel 30. A glass fiber cooling impeller 18 is provided in a circle outside the cylinder body above the wire drawing area where the wire drawing nozzles 25 are located. A solution cooling impeller 20 is provided outside the bottom of the cylinder below the wire drawing area.

[0029] A collector 10 is suspended below the centrifugal cylinder 19. The collector 10 is provided with a door 23 on the side, and a solution receiving funnel 22 is provided at the top of the collector 10. The solution receiving funnel 22 is vertically aligned with the leakage nozzle 24 at the center of the bottom of the cylinder body.

[0030] The inner wall of the cylinder 4 is densely provided with a number of blanking conveyor belts 21 with a negative pressure adsorption function on the surface. All the blanking conveyor belts 21 are vertically arranged and have the same running linear speed. The blanking conveyor belts 21 are installed on the reversing support rollers 35 at the upper and lower ends of a plate-shaped support frame 38. A cavity is provided inside the plate-shaped support frame 38. A number of vertical thin strip holes 39 are densely arranged on the surface of the plate-shaped support frame 38 facing the centrifugal cylinder 19. The thin strip holes 39 are communicated with the cavity. The blanking conveyor belts 21 are closely attached to this surface of the plate-shaped support frame 38. A number of micropores 37 are densely arranged on the blanking conveyor belts 21. The cavities inside all the plate-shaped support frames 38 are connected to an annular negative pressure main pipeline 6 outside the cylinder 4, and the annular negative pressure main pipeline 6 is connected to a vacuum pump station 11.

[0031] One of the blanking conveyor belts 21 is equipped with a blanking driving device, and the reversing support rollers 35 of adjacent blanking conveyor belts 21 are connected by universal joints 36. Even if it adsorbs fiberglass, the blanking conveyor belt is basically in an empty load state. Therefore, a set of driving systems can be shared by multiple blanking conveyor belts, thus reducing energy consumption.

[0032] The blanking driving device is a blanking motor 5 and a driving roller 32. The driving roller 32 is located inside the protective cover 31. The blanking motor 5 drives the driving roller 32 to rotate, and the driving roller 32 drives the blanking conveyor belt 21 to move. The blanking motor 5 and the driving roller 32 are placed outside the cylinder body 4 through the fixed window 40 opened on the cylinder body 4. End plates 33 are provided on both sides of the plate-shaped support frame 38 of the driven blanking conveyor belt 21. The end plates 33 are placed outside the cylinder body 4 through the installation groove 41 opened on the cylinder body 4. A connecting plate 34 is installed between the two side end plates 33, thereby fixing the blanking conveyor belt 21 to the inner wall of the cylinder body 4.

[0033] The molten glass liquid in the melting furnace 13 flows into the centrifugal cylinder 19 through the launder 3. Under the high-speed rotation and centrifugal action of the centrifugal cylinder 19, the particulate impurities with a density greater than that of the glass liquid gradually move away from the center and are thrown into the slag accumulation channel 26 on the inner wall of the centrifugal cylinder 19. The impurities such as bubbles with a density less than that of the glass liquid gradually gather towards the center. Due to the relatively large density and heavy mass of the particulate impurities, under the rotational action of the centrifugal cylinder 19, the particulate impurities lag due to inertia and gradually sink in the slag accumulation channel 26, and finally accumulate at the bottom of the cylinder body and drip and leak from the nozzle 24 in the center of the bottom of the cylinder body. Since there is a small amount of glass liquid constantly dripping from the nozzle 24 in the center of the bottom of the cylinder body, the particulate impurities with a relatively large density will be sucked into the high-density component suction port 29 at the bottom of the main shaft 15 and discharged from the nozzle 24; while the impurities such as bubbles with a relatively small density enter the low-density component suction port 28 at the upper part of the main shaft 15, and a part of them descends through the suction flow channel 30 inside the main shaft 15 and is discharged from the nozzle 24. After the glass liquid containing impurities drips from the nozzle 24 at the bottom of the cylinder body, it is immediately cooled by the strong airflow blown by the solution cooling impeller 20 rotating at a high speed at the bottom of the cylinder, and condenses into amorphous solids with inconsistent volumes and falls. The falling amorphous solids enter the impurity collector 10 from the solution receiving funnel 22. The fast-cooled amorphous solids will not adhere. When the equipment is shut down regularly for maintenance, it can be cleaned from the hatch 23. The connecting pipe between the solution receiving funnel 22 and the impurity collector 10 can adopt a lifting and telescopic pipe, and the lifting is carried out by the way of driving gears and racks by a motor. After the impurity collector 10 descends and extends out of the bottom outlet of the cylinder body 4, the hatch 23 is opened for cleaning.

[0034] The pure glass liquid in the middle area is ejected from the drawing nozzle 25 at high speed through the raised built-in nozzle 27 and drawn into filaments. The high speed will generate a strong extrusion pressure by centrifugation, thereby improving the toughness of the glass fiber and further increasing the qualification rate of the end products of the glass fiber for wind turbine blades. During centrifugal drawing, impurity removal can be carried out simultaneously without passing through the impurity removal passage, thus avoiding the temperature decline during the previous impurity removal process and the over-temperature heating in the furnace; or the glass liquid is electrically heated again through a platinum-rhodium drawing nozzle, thereby effectively reducing the energy consumption by 10% - 15%.

[0035] After the glass fiber is drawn out, it is immediately cooled by the strong air flow blown by the glass fiber cooling impeller 18 rotating at high speed above the drawing area. The solution cooling impeller 20 will also enhance the air flow ability from top to bottom in the cylinder. Since the glass fiber is very thin, it can be instantaneously cooled and shaped. The formed glass fiber is thrown onto the blanking conveyor belt 21 on the inner wall of the cylinder 4 and adsorbed by the blanking conveyor belt 21, so that the ejected glass fiber forms multiple turns of spiral lines in the entire inner wall area of the cylinder 4 and falls orderly. With the movement of the blanking conveyor belt 21, it is gradually output from the bottom outlet of the cylinder 4. The glass fiber 7 can finally be wound into a yarn bobbin by the rotating winder 8 through the spindle-shaped gathering roller 9.

[0036] Of course, the above content is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples either. Equivalent changes and improvements made by those of ordinary skill in the art within the essence of the present invention shall fall within the scope covered by the patent of the present invention.

Claims

1. A high-performance glass fiber drawing device, characterized in that, It includes a vertical cylinder body (4) with upper and lower openings. At the central position inside the cylinder body (4), a centrifugal cylinder (19) is provided. The top of the centrifugal cylinder (19) is open. A main shaft (15) connected to the bottom of the cylinder body is provided at the center of the centrifugal cylinder (19). The main shaft (15) can be driven by a centrifugal driving device to rotate. A number of wire drawing nozzles (25) are arranged on the cylinder wall of the centrifugal cylinder (19). The cylinder wall is an inclined wavy shape, and the trough is a slag accumulation channel (26). The wire drawing nozzles (25) are arranged at the wave crests. The bottom of the cylinder body is funnel-shaped, and a leakage nozzle (24) is provided at the center of the bottom of the cylinder body. A circle of glass fiber cooling impellers (18) is provided outside the cylinder body above the wire drawing area where the wire drawing nozzles (25) are located. The inner wall of the cylinder body (4) is densely covered with a number of blanking conveyor belts (21) with a negative pressure adsorption function on the surface. All the blanking conveyor belts (21) are vertically arranged and have the same running linear speed.

2. The high-performance glass fiber drawing equipment according to claim 1, wherein Convex built-in nozzles (27) are provided on the inner wall of the centrifugal cylinder (19), and the built-in nozzles (27) correspond to the wire drawing nozzles (25) one by one.

3. The high-performance glass fiber drawing equipment according to claim 1, characterized in that, An inhalation flow channel (30) is provided inside the main shaft (15). A plurality of low-density component suction ports (28) are opened around the upper part of the main shaft (15), and a plurality of high-density component suction ports (29) are opened around the bottom of the main shaft (15).

4. The high-performance glass fiber drawing equipment according to claim 1, characterized in that A solution cooling impeller (20) is provided outside the bottom of the cylinder below the wire drawing area.

5. The high-performance glass fiber drawing device according to claim 4, characterized in that, A debris collector (10) is suspended below the centrifugal cylinder (19). The top of the debris collector (10) is provided with a solution receiving funnel (22), and the solution receiving funnel (22) is vertically aligned with the leakage nozzle (24) at the center of the bottom of the cylinder body.

6. The high-performance glass fiber drawing equipment according to claim 5, wherein, The debris collector (10) is provided with a hatch (23) on the side.

7. The high-performance glass fiber drawing equipment according to claim 1, characterized in that, The blanking conveyor belt (21) is installed on the reversing support rollers (35) at the upper and lower ends of a plate-shaped support frame (38). There is a cavity inside the plate-shaped support frame (38). A number of vertical thin holes (39) are densely arranged on the side of the plate-shaped support frame (38) facing the centrifugal cylinder (19), and the thin holes (39) communicate with the cavity. The blanking conveyor belt (21) is closely attached to this side of the plate-shaped support frame (38), and a number of micropores (37) are densely arranged on the blanking conveyor belt (21). The cavities inside all the plate-shaped support frames (38) are connected to an annular negative pressure main pipeline (6) outside the cylinder body (4), and the annular negative pressure main pipeline (6) is connected to a vacuum pump station (11).

8. The high-performance glass fiber drawing device according to claim 7, characterized in that, At least one blanking conveyor belt (21) is equipped with a blanking driving device, and the reversing support rollers (35) of adjacent blanking conveyor belts (21) are connected by a universal joint (36).

9. The high-performance glass fiber drawing equipment according to claim 8, characterized in that, The blanking driving device is a blanking motor (5) and a driving roller (32). The blanking motor (5) drives the driving roller (32) to rotate, and the driving roller (32) drives the blanking conveyor belt (21) to move. The blanking motor (5) and the driving roller (32) are placed outside the cylinder body (4) through a fixed window (40) opened on the cylinder body (4).

10. The high-performance glass fiber drawing equipment according to claim 8 or 9, characterized in that End plates (33) are provided on both sides of the plate-shaped support frame (38) of the driven blanking conveyor belt (21). The end plates (33) are placed outside the cylinder body (4) through an installation groove (41) opened on the cylinder body (4), and a connecting plate (34) is installed between the end plates (33) on both sides.

Images