A glass fiber production line

Abstract

The present invention is used in the technical field of glass fiber production, and discloses a glass fiber production line, including an outer cylinder. A heating barrel is installed in the middle section of the outer cylinder, and an electric heating coil is arranged inside the side surface of the heating barrel. A feed inlet is arranged on the upper surface of the outer cylinder, and a rotating flap is installed inside the feed inlet. A stirring motor is fixedly installed on the upper surface of the outer cylinder. A stirring mechanism is arranged inside the outer cylinder to accelerate the melting speed of raw materials through efficient stirring. In this glass fiber production line, by arranging a stirring rod inside the heating barrel, the raw materials can be stirred during the melting process, so that the later input raw materials can be evenly heated, thereby accelerating the melting speed of the raw materials, ensuring a high glass fiber production efficiency. By adopting the method of arranging a sliding rod, a working mode is provided in which the stirring rod makes a circular motion and moves up and down at the same time, so that the stirring rod strengthens the stirring effect on the raw materials and improves the melting speed of the raw materials.

Description

Technical Field

[0001] The present invention relates to the technical field of glass fiber production, and particularly to a glass fiber production line. Background Art

[0002] Glass fiber is made from inorganic non-metallic glass by using fibration technology and has excellent physical and chemical properties. Glass fiber materials are light in weight, high in strength, corrosion-resistant, insulating, and high-temperature resistant, and are widely used in the fields of aviation, aerospace, automotive, construction, etc. The production process of glass fiber includes multiple links such as raw material selection, melting preparation, fibration, and stretching processing. The main raw materials of glass fiber are silica sand, limestone, alkali metal carbonate, etc., among which silica sand is the most important raw material because the purity and quality of silica sand have a great impact on the quality of glass fiber. After the raw materials are proportioned, they are melted at high temperature to prepare glass liquid. It is necessary to control the composition and temperature of the glass liquid to ensure the quality of the final product. Currently, the main fibration technologies include spray fibration, gas fibration, and drawing fibration, etc. Among them, spray fibration is to use a high-speed air flow to spray the glass liquid onto a blade to form fibers. This technology is suitable for the preparation of short fibers, but its production efficiency is low. Gas fibration is to use high-pressure oxygen to make the glass liquid flow to form fibers. The advantage of this technology is that the control of the glass liquid composition is more flexible, and fibers with different properties can be prepared. Drawing fibration is to use high-speed stretching of the glass liquid to form fibers. This technology can prepare batch, high-strength, and fine-diameter glass fibers. Among them, the tank furnace drawing method is a common fiber drawing method. The tank furnace drawing method is to melt the raw materials into a glass solution in a furnace, remove the bubbles, and then transport it to a multi-hole spinneret through a passage and draw it into a glass fiber roving at high speed. The furnace can be connected to hundreds of spinnerets through multiple passages for simultaneous production. This process has simple procedures, energy conservation and consumption reduction, stable forming, high efficiency and high output, and is convenient for large-scale fully automated production. However, in this processing method, since the melting speeds of the later input raw materials and the earlier input raw materials are different, the glass solution can only be discharged after a period of time after the raw materials are input, which is not conducive to improving the forming processing efficiency of glass fiber. Summary of the Invention

[0003] The purpose of the present invention is to provide a glass fiber production line to solve the problem of poor melting speed of the later input raw materials proposed in the above background art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a glass fiber production line, comprising an outer cylinder, a heating barrel is installed in the middle section of the outer cylinder, and an electric heating ring is arranged inside the side surface of the heating barrel, a feed port is arranged on the upper surface of the outer cylinder, and a rotating flap is installed inside the feed port, a stirring motor is fixedly installed on the upper surface of the outer cylinder, a spring is connected between the flap and the feed port, and the lower ends of the two flaps are in contact with each other, and a stirring mechanism is arranged inside the outer cylinder to accelerate the melting speed of the raw materials through efficient stirring.

[0005] Preferably, the stirring mechanism includes: a connecting rod, which is fixedly connected to the lower end of the output shaft of the stirring motor, a rotating center rod is installed on the inner bottom surface of the heating barrel, and a sliding slide rod is installed on the upper end of the center rod, a rotating stirring rod is installed on the side surface of the sliding rod, an extrusion rod is fixedly provided on the upper side surface of the sliding rod, one end of the stirring rod located inside the sliding rod is fixedly connected to a linkage gear, and a sliding extrusion block is installed inside the upper end of the outer cylinder.

[0006] By adopting the above technical solution, the extrusion block can push the extrusion rod upward under the support of the spring.

[0007] Preferably, a discharge port is provided on the lower end surface of the heating barrel, a rotating switching disk is installed on the lower end side surface of the outer cylinder, a porous drawing plate is fixedly provided on the upper surface of the switching disk, and a card slot is provided on the upper surface of the switching disk, a sliding card plate is installed on the lower end side surface of the outer cylinder, and an electric heating tube is fixedly installed inside the side surface of the outer cylinder where the card plate is located, a cooling cylinder is fixedly installed on the lower surface of the outer cylinder, and an air pump is fixedly installed on the lower surface of the outer cylinder on one side of the cooling cylinder.

[0008] By adopting the above technical solution, the formed glass fiber can be cooled faster.

[0009] Preferably, a reflux mechanism is provided at the upper end of the outer cylinder, and the raw materials are preheated by the refluxed hot air to accelerate the melting speed of the raw materials.

[0010] By adopting the above technical solution, the raw materials can be heated and melted more quickly after being put into the heating barrel.

[0011] Preferably, the reflux mechanism includes a pressure box, which is fixedly arranged on the upper end side surface of the outer cylinder, and a rotating impeller is installed inside the pressure box, and a driving gear is fixedly arranged on one end of the rotating shaft of the impeller, a reflux pipe is connected between the lower end of the pressure box and the output end of the air pump, a connecting ring is fixedly arranged on the upper surface of the outer cylinder, and a connecting pipe is connected between the upper surface of the connecting ring and the upper end of the pressure box, and a yield groove is opened on the upper surface of the outer cylinder below the connecting ring.

[0012] By adopting the above technical solution, the connecting ring can inject hot air into the inner part of the outer tube through the clearance groove.

[0013] Preferably, the reflux mechanism also includes: a leakage ring, which is rotatably installed inside the upper end side surface of the outer cylinder, and a partition plate is fixedly provided on the upper surface of the leakage ring, a pressure relief port is provided on the side surface of the outer cylinder below the leakage ring, and a protective cover is provided on the end of the pressure relief port facing the inside of the outer cylinder, a closing plate is fixedly provided on the inner top surface of the heating barrel, a feed ring is fixedly provided on the outer surface of the middle section of the sliding rod, and a leakage port is provided on the side surface of the feed ring.

[0014] By adopting the above technical solution, the material leakage port can be used to feed raw materials into the heating barrel while keeping the heating barrel closed.

[0015] Preferably, the connecting rod and the sliding rod are slidingly connected, the side surface of the stirring rod is provided with arc-shaped blades, the extrusion rods are evenly distributed on the upper side surface of the sliding rod, the side surface of the center rod is fixedly provided with a tooth block, and the center rod is meshed with the linkage gear through the tooth block, a spring is connected between the extrusion block and the outer cylinder, and the upper end of the extrusion block is designed as a slope.

[0016] By adopting the above technical solution, the stirring rod rotates and stirs the material during the process of moving up and down.

[0017] Preferably, the upper surface of the switching disk is in fit with the lower end of the discharge port, the slots are evenly distributed on the upper surface of the switching disk, a spring is connected between the card plate and the outer cylinder, and the lower end of the card plate is connected to the switching disk through the slot, the electric heating tube is located directly above the porous drawing plate on one side, the interior of the side surface of the cooling cylinder is hollow, and the inner surface of the cooling cylinder is porous hollow design, and the internal cavity of the cooling cylinder is connected to the air inlet end of the air pump through a pipe.

[0018] By adopting the above technical solution, the cooling cylinder can cool the drawn glass fiber by inhaling air.

[0019] Preferably, the inner surface of the pressure box fits with the outer surface of the impeller, and the impeller and the driving gear are concentrically arranged.

[0020] By adopting the above technical solution, the impeller can drive the driving gear to rotate under the drive of the airflow.

[0021] Preferably, the outer surface of the material leakage ring inside the partition plate is designed with a hollow structure. On the upper surface of the material leakage ring outside the partition plate, tooth blocks are evenly and fixedly arranged. The upper end surface of the partition plate is in contact with the top surface of the outer cylinder cavity where the material leakage ring is located. A material sliding port is formed between the lower end of the outer cylinder cavity where the material leakage ring is located and the heating barrel, and the lower end of the material sliding port penetrates through the inner surface of the upper end of the heating barrel. The material leakage ring is meshed with the driving gear through the tooth blocks. The protective cover is designed as a conical hollow structure, and the tip of the protective cover faces the inside of the outer cylinder. The closing plate is designed in an arc shape, and the outer surface of the closing plate is in contact with the inner surface of the feeding ring, and the outer surface of the feeding ring is in contact with the inner surface of the heating barrel. The material leakage ports are evenly distributed on the outer surface of the feeding ring. One end of the material leakage port obliquely penetrates downward through the inner surface of the material leakage port, and the obliquely downward end of the material leakage port is in contact with the outer surface of the closing plate. The upper end of the material leakage port is directly opposite to the material sliding port.

[0022] With the above technical solution, the material in the material sliding port can be put into the heating barrel through the material leakage port.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: This glass fiber production line:

[0024] 1. By arranging the stirring rod inside the heating barrel, the raw materials can be stirred during the melting process, so that the later input raw materials can be evenly heated, thereby accelerating the melting speed of the raw materials and ensuring a high production efficiency of glass fiber.

[0025] Furthermore, by arranging the sliding rod, a working mode is provided in which the stirring rod makes a circular motion and moves up and down at the same time, so that the stirring rod can strengthen the stirring effect on the raw materials and improve the melting speed of the raw materials.

[0026] Even further, by arranging the linkage gear, a working mode is provided in which the stirring rod rotates while making a vertical displacement, so that the stirring rod can use the arc-shaped blades to stir up the unmelted and settled materials upward, so that the unmelted raw materials will not be discharged from the discharge port and cause blockage of the porous wire drawing plate.

[0027] 2. By arranging a cooling cylinder with a porous hollow design on the inner wall below the discharge port, and using the air pump to suck the inner cavity of the cooling cylinder, the glass fiber formed during the wire drawing process below the cooling cylinder can be cooled rapidly, reducing the possibility of the formed glass fibers sticking to each other.

[0028] Furthermore, through the return pipe, the gas used to cool the glass fiber is injected upward to the upper surface of the material leakage ring, providing a working mode for preheating the raw materials about to leak into the heating barrel on the upper surface of the material leakage ring, so that the raw materials can be rapidly heated and melted after being put into the heating barrel, and the overall working efficiency is improved.

[0029] Furthermore, through the settings of the closing plate and the feeding ring, a method is provided for gradually feeding raw materials into the heating barrel while maintaining the internal pressure of the heating barrel, so that the raw materials inside the heating barrel can maintain a certain pressure during the melting process, reducing the probability of bubble generation. Brief Description of the Drawings

[0030] Figure 1 It is a schematic three-dimensional structure diagram of the whole invention;

[0031] Figure 2 It is a schematic three-dimensional structure diagram of the connection between the outer cylinder and the pressure box of the present invention;

[0032] Figure 3 It is a schematic three-dimensional structure diagram of the sectional plane of the whole invention;

[0033] Figure 4 It is a schematic three-dimensional structure diagram of the connection between the pressure box and the impeller of the present invention;

[0034] Figure 5 It is a schematic sectional three-dimensional structure diagram of the connection between the material leakage ring and the partition plate of the present invention;

[0035] Figure 6 It is a schematic sectional three-dimensional structure diagram of the connection between the outer cylinder and the relief groove of the present invention;

[0036] Figure 7 It is a schematic sectional three-dimensional structure diagram of the connection between the outer cylinder and the electric heating tube of the present invention;

[0037] Figure 8 It is a schematic three-dimensional structure diagram of the connection between the switching disk and the porous wire drawing plate of the present invention;

[0038] Figure 9 It is a schematic sectional three-dimensional structure diagram of the connection between the sliding rod and the feeding ring of the present invention;

[0039] Figure 10 It is a schematic sectional three-dimensional structure diagram of the connection between the central rod and the linkage gear of the present invention.

[0040] In the figure: 1. Outer cylinder; 2. Heating barrel; 3. Feeding port; 4. Flap; 5. Stirring motor; 6. Connecting rod; 7. Central rod; 8. Sliding rod; 9. Stirring rod; 10. Extrusion rod; 11. Linkage gear; 12. Extrusion block; 13. Discharge port; 14. Switching disk; 15. Porous wire drawing plate; 16. Card slot; 17. Card plate; 18. Electric heating tube; 19. Cooling cylinder; 20. Air pump; 21. Pressure box; 22. Impeller; 23. Driving gear; 24. Return pipe; 25. Connecting ring; 26. Connecting pipe; 27. Relief groove; 28. Material leakage ring; 29. Partition plate; 30. Pressure relief port; 31. Protective cover; 32. Closing plate; 33. Feeding ring; 34. Material leakage port; 35. Material sliding port. Detailed Description of the Preferred Embodiment

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] Please refer to Figure 1-10 , the present invention provides a technical solution: a glass fiber production line. Embodiment 1

[0043] In this embodiment, it is disclosed that: an outer cylinder 1, a heating barrel 2 is installed in the middle section of the outer cylinder 1, and an electric heating coil is arranged inside the side surface of the heating barrel 2. A feeding port 3 is arranged on the upper surface of the outer cylinder 1, and a rotating flap 4 is installed inside the feeding port 3. A stirring motor 5 is fixedly installed on the upper surface of the outer cylinder 1. A spring is connected between the flap 4 and the feeding port 3, and the lower ends of the two flaps 4 are in contact with each other. A stirring mechanism is arranged inside the outer cylinder 1 to accelerate the melting speed of the raw materials through efficient stirring;

[0044] The stirring mechanism includes: a connecting rod 6, the connecting rod 6 is fixedly connected to the lower end of the output shaft of the stirring motor 5. A rotating central rod 7 is installed on the inner bottom surface of the heating barrel 2, and a sliding sliding rod 8 is installed at the upper end of the central rod 7. A rotating stirring rod 9 is installed on the side surface of the sliding rod 8. An extrusion rod 10 is fixedly arranged on the upper side surface of the sliding rod 8. One end of the stirring rod 9 located inside the sliding rod 8 is fixedly connected with a linkage gear 11. A sliding extrusion block 12 is installed inside the upper end of the outer cylinder 1;

[0045] A discharge port 13 is opened on the lower end surface of the heating barrel 2. A rotating switching disk 14 is installed on the lower side surface of the outer cylinder 1. A porous wire drawing plate 15 is fixedly arranged on the upper surface of the switching disk 14, and a card slot 16 is opened on the upper surface of the switching disk 14. A sliding clamping plate 17 is installed on the lower side surface of the outer cylinder 1, and an electric heating tube 18 is fixedly installed inside the side surface of the outer cylinder 1 where the clamping plate 17 is located. A cooling cylinder 19 is fixedly arranged on the lower surface of the outer cylinder 1, and an air pump 20 is fixedly installed on the lower surface of the outer cylinder 1 on one side of the cooling cylinder 19;

[0046] The connecting rod 6 and the sliding rod 8 are in sliding connection. Arc-shaped blades are arranged on the side surface of the stirring rod 9. The extrusion rods 10 are evenly distributed on the upper side surface of the sliding rod 8. Tooth blocks are fixedly arranged on the side surface of the central rod 7, and the central rod 7 is meshed with the linkage gear 11 through the tooth blocks. A spring is connected between the extrusion block 12 and the outer cylinder 1, and the upper end of the extrusion block 12 is designed as an inclined surface;

[0047] The upper surface of the switching plate 14 is in contact with the lower end of the discharge port 13. The card slots 16 are evenly distributed on the upper surface of the switching plate 14. A spring is connected between the clamping plate 17 and the outer cylinder 1, and the lower end of the clamping plate 17 is engaged with the switching plate 14 through the card slot 16. The electric heating tube 18 is located directly above the porous wire drawing plate 15 on one side. The inner side surface of the cooling cylinder 19 is designed to be hollow, and the inner side surface of the cooling cylinder 19 is a porous and hollowed-out design. The internal cavity of the cooling cylinder 19 is connected to the intake end of the air pump 20 through a pipeline;

[0048] During the processing, the raw materials are put in through the feed inlet 3. At this time, the flap 4 rotates to both sides under the extrusion of the raw materials to let the raw materials pass through. After the raw materials fall, the flap 4 turns up under the support of the spring and fits together to restore the closure of the feed inlet 3;

[0049] After the raw materials enter the heating barrel 2, they are heated and melted by the electric heating coil inside the side surface of the heating barrel 2. During the process, the stirring motor 5 is started, and the stirring motor 5 drives the connecting rod 6 to rotate. At this time, the connecting rod 6 drives the central rod 7 to rotate synchronously through the sliding rod 8. The stirring rod 9 on the side surface of the sliding rod 8 stirs the molten raw materials during the circular motion. When the extrusion rod 10 rotates to the extrusion block 12, it extrudes the inclined surface of the extrusion block 12. At this time, the extrusion rod 10 is driven to move up with the extrusion rod 10, and the linkage gear 11 at one end of the stirring rod 9 rotates relative to the sliding rod 8 during the upward movement through the engagement with the central rod 7, so as to achieve a better stirring effect on the raw materials and accelerate the melting of the raw materials;

[0050] When the fluidity of the raw materials inside the heating barrel 2 is insufficient, the upward movement of the sliding rod 8 will cause the stirring rod 9 to be subjected to a large resistance. At this time, the extrusion rod 10 drives the extrusion block 12 to slide downward to let the extrusion rod 10 pass when it contacts the inclined surface of the extrusion block 12 under the resistance of the stirring rod 9, so that the extrusion rod 10 and the stirring rod 9 will not be deformed or damaged when the fluidity of the raw materials inside the heating barrel 2 is insufficient;

[0051] After the raw materials inside the heating barrel 2 are completely melted, at this time, the clamping plate 17 is slid upward, and the clamping plate 17 is disengaged from the engagement with the card slot 16 so that the switching plate 14 can rotate until the porous wire drawing plate 15 with the appropriate aperture rotates to directly below the discharge port 13. The glass fiber is drawn through the cooperation of the external wire drawing machine and the porous wire drawing plate 15. When new raw materials are put in after the drawing is completed, at this time, the switching plate 14 is rotated so that the porous wire drawing plate 15 rotates away from the discharge port 13. At this time, the porous wire drawing plate 15 rotates to below the electric heating tube 18 and is heated, which can avoid the solidification and blockage of the glass solution on the porous wire drawing plate 15 and facilitate the cleaning of the porous wire drawing plate 15 when it is rotated out of the outer cylinder 1 later;

[0052] When the glass fiber is driven downward by the wire drawing machine, the air pump 20 starts to draw in external air through the holes on the inner surface of the cooling cylinder 19. The drawn glass fiber is cooled during the air flow so that the glass fiber can be cooled quickly. Embodiment 2

[0053] This embodiment is based on the embodiment 1 and discloses that: a reflux mechanism is provided at the upper end of the outer cylinder 1, and the raw material is preheated by the refluxed hot air to accelerate the melting speed of the raw material;

[0054] The reflux mechanism includes a pressure box 21, which is fixedly arranged on the upper side surface of the outer cylinder 1, and a rotating impeller 22 is installed inside the pressure box 21, and a driving gear 23 is fixedly arranged at one end of the rotating shaft of the impeller 22, a reflux pipe 24 is connected between the lower end of the pressure box 21 and the output end of the air pump 20, a connecting ring 25 is fixedly arranged on the upper surface of the outer cylinder 1, and a connecting pipe 26 is connected between the upper surface of the connecting ring 25 and the upper end of the pressure box 21, and a clearance groove 27 is opened on the upper surface of the outer cylinder 1 below the connecting ring 25;

[0055] The reflux mechanism further includes: a leakage ring 28, which is rotatably mounted inside the upper end side surface of the outer cylinder 1, and a partition plate 29 is fixedly arranged on the upper surface of the leakage ring 28, a pressure relief port 30 is provided on the side surface of the outer cylinder 1 below the leakage ring 28, and a protective cover 31 is provided on the end of the pressure relief port 30 facing the inside of the outer cylinder 1, a closing plate 32 is fixedly arranged on the inner top surface of the heating barrel 2, a feed ring 33 is fixedly arranged on the outer surface of the middle section of the sliding rod 8, and a leakage port 34 is provided on the side surface of the feed ring 33;

[0056] The inner surface of the pressure box 21 fits with the outer surface of the impeller 22, and the impeller 22 and the driving gear 23 are concentrically arranged;

[0057] The outer surface of the leakage ring 28 on the inner side of the partition plate 29 is hollowed out, and the upper surface of the leakage ring 28 on the outer side of the partition plate 29 is evenly fixed with gear blocks, and the upper end surface of the partition plate 29 is in contact with the top surface of the cavity of the outer cylinder 1 where the leakage ring 28 is located, and a sliding port 35 is provided between the lower end of the cavity of the outer cylinder 1 where the leakage ring 28 is located and the heating barrel 2, and the lower end of the sliding port 35 passes through the inner surface of the upper end of the heating barrel 2, and the leakage ring 28 is meshed and connected with the driving gear 23 through the gear blocks, and the protective cover 31 is of conical hollow design, and The tip of the protective cover 31 is arranged toward the inside of the outer cylinder 1, the closing plate 32 is designed to be arc-shaped, and the outer surface of the closing plate 32 is in contact with the inner surface of the feed ring 33, and the outer surface of the feed ring 33 is in contact with the inner surface of the heating barrel 2, the leakage openings 34 are evenly distributed on the outer surface of the feed ring 33, and one end of the leakage opening 34 obliquely penetrates the inner surface of the leakage opening 34 downward, and the oblique downward end of the leakage opening 34 is in contact with the outer surface of the closing plate 32, and the upper end of the leakage opening 34 is directly opposite to the sliding opening 35;

[0058] When the raw material is put in through the feed port 3, the raw material falls on the leakage ring 28 on the inner side of the partition plate 29. At this time, the hot air sucked in by the air pump 20 is output upward to the inside of the pressure box 21 through the return pipe 24, and the air drives the impeller 22 to rotate. The impeller 22 drives the leakage ring 28 and the leakage ring 28 to rotate through the engagement of the driving gear 23 and the leakage ring 28. At this time, the raw material in the leakage ring 28 rotates to the top of the sliding port 35 after one circle. During the process, the airflow that drives the impeller 22 to rotate is injected into the connecting ring 25 through the connecting pipe 26 and finally sprayed to the raw material on the leakage ring 28 through the giving way groove 27 to preheat the raw material. At this time, the raw material moved to the top of the sliding port 35 falls downward to the inside of the sliding port 35 through the hollow part of the leakage ring 28, and the air is discharged through the pressure relief port 30 on one side of the protective cover 31. The protective cover 31 serves to shield the raw material and prevent the raw material from being discharged through the pressure relief port 30.

[0059] When the sliding rod 8 stirs the material through the stirring rod 9, the sliding rod 8 drives the feeding ring 33 to rotate. When the leakage port 34 on the side surface of the feeding ring 33 rotates to face the sliding port 35, the material in the sliding port 35 enters the leakage port 34. At this time, since the lower end of the leakage port 34 is blocked and closed by the closing plate 32, the material will not directly fall into the heating barrel 2 and will not cause pressure and heat leakage in the heating barrel 2. As the feeding ring 33 rotates, the leakage port 34 containing the material rotates one end distance and is misaligned with the closing plate 32, so that the material slides down and falls into the heating barrel 2, completing the addition of the material.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A glass fiber production line, comprising an outer cylinder (1), a heating barrel (2) is installed in the middle section of the outer cylinder (1), and an electric heating coil is arranged inside the side surface of the heating barrel (2). The upper surface of the outer cylinder (1) is provided with a feed inlet (3), and a rotating flap (4) is installed inside the feed inlet (3). A stirring motor (5) is fixedly installed on the upper surface of the outer cylinder (1), and it is characterized in that: A spring is connected between the flap (4) and the feed port (3), and the lower ends of the two flaps (4) are in contact with each other. A stirring mechanism is provided inside the outer cylinder (1) to accelerate the melting speed of the raw materials through efficient stirring. The stirring mechanism comprises: a connecting rod (6), the connecting rod (6) being fixedly connected to the lower end of the output shaft of the stirring motor (5); a rotating center rod (7) being installed on the inner bottom surface of the heating barrel (2); and a sliding rod (8) being installed on the upper end of the center rod (7); a rotating stirring rod (9) being installed on the side surface of the sliding rod (8); an extrusion rod (10) being fixedly arranged on the upper side surface of the sliding rod (8); one end of the stirring rod (9) located inside the sliding rod (8) being fixedly connected to a linkage gear (11); and a sliding extrusion block (12) being installed inside the upper end of the outer barrel (1); A reflux mechanism is provided at the upper end of the outer cylinder (1), and the raw material is preheated by refluxed hot air to accelerate the melting speed of the raw material. The reflux mechanism comprises a pressure box (21), the pressure box (21) is fixedly arranged on the upper end side surface of the outer cylinder (1), and a rotating impeller (22) is installed inside the pressure box (21), and a driving gear (23) is fixedly arranged at one end of the rotating shaft of the impeller (22), a reflux pipe (24) is connected between the lower end of the pressure box (21) and the output end of the air pump (20), a connecting ring (25) is fixedly arranged on the upper surface of the outer cylinder (1), and a connecting pipe (26) is connected between the upper surface of the connecting ring (25) and the upper end of the pressure box (21), and a clearance groove (27) is opened on the upper surface of the outer cylinder (1) below the connecting ring (25); The reflux mechanism further includes: a material leakage ring (28), which is rotatably installed inside the upper side surface of the outer cylinder (1), and a partition plate (29) is fixedly arranged on the upper surface of the material leakage ring (28). A pressure relief port (30) is formed in the side surface of the outer cylinder (1) below the material leakage ring (28), and a protective cover (31) is arranged at one end of the pressure relief port (30) facing the inside of the outer cylinder (1). A closing plate (32) is fixedly arranged on the inner top surface of the heating barrel (2). A feeding ring (33) is fixedly arranged on the outer surface of the middle section of the sliding rod (8), and a material leakage port (34) is formed in the side surface of the feeding ring (33). The outer surface of the material leakage ring (28) inside the partition plate (29) is of a hollow design, and tooth blocks are evenly fixedly arranged on the upper surface of the material leakage ring (28) outside the partition plate (29). The upper end surface of the partition plate (29) is in fit with the top surface of the cavity of the outer cylinder (1) where the material leakage ring (28) is located. A material sliding port (35) is formed between the lower end of the cavity of the outer cylinder (1) where the material leakage ring (28) is located and the heating barrel (2), and the lower end of the material sliding port (35) penetrates through the inner side surface of the upper end of the heating barrel (2). The material leakage ring (28) is meshed and connected with the driving gear (23) through the tooth blocks. The protective cover (31) is of a conical hollow design, and the tip of the protective cover (31) faces the inside of the outer cylinder (1). The closing plate (32) is of an arc design, and the outer surface of the closing plate (32) is in fit with the inner surface of the feeding ring (33), and the outer surface of the feeding ring (33) is in fit with the inner surface of the heating barrel (2). The material leakage ports (34) are evenly distributed on the outer surface of the feeding ring (33), and one end of the material leakage port (34) obliquely penetrates through the inner side surface of the material leakage port (34), and the obliquely downward end of the material leakage port (34) is in fit with the outer surface of the closing plate (32). The upper end of the material leakage port (34) is directly opposite to the material sliding port (35).

2. The glass fiber production line according to claim 1, characterized in that: An outlet (13) is formed in the lower end surface of the heating barrel (2). A rotating switching disk (14) is installed on the lower side surface of the outer cylinder (1). A porous wire drawing plate (15) is fixedly arranged on the upper surface of the switching disk (14), and a clamping groove (16) is formed in the upper surface of the switching disk (14). A sliding clamping plate (17) is installed on the lower side surface of the outer cylinder (1), and an electric heating tube (18) is fixedly installed inside the side surface of the outer cylinder (1) where the clamping plate (17) is located. A cooling cylinder (19) is fixedly arranged on the lower surface of the outer cylinder (1), and an air pump (20) is fixedly installed on the lower surface of the outer cylinder (1) on one side of the cooling cylinder (19).

3. The fiberglass production line according to claim 1, characterized in that: The connecting rod (6) is in sliding connection with the sliding rod (8). Arc-shaped blades are arranged on the side surface of the stirring rod (9). The extrusion rods (10) are evenly distributed on the upper side surface of the sliding rod (8). Tooth blocks are fixedly arranged on the side surface of the central rod (7), and the central rod (7) is meshed and connected with the linkage gear (11) through the tooth blocks. A spring is connected between the extrusion block (12) and the outer cylinder (1), and the upper end of the extrusion block (12) is of an inclined surface design.

4. A fiberglass production line according to claim 2, wherein: The upper surface of the switching disk (14) is in contact with the lower end of the discharge port (13). The card slots (16) are evenly distributed on the upper surface of the switching disk (14). A spring is connected between the clamping plate (17) and the outer cylinder (1), and the lower end of the clamping plate (17) is engaged with the switching disk (14) through the card slot (16). The electric heating tube (18) is located directly above the one-sided perforated wire drawing plate (15). The inner side surface of the cooling cylinder (19) is designed to be hollow, and the inner side surface of the cooling cylinder (19) is a porous hollow design. The internal cavity of the cooling cylinder (19) is connected to the intake end of the air pump (20) through a pipeline.

5. A glass fiber production line according to claim 1, characterized in that: The inner side surface of the pressure box (21) is in contact with the outer surface of the impeller (22), and the impeller (22) and the driving gear (23) are concentrically arranged.

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