Glass fiber cutting and adding equipment

Abstract

The invention belongs to the technical field of glass fiber processing, and discloses a glass fiber cutting and adding device which comprises a cutting roller and a blade set which can rotationally cut glass fibers, and the cutting direction of the blade set is perpendicular to the conveying direction. The contact roller is mounted on one side of the feeding end of the cutting roller, and the contact roller rotates to guide the glass fibers to the cutting roller; the hollow component is mounted on one side of the feeding end of the contact roller and is provided with a guide channel for glass fibers to pass through; and the air guide mechanism is mounted at the feeding end of the hollow component and is provided with an air flow channel for sending out air, and the air flow channel is communicated with the guide channel. A glass fiber slitting structure is formed in a hollow guiding mode, glass fibers can be guided and conveyed through an airflow guiding mode, so that the glass fibers can be conveniently guided to a cutting position to be slit, the cutting length of the glass fibers can be conveniently controlled, different process requirements are met, the glass fibers can be conveniently pretreated to a certain degree in the guiding process, and the production efficiency is improved. The purposes of improving the glass fiber performance and facilitating smooth cutting are achieved.

Description

Technical Field

[0001] This invention relates to the field of glass fiber processing technology, and more specifically to a glass fiber cutting and adding device. Background Technology

[0002] There is a significant relationship between the length of glass fibers and the quality of the sheet. During the production process, the length and quantity of glass fibers determine the strength and quality of the sheet. Excessively long glass fibers may lead to poor dispersion, causing flocculation and resulting in an uneven sheet; while excessively short fibers may reduce the strength of the sheet.

[0003] The length of glass fibers also affects the appearance quality of the product. Longer glass fibers help improve the appearance of the product, but excessively long fibers may aggregate in the resin, reducing the reinforcing effect. While shorter fibers are better for dispersion, they may affect the mechanical properties of the product.

[0004] Currently, some board production processes use purchased glass fiber, but its length is uniform, generally 9mm. This often results in insufficient glass fiber when producing special boards, and cannot meet the diverse requirements of different application scenarios for glass fiber length, thus affecting the quality and strength of the board. Summary of the Invention

[0005] The purpose of this invention is to provide a glass fiber cutting and adding device to solve the technical problem that the uniform length of glass fibers in the prior art cannot meet the needs of different application scenarios.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0007] A glass fiber cutting and adding device includes a cutting roller with a set of blades capable of rotating to cut glass fibers, the cutting direction being perpendicular to the conveying direction;

[0008] A contact roller is installed on one side of the feed end of the cutting roller, and the contact roller rotates to guide the glass fiber onto the cutting roller;

[0009] A hollow component, installed on one side of the feed end of the contact roller, has a guide channel for the glass fiber to pass through;

[0010] An air guiding mechanism is installed at the feed end of the hollow component and has an airflow channel for delivering air. The airflow channel is connected to the guiding channel, and the airflow enters the guiding channel to guide the glass fiber to the cutting roller for cutting.

[0011] As a preferred embodiment of the present invention, the outer wall of the air guiding mechanism is provided with a frame, one end of the frame extends to the feed end of the contact roller and surrounds the hollow component, the lower surface of the frame is provided with a feed port for glass fiber to enter, and a guide roller is provided inside the frame above the feed port to guide the glass fiber into the hollow component.

[0012] As a preferred embodiment of the present invention, the air guiding mechanism includes an air compressor, a flow regulating valve and a jet nozzle. The jet nozzle is connected to the airflow channel, and a heating wire is disposed between the jet nozzle and the airflow channel. The airflow enters the guiding channel through the heating wire to form a hot airflow channel, and the glass fiber is fed into the contact roller through the hot airflow channel.

[0013] In a preferred embodiment of the present invention, the hollow component includes a fixed end fixed within the frame and a movable end movably disposed on the fixed end. Pressure rollers are disposed within both the fixed end and the movable end. The pressure rollers rotate due to friction from the glass fiber surface, guiding the movement of the glass fiber.

[0014] As a preferred embodiment of the present invention, the cutting roller includes two sets of symmetrically arranged cutting shafts, an outer cylinder is sleeved on the outer wall of the cutting shafts, a cutting outer cylinder and a docking outer cylinder are respectively sleeved on the outer walls of the two sets of cutting shafts, the cutting outer cylinder is connected to the blade assembly, and a cutting groove is formed on the outer surface of the docking outer cylinder;

[0015] The blade set includes blades arranged at equal intervals, with a cutting distance between every two sets of blades. The cutting distances of the three sets of blades are progressively arranged, and the cutting groove is arranged corresponding to the blade.

[0016] The cutting groove is equipped with a telescopic rod, and a movable block is provided at one end of the telescopic rod via a spring. The movable block moves radially along the docking outer cylinder and closes the opening of the cutting groove. The blade engages with the cutting groove and docks with the movable block to cut the glass fiber.

[0017] As a preferred embodiment of the present invention, an arc-shaped piece is provided between every two sets of blades, and the distance from the outer surface of the arc-shaped piece to the tip of the blade is not less than the radius of the glass fiber;

[0018] The arc-shaped sheet is movably abutted against the docking outer cylinder via glass fiber, clamping the glass fiber inside and driving it to be conveyed along the direction of movement.

[0019] As a preferred embodiment of the present invention, a feeding pipe is provided below the cutting roller, a feeding port is provided on the lower surface of the feeding pipe, and a conveyor belt is provided on the feeding pipe at the feeding port;

[0020] The feeding end of the feeding pipe is located between the two sets of cutting rollers, and the feeding pipe has an inner sidewall that is inclined toward the conveyor belt.

[0021] As a preferred embodiment of the present invention, the contact roller is composed of a power roller and two driven rollers. The power roller and one of the driven rollers are arranged in parallel above the two sets of cutting rollers. The power roller and the two driven rollers form a triangular structure. Fiberglass is conveyed around the outside of the power roller and between the two driven rollers.

[0022] The frame has a mounting bracket on one side, and a rotating motor for driving the power roller is mounted on the mounting bracket. The output shaft of the rotating motor is connected to the power roller via a coupling.

[0023] As a preferred embodiment of the present invention, one end of the cutting roller is provided with a drive mechanism mounted on the mounting frame, and the drive mechanism drives the two sets of cutting rollers to rotate in opposite directions.

[0024] The drive mechanism includes a cutting motor, a drive shaft, a drive gear, a reverse gear, a driven gear, and a gear ring, wherein the drive gear and the reverse gear are fixed sequentially on the drive shaft;

[0025] In this configuration, one end of each of the two sets of cutting shafts is fixed to the driven gear and the gear ring, respectively. One set of cutting shafts is externally connected to the driving gear through the driven gear, while the other set of cutting shafts is internally connected to the reverse gear through the gear ring.

[0026] As a preferred embodiment of the present invention, a feeding roller is provided below the frame, and the feeding roller rotates to drive the glass fiber to enter the airflow channel through the feed port.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] This invention employs a hollow guiding structure to construct the glass fiber slitting structure. The airflow guidance facilitates the guiding and conveying of the glass fiber, thereby making it easier to guide the glass fiber to the cutting position for slitting. This also facilitates the control of the glass fiber cutting length, meets different process requirements, and allows for a certain degree of pretreatment of the glass fiber during the guiding process, thereby improving the glass fiber performance and facilitating smooth cutting. Attached Figure Description

[0029] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0030] Figure 1 A schematic diagram of the overall front section structure is provided for embodiments of the present invention;

[0031] Figure 2 A top-sectional structural diagram is provided for embodiments of the present invention;

[0032] Figure 3 A schematic side sectional view of the overall structure is provided for the embodiments of the present invention;

[0033] Figure 4 A side sectional view of the cutting roller is provided for an embodiment of the present invention;

[0034] Figure 5 Provided for embodiments of the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0035] Figure 6 A schematic diagram of the mounting structure of the contact roller is provided for an embodiment of the present invention;

[0036] Figure 7 A top-sectional view of the cutting roller is provided for an embodiment of the present invention;

[0037] Figure 8 A schematic diagram of the installation structure of the drive mechanism is provided for embodiments of the present invention;

[0038] Figure 9 A schematic diagram of the meshing structure of the drive gear and the driven gear is provided for embodiments of the present invention;

[0039] Figure 10 A schematic diagram of the meshing structure of the reverse gear and the gear ring is provided for an embodiment of the present invention.

[0040] The labels in the diagram represent the following:

[0041] 10-Feeding roller; 20-Cutting roller; 30-Contact roller; 40-Hollow component; 50-Air guiding mechanism; 60-Frame; 70-Discharge pipe; 80-Mounting frame;

[0042] 21-Blade assembly; 201-Outer cylinder; 202-Cutting shaft; 203-Matching outer cylinder; 204-Cutting groove; 211-Blade; 212-Arc-shaped blade; 2041-Telescopic rod; 2042-Moving block;

[0043] 31-Driven roller; 32-Driven roller; 33-Rotation motor;

[0044] 41-Guide channel; 42-Fixed end; 43-Moving end; 44-Pressure roller; 431-Electric actuator; 432-Fixed block;

[0045] 51-Airflow channel; 52-Air compressor; 53-Flow regulating valve; 54-Jet nozzle; 55-Heating wire;

[0046] 61-Feed inlet; 62-Guide roller;

[0047] 71-Discharge port; 72-Conveyor belt; 73-Inner sidewall;

[0048] 81-Support frame; 82-Drive mechanism; 821-Cutting motor; 822-Drive shaft; 823-Drive gear; 824-Reverse gear; 825-Driven gear; 826-Gear ring. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] like Figure 1 and Figure 4 As shown, the present invention provides a glass fiber cutting and adding device, including a cutting roller 20 and a blade assembly 21 capable of rotating to cut glass fibers, with the cutting direction perpendicular to the conveying direction;

[0051] The contact roller 30 is installed on one side of the feed end of the cutting roller 20. The contact roller 30 rotates to guide the glass fiber onto the cutting roller 20.

[0052] Hollow component 40 is installed on one side of the feed end of contact roller 30 and has a guide channel 41 for glass fiber to pass through;

[0053] An air guiding mechanism 50 is installed at the feed end of the hollow component 40 and has an airflow channel 51 for delivering air. The airflow channel 51 is connected to the guiding channel 41. The airflow enters the guiding channel 41 and guides the glass fiber to the cutting roller 20 for cutting.

[0054] This invention employs a hollow guiding structure to construct the glass fiber slitting structure. The airflow guidance facilitates the guiding and conveying of the glass fiber, thereby making it easier to guide the glass fiber to the cutting position for slitting. This also facilitates the control of the glass fiber cutting length, meets different process requirements, and allows for a certain degree of pretreatment of the glass fiber during the guiding process, thereby improving the glass fiber performance and facilitating smooth cutting.

[0055] The fiberglass is fed through the hollow component 40 to the contact roller 30, and then guided by the contact roller 30 into the cutting roller 20 for slitting. At the same time, the air guiding mechanism 50 sends the airflow along the fiberglass bundle conveying direction to the guiding channel 41, which is conducive to guiding the fiberglass bundle conveying and helps to organize the fiberglass bundle and improve the fiberglass performance.

[0056] like Figure 1 and Figure 2 As shown, the outer wall of the air guiding mechanism 50 is provided with a frame 60. One end of the frame 60 extends to the feed end of the contact roller 30 and surrounds the hollow component 40. The lower surface of the frame 60 is provided with a feed port 61 for glass fiber to enter. Inside the frame 60, above the feed port 61, a guide roller 62 is provided to guide the glass fiber into the hollow component 40.

[0057] The fiberglass bundle enters the frame 60 through the feed port 61 and is guided into the hollow component 40 by the guide roller 62. At the same time, the air guiding mechanism 50 guides the fiberglass conveying, so that the fiberglass introduced into the hollow component 40 from one end is exposed to the airflow. The airflow further guides the fiberglass, helping to supply the fiberglass to the cutting roller 20 and the contact roller 30.

[0058] like Figure 1 and Figure 3 As shown, the air guiding mechanism 50 includes an air compressor 52, a flow regulating valve 53, and a jet nozzle 54. The jet nozzle 54 is connected to the airflow channel 51. A heating wire 55 is provided between the jet nozzle 54 and the airflow channel 51. The airflow enters the guiding channel 41 through the heating wire 55 to form a hot airflow channel. The glass fiber is fed into the contact roller 30 through the hot airflow channel.

[0059] The flow regulating valve 53 controls the airflow to be sent from the air compressor 52 through the jet nozzle 54. When the airflow enters the airflow channel 51, it is heated by the heating wire 55, thereby forming a hot airflow that is sent into the guide channel 41. This helps to heat the glass fiber during the conveying process, further improves the performance of the glass fiber, helps to reduce the twisting of the glass fiber, and, in conjunction with the airflow, helps to regulate the moving speed and tension of the glass fiber in the guide channel 41, thereby improving the stability and consistency of glass fiber cutting.

[0060] like Figure 1 and Figure 3As shown, the hollow component 40 includes a fixed end 42 fixed in the frame 60 and a movable end 43 movably disposed on the fixed end 42. Pressure rollers 44 are disposed in both the fixed end 42 and the movable end 43. The pressure rollers 44 rotate due to friction on the glass fiber surface, guiding the glass fiber movement.

[0061] A guide channel 41 is formed between the fixed end 42 and the movable end 43 for the glass fiber to pass through. The glass fiber contacts the surface of the pressure roller 44, causing the pressure roller 44 to rotate and further guide the glass fiber to be conveyed. The surface of the pressure roller 44 is coated with a Teflon coating to reduce the frictional resistance of the glass fiber when it moves in the tube, so that the glass fiber can slide more smoothly in the hollow component 40, and prevent the glass fiber from producing burrs or breaking due to friction, thereby ensuring the quality of the glass fiber and the cutting effect.

[0062] like Figure 4 and Figure 5 As shown, the cutting roller 20 includes two sets of symmetrically arranged cutting shafts 202. An outer cylinder 201 is sleeved on the outer wall of the cutting shaft 202. Cutting outer cylinder 201 and docking outer cylinder 203 are respectively sleeved on the outer walls of the two sets of cutting shafts 202. The cutting outer cylinder 201 is connected to the blade assembly 21. A cutting groove 204 is formed on the outer surface of the docking outer cylinder 203.

[0063] The blade group 21 includes blades 211 arranged at equal intervals, with a cutting distance between every two groups of blades 211. The cutting distances of the three blade groups 21 are arranged in a progressive manner, and the cutting groove 204 is arranged corresponding to the blades 211.

[0064] The telescopic rod 2041 is provided in the cutting groove 204. A movable block 2042 is provided at one end of the telescopic rod 2041 via a spring. The movable block 2042 moves radially along the docking outer cylinder 203 and closes the opening of the cutting groove 204. The blade 211 engages with the cutting groove 204 and docks with the movable block 2042 to cut the glass fiber.

[0065] Two sets of cutting shafts 202 form a cutting structure that rotates from both sides to the middle. The cutting outer cylinder 201 and the docking outer cylinder 203 rotate in opposite directions to clamp the glass fiber inside, which makes it easier to constrain the cutting end of the glass fiber and reduce problems such as easy scattering and deformation during glass fiber cutting, thereby reducing the error in the cutting length of the glass fiber bundle.

[0066] Select the appropriate cutting distance blade group 21 according to the actual cutting length requirement. Different cutting distances are formed by distributing different numbers of blades 211 at equal intervals. As the number of blades 211 in the same group increases, the cutting distance decreases, and vice versa. Thus, the corresponding number of blades 211 in each group is set according to the different cutting lengths required.

[0067] When the blade 211 rotates to the position of engaging with the cutting groove 204, the blade 211 pushes the glass fiber into the cutting groove 204 and completes the cutting of the glass fiber by connecting the tip of the blade 211 with the movable block 2042.

[0068] The movable block 2042 is pushed into the cutting groove 204 by the thrust, and squeezes and contracts the spring and telescopic rod 2041, leaving a certain space for the tip of the blade 211, so that the tip of the blade 211 engages with the cutting groove 204 to cut the glass fiber more stably. After the cutting action is completed, as the blade 211 rotates and disengages, the movable block 2042 returns to the initial position by the spring and closes the opening of the cutting groove 204, which helps to prevent glass fiber or debris from entering the cutting groove 204 and further guides the glass fiber to continue cutting along the conveying direction.

[0069] like Figure 4 and Figure 5 As shown, an arc-shaped piece 212 is provided between every two sets of blades 211, and the distance from the outer surface of the arc-shaped piece 212 to the tip of the blade 211 is not less than the radius of the glass fiber.

[0070] The arc-shaped plate 212 is in contact with the outer cylinder 203 via glass fiber, clamping the glass fiber inside and driving it to be transported along the direction of motion.

[0071] The arc-shaped plate 212 and the outer cylinder 203 constrain the glass fiber, which helps to guide the glass fiber downward. While the blade 211 at the cutting position completes the cutting action, the arc-shaped plate 212 above and the glass fiber above the cutting position limit each other, which can reduce the situation of the cut opening spreading when the cutting is completed, and help to control the glass fiber to cut better.

[0072] like Figure 4 As shown, a feeding pipe 70 is provided below the cutting roller 20, a feeding port 71 is provided on the lower surface of the feeding pipe 70, and a conveyor belt 72 is provided at the feeding port 71 of the feeding pipe 70.

[0073] The feeding end of the feeding pipe 70 is located between the two sets of cutting rollers 20, and the feeding pipe 70 has an inner sidewall 73 that is inclined toward the conveyor belt 72.

[0074] The cut glass fiber is guided and fed through the feeding pipe 70 below the cutting roller 20, which facilitates the collection of the cut glass fiber. In conjunction with the inclined inner sidewall 73, the cut glass fiber is guided to fall onto the conveyor belt 72 for feeding.

[0075] like Figure 4 and Figure 6As shown, the contact roller 30 consists of a power roller 31 and two driven rollers 32. The power roller 31 and one of the driven rollers 32 are arranged in parallel above the two sets of cutting rollers 20. The power roller 31 and the two driven rollers 32 form a triangular structure. Fiberglass is conveyed around the outside of the power roller 31 and between the two driven rollers 32.

[0076] The frame 60 has a mounting frame 80 on one side, and a rotating motor 33 for driving the power roller 31 is mounted on the mounting frame 80. The output shaft of the rotating motor 33 is connected to the power roller 31 through a coupling.

[0077] The power roller 31 is driven to rotate by the rotating motor 33, which increases the transmission of glass fiber. At the same time, the glass fiber conveying drives the driven roller 32 to rotate. The guide structure formed by the triangle facilitates the downward bending and conveying of the glass fiber to the cutting position.

[0078] like Figure 7 , Figure 8 and Figure 9 As shown, one end of the cutting roller 20 is provided with a drive mechanism 82 mounted on the mounting frame 80, and the drive mechanism 82 drives the two sets of cutting rollers 20 to rotate in opposite directions;

[0079] The drive mechanism 82 includes a cutting motor 821, a drive shaft 822, a drive gear 823, a reverse gear 824, a driven gear 825, and a gear ring 826. The drive gear 823 and the reverse gear 824 are fixed on the drive shaft 822 in sequence.

[0080] One end of each of the two sets of cutting shafts 202 is fixed to the driven gear 825 and the gear ring 826, respectively. One set of cutting shafts 202 is externally meshed with the drive gear 823 through the driven gear 825, and the other set of cutting shafts 202 is internally meshed with the reverse gear 824 through the gear ring 826.

[0081] The cutting motor 821 controls the drive shaft 822 to rotate, which drives the drive gear 823 to rotate. The external meshing connection with the driven gear 825 drives one set of cutting shafts 202 to rotate in the forward direction. At the same time, the reverse gear 824 internally meshes with the gear ring 826, driving the other set of cutting shafts 202 to rotate in the reverse direction. Thus, the two sets of cutting shafts 202 rotate in opposite directions to complete the cutting of the aforementioned glass fiber bundle.

[0082] like Figure 3 As shown, a feeding roller 10 is provided below the frame 60. The feeding roller 10 rotates and drives the glass fiber to enter the airflow channel 51 through the feed port 61.

[0083] A rotary motor for controlling the unwinding of the glass fiber bundle is provided at one end of the feeding roller 10. The glass fiber bundle is unwound by the feeding roller 10, and the glass fiber bundle is driven to enter the airflow channel 51 through the feed port 61 for feeding.

[0084] The fiberglass bundle is guided into the guide channel 41 by the airflow, and the airflow is heated by the air guide mechanism 50. The hotter airflow improves the performance of the fiberglass, which helps to guide the fiberglass into the cutting roller 20 for more stable cutting. Two sets of counter-rotating cutting shafts 202 drive the blade 211 to mesh with the cutting groove 204, which helps to constrain the fiberglass during cutting, reduce the tendency for it to scatter during cutting, and further guide the fiberglass to continue cutting. The cut fiberglass bundle falls into the feeding pipe 70 and is guided to the conveyor belt 72 for transfer.

[0085] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A glass fiber cutting and adding device, characterized in that, have: The cutting roller (20) has a blade assembly (21) that is capable of rotating to cut glass fiber and whose cutting direction is perpendicular to the conveying direction; A contact roller (30) is installed on one side of the feed end of the cutting roller (20), and the contact roller (30) rotates to guide the glass fiber onto the cutting roller (20); A hollow component (40) is installed on one side of the feed end of the contact roller (30) and has a guide channel (41) for glass fiber to pass through; An air guiding mechanism (50) is installed at the feed end of the hollow component (40) and has an airflow channel (51) for delivering air. The airflow channel (51) is connected to the guiding channel (41). The airflow enters the guiding channel (41) and guides the glass fiber to the cutting roller (20) for cutting.

2. The glass fiber cutting and adding device according to claim 1, characterized in that, The outer wall of the air guiding mechanism (50) is provided with a frame (60). One end of the frame (60) extends to the feed end of the contact roller (30) and surrounds the hollow component (40). The lower surface of the frame (60) is provided with a feed port (61) for glass fiber to enter. A guide roller (62) is provided inside the frame (60) above the feed port (61) to guide the glass fiber into the hollow component (40).

3. The glass fiber cutting and adding device according to claim 1, characterized in that, The air guiding mechanism (50) includes an air compressor (52), a flow regulating valve (53), and a jet nozzle (54). The jet nozzle (54) is connected to the airflow channel (51). A heating wire (55) is provided between the jet nozzle (54) and the airflow channel (51). The airflow enters the guiding channel (41) through the heating wire (55) to form a hot airflow channel. The glass fiber is fed into the contact roller (30) through the hot airflow channel.

4. The glass fiber cutting and adding device according to claim 2, characterized in that, The hollow component (40) includes a fixed end (42) fixed in the frame (60) and a movable end (43) movably disposed on the fixed end (42). Pressure rollers (44) are provided in both the fixed end (42) and the movable end (43). The pressure rollers (44) rotate due to friction on the glass fiber surface, guiding the glass fiber movement.

5. The glass fiber cutting and adding device according to claim 1, characterized in that, The cutting roller (20) includes two sets of symmetrically arranged cutting shafts (202). An outer cylinder (201) is sleeved on the outer wall of the cutting shaft (202). A cutting outer cylinder (201) and a docking outer cylinder (203) are respectively sleeved on the outer walls of the two sets of cutting shafts (202). The cutting outer cylinder (201) is connected to the blade assembly (21). A cutting groove (204) is formed on the outer surface of the docking outer cylinder (203). The blade group (21) includes blades (211) arranged at equal intervals, with a cutting distance between each pair of blades (211), and the cutting distances of the three blade groups (21) are arranged in a progressive manner. The cutting groove (204) is arranged correspondingly to the blades (211). A telescopic rod (2041) is provided in the cutting groove (204). A movable block (2042) is provided at one end of the telescopic rod (2041) by a spring. The movable block (2042) moves radially along the docking outer cylinder (203) and closes the opening of the cutting groove (204). The blade (211) engages with the cutting groove (204) and docks with the movable block (2042) to cut the glass fiber.

6. The glass fiber cutting and adding device according to claim 5, characterized in that, An arc-shaped piece (212) is provided between every two sets of blades (211), and the distance from the outer surface of the arc-shaped piece (212) to the tip of the blade (211) is not less than the radius of the glass fiber; The arc-shaped piece (212) is in contact with the docking outer cylinder (203) via glass fiber, which clamps the glass fiber inside and drives it to be transported along the direction of movement.

7. The glass fiber cutting and adding device according to claim 1, characterized in that, A feeding pipe (70) is provided below the cutting roller (20), a feeding port (71) is provided on the lower surface of the feeding pipe (70), and a conveyor belt (72) is provided on the feeding pipe (70) at the feeding port (71). The feeding end of the feeding pipe (70) is located between the two sets of cutting rollers (20), and the feeding pipe (70) has an inner wall (73) that is inclined toward the conveyor belt (72).

8. The glass fiber cutting and adding device according to claim 1, characterized in that, The contact roller (30) consists of a power roller (31) and two driven rollers (32). The power roller (31) and one of the driven rollers (32) are arranged in parallel above the two sets of cutting rollers (20). The power roller (31) and the two driven rollers (32) form a triangular structure. Fiberglass is conveyed around the outside of the power roller (31) and between the two driven rollers (32). The frame (60) is provided with a mounting bracket (80) on one side, and a rotating motor (33) for driving the power roller (31) is provided on the mounting bracket (80). The output shaft of the rotating motor (33) is connected to the power roller (31) through a coupling.

9. A glass fiber cutting and adding device according to claim 2, characterized in that, One end of the cutting roller (20) is provided with a drive mechanism (82) mounted on the mounting frame (80), and the drive mechanism (82) drives the two sets of cutting rollers (20) to rotate in opposite directions; The drive mechanism (82) includes a cutting motor (821), a drive shaft (822), a drive gear (823), a reverse gear (824), a driven gear (825), and a gear ring (826). The drive gear (823) and the reverse gear (824) are fixed to the drive shaft (822) in sequence. One end of each of the two sets of cutting shafts (202) is fixed to the driven gear (825) and the gear ring (826), respectively. One set of cutting shafts (202) is externally meshed with the drive gear (823) through the driven gear (825), and the other set of cutting shafts (202) is internally meshed with the reverse gear (824) through the gear ring (826).

10. A glass fiber cutting and adding device according to claim 2, characterized in that, A feeding roller (10) is provided below the frame (60). The feeding roller (10) rotates and drives the glass fiber to enter the airflow channel (51) through the feed port (61).

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